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WO2021017765A1 - Procédé de communication et dispositif de communication - Google Patents

Procédé de communication et dispositif de communication Download PDF

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Publication number
WO2021017765A1
WO2021017765A1 PCT/CN2020/100452 CN2020100452W WO2021017765A1 WO 2021017765 A1 WO2021017765 A1 WO 2021017765A1 CN 2020100452 W CN2020100452 W CN 2020100452W WO 2021017765 A1 WO2021017765 A1 WO 2021017765A1
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WO
WIPO (PCT)
Prior art keywords
time slot
offset value
configuration group
group identifier
downlink data
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/CN2020/100452
Other languages
English (en)
Chinese (zh)
Inventor
杭海存
纪刘榴
施弘哲
毕晓艳
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
Publication of WO2021017765A1 publication Critical patent/WO2021017765A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication, and more specifically, to communication methods and communication devices.
  • multi-station coordinated transmission is a method to improve resource utilization and reduce the level of inter-cell interference.
  • base stations can interact through backhaul, air interface, etc., to coordinate the transmission of required information, so as to reduce interference to edge users and improve system performance.
  • Hybrid automatic repeat request (HARQ) feedback resource conflicts resulting in a decrease in feedback performance.
  • the present application provides a communication method and communication device, which help to improve the transmission performance of HARQ feedback information, thereby improving the feedback performance of downlink data transmission.
  • the present application provides a communication method, the method includes: receiving a configuration group identifier; sending HARQ feedback information of downlink data transmission in a time slot associated with the configuration group identifier, and the downlink data transmission is related to the configuration The group identification corresponds.
  • the HARQ feedback information for downlink data transmission is sent in the time slot associated with the configuration group identifier, the feedback can be distinguished according to different configuration group identifiers. Therefore, when different stations schedule downlink data transmission, different stations schedule The HARQ feedback information corresponding to the downlink data transmission can be respectively transmitted in different time slots, so that the conflict of the HARQ feedback resources can be avoided, and the feedback performance of the HARQ feedback information can be improved.
  • the configuration group identifier may be the high layer index of the control-resource set (CORESET), the downlink data channel configuration identifier, and the uplink Control channel resource indication information or slot offset value set index.
  • the CORESET high-level parameter index may be a CORESET group ID (CORESET group id);
  • the uplink control channel resource indication information may be physical uplink control channel (PUCCH) resource indication information (resource indicator).
  • PUCCH physical uplink control channel
  • the method may further include: determining the downlink data receiving timing corresponding to the time slot to be fed back according to the time slot offset value set.
  • sending HARQ feedback information for downlink data transmission in the time slot associated with the configuration group identifier may include: determining the time slot to be fed back and the associated relationship between the time slot to be fed back and the configuration group identifier The configuration group identifier is associated; the HARQ feedback information of the downlink data transmission is sent in the time slot to be feedback.
  • the HARQ feedback information is sent, and the HARQ feedback information carries the actual reception status of the downlink data transmission.
  • the HARQ feedback information is an unacknowledged NACK.
  • the HARQ feedback information with a value of NACK is sent.
  • the method before the determining the downlink data receiving timing corresponding to the time slot to be fed back according to the time slot offset value set, the method further includes : Determine the time slot offset value set associated with the time slot to be fed back from multiple time slot offset value sets.
  • multiple time slot offset value sets are configured in the network, and different time slots to be fed back can be associated with different time slot offset value sets. That is, before determining the downlink data transmission and reception timings corresponding to different time slots to be fed back, the time slot offset value set corresponding to the time slot to be fed back can be determined from multiple time slot offset value sets, and then the time slot The slot offset value is determined in the offset value set.
  • the time slot offset value set mentioned here is different, which can mean that the length of the time slot offset value set is different; it can also mean that the time slot offset value in the time slot offset value set is different; or the length is different, the time slot The offset value is also different.
  • Different time slots to be fed back correspond to different time slot offset value sets, so that the feedback bits on different time slots to be fed back can be different, thereby saving signaling overhead.
  • the determining the time slot offset value set associated with the time slot to be fed back from multiple time slot offset value sets may be It includes: according to the association relationship between the time slot to be fed back and the configuration group identifier, and the association relationship between the configuration group identifier and the time slot offset value set, from the multiple time slot offset value sets Determining the time slot offset value set associated with the time slot to be fed back.
  • the configuration group identifier associated with the time slot to be fed back can be determined according to the association relationship between the time slot to be fed back and the configuration group identifier, and then the time slot The offset value set is determined as the time slot offset value set associated with the time slot to be fed back.
  • the association relationship between the time slot to be fed back and the configuration group identifier is pre-configured according to the communication protocol Or pre-configured according to the signaling sent by the network side device.
  • the method may further include: receiving first information, where the first information is used to indicate that the downlink data transmission The index of the first slot offset value between the HARQ feedback information of the downlink data transmission in the slot offset value set.
  • sending the HARQ feedback information of the downlink data transmission in the time slot associated with the configuration group identifier includes: determining the first time slot offset from the time slot offset value set according to the first information Shift value; according to the first time slot offset value, determine the target feedback time slot used to send the HARQ feedback information of the downlink data transmission; according to the association relationship between the target feedback time slot and the configuration group identifier, The HARQ feedback information of the downlink data transmission is sent in the target feedback time slot.
  • the target feedback slot after the target feedback slot for downlink data transmission is determined according to the first information, the target feedback slot can be first determined according to the association relationship between the target feedback slot and the configuration group identifier. For the time slot associated with the downlink data transmission, the HARQ feedback information of the downlink data transmission is sent in the target feedback time slot; otherwise, the HARQ feedback information of the downlink data transmission may not be sent.
  • the method may further include: receiving first information, where the first information is used to indicate that the downlink data transmission
  • the index of the first slot offset value between the HARQ feedback information of the downlink data transmission in the slot offset value set, and the target feedback slot determined according to the first slot offset value is the configuration group Identifies the associated time slot.
  • sending the HARQ feedback information of the downlink data transmission in the time slot associated with the configuration group identifier includes: determining the first time slot offset from the time slot offset value set according to the first information Shift value; determine the target feedback slot according to the first slot offset value; send the HARQ feedback information of the downlink data transmission in the target feedback slot.
  • the target feedback time slot determined according to the first information sent by the network side is the time slot associated with the downlink data transmission. Therefore, after the target feedback time slot is determined according to the first information, it can be directly used in the target feedback time slot. Send the HARQ feedback information of the downlink data transmission.
  • determining the first time slot offset value from the time slot offset value set according to the first information may further include: determining the time slot offset value set associated with the configuration group identifier from a plurality of time slot offset value sets.
  • multiple time slot offset value sets are configured in the network, and different target feedback time slots can be associated with different time slot offset value sets. That is, before determining the downlink data transmission and reception timings corresponding to different target feedback time slots, the time slot offset value set corresponding to the target feedback time slot can be determined from multiple time slot offset value sets, and then the time slot offset value set corresponding to the target feedback time slot can be determined from the time slot offset value set. The slot offset value is determined in the offset value set.
  • the time slot offset value set mentioned here is different, which can mean that the length of the time slot offset value set is different; it can also mean that the time slot offset value in the time slot offset value set is different; or the length is different, the time slot The offset value is also different.
  • Different target feedback time slots correspond to different time slot offset value sets, so that the feedback bits on different target feedback time slots can be different, thereby saving signaling overhead.
  • the determining the time slot offset value set associated with the configuration group identifier from multiple time slot offset value sets may include : Determine the time slot offset value set associated with the time slot to be fed back from the multiple time slot offset value sets according to the association relationship between the configuration group identifier and the time slot offset value set.
  • the association relationship between the target feedback time slot and the configuration group identifier may be pre-configured according to the communication protocol , Or can be pre-configured according to the signaling sent by the network side device.
  • a communication method comprising: sending a configuration group identifier; receiving HARQ feedback information of a downlink data transmission in a time slot associated with the configuration group identifier, the downlink data transmission and the configuration group Logo correspondence.
  • the feedback can be differentiated according to different configuration group identifiers. Therefore, when different stations schedule downlink data transmission, different stations schedule The HARQ feedback information corresponding to the downlink data transmission can be transmitted in different time slots, so that the conflict of HARQ feedback resources can be avoided, and the feedback performance of HARQ feedback information can be improved.
  • the configuration group identifier may be a high-level parameter index of a control resource set, a downlink data channel configuration identifier, an uplink control channel resource indication information, or a time slot offset value set index .
  • the CORESET high-level parameter index may be CORESET group id; the uplink control channel resource indication information may be PUCCH resource indicator.
  • the method may further include: determining the downlink data receiving timing corresponding to the time slot to be fed back according to the time slot offset value set.
  • receiving HARQ feedback information for downlink data transmission in the time slot associated with the configuration group identifier may include: determining the time slot to be fed back and the associated relationship between the time slot to be fed back and the configuration group identifier The configuration group identifier is associated; the HARQ feedback information is received in the time slot to be fed back.
  • the HARQ feedback information is an unacknowledged NACK.
  • the method may also The method includes: determining the time slot offset value set associated with the time slot to be fed back from a plurality of time slot offset value sets.
  • multiple time slot offset value sets are configured in the network, and different time slots to be fed back can be associated with different time slot offset value sets. That is, before determining the downlink data transmission and reception timings corresponding to different time slots to be fed back, the time slot offset value set corresponding to the time slot to be fed back can be determined from multiple time slot offset value sets, and then the time slot The slot offset value is determined in the offset value set.
  • the time slot offset value set mentioned here is different, which can mean that the length of the time slot offset value set is different; it can also mean that the time slot offset value in the time slot offset value set is different; or the length is different, the time slot The offset value is also different.
  • Different time slots to be fed back correspond to different time slot offset value sets, so that the feedback bits on different time slots to be fed back can be different, thereby saving signaling overhead.
  • the determining the time slot offset value set associated with the time slot to be fed back from multiple time slot offset value sets may be It includes: determining from the plurality of time slot offset value sets according to the association relationship between the time slot to be fed back and the configuration group identifier and the association relationship between the configuration group identifier and the time slot offset value set The set of time slot offset values associated with the time slot to be fed back.
  • the association relationship between the time slot to be fed back and the configuration group identifier is pre-configured according to the communication protocol or Pre-configured according to the signaling sent by the network side device.
  • the method may further include: sending first information, where the first information is used to indicate that the downlink data transmission The index of the first time slot offset value between the HARQ feedback information of the downlink data transmission in the time slot offset value set; wherein the HARQ feedback information of the downlink data transmission is received in the time slot associated with the configuration group identifier , Including: determining the first time slot offset value from the time slot offset value set according to the first information; and determining, according to the first time slot offset value, the information used to receive the downlink data transmission The target feedback slot of HARQ feedback information; according to the association relationship between the target feedback slot and the configuration group identifier, the HARQ feedback information of the downlink data transmission is received in the target feedback slot.
  • the method may further include: sending first information, where the first information is used to indicate that the downlink data transmission
  • the index of the first slot offset value between the HARQ feedback information of the downlink data transmission in the slot offset value set, and the target feedback slot determined according to the first slot offset value is the configuration group Identifies the associated time slot.
  • receiving HARQ feedback information for downlink data transmission in the time slot associated with the configuration group identifier may include: determining the first time slot offset from the time slot offset value set according to the first information Value; the target feedback slot is determined according to the first slot offset value; the HARQ feedback information of the downlink data transmission is received in the target feedback slot.
  • the target feedback time slot corresponding to the first information is the time slot associated with the downlink data transmission, therefore.
  • the receiving end determines the target feedback time slot according to the first information, it can directly send the HARQ feedback information of the downlink data transmission in the target feedback time slot.
  • determining the first time slot offset value from the time slot offset value set according to the first information may further include: determining the time slot offset value set associated with the configuration group identifier from a plurality of time slot offset value sets.
  • multiple time slot offset value sets are configured in the network, and different target feedback time slots can be associated with different time slot offset value sets. That is, before determining the downlink data transmission and reception timings corresponding to different target feedback time slots, the time slot offset value set corresponding to the target feedback time slot can be determined from multiple time slot offset value sets, and then the time slot offset value set corresponding to the target feedback time slot can be determined from the time slot offset value set. The slot offset value is determined in the offset value set.
  • the time slot offset value set mentioned here is different, which can mean that the length of the time slot offset value set is different; it can also mean that the time slot offset value in the time slot offset value set is different; or the length is different, the time slot The offset value is also different.
  • Different target feedback time slots correspond to different time slot offset value sets, so that the feedback bits on different target feedback time slots can be different, thereby saving signaling overhead.
  • the determining the time slot offset value set associated with the configuration group identifier from multiple time slot offset value sets may include : Determine the time slot offset value set associated with the configuration group identifier from the multiple time slot offset value sets according to the association relationship between the configuration group identifier and the time slot offset value set.
  • the association relationship between the target feedback time slot and the configuration group identifier may be pre-configured according to the communication protocol , Or can be pre-configured according to the signaling sent by the network side device.
  • the association relationship between the configuration group identifier and the time slot offset value set may be pre-configured according to a communication protocol, or may be based on signaling sent by a network side device Pre-configured.
  • the configuration group identifier may be one of a plurality of configuration group identifiers, and time slots with different parities of the index are associated with different configuration groups in the plurality of configuration group identifiers.
  • the configuration group identifier may be one of a plurality of configuration group identifiers, wherein the first time slot associated with any configuration group identifier in the plurality of configuration group identifiers Between the second time slots associated with the arbitrary configuration group identifier, there is one and only one time slot associated with other configuration group identifiers in the plurality of configuration group identifiers, where the first time slot is all For any time slot associated with the arbitrary configuration group identifier, the second time slot is the first time slot associated with the arbitrary configuration group identifier after the first time slot.
  • a communication device may be a terminal device or a chip that can be used in the terminal device.
  • the device has the function of realizing the above-mentioned first aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the device may include a communication unit and a processing unit.
  • the communication unit may be, for example, at least one of a receiving unit, a transmitting unit, a transceiver, a receiver, and a transmitter, and the communication unit may include a radio frequency circuit or an antenna.
  • the processing unit may be a processor.
  • the device can be a terminal device.
  • the device may further include a storage unit, and the storage unit may be a memory, for example.
  • the storage unit is used to store instructions.
  • the processing unit is connected to the storage unit, and the processing unit can execute instructions stored in the storage unit or instructions derived from other sources, so that the device executes the foregoing first aspect and various possible implementation methods.
  • the storage unit may be ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
  • the device when the device is a chip or a chip system, the device may include: a communication unit and a processing unit.
  • the communication unit may be, for example, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit as a communication interface on the chip or chip system.
  • the processing unit may be, for example, a processor, a processing circuit, or a logic circuit. The processing unit can execute instructions so that the chip in the terminal device executes the above-mentioned first aspect and the method in any possible implementation manner.
  • the processing unit may execute instructions in a storage unit
  • the storage unit may be a storage unit in a chip, such as a register, a cache, and the like.
  • the storage unit may also be located in the roadside unit but outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
  • the processor mentioned in any of the foregoing may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the execution of the program of the method in the foregoing first aspect.
  • a communication device may be a network device or a chip that can be used in the network device.
  • the device has the function of realizing the above-mentioned second aspect and various possible implementation modes. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the device may include a communication unit and a processing unit.
  • the communication unit may be, for example, at least one of a receiving unit, a transmitting unit, a transceiver, a receiver, and a transmitter, and the communication unit may include a radio frequency circuit or an antenna.
  • the processing unit may be a processor.
  • the device can be a network device.
  • the device may further include a storage unit, and the storage unit may be a memory, for example.
  • the storage unit is used to store instructions.
  • the processing unit is connected to the storage unit, and the processing unit can execute instructions stored in the storage unit or from other instructions, so that the device executes the above-mentioned second aspect and various possible implementation methods.
  • the storage unit may be ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
  • the device when the device is a chip or a chip system, the device includes a communication unit and a processing unit.
  • the communication unit may be, for example, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit as a communication interface on the chip or chip system.
  • the processing unit may be, for example, a processor, a processing circuit, or a logic circuit. The processing unit can execute instructions so that the chip in the network device executes the second aspect described above and the method in any possible implementation manner.
  • the processing unit may execute instructions in a storage unit
  • the storage unit may be a storage unit in a chip, such as a register, a cache, and the like.
  • the storage unit may also be located in the terminal device but outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
  • the processor mentioned in any of the foregoing may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the execution of the programs of the foregoing methods.
  • a computer-readable storage medium stores a program.
  • the program is executed by the processor, the steps of the communication method described in any aspect of the foregoing are implemented.
  • the computer-readable medium may store a computer program, and the computer program includes instructions for executing the method in the first aspect.
  • the computer-readable medium may store a computer program, and the computer program includes instructions for executing the method in the second aspect.
  • this application provides a computer program product containing instructions.
  • the computer program product runs on the computer, the computer is caused to execute the methods in the above aspects.
  • the computer program product when executed on a computer, the computer executes the method in the first aspect.
  • the computer program product when executed on a computer, the computer executes the method in the second aspect.
  • a communication system including any one or more of the aforementioned devices.
  • Figure 1 is an example diagram of a scenario of multi-station cooperative transmission
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the relationship between the feedback time slot and the receiving timing of an embodiment of the present application
  • FIG. 4 is a schematic diagram of a time domain resource allocation method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of receiving timing of an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a sequence of receiving timings according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the relationship between HARQ feedback information and receiving timing according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of the relationship between HARQ feedback information and receiving timing according to another embodiment of the present application.
  • FIG. 9 is a schematic diagram of the relationship between stations and time slots according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the relationship between stations and time slots according to another embodiment of the present application.
  • FIG. 11 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • Time Division Duplex Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G 5th Generation
  • New Radio New Radio
  • NR New Radio
  • the terminal equipment in the embodiments of this application may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile network (Public Land Mobile Network, PLMN) Terminal equipment, etc., this embodiment of the application does not limit this.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network equipment in the embodiments of the present application may be equipment used to communicate with terminal equipment.
  • the network equipment may be an evolved base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, or a cloud radio access network (Cloud Radio Access Network, CRAN) scenario wireless controller, or the network equipment can be relay station, access point, in-vehicle equipment, wearable equipment and network equipment in 5G network or network equipment in future evolution PLMN network, 5G
  • One or a group of antenna panels (including multiple antenna panels) of the base station in the system or may also be a network node constituting a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit). unit, DU), etc., the embodiments of the present application are not limited.
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements part of the functions of gNB
  • DU implements part of the functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), or the CU can be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal or a network device, or a functional module in the terminal or network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application encompasses a computer program that can be accessed from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • Multi-station coordinated transmission can also be called multi-station coordinated transmission.
  • Multi-station coordinated transmission technologies include coordinated beamforming, coordinated scheduling, joint transmission, dynamic point selection, dynamic point blanking, and other technologies.
  • Figure 1 is an example diagram of a scenario of multi-station cooperative transmission. As shown in Fig. 1, multiple transmission points 101 separated geographically cooperate to transmit data for one terminal 102 or jointly receive data sent by one terminal. It should be understood that in the scenario shown in FIG. 1, more transmission points 101 may be included.
  • the following uses a terminal as an example to introduce the communication method of an embodiment of the present application.
  • the method of transmitting HARQ feedback information for other devices is similar.
  • FIG. 2 is an exemplary flowchart of a communication method according to an embodiment of the application. It should be understood that FIG. 2 shows the steps or operations of the method, but these steps or operations are only examples, and the technical solution proposed in this application may also perform other operations or variations of each operation in FIG. 2.
  • S210 The terminal receives the configuration group identifier.
  • configurations (configuration, config) are grouped, and different configuration groups are assigned different identities (IDs), and the identity of the configuration group is referred to as the configuration group identifier for short.
  • the physical downlink control channel (PDCCH) configuration (config) group can be grouped, and different PDCCH configs are a group, and the PDCCH config ID is the configuration group identifier.
  • PDCCH physical downlink control channel
  • CORESET can be grouped, and the CORESET high-level parameter index is the configuration group identifier.
  • CORESET high-level parameter index is CORESET group ID.
  • CORESET id can be considered as the configuration group identifier.
  • PUCCH resource indicator information (PUCCH resource indicator) can be grouped, and PUCCH resource indicators in different ranges belong to different configuration groups.
  • PDSCH config groups can be configured, and the PDSCH config ID is the configuration group identifier.
  • an identifier may be assigned to the slot offset value set, and the identifier of the slot offset value set may be used as the configuration group identifier.
  • An example of the identification of the slot offset value set is an index. For example, when two time slot offset value sets are configured on the terminal, the index of one time slot offset value set may be 0, and the index of the other time slot offset value set may be 1. In this case, the configuration group identifier can be 0 or 1.
  • an identifier may be assigned to the slot offset value set, and the identifier of the slot offset value set may be used as the configuration group identifier.
  • An example of the identification of the slot offset value set is the high-level parameter index configured in CORESET.
  • the identifier of one timeslot offset value set may be the high-level parameter index 0 in CORESET
  • the identifier of the other timeslot offset value set may be the identifier in CORESET High-level parameter index 1.
  • the configuration group identifier can be the high-level parameter index in CORESET or the identifier of the slot offset value set.
  • the slot offset value set may also be referred to as a slot timing set (K1 set).
  • the slot offset value set includes one or more elements (K1), and each element is a slot offset value.
  • the meaning of each element (K1) in the slot offset value set is: the slot offset value between the PDSCH and the PUCCH or PUSCH that feeds back its corresponding HARQ-ACK information.
  • different configuration group identifiers may correspond to different network devices.
  • the terminal can perform information transmission with different network devices according to configurations corresponding to different configuration group identifiers.
  • S220 The terminal sends HARQ feedback information of downlink data transmission in the time slot associated with the configuration group identifier, where the downlink data transmission corresponds to the configuration group identifier.
  • the downlink data transmission corresponding to the configuration group identifier means that the downlink data transmission is the downlink data transmission scheduled by the downlink control information of the configuration transmission corresponding to the configuration group identifier, or refers to the downlink data transmission It is the downlink data transmission transmitted through the configuration group identifier corresponding to the configuration.
  • the configuration group ID corresponds to the downlink data transmission and may include the following meaning: the downlink control information for scheduling the downlink data transmission is the first downlink control information, and the first The CORESET group ID associated with the time-frequency resource of the downlink control information is the configuration group ID.
  • the configuration group identifier when the configuration group identifier is PUCCH resource indicator, the configuration group identifier corresponds to the downlink data transmission and may include the following meaning: the value in the PUCCH resource indicator field in the downlink control information for scheduling the downlink data transmission Identify the configuration group.
  • An example of downlink data transmission described here is PDSCH; an example of HARQ feedback information is hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
  • HARQ-ACK hybrid automatic repeat request acknowledgement
  • the time slot associated with the configuration group identifier is an uplink time slot
  • the uplink time slot mentioned here may refer to a time slot containing uplink symbols.
  • An example of the uplink symbol is uplink orthogonal frequency division multiplexing (OFDM).
  • the feedback can be differentiated according to different configuration group identifiers. Therefore, when different network devices schedule downlink data transmission, different networks The HARQ feedback information corresponding to the downlink data transmission scheduled by the device can be respectively transmitted in different time slots, so that the conflict of the HARQ feedback resources can be avoided, and the feedback performance of the HARQ feedback information can be improved.
  • the terminal when the terminal sends the HARQ feedback information of the downlink data transmission in the time slot associated with the configuration group identifier, it can be implemented in various ways.
  • the following describes the implementation of HARQ feedback information for downlink data transmission corresponding to the received configuration group identifier when the HARQ feedback codebook is a semi-static codebook and a dynamic codebook. the way.
  • the semi-static codebook means that the size of the HARQ-ACK codebook will not dynamically change with the actual data scheduling situation.
  • the size of the semi-static HARQ-ACK codebook is usually predefined according to the protocol or determined according to the parameters in the RRC configuration signaling.
  • the dynamic codebook means that the size of the HARQ-ACK codebook will dynamically change with the actual data scheduling situation.
  • the dynamic HARQ-ACK codebook size is usually generated based on the downlink assignment index (DAI) field in the DCI.
  • DCI downlink assignment index
  • the terminal sends the HARQ feedback information of the downlink data transmission corresponding to the configuration group identifier in the time slot associated with the received configuration group identifier.
  • the terminal determines the downlink data reception timing corresponding to the uplink time slot according to the time slot offset value set, and according to the association relationship between the uplink time slot and the configuration group identifier, transmits the HARQ feedback information for downlink data transmission.
  • the uplink time slot mentioned here is a time slot including uplink symbols.
  • the uplink time slot for which the downlink data reception timing is determined is referred to as the time slot to be feedback.
  • a semi-static codebook first determine the downlink data transmission and reception timing corresponding to the time slot to be fed back, and then determine whether the downlink data corresponding to the configuration group identifier associated with the time slot to be fed back is received at the receiving timing. data transmission. If received, the HARQ feedback information is sent, and the HARQ feedback information carries the actual reception status of the downlink data transmission. If not received, then send NACK message.
  • the terminal sends HARQ feedback information in the following manner.
  • the terminal determines the PDSCH reception timing corresponding to the time slot to be fed back according to the K1 set.
  • the K1 set may be pre-configured by the terminal according to the communication protocol, or may be configured by the terminal according to parameters in radio resource control (radio resource control, RRC) signaling sent by the network device.
  • RRC radio resource control
  • An implementation manner for the terminal to determine the PDSCH receiving timing corresponding to the time slot to be fed back according to the K1 set is as follows.
  • the terminal performs all or part of the following three operations for each K1 in the K1 set according to the order of K1 in the K1 set from large to small.
  • the time slot number of the time slot to be fed back (denoted as slot NU)
  • K1 and uplink and downlink subcarrier spacing (subcarrier spacing, SCS)
  • calculate the time slot number of the downlink time slot corresponding to the time slot to be fed back (denoted as slot NU) Is slot ND).
  • the downlink time slot corresponding to the time slot to be fed back may be referred to as the HARQ-ACK window corresponding to the time slot to be fed back.
  • the time slot corresponding to the slot ND belongs to the HARQ-ACK window.
  • the corresponding HARQ-ACK window includes slot 2, slot 3, and slot 4.
  • K1 represents the time slot interval from the time slot occupied by the PDSCH to the HARQ-ACK reporting the PDSCH.
  • the time slot offset corresponding to the K1 parameter is based on the parameter corresponding to PUCCH or PUSCH (numerology) To be sure.
  • the slot ND of the time slot occupied by the PDSCH is a set of one or more downlink time slot slots ND corresponding to the slot NU-K1 calculated according to the uplink slots NU and K1.
  • the terminal judges that there can be at most M PDSCHs in total. There is no overlap in the time domain, and they are arranged in a certain order.
  • PDSCH-timeDomainResourceAllocationList is a list that contains multiple elements, and each element indicates the starting symbol and the symbol length of the PDSCH time domain allocation.
  • time domain resource allocation lists are R
  • any time domain resource allocation method in R if a symbol in the time domain resource allocation is configured as an uplink symbol, then the time domain In terms of resource allocation, PDSCH cannot be allocated, that is, the time domain resource allocation is removed from R, so as to ensure that the remaining time domain allocation in R can be used for downlink data transmission.
  • all time domain resource allocation methods in R are usually in the same time slot.
  • Time-domain resource allocation in R is shown in Figure 4.
  • the same type of grid with filled content represents a time domain resource allocation method
  • Figure 4 includes six time domain resource allocation methods.
  • the remaining time domain allocation in R can be denoted as R1.
  • R1 since the uplink symbol is included in the first time domain resource allocation method, it can be deleted from R, so that R1 includes the second to sixth time domain resource allocation methods.
  • the terminal After obtaining R1, the terminal has different operations according to whether it supports the transmission of multiple PDSCHs in one time slot according to its own capabilities.
  • time-domain resource allocation method A in R1 that meets the preset rules (for example, the earliest end of time-domain resource allocation) in R1, and mark it as a candidate PDSCH receiving opportunity j.
  • the time domain resource allocation method with overlapping domains is also to mark the PDSCH reception opportunity j, thereby obtaining a PDSCH reception opportunity, which corresponds to a set of time domain resources, and the marked time domain resource allocation is removed from R the way. Repeat this step for the time domain resource allocation list in R1 until R is empty.
  • the fifth time-domain resource allocation method ends earliest, so it is marked as the candidate PDSCH reception opportunity 1. Since the second and third time-domain resource allocation methods have overlapping time-domain resources with the fifth time-domain resource allocation method, the second time-domain resource allocation method is combined with the third time-domain resource allocation method. The domain resource allocation method is also marked as PDSHC receiving opportunity 1. Then delete these three time domain resource allocation methods from R1. At this time, R1 includes the fourth time domain resource allocation method and the sixth time domain resource allocation method.
  • the sixth time domain resource allocation method ends earliest, so the sixth time domain resource allocation method is recorded as PDSCH receiving opportunity 2. Since the fourth time-domain resource allocation method and the sixth time-domain resource allocation method have overlapping time-domain resources, the fourth time-domain resource allocation method is also recorded as PDSCH receiving opportunity 2.
  • the PDSCH reception timings obtained at this time are sorted according to the sequence of the PDSCH reception timings obtained by the foregoing calculation method.
  • the reason why the PDSCH time-domain allocation method with repeated time-domain resources is marked as the same PDSCH reception opportunity is mainly because the existing protocol restrictions do not allow multiple PDSCHs to overlap in the time domain.
  • All PDSCH reception opportunities obtained after performing the above 3 operations for each K1 in the K1 set constitute a PDSCH reception opportunity set.
  • the PDSCH receiving timing set is sorted according to the value of the corresponding K1 from large to small (that is, the downlink slot is from small to large).
  • the terminal can sequentially arrange the PDSCH reception opportunities in the PDSCH reception time set in the order of the cell identifiers from small to large, as shown in FIG. 6.
  • the terminal determines the PDSCH receiving timing 1 Whether there is downlink data transmission corresponding to the time slot to be fed back. If yes, send the actual HARQ feedback information of the downlink data transmission in slot 4, for example, send HARQ-ACK; if not, send the HARQ feedback information of the downlink data transmission in slot 4, and the HARQ feedback information is NACK.
  • the terminal After the terminal determines the PDSCH receiving time set corresponding to the time slot to be fed back according to the K1 set, it can determine whether there is a time slot to be fed back at the PDSCH receiving time corresponding to the time slot to be fed back according to the association relationship between the time slot to be fed back and the configuration group identifier Corresponding downlink data transmission.
  • the association relationship between the time slot to be fed back and the configuration group ID may be pre-configured by the terminal according to the communication protocol, or may be pre-configured by the terminal according to RRC signaling.
  • the time slot to be fed back corresponds to The PDSCH corresponding to the time slot to be fed back is available at the PDSCH receiving time, and the actual HARQ-ACK information of the PDSCH can be sent in the time slot to be fed back; otherwise, it means that there is no time to be fed back at the PDSCH receiving time corresponding to the time slot to be fed back.
  • the PDSCH corresponding to the slot, and NACK is fed back in the time slot to be fed back.
  • the PDSCH corresponding to the configuration group identifier is received at the PDSCH receiving timing corresponding to the time slot to be fed back, it may be further determined whether the PDSCH receiving timing overlaps with the PDSCH receiving timings corresponding to other uplink time slots, where , The time slot to be fed back is associated with the same configuration group identifier with the other time slots. That is, it is determined whether the PDSCH receiving timings corresponding to different time slots to be fed back respectively overlap (for example, whether the PDSCH receiving timings corresponding to different PUCCHs overlap).
  • the actual HARQ-ACK information of the PDSCH can be sent in the time slot to be fed back; if there is overlap, the following operations need to be performed to determine the feedback The last time slot of the actual HARQ-ACK information of the PDSCH.
  • the terminal receives the first information sent by the network device, the first information is used to indicate the first time slot offset value (K1) between the PDSCH received at the PDSCH receiving time and the feedback time slot where the HARQ feedback information of the PDSCH is located Index in the slot offset value set.
  • the terminal determines the target feedback time slot of the PDSCH according to the first information, and the target feedback time slot may be understood as the time slot indicated by the network device for sending the HARQ feedback information of the PDSCH. For example, when the uplink and downlink subcarrier intervals are equal, the time slot number of the time slot where the PDSCH reception opportunity is located is added to the first time slot offset value indicated by the first information to obtain the time slot number of the target feedback time slot.
  • the time slot number of the time slot where the PDSCH receiving time is located is usually obtained by conversion based on uplink and downlink parameters.
  • the HARQ feedback information of the PDSCH is sent in the time slot to be fed back; if the target feedback of the PDSCH is determined according to the first information
  • the slot and the above-mentioned time slot to be fed back are not the same time slot, and the target feedback time slot is associated with the configuration group identifier corresponding to the PDSCH, and the HARQ feedback information of the PDSCH is sent on the target feedback time slot.
  • the HARQ-ACK window 1 corresponding to slot 4 includes slot 0, slot 1, and slot 2, and the HARQ-ACK window 2 corresponding to slot 6 includes slot 2. , Slot 3 and slot 4.
  • the slash-filled grid represents a PDSCH reception timing corresponding to slot 4.
  • this PDSCH reception timing is called PDSCH reception timing 1;
  • the vertical line-filled grid represents a PDSCH reception timing corresponding to slot 6.
  • this PDSCH reception timing is referred to as PDSCH reception timing 2.
  • the PDSCH receiving timing 1 corresponding to slot 4 and the PDSCH receiving timing 2 corresponding to slot 6 overlap in slot 2, or slot 2 is in the HARQ window of slot 4 and slot 6 at the same time.
  • the terminal When slot 4 and slot 6 are associated with the same configuration group identifier, the terminal first determines K1 from the K1 set according to the downlink control information (DCI) corresponding to the PDSCH received at PDSCH reception opportunity 1. For example, according to the DCI corresponding to the PDSCH received at PDSCH reception timing 1, it is determined that K1 is 4 from the K1 set. Assuming that the uplink and downlink subcarrier intervals are equal, 2+4 is equal to 6 and slot 6 is associated with the configuration group identification corresponding to the PDSCH, and it can be known that the actual HARQ feedback information of the PDSCH received at PDSCH reception time 1 should be fed back in slot 6. Of course, the HARQ feedback information of the PDSCH received at PDSCH reception opportunity 1 will also be fed back on slot 4, but the HARQ feedback information is NACK.
  • DCI downlink control information
  • the terminal sends HARQ feedback information for the implementation mode, you can refer to the foregoing implementation mode for the terminal to send HARQ feedback information when one K1 set is configured on the terminal.
  • the terminal before determining the PDSCH receiving timing corresponding to the time slot to be fed back, the terminal should first determine the K1 set corresponding to the time slot to be fed back from among the multiple K1 sets, and determine the target feedback time slot according to the first information Before, the K1 set corresponding to the first information should be determined from the multiple K1 sets.
  • the multiple K1 sets may be configured by the terminal according to the communication protocol, or configured by the terminal RRC parameters.
  • the lengths of the multiple K1 sets may be different, or the K1 in the multiple K1 sets are different.
  • the K1s in the multiple K1 sets are different. All K1s may be different, or some K1s may be different.
  • the terminal determines the K1 set corresponding to the time slot to be fed back from the multiple K1 sets
  • the terminal can be configured with the association relationship between the configuration group identifier and the K1 set according to the communication protocol or RRC parameters, and the terminal is configured according to the configuration The group identifier and the association relationship determine the K1 set corresponding to the time slot to be fed back.
  • each K1 set may be assigned an index, and the terminal is configured with an association relationship between the configuration group identifier and the K1 set index.
  • the terminal can determine the K1 set associated with the time slot to be fed back according to the association relationship between the time slot to be fed back and the configuration allocation identifier and the association relationship between the configuration group identifier and the K1 set index.
  • the terminal may also determine the K1 set associated with the time slot to be fed back from the multiple K1 sets according to other methods. For example, the terminal may configure the association relationship between the time slot to be fed back and the K1 set according to the communication protocol or RRC parameters. In this way, the terminal can directly learn the K1 set associated with the time slot to be fed back according to the association relationship.
  • the terminal may first determine the configuration group ID corresponding to the first information, and determine according to the association relationship between the configuration group ID and the K1 set K1 set corresponding to the first information.
  • Different time slots to be fed back correspond to different time slot offset value sets, so that the feedback bits on different time slots to be fed back can be different, thereby saving signaling overhead.
  • the size of the K1 set affects the size of the HARQ-ACK codebook to a certain extent, so different network devices can configure an appropriate K1 set according to their own traffic to control the overhead of feedback signaling. For example, if the traffic volume of the network is very small and the network equipment can control certain downlink slots not to send service data, the K1 set may not include the downlink slot when it is set, thereby reducing signaling overhead.
  • the foregoing describes the implementation manner in which the terminal sends HARQ feedback information in the time slot associated with the configuration group identifier when the HARQ feedback codebook is a semi-static codebook.
  • the following describes an implementation manner in which the terminal sends HARQ feedback information in the time slot associated with the configuration group identifier when the HARQ feedback codebook is a dynamic codebook.
  • the terminal receives the first information (the meaning of the first information is as described above), and according to the first The information determines the target feedback time slot for downlink data transmission, and then, it can be first determined whether there is an association relationship between the target feedback time slot and the configuration group identifier corresponding to the downlink data transmission. If so, the actual HARQ feedback information of the downlink data transmission, such as HARQ-ACK, is sent in the target feedback time slot; otherwise, the HARQ feedback information of the downlink data transmission is not sent in the target feedback time slot.
  • the first information the meaning of the first information is as described above
  • the terminal determines the K1 corresponding to the downlink data transmission according to the first information, the target determined according to the K1 There is an association relationship between the feedback time slot and the configuration group identifier corresponding to the downlink data transmission.
  • the terminal can directly send the HARQ feedback information of the downlink data transmission in the target feedback time slot, without determining whether the target feedback time slot is the time slot associated with the configuration group identifier corresponding to the downlink data transmission.
  • the terminal needs to determine the target K1 set from the multiple K1 sets first, and then determine the required K1 set from the target K1 set according to the first information K1.
  • the method of determining the target K1 set from these multiple K1 sets can refer to the previous related content, which will not be repeated here.
  • the association relationship between the time slot (including the aforementioned time slot to be fed back and the target feedback time slot) and the configuration group identifier can be configured by the network device to the terminal through signaling .
  • the network device can add a parameter to the time slot configuration or time slot format configuration of the time slot.
  • the parameter is the configuration group identifier associated with the time slot, for example, CORESET group id, CORESET id, or PUCCH resource indicator.
  • the terminal can learn the configuration group identifier associated with the time slot from the time slot configuration or time slot format configuration. It should be understood that when the symbols in the time slot are all downlink symbols, the parameter can be regarded as invalid, or the parameter is not configured.
  • the association relationship between the time slot (including the aforementioned time slot to be fed back and the target feedback time slot) and the configuration group identifier can also be specified by the protocol, and the terminal configures the association relationship between the time slot and the configuration group identifier according to the protocol.
  • the terminal may be configured with the association relationship between the time slot number and the configuration group according to the protocol.
  • the terminal can determine the association between the time slot and the configuration group ID according to the protocol relationship.
  • a fixed even-numbered time slot is associated with an even-valued configuration group ID
  • an odd-numbered time slot is associated with an odd-valued configuration group ID.
  • the terminal can determine the association relationship between the time slot and the configuration group identifier according to the protocol.
  • the protocol stipulates that the time slots containing the uplink symbols in each frame are sorted according to the slot number from small to large, and the interval is associated with different configuration group identifiers.
  • the configuration group identifiers are also sorted according to the value of the identifier from small to large.
  • the time slots containing uplink symbols in each subframe are time slots 3, 5, 7, and 8, that is, the time slots that can be used to send HARQ feedback information in each frame are time slots 3, 5, and 5, respectively. 7 and 8.
  • time slots 3, 5, 7, and 8 can be configured for TRP 1 and TRP 2.
  • the network device can add the same configuration group identifier to the configuration or format configuration of the time slots with time slot numbers 3 and 7, for example, the configuration group identifier corresponding to TRP 1, when the time slot numbers are 5 and 8.
  • the configuration group identifier corresponding to TRP 1 may be the CORESET group id and CORESET id corresponding to the time-frequency resource used when TRP 1 sends DCI to the terminal, or may be the value indicated by the PUCCH resource indicator in the DCI, or It can be the config of the PDSCH scheduled by the DCI, or it can be the PDCCH config corresponding to the DCI, etc.;
  • the configuration group identifier corresponding to TRP 2 can be the CORESET group id corresponding to the time-frequency resource used when TRP 2 sends DCI to the terminal , CORESET id, or may be the value indicated by the PUCCH resource indicator in the DCI, or may be the config of the PDSCH scheduled by the DCI, or may be the PDCCH config corresponding to the DCI, etc.
  • the network device may configure the association relationship between the time slot (including the aforementioned time slot to be fed back and the target feedback time slot) and the K1 set for the terminal through signaling. For example, the network device may add a parameter to the time slot configuration or time slot format configuration of the time slot.
  • the parameter is the identifier of the K1 set associated with the time slot, for example, the index of the K1 set associated with the time slot.
  • the terminal can learn the K1 set associated with the time slot from the time slot configuration or the time slot format configuration. It should be understood that when the symbols in the time slot are all downlink symbols, the parameter can be regarded as invalid, or the parameter is not configured.
  • the network device configures the association between the time slot and the K1 set, so that when different TRPs correspond to different K1 sets, the network side device can adjust the resources used to feed back HARQ information to different network devices according to the network load.
  • association relationship between the time slot (including the aforementioned time slot to be fed back and the target feedback time slot) and the K1 set can also be specified by the agreement, and the terminal determines the association relationship between the time slot and the K1 set according to the protocol.
  • the protocol may specify that the even-numbered time slot associated index value is an even number K1 set, and the odd-numbered time slot associated index value is an odd value K1 set. Assuming that two K1 sets are configured on the terminal, one K1 set is K1 set-1, and the index of K1 set-1 is 0, and the other K1 set is K1 set-2, and the index of K1 set-2 is 1. Then the terminal can determine that the even-numbered time slot is associated with K1 set-1 and the odd-numbered time slot is associated with K1 set-2 according to the protocol.
  • the uplink time slots include 3, 5, 7, and 8. Assuming that two K1 sets are configured on the terminal, one K1 set is K1 set-1, and the index of K1 set-1 is 0, and the other K1 set is K1 set-2, and the index of K1 set-2 is 1. Then the terminal can determine that time slot 8 is associated with K1 set-1, and time slot 3, time slot 5, and time slot 7 are associated with K1 set-2 according to the foregoing protocol.
  • even-numbered time slots are always associated with the K1 set with a smaller index
  • odd-numbered time slots are always associated with the K1 set with a larger index.
  • the terminal can determine the association relationship between the time slot and the K1 set according to the protocol.
  • the network device can configure the association relationship between the time slot and the configuration group identifier and the association relationship between the configuration group identifier and the K1 set through signaling. .
  • the terminal can determine the association relationship between the time slot and the K1 set according to the two association relationships.
  • the configuration method of the association relationship between the time slot and the configuration group identifier can refer to the foregoing content;
  • the configuration method of the association relationship between the configuration group identifier and the K1 set can refer to the configuration method of the association relationship between the time slot and the K1 set.
  • the time slot in the configuration mode of the association relationship between the slot and the K1 set can be replaced with the configuration group identifier.
  • the configuration group identifier may be the PUCCH resource indicator identifier, the PDCCH-Config identifier, the CORESET identifier, the CORESET group identifier, or a higher layer index within the CORESET as referred to in the DCI. The situation is similar.
  • the CORESET group ID can be the CORESET group id; it can also be an index assigned to the CORESET group. For example, if there are two CORESET groups, the ID of one CORESET group can be 0, and the ID of the other CORESET group can be 1.
  • the PUCCH resource indicator can be the value of the PUCCH resource indicator; it can also be: all values of the PUCCH resource indicator are divided into different ranges, and different ranges are assigned different indexes, and the index of the range to which the value of the PUCCH resource indicator belongs It can be used as PUCCH resource indicator.
  • the PDCCH-Config identifier can be PDCCH-Config id; it can also be an index allocated to PDCCH-Config.
  • PDCCH-Config id there are two types of PDCCH-Config, and the identifier of one PDCCH-Config can be 0, and the other PDCCH-Config.
  • the identifier can be 1.
  • the CORESET identifier can be CORESET id; it can also be an index assigned to CORESET. For example, if there are two CORESETs, one of the CORESET identifiers can be 0, and the other CORESET identifier can be 1.
  • the first example is a first example:
  • the protocol pre-prescribes the association relationship between the time slot and the configuration group identifier, where the protocol specifies that the even-numbered time slot is associated with the configuration group identifier 1, and the odd-numbered time slot is associated with the configuration group identifier 2.
  • the even-numbered time slot is associated with the even-numbered configuration group identifier
  • the odd-numbered time slot is associated with the odd-numbered configuration group identifier.
  • the even-numbered time slot is associated with a configuration group identifier with a smaller value
  • the odd-numbered time slot is associated with a configuration group identifier with a larger value.
  • the terminal According to the protocol, it can be known that the even-numbered time slot is associated with the configuration group ID 1, and the odd-numbered time slot is associated with the configuration group ID 2.
  • the terminal receives the DCI, and the DCI schedules the PDSCH (denoted as PDSCH 1). It is assumed that the PDSCH 1 is transmitted on the downlink time slot with the time slot number 2, and the time slot offset value index indicated by the first information in the DCI is 0. In addition, assume that the configuration group identifier corresponding to the DCI is configuration group identifier 1.
  • HARQ-ACK codebook is static codebook
  • the terminal determines the PDSCH reception timing corresponding to the time slot to be fed back with the time slot number of 4 according to the K1 set.
  • the receiving timing of the PDSCH corresponding to the time slot to be fed back is contained in two time slots, namely, time slot number 0 and time slot number 2.
  • the PDSCH reception timing corresponding to the time slot to be fed back includes two PDSCH reception timings, one reception timing (i.e., reception timing 1) is located in the downlink time slot with time slot number 0, and the other reception timing (i.e., reception timing) 2) Located in the downlink timeslot with timeslot number 2.
  • the terminal receives PDSCH1 in a downlink time slot with a time slot number of 2, and determines that the configuration group identifier corresponding to the DCI that schedules the PDSCH1 is configuration group identifier 1. Because the time slot to be fed back is associated with the configuration group identifier 1, the HARQ-ACK information of the PDSCH1 can be sent in the time slot to be fed back (time slot number is 4).
  • the PDSCH receiving timing corresponding to the uplink time slot with the time slot number 6 includes receiving timing 3 and receiving timing 2
  • the PDSCH receiving timing corresponding to the time slot to be fed back includes receiving timing 1 and receiving timing 2.
  • the time slot to be fed back includes receiving timing 1 and receiving timing 2.
  • the time slot to be fed back includes receiving timing 1 and receiving timing 2.
  • the time slot to be fed back includes receiving timing 1 and receiving timing 2.
  • the time slot to be fed back (time slot number is 4) and the uplink time slot with time slot number 6 are associated with the same configuration group identifier.
  • receiving opportunity 2 is in the feedback time slot (time slot).
  • the terminal In the receiving opportunity set corresponding to the uplink time slot number 3) and the time slot number 6, the terminal also needs to determine the target feedback time slot of PDSCH1 according to the first information in the DCI.
  • the time slot offset value index indicated by the first information in the DCI is 0, it can be known that the K1 indicated by the first information is 2, and the time slot number of the time slot in which PDSCH1 is located is 2 (assuming the uplink and downlink subcarrier intervals are the same), so The number of the target feedback slot is 4. Since the time slot to be fed back (time slot number is 4) and the target feedback time slot are the same time slot, the terminal should send the actual HARQ-ACK of PDSCH 1 on the time slot to be fed back (time slot number is 4) Information, and NACK is fed back in the uplink slot with slot number 6 as the HARQ feedback information for PDSCH1.
  • the terminal determines according to the first information and K1 set that the target feedback slot number of the HARQ-ACK information of PDSCH1 is 4, that is, the uplink slot with slot number 4 is the HARQ-ACK of PDSCH1 Information target feedback slot.
  • the terminal sends the HARQ-ACK information of the PDSCH1 in the target feedback slot.
  • the protocol pre-prescribes the association relationship between the time slot and the configuration group ID, where the protocol specifies the association between the even number time slot and the configuration group ID 1, and the odd number time slot and the configuration group ID 2 are associated.
  • the even-numbered time slot is associated with the even-numbered configuration group identifier
  • the odd-numbered time slot is associated with the odd-numbered configuration group identifier.
  • the even-numbered time slot is associated with a configuration group identifier with a smaller value
  • the odd-numbered time slot is associated with a configuration group identifier with a larger value.
  • the protocol also pre-prescribes the association relationship between even-numbered time slots and K1 set.
  • the protocol specifies that odd-numbered time slots are associated with K1 set index 1, and even-numbered time slots are associated with K1 set index 2.
  • the even-numbered time slot is associated with the even-numbered K1 set index
  • the odd-numbered time slot is associated with the odd-numbered K1 set index.
  • the even-numbered time slot is associated with a smaller K1 set index value
  • the odd-numbered time slot is associated with a larger K1 set index value.
  • the even-numbered time slot is associated with the even-numbered configuration group identifier
  • the odd-numbered time slot is associated with the odd-numbered configuration group identifier
  • the even-numbered time slot is associated with the even-numbered K1 set index
  • the odd-numbered time slot is associated with the odd value.
  • the configuration group ID 1 is 0,
  • the terminal knows that the even-numbered time slot is associated with the configuration group ID 1
  • the odd-numbered time slot is associated with the configuration group ID 2.
  • Associated, even-numbered time slots are associated with K1 set-1, and odd-numbered time slots are associated with K1 set-2.
  • the terminal receives the DCI, and the DCI schedules the PDSCH (denoted as PDSCH 1). Assume that the PDSCH 1 is transmitted on the downlink time slot with the time slot number 2, and the time slot offset value index indicated by the first information in the DCI is 0. In addition, assume that the configuration group identifier corresponding to the DCI is configuration group identifier 1.
  • HARQ-ACK codebook is static codebook
  • the terminal determines the receiving timing of the time slot to be fed back with the time slot number of 4.
  • the reception timing of the PDSCH corresponding to the time slot to be fed back includes two PDSCH reception timings, one reception timing (i.e. reception timing 1) is located in the downlink time slot with time slot number 0, and the other reception timing (i.e. reception timing 2) Located in the downlink timeslot with timeslot number 2.
  • the terminal receives the PDSCH 1 in the downlink time slot with the time slot number 2, and determines that the configuration group identifier corresponding to the DCI for scheduling the PDSCH 1 is the configuration group identifier 1. Because the time slot to be fed back is associated with the configuration group identifier 1, the HARQ-ACK information of the PDSCH 1 can be sent in the time slot to be fed back (time slot number is 4).
  • the PDSCH receiving timing corresponding to the uplink time slot with the time slot number 6 includes receiving timing 3 and receiving timing 2
  • the PDSCH receiving timing corresponding to the time slot to be fed back includes receiving timing 1 and receiving timing 2.
  • the time slot to be fed back (time slot number is 4) and the uplink time slot with time slot number 6 are associated with the same configuration group identifier.
  • the receiving time 2 is in the time slot to be fed back (time slot number). 4)
  • the terminal In the receiving opportunity set corresponding to the uplink time slot with the time slot number 6, the terminal also needs to determine the target feedback time slot of PDSCH1 according to the first information in the DCI. It can be seen that the configuration group identifier 1 and K1 set-1 are associated with the uplink time slot with the time slot number of 4, and it can be seen that the index indicated by the first information in the DCI is K1 in K1 set-1.
  • the time slot offset value index indicated by the first information in the DCI is 0, K1 with index 0 in K1set-1 is 2, and the time slot number of the time slot in which PDSCH1 is located is 2 It can be seen that the slot number of the target feedback slot is 4. Because the time slot to be fed back (time slot number is 4) and the target feedback time slot are the same time slot, the terminal should send the actual HARQ-ACK of PDSCH 1 on the time slot to be fed back (time slot number is 4) Information, and NACK is fed back in the uplink slot with slot number 6 as the HARQ feedback information for PDSCH1.
  • the terminal should determine the target feedback time slot of PDSCH1 according to K1 set-1 and the first information.
  • the terminal should send the HARQ-ACK information of the PDSCH 1 in the target feedback slot with the slot number of 4, that is, the slot number of the target feedback slot of the HARQ-ACK information of the PDSCH 1 is 4.
  • the third example is a first example.
  • the protocol stipulates that the time slots containing uplink symbols in each frame are sorted in ascending order of time slot number, and the sorted time slots are alternately associated with different configuration group IDs, where the configuration group ID is also based on the value of the ID Sort from small to large, and configure the group ID with the smallest time slot associated value.
  • the terminal receives the DCI, and the DCI schedules the PDSCH (denoted as PDSCH 1). It is assumed that the PDSCH 1 is transmitted on the downlink time slot with the time slot number 2, and the time slot offset value index indicated by the first information in the DCI is 0. In addition, assume that the configuration group identifier corresponding to the DCI is configuration group identifier 1.
  • HARQ-ACK codebook is static codebook
  • the terminal determines the PDSCH reception timing corresponding to the time slot to be fed back with the time slot number of 3 according to the K1 set. It is assumed that the receiving timing of the PDSCH corresponding to the time slot to be fed back is contained in two time slots. For example, if the PDSCH reception timing corresponding to the time slot to be fed back includes two PDSCH reception timings, one reception timing (i.e., reception timing 1) is located in the downlink time slot with time slot number 0, and the other reception timing (i.e., reception timing) 2) Located in the downlink timeslot with timeslot number 2.
  • the terminal receives PDSCH1 in the downlink time slot with the time slot number 2. From the configuration group identifier corresponding to the DCI scheduling the PDSCH1 as the configuration group identifier 1, and the time slot to be fed back is associated with the configuration group identifier 1, it can be seen that the PDSCH1 can be sent in the time slot to be fed back (time slot number is 3) HARQ-ACK information.
  • the terminal also needs to determine the target feedback time slot of PDSCH1 according to the first information in the DCI.
  • the time slot offset value index indicated by the first information in the DCI is 0, it can be seen that K1 indicated by the first information is 1, and the time slot number of the time slot where PDSCH1 is located is 2, so the target The slot number of the feedback slot is 3. Since the time slot to be fed back (time slot number is 4) and the target feedback time slot are the same time slot, the terminal should send the actual HARQ-ACK of PDSCH 1 on the time slot to be fed back (time slot number is 4) Information, and NACK is fed back in the uplink slot with slot number 5 as the HARQ feedback information of PDSCH1.
  • the terminal determines according to the first information and K1 set that the target feedback slot number of the HARQ-ACK information of PDSCH1 is 3, that is, the uplink slot with slot number 3 is the HARQ-ACK of PDSCH1 Information target feedback slot.
  • the terminal sends the HARQ-ACK information of the PDSCH1 in the target feedback slot.
  • the protocol stipulates that the time slots containing the uplink symbols in each frame are sorted in ascending order of the slot number, the configuration group identifiers are sorted according to the value of the identifiers in ascending order, and the K1 set is sorted according to the K1 set index in ascending order
  • the sorted time slots are alternately associated with different configuration group IDs and different K1 sets.
  • the configuration group ID with the smallest slot associated value is the smallest slot number
  • the slot with the smallest slot number has the index Small K1 set association.
  • the uplink time slot includes time slots 3, 4, 5, and 7, and they are sorted from smallest to largest; the configuration group ID 1 is "0", the configuration group ID 2 is "1", K1 set includes K1 set-1 and K1 set -2, the index of K1 set-1 is 0, the index of K1 set-2 is 1, and the terminal knows according to the protocol that time slot 3 is associated with configuration group identification 1, time slot 4 is associated with configuration group identification 2, and time slot 5 Associated with configuration group ID 1, time slot 7 is associated with configuration group ID 2, time slot 3 is associated with K1 set-1, time slot 4 is associated with K1 set-2, time slot 5 is associated with K1 set-1, and time slot 7 is associated with K1 set -2.
  • K1 set-1 ⁇ 1, 3 ⁇ .
  • the terminal receives the DCI, and the DCI schedules the PDSCH (denoted as PDSCH 1). Assume that the PDSCH 1 is transmitted on the downlink time slot with the time slot number 2, and the time slot offset value index indicated by the first information in the DCI is 0. In addition, assume that the configuration group identifier corresponding to the DCI is configuration group identifier 1.
  • HARQ-ACK codebook is static codebook
  • the receiving timing of the PDSCH corresponding to the time slot to be fed back includes two PDSCH receiving timings, one receiving timing (i.e. receiving timing 1) is located in the downlink time slot with slot number 0, and the other receiving timing (i.e. receiving timing) 2) Located in the downlink timeslot with timeslot number 2.
  • the terminal receives PDSCH 1 in the downlink timeslot with timeslot number 2. From the configuration group ID corresponding to the DCI scheduling the PDSCH1 as configuration group ID 1, and the time slot to be fed back with the time slot number 3 is associated with the configuration group ID 1, it can be seen that the time slot to be fed back (time slot number is 3 ) Send the HARQ-ACK information of the PDSCH 1.
  • the terminal Assuming that the PDSCH receiving timing corresponding to the uplink time slot with the time slot number 5 includes receiving timing 3, and receiving timing 3 overlaps with receiving timing 2, the terminal also needs to determine the target feedback time slot of PDSCH 1 according to the first information in the DCI.
  • the index indicated by the first information in the DCI is K1 in K1 set-1.
  • the time slot offset value index indicated by the first information in the DCI is 0, K1 with index 0 in K1 set-1 is 1, and the time slot number of the time slot where PDSCH 1 is located It is known that the time slot number of the target feedback time slot is 3.
  • the terminal Since the target feedback time slot and the time slot to be fed back are the same time slot (the time slot number is 3), the terminal should send the actual HARQ-ACK information of PDSCH 1 on the time slot with the time slot number 3, and The uplink time slot with the time slot number of 5 feeds back NACK as the HARQ feedback information of PDSCH 1.
  • the slot offset value index indicated by the first information in the DCI is 0, K1 with index 0 in K1set-1 is 1, and the slot number of the time slot in which PDSCH1 is located is 2. It can be seen that the terminal should send the HARQ-ACK information of the PDSCH 1 in the time slot with the time slot number 3, that is, the time slot number of the target feedback time slot of the HARQ-ACK information of the PDSCH 1 is 3.
  • the network device configures the association relationship between the time slot and the configuration group identifier for the terminal through RRC signaling.
  • the time slot configuration or time slot format configuration of time slot 3 and time slot 5 can be added with the information of configuration group identifier 1
  • the time slot configuration of time slot 7 and time slot 8 or the time slot configuration of time slot 8 can be added with configuration The information of the group identifier 2, where time slot 3, time slot 5, time slot 7 and time slot 8 are all time slots containing uplink symbols.
  • the terminal receives the DCI, and the DCI schedules the PDSCH (denoted as PDSCH 1). It is assumed that the PDSCH 1 is transmitted on the downlink time slot with the time slot number 2, and the time slot offset value index indicated by the first information in the DCI is 0. In addition, assume that the configuration group identifier corresponding to the DCI is configuration group identifier 1.
  • HARQ-ACK codebook is static codebook
  • the terminal determines the PDSCH reception timing corresponding to the time slot to be fed back with the time slot number of 3 according to the K1 set. It is assumed that the receiving timing of the PDSCH corresponding to the time slot to be fed back is contained in two time slots. For example, if the PDSCH reception timing corresponding to the time slot to be fed back includes two PDSCH reception timings, one reception timing (i.e., reception timing 1) is located in the downlink time slot with time slot number 0, and the other reception timing (i.e., reception timing) 2) Located in the downlink timeslot with timeslot number 2.
  • the terminal receives PDSCH1 in the downlink time slot with the time slot number 2. From the configuration group ID corresponding to the DCI scheduling the PDSCH1 as configuration group ID 1, and the uplink time slot with slot number 3 is associated with configuration group ID 1, it can be seen that the time slot to be fed back (time slot number is 3) The HARQ-ACK information of the PDSCH 1 is sent.
  • the terminal also needs to determine the target feedback time slot of PDSCH1 according to the first information in the DCI.
  • the slot offset value index indicated by the first information in the DCI is 0, it can be seen that K1 indicated by the first information is 1, and the slot number of the time slot in which PDSCH 1 is located is 2, then The slot number of the target feedback slot is 3.
  • the target feedback time slot and the time slot to be fed back are the same time slot, so the terminal should send the actual HARQ-ACK information of PDSCH 1 in the time slot to be fed back (time slot number is 3) , And NACK is fed back in the uplink slot with slot number 5 as the HARQ feedback information of PDSCH 1.
  • the terminal determines according to the first information and K1 set that the target feedback slot number of the HARQ-ACK information of PDSCH 1 is 3, that is, the uplink slot with slot number 3 is the HARQ of PDSCH 1 -The target feedback slot for ACK information.
  • the terminal sends the HARQ-ACK information of the PDSCH 1 in the target feedback time slot.
  • the network device configures the association relationship between the time slot and the configuration group identifier for the terminal through RRC signaling.
  • the time slot configuration or time slot format configuration of time slot 3 and time slot 5 can be added with the configuration group identifier 1 and K1 set-1 information
  • the time slot configuration or time slot format configuration of time slot 7 and time slot 8 Information for configuring group identification 2 and K1 set-2 can be added to it.
  • Time slot 3, time slot 5, time slot 7 and time slot 8 are time slots containing uplink symbols.
  • the terminal receives the DCI, and the DCI schedules the PDSCH (denoted as PDSCH 1). Assume that the PDSCH 1 is transmitted on the downlink time slot with the time slot number 2, and the time slot offset value index indicated by the first information in the DCI is 0. In addition, assume that the configuration group ID corresponding to the DCI is configuration group ID 1.
  • HARQ-ACK codebook is static codebook
  • the receiving timing of the PDSCH corresponding to the time slot to be fed back includes two PDSCH receiving timings, one receiving timing (i.e. receiving timing 1) is located in the downlink time slot with slot number 0, and the other receiving timing (i.e. receiving timing) 2) Located in the downlink timeslot with timeslot number 2.
  • the terminal receives PDSCH 1 in the downlink timeslot with timeslot number 2. From the configuration group ID corresponding to the DCI scheduling the PDSCH 1 as configuration group ID 1, and the uplink time slot with slot number 3 is associated with configuration group ID 1, it can be seen that the time slot to be fed back (time slot number is 3 ) Send the HARQ-ACK information of the PDSCH1.
  • the terminal Assuming that the PDSCH receiving timing corresponding to the uplink time slot with the time slot number 5 includes receiving timing 3, and receiving timing 3 overlaps with receiving timing 2, the terminal also needs to determine the target feedback time slot of PDSCH 1 according to the first information in the DCI.
  • the index indicated by the first information in the DCI is K1 in K1 set-1.
  • the time slot offset value index indicated by the first information in the DCI is 0, K1 with index 0 in K1 set-1 is 1, and the time slot number of the time slot where PDSCH 1 is located It is known that the time slot number of the target feedback time slot is 3.
  • the terminal Since the target feedback time slot and the time slot to be fed back (slot number 3) are the same time slot, the terminal should send the actual HARQ-ACK of PDSCH 1 on the time slot to be fed back (slot number 3) Information, and NACK is fed back in the uplink slot with slot number 5 as the HARQ feedback information of PDSCH 1.
  • the terminal should send the HARQ-ACK information of the PDSCH 1 in the time slot with the time slot number 3, that is, the time slot number of the target feedback time slot of the HARQ-ACK information of the PDSCH 1 is 3.
  • time slots containing uplink symbols are allocated to different TRPs at sequential intervals, for example, in the manner shown in FIG. 10, different TRPs can obtain relatively balanced uplink resources.
  • the relationship between the time slot and K1 set is specified in the protocol, no additional signaling overhead will be added.
  • the time slot number of the time slot may also be referred to as the number of the time slot or the index of the time slot.
  • FIG. 11 is an exemplary flowchart of a communication method according to an embodiment of the application. It should be understood that FIG. 11 shows the steps or operations of the method, but these steps or operations are only examples, and the technical solution proposed in this application may also perform other operations or variations of each operation in FIG. 11.
  • S1110 The network device sends the configuration group identifier.
  • the implementation of this step corresponds to the configuration group identifier received by the terminal in S210.
  • S210 For the specific content, refer to S210, which will not be repeated here.
  • S1120 The network device receives HARQ feedback information of downlink data transmission in the time slot associated with the configuration group identifier, where the downlink data transmission corresponds to the configuration group identifier.
  • the implementation of this step corresponds to the HARQ feedback information sent by the terminal in S220.
  • S220 For the specific content, refer to S220, which will not be repeated here.
  • pre-set and pre-defined can be achieved by pre-saving corresponding codes, tables or other information that can be used to indicate related information in the device (for example, including terminal devices and network devices).
  • This application does not limit the specific implementation method.
  • the method implemented by the terminal device may also be implemented by a component (such as a chip or circuit) configurable in the terminal, and the method implemented by the roadside unit may also be implemented by the method configurable in the terminal.
  • the components (such as chips or circuits) of the roadside unit are implemented.
  • FIG. 12 shows a schematic structural diagram of a communication device 1200 according to an embodiment of the present application. It should be understood that the communication apparatus 1200 can implement any function of the terminal device in the embodiment of FIG. 2.
  • the communication device may be a terminal, or a component (for example, a chip or a circuit) configurable in the terminal.
  • the communication device 1200 includes a receiving unit 1210 and a sending unit 1220, where the receiving unit 1210 and the sending unit 1220 may be collectively referred to as a communication unit.
  • the receiving unit 1210 and the sending unit 1220 may be implemented by a transceiver unit.
  • the communication device 1200 may correspond to the terminal in the above method embodiment, for example, it may be a terminal, or a chip or chip system configured in the terminal.
  • the communication device 1200 may correspond to the terminal in the method shown in FIG. 2, and the communication device 1200 may include a unit for performing operations performed by the terminal in the method shown in FIG. 2.
  • the units in the communication device 1200 and the other operations and/or functions described above are used to implement the corresponding procedures of the method in FIG. 2.
  • the receiving unit 1210 can be used to perform S210 and/or the steps involved in terminal-side receiving in the above embodiments
  • the sending unit 1220 can be used to perform S220 and/or the above implementations.
  • the example involves the steps sent on the terminal side.
  • the communication device 1200 may further include a processing unit 1230.
  • the processing unit 1230 may be used to schedule the receiving unit 1210 to perform S210 and the sending unit 1220 to perform S220, and/or the steps involved in terminal-side processing, control, or determination in the foregoing embodiment.
  • the receiving unit 1210 in the communication device 1200 may correspond to the transceiver 1320 in the terminal device 1300 shown in FIG. 13, and the processing unit 1230 in the communication device 1200 may correspond to The processor 1310 in the terminal device 1300 shown in FIG. 13.
  • the receiving unit 1210 in the communication device 1200 may be an input interface, an interface circuit, an input circuit or a pin, and the sending unit 1220 may be an output
  • the interface, interface circuit, output circuit or pin, the processing unit 1230 may be a processor, a processing circuit or a logic circuit.
  • the communication device 1200 may correspond to the network device in the above method embodiment, for example, it may be a network device or a chip configured in the network device.
  • the communication device 1200 may correspond to the network device in the method shown in FIG. 11.
  • the communication apparatus 1200 may include a unit for performing operations performed by the network device in the method shown in FIG. 11.
  • each unit in the communication device 1200 and other operations and/or functions described above are used to implement the corresponding procedures in the method shown in FIG. 11.
  • the sending unit 1220 may be used to perform S1110 in the method shown in FIG. 11 and/or the steps involved in network-side sending in the foregoing embodiment
  • the receiving unit 1210 may be used to perform S1120 and/or the foregoing steps in the method shown in FIG. 11
  • the embodiment involves the steps of receiving on the network side.
  • the communication device 1200 may further include a processing unit 1230.
  • the processing unit 1230 may be used to schedule the receiving unit 1210 to perform S1120 and the sending unit 1220 to perform S1110, and/or the steps involved in network-side processing, control, or determination in the foregoing embodiment.
  • the receiving unit and the sending unit in the communication device 1200 may correspond to the transceiver unit 1410 shown in FIG. 14, and the processing unit 1230 in the communication device 1200 may correspond to FIG. The processor 1422 shown in 14.
  • the receiving unit 1210 in the communication device 1200 may be an input interface, an interface circuit, an input circuit or a pin, and the sending unit 1220 may be an output
  • the interface, interface circuit, output circuit or pin, the processing unit 1230 may be a processor, a processing circuit or a logic circuit.
  • FIG. 13 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
  • the terminal device includes a processor 1310 and a transceiver 1320.
  • the terminal device further includes a memory 1330.
  • the processor 1310, the transceiver 1320, and the memory 1330 can communicate with each other through an internal connection path to transfer control and/or data signals.
  • the memory 1330 is used to store computer programs, and the processor 1310 is used to download from the memory 1330. Call and run the computer program to control the transceiver 1330 to send and receive signals.
  • the terminal device may further include an antenna 1340 for transmitting uplink data or uplink control signaling output by the transceiver 1320 through a wireless signal.
  • the foregoing processor 1310 and the memory 1330 may be combined into a processing device, and the processor 1310 is configured to execute program codes stored in the memory 1330 to implement the foregoing functions.
  • the memory 1330 may also be integrated in the processor 1310 or independent of the processor 1310.
  • the aforementioned transceiver 1320 may be referred to as a transceiver unit.
  • the transceiver 1320 may include a receiver (or called a receiver, a receiving circuit) and a transmitter (or called a transmitter, a transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the terminal device shown in FIG. 13 can implement various processes involving the terminal device in the method embodiment shown in FIG. 2.
  • the operation and/or function of each module in the terminal device are respectively for implementing the corresponding process in the foregoing method embodiment.
  • the above-mentioned processor 1310 can be used to execute the actions described in the previous method embodiments implemented by the terminal device, and the transceiver 1320 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
  • the transceiver 1320 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
  • the foregoing terminal device may further include a power supply 1350, which is used to provide power to various devices or circuits in the terminal device.
  • a power supply 1350 which is used to provide power to various devices or circuits in the terminal device.
  • the terminal device may also include one or more of the input unit 1360, the display unit 1370, the audio circuit 1380, the camera 1390, and the sensor 1301.
  • the audio circuit also It may include a speaker 1382, a microphone 1384, and so on.
  • FIG. 14 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, it may be a schematic structural diagram of a base station.
  • the base station can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
  • the base station may include one or more transceiver units 1410.
  • the transceiver unit 1410 may also be called a transceiver, a transceiver circuit, or a transceiver, and so on.
  • Each transceiver unit 1410 may include at least one antenna 1411 and a radio frequency unit 1412.
  • the transceiver unit 1410 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter, transmitting circuit).
  • the transceiving unit 1410 is mainly used for the transceiving of radio frequency signals and the conversion of radio frequency signals and baseband signals, for example, for sending information to and receiving information sent by terminal equipment.
  • the processing unit 1420 is the control center of the base station, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the processing unit 1420 may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the transceiver unit 1410 and the processing unit 1420 may be physically arranged together, or may be physically separated, that is, a distributed base station.
  • the processing unit 1420 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as an LTE network) of a single access mode, or may respectively support wireless access networks of different access modes.
  • a wireless access network such as an LTE network
  • Access network such as LTE network, 5G network or other networks.
  • the processing unit 1420 may include a memory 1421 and a processor 1422.
  • the memory 1421 is used to store necessary instructions and data.
  • the processor 1422 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 1421 and the processor 1422 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the base station shown in FIG. 14 can implement various processes involving network devices in the method shown in FIG. 11.
  • the operations and/or functions of the various modules in the base station are to implement the corresponding procedures in the foregoing method embodiments.
  • the processing unit 1420 can be used to perform the actions described in the previous method embodiments implemented by the network device, and the transceiving unit 1410 can be used to perform the operations described in the previous method embodiments that the network device sends to or receives from the terminal device .
  • the transceiving unit 1410 can be used to perform the operations described in the previous method embodiments that the network device sends to or receives from the terminal device .
  • An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the method in the foregoing method embodiment.
  • the processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • the steps of the above method can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the steps shown in FIG. 2 or FIG. 11 The method of any one of the embodiments is shown.
  • the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes the steps shown in FIG. 2 or FIG. 11 The method of any one of the embodiments is shown.
  • the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.
  • 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. For example, 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, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.
  • the network equipment in the above-mentioned device embodiments completely corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit transmits the receiving or In the sending step, other steps except sending and receiving can be executed by the processing unit (processor).
  • the processing unit processor
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • each functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions (programs).
  • programs When the computer program instructions (programs) are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • 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. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or 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 function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication et un dispositif de communication applicables à un scénario de transmission multipoint coordonnée. Dans le procédé de la présente invention, un appareil de réseau envoie un ID de groupe attribué, et un appareil de terminal reçoit l'ID de groupe attribué de manière correspondante. L'appareil terminal envoie des informations de retour HARQ pour une transmission de données de liaison descendante dans un créneau temporel associé à l'ID de groupe attribué. L'appareil de réseau reçoit les informations de retour HARQ dans le créneau temporel associé à l'ID de groupe attribué. La transmission de données de liaison descendante correspond à l'ID de groupe attribué. La solution technique de la présente invention facilite l'amélioration de la performance de transmission d'informations de retour HARQ, ce qui permet d'améliorer les performances de retour pour la transmission de données de liaison descendante.
PCT/CN2020/100452 2019-07-29 2020-07-06 Procédé de communication et dispositif de communication Ceased WO2021017765A1 (fr)

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