WO2021226850A1 - Procédé de rétroaction de livre de codes harq-ack, dispositif terminal, et dispositif de réseau - Google Patents

Procédé de rétroaction de livre de codes harq-ack, dispositif terminal, et dispositif de réseau Download PDF

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Publication number
WO2021226850A1
WO2021226850A1 PCT/CN2020/089888 CN2020089888W WO2021226850A1 WO 2021226850 A1 WO2021226850 A1 WO 2021226850A1 CN 2020089888 W CN2020089888 W CN 2020089888W WO 2021226850 A1 WO2021226850 A1 WO 2021226850A1
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WIPO (PCT)
Prior art keywords
dci format
harq
terminal device
ack
information
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PCT/CN2020/089888
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English (en)
Chinese (zh)
Inventor
吴作敏
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.)
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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 CN202080099111.6A priority Critical patent/CN115336215A/zh
Priority to PCT/CN2020/089888 priority patent/WO2021226850A1/fr
Publication of WO2021226850A1 publication Critical patent/WO2021226850A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the embodiments of the present application relate to the field of communications, and more specifically, to a HARQ-ACK codebook feedback method, terminal equipment, and network equipment.
  • the spectrum used is a shared spectrum.
  • a Downlink Control Information (DCI) format is supported to indicate the dormant or non-dormant behavior of the secondary cell.
  • DCI Downlink Control Information
  • the terminal device is configured or activated at the same time for other types of feedback, there is no relevant feedback scheme corresponding to the DCI format indicating the dormant or non-dormant behavior of the secondary cell at this stage, which affects the NR on the shared spectrum.
  • the embodiment of the application provides a HARQ-ACK codebook feedback method, terminal equipment, and network equipment.
  • the DCI format indicates the dormant or non-dormant behavior of the secondary cell
  • the terminal equipment feeds back the enhanced dynamic codebook
  • the feedback information corresponding to the DCI format used to indicate the dormant or non-sleeping behavior of the secondary cell can be fed back at the same time, or the feedback information corresponding to the DCI format used to indicate the dormant or non-sleeping behavior of the secondary cell is not fed back, which can reduce the complexity of the terminal equipment. Degree, thereby optimizing communication on the shared spectrum.
  • a HARQ-ACK codebook feedback method includes:
  • the terminal device receives the first DCI format on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format includes the first group identifier and the first A new feedback indicator (New feedback indicator, NFI) information and first downlink assignment index (Downlink Assignment Index, DAI) information;
  • NFI new feedback indicator
  • DAI Downlink Assignment Index
  • the terminal device generates a first HARQ-ACK codebook according to at least one of the first group identifier, the first NFI information, and the first DAI information, where the first HARQ-ACK codebook includes a first bit sequence, and The first bit sequence includes Acknowledgement (ACK) information corresponding to the first DCI format.
  • ACK Acknowledgement
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • a HARQ-ACK codebook feedback method includes:
  • the network device sends a first DCI format to the terminal device on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format includes the first group Identification, first NFI information, and first DAI information;
  • the network device receives the first HARQ-ACK codebook sent by the terminal device, where the first HARQ-ACK codebook is the terminal device according to the first group identifier, the first NFI information, and the first DAI information Is generated by at least one item of, the first HARQ-ACK codebook includes a first bit sequence, and the first bit sequence includes ACK information corresponding to the first DCI format.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • a HARQ-ACK codebook feedback method includes:
  • the terminal device receives the first DCI format on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format includes the first group identifier and the first -NFI information and first DAI information, and the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback;
  • the terminal device does not feed back the ACK information corresponding to the first DCI format according to the first DCI format.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • a HARQ-ACK codebook feedback method includes:
  • the network device sends the first DCI format to the terminal device on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format includes the first group ID, first NFI information, and first DAI information, and the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback;
  • the network device does not expect the terminal device to feed back the ACK information corresponding to the first DCI format according to the first DCI format.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • a terminal device which is used to execute the method in the above-mentioned first aspect or each of its implementation manners.
  • the terminal device includes a functional module for executing the method in the foregoing first aspect or each of its implementation manners.
  • a network device is provided, which is used to execute the method in the above second aspect or each of its implementation manners.
  • the network device includes a functional module for executing the method in the foregoing second aspect or each of its implementation manners.
  • a terminal device which is used to execute the method in the third aspect or its implementation manners.
  • the terminal device includes a functional module for executing the method in the foregoing third aspect or each of its implementation manners.
  • a network device which is used to execute the method in the fourth aspect or its implementation manners.
  • the network device includes a functional module for executing the method in the foregoing fourth aspect or each of its implementation manners.
  • 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 above-mentioned first aspect or each of its implementation modes.
  • 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 method in the second aspect or its implementation manners.
  • 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, and execute the method in the third aspect or its implementation manners.
  • 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 method in the foregoing fourth aspect or each of its implementation manners.
  • a device for implementing any one of the foregoing first to fourth aspects or the method in each implementation manner thereof.
  • the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first aspect to the fourth aspect or any of the implementation modes thereof method.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof.
  • a computer program product including computer program instructions that cause a computer to execute any one of the first to fourth aspects above or the method in each implementation manner thereof.
  • a computer program which when running on a computer, causes the computer to execute any one of the above-mentioned first to fourth aspects or the method in each of its implementation manners.
  • the terminal device generates the first HARQ-ACK codebook according to at least one of the first group identifier, the first NFI information, and the first DAI information, and the first HARQ-ACK
  • the codebook includes the first bit sequence, that is, the terminal device can generate the HARQ-ACK codebook based on the DCI format used to indicate the dormant or non-sleeping behavior of the secondary cell, and the HARQ-ACK codebook includes the HARQ-ACK codebook used to indicate the dormant or non-sleeping secondary cell
  • the behavior of the DCI format corresponds to the feedback information, thereby optimizing communication on the shared spectrum.
  • the terminal device when the DCI format indicates the dormant or non-dormant behavior of the secondary cell, when the terminal device feeds back the enhanced dynamic codebook, it may not feed back the dormant or non-dormant behavior of the secondary cell.
  • the feedback information corresponding to the DCI format of the non-sleeping behavior can reduce the complexity of the terminal device, thereby optimizing the communication on the shared spectrum.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a HARQ-ACK codebook feedback method provided according to an embodiment of the present application.
  • Fig. 3 is a schematic flowchart of another HARQ-ACK codebook feedback method provided according to an embodiment of the present application.
  • Fig. 4 is a schematic diagram of HARQ-ACK codebook feedback provided according to an embodiment of the present application.
  • Fig. 5 is a schematic diagram of another HARQ-ACK codebook feedback provided according to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of yet another HARQ-ACK codebook feedback provided according to an embodiment of the present application.
  • Fig. 7 is a schematic diagram of yet another HARQ-ACK codebook feedback provided according to an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of a network device according to an embodiment of the present application.
  • Fig. 10 is a schematic block diagram of another terminal device according to an embodiment of the present application.
  • Fig. 11 is a schematic block diagram of another network device provided according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 13 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • Fig. 14 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 Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NR system evolution system LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum
  • NR NR-based access to unlicensed spectrum
  • NR-U non-terrestrial communication network
  • UMTS Universal Mobile Telecommunication System
  • UMTS wireless local area network
  • WLAN Wireless Local Area Networks
  • WLAN wireless fidelity
  • WiFi Fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
  • CA Carrier Aggregation
  • DC dual connectivity
  • SA standalone
  • the communication system in the embodiment of this application can be applied to unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of this application can also be applied to licensed spectrum, where: Licensed spectrum can also be considered non-shared spectrum.
  • the embodiments of this application describe various embodiments in combination with network equipment and terminal equipment.
  • the terminal equipment may also be referred to as User Equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, and remote station. Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • the terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or in the future Terminal equipment in the evolved Public Land Mobile Network (PLMN) network.
  • STAION, ST station
  • WLAN Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites).
  • land including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites).
  • First class can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, and wireless terminal equipment in smart grid , Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home, etc.
  • Mobile Phone Mobile Phone
  • a tablet computer Pad
  • a computer with wireless transceiver function a virtual reality (VR) terminal device
  • an augmented reality (Augmented Reality, AR) terminal Equipment Wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, and wireless terminal equipment in smart grid , Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home, etc.
  • AR Augmented Reality
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the network device may be a device used to communicate with mobile devices, the network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , It can also be a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or vehicle equipment, wearable devices, and NR networks Network equipment (gNB) or network equipment in the future evolution of the PLMN network or network equipment in the NTN network.
  • AP access point
  • BTS Base Transceiver Station
  • NodeB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • gNB Network Equipment
  • the network device may have mobile characteristics, for example, the network device may be a mobile device.
  • the network equipment can be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, or a high elliptical orbit (High Elliptical Orbit, HEO). ) Satellite etc.
  • the network device may also be a base station installed in a location such as land or water.
  • the network equipment may provide services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network equipment ( For example, the cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, and Pico cell. Pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 having a communication function and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B relation.
  • correlate can mean that there is a direct or indirect correspondence between the two, or an association between the two, or indicating and being instructed, configuring and being Configuration and other relationships.
  • Unlicensed spectrum is a spectrum that can be used for radio equipment communications divided by countries and regions. This spectrum is usually considered to be a shared spectrum, that is, communication devices in different communication systems as long as they meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for a proprietary spectrum authorization from the government.
  • a communication device follows the principle of "Listen Before Talk (LBT)", that is, the communication device needs to perform channel listening before sending signals on channels of unlicensed spectrum. Only when the channel listening result is When the channel is idle, the communication device can send signals; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send signals.
  • LBT Listen Before Talk
  • the time that the communication device uses the channel of the unlicensed spectrum for signal transmission cannot exceed the maximum channel occupation time (Maximum Channel Occupancy Time, MCOT).
  • This application can be applied to unlicensed spectrum or licensed spectrum.
  • the NR system When the NR system is applied to the unlicensed frequency band, it 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 Physical Downlink Shared Channel (PDSCH) on the unlicensed carrier, the terminal device needs to send the hybrid automatic repeat request response (Hybrid Automatic Repeat) corresponding to the PDSCH on the unlicensed carrier. request Acknowledgement, HARQ-ACK) feedback.
  • the HARQ-ACK feedback information includes ACK information or NACK information, and the HARQ-ACK information may be used to indicate a decoding result of the PDSCH.
  • the downlink control information DCI for scheduling PDSCH transmission may include HARQ timing indication information (for example, PDSCH-to-HARQ_feedback timing indicator).
  • the hybrid automatic repeat request (Hybrid Automatic Repeat request, HARQ) timing indication information can not only be used to determine the time domain position of the HARQ-ACK feedback resource (such as PUCCH resource) that transmits the HARQ-ACK corresponding to the PDSCH, and may also be used to indicate The HARQ-ACK information corresponding to the PDSCH is not fed back first.
  • the pre-configured HARQ timing set includes a non-numerical (NN) K1 (also referred to as invalid K1 or K1 as an invalid value) indicating an invalid resource indication.
  • the value of K1 is negative.
  • the base station can group scheduled PDSCHs and indicate the grouping information of PDSCHs through display signaling, so that the terminal device can respond according to different groups after receiving the PDSCH HARQ-ACK feedback.
  • the DCI that the base station schedules the terminal equipment to receive the PDSCH for example, the DCI format 1_1 includes PDSCH group index (group index) indication information and new feedback indicator (New feedback indicator, NFI) indication information. In this mode, there can be at most 2 groups.
  • the base station triggers the terminal device to perform HARQ-ACK feedback, it can trigger the feedback of one group or the feedback of two groups at the same time.
  • the DCI information may include an information field (Number of requested PDSCH group(s)) of the number of feedback request groups. If the terminal device receives the DCI information sent by the network device, and the information field of the number of feedback request groups in the DCI information is a preset value, for example, set to 1, then the terminal device needs to perform two groups of HARQ-ACK feedback.
  • an information field Number of requested PDSCH group(s)
  • the network device can configure one-shot HARQ-ACK feedback for the terminal device, and trigger the terminal device to perform one-shot HARQ through DCI such as DCI format 1_1 -ACK feedback.
  • One-shot HARQ-ACK feedback includes HARQ-ACK information feedback corresponding to all HARQ processes on all configured carriers in a Physical Uplink Control Channel (PUCCH) group.
  • PUCCH Physical Uplink Control Channel
  • DCI for example, DCI format 1_1 may include a one-shot HARQ-ACK feedback request information domain (one-shot HARQ-ACK request).
  • the terminal device receives the DCI information sent by the network device, and the one-shot HARQ-ACK feedback request information field in the DCI information is a preset value, for example, set to 1, then the terminal device needs to perform one-shot HARQ-ACK feedback.
  • the DCI may be downlink grant information, and the DCI may schedule physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) transmission, or may not schedule PDSCH transmission.
  • PDSCH Physical Downlink Shared Channel
  • the carrier and the cell can be the same concept, or the carrier can also be replaced with the cell.
  • a cell is configured with code block group (Code block group, CBG) transmission (for example, the terminal device is provided with signaling of the maximum code block group (maxCodeBlockGroupsPerTransportBlock) information included in each transmission block) and/or according to CBG feedback, in In the enhanced dynamic codebook feedback mode, the terminal device needs to perform CBG-based feedback for PDSCH reception scheduled using the DCI format 1_1.
  • code block group Code block group, CBG
  • CBG code block group
  • the above codebook approach can flexibly feed back the HARQ-ACK information corresponding to the scheduled PDSCH on the unlicensed frequency band.
  • the DCI format is introduced to indicate the dormancy or non-dormancy (Scell dormancy/non-dormancy, or called dormancy or de-dormancy) behavior of the secondary cell.
  • the existing part of the information field in the DCI format 1_1 can be used to indicate the dormancy or non-sleep of the secondary cell, where the existing part of the information field may include the first code At least one of Modulation and Coding Scheme (MCS) of the word, NDI of the first codeword, Redundancy Version (RV) of the first codeword, HARQ process number, antenna port field, etc.
  • MCS Modulation and Coding Scheme
  • RV Redundancy Version
  • antenna port field etc.
  • the DCI format 1_1 is not used for scheduling PDSCH reception, it may include the frequency domain resource assignment (FDRA) in the DCI format 1_1 indicating all 0s or all 1s.
  • FDRA frequency domain resource assignment
  • the terminal device is configured to monitor DCI format 1_1, and
  • the terminal device receives the DCI format 1_1 using the Cell Radio Network Temporary Identity (C-RNTI) or MCS-C-RNTI scrambling code, and
  • the DCI format 1_1 does not include the one-shot HARQ-ACK feedback request information field or the one-shot HARQ-ACK feedback request information field included in the DCI format 1_1 does not trigger the one-shot HARQ-ACK feedback, for example, the feedback request information
  • the domain is set to "0"
  • the bits of all FDRA fields included in the DCI format 1_1 are set to 0, or,
  • the bits of all FDRA fields included in the DCI format 1_1 are set to 1, or,
  • the bits of all FDRA fields included in the DCI format 1_1 are set to 0 or 1,
  • the terminal device considers that the bits in the partial information field in the DCI format 1_1 are used to indicate the dormancy or non-sleep of the secondary cell, and the DCI format 1_1 is not used to schedule PDSCH reception or not to indicate semi-persistent scheduling physical downlink shared channel (Semi- Persistent Scheduling Physical Downlink Shared Channel, SPS PDSCH) release.
  • SPS PDSCH Semi-persistent scheduling physical downlink shared channel
  • the terminal device needs to include the Acknowledgement (ACK) information corresponding to the DCI format 1_1 in the type-2 codebook, and the ACK information may be used to indicate that the terminal device correctly receives the DCI format 1_1.
  • ACK Acknowledgement
  • HARQ-ACK codebook The entire HARQ-ACK information fed back by the terminal device on a HARQ-ACK feedback resource (Physical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH) resources) can be called HARQ -ACK codebook.
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the terminal equipment that needs to perform HARQ-ACK feedback can include the following types of downlink data:
  • PDSCH data transmission scheduled by PDCCH includes ordinary PDSCH transmission and PDSCH transmission for downlink (Downlink, DL) semi-persistent scheduling (Semi-Persistent Scheduling, SPS) activation;
  • Downlink Downlink
  • SPS semi-persistent scheduling
  • the HARQ-ACK information that should be fed back on the PUCCH resource in the time slot the terminal equipment will be based on the count Downlink Assignment Index (C-DAI) in the DCI and/or the Total Downlink Assignment Index (T -DAI) value to generate a dynamic codebook, where the dynamic codebook may include ACK information corresponding to PDCCH transmission used for the dormant or non-dormant indication of the secondary cell.
  • C-DAI Downlink Assignment Index
  • T -DAI Total Downlink Assignment Index
  • enhanced dynamic codebook eType-2HARQ-ACK codebook
  • this application proposes a HARQ-ACK codebook feedback solution.
  • the terminal device can feed back the enhanced dynamic codebook at the same time.
  • the feedback information corresponding to the DCI format indicating the dormant or non-dormant behavior of the secondary cell may also not be fed back to the feedback information corresponding to the DCI format indicating the dormant or non-dormant behavior of the secondary cell, which can reduce the complexity of the terminal device and thereby optimize Communication on shared spectrum.
  • FIG. 2 is a schematic flowchart of a HARQ-ACK codebook feedback method 200 according to an embodiment of the present application. As shown in FIG. 2, the method 200 may include at least part of the following content:
  • the network device sends a first DCI format to the terminal device on the first cell, where the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format includes the first DCI format.
  • the terminal device receives the first DCI format on the first cell.
  • the terminal device generates a first HARQ-ACK codebook according to at least one of the first group identifier, the first NFI information, and the first DAI information, where the first HARQ-ACK codebook includes a first bit sequence , The first bit sequence includes ACK information corresponding to the first DCI format;
  • the terminal device sends the first HARQ-ACK codebook to the network device.
  • the network device receives the first HARQ-ACK codebook sent by the terminal device.
  • the first DCI format includes DCI format 1_1.
  • the first DCI format may be DCI format 1_1.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • the terminal device receiving a certain DCI format can be understood as: the terminal device receives the DCI information of the DCI format.
  • the terminal device receiving the DCI format 1_1 can be understood as: the terminal device receives the DCI information of the DCI format 1_1.
  • the DCI format may include, for example, DCI format 1_1, DCI format 1_2, DCI format 1_0, and so on.
  • the first DCI format does not schedule physical channel transmission, including: the first DCI format does not schedule PDSCH reception.
  • the first cell includes a primary cell (PCell, Primary cell).
  • PCell Primary cell
  • the first cell includes a primary and secondary cell (PSCell, primary and secondary cell).
  • PSCell primary and secondary cell
  • a cell may also be referred to as a carrier.
  • the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback.
  • the first HARQ-ACK codebook may also include an enhanced dynamic HARQ-ACK codebook.
  • enhanced dynamic HARQ-ACK codebook feedback may also be referred to as enhanced Type-2 (eType2) HARQ-ACK codebook feedback.
  • the number of HARQ processes included in a cell may be configured by the network equipment, or, if the network equipment is not configured, the number of HARQ processes included in a cell may be a default value, for example, the default value is 8.
  • the terminal device if the terminal device is configured with eType-2HARQ-ACK codebook feedback, if the terminal device receives the first PDCCH for the dormant or non-dormant behavior indication of the secondary cell, the first PDCCH corresponds to the ACK information, for example The first bit sequence.
  • the first PDCCH includes the first DCI format (DCI format 1_1), or the first DCI format is transmitted through the first PDCCH, and the bits in the part of the information field in the DCI in the first PDCCH are used to indicate that the secondary cell is dormant Or not dormant, and the first PDCCH or the DCI format 1_1 is not used to schedule PDSCH reception or is not used to indicate SPS PDSCH release.
  • DCI format 1_1 the first DCI format
  • the first HARQ-ACK codebook includes the codebook to be transmitted on the first time unit.
  • the HARQ timing indication information included in the first PDCCH indicates that the feedback time unit corresponding to the first PDCCH includes the first time unit.
  • the first PDCCH does not include HARQ timing indication information, and the high-layer configuration parameter indicates that the feedback time unit corresponding to the first PDCCH includes the first time unit.
  • the position of the first bit sequence in the first HARQ-ACK codebook is determined according to the first DAI information.
  • the first HARQ-ACK codebook is generated by the terminal device according to the first group identifier and/or the first NFI information, and the first HARQ-ACK codebook corresponds to the first group Identification and/or the first NFI information.
  • the first HARQ-ACK codebook may be considered as enhanced dynamic HARQ-ACK Codebook (eType-2 codebook).
  • the first bit sequence may be included in the enhanced dynamic HARQ-ACK codebook.
  • Example 1 the C-DAI in the first DCI format is counted in a group, where the group is determined according to the first group identifier included in the first DCI format.
  • the first HARQ-ACK codebook includes the codebook to be transmitted on the first time unit.
  • the first HARQ-ACK codebook is a codebook to be transmitted on the first time unit.
  • the first time unit is determined according to HARQ timing indication information included in a second DCI format.
  • the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.
  • the included HARQ timing indication information indicates an invalid value; or,
  • the first time unit is determined according to HARQ timing indication information included in the first DCI format.
  • the HARQ timing indication information included in the first DCI format indicates a valid value; or, the terminal device does not expect the HARQ timing indication information included in the first DCI format to indicate an invalid value.
  • Example 1 when the HARQ-ACK codebook to be fed back by the terminal device in the first time unit is changed from an enhanced dynamic HARQ-ACK codebook to a single HARQ-ACK codebook, the terminal device is in the first time unit.
  • the first bit sequence is not fed back in a time unit, in other words, the single HARQ-ACK codebook fed back by the terminal device on the first time unit does not include the first bit sequence.
  • Example 1 when the HARQ-ACK codebook to be fed back by the terminal device in the first time unit is changed from an enhanced dynamic HARQ-ACK codebook to a single HARQ-ACK codebook, the terminal device is in the first time unit.
  • the first bit sequence is fed back in a time unit, or the single HARQ-ACK codebook fed back by the terminal device on the first time unit includes the first bit sequence, or the terminal device according to the first DCI format
  • the first HARQ process number feeds back the first bit sequence through a single HARQ-ACK codebook.
  • the first HARQ-ACK codebook is not generated by the terminal device according to the first group identifier and the first NFI information, or,
  • the first HARQ-ACK codebook does not correspond to the first group identifier, and the first HARQ-ACK codebook does not correspond to the first NFI information.
  • the first HARQ-ACK codebook may be considered as a dynamic HARQ-ACK codebook (Type-2 codebook).
  • the first bit sequence is not included in the enhanced dynamic HARQ-ACK codebook, the first bit sequence is included in the dynamic HARQ-ACK codebook, or the first bit sequence is fed back separately.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on a first time unit, and the first time unit is determined according to HARQ timing indication information included in the first DCI format .
  • the first HARQ-ACK codebook is a codebook to be transmitted on the first time unit.
  • the HARQ timing indication information included in the first DCI format indicates a valid value; or, the terminal device does not expect the HARQ timing indication information included in the first DCI format to indicate an invalid value.
  • Example 2 the C-DAI in the first DCI format is not counted in the group, where the group is determined according to the first group identifier included in the first DCI format.
  • Example 2 when the HARQ-ACK codebook to be fed back by the terminal device in the first time unit is changed from a dynamic HARQ-ACK codebook to a single HARQ-ACK codebook, the terminal device The first bit sequence is not fed back on the unit, or in other words, the single HARQ-ACK codebook fed back by the terminal device on the first time unit does not include the first bit sequence.
  • Example 2 when the HARQ-ACK codebook to be fed back by the terminal device in the first time unit is changed from a dynamic HARQ-ACK codebook to a single HARQ-ACK codebook, the terminal device The first bit sequence is fed back on the unit, or the single HARQ-ACK codebook fed back by the terminal device on the first time unit includes the first bit sequence, or the terminal device is based on the first bit sequence in the first DCI format.
  • the HARQ process number feeds back the first bit sequence through a single HARQ-ACK codebook.
  • the first bit sequence includes 1-bit ACK information.
  • the length of the first bit sequence is determined according to the TB feedback length (for example, the TB feedback length can be determined according to the high-level configuration parameter maxNrofCodeWordsScheduledByDCI).
  • the 1-bit ACK information corresponds to the feedback information position of the first codeword. For example, if the TB feedback length is 2, then the first bit in the first bit sequence is the ACK information, and the second bit is the NACK space.
  • the first bit sequence includes 1-bit ACK information.
  • the first bit sequence length is determined according to the TB feedback length and the CBG feedback length.
  • the first bit sequence length is determined according to the TB feedback length.
  • the ACK information corresponding to the first DCI format corresponds to the feedback information position of the first codeword. For example, assuming that the TB feedback length is 2 and the CBG feedback length is 4, the first bit sequence includes 2 bits. In other words, the first bit sequence may include [ACK NACK].
  • the first bit sequence includes G-bit ACK information, where G represents the CBG feedback length corresponding to a TB in the first cell (For example, the CBG feedback length can be determined according to the high-level configuration parameter maxCodeBlockGroupsPerTransportBlock), and the G is a positive integer.
  • the first bit sequence length is determined according to the TB feedback length and the CBG feedback length.
  • the first cell corresponding to a CBG-based feedback mode includes: the first cell is configured with a CBG-based transmission mode; and/or the first cell is configured with a CBG-based feedback Way.
  • the first HARQ-ACK codebook includes the codebook to be transmitted on the first time unit.
  • the terminal device receives a second DCI format sent by the network device, the second DCI format includes one-shot HARQ-ACK (one-shot HARQ-ACK) feedback request information, and the HARQ included in the second DCI format
  • the timing indication information indicates the first time unit; and the terminal device generates a second HARQ-ACK codebook for the first time unit according to the second DCI format.
  • the network device sends a second DCI format to the terminal device, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ timing indication information included in the second DCI format indicates the The first time unit and the second DCI format are used by the terminal device to generate a second HARQ-ACK codebook for the first time unit.
  • the second HARQ-ACK codebook includes the first bit sequence.
  • the first bit sequence is not included in the second HARQ-ACK codebook.
  • the terminal device may send the second HARQ-ACK codebook through the first time unit.
  • the network device receives the second HARQ-ACK codebook sent by the terminal device through the first time unit.
  • the terminal device is configured with one-shot HARQ-ACK (one-shot HARQ-ACK) feedback.
  • the network device configures a single HARQ-ACK feedback for the terminal device.
  • the single HARQ-ACK feedback may also be referred to as Type-3 (Type-3) codebook feedback.
  • the communication device before transmitting the signal, the communication device needs to perform channel access or channel listening or channel detection. If the spectrum is currently occupied, signal transmission cannot be performed. Therefore, sharing It may not be possible to transmit in the spectrum scene.
  • the above step S240 may include: after the terminal device obtains the channel use right of the first time unit, sending the first HARQ-ACK codebook to the network device; or, the terminal device After the channel access is successful, the first HARQ-ACK codebook is sent to the network device.
  • the terminal device generates the first HARQ-ACK codebook according to at least one of the first group identifier, the first NFI information, and the first DAI information, and the first HARQ-ACK codebook includes the first HARQ-ACK codebook.
  • One bit sequence that is, the terminal device can generate the HARQ-ACK codebook based on the DCI format used to indicate the dormant or non-sleep behavior of the secondary cell, and the HARQ-ACK codebook includes the DCI used to indicate the dormant or non-sleep behavior of the secondary cell Format corresponding feedback information, thereby optimizing communication on the shared spectrum.
  • the terminal device can use the dynamic HARQ-ACK codebook or the enhanced dynamic HARQ-ACK codebook when the enhanced dynamic HARQ-ACK codebook feedback mode is configured.
  • the ACK codebook feedback is used to indicate the feedback information corresponding to the DCI format of the dormant or non-dormant behavior of the secondary cell, so as to optimize the communication on the shared spectrum.
  • FIG. 3 is a schematic flowchart of a HARQ-ACK codebook feedback method 300 according to an embodiment of the present application. As shown in FIG. 3, the method 300 may include at least part of the following content:
  • the network device sends a first DCI format to the terminal device on the first cell, where the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format includes the first DCI format.
  • the terminal device receives the first DCI format on the first cell, and the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback;
  • S330 The terminal device does not feed back ACK information corresponding to the first DCI format according to the first DCI format.
  • S340 The network device does not expect the terminal device to feed back ACK information corresponding to the first DCI format according to the first DCI format.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • the terminal device receiving a certain DCI format can be understood as: the terminal device receives the DCI information of the DCI format.
  • the terminal device receiving the DCI format 1_1 can be understood as: the terminal device receives the DCI information of the DCI format 1_1.
  • the DCI format may include, for example, DCI format 1_1, DCI format 1_2, DCI format 1_0, and so on.
  • a cell may also be referred to as a carrier.
  • the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback.
  • the enhanced dynamic HARQ-ACK codebook feedback may also be referred to as enhanced Type-2 (eType2) HARQ-ACK codebook feedback.
  • the value of some or all of the information bits included in the first DAI information is a preset value.
  • the value of the total DAI included in the first DAI information is 4. Since the terminal device does not need to feed back the first DCI format according to the dynamic codebook, the value of the bit in the first DAI information may be a preset value.
  • the count DAI included in the first DAI information takes a value as a preset value.
  • the count DAI included in the first DAI information takes a value of 1, or the count DAI included in the first DAI information takes a value of 4.
  • the first cell includes a primary cell (PCell, Primary cell).
  • PCell Primary cell
  • the first cell includes a primary and secondary cell (PSCell, primary and secondary cell).
  • PSCell primary and secondary cell
  • the number of HARQ processes included in a cell may be configured by the network equipment, or, if the network equipment is not configured, the number of HARQ processes included in a cell may be a default value, for example, the default value is 8.
  • the terminal device receives a second DCI format sent by the network device, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ included in the second DCI format
  • the timing indication information indicates the first time unit; and the terminal device generates a first HARQ-ACK codebook for the first time unit according to the second DCI format, and the first HARQ-ACK codebook includes the corresponding first DCI format ACK information.
  • the network device sends a second DCI format to the terminal device, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ timing indication information included in the second DCI format indicates the first A time unit and the second DCI format are used by the terminal device to generate a first HARQ-ACK codebook for the first time unit, and the first HARQ-ACK codebook includes ACK information corresponding to the first DCI format.
  • the HARQ timing indication information included in the first DCI format indicates the first time unit
  • the HARQ timing indication information included in the first DCI format indicates an invalid value
  • the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.
  • the terminal device receives a second DCI format sent by the network device, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ included in the second DCI format
  • the timing indication information indicates the first time unit; and the terminal device generates a first HARQ-ACK codebook for the first time unit according to the second DCI format, wherein the first HARQ-ACK codebook does not include the first HARQ-ACK codebook ACK information corresponding to the DCI format.
  • the network device sends a second DCI format to the terminal device, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ timing indication information included in the second DCI format indicates the first A time unit and the second DCI format are used by the terminal device to generate a first HARQ-ACK codebook for the first time unit, wherein the first HARQ-ACK codebook does not include the corresponding data for the first DCI format ACK information.
  • the terminal device is configured with one-shot HARQ-ACK (one-shot HARQ-ACK) feedback.
  • the network device configures a single HARQ-ACK feedback for the terminal device.
  • the single HARQ-ACK feedback may also be referred to as Type-3 (Type-3) codebook feedback.
  • the terminal device may not feed back the behavior indicating the dormant or non-dormant behavior of the secondary cell when feeding back the enhanced dynamic codebook.
  • the feedback information corresponding to the DCI format can reduce the complexity of terminal equipment, thereby optimizing communication on the shared spectrum.
  • the terminal device is configured with at least one of Type-2HARQ-ACK codebook feedback, eType-2HARQ-ACK codebook feedback, and Type-3HARQ-ACK codebook feedback.
  • the terminal device receives the first PDCCH used to indicate the dormant or non-dormant behavior of the secondary cell, the first PDCCH corresponds to ACK information such as a first bit sequence.
  • the first PDCCH includes the first DCI format (for example, DCI format 1_1), or the first DCI format is transmitted through the first PDCCH, and the bits in the part of the information field in the DCI in the first PDCCH are used to indicate the secondary cell Sleeping or non-sleeping, and the first PDCCH or the DCI format 1_1 is not used to schedule PDSCH reception or is not used to indicate SPS PDSCH release.
  • DCI format 1_1 for example, DCI format 1_1
  • the bits in the part of the information field in the DCI in the first PDCCH are used to indicate the secondary cell Sleeping or non-sleeping
  • the first PDCCH or the DCI format 1_1 is not used to schedule PDSCH reception or is not used to indicate SPS PDSCH release.
  • the first PDCCH includes HARQ timing indication information.
  • the HARQ timing indication information included in the first PDCCH that the terminal device does not expect to receive indicates an invalid value, or the HARQ timing indication information included in the first PDCCH that the terminal device expects to receive indicates a valid value.
  • the HARQ timing indication information included in the first PDCCH indicates the first time unit, then the terminal device transmits the first bit sequence on the first time unit.
  • the HARQ timing indication information included in the first PDCCH indicates an invalid value.
  • the HARQ timing indication information indicates -1.
  • the terminal device receives the second PDCCH and the HARQ timing indication information included in the second PDCCH indicates a valid value, for example, indicating the first time unit, the terminal device transmits the first bit sequence on the first time unit. Otherwise, the terminal device does not transmit the first bit sequence.
  • the second PDCCH includes at least one of the following situations:
  • Case 1 If the terminal device is not configured with enhanced dynamic HARQ-ACK codebook feedback, the second PDCCH is the detected PDCCH at any PDCCH monitoring opportunity after the first PDCCH, or the second PDCCH is detected after the first PDCCH is detected
  • the first HARQ timing indication information that arrives indicates a PDCCH with a valid value.
  • the second PDCCH is the PDCCH detected on any PDCCH monitoring opportunity after the first PDCCH, and the HARQ-ACK information indicated by the second PDCCH is reported
  • the corresponding group identifier includes the group identifier in the first PDCCH.
  • the second PDCCH indicates to report the HARQ-ACK codebook corresponding to group 0, and the group identifier in the first PDCCH is group 0.
  • Case 3 If the terminal device is configured with a single HARQ-ACK (Type-3) codebook feedback, the second PDCCH is detected on any PDCCH monitoring opportunity after the first PDCCH, and the second PDCCH triggers a single ( one-shot) HARQ-ACK feedback.
  • Type-3 codebook feedback If the terminal device is configured with a single HARQ-ACK (Type-3) codebook feedback, the second PDCCH is detected on any PDCCH monitoring opportunity after the first PDCCH, and the second PDCCH triggers a single ( one-shot) HARQ-ACK feedback.
  • the HARQ-ACK information feedback on the carrier is based on the TB feedback, where the maximum number of TBs included in a HARQ process is 1.
  • a HARQ process corresponds to 1-bit HARQ-ACK information, and the terminal device is configured with eType-2 codebook feedback.
  • the first PDCCH does not schedule PDSCH transmission.
  • the first PDCCH is used to indicate the dormant or non-dormant behavior of the secondary cell.
  • the first HARQ-ACK codebook when the terminal device generates the first HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the first HARQ-ACK codebook may be as shown in Table 1.
  • the HARQ-ACK information feedback on the carrier is based on the TB feedback, where the maximum number of TBs included in a HARQ process is 1.
  • a HARQ process corresponds to 1-bit HARQ-ACK information, and the terminal device is configured with eType-2 codebook feedback.
  • the first HARQ-ACK codebook when the terminal device generates the first HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the first HARQ-ACK codebook may be as shown in Table 2.
  • the terminal device if the terminal device expects to both feed back the first bit sequence on slot n (or PUCCH 1) and also expects to feedback according to the eType-2 codebook, the terminal device does not feed back the first bit on slot n (or PUCCH 1) sequence.
  • the terminal device feeds back the first bit sequence on slot k.
  • the HARQ-ACK information feedback on the carrier is based on the TB feedback, where the maximum number of TBs included in a HARQ process is 1.
  • a HARQ process corresponds to 1-bit HARQ-ACK information, and the terminal device is configured with eType-2 codebook feedback.
  • the first bit sequence corresponding to the first PDCCH includes ACK information;
  • the first HARQ-ACK codebook when the terminal device generates the first HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the first HARQ-ACK codebook may be as shown in Table 1 above.
  • the terminal device is configured with two carriers, corresponding to the primary cell and the secondary cell, respectively.
  • the HARQ-ACK information feedback on the carrier corresponding to the primary cell is based on the CBG feedback, and the CBG feedback length is 4, where the maximum number of TBs included in one HARQ process is 1, or one HARQ process corresponds to 4-bit HARQ-ACK information.
  • the HARQ-ACK information feedback on the carrier corresponding to the secondary cell is based on the TB feedback, where the maximum number of TBs included in one HARQ process is 1, or one HARQ process corresponds to 1-bit HARQ-ACK information.
  • the HARQ timing indication information (K1 2) included in DCI 3 and DCI 4
  • the indicated feedback time unit is also time slot n
  • the first HARQ-ACK codebook when the terminal device generates the first HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the first HARQ-ACK codebook may be as shown in Table 3 or Table 4 or Table 5.
  • FIG. 8 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the communication unit 410 is configured to receive the first downlink control information DCI format on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format Includes the first group identifier, the first new feedback indication NFI information, and the first downlink allocation index DAI information;
  • the processing unit 420 is configured to generate a first HARQ-ACK codebook according to at least one of the first group identifier, the first NFI information, and the first DAI information, where the first HARQ-ACK codebook includes a first bit Sequence, the first bit sequence includes acknowledgement ACK information corresponding to the first DCI format.
  • the position of the first bit sequence in the first HARQ-ACK codebook is determined according to the first DAI information.
  • the first HARQ-ACK codebook is generated by the terminal device according to the first group identifier and/or the first NFI information, and the first HARQ-ACK codebook corresponds to the first group identifier and/or The first NFI information.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on the first time unit, where:
  • the first time unit is determined according to the HARQ timing indication information included in the second DCI format.
  • the second DCI format is the detected DCI format on the physical downlink control channel PDCCH monitoring opportunity after the first DCI format.
  • a hybrid automatic repeat request HARQ timing indication information included in the DCI format indicates an invalid value; or,
  • the first time unit is determined according to HARQ timing indication information included in the first DCI format.
  • the first HARQ-ACK codebook is not generated by the terminal device according to the first group identifier and the first NFI information, or,
  • the first HARQ-ACK codebook does not correspond to the first group identifier, and the first HARQ-ACK codebook does not correspond to the first NFI information.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on a first time unit, and the first time unit is determined according to HARQ timing indication information included in the first DCI format.
  • the HARQ timing indication information included in the first DCI format indicates a valid value; or, the terminal device does not expect the HARQ timing indication information included in the first DCI format to indicate an invalid value.
  • the first bit sequence includes 1-bit ACK information.
  • the first bit sequence includes 1-bit ACK information.
  • the first bit sequence includes G bits of ACK information, where the G represents the CBG feedback length corresponding to a TB in the first cell, and the G is a positive integer .
  • the first cell corresponding to a CBG-based feedback mode includes: the first cell is configured with a CBG-based transmission mode; and/or the first cell is configured with a CBG-based feedback mode.
  • the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on the first time unit
  • the communication unit 410 is further configured to receive a second DCI format, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ timing indication information included in the second DCI format indicates the first time unit;
  • the processing unit 420 is further configured to generate a second HARQ-ACK codebook for the first time unit according to the second DCI format.
  • the second HARQ-ACK codebook includes the first bit sequence.
  • the first bit sequence is not included in the second HARQ-ACK codebook.
  • the communication unit 410 is further configured to send the second HARQ-ACK codebook through the first time unit.
  • the terminal device is configured for a single HARQ-ACK feedback.
  • the first DCI format includes DCI format 1_1.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • the aforementioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to implement the method shown in FIG. 2 respectively.
  • the corresponding process of the terminal equipment in 200 will not be repeated here.
  • FIG. 9 shows a schematic block diagram of a network device 500 according to an embodiment of the present application.
  • the network device 500 includes:
  • the communication unit 510 is configured to send the first downlink control information DCI format to the terminal device on the first cell, the first DCI format is used to indicate the sleep state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format does not schedule physical channel transmission.
  • a DCI format includes the first group identifier, the first new feedback indication NFI information, and the first downlink allocation index DAI information;
  • the communication unit 510 is further configured to receive a first HARQ-ACK codebook sent by the terminal device, where the first HARQ-ACK codebook is the terminal device according to the first group identifier, the first NFI information, and the Generated by at least one item of the first DAI information, the first HARQ-ACK codebook includes a first bit sequence, and the first bit sequence includes acknowledgement ACK information corresponding to the first DCI format.
  • the position of the first bit sequence in the first HARQ-ACK codebook is determined according to the first DAI information.
  • the first HARQ-ACK codebook is generated by the terminal device according to the first group identifier and/or the first NFI information, and the first HARQ-ACK codebook corresponds to the first group identifier and/or The first NFI information.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on the first time unit, where:
  • the first time unit is determined according to the HARQ timing indication information included in the second DCI format.
  • the second DCI format is the detected DCI format on the physical downlink control channel PDCCH monitoring opportunity after the first DCI format.
  • a hybrid automatic repeat request HARQ timing indication information included in the DCI format indicates an invalid value; or,
  • the first time unit is determined according to HARQ timing indication information included in the first DCI format.
  • the first HARQ-ACK codebook is not generated by the terminal device according to the first group identifier and the first NFI information, or,
  • the first HARQ-ACK codebook does not correspond to the first group identifier, and the first HARQ-ACK codebook does not correspond to the first NFI information.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on a first time unit, and the first time unit is determined according to HARQ timing indication information included in the first DCI format.
  • the HARQ timing indication information included in the first DCI format indicates a valid value; or, the terminal device does not expect the HARQ timing indication information included in the first DCI format to indicate an invalid value.
  • the first bit sequence includes 1-bit ACK information.
  • the first bit sequence includes 1-bit ACK information.
  • the first bit sequence includes G bits of ACK information, where the G represents the CBG feedback length corresponding to a TB in the first cell, and the G is a positive integer .
  • the first cell corresponding to a CBG-based feedback mode includes: the first cell is configured with a CBG-based transmission mode; and/or the first cell is configured with a CBG-based feedback mode.
  • the network device configures enhanced dynamic HARQ-ACK codebook feedback for the terminal device.
  • the first HARQ-ACK codebook includes a codebook to be transmitted on a first time unit
  • the communication unit is further configured to send a second DCI format to the terminal device
  • the second DCI format includes a single HARQ -ACK feedback request information
  • the HARQ timing indication information included in the second DCI format indicates the first time unit
  • the second DCI format is used by the terminal device to generate a second HARQ-ACK codebook for the first time unit .
  • the second HARQ-ACK codebook includes the first bit sequence.
  • the first bit sequence is not included in the second HARQ-ACK codebook.
  • the communication unit 510 is further configured to receive the second HARQ-ACK codebook sent by the terminal device through the first time unit.
  • the network device configures a single HARQ-ACK feedback for the terminal device.
  • the first DCI format includes DCI format 1_1.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • the aforementioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 500 are to implement the method shown in FIG. 2 respectively.
  • the corresponding process of the network equipment in 200 will not be repeated here.
  • FIG. 10 shows a schematic block diagram of a terminal device 600 according to an embodiment of the present application.
  • the terminal device 600 includes:
  • the communication unit 610 is configured to receive the first downlink control information DCI format on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format Includes the first group identifier, the first new feedback indication NFI information, and the first downlink allocation index DAI information, and the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback;
  • the processing unit 620 is configured to not feed back the acknowledgement ACK information corresponding to the first DCI format according to the first DCI format.
  • the value of the count DAI included in the first DAI information is 1.
  • the communication unit 610 is further configured to receive a second DCI format, the second DCI format includes single HARQ-ACK feedback request information, and the hybrid automatic repeat request HARQ timing indication information included in the second DCI format Indicate the first time unit;
  • the processing unit 620 is further configured to generate a first HARQ-ACK codebook for the first time unit according to the second DCI format, and the first HARQ-ACK codebook includes ACK information corresponding to the first DCI format, wherein,
  • the HARQ timing indication information included in the first DCI format indicates the first time unit; or,
  • the HARQ timing indication information included in the first DCI format indicates an invalid value
  • the second DCI format is a DCI format detected on a physical downlink control channel PDCCH monitoring opportunity after the first DCI format.
  • the communication unit 610 is further configured to receive a second DCI format, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ timing indication information included in the second DCI format indicates the first time unit ;
  • the processing unit 620 is further configured to generate a first HARQ-ACK codebook for the first time unit according to the second DCI format, wherein the first HARQ-ACK codebook does not include ACK information corresponding to the first DCI format .
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to implement the method shown in FIG. 3, respectively.
  • the corresponding process of the terminal equipment in 300 will not be repeated here.
  • FIG. 11 shows a schematic block diagram of a network device 700 according to an embodiment of the present application.
  • the network device 700 includes:
  • the communication unit 710 is configured to send the first downlink control information DCI format to the terminal device on the first cell, the first DCI format is used to indicate the dormant state of the secondary cell, the first DCI format does not schedule physical channel transmission, and the first DCI format does not schedule physical channel transmission.
  • a DCI format includes the first group identifier, the first new feedback indication NFI information, and the first downlink allocation index DAI information, and the terminal device is configured with enhanced dynamic HARQ-ACK codebook feedback;
  • the processing unit 720 is configured to not expect the terminal device to feed back the acknowledgement ACK information corresponding to the first DCI format according to the first DCI format.
  • the value of the count DAI included in the first DAI information is 1.
  • the communication unit 710 is further configured to send a second DCI format to the terminal device, the second DCI format includes single HARQ-ACK feedback request information, and the hybrid automatic repeat request included in the second DCI format
  • the HARQ timing indication information indicates the first time unit
  • the second DCI format is used by the terminal device to generate a first HARQ-ACK codebook for the first time unit
  • the first HARQ-ACK codebook includes the first DCI ACK information corresponding to the format
  • the HARQ timing indication information included in the first DCI format indicates the first time unit; or,
  • the HARQ timing indication information included in the first DCI format indicates an invalid value
  • the second DCI format is a DCI format detected on a physical downlink control channel PDCCH monitoring opportunity after the first DCI format.
  • the communication unit 710 is further configured to send a second DCI format to the terminal device, the second DCI format includes single HARQ-ACK feedback request information, and the HARQ timing indication information included in the second DCI format indicates The first time unit and the second DCI format are used by the terminal device to generate a first HARQ-ACK codebook for the first time unit, wherein the first HARQ-ACK codebook does not include the corresponding first DCI format ACK information.
  • the dormant state of the secondary cell includes a dormant or non-sleep behavior of the secondary cell.
  • the aforementioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 700 may correspond to the network device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 700 are to implement the method shown in FIG. 3, respectively.
  • the corresponding process of the network equipment in 300 will not be repeated here.
  • FIG. 12 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application.
  • the communication device 800 shown in FIG. 12 includes a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 800 may further include a memory 820.
  • the processor 810 may call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.
  • the memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.
  • the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 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 830 may include a transmitter and a receiver.
  • the transceiver 830 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 800 may specifically be a network device in an embodiment of the present application, and the communication device 800 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here. .
  • the communication device 800 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 800 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the application.
  • I won’t repeat it here.
  • Fig. 13 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the apparatus 900 shown in FIG. 13 includes a processor 910, and the processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the apparatus 900 may further include a memory 920.
  • the processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.
  • the memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.
  • the device 900 may further include an input interface 930.
  • the processor 910 can control the input interface 930 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the device 900 may further include an output interface 940.
  • the processor 910 can control the output interface 940 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • details are not described herein again.
  • the device can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 14 is a schematic block diagram of a communication system 1000 according to an embodiment of the present application. As shown in FIG. 14, the communication system 1000 includes a terminal device 1010 and a network device 1020.
  • the terminal device 1010 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 1020 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (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 Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (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 a 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
  • Synchronous Link Dynamic Random Access Memory Synchronous Link 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), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • the embodiments of the present application also provide 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 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 mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I won’t repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can 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 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 mobile terminal/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 mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.
  • 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 is run 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 mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Des modes de réalisation de la présente demande concernent un procédé de rétroaction de livre de codes HARQ-ACK, un dispositif terminal, et un dispositif de réseau, permettant d'optimiser la communication sur un spectre partagé. Le procédé de rétroaction de livre de codes HARQ-ACK fait appel aux étapes suivantes : le dispositif terminal reçoit un premier format de DCI sur une première cellule, le premier format de DCI étant utilisé pour indiquer un état de dormance d'une cellule secondaire, le premier format de DCI ne planifiant pas de transmission de canal physique, et le premier format de DCI comprenant un premier ensemble d'identifiants, des premières informations NFI et des premières informations DAI ; le dispositif terminal génère un premier livre de codes HARQ-ACK selon au moins l'un du premier ensemble d'identifiants, des premières informations NFI et des premières informations DAI, le premier livre de codes HARQ-ACK comprenant une première séquence de bits, et la première séquence de bits comprenant des informations ACK correspondant au premier format de DCI.
PCT/CN2020/089888 2020-05-12 2020-05-12 Procédé de rétroaction de livre de codes harq-ack, dispositif terminal, et dispositif de réseau WO2021226850A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080099111.6A CN115336215A (zh) 2020-05-12 2020-05-12 Harq-ack码本的反馈方法、终端设备和网络设备
PCT/CN2020/089888 WO2021226850A1 (fr) 2020-05-12 2020-05-12 Procédé de rétroaction de livre de codes harq-ack, dispositif terminal, et dispositif de réseau

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023133730A1 (fr) * 2022-01-12 2023-07-20 Apple Inc. Technologies de gestion de temporisateurs de réception discontinue

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Publication number Priority date Publication date Assignee Title
US20190124558A1 (en) * 2017-10-25 2019-04-25 Qualcomm Incorporated Secondary cell activation and deactivation enhancements in new radio
WO2019084570A1 (fr) * 2017-10-26 2019-05-02 Hyoungsuk Jeon Temporisateur d'inactivité de partie de bande passante

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190124558A1 (en) * 2017-10-25 2019-04-25 Qualcomm Incorporated Secondary cell activation and deactivation enhancements in new radio
WO2019084570A1 (fr) * 2017-10-26 2019-05-02 Hyoungsuk Jeon Temporisateur d'inactivité de partie de bande passante

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023133730A1 (fr) * 2022-01-12 2023-07-20 Apple Inc. Technologies de gestion de temporisateurs de réception discontinue

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