WO2020220337A1 - Harq信息反馈的方法和设备 - Google Patents

Harq信息反馈的方法和设备 Download PDF

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Publication number
WO2020220337A1
WO2020220337A1 PCT/CN2019/085357 CN2019085357W WO2020220337A1 WO 2020220337 A1 WO2020220337 A1 WO 2020220337A1 CN 2019085357 W CN2019085357 W CN 2019085357W WO 2020220337 A1 WO2020220337 A1 WO 2020220337A1
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WO
WIPO (PCT)
Prior art keywords
channel
terminal device
channel group
information corresponding
harq
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PCT/CN2019/085357
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English (en)
French (fr)
Inventor
吴作敏
林亚男
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201980095600.1A priority Critical patent/CN113711518A/zh
Priority to EP19927127.1A priority patent/EP3965331A4/en
Priority to PCT/CN2019/085357 priority patent/WO2020220337A1/zh
Publication of WO2020220337A1 publication Critical patent/WO2020220337A1/zh
Priority to US17/511,528 priority patent/US20220052796A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes

Definitions

  • the embodiments of the application relate to the field of communications, and more specifically, to a method and device for HARQ information feedback.
  • the 5G system or New Radio (NR) system, supports data transmission on unlicensed spectrum (unlicensed spectrum).
  • NR-U unlicensed spectrum
  • LBT Listen Before Talk
  • the terminal device After the terminal device receives the downlink channel sent by the network device on the unlicensed carrier, it needs to send corresponding Hybrid Automatic Repeat reQuest (HARQ) information to the network device on the unlicensed carrier.
  • HARQ Hybrid Automatic Repeat reQuest
  • the network device can group the downlink channels scheduled for it, and the terminal device performs corresponding HARQ information feedback according to different channel groups. Due to the uncertainty of the channel usage rights on the unlicensed spectrum, the HARQ information corresponding to certain channel groups may need to be transmitted multiple times before being received by the network device. In this process, how the terminal equipment processes the HARQ information corresponding to each channel group has become an urgent problem to be solved.
  • This application provides a HARQ information feedback method and device, which can effectively process the HARQ information corresponding to each channel group, and realize the transmission of HARQ information on an unlicensed frequency band.
  • a HARQ information feedback method which includes: a terminal device determines HARQ information corresponding to a first channel group; when the terminal device receives a second channel that meets a preset condition, and/or receives When the first indication information for instructing to reset the HARQ information is reached, the HARQ information corresponding to the first channel group is reset.
  • the preset condition includes: the HARQ process number of the second channel is the same as the HARQ process number of the first channel in the first channel group, and/or the HARQ process number of the channel group to which the second channel belongs The group number is the same as the group number of the first channel group.
  • a HARQ information feedback method including: a terminal device receives second indication information sent by a network device, where the second indication information indicates a parameter for feeding back HARQ information.
  • the method further includes: the terminal device receives third indication information, where the third indication information is used to indicate a feedback manner of HARQ information, and the feedback manner of HARQ information includes a first feedback manner and a second feedback manner.
  • a method for HARQ information feedback including: a network device sends second indication information to a terminal device, the second indication information indicating a parameter for feeding back HARQ information.
  • the parameter includes, for example, a feedback mode of HARQ information, and the feedback mode of HARQ information includes a first feedback mode and a second feedback mode.
  • the HARQ information corresponding to the channel group with the same group number sent by the terminal device each time has the same codebook size
  • the codebook size of the HARQ information corresponding to the channel group with the same group number sent by the terminal device each time is variable, for example, based on the flip indication information received by the terminal device.
  • a terminal device which can execute the foregoing first aspect or any optional implementation method of the first aspect.
  • the terminal device may include a functional module for executing the foregoing first aspect or any possible implementation manner of the first aspect.
  • a terminal device in a fifth aspect, can execute the foregoing second aspect or any optional implementation method of the second aspect.
  • the terminal device may include a functional module for executing the foregoing second aspect or any possible implementation of the second aspect.
  • the network device may execute the foregoing third aspect or any optional implementation method of the third aspect.
  • the network device may include a functional module for executing the foregoing third aspect or any possible implementation of the third aspect.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or any possible implementation of the first aspect, or the second aspect or the first aspect.
  • the method in any possible implementation of the two aspects.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the third aspect or the method in any possible implementation manner of the third aspect.
  • a communication device including a processor.
  • the processor is used to call and run a computer program from the memory, so that the device installed with the communication device executes the method in any possible implementation manner of the first aspect or the first aspect, or executes the second or second aspect described above Any possible implementation of the method.
  • a communication device including a processor.
  • the processor is used to call and run a computer program from the memory, so that the device installed with the chip executes the foregoing third aspect or any possible implementation method of the third aspect.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute the method in the first aspect or any possible implementation of the first aspect, or execute the second Aspect or any possible implementation of the second aspect.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute the foregoing third aspect or any possible implementation of the third aspect.
  • a computer program product including computer program instructions that cause a computer to execute the method in the first aspect or any possible implementation of the first aspect, or execute the second aspect or The method in any possible implementation of the second aspect.
  • a computer program product including computer program instructions that cause a computer to execute the foregoing third aspect or the method in any possible implementation manner of the third aspect.
  • a computer program which when it runs on a computer, causes the computer to execute the method in the first aspect or any possible implementation of the first aspect, or execute the second or second aspect.
  • the method in any possible implementation of the aspect.
  • a computer program which when running on a computer, causes the computer to execute the method in the third aspect or any possible implementation of the third aspect.
  • a communication system including terminal equipment and network equipment.
  • the network device is configured to send second indication information to the terminal device, where the second indication information indicates a parameter used to feed back HARQ information.
  • the terminal device is configured to: receive the second indication information sent by the network device; and determine a parameter for feeding back HARQ information according to the second indication information.
  • Fig. 1 is a schematic diagram of a possible wireless communication system applied by an embodiment of the present application.
  • Figure 2 shows two ways of feeding back HARQ information.
  • FIG. 3 is a schematic flowchart of a HARQ information feedback method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of resetting HAQR information based on HARQ process number according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of resetting HAQR information based on the group number of the channel group according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of resetting HAQR information based on the group number of the channel group according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of resetting HAQR information based on the group number of the channel group according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of resetting HAQR information based on flipping instruction information according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of resetting HAQR information based on flipping instruction information according to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a HARQ information feedback method according to another embodiment of the present application.
  • FIG. 11 is a schematic diagram of two different HARQ feedback modes in an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Fig. 17 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA broadband code division multiple access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A advanced Advanced long term evolution
  • NR New Radio
  • NR NR system evolution system
  • LTE-based access to unlicensed spectrum LTE-U System
  • NR-based access to unlicensed spectrum NR-U system on unlicensed spectrum
  • Universal Mobile Telecommunication System UMTS
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • future 5G systems or other communication systems etc.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system in the embodiment of the present application may also be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, a standalone (SA) network deployment scenario, etc.
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • Fig. 1 is a schematic diagram of a possible wireless communication system applied by an embodiment of the present application.
  • the wireless communication system 100 may include a network device 110.
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network device can be a relay station, access point, vehicle-mounted device, wearable device, Network equipment in the future network side equipment or the future evolution of the public land mobile network (Public Land Mobile Network, PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network device can be a relay station, access point, vehicle-mounted device, wearable device, Network equipment in the future network side equipment or the future evolution of the public land mobile network (Public Land Mobile Network, PLMN), etc.
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the terminal device 120 may be mobile or fixed.
  • the terminal device 120 may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a 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 present application does not limit this.
  • D2D direct terminal
  • the network device 110 may provide services for a cell, and the terminal device 120 communicates with the network device 110 through transmission resources used by the cell, such as frequency domain resources, or spectrum resources.
  • the cell may be a cell corresponding to the network device 110.
  • the cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here may include: Metro cell, Micro cell , Pico cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the wireless communication system 100 may include a plurality of network devices, and the coverage area of each network device may include other numbers of terminal devices.
  • the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity.
  • Unlicensed frequency spectrum is the spectrum that can be used for radio equipment communication divided by countries and regions. This spectrum is usually considered as shared spectrum, that is, communication equipment in different communication systems only needs to meet the requirements of the country or region on the spectrum. The spectrum can be used according to the requirements of the regulations set, and there is no need to apply for a proprietary spectrum authorization from the government.
  • LBT listen before talk
  • MCOT Maximum Channel Occupancy Time
  • Channel Occupancy Time Refers to the length of time for signal transmission using channels of unlicensed spectrum after successful LBT.
  • the channels occupied by signals within this time length may be discontinuous. Among them, a COT cannot exceed 20ms at most, and the time length occupied by signal transmission within the COT does not exceed MCOT.
  • Base Station Channel Occupation Time also called COT initiated by the base station, it refers to a channel occupation time obtained by the base station after successful LBT.
  • the channel occupation time of the base station can not only be used for downlink transmission, but also can be used for UE for uplink transmission under certain conditions.
  • UE-initiated COT Also known as UE-initiated COT, it refers to a channel occupation time obtained after the UE successfully performs LBT.
  • Downlink transmission opportunity A group of downlink transmissions performed by a base station includes, for example, one or more downlink transmissions.
  • the group of downlink transmissions is continuous transmission, that is, there is no gap between multiple downlink transmissions, or there is a group of downlink transmissions. The gap, but the gap is less than or equal to a preset value such as 16 ⁇ s. If the gap between two downlink transmissions performed by the base station is greater than 16 ⁇ s, then the two downlink transmissions are considered to be two downlink transmission opportunities.
  • Uplink transmission opportunity A group of uplink transmissions performed by a UE includes, for example, one or more uplink transmissions.
  • the group of uplink transmissions is continuous transmission, that is, there is no gap between multiple uplink transmissions, or the group of uplink transmissions There is a gap but the gap is less than or equal to a preset value such as 16 ⁇ s. If the gap between two uplink transmissions performed by the UE is greater than 16 ⁇ s, then the two uplink transmissions are considered to be two uplink transmission opportunities.
  • the NR system on the unlicensed frequency band can support independent network deployment, that is, it does not rely on the carrier on the licensed frequency band to provide auxiliary services.
  • the terminal device after receiving the PDSCH on the unlicensed carrier, the terminal device needs to send the HARQ-ACK feedback corresponding to the PDSCH on the unlicensed carrier.
  • the NR system supports the dynamic determination of HARQ feedback timing.
  • the network device schedules the terminal device to receive the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) through Downlink Control Information (DCI).
  • the DCI includes indication information of physical uplink control channel (PUCCH) resources used to transmit HARQ information corresponding to the PDSCH.
  • the indication information may include:
  • PUCCH resource indicator used to determine PUCCH resources
  • the HARQ timing indication information is used to determine the value in the pre-configured HARQ timing set. For example, when the HARQ timing indication information is 000, it may indicate k0 in the HARQ timing set, and when the HARQ timing indication information is 001, it may indicate HARQ. K1 in the time series set.
  • the HARQ timing indication information may be used to determine the PUCCH resource for transmitting the HARQ corresponding to the PDSCH, and may also be used to indicate a state where the HARQ information corresponding to the PDSCH is not fed back first.
  • the pre-configured HARQ timing set further includes a value kL indicating an invalid resource indication.
  • the HARQ timing indication information is 111, it may indicate kL in the HARQ timing set. At this time, if the HARQ timing indication information received by the terminal device is 111, it means that the corresponding PUCCH resource cannot be determined temporarily.
  • the DCI may also include a Downlink Assignment Index (DAI).
  • DAI includes DAI count information and/or total DAI information.
  • the DAI count information is used to indicate the current
  • the scheduled PDSCH is the number of PDSCHs in the current HARQ feedback window, and the total number of DAI information is used to indicate how many PDSCHs are scheduled in the current HARQ feedback window.
  • the terminal device can determine the PUCCH resource used for feeding back HARQ information and the position of the HARQ information in the codebook transmitted on the PUCCH resource according to the above information.
  • the HARQ information in the embodiments of the present application may also be referred to as HARQ-ACK information, that is, ACK or NACK information obtained based on the decoding result after the PDSCH is decoded, or the occupancy information of the terminal device during feedback.
  • HARQ-ACK information that is, ACK or NACK information obtained based on the decoding result after the PDSCH is decoded, or the occupancy information of the terminal device during feedback.
  • the network device can group its scheduled PDSCH, and indicate the PDSCH grouping information to the terminal device through indication signaling, so that the terminal device can receive the PDSCH
  • the corresponding HARQ information is fed back according to different channel groups. If the HARQ information corresponding to a certain group of PDSCH of the terminal device fails to be transmitted due to LBT failure during one transmission, or the network device fails to detect the HARQ information expected to be transmitted by the terminal device on a certain PUCCH resource, the network device can pass the DCI Trigger the terminal device to retransmit the HARQ information.
  • the terminal device when it retransmits the HARQ information corresponding to a certain group of PDSCH, it can maintain the same codebook size as the initial transmission, or it can add new HARQ information during the retransmission. Detailed description will be given below in conjunction with FIG. 2.
  • the terminal device may send HARQ information to the network device in the two HARQ information feedback modes shown in FIG. 2, for example.
  • the HARQ information described in the embodiments of the present application includes HARQ-ACK information or HARQ-NACK information.
  • the network equipment groups its scheduled downlink channels.
  • Each channel group (or called a data group or called a HARQ feedback group) has a group number, such as group number #0 (referred to as a group for short). #0), group number #1 (abbreviated as group #1), group number #2 (abbreviated as group #2), etc.
  • the terminal device determines the PUCCH resource used to send the HARQ information corresponding to each channel group according to the instruction signaling sent by the network device.
  • the terminal device sends the HARQ information corresponding to channel group #0 to the network device on PUCCH resource 0 based on the instructions of the network device.
  • the channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, PDSCH 3, and PDSCH 4.
  • the terminal device sends the HARQ information corresponding to channel group #0 and channel group #1 to the network device on PUCCH resource 1, where channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, PDSCH 3, and PDSCH 4, channel group #1 includes PDSCH 5, PDSCH 6, PDSCH 7, and PDSCH 8.
  • channel group #0 when the HARQ information corresponding to channel group #0 is initially transmitted and retransmitted on PUCCH resource 0 (abbreviated as PUCCH 0) and PUCCH resource 1 (abbreviated as PUCCH 1), the size of the HARQ codebook remains unchanged. That is, if the HARQ information corresponding to the PDSCH included in the channel group #0 has been indicated to be transmitted on a certain uplink PUCCH resource, no new PDSCH will be added in the channel group #0, and the HARQ information corresponding to the channel group #0 is in When PUCCH resource 0 and PUCCH resource 1 are transmitted, channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, PDSCH 3, and PDSCH 4.
  • the terminal device sends the HARQ information corresponding to channel group #0 to the network device on PUCCH resource 0 based on the instructions of the network device, where channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, PDSCH 3. PDSCH 4 and PDSCH 5. Based on the instructions of the network equipment, the terminal device sends the HARQ information corresponding to channel group #0 to the network equipment on PUCCH resource 1, where channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, PDSCH 3, PDSCH 4, PDSCH 5 , PDSCH 6, PDSCH 7, and PDSCH 8.
  • PUCCH resource 0 transmits PDSCH 0 to PDSCH 5 in channel group #0
  • PUCCH resource #1 transmits PDSCH 0 to PDSCH 8 in channel group #1.
  • the size of the HARQ codebook fed back twice has changed.
  • the HARQ feedback based on the method 1 is referred to as the HARQ feedback method with a constant codebook size
  • the HARQ feedback based on the method 2 is referred to as the HARQ feedback method with a variable codebook size. It should be understood that in way 2, in some cases, the size of the HARQ codebook fed back twice may also be unchanged.
  • the terminal device After the terminal device performs a transmission of HARQ information, since it is not sure whether the network device has received the HARQ information, the terminal device buffers the HARQ information until the terminal device thinks that the network device has successfully received the HARQ information.
  • the HARQ information in the buffer can be cleared.
  • clearing HARQ information is also referred to as resetting HARQ information.
  • the embodiment of the present application provides a HARQ information feedback method.
  • the terminal device can reset the HARQ information corresponding to a certain channel group at an appropriate time, so as to realize the transmission of HARQ information on the unlicensed spectrum.
  • FIG. 3 shows a HARQ information feedback method 300 according to an embodiment of this application.
  • the method may be executed by a terminal device, and the terminal device may be, for example, the terminal device 120 in FIG. 1 described above.
  • This method can be applied to unlicensed spectrum or licensed spectrum.
  • the method includes some or all of the following steps. among them:
  • the terminal device determines HARQ information corresponding to the first channel group.
  • the terminal device resets the HARQ information corresponding to the first channel group when receiving the second channel that meets the preset condition and/or when receiving the first indication information for instructing to reset the HARQ information .
  • the preset condition includes: the HARQ process number of the second channel is the same as the HARQ process number of the first channel in the first channel group, and/or the group number of the channel group to which the second channel belongs is the same as the HARQ process number of the first channel in the first channel group.
  • the group numbers of the first channel group are the same.
  • the terminal device feedbacks the HARQ information of the corresponding channel group based on the grouping of downlink channels by the network device. After determining the HARQ information corresponding to the first channel group, the terminal device buffers the HARQ information corresponding to the first channel group, and clears the HARQ information corresponding to the first channel group when receiving the second channel that meets the preset condition, that is, the terminal The device resets the HARQ information corresponding to the first channel group when receiving the second channel that meets the preset conditions; or clears the HARQ information corresponding to the first channel group when receiving the first indication information for instructing the resetting of HARQ information Information, that is, the HARQ information corresponding to the first channel group is reset when the terminal device receives the first indication information. Therefore, the HARQ information corresponding to a certain channel group can be reset at an appropriate time, which saves bit overhead and realizes the effective transmission of HARQ information on the unlicensed spectrum.
  • This method can be applied to the aforementioned two HARQ feedback methods, that is, the HARQ feedback method in which the codebook size of the HARQ information corresponding to the channel group is unchanged during each transmission, and the code of the HARQ information corresponding to the channel group during each transmission.
  • This variable HARQ feedback mode is, the HARQ feedback method in which the codebook size of the HARQ information corresponding to the channel group is unchanged during each transmission, and the code of the HARQ information corresponding to the channel group during each transmission.
  • the terminal device receives the first channel group sent by the network device, and determines the HARQ information corresponding to the first channel group. And the HARQ information corresponding to the first channel group is buffered until the terminal device receives the second channel that meets the preset condition or receives the first indication information for instructing to reset the HARQ information.
  • the terminal device transmits the HARQ information corresponding to the first channel group at least once.
  • the terminal device before receiving the second channel or the first indication information, the terminal device initially transmits the HARQ information corresponding to the first channel group, or performs the initial transmission and at least one retransmission.
  • the code of the HARQ information corresponding to the first channel group transmitted multiple times may be the same, for example, the mode 1 shown in FIG. 2; or the codebook size of the HARQ information corresponding to the first channel group that is sent multiple times may be different, for example, the mode 2 shown in FIG.
  • the terminal device receiving the second channel that meets the preset condition includes: the terminal device receives the downlink channel that meets the preset condition for scheduling the second channel, and/or the terminal device receives the preset condition Condition of the data carried in the second channel.
  • the terminal device may reset the HARQ information corresponding to the first channel group.
  • the terminal device may reset the HARQ information corresponding to the first channel group. That is, when the PDCCH meets the preset condition, the HARQ information corresponding to the first channel group can be reset, regardless of the PDSCH scheduled by the PDCCH.
  • the terminal device when a terminal device receives a PDSCH that meets a preset condition, or receives a PDCCH and the PDCCH is used to schedule a PDSCH that meets a preset condition, the terminal device resets the HARQ information corresponding to the first channel group.
  • the time interval between the terminal device sending the HARQ information corresponding to the first channel group and the terminal device receiving the second channel is greater than or equal to a first preset value; and/or the terminal device sends the first channel
  • the time interval between the HARQ information corresponding to the group and the terminal device receiving the first indication information is greater than or equal to the first preset value.
  • the first preset value is determined by the network device according to its processing time.
  • the network device may determine its processing time for channels or signals such as PDSCH, PDCCH, PUCCH, etc.
  • the first preset value may be configured by the network device for the terminal device, or agreed upon by a protocol.
  • the terminal device When the terminal device receives the second channel that meets the conditions, if the time interval between the time when the second channel is received and the time when the HARQ information is transmitted, for example, the time when the HARQ information is transmitted for the first or last time is greater than or equal to For the first preset value, the terminal device resets the HARQ information corresponding to the first channel group.
  • the terminal device receives the first indication information for instructing HARQ information reset, if the time when the first indication information is received is the same as the time when the HARQ information is sent, for example, the first time or the last time the HARQ information is sent When the time interval between the moments is greater than or equal to the first preset value, the terminal device resets the HARQ information corresponding to the first channel group.
  • the preset condition includes: the HARQ process number of the second channel is the same as the HARQ process number of the first channel in the first channel group.
  • the terminal device if the HARQ process number of the second channel received by the terminal device is the same as the HARQ process number of any channel in the first channel group, the terminal device resets the HARQ corresponding to the first channel group.
  • the terminal device After the terminal device receives a HARQ process scheduled by the network device, if it receives the HARQ process scheduled by the network device again, it indicates that the network device has obtained the HARQ information corresponding to the HARQ process scheduled last time. Therefore, the HARQ information corresponding to the channel group to which the HARQ process belongs to the last scheduled HARQ process can be cleared.
  • the network device instructs the terminal device to send the HARQ information corresponding to the first channel group, which is channel group #0, on PUCCH resource 0, where channel group #0 includes PDSCH 0 and PDSCH 1, and PDSCH 0 and PDSCH 1
  • the HARQ process numbers are 0 and 1, respectively. If the terminal device fails to send the HARQ information corresponding to channel group #0 on PUCCH resource 0 due to LBT failure or other reasons, or the network device fails to detect the HARQ information corresponding to the channel group #0 on PUCCH resource 0, then the network device can indicate The terminal device retransmits the HARQ information corresponding to channel group #0 on PUCCH resource 1.
  • the network device instructs the terminal device to send HARQ information corresponding to channel group #0 and HARQ information corresponding to channel group #1 on PUCCH resource 1, where channel group #0 includes PDSCH 0 and PDSCH 1, channel group # 1 Including PDSCH 2, PDSCH 3 and PDSCH 4.
  • the network device continues to send channel group #2 to the terminal device, and the channel group #2 includes PDSCH 5, PDSCH 6, and PDSCH 7. It can be found that the HARQ process number of PDSCH 7 in channel group #2 is the same as the HARQ process number of PDSCH 0 in channel group #0, and both are 0. Then the terminal device can reset the corresponding channel group #0 when receiving PDSCH 7 HARQ information.
  • the network equipment Since the network equipment has repeatedly used the HARQ process number 0, it means that the HARQ information of the corresponding channel group when the HARQ process number 0 was used before has been successfully received, and the HARQ process ends, so the terminal device can perform the HARQ of the first channel group. Information is reset.
  • the HARQ process number of PDSCH 8 is the same as the HARQ process number of PDSCH 1 in channel group #0, and both are 1. If the terminal device does not receive the PDSCH 7, the terminal device can also reset the HARQ information corresponding to channel group #0 when receiving the PDSCH 8. That is, the second channel that meets the preset condition includes at least one of PDSCH 7 and PDSCH 8, that is, the terminal device resets the HARQ information corresponding to the first channel group when it receives the PDSCH that meets the preset condition for the first time.
  • the process numbers of PDSCH 9 and PDSCH 10 are 2 or 3, respectively, which are the same as the process numbers of PDSCH 2 and PDSCH 3 in channel group #1. Therefore, the terminal device receives at least one of PDSCH 9 and PDSCH 10 At this time, the HARQ information corresponding to channel group #1 can be reset, that is, the HARQ information corresponding to PDSCH 2 and PDSCH 3 can be cleared.
  • the network device instructs the terminal equipment to send HARQ information corresponding to channel group #0 on PUCCH resource 3
  • the HARQ information is in channel group #0 HARQ information corresponding to PDSCH 8, PDSCH 9, and PDSCH 10.
  • the terminal device resets the HARQ information corresponding to the first channel group when receiving the second channel and the second channel includes newly transmitted data.
  • the terminal device may determine whether the second channel includes newly transmitted data through the New Data Indicator (NDI) included in the DCI used to schedule the second channel. For example, when the NDI information is overturned, it indicates that the second channel includes new data. The channel includes newly transmitted data.
  • NDI New Data Indicator
  • the network device may treat the HARQ process received by the previously scheduled terminal device as a NACK when it does not receive the HARQ information from the terminal device.
  • the terminal device receives the same HARQ process rescheduling of the network device and the data of the HARQ process is newly transmitted data, that is, the network device receives
  • the terminal device feedbacks the ACK information corresponding to the HARQ process last time
  • the terminal device considers that the HARQ information corresponding to the channel group to which the HARQ process belongs during the last feedback can be cleared.
  • the preset condition includes: the group number of the channel group to which the second channel belongs is the same as the group number of the first channel group.
  • the terminal device if the group number of the channel group to which the second channel belongs is the same as the group number of the first channel group received by the terminal device, the terminal device resets the HARQ information corresponding to the first channel group.
  • This implementation is particularly suitable for HARQ feedback with a constant codebook size.
  • the terminal device After the first uplink resource used to send the HARQ information corresponding to the first channel group is determined, or after the HARQ information corresponding to the first channel group is sent on the first resource, if the terminal device receives the data scheduled by the network device again For the PDSCH of the first channel group (that is, the group number is the same), since the size of the initial transmission and retransmission of the HARQ codebook corresponding to the first channel group remains unchanged, the HARQ information corresponding to the PDSCH cannot be the same as the first uplink resource.
  • the HARQ information corresponding to the first channel group on the above is transmitted together, which indicates that the network device has obtained the HARQ information corresponding to the first channel group, so that the HARQ information corresponding to the first channel group can be cleared.
  • the network device instructs the terminal device to transmit the HARQ information corresponding to the first channel group, that is, channel group #0 on PUCCH resource 0, where channel group #0 includes PDSCH 0 and PDSCH 1. If the terminal device fails to send the HARQ information corresponding to channel group #0 on PUCCH resource 0 due to LBT failure or other reasons, or the network device fails to detect the HARQ information corresponding to the channel group #0 on PUCCH resource 0, then the network device can indicate The terminal device retransmits the HARQ information corresponding to channel group #0 on PUCCH resource 1.
  • the network device instructs the terminal device to send HARQ information corresponding to channel group #0 and HARQ information corresponding to channel group #1 on PUCCH resource 1, where channel group #0 includes PDSCH 0 and PDSCH 1, channel group # 1 Including PDSCH 2, PDSCH 3 and PDSCH 4.
  • the network device continues to send channel group #2 to the terminal device.
  • the channel group #2 includes PDSCH 5, PDSCH 6 and PDSCH 7.
  • the terminal device sends the HARQ information corresponding to channel group #2 on PUCCH resource 2 based on the instructions of the network device .
  • the network device After channel group #2, the network device sends PDSCH 8, PDSCH 9, and PDSCH 10 to the terminal device. It can be found that the group number of the channel group to which PDSCH 8, PDSCH 9, and PDSCH 10 belong is the same as the group number of the first channel group, and they are all #0. Then when the terminal device receives at least one of PDSCH 8, PDSCH 9, and PDSCH 10, since the group number of the channel group to which they belong is the same as the group number of the first channel group, the terminal device can reset the corresponding channel group HARQ information, that is, HARQ information corresponding to the channel group whose reset group number is #0.
  • the terminal device can reset the HARQ information corresponding to the first channel group, that is, clear the HARQ information corresponding to PDSCH 0 and PDSCH 1.
  • the network device instructs the terminal equipment to send HARQ information corresponding to channel group #0 on PUCCH resource 3
  • the HARQ information is in channel group #0 HARQ information corresponding to PDSCH 8, PDSCH 9, and PDSCH 10.
  • the second channel is located after the first uplink resource in the time domain, and the first uplink resource is used to send HARQ information corresponding to the first channel group.
  • the first uplink resource is determined by the terminal equipment according to HARQ timing indication information corresponding to the channels in the first channel group.
  • the first uplink resource is an uplink resource used when the terminal device transmits the HARQ information corresponding to the first channel group for the first time.
  • the second channel is located after the first uplink resource, that is, after the terminal device initially transmits the HARQ information corresponding to the first channel group on the first uplink resource, if the terminal device receives the second channel that meets the condition, or If the terminal device receives the second channel that meets the condition and the time interval between the second channel and the first uplink resource is greater than or equal to the first preset value, the terminal device resets the HARQ corresponding to the first channel group information.
  • the second uplink resource is located after the first uplink resource, and the second uplink resource is used to send HARQ information corresponding to the channel group to which the second channel belongs.
  • the second uplink resource may be, for example, the terminal device according to the first uplink resource.
  • the HARQ timing indication information corresponding to the two channels is determined.
  • the terminal device After transmitting the HARQ information corresponding to the first channel group on the first uplink resource, the terminal device receives the second channel, and determines the second uplink resource based on the HARQ timing indication information of the channel in the channel group to which the second channel belongs . Since the size of the HARQ codebook for the two feedbacks remains the same, when the terminal device needs to feed back HARQ information corresponding to the channel group with the same group number on the two PUCCH resources according to the instructions of the network device, it indicates that the group number is reused by the network device. Then the network device should have received the HARQ information corresponding to the first channel group transmitted on the first PUCCH resource, so the terminal device can clear the HARQ information of each channel in the first channel group transmitted on the first PUCCH resource at this time .
  • the terminal device receives the network
  • the PDSCH scheduled by the device belongs to the first channel group (that is, the group number is the same), and the network device re-instructs the second uplink resource for transmitting its HARQ information when scheduling the PDSCH, because the HARQ code corresponding to the first channel group
  • the size of the original codebook for initial transmission and retransmission remains unchanged, and the HARQ information corresponding to the PDSCH cannot be transmitted together with the HARQ information corresponding to the first channel group on the first uplink resource. This indicates that the network device has obtained the first uplink resource.
  • the HARQ information corresponding to a channel group so that the HARQ information corresponding to the first channel group can be cleared.
  • the network device instructs the terminal device to send the HARQ information corresponding to the first channel group, which is channel group #0, on PUCCH resource 0, where channel group #0 includes PDSCH 0 and PDSCH 1, and PDSCH 0 and PDSCH 1 correspond
  • the HARQ timing indication information is 3 and 2 respectively.
  • the HARQ timing indication information of 3 indicates that the difference between PDSCH 0 and PUCCH resource 0 is 3 time slots.
  • the HARQ timing indication information of 2 indicates that the difference between PDSCH 1 and PUCCH resource 0 is 2 time slots.
  • the HARQ timing indication information L in FIG. 6 indicates that the network device has not yet determined the feedback position of the HARQ information of the PDSCH.
  • the network device can indicate The terminal device retransmits the HARQ information corresponding to channel group #0 on PUCCH resource 1.
  • the network device instructs the terminal device to send HARQ information corresponding to channel group #0 and HARQ information corresponding to channel group #1 on PUCCH resource 1, where channel group #0 includes PDSCH 0 and PDSCH 1, channel group # 1 Including PDSCH 2, PDSCH 3 and PDSCH 4.
  • the network device continues to send channel group #2 to the terminal device.
  • the channel group #2 includes PDSCH 5, PDSCH 6 and PDSCH 7.
  • the terminal device sends the HARQ information corresponding to channel group #2 on PUCCH resource 2 based on the instructions of the network device .
  • the network device After channel group #2, the network device sends PDSCH 8, PDSCH 9, and PDSCH 10 to the terminal device. It can be found that the group number of the channel group to which PDSCH 8, PDSCH 9, and PDSCH 10 belong is the same as the group number of the first channel group, and they are all #0. In addition, before receiving PDSCH 8, PDSCH 9 and PDSCH 10, the terminal device has already sent HARQ information for channel group #0 on PUCCH resource 0 and/or PUCCH resource 1, or PDSCH 8, PDSCH 9, and PDSCH 10.
  • the terminal device can determine the second uplink resource for transmitting HARQ information corresponding to channel group #0, namely PUCCH Resource 3. Then the terminal device can reset the HARQ information corresponding to the first channel group, that is, clear the HARQ information corresponding to the PDSCH 0 and PDSCH 1.
  • the network device instructs the terminal device to send the HARQ information corresponding to channel group #0 on PUCCH resource 3
  • the terminal device sends the channel on PUCCH resource 3.
  • the terminal device is receiving the second channel, and the value of the second downlink allocation indication DAI information corresponding to the second channel is less than or equal to the first channel corresponding to the first channel in the first channel group.
  • the terminal device resets the HARQ information corresponding to the first channel group.
  • the value of the first DAI information is used to indicate the position of the first channel in the first channel group
  • the value of the second DAI information is used to indicate the position of the second channel in the channel group to which it belongs.
  • the number of data channels in each channel group is less than or equal to the second preset value.
  • the second preset value may be configured by the network device for the terminal device, or agreed upon by a protocol.
  • each channel group can include up to four PDSCHs. It is assumed that the first channel group is PDSCH 0, PDSCH 1, PDSCH 2, and PDSCH 3 in order from the front. Wherein, the value of the DAI information can be 00, 01, 10, 11, which are used to indicate the position of each PDSCH in the 4 PDSCHs.
  • the value of DAI information corresponding to PDSCH 0 is 00, PDSCH 0 is the first PDSCH of these 4 PDSCHs; the value of DAI information corresponding to PDSCH 1 is 01, and PDSCH 1 is the second of these 4 PDSCHs PDSCH; the value of DAI information corresponding to PDSCH 2 is 10, PDSCH 2 is the third PDSCH of these 4 PDSCHs; the value of DAI information corresponding to PDSCH 3 is 11, and PDSCH 3 is the last PDSCH of these 4 PDSCHs .
  • the network device instructs the terminal device to send the HARQ information corresponding to the first channel group, which is channel group #0, on PUCCH resource 0, where channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, and PDSCH 3, and
  • the values of DAI information of PDSCH 0, PDSCH 1, PDSCH 2 and PDSCH 3 are 00, 01, 10, and 11, respectively.
  • the network device instructs the terminal device to send the HARQ information corresponding to channel group #1 on PUCCH resource 1, where channel group #1 includes PDSCH 4, PDSCH 5, PDSCH 6, and PDSCH 7, and PDSCH 4, PDSCH 5, PDSCH 6, and PDSCH 7
  • the DAI information is 00, 01, 10, and 11.
  • the network device After channel group #1, the network device sends PDSCH 8, PDSCH 9, and PDSCH 10 to the terminal device, and the DAI information of PDSCH 8, PDSCH 9, and PDSCH 10 are 00, 01, and 10, respectively. It can be found that the group number of the channel group to which PDSCH 8, PDSCH 9 and PDSCH 10 belong is the same as the group number of the first channel group, which is #0; and the values of DAI information of PDSCH 8, PDSCH 9 and PDSCH 10 are respectively The values of DAI information of PDSCH 0, PDSCH 1, and PDSCH 2 in the first channel group are the same.
  • the group number of the channel group to which PDSCH 8 belongs is #0
  • the value of DAI information of PDSCH 8 is 00
  • the value of DAI information of PDSCH 8 is equal to the value of DAI information of PDSCH 0 in the first channel group.
  • the value is also smaller than the value of the DAI information of PDSCH 1 and PDSCH 2 in the first channel group. Since the PDSCH 8 satisfies the conditions of the group number and DAI information at the same time, the terminal device resets the HARQ information corresponding to the first channel group when the PDSCH 8 is received by the terminal device, that is, clears the HARQ information corresponding to the PDSCH 0 to PDSCH 3.
  • the network device instructs the terminal device to send HARQ information corresponding to channel group #0 on PUCCH resource 3, the terminal device is on PUCCH resource 3.
  • the value of DAI information in each channel group can only appear once at most. Therefore, when the same DAI value appears in a channel group with the same group number, it can be considered that when the DAI value appears later, the HARQ corresponding to the channel group Information reset.
  • the codebook size of the HARQ information corresponding to channel group #0 remains unchanged, which means that the codebook size of the HAQR information for the same PDSCH does not change each time, and when the HARQ information corresponding to channel group #0 After being reset, the codebook size of the HAQR information of the new PDSCH included in the channel group with the group number #0 may be different from the codebook size of the HARQ information corresponding to the channel group #0 before the reset.
  • the codebook size of the HARQ information corresponding to PDSCH 0 to PDSCH 3 in channel group #0 remains unchanged during initial transmission and retransmission.
  • the channel group with the group number #0 includes PDSCH 8 to PDSCH 10, it can be seen that the codebook size of the HARQ information corresponding to PDSCH 8 to PDSCH 10 is smaller than the HARQ corresponding to PDSCH 0 to PDSCH 3 The codebook size of the information. Similarly, the codebook size of the HARQ information corresponding to PDSCH 8 to PDSCH 10 remains unchanged during initial transmission and retransmission.
  • the following describes how the terminal device resets the HARQ information based on the first indication information for instructing the resetting of the HARQ information with reference to FIG. 8 and FIG. 9.
  • the HARQ corresponding to the first channel group is reset.
  • This method can be applied to the HARQ feedback mode with a constant codebook size, and can also be applied to the HARQ feedback mode with a variable codebook size.
  • the first indication information may be, for example, flipping indication information, that is, flipping bits.
  • the flip bit can be sent together with the downlink grant (DL grant).
  • DL grant downlink grant
  • the value of the flipped bit is flipped, for example, from 0 to 1 or from 1 to 0, it indicates the end of HARQ information of the downlink channel in the channel group corresponding to the flipped bit and located before the flipping moment.
  • the first indication information may also be carried in other DCIs, for example, carried in an uplink grant (UL grant) or DCI not used for uplink and downlink scheduling, which is not limited here.
  • UL grant uplink grant
  • DCI not used for uplink and downlink scheduling which is not limited here.
  • the reversal indication information takes effect only under certain conditions, so as to prevent the terminal device from resetting the HARQ information corresponding to a certain channel group before transmitting, thereby ensuring the reliability of HARQ feedback.
  • Fig. 8 shows the HARQ feedback mode with the same HARQ codebook size.
  • the network device instructs the terminal device to send the HARQ information corresponding to the first channel group, namely channel group #0, on PUCCH resource 0, where channel group #0 includes PDSCH 0 and PDSCH 1, and the rollover indication information corresponding to PDSCH 0 and PDSCH 1 is 0 .
  • the network device can indicate The terminal device retransmits the HARQ information corresponding to channel group #0 on PUCCH resource 1.
  • the network equipment instructs the terminal equipment to send HARQ information corresponding to channel group #0 and HARQ information corresponding to channel group #1 on PUCCH resource 1, where channel group #0 includes PDSCH 0 and PDSCH 1, channel group # 1 includes PDSCH 2, PDSCH 3, and PDSCH 4, and the flip indication information corresponding to each channel in channel group #0 and channel group #1 is still 0.
  • the network device continues to send channel group #2 to the terminal device.
  • the channel group #2 includes PDSCH 5, PDSCH 6, and PDSCH 7, and the rollover indication information corresponding to PDSCH 5, PDSCH 6, and PDSCH 7 is 0.
  • the terminal device is based on the network device. Indicates that the HARQ information corresponding to channel group #2 is sent on PUCCH resource 2.
  • the network device After channel group #2, the network device sends PDSCH 8, PDSCH 9, and PDSCH 10 to the terminal device. It can be found that the rollover indication information corresponding to PDSCH 8, PDSCH 9 and PDSCH 10 becomes 1, so the terminal device can reset the HARQ information corresponding to the first channel group, that is, clear the HARQ information corresponding to PDSCH 0 and PDSCH 1.
  • the network device instructs the terminal device to send the HARQ information corresponding to channel group #0 on PUCCH resource 3
  • the terminal device sends the channel group on PUCCH resource 3.
  • Another example is the HARQ feedback method with a variable HARQ codebook size shown in FIG. 9.
  • the network device instructs the terminal device to send the HARQ information corresponding to the first channel group, namely channel group #0, on PUCCH resource 0.
  • channel group #0 includes PDSCH 0 and PDSCH 1, and the rollover indication information corresponding to PDSCH 0 and PDSCH 1 is 0.
  • the terminal device fails to send the HARQ information corresponding to channel group #0 on PUCCH resource 0 due to LBT failure or other reasons, or the network device fails to detect the HARQ information corresponding to the channel group #0 on PUCCH resource 0, then the network device can indicate The terminal device retransmits the HARQ information corresponding to channel group #0 on PUCCH resource 1.
  • channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 2, PDSCH 3, PDSCH 4, and PDSCH 5.
  • the flip indication information corresponding to each channel in the channel group #0 is still 0.
  • the network device continues to send PDSCH 6, PDSCH 7, and PDSCH 8 to the terminal device. Since the rollover indication information corresponding to PDSCH 6, PDSCH 7 and PDSCH 8 becomes 1, the terminal device can reset the HARQ information corresponding to the first channel group, that is, clear the HARQ information corresponding to PDSCH 0 to PDSCH 5.
  • the network device instructs the terminal device to send the HARQ information corresponding to channel group #0 on PUCCH resource 2
  • the terminal device sends the channel group on PUCCH resource 2.
  • the terminal device sends HARQ information corresponding to the channel group #0 at least once before the terminal device receives the first indication information reversal.
  • the time interval between the terminal device sending the HARQ information corresponding to the channel group #0 and the terminal device receiving the flipped first indication information is greater than or equal to the first preset value.
  • the terminal device if the terminal device does not send the HARQ information corresponding to the channel group #0 before the terminal device receives the first indication information rollover, or the terminal device sends channel group #
  • the time interval between the HARQ information corresponding to 0 and the terminal device receiving the flipped first indication information is less than the first preset value, and the terminal device resets the HARQ information corresponding to channel group #0 according to the first indication information, or in other words, the terminal The device discards the corresponding HARQ information in channel group #0 before the first indication information is overturned.
  • the terminal device resets the HARQ information corresponding to the first channel group when it receives the second channel that satisfies the condition or receives the first indication information for indicating HARQ information reset, so that the terminal device can flexibly
  • the HARQ information is processed, the bit overhead in the HARQ information transmission process is reduced, and the effective transmission of HARQ information on the unlicensed spectrum is realized.
  • FIG. 10 shows a HARQ information feedback method 1000 according to an embodiment of this application.
  • This method may be executed by a terminal device and a network device.
  • the network device may be, for example, the network device 110 in FIG. 1 described above, and the terminal device may be, for example, the terminal device 120 in FIG. 1 described above.
  • This method can be applied to unlicensed spectrum or licensed spectrum. As shown in Figure 10, the method includes some or all of the following steps, of which:
  • the network device sends second indication information to the terminal device, where the second indication information indicates a parameter for feeding back HARQ information.
  • the parameter may include, for example, a group number, a channel group reset command, etc.
  • the channel group reset command is used by the terminal device to determine whether to reset the HARQ information corresponding to the channel group of the group number.
  • the terminal device receives the second indication information sent by the network device.
  • the terminal device determines a parameter for feeding back HARQ information according to the second indication information.
  • the method further includes: the network device sends third indication information to the terminal device; correspondingly, the terminal device receives the third indication information, where the third indication information is used to indicate a feedback mode of HARQ information.
  • the third indication information may be, for example, high-level signaling, such as radio resource control (Radio Resoure Control, RRC) signaling.
  • RRC Radio Resoure Control
  • the feedback manner of the HARQ information includes a first feedback manner and a second feedback manner.
  • the HARQ information corresponding to the channel group with the same group number transmitted by the terminal device each time has the same codebook size
  • the terminal device transmits the HARQ information corresponding to the channel group with the same group number each time
  • the size of the codebook is variable, for example, based on the flip indication information received by the terminal device.
  • the first feedback mode is the aforementioned HARQ feedback mode with the same codebook size, such as mode 1 shown in FIG. 2.
  • the terminal device can reset the HARQ information corresponding to the channel group according to the method described in the foregoing FIG. 3, that is, The terminal device resets the HARQ information corresponding to the first channel group when receiving the second channel that meets the preset condition, and/or when receiving the first indication information for instructing to reset the HARQ information.
  • FIGS. 3 to 9 for details on how to reset the HARQ information corresponding to the first channel group when the terminal device adopts the first feedback mode. For details on how to reset the HARQ information corresponding to the first channel group when the terminal device adopts the first feedback mode, reference may be made to the foregoing description of FIGS. 3 to 9 for details. For brevity, details are not repeated here.
  • This second feedback mode is the aforementioned HARQ feedback mode with a variable codebook size, for example, mode 2 shown in FIG. 2.
  • the terminal device may determine whether to reset the HARQ information corresponding to the first channel group according to the flip indication information, for example, the terminal
  • the terminal device resets the HARQ information corresponding to the first channel group, where the group number of the channel group to which the second channel belongs and the first channel group The group numbers of a channel group are the same.
  • the terminal device can send the HARQ information corresponding to channel group # on PUCCH resource 0 based on the instruction of the network device, where channel group #0 includes PDSCH 0 and PDSCH 1; and send channel group #0 and channel group # on PUCCH resource 1 1 corresponds to HARQ information, where channel group #0 includes PDSCH 0 and PDSCH 1, and the corresponding HARQ codebook size remains unchanged, channel group #1 includes PDSCH 2 to PDSCH 4; and channel group # is sent on PUCCH resource 2 2.
  • the terminal device can send the HARQ information corresponding to channel group # on PUCCH resource 0 based on the instructions of the network device, where channel group #0 includes PDSCH 0 and PDSCH 1; and send the HARQ information corresponding to channel group #1 on PUCCH resource 1 , Where channel group #1 includes PDSCH 2 to PDSCH 4; and the HARQ information corresponding to channel group #0 is sent on PUCCH resource 2.
  • channel group #0 includes PDSCH 0, PDSCH 1, PDSCH 5, PDSCH 6, and PDSCH 7 , The size of the corresponding HARQ codebook has changed; and the HARQ information corresponding to channel group #1 is sent on PUCCH resource 3. Since the inversion indication information corresponding to PDSCH 8 to PDSCH 10 changes from 0 to 1, the terminal device re Set the HARQ information corresponding to channel group #1. At this time, channel group #1 includes PDSCH 8 to PDSCH 10, and the terminal device transmits the HARQ information corresponding to PDSCH 8 to PDSCH 10 on PUCCH resource 3.
  • the downlink grant sent by the network device to the terminal device includes the N-bit second indication information, and the second indication information is used by the terminal device to determine the HARQ feedback related information.
  • the N bits are used to indicate the downlink grant or the group number to which the PDSCH scheduled by the downlink grant belongs.
  • the HARQ feedback indication field is the information in which the N bits in the second indication information are configured as the group number.
  • the N1 bit of the N bits is used to indicate the group number of the downlink grant or the PDSCH scheduled by the downlink grant; the N2 bit (for example, the other 1 bit) of the N bits is used to indicate Whether the HARQ information corresponding to the channel group of the group number is reset.
  • the first feedback mode has a shorter time delay, but requires more channel groups.
  • the second feedback method requires fewer channel groups, but the feedback delay is longer, and the HARQ codebook for feedback may be larger.
  • the network device can select an appropriate HARQ feedback mode based on different scenarios and instruct the terminal device.
  • the overhead of the dynamic signaling used to determine the relevant information of the HARQ feedback in the DCI in the downlink grant is the same, and no additional dynamics are required. Signaling overhead or increasing the complexity of blind detection of the terminal equipment can obtain the flexibility of HARQ feedback configuration.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not correspond to the implementation process of the embodiments of the present application. Constitute any limitation.
  • FIG. 12 is a schematic block diagram of a terminal device 1200 according to an embodiment of the present application. As shown in FIG. 12, the terminal device 1200 includes a processing unit 1210 and a storage unit 1220. among them:
  • the processing unit 1210 is configured to: determine HARQ information corresponding to the first channel group;
  • the storage unit 1220 is configured to: buffer HARQ information corresponding to the first channel group;
  • the processing unit 1210 is further configured to: when the terminal device receives a second channel that meets a preset condition, and/or when the terminal device receives first indication information for instructing to reset HARQ information, control all The storage unit resets the HARQ information corresponding to the first channel group.
  • the preset condition includes: the HARQ process number of the second channel is the same as the HARQ process number of the first channel in the first channel group, and/or the HARQ process number of the channel group to which the second channel belongs The group number is the same as the group number of the first channel group.
  • the terminal device determines whether it needs to start the DRX duration timer in the DRX cycle after the wake-up signal according to whether the wake-up signal sent by the network device is detected, so that there is no need to wake-up to monitor the PDCCH without the need to wake-up, thus further reducing The power consumption of the terminal equipment in the DRX process.
  • the terminal device transmits the first channel at least once HARQ information corresponding to the group.
  • the terminal device has sent the HARQ information corresponding to the first channel group multiple times, and the HARQ information corresponding to the first channel group sent multiple times has the same or different codebook sizes.
  • the time interval between the terminal device sending the HARQ information corresponding to the first channel group and the terminal device receiving the second channel is greater than or equal to a first preset value, and/or, The time interval between the terminal device sending the HARQ information corresponding to the first channel group and the terminal device receiving the first indication information is greater than or equal to the first preset value.
  • the first preset value is determined by the network device according to its processing time.
  • the first preset value is configured by the network device for the terminal device, or agreed by a protocol.
  • the preset condition includes that the HARQ process number of the second channel is the same as the HARQ process number of the first channel in the first channel group, wherein the processing unit 1210 is specifically configured to: When the terminal device receives the second channel, and the second channel includes newly transmitted data, reset the HARQ information corresponding to the first channel group.
  • the preset condition includes that the group number of the channel group to which the second channel belongs is the same as the group number of the first channel group, wherein the processing unit 1210 is specifically configured to: When the second channel is received, and the value of the second DAI information corresponding to the second channel is less than or equal to the value of the first DAI information corresponding to the first channel, the terminal device resets the first DAI information.
  • HARQ information corresponding to the channel group wherein the value of the first DAI information is used to indicate the position of the first channel in the first channel group, and the value of the second DAI information is used to indicate the first channel group. The position of the second channel in the channel group to which it belongs.
  • the preset condition includes that the group number of the channel group to which the second channel belongs is the same as the group number of the first channel group, and the second channel is located in the first uplink resource in the time domain. After that, the first uplink resource is used to send HARQ information corresponding to the first channel group.
  • the first uplink resource is an uplink resource used when the terminal device transmits the HARQ information corresponding to the first channel group for the first time, and/or the first uplink resource is the terminal device Determined according to the HARQ timing indication information corresponding to the channels in the first channel group.
  • the second uplink resource is located after the first uplink resource, the second uplink resource is used to send HARQ information corresponding to the channel group to which the second channel belongs, and the second uplink resource is the terminal The device determines it according to the HARQ timing indication information corresponding to the second channel.
  • the number of data channels in each channel group is less than or equal to a second preset value.
  • the second preset value is configured by the network device for the terminal device, or is agreed upon by a protocol
  • the terminal device receives the second channel that meets a preset condition includes: the terminal device receives a downlink channel that meets the preset condition for scheduling the second channel, or The terminal device receives data carried in the second channel that meets the preset condition.
  • terminal device 1200 can perform corresponding operations performed by the terminal device in the method 300 of the embodiment of the present application, and for the sake of brevity, details are not described herein again.
  • FIG. 13 is a schematic block diagram of a terminal device 1300 according to an embodiment of the present application. As shown in FIG. 13, the terminal device 1300 includes a transceiver unit 1310 and a processing unit 1320. among them:
  • the transceiver unit 1310 is configured to receive second indication information sent by the network device, where the second indication information indicates a parameter used to feed back HARQ information.
  • the processing unit 1320 is configured to determine a parameter for feeding back HARQ information according to the second indication information.
  • the method further includes: the terminal device receives third indication information sent by the network device, where the third indication information is used to indicate a feedback manner of HARQ information.
  • the third indication information may be, for example, high-layer signaling, such as RRC signaling.
  • the feedback manner of the HARQ information includes a first feedback manner and a second feedback manner.
  • the HARQ information corresponding to the channel group with the same group number transmitted by the terminal device each time has the same codebook size
  • the terminal device transmits the HARQ information corresponding to the channel group with the same group number each time
  • the size of the codebook is variable, for example, based on the flip indication information received by the terminal device.
  • the processing unit 1320 is specifically configured to: when receiving a second channel that meets a preset condition, and/or When receiving the first indication information for instructing to reset the HARQ information, reset the HARQ information corresponding to the first channel group.
  • the processing unit 1320 is specifically configured to: when the second channel is received and the value of the flip indication information corresponding to the second channel is received When a change occurs, the terminal device resets the HARQ information corresponding to the first channel group, where the group number of the channel group to which the second channel belongs is the same as the group number of the first channel group.
  • terminal device 1300 can perform the corresponding operations performed by the terminal device in the method 1000 of the embodiment of the present application, and for the sake of brevity, details are not described herein again.
  • FIG. 14 is a schematic block diagram of a network device 1400 according to an embodiment of the present application.
  • the network device 1400 includes a processing unit 1410 and a sending unit 1420. among them:
  • the processing unit 141 is configured to generate second indication information, where the second indication information indicates a parameter for feeding back HARQ information.
  • the sending unit 1420 is configured to send the second indication information to the terminal device.
  • the method further includes: the network device sends third indication information to the terminal device, where the third indication information is used to indicate a feedback manner of HARQ information.
  • the third indication information may be, for example, high-layer signaling, such as RRC signaling.
  • the feedback manner of the HARQ information includes a first feedback manner and a second feedback manner.
  • the HARQ information corresponding to the channel group with the same group number transmitted by the terminal device each time has the same codebook size
  • the terminal device transmits the HARQ information corresponding to the channel group with the same group number each time
  • the size of the codebook is variable, for example, based on the flip indication information received by the terminal device.
  • the network device 1400 can perform the corresponding operations performed by the network device in the method 1000 of the embodiment of the present application, which is not repeated here for brevity.
  • FIG. 15 is a schematic structural diagram of a communication device 1500 according to an embodiment of the present application.
  • the communication device 1500 shown in FIG. 15 includes a processor 1510, and the processor 1510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 1500 may further include a memory 1520.
  • the processor 1510 may call and run a computer program from the memory 1520 to implement the method in the embodiment of the present application.
  • the memory 1520 may be a separate device independent of the processor 1510, or may be integrated in the processor 1510.
  • the communication device 1500 may further include a transceiver 1530, and the processor 1510 may control the transceiver 1530 to communicate with other devices, specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 1530 may include a transmitter and a receiver.
  • the transceiver 1530 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1500 may specifically be a terminal device of an embodiment of the application, and the communication device 1500 may implement the corresponding process implemented by the terminal device in each method of the embodiment of the application. For brevity, details are not repeated here. .
  • the communication device 1500 may specifically be a network device of an embodiment of the application, and the communication device 1500 may implement the corresponding process implemented by the network device in each method of the embodiment of the application. For brevity, details are not repeated here. .
  • FIG. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 1600 shown in FIG. 16 includes a processor 1610, and the processor 1610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 1600 may further include a memory 1620.
  • the processor 1610 may call and run a computer program from the memory 1620 to implement the method in the embodiment of the present application.
  • the memory 1620 may be a separate device independent of the processor 1610, or may be integrated in the processor 1610.
  • the communication device 1600 may further include an input interface 1630.
  • the processor 1610 can control the input interface 1630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the communication device 1600 may further include an output interface 1640.
  • the processor 1610 can control the output interface 1640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the communication device 1600 can be applied to the network equipment in the embodiments of the present application, and the communication device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application. For brevity, details are not repeated here. .
  • the communication device 1600 may be applied to the terminal device in the embodiment of the present application, and the communication device may implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 1600 may be a chip.
  • the chip may also be called a system-level chip, a system-on-chip, a system-on-a-chip, or a system-on-chip.
  • 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 aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made 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 embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM, SLDRAM synchronous connection dynamic random access memory
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), and synchronous Dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamics Random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc.
  • static random access memory static random access memory
  • SRAM static random access memory
  • dynamic RAM dynamic RAM
  • DRAM synchronous Dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • enhanced synchronous dynamic random access memory enhanced synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • synchronous connection dynamics Random access memory strip link DRAM, SLDRAM
  • Direct Rambus RAM, DR RAM direct memory bus random access memory
  • FIG. 17 is a schematic block diagram of a communication system 1700 according to an embodiment of the present application. As shown in FIG. 17, the communication system 1700 includes a network device 1710 and a terminal device 1720.
  • the network device 1710 is used to send second indication information to the terminal device, and the second indication information is used to indicate a feedback mode of HARQ information.
  • the terminal device 1720 is configured to: receive the second indication information sent by the network device; and determine the HARQ information feedback mode according to the second indication information.
  • the feedback manner of the HARQ information includes a first feedback manner and a second feedback manner.
  • the HARQ information corresponding to the channel group with the same group number transmitted by the terminal device each time has the same codebook size
  • the terminal device transmits the HARQ information corresponding to the channel group with the same group number each time
  • the size of the codebook is variable, for example, based on the flip indication information received by the terminal device.
  • the network device 1710 can be used to implement the corresponding functions implemented by the network device in the method of the embodiment of the present application, and the composition of the network device 1710 can be as shown in the network device 1400 in FIG. 14. For the sake of brevity, it will not be omitted here. Repeat.
  • the terminal device 1720 can be used to implement the corresponding functions implemented by the terminal device in the method of the embodiment of the application, and the composition of the terminal device 1720 can be as shown in the terminal device 1300 in FIG. Repeat.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. Repeat.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here the computer program can be applied to the terminal device in the embodiment of the present application.
  • the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • system and “network” in the embodiments of the present invention are often used interchangeably herein.
  • the term “and/or” in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations.
  • the character "/" in this text generally indicates that the associated objects before and after are in an "or” relationship.
  • B corresponding (corresponding) to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or may be Integrate 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.
  • 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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Abstract

提供了一种HARQ信息反馈的方法和设备，能够对各个信道组对应的HARQ信息进行有效处理，实现非授权频段上HARQ信息的传输。该方法包括：终端设备确定第一信道组对应的HARQ信息；所述终端设备在接收到满足预设条件的第二信道时，和/或在接收到用于指示重置HARQ信息的第一指示信息时，重置所述第一信道组对应的HARQ信息。其中，所述预设条件包括：所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，和/或，所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同。

Description

HARQ信息反馈的方法和设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及HARQ信息反馈的方法和设备。
背景技术
5G系统或称新无线(New Radio，NR)系统中支持非授权频谱(unlicensed spectrum)上的数据传输。通信设备进行非授权频谱上的NR通信(NR-based access to unlicensed spectrum，NR-U)时，需要基于先听后说(Listen Before Talk，LBT)的原则。即，在非授权频谱上发送信号之前，需要先进行信道侦听，当侦听结果为信道空闲时才能发送信号；而当信道侦听的结果为信道忙时则不能发送信号。
终端设备在非授权载波上接收到网络设备发送的下行信道后，需要在非授权载波上向网络设备发送相应的混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)信息。其中，网络设备可以为其调度的下行信道进行分组，终端设备根据不同的信道分组进行相应的HARQ信息的反馈。由于非授权频谱上的信道使用权的不确定性，某些信道组对应的HARQ信息可能需要多次传输才能够被网络设备接收到。在这个过程中，终端设备如何对各个信道组对应的HARQ信息进行处理，成为亟待解决的问题。
发明内容
本申请提供一种HARQ信息反馈的方法和设备，能够对各个信道组对应的HARQ信息进行有效处理，实现非授权频段上HARQ信息的传输。
第一方面，提供了一种HARQ信息反馈的方法，包括：终端设备确定第一信道组对应的HARQ信息；所述终端设备在接收到满足预设条件的第二信道时，和/或在接收到用于指示重置HARQ信息的第一指示信息时，重置所述第一信道组对应的HARQ信息。
其中，所述预设条件包括：所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，和/或，所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同。
第二方面，提供了一种HARQ信息反馈的方法，包括：终端设备接收网络设备发送的第二指示信息，所述第二指示信息指示用于反馈HARQ信息的参数。
可选地，该方法还包括：终端设备接收第三指示信息，该第三指示信息用于指示HARQ信息的反馈方式，所述HARQ信息的反馈方式包括第一反馈方式和第二反馈方式。
第三方面，提供了一种HARQ信息反馈的方法，包括：网络设备向终端设备发送第二指示信息，所述第二指示信息指示用于反馈HARQ信息的参数。该参数例如包括HARQ信息的反馈方式，所述HARQ信息的反馈方式包括第一反馈方式和第二反馈方式。
在第二方面和第三方面的任意一种实现方式中，所述第一反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小相同，所述第二反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小可变，例如基于终端设备接收到的翻转指示信息而变化。
第四方面，提供了一种终端设备，该终端设备可以执行上述第一方面或第一方面的任意可选的实现方式中的方法。具体地，该终端设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的功能模块。
第五方面，提供了一种终端设备，该终端设备可以执行上述第二方面或第二方面的任意可选的实现方式中的方法。具体地，该终端设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的功能模块。
第六方面，该网络设备可以执行上述第三方面或第三方面的任意可选的实现方式中的方法。具体地，该网络设备可以包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的功能模块。
第七方面，提供了一种终端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，以执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法。
第八方面，提供了一种网络设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第三方面或第三方面的任意可能的实现方式中的方法。
第九方面，提供了一种通信装置，包括处理器。该处理器用于从存储器中调用并运行计算机程序，使得安装有该通信装置的设备执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十方面，提供了一种通信装置，包括处理器。该处理器用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行上述第三方面或第三方面的任意可能的实现方式中的方法。
第十一方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十二方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第三方面或第三方面的任意可能的实现方式中的方法。
第十三方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十四方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第三方面或第三方面的任意可能的实现方式中的方法。
第十五方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十六方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第三方面或第三方面的任意可能的实现方式中的方法。
第十七方面，提供了一种通信系统，包括终端设备和网络设备。
所述网络设备用于：向终端设备发送第二指示信息，所述第二指示信息指示用于反馈HARQ信息的参数。
所述终端设备用于：接收网络设备发送的第二指示信息；根据所述第二指示信息确定用于反馈HARQ信息的参数。
基于上述技术方案，在反馈某个信道组对应的HARQ信息的过程中，终端设备在接收到满足预设条件的第二条件或者接收到用于指示重置HARQ信息的第一指示信息时，重置该信道组对应的HARQ信息，实现了非授权频段上HARQ信息的有效传输。
附图说明
图1是本申请实施例应用的一种可能的无线通信系统的示意图。
图2是反馈HARQ信息的两种方式。
图3是本申请实施例的HARQ信息反馈的方法的示意性流程图。
图4是本申请实施例的基于HARQ进程号重置HAQR信息的示意图。
图5是本申请实施例的基于信道组的组编号重置HAQR信息的示意图。
图6是本申请实施例的基于信道组的组编号重置HAQR信息的示意图。
图7是本申请实施例的基于信道组的组编号重置HAQR信息的示意图。
图8是本申请实施例的基于翻转指示信息重置HAQR信息的示意图。
图9是本申请实施例的基于翻转指示信息重置HAQR信息的示意图。
图10是本申请另一实施例的HARQ信息反馈的方法的示意性流程图。
图11是本申请实施例两种不同的HARQ反馈方式的示意图。
图12是本申请实施例的终端设备的示意性框图。
图13是本申请实施例的终端设备的示意性框图。
图14是本申请实施例的网络设备的示意性框图。
图15是本申请实施例的通信设备的示意性结构图。
图16是本申请实施例的通信装置的示意性结构图。
图17是本申请实施例的通信系统的示意性框图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile Communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR) 系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、未来的5G系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如设备到设备(Device to Device，D2D)通信、机器到机器(Machine to Machine，M2M)通信、机器类型通信(Machine Type Communication，MTC)、以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统也可以应用于载波聚合(Carrier Aggregation，CA)场景、双连接(Dual Connectivity，DC)场景、独立(Standalone，SA)布网场景等。
图1是本申请实施例应用的一种可能的无线通信系统的示意图。该无线通信系统100可以包括网络设备110。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。
可选地，该网络设备100可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该无线通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。
终端设备120可以是移动的或固定的。
可选地，终端设备120可以指用户设备、接入终端、用户单元、用户站、移动站、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。其中，可选地，终端设备120之间也可以进行终端直连(Device to Device，D2D)通信。
网络设备110可以为小区提供服务，终端设备120通过该小区使用的传输资源，例如频域资源，或者说频谱资源，与网络设备110进行通信。该小区可以是网络设备110对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
图1示例性地示出了一个网络设备和两个终端设备，但本申请并不限于此。该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备。此外，该无线通信系统100还可以包括网络控制器、移动性管理实体等其他网络实体。
非授权频谱(或称非授权频段)是国家和地区划分的可用于无线电设备通信的频谱，该频谱通常被认为是共享频谱，即不同通信系统中的通信设备只要满足国家或地区在该频谱上设置的法规要求，就可以使用该频谱，不需要向政府申请专有的频谱授权。
为了让使用非授权频谱进行无线通信的各个通信系统在该频谱上能够友好共存，一些国家或地区规定了使用非授权频谱必须满足的法规要求。例如，通信设备遵循“先听后说(LBT)”原则，即通信设备在非授权频谱的信道上进行信号发送前，需要先进行信道侦听，只有当信道侦听结果为信道空闲时，该通信设备才能进行信号发送；如果通信设备在非授权频谱的信道上的信道侦听结果为信道忙，该通信设备不能进行信号发送。
其中，非授权频谱上的信号传输涉及以下基本概念：
最大信道占用时间(Maximum Channel Occupancy Time，MCOT)：指LBT成功后允许使用非授权频谱的信道进行信号传输的最大时间长度，或者说该MCOT为信号传输占用的时间。不同信道接入优先级下具有不同的MCOT。目前MCOT的最大取值为10ms。
信道占用时间(Channel Occupancy Time，COT)：指LBT成功后使用非授权频谱的信道进行信号传输的时间长度，该时间长度内信号占用的信道可以是不连续的。其中，一次COT最长不能超过20ms，并且，该COT内的信号传输占用的时间长度不超过MCOT。
基站的信道占用时间(gNB-initiated COT)：也称为基站发起的COT，指基站进行LBT成功后获 得的一次信道占用时间。基站的信道占用时间内除了可以用于下行传输，也可以在满足一定条件下用于UE进行上行传输。
UE的信道占用时间(UE-initiated COT)：也称为UE发起的COT，指UE进行LBT成功后获得的一次信道占用时间。
下行传输机会(DL burst)：基站进行的一组下行传输例如其中包括一个或多个下行传输，该组下行传输为连续传输，即多个下行传输之间没有空隙，或者该组下行传输中有空隙但是该空隙小于或等于预设值例如16μs。如果基站进行的两个下行传输之间的空隙大于16μs，那么认为该两个下行传输属于两次下行传输机会。
上行传输机会(UL burst)：一个UE进行的一组上行传输例如其中包括一个或多个上行传输，该组上行传输为连续传输，即多个上行传输之间没有空隙，或者该组上行传输中有空隙但该空隙小于或等于预设值例如16μs。如果该UE进行的两个上行传输之间的空隙大于16μs，那么认为该两个上行传输属于两次上行传输机会。
在非授权频段上的NR系统中，可以支持独立布网，即不依赖于授权频段上的载波提供辅助服务。在这种场景下，终端设备在非授权载波上接收到PDSCH后，需要在非授权载波上发送该PDSCH对应的HARQ-ACK反馈。
NR系统中支持动态地确定HARQ反馈时序。网络设备通过下行控制信息(Downlink Control Information，DCI)调度终端设备进行物理下行共享信道(Physical Downlink Shared Channel，PDSCH)的接收。其中，该DCI中包括用于传输该PDSCH对应的HARQ信息的物理上行控制信道(Physical Uplink Control Channel，PUCCH)资源的指示信息。该指示信息可以包括：
PUCCH资源指示(PUCCH resource indicator)：用于确定PUCCH资源；
HARQ时序指示(PDSCH-to-HARQ_feedback timing indicator)：用于动态地确定PUCCH资源的时域位置。其中，该HARQ时序指示信息用于确定预配置的HARQ时序集合中的取值，例如该HARQ时序指示信息为000时可以指示HARQ时序集合中的k0，该HARQ时序指示信息为001时可以指示HARQ时序集合中的k1。
其中，在非授权频段上，HARQ时序指示信息除了可以用于确定传输该PDSCH对应的HARQ的PUCCH资源，还可能用于指示该PDSCH对应的HARQ信息先不进行反馈的状态。例如，预配置的HARQ时序集合中还包括表示无效资源指示的取值kL，该HARQ时序指示信息为111时可以指示HARQ时序集合中的kL。这时，如果终端设备接收到的该HARQ时序指示信息为111，那么表示相应的PUCCH资源暂时无法确定。
此外，如果是动态码本的反馈，该DCI中还可以包括下行分配指示(Downlink Assignment Index，DAI)，该DAI包括DAI计数信息和/或DAI总数信息，其中，DAI计数信息用于指示当前被调度的PDSCH是当前HARQ反馈窗中的第几个PDSCH，DAI总数信息用于指示当前HARQ反馈窗中一共调度了多少个PDSCH。
终端设备根据上述信息可以确定用于反馈HARQ信息的PUCCH资源和该HARQ信息在该PUCCH资源上传输的码本中的位置。
应理解，本申请实施例中的HARQ信息也可以称为HARQ-ACK信息，即对PDSCH译码后基于译码结果得到的ACK或NACK信息，或者终端设备在反馈时的占位信息。
为了灵活地反馈非授权频段上的PDSCH对应的HARQ信息，网络设备可以对其调度的PDSCH进行分组，并通过指示信令向终端设备指示PDSCH的分组信息，以使终端设备在接收到PDSCH后可以根据不同的信道分组进行对应的HARQ信息的反馈。如果终端设备的某组PDSCH对应的HARQ信息在一次传输时由于LBT失败未能进行传输，或者网络设备在某个PUCCH资源上未能检测到期待终端设备传输的HARQ信息，则网络设备可以通过DCI触发终端设备进行该HARQ信息的重传。
其中，终端设备在进行某组PDSCH对应的HARQ信息的重传时，可以保持和初传同样的码本大小，也可以在重传时增加新的HARQ信息。下面结合图2进行具体说明。
本申请实施例中，终端设备可以采用例如图2所示的两种HARQ信息的反馈方式向网络设备发送HARQ信息。
应理解，本申请实施例中所述的HARQ信息包括HARQ-ACK信息或者HARQ-NACK信息。
如图2所示，网络设备对其调度的下行信道进行了分组，其中每个信道组(或称为数据组或称为HARQ反馈组)具有一个组编号，例如组编号#0(简称为组#0)、组编号#1(简称为组#1)、组编号#2(简称为组#2)等。终端设备根据网络设备发送的指示信令，确定用于发送每个信道组对应的HARQ信息的PUCCH资源。
在方式1中，终端设备基于网络设备的指示，在PUCCH资源0上向网络设备发送信道组#0对应 的HARQ信息，其中，信道组#0包括PDSCH 0、PDSCH 1、PDSCH 2、PDSCH 3和PDSCH 4。终端设备基于网络设备的指示，在PUCCH资源1上向网络设备发送信道组#0和信道组#1对应的HARQ信息，其中，信道组#0包括PDSCH 0、PDSCH 1、PDSCH 2、PDSCH 3和PDSCH 4，信道组#1包括PDSCH 5、PDSCH 6、PDSCH 7和PDSCH 8。
可以看出，在PUCCH资源0(简写为PUCCH 0)和PUCCH资源1(简写为PUCCH 1)上进行信道组#0对应的HARQ信息的初传和重传时，HARQ码本的大小不变。也就是说，如果信道组#0包括的PDSCH对应的HARQ信息已经被指示在某个上行PUCCH资源上传输，则信道组#0内不再增加新的PDSCH，信道组#0对应的HARQ信息在PUCCH资源0和PUCCH资源1上传输时，信道组#0都是包括PDSCH 0、PDSCH 1、PDSCH 2、PDSCH 3和PDSCH 4。
在方式2中，终端设备基于网络设备的指示，在PUCCH资源0上向网络设备发送信道组#0对应的HARQ信息，其中，信道组#0包括PDSCH 0、PDSCH 1、PDSCH 2、PDSCH 3、PDSCH 4和PDSCH 5。终端设备基于网络设备的指示，在PUCCH资源1上向网络设备发送信道组#0对应的HARQ信息，其中，信道组#0包括PDSCH 0、PDSCH 1、PDSCH 2、PDSCH 3、PDSCH 4、PDSCH 5、PDSCH 6、PDSCH 7和PDSCH 8。
可以看出，在PUCCH资源0和PUCCH资源1上进行信道组#0对应的HARQ信息的重传和初传时，HARQ码本的大小发生了变化。PUCCH资源0上传输信道组#0中的PDSCH 0至PDSCH 5，而PUCCH资源#1上传输信道组#1中的PDSCH 0至PDSCH 8，两次反馈的HARQ码本的大小发生了变化。
以下，将该基于方式1的HARQ反馈称为码本大小不变的HARQ反馈方式，将该基于方式2的HARQ反馈称为码本大小可变的HARQ反馈方式。应理解，在方式2中，一些情况下，两次反馈的HARQ码本的大小也可以不变。
终端设备在进行HARQ信息的一次传输后，由于并不确定网络设备是否接收到该HARQ信息，因此终端设备将该HARQ信息进行缓存，直到终端设备认为网络设备已经成功接收到该HARQ信息后，才可以将缓存(buffer)中的HARQ信息清除。以下，也将清除HARQ信息称为重置HARQ信息。
本申请实施例提供了一种HARQ信息反馈的方法，终端设备能够在合适的时间对某个信道组对应的HARQ信息进行重置，从而实现非授权频谱上HARQ信息的传输。
图3所示为本申请实施例的HARQ信息反馈的方法300。该方法可以由终端设备执行，该终端设备例如可以为前述图1中的终端设备120。该方法可以应用于非授权频谱或者授权频谱。如图3所示，该方法包括以下步骤中的部分或全部。其中：
在310中，终端设备确定第一信道组对应的HARQ信息。
在320中，终端设备在接收到满足预设条件的第二信道时，和/或在接收到用于指示重置HARQ信息的第一指示信息时，重置该第一信道组对应的HARQ信息。
其中，该预设条件包括：该第二信道的HARQ进程号与该第一信道组中的第一信道的HARQ进程号相同，和/或，该第二信道所属的信道组的组编号与该第一信道组的组编号相同。
该实施例中，终端设备基于网络设备对下行信道的分组，进行相应的信道组的HARQ信息的反馈。终端设备确定第一信道组对应的HARQ信息后，缓存该第一信道组对应的HARQ信息，并在接收到满足预设条件的第二信道时清除该第一信道组对应的HARQ信息，即终端设备接收到满足预设条件的第二信道时重置该第一信道组对应的HARQ信息；或者在接收到用于指示重置HARQ信息的第一指示信息时清除该第一信道组对应的HARQ信息，即终端设备接收到该第一指示信息时重置该第一信道组对应的HARQ信息。从而能够能够在合适的时间对某个信道组对应的HARQ信息进行重置，节省了比特开销，实现了非授权频谱上HARQ信息的有效传输。
该方法可以适用于前述的两种HARQ反馈方式，即信道组对应的HARQ信息在每次传输时的码本大小不变的HARQ反馈方式，以及信道组对应的HARQ信息在每次传输时的码本大小可变的HARQ反馈方式。
终端设备接收网络设备发送的第一信道组，并确定该第一信道组对应的HARQ信息。并且将该第一信道组对应的HARQ信息进行缓存，直至终端设备接收到满足预设条件的第二信道或接收到用于指示重置HARQ信息的第一指示信息。
可选地，在终端设备接收到该第二信道之前，和/或，在终端设备接收到该第一指示信息之前，终端设备发送了至少一次该第一信道组对应的HARQ信息。
例如，终端设备在接收到该第二信道或该第一指示信息之前，对第一信道组对应的HARQ信息进行了初传，或者进行了初传和至少一次重传。
若终端设备在接收到该第二信道或该第一指示信息之前，发送了多次该第一信道组对应的HARQ 信息，则所述多次发送的该第一信道组对应的HARQ信息的码本大小可以相同，例如图2中所示的方式1；或者所述多次发送的该第一信道组对应的HARQ信息的码本大小可以不同，例如图2中所示的方式2。
可选地，终端设备接收到满足预设条件的该第二信道，包括：终端设备接收到满足该预设条件的用于调度第二信道的下行信道，和/或终端设备接收到满足预设条件的该第二信道中承载的数据。
例如，PDSCH满足预设条件时终端设备可以重置第一信道组对应的HARQ信息。
又例如，用于调度PDSCH的PDCCH满足预设条件时终端设备可以重置第一信道组对应的HARQ信息。也就是说，该PDCCH满足预设条件时即可重置第一信道组对应的HARQ信息，而不用考虑该PDCCH调度的PDSCH的情况。
例如，终端设备接收到满足预设条件的PDSCH，或者接收到PDCCH且其中该PDCCH用于调度满足预设条件的PDSCH时，终端设备重置第一信道组对应的HARQ信息。
可选地，终端设备发送该第一信道组对应的HARQ信息和终端设备接收该第二信道之间的时间间隔，大于或者等于第一预设值；和/或，终端设备发送该第一信道组对应的HARQ信息和终端设备接收该第一指示信息之间的时间间隔大于或者等于该第一预设值。
该第一预设值是网络设备根据其处理时间确定的，例如网络设备可以根据其对PDSCH、PDCCH、PUCCH等信道或信号等的处理时间确定的。
该第一预设值可以是网络设备为终端设备配置的，或者是协议约定的。
终端设备在接收到满足条件的第二信道时，如果接收到该第二信道的时刻，与发送HARQ信息的时刻例如第一次或最后一次发送该HARQ信息的时刻之间的时间间隔大于或等于该第一预设值，则终端设备重置该第一信道组对应的HARQ信息。
同样，如果终端设备在接收到用于指示HARQ信息重置的第一指示信息时，如果接收到该第一指示信息的时刻，与发送HARQ信息的时刻例如第一次或最后一次发送该HARQ信息的时刻之间的时间间隔大于或等于该第一预设值，则终端设备重置该第一信道组对应的HARQ信息。
首先结合图4至图7，描述终端设备如何基于满足预设条件的第二信道重置HARQ信息。
在一种实现方式中，该预设条件包括：该第二信道的HARQ进程号与该第一信道组中的第一信道的HARQ进程号相同。
该实施例中，如果终端设备接收到的第二信道的HARQ进程号与该第一信道组中的任意一个信道的HARQ进程号相同，终端设备重置该第一信道组对应的HARQ。
当终端设备接收到网络设备调度的一个HARQ进程后，如果再次收到网络设备调度的该HARQ进程，表明网络设备已经获得了上一次调度的该HARQ进程对应的HARQ信息。因此上一次调度的该HARQ进程所属的信道组对应的HARQ信息可以被清除。
以图4为例，网络设备指示终端设备在PUCCH资源0上发送第一信道组即信道组#0对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，且PDSCH 0和PDSCH 1的HARQ进程号分别为0和1。终端设备由于LBT失败等原因未能在PUCCH资源0发送信道组#0对应的HARQ信息，或者网络设备未能检测到PUCCH资源0上的该信道组#0对应的HARQ信息，那么网络设备可以指示终端设备在PUCCH资源1上对信道组#0对应的HARQ信息进行重传。如图4所示，网络设备指示终端设备在PUCCH资源1上发送信道组#0对应的HARQ信息和信道组#1对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，信道组#1包括PDSCH 2、PDSCH3和PDSCH 4。
网络设备继续向终端设备发送信道组#2，该信道组#2中包括PDSCH 5、PDSCH 6和PDSCH 7。可以发现，信道组#2中的PDSCH 7的HARQ进程号与信道组#0中的PDSCH0的HARQ进程号相同，均为0，那么终端设备接收到PDSCH 7时可以重置信道组#0对应的HARQ信息。
因为网络设备既然已经重复使用了HARQ进程号0，那么说明此前使用HARQ进程号0时对应的信道组的HARQ信息已经成功被接收，该HARQ进程结束，因而终端设备可以对第一信道组的HARQ信息进行重置。
在图4中，PDSCH 8的HARQ进程号与信道组#0中的PDSCH 1的HARQ进程号相同，均为1。如果终端设备没有接收到PDSCH 7，那么终端设备还可以在接收到PDSCH 8时重置信道组#0对应的HARQ信息。也就是说，满足预设条件的该第二信道包括PDSCH 7和PDSCH 8中的至少一个，即终端设备第一次接收到满足预设条件的PDSCH时重置第一信道组对应的HARQ信息。
类似地，PDSCH 9和PDSCH 10的进程号分别为2或3，分别与信道组#1中的PDSCH 2和PDSCH 3的进程号相同，因此终端设备在接收到PDSCH 9和PDSCH 10中的至少一个时，可以重置信道组#1对应的HARQ信息，即清除PDSCH 2和PDSCH 3对应的HARQ信息。
由于信道组#0中的PDSCH 0和PDSCH 1对应的HARQ信息已经清除，因此网络设备指示终端设 备在PUCCH资源3上发送信道组#0对应的HARQ信息时，该HARQ信息为信道组#0中的PDSCH 8、PDSCH 9和PDSCH 10对应的HARQ信息。
进一步地，可选地，终端设备在接收到该第二信道，且该第二信道中包括新传数据时，重置该第一信道组对应的HARQ信息。
终端设备例如可以通过用于调度第二信道的DCI中包括的新数据指示(New Data Indicator，NDI)确定该第二信道中是否包括新传数据，例如当该NDI信息翻转时，表示该第二信道中包括新传数据。
如果只限定HARQ进程的重调度，一种可能的情况是网络设备在没有收到终端设备的HARQ信息时，可能将之前调度终端设备接收的HARQ进程当作NACK处理。为了避免出现这种情况下终端设备错误重置信道组内的HARQ，可以进一步限定终端设备在收到网络设备的同一HARQ进程重调度且该HARQ进程的数据为新传数据时，即网络设备接收到终端设备在上一次反馈的该HARQ进程对应的ACK信息时，终端设备才认为该HARQ进程上一次反馈时所属的信道组对应的HARQ信息可以被清除。
在另一中实现方式中，该预设条件包括：该第二信道所属的信道组的组编号与该第一信道组的组编号相同。
该实施例中，如果终端设备接收到的第二信道所属的信道组的组编号与该第一信道组的组编号相同，终端设备重置该第一信道组对应的HARQ信息。该实现方式尤其适用于码本大小不变的HARQ反馈方式中。
用于发送第一信道组对应的HARQ信息的第一上行资源确定后，或者在该第一资源上发送了该第一信道组对应的HARQ信息后，如果终端设备又接收到网络设备调度的属于该第一信道组(即组编号相同)的PDSCH，由于第一信道组对应的HARQ码本的初传和重传的码本大小不变，该PDSCH对应的HARQ信息就不能和第一上行资源上的第一信道组对应的HARQ信息一起传输，这就表明网络设备已经获得了该第一信道组对应的HARQ信息，从而该第一信道组对应的HARQ信息可以被清除。
以图5为例，网络设备指示终端设备在PUCCH资源0上发送第一信道组即信道组#0对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1。终端设备由于LBT失败等原因未能在PUCCH资源0发送信道组#0对应的HARQ信息，或者网络设备未能检测到PUCCH资源0上的该信道组#0对应的HARQ信息，那么网络设备可以指示终端设备在PUCCH资源1上对信道组#0对应的HARQ信息进行重传。如图5所示，网络设备指示终端设备在PUCCH资源1上发送信道组#0对应的HARQ信息和信道组#1对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，信道组#1包括PDSCH 2、PDSCH3和PDSCH 4。网络设备继续向终端设备发送信道组#2，该信道组#2中包括PDSCH 5、PDSCH 6和PDSCH 7，终端设备基于网络设备的指示，在PUCCH资源2上发送信道组#2对应的HARQ信息。
在信道组#2之后，网络设备向终端设备发送了PDSCH 8、PDSCH 9和PDSCH 10。可以发现，PDSCH 8、PDSCH 9和PDSCH 10所属的信道组的组编号与第一信道组的组编号相同，均为#0。那么终端设备接收到PDSCH 8、PDSCH 9和PDSCH 10中的至少一个时，由于他们所属的信道组的组编号与第一信道组的组编号相同，因此终端设备可以重置第一信道组对应的HARQ信息，即重置组编号为#0的信道组对应的HARQ信息。因为网络设备既然已经重复使用了组编号#0，那么说明此前使用组编号#0时对应的信道组的HARQ信息已经成功被接收，由于HARQ码本大小不变，网络设备不会重复使用组编号，因此终端设备可以对第一信道组对应的HARQ信息进行重置，即清除PDSCH 0和PDSCH 1对应的HARQ信息。
由于信道组#0中的PDSCH 0和PDSCH 1对应的HARQ信息已经清除，因此网络设备指示终端设备在PUCCH资源3上发送信道组#0对应的HARQ信息时，该HARQ信息为信道组#0中的PDSCH 8、PDSCH 9和PDSCH 10对应的HARQ信息。
可选地，所述第二信道在时域上位于第一上行资源之后，该第一上行资源用于发送该第一信道组对应的HARQ信息。
例如，该第一上行资源是终端设备根据该第一信道组中的信道对应的HARQ时序指示信息确定的。
又例如，该第一上行资源是终端设备第一次发送第一信道组对应的HARQ信息时使用的上行资源。
其中，该第二信道位于该第一上行资源之后，即终端设备在第一上行资源上初传该第一信道组对应的HARQ信息后，如果终端设备接收到满足条件的该第二信道，或者终端设备接收到满足条件的该第二信道且该第二信道与该第一上行资源之间的时间间隔大于或等于该第一预设值，则终端设备重置该第一信道组对应的HARQ信息。
可选地，第二上行资源位于该第一上行资源之后，该第二上行资源用于发送该第二信道所属的信道组对应的HARQ信息，该第二上行资源例如可以是终端设备根据该第二信道对应的HARQ时序指示信息确定的。
终端设备在第一上行资源上发送了第一信道组对应的HARQ信息后，接收到了第二信道，并基于 该第二信道所属的信道组中的信道的HARQ时序指示信息确定了第二上行资源。由于两次反馈的HARQ码本大小不变，那么终端设备根据网络设备的指示需要在两个PUCCH资源上反馈相同组编号的信道组对应的HARQ信息时，表明该组编号被网络设备重用了，那么网络设备应当已经接收到了第一个PUCCH资源上传输的第一信道组对应的HARQ信息，因此终端设备此时可以清除第一个PUCCH资源上传输的第一信道组中的各个信道的HARQ信息。
也可以理解，用于发送第一信道组对应的HARQ信息的第一上行资源确定后，或者在该第一资源上发送了该第一信道组对应的HARQ信息后，如果终端设备又接收到网络设备调度的属于该第一信道组(即组编号相同)的PDSCH，且网络设备在调度该PDSCH时重新指示了用于传输其HARQ信息的第二上行资源，由于第一信道组对应的HARQ码本的初传和重传的码本大小不变，该PDSCH对应的HARQ信息就不能和第一上行资源上的第一信道组对应的HARQ信息一起传输，这就表明网络设备已经获得了该第一信道组对应的HARQ信息，从而该第一信道组对应的HARQ信息可以被清除。
以图6为例，网络设备指示终端设备在PUCCH资源0上发送第一信道组即信道组#0对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，且PDSCH 0和PDSCH 1对应的HARQ时序指示信息分别为3和2。其中HARQ时序指示信息为3表示PDSCH 0与PUCCH资源0之间的相差3个时隙，类似地，HARQ时序指示信息为2表示PDSCH 1与PUCCH资源0之间的相差2个时隙。图6中的HARQ时序指示信息L表示网络设备还未确定该PDSCH的HARQ信息的反馈位置。
终端设备由于LBT失败等原因未能在PUCCH资源0发送信道组#0对应的HARQ信息，或者网络设备未能检测到PUCCH资源0上的该信道组#0对应的HARQ信息，那么网络设备可以指示终端设备在PUCCH资源1上对信道组#0对应的HARQ信息进行重传。如图6所示，网络设备指示终端设备在PUCCH资源1上发送信道组#0对应的HARQ信息和信道组#1对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，信道组#1包括PDSCH 2、PDSCH3和PDSCH 4。网络设备继续向终端设备发送信道组#2，该信道组#2中包括PDSCH 5、PDSCH 6和PDSCH 7，终端设备基于网络设备的指示，在PUCCH资源2上发送信道组#2对应的HARQ信息。
在信道组#2之后，网络设备向终端设备发送了PDSCH 8、PDSCH 9和PDSCH 10。可以发现，PDSCH 8、PDSCH 9和PDSCH 10所属的信道组的组编号与第一信道组的组编号相同，均为#0。另外，在接收到PDSCH 8、PDSCH 9和PDSCH 10之前，终端设备已经在PUCCH资源0和/或PUCCH资源1上发送过了信道组#0的HARQ信息，或者说PDSCH 8、PDSCH 9和PDSCH 10在PUCCH资源0和/或PUCCH资源1之后接收到；并且，终端设备根据PDSCH 9和PDSCH 10的HARQ时序指示信息，可以确定用于发送信道组#0对应的HARQ信息的第二上行资源即PUCCH资源3。那么终端设备可以重置第一信道组对应的HARQ信息，即清除PDSCH 0和PDSCH 1对应的HARQ信息。
由于信道组#0中的PDSCH 0和PDSCH 1对应的HARQ信息已经清除，因此网络设备指示终端设备在PUCCH资源3上发送信道组#0对应的HARQ信息时，终端设备在PUCCH资源3上发送信道组#0中的PDSCH 8、PDSCH 9和PDSCH 10对应的HARQ信息。
进一步地，可选地，在终端设备在接收到该第二信道，且该第二信道对应的第二下行分配指示DAI信息的值小于或等于第一信道组中的第一信道对应的第一DAI信息的值时，终端设备重置所述第一信道组对应的HARQ信息。
其中，该第一DAI信息的值用于表示该第一信道在该第一信道组中的位置，该第二DAI信息的值用于表示该第二信道在其所属的信道组中的位置。
本申请实施例中，每个信道组中的数据信道的数量小于或等于第二预设值。该第二预设值可以是网络设备为终端设备配置的，或者是协议约定的。
以该第二预设值等于4为例，每个信道组中最多可以包括四个PDSCH，假设第一信道组中从前往后依次为PDSCH 0、PDSCH 1、PDSCH 2和PDSCH 3。其中，该DAI信息的值可以为00、01、10、11，分别用于指示每个PDSCH在这4个PDSCH中的位置。例如，PDSCH 0对应的DAI信息的值为00，PDSCH 0为这4个PDSCH中的第一个PDSCH；PDSCH 1对应的DAI信息的值为01，PDSCH 1为这4个PDSCH中的第二个PDSCH；PDSCH 2对应的DAI信息的值为10，PDSCH 2为这4个PDSCH中的第三个PDSCH；PDSCH 3对应的DAI信息的值为11，PDSCH 3为这4个PDSCH中的最后一个PDSCH。
以图7为例，网络设备指示终端设备在PUCCH资源0上发送第一信道组即信道组#0对应的HARQ信息，其中信道组#0包括PDSCH 0、PDSCH 1、PDSCH 2和PDSCH 3，且PDSCH 0、PDSCH 1、PDSCH 2和PDSCH 3的DAI信息的值分别为00、01、10、11。
网络设备指示终端设备在PUCCH资源1上发送信道组#1对应的HARQ信息，其中信道组#1包括PDSCH 4、PDSCH 5、PDSCH 6和PDSCH 7，且PDSCH 4、PDSCH 5、PDSCH 6和PDSCH 7的DAI 信息分别为00、01、10、11。
在信道组#1之后，网络设备向终端设备发送了PDSCH 8、PDSCH 9和PDSCH 10，且PDSCH 8、PDSCH 9和PDSCH 10的DAI信息分别为00、01、10。可以发现，PDSCH 8、PDSCH 9和PDSCH 10所属的信道组的组编号与第一信道组的组编号相同，均为#0；并且，PDSCH 8、PDSCH 9和PDSCH 10的DAI信息的值分别与第一信道组中的PDSCH 0、PDSCH 1、PDSCH 2的DAI信息的值相同。以PDSCH 8为例，PDSCH 8所属的信道组的组编号为#0，并且PDSCH 8的DAI信息的值为00，PDSCH 8的DAI信息的值等于第一信道组中的PDSCH 0的DAI信息的值，也小于第一信道组中的PDSCH 1和PDSCH 2的DAI信息的值。由于PDSCH 8的同时满足组编号和DAI信息的条件，因此终端设备接收到的PDSCH 8时重置第一信道组对应的HARQ信息，即清除PDSCH 0至PDSCH 3对应的HARQ信息。
由于信道组#0中的PDSCH 0、PDSCH 1和PDSCH 2的HARQ信息已经清除，因此网络设备指示终端设备在PUCCH资源3上发送信道组#0对应的HARQ信息时，终端设备在PUCCH资源3上发送信道组#0中的PDSCH 8、PDSCH 9和PDSCH 10对应的HARQ信息。
每个信道组中的DAI信息的值最多只能出现一次，因此，当相同的DAI值在相同组编号的信道组中出现时，可以认为后一次出现该DAI值时，该信道组对应的HARQ信息重置。
在图5至图7中，信道组#0对应的HARQ信息的码本大小不变，是指每次针对相同PDSCH的HAQR信息的码本大小不变，而当信道组#0对应的HARQ信息被重置后，对于组编号为#0的信道组中包括的新PDSCH的HAQR信息的码本大小，其相对于重置前信道组#0对应的HARQ信息的码本大小可以不同。以图7为例，信道组#0中的PDSCH 0至PDSCH 3对应的HARQ信息在初传和重传时的码本大小保持不变。但是当其被清除后，组编号为#0的信道组中包括PDSCH 8至PDSCH 10，可以看出，PDSCH 8至PDSCH 10对应的HARQ信息的码本大小，小于PDSCH 0至PDSCH 3对应的HARQ信息的码本大小，类似地，PDSCH 8至PDSCH 10对应的HARQ信息在初传和重传时的码本大小保持不变。
下面结合图8和图9，描述终端设备如何基于用于指示重置HARQ信息的第一指示信息进行HARQ信息的重置。
该实施例中，如果终端设备接收到该第一指示信息则重置该第一信道组对应的HARQ。该方法可以适用于码本大小不变的HARQ反馈方式中，也可以适用于码本大小可变的HARQ反馈方式中。
该第一指示信息例如可以是翻转指示信息，即翻转比特。该翻转比特可以和下行授权(DL grant)一起发送。当该翻转比特的值发生翻转，例如由0变为1或者由1变为0，则表示该翻转比特对应的信道组中位于该翻转时刻之前的下行信道的HARQ信息的结束。
该第一指示信息也可以承载于其他DCI中，例如承载于上行授权(UL grant)或者不用于上下行调度的DCI，这里不做限定。
该翻转指示信息在特定条件下才生效，从而避免终端设备还未传输某一信道组对应的HARQ信息就进行重置，保证了HARQ反馈的可靠性。
以图8为例，图8所示为HARQ码本大小不变的HARQ反馈方式。网络设备指示终端设备在PUCCH资源0上发送第一信道组即信道组#0对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，且PDSCH 0和PDSCH 1对应的翻转指示信息为0。终端设备由于LBT失败等原因未能在PUCCH资源0发送信道组#0对应的HARQ信息，或者网络设备未能检测到PUCCH资源0上的该信道组#0对应的HARQ信息，那么网络设备可以指示终端设备在PUCCH资源1上对信道组#0对应的HARQ信息进行重传。如图8所示，网络设备指示终端设备在PUCCH资源1上发送信道组#0对应的HARQ信息和信道组#1对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1，信道组#1包括PDSCH 2、PDSCH3和PDSCH 4，信道组#0和信道组#1中各个信道对应的翻转指示信息仍为0。网络设备继续向终端设备发送信道组#2，该信道组#2中包括PDSCH 5、PDSCH 6和PDSCH 7，且PDSCH 5、PDSCH 6和PDSCH 7对应的翻转指示信息为0，终端设备基于网络设备的指示，在PUCCH资源2上发送信道组#2对应的HARQ信息。
在信道组#2之后，网络设备向终端设备发送了PDSCH 8、PDSCH 9和PDSCH 10。可以发现，PDSCH 8、PDSCH 9和PDSCH 10对应的翻转指示信息变为1，因此终端设备可以重置第一信道组对应的HARQ信息，即清除PDSCH 0和PDSCH 1对应的HARQ信息。
由于第一信道组中的PDSCH 0和PDSCH 1的HARQ信息已经清除，因此网络设备指示终端设备在PUCCH资源3上发送信道组#0对应的HARQ信息时，终端设备在PUCCH资源3上发送信道组#0中的PDSCH 8、PDSCH 9和PDSCH 10对应的HARQ信息。
又例如图9所示的HARQ码本大小可变的HARQ反馈方式。网络设备指示终端设备在PUCCH资源0上发送第一信道组即信道组#0对应的HARQ信息，此时信道组#0包括PDSCH 0和PDSCH 1，且PDSCH 0和PDSCH 1对应的翻转指示信息为0。终端设备由于LBT失败等原因未能在PUCCH资源0 发送信道组#0对应的HARQ信息，或者网络设备未能检测到PUCCH资源0上的该信道组#0对应的HARQ信息，那么网络设备可以指示终端设备在PUCCH资源1上对信道组#0对应的HARQ信息进行重传。如图9所示，网络设备指示终端设备在PUCCH资源1上发送信道组#0对应的HARQ信息，此时信道组#0包括PDSCH 0、PDSCH 1、PDSCH 2、PDSCH3、PDSCH 4和PDSCH 5，且信道组#0中各个信道对应的翻转指示信息仍为0。
网络设备继续向终端设备发送PDSCH 6、PDSCH 7和PDSCH 8。由于PDSCH 6、PDSCH 7和PDSCH 8对应的翻转指示信息变为1，因此终端设备可以重置第一信道组对应的HARQ信息，即清除PDSCH 0至PDSCH 5对应的HARQ信息。
由于信道组#0中的PDSCH 0至PDSCH 5的HARQ信息已经清除，因此网络设备指示终端设备在PUCCH资源2上发送信道组#0对应的HARQ信息时，终端设备在PUCCH资源2上发送信道组#0中的PDSCH 6、PDSCH 7和PDSCH 8对应的HARQ信息。
对于PDSCH 9和PDSCH 10，由于PDSCH 9和PDSCH 10对应的翻转指示信息仍为1，因此网络设备指示终端设备在PUCCH资源3上发送信道组#0对应的HARQ信息时，终端设备在PUCCH资源3上发送信道组#0中的PDSCH 6至PDSCH 10对应的HARQ信息。
在图8或图9的实施例中，对于同一个信道组例如信道组#0，在终端设备接收到第一指示信息翻转之前，终端设备发送了至少一次该信道组#0对应的HARQ信息。可选地，终端设备发送信道组#0对应的HARQ信息和终端设备接收到翻转的第一指示信息之间的时间间隔大于或者等于第一预设值。
可选地，对于同一个信道组例如信道组#0，如果在终端设备接收到第一指示信息翻转之前，终端设备没有发送该信道组#0对应的HARQ信息，或者，终端设备发送信道组#0对应的HARQ信息和终端设备接收到翻转的第一指示信息之间的时间间隔小于第一预设值，终端设备根据第一指示信息重置信道组#0对应的HARQ信息，或者说，终端设备丢弃第一指示信息翻转之前信道组#0中对应的HARQ信息。
基于上面的描述，终端设备在接收到满足条件的第二信道或者接收到用于指示HARQ信息重置的第一指示信息时，重置第一信道组对应的HARQ信息，使得终端设备能够灵活地对HARQ信息进行处理，减小了HARQ信息传输过程中的比特开销，实现了非授权频谱上HARQ信息的有效传输。
图10所示为本申请实施例的HARQ信息反馈的方法1000。该方法可以由终端设备和网络设备执行，该网络设备例如可以为前述图1中的网络设备110，该终端设备例如可以为前述图1中的终端设备120。该方法可以应用于非授权频谱或者授权频谱。如图10所示，该方法包括以下步骤中的部分或全部，其中：
在1010中，网络设备向终端设备发送第二指示信息，该第二指示信息指示用于反馈HARQ信息的参数。
该参数例如可以包括组编号、信道组重置命令等，该信道组重置命令用于终端设备确定是否重置该组编号的信道组对应的HARQ信息。
在1020中，终端设备接收网络设备发送的第二指示信息。
在1030中，终端设备根据该第二指示信息，确定用于反馈HARQ信息的参数。
可选地，该方法还包括：网络设备向终端设备发送第三指示信息；相应地，终端设备接收该第三指示信息，其中，该第三指示信息用于指示HARQ信息的反馈方式。该第三指示信息例如可以是高层信令，比如无线资源控制(Radio Resoure Control，RRC)信令。
其中，该HARQ信息的反馈方式包括第一反馈方式和第二反馈方式。该第一反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小相同，该第二反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小可变，例如基于终端设备接收到的翻转指示信息而变化。
该第一反馈方式即前述的码本大小不变的HARQ反馈方式，例如图2中所示的方式1。可选地，当终端设备采用该第一反馈方式对第一信道组对应的HARQ信息进行反馈时，终端设备可以根据前述图3中所述的方法对信道组对应的HARQ信息进行重置，即终端设备在接收到满足预设条件的第二信道时，和/或在接收到用于指示重置HARQ信息的第一指示信息时，重置该第一信道组对应的HARQ信息。终端设备采用第一反馈方式时具体如何重置第一信道组对应的HARQ信息，具体可以参考前述对图3至图9的描述，为了简洁，这里不在赘述。
该第二反馈方式即前述的码本大小可变的HARQ反馈方式，例如图2中所示的方式2。可选地，当终端设备采用该第二反馈方式对第一信道组对应的HARQ信息进行反馈时，终端设备可以根据翻转指示信息确定是否重置该第一信道组对应的HARQ信息，例如，终端设备在接收到第二信道且第二信道对应的翻转指示信息的值发生变化时，终端设备重置该第一信道组对应的HARQ信息，其中，第二 信道所属的信道组的组编号与第一信道组的组编号相同。
以图11为例，终端设备若采用第一反馈方式，则每次反馈的相同组编号的信道组对应的HARQ码本的大小不变。终端设备可以基于网络设备的指示，在PUCCH资源0上发送信道组#对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1；并在PUCCH资源1上发送信道组#0和信道组#1对应的HARQ信息，其中，信道组#0包括PDSCH 0和PDSCH 1，其对应的HARQ码本大小不变，信道组#1包括PDSCH 2至PDSCH 4；并在PUCCH资源2上发送信道组#2对应的HARQ信息，其中，信道组#2包括PDSCH 5至PDSCH 7；并在PUCCH资源3上发送信道组#3对应的HARQ信息，其中，信道组#3包括PDSCH 8至PDSCH 10。
终端设备若采用第二反馈方式，则每次反馈的相同组编号的信道组对应的HARQ码本的大小可以发生变化。终端设备可以基于网络设备的指示，在PUCCH资源0上发送信道组#对应的HARQ信息，其中信道组#0包括PDSCH 0和PDSCH 1；并在PUCCH资源1上发送信道组#1对应的HARQ信息，其中信道组#1包括PDSCH 2至PDSCH 4；并在PUCCH资源2上发送信道组#0对应的HARQ信息，此时信道组#0包括PDSCH 0、PDSCH 1、PDSCH 5、PDSCH 6和PDSCH 7，其对应的HARQ码本的大小发生了变化；并在PUCCH资源3上发送信道组#1对应的HARQ信息，由于PDSCH 8至PDSCH 10对应的翻转指示信息由0变为1，因此终端设备重置信道组#1对应的HARQ信息，此时信道组#1包括PDSCH 8至PDSCH 10，终端设备在PUCCH资源3上发送的是PDSCH 8至PDSCH 10对应的HARQ信息。
可选地，网络设备向终端设备发送的下行授权中包括N比特的该第二指示信息，该第二指示信息用于终端设备确定HARQ反馈的相关信息。N为正整数，例如N＝2。
如果终端设备采用第一反馈方式，该N比特用于指示该下行授权或该下行授权调度的PDSCH所属的组编号。
其中，该信道组对应的HARQ信息如何被重置可以通过隐式的方式实现，例如可以使用前述图3至图9中描述的任意一种方式。或者说，如果终端设备被配置为使用第一反馈方式进行HARQ反馈，那么HARQ反馈指示域即该第二指示信息中的该N比特被配置为组编号的信息。
如果终端设备采用第二反馈方式，该N比特中的N1比特用于指示该下行授权或该下行授权调度的PDSCH所属的组编号；该N比特中的N2比特(例如另外1比特)用于指示该组编号的信道组对应的HARQ信息是否被重置。
或者说，如果终端设备被配置使用第二反馈方式进行HARQ反馈，那么HARQ反馈指示域即第二指示信息中包括两个信息域，其中一个信息域包括该N比特中的N1比特，该N1比特被配置为信道组重置命令，另一个信息域包括该N比特中的N2比特，该N2比特被配置为组编号的信息。例如，N＝2，N1＝N2＝1。
应理解，第一反馈方式的时延较短，但是需要较多的信道分组。而第二反馈方式需要的信道分组较少，但是反馈时延较长，且反馈的HARQ码本可能较大。在具体实现时，网络设备可以基于不同的场景选择合适的HARQ反馈方式，并指示给终端设备。
这样，无论网络设备为终端设备配置第一反馈方式还是第二反馈方式，下行授权中的DCI中的用于确定HARQ反馈的相关信息的动态信令的开销是一致的，不需要增加额外的动态信令开销或增加终端设备的盲检复杂度，就获得HARQ反馈配置的灵活性。
需要说明的是，在不冲突的前提下，本申请描述的各个实施例和/或各个实施例中的技术特征可以任意的相互组合，组合之后得到的技术方案也应落入本申请的保护范围。
在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的消息传输的方法，下面将结合图12至图17，描述根据本申请实施例的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图12是根据本申请实施例的终端设备1200的示意性框图。如图12所示，该终端设备1200包括处理单元1210和存储单元1220。其中：
处理单元1210用于：确定第一信道组对应的HARQ信息；
存储单元1220用于：缓存所述第一信道组对应的HARQ信息；
处理单元1210还用于：在所述终端设备接收到满足预设条件的第二信道时，和/或在所述终端设备接收到用于指示重置HARQ信息的第一指示信息时，控制所述存储单元重置所述第一信道组对应的HARQ信息。
其中，所述预设条件包括：所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，和/或，所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同。
因此，终端设备根据是否检测到网络设备发送的唤醒信号，确定是否需要在该唤醒信号之后的DRX周期中启动DRX持续时间定时器，从而在不需要唤醒的情况下无需唤醒监测PDCCH，因此进一步降低了DRX过程中终端设备的功耗。
可选地，在所述终端设备接收到所述第二信道之前，和/或，在所述终端设备接收到所述第一指示信息之前，所述终端设备发送了至少一次所述第一信道组对应的HARQ信息。
可选地，所述终端设备发送了多次所述第一信道组对应的HARQ信息，所述多次发送的所述第一信道组对应的HARQ信息的码本大小相同或者不同。
可选地，所述终端设备发送所述第一信道组对应的HARQ信息和所述终端设备接收所述第二信道之间的时间间隔大于或者等于第一预设值，和/或，所述终端设备发送所述第一信道组对应的HARQ信息和所述终端设备接收所述第一指示信息之间的时间间隔大于或者等于所述第一预设值。
可选地，所述第一预设值是所述网络设备根据其处理时间确定的。
可选地，所述第一预设值是所述网络设备为所述终端设备配置的，或者是协议约定的。
可选地，所述预设条件包括所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，其中，所述处理单元1210具体用于：在所述终端设备接收到所述第二信道，且所述第二信道中包括新传数据时，重置所述第一信道组对应的HARQ信息。
可选地，所述预设条件包括所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同，其中，所述处理单元1210具体用于：在所述终端设备接收到所述第二信道，且所述第二信道对应的第二DAI信息的值小于或等于所述第一信道对应的第一DAI信息的值时，所述终端设备重置所述第一信道组对应的HARQ信息，其中，所述第一DAI信息的值用于表示所述第一信道在所述第一信道组中的位置，所述第二DAI信息的值用于表示所述第二信道在其所属的信道组中的位置。
可选地，所述预设条件包括所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同，其中，所述第二信道在时域上位于第一上行资源之后，所述第一上行资源用于发送所述第一信道组对应的HARQ信息。
可选地，所述第一上行资源是所述终端设备第一次发送所述第一信道组对应的HARQ信息时使用的上行资源，和/或，所述第一上行资源是所述终端设备根据所述第一信道组中的信道对应的HARQ时序指示信息确定的。
可选地，第二上行资源位于所述第一上行资源之后，所述第二上行资源用于发送所述第二信道所属的信道组对应的HARQ信息，所述第二上行资源是所述终端设备根据所述第二信道对应的HARQ时序指示信息确定的。
可选地，每个信道组中的数据信道的数量小于或等于第二预设值。
可选地，所述第二预设值是所述网络设备为所述终端设备配置的，或者是协议约定的
可选地，所述终端设备接收到满足预设条件的所述第二信道，包括：所述终端设备接收到满足所述预设条件的用于调度所述第二信道的下行信道，或者所述终端设备接收到满足所述预设条件的所述第二信道中承载的数据。
应理解，该终端设备1200可以执行本申请实施例的方法300中由终端设备执行的相应操作，为了简洁，在此不再赘述。
图13是根据本申请实施例的终端设备1300的示意性框图。如图13所示，该终端设备1300包括收发单元1310和处理单元1320。其中：
收发单元1310用于：接收网络设备发送的第二指示信息，该第二指示信息指示用于反馈HARQ信息的参数。
处理单元1320用于：根据该第二指示信息，确定用于反馈HARQ信息的参数。
可选地，该方法还包括：终端设备接收网络设备发送的第三指示信息，其中，该第三指示信息用于指示HARQ信息的反馈方式。该第三指示信息例如可以是高层信令，比如RRC信令。
其中，该HARQ信息的反馈方式包括第一反馈方式和第二反馈方式。该第一反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小相同，该第二反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小可变，例如基于终端设备接收到的翻转指示信息而变化。
可选地，当终端设备采用该第一反馈方式对第一信道组对应的HARQ信息进行反馈时，处理单元1320具体用于：在接收到满足预设条件的第二信道时，和/或在接收到用于指示重置HARQ信息的第一指示信息时，重置该第一信道组对应的HARQ信息。
可选地，当终端设备采用该第二反馈方式对第一信道组对应的HARQ信息进行反馈时，处理单元1320具体用于：在接收到第二信道且第二信道对应的翻转指示信息的值发生变化时，终端设备重置该 第一信道组对应的HARQ信息，其中，第二信道所属的信道组的组编号与第一信道组的组编号相同。
应理解，该终端设备1300可以执行本申请实施例的方法1000中由终端设备执行的相应操作，为了简洁，在此不再赘述。
图14是根据本申请实施例的网络设备1400的示意性框图。如图14所示，该网络设备1400包括处理单元1410和发送单元1420。其中：
处理单元141用于：生成第二指示信息，该第二指示信息指示用于反馈HARQ信息的参数。
发送单元1420用于：向终端设备发送该第二指示信息。
可选地，该方法还包括：网络设备向终端设备发送第三指示信息，其中，该第三指示信息用于指示HARQ信息的反馈方式。该第三指示信息例如可以是高层信令，比如RRC信令。
其中，该HARQ信息的反馈方式包括第一反馈方式和第二反馈方式。该第一反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小相同，该第二反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小可变，例如基于终端设备接收到的翻转指示信息而变化。
应理解，该网络设备1400可以执行本申请实施例的方法1000中由网络设备执行的相应操作，为了简洁，在此不再赘述。
图15是本申请实施例提供的一种通信设备1500示意性结构图。图15所示的通信设备1500包括处理器1510，处理器1510可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图15所示，通信设备1500还可以包括存储器1520。其中，处理器1510可以从存储器1520中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1520可以是独立于处理器1510的一个单独的器件，也可以集成在处理器1510中。
可选地，如图15所示，通信设备1500还可以包括收发器1530，处理器1510可以控制该收发器1530与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1530可以包括发射机和接收机。收发器1530还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1500具体可为本申请实施例的终端设备，并且该通信设备1500可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1500具体可为本申请实施例的网络设备，并且该通信设备1500可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
图16是本申请实施例的通信装置的示意性结构图。图16所示的通信装置1600包括处理器1610，处理器1610可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图16所示，通信装置1600还可以包括存储器1620。其中，处理器1610可以从存储器1620中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1620可以是独立于处理器1610的一个单独的器件，也可以集成在处理器1610中。
可选地，该通信装置1600还可以包括输入接口1630。其中，处理器1610可以控制该输入接口1630与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该通信装置1600还可以包括输出接口1640。其中，处理器1610可以控制该输出接口1640与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该通信装置1600可应用于本申请实施例中的网络设备，并且该通信装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信装置1600可应用于本申请实施例中的终端设备，并且该通信装置可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信装置1600可以为芯片。
该芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例中的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取 存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。
其中，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图17是根据本申请实施例的通信系统1700的示意性框图。如图17所示，该通信系统1700包括网络设备1710和终端设备1720。
其中，所述网络设备1710用于：向终端设备发送第二指示信息，所述第二指示信息用于指示HARQ信息的反馈方式。
所述终端设备1720用于：接收网络设备发送的第二指示信息；根据所述第二指示信息确定HARQ信息的反馈方式。
其中，该HARQ信息的反馈方式包括第一反馈方式和第二反馈方式。该第一反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小相同，该第二反馈方式中终端设备每次发送的相同组编号的信道组对应的HARQ信息的码本大小可变，例如基于终端设备接收到的翻转指示信息而变化。
该网络设备1710可以用于实现本申请实施例的方法中由网络设备实现的相应的功能，以及该网络设备1710的组成可以如图14中的网络设备1400所示，为了简洁，在此不再赘述。
该终端设备1720可以用于实现本申请实施例的方法中由终端设备实现的相应的功能，以及该终端设备1720的组成可以如图13中的终端设备1300所示，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，不再赘述。可选地，该计算机可读存储介质可应用于本申请实施例中的终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选地，该计算机程序产品可应用于本申请实施例中的终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选地，该计算机程序可应用于本申请实施例中的终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
本发明实施例中的术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本发明实施例中，“与A相应(对应)的B”表示B与A相关联，根据A可以确定B。但还应 理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清除地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (38)

  1. 一种混合自动重传请求HARQ信息反馈的方法，其特征在于，包括：
    终端设备确定第一信道组对应的HARQ信息；
    所述终端设备在接收到满足预设条件的第二信道时，和/或在接收到用于指示重置HARQ信息的第一指示信息时，重置所述第一信道组对应的HARQ信息；
    其中，所述预设条件包括：所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，和/或，所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同。
  2. 根据权利要求1所述的方法，其特征在于，在所述终端设备接收到所述第二信道之前，和/或，在所述终端设备接收到所述第一指示信息之前，所述终端设备发送了至少一次所述第一信道组对应的HARQ信息。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备发送了多次所述第一信道组对应的HARQ信息，所述多次发送的所述第一信道组对应的HARQ信息的码本大小相同或者不同。
  4. 根据权利要求2或3所述的方法，其特征在于，所述终端设备发送所述第一信道组对应的HARQ信息和所述终端设备接收所述第二信道之间的时间间隔大于或者等于第一预设值，和/或，所述终端设备发送所述第一信道组对应的HARQ信息和所述终端设备接收所述第一指示信息之间的时间间隔大于或者等于所述第一预设值。
  5. 根据权利要求4所述的方法，其特征在于，所述第一预设值是所述网络设备根据其处理时间确定的。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第一预设值是所述网络设备为所述终端设备配置的，或者是协议约定的。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述预设条件包括所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，
    其中，所述终端设备在接收到满足预设条件的第二信道时重置所述第一信道组对应的HARQ信息，包括：
    所述终端设备在接收到所述第二信道，且所述第二信道中包括新传数据时，重置所述第一信道组对应的HARQ信息。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述预设条件包括所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同，
    其中，所述终端设备在接收到满足预设条件的第二信道时重置所述第一信道组对应的HARQ信息，包括：
    在所述终端设备接收到所述第二信道，且所述第二信道对应的第二下行分配指示DAI信息的值小于或等于所述第一信道对应的第一DAI信息的值时，所述终端设备重置所述第一信道组对应的HARQ信息，其中，所述第一DAI信息的值用于表示所述第一信道在所述第一信道组中的位置，所述第二DAI信息的值用于表示所述第二信道在其所属的信道组中的位置。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述预设条件包括所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同，
    其中，所述第二信道在时域上位于第一上行资源之后，所述第一上行资源用于发送所述第一信道组对应的HARQ信息。
  10. 根据权利要求9所述的方法，其特征在于，所述第一上行资源是所述终端设备第一次发送所述第一信道组对应的HARQ信息时使用的上行资源，和/或，所述第一上行资源是所述终端设备根据所述第一信道组中的信道对应的HARQ时序指示信息确定的。
  11. 根据权利要求9或10所述的方法，其特征在于，第二上行资源位于所述第一上行资源之后，所述第二上行资源用于发送所述第二信道所属的信道组对应的HARQ信息，所述第二上行资源是所述终端设备根据所述第二信道对应的HARQ时序指示信息确定的。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，每个信道组中的数据信道的数量小于或等于第二预设值。
  13. 根据权利要求12所述的方法，其特征在于，所述第二预设值是所述网络设备为所述终端设备配置的，或者是协议约定的。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述终端设备接收到满足预设条件的所述第二信道，包括：所述终端设备接收到满足所述预设条件的用于调度所述第二信道的下行信道，或者所述终端设备接收到满足预设条件的所述第二信道中承载的数据。
  15. 一种终端设备，其特征在于，包括：
    处理单元，用于确定第一信道组对应的HARQ信息；
    存储单元，用于缓存所述第一信道组对应的HARQ信息；
    所述处理单元还用于，在所述终端设备接收到满足预设条件的第二信道时，和/或在所述终端设备接收到用于指示重置HARQ信息的第一指示信息时，控制所述存储单元重置所述第一信道组对应的HARQ信息；
    其中，所述预设条件包括：所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，和/或，所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同。
  16. 根据权利要求15所述的终端设备，其特征在于，在所述终端设备接收到所述第二信道之前，和/或，在所述终端设备接收到所述第一指示信息之前，所述终端设备发送了至少一次所述第一信道组对应的HARQ信息。
  17. 根据权利要求16所述的终端设备，其特征在于，所述终端设备发送了多次所述第一信道组对应的HARQ信息，所述多次发送的所述第一信道组对应的HARQ信息的码本大小相同或者不同。
  18. 根据权利要求16或17所述的终端设备，其特征在于，所述终端设备发送所述第一信道组对应的HARQ信息和所述终端设备接收所述第二信道之间的时间间隔大于或者等于第一预设值，和/或，所述终端设备发送所述第一信道组对应的HARQ信息和所述终端设备接收所述第一指示信息之间的时间间隔大于或者等于所述第一预设值。
  19. 根据权利要求18所述的终端设备，其特征在于，所述第一预设值是所述网络设备根据其处理时间确定的。
  20. 根据权利要求18或19所述的终端设备，其特征在于，所述第一预设值是所述网络设备为所述终端设备配置的，或者是协议约定的。
  21. 根据权利要求15至20中任一项所述的终端设备，其特征在于，所述预设条件包括所述第二信道的HARQ进程号与所述第一信道组中的第一信道的HARQ进程号相同，
    其中，所述处理单元具体用于：
    在所述终端设备接收到所述第二信道，且所述第二信道中包括新传数据时，重置所述第一信道组对应的HARQ信息。
  22. 根据权利要求15至21中任一项所述的终端设备，其特征在于，所述预设条件包括所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同，
    其中，所述处理单元具体用于：
    在所述终端设备接收到所述第二信道，且所述第二信道对应的第二下行分配指示DAI信息的值小于或等于所述第一信道对应的第一DAI信息的值时，所述终端设备重置所述第一信道组对应的HARQ信息，其中，所述第一DAI信息的值用于表示所述第一信道在所述第一信道组中的位置，所述第二DAI信息的值用于表示所述第二信道在其所属的信道组中的位置。
  23. 根据权利要求15至22中任一项所述的终端设备，其特征在于，所述预设条件包括所述第二信道所属的信道组的组编号与所述第一信道组的组编号相同，
    其中，所述第二信道在时域上位于第一上行资源之后，所述第一上行资源用于发送所述第一信道组对应的HARQ信息。
  24. 根据权利要求23所述的终端设备，其特征在于，所述第一上行资源是所述终端设备第一次发送所述第一信道组对应的HARQ信息时使用的上行资源，和/或，所述第一上行资源是所述终端设备根据所述第一信道组中的信道对应的HARQ时序指示信息确定的。
  25. 根据权利要求23或24所述的终端设备，其特征在于，第二上行资源位于所述第一上行资源之后，所述第二上行资源用于发送所述第二信道所属的信道组对应的HARQ信息，所述第二上行资源是所述终端设备根据所述第二信道对应的HARQ时序指示信息确定的。
  26. 根据权利要求15至25中任一项所述的终端设备，其特征在于，每个信道组中的数据信道的数量小于或等于第二预设值。
  27. 根据权利要求26所述的终端设备，其特征在于，所述第二预设值是所述网络设备为所述终端设备配置的，或者是协议约定的。
  28. 根据权利要求15至27中任一项所述的终端设备，其特征在于，所述终端设备接收到满足预设条件的所述第二信道，包括：所述终端设备接收到满足所述预设条件的用于调度所述第二信道的下行信道，或者所述终端设备接收到满足预设条件的所述第二信道中承载的数据。
  29. 一种终端设备，其特征在于，所述终端设备包括处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行权利要求1至14中任一项所述的方法。
  30. 一种网络设备，其特征在于，所述网络设备包括处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行权利要求15至28中任一项所述的方法。
  31. 一种通信装置，其特征在于，所述通信装置包括处理器，所述处理器用于从存储器中调用并运行计算机程序，使得安装有所述通信装置的设备执行权利要求1至14中任一项所述的方法。
  32. 一种通信装置，其特征在于，所述通信装置包括处理器，所述处理器用于从存储器中调用并运行计算机程序，使得安装有所述通信装置的设备执行权利要求权利要求15至28中任一项所述的方法。
  33. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行权利要求1至14中任一项所述的方法。
  34. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行权利要求15至28中任一项所述的方法。
  35. 一种计算机程序产品，其特征在于，包括计算机程序指令，所述计算机程序指令使得计算机执行权利要求1至14中任一项所述的方法。
  36. 一种计算机程序产品，其特征在于，包括计算机程序指令，所述计算机程序指令使得计算机执行权利要求15至28中任一项所述的方法。
  37. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行权利要求1至14中任一项所述的方法。
  38. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行权利要求15至28中任一项所述的方法。
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