Method, terminal device and network device for wireless communication

Abstract

A method, a terminal device and a network device of wireless communication are provided. The method comprises: receiving, by the terminal device, a first DCI corresponding to a first DCI format, the first DCI corresponding to a first HARQ feedback timing; determining, by the terminal device, a first feedback time unit corresponding to the first DCI according to the first HARQ feedback timing and a first target offset value, wherein 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 a first offset value or a second offset value. In a HARQ feedback process, when receiving a DCI scheduled by using the first DCI format, the terminal device determines a feedback time unit based on the first target offset value, so as to avoid confusion in the communication process.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal device, and network device. Background Technology

[0002] Some communication systems (such as non-terrestrial network (NTN) systems) have significant latency. Therefore, such communication systems typically introduce offset values ​​(such as K). offset This is to enhance the timing relationships in the communication system.

[0003] In the aforementioned communication system, terminal devices may sometimes receive multiple offset values. Currently, there is no suitable solution for how the terminal device should determine the feedback time unit during the Hybrid Automatic Repeat Request (HARQ) feedback process if it receives multiple offset values. If the terminal device and network device have inconsistent understandings of how to determine this feedback time unit, it can lead to communication errors. Summary of the Invention

[0004] This application provides a wireless communication method, network device, and terminal device to avoid communication process errors between the terminal device and the network device.

[0005] In a first aspect, a wireless communication method is provided, comprising: a terminal device receiving a first DCI corresponding to a first downlink control information (DCI) format, the first DCI corresponding to a first HARQ feedback timing sequence; the terminal device determining a first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing sequence and a first target offset value, wherein the first HARQ feedback timing sequence corresponds to a first HARQ feedback timing sequence set, the first HARQ feedback timing sequence set is a HARQ feedback timing sequence set corresponding to the first DCI format, and the first target offset value is determined based on a first offset value or a second offset value.

[0006] In a second aspect, a wireless communication method is provided, comprising: a network device transmitting a first DCI corresponding to a first DCI format, the first DCI corresponding to a first HARQ feedback timing sequence; the network device determining a first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing sequence and a first target offset value, wherein the first HARQ feedback timing sequence corresponds to a first HARQ feedback timing sequence set, the first HARQ feedback timing sequence set is a HARQ feedback timing sequence set corresponding to the first DCI format, and the first target offset value is determined based on a first offset value or a second offset value.

[0007] Thirdly, a terminal device is provided, comprising: a receiving unit, configured to receive a first DCI corresponding to a first DCI format, the first DCI corresponding to a first HARQ feedback timing sequence; and a determining unit, configured to determine a first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing sequence and a first target offset value, wherein the first HARQ feedback timing sequence corresponds to a first HARQ feedback timing sequence set, the first HARQ feedback timing sequence set is a HARQ feedback timing sequence set corresponding to the first DCI format, and the first target offset value is determined based on a first offset value or a second offset value.

[0008] Fourthly, a network device is provided, comprising: a transmitting unit, configured to transmit a first DCI corresponding to a first DCI format, the first DCI corresponding to a first HARQ feedback timing sequence; and a determining unit, configured to determine a first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing sequence and a first target offset value, wherein the first HARQ feedback timing sequence corresponds to a first HARQ feedback timing sequence set, the first HARQ feedback timing sequence set is a HARQ feedback timing sequence set corresponding to the first DCI format, and the first target offset value is determined based on a first offset value or a second offset value.

[0009] Fifthly, a terminal device is provided, including a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to execute the method as described in the first aspect.

[0010] In a sixth aspect, a network device is provided, including a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to execute the method described in the second aspect.

[0011] A seventh aspect provides an apparatus including a processor for calling a program from a memory to perform the method described in the first aspect.

[0012] Eighthly, an apparatus is provided, including a processor for calling a program from memory to perform the method described in the second aspect.

[0013] A ninth aspect provides a chip including a processor for calling a program from memory, causing a device having the chip mounted to perform the method described in the first aspect.

[0014] In a tenth aspect, a chip is provided, including a processor for calling a program from memory, causing a device having the chip mounted to perform the method described in the second aspect.

[0015] Eleventhly, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method described in the first aspect.

[0016] In a twelfth aspect, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method described in the second aspect.

[0017] In a thirteenth aspect, a computer program product is provided, including a program that causes a computer to perform the method described in the first aspect.

[0018] In a fourteenth aspect, a computer program product is provided, including a program that causes a computer to perform the method described in the second aspect.

[0019] In a fifteenth aspect, a computer program is provided that causes a computer to perform the method described in the first aspect.

[0020] In a sixteenth aspect, a computer program is provided that causes a computer to perform the method described in the second aspect.

[0021] This application embodiment clarifies that during the HARQ feedback process, when a terminal device receives a DCI scheduled using the first DCI format, it determines the feedback time unit based on the first target offset value. This ensures that the terminal device and the network device have a consistent understanding of how the feedback time unit is determined, thereby avoiding communication errors. Attached Figure Description

[0022] Figures 1A-1C This is an example diagram of a communication system applicable to embodiments of this application.

[0023] Figure 2 This is an example diagram of HARQ-ACK codebook feedback in related technologies.

[0024] Figure 3 This is a schematic flowchart of a wireless communication method provided in an embodiment of this application.

[0025] Figure 4 This is an example diagram of HARQ-ACK codebook feedback provided in the embodiments of this application.

[0026] Figure 5 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application.

[0027] Figure 6 This is a schematic diagram of the network device provided in the embodiments of this application.

[0028] Figure 7 This is a schematic diagram of the device provided in the embodiments of this application. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0030] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, NTN system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-generation (5G) communication systems or other communication systems, such as future communication systems, such as 6th-generation mobile communication systems, or satellite communication systems.

[0031] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, 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. The embodiments of this application can also be applied to these communication systems.

[0032] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0033] The communication system in this application embodiment can be applied to unlicensed spectrum, which can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, which can also be considered as dedicated spectrum.

[0034] The embodiments of this application can be applied to NTN systems as well as terrestrial networks (TN) systems. By way of example and not limitation, NTN systems include NR-based NTN systems and IoT-based NTN systems.

[0035] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment, etc.

[0036] In the embodiments of this application, the terminal device may be a station (ST) in a WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0037] In the embodiments of this application, the terminal device can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as handheld devices with wireless connectivity, in-vehicle devices, etc. The terminal device in the embodiments of this application can be a mobile phone, tablet computer, laptop computer, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or D2D, etc. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices can communicate without relaying communication signals through base stations.

[0038] In the embodiments 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); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0039] In the embodiments of this application, the terminal device may be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical care, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, or wireless terminal device in smart home, etc. The terminal device involved in the embodiments of this application may also be referred to as a terminal, user equipment (UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, or UE device, etc. The terminal device may also be fixed or mobile.

[0040] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0041] The network device in this application embodiment can be a device for communicating with a terminal device. This network device can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, or a device that performs base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device performing base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0042] 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 depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0043] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0044] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0045] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments of this application, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a highly elliptical orbit (HEO) satellite, etc. In some embodiments of this application, the network device may also be a base station located on land, water, or other similar locations.

[0046] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0047] For example, Figure 1A This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. Figure 1A As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0048] Figure 1AAn exemplary diagram shows a network device and two terminal devices. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit the scope of the embodiments.

[0049] For example, Figure 1B This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application. Please refer to... Figure 1B This includes terminal device 1101 and satellite 1102, which can communicate wirelessly. The network formed between terminal device 1101 and satellite 1102 can also be called an NTN. Figure 1B In the architecture of the communication system shown, satellite 1102 can function as a base station, and terminal device 1101 and satellite 1102 can communicate directly. In this system architecture, satellite 1102 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1102, and the coverage area of ​​each network device 1102 may include other numbers of terminal devices; this application does not limit this aspect.

[0050] For example, Figure 1C This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application. Please refer to... Figure 1C The network includes terminal device 1201, satellite 1202, and base station 1203. Terminal device 1201 and satellite 1202 can communicate wirelessly, and satellite 1202 can communicate with base station 1203. The network formed by terminal device 1201, satellite 1202, and base station 1203 can also be called an NTN. Figure 1C In the architecture of the communication system shown, satellite 1202 may not function as a base station, and communication between terminal device 1201 and base station 1203 requires relay through satellite 1202. In this system architecture, base station 1203 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1203, and the coverage area of ​​each network device 1203 may include other numbers of terminal devices; this application does not limit this aspect.

[0051] It should be noted that, Figures 1A-1C This application is merely an example illustrating the system to which this application applies. Of course, the methods shown in the embodiments of this application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc. This application does not specifically limit these systems.

[0052] In some embodiments of this application, Figures 1A-1CThe wireless communication system shown may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but this application does not limit this.

[0053] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1A Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0054] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0055] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0056] The “configuration” in this application embodiment may include configuration via at least one of system messages, radio resource control (RRC) signaling, and media access control control element (MAC CE).

[0057] In some embodiments of this application, "predefined" or "preset" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, "predefined" can refer to what is defined in the protocol.

[0058] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of the term.

[0059] To facilitate understanding, some related technical knowledge involved in the embodiments of this application is first introduced. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0060] NTN

[0061] The 3rd Generation Partnership Project (3GPP) is currently researching NTN technology. NTN typically uses satellite communication to provide communication services to terrestrial users. Compared to terrestrial cellular network communication, satellite communication has many unique advantages.

[0062] First, satellite communication is not limited by the user's geographical location. For example, conventional terrestrial communication networks cannot cover areas such as oceans, mountains, and deserts where network equipment cannot be deployed. Similarly, terrestrial communication networks may not cover sparsely populated areas. However, with satellite communication, since a single satellite can cover a large area of ​​the Earth, and satellites orbit the Earth, theoretically, every corner of the Earth can be covered by satellite communication networks.

[0063] Secondly, satellite communication has significant social value. It can reach remote mountainous areas and impoverished, underdeveloped countries or regions at a relatively low cost, enabling people in these areas to enjoy advanced voice communication and mobile internet technologies. From this perspective, satellite communication helps bridge the digital divide with developed regions and promotes development in those areas.

[0064] Secondly, satellite communication has the advantage of long distance, and the increase in communication distance does not significantly increase the cost of communication.

[0065] Finally, satellite communication is highly stable and unaffected by natural disasters.

[0066] Communication satellites are classified according to their orbital altitude into low Earth orbit (LEO) satellites, medium Earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, and highly elliptical orbit (HEO) satellites. Currently, research primarily focuses on LEO and GEO satellites.

[0067] LEO satellites typically operate at altitudes ranging from 500 km to 1500 km. Correspondingly, their orbital periods are approximately 1.5 to 2 hours. For LEO satellites, the signal propagation delay for single-hop communication between users is generally less than 20 ms. The maximum visible time for LEO satellites is approximately 20 minutes. LEO satellites offer advantages such as short signal propagation distances, low link loss, and low requirements for the transmission power of user terminal equipment.

[0068] The GEO satellite orbits at an altitude of 35,786 km. Its orbital period around the Earth is 24 hours. For GEO satellites, the signal propagation delay for single-hop communication between users is typically approximately 250 ms.

[0069] To ensure satellite coverage and enhance the overall capacity of the satellite communication system, satellites typically employ multiple beams to cover ground areas. Therefore, a single satellite can generate dozens or even hundreds of beams to cover a ground area. One satellite beam can typically cover a ground area with a diameter of tens to hundreds of kilometers.

[0070] Currently, NTN systems include NR-NTN systems and Internet of Things (IoT)-NTN systems.

[0071] Semi-static codebook feedback

[0072] For terminal devices with downlink services, network devices can schedule the transmission of the Physical Downlink Shared Channel (PDSCH) for the terminal device through a Digital Access Control (DCI) or Downlink Grant DCI. This DCI may include indication information for Physical Uplink Control Channel (PUCCH) resources. After receiving the PDSCH, the terminal device can send the decoding result of the PDSCH back to the network device through the PUCCH resource. The decoding result of the PDSCH may be, for example, an acknowledgment (ACK) or a negative acknowledgment (NACK). This process can be called HARQ feedback (or HARQ-ACK feedback). ACK and / or NACK can be collectively referred to as HARQ-ACK information (or feedback information, such as feedback bits). The time interval between the terminal device receiving the PDSCH and sending the corresponding HARQ-ACK information to the network device can be called the HARQ feedback timing.

[0073] Some communication systems (such as NR systems) support dynamically determining HARQ feedback timing. For example, network devices can schedule terminal devices to receive PDSCHs via a DCI (Distributed Control Information Framework). This DCI can include indication information for PUCCH resources used to transmit the HARQ-ACK information corresponding to the PDSCH.

[0074] The indication information for the PUCCH resource may include a PUCCH resource indicator and a HARQ feedback timing indicator.

[0075] PUCCH resource indication can be used to determine the PUCCH resource transmitting HARQ-ACK information corresponding to the PDSCH, such as determining the frequency domain and / or code domain position of the PUCCH resource. HARQ feedback timing indication information can be used to dynamically determine the time domain position of the HARQ feedback resource (e.g., the PUCCH resource). The feedback time unit (or time domain position) where the HARQ feedback resource is located can be, for example, the time slot where the HARQ feedback resource is located. This HARQ feedback resource indication information is usually represented by K1. K1 can indicate the time slot offset value between the PDSCH and the PUCCH or physical uplink shared channel (PUSCH) carrying the HARQ-ACK information corresponding to the PDSCH.

[0076] HARQ feedback timing indication information can be used to indicate the values ​​in the HARQ feedback timing set. The values ​​(or K1 values) of the HARQ feedback timing set and the methods for determining them may differ for different DCI formats.

[0077] For example, the DCI format for scheduling PDSCH reception may include a fallback DCI format (e.g., DCI format 1_0) and a non-fallback DCI format (e.g., DCI format 1_1 or DCI format 1_2).

[0078] For DCI format 1_0, the K1 values ​​in the HARQ feedback timing set are typically preset. For example, a preset HARQ feedback timing set includes K1 values ​​of {1,2,3,4,5,6,7,8}. Accordingly, the HARQ feedback timing indication information in DCI format 1_0 may include 3 bits. This 3-bit indication information is mapped one-to-one with the 8 K1 values.

[0079] For DCI format 1_1 or DCI format 1_2, the K1 value in the HARQ feedback timing set is typically configured by the network device. The range of the K1 value configured by the network device is 0 to 15, 0 to 31, or -1 to 15. If the K1 value is -1, it indicates that the HARQ feedback timing indication information is invalid. Alternatively, if the K1 value is -1, it indicates that the time slot where the PUCCH resource resides is currently uncertain. Accordingly, the number of bits occupied by the HARQ feedback timing indication information in DCI format 1_1 or DCI format 1_2 is determined based on the number of K1 values ​​configured in the HARQ feedback timing set. For example, if N K1 values ​​are configured in the HARQ feedback timing set, then the number of bits occupied by the HARQ feedback timing indication information is ceil(log2(N)), where the ceil operator represents rounding up. The 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 these N K1 values. If only one K1 value is configured in the HARQ feedback timing set, then HARQ feedback timing indication information may not be included in DCI format 1_1 or DCI format 1_2. In this case, the time-domain location of the HARQ feedback resource can be determined based on this unique K1 value. It is 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 can be configured to be different or the same.

[0080] When performing HARQ feedback, terminal devices can use either semi-static codebook feedback or dynamic codebook feedback. A semi-static codebook refers to a codebook whose size does not dynamically change with actual data scheduling. For example, a semi-static codebook may include a Type-1 HARQ-ACK codebook and / or a Type-3 HARQ-ACK codebook. A dynamic codebook may include, for example, a Type-2 HARQ-ACK codebook or an eType-2 HARQ-ACK codebook.

[0081] Taking Type-1 HARQ-ACK codebook feedback as an example, Type-1 HARQ-ACK codebook feedback can also be referred to as Type-1 HARQ-ACK information feedback corresponding to a PUCCH feedback time 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 within a HARQ-ACK feedback window. In other words, the Type-1 HARQ-ACK codebook includes HARQ-ACK information corresponding to a set of candidate PDSCH reception occasions. This HARQ-ACK feedback window, or this set of candidate PDSCH reception occasions, is determined based on the K1 value in the HARQ feedback timing set.

[0082] Specifically, a set of candidate PDSCH reception opportunities corresponding to a PUCCH feedback slot can be determined based on the K1 value in the HARQ feedback timing set and the time domain resource assignment (TDRA) table. The K1 value can be used to determine at least one downlink slot corresponding to a candidate PDSCH reception opportunity. The TDRA table can be used to determine the number of candidate PDSCH reception opportunities corresponding to a downlink slot. If the terminal device does not indicate the ability to receive multiple unicast PDSCHs within a slot, then one downlink slot corresponds to one candidate PDSCH reception opportunity.

[0083] To facilitate understanding, the following will be combined with... Figure 2 This section provides a more detailed example illustrating the generation method of the Type-1 HARQ-ACK codebook. Figure 2 In the corresponding example, assuming that the HARQ feedback timing set configured in the network device includes 4 K1 values, namely {2,3,4,5}, then the HARQ-ACK feedback window corresponding to PUCCH feedback slot n includes slot n-5, slot n-4, slot n-3 and slot n-2.

[0084] Assuming that one downlink time slot corresponds to one candidate PDSCH reception opportunity, for example, if the terminal device does not indicate the ability to receive multiple unicast PDSCHs in one time slot, then the terminal device can receive at most one PDSCH in one of the time slots n-5, n-4, n-3 and n-2.

[0085] like Figure 2As shown, the HARQ-ACK codebook corresponding to the PUCCH feedback resource on slot n can include HARQ-ACK information corresponding to candidate PDSCH receiving opportunities on slots n-5, n-4, n-3, and n-2. For example, assuming that a candidate PDSCH receiving opportunity corresponds to 1 bit of HARQ-ACK information, the HARQ-ACK codebook can include 4 bits. Table 1 below shows one possible form of this HARQ-ACK codebook.

[0086] Table 1

[0087]

[0088] If there are time slots among time slots n-5, n-4, n-3, and n-2 that have not been received by the scheduled PDSCH, then the HARQ-ACK information corresponding to that time slot can be set to NACK.

[0089] As mentioned earlier, for DCI format 1_0, the K1 value in the HARQ feedback timing set is preset. For DCI format 1_1 or DCI format 1_2, the K1 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.

[0090] However, the generation of the Type-1 HARQ-ACK codebook is determined based on the K1 value in the HARQ feedback timing set. Different Type-1 HARQ-ACK codebooks generated with different K1 values ​​in the HARQ feedback timing set as reference may result in different codebooks. This could lead to inconsistencies in the understanding of the Type-1 HARQ-ACK codebook on the feedback time slot between terminal devices and network devices.

[0091] To address this issue, when the terminal device is not configured with a HARQ feedback timing set by the network device, the terminal device can determine the HARQ-ACK codebook based on the K1 value in the preset HARQ feedback timing set. When the terminal device is configured with a HARQ feedback timing set by the network device, the terminal device can determine the HARQ-ACK codebook based on the K1 value in the HARQ feedback timing set configured by the network device. If the terminal device determines the HARQ-ACK codebook based on the K1 value in the HARQ feedback timing indication information in the DCI format 1_0 that the terminal device does not expect the K1 value indicated by the received HARQ feedback timing indication information to not belong to the intersection of the preset HARQ feedback timing set and the configured HARQ feedback timing set.

[0092] For example, if the K1 value in the preset HARQ feedback timing set is {1,2,3,4,5,6,7,8}, and the K1 value in the configured HARQ feedback timing set is {4,6,14}, then the intersection of the preset and configured HARQ feedback timing sets is {4,6}. Accordingly, the terminal device expects the K1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be {4,6}. Alternatively, the terminal device does not expect the K1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be {1,2,3,5,7,8}.

[0093] Timing relationships of NR systems and enhancement of timing relationships of NTN systems

[0094] The timing relationships in the NR system are described below. The timing relationships in the NR system include HARQ feedback timing (or the transmission timing of HARQ-ACK information on the PUCCH). Specifically, if the end position of a PDSCH reception is in time slot n, or the end position of a PDCCH reception indicating the release of a semi-persistent scheduling (SPS) PDSCH is in time slot n, then the terminal device should transmit the corresponding HARQ-ACK information on the PUCCH resources within time slot n+K1. K1 represents the number of time slots. K1 can be indicated by the HARQ feedback timing indication information in the DCI format, or it can be provided by the HARQ feedback timing set. The HARQ feedback timing set can be configured, for example, by the parameter dl-DataToUL-ACK (corresponding to DCI format 1_1) or dl-DataToUL-ACK-ForDCIFormat1_2 (corresponding to DCI format 1_2). If K1 = 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.

[0095] As discussed earlier regarding NTN systems, they typically suffer from significant transmission delays. To overcome these delays, the timing relationships in NR systems need to be enhanced. A simple solution is to introduce an offset value (or offset parameter) into the system. This offset value can be represented by K. offset This indicates that the offset value can then be applied to the relevant timing relationships.

[0096] After enhancing the timing relationships of the NR system, the determination of the HARQ feedback timing (or the transmission timing of HARQ-ACK on PUCCH) of the NR system can be changed to: For the PUCCH transmission time slot, the terminal device should... offset The corresponding HARQ-ACK information is transmitted on the PUCCH resource within the system.

[0097] K in the NTN system offset Instructions and Updates

[0098] In an NTN system, network devices can use system messages to indicate K to terminal devices. offset Value. The K offset The value can be used to enhance the timing relationship of terminal devices during the initial access process.

[0099] As an example, K offset Values ​​can be used to enhance the temporal relationships involved in the following processes:

[0100] The uplink grant scheduling PUSCH in a random access response (RAR) or fallback random access response (RAR);

[0101] The DCI format of the temporary cell-radio network temporary identifier (TC-RNTI) scrambling code is used for PUSCH (message 3 (or simply Msg3) retransmission) scheduled by 0_0.

[0102] The PUSCH of the DCI format 0_0 scheduling for the cell-radio network temporary identifier (C-RNTI) scrambling code;

[0103] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0 of TC-RNTI scrambling code;

[0104] HARQ feedback corresponding to the PDSCH scheduled by DCI format 1_0 of C-RNTI scrambling; or

[0105] HARQ feedback corresponding to the successful random access response (successRAR).

[0106] After the terminal device enters the connected state (or RRC connected state), this K offset The value can be updated. For example, network devices can update K via RRC signaling or MAC CE. offset Value. This RRC signaling can be, for example, RRC configuration signaling or RRC reconfiguration signaling.

[0107] Updated K offset The value can be used to enhance temporal relationships. As an example, the updated K... offset Values ​​can be used to enhance the temporal relationships involved in the following processes:

[0108] C-RNTI, configured scheduling radio network temporary identifier (CS-RNTI) or modulation and coding scheme-cell radio network temporary identity (MCS-C-RNTI) scrambling code in DCI format 0_0 or DCI format 0_1 ​​or DCI format 0_2 scheduling PUSCH.

[0109] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0, DCI format 1_1, or DCI format 1_2 scrambling codes of C-RNTI, CS-RNTI, or MCS-C-RNTI.

[0110] As discussed earlier, for communication systems with significant latency (such as NTN systems), an offset value (such as K mentioned earlier) is typically introduced. offset This enhances the timing relationships within the communication system. In some cases, network devices may configure multiple offset values ​​for terminal devices. For example, a terminal device might receive one offset value during the initial access phase and another after entering the RRC connected state. Alternatively, a terminal device might receive multiple offset values, each corresponding to a different beam or a different synchronization signal block (SSB) index. Currently, there is no suitable solution for how the terminal device should determine the feedback time unit during HARQ feedback if it receives multiple offset values. If the terminal device and network device have inconsistent understandings of how to determine this feedback time unit, it will lead to inconsistent understandings of the HARQ-ACK codebook transmitted during that feedback time unit, resulting in communication errors.

[0111] Taking the HARQ-ACK codebook determination process as an example, in an NTN system, the terminal device may receive multiple offset values. For instance, the terminal device may receive an offset value indicated by the network device through system messages, or it may receive an 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 the HARQ-ACK codebook based on different offset values, resulting in the failure of HARQ-ACK codebook transmission.

[0112] To address the aforementioned issues, the embodiments of this application will be described in detail below.

[0113] Figure 3 This is a schematic flowchart of a wireless communication method provided in an embodiment of this application. Figure 3 The method is described from the perspective of the interaction between terminal devices and network devices. These terminal devices and network devices can be... Figures 1A to 1C The terminal device and network device shown are part of a communication system that utilizes offset values ​​to enhance timing relationships, such as the NTN system mentioned earlier.

[0114] In step S310, the terminal device receives the first DCI corresponding to the first DCI format.

[0115] 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.

[0116] 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.

[0117] In some embodiments, the first HARQ feedback timing may correspond to a first HARQ feedback timing set. Alternatively, the first HARQ feedback timing may belong to a 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.

[0118] In some embodiments, the first HARQ feedback timing set may be the HARQ feedback timing set corresponding to the first DCI.

[0119] In some embodiments, the first HARQ feedback timing set can be a preset HARQ feedback timing set. This preset HARQ feedback timing set can be, for example, {1,2,3,4,5,6,7,8}.

[0120] In some embodiments, the first DCI may include HARQ feedback timing indication information. This HARQ feedback timing indication information may indicate a first HARQ feedback timing within a first HARQ feedback timing set. For example, if the first HARQ feedback timing set is {1,2,3,4,5,6,7,8}, the value of the first HARQ feedback timing K1 indicated by the HARQ feedback timing indication information in the first DCI can be one of the values ​​in {1,2,3,4,5,6,7,8}.

[0121] In step S320, the terminal device determines the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value.

[0122] In some embodiments, the first target offset value may be determined based on either a first offset value or a 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.

[0123] In some embodiments, the first offset value and / or the second offset value may be offset values ​​configured by the network device for the terminal device. The first offset value and / or the second offset value can be used for timing relationship enhancement. For example, the first offset value and / or the second offset value can be used to enhance the timing relationship of systems with large transmission delays (such as NTN).

[0124] In some embodiments, the first offset value may be determined based on first indication information sent by the network device. Alternatively, the first offset value may be indicated by the first indication information. As an example, the first indication information may be carried in a system message sent by the network device. This system message may, for example, be a system information block (SIB) message. In other words, the first offset value may be determined based on a system message.

[0125] In some embodiments, the time unit indicated by the first indication information can be a time unit based on a first subcarrier spacing (SCS). This time unit based on the first SCS can, for example, include one or more sub-slots based on the first SCS, one or more slots based on the first SCS, or one or more symbols based on the first SCS. The first SCS can be a reference SCS. The first SCS can be preset (e.g., protocol predefined) or configured by the network device.

[0126] In other embodiments, the time unit indicated by the first indication information may be one of the following: subframe, frame, millisecond, and second.

[0127] The time unit of the first offset value can be a time unit based on a second SCS. This 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. Another example is that the second SCS is the larger of the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI. Yet another example is that the second SCS is the smaller of the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI. The second SCS can be the same as or different from the first SCS mentioned above. The time unit based on the second SCS can, for example, include one or more sub-slots based on the second SCS, one or more time slots based on the second SCS, or one or more symbols based on the second SCS.

[0128] 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 the first indication information indicates 10ms, if the second SCS is 15kHz, the first offset value is 10 time slots; if the second SCS is 30kHz, the first offset value is 20 time slots.

[0129] In some embodiments, the second offset value may be determined based on second indication information sent by the network device. Alternatively, the second offset value may be indicated by the 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, for example, be RRC configuration signaling or RRC reconfiguration signaling.

[0130] In some embodiments, the time unit indicated by the second indication information can be a time unit based on the first SCS. This time unit based on the first SCS can include, for example, one or more sub-slots based on the first SCS, one or more time slots based on the first SCS, or one or more symbols based on the first SCS. The first SCS can be a reference SCS. The first SCS can be preset (e.g., protocol predefined) or configured by the network device.

[0131] In other embodiments, the time unit indicated by the second indication information may be one of the following: subframe, frame, millisecond, and second.

[0132] The time unit of the second offset value can be a time unit based on the second SCS. This 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. Another example is that the second SCS is the larger of the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI. Yet another example is that the second SCS is the smaller of the SCS corresponding to the first feedback time unit and the SCS corresponding to the first DCI. The second SCS can be the same as or different from the first SCS mentioned above. The time unit based on the second SCS can, for example, include one or more sub-slots based on the second SCS, one or more time slots based on the second SCS, or one or more symbols based on the second SCS.

[0133] 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 that second indication information may be different. For example, assuming the second indication information indicates 10ms, if the second SCS is 15kHz, the second offset value is 10 time slots; if the second SCS is 30kHz, the second offset value is 20 time slots.

[0134] 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 the offset value received by the terminal device from the network device during the initial access phase. After the terminal device enters the RRC connected state, the network device can send an updated value of the first offset value, i.e., the second offset value, to the terminal device.

[0135] In some embodiments, the first offset value corresponds to a first SSB index, and / or the second offset value corresponds to a second SSB index.

[0136] 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.

[0137] In some embodiments, the first target offset value can 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 can be used by the terminal device to determine uplink timing during random access. For instance, in this embodiment, the first target offset value can be determined based on a first offset value. Alternatively, in this embodiment, the first target offset value can be a first offset value.

[0138] As an example and not a limitation, the first target offset value determined based on the first offset value can be used to enhance at least one temporal relationship involved in the following process:

[0139] PUSCH for uplink grant scheduling in RAR or fallbackRAR;

[0140] PUSCH of DCI format 0_0 scheduling with TC-RNTI scrambling code;

[0141] C-RNTI scrambling code DCI format 0_0 scheduled PUSCH;

[0142] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0 of TC-RNTI scrambling code;

[0143] HARQ feedback corresponding to the PDSCH scheduled by DCI format 1_0 of C-RNTI scrambling; or

[0144] HARQ feedback corresponding to successRAR.

[0145] In some embodiments, the first target offset value can be used by the terminal device to determine uplink timing for uplink transmission in RRC connected state. For example, in this embodiment, the first target offset value may be determined based on a second offset value. Alternatively, in this embodiment, the first target offset value may be the second offset value.

[0146] As an example and not a limitation, the first target offset value determined based on the second offset value can be used to enhance at least one temporal relationship involved in the following process:

[0147] PUSCH scheduled with DCI format 0_0, DCI format 0_1, or DCI format 0_2 scrambling codes of C-RNTI, CS-RNTI, or MCS-C-RNTI.

[0148] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0, DCI format 1_1, or DCI format 1_2 scrambling codes of C-RNTI, CS-RNTI, or MCS-C-RNTI.

[0149] In some embodiments, the first target offset value can be used by the terminal device to determine uplink timing for uplink transmissions in the corresponding fallback DCI format (e.g., DCI format 1_0 and / or DCI format 0_0). Here, the first target offset value is determined based on a first offset value, or the first target offset value is simply the first offset value. That is, regardless of whether the terminal device is in the initial access process or in the RRC connection state, when the terminal device receives an uplink transmission schedule for the corresponding DCI format 1_0 and / or DCI format 0_0, the terminal device always determines the corresponding uplink timing based on the first target offset value determined by the first offset value.

[0150] As an example and not a limitation, in this case, the first target offset value determined based on the first offset value can be used to enhance at least one temporal relationship involved in the following process:

[0151] PUSCH scheduled in DCI format 0_0 with C-RNTI, CS-RNTI or MCS-C-RNTI scrambling codes;

[0152] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0 with C-RNTI, CS-RNTI or MCS-C-RNTI scrambling codes.

[0153] In some embodiments, the second target offset value can be used by the terminal device to determine uplink timing for uplink transmissions in corresponding non-back-off DCI formats (e.g., at least one of DCI format 1_1, DCI format 1_2, DCI format 0_1, and DCI format 0_2). For example, in this embodiment, the second target offset value can be determined based on a second offset value. Alternatively, in this embodiment, the second target offset value can be a second offset value. That is, when the terminal device receives an uplink transmission schedule for a corresponding non-back-off DCI format, the terminal device always determines the corresponding uplink timing based on the second target offset value determined by the second offset value.

[0154] As an example and not a limitation, in this case, the second target offset value determined based on the second offset value can be used to enhance at least one temporal relationship involved in the following process:

[0155] PUSCH scheduled with DCI format 0_1 ​​or DCI format 0_2 scrambling of C-RNTI, CS-RNTI or MCS-C-RNTI scrambling codes.

[0156] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_1 or DCI format 1_2 scrambling of C-RNTI, CS-RNTI or MCS-C-RNTI scrambling codes.

[0157] In some embodiments, the first target offset value may correspond to a first DCI format. Alternatively, the first target offset value can 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 in the first DCI format can be determined based on the first target offset value and the K1 value. The K1 value mentioned here can 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 K1 value can be one of 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 can be determined based on the sum of the first offset value and the K1 value.

[0158] In some embodiments, the second target offset value may correspond to a second DCI format. Alternatively, the second target offset value can 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 can be determined based on the second target offset value and the K1' value. The K1' value mentioned here can be a value in the second HARQ feedback timing set.

[0159] In some embodiments, the time unit of the first feedback time unit can be a time unit based on a second SCS (such as 15 kHz or 30 kHz). The time unit of the first feedback time unit can be, for example, one or more sub-slots, one or more time slots, or one or more symbols.

[0160] The first feedback time unit can be the time unit for transmitting the first HARQ-ACK codebook. Therefore, in some embodiments, Figure 3 The method may further include step S330: the terminal device sends a first HARQ-ACK codebook on the first feedback time unit (or through feedback resources on 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.

[0161] In some embodiments, the first feedback time unit is associated with a second HARQ feedback timing set and / or a second target offset value. This association may mean that the candidate physical channel reception opportunity corresponding to the first feedback time unit can be determined based on the second HARQ feedback timing set and / or the second target offset value. As an example, the candidate physical channel reception opportunity corresponding to the first feedback time unit can be based on n-K1'-K offset2 Determined. Here, n represents the first feedback time unit (e.g., time slot n), K1' can be a value (or time slot offset value) in the second HARQ feedback timing set, K... offset2 This represents the offset value of the second target.

[0162] The candidate physical channel corresponding to the first feedback time unit may include, for example, PDSCH and / or PDCCH indicating the release of SPS PDSCH.

[0163] In some embodiments, the second HARQ feedback timing set may be the HARQ feedback timing set corresponding to the second DCI format.

[0164] In some embodiments, the second HARQ feedback timing set can be a configured HARQ feedback timing set. Alternatively, the K1 value in the second HARQ feedback timing set can be configured. "Configured" can refer to network device configuration. For example, the network device can be configured via higher-layer signaling (such as RRC signaling). As an example, the K1 value in the second HARQ feedback timing set configured by the network device is selected from the following range: 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 can be {2, 4, 5}.

[0165] 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.

[0166] In some embodiments, the second DCI format includes one DCI format. For example, the second DCI format includes only DCI format 1_1, or the second DCI format includes DCI format 1_1 but does not include DCI format 1_2, then the second HARQ feedback timing set can be the configured HARQ feedback timing set corresponding to DCI format 1_1.

[0167] In some embodiments, the second DCI format includes one DCI format. For example, the second DCI format may include only DCI format 1_2, or the second DCI format may include DCI format 1_2 but not DCI format 1_1. In this case, the second HARQ feedback timing set may be the configured HARQ feedback timing set corresponding to DCI format 1_2.

[0168] In some embodiments, the second DCI format includes two DCI formats. For example, if the second DCI format includes DCI format 1_1 and DCI format 1_2, then the second HARQ feedback timing set can 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, if the network device configures the HARQ feedback timing set corresponding to DCI format 1_1 for the terminal device as {5,10,14}, and the configured HARQ feedback timing set corresponding to DCI format 1_2 as {2,4}, then the second HARQ feedback timing set is {2,4,5,10,14}.

[0169] It should be understood that if the second DCI format includes more DCI formats, the method for determining the second HARQ feedback timing set can be similar to the method for determining the second DCI format when it includes two DCI formats, and will not be elaborated here.

[0170] In some embodiments, the second target offset value is determined based on a second offset value. As an example, the second target offset value can be a second offset value.

[0171] In some embodiments, the second target offset value can be used by the terminal device to determine uplink timing for uplink transmission in RRC connected state.

[0172] As an example and not a limitation, the second target offset or second offset value can be used to enhance at least one temporal relationship involved in the following process:

[0173] PUSCH scheduled with DCI format 0_0, DCI format 0_1, or DCI format 0_2 scrambling of C-RNTI, CS-RNTI, or MCS-C-RNTI scrambling codes.

[0174] HARQ feedback corresponding to PDSCH scheduled by DCI format 1_0, DCI format 1_1, or DCI format 1_2 scrambling codes of C-RNTI, CS-RNTI, or MCS-C-RNTI.

[0175] In some embodiments, the second target offset value may correspond to a second DCI format. Alternatively, the second target offset value can 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 of the second DCI schedule using the second DCI format can be determined based on the second target offset value and the K1' value. The K1' 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 K1' value can be one of 2, 4, and 5. As a more specific example, the feedback time unit or HARQ feedback resource corresponding to the PDSCH of the second DCI schedule using the second DCI format can be determined based on the sum of the second target offset value and the K1' value.

[0176] As mentioned earlier, the first feedback time unit can be used to transmit the first HARQ-ACK codebook. The first HARQ-ACK codebook can correspond to a HARQ feedback window. The candidate physical channel reception opportunity corresponding to the first feedback time unit can refer to the candidate physical channel reception opportunity within the HARQ feedback window. That is, the first HARQ-ACK codebook can include the HARQ-ACK information corresponding to the candidate physical channel reception opportunities within the HARQ feedback window. Therefore, in this embodiment, the previously described "the candidate physical channel reception 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" can be understood as: "the first HARQ-ACK codebook is determined according to the second target offset value and the second HARQ feedback timing set".

[0177] In some embodiments, the first target offset value is determined based on the first offset value before the terminal device is configured with the second offset value or with the second HARQ feedback timing set.

[0178] In some embodiments, after the terminal device is configured with a second offset value or a second HARQ feedback timing set, the first target offset value is determined based on the second offset value.

[0179] 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 before the terminal device receives the second indication information indicating the second offset value and / or is configured with the second HARQ feedback timing set, the terminal device may determine the first HARQ-ACK codebook based on the first offset value and the first HARQ feedback timing set.

[0180] As mentioned earlier, 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. The values ​​of the first and second HARQ feedback timing sets may differ by at least one value; that is, the HARQ feedback timing sets corresponding to different DCI formats may be different. Furthermore, as also mentioned earlier, the first offset value can be the offset value used by the terminal device during the initial access process, and the second offset value can be the offset value used by the terminal device in the RRC connection state. Therefore, the offset values ​​used by the terminal device in the initial access state and the RRC connection state may also be different. Both the difference in the HARQ feedback timing set and the difference in the offset value will lead to a different first HARQ-ACK codebook.

[0181] To address this issue, the embodiments of this application explicitly specify the method for generating the first HARQ-ACK codebook of the terminal device, thereby avoiding communication errors caused by inconsistent understanding of the first HARQ-ACK codebook between the network device and the terminal device.

[0182] The following is combined with Figure 4 Here is a specific example.

[0183] like Figure 4 As shown, the second HARQ feedback timing set configured by the network device for the terminal device includes three K1' values, {2, 4, 5}. Furthermore, in Figure 4 In the example, the first feedback time unit is Figure 4 The time slot n in the time slot. The PUCCH feedback resource in time slot n can be used to feed back the first HARQ-ACK codebook. Figure 4 K in offset2 This represents the second target offset value. The time slot corresponding to the candidate PDSCH receiving opportunity of the first feedback time unit can include time slot n-5-K. offset2 Time slot n-4-K offset2 and time slot n-2-K offset2 .

[0184] Therefore, the first HARQ-ACK codebook for the PUCCH feedback resource transmission on slot n may include slot n-5-K. offset2 Time slot n-4-K offset2and time slot n-2-K offset2 The HARQ-ACK information corresponding to the PDSCH received above.

[0185] Assuming one downlink time slot corresponds to one candidate PDSCH reception opportunity (e.g., the terminal device does not indicate the ability to receive multiple unicast PDSCHs within one time slot), and one PDSCH reception corresponds to 1 bit of HARQ-ACK information, then the first HARQ-ACK codebook may include 3 bits. The first HARQ-ACK codebook may, for example, take the following form:

[0186]

[0187] As mentioned earlier, the first DCI format corresponds to the first HARQ feedback timing set. Therefore, the first HARQ feedback timing corresponding to the first DCI format can 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 want the first HARQ feedback timing to conflict with the HARQ feedback window corresponding to the first HARQ-ACK codebook. The concept of a first set is introduced below to address this issue.

[0188] In some embodiments, the first HARQ feedback timing sequence may correspond to a first set. The first set may be determined based on at least one of the following: a first HARQ feedback timing sequence set, a second HARQ feedback timing sequence set, a first target offset value, and a second target offset value.

[0189] In some embodiments, the first set may be the intersection of the second and third sets; or, the first set may be the difference between the intersection of the second and third sets and the first target offset value. The second set may be determined based on the first target offset value and a first HARQ feedback timing set. 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 a second HARQ feedback timing set. 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.

[0190] The first HARQ feedback timing corresponding to the first set can mean that the first HARQ feedback timing is related to the values ​​in the first set.

[0191] 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 being a value in the first set. That is, it is desirable for the terminal device that the sum of the first HARQ feedback timing and the first target offset value is a value in the first set; or it is undesirable for the terminal device that the sum of the first HARQ feedback timing and the first target offset value is not a value in the first set. For example, when the first set is the intersection of the second set and the third set, the terminal device desires the sum of the first HARQ feedback timing and the first target offset value to be a value in the first set; or, the terminal device does not desire the sum of the first HARQ feedback timing and the first target offset value to be a value in the first set.

[0192] As a concrete example, the first DCI is DCI format 1_0, and the first HARQ feedback timing set is the 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}. offset1 K represents the offset value of the first target, and K offset1 It has 30 time slots; K offset2 This represents the offset value of the second target, and K offset2 There are 20 time slots. K1 represents the first HARQ feedback timing, which is indicated by the HARQ feedback timing indication information in the first DCI. In this example, the second set can be the values ​​in the first HARQ feedback timing set and K. offset1 The sum of these values, i.e., the second set can be {31,32,33,34,35,36,37,38}; the third set can be the sum of the values ​​in the second HARQ feedback time series set and K. offset2 The sum of these sets, i.e., the third set, can be {24, 26, 34}. The first set can be the intersection of the second and third sets, i.e., the first set can be {34}. Accordingly, the terminal device expects K1 and K... offset1 The sum of these values ​​is the value in the first set, that is, the K1 value indicated by the HARQ feedback timing indication information in the DCI format 1_0 that the terminal expects is {4}. Thus, K1 and K... offset1 The sum is 34, and 34 belongs to the first set. Alternatively, the terminal device does not expect K1 and K... offset1 The sum of these values ​​is not a value in the first set, meaning the terminal does not expect the K1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be {1,2,3,5,6,7,8}, because these K1 values ​​are not in the first set. offset1 The sum of these values ​​is {31,32,33,35,36,37,38}, none of which belong to the first set.

[0193] As another concrete 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. Assuming the network device is configured with a HARQ feedback timing set corresponding to DCI format 1_1 as {5,10,14}, and the network device is configured with a HARQ feedback timing set corresponding to DCI format 1_2 as {2,4}, then the second HARQ feedback timing set can be the union of the HARQ feedback timing sets {5,10,14} and {2,4}, that is, the second HARQ feedback timing set can be {2,4,5,10,14}. offset1 K represents the offset value of the first target, and K offset1 It has 30 time slots; K offset2 Indicates the offset value of the second target, and K offset2 There are 20 time slots. K1 represents the first HARQ feedback timing, which is indicated by the HARQ feedback timing indication information in the first DCI. In this example, the second set can be the values ​​in the first HARQ feedback timing set and K. offset1 The sum of these values, i.e., the second set can be {31,32,33,34,35,36,37,38}; the third set can be the sum of the values ​​in the second HARQ feedback time series set and K. offset2 The sum of these sets, i.e., the third set, can be {22, 24, 25, 30, 34}. The first set can be the intersection of the second and third sets, i.e., the first set can be {34}. Accordingly, the terminal device expects K1 and K... offset1 The sum of these values ​​is the value in the first set, that is, the K1 value indicated by the HARQ feedback timing indication information in the DCI format 1_0 expected by the terminal is {4}. Thus, K1 and K... offset1 The sum is 34, and 34 belongs to the first set. Alternatively, the terminal device does not expect K1 and K... offset1 The sum of these values ​​is not a value in the first set, meaning the terminal does not expect the K1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be {1,2,3,5,6,7,8}, because these K1 values ​​are not in the first set. offset1 The sum is {31,32,33,35,36,37,38}, none of which belong to the first set.

[0194] In some embodiments, the first HARQ feedback timing corresponding to the first set may include: the first HARQ feedback timing being a value in the first set. That is, the terminal device expects the first HARQ feedback timing to be a value in the first set; or the terminal device does not expect the first HARQ feedback timing to be 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 a value in the first set; or, the terminal device does not expect the first HARQ feedback timing to be a value in the first set.

[0195] For example, the first DCI is DCI format 1_0, and the first HARQ feedback timing set is the 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}. offset1 K represents the offset value of the first target, and K offset1 It has 70 time slots; K offset2 Indicates the offset value of the second target, and K offset2 There are 60 time slots. K1 represents the first HARQ feedback timing, which is indicated by the HARQ feedback timing indication information in the first DCI. In this example, the second set can be the values ​​in the first HARQ feedback timing set and K. offset1 The sum of these values, i.e., the second set can be {71,72,73,74,75,76,77,78}; the third set can be the sum of the values ​​in the second HARQ feedback timing set and K. offset2 The sum of these sets, i.e., the third set, can be {64, 66, 74}. The first set can be the intersection of the second and third sets plus K. offset1 The difference, i.e., the first set can be {4}. Accordingly, the terminal device expects K1 to be a value in the first set, that is, the terminal expects the K1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be {4}. Alternatively, the terminal device does not expect the K1 indicated by the HARQ feedback timing indication information in DCI format 1_0 to be a value other than the first set, that is, the terminal does not expect the received K1 value to be {1,2,3,5,6,7,8}.

[0196] 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. Assuming the network device is configured with a HARQ feedback timing set of DCI format 1_1 corresponding to {5,10,14}, and the network device is configured with a HARQ feedback timing set of DCI format 1_2 corresponding to {2,4}, then the second HARQ feedback timing set can be the union of the HARQ feedback timing sets {5,10,14} and {2,4}, that is, the second HARQ feedback timing set can be {2,4,5,10,14}. offset1 K represents the offset value of the first target, and K offset1 It has 70 time slots; K offset2 This represents the offset value of the second target, and K offset2 There are 60 time slots. K1 represents the first HARQ feedback timing, which is indicated by the HARQ feedback timing indication information in the first DCI. In this example, the second set can be the values ​​in the first HARQ feedback timing set and K. offset1 The sum of these values, i.e., the second set can be {71,72,73,74,75,76,77,78}; the third set can be the sum of the values ​​in the second HARQ feedback timing set and K. offset2 The sum of these sets, i.e., the third set, can be {62, 64, 65, 70, 74}. The first set can be the intersection of the second and third sets plus K. offset1 The difference, i.e., the first set can be {4}. Accordingly, the terminal device expects K1 to be a value in the first set, that is, the terminal expects the K1 value indicated by the HARQ feedback timing indication information in DCI format 1_0 to be {4}. Alternatively, the terminal device does not expect the K1 indicated by the HARQ feedback timing indication information in DCI format 1_0 to be a value other than the first set, that is, the terminal does not expect the received K1 value to be {1,2,3,5,6,7,8}.

[0197] In some embodiments, the first target offset value may be determined based on the first offset value before the terminal device is configured with the second offset value or the second HARQ feedback timing set; and / or the first target offset value may be determined based on the second offset value after the terminal device is configured with the second offset value or the second HARQ feedback timing set. 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.

[0198] As a concrete example, during the initial access phase, the terminal device obtains a first offset value through system messages sent by the network device and determines a first target offset value based on this first offset value (e.g., using the first offset value as the first target offset value). After entering the RRC connected state, the terminal device obtains a second offset value through RRC signaling or MAC CE sent by the network device. In this case, the terminal device determines a second target offset value based on the second offset value (e.g., using the second offset value as the second target offset value). Alternatively, after the terminal device obtains the second HARQ feedback timing set configured by the network device, the terminal device determines a second target offset value based on the second offset value (e.g., using the second offset value as the second target offset value).

[0199] The above text, in conjunction with Figures 1 to 12, shows... Figure 4 The method embodiments of this application are described in detail below, in conjunction with... Figures 5 to 7 The present application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0200] Figure 5 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application. Figure 5 The terminal device 500 shown may include a receiving unit 510 and a determining unit 520.

[0201] The receiving unit 510 can be used to receive a first DCI corresponding to a first DCI format, wherein the first DCI corresponds to a first HARQ feedback timing.

[0202] The determining unit 520 can be used to determine the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value, wherein the first HARQ feedback timing corresponds to the 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 based on the first offset value or the second offset value.

[0203] Optionally, the first feedback time unit is associated with the second HARQ feedback timing set and / or the second target offset value, wherein the second HARQ feedback timing set is the HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined based on the second offset value.

[0204] Optionally, 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 reception opportunity corresponding to the first feedback time unit is determined based on the second HARQ feedback timing set and / or the second target offset value.

[0205] Optionally, the first HARQ feedback timing corresponds to a first set, wherein the first set is determined based on 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.

[0206] 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 timing set.

[0207] 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.

[0208] Optionally, the first HARQ feedback timing corresponds to a first set, including: the sum of the first HARQ feedback timing and the first target offset value is a value in the first set.

[0209] Optionally, the first set is the intersection of the second set and the third set.

[0210] Optionally, the first HARQ feedback timing corresponds to a first set, including: the first HARQ feedback timing is a value in the first set.

[0211] Optionally, the first set is the difference between the intersection of the second set and the third set and the first target offset value.

[0212] 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.

[0213] Optionally, the first DCI corresponds to the first HARQ feedback timing, including: the HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.

[0214] Optionally, the first target offset value is determined based on the first offset value before the terminal device is configured with the second offset value or with the second HARQ feedback timing set; and / or, the first target offset value is determined based on the second offset value after the terminal device is configured with the second offset value or with the second HARQ feedback timing set.

[0215] Optionally, the first target offset value is determined based on the first offset value.

[0216] Optionally, the first target offset value is used by the terminal device to determine the 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 the uplink timing for uplink transmission in the RRC connected state.

[0217] 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.

[0218] Optionally, the first offset value is determined based on the first indication information sent by the network device; and / or, the second offset value is determined based on the second indication information sent by the network device.

[0219] Optionally, the first indication information is carried in a system message sent by the network device.

[0220] Optionally, the second indication information is carried in the RRC signaling or MAC CE sent by the network device.

[0221] 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.

[0222] Optionally, the first SCS is preset or configured by the network device.

[0223] 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.

[0224] 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.

[0225] Optionally, a time unit can be one of the following: one or more sub-slots, one or more time slots, or one or more symbols.

[0226] Optionally, the terminal device 500 further includes: a sending unit, configured to send a first HARQ-ACK codebook during the first feedback time unit.

[0227] Figure 6 This is a schematic diagram of the network device provided in the embodiments of this application. Figure 6 The terminal device 600 shown may include a sending unit 610 and a determining unit 620.

[0228] The transmitting unit 610 can be used to transmit a first DCI corresponding to a first DCI format, and the first DCI corresponds to a first HARQ feedback timing.

[0229] The determining unit 620 can be used to determine the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value, wherein the first HARQ feedback timing corresponds to the 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 based on the first offset value or the second offset value.

[0230] Optionally, the first feedback time unit is associated with the second HARQ feedback timing set and / or the second target offset value, wherein the second HARQ feedback timing set is the HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined based on the second offset value.

[0231] Optionally, 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 reception opportunity corresponding to the first feedback time unit is determined based on the second HARQ feedback timing set and / or the second target offset value.

[0232] Optionally, the first HARQ feedback timing corresponds to a first set, wherein the first set is determined based on 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.

[0233] 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 timing set.

[0234] 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.

[0235] Optionally, the first HARQ feedback timing corresponds to a first set, including: the sum of the first HARQ feedback timing and the first target offset value is a value in the first set.

[0236] Optionally, the first set is the intersection of the second set and the third set.

[0237] Optionally, the first HARQ feedback timing corresponds to a first set, including: the first HARQ feedback timing is a value in the first set.

[0238] Optionally, the first set is the difference between the intersection of the second set and the third set and the first target offset value.

[0239] 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.

[0240] Optionally, the first DCI corresponds to the first HARQ feedback timing, including: the HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.

[0241] Optionally, the first target offset value is determined based on the first offset value before the terminal device is configured with the second offset value or with the second HARQ feedback timing set; and / or, the first target offset value is determined based on the second offset value after the terminal device is configured with the second offset value or with the second HARQ feedback timing set.

[0242] Optionally, the first target offset value is determined based on the first offset value.

[0243] Optionally, the first target offset value is used by the terminal device to determine the 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 the uplink timing for uplink transmission in the RRC connected state.

[0244] 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.

[0245] Optionally, the first offset value is determined based on the first indication information sent by the network device; and / or, the second offset value is determined based on the second indication information sent by the network device.

[0246] Optionally, the first indication information is carried in a system message sent by the network device.

[0247] Optionally, the second indication information is carried in the RRC signaling or MAC CE sent by the network device.

[0248] 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.

[0249] Optionally, the first SCS is preset or configured by the network device.

[0250] 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.

[0251] 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.

[0252] Optionally, a time unit can be one of the following: one or more sub-slots, one or more time slots, or one or more symbols.

[0253] Optionally, the network device 600 may further include: a receiving unit, configured to receive a first HARQ-ACK codebook during the first feedback time unit.

[0254] Figure 7 This is a schematic structural diagram of an online training apparatus according to an embodiment of this application. Figure 7The dashed lines indicate that the unit or module is optional. The device 700 can be used to implement the methods described in the above method embodiments. The device 700 can be a chip, a terminal device, or a network device.

[0255] Apparatus 700 may include one or more processors 710. The processor 710 may support apparatus 600 in implementing the methods described in the preceding 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 (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0256] The apparatus 700 may also include one or more memories 720. The memories 720 store a program that can be executed by the processor 710, causing the processor 710 to perform the methods described in the preceding method embodiments. The memories 720 may be independent of the processor 710 or integrated within the processor 710.

[0257] The device 700 may also include a transceiver 730. The processor 710 can communicate with other devices or chips via the transceiver 730. For example, the processor 710 can send and receive data with other devices or chips via the transceiver 730.

[0258] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal device or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal device or network device in the various embodiments of this application.

[0259] This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal device or network device provided in the embodiments of this application, and the program causes a computer to execute the methods performed by the terminal device or network device in the various embodiments of this application.

[0260] This application also provides a computer program. This computer program can be applied to the terminal device or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal device or network device in various embodiments of this application.

[0261] It should be understood that in the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0262] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0263] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0264] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0265] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0266] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially 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 a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

Claims

1. A method for wireless communication, characterized in that, include: The terminal device receives a first DCI in a format corresponding to the first downlink control information DCI, and the first DCI corresponds to the first hybrid automatic repeat request (HARQ) feedback timing. The terminal device determines the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value. Wherein, the first HARQ feedback timing corresponds to the 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 based on the first offset value or the second offset value; The first feedback time unit is associated with the second HARQ feedback timing set and / or the second target offset value. The second HARQ feedback timing set is the HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined based on the second offset value.

2. The method according to claim 1, characterized in that, 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 reception opportunity corresponding to the first feedback time unit is determined based on the second HARQ feedback timing set and / or the second target offset value.

3. The method according to claim 1, characterized in that, The first HARQ feedback timing corresponds to a first set, wherein the first set is determined based on 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.

4. The method according to claim 3, characterized in that, 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; 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 timing set.

5. The method according to claim 4, characterized in that, 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.

6. The method according to claim 3, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The sum of the first HARQ feedback timing and the first target offset value is the value in the first set.

7. The method according to claim 6, characterized in that, The first set is the intersection of the second set and the third set.

8. The method according to claim 3, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The first HARQ feedback timing is a value from the first set.

9. The method according to claim 8, characterized in that, The first set is the difference between the intersection of the second set and the third set and the first target offset value.

10. The method according to claim 1, characterized in that, The second HARQ feedback timing set is the 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.

11. The method according to any one of claims 1-10, characterized in that, The first DCI corresponds to the first HARQ feedback timing, including: the HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.

12. The method according to any one of claims 1-10, characterized in that, Before the terminal device is configured with the second offset value or with the second HARQ feedback timing set, the first target offset value is determined based on 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 based on the second offset value.

13. The method according to any one of claims 1-10, characterized in that, The first target offset value is determined based on the first offset value.

14. The method according to any one of claims 1-10, characterized in that, The first target offset value is used by the terminal device to determine the 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 the uplink timing for uplink transmission in the Radio Resource Control (RRC) connected state.

15. The method according to any one of claims 1-10, characterized in that, The first HARQ feedback timing set is a preset HARQ feedback timing set; and / or, The first DCI format includes DCI format 1_0.

16. The method according to any one of claims 1-10, characterized in that, The first offset value is determined based on the first indication information sent by the network device; and / or, The second offset value is determined based on the second indication information sent by the network device.

17. The method according to claim 16, characterized in that, The first indication information is carried in a system message sent by the network device.

18. The method according to claim 16, characterized in that, The second indication information is carried in the RRC signaling or Media Access Control (MAC) control element CE sent by the network device.

19. The method according to claim 16, characterized in that, 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 is one of subframe, frame, millisecond, and second; and / or, The time unit indicated by the second indication information is based on the time unit of the first SCS, or the time unit indicated by the second indication information is one of subframe, frame, millisecond, and second.

20. The method according to claim 19, characterized in that, The first SCS is preset or configured by the network device.

21. The method according to any one of claims 1-10, characterized in that, The time unit of the first offset value is based on the time unit of 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.

22. The method according to claim 21, characterized in that, 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.

23. The method according to claim 21, characterized in that, A time unit is one of the following: one or more sub-slots, one or more slots, or one or more symbols.

24. The method according to any one of claims 1-10, characterized in that, The method further includes: The terminal device sends a first hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook during the first feedback time unit.

25. A method for wireless communication, characterized in that, include: The network device sends a first DCI in the format of the first downlink control information (DCI), and the first DCI corresponds to the timing sequence of the first hybrid automatic repeat request (HARQ). The network device determines the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value. Wherein, the first HARQ feedback timing corresponds to the 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 based on the first offset value or the second offset value; The first feedback time unit is associated with the second HARQ feedback timing set and / or the second target offset value. The second HARQ feedback timing set is the HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined based on the second offset value.

26. The method according to claim 25, characterized in that, 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 reception opportunity corresponding to the first feedback time unit is determined based on the second HARQ feedback timing set and / or the second target offset value.

27. The method according to claim 25, characterized in that, The first HARQ feedback timing corresponds to a first set, wherein the first set is determined based on 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.

28. The method according to claim 27, characterized in that, 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; 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 timing set.

29. The method according to claim 28, characterized in that, 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.

30. The method according to claim 27, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The sum of the first HARQ feedback timing and the first target offset value is the value in the first set.

31. The method according to claim 30, characterized in that, The first set is the intersection of the second set and the third set.

32. The method according to claim 27, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The first HARQ feedback timing is a value from the first set.

33. The method according to claim 32, characterized in that, The first set is the difference between the intersection of the second set and the third set and the first target offset value.

34. The method according to claim 25, characterized in that, The second HARQ feedback timing set is the 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.

35. The method according to any one of claims 25-34, characterized in that, The first DCI corresponds to the first HARQ feedback timing, including: the HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.

36. The method according to any one of claims 25-34, characterized in that, Before the terminal device is configured with the second offset value or with the second HARQ feedback timing set, the first target offset value is determined based on 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 based on the second offset value.

37. The method according to any one of claims 25-34, characterized in that, The first target offset value is determined based on the first offset value.

38. The method according to any one of claims 25-34, characterized in that, The first target offset value is used by the terminal device to determine the 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 the uplink timing for uplink transmission in the Radio Resource Control (RRC) connected state.

39. The method according to any one of claims 25-34, characterized in that, The first HARQ feedback timing set is a preset HARQ feedback timing set; and / or, The first DCI format includes DCI format 1_0.

40. The method according to any one of claims 25-34, characterized in that, The first offset value is determined based on the first indication information sent by the network device; and / or, The second offset value is determined based on the second indication information sent by the network device.

41. The method according to claim 40, characterized in that, The first indication information is carried in a system message sent by the network device.

42. The method according to claim 40, characterized in that, The second indication information is carried in the RRC signaling or Media Access Control (MAC) control element CE sent by the network device.

43. The method according to claim 40, characterized in that, 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 is one of subframe, frame, millisecond, and second; and / or, The time unit indicated by the second indication information is based on the time unit of the first SCS, or the time unit indicated by the second indication information is one of subframe, frame, millisecond, and second.

44. The method according to claim 43, characterized in that, The first SCS is preset or configured by the network device.

45. The method according to any one of claims 25-34, characterized in that, The time unit of the first offset value is based on the time unit of 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.

46. ​​The method according to claim 45, characterized in that, 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.

47. The method according to claim 43, characterized in that, A time unit is one of the following: one or more sub-slots, one or more slots, or one or more symbols.

48. The method according to any one of claims 25-34, characterized in that, The method further includes: The network device receives the first Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) codebook during the first feedback time unit.

49. A terminal device, characterized in that, include: The receiving unit is configured to receive a first DCI in a format corresponding to the first downlink control information DCI, wherein the first DCI corresponds to the first hybrid automatic repeat request (HARQ) feedback timing. The determining unit is configured to determine the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value. Wherein, the first HARQ feedback timing corresponds to the 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 based on the first offset value or the second offset value; The first feedback time unit is associated with the second HARQ feedback timing set and / or the second target offset value. The second HARQ feedback timing set is the HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined based on the second offset value.

50. The terminal device according to claim 49, characterized in that, 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 reception opportunity corresponding to the first feedback time unit is determined based on the second HARQ feedback timing set and / or the second target offset value.

51. The terminal device according to claim 49, characterized in that, The first HARQ feedback timing corresponds to a first set, wherein the first set is determined based on 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.

52. The terminal device according to claim 51, characterized in that, 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; 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 timing set.

53. The terminal device according to claim 52, characterized in that, 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.

54. The terminal device according to claim 51, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The sum of the first HARQ feedback timing and the first target offset value is the value in the first set.

55. The terminal device according to claim 54, characterized in that, The first set is the intersection of the second set and the third set.

56. The terminal device according to claim 51, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The first HARQ feedback timing is a value from the first set.

57. The terminal device according to claim 56, characterized in that, The first set is the difference between the intersection of the second set and the third set and the first target offset value.

58. The terminal device according to claim 49, characterized in that, The second HARQ feedback timing set is the 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.

59. The terminal device according to any one of claims 49-58, characterized in that, The first DCI corresponds to the first HARQ feedback timing, including: the HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.

60. The terminal device according to any one of claims 49-58, characterized in that, Before the terminal device is configured with the second offset value or with the second HARQ feedback timing set, the first target offset value is determined based on 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 based on the second offset value.

61. The terminal device according to any one of claims 49-58, characterized in that, The first target offset value is determined based on the first offset value.

62. The terminal device according to any one of claims 49-58, characterized in that, The first target offset value is used by the terminal device to determine the 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 the uplink timing for uplink transmission in the Radio Resource Control (RRC) connected state.

63. The terminal device according to any one of claims 49-58, characterized in that, The first HARQ feedback timing set is a preset HARQ feedback timing set; and / or, The first DCI format includes DCI format 1_0.

64. The terminal device according to any one of claims 49-58, characterized in that, The first offset value is determined based on the first indication information sent by the network device; and / or, The second offset value is determined based on the second indication information sent by the network device.

65. The terminal device according to claim 64, characterized in that, The first indication information is carried in a system message sent by the network device.

66. The terminal device according to claim 64, characterized in that, The second indication information is carried in the RRC signaling or Media Access Control (MAC) control element CE sent by the network device.

67. The terminal device according to claim 64, characterized in that, 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 is one of subframe, frame, millisecond, and second; and / or, The time unit indicated by the second indication information is based on the time unit of the first SCS, or the time unit indicated by the second indication information is one of subframe, frame, millisecond, and second.

68. The terminal device according to claim 67, characterized in that, The first SCS is preset or configured by the network device.

69. The terminal device according to any one of claims 49-58, characterized in that, The time unit of the first offset value is based on the time unit of 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.

70. The terminal device according to claim 69, characterized in that, 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.

71. The terminal device according to claim 67, characterized in that, A time unit is one of the following: one or more sub-slots, one or more slots, or one or more symbols.

72. The terminal device according to any one of claims 49-58, characterized in that, The terminal device also includes: The sending unit is configured to send a first hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook during the first feedback time unit.

73. A network device, characterized in that, include: The transmitting unit is used to transmit a first DCI in a format corresponding to the first downlink control information DCI, wherein the first DCI corresponds to the first hybrid automatic repeat request (HARQ) feedback timing. The determining unit is configured to determine the first feedback time unit corresponding to the first DCI based on the first HARQ feedback timing and the first target offset value. Wherein, the first HARQ feedback timing corresponds to the 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 based on the first offset value or the second offset value; The first feedback time unit is associated with the second HARQ feedback timing set and / or the second target offset value. The second HARQ feedback timing set is the HARQ feedback timing set corresponding to the second DCI format, and the second target offset value is determined based on the second offset value.

74. The network device according to claim 73, characterized in that, 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 reception opportunity corresponding to the first feedback time unit is determined based on the second HARQ feedback timing set and / or the second target offset value.

75. The network device according to claim 73, characterized in that, The first HARQ feedback timing corresponds to a first set, wherein the first set is determined based on 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.

76. The network device according to claim 75, characterized in that, 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; 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 timing set.

77. The network device according to claim 76, characterized in that, 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.

78. The network device according to claim 75, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The sum of the first HARQ feedback timing and the first target offset value is the value in the first set.

79. The network device according to claim 78, characterized in that, The first set is the intersection of the second set and the third set.

80. The network device according to claim 75, characterized in that, The first HARQ feedback timing corresponds to the first set, including: The first HARQ feedback timing is a value from the first set.

81. The network device according to claim 80, characterized in that, The first set is the difference between the intersection of the second set and the third set and the first target offset value.

82. The network device according to any one of claims 73-81, characterized in that, The second HARQ feedback timing set is the 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.

83. The network device according to any one of claims 73-81, characterized in that, The first DCI corresponds to the first HARQ feedback timing, including: the HARQ feedback timing indication information in the first DCI indicates the first HARQ feedback timing in the first HARQ feedback timing set.

84. The network device according to any one of claims 73-81, characterized in that, Before the terminal device is configured with the second offset value or with the second HARQ feedback timing set, the first target offset value is determined based on 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 based on the second offset value.

85. The network device according to any one of claims 73-81, characterized in that, The first target offset value is determined based on the first offset value.

86. The network device according to any one of claims 73-81, characterized in that, The first target offset value is used by the terminal device to determine the 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 the uplink timing for uplink transmission in the Radio Resource Control (RRC) connected state.

87. The network device according to any one of claims 73-81, characterized in that, The first HARQ feedback timing set is a preset HARQ feedback timing set; and / or, The first DCI format includes DCI format 1_0.

88. The network device according to any one of claims 73-81, characterized in that, The first offset value is determined based on the first indication information sent by the network device; and / or, The second offset value is determined based on the second indication information sent by the network device.

89. The network device according to claim 88, characterized in that, The first indication information is carried in a system message sent by the network device.

90. The network device according to claim 88, characterized in that, The second indication information is carried in the RRC signaling or Media Access Control (MAC) control element CE sent by the network device.

91. The network device according to claim 88, characterized in that, 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 is one of subframe, frame, millisecond, and second; and / or, The time unit indicated by the second indication information is based on the time unit of the first SCS, or the time unit indicated by the second indication information is one of subframe, frame, millisecond, and second.

92. The network device according to claim 91, characterized in that, The first SCS is preset or configured by the network device.

93. The network device according to any one of claims 73-81, characterized in that, The time unit of the first offset value is based on the time unit of 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.

94. The network device according to claim 93, characterized in that, 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.

95. The network device according to claim 91, characterized in that, A time unit is one of the following: one or more sub-slots, one or more slots, or one or more symbols.

96. The network device according to any one of claims 73-81, characterized in that, The network device also includes: The receiving unit is configured to receive the first Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) codebook during the first feedback time unit.

97. A terminal device, characterized in that, It includes a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to perform the method as described in any one of claims 1-24.

98. A network device, characterized in that, It includes a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to perform the method as described in any one of claims 25-48.

99. An apparatus, characterized in that, Includes a processor for calling a program from memory to perform the method as described in any one of claims 1-24.

100. An apparatus, characterized in that, Includes a processor for calling a program from memory to perform the method as described in any one of claims 25-48.

101. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-24.

102. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 25-48.

103. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-24.

104. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 25-48.

105. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-24.

106. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 25-48.

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