WO2017193277A1 - 一种反馈信息的传输方法、相关设备及通信系统 - Google Patents

一种反馈信息的传输方法、相关设备及通信系统 Download PDF

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Publication number
WO2017193277A1
WO2017193277A1 PCT/CN2016/081536 CN2016081536W WO2017193277A1 WO 2017193277 A1 WO2017193277 A1 WO 2017193277A1 CN 2016081536 W CN2016081536 W CN 2016081536W WO 2017193277 A1 WO2017193277 A1 WO 2017193277A1
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Prior art keywords
downlink
uplink
subframe
feedback information
terminal device
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Ceased
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PCT/CN2016/081536
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English (en)
French (fr)
Inventor
官磊
郑娟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP16901232.5A priority Critical patent/EP3447953B1/en
Priority to PCT/CN2016/081536 priority patent/WO2017193277A1/zh
Priority to CN201680082370.1A priority patent/CN108702253B/zh
Publication of WO2017193277A1 publication Critical patent/WO2017193277A1/zh
Priority to US16/185,278 priority patent/US10764015B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for transmitting feedback information, a related device, and a communication system.
  • the Long Term Evolution (LTE) system supports two types of duplex modes: Frequency Division Duplexing (FDD) and Time Division Duplexing (TDD).
  • FDD Frequency Division Duplexing
  • TDD Time Division Duplexing
  • the FDD means that the uplink and downlink transmissions are performed on different carrier frequency bands, and both the terminal device and the access network device allow simultaneous reception and transmission of signals.
  • TDD means that uplink and downlink transmissions are performed on the same carrier frequency band, and the terminal equipment/access network equipment performs transmission/reception or reception/transmission of channels at different times.
  • HARQ Hybrid Automatic Repeat Request
  • the feedback information of the terminal equipment to a downlink carrier includes an acknowledgement (English: Acknowledgement, ACK) and a non-acknowledgement (NACK). .
  • the subframe interval between the subframe in which the terminal device receives the Physical Downlink Shared Channel (PDSCH) and the uplink subframe in which the terminal device feeds back the ACK or NACK corresponding to the PDSCH is Pre-defined, thus guaranteeing the feedback of the terminal device to ACK or NACK and the reception of the ACK or NACK by the access network device.
  • PDSCH Physical Downlink Shared Channel
  • the terminal device After receiving the downlink data carried by the PDSCH in the downlink subframe n-4, the terminal device feeds back the ACK or NACK corresponding to the PDSCH in the uplink subframe n.
  • the uplink and downlink configurations of the radio frame are fixed.
  • LTE currently supports 7 different TDD uplink and downlink configurations.
  • D is a downlink subframe (English: Downlink Subframe)
  • S is a special subframe (English: Special Subrame, SSF)
  • U is an uplink subframe (English: Uplink Subframe).
  • the timing relationship or timing relationship between the PDSCH and its corresponding ACK or NACK is as shown in FIG. 1B.
  • the subframe of the standard number is the uplink subframe n for feeding back ACK or NACK, and the number of the identifier indicates that feedback is needed in the uplink subframe n.
  • the PDSCH in the downlink subframe set of nk (k belongs to K)
  • the ACK or NACK corresponding to the PDSCH in the frame specifically n-7 is the downlink subframe 5, and n-6 is the downlink subframe 6.
  • the spectrum deployed by the serving cell of the existing LTE system is the licensed spectrum, that is, it can only be used by the carrier network that purchased the licensed spectrum.
  • Unattended spectrum also known as unlicensed spectrum
  • unlicensed spectrum is gaining increasing attention because unlicensed spectrum does not require purchase and can be used by any operator.
  • spectrum resources which limits the service capabilities of LTE systems based on licensed spectrum. Therefore, the LTE system uses an unlicensed spectrum as an evolution direction, and an LTE system deployed on an unlicensed spectrum is called an Unlicensed-LTE (U-LTE) system.
  • U-LTE Unlicensed-LTE
  • Resource sharing on the unlicensed spectrum refers to restrictions on the use of specific spectrum, such as emission power, out-of-band leakage, and some additional coexistence strategies.
  • multi-system friendly coexistence on unlicensed spectrum such as between U-LTE and Wireless Fidelity (WiFi) systems, or between multi-operator U-LTE systems, when using unlicensed spectrum
  • some coexistence regulations such as sending and detecting (English: Listen-Before-Talk, LBT).
  • the access network device or the terminal device needs to perform an idle channel assessment (CCA) on the channel where the serving cell is located.
  • CCA idle channel assessment
  • the access network device or the terminal device cannot temporarily transmit a signal on the channel. Until the channel is found to be idle, the access network device or the terminal device can send a signal on the channel, and even in some cases, the access network device or the terminal device needs to perform a random backoff, only in the random backoff.
  • the channel is idle only during the time before the signal can be sent on the channel. Based on this, it can be known that for the LTE system, whether it is an access network device that transmits downlink data or a terminal device that transmits uplink data, data transmission on the unlicensed spectrum is opportunistic. In addition, on the basis of the unlicensed spectrum opportunistic data transmission, the uplink and downlink configuration of the U-LTE system on the unlicensed spectrum can be flexible in order to adapt to the uplink and downlink service requirements of the LTE system.
  • the timing relationship between the predefined PDSCH and the HARQ-ACK in the prior art is difficult to guarantee on the unlicensed spectrum.
  • the CCA mechanism it is impossible to guarantee that the uplink device can compete for unlicensed spectrum resources in the uplink subframe determined under the predefined timing relationship;
  • the flexible uplink and downlink configuration for example, for the FDD system, the U-LTE system cannot guarantee that the subframe corresponding to the fixed four subframe intervals after the start boundary of the subframe of one downlink subframe is the uplink subframe;
  • the U-LTE system cannot use the existing U-LTE system.
  • the embodiments of the present invention provide a method for transmitting feedback information, a related device, and a communication system, which can ensure that the terminal device sends ACK/NACK feedback information reasonably in the U-LTE scenario, and can avoid resource waste.
  • a method for transmitting feedback information comprising:
  • the terminal device Determining, by the terminal device, that the first downlink subframe set is associated with the first uplink subframe, the first downlink subframe set belongs to the at least one downlink burst, and the first uplink subframe is used for sending The first feedback information corresponding to the downlink data in the first downlink subframe set, where the first uplink subframe is in the first uplink burst, and the first uplink burst is in the at least one downlink burst after that;
  • the terminal device sends the first feedback information to the access network device on the first uplink channel.
  • the terminal device determines, according to the received first downlink subframe set, the first uplink subframe associated with the first uplink subframe, so as to transmit the first downlink subframe set in the first uplink subframe.
  • the corresponding feedback information can meet the flexible uplink and downlink configuration in the U-LTE system, and can ensure that the terminal device sends the ACK/NACK feedback information reasonably in the U-LTE scenario, and passes the first uplink.
  • the sub-frame carries the feedback information corresponding to multiple downlink data, which can improve the resource utilization of the transmission and avoid waste of resources.
  • the method further includes:
  • the terminal device determines that the second downlink subframe set is associated with the second uplink subframe, the second downlink subframe set belongs to the at least one downlink burst, and the first downlink subframe set is the And a second subset of the downlink subframes, where the second uplink subframe is used to send the second feedback information corresponding to the downlink data in the second downlink subframe set, where the second uplink subframe is in the first In an uplink burst, the second uplink subframe is after the first uplink subframe;
  • the terminal device determines a second uplink channel in the second uplink subframe
  • the terminal device sends the second feedback information to the access network device on the second uplink channel.
  • this step may enhance the transmission opportunity of the feedback information, thereby improving the probability of successful transmission of the feedback information.
  • the terminal device before sending the second feedback information to the access network device on the second uplink channel ,Also includes:
  • the terminal device determines, according to the overlapping codebook indication information, a second downlink subframe set associated with the second uplink subframe.
  • the content of the second feedback information transmission may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the overhead of the second feedback information may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the method further includes:
  • the third downlink subframe set is associated with the third uplink subframe, the third downlink subframe set belongs to the at least one downlink burst, and the third downlink subframe set and the first The downlink subframe set has no overlap, and the third uplink subframe is used to send the lower one of the third downlink subframe set.
  • the third feedback information corresponding to the row data, where the third uplink subframe is in the first uplink burst or the third uplink subframe is in an uplink burst after the first uplink burst, The third uplink subframe is after the first uplink subframe;
  • the terminal device sends the third feedback information to the access network device on the third uplink channel.
  • the feedback information corresponding to the downlink data included in the at least one downlink burst may be fed back in the third uplink subframe, as compared to the at least one downlink.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the transmission of feedback information corresponding to the downlink data included in the data is
  • the reason is that if the feedback information corresponding to the downlink data in the at least one downlink burst is fed back in the first uplink subframe, if the terminal device does not compete for the unlicensed band resource in the first uplink subframe, then The feedback information corresponding to the downlink data included in the at least one downlink burst cannot be transmitted. In this case, the terminal device determines the third uplink subframe, and can ensure the downlink included in the at least one downlink burst as much as possible. The transmission of partial feedback information corresponding to the data.
  • the terminal device before sending the third feedback information to the access network device on the third uplink channel ,Also includes:
  • the terminal device determines, according to the overlapping codebook indication information, a third downlink subframe set associated with the third uplink subframe.
  • the content of the third feedback information transmission may be determined according to the probability that the first feedback information is successfully transmitted, and the overhead of the third uplink subframe for transmitting the third feedback information may be reduced as much as possible.
  • the terminal device sends the foregoing to the access network device on the first uplink channel Before a feedback, it also includes:
  • the terminal device receives the feedback information bearer indication information sent by the access network device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the first feedback information on the first uplink channel.
  • the resource overhead for transmitting the first feedback information in the first uplink subframe can be saved, and the data transmission efficiency is ensured.
  • the determining, by the terminal device, that the first downlink subframe set is associated with the first uplink subframe includes:
  • the terminal device Determining, by the terminal device, the first downlink subframe set and the first uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Associated.
  • the terminal device can reliably detect the first downlink subframe set, and then transmit the correct first feedback information in the first uplink subframe.
  • the downlink subframe configuration indication information includes a reciprocal in each downlink burst in the at least one downlink burst In the first and/or second to last downlink subframes.
  • the downlink subframe configuration indication information is used to indicate the downlink subframe Configure the number of downlink subframes in the downlink burst where the indication information is located.
  • the determining, by the terminal device, that the second downlink subframe set is associated with the second uplink subframe includes:
  • the terminal device Determining, by the terminal device, the second downlink subframe set and the second uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Union.
  • the terminal device can reliably detect the second downlink subframe set, and then transmit the correct second feedback information in the second uplink subframe.
  • the determining, by the terminal device, that the third downlink subframe set is associated with the third uplink subframe includes:
  • the terminal device Determining, by the terminal device, the third downlink subframe set according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information The association is associated with the third uplink subframe.
  • the terminal device can reliably detect the third downlink subframe set, and then transmit the correct third feedback information in the third uplink subframe.
  • a method for transmitting feedback information comprising:
  • the access network device sends downlink data to the terminal device in a downlink subframe in the at least one downlink burst;
  • the access network device Receiving, by the access network device, the first feedback information sent by the terminal device on a first uplink channel in the first uplink subframe, where the first uplink subframe is associated with the first downlink subframe set, where The first downlink subframe set belongs to the at least one downlink burst, the first feedback information is corresponding to the downlink data in the first downlink subframe set, and the first uplink subframe is in the first In the uplink burst, the first uplink burst is after the at least one downlink burst.
  • the terminal device determines, according to the received first downlink subframe set, the first uplink subframe associated with the first uplink subframe, so as to transmit the first downlink subframe set in the first uplink subframe.
  • the corresponding feedback information can meet the flexible uplink and downlink configuration in the U-LTE system, and can ensure that the terminal device sends the ACK/NACK feedback information reasonably in the U-LTE scenario, and carries multiple downlinks in the first uplink subframe.
  • the feedback information corresponding to the data can improve the resource utilization of the transmission and avoid waste of resources.
  • the method further includes:
  • the second feedback information sent by the terminal device on a second uplink channel in the second uplink subframe where the second uplink subframe is associated with the second downlink subframe set, where the The second downlink subframe set belongs to the at least one downlink burst, the first downlink subframe set is a subset of the second downlink subframe set, and the second feedback information and the second downlink subframe Corresponding to the downlink data in the set, the second uplink subframe is in the first uplink burst, and the second uplink subframe is behind the first uplink subframe.
  • this step may enhance the transmission opportunity of the feedback information, thereby improving the probability of successful transmission of the feedback information.
  • the access network device receives, by using the terminal device, a second uplink channel in the second uplink subframe Before the feedback information, it also includes:
  • the access network device sends the overlapping codebook indication information to the terminal device, where the overlapping codebook indication information is used by the terminal device to determine a second downlink subframe set associated with the second uplink subframe.
  • the content of the second feedback information transmission may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the overhead of the second feedback information may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the method further includes:
  • the third uplink subframe is in the first uplink burst or the third uplink subframe is in an uplink burst after the first uplink burst, the third The uplink subframe is after the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the at least one downlink burst may be fed back in the third uplink subframe, as compared to the at least one downlink, in addition to the feedback in the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the transmission of feedback information corresponding to the downlink data included in the data is fed back in the third uplink subframe, as compared to the at least one downlink, in addition to the feedback in the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the reason is that if the feedback information corresponding to the downlink data in the at least one downlink burst is fed back in the first uplink subframe, if the terminal device does not compete for the unlicensed band resource in the first uplink subframe, then The feedback information corresponding to the downlink data included in the at least one downlink burst cannot be transmitted. In this case, the terminal device determines the third uplink subframe, and can ensure the downlink included in the at least one downlink burst as much as possible. The transmission of partial feedback information corresponding to the data.
  • the access network device receives, by using the terminal device, a third uplink channel in the third uplink subframe Before the three feedbacks, it also includes:
  • the access network device sends the overlapping codebook indication information to the terminal device, where the overlapping codebook refers to The indication information is used by the terminal device to determine a third downlink subframe set associated with the third uplink subframe.
  • the content of the third feedback information transmission may be determined according to the probability that the first feedback information is successfully transmitted, and the overhead of the third uplink subframe for transmitting the third feedback information may be reduced as much as possible.
  • the access network device receives the terminal on a first uplink channel in a first uplink subframe Before the first feedback sent by the device, the method further includes:
  • the access network device sends feedback information bearer indication information to the terminal device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the first uplink channel in the first uplink subframe.
  • the first feedback information is described.
  • the resource overhead for transmitting the first feedback information in the first uplink subframe can be saved, and the data transmission efficiency is ensured.
  • the method further includes:
  • the access network device sends downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration indication information is used
  • the terminal device determines that the first downlink subframe set is associated with the first uplink subframe according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information.
  • the terminal device can reliably detect the first downlink subframe set, and then transmit the correct first feedback information in the first uplink subframe.
  • the downlink subframe configuration indication information includes each downlink protrusion in the at least one downlink burst The first and/or second to last sub-frames in the countdown.
  • the downlink subframe configuration indication information is used to indicate that the downlink subframe configuration indication information is located in a downlink The number of downlink subframes in the transmission.
  • the method further includes:
  • the downlink subframe configuration indication information is used by the terminal device to determine, according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information,
  • the second downlink subframe set is associated with the second uplink subframe.
  • the terminal device can reliably detect the second downlink subframe set, and then transmit the correct second feedback information in the second uplink subframe.
  • the method further includes:
  • the access network device sends downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration indication information is used And determining, by the terminal device, the third downlink subframe set and the third uplink subframe according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information.
  • the terminal device can reliably detect the second downlink subframe set, and then transmit the correct third feedback information in the third uplink subframe.
  • a third aspect provides a terminal device, including a processor, a memory, and a communication module, wherein the memory is configured to store a transmission program code of the feedback information, and the processor is configured to invoke the transmission program code of the feedback information.
  • the processor receives, by using the communication module, downlink data sent by the access network device in a downlink subframe in the at least one downlink burst;
  • the processor determines that the first downlink subframe set is associated with the first uplink subframe, the first downlink subframe set belongs to the at least one downlink burst, and the first uplink subframe is used for sending The first feedback information corresponding to the downlink data in the first downlink subframe set, where the first uplink subframe is in the first uplink burst, and the first uplink burst is in the at least one downlink burst after that;
  • the processor determines a first uplink channel in the first uplink subframe
  • the processor sends the first feedback information to the access network device by using the communication module on the first uplink channel.
  • the terminal device determines, according to the received first downlink subframe set, the first uplink subframe that is associated with the first uplink subframe, so that the reverse corresponding to the first downlink subframe set is transmitted in the first uplink subframe.
  • the information can be matched to the flexible uplink and downlink configuration in the U-LTE system, and the terminal device can ensure that the ACK/NACK feedback information is correctly transmitted in the U-LTE scenario, and the multiple downlink data is correspondingly carried in the first uplink subframe.
  • the feedback information can improve the resource utilization of the transmission and avoid waste of resources.
  • the processor is further configured to:
  • the processor determines that the second downlink subframe set is associated with the second uplink subframe, the second downlink subframe set belongs to the at least one downlink burst, and the first downlink subframe set is the foregoing And a second subset of the downlink subframes, where the second uplink subframe is used to send the second feedback information corresponding to the downlink data in the second downlink subframe set, where the second uplink subframe is in the first In an uplink burst, the second uplink subframe is after the first uplink subframe;
  • the processor determines a second feedback information codebook, and determines the second feedback information according to the second feedback information codebook;
  • the processor determines a second uplink channel in the second uplink subframe
  • the processor sends the second feedback information to the access network device on the second uplink channel by using the communication module.
  • this step may enhance the transmission opportunity of the feedback information, thereby improving the probability of successful transmission of the feedback information.
  • the processor by using the communications module, to send, to the access network device, the second uplink channel Before the second feedback information, the processor is further configured to:
  • the processor determines, according to the overlapping codebook indication information, a second downlink subframe set associated with the second uplink subframe.
  • the content of the second feedback information transmission may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the overhead of the second feedback information may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the processor is further configured to:
  • the processor determines that the third downlink subframe set is associated with the third uplink subframe, and the third downlink The subframe set belongs to the at least one downlink burst, the third downlink subframe set does not overlap with the first downlink subframe set, and the third uplink subframe is used to send the third downlink subframe
  • the third feedback information corresponding to the downlink data in the set, the uplink burst of the third uplink subframe in the first uplink burst or the third uplink subframe after the first uplink burst
  • the third uplink subframe is after the first uplink subframe;
  • the processor determines a third feedback information codebook, and determines the third feedback information according to the third feedback information codebook;
  • the processor determines a third uplink channel in the third uplink subframe
  • the processor sends the third feedback information to the access network device on the third uplink channel by using the communication module.
  • the feedback information corresponding to the downlink data included in the at least one downlink burst may be fed back in the third uplink subframe, as compared to the at least one downlink, in addition to the feedback in the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the transmission of feedback information corresponding to the downlink data included in the data is fed back in the third uplink subframe, as compared to the at least one downlink, in addition to the feedback in the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the reason is that if the feedback information corresponding to the downlink data in the at least one downlink burst is fed back in the first uplink subframe, if the terminal device does not compete for the unlicensed band resource in the first uplink subframe, then The feedback information corresponding to the downlink data included in the at least one downlink burst cannot be transmitted. In this case, the terminal device determines the third uplink subframe, and can ensure the downlink included in the at least one downlink burst as much as possible. The transmission of partial feedback information corresponding to the data.
  • the processor by using the communications module, to send, to the access network device, the third uplink channel Before the third feedback information, the processor is further configured to:
  • the processor determines, according to the overlapping codebook indication information, a third downlink subframe set associated with the third uplink subframe.
  • the content of the third feedback information transmission may be determined according to the probability that the first feedback information is successfully transmitted, and the overhead of the third uplink subframe for transmitting the third feedback information may be reduced as much as possible.
  • the processor by using the communication module, to the access network on the first uplink channel Before the device sends the first feedback information, the processor is further configured to:
  • the resource overhead for transmitting the first feedback information in the first uplink subframe can be saved, and the data transmission efficiency is ensured.
  • the determining, by the processor, that the first downlink subframe set is associated with the first uplink subframe includes:
  • the processor Determining, by the processor, the first downlink subframe set and the first uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Associated.
  • the terminal device can reliably detect the first downlink subframe set, and then transmit the correct first feedback information in the first uplink subframe.
  • the downlink subframe configuration indication information includes a reciprocal in each downlink burst in the at least one downlink burst In the first and/or second to last downlink subframes.
  • the downlink subframe configuration indication information is used to indicate the downlink subframe Configure the number of downlink subframes in the downlink burst where the indication information is located.
  • the determining, by the processor, that the second downlink subframe set is associated with the second uplink subframe includes:
  • the second downlink subframe set is related to the second uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Union.
  • the terminal device can reliably detect the second downlink subframe set, and then transmit the correct second feedback information in the second uplink subframe.
  • the processor determines that the third downlink subframe set is associated with the third uplink subframe, including:
  • the processor Determining, by the processor, that the third downlink subframe set is related to the third uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Union.
  • the terminal device can reliably detect the third downlink subframe set, and then transmit the correct third feedback information in the third uplink subframe.
  • a fourth aspect provides an access network device, including a processor, a memory, and a communication module, wherein the memory is configured to store a transmission program code of the feedback information, and the processor is configured to invoke the transmission program of the feedback information. Code to do the following:
  • the processor sends downlink data to the terminal device in a downlink subframe in the at least one downlink burst by using the communication module;
  • the communications module Receiving, by the communications module, the first feedback information sent by the terminal device on the first uplink channel in the first uplink subframe, where the first uplink subframe is related to the first downlink subframe set
  • the first downlink subframe set belongs to the at least one downlink burst, and the first feedback information is corresponding to the downlink data in the first downlink subframe set, where the first uplink subframe In the first uplink burst, the first uplink burst is after the at least one downlink burst.
  • the terminal device determines, according to the received first downlink subframe set, the first uplink subframe that is associated with the first uplink subframe, so that the feedback information corresponding to the first downlink subframe set is transmitted in the first uplink subframe. It can meet the flexible uplink and downlink configuration in the U-LTE system, and can ensure that the terminal device sends the ACK/NACK feedback information reasonably in the U-LTE scenario, and carries the feedback corresponding to multiple downlink data in the first uplink subframe. Information can improve the utilization of resources for transmission and avoid waste of resources.
  • the processor is further configured to:
  • the second feedback information sent by the terminal device on a second uplink channel in the second uplink subframe where the second uplink subframe is associated with the second downlink subframe set, where the second The downlink subframe set belongs to the at least one downlink burst, the first downlink subframe set is a subset of the second downlink subframe set, and the second feedback information and the second downlink subframe set Corresponding to the downlink data, the second uplink subframe is in the first uplink burst, and the second uplink subframe is behind the first uplink subframe.
  • this step can enhance the transmission opportunity of the feedback information, thereby improving the probability of successful transmission of the feedback information.
  • the processor by the communications module, receives the terminal device on a second uplink channel in a second uplink subframe Before sending the second feedback information, the processor is further configured to:
  • the content of the second feedback information transmission may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the overhead of the second feedback information may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the processor is further configured to:
  • the third uplink subframe is in the first uplink burst or the third uplink subframe is in an uplink burst after the first uplink burst, and the third uplink is The subframe is after the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the at least one downlink burst may be fed back in the third uplink subframe, as compared to the at least one downlink, in addition to the feedback in the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the transmission of feedback information corresponding to the downlink data included in the data is fed back in the third uplink subframe, as compared to the at least one downlink, in addition to the feedback in the first uplink subframe.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the reason is that if the feedback information corresponding to the downlink data in the at least one downlink burst is fed back in the first uplink subframe, if the terminal device does not compete for the unlicensed band resource in the first uplink subframe, then The feedback information corresponding to the downlink data included in the at least one downlink burst cannot be transmitted. In this case, the terminal device determines the third uplink subframe, and can ensure the downlink included in the at least one downlink burst as much as possible. The transmission of partial feedback information corresponding to the data.
  • the processor by the communications module, receives the terminal device on a third uplink channel in a third uplink subframe Before sending the third feedback information, the processor is further configured to:
  • the content of the third feedback information transmission may be determined according to the probability that the first feedback information is successfully transmitted, and the overhead of the third uplink subframe for transmitting the third feedback information may be reduced as much as possible.
  • the processor is received by the communications module on a first uplink channel in a first uplink subframe Before the first feedback information sent by the terminal device, the processor is further configured to:
  • the resource overhead for transmitting the first feedback information in the first uplink subframe can be saved, and the data transmission efficiency is ensured.
  • the processor is further configured to:
  • the terminal device Transmitting, by the communication module, downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration indication information is used by the The terminal device determines that the first downlink subframe set is associated with the first uplink subframe according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information.
  • the terminal device can reliably detect the first downlink subframe set, and then transmit the correct first feedback information in the first uplink subframe.
  • the downlink subframe configuration indication information includes a reciprocal in each downlink burst in the at least one downlink burst In the first and/or second to last downlink subframes.
  • the downlink subframe configuration indication information is used to indicate the downlink subframe Configure the number of downlink subframes in the downlink burst where the indication information is located.
  • the processor is further configured to:
  • the terminal device Transmitting, by the communication module, downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration indication information is used by the The terminal device determines that the second downlink subframe set is associated with the second uplink subframe according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information.
  • the terminal device can reliably detect the second downlink subframe set, and then transmit the correct second feedback information in the second uplink subframe.
  • the processor is further configured to:
  • the terminal device Transmitting, by the communication module, downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration indication information is used by the The terminal device determines that the third downlink subframe set is associated with the third uplink subframe according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information.
  • the terminal device can reliably detect the second downlink subframe set, and then transmit the correct third feedback information in the third uplink subframe.
  • a terminal device comprising a module or unit for performing the transmission method of the feedback information described in the above first aspect or any one of the first aspects.
  • an access network device comprising a module or unit for performing the transmission method of the feedback information described in any of the foregoing second aspect or the second aspect.
  • a communication system comprising the terminal device of the third aspect or the fifth aspect, and the access network device of the fourth aspect or the sixth aspect.
  • An eighth aspect a computer readable storage medium storing program code for implementing a transmission method of feedback information described in any one of the first aspect or the first aspect, the program The code contains an execution instruction of the transmission method that runs the above feedback information.
  • the ninth aspect provides a computer readable storage medium, where the readable storage medium stores a transmission method for implementing feedback information described in any one of the second aspect or the second aspect Program code containing an execution instruction of a transfer method that runs the above feedback information.
  • 1A is a schematic diagram of different TDD uplink and downlink configurations in an LTE system
  • 1B is a schematic diagram showing a timing relationship between a PDSCH and its corresponding ACK/NACK in an LTE TDD system
  • FIG. 2 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for transmitting feedback information according to an embodiment of the present invention.
  • 4A is a schematic structural diagram of a downlink burst according to an embodiment of the present invention.
  • 4B is a schematic structural diagram of another downlink burst according to an embodiment of the present invention.
  • 4C is a schematic structural diagram of an uplink burst according to an embodiment of the present invention.
  • 4D is a schematic structural diagram of another uplink burst according to an embodiment of the present invention.
  • 4E is a schematic structural diagram of another uplink burst according to an embodiment of the present invention.
  • 4F is a schematic structural diagram of another uplink burst according to an embodiment of the present invention.
  • 4G is a schematic structural diagram of a first uplink burst according to an embodiment of the present invention.
  • 4H is a schematic structural diagram of another first uplink burst according to an embodiment of the present invention.
  • FIG. 4I is a schematic diagram of a relationship between a first downlink subframe set and a second downlink subframe set according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another relationship between a first downlink subframe set and a second downlink subframe set according to an embodiment of the present disclosure
  • FIG. 4K is a schematic diagram of another relationship between a first downlink subframe set and a second downlink subframe set according to an embodiment of the present disclosure
  • FIG. 4L is a schematic diagram of another relationship between a first downlink subframe set and a second downlink subframe set according to an embodiment of the present disclosure
  • 4M is a schematic diagram of a positional relationship between a first uplink subframe and a second uplink subframe according to an embodiment of the present invention
  • 4N is another location of a first uplink subframe and a second uplink subframe according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a relationship between a third downlink subframe set and a third uplink subframe according to an embodiment of the present disclosure
  • FIG. 4P is a schematic diagram of a relationship between a downlink subframe set and an uplink subframe according to an embodiment of the present disclosure
  • FIG. 4Q is a schematic diagram of another association relationship between a downlink subframe set and an uplink subframe according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another access network device according to an embodiment of the present invention.
  • FIG. 2 shows a communication system according to an embodiment of the present invention, in which an access network device and a terminal device in the embodiment of the present invention can work on an unlicensed spectrum.
  • the access network device and the terminal device communicate with each other through some air interface technology.
  • the air interface technology may include: existing 2G (such as Global System for Mobile Communications (GSM)), 3G (such as Universal Mobile Telecommunications System (UMTS), wideband code) Multipleband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), 4G (such as FDD LTE, TDD LTE), and future The upcoming 4.5G, 5G system, etc.
  • GSM Global System for Mobile Communications
  • 3G such as Universal Mobile Telecommunications System (UMTS), wideband code) Multipleband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA
  • 4G such as FDD LTE, TDD LTE
  • the terminal device may also include a relay (English: Relay), and the base station may perform data communication as a terminal device.
  • a user equipment English: User Equipment, UE
  • the terminal device may also be referred to as a mobile station, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, Wireless communication device, user agent or user device, etc.
  • the terminal device can be a site in a Wireless Local Area Networks (WLAN) (English: Staion, ST), which can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, or a wireless device.
  • WLAN Wireless Local Area Networks
  • ST Wireless Local Area Networks
  • WLAN Wireless Local Area Networks
  • ST Wireless Local Area Networks
  • WLAN Wireless Local Area Networks
  • PDA Personal Digital Assistant
  • Handheld devices with wireless communication capabilities computing devices or other processing devices connected to wireless modems
  • in-vehicle devices wearable devices and mobile stations in future 5G networks or terminal devices in the future evolution of the Public Land Mobile Network (PLMN) network.
  • PLMN Public Land Mobile Network
  • the access network device may be a device for communicating with the terminal device, and the access network device may be an access point in an WLAN (English: Access Point, AP), a base station in GSM or CDMA (English: Base Transceiver Station, BTS), which may also be a base station in WCDMA (English: NodeB, NB), or an evolved base station (English: evolved Node B, eNB) in LTE, or a relay station or an access point, or an in-vehicle device, wearable
  • the device and the access network device in the future 5G network or the access network device in the future evolved PLMN network.
  • the cell mentioned in the following embodiments may be a cell corresponding to the base station, and the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (English: Small cell), where the small cell may include: a city cell (English: Metro) Cell), micro cell (English: Micro cell), pico cell (English: Pico cell), femto cell (English: Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, which are suitable for providing high Rate data transfer service.
  • the invention is applied to a wireless communication system, in particular to an LTE (Licensed-Assisted Access LTE, LAA-LTE) system for licensed frequency band assisted access.
  • LTE Licensed-Assisted Access LTE
  • LAA-LTE Licensed-Assisted Access LTE
  • the LAA-LTE system refers to an LTE system in which a licensed frequency band and an unlicensed spectrum are used together by carrier aggregation (English: Carrier Aggregation, CA) or a non-CA (for example, Dual Connectivity (DC)).
  • the scenario of the mainstream deployment is to use the licensed band and the unlicensed spectrum through the CA.
  • the carrier included in the licensed band (also called the licensed band) or the cell working in the licensed band is used as the primary cell, and the unlicensed spectrum is also used.
  • a carrier that may be referred to as an unlicensed spectrum or a cell that operates on an unlicensed spectrum is used as a secondary cell, where the primary cell and the secondary cell may be deployed together or non-co-located, and there is an ideal back between the two cells. Pass the path.
  • the present invention is not limited to the scenario of the above-mentioned CA.
  • Other deployment scenarios include scenarios where there is no ideal backhaul path between two cells (the primary cell and the secondary cell), such as a large backhaul delay, resulting in a situation between two cells. Unable to coordinate information quickly. For example, a DC scene.
  • the concept of the carrier and the serving cell in the LTE system is equivalent, for example, the terminal device accessing one carrier and accessing one serving cell are equivalent.
  • the concept of the serving cell is unified.
  • FIG. 3 is a schematic flowchart of a method for transmitting feedback information according to an embodiment of the present invention, where the method includes but is not limited to the following steps.
  • the terminal device receives downlink data sent by the access network device in a downlink subframe in the at least one downlink burst.
  • a downlink burst (English: Downlink Burst, DL Burst) refers to multiple downlink subframes that are continuously occupied in time.
  • a base station for example, an eNB
  • a cell under the base station (English: Cell) does not need to perform data transmission by using the unlicensed spectrum resource through a contention mechanism (for example, LBT) after preempting the unlicensed spectrum resource.
  • the maximum length of a downlink burst is not greater than the maximum time that the base station (or the cell) can continuously transmit through the contention mechanism on the unlicensed spectrum resource, and the maximum time may also be referred to as a maximum channel occupation time. :Maximum Channel Occupied Time, MCOT).
  • MCOT can be related to geographical regulations. For example, in Japan, MCOT can be equal to 4ms. In Europe, MCOT can be equal to 8ms, or 10ms, or 13ms. MCOT can also be related to the competition mechanism used by listening devices (such as base stations and user equipment). In general, the shorter the listening time, the shorter the MCOT; the length of the MCOT can also be related to the service level of the data transmission. For example, taking the Internet telephony service as an example, if the service has a higher priority, the general MCOT can be 2 ms. Therefore, after the base station competes for the unlicensed spectrum resource, the base station can occupy 2 milliseconds continuously; for example, the data transmission service has a lower priority, and generally can occupy 8 or 10 milliseconds continuously.
  • the contention mechanism may not include: after the base station or the cell preempts the unlicensed spectrum resource, during the time when the data is actually sent on the unlicensed spectrum resource or within the MCOT, It is necessary to evaluate whether the unlicensed spectrum resource is available through a competition mechanism.
  • the DL Burst is: starting from the second subframe, the base station does not need to evaluate whether the unlicensed spectrum resource is available through a contention mechanism.
  • the DL burst can occupy 4 downlink subframes in succession, wherein the length of the last downlink subframe used for downlink data transmission is less than the length of one downlink subframe.
  • the competition mechanism may further include: after the base station or the cell is preempting the unlicensed spectrum resource, during the time when the data is actually sent on the unlicensed spectrum resource or within the MCOT, the system may not need to be considered. Coexistence and competition mechanism, but competition mechanism can be considered in consideration of coexistence with the same system.
  • the competition mechanism used for coexistence with the system may include the time at which data is transmitted or MCOT after preempting unlicensed spectrum resources.
  • the base station or cell may stop data transmission (or may stop transmitting data), within this particular time unit, the base station or The cell may perform channel sounding to re-evaluate whether the unlicensed spectrum resource is available, or may continue to transmit data within the time of transmitting data or within the MCOT within a specific time unit without channel sensing, as shown in FIG. 4B. .
  • the base station can stop transmitting data for a period of time (corresponding to the idle time unit in FIG. 4B) at any time position from the start to the end of the DL Burst, so that other devices in the same system can be connected to the base station.
  • Resource multiplexing is implemented on the unlicensed spectrum resource.
  • the non-LTE system can be regarded as a different system, such as a WLAN system, or a system using WiFi technology; the LTE system can be regarded as the same system, whether it is an LTE system belonging to the same operator or a different operator.
  • the LTE system can be regarded as the same system.
  • an uplink burst (English: Uplink Burst, UL burst) refers to multiple uplink subframes that are continuously occupied in time.
  • the multiple uplink subframes may include a time zone for other terminal devices to perform CCA (as shown in FIG. 4C, the idle time unit may be used for at least other terminal devices for CCA). It is also possible not to include a time zone for CCA for other terminal devices (as shown in FIG. 4D).
  • the uplink burst may include, for example, after the terminal device preempts the unlicensed spectrum resource, and does not need to use the unlicensed spectrum resource to perform data transmission through a contention mechanism (eg, LBT).
  • the length of the uplink burst is not greater than the MCOT of the terminal device on the unlicensed spectrum resource.
  • the length of the uplink burst is not limited here.
  • the uplink burst may include two phases.
  • the plurality of uplink subframes that are consecutively occupied in time between the downlink bursts of the neighbors; or the uplink bursts may further include: the time slots consecutively included in the MCOT after the base station competes for the unlicensed spectrum resources Multiple uplink subframes are occupied, for example, as shown in FIG. 4E; or, after the base station preempts the unlicensed spectrum resources, the base station does not need to use the unlicensed spectrum to perform data transmission through the contention mechanism or in a downlink.
  • a burst of time based on a specific time delay (eg, based on a 4 ms time delay)
  • data transmission by the terminal device from the first uplink subframe that can be scheduled to the last uplink subframe that can be scheduled,
  • the time range from the first uplink subframe to the last uplink subframe (4 subframes in FIG. 4F) is the UL. burst corresponding to the time range.
  • the uplink and downlink subframe configuration on the unlicensed spectrum may be flexible, which may be understood as: for example, a burst transmission in the U-LTE system.
  • the N consecutive downlink subframes may be included, followed by a special subframe, where the length of time for downlink information or downlink data transmission in the special subframe is less than the length of time of one subframe.
  • the length of a subframe is 1 ms
  • the length of time for downlink information or downlink data transmission in the special subframe is less than 1 ms; or there is no special subframe and only one guard interval (English: Guard Period, GP)
  • M uplink subframes, N and M are flexibly selected by the base station for each burst transmission.
  • a burst transmission can also be called a transmission opportunity (English: Transmission Opportunity, TxOP).
  • the time length of the subframe is 1 millisecond.
  • One subframe includes 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols for the Normal Cyclic Prefix (NCP) case.
  • OFDM Orthogonal Frequency Division Multiplexing
  • ECP Extended Cyclic Prefix
  • the situation includes 12 OFDM symbols. It is of course not excluded that the LTE system or other wireless systems that continue to evolve in the future adopt shorter subframes, such as the length of time of the future subframe is equivalent to the length of time of the current one OFDM symbol.
  • TTI Transmission Time Interval
  • the downlink subframe is a subframe including data or information sent by the access network device to the terminal device, and the duration of the downlink data transmission or the downlink information transmission in one downlink subframe may be equal to one downlink subframe.
  • the length of time may be less than the length of time of one downlink subframe;
  • the uplink subframe is a subframe including data or information sent by the terminal device to the access network device, and is used for uplink data transmission or uplink information transmission in one uplink subframe.
  • the length of time may be equal to the length of one uplink subframe, or may be less than the length of one uplink subframe.
  • the receiving, by the terminal device, the downlink data sent by the access network device in the downlink subframe in the at least one downlink burst may include the following steps:
  • Step 1 The terminal device detects the downlink control channel.
  • the terminal device may detect the downlink control channel in each downlink subframe of the at least one downlink burst, or may detect the downlink control channel in some downlink subframes of the at least one downlink burst, or may Each downlink subframe in the first downlink subframe set detects a downlink control channel, and may also detect a downlink control channel in a part of downlink subframes in the first downlink subframe set, where the first downlink is The subframe set belongs to the at least one downlink burst, and the first downlink subframe set includes at least one downlink subframe of the at least one downlink burst.
  • the downlink control channel may include at least a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH).
  • Step 2 The terminal device receives downlink data in the downlink data channel scheduled by the downlink control channel, and the downlink data channel may be referred to as a PDSCH in the LTE system, and the downlink data channel carries downlink data.
  • the downlink control channel and its scheduled downlink data channel are generally in the same downlink subframe, and are of course not excluded in different downlink subframes.
  • the terminal device determines that the first downlink subframe set is associated with the first uplink subframe.
  • the terminal device after receiving the downlink data in the downlink data channel, the terminal device needs to feed back the ACK or the NACK corresponding to the downlink data, so that the downlink data transmission efficiency can be ensured, where the first uplink subframe is used for the sending
  • the first downlink subframe set includes one downlink subframe in the at least one downlink burst, and may also be multiple downlink subframes in the at least one downlink burst, which is not specifically limited in this embodiment of the present invention.
  • the downlink data in each downlink data channel corresponds to one ACK or NACK, and it is of course not excluded that multiple downlink data carried in multiple downlink data channels respectively correspond to one ACK or NACK.
  • the present invention is described by taking an example in which downlink data in each downlink data channel corresponds to one ACK or NACK, respectively.
  • An upstream burst must be after at least one downstream burst.
  • an uplink burst including the first uplink subframe may be followed by a downlink burst; and when the downlink burst number is greater than 1, an uplink burst including the first uplink subframe is included. The hair can follow the last downturn.
  • the uplink burst including the first uplink subframe and the at least one downlink burst to which the first downlink subframe set belongs may further include other downlink bursts and/or uplink bursts, as shown in FIG. 4H. Shown. These cases are not specifically limited in the present invention.
  • the meaning of the association may be that the feedback information corresponding to the downlink data in some or all of the downlink subframes in the first downlink subframe set needs to be sent in the first uplink subframe.
  • the meaning of the association may be that the feedback information corresponding to the downlink data of all the downlink subframes included in the first downlink subframe set needs to be sent in the first uplink subframe.
  • the meaning of the association is also understood to be that the feedback information corresponding to some or all of the downlink subframes in the first downlink subframe set needs to be sent in the first uplink subframe.
  • the meaning of the association may be understood as that the feedback information corresponding to all the downlink subframes in the first downlink subframe set needs to be sent in the first uplink subframe.
  • the downlink subframe associated with the uplink subframe 2 is the downlink subframes 4, 5, 6, and 8 of the N carriers configured for the terminal device.
  • the downlink subframes 4, 5, 6, and 8 are associated with the uplink subframe 2, and the feedback information corresponding to the downlink data in the downlink subframes 4, 5, 6, and 8 needs to be transmitted in the uplink subframe 2.
  • N is 1, and for a multi-carrier, such as CA mode, N depends on the number of carriers configured for the terminal device, for example, N may be 5.
  • the feedback information corresponding to the downlink subframe may be represented by NACK or discontinuous transmission (DTX).
  • the association relationship may be pre-configured, for example, by a preset HARQ timing relationship, where the HARQ timing relationship may be: a subframe in which downlink data is located and a subframe in which feedback information corresponding to the downlink data is sent. The interval is not less than a certain threshold.
  • the threshold is 4, that is, when the UE receives the downlink data in the subframe n, the UE may transmit the feedback information of the downlink data in the subframe n+4 at the earliest, other thresholds.
  • the value is not excluded.
  • the association relationship may be determined by the access network device and then notified to the UE, for example, by public signaling or UE-specific signaling, which is not performed in the embodiment of the present invention. Specifically limited.
  • the terminal device may determine the first uplink subframe by using a signaling indication or a pre-configuration manner, and then determine the first downlink subframe set according to the preset HARQ timing relationship.
  • the terminal device may determine the first downlink subframe set by means of signaling indication or pre-configuration, and then determine the first uplink subframe according to the preset HARQ timing relationship.
  • the preset HARQ timing relationship here can also be regarded as a form of association. More generally, in this step, the terminal device may determine, by using the determined first uplink subframe and the association relationship, the first downlink subframe set, or the terminal device may pass the determined first downlink subframe set. And the association relationship, determining the first uplink subframe.
  • the first uplink subframe is the first uplink subframe of the first uplink burst following the at least one downlink burst; for example, if the terminal device is in the downlink subframe in the first downlink subframe set
  • the subframe in which the uplink data corresponding to the uplink scheduling indication information is located may also be the first uplink subframe.
  • the terminal device receives the uplink scheduling indication information in one downlink subframe of the first downlink subframe set, and the uplink scheduling indication information indicates that the terminal device transmits uplink data in at least two uplink subframes
  • the first one of the at least two uplink subframes may be the first uplink subframe, and of course, the other uplink subframes in the at least two uplink subframes may also be the first uplink subframe; for example, the terminal device If the scheduled downlink data is received in multiple downlink subframes in a downlink burst, the downlink subframe in which the last scheduled downlink data is located is determined according to the HARQ timing relationship, and the determined uplink subframe is the first uplink subframe.
  • the terminal device receives the scheduled downlink data in multiple downlink subframes in the first downlink subframe set, and the downlink subframe in which the last scheduled downlink data is located is determined according to the HARQ timing relationship.
  • the uplink subframe is the first uplink subframe
  • the last downlink subframe included in the first downlink subframe set is determined by the HARQ timing relationship
  • the determined uplink subframe is the first uplink subframe.
  • the terminal device may determine the first uplink subframe according to the downlink subframe or the HARQ timing relationship of the downlink scheduling indication information (for example, DL grant) included in the downlink burst or the first downlink subframe set; for example: The terminal device may determine the first uplink subframe according to the downlink subframe and the HARQ timing relationship of the downlink scheduling indication information (for example, UL grant) included in the downlink burst or the first downlink subframe set.
  • the DL grant and/or UL grant can be carried in the downlink control information (Downlink Control Information, DCI). These cases are not specifically limited in the present invention.
  • the terminal device determines the first uplink subframe according to the uplink scheduling indication information, and then determines the first downlink subframe set corresponding to the first uplink subframe according to the HARQ timing relationship.
  • An optional manner is: if the terminal device receives the UL grant information in the subframe n, the terminal device may determine that the uplink data channel scheduled by the UL grant information is included in the subframe n+4, and the terminal device may be in the The uplink data channel transmits uplink data.
  • the terminal device may determine the subframe n+4 as the first uplink subframe, and then delay the time between the subframe n+4 and the subframe n+4 by a delay of not less than 4 ms according to the HARQ timing relationship.
  • the included downlink subframes are all used as downlink subframes included in the first downlink subframe set. Further, only the downlink subframes in the downlink burst in which the subframe n is located and the uplink subframe n+4 satisfy the HARQ timing relationship may be used as the downlink subframe in the first downlink subframe set. Alternatively, in addition to the downlink subframe in which the downlink subframe in which the subframe n is located and the uplink subframe n+4 satisfy the HARQ timing relationship, the downlink subframe may be used as the downlink subframe in the first downlink subframe set.
  • the downlink subframe in which the downlink data of the HARQ-ACK is not fed back in the downlink burst before the downlink burst where the frame n is located also serves as the downlink subframe in the first downlink subframe set.
  • the HARQ-ACK includes an ACK or a NACK.
  • the terminal device may be any one or more of the at least one downlink burst.
  • the terminal device may be the last in any one or more downlink bursts in the at least one downlink burst Receiving the signaling in the second and/or the last downlink subframe; or the terminal device may be in any one or more downlink subframes of the last downlink burst in the at least one downlink burst Receiving the signaling; or the terminal device may receive the letter in a penultimate and/or countdown first downlink subframe of a last one of the at least one downlink burst make.
  • the signaling may be common control signaling.
  • the common control signaling may also be used to indicate an end time of the downlink burst.
  • the common control signaling may indicate that the The end of the downlink burst, including common control signaling.
  • the terminal device may also be used to determine the following second uplink subframe and/or second downlink subframe set; or may be applied to the terminal device to determine the following third uplink. Subframe and/or third downlink subframe set.
  • the terminal device determines a first feedback information codebook, and determines the first feedback information according to the first feedback information codebook.
  • the first feedback information may be represented by ACK or NACK, and may also be represented by DTX.
  • the first feedback information corresponding to the downlink data in the first downlink subframe set may include the feedback information corresponding to all the downlink subframes in the first downlink subframe set, for the terminal device. For example, if only a part of the downlink subframes in the first downlink subframe set includes the downlink data scheduled for the terminal device, for example, the PDSCH is scheduled by the (E)PDCCH, the corresponding feedback information is sent to the unscheduled downlink subframe.
  • the NACK can be represented by the ACK or the NACK for the downlink subframe that includes the downlink data scheduled for the terminal device in the first downlink subframe set, or the first downlink.
  • the first feedback information corresponding to the downlink data in the subframe set may include, by the terminal device, first feedback information corresponding to all scheduled downlink subframes in the first downlink subframe set.
  • the codebook multiplexing mode included in the physical uplink control channel (PUCCH) in the single-carrier or CA mode is taken as an example to describe the meaning of the first feedback information codebook in the embodiment of the present invention.
  • the PUCCH transmission mode in the single carrier or CA mode includes various modes, such as a bonding mode, a channel selection mode, and a codebook multiplexing mode. Among them, the codebook multiplexing mode is more commonly used.
  • the codebook multiplexing mode is described by taking the TDD uplink and downlink configuration 2 of the mainstream deployment in the current network as an example. Referring to FIG. 1B, the uplink subframe 2 of one carrier can support the feedback of 4 ACK or NACK bits (here, the uplink subframe is assumed).
  • the downlink data scheduled by the associated downlink subframe corresponds to one transport block (Transmission Block, TB), or corresponds to the transmission of one downlink codeword.
  • Transport Block TB
  • the CA of the TDD uplink and downlink configuration 2 of 5 carriers can be Supporting the feedback of 20 ACK or NACK bits, in this case, the downlink subframe set associated with the uplink subframe 2 is the downlink subframes 4, 5, 6, and 8 of the 5 carriers configured to the UE.
  • the uplink subframe 2 The codebook generation of the ACK or NACK that needs to be fed back is determined based on the downlink subframe set associated with the uplink subframe 2, and the codebook of the ACK or NACK is the original bit of the ACK or NACK before the coding in a certain order.
  • the bit stream that is arranged, where the original bit of the ACK or NACK is arranged in a certain order, can be seen as the feedback information codebook in the embodiment of the present invention.
  • the codebook size corresponding to the feedback information ACK or NACK is 20 bits, and the specific ordering may be the order of the carrier after the first subframe, that is, the ACK corresponding to the subframes 4, 5, 6, and 8 of the carrier 1 is first arranged. Or the NACK bit, and then align the ACK or NACK bits corresponding to the subframes 4, 5, 6, and 8 of the carrier 2, and continue to arrange the ACK or NACK bits corresponding to the subframe of the remaining carrier in the above manner. Specifically, for the unscheduled downlink subframe, or the ACK or NACK bit position corresponding to the downlink subframe in which the UE does not receive the downlink data, padding NACK information is required.
  • the first feedback information may be determined.
  • the terminal device needs to perform channel coding according to the codebook, where the type of the channel coding may be a linear block coding, a convolutional code, or a Turbo code, etc., which is not limited by the present invention.
  • the type of channel coding If the current block coding, such as the Reed Muller code, is used, it is generally not necessary to add a Cyclic Redundancy Check (CRC) before the coding, and if a convolutional code or a Turbo code is used, Then, the terminal device may add a CRC bit to the codebook of the feedback information before the encoding.
  • the terminal device determines the first feedback information according to the first feedback information codebook, and may include data modulation and data mapping, in addition to the channel coding.
  • the terminal device determines a first uplink channel in the first uplink subframe.
  • the first uplink channel may be a PUCCH or a physical uplink shared channel (PUSCH).
  • the terminal device Before transmitting the first feedback information, the terminal device further includes determining, by using the first uplink subframe, a resource for sending the first feedback information, for example, the terminal device receives the high layer signaling sent by the access network device, for example, The radio resource control (RRC) signaling is used to obtain a PUCCH resource set configured by the access network device for the terminal device from the RRC signaling, where the PUCCH resource set includes at least one PUCCH resource.
  • the PUCCH in the PUCCH resource set may have the same format, and may also include at least two PUCCH formats.
  • the terminal device receives the resource indication information sent by the access network device. Finally, the physical resource for carrying the feedback information is determined from the PUCCH resource set according to the resource indication information. It should be noted that the above is only a resource indication. Other specific methods are not limited.
  • step S303 and step S304 is not limited.
  • the terminal device may first obtain the first feedback information, determine the first uplink channel, or determine the first uplink channel first, and then obtain the first feedback information.
  • the terminal device sends the first feedback information to the access network device on the first uplink channel.
  • the method further includes:
  • the terminal device determines that the second downlink subframe set is associated with the second uplink subframe, the second downlink subframe set belongs to the at least one downlink burst, and the first downlink subframe set is the And a second subset of the downlink subframes, where the second uplink subframe is used to send the second feedback information corresponding to the downlink data in the second downlink subframe set, where the second uplink subframe is in the first In an uplink burst, the second uplink subframe is after the first uplink subframe;
  • the terminal device determines a second uplink channel in the second uplink subframe
  • the terminal device sends the second feedback information to the access network device on the second uplink channel.
  • the method for the terminal device to determine the second downlink subframe set, the second uplink subframe, and the association relationship may be determined in any manner as described above, and is not specifically limited herein.
  • the relationship between the first downlink subframe set, the second downlink subframe set, and the relationship between the first uplink subframe and the second uplink subframe may be as shown in FIG. 4I- 4L is shown.
  • the subset includes a corpus and a true subset.
  • the first downlink subframe set is the same as the second downlink subframe set, that is, the subset is equivalent to the complete set at this time; as shown in FIG. 4K and FIG. 4L, A downlink subframe set is a true subset of the second downlink subframe set.
  • the first downlink subframe set is the same as the second downlink subframe set, and the second uplink subframe may be in the same uplink burst as the first uplink subframe and after the first uplink subframe. Any one of the uplink subframes. Correspondingly, there may be multiple uplink subframes associated with the first downlink subframe set. The advantage of this is that even if the terminal device does not compete for the unlicensed channel use machine in the first uplink subframe In addition, the second uplink subframe may continue to determine whether the unlicensed spectrum resource can be contending, and if it can compete, the feedback information associated with the first downlink subframe set may be continuously fed back.
  • the transmission of the feedback information associated with the first downlink subframe set is guaranteed, and the terminal device may also be in the
  • the second feedback information sent by the two uplink subframes includes the first feedback information.
  • the technology A is described as follows: the terminal device determines that at least two uplink subframes are used for transmitting feedback information for downlink data, and that the first uplink subframe of the at least two uplink subframes is used for transmitting the downlink subframe label is 1/ The feedback information corresponding to the downlink sub-frame of the 2/3, the other one of the at least two uplink sub-frames is used for transmitting the feedback information corresponding to the downlink sub-frame with the downlink sub-frame number 4, if the terminal device is in the If an uplink subframe does not compete for the unlicensed spectrum resource, the terminal device cannot transmit the feedback information corresponding to the downlink subframe with the downlink subframe label 1/2/3 in the first uplink subframe.
  • the terminal device if the terminal device contends to the unlicensed spectrum resource in another uplink subframe, the terminal device transmits the downlink subframe label in the other uplink subframe as 1/2/3/ The feedback information corresponding to the downlink subframe of 4; on the other hand, if the terminal device contends to the unlicensed spectrum resource in the first uplink subframe, the terminal device still transmits the downlink subframe in the first uplink subframe Reference numeral 1/2/3 feedback information corresponding to the downlink subframe, and uplink subframe in a further transmit only the downlink subframes numbered downlink feedback information corresponding to the sub-frame 4.
  • the core of the technology A is: whether the feedback information of the uplink subframes except the first uplink subframe in the determined at least two uplink subframes and the first uplink subframe compete with the unlicensed spectrum.
  • the access network device needs to first determine whether the terminal device competes for the unlicensed spectrum resource in the first uplink subframe, and then determines the feedback of the downlink subframe corresponding to the feedback information transmitted by the terminal device in other uplink subframes. information.
  • the access network device can determine whether the terminal device competes for unlicensed spectrum resources in the first uplink subframe by using discontinuous transmission (DTX) detection, for example, an access network device.
  • DTX discontinuous transmission
  • the uplink demodulation reference signal may be detected by detecting whether the first uplink subframe includes (English: Demodulation Reference Signal, DMRS), determines whether the terminal device competes for unlicensed spectrum resources in the first uplink subframe. However, considering the interference caused by the hidden node (English: Hidden Node) on the unlicensed spectrum, the access network device determines whether the terminal device competes in the first uplink subframe by detecting the presence or absence of the DMRS. The detection performance of licensed spectrum resources is not reliable. For example, the terminal device competes for the unlicensed spectrum resource in the first uplink subframe, and transmits the feedback information corresponding to the downlink subframe with the downlink subframe label 1/2/3, and other information after the first uplink subframe.
  • DMRS Demodulation Reference Signal
  • the access network device In the uplink subframe, only the feedback information corresponding to the downlink subframe with the subframe number 4 is transmitted. However, due to the interference introduced by the hidden node, the access network device does not detect the DMRS included in the first uplink subframe, so that the access network device mistakenly believes that the terminal device will be after the first uplink subframe.
  • the other uplink subframes are fed back the feedback information corresponding to the downlink subframe labeled 1/2/3/4, and the access network device and the terminal device are the other uplink subframes after the first uplink subframe.
  • the feedback information of the bearer is judged to be in error, which leads to data demodulation failure. It should be noted that the reason for the unreliable detection performance of the access network device is not excluded here.
  • the access network device may also pass other than the blind detection of the presence or absence of the DMRS.
  • the detection mode determines that the terminal device competes for the unlicensed spectrum resource in the first uplink subframe.
  • whether the terminal device competes for the unlicensed spectrum resource in the first uplink subframe (which can be understood as the first uplink subframe in the prior art A), the second uplink subframe ( It can be understood that the feedback information transmitted in the “other uplink subframes in the prior art A” includes the feedback information of the first uplink subframe transmission, so that the access network device and the terminal device can be guaranteed to be in the second uplink subframe.
  • the feedback information transmitted has a consistent understanding, which ensures reliable transmission of feedback information.
  • the first uplink subframe only feeds back feedback information associated with a part of the downlink subframes in the first downlink subframe set, for example, some downlink subframes may be included.
  • the second uplink subframe may also feed back only the feedback information associated with a part of the downlink subframes in the second downlink subframe set.
  • the feedback information included in the first uplink subframe may be a downlink subframe with a subframe number of 2/3/4/6
  • the feedback information included in the first uplink subframe It may be a downlink subframe for which the subframe number is 1/2/3/4/5/6.
  • the first downlink subframe set is a true subset of the second downlink subframe set.
  • the second uplink subframe may be in the same uplink burst as the first uplink subframe and after the first uplink subframe Imagine an uplink subframe.
  • FIG. 4L The difference between FIG. 4L and FIG. 4K is that the first uplink subframe only feeds back the feedback information associated with a part of the downlink subframes in the first downlink subframe set. Similarly, the second uplink subframe may only feed back the second downlink. Feedback information associated with a portion of the downlink subframes in the subframe set.
  • the first uplink subframe is associated with a part of the first downlink subframe set or all downlink subframes
  • the second uplink subframe and the second downlink subframe set are Some or all of the downlink subframes are associated, and may be independent configurations or the same configuration.
  • the first uplink subframe is associated with all downlink subframes in the first downlink subframe set, that is, whether all downlink subframes included in the first downlink subframe set include scheduling
  • the PDSCH of the terminal device may include the HARQ-ACK corresponding to all the downlink subframes in the first downlink subframe set.
  • the second uplink subframe is associated with all downlink subframes in the second downlink subframe set, that is, whether all downlink subframes included in the second downlink subframe set include scheduling to the terminal device
  • the second uplink subframe of the second downlink subframe may include the HARQ-ACK corresponding to all the downlink subframes in the second downlink subframe set.
  • the second uplink subframe is the last uplink subframe in the uplink burst where the first uplink subframe is located.
  • the advantage of this is that more transmission opportunities can be provided for the transmission of the second feedback information.
  • the terminal device even if the uplink subframe from the first uplink subframe includes no competition for unlicensed spectrum resources from the first uplink subframe to the second last uplink subframe, the terminal device can still It is determined whether the unlicensed spectrum resource is usable before the last uplink subframe in the uplink burst.
  • the second uplink subframe is the second to last uplink subframe in the uplink burst where the first uplink subframe is located.
  • the advantage of this is that in addition to providing more transmission opportunities for the transmission of the second feedback information, the transmission of the second feedback information can also be guaranteed.
  • the uplink burst in which the first uplink subframe is located may be followed by a downlink burst, as shown in FIG. 4M.
  • the length of time that the last uplink subframe included in the uplink subframe in which the first uplink subframe is located is used for uplink data or information transmission may be less than the length of one uplink subframe, so that it may be a subsequent downlink burst.
  • the second uplink subframe may be the second-to-last uplink subframe in the uplink burst where the first uplink subframe is located, in order to ensure the transmission of the second feedback information.
  • the second uplink subframe is an uplink subframe that is other than the first uplink subframe and is used for uplink data or information transmission, and the length of time is not less than a specific threshold.
  • the time length for the uplink information transmission in the uplink subframe is 14 OFDM symbols, and in this example, the specific threshold may be set to 14 OFDM symbols, that is, the second uplink.
  • the length of time that the frame is used for uplink information transmission is not less than 14 OFDM symbols.
  • the length of time used by the second uplink subframe for uplink information transmission is equal to the length of time of one subframe.
  • the second uplink subframe is in the same uplink burst as the first uplink subframe, that is, in the first uplink burst.
  • the second uplink subframe is on the same uplink as the first uplink subframe.
  • the access network device can obtain the HARQ-ACK fed back by the terminal device to the scheduled downlink data in the first downlink burst, so that the access network device can Determining, according to the HARQ-ACK fed back by the terminal device, whether retransmission of data without scheduling success or starting transmission of new data is needed in the second downlink burst, and determining, in the second downlink burst, The transmission of new data to the data that has been successfully scheduled can reduce the delay of data processing.
  • the second uplink subframe may be after the first uplink subframe, but not in the first uplink burst, but in the uplink after the first uplink burst. Hair.
  • the second uplink subframe may be the last one, the first one, or the second last uplink subframe of the uplink burst after the first uplink burst, or is used for uplink data or information.
  • the uplink subframe whose transmission time is not less than a certain threshold.
  • this method is not superior to the manner in which the second uplink subframe is in the first uplink burst, because if the second uplink subframe is not in the same uplink direction as the first uplink subframe, If the first uplink subframe does not contend for the unlicensed spectrum resource, the access network device needs to obtain the downlink of the first downlink burst scheduling after the second downlink burst and the second uplink subframe.
  • the HARQ-ACK corresponding to the data. This is equivalent to increasing the data transmission delay of the access network device (English: delay).
  • the second uplink subframe may be in the second uplink burst, the second uplink burst is after the first uplink burst, and the second uplink burst and the first uplink burst Sending neighbors, that is, the other uplink bursts are not included between the first uplink burst and the second uplink burst, for example, as shown in FIG. 4N.
  • a burst consisting of uplink subframes continuously transmitted in time can be regarded as an uplink burst, but it is not excluded that consideration based on the maximum usage duration on the unlicensed spectrum, such as MCOT, will be continuous.
  • the transmitted uplink subframe is divided into multiple uplink bursts.
  • the second uplink subframe may be the last one, the first one, or the second last uplink subframe of the second uplink burst, or the length of time for uplink data or information transmission is not
  • An uplink subframe that is smaller than a specific threshold is not specifically limited in the present invention.
  • the terminal device before the sending, by the terminal device, the second feedback information to the access network device on the second uplink channel, the terminal device further includes:
  • the terminal device determines, according to the overlapping codebook indication information, a second downlink subframe set associated with the second uplink subframe.
  • the determining, by the terminal device, the second downlink subframe set associated with the second uplink subframe according to the overlapping codebook indication information may include: the terminal device according to the overlapping code
  • the indication information may be used to determine whether the first feedback information is included in the second feedback information that is fed back in the second uplink subframe.
  • the method may include: the terminal device according to the overlapping codebook indication information, Determining, by the terminal device, the feedback information corresponding to the downlink subframes in the second downlink subframe set, or the terminal device, according to the overlapping codebook indication information, And determining, in the second downlink subframe, which downlink subframes in the second downlink subframe set, where the subframes may include some or all subframes in the first downlink subframe set, The subframes in the first downlink subframe set may not be included.
  • the overlapping codebook indication information is used to indicate whether the second feedback information that is fed back in the second uplink subframe includes the feedback information corresponding to the downlink data in the first downlink subframe set.
  • the overlapping codebook indication information may also be used to indicate that the second feedback information that is fed back in the second uplink subframe specifically includes the downlink information corresponding to the downlink subframes in the first downlink subframe set.
  • the second feedback information may include all content of the first feedback information; or the second feedback information may include part of the content of the first feedback information.
  • the overlapping codebook indication information may be carried in uplink scheduling indication information, such as a UL grant, for scheduling the second uplink subframe.
  • uplink scheduling indication information such as a UL grant
  • a 1-bit indication information is included in the UL grant, and when the bit is set to 1 or 0, it indicates that the second feedback information in the second uplink subframe feedback needs to include the first reverse Feeding information; or the second downlink subframe set associated with the second uplink subframe includes all downlink subframes or partial downlink subframes in the first downlink subframe set, and further, when part of the downlink subframe is included
  • the terminal device may determine, by way of pre-configuration or other signaling indication, part of the downlink subframes in the first downlink subframe set associated with the second uplink subframe.
  • the terminal device determines, according to the overlapping codebook indication information, that the second feedback information that is transmitted in the second uplink subframe includes the first feedback information
  • the second feedback information includes all contents of the first feedback information
  • the second feedback information corresponds to the feedback information corresponding to all the downlink subframes included in the second downlink subframe set.
  • the overlapping codebook indication information may not be sent by the access network device, but implicitly indicated. For example, if the terminal device needs to determine by the CCA before the first uplink subframe, whether the first feedback information can be sent in the first uplink subframe, the terminal device may determine the second uplink subframe. The associated second feedback information needs to include the entire content of the first feedback information; or, for example, if the terminal device determines that the first feedback information is transmitted before the first uplink subframe, the unlicensed spectrum resource needs to be determined by the CCA. If it is available, the terminal device may determine that the second feedback information of the second uplink subframe needs to include the feedback information corresponding to the downlink data in the first downlink subframe set.
  • the terminal device determines, according to the overlapping codebook indication information, a second downlink subframe set that is associated with the second uplink subframe, and may further include, according to the terminal device, according to the And overlapping the codebook indication information, determining that the second downlink subframe set is all downlink subframes in the downlink burst where the downlink subframe including the overlapping codebook indication information is located, and the second uplink subframe satisfies a HARQ timing relationship, where
  • the HARQ timing relationship can be understood as follows: assuming that the second uplink subframe is represented by the subframe n, and the subframe in the downlink burst that satisfies the HARQ timing relationship with the second uplink subframe is represented by the subframe m, the result of the nm is not less than 4, the future LTE system is not excluded to define a shorter HARQ timing relationship, for example, the result of nm may also be not less than N, where N is a natural number less than 4; or the
  • the content of the second feedback information transmission may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the overhead of the second feedback information may be determined according to the probability of the first feedback information transmission success, so that the transmission of the first feedback information can be ensured, and the second uplink subframe can be reduced for transmission as much as possible.
  • the method further includes:
  • the terminal device Determining, by the terminal device, a third uplink subframe that is associated with the third downlink subframe set, where the third downlink subframe set belongs to the at least one downlink burst, and the third downlink subframe set and the first downlink subframe
  • the third uplink subframe is used to send the third feedback information corresponding to the downlink data in the third downlink subframe set, and the third uplink subframe is in the first uplink.
  • the third uplink subframe is after the first uplink subframe;
  • the terminal device sends the third feedback information to the access network device on the third uplink channel.
  • the relationship between the first downlink subframe set and the third downlink subframe set, and the relationship between the first uplink subframe and the third uplink subframe may be as shown in FIG. 4O.
  • the feedback information corresponding to the downlink data included in the at least one downlink burst may be fed back in the third uplink subframe, as compared to the at least one downlink.
  • the feedback information corresponding to the downlink data included in the burst is fed back in the first uplink subframe, which can reduce the overhead of the feedback information included in the first uplink subframe, and can ensure the at least one downlink burst as much as possible.
  • the transmission of feedback information corresponding to the downlink data included in the data is
  • the reason is that if the feedback information corresponding to the downlink data in the at least one downlink burst is fed back in the first uplink subframe, if the terminal device does not compete for the unlicensed band resource in the first uplink subframe, then The feedback information corresponding to the downlink data included in the at least one downlink burst cannot be transmitted. In this case, the terminal device determines the third uplink subframe, and may ensure that the at least one downlink burst is included as much as possible.
  • the downlink data corresponds to the transmission of part of the feedback information.
  • the terminal device before the sending, by the terminal device, the third feedback information to the access network device on the third uplink channel, the terminal device further includes:
  • the terminal device determines, according to the overlapping codebook indication information, a third downlink subframe set associated with the third uplink subframe.
  • the terminal device determines, according to the overlapping codebook indication information, a third downlink subframe set that is associated with the third uplink subframe, and may further include, according to the overlapping codebook, the terminal device Instructing information, determining that the third downlink subframe set is a downlink burst in which the downlink subframe including the overlapping codebook indication information is located, and removing the first downlink subframe set and satisfying the third uplink subframe
  • the HARQ timing relationship herein can be understood as: assuming that the third uplink subframe is represented by the subframe n, and the subframe subframe in the downlink burst that satisfies the HARQ timing relationship with the third uplink subframe
  • the frame m indicates that the result of nm is not less than 4, and the later LTE system does not exclude a shorter HARQ timing relationship.
  • the result of nm may be not less than N, where N is a natural number less than 4; Determining, by the terminal device, the third downlink subframe set associated with the third uplink subframe according to the overlapping codebook indication information, and further comprising: assuming that the uplink burst where the third uplink subframe is located is first Upstream burst, the terminal device determines, according to the overlapping codebook indication information, that all downlink subframes associated with the first uplink subframe in the first uplink burst are all the third downlink sub-frame The downlink subframe included in the frame set.
  • the overlapping codebook indication information may be carried in an uplink scheduling indication information, such as a UL grant, for scheduling a third uplink subframe.
  • an uplink scheduling indication information such as a UL grant
  • the one-bit indication information is included in the UL grant, and when the bit is set to 0 or 1, it is indicated that the third feedback information that is fed back in the third uplink subframe does not need to include the first feedback information; or
  • the third downlink subframe set associated with the uplink subframe does not include all downlink subframes in the first downlink subframe set.
  • the overlapping codebook indication information may not be sent by the access network device, but implicitly indicated. For example, if the terminal device does not need to be determined by the CCA before the first uplink subframe, whether the first feedback information can be sent in the first uplink subframe, then the terminal The device may determine that the third feedback information associated with the third uplink subframe does not need to include the entire content of the first feedback information; or, for example, if the terminal device determines to transmit the first in the first uplink subframe.
  • the terminal device Before the information is forwarded, the terminal device does not need to determine whether the unlicensed spectrum resource is available by using the CCA, and the terminal device may determine that the third downlink information of the third uplink subframe does not include the downlink data corresponding to the first downlink subframe set. Feedback information. For example, when the first uplink subframe is the first uplink subframe after the downlink burst, the terminal device may not perform CCA when the first uplink subframe transmits the first feedback information, so that the first feedback information The transmission opportunity is ensured that the terminal device can not transmit the first feedback information in the third uplink subframe.
  • “one downlink burst” may be a downlink burst included in at least one downlink burst in which the first downlink subframe set is located.
  • the uplink burst where the third uplink subframe is located and the uplink burst where the first uplink subframe is located may be the same or different.
  • the third uplink subframe may be the last one of the uplink bursts in the third uplink subframe or the second last uplink subframe, where the uplink burst where the third uplink subframe is located and the When the uplink burst in which the first uplink subframe is located is not an uplink burst, the third uplink subframe may be the first uplink subframe in the uplink burst where the third uplink subframe is located; or
  • the third uplink subframe is an uplink subframe used for uplink data or information transmission, and the length of the uplink subframe is not less than a specific threshold, which is not specifically limited in the present invention.
  • the content of the third feedback information transmission may be determined according to the probability that the first feedback information is successfully transmitted, and the overhead of the third uplink subframe for transmitting the third feedback information may be reduced as much as possible.
  • the terminal device determines the fourth uplink subframe, and determines, according to the overlapping codebook indication information corresponding to the fourth uplink subframe, the association with the fourth uplink subframe.
  • the fourth downlink subframe set includes the first downlink subframe set; or the terminal device determines the fourth uplink subframe, and determines the fourth in the fourth uplink subframe according to the overlapping codebook indication information. Whether the first feedback information is included in the feedback information transmitted by the uplink subframe.
  • the feature of the fourth uplink subframe may be
  • the second uplink subframe is similar in features, for example, may be the last one of the downlink bursts in the first uplink subframe or the second last subframe; or the fourth uplink subframe is in the same uplink as the first uplink subframe. suddenly.
  • the uplink burst where the fourth uplink subframe is located and the uplink burst where the first uplink subframe is located may be the same or different.
  • the fourth uplink subframe may be The last one of the uplink bursts in the fourth uplink subframe or the second-to-last uplink subframe, where the uplink burst where the fourth uplink subframe is located and the uplink burst where the first uplink subframe is located.
  • the fourth uplink subframe may be the first uplink subframe in the uplink burst where the fourth uplink subframe is located; or, optionally, the fourth uplink subframe
  • the frame is an uplink subframe for which the length of the uplink data or the information transmission is not less than a specific threshold, and is not specifically limited in the present invention.
  • the method before the sending, by the terminal device, the first feedback information on the first uplink channel to the access network device, the method further includes:
  • the terminal device receives the feedback information bearer indication information sent by the access network device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the first feedback information on the first uplink channel.
  • the feedback information may be used to carry the indication information, indicating that the terminal device is in the last UL. Subframe feedback. As shown in FIG. 4F, although each downlink subframe in the corresponding downlink burst has a corresponding uplink subframe, the HARQ-ACK can be fed back. However, in terms of resource overhead, the access network device can carry the indication information through the feedback information. And indicating which uplink subframes of the terminal device include the feedback resource of the HARQ-ACK.
  • the feedback information in the current LTE system is generally transmitted in the PUCCH in an uplink subframe, and the PUCCH generally occupies one resource block (English: Resource Block, RB) in the frequency domain, and the resource overhead is not high at this time.
  • resource block English: Resource Block, RB
  • the information transmission on the carrier of the unlicensed spectrum needs to occupy a certain proportion of frequency domain resources.
  • an access network device or a terminal device needs to occupy at least 80% of information on a carrier of an unlicensed spectrum.
  • the frequency domain resource range taking a total of 100 resource blocks of the carrier as an example, requires 80% of the frequency domain resource range.
  • the information transmission on the unlicensed spectrum is also limited by the power spectral density.
  • a frequency domain resource occupation mode is that one physical uplink control channel occupies 10 resource blocks, and the adjacent resource resource blocks of the 10 resource blocks in the frequency domain are 10 resource blocks.
  • the resource occupation overhead of one physical uplink control channel on the unlicensed spectrum is significantly higher than that of the current LTE system.
  • the feedback information bearer indication information may be carried in the UL grant, or may be carried in the common control signaling, for example, carrying a downlink burst or more before the uplink burst where the first uplink subframe is located.
  • the common control information may also be used to indicate an end time of a downlink burst including the common control information.
  • the resource overhead for transmitting the first feedback information in the first uplink subframe can be saved, and the data transmission efficiency is ensured.
  • the same indication information may be used for the second uplink subframe, the third uplink subframe, and the fourth uplink subframe. That is,
  • the terminal device before the sending, by the terminal device, the second feedback information to the access network device on the second uplink channel, the terminal device further includes:
  • the terminal device receives the feedback information bearer indication information sent by the access network device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the second feedback information on the second uplink channel.
  • the terminal device before the sending, by the terminal device, the third feedback information to the access network device on the third uplink channel, the terminal device further includes:
  • the terminal device receives the feedback information bearer indication information sent by the access network device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the third feedback information on the third uplink channel.
  • the method before the sending, by the terminal device, the fourth feedback information on the fourth uplink channel to the access network device, the method further includes:
  • the terminal device receives the feedback information bearer indication information sent by the access network device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the fourth feedback information on the fourth uplink channel.
  • subframe configuration indication information described below is similarly described for the second uplink subframe, the third uplink subframe, and the fourth uplink subframe.
  • the terminal device determines that the first downlink subframe set is associated with the first uplink subframe, and includes:
  • the terminal device Determining, by the terminal device, the first downlink subframe set and the first uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Associated.
  • the terminal device determines that the second downlink subframe set is associated with the second uplink subframe, and includes:
  • the terminal device Determining, by the terminal device, the second downlink subframe set and the second uplink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information Union.
  • the terminal device determines that the third downlink subframe set is associated with the third uplink subframe, and includes:
  • the terminal device Determining, by the terminal device, the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information, determining that the third downlink subframe set is related to the third uplink subframe Union.
  • the first uplink subframe is associated as an example for description.
  • the terminal device determines the first downlink subframe according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst and the timing relationship between the downlink data and the feedback information.
  • the set is associated with the first uplink subframe
  • the method includes: the terminal device according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst, and a timing relationship between the downlink data and the feedback information, where Determining the first downlink subframe set that is associated with the first uplink subframe; and the method further includes: the terminal device according to the downlink subframe corresponding to each downlink burst in the at least one downlink burst And configuring a timing relationship between the indication information and the downlink data and the feedback information, and determining the first uplink subframe that is associated with the first downlink subframe set.
  • the downlink subframe configuration indication information is used to indicate the number of all downlink subframes included in the downlink burst corresponding to the downlink subframe configuration indication information
  • the downlink burst corresponding to the downlink subframe configuration indication information may be a downlink burst including the downlink subframe configuration indication information.
  • the time length of the downlink subframe included in the downlink burst may be equal to the length of time of one downlink subframe, for example, 1 ms, and is used for The length of the line data transmission may also be less than the length of time of one downlink subframe, for example, less than 1 ms.
  • the time length of the last downlink subframe included in the downlink burst in FIG. 4P and 4Q for downlink data or downlink information transmission is less than the length of time of one downlink subframe.
  • the downlink subframe configuration indication information is used to indicate all downlink subframes or all downlink subframes included in the downlink burst corresponding to the downlink subframe configuration indication information, and all the downlink subframes are indicated, which may include indicating the downlink subframe.
  • the temporal position of the frame, and the temporal position of the downlink subframe may be represented by the subframe label of the downlink subframe.
  • the terminal device may receive the downlink subframe configuration indication information in one or more subframes in a downlink burst as shown in FIG. 4P, where the downlink subframe configuration indication information indicates that the downlink burst includes 6 Downstream subframes.
  • all the downlink subframes that meet the HARQ timing relationship before the first uplink subframe and before the first uplink subframe may be used as the first according to the HARQ timing relationship.
  • the first downlink subframe set associated with the uplink subframe, and in FIG. 4P the terminal device determines that the first uplink subframe in the uplink burst is the first uplink subframe, and the terminal device can determine a downlink burst.
  • the terminal device may also determine other uplink subframes that are in the same uplink burst as the first uplink subframe, and may also be used to feed back feedback information corresponding to the downlink data included in one downlink burst in FIG. 4P, that is, HARQ- ACK information, whether the HARQ-ACK information fed back by the uplink subframe includes the HARQ-ACK information corresponding to the downlink data of the first downlink subframe set, may be indicated by explicit signaling, or may be learned by an implicit manner, for example, The terminal device may determine, according to the overlapping codebook indication information, whether the uplink subframe is a second uplink subframe or a third uplink subframe.
  • the terminal device may determine, according to the HARQ timing relationship, and the downlink subframe configuration indication information, that the downlink subframe is included in the downlink burst.
  • the first, second, third, fourth, fifth, and sixth downlink subframes are downlink subframes included in the second downlink subframe set associated with the second uplink subframe.
  • the terminal device may determine to include the downlink subframe according to the HARQ timing relationship and the downlink subframe configuration indication information.
  • the downlink burst of the frame configuration indication information includes six downlink subframes, and the terminal device may use the downlink subframes belonging to the first downlink subframe set among the six downlink subframes (ie, the first, the second, the first The three downlink subframes are excluded, and the remaining downlink subframes, that is, the fourth one included in one downlink burst in FIG. 4P, The fifth and sixth downlink subframes serve as a third downlink subframe set associated with the third uplink subframe.
  • the terminal device may receive the downlink subframe configuration indication information in one or more subframes in a downlink burst as shown in FIG. 4P, where the downlink subframe configuration indication information indicates that the downlink burst includes 6 Downstream subframes.
  • the terminal device determines, according to the downlink subframe configuration indication information, that the downlink burst includes six downlink subframes. If the terminal device determines that the first, second, and third downlink subframes of the six downlink subframes are downlink subframes included in the first downlink subframe set, the terminal device may consider the HARQ timing. The latest uplink subframe that satisfies the HARQ timing with the third downlink subframe is determined to be the first uplink subframe.
  • the HARQ timing is considered to be 4 ms; further optionally, if the terminal device determines the 6 downlink subframes
  • the frame is a downlink subframe included in the second downlink subframe set, and the terminal device may determine, as the second uplink subframe, the latest uplink subframe that meets the HARQ timing of the sixth downlink subframe, in consideration of the HARQ timing; or If the terminal device determines that the fourth, fifth, and sixth downlink subframes included in one downlink burst are downlink subframes included in the third downlink subframe set, the terminal device may The latest uplink subframe in which the six downlink subframes satisfy the HARQ timing is determined as the third uplink subframe.
  • FIG. 4Q shows another association relationship between a downlink subframe set and an uplink subframe.
  • the terminal device determines, according to the downlink subframe configuration indication information that is included in the first downlink burst and the second downlink burst, that the first downlink burst includes two downlink sub-subjects.
  • the second downlink burst includes four downlink subframes
  • the terminal device can determine that the first uplink subframe of the second uplink burst is the first uplink subframe, the terminal device can be based on the HARQ timing relationship and the downlink And determining, by the subframe configuration indication information, that the two downlink subframes included in the first downlink burst and the first downlink subframe included in the second downlink burst are the first downlink associated with the first uplink subframe a downlink subframe included in the subframe set; if the terminal device determines that the last uplink subframe in the second uplink burst is a subframe that can feed back HARQ-ACK, according to the HARQ timing relationship, on the one hand, the terminal device may determine The downlink subframe associated with the last uplink subframe includes two downlink subframes in the first downlink burst and four downlink subframes in the second downlink burst.
  • the last uplink subframe may correspond. this The second uplink subframe in the embodiment; or the terminal device may determine that the downlink subframe associated with the last uplink subframe includes the second, third, and fourth downlinks in the second downlink burst
  • the subframe, in this case, the last uplink subframe may correspond to the third uplink subframe in the embodiment of the present invention.
  • the structure of FIG. 4Q is also applicable to the terminal device according to the downlink subframe configuration indication information and The first (two or three) uplink subframes associated with the first (two or three) downlink subframe set are determined by the HARQ timing relationship, and are not specifically limited herein.
  • the terminal device Determining, by using the downlink subframe configuration indication information, the number of downlink subframes included in the downlink burst, and determining, by the terminal device, whether the downlink burst includes the reference signal (eg, a cell-specific reference signal CRS, a cell-specfic reference signal)
  • the reference signal eg, a cell-specific reference signal CRS, a cell-specfic reference signal
  • the number of downlink subframes is higher, and the transmission reliability is higher. This ensures that the access network device and the terminal device understand the number of downlink subframes included in the downlink burst, thereby ensuring downlink data feedback of the terminal device for the downlink subframe.
  • the HARQ-ACK information is consistent with the understanding of the access network device.
  • the downlink subframe configuration indication information is further used to indicate a part of the downlink subframes in the downlink burst corresponding to the downlink subframe configuration indication information.
  • a number or part of a downlink subframe. Indicates a part of the downlink subframe, which may include a time position indicating the part of the downlink subframe, where the time position of the part of the downlink subframe may be represented by a subframe label corresponding to the part of the downlink subframe.
  • the downlink subframe configuration indication information may also be used to indicate that the downlink burst including the downlink subframe configuration indication information is the first downlink burst, and the subframe including the downlink subframe configuration indication information is a sub-frame.
  • the downlink subframe configuration indication information may also be used to indicate the number of subframes included in the first downlink subframe to the subframe n included in the first downlink burst.
  • the downlink subframe configuration indication information is further used to indicate the first downlink subframe set.
  • the terminal device receives the downlink subframe configuration indication information in the fourth downlink subframe of a downlink burst, the downlink subframe configuration indication information may be used to indicate the downlink burst.
  • the number of the downlink subframes is 4, and optionally, the terminal device may use the four downlink subframes as the first downlink subframe set; and assume that the terminal device is in the fifth downlink subframe of one downlink burst.
  • the downlink subframe configuration indication information may be used to indicate that the number of downlink subframes in the downlink burst is 5.
  • Other timing relationships for example, HARQ timing relationships
  • the timing relationship between the downlink data and the feedback information may be pre-configured, or may be notified by the access network device, and is not specifically limited.
  • the downlink subframe configuration indication information is further used to indicate a downlink burst where the downlink subframe configuration indication information is located.
  • the downlink subframe configuration indication information may indicate the downlink burst where the downlink subframe configuration indication information is located. Start position and/or end position.
  • the terminal device can identify the downlink burst where the downlink subframe configuration indication information is located by receiving the downlink subframe configuration indication information. For example, as shown in FIG. 4P, it is assumed that the terminal device receives the downlink subframe configuration indication information in the last downlink subframe of a downlink burst, and the downlink subframe configuration indication information indicates that the downlink burst includes six downlinks.
  • the terminal device can determine that the starting position of the downlink burst is a time position corresponding to the subframe start boundary of the last downlink subframe and corresponding to 5 subframes (or 5 ms) of the start boundary of the subframe. .
  • the downlink subframe configuration indication information is further used to indicate the first downlink subframe set.
  • the determining method is also applicable to determining that the second downlink subframe set is associated with the second uplink subframe, and is also applicable to determining that the third downlink subframe set is associated with the third uplink subframe.
  • the terminal device can reliably detect the first downlink subframe set, and then transmit the correct first feedback information in the first uplink subframe.
  • the downlink subframe configuration indication information is included in a last one and/or a second last downlink subframe in each downlink burst in the at least one downlink burst.
  • the advantage of this is that it can be better applied to the flexible uplink and downlink configuration on the unlicensed spectrum, because the downlink subframe configuration indication information is carried in the first and/or second last downlink subframes.
  • the change of the number of downlink subframes of the downlink burst corresponding to the downlink subframe configuration indication information may be maximized.
  • the downlink subframe configuration indication information is carried in the physical layer common control signaling, and the physical layer common control information may be further used to indicate the downlink corresponding to the downlink subframe configuration indication information.
  • the Cell Common Radio Network Temporary Identity CC-RNTI
  • CC-RNTI Cell Common Radio Network Temporary Identity
  • the downlink subframe configuration indication information is used to indicate the number of downlink subframes in the downlink burst where the downlink subframe configuration indication information is located.
  • the terminal device determines, according to the received first downlink subframe set, the first uplink subframe that is associated with the first uplink subframe, so that the feedback information corresponding to the first downlink subframe set is transmitted in the first uplink subframe. It can meet the flexible uplink and downlink configuration in the U-LTE system and can be guaranteed in the U-LTE scenario.
  • the terminal device can transmit the ACK/NACK feedback information reasonably, and by carrying the feedback information corresponding to the multiple downlink data in the first uplink subframe, the resource utilization of the transmission can be improved, and resource waste is avoided.
  • the present invention also provides a related device for implementing the foregoing method.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 50 includes a processor 501, a memory 502, a communication module 503, and a bus 504, wherein the processor 501, the memory 502, and the communication module 503 can be connected by a bus or other means, and FIG. 5 is passed through the bus 504. Connection is an example.
  • the terminal device 50 may further include: an input/output (I/O) interface interface 505, an I/O controller 506, a display 507, a sensor 508, and a power module 509.
  • I/O input/output
  • the processor 501 can be a general-purpose processor, such as a central processing unit (CPU), operating system software for running the terminal device 50, and required application software.
  • the processor 501 can process the data received through the communication module 503.
  • Processor 501 can also process data to be transmitted to communication module 503 for wireless transmission.
  • the memory 502 is configured to store the transmission program code of the feedback information, complete the storage of various software programs of the terminal device, store the data, run the software, etc., and the memory 502 may include a volatile memory (English: Volatile Memory), such as random storage. Take the memory (English: Random Access Memory, RAM).
  • the memory 502 may also include a non-volatile memory (English: Non-Volatile Memory), such as a read-only memory (ROM), a hard disk (English: Hard Disk Drive, HDD), or a solid state hard disk (English: Solid-State Drive, SSD).
  • Memory 502 can also include a combination of the above types of memory.
  • the communication module 503 provides a communication function for the terminal device 50 for transmitting processing (for example, amplifying, modulating, encoding, etc.) the mobile communication signal generated by the processor 501, and also for receiving processing of the mobile communication signal received by the antenna (for example, Demodulation, decoding, etc., the communication module 503 can be applied to a cellular network, such as GSM, UMTS, LTE, CDMA network, etc., and can also be applied to networks such as WLAN, Near Field Communication (NFC), Bluetooth, etc. One or more.
  • a cellular network such as GSM, UMTS, LTE, CDMA network, etc.
  • networks such as WLAN, Near Field Communication (NFC), Bluetooth, etc.
  • NFC Near Field Communication
  • Bus 504 can be an industry standard architecture (English: Industry Standard Architecture, ISA) bus, external device interconnection (PCI) bus, extended standard architecture (English: Extended Industry Standard Architecture, EISA) bus, integrated circuit bus (English: Inter Integrated Circuit, IIC).
  • ISA Industry Standard Architecture
  • PCI external device interconnection
  • EISA Extended Industry Standard Architecture
  • IIC Inter Integrated Circuit
  • the I/O interface 505 is an external interface of the terminal device 50, and includes one of a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, and a button interface. A variety.
  • USB Universal Serial Bus
  • SD Secure Digital
  • the I/O controller 506 is used in the terminal device 50 for controlling data interaction between various input and output devices, and particularly includes data interaction between the processor 501 and the I/O interface 505 and the display 507.
  • the display 507 is a display screen of the terminal device 50 and a touch screen.
  • the display 507 is used to display the software running state, the power state, the time, the user configuration interface, and the configuration result of the terminal device 50.
  • the touch screen is configured to receive a user touch operation and convert it into a user operation. instruction.
  • the sensor 508 is a variety of sensor devices, including one or more of a Global Positioning System (GPS) module, a gravity sensor, an acceleration sensor, a distance sensor, a camera, an optical sensor, and the like.
  • GPS Global Positioning System
  • the power module 509 supplies power to the various modules of the terminal device 50.
  • the processor 501 is mainly used to invoke a program stored in the memory 502, and performs the following operations:
  • the processor 501 receives the downlink data sent by the access network device in the downlink subframe in the at least one downlink burst by using the communication module 503;
  • the processor 501 determines that the first downlink subframe set is associated with the first uplink subframe, the first downlink subframe set belongs to the at least one downlink burst, and the first uplink subframe is used to send the The first feedback information corresponding to the downlink data in the first downlink subframe set, where the first uplink subframe is in the first uplink burst, and the first uplink burst is after the at least one downlink burst ;
  • the processor 501 determines a first feedback information codebook, and determines the first feedback information according to the first feedback information codebook;
  • the processor 501 determines a first uplink channel in the first uplink subframe
  • the processor 501 sends the first feedback information to the access network device on the first uplink channel by using the communication module 503.
  • processor 501 is further configured to:
  • the processor 501 determines that the second downlink subframe set is associated with the second uplink subframe, the second downlink subframe set belongs to the at least one downlink burst, and the first downlink subframe set is the second a second subset of the downlink subframes, where the second uplink subframe is used to send the second feedback information corresponding to the downlink data in the second downlink subframe set, where the second uplink subframe is in the first In the uplink burst, the second uplink subframe is after the first uplink subframe;
  • the processor 501 determines a second feedback information codebook, and determines the second feedback information according to the second feedback information codebook;
  • the processor 501 determines a second uplink channel in the second uplink subframe.
  • the processor 501 sends the second feedback information to the access network device on the second uplink channel by using the communication module 503.
  • the processor 501 before the sending, by the processor 501, the second feedback information on the second uplink channel to the access network device, the processor 501 is further configured to:
  • the processor 501 receives the overlapping codebook indication information sent by the access network device by using the communication module 503;
  • the processor 501 determines, according to the overlapping codebook indication information, a second downlink subframe set associated with the second uplink subframe.
  • processor 501 is further configured to:
  • the processor 501 determines that the third downlink subframe set is associated with the third uplink subframe, the third downlink subframe set belongs to the at least one downlink burst, and the third downlink subframe set and the first downlink
  • the third uplink subframe is used to send the third feedback information corresponding to the downlink data in the third downlink subframe set, and the third uplink subframe is in the first uplink.
  • the third uplink subframe is after the first uplink subframe;
  • the processor 501 determines a third feedback information codebook, and determines the third feedback information according to the third feedback information codebook;
  • the processor 501 determines a third uplink channel in the third uplink subframe.
  • the processor 501 sends the third feedback information to the access network device on the third uplink channel by using the communication module 503.
  • the processor 501 is configured by the communication module 503 on the third uplink channel.
  • the processor 501 is further configured to: before the access network device sends the third feedback information:
  • the processor 501 receives the overlapping codebook indication information sent by the access network device by using the communication module 503;
  • the processor 501 determines, according to the overlapping codebook indication information, a third downlink subframe set associated with the third uplink subframe.
  • the processor 501 before the processor 501 sends the first feedback information to the access network device by using the communications module 503, the processor 501 is further configured to:
  • the processor 501 receives the feedback information bearer indication information sent by the access network device by using the communication module 503, where the feedback information bearer indication information is used to indicate whether the terminal device sends the First feedback information.
  • the processor 501 determines that the first downlink subframe set is associated with the first uplink subframe, and includes:
  • the processor 501 determines, according to the downlink subframe configuration indication information corresponding to each downlink burst in the at least one downlink burst, and the timing relationship between the downlink data and the feedback information, that the first downlink subframe set is related to the first uplink subframe. Union.
  • the downlink subframe configuration indication information is included in a last one and/or a second last downlink subframe in each downlink burst in the at least one downlink burst.
  • the downlink subframe configuration indication information is used to indicate the number of downlink subframes in the downlink burst where the downlink subframe configuration indication information is located.
  • FIG. 6 is a schematic structural diagram of an access network device according to an embodiment of the present invention.
  • the access network device 60 includes a processor 601, a memory 602, a communication module 603, and a bus 604.
  • the processor 601, the memory 602, and the communication module 603 can be connected by using a bus or other manner.
  • the bus 604 is connected as an example.
  • the access network device 60 may further include a network interface 605 and a power module 606.
  • the processor 601 can be a digital signal processing (DSP) chip.
  • the processor 601 is configured to perform wireless channel management, and controls the handover of the terminal device in the control area.
  • the processor 601 may include: an AM/CM module (for words) Center for road switching and information exchange), BM module (for call processing, signaling processing, radio resource management, radio link management and circuit maintenance functions), TCSM module (for multiplexing demultiplexing and code) Transform function) and other modules.
  • AM/CM for words
  • BM module for call processing, signaling processing, radio resource management, radio link management and circuit maintenance functions
  • TCSM module for multiplexing demultiplexing and code Transform function
  • the memory 602 is used to store the transmission program code of the feedback information.
  • the memory 602 may be a ROM or a RAM, and may be used to store the program code.
  • the communication module 603 is configured to perform a transmission process (eg, modulation) on the mobile communication signal generated by the processor 601, and is also used to perform reception processing (eg, demodulation) on the mobile communication signal received by the antenna.
  • a transmission process eg, modulation
  • reception processing eg, demodulation
  • the bus 604 can be an ISA bus, a PCI bus, an EISA bus, an IIC bus, or the like.
  • the network interface 605 is used for access network device 60 to perform data communication with terminals (UEs in mobile stations MS, 3G, and 4G in 2G).
  • the network interface 605 may include one or more of a GSM (2G) wireless network interface, a WCDMA (3G) wireless network interface, and an LTE (4G) wireless network interface, etc., or may be a future 4.5G or 5G wireless network interface.
  • the power module 606 is configured to supply power to various modules of the access network device 60.
  • the processor 601 is further configured to invoke the program code in the memory 602, and perform the following operations:
  • the processor 601 sends downlink data to the terminal device in the downlink subframe in the at least one downlink burst by using the communication module 603;
  • the processor 601 receives the first feedback information sent by the terminal device by using the communication module 603 on the first uplink channel in the first uplink subframe, where the first uplink subframe is related to the first downlink subframe set.
  • the first downlink subframe set belongs to the at least one downlink burst, and the first feedback information is corresponding to the downlink data in the first downlink subframe set, where the first uplink subframe In the first uplink burst, the first uplink burst is after the at least one downlink burst.
  • the access network device 60 can be applied to a 2G communication system (such as GSM), a 3G communication system (such as UMTS), and a 4G communication system (LTE), or can be a future 4.5G or 5G communication system.
  • a 2G communication system such as GSM
  • a 3G communication system such as UMTS
  • a 4G communication system LTE
  • the processor 601 is further configured to:
  • the second feedback information sent by the terminal device on a second uplink channel in the second uplink subframe where the second uplink subframe is associated with the second downlink subframe set, where the The second downlink subframe set belongs to the at least one downlink burst, and the first downlink subframe set is a second subset of the downlink subframes, where the second feedback information is corresponding to downlink data in the second downlink subframe set, and the second uplink subframe is in the first uplink burst, The second uplink subframe is after the first uplink subframe.
  • the processor 601 before the processor 601 receives the second feedback information sent by the terminal device on the second uplink channel in the second uplink subframe, the processor 601 is further configured to:
  • the overlapping codebook indication information is sent by the communication module 603 to the terminal device, where the overlapping codebook indication information is used by the terminal device to determine a second downlink subframe set associated with the second uplink subframe.
  • the processor 601 is further configured to:
  • the third feedback information sent by the terminal device on a third uplink channel in the third uplink subframe where the third uplink subframe is associated with the third downlink subframe set, where the The third downlink subframe set belongs to the at least one downlink burst, and the third downlink subframe set does not overlap with the first downlink subframe set, and the third feedback information and the third downlink subframe set
  • the third uplink subframe is in the first uplink burst or the third uplink subframe is in an uplink burst after the first uplink burst
  • the third The uplink subframe is after the first uplink subframe.
  • the processor 601 before the processor 601 receives the third feedback information sent by the terminal device on the third uplink channel in the third uplink subframe, the processor 601 is further configured to:
  • the overlapping codebook indication information is sent by the communication module 603 to the terminal device, where the overlapping codebook indication information is used by the terminal device to determine a third downlink subframe set associated with the third uplink subframe.
  • the processor 601 before the processor 601 receives the first feedback information sent by the terminal device on the first uplink channel in the first uplink subframe, the processor 601 is further configured to:
  • the first feedback information is described.
  • the processor 601 is further configured to:
  • downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration refers to
  • the indicating information is used by the terminal device to determine, according to the downlink subframe configuration indication information and a timing relationship between the downlink data and the feedback information, that the first downlink subframe set is associated with the first uplink subframe.
  • the downlink subframe configuration indication information is included in a last one and/or a second last downlink subframe in each downlink burst in the at least one downlink burst.
  • the downlink subframe configuration indication information is used to indicate the number of downlink subframes in the downlink burst where the downlink subframe configuration indication information is located.
  • FIG. 7 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.
  • the terminal device 70 includes: a receiving unit 701, a first determining unit 702, a second determining unit 703, a third determining unit 704, and a first sending unit 705, where
  • the first receiving unit 701 is configured to receive downlink data sent by the access network device in a downlink subframe in the at least one downlink burst;
  • the first determining unit 702 is configured to determine that the first downlink subframe set is associated with the first uplink subframe, the first downlink subframe set belongs to the at least one downlink burst, and the first uplink subframe And a first feedback information corresponding to the downlink data in the first downlink subframe set, where the first uplink subframe is in the first uplink burst, and the first uplink burst is in the at least After a downward burst;
  • a second determining unit 703 configured to determine a first feedback information codebook, and determine the first feedback information according to the first feedback information codebook
  • a third determining unit 704 configured to determine, in the first uplink subframe, a first uplink channel
  • the first sending unit 705 is configured to send the first feedback information to the access network device on the first uplink channel.
  • the terminal device 70 is presented in the form of a functional unit.
  • a "unit” herein may refer to an application specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other functions that provide the above functions.
  • the terminal device 70 can take the form shown in FIG.
  • the receiving unit 701, the first determining unit 702, the second determining unit 703, the third determining unit 704, and the first sending unit 705 can be implemented by the processor 501 in FIG.
  • the terminal device 70 further includes:
  • a fourth determining unit configured to determine that the second downlink subframe set is associated with the second uplink subframe, the second downlink subframe set belongs to the at least one downlink burst, and the first downlink subframe set is a second subset of the second downlink subframe, where the second uplink subframe is used to send second feedback information corresponding to the downlink data in the second downlink subframe set, where the second uplink subframe is In the first uplink burst, the second uplink subframe is after the first uplink subframe;
  • a fifth determining unit configured to determine a second feedback information codebook, and determine the second feedback information according to the second feedback information codebook
  • a sixth determining unit configured to determine a second uplink channel in the second uplink subframe
  • a second sending unit configured to send the second feedback information to the access network device on the second uplink channel.
  • the terminal device 70 further includes:
  • a second receiving unit configured to receive the overlapping codebook indication information sent by the access network device
  • a seventh determining unit configured to determine, according to the overlapping codebook indication information, a second downlink subframe set associated with the second uplink subframe.
  • the terminal device 70 further includes:
  • an eighth determining unit configured to determine that the third downlink subframe set is associated with the third uplink subframe, the third downlink subframe set belongs to the at least one downlink burst, and the third downlink subframe set and the third downlink subframe set The first downlink subframe set is not overlapped, and the third uplink subframe is configured to send third feedback information corresponding to the downlink data in the third downlink subframe set, where the third uplink subframe is in the In the first uplink burst or the third uplink subframe, in the uplink burst after the first uplink burst, the third uplink subframe is after the first uplink subframe;
  • a ninth determining unit configured to determine a third feedback information codebook, and determine the third feedback information according to the third feedback information codebook
  • a tenth determining unit configured to determine a third uplink channel in the third uplink subframe
  • a third sending unit configured to send the third feedback information to the access network device on the third uplink channel.
  • the terminal device 70 further includes:
  • a third receiving unit configured to receive the overlapping codebook indication information sent by the access network device
  • an eleventh determining unit configured to determine, according to the overlapping codebook indication information, a third downlink subframe set associated with the third uplink subframe.
  • the terminal device 70 further includes:
  • a fourth receiving unit configured to receive feedback information bearer indication information sent by the access network device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the first uplink on the first uplink channel Feedback.
  • the first determining unit 702 is specifically configured to:
  • FIG. 8 is a schematic structural diagram of an access network device according to an embodiment of the present invention.
  • the access network device 80 includes: a first sending unit 801 and a first receiving unit 802, where
  • the first sending unit 801 is configured to send downlink data to the terminal device in a downlink subframe in the at least one downlink burst;
  • the first receiving unit 802 is configured to receive first feedback information sent by the terminal device on a first uplink channel in the first uplink subframe, where the first uplink subframe is associated with the first downlink subframe set.
  • the first downlink subframe set belongs to the at least one downlink burst, and the first feedback information is corresponding to downlink data in the first downlink subframe set, where the first uplink subframe is In the first uplink burst, the first uplink burst is after the at least one downlink burst.
  • the access network device 80 is presented in the form of a functional unit.
  • a "unit” herein may refer to an ASIC, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above.
  • the access network device 80 can take the form shown in FIG.
  • the first sending unit 801 and the first receiving unit 802 can be implemented by the processor 601 in FIG. 6.
  • the access network device 80 further includes:
  • a second receiving unit configured to receive the terminal setting on a second uplink channel in the second uplink subframe
  • the second downlink subframe is associated with the second downlink subframe set
  • the second downlink subframe set belongs to the at least one downlink burst
  • the first downlink subframe set is configured to send the second feedback information.
  • the second feedback information is corresponding to downlink data in the second downlink subframe set
  • the second uplink subframe is in the first uplink burst
  • the second uplink subframe is after the first uplink subframe.
  • the access network device 80 further includes:
  • a second sending unit configured to send, to the terminal device, the overlapping codebook indication information, where the overlapping codebook indication information is used by the terminal device to determine a second downlink subframe set associated with the second uplink subframe .
  • the access network device 80 further includes:
  • a third receiving unit configured to receive third feedback information that is sent by the terminal device on a third uplink channel in the third uplink subframe, where the third uplink subframe is associated with a third downlink subframe set,
  • the third downlink subframe set belongs to the at least one downlink burst, and the third downlink subframe set does not overlap with the first downlink subframe set, and the third feedback information and the third downlink subframe Corresponding to the downlink data in the set, where the third uplink subframe is in the first uplink burst or the third uplink subframe is in an uplink burst after the first uplink burst, the first The three uplink subframes are after the first uplink subframe.
  • the access network device 80 further includes:
  • a third sending unit configured to send, to the terminal device, the overlapping codebook indication information, where the overlapping codebook indication information is used by the terminal device to determine a third downlink subframe set associated with the third uplink subframe .
  • the access network device 80 further includes:
  • a fourth sending unit configured to send feedback information bearer indication information to the terminal device, where the feedback information bearer indication information is used to indicate whether the terminal device sends the first uplink channel in the first uplink subframe The first feedback information.
  • the access network device 80 further includes:
  • a fifth sending unit configured to send downlink subframe configuration indication information to the terminal device in a downlink subframe in each downlink burst of the at least one downlink burst, where the downlink subframe configuration indication information is used by And the terminal device is configured according to the downlink subframe configuration indication information, and downlink data and a feedback signal.
  • the timing relationship of the information determines that the first downlink subframe set is associated with the first uplink subframe.
  • an embodiment of the present invention further provides a computer readable storage medium storing one or more computer programs, wherein the computer readable
  • the storage medium may be a magnetic disk, an optical disk, a ROM, or a RAM.
  • the one or more computer programs are executed on a processor of one or more of the terminal device or the access network device, and the computer program, when executed, can implement the process of the method embodiment shown in FIG. 3 above.
  • the terminal device determines, according to the received first downlink subframe set, the first uplink subframe associated with the first uplink subframe, so as to transmit the first downlink in the first uplink subframe.
  • the feedback information corresponding to the subframe set can meet the flexible uplink and downlink configuration in the U-LTE system, and can ensure that the terminal device sends the ACK/NACK feedback information reasonably in the U-LTE scenario, and carries the information in the first uplink subframe.
  • the feedback information corresponding to multiple downlink data can improve the resource utilization of the transmission and avoid resource waste.
  • the computer program can be stored/distributed in a suitable medium, such as an optical storage medium or a solid-state medium, provided with other hardware or as part of the hardware, or by other means of distribution, such as over the Internet (English: Internet) or other wired Or wireless system.
  • a suitable medium such as an optical storage medium or a solid-state medium, provided with other hardware or as part of the hardware, or by other means of distribution, such as over the Internet (English: Internet) or other wired Or wireless system.

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Abstract

本发明实施例公开了一种反馈信息的传输方法、相关设备及通信系统，其中该方法包括：终端设备在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；终端设备确定第一下行子帧集合与第一上行子帧相关联，第一下行子帧集合属于至少一个下行突发，第一上行子帧用于发送第一下行子帧集合中的下行数据所对应的第一反馈信息，第一上行子帧在第一上行突发中，第一上行突发在至少一个下行突发之后；终端设备确定第一反馈信息码本，并根据第一反馈信息码本确定第一反馈信息；终端设备在第一上行子帧中确定第一上行信道；终端设备在第一上行信道上向接入网设备发送第一反馈信息。采用本发明，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息。

Description

一种反馈信息的传输方法、相关设备及通信系统 技术领域
本发明涉及通信技术领域，尤其涉及一种反馈信息的传输方法、相关设备及通信系统。
背景技术
长期演进(英文：Long Term Evolution，LTE)系统支持频分双工(英文：Frequency Division Duplexing，FDD)和时分双工(Time Division Duplexing，TDD)两种双工方式。其中，FDD是指上行和下行传输在不同的载波频段上进行，终端设备和接入网设备都允许同时进行接收和发送信号。TDD是指上行和下行传输在相同的载波频段上进行，终端设备/接入网设备在不同的时间进行信道的发送/接收或者接收/发送。基于混合自动重传请求(英文：Hybrid Automatic Repeat Request，HARQ)机制，终端设备对一个下行载波的反馈信息包括确认应答(英文：Acknowledgement，ACK)和非确认应答(英文：Non-Acknowledgement，NACK)。在现有的LTE系统中，终端设备接收物理下行共享信道(英文：Physical Downlink Shared Channel，PDSCH)的子帧与终端设备反馈该PDSCH相应的ACK或NACK的上行子帧之间的子帧间隔是预先定义好的，因此保证了终端设备对ACK或NACK的反馈以及接入网设备对该ACK或NACK的接收。
其中，对于FDD系统，终端设备在下行子帧n-4接收到PDSCH承载的下行数据之后，会在上行子帧n反馈该PDSCH对应的ACK或NACK。对于TDD系统，无线帧的上下行配置是固定的，如图1A所示，LTE当前支持7种不同的TDD上下行配置。其中，D表示下行子帧(英文：Downlink Subframe)，S表示特殊子帧(英文：Special Subrame，SSF)、U表示上行子帧(英文：Uplink Subframe)。PDSCH与其对应的ACK或NACK的时序关系或定时关系如图1B所示，标数字的子帧为用于反馈ACK或NACK的上行子帧n，标识的数字表示在该上行子帧n中需要反馈n-k(k属于K)的下行子帧集合中的PDSCH所对 应的ACK或NACK，例如上下行配置为1的子帧标号n＝2中的K＝{7、6}表示上行子帧n＝2用来反馈n-7和n-6这两个下行子帧中的PDSCH所对应的ACK或NACK，具体n-7为下行子帧5，n-6为下行子帧6。
现有LTE系统的服务小区所部署的频谱都是授权频谱，即只可以被购买了该授权频谱的运营商网络使用。非授权频谱(又可称为免许可频谱)的关注度日益提升，因为非授权频谱不需要购买且任何运营商都可以使用。将来频谱资源会越来越短缺，使得基于授权频谱的LTE系统的服务能力受限。因此，LTE系统使用非授权频谱是一个演进方向，部署在非授权频谱上的LTE系统称为非授权长期演进(英文：Unlicensed-LTE，U-LTE)系统。
非授权频谱上的资源共享是指对特定频谱的使用只规定发射功率、带外泄露等指标上的限制，以及有的地域还有一些附加的共存策略等。考虑到非授权频谱上的多系统友好共存，比如U-LTE与无线保真(英文：Wireless Fidelity，WiFi)系统之间，或多运营商的U-LTE系统之间，在使用非授权频谱时需要遵循一些共存法规的限制，比如先检测后发送(英文：Listen-Before-Talk，LBT)。具体的，接入网设备或终端设备在U-LTE服务小区所在的信道上发送信号之前，需要对该服务小区所在的信道进行空闲信道评估(英文：Clear Channel Assessment，CCA)，一旦检测到的接收功率超过某阈值，则该接入网设备或终端设备暂时不能在该信道上发送信号。直到发现该信道空闲，接入网设备或终端设备才可以在该信道上发送信号，甚至在某些情况下，接入网设备或终端设备还需要进行随机回退，只有在该随机回退的时间内该信道才是空闲的，才可以在该信道上发送信号。基于此，可以获知，对于LTE系统而言，无论是发送下行数据的接入网设备，还是发送上行数据的终端设备，在非授权频谱上的数据传输都是机会性的。此外，在非授权频谱机会性数据传输的基础上，为了适应LTE系统的上下行业务需求，U-LTE系统在非授权频谱上的上下行配置可以是灵活的。
基于非授权频谱的上述特点(机会性数据传输、灵活的上下行配置)，使得现有技术中预定义的PDSCH与HARQ-ACK之间的定时关系在非授权频谱上难以保证。一方面是由于CCA机制的使用，导致无法保证在预定义的定时关系下确定的上行子帧处，终端设备可以竞争到非授权频谱资源；另一方面是 从灵活的上下行配置结构来看，例如对于FDD系统而言，U-LTE系统无法保证在一个下行子帧的子帧起始边界之后的固定4个子帧间隔对应的子帧为上行子帧；又例如，对于TDD系统而言，由于U-LTE系统也不会采用现有图1A中的TDD上下行配置，而是灵活的上下行配置，这样就使得U-LTE系统也没法使用现有图1B中定义的各TDD上下行配置下的上行ACK/NACK反馈定时关系。
如何保证在U-LTE场景下终端设备根据实际调度情况向接入网设备发送ACK/NACK反馈信息，是目前需要解决的技术问题。
发明内容
本发明实施例提供了一种反馈信息的传输方法、相关设备及通信系统，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息，并且能够避免资源浪费。
第一方面，提供了一种反馈信息的传输方法，所述方法包括：
终端设备在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；
所述终端设备确定第一下行子帧集合与第一上行子帧相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一上行子帧用于发送所述第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后；
所述终端设备确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息；
所述终端设备在所述第一上行子帧中确定第一上行信道；
所述终端设备在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
通过实施第一方面描述的方法，终端设备根据接收到的第一下行子帧集合来确定与之关联的第一上行子帧，从而在第一上行子帧中传送第一下行子帧集合对应的反馈信息，可以满足U-LTE系统中灵活的上下行配置，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息，并且通过在第一上行 子帧中承载多个下行数据对应的反馈信息，可以提高传输的资源利用率，避免资源浪费。
结合第一方面，在第一方面的第一种实现方式中，所述方法还包括：
所述终端设备确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
所述终端设备确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
所述终端设备在所述第二上行子帧中确定第二上行信道；
所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
通过执行上述步骤，相对于现有技术中的只在一个上行子帧反馈与下行被调度的数据相关联的反馈信息，本步骤可以增强反馈信息的传输机会，从而提高反馈信息的传输成功几率。
结合第一方面的第一种实现方式，在第一方面的第二种实现方式中，所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的重叠码本指示信息；
所述终端设备根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
通过执行上述步骤，可以根据第一反馈信息传输成功的几率，确定第二反馈信息传输的内容，从而既能保证第一反馈信息的传输，也能尽可能减小第二上行子帧用于传输第二反馈信息的开销。
结合第一方面，在第一方面的第三种实现方式中，所述方法还包括：
所述终端设备确定第三下行子帧集合与第三上行子帧相关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下 行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后；
所述终端设备确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
所述终端设备在所述第三上行子帧中确定第三上行信道；
所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
通过执行上述步骤，所述至少一个下行突发中包括的下行数据对应的反馈信息除了可以在第一上行子帧反馈，还可以在第三上行子帧反馈，相比于将所述至少一个下行突发中包括的下行数据对应的反馈信息都在第一上行子帧反馈，可以减小第一上行子帧中包括的反馈信息的开销，并且，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的反馈信息的传输。这是因为，如果将所述至少一个下行突发中包括下行数据对应的反馈信息都在第一上行子帧反馈，那么如果终端设备在第一上行子帧没有竞争到免许可频段资源，那么所述至少一个下行突发中包括的下行数据对应的反馈信息都无法传输，在这种情况下，终端设备确定第三上行子帧，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的部分反馈信息的传输。
结合第一方面的第三种实现方式，在第一方面的第四种实现方式中，所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的重叠码本指示信息；
所述终端设备根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
通过执行上述步骤，可以根据第一反馈信息传输成功的几率，确定第三反馈信息传输的内容，能尽可能减小第三上行子帧用于传输第三反馈信息的开销。
结合第一方面或第一方面的任意一种实现方式，在第一方面的第五种实现方式中，所述终端设备在所述第一上行信道上向所述接入网设备发送所述第一反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
通过执行上述步骤，可以节省第一上行子帧中用于传输第一反馈信息的资源开销，保证数据传输效率。
结合第一方面或第一方面的任意一种实现方式，在第一方面的第六种实现方式中，所述终端设备确定第一下行子帧集合与第一上行子帧相关联，包括：
所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
通过执行上述步骤，可以实现终端设备对第一下行子帧集合的可靠检测，进而可以在第一上行子帧传输正确的第一反馈信息。
结合第一方面的第六种实现方式，在第一方面的第七种实现方式中，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
结合第一方面的第六种实现方式，或第一方面的第七种实现方式，在第一方面的第八种实现方式中，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
结合第一方面的第一种实现方式，在第一方面的第九种实现方式中，所述终端设备确定第二下行子帧集合与第二上行子帧相关联，包括：
所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第二下行子帧集合与第二上行子帧相关联。
通过执行上述步骤，可以实现终端设备对第二下行子帧集合的可靠检测，进而可以在第二上行子帧传输正确的第二反馈信息。
结合第一方面的第三种实现方式，在第一方面的第十种实现方式中，所述终端设备确定第三下行子帧集合与第三上行子帧相关联，包括：
所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第三下行子帧集 合与第三上行子帧相关联。
通过执行上述步骤，可以实现终端设备对第三下行子帧集合的可靠检测，进而可以在第三上行子帧传输正确的第三反馈信息。
第二方面，提供了一种反馈信息的传输方法，所述方法包括：
接入网设备在至少一个下行突发中的下行子帧中向终端设备发送下行数据；
所述接入网设备在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息，所述第一上行子帧与第一下行子帧集合相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一反馈信息与所述第一下行子帧集合中的下行数据所对应，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后。
通过实施第二方面描述的方法，终端设备根据接收到的第一下行子帧集合来确定与之关联的第一上行子帧，从而在第一上行子帧中传送第一下行子帧集合对应的反馈信息，可以满足U-LTE系统中灵活的上下行配置，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息，并且通过在第一上行子帧中承载多个下行数据对应的反馈信息，可以提高传输的资源利用率，避免资源浪费。
结合第二方面，在第二方面的第一种实现方式中，所述方法还包括：
所述接入网设备在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息，所述第二上行子帧与第二下行子帧集合关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二反馈信息与所述第二下行子帧集合中的下行数据所对应，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后。
通过执行上述步骤，相对于现有技术中的只在一个上行子帧反馈与下行被调度的数据相关联的反馈信息，本步骤可以增强反馈信息的传输机会，从而提高反馈信息的传输成功几率。
结合第二方面的第一种实现方式，在第二方面的第二种实现方式中，所述接入网设备在第二上行子帧中的第二上行信道上接收所述终端设备发送的第 二反馈信息之前，还包括：
所述接入网设备向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第二上行子帧相关联的第二下行子帧集合。
通过执行上述步骤，可以根据第一反馈信息传输成功的几率，确定第二反馈信息传输的内容，从而既能保证第一反馈信息的传输，也能尽可能减小第二上行子帧用于传输第二反馈信息的开销。
结合第二方面，在第二方面的第三种实现方式中，所述方法还包括：
所述接入网设备在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息，所述第三上行子帧与第三下行子帧集合关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三反馈信息与所述第三下行子帧集合中的下行数据所对应，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后。
通过执行上述操作，所述至少一个下行突发中包括的下行数据对应的反馈信息除了可以在第一上行子帧反馈，还可以在第三上行子帧反馈，相比于将所述至少一个下行突发中包括的下行数据对应的反馈信息都在第一上行子帧反馈，可以减小第一上行子帧中包括的反馈信息的开销，并且，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的反馈信息的传输。这是因为，如果将所述至少一个下行突发中包括下行数据对应的反馈信息都在第一上行子帧反馈，那么如果终端设备在第一上行子帧没有竞争到免许可频段资源，那么所述至少一个下行突发中包括的下行数据对应的反馈信息都无法传输，在这种情况下，终端设备确定第三上行子帧，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的部分反馈信息的传输。
结合第二方面的第三种实现方式，在第二方面的第四种实现方式中，所述接入网设备在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息之前，还包括：
所述接入网设备向所述终端设备发送重叠码本指示信息，所述重叠码本指 示信息用于所述终端设备确定与所述第三上行子帧相关联的第三下行子帧集合。
通过执行上述操作，可以根据第一反馈信息传输成功的几率，确定第三反馈信息传输的内容，能尽可能减小第三上行子帧用于传输第三反馈信息的开销。
结合第二方面或第二方面的任意一种实现方式，在第二方面的第五种实现方式中，所述接入网设备在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息之前，还包括：
所述接入网设备向所述终端设备发送反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行子帧中的第一上行信道上发送所述第一反馈信息。
通过执行上述步骤，可以节省第一上行子帧中用于传输第一反馈信息的资源开销，保证数据传输效率。
结合第二方面或第二方面的任意一种实现方式，在第二方面的第六种实现方式中，所述方法还包括：
所述接入网设备在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联。
通过执行上述操作，可以实现终端设备对第一下行子帧集合的可靠检测，进而可以在第一上行子帧传输正确的第一反馈信息。
结合第二方面或第二方面的任意一种实现方式，在第二方面的第七种实现方式中，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
结合第二方面或第二方面的第七种实现方式，在第二方面的第八种实现方式中，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
结合第二方面的第一种实现方式，在第二方面的第九种实现方式中，所述方法还包括：
所述接入网设备在所述至少一个下行突发中的每个下行突发中的下行子 帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第二下行子帧集合与所述第二上行子帧相关联。
通过执行上述操作，可以实现终端设备对第二下行子帧集合的可靠检测，进而可以在第二上行子帧传输正确的第二反馈信息。
结合第二方面的第三种实现方式，在第二方面的第十种实现方式中，所述方法还包括：
所述接入网设备在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第三下行子帧集合与所述第三上行子帧相关联。
通过执行上述操作，可以实现终端设备对第二下行子帧集合的可靠检测，进而可以在第三上行子帧传输正确的第三反馈信息。
第三方面，提供了一种终端设备，包括处理器、存储器以及通信模块，其中，所述存储器用于存储反馈信息的传输程序代码，所述处理器用于调用所述反馈信息的传输程序代码来执行如下操作：
所述处理器通过所述通信模块在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；
所述处理器确定第一下行子帧集合与第一上行子帧相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一上行子帧用于发送所述第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后；
所述处理器确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息；
所述处理器在所述第一上行子帧中确定第一上行信道；
所述处理器通过所述通信模块在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
通过执行上述操作，终端设备根据接收到的第一下行子帧集合来确定与之关联的第一上行子帧，从而在第一上行子帧中传送第一下行子帧集合对应的反 馈信息，可以满足U-LTE系统中灵活的上下行配置，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息，并且通过在第一上行子帧中承载多个下行数据对应的反馈信息，可以提高传输的资源利用率，避免资源浪费。
结合第三方面，在第三方面的第一种实现方式中，所述处理器还用于：
所述处理器确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
所述处理器确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
所述处理器在所述第二上行子帧中确定第二上行信道；
所述处理器通过所述通信模块在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
通过执行上述操作，相对于现有技术中的只在一个上行子帧反馈与下行被调度的数据相关联的反馈信息，本步骤可以增强反馈信息的传输机会，从而提高反馈信息的传输成功几率。
结合第三方面的第一种实现方式，在第三方面的第二种实现方式中，所述处理器通过所述通信模块在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，所述处理器还用于：
所述处理器通过所述通信模块接收所述接入网设备发送的重叠码本指示信息；
所述处理器根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
通过执行上述操作，可以根据第一反馈信息传输成功的几率，确定第二反馈信息传输的内容，从而既能保证第一反馈信息的传输，也能尽可能减小第二上行子帧用于传输第二反馈信息的开销。
结合第三方面，在第三方面的第三种实现方式中，所述处理器还用于：
所述处理器确定第三下行子帧集合与第三上行子帧相关联，所述第三下行 子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后；
所述处理器确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
所述处理器在所述第三上行子帧中确定第三上行信道；
所述处理器通过所述通信模块在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
通过执行上述操作，所述至少一个下行突发中包括的下行数据对应的反馈信息除了可以在第一上行子帧反馈，还可以在第三上行子帧反馈，相比于将所述至少一个下行突发中包括的下行数据对应的反馈信息都在第一上行子帧反馈，可以减小第一上行子帧中包括的反馈信息的开销，并且，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的反馈信息的传输。这是因为，如果将所述至少一个下行突发中包括下行数据对应的反馈信息都在第一上行子帧反馈，那么如果终端设备在第一上行子帧没有竞争到免许可频段资源，那么所述至少一个下行突发中包括的下行数据对应的反馈信息都无法传输，在这种情况下，终端设备确定第三上行子帧，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的部分反馈信息的传输。
结合第三方面的第三种实现方式，在第三方面的第四种实现方式中，所述处理器通过所述通信模块在所述第三上行信道上向所述接入网设备发送所述第三反馈信息之前，所述处理器还用于：
所述处理器通过所述通信模块接收所述接入网设备发送的重叠码本指示信息；
所述处理器根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
通过执行上述操作，可以根据第一反馈信息传输成功的几率，确定第三反馈信息传输的内容，能尽可能减小第三上行子帧用于传输第三反馈信息的开销。
结合第三方面或第三方面的任意一种实现方式，在第三方面的第五种实现方式中，所述处理器通过所述通信模块在所述第一上行信道上向所述接入网设备发送所述第一反馈信息之前，所述处理器还用于：
所述处理器通过所述通信模块接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
通过执行上述操作，可以节省第一上行子帧中用于传输第一反馈信息的资源开销，保证数据传输效率。
结合第三方面或第三方面的任意一种实现方式，在第三方面的第六种实现方式中，所述处理器确定第一下行子帧集合与第一上行子帧相关联，包括：
所述处理器根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
通过执行上述操作，可以实现终端设备对第一下行子帧集合的可靠检测，进而可以在第一上行子帧传输正确的第一反馈信息。
结合第三方面的第六种实现方式，在第三方面的第七种实现方式中，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
结合第三方面的第六种实现方式，或第三方面的第七种实现方式，在第三方面的第八种实现方式中，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
结合第三方面的第一种实现方式，在第三方面的第九种实现方式中，所述处理器确定第二下行子帧集合与第二上行子帧相关联，包括：
所述处理器根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第二下行子帧集合与第二上行子帧相关联。
通过执行上述操作，可以实现终端设备对第二下行子帧集合的可靠检测，进而可以在第二上行子帧传输正确的第二反馈信息。
结合第三方面的第三种实现方式，在第三方面的第十种实现方式中，所述 处理器确定第三下行子帧集合与第三上行子帧相关联，包括：
所述处理器根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第三下行子帧集合与第三上行子帧相关联。
通过执行上述操作，可以实现终端设备对第三下行子帧集合的可靠检测，进而可以在第三上行子帧传输正确的第三反馈信息
第四方面，提供了一种接入网设备，包括处理器、存储器以及通信模块，其中，所述存储器用于存储反馈信息的传输程序代码，所述处理器用于调用所述反馈信息的传输程序代码来执行如下操作：
所述处理器通过所述通信模块在至少一个下行突发中的下行子帧中向终端设备发送下行数据；
所述处理器通过所述通信模块在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息，所述第一上行子帧与第一下行子帧集合相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一反馈信息与所述第一下行子帧集合中的下行数据所对应，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后。
通过执行上述操作，终端设备根据接收到的第一下行子帧集合来确定与之关联的第一上行子帧，从而在第一上行子帧中传送第一下行子帧集合对应的反馈信息，可以满足U-LTE系统中灵活的上下行配置，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息，并且通过在第一上行子帧中承载多个下行数据对应的反馈信息，可以提高传输的资源利用率，避免资源浪费。
结合第四方面，在第四方面的第一种实现方式中，所述处理器还用于：
通过所述通信模块在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息，所述第二上行子帧与第二下行子帧集合关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二反馈信息与所述第二下行子帧集合中的下行数据所对应，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后。
通过执行上述操作，相对于现有技术中的只在一个上行子帧反馈与下行被 调度的数据相关联的反馈信息，本步骤可以增强反馈信息的传输机会，从而提高反馈信息的传输成功几率。
结合第四方面的第一种实现方式，在第四方面的第二种实现方式中，所述处理器通过所述通信模块在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息之前，所述处理器还用于：
通过所述通信模块向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第二上行子帧相关联的第二下行子帧集合。
通过执行上述操作，可以根据第一反馈信息传输成功的几率，确定第二反馈信息传输的内容，从而既能保证第一反馈信息的传输，也能尽可能减小第二上行子帧用于传输第二反馈信息的开销。
结合第四方面，在第四方面的第三种实现方式中，所述处理器还用于：
通过所述通信模块在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息，所述第三上行子帧与第三下行子帧集合关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三反馈信息与所述第三下行子帧集合中的下行数据所对应，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后。
通过执行上述操作，所述至少一个下行突发中包括的下行数据对应的反馈信息除了可以在第一上行子帧反馈，还可以在第三上行子帧反馈，相比于将所述至少一个下行突发中包括的下行数据对应的反馈信息都在第一上行子帧反馈，可以减小第一上行子帧中包括的反馈信息的开销，并且，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的反馈信息的传输。这是因为，如果将所述至少一个下行突发中包括下行数据对应的反馈信息都在第一上行子帧反馈，那么如果终端设备在第一上行子帧没有竞争到免许可频段资源，那么所述至少一个下行突发中包括的下行数据对应的反馈信息都无法传输，在这种情况下，终端设备确定第三上行子帧，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的部分反馈信息的传输。
结合第四方面的第三种实现方式，在第四方面的第四种实现方式中，所述处理器通过所述通信模块在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息之前，所述处理器还用于：
通过所述通信模块向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第三上行子帧相关联的第三下行子帧集合。
通过执行上述操作，可以根据第一反馈信息传输成功的几率，确定第三反馈信息传输的内容，能尽可能减小第三上行子帧用于传输第三反馈信息的开销。
结合第四方面或第四方面的任意一种实现方式，在第四方面的第五种实现方式中，所述处理器通过所述通信模块在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息之前，所述处理器还用于：
通过所述通信模块向所述终端设备发送反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行子帧中的第一上行信道上发送所述第一反馈信息。
通过执行上述操作，可以节省第一上行子帧中用于传输第一反馈信息的资源开销，保证数据传输效率。
结合第四方面或第四方面的任意一种实现方式，在第四方面的第六种实现方式中，所述处理器还用于：
通过所述通信模块在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联。
通过执行上述操作，可以实现终端设备对第一下行子帧集合的可靠检测，进而可以在第一上行子帧传输正确的第一反馈信息。
结合第四方面的第六种实现方式，在第四方面的第七种实现方式中，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
结合第四方面的第六种实现方式，或第四方面的第七种实现方式，在第四方面的第八种实现方式中，所述下行子帧配置指示信息用于指示所述下行子帧 配置指示信息所在的下行突发中的下行子帧数量。
结合第四方面的第一种实现方式，在第四方面的第九种实现方式中，所述处理器还用于：
通过所述通信模块在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第二下行子帧集合与所述第二上行子帧相关联。
通过执行上述操作，可以实现终端设备对第二下行子帧集合的可靠检测，进而可以在第二上行子帧传输正确的第二反馈信息。
结合第四方面的第三种实现方式，在第四方面的第十种实现方式中，所述处理器还用于：
通过所述通信模块在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第三下行子帧集合与所述第三上行子帧相关联。
通过执行上述操作，可以实现终端设备对第二下行子帧集合的可靠检测，进而可以在第三上行子帧传输正确的第三反馈信息。
第五方面，提供了一种终端设备，所述终端设备包括用于执行上述第一方面或第一方面任意一种实现方式所描述的反馈信息的传输方法的模块或单元。
第六方面，提供了一种接入网设备，所述接入网设备包括用于执行上述第二方面或第二方面任意一种实现方式所描述的反馈信息的传输方法的模块或单元。
第七方面，提供了一种通信系统，所述通信系统包括第三方面或第五方面所述的终端设备以及第四方面或第六方面所述的接入网设备。
第八方面，提供了一种计算机可读存储介质，所述可读存储介质上存储有实现第一方面或第一方面任意一种实现方式所描述的反馈信息的传输方法的程序代码，该程序代码包含运行上述反馈信息的传输方法的执行指令。
第九方面，提供了一种计算机可读存储介质，所述可读存储介质上存储有实现第二方面或第二方面任意一种实现方式所描述的反馈信息的传输方法的 程序代码，该程序代码包含运行上述反馈信息的传输方法的执行指令。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。
图1A是LTE系统中不同的TDD上下行配置示意图；
图1B是LTE TDD系统中PDSCH与其对应的ACK/NACK的时序关系示意图；
图2是本发明实施例涉及的通信系统的示意图；
图3是本发明实施例提供的一种反馈信息的传输方法的流程示意图；
图4A是本发明实施例提供的一种下行突发的结构示意图；
图4B是本发明实施例提供的另一种下行突发的结构示意图；
图4C是本发明实施例提供的一种上行突发的结构示意图；
图4D是本发明实施例提供的另一种上行突发的结构示意图；
图4E是本发明实施例提供的另一种上行突发的结构示意图；
图4F是本发明实施例提供的另一种上行突发的结构示意图；
图4G是本发明实施例提供的一种第一上行突发的结构示意图；
图4H是本发明实施例提供的另一种第一上行突发的结构示意图；
图4I是本发明实施例提供的一种第一下行子帧集合与第二下行子帧集合的关系示意图；
图4J是本发明实施例提供的另一种第一下行子帧集合与第二下行子帧集合的关系示意图；
图4K是本发明实施例提供的另一种第一下行子帧集合与第二下行子帧集合的关系示意图；
图4L是本发明实施例提供的另一种第一下行子帧集合与第二下行子帧集合的关系示意图；
图4M是本发明实施例提供的一种第一上行子帧与第二上行子帧的位置关系示意图；
图4N是本发明实施例提供的另一种第一上行子帧与第二上行子帧的位置 关系示意图；
图4O是本发明实施例提供的一种第三下行子帧集合与第三上行子帧的关联关系示意图；
图4P是本发明实施例提供的一种下行子帧集合与上行子帧的关联关系示意图；
图4Q是本发明实施例提供的另一种下行子帧集合与上行子帧的关联关系示意图；
图5是本发明实施例提供的一种终端设备的结构示意图；
图6是本发明实施例提供的一种接入网设备的结构示意图；
图7是本发明实施例提供的另一种终端设备的结构示意图；
图8是本发明实施例提供的另一种接入网设备的结构示意图。
具体实施方式
本发明的实施方式部分使用的术语仅用于对本发明的具体实施例进行解释，而非旨在限定本发明。下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述。
参见图2，图2示出了本发明实施例涉及的通信系统，其中，本发明实施例中的接入网设备和终端设备可以工作在非授权频谱上。接入网设备与终端设备通过某种空口技术相互通信。所述空口技术可包括：现有的2G(如全球移动通信系统(英文：Global System for Mobile Communications，GSM))、3G(如通用移动通信系统(英文：Universal Mobile Telecommunications System，UMTS)、宽带码分多址(英文：Wideband Code Division Multiple Access，WCDMA)、时分同步码分多址(英文：Time Division-Synchronous Code Division Multiple Access，TD-SCDMA))、4G(如FDD LTE、TDD LTE)以及未来即将面市的4.5G、5G系统等。
终端设备还可以包括中继(英文：Relay)，和基站可以进行数据通信的都可以看为终端设备，本发明中将以一般意义上的用户设备(英文：User Equipment，UE)来介绍。此外，终端设备也可以称为移动台、接入终端、用户单元、用户站、移动站、远方站、远程终端、移动设备、用户终端、终端、 无线通信设备、用户代理或用户装置等。终端设备可以是无线局域网(英文：Wireless Local Area Networks，WLAN)中的站点(英文：Staion，ST)，可以是蜂窝电话、无绳电话、会话启动协议(英文：Session Initiation Protocol，SIP)电话、无线本地环路(英文：Wireless Local Loop，WLL)站、个人数字处理(英文：Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及未来5G网络中的移动台或者未来演进的公共陆地移动网(英文：Public Land Mobile Network，PLMN)网络中的终端设备等。
接入网设备可以是用于与终端设备进行通信的设备，接入网设备可以是WLAN中的接入点(英文：Access Point，AP)，GSM或CDMA中的基站(英文：Base Transceiver Station，BTS)，也可以是WCDMA中的基站(英文：NodeB，NB)，还可以是LTE中的演进型基站(英文：evolved Node B，eNB)，或者中继站或接入点，或者车载设备、可穿戴设备以及未来5G网络中的接入网设备或者未来演进的PLMN网络中的接入网设备等。
以下各实施例中提到的小区可以是基站对应的小区，小区可以属于宏基站，也可以属于小小区(英文：Small cell)对应的基站，这里的小小区可以包括：城市小区(英文：Metro cell)、微小区(英文：Micro cell)、微微小区(英文：Pico cell)、毫微微小区(英文：Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
本发明用于无线通信系统，尤其用于授权频段辅助接入的LTE(英文：Licensed-Assisted Access LTE，LAA-LTE)系统。LAA-LTE系统是指将授权频段和非授权频谱通过载波聚合(英文：Carrier Aggregation，CA)或者非CA的方式(例如双链接(英文：Dual Connectivity，DC))在一起使用的LTE系统。具体的：
主流部署场景是将授权频段和非授权频谱通过CA联合使用的场景，即将授权频段(也可以称为许可频段)包括的载波或工作在授权频段上的小区作为主小区，将非授权频谱(也可以称为非许可频谱)包括的载波或工作在非授权频谱上的小区作为辅小区，其中主小区和辅小区可以共站部署，也可以是非共站部署，两个小区之间有理想的回传路径。
但本发明也不限于上述CA的场景，其他部署场景，还包括两个小区(主小区和辅小区)之间没有理想回传路径的场景，比如回传延迟较大，导致两个小区之间无法快速的协调信息。例如DC场景。
此外，还可以考虑独立部署的工作在非授权频谱上的小区，即此时工作在非授权频谱上的服务小区直接可以提供独立接入功能，不需要通过工作在授权频段上小区的辅助，例如独立的非授权长期演进(英文：Standalone LTE over unlicensed spectrum，Standalone U-LTE)系统。
在本发明实施例中，需要说明一下，LTE系统中的载波与服务小区的概念是等同的，例如终端设备接入一个载波和接入一个服务小区是等同的。在本发明实施例中，统一以服务小区的概念来介绍。
请参见图3，是本发明实施例提供的一种反馈信息的传输方法的流程示意图，该方法包括但不限于以下步骤。
S301、终端设备在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据。
本发明实施例中，一个下行突发(英文：Downlink Burst，DL Burst)是指在时间上连续占用的多个下行子帧。例如，基站(例如eNB)或基站下的小区(英文：Cell)在抢占到非授权频谱资源之后，不需要再通过竞争机制(例如LBT)而利用该非授权频谱资源进行的数据传输。一个下行突发的时间长度不大于该基站(或该小区)在该非授权频谱资源上不需要再通过竞争机制而可以连续传输的最大时间，该最大时间也可以称为最大信道占用时间(英文：Maximum Channel Occupied Time，MCOT)。MCOT可以与地域法规约束有关，例如在日本，MCOT可以等于4ms，在欧洲，MCOT可以等于8ms，或者10ms，或者13ms；MCOT也可以与侦听设备(例如基站、用户设备)采用的竞争机制有关，一般而言，侦听时间越短，MCOT就越短；MCOT的长度还可以与数据传输的业务等级有关，例如以互联网电话业务为例，该业务优先级较高，则一般MCOT可以为2ms，因此基站在竞争到非授权频谱资源之后，可以连续占用2毫秒；以数传业务为例，该业务优先级较低，则一般可以连续占用8或10毫秒。
需要说明的是，在上述描述中，不需要再通过竞争机制可以包括：基站或小区在抢占到非授权频谱资源之后，在该非授权频谱资源上实际发送数据的时间内或在MCOT内，不需要再通过竞争机制评估该非授权频谱资源是否可用。例如，如图4A所示，在图4A中，DL Burst为：从第二个子帧开始，该基站不需要再通过竞争机制评估该非授权频谱资源是否可用。图4A中，DL burst可以连续占用4个下行子帧，其中最后一个下行子帧用于下行数据传输的时间长度小于1个下行子帧的时间长度。
或者，不需要再通过竞争机制还可以包括：基站或小区在抢占到非授权频谱资源之后，在该非授权频谱资源上实际发送数据的时间内或在MCOT内，可以不需要考虑与异系统的共存而采用竞争机制，但是可以考虑与同系统的共存而采用竞争机制，这里，为了同系统的共存而采用的竞争机制，可以包括在抢占到非授权频谱资源之后，在发送数据的时间或MCOT内，可以包括特定的时间单位(或称空闲的时间单位)，在此特定的时间单位内，基站或小区可以停止数据传输(或可以停止发送数据)，在此特定的时间单位内，基站或小区可以进行信道侦听来重新评测该非授权频谱资源是否可用，也可以不进行信道侦听而在特定的时间单位内，继续在发送数据的时间内或MCOT内发送数据，如图4B所示。在图4B中，从DL Burst开始到结束的时间范围内，基站可以在任意时间位置停止发送数据一段时间(对应图4B中空闲的时间单位)，以便于同系统的其他设备可以和该基站在该非授权频谱资源上实现资源复用。这里，对于LTE系统而言，非LTE系统可以看为异系统，例如WLAN系统，或者采用WiFi技术的系统；LTE系统可以看为同系统，无论是属于相同运营商的LTE系统还是属于不同运营商的LTE系统，都可以看为同系统。
相应地，本发明实施例中，上行突发(英文：Uplink Burst，UL burst)是指在时间上连续占用的多个上行子帧。可选地，这多个上行子帧中可以包括用于其他终端设备进行CCA的时间区域(如图4C所示的空闲的时间单位，该空闲的时间单位至少可以用于其他终端设备进行CCA)，也可以不包括用于其他终端设备进行CCA的时间区域(如图4D所示)。
可选地，上行突发可以包括：例如终端设备在抢占到非授权频谱资源之后，不需要再通过竞争机制(例如LBT)而利用该非授权频谱资源进行的数据传 输，一个上行突发的时间长度不大于该终端设备在该非授权频谱资源上的MCOT，这里也不排除对上行突发的时间长度有其他限定；或者，上行突发还可以包括两个相邻的下行突发之间包括的在时间上连续占用的多个上行子帧；或者，上行突发还可以包括：基站在竞争到非授权频谱资源之后，在其MCOT内包括的在时间上连续占用的多个上行子帧，例如图4E所示；或者，基站在抢占到非授权频谱资源之后，在该基站不需要通过竞争机制利用该非授权频谱进行数据传输的时间范围内或者在一个下行突发的时间内，基于特定的时间延迟(例如基于4ms的时间延迟)，从可以调度到的第一个上行子帧到可以调度到的最后一个上行子帧之间终端设备进行的数据传输，如图4F所示，相应地，从第一个上行子帧到最后一个上行子帧之间的时间范围(图4F中，为4个子帧)，为该UL burst对应的时间范围。
结合上述上行突发、下行突发的描述，在本发明实施例中，非授权频谱上的上下行子帧配置可以是灵活的，可以理解为：例如，在U-LTE系统的一次突发传输可以包括连续N个下行子帧，跟着一个特殊子帧，其中该特殊子帧中用于下行信息或下行数据传输的时间长度小于1个子帧的时间长度。例如如果一个子帧的时间长度为1ms，那么该特殊子帧中用于下行信息或下行数据传输的时间长度小于1ms；或者没有特殊子帧而只有一个保护间隔(英文：Guard Period，GP)，然后跟着M个上行子帧，N和M是基站每次突发传输时灵活选取的。其中，一次突发传输又可以称为一次传输机会(英文：Transmission Opportunity，TxOP)。
本发明实施例中，子帧的时间长度为1毫秒。一个子帧对于正常循环前缀(英文：Normal Cyclic Prefix，NCP)情况包括14个正交频分复用(英文：Orthogonal Frequency Division Multiplexing，OFDM)符号，对于扩展循环前缀(英文：Extended Cyclic Prefix，ECP)情况包括12个OFDM符号。当然也不排除将来继续演进的LTE系统或其他无线系统采用更短的子帧，比如将来的子帧的时间长度与当前的一个OFDM符号的时间长度相当。需要说明一下，本发明实施例中，一个时间长度为N个OFDM符号的子帧与一个时间长度为N个OFDM符号的传输时间间隔(英文：Transmission Time Interval，TTI)表达的含义可以一致。对于正常循环前缀情况，N可以不大于14，对于扩展循 环前缀，N可以不大于12。
本发明实施例中，下行子帧是包括接入网设备发送给终端设备的数据或信息的子帧，一个下行子帧中用于下行数据传输或下行信息传输的时间长度可以等于一个下行子帧的时间长度，也可以小于一个下行子帧的时间长度；上行子帧是包括终端设备发送给接入网设备的数据或信息的子帧，一个上行子帧中用于上行数据传输或上行信息传输的时间长度可以等于一个上行子帧的时间长度，也可以小于一个上行子帧的时间长度。
具体的，终端设备在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据具体可以包括如下步骤：
步骤1：终端设备检测下行控制信道。
终端设备可能会在至少一个下行突发中的每个下行子帧中都检测到下行控制信道，也可能在至少一个下行突发中的一部分下行子帧中都检测到下行控制信道，也可能在第一下行子帧集合中的每个下行子帧都检测到下行控制信道，也可能在第一下行子帧集合中的一部分下行子帧检测到下行控制信道，其中所述第一下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合包括所述至少一个下行突发中的至少一个下行子帧。这里的下行控制信道可以至少包括：物理下行控制信道(英文：Physical Downlink Control Channel，PDCCH)或增强型物理下行控制信道(英文：Enhanced Physical Downlink Control Channel，EPDCCH)。
步骤2：终端设备在检测到的下行控制信道调度的下行数据信道中接收下行数据，该下行数据信道在LTE系统中，可以称为PDSCH，该下行数据信道承载了下行数据。
其中下行控制信道与其调度的下行数据信道一般在同一个下行子帧中，当然也不排除在不同的下行子帧中。
S302、所述终端设备确定第一下行子帧集合与第一上行子帧相关联。
本发明实施例中，终端设备在下行数据信道中接收下行数据之后，需要反馈这些下行数据对应的ACK或NACK，这样可以保证下行数据传输效率，其中，所述第一上行子帧用于发送所述至少一个下行突发包括的第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中， 所述第一下行子帧集合包括所述至少一个下行突发中的一个下行子帧，也可以所述至少一个下行突发中的多个下行子帧，本发明实施例不作具体限定。其中，每个下行数据信道中的下行数据分别对应一份ACK或NACK，当然也不排除多个下行数据信道中分别承载的多份下行数据对应一份ACK或NACK。本发明以每个下行数据信道中的下行数据分别对应一份ACK或NACK这种情况为例进行描述。
考虑到第一上行子帧在第一上行突发中，而该第一上行子帧中发送的反馈信息是对应之前在第一下行子帧集合中接收到的下行数据的，因此所述第一上行突发一定在至少一个下行突发之后。例如，如图4G所示，包括所述第一上行子帧的上行突发可以紧跟着一个下行突发；当下行突发个数大于1时，包括所述第一上行子帧的上行突发可以紧跟着最后一个下行突发。又例如，包括所述第一上行子帧的上行突发与第一下行子帧集合所属于的至少一个下行突发之间还可以包括其他下行突发和/或上行突发，如图4H所示。这些情况本发明并不做具体限定。
本发明实施例中，关联的含义可以理解为所述第一下行子帧集合中的部分或全部下行子帧中的下行数据对应的反馈信息需要在第一上行子帧中进行发送。优选地，在本发明实施例中，关联的含义可以理解为所述第一下行子帧集合中包括的全部下行子帧的下行数据对应的反馈信息需要在第一上行子帧中进行发送，这样做的好处在于，不需要额外的指示信息，辅助终端设备确定第一下行子帧集合中包括的具体哪些下行子帧的下行数据对应的反馈信息需要在第一上行子帧中进行反馈。关联的含义也可以理解为所述第一下行子帧集合中的部分或全部下行子帧对应的反馈信息需要在第一上行子帧进行发送。优选地，在本发明实施例中，关联的含义可以理解为所述第一下行子帧集合中的全部下行子帧对应的反馈信息需要在第一上行子帧进行发送。例如，结合图1B来说，以TDD上下行配置2为例，上行子帧2所关联的下行子帧为配置给终端设备的N个载波中的下行子帧4、5、6、8，因此下行子帧4、5、6、8与上行子帧2相关联，下行子帧4、5、6、8中的下行数据对应的反馈信息需要在上行子帧2中进行发送。其中对于单载波而言，N为1，对于多载波例如CA模式下，N取决于为终端设备配置的载波个数，例如N可以为5。
这里，如果第一下行子帧集合中的下行子帧不包括该终端设备的下行数据，则该下行子帧对应的反馈信息可以用NACK或者不连续发送(英文：Discontinuity Transmission，DTX)来表示。可选的，这种关联关系可以是预配置的，比如由预设的HARQ定时关系来确定，该HARQ定时关系可以为：下行数据所在子帧与发送该下行数据对应的反馈信息的子帧之间的间隔不小于某阈值，在当前LTE系统中，该阈值为4，即UE在子帧n接收到下行数据则最早可以在子帧n+4进行该下行数据的反馈信息的发送，其他阈值的取值也不排除；可选的，这种关联关系也可以由接入网设备确定后再通知UE，比如通过公共信令或UE特定的信令来进行通知，本发明实施例中不做具体限定。
例如，终端设备可以通过信令指示或者预配置的方式，确定第一上行子帧，然后再根据预设的HARQ定时关系确定第一下行子帧集合。亦或者，终端设备可以通过信令指示或者预配置的方式，确定第一下行子帧集合，然后再根据预设的HARQ定时关系，确定第一上行子帧。需要说明的是，这里预设的HARQ定时关系，也可以看为关联的一种形式。更为一般地，在本步骤中，终端设备可以通过确定的第一上行子帧和所述关联关系，确定第一下行子帧集合，或者终端设备可以通过确定的第一下行子帧集合和所述关联关系，确定第一上行子帧。
例如，第一上行子帧为跟在至少一个下行突发之后的第一个上行突发的第一个上行子帧；又例如，如果终端设备在第一下行子帧集合中的下行子帧接收到上行调度指示信息，则该上行调度指示信息对应的上行数据所在的子帧也可以是第一上行子帧。进一步地，如果该终端设备在第一下行子帧集合中的一个下行子帧接收到的上行调度指示信息，且该上行调度指示信息指示该终端设备在至少2个上行子帧传输上行数据，那么至少2个上行子帧中的第一个可以是第一上行子帧，当然也不排除至少2个上行子帧中的其他上行子帧也可以为第一上行子帧；又例如，终端设备在一个下行突发中的多个下行子帧中接收到被调度的下行数据，则最后一个被调度的下行数据所在的下行子帧，按照HARQ定时关系，确定的上行子帧为第一上行子帧；又例如，终端设备在第一下行子帧集合中的多个下行子帧接收到被调度的下行数据，则最后一个被调度的下行数据所在的下行子帧，按照HARQ定时关系，确定的上行子帧为第一上行子 帧；又例如，第一下行子帧集合中包括的最后一个下行子帧，按照HARQ定时关系，确定的上行子帧为第一上行子帧。又例如：终端设备可以根据下行突发或第一下行子帧集合中包括的承载下行调度指示信息(例如DL grant)的下行子帧与HARQ定时关系，确定第一上行子帧；又例如：终端设备可以根据下行突发或第一下行子帧集合中包括的承载上行调度指示信息(例如UL grant)的下行子帧与HARQ定时关系，确定第一上行子帧。这里的DL grant和/或UL grant可以承载在下行控制信息(英文：Downlink Control Information，DCI)中。这些情况本发明并不做具体限定。
又例如：终端设备根据上行调度指示信息，确定第一上行子帧，然后根据HARQ定时关系，确定第一上行子帧对应的第一下行子帧集合。一种可选的方式是：如果终端设备在子帧n收到UL grant信息，则终端设备可以确定在子帧n+4包括该UL grant信息调度的上行数据信道，并且该终端设备可以在该上行数据信道传输上行数据。终端设备可以将子帧n+4确定为第一上行子帧，然后根据HARQ定时关系，将子帧n+4之前且与子帧n+4之间的时间延迟不小于4ms的下行突发中包括的下行子帧都作为第一下行子帧集合中包括的下行子帧。进一步地，可以只将子帧n所在的下行突发中与上行子帧n+4满足HARQ定时关系的下行子帧都作为第一下行子帧集合中的下行子帧。或者，除了可以将子帧n所在的下行突发中与上行子帧n+4满足HARQ定时关系的下行子帧都作为第一下行子帧集合中的下行子帧之外，还可以将子帧n所在的下行突发之前的下行突发中还没有反馈HARQ-ACK的下行数据所在的下行子帧也作为第一下行子帧集合中的下行子帧。在本发明实施例中，HARQ-ACK包括ACK或NACK。可选地，当采用信令指示的方式，确定第一上行子帧和/或第一下行子帧集合时，所述终端设备可以在所述至少一个下行突发中的任意一个或多个下行突发中的任意一个或多个下行子帧接收到所述信令；或者，所述终端设备可以在所述至少一个下行突发中的的任意一个或多个下行突发中的倒数第二和/或倒数第一个下行子帧中接收到所述信令；或者，所述终端设备可以在所述至少一个下行突发中的最后一个下行突发的任意一个或多个下行子帧中接收到所述信令；或者，所述终端设备可以在所述至少一个下行突发中的最后一个下行突发的倒数第二和/或倒数第一个下行子帧中接收到所述信令。进一 步可选地，所述信令可以为公共控制信令，可选地，该公共控制信令还可以用于指示下行突发的结束时刻，优选地，所述公共控制信令可以指示包括该公共控制信令在内的下行突发的结束时刻。
需要说明一下，通过信令指示或者预配置的方法，同样可以应用在终端设备确定下述第二上行子帧和/或第二下行子帧集合；也可以应用在终端设备确定下述第三上行子帧和/或第三下行子帧集合。
S303、所述终端设备确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息。
具体的，第一反馈信息可以用ACK或NACK表示，还可以用DTX表示。
本发明实施例中，第一下行子帧集合中的下行数据所对应的第一反馈信息，可以包括第一下行子帧集合中的所有下行子帧所对应的反馈信息，对于终端设备而言，如果第一下行子帧集合中只有部分下行子帧包括调度给该终端设备的下行数据，例如通过(E)PDCCH调度PDSCH，那么对于未调度的下行子帧，其所对应的反馈信息可以用NACK表示，对于第一下行子帧集合中包括调度给该终端设备的下行数据的下行子帧而言，其所对应的反馈信息可以用ACK或NACK来表示；或者，第一下行子帧集合中的下行数据所对应的第一反馈信息，对于终端设备而言，可以包括第一下行子帧集合中所有被调度的下行子帧所对应的第一反馈信息。
以单载波或CA模式下的物理上行控制信道(英文：Physical Uplink Control Channel，PUCCH)发送模式包括的码本复用模式为例，说明在本发明实施例中，第一反馈信息码本的含义。单载波或CA模式下的PUCCH发送模式包括多种，比如绑定模式、信道选择模式和码本复用模式等，其中，码本复用模式较为常用。以当前网络中主流部署的TDD上下行配置2为例来阐述码本复用模式，参见图1B，一个载波的上行子帧2可以支持4个ACK或NACK比特的反馈(这里，假设上行子帧2所关联的下行子帧调度的下行数据对应的是一个传输块(英文：Transmission Block，TB)，或者对应的是一个下行码字的传输)，5个载波的TDD上下行配置2的CA可以支持20个ACK或NACK比特的反馈，此时可以看作此上行子帧2所关联的下行子帧集合为上述配置给该UE的5个载波中的下行子帧4、5、6和8，在码本复用模式下，上行子帧2 中需要反馈的ACK或NACK的码本生成是基于该上行子帧2所关联的下行子帧集合来确定的，该ACK或NACK的码本就是编码前的ACK或NACK的原始比特按照一定的顺序进行排列的比特流，在这里，ACK或NACK的原始比特按照一定的顺序进行排列的比特流，可以看为本发明实施例中的反馈信息码本。该例中与反馈信息ACK或NACK对应的码本大小为20个比特，具体的排序可以是先子帧后载波的顺序，即先排列载波1的子帧4、5、6和8对应的ACK或NACK比特，再排列载波2的子帧4、5、6和8对应的ACK或NACK比特，按照上述方式继续排列剩余载波的子帧对应的ACK或NACK比特。特别的，对于未调度的下行子帧，或对于UE未接收到下行数据的下行子帧对应的ACK或NACK比特位置需进行填充NACK信息。
进一步地，终端设备确定第一反馈信息码本之后，可以确定第一反馈信息。例如，在终端设备确定了反馈信息的码本之后，该终端设备需根据该码本进行信道编码，”。信道编码的类型可以为线性块编码、卷积码或Turbo码等，本发明不限定信道编码的类型。如果采用现行块编码，比如里德穆勒码，一般不需在编码前添加循环冗余校验(英文：Cyclical Redundancy Check，CRC)，而如果采用卷积码或Turbo码，则终端设备可以在编码前为反馈信息的码本添加CRC比特。终端设备根据第一反馈信息码本确定第一反馈信息，除了可以包括信道编码，还可以包括数据调制和数据映射。
S304、所述终端设备在所述第一上行子帧中确定第一上行信道。
本发明实施例中，第一上行信道可以是PUCCH，也可以是物理上行共享信道(英文：Physical Uplink Shared Channel，PUSCH)。终端设备在发送所述第一反馈信息之前，还包括确定在第一上行子帧中用于发送所述第一反馈信息的资源，比如，终端设备接收接入网设备发送的高层信令，比如无线资源控制(英文：Radio Resource Control，RRC)信令，从RRC信令中获取接入网设备为终端设备配置的PUCCH资源集合，该PUCCH资源集合中包括至少一个PUCCH资源。PUCCH资源集合中的PUCCH可以具有相同的格式，也可以包括至少两种PUCCH格式。然后，终端设备获取资源集合后，会接收到接入网设备发送的资源指示信息。最后，根据资源指示信息从PUCCH资源集合中确定用于承载反馈信息的物理资源。需要注意的是，上述只是一种资源指示的方 式，其他具体方式都不做限定。
需要说明的是，步骤S303和步骤S304的执行顺序不进行限定，终端设备可以先得到第一反馈信息，再确定第一上行信道，也可以先确定第一上行信道，再得到第一反馈信息。
S305、所述终端设备在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
作为一种可选的实施方式，所述方法还包括：
所述终端设备确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
所述终端设备确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
所述终端设备在所述第二上行子帧中确定第二上行信道；
所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
可选地，终端设备确定第二下行子帧集合、第二上行子帧、以及关联关系的方法可以如前所述，也可以采用其他方式确定，在此不做具体限定。
在本发明实施例中，可选地，第一下行子帧集合、第二下行子帧集合之间的关系，以及第一上行子帧与第二上行子帧的关系可以如图4I-图4L所示。
在本发明实施例中，子集包括全集和真子集。具体的，如图4I和图4J所示，第一下行子帧集合与第二下行子帧集合相同，即此时子集就相当于全集；也可以如图4K和图4L所示，第一下行子帧集合为第二下行子帧集合的真子集。
图4I中，第一下行子帧集合与第二下行子帧集合相同，第二上行子帧可以是与所述第一上行子帧在相同上行突发中且在第一上行子帧之后的任意一个上行子帧。相当于，与第一下行子帧集合相关联的上行子帧可以有多个。这样做的好处在于，即使终端设备在第一上行子帧没有竞争到非授权信道使用机 会，也可以在第二上行子帧继续判断是否可以竞争到非授权频谱资源，如果可以竞争到，则可以继续反馈与第一下行子帧集合相关联的反馈信息。与现有技术，只在一个上行子帧反馈与下行被调度的数据相关联的反馈信息相比，可以增强反馈信息的传输机会，从而提高反馈信息的传输成功几率，这尤其适用于基于竞争的工作在非授权频谱上的系统。
此外，采用本发明实施例中，即使终端设备在第一上行子帧竞争到非授权信道使用机会，保证了与第一下行子帧集合相关联的反馈信息的传输，终端设备也可以在第二上行子帧发送的第二反馈信息中包括第一反馈信息。这样做的好处在于，相比于如下技术A，可以保证接入网设备与终端设备对第一上行子帧之后的其他上行子帧传输的反馈信息有一致理解。技术A描述如下：终端设备确定至少2个上行子帧用于传输针对下行数据的反馈信息，并且假设至少2个上行子帧中的第一个上行子帧用于传输下行子帧标号为1/2/3的下行子帧对应的反馈信息，至少2个上行子帧中的另外一个上行子帧用于传输下行子帧标号为4的下行子帧对应的反馈信息，如果该终端设备在该第一个上行子帧没有竞争到非授权频谱资源，那么该终端设备在该第一个上行子帧无法传输下行子帧标号为1/2/3的下行子帧对应的反馈信息，在这种情况下，现有技术A的做法是，如果该终端设备在另外一个上行子帧竞争到非授权频谱资源，则该终端设备在另外一个上行子帧中传输下行子帧标号为1/2/3/4的下行子帧对应的反馈信息；另一方面，如果该终端设备在该第一个上行子帧竞争到非授权频谱资源，则该终端设备仍然在该第一个上行子帧传输下行子帧标号为1/2/3的下行子帧对应的反馈信息，而在另外一个上行子帧中只传输下行子帧标号为4的下行子帧对应的反馈信息。可以观察到，技术A的核心在于，确定的至少2个上行子帧中除该第一个上行子帧外的其他上行子帧传输的反馈信息与第一个上行子帧是否竞争到非授权频谱资源有关。这样就需要接入网设备首先确定终端设备是否在该第一个上行子帧竞争到非授权频谱资源，然后才能确定终端设备在其他上行子帧传输的反馈信息对应的是哪些下行子帧的反馈信息。一种方法是，接入网设备可以通过不连续发送(英文：Discontinuous Transmission，DTX)检测，确定该终端设备是否在该第一个上行子帧竞争到非授权频谱资源，例如，接入网设备可以通过检测该第一个上行子帧是否包括上行解调参考信号 (英文：Demodulation Reference Signal，DMRS)，确定终端设备在该第一个上行子帧是否竞争到非授权频谱资源。但是考虑到非授权频谱上可能存在的隐藏节点(英文：Hidden Node)造成的干扰，会使得接入网设备通过检测DMRS的有无，确定终端设备是否在该第一个上行子帧竞争到非授权频谱资源的检测性能不可靠。例如终端设备在该第一个上行子帧竞争到了非授权频谱资源，传输了下行子帧标号为1/2/3的下行子帧对应的反馈信息，在该第一个上行子帧之后的其他上行子帧，只传输子帧标号为4的下行子帧对应的反馈信息。但是由于隐藏节点引入的干扰，会导致接入网设备没有检测到该第一个上行子帧中包括的DMRS，从而使得接入网设备误认为该终端设备会在该第一个上行子帧之后的其他上行子帧反馈下行子帧标号为1/2/3/4的下行子帧对应的反馈信息，进而导致接入网设备与终端设备对该第一个上行子帧之后的其他上行子帧承载的反馈信息判断出错，进而导致数据解调失败。需要说明的是，这里也不排除引起接入网设备检测性能不可靠的原因除了隐藏节点，还可以包括其他因素，也不排除接入网设备除了通过盲检测DMRS的有无，还可以通过其他检测方式确定终端设备在该第一个上行子帧竞争到非授权频谱资源。而采用本发明实施例的方法，无论终端设备在第一上行子帧(可以理解为“现有技术A中的第一个上行子帧)是否竞争到非授权频谱资源，第二上行子帧(可以理解为“现有技术A中的其他上行子帧”)中传输的反馈信息都包括第一上行子帧传输的反馈信息，这样可以保证接入网设备与终端设备对第二上行子帧中传输的反馈信息有一致的理解，保证了反馈信息的可靠传输。
图4J与图4I的区别在于，对于终端设备而言，第一上行子帧只反馈第一下行子帧集合中的部分下行子帧所关联的反馈信息，例如，部分下行子帧可以是包括该终端设备被调度的PDSCH的下行子帧。同样的，第二上行子帧也可以只反馈第二下行子帧集合中的部分下行子帧所关联的反馈信息。例如，图4J中，第一上行子帧包括的反馈信息，可以是针对子帧标号为2/3/4/6的下行子帧，而图4I中，第一上行子帧包括的反馈信息，可以是针对子帧标号为1/2/3/4/5/6的下行子帧。
图4K中，第一下行子帧集合为第二下行子帧集合的真子集。第二上行子帧可以是与所述第一上行子帧在相同上行突发中且在第一上行子帧之后的任 意一个上行子帧。
图4L与图4K的区别在于，第一上行子帧只反馈第一下行子帧集合中的部分下行子帧所关联的反馈信息，同样的，第二上行子帧也可以只反馈第二下行子帧集合中的部分下行子帧所关联的反馈信息。
需要说明的是，在本发明实施例中，第一上行子帧与第一下行子帧集合中的部分还是全部下行子帧相关联，第二上行子帧与第二下行子帧集合中的部分还是全部下行子帧相关联，可以是独立的配置，也可以是相同的配置。优选地，第一上行子帧与第一下行子帧集合中的全部下行子帧相关联，也就是说，无论第一下行子帧集合中包括的全部下行子帧是否都包括调度给该终端设备的PDSCH，第一上行子帧都可以包括第一下行子帧集合中所有下行子帧对应的HARQ-ACK。优选地，第二上行子帧与第二下行子帧集合中的全部下行子帧相关联，也就是说，无论第二下行子帧集合中包括的全部下行子帧是否都包括调度给该终端设备的PDSCH，第二上行子帧都可以包括第二下行子帧集合中所有下行子帧对应的HARQ-ACK。
可选地，在本发明实施例中，第二上行子帧为第一上行子帧所在的上行突发中的最后一个上行子帧。这样做的好处在于，可以为第二反馈信息的发送提供更多的传输机会。例如，对于终端设备而言，即使在包括第一上行子帧的上行突发中从第一个上行子帧到倒数第二个上行子帧都没有竞争到非授权频谱资源，该终端设备仍然可以在该上行突发中的最后一个上行子帧之前确定非授权频谱资源是否可以使用。
或者，可选地，在本发明实施例中，第二上行子帧为第一上行子帧所在的上行突发中的倒数第二个上行子帧。这样做的好处在于，除了可以为第二反馈信息的发送提供较多的传输机会，还可以保证第二反馈信息的传输。这是因为，在某些情况下，第一上行子帧所在的上行突发之后可能紧跟着一个下行突发，如图4M所示。在这种情况下，第一上行子帧所在的上行突发包括的最后一个上行子帧用于上行数据或信息传输的时间长度可能小于一个上行子帧的长度，这样，可以为后续的下行突发预留侦听位置，在这种情况下，为了保证第二反馈信息的传输，第二上行子帧可以是第一上行子帧所在的上行突发中的倒数第二个上行子帧。
或者，可选地，在本发明实施例中，第二上行子帧为除第一上行子帧之外的且用于上行数据或信息传输的时间长度不小于特定阈值的上行子帧，例如考虑到HARQ-ACK的无损传输，需要上行子帧中用于上行信息传输的时间长度为14个OFDM符号，那么在该例中，特定阈值可以设置为14个OFDM符号，也就是说第二上行子帧用于上行信息传输的时间长度为不小于14个OFDM符号，对于正常循环前缀配置而言，第二上行子帧用于上行信息传输的时间长度等于1个子帧的时间长度。
可选地，在本发明实施例中，第二上行子帧与第一上行子帧在同一个上行突发中，即同在所述第一上行突发中。例如图4M所示。这样做的好处在于，不同的上行突发之间，还可能存在一个下行突发，例如图4M所示，在这种情况下，如果第二上行子帧与第一上行子帧在同一个上行突发中，那么在第二个下行突发中，接入网设备就可以获得终端设备对第一个下行突发中被调度的下行数据所反馈的HARQ-ACK，这样接入网设备就可以根据该终端设备反馈的HARQ-ACK，确定在第二个下行突发中是否需要对没有调度成功的数据进行重传或开始进行新数据的传输，还可以确定在第二个下行突发中，对已经调度成功的数据进行新数据的传输，从而可以减少数据处理的时延。
需要说明的是，所述第二上行子帧还可以是在所述第一上行子帧之后，但不在所述第一上行突发中，而是在所述第一上行突发之后的上行突发中。进一步可选地，所述第二上行子帧可以是所述第一上行突发之后的上行突发中最后一个、第一个或者倒数第二个上行子帧，或者是用于上行数据或信息传输的时间长度不小于特定阈值的上行子帧。但是采用这种方式并不优于“所述第二上行子帧在所述第一上行突发”的方式，这是因为，如果第二上行子帧与第一上行子帧不在同一个上行突发中，且第一上行子帧未竞争到非授权频谱资源，则接入网设备需要在第二个下行突发且第二上行子帧之后，才能获取到第一个下行突发调度的下行数据对应的HARQ-ACK。这样相当于增加了接入网设备的数据传输时延(英文：delay)。
可选地，第二上行子帧可以在第二上行突发中，所述第二上行突发在所述第一上行突发之后，且所述第二上行突发与所述第一上行突发相邻，即所述第一上行突发与所述第二上行突发之间不包括其他下行突发，例如图4N所示， 这里需要说明的是，原则上，在时间上连续传输的上行子帧组成的突发都可以看为一个上行突发，但不排除，基于非授权频谱上最大使用时长的考虑例如MCOT，将连续传输的上行子帧划分为多个上行突发。进一步可选地，所述第二上行子帧可以是所述第二上行突发中最后一个、第一个或者倒数第二个上行子帧，或者是用于上行数据或信息传输的时间长度不小于特定阈值的上行子帧，在本发明做不做具体限定。
作为一种可选的实施方式，所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的重叠码本指示信息；
所述终端设备根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
在本发明实施例中，所述终端设备根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合，可以包括：所述终端设备根据所述重叠码本指示信息，可以确定在所述第二上行子帧反馈的第二反馈信息中是否包括所述第一反馈信息；或者，也可以包括：所述终端设备根据所述重叠码本指示信息，可以确定所述第二上行子帧与所述第二下行子帧集合中的哪些下行子帧对应的反馈信息相关联；或者，也可以包括：所述终端设备根据所述重叠码本指示信息，也可以确定所述第二上行子帧与所述第二下行子帧集合中的哪些下行子帧相关联，这里的哪些子帧可以包括第一下行子帧集合中的部分或全部子帧，也可以不包括第一下行子帧集合中的子帧。
可选地，所述重叠码本指示信息用于指示，在第二上行子帧中反馈的第二反馈信息是否包括第一下行子帧集合中的下行数据对应的反馈信息。所述重叠码本指示信息还可以用于指示，在第二上行子帧中反馈的第二反馈信息具体包括第一下行子帧集合中的哪些下行子帧对应的反馈信息。可选地，第二反馈信息可以包括第一反馈信息的全部内容；或者，第二反馈信息可以包括第一反馈信息的部分内容。
可选地，该重叠码本指示信息可以承载在调度第二上行子帧的上行调度指示信息例如UL grant中。例如，在UL grant中包括1比特指示信息，当该比特置为1或0时，表示在第二上行子帧反馈的第二反馈信息中需要包括第一反 馈信息；或者说，与第二上行子帧相关联的第二下行子帧集合包括第一下行子帧集合中的全部下行子帧或部分下行子帧，进一步地，当包括部分下行子帧时，可以通过预配置或其他信令指示的方式，使终端设备确定与第二上行子帧相关联的第一下行子帧集合中的部分下行子帧。在本发明实施例中，当终端设备根据重叠码本指示信息确定在第二上行子帧中传输的第二反馈信息包括第一反馈信息时，第二反馈信息包括第一反馈信息的所有内容，或者说，第二反馈信息对应第二下行子帧集合中包括的所有下行子帧对应的反馈信息。
或者，在本发明实施例中，重叠码本指示信息也可以不是接入网设备发送的，而是隐式指示地。例如，如果终端设备在所述第一上行子帧之前需要通过CCA确定，在第一上行子帧是否可以发送所述第一反馈信息，那么该终端设备就可以确定与所述第二上行子帧相关联的第二反馈信息需要包括所述第一反馈信息的全部内容；或者，又例如，如果终端设备确定在第一上行子帧传输第一反馈信息之前，需要先通过CCA确定非授权频谱资源是否可用，那么该终端设备就可以确定在第二上行子帧的第二反馈信息中需要包括第一下行子帧集合中的下行数据对应的反馈信息。
进一步地，可选地，所述终端设备根据所述重叠码本指示信息，确定与所述第二上行子帧相关联的第二下行子帧集合，还可以包括，所述终端设备根据所述重叠码本指示信息，确定所述第二下行子帧集合为包括该重叠码本指示信息的下行子帧所在的下行突发中与第二上行子帧满足HARQ定时关系的所有下行子帧，这里的HARQ定时关系可以理解为：假设第二上行子帧用子帧n表示，且下行突发中与第二上行子帧满足HARQ定时关系的子帧用子帧m表示，则n-m的结果不小于4，这里也不排除以后的LTE系统定义更短的HARQ定时关系，例如n-m的结果还可以不小于N，其中N为小于4的自然数；或者，所述终端设备根据所述重叠码本指示信息，确定所述第二上行子帧与所述第二下行子帧集合相关联，还可以包括，所述终端设备根据所述重叠码本指示信息，确定所述第二下行子帧集合为包括该重叠码本指示信息的下行子帧所在的下行突发中与第二上行子帧满足HARQ定时关系的所有下行子帧，以及所述所在的下行突发之前的下行突发中未反馈HARQ-ACK的所有下行子帧，这里未反馈HARQ-ACK的原因可以是由于该终端设备没有竞争到非授权频谱资 源；或者，所述终端设备根据所述重叠码本指示信息，确定所述第二上行子帧与所述第二下行子帧集合相关联，还可以包括，假设所述第二上行子帧所在的上行突发为第一上行突发，那么所述终端设备根据所述重叠码本指示信息，确定除所述第一上行突发中的第一个上行子帧之外关联的所有下行子帧，均为第二下行子帧集合中包括的下行子帧。
通过执行上述步骤，可以根据第一反馈信息传输成功的几率，确定第二反馈信息传输的内容，从而既能保证第一反馈信息的传输，也能尽可能减小第二上行子帧用于传输第二反馈信息的开销。
作为一种可选的实施方式，所述方法还包括：
所述终端设备确定第三下行子帧集合关联的第三上行子帧，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后；
所述终端设备确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
所述终端设备在所述第三上行子帧中确定第三上行信道；
所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
本发明实施例中，第一下行子帧集合、第三下行子帧集合之间的关系，以及第一上行子帧与第三上行子帧的关系可以如图4O所示。
通过执行上述步骤，所述至少一个下行突发中包括的下行数据对应的反馈信息除了可以在第一上行子帧反馈，还可以在第三上行子帧反馈，相比于将所述至少一个下行突发中包括的下行数据对应的反馈信息都在第一上行子帧反馈，可以减小第一上行子帧中包括的反馈信息的开销，并且，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的反馈信息的传输。这是因为，如果将所述至少一个下行突发中包括下行数据对应的反馈信息都在第一上行子帧反馈，那么如果终端设备在第一上行子帧没有竞争到免许可频段资源，那 么所述至少一个下行突发中包括的下行数据对应的反馈信息都无法传输，在这种情况下，终端设备确定第三上行子帧，可以尽可能地保证所述至少一个下行突发中包括的下行数据对应的部分反馈信息的传输。
作为一种可选的实施方式，所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的重叠码本指示信息；
所述终端设备根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
可选地，所述终端设备根据所述重叠码本指示信息，确定与所述第三上行子帧相关联的第三下行子帧集合，还可以包括，所述终端设备根据所述重叠码本指示信息，确定所述第三下行子帧集合为包括该重叠码本指示信息的下行子帧所在的下行突发中除去所述第一下行子帧集合且与所述第三上行子帧满足HARQ定时关系的所有下行子帧，这里的HARQ定时关系可以理解为：假设第三上行子帧用子帧n表示，且下行突发中与第三上行子帧满足HARQ定时关系的子帧用子帧m表示，则n-m的结果不小于4，这里也不排除以后的LTE系统定义更短的HARQ定时关系，例如n-m的结果还可以不小于N，其中N为小于4的自然数；或者，所述终端设备根据所述重叠码本指示信息，确定与所述第三上行子帧相关联的第三下行子帧集合，还可以包括，假设所述第三上行子帧所在的上行突发为第一上行突发，那么所述终端设备根据所述重叠码本指示信息，确定除所述第一上行突发中的第一个上行子帧之外关联的所有下行子帧，均为第三下行子帧集合中包括的下行子帧。
可选地，该重叠码本指示信息可以承载在调度第三上行子帧的上行调度指示信息例如UL grant中。例如，在UL grant中包括1比特指示信息，当该比特置为0或1时，表示在第三上行子帧反馈的第三反馈信息中不需要包括第一反馈信息；或者说，与第三上行子帧相关联的第三下行子帧集合不包括第一下行子帧集合中的全部下行子帧。
或者，在本发明实施例中，重叠码本指示信息也可以不是接入网设备发送的，而是隐式指示地。例如，如果终端设备在所述第一上行子帧之前不需要通过CCA确定，在第一上行子帧是否可以发送所述第一反馈信息，那么该终端 设备就可以确定与所述第三上行子帧相关联的第三反馈信息不需要包括所述第一反馈信息的全部内容；或者，又例如，如果终端设备确定在第一上行子帧传输第一反馈信息之前，不需要先通过CCA确定非授权频谱资源是否可用，那么该终端设备就可以确定在第三上行子帧的第三反馈信息中不包括第一下行子帧集合中的下行数据对应的反馈信息。例如，当第一上行子帧为一个下行突发之后的第一个上行子帧时，终端设备在所述第一上行子帧传输第一反馈信息时，可以不执行CCA，这样第一反馈信息的传输机会得以保证，终端设备可以在第三上行子帧不传输第一反馈信息。这里的“一个下行突发“可以是第一下行子帧集合所在的至少一个下行突发中包括的下行突发。
需要说明一下，所述第三上行子帧所在的上行突发与所述第一上行子帧所在的上行突发，可以是相同的，也可以是不同。所述第三上行子帧可以是所述第三上行子帧所在的上行突发中的最后一个或者倒数第二个上行子帧，当所述第三上行子帧所在的上行突发与所述第一上行子帧所在的上行突发不是一个上行突发时，所述第三上行子帧还可以是所述第三上行子帧所在的上行突发中的第一个上行子帧；或者，可选地，所述第三上行子帧是用于上行数据或信息传输的时间长度不小于特定阈值的上行子帧，在本发明做不做具体限定。
通过执行上述步骤，可以根据第一反馈信息传输成功的几率，确定第三反馈信息传输的内容，能尽可能减小第三上行子帧用于传输第三反馈信息的开销。
在本发明实施例中，作为一种可选的实施方式，终端设备确定第四上行子帧，并根据第四上行子帧对应的重叠码本指示信息，确定与第四上行子帧相关联的第四下行子帧集合，是否包括第一下行子帧集合；或者说，终端设备确定第四上行子帧，并根据第四上行子帧对应的重叠码本指示信息，确定在所述第四上行子帧传输的反馈信息中是否包括第一反馈信息。可选地，除了“与所述第二下行子帧集合相关联，第一下行子帧集合为所述第二下行子帧集合的子集”之外，第四上行子帧的特征可以与第二上行子帧特征类似，例如，可以为第一上行子帧所在的下行突发中的最后一个或者倒数第二个子帧；或者，第四上行子帧与第一上行子帧在同一个上行突发中。
需要说明一下，所述第四上行子帧所在的上行突发与所述第一上行子帧所在的上行突发，可以是相同的，也可以是不同的。所述第四上行子帧可以是所 述第四上行子帧所在的上行突发中的最后一个或者倒数第二个上行子帧，当所述第四上行子帧所在的上行突发与所述第一上行子帧所在的上行突发不是一个上行突发时，所述第四上行子帧还可以是所述第四上行子帧所在的上行突发中的第一个上行子帧；或者，可选地，所述第四上行子帧是用于上行数据或信息传输的时间长度不小于特定阈值的上行子帧，在本发明做不做具体限定。
作为一种可选的实施方式，所述终端设备在所述第一上行信道上向所述接入网设备发送所述第一反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
例如，如果终端设备被调度了几个连续的UL子帧，即使每个上行子帧都可以反馈下行数据对应的HARQ-ACK，也可以通过该反馈信息承载指示信息，指示终端设备在最后的UL子帧反馈。如图4F所示，尽管对应下行突发中的每个下行子帧都有一个对应的上行子帧可以反馈HARQ-ACK，但是从资源开销来看，接入网设备可以通过反馈信息承载指示信息，指示终端设备哪些上行子帧包括HARQ-ACK的反馈资源。当前LTE系统中的反馈信息一般传输在某个上行子帧中的PUCCH中，而该PUCCH在频域上一般占用一个资源块(英文：Resource Block，RB)，此时的资源开销不高，考虑到一个20MHz的载波中在频域上有100个资源块。但是，在非授权频谱的载波上的信息发送需要占用一定的频域资源的比例，比如一个接入网设备或一个终端设备在某个非授权频谱的载波上的一次信息发送需要至少占用80％的频域资源范围，以该载波的总共100个资源块为例，则需要占用80％的频域资源范围。此外，非授权频谱上的信息发送还收到功率谱密度的限制，一般在1MHz带宽内的发送功率不可以超过10dBm，因此为了提高信息发送的功率效率，以及上述80％频域资源的占用范围，一种频域资源占用方式为一个物理上行控制信道占用10个资源块，该10个资源块在频域上的相邻资源块间距为10个资源块。这样就导致非授权频谱上的一个物理上行控制信道的资源占用开销较当前LTE系统要显著增加。通过接入网设备指定发送反馈信息的时序位置，可以避免终端设备在所有可以发送反馈信息的上行子帧中都发送反馈信息，从而节省资源。
可选地，该反馈信息承载指示信息可以承载在UL grant中，或者也可以承载在公共控制信令中，例如承载在与第一上行子帧所在的上行突发之前的一个下行突发或多个下行突发包括的下行子帧中；又例如承载在与第一上行子帧所在的上行突发之前的一个下行突发或多个下行突发包括的最后一个或者倒数第二个下行子帧中。可选地，该公共控制信息还可以用于指示包括该公共控制信息在内的下行突发的结束时刻。
通过执行上述步骤，可以节省第一上行子帧中用于传输第一反馈信息的资源开销，保证数据传输效率。
需要说明的是，对于第二上行子帧、第三上行子帧、第四上行子帧也可以有相同的指示信息。也就是说，
作为一种可选的实施方式，所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第二上行信道上发送所述第二反馈信息。
作为一种可选的实施方式，所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第三上行信道上发送所述第三反馈信息。
作为一种可选的实施方式，所述终端设备在所述第四上行信道上向所述接入网设备发送所述第四反馈信息之前，还包括：
所述终端设备接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第四上行信道上发送所述第四反馈信息。
此外，下面描述的子帧配置指示信息，同样地对第二上行子帧、第三上行子帧、第四上行子帧也有类似的描述。
作为一种可选的实施方式，所述终端设备确定第一下行子帧集合与第一上行子帧相关联，包括：
所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
作为一种可选的实施方式，所述终端设备确定第二下行子帧集合与第二上行子帧相关联，包括：
所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第二下行子帧集合与第二上行子帧相关联。
作为一种可选的实施方式，所述终端设备确定第三下行子帧集合与第三上行子帧相关联，包括：
所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第三下行子帧集合与第三上行子帧相关联。
下述以所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联为例进行说明。
在本发明实施例中，所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联，可以包括：所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系，确定与所述第一上行子帧相关联的所述第一下行子帧集合；也可以包括：所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系，确定与所述第一下行子帧集合相关联的所述第一上行子帧。
在本发明实施例中，作为一种可选的实施方式，所述下行子帧配置指示信息用于指示该下行子帧配置指示信息所对应的下行突发中包括的全部下行子帧个数，这里，该下行子帧配置指示信息所对应的下行突发，可以是包括该下行子帧配置指示信息在内的下行突发。其中下行突发中包括的下行子帧，用于下行数据传输的时间长度可以等于一个下行子帧的时间长度例如1ms，用于下 行数据传输的时间长度也可以小于一个下行子帧的时间长度例如小于1ms。如图4P和4Q中的下行突发包括的最后一个下行子帧用于下行数据或下行信息传输的时间长度小于1个下行子帧的时间长度。
所述下行子帧配置指示信息用于指示该下行子帧配置指示信息所对应的下行突发中包括的全部下行子帧个数或者全部下行子帧，指示全部下行子帧，可以包括指示下行子帧的时间位置，该下行子帧的时间位置可以用该下行子帧的子帧标号表示。图4P中，终端设备可以在图4P所示的一个下行突发中的一个或多个子帧中接收到该下行子帧配置指示信息，该下行子帧配置指示信息指示该下行突发中包括6个下行子帧。可选地，终端设备确定第一上行子帧之后，可以根据HARQ定时关系，将在第一上行子帧之前且与第一上行子帧之间满足HARQ定时关系的所有下行子帧作为与第一上行子帧相关联的第一下行子帧集合，图4P中，假设终端设备确定一个上行突发中的第一个上行子帧为第一上行子帧，那么终端设备可以确定一个下行突发中包括的第一个、第二个和第三个下行子帧，为与该第一上行子帧相关联的第一下行子帧集合包括的下行子帧。进一步地，终端设备还可以确定与第一上行子帧在同一个上行突发的其他上行子帧，也可以用于反馈图4P中的一个下行突发包括的下行数据对应的反馈信息即HARQ-ACK信息，该上行子帧反馈的HARQ-ACK信息是否包括第一下行子帧集合的下行数据对应的HARQ-ACK信息，可以通过显式信令指示，也可以通过隐式方式获知，例如，终端设备可以根据重叠码本指示信息，确定该上行子帧是第二上行子帧还是第三上行子帧。
又例如，终端设备如果确定第二上行子帧为上行突发中的最后一个上行子帧，那么终端设备根据HARQ定时关系，以及结合下行子帧配置指示信息，可以确定一个下行突发中的包括的第一、二、三、四、五、六个下行子帧均为与该第二上行子帧相关联的第二下行子帧集合包括的下行子帧。或者，可选地，终端设备如果确定第三上行子帧为上行突发中的最后一个上行子帧，那么终端设备根据HARQ定时关系，以及结合下行子帧配置指示信息，可以确定包括该下行子帧配置指示信息的下行突发中包括6个下行子帧，终端设备可以将这6个下行子帧中属于第一下行子帧集合的下行子帧(即第一个、第二个、第三个下行子帧)排除，剩余的下行子帧，即图4P中一个下行突发包括的第四个、 第五个、第六个下行子帧作为与第三上行子帧相关联的第三下行子帧集合。
图4P中，终端设备可以在图4P所示的一个下行突发中的一个或多个子帧中接收到该下行子帧配置指示信息，该下行子帧配置指示信息指示该下行突发中包括6个下行子帧。终端设备根据该下行子帧配置指示信息，确定该下行突发包括6个下行子帧。如果终端设备确定这6个下行子帧中的第一个、第二个、第三个下行子帧为第一下行子帧集合包括的下行子帧，那么考虑到HARQ定时，终端设备可以将与第三个下行子帧满足HARQ定时的最近的上行子帧，确定为第一上行子帧，例如图4P中，考虑HARQ定时为4ms；进一步可选地，如果终端设备确定这6个下行子帧为第二下行子帧集合包括的下行子帧，那么考虑到HARQ定时，终端设备可以将与第六个下行子帧满足HARQ定时的最近的上行子帧确定为第二上行子帧；或者，如果终端设备确定一个下行突发中包括的第四个、第五个、第六个下行子帧为第三下行子帧集合包括的下行子帧，那么考虑到HARQ定时，终端设备可以将与第六个下行子帧满足HARQ定时的最近的上行子帧确定为第三上行子帧。
图4Q给出了另外一种下行子帧集合与上行子帧的关联关系。作为一种可选的实施方式，图4Q中，终端设备根据第一下行突发和第二下行突发分别包括的下行子帧配置指示信息，确定第一下行突发包括2个下行子帧，第二下行突发包括4个下行子帧，如果终端设备可以确定第二上行突发的第一个上行子帧为第一上行子帧，那么终端设备可以根据HARQ定时关系，以及结合下行子帧配置指示信息，确定第一下行突发中包括的2个下行子帧和第二下行突发中包括的第一个下行子帧为与第一上行子帧相关联的第一下行子帧集合中包括的下行子帧；如果终端设备确定第二上行突发中的最后一个上行子帧为可以反馈HARQ-ACK的子帧，那么根据HARQ定时关系，一方面，终端设备可以确定与最后一个上行子帧相关联的下行子帧包括第一下行突发中2个下行子帧和第二下行突发中的4个下行子帧，这种情况下，最后一个上行子帧可以对应本发明实施例中的第二上行子帧；又或者，终端设备可以确定与最后一个上行子帧相关联的下行子帧包括第二下行突发中的第二个、第三个和第四个下行子帧，这种情况下，最后一个上行子帧可以对应本发明实施例中的第三上行子帧。图4Q的结构形式同样也适用于终端设备根据下行子帧配置指示信息以及 HARQ定时关系，确定与第一(二或三)下行子帧集合相关联的第一(二或三)上行子帧，在此不做具体限定。
利用下行子帧配置指示信息确定下行突发包括的下行子帧个数，相对于终端设备通过检测参考信号(例如小区特定参考信号CRS，Cell-specfic reference signal)的有无来确定下行突发包括的下行子帧个数，传输可靠性更高，这样可以保证接入网设备与终端设备对下行突发中包括的下行子帧个数理解一致，从而保证终端设备对于下行子帧的下行数据反馈的HARQ-ACK信息与接入网设备的理解一致。
在本发明实施例中，作为另外一种可选的实施方式，所述下行子帧配置指示信息还用于指示所述下行子帧配置指示信息所对应的下行突发中的一部分下行子帧个数或一部分下行子帧。指示一部分下行子帧，可以包括指示该一部分下行子帧的时间位置，该一部分下行子帧的时间位置可以用该一部分下行子帧分别对应的子帧标号表示。例如，所述下行子帧配置指示信息还可以用于指示，假设包括该下行子帧配置指示信息的下行突发为第一下行突发，包括该下行子帧配置指示信息的子帧为子帧n，那么该下行子帧配置指示信息还可以用于指示在第一下行突发中包括的第一个下行子帧到子帧n所包括的子帧个数。进一步可选地，该下行子帧配置指示信息还可以用于指示第一下行子帧集合。例如图4P中，假设终端设备在一个下行突发中的第四个下行子帧中收到所述下行子帧配置指示信息，则该下行子帧配置指示信息可以用于指示该下行突发中的下行子帧个数为4，进一步可选地，终端设备可以将这4个下行子帧作为第一下行子帧集合；假设终端设备在一个下行突发中的第五个下行子帧中收到所述下行子帧配置指示信息，则该下行子帧配置指示信息可以用于指示该下行突发中的下行子帧个数为5。其他根据该下行子帧配置指示信息以及反馈信息的定时关系(例如HARQ定时关系)同前所述，在此不做赘述。需要说明的是，在本发明实施例中，下行数据与反馈信息的定时关系可以是预配置的，也可以是接入网设备通知的，不做具体限定。
在本发明实施例中，作为另外一种可选的实施方法，所述下行子帧配置指示信息还用于指示该下行子帧配置指示信息所在的下行突发。例如，通过该下行子帧配置指示信息，可以指示该下行子帧配置指示信息所在的下行突发的起 始位置和/或结束位置。终端设备通过接收所述下行子帧配置指示信息，可以识别下行子帧配置指示信息所在的下行突发。例如，如图4P所示，假设终端设备在一个下行突发的最后一个下行子帧接收到该下行子帧配置指示信息，且该下行子帧配置指示信息指示该下行突发中包括6个下行子帧，那么终端设备就可以确定该下行突发的起始位置是位于最后一个下行子帧的子帧起始边界之前且距离该子帧起始边界5个子帧(或者5ms)对应的时间位置。
在本发明实施例中，作为另外一种可选的实施方式，所述下行子帧配置指示信息还用于指示所述第一下行子帧集合。
需要说明的是，通过每个下行突发对应的下行子帧配置指示信息，以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联，该确定方法也适用于确定所述第二下行子帧集合与所述第二上行子帧相关联，也适用于确定所述第三下行子帧集合与所述第三上行子帧相关联。
通过执行上述步骤，可以实现终端设备对第一下行子帧集合的可靠检测，进而可以在第一上行子帧传输正确的第一反馈信息。
可选的，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。这样做的好处在于：可以更好地适用于非授权频谱上灵活的上下行配置，这是因为，将该下行子帧配置指示信息承载在倒数第一个和/或倒数第二个下行子帧，可以使得该下行子帧配置指示信息对应的下行突发的下行子帧个数的变化达到最大。
可选地，所述下行子帧配置指示信息承载在物理层公共控制信令中，进一步可选地，该物理层公共控制信息还可以用于指示所述下行子帧配置指示信息所对应的下行突发的结束时刻，例如可以采用小区公共RNTI无线网络临时识别(英文：Cell Common Radio Network Temporary Identity，CC-RNTI)进行加扰。
可选的，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
通过执行上述步骤，终端设备根据接收到的第一下行子帧集合来确定与之关联的第一上行子帧，从而在第一上行子帧中传送第一下行子帧集合对应的反馈信息，可以满足U-LTE系统中灵活的上下行配置，能够在U-LTE场景下保 证终端设备合理地发送ACK/NACK反馈信息，并且通过在第一上行子帧中承载多个下行数据对应的反馈信息，可以提高传输的资源利用率，避免资源浪费。
为了便于更好地实施本发明实施例的上述反馈信息的传输方法，本发明还提供了用于实现实施上述方法的相关设备。
请参见图5，是本发明实施例提供的一种终端设备的结构示意图。如图5所示，该终端设备50包括处理器501、存储器502、通信模块503和总线504，其中处理器501、存储器502和通信模块503可以通过总线或其他方式连接，图5以通过总线504连接为例。
可选的，终端设备50还可以包括：输入/输出(英文：Input/Output，I/O)接口接口505、I/O控制器506、显示器507、传感器508和电源模块509。
其中，处理器501可以是通用处理器，例如中央处理器(英文：Central Processing Unit，CPU)，用于运行终端设备50的操作系统软件以及需要的应用程序软件等。处理器501可处理通过通信模块503接收到的数据。处理器501还可处理将被发送到通信模块503以进行无线传输的数据。
存储器502用于存储反馈信息的传输程序代码，完成终端设备的各种软件程序的存储、数据的存储、软件的运行等，存储器502可以包括易失性存储器(英文：Volatile Memory)，例如随机存取存储器(英文：Random Access Memory，RAM)。存储器502也可以包括非易失性存储器(英文：Non-Volatile Memory)，例如只读存储器(英文：Read-Only Memory，ROM)、硬盘(英文：Hard Disk Drive，HDD)或固态硬盘(英文：Solid-State Drive，SSD)。存储器502还可以包括上述种类的存储器的组合。
通信模块503为终端设备50提供通信功能，用于对处理器501生成的移动通信信号进行发射处理(例如放大、调制、编码等)，还用于对天线接收的移动通信信号进行接收处理(例如解调、解码等)，通信模块503可以适用于蜂窝网络，例如GSM、UMTS、LTE、CDMA网络等，也可以适用于WLAN、近距离通信(英文：Near Field Communication，NFC)、蓝牙等网络中的一种或者多种。
总线504可以是工业标准体系结构(英文：Industry Standard Architecture， ISA)总线、外部设备互连(英文：Peripheral Component Interconnect，PCI)总线、扩展标准体系结构(英文：Extended Industry Standard Architecture，EISA)总线、集成电路总线(英文：Inter Integrated Circuit，IIC)等。
I/O接口505为终端设备50的对外接口，包括通用串行总线(英文：Universal Serial Bus，USB)接口、安全数码(英文：Secure Digital，SD)卡接口、按键接口等中的一种或者多种。
I/O控制器506为终端设备50中用于控制各种输入输出设备之间的数据交互，特别包括处理器501与I/O接口505、显示器507之间的数据交互。
显示器507为终端设备50的显示屏和触摸屏，显示器507用于显示该终端设备50的软件运行状态、电量状态、时间、用户配置界面和配置结果；触摸屏用于接收用户触摸操作并转换成用户操作指令。
传感器508为各种传感器设备，包括(英文：Global Positioning System，GPS)模块，重力传感器，加速度传感器，距离传感器，摄像头，光学传感器等中的一种或者多种。
电源模块509为终端设备50的各个模块供电。
本发明实施例中，处理器501主要用于调用存储于存储器502中的程序，并执行如下操作：
处理器501通过所述通信模块503在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；
处理器501确定第一下行子帧集合与第一上行子帧相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一上行子帧用于发送所述第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后；
处理器501确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息；
处理器501在所述第一上行子帧中确定第一上行信道；
处理器501通过所述通信模块503在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
可选的，处理器501还用于：
处理器501确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
处理器501确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
处理器501在所述第二上行子帧中确定第二上行信道；
处理器501通过所述通信模块503在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
可选的，处理器501通过所述通信模块503在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，处理器501还用于：
处理器501通过所述通信模块503接收所述接入网设备发送的重叠码本指示信息；
处理器501根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
可选的，处理器501还用于：
处理器501确定第三下行子帧集合与第三上行子帧相关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后；
处理器501确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
处理器501在所述第三上行子帧中确定第三上行信道；
处理器501通过所述通信模块503在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
可选的，处理器501通过所述通信模块503在所述第三上行信道上向所述 接入网设备发送所述第三反馈信息之前，所述处理器501还用于：
处理器501通过所述通信模块503接收所述接入网设备发送的重叠码本指示信息；
处理器501根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
可选的，处理器501通过所述通信模块503在所述第一上行信道上向所述接入网设备发送所述第一反馈信息之前，处理器501还用于：
处理器501通过所述通信模块503接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
可选的，处理器501确定第一下行子帧集合与第一上行子帧相关联，包括：
处理器501根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
可选的，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
可选的，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
需要说明的是，本发明实施例所描述的终端设备50中各功能模块的功能可根据上述图3所示实施例中对应终端设备的相关描述，此处不再赘述。
请参见图6，是本发明实施例提供的一种接入网设备的结构示意图。如图6所示，该接入网设备60包括处理器601、存储器602、通信模块603和总线604，其中处理器601、存储器602和通信模块603可以通过总线或其他方式连接，图6以通过总线604连接为例。
可选的，接入网设备60还可以包括网络接口605和电源模块606。
其中，处理器601可以是数字信号处理(英文：Digital Signal Processing，DSP)芯片。处理器601用于进行无线信道管理，并为本控制区内终端设备的过区切换进行控制等。具体实现中，处理器601可包括：AM/CM模块(用于话 路交换和信息交换的中心)、BM模块(用于完成呼叫处理、信令处理、无线资源管理、无线链路的管理和电路维护功能)、TCSM模块(用于完成复用解复用及码变换功能)等模块。具体信息可参考移动通讯相关知识。
存储器602用于存储反馈信息的传输程序代码，具体实现中，存储器602可以采用ROM或RAM，可用于存储程序代码。
通信模块603用于对处理器601生成的移动通信信号进行发射处理(例如调制)，还用于对天线接收的移动通信信号进行接收处理(例如解调)。
总线604可以是ISA总线、PCI总线、EISA总线、IIC总线等。
网络接口605用于接入网设备60与终端(2G中的移动台MS、3G和4G中的UE)进行数据通信。具体实现中，网络接口605可包括：GSM(2G)无线网络接口、WCDMA(3G)无线网络接口以及LTE(4G)无线网络接口等等中的一种或几种，也可以是未来4.5G或5G的无线网络接口。
电源模块606用于为接入网设备60的各个模块供电。
本发明实施例中，处理器601还用于调用存储器602中的程序代码，执行如下操作：
处理器601通过所述通信模块603在至少一个下行突发中的下行子帧中向终端设备发送下行数据；
处理器601通过所述通信模块603在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息，所述第一上行子帧与第一下行子帧集合相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一反馈信息与所述第一下行子帧集合中的下行数据所对应，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后。
需要说明的，接入网设备60可以适用2G通信系统(如GSM)、3G通信系统(如UMTS)以及4G通信系统(LTE)，也可以是未来的4.5G或5G通信系统。
可选的，处理器601还用于：
通过所述通信模块603在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息，所述第二上行子帧与第二下行子帧集合关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所 述第二下行子帧集合的子集，所述第二反馈信息与所述第二下行子帧集合中的下行数据所对应，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后。
可选的，处理器601通过所述通信模块603在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息之前，所述处理器601还用于：
通过所述通信模块603向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第二上行子帧相关联的第二下行子帧集合。
可选的，处理器601还用于：
通过所述通信模块603在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息，所述第三上行子帧与第三下行子帧集合关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三反馈信息与所述第三下行子帧集合中的下行数据所对应，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后。
可选的，处理器601通过所述通信模块603在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息之前，所述处理器601还用于：
通过所述通信模块603向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第三上行子帧相关联的第三下行子帧集合。
可选的，处理器601通过所述通信模块603在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息之前，所述处理器601还用于：
通过所述通信模块603向所述终端设备发送反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行子帧中的第一上行信道上发送所述第一反馈信息。
可选的，所述处理器601还用于：
通过所述通信模块603在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指 示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联。
可选的，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
可选的，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
需要说明的是，本发明实施例所描述的接入网设备60中各功能模块的功能可根据上述图3所示实施例中对应接入网设备的相关描述，此处不再赘述。
请参见图7，是本发明实施例提供的另一种终端设备的结构示意图。如图7所示，终端设备70包括：接收单元701、第一确定单元702、第二确定单元703、第三确定单元704和第一发送单元705，其中，
第一接收单元701，用于在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；
第一确定单元702，用于确定第一下行子帧集合与第一上行子帧相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一上行子帧用于发送所述第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后；
第二确定单元703，用于确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息；
第三确定单元704，用于在所述第一上行子帧中确定第一上行信道；
第一发送单元705，用于在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
在本实施例中，终端设备70是以功能单元的形式来呈现。这里的“单元”可以指特定应用集成电路(英文：Application Specific Integrated Circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。终端设备70可以采用图5所示的形式。其中，接收单元701、第一确定单元702、第二确定单元703、第三确定单元704和第一发送单元705可以通过图5中的处理器501来实现。
可选的，终端设备70还包括：
第四确定单元，用于确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
第五确定单元，用于确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
第六确定单元，用于在所述第二上行子帧中确定第二上行信道；
第二发送单元，用于在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
可选的，终端设备70还包括：
第二接收单元，用于接收所述接入网设备发送的重叠码本指示信息；
第七确定单元，用于根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
可选的，终端设备70还包括：
第八确定单元，用于确定第三下行子帧集合与第三上行子帧相关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后；
第九确定单元，用于确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
第十确定单元，用于在所述第三上行子帧中确定第三上行信道；
第三发送单元，用于在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
可选的，终端设备70还包括：
第三接收单元，用于接收所述接入网设备发送的重叠码本指示信息；
第十一确定单元，用于根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
可选的，终端设备70还包括：
第四接收单元，用于接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
可选的，第一确定单元702具体用于：
根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
需要说明的是，本发明实施例中所描述的终端设备70中各功能单元的功能可根据上述图3所示实施例中终端设备的相关描述，此处不再赘述。
请参见图8，是本发明实施例提供的一种接入网设备的结构示意图。如图8所示，接入网设备80包括：第一发送单元801和第一接收单元802，其中，
第一发送单元801，用于在至少一个下行突发中的下行子帧中向终端设备发送下行数据；
第一接收单元802，用于在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息，所述第一上行子帧与第一下行子帧集合相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一反馈信息与所述第一下行子帧集合中的下行数据所对应，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后。
在本实施例中，接入网设备80是以功能单元的形式来呈现。这里的“单元”可以指ASIC，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。接入网设备80可以采用图6所示的形式。其中，第一发送单元801和第一接收单元802可以通过图6中的处理器601来实现。
可选的，接入网设备80还包括：
第二接收单元，用于在第二上行子帧中的第二上行信道上接收所述终端设 备发送的第二反馈信息，所述第二上行子帧与第二下行子帧集合关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二反馈信息与所述第二下行子帧集合中的下行数据所对应，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后。
可选的，接入网设备80还包括：
第二发送单元，用于向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第二上行子帧相关联的第二下行子帧集合。
可选的，接入网设备80还包括：
第三接收单元，用于在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息，所述第三上行子帧与第三下行子帧集合关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三反馈信息与所述第三下行子帧集合中的下行数据所对应，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后。
可选的，接入网设备80还包括：
第三发送单元，用于向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第三上行子帧相关联的第三下行子帧集合。
可选的，接入网设备80还包括：
第四发送单元，用于向所述终端设备发送反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行子帧中的第一上行信道上发送所述第一反馈信息。
可选的，接入网设备80还包括：
第五发送单元，用于在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信 息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联。
需要说明的是，本发明实施例中所描述的接入网设备80中各功能单元的功能可根据上述图3所示实施例中接入网设备的相关描述，此处不再赘述。
为了便于更好地实施本发明实施例，本发明实施例进一步地提供了一种计算机可读存储介质，所述计算机可读存储介质存储有一个或多个计算机程序，其中，所述计算机可读存储介质可为磁碟、光盘、ROM或RAM等。所述一个或多个计算机程序运行在终端设备或接入网设备中的一个或多个的处理器上，所述计算机程序在运行时，可实现如上述图3所示方法实施例的流程。
综上所述，通过实施本发明实施例，终端设备根据接收到的第一下行子帧集合来确定与之关联的第一上行子帧，从而在第一上行子帧中传送第一下行子帧集合对应的反馈信息，可以满足U-LTE系统中灵活的上下行配置，能够在U-LTE场景下保证终端设备合理地发送ACK/NACK反馈信息，并且通过在第一上行子帧中承载多个下行数据对应的反馈信息，可以提高传输的资源利用率，避免资源浪费。
尽管在此结合各实施例对本发明进行了描述，然而不能以此来限定本发明之权利范围，在实施所要求保护的本发明过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。在权利要求中，“包括”一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个控制器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求所记载了某些措辞，但这并不表示这些措辞不能组合起来产生良好的效果。计算机程序可以存储/分布在合适的介质中，例如：光存储介质或固态介质，与其他硬件一起提供或作为硬件的一部分，也可以采用其他分布方式，如通过因特网(英文：Internet)或其他有线或无线系统。

Claims (37)

  1. 一种反馈信息的传输方法，其特征在于，包括：
    终端设备在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；
    所述终端设备确定第一下行子帧集合与第一上行子帧相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一上行子帧用于发送所述第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后；
    所述终端设备确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息；
    所述终端设备在所述第一上行子帧中确定第一上行信道；
    所述终端设备在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    所述终端设备确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
    所述终端设备确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
    所述终端设备在所述第二上行子帧中确定第二上行信道；
    所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，还包括：
    所述终端设备接收所述接入网设备发送的重叠码本指示信息；
    所述终端设备根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
  4. 根据权利要求1所述的方法，其特征在于，还包括：
    所述终端设备确定第三下行子帧集合与第三上行子帧相关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后；
    所述终端设备确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
    所述终端设备在所述第三上行子帧中确定第三上行信道；
    所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
  5. 根据权利要求4所述的方法，其特征在于，所述终端设备在所述第三上行信道上向所述接入网设备发送所述第三反馈信息之前，还包括：
    所述终端设备接收所述接入网设备发送的重叠码本指示信息；
    所述终端设备根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述终端设备在所述第一上行信道上向所述接入网设备发送所述第一反馈信息之前，还包括：
    所述终端设备接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述终端设备确定第一下行子帧集合与第一上行子帧相关联，包括：
    所述终端设备根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
  8. 根据权利要求7所述的方法，其特征在于，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
  9. 根据权利要求7或8所述的方法，其特征在于，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
  10. 一种反馈信息的传输方法，其特征在于，包括：
    接入网设备在至少一个下行突发中的下行子帧中向终端设备发送下行数据；
    所述接入网设备在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息，所述第一上行子帧与第一下行子帧集合相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一反馈信息与所述第一下行子帧集合中的下行数据所对应，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后。
  11. 根据权利要求10所述的方法，其特征在于，还包括：
    所述接入网设备在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息，所述第二上行子帧与第二下行子帧集合关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二反馈信息与所述第二下行子帧集合中的下行数据所对应，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所 述第一上行子帧之后。
  12. 根据权利要求11所述的方法，其特征在于，所述接入网设备在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息之前，还包括：
    所述接入网设备向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第二上行子帧相关联的第二下行子帧集合。
  13. 根据权利要求10所述的方法，其特征在于，还包括：
    所述接入网设备在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息，所述第三上行子帧与第三下行子帧集合关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三反馈信息与所述第三下行子帧集合中的下行数据所对应，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后。
  14. 根据权利要求13所述的方法，其特征在于，所述接入网设备在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息之前，还包括：
    所述接入网设备向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第三上行子帧相关联的第三下行子帧集合。
  15. 根据权利要求10至14任一项所述的方法，其特征在于，所述接入网设备在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息之前，还包括：
    所述接入网设备向所述终端设备发送反馈信息承载指示信息，所述反馈信 息承载指示信息用于指示所述终端设备是否在所述第一上行子帧中的第一上行信道上发送所述第一反馈信息。
  16. 根据权利要求10至15任一项所述的方法，其特征在于，还包括：
    所述接入网设备在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联。
  17. 根据权利要求16所述的方法，其特征在于，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
  18. 根据权利要求16或17所述的方法，其特征在于，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
  19. 一种终端设备，其特征在于，包括处理器、存储器以及通信模块，其中，所述存储器用于存储反馈信息的传输程序代码，所述处理器用于调用所述反馈信息的传输程序代码来执行如下操作：
    所述处理器通过所述通信模块在至少一个下行突发中的下行子帧中接收接入网设备发送的下行数据；
    所述处理器确定第一下行子帧集合与第一上行子帧相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一上行子帧用于发送所述第一下行子帧集合中的下行数据所对应的第一反馈信息，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后；
    所述处理器确定第一反馈信息码本，并根据所述第一反馈信息码本确定所述第一反馈信息；
    所述处理器在所述第一上行子帧中确定第一上行信道；
    所述处理器通过所述通信模块在所述第一上行信道上向所述接入网设备发送所述第一反馈信息。
  20. 根据权利要求19所述的终端设备，其特征在于，所述处理器还用于：
    所述处理器确定第二下行子帧集合与第二上行子帧相关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二上行子帧用于发送所述第二下行子帧集合中的下行数据所对应的第二反馈信息，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后；
    所述处理器确定第二反馈信息码本，并根据所述第二反馈信息码本确定所述第二反馈信息；
    所述处理器在所述第二上行子帧中确定第二上行信道；
    所述处理器通过所述通信模块在所述第二上行信道上向所述接入网设备发送所述第二反馈信息。
  21. 根据权利要求20所述的终端设备，其特征在于，所述处理器通过所述通信模块在所述第二上行信道上向所述接入网设备发送所述第二反馈信息之前，所述处理器还用于：
    所述处理器通过所述通信模块接收所述接入网设备发送的重叠码本指示信息；
    所述处理器根据所述重叠码本指示信息确定与所述第二上行子帧相关联的第二下行子帧集合。
  22. 根据权利要求19所述的终端设备，其特征在于，所述处理器还用于：
    所述处理器确定第三下行子帧集合与第三上行子帧相关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三上行子帧用于发送所述第三下行子帧集合中的下行数据所对应的第三反馈信息，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所 述第一上行子帧之后；
    所述处理器确定第三反馈信息码本，并根据所述第三反馈信息码本确定所述第三反馈信息；
    所述处理器在所述第三上行子帧中确定第三上行信道；
    所述处理器通过所述通信模块在所述第三上行信道上向所述接入网设备发送所述第三反馈信息。
  23. 根据权利要求22所述的终端设备，其特征在于，所述处理器通过所述通信模块在所述第三上行信道上向所述接入网设备发送所述第三反馈信息之前，所述处理器还用于：
    所述处理器通过所述通信模块接收所述接入网设备发送的重叠码本指示信息；
    所述处理器根据所述重叠码本指示信息确定与所述第三上行子帧相关联的第三下行子帧集合。
  24. 根据权利要求19至23任一项所述的终端设备，其特征在于，所述处理器通过所述通信模块在所述第一上行信道上向所述接入网设备发送所述第一反馈信息之前，所述处理器还用于：
    所述处理器通过所述通信模块接收所述接入网设备发送的反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行信道上发送所述第一反馈信息。
  25. 根据权利要求19至24任一项所述的终端设备，其特征在于，所述处理器确定第一下行子帧集合与第一上行子帧相关联，包括：
    所述处理器根据所述至少一个下行突发中的每个下行突发对应的下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定第一下行子帧集合与第一上行子帧相关联。
  26. 根据权利要求25所述的终端设备，其特征在于，所述下行子帧配置 指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
  27. 根据权利要求25或26所述的终端设备，其特征在于，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
  28. 一种接入网设备，其特征在于，包括处理器、存储器以及通信模块，其中，所述存储器用于存储反馈信息的传输程序代码，所述处理器用于调用所述反馈信息的传输程序代码来执行如下操作：
    所述处理器通过所述通信模块在至少一个下行突发中的下行子帧中向终端设备发送下行数据；
    所述处理器通过所述通信模块在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息，所述第一上行子帧与第一下行子帧集合相关联，所述第一下行子帧集合属于所述至少一个下行突发，所述第一反馈信息与所述第一下行子帧集合中的下行数据所对应，所述第一上行子帧在第一上行突发中，所述第一上行突发在所述至少一个下行突发之后。
  29. 根据权利要求28所述的接入网设备，其特征在于，所述处理器还用于：
    通过所述通信模块在第二上行子帧中的第二上行信道上接收所述终端设备发送的第二反馈信息，所述第二上行子帧与第二下行子帧集合关联，所述第二下行子帧集合属于所述至少一个下行突发，所述第一下行子帧集合为所述第二下行子帧集合的子集，所述第二反馈信息与所述第二下行子帧集合中的下行数据所对应，所述第二上行子帧在所述第一上行突发中，所述第二上行子帧在所述第一上行子帧之后。
  30. 根据权利要求29所述的接入网设备，其特征在于，所述处理器通过所述通信模块在第二上行子帧中的第二上行信道上接收所述终端设备发送的 第二反馈信息之前，所述处理器还用于：
    通过所述通信模块向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第二上行子帧相关联的第二下行子帧集合。
  31. 根据权利要求28所述的接入网设备，其特征在于，所述处理器还用于：
    通过所述通信模块在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息，所述第三上行子帧与第三下行子帧集合关联，所述第三下行子帧集合属于所述至少一个下行突发，所述第三下行子帧集合与所述第一下行子帧集合无重叠，所述第三反馈信息与所述第三下行子帧集合中的下行数据所对应，所述第三上行子帧在所述第一上行突发中或所述第三上行子帧在所述第一上行突发之后的上行突发中，所述第三上行子帧在所述第一上行子帧之后。
  32. 根据权利要求31所述的接入网设备，其特征在于，所述处理器通过所述通信模块在第三上行子帧中的第三上行信道上接收所述终端设备发送的第三反馈信息之前，所述处理器还用于：
    通过所述通信模块向所述终端设备发送重叠码本指示信息，所述重叠码本指示信息用于所述终端设备确定与所述第三上行子帧相关联的第三下行子帧集合。
  33. 根据权利要求28至32任一项所述的接入网设备，其特征在于，所述处理器通过所述通信模块在第一上行子帧中的第一上行信道上接收所述终端设备发送的第一反馈信息之前，所述处理器还用于：
    通过所述通信模块向所述终端设备发送反馈信息承载指示信息，所述反馈信息承载指示信息用于指示所述终端设备是否在所述第一上行子帧中的第一上行信道上发送所述第一反馈信息。
  34. 根据权利要求28至33任一项所述的接入网设备，其特征在于，所述处理器还用于：
    通过所述通信模块在所述至少一个下行突发中的每个下行突发中的下行子帧中向所述终端设备发送下行子帧配置指示信息，所述下行子帧配置指示信息用于所述终端设备根据所述下行子帧配置指示信息以及下行数据与反馈信息的定时关系确定所述第一下行子帧集合与所述第一上行子帧相关联。
  35. 根据权利要求34所述的接入网设备，其特征在于，所述下行子帧配置指示信息包含在所述至少一个下行突发中的每个下行突发中的倒数第一个和/或倒数第二个下行子帧中。
  36. 根据权利要求34或35所述的接入网设备，其特征在于，所述下行子帧配置指示信息用于指示所述下行子帧配置指示信息所在的下行突发中的下行子帧数量。
  37. 一种通信系统，其特征在于，所述通信系统包括权利要求19至27任一项所述的终端设备以及权利要求28至36任一项所述的接入网设备。
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