WO2020156002A1 - 通信方法及通信装置 - Google Patents

通信方法及通信装置 Download PDF

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Publication number
WO2020156002A1
WO2020156002A1 PCT/CN2019/129992 CN2019129992W WO2020156002A1 WO 2020156002 A1 WO2020156002 A1 WO 2020156002A1 CN 2019129992 W CN2019129992 W CN 2019129992W WO 2020156002 A1 WO2020156002 A1 WO 2020156002A1
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Prior art keywords
data channel
downlink data
channel
information
uplink
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PCT/CN2019/129992
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English (en)
French (fr)
Inventor
马蕊香
官磊
李�远
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP19913179.8A priority Critical patent/EP3905815A4/en
Publication of WO2020156002A1 publication Critical patent/WO2020156002A1/zh
Priority to US17/386,262 priority patent/US20210360657A1/en
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    • 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
    • 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
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H04L1/0004—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to control information
    • 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
    • H04L1/1812—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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
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    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
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    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the embodiments of the present application relate to the field of mobile communication technology, and in particular, to a communication method and communication device.
  • the network device needs to send a physical downlink control channel (PDCCH) to the terminal device.
  • PDCCH physical downlink control channel
  • the network device sends the PDCCH to the terminal device.
  • the PDCCH is used to indicate physical downlink shared channel (PDSCH) related information, such as carrier indicator information and frequency domain resource indicator information , Time-domain resource indication information, etc.
  • the PDCCH may also include relevant information about the physical uplink control channel (PUCCH) where the feedback information corresponding to the PDSCH is located, such as the timing indication information from the PDSCH to sending the feedback.
  • the indication information is used to indicate the number of slots (slots) in which the terminal device receives the corresponding PUCCH interval from the PDSCH.
  • the terminal device sends the PDSCH to the network device on the nth slot, and the timing indication information is K1 slots, then The terminal device sends the PUCCH to the network device on the n+K1 slot. After receiving the PDCCH, the terminal device sends the PDSCH to the network device according to the PDCCH.
  • the PDCCH also contains PUCCH related information, and the terminal device also sends the PUCCH to the network device according to the PDCCH.
  • the network device sends the PDCCH to the terminal device.
  • the PDCCH is used to indicate physical uplink shared channel (PUSCH) related information, such as carrier indication information, frequency domain resource indication information, and time domain resource indication Information, frequency hopping indication (frequency hopping), etc., where the time domain resource indication information is used to indicate a K2 indication value, indicating the number of slots between PDCCH reception and PUSCH transmission.
  • PUSCH physical uplink shared channel
  • the terminal device After receiving the PDCCH in the nth slot, the terminal device sends the PUSCH to the network device on the n+K2th slot according to the PDCCH.
  • closed-loop business communication refers to the simultaneous existence of uplink and downlink data during the communication process. If the above-mentioned uplink and downlink data transmission mode is adopted, the terminal equipment needs to receive two PDCCHs, one of which is used to schedule PDSCH, and the other is used to schedule PUSCH. In this process, multiple signaling links are required, such as PDCCH to PDSCH, PDCCH to PUSCH and other signaling links. If there is an error in one link, the overall reliability of the service cannot be guaranteed.
  • the present application provides a communication method and communication device, which realize the purpose of ensuring service reliability in closed-loop service communication by reducing signaling links in the communication process.
  • the embodiments of the present application provide a communication method, which can be applied to a terminal device or a chip in the terminal device.
  • the method is described below by taking the application to a terminal device as an example.
  • the method includes: the terminal device receives the instruction information sent by the network device through high-level signaling, and receives the downlink data channel sent by the network device according to the instruction information.
  • the downlink data channel carries control information, and the uplink channel is sent to the network device according to the control information.
  • the link of network equipment sending downlink PDCCH to terminal equipment and the link of network equipment sending uplink PDCCH to terminal equipment are removed, but only one downlink data channel and one uplink channel are used to realize closed-loop service communication and signaling There are few links, which greatly guarantees service reliability and reduces time delay.
  • the terminal equipment does not rely on the PDCCH sent by the network equipment to receive the downlink data signal, but receives the downlink data channel according to the indication information in the high-level signaling, which reduces the PDCCH overhead and avoids PDCCH congestion when multiple terminal equipment transmits services at the same time.
  • the terminal device does not rely on the PDCCH to send the uplink channel to the network device, but sends the uplink channel to the network device according to the control information in the received downlink data channel, such as the uplink data channel or the uplink control channel, which further reduces the PDCCH Overhead.
  • the downlink data channel contains control information, and the network equipment can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check to the PDCCH separately, which reduces Overhead.
  • the uplink channel includes an uplink control channel
  • the control information includes at least one of the following: transmission power control information of the uplink control channel, timing indication information of the uplink control channel, and The resource indication information of the control channel, the zero-power channel state information reference signal trigger, or the first downlink allocation index DAI, where the timing indication information is used to instruct the terminal equipment to start from receiving the downlink data channel to sending the uplink The time interval between control channels.
  • the network device carries the control information required by the uplink control channel in the downlink data channel and sends it to the terminal device, so that after receiving the downlink data channel, the terminal device parses the control information from the downlink data channel and sends the uplink data channel.
  • Control channel the transmission of the uplink control channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the uplink channel includes an uplink data channel
  • the control information includes at least one of the following: carrier indication information of the uplink data channel, bandwidth part indication information of the uplink data channel, and Frequency domain resource indication information of the data channel, time domain resource indication information of the uplink data channel, frequency domain frequency hopping indication of the uplink data channel, modulation and coding mode MCS of the uplink data channel, and the uplink data channel
  • the new data indicates the NDI, the redundancy version of the uplink data channel, the HARQ process number of the hybrid automatic repeat request for the uplink data channel, the precoding information and the number of layers of the uplink data channel, and the number of layers of the uplink data channel Transmission power control information, antenna port information of the uplink data channel, channel sounding reference signal SRS resource indication information, SRS request information, channel state measurement information trigger request, or second downlink allocation index DAI.
  • the network equipment carries the control information required by the uplink data channel in the downlink data channel and sends it to the terminal device, so that after receiving the downlink data channel, the terminal device parses the control information from the downlink data channel and sends the uplink data channel.
  • the transmission of the uplink control channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the method before the terminal device sends the uplink channel to the network device according to the control information, the method further includes: the terminal device does not receive a physical downlink control channel.
  • the network device does not send the PDCCH for scheduling the downlink data channel to the terminal device, and the terminal device only receives the downlink data channel according to the indication information sent by the network device through high-level signaling.
  • various information required by the terminal device to receive the downlink data channel is carried in the indication information, and the network device does not need to send the PDCCH to the terminal device, which reduces the PDCCH overhead to a certain extent.
  • the indication information includes at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and virtual resource block of the downlink data channel
  • the redundancy version the initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel or the The transmission configuration indication of the downlink data channel.
  • the network equipment carries the indication information required by the downlink data channel in the high-level signaling and sends it to the terminal equipment, so that after receiving the high-level signaling, the terminal equipment parses the indication information from the high-level signaling and receives the downlink Data channel.
  • the reception of the downlink data channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the terminal device before the terminal device receives the downlink data channel sent by the network device according to the indication information, it further includes: the terminal device receives the physical downlink control of the semi-persistent scheduling sent by the network device Channel; the terminal device receiving the downlink data channel sent by the network device according to the instruction information includes: the terminal device receiving the network device according to the physical downlink control channel of the semi-persistent scheduling and the instruction information Downlink data channel sent by the device.
  • the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device, and sends indication information to the terminal device through high-level signaling.
  • the PDCCH sent by the network equipment is the semi-persistent scheduling physical downlink control channel
  • the semi-persistent scheduled PDCCH only needs to be sent once, in a period of time thereafter, the downlink data channel can be received according to the indication information of the PDCCH in combination with the indication information. It is not necessary to receive the PDCCH every time before receiving the downlink data channel. , To a certain extent, reduce the PDCCH overhead.
  • the semi-persistent scheduling physical downlink control channel carries at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and The mapping type of the virtual resource block to the physical resource block of the data channel, the physical resource block bundling size of the downlink data channel, the modulation and coding mode MCS of the downlink data channel, the new data indicator NDI of the downlink data channel, The initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel, or the downlink data channel
  • the transmission configuration indication; the indication information includes at least one of the following information: the transmission period of the downlink data channel, the number of HARQ processes corresponding to the downlink data channel's hybrid automatic repeat request, or the physical corresponding to the downlink data channel
  • the format of the uplink control channel PUCCH resource The format of the uplink control channel PUCCH
  • the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device, and sends indication information to the terminal device through high-level signaling. Since the semi-persistent scheduling PDCCH is only received once, the downlink data channel can be received according to the semi-persistent scheduling PDCCH for a period of time, instead of receiving the PDCCH every time to receive the downlink data channel, thus reducing the PDCCH overhead and avoiding PDCCH congestion occurs when multiple terminal devices transmit services at the same time.
  • the downlink data channel contains control information
  • the network device can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check (cyclic redundancy check, CRC) to the PDCCH. ), which reduces overhead.
  • CRC cyclic redundancy check
  • control information includes a hybrid automatic repeat request HARQ process number of the downlink data channel; or, the indication information includes a hybrid automatic repeat request HARQ process number of the downlink data channel.
  • the method before the terminal device receives the downlink data channel sent by the network device according to the indication information, the method further includes: the terminal device detects the demodulation reference signal DMRS sent by the network device.
  • the terminal device detects whether the network device has sent the downlink data channel by detecting the DMRS. After determining that the network device has sent the downlink data channel, it receives the downlink data channel through the indication information.
  • DMRS detection is sequence detection, which can reduce the complexity of terminal equipment implementation, and does not need to assume that downlink data exists for decoding, which can reduce time delay.
  • the embodiments of the present application provide a communication method, which can be applied to a network device or a chip in the network device.
  • the method is described below by taking the application to a network device as an example.
  • the method includes: the network device sends indication information to a terminal device through high-level signaling, sends a downlink data channel carrying control information to the terminal device, and receives an uplink channel ,
  • the uplink channel is sent by the terminal equipment according to the control information.
  • the uplink channel includes an uplink control channel
  • the control information includes at least one of the following: transmission power control information of the uplink control channel, timing indication information of the uplink control channel, and The resource indication information of the control channel, the zero-power channel state information reference signal trigger, or the first downlink allocation index DAI, where the timing indication information is used to instruct the terminal equipment to start from receiving the downlink data channel to sending the uplink The time interval between control channels.
  • the network device carries the control information required by the uplink control channel in the downlink data channel and sends it to the terminal device, so that after receiving the downlink data channel, the terminal device parses the control information from the downlink data channel and sends the uplink data channel.
  • Control channel the transmission of the uplink control channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the uplink channel includes an uplink data channel
  • the control information includes at least one of the following: carrier indication information of the uplink data channel, bandwidth part indication information of the uplink data channel, and Frequency domain resource indication information of the data channel, time domain resource indication information of the uplink data channel, frequency domain frequency hopping indication of the uplink data channel, modulation and coding mode MCS of the uplink data channel, and the uplink data channel
  • the new data indicates the NDI, the redundancy version of the uplink data channel, the HARQ process number of the hybrid automatic repeat request for the uplink data channel, the precoding information and the number of layers of the uplink data channel, and the number of layers of the uplink data channel Transmission power control information, antenna port information of the uplink data channel, channel sounding reference signal SRS resource indication information, SRS request information, channel state measurement information trigger request, or second downlink allocation index DAI.
  • the network equipment carries the control information required by the uplink data channel in the downlink data channel and sends it to the terminal device, so that after receiving the downlink data channel, the terminal device parses the control information from the downlink data channel and sends the uplink data channel.
  • the transmission of the uplink control channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the network device before the network device sends a downlink data channel carrying control information to the terminal device, it further includes: the network device does not send a physical downlink control channel to the terminal device.
  • the network equipment carries the indication information required by the downlink data channel in the high-level signaling and sends it to the terminal equipment, so that after receiving the high-level signaling, the terminal equipment parses the indication information from the high-level signaling and receives the downlink Data channel, the reception of this downlink data channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent
  • the indication information includes at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and virtual resource block of the downlink data channel
  • the redundancy version the initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel or the The transmission configuration indication of the downlink data channel.
  • the network equipment carries the indication information required by the downlink data channel in the high-level signaling and sends it to the terminal equipment, so that after receiving the high-level signaling, the terminal equipment parses the indication information from the high-level signaling and receives the downlink Data channel.
  • the reception of the downlink data channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the method before the network device receives the uplink channel sent by the terminal device according to the control information, the method further includes: the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device.
  • the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device, and sends indication information to the terminal device through high-level signaling. Since the semi-persistent scheduling PDCCH is received only once, the downlink data channel can be received according to the SPS PDCCH for a period of time, instead of receiving the PDCCH every time to receive the downlink data channel, it reduces the PDCCH overhead and avoids the same time PDCCH congestion occurs when multiple terminal devices transmit services.
  • the downlink data channel contains control information
  • the network device can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check (cyclic redundancy check, CRC) to the PDCCH. ), which reduces overhead.
  • CRC cyclic redundancy check
  • the semi-persistent scheduling physical downlink control channel carries at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and The mapping type of the virtual resource block to the physical resource block of the data channel, the physical resource block bundling size of the downlink data channel, the modulation and coding mode MCS of the downlink data channel, the new data indicator NDI of the downlink data channel, The initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel, or the downlink data channel
  • the transmission configuration indication; the indication information includes at least one of the following information: the transmission period of the downlink data channel, the number of HARQ processes corresponding to the downlink data channel's hybrid automatic repeat request, or the physical corresponding to the downlink data channel
  • the format of the uplink control channel PUCCH resource The format of the uplink control channel PUCCH
  • the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device, and sends instruction information to the terminal device through high-level signaling. Since the semi-persistent scheduling PDCCH is received only once, the downlink data channel can be received according to the SPS PDCCH for a period of time, instead of receiving the PDCCH every time to receive the downlink data channel, it reduces the PDCCH overhead and avoids the same time PDCCH congestion occurs when multiple terminal devices transmit services. Further, the downlink data channel contains control information, and the network device can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check (cyclic redundancy check, CRC) to the PDCCH. ), which reduces overhead.
  • CRC cyclic redundancy check
  • control information includes a hybrid automatic repeat request HARQ process number of the downlink data channel; or, the indication information includes a hybrid automatic repeat request HARQ process number of the downlink data channel.
  • the method before the network device sends a downlink data channel carrying control information to the terminal device, the method further includes: the network device sends a demodulation reference signal DMRS to the terminal device.
  • the terminal device detects whether the network device has sent the downlink data channel by detecting the DMRS. After determining that the network device has sent the downlink data channel, it receives the downlink data channel through the indication information.
  • DMRS detection is sequence detection, which can reduce the complexity of terminal equipment implementation, and does not need to assume that downlink data exists for decoding, which can reduce time delay.
  • an embodiment of the present application provides a communication device that has the behavior function of the terminal device in the foregoing method embodiment.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the module can be software and/or hardware.
  • the structure of the communication device includes a processor and a transceiver, and the processor is configured to control the transceiver to receive the instruction information sent by the network device through high-level signaling, and receive the network according to the instruction information.
  • a downlink data channel sent by a device where the downlink data channel carries control information and sends an uplink channel to the network device according to the control information.
  • an embodiment of the present application provides a communication device, which is used to implement the function of the behavior of the network device in the actual method described above.
  • the functions can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the structure of the communication device includes a processor and a transceiver, and the processor is used for the transceiver to send indication information to the terminal device through high-level signaling, and to send a downlink data channel carrying control information to the terminal device, Receiving an uplink channel, the uplink channel being sent by the terminal device according to the control information.
  • the embodiments of the present application provide a computer program product containing instructions, which when run on a terminal device, cause the terminal device computer to execute the method in the first aspect or various possible implementations of the first aspect. .
  • embodiments of the present application provide a computer program product containing instructions, which when run on a network device, enable the network device to execute the foregoing second aspect or the methods in the various possible implementation manners of the second aspect.
  • embodiments of the present application provide a computer-readable storage medium that stores instructions in the computer-readable storage medium, which when run on a terminal device, causes the terminal device to execute the first aspect or the first aspect described above.
  • a computer-readable storage medium that stores instructions in the computer-readable storage medium, which when run on a terminal device, causes the terminal device to execute the first aspect or the first aspect described above.
  • an embodiment of the present application provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a network device, cause the network device to execute the second aspect or the second aspect described above Of the various possible implementations.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the functions of the network device or the terminal device in the foregoing method.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • the terminal device receives the instruction information sent by the device on the network through high-level signaling, receives the downlink data channel that carries the control information sent by the network device according to the instruction information, and according to the control information Send the uplink channel to the network device.
  • the link that the network device sends the downlink PDCCH to the terminal device and the link that the network device sends the uplink PDCCH to the terminal device are removed, but only one downlink data channel and one uplink channel are used to realize closed-loop service communication and signaling links To a great extent, it guarantees service reliability and reduces time delay.
  • the terminal equipment does not rely on the PDCCH sent by the network equipment to receive the downlink data signal, but receives the downlink data channel according to the indication information in the high-level signaling, which reduces the PDCCH overhead and avoids PDCCH congestion when multiple terminal equipment transmits services at the same time.
  • Phenomenon The terminal device does not rely on the PDCCH to send the uplink channel to the network device, but sends the uplink channel to the network device according to the control information in the received downlink data channel, such as the uplink data channel or the uplink control channel, which further reduces the PDCCH Overhead.
  • the downlink data channel contains control information, and the network equipment can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check to the PDCCH separately, which reduces Overhead.
  • Figure 1 is a schematic diagram of closed-loop service communication
  • FIG. 2 is a schematic diagram of a scenario where a communication method provided by an embodiment of the present application is applicable;
  • FIG. 3 is a flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the fifth generation (the 5th Generation, 5G) mobile communication system has put forward higher requirements in terms of transmission rate, delay, and power consumption.
  • the International Telecommunication Union (ITU) will enhance mobile broadband (Enhanced Mobile Broadband, eMBB), Massive Machine-type Communication (mMTC), and Ultra-Reliable and Low-Latency Communication (URLLC) is defined as the three typical services of 5G in the future, which points out the direction for the formulation of 5G standards.
  • URLLC is one of the three typical services of 5G.
  • Its main application scenarios include unmanned driving, telemedicine, etc. These application scenarios put forward stricter requirements in terms of reliability and latency.
  • the specific requirements of the URLLC business include: data transmission reliability of 99.999%, transmission delay less than 1 millisecond, and the requirement of high reliability and low latency to reduce instruction overhead as much as possible.
  • the closed-loop communication services of controllers and sensors in smart factories also belong to URLLC services.
  • this service also has some other service requirements, such as closed-loop communication and small and medium-sized packet services.
  • this type of service is an application-layer service, it appears as a data service in the wireless air interface, and it is a closed-loop uplink and downlink.
  • the uplink and downlink closed loop refers to the simultaneous existence of uplink data and downlink data. This kind of business can be a periodic business or a non-periodic business.
  • FIG 1 is a schematic diagram of closed-loop communication. Please refer to Figure 1.
  • the terminal device In order to implement closed-loop services, the terminal device needs to receive two physical downlink control channels (PDCCH). One of the PDCCHs is used to schedule the physical downlink shared channel (PDSCH).
  • PDCCH physical downlink control channels
  • PDSCH physical downlink shared channel
  • multiple signaling links are required, such as PDCCH to PDSCH, PDCCH to PUSCH and other signaling links.
  • the PDCCH signaling overhead is relatively large. If multiple terminal devices have service transmission at the same time, the PDCCH will be limited due to the limited PDCCH, which will cause PDCCH congestion (For example, a network device cannot send PDCCH to multiple terminal devices at the same time, so that some terminal devices cannot receive PDSCH or send PUSCH because they do not receive PDCCH).
  • each signaling link needs to be demodulated and decoded, and the time delay is relatively large.
  • the embodiments of the present application provide a communication method, which reduces the signaling links in the communication process to achieve closed-loop service communication, while ensuring service reliability, while reducing PDCCH overhead and delay.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the communication method provided in the embodiments of this application can be used in the third generation (the 3rd Generation, 3G) mobile communication, the long-term evolution (Long Term Evolution, LTE) system, the fourth generation (the 4th Generation, 4G) mobile communication system, and the advanced long-term Evolution (Long Term Evolution-Advanced, LTE-A) system, 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) related cellular systems, fifth generation (the 5th Generation, 5G) mobile communication system and subsequent evolution Communication Systems.
  • the network device involved in the embodiments of the present application may be an entity used to transmit or receive signals on the network side, such as a generation NodeB (gNodeB).
  • the network device may be a device used to communicate with mobile devices.
  • Network equipment can be APs in wireless local area networks (WLAN), base transceivers in global system for mobile communication (GSM) or code division multiple access (CDMA).
  • WLAN wireless local area networks
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • BTS BTS
  • BTS base station
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolutional base station evolutional base station
  • LTE long-term evolution
  • Node B, eNB or eNodeB Node B, eNB or eNodeB
  • relay station or access point or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the network in the future evolved public land mobile network (PLMN) network Equipment, or gNodeB in the NR system, etc.
  • PLMN public land mobile network
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, Pico cell (Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is called a network device.
  • the terminal device involved in the embodiments of this application may be a wireless terminal device capable of receiving network device scheduling and instruction information.
  • the wireless terminal device may be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function. Type equipment, or other processing equipment connected to a wireless modem.
  • a wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN).
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, built-in computer, or vehicle-mounted mobile devices, which exchange languages and/or data with the wireless access network.
  • Wireless terminal equipment may also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point (AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • Wireless terminal devices can also be wearable devices and next-generation communication systems, for example, terminal devices in a 5G network or terminal devices in a public land mobile network (PLMN) network that will evolve in the future, and in NR communication systems. Terminal equipment, etc.
  • PLMN public land mobile network
  • FIG. 2 is a schematic diagram of a scenario where a communication method provided by an embodiment of the present application is applicable.
  • Network equipment and terminal equipment 1 to terminal equipment 6 form a communication system.
  • any terminal equipment in terminal equipment 1 to terminal equipment 6 receives the instruction information sent by the network equipment through high-level signaling.
  • the indication information receives the downlink data channel sent by the network device, the downlink data channel carries control information, and then the uplink channel is sent to the network device according to the control information.
  • terminal equipment 4-6 also form a communication system.
  • terminal equipment 4 or terminal equipment 6 receives instruction information sent by network equipment through high-level signaling, and receives downlink data sent by network equipment according to the instruction information.
  • Channel the downlink data channel carries control information, and then the uplink channel is sent to the network device according to the control information.
  • FIG. 3 is a flowchart of a communication method provided by an embodiment of the present application.
  • This embodiment describes the communication method described in this application from the perspective of interaction between network equipment and terminal equipment.
  • This embodiment includes:
  • the network device sends instruction information to the terminal device through high-level signaling.
  • the terminal device receives the instruction information sent by the network device through high-level signaling.
  • the high-level signaling refers to the signaling sent by the high-level protocol layer
  • the high-level protocol layer is at least one protocol layer above the physical layer, such as the medium access control (MAC) layer, and radio link control ( Radio Link Control (RLC) layer, Packet Data Convergence Protocol (PDCP) layer, radio resource control (RRC) layer or non-access stratum (NAS) layer.
  • MAC medium access control
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • RRC radio resource control
  • NAS non-access stratum
  • the network device may send instruction information to the terminal device through high-level signaling, and the instruction message includes information required by the terminal device to receive the downlink data channel.
  • the downlink data channel may be PDSCH.
  • the network device sends a downlink data channel carrying control information to the terminal device.
  • the terminal device receives the downlink data channel sent by the network device according to the instruction information, and the downlink data channel carries control information.
  • the terminal device does not rely on the PDCCH to receive the downlink data channel sent by the network device every time, but receives the downlink data channel according to the instruction information in the high-level signaling to avoid PDCCH congestion when multiple terminal devices transmit services at the same time phenomenon.
  • the downlink data channel contains control information, and the network device can jointly encode the control information and other data information on the downlink data channel, which solves the need to add additional cyclic redundancy code correction when sending PDCCH separately in the prior art.
  • CRC cyclic redundancy check
  • the terminal device sends an uplink channel to the network device according to the control information.
  • the network device receives an uplink channel, and the uplink channel is sent by the terminal device according to the control information.
  • the terminal device does not rely on the PDCCH to send an uplink channel to the network device, but instead sends an uplink channel, such as an uplink data channel or an uplink control channel, to the network device according to the received control information in the downlink data channel.
  • an uplink channel such as an uplink data channel or an uplink control channel
  • the network device does not need to send a PDCCH for it, which reduces PDCCH overhead and avoids PDCCH congestion when multiple terminal devices transmit services at the same time.
  • the terminal device receives the instruction information sent by the device on the network through high-level signaling, receives the downlink data channel that carries the control information sent by the network device according to the instruction information, and sends the control information to the network device according to the control information.
  • the link that the network device sends the downlink PDCCH to the terminal device and the link that the network device sends the uplink PDCCH to the terminal device are removed, but only one downlink data channel and one uplink channel are used to realize closed-loop service communication and signaling links To a great extent, it guarantees service reliability and reduces time delay.
  • the terminal equipment does not rely on the PDCCH sent by the network equipment to receive the downlink data signal, but receives the downlink data channel according to the indication information in the high-level signaling, which reduces the PDCCH overhead and avoids PDCCH congestion when multiple terminal equipment transmits services at the same time Phenomenon:
  • the terminal device does not rely on the PDCCH to send the uplink channel to the network device, but sends the uplink channel to the network device according to the control information in the received downlink data channel, such as the uplink data channel or the uplink control channel, which further reduces the PDCCH Overhead.
  • the downlink data channel contains control information, and the network equipment can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check to the PDCCH separately, which reduces Overhead.
  • the foregoing uplink channel includes an uplink control channel
  • the control information carried in a downlink data channel sent by a network device includes at least one of the following: Transmission Power Control (TPC) information of the uplink control channel, The timing indication information, the resource indication information of the uplink control channel, the zero-power channel state information reference signal trigger, or the first downlink assignment index (downlink assignment index, DAI), where the timing indication information of the uplink control channel is used to instruct the terminal equipment to follow The time interval between receiving the downlink data channel and sending the uplink control channel.
  • TPC Transmission Power Control
  • DAI downlink assignment index
  • the aforementioned uplink channel includes an uplink control channel, such as PUCCH.
  • the terminal device After the network device sends a downlink data channel to the terminal device, the terminal device demodulates and decodes the received downlink data channel. If the decoding is correct, the uplink The control channel sends an acknowledgement (acknowledgement, ACK) to the network device, and if the decoding is wrong, a negative acknowledgement (NACK) is sent to the network device on the uplink control channel.
  • acknowledgement acknowledgement
  • NACK negative acknowledgement
  • the terminal device sends an uplink control channel to the network device according to the control information carried in the downlink data channel, and the control information mainly includes at least one of the following:
  • the TCP information of the uplink control channel, the TPC information is mainly used to instruct the terminal device to send the power information of the uplink control channel;
  • the timing indication information of the uplink control channel is used to indicate the time interval between receiving the downlink data channel and sending the uplink control channel by the terminal device.
  • the time interval is, for example, K1 slots. It is assumed that the terminal device is in the nth slot.
  • the terminal device sends the uplink control channel to the network device on the n+K1th slot; or
  • the resource indication information of the uplink control channel is used to instruct the terminal equipment to determine a specific resource for transmitting the uplink control channel from the uplink control channel resource set, for example, there are 8 resources in the uplink control channel resource set, Then the size of the indication information is 3 bits (bits), and different values indicate different resources among the 8 resources; or
  • Zero power channel state information reference signal trigger used to trigger zero power channel state information reference signal (channel state information-reference signal, CSI-RS); or
  • the first downlink assignment index (downlink assignment index, DAI) is used to indicate the total number and/or cumulative number of downlink data sent by the network device.
  • the control information carried in the downlink data channel includes at least one of the above information.
  • the control information only includes the TPC information and the uplink control of the uplink control channel.
  • Channel timing indication information another example, control information only includes uplink channel resource indicator information; another example, control information only includes ZP CSI-RS trigger; another example, control information includes uplink control channel transmission power control information, uplink control Channel timing indication information, uplink control channel resource indication information, zero-power channel state information reference signal trigger, and first downlink allocation index DAI.
  • the network device carries the control information required by the uplink control channel in the downlink data channel and sends it to the terminal device, so that after receiving the downlink data channel, the terminal device parses out the control information from the downlink data channel and sends the uplink data channel.
  • Control channel the transmission of the uplink control channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the aforementioned uplink channel includes an uplink data channel
  • the control information includes at least one of the following: carrier indication information of the uplink data channel, bandwidth part indication information of the uplink data channel, frequency domain resource indication information of the uplink data channel, and uplink data Channel time domain resource indicator information, uplink data channel frequency domain frequency hopping indicator, uplink data channel modulation and coding method MCS, uplink data channel new data indicator NDI, uplink data channel redundancy version, uplink data channel mix Automatic repeat request HARQ process number, uplink data channel precoding information and number of layers, uplink data channel transmission power control information, uplink data channel antenna port information, channel sounding reference signal SRS resource indicator information, SRS request information, channel State measurement information trigger request or second downlink allocation index DAI
  • the aforementioned uplink channel includes an uplink data channel, such as PUSCH.
  • the terminal device parses out the control information required to send the uplink data channel from the downlink data channel, and then according to the control The information sends the uplink data channel to the network device.
  • the control information mainly includes at least one of the following:
  • the carrier indicator information of the uplink data channel is used to indicate the carrier number used for uplink data channel transmission;
  • the bandwidth part indicator information of the uplink data channel is used to indicate the bandwidth part (bandwidth part) sent by the uplink data channel.
  • the bandwidth part refers to a certain part of the entire bandwidth; or
  • Frequency domain resource indication information of the uplink data channel where the frequency domain resource indication information is used to indicate the frequency domain resource allocation of the uplink data channel;
  • the time domain resource indication information of the uplink data channel is used to indicate the time domain resource allocation of the uplink data channel.
  • This time domain resource indication information can not only indicate the time domain start symbol and length of the uplink data channel , It can also indicate a K2 indicator value, indicating the number of time slots between receiving control information in the downlink data channel and sending uplink data channel, for example, the terminal device receives control information in the downlink data channel in the nth slot , Then send the uplink data channel to the network device on the n+K2 slot; or
  • Frequency domain frequency hopping indicator of the uplink data channel used to indicate whether frequency domain frequency hopping is required
  • MCS modulation and coding scheme
  • NDI new data indicator
  • G The redundancy version of the uplink data channel, used to indicate the redundancy version number adopted by the uplink data channel;
  • Hybrid automatic repeat request (HARQ) process number of the uplink data channel used to indicate the process number of this uplink data channel transmission
  • precoding information and number of layers of the uplink data channel used to indicate the precoding information and number of layers of the uplink data channel
  • K antenna port information of the uplink data channel, used to indicate the port number used to transmit the uplink data channel
  • SRS Sounding reference signal
  • SRS request information used to trigger the sending of SRS
  • CSI request channel state measurement information trigger request
  • CSI channel state information
  • DAI downlink assignment index
  • the control information carried in the downlink data channel includes at least one of A to O in the above information.
  • the control information only includes J (uplink data channel
  • the control information only includes E (frequency-domain frequency hopping indicator of the uplink data channel); another example, the control information only includes K and I (the antenna port information and precoding of the uplink data channel) Information and number of layers); for another example, the control information includes L and M (SRS resource indication information and SRS request information).
  • the network device carries the control information required by the uplink data channel in the downlink data channel and sends it to the terminal device, so that after receiving the downlink data channel, the terminal device parses out the control information from the downlink data channel and sends the uplink data channel.
  • the transmission of the uplink control channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the control information when the uplink channel includes an uplink data channel, the control information includes SRS request information.
  • the embodiments of the present application are not limited.
  • the control information when the uplink channel includes an uplink control channel, the control information includes SRS request information.
  • the control information includes one SRS request information.
  • the uplink channel may only include the uplink control channel, or the uplink channel may only include the uplink data channel, or the uplink channel may include both the uplink control channel and the uplink data channel.
  • the control information includes at least one of the following: transmission power control information of the uplink control channel, timing indicator information of the uplink control channel, resource indicator information of the uplink control channel, zero power channel Status information reference signal trigger or first downlink allocation index DAI, carrier indication information of uplink data channel, bandwidth part indication information of uplink data channel, frequency domain resource indication information of uplink data channel, time domain resource indication information of uplink data channel , Frequency domain frequency hopping indicator of uplink data channel, modulation and coding method of uplink data channel MCS, new data indicator of uplink data channel NDI, redundancy version of uplink data channel, hybrid automatic repeat request HARQ process number of uplink data channel , Precoding information and number of layers of the uplink data channel, transmission power control information of the uplink data channel, antenna port information of the uplink data channel, channel sounding reference signal SRS resource indication information, SRS request information, channel state measurement information trigger request or first 2.
  • Downlink allocation index may be used to indicate the uplink data channel.
  • the control information may include the first downlink allocation index DAI and the second downlink allocation index at the same time, and the first downlink allocation index and the second downlink allocation index are respectively It is used to indicate one of the total number of downlink data and the cumulative number.
  • the first downlink allocation index is used to indicate the total number
  • the second downlink allocation index is used to indicate the cumulative number
  • the first downlink allocation index is used to indicate the cumulative number
  • the second downlink allocation index is used to indicate the total number.
  • the control information may only include the first downlink allocation index or only the second downlink allocation index.
  • the terminal device may need to use the HARQ process number of the downlink data channel when receiving the downlink data channel.
  • the network device can send the HARQ process number to the terminal device through the above control information, or through the above instruction information Send the HARQ process number of the downlink data channel to the terminal device.
  • control information includes the HARQ process number of the hybrid automatic repeat request for the downlink data channel; or, the indication information includes the HARQ process number of the hybrid automatic repeat request for the downlink data channel, because the process number of the downlink data channel is not limited to be fixed. Therefore, it is possible to flexibly send the HARQ process number of the downlink data channel to the terminal device.
  • the network device does not send a physical downlink control channel to the terminal device before sending the downlink data channel carrying control information to the terminal device.
  • the terminal device does not receive the downlink control channel before sending the uplink channel to the network device according to the control information.
  • the network device does not send the PDCCH for scheduling the downlink data channel to the terminal device, and the terminal device only receives the downlink data channel according to the indication information sent by the network device through high-level signaling.
  • various information required by the terminal device to receive the downlink data channel is carried in the indication information, and the network device does not need to send the PDCCH to the terminal device, which reduces the PDCCH overhead to a certain extent.
  • the instruction information includes at least one of the following:
  • the frequency domain resource indication information of the downlink data channel is used to indicate the frequency domain resource allocation (frequency domain resource allocation) where the downlink data channel is located;
  • the time domain resource indication information of the downlink data channel is used to indicate the time domain resource allocation (time domain resource allocation) occupied by the downlink data channel;
  • the mapping type (VRB-to-PRB) of the virtual resource block (VRB) to the physical resource block (PRB) of the downlink data channel mainly includes two types: centralized and distributed.
  • VRB-to-PRB mapping is a parameter related to frequency domain resource mapping, used to indicate the mapping type of downlink data channel frequency domain resources; or
  • the physical resource block bundling size (PRB bundling size indicator) of the downlink data channel is mainly used to indicate the size of the precoded bundling physical resource block used for the downlink data channel.
  • PRB bundling size indicator is used to indicate the size of the precoded bundling physical resource block used for the downlink data channel.
  • MCS modulation and coding mode of the downlink data channel
  • the new data indication NDI of the downlink data channel is used to indicate whether the downlink data channel is new transmission or retransmission;
  • the redundancy version of the downlink data channel is used to indicate the redundancy version number adopted by the downlink data channel;
  • the initialization information of the demodulation reference signal (DMRS) of the downlink data channel is used to indicate the sequence initialization information of the DMRS used for the demodulation of the downlink data channel;
  • the antenna port number of the downlink data channel is used to indicate the port number of the downlink data channel
  • the carrier indication information of the downlink data channel is used to indicate the carrier number used for downlink data channel reception;
  • the bandwidth part indication information of the downlink data channel is used to indicate the received bandwidth part of the downlink data channel, and the bandwidth part refers to a certain part of the entire bandwidth;
  • the transmission configuration indication (TCI) of the downlink data channel is used to indicate the quasi-co-location relationship of the downlink data channel.
  • the instruction information when the terminal device receives the downlink data channel only according to the instruction information sent by the network device through high-level signaling, the instruction information includes at least one of the above information, for example, the instruction information only includes the downlink data channel.
  • Frequency domain resource indication information of the data channel for another example, the indication information only includes the mapping type of the virtual resource block of the downlink data channel to the physical resource block, and the physical resource block bundling size of the downlink data channel; another example, the indication information only includes the downlink Carrier indication information of the data channel.
  • the above-mentioned receiving the downlink data channel only according to the instruction information sent by the high-level signaling means that all the information required to receive the downlink data channel is not carried in the PDCCH, and the downlink data channel can be received without receiving the PDCCH. .
  • the network equipment carries the indication information required by the downlink data channel in the high-level signaling and sends it to the terminal equipment, so that after receiving the high-level signaling, the terminal equipment parses the indication information from the high-level signaling and receives the downlink Data channel.
  • the reception of the downlink data channel does not depend on the PDCCH, which reduces the PDCCH overhead to a certain extent.
  • the terminal device before the network device sends the downlink data channel carrying control information to the terminal device, the terminal device receives the semi-persistent scheduled physical downlink control channel sent by the network device; at this time, the terminal device The indication information is receiving the downlink data channel sent by the network device, specifically receiving the downlink data channel sent by the network device according to the physical downlink control channel of the semi-persistent scheduling and the indication information.
  • the network device before receiving the uplink channel sent by the terminal device according to the control information, the network device also sends a semi-persistent scheduled physical downlink control channel to the terminal device.
  • the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device, and sends indication information to the terminal device through high-level signaling.
  • part of the information required by the terminal equipment to receive the downlink data channel is carried in the indication information, and the other part of the information is carried in the physical downlink control channel of semi-persistent scheduling.
  • the PDCCH sent by the network equipment is the physical downlink control channel of semi-persistent scheduling. After the semi-persistent scheduled PDCCH only needs to be sent once, in a period of time thereafter, the downlink data channel can be received according to the indication information of the PDCCH in combination with the indication information. It is not necessary to receive the PDCCH every time before receiving the downlink data channel. , To a certain extent, reduce the PDCCH overhead.
  • the semi-persistent scheduling physical downlink control channel carries at least one of the following: downlink Frequency domain resource indication information of the data channel, time domain resource indication information of the downlink data channel, the mapping type of the virtual resource block of the downlink data channel to the physical resource block, the physical resource block bundling size of the downlink data channel, and the modulation of the downlink data channel
  • the new data indicator of the downlink data channel NDI the initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, and the bandwidth part indicator information of the downlink data channel Or the transmission configuration instruction of the downlink data channel.
  • the terminal device only receiving the downlink data channel according to the instruction information, which is not repeated
  • the indication information includes at least one of the following information: the transmission period of the downlink data channel, used to indicate the interval between two adjacent downlink data channel transmissions, for example, the period is 1 slot, that is, the previous downlink data channel After receiving 1 slot, receive the next downlink data channel. or
  • the number of HARQ processes for the hybrid automatic repeat request of the downlink data channel which is used to indicate the process number of this downlink data channel transmission;
  • the format of the physical uplink control channel PUCCH resource corresponding to the downlink data channel is used to indicate the format of the PUCCH where the feedback information sent to the network device is located when the terminal device decodes the downlink data channel correctly or incorrectly.
  • the network device sends a semi-persistent scheduled physical downlink control channel to the terminal device, and sends indication information to the terminal device through high-level signaling. Since the semi-persistent scheduling PDCCH is received only once, the downlink data channel can be received according to the SPS PDCCH for a period of time, instead of receiving the PDCCH every time to receive the downlink data channel, it reduces the PDCCH overhead and avoids the same time PDCCH congestion occurs when multiple terminal devices transmit services. Further, the downlink data channel contains control information, and the network device can jointly encode the control information and other data information on the downlink data channel, which solves the problem of adding additional cyclic redundancy check (cyclic redundancy check, CRC) to the PDCCH. ), which reduces overhead.
  • CRC cyclic redundancy check
  • the physical downlink control channel of the semi-persistent scheduling may The HARQ process number that carries the downlink data channel.
  • the embodiment of the present application is not limited, and the HARQ process number of the downlink data channel may be sent to the terminal device through control information, indication information, or a semi-persistent scheduled physical downlink control channel.
  • Fig. 4 is a flowchart of another communication method provided by an embodiment of the present application. This embodiment describes the communication method described in this application from the perspective of interaction between network equipment and terminal equipment. This embodiment includes:
  • a network device sends a demodulation reference signal DMRS to a terminal device.
  • the terminal device receives the DMRS.
  • the terminal device determines whether the DMRS sent by the network device is detected. If the terminal device detects the DMRS, step 203 is executed; if the terminal device does not detect the DMRS, the terminal device continues to perform the next blind detection of the DMRS.
  • the terminal device uses DMRS detection instead of PDCCH blind detection. If DMRS is detected, step 203 is executed; since DMRS detection is a sequence detection, compared to blind detection of whether PDSCH exists, it can reduce the complexity of terminal device implementation. , And can reduce time delay.
  • the terminal device receives the downlink data channel sent by the network device according to the instruction information.
  • step 202 the terminal device detects a DMRS
  • the method described in this application is used for closed-loop service communication, that is, the downlink data channel sent by the network device is received according to the instruction information, and the downlink data channel carries control information. After that, the terminal device sends an uplink channel to the network device according to the control information.
  • step 101 please refer to the description of step 101 to step 103, which will not be repeated here.
  • the terminal device can assume that the network device does not send a downlink data channel, and the terminal device continues to perform the next blind detection of the DMRS.
  • the terminal device determines whether the network device has sent the downlink data channel by detecting the DMRS. After determining that the network device has sent the downlink data channel, the terminal device receives the downlink data channel through indication information.
  • DMRS detection is sequence detection, which can reduce the complexity of terminal equipment implementation, and does not need to assume downlink data for decoding, which can reduce delay.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device involved in this embodiment may be a terminal device or a chip applied to the terminal device.
  • the communication device can be used to perform the functions of the terminal device in the foregoing method embodiment.
  • the communication device 100 may include: a receiving module 11 and a sending module 12. among them,
  • the receiving module 11 is configured to receive instruction information sent by a network device through high-level signaling, and according to the instruction information, receive a downlink data channel sent by the network device, where the downlink data channel carries control information;
  • the sending module 12 is configured to send an uplink channel to the network device according to the control information received by the receiving module 11.
  • the uplink channel includes an uplink control channel
  • the control information includes at least one of the following: transmission power control information of the uplink control channel, timing indication information of the uplink control channel, and The resource indication information of the control channel, the zero-power channel state information reference signal trigger, or the first downlink allocation index DAI, where the timing indication information is used to instruct the terminal equipment to start from receiving the downlink data channel to sending the uplink The time interval between control channels.
  • the uplink channel includes an uplink data channel
  • the control information includes at least one of the following: carrier indication information of the uplink data channel, bandwidth part indication information of the uplink data channel, and Frequency domain resource indication information of the data channel, time domain resource indication information of the uplink data channel, frequency domain frequency hopping indication of the uplink data channel, modulation and coding mode MCS of the uplink data channel, and the uplink data channel
  • the new data indicates the NDI, the redundancy version of the uplink data channel, the HARQ process number of the hybrid automatic repeat request for the uplink data channel, the precoding information and the number of layers of the uplink data channel, and the number of layers of the uplink data channel Transmission power control information, antenna port information of the uplink data channel, channel sounding reference signal SRS resource indication information, SRS request information, channel state measurement information trigger request, or second downlink allocation index DAI.
  • the receiving module 11 is also configured not to receive the physical downlink control channel before the sending module 12 sends the uplink channel to the network device according to the control information.
  • the indication information includes at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and virtual resource block of the downlink data channel
  • the redundancy version the initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel or the The transmission configuration indication of the downlink data channel.
  • the receiving module 11 is configured to receive a semi-persistent scheduled physical downlink control channel sent by the network device, and receive all the physical downlink control channels according to the semi-persistent scheduled physical downlink control channel and the indication information The downlink data channel sent by the network device.
  • the semi-persistent scheduling physical downlink control channel carries at least one of the following information: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, The mapping type of the virtual resource block to the physical resource block of the downlink data channel, the physical resource block bundling size of the downlink data channel, the modulation and coding mode MCS of the downlink data channel, and the new data of the downlink data channel Indicate NDI, the initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indication information of the downlink data channel, the bandwidth part indication information of the downlink data channel, or the Transmission configuration indication of the downlink data channel;
  • the indication information includes at least one of the following information: the transmission period of the downlink data channel, the number of HARQ processes of the hybrid automatic repeat request for the downlink data channel, or the physical uplink control channel PUCCH resource corresponding to the downlink data channel Format.
  • control information includes the HARQ process number of the hybrid automatic repeat request of the downlink data channel
  • the indication information includes the HARQ process number of the hybrid automatic repeat request of the downlink data channel.
  • the aforementioned communication device 100 further includes:
  • the processing module 13 is configured to detect the demodulation reference signal DMRS sent by the network device before the receiving module 11 receives the downlink data channel sent by the network device according to the instruction information.
  • the communication device provided in the embodiment of the present application can perform the actions of the terminal device in the foregoing method embodiment, and its implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • the communication device involved in this embodiment may be a network device or a chip applied to the network device.
  • the communication device can be used to perform the function of the network device in the above method embodiment.
  • the communication device 200 may include: a sending module 21 and a receiving module 22. among them,
  • the sending module 21 is configured to send indication information to a terminal device through high-level signaling, and send a downlink data channel carrying control information to the terminal device;
  • the receiving module 22 is configured to receive an uplink channel, which is sent by the terminal device according to the control information carried in the downlink data channel sent by the sending module 21.
  • the uplink channel includes an uplink control channel
  • the control information includes at least one of the following: transmission power control information of the uplink control channel, timing indication information of the uplink control channel, and The resource indication information of the control channel, the zero-power channel state information reference signal trigger, or the first downlink allocation index DAI, where the timing indication information is used to instruct the terminal equipment to start from receiving the downlink data channel to sending the uplink The time interval between control channels.
  • the uplink channel includes an uplink data channel
  • the control information includes at least one of the following: carrier indication information of the uplink data channel, bandwidth part indication information of the uplink data channel, and Frequency domain resource indication information of the data channel, time domain resource indication information of the uplink data channel, frequency domain frequency hopping indication of the uplink data channel, modulation and coding mode MCS of the uplink data channel, and the uplink data channel
  • the new data indicates the NDI, the redundancy version of the uplink data channel, the HARQ process number of the hybrid automatic repeat request for the uplink data channel, the precoding information and the number of layers of the uplink data channel, and the number of layers of the uplink data channel Transmission power control information, antenna port information of the uplink data channel, channel sounding reference signal SRS resource indication information, SRS request information, channel state measurement information trigger request, or second downlink allocation index DAI.
  • the sending module 21 is also configured not to send a physical downlink control channel to the terminal device before sending the downlink data channel carrying control information to the terminal device.
  • the indication information includes at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and virtual resource block of the downlink data channel
  • the redundancy version the initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel or the The transmission configuration indication of the downlink data channel.
  • the sending module 21 is also used to send a semi-persistent scheduled physical downlink to the terminal device. Control channel.
  • the semi-persistent scheduling physical downlink control channel carries at least one of the following: frequency domain resource indication information of the downlink data channel, time domain resource indication information of the downlink data channel, and The mapping type of the virtual resource block to the physical resource block of the data channel, the physical resource block bundling size of the downlink data channel, the modulation and coding mode MCS of the downlink data channel, the new data indicator NDI of the downlink data channel, The initialization information of the demodulation reference signal of the downlink data channel, the antenna port number of the downlink data channel, the carrier indicator information of the downlink data channel, the bandwidth part indicator information of the downlink data channel, or the downlink data channel Transmission configuration instructions;
  • the indication information includes at least one of the following information: the transmission period of the downlink data channel, the number of HARQ processes of the hybrid automatic repeat request for the downlink data channel, or the physical uplink control channel PUCCH resource corresponding to the downlink data channel Format.
  • control information includes the HARQ process number of the hybrid automatic repeat request of the downlink data channel
  • the indication information includes the HARQ process number of the hybrid automatic repeat request of the downlink data channel.
  • the sending module 21 is also used to send the demodulation reference signal DMRS to the terminal device before sending the downlink data channel carrying the control information to the terminal device.
  • the communication device provided in the embodiment of the present application can execute the actions of the network device in the foregoing method embodiment, and its implementation principles and technical effects are similar, and will not be repeated here.
  • the above transceiver module may be a transceiver in actual implementation.
  • the processing module can be implemented in the form of software calling through processing elements; it can also be implemented in the form of hardware.
  • the processing module may be a separately established processing element, or it may be integrated in a chip of the above-mentioned device for implementation, in addition, it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device Call and execute the functions of the above processing module.
  • all or part of these modules can be integrated together or implemented independently.
  • the processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each of the above modules can be completed by hardware integrated logic circuits in the processor element or instructions in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • CPU central processing unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device 300 may include: a processor 31 (for example, a CPU), a memory 32, and a transceiver 33; the transceiver 33 is coupled to the processor 31, and the processor 31 controls the transceiver 33 to send and receive actions; It may include high-speed random access memory (random-access memory, RAM), and may also include non-volatile memory (non-volatile memory, NVM), such as at least one disk memory.
  • the memory 32 may store various instructions to Used to complete various processing functions and implement the method steps of this application.
  • the communication device involved in the present application may further include: a power supply 34, a communication bus 35, and a communication port 36.
  • the transceiver 33 may be integrated in the transceiver of the communication device, or may be an independent transceiver antenna on the communication device.
  • the communication bus 35 is used to implement communication connections between components.
  • the aforementioned communication port 36 is used to realize connection and communication between the communication device and other peripherals.
  • the above-mentioned memory 32 is used to store computer executable program code, and the program code includes instructions; when the processor 31 executes the instructions, the instructions cause the processor 31 of the communication device to perform the processing of the terminal device in the above method embodiment
  • the operation is to cause the transceiver 33 to perform the receiving and sending actions of the terminal device in the foregoing embodiment.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device 400 may include: a processor 41 (for example, a CPU), a memory 42, a transceiver 43; the transceiver 43 is coupled to the processor 41, and the processor 41 controls the transceiver 43 to send and receive actions; It may include high-speed random access memory (random-access memory, RAM), and may also include non-volatile memory (non-volatile memory, NVM), such as at least one disk memory.
  • the memory 42 may store various instructions to Used to complete various processing functions and implement the method steps of this application.
  • the communication device involved in this application may further include a communication bus 44.
  • the transceiver 43 may be integrated in the transceiver of the communication device, or may be an independent transceiver antenna on the communication device.
  • the communication bus 44 is used to implement communication connections between components.
  • the aforementioned communication port 46 is used to implement connection and communication between the communication device and other peripherals.
  • the above-mentioned memory 42 is used to store computer executable program code, and the program code includes instructions; when the processor 41 executes the instructions, the instructions cause the processor 41 of the communication device to execute the above-mentioned embodiments or alternative embodiments.
  • the processing action of the network device causes the transceiver 43 to execute the receiving action of the network device in the foregoing method embodiment.
  • the method provided in the embodiments of the present application is mainly introduced from the perspective of interaction between a terminal device and a network device.
  • the terminal device and the network device include corresponding hardware structures and/or software modules that perform each function.
  • this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device and the network device into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • plural herein refers to two or more.
  • the term “and/or” in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations.
  • the character “/” in this article generally means that the associated objects before and after are in an “or” relationship; in the formula, the character "/” means that the associated objects before and after are in a "division" relationship.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not be implemented in this application.
  • the implementation process of the example constitutes any limitation.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory. (volatile memory), such as random-access memory (random-access memory, RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be other division methods for example, multiple units or components may be It can be combined or integrated into another device, or some features can be omitted or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate parts may or may not be physically separate, and the parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a terminal, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, SSD).

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Abstract

本申请提供一种通信方法及通信装置，终端设备接收网络上设备通过高层信令发送的指示信息，根据该指示信息接收网络设备发送的、携带控制信息的下行数据信道，并根据该控制信息向网络设备发送上行信道。该过程中，去掉网络设备向终端设备发送下行的PDCCH的环节和网络设备向终端设备发送上行的PDCCH的环节，而是仅通过一个下行数据信道和一个上行信道，实现闭环业务通信，信令环节少，极大程度上保证了业务可靠性并降低了时延。

Description

通信方法及通信装置
本申请要求于2019年01月28日提交中国专利局、申请号为2019100804142、申请名称为《通信方法及通信装置》的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及移动通信技术领域，尤其涉及一种通信方法及通信装置。
背景技术
目前，通信过程中，网络设备与终端设备之间传输上下行数据之前，网络设备均需要向终端设备发送物理下行控制信道(physical downlink control channel，PDCCH)。
下行数据传输过程中，网络设备向终端设备发送PDCCH，该PDCCH用于指示物理下行共享信道(physical downlink shared channel，PDSCH)相关的信息，如载波指示(carrier indicator information)信息、频域资源指示信息、时域资源指示信息等，该PDCCH还可以包含与PDSCH对应的反馈信息所在的物理上行控制信道(physical uplink control channel，PUCCH)的相关信息，如PDSCH到发送反馈的定时指示信息等，该定时指示信息用于指示终端设备从PDSCH接收到发送对应的PUCCH间隔的时隙(slot)个数，例如，终端设备在第n个slot上向网络设备发送PDSCH，定时指示信息为K1个slot，则终端设备在第n+K1个slot上向网络设备发送PUCCH。终端设备接收到PDCCH后，根据该PDCCH向网络设备发送PDSCH。该PDCCH还包含PUCCH相关信息，终端设备还根据该PDCCH向网络设备发送PUCCH。
上行数据传输过程中，网络设备向终端设备发送PDCCH，该PDCCH用于指示物理上行共享信道(physical uplink shared channel，PUSCH)相关的信息，如载波指示信息、频域资源指示信息、时域资源指示信息、频域跳频指示(frequency hopping)等，其中，时域资源指示信息用于指示一个K2指示值，指示从PDCCH接收到PUSCH发送之间间隔的slot个数。终端设备在第n个slot接收到PDCCH后，根据该PDCCH，在第n+K2个slot上向网络设备发送PUSCH。
超可靠低延时通信(ultra-reliable and low-latency communication，URLLC)中，要求数据传输可靠性达到99.999％甚至更高，传输时延低于1毫秒，指令开销尽可能的少，而且，要求实现闭环业务通信。闭环业务通信是指通信过程中，上下行数据同时存在。若采用上述的上下行数据传输方式，则终端设备需要接收两个PDCCH，其中一个PDCCH用于调度PDSCH，另一个PDCCH用于调度PUSCH。该过程中，需要经过多个信令环节，如PDCCH到PDSCH、PDCCH到PUSCH等信令环节，若有一个环节出错，则无法保证业务整体可靠性。
发明内容
本申请提供一种通信方法及通信装置，通过减少通信过程中的信令环节，实现闭环业务通信中，保证业务可靠性的目的。
第一方面，本申请实施例提供一种通信方法，该方法可以应用于终端设备、也可以应用于终端设备中的芯片。下面以应用于终端设备为例对该方法进行描述，该方法包括：终端设备接收网络设备通过高层信令发送的指示信息，根据所述指示信息，接收所述网络设备发送的下行数据信道，所述下行数据信道携带控制信息，根据所述控制信息，向所述网络设备发送上行信道。采用这种方案，去掉网络设备向终端设备发送下行的PDCCH的环节和网络设备向终端设备发送上行的PDCCH的环节，而是仅通过一个下行数据信道和一个上行信道，实现闭环业务通信，信令环节少，极大程度上保证了业务可靠性并降低了时延。而且，终端设备接收下行数据信号不依赖于网络设备发送的PDCCH，而是根据高层信令中的指示信息接收下行数据信道，减少了PDCCH开销，避免同一时刻多个终端设备传输业务时出现PDCCH阻塞现象；终端设备不依赖于PDCCH向网络设备发送上行信道，而是根据接收到的下行数据信道中的控制信息向网络设备发送上行信道，如上行数据信道或上行控制信道等，进一步的降低了PDCCH开销。需要特别说明的是，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验，降低了开销。
一种可行的设计中，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。采用这种方案，网络设备将上行控制信道所需的控制信息携带在下行数据信道中发送给终端设备，使得终端设备接收到下行数据信道后，从该下行数据信道中解析出控制信息并发送上行控制信道，该上行控制信道的发送不依赖于PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。采用这种方案，网络设备将上行数据信道所需的控制信息携带在下行数据信道中发送给终端设备，使得终端设备接收到下行数据信道后，从该下行数据信道中解析出控制信息并发送上行数据信道，该上行控制信道的发送不依赖于PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述终端设备根据所述控制信息，向所述网络设备发送上行 信道之前，还包括：所述终端设备不接收物理下行控制信道。采用这种方案，网络设备不向终端设备发送用于调度下行数据信道的PDCCH，终端设备仅根据网络设备通过高层信令发送的指示信息接收下行数据信道。也就是说，终端设备接收下行数据信道所需的各种信息均携带在指示信息中，网络设备无需向终端设备发送PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。采用这种方案，网络设备将下行数据信道所需的指示信息携带在高层信令中发送给终端设备，使得终端设备接收到高层信令后，从该高层信令中解析出指示息并接收下行数据信道，该下行数据信道的接收不依赖于PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道之前，还包括：所述终端设备接收所述网络设备发送的半持续调度的物理下行控制信道；所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道，包括：所述终端设备根据所述半持续调度的物理下行控制信道和所述指示信息，接收所述网络设备发送的下行数据信道。采用这种方案，网络设备向终端设备发送半持续调度的物理下行控制信道，并且通过高层信令向终端设备发送指示信息。如此一来，终端设备接收下行数据信道所需的部分信息携带在指示信息中，另外一部分信息携带在半持续调度的物理下行控制信道中，网络设备发送的PDCCH是半持续调度的物理下行控制信道，该半持续调度的PDCCH只需要发送一次后，在之后的一段时间内，都可以根据该PDCCH的指示信息结合指示信息收下行数据信道，不需要每次接收下行数据信道之前都接收PDCCH，因此，一定程度上降低了PDCCH开销。
一种可行的设计中，所述半持续调度的物理下行控制信道承载下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。采用这种方案，网络设备向终端设备发送半持续调度的物理下行控制信道，并且通过高层信令向终端设备发送指示信息。由于半持续调度PDCCH只接收一次，之后的一段时间内,都可以根据半持续调度PDCCH接收下行数据信道，而不需要每次都接收PDCCH才能接收下行数据信道，所以减少了PDCCH的开销，避免了同一时刻多个终端设备 传输业务时出现PDCCH阻塞现象。进一步的，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验(cyclic redundancy check，CRC)，降低了开销。
一种可行的设计中，所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；或者，所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。采用这种方案，由于不限定下行数据信道的进程号，因此能够实现灵活向终端设备发送下行数据信道的HARQ进程号的目的。
一种可行的设计中，所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道之前，还包括：所述终端设备检测所述网络设备发送的解调参考信号DMRS。采用这种方案，终端设备通过检测DMRS来确定网络设备是否发送了下行数据信道，在确定了网络设备发送了下行数据信道之后通过指示信息接收下行数据信道，相比于直接盲检测下行数据信道是否存在来说，DMRS检测是序列检测，能够降低终端设备实现的复杂度，并且不需要假设下行数据是存在的而进行译码，能够降低时延。
第二方面，本申请实施例提供一种通信方法，该方法可以应用于网络设备、也可以应用于网络设备中的芯片。下面以应用于网络设备为例对该方法进行描述，该方法包括：包括：网络设备通过高层信令向终端设备发送指示信息，向所述终端设备发送携带控制信息的下行数据信道，接收上行信道，所述上行信道是所述终端设备根据所述控制信息发送的。采用这种方案，去掉网络设备向终端设备发送下行的PDCCH的环节和网络设备向终端设备发送上行的PDCCH的环节，而是仅通过一个下行数据信道和一个上行信道，实现闭环业务通信，信令环节少，极大程度上保证了业务可靠性并降低了时延。
一种可行的设计中，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。采用这种方案，网络设备将上行控制信道所需的控制信息携带在下行数据信道中发送给终端设备，使得终端设备接收到下行数据信道后，从该下行数据信道中解析出控制信息并发送上行控制信道，该上行控制信道的发送不依赖于PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求 或第二下行分配索引DAI。采用这种方案，网络设备将上行数据信道所需的控制信息携带在下行数据信道中发送给终端设备，使得终端设备接收到下行数据信道后，从该下行数据信道中解析出控制信息并发送上行数据信道，该上行控制信道的发送不依赖于PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述网络设备向所述终端设备发送携带控制信息的下行数据信道之前，还包括：所述网络设备不向所述终端设备发送物理下行控制信道。采用这种方案，网络设备将下行数据信道所需的指示信息携带在高层信令中发送给终端设备，使得终端设备接收到高层信令后，从该高层信令中解析出指示息并接收下行数据信道，该下行数据信道的接收不依赖于PDCCH，一定程度上降低了PDCCH开销
一种可行的设计中，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。采用这种方案，网络设备将下行数据信道所需的指示信息携带在高层信令中发送给终端设备，使得终端设备接收到高层信令后，从该高层信令中解析出指示息并接收下行数据信道，该下行数据信道的接收不依赖于PDCCH，一定程度上降低了PDCCH开销。
一种可行的设计中，所述网络设备接收所述终端设备根据所述控制信息发送的上行信道之前，还包括：所述网络设备向所述终端设备发送半持续调度的物理下行控制信道。采用这种方案，网络设备向终端设备发送半持续调度的物理下行控制信道，并且通过高层信令向终端设备发送指示信息。由于半持续调度PDCCH只接收一次，之后的一段时间内,都可以根据SPS PDCCH接收下行数据信道，而不需要每次都接收PDCCH才能接收下行数据信道，所以减少了PDCCH的开销，避免了同一时刻多个终端设备传输业务时出现PDCCH阻塞现象。进一步的，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验(cyclic redundancy check，CRC)，降低了开销。
一种可行的设计中，所述半持续调度的物理下行控制信道承载下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。采用这种方案，网络设备向终端设备发送半持续调度的物理下行控制信道，并且通过高层信 令向终端设备发送指示信息。由于半持续调度PDCCH只接收一次，之后的一段时间内,都可以根据SPS PDCCH接收下行数据信道，而不需要每次都接收PDCCH才能接收下行数据信道，所以减少了PDCCH的开销，避免了同一时刻多个终端设备传输业务时出现PDCCH阻塞现象。进一步的，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验(cyclic redundancy check，CRC)，降低了开销。
一种可行的设计中，所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；或者，所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。采用这种方案，由于不限定下行数据信道的进程号，因此能够实现灵活向终端设备发送下行数据信道的HARQ进程号的目的。
一种可行的设计中，所述网络设备向所述终端设备发送携带控制信息的下行数据信道之前，还包括：所述网络设备向所述终端设备发送解调参考信号DMRS。采用这种方案，终端设备通过检测DMRS来确定网络设备是否发送了下行数据信道，在确定了网络设备发送了下行数据信道之后通过指示信息接收下行数据信道，相比于直接盲检测下行数据信道是否存在来说，DMRS检测是序列检测，能够降低终端设备实现的复杂度，并且不需要假设下行数据是存在的而进行译码，能够降低时延。
第三方面，本申请实施例提供一种通信装置，所述通信装置具有实再上述方法实施例中终端设备的行为功能。所述功能可以通过硬件实现，也可以通过硬件执行相应软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。所述模块可以是软件和/或硬件。
在一个可能的设计中，通信装置的结构中包括处理器与收发器，所述处理器被配置为控制收发器接收网络设备通过高层信令发送的指示信息根据所述指示信息，接收所述网络设备发送的下行数据信道，所述下行数据信道携带控制信息根据所述控制信息，向所述网络设备发送上行信道。
第四方面，本申请实施例提供一种通信装置，该通信装置用于实现上述方法实际中网络设备的行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，通信装置的结构包括处理器与收发器，所述处理器用于收发器通过高层信令向终端设备发送指示信息，向所述终端设备发送携带控制信息的下行数据信道，接收上行信道，所述上行信道是所述终端设备根据所述控制信息发送的。
第五方面，本申请实施例提供一种包含指令的计算机程序产品，当其在终端设备上运行时，使得终端设备计算机执行上述第一方面或第一方面的各种可能的实现方式中的方法。
第六方面，本申请实施例提供一种包含指令的计算机程序产品，当其在网络设备上运行时，使得网络设备执行上述第二方面或第二方面的各种可能的实现方式中的方法。
第七方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在终端设备上运行时，使得终端设备执行上述第一方面或第一 方面的各种可能的实现方式中的方法。
第八方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在网络设备上运行时，使得网络设备执行上述第二方面或第二方面的各种可能的实现方式中的方法。
第九方面，本申请实施例提供一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现上述方法中网络设备或终端设备的功能。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
本申请实施例提供的通信方法及通信装置，终端设备接收网络上设备通过高层信令发送的指示信息，根据该指示信息接收网络设备发送的、携带控制信息的下行数据信道，并根据该控制信息向网络设备发送上行信道。该过程中，去掉网络设备向终端设备发送下行的PDCCH的环节和网络设备向终端设备发送上行的PDCCH的环节，而是仅通过一个下行数据信道和一个上行信道，实现闭环业务通信，信令环节少，极大程度上保证了业务可靠性并降低了时延。而且，终端设备接收下行数据信号不依赖于网络设备发送的PDCCH，而是根据高层信令中的指示信息接收下行数据信道，减少了PDCCH开销，避免同一时刻多个终端设备传输业务时出现PDCCH阻塞现象；终端设备不依赖于PDCCH向网络设备发送上行信道，而是根据接收到的下行数据信道中的控制信息向网络设备发送上行信道，如上行数据信道或上行控制信道等，进一步的降低了PDCCH开销。需要特别说明的是，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验，降低了开销。
附图说明
图1是闭环业务的通信示意图；
图2是本申请实施例提供的一种通信方法适用的场景示意图；
图3是本申请实施例提供的一种通信方法的流程图；
图4是本申请实施例提供的另一种通信方法的流程图；
图5为本申请实施例提供的一种通信装置的结构示意图；
图6为本申请实施例提供的另一种通信装置的结构示意图；
图7为本申请实施例提供的一种通信装置的结构示意图；
图8为本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
第五代(the 5th Generation，5G)移动通信系统相较于前几代移动通信系统在传输速率、时延及功耗等方面都提出了更高的要求。国际电信同盟(International Telecommunication Union，ITU)将增强移动宽带(Enhanced Mobile Broadband，eMBB)、海量物联网通信(Massive Machine-type Communication，mMTC)和极可靠低时延通信(Ultra-Reliable and Low-Latency Communication，URLLC)定义为未来5G的三大典型业务，这为5G标准的制定指明了方向。URLLC作为5G的三大典型业务之一，主要应用场景包括：无人驾驶、远程医疗等，这些应用场景在可靠性和 延时方面提出了更加严格的需求。URLLC业务具体的需求包括：数据传输可靠性达到99.999％，传输时延低于1毫秒，以及在满足高可靠性及低延时要求下，尽可能的减小指令开销。
智能工厂(smart factory)中的控制器和传感器的闭环通信业务也属于URLLC业务，该业务除了短时延高可靠性的需求外，还有一些别的业务需求，例如闭环通信以及中小包业务等。由于该类业务是应用层业务，在无线空口中表现为数据业务，并且是上下行闭环的。上下行闭环是指上行数据和下行数据同时存在。该种业务可以是周期性的业务或者是非周期性的业务。
通常情况下，网络设备为终端设备发送用于调度下行数据的调度信息，终端设备根据该调度信息接收下行数据；网络设备为终端设备发送用于调度上行数据的调度信息，终端设备根据该调度信息发送上行数据。也就是说，上行数据和下行数据分别对应不同的调度信息。图1是闭环业务的通信示意图。请参照图1，为实现闭环业务，终端设备需要接收两个物理下行控制信道(physical downlink control channel，PDCCH)，其中一个PDCCH，用于调度下行共享物理信道(physical downlink shared channel，PDSCH)，终端设备接收到该PDSCH后、且间隔K1个slot后发送对应的PUCCH，如图1中斜线填充部分所示；另一个PDCCH，如图1中方格填充部分所示，用于调度PUSCH，终端设备接收该PDCCH后、且间隔K2个slot发送对应的PUSCH。该过程中，需要经过多个信令环节，如PDCCH到PDSCH、PDCCH到PUSCH等信令环节，为了保证业务整体的可靠性，需要保证每个环节出错的概率都很低，若有一个环节出错概率比较高，则无法保证业务整体可靠性。而且，由于实现一个用户的一次完整的业务通信需要网络设备向终端设备发送两个PDCCH，PDCCH的信令开销较大，若多个终端设备同时有业务传输，则由于PDCCH有限，会造成PDCCH阻塞(例如网络设备无法向多个终端设备同时发送PDCCH，使得部分终端设备由于没有接收到PDCCH则无法接收PDSCH或发送PUSCH)。另外，由于存在多个信令环节，每个信令环节均需要解调译码等，时延较大。
有鉴于此，本申请实施例提供一种通信方法，通过减少通信过程中的信令环节，实现闭环业务通信中，保证业务可靠性的同时，降低PDCCH开销以及时延。
本申请说明书和权利要求书及附图中的术语“第一”、“第二”和“第三”等是用于区别不同对象，而不是用于限定特定顺序。
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请实施例提供的通信方法可用于第三代(the 3rd Generation，3G)移动通信、长期演进(Long Term Evolution，LTE)系统，第四代(the 4th Generation，4G)移动通信系统、高级长期演进(Long Term Evolution-Advanced，LTE-A)系统、第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)相关的蜂窝系统、第五代(the 5th Generation，5G)移动通信系统以及后续演进的通信系统。
本申请实施例中涉及的网络设备，可以是网络侧中一种用于发射或接收信号的实体， 如新一代基站(generation Node B，gNodeB)。网络设备可以是用于与移动设备通信的设备。网络设备可以是无线局域网(wireless local area networks，WLAN)中的AP，全球移动通信系统(global system for mobile communication，GSM)或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(long term evolution，LTE)中的演进型基站(evolutional Node B，eNB或eNodeB)，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网络中的网络设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的网络设备，或NR系统中的gNodeB等。另外，在本申请实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(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。此外，在其它可能的情况下，网络设备可以是其它为终端设备提供无线通信功能的装置。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请实施例中，为终端设备提供无线通信功能的装置称为网络设备。
本申请实施例中涉及的终端设备，可以是能够接收网络设备调度和指示信息的无线终端设备，无线终端设备可以是指向用户提供语音和/或数据连通性的设备，或具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端设备可以经无线接入网(如，radio access network，RAN)与一个或多个核心网或者互联网进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话，手机(mobile phone))、计算机和数据卡，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、平板电脑(Pad)、带无线收发功能的电脑等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile station，MS)、远程站(remote station)、接入点(access point，AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户站(subscriber station，SS)、用户端设备(customer premises equipment，CPE)、终端(terminal)、用户设备(user equipment，UE)、移动终端(mobile terminal，MT)等。无线终端设备也可以是可穿戴设备以及下一代通信系统，例如，5G网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的终端设备，NR通信系统中的终端设备等。
图2是本申请实施例提供的一种通信方法适用的场景示意图。请参照图2，网络设备和终端设备1～终端设备6组成一个通信系统，该通信系统中，终端设备1～终端设备6中的任意终端设备接收网络设备通过高层信令发送的指示信息，根据该指示信息接收网络设备发送的下行数据信道，该下行数据信道携带控制信息，然后，根据该 控制信息向网络设备发送上行信道。此外，终端设备4～终端设备6也组成一个通信系统，该通信系统中，终端设备4或终端设备6接收网络设备通过高层信令发送的指示信息，根据该指示信息接收网络设备发送的下行数据信道，该下行数据信道携带控制信息，然后，根据该控制信息向网络设备发送上行信道。
下面，在上述图2所示场景的基础上，对本申请所述通信方法进行详细说明。具体的，可参见图3，图3是本申请实施例提供的一种通信方法的流程图。本实施例是从网络设备向终端设备交互的角度，对本申请所述的通信方法进行说明的。本实施例包括：
101、网络设备通过高层信令向终端设备发送指示信息。
相应的，终端设备接收网络设备通过高层信令发送的指示信息。
本申请实施例中，高层信令指高层协议层发出的信令，高层协议层为物理层以上的至少一个协议层，如媒体接入控制(Medium Access Control，MAC)层、无线链路控制(Radio Link Control，RLC)层、分组数据会聚协议(Packet Data Convergence Protocol，PDCP)层、无线资源控制(radio resource control，RRC)层或非接入(non access stratum，NAS)层。
示例性的，网络设备可以通过高层信令向终端设备发送指示信息，该指示信包含终端设备接收下行数据信道所需的信息。例如下行数据信道可以为PDSCH。
102、网络设备向所述终端设备发送携带控制信息的下行数据信道。
相应的，终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道，所述下行数据信道携带控制信息。
本实施例中，终端设备不是每次都依赖PDCCH接收网络设备发送的下行数据信道，而是根据高层信令中的指示信息接收下行数据信道，避免同一时刻多个终端设备传输业务时出现PDCCH阻塞现象。进一步的，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了现有技术中通过单独发送PDCCH时需添加额外的循环冗余码校验(cyclic redundancy check，CRC)造成开销大的问题。
103、所述终端设备根据所述控制信息，向所述网络设备发送上行信道。
相应的，网络设备接收上行信道，所述上行信道是所述终端设备根据所述控制信息发送的。
示例性的，终端设备不依赖于PDCCH向网络设备发送上行信道，而是根据接收到的下行数据信道中的控制信息向网络设备发送上行信道，如上行数据信道或上行控制信道等。如此一来，终端设备需要发送上行数据时，网络设备无需为其发送PDCCH，减少了PDCCH开销，避免同一时刻多个终端设备传输业务时出现PDCCH阻塞现象。
本申请实施例提供的通信方法，终端设备接收网络上设备通过高层信令发送的指示信息，根据该指示信息接收网络设备发送的、携带控制信息的下行数据信道，并根据该控制信息向网络设备发送上行信道。该过程中，去掉网络设备向终端设备发送下行的PDCCH的环节和网络设备向终端设备发送上行的PDCCH的环节，而是仅通过一个下行数据信道和一个上行信道，实现闭环业务通信，信令环节少，极大程度上保证了业务可靠性并降低了时延。而且，终端设备接收下行数据信号不依赖于网络设备发送的PDCCH，而是根据高层信令中的指示信息接收下行数据信道，减少了PDCCH 开销，避免同一时刻多个终端设备传输业务时出现PDCCH阻塞现象；终端设备不依赖于PDCCH向网络设备发送上行信道，而是根据接收到的下行数据信道中的控制信息向网络设备发送上行信道，如上行数据信道或上行控制信道等，进一步的降低了PDCCH开销。需要特别说明的是，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验，降低了开销。
示例性的，上述的上行信道包括上行控制信道，网络设备发送的下行数据信道携带的控制信息包括下述至少一个：上行控制信道的传输功率控制(Transmission Power Control，TPC)信息、上行控制信道的定时指示信息、上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引(downlink assignment index，DAI)，其中，上行控制信道的定时指示信息用于指示终端设备从接收下行数据信道到发送上行控制信道之间的时间间隔。
示例性的，上述的上行信道包括上行控制信道，如PUCCH，网络设备向终端设备发送下行数据信道后，终端设备对接收到的下行数据信道进行解调译码，如果译码正确，则在上行控制信道向网络设备发送肯定应答(acknowledgement，ACK)，若译码错误，则在上行控制信道向网络设备发送否定应答(negative acknowledgement，NACK)。
例如，终端设备根据下行数据信道携带的控制信息向网络设备发送上行控制信道，该控制信息主要包括下述至少一个：
上行控制信道的TCP信息，该TPC信息主要用于指示终端设备发送上行控制信道的功率信息；或者
上行控制信道的定时指示信息，该定时指示信息用于指示终端设备从接收下行数据信道到发送上行控制信道之间的时间间隔，该时间间隔例如为K1个slot，假设终端设备在第n个slot上接收到下行数据信道，则终端设备在第n+K1个slot上向网络设备发送上行控制信道；或者
上行控制信道的资源指示信息，该资源指示信息用于指示终端设备从上行控制信道资源集合中确定出具体的用于发送上行控制信道的资源，例如，上行控制信道资源集合中有8个资源，则该指示信息的大小为3比特(比特)，不同的值指示8个资源中不同的资源；或者
零功率信道状态信息参考信号触发(ZP CSI-RS trigger)，用于触发零功率信道状态信息参考信号(channel state information-reference signal，CSI-RS)；或者
第一下行分配索引(downlink assignment index，DAI)，用于指示网络设备发送的下行数据的总数和/或累计数。
需要说明的是，本申请实施例中，当上行信道包括上行控制信道时，下行数据信道携带的控制信息包括上述信息中的至少一个，例如，控制信息仅包括上行控制信道的TPC信息和上行控制信道的定时指示信息；再如，控制信息仅包括上行信道的资源指示信息；又如，控制信息仅包括ZP CSI-RS trigger；又如，控制信息包括上行控制信道的传输功率控制信息、上行控制信道的定时指示信息、上行控制信道的资源指示信息、零功率信道状态信息参考信号触发和第一下行分配索引DAI。
本实施例中，网络设备将上行控制信道所需的控制信息携带在下行数据信道中发送给终端设备，使得终端设备接收到下行数据信道后，从该下行数据信道中解析出控制信息并发送上行控制信道，该上行控制信道的发送不依赖于PDCCH，一定程度上降低了PDCCH开销。
示例性的，上述的上行信道包括上行数据信道，控制信息包括下述至少一个：上行数据信道的载波指示信息、上行数据信道的带宽部分指示信息、上行数据信道的频域资源指示信息、上行数据信道的时域资源指示信息、上行数据信道的频域跳频指示、上行数据信道的调制与编码方式MCS、上行数据信道的新数据指示NDI、上行数据信道的冗余版本、上行数据信道的混合自动重传请求HARQ进程号、上行数据信道的预编码信息和层数、上行数据信道的传输功率控制信息、上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI
示例性的，上述的上行信道包括上行数据信道，如PUSCH，网络设备向终端设备发送下行数据信道后，终端设备从下行数据信道中解析出发送上行数据信道所需的控制信息，并根据该控制信息向网络设备发送上行数据信道。该控制信息主要包括下述至少一项：
A：上行数据信道的载波指示(carrier indicator)信息，用于指示用来上行数据信道发送的载波编号；或者
B：上行数据信道的带宽部分指示(bandwidth part indicator)信息，用于指示上行数据信道发送的带宽部分(bandwidth part)，带宽部分指在整个带宽内的某一部分；或者
C：上行数据信道的频域资源指示信息，该频域资源指示信息用于指示发送上行数据信道的频域资源的位置(frequency domain resource allocation)；或者
D：上行数据信道的时域资源指示信息，用于指示发送上行数据信道的时域资源位置(time domain resource allocation)，该时域资源指示信息不仅可以指示上行数据信道的时域开始符号和长度，还可以指示一个K2指示值，指示从接收下行数据信道中的控制信息到发送上行数据信道间隔的时隙的个数，例如，终端设备在第n个slot接收到下行数据信道中的控制信息，则在第n+K2个slot上向网络设备发送上行数据信道；或者
E：上行数据信道的频域跳频指示，用于指示是否需要频域跳频；上行数据信道的调制与编码方式(modulation and coding scheme，MCS)，用于指示上行数据信道所用的调制与编码方式；或者
F：上行数据信道的新数据指示(new data indicator，NDI)，用于指示本次上行数据信道是新传还是重传；或者
G：上行数据信道的冗余版本，用于指示上行数据信道所采用的冗余版本号；或者
H：上行数据信道的混合自动重传请求(hybrid automatic repeat request，HARQ)进程号(process number)，用于指示本次上行数据信道传输的进程号；或者
I：上行数据信道的预编码信息和层数(precoding information and number of layers)，用于指示上行数据信道的预编码信息和传输用的层数；或者
J：上行数据信道的传输功率控制信息，用于指示上行数据信道的功率控制信息；或者
K：上行数据信道的天线端口(antenna port)信息，用于指示用于发送上行数据信道的端口编号；或者
L：探测参考信号(sounding reference signal，SRS)资源指示信息，用于指示SRS的资源；或者
M：SRS请求信息，用于触发SRS的发送；或者
N：信道状态测量信息触发请求(CSI request)，用于触发信道状态信息(channel state information，CSI)测量上报；或者
O：第二下行分配索引(downlink assignment index，DAI)，用于指示下行数据的总数和/或累计数。
需要说明的是，本申请实施例中，当上行信道包括上行数据信道时，下行数据信道携带的控制信息包括上述信息中A至O中至少一个，例如，该控制信息仅包括J(上行数据信道的传输功率控制信息)；再如，该控制信息仅包括E(上行数据信道的频域跳频指示)；又如，该控制信息仅包括K和I(上行数据信道的天线端口信息和预编码信息和层数)；又如，该控制信息包括L和M(SRS资源指示信息和SRS请求信息)。
本实施例中，网络设备将上行数据信道所需的控制信息携带在下行数据信道中发送给终端设备，使得终端设备接收到下行数据信道后，从该下行数据信道中解析出控制信息并发送上行数据信道，该上行控制信道的发送不依赖于PDCCH，一定程度上降低了PDCCH开销。
需要说明的是，上述实施例中，当上行信道包括上行数据信道时，控制信息包括SRS请求信息。然而，本申请实施例并不限制，在其他可行的实现方式中，也可以是上行信道包括上行控制信道时，控制信息包括SRS请求信息。当上行信道同时包括上行数据信道和上行控制信道时，控制信息包含一个SRS请求信息。
另外，还需要说明的是，上述实施例中，上行信道可以仅包括上行控制信道，或者上行信道可以仅包括上行数据信道，或者，上行信道同时包括上行控制信道和上行数据信道。
当上行信道同时包括上行控制信道和上行数据信道时，控制信息包括下述至少一个：上行控制信道的传输功率控制信息、上行控制信道的定时指示信息、上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI、上行数据信道的载波指示信息、上行数据信道的带宽部分指示信息、上行数据信道的频域资源指示信息、上行数据信道的时域资源指示信息、上行数据信道的频域跳频指示、上行数据信道的调制与编码方式MCS、上行数据信道的新数据指示NDI、上行数据信道的冗余版本、上行数据信道的混合自动重传请求HARQ进程号、上行数据信道的预编码信息和层数、上行数据信道的传输功率控制信息、上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信 息触发请求或第二下行分配索引。
示例性的，当上行信道同时包括上行控制信道和上行数据信道时，控制信息可以同时包括第一下行分配索引DAI和第二下行分配索引，第一下行分配索引和第二下行分配索引分别用于指示下行数据的总数和累计数中的一个。具体的，第一下行分配索引用于指示总数，第二下行分配索引用于指示累计数；或者，第一下行分配索引用于指示累计数，第二下行分配索引用于指示总数。
示例性的，当上行信道同时包括上行控制信道和上行数据信道时，控制信息可以仅包括第一下行分配索引或者仅包括第二下行分配索引。
本申请实施例中，终端设备接收下行数据信道时有可能需要用到下行数据信道的HARQ进程号，网络设备可以通过上述的控制信息将HARQ进行号发送给终端设备，或者，通过上述的指示信息将下行数据信道的HARQ进程号发送给终端设备。
本实施例中，控制信息包含下行数据信道的混合自动重传请求HARQ进程号；或者，指示信息包含下行数据信道的混合自动重传请求HARQ进程号，由于不限定下行数据信道的进程号为固定的值，因此能够实现灵活向终端设备发送下行数据信道的HARQ进程号的目的。
下面，对上述实施例中，终端设备如何接收下行数据信道进行详细说明。
一种可行的设计中，网络设备向所述终端设备发送携带控制信息的下行数据信道之前，不向所述终端设备发送物理下行控制信道。相应的，终端设备根据所述控制信息向网络设备发送上行信道之前，不接收下行控制信道。
该种方式中，网络设备不向终端设备发送用于调度下行数据信道的PDCCH，终端设备仅根据网络设备通过高层信令发送的指示信息接收下行数据信道。也就是说，终端设备接收下行数据信道所需的各种信息均携带在指示信息中，网络设备无需向终端设备发送PDCCH，一定程度上降低了PDCCH开销。
当终端设备仅根据网络设备通过高层信令发送的指示信息接收下行数据信道时，该指示信息包括下述至少一个：
下行数据信道的频域资源指示信息，用于指示下行数据信道所在的频域资源的位置(frequency domain resource allocation)；或者
下行数据信道的时域资源指示信息，用于指示下行数据信道所占的时域资源位置(time domain resource allocation)；或者
下行数据信道的虚拟资源块(virtual resource block，VRB)到物理资源块(physical resource block，PRB)的映射类型(VRB-to-PRB mapping)，主要包括两种类型：集中式和分布式。VRB-to-PRB mapping是和频域资源映射相关的参数，用于指示下行数据信道频域资源的映射类型；或者
下行数据信道的物理资源块绑定大小(PRB bundling size indicator)，主要用于指示下行数据信道所用的预编码的绑定物理资源块的大小。也就是说，在下行数据信道映射后，有几个PRB联合绑定进行预编码；下行数据信道的调制与编码方式MCS，用于指示下行数据信道所用的调制编码方式；或者
下行数据信道的新数据指示NDI，用于指示本次下行数据信道是新传还是重传；或者
下行数据信道的冗余版本，用于指示下行数据信道所采用的冗余版本号；或者
下行数据信道的解调参考信号(demodulation reference signal，DMRS)的初始化信息，用于指示用于下行数据信道解调的DMRS的序列初始化信息；或者
下行数据信道的天线端口号，用于指示发送下行数据信道的端口编号；或者
下行数据信道的载波指示信息，用于指示用于下行数据信道接收的载波编号；或者
下行数据信道的带宽部分指示信息，用于指示下行数据信道接收的带宽部分，带宽部分指在整个带宽内的某一部分；或者
下行数据信道的传输配置指示(transmission configuration indication，TCI)，用于指示下行数据信道的准同位关系。
需要说明的是，本申请实施例中，当终端设备仅根据网络设备通过高层信令发送的指示信息接收下行数据信道时，该指示信息包括上述信息中的至少一个，例如，指示信息仅包括下行数据信道的频域资源指示信息；再如，指示信息仅包括下行数据信道的虚拟资源块到物理资源块的映射类型、下行数据信道的物理资源块绑定大小；又如，指示信息仅包括下行数据信道的载波指示信息。
需要说明的是，上述仅根据高层信令发送的指示信息接收下行数据信道，是说所有接收下行数据信道所需的信息没有任何信息携带在PDCCH中，不需要接收PDCCH，便可以接收下行数据信道。
本实施例中，网络设备将下行数据信道所需的指示信息携带在高层信令中发送给终端设备，使得终端设备接收到高层信令后，从该高层信令中解析出指示息并接收下行数据信道，该下行数据信道的接收不依赖于PDCCH，一定程度上降低了PDCCH开销。
另一种可行的设计中，网络设备向所述终端设备发送携带控制信息的下行数据信道之前，终端设备接收所述网络设备发送的半持续调度的物理下行控制信道；此时，终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道，具体是根据所述半持续调度的物理下行控制信道和所述指示信息，接收所述网络设备发送的下行数据信道。相应的，网络设备接收所述终端设备根据所述控制信息发送的上行信道之前，还向所述终端设备发送半持续调度的物理下行控制信道。
该种方式中，网络设备向终端设备发送半持续调度的物理下行控制信道，并且通过高层信令向终端设备发送指示信息。如此一来，终端设备接收下行数据信道所需的部分信息携带在指示信息中，另外一部分信息携带在半持续调度的物理下行控制信道中，网络设备发送的PDCCH是半持续调度的物理下行控制信道，该半持续调度的PDCCH只需要发送一次后，在之后的一段时间内，都可以根据该PDCCH的指示信息结合指示信息收下行数据信道，不需要每次接收下行数据信道之前都接收PDCCH，因此，一定程度上降低了PDCCH开销。
当终端设备根据网络设备发送的半持续调度的物理下行控制信道，以及网络设备通过高层信令发送的指示信息以及接收下行数据信道时，半持续调度的物理下行控制信道承载下述至少一个：下行数据信道的频域资源指示信息、下行数据信道的时域资源指示信息、下行数据信道的虚拟资源块到物理资源块的映射类型、下行数据信道的 物理资源块绑定大小、下行数据信道的调制与编码方式MCS、下行数据信道的新数据指示NDI、下行数据信道的解调参考信号的初始化信息、下行数据信道的天线端口号、下行数据信道的载波指示信息、下行数据信道的带宽部分指示信息或下行数据信道的传输配置指示，详细描述可参见上述终端设备仅根据指示信息接收下行数据信道的描述，此处不再赘述。
指示信息包括下述信息中的至少一个：下行数据信道的传输周期，用于指示相邻两次下行数据信道传输之间的间隔，例如，周期为1个slot，就是说在前一个下行数据信道接收1个slot后，接收下一个下行数据信道。或者
下行数据信道的混合自动重传请求HARQ进程数目，用于指示本次下行数据信道传输的进程号；或者
下行数据信道对应的物理上行控制信道PUCCH资源的格式，用于指示终端设备正确或未正确译码下行数据信道时，向网络设备发送的反馈信息所在的PUCCH的格式。
本实施例中，网络设备向终端设备发送半持续调度的物理下行控制信道，并且通过高层信令向终端设备发送指示信息。由于半持续调度PDCCH只接收一次，之后的一段时间内,都可以根据SPS PDCCH接收下行数据信道，而不需要每次都接收PDCCH才能接收下行数据信道，所以减少了PDCCH的开销，避免了同一时刻多个终端设备传输业务时出现PDCCH阻塞现象。进一步的，该下行数据信道中包含控制信息，网络设备可以将控制信息和下行数据信道上的其他数据信息联合编码，解决了单独发送PDCCH添加额外的循环冗余码校验(cyclic redundancy check，CRC)，降低了开销。
需要说明的是，上述当终端设备根据网络设备发送的半持续调度的物理下行控制信道，以及网络设备通过高层信令发送的指示信息以及接收下行数据信道时，半持续调度的物理下行控制信道可以承载下行数据信道的HARQ进程号。然而，本申请实施例并不限制，下行数据信道的HARQ进程号可以通过控制信息、指示信息或半持续调度的物理下行控制信道发送给终端设备。
图4是本申请实施例提供的另一种通信方法的流程图。本实施例是从网络设备向终端设备交互的角度，对本申请所述的通信方法进行说明的。本实施例包括：
201、网络设备向终端设备发送解调参考信号DMRS。
相应的，终端设备接收该DMRS。
202、终端设备判断是否检测到网络设备发送的DMRS，若终端设备检测到DMRS，则执行步骤203；若终端设备未检测到DMRS，则终端设备继续进行下一次DMRS的盲检测。
本实施例中，终端设备利用DMRS检测取代PDCCH盲检测，若检测到DMRS，则执行步骤203；由于DMRS检测是序列检测，相比盲检测PDSCH是否存在来说，能够降低终端设备实现的复杂度，并且能够降低时延。
203、终端设备根据指示信息接收网络设备发送的下行数据信道。
若步骤202中，终端设备检测到DMRS，则采用本申请所述的方法进行闭环业务通信，即根据指示信息接收网络设备发送的下行数据信道，该下行数据信道中携带控制信息。之 后，终端设备根据控制信息，向网络设备发送上行信道。
具体可以参照步骤101到步骤103的描述，不再赘述。
否则，若终端设备未检测到DMRS，则终端设备可以假设网络设备没有发送下行数据信道，终端设备继续进行下一次DMRS的盲检测。
本实施例中，终端设备通过检测DMRS来确定网络设备是否发送了下行数据信道，在确定了网络设备发送了下行数据信道之后通过指示信息接收下行数据信道，相比于直接盲检测下行数据信道是否存在来说，DMRS检测是序列检测，能够降低终端设备实现的复杂度，并且不需要假设下行数据进行译码，能够降低时延。
图5为本申请实施例提供的一种通信装置的结构示意图。本实施例所涉及的通信装置可以为终端设备，也可以为应用于终端设备的芯片。该通信装置可以用于执行上述方法实施例中终端设备的功能。如图5所示，该通信装置100可以包括：接收模块11和发送模块12。其中，
接收模块11，用于接收网络设备通过高层信令发送的指示信息，根据所述指示信息，接收所述网络设备发送的下行数据信道，所述下行数据信道携带控制信息；
发送模块12，用于根据所述接收模块11接收的控制信息，向所述网络设备发送上行信道。
一种可行的设计中，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。
一种可行的设计中，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。
一种可行的设计中，所述接收模块11，在所述发送模块12根据所述控制信息，向所述网络设备发送上行信道之前，还用于不接收物理下行控制信道。
一种可行的设计中，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。
一种可行的设计中，所述接收模块11，用于接收所述网络设备发送的半持续调度的物理下行控制信道，根据所述半持续调度的物理下行控制信道和所述指示信息，接收所述网络设备发送的下行数据信道。
一种可行的设计中，所述半持续调度的物理下行控制信道承载下述信息中的至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；
所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。
一种可行的设计中，所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；
或者，
所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。
再请参照图5，上述的通信装置100还包括：
处理模块13，用于在所述接收模块11根据所述指示信息，接收所述网络设备发送的下行数据信道之前，检测所述网络设备发送的解调参考信号DMRS。
本申请实施例提供的通信装置，可以执行上述方法实施例中终端设备的动作，其实现原理和技术效果类似，在此不再赘述。
图6为本申请实施例提供的另一种通信装置的结构示意图。本实施例所涉及的通信装置可以为网络设备，也可以为应用于网络设备的芯片。该通信装置可以用于执行上述方法实施例中网络设备的功能。如图6所示，该通信装置200可以包括：发送模块21和接收模块22。其中，
发送模块21，用于通过高层信令向终端设备发送指示信息，向所述终端设备发送携带控制信息的下行数据信道；
接收模块22，用于接收上行信道，所述上行信道是所述终端设备根据所述发送模块21发送的所述下行数据信道携带的所述控制信息发送的。
一种可行的设计中，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。
一种可行的设计中，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式 MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。
一种可行的设计中，所述发送模块21，向所述终端设备发送携带控制信息的下行数据信道之前，还用于不向所述终端设备发送物理下行控制信道。
一种可行的设计中，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。
一种可行的设计中，所述发送模块21，在所述接收模块22接收所述终端设备根据所述控制信息发送的上行信道之前，还用于向所述终端设备发送半持续调度的物理下行控制信道。
一种可行的设计中，所述半持续调度的物理下行控制信道承载下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；
所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。
一种可行的设计中，所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；
或者，
所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。
一种可行的设计中，所述发送模块21，在向所述终端设备发送携带控制信息的下行数据信道之前，还用于向所述终端设备发送解调参考信号DMRS。
本申请实施例提供的通信装置，可以执行上述方法实施例中网络设备的动作，其实现原理和技术效果类似，在此不再赘述。
需要说明的是，应理解以上收发模块实际实现时可以为收发器。而处理模块可以以软件通过处理元件调用的形式实现；也可以以硬件的形式实现。例如，处理模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上处理模 块的功能。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个专用集成电路(application specific integrated circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
图7为本申请实施例提供的一种通信装置的结构示意图。如图7所示，该通信装置300可以包括：处理器31(例如CPU)、存储器32、收发器33；收发器33耦合至处理器31，处理器31控制收发器33的收发动作；存储器32可能包含高速随机存取存储器(random-access memory，RAM)，也可能还包括非易失性存储器(non-volatile memory，NVM)，例如至少一个磁盘存储器，存储器32中可以存储各种指令，以用于完成各种处理功能以及实现本申请的方法步骤。可选的，本申请涉及的通信装置还可以包括：电源34、通信总线35以及通信端口36。收发器33可以集成在通信装置的收发信机中，也可以为通信装置上独立的收发天线。通信总线35用于实现元件之间的通信连接。上述通信端口36用于实现通信装置与其他外设之间进行连接通信。
在本申请实施例中，上述存储器32用于存储计算机可执行程序代码，程序代码包括指令；当处理器31执行指令时，指令使通信装置的处理器31执行上述方法实施例中终端设备的处理动作，使收发器33执行上述实施例中终端设备的收发动作，其实现原理和技术效果类似，在此不再赘述。
图8为本申请实施例提供的一种通信装置的结构示意图。如图8所示，该通信装置400可以包括：处理器41(例如CPU)、存储器42、收发器43；收发器43耦合至处理器41，处理器41控制收发器43的收发动作；存储器42可能包含高速随机存取存储器(random-access memory，RAM)，也可能还包括非易失性存储器(non-volatile memory，NVM)，例如至少一个磁盘存储器，存储器42中可以存储各种指令，以用于完成各种处理功能以及实现本申请的方法步骤。可选的，本申请涉及的通信装置还可以包括通信总线44。收发器43可以集成在通信装置的收发信机中，也可以为通信装置上独立的收发天线。通信总线44用于实现元件之间的通信连接。上述通信端口46用于实现通信装置与其他外设之间进行连接通信。
在本申请实施例中，上述存储器42用于存储计算机可执行程序代码，程序代码包括指令；当处理器41执行指令时，指令使通信装置的处理器41执行上述实施例或可选实施例中网络设备的处理动作，使收发器43执行上述方法实施例中网络设备的接收动作，其实现原理和技术效果类似，在此不再赘述。
上述本申请提供的实施例中，主要从终端设备和网络设备之间交互的角度对本申请实施例提供的方法进行了介绍。可以理解的是，各个网元，例如终端设备、网络设备为了实现上述本申请实施例提供的方法中的各功能，终端设备和网络设备包含了执行各个 功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端设备、网络设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
本文中的术语“多个”是指两个或两个以上。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。
可以理解的是，在本申请的实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所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一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
本申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、终端或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，SSD)等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (41)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收网络设备通过高层信令发送的指示信息；
    所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道，所述下行数据信道携带控制信息；
    所述终端设备根据所述控制信息，向所述网络设备发送上行信道。
  2. 根据权利要求1所述的方法，其特征在于，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。
  3. 根据权利要求1或2所述的方法，其特征在于，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。
  4. 根据权利要求1～3任一项所述的方法，其特征在于，所述终端设备根据所述控制信息，向所述网络设备发送上行信道之前，还包括：
    所述终端设备不接收物理下行控制信道。
  5. 根据权利要求4所述的方法，其特征在于，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。
  6. 根据权利要求1～3任一项所述的方法，其特征在于，所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道之前，还包括：
    所述终端设备接收所述网络设备发送的半持续调度的物理下行控制信道；
    所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道，包括：
    所述终端设备根据所述半持续调度的物理下行控制信道和所述指示信息，接收所述网络设备发送的下行数据信道。
  7. 根据权利要求6所述的方法，其特征在于，所述半持续调度的物理下行控制 信道承载下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；
    所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。
  8. 根据权利要求1～5任一项所述的方法，其特征在于，
    所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；
    或者，
    所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。
  9. 根据权利要求1～8任一项所述的方法，其特征在于，所述终端设备根据所述指示信息，接收所述网络设备发送的下行数据信道之前，还包括：
    所述终端设备检测所述网络设备发送的解调参考信号DMRS。
  10. 一种通信方法，其特征在于，包括：
    网络设备通过高层信令向终端设备发送指示信息；
    所述网络设备向所述终端设备发送携带控制信息的下行数据信道；
    所述网络设备接收上行信道，所述上行信道是所述终端设备根据所述控制信息发送的。
  11. 根据权利要求10所述的方法，其特征在于，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。
  12. 根据权利要求10或11所述的方法，其特征在于，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。
  13. 根据权利要求10～12任一项所述的方法，其特征在于，所述网络设备向所述终端设备发送携带控制信息的下行数据信道之前，还包括：
    所述网络设备不向所述终端设备发送物理下行控制信道。
  14. 根据权利要求13所述的方法，其特征在于，所述指示信息包括下述至少一 个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。
  15. 根据权利要求10～12任一项所述的方法，其特征在于，所述网络设备接收所述终端设备根据所述控制信息发送的上行信道之前，还包括：
    所述网络设备向所述终端设备发送半持续调度的物理下行控制信道。
  16. 根据权利要求15所述的方法，其特征在于，所述半持续调度的物理下行控制信道承载下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；
    所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。
  17. 根据权利要求10～13任一项所述的方法，其特征在于，
    所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；
    或者，
    所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。
  18. 根据权利要求10～17任一项所述的方法，其特征在于，所述网络设备向所述终端设备发送携带控制信息的下行数据信道之前，还包括：
    所述网络设备向所述终端设备发送解调参考信号DMRS。
  19. 一种通信装置，其特征在于，包括：
    接收模块，用于接收网络设备通过高层信令发送的指示信息，根据所述指示信息，接收所述网络设备发送的下行数据信道，所述下行数据信道携带控制信息；
    发送模块，用于根据所述接收模块接收的控制信息，向所述网络设备发送上行信道。
  20. 根据权利要求19所述的装置，其特征在于，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。
  21. 根据权利要求19或20所述的装置，其特征在于，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上 行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。
  22. 根据权利要求19～21任一项所述的装置，其特征在于，
    所述接收模块，在所述发送模块根据所述控制信息，向所述网络设备发送上行信道之前，还用于不接收物理下行控制信道。
  23. 根据权利要求22所述的装置，其特征在于，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。
  24. 根据权利要求19～21任一项所述的装置，其特征在于，
    所述接收模块，用于接收所述网络设备发送的半持续调度的物理下行控制信道，根据所述半持续调度的物理下行控制信道和所述指示信息，接收所述网络设备发送的下行数据信道。
  25. 根据权利要求24所述的装置，其特征在于，
    所述半持续调度的物理下行控制信道承载下述信息中的至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；
    所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。
  26. 根据权利要求19～23任一项所述的装置，其特征在于，
    所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；
    或者，
    所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。
  27. 根据权利要求19～26任一项所述的装置，其特征在于，所述装置还包括：
    处理模块，用于在所述接收模块根据所述指示信息，接收所述网络设备发送的下行数据信道之前，检测所述网络设备发送的解调参考信号DMRS。
  28. 一种通信装置，其特征在于，包括：
    发送模块，用于通过高层信令向终端设备发送指示信息，向所述终端设备发送携带控制信息的下行数据信道；
    接收模块，用于接收上行信道，所述上行信道是所述终端设备根据所述发送模块发送的所述下行数据信道携带的所述控制信息发送的。
  29. 根据权利要求28所述的装置，其特征在于，所述上行信道包括上行控制信道，所述控制信息包括下述至少一个：所述上行控制信道的传输功率控制信息、所述上行控制信道的定时指示信息、所述上行控制信道的资源指示信息、零功率信道状态信息参考信号触发或第一下行分配索引DAI，其中，所述定时指示信息用于指示所述终端设备从接收所述下行数据信道到发送所述上行控制信道之间的时间间隔。
  30. 根据权利要求28或29所述的装置，其特征在于，所述上行信道包括上行数据信道，所述控制信息包括下述至少一个：所述上行数据信道的载波指示信息、所述上行数据信道的带宽部分指示信息、所述上行数据信道的频域资源指示信息、所述上行数据信道的时域资源指示信息、所述上行数据信道的频域跳频指示、所述上行数据信道的调制与编码方式MCS、所述上行数据信道的新数据指示NDI、所述上行数据信道的冗余版本、所述上行数据信道的混合自动重传请求HARQ进程号、所述上行数据信道的预编码信息和层数、所述上行数据信道的传输功率控制信息、所述上行数据信道的天线端口信息、信道探测参考信号SRS资源指示信息、SRS请求信息、信道状态测量信息触发请求或第二下行分配索引DAI。
  31. 根据权利要求28～30任一项所述的装置，其特征在于，
    所述发送模块，向所述终端设备发送携带控制信息的下行数据信道之前，还用于不向所述终端设备发送物理下行控制信道。
  32. 根据权利要求31所述的装置，其特征在于，所述指示信息包括下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的冗余版本、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示。
  33. 根据权利要求28～30任一项所述的装置，其特征在于，
    所述发送模块，在所述接收模块接收所述终端设备根据所述控制信息发送的上行信道之前，还用于向所述终端设备发送半持续调度的物理下行控制信道。
  34. 根据权利要求33所述的装置，其特征在于，所述半持续调度的物理下行控制信道承载下述至少一个：所述下行数据信道的频域资源指示信息、所述下行数据信道的时域资源指示信息、所述下行数据信道的虚拟资源块到物理资源块的映射类型、所述下行数据信道的物理资源块绑定大小、所述下行数据信道的调制与编码方式MCS、所述下行数据信道的新数据指示NDI、所述下行数据信道的解调参考信号的初始化信息、所述下行数据信道的天线端口号、所述下行数据信道的载波指示信息、所述下行数据信道的带宽部分指示信息或所述下行数据信道的传输配置指示；
    所述指示信息包括下述信息中的至少一个：所述下行数据信道的传输周期、所述 下行数据信道的混合自动重传请求HARQ进程数目或所述下行数据信道对应的物理上行控制信道PUCCH资源的格式。
  35. 根据权利要求28～31任一项所述的装置，其特征在于，
    所述控制信息包含所述下行数据信道的混合自动重传请求HARQ进程号；
    或者，
    所述指示信息包含所述下行数据信道的混合自动重传请求HARQ进程号。
  36. 根据权利要求28～35任一项所述的装置，其特征在于，
    所述发送模块，在向所述终端设备发送携带控制信息的下行数据信道之前，还用于向所述终端设备发送解调参考信号DMRS。
  37. 一种计算机可读存储介质，其特征在于，用于存储计算机程序或指令，当所述计算机程序或指令在终端设备上运行时，使得所述终端设备执行权利要求1～9任一项所述的方法。
  38. 一种计算机可读存储介质，其特征在于，用于存储计算机程序或指令，当所述计算机程序或指令在网络设备上运行时，使得所述网络设备执行权利要求10～18任一项所述的方法。
  39. 一种计算机程序产品，其特征在于，当所述计算机程序产品在终端设备上运行时，使得所述终端设备执行如权利要求1～9任一项所述的方法。
  40. 一种计算机程序产品，其特征在于，当所述计算机程序产品在网络设备上运行时，使得所述网络设备执行如权利要求10～18任一项所述的方法。
  41. 一种通信装置，其特征在于，包括处理器和通信接口，所述通信接口用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至9或10至18中任一项所述的方法。
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