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WO2021072759A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2021072759A1
WO2021072759A1 PCT/CN2019/112002 CN2019112002W WO2021072759A1 WO 2021072759 A1 WO2021072759 A1 WO 2021072759A1 CN 2019112002 W CN2019112002 W CN 2019112002W WO 2021072759 A1 WO2021072759 A1 WO 2021072759A1
Authority
WO
WIPO (PCT)
Prior art keywords
control resource
resource sets
grouping information
information
terminal device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/112002
Other languages
English (en)
French (fr)
Inventor
刘显达
刘鹍鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2019/112002 priority Critical patent/WO2021072759A1/zh
Priority to PCT/CN2020/075423 priority patent/WO2021073020A1/zh
Priority to CN202080068658.XA priority patent/CN114451044B/zh
Priority to EP20877278.0A priority patent/EP4037402A4/en
Publication of WO2021072759A1 publication Critical patent/WO2021072759A1/zh
Priority to US17/721,495 priority patent/US12261801B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • downlink transmission resources are divided into a control area and a data area.
  • the control area is used to transmit control channels
  • the data area is used to transmit data channels.
  • the control information carried by the control channel includes the position of the resource block (RB) used by the data channel in the time domain and the frequency domain in the data region, and the data channel is used to carry downlink data or uplink data.
  • RB resource block
  • the NR standard proposes the concept of control resource set (CORESET). That is, each terminal device is divided into one or more control resource sets in the control area.
  • the base station may send a control channel to the terminal device on any control resource set corresponding to the terminal device, for example, sending downlink control information (DCI).
  • DCI downlink control information
  • the prior art introduces a CORESET grouping information indication mechanism.
  • some CORESET grouping information may be defaulted in the CORESET configuration information sent by the base station to the user equipment (UE). Therefore, how to ensure that the base station and the UE have the same understanding of the CORESET grouping information, so that The alignment of the base station and the terminal equipment to understand the sequence of the feedback information is a problem that needs to be solved urgently.
  • the present application provides a communication method and device, which are used to realize that network equipment and terminal equipment have the same understanding of the grouping information of CORESET.
  • an embodiment of the present application provides a communication method.
  • the method includes: a terminal device receives first indication information, where the first indication information is used to indicate grouping information of N control resource sets out of M control resource sets, and N Is less than M, N and M are positive integers greater than or equal to 1, and then the terminal device determines the grouping information of K control resource sets in addition to the N control resource sets in the M control resource sets according to the first indication information, K It is a positive integer greater than or equal to 1.
  • the terminal device determines the grouping information corresponding to the control resource set for which the grouping information is not indicated according to the grouping information corresponding to the control resource set for which the grouping information is indicated.
  • it can reduce signaling overhead and ensure that the base station has configuration groups.
  • the flexibility of information on the other hand, can ensure that the grouping information determined by the terminal device according to the above method is consistent with the network side.
  • the M control resource sets belong to the same carrier or the same BWP.
  • the terminal device determines the grouping information of the K control resource sets and the N control resources The grouping information of the sets is the same; when the grouping information of at least two control resource sets in the N control resource sets is different, the terminal device determines that the grouping information of the K control resource sets is the same as that of the first control resource set in the N control resource sets.
  • the grouping information is the same, where the grouping information of the first control resource set is the minimum value or the maximum value of the grouping information of the N control resource sets.
  • the M control resource sets belong to different carriers.
  • the terminal device determines that the K control resource sets for which the grouping information is not indicated are the same as the N control resource sets.
  • the grouping information of the resource sets is the same; when the N control resource sets are different grouping information, the terminal device determines that the K control resource sets for which the grouping information is not indicated are the same as the grouping information of the second control resource set.
  • the grouping information of the control resource set is the minimum value or the maximum value among the grouping information of the N control resource sets.
  • the M control resource sets belong to different carriers, and when the L control resource sets of the indicated grouping information in the same carrier are the same grouping information, the terminal device determines that the uninstructed ones in the same carrier
  • the control resource set of the grouping information is the same as the grouping information of the L control resource sets; when the grouping information of at least two control resource sets is different in the L control resource sets with the indicated grouping information in the same carrier, the terminal device determines the same carrier
  • the grouping information of the control resource set without indicating grouping information in is the same as the grouping information of the second control resource set; where L is a positive integer less than N, and the grouping information of the second control resource set is the grouping information of the L control resource sets
  • the minimum or maximum value of the L control resource sets is a partial control resource set of the N control resource sets.
  • the grouping information of the M control resource sets is one or more of ⁇ 0, 1 ⁇ .
  • the terminal device can ensure consistent understanding of the packet information with the network device according to the above method, so that the base station and the terminal device have consistent understanding of the number of bits for generating feedback information, and increase transmission reliability and resource utilization efficiency.
  • the M control resource sets are control resource sets in a carrier configured through RRC signaling or are control resource sets in a carrier that are instructed to be activated through MAC CE signaling.
  • the M control resource sets may all be control resource sets in activated carriers, or part of them may be control resource sets in activated carriers, and the rest may be control resource sets in inactive carriers.
  • the terminal device receives second indication information, where the second indication information is used to indicate carrier information of the M control resource sets; the method further includes:
  • the terminal device determines the first number of carriers of the first grouping information; wherein, the first grouping information is any one of the grouping information of the M control resource sets, and then, the terminal device determines the carrier corresponding to the first grouping information according to the first number
  • the number of bits in the downlink allocation index DAI field of the DCI carried by U control resource sets where U is less than M, and U and M are positive integers greater than or equal to 1.
  • the terminal device can still determine the number of bits in the DAI field of the DCI carried by the control resource set according to the grouping information and carrier information of all or part of the control resource set when the grouping information of the control resource set is default. , To ensure that terminal equipment and network equipment have consistent understanding of the number of DAI bits, and increase transmission reliability. The terminal device only determines the number of bits of the DCI carried in the control resource set under the grouping information according to the number of carriers containing the same grouping information, thereby reducing the overhead of the DCI.
  • the first indication information and the second indication information may be carried in the same message or in different messages.
  • the terminal device when the first number is greater than 1, the terminal device determines that the number of bits in the DAI field of the DCI carried by U control resource sets is the first value; when the first number is equal to 1, the terminal device determines The number of bits of the DAI field of the DCI carried by the U control resource sets is the second value; the first value is greater than the second value.
  • the terminal device determines that the total number of bits in the DAI (total DAI) field in the DCI carried in the control resource set corresponding to the first grouping information is 2, and the carrier of the first grouping information
  • the terminal device determines that the number of bits in the total DAI field in the DCI carried by the control resource set corresponding to the first grouping information is 0.
  • the terminal device determines the number of bits of the downlink data feedback information and the bit position of each downlink data feedback information in the feedback information sequence according to DAI.
  • DAI may include counter DAI.
  • DAI may also include total DAI, where counter DAI is used to identify the order of the DCI, thereby indicating that the data scheduled by the DCI is in the feedback information sequence.
  • Bit position, total DAI is used to identify the number of DCIs corresponding to the currently existing data to be fed back, thereby indicating the number of bits in the feedback information sequence.
  • the terminal device detects the DCI carried by the U control resource sets according to the number of bits in the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information.
  • the terminal device sends the first feedback information of the first downlink data, where the first downlink data is scheduled by DCI carried by at least one of the U control resource sets.
  • the terminal device generates the first feedback information sequence according to the DCI carried by at least one of the U control resource sets.
  • the terminal device only determines the number of bits of the DCI carried in the control resource set under the grouping information according to the number of carriers containing the same grouping information, thereby reducing the overhead of the DCI.
  • the terminal device determines the second number of carriers including the second grouping information according to the grouping information and carrier information of the M control resource sets; where the second grouping information is the grouping information of the M control resource sets Any one of the grouping information, and the second grouping information is different from the first grouping information; the terminal device determines the downlink allocation index DAI field bits of the DCI carried by the V control resource sets corresponding to the second grouping information according to the second number.
  • V is less than M, and V is a positive integer greater than or equal to 1; the terminal device detects the number of bits carried by the V control resource sets according to the number of bits in the DAI field of the DCI carried by the V control resource sets corresponding to the second grouping information DCI.
  • the uplink feedback resources of the downlink data scheduled by the DCI carried by the U control resource sets are different from the uplink feedback resources of the downlink data scheduled by the DCI carried by the V control resource sets within the same time unit .
  • the terminal device sends second feedback information of the second downlink data, where the second downlink data is scheduled by at least one DCI carried by V control resource sets.
  • the first feedback information and the second feedback information are respectively carried on different uplink resources within the same time unit.
  • the first feedback information and the second feedback information may be carried on two PUCCH resources that are time-division or frequency-division in the same slot.
  • the terminal device determines the HARQ-ACK feedback information corresponding to the DCI-scheduled downlink data carried on the control resource set configured with the same grouping information, generates the HARQ-ACK sequence, and determines the uplink resource occupied by the sequence .
  • the terminal device generates HARQ-ACK sequences for the HARQ-ACK feedback information corresponding to the DCI carried on the control resource sets configured with different grouping information, and respectively determines the uplink resources occupied by each HARQ-ACK sequence.
  • an embodiment of the present application provides a communication method, the method includes: a terminal device receives configuration information of M control resource sets sent by a network device, wherein the configuration information includes carrier information of the M control resource sets, and The grouping information of all or part of the control resource set; the terminal device determines the grouping information and carrier information of the M control resource sets according to the configuration information.
  • the terminal device determines the first number of carriers containing the first grouping information according to the grouping information and carrier information of part or all of the control resource sets in the M control resource sets; where the first grouping information is the grouping information of the M control resource sets Then, the terminal device determines, according to the first number, the number of bits in the downlink allocation index DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information; where U is less than M, and U and M are greater than Or a positive integer equal to 1.
  • the terminal device only determines the number of DCI bits carried in the control resource set under the grouping information according to the number of carriers containing the same grouping information, thereby reducing the overhead of the DCI.
  • the terminal equipment can also determine the number of bits in the DAI field in the DCI carried by the control resource set corresponding to each grouping information when the grouping information of some control resource sets is defaulted, so as to ensure that the terminal equipment and network equipment have a bit of DAI. Consistent understanding of numbers, increase transmission reliability.
  • the terminal device determines that the number of bits in the DAI field of the DCI carried by U control resource sets is the first value; when the first number is equal to 1, the terminal device It is determined that the number of bits of the DAI field of the DCI carried by the U control resource sets is the second value; the first value is greater than the second value. For example, when the first number is 2, the terminal device determines that the number of bits in the total DAI field in the DCI carried by the control resource set corresponding to the first grouping information is 2, and when the first number is 1, the terminal device determines that the first grouping information corresponds to The number of bits in the total DAI field in the DCI carried by the control resource set is 0.
  • the terminal device determines the number of bits of the downlink data feedback information and the bit position of each downlink data feedback information in the feedback information sequence according to DAI.
  • DAI may include counter DAI.
  • DAI may also include total DAI, where counter DAI is used to identify the order of the DCI, thereby indicating that the data scheduled by the DCI is in the feedback information sequence.
  • Bit position, total DAI is used to identify the number of DCIs corresponding to the currently existing data to be fed back, thereby indicating the number of bits in the feedback information sequence.
  • the terminal device detects at least one DCI carried by the U control resource sets according to the number of bits in the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information.
  • the terminal device sends the first feedback information of the first downlink data, where the first downlink data is scheduled by DCI carried by at least one of the U control resource sets.
  • the terminal device generates the first feedback information sequence according to the DCI carried in the U control resource sets.
  • the terminal device determines the number of bits of the DCI carried in the control resource set under the grouping information according to the number of carriers containing the same grouping information, thereby reducing the overhead of the DCI.
  • the terminal device determines the second number of carriers of the second grouping information; where the second grouping information is any one of the grouping information of the M control resource sets that is different from the first grouping information; the terminal The device determines the number of bits in the downlink allocation index DAI field of the DCI carried by the V control resource sets corresponding to the second grouping information according to the second quantity; where V is less than M, and V is a positive integer greater than or equal to 1, and the terminal device is based on The number of bits in the DAI field of the DCI carried by the V control resource sets corresponding to the second grouping information is used to detect at least one DCI carried by the V control resource sets.
  • the uplink feedback resources of the downlink data scheduled by the DCI carried by the U control resource sets are different from the uplink feedback resources of the downlink data scheduled by the DCI carried by the V control resource sets within the same time unit .
  • the terminal device sends second feedback information of second downlink data, where the second downlink data is DCI scheduling carried by V control resource sets, and the first feedback information and the second feedback information are respectively carried On different uplink resources in the same time unit. Specifically, in one time slot, the first feedback information and the second feedback information may be carried on different PUCCH resources.
  • the terminal device determines the HARQ-ACK feedback information corresponding to the DCI-scheduled downlink data carried on the control resource set configured with the same grouping information, generates the HARQ-ACK sequence, and determines the uplink resource occupied by the sequence .
  • the terminal device generates HARQ-ACK sequences for the HARQ-ACK feedback information corresponding to the DCI carried on the control resource sets configured with different grouping information, and respectively determines the uplink resources occupied by each HARQ-ACK sequence.
  • an embodiment of the present application provides a communication method, the method includes: a network device determines M control resource sets; the network device sends first indication information to a terminal device, and the first indication information includes the M control resource sets Grouping information of N control resource sets, N is less than M, and N and M are positive integers greater than or equal to 1. Among them, the grouping information of N control resource sets and M control resource sets except for N control resource sets The grouping information of the K control resource sets is related.
  • the network equipment carries the grouping information of some control resource sets in the configuration information.
  • signaling overhead can be reduced.
  • the grouping information of N control resource sets is related to the grouping information of K control resource sets. It can ensure that the terminal equipment and the network side have the same understanding of the grouping information.
  • the grouping information of the N control resource sets when the grouping information of the N control resource sets is the same, the grouping information of the N control resource sets is the same as the grouping information of the K control resource sets; at least two of the N control resource sets When the grouping information of the control resource set is different, the grouping information of the first control resource set in the N control resource sets is the same as the grouping information of the K control resource sets, where the grouping information of the first control resource set is N control resources The minimum or maximum value in the grouping information of the set.
  • the M control resource sets belong to the same carrier or the same BWP.
  • the grouping information of the L control resource sets is the same as the grouping information of the unindicated grouping information in the same carrier.
  • the set of control resources is the same;
  • the grouping information of the second control resource set in the L control resource sets is different from the grouping information of the second control resource set in the same carrier.
  • the grouping information of the control resource sets indicating the grouping information is the same; where L is less than N, and the grouping information of the second control resource set is the minimum or maximum value of the grouping information of the L control resource sets.
  • the terminal device can ensure consistency with the network device's understanding of the packet information according to the foregoing method, and increase the robustness of subsequent DCI detection.
  • the M control resource sets are control resource sets in a carrier configured through RRC signaling or MAC CE signaling. That is to say, the M control resource sets may all be activated control resource sets, or part of them may be activated control resource sets.
  • the method further includes:
  • the network device determines the first number of carriers of the first grouping information; where the first grouping information is any one of the grouping information of the M control resource sets; the first number is associated with the grouping information and the carrier information of the control resource sets.
  • the network device determines the number of bits in the downlink allocation index DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information according to the first number; where U is less than M, and U and M are positive integers greater than or equal to 1.
  • the network device sends the DCI in one or more of the U control resource sets according to the number of bits in the DAI field of the DCI carried by the U control resource sets.
  • the network device determines the number of bits in the DAI field of the DCI carried by the control resource set, and the first number is associated with the grouping information and carrier information of the control resource set to ensure that terminal devices and network devices understand the number of DAI bits Consistent, increase transmission reliability.
  • the network device sends second indication information, where the second indication information is used to indicate carrier information of the M control resource sets.
  • the carrier information can be used to indicate the first number or to instruct the terminal device to determine the first number.
  • the first indication information and the second indication information may be carried in the same message or in different messages.
  • the network device determines that the number of bits in the DAI field of the DCI carried by U control resource sets is the first value; when the first number is equal to 1, the network device determines The number of bits of the DAI field of the DCI carried by the U control resource sets is the second value; the first value is greater than the second value. For example, when the first number is 2, the terminal device determines that the number of bits in the total DAI field is 2, and when the first number is 1, the terminal device determines that the number of bits in the total DAI field is 0.
  • an embodiment of the present application provides a communication method.
  • the method includes: a network device determines M control resource sets, and the network device according to the grouping information and carrier information of part or all of the control resource sets in the M control resource sets, Determine the first number of carriers containing the first grouping information; where the first grouping information is any one of the grouping information of the M control resource sets.
  • the network device determines the number of bits in the downlink allocation index DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information according to the first number; where U is less than M, and U and M are positive values greater than or equal to 1. Integer.
  • the network device determines that the number of bits in the DAI field of the DCI carried by the control resource set is associated with the grouping information and carrier information of the control resource set to ensure that terminal devices and network devices have consistent understanding of the number of DAI bits and increase transmission Reliability.
  • the DCI corresponding to the grouping information includes total DAI, thereby reducing the overhead of the DCI.
  • the network device determines that the number of bits in the DAI field of the DCI carried by U control resource sets is the first value; when the first number is equal to 1, the network device determines The number of bits of the DAI field of the DCI carried by the U control resource sets is the second value; the first value is greater than the second value. For example, when the first number is 2, the terminal device determines that the number of bits in the total DAI field is 2, and when the first number is 1, the terminal device determines that the number of bits in the total DAI field is 0.
  • the network device sends the DCI in one or more of the U control resource sets according to the number of bits in the DAI field of the DCI carried by the U control resource sets.
  • an embodiment of the present application provides a communication device, the communication device includes a processor, the processor is coupled with a memory, wherein: the memory is used to store instructions; the processor is used to execute instructions stored in the memory to execute The above-mentioned first aspect or any one of the possible design methods of the first aspect.
  • the communication device may further include the memory.
  • the communication device may further include a transceiver, which is used to support the communication device to send and/or receive information in the foregoing method.
  • the communication device may be a terminal device, or a device in a terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may also include other circuit structures and/or Discrete devices.
  • a communication device may be a terminal device, or a device in a terminal device, or a device that can be matched and used with a terminal device.
  • the device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the first aspect or the second aspect.
  • the modules may be hardware circuits, software, or hardware. Circuit combined with software implementation.
  • the device may include a transceiving module and a processing module, and the transceiving module and the processing module can perform corresponding functions in any design example of the first aspect or the second aspect.
  • the transceiving module and the processing module please refer to The records of the first aspect or the second aspect will not be explained here.
  • a communication device may be a network device, or a device in a network device, or a device that can be matched and used with a network device.
  • the device may include a module that performs one-to-one correspondence of the method/operation/step/action described in the third aspect or the fourth aspect.
  • the module may be a hardware circuit, software, or hardware. Circuit combined with software implementation.
  • the device may include a transceiver module, and the transceiver module is configured to perform the corresponding function in any design example of the third aspect or the fourth aspect.
  • the specific functions of the processing module and the transceiver module please refer to the record of the third aspect or the fourth aspect mentioned above, which will not be described here.
  • embodiments of the present application also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any possible design of the first aspect, the first aspect, the second aspect, or the first aspect.
  • an embodiment of the present application also provides a chip system, which includes a processor and may also include a memory for implementing any possible design of the first aspect, the first aspect, the second aspect, or the second aspect Any possible design, any possible design of the third aspect or the third aspect, any possible design method of the fourth or the fourth aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute any one of the first aspect, the first aspect, the second aspect, or the second aspect.
  • an embodiment of the present application provides a system, and the system includes the device described in the fourth aspect or the fifth aspect.
  • FIGS. 1A to 1B are schematic diagrams of communication scenarios to which the embodiments of this application are applicable;
  • FIGS. 2A to 2D are schematic diagrams of a dynamic HARQ-ACK code division generation mechanism provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 4A to FIG. 4I are schematic diagrams of a situation in which grouping information is determined according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of another communication method provided by an embodiment of this application.
  • FIG. 6 and FIG. 7 are schematic diagrams of a situation of determining the number of DAI bits of DCI according to an embodiment of the application
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • LTE long term evolution
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation of the future
  • 6G future communication systems
  • the word "exemplary” is used to mean serving as an example, illustration, or illustration. Any embodiment or design solution described as an "example” in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, the term example is used to present the concept in a concrete way.
  • information, signal, message, and channel can sometimes be used together. It should be noted that the meanings to be expressed are the same when the differences are not emphasized. “ ⁇ (of)”, “corresponding (relevant)” and “corresponding (corresponding)” can sometimes be used together. It should be pointed out that the meanings to be expressed are the same when the difference is not emphasized.
  • TDD time division duplex
  • FDD frequency division duplex
  • the embodiments of this application can be applied to both traditional typical networks and future UE-centric networks.
  • the UE-centric network introduces a non-cell network architecture, that is, a large number of small stations are deployed in a specific area to form a hyper cell, and each small station is a transmission point of the Hyper cell ( Transmission Point, TP) or TRP, and is connected to a centralized controller (controller).
  • TP Transmission Point
  • TRP Transmission Point
  • the network side device selects a new sub-cluster (subcluster) for the UE to serve it, thereby avoiding real cell switching and realizing UE service continuity.
  • the network side device includes a wireless network device.
  • FIG. 1A shows a schematic diagram of a communication system applicable to the communication method of an embodiment of the present application.
  • FIG. 1A shows a schematic diagram of a communication system applicable to the communication method of an embodiment of the present application.
  • the specific operation method in the method embodiment can also be applied to the device embodiment or the system embodiment. Among them, in the description of the present application, unless otherwise specified, "multiple" means two or more.
  • FIG. 1A is a schematic diagram of a network architecture in a carrier aggregation scenario to which this application applies.
  • the network architecture includes a first network device 100, a second network device 110, and a terminal device 120, and two downlink carrier units: CC1 and CC2,
  • the CC1 and CC2 of the first network device 100 and the second network device 110 operate on different frequencies.
  • the terminal device 120 may be a wireless terminal device capable of receiving network device scheduling and instruction information.
  • the wireless terminal device may be a device that provides voice and/or data connectivity to the user, or a handheld device with wireless connection function, or a wireless terminal device connected to a wireless device. Other processing equipment for the modem.
  • the network device (for example, a macro base station) 100 is an entity used to transmit or receive signals on the network side, and the network device may be a device used to communicate with a mobile device.
  • the network device provides services for the cell
  • the terminal device communicates with the network device through the communication resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell may be a network device (
  • the cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, and Pico cell. Pico cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • a device that provides a wireless communication function for a terminal device is referred to as a network device.
  • FIG. 1B is a schematic diagram of a network architecture in a dual-connectivity (DC) scenario to which this application applies.
  • the architecture includes two cell groups: a master cell group (master cell group, MCG) and a secondary cell group (secondary cell group). cell group, SCG).
  • MCG master cell group
  • SCG secondary cell group
  • the MCG includes one primary cell (primary cell, PCell) or additionally includes one or more secondary cells (secondary cell, SCell), and the SCG includes one primary and secondary cell (PSCell) or additionally includes one or more SCells.
  • the network device that manages the MCG is called the main network device or the main node, and the network device that manages the SCG is called the auxiliary network device or the auxiliary node.
  • the 5G cell can be used as a macro coverage network (as a main network device), or as a small station (as a secondary network device) to cover and enhance the capacity of the existing LTE network.
  • a macro coverage network as a main network device
  • a small station as a secondary network device
  • dual connectivity technology can be used to realize the interconnection of LTE and 5G systems, thereby improving the radio resource utilization rate of the entire mobile network system, reducing the delay of system switching, and improving user and system performance.
  • the primary network equipment may be one of LTE network equipment (such as eNB), 5G network equipment (such as gNB), or future communication network equipment
  • the auxiliary network equipment may also be LTE network equipment, 5G network equipment, or future communication network equipment.
  • One of the communication network equipment, and the main network equipment and the auxiliary network equipment can be network equipment of the same standard, such as both eNBs, or network equipment of different standards, for example, the main network equipment is an eNB, and the auxiliary network equipment is a gNB .
  • This application does not limit the communication standards of the main network device and the auxiliary network device.
  • FIGS. 1A and 1B are only simplified schematic diagrams for ease of understanding and examples.
  • the communication system may also include other network devices or other terminal devices, which are not shown in FIGS. 1A and 1B.
  • Terminal devices including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) , Remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device) and so on.
  • IoT Internet of things
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).
  • OBU on-board unit
  • Network equipment for example, including access network (AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface
  • AN access network
  • a base station e.g., access point
  • a network device in a V2X technology is a road side unit (RSU).
  • the base station can be used to convert received air frames and Internet Protocol (IP) packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network.
  • IP Internet Protocol
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include the LTE system or the evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in the long term evolution-advanced (LTE-A), or may also include the fifth-generation mobile Communication technology (the 5 th generation, 5G) new radio (new radio, NR) system in the next generation node B (next generation node B, gNB) or can also include cloud access network (cloud radio access network, Cloud RAN)
  • the centralized unit (centralized unit, CU) and distributed unit (distributed unit, DU) in the system are not limited in the embodiment of the present application.
  • Downlink control channels such as PDCCH, or enhanced physical downlink control channels (PDCCH), or other downlink control channels, which are not specifically limited.
  • CORESET refers to the physical resource used to carry PDCCH or DCI.
  • each CORESET corresponds to a set of parameters.
  • the parameters can include: the index number of the CORESET, the number of consecutive OFDM symbols occupied by the CORESET, a set of resource blocks (resource blocks, RB) occupied by the CORESET, and the CORESET
  • DMRS demodulation reference signal
  • each CORESET will be associated with one or more PDCCH candidates. It can be understood that the terminal device performs a DCI detection operation on each PDCCH candidate.
  • a DCI detection operation is performed on part of the physical resources in the CORESET.
  • the CORESET configuration can be issued through RRC signaling.
  • the CORESET can be considered as a user-specific control resource collection, or it can be issued through a system message or a broadcast message, for example, through SIB.
  • the CORESET can be considered as a cell.
  • a specific set of control resources, that is, multiple terminal devices in a cell can share the CORESET.
  • the component carrier (CC) in this application corresponds to a specific frequency band, or, under a specific network architecture, it can also be understood as a virtual cell, such as a serving cell.
  • Each carrier corresponds to a set of specific configuration parameters.
  • the configuration parameters include one or more bandwidth part (BWP) configuration information.
  • BWP bandwidth part
  • Each BWP occupies part or all of the bandwidth of the carrier.
  • BWP configuration The information includes: frequency-domain subcarrier spacing configuration information, the number and location of RBs included in the BWP, as well as uplink and downlink data channel configuration information and control channel configuration information.
  • the downlink control channel configuration information includes one or more control resource set configuration information.
  • the terminal device can determine its BWP and carrier according to the above configuration information.
  • a specific set of configuration parameters corresponding to a carrier can be delivered through RRC signaling.
  • the carrier can be considered as a user-specific carrier, or it can be delivered through system messages or broadcast messages, such as through SIB.
  • the carrier can be considered as a cell-specific carrier, that is, multiple terminal devices in a cell can share the carrier.
  • the configured carrier can be activated or deactivated through MAC CE signaling, and the communication between the network device and the terminal device is only performed on the activated carrier.
  • the network device needs to send additional signaling to indicate the currently activated BWP in the carrier. Therefore, the communication between the network device and the terminal device is only performed on the activated BWP.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • first and second are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • the first signal and the second signal are only for distinguishing different signals, but do not indicate the difference in content, priority, transmission order, or importance of the two signals.
  • the basic time unit of downlink resource scheduling in the 5G mobile communication system is a slot.
  • a slot is composed of 7 or 14 symbols in the time domain.
  • a slot can be divided into a control area and a data area.
  • the data area is used to transmit a physical downlink shared channel (PDSCH) that carries downlink data.
  • the control area is used to send a physical downlink control channel (PDCCH), and the PDCCH is used to carry downlink control information (DCI).
  • the time-frequency resources used by PDSCH and PDCCH are composed of one or more resource blocks (Resource Block, RB) in the frequency domain.
  • Each RB is composed of 12 consecutive subcarriers in the frequency domain and one symbol in the time domain.
  • a subcarrier and a symbol in the time domain are called a resource element (Resource Element, RE).
  • the base station transmits PDSCH to the terminal equipment, and the PDSCH is generally scheduled through the control information carried in the PDCCH, and the control information is, for example, DCI.
  • the control information is, for example, DCI.
  • the UE needs to detect and decode the DCI first.
  • the DCI carried by the PDCCH contains transmission information indicating the PDSCH, for example, time-frequency-space resources occupied by the PDSCH, that is, downlink resource allocation information.
  • the UE In the control area of a time slot, there are one or more CORESETs, and the UE can detect DCI on these one or more CORESETs. And one or more DCI detections can be performed on each CORESET.
  • the terminal device needs to receive the PDSCH according to its own algorithm and determine the HARQ-ACK information of the PDSCH according to the result of receiving the PDSCH to inform the network device whether the current PDSCH is received correctly. If the PDSCH is decoded correctly, the terminal device feedbacks ACK (positive confirmation), otherwise The terminal device feeds back NACK (Negative Acknowledgement), for example, the HARQ-ACK information bit position 0 of the PDSCH indicates NACK, and the bit position 1 indicates ACK.
  • the HARQ-ACK information corresponding to multiple PDSCHs can be jointly encoded to generate a HARQ-ACK sequence and carried on the uplink resource.
  • the existing HARQ-ACK sequence generation has the following two mechanisms:
  • Mechanism 1 A static HARQ-ACK sequence, or a mechanism for generating a static HARQ-ACK codebook. That is, the terminal device determines the number of HARQ-ACK bits based on the number of PDSCHs that may be scheduled within a period of time, and determines the correspondence between each HARQ-ACK bit and the PDSCH based on the predefined sequence of the PDSCH that may be scheduled, so that the corresponding HARQ-ACK bit Upload feedback information. This mechanism does not depend on the number of DCI actually issued by the base station, and the number of HARQ-ACK bits is reserved.
  • Mechanism 2 Dynamic HARQ-ACK sequence, or a mechanism for generating dynamic HARQ-ACK codebook. That is, the terminal device determines the number of bits of the HARQ-ACK sequence and the ordering of each DCI based on the information indicated by the DAI in the detected DCI. The ordering of the DCI corresponds to the feedback information of the PDSCH scheduled by the DCI in the HARQ-ACK sequence. Of bits. This mechanism relies on the actual number of DCI sent by the base station.
  • the base station will carry the DAI indication when sending the DCI to make the HARQ clear -The number of bits in the ACK sequence and the PDSCH corresponding to each bit.
  • the terminal device has the following two HARQ-ACK information feedback methods, where the uplink resource carrying HARQ-ACK information is taken as an example of PUCCH.
  • Method 1 Unified feedback of HARQ-ACK information of multiple base stations, that is to say, multiple base stations issue N PDSCHs, and UE unified feedback of HARQ-ACK information corresponding to N PDSCHs.
  • the HARQ-ACK information is carried on a PUCCH resource, and the HARQ-ACK information corresponds to a HARQ-ACK sequence, that is, the HARQ-ACK information is jointly coded.
  • Manner 2 Feed back the HARQ-ACK information of each base station independently.
  • base station 1 sends N1 PDSCHs
  • base station 2 sends N2 PDSCHs
  • the UE feeds back the HARQ-ACK information corresponding to N1 PDSCHs and N2 PDSCHs, respectively.
  • the HARQ-ACK information corresponding to N1 PDSCHs forms a HARQ-ACK sequence and is carried on PUCCH1
  • the HARQ-ACK information corresponding to N2 PDSCHs forms a HARQ-ACK sequence and is carried on PUCCH2.
  • the dynamic HARQ-ACK codebook determines the number of HARQ-ACK bits and the order of the feedback information of the PDSCH scheduled by each DCI in the HARQ-ACK sequence according to the information indicated by the actual DCI DAI.
  • the terminal device needs to determine which HARQ-ACK feedback information of the PDSCH generates the same HARQ-ACK sequence.
  • the method is to determine the time domain position (for example, a time slot) of the uplink feedback based on the detected DCI, and the DCI indicating the same PUCCH time domain position performs unified feedback.
  • the terminal device determines the time domain positions of PDSCH 1 and PDSCH 2 according to the time domain positions of DCI 1 and DCI 2 and the time domain positions of PDSCH relative to DCI indicated by the two DCIs respectively, and according to DCI 1 and DCI 2 respectively.
  • the indicated HARQ-ACK feedback delay information determines the time domain position of the PUCCH corresponding to each of PDSCH 1 and PDSCH 2.
  • the time domain position of the PUCCH indicated by two DCIs is the same, for example, in the same slot, the two PDSCHs HARQ-ACK is fed back uniformly. Based on the above mechanism, the number of HARQ-ACK bits carried by each PUCCH can be determined, that is, the number of PDSCHs corresponding to the feedback.
  • the terminal device needs to determine the PDSCH corresponding to the HARQ-ACK fed back on each bit of the corresponding HARQ-ACK based on the predefined DCI arrangement order, so as to feed back the information of the corresponding PDSCH on each bit.
  • the DCI ranking criteria are as follows: In the first step, all DCIs are sorted according to PDCCH transmission timing (monitoring occasion); in the second step, after the first sorting, the DCIs with the same sorting are further sorted according to the component carrier (CC) index value from small to Large ordering, where the PDCCH monitoring occurrence is determined according to the PDCCH detection period, detection offset (offset), and detection pattern (configured in the search space set). For example, in FIG. 2B, the terminal device determines that 4 DCIs correspond to the same feedback moment (that is, the same PUCCH resource).
  • CC component carrier
  • the HARQ-ACK feedback information corresponding to DCI 1 is located at the first bit in the HARQ-ACK sequence, and the HARQ-ACK feedback information corresponding to DCI 2 is located at the second bit in the HARQ-ACK sequence. analogy.
  • each DCI carries a field that indicates the cumulative number of DCIs, called a counter downlink assignment index (Downlink Assignment Indication, DAI), which is used to avoid HARQ when the DCI is missed.
  • DAI Downlink Assignment Indication
  • This field (usually 2-bit) is used to indicate the current DCI sorting (the indication rule is the same as the above DCI sorting rule), and further indicates the bit position of HARQ-ACK corresponding to the current DCI.
  • the DCI will include Total DAI to indicate the current time and the total number of DCIs before.
  • the terminal device only determines the number of DAI bits in the DCI (that is, whether there is Total DAI) according to the number of carriers corresponding to the configured CORESET, and then the number of HARQ-ACK bits, without considering the grouping information of the CORESET. Because the feedback information corresponding to the uplink data scheduled by the DCI carried by the CORESET of different groups may be fed back separately, the terminal equipment and the network equipment may have inconsistent perceptions of the number of DCI bits according to the prior art.
  • FIG. 3 it is a schematic flowchart of the first communication method provided by the embodiment of this application.
  • the method includes:
  • Step 301 The network device determines M control resource sets.
  • the network device determines one or more carriers, including the identification of each carrier and physical resource location information, etc., where one or more control resource sets are configured on each carrier.
  • the network device also determines the grouping information of the control resource set.
  • the grouping information can be carried in the parameter set corresponding to the control resource set, and there are multiple possible values.
  • the DCI-scheduled PDSCH carried in the control resource set with the same grouping information can perform unified feedback, that is, the corresponding HARQ-ACK information can be used to generate a HARQ-ACK sequence and be carried on the same uplink resource.
  • the grouping information can be used to characterize the transmission point information to which the control resource set belongs, and the HARQ-ACK information corresponding to the PDSCH scheduled by the same transmission point can be fed back to the transmission point in a unified manner.
  • the grouping information carried by the configured M control resource sets is 0 or 1.
  • the M control resource sets are divided into two groups, and the group numbers are 0 and 1, respectively.
  • the HARQ-ACK information corresponding to the control resource set whose configuration grouping information is 0 can be unified to generate a HARQ-ACK sequence to be carried on one uplink resource.
  • the control resource set on each carrier can be configured as group 0 or group 1, that is, the grouping information on different carriers is consistent. If the control resource sets on multiple carriers have the same grouping information, the data scheduled on multiple carriers can be uniformly coded and fed back.
  • the terminal device uses the grouping information to further sort the DCI. That is, the DCI sorting is not only based on PDCCH detection timing and carrier number, but also sorting based on grouping information, so as to determine the PDSCH corresponding to each bit of HARQ-ACK.
  • Step 302 The network device sends first indication information to the terminal device, where the first indication information is used to indicate the grouping information of the N control resource sets in the M control resource sets, and N is less than M.
  • the grouping information of the N control resource sets is related to the grouping information corresponding to the K control resource sets other than the N control resource sets in the M control resource sets.
  • the first indication information includes the grouping information of a part of the control resource sets in the M control resource sets, and the grouping information of a part of the control resource sets is defaulted.
  • the grouping information can be an identifier or an index value (for example, a group serial number).
  • the first indication information is used to indicate that the grouping information of CORESET#1 is 0, and the grouping information of CORESET#2 is 1.
  • the network device sends configuration information of M control resource sets to the terminal device.
  • the configuration information includes first indication information.
  • the M control resource sets may be control resource sets in a carrier configured by a network device through radio resource control (radio resource control, RRC) signaling.
  • RRC radio resource control
  • the M control resource sets may also be control resource sets in a carrier activated by a network device through media access control control element (MAC CE) signaling.
  • the network device can configure one or more carriers, one or more carriers can include the configuration information of the corresponding control resource set, and further activate some or all of the control resources in one or more carriers through MAC CE signaling set.
  • Step 304 The terminal device determines the grouping information corresponding to the K control resource sets other than the N control resource sets among the M control resource sets according to the first indication information.
  • K is a positive integer greater than or equal to 1.
  • the possible values of K are as follows: suppose that M control resource sets are all control resource sets in all carriers configured by the base station. If the grouping information corresponding to the K control resource sets is determined based on the grouping information in the control resource sets in the carrier configured by all RRC signaling, then K is equal to the difference between M and N. If the grouping information corresponding to the K control resource sets is determined based on the grouping information in the control resource set in the activated carrier, then K may be less than the difference between M and N.
  • the M control resource sets are the control resource sets in the activated carrier. If the grouping information corresponding to the K control resource sets is determined based on the grouping information in the control resource sets in all activated carriers, then K is equal to the difference between M and N.
  • M control resource sets are control resource sets in one carrier. If the grouping information corresponding to the K control resource sets is determined based on the grouping information in the same carrier, then K is equal to the difference between M and N.
  • the following describes various situations in which the terminal device in the embodiment shown in FIG. 3 determines the grouping information of the K control resource sets.
  • M control resource sets are all located on the same carrier or the same bandwidth part (BWP).
  • the terminal device determines the grouping information of the K control resource sets and N The grouping information of the two control resource sets is the same. That is, the M control resource sets are all located on the same carrier or the same BWP.
  • the N control resource sets correspond to the PDSCH scheduled by the DCI carried in the K control resource sets.
  • the HARQ-ACK feedback information can be uniformly coded to generate the same HARQ-ACK feedback sequence and can be carried in the same uplink resource. Or, it can be understood that the N control resource sets and the K control resource sets correspond to the same transmission point.
  • the grouping information configured for CORESET#1 is group 0, the grouping information configured for CORESET#2 is group 0, and the grouping information of CORESET#3 is defaulted.
  • CORESET#4 is configured as group 0.
  • the terminal device can determine that the grouping information of CORESET#3 is group 0 according to the group 0 where CORESET#1, CORESET#2, and CORESET#4 are located. In other words, CORESET#1, CORESET#2, CORESET#3, and CORESET#4 correspond to the same transmission point.
  • the M control resource sets are all located on the same carrier or the same BWP, and when the grouping information of at least two control resource sets in the N control resource sets is different, the terminal device determines the grouping information of the K control resource sets and N The grouping information of the first control resource set in the control resource set is the same, where the grouping information of the first control resource set is the minimum value or the maximum value of the grouping information of the N control resource sets. That is, the M control resource sets are all located on the same carrier or the same BWP, and when the grouping information of at least two control resource sets in the N control resource sets is different, the grouping information of the first control resource set is used as the N control resource sets.
  • the control resource set with the minimum grouping information among the N control resource sets and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the K control resource sets can be unified Encode and generate the same HARQ-ACK feedback sequence and can be carried in the same uplink resource.
  • the control resource set with the smallest grouping information among the N control resource sets corresponds to the same transmission as the K control resource sets point.
  • the grouping information configured for CORESET#1 is group 0, the grouping information configured for CORESET#2 is group 1, and the grouping information of CORESET#3 is defaulted.
  • CORESET#4 is configured as group 0.
  • the terminal device can determine that the grouping information of CORESET#3 is group 0, or the terminal device can determine that the grouping information of CORESET#3 is group 1, that is, when CORESET#3 corresponds to the smallest grouping information, CORESET#1, CORESET# 3 and CORESET#4 correspond to the same transmission point.
  • CORESET#3 corresponds to the largest packet information
  • CORESET#2 and CORESET#3 correspond to the same transmission point.
  • M control resource sets are located on different carriers, and when the grouping information of the N control resource sets is the same, the terminal device determines that the grouping information of the K control resource sets is the same as the grouping information of the N control resource sets. That is, M control resource sets are configured in multiple carriers, and all control resource sets configured with grouping information, for example, when N control resource sets are configured with the same grouping information, N control resource sets and K
  • the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the control resource set can be uniformly coded to generate the same HARQ-ACK feedback sequence and can be carried in the same uplink resource. Or, it can be understood that the N control resource sets and the K control resource sets correspond to the same transmission point.
  • the base station configures a total of 2 carriers, where the grouping information configured for CORESET#1 on the first carrier (CC1) is group 0, and the grouping information configured for CORESET#2 is group 0.
  • the grouping information of CORESET#3 on the second carrier is defaulted, and the grouping information configured for CORESET#4 on the second carrier (CC2) is group 0.
  • the terminal device can determine that the grouping information of CORESET#3 on the second carrier is group 0, that is, CORESET#1, CORESET#2, CORESET#3, and CORESET#4 correspond to the same transmission point.
  • Scenario 4 M control resource sets are located on different carriers, and when the grouping information of at least two control resource sets in the N control resource sets is different, the terminal device determines that the grouping information of the K control resource sets is different from that of the N control resource sets.
  • the grouping information of the first control resource set is the same, where the grouping information of the first control resource set is the minimum value or the maximum value of the grouping information of the N control resource sets. That is, when the M control resource sets are located on different carriers, and the grouping information of at least two control resource sets in the N control resource sets is different, the grouping information of the first control resource set is used as the grouping information of the N control resource sets.
  • control resource set with the minimum grouping information among the N control resource sets and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the K control resource sets can be uniformly coded and generate the same one
  • the HARQ-ACK feedback sequence may be carried in the same uplink resource or it can be understood that the control resource set with the smallest grouping information among the N control resource sets and the K control resource sets correspond to the same transmission point.
  • the base station configures a total of 2 carriers, where the grouping information configured for CORESET#1 on the first carrier (CC1) is group 0, and the grouping information configured for CORESET#2 is group 1.
  • the grouping information of CORESET#3 on the second carrier (CC2) is defaulted, and the grouping information configured for CORESET#4 on the second carrier is group 0.
  • the terminal device can determine that the grouping information of CORESET#3 on the second carrier is the minimum value (group 0), or the terminal device can determine that the grouping information of CORESET#3 on the second carrier is the maximum value (group 1), that is, when When CORESET#3 corresponds to the smallest grouping information, CORESET#1, CORESET#3, and CORESET#4 correspond to the same transmission point. When CORESET#3 corresponds to the largest grouping information, CORESET#2 and CORESET#3 correspond to the same transmission point .
  • Scenario 5 M control resource sets are located on different carriers, and when the L control resource sets with grouping information indicated in the same carrier are the same grouping information, it is determined that the control resource sets for which grouping information is not indicated in the carrier are the same as those in the same carrier.
  • the grouping information of the L control resource sets is the same, where L is less than or equal to N.
  • M control resource sets are located on different carriers, and when the L control resource sets indicated with grouping information in the same carrier are the same grouping information, the L control resource sets and the K control resource sets are the same as the L control resource sets.
  • the control resource set is located in the control resource set of the same carrier and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the control resource set of the same carrier can be uniformly coded to generate the same HARQ-ACK feedback sequence and can be carried in the same uplink resource.
  • the control resource sets located on the same carrier as the L control resource sets correspond to the same transmission point.
  • the base station configures a total of 2 carriers, where the grouping information configured for CORESET#1 on the first carrier (CC1) is group 0, and the grouping information configured for CORESET#2 is group 0.
  • the grouping information of CORESET#3 is defaulted, and the grouping information configured for CORESET#4 on the second carrier (CC2) is group 1.
  • the terminal device can determine that the grouping information of CORESET#3 on the first carrier is group 0. In other words, CORESET#1, CORESET#2, and CORESET#3 correspond to the same transmission point.
  • M control resource sets are located on different carriers, and the grouping information of at least two control resource sets in the L control resource sets for which grouping information is indicated in the same carrier is different, it is determined that the grouping information is not indicated in the carrier
  • the grouping information of the control resource set is the same as the grouping information of the second control resource set; wherein, the grouping information of the second control resource set is the minimum value or the maximum value of the L control resource sets.
  • the grouping information of the second control resource set is used Taking the minimum value of the L control resource sets as an example, the control resource set with the smallest grouping information among the L control resource sets and the control resource set on the same carrier as the L control resource sets are carried in the control resource set of the K control resource sets.
  • the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI can be uniformly coded to generate the same HARQ-ACK feedback sequence and can be carried in the same uplink resource.
  • the control resource set with the smallest grouping information among the L control resource sets and the control resource set located on the same carrier as the L control resource sets in the K control resource sets correspond to the same transmission point.
  • the base station is configured with a total of 2 carriers, where the grouping information configured for CORESET#1 on the first carrier is group 0, the grouping information configured for CORESET#2 is group 1, and the grouping information configured for CORESET#2 is group 1.
  • the grouping information of CORESET#3 on the upper carrier is defaulted, and the grouping information configured for CORESET#4 on the second carrier is group 1.
  • the terminal device can determine that the grouping information of CORESET#3 on the first carrier is the minimum value (group 0), that is, CORESET#1 and CORESET#3 correspond to the same transmission point; it can also determine that CORESET#3 on the first carrier
  • the grouping information of is the maximum value (group 1), that is, CORESET#2 and CORESET#3 correspond to the same transmission point.
  • M control resource sets are located on one or more activated carriers, and when the grouping information of the N control resource sets is the same, the terminal device determines that the grouping information of the K control resource sets is the same as the grouping information of the N control resource sets.
  • the M control resource sets are in the activated carrier among the configured multiple carriers, wherein the control resource sets in the activated carrier are all activated, for example, the N control resource sets and the K control resource sets are all configured the same
  • the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the N control resource sets and the K control resource sets can be uniformly coded and generate the same HARQ-ACK feedback sequence, which can be carried in the same One uplink feedback resource. Or, it can be understood that the N control resource sets and the K control resource sets correspond to the same transmission point.
  • the base station is configured with a total of 4 carriers, but only 2 carriers are activated.
  • CORESET#1 on the activated first carrier (CC1) is configured as group 0,
  • CORESET#1 on the activated first carrier (CC1) is configured as group 0,
  • CORESET#2 is configured as group 0
  • the grouping information of CORESET#3 on the activated second carrier (CC2) is defaulted
  • the grouping information configured for CORESET#4 on CC2 is group 0
  • the third carrier is inactive
  • the configured grouping information of CORESET#5 on (CC3) is group 1
  • the configured grouping information of CORESET#6 and CORESET#7 on the inactive fourth carrier (CC4) is group 1.
  • the terminal device can determine that the grouping information of CORESET#3 on the second carrier is group 0, that is, CORESET#1, CORESET#2, CORESET#3, and CORESET#4 correspond to the same transmission point.
  • M control resource sets are located in one or more activated carriers, and when the grouping information of at least two control resource sets in the N control resource sets is different, the terminal device determines that the grouping information of the K control resource sets is the same as that of the N control resource sets.
  • the grouping information of the first control resource set in the control resource set is the same, wherein the grouping information of the first control resource set is the minimum value or the maximum value of the grouping information of the N control resource sets.
  • the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the control resource sets and the control resource set with the smallest grouping information in the control resource sets can be uniformly coded and generate the same HARQ-ACK feedback sequence and can be carried In the same uplink resource, or, it can be understood that the control resource set with the smallest grouping information among the N control resource sets and the K control resource sets correspond to the same transmission point.
  • the base station configures a total of 4 carriers, but only activates 2 carriers.
  • the group information configured for CORESET#1 on the activated first carrier (CC1) is group 0, CORESET
  • the grouping information configured for #2 is group 1
  • the grouping information of CORESET#3 on the activated second carrier (CC2) is defaulted
  • the grouping information configured for CORESET#4 on the second carrier is group 0, and the grouping information of CORESET#4 on the second carrier is group 0.
  • the configured grouping information of CORESET#5 on the three-carrier (CC3) is group 1
  • the configured grouping information of CORESET#6 and CORESET#7 on the inactive fourth carrier (CC4) is group 1.
  • the terminal device can determine that the grouping information of CORESET#3 on the second carrier is the minimum value (group 0), or the terminal device can determine that the grouping information of CORESET#3 on the second carrier is the maximum value (group 1), that is, when When CORESET#3 corresponds to the smallest grouping information, CORESET#1, CORESET#3, and CORESET#4 correspond to the same transmission point. When CORESET#3 corresponds to the largest grouping information, CORESET#2 and CORESET#3 correspond to the same transmission point .
  • the grouping information corresponding to the K control resource sets is different from the grouping information corresponding to the N control resource sets. That is, the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the K control resource sets can be uniformly coded and generate the same HARQ-ACK feedback sequence, and can be carried in the same uplink resource. Or, it can be understood that the K control resource sets correspond to the same transmission point.
  • the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the N control resource sets cannot be carried in the same HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI carried in the K control resource sets Uplink resources.
  • the base station is configured with a total of 2 carriers.
  • the grouping information configured for CORESET#1 on carrier 1 is group 0, the grouping information configured for CORESET#2 is group 1, and the grouping information configured on carrier 2 is The grouping information of CORESET#3 is default, and the grouping information configured for CORESET#4 is group 0.
  • the terminal device determines that the grouping information of CORESET#3 is not group 0 and group 1.
  • the terminal device can determine that the grouping information of CORESET#3 is group 2, and the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI of CORESET#3 is carried in the same uplink resource and is not shared by other DCIs in CORESET.
  • the HARQ-ACK feedback information corresponding to the scheduled PDSCH is carried in the same uplink resource.
  • the terminal device may also be uncertain about the grouping information of CORESET#3, and directly determine that the HARQ-ACK feedback information corresponding to the PDSCH scheduled by the DCI of CORESET#3 is carried in the same uplink resource and is not shared by other DCIs in CORESET.
  • the HARQ-ACK feedback information corresponding to the scheduled PDSCH is carried in the same uplink resource.
  • the terminal device may not be sure of the grouping information corresponding to the CORESET that is not configured with the grouping information, but directly generate HARQ-ACK feedback information based on the situation in the above example.
  • a schematic flowchart of another communication method provided in an embodiment of this application includes:
  • Step 501 The network device determines M control resource sets.
  • step 301 For the specific configuration mode of the M control resource sets, refer to step 301, which will not be repeated here.
  • Step 502 The network device sends configuration information of M control resource sets to the terminal device.
  • the configuration information of the M control resource sets includes grouping information and carrier information of the M control resource sets. In another case, the configuration information of the M control resource sets includes carrier information of the M control resource sets and grouping information of a part of the control resource sets.
  • Step 503 The terminal device receives configuration information.
  • Step 504 The terminal device determines the grouping information and carrier information of the M control resource sets according to the configuration information.
  • the terminal device determines the grouping information of the M control resource sets according to the configuration information. In addition, the terminal device also determines the carrier information of the M control resource sets according to the configuration information sent by the network device.
  • the terminal device determines the M control resources according to the method in the embodiment shown in FIG. 3 The grouping information of the collection. In addition, the terminal device also determines the carrier information of the M control resource sets according to the configuration information sent by the network device.
  • Step 505 The terminal device determines the first number of carriers of the first grouping information. Wherein, the first number is associated with grouping information and carrier information of M control resource sets.
  • the terminal device determines the number of carriers corresponding to the control resource sets of each grouping information according to the grouping information and carrier information of the M control resource sets.
  • the terminal device determines the first number of carriers containing the first grouping information according to the CORESET with the first grouping information.
  • the first grouping information is any grouping information in the grouping information of the M control resource sets
  • the U control resource sets of the first grouping information when the U control resource sets are all in the same carrier, The number of carriers corresponding to U control resource sets is 1; when U control resource sets are in two carriers, the number of carriers corresponding to U control resource sets is 2.
  • Step 506 The terminal device determines the number of bits in the downlink assignment indication (DAI) field of the DCI carried by the U control resource sets according to the first quantity.
  • DAI downlink assignment indication
  • the terminal device determines that the number of bits in the DAI field of the DCI carried by the U control resource sets is the first value. For example, when DAI is total DAI, the first number is A value is 2. When DAI includes total DAI and counter DAI, the first value is 4; when the first number corresponding to U control resource sets is equal to 1, the terminal device determines the DAI field of DCI carried by U control resource sets The number of bits in is the second value (for example, the number of bits is 4); the first value is greater than the second value, for example, when DAI is total DAI, the first value is 0, and when DAI includes total DAI and counter DAI, the first value Is 2.
  • the second value for example, the number of bits is 4
  • the first value is greater than the second value, for example, when DAI is total DAI, the first value is 0, and when DAI includes total DAI and counter DAI, the first value Is 2.
  • the base station is configured with two carriers and the first carrier (CC1) is configured with two groups of CORESET, and the second carrier (CC2) is configured with two groups of CORESET, where CC1
  • the upper CORESET#1 and CORESET#2 are configured as group 1
  • CORESET#3 and CORESET#4 are configured as group 2.
  • CORESET#5 is configured as group 1
  • CORESET#6 is configured as group 2.
  • the terminal device determines that the number of carriers corresponding to group 1 is two, and the number of carriers corresponding to group 2 is two.
  • the terminal device determines the DCI corresponding to group 1, that is, the DAI in the DCI carried in CORESET#1, CORESET#2, and CORESET#5 includes total DAI, and the number of bits is 4 bits.
  • the terminal device determines the DCI corresponding to group 2, and also That is, the DAI in the DCI carried in CORESET#3, CORESET#4, and CORESET#6 also includes total DAI, and the number of bits is also 4 bits.
  • the base station is configured with two carriers and the first carrier (CC1) is configured with two groups of CORESET, and the second carrier (CC2) is configured with one group of CORESET, where CC1 CORESET#1 and CORESET#2 are configured as group 1, CORESET#3 and CORESET#4 are configured as group 2; CORESET#5 and CORESET#6 on the second carrier are configured as group 1.
  • the terminal device determines that the number of carriers corresponding to group 1 is 2, and the number of carriers corresponding to group 2 is 1.
  • the terminal device determines the DCI corresponding to group 1, that is, the DAI in the DCI carried in CORESET#1, CORESET#2, CORESET#5, CORESET#6 includes total DAI, the number of bits is 4 bits, and the terminal device determines that group 2 corresponds
  • the DCI that is, the DAI in the DCI carried in CORESET#3 and CORESET#4 does not include total DAI, and the number of bits is also 2 bits.
  • the network device determines the first number of carriers of the first grouping information, and the first number is associated with the grouping information and carrier information of the M control resource sets, and then according to the carrier number of the first grouping information The number is determined by determining the number of bits of the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information. After that, the network device sends the DCI including the number of bits of the DAI field to the terminal device. In this way, the network device and the terminal device have the same understanding of the DCI of the number of bits in the DAI field, so that the reliability of subsequent transmissions can be guaranteed.
  • the terminal device determines the second number of carriers of the second grouping information according to the grouping information and carrier information of the M control resource sets; then, according to the second number, determines the V corresponding to the second grouping information.
  • the terminal device detects the DCI carried by the V control resource sets according to the number of bits in the DAI field of the DCI carried by the V control resource sets corresponding to the second grouping information; the terminal device sends the second feedback information of the second downlink data, where the first The second downlink data is DCI scheduling carried by V control resource sets.
  • the terminal device is configured in an independent feedback mode, that is, the terminal device detects U control resources according to the number of bits in the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information The DCI carried by the aggregate.
  • the terminal device sends the first feedback information of the first downlink data, where the first downlink data is scheduled by the DCI carried by the U control resource sets. It is understandable that the first downlink data may be one or more, and the first downlink data may be scheduled by one or more DCI carried in one or more of the U control resource sets. The embodiments of this application are not limited.
  • the terminal device detects the DCI carried by the V control resource sets according to the number of bits in the DAI field of the DCI carried by the V control resource sets corresponding to the second grouping information; the terminal device sends the second downlink data The second feedback information, where the second downlink data is scheduled by DCI carried by V control resource sets.
  • the second downlink data may be one or more, and the second downlink data may be scheduled by one or more DCI carried in one or more of the V control resource sets.
  • the embodiments of this application are not limited.
  • the uplink feedback resources of the downlink data scheduled by the DCI carried by the U control resource sets are different from the uplink feedback resources of the downlink data scheduled by the DCI carried by the V control resource sets within the same time unit. That is, the first feedback information and the second feedback information are respectively carried on different uplink feedback resources within the same time unit. That is to say, the terminal equipment respectively sends the downlink data scheduled by the DCI carried by different groups to ensure that the feedback information of the downlink data scheduled by the DCI carried by the different groups is independently fed back.
  • the network device issues HARQ-ACK feedback mode indication signaling, and the HARQ-ACK feedback mode indication signaling is used to indicate whether the HARQ-ACK feedback adopts independent feedback or joint feedback.
  • the HARQ-ACK feedback mode is indicated as joint feedback, that is, HARQ-ACK feedback supports U control resource sets corresponding to the first grouping information and the data scheduled by the DCI carried in the V control resource sets corresponding to the second grouping information correspond to
  • the HARQ-ACK feedback is jointly carried on the same uplink resource, and the terminal device determines the DAI field of the DCI carried in the U control resource sets corresponding to the first grouping information and the V control resource sets corresponding to the second grouping information according to the third number
  • the third number is the number of carriers containing the first grouping information and/or the second grouping information.
  • FIG. 8 shows a schematic structural diagram of a communication device 800.
  • the communication device 800 can implement the functions of the terminal device mentioned above.
  • the communication device 800 may be the terminal device described above, or may be a chip set in the terminal device described above.
  • the communication device 800 may include a processor 801 and a transceiver 802.
  • the processor 801 may be used to execute step 304 in the embodiment shown in FIG. 3, and/or to support other processes of the technology described herein, for example, it may execute other processes performed by the terminal device described above. All other processes or part of other processes other than the sending and receiving process.
  • the transceiver 802 can be used to perform 303 in the embodiment shown in FIG. 3, and/or other processes used to support the technology described herein, for example, it can perform all the transceiving processes performed by the terminal device described above. Or part of the sending and receiving process.
  • the transceiver 802 is configured to receive first indication information sent by a network device.
  • the first indication information is used to indicate grouping information of N control resource sets in M control resource sets, where N is less than M, and N and M are greater than Or a positive integer equal to 1.
  • the processor 801 is configured to determine, according to the first indication information, grouping information of the K control resource sets other than the N control resource sets among the M control resource sets.
  • the terminal device determines that the grouping information of the K control resource sets is the same as the grouping information of the N control resource sets ;
  • the terminal device determines that the grouping information of the K control resource sets is different from the grouping information of the N control resource sets.
  • the grouping information of the first control resource set in the control resource set is the same, wherein the grouping information of the first control resource set is the minimum value or the maximum value of the grouping information of the N control resource sets.
  • the M control resource sets belong to the same carrier or the same BWP.
  • the terminal device determines the control resources of the same carrier that are not indicated by the grouping information
  • the grouping information of the set is the same as the grouping information of the L control resource sets
  • the terminal device determines that the control resource sets in the same carrier have different grouping information.
  • the control resource set indicating the grouping information is the same as the grouping information of the second control resource set; where L is less than N, L is a positive integer greater than or equal to 1, and the grouping information of the second control resource set is the L control The minimum or maximum value in the grouping information of the resource set.
  • the M control resource sets are control resource sets in a carrier configured through RRC signaling or are control resource sets in a carrier that are instructed to be activated through MAC CE signaling.
  • the M control resource sets may all be control resource sets in activated carriers, or part of them may be control resource sets in activated carriers, and the rest may be control resource sets in inactive carriers.
  • the terminal device receives second indication information, where the second indication information is used to indicate carrier information of the M control resource sets; the method further includes:
  • the terminal device determines the first number of carriers of the first grouping information; wherein, the first grouping information is any one of the grouping information of the M control resource sets, and then, the terminal device determines the carrier corresponding to the first grouping information according to the first number
  • the number of bits in the downlink allocation index DAI field of the DCI carried by U control resource sets where U is less than M, and U and M are positive integers greater than or equal to 1.
  • the terminal device can still determine the number of bits in the DAI field of the DCI carried by the control resource set according to the grouping information and carrier information of all or part of the control resource set when the grouping information of the control resource set is default. , To ensure that terminal equipment and network equipment have consistent understanding of the number of DAI bits, and increase transmission reliability. The terminal device only determines the number of bits of the DCI carried in the control resource set under the grouping information according to the number of carriers containing the same grouping information, thereby reducing the overhead of the DCI.
  • the first indication information and the second indication information may be carried in the same message or in different messages.
  • the terminal device determines that the number of bits in the DAI field of the DCI carried by U control resource sets is the first value; when the first number is equal to 1, the terminal device determines The number of bits of the DAI field of the DCI carried by the U control resource sets is the second value; the first value is greater than the second value. For example, when the number of carriers including the first grouping information is 2, the terminal device determines that the number of bits in the total DAI field in the DCI carried by the control resource set corresponding to the first grouping information is 2, and the number of carriers for the first grouping information is 1. The terminal device determines that the number of bits in the total DAI field in the DCI carried by the control resource set corresponding to the first grouping information is 0.
  • the terminal device determines the number of bits of the downlink data feedback information and the bit position of each downlink data feedback information in the feedback information sequence according to DAI.
  • DAI may include counter DAI.
  • DAI may also include total DAI, where counter DAI is used to identify the order of the DCI, thereby indicating that the data scheduled by the DCI is in the feedback information sequence.
  • Bit position, total DAI is used to identify the number of DCIs corresponding to the currently existing data to be fed back, thereby indicating the number of bits in the feedback information sequence.
  • the terminal device detects the DCI carried by the U control resource sets according to the number of bits in the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information.
  • the terminal device sends the first feedback information of the first downlink data, where the first downlink data is scheduled by DCI carried by at least one of the U control resource sets.
  • the terminal device generates the first feedback information sequence according to the DCI carried by at least one of the U control resource sets.
  • the terminal device only determines the number of bits of the DCI carried in the control resource set under the grouping information according to the number of carriers containing the same grouping information, thereby reducing the overhead of the DCI.
  • the terminal device determines the second number of carriers including the second grouping information according to the grouping information and carrier information of the M control resource sets; where the second grouping information is the grouping information of the M control resource sets Any one of the grouping information, and the second grouping information is different from the first grouping information; the terminal device determines the downlink allocation index DAI field bits of the DCI carried by the V control resource sets corresponding to the second grouping information according to the second number.
  • V is less than M, and V is a positive integer greater than or equal to 1; the terminal device detects the number of bits carried by the V control resource sets according to the number of bits in the DAI field of the DCI carried by the V control resource sets corresponding to the second grouping information DCI.
  • the uplink feedback resources of the downlink data scheduled by the DCI carried by the U control resource sets are different from the uplink feedback resources of the downlink data scheduled by the DCI carried by the V control resource sets within the same time unit .
  • the terminal device sends second feedback information of the second downlink data, where the second downlink data is scheduled by at least one DCI carried by V control resource sets.
  • the first feedback information and the second feedback information are respectively carried on different uplink resources within the same time unit.
  • the first feedback information and the second feedback information may be carried on two PUCCH resources that are time-division or frequency-division in the same slot.
  • the terminal device determines the HARQ-ACK feedback information corresponding to the DCI-scheduled downlink data carried on the control resource set configured with the same grouping information, generates the HARQ-ACK sequence, and determines the uplink resource occupied by the sequence .
  • the terminal device generates HARQ-ACK sequences for the HARQ-ACK feedback information corresponding to the DCI carried on the control resource sets configured with different grouping information, and respectively determines the uplink resources occupied by each HARQ-ACK sequence.
  • the processor 801 of the communication device shown in FIG. 8 may be used to execute steps 504 to 506 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, may execute All other processes or some of the other processes performed by the terminal device described in the foregoing, except for the receiving and sending process.
  • the transceiver 802 can be used to execute 503 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, it can execute all the transceiving processes performed by the terminal device described above. Or part of the sending and receiving process.
  • the transceiver 802 is used to receive configuration information.
  • the processor 801 is configured to determine the grouping information of the M control resource sets according to the configuration information, and then determine the first number of carriers of the first grouping information according to the grouping information and carrier information of the M control resource sets; wherein, the first grouping The information is any one of the grouping information of the M control resource sets; the terminal device determines the number of bits in the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information according to the number of carriers of the first grouping information; where , U is less than M, U and M are positive integers greater than or equal to 1.
  • the terminal device determines that the number of bits in the DAI field of the DCI carried by the U control resource sets is the first value
  • the terminal device determines that the number of bits of the DAI field of the DCI carried by the U control resource sets is the second value; the first value is greater than the second value.
  • FIG. 9 shows a schematic structural diagram of a communication device 900.
  • the communication device 900 can implement the functions of the network device mentioned above.
  • the communication device 900 may be the network device described above, or may be a chip set in the network device described above.
  • the communication device 900 may include a processor 901 and a transceiver 902.
  • the processor 901 may be used to perform step 301 in the embodiment shown in FIG. 3, and the transceiver 902 may be used to perform step 302 in the embodiment shown in FIG. 3.
  • the grouping information of the N control resource sets is the same, the grouping information of the N control resource sets is the same as the grouping information of the K control resource sets.
  • the grouping information of the first control resource set in the N control resource sets is different from the grouping information of the first control resource set.
  • the grouping information of the K control resource sets is the same, where the grouping information of the first control resource set is the minimum value or the maximum value of the grouping information of the N control resource sets.
  • the M control resource sets belong to the same carrier or the same BWP.
  • the grouping information of the L control resource sets is the same as the grouping information of the L control resource sets in the same carrier.
  • the control resource sets indicating the grouping information are the same.
  • the second control resource in the L control resource sets is the same as the grouping information of the control resource set for which grouping information is not indicated in the same carrier; where L is less than N, and the grouping information of the second control resource set is the grouping information of the L control resource sets The minimum or maximum value in the grouping information.
  • the M control resource sets are control resource sets in a carrier configured through RRC signaling or MAC CE signaling.
  • the processor 901 of the communication device shown in FIG. 9 may be used to execute step 501 in the embodiment shown in FIG. 5 or execute all other processes or parts of other processes except for the transceiving process, and/or use
  • step 501 in the embodiment shown in FIG. 5
  • all other processes or part of other processes performed by the terminal device described above except for the receiving and sending process can be executed.
  • the transceiver 902 can be used to execute 502 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, it can execute all the transceiving processes performed by the terminal device described above. Or part of the sending and receiving process.
  • the processor 901 is configured to determine M control resource sets.
  • the transceiver 902 is configured to send configuration information of M control resource sets, and the configuration information includes grouping information and carrier information of the M control resource sets.
  • the processor 901 is further configured to determine a first number of carriers containing the first grouping information, where the first number is associated with the grouping information and carrier information of the M control resource sets; where the first grouping information is the M control resource sets Any one of the grouping information; the terminal device determines the number of bits in the DAI field of the DCI carried by the U control resource sets corresponding to the first grouping information according to the first number; where U is less than M, and U and M are greater than or equal to A positive integer of 1.
  • the association of the first quantity with the grouping information and carrier information of the M control resource sets in the embodiments of the present application may specifically refer to that the network device determines the first quantity according to the grouping information and carrier information of the M control resource sets; Or, it may mean that the network device first determines the first number, and then determines the grouping information and carrier information of the M control resource sets according to the first number.
  • the embodiment of the present application does not specifically limit the sequence or the causality.
  • the transceiver 902 is also used to send DCI to the terminal device.
  • the network device determines that the number of bits in the DAI field of the DCI carried by the U control resource sets is the first value
  • the network device determines that the number of bits of the DAI field of the DCI carried by the U control resource sets is the second number; the first number is greater than the second number.
  • the transceiver 802 in FIG. 8 may be implemented by the transceiver 1002 in FIG. 10, and the processor 801 in FIG. 8 may be implemented by the processing module 1001 in FIG. The examples will not repeat them one by one.
  • the above-mentioned transceiver 902 in FIG. 9 may be implemented by the transceiver 1102 in FIG. 11, and the processor 901 in FIG. 9 may be implemented by the processing module 1101 in FIG. The examples will not repeat them one by one.
  • the embodiment of the present application also provides a computer-readable storage medium on which some instructions are stored. When these instructions are called and executed by a computer, the computer can complete the above method embodiments and method implementations. Examples of methods involved in any one of the possible designs.
  • the computer-readable storage medium is not limited. For example, it may be RAM (random-access memory, random access memory), ROM (read-only memory, read-only memory), and so on.
  • the present application also provides a computer program product that can complete the method embodiment and the method involved in any possible design of the above method embodiment when the computer program product is invoked and executed by a computer.
  • the present application also provides a chip, which may include a processor and an interface circuit, for completing the foregoing method embodiment and any one of the possible implementations of the method embodiment.
  • a chip which may include a processor and an interface circuit, for completing the foregoing method embodiment and any one of the possible implementations of the method embodiment.
  • Method where "coupled” means that two components are directly or indirectly combined with each other. This combination can be fixed or movable. This combination can allow fluid, electricity, electrical signals or other types of signals to be connected between the two components. Communicate between the two components.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor.
  • the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other storage medium in the art.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium can be arranged in an ASIC, and the ASIC can be arranged in a terminal device.
  • the processor and the storage medium may also be provided in different components in the terminal device.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

一种通信方法及装置，该方法包括：终端设备接收第一指示信息，第一指示信息用于指示M个控制资源集合中的N个控制资源集合的分组信息，N小于M，N和M为大于或等于1的正整数；终端设备根据第一指示信息，确定M个控制资源集合中除了N个控制资源集合之外的K个控制资源集合的分组信息。采用本申请的方法及装置，可实现终端设备与网络设备对控制资源集合的分组信息理解一致，进而终端设备与网络设备对控制资源集合承载的DCI的DAI字段的比特数理解一致，增加DCI检测鲁棒性。

Description

一种通信方法及装置 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
在第五代(5th Generation，5G)通信系统的新空口(New Radio，NR)标准中，下行传输资源被分为控制区域和数据区域。其中，控制区域用于传输控制信道，数据区域用于传输数据信道。控制信道承载的控制信息包含用于指示数据信道所使用的资源块(resource block，RB)在数据区域的时域和频域位置，数据信道用于承载下行数据或上行数据。
为了提高终端设备盲检控制信道的效率，NR标准提出了控制资源集合(control resource set，CORESET)的概念。即在控制区域为每个终端设备划分一个或多个控制资源集合。基站可以在终端设备对应的任一控制资源集合上，向终端设备发送控制信道，例如发送下行控制信息(downlink control information，DCI)。为了使得终端设备分别将来自不同站点的数据的反馈信息分别反馈给不同站点，现有技术引入了CORESET分组信息指示机制。在某一些场景下，基站向用户设备(user equipment，UE)发送的CORESET的配置信息中可能存在部分CORESET的分组信息被缺省，因此如何确保基站和UE对于CORESET的分组信息理解一致，从而使得基站和终端设备对齐理解反馈信息的序列，是亟需解决的问题。
发明内容
本申请提供一种通信方法及装置，该方法用以实现网络设备和终端设备对于CORESET的分组信息理解一致。
第一方面，本申请实施例提供一种通信方法，该方法包括：终端设备接收第一指示信息，第一指示信息用于指示M个控制资源集合中的N个控制资源集合的分组信息，N小于M，N和M为大于或等于1的正整数；然后终端设备根据第一指示信息，确定M个控制资源集合中除了N个控制资源集合之外的K个控制资源集合的分组信息，K为大于或等于1的正整数。
本申请实施例中，终端设备依据被指示了分组信息的控制资源集合对应的分组信息确定未被指示分组信息的控制资源集合对应的分组信息，一方面可以减少信令开销，确保基站具备配置分组信息的灵活度，另一方面可以保证终端设备按照上述方法确定的分组信息与网络侧一致。
在一种可能的设计中，M个控制资源集合属于同一个载波或同一个BWP，在N个控制资源集合的分组信息相同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合的分组信息相同；在N个控制资源集合中至少两个控制资源集合的分组信息不同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合中的第一控制资源集合的分组信息相同，其中，第一控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值或最大值。
在一种可能的设计中，M个控制资源集合属于不同载波，当该N个控制资源集合为相同的分组信息时，终端设备确定未被指示分组信息的K个控制资源集合与该N个控制资源集合的分组信息相同；当该N个控制资源集合为不同的分组信息时，终端设备确定未被指示分组信息的K个控制资源集合与第二控制资源集合的分组信息相同，其中，第二控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值或者最大值。
在另一种可能的设计中，M个控制资源集合属于不同载波，当同一载波中的被指示分组信息的L个控制资源集合为相同的分组信息时，终端设备确定同一载波中的未被指示分组信息的控制资源集合与L个控制资源集合的分组信息相同；当同一载波中的被指示分组信息的L个控制资源集合存在至少两个控制资源集合的分组信息不同时，终端设备确定同一载波中的未被指示分组信息的控制资源集合与第二控制资源集合的分组信息相同；其中，L为小于N的正整数，第二控制资源集合的分组信息为L个控制资源集合的分组信息中的最小值或最大值，L个控制资源集合为N个控制资源集合的部分控制资源集合。
在一种可能的设计中，M个控制资源集合的分组信息为{0,1}中的一个或者多个。
上述申请实施例中，终端设备按照上述方法可以确保与网络设备对分组信息的理解一致，从而使得基站和终端设备对于生成反馈信息的比特数理解一致，增加传输的可靠性和资源利用效率。
在一种可能的设计中，M个控制资源集合为通过RRC信令配置的载波内的控制资源集合或者为通过MAC CE信令指示激活的载波中的控制资源集合。也就是说，M个控制资源集合可能全是激活载波内的控制资源集合，也可能部分是激活载波内的控制资源集合，其余部分是未激活载波内的控制资源集合。
在一种可能的实施例中，终端设备接收第二指示信息，第二指示信息用于指示M个控制资源集合的载波信息；该方法还包括：
终端设备确定第一分组信息的载波的第一数量；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个，然后，终端设备根据第一数量，确定第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
本申请实施例中，终端设备在控制资源集合的分组信息缺省的情况下，仍能够根据全部或者部分控制资源集合的分组信息和载波信息，确定控制资源集合承载的DCI的DAI字段的比特数，确保终端设备和网络设备对DAI的比特数理解一致，增加传输可靠性。终端设备仅根据包含同一个分组信息的载波的数量确定该分组信息下控制资源集合中承载的DCI的比特数，从而减小DCI的开销。
在一种可能的实施例中，第一指示信息和第二指示信息可以携带在同一条消息中，也可以携带在不同的消息中。
在一种可能的实施例中，当第一数量大于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；当第一数量等于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。例如，包括第一分组信息的载波数量为2时，终端设备确定第一分组信息对应的控制资源集合承载的DCI中的总数DAI(total DAI)字段的比特数为2，第一分组信息的载波数量为1时，终端设备确定第一分组信息对应的控制资源集合承载的DCI中的total DAI字段的比特数为0。
在一种可能的实施例中，终端设备根据DAI确定下行数据反馈信息的比特数，以及各个下行数据反馈信息在反馈信息序列中的比特位置。具体的，DAI中可以包括counter DAI，当载波数量大于1时，DAI中还可以包括total DAI，其中，counter DAI用于标识该DCI的排序，从而指示该DCI调度的数据在反馈信息序列中的比特位置，total DAI用于标识当前已存在的待反馈的数据对应的DCI数量，从而指示反馈信息序列的比特位数。
在一种可能的实施例中，终端设备根据第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数，检测U个控制资源集合承载的DCI。
在一种可能的实施例中，终端设备发送第一下行数据的第一反馈信息，其中，第一下行数据是U个控制资源集合中的至少一个承载的DCI调度的。
在一种可能的实施例中，终端设备根据U个控制资源集合中的至少一个承载的DCI生成第一反馈信息序列。
终端设备仅根据包含同一个分组信息的载波的数量确定该分组信息下控制资源集合中承载的DCI的比特数，从而减小DCI的开销。
在一种可能的实施例中，终端设备根据M个控制资源集合的分组信息和载波信息，确定包括第二分组信息的载波的第二数量；其中，第二分组信息为M个控制资源集合的分组信息中的任意一个，且第二分组信息不同于第一分组信息；终端设备根据包括第二数量，确定第二分组信息对应的V个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，V小于M，V为大于或等于1的正整数；终端设备根据第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数，检测V个控制资源集合承载的DCI。
在一种可能的实施例中，U个控制资源集合承载的DCI所调度的下行数据的上行反馈资源与V个控制资源集合承载的DCI所调度的下行数据的上行反馈资源在同一时间单位内不同。
在一种可能的实施例中，终端设备发送第二下行数据的第二反馈信息，其中，第二下行数据是V个控制资源集合承载的至少一个DCI调度的。
在一种可能的实施例中，第一反馈信息和第二反馈信息分别承载于同一时间单位内的不同上行资源上。具体的，在一个时隙slot内，第一反馈信息和第二反馈信息可以承载于同一个slot内时分的或者频分的两个PUCCH资源上。
在一种可能的实施例中，终端设备确定配置相同分组信息的控制资源集合上承载的DCI调度的下行数据对应的HARQ-ACK反馈信息，生成HARQ-ACK序列并确定该序列所占的上行资源。并且，终端设备针对配置不同分组信息的控制资源集合上承载的DCI对应的HARQ-ACK反馈信息分别生成HARQ-ACK序列并分别确定每个HARQ-ACK序列所占的上行资源。
第二方面，本申请实施例提供一种通信方法，该方法包括：终端设备接收网络设备发送的M个控制资源集合的配置信息，其中，配置信息中包括M个控制资源集合的载波信息，以及全部或者部分控制资源集合的分组信息；终端设备根据配置信息，确定M个控制资源集合的分组信息和载波信息。终端设备根据M个控制资源集合中部分或者全部控制资源集合的分组信息和载波信息，确定包含第一分组信息的载波的第一数量；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个，然后，终端设备根据第一数量，确定第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
本申请实施例中，终端设备仅根据包含同一个分组信息的载波的数量确定该分组信息下控制资源集合中承载的DCI的比特数，从而减小DCI的开销。同时，终端设备在部分控制资源集合的分组信息缺省的情况下，也能够确定每个分组信息对应的控制资源集合所承载DCI中DAI字段的比特数，确保终端设备和网络设备对DAI的比特数理解一致，增加传输可靠性。
在一种可能的实施例中，当包括第一数量大于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；当第一数量等于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。例如，第一数量为2时，终端设备确定第一分组信息对应的控制资源集合承载的DCI中的total DAI字段的比特数为2，第一数量为1时，终端设备确定第一分组信息对应的控制资源集合承载的DCI中的total DAI字段的比特数为0。
在一种可能的实施例中，终端设备根据DAI确定下行数据反馈信息的比特数，以及各个下行数据反馈信息在反馈信息序列中的比特位置。具体的，DAI中可以包括counter DAI，当载波数量大于1时，DAI中还可以包括total DAI，其中，counter DAI用于标识该DCI的排序，从而指示该DCI调度的数据在反馈信息序列中的比特位置，total DAI用于标识当前已存在的待反馈的数据对应的DCI数量，从而指示反馈信息序列的比特位数。
在一种可能的实施例中，终端设备根据第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数，检测U个控制资源集合承载的至少一个DCI。
在一种可能的实施例中，终端设备发送第一下行数据的第一反馈信息，其中，第一下行数据是U个控制资源集合中的至少一个承载的DCI调度的。
在一种可能的实施例中，终端设备根据U个控制资源集合中承载的DCI生成第一反馈信息序列。
终端设备根据包含同一个分组信息的载波的数量确定该分组信息下控制资源集合中承载的DCI的比特数，从而减小DCI的开销。
在一种可能的实施例中，终端设备确定第二分组信息的载波的第二数量；其中，第二分组信息为M个控制资源集合的分组信息中不同于第一分组信息的任意一个；终端设备根据第二数量，确定第二分组信息对应的V个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，V小于M，V为大于或等于1的正整数；终端设备根据第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数，检测V个控制资源集合承载的至少一个DCI。
在一种可能的实施例中，U个控制资源集合承载的DCI所调度的下行数据的上行反馈资源与V个控制资源集合承载的DCI所调度的下行数据的上行反馈资源在同一时间单位内不同。
在一种可能的实施例中，终端设备发送第二下行数据的第二反馈信息，其中，第二下行数据是V个控制资源集合承载的DCI调度，第一反馈信息和第二反馈信息分别承载于同一时间单位内的不同上行资源上。具体的，在一个时隙slot内，第一反馈信息和第二反馈信息可以承载于不同的PUCCH资源上。
在一种可能的实施例中，终端设备确定配置相同分组信息的控制资源集合上承载的DCI调度的下行数据对应的HARQ-ACK反馈信息，生成HARQ-ACK序列并确定该序列所占的上行资源。并且，终端设备针对配置不同分组信息的控制资源集合上承载的DCI对 应的HARQ-ACK反馈信息分别生成HARQ-ACK序列并分别确定每个HARQ-ACK序列所占的上行资源。
第三方面，本申请实施例提供一种通信方法，该方法包括：网络设备确定M个控制资源集合；网络设备向终端设备发送第一指示信息，第一指示信息包括M个控制资源集合中的N个控制资源集合的分组信息，N小于M，N和M为大于或等于1的正整数；其中，N个控制资源集合的分组信息与M个控制资源集合中除了N个控制资源集合之外的K个控制资源集合的分组信息相关。
本申请实施例中，网络设备在配置信息中携带部分控制资源集合的分组信息，一方面可以减少信令开销，另一方面N个控制资源集合的分组信息与K个控制资源集合的分组信息相关可以保证终端设备与网络侧对分组信息的理解一致。
在一种可能的实施例中，在N个控制资源集合的分组信息相同时，N个控制资源集合的分组信息与K个控制资源集合的分组信息相同；在N个控制资源集合中至少两个控制资源集合的分组信息不同时，N个控制资源集合中的第一控制资源集合的分组信息与K个控制资源集合的分组信息相同，其中，第一控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值或最大值。
在一种可能的实施例中，M个控制资源集合属于同一个载波或同一个BWP。
在一种可能的实施例中，当同一载波中的被指示分组信息的L个控制资源集合为相同的分组信息时，L个控制资源集合的分组信息与同一载波中的未被指示分组信息的控制资源集合相同；
当同一载波中的被指示分组信息的L个控制资源集合存在至少两个控制资源集合的分组信息不同时，L个控制资源集合中的第二控制资源集合的分组信息与同一载波中的未被指示分组信息的控制资源集合的分组信息相同；其中，L小于N，第二控制资源集合的分组信息为L个控制资源集合的分组信息中的最小值或最大值。
上述申请实施例中，终端设备按照上述方法可以确保与网络设备对分组信息的理解一致，增加后续DCI检测的鲁棒性。
在一种可能的设计中，M个控制资源集合为通过RRC信令或者MAC CE信令配置的载波中的控制资源集合。也就是说，M个控制资源集合可能全是激活的控制资源集合，也可能部分是激活的控制资源集合。
在一种可能的实施例中，该方法还包括：
网络设备确定第一分组信息的载波的第一数量；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个；第一数量与控制资源集合的分组信息和载波信息相关联。
网络备根据第一数量，确定第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
在一种可能的实施例中，网络设备根据U个控制资源集合承载的DCI的DAI字段的比特数，在U个控制资源集合中的一个或多个中发送DCI。
本申请实施例中，网络设备确定控制资源集合承载的DCI的DAI字段的比特数，第一数量与控制资源集合的分组信息和载波信息相关联，确保终端设备和网络设备对DAI的比特数理解一致，增加传输可靠性。
在一种可能的实施例中，网络设备发送第二指示信息，第二指示信息用于指示M个控制资源集合的载波信息。载波信息可用于指示第一数量，或者用于指示终端设备确定第一 数量。
在一种可能的实施例中，第一指示信息和第二指示信息可以携带在同一条消息中，也可以在不同消息中。
在一种可能的实施例中，当第一数量大于1时，网络设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；当第一数量等于1时，网络设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。例如，第一数量为2时，终端设备确定total DAI字段的比特数为2，第一数量为1时，终端设备确定total DAI字段的比特数为0。
第四方面，本申请实施例提供一种通信方法，该方法包括：网络设备确定M个控制资源集合，网络设备根据M个控制资源集合中的部分或者全部控制资源集合的分组信息和载波信息，确定包含第一分组信息的载波的第一数量；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个。
然后，网络备根据第一数量，确定第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
本申请实施例中，网络设备确定控制资源集合承载的DCI的DAI字段的比特数与控制资源集合的分组信息和载波信息相关联，确保终端设备和网络设备对DAI的比特数理解一致，增加传输可靠性，同时，只有在包含同一个分组信息的载波数量大于1的情况下，该分组信息对应的DCI中包括total DAI，从而降低DCI的开销。
在一种可能的实施例中，当第一数量大于1时，网络设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；当第一数量等于1时，网络设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。例如，第一数量为2时，终端设备确定total DAI字段的比特数为2，第一数量为1时，终端设备确定total DAI字段的比特数为0。
在一种可能的实施例中，网络设备根据U个控制资源集合承载的DCI的DAI字段的比特数，在U个控制资源集合中的一个或多个中发送DCI。
第五方面，本申请实施例提供一种通信装置，所述通信装置包括处理器，所述处理器与存储器耦合，其中：存储器用于存储指令；处理器用于根据执行存储器存储的指令，以执行上述第一方面或第一方面中任一种可能的设计中的方法。可选的，所述通信装置还可以包括所述存储器。可选的，所述通信装置还可以包括收发器，用于支持所述通信装置进行上述方法中的信息发送和/或接收。可选的，该通信装置可以是终端设备，也可以是终端设备中的装置，如芯片或者芯片系统，其中所述芯片系统包含至少一个芯片，所述芯片系统还可以包括其他电路结构和/或分立器件。
第六方面，提供一种通信装置，该装置可以是终端设备，也可以是终端设备中的装置，或者是能够和终端设备匹配使用的装置。一种设计中，该装置可以包括执行第一方面或第二方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。示例性地，该装置可以包括收发模块和处理模块，且收发模块和处理模块可以执行上述第一方面或第二方面任一种设计示例中的相应功能，关于收发模块和处理模块的功能可参考第一方面或第二方面的记载，在此不再一一说明。
第七方面，提供一种通信装置，该装置可以是网络设备，也可以是网络设备中的装置， 或者是能够和网络设备匹配使用的装置。一种设计中，该装置可以包括执行第三方面或第四方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。示例性地，该装置可以包括收发模块，且收发模块用于执行上述第三方面或第四方面任一种设计示例中的相应功能。关于处理模块以及收发模块的具体功能，可参见上述第三方面或第四方面的记载，在此不再说明。
第八方面，本申请实施例还提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行第一方面、第一方面任一种可能设计、第二方面或第二方面任一种可能设计、第三方面或第三方面任一种可能设计、第四方面或第四方面任一种可能设计的方法。
第九方面，本申请实施例还提供一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现第一方面、第一方面任一种可能设计、第二方面或第二方面任一种可能设计、第三方面或第三方面任一种可能设计、第四方面或第四方面任一种可能设计的方法。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第十方面，本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行第一方面、第一方面任一种可能设计、第二方面或第二方面任一种可能设计、第三方面或第三方面任一种可能设计、第四方面或第四方面任一种可能设计的方法。
第十一方面，本申请实施例提供了一种系统，所述系统包括第四方面或者第五方面所述的装置。
附图说明
图1A至图1B为本申请实施例适用的通信场景示意图；
图2A至图2D为本申请实施例提供的动态HARQ-ACK码分生成机制示意图；
图3为本申请实施例提供的一种通信方法示意图；
图4A至图4I为本申请实施例提供的在分组信息确定情形示意图；
图5为本申请实施例提供的另一种通信方法示意图；
图6和图7为本申请实施例提供的一种DCI的DAI比特数确定情形示意图；
图8为本申请实施例提供的一种通信装置结构示意图；
图9为本申请实施例提供的一种通信装置结构示意图；
图10为本申请实施例提供的一种通信装置结构示意图；
图11为本申请实施例提供的一种通信装置结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统，全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统，未来的第五代(5th Generation，5G)系统，如NR，及未来的通信系统，如6G系统等。
本申请将围绕可包括多个设备、组件、模块等的系统来呈现各个方面、实施例或特征。 应当理解和明白的是，各个系统可以包括另外的设备、组件、模块等，并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外，还可以使用这些方案的组合。
另外，在本申请实施例中，“示例的”一词用于表示作例子、例证或说明。本申请中被描述为“示例”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，使用示例的一词旨在以具体方式呈现概念。
本申请实施例中，信息(information)，信号(signal)，消息(message)，信道(channel)有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。“的(of)”，“相应的(corresponding，relevant)”和“对应的(corresponding)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。
应理解，本文中字符“/”，一般表示前后关联对象是一种“或”的关系，但也可能表示的是一种“和/或”的关系，具体可参考前后文进行理解。
本申请实施例描述的网络架构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。
本申请实施例既可以应用于时分双工(time division duplex，TDD)的场景，也可以适用于频分双工(frequency division duplex，FDD)的场景。
本申请实施例既可以应用在传统的典型网络中，也可以应用在未来的以UE为中心(UE-centric)的网络中。UE-centric网络引入无小区(Non-cell)的网络架构，即在某个特定的区域内部署大量小站，构成一个超级小区(Hyper cell)，每个小站为Hyper cell的一个传输点(Transmission Point，TP)或TRP，并与一个集中控制器(controller)相连。当UE在Hyper cell内移动时，网络侧设备时为UE选择新的sub-cluster(子簇)为其服务，从而避免真正的小区切换，实现UE业务的连续性。其中，网络侧设备包括无线网络设备。
本申请实施例中部分场景以无线通信网络中NR网络的场景为例进行说明，应当指出的是，本申请实施例中的方案还可以应用于其他无线通信网络中，相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。
为便于理解本申请实施例，首先以图1A中示出的通信系统为例详细说明适用于本申请实施例的通信系统。图1A示出了适用于本申请实施例的通信方法的通信系统的示意图。为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。其中，在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
图1A为本申请所适用的一种载波聚合场景下的网络架构示意图，该网络架构包括第一网络设备100、第二网络设备110和终端设备120，以及2个下行载波单元：CC1和CC2，第一网络设备100和第二网络设备110的CC1和CC2在不同的频率上工作。
终端设备120可以是能够接收网络设备调度和指示信息的无线终端设备，无线终端设备可以是指向用户提供语音和/或数据连通性的设备，或具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。网络设备(例如宏基站)100是网络侧中一种用于发射或接收信号的实体，网络设备可以是用于与移动设备通信的设备。
另外，在本申请实施例中，网络设备为小区提供服务，终端设备通过该小区使用的通信资源(例如，频域资源，或者说频谱资源)与网络设备进行通信，该小区可以是网络设 备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据发送服务。此外，在其它可能的情况下，网络设备可以是其它为终端设备提供无线通信功能的装置。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请实施例中，为终端设备提供无线通信功能的装置称为网络设备。
图1B为本申请所适用的一种双连接(dual-connectivity，DC)场景下的网络架构示意图，该架构包括两个小区组：主小区组(master cell group，MCG)和辅小区组(secondary cell group，SCG)。其中MCG包括一个主小区(primary cell，PCell)或额外包括一个或多个辅小区(secondary cell，SCell)，SCG包括一个主辅小区(primary secondary cell，PSCell)或额外包括一个或多个SCell。管理MCG的网络设备称为主网络设备或主节点，管理SCG的网络设备称为辅网络设备或辅节点。
在5G网络的部署过程中，5G小区既可以作为宏覆盖组网(作为主网络设备)，也可以作为小站(作为辅网络设备)对现有的LTE网络进行覆盖和容量增强。无论采用哪种组网方式，双连接技术都可以用来实现LTE和5G系统的互连，从而提高整个移动网络系统的无线资源利用率，降低系统切换的时延，提高用户和系统性能。
本申请实施例中，主网络设备可以为LTE网络设备(如eNB)、5G网络设备(如gNB)或未来通信通信网络设备中的一个，辅网络设备也为LTE网络设备、5G网络设备或未来通信通信网络设备中的一个，并且主网络设备和辅网络设备可以是相同制式的网络设备，比如都是eNB，也可以是不同制式的网络设备，比如主网络设备是eNB，辅网络设备是gNB。本申请对于主网络设备和辅网络设备的通信制式不做限定。
应理解，图1A和图1B仅为便于理解而示例的简化示意图，该通信系统中还可以包括其他网络设备或者还可以包括其他终端设备，图1A和图1B中未予以画出。
本申请实施例描述的网络架构以及业务场景是为了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。
本申请实施例描述的网络架构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。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端设备，包括向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、V2X终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动 站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。
2)网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，或者例如，一种V2X技术中的网络设备为路侧单元(road side unit，RSU)。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络设备可以包括LTE系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5 th generation，5G)新无线(new radio，NR)系统中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
3)下行控制信道，例如PDCCH，或者增强的物理下行控制信道(enhanced physical downlink control channel，PDCCH)，或者是其他的下行控制信道，具体的不做限制。
4)CORESET，是指用于承载PDCCH或者DCI的物理资源。通常，每个CORESET均会对应一组参数，参数中可以包括：该CORESET的索引号，该CORESET占用的连续OFDM符号的数量，该CORESET占用的一组资源块(resource block，RB)，该CORESET的解调参考信号DMRS的准共址(Quasi-co-location QCL)假设用于辅助信号接收，等参数。同时，每个CORESET均会关联一个或者多个PDCCH候选，可以理解为，终端设备在每个PDCCH候选上执行一次DCI检测操作，通常，一次DCI检测操作会在CORESET 中的部分物理资源上执行。CORESET的配置可以通过RRC信令下发，此时的CORESET可以认为是用户特定的控制资源集合，也可以通过系统消息或者广播消息下发，例如通过SIB下发，此时的CORESET可以认为是小区特定的控制资源集合，即一个小区内的多个终端设备可以共享该CORESET。
5)本申请中的载波(component carrier，CC)，对应一个特定的频段，或者，在特定的网络架构下，也可以理解为一个虚拟小区，例如服务小区(serving cell)等。每个载波均会对应一组特定的配置参数，配置参数中包括一个或者多个部分带宽(bandwidth part，BWP)的配置信息，每个BWP均占用该载波的部分或者全部带宽，其中，BWP配置信息中包括：频域子载波间隔配置信息，BWP包括的RB数量和位置信息，以及上下行数据信道配置信息和控制信道配置信息。
具体的，下行控制信道配置信息中包括一个或者多个控制资源集合配置信息。也就是说，对于每个控制资源集合，终端设备可以根据上述配置信息确定其所在的BWP以及载波。载波对应的一组特定的配置参数均可以通过RRC信令下发，此时的载波可以认为是用户特定的载波，也可以通过系统消息或者广播消息下发，例如通过SIB下发，此时的载波可以认为是小区特定的载波，即一个小区内的多个终端设备可以共享该载波。进一步的，配置的载波可以通过MAC CE信令指示激活或者去激活，网络设备和终端设备的通信仅在激活的载波上进行。当一个载波中配置了多个BWP，网络设备需要额外下发信令指示当前该载波内激活的BWP，从而，网络设备和终端设备的通信仅在激活的BWP上进行。
6)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，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的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一信号和第二信号，只是为了区分不同的信号，而并不是表示这两种信号的内容、优先级、发送顺序或者重要程度等的不同。
为了便于理解本申请，在介绍本申请提供的通信方法前，首先对本申请涉及的以下技术特征做简要介绍。
5G移动通信系统中下行资源调度的基本时间单元是一个时隙(slot)，一个时隙由时域上的7个或14个符号组成，一个时隙可划分为控制区和数据区。其中，数据区用于发送承载下行数据的物理下行共享信道(physical downlink shared channel，PDSCH)。控制区用于发送物理下行控制信道(physical downlink control channel，PDCCH)，PDCCH用于承载下行控制信息(downlink control information，DCI)。PDSCH和PDCCH所用时频资源在频域上由1个或者多个资源块(Resource Block，RB)组成，每个RB由频域上连续的12个子载波时域上一个符号组成，其中频域上一个子载波和时域上一个符号称之为一个资源单元(Resource Element，RE)。
目前，基站会向终端设备传输PDSCH，而PDSCH一般是通过PDCCH中承载的控制 信息来调度，控制信息例如为DCI。为了正确接收PDSCH，UE需要先检测并译码DCI。PDCCH携带的DCI中包含指示PDSCH的传输信息，例如PDSCH所占的时频空域资源，即下行资源分配信息。在一个时隙的控制区中，存在一个或者多个CORESET，UE可在这一个或者多个CORESET上去检测DCI。且每个CORESET上可以执行一次或者多次DCI检测。终端设备需要根据自身实现算法接收PDSCH并根据接收PDSCH的结果确定该PDSCH的HARQ-ACK信息告知网络设备当前PDSCH是否正确接收，若PDSCH被正确译码则终端设备反馈ACK(肯定的确认)，否则终端设备反馈NACK(否定的确认)，比如该PDSCH的HARQ-ACK信息比特位置0表示NACK，比特位置1表示ACK。多个PDSCH对应的HARQ-ACK信息可以进行联合编码生成一个HARQ-ACK序列并承载于上行资源上。现有HARQ-ACK序列生成存在如下两种机制：
机制一：静态HARQ-ACK序列，或者称为静态HARQ-ACK码本的生成机制。即，终端设备基于一段时间内可能调度的PDSCH数量确定HARQ-ACK比特数，基于可能调度的PDSCH的预定义顺序，确定各个HARQ-ACK比特位与PDSCH的对应关系，从而在相应HARQ-ACK比特位上传反馈信息。该机制不依赖于基站实际下发的DCI数量，HARQ-ACK比特数采用预留的方式。
机制二：动态HARQ-ACK序列，或者称为动态HARQ-ACK码本的生成机制。即，终端设备基于检测到的DCI中DAI指示的信息，确定HARQ-ACK序列的比特数，以及各个DCI的排序，该DCI的排序对应了该DCI调度的PDSCH的反馈信息在HARQ-ACK序列中的比特位。该机制依赖于基站实际下发的DCI数量，为了使得终端设备反馈的HARQ-ACK序列的比特数以及每个比特位对应的PDSCH与基站的理解一致，基站在下发DCI时会携带DAI指示明确HARQ-ACK序列的比特数以及每个比特位对应的PDSCH。
针对图1A和图1B所示的多基站通信场景，终端设备存在如下两种HARQ-ACK信息反馈方式，其中，承载HARQ-ACK信息的上行资源以PUCCH为例。
方式一：统一反馈多个基站的HARQ-ACK信息，也就是说多个基站下发N个PDSCH，UE统一反馈与N个PDSCH对应的HARQ-ACK信息。该HARQ-ACK信息承载于一个PUCCH资源上，并且该HARQ-ACK信息对应一个HARQ-ACK序列，即该HARQ-ACK信息是联合编码的。
方式二：独立反馈每个基站的HARQ-ACK信息。假设说，两个基站向终端设备发送了N个PDSCH，基站1下发了N1个PDSCH，基站2下发了N2个PDSCH，UE分别反馈N1个PDSCH和N2个PDSCH对应的HARQ-ACK信息，N1个PDSCH对应的HARQ-ACK信息形成HARQ-ACK序列并承载于PUCCH1上，N2个PDSCH对应的HARQ-ACK信息形成HARQ-ACK序列并承载于PUCCH2上。
目前，动态HARQ-ACK码本会根据实际DCI的DAI指示的信息确定HARQ-ACK比特数以及每个DCI调度的PDSCH的反馈信息在HARQ-ACK序列中的顺序。
具体来说，首先，终端设备需要明确哪些PDSCH的HARQ-ACK反馈信息生成同一个HARQ-ACK序列。方式是基于检测到的DCI确定上行反馈的时域位置(例如时隙slot)，指示相同的PUCCH时域位置的DCI执行统一反馈。例如图2A中，终端设备根据DCI 1和DCI 2的时域位置和两个DCI分别指示的PDSCH相对DCI的时域位置确定PDSCH 1和PDSCH 2的时域位置，并根据DCI 1和DCI 2分别指示的HARQ-ACK反馈时延信息确定PDSCH 1和PDSCH 2各自对应的PUCCH的时域位置，当两个DCI指示的PUCCH的 时域位置相同，例如，位于相同的slot内，则两个PDSCH的HARQ-ACK是统一反馈的。基于上述机制可以确定每一个PUCCH所承载的HARQ-ACK的比特数，也就是反馈对应的PDSCH数量。
然后，终端设备需要基于预先定义的DCI排列顺序确定相应HARQ-ACK各个比特位上反馈的HARQ-ACK所对应的PDSCH，从而在各个比特位上反馈相应PDSCH的信息。
DCI排序准则为：第一步，所有DCI先按照PDCCH传输时机(monitoring occasion)排序，第二步，经过第一步排序后排序相同的DCI进一步按照载波(Component Carrier，CC)索引值由小到大排序，其中，PDCCH monitoring occasion是根据PDCCH检测周期、检测偏移量(offset)和检测图案(pattern)(配置在搜索空间集合中)确定的。例如图2B中，终端设备确定4个DCI对应了同一个反馈时刻(也就是同一个PUCCH资源)。则根据上述第一步确定DCI 1和DCI 2排在DCI 3和DCI 4之前，根据上述第二步确定DCI 1排在DCI 2之前，DCI 3排在DCI 4之前。经过DCI排序，DCI 1对应的HARQ-ACK反馈信息位于HARQ-ACK序列中的第一个比特位，DCI 2对应的HARQ-ACK反馈信息位于HARQ-ACK序列中的第二个比特位，以此类推。
为了避免终端设备漏检DCI导致HARQ-ACK比特数和基站理解的HARQ-ACK比特数不同的情况。为了提高传输鲁棒性，现有技术中，每个DCI中会携带一个指示累计DCI数量的字段称为累积(counter)下行分配索引(Downlink Assignment Indication，DAI)用于避免漏检DCI时HARQ-ACK比特数出现歧义。该字段(通常2-bit)用于指示当前DCI的排序(指示规则和上面对DCI排序的规则相同)，进而指明了当前DCI对应的HARQ-ACK的比特位置。比如图2C中，DCI 1至DCI4中的counter DAI分别指示1至4，从而假如DCI 3被漏检了，则UE可以根据DCI 4指示的counter DAI＝4，确定当前已经有4个DCI发送，则会有4个HARQ-ACK信息比特，且第三个HARQ-ACK比特位对应的反馈为NACK。
为了进一步提高鲁棒性，比如当配置的载波数量大于1，则出现漏检DCI的可能性增加，从而需要一个额外信息Total DAI指示当前PDCCH monitoring occasion上已有的DCI，从而确保UE和基站对HARQ-ACK比特数理解一致。例如图2D，配置了两个载波，则DCI中会包括Total DAI用于指示当前时刻以及之前的总DCI数量，比如PDCCH monitoring occasion 1上DCI 1和DCI 2均会指示Total DAI＝2，表明当前PDCCH monitoring occasion以及之前的反馈HARQ-ACK的DCI总数为2。现有技术中，终端设备只是根据配置的CORESET对应的载波数量来确定DCI中的DAI比特数(即是否存在Total DAI)，进而HARQ-ACK比特数，并未考虑到CORESET的分组信息。因不同分组的CORESET承载的DCI调度的上行数据对应的反馈信息可能会分别反馈，因此按照现有技术可能会导致终端设备和网络设备对DCI的比特数认知不一致。
为此，如图3所示，为本申请实施例提供的第一种通信方法流程示意图。参见图3，该方法包括：
步骤301，网络设备确定M个控制资源集合。
具体来说，网络设备确定一个或多个载波，包括了每个载波的标识以及物理资源位置信息等，其中，每个载波上会配置一个或者多个控制资源集合。另外，网络设备还确定控制资源集合的分组信息，分组信息可以承载于控制资源集合对应的参数集合中，可能的取值有多个。分组信息相同的控制资源集合中承载的DCI调度的PDSCH可以执行统一反馈，即相应的HARQ-ACK信息可以用于生成一个HARQ-ACK序列，并承载于同一个上行资 源上。可以理解的是，分组信息可以用于表征控制资源集合所属的传输点信息，由同一个传输点调度的PDSCH对应的HARQ-ACK信息可以统一反馈给该传输点。例如，一个终端设备与两个传输点通信，则配置的M个控制资源集合携带的分组信息为0或者1，可以理解为M个控制资源集合被分为两组，组号分别为0、1，配置分组信息为0的控制资源集合对应的HARQ-ACK信息可以统一生成一个HARQ-ACK序列承载于一个上行资源上。鉴于多个载波上的PDSCH的HARQ-ACK反馈信息可以统一编码并反馈，每个载波上的控制资源集合均可以被配置为组0或者组1，即不同载波上的分组信息是一致的，此时，若多个载波上的控制资源集合具有相同的分组信息，则多个载波上调度的数据可以统一编码并反馈。控制资源集合中的分组信息除了上述作用，还在于，当支持多个站点调度的PDSCH对应的HARQ-ACK反馈信息统一编码承载于同一个上行资源时，终端设备利用分组信息对DCI进行进一步排序，即，DCI排序除了基于PDCCH检测时机和载波编号，还基于分组信息排序，从而确定HARQ-ACK各个比特位对应的PDSCH。
步骤302，网络设备向终端设备发送第一指示信息，第一指示信息用于指示M个控制资源集合中的N个控制资源集合的分组信息，N小于M。
其中，N个控制资源集合的分组信息与M个控制资源集合中除了N个控制资源集合之外的K个控制资源集合对应的分组信息是相关的。
也就是说，第一指示信息中包括M个控制资源集合中部分控制资源集合的分组信息，还有部分控制资源集合的分组信息被缺省。分组信息可以是标识，也可以是索引值(例如组序号)。例如，第一指示信息用于指示CORESET#1的分组信息为0，CORESET#2的分组信息为1。
可选的，网络设备向终端设备发送M个控制资源集合的配置信息。
进一步可选的，配置信息中包括第一指示信息。
具体地，该M个控制资源集合可以是网络设备通过无线资源控制层(radio resource control，RRC)信令配置的载波中的控制资源集合。
可选的，该M个控制资源集合还可以是网络设备通过媒体接入控制层控制单元(media access control control element，MAC CE)信令激活的载波中的控制资源集合。具体的，网络设备可以配置一个或多个载波，一个或多个载波中可以包括相应的控制资源集合的配置信息，并进一步通过MAC CE信令激活一个或多个载波中的部分或者全部控制资源集合。步骤303，终端设备接收该第一指示信息。
步骤304，终端设备根据第一指示信息，确定M个控制资源集合中除了N个控制资源集合之外的K个控制资源集合对应的分组信息。
其中，K为大于等于1的正整数。K可能的取值如下：假设M个控制资源集合为基站配置的所有载波中的所有控制资源集合。若K个控制资源集合对应的分组信息基于所有RRC信令配置的载波中控制资源集合中的分组信息确定，则K等于M与N的差值。若K个控制资源集合对应的分组信息基于激活载波中控制资源集合中的分组信息确定，则K可能小于M与N的差值。
比如说，M个控制资源集合为激活载波中的控制资源集合。若K个控制资源集合对应的分组信息基于所有激活载波中控制资源集合中的分组信息确定，则K等于M与N的差值。
比如说，M个控制资源集合为一个载波中的控制资源集合。若K个控制资源集合对应 的分组信息基于相同载波中的分组信息确定，则K等于M与N的差值。
下面对图3所示实施例中终端设备确定K个控制资源集合的分组信息的各种情形进行说明。
情形1，M个控制资源集合均位于同一个载波或同一部分带宽(band width part，BWP)，在N个控制资源集合的分组信息相同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合的分组信息相同。也就是说，M个控制资源集合均位于同一个载波或同一BWP，在N个控制资源集合的分组信息相同时，N个控制资源集合和K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中。或者，可以理解为，N个控制资源集合和K个控制资源集合对应同一个传输点。
示例性地，如图4A所示，基站配置的1个载波中，CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组0，CORESET#3的分组信息缺省，CORESET#4被配置的分组信息为组0。终端设备根据CORESET#1和CORESET#2、CORESET#4所在的组0，可以确定CORESET#3的分组信息为组0。也就是说，CORESET#1、CORESET#2、CORESET#3和CORESET#4对应同一个传输点。
情形2，M个控制资源集合均位于同一个载波或同一BWP，在N个控制资源集合中至少两个控制资源集合的分组信息不同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合中的第一控制资源集合的分组信息相同，其中，第一控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值或最大值。也就是说，M个控制资源集合均位于同一个载波或同一BWP，在N个控制资源集合中至少两个控制资源集合的分组信息不同时，以第一控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值为例，N个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中或者，可以理解为，N个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合对应同一个传输点。
示例性地，如图4B所示，基站配置的1个载波中，CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组1，CORESET#3的分组信息被缺省，CORESET#4被配置的分组信息为组0。终端设备可以确定CORESET#3的分组信息为组0，或者终端设备可以确定CORESET#3的分组信息为组1，也就是说，当CORESET#3对应最小的分组信息时，CORESET#1、CORESET#3和CORESET#4对应同一个传输点，当CORESET#3对应最大的分组信息时，CORESET#2和CORESET#3对应同一个传输点。
情形3，M个控制资源集合位于不同载波，在N个控制资源集合的分组信息相同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合的分组信息相同。也就是说，M个控制资源集合配置于多个载波内，所有配置了分组信息的控制资源集合，例如，N个控制资源集合均被配置相同的分组信息时，N个控制资源集合和K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中。或者，可以理解为，N个控制资源集合和K个控制资源集合对应同一个传输点。
示例性地，如图4C所示，基站共配置2个载波，其中，第一载波(CC1)上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组0，第二载波上CORESET#3 的分组信息被缺省，第二载波(CC2)上的CORESET#4被配置的分组信息为组0。终端设备可以确定第二载波上CORESET#3的分组信息为组0，也就是说，CORESET#1、CORESET#2、CORESET#3和CORESET#4对应同一个传输点。
情形4，M个控制资源集合位于不同载波，在N个控制资源集合中至少两个控制资源集合的分组信息不同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合中的第一控制资源集合的分组信息相同，其中，所述第一控制资源集合的分组信息为所述N个控制资源集合的分组信息中的最小值或最大值。也就是说，M个控制资源集合位于不同载波，在N个控制资源集合中至少两个控制资源集合的分组信息不同时，以第一控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值为例，N个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中或者，可以理解为，N个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合对应同一个传输点。
示例性地，如图4D所示，基站共配置2个载波，其中，第一载波(CC1)上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组1，第二载波(CC2)上CORESET#3的分组信息被缺省，第二载波上的CORESET#4被配置的分组信息为组0。终端设备可以确定第二载波上CORESET#3的分组信息为最小值(组0)，或者终端设备可以确定第二载波上CORESET#3的分组信息为最大值(组1)，也就是说，当CORESET#3对应最小的分组信息时，CORESET#1、CORESET#3和CORESET#4对应同一个传输点，当CORESET#3对应最大的分组信息时，CORESET#2和CORESET#3对应同一个传输点。
情形5，M个控制资源集合位于不同载波，在同一个载波中被指示分组信息的L个控制资源集合为相同的分组信息时，确定所述载波中的未被指示分组信息的控制资源集合与L个控制资源集合的分组信息相同，其中，L小于或等于N。
也就是说，M个控制资源集合位于不同载波，在同一个载波中被指示分组信息的L个控制资源集合为相同的分组信息时，L个控制资源集合和K个控制资源集合中与L个控制资源集合位于相同载波的控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中。或者，可以理解为，L个控制资源集合和K个控制资源集合中与L个控制资源集合位于相同载波的控制资源集合对应同一个传输点。
示例性地，如图4E所示，基站共配置2个载波，其中，第一载波(CC1)上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组0，CORESET#3的分组信息被缺省，第二载波(CC2)上的CORESET#4被配置的分组信息为组1。终端设备可以确定第一载波上CORESET#3的分组信息为组0。也就是说，CORESET#1、CORESET#2和CORESET#3对应同一个传输点。
情形6，M个控制资源集合位于不同载波，在同一个载波中被指示分组信息的L个控制资源集合中至少两个控制资源集合的分组信息不同时，确定该载波中的未指示分组信息的控制资源集合与第二控制资源集合的分组信息相同；其中，第二控制资源集合的分组信息为L个控制资源集合中的最小值或最大值。
也就是说，M个控制资源集合位于不同载波，在同一个载波中被指示分组信息的L个控制资源集合中至少两个控制资源集合的分组信息不同时，以第二控制资源集合的分组信 息为L个控制资源集合中的最小值为例，L个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合中与L个控制资源集合位于相同载波的控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中。或者，可以理解为，L个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合中与L个控制资源集合位于相同载波的控制资源集合对应同一个传输点。
示例性地，如图4F所示，基站共配置2个载波，其中，第一载波上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组1，第一载波上CORESET#3的分组信息被缺省，第二载波上的CORESET#4被配置的分组信息为组1。终端设备可以确定第一载波上CORESET#3的分组信息为最小值(组0)，也就是说，CORESET#1、和CORESET#3对应同一个传输点；也可以确定第一载波上CORESET#3的分组信息为最大值(组1)，也就是说，CORESET#2、和CORESET#3对应同一个传输点。
情形7，M个控制资源集合位于一个或者多个激活载波，在N个控制资源集合的分组信息相同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合的分组信息相同。
也就是说，M个控制资源集合为配置的多个载波中的激活载波内，其中激活载波内的控制资源集合均被激活，例如，N个控制资源集合和K个控制资源集合均被配置相同的分组信息时，N个控制资源集合和K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码，并生成同一个HARQ-ACK反馈序列，并可以承载于同一个上行反馈资源中。或者，可以理解为，N个控制资源集合和K个控制资源集合对应同一个传输点。
示例性地，如图4G所示，基站共配置4个载波，但只激活了2个载波，其中，激活的第一载波(CC1)上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组0，激活的第二载波(CC2)上CORESET#3的分组信息被缺省，CC2上的CORESET#4被配置的分组信息为组0，未激活的第三载波(CC3)上的CORESET#5被配置的分组信息为组1，未激活的第四载波(CC4)上的CORESET#6和CORESET#7被配置的分组信息为组1。终端设备可以确定第二载波上CORESET#3的分组信息为组0，也就是说，CORESET#1、CORESET#2、CORESET#3和CORESET#4对应同一个传输点。
情形8，M个控制资源集合位于一个或者多个激活载波内，在N个控制资源集合中至少两个控制资源集合的分组信息不同时，终端设备确定K个控制资源集合的分组信息与N个控制资源集合中的第一控制资源集合的分组信息相同，其中，所述第一控制资源集合的分组信息为所述N个控制资源集合的分组信息中的最小值或最大值。
也就是说，例如，N个控制资源集合中至少两个控制资源集合的分组信息不同时，以第一控制资源集合的分组信息为N个控制资源集合的分组信息中的最小值为例，N个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中或者，可以理解为，N个控制资源集合中具备分组信息最小值的控制资源集合和K个控制资源集合对应同一个传输点。
示例性地，如图4H所示，基站共配置4个载波，但只激活了2个载波，其中，激活的第一载波(CC1)上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组 信息为组1，激活的第二载波(CC2)上CORESET#3的分组信息被缺省，第二载波上的CORESET#4被配置的分组信息为组0，未激活的第三载波(CC3)上的CORESET#5被配置的分组信息为组1，未激活的第四载波(CC4)上的CORESET#6和CORESET#7被配置的分组信息为组1。终端设备可以确定第二载波上CORESET#3的分组信息为最小值(组0)，或者终端设备可以确定第二载波上CORESET#3的分组信息为最大值(组1)，也就是说，当CORESET#3对应最小的分组信息时，CORESET#1、CORESET#3和CORESET#4对应同一个传输点，当CORESET#3对应最大的分组信息时，CORESET#2和CORESET#3对应同一个传输点。
情形9，K个控制资源集合对应的分组信息与N个控制资源集合对应的分组信息均不同。也就是说，K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息可以统一编码并生成同一个HARQ-ACK反馈序列并可以承载于同一个上行资源中。或者，可以理解为，K个控制资源集合对应同一个传输点。
可选的，N个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息不能与K个控制资源集合中承载的DCI所调度的PDSCH对应的HARQ-ACK反馈信息承载于同一个上行资源中。
示例性地，如图4I所示，基站共配置2个载波，其中，载波1上的CORESET#1被配置的分组信息为组0，CORESET#2配置的分组信息为组1，载波2上的CORESET#3的分组信息缺省，CORESET#4被配置的分组信息为组0。终端设备确定CORESET#3的分组信息不为组0和组1。终端设备可以确定CORESET#3的分组信息为组2，并且承载于CORESET#3的DCI所调度的PDSCH对应的HARQ-ACK反馈信息承载于同一个上行资源中，且不与其他CORESET中的DCI所调度的PDSCH对应的HARQ-ACK反馈信息承载于同一个上行资源中。终端设备还可以不确定CORESET#3的分组信息，直接确定承载于CORESET#3的DCI所调度的PDSCH对应的HARQ-ACK反馈信息承载于同一个上行资源中，且不与其他CORESET中的DCI所调度的PDSCH对应的HARQ-ACK反馈信息承载于同一个上行资源中。
需要说明的是，终端设备可以不确定未配置分组信息的CORESET所对应的分组信息，而是直接基于上述示例的情形生成HARQ-ACK反馈信息。
考虑，当终端设备独立反馈不同传输点调度的数据对应的反馈信息时，CORESET所对应的不同的分组可能对应的载波数量不同，为此需要确定不同分组对应的DCI中的DAI的比特数从而确保终端设备可以正确接收DCI并针对每个分组信息分别执行HARQ-ACK反馈。如图5所示，为本申请实施例提供另一种通信方法的流程示意图，包括：
步骤501，网络设备确定M个控制资源集合。
M个控制资源集合具体配置方式可以参见步骤301，在此不再赘述。
步骤502，网络设备向终端设备发送M个控制资源集合的配置信息。
一种情况下，M个控制资源集合的配置信息包括M个控制资源集合的分组信息以及载波信息。另一种情况下，M个控制资源集合的配置信息包括M个控制资源集合的载波信息，以及部分控制资源集合的分组信息。
步骤503，终端设备接收配置信息。
步骤504，终端设备根据配置信息确定M个控制资源集合的分组信息和载波信息。
一种情况下，若网络设备向终端设备发送的M个控制资源集合的配置信息包括M个控制资源集合的分组信息，则终端设备根据配置信息确定M个控制资源集合的分组信息。另外，终端设备还根据网络设备发送的配置信息确定M个控制资源集合的载波信息。
另一种情况下，若网络设备向终端设备发送的M个控制资源集合的配置信息包括部分控制资源集合的分组信息，则终端设备根据图3所示的实施例中的方法确定M个控制资源集合的分组信息。另外，终端设备还根据网络设备发送的配置信息确定M个控制资源集合的载波信息。
步骤505，终端设备确定第一分组信息的载波的第一数量。其中，第一数量与M个控制资源集合的分组信息和载波信息相关联。
也就是说，终端设备根据M个控制资源集合的分组信息和载波信息，确定各个分组信息的控制资源集合对应的载波数量。
可选的，终端设备根据具备第一分组信息的CORESET确定包含第一分组信息的载波的第一数量。
具体地，假设第一分组信息为M个控制资源集合的分组信息中的任意一个分组信息，针对第一分组信息的U个控制资源集合，当U个控制资源集合均在同一个载波中时，U个控制资源集合对应的载波数量为1；当U个控制资源集合在两个载波中时，U个控制资源集合对应的载波数量为2。
步骤506，终端设备根据第一数量，确定U个控制资源集合承载的DCI的下行分配索引(downlink assignment indication，DAI)字段的比特数。
具体地，当U个控制资源集合对应的第一数量大于1时，终端设备确定该U个控制资源集合承载的DCI的DAI字段的比特数为第一数值，例如当DAI为total DAI时，第一数值为2，当DAI包括total DAI和counter DAI时，第一数值为4；当U个控制资源集合对应的第一数量等于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第二数值(例如比特数为4)；第一数值大于第二数值，例如当DAI为total DAI时，第一数值为0，当DAI包括total DAI和counter DAI时，第一数值为2。
示例性地，如图6所示，基站配置了两个载波且第一载波(CC1)上配置了两个组的CORESET，第二载波(CC2)上配置了两个组的CORESET，其中，CC1上CORESET#1和CORESET#2被配置为组1，CORESET#3和CORESET#4被配置为组2；第二载波上CORESET#5被配置为组1，CORESET#6被配置为组2。终端设备确定组1对应的载波数量为2，组2对应的载波数量为2。终端设备确定与组1对应的DCI，也就是CORESET#1、CORESET#2和CORESET#5中承载的DCI中的DAI包括total DAI，比特数为4比特，终端设备确定组2对应的DCI，也就是CORESET#3、CORESET#4和CORESET#6中承载的DCI中的DAI也包括total DAI，比特数也为4比特。
示例性地，如图7所示，基站配置了两个载波且第一载波(CC1)上配置了两个组的CORESET，第二载波(CC2)上配置了一个组的CORESET，其中，CC1上CORESET#1和CORESET#2被配置为组1，CORESET#3和CORESET#4被配置为组2；第二载波上CORESET#5和CORESET#6被配置为组1。终端设备确定组1对应的载波数量为2，组2对应的载波数量为1。终端设备确定与组1对应的DCI，也就是CORESET#1、CORESET#2和CORESET#5、CORESET#6中承载的DCI中的DAI包括total DAI，比特数为4比特，终端设备确定组2对应的DCI，也就是CORESET#3、CORESET#4中承载的DCI中的DAI 不包括total DAI，比特数也为2比特。
在一种可能的实施例中，网络设备确定第一分组信息的载波的第一数量，第一数量与M个控制资源集合的分组信息和载波信息相关联，然后根据第一分组信息的载波的数量，确定第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数，之后，网络设备向终端设备发送包括该DAI字段的比特数的DCI。这样，网络设备和终端设备对于DAI字段的比特数的DCI的理解一致，因此可以保证后续传输的可靠性。
在一种可能的实施例中，终端设备根据M个控制资源集合的分组信息和载波信息，确定第二分组信息的载波的第二数量；然后根据第二数量，确定第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数；其中，V小于M，V为大于或等于1的正整数。终端设备根据第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数，检测V个控制资源集合承载的DCI；终端设备发送第二下行数据的第二反馈信息，其中，第二下行数据是V个控制资源集合承载的DCI调度。
在一种可能的设计中，终端设备被配置为独立反馈模式，也就是说，终端设备根据第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数，检测U个控制资源集合承载的DCI。
在一种可能的设计中，终端设备发送第一下行数据的第一反馈信息，其中，第一下行数据是所述U个控制资源集合承载的DCI调度的。可以理解的，第一下行数据可以是一个或多个，第一下行数据可以由U个控制资源集合中一个或多个中承载的一个或多个DCI调度的。本申请实施例不作限制。
在一种可能的设计中，终端设备根据第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数，检测V个控制资源集合承载的DCI；终端设备发送第二下行数据的第二反馈信息，其中，第二下行数据是V个控制资源集合承载的DCI调度的。可以理解的，第二下行数据可以是一个或多个，第二下行数据可以由V个控制资源集合中一个或多个中承载的一个或多个DCI调度的。本申请实施例不作限制。
在一种可能的设计中，U个控制资源集合承载的DCI所调度的下行数据的上行反馈资源与V个控制资源集合承载的DCI所调度的下行数据的上行反馈资源在同一时间单位内不同。即第一反馈信息和第二反馈信息分别承载于同一时间单位内的不同上行反馈资源上。也就是说，终端设备分别发送不同组承载的DCI调度的下行数据，以保证不同组承载的DCI调度的下行数据的反馈信息独立反馈。
在一种可能的设计中，网络设备下发HARQ-ACK反馈模式指示信令，HARQ-ACK反馈模式指示信令用于指示HARQ-ACK反馈采用独立反馈还是联合反馈。当HARQ-ACK反馈模式被指示为联合反馈，即HARQ-ACK反馈支持第一分组信息对应的U个控制资源集合和第二分组信息对应的V个控制资源集合中承载的DCI所调度的数据对应的HARQ-ACK反馈共同承载于同一个上行资源，终端设备根据第三数量确定第一分组信息对应的U个控制资源集合和第二分组信息对应的V个控制资源集合中承载的DCI的DAI字段的比特数，其中，第三数量是包含第一分组信息和/或第二分组信息的载波的数量。下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此，上文中的内容均可以用于后续实施例中，重复的内容不再赘述。
图8示出了一种通信装置800的结构示意图。该通信装置800可以实现上文中涉及的终端设备的功能。该通信装置800可以是上文中所述的终端设备，或者可以是设置在上文 中所述的终端设备中的芯片。该通信装置800可以包括处理器801和收发器802。其中，处理器801可以用于执行图3所示的实施例中的步骤304，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器802可以用于执行图3所示的实施例中的303，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如，收发器802，用于接收网络设备发送的第一指示信息，第一指示信息用于指示M个控制资源集合中的N个控制资源集合的分组信息，N小于M，N和M为大于或等于1的正整数。
处理器801，用于根据第一指示信息，确定M个控制资源集合中除了N个控制资源集合之外的K个控制资源集合的分组信息。
在一种可能的实施方式中，在所述N个控制资源集合的分组信息相同时，所述终端设备确定所述K个控制资源集合的分组信息与所述N个控制资源集合的分组信息相同；
在一种可能的实施方式中，在所述N个控制资源集合中至少两个控制资源集合的分组信息不同时，所述终端设备确定所述K个控制资源集合的分组信息与所述N个控制资源集合中的第一控制资源集合的分组信息相同，其中，所述第一控制资源集合的分组信息为所述N个控制资源集合的分组信息中的最小值或最大值。
在一种可能的实施方式中，M个控制资源集合属于同一个载波或同一个BWP。
在一种可能的实施方式中，当同一载波中的被指示分组信息的L个控制资源集合为相同的分组信息时，所述终端设备确定所述同一载波中的未被指示分组信息的控制资源集合与所述L个控制资源集合的分组信息相同；
在一种可能的实施方式中，当同一载波中的被指示分组信息的L个控制资源集合存在至少两个控制资源集合的分组信息不同时，所述终端设备确定所述同一载波中的未被指示分组信息的控制资源集合与第二控制资源集合的分组信息相同；其中，L小于N，L为大于或等于1的正整数，所述第二控制资源集合的分组信息为所述L个控制资源集合的分组信息中的最小值或最大值。
在一种可能的设计中，M个控制资源集合为通过RRC信令配置的载波内的控制资源集合或者为通过MAC CE信令指示激活的载波中的控制资源集合。也就是说，M个控制资源集合可能全是激活载波内的控制资源集合，也可能部分是激活载波内的控制资源集合，其余部分是未激活载波内的控制资源集合。
在一种可能的实施例中，终端设备接收第二指示信息，第二指示信息用于指示M个控制资源集合的载波信息；该方法还包括：
终端设备确定第一分组信息的载波的第一数量；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个，然后，终端设备根据第一数量，确定第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
本申请实施例中，终端设备在控制资源集合的分组信息缺省的情况下，仍能够根据全部或者部分控制资源集合的分组信息和载波信息，确定控制资源集合承载的DCI的DAI字段的比特数，确保终端设备和网络设备对DAI的比特数理解一致，增加传输可靠性。终端设备仅根据包含同一个分组信息的载波的数量确定该分组信息下控制资源集合中承载 的DCI的比特数，从而减小DCI的开销。
在一种可能的实施例中，第一指示信息和第二指示信息可以携带在同一条消息中，也可以携带在不同的消息中。
在一种可能的实施例中，当第一数量大于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；当第一数量等于1时，终端设备确定U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。例如，包括第一分组信息的载波数量为2时，终端设备确定第一分组信息对应的控制资源集合承载的DCI中的total DAI字段的比特数为2，第一分组信息的载波数量为1时，终端设备确定第一分组信息对应的控制资源集合承载的DCI中的total DAI字段的比特数为0。
在一种可能的实施例中，终端设备根据DAI确定下行数据反馈信息的比特数，以及各个下行数据反馈信息在反馈信息序列中的比特位置。具体的，DAI中可以包括counter DAI，当载波数量大于1时，DAI中还可以包括total DAI，其中，counter DAI用于标识该DCI的排序，从而指示该DCI调度的数据在反馈信息序列中的比特位置，total DAI用于标识当前已存在的待反馈的数据对应的DCI数量，从而指示反馈信息序列的比特位数。
在一种可能的实施例中，终端设备根据第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数，检测U个控制资源集合承载的DCI。
在一种可能的实施例中，终端设备发送第一下行数据的第一反馈信息，其中，第一下行数据是U个控制资源集合中的至少一个承载的DCI调度的。
在一种可能的实施例中，终端设备根据U个控制资源集合中的至少一个承载的DCI生成第一反馈信息序列。
终端设备仅根据包含同一个分组信息的载波的数量确定该分组信息下控制资源集合中承载的DCI的比特数，从而减小DCI的开销。
在一种可能的实施例中，终端设备根据M个控制资源集合的分组信息和载波信息，确定包括第二分组信息的载波的第二数量；其中，第二分组信息为M个控制资源集合的分组信息中的任意一个，且第二分组信息不同于第一分组信息；终端设备根据包括第二数量，确定第二分组信息对应的V个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，V小于M，V为大于或等于1的正整数；终端设备根据第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数，检测V个控制资源集合承载的DCI。
在一种可能的实施例中，U个控制资源集合承载的DCI所调度的下行数据的上行反馈资源与V个控制资源集合承载的DCI所调度的下行数据的上行反馈资源在同一时间单位内不同。
在一种可能的实施例中，终端设备发送第二下行数据的第二反馈信息，其中，第二下行数据是V个控制资源集合承载的至少一个DCI调度的。
在一种可能的实施例中，第一反馈信息和第二反馈信息分别承载于同一时间单位内的不同上行资源上。具体的，在一个时隙slot内，第一反馈信息和第二反馈信息可以承载于同一个slot内时分的或者频分的两个PUCCH资源上。
在一种可能的实施例中，终端设备确定配置相同分组信息的控制资源集合上承载的DCI调度的下行数据对应的HARQ-ACK反馈信息，生成HARQ-ACK序列并确定该序列所占的上行资源。并且，终端设备针对配置不同分组信息的控制资源集合上承载的DCI对应的HARQ-ACK反馈信息分别生成HARQ-ACK序列并分别确定每个HARQ-ACK序列所 占的上行资源。
另外，图8所示的通信装置的处理器801可以用于执行图5所示的实施例中的步骤504至步骤506，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器802可以用于执行图5所示的实施例中的503，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如，收发器802，用于接收配置信息。
处理器801，用于根据配置信息确定M个控制资源集合的分组信息，然后根据M个控制资源集合的分组信息和载波信息，确定第一分组信息的载波的第一数量；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个；终端设备根据第一分组信息的载波的数量，确定第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
在一种可能的实施例中，当第一数量大于1时，所述终端设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；
当第一等于1时，终端设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。
图9示出了一种通信装置900的结构示意图。该通信装置900可以实现上文中涉及的网络设备的功能。该通信装置900可以是上文中所述的网络设备，或者可以是设置在上文中所述的网络设备中的芯片。该通信装置900可以包括处理器901和收发器902。其中，处理器901可以用于执行图3所示的实施例中步骤301，收发器902用于执行图3所示的实施例中步骤302。
在一种可能的实施方式中，在所述N个控制资源集合的分组信息相同时，所述N个控制资源集合的分组信息与所述K个控制资源集合的分组信息相同。
在一种可能的实施方式中，在所述N个控制资源集合中至少两个控制资源集合的分组信息不同时，所述N个控制资源集合中的第一控制资源集合的分组信息与所述K个控制资源集合的分组信息相同，其中，所述第一控制资源集合的分组信息为所述N个控制资源集合的分组信息中的最小值或最大值。
在一种可能的实施方式中，M个控制资源集合属于同一个载波或同一个BWP。
在一种可能的实施方式中，当同一载波中的被指示分组信息的L个控制资源集合为相同的分组信息时，所述L个控制资源集合的分组信息与所述同一载波中的未被指示分组信息的控制资源集合相同。
在一种可能的实施方式中，当同一载波中的被指示分组信息的L个控制资源集合存在至少两个控制资源集合的分组信息不同时，所述L个控制资源集合中的第二控制资源集合的分组信息与所述同一载波中的未被指示分组信息的控制资源集合的分组信息相同；其中，L小于N，所述第二控制资源集合的分组信息为所述L个控制资源集合的分组信息中的最小值或最大值。
在一种可能的实施方式中，M个控制资源集合为通过RRC信令或者MAC CE信令配置的载波中的控制资源集合。
另外，图9所示的通信装置的处理器901可以用于执行图5所示的实施例中的步骤501 或执行除了收发过程之外的全部的其他过程或部分的其他过程，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器902可以用于执行图5所示的实施例中的502，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如，处理器901，用于确定M个控制资源集合。
收发器902，用于发送M个控制资源集合的配置信息，配置信息包括M个控制资源集合的分组信息和载波信息。
处理器901，还用于确定包含第一分组信息的载波的第一数量，第一数量与M个控制资源集合的分组信息和载波信息相关联；其中，第一分组信息为M个控制资源集合的分组信息中的任意一个；终端设备根据第一数量，确定第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
可以理解的，本申请各实施例中第一数量与M个控制资源集合的分组信息和载波信息相关联具体可以指网络设备根据M个控制资源集合的分组信息和载波信息，确定第一数量；或者，可以指网络设备先确定第一数量，再根据第一数量确定M个控制资源集合的分组信息和载波信息，本申请实施例对其先后顺序或因果关系不作具体限定。
收发器902，还用于向终端设备发送DCI。
在一种可能的实施方式中，当第一数量大于1时，网络设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；
当第一数量等于1时，网络设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；第一数值大于第二数值。
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。
在一个可能的实施例中，上述图8中的收发器802可以由图10中的收发器1002来实现，图8中的处理器801可以由图10中的处理模块1001来实现，本申请实施例对此不再一一赘述。
在一个可能的实施例中，上述图9中的收发器902可以由图11中的收发器1102来实现，图9中的处理器901可以由图11中的处理模块1101来实现，本申请实施例对此不再一一赘述。
基于与上述方法实施例相同构思，本申请实施例还提供了一种计算机可读存储介质，其上存储有一些指令，这些指令被计算机调用执行时，可以使得计算机完成上述方法实施例、方法实施例的任意一种可能的设计中所涉及的方法。本申请实施例中，对计算机可读存储介质不做限定，例如，可以是RAM(random-access memory，随机存取存储器)、ROM(read-only memory，只读存储器)等。
基于与上述方法实施例相同构思，本申请还提供一种计算机程序产品，该计算机程序产品在被计算机调用执行时可以完成方法实施例以及上述方法实施例任意可能的设计中所涉及的方法。
基于与上述方法实施例相同构思，本申请还提供一种芯片，该芯片可以包括处理器以及接口电路，用于完成上述方法实施例、方法实施例的任意一种可能的实现方式中所涉及的方法，其中，“耦合”是指两个部件彼此直接或间接地结合，这种结合可以是固定的或可 移动性的，这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间进行通信。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于终端设备中。可选地，处理器和存储媒介也可以设置于终端设备中的不同的部件中。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征及其实施例对本发明进行了描述，显而易见的，在不脱离本发明的范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本发明的示例性说明，且视为已覆盖本发明范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (21)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收第一指示信息，所述第一指示信息用于指示M个控制资源集合中的N个控制资源集合的分组信息，N小于M，N和M为大于或等于1的正整数；
    所述终端设备根据所述第一指示信息，确定所述M个控制资源集合中除了所述N个控制资源集合之外的K个控制资源集合的分组信息，K为大于或等于1的正整数。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述第一指示信息，确定所述M个控制资源集合中除了所述N个控制资源集合之外的K个控制资源集合的分组信息，包括：
    在所述N个控制资源集合的分组信息相同时，所述终端设备确定所述K个控制资源集合的分组信息与所述N个控制资源集合的分组信息相同；和/或
    在所述N个控制资源集合中至少两个控制资源集合的分组信息不同时，所述终端设备确定所述K个控制资源集合的分组信息与所述N个控制资源集合中的第一控制资源集合的分组信息相同，其中，所述第一控制资源集合的分组信息为所述N个控制资源集合的分组信息中的最小值或最大值。
  3. 根据权利要求2所述的方法，其特征在于，所述M个控制资源集合属于同一个载波或同一个部分带宽BWP。
  4. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述第一指示信息，确定所述M个控制资源集合中除了所述N个控制资源集合之外的K个控制资源集合的分组信息，包括：
    当同一载波中的被指示分组信息的L个控制资源集合为相同的分组信息时，所述终端设备确定所述同一载波中的未被指示分组信息的控制资源集合与所述L个控制资源集合的分组信息相同；和/或
    当同一载波中的被指示分组信息的L个控制资源集合存在至少两个控制资源集合的分组信息不同时，所述终端设备确定所述同一载波中的未被指示分组信息的控制资源集合与第二控制资源集合的分组信息相同；其中，L为大于或等于1的正整数，所述L个控制资源集合为所述N个控制资源集合中的部分控制资源集合，所述第二控制资源集合的分组信息为所述L个控制资源集合的分组信息中的最小值或最大值。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述M个控制资源集合为通过无线资源控制层RRC信令或者媒体接入控制层控制单元MAC CE信令配置的载波中的控制资源集合。
  6. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收第二指示信息，所述第二指示信息用于指示M个控制资源集合的载波信息；
    所述终端设备根据所述M个控制资源集合的分组信息和载波信息，确定包含第一分组信息的载波的第一数量；其中，所述第一分组信息为所述M个控制资源集合的分组信息中的任意一个；
    所述终端设备根据所述第一数量，确定所述第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1 的正整数。
  7. 根据权利要求6所述的方法，其特征在于，所述终端设备根据所述第一数量，确定所述U个控制资源集合承载的DCI的DAI字段的比特数，包括：
    当所述第一数量大于1时，所述终端设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；
    当所述第一数量等于1时，所述终端设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；所述第一数值大于所述第二数值。
  8. 根据权利要求6或7所述的方法，其特征在于，该方法还包括：
    所述终端设备根据所述第一分组信息对应的U个控制资源集合承载的DCI的DAI字段的比特数，检测所述U个控制资源集合承载的DCI。
  9. 根据权利要求8所述的方法，其特征在于，该方法还包括：
    所述终端设备根据所述M个控制资源集合的分组信息和所述载波信息，确定包含第二分组信息的载波的第二数量；其中，所述第二分组信息为所述M个控制资源集合的分组信息中的任意一个，所述第二分组信息与所述第一分组信息不同；
    所述终端设备根据所述第二数量，确定所述第二分组信息对应的V个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，V小于M，V为大于或等于1的正整数；
    所述终端设备根据所述第二分组信息对应的V个控制资源集合承载的DCI的DAI字段的比特数，检测所述V个控制资源集合承载的DCI，其中，所述U个控制资源集合承载的DCI所调度的下行数据的上行反馈资源与所述V个控制资源集合承载的DCI所调度的下行数据的上行反馈资源在同一时间单位内不同。
  10. 一种通信方法，其特征在于，包括：
    网络设备确定M个控制资源集合；
    所述网络设备向终端设备发送第一指示信息，所述第一指示信息包括M个控制资源集合中的N个控制资源集合的分组信息，N小于M，N和M为大于或等于1的正整数；
    其中，所述N个控制资源集合的分组信息与所述M个控制资源集合中除了所述N个控制资源集合之外的K个控制资源集合的分组信息相关。
  11. 根据权利要求10所述的方法，其特征在于，在所述N个控制资源集合的分组信息相同时，所述N个控制资源集合的分组信息与所述K个控制资源集合的分组信息相同；和/或
    在所述N个控制资源集合中至少两个控制资源集合的分组信息不同时，所述N个控制资源集合中的第一控制资源集合的分组信息与所述K个控制资源集合的分组信息相同，其中，所述第一控制资源集合的分组信息为所述N个控制资源集合的分组信息中的最小值或最大值。
  12. 根据权利要求11所述的方法，其特征在于，所述M个控制资源集合属于同一个载波或同一个部分带宽BWP。
  13. 根据权利要求10所述的方法，其特征在于，当同一载波中的被指示分组信息的L个控制资源集合为相同的分组信息时，所述L个控制资源集合的分组信息与所述同一载波中的未被指示分组信息的控制资源集合相同；和/或
    当同一载波中的被指示分组信息的L个控制资源集合存在至少两个控制资源集合的分 组信息不同时，所述L个控制资源集合中的第二控制资源集合的分组信息与所述同一载波中的未被指示分组信息的控制资源集合的分组信息相同；其中，L为大于或等于1的正整数，所述L个控制资源集合为所述N个控制资源集合中的部分控制资源集合，所述第二控制资源集合的分组信息为所述L个控制资源集合的分组信息中的最小值或最大值。
  14. 根据权利要求10至13任一项所述的方法，其特征在于，所述M个控制资源集合为通过无线资源控制层RRC信令或者媒体接入控制层控制单元MAC CE信令配置的载波中的控制资源集合。
  15. 根据权利要求10所述的方法，其特征在于，该方法还包括：
    所述网络设备确定包含第一分组信息的载波的第一数量；其中，所述第一分组信息为所述M个控制资源集合的分组信息中的任意一个；
    所述网络备根据所述第一数量，确定所述第一分组信息对应的U个控制资源集合承载的DCI的下行分配索引DAI字段的比特数；其中，U小于M，U和M为大于或等于1的正整数。
  16. 根据权利要求15所述的方法，其特征在于，所述网络设备根据所述第一数量，确定所述U个控制资源集合承载的DCI的DAI字段的比特数，包括：
    当所述第一数量大于1时，所述网络设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第一数值；
    当所述第一数量等于1时，所述网络设备确定所述U个控制资源集合承载的DCI的DAI字段的比特数为第二数值；所述第一数值大于所述第二数值。
  17. 根据权利要求15或16所述的方法，其特征在于，所述网络设备根据所述U个控制资源集合承载的DCI的DAI字段的比特数，在所述U个控制资源集合中的一个或多个中发送DCI。
  18. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器与存储器相连，所述至少一个处理器用于读取并执行所述存储器中存储的程序，以使得所述装置执行如权利要求1-9，或10-17任一项所述的方法。
  19. 一种芯片，其特征在于，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，以实现如权利要求1-9，或10-17任一项所述的方法。
  20. 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有计算机指令，当所述指令在计算机上运行时，使得计算机执行如权利要求1-17任一所述的方法。
  21. 一种计算机程序产品，其特征在于，所述计算机程序产品在被计算机调用时，使得计算机执行如权利要求1-17任一所述的方法。
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