WO2021159320A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2021159320A1
WO2021159320A1 PCT/CN2020/074905 CN2020074905W WO2021159320A1 WO 2021159320 A1 WO2021159320 A1 WO 2021159320A1 CN 2020074905 W CN2020074905 W CN 2020074905W WO 2021159320 A1 WO2021159320 A1 WO 2021159320A1
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WIPO (PCT)
Prior art keywords
time domain
domain resource
resource set
dci format
terminal device
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PCT/CN2020/074905
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English (en)
French (fr)
Inventor
马蕊香
李胜钰
官磊
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20919167.5A priority Critical patent/EP4096129A4/en
Priority to BR112022016004A priority patent/BR112022016004A2/pt
Priority to PCT/CN2020/074905 priority patent/WO2021159320A1/zh
Priority to CN202080093605.3A priority patent/CN114982168A/zh
Publication of WO2021159320A1 publication Critical patent/WO2021159320A1/zh
Priority to US17/884,054 priority patent/US20220386289A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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
    • H04L1/1893—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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 signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • the terminal device determines the reception timing of the candidate physical downlink shared channel (PDSCH) based on the pre-configured information.
  • the terminal device receives the downlink data carried in the PDSCH, and then feeds back an automatic repeat request (HARQ) response message to the network device.
  • HARQ automatic repeat request
  • each HARQ response message corresponds to a set of bit values to characterize the PDSCH reception status of the terminal equipment at the corresponding candidate PDSCH reception timing.
  • the consecutive bits formed by the HARQ response messages corresponding to the receiving timing of different candidate PDSCHs are called codebooks.
  • DCI format 1_2 a new downlink control information (DCI) format used for downlink data scheduling is introduced in the new radio (NR), that is, DCI format 1_2.
  • the time domain resource table indicated by DCI format 1_2 is a newly introduced time domain resource table (for example, the time domain resource allocation table dedicated to DCI format 1_2 (PDSCH-time domain allocation list-for DCI format 1_2))
  • the terminal device does not refer to the time domain resource information in the newly introduced time domain resource table when determining the reception timing of the candidate PDSCH, and therefore cannot determine the reception of the corresponding candidate PDSCH.
  • the timing is in the corresponding bit position in the semi-static codebook, so that the corresponding HARQ response message cannot be fed back, which affects the reliability of data transmission.
  • the embodiments of the present application provide a communication method and device, which can improve the reliability and resource utilization of data transmission.
  • an embodiment of the present application provides a communication method, and the execution subject of the method may be a terminal device or a chip applied to the terminal device.
  • the following describes an example where the execution subject is a terminal device.
  • the method includes: after the terminal device determines the candidate time domain resource set, the terminal device determines the codebook to be fed back to the network device according to the candidate time domain resource set.
  • the codebook includes one or more PDSCH feedback information, and the one or more PDSCHs are transmitted through the time domain resource location indicated by the candidate time domain resource set.
  • the candidate time domain resource set includes at least one of the following three time domain resource sets: a first time domain resource set, a second time domain resource set, or a third time domain resource set.
  • the candidate time domain resource set includes a time domain resource set
  • the candidate time domain resource set is a corresponding time domain resource set.
  • the candidate time domain resource set is the union of the multiple time domain resource sets.
  • time domain resource allocation list configured by the PDSCH-configcommon (PDSCH-configcommon) or the time domain resource allocation table predefined by the protocol is denoted as time domain resource table 0. All the time domain resources indicated by the time domain resource table 0 are described as the first time domain resource set.
  • the PDSCH-time domain allocation list (PDSCH-time domain allocation list) configured for the DCI format 1_0 and/or DCI format 1_1 configured by the PDSCH configuration signaling (PDSCH-config) is marked as the time domain resource table 1. All the time domain resources indicated in the time domain resource table 1 are described as the second time domain resource set.
  • the time domain resource allocation table (PDSCH-time domain allocation list-for DCI format 1_2) configured by the PDSCH configuration signaling (PDSCH-config) for DCI format 1_2 is recorded as time domain resource table 2. All the time domain resources indicated in the time domain resource table 2 are described as the third time domain resource set.
  • the candidate time-domain resource set can include all possible time-domain resource sets.
  • the codebook is determined based on the set of candidate time-domain resources, and the codebook includes feedback information corresponding to all possible time-domain resource locations to improve the reliability of data transmission.
  • all possible time-domain resource locations can also transmit data, so as to improve data scheduling flexibility and resource utilization.
  • the communication method in this embodiment of the present application further includes: the terminal device receives the indication information from the network device.
  • the terminal device determining the candidate time domain resource set includes: the terminal device determines the candidate time domain resource set according to the indication information.
  • the terminal device determines the candidate time domain resource set according to the indication information, including: the first indication information does not include the configuration information of the second time domain resource set, but includes the configuration information of the third time domain resource set, The terminal device determines that the candidate time domain resource set is the union of the first time domain resource set and the third time domain resource set.
  • the first indication information includes configuration information of the second time domain resource set and configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set, the second time domain resource set, and The union of the third time domain resource set.
  • the first indication information includes the configuration information of the second time domain resource set, but does not include the configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set and the second time domain resource set The union of resource collections.
  • the first indication information does not include the configuration information of the second time domain resource set and the configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set.
  • the terminal device refers to the configuration status of the third time domain resource set when determining the candidate time domain resource set, even if the candidate time domain resource set does not include the third time domain resource set, there is no possibility of omission.
  • the location of the domain resources to ensure that the codebook can include all possible PDSCH feedback information on the time domain resource locations, to ensure the reliability of transmission, and to improve the utilization of resources.
  • the indication information is one or more DCIs.
  • the terminal device determines the candidate time domain resource set according to the indication information, including: the terminal device determines the candidate time domain resource set according to the DCI format of one or more DCIs.
  • the terminal device can also determine the corresponding candidate time domain resource set according to the DCI format, so that the candidate time domain resource set includes all possible DCI formats corresponding to time domain resource locations , To avoid missing possible time domain resource locations.
  • the indication information is used to indicate the DCI format of one or more DCIs.
  • the terminal device determines the candidate time domain resource set according to the indication information, including: the terminal device determines the candidate time domain resource set according to the DCI format of one or more DCIs.
  • the terminal device can also determine the corresponding candidate time domain resource set according to the DCI format, so that the candidate time domain resource set includes all possible DCI formats corresponding to the time domain. Domain resource location to avoid missing possible time domain resource locations.
  • the terminal device determines the candidate time domain resource set according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs is the first DCI format, then the terminal device determines the candidate time The domain resource set is a time domain resource set corresponding to the first DCI format.
  • the DCI formats of the multiple DCIs are the second DCI format, and there are multiple second DCI formats, and the terminal device determines that the candidate time domain resource set is the union of the multiple time domain resource sets corresponding to the second DCI format.
  • the terminal device can determine the candidate time domain resource set according to the corresponding DCI format, and there is no case that the time domain resource location corresponding to a certain DCI format is missed.
  • the candidate time domain resource set can include the time domain resource set corresponding to the corresponding DCI format, not all time domain resource sets, and the number of bits in the codebook is correspondingly reduced, and the transmission resource overhead is reduced, thereby further ensuring the reliability of transmission. sex.
  • the first time domain resource set is a preset time domain resource set.
  • the terminal device determines the candidate time domain resource set according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs includes the third DCI format but does not include the fourth DCI format, and the terminal device determines the candidate time domain resources The set is the union of the time domain resource set corresponding to the third DCI format and the first time domain resource set.
  • the DCI format of one or more DCIs does not include the third DCI format but includes the fourth DCI format, and the terminal device determines that the candidate time domain resource set is the time domain resource set corresponding to the fourth DCI format and the first time domain resource set The union.
  • the DCI formats of the multiple DCI include a third DCI format and a fourth DCI format
  • the terminal device determines that the candidate time domain resource set is the time domain resource set corresponding to the third DCI format, and the time domain resource set corresponding to the fourth DCI format, And the union of the first time domain resource set.
  • none of the DCI formats of one or more DCIs includes the third DCI format and the fourth DCI format, and the terminal device determines that the candidate time domain resource set is the first time domain resource set.
  • the third DCI format is DCI format 1_2
  • the fourth DCI format is DCI format 1_1.
  • the terminal device can determine the corresponding candidate time domain resource set. Since the third DCI format is referred to in the process of determining the candidate time domain resource set, there is no omission of the time domain resource location corresponding to the third DCI format, so as to ensure that the codebook can include all possible time domain resource locations. PDSCH feedback information to ensure the reliability of transmission.
  • the embodiments of the present application provide a communication method, and the execution subject of the method may be a network device or a chip applied to the network device.
  • the following description will be given by taking a network device as the execution subject as an example.
  • the method includes: after the network device determines the candidate time domain resource set, the network device determines the number of bits of the codebook from the terminal device to be received according to the candidate time domain resource set.
  • the codebook includes feedback information of one or more physical downlink shared channels PDSCH, and one or more PDSCHs are transmitted through the time domain resource location indicated by the candidate time domain resource set.
  • the communication method in this embodiment of the present application further includes: the network device sends instruction information to the terminal device.
  • the network device determining the candidate time domain resource set includes: the network device determines the candidate time domain resource set according to the indication information.
  • the first time domain resource set is a preset time domain resource set.
  • the network device determines the candidate time domain resource set according to the instruction information, including: the instruction information does not include the configuration information of the second time domain resource set, but includes the configuration information of the third time domain resource set, and the network device determines that the candidate time domain resource set is the first The union of a time domain resource set and a second time domain resource set.
  • the indication information includes configuration information of the second time domain resource set and configuration information of the third time domain resource set, and the network device determines that the candidate time domain resource set is the first time domain resource set, the second time domain resource set, and the third time domain resource set. The union of time domain resource collections.
  • the first indication information includes the configuration information of the second time domain resource set, but does not include the configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set and the second time domain resource set The union of resource collections.
  • the first indication information does not include the configuration information of the second time domain resource set and the configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set.
  • the indication information is one or more DCIs.
  • the network device determines the candidate time domain resource set according to the indication information, including: the network device determines the candidate time domain resource set according to the DCI format of one or more DCIs.
  • the indication information is used to indicate the DCI format of one or more DCIs.
  • the network device determines the candidate time domain resource set according to the indication information, including: the network device determines the candidate time domain resource set according to the DCI format of one or more DCIs.
  • the network device determines the candidate time domain resource set according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs is the first DCI format, then the network device determines the candidate time domain resource set The domain resource set is a time domain resource set corresponding to the first DCI format.
  • the DCI formats of the multiple DCIs are the second DCI format, and there are multiple second DCI formats, and the network device determines that the candidate time domain resource set is the union of the multiple time domain resource sets corresponding to the second DCI format.
  • the first time domain resource set is a preset time domain resource set.
  • the network device determines the candidate time domain resource set according to the DCI format of one or more DCIs, including: the DCI format of one or more DCI includes the third DCI format but does not include the fourth DCI format, and the network device determines the candidate time domain resource The set is the union of the time domain resource set corresponding to the third DCI format and the first time domain resource set.
  • the DCI format of one or more DCIs does not include the third DCI format but includes the fourth DCI format, and the network device determines that the candidate time domain resource set is the time domain resource set corresponding to the fourth DCI format and the first time domain resource set The union.
  • the DCI formats of the multiple DCI include a third DCI format and a fourth DCI format
  • the network device determines that the candidate time domain resource set is the time domain resource set corresponding to the third DCI format, and the time domain resource set corresponding to the fourth DCI format, And the union of the first time domain resource set.
  • none of the DCI formats of one or more DCIs includes the third DCI format and the fourth DCI format, and the network device determines that the candidate time domain resource set is the first time domain resource set.
  • an embodiment of the present application provides a communication device, the communication device including: a unit for executing each step in any of the foregoing aspects.
  • the communication device may be the terminal device in the foregoing first aspect, or a device including the foregoing terminal device; or, the communication device may be the network device in the foregoing second aspect, or a device including the foregoing network device.
  • an embodiment of the present application provides a communication device, including a processor and an interface circuit.
  • the processor is configured to communicate with other devices through the interface circuit and execute the communication method provided in any of the above aspects.
  • the processor includes one or more.
  • the communication device may be the terminal device in the foregoing first aspect, or a device including the foregoing terminal device; or, the communication device may be the network device in the foregoing second aspect, or a device including the foregoing network device.
  • an embodiment of the present application provides a communication device, including a processor, configured to be connected to a memory and used to call a program stored in the memory to execute the communication method provided in any aspect.
  • the memory may be located in the communication device or outside the communication device.
  • the processor includes one or more.
  • the communication device may be the terminal device in the foregoing first aspect, or a device including the foregoing terminal device; or, the communication device may be the network device in the foregoing second aspect, or a device including the foregoing network device.
  • an embodiment of the present application provides a communication device, including at least one processor and at least one memory, and the at least one processor is configured to execute the communication method provided in any of the above aspects.
  • the communication device may be the terminal device in the foregoing first aspect, or a device including the foregoing terminal device; or, the communication device may be the network device in the foregoing second aspect, or a device including the foregoing network device.
  • an embodiment of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when it runs on a computer, the computer can execute any one of the above-mentioned communications. method.
  • embodiments of the present application provide a computer program product containing instructions, which when run on a computer, enable the computer to execute the communication method of any one of the foregoing aspects.
  • an embodiment of the present application provides a circuit system, the circuit system includes a processing circuit, and the processing circuit is configured to execute the communication method according to any one of the foregoing aspects.
  • an embodiment of the present application provides a chip.
  • the chip includes a processor, and the processor is coupled to a memory.
  • the memory stores program instructions. When the program instructions stored in the memory are executed by the processor, any one of the foregoing Communication method.
  • an embodiment of the present application provides a communication system, which includes a terminal device in any of the foregoing aspects and a network device in any aspect.
  • Figure 1 is a schematic diagram of the location of feedback information provided by related technologies
  • Figure 2 is a schematic diagram of the location of yet another feedback information provided by related technologies
  • FIG. 3 is a schematic diagram of the position of time domain resources in a candidate time domain resource set provided by related technologies
  • FIG. 4 is a schematic diagram of a communication network architecture provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of another communication method 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 diagram of the hardware structure of a communication device provided by an embodiment of the application.
  • FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of yet another communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • first and “second” in the description of the application and the drawings are used to distinguish different objects, or to distinguish different processing of the same object, rather than describing a specific order of the objects.
  • the terms “including” and “having” and any variations thereof mentioned in the description of this application are intended to cover non-exclusive inclusions.
  • a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units that are not listed, or optionally also Including other steps or units inherent to these processes, methods, products or equipment.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations.
  • the format of the DCI can be applied to before radio resource control (Radio Resource Control, RRC) connection is established, it can also be applied to data scheduling in the RRC reconfiguration process, and it can also be applied to data scheduling after the RRC connection is established.
  • RRC Radio Resource Control
  • the format of the uplink fallback DCI is DCI format 0_0, that is, the fallback DCI format used for scheduling uplink data, which can also be recorded as DCI format 0_0;
  • the format of the downlink fallback DCI is DCI format 1_0, which is used for scheduling
  • the fallback DCI format of the downlink data can also be recorded as DCI format 1_0.
  • DCI format 1_0 needs to indicate the time domain resource location of the downlink data when scheduling downlink data. Specifically, it indicates the time domain resource location of the scheduled downlink data by indicating the configuration information of a row in the time domain resource table corresponding to DCI format 1_0. .
  • the determination method of the time domain resource table corresponding to DCI format 1_0 is as follows:
  • the time domain resource table corresponding to DCI format 1_0 is the time domain resource allocation list (time domain allocation list) configured by the PDSCH common configuration (PDSCH-configcommon) signaling. If the public configuration signaling of the PDSCH does not configure a time domain resource allocation list (time domain allocation list), the time domain resource table corresponding to the
  • the time domain resource table corresponding to the DCI format 1_0 is the PDSCH configuration signaling (PDSCH-config)
  • PDSCH-config The time domain resource allocation list (PDSCH-time domain allocation list) configured for DCI format 1_0 and/or DCI format 1_1.
  • the time domain resource table corresponding to DCI format 1_0 is The time domain resource allocation list (time domain allocation list) configured by the PDSCH-configcommon (PDSCH-configcommon). If the PDSCH common configuration signaling (PDSCH-configcommon) is not configured with a time domain resource allocation list (time domain allocation list), the time domain resource table corresponding to the DCI format 1_0 is the time domain resource allocation table predefined by the protocol.
  • the time domain resource allocation list configured by the PDSCH-configcommon (PDSCH-configcommon) or the time domain resource allocation table predefined by the protocol is recorded as the time domain resource table 0 .
  • the configuration information of each row in the time domain resource table 0 is used to indicate the start symbol, symbol length, and time domain resource mapping type of the time domain resource. All the time domain resources indicated by the time domain resource table 0 are described as the first time domain resource set.
  • the format of the DCI is a DCI format for data scheduling introduced in the new radio (NR) Release 15 (Release 15, R15).
  • the format of the uplink conventional DCI is DCI format 0_1, which is the conventional DCI format used for scheduling uplink data, which can also be recorded as DCI format 0_1;
  • the format of the downlink conventional DCI is DCI format 1_1, which is the conventional DCI format used for scheduling downlink data.
  • the DCI format can also be recorded as DCI format 1_1.
  • DCI format 1_1 needs to indicate the time domain resource location of the downlink data when scheduling downlink data. Specifically, it indicates the time domain resource location of the scheduled downlink data by indicating the configuration information of a row in the time domain resource table corresponding to DCI format 1_1. .
  • the method for determining the time domain resource table corresponding to DCI format 1_1 is as follows:
  • the time domain resource table corresponding to DCI format 1_1 is configured with the time domain resource allocation list (PDSCH-time domain allocation list) for DCI format 1_0 and/or DCI format 1_1.
  • the PDSCH configuration signaling (PDSCH-config) configures the time domain resource allocation list (PDSCH-time domain allocation list) for DCI format 1_0 and/or DCI format 1_1.
  • the time domain resource table corresponding to DCI format 1_1 is The time domain resource allocation list (time domain allocation list) configured by the PDSCH-configcommon (PDSCH-configcommon). If the PDSCH common configuration signaling (PDSCH-configcommon) is not configured with a time domain resource allocation list (time domain allocation list), the time domain resource table corresponding to the DCI format 1_1 is a time domain resource allocation table predefined by the protocol.
  • the PDSCH-time domain allocation list (PDSCH-time domain allocation list) configured by the PDSCH configuration signaling (PDSCH-config) for DCI format 1_0 and/or DCI format 1_1 is marked as time domain Resource Form 1.
  • the configuration information of each row in the time domain resource table 1 is used to indicate the start symbol, symbol length, and time domain resource mapping type of the time domain resource. All the time domain resources indicated in the time domain resource table 1 are described as the second time domain resource set.
  • the format of the DCI is a newly introduced DCI format used for scheduling data in NR R16.
  • the number of bits of the DCI in this format can be very small, and the number of bits can be configured flexibly, which is more suitable for high-reliability services.
  • the format of the uplink compressed DCI is DCI format 0_2, and the compressed DCI format used for scheduling uplink data can also be recorded as DCI format 0_2;
  • the format of the downlink compressed DCI is DCI format 1_2, which is the conventional DCI format used for scheduling downlink data.
  • the format can also be recorded as DCI format 1_2.
  • DCI format 1_2 needs to indicate the time domain resource location of the downlink data when scheduling downlink data. Specifically, it indicates the time domain resource location of the scheduled downlink data by indicating the configuration information of a row in the time domain resource table corresponding to DCI format 1_2. .
  • the determination method of the time domain resource table corresponding to DCI format 1_2 is as follows:
  • the time domain resource table corresponding to DCI format 1_2 is PDSCH
  • the time domain resource table corresponding to DCI format 1_2 is PDSCH
  • the configuration signaling (PDSCH-config) configured for the time domain resource allocation list (PDSCH-time domain allocation list) for DCI format 1_0 and/or DCI format 1_1; if the PDSCH configuration signaling (PDSCH-config) is not configured For the time domain resource allocation table (PDSCH-time domain allocation list) of DCI format 1_0 and/or DCI format 1_1, the time domain resource table corresponding to DCI format 1_2 is configured by the PDSCH common configuration signaling (PDSCH-configcommon) Time domain resource allocation list (time domain allocation list). If the PDSCH common configuration signaling (PDSCH-configcommon) is not configured with a time domain allocation list (time domain allocation list), the time domain resource table corresponding to the DCI format 1_2 is a
  • the time domain resource allocation table (PDSCH-time domain allocation list-for DCI format 1_2) configured by the PDSCH configuration signaling (PDSCH-config) for DCI format 1_2 is recorded as the time domain resource Table 2.
  • the configuration information of each row in the time domain resource table 2 is used to indicate the start symbol, symbol length, and time domain resource mapping type of the time domain resource. All the time domain resources indicated in the time domain resource table 2 are described as the third time domain resource set.
  • each HARQ response message corresponds to a set of bit values to characterize the PDSCH reception status of the terminal equipment at the corresponding candidate PDSCH reception timing.
  • HARQ-ACK codebooks the consecutive bits formed by the HARQ response messages of different PDSCHs are called HARQ-ACK codebooks.
  • the time unit may be a time slot, a mini-slot (mini-slot), or a sub-slot (sub-slot).
  • the size of the HARQ-ACK codebook is semi-static. That is to say, in a certain period of time, if the size of the HARQ-ACK codebook is not configured in the RRC signaling, the size of the HARQ-ACK codebook remains unchanged. In this way, the reliability of the HARQ-ACK codebook is high.
  • 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.
  • the high-level protocol layer includes at least one of the following protocol layers: medium access control (MAC) layer, radio link control (RLC) layer, packet data convergence protocol (PDCP) Layer, radio resource control (RRC) layer and non-access stratum (NAS).
  • MAC medium access control
  • RLC radio link control
  • PDCP packet data convergence protocol
  • RRC radio resource control
  • NAS non-access stratum
  • Time slot is a time domain unit of data scheduling. Under the normal cyclic prefix, a slot includes 14 symbols. Under the extended cyclic prefix, a slot includes 12 symbols.
  • the time unit may be a frame, a subframe, a time slot, or a symbol.
  • the symbol may be an orthogonal frequency division multiplexing (OFDM) symbol.
  • the time length of one frame is 10ms, including 10 subframes, and the time length corresponding to each subframe is 1ms. Under different subcarrier spacing configurations, the number of time slots included in each subframe is different.
  • Step 1 The network device sends DCI to the terminal device.
  • the terminal device receives the DCI from the network device.
  • the format of the DCI includes at least one of the following formats: DCI format 1_0, DCI format 1_1, or DCI format 1_2.
  • DCI includes time domain resource indication information.
  • the time domain resource indication information in the DCI is carried in a bit field of the DCI.
  • the time domain resource indication information in the DCI may be a row index, which is used to index a row in the target time domain resource allocation table.
  • the target time domain resource allocation table is determined according to the DCI format of the DCI. For the method of determining the target time domain resource allocation table corresponding to DCI format 1_0, please refer to the relevant description of "Determining the method of time domain resource table corresponding to DCI format 1_0".
  • DCI includes K1 indication information.
  • the K1 indication information is used to indicate the correspondence between the time unit for receiving the PDSCH and the time unit for feeding back the HARQ response message.
  • the value of K1 is a certain value in the K1 set.
  • the K1 set is ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and the three bits in the DCI are "011", then the value of K1 is 4.
  • the terminal device receives the PDSCH in the nth time unit, the terminal device feeds back the HARQ response message to the terminal device in the (n+K1)th time unit, as shown in FIG. 1 in detail.
  • n is a positive integer greater than or equal to 1.
  • the time unit may be a time slot, a mini-slot, or a sub-slot.
  • Step 2 The terminal device determines the time domain resource location of the PDSCH according to the time domain resource indication information in the DCI.
  • the terminal device determines the time domain resource allocation table corresponding to the DCI format of the DCI, and indexes the corresponding row in the time domain resource allocation table corresponding to the DCI format of the DCI according to the time domain resource indication information in the DCI.
  • the time domain resource location indicated by the corresponding row in the time domain resource allocation table corresponding to the DCI format of the DCI is used as the time domain resource location of the PDSCH.
  • Step 3 The network equipment sends the PDSCH to the terminal equipment at the time domain resource location of the PDSCH.
  • the terminal device receives the PDSCH from the network device at the time domain resource location of the PDSCH.
  • Step 4 The terminal device determines the time domain resource location for feeding back the HARQ response message according to the K1 indication information in the DCI and the time domain resource location of the PDSCH.
  • the HARQ response message is determined according to the decoding result of the downlink data carried in the PDSCH. Specifically, if the downlink data is successfully received, the HARQ response information is an acknowledgement (acknowledgement, ACK); if the downlink data fails to be received, the HARQ response information is a negative acknowledgement (NACK).
  • acknowledgement acknowledgement
  • NACK negative acknowledgement
  • the terminal device In the semi-static codebook mode, the terminal device generates a HARQ-ACK codebook from multiple HARQ response messages. Take the HARQ-ACK codebook generation process of the i-th time slot as an example for illustration:
  • the (i-4)th slot, the (i-3)th slot, the (i-2)th slot, and the Both the (i-1) time slot and the downlink data transmitted in the i-th time slot may feed back HARQ response messages in the i-th time slot, as shown in Figure 2.
  • the specific process for the terminal device to determine the number of bits to be fed back in each time slot includes the following steps 5 and 6:
  • Step 5 The terminal device determines a set of candidate time domain resources.
  • the candidate time domain resource set It is the first collection of time domain resources.
  • the candidate time domain resource set is the first The union of the time domain resource set and the second time domain resource set.
  • Step 6 The terminal device determines the HARQ-ACK codebook according to the candidate time domain resource set.
  • the candidate time domain resource set starting from the time domain resource position of the candidate with the first start symbol, it is judged whether there are other candidate time domain resource positions overlapping with it: if there are, then all the positions with the top
  • the candidate time domain resource positions of the overlapping candidate time domain resource positions are all classified as the first candidate PDSCH receiving opportunity.
  • the second candidate PDSCH reception timing determines the second candidate PDSCH reception timing, and so on, until there is no remaining candidate time domain resource position.
  • the number of bits of the HARQ-ACK codebook corresponding to the time slot can also be determined.
  • the bit order in the HARQ-ACK codebook is arranged in the order of the candidate PDSCH reception timing.
  • the candidate time domain resource set includes four candidate time domain resource positions, which are respectively symbol 1 to symbol 3, symbol 2 to symbol 5, symbol 5 to symbol 9, and symbol 11 to symbol 13, as shown in FIG. 3
  • the slash-filled square is shown.
  • the time domain resource location of the first candidate ie symbol 1 to symbol 3 overlaps with the time domain resource location of the second candidate (ie symbol 2 to symbol 5). Therefore, the time domain resource location of the first candidate The time domain resource location of the second candidate corresponds to the receiving opportunity of the first candidate PDSCH.
  • the remaining candidate time domain resource positions are the third candidate time domain resource position (ie symbols 5 to 9) and the fourth candidate time domain resource position (ie symbols 11 to 13), both of which are in parallel Does not overlap.
  • the third candidate time domain resource location corresponds to the second candidate PDSCH receiving opportunity
  • the fourth candidate time domain resource location corresponds to the third candidate PDSCH receiving opportunity. If each candidate PDSCH receiving opportunity corresponds to one bit, the HARQ response message of the time slot is the three-bit feedback information in the HARQ-ACK codebook.
  • the terminal equipment repeats the above steps 5 and 6 to determine the (i-4)th time slot, the (i-3)th time slot, the (i-2)th time slot, and the (i-1)th time slot.
  • the time domain resource table corresponding to DCI format 1_0 is time domain resource table 0
  • the time domain resource table corresponding to DCI format 1_1 is time domain resource table 1
  • the time domain resource table of DCI format 1_2 is time domain resource table 2.
  • the candidate time-domain resource set can be the first time-domain resource set (the time-domain resource indicated in the real-time resource table 0), or the first time-domain resource set and the second time-domain resource set. The union of the domain resource set (the time domain resource indicated in the real-time domain resource table 1).
  • the third time domain resource set (the time domain resource indicated in the real-time domain resource table 2) is not referred to, and the candidate time domain resource set does not include the third time domain resource.
  • Set (the time domain resource indicated in the real-time domain resource table 2), and the HARQ-ACK codebook determined by the terminal device does not include the feedback position of the PDSCH received at the time domain resource position indicated in the time domain resource table 2,
  • the downlink data scheduled by the DCI format 1_2 has no feedback position.
  • the network device cannot receive the corresponding HARQ response message, which affects the reliability of data transmission.
  • the network device cannot transmit data at the corresponding time domain resource location, which reduces the flexibility of data scheduling and wastes transmission resources.
  • FIG. 4 is a schematic structural diagram of a communication system applicable to the communication method of the embodiment of the present application.
  • the communication system may include a terminal device 40 and a network device 41. Among them, the terminal device 40 and the network device 41 are wirelessly connected. Wherein, there may be one or more terminal devices 40, and there may also be one or more network devices 41.
  • Figure 4 shows only one network device and two terminal devices.
  • FIG. 4 is only a schematic diagram, and does not constitute a limitation on the application scenario of the communication method according to the embodiment of the present application.
  • the terminal device 40 also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides users with voice/data connectivity, such as , Handheld devices or vehicle-mounted devices with wireless connectivity.
  • the terminal equipment can specifically be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented) Reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and wireless terminals in smart grids Terminals, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, terminal devices in future 5G communication networks or communication networks after 5G Etc., the embodiment of the present application does not limit this.
  • the network device 41 is a device in a wireless communication network, for example, a radio access network (RAN) node that connects the terminal device 40 to the wireless communication network.
  • RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (WiFi) access point (AP), or network side equipment in the future 5G communication network or communication network after 5G.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • the embodiment of the present application provides a communication method, which is applied in the process of generating a semi-static codebook.
  • the communication method includes the following steps:
  • the terminal device determines a set of candidate time domain resources.
  • the candidate time domain resource set includes at least one of the following three time domain resource sets: a first time domain resource set, a second time domain resource set, or a third time domain resource set.
  • the candidate time domain resource set includes a time domain resource set
  • the candidate time domain resource set is a corresponding time domain resource set.
  • the candidate time domain resource set is the union of the multiple time domain resource sets.
  • the network device determines a set of candidate time domain resources.
  • S502 can refer to the related description of S501, that is, the network device executes the related processing process, which will not be repeated here. Since the network device and the terminal device use the same processing procedure to determine the set of candidate time domain resources, it can be ensured that the set of candidate time domain resources determined by the network device and the terminal device are the same.
  • the network device transmits the PDSCH to the terminal device at the time domain resource location indicated by the candidate time domain resource set.
  • the terminal device receives the PDSCH from the network device at the time domain resource location indicated by the candidate time domain resource set.
  • the number of PDSCHs may be one or multiple.
  • the terminal device determines a codebook to be fed back to the network device according to the candidate time domain resource set.
  • the codebook includes the feedback information of one or more PDSCHs mentioned above.
  • the codebook is the HARQ-ACK codebook.
  • the network device determines the number of bits of the codebook to be received according to the candidate time domain resource set.
  • the codebook is still the HARQ-ACK codebook.
  • the codebook is still the HARQ-ACK codebook.
  • the processing procedure of step 6 is also adopted, the number of bits in the codebook determined by the network device is the same as the number of bits in the codebook determined by the terminal device. Consistent, so that the network device can determine the size of the transmission resource used when receiving the codebook, and improve the utilization of the transmission resource.
  • the terminal device executes S506:
  • S506 The terminal device sends the codebook to the network device.
  • the network device receives the codebook from the terminal device.
  • the terminal device may perform S503 first, then S504, or perform S504 first, then S503, or simultaneously perform S503 and S504.
  • the embodiment of the present application does not limit the execution sequence of S503 and S504.
  • the terminal device may execute S503 first, then execute S505, or execute S505 first, then execute S503, or execute S503 and S505 at the same time.
  • the embodiment of the present application does not limit the execution sequence of S503 and S505.
  • the candidate time domain resource set determined by the terminal device can include a newly added time domain resource set, that is, a third time domain resource set.
  • the candidate time domain resource set can include all possible time domain resource sets.
  • the codebook can also include the PDSCH feedback information at the time domain resource location indicated by the third time domain resource set.
  • no PDSCH is transmitted at the time domain resource location indicated by the third time domain resource set.
  • the codebook does not include the PDSCH feedback information at the time domain resource location indicated by the third time domain resource set.
  • the codebook includes feedback information corresponding to all possible time-domain resource locations, so as to improve the reliability of data transmission.
  • all possible time-domain resource locations can also transmit data, so as to improve data scheduling flexibility and resource utilization.
  • the terminal device determines the candidate time domain resource set according to the received first indication information.
  • the communication method provided by the embodiment of the present application further includes S500:
  • the network device sends first indication information to the terminal device.
  • the terminal device receives the first indication information from the network device.
  • the specific implementation of the first indication information may be multiple: the first indication information may be PDSCH configuration signaling (PDSCH-config), that is, the first indication information may include the configuration information of the second time domain resource set and/or Configuration information of the third time domain resource set, the first indication information may not include the configuration information of the second time domain resource set and the configuration information of the third time domain resource set; the first indication information may also be one or more DCIs ; The first indication information may also be one or more DCI formats of DCI.
  • PDSCH-config PDSCH configuration signaling
  • S501 can be specifically implemented as S5010:
  • the terminal device determines a candidate time domain resource set according to the first indication information.
  • the method of determining the candidate time-domain resource set by the terminal device according to the first indication information is also different, such as but not limited to the following four methods:
  • the first indication information is PDSCH configuration signaling (PDSCH-config).
  • the first indication information may include the configuration information of the second time domain resource set and/or the configuration information of the third time domain resource set, and the first indication information may not include the configuration of the second time domain resource set.
  • Information and the configuration information of the third time domain resource set; specifically including the following four situations, in different situations, the candidate time domain resource set determined by the terminal device is as follows:
  • the first indication information includes configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the union of the first time domain resource set and the third time domain resource set. That is, the first indication information does not include the configuration information of the second time domain resource set.
  • the first indication information includes the configuration information of the second time domain resource set and the configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set and the second time domain resource set And the union of the third time domain resource set.
  • the first indication information includes the configuration information of the second time domain resource set, but does not include the configuration information of the third time domain resource set, and the terminal device determines that the candidate time domain resource set is the first time domain resource set and the second time domain resource set.
  • Case 4 The terminal device determines that the candidate time domain resource set is the first time domain resource set. That is, the first indication information does not include the configuration information of the second time domain resource set and the configuration information of the third time domain resource set.
  • Time domain resource table 0 is a time domain resource allocation list configured by PDSCH-configcommon (PDSCH-configcommon), or time domain resource table 0 is a time domain resource allocation table predefined by the protocol.
  • the terminal device determines that the time domain resource allocation table 0 always exists, that is, the first time domain resource set always exists.
  • the candidate time domain resource set includes the time domain resource of the third time domain resource set.
  • the terminal device refers to the third time domain resource set when determining the candidate time domain resource set, and if the first indication information does not include the configuration information of the third time domain resource set, then the candidate time domain resource set Excluding the time domain resources of the third time domain resource set, the terminal device does not need to transmit the PDSCH feedback information on the time domain resource location indicated by the third time domain resource set.
  • the candidate time domain resource set in the prior art may not include the time domain resources of the third time domain resource set, but in the prior art, it is because the third time domain resource set is not referred to when determining the candidate time domain resource set.
  • the first indication information does not include the configuration information of the third time domain resource. In this way, when the terminal device refers to the configuration status of the third time domain resource set when determining the candidate time domain resource set, even if the candidate time domain resource set does not include the third time domain resource set, there is no possibility of missing time domain resources.
  • the first indication information is one or more DCIs.
  • S5010 is specifically implemented as: the terminal device determines the candidate time domain resource set according to the DCI format of one or more DCIs.
  • the DCI format of one or more DCIs may be the same or different.
  • the DCI format may be at least one of the following three formats: DCI format 1_0 DCI, DCI format 1_1 DCI, or DCI format 1_2 DCI.
  • the terminal device first determines the DCI format of one or more DCIs, and then determines the time domain resource set corresponding to the corresponding DCI format. For details, please refer to "Determination Method of the Time Domain Resource Table Corresponding to DCI Format 1_1" and “Corresponding to DCI Format 1_1 The relevant descriptions of the "Determining Method of the Time Domain Resource Table” and the “Determining Method of the Time Domain Resource Table Corresponding to DCI Format 1_1" will not be repeated here.
  • the terminal device can determine the candidate time domain resource set. Specifically, for example, but not limited to the following two examples:
  • Example 1 The DCI format of one or more DCIs is the first DCI format, and the terminal device determines that the candidate time domain resource set is the time domain resource set corresponding to the first DCI format; or, the DCI format of the multiple DCIs is the second DCI format.
  • the DCI format there are multiple second DCI formats, and the terminal device determines that the candidate time domain resource set is the union of the multiple time domain resource sets corresponding to the second DCI format.
  • the first DCI format is any kind of DCI format, for example, the first DCI format is DCI format 1_0, or the first DCI format is DCI format 1_1, or the first DCI format is DCI format 1_2.
  • the second DCI format is multiple DCI formats, for example, the second DCI format is DCI format 1_0 and DCI format 1_1, or the second DCI format is DCI format 1_0 and DCI format 1_2, or the second DCI format is DCI format 1_1 and DCI format 1_2, or the second DCI format is DCI format 1_0, DCI format 1_1, and DCI format 1_2.
  • the terminal device can determine the candidate time domain resource set according to the corresponding DCI format. Since the candidate time domain resource set can include the time domain resource set corresponding to the corresponding DCI format, there is no case of missing the time domain resource location corresponding to a certain DCI format, so as to ensure that the codebook can include all possible time domain resource locations PDSCH feedback information, thereby ensuring reliability and improving resource utilization.
  • the candidate time domain resource set can include the time domain resource set corresponding to the corresponding DCI format, not all time domain resource sets, and the number of bits in the codebook is correspondingly reduced, and the transmission resource overhead is reduced, thereby further ensuring the reliability of transmission. sex.
  • the DCI format of one or more DCIs includes the third DCI format. That is, the DCI format of the one or more DCIs does not include the fourth DCI format.
  • the terminal device determines that the candidate time domain resource set is the union of the time domain resource set corresponding to the third DCI format and the first time domain resource set.
  • the DCI format of one or more DCIs includes the fourth DCI format. That is, the DCI format of the one or more DCIs does not include the third DCI format.
  • the terminal device determines that the candidate time domain resource set is the union of the time domain resource set corresponding to the fourth DCI format and the first time domain resource set.
  • the DCI formats of the multiple DCI include a third DCI format and a fourth DCI format
  • the terminal device determines that the candidate time domain resource set is the time domain resource set corresponding to the third DCI format, and the time domain resource set corresponding to the fourth DCI format, And the union of the first time domain resource set.
  • none of the DCI formats of one or more DCIs includes the third DCI format and the fourth DCI format, and the terminal device determines that the candidate time domain resource set is the first time domain resource set.
  • the third DCI format is DCI format 1_2
  • the fourth DCI format is DCI format 1_1.
  • the terminal device can determine the corresponding candidate time domain resource set. Since the third DCI format is referred to in the process of determining the candidate time domain resource set, there is no omission of the time domain resource location corresponding to the third DCI format, so as to ensure that the codebook can include all possible time domain resource locations. PDSCH feedback information to ensure the reliability of transmission.
  • the first indication information is used to indicate the DCI format of one or more DCIs.
  • S5010 is specifically implemented as: the terminal device determines the candidate time domain resource set according to the DCI format of one or more DCIs.
  • the DCI format of one or more DCIs may be the same or different.
  • the DCI format may be at least one of the following three formats: DCI format 1_0, DCI format 1_1, or DCI format 1_2.
  • the first indication information may be carried in high-layer signaling, and is used to indicate which DCI formats the terminal device needs to receive.
  • the terminal device determines the candidate time-domain resource set according to the DCI format of one or more DCIs.
  • the terminal device determines the candidate time-domain resource set according to the DCI format of one or more DCIs
  • the terminal device determines the candidate time domain resource set according to different DCI formats, and the candidate time domain resource set It can also include the time domain resource set of the corresponding DCI format, and there is no situation of missing the time domain resource location corresponding to a certain DCI format, so as to ensure that the codebook can include the PDSCH feedback information at all possible time domain resource locations, thereby Ensure the reliability of transmission.
  • the terminal device also needs to receive second indication information, where the second indication information is used to indicate that the codebook generation mode is the semi-static codebook mode.
  • the terminal equipment adopts the semi-static codebook mode to generate the HARQ-ACK codebook.
  • the network equipment adopts the semi-static codebook mode to determine the number of bits of the HARQ-ACK codebook.
  • an embodiment of the present application also provides a communication device.
  • the communication device may be the network element in the foregoing method embodiment, or a device including the foregoing network element, or a component that can be used for a network element.
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present 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.
  • FIG. 7 shows a schematic structural diagram of a communication device 700.
  • the communication device 700 includes a transceiver module 701 and a processing module 702.
  • the processing module 702 is used to determine a candidate time domain resource set.
  • the processing module 702 is further configured to determine a codebook to be fed back to the network device according to the set of candidate time domain resources.
  • the codebook includes feedback information of one or more physical downlink shared channels PDSCH, and one or more PDSCHs are transmitted through the time domain resource location indicated by the candidate time domain resource set.
  • the transceiver module 701 is used to send a codebook to a network device.
  • the transceiver module 701 is also used to receive instruction information from a network device.
  • the processing module 702 is configured to determine a candidate time-domain resource set, including: determining a candidate time-domain resource set according to indication information.
  • the first time domain resource set is a preset time domain resource set.
  • the processing module 702 is configured to determine the candidate time domain resource set according to the indication information, including: the indication information does not include the configuration information of the second time domain resource set, but includes the configuration information of the third time domain resource set, and the processing module 702 is used to determine the candidate time domain resource set.
  • the time domain resource set is the union of the first time domain resource set and the third time domain resource set.
  • the indication information includes configuration information of the second time domain resource set and configuration information of the third time domain resource set, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set or the second time domain resource set And the union of the third time domain resource set.
  • the indication information does not include the configuration information of the second time domain resource set and the configuration information of the third time domain resource set, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set.
  • the indication information includes the configuration information of the second time domain resource set, but does not include the configuration information of the third time domain resource set, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set and the third time domain resource set. The union of domain resource collections.
  • the indication information is one or more DCIs.
  • the processing module 702 is configured to determine a candidate time domain resource set according to the indication information, including: determining a candidate time domain resource set according to the DCI format of one or more DCIs.
  • the indication information is used to indicate the DCI format of one or more DCIs.
  • the processing module 702 is configured to determine a candidate time domain resource set according to the indication information, including: determining a candidate time domain resource set according to the DCI format of one or more DCIs.
  • the processing module 702 is configured to determine a set of candidate time domain resources according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs is the first DCI format, then the processing module 702 is used to determine that the candidate time domain resource set is the time domain resource set corresponding to the first DCI format.
  • the DCI formats of the multiple DCIs are the second DCI format, and there are multiple second DCI formats, and the processing module 702 is configured to determine that the candidate time domain resource set is the union of the multiple time domain resource sets corresponding to the second DCI format.
  • the first time domain resource set is a preset time domain resource set.
  • the processing module 702 is configured to determine a candidate time domain resource set according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs includes the third DCI format, but does not include the fourth DCI format.
  • the processing module 702 uses It is determined that the candidate time domain resource set is the union of the time domain resource set corresponding to the third DCI format and the first time domain resource set.
  • the DCI format of one or more DCIs does not include the third DCI format, but includes the fourth DCI format, and the processing module 702 is configured to determine that the candidate time domain resource set is the time domain resource set corresponding to the fourth DCI format and the first time The union of domain resource collections.
  • the DCI formats of the multiple DCIs include a third DCI format and a fourth DCI format, and the processing module 702 is configured to determine that the candidate time domain resource set is the time domain resource set corresponding to the third DCI format, and the time domain corresponding to the fourth DCI format Resource collection, and the union of the first time domain resource collection.
  • none of the DCI formats of one or more DCIs includes the third DCI format and the fourth DCI format, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set.
  • the processing module 702 is used to determine a candidate time domain resource set.
  • the processing module 702 is further configured to determine the number of bits of the codebook from the terminal device to be received according to the candidate time domain resource set.
  • the codebook includes feedback information of one or more physical downlink shared channels PDSCH, and one or more PDSCHs are transmitted through the time domain resource location indicated by the candidate time domain resource set.
  • the transceiver module 701 is used to receive a codebook from a terminal device.
  • the transceiver module 701 is also used to send instruction information to the terminal device.
  • the processing module 702 is configured to determine a candidate time-domain resource set, including: determining a candidate time-domain resource set according to indication information.
  • the first time domain resource set is a preset time domain resource set.
  • the processing module 702 is configured to determine the candidate time domain resource set according to the indication information, including: the indication information does not include the configuration information of the second time domain resource set, but includes the configuration information of the third time domain resource set, and the processing module 702 is used to determine the candidate time domain resource set.
  • the time domain resource set is the union of the first time domain resource set and the third time domain resource set.
  • the indication information includes configuration information of the second time domain resource set and configuration information of the third time domain resource set, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set or the second time domain resource set And the union of the third time domain resource set.
  • the indication information does not include the configuration information of the second time domain resource set and the configuration information of the third time domain resource set, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set.
  • the indication information includes the configuration information of the second time domain resource set, but does not include the configuration information of the third time domain resource set, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set and the third time domain resource set. The union of domain resource collections.
  • the indication information is one or more DCIs.
  • the processing module 702 is configured to determine a candidate time domain resource set according to the indication information, including: determining a candidate time domain resource set according to the DCI format of one or more DCIs.
  • the indication information is used to indicate the DCI format of one or more DCIs.
  • the processing module 702 is configured to determine a candidate time domain resource set according to the indication information, including: determining a candidate time domain resource set according to the DCI format of one or more DCIs.
  • the processing module 702 is configured to determine a set of candidate time domain resources according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs is the first DCI format, then the processing module 702 is used to determine that the candidate time domain resource set is the time domain resource set corresponding to the first DCI format.
  • the DCI formats of the multiple DCIs are the second DCI format, and there are multiple second DCI formats, and the processing module 702 is configured to determine that the candidate time domain resource set is the union of the multiple time domain resource sets corresponding to the second DCI format.
  • the first time domain resource set is a preset time domain resource set.
  • the processing module 702 is configured to determine a candidate time domain resource set according to the DCI format of one or more DCIs, including: the DCI format of one or more DCIs includes the third DCI format, but does not include the fourth DCI format.
  • the processing module 702 uses It is determined that the candidate time domain resource set is the union of the time domain resource set corresponding to the third DCI format and the first time domain resource set.
  • the DCI format of one or more DCIs does not include the third DCI format, but includes the fourth DCI format, and the processing module 702 is configured to determine that the candidate time domain resource set is the time domain resource set corresponding to the fourth DCI format and the first time The union of domain resource collections.
  • the DCI formats of the multiple DCIs include a third DCI format and a fourth DCI format, and the processing module 702 is configured to determine that the candidate time domain resource set is the time domain resource set corresponding to the third DCI format, and the time domain corresponding to the fourth DCI format Resource collection, and the union of the first time domain resource collection.
  • none of the DCI formats of one or more DCIs includes the third DCI format and the fourth DCI format, and the processing module 702 is configured to determine that the candidate time domain resource set is the first time domain resource set.
  • processing module 702 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component
  • transceiver module 701 may be implemented by a transceiver or a transceiver-related circuit component.
  • an embodiment of the present application further provides a communication device 800.
  • the communication device 800 includes a processor 810, a memory 820, and a transceiver 830.
  • the memory 820 stores instructions or programs
  • the processor 810 is configured to execute the instructions or programs stored in the memory 820.
  • the processor 810 is configured to perform the operations performed by the processing module 702 in the foregoing embodiment
  • the transceiver 830 is configured to perform the operations performed by the transceiver module 701 in the foregoing embodiment.
  • the communication device 700 or the communication device 800 of the embodiment of the present application may correspond to the terminal device in the communication method of FIG. 5 in the embodiment of the present application, and the operation and/or function of each module in the communication device 700 or the communication device 800 In order to realize the corresponding process of each method in FIG. 5, for the sake of brevity, it will not be repeated here.
  • FIG. 9 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 9 only one memory and processor are shown in FIG. 9. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device
  • the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiving unit 910 and a processing unit 920.
  • the transceiving unit 910 may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit 920 may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiving unit 910 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 910 can be regarded as the sending unit, that is, the transceiving unit 910 includes a receiving unit and a sending unit.
  • the transceiving unit 910 may also be referred to as a transceiver, a transceiver, or a transceiving circuit or the like.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 910 is configured to perform sending and receiving operations on the terminal device side in the foregoing method embodiment
  • processing unit 920 is configured to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.
  • the transceiving unit 910 is used to perform the transceiving operation on the terminal device side in S503 in FIG. 5, and the transceiving unit 910 is also used to perform the transceiving operation on the terminal device side in S506 in FIG. 5, and/ Or the transceiving unit 910 is also configured to perform other transceiving steps on the terminal device side in the embodiment of the present application.
  • the processing unit 920 is configured to execute S501 and S504 in FIG. 5, and/or the processing unit 920 is also configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiver unit 910 is configured to perform the sending operation on the terminal device side in S500 in FIG. 6, and/or the transceiver unit 910 is also configured to perform other transceiver operations on the terminal device side in the embodiment of the present application step.
  • the processing unit 920 is configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the device may include a transceiver unit and a processing unit.
  • the transceiving unit may be an input/output circuit and/or a communication interface;
  • the processing unit is an integrated processor or microprocessor or integrated circuit.
  • the device shown in FIG. 10 can be referred to.
  • the device can perform functions similar to the processor 810 in FIG. 8.
  • the device includes a processor 1010, a data sending processor 1020, and a data receiving processor 1030.
  • the processing module 702 in the foregoing embodiment may be the processor 1010 in FIG. 10, and completes corresponding functions.
  • the transceiver module 701 in the foregoing embodiment may be the sending data processor 1020 and/or the receiving data processor 1030 in FIG. 10.
  • FIG. 10 shows a channel encoder, a channel decoder, a symbol generation module, and a channel estimation module, it can be understood that these modules do not constitute a restrictive description of the embodiment of the present application, and are merely illustrative.
  • Fig. 11 shows another form of an embodiment of the present application.
  • the processing device 1100 includes modules such as a modulation subsystem, a central processing subsystem, a peripheral subsystem, and a multimedia subsystem.
  • the communication device in the embodiment of the present application may be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1103 and an interface 1101. Among them, the processor 1103 completes the function of the aforementioned processing module 702, and the interface 1101 completes the function of the aforementioned transceiver module 701.
  • the modulation subsystem includes a memory 1102, a processor 1103, and a program stored in the memory 1102 and running on the processor.
  • the processor 1103 executes the program on the terminal device side in the above method embodiment. Methods.
  • the memory 1102 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1100, as long as the memory 1102 can be connected to the The processor 1103 is sufficient.
  • a computer-readable storage medium is provided, and an instruction is stored thereon.
  • the instruction is executed, the method on the terminal device side in the foregoing method embodiment is executed.
  • a computer program product containing instructions is provided, and when the instructions are executed, the method on the terminal device side in the foregoing method embodiment is executed.
  • the network device may be as shown in FIG. 12, and the communication device 1200 includes one or more radio frequency units, such as a remote radio unit (RRU) 1210 and one or Multiple baseband units (BBU) (also referred to as digital units, DU) 1220.
  • the RRU 1210 may be called a transceiver module, which corresponds to the transceiver module 701 in FIG. 7.
  • the transceiver module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1211 ⁇ RF unit 1212.
  • the RRU1210 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending random access response messages to terminal equipment.
  • the 1220 part of the BBU is mainly used to perform baseband processing, control the base station, and so on.
  • the RRU 1210 and the BBU 1220 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1220 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 702 in FIG. 7, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing random access response message.
  • the BBU 1220 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network with a single access standard (such as an LTE network), or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 1220 also includes a memory 1221 and a processor 1222.
  • the memory 1221 is used to store necessary instructions and data.
  • the processor 1222 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation process of the network device in the foregoing method embodiment.
  • the memory 1221 and the processor 1222 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • processors mentioned in the embodiments of this application may be a central processing unit (central processing unit, CPU), or other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits ( application specific integrated circuit (ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • CPU central processing unit
  • DSP digital signal processors
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored 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 components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.
  • 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 function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

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Abstract

本申请提供通信方法及装置，涉及通信技术领域，能够提高数据传输的可靠性和资源利用率。该方法包括：终端设备确定候选时域资源集合之后，终端设备根据候选时域资源集合，确定向网络设备反馈的码本。其中，码本中包括一个或多个物理下行共享信道PDSCH的反馈信息，一个或多个PDSCH通过候选时域资源集合所指示的时域资源位置传输。

Description

通信方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
在半静态码本模式下，终端设备基于预配置的信息确定候选物理下行共享信道(physical downlink shared channel，PDSCH)的接收时机。在候选PDSCH的接收时机上，终端设备接收PDSCH中承载的下行数据，再向网络设备反馈自动重传请求(hybrid automatic repeat request，HARQ)响应消息。其中，每条HARQ响应消息对应一组比特位的取值，以表征终端设备在相应候选PDSCH的接收时机上的PDSCH接收状况。在一个时间单元内，不同候选PDSCH的接收时机对应的HARQ响应消息构成的连续的比特，即称为码本。
然而，新空口(new radio，NR)中引入一种新的用于下行数据调度的下行控制信息(downlink control information，DCI)格式(format)，即DCI格式1_2。在DCI格式1_2指示的时域资源表格为新引入的时域资源表格(如专用于DCI格式1_2的时域资源分配表格(PDSCH-time domain allocation list-for DCI format 1_2))的情况下，若仍按照已有的确定半静态码本的过程，则终端设备在确定候选PDSCH的接收时机时未参考新引入的时域资源表格中的时域资源信息，也就无法确定相应的候选PDSCH的接收时机在半静态码本中对应的比特位置，从而无法反馈相应的HARQ响应消息，影响数据传输的可靠性。
发明内容
本申请实施例提供一种通信方法及装置，能够提高数据传输的可靠性和资源利用率。
为达到上述目的，本申请实施例采用如下技术方案：
第一方面，本申请实施例提供一种通信方法，该方法的执行主体可以是终端设备，也可以是应用于终端设备中的芯片。下面以执行主体是终端设备为例进行描述。该方法包括：终端设备确定候选时域资源集合之后，终端设备根据候选时域资源集合，确定向网络设备反馈的码本。其中，码本中包括一个或多个PDSCH的反馈信息，一个或多个PDSCH通过候选时域资源集合所指示的时域资源位置传输。候选时域资源集合包括如下三个时域资源集合中的至少一个：第一时域资源集合、第二时域资源集合或第三时域资源集合。在候选时域资源集合包括一个时域资源集合的情况下，候选时域资源集合为相应的时域资源集合。在候选时域资源集合包括多个时域资源集合的情况下，候选时域资源集合为多个时域资源集合的并集。
这里，将PDSCH的公共配置信令(PDSCH-configcommon)配置的时域资源分配表(time domain allocation list)或协议预定义的时域资源分配表，记为时域资源表格0。时域资源表格0所指示的所有的时域资源描述为第一时域资源集合。将PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)，记为时域资源表格1。时域资源表格1所指示 的所有的时域资源描述为第二时域资源集合。将PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_2的时域资源分配表(PDSCH-time domain allocation list-for DCI format 1_2)，记为时域资源表格2。时域资源表格2所指示的所有的时域资源描述为第三时域资源集合。
如此，候选时域资源集合能够包括所有可能的时域资源集合。码本是根据候选时域资源集合确定的，码本中包括所有可能的时域资源位置对应的反馈信息，以提高数据传输可靠性。在码本中包括所有可能的时域资源位置对应的反馈信息的情况下，所有可能的时域资源位置也就均能够传输数据，以提高数据调度灵活性和资源利用率。
在一种可能的设计中，终端设备确定候选时域资源集合之前，本申请实施例通信方法还包括：终端设备接收来自网络设备的指示信息。终端设备确定候选时域资源集合，包括：终端设备根据指示信息确定候选时域资源集合。
在一种可能的设计中，终端设备根据指示信息确定候选时域资源集合，包括：第一指示信息不包括第二时域资源集合的配置信息，但包括第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合和第三时域资源集合的并集。或者，第一指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合、第二时域资源集合和第三时域资源集合的并集。或者，第一指示信息包括第二时域资源集合的配置信息，但不包括第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合和第二时域资源集合的并集。或者，第一指示信息不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合。
也就是说，在终端设备确定候选时域资源集合时参考第三时域资源集合的配置状况的情况下，即使候选时域资源集合不包括第三时域资源集合，也不存在遗漏可能的时域资源位置的情况，以保证码本能够包括所有可能的时域资源位置上的PDSCH的反馈信息，保证传输的可靠性，提高资源的利用率。
在一种可能的设计中，指示信息为一个或多个DCI。终端设备根据指示信息确定候选时域资源集合，包括：终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合。
如此，在指示信息为一个或多个DCI的情况下，终端设备也能够根据DCI格式，确定相应的候选时域资源集合，使得候选时域资源集合包括所有可能的DCI格式对应的时域资源位置，避免遗漏可能的时域资源位置的情况。
在一种可能的设计中，指示信息用于指示一个或多个DCI的DCI格式。终端设备根据指示信息确定候选时域资源集合，包括：终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合。
如此，在指示信息指示一个或多个DCI的DCI格式的情况下，终端设备也能够根据DCI格式，确定相应的候选时域资源集合，使得候选时域资源集合包括所有可能的DCI格式对应的时域资源位置，避免遗漏可能的时域资源位置的情况。
在一种可能的设计中，终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式均为第一DCI格式，则终端设备确定候选时域资源集合为第一DCI格式对应的时域资源集合。或者，多个DCI的DCI格式为第二DCI格式，第二DCI格式为多个，终端设备确定候选时域资源集合为第二DCI格式对应的多个时域资 源集合的并集。
如此，无论DCI格式是一个还是多个，终端设备都能够根据相应的DCI格式确定候选时域资源集合，不存在遗漏某一DCI格式对应的时域资源位置的情况。并且，候选时域资源集合能够包括相应DCI格式对应的时域资源集合，并非包括所有的时域资源集合，也相应降低了码本的比特数量，降低传输资源开销，从而进一步保证了传输的可靠性。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式包括第三DCI格式，但不包括第四DCI格式，终端设备确定候选时域资源集合为第三DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式不包括第三DCI格式，但包括第四DCI格式，终端设备确定候选时域资源集合为第四DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，多个DCI的DCI格式包括第三DCI格式和第四DCI格式，终端设备确定候选时域资源集合为第三DCI格式对应的时域资源集合，第四DCI格式对应的时域资源集合，和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，终端设备确定候选时域资源集合为第一时域资源集合。
其中，第三DCI格式为DCI格式1_2，第四DCI格式为DCI格式1_1。
如此，无论DCI格式是否包括第三DCI格式，终端设备都能够确定相应的候选时域资源集合。由于候选时域资源集合的确定过程中参考了第三DCI格式，也就不存在遗漏第三DCI格式对应的时域资源位置的情况，以保证码本能够包括所有可能的时域资源位置上的PDSCH的反馈信息，从而保证传输的可靠性。
第二方面，本申请实施例提供一种通信方法，该方法的执行主体可以是网络设备，也可以是应用于网络设备中的芯片。下面以执行主体是网络设备为例进行描述。该方法包括：网络设备确定候选时域资源集合之后，网络设备根据候选时域资源集合，确定待接收的来自终端设备的码本的比特数量。其中，码本中包括一个或多个物理下行共享信道PDSCH的反馈信息，一个或多个PDSCH通过候选时域资源集合所指示的时域资源位置传输。
在一种可能的设计中，网络设备确定候选时域资源集合之前，本申请实施例通信方法还包括：网络设备向终端设备发送指示信息。网络设备确定候选时域资源集合，包括：网络设备根据指示信息确定候选时域资源集合。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。网络设备根据指示信息确定候选时域资源集合，包括：指示信息不包括第二时域资源集合的配置信息，但包括第三时域资源集合的配置信息，网络设备确定候选时域资源集合为第一时域资源集合和第二时域资源集合的并集。或者，指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，网络设备确定候选时域资源集合为第一时域资源集合、第二时域资源集合和第三时域资源集合的并集。或者，第一指示信息包括第二时域资源集合的配置信息，但不包括第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合和第二时域资源集合的并集。或者，第一指示信息不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合。
在一种可能的设计中，指示信息为一个或多个DCI。网络设备根据指示信息确定候选 时域资源集合，包括：网络设备根据一个或多个DCI的DCI格式，确定候选时域资源集合。
在一种可能的设计中，指示信息用于指示一个或多个DCI的DCI格式。网络设备根据指示信息确定候选时域资源集合，包括：网络设备根据一个或多个DCI的DCI格式，确定候选时域资源集合。
在一种可能的设计中，网络设备根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式均为第一DCI格式，则网络设备确定候选时域资源集合为第一DCI格式对应的时域资源集合。或者，多个DCI的DCI格式为第二DCI格式，第二DCI格式为多个，网络设备确定候选时域资源集合为第二DCI格式对应的多个时域资源集合的并集。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。网络设备根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式包括第三DCI格式，但不包括第四DCI格式，网络设备确定候选时域资源集合为第三DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式不包括第三DCI格式，但包括第四DCI格式，网络设备确定候选时域资源集合为第四DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，多个DCI的DCI格式包括第三DCI格式和第四DCI格式，网络设备确定候选时域资源集合为第三DCI格式对应的时域资源集合，第四DCI格式对应的时域资源集合，和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，网络设备确定候选时域资源集合为第一时域资源集合。
第三方面，本申请实施例提供一种通信装置，该通信装置包括：用于执行上述任一方面中各个步骤的单元。该通信装置可以为上述第一方面中的终端设备，或者包含上述终端设备的装置；或者，该通信装置可以为上述第二方面中的网络设备，或者包含上述网络设备的装置。
第四方面，本申请实施例提供一种通信装置，包括处理器和接口电路，处理器用于通过接口电路与其它装置通信，并执行以上任一方面提供的通信方法。该处理器包括一个或多个。该通信装置可以为上述第一方面中的终端设备，或者包含上述终端设备的装置；或者，该通信装置可以为上述第二方面中的网络设备，或者包含上述网络设备的装置。
第五方面，本申请实施例提供一种通信装置，包括处理器，用于与存储器相连，用于调用存储器中存储的程序，以执行任一方面提供的通信方法。该存储器可以位于该通信装置之内，也可以位于该通信装置之外。且该处理器包括一个或多个。该通信装置可以为上述第一方面中的终端设备，或者包含上述终端设备的装置；或者，该通信装置可以为上述第二方面中的网络设备，或者包含上述网络设备的装置。
第六方面，本申请实施例提供一种通信装置，包括至少一个处理器和至少一个存储器，所述至少一个处理器用于执行以上任一方面提供的通信方法。该通信装置可以为上述第一方面中的终端设备，或者包含上述终端设备的装置；或者，该通信装置可以为上述第二方面中的网络设备，或者包含上述网络设备的装置。
第七方面，本申请实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述任一方面中任一项的通信方法。
第八方面，本申请实施例提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行上述任一方面中任一项的通信方法。
第九方面，本申请实施例提供一种电路系统，电路系统包括处理电路，处理电路被配置为执行如上述任一方面中任一项的通信方法。
第十方面，本申请实施例提供一种芯片，芯片包括处理器，处理器和存储器耦合，存储器存储有程序指令，当存储器存储的程序指令被处理器执行时实现上述任一方面任意一项的通信方法。
第十一方面，本申请实施例提供一种通信系统，该通信系统包括上述各个方面中任一方面中的终端设备和任一方面中的网络设备。
其中，第二方面至第十一方面中任一种设计方式所带来的技术效果可参见第一方面中不同设计方式所带来的技术效果，此处不再赘述。
附图说明
图1为相关技术提供的一种反馈信息的位置示意图；
图2为相关技术提供的又一种反馈信息的位置示意图；
图3为相关技术提供的一种候选时域资源集合中的时域资源位置示意图；
图4为本申请实施例提供的一种通信网络架构的示意图；
图5为本申请实施例提供的一种通信方法的流程示意图；
图6为本申请实施例提供的又一种通信方法的流程示意图；
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硬件结构示意图；
图9为本申请实施例提供的又一种通信装置的结构示意图；
图10为本申请实施例提供的又一种通信装置的结构示意图；
图11为本申请实施例提供的又一种通信装置的结构示意图；
图12为本申请实施例提供的又一种通信装置的结构示意图。
具体实施方式
本申请的说明书以及附图中的术语“第一”和“第二”等是用于区别不同的对象，或者用于区别对同一对象的不同处理，而不是用于描述对象的特定顺序。此外，本申请的描述中所提到的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括其他没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。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。
首先，介绍相关技术中所涉及的技术术语：
1、回退(fallback)下行控制信息(downlink control information，DCI)的格式：
该DCI的格式可以适用于无线资源控制(radio resource control，RRC)连接建立之前，还可以适用于RRC重配过程中的数据调度，又可以适用于RRC连接建立之后的数据调度。其中，上行的回退DCI的格式为DCI格式0_0,即用于调度上行数据的回退DCI格式， 还可以记为DCI format 0_0；下行的回退DCI的格式为DCI格式1_0,即用于调度下行数据的回退DCI格式，还可以记为DCI format 1_0。
另外，DCI格式1_0在调度下行数据时，需要指示下行数据的时域资源位置，具体通过指示DCI格式1_0对应的时域资源表格中的一行的配置信息来指示该调度下行数据的时域资源位置。其中，DCI格式1_0对应的时域资源表格的确定方式如下：
如果DCI格式1_0的DCI采用系统消息无线网络临时标识(system information radio network temporary identifier，SI-RNTI)、随机接入无线网络临时标识(random access radio network temporary identifier，RA-RNTI)、临时小区无线网络临时标识(temp cell radio network tempory identifier，TC-RNTI)、寻呼无线网络临时标识(paging radio network tempory identifier，P-RNTI)加扰，或者，DCI格式1_0的DCI在控制资源集(control-resource set，CORESET)0中接收且采用小区无线网络临时标识(cell radio network tempory identifier，C-RNTI)、调制和编码方案小区无线网络临时标识(modulation and coding scheme cell radio network tempory identifier，MCS-C-RNTI)、CS-RNTI加扰，则DCI格式1_0对应的时域资源表格为PDSCH的公共配置(PDSCH-configcommon)信令配置的时域资源分配表(time domain allocation list)。如果PDSCH的公共配置信令没有配置时域资源分配表(time domain allocation list)，则DCI格式1_0对应的时域资源表格为协议预定义的时域资源分配表。
如果DCI格式1_0的DCI在终端特定的搜索空间(UE-specific search space，USS)接收，或者，DCI格式1_0的DCI不在CORESET0接收，则DCI格式1_0对应的时域资源表格为PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)。
如果PDSCH的配置信令(PDSCH-config)未配置用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)，则DCI格式1_0对应的时域资源表格为PDSCH的公共配置信令(PDSCH-configcommon)配置的时域资源分配表(time domain allocation list)。如果PDSCH的公共配置信令(PDSCH-configcommon)未配置时域资源分配表(time domain allocation list)，则DCI格式1_0对应的时域资源表格为协议预定义的时域资源分配表。
在本申请实施例中，将PDSCH的公共配置信令(PDSCH-configcommon)配置的时域资源分配表(time domain allocation list)或协议预定义的时域资源分配表，记为时域资源表格0。时域资源表格0中的每一行的配置信息用于指示时域资源的起始符号、符号长度和时域资源的映射类型等。时域资源表格0所指示的所有的时域资源描述为第一时域资源集合。
2、常规(normal)DCI的格式：
该DCI的格式是新空口(new radio，NR)发行版15(release 15，R15)中引入的一个用于数据调度的DCI格式。其中，上行的常规DCI的格式为DCI格式0_1,即用于调度上行数据的常规DCI格式，还可以记为DCI format 0_1；下行的常规DCI的格式为DCI格式1_1即用于调度下行数据的常规DCI格式，还可以记为DCI format 1_1。
另外，DCI格式1_1在调度下行数据时，需要指示下行数据的时域资源位置，具体通过指示DCI格式1_1对应的时域资源表格中的一行的配置信息来指示该调度下行数据的时 域资源位置。其中，DCI格式1_1对应的时域资源表格的确定方式如下：
如果PDSCH的配置信令(PDSCH-config)配置了用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)，则DCI格式1_1对应的时域资源表格为PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)。
如果PDSCH的配置信令(PDSCH-config)未配置用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)，则DCI格式1_1对应的时域资源表格为PDSCH的公共配置信令(PDSCH-configcommon)配置的时域资源分配表(time domain allocation list)。如果PDSCH的公共配置信令(PDSCH-configcommon)未配置时域资源分配表(time domain allocation list)，则DCI格式1_1对应的时域资源表格为协议预定义的时域资源分配表。
在本申请实施例中，将PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)，记为时域资源表格1。时域资源表格1中的每一行的配置信息用于指示时域资源的起始符号、符号长度和时域资源的映射类型等。时域资源表格1所指示的所有的时域资源描述为第二时域资源集合。
3、压缩(compact)DCI的格式：
该DCI的格式是NR R16中新引入的一个用于调度数据的DCI格式。该格式的DCI的比特数可以很少，且比特数配置灵活，更加适用于高可靠性业务。其中，上行的压缩DCI的格式为DCI格式0_2，用于调度上行数据的压缩DCI格式，还可以记为DCI format 0_2；下行的压缩DCI的格式为DCI格式1_2，用于调度下行数据的常规DCI格式，还可以记为DCI format 1_2。
另外，DCI格式1_2在调度下行数据时，需要指示下行数据的时域资源位置，具体通过指示DCI格式1_2对应的时域资源表格中的一行的配置信息来指示该调度下行数据的时域资源位置。其中，DCI格式1_2对应的时域资源表格的确定方式如下：
如果PDSCH的配置信令(PDSCH-config)配置了用于DCI格式1_2的时域资源分配表(PDSCH-time domain allocation list-for DCI format 1_2)，则DCI格式1_2对应的时域资源表格为PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_2的时域资源分配表(PDSCH-time domain allocation list-for DCI format 1_2)。
如果PDSCH的配置信令(PDSCH-config)未配置用于DCI格式1_2的时域资源分配表(PDSCH-time domain allocation list-for DCI format 1_2)，则DCI格式1_2对应的时域资源表格为PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)；如果PDSCH的配置信令(PDSCH-config)未配置用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)，则DCI格式1_2对应的时域资源表格为PDSCH的公共配置信令(PDSCH-configcommon)配置的时域资源分配表(time domain allocation list)。如果PDSCH的公共配置信令(PDSCH-configcommon)未配置时域资源分配表(time domain allocation list)，则DCI格式1_2对应的时域资源表格为协议预定义的表格。
在本申请实施例中，将PDSCH的配置信令(PDSCH-config)配置的用于DCI格式1_2 的时域资源分配表(PDSCH-time domain allocation list-for DCI format 1_2)，记为时域资源表格2。时域资源表格2中的每一行的配置信息用于指示时域资源的起始符号、符号长度和时域资源的映射类型等。时域资源表格2所指示的所有的时域资源描述为第三时域资源集合。
4、自动重传请求(hybrid automatic repeat request，HARQ)-确认应答(acknowledgement，ACK)码本：
在终端设备接收物理下行共享信道(physical downlink shared channel，PDSCH)中承载的下行数据之后，向网络设备反馈HARQ响应消息。其中，每条HARQ响应消息对应一组比特位的取值，以表征终端设备在相应候选PDSCH的接收时机上的PDSCH接收状况。在一个时间单元内，不同PDSCH的HARQ响应消息构成的连续的比特，即称为HARQ-ACK码本。其中，时间单元可以是时隙，也可以是迷你时隙(mini-slot)，还可以是子时隙(sub-slot)。
5、半静态码本模式：
在半静态码本模式下，HARQ-ACK码本的大小(size)是半静态的。也就是说，在一定的时间段内，如RRC信令未配置HARQ-ACK码本的大小时，HARQ-ACK码本的大小维持不变。如此，HARQ-ACK码本的可靠性较高。
6、高层信令
高层信令是指高层协议层发出的信令。其中，高层协议层为物理层以上的至少一个协议层。高层协议层包括以下协议层中的至少一个：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)层和非接入层(non access stratum，NAS)。
7、时隙(slot)
时隙是数据调度的一种时域单位。在正常循环前缀下，一个时隙包括14个符号。在扩展循环前缀下，一个时隙包括12个符号。在第五代(fifth-generation，5G)NR中，时间单元可以有多种，例如，时间单元可以是帧，子帧，时隙或符号。这里，符号可以是正交频分复用(orthogonal frequency division multiplexing，OFDM)符号。一个帧的时间长度为10ms，包括10个子帧，每个子帧对应的时间长度为1ms。在不同子载波间隔配置下，每个子帧中包括的时隙数不同。
下面，介绍相关技术中半静态码本模式下的HARQ-ACK码本生成过程：
步骤一、网络设备向终端设备发送DCI。相应的，终端设备接收来自网络设备的DCI。
其中，DCI的格式包括如下格式中的至少一种：DCI格式1_0、DCI格式1_1或DCI格式1_2。
其中，DCI包括时域资源指示信息。DCI中的时域资源指示信息承载于DCI的一个比特域。DCI中的时域资源指示信息可以是行索引，用于索引目标时域资源分配表中的某一行。这里，目标时域资源分配表是根据DCI的DCI格式所确定的。DCI格式1_0对应的目标时域资源分配表的确定方式可以参见“DCI格式1_0对应的时域资源表格的确定方式”的相关说明，DCI格式1_1对应的目标时域资源分配表的确定方式可以参见“DCI格式1_1对应的时域资源表格的确定方式”的相关说明，DCI格式1_2对应的目标时域资源分配表 的确定方式可以参见“DCI格式1_2对应的时域资源表格的确定方式”的相关说明，此处不再赘述。
其中，DCI包括K1指示信息。K1指示信息用于指示接收PDSCH的时间单元与反馈HARQ响应消息的时间单元之间的对应关系。K1的取值是K1集合中的某一个数值。例如，K1集合为{1，2，3，4，5，6，7，8}，DCI中三个比特为“011”，则K1的取值为4。此时，若终端设备在第n个时间单元接收PDSCH，则终端设备在第(n+K1)个时间单元向终端设备反馈HARQ响应消息，具体如图1所示。其中，n为大于或等于1的正整数。这里，时间单元可以为时隙，也可以为迷你时隙，还可以为子时隙。
步骤二、终端设备根据DCI中的时域资源指示信息，确定PDSCH的时域资源位置。
示例性的，终端设备确定该DCI的DCI格式对应的时域资源分配表，根据该DCI中的时域资源指示信息，索引到该DCI的DCI格式对应的时域资源分配表中的相应行，将该DCI的DCI格式对应的时域资源分配表中的相应行所指示的时域资源位置，作为PDSCH的时域资源位置。
步骤三、网络设备在PDSCH的时域资源位置上，向终端设备发送PDSCH。相应的，终端设备在PDSCH的时域资源位置上，接收来自网络设备的PDSCH。
步骤四、终端设备根据DCI中的K1指示信息和PDSCH的时域资源位置，确定反馈HARQ响应消息的时域资源位置。
其中，HARQ响应消息是根据PDSCH中承载的下行数据的译码结果确定的。具体地，若下行数据接收成功，则HARQ响应信息为确认应答(acknowledgement，ACK)；若下行数据接收失败，则HARQ响应信息为否认应答(negative acknowledgement，NACK)。
在半静态码本模式下，终端设备将多个HARQ响应消息生成一个HARQ-ACK码本。以第i个时隙的HARQ-ACK码本生成过程为例进行说明：
在K1集合为{0,1,2,3,4}的情况下，第(i-4)个时隙、第(i-3)个时隙、第(i-2)个时隙、第(i-1)个时隙和第i个时隙传输的下行数据都可能在第i个时隙反馈HARQ响应消息，如图2所示。如果第(i-4)个时隙、第(i-3)个时隙、第(i-2)个时隙、第(i-1)个时隙和第i个时隙中收到一个DCI指示在第i个时隙中反馈HARQ响应消息，则第(i-4)个时隙、第(i-3)个时隙、第(i-2)个时隙、第(i-1)个时隙和第i个时隙对应的HARQ响应消息均需在第i个时隙反馈。
这里，终端设备确定每个时隙待反馈的比特数量的具体过程包括如下步骤五和步骤六：
步骤五、终端设备确定候选时域资源集合。
具体地，在PDSCH的配置信令(PDSCH-config)未配置用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)的情况下，候选时域资源集合为第一时域资源集合。在PDSCH的配置信令(PDSCH-config)配置了用于DCI格式1_0和/或DCI格式1_1的时域资源分配表(PDSCH-time domain allocation list)的情况下，候选时域资源集合为第一时域资源集合和第二时域资源集合的并集。这里，取并集处理之后，若第一时域资源集合和第二时域资源集合包括相同的时域资源位置，则候选时域资源集合中有且仅有一个上述相同的时域资源位置。
步骤六、终端设备根据候选时域资源集合，确定HARQ-ACK码本。
具体的，首先在候选时域资源集合中从起始符号最靠前的候选的时域资源位置开始， 判断是否有其他的候选的时域资源位置与其重叠：如果有，则所有与最靠前的候选的时域资源位置重叠的候选的时域资源位置都归为第一个候选PDSCH接收时机。然后，在候选时域资源集合中剩余的候选的时域资源位置中，按照上述过程，确定第二个候选PDSCH接收时机，如此往复，直到不存在剩余的候选的时域资源位置。在每个候选PDSCH接收时机对应预设数量的比特的情况下，也就能够确定该时隙对应的HARQ-ACK码本的比特数量。并且，HARQ-ACK码本中的比特顺序按照候选PDSCH接收时机的顺序排列。
示例性的，候选时域资源集合包括四个候选的时域资源位置，分别为符号1至符号3、符号2至符号5、符号5至符号9、符号11至符号13，具体如图3中斜线填充的方格所示。首先，第一个候选的时域资源位置(即符号1至符号3)与第二个候选的时域资源位置(即符号2至符号5)重叠，所以，第一个候选的时域资源位置与第二个候选的时域资源位置对应第一个候选PDSCH接收时机。然后，剩余的候选的时域资源位置为第三个候选的时域资源位置(即符号5至符号9)和第四个候选的时域资源位置(即符号11至符号13)，两者并未重叠。所以，第三个候选的时域资源位置对应第二个候选PDSCH接收时机，第四个候选的时域资源位置对应第三个候选PDSCH接收时机。若每个候选PDSCH接收时机对应一个比特，则该时隙的HARQ响应消息即为HARQ-ACK码本中的三个比特的反馈信息。
终端设备重复上述步骤五和步骤六，即可确定出第(i-4)个时隙、第(i-3)个时隙、第(i-2)个时隙、第(i-1)个时隙和第i个时隙中每个时隙在第i个时隙反馈的HARQ-ACK码本的比特数量，以及每个时域资源位置对应HARQ-ACK码本中的哪个比特。
然而，目前DCI的格式有三种，三种DCI格式对应的时域资源分配表可能完全不同。例如，DCI格式1_0对应的时域资源表格为时域资源表格0，DCI格式1_1对应的时域资源表格为时域资源表格1，DCI格式1_2的时域资源表格为时域资源表格2。而半静态码本的确定过程中，候选时域资源集合可以是第一时域资源集合(即时域资源表格0所指示的时域资源)，也可以是第一时域资源集合和第二时域资源集合(即时域资源表格1所指示的时域资源)的并集。也就是说，在确定候选时域资源集合时，并未参考第三时域资源集合(即时域资源表格2所指示的时域资源)，候选时域资源集合也就不包括第三时域资源集合(即时域资源表格2所指示的时域资源)，进而终端设备确定的HARQ-ACK码本中也就不包括时域资源表格2所指示的时域资源位置上接收的PDSCH的反馈位置，造成DCI格式1_2调度的下行数据没有反馈位置，在通过相应的时域资源位置传输数据的情况下，由于网络设备无法接收相应的HARQ响应消息，影响数据传输的可靠性。或者，因为网络设备未接收到该时域资源上调度的下行数据的反馈信息，网络设备也就无法在相应的时域资源位置上传输数据，降低数据调度的灵活性，浪费传输资源。
鉴于此，本申请实施例提供一种通信方法，本申请实施例通信方法适用于各种通信系统。本申请实施例提供的通信方法可以应用于长期演进(long term evolution，LTE)系统，或者第五代(fifth-generation，5G)通信网络，或者其他类似的网络中，或者未来的其它网络中。图4为可适用于本申请实施例通信方法的通信系统的架构示意图，该通信系统可以包括终端设备40和网络设备41。其中，终端设备40与网络设备41之间无线连接。其中，终端设备40可以为一个或多个，网络设备41也可以为一个或多个。图4中仅示出了一个网络设备和两个终端设备。图4仅为示意图，并不构成对本申请实施例通信方法的适用场景的限定。
终端设备40，又称为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备或车载设备等。终端设备具体可以为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、或智慧家庭(smart home)中的无线终端，未来5G通信网络或5G之后的通信网络中的终端设备等，本申请实施例对此不作限定。
网络设备41是无线通信网络中的设备，例如将终端设备40接入到无线通信网络的无线接入网(radio access network，RAN)节点。目前，一些RAN节点的举例为：gNB、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，WiFi)接入点(access point，AP)，或未来5G通信网络或5G之后的通信网络中的网络侧设备等。
本申请实施例描述的通信系统以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定。本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面对本申请实施例提供的通信方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，在此统一说明，以下不再赘述。
本申请实施例提供一种通信方法，该通信方法应用在半静态码本的生成过程中。参见图5，该通信方法包括如下步骤：
S501、终端设备确定候选时域资源集合。
其中，候选时域资源集合包括如下三个时域资源集合中的至少一个：第一时域资源集合、第二时域资源集合或第三时域资源集合。在候选时域资源集合包括一个时域资源集合的情况下，候选时域资源集合为相应的时域资源集合。在候选时域资源集合包括多个时域资源集合的情况下，候选时域资源集合为多个时域资源集合的并集。
S502、网络设备确定候选时域资源集合。
这里，S502的具体实现方式可以参见S501的相关说明，即由网络设备执行相关处理过程，此处不再赘述。由于网络设备和终端设备采用相同的处理过程来确定候选时域资源集合，也就能够保证网络设备和终端设备确定的候选时域资源集合是相同的。
S503、网络设备在候选时域资源集合所指示的时域资源位置上，向终端设备传输PDSCH。相应的，终端设备在候选时域资源集合所指示的时域资源位置上，接收来自网络设备的PDSCH。
其中，PDSCH的数量可以是一个，也可以是多个。
S504、终端设备根据候选时域资源集合，确定向网络设备反馈的码本。
其中，码本中包括上述一个或多个PDSCH的反馈信息。码本为HARQ-ACK码本。
这里，S504的具体实现过程可以参见步骤六的相关说明，此处不再赘述。
S505、网络设备根据候选时域资源集合，确定待接收的码本的比特数量。
这里，码本仍为HARQ-ACK码本。S505的具体实现过程可以参见步骤六的相关说明，此处不再赘述。由于网络设备和终端设备确定的候选时域资源集合是相同的，再同样采用步骤六的处理过程的情况下，网络设备所确定的码本的比特数量与终端设备所确定的码本的比特数量一致，以便于网络设备确定接收码本时所采用的传输资源的大小，提高传输资源利用率。由于网络设备仅能够确定码本的比特数量，仍未获知码本中相应比特的取值状况，即网络设备未获知一个或多个PDSCH的反馈信息。为了使得网络设备获取一个或多个PDSCH的反馈信息，终端设备执行S506：
S506、终端设备向网络设备发送码本。相应的，网络设备接收来自终端设备的码本。
需要说明的是，终端设备可以先执行S503，再执行S504，也可以先执行S504，再执行S503，还可以同时执行S503和S504。本申请实施例对S503和S504的执行顺序不作限定。终端设备可以先执行S503，再执行S505，也可以先执行S505，再执行S503，还可以同时执行S503和S505。本申请实施例对S503和S505的执行顺序不作限定。
本申请实施例提供的通信方法，终端设备确定的候选时域资源集合能够包括新增的时域资源集合，即第三时域资源集合。也就是说，候选时域资源集合能够包括所有可能的时域资源集合。在候选时域资源集合包括第三时域资源集合的情况下，码本中也就能够包括第三时域资源集合所指示的时域资源位置上的PDSCH的反馈信息。在候选时域资源集合不包括第三时域资源集合的情况下，第三时域资源集合所指示的时域资源位置上未传输PDSCH。相应的，码本中不包括第三时域资源集合所指示的时域资源位置上的PDSCH的反馈信息。如此，即可保证码本中包括所有可能的时域资源位置对应的反馈信息，以提高数据传输可靠性。在码本中包括所有可能的时域资源位置对应的反馈信息的情况下，所有可能的时域资源位置也就均能够传输数据，以提高数据调度灵活性和资源利用率。
在一些实施例中，终端设备根据接收的第一指示信息来确定候选时域资源集合。参见图6，本申请实施例提供的通信方法还包括S500：
S500、网络设备向终端设备发送第一指示信息。相应的，终端设备接收来自网络设备的第一指示信息。
其中，第一指示信息的具体实现可以有多种：第一指示信息可以是PDSCH的配置信令(PDSCH-config)，即第一指示信息可以包括第二时域资源集合的配置信息和/或第三时域资源集合的配置信息，第一指示信息也可以不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息；第一指示信息还可以是一个或多个DCI；第一指示信息也可以是一个或多个DCI的DCI格式。
S501可以具体实现为S5010：
S5010、终端设备根据第一指示信息确定候选时域资源集合。
这里，第一指示信息的具体实现方式有多种。相应的，终端设备根据第一指示信息确定的候选时域资源集合的方式也不一样，可以例如但不限于如下四种方式：
方式一、第一指示信息为PDSCH的配置信令(PDSCH-config)。
示例性的，该第一指示信息中可以包括第二时域资源集合的配置信息和/或第三时域资源集合的配置信息，第一指示信息也可以不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息；具体包括如下四种情况，在不同的情况下，终端设备确定的候选时域资源集合如下：
情况一、第一指示信息包括第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合和第三时域资源集合的并集。也就是说，第一指示信息不包括第二时域资源集合的配置信息。
情况二、第一指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合、第二时域资源集合和第三时域资源集合的并集。
情况三、第一指示信息包括第二时域资源集合的配置信息，但不包括第三时域资源集合的配置信息，终端设备确定候选时域资源集合为第一时域资源集合和第二时域资源集合的并集。
情况四、终端设备确定候选时域资源集合为第一时域资源集合。也就是说，第一指示信息不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息。
需要说明的是，第一时域资源集合为时域资源表格0所指示的时域资源。时域资源表格0为PDSCH的公共配置信令(PDSCH-configcommon)配置的时域资源分配表(time domain allocation list)，或者时域资源表格0为协议预定义的时域资源分配表。此种情况下，终端设备确定时域资源分配表0始终存在，即第一时域资源集合始终存在。
在情况一和情况二中，若第一指示信息包括第三时域资源的配置信息，则候选时域资源集合包括第三时域资源集合的时域资源。在情况三和情况四中，终端设备在确定候选时域资源集合时参考了第三时域资源集合，若第一指示信息不包括第三时域资源集合的配置信息，则候选时域资源集合不包括第三时域资源集合的时域资源，终端设备无需传输第三时域资源集合所指示的时域资源位置上的PDSCH的反馈信息。而现有技术中候选时域资源集合可能也不包括第三时域资源集合的时域资源，但现有技术中是由于确定候选时域资源集合时未参考第三时域资源集合，而不是本申请实施例中第一指示信息不包括第三时域资源的配置信息。如此，在终端设备确定候选时域资源集合时参考第三时域资源集合的配置状况的情况下，即使候选时域资源集合不包括第三时域资源集合，也不存在遗漏可能的时域资源位置的情况，以保证码本能够包括所有可能的时域资源位置上的PDSCH的反馈信息，保证传输的可靠性，提高资源的利用率。
方式二、第一指示信息为一个或多个DCI。
示例性的，S5010具体实现为：终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合。
其中，一个或多个DCI的DCI格式可以相同，也可以不同。DCI格式可以是如下三种格式中的至少一种格式：DCI格式1_0的DCI、DCI格式1_1的DCI或DCI格式1_2的DCI。
这里，终端设备先确定一个或多个DCI的DCI格式，再确定相应DCI格式对应的时域资源集合，具体可以参见“DCI格式1_1对应的时域资源表格的确定方式”、“DCI格式1_1对应的时域资源表格的确定方式”、“DCI格式1_1对应的时域资源表格的确定方式”的相 关说明，此处不再赘述。在确定相应DCI格式对应的时域资源集合之后，终端设备才能够确定候选时域资源集合，具体可以例如但不限于如下两种示例：
示例一、一个或多个DCI的DCI格式均为第一DCI格式，则终端设备确定候选时域资源集合为第一DCI格式对应的时域资源集合；或者，多个DCI的DCI格式为第二DCI格式，第二DCI格式为多个，终端设备确定候选时域资源集合为第二DCI格式对应的多个时域资源集合的并集。
其中，第一DCI格式是任意一种DCI格式，如第一DCI格式为DCI格式1_0，或者，第一DCI格式为DCI格式1_1，或者，第一DCI格式为DCI格式1_2。
第二DCI格式是多个DCI格式，如第二DCI格式为DCI格式1_0和DCI格式1_1，或者，第二DCI格式为DCI格式1_0和DCI格式1_2，或者，第二DCI格式为DCI格式1_1和DCI格式1_2，或者，第二DCI格式为DCI格式1_0、DCI格式1_1和DCI格式1_2。
如此，无论DCI格式是一个还是多个，终端设备都能够根据相应的DCI格式确定候选时域资源集合。由于候选时域资源集合能够包括相应DCI格式对应的时域资源集合，也就不存在遗漏某一DCI格式对应的时域资源位置的情况，以保证码本能够包括所有可能的时域资源位置上的PDSCH的反馈信息，从而保证可靠性，提高资源利用率。并且，候选时域资源集合能够包括相应DCI格式对应的时域资源集合，并非包括所有的时域资源集合，也相应降低了码本的比特数量，降低传输资源开销，从而进一步保证了传输的可靠性。
示例二、一个或多个DCI的DCI格式包括第三DCI格式。也就是说，所述一个或多个DCI的DCI格式不包括第四DCI格式。终端设备确定候选时域资源集合为第三DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式包括第四DCI格式。也就是说，所述一个或多个DCI的DCI格式不包括第三DCI格式。终端设备确定候选时域资源集合为第四DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，多个DCI的DCI格式包括第三DCI格式和第四DCI格式，终端设备确定候选时域资源集合为第三DCI格式对应的时域资源集合，第四DCI格式对应的时域资源集合，和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，终端设备确定候选时域资源集合为第一时域资源集合。
其中，第三DCI格式为DCI格式1_2，第四DCI格式为DCI格式1_1。
如此，无论DCI格式是否包括第三DCI格式，终端设备都能够确定相应的候选时域资源集合。由于候选时域资源集合的确定过程中参考了第三DCI格式，也就不存在遗漏第三DCI格式对应的时域资源位置的情况，以保证码本能够包括所有可能的时域资源位置上的PDSCH的反馈信息，从而保证传输的可靠性。
方式三、第一指示信息用于指示一个或多个DCI的DCI格式。
示例性的，S5010具体实现为：终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合。
其中，一个或多个DCI的DCI格式可以相同，也可以不同。DCI格式可以是如下三种格式中的至少一种格式：DCI格式1_0、DCI格式1_1或DCI格式1_2。
其中，第一指示信息可以承载在高层信令中，用于指示终端设备需要接收哪些DCI格式。
这里，“终端设备根据一个或多个DCI的DCI格式，确定候选时域资源集合”可以参 见方式二中的相关说明，此处不再赘述。
如此，在第一指示信息指示一个或多个DCI的DCI格式的情况下，由于第一指示信息能够指示DCI格式，终端设备根据不同的DCI格式来确定候选时域资源集合，候选时域资源集合也就能够包括相应DCI格式的时域资源集合，不存在遗漏某一DCI格式对应的时域资源位置的情况，以保证码本能够包括所有可能的时域资源位置上的PDSCH的反馈信息，从而保证传输的可靠性。
另外，在一些实施例中，终端设备还需要接收第二指示信息，该第二指示信息用于指示生成码本的模式为半静态码本模式。终端设备采用半静态码本模式，生成HARQ-ACK码本。相应的，网络设备采用半静态码本模式，确定HARQ-ACK码本的比特数量。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的，本申请实施例还提供了通信装置，该通信装置可以为上述方法实施例中的网元，或者包含上述网元的装置，或者为可用于网元的部件。可以理解的是，该通信装置为了实现上述功能，其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单元及算法步骤，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。
图7示出了一种通信装置700的结构示意图。该通信装置700包括收发模块701和处理模块702。
比如，以通信装置700为上述方法实施例中图5的终端设备为例，
则处理模块702用于确定候选时域资源集合。处理模块702还用于根据候选时域资源集合，确定向网络设备反馈的码本。其中，码本中包括一个或多个物理下行共享信道PDSCH的反馈信息，一个或多个PDSCH通过候选时域资源集合所指示的时域资源位置传输。收发模块701用于向网络设备发送码本。
在一种可能的设计中，收发模块701还用于接收来自网络设备的指示信息。处理模块702用于确定候选时域资源集合，包括：用于根据指示信息确定候选时域资源集合。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。处理模块702用于根据指示信息确定候选时域资源集合，包括：指示信息不包括第二时域资源集合的配置信息，但包括第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合和第三时域资源集合的并集。或者，指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合、第二时域资源集合和第三时域资源集合的并集。或者，指示信息不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合。或者，指示信息包括第二时域资源集合的配置信息，但不包括第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合和第三时域资源集合的并集。
在一种可能的设计中，指示信息为一个或多个DCI。处理模块702用于根据指示信息确定候选时域资源集合，包括：用于根据一个或多个DCI的DCI格式，确定候选时域资源集合。
在一种可能的设计中，指示信息用于指示一个或多个DCI的DCI格式。处理模块702用于根据指示信息确定候选时域资源集合，包括：用于根据一个或多个DCI的DCI格式，确定候选时域资源集合。
在一种可能的设计中，处理模块702用于根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式均为第一DCI格式，则处理模块702用于确定候选时域资源集合为第一DCI格式对应的时域资源集合。或者，多个DCI的DCI格式为第二DCI格式，第二DCI格式为多个，处理模块702用于确定候选时域资源集合为第二DCI格式对应的多个时域资源集合的并集。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。处理模块702用于根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式包括第三DCI格式，但不包括第四DCI格式，处理模块702用于确定候选时域资源集合为第三DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式不包括第三DCI格式，但包括第四DCI格式，处理模块702用于确定候选时域资源集合为第四DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，多个DCI的DCI格式包括第三DCI格式和第四DCI格式，处理模块702用于确定候选时域资源集合为第三DCI格式对应的时域资源集合，第四DCI格式对应的时域资源集合，和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，处理模块702用于确定候选时域资源集合为第一时域资源集合。
比如，以通信装置700为上述方法实施例中图5的网络设备为例，
则处理模块702用于确定候选时域资源集合。处理模块702还用于根据候选时域资源集合，确定待接收的来自终端设备的码本的比特数量。其中，码本中包括一个或多个物理下行共享信道PDSCH的反馈信息，一个或多个PDSCH通过候选时域资源集合所指示的时域资源位置传输。收发模块701用于接收来自终端设备的码本。
在一种可能的设计中，收发模块701还用于向终端设备发送指示信息。处理模块702用于确定候选时域资源集合，包括：用于根据指示信息确定候选时域资源集合。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。处理模块702用于根据指示信息确定候选时域资源集合，包括：指示信息不包括第二时域资源集合的配置信息，但包括第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合和第三时域资源集合的并集。或者，指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合、第二时域资源集合和第三时域资源集合的并集。或者，指示信息不包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合。或者，指示信息包括第二时域资源集合的配置信息，但不包括第三时域资源集合的配置信息，处理模块702用于确定候选时域资源集合为第一时域资源集合和第三时域资源集合的并集。
在一种可能的设计中，指示信息为一个或多个DCI。处理模块702用于根据指示信息确定候选时域资源集合，包括：用于根据一个或多个DCI的DCI格式，确定候选时域资源集合。
在一种可能的设计中，指示信息用于指示一个或多个DCI的DCI格式。处理模块702 用于根据指示信息确定候选时域资源集合，包括：用于根据一个或多个DCI的DCI格式，确定候选时域资源集合。
在一种可能的设计中，处理模块702用于根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式均为第一DCI格式，则处理模块702用于确定候选时域资源集合为第一DCI格式对应的时域资源集合。或者，多个DCI的DCI格式为第二DCI格式，第二DCI格式为多个，处理模块702用于确定候选时域资源集合为第二DCI格式对应的多个时域资源集合的并集。
在一种可能的设计中，第一时域资源集合为预设的时域资源集合。处理模块702用于根据一个或多个DCI的DCI格式，确定候选时域资源集合，包括：一个或多个DCI的DCI格式包括第三DCI格式，但不包括第四DCI格式，处理模块702用于确定候选时域资源集合为第三DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式不包括第三DCI格式，但包括第四DCI格式，处理模块702用于确定候选时域资源集合为第四DCI格式对应的时域资源集合和第一时域资源集合的并集。或者，多个DCI的DCI格式包括第三DCI格式和第四DCI格式，处理模块702用于确定候选时域资源集合为第三DCI格式对应的时域资源集合，第四DCI格式对应的时域资源集合，和第一时域资源集合的并集。或者，一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，处理模块702用于确定候选时域资源集合为第一时域资源集合。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
应理解，本申请实施例中的处理模块702可以由处理器或处理器相关电路组件实现，收发模块701可以由收发器或收发器相关电路组件实现。
如图8所示，本申请实施例还提供一种通信装置800，在该通信装置实现为终端设备时，该通信装置800包括处理器810，存储器820与收发器830。其中，存储器820中存储指令或程序，处理器810用于执行存储器820中存储的指令或程序。存储器820中存储的指令或程序被执行时，该处理器810用于执行上述实施例中处理模块702执行的操作，收发器830用于执行上述实施例中收发模块701执行的操作。
应理解，本申请实施例的通信装置700或通信装置800可对应于本申请实施例图5的通信方法中的终端设备，并且通信装置700或通信装置800中的各个模块的操作和/或功能分别为了实现图5中的各个方法的相应流程，为了简洁，在此不再赘述。
当该通信装置为终端设备时，图9示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图9中，终端设备以手机作为例子。如图9所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。 当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图9中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。如图9所示，终端设备包括收发单元910和处理单元920。收发单元910也可以称为收发器、收发机、收发装置等。处理单元920也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元910中用于实现接收功能的器件视为接收单元，将收发单元910中用于实现发送功能的器件视为发送单元，即收发单元910包括接收单元和发送单元。收发单元910有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元910用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元920用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
例如，在一种实现方式中，收发单元910用于执行图5中的S503中终端设备侧的收发操作，收发单元910还用于执行图5中的S506中终端设备侧的收发操作，和/或收发单元910还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元920，用于执行图5中的S501、S504，和/或处理单元920还用于执行本申请实施例中终端设备侧的其他处理步骤。
再例如，在另一种实现方式中，收发单元910用于执行图6中S500中终端设备侧的发送操作，和/或收发单元910还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元920用于执行本申请实施例中终端设备侧的其他处理步骤。
当该通信装置为芯片类的装置或者电路时，该装置可以包括收发单元和处理单元。其中，所述收发单元可以是输入输出电路和/或通信接口；处理单元为集成的处理器或者微处理器或者集成电路。
本申请实施例中的通信装置为终端设备时，可以参照图10所示的设备。作为一个例子，该设备可以完成类似于图8中处理器810的功能。在图10中，该设备包括处理器1010，发送数据处理器1020，接收数据处理器1030。上述实施例中的处理模块702可以是图10中的该处理器1010，并完成相应的功能。上述实施例中的收发模块701可以是图10中的发送数据处理器1020，和/或接收数据处理器1030。虽然图10中示出了信道编码器、信道解码器、符号生成模块、信道估计模块，但是可以理解这些模块并不对本申请实施例构成限制性说明，仅是示意性的。
图11示出本申请实施例的另一种形式。处理装置1100中包括调制子系统、中央处理子系统、周边子系统、多媒体子系统等模块。本申请实施例中的通信装置可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1103，接口1101。其中，处理器1103完成上述处理模块702的功能，接口1101完成上述收发模块701的功能。作为另一种变形，该调制子系统包括存储器1102、处理器1103及存储在存储器1102上并可在处理器上 运行的程序，该处理器1103执行该程序时实现上述方法实施例中终端设备侧的方法。需要注意的是，所述存储器1102可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置1100中，只要该存储器1102可以连接到所述处理器1103即可。
作为本申请实施例的另一种形式，提供一种计算机可读存储介质，其上存储有指令，该指令被执行时执行上述方法实施例中终端设备侧的方法。
作为本申请实施例的另一种形式，提供一种包含指令的计算机程序产品，该指令被执行时执行上述方法实施例中终端设备侧的方法。
本申请实施例中的通信装置为网络设备时，该网络设备可以如图12所示，通信装置1200包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)1210和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)1220。所述RRU 1210可以称为收发模块，与图7中的收发模块701对应，可选地，该收发模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线1211和射频单元1212。所述RRU1210部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送随机接入响应消息。所述BBU 1220部分主要用于进行基带处理，对基站进行控制等。所述RRU 1210与BBU 1220可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 1220为基站的控制中心，也可以称为处理模块，可以与图7中的处理模块702对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程，例如，生成上述随机接入响应消息等。
在一个示例中，所述BBU 1220可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述BBU 1220还包括存储器1221和处理器1222。所述存储器1221用以存储必要的指令和数据。所述处理器1222用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器1221和处理器1222可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
应理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically  EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)集成在处理器中。
应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，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。
应理解，在本申请的各种实施例中，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，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，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。
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，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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系统，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或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
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。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计 算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
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，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，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所述以权利要求的保护范围为准。

Claims (22)

  1. 一种通信方法，其特征在于，包括：
    终端设备确定候选时域资源集合；
    所述终端设备根据所述候选时域资源集合，确定向网络设备反馈的码本，所述码本中包括一个或多个物理下行共享信道PDSCH的反馈信息，所述一个或多个PDSCH通过所述候选时域资源集合所指示的时域资源位置传输。
  2. 根据权利要求1所述的通信方法，其特征在于，所述终端设备确定候选时域资源集合之前，所述方法还包括：
    所述终端设备接收来自所述网络设备的指示信息；
    所述终端设备确定候选时域资源集合，包括：
    所述终端设备根据所述指示信息确定所述候选时域资源集合。
  3. 根据权利要求2所述的通信方法，其特征在于，第一时域资源集合为预设的时域资源集合；所述终端设备根据所述指示信息确定所述候选时域资源集合，包括：
    所述指示信息不包括第二时域资源集合的配置信息，但包括第三时域资源集合的配置信息，所述终端设备确定所述候选时域资源集合为所述第一时域资源集合和所述第三时域资源集合的并集；
    或者，所述指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，所述终端设备确定所述候选时域资源集合为所述第一时域资源集合、所述第二时域资源集合和所述第三时域资源集合的并集。
  4. 根据权利要求2所述的通信方法，其特征在于，所述指示信息为一个或多个DCI；所述终端设备根据所述指示信息确定所述候选时域资源集合，包括：
    所述终端设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合。
  5. 根据权利要求2所述的通信方法，其特征在于，所述指示信息用于指示一个或多个DCI的DCI格式；所述终端设备根据所述指示信息确定所述候选时域资源集合，包括：
    所述终端设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合。
  6. 根据权利要求4或5所述的通信方法，其特征在于，所述终端设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合，包括：
    所述一个或多个DCI的DCI格式均为第一DCI格式，则所述终端设备确定所述候选时域资源集合为所述第一DCI格式对应的时域资源集合；
    或者，所述多个DCI的DCI格式为第二DCI格式，所述第二DCI格式为多个，所述终端设备确定所述候选时域资源集合为所述第二DCI格式对应的多个时域资源集合的并集。
  7. 根据权利要求4或5所述的通信方法，其特征在于，第一时域资源集合为预设的时域资源集合；所述终端设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合，包括：
    所述一个或多个DCI的DCI格式包括第三DCI格式，但不包括第四DCI格式，所述终端设备确定所述候选时域资源集合为所述第三DCI格式对应的时域资源集合和所述第一时域资源集合的并集；
    或者，所述一个或多个DCI的DCI格式不包括第三DCI格式，但包括第四DCI格式，所述终端设备确定所述候选时域资源集合为所述第四DCI格式对应的时域资源集合和所述 第一时域资源集合的并集；
    或者，所述多个DCI的DCI格式包括第三DCI格式和第四DCI格式，所述终端设备确定所述候选时域资源集合为所述第三DCI格式对应的时域资源集合，所述第四DCI格式对应的时域资源集合，和所述第一时域资源集合的并集；
    或者，所述一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，所述终端设备确定所述候选时域资源集合为所述第一时域资源集合。
  8. 一种通信方法，其特征在于，包括：
    网络设备确定候选时域资源集合；
    所述网络设备根据所述候选时域资源集合，确定待接收的来自终端设备的码本的比特数量，所述码本中包括一个或多个物理下行共享信道PDSCH的反馈信息，所述一个或多个PDSCH通过所述候选时域资源集合所指示的时域资源位置传输。
  9. 根据权利要求8所述的通信方法，其特征在于，所述网络设备确定候选时域资源集合之前，所述方法还包括：
    所述网络设备向所述终端设备发送指示信息；
    所述网络设备确定候选时域资源集合，包括：
    所述网络设备根据所述指示信息确定所述候选时域资源集合。
  10. 根据权利要求9所述的通信方法，其特征在于，第一时域资源集合为预设的时域资源集合；所述网络设备根据所述指示信息确定所述候选时域资源集合，包括：
    所述指示信息不包括第二时域资源集合的配置信息，但包括第三时域资源集合的配置信息，所述网络设备确定所述候选时域资源集合为所述第一时域资源集合和所述第二时域资源集合的并集；
    或者，所述指示信息包括第二时域资源集合的配置信息和第三时域资源集合的配置信息，所述网络设备确定所述候选时域资源集合为所述第一时域资源集合、所述第二时域资源集合和所述第三时域资源集合的并集。
  11. 根据权利要求9所述的通信方法，其特征在于，所述指示信息为一个或多个DCI；所述网络设备根据所述指示信息确定所述候选时域资源集合，包括：
    所述网络设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合。
  12. 根据权利要求9所述的通信方法，其特征在于，所述指示信息用于指示一个或多个DCI的DCI格式；所述网络设备根据所述指示信息确定所述候选时域资源集合，包括：
    所述网络设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合。
  13. 根据权利要求11或12所述的通信方法，其特征在于，所述网络设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合，包括：
    所述一个或多个DCI的DCI格式均为第一DCI格式，则所述网络设备确定所述候选时域资源集合为所述第一DCI格式对应的时域资源集合；
    或者，所述多个DCI的DCI格式为第二DCI格式，所述第二DCI格式为多个，所述网络设备确定所述候选时域资源集合为所述第二DCI格式对应的多个时域资源集合的并集。
  14. 根据权利要求11或12所述的通信方法，其特征在于，第一时域资源集合为预设的时域资源集合；所述网络设备根据所述一个或多个DCI的DCI格式，确定所述候选时域资源集合，包括：
    所述一个或多个DCI的DCI格式包括第三DCI格式，但不包括第四DCI格式，所述网络设备确定所述候选时域资源集合为所述第三DCI格式对应的时域资源集合和所述第一时域资源集合的并集；
    或者，所述一个或多个DCI的DCI格式不包括第三DCI格式，但包括第四DCI格式，所述网络设备确定所述候选时域资源集合为所述第四DCI格式对应的时域资源集合和所述第一时域资源集合的并集；
    或者，所述多个DCI的DCI格式包括第三DCI格式和第四DCI格式，所述网络设备确定所述候选时域资源集合为所述第三DCI格式对应的时域资源集合，所述第四DCI格式对应的时域资源集合，和所述第一时域资源集合的并集；
    或者，所述一个或多个DCI的DCI格式均不包括第三DCI格式和第四DCI格式，所述网络设备确定所述候选时域资源集合为所述第一时域资源集合。
  15. 一种通信装置，其特征在于，包括：用于执行权利要求1至7任一项所述的各个步骤的单元。
  16. 一种通信装置，其特征在于，包括：处理器，用于调用存储器中的程序，以执行权利要求1至7任一项所述的通信方法。
  17. 一种通信装置，其特征在于，包括：处理器和接口电路，所述接口电路用于与其它装置通信，所述处理器用于执行权利要求1至7任一项所述的通信方法。
  18. 一种通信装置，其特征在于，包括：用于执行权利要求8至14任一项所述的各个步骤的单元。
  19. 一种通信装置，其特征在于，包括：处理器，用于调用存储器中的程序，以执行权利要求8至14任一项所述的通信方法。
  20. 一种通信装置，其特征在于，包括：处理器和接口电路，所述接口电路用于与其它装置通信，所述处理器用于执行权利要求8至14任一项所述的通信方法。
  21. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储程序，所述程序被处理器调用时，权利要求1至7任一项所述的通信方法被执行，或者权利要求8至14任一项所述的通信方法被执行。
  22. 一种计算机程序，其特征在于，当所述程序被处理器调用时，权利要求1至7任一项所述的通信方法被执行，或者权利要求8至14任一项所述的通信方法被执行。
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