WO2023010459A1

WO2023010459A1 - Wireless communication method, terminal device, and network device

Info

Publication number: WO2023010459A1
Application number: PCT/CN2021/111020
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2023-02-09
Also published as: CN117461276A

Abstract

Provided are a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device receives a first DCI corresponding to a first DCI format, the first DCI corresponding to a first HARQ feedback timing; the terminal device determines, according to the first HARQ feedback timing and a first target offset value, a first feedback time unit corresponding to the first DCI, the first HARQ feedback timing corresponding to a first HARQ feedback timing set, the first HARQ feedback timing set being a HARQ feedback timing set corresponding to the first DCI format, and the first target offset value being determined according to a first offset value or a second offset value. During a HARQ feedback process, upon the receipt of a DCI scheduled using the first DCI format, the terminal device determines a feedback time unit on the basis of the first target offset value, so as to prevent confusion in a communication process.

Description

Wireless communication method, terminal device and network device

technical field

The present application relates to the field of communication technologies, and more specifically, to a wireless communication method, terminal equipment, and network equipment.

Background technique

Certain communication systems (such as non-terrestrial network (NTN) systems) have relatively large time delays. Therefore, this type of communication system usually introduces an offset value (such as K _offset ) to enhance the timing relationship in the communication system.

In the above communication system, 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.

Contents of the invention

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.

In a first aspect, a wireless communication method is provided, 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.

In a second aspect, a wireless communication method is provided, 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.

In a third aspect, a terminal device is provided, 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.

In a fourth aspect, a network device is provided, 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.

According to a fifth aspect, a terminal device is provided, 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.

According to a sixth aspect, a network device is provided, 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.

In a seventh aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the first aspect.

In an eighth aspect, an apparatus is provided, 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.

In a tenth aspect, a chip is provided, 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.

In an eleventh aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the first aspect.

In a twelfth aspect, a computer-readable storage medium is provided, 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.

Description of drawings

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.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. With regard to the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: global system of mobile communication (global system of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, broadband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (GPRS), long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long term evolution, LTE-A) system , new radio (new radio, NR) system, 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) on unlicensed spectrum unlicensed spectrum (NR-U) system, NTN system, universal mobile telecommunications system (UMTS), wireless local area network (wireless local area networks, WLAN), wireless fidelity (wireless fidelity, WiFi), fifth generation communication (5th-generation, 5G) system or other communication systems, such as future communication systems, such as the sixth-generation mobile communication system, and satellite communication systems.

Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, device to device (device to device, D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. , the embodiments of the present application may also be applied to these communication systems.

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.

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. By way of example and not limitation, 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.

In the embodiment of the present application, 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 The terminal equipment in the network, or the terminal equipment in the public land mobile network (public land mobile network, PLMN) network that will evolve in the future, etc.

In this embodiment of the application, 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. Optionally, UE can be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, 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.

In the embodiment of this application, 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).

In the embodiment of the present application, 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. 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.

As an example but not a limitation, in this embodiment of the present application, 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. 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. 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. Network-side equipment, equipment that assumes base station functions in future communication systems, etc. 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. For example, 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. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.

In some deployments, 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. In the embodiment of the present application, the scenarios where the network device and the terminal device are located are not limited.

As an example but not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. For example, 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. In some embodiments of the present application, the network device may also be a base station installed on land, in water, and other locations.

In this embodiment of the application, 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.

Exemplarily, FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1A , 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. In some embodiments of the present application, 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.

Exemplarily, FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1B , 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. In the architecture of the communication system shown in FIG. 1B , 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. In some embodiments of the present application, 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.

Exemplarily, FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1C , 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. In the architecture of the communication system shown in FIG. 1C , 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 . Under this system architecture, the base station 1203 may be called a network device. In some embodiments of the present application, 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.

It should be noted that Fig. 1A-Fig. 1C are only illustrations of the systems to which this application is applicable. Of course, 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.

In some embodiments 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.

It should be understood that 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. Taking the communication system 100 shown in FIG. 1A as an example, 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.

It should be understood that 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. For example, 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.

In the description of the embodiments of the present application, 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) .

In some embodiments of the present application, "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. For example, the predefined ones may refer to those defined in the protocol.

In some embodiments of the present application, 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.

For ease of understanding, some relevant technical knowledge involved in the embodiments of the present application is introduced first. The following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them belong to the protection scope of the embodiments of the present application. The embodiment of the present application includes at least part of the following content.

NTN

Currently, the 3rd generation partnership project (3rd generation partnership project, 3GPP) is researching NTN technology. NTN generally adopts satellite communication to provide communication services to ground users. Compared with terrestrial cellular network communication, satellite communication has many unique advantages.

First of all, satellite communication is not restricted by user's geography. For example, general ground communication networks cannot cover areas where network equipment cannot be set up, such as oceans, mountains, and deserts. Alternatively, terrestrial communication networks do not cover certain sparsely populated areas. As for 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.

Secondly, 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.

Thirdly, satellite communication has the advantage of long distance, and the increase of communication distance does not significantly increase the cost of communication.

Finally, 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. At present, the main researches are LEO satellites and GEO satellites.

The height range of LEO satellites is generally between 500km and 1500km. Correspondingly, the orbit period of the LEO satellite is about 1.5 hours to 2 hours. For LEO satellites, 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. For GEO satellites, the signal propagation delay of single-hop communication between users is generally about 250ms.

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.

Currently, the NTN system includes the NR-NTN system and the Internet of things (IoT)-NTN system.

Semi-static codebook feedback

For a terminal device with downlink services, 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. After receiving the PDSCH, 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). ACK and/or NACK may be collectively referred to as 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 (such as NR systems) support dynamic determination of HARQ feedback timing. For example, 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.

For example, 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).

For DCI format 1_0, the K ₁ value in the HARQ feedback timing set is usually preset. For example, the preset HARQ feedback timing set includes K ₁ values {1, 2, 3, 4, 5, 6, 7, 8}. Correspondingly, 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.

For DCI format 1_1 or DCI format 1_2, 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. Correspondingly, 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. For example, if N _K1 values are 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. It can be understood that 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.

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.

Taking Type-1 HARQ-ACK codebook feedback as an example, Type-1 HARQ-ACK codebook feedback may also be referred to as Type-1 HARQ-ACK information feedback corresponding to one PUCCH feedback slot. If the terminal device is configured with a Type-1 HARQ-ACK codebook, 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 . In other words, 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.

Specifically, 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.

For ease of understanding, the method of generating the Type-1 HARQ-ACK codebook will be illustrated in more detail below with reference to FIG. 2 . In the example corresponding to Figure 2, assuming that 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.

Assuming that a downlink time slot corresponds to a candidate PDSCH receiving opportunity, for example, 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.

As shown in Figure 2, 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.

Table 1

If there is a time slot not received by the scheduled PDSCH in time slot n-5, time slot n-4, time slot n-3 and time slot n-2, the HARQ-ACK information corresponding to the time slot can be set as NACK .

As mentioned above, for DCI format 1_0, the K ₁ value in the HARQ feedback timing set is preset. For DCI format 1_1 or DCI format 1_2, 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.

However, 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.

In order to solve this problem, when the terminal device is not configured with the HARQ feedback timing set by the network device, the terminal device can determine the HARQ-ACK codebook according to the _K1 value in the preset HARQ feedback timing set. When the terminal device is configured with the HARQ feedback timing set by the network device, 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. If 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.

For example, the K ₁ values in the preset HARQ feedback timing set are {1,2,3,4,5,6,7,8}, and the K ₁ values in the configured HARQ feedback timing set are {4,6, 14}, then the intersection of the preset HARQ feedback timing set and the configured HARQ feedback timing set is {4,6}. Correspondingly, 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}. Or, 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}.

Timing relationship of NR system and enhancement of timing relationship of NTN system

The timing relationship in the NR system is introduced below. 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 HARQ feedback timing set can be configured by, for example, the parameter dl-DataToUL-ACK (corresponding to DCI format 1_1) or dl-DataToUL-ACK-ForDCIFormat1_2 (corresponding to DCI format 1_2). If K ₁ =0, it means that the last time slot of PUCCH transmission overlaps with the time slot of PDSCH reception or PDCCH reception indicating SPS PDSCH release.

From the previous introduction about the NTN system, it can be known that the NTN system usually has a large transmission delay. In order to overcome the large transmission delay in the NTN system, 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.

After the timing relationship of the NR system is enhanced, 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 .

Indication and update of K _offset in NTN system

In the NTN system, 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.

As an example, 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) or fallback random access response (fallbackRAR);

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);

Cell-radio network temporary identifier (C-RNTI) scrambled DCI format 0_0 scheduled PUSCH;

HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0 of TC-RNTI scrambling code;

The HARQ feedback corresponding to the PDSCH scheduled by the DCI format 1_0 of the C-RNTI scrambled code; or

HARQ feedback corresponding to a successful random access response (successRAR).

After the terminal equipment enters the connected state (or the RRC connected state), the K _offset value can be updated. For example, 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. As an example, 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;

HARQ feedback corresponding to the PDSCH scheduled by DCI format 1_0 or DCI format 1_1 or DCI format 1_2 scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.

It can be seen from the foregoing that, for a communication system with a large delay (such as the NTN system), an offset value (such as K _offset mentioned above) is usually introduced to enhance the timing relationship in the communication system. In some cases, a network device may configure multiple offset values for an end device. For example, 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. For another example, 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. If 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.

Taking the determination process of the HARQ-ACK codebook as an example, in the NTN system, 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.

In order to solve the above problems, the following describes the embodiments of the present application in detail.

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.

In step S310, the terminal device receives the first DCI corresponding to the first DCI format.

In some embodiments, the first DCI format may include a fallback DCI format. For example, the first DCI format may include DCI format 1_0.

In some embodiments, the first DCI may correspond to a first HARQ feedback timing. For example, the first DCI may indicate a first HARQ feedback timing.

In some embodiments, the first HARQ feedback timing may correspond to a first set of HARQ feedback timings. Or, the first HARQ feedback timing may belong to the first HARQ feedback timing set. For example, the value indicated by the first HARQ feedback timing is a value in the first HARQ feedback timing set.

In some embodiments, the first HARQ feedback timing set may be the HARQ feedback timing set corresponding to the first DCI.

In some embodiments, 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}.

In some embodiments, 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}.

In 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.

In some embodiments, the first target offset value may be determined according to the first offset value or the second offset value. As an example, the first target offset value is the first offset value. As another example, the first target offset value is the second offset value.

In some embodiments, 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. For example, 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.

In some embodiments, the first offset value may be determined according to first indication information sent by the network device. Alternatively, the first offset value may be indicated by first indication information. As an example, 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. In other words, the first offset value may be determined based on system messages.

In some embodiments, 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.

In some other embodiments, 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. For example, the second SCS is the same as the SCS corresponding to the first feedback time unit or the SCS corresponding to the first DCI. For another example, 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. For another example, 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.

It should be noted that, for different SCSs, even if the time indicated by the first indication information is the same, 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.

In some embodiments, the second offset value may be determined according to second indication information sent by the network device. Alternatively, the second offset value may be indicated by second indication information. As an example, 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.

In some embodiments, 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.

In some other embodiments, 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. For example, the second SCS is the same as the SCS corresponding to the first feedback time unit or the SCS corresponding to the first DCI. For another example, 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. For another example, 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.

It should be noted that, for different SCSs, even if the time indicated by the second indication information is the same, 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.

In some embodiments, the second offset value can be understood as an updated value of the first offset value. For example, 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.

In some embodiments, the first offset value corresponds to the first SSB index, and/or, the second offset value corresponds to the second SSB index.

In some embodiments, the first offset value is a cell-common offset value, and/or the second offset value is a terminal device-specific offset value.

In some embodiments, the first target offset value may be used by the terminal device to determine uplink timing for uplink transmission during the initial access process. As an example, the first target offset value may be used by the terminal device to determine uplink timing in a random access process. For example, in this embodiment, the first target offset value may be determined according to the first offset value. Alternatively, in this embodiment, the first target offset value may be the first offset value.

As an example but not a limitation, 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:

PUSCH scheduled by uplink authorization in RAR or fallbackRAR;

TC-RNTI scrambled DCI format 0_0 scheduled PUSCH;

C-RNTI scrambled DCI format 0_0 scheduled PUSCH;

HARQ feedback corresponding to successRAR.

In some embodiments, the first target offset value may be used by the terminal equipment to determine uplink timing for uplink transmission in the RRC connected state. For example, in this embodiment, the first target offset value may be determined according to the second offset value. Alternatively, in this embodiment, the first target offset value may be the second offset value.

As an example but not a limitation, 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:

PUSCH scheduled by DCI format 0_0 or DCI format 0_1 or DCI format 0_2 scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI;

In some embodiments, 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.

As an example but not a limitation, in this case, 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:

C-RNTI, CS-RNTI or MCS-C-RNTI scrambled DCI format 0_0 scheduled PUSCH;

HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0 scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.

In some embodiments, 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. For example, in this embodiment, the second target offset value may be determined according to the second offset value. Alternatively, in this embodiment, 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.

As an example but not a limitation, in this case, 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:

PUSCH scheduled by DCI format 0_1 or DCI format 0_2 scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI;

HARQ feedback corresponding to the PDSCH scheduled by DCI format 1_1 or DCI format 1_2 scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.

In some embodiments, the first target offset value may correspond to the first DCI format. Alternatively, the first target offset value may be used to determine the uplink timing corresponding to the first DCI format. As an example, 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. As a more specific example, 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.

In some embodiments, the second target offset value may correspond to a second DCI format. Alternatively, the second target offset value may be used to determine the uplink timing corresponding to the second DCI format. As an example, 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.

In some embodiments, 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. For example, the first HARQ-ACK codebook is a Type-1 HARQ-ACK codebook.

In some embodiments, 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. As an example, the candidate physical channel receiver opportunity corresponding to the first feedback time unit may be determined based on nK ₁ ′-K _offset2 . Wherein, 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, and 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.

In some embodiments, the second HARQ feedback timing set may be a HARQ feedback timing set corresponding to the second DCI format.

In some embodiments, the second HARQ feedback timing set may be a configured HARQ feedback timing set. Alternatively, the K ₁ value in the second HARQ feedback timing set may be configured. The so-called "configured" may refer to network device configuration. For example, the network device can be configured through high-layer signaling (such as RRC signaling). As an example, 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. For example, the second HARQ feedback timing set configured by the network device for the terminal device may be {2, 4, 5}.

In some embodiments, the second DCI format may be a non-fallback DCI format. For example, the second DCI format may include DCI format 1_1 and/or DCI format 1_2.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the second DCI format includes two DCI formats. For example, 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 . For example, the HARQ feedback timing set corresponding to DCI format 1_1 configured by the network device for the terminal device is {5,10,14}, and the configured HARQ feedback timing set corresponding to DCI format 1_2 is {2,4}, then the second HARQ feedback The timing set is {2,4,5,10,14}.

It should be understood that if the second DCI format includes more DCI formats, 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.

In some embodiments, the second target offset value is determined according to the second offset value. As an example, the second target offset value may be a second offset value.

In some embodiments, the second target offset value may be used by the terminal equipment to determine uplink timing for uplink transmission in the RRC connected state.

As an example and not limitation, 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:

In some embodiments, the second target offset value may correspond to a second DCI format. Alternatively, the second target offset value may be used to determine the uplink timing corresponding to the second DCI format. As an example, 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. As a more specific example, 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.

As mentioned above, 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. Therefore, in this embodiment, "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" described above can be understood as: "the first HARQ - The ACK codebook is determined according to the second target offset value and the second HARQ feedback timing set".

In some embodiments, 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 is determined according to the first offset value.

In some embodiments, 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.

In some embodiments, if the terminal device does not receive the second indication information indicating the second offset value and/or is not configured with the second HARQ feedback timing set, or, after the terminal device receives the second indication information indicating the second offset value Before the second indication information and/or the second HARQ feedback timing set is configured, the terminal device may determine the first HARQ-ACK codebook based on the first offset value and the first HARQ feedback timing set.

As mentioned above, the first DCI format corresponds to the first HARQ feedback timing set, and the second DCI format corresponds to the second HARQ feedback timing set. There may be at least one different value between the value of the first HARQ feedback timing set and the value of the second HARQ feedback timing set, that is, the HARQ feedback timing sets corresponding to different DCI formats may be different. In addition, as mentioned above, the first offset value may be the offset value used by the terminal device in the initial access process, and 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.

In order to solve this problem, 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.

A specific example is given below with reference to FIG. 4 .

As shown in FIG. 4 , 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. In addition, in the example of FIG. 4 , 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 .

_Therefore , the first HARQ _- _ACK codebook transmitted by the PUCCH feedback resource on slot n may include HARQ-ACK information corresponding to PDSCH.

Assuming that one downlink time slot corresponds to one candidate PDSCH receiving opportunity (for example, the terminal device does not indicate the ability to receive multiple unicast PDSCHs in one time slot), and one PDSCH reception corresponds to 1-bit HARQ-ACK information, then the first HARQ - 3 bits may be included in the ACK codebook. The first HARQ-ACK codebook may be in the following form, for example:

As mentioned above, 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. However, if the first HARQ-ACK codebook is determined based on the second HARQ feedback timing set and/or the second target offset value, 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.

In some embodiments, 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.

In some embodiments, 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. For example, 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. For example, 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.

In some embodiments, 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. For example, 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.

As a specific example, the first DCI is DCI format 1_0, and 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. In this example, 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}. Correspondingly, 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. Or, 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.

As another specific example, the first DCI is DCI format 1_0, and 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. Assume that the HARQ feedback timing set corresponding to DCI format 1_1 configured by the network device is {5,10,14}, and the HARQ feedback timing set corresponding to DCI format 1_2 configured by the network device is {2,4}, then 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. In this example, 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}. Correspondingly, 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. Or, 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.

In some embodiments, 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.

For example, the first DCI is DCI format 1_0, and 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, 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. In this example, 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}. Correspondingly, 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}.

For example, the first DCI is DCI format 1_0, and 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. Assume that the HARQ feedback timing set corresponding to DCI format 1_1 configured by the network device is {5,10,14}, and the HARQ feedback timing set corresponding to DCI format 1_2 configured by the network device is {2,4}, then 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. In this example, 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}. Correspondingly, 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}.

In some embodiments, 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. In this case, 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.

As a specific example, in the initial access phase, 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). 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). Alternatively, after the terminal device acquires the second HARQ feedback timing set configured by the network device, 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).

The method embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 4 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 5 to FIG. 7 . It should be understood that the descriptions of the method embodiments correspond to the descriptions of the device embodiments, therefore, for parts not described in detail, reference may be made to the foregoing method embodiments.

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, and the first target offset value is determined according to the first offset value or the second offset value.

Optionally, 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 For a timing set, the second target offset value is determined according to the second offset value.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, the first set is the intersection of the second set and the third set.

Optionally, the first HARQ feedback timing corresponds to a first set, including: the first HARQ feedback timing is a value in the first set.

Optionally, the first set is the difference between the intersection of the second set and the third set and the first target offset value.

Optionally, 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.

Optionally, 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.

Optionally, before the terminal device is configured with the second offset value or configured with a second 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.

Optionally, the first target offset value is determined according to the first offset value.

Optionally, 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.

Optionally, the first HARQ feedback timing set is a preset HARQ feedback timing set; and/or, the first DCI format includes DCI format 1_0.

Optionally, 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.

Optionally, the first indication information is carried in a system message sent by the network device.

Optionally, the second indication information is carried in RRC signaling or MAC CE sent by the network device.

Optionally, 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.

Optionally, the first SCS is preset or configured by a network device.

Optionally, 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.

Optionally, 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.

Optionally, a time unit is one of the following: one or more sub-slots, one or more time slots, and one or more symbols.

Optionally, 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, and the first target offset value is determined according to the first offset value or the second offset value.

Optionally, 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.

Optionally, the first SCS is preset or configured by a network device.

Optionally, 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. For example, the processor may be a central processing unit (central processing unit, CPU). Alternatively, 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 . For example, 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.

It should be understood that in this embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that 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.

It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, 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.

In addition, 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.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. 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.

Claims

A method for wireless communication, comprising:

The terminal device receives the first DCI corresponding to the first downlink control information DCI format, and the first DCI corresponds to the first hybrid automatic repeat request 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.
The method according to claim 1, wherein the first feedback time unit is associated with a second HARQ feedback timing set and/or a second target offset value, wherein the second HARQ feedback timing set is a HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined according to the second offset value.
The method according to claim 2, wherein the first feedback time unit has an association relationship with the second HARQ feedback timing set and/or the second target offset value, comprising:

The candidate physical channel receiving 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 method according to claim 2 or 3, wherein the first HARQ feedback timing corresponds to a first set, wherein 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 first target offset value and the second target offset value.
The method according to claim 4, wherein the first set is the intersection of the second set and the third set, or the first set is the intersection of the second set and the third set and the intersection of the second set and the third set the difference between a 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 The feedback timing set is determined.
The method according to claim 5, wherein 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 method according to any one of claims 4-6, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The sum of the first HARQ feedback timing and the first target offset value is a value in the first set.
The method according to claim 7, wherein the first set is the intersection of the second set and the third set.
The method according to any one of claims 4-6, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The first HARQ feedback timing is a value in the first set.
The method according to claim 9, wherein the first set is the difference between the intersection of the second set and the third set and the first target offset value.
The method according to any one of claims 2-10, wherein the second HARQ feedback timing set is a HARQ feedback timing set configured by a network device; and/or,

The second DCI format includes DCI format 1_1 and/or DCI format 1_2.
The method according to any one of claims 1-11, wherein the first DCI corresponds to a first HARQ feedback timing, comprising: HARQ feedback timing indication information in the first DCI indicates the first The first HARQ feedback timing in the HARQ feedback timing set.
The method according to any one of claims 1-12, wherein before the terminal device is configured with the second offset value or configured with the second HARQ feedback timing set, the first target offset The 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 method according to any one of claims 1-12, characterized in that the first target offset value is determined according to the first offset value.
The method according to any one of claims 1-14, wherein 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 to determine an uplink timing for uplink transmission in a radio resource control RRC connected state.
The method according to any one of claims 1-15, wherein 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 method according to any one of claims 1-16, wherein 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 the second indication information sent by the network device.
The method according to claim 17, wherein the first indication information is carried in a system message sent by the network device.
The method according to claim 17 or 18, wherein the second indication information is carried in the RRC signaling or medium access control element (MAC CE) sent by the network device.
The method according to any one of claims 17-19, wherein the time unit indicated by the first indication information is a time unit based on the first subcarrier spacing SCS or the time indicated by the first indication information The unit 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 method according to claim 20, wherein the first SCS is preset or configured by a network device.
The method according to any one of claims 1-21, wherein 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 based on the time unit of the second SCS; and/or,

The time unit of the first feedback time unit is based on the time unit of the second SCS.
The method according to claim 22, wherein 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 method according to any one of claims 20-23, wherein a time unit is one of the following: one or more sub-slots, one or more time slots, and one or more symbols.
The method according to any one of claims 1-24, further comprising:

The terminal device sends a first hybrid automatic repeat request confirmation HARQ-ACK codebook in the first feedback time unit.
A method for wireless communication, comprising:

The network device sends the first DCI corresponding to the first downlink control information DCI format, and the first DCI corresponds to the first hybrid automatic repeat request HARQ feedback timing;

The network 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.
The method according to claim 26, wherein the first feedback time unit is associated with a second HARQ feedback timing set and/or a second target offset value, wherein the second HARQ feedback timing set is a HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined according to the second offset value.
The method according to claim 27, wherein the first feedback time unit has an association relationship with the second HARQ feedback timing set and/or the second target offset value, comprising:

The candidate physical channel receiving 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 method according to claim 27 or 28, wherein the first HARQ feedback timing corresponds to a first set, wherein 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 first target offset value and the second target offset value.
The method according to claim 29, wherein the first set is the intersection of the second set and the third set, or the first set is the intersection of the second set and the third set and the intersection of the second set and the third set the difference between a 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 The feedback timing set is determined.
The method according to claim 30, wherein 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 method according to any one of claims 29-31, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The sum of the first HARQ feedback timing and the first target offset value is a value in the first set.
The method of claim 32, wherein the first set is the intersection of the second set and the third set.
The method according to any one of claims 29-31, wherein the first HARQ feedback timing corresponds to a first set, comprising:

The first HARQ feedback timing is a value in the first set.
The method according to claim 34, wherein the first set is the difference between the intersection of the second set and the third set and the first target offset value.
The method according to any one of claims 27-35, wherein the second HARQ feedback timing set is a HARQ feedback timing set configured by a network device; and/or,

The second DCI format includes DCI format 1_1 and/or DCI format 1_2.
The method according to any one of claims 26-36, wherein the first DCI corresponds to a first HARQ feedback timing, comprising: HARQ feedback timing indication information in the first DCI indicates that the first The first HARQ feedback timing in the HARQ feedback timing set.
The method according to any one of claims 26-37, wherein before the terminal device is configured with the second offset value or configured with the second HARQ feedback timing set, the first target offset The 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 method according to any one of claims 26-37, wherein the first target offset value is determined according to the first offset value.
The method according to any one of claims 26-39, wherein 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 to determine an uplink timing for uplink transmission in a radio resource control RRC connected state.
The method according to any one of claims 26-40, wherein 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 method according to any one of claims 26-41, wherein 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 the second indication information sent by the network device.
The method according to claim 42, wherein the first indication information is carried in a system message sent by the network device.
The method according to claim 42 or 43, wherein the second indication information is carried in the RRC signaling or MAC CE sent by the network device.
The method according to any one of claims 42-44, wherein the time unit indicated by the first indication information is a time unit based on the first subcarrier spacing SCS or the time indicated by the first indication information The unit 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 method according to claim 45, wherein the first SCS is preset or configured by a network device.
The method according to any one of claims 26-46, wherein 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 based on the time unit of the second SCS; and/or,

The time unit of the first feedback time unit is based on the time unit of the second SCS.
The method according to claim 47, wherein 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 method according to any one of claims 45-48, wherein a time unit is one of the following: one or more sub-slots, one or more time slots, and one or more symbols.
The method according to any one of claims 26-49, further comprising:

The network device receives a first hybrid automatic repeat request confirmation HARQ-ACK codebook in the first feedback time unit.
A terminal device, characterized in that it includes:

The receiving unit is configured to receive the first DCI corresponding to the first downlink control information DCI format, and the first DCI corresponds to the first hybrid automatic repeat request HARQ feedback timing;

A determining unit, 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, and the first target offset value is determined according to the first offset value or the second offset value.
The terminal device according to claim 51, wherein the first feedback time unit is associated with a second HARQ feedback timing set and/or a second target offset value, wherein the second HARQ feedback timing The set is a HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined according to the second offset value.
The terminal device according to claim 52, wherein the first feedback time unit is associated with the second HARQ feedback timing set and/or the second target offset value, including:

The candidate physical channel receiving 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 terminal device according to claim 52 or 53, wherein the first HARQ feedback timing corresponds to a first set, wherein 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 first target offset value, and the second target offset value.
The terminal device according to claim 54, wherein the first set is the intersection of the second set and the third set, or the first set is the intersection of the second set and the third set and the The difference between 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 The feedback timing set is determined.
The terminal device according to claim 55, wherein 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 terminal device according to any one of claims 54-56, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The sum of the first HARQ feedback timing and the first target offset value is a value in the first set.
The terminal device according to claim 57, wherein the first set is an intersection of the second set and the third set.
The terminal device according to any one of claims 54-56, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The first HARQ feedback timing is a value in the first set.
The terminal device according to claim 59, wherein 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 according to any one of claims 52-60, wherein the second HARQ feedback timing set is a HARQ feedback timing set configured by a network device; and/or,

The second DCI format includes DCI format 1_1 and/or DCI format 1_2.
The terminal device according to any one of claims 51-61, wherein the first DCI corresponds to a first HARQ feedback timing, comprising: HARQ feedback timing indication information in the first DCI indicates that the first The first HARQ feedback timing in a set of HARQ feedback timings.
The terminal device according to any one of claims 51-62, wherein before the terminal device is configured with the second offset value or configured with the second HARQ feedback timing set, the first target an offset value is determined based on said 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 terminal device according to any one of claims 51-62, wherein the first target offset value is determined according to the first offset value.
The terminal device according to any one of claims 51-64, wherein 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 to determine an uplink timing for uplink transmission in a radio resource control RRC connected state.
The terminal device according to any one of claims 51-65, wherein 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 terminal device according to any one of claims 51-66, wherein the first offset value is determined according to the first indication information sent by the network device; and/or,

The second offset value is determined according to the second indication information sent by the network device.
The terminal device according to claim 67, wherein the first indication information is carried in a system message sent by the network device.
The terminal device according to claim 67 or 68, wherein the second indication information is carried in the RRC signaling or medium access control element MAC CE sent by the network device.
The terminal device according to any one of claims 67-69, wherein the time unit indicated by the first indication information is the time unit based on the first subcarrier spacing SCS or the time unit indicated by the first indication information The unit of time is one of subframes, frames, milliseconds and seconds; 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 terminal device according to claim 70, wherein the first SCS is preset or configured by a network device.
The terminal device according to any one of claims 51-71, wherein 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 based on the time unit of the second SCS; and/or,

The time unit of the first feedback time unit is based on the time unit of the second SCS.
The terminal device according to claim 72, wherein 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 terminal device according to any one of claims 70-73, wherein one 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 according to any one of claims 51-74, wherein the terminal device further comprises:

A sending unit, configured to send a first hybrid automatic repeat request acknowledgment HARQ-ACK codebook in the first feedback time unit.
A network device, characterized in that it includes:

A sending unit, configured to send the first DCI corresponding to the first downlink control information DCI format, the first DCI corresponding to the first hybrid automatic repeat request HARQ feedback timing;

A determining unit, 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, and the first target offset value is determined according to the first offset value or the second offset value.
The network device according to claim 76, wherein the first feedback time unit is associated with a second HARQ feedback timing set and/or a second target offset value, wherein the second HARQ feedback timing The set is a HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined according to the second offset value.
The network device according to claim 77, wherein the first feedback time unit has an association relationship with the second HARQ feedback timing set and/or the second target offset value, comprising:

The candidate physical channel receiving 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 network device according to claim 77 or 78, wherein the first HARQ feedback timing corresponds to a first set, wherein 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 first target offset value, and the second target offset value.
The network device according to claim 79, wherein the first set is the intersection of the second set and the third set, or the first set is the intersection of the second set and the third set and the The difference between 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 The feedback timing set is determined.
The network device according to claim 80, wherein 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 network device according to any one of claims 79-81, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The sum of the first HARQ feedback timing and the first target offset value is a value in the first set.
The network device according to claim 82, wherein the first set is an intersection of the second set and the third set.
The network device according to any one of claims 79-81, wherein the first HARQ feedback timing corresponds to the first set, comprising:

The first HARQ feedback timing is a value in the first set.
The network device according to claim 84, wherein the first set is the difference between the intersection of the second set and the third set and the first target offset value.
The network device according to any one of claims 77-85, wherein 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 network device according to any one of claims 76-86, wherein the first DCI corresponds to the first HARQ feedback timing, comprising: the HARQ feedback timing indication information in the first DCI indicates the first The first HARQ feedback timing in a set of HARQ feedback timings.
The network device according to any one of claims 76-87, wherein the first target an offset value is determined based on said 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 network device according to any one of claims 76-87, wherein the first target offset value is determined according to the first offset value.
The network device according to any one of claims 76-89, wherein 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 to determine an uplink timing for uplink transmission in a radio resource control RRC connected state.
The network device according to any one of claims 76-90, wherein 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 network device according to any one of claims 76-91, wherein 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 the second indication information sent by the network device.
The network device according to claim 92, wherein the first indication information is carried in a system message sent by the network device.
The network device according to claim 92 or 93, wherein the second indication information is carried in the RRC signaling or MAC CE sent by the network device.
The network device according to any one of claims 92-94, wherein the time unit indicated by the first indication information is a time unit based on the first subcarrier spacing (SCS) or the time unit indicated by the first indication information The unit of time is one of subframes, frames, milliseconds and seconds; 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 network device according to claim 95, wherein the first SCS is preset or configured by the network device.
The network device according to any one of claims 76-96, wherein 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 based on the time unit of the second SCS; and/or,

The time unit of the first feedback time unit is based on the time unit of the second SCS.
The network device according to claim 97, wherein 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 network device according to any one of claims 95-98, wherein 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 according to any one of claims 76-99, wherein the network device further comprises:

A receiving unit, configured to receive a first hybrid automatic repeat request acknowledgment HARQ-ACK codebook in the first feedback time unit.
A terminal device, characterized in that it includes a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the program described in any one of claims 1-25. Methods.
A network device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute any one of claims 26-50 Methods.
An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 1-25.
An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method as claimed in any one of claims 26-50.
A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-25.
A chip, characterized in that it includes a processor for calling a program from a memory, so that a device equipped with the chip executes the method according to any one of claims 26-50.
A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-25.
A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 26-50.
A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 1-25.
A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 26-50.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1-25.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 26-50.