WO2020029144A1 - 混合自动重传请求harq反馈方法及装置 - Google Patents

混合自动重传请求harq反馈方法及装置 Download PDF

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WO2020029144A1
WO2020029144A1 PCT/CN2018/099473 CN2018099473W WO2020029144A1 WO 2020029144 A1 WO2020029144 A1 WO 2020029144A1 CN 2018099473 W CN2018099473 W CN 2018099473W WO 2020029144 A1 WO2020029144 A1 WO 2020029144A1
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target
pucch
candidate
harq
index value
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English (en)
French (fr)
Inventor
牟勤
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to EP18929466.3A priority Critical patent/EP3836443A4/en
Priority to US17/281,878 priority patent/US11881953B2/en
Priority to CN202111350664.7A priority patent/CN114024654B/zh
Priority to BR112021008984-5A priority patent/BR112021008984A2/pt
Priority to JP2021521790A priority patent/JP7407810B2/ja
Priority to KR1020217006641A priority patent/KR102641075B1/ko
Priority to CN201880001766.8A priority patent/CN109155694B/zh
Priority to RU2021105729A priority patent/RU2767602C1/ru
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to SG11202102510WA priority patent/SG11202102510WA/en
Priority to PCT/CN2018/099473 priority patent/WO2020029144A1/zh
Publication of WO2020029144A1 publication Critical patent/WO2020029144A1/zh
Anticipated expiration legal-status Critical
Priority to JP2023055240A priority patent/JP2023082112A/ja
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    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/1861—Physical mapping arrangements
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H04L1/0073—Special arrangements for feedback channel
    • 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
    • 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
    • H04L1/1806—Go-back-N protocols
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a HARQ feedback method and device for hybrid automatic repeat request.
  • MTC Machine Type Communication
  • TDD MTC systems can be divided into TDD (Time Division Duplexing, time division duplex) MTC systems and FDD (Frequency Division Division Duplexing, frequency division duplex) MTC systems.
  • TDD MTC system when PDSCH (MTC physical downlink link channel MTC physical downlink shared channel) scheduled by TDD MTC is not configured for repeated transmission, you can use PUCCH (Physical Uplink Control Channel) format 1bwith Channel selection (format 1b with channel selection) is used as a HARQ (Hybrid, Automatic Repeat, and ReQuest, hybrid automatic repeat request) feedback method.
  • PDSCH Physical downlink link channel MTC physical downlink shared channel
  • HARQ Hybrid, Automatic Repeat, and ReQuest, hybrid automatic repeat request
  • PUCCH format 1b with channel selection in TDD and MTC is similar to traditional TDD LTE (long term evolution, long-term evolution), and its essence is to use the content carried by PUCCH format 1b and the selection of PUCCH transmission resources in conjunction with HARQ feedback status.
  • one PDCCH schedules multiple PDSCHs
  • one PDCCH can only derive one possible PUCCH resource at this time, so the selection of PUCCH resources cannot be performed.
  • one PDCCH schedules multiple PDSCHs, a state in which a certain HARQ feedback state is DTX does not occur. In other words, the HARQ feedback method in the TDD MTC system needs to be optimized.
  • embodiments of the present disclosure provide a hybrid automatic repeat request HARQ feedback method and device.
  • a hybrid automatic repeat request HARQ feedback method is provided.
  • the method is used for a machine type communication MTC device.
  • the method includes:
  • the at least one target HARQ result is a HARQ result corresponding to at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is among all PDSCHs scheduled by the current physical downlink control channel PDCCH At least one PDSCH that needs to perform HARQ result feedback in the current subframe;
  • the target PUCCH is a corresponding target PUCCH resource used to carry the PUCCH of the group HARQ result, so The group of HARQ results and the target PUCCH resource are used to characterize the multiple target HARQ results;
  • the candidate PUCCH is determined in the following manner:
  • the candidate index value is a resource index value corresponding to the candidate PUCCH
  • the determining an alternative index value includes:
  • the first preset function is a preset function corresponding to a target search space CCE index value, and the target CCE index value is a minimum CCE index value corresponding to the current PDCCH;
  • the target start position Is the starting position of the resource corresponding to the PUCCH channel used to carry the HARQ result;
  • the second preset function is a preset function corresponding to the first target value and the second target value, and the first target value is related to A value corresponding to the subframe configuration of the TDD MTC system and the current subframe position, the second target value is the number of CCEs included in the physical resource block carrying the current PDCCH;
  • the first target offset is the current The offset of the PUCCH resource carried by the PDCCH for feedback of the HARQ result.
  • the candidate PUCCH is determined in the following manner:
  • the first candidate index value is a resource index value corresponding to a first candidate PUCCH in at least one candidate PUCCH;
  • the determining a second target offset corresponding to each of the other candidate PUCCHs includes:
  • the candidate PUCCH is determined in the following manner:
  • All PUCCHs in the PUCCH set are used as candidate PUCCHs.
  • the determining a target PUCCH and a group HARQ result in at least one candidate physical uplink control channel PUCCH according to the at least one target HARQ result includes:
  • a target PUCCH and a group HARQ result are determined in at least one candidate PUCCH according to a preset mapping relationship between multiple target HARQ results, a target PUCCH resource, and a group HARQ result.
  • the determining at least one target HARQ result includes:
  • the target HARQ results corresponding to the at least one target PDSCH are all that the current PDCCH is not received.
  • a hybrid automatic repeat request HARQ feedback device is provided.
  • the device is used for time division duplex machine type communication TDD and MTC equipment.
  • the device includes:
  • a first determining module is configured to determine at least one target HARQ result; the at least one target HARQ result is a HARQ result corresponding to at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is controlled by a current physical downlink. At least one PDSCH that requires HARQ result feedback in the current subframe among all PDSCHs scheduled by the channel PDCCH;
  • a second determining module is configured to determine a target PUCCH and a group HARQ result in at least one candidate physical uplink control channel PUCCH according to the at least one target HARQ result; the target PUCCH is a corresponding target PUCCH resource for A PUCCH carrying a group HARQ result, the group HARQ result and the target PUCCH resource are used to characterize the multiple target HARQ results;
  • the sending module is configured to bear the group HARQ result through the target PUCCH resource, and send the target PUCCH to a base station.
  • the second determining module includes:
  • a candidate index value determination sub-module configured to determine a candidate index value if the number of the at least one target PDSCH is 1, the candidate index value is a resource index value corresponding to the candidate PUCCH;
  • the first determining submodule is configured to use the PUCCH indicated by the candidate index value as the candidate PUCCH.
  • the candidate index value determination submodule includes:
  • the candidate index value determining unit is configured to determine the candidate function according to the first function value of the first preset function, the value corresponding to the target starting position, the second function value of the second preset function, and the first target offset. Said alternative index value;
  • the first preset function is a preset function corresponding to a target search space CCE index value, and the target CCE index value is a minimum CCE index value corresponding to the current PDCCH;
  • the target start position Is the starting position of the resource corresponding to the PUCCH channel used to carry the HARQ result;
  • the second preset function is a preset function corresponding to the first target value and the second target value, and the first target value is related to A value corresponding to the subframe configuration of the TDD MTC system and the current subframe position, the second target value is the number of CCEs included in the physical resource block carrying the current PDCCH;
  • the first target offset is the current The offset of the PUCCH resource carried by the PDCCH for feedback of the HARQ result.
  • the second determining module includes:
  • a first index value determination submodule configured to determine a first candidate index value if the number of the at least one target PDSCH is multiple; the first candidate index value is the first backup in at least one candidate PUCCH Select the resource index value corresponding to PUCCH;
  • a second determining submodule configured to use the PUCCH indicated by the first candidate index value as the first candidate PUCCH
  • the offset determination sub-module is used to determine a second target offset corresponding to each of the other candidate PUCCHs; wherein the other candidate PUCCH is a candidate PUCCH other than the first candidate PUCCH, and The second target offset is the resource offset of other current candidate PUCCHs relative to the first candidate PUCCH;
  • a second index value determination submodule configured to determine a second candidate index value according to a value corresponding to a location of a resource of the first candidate PUCCH and the second target offset;
  • the third determining submodule is configured to use the PUCCH indicated by the second candidate index value as the other candidate PUCCH.
  • the offset determination sub-module includes:
  • a first receiving unit configured to receive a second target offset corresponding to each of the other candidate PUCCHs sent by the base station through preset signaling;
  • the second receiving unit is configured to use a preset resource offset as the second target offset.
  • the second determining module includes:
  • a receiving submodule configured to receive a PUCCH set including at least one PUCCH sent by the base station through first target signaling if the number of the at least one target PDSCH is multiple;
  • a fourth determining submodule is configured to use all PUCCHs in the PUCCH set as candidate PUCCHs.
  • the second determining module includes:
  • a fifth determination submodule is configured to determine a target PUCCH and a group HARQ result in at least one candidate PUCCH according to a preset mapping relationship between a plurality of target HARQ results, a target PUCCH resource, and a group HARQ result.
  • the first determining module includes:
  • a sixth determining submodule configured to determine, according to the at least one target PDSCH scheduled by the current PDCCH, that the target HARQ result corresponding to each of the at least one target PDSCH is correct or incorrect;
  • a seventh determination submodule is configured to determine, according to the at least one target PDSCH scheduled by the current PDCCH, that the target HARQ results corresponding to the at least one target PDSCH are all that the current PDCCH has not been received.
  • a computer-readable storage medium stores a computer program for performing the hybrid automatic repeat request HARQ feedback method according to the first aspect. .
  • a hybrid automatic repeat request HARQ feedback device is provided.
  • the device is used for a time division duplex machine type communication TDD MTC device, and includes:
  • Memory for storing processor-executable instructions
  • the processor is configured to:
  • the at least one target HARQ result is a HARQ result corresponding to at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is among all PDSCHs scheduled by the current physical downlink control channel PDCCH At least one PDSCH that needs to perform HARQ result feedback in the current subframe;
  • the target PUCCH is a corresponding target PUCCH resource used to carry the PUCCH of the group HARQ result, so The group of HARQ results and the target PUCCH resource are used to characterize the multiple target HARQ results;
  • the TDD MTC device may first determine at least one target HARQ result, wherein the at least one target HARQ result is a HARQ result corresponding to at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is Of all the PDSCHs scheduled by the current physical downlink control channel PDCCH, at least one PDSCH that needs to be fed back with HARQ results in the current subframe. Further, the TDD MTC device may determine a target PUCCH and a group HARQ result in at least one candidate physical uplink control channel PUCCH according to the at least one target HARQ result, thereby carrying the group HARQ result through the target PUCCH resource, And sending the target PUCCH to the base station.
  • HARQ results corresponding to all PDSCHs scheduled by the current PDCCH can be fed back through different subframes, thereby achieving at least one target PUCCH corresponding to one PDCH to perform HARQ results of the scheduled PDSCH. Purpose of feedback.
  • the TDD MTC device may first determine an alternative index value, and change the value indicated by the alternative index value.
  • the PUCCH is used as a candidate PUCCH, and a target PUCCH may be subsequently determined in at least one candidate physical uplink control channel PUCCH, thereby achieving the purpose of HARQ result feedback of the scheduled PDSCH by selecting at least one target PUCCH corresponding to a PDCCH.
  • the candidate index value may be determined according to the first function value of the first preset function, the value corresponding to the target starting position, the second function value of the second preset function, and the first target offset. , Easy to implement, high availability.
  • the TDD MTC device may also first determine a first candidate index value, and The PUCCH indicated by a candidate index value is used as the first candidate PUCCH. Further, a second target offset corresponding to each of the other candidate PUCCHs is determined, and a second candidate index value is determined according to a value corresponding to the resource location of the first candidate PUCCH and the second target offset. , The TDD MTC device uses the PUCCH indicated by the second candidate index value as the other candidate PUCCH.
  • the TDD MTC device can quickly determine multiple candidate PUCCHs. Subsequently, a target PUCCH can be determined in at least one candidate physical uplink control channel PUCCH, and the scheduling of at least one target PUCCH corresponding to one PDCCH is achieved. Purpose of PDSCH HARQ result feedback.
  • the second target offset may be configured by the base station for each of the other candidate PUCCHs through preset signaling, or may be determined by the TDD MTC device according to the preset resource offset. Volume, high availability.
  • the TDD MTC device may also receive at least one The PUCCH set of the PUCCH.
  • the TDD MTC device may use all PUCCHs in the PUCCH set as candidate PUCCHs.
  • the purpose of selecting at least one target PUCCH corresponding to the HARQ result feedback of the scheduled PDSCH through one PDCCH can also be achieved.
  • a target PUCCH and a group HARQ result may be directly determined in at least one candidate PUCCH according to a preset mapping relationship between multiple target HARQ results, target PUCCH resources, and group HARQ results. Therefore, in the TDD MTC system, HARQ results corresponding to all PDSCHs scheduled by the current PDCCH are fed back through different subframes, and the purpose of selecting at least one target PUCCH corresponding to one PDCCH to perform HARQ result feedback of all PDSCHs scheduled is achieved. .
  • the at least one target PDSCH scheduled by the current PDCCH it may be determined that at least one target HARQ result that needs to be HARQ result feedback through the current subframe may be correct or incorrect, or the at least one target HARQ result It may be all that the current PDCCH is not received. Therefore, when HARQ result feedback is performed in the related art, since multiple PDSCHs are scheduled through multiple PDCCHs, the feedback HARQ result includes a situation where the current PDCCH is correct, incorrect, or not received.
  • Fig. 1 is a flowchart of a HARQ feedback method for a hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 2 is a flowchart of another HARQ feedback method for hybrid automatic retransmission request according to an exemplary embodiment.
  • Fig. 3 is a flow chart of another HARQ feedback method for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 4 is a flowchart of another HARQ feedback method for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 5 is a block diagram of a device for hybrid automatic repeat request HARQ feedback according to an exemplary embodiment.
  • Fig. 6 is a block diagram of another HARQ feedback apparatus for a hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 7 is a block diagram of another HARQ feedback apparatus for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 8 is a block diagram of another HARQ feedback apparatus for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 9 is a block diagram of another HARQ feedback apparatus for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 10 is a block diagram of another HARQ feedback apparatus for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 11 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus according to an exemplary embodiment.
  • Fig. 12 is a block diagram of another HARQ feedback apparatus for hybrid automatic repeat request according to an exemplary embodiment.
  • Fig. 13 is a schematic structural diagram of a HARQ feedback apparatus for a hybrid automatic repeat request according to an exemplary embodiment.
  • first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • word “if” as used herein can be interpreted as “at” or "when” or "in response to determination”.
  • the PUCCH transmission content setting and PUCCH transmission resource selection can be performed according to Table 1.
  • the first column in Table 1 indicates the HARQ results of demodulation for 3 times.
  • ACK acknowledgement, correct
  • NACK Negative, ACKnowledgment, error
  • DTX indicates that the receiving device does not receive the PDCCH corresponding to the scheduled PDSCH.
  • the second column in Table 1 indicates the PUCCH resources selected by PUCCH format 1b. among them Respective PUCCH resources respectively derived from the three schedulings.
  • the third column in Table 1 indicates the transmission content carried by PUCCH format 1b.
  • the TDD MTC device transmits the PUCCH format 1b on the PUCCH resource derived from the third schedule, where the transmission content of the PUCCH format 1b is 11.
  • the base station At the base station side, if the transmission content is monitored on the PUCCH resource derived from the third scheduling, the base station considers the corresponding three scheduling results to be ACK, ACK, and ACK.
  • FIG. 1 is a flowchart of a hybrid automatic repeat request HARQ feedback method according to an exemplary embodiment, which may include the following steps:
  • step 101 at least one target HARQ result is determined; the at least one target HARQ result is a HARQ result corresponding to at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is determined by a current physical downlink control channel PDCCH. At least one PDSCH that requires HARQ result feedback in the current subframe among all scheduled PDSCHs;
  • a target PUCCH and a group HARQ result are determined in at least one candidate physical uplink control channel PUCCH according to the at least one target HARQ result; the target PUCCH is a corresponding target PUCCH resource for carrying the group HARQ
  • the resulting PUCCH, the set of HARQ results and the target PUCCH resource are used to characterize the multiple target HARQ results;
  • step 103 the group HARQ result is carried by the target PUCCH resource, and the target PUCCH is sent to a base station.
  • HARQ results corresponding to all PDSCHs scheduled by the current PDCCH can be fed back through different subframes, so that at least one target PUCCH corresponding to one PDCCH is selected to perform HARQ of the scheduled PDSCH through one PDCCH. Purpose of results feedback.
  • the current PDCCH can simultaneously schedule multiple consecutive PDSCHs, and HARQ results corresponding to all PDSCHs scheduled by the current PDCCH can be fed back through at least one subframe.
  • the subframe through which the HARQ results corresponding to all PDSCHs scheduled by the current PDCCH are fed back is related to the frame format of the TDD system and the uplink subframe for transmitting HARQ feedback. The corresponding relationship is shown in Table 2.
  • Table 2 lists the set of downlink subframe information that is responsible for feedback in each uplink subframe of each uplink / downlink configuration. Specifically, if the downlink subframe information corresponding to each uplink subframe n in Table 2 is defined as k, then the set of downlink subframes for which the uplink subframe n is responsible for feedback is n-k.
  • the uplink / downlink configuration is 1, and three PDSCHs are scheduled for the current PDCCH as an example. If three PDSCHs are scheduled in the current PDCCH, it can be determined according to Table 2 that when the uplink / downlink configuration is 1, subframe 2 is responsible for feeding back the HARQ corresponding to the PDSCH carried in the second minus 6 or the second minus 7 subframe. That is, subframe 2 is responsible for feeding back the HARQ corresponding to the PDSCH carried in subframe 5 and subframe 6 of the previous radio frame.
  • Subframe 3 is responsible for feeding back the HARQ corresponding to the PDSCH carried in the 3 minus 4 subframes, that is, Subframe 3 is responsible for feeding back the HARQ corresponding to the PDSCH carried in subframe 9 of the previous radio frame. .
  • the HARQ corresponding to the PDSCH carried in subframe 5 and subframe 6 is in subframe 2 of the next radio frame.
  • the HARQ corresponding to the PDSCH carried in subframe 9 is fed back in subframe 3 of the next radio frame.
  • the TDD MTC device may determine at least one target HARQ result according to related technologies, where the at least one target HARQ result is a HARQ result corresponding to at least one target PDSCH, and the at least one PDSCH is all that is scheduled by the current PDCCH. At least one PDSCH in the PDSCH that requires HARQ result feedback through the current subframe.
  • the current PDCCH schedules the at least one target PDSCH, it can be determined that the target HARQ result corresponding to each of the at least one target PDSCH is correct or incorrect, or that the The target HARQ results corresponding to at least one target PDSCH are all that the current PDCCH is not received.
  • scheduling of multiple PDSCHs through multiple PDCCHs does not occur, so that a situation in which a certain HARQ result is that the current PDCCH is not received, therefore, it can play an optimization role in Table 1 above. The optimization of Table 1 will be further explained later.
  • the TDD MTC device may determine that at least one target HARQ result may be ACK or NACK, or may be all DTX.
  • the TDD MTC device may first determine a corresponding number of candidate PUCCHs based on multiple target HARQ results, all possible target PUCCH resources in a preset mapping relationship between the target PUCCH resources and the group HARQ feedback.
  • the number of candidate PUCCH is 1; if the number of all possible target PUCCH resources in the preset mapping relationship is multiple, then the number of candidate PUCCH The number is correspondingly multiple.
  • the TDD MTC device After the TDD MTC device determines the candidate PUCCH, it can determine a target PUCCH and a group HARQ result in at least one candidate PUCCH according to a preset mapping relationship between multiple target HARQ results, target PUCCH resources, and group HARQ results.
  • Table 3 shows preset mapping relationships between multiple target HARQ results, target PUCCH resources, and group HARQ feedback.
  • the TDD MTC device determines multiple target HARQ results according to step 101, and after determining candidate PUCCHs in this step, it can determine the target PUCCH resources and group HARQ results simultaneously according to Table 3.
  • the index values of the candidate PUCCH resources corresponding to the candidate PUCCH are n_PUCCH1 and n_PUCCH2. According to Table 3, it can be determined that the value of X is 1, and the group HARQ result is 1. Correspondingly, the index value of the target PUCCH resource is n_PUCCH1.
  • the TDD MTC device may determine the corresponding target PUCCH according to the index value of the target PUCCH resource, and use the PUCCH with the index value n_PUCCH1 as the target PUCCH.
  • the TDD MTC device may bear the group HARQ result through the target PUCCH resource of the current subframe according to the related technology, and send the target PUCCH to the base station.
  • the TDD MTC device may use any one of the following methods to determine the candidate PUCCH.
  • the PUCCH indicated by the candidate index value is used as the candidate PUCCH.
  • FIG. 2 is another HARQ feedback method for hybrid automatic retransmission request according to the embodiment shown in FIG. 1.
  • the flowchart, the process of determining a candidate PUCCH may include the following steps:
  • a candidate index value is determined; the candidate index value is a resource index value corresponding to the candidate PUCCH;
  • the candidate index may be determined according to the first function value of the first preset function, the value corresponding to the target starting position, the second function value of the second preset function, and the first target offset. value.
  • the sum of the first function value, the value corresponding to the target starting position, the second function value, and the first target offset may be calculated to obtain the candidate index value.
  • the first preset function is a preset function corresponding to a target CCE index value
  • the target CCE index value is a minimum CCE index value corresponding to the current PDCCH.
  • the target start position is the start position of the resource corresponding to the PUCCH channel used to carry the HARQ result.
  • the second preset function is a preset function corresponding to the first target value and the second target value.
  • the first target value Is a value corresponding to the subframe configuration of the TDD MTC system and the current subframe position, the second target value is the number of CCEs included in the physical resource block carrying the current PDCCH; the first target offset is the The offset of the PUCCH resources carried by the current PDCCH for feedback of HARQ results.
  • the candidate index value may be determined according to the following formula 1 or formula 2.
  • the candidate index value can be calculated according to Formula 1:
  • the candidate index value can be calculated according to Formula 2:
  • the target CCE index value n CCE is the lowest CCE index occupied by the PDCCH corresponding to the current scheduling, and the value N PUCCH corresponding to the target starting position is the starting position of the PUCCH resources configured by RRC signaling, ⁇ ARO is the first target offset, Expressed in The total number of ECCEs (Enhanced Control Channel Elements, enhanced control channel elements) included in the PDCCH physical resource block set in the subframe.
  • n represents the uplink subframe number of the feedback HARQ.
  • Table 2 The values of k il corresponding to each uplink subframe are shown in Table 2.
  • il in k il represents the number of the value of k il in the corresponding set.
  • ⁇ ARO is a PUCCH resource offset indicated in the DCI.
  • the Is the number of ECCEs contained in one RB
  • n ' is a parameter related to the antenna port transmitting the PDCCH. Specifically determined by formula 3:
  • n RNTI is an identifier configured to the user by the base station, Represents the total number of ECCEs occupied by this PDCCH.
  • the TDD MTC device may determine the candidate index value according to Formula 1 or Formula 2.
  • step 102-12 the PUCCH indicated by the candidate index value is used as the candidate PUCCH.
  • the TDD MTC device uses the PUCCH indicated by the candidate index value as the candidate PUCCH.
  • multiple target HARQ results are preset, and in a preset mapping relationship between the target PUCCH resource and the group HARQ feedback, if the number of possible target PUCCH resources is one, one candidate PUCCH needs to be derived. Then, the TDD MTC device may first determine the candidate index value, use the PUCCH indicated by the candidate index value as the candidate PUCCH, and subsequently determine a target PUCCH in at least one candidate physical uplink control channel PUCCH, thereby implementing selection through a PDCCH. The purpose of the corresponding at least one target PUCCH is to perform HARQ result feedback of the scheduled PDSCH.
  • multiple target HARQ results are preset, and the preset mapping relationship between the target PUCCH resource and the group HARQ feedback is shown in Table 3. If there are multiple possible target PUCCH resources in the mapping relationship, then multiple candidate PUCCHs need to be derived at this time. Then, the first index value and the second index value are determined respectively, and the PDCCH indicated by the first index value and the second index value is used as a candidate PUCCH.
  • FIG. 3 is a flowchart of another HARQ feedback method for hybrid automatic retransmission request according to the embodiment shown in FIG. 1.
  • the process of determining a candidate PUCCH may include the following steps:
  • a first candidate index value is determined; the first candidate index value is a resource index value corresponding to a first candidate PUCCH among a plurality of candidate PUCCHs;
  • the method for determining the first candidate index value may be the same as the method for determining the candidate index value in the above steps 102-11, and details are not described herein again.
  • step 102-22 the PUCCH indicated by the first candidate index value is used as the first candidate PUCCH;
  • the TDD MTC device may also use the PUCCH indicated by the first candidate index value as the first candidate PUCCH.
  • step 102-23 a second target offset corresponding to each of the other candidate PUCCHs is determined; wherein the other candidate PUCCHs are candidate PUCCHs other than the first candidate PUCCH, and the second target biases
  • the shift is the resource offset of the other candidate PUCCH currently compared to the first candidate PUCCH;
  • the second target offset may be sent by the base station to the TDD MTC device through preset signaling, such as high-level RRC signaling or physical layer DCI signaling.
  • the second target offset configured by the base station may be The amount can be the same, for example, each second target offset is offset; or the second target offset can be different, and the base station configures an offset set ⁇ X1, X2, ... Xi through the preset signaling. ⁇ , Corresponding to different second target offsets in order.
  • the TDD MTC device may directly use the preset resource offset as the second target offset.
  • a second candidate index value is determined according to the value corresponding to the location of the resource of the first candidate PUCCH and the second target offset;
  • the TDD MTC device may directly use the sum of the value corresponding to the location of the resource of the first candidate PUCCH and the second target offset as the second candidate index value.
  • the second target offset is configured by the base station to the TDD MTC device through preset signaling, such as RRC signaling or DCI signaling, or the preset resource offset is directly used as the second target offset Shift, you can use formula 4 to calculate the second candidate index value n PUCCH, i :
  • n PUCCH, i n PUCCH, 0 + i * offset Equation 4
  • n PUCCH, i n PUCCH, 0 + X i Equation 5
  • step 102-25 the PUCCH indicated by the second candidate index value is used as the other candidate PUCCH.
  • the TDD MTC device uses formula 4 or formula 5 to obtain the second candidate index value, it can directly use the PUCCH indicated by each second candidate index value as other candidate PUCCH.
  • multiple target HARQ results are preset, and the preset mapping relationship between the target PUCCH resource and the group HARQ feedback is shown in Table 3. If the number of possible target PUCCH resources in the mapping relationship is multiple, then multiple candidate PUCCHs need to be derived at this time. Then the TDD MTC device may also first determine a first candidate index value, and use the PUCCH indicated by the first candidate index value as the first candidate PUCCH. Further, a second target offset corresponding to each of the other candidate PUCCHs is determined, and a second candidate index value is determined according to a value corresponding to the resource location of the first candidate PUCCH and the second target offset.
  • the TDD MTC device uses the PUCCH indicated by the second candidate index value as the other candidate PUCCH. Through the above process, the TDD MTC device can quickly determine multiple candidate PUCCHs. Subsequently, a target PUCCH can be determined in at least one candidate physical uplink control channel PUCCH, and the scheduling of at least one target PUCCH corresponding to one PDCCH is achieved. Purpose of PDSCH HARQ result feedback.
  • multiple target HARQ results are preset, and the preset mapping relationship between the target PUCCH resource and the group HARQ feedback is shown in Table 3. If there are multiple possible target PUCCH resources in the mapping relationship, then multiple candidate PUCCHs need to be derived at this time. At this time, multiple candidate PUCCHs are configured by the base station.
  • FIG. 4 is a flowchart of another HARQ feedback method for hybrid automatic retransmission request according to the embodiment shown in FIG. 1.
  • the process of determining a candidate PUCCH may include the following steps:
  • steps 102-31 receiving a PUCCH set including at least one PUCCH sent by the base station through the first target signaling;
  • the base station may configure a PUCCH set including at least one PUCCH for the TDD MTC device through the first target signaling, such as RRC signaling, such as ⁇ n PUCCH, 0 , n PUCCH, 1 , ... n PUCCH, i ⁇ .
  • first target signaling such as RRC signaling, such as ⁇ n PUCCH, 0 , n PUCCH, 1 , ... n PUCCH, i ⁇ .
  • steps 102-32 all PUCCHs in the PUCCH set are used as candidate PUCCHs.
  • the TDD MTC device may use all PUCCHs in the PUCCH set as candidate PUCCHs.
  • multiple target HARQ results are preset, and the preset mapping relationship between the target PUCCH resource and the group HARQ feedback is shown in Table 3. If there are multiple possible target PUCCH resources in the mapping relationship, then multiple candidate PUCCHs need to be derived at this time. Then the TDD MTC device may also receive a PUCCH set including at least one PUCCH sent by the base station through the first target signaling, and the TDD MTC device may use all PUCCHs in the PUCCH set as candidate PUCCHs. The purpose of selecting at least one target PUCCH corresponding to the HARQ result feedback of the scheduled PDSCH through one PDCCH can also be achieved.
  • the TDD MTC device determines a target HARQ result corresponding to each target PDSCH, and the target HARQ result may be ACK or NACK, or all target HARQ results have not received the current PDCCH.
  • the TDD MTC device determines that it is necessary to determine the number of candidate PUCCH resources through the number of all possible target PUCCH resources in a preset mapping relationship between multiple target HARQ results, target PUCCH resources, and group HARQ feedback. As many as all possible target PUCCH resources.
  • Formula 1 or Formula 2 can be used to calculate the candidate index value, and the PUCCH corresponding to the candidate index value is used as the candidate. PUCCH.
  • the first candidate index value may be determined first, and the method of determining the first candidate index value is the same as the method of determining the candidate index value, and details are not described herein again.
  • the TDD MTC device uses the PUCCH corresponding to the first candidate index value as the first candidate PUCCH.
  • a second target offset corresponding to each of the other candidate PUCCHs is determined, and the second target offset may be sent by the base station to the TDD MTC device through preset signaling, such as high-level RRC signaling or physical layer DCI signaling. Or directly use the preset resource offset as the second target offset.
  • the TDD MTC device uses the sum of the value corresponding to the resource location of the first candidate PUCCH and the second target offset as the second candidate index value, so as to indicate the second candidate index value.
  • PUCCH as the other alternative PUCCH.
  • the base station may also directly use the first target signaling, such as RRC signaling, to configure a PUCCH set for the TDD MTC device that includes at least one PUCCH, and then the TDD MTC device uses the PUCCH All PUCCHs included in the set serve as candidate PUCCH.
  • first target signaling such as RRC signaling
  • the TDD MTC device determines the candidate PUCCH in the foregoing manner, it is determined in at least one candidate PUCCH according to a preset mapping relationship between multiple target HARQ results, target PUCCH resources, and group HARQ results.
  • the determination method is the same as the method for determining the target PUCCH and group HARQ results in step 102, and details are not described herein again.
  • the TDD MTC device After the TDD MTC device determines the target PUCCH and the group HARQ result, it can directly carry the group HARQ result through the target PUCCH resource of the current subframe, and send the target PUCCH to the base station.
  • HARQ results corresponding to all PDSCHs scheduled by the current PDCCH can be fed back through different subframes, so that at least one target PUCCH corresponding to one PDCCH is selected to perform HARQ of the scheduled PDSCH through one PDCCH. Purpose of results feedback.
  • the at least one target PDSCH since the at least one target PDSCH is scheduled by the current PDCCH, it may be determined that the target HARQ result corresponding to each of the at least one target PDSCH is correct or incorrect, or that each of the at least one target PDSCH is The corresponding target HARQ results are all that the current PDCCH is not received.
  • scheduling of multiple PDSCHs through multiple PDCCHs does not occur, so that a situation in which a certain HARQ result is that the current PDCCH is not received, therefore, it can play an optimization role in Table 1 above.
  • Example 1 two PDSCHs are scheduled for the current PDCCH, and the mapping relationship between the target HARQ feedback, the target PUCCH resource, and the group feedback result is preset as shown in Table 4. At this time, there is only one candidate PUCCH, and the HARQ results corresponding to the two PDSCHs need to pass the content carried by the candidate PUCCHs. .
  • the current PDCCH schedules two PDSCHs, the target HARQ feedback, the mapping relationship between the target PUCCH resources and the group feedback results are preset as shown in Table 4.
  • the HARQ result corresponding to one PDSCH needs to be fed back through the content carried by the target PUCCH, that is, the group HARQ result feedback, and the HARQ result corresponding to the other PDSCH needs to be fed back through the target PUCCH resource.
  • the current PDCCH schedules two PDSCHs, the target HARQ feedback, the mapping relationship between the target PUCCH resources and the group feedback results are preset as shown in Table 6. At this time, there are two candidate PUCCHs, and the HARQ results corresponding to the two PDSCHs need to pass the content carried by the target PUCCH, that is, the group HARQ result feedback.
  • Example 2 The current PDCCH is scheduled with 3 PDSCHs, and the mapping relationship between the target HARQ feedback, the target PUCCH resource, and the group feedback result is preset as shown in Table 7. At this time, there are only two candidate PUCCHs, and the HARQ results corresponding to the two PDSCHs need to be carried through the target PUCCH, that is, the group HARQ result feedback, and the HARQ results corresponding to the other PDSCH need to be feedbacked through the target PUCCH resources.
  • the current PDCCH is scheduled with 3 PDSCHs, and the mapping relationship between the target HARQ feedback, the target PUCCH resource, and the group feedback result is preset as shown in Table 8. At this time, there are three candidate PUCCHs, and the target HARQ feedback result is jointly characterized by the target PUCCH resource selection and group feedback results. .
  • the current PDCCH schedules three PDSCHs, and the mapping relationship between the target HARQ feedback, the target PUCCH resource, and the group feedback result is preset as shown in Table 9. At this time, there are 4 candidate PUCCHs.
  • the HARQ result corresponding to one PDSCH needs to be fed back through the content carried by the target PUCCH, that is, the group HARQ result feedback, and the HARQ results corresponding to the other two PDSCHs need to be feedback through the target PUCCH resource.
  • Example 3 four PDSCHs are scheduled for the current PDCCH, and the mapping relationship between the target HARQ feedback, the target PUCCH resource, and the group feedback result is preset as shown in Table 10. If there are four candidate PUCCHs, the HARQ results corresponding to the two PDSCHs need to be fed back through the content carried by the target PUCCH, that is, the group HARQ result feedback, and the HARQ results corresponding to the other two PDSCHs need to be fed back through the target PUCCH resources.
  • the at least one target PDSCH scheduled by the current PDCCH it may be determined that at least one target HARQ result that needs to be HARQ result feedback through the current subframe may be correct or incorrect, or the at least one target HARQ result may be All is that the current PDCCH is not received. Therefore, when HARQ result feedback is performed in the related art, since multiple PDSCHs are scheduled through multiple PDCCHs, the feedback HARQ result includes a situation where the current PDCCH is correct, incorrect, or not received.
  • the present disclosure also provides embodiments of application function implementation devices and corresponding MTC terminals.
  • FIG. 5 is a block diagram of a hybrid automatic repeat request HARQ feedback apparatus according to an exemplary embodiment.
  • the apparatus is used for a time division duplex machine type communication TDD MTC device.
  • the apparatus includes:
  • the first determining module 210 is configured to determine at least one target HARQ result; the at least one target HARQ result is a HARQ result corresponding to each of the at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is a current physical downlink At least one PDSCH that requires HARQ result feedback in the current subframe among all PDSCHs scheduled by the control channel PDCCH;
  • the second determining module 220 is configured to determine a target PUCCH and a group HARQ result in at least one candidate physical uplink control channel PUCCH according to the at least one target HARQ result; the target PUCCH is a corresponding target PUCCH resource usage A PUCCH carrying a group HARQ result, the group HARQ result and the target PUCCH resource are used to characterize the multiple target HARQ results;
  • the sending module 230 is configured to bear the group HARQ result through the target PUCCH resource, and send the target PUCCH to a base station.
  • FIG. 6 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 5.
  • the second determining module 220 includes:
  • the candidate index value determination sub-module 221 is configured to determine a candidate index value if the number of the at least one target PDSCH is 1, the candidate index value is a resource index value corresponding to the candidate PUCCH;
  • the first determining submodule 222 is configured to use the PUCCH indicated by the candidate index value as the candidate PUCCH.
  • FIG. 7 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 6.
  • the candidate index value determination submodule 221 includes:
  • the candidate index value determining unit 2211 is configured to determine according to the first function value of the first preset function, the value corresponding to the target starting position, the second function value of the second preset function, and the first target offset.
  • the first preset function is a preset function corresponding to a target search space CCE index value, and the target CCE index value is a minimum CCE index value corresponding to the current PDCCH;
  • the target start position Is the starting position of the resource corresponding to the PUCCH channel used to carry the HARQ result;
  • the second preset function is a preset function corresponding to the first target value and the second target value, and the first target value is related to A value corresponding to the subframe configuration of the TDD MTC system and the current subframe position, the second target value is the number of CCEs included in the physical resource block carrying the current PDCCH;
  • the first target offset is the current The offset of the PUCCH resource carried by the PDCCH for feedback of the HARQ result.
  • FIG. 8 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 5.
  • the second determining module 220 includes:
  • the first index value determination sub-module 223 is configured to determine a first candidate index value if the number of the at least one target PDSCH is multiple; the first candidate index value is the first in at least one candidate PUCCH The resource index value corresponding to the candidate PUCCH;
  • a second determination submodule 224 configured to use the PUCCH indicated by the first candidate index value as the first candidate PUCCH
  • the offset determination sub-module 225 is used to determine a second target offset corresponding to each of the other candidate PUCCHs; wherein, the other candidate PUCCHs are candidate PUCCHs other than the first candidate PUCCH, so The second target offset is a resource offset of other current candidate PUCCHs relative to the first candidate PUCCH;
  • a second index value determination sub-module 226 configured to determine a second candidate index value according to a value corresponding to a location of a resource of the first candidate PUCCH and the second target offset;
  • the third determining sub-module 227 is configured to use the PUCCH indicated by the second candidate index value as the other candidate PUCCH.
  • FIG. 9 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 8.
  • the offset determination submodule 225 includes:
  • a first receiving unit 2251 configured to receive a second target offset corresponding to each of the other candidate PUCCHs sent by the base station through preset signaling;
  • the second receiving unit 2252 is configured to use a preset resource offset as the second target offset.
  • FIG. 10 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 5.
  • the second determining module 220 includes:
  • a receiving sub-module 228 configured to receive a PUCCH set including at least one PUCCH sent by the base station through first target signaling if the number of the at least one target PDSCH is multiple;
  • a fourth determination sub-module 229 is configured to use all PUCCHs in the PUCCH set as candidate PUCCHs.
  • FIG. 11 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 5.
  • the second determining module 220 includes:
  • the fifth determining submodule 2210 is configured to determine a target PUCCH and a group HARQ result in at least one candidate PUCCH according to a preset mapping relationship between multiple target HARQ results, the target PUCCH resource, and the group HARQ result.
  • FIG. 12 is a block diagram of another hybrid automatic repeat request HARQ feedback apparatus shown on the basis of the embodiment shown in FIG. 5.
  • the first determining module 210 includes:
  • a sixth determination submodule 211 configured to determine, according to the at least one target PDSCH scheduled by the current PDCCH, that the target HARQ result corresponding to each of the at least one target PDSCH is correct or incorrect; or
  • a seventh determination submodule 212 is configured to determine, according to the at least one target PDSCH scheduled by the current PDCCH, that the target HARQ results corresponding to the at least one target PDSCH are all that the current PDCCH has not been received.
  • the relevant part may refer to the description of the method embodiment.
  • the device embodiments described above are only schematic, in which the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located in one Place, or can be distributed across multiple network elements. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solution of the present disclosure. Those of ordinary skill in the art can understand and implement without creative efforts.
  • the present disclosure also provides a computer-readable storage medium storing a computer program for performing the hybrid automatic repeat request HARQ feedback method of any one of the foregoing.
  • the present disclosure also provides a hybrid automatic repeat request HARQ feedback device, which is used for time division duplex machine type communication TDD and MTC equipment, including:
  • Memory for storing processor-executable instructions
  • the processor is configured to:
  • the at least one target HARQ result is a HARQ result corresponding to at least one target physical downlink shared channel PDSCH, and the at least one target PDSCH is among all PDSCHs scheduled by the current physical downlink control channel PDCCH At least one PDSCH that needs to perform HARQ result feedback in the current subframe;
  • the target PUCCH is a corresponding target PUCCH resource used to carry the PUCCH of the group HARQ result, so The group of HARQ results and the target PUCCH resource are used to characterize the multiple target HARQ results;
  • FIG. 13 is a schematic structural diagram of a hybrid automatic repeat request HARQ feedback device 1300 according to an exemplary embodiment.
  • the apparatus 1300 may be provided as an NB-IOT device.
  • the device 1300 includes a processing component 1322, a wireless transmitting / receiving component 1324, an antenna component 1326, and a signal processing portion unique to a wireless interface.
  • the processing component 1322 may further include one or more processors.
  • One of the processors in the processing component 1322 may be configured to perform any of the above-mentioned hybrid automatic repeat request HARQ feedback methods for a time division duplex machine type communication TDD MTC device.

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Abstract

[240]本公开提供一种混合自动重传请求HARQ反馈方法及装置，其中，所述方法包括：确定至少一个目标HARQ结果；至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；根据至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，组HARQ结果和所述目标PUCCH资源用于表征多个目标HARQ结果；通过目标PUCCH资源承载组HARQ结果，并发送目标PUCCH到基站。本公开可以在TDD MTC系统中将当前PDCCH所调度的所有PDSCH所对应的HARQ结果通过不同子帧进行反馈。

Description

混合自动重传请求HARQ反馈方法及装置 技术领域
本公开涉及通信领域，尤其涉及混合自动重传请求HARQ反馈方法及装置。
背景技术
近年来，物联网蓬勃发展，为人类的生活和工作带来了诸多便利。其中，MTC(Machine Type Communication，机器类通信)技术是蜂窝物联网技术的典型代表。
MTC系统可以分为TDD(Time Division Duplexing，时分双工)MTC系统和FDD(Frequency Division Duplexing，频分双工)MTC系统。在TDD MTC系统中，当TDD MTC所调度的PDSCH(MTC physical downlink shared channel MTC物理下行共享信道)没有配置重复传输时，此时可以使用PUCCH(Physical Uplink Control Channel，物理上行控制信道)format 1b with channel selection(带信道选择的格式1b)作为HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)反馈的方式。
PUCCH format 1b with channel selection在TDD MTC中的使用与传统TDD LTE(Long Term Evolution，长期演进)类似，其本质都是利用PUCCH format 1b所承载的内容和对PUCCH传输资源的选择联合指示HARQ的反馈状态。
但是，由于一个PDCCH调度多个PDSCH，此时一个PDCCH只能推导出一个可能的PUCCH资源，所以无法进行PUCCH资源的选择。另外，由于一个PDCCH调度多个PDSCH，也不会出现某一个HARQ反馈状态为DTX的状态。也就是说，TDD MTC系统中的HARQ反馈方式有待优化。
发明内容
为克服相关技术中存在的问题，本公开实施例提供一种混合自动重传请求HARQ反馈方法及装置。
根据本公开实施例的第一方面，提供一种混合自动重传请求HARQ反馈方法，所述方法用于机器类通信MTC设备，所述方法包括：
确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
可选地，如果所述至少一个目标PDSCH的数目为1，采用以下方式确定所述备选PUCCH：
确定备选索引值；所述备选索引值是所述备选PUCCH所对应的资源索引值；
将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
可选地，所述确定备选索引值，包括：
根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量，确定所述备选索引值；
其中，所述第一预设函数是与目标搜索空间CCE索引值相对应的预设函数，所述目标CCE索引值是与所述当前PDCCH对应的最小的CCE索引值；所述目标起始位置是用于承载HARQ结果的PUCCH信道所对应 的资源的起始位置；所述第二预设函数是与第一目标值和第二目标值对应的预设函数，所述第一目标值是与TDD MTC系统的子帧配置和当前子帧位置对应的数值，所述第二目标值是与承载当前PDCCH的物理资源块所包括的CCE的数目；所述第一目标偏移量是所述当前PDCCH承载的用于反馈HARQ结果的PUCCH资源的偏移量。
可选地，如果所述至少一个目标PDSCH的数目为多个，采用以下方式确定所述备选PUCCH：
确定第一备选索引值；所述第一备选索引值是至少一个备选PUCCH中首个备选PUCCH所对应的资源索引值；
将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH；
确定其他备选PUCCH各自对应的第二目标偏移量；其中，所述其他备选PUCCH是除了首个备选PUCCH之外的备选PUCCH，所述第二目标偏移量是当前其他备选PUCCH相对于首个备选PUCCH的资源偏移量；
根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值；
将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
可选地，所述确定其他备选PUCCH各自对应的第二目标偏移量，包括：
接收基站通过预设信令发送的与每个其他备选PUCCH对应的第二目标偏移量；或
将预设资源偏移量作为所述第二目标偏移量。
可选地，如果所述至少一个目标PDSCH的数目为多个，则采用以下方式确定所述备选PUCCH：
接收所述基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合；
将所述PUCCH集合中的所有PUCCH作为备选PUCCH。
可选地，所述根据所述至少一个目标HARQ结果，在至少一个备选 物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果，包括：
根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。
可选地，所述确定至少一个目标HARQ结果，包括：
根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果为正确或错误；或者
根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。
根据本公开实施例的第二方面，提供一种混合自动重传请求HARQ反馈装置，所述装置用于时分双工机器类通信TDD MTC设备，所述装置包括：
第一确定模块，被配置为确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
第二确定模块，被配置为根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
发送模块，被配置为通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
可选地，所述第二确定模块包括：
备选索引值确定子模块，被配置为如果所述至少一个目标PDSCH的数目为1，确定备选索引值；所述备选索引值是所述备选PUCCH所对应的资源索引值；
第一确定子模块，被配置为将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
可选地，所述备选索引值确定子模块包括：
备选索引值确定单元，被配置为根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量，确定所述备选索引值；
其中，所述第一预设函数是与目标搜索空间CCE索引值相对应的预设函数，所述目标CCE索引值是与所述当前PDCCH对应的最小的CCE索引值；所述目标起始位置是用于承载HARQ结果的PUCCH信道所对应的资源的起始位置；所述第二预设函数是与第一目标值和第二目标值对应的预设函数，所述第一目标值是与TDD MTC系统的子帧配置和当前子帧位置对应的数值，所述第二目标值是与承载当前PDCCH的物理资源块所包括的CCE的数目；所述第一目标偏移量是所述当前PDCCH承载的用于反馈HARQ结果的PUCCH资源的偏移量。
可选地，所述第二确定模块包括：
第一索引值确定子模块，被配置为如果所述至少一个目标PDSCH的数目为多个，确定第一备选索引值；所述第一备选索引值是至少一个备选PUCCH中首个备选PUCCH所对应的资源索引值；
第二确定子模块，被配置为将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH；
偏移量确定子模块，被撇子为确定其他备选PUCCH各自对应的第二目标偏移量；其中，所述其他备选PUCCH是除了首个备选PUCCH之外的备选PUCCH，所述第二目标偏移量是当前其他备选PUCCH相对于首个备选PUCCH的资源偏移量；
第二索引值确定子模块，被配置为根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值；
第三确定子模块，被配置为将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
可选地，所述偏移量确定子模块包括：
第一接收单元，被配置为接收基站通过预设信令发送的与每个其他备选PUCCH对应的第二目标偏移量；或
第二接收单元，被配置为将预设资源偏移量作为所述第二目标偏移量。
可选地，所述第二确定模块包括：
接收子模块，被配置为如果所述至少一个目标PDSCH的数目为多个，接收所述基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合；
第四确定子模块，被配置为将所述PUCCH集合中的所有PUCCH作为备选PUCCH。
可选地，所述第二确定模块包括：
第五确定子模块，被配置为根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。
可选地，所述第一确定模块包括：
第六确定子模块，被配置为根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果为正确或错误；或者
第七确定子模块，被配置为根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。
根据本公开实施例的第三方面，提供一种计算机可读存储介质，所 述存储介质存储有计算机程序，所述计算机程序用于执行上述第一方面所述的混合自动重传请求HARQ反馈方法。
根据本公开实施例的第四方面，提供一种混合自动重传请求HARQ反馈装置，所述装置用于时分双工机器类通信TDD MTC设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
本公开的实施例提供的技术方案可以包括以下有益效果：
本公开实施例中，TDD MTC设备可以先确定至少一个目标HARQ结果，其中，所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中，需要在当前子帧进行HARQ结果反馈的至少一个PDSCH。进一步地，TDD MTC设备可以根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果，从而通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。通过上述过程，可以在TDD MTC系统中将当前PDCCH所调度的所有 PDSCH所对应的HARQ结果通过不同子帧进行反馈，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
本公开实施例中，如果当前子帧需要反馈HARQ结果的PDSCH数目为1，即至少一个目标PDSCH的数目为1，则TDD MTC设备可以先确定备选索引值，将备选索引值所指示的PUCCH作为备选PUCCH，后续可以在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
本公开实施例中，备选索引值可以根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量来确定，实现简便，可用性高。
本公开实施例中，如果当前子帧需要反馈HARQ结果的PDSCH数目为多个，即至少一个目标PDSCH的数目为多个，TDD MTC设备还可以先确定第一备选索引值，将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH。进一步地，确定其他备选PUCCH各自对应的第二目标偏移量，根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值，则TDD MTC设备将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。通过上述过程，可以让TDD MTC设备快速确定多个备选PUCCH，后续可以在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
本公开实施例中，第二目标偏移量可以由基站通过预设信令为每个其他备选PUCCH进行配置，或者可以由TDD MTC设备根据预设资源偏移量来确定第二目标偏移量，可用性高。
本公开实施例中，如果当前子帧需要反馈HARQ结果的PDSCH数目为多个，即至少一个目标PDSCH的数目为多个，TDD MTC设备还可以接收基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合，TDD MTC设备可以将所述PUCCH集合中的所有PUCCH作为备选PUCCH。同样可以实现通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
本公开实施例中，可以根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，直接在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。从而在TDD MTC系统中将当前PDCCH所调度的所有PDSCH所对应的HARQ结果通过不同子帧进行反馈，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的所有PDSCH的HARQ结果反馈的目的。
本公开实施例中，根据当前PDCCH调度的所述至少一个目标PDSCH，可以确定需要通过当前子帧进行HARQ结果反馈的的至少一个目标HARQ结果可以为正确或错误，或者所述至少一个目标HARQ结果可以全为全部为未接收到所述当前PDCCH。从而优化了相关技术中在进行HARQ结果反馈时，由于通过多个PDCCH调度多个PDSCH，使得反馈的HARQ结果包括正确、错误或未接收到所述当前PDCCH的情况。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的一种混合自动重传请求HARQ反馈方法流程图。
图2是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈方法流程图。
图3是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈方法流程图。
图4是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈方法流程图。
图5是根据一示例性实施例示出的一种混合自动重传请求HARQ反馈装置框图。
图6是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图7是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图8是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图9是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图10是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图11是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图12是根据一示例性实施例示出的另一种混合自动重传请求HARQ反馈装置框图。
图13是根据一示例性实施例示出的一种用于混合自动重传请求HARQ反馈装置的一结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下 面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
在介绍本公开实施例提供的HARQ反馈方法之前，先介绍一下相关技术中TDD MTC的HARQ反馈方式。
例如表1所示，当有三次调度需要进行HARQ反馈时，可依据表1进行PUCCH传输内容的设置和对PUCCH传输资源的选择。
Figure PCTCN2018099473-appb-000001
Figure PCTCN2018099473-appb-000002
表1
其中表1中第一列表示对3次调度解调的HARQ结果，其中ACK(ACKnowledgement，正确)和NACK(Negative ACKnowledgment，错误),分别表示对调度的PDSCH解调正确和错误。DTX表示接收端设备没有收到调度PDSCH所对应的PDCCH。
表1中的第二列表示PUCCH format 1b所选择的PUCCH资源。其中
Figure PCTCN2018099473-appb-000003
分别表示由这三次调度分别推导出的对应PUCCH资源。
表1中的第三列表示由PUCCH format 1b所承载的传输内容。
比如当三次调度的解调结果分别为ACK，ACK，ACK时，根据表1，TDD MTC设备在由第三次调度所推导出的PUCCH资源上传输PUCCH format 1b，其中PUCCH format 1b的传输内容为11。相应的，在基站端，如果在由第三次调度所推导出的PUCCH资源上，监测到传输内容为11，基站则认为对应的三次调度结果为ACK，ACK，ACK。
通过表1可以看出，在相关技术中，需要三个PDCCH来分别调度三个PDSCH，在进行HARQ结果反馈时，虽然可以只通过一个PUCCH资源来反馈三个PDSCH对应的HARQ结果，但是会出现三个HARQ结果中某个HARQ结果为DTX的情况，例如三个HARQ结果分别为ACK，NACK/DTX，ACK。也就是说表1所包括的反馈HARQ结果的情况较多。
另外，在相关技术中，虽然是通过三个PDCCH来分别调度三个PDSCH，但是最终是通过一个PUCCH来进行HARQ结果反馈的。
因此对于上述HARQ反馈方式需要进一步优化。
本公开实施例提供了一种混合自动重传请求HARQ反馈方法，可以用于时分双工机器类通信TDD MTC设备，例如智慧城市中使用的智能抄表，智慧交通中的共享单车，或者智慧农业中温度湿度采集装置等。参照图1所示，图1是根据一示例性实施例示出的一种混合自动重传请求HARQ反馈方法流程图，可以包括以下步骤：
在步骤101中，确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
在步骤102中，根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
在步骤103中，通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
上述实施例中，可以在TDD MTC系统中将当前PDCCH所调度的所有PDSCH所对应的HARQ结果通过不同子帧进行反馈，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
针对上述步骤101，在TDD MTC系统中，当前PDCCH可以同时调度多个连续的PDSCH，当前PDCCH所调度的所有PDSCH对应的HARQ结果可以通过至少一个子帧进行反馈。当前PDCCH调度的所有PDSCH对 应的HARQ结果通过哪个子帧进行反馈，与TDD系统的帧格式和传输HARQ反馈的上行子帧相关，对应关系如表2所示。
Figure PCTCN2018099473-appb-000004
表2
表2中列举了在各上行链路/下行链路配置的每个上行子帧所负责反馈的下行子帧信息的集合。具体的，如果定义表2中每个上行子帧n中所对应的下行子帧信息为k,那么上行子帧n所负责反馈的下行子帧集合为n-k。
以TDD MTC系统的帧格式为1，即上行链路/下行链路配置为1，以及当前PDCCH调度了三个PDSCH为例进行说明。如果当前PDCCH调度了三个PDSCH，根据表2可以确定行链路/下行链路配置为1时，子帧2负责反馈第2减6或者第2减7子帧所承载的PDSCH对应的HARQ。即子帧2负责反馈上个无线帧的子帧5和子帧6所承载的PDSCH所对应的HARQ。子帧3负责反馈第3减4个子帧所承载的PDSCH对应的HARQ，即子帧3负责反馈上个无线帧的子帧9所承载的PDSCH所对应的HARQ。。
也就是说，如果一个PDCCH所调度的多个PDSCH分别在子帧5，子帧6和子帧9传输，那么子帧5，子帧6承载的PDSCH所对应的HARQ在下个无线帧的子帧2中反馈。子帧9所承载的PDSCH对应的HARQ在 下个无线帧的子帧3反馈。
本步骤中，TDD MTC设备可以按照相关技术确定至少一个目标HARQ结果，其中所述至少一个目标HARQ结果是至少一个目标PDSCH所对应的HARQ结果，所述至少一个PDSCH则是当前PDCCH所调度的所有PDSCH中需要通过当前子帧进行HARQ结果反馈的至少一个PDSCH。
在本公开实施例中，需要说明的是，由于当前PDCCH调度所述至少一个目标PDSCH，因此，可以确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果为正确或错误，或者所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。不会出现相关技术中通过多个PDCCH调度多个PDSCH，从而出现某一个HARQ结果为未接收到所述当前PDCCH的情况，因此，对于上述表1可以起到优化作用。后续会对表1的优化进行进一步说明。
本步骤中，TDD MTC设备可以确定至少一个目标HARQ结果可以为ACK或NACK，或者可以全为DTX。
针对上述步骤102，TDD MTC设备可以先根据多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系中所有可能的目标PUCCH资源来确定相应数目的备选PUCCH。
例如，如果预设映射关系中所有可能的目标PUCCH资源数目为1，则备选PUCCH的数目为1；如果当预设映射关系中所有可能的目标PUCCH资源数目为多个，则备选PUCCH的数目相应地为多个。
TDD MTC设备在确定了备选PUCCH之后，可以根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。
例如，多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系如表3所示。
Figure PCTCN2018099473-appb-000005
Figure PCTCN2018099473-appb-000006
表3
TDD MTC设备在根据步骤101确定了多个目标HARQ结果，以及在本步骤中确定了备选PUCCH之后，可以根据表3同时确定出目标PUCCH资源和组HARQ结果。
假设之前确定的多个目标HARQ结果为1、0，备选PUCCH对应的备选PUCCH资源的索引值为n_PUCCH 1和n_PUCCH 2，则根据表3可以确定X取值为1，则组HARQ结果为1，相应地，目标PUCCH资源的索引值就为n_PUCCH 1。
进一步地，TDD MTC设备可以根据目标PUCCH资源的索引值，确定对应的目标PUCCH，将索引值为n_PUCCH 1的PUCCH作为目标PUCCH。
针对上述步骤103，TDD MTC设备可以按照相关技术，通过当前子帧的所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
在一实施例中，TDD MTC设备可以采用以下方式中的任意一种确定备选PUCCH。
第一种方式，如果至少一个目标PDSCH的数目为1，则将备选索引值所指示的PUCCH作为所述备选PUCCH。
在此种方式下，当前子帧需要反馈HARQ结果的PDSCH数目为1，可以参照图2所示，图2是根据图1所示的实施例示出的另一种混合自动重传请求HARQ反馈方法流程图，确定备选PUCCH的过程可以包括以下步骤：
在步骤102-11中，确定备选索引值；所述备选索引值是所述备选PUCCH所对应的资源索引值；
在本步骤中，可以根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量，确定所述备选索引值。可选地，可以计算第一函数值、目标起始位置对应的数值、第二函数值和第一目标偏移量之和，得到所述备选索引值。
当然，可以采用其他计算方式，根据第一函数值、目标起始位置对应的数值、第二函数值和第一目标偏移量，计算出所述备选索引值，本公开对此不做限制。
其中，所述第一预设函数是与目标CCE索引值相对应的预设函数，所述目标CCE索引值是与所述当前PDCCH对应的最小的CCE索引值。目标起始位置是用于承载HARQ结果的PUCCH信道所对应的资源的起始位置，第二预设函数是与第一目标值和第二目标值对应的预设函数，所述第一目标值是与TDD MTC系统的子帧配置和当前子帧位置对应的数值，所述第二目标值是与承载当前PDCCH的物理资源块所包括的CCE的数目；所述第一目标偏移量是所述当前PDCCH承载的用于反馈HARQ结果的PUCCH资源的偏移量。
具体的，可以根据下列公式1或公式2确定所述备选索引值。
如果采用分布式PDCCH传输方式，则可以根据公式1计算备选索引值：
Figure PCTCN2018099473-appb-000007
如果采用集中式PDCCH传输方式，则可以根据公式2计算备选索引值：
Figure PCTCN2018099473-appb-000008
其中目标CCE索引值n CCE是当前调度所对应的PDCCH所占的最低CCE索引，目标起始位置对应的数值N PUCCH是由高层信令，例如RRC信令 所配置的PUCCH资源的起始位置，ΔARO是第一目标偏移量，
Figure PCTCN2018099473-appb-000009
表示在
Figure PCTCN2018099473-appb-000010
子帧中PDCCH物理资源块集合中所包含的ECCE(Enhanced Control Channel Element，增强的控制信道单元)的总数。其中n表示反馈HARQ的上行子帧编号。每个上行子帧所对应的k il取值如表2所示。
其中k il中的il表示k il这个值在所对应的集合中所处的编号。例如对于上行链路或下行链路的配置1中，上行子帧2对应的k il值分别为7，6。那么对于k il＝7来说，il值就为0，对于k il＝6来说，il值就为1。
另外上述公式1和公式2中的m值为某个PDSCH所处下行子帧所对应的k il值的编号。最后，Δ ARO为DCI中所指示的一个PUCCH资源偏移。特别的，在集中式PDCCH传输情况中，PUCCH资源推导公式中的
Figure PCTCN2018099473-appb-000011
是一个RB中包含的ECCE的个数，n’是与传输PDCCH的天线端口相关的参数。具体由公式3决定：
Figure PCTCN2018099473-appb-000012
其中n RNTI是由基站配置给用户的标识，
Figure PCTCN2018099473-appb-000013
表示传输该PDCCH所占用的ECCE总数。
本步骤中，TDD MTC设备可以根据公式1或公式2确定所述备选索引值。
在步骤102-12中，将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
本步骤中，TDD MTC设备将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
上述实施例中，预设多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系中，如果可能的目标PUCCH资源数目为1个，则需要推导出1个备选PUCCH。则TDD MTC设备可以先确定备选索引值，将备选索引值所指示的PUCCH作为备选PUCCH，后续可以在至 少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
第二种方式，预设多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系如表3所示。如果映射关系中可能的目标PUCCH资源数目为多个，那么此时需要推导出多个备选PUCCH。则分别确定第一索引值和第二索引值，将所述第一索引值和所述第二索引值指示的PDCCH作为备选PUCCH。
在此种方式下，参照图3所示，图3是根据图1所示的实施例示出的另一种混合自动重传请求HARQ反馈方法流程图，确定备选PUCCH的过程可以包括以下步骤：
在步骤102-21中，确定第一备选索引值；所述第一备选索引值是多个备选PUCCH中首个备选PUCCH所对应的资源索引值；
本步骤中，确定第一备选索引值的方式可以与上述步骤102-11中确定备选索引值的方式相同，在此不再赘述。
在步骤102-22中，将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH；
本步骤中，TDD MTC设备同样可以将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH。
在步骤102-23中，确定其他备选PUCCH各自对应的第二目标偏移量；其中，所述其他备选PUCCH是除了首个备选PUCCH之外的备选PUCCH，所述第二目标偏移量是当前其他备选PUCCH相对于首个备选PUCCH的资源偏移量；
本步骤中，第二目标偏移量可以由基站通过预设信令，例如高层RRC信令或物理层DCI信令发送给所述TDD MTC设备，可选地，基站配置的第二目标偏移量可以相同，例如每个第二目标偏移量均为offset；或者第二目标偏移量可以不同，由基站通过所述预设信令配置一个偏移量集合 {X1，X2，……Xi}，依次对应不同的第二目标偏移量。
或者TDD MTC设备可以直接将预设资源偏移量作为所述第二目标偏移量。
在步骤102-24中，根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值；
本步骤中，TDD MTC设备可以直接将首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量之和，作为第二备选索引值。
可选地，如果第二目标偏移量为基站通过预设信令，例如RRC信令或DCI信令配置给TDD MTC设备的，或者直接采用预设资源偏移量作为所述第二目标偏移量，则可以采用公式4计算第二备选索引值n PUCCH,i：
n PUCCH,i＝n PUCCH,0+i*offset  公式4
其中，i＝1，2，3，4……，n PUCCH,0是首个备选PUCCH的资源所在位置对应的数值，offset是第二目标偏移量。
如果基站通过预设信令，例如RRC信令或DCI信令配置一个偏移量集合{X1，X2，……Xi}，依次对应不同的第二目标偏移量，则可以采用公式4计算第二备选索引值n PUCCH,i：
n PUCCH,i＝n PUCCH,0+X i  公式5
其中，i＝1，2，3，4……，n PUCCH,0是首个备选PUCCH的资源所在位置对应的数值，Xi是第二目标偏移量。
在步骤102-25中，将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
本步骤中，TDD MTC设备采用公式4或公式5计算得到第二备选索引值后，可以直接将每个第二备选索引值指示的PUCCH作为其他备选PUCCH。
上述实施例中，预设多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系如表3所示。如果映射关系中可能的目标 PUCCH资源数目为多个，那么此时需要推导出多个备选PUCCH。则TDD MTC设备还可以先确定第一备选索引值，将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH。进一步地，确定其他备选PUCCH各自对应的第二目标偏移量，根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值，则TDD MTC设备将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。通过上述过程，可以让TDD MTC设备快速确定多个备选PUCCH，后续可以在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
第三种方式，预设多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系如表3所示。如果映射关系中可能的目标PUCCH资源数目为多个，那么此时需要推导出多个备选PUCCH。此时由基站配置多个备选PUCCH。
在此种方式下，参照图4所示，图4是根据图1所示的实施例示出的另一种混合自动重传请求HARQ反馈方法流程图，确定备选PUCCH的过程可以包括以下步骤：
在步骤102-31中，接收所述基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合；
本步骤中，基站可以通过第一目标信令，例如RRC信令为TDD MTC设备配置一个包括至少一个PUCCH的PUCCH集合，例如{n PUCCH,0，n PUCCH,1，…n PUCCH,i}。
在步骤102-32中，将所述PUCCH集合中的所有PUCCH作为备选PUCCH。
本步骤中，TDD MTC设备可以将上述PUCCH集合中的所有PUCCH作为备选PUCCH。
上述实施例中，预设多个目标HARQ结果，目标PUCCH资源和组 HARQ反馈之间的预设映射关系如表3所示。如果映射关系中可能的目标PUCCH资源数目为多个，那么此时需要推导出多个备选PUCCH。则TDD MTC设备还可以接收基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合，TDD MTC设备可以将所述PUCCH集合中的所有PUCCH作为备选PUCCH。同样可以实现通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
在一实施例中，TDD MTC设备确定每个目标PDSCH对应的目标HARQ结果，目标HARQ结果可以为ACK或NACK，或者所有目标HARQ结果全未接收到所述当前PDCCH。
进一步地，TDD MTC设备确定需要通过多个目标HARQ结果，目标PUCCH资源和组HARQ反馈之间的预设映射关系中所有可能的目标PUCCH资源数目来确定备选的PUCCH资源数目备选PUCCH的数目与所有可能的目标PUCCH资源的数目相同。
如果所有可能的目标PUCCH资源的数目为1，则备选PUCCH的数目也为1，可以采用公式1或公式2计算备选索引值，将所述备选索引值对应的PUCCH作为所述备选PUCCH。
如果所有可能的目标PUCCH资源的数目为多个，则可以先确定第一备选索引值，确定第一备选索引值的方式与确定备选索引值的方式相同，在此不再赘述。TDD MTC设备将所述第一备选索引值对应的PUCCH作为首个备选PUCCH。
然后，确定其他备选PUCCH各自对应的第二目标偏移量，第二目标偏移量可以由基站通过预设信令，例如高层RRC信令或物理层DCI信令发送给所述TDD MTC设备；或者直接将预设资源偏移量作为所述第二目标偏移量。TDD MTC设备将所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量之和，作为第二备选索引值，从而将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
如果所有可能的目标PUCCH资源的数目为多个，还可以由基站直 接通过第一目标信令，例如RRC信令为TDD MTC设备配置一个包括至少一个PUCCH的PUCCH集合，则TDD MTC设备将该PUCCH集合中所包括的所有PUCCH作为备选PUCCH。
在本公开实施例中，TDD MTC设备采用上述方式确定了备选PUCCH之后，根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。确定的方式与上述步骤102中，确定目标PUCCH和组HARQ结果的方式相同，在此不再赘述。
TDD MTC设备在确定了目标PUCCH和组HARQ结果之后，就可以直接通过当前子帧的所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
上述实施例中，可以在TDD MTC系统中将当前PDCCH所调度的所有PDSCH所对应的HARQ结果通过不同子帧进行反馈，实现了通过一个PDCCH选择对应的至少一个目标PUCCH进行所调度的PDSCH的HARQ结果反馈的目的。
在一实施例中，由于当前PDCCH调度所述至少一个目标PDSCH，因此，可以确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果为正确或错误，或者所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。不会出现相关技术中通过多个PDCCH调度多个PDSCH，从而出现某一个HARQ结果为未接收到所述当前PDCCH的情况，因此，对于上述表1可以起到优化作用。
举例说明如下：
例子1，当前PDCCH调度了2个PDSCH，目标HARQ反馈，目标PUCCH资源和组反馈结果的映射关系预设如表4所示。此时只有一个备选PUCCH，则2个PDSCH对应的HARQ结果需要通过备选PUCCH承载的内容，也就是说此时备选PUCCH作为目标PUCCH，2个PDSCH对应的HARQ结果作为组HARQ结果进行反馈。
Figure PCTCN2018099473-appb-000014
表4
那么根据表4可以看出，由于两个PDSCH均为当前PDCCH所调度的，所以不会在表4中出现DTX、ACK或NACK、DTX这种情况，即不会出现某个PDSCH对应的HARQ结果为DTX的情况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术中的上述表格。
当前PDCCH调度了2个PDSCH，目标HARQ反馈，目标PUCCH资源和组反馈结果的映射关系预设如表4所示。此时有两个备选PUCCH，则1个PDSCH对应的HARQ结果需要通过目标PUCCH承载的内容，即组HARQ结果反馈，另1个PDSCH对应的HARQ结果需要通过目标PUCCH资源来反馈。
Figure PCTCN2018099473-appb-000015
表5
同样根据表5可以看出，由于两个PDSCH均为当前PDCCH所调度的，所以不会在表5中出现DTX、ACK(或NACK)，或者NACK(或ACK)、DTX这种情况，即不会出现某个PDSCH对应的HARQ结果为DTX的情况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术中的上述表格。
当前PDCCH调度了2个PDSCH，目标HARQ反馈，目标PUCCH资源和组反馈结果的映射关系预设如表6所示。此时有两个备选PUCCH，2个PDSCH对应的HARQ结果均需要通过目标PUCCH承载的内容，即组HARQ结果反馈。
Figure PCTCN2018099473-appb-000016
表6
同样根据表6可以看出，由于两个PDSCH均为当前PDCCH所调度的，所以不会在表6中出现DTX、ACK(或NACK)，或者NACK(或ACK)、DTX这种情况，即不会出现某个PDSCH对应的HARQ结果为DTX的情 况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术中的上述表格。
例子2，当前PDCCH调度了3个PDSCH，目标HARQ反馈，目标PUCCH资源和组反馈结果的映射关系预设如表7所示。此时只有2个备选PUCCH，则2个PDSCH对应的HARQ结果需要通过目标PUCCH承载，即组HARQ结果反馈，另1个PDSCH对应的HARQ结果需要通过目标PUCCH资源来反馈。
Figure PCTCN2018099473-appb-000017
表7
同样根据表7可以看出，由于3个PDSCH均为当前PDCCH所调度的，所以不会在表7中出现某个PDSCH对应的HARQ结果为DTX的情况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术中的上述表格。
当前PDCCH调度了3个PDSCH，目标HARQ反馈，目标PUCCH 资源和组反馈结果的映射关系预设如表8所示。此时有3个备选PUCCH，目标HARQ反馈结果由目标PUCCH资源选择和组反馈结果联合表征。。
Figure PCTCN2018099473-appb-000018
表8
同样根据表8可以看出，由于3个PDSCH均为当前PDCCH所调度的，所以不会在表8中出现某个PDSCH对应的HARQ结果为DTX的情况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术中的上述表格。
当前PDCCH调度了3个PDSCH，目标HARQ反馈，目标PUCCH资源和组反馈结果的映射关系预设如表9所示。此时有4个备选PUCCH， 则1个PDSCH对应的HARQ结果需要通过目标PUCCH承载的内容，即组HARQ结果反馈，另2个PDSCH对应的HARQ结果需要通过目标PUCCH资源来反馈。
Figure PCTCN2018099473-appb-000019
表9
同样根据表9可以看出，由于3个PDSCH均为当前PDCCH所调度的，所以不会在表9中出现某个PDSCH对应的HARQ结果为DTX的情况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术中的上述表格。
例子3，当前PDCCH调度了4个PDSCH，目标HARQ反馈，目标PUCCH资源和组反馈结果的映射关系预设如表10所示。如果有4个备选PUCCH，则2个PDSCH对应的HARQ结果需要通过目标PUCCH承载的内容，即组HARQ结果反馈，另2个PDSCH对应的HARQ结果需要通过目标PUCCH资源来反馈。
Figure PCTCN2018099473-appb-000020
表10
同样地，根据表10可以看出，由于4个PDSCH均为当前PDCCH所调度的，所以不会在表10中出现某个PDSCH对应的HARQ结果为DTX的情况，只有可能为ACK或NACK，或者全部为DTX。优化了相关技术 中的上述表格。
上述实施例中，根据当前PDCCH调度的所述至少一个目标PDSCH，可以确定需要通过当前子帧进行HARQ结果反馈的的至少一个目标HARQ结果可以为正确或错误，或者所述至少一个目标HARQ结果可以全为全部为未接收到所述当前PDCCH。从而优化了相关技术中在进行HARQ结果反馈时，由于通过多个PDCCH调度多个PDSCH，使得反馈的HARQ结果包括正确、错误或未接收到所述当前PDCCH的情况。
与前述应用功能实现方法实施例相对应，本公开还提供了应用功能实现装置、及相应的MTC终端的实施例。
参照图5，图5是根据一示例性实施例示出的一种混合自动重传请求HARQ反馈装置框图，所述装置用于时分双工机器类通信TDD MTC设备，所述装置包括：
第一确定模块210，被配置为确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
第二确定模块220，被配置为根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
发送模块230，被配置为通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
参照图6，图6是根据图5所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述第二确定模块220包括：
备选索引值确定子模块221，被配置为如果所述至少一个目标 PDSCH的数目为1，确定备选索引值；所述备选索引值是所述备选PUCCH所对应的资源索引值；
第一确定子模块222，被配置为将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
参照图7，图7是根据图6所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述备选索引值确定子模块221包括：
备选索引值确定单元2211，被配置为根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量，确定所述备选索引值；
其中，所述第一预设函数是与目标搜索空间CCE索引值相对应的预设函数，所述目标CCE索引值是与所述当前PDCCH对应的最小的CCE索引值；所述目标起始位置是用于承载HARQ结果的PUCCH信道所对应的资源的起始位置；所述第二预设函数是与第一目标值和第二目标值对应的预设函数，所述第一目标值是与TDD MTC系统的子帧配置和当前子帧位置对应的数值，所述第二目标值是与承载当前PDCCH的物理资源块所包括的CCE的数目；所述第一目标偏移量是所述当前PDCCH承载的用于反馈HARQ结果的PUCCH资源的偏移量。
参照图8，图8是根据图5所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述第二确定模块220包括：
第一索引值确定子模块223，被配置为如果所述至少一个目标PDSCH的数目为多个，确定第一备选索引值；所述第一备选索引值是至少一个备选PUCCH中首个备选PUCCH所对应的资源索引值；
第二确定子模块224，被配置为将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH；
偏移量确定子模块225，被撇子为确定其他备选PUCCH各自对应的第二目标偏移量；其中，所述其他备选PUCCH是除了首个备选PUCCH之外的备选PUCCH，所述第二目标偏移量是当前其他备选PUCCH相对于 首个备选PUCCH的资源偏移量；
第二索引值确定子模块226，被配置为根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值；
第三确定子模块227，被配置为将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
参照图9，图9是根据图8所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述偏移量确定子模块225包括：
第一接收单元2251，被配置为接收基站通过预设信令发送的与每个其他备选PUCCH对应的第二目标偏移量；或
第二接收单元2252，被配置为将预设资源偏移量作为所述第二目标偏移量。
参照图10，图10是根据图5所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述第二确定模块220包括：
接收子模块228，被配置为如果所述至少一个目标PDSCH的数目为多个，接收所述基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合；
第四确定子模块229，被配置为将所述PUCCH集合中的所有PUCCH作为备选PUCCH。
参照图11，图11是根据图5所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述第二确定模块220包括：
第五确定子模块2210，被配置为根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。
参照图12，图12是根据图5所示实施例的基础上示出的另一种混合自动重传请求HARQ反馈装置框图，所述第一确定模块210包括：
第六确定子模块211，被配置为根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标 HARQ结果为正确或错误；或者
第七确定子模块212，被配置为根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本公开方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
相应地，本公开还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行上述任一所述的混合自动重传请求HARQ反馈方法。
相应地，本公开还提供了一种混合自动重传请求HARQ反馈装置，所述装置用于时分双工机器类通信TDD MTC设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
如图13所示，图13是根据一示例性实施例示出的一种混合自动重传请求HARQ反馈装置1300的一结构示意图。装置1300可以被提供为一NB-IOT设备。参照图13，装置1300包括处理组件1322、无线发射/接收组件1324、天线组件1326、以及无线接口特有的信号处理部分，处理组件1322可进一步包括一个或多个处理器。
处理组件1322中的其中一个处理器可以被配置为用于执行上述任一所述的用于时分双工机器类通信TDD MTC设备的混合自动重传请求HARQ反馈方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或者惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (18)

  1. 一种混合自动重传请求HARQ反馈方法，其特征在于，所述方法用于时分双工机器类通信TDD MTC设备，所述方法包括：
    确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
    根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
    通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
  2. 根据权利要求1所述的方法，其特征在于，如果所述至少一个目标PDSCH的数目为1，采用以下方式确定所述备选PUCCH：
    确定备选索引值；所述备选索引值是所述备选PUCCH所对应的资源索引值；
    将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
  3. 根据权利要求2所述的方法，其特征在于，所述确定备选索引值，包括：
    根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量，确定所述备选索引值；
    其中，所述第一预设函数是与目标搜索空间CCE索引值相对应的预设函数，所述目标CCE索引值是与所述当前PDCCH对应的最小的CCE索引值；所述目标起始位置是用于承载HARQ结果的PUCCH信道所对应的资源的起始位置；所述第二预设函数是与第一目标值和第二目标值对应的 预设函数，所述第一目标值是与TDD MTC系统的子帧配置和当前子帧位置对应的数值，所述第二目标值是与承载当前PDCCH的物理资源块所包括的CCE的数目；所述第一目标偏移量是所述当前PDCCH承载的用于反馈HARQ结果的PUCCH资源的偏移量。
  4. 根据权利要求1所述的方法，其特征在于，如果所述至少一个目标PDSCH的数目为多个，采用以下方式确定所述备选PUCCH：
    确定第一备选索引值；所述第一备选索引值是至少一个备选PUCCH中首个备选PUCCH所对应的资源索引值；
    将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH；
    确定其他备选PUCCH各自对应的第二目标偏移量；其中，所述其他备选PUCCH是除了首个备选PUCCH之外的备选PUCCH，所述第二目标偏移量是当前其他备选PUCCH相对于首个备选PUCCH的资源偏移量；
    根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值；
    将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
  5. 根据权利要求4所述的方法，其特征在于，所述确定其他备选PUCCH各自对应的第二目标偏移量，包括：
    接收基站通过预设信令发送的与每个其他备选PUCCH对应的第二目标偏移量；或
    将预设资源偏移量作为所述第二目标偏移量。
  6. 根据权利要求1所述的方法，其特征在于，如果所述至少一个目标PDSCH的数目为多个，则采用以下方式确定所述备选PUCCH：
    接收所述基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合；
    将所述PUCCH集合中的所有PUCCH作为备选PUCCH。
  7. 根据权利要求1所述的方法，其特征在于，所述根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个 目标PUCCH和组HARQ结果，包括：
    根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。
  8. 根据权利要求1所述的方法，其特征在于，所述确定至少一个目标HARQ结果，包括：
    根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果为正确或错误；或者
    根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。
  9. 一种混合自动重传请求HARQ反馈装置，其特征在于，所述装置用于时分双工机器类通信TDD MTC设备，所述装置包括：
    第一确定模块，被配置为确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
    第二确定模块，被配置为根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
    发送模块，被配置为通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
  10. 根据权利要求9所述的装置，其特征在于，所述第二确定模块包括：
    备选索引值确定子模块，被配置为如果所述至少一个目标PDSCH的数目为1，确定备选索引值；所述备选索引值是所述备选PUCCH所对应的资源索引值；
    第一确定子模块，被配置为将所述备选索引值所指示的PUCCH作为所述备选PUCCH。
  11. 根据权利要求10所述的装置，其特征在于，所述备选索引值确定子模块包括：
    备选索引值确定单元，被配置为根据第一预设函数的第一函数值、目标起始位置对应的数值、第二预设函数的第二函数值和第一目标偏移量，确定所述备选索引值；
    其中，所述第一预设函数是与目标搜索空间CCE索引值相对应的预设函数，所述目标CCE索引值是与所述当前PDCCH对应的最小的CCE索引值；所述目标起始位置是用于承载HARQ结果的PUCCH信道所对应的资源的起始位置；所述第二预设函数是与第一目标值和第二目标值对应的预设函数，所述第一目标值是与TDD MTC系统的子帧配置和当前子帧位置对应的数值，所述第二目标值是与承载当前PDCCH的物理资源块所包括的CCE的数目；所述第一目标偏移量是所述当前PDCCH承载的用于反馈HARQ结果的PUCCH资源的偏移量。
  12. 根据权利要求9所述的装置，其特征在于，所述第二确定模块包括：
    第一索引值确定子模块，被配置为如果所述至少一个目标PDSCH的数目为多个，确定第一备选索引值；所述第一备选索引值是至少一个备选PUCCH中首个备选PUCCH所对应的资源索引值；
    第二确定子模块，被配置为将所述第一备选索引值所指示的PUCCH作为所述首个备选PUCCH；
    偏移量确定子模块，被撇子为确定其他备选PUCCH各自对应的第二目标偏移量；其中，所述其他备选PUCCH是除了首个备选PUCCH之外 的备选PUCCH，所述第二目标偏移量是当前其他备选PUCCH相对于首个备选PUCCH的资源偏移量；
    第二索引值确定子模块，被配置为根据所述首个备选PUCCH的资源所在位置对应的数值和所述第二目标偏移量，确定第二备选索引值；
    第三确定子模块，被配置为将所述第二备选索引值所指示的PUCCH作为所述其他备选PUCCH。
  13. 根据权利要求12所述的装置，其特征在于，所述偏移量确定子模块包括：
    第一接收单元，被配置为接收基站通过预设信令发送的与每个其他备选PUCCH对应的第二目标偏移量；或
    第二接收单元，被配置为将预设资源偏移量作为所述第二目标偏移量。
  14. 根据权利要求9所述的装置，其特征在于，所述第二确定模块包括：
    接收子模块，被配置为如果所述至少一个目标PDSCH的数目为多个，接收所述基站通过第一目标信令发送的包括至少一个PUCCH的PUCCH集合；
    第四确定子模块，被配置为将所述PUCCH集合中的所有PUCCH作为备选PUCCH。
  15. 根据权利要求9所述的装置，其特征在于，所述第二确定模块包括：
    第五确定子模块，被配置为根据多个目标HARQ结果、目标PUCCH资源和组HARQ结果之间的预设映射关系，在至少一个备选PUCCH中确定一个目标PUCCH和组HARQ结果。
  16. 根据权利要求9所述的装置，其特征在于，所述第一确定模块包括：
    第六确定子模块，被配置为根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ 结果为正确或错误；或者
    第七确定子模块，被配置为根据当前PDCCH调度的所述至少一个目标PDSCH，确定所述至少一个目标PDSCH所各自对应的所述目标HARQ结果全部为未接收到所述当前PDCCH。
  17. 一种计算机可读存储介质，其特征在于，所述存储介质存储有计算机程序，所述计算机程序用于执行上述权利要求1-8任一所述的混合自动重传请求HARQ反馈方法。
  18. 一种混合自动重传请求HARQ反馈装置，其特征在于，所述装置用于时分双工机器类通信TDD MTC设备，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    确定至少一个目标HARQ结果；所述至少一个目标HARQ结果是至少一个目标物理下行共享信道PDSCH所各自对应的HARQ结果，所述至少一个目标PDSCH是由当前物理下行控制信道PDCCH所调度的所有PDSCH中需要在当前子帧进行HARQ结果反馈的至少一个PDSCH；
    根据所述至少一个目标HARQ结果，在至少一个备选物理上行控制信道PUCCH中确定一个目标PUCCH和组HARQ结果；所述目标PUCCH是所对应的目标PUCCH资源用于承载组HARQ结果的PUCCH，所述组HARQ结果和所述目标PUCCH资源用于表征所述多个目标HARQ结果；
    通过所述目标PUCCH资源承载所述组HARQ结果，并发送所述目标PUCCH到基站。
PCT/CN2018/099473 2018-08-08 2018-08-08 混合自动重传请求harq反馈方法及装置 Ceased WO2020029144A1 (zh)

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