WO2023010459A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2023010459A1
WO2023010459A1 PCT/CN2021/111020 CN2021111020W WO2023010459A1 WO 2023010459 A1 WO2023010459 A1 WO 2023010459A1 CN 2021111020 W CN2021111020 W CN 2021111020W WO 2023010459 A1 WO2023010459 A1 WO 2023010459A1
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WIPO (PCT)
Prior art keywords
offset value
harq feedback
feedback timing
time unit
target offset
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PCT/CN2021/111020
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English (en)
Chinese (zh)
Inventor
吴作敏
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Oppo广东移动通信有限公司
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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 PCT/CN2021/111020 priority Critical patent/WO2023010459A1/fr
Priority to CN202180098265.8A priority patent/CN117461276A/zh
Publication of WO2023010459A1 publication Critical patent/WO2023010459A1/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 present application relates to the field of communication technologies, and more specifically, to a wireless communication method, terminal equipment, and network equipment.
  • NTN non-terrestrial network
  • K offset an offset value
  • the terminal equipment sometimes receives multiple offset values. If the terminal device receives multiple offset values, there is currently no suitable solution for how the terminal device should determine the feedback time unit during the hybrid automatic repeat reQuest (HARQ) feedback process. If the way of determining the feedback time unit is inconsistent between the terminal device and the network device, it will lead to confusion in the communication process.
  • HARQ hybrid automatic repeat reQuest
  • the present application provides a wireless communication method, a network device and a terminal device, so as to avoid confusion in the communication process between the terminal device and the network device.
  • a wireless communication method including: a terminal device receives a first DCI corresponding to a first downlink control information (downlink control information, DCI) format, and the first DCI corresponds to a first HARQ feedback timing; The terminal device determines a first feedback time unit corresponding to the first DCI according to the first HARQ feedback timing and a first target offset value, where the first HARQ feedback timing corresponds to a first HARQ feedback timing set, The first HARQ feedback timing set is a HARQ feedback timing set corresponding to the first DCI format, and the first target offset value is determined according to the first offset value or the second offset value.
  • DCI downlink control information
  • a wireless communication method including: a network device sends a first DCI corresponding to a first DCI format, and the first DCI corresponds to a first HARQ feedback timing; The timing and the first target offset value determine the first feedback time unit corresponding to the first DCI, where the first HARQ feedback timing corresponds to a first HARQ feedback timing set, and the first HARQ feedback timing set is the The HARQ feedback timing set corresponding to the first DCI format, the first target offset value is determined according to the first offset value or the second offset value.
  • a terminal device including: a receiving unit, configured to receive a first DCI corresponding to a first DCI format, where the first DCI corresponds to a first HARQ feedback timing; a determining unit, configured to The HARQ feedback timing and the first target offset value determine the first feedback time unit corresponding to the first DCI, where the first HARQ feedback timing corresponds to a first HARQ feedback timing set, and the first HARQ feedback timing set is The HARQ feedback timing set corresponding to the first DCI format, the first target offset value is determined according to the first offset value or the second offset value.
  • a network device including: a sending unit, configured to send a first DCI corresponding to a first DCI format, where the first DCI corresponds to a first HARQ feedback timing; a determining unit, configured to The HARQ feedback timing and the first target offset value determine the first feedback time unit corresponding to the first DCI, where the first HARQ feedback timing corresponds to a first HARQ feedback timing set, and the first HARQ feedback timing set is The HARQ feedback timing set corresponding to the first DCI format, the first target offset value is determined according to the first offset value or the second offset value.
  • a terminal device including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method according to the first aspect.
  • a network device including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method described in the second aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the first aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the second aspect.
  • a ninth aspect provides a chip, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect.
  • a chip including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the second aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the first aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the second aspect.
  • a thirteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the first aspect.
  • a fourteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the second aspect.
  • a fifteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect.
  • a sixteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the second aspect.
  • the embodiment of the present application clarifies that during the HARQ feedback process, when the terminal device receives the DCI scheduled using the first DCI format, it determines the feedback time unit based on the first target offset value, so that the terminal device and the network device can make the feedback The way to determine the time unit is consistent, so as to avoid confusion in the communication process.
  • 1A-1C are exemplary diagrams of a communication system to which the embodiments of the present application can be applied.
  • Fig. 2 is an example diagram of HARQ-ACK codebook feedback in the related art.
  • Fig. 3 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • Fig. 4 is an example diagram of HARQ-ACK codebook feedback provided by the embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of the device provided by the embodiment of the present application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE-A advanced long term evolution
  • new radio new radio, NR
  • evolution system of NR system LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum
  • NR NR-based access to unlicensed spectrum
  • NR-U network unlicensed spectrum
  • UMTS universal mobile telecommunications system
  • UMTS wireless local area network
  • WLAN wireless local area networks
  • WiFi wireless fidelity
  • 5G fifth generation communication
  • 5G fifth generation communication
  • 5G fifth generation communication
  • future communication systems such as the sixth
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (carrier aggregation, CA) scenario, may also be applied to a dual connectivity (dual connectivity, DC) scenario, and may also be applied to an independent (standalone, SA) network deployment scenario.
  • carrier aggregation carrier aggregation
  • DC dual connectivity
  • SA independent network deployment scenario
  • the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to a licensed spectrum, wherein the licensed spectrum can also be Considered a dedicated spectrum.
  • the embodiments of the present application may be applied to an NTN system, and may also be applied to a terrestrial communication network (terrestrial networks, TN) system.
  • the NTN system includes an NR-based NTN system and an IoT-based NTN system.
  • Embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be called user equipment (user equipment, UE), access terminal, user unit, user station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile Terminal, MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment user equipment
  • MS mobile station
  • MS mobile terminal
  • MT mobile Terminal
  • remote station remote terminal, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as NR networks
  • PLMN public land mobile network
  • a terminal device can be a device that provides voice and/or data connectivity to users, and can be used to connect people, things and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like.
  • the terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • UE can be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • a cell phone and an automobile communicate with each other using sidelink signals. Communication between cellular phones and smart home devices without relaying communication signals through base stations.
  • 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 aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone, a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (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, 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.
  • a virtual reality (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, 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.
  • the terminal equipment involved in the embodiments of the present application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • Terminal equipment can also be fixed or mobile.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station.
  • the network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network.
  • radio access network radio access network, RAN node (or device) that connects a terminal device to a wireless network.
  • the base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (access piont, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (remote radio unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc.
  • NodeB Node B
  • evolved base station evolved NodeB, eNB
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.
  • a base station may also refer to a communication module, a modem or a chip configured in the aforementioned equipment or device.
  • the base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network.
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station.
  • a helicopter or drone may be configured to serve as a device in communication with another base station.
  • the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU.
  • a gNB may also include an AAU.
  • Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the scenarios where the network device and the terminal device are located are not limited.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, in water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, a pico cell ( pico cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, a pico cell ( pico cell), femto
  • FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • a communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1A exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within the coverage area.
  • the device is not limited in the embodiment of this application.
  • FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102 .
  • the network formed between the terminal device 1101 and the satellite 1102 may also be referred to as NTN.
  • the satellite 1102 may function as a base station, and the terminal device 1101 and the satellite 1102 may communicate directly. Under the system architecture, the satellite 1102 can be referred to as a network device.
  • the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.
  • FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • it includes a terminal device 1201 , a satellite 1202 and a base station 1203 , wireless communication can be performed between the terminal device 1201 and the satellite 1202 , and communication can be performed between the satellite 1202 and the base station 1203 .
  • the network formed among the terminal equipment 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN.
  • the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202 .
  • the base station 1203 may be called a network device.
  • the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.
  • Fig. 1A-Fig. 1C are only illustrations of the systems to which this application is applicable.
  • the methods shown in the embodiments of this application can also be applied to other systems, for example, 5G communication systems, LTE communication systems, etc. , which is not specifically limited in this embodiment of the present application.
  • the wireless communication system shown in FIG. 1A-FIG. 1C may further include a mobility management entity (mobility management entity, MME), an access and mobility management function (access and mobility management function, AMF) and other network entities, which are not limited in this embodiment of the present application.
  • MME mobility management entity
  • AMF access and mobility management function
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions, and the network equipment 110 and the terminal equipment 120 may be the specific equipment 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 this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is 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 indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • the “configuration” in the embodiment of the present application may include configuring through at least one of system messages, radio resource control (radio resource control, RRC) signaling, and media access control element (MAC CE) .
  • RRC radio resource control
  • MAC CE media access control element
  • predefined or “preset” may be pre-saved in devices (for example, including terminal devices and network devices) with corresponding codes, tables or other methods that can be used to indicate related information implementation, and the present application does not limit the specific implementation manner.
  • the predefined ones may refer to those defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.
  • NTN generally adopts satellite communication to provide communication services to ground users. Compared with terrestrial cellular network communication, satellite communication has many unique advantages.
  • satellite communication is not restricted by user's geography.
  • general ground communication networks cannot cover areas where network equipment cannot be set up, such as oceans, mountains, and deserts.
  • terrestrial communication networks do not cover certain sparsely populated areas.
  • satellite communication since a satellite can cover a large ground area, and the satellite can orbit around the earth, theoretically speaking, every corner of the earth can be covered by a satellite communication network.
  • Satellite communication has great social value. Satellite communication can cover remote mountainous areas, poor and backward countries or regions at a lower cost, so that people in these regions can enjoy advanced voice communication and mobile Internet technologies. From this point of view, satellite communication is conducive to narrowing the digital gap with developed regions and promoting the development of these regions.
  • satellite communication has the advantage of long distance, and the increase of communication distance does not significantly increase the cost of communication.
  • satellite communication has high stability and is not affected by natural disasters.
  • Communication satellites are divided into low earth orbit (LEO) satellites, medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, high elliptical orbit (high elliptical orbit, HEO) satellite, etc.
  • LEO low earth orbit
  • MEO medium earth orbit
  • GEO geostationary earth orbit
  • HEO high elliptical orbit
  • the main researches are LEO satellites and GEO satellites.
  • the height range of LEO satellites is generally between 500km and 1500km.
  • the orbit period of the LEO satellite is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the maximum satellite visibility time of LEO satellites is about 20 minutes. LEO satellites have the advantages of short signal propagation distance, less link loss, and low requirements on the transmission power of user terminal equipment.
  • the orbit height of GEO satellite is 35786km.
  • GEO satellites orbit the Earth every 24 hours.
  • the signal propagation delay of single-hop communication between users is generally about 250ms.
  • satellites In order to ensure satellite coverage and improve the system capacity of the entire satellite communication system, satellites usually use multiple beams to cover the ground area. Therefore, a single satellite can form dozens or even hundreds of beams to cover a ground area. A beam of a satellite can cover a ground area with a diameter of tens to hundreds of kilometers.
  • the NTN system includes the NR-NTN system and the Internet of things (IoT)-NTN system.
  • IoT Internet of things
  • the network device can schedule transmission of a physical downlink shared channel (PDSCH) for the terminal device through DCI (or called downlink authorization DCI).
  • the DCI may include indication information of a physical uplink control channel (physical uplink control channel, PUCCH) resource.
  • PUCCH physical uplink control channel
  • the terminal device can feed back the decoding result of the PDSCH to the network device through the PUCCH resource.
  • the decoding result of the PDSCH may be, for example, an acknowledgment (acknowledgment, ACK) or a negative acknowledgment (negative acknowledgment, NACK). This process may be called HARQ feedback (or HARQ-ACK feedback).
  • HARQ-ACK information or feedback information, such as feedback bits.
  • the time interval from receiving the PDSCH to sending the HARQ-ACK information corresponding to the PDSCH to the network device by the terminal device may be referred to as a HARQ feedback timing.
  • Certain communication systems support dynamic determination of HARQ feedback timing.
  • the network device can schedule the terminal device to receive the PDSCH through the DCI.
  • the DCI may include indication information of the PUCCH resource used to transmit the HARQ-ACK information corresponding to the PDSCH.
  • the PUCCH resource indication information may include a PUCCH resource indication (PUCCH resource indicator) and a HARQ feedback timing indication (PDSCH-to-HARQ_feedback timing indicator).
  • the PUCCH resource indication can be used to determine the PUCCH resource for transmitting the HARQ-ACK information corresponding to the PDSCH, such as determining the frequency domain and/or code domain position of the PUCCH resource.
  • the HARQ feedback timing indication information can be used to dynamically determine the time domain position of the HARQ feedback resources (eg PUCCH resources).
  • a feedback time unit (or time domain position) where the HARQ feedback resource is located, the feedback time unit may be, for example, a time slot where the HARQ feedback resource is located.
  • the HARQ feedback resource indication information is usually represented by K 1 .
  • K 1 may indicate a time slot offset value between a PDSCH and a PUCCH or a physical uplink shared channel (physical uplink shared channel, PUSCH) carrying HARQ-ACK information corresponding to the PDSCH.
  • the HARQ feedback timing indication information may be used to indicate the values in the HARQ feedback timing set.
  • the value of the HARQ feedback timing set (or called K 1 value) and the determination method corresponding to different DCI formats may be different.
  • the DCI format for scheduling PDSCH reception may include a fallback DCI format (eg, DCI format 1_0) and a non-fallback DCI format (eg, DCI format 1_1 or DCI format 1_2).
  • a fallback DCI format eg, DCI format 1_0
  • a non-fallback DCI format eg, DCI format 1_1 or DCI format 1_2.
  • the K 1 value in the HARQ feedback timing set is usually preset.
  • the preset HARQ feedback timing set includes K 1 values ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the HARQ feedback timing indication information in DCI format 1_0 may include 3 bits. The 3-bit indication information is mapped one-to-one with the 8 K 1 values.
  • the K 1 value in the HARQ feedback timing set is usually configured by the network device.
  • the K 1 value configured by the network device ranges from 0 to 15, or from 0 to 31, or from -1 to 15. If the value of K 1 is -1, it may indicate that the value of the HARQ feedback timing indication information is an invalid value. Alternatively, if the value of K 1 is -1, it may indicate that the time slot where the PUCCH resource is located is temporarily uncertain.
  • the number of bits occupied by the HARQ feedback timing indication information in DCI format 1_1 or DCI format 1_2 is determined according to the number of K 1 values configured in the HARQ feedback timing set.
  • the number of bits occupied by the HARQ feedback timing indication information is ceil(log 2 (N)), where the ceil operator represents rounding up.
  • Possible values of the HARQ feedback timing indication information in DCI format 1_1 or DCI format 1_2 are mapped one-to-one with the N K 1 values. If only one K 1 value is configured in the HARQ feedback timing set, the HARQ feedback timing indication information may not be included in the DCI format 1_1 or DCI format 1_2. In this case, the time-domain position of the HARQ feedback resource can be determined according to the unique K 1 value.
  • the HARQ feedback timing set corresponding to DCI format 1_1 and the HARQ feedback timing set corresponding to DCI format 1_2 can be configured independently, or in other words, the HARQ feedback timing set corresponding to DCI format 1_1 and the HARQ feedback timing set corresponding to DCI format 1_2 Timing collections can be configured to be different or the same.
  • the terminal equipment When the terminal equipment performs HARQ feedback, it can adopt semi-static codebook feedback or dynamic codebook feedback.
  • the semi-static codebook may refer to a codebook in which the size of the HARQ-ACK codebook does not change dynamically with the actual data scheduling situation.
  • the semi-static codebook may include, for example, a Type-1 HARQ-ACK codebook and/or a Type-3 HARQ-ACK codebook.
  • the dynamic codebook may include, for example, a Type-2 HARQ-ACK codebook or an eType-2 HARQ-ACK codebook.
  • Type-1 HARQ-ACK codebook feedback may also be referred to as Type-1 HARQ-ACK information feedback corresponding to one PUCCH feedback slot.
  • the Type-1 HARQ-ACK codebook includes HARQ-ACK information corresponding to a candidate PDSCH reception occasion (candidate PDSCH reception occasion) within the HARQ-ACK feedback window .
  • the Type-1 HARQ-ACK codebook includes HARQ-ACK information corresponding to a group of candidate PDSCH receivers.
  • the HARQ-ACK feedback window or the group of candidate PDSCH receiver opportunities is determined according to the K 1 value in the HARQ feedback timing set.
  • a group of candidate PDSCH receiver opportunities corresponding to a PUCCH feedback slot can be determined according to the K 1 value in the HARQ feedback timing set and a time domain resource assignment (time domain resource assignment, TDRA) table.
  • the K 1 value may be used to determine at least one downlink time slot corresponding to the candidate PDSCH receiver.
  • the TDRA table can be used to determine the number of candidate PDSCH receiving opportunities corresponding to one downlink time slot. If the terminal device does not indicate the ability to receive multiple unicast PDSCHs within one time slot, one downlink time slot corresponds to one candidate PDSCH receiving opportunity.
  • the method of generating the Type-1 HARQ-ACK codebook will be illustrated in more detail below with reference to FIG. 2 .
  • the HARQ feedback timing set configured by the network device includes four K 1 values, which are ⁇ 2, 3, 4, 5 ⁇ respectively, then the HARQ-ACK feedback window corresponding to the PUCCH feedback slot n Including time slot n-5, time slot n-4, time slot n-3 and time slot n-2.
  • the terminal device does not indicate the ability to receive multiple unicast PDSCHs in one time slot, then the terminal device is in time slot n-5, time slot n-4, time slot n -3 and one of slot n-2 receives at most one PDSCH.
  • the HARQ-ACK codebook corresponding to the PUCCH feedback resource on slot n may include candidate PDSCH reception on slot n-5, slot n-4, slot n-3, and slot n-2.
  • the HARQ-ACK information corresponding to the opportunity For example, assuming that a candidate PDSCH receiver corresponds to 1-bit HARQ-ACK information, the HARQ-ACK codebook may include 4 bits. Table 1 below shows a possible form of the HARQ-ACK codebook.
  • the HARQ-ACK information corresponding to the time slot can be set as NACK .
  • the K 1 value in the HARQ feedback timing set is preset.
  • the K 1 value in the HARQ feedback timing set is configured by the network device. Therefore, the values of the HARQ feedback timing sets corresponding to these DCI formats may be different.
  • the generation of the Type-1 HARQ-ACK codebook is determined according to the K 1 value in the HARQ feedback timing set, and the Type-1 HARQ-ACK codebook generated with reference to the K 1 value in different HARQ feedback timing sets may be different. This may cause inconsistency between the understanding of the Type-1 HARQ-ACK codebook on the feedback time slot by the terminal device and the network device.
  • the terminal device can determine the HARQ-ACK codebook according to the K1 value in the preset HARQ feedback timing set.
  • the terminal device can determine the HARQ-ACK codebook according to the K1 value in the HARQ feedback timing set configured by the network device.
  • the terminal device determines the HARQ-ACK codebook according to the K 1 value in the HARQ feedback timing set configured by the network device, the terminal device does not expect that the K 1 value indicated by the HARQ feedback timing indication information in the received DCI format 1_0 does not belong to the preset The intersection of the set HARQ feedback timing set and the configured HARQ feedback timing set.
  • the K 1 values in the preset HARQ feedback timing set are ⁇ 1,2,3,4,5,6,7,8 ⁇
  • the K 1 values in the configured HARQ feedback timing set are ⁇ 4,6, 14 ⁇
  • the intersection of the preset HARQ feedback timing set and the configured HARQ feedback timing set is ⁇ 4,6 ⁇ .
  • the K 1 value indicated by the HARQ feedback timing indication information in the DCI format 1_0 expected to be received by the terminal device is ⁇ 4, 6 ⁇ .
  • the K 1 value indicated by the HARQ feedback timing indication information in the DCI format 1_0 that the terminal device does not expect to receive is ⁇ 1, 2, 3, 5, 7, 8 ⁇ .
  • the timing relationship in the NR system includes the HARQ feedback timing (or called the transmission timing of HARQ-ACK information transmitted on the PUCCH). Specifically, if a PDSCH reception end position is at time slot n or a PDCCH reception end position indicating semi-persistent scheduling (semi-persistent scheduling, SPS) PDSCH release is at time slot n, the terminal device should be at time slot n
  • the corresponding HARQ-ACK information is transmitted on the PUCCH resource within +K 1 .
  • K 1 represents the number of time slots. K 1 may be indicated through the HARQ feedback timing indication information in the DCI format, or may be provided through the HARQ feedback timing set.
  • the NTN system usually has a large transmission delay.
  • the above timing relationship of the NR system needs to be enhanced.
  • a simple solution is to introduce an offset value (or an offset parameter) into the system.
  • the offset value can be represented by K offset . This offset value can then be applied to the associated timing relationship.
  • the determination of the HARQ feedback timing of the NR system (or the transmission timing of the HARQ-ACK transmission on the PUCCH) can be changed to: for the time slot of the PUCCH transmission, the terminal device should be in the time slot n+ The corresponding HARQ-ACK information is transmitted on the PUCCH resource within K 1 +K offset .
  • the network device can indicate the K offset value to the terminal device through a system message.
  • the K offset value can be used to enhance the timing relationship of the terminal device during the initial access process.
  • the K offset value can be used to enhance the timing relationships involved in the following processes:
  • the PUSCH scheduled by the uplink authorization in the random access response random access response, RAR
  • fallbackRAR fallback random access response
  • Temporary cell-radio network temporary identifier (temporary cell-radio network temporary identifier, TC-RNTI) scrambled DCI format 0_0 scheduled PUSCH (message 3 (message 3, or Msg3 for short) retransmission);
  • C-RNTI Cell-radio network temporary identifier
  • the HARQ feedback corresponding to the PDSCH scheduled by the DCI format 1_0 of the C-RNTI scrambled code or
  • the K offset value can be updated.
  • the network device can update the K offset value through RRC signaling or MAC CE.
  • the RRC signaling may be, for example, RRC configuration signaling, or RRC reconfiguration signaling.
  • the updated K offset value can be used for timing relationship enhancement.
  • the updated K offset value can be used to enhance the timing relationship involved in the following process:
  • C-RNTI configured scheduling radio network temporary identifier (CS-RNTI) or modulation and coding scheme-cell radio network temporary identity (MCS-C-RNTI) PUSCH scheduled by scrambled DCI format 0_0 or DCI format 0_1 or DCI format 0_2;
  • CS-RNTI radio network temporary identifier
  • MCS-C-RNTI modulation and coding scheme-cell radio network temporary identity
  • a network device may configure multiple offset values for an end device.
  • the terminal device may receive an offset value during the initial access phase; after entering the RRC connection state, the terminal device may receive another offset value.
  • the terminal device receives multiple offset values, and different offset values correspond to different beams or different synchronization signal block (synchronization signal block, SSB) indexes.
  • SSB synchronization signal block indexes.
  • the terminal equipment receives multiple offset values, how the terminal equipment should determine the feedback time unit during the HARQ feedback process has not yet had a suitable solution. If the terminal device and the network device have inconsistent understandings of the way to determine the feedback time unit, it will lead to inconsistent understanding of the HARQ-ACK codebook transmitted on the feedback time unit, which will lead to confusion in the communication process.
  • a terminal device may receive multiple offset values. For example, the terminal device may receive the offset value indicated by the network device through a system message, and may also receive the offset value indicated by the network device through RRC signaling or MAC CE signaling. If the terminal device is configured with a HARQ-ACK codebook (such as a semi-static HARQ-ACK codebook), in the case of receiving multiple offset values, the terminal device and the network device may determine HARQ-ACK based on different offset values codebook, thus causing the transmission failure of the HARQ-ACK codebook.
  • a HARQ-ACK codebook such as a semi-static HARQ-ACK codebook
  • Fig. 3 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application. The method in FIG. 3 is described from the perspective of interaction between the terminal device and the network device.
  • the terminal device and network device may be the terminal device and network device shown in FIG. 1A to FIG. 1C .
  • the communication system where the terminal device and the network device are located may be a communication system that uses an offset value to enhance the timing relationship, such as the aforementioned NTN system.
  • step S310 the terminal device receives the first DCI corresponding to the first DCI format.
  • the first DCI format may include a fallback DCI format.
  • the first DCI format may include DCI format 1_0.
  • the first DCI may correspond to a first HARQ feedback timing.
  • the first DCI may indicate a first HARQ feedback timing.
  • the first HARQ feedback timing may correspond to a first set of HARQ feedback timings.
  • the first HARQ feedback timing may belong to the first HARQ feedback timing set.
  • the value indicated by the first HARQ feedback timing is a value in the first HARQ feedback timing set.
  • the first HARQ feedback timing set may be the HARQ feedback timing set corresponding to the first DCI.
  • the first HARQ feedback timing set may be a preset HARQ feedback timing set.
  • the preset HARQ feedback timing set may be, for example, ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the first DCI may include HARQ feedback timing indication information.
  • the HARQ feedback timing indication information may indicate the first HARQ feedback timing in the first HARQ feedback timing set. Taking the first HARQ feedback timing set as ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ as an example, the value of the first HARQ feedback timing K 1 indicated by the HARQ feedback timing indication information in the first DCI Can be a value in ⁇ 1,2,3,4,5,6,7,8 ⁇ .
  • step S320 the terminal device determines a first feedback time unit corresponding to the first DCI according to the first HARQ feedback timing and the first target offset value.
  • the first target offset value may be determined according to the first offset value or the second offset value.
  • the first target offset value is the first offset value.
  • the first target offset value is the second offset value.
  • the first offset value and/or the second offset value may be an offset value configured by the network device for the terminal device.
  • the first offset value and/or the second offset value may be used for timing relationship enhancement.
  • the first offset value and/or the second offset value may be used to enhance the timing relationship of a system with a large transmission delay (eg NTN) system.
  • the first offset value may be determined according to first indication information sent by the network device.
  • the first offset value may be indicated by first indication information.
  • the first indication information may be carried in a system message sent by the network device.
  • the system message may be, for example, a system information block (SIB) message.
  • SIB system information block
  • the time unit indicated by the first indication information may be a time unit based on a first subcarrier spacing (subcarrier spacing, SCS).
  • the time unit based on the first SCS may include, for example, one of the following: one or more sub-slots based on the first SCS, one or more time slots based on the first SCS, or one or more sub-slots based on the first SCS symbols.
  • the first SCS may be a reference SCS.
  • the first SCS may be preset (for example, predefined by the protocol), or may be configured by the network device.
  • the time unit indicated by the first indication information may be one of the following: subframe, frame, millisecond and second.
  • the time unit of the first offset value may be a time unit based on the second SCS.
  • the second SCS is determined based on the SCS corresponding to the first feedback time unit and/or the SCS corresponding to the first DCI.
  • the second SCS is the same as the SCS corresponding to the first feedback time unit or the SCS corresponding to the first DCI.
  • the second SCS is a larger value among the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI.
  • the second SCS is the smaller value of the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI.
  • the second SCS may be the same as or different from the aforementioned first SCS.
  • the time unit based on the second SCS may include, for example, one of the following: one or more sub-slots based on the second SCS, one or more time slots based on the second SCS, or one or more sub-slots based on the second SCS symbols.
  • the first offset value determined based on the first indication information may be different. For example, assuming that the first indication information indicates 10 ms, if the second SCS is 15 kHz, the first offset value is 10 time slots; if the second SCS is 30 kHz, the first offset value is 20 time slots.
  • the second offset value may be determined according to second indication information sent by the network device.
  • the second offset value may be indicated by second indication information.
  • the second indication information may be carried in RRC signaling or MAC CE sent by the network device.
  • the RRC signaling may be, for example, RRC configuration signaling or RRC reconfiguration signaling.
  • the time unit indicated by the second indication information may be a time unit based on the first SCS.
  • the time unit based on the first SCS may include, for example, one of the following: one or more sub-slots based on the first SCS, one or more time slots based on the first SCS, or one or more sub-slots based on the first SCS symbols.
  • the first SCS may be a reference SCS.
  • the first SCS may be preset (for example, predefined by the protocol), or may be configured by the network device.
  • the time unit indicated by the second indication information may be one of the following: subframe, frame, millisecond and second.
  • the time unit of the second offset value may be a time unit based on the second SCS.
  • the second SCS is determined based on the SCS corresponding to the first feedback time unit and/or the SCS corresponding to the first DCI.
  • the second SCS is the same as the SCS corresponding to the first feedback time unit or the SCS corresponding to the first DCI.
  • the second SCS is a larger value among the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI.
  • the second SCS is the smaller value of the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI.
  • the second SCS may be the same as or different from the aforementioned first SCS.
  • the time unit based on the second SCS may include, for example, one of the following: one or more sub-slots based on the second SCS, one or more time slots based on the second SCS, or one or more sub-slots based on the second SCS symbols.
  • the second offset value determined based on the second indication information may be different. For example, assuming that the second indication information indicates 10 ms, if the second SCS is 15 kHz, the second offset value is 10 time slots; if the second SCS is 30 kHz, the second offset value is 20 time slots.
  • the second offset value can be understood as an updated value of the first offset value.
  • the first offset value may be an offset value received by the terminal device from the network device during the initial access phase. After the terminal device enters the RRC connection state, the network device may send an updated value of the first offset value, that is, the second offset value, to the terminal device.
  • the first offset value corresponds to the first SSB index
  • the second offset value corresponds to the second SSB index
  • the first offset value is a cell-common offset value
  • the second offset value is a terminal device-specific offset value
  • the first target offset value may be used by the terminal device to determine uplink timing for uplink transmission during the initial access process.
  • the first target offset value may be used by the terminal device to determine uplink timing in a random access process.
  • the first target offset value may be determined according to the first offset value.
  • the first target offset value may be the first offset value.
  • the first target offset value determined according to the first offset value may be used to enhance at least one timing relationship involved in the following process:
  • the HARQ feedback corresponding to the PDSCH scheduled by the DCI format 1_0 of the C-RNTI scrambled code or
  • the first target offset value may be used by the terminal equipment to determine uplink timing for uplink transmission in the RRC connected state.
  • the first target offset value may be determined according to the second offset value.
  • the first target offset value may be the second offset value.
  • the first target offset value determined according to the second offset value may be used to enhance at least one timing relationship involved in the following process:
  • the first target offset value may be used by the terminal device to determine an uplink timing for uplink transmission corresponding to a fallback DCI format (for example, DCI format 1_0 and/or DCI format 0_0). Wherein, at this time the first target offset value is determined according to the first offset value, or at this time the first target offset value is the first offset value. That is to say, regardless of whether the terminal device is in the initial access process or in the RRC connection state, when the terminal device receives the uplink transmission schedule corresponding to DCI format 1_0 and/or DCI format 0_0, the terminal device always uses the first bias-based The first target offset value determined by the offset value is used to determine the corresponding uplink timing.
  • a fallback DCI format for example, DCI format 1_0 and/or DCI format 0_0.
  • the first target offset value determined according to the first offset value may be used to enhance at least one timing relationship involved in the following process:
  • the second target offset value may be used by the terminal device to determine for uplink transmission of a corresponding non-fallback DCI format (for example, at least one of DCI format 1_1, DCI format 1_2, DCI format 0_1, and DCI format 0_2) Uplink timing.
  • the second target offset value may be determined according to the second offset value.
  • the second target offset value may be a second offset value. That is to say, when the terminal device receives the uplink transmission schedule corresponding to the non-fallback DCI format, the terminal device always determines the corresponding uplink timing according to the second target offset value determined based on the second offset value.
  • the second target offset value determined according to the second offset value may be used to enhance at least one timing relationship involved in the following process:
  • the first target offset value may correspond to the first DCI format.
  • the first target offset value may be used to determine the uplink timing corresponding to the first DCI format.
  • the first feedback time unit or HARQ feedback resource corresponding to the PDSCH scheduled by the first DCI format may be determined based on the first target offset value and the K 1 value.
  • the K 1 value mentioned here may be a value in the first HARQ feedback timing set. Taking the first HARQ feedback timing set as ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ as an example, the value of K 1 may be a value from 1 to 8.
  • the first feedback time unit or HARQ feedback resource corresponding to the PDSCH scheduled in the first DCI format may be determined based on the sum of the first offset value and the K 1 value.
  • the second target offset value may correspond to a second DCI format.
  • the second target offset value may be used to determine the uplink timing corresponding to the second DCI format.
  • the feedback time unit or HARQ feedback resource corresponding to the PDSCH scheduled in the second DCI format may be determined based on the second target offset value and the K 1 ' value.
  • the K 1 ' value mentioned here may be a value in the second HARQ feedback timing set.
  • the time unit of the first feedback time unit may be a time unit based on the second SCS (such as 15kHZ or 30kHZ).
  • the time unit of the first feedback time unit may be, for example, one or more sub-slots, one or more time slots, or one or more symbols.
  • the first feedback time unit may be a time unit for transmitting the first HARQ-ACK codebook. Therefore, in some embodiments, the method in FIG. 3 may further include step S330: the terminal device sends the first HARQ-ACK codebook in the first feedback time unit (or through the feedback resource in the first feedback time unit).
  • the first HARQ-ACK codebook may be determined or generated by the terminal device.
  • the first HARQ-ACK codebook may be a semi-static HARQ-ACK codebook.
  • the first HARQ-ACK codebook is a Type-1 HARQ-ACK codebook.
  • the first feedback time unit is associated with the second HARQ feedback timing set and/or the second target offset value.
  • the association relationship may mean that: the candidate physical channel receiver opportunity corresponding to the first feedback time unit may be determined according to the second HARQ feedback timing set and/or the second target offset value.
  • the candidate physical channel receiver opportunity corresponding to the first feedback time unit may be determined based on nK 1 ′-K offset2 .
  • n represents the first feedback time unit (such as time slot n)
  • K 1 ' can be a value (or time slot offset value) in the second HARQ feedback timing set
  • K offset2 represents the second target offset value .
  • the candidate physical channel corresponding to the first feedback time unit may include, for example, the PDSCH and/or the PDCCH indicating the release of the SPS PDSCH.
  • the second HARQ feedback timing set may be a HARQ feedback timing set corresponding to the second DCI format.
  • the second HARQ feedback timing set may be a configured HARQ feedback timing set.
  • the K 1 value in the second HARQ feedback timing set may be configured.
  • the so-called “configured” may refer to network device configuration.
  • the network device can be configured through high-layer signaling (such as RRC signaling).
  • the K 1 value in the second HARQ feedback timing set configured by the network device is selected from the following value ranges: 0 to 15, or 0 to 31, or -1 to 15.
  • the second HARQ feedback timing set configured by the network device for the terminal device may be ⁇ 2, 4, 5 ⁇ .
  • the second DCI format may be a non-fallback DCI format.
  • the second DCI format may include DCI format 1_1 and/or DCI format 1_2.
  • the second DCI format includes one DCI format. For example, if the second DCI format only includes DCI format 1_1, or the second DCI format includes DCI format 1_1 and does not include DCI format 1_2, then the second HARQ feedback timing set may be the configured HARQ feedback timing set corresponding to DCI format 1_1.
  • the second DCI format includes one DCI format. For example, if the second DCI format only includes DCI format 1_2, or the second DCI format includes DCI format 1_2 but does not include DCI format 1_1, then the second HARQ feedback timing set may be the configured HARQ feedback timing set corresponding to DCI format 1_2.
  • the second DCI format includes two DCI formats.
  • the second DCI format includes DCI format 1_1 and DCI format 1_2, then the second HARQ feedback timing set may be the union of the configured HARQ feedback timing set corresponding to DCI format 1_1 and the configured HARQ feedback timing set corresponding to DCI format 1_2 .
  • the HARQ feedback timing set corresponding to DCI format 1_1 configured by the network device for the terminal device is ⁇ 5,10,14 ⁇
  • the configured HARQ feedback timing set corresponding to DCI format 1_2 is ⁇ 2,4 ⁇
  • the second HARQ feedback The timing set is ⁇ 2,4,5,10,14 ⁇ .
  • the method for determining the second HARQ feedback timing set may be similar to that when the second DCI format includes two DCI formats, which will not be repeated here.
  • the second target offset value is determined according to the second offset value.
  • the second target offset value may be a second offset value.
  • the second target offset value may be used by the terminal equipment to determine uplink timing for uplink transmission in the RRC connected state.
  • the second target offset value or the second offset value may be used to enhance at least one timing relationship involved in the following process:
  • the second target offset value may correspond to a second DCI format.
  • the second target offset value may be used to determine the uplink timing corresponding to the second DCI format.
  • the feedback time unit or HARQ feedback resource corresponding to the PDSCH scheduled by the second DCI in the second DCI format may be determined based on the second target offset value and the K 1 ′ value.
  • the K 1 ' value mentioned here refers to a value in the second HARQ feedback timing set. Taking the second HARQ feedback timing set as ⁇ 2,4,5 ⁇ as an example, the value of K 1 ′ may be one of 2,4,5.
  • the feedback time unit or HARQ feedback resource corresponding to the PDSCH scheduled by the second DCI in the second DCI format may be determined based on the sum of the second target offset value and the K 1 ′ value.
  • the first feedback time unit may be used to transmit the first HARQ-ACK codebook.
  • the first HARQ-ACK codebook may correspond to one HARQ feedback window.
  • the candidate physical channel reception opportunity corresponding to the first feedback time unit may refer to the candidate physical channel reception opportunity within the HARQ feedback window. That is to say, the first HARQ-ACK codebook may include HARQ-ACK information corresponding to candidate physical channel receivers within the HARQ feedback window.
  • the candidate physical channel receiver opportunity corresponding to the first feedback time unit is determined according to the second HARQ feedback timing set and/or the second target offset value
  • the candidate physical channel receiver opportunity corresponding to the first feedback time unit is determined according to the second HARQ feedback timing set and/or the second target offset value
  • the first HARQ - The ACK codebook is determined according to the second target offset value and the second HARQ feedback timing set.
  • the first target offset value is determined according to the first offset value.
  • the first target offset value is determined according to the second offset value.
  • the terminal device may determine the first HARQ-ACK codebook based on the first offset value and the first HARQ feedback timing set.
  • the first DCI format corresponds to the first HARQ feedback timing set
  • the second DCI format corresponds to the second HARQ feedback timing set.
  • the HARQ feedback timing sets corresponding to different DCI formats may be different.
  • the first offset value may be the offset value used by the terminal device in the initial access process
  • the second offset value may be the offset value used by the terminal device in the RRC connection state. It can be seen that the offset values used by the terminal equipment in the initial access state and the RRC connection state may also be different. Regardless of the difference in the HARQ feedback timing set or the difference in the offset value, the generated first HARQ-ACK codebook will be different.
  • the embodiment of this application clearly stipulates the generation method of the first HARQ-ACK codebook of the terminal device, thereby avoiding the communication caused by the inconsistent understanding of the first HARQ-ACK codebook between the network device and the terminal device Confused.
  • the second HARQ feedback timing set configured by the network device for the terminal device includes three K 1 ' values, which are ⁇ 2, 4, 5 ⁇ respectively.
  • the first feedback time unit is time slot n in FIG. 4 .
  • the PUCCH feedback resource in the slot n can be used to feed back the first HARQ-ACK codebook.
  • K offset2 in FIG. 4 represents the second target offset value.
  • the time slots corresponding to the candidate PDSCH receivers corresponding to the first feedback time unit may include time slot n-5-K offset2 , time slot n-4-K offset2 and time slot n-2-K offset2 .
  • the first HARQ - ACK codebook transmitted by the PUCCH feedback resource on slot n may include HARQ-ACK information corresponding to PDSCH.
  • the first HARQ-ACK codebook may be in the following form, for example:
  • the first DCI format corresponds to the first HARQ feedback timing set. Therefore, the first HARQ feedback timing corresponding to the first DCI format may be selected from the first HARQ feedback timing set.
  • the terminal device may not expect the first HARQ feedback timing to correspond to the first HARQ-ACK codebook HARQ feedback windows conflict.
  • the concept of the first set is introduced below to solve this problem.
  • the first HARQ feedback timing may correspond to the first set.
  • the first set may be determined according to at least one of the following: a first set of HARQ feedback timings, a second set of HARQ feedback timings, a first target offset value, and a second target offset value.
  • the first set may be the intersection of the second set and the third set; or, the first set may be the difference between the intersection of the second set and the third set and the first target offset value.
  • the second set may be determined based on the first target offset value and the first set of HARQ feedback timings.
  • the values in the second set may be the sum of the first target offset value and the values in the first HARQ feedback timing set.
  • the third set may be determined based on the second target offset value and the second set of HARQ feedback timings.
  • the values in the third set may be the sum of the second target offset value and the values in the second HARQ feedback timing set.
  • the first HARQ feedback timing corresponding to the first set may refer to: the first HARQ feedback timing is associated with the values in the first set.
  • the first HARQ feedback timing corresponding to the first set may include: the sum of the first HARQ feedback timing and the first target offset value is a value in the first set. That is to say, the sum of the first HARQ feedback timing and the first target offset value is a value in the first set, which is expected by the terminal device; or the sum of the first HARQ feedback timing and the first target offset value is not the first A set of values that is not expected by an end device.
  • the terminal device when the first set is the intersection of the second set and the third set, the terminal device expects the sum of the first HARQ feedback timing and the first target offset value to be the value in the first set; or, the terminal device does not expect the first The sum of a HARQ feedback timing and the first target offset value is not the value in the first set.
  • the first DCI is DCI format 1_0
  • the first HARQ feedback timing set is a preset HARQ feedback timing set ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇
  • the second DCI is DCI format 1_1 or DCI format 1_2, and the second HARQ feedback timing set is the configured HARQ feedback timing set ⁇ 4, 6, 14 ⁇ .
  • K offset1 represents the first target offset value, and K offset1 is 30 time slots;
  • K offset2 represents the second target offset value, and K offset2 is 20 time slots.
  • K 1 represents the first HARQ feedback timing, and K 1 is indicated by the HARQ feedback timing indication information in the first DCI.
  • the second set may be the sum of the values in the first HARQ feedback timing set and K offset1 , that is, the second set may be ⁇ 31, 32, 33, 34, 35, 36, 37, 38 ⁇ ;
  • the three sets may be the sum of the values in the second HARQ feedback timing set and K offset2 , that is, the third set may be ⁇ 24, 26, 34 ⁇ .
  • the first set may be the intersection of the second set and the third set, that is, the first set may be ⁇ 34 ⁇ .
  • the terminal device expects the sum of K 1 and K offset1 to be the value in the first set, that is, the terminal expects the value of K 1 indicated by the HARQ feedback timing indication information in DCI format 1_0 to be ⁇ 4 ⁇ , so that K 1 The sum with K offset1 is 34, and 34 belongs to the first set.
  • the terminal device does not expect that the sum of K 1 and K offset1 is not the value in the first set, that is, the terminal does not expect the received K 1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be ⁇ 1, 2, 3,5,6,7,8 ⁇ , because the sum of these K 1 and K offset1 is ⁇ 31,32,33,35,36,37,38 ⁇ , none of these values belong to the first set.
  • the first DCI is DCI format 1_0
  • the first HARQ feedback timing set is a preset HARQ feedback timing set ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the second DCI includes DCI format 1_1 and DCI format 1_2.
  • the second HARQ feedback timing set It may be a union set of the HARQ feedback timing set ⁇ 5, 10, 14 ⁇ and the HARQ feedback timing set ⁇ 2, 4 ⁇ , that is, the second HARQ feedback timing set may be ⁇ 2, 4, 5, 10, 14 ⁇ .
  • K offset1 represents the first target offset value, and K offset1 is 30 time slots;
  • K offset2 represents the second target offset value, and K offset2 is 20 time slots.
  • K 1 represents the first HARQ feedback timing, and K 1 is indicated by the HARQ feedback timing indication information in the first DCI.
  • the second set may be the sum of the values in the first HARQ feedback timing set and K offset1 , that is, the second set may be ⁇ 31, 32, 33, 34, 35, 36, 37, 38 ⁇ ;
  • the three sets may be the sum of values in the second HARQ feedback timing set and K offset2 , that is, the third set may be ⁇ 22, 24, 25, 30, 34 ⁇ .
  • the first set may be the intersection of the second set and the third set, that is, the first set may be ⁇ 34 ⁇ .
  • the terminal device expects the sum of K 1 and K offset1 to be the value in the first set, that is, the terminal expects the value of K 1 indicated by the HARQ feedback timing indication information in DCI format 1_0 to be ⁇ 4 ⁇ , so that K 1 The sum with K offset1 is 34, and 34 belongs to the first set.
  • the terminal device does not expect that the sum of K 1 and K offset1 is not the value in the first set, that is, the terminal does not expect the received K 1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be ⁇ 1, 2, 3,5,6,7,8 ⁇ , because the sum of these K 1 and K offset1 is ⁇ 31,32,33,35,36,37,38 ⁇ , none of these values belong to the first set.
  • the first HARQ feedback timing corresponding to the first set may include: the first HARQ feedback timing is a value in the first set. That is to say, it is expected by the terminal device that the first HARQ feedback timing is a value in the first set; or it is not expected by the terminal device that the first HARQ feedback timing is not a value in the first set. For example, when the first set is the difference between the intersection of the second set and the third set and the first target offset value, the terminal device expects the first HARQ feedback timing to be the value in the first set; or, the terminal device does not expect the first The HARQ feedback timing is not the value in the first set.
  • the first DCI is DCI format 1_0
  • the first HARQ feedback timing set is a preset HARQ feedback timing set ⁇ 1, 2, 3, 5, 6, 7, 8 ⁇ .
  • the second DCI is DCI format 1_1 or DCI format 1_2, and the second HARQ feedback timing set is the configured HARQ feedback timing set ⁇ 4, 6, 14 ⁇ .
  • K offset1 represents the first target offset value
  • K offset1 is 70 time slots
  • K offset2 represents the second target offset value
  • K offset2 is 60 time slots.
  • K 1 represents the first HARQ feedback timing, and K 1 is indicated by the HARQ feedback timing indication information in the first DCI.
  • the second set may be the sum of the values in the first HARQ feedback timing set and K offset1 , that is, the second set may be ⁇ 71, 72, 73, 74, 75, 76, 77, 78 ⁇ ;
  • the three sets may be the sum of values in the second HARQ feedback timing set and K offset2 , that is, the third set may be ⁇ 64, 66, 74 ⁇ .
  • the first set may be the difference between the intersection of the second set and the third set and K offset1 , that is, the first set may be ⁇ 4 ⁇ .
  • the terminal device expects K 1 to be a value in the first set, that is, the terminal expects the value of K 1 indicated by the HARQ feedback timing indication information in DCI format 1_0 to be ⁇ 4 ⁇ . Or, the terminal device does not expect that the K 1 indicated by the HARQ feedback timing indication information in DCI format 1_0 is not a value in the first set, that is, the terminal does not expect to receive the K 1 value ⁇ 1,2,3,5,6 ,7,8 ⁇ .
  • the first DCI is DCI format 1_0
  • the first HARQ feedback timing set is a preset HARQ feedback timing set ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the second DCI includes DCI format 1_1 and DCI format 1_2.
  • the second HARQ feedback timing set It may be a union set of the HARQ feedback timing set ⁇ 5, 10, 14 ⁇ and the HARQ feedback timing set ⁇ 2, 4 ⁇ , that is, the second HARQ feedback timing set may be ⁇ 2, 4, 5, 10, 14 ⁇ .
  • K offset1 represents the first target offset value, and K offset1 is 70 time slots;
  • K offset2 represents the second target offset value, and K offset2 is 60 time slots.
  • K 1 represents the first HARQ feedback timing, and K 1 is indicated by the HARQ feedback timing indication information in the first DCI.
  • the second set may be the sum of the values in the first HARQ feedback timing set and K offset1 , that is, the second set may be ⁇ 71, 72, 73, 74, 75, 76, 77, 78 ⁇ ;
  • the three sets may be the sum of the values in the second HARQ feedback timing set and K offset2 , that is, the third set may be ⁇ 62, 64, 65, 70, 74 ⁇ .
  • the first set may be the difference between the intersection of the second set and the third set and K offset1 , that is, the first set may be ⁇ 4 ⁇ .
  • the terminal device expects K 1 to be a value in the first set, that is, the terminal expects the value of K 1 indicated by the HARQ feedback timing indication information in DCI format 1_0 to be ⁇ 4 ⁇ . Or, the terminal device does not expect that the K 1 indicated by the HARQ feedback timing indication information in DCI format 1_0 is not a value in the first set, that is, the terminal does not expect to receive the K 1 value ⁇ 1,2,3,5,6 ,7,8 ⁇ .
  • the first target offset value before the terminal device is configured with the second offset value or configured with the second HARQ feedback timing set, the first target offset value may be determined according to the first offset value; and/or the terminal device After the second offset value is configured or the second HARQ feedback timing set is configured, the first target offset value may be determined according to the second offset value.
  • the first target offset value and the second target offset value may be the same. For example, both the first target offset value and the second target offset value may be equal to the second offset value.
  • the terminal device obtains the first offset value through the system message sent by the network device, and determines the first target offset value based on the first offset value (for example, the first offset value value as the first target offset value).
  • the terminal equipment After entering the RRC connection state, the terminal equipment obtains the second offset value through the RRC signaling or MAC CE sent by the network equipment. In this case, the terminal equipment determines the second target offset value based on the second offset value (such as take the second offset value as the second target offset value).
  • the terminal device determines the second target offset value based on the second offset value (for example, the second offset value is used as the second target offset value).
  • FIG. 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device 500 shown in FIG. 5 may include a receiving unit 510 and a determining unit 520 .
  • the receiving unit 510 may be configured to receive a first DCI corresponding to a first DCI format, where the first DCI corresponds to a first HARQ feedback timing.
  • the determining unit 520 may be configured to determine a first feedback time unit corresponding to the first DCI according to the first HARQ feedback timing and a first target offset value, where the first HARQ feedback timing corresponds to a first HARQ feedback timing set
  • the first HARQ feedback timing set is the HARQ feedback timing set corresponding to the first DCI format
  • the first target offset value is determined according to the first offset value or the second offset value.
  • the first feedback time unit is associated with a second HARQ feedback timing set and/or a second target offset value, where the second HARQ feedback timing set is the HARQ feedback corresponding to the second DCI format
  • the second target offset value is determined according to the second offset value.
  • the first feedback time unit has an association relationship with the second HARQ feedback timing set and/or the second target offset value, including: the candidate physical channel receiver opportunity corresponding to the first feedback time unit is based on the determined by the second HARQ feedback timing set and/or the second target offset value.
  • the first HARQ feedback timing corresponds to a first set, where the first set is determined according to at least one of the following: the first HARQ feedback timing set, the second HARQ feedback timing set, the The first target offset value and the second target offset value.
  • the first set is the intersection of the second set and the third set, or, the first set is the difference between the intersection of the second set and the third set and the first target offset value; wherein , the second set is determined based on the first target offset value and the first HARQ feedback timing set, and the third set is determined based on the second target offset value and the second HARQ feedback The timing set is determined.
  • the value in the second set is the sum of the first target offset value and the value in the first HARQ feedback timing set; and/or, the value in the third set is The sum of the second target offset value and the value in the second HARQ feedback timing set.
  • the first HARQ feedback timing corresponds to a first set, including: a sum of the first HARQ feedback timing and the first target offset value is a value in the first set.
  • the first set is the intersection of the second set and the third set.
  • the first HARQ feedback timing corresponds to a first set, including: the first HARQ feedback timing is a value in the first set.
  • the first set is the difference between the intersection of the second set and the third set and the first target offset value.
  • the second HARQ feedback timing set is a HARQ feedback timing set configured by the network device; and/or, the second DCI format includes DCI format 1_1 and/or DCI format 1_2.
  • the first DCI corresponds to the first HARQ feedback timing, including: HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.
  • the first target offset value is determined according to the first offset value; and /or, after the terminal device is configured with the second offset value or configured with the second HARQ feedback timing set, the first target offset value is determined according to the second offset value.
  • the first target offset value is determined according to the first offset value.
  • the first target offset value is used by the terminal device to determine uplink timing for uplink transmission during the initial access process; and/or, the second target offset value is used by the terminal device in The uplink timing is determined for uplink transmission in the RRC connected state.
  • the first HARQ feedback timing set is a preset HARQ feedback timing set; and/or, the first DCI format includes DCI format 1_0.
  • the first offset value is determined according to first indication information sent by the network device; and/or, the second offset value is determined according to second indication information sent by the network device.
  • the first indication information is carried in a system message sent by the network device.
  • the second indication information is carried in RRC signaling or MAC CE sent by the network device.
  • the time unit indicated by the first indication information is a time unit based on the first SCS or the time unit indicated by the first indication information is one of subframe, frame, millisecond and second; and/or
  • the time unit indicated by the second indication information is a time unit based on the first SCS or the time unit indicated by the second indication information is one of subframe, frame, millisecond and second.
  • the first SCS is preset or configured by a network device.
  • the time unit of the first offset value is a time unit based on the second SCS; and/or, the time unit of the second offset value is a time unit based on the second SCS.
  • the second SCS is determined based on the SCS corresponding to the first feedback time unit and/or the SCS corresponding to the first DCI.
  • a time unit is one of the following: one or more sub-slots, one or more time slots, and one or more symbols.
  • the terminal device 500 further includes: a sending unit, configured to send the first HARQ-ACK codebook in the first feedback time unit.
  • FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the terminal device 600 shown in FIG. 6 may include a sending unit 610 and a determining unit 620 .
  • the sending unit 610 may be configured to send a first DCI corresponding to a first DCI format, where the first DCI corresponds to a first HARQ feedback timing.
  • the determining unit 620 may be configured to determine a first feedback time unit corresponding to the first DCI according to the first HARQ feedback timing and a first target offset value, where the first HARQ feedback timing corresponds to a first HARQ feedback timing set
  • the first HARQ feedback timing set is the HARQ feedback timing set corresponding to the first DCI format
  • the first target offset value is determined according to the first offset value or the second offset value.
  • the first feedback time unit is associated with a second HARQ feedback timing set and/or a second target offset value, where the second HARQ feedback timing set is the HARQ feedback corresponding to the second DCI format
  • the second target offset value is determined according to the second offset value.
  • the first feedback time unit has an association relationship with the second HARQ feedback timing set and/or the second target offset value, including: the candidate physical channel receiver opportunity corresponding to the first feedback time unit is based on the determined by the second HARQ feedback timing set and/or the second target offset value.
  • the first HARQ feedback timing corresponds to a first set, where the first set is determined according to at least one of the following: the first HARQ feedback timing set, the second HARQ feedback timing set, the The first target offset value and the second target offset value.
  • the first set is the intersection of the second set and the third set, or, the first set is the difference between the intersection of the second set and the third set and the first target offset value; wherein , the second set is determined based on the first target offset value and the first HARQ feedback timing set, and the third set is determined based on the second target offset value and the second HARQ feedback The timing set is determined.
  • the value in the second set is the sum of the first target offset value and the value in the first HARQ feedback timing set; and/or, the value in the third set is all The sum of the second target offset value and the value in the second HARQ feedback timing set.
  • the first HARQ feedback timing corresponds to a first set, including: a sum of the first HARQ feedback timing and the first target offset value is a value in the first set.
  • the first set is the intersection of the second set and the third set.
  • the first HARQ feedback timing corresponds to a first set, including: the first HARQ feedback timing is a value in the first set.
  • the first set is the difference between the intersection of the second set and the third set and the first target offset value.
  • the second HARQ feedback timing set is a HARQ feedback timing set configured by the network device; and/or, the second DCI format includes DCI format 1_1 and/or DCI format 1_2.
  • the first DCI corresponds to the first HARQ feedback timing, including: HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.
  • the first target offset value is determined according to the first offset value; and /or, after the terminal device is configured with the second offset value or configured with the second HARQ feedback timing set, the first target offset value is determined according to the second offset value.
  • the first target offset value is determined according to the first offset value.
  • the first target offset value is used by the terminal device to determine uplink timing for uplink transmission during the initial access process; and/or, the second target offset value is used by the terminal device in The uplink timing is determined for uplink transmission in the RRC connected state.
  • the first HARQ feedback timing set is a preset HARQ feedback timing set; and/or, the first DCI format includes DCI format 1_0.
  • the first offset value is determined according to first indication information sent by the network device; and/or, the second offset value is determined according to second indication information sent by the network device.
  • the first indication information is carried in a system message sent by the network device.
  • the second indication information is carried in RRC signaling or MAC CE sent by the network device.
  • the time unit indicated by the first indication information is a time unit based on the first SCS or the time unit indicated by the first indication information is one of subframe, frame, millisecond and second; and/or
  • the time unit indicated by the second indication information is a time unit based on the first SCS or the time unit indicated by the second indication information is one of subframe, frame, millisecond and second.
  • the first SCS is preset or configured by a network device.
  • the time unit of the first offset value is a time unit based on the second SCS; and/or, the time unit of the second offset value is a time unit based on the second SCS.
  • the second SCS is determined based on the SCS corresponding to the first feedback time unit and/or the SCS corresponding to the first DCI.
  • a time unit is one of the following: one or more sub-slots, one or more time slots, and one or more symbols.
  • the network device 600 may further include: a receiving unit, configured to receive the first HARQ-ACK codebook in the first feedback time unit.
  • Fig. 7 is a schematic structural diagram of an online training device according to an embodiment of the present application.
  • the dotted line in Figure 7 indicates that the unit or module is optional.
  • the apparatus 700 may be used to implement the methods described in the foregoing method embodiments.
  • Apparatus 700 may be a chip, a terminal device or a network device.
  • Apparatus 700 may include one or more processors 710 .
  • the processor 710 may support the device 600 to implement the methods described in the foregoing method embodiments.
  • the processor 710 may be a general purpose processor or a special purpose processor.
  • the processor may be a central processing unit (central processing unit, CPU).
  • the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (field programmable gate arrays, FPGAs) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • Apparatus 700 may also include one or more memories 720 .
  • a program is stored in the memory 720, and the program can be executed by the processor 710, so that the processor 710 executes the methods described in the foregoing method embodiments.
  • the memory 720 may be independent from the processor 710 or may be integrated in the processor 710 .
  • Apparatus 700 may also include a transceiver 730 .
  • the processor 710 can communicate with other devices or chips through the transceiver 730 .
  • the processor 710 may send and receive data with other devices or chips through the transceiver 730 .
  • the embodiment of the present application also provides a computer-readable storage medium for storing programs.
  • the computer-readable storage medium can be applied to the terminal device or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes programs.
  • the computer program product can be applied to the terminal device or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal device or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.
  • B 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 may also be determined according to A and/or other information.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital versatile disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)

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

Abstract

La présente invention concerne un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Le procédé comprend : la réception, par un dispositif terminal, d'une première information DCI correspondant à un premier format DCI, la première information DCI correspondant à un premier schéma temporel de rétroinformations HARQ ; la détermination, par le dispositif terminal selon le premier schéma temporel de rétroinformations HARQ et une première valeur de décalage cible, d'une première unité de temps de rétroinformations correspondant à la première information DCI, le premier schéma temporel de rétroinformations HARQ correspondant à un premier ensemble de schémas temporels de rétroinformations HARQ, le premier ensemble de schémas temporels de rétroinformations HARQ étant un ensemble de schémas temporels de rétroinformations HARQ correspondant au premier format DCI, et la première valeur de décalage cible étant déterminée selon une première valeur de décalage ou une seconde valeur de décalage. Durant un processus de rétroinformations HARQ, lors de la réception d'une information DCI programmée à l'aide du premier format DCI, le dispositif terminal détermine une unité de temps de rétroinformations sur la base de la première valeur de décalage cible de façon à éviter une confusion dans un processus de communication.
PCT/CN2021/111020 2021-08-05 2021-08-05 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2023010459A1 (fr)

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CN202180098265.8A CN117461276A (zh) 2021-08-05 2021-08-05 无线通信的方法、终端设备和网络设备

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CN111447686A (zh) * 2019-02-15 2020-07-24 维沃移动通信有限公司 一种harq-ack反馈方法、终端和网络设备
CN111525986A (zh) * 2019-02-01 2020-08-11 中国移动通信有限公司研究院 确定harq反馈时序的方法及装置、设备、存储介质

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US20170288763A1 (en) * 2016-04-04 2017-10-05 Samsung Electronics Co., Ltd. Method and apparatus for managing beam in beamforming system
CN109586857A (zh) * 2017-09-29 2019-04-05 中国移动通信有限公司研究院 一种harq反馈方法、传输方法、终端及网络侧设备
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