Method and apparatus for wireless communication

Abstract

Provided are a method and apparatus for wireless communication, which contribute to reducing transmission conflicts when a communication device performs half-duplex communication. The method comprises the following steps: a first device sends a first TAR according to first information; wherein the first information comprises the business service time of the first equipment, and / or the business type of the first equipment.

Description

[0001] This application is a divisional application of application number 202480001324.9, filed on June 14, 2024, entitled "Method and Apparatus for Wireless Communication". Technical Field

[0002] This application relates to the field of communication technology, and more specifically, to a method and apparatus for wireless communication. Background Technology

[0003] Some communication systems (e.g., non-terrestrial network (NTN) systems) experience significant transmission delays. In these systems, if communication devices operate in half-duplex mode, an uplink transmission may conflict with a downlink reception, or with other uplink transmissions. Therefore, resolving transmission conflicts in half-duplex mode is a pressing technical problem in these systems. Summary of the Invention

[0004] This application provides a method and apparatus for wireless communication. The various aspects related to the embodiments of this application are described below.

[0005] In a first aspect, a method for wireless communication is provided, comprising: a first device sending a first timing advance report (TAR) based on first information; wherein the first information includes the service time of the first device and / or the service type of the first device.

[0006] In a second aspect, a method for wireless communication is provided, comprising: a second device receiving a first TAR sent by a first device; wherein the first TAR is triggered according to first information, the first information including the service time of the first device, and / or the service type of the first device.

[0007] Thirdly, an apparatus for wireless communication is provided, the apparatus being a first device, the first device comprising: a first transceiver unit, configured to transmit a first TAR according to first information; wherein the first information includes the service time of the first device, and / or the service type of the first device.

[0008] Fourthly, a device for wireless communication is provided, the device being a second device, the second device comprising: a second transceiver unit for receiving a first TAR sent by a first device; wherein the first TAR is triggered according to first information, the first information including the service time of the first device, and / or the service type of the first device.

[0009] Fifthly, a communication device is provided, including a memory and a processor, the memory for storing a program, and the processor for calling the program in the memory to perform the method as described in the first or second aspect.

[0010] A sixth aspect provides an apparatus including a processor for calling a program from memory to perform the method as described in the first or second aspect.

[0011] A seventh aspect provides a chip including a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in the first or second aspect.

[0012] Eighthly, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method as described in the first or second aspect.

[0013] Ninth aspect, a computer program product is provided, including a program that causes a computer to perform the method as described in the first or second aspect.

[0014] In a tenth aspect, a computer program is provided that causes a computer to perform the method as described in the first or second aspect.

[0015] In this embodiment, the first device sends a first TAR based on its service time and / or service type. Compared to the method of triggering the first TAR based on higher-level configuration, this method achieves finer-grained TAR reporting by adding events that trigger the first TAR, which helps reduce transmission conflicts and lower the ratio of unavailable resources. Attached Figure Description

[0016] Figure 1 This is the wireless communication system used in the embodiments of this application.

[0017] Figure 2 This is an NTN system used in the embodiments of this application.

[0018] Figure 3 This is another NTN system used in the embodiments of this application.

[0019] Figure 4 This is a diagram illustrating the conflict between downlink and uplink transmissions.

[0020] Figure 5 This is a schematic diagram of the timing advance change of the serving cell in the NTN system.

[0021] Figure 6 This is a flowchart illustrating a method for wireless communication provided in an embodiment of this application.

[0022] Figure 7 This is a flowchart illustrating another method for wireless communication provided in an embodiment of this application.

[0023] Figure 8 yes Figure 7 A schematic diagram of one possible implementation of the method shown.

[0024] Figure 9 yes Figure 7 A schematic diagram of another possible implementation of the method shown.

[0025] Figure 10 yes Figure 7 A schematic diagram of another possible implementation of the method shown.

[0026] Figure 11 This is a schematic diagram of a device for wireless communication provided in an embodiment of this application.

[0027] Figure 12 This is a schematic diagram of another device for wireless communication provided in an embodiment of this application.

[0028] Figure 13 This is a schematic diagram of another device for wireless communication provided in the embodiments of this application.

[0029] Figure 14 This is a schematic diagram of another device for wireless communication provided in the embodiments of this application.

[0030] Figure 15 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0031] 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.

[0032] The embodiments of this application can be applied to various communication systems. For example, they can be applied to Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based access to unlicensed spectrum (LTE-U), NR-based access to unlicensed spectrum (NR-U), Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), and 5th-generation (5G) systems. The embodiments of this application can also be applied to other communication systems, such as future communication systems. The future communication system could be, for example, a 6th-generation (6G) mobile communication system or a satellite communication system.

[0033] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can support not only traditional cellular communication but also one or more other types of communication. For example, a communication system can support one or more of the following communication methods: device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), enhanced machine-type communication (eMTC), vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to communication systems that support the above-mentioned communication methods.

[0034] 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.

[0035] The communication system in this application embodiment can be applied to unlicensed spectrum. This unlicensed spectrum can also be considered a shared spectrum. Alternatively, the communication system in this application embodiment can also be applied to licensed spectrum. This licensed spectrum can also be considered a dedicated spectrum.

[0036] The embodiments of this application can be applied to NTN systems. As an example, the NTN system can be a 4G-based NTN system, an NR-based NTN system, an Internet of Things (IoT)-based NTN system, or a narrowband Internet of Things (NB-IoT)-based NTN system.

[0037] A communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of this application 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 equipment, user agent, or user device, etc.

[0038] In some embodiments, the terminal device may be a station (ST) in a WLAN. In some embodiments, the terminal device may be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a next-generation communication system (such as an NR system), or terminal device in a future public land mobile network (PLMN) network, etc.

[0039] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to a user. For example, the terminal device may be a handheld device, an in-vehicle device, etc., with wireless connectivity. As some specific examples, the terminal device may be a mobile phone, tablet, laptop, 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.

[0040] In some embodiments, the terminal device may be deployed on land. For example, the terminal device may be deployed indoors or outdoors. In some embodiments, the terminal device may be deployed on water, such as on a ship. In some embodiments, the terminal device may be deployed in the air, such as on an airplane, balloon, or satellite.

[0041] In addition to terminal devices, the communication system may also include one or more network devices. In this embodiment, the network device can be a device for communicating with the terminal device; this network device may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. In this embodiment, the network device may 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 (AP), transmitting and receiving point (TRP), transmitting point (TP), master MeNB, slave SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, 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 a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in D2D, V2X, and M2M communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks with 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] 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. In some embodiments of this application, the network device may also be a base station located on land, water, or other similar locations.

[0045] In this embodiment of the application, the network device can provide services for 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 here 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.

[0046] For example, Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. Figure 1 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.

[0047] Figure 1 An exemplary network device and two terminal devices are shown. 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, without limitation.

[0048] For example, Figure 2 This is a schematic diagram of an architecture of the NTN system mentioned above. Figure 2 The NTN system 200 shown uses satellite 210 as its airborne platform. For example... Figure 2 As shown, the satellite radio access network includes a satellite 210, a service link 220, a feeder link 230, terminal equipment 240, a gateway (GW) 250, and a network 260 including base stations and a core network.

[0049] Satellite 210 is a spacecraft based on a space platform. Service link 220 refers to the link between satellite 210 and terminal equipment 240. Feeder link 230 refers to the link between gateway 250 and satellite 210. The Earth-based gateway 250 connects satellite 210 to the base station or core network, depending on the NTN architecture chosen.

[0050] Figure 2 The NTN architecture shown is a bend-type transponder architecture. In this architecture, the base station is located on Earth behind gateway 250, and satellite 210 acts as a relay. Satellite 210 operates as a relay that forwards signals from feeder link 230 to serving link 220, or forwards signals from serving link 220 to feeder link 230. That is, satellite 210 does not have the function of a base station; communication between terminal device 240 and the base station in network 260 needs to be relayed through satellite 210.

[0051] For example, Figure 3 This is a schematic diagram of another architecture for the NTN system. (Example:) Figure 3 As shown, the satellite radio access network 300 includes a satellite 310, a service link 320, a feeder link 330, terminal equipment 340, a gateway 350, and a network 360. Figure 2 The difference is that satellite 310 has base station 312, while the network 360 behind gateway 350 only includes the core network.

[0052] Figure 3 The NTN architecture shown is a regenerative transponder architecture. In this architecture, satellite 310 carries base station 312, which can be directly connected to the Earth-based core network via a link. Satellite 310 functions as a base station, and terminal equipment 340 can communicate directly with satellite 310. Therefore, satellite 310 can be referred to as a network device.

[0053] exist Figure 2 and Figure 3 The communication system with the architecture shown may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application embodiment does not limit this.

[0054] In the embodiments of this application, Figures 1 to 3 The 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.

[0055] 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 1 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.

[0056] 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.

[0057] With the development of communication technologies, communication systems (such as 5G) will integrate satellite and terrestrial network infrastructure, creating market potential. For example, the 5G standard makes NTN, including satellite segments, part of the recognized 3rd Generation Partnership Project (3GPP) 5G connectivity infrastructure.

[0058] NTN refers to a network or network segment that uses radio frequency (RF) resources on satellite or unmanned aerial system (UAS) platforms. Taking satellites as an example, 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. LEO is a geocentric orbit with an altitude of 2000 kilometers or less, or at least 11.25 cycles per day, with an eccentricity of less than 0.25. Most man-made objects in outer space are located in LEO. LEO satellites orbit the Earth at high speeds (mobility), but in predictable or deterministic orbits.

[0059] Satellites at different orbital altitudes have different orbital periods. For example, typical LEO altitudes range from 250 to 1500 kilometers with orbital periods of 90 to 120 minutes. Typical MEO altitudes range from 5000 to 25000 kilometers with orbital periods of 3 to 15 hours. GEO altitudes are approximately 35786 kilometers with an orbital period of 24 hours.

[0060] From the example of satellites mentioned earlier Figure 2 and Figure 3 It is known that typical scenarios for terminal devices accessing the NTN system involve NTN transparent payloads or NTN regenerated payloads. Among these, Figure 2 The bent-tube transponder architecture shown corresponds to the NTN transparent payload. Figure 3 The regenerative transponder architecture shown corresponds to the NTN regenerative payload.

[0061] In an NTN system, ground-based terminal devices communicate wirelessly via an airborne platform. Unlike terrestrial networks (TN), NTN typically experiences higher transmission latency. For example, because satellites are usually located hundreds of kilometers above the Earth's surface, propagation delays in NTN are much longer. Specifically, propagation delays in NTN range from a few milliseconds to hundreds of milliseconds, depending on the altitude of the spaceborne or airborne platform and the type of payload in the NTN.

[0062] Due to the significant propagation delay, some issues may need to be addressed when deploying technologies in terrestrial networks within NTN systems. For example, in IoT NTN versions 17 (release-17, Rel-17) and Rel-18, NB-IoT technology was enhanced to support NTN.

[0063] With the development of IoT technology, reduced-capability (RedCap) terminal devices can provide services well in many IoT-like use cases besides NB-IoT. In other words, RedCap devices also need to be applied in NTN systems.

[0064] RedCap is a new terminal capability information introduced in Rel-17. RedCap-enabled terminal devices can have reduced complexity and new power-saving features, thus facilitating large-scale commercial deployment in 5G networks. Taking NR as an example, RedCap can reduce device capabilities by decreasing bandwidth, the number of transmit and receive antennas, reducing data rates, adjusting modulation schemes, and introducing half-duplex modes, thereby reducing terminal device complexity and achieving a series of goals such as lower terminal costs, lower power consumption, and extended lifespan. Therefore, RedCap requirements differ from those of LTE-based IoT (LTE for machines, LTE-M) and NB-IoT.

[0065] As mentioned above, RedCap supports half-duplex (HD) operation. In half-duplex frequency division multiplexing (FDD) mode, communication devices can transmit and receive at different times and frequencies. Compared to full-duplex FDD (FD FDD) mode, devices supporting half-duplex FDD (HDFDD) mode do not require a duplexer, thus reducing complexity and cost. For example, half-duplex FDD devices can relax the requirements for components in the RF front-end, using lower-cost transmit / receive antenna switches and low-pass filters instead of a duplexer.

[0066] Since half-duplex mode requires transmission and reception at different times and frequencies, when Redcap equipment uses HDFDD mode, there may be a need for the terminal device to simultaneously perform downlink (DL) reception and uplink (UL) transmission. In other words, the terminal side may experience collisions and conflicts between uplink and downlink transmissions.

[0067] Furthermore, in NTN systems, there is a significant propagation delay between uplink and downlink. Due to the unique characteristics of NTN systems, HDFDD, which requires uplink and downlink to be transmitted at different points, may lead to more complex collision scenarios.

[0068] As an example, in NR NTN, terminal devices need to receive system information blocks (SIBs) for communication. For instance, a terminal device needs to periodically read SIB19 to keep the ephemeris up-to-date. Specifically, the terminal device can determine when to read SIB19 based on the validity of the ephemeris and the time of the last SIB19 acquisition. SIB19 is typically carried in system information (SI) messages. This message is transmitted on the downlink-shared channel (DL-SCH). Only SIBs with the same periodicity can map to the same SI message. Each SI message is sent within a periodically occurring time-domain window, where all SI messages can have SI windows of the same length. Each SI message is associated with an SI window, and the SI windows of different SI messages do not overlap. That is, only the corresponding SI message is sent within a given SI window. The system can send the corresponding SI message multiple times within a certain SI window. Therefore, SIB19 can be sent periodically during the SI window associated with it. The duration and start time of the SI window are known to the terminal device.

[0069] As discussed above, SIB19 is broadcast periodically, and numerous SIB19 transmissions occur within the ephemeris's validity period, giving full-duplex end devices ample opportunities to read SIB19. However, for half-duplex end devices, potential conflicts between UL and SIB19 transmissions can deprive them of these opportunities. Furthermore, scheduling end devices via network equipment (e.g., gNB) to avoid UL transmissions during all SIB19 transmissions is not advisable, as this would result in a loss of UL throughput for the end devices and could potentially degrade or exclude some UL services from half-duplex end devices. For example, if UL voice packets are transmitted 16 times every 20 milliseconds, it is nearly impossible to avoid conflicts between the physical uplink shared channel (PUSCH) carrying voice and SIB19 transmissions via gNB scheduling.

[0070] To facilitate understanding, the following will be combined with... Figure 4 This section provides an exemplary illustration of the conflict between uplink transmissions of a terminal device (e.g., a UE) and downlink transmissions of SIB19. See [link to relevant documentation]. Figure 4 The UL transmission of the terminal device is a PUSCH transmission carrying voice, and this transmission is dynamic. Figure 4 The downlink transmission in SIB19 is a physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH) transmission, which is periodically transmitted based on the SI cycle.

[0071] like Figure 4 As shown, both PDCCH / PDSCHs conflict with the PUSCH carrying voice. According to relevant rules, when a conflict occurs, the terminal device can cancel voice transmission and / or abandon SIB19 reception. Based on this rule, a conflict between SIB19 and PUSCH may result in unacceptable voice quality and / or loss of the opportunity to read SIB19.

[0072] As an example, in an NTN system, satellite movement causes changes in propagation delay, making it difficult for network devices to schedule uplink or downlink transmissions. This is because network devices may not know whether collisions will occur at the end-device side, or which channels / signals will collide at the end-device side.

[0073] As an example, the network can assess the location and path loss of end devices and notify them of timing advance (TA) adjustments via the media access control control element (MAC CE). When the end device's TA is updated, it can also send an updated TA report (TAR) via the MAC CE. For example, in release 17 (Rel-17), two conditions support TAR. The first condition is that the end device will send a TAR during random access caused by radio resource control (RRC) connection establishment or RRC connection recovery, and during RRC connection reconstruction. The second condition is that the end device will report a TA when the change in the TA value is equal to or greater than a configured threshold. Network devices (e.g., gNBs) can configure the end device to report TAR based on an offset threshold. However, the network device cannot determine whether the end device has uplink or downlink traffic data transmissions in the time instance at which the configuration is performed. In addition, when network devices configure TAR reporting based on offset thresholds, terminal devices without services also need to report TAR status from time to time, which not only causes additional power consumption for terminal devices, but also occupies limited resources in the NTN uplink.

[0074] In the example above, at time T1, within the service area of ​​satellite 1, the terminal device can calculate the TA value in the TA report. And report it. Among them, The calculation is based on the following formula: ; in, As the basic unit of time; It is the TA value indicated in the TA command sent by the network device through MAC CE, for transmission on the physical random access channel (PRACH). It can be defined as 0; It is a fixed offset value associated with the frequency band and / or subcarrier spacing; It is the common TA, which is a network-controlled TA value that is common to all terminal devices in an NTN cell. This TA value may include any timing offsets that the network determines are necessary. This is the UE-specific TA for the terminal device, which is estimated by the terminal device itself and used to compensate for the service link delay between the terminal device and the satellite.

[0075] As an example, in NR NTN, a TA mismatch (TA misalignment) problem can occur if a network device does not receive any TARs, the TARs are outdated, or the TAR reporting granularity is not fine enough. For instance, if the terminal device does not report TARs, the network device cannot set certain critical scheduling variables (such as K). cell,offset K UE,offset For example, when the location of a terminal device changes, outdated TARs may cause discrepancies between the actual TA and the indicated TA. This discrepancy could be between the minimum TA (min TA) and the maximum TA (max TA). This discrepancy may also occur proportionally to the round-trip time (RTT) difference of the terminal device. RTT differences can depend on the terminal device's location within the cell. Furthermore, the reporting granularity of TARs in an NTN might be 1 ms. When the difference between the minimum and maximum TA within the cell is smaller than the reporting granularity of the TAR, it may lead to TA mismatch.

[0076] To facilitate understanding, we will use LEO as an example below, combined with... Figure 5 An example is provided to illustrate a scenario where TA mismatch occurs in an NTN system. For example... Figure 5 As shown, the LEO is 600 km above the ground and has a beam size of 50 km. When the target elevation angle is 30 degrees, the TA difference between the shortest and longest RTT is approximately within 300 μs. Figure 5 The reporting TA difference is the difference between the minimum and maximum reporting TA within the serving cell. 300μs corresponds to approximately 4-5 orthogonal frequency division multiplexing (OFDM) symbols at a 15kHz subcarrier spacing (SCS). However, a 1ms reporting granularity is equivalent to 14 OFDM symbols at a 15kHz SCS.

[0077] Depend on Figure 5 It is known that for a 600km LEO (Leadership in Orbit), with a beam size of 50km and a target elevation angle of 30 degrees, the difference between the minimum and maximum TA (Target Acquisition) may be smaller than the TA reporting granularity (e.g., 1ms). With a reporting granularity of 1ms, TA mismatches can occur within 1ms regardless of satellite parameters. Therefore, at least 1ms of resources may need to be reserved between DL (Deep Stream) and UL (Ultra Stream) transmissions to avoid incorrect scheduling of terminal equipment. This is especially true considering that transmission duration in NTN (Network Transmission Network) is typically longer than in TN (Total Stream Transmission Network) due to uplink repetition. Therefore, in LEO, the primary cause of TA mismatches is likely insufficient TA reporting granularity rather than outdated TARs (Target Acquisition Reports).

[0078] In summary, when technologies supporting half-duplex operation, such as RedCap, are applied to NTN systems, it is necessary to investigate the possibility of supporting half-duplex operation through NTN specification. Therefore, how to deploy half-duplex-enabled terminal devices in NTN systems, how to reduce or avoid potential conflicts in half-duplex operation mode, and how to handle transmission when conflicts occur are all urgent technical problems that need to be solved.

[0079] It should be noted that the problem mentioned above, where RedCap supports half-duplex mode and the TA report granularity is large, causing uplink and downlink transmission conflicts in the NTN system, is only an example. The embodiments of this application can be applied to communication scenarios of any type of terminal device with large TA report granularity or supporting half-duplex communication.

[0080] To address the aforementioned problems, this application proposes a method for wireless communication. Through this method, a first device can determine whether to send a first TAR based on the service service time and / or service type. Therefore, the triggering event of the first TAR adds service-related information of the first device, making the reporting granularity of the first TAR more refined and helping to reduce transmission conflicts. For ease of understanding, the following describes... Figure 6 A detailed explanation will be provided. Figure 6 It is presented from the perspective of the interaction between the first and second devices.

[0081] In some embodiments, the first device may be a terminal device that performs uplink transmission to a network device, or a terminal device that receives downlink transmission from a network device; this is not limited thereto. For example, the first device may be a UE (User Equipment) or a relay device.

[0082] As an example, the first device can be a terminal device in an NTN system. In some embodiments, the first device can be a terminal device in an NB-IoT system. In some embodiments, the first device can be a terminal device in a network with long communication latency.

[0083] As an example, the first device is located within the satellite's coverage area. For instance, the first device is an NTN IoT terminal.

[0084] In some embodiments, the first device may be a terminal device that performs side-by-side transmission to other terminal devices.

[0085] In some embodiments, the first device is a terminal device or a relay device that supports half-duplex communication. For example, the first device is the RedCap device described above. For example, the first device is any low-power device that supports half-duplex mode.

[0086] As an example, the first device can support both half-duplex and other modes simultaneously. Other modes include, for example, full-duplex mode.

[0087] As an example, the first device can be any one of multiple terminal devices supporting half-duplex communication within the NTN cell, without limitation. Exemplarily, the first device corresponds to the serving cell of the NTN.

[0088] In some embodiments, the second device can be a network device or a network-side device in any communication system. The communication system is, for example, an NTN system. In some embodiments, the second device may include a satellite in the NTN system, and the first device is a terminal device in a cell providing services to the satellite. For example, when a base station is deployed on a satellite, the first device can communicate directly with the base station on the satellite. For example, when the satellite acts as a relay, the first device can communicate with a network device located on the ground via the satellite.

[0089] As an example, when the second device includes a satellite, the first device may be located within the service area of ​​the satellite at the current moment to send or receive the first transmission via the satellite.

[0090] In some embodiments, the second device may be a terminal device or a relay device that communicates with the first device in a side-by-side communication system.

[0091] See Figure 6 In step S610, the first device sends a first TAR to the second device. Correspondingly, the second device receives the first TAR sent by the first device. The first device can send the first TAR to the second device based on first information. The first information is used to trigger the first device to send the first TAR; that is, the first TAR is triggered based on the first information.

[0092] In some embodiments, the first information may also be referred to as the triggering information for the TAR. Instead of the first device sending the first TAR based on the first information, the first device may determine whether to trigger the first TAR based on the first information.

[0093] In some embodiments, the first information may include an indication sent by a higher layer to trigger a TAR and a TA offset threshold configured by the higher layer. As previously described, the first device is triggered to send a TAR if it has not previously reported a TA value to the current serving cell, or if the change between the current estimated TA value and the most recently reported TA value is equal to or greater than the TA offset threshold (if configured). To achieve finer granularity in TA reporting, the triggering event for the first TAR can be increased according to actual transmission needs.

[0094] In some embodiments, the first information may further include information related to the services of the first device. In some embodiments, the first TAR may also be triggered based on various service-related events. These service-related events may include, for example, service level, service type, service duration, and service time.

[0095] In one implementation, the first information may include the service events of the first device, and / or the service type of the first device. Considering higher-level indications or configurations, the first information may include one or more of the following: higher-level indications for triggering TAR, higher-level configured TA offset thresholds, the service time of the first device, and the service type of the first device.

[0096] For example, the first TAR can be triggered based on one or more of the following information: an instruction from a higher layer to trigger the TAR, a TA offset threshold configured by the higher layer, the service time of the first device, and the service type of the first device. That is, in response to an event related to any of the above information, the first device can send the first TAR. Here, "higher layer" can also be referred to as the upper layer.

[0097] As an example, the TA offset threshold is used to trigger TAR reporting, and can also be called the trigger offset threshold.

[0098] In some embodiments, the first information includes the service time of the first device. As an example, the service time of the first device may represent the current time when service can be provided to the first device, or the remaining service time of the current service. Optionally, the service time of the first device may be determined based on the capabilities and location of the first device itself, or based on the current service time of the cell.

[0099] As one possible implementation, when the cell corresponding to the first device is a cell in the NTN (the serving cell of the NTN corresponding to the first device), the service time of the first device can be determined based on the location of the first device and / or the service time provided by the NTN satellites. For example, when the location of the first device changes, the first device may leave the current cell, resulting in a low service time. Similarly, when the current satellite of the NTN cell is about to leave the cell where the first device is currently located, the service time may fall below a first threshold.

[0100] For example, when the first device receives an instruction to trigger a TAR from a higher layer, and the service time of the first device exceeds a first threshold, the first device sends a first TAR. That is, when the service time is long, the first TAR is sent in a timely manner to reduce possible transmission conflicts through finer-grained TAR reporting.

[0101] For example, when the service time of the first device is equal to or less than a first threshold, the first device does not send the first TAR. When the remaining service time decreases, the first device may not send the first TAR, thereby reducing unnecessary power consumption. For example, the service time of the first device is T-UE, and the first threshold is set to T. target Then, if T-UE is greater than T target If T-UE is less than T, then the first TAR will be sent; target If the first device does not trigger the transmission of the first TAR, it will avoid unnecessary power consumption of the first device.

[0102] As one possible implementation, the first threshold can be configured by a higher layer or determined by the first device itself.

[0103] As one possible implementation, in an NTN system, the first threshold can be determined based on the satellite's service time. The satellite currently provides service to the serving cell where the first device is located. The satellite's service time can be the remaining service time of the satellite within that serving cell. For example, the first threshold T... target It can be 10% × T-service, where T-service is the service time of the NTN satellite. For example, when the service time of the first device is within T-service, the transmission of the first TAR is triggered; when the service time of the first device is outside T-service, the transmission of the first TAR is not triggered.

[0104] In some embodiments, the first information includes the service type of the first device. The service type of the first device may refer to the type of resources required for the service of the first device, the application scenario of the service, or the service level, and is not limited here.

[0105] As an example, the service type of the first device can be used to set timers related to TAR triggering. By adding a service type-based timer to trigger TAR, the reporting granularity of TAR can be made service type-dependent. In other words, the first device can trigger TAR transmission based on the timer corresponding to the service type.

[0106] For example, the service type of the first device is used to set a first timer related to the TA offset threshold. That is, the first device can set a first timer related to the TA offset threshold according to the service type. Different durations can be set for the first timer for different service types. Therefore, the setting of offsetThresholdTA (TA offset threshold) is related not only to location information but also to the service type. Different services have different values ​​for offsetThresholdTA. For example, the higher the service level of the first device, the smaller the offsetThresholdTA value can be set, thereby achieving a smaller trigger offset threshold.

[0107] Optionally, the first device may send a first TAR based on a trigger TAR instruction from the upper layer.

[0108] Optionally, when configuring offsetThresholdTA at the upper layer, if the change in the TA value is equal to or greater than offsetThresholdTA, the first device sends the first TAR.

[0109] Optionally, the first device can trigger the transmission of the first TAR based on the service time and an instruction from a higher layer to avoid or reduce conflicts. With the introduction of service time-based triggering, the first device can detect its own service time after receiving a trigger TAR instruction from the higher layer, and then determine whether to send the first TAR based on the relationship between the service time and a threshold.

[0110] Optionally, the first device may determine whether to send the first TAR based on location information and service type.

[0111] In some embodiments, to achieve more accurate TA reporting, the relevant TA reporting mechanism can be directly enhanced. As one implementation, the first device can use a reporting MAC CE of the same size as the TAR MAC CE (2 octets) to provide finer reporting granularity. In related technologies, the TA value sent by the first TAR for the first time via the 2 octets of the MAC CE is... This TA value can be called the first TA value in the first TAR. (Based on the previous text regarding...) As can be seen from the calculation formula, the first TA value in the first TAR can be determined based on the TA value in the TA command. ), first offset value ( ), Public TA ( ) and the dedicated TA value of the first device ( The four are determined.

[0112] It should be understood that when TAR MAC CE corresponds to 2 octets, those 2 octets can be the first byte segment corresponding to the first TAR. When TAR MAC CE corresponds to a byte segment of other length, that byte segment of other length is the first byte segment corresponding to the first TAR.

[0113] As an example, to provide finer-grained reporting, the first device can use MAC CE to report only the specific TA value that the first device is estimating, i.e. Specific components of the first device ( In other words, when the first TAR is triggered, the first device can send only its own TA value through the first byte segment.

[0114] As an example, to provide finer-grained reporting, the first device can use MAC CE to report only the current... The change in TA value relative to the last reported value, i.e. In other words, when the first TAR is triggered, the first device can send the difference between the first TA value and the second TA value through the first byte segment. The second TA value is the TA value in the second TAR sent by the first device in the previous transmission. It should be understood that the previous transmission can be the transmission immediately preceding the first TAR transmission or the initial transmission.

[0115] In the above embodiments, a dedicated TA value or Within a certain period of time, it can be used as a report to the gNB for the entire process. The substitution of values. This is because within a certain time period, The calculated parameters remain valid and known on both the UE and gNB sides. Therefore, the two octets of the enhanced report MAC CE can be used entirely to transmit the variables in the entire TA value (first TA value).

[0116] As one embodiment, the first byte segment corresponding to the first TAR can be divided into at least two second byte segments. One of the at least two second byte segments is used to transmit the dedicated TA value of the first device, or the difference between the first TA value and the second TA value in the first TAR ( For example, the first device can report its dedicated TA value using a four-bit byte or... Therefore, it is evident that two octets can facilitate the first device in reporting TA-related parameters more frequently.

[0117] In some embodiments, the second device can configure the first resource based on the first TAR. When the TA value in the first TAR is more accurate, the probability of transmission collisions occurring on the first resource is reduced. That is, in some scenarios, the first resource can be determined based on the first TAR reported by the first device. The following will combine... Figure 7 The first resource in the text will be explained in detail.

[0118] Depend on Figure 6 As can be seen, this application embodiment adds multiple triggering opportunities for the first TAR and proposes an enhanced reporting method to achieve finer reporting granularity. As mentioned earlier, in the NTN system, the distance between the satellite and the ground communication equipment is relatively large, resulting in significant transmission delay. For half-duplex communication in the NTN system, even with finer reporting granularity for the first TAR, the first device may still experience uplink and downlink transmission conflicts.

[0119] To address the issue of transmission handling in case of conflicts, this application proposes another method for wireless communication. This method allows a first transmission performed by a first device on a first resource to be determined based on a first priority order. The first resource is one of multiple resources related to half-duplex communication, and multiple priority orders, including the first priority order, can be used for these multiple resources. Therefore, multiple resources used for half-duplex communication can each select appropriate transmissions based on different priority orders, allowing for flexible configuration of transmission types on half-duplex communication resources according to communication needs. This helps reduce or avoid transmission conflicts for the first device and improves transmission efficiency.

[0120] To facilitate understanding, the following will be combined with... Figure 7 The method for wireless communication proposed in the embodiments of this application will be described in detail. Figure 7 The method shown is performed by the first device. Figure 7 The first transmission in the text refers to the transmission between the first device and the second device. For simplicity, Figure 6 Terms already explained will not be repeated.

[0121] See Figure 7 In step S710, the first device sends or receives a first transmission on the first resource according to a first priority order. Correspondingly, the second device can receive or send the first transmission on the first resource.

[0122] The first transmission can be any type of channel, signal, or signaling transmission, without limitation. For example, the first transmission can be an uplink channel transmission such as PUSCH or PUCCH, a downlink channel transmission such as PDCCH or PDSCH, or a side channel transmission such as PSSCH or PSCCH. Furthermore, the first transmission can be an uplink reference signal, a side reference signal, or a downlink reference signal. Also, the first transmission can be any type of signaling transmission.

[0123] As an example, the first transmission can be any type of transmission that is transmitted via air interface resources.

[0124] In some embodiments, the first transmission can be any one of a plurality of transmissions. That is, the first transmission is one of a plurality of transmissions. The plurality of transmissions may include any of the transmissions of channels, signals, or signaling described above, and are not limited thereto.

[0125] In some embodiments, multiple transmissions can be classified according to transmission direction or transmission importance in order to determine the first transmission.

[0126] As one possible implementation, multiple transmissions can include a first type of transmission and a second type of transmission other than the first type of transmission, wherein the first type of transmission has a higher priority than the second type of transmission. That is, when both the first type of transmission and the second type of transmission need to be transmitted on the first resource, the first type of transmission is sent first.

[0127] Optionally, the first type of transmission may include one or more of the following: downlink transmissions of SIB; TAR and / or TAR-triggered scheduling requests (SRs); transmissions with HARQ feedback enabled / disabled (hybrid automatic repeat reQuest, HARQ); and uplink transmissions bundled based on demodulation reference signals (DMRS). The DL / UL transmissions of the first or second device include these four types of transmissions, which have higher priority than other DL / UL data transmissions.

[0128] As an example, SIB downlink transmission can include SIB19 downlink transmission, or it can be SIB19 downlink transmission. SIB downlink transmission can also be referred to as SIB downlink reception. SIB19 downlink transmission can also be referred to as SIB19 downlink reception. When the first type of transmission includes SIB19 downlink transmission, it helps the terminal device to read the latest information from the ephemeris in a timely manner.

[0129] As an example, a TAR and / or a TAR-triggered SR belongs to the uplink transmission associated with the TAR. In NR NTN, uplink transmissions associated with TAR are important information related to uplink timing. To enable NTN network devices to set appropriate uplink timing offsets (e.g., K... cell,offset K UE,offset NTN network devices need to receive TAR information in a timely manner. Therefore, terminal devices need to execute TAR or SR triggered by TAR uplink transmission in a timely manner.

[0130] As an example, in an NTN system, certain HARQ processes can enable / disable HARQ feedback. These transmissions with HARQ feedback enabled / disabled have different requirements than other transmissions; therefore, the transmission priority between DL / UL can be set based on whether HARQ feedback is enabled / disabled. For example, transmissions with HARQ feedback disabled can have a higher priority. If such transmissions have a lower priority, canceling them in the event of a conflict may result in the inability to receive the entire data.

[0131] As an example, DMRS bundling can also refer to the bundling of dedicated demodulation reference signals (DM-RS). In uplink transmission based on DMRS bundling, phase continuity needs to be guaranteed. Therefore, after the first type of transmission includes uplink transmission based on DMRS bundling, phase continuity can be guaranteed to a limited extent by increasing the priority.

[0132] The first device sending or receiving the first transmission can be replaced by the first device performing the first transmission. In some embodiments, when the transmission corresponding to the first resource includes a first type of transmission, the first transmission belongs to the first type of transmission. When the transmission corresponding to the first resource does not include a first type of transmission, the first transmission can be a transmission with higher priority in the second type of transmission.

[0133] It should be noted that the transmission corresponding to the first resource can refer to the transmission that is expected to be performed on the first resource, or (pre)configured to be performed on the first resource. When the first resource corresponds to multiple transmissions, it can mean that these multiple transmissions may be performed on the first resource. Since half-duplex mode requires sending and receiving at different times and frequencies, multiple transmissions may conflict on the first resource.

[0134] The first resource is one of a plurality of resources related to half-duplex communication. The plurality of resources related to half-duplex communication refers to multiple resources used by communication devices for half-duplex communication in a network. In some embodiments, the plurality of resources may be dedicated resources for half-duplex mode. In some embodiments, the plurality of resources may be resources that simultaneously support both half-duplex and full-duplex modes. In some embodiments, the plurality of resources may be undefined wireless resources.

[0135] For example, the first resource can be used for directional data transmission between the first device and the second device in an NTN.

[0136] In some embodiments, half-duplex communication includes uplink transmission, downlink reception (downlink transmission), and sidelink transmission based on a half-duplex mode. That is, the first resource can be an uplink transmission resource, a downlink transmission resource, or a sidelink transmission resource.

[0137] In some embodiments, multiple resources can be determined based on network configuration, the transmission requirements of terminal devices, or the TARs reported by terminal devices. The first resource determined by the TAR will be explained later in conjunction with various triggering times of the TAR.

[0138] For example, the multiple resources can be periodic transmission resources. For instance, the multiple resources can be multiple transmission windows of an SIB. For example, the multiple resources can include multiple transmission windows of SIB19, and the first resource can be any one or more transmission windows within the multiple transmission windows.

[0139] For example, multiple resources can be reserved resources set up by network devices or terminal devices for potential DL / UL conflicts. For instance, in NR NTNs where TA is not aligned, the guard time (GT) setting can support potential resource conflicts. If both DL and UL resources exist within the GT, the network side and the terminal side can consider these resources as potential DL / UL conflict resources.

[0140] For example, the multiple resources can be multiple time-frequency resources of arbitrary size, without limitation.

[0141] For example, the multiple resources may include multiple consecutive time-frequency resources, or multiple discontinuous time-frequency resources. The first resource may be a consecutive time-frequency resource or a discontinuous time-frequency resource.

[0142] For example, the multiple resources can be of various different types, with the first resource being one of these types. These various different types of resources can include periodically configured resources, pre-configured specific resources, resources used for specific transmissions, etc.

[0143] For example, the first resource can be any resource of a certain type. For instance, when multiple resources include multiple periodically configured transmission windows and dynamically configured resources, the first resource can be a portion of the transmission windows in the multiple periodically configured transmission windows.

[0144] In some embodiments, when a first resource corresponds to multiple transmissions, the first device needs to select one transmission from the multiple transmissions to perform. The transmission selected by the first device from the multiple transmissions corresponding to the first resource is the first transmission.

[0145] The first device sending or receiving a first transmission on a first resource according to a first priority order can be replaced by the first device determining the first transmission corresponding to the first resource according to a first priority order. Therefore, the first transmission can be the transmission with the highest priority among multiple transmissions corresponding to the first resource. In other words, the first device determines the first transmission among multiple transmissions in descending order of priority.

[0146] The first priority order is one of several priority orders used for these resources. These multiple priority orders can be set based on different priority principles. For example, multiple priority orders can also include a second priority order, the principles for which the second priority order is set are different from those for the first priority order.

[0147] When multiple priority sequences are used for multiple resources, the first or second device can select the corresponding transmission based on different priority sequences on different resources to avoid the low throughput of low-priority transmissions when only one priority sequence is available. In other words, the priority of any transmission is different on different resources. For example, for SIB19 downlink transmission, the priority is higher in some transmission windows and lower in others. Within higher-priority windows, the first device can perform downlink reception of SIB19 to ensure timely updates to ephemeris information; within lower-priority windows, the first device can perform uplink transmission to increase uplink throughput, thereby improving transmission efficiency.

[0148] As an example, multiple priority sequences can be mapped one-to-one with multiple resources. That is, multiple resources correspond to different priority sequences, so that the first device and the second device can select the transmission type according to the resources.

[0149] As an example, any one of the multiple priority orders can correspond to at least two of the multiple resources. That is, at least two of the multiple resources share a single priority order.

[0150] As an example, multiple resources within a certain time period can share a common priority order to ensure the transmission needs of a specific type of transmission or a specific service type within that time period.

[0151] As an example, when multiple resources include multiple SIB19 transmission windows, these multiple transmission windows can include two types of transmission windows corresponding to different priority orders. For example, the multiple transmission windows can include a first transmission window and a second transmission window. The priority order corresponding to the first transmission window includes downlink transmissions of SIB19 with the highest priority, while the priority order corresponding to the second transmission window includes downlink transmissions of SIB19 with the lowest priority. The first transmission window can also be referred to as a reserved SIB19 window.

[0152] For example, when the first resource is the first transmission window, the downlink transmission of SIB19 has the highest priority in the first priority order and the lowest priority in the second priority order. When the first resource is the second transmission window, the downlink transmission of SIB19 has the lowest priority in the first priority order and the highest priority in the second priority order.

[0153] For example, the downlink transmission of SIB19 has a higher priority order in the first transmission window than the downlink transmission of SIB19 in the second transmission window.

[0154] As an example, in NR NTN, for RedCap terminal equipment that supports HD FDD(e), the transmission in the first resource can be determined based on one or more priority rules for NTN-specific transmissions.

[0155] In some embodiments, the first priority order may include a higher priority for a first type of transmission than for a second type of transmission, and may also include a priority order of multiple first type of transmissions and / or a priority order of multiple second type of transmissions.

[0156] As an example, for the four types of transmissions in the first category of transmissions described above, the first priority order may include: downlink transmissions of SIB19 have the highest priority, followed by transmissions with HARQ feedback enabled / disabled, followed by TAR and / or TAR-triggered SRs, and uplink transmissions based on DMRS binding have the lowest priority.

[0157] As an example, for the four types of transmissions in the first category of transmissions described above, the first priority order may include: the priority of downlink transmissions of SIB19 is higher than the priority of transmissions with HARQ feedback enabled / disabled, the priority of TAR and / or TAR-triggered SRs, and the priority of uplink transmissions based on DMRS binding.

[0158] As an example, for the first type of transmission described above, the first priority order may include: transmissions with HARQ feedback enabled / disabled have a higher priority than TAR and / or TAR-triggered SRs and DMRS-based uplink transmissions.

[0159] As an example, for the first type of transmission described above, the first priority order may include: the priority of TAR and / or TAR-triggered SR is higher than the priority of uplink transmission based on DMRS binding.

[0160] As an example, for the four types of transmissions in the first category of transmissions described above, the first priority order may include: downlink transmissions of SIB19 have the lowest priority, followed by transmissions with HARQ feedback enabled / disabled, followed by TAR and / or TAR-triggered SRs, and uplink transmissions based on DMRS binding have the highest priority.

[0161] As an example, for the four types of transmissions in the first category of transmissions described above, the first priority order may include: transmissions with HARQ feedback enabled / disabled have the highest priority, followed by downlink transmissions of SIB19, followed by TAR and / or TAR-triggered SRs, and uplink transmissions based on DMRS binding have the lowest priority.

[0162] It should be understood that for multiple transmissions in the first category of transmissions, there can be multiple other sorting methods for the first priority order. Multiple sorting methods can correspond to multiple priority orders to determine the first transmission on multiple different resources.

[0163] Depend on Figure 7 It can be seen that when a transmission conflict occurs in the first resource, the first device can determine the first transmission according to the first priority order corresponding to the first resource, thereby reducing the impact of the conflict on the transmission efficiency.

[0164] As mentioned above, the first resource can be a periodically configured resource or a reserved resource. When the first resource is a reserved resource configured based on a protection time method, it can be associated with the first TAR. Compared to related technologies, the first TAR can be triggered based on more events to achieve finer TA reporting granularity. By introducing finer TA reporting granularity and a smaller trigger offset threshold, the ratio of unavailable resources can be reduced.

[0165] In some embodiments, when the reporting TA granularity is finer, the network device (second device) can receive the actual TA from the first device more promptly, thereby enabling more accurate resource configuration for uplink and downlink transmissions. This resource configuration may include configuring multiple resources, including the first resource, for the first device. Therefore, finer TA reporting granularity can effectively reduce uplink and downlink transmission conflicts.

[0166] In some embodiments, a smaller trigger offset threshold means that the first device will send a TAR when the difference between the actual TA and the initial TA is small, which also makes it easier for the second device to update the TA value in a timely manner.

[0167] In some embodiments, the network device may configure resources for various downlink transmissions communicating with the first device according to the first TAR. These various downlink transmissions may include PDCCH or PDSCH, and are not limited thereto.

[0168] In some embodiments, the network device may configure various uplink transmission resources for the first device according to the first TAR. The various uplink transmissions may include the SR mentioned above, transmissions with HARQ feedback enabled / disabled, and DMRS-based uplink transmissions, and may also include other data transmissions. The first resource is a resource used for any one of the various uplink transmissions, and is not limited thereto.

[0169] As an example, when the first resource is a reserved resource based on GT configuration, the TA value of the first TAR is used to determine the reserved resource.

[0170] In the embodiments of this application, the newly added triggering timing and enhanced reporting method of the first TAR can be used alone or in combination with the method for determining the first transmission on the first resource based on the first priority order. For example, after determining the first resource based on the first TAR, the first device can send or receive the first transmission on the first resource according to the first priority order described above.

[0171] As mentioned above, the first resource can be related to the first TAR sent by the first device, or it can be the downlink resource configured by the network device itself; this is not limited here. For ease of understanding, the following will combine... Figures 8 to 10 Introducing various types of primary resources.

[0172] In some embodiments, the first resource may include reserved resources determined based on the protection time (GT). As mentioned above, the resource corresponding to the protection time can be referred to as the resource with potential DL / UL conflicts, i.e., the potentially conflicting resource. As an example, the value of GT can be set large enough to eliminate synchronization errors between network devices and terminal devices caused by TA misalignment.

[0173] In some embodiments, the terminal device and network device are aware that resource conflicts will occur within the time period corresponding to the GT, so the protection time can be configured between conflicting transmissions to avoid conflicts. For example, the GT can be configured between DL transmissions and UL transmissions.

[0174] In some embodiments, the protection time can be determined based on the first TA value in the first TAR. The first TA value is the UL TA sent by the terminal device. The network device and the terminal device can determine the DL / UL conflicting resources based on the GT under the assumption of the same UL TA. For example, the network device and the terminal device can assume the TA value in the public TA or the latest TA report as the UL TA, and then determine potential DL / UL conflicting resources based on the GT. For example, under the assumption of a given UL TA, DL / UL resources may exist within the GT. That is, the first resource corresponding to the GT may be used for DL / UL transmission.

[0175] As an example, determining whether DL and UL transmissions overlap in the time domain is based on the actual TA known to both the network device and the first device, which is determined by the latest TAR reported by the first device. That is, the protection time is determined based on the current first TAR, rather than the initial TA of the first device, thus avoiding TA mismatch issues. For example, the network device and the first device can initially determine the protection time based on the latest reported actual TA (…). The time interval (GAP) between the actual TA and the initial TA is used to determine this. This interval can be the interval between the actual TA and the initial TA, or the interval (difference) between the current TA and the previous TA. During the protection period, UL and DL transmission resources will not conflict.

[0176] In some embodiments, the protection period begins at [time]. The protection period ends at [time]. ,in, This indicates the current TA value of the first device. This represents the difference between the current TA value and the previous TA value. It should be understood that the current TA value of the first device can be the actual parameter that best reflects the current situation.

[0177] Optionally, the current TA value of the first device can be the first TA value in the first TAR, or it can be a dedicated TA value of the first device used to determine the first TA value. For example, It can be as described above. It can also be the difference between two consecutive dedicated TA values.

[0178] As an example, the first resource may include the resource corresponding to the protection time. When the protection time corresponds to multiple transmissions, the first device can determine the first transmission among the multiple transmissions according to a first priority order. The transmissions other than the first transmission among the multiple transmissions are executed on resources after the protection time. The multiple transmissions have been described above and will not be repeated here.

[0179] As an example, when multiple transmissions include DL transmission and UL transmission, if the first priority order indicates that the priority of DL transmission is higher than the priority of UL transmission, the first transmission is DL transmission; if the first priority order indicates that the priority of UL transmission is higher than the priority of DL transmission, the first transmission is UL transmission.

[0180] As a sub-implementation of the above embodiments, when the first transmission is a DL transmission, the first device sends a UL transmission on resources after the protection time; when the first transmission is a UL transmission, the first device receives a DL transmission on resources after the protection time.

[0181] To facilitate understanding, the following will be combined with... Figure 8 An example is provided. Figure 8 The first device is the UE, and the second device is the network device in the NTN. See also Figure 8 In NTN, the second device configures DL resources 810 for 3 time units based on the initial TA to send DL transmissions. The first device configures UL resources 820 for 5 time units based on the actual TA. Potential conflicting resources based on GT are configured according to the actual TA to avoid conflicts caused by differences between the actual TA and the initial TA.

[0182] Figure 8 Within the GT (Gateway to Track) system, the priority order is: UL (Ultimate Length) transmission has a higher priority than DL (Deep Length) transmission. For example... Figure 8 As shown, the first transmission is a UL transmission that occupies resource 820. The actual DL transmission 830 is executed on resources after the protection time.

[0183] Furthermore, if the TA (Transmission Time Acquisition) is not updated in a timely manner, the actual TA will have a certain gap from the initial TA. Therefore, conflicting resources in the uplink and downlink need to be based on the actual TA. Setting GT (Gateway Tolerance) on conflicting resources allows DL (Deep Transmission) to avoid conflicting resources with the uplink based on the first priority order, enabling normal transmission and reception by the first device.

[0184] In some embodiments, the protection time can be determined based on the change in distance between the first device and the network device. When the network device is a satellite in an NTN, the faster the first device moves, the greater the Doppler shift and the greater the deviation in TA estimation. Therefore, the value of GT can be set to a range, such as 1-14 slots.

[0185] In some embodiments, the distance between the first device and the satellite can be represented by the elevation angle. Assuming the line connecting the terminal device and the satellite is the first line, and the line connecting the terminal device and the satellite's ground projection is the second line, the elevation angle can be the angle between the first and second lines. Assuming the satellite's altitude is... h The horizontal distance from the first device to the satellite's projection on the ground is d The elevation angle of the first device θ for: ).

[0186] As an example, the elevation angle can range from 0° to 90°. The protection time can be determined based on the elevation angle between the first device and the satellite in the NTN. A larger elevation angle means the first device is closer to the satellite, and the protection time can be relatively shorter. Conversely, a smaller elevation angle means the first device is farther from the satellite, and the protection time can be relatively longer.

[0187] As an example, the protection time can be determined based on the change in the elevation angle between the first device and the satellite in the NTN within a first time period. This first time period can be configured by the network device or by a higher layer; it is not limited here. In other words, the GT (Gross Threshold) can be determined based on the magnitude of the change in the elevation angle between the first device and the satellite.

[0188] As an example, the change in elevation angle within the first time period falls within multiple value ranges. These multiple value ranges include a first value range and a second value range, where the first value range corresponds to the first protection time and the second value range corresponds to the second protection time.

[0189] In the example above, when the upper limit of the first value range is less than the upper limit of the second value range, the length of the first protection time is less than the length of the second protection time. Alternatively, when the lower limit of the first value range is less than the lower limit of the second value range, the length of the first protection time is less than the length of the second protection time.

[0190] In the above example, when the upper limit of the first value range is greater than the upper limit of the second value range, the length of the first protection time is greater than the length of the second protection time. Alternatively, when the lower limit of the first value range is greater than the lower limit of the second value range, the length of the first protection time is greater than the length of the second protection time.

[0191] In the example above, when the lower limit of the first value range is greater than or equal to the upper limit of the second value range, the length of the first protection time is greater than the length of the second protection time. That is, the larger the lower limit of the value range, the longer the protection time, as shown in Table 1. For example, Table 1 shows the values ​​of GT based on... θ The magnitude of the change in value ( (This is a determined implementation method.)

[0192] Table 1 As an example, GT can be set to a fixed value. For example, with The maximum value of the change ( This is used to set a fixed value to ensure that UL and DL transmissions do not conflict. For example, It can be 90°.

[0193] As an example, when an actual TA is misaligned and the actual conflicting resource is greater than the GT, exception handling is required. For instance, when the GT is no longer valid, the first device can send a TA report to the network device to reconfigure the GT value.

[0194] As mentioned above, the first resource can be a portion of the multiple transmission windows of SIB19, i.e., the first transmission window. To ensure the timing of the first device reading SIB19, it can be done as follows: Figure 9 The diagram shows a subset of the SIB19 transmission windows (reserved SIB19 transmission windows). These reserved SIB19 transmission windows constitute the first transmission window. As mentioned earlier, during the first transmission window, the first device can prioritize the reception of SIB19-related PDCCH and PDSCH. In other words, downlink transmissions of SIB19 have a higher priority.

[0195] As an example, the downlink transmission of SIB19 has a first transmission window with the highest priority that can be configured for a specific period of time.

[0196] As an example, the multiple transmission windows of SIB19 are divided into one or more transmission windows belonging to the first transmission window and one or more transmission windows belonging to the second transmission window. Within the first transmission window, SIB19 downlink transmission has a higher priority than UL transmission. That is, within the reserved window, the first device must wait for SIB19 transmission and prioritize receiving SIB19 data, but cannot transmit UL data to effectively avoid conflicts. Within the second transmission window, the first device can directly transmit UL data.

[0197] As an example, the first resource, which includes multiple reserved resources of SIB19, can be sent via broadcast messages.

[0198] As an example, a network device can be configured with two first and transmission windows within each 1024 subframes. In response, a first device supporting half-duplex communication will attempt to read SIB19 during one of these two transmission windows.

[0199] To facilitate understanding, the following will be combined with... Figure 9 The implementation method is illustrated by example. Figure 9 The seven SIB19 transmission windows are designated as windows 901 to 907. Windows 902 and 906 are reserved SIB19 transmission windows (first transmission windows), while the others are second transmission windows. Within windows 902 and 906, the first device primarily reads SIB19 data, therefore downlink transmissions of SIB19 have the highest priority. Within windows 901, 903 through 905, and 907, the second device still transmits SIB19 data, but the first device does not read it; instead, it directly performs uplink transmissions, therefore downlink transmissions of SIB19 have the lowest priority.

[0200] In some embodiments, for NR NTN, the retention duration of UL is unknown to the NTN network equipment due to the unknown UE TA. However, the NTN network equipment knows the minimum TA of the cell (TA). min ) and maximum TA (TA) max Therefore, network devices can use this TA range to determine the duration of the corresponding SI in SIB19.

[0201] The following is combined Figure 10 Provided as an example, Figure 10 The UE side is the first device side, and the NTN side is the second device side. TX-RX N is the time when the first device performs the handover from sending to receiving. RX-TX It is the time when the first device line receives the sent handover notification. T C This represents the minimum sampling time period in the system. Switching time is not included in the conflict time.

[0202] like Figure 10 As shown, for the second device, SIB19 is transmitted through multiple downlink time units (e.g., symbols) corresponding to the SI window, the starting point of these multiple downlink time units is SIB19. start The termination point is SIB19 end During this time period, there will be no conflict with the uplink, and the SI subset of SIB19 can be sent during this period.

[0203] Figure 10 The TA in the text belongs to the TA range of the cell, that is, [TA] min TA max Based on this TA range, and from SIB19 start -N TX-RX T C +TA minThe initial six uplink time units 1020, whose durations overlap, will conflict with the downlink reception of SIB19. Therefore, for all first devices within the NTN cell, from SIB19... start -N TX-RX T C +TA min To SIB19 end -N RX-TX T C +TA max Uplink time units outside the specified duration will not conflict with SIB19 downlink reception. Therefore, in Figure 10 Within a timeframe defined by the TA range, downlink reception of SIB19 can have a higher priority. That is, the first device does not perform uplink transmissions during this timeframe, thus ensuring correct reception of SIB19.

[0204] The above text combined Figures 1 to 10 The method embodiments of this application are described in detail below. Figures 11 to 15 The present application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the apparatus embodiments correspond to the descriptions of the method embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0205] Figure 11 This is a schematic block diagram of an apparatus for wireless communication according to an embodiment of this application. The apparatus 1100 can be any of the first devices described above. Figure 11 The device 1100 shown includes a first transceiver unit 1110.

[0206] The first transceiver unit 1110 can be used to send a first TAR according to first information; wherein, the first information includes the service time of the first device and / or the service type of the first device.

[0207] Optionally, the first information may also include one or more of the following: an indication sent by a higher layer to trigger a TAR; a TA offset threshold configured by a higher layer.

[0208] Optionally, the first transceiver unit 1110 is further configured to send a first TAR when the first device receives an indication to trigger a TAR and the service time of the first device is greater than a first threshold; or, not to send a first TAR when the service time of the first device is equal to or less than the first threshold.

[0209] Optionally, the first device corresponds to the serving cell of the NTN, and the first threshold is determined based on the service time of the satellite corresponding to the serving cell.

[0210] Optionally, the first device corresponds to the serving cell of the NTN, and the service time of the first device is determined based on the location of the first device and / or the service time of the satellite corresponding to the serving cell.

[0211] Optionally, the service type of the first device is related to the TA offset threshold, and the device 1100 also includes a processing unit that can be used to set a first timer related to the TA offset threshold according to the service type.

[0212] Optionally, the first TA value in the first TAR is determined based on the TA value in the TA command, the first offset value, the common TA, and the dedicated TA value of the first device. The first transceiver unit 1110 is also used to send the dedicated TA value of the first device through the first byte segment corresponding to the first TAR when the first TAR is triggered, or the difference between the first TA value and the second TA value; wherein the second TA value is the TA value in the second TAR sent by the first device last time.

[0213] Optionally, the first byte segment corresponding to the first TAR is divided into at least two second byte segments, one of which is used to send the dedicated TA value of the first device, or the difference between the first TA value and the second TA value in the first TAR; the second TA value is the TA value in the second TAR sent by the first device last time.

[0214] Optionally, the first TAR is used to determine the first resource, and the first transceiver unit 1110 is further used to send or receive the first transmission on the first resource according to the first priority order; wherein, the first resource is one of a plurality of resources related to half-duplex communication, the first priority order is one of a plurality of priority orders, the plurality of priority orders are used for a plurality of resources, and the first priority order corresponds to the first resource.

[0215] Optionally, the first transceiver unit 1110 in device 1100 can be a transceiver 1530, and device 1100 may further include a processor 1510 and a memory 1520, specifically as follows: Figure 15 As shown.

[0216] Figure 12 This is a schematic block diagram of another device for wireless communication according to an embodiment of this application. The device 1200 can be any of the second devices described above. Figure 12 The device 1200 shown includes a second transceiver unit 1210.

[0217] The second transceiver unit 1210 can be used to receive a first TAR sent by the first device; wherein the first TAR is triggered according to first information, the first information including the service time of the first device, and / or the service type of the first device.

[0218] Optionally, the first information may also include one or more of the following: an indication sent by a higher layer to trigger a TAR; a TA offset threshold configured by a higher layer.

[0219] Optionally, when the first device receives an instruction to trigger a TAR and the service time of the first device is greater than a first threshold, the first TAR is triggered; or, when the service time of the first device is equal to or less than the first threshold, the first TAR is not triggered.

[0220] Optionally, the second device includes a satellite in the NTN, and the first threshold is determined based on the satellite's service time.

[0221] Optionally, the second device includes a satellite in the NTN, and the service time of the first device is determined based on the location of the first device and / or the service time of the satellite.

[0222] Optionally, the service type of the first device is related to the TA offset threshold, the TA offset threshold is related to the first timer, and the first timer is set according to the service type.

[0223] Optionally, the first TA value in the first TAR is determined based on the TA value in the TA command, the first offset value, the common TA, and the dedicated TA value of the first device. The second transceiver unit 1210 is further configured to receive the dedicated TA value of the first device through the first byte segment corresponding to the first TAR when the first TAR is triggered, or the difference between the first TA value and the second TA value; wherein the second TA value is the TA value in the second TAR sent by the first device last time.

[0224] Optionally, the first byte segment corresponding to the first TAR is divided into at least two second byte segments, one of which is used to send the dedicated TA value of the first device, or the difference between the first TA value and the second TA value in the first TAR; the second TA value is the TA value in the second TAR sent by the first device last time.

[0225] Optionally, the first TAR is used to determine the first resource, and the second transceiver unit 1210 is also used to receive or send the first transmission on the first resource; wherein, the first resource is one of a plurality of resources related to half-duplex communication, the first transmission is determined according to a first priority order, the first priority order is one of a plurality of priority orders, the plurality of priority orders are used for a plurality of resources, and the first priority order corresponds to the first resource.

[0226] Optionally, the second transceiver unit 1210 in device 1200 can be a transceiver 1530, and device 1200 may further include a processor 1510 and a memory 1520, specifically as follows: Figure 15 As shown.

[0227] Figure 13 This is a schematic block diagram of an apparatus for wireless communication according to an embodiment of this application. The apparatus 1300 can be any of the first devices described above. Figure 13 The device 1300 shown includes a third transceiver unit 1310.

[0228] The third transceiver unit 1310 can be used to send or receive a first transmission on a first resource according to a first priority order; wherein, the first resource is one of a plurality of resources related to half-duplex communication, the first priority order is one of a plurality of priority orders, the plurality of priority orders are used for a plurality of resources, and the first priority order corresponds to the first resource.

[0229] Optionally, the first transmission is one of a variety of transmissions, which includes a first type of transmission and a second type of transmission other than the first type of transmission. The first priority order includes a higher priority for the first type of transmission than for the second type of transmission. The first type of transmission includes one or more of the following: downlink transmission of SIB; TAR and / or TAR-triggered SR; transmission with HARQ feedback enabled / disabled; and uplink transmission based on DMRS bundling.

[0230] Optionally, the first type of transmission also includes downlink transmissions of SIB19, with the first priority order including downlink transmissions of SIB19 having a higher priority than transmissions with HARQ feedback enabled / disabled, TAR and / or TAR-triggered SRs, and uplink transmissions based on DMRS bundles.

[0231] Optionally, the first priority order includes that transmissions with HARQ feedback enabled / disabled have a higher priority than TAR and / or TAR-triggered SRs and DMRS-based uplink transmissions.

[0232] Optionally, the first priority order includes the priority of TAR and / or TAR-triggered SRs being higher than the priority of uplink transmissions based on DMRS bundles.

[0233] Optionally, the first resource is related to the first TAR sent by the first device, and the first TAR is triggered based on one or more of the following information: an indication to trigger the TAR sent by a higher layer; a TA offset threshold configured by a higher layer; the service time of the first device; and the service type of the first device.

[0234] Optionally, the first resource includes the resource corresponding to the protection time. When the protection time corresponds to multiple transmissions, the device 1300 further includes a determining unit, which can be used to determine the first transmission among the multiple transmissions according to a first priority order; wherein, the transmissions other than the first transmission among the multiple transmissions are executed on the resource after the protection time.

[0235] Optionally, the protection time is determined based on the elevation angle between the first device and the satellite in the NTN and / or the change in elevation angle during the first time period.

[0236] Optionally, the change in elevation angle within the first time period falls within multiple value ranges, including a first value range and a second value range. The first value range corresponds to the first protection time, and the second value range corresponds to the second protection time. When the lower limit of the first value range is greater than or equal to the upper limit of the second value range, the length of the first protection time is greater than the length of the second protection time.

[0237] Optionally, the protection period starts at the time specified in the original text. The protection period ends at [time]. ,in, This indicates the current TA value of the first device. This represents the difference between the current TA value and the previous TA value.

[0238] Optionally, the multiple resources include multiple transmission windows of SIB19, including a first transmission window and a second transmission window. The priority order corresponding to the first transmission window is that the downlink transmission of SIB19 has the highest priority, and the priority order corresponding to the second transmission window is that the downlink transmission of SIB19 has the lowest priority.

[0239] Optionally, the third transceiver unit 1310 in device 1300 can be a transceiver 1530, and device 1300 may also include a processor 1510 and a memory 1520, specifically as follows: Figure 15 As shown.

[0240] Figure 14 This is a schematic block diagram of another device for wireless communication according to an embodiment of this application. The device 1400 can be any of the second devices described above. Figure 14 The device 1400 shown includes a fourth transceiver unit 1410.

[0241] The fourth transceiver unit 1410 can be used to receive or send a first transmission on a first resource; wherein the first resource is one of multiple resources related to half-duplex communication, the first transmission is determined according to a first priority order, the first priority order is one of multiple priority orders, the multiple priority orders are used for multiple resources, and the first priority order corresponds to the first resource.

[0242] Optionally, the first transmission is one of a variety of transmissions, which includes a first type of transmission and a second type of transmission other than the first type of transmission. The first priority order includes a higher priority for the first type of transmission than for the second type of transmission. The first type of transmission includes one or more of the following: downlink reception of SIB; TAR and / or TAR-triggered SR; transmission with HARQ feedback enabled / disabled; and uplink transmission based on DMRS bundling.

[0243] Optionally, the first type of transmission also includes downlink reception of SIB19, with the first priority order including downlink reception of SIB19 having a higher priority than transmissions with HARQ feedback enabled / disabled, TAR and / or TAR-triggered SR, and uplink transmissions based on DMRS bundles.

[0244] Optionally, the first priority order includes that transmissions with HARQ feedback enabled / disabled have a higher priority than TAR and / or TAR-triggered SRs and DMRS-based uplink transmissions.

[0245] Optionally, the first priority order includes the priority of TAR and / or TAR-triggered SRs being higher than the priority of uplink transmissions based on DMRS bundles.

[0246] Optionally, the first resource is related to the first TAR sent by the first device, and the first TAR is triggered based on one or more of the following information: an indication to trigger the TAR sent by a higher layer; a TA offset threshold configured by a higher layer; the service time of the first device; and the service type of the first device.

[0247] Optionally, the first resource includes the resource corresponding to the protection time. When the protection time corresponds to multiple transmissions, the first priority order is used to determine the first transmission among the multiple transmissions. Among the multiple transmissions, the transmissions other than the first transmission are executed on the resources after the protection time.

[0248] Optionally, the protection time is determined based on the elevation angle between the first device and the satellite in the NTN and / or the change in elevation angle during the first time period.

[0249] Optionally, the change in elevation angle within the first time period falls within multiple value ranges, including a first value range and a second value range. The first value range corresponds to the first protection time, and the second value range corresponds to the second protection time. When the lower limit of the first value range is greater than or equal to the upper limit of the second value range, the length of the first protection time is greater than the length of the second protection time.

[0250] Optionally, the protection period starts at the time specified in the original text. The protection period ends at [time]. ,in, This indicates the current TA value of the first device. This represents the difference between the current TA value and the previous TA value.

[0251] Optionally, the multiple resources include multiple transmission windows of SIB19, the multiple transmission windows include a first transmission window and a second transmission window, the priority order corresponding to the first transmission window is that downlink reception of SIB19 has the highest priority, and the priority order corresponding to the second transmission window is that downlink reception of SIB19 has the lowest priority.

[0252] Optionally, the fourth transceiver unit 1410 in device 1400 can be a transceiver 1530, and device 1400 may also include a processor 1510 and a memory 1520, specifically as follows: Figure 15 As shown.

[0253] Figure 15 The diagram shown is a structural schematic of a communication device according to an embodiment of this application. Figure 15 The dashed lines indicate that the unit or module is optional. The device 1500 can be used to implement the methods described in the above method embodiments. The device 1500 can be a chip, a terminal device, or a network device.

[0254] Apparatus 1500 may include one or more processors 1510. The processor 1510 may support apparatus 1500 in implementing the methods described in the preceding method embodiments. The processor 1510 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.

[0255] The apparatus 1500 may further include one or more memories 1520. The memories 1520 store a program that can be executed by the processor 1510, causing the processor 1510 to perform the methods described in the preceding method embodiments. The memories 1520 may be independent of the processor 1510 or integrated into the processor 1510.

[0256] The device 1500 may also include a transceiver 1530. The processor 1510 can communicate with other devices or chips via the transceiver 1530. For example, the processor 1510 can send and receive data with other devices or chips via the transceiver 1530.

[0257] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a first or second device provided in this application, and the program causes a computer to perform the methods executed by the first or second device in various embodiments of this application.

[0258] 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 medium can 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)).

[0259] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a first device or a second device provided in this application embodiment, and the program causes a computer to perform the methods executed by the first device or the second device in various embodiments of this application.

[0260] 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.

[0261] This application also provides a computer program. This computer program can be applied to the first or second device provided in this application, and causes the computer to perform the methods executed by the first or second device in various embodiments of this application.

[0262] In this application, the terms "system" and "network" are used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0263] In the embodiments of this application, the term "instruction" 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.

[0264] In the embodiments of this application, the term "correspondence" may indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0265] In the embodiments of this application, "predefined" or "preconfigured" 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.

[0266] In the 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 these protocols.

[0267] In the embodiments of this application, determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0268] In the embodiments of this application, the term "and / or" 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 document generally indicates that the preceding and following related objects have an "or" relationship.

[0269] In the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0270] 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.

[0271] 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.

[0272] 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.

[0273] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, include: The first device sends a first advance time report (TAR) based on the first information, and the first device supports half-duplex communication mode. The first information includes one or more of the following: the indication of triggering TAR at a higher layer, the timed advance TA offset threshold configured at a higher layer, the service time of the first device, and the service type of the first device; The first TAR is used to determine the protection time, and the reserved resources determined based on the protection time are used to determine the first resource. The first resource is used for the first device and the second device to perform directional data transmission in a non-terrestrial network (NTN).

2. The method according to claim 1, characterized in that, The reserved resources include uplink resources and downlink resources, and the first TAR is used to determine whether the uplink resources and the downlink resources overlap in the time domain.

3. The method according to claim 1 or 2, characterized in that, The first byte segment corresponding to the first TAR is divided into at least two second byte segments, one of which is used to send the dedicated TA value of the first device, or the difference between the first TA value and the second TA value in the first TAR; The second TA value is the TA value in the second TAR sent by the first device in the last time.

4. The method according to claim 1 or 2, characterized in that, The method further includes: The first device sends or receives a first transmission on the first resource according to a first priority order; Wherein, the first resource is one of a plurality of resources related to half-duplex communication, the first priority order is one of a plurality of priority orders, the plurality of priority orders are used for the plurality of resources, and the first priority order corresponds to the first resource.

5. A method for wireless communication, characterized in that, include: The second device receives a first advance time report (TAR) sent by the first device, and the first device supports half-duplex communication mode. The first TAR is triggered based on first information, which includes one or more of the following: a higher-level indication to trigger the TAR, a higher-level configured timed advance TA offset threshold, the service time of the first device, and the service type of the first device. The first TAR is used to determine the protection time, and the reserved resources determined based on the protection time are used to determine the first resource. The first resource is used for the first device and the second device to perform directional data transmission in a non-terrestrial network (NTN).

6. The method according to claim 5, characterized in that, The reserved resources include uplink resources and downlink resources, and the first TAR is used to determine whether the uplink resources and the downlink resources overlap in the time domain.

7. The method according to claim 5 or 6, characterized in that, The method further includes: The second device receives or sends a first transmission on the first resource; Wherein, the first resource is one of a plurality of resources related to half-duplex communication, the first transmission is determined according to a first priority order, the first priority order is one of a plurality of priority orders, the plurality of priority orders are used for the plurality of resources, and the first priority order corresponds to the first resource.

8. A device for wireless communication, characterized in that, The device is a first device, which includes a transceiver, a memory, and a processor. The memory is used to store a program, and the processor is used to call the program in the memory and control the transceiver to receive or send signals so that the first device performs the method as described in any one of claims 1-4.

9. A device for wireless communication, characterized in that, The device is a second device, which includes a transceiver, a memory, and a processor. The memory is used to store a program, and the processor is used to call the program in the memory and control the transceiver to receive or send signals so that the second device performs the method as described in any one of claims 5-7.

10. A communication device, characterized in that, Includes units or modules for performing the method as described in any one of claims 1-4 or 5-7.

Images