Method and apparatus for wireless communication

Abstract

A method and apparatus for wireless communication are provided to facilitate reducing transmission collisions when a communication device communicates in half duplex. The method includes transmitting, by a first device, a first TAR according to first information, wherein the first information comprises a traffic service time of the first device, and / or a traffic type of the first device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a method and apparatus for wireless communication. BACKGROUND

[0002] Some communication systems (for example, non-terrestrial network (NTN) systems) have large transmission delays. In these communication systems, if a communication device communicates in a half-duplex mode, some uplink transmission of the communication device may conflict with downlink reception, or may conflict with other uplink transmissions. Therefore, in these communication systems, how to solve the transmission conflict in the half-duplex mode becomes a technical problem to be solved. SUMMARY

[0003] The present application provides a method and apparatus for wireless communication. The following introduces each aspect of the embodiments of the present application.

[0004] In a first aspect, a method for wireless communication is provided, comprising: a first device sending a first timing advance report (TAR) according to first information; wherein the first information comprises service time of a service of the first device, and / or a service type of the first device.

[0005] 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, and the first information comprises service time of a service of the first device, and / or a service type of the first device.

[0006] In a third aspect, an apparatus for wireless communication is provided, the apparatus being a first device, the first device comprising: a first transceiver, configured to send a first TAR according to first information; wherein the first information comprises service time of a service of the first device, and / or a service type of the first device.

[0007] In a fourth aspect, an apparatus for wireless communication is provided, the apparatus being a second device, the second device comprising: a second transceiver, configured to receive a first TAR sent by a first device; wherein the first TAR is triggered according to first information, and the first information comprises service time of a service of the first device, and / or a service type of the first device.

[0008] In a fifth aspect, a communication apparatus is provided, comprising a memory and a processor, the memory being configured to store a program, and the processor being configured to invoke the program in the memory to perform the method according to the first aspect or the second aspect.

[0009] In a sixth aspect, there is provided an apparatus comprising a processor configured to invoke a program from a memory to perform the method of the first aspect or the second aspect.

[0010] In a seventh aspect, there is provided a chip comprising a processor configured to invoke a program from a memory to cause a device in which the chip is installed to perform the method of the first aspect or the second aspect.

[0011] In an eighth aspect, there is provided a computer-readable storage medium having stored thereon a program, the program causing a computer to perform the method of the first aspect or the second aspect.

[0012] In a ninth aspect, there is provided a computer program product comprising a program, the program causing a computer to perform the method of the first aspect or the second aspect.

[0013] In a tenth aspect, there is provided a computer program, the computer program causing a computer to perform the method of the first aspect or the second aspect.

[0014] In the embodiments of the present application, the first device sends the first TAR according to its service service time and / or service type. Compared with the method of triggering the first TAR according to the higher layer configuration, the method increases the event of triggering the first TAR to realize finer reporting granularity of the TAR, which helps to reduce the transmission conflict and reduce the rate of unavailable resources. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a wireless communication system to which the embodiments of the present application are applied.

[0016] Figure 2 is an NTN system to which the embodiments of the present application are applied.

[0017] Figure 3 is another NTN system to which the embodiments of the present application are applied.

[0018] Figure 4 is a schematic diagram of downlink transmission and uplink transmission conflict.

[0019] Figure 5 is a schematic diagram of timing advance change of a serving cell in an NTN system.

[0020] Figure 6 is a flowchart of a method for wireless communication provided by the embodiments of the present application.

[0021] Figure 7 is a flowchart of another method for wireless communication provided by the embodiments of the present application.

[0022] Figure 8is Figure 7 a schematic diagram of one possible implementation of the method shown.

[0023] Figure 9 is Figure 7 a schematic diagram of another possible implementation of the method shown.

[0024] Figure 10 is Figure 7 a schematic diagram of yet another possible implementation of the method shown.

[0025] Figure 11 is a structural schematic diagram of an apparatus for wireless communication provided by an embodiment of the present application.

[0026] Figure 12 is a structural schematic diagram of another apparatus for wireless communication provided by an embodiment of the present application.

[0027] Figure 13 is a structural schematic diagram of yet another apparatus for wireless communication provided by an embodiment of the present application.

[0028] Figure 14 is a structural schematic diagram of yet another apparatus for wireless communication provided by an embodiment of the present application.

[0029] Figure 15 is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative labor on the basis of the embodiments in the present application shall fall within the scope of the present application.

[0031] The embodiments of the present application can be applied to various communication systems. For example, the embodiments of the present application can be applied to a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), a long term evolution (LTE) system, an advanced long term evolution (LTE-A) system, a new radio (NR) system, an evolved system of the NR system, an LTE-based access to unlicensed spectrum (LTE-U) system, an NR-based access to unlicensed spectrum (NR-U) system, a universal mobile telecommunications system (UMTS), a wireless local area networks (WLAN), a wireless fidelity (WiFi), a 5th-generation (5G) system. The embodiments of the present application can also be applied to other communication systems, for example, a future communication system. The future communication system can be, for example, a 6th-generation (6G) mobile communication system, or a satellite communication system, etc.

[0032] The conventional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, the communication system can not only support traditional cellular communication, but also support one or more types of other types of communication. For example, the communication system can support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), enhanced MTC (eMTC), vehicle to vehicle (V2V) communication, and vehicle to everything (V2X) communication, and the like. The embodiments of the present application can also be applied to a communication system supporting the above communication modes.

[0033] The communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) network deployment scenario.

[0034] The communication system in the embodiments of the present application can be applied to unlicensed spectrum. The unlicensed spectrum can also be considered as shared spectrum. Alternatively, the communication system in the embodiments of the present application can also be applied to licensed spectrum. The licensed spectrum can also be considered as dedicated spectrum.

[0035] The embodiments of the present application can be applied to an NTN system. 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 narrow band internet of things (NB-IoT)-based NTN system.

[0036] The communication system can include one or more terminal devices. The terminal device mentioned in the embodiments of the present application can also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment, etc.

[0037] In some embodiments, the terminal device can be a station (STATION, ST) in a WLAN. In some embodiments, the terminal device can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system (e.g., an NR system), or a terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0038] In some embodiments, the terminal device can be a device that provides voice and / or data connectivity to a user. For example, the terminal device can be a handheld device having wireless connection function, an in-vehicle device, etc. As some specific examples, the terminal device can be a mobile phone, a Pad, a notebook computer, a palmtop computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0039] In some embodiments, the terminal device can be deployed on land. For example, the terminal device can be deployed indoors or outdoors. In some embodiments, the terminal device can be deployed on water surface, such as on a ship. In some embodiments, the terminal device can be deployed in air, such as on an airplane, a balloon, and a satellite.

[0040] In addition to the terminal device, the communication system can also include one or more network devices. The network device in the embodiments of the present application can be a device for communicating with the terminal device, which can also be referred to as an access network device or a radio access network device. The network device can be, for example, a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) that accesses the terminal device to the wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, access point (AP), transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, auxiliary station SeNB, multi-standard 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. The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station can also refer to a communication module, modem, or chip used in the aforementioned devices or apparatuses. The base station can also be a mobile switching center and a device that performs the function of a base station in D2D, V2X, M2M communication, a network side device in a 6G network, a device that performs the function of a base station in a future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0041] The base station can be fixed or mobile. For example, a helicopter or a drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or a drone can be configured to act as a device that communicates with another base station.

[0042] In some deployments, the network device in the embodiments of the present application can refer to a CU or a DU, or the network device includes a CU and a DU. The gNB can also include an AAU.

[0043] By way of example and not limitation, in embodiments of the present application, a network device can have a mobile characteristic, for example, the network device can be a mobile device. In some embodiments of the present application, the network device can be a satellite, a balloon station. In some embodiments of the present application, the network device can also be a base station disposed at a location on land, water, etc.

[0044] In embodiments of the present application, a network device can provide service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc., and these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

[0045] By way of example, Figure 1 An architecture diagram of a communication system is provided for embodiments of the present application. As Figure 1 shown, the communication system 100 can include a network device 110, which can be a device that communicates with a terminal device 120 (or a communication terminal, a terminal). The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.

[0046] Figure 1 By way of example, one network device and two terminal devices are shown. In some embodiments of the present application, the communication system 100 can include multiple network devices and each network device can include other numbers of terminal devices within its coverage range, which is not limited.

[0047] By way of example, Figure 2 An architecture diagram of the NTN system mentioned above. Figure 2 The NTN system 200 shown uses a satellite 210 as an air platform. As Figure 2 shown, the satellite radio access network includes a satellite 210, a service link 220, a feeder link 230, a terminal device 240, a gateway (GW) 250, and a network 260 including a base station and a core network.

[0048] The satellite 210 is a space platform based spacecraft. The service link 220 refers to the link between the satellite 210 and the terminal device 240. The feeder link 230 refers to the link between the gateway 250 and the satellite 210. The gateway 250, which is based on the earth, connects the satellite 210 to the base station or the core network, depending on the selection of the NTN architecture.

[0049] Figure 2 The NTN architecture shown is a bent pipe transponder architecture. In this architecture, the base station is located on the earth behind the gateway 250, and the satellite 210 acts as a relay. The satellite 210 operates as a repeater that forwards the feeder link 230 signal to the service link 220, or, forwards the service link 220 signal to the feeder link 230. That is, the satellite 210 does not have the functionality of a base station, and the communication between the terminal device 240 and the base station in the network 260 needs to be relayed through the satellite 210.

[0050] Exemplarily, Figure 3 is a diagram of another architecture of the NTN system. As Figure 3 shown, the satellite radio access network 300 includes a satellite 310, a service link 320, a feeder link 330, a terminal device 340, a gateway 350, and a network 360. Unlike Figure 2 , the satellite 310 has a base station 312, and the network 360 behind the gateway 350 only includes a core network.

[0051] Figure 3 The NTN architecture shown is a regenerative transponder architecture. In this architecture, the satellite 310 carries the base station 312, which can be directly connected to the core network based on the earth through the link. The satellite 310 has the function of a base station, and the terminal device 340 can communicate directly with the satellite 310. Therefore, the satellite 310 can be referred to as a network device.

[0052] In Figure 2 and Figure 3 the communication system of the architecture shown can include multiple network devices, and each network device can include other numbers of terminal devices within its coverage, which are not limited in the embodiments of the present application.

[0053] In the embodiments of the present application, Figures 1 to 3 The communication system shown can also include a mobility management entity (MME), an access and mobility management function (AMF), and other network entities, which are not limited in the embodiments of the present application.

[0054] It should be understood that the devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. For example,Figure 1 The illustrated communication system 100 is an example, and the communication devices can include network devices 110 and terminal devices 120 having communication functions, and the network devices 110 and the terminal devices 120 can be the specific devices described above, which are not described herein again; the communication devices can also include other devices in the communication system 100, such as network controllers, mobile management entities, and other network entities, and the embodiments of the present application do not limit this.

[0055] For ease of understanding, some related technical knowledge related to the embodiments of the present application is introduced first. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional schemes, and all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0056] With the development of communication technology, the communication system (for example, 5G) will integrate the market potential of satellite and terrestrial network infrastructure. For example, the 5G standard makes NTN including a satellite segment a recognized part of the 3rd generation partnership project (3GPP) 5G connectivity infrastructure.

[0057] The NTN refers to a network or network segment using radio frequency (RF) resources on a satellite or unmanned aerial system (UAS) platform. Taking a satellite as an example, communication satellites are divided into low earth orbit (LEO) satellites, medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, high elliptical orbit (HEO) satellites, etc. according to different orbital altitudes. Among them, LEO is a kind of orbit with the earth as the center, its height is 2000 kilometers or less, or at least 11.25 cycles per day, and the eccentricity is less than 0.25. Most man-made objects in outer space are located in LEO. LEO satellites run around the earth at high speed (mobility), but on a predictable or determined orbit.

[0058] Satellites with different orbital altitudes have different orbital periods. Exemplarily, the typical height of LEO is 250-1500 kilometers, and the orbital period is 90-120 minutes. The typical height of MEO is 5000-25000 kilometers, and the orbital period is 3-15 hours. The height of GEO is about 35786 kilometers, and the orbital period is 24 hours.

[0059] From the foregoing example of a satellite, Figure 2 andFigure 3 It is known that typical scenarios for terminal devices accessing NTN systems involve NTN transparent payload or NTN regenerative payload. Among them, Figure 2 The bent-pipe transponder architecture shown corresponds to NTN transparent payload, Figure 3 The regenerative transponder architecture shown corresponds to NTN regenerative payload.

[0060] In NTN systems, terminal devices located on the ground communicate wirelessly through an aerial platform. Unlike terrestrial networks (TNs), the transmission delay in NTN is usually larger. Exemplarily, since satellites are usually located hundreds of kilometers above the earth's surface, the propagation delay in NTN is much longer. Specifically, the propagation delay in NTN ranges from a few milliseconds to hundreds of milliseconds, depending on the height of the spaceborne or airborne platform and the type of payload in the NTN.

[0061] Due to the large propagation delay, problems need to be solved when deploying terrestrial network technologies in NTN systems. Exemplarily, in the Rel-17 and Rel-18 IoT NTN, the NB-IoT technology is enhanced to support NTN.

[0062] With the development of IoT technology, reduced capability (RedCap) terminal devices can be well served in many similar IoT use cases in addition to NB-IoT. That is, RedCap devices also need to be applied in NTN systems.

[0063] RedCap is a new terminal capability information introduced in Rel-17. RedCap related terminal devices can have reduced complexity and new power saving functions, so they are more suitable for large-scale commercial popularization and application in 5G commercial networks. Taking NR as an example, RedCap can reduce the capability of devices by reducing bandwidth, the number of transmit and receive antennas, reducing rate, adjusting modulation mode, introducing half-duplex mode, etc., thereby reducing the complexity of terminal devices, achieving the purpose of reducing terminal cost, power consumption, prolonging service life, etc. Therefore, the requirements of RedCap are different from those of LTE for machines (LTE-M) and NB-IoT.

[0064] From the above, RedCap supports a half duplex (HD) mode of operation. In a half duplex frequency division multiplexed (FDD) mode of operation, a communication device can transmit and receive at different times and different frequencies. Compared to a full duplex FDD (FD FDD) mode, a device that supports a half duplex FDD (HDFDD) mode can not need a duplexer, thereby reducing complexity and cost. Illustratively, a half duplex FDD device can relax requirements on devices within a radio frequency front end, using a lower cost transmit-receive antenna switch and low pass filter in place of a duplexer.

[0065] When requiring transmission and reception at different times and different frequencies in a half duplex mode, when a Redcap device adopts an HDFDD mode, there can be a need for a terminal device to simultaneously receive downlink (DL) and transmit uplink (UL). That is, there can be a situation where uplink and downlink collide at the terminal side.

[0066] Further, in an NTN system, there is a large propagation delay between uplink and downlink. Due to the particularity of the NTN system, the technology of requiring uplink and downlink to be transmitted at different points in HDFDD mode can bring a more complex collision scenario.

[0067] As an example, in an NR NTN, a terminal device needs to receive a system information block (SIB) to communicate. For example, a terminal device needs to read SIB19 from time to time to keep the ephemeris table up to date. Specifically, a terminal device can determine when to read SIB19 according to the validity of the ephemeris table and the time of the last acquisition of SIB19. SIB19 is usually carried in a system information (SI) message. This message is transmitted on a downlink-shared channel (DL-SCH). Only SIBs with the same periodicity can be mapped to the same SI message. Each SI message is sent in a periodically occurring time domain window, where all SI messages can have the same length of the SI window. 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 transmitted in a certain SI window. The system can send the corresponding SI message multiple times in a certain SI window. Therefore, SIB19 can be periodically transmitted during the SI window associated with SIB19. The duration and start time of the SI window are known to the terminal device.

[0068] From the above, SIB19 is periodically broadcasted and there are many SIB19 transmissions within the validity period of the almanac, so full-duplex terminal devices have plenty of opportunities to read SIB19. However, for half-duplex terminal devices, potential conflicts between UL transmissions and SIB19 transmissions can deprive the opportunity to read SIB19. In addition, it is not desirable for the network device (e.g., gNB) to schedule the terminal device to avoid UL transmissions during the transmission of all SIB19, because this will result in the loss of UL throughput of the terminal device, and can also downgrade or exclude some UL services for half-duplex terminal devices. For example, if UL voice packets are transmitted in a manner of repeating 16 times every 20 milliseconds, it is almost impossible to avoid the conflict between the physical uplink shared channel (PUSCH) carrying voice and SIB19 transmission through gNB scheduling.

[0069] For ease of understanding, the following is combined with Figure 4 , the conflict between the uplink transmission of the terminal device (e.g., UE) and the downlink transmission of SIB19 is exemplarily explained. Referring to Figure 4 , the UL transmission of the terminal device is PUSCH transmission carrying voice, which is dynamic. Figure 4 The downlink transmission in is PDCCH or PDSCH transmission for SIB19, which is periodically transmitted based on SI period.

[0070] As shown in Figure 4 , both PDCCH / PDSCH conflict with PUSCH carrying voice. According to the relevant rules, when there is a conflict, the terminal device can cancel the transmission of voice and / or give up the reception of SIB19. Based on this rule, the conflict between SIB19 and PUSCH can result in unacceptable voice quality and / or loss of the opportunity to read SIB19.

[0071] As an example, in the NTN system, the movement of the satellite can cause the change of the propagation delay, and it is also difficult for the network device to schedule the transmission of uplink or downlink. This is because the network device can not know whether a conflict will occur at the terminal device side, or which channels / signals will conflict at the terminal device side.

[0072] 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 TA of an end device 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.

[0073] In the example above, at time T1, within the service area of ​​satellite 1, the terminal device can calculate the TA value T in the TA report. TA And report it. Among them, T TA The calculation is based on the following formula:

[0074]

[0075] Among them, T c N is the basic time unit; TA It is the TA value indicated in the TA command sent by the network device via MAC CE. For transmission on the physical random access channel (PRACH), N TA It can be defined as 0; N TA,offset 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 shared by all terminal devices in an NTN cell. This TA value may include any timing offsets that the network determines are necessary; N TA,offset 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.

[0076] 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.

[0077] To facilitate understanding, we will use LEO as an example below, combined with... Figure 5 An example is provided to illustrate a scenario where a 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 granularity (TA) is the difference between the minimum and maximum TA within the serving cell. 300 μs corresponds to approximately 4–5 orthogonal frequency division multiplexing (OFDM) symbols at a 15 kHz subcarrier spacing (SCS). However, a 1 ms reporting granularity is equivalent to 14 OFDM symbols at a 15 kHz SCS.

[0078] Depend on Figure 5It can be seen that for a LEO of 600km, when the beam size is 50km and the target elevation angle is 30 degrees, the difference between the minimum TA and the maximum TA can be less than the TA reporting granularity (e.g. 1ms). When the reporting granularity is 1ms, regardless of the satellite parameters, the TA mismatch can occur within 1ms. Therefore, at least 1ms of resources can need to be reserved between DL and UL transmissions to avoid the case of incorrectly scheduling terminal devices. In particular, considering that the transmission duration in NTN is usually longer than in TN due to the repetition of uplink transmissions. Therefore, in LEO, the main reason for TA mismatch can be that the TA reporting granularity is not fine enough, rather than the outdated TAR.

[0079] In summary, when RedCap and other technologies supporting half duplex are applied in NTN systems, it is necessary to study the possibility of supporting half duplex operation through NTN designation. Therefore, how to deploy terminal devices supporting half duplex in NTN systems, how to reduce or avoid the conflicts that can occur in half duplex mode of operation, and how to transmit when conflicts occur are all technical problems that need to be solved.

[0080] It should be noted that the above-mentioned problem of uplink and downlink transmission conflict in NTN systems due to the support of half duplex mode by RedCap and the large TA reporting granularity is only an example, and the embodiments of the present application can be applied to any type of terminal device communication scenario with large TA reporting granularity or supporting half duplex communication.

[0081] To solve the above problem, the embodiments of the present application provide a method for wireless communication. Through this method, the first device can determine whether to send the first TAR according to the service time and / or the service type. As can be seen, the first TAR trigger event increases the service-related information of the first device, making the reporting granularity of the first TAR more fine, which helps to reduce transmission conflicts. In order to facilitate understanding, the following will be described in detail. Figure 6 Figure 6 It is introduced from the perspective of interaction between the first device and the second device.

[0082] In some embodiments, the first device can be a terminal device for uplink transmission to the network device, or a terminal device for receiving downlink transmission from the network device, which is not limited here. Illustratively, the first device can be a UE, or a relay device.

[0083] 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 a longer communication latency.

[0084] ​As an example, the first device is located in a coverage area of a satellite. For example, the first device is an NTN IoT terminal.

[0085] In some embodiments, the first device can be a terminal device performing sidelink transmission to other terminal devices.

[0086] In some embodiments, the first device is a terminal device or a relay device supporting half-duplex communication. For example, the first device is a RedCap device as described above. For example, the first device is any low-energy device supporting half-duplex mode.

[0087] As an example, the first device can support both half-duplex mode and other modes. The other modes are, for example, full-duplex mode.

[0088] As an example, the first device can be any one of a plurality of terminal devices supporting half-duplex communication in a cell of an NTN, without limitation. For example, the first device corresponds to a serving cell of an NTN.

[0089] 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 can include a satellite in an NTN system, and the first device is a terminal device in a cell served by the satellite. For example, when a base station is deployed on a satellite, the first device can directly communicate with the base station on the satellite. For example, when the satellite is used as a relay, the first device can communicate with a network device located on the ground through the satellite.

[0090] As an example, when the first device includes a satellite, the second device can be located in a service area of the satellite at the current time to transmit or receive the first transmission through the satellite.

[0091] In some embodiments, the second device can be a terminal device or a relay device in a sidelink communication system that communicates with the first device.

[0092] Referring to Figure 6 At step S610, the first device transmits the first TAR to the second device. Correspondingly, the second device receives the first TAR transmitted by the first device. The first device can transmit the first TAR to the second device according to the first information. The first information is used to trigger the first device to transmit the first TAR, that is, the first TAR is triggered according to the first information.

[0093] In some embodiments, the first information can also be referred to as the trigger information of the TAR. The first device transmits the first TAR according to the first information, which can be replaced by the first device determining whether to trigger the first TAR according to the first information.

[0094] In some embodiments, the first information can comprise an indication of triggering a TAR by a higher layer and a TA offset threshold configured by the higher layer. As known from the foregoing, the first device is triggered to send a TAR if the first device has not previously reported a TA value to the current serving cell, or if the change between the current estimated value of the TA value and the last reported TA value is equal to or greater than the TA offset threshold (if configured). In order to achieve finer TA reporting granularity, the triggering event of the first TAR can be increased according to actual transmission requirements.

[0095] In some embodiments, the first information can further comprise information related to the service of the first device. In some embodiments, the first TAR can be further triggered according to a plurality of events related to the service. The plurality of events related to the service can be, for example, a service level, a service type, a service time limit, a service serving time.

[0096] As an implementation manner, the first information can comprise a service serving event of the first device and / or a service type of the first device. In consideration of the indication or configuration of the higher layer, the first information can comprise one or more of the following information: an indication of triggering a TAR by the higher layer, a TA offset threshold configured by the higher layer, a service serving time of the first device and a service type of the first device.

[0097] Exemplarily, the first TAR can be triggered according to one or more of the following information: an indication of triggering a TAR by the higher layer, a TA offset threshold configured by the higher layer, a service serving time of the first device and a service type of the first device. That is, the first device can send the first TAR in response to an event related to any of the above information. The higher layer can also be referred to as the upper layer.

[0098] As an example, the TA offset threshold for triggering a TAR report can also be referred to as a triggering offset threshold.

[0099] In some embodiments, the first information comprises a service serving time of the first device. As an example, the service serving time of the first device can represent a time during which the first device can currently be served, or a remaining service time of the current service. Optionally, the service serving time of the first device can be determined according to the capability and position of the first device, or can be determined according to the time during which the current cell provides service.

[0100] As a possible implementation manner, when the cell corresponding to the first device is a cell in the NTN (the first device corresponds to a serving cell of the NTN), the service time of the first device can be determined according to the location of the first device and / or the service time of the satellite of the NTN. For example, when the location of the first device changes, the first device can leave the current cell, resulting in that the service time is too low. For another example, when the current satellite of the NTN cell is about to leave the cell where the first device is currently located, the service time can be lower than the first threshold.

[0101] Illustratively, when the first device receives an indication of triggering the TAR sent by the higher layer, and the service time of the first device is greater than the first threshold, the first device sends the first TAR. That is, when the service time is long, the first TAR is sent in time to reduce possible transmission conflicts by reporting the granularity of the more refined TAR.

[0102] Illustratively, when the service time of the first device is equal to or less than the first threshold, the first device does not send the first TAR. When the remaining time of the service decreases, the first device can not send the first TAR, thereby reducing unnecessary power consumption. Illustratively, the service time of the first device is T-UE, and the first threshold is set as T target After that, if T-UE is greater than T target , the sending of the first TAR is triggered; if T-UE is less than T target , the first device does not trigger the sending of the first TAR, so as to avoid unnecessary power consumption of the first device.

[0103] As a possible implementation manner, the first threshold can be configured by the higher layer, or can be determined by the first device itself.

[0104] As a possible implementation manner, in the NTN system, the first threshold can be determined according to the service time of the satellite. The satellite currently provides service for the serving cell where the first device is located. The service time of the satellite can be the remaining service time of the current satellite in the serving cell. Illustratively, the first threshold T target may be 10% x T-service, and T-service is the service time of the NTN satellite. Illustratively, when the service time of the first device is within T-service, the sending of the first TAR is triggered; when the service time of the first device is outside T-service, the sending of the first TAR is not triggered.

[0105] In some embodiments, the first information includes the type of service of the first device. The type of service of the first device can refer to the type of resource required by the service of the first device, can refer to the application scenario of the service, or can refer to the service level, which is not limited here.

[0106] As an example, the service type of the first device can be used to set a timer related to the triggering of the TAR. By increasing the timer triggering the TAR based on the service type, the reporting granularity of the TAR can be related to the service type. That is, the first device can trigger the sending of the TAR according to the timer corresponding to the service type.

[0107] Exemplarily, the service type of the first device is used for the first device to set a first timer related to the TA offset threshold. That is, the first device can set the first timer related to the TA offset threshold according to the service type. For different service types, the first timer can be set to different time lengths. As can be seen, the setting of the offsetThresholdTA is not only related to the location information, but also related to the service type. For different services, the offsetThresholdTA has different values. For example, the higher the service level of the first device, the smaller the offsetThresholdTA value can be set, so as to achieve a smaller triggering offset threshold.

[0108] Optionally, the first device can send the first TAR based on a trigger TAR indication from the upper layer.

[0109] Optionally, when the offsetThresholdTA is configured by the upper layer, if the change of the TA value is equal to or greater than the offsetThresholdTA, the first device sends the first TAR.

[0110] Optionally, the first device can trigger the sending of the first TAR based on the service serving time and the indication of the higher layer to avoid or reduce the conflict. After introducing the triggering of the service serving time, the first device can detect its service time after receiving the trigger TAR indication from the upper layer, so as to determine whether to send the first TAR according to the relationship between the service time and the threshold.

[0111] Optionally, the first device can determine whether to send the first TAR based on the location information and the service type.

[0112] In some embodiments, in order to achieve more accurate TA reporting, the related TA reporting mechanism can be directly enhanced. As an implementation manner, the first device can use a reporting MAC CE with the same size as the TAR MAC CE (2 octets) to provide finer reporting granularity. In the related art, the TA value sent by the first TAR through the MAC CE of 2 octets at the current time is T TA , which can be referred to as the first TA value in the first TAR. As can be seen from the calculation formula of T TA , the first TA value in the first TAR can be calculated according to the TA value (NTA ), a first offset value (N TA,offset ), a common TA and a dedicated TA value of the first device determine.

[0113] It should be understood that when the TAR MAC CE corresponds to 2 octets, the 2 octets can be the first byte segment corresponding to the first TAR. When the TAR MAC CE corresponds to a byte segment of other length, the byte segment of other length is the first byte segment corresponding to the first TAR.

[0114] As an embodiment, in order to provide finer reporting granularity, the first device can use the MAC CE to report only the dedicated TA value that the first device is estimating, that is, T TA a specific component of the first device in T That is, when the first TAR is triggered, the first device can send only the dedicated TA value of the first device through the first byte segment.

[0115] As an embodiment, in order to provide finer reporting granularity, the first device can use the MAC CE to report only the current T TA a change value relative to the last reported TA value, that is, ΔT TA . That is, 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, and the second TA value is the TA value in the second TAR that the first device sent last time. It should be understood that the last time sending can be the previous sending adjacent to the first TAR sending occasion, or can be the initial sending.

[0116] In the above embodiment, the dedicated TA value or ΔT TA in a certain time can be used as a substitute for reporting the entire T TA value to the gNB. This is because in a certain time, the calculated parameters are still valid and known at the UE and gNB sides. Therefore, the 2 octets of the enhanced reporting MAC CE can be fully used to send the variable in the entire TA value (the first TA value).

[0117] As an 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 send the dedicated TA value of the first device, or the difference (ΔT TA ) between the first TA value and the second TA value in the first TAR. For example, the first device can report the dedicated TA value of the first device or ΔT TA on a four-octet basis. As can be seen, the 2 octets can facilitate the first device to report the related parameters of the TA more frequently.

[0118] In some embodiments, the second device can configure the first resource according to the first TAR. When the TA value in the first TAR is more accurate, the probability of transmission collision on the first resource is reduced. That is, in some scenarios, the first resource can be determined according to the first TAR reported by the first device. The first resource in the first TAR will be described in detail hereinafter. Figure 7

[0119] It can be known from the above that the embodiments of the present application add multiple trigger occasions to the first TAR, and propose an enhanced reporting manner to achieve finer reporting granularity. As known from the above, in the NTN system, the distance between the satellite and the ground communication device is far, and the transmission delay is large. For half-duplex communication in the NTN system, even if the reporting granularity of the first TAR is finer, the first device may still have uplink and downlink transmission conflicts. Figure 6

[0120] In order to solve the problem of how to transmit when there is a conflict, the embodiments of the present application propose another method for wireless communication. Through this method, the first transmission of the first device on the first resource can be determined according to the first priority order. The first resource is one of a plurality of resources related to half-duplex communication, and the plurality of priority orders including the first priority order can be used for the plurality of resources. As can be seen, the plurality of resources for half-duplex communication can select appropriate transmission based on different priority orders, so that the type of transmission on the half-duplex communication resource can be flexibly set based on the communication demand, which helps to reduce or avoid the transmission conflict of the first device and improves the transmission efficiency.

[0121] In order to facilitate understanding, the method for wireless communication proposed by the embodiments of the present application will be described in detail below. Figure 7 Figure 7 The method shown in the figure is executed by the first device, Figure 7 The first transmission in the first TAR is the transmission between the first device and the second device. In order to be brief, Figure 6 The terms already explained in the above will not be repeated.

[0122] Referring to Figure 7 In step S710, the first device sends or receives the first transmission on the first resource according to the first priority order. Correspondingly, the second device can receive or send the first transmission on the first resource.

[0123] ​​​The first transmission can be any channel, signal or signaling transmission, which is not limited herein. For example, the first transmission can be a transmission of an uplink channel such as a PUSCH transmission, a PUCCH transmission, or a transmission of a downlink channel such as a PDCCH transmission, a PDSCH transmission, or a transmission of a sidelink channel such as a PSSCH transmission, a PSCCH transmission. For another example, the first transmission can be a transmission of an uplink reference signal, a sidelink reference signal or a downlink reference signal. For yet another example, the first transmission can be a transmission of any signaling.

[0124] As an example, the first transmission can be any transmission transmitted through the air interface resource.

[0125] In some embodiments, the first transmission can be any of a plurality of transmissions. That is, the first transmission is one of the plurality of transmissions. The plurality of transmissions can include any of the above-described transmissions of channels, signals or signaling, which is not limited herein.

[0126] In some embodiments, the plurality of transmissions can be classified according to the transmission direction or the transmission importance, so as to determine the first transmission.

[0127] As a possible implementation, the plurality of transmissions can include a first type of transmission and a second type of transmission other than the first type of transmission, wherein the priority of the first type of transmission is higher than the priority of the second type of transmission. That is, when the first type of transmission and the second type of transmission both need to be transmitted on the first resource, the first type of transmission is transmitted first.

[0128] Optionally, the first type of transmission can include one or more of the following: a downlink transmission of a SIB; a TAR and / or a scheduling request (SR) triggered by the TAR; a transmission of enabling / disabling hybrid automatic repeat request (HARQ) feedback; and an uplink transmission based on demodulation reference signal (DMRS) bundling. The DL / UL transmission of the first device or the second device includes the four transmissions, and the priority of the four transmissions is higher than that of other DL / UL data transmissions.

[0129] As an example, the downlink transmission of the SIB can include or be a downlink transmission of a SIB19. The downlink transmission of the SIB can also be referred to as a downlink reception of the SIB. The downlink transmission of the SIB19 can also be referred to as a downlink reception of the SIB19. When the first type of transmission includes the downlink transmission of the SIB19, it is helpful for the terminal device to read the latest information of the ephemeris table in time.

[0130] As an example, the TAR and / or the SR triggered by the TAR belongs to the first type of uplink transmission related to the TAR. In the NR NTN, the uplink transmission related to the TAR is important information related to the uplink timing. In order for the network device of the NTN to set a proper uplink timing offset (e.g., K cell,offset , K UE,offset ), the information of the TAR needs to be received by the network device of the NTN in time, and therefore, the terminal device needs to perform the uplink transmission of the TAR or the SR triggered by the TAR in time.

[0131] As an example, in the NTN system, some HARQ processes can enable / disable HARQ feedback. The transmission of these HARQ feedback enabled / disabled HARQ feedback has different requirements from other transmissions, and therefore, the transmission priority between DL / UL can be set according to whether the HARQ feedback is enabled / disabled. For example, the transmission with disabled HARQ feedback can have a higher priority. If the priority of such transmission is low, canceling these transmissions when a conflict occurs can cause the entire data to be unable to be received.

[0132] As an example, the DMRS bundling can also represent dedicated demodulation reference signals (DM-RS) bundling. In the uplink transmission based on DMRS bundling, the continuity of the phase needs to be ensured. Therefore, after the first type of transmission includes the uplink transmission based on DMRS bundling, the continuity of the phase can be limitedly ensured by promoting the priority.

[0133] 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 the 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 the first type of transmission, the first transmission can be the transmission with a higher priority in the second type of transmission.

[0134] 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 is (pre)configured to be performed on the first resource. When the first resource corresponds to multiple transmissions, it can refer to that the multiple transmissions can be performed on the first resource. Since the half-duplex mode needs to be respectively transmitted and received at different times and different frequencies, the multiple transmissions will occur transmission conflicts on the first resource.

[0135] 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 that the plurality of resources are used for the communication device to perform half-duplex communication in the network. In some embodiments, the plurality of resources can be dedicated resources for the half-duplex mode. In some embodiments, the plurality of resources can be resources that support both the half-duplex mode and the full-duplex mode. In some embodiments, the plurality of resources can be indefinite wireless resources.

[0136] Exemplarily, the first resource can be used for the first device and the second device to perform directional data transmission in the NTN.

[0137] In some embodiments, the half-duplex communication includes uplink transmission, downlink reception (downlink transmission) and sidelink transmission based on the half-duplex mode. That is, the first resource can be an uplink transmission resource, a downlink transmission resource, or a sidelink transmission resource.

[0138] In some embodiments, the plurality of resources can be determined according to the configuration of the network, or according to the transmission demand of the terminal device, or according to the TAR reported by the terminal device. Hereinafter, the first resource determined by the TAR will be described in combination with various triggering occasions of the TAR.

[0139] Exemplarily, the plurality of resources can be periodic transmission resources. For example, the plurality of resources can be a plurality of transmission windows of SIB. For example, the plurality of resources can include a plurality of transmission windows of SIB19, and the first resource can be any one or more of the plurality of transmission windows.

[0140] Exemplarily, the plurality of resources can be reserved resources set by the network device or the terminal device for potential DL / UL conflict. For example, in the TA misaligned NR NTN, the setting of the guard time (GT) can support potential resource conflict. If both the DL resource and the UL resource exist within the GT, the network side and the terminal side can regard these resources as potential DL / UL conflict resources.

[0141] Exemplarily, the plurality of resources can be a plurality of time-frequency resources of any size, which is not limited here.

[0142] Exemplarily, the plurality of resources can include a plurality of continuous time-frequency resources, or a plurality of discontinuous time-frequency resources. The first resource can be a continuous time-frequency resource, or a discontinuous time-frequency resource.

[0143] Exemplarily, the plurality of resources can be a plurality of different types of resources, and the first resource is one type of resource in the plurality of types of resources. The plurality of different types of resources can include periodically configured resources, preconfigured specific resources, resources for specific transmission, etc.

[0144] Exemplarily, the first resource can be any one of the resources of the certain type. For example, when the plurality of resources include a plurality of periodically configured transmission windows and dynamically configured resources, the first resource can be a partial transmission window of the plurality of periodically configured transmission windows.

[0145] In some embodiments, when the first resource corresponds to a plurality of transmissions, the first device needs to select one transmission to perform from the plurality of transmissions. The transmission selected by the first device from the plurality of transmissions corresponding to the first resource is the first transmission.

[0146] The first device sending or receiving the first transmission on the first resource according to the first priority order can be replaced by the first device determining the first transmission corresponding to the first resource according to the first priority order. It can be seen that the first transmission can be the transmission with the highest priority level from the plurality of transmissions corresponding to the first resource. That is, the first device determines the first transmission from the plurality of transmissions in a descending order of priority.

[0147] The first priority order is one of a plurality of priority orders for the plurality of resources. The plurality of priority orders can be respectively set based on different priority principles. For example, the plurality of priority orders can further include a second priority order, and the setting principle of the second priority order is different from that of the first priority order.

[0148] When the plurality of priority orders are used for the plurality of resources, the first device or the second device can select the corresponding transmission on different resources based on different priority orders to avoid the throughput of the low-priority transmission being low when there is only one priority order. That is, for any one transmission, the priority on different resources is different. For example, for the downlink transmission of SIB19, the priority is high in some transmission windows and low in other transmission windows. In the window with high priority, the first device can perform downlink reception of SIB19 to ensure timely updating of ephemeris information; in the window with low priority, the first device can perform uplink transmission to improve the throughput of uplink transmission, thereby improving transmission efficiency.

[0149] As an example, the plurality of priority orders can correspond to the plurality of resources one by one. That is, the plurality of resources correspond to different priority orders respectively, so that the first device and the second device select the transmission type according to the resource.

[0150] As an example, any one of the plurality of priority orders can correspond to at least two of the plurality of resources. That is, at least two of the plurality of resources share one priority order.

[0151] As an example, a plurality of resources in a time period can collectively have a priority order to guarantee a certain type of transmission or a certain type of service transmission demand in the time period.

[0152] As an example, when the plurality of resources includes a plurality of transmission windows of SIB19, the plurality of transmission windows can include two types of transmission windows corresponding to different priority orders respectively. For example, the plurality of transmission windows can include a first transmission window and a second transmission window. Wherein, the priority order corresponding to the first transmission window includes the highest priority of the downlink transmission of SIB19, and the priority order corresponding to the second transmission window includes the lowest priority of the downlink transmission of SIB19. The first transmission window can also be referred to as a reserved SIB19 window.

[0153] As an 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.

[0154] As an example, the position of the downlink transmission of SIB19 in the priority order corresponding to the first transmission window is higher than the position of the downlink transmission of SIB19 in the priority order corresponding to the second transmission window.

[0155] As an example, in an NR NTN, for a RedCap terminal device supporting HD FDD(e), the transmission in the first resource can be determined based on one or more priority rules of NTN-specific transmissions.

[0156] In some embodiments, the first priority order can include a priority of a first type of transmission being higher than a priority of a second type of transmission, and can further include a priority order of a plurality of first type of transmissions and / or a priority order of a plurality of second type of transmissions.

[0157] As an example, for the four types of transmissions in the first type of transmission described above, the first priority order can include: the downlink transmission of SIB19 having the highest priority, the transmission enabling / disabling HARQ feedback having the second highest priority, the TAR and / or the SR triggered by the TAR having the third highest priority, and the uplink transmission based on DMRS bundling having the lowest priority.

[0158] As an example, for the four types of transmissions in the first type of transmission described above, the first priority order can include: the downlink transmission of SIB19 having a higher priority than the transmission enabling / disabling HARQ feedback, the TAR and / or the SR triggered by the TAR, and the uplink transmission based on DMRS bundling.

[0159] As an example, for the first type of transmissions described above, the first priority order can include: the priority of the transmission with / without HARQ feedback is higher than the priority of the TAR and / or the TAR triggered SR and the priority of the uplink transmission based on DMRS bundling.

[0160] As an example, for the first type of transmissions described above, the first priority order can include: the priority of the TAR and / or the TAR triggered SR is higher than the priority of the uplink transmission based on DMRS bundling.

[0161] As an example, for the four transmissions in the first type of transmissions described above, the first priority order can include: the priority of the downlink transmission of SIB19 is the lowest, the transmission with / without HARQ feedback is the second, the TAR and / or the TAR triggered SR is the third, and the priority of the uplink transmission based on DMRS bundling is the highest.

[0162] As an example, for the four transmissions in the first type of transmissions described above, the first priority order can include: the priority of the transmission with / without HARQ feedback is the highest, the priority of the downlink transmission of SIB19 is the second, the TAR and / or the TAR triggered SR is the third, and the priority of the uplink transmission based on DMRS bundling is the lowest.

[0163] It should be understood that for multiple transmissions in the first type of transmissions, the first priority order can have other multiple orders. The multiple orders can correspond to multiple priority orders for determining the first transmission on multiple different resources.

[0164] It can be known that when the transmission conflict occurs on 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 influence of the conflict on the transmission efficiency. Figure 7

[0165] As known from the foregoing, the first resource can be a periodically configured resource or a reserved resource. When the first resource is a reserved resource configured based on the protection time method, the first resource can be related to the first TAR. Compared with the related art, the first TAR can be triggered based on more events to achieve finer TA reporting granularity. By introducing finer TA reporting granularity and smaller triggering offset threshold, the ratio of unavailable resources can be reduced.

[0166] ​In some embodiments, when the reporting granularity of TA is finer, the network device (the second device) can receive the actual TA of the first device more timely, so as to more accurately configure the resources of uplink and downlink transmission. The resource configuration can include configuring the first device with multiple resources including the first resource. As can be seen, the finer reporting granularity of TA can effectively reduce the uplink and downlink transmission conflict.

[0167] In some embodiments, the smaller trigger offset threshold means that the first device sends the TAR when the difference between the actual TA and the initial TA is smaller, which can also facilitate the second device to update the TA value in time.

[0168] In some embodiments, the network device can configure multiple downlink transmission resources for the first device to communicate according to the first TAR. The multiple downlink transmissions can include PDCCH or PDSCH, which are not limited herein.

[0169] In some embodiments, the network device can configure multiple uplink transmission resources for the first device according to the first TAR. The multiple uplink transmissions can include the SR, the transmission enabling / disabling HARQ feedback, and the uplink transmission based on DMRS bundling described above, and can also include other data transmissions. The first resource is a resource used for any of the multiple uplink transmissions, which is not limited herein.

[0170] As an example, when the first resource is a reserved resource configured based on GT, the TA value of the first TAR is used to determine the reserved resource.

[0171] In the embodiments of the present application, the trigger timing and the enhanced reporting manner added by the first TAR can be used alone, or can be used in combination with the method of 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.

[0172] As can be seen from the foregoing, the first resource can be related to the first TAR sent by the first device, or can be a downlink resource configured by the network device itself, which is not limited herein. In order to facilitate understanding, the following will be introduced in combination with Figures 8 to 10 introduce multiple types of first resources.

[0173] In some embodiments, the first resource can include a reserved resource determined based on a guard time (GT). As can be seen from the foregoing, the resource corresponding to the guard time can be referred to as a resource of potential DL / UL conflict, i.e., a potential conflict resource. As an example, the value of the GT can be set to be large enough to eliminate the synchronization error between the network device and the terminal device due to the TA misalignment.

[0174] In some embodiments, the terminal device and the network device know that a conflict of resources will occur within the time period corresponding to the GT, and thus a guard time can be configured between the conflicting transmissions to avoid the conflict. For example, the GT is configured between a DL transmission and an UL transmission.

[0175] In some embodiments, the guard time can be determined according to the first TA value in the first TAR. The first TA value is also the UL TA sent by the terminal device. The network device and the terminal device can determine the GT-based DL / UL conflicting resources under the assumption of the same UL TA. For example, the network device and the terminal device can assume the TA value in the common TA or the latest TA report as the UL TA, and then determine the potential DL / UL conflicting resources based on the GT. For example, under the assumption of the given UL TA, there will be DL / UL resources within the GT. That is, the first resource corresponding to the GT can be used for DL / UL transmission.

[0176] As an example, the determination of whether the DL transmission and the UL transmission overlap in the time domain is based on the actual TA known by both the network device and the first device, which is determined by the latest reported TAR of the first device. That is, the guard time is determined based on the current time first TAR, rather than the initial TA of the first device, which can avoid the TA mismatch problem. For example, the network device and the first device can first determine the actual TA based on the latest reported actual TA and the initial TA of the first device. The interval (GAP) between the actual TA and the initial TA, or the interval (difference) Δ TA Within the guard time, the UL and DL transmission resources will not conflict.

[0177] In some embodiments, the start time of the guard time is The end time of the guard time is wherein, represents the current TA value of the first device, and Δ TA represents the difference between the current TA value and the last TA value. It should be understood that the current TA value of the first device can be the actual parameter closest to the current situation.

[0178] Optionally, the current TA value of the first device can be the first TA value in the first TAR, or a dedicated TA value of the first device used to determine the first TA value. For example, Δ TA may be the ΔT TA described above, or the difference between the two adjacent dedicated TA values.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] 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 after the protection time.

[0184] 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.

[0185] 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.

[0186] In some embodiments, the distance between the first device and the satellite can be represented by an elevation angle. Assuming that a line between the terminal device and the satellite is a first line, and a line between the terminal device and a ground projection of the satellite is a second line, the elevation angle can be an included angle between the first line and the second line. Assuming that the altitude of the satellite is h, the horizontal distance from the first device to the ground projection of the satellite is d, and the elevation angle of the first device is θ, the distance between the first device and the satellite can be represented by the elevation angle as follows:

[0187]

[0188] As an example, the elevation angle can be in a range of 0° to 90°. The guard time can be determined according to the elevation angle between the first device and the satellite in the NTN. The larger the elevation angle, the closer the distance between the first device and the satellite, and the guard time can be relatively shorter. Conversely, the smaller the elevation angle, the farther the distance between the first device and the satellite, and the guard time can be relatively longer.

[0189] As an example, the guard time can be determined according to the change value of the elevation angle between the first device and the satellite in the NTN within a first time period. The first time period can be configured by the network device or higher layer, which is not limited herein. That is, the GT can be valued according to the size of the change of the elevation angle of the first device to the satellite.

[0190] As an example, the change value of the elevation angle within the first time period belongs to a plurality of value ranges. The plurality of value ranges include a first value range and a second value range, the first value range corresponds to a first guard time, and the second value range corresponds to a second guard time.

[0191] In the above example, when the upper limit value of the first value range is less than the upper limit value of the second value range, the length of the first guard time is less than the length of the second guard time. Or, when the lower limit value of the first value range is less than the lower limit value of the second value range, the length of the first guard time is less than the length of the second guard time.

[0192] In the above example, when the upper limit value of the first value range is greater than the upper limit value of the second value range, the length of the first guard time is greater than the length of the second guard time. Or, when the lower limit value of the first value range is greater than the lower limit value of the second value range, the length of the first guard time is greater than the length of the second guard time.

[0193] In the above example, when the lower limit value of the first value range is greater than or equal to the upper limit value of the second value range, the length of the first guard time is greater than the length of the second guard time. That is, the greater the lower limit value of the value range, the greater the length of the guard time, as shown in Table 1. As an example, Table 1 shows an implementation of the value of the GT determined based on the size of the change of the value of θ (Δθ).

[0194] Table 1

[0195] Δθ (°) GT ≤10 1 slot 10 < Δθ ≤ 20 2 slots 20 < Δθ ≤ 30 3 slots 30 < Δθ ≤ 40 4 slots 40 < Δθ ≤ 50 5 slots 50 < Δθ ≤ 60 6 slots 60 < Δθ ≤ 70 7 slots …… ……

[0196] As an example, GT can be set as a fixed value. For example, this fixed value is set as a maximum value of the value of θ (Δθ maX ) to ensure that UL and DL transmissions do not collide. For example, Δθ max may be 90°.

[0197] As an example, when actual TA misalignment occurs and the actual colliding resources are greater than GT, abnormal handling is required. For example, when GT is no longer valid, the first device can perform TA reporting to the network device to reconfigure the value of GT.

[0198] As can be seen from the foregoing, the first resource can be part of the plurality of transmission windows of SIB19, i.e., the first transmission window. In order to ensure the time for the first device to read SIB19, a subset of SIB19 transmission windows (reserved SIB19 transmission windows) can be configured as shown in Figure 9 . These reserved SIB19 transmission windows are the first transmission windows. As described above, during the first transmission window, the first device can prioritize the reception of PDCCH and PDSCH related to SIB19. That is, the downlink transmission of SIB19 has a higher priority.

[0199] As an example, the first transmission window of SIB19 with the highest priority can be configured within a specific time.

[0200] As an example, the plurality of 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, the downlink transmission of SIB19 has a higher priority than UL transmission. That is, within the reserved window, the first device needs to wait for the transmission of SIB19, and prioritizes the reception of SIB19, and cannot transmit UL data, so as to effectively avoid collision. Within the second transmission window, the first device can directly transmit UL data.

[0201] As an example, the plurality of SIB19 reserved resources included in the first resource can be transmitted through a broadcast message.

[0202] As an example, the network device can configure 2 first and transmission windows within every 1024 subframes. In response, the first device supporting half-duplex communication will attempt to read SIB19 during one of the two transmission windows.

[0203] 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.

[0204] 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.

[0205] The following is combined with 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.

[0206] 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.

[0207] 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 6 uplink time units 1020 with overlapping duration at the beginning will conflict with the downlink reception of SIB19. Therefore, for all first devices within the NTN cell, the uplink time units outside the duration of SIB19 start -N TX-RX T C +TA min to SIB19 end -N RX-TX T C +TA max will not conflict with the downlink reception of SIB19. Therefore, within the duration determined based on the TA range, the downlink reception of SIB19 can have higher priority. That is, the first device does not perform uplink transmission within the duration, so that SIB19 can be correctly received. Figure 10 The duration determined based on the TA range is described in detail above. The downlink reception of SIB19 can have higher priority within the duration. That is, the first device does not perform uplink transmission within the duration, so that SIB19 can be correctly received.

[0208] The method embodiments of the present application are described in detail above. The device embodiments of the present application are described in detail below. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments, and therefore, the parts not described in detail can be referred to the foregoing method embodiments. Figures 1 to 10 Figures 11 to 15 The device embodiments of the present application are described in detail below. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments, and therefore, the parts not described in detail can be referred to the foregoing method embodiments.

[0209] Figure 11 is a schematic block diagram of an apparatus for wireless communication according to an embodiment of the present application. The apparatus 1100 can be any one of the first devices described above. Figure 11 The apparatus 1100 shown includes a first transceiver 1110.

[0210] The first transceiver 1110 can be configured to transmit a first TAR according to first information. The first information includes a service time of the first device, and / or a service type of the first device.

[0211] Optionally, the first information further includes one or more of the following information: an indication of a trigger TAR sent by a higher layer; a TA offset threshold configured by a higher layer.

[0212] Optionally, the first transceiver 1110 is further configured to transmit the first TAR when the first device receives the indication of the trigger TAR and the service time of the first device is greater than a first threshold; or not to transmit the first TAR when the service time of the first device is equal to or less than the first threshold.

[0213] Optionally, the first device corresponds to a serving cell of an NTN, and the first threshold is determined according to a service time of a satellite corresponding to the serving cell.

[0214] ​Optionally, the first device corresponds to a serving cell of the NTN, and the service serving time of the first device is determined according to a location of the first device and / or a serving time of a satellite corresponding to the serving cell.

[0215] Optionally, the service type of the first device is related to the TA offset threshold, and the apparatus 1100 further includes a processing unit, which can be configured to set the first timer related to the TA offset threshold according to the service type.

[0216] Optionally, the first TA value in the first TAR is determined according to a TA value in a TA command, a first offset value, a common TA, and a dedicated TA value of the first device, and the first transceiver 1110 is further configured to send, when the first TAR is triggered, the dedicated TA value of the first device or a difference between the first TA value and a second TA value in the first TAR through a first byte segment corresponding to the first TAR, wherein the second TA value is a TA value in a second TAR sent by the first device last time.

[0217] Optionally, the first byte segment corresponding to the first TAR is divided into at least two second byte segments, and one of the at least two second byte segments 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 a TA value in a second TAR sent by the first device last time.

[0218] Optionally, the first TAR is used to determine a first resource, and the first transceiver 1110 is further configured to send or receive the 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.

[0219] Optionally, the first transceiver 1110 in the apparatus 1100 can be a transceiver 1530, and the apparatus 1100 can further include a processor 1510 and a memory 1520, as shown in Figure 15

[0220] Figure 12 is a schematic block diagram of another apparatus for wireless communication according to an embodiment of the present application. The apparatus 1200 can be any one of the second devices described above. Figure 12 As shown in the apparatus 1200 includes a second transceiver 1210.

[0221] The second transceiver 1210 can be configured to receive the first TAR sent by the first device; wherein the first TAR is triggered according to the first information, and the first information includes the service serving time of the first device and / or the service type of the first device.

[0222] ​Optionally, the first information further comprises one or more of the following: an indication of triggering the TAR sent by a higher layer; a TA offset threshold configured by a higher layer.

[0223] Optionally, the first TAR is triggered when the first device receives the indication of triggering the TAR and a service time of the traffic of the first device is greater than a first threshold; or the first TAR is not triggered when the service time of the traffic of the first device is equal to or less than the first threshold.

[0224] Optionally, the second device comprises a satellite in an NTN, and the first threshold is determined according to a service time of the satellite.

[0225] Optionally, the second device comprises a satellite in an NTN, and the service time of the traffic of the first device is determined according to a location of the first device and / or the service time of the satellite.

[0226] Optionally, the type of the traffic of the first device is related to the TA offset threshold, and the TA offset threshold is related to the first timer, and the first timer is set according to the type of the traffic.

[0227] Optionally, the first TA value in the first TAR is determined according to a TA value in a TA command, a first offset value, a common TA and a dedicated TA value of the first device, and the second transceiver 1210 is further configured to receive the dedicated TA value of the first device, or a difference between the first TA value and a second TA value in the first TAR through a first byte segment corresponding to the first TAR when the first TAR is triggered; wherein the second TA value is a TA value in a second TAR sent by the first device last time.

[0228] Optionally, the first byte segment corresponding to the first TAR is divided into at least two second byte segments, and one of the at least two second byte segments 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 a TA value in the second TAR sent by the first device last time.

[0229] Optionally, the first TAR is used to determine a first resource, and the second transceiver 1210 is further configured to receive or send 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.

[0230] Optionally, the second transceiver 1210 in the apparatus 1200 can be a transceiver 1530, and the apparatus 1200 can further include a processor 1510 and a memory 1520, as shown in Figure 15

[0231] ​Figure 13 is a schematic block diagram of an apparatus for wireless communication. The apparatus 1300 can be any one of the first devices described above. Figure 13 The apparatus 1300 shown includes a third transceiver 1310.

[0232] The third transceiver 1310 can be configured to transmit 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 the plurality of resources, and the first priority order corresponds to the first resource.

[0233] Optionally, the first transmission is one of a plurality of transmissions, the plurality of transmissions include a first type of transmission and a second type of transmission other than the first type of transmission, the first priority order includes a priority of the first type of transmission being higher than a priority of the second type of transmission, and the first type of transmission includes one or more of: a downlink transmission of a SIB; a TAR and / or a TAR triggered SR; a transmission enabling / disabling HARQ feedback; and an uplink transmission based on DMRS bundling.

[0234] Optionally, the first type of transmission further includes a downlink transmission of a SIB19, and the first priority order includes a priority of the downlink transmission of the SIB19 being higher than a priority of the transmission enabling / disabling HARQ feedback, the TAR and / or the TAR triggered SR, and the uplink transmission based on DMRS bundling.

[0235] Optionally, the first priority order includes a priority of the transmission enabling / disabling HARQ feedback being higher than a priority of the TAR and / or the TAR triggered SR and the uplink transmission based on DMRS bundling.

[0236] Optionally, the first priority order includes a priority of the TAR and / or the TAR triggered SR being higher than a priority of the uplink transmission based on DMRS bundling.

[0237] Optionally, the first resource is related to a first TAR transmitted by the first device, and the first TAR is triggered according to one or more of: an indication of triggering a TAR transmitted by a higher layer; a TA offset threshold configured by a higher layer; a service time of a service of the first device; and a type of the service of the first device.

[0238] Optionally, the first resource includes a resource corresponding to a guard time, and when the guard time corresponds to a plurality of transmissions, the apparatus 1300 further includes a determining unit configured to determine the first transmission from the plurality of transmissions according to the first priority order, wherein a transmission other than the first transmission in the plurality of transmissions is performed on a resource after the guard time.

[0239] Optionally, the guard time is determined according to an elevation angle between the first device and the satellite in the NTN and / or a change value of the elevation angle within the first time period.

[0240] Optionally, the change value of the elevation angle within the first time period belongs to a plurality of value ranges, the plurality of value ranges include a first value range and a second value range, the first value range corresponds to a first guard time, the second value range corresponds to a second guard time, when a lower limit value of the first value range is greater than or equal to an upper limit value of the second value range, a length of the first guard time is greater than a length of the second guard time.

[0241] Optionally, the start time of the guard time is The end time of the guard time is wherein, represents a current TA value of the first device, Δ TA represents a difference value between the current TA value and a last TA value.

[0242] Optionally, the plurality of resources include a plurality of transmission windows of the SIB19, the plurality of transmission windows include a first transmission window and a second transmission window, the priority order corresponding to the first transmission window includes a highest priority of the downlink transmission of the SIB19, and the priority order corresponding to the second transmission window includes a lowest priority of the downlink transmission of the SIB19.

[0243] Optionally, the third transceiver unit 1310 in the apparatus 1300 can be a transceiver 1530, and the apparatus 1300 can further include a processor 1510 and a memory 1520, as shown in Figure 15 .

[0244] Figure 14 is a schematic block diagram of another apparatus for wireless communication according to an embodiment of the present application. The apparatus 1400 can be any one of the second devices described above. Figure 14 The apparatus 1400 shown in

[0245] 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 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.

[0246] Optionally, the first transmission is one of a plurality of transmissions, the plurality of transmissions comprising a first type of transmission and a second type of transmission other than the first type of transmission, the first priority order comprising a priority of the first type of transmission being higher than a priority of the second type of transmission, the first type of transmission comprising one or more of: a downlink reception of a SIB; a TAR and / or a TAR triggered SR; a transmission enabling / disabling HARQ feedback; an uplink transmission based on DMRS bundling.

[0247] Optionally, the first type of transmission further comprises a downlink reception of a SIB19, the first priority order comprising a priority of the downlink reception of the SIB19 being higher than a priority of the transmission enabling / disabling HARQ feedback, the TAR and / or the TAR triggered SR, and the uplink transmission based on DMRS bundling.

[0248] Optionally, the first priority order comprises a priority of the transmission enabling / disabling HARQ feedback being higher than a priority of the TAR and / or the TAR triggered SR, and the uplink transmission based on DMRS bundling.

[0249] Optionally, the first priority order comprises a priority of the TAR and / or the TAR triggered SR being higher than a priority of the uplink transmission based on DMRS bundling.

[0250] Optionally, the first resource is related to a first TAR transmitted by the first device, the first TAR being triggered according to one or more of: an indication of triggering a TAR transmitted by a higher layer; a TA offset threshold configured by a higher layer; a service time of traffic of the first device; and a type of traffic of the first device.

[0251] Optionally, the first resource comprises a resource corresponding to a guard time, the first priority order being used to determine the first transmission among a plurality of transmissions when the guard time corresponds to the plurality of transmissions, wherein a transmission other than the first transmission among the plurality of transmissions is performed on a resource after the guard time.

[0252] Optionally, the guard time is determined according to an elevation angle between the first device and a satellite in the NTN and / or a change value of the elevation angle within a first time period.

[0253] Optionally, the change value of the elevation angle within the first time period belongs to a plurality of value ranges, the plurality of value ranges comprising a first value range and a second value range, the first value range corresponding to a first guard time, the second value range corresponding to a second guard time, when a lower limit value of the first value range is greater than or equal to an upper limit value of the second value range, a length of the first guard time is greater than a length of the second guard time.

[0254] Optionally, a start time of the guard time is A termination time of the guard time is wherein, represents a current TA value of the first device, Δ TA represents a difference between the current TA value and a previous TA value.

[0255] Optionally, the plurality of resources comprises a plurality of transmission windows of the SIB19, the plurality of transmission windows comprises a first transmission window and a second transmission window, the priority order corresponding to the first transmission window comprises a highest priority of downlink reception of the SIB19, and the priority order corresponding to the second transmission window comprises a lowest priority of downlink reception of the SIB19.

[0256] Optionally, the fourth transceiver 1410 in the apparatus 1400 can be a transceiver 1530, and the apparatus 1400 can further include a processor 1510 and a memory 1520, as shown in Figure 15 .

[0257] Figure 15 As shown in the structural schematic diagram of the communication apparatus of the embodiment of the present application. Figure 15 The dashed line in the apparatus 1500 indicates that the unit or module is optional. The apparatus 1500 can be used to implement the method described in the foregoing method embodiments. The apparatus 1500 can be a chip, a terminal device or a network device.

[0258] The apparatus 1500 can include one or more processors 1510. The processor 1510 can support the apparatus 1500 to implement the method described in the foregoing method embodiments. The processor 1510 can be a general-purpose processor or a dedicated processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also 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 gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0259] The apparatus 1500 can further include one or more memories 1520. The memory 1520 stores a program, which can be executed by the processor 1510, so that the processor 1510 executes the method described in the foregoing method embodiments. The memory 1520 can be independent of the processor 1510 or integrated in the processor 1510.

[0260] The apparatus 1500 can further include a transceiver 1530. The processor 1510 can communicate with other devices or chips through the transceiver 1530. For example, the processor 1510 can perform data transceiving with other devices or chips through the transceiver 1530.

[0261] The embodiment of the present application further provides a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the first device or the second device provided by the embodiment of the present application, and the program causes a computer to execute the method performed by the first device or the second device in the various embodiments of the present application.

[0262] The computer readable storage medium can be any available medium or a data storage device such as a server, data center, etc. integrated with one or more available medium sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) and the like.

[0263] The embodiment of the present application further provides a computer program product. The computer program product includes a program. The computer program product can be applied to the first device or the second device provided by the embodiment of the present application, and the program causes a computer to execute the method performed by the first device or the second device in the various embodiments of the present application.

[0264] In the above embodiments, all or part of the embodiments can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part of the embodiments can be realized 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 the present 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 through a wired (for example, coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner.

[0265] The embodiments of the present application further provide a computer program. The computer program can be applied to the first device or the second device provided by the embodiments of the present application, and the computer program enables a computer to execute the method performed by the first device or the second device in the embodiments of the present application.

[0266] The terms "system" and "network" can be used interchangeably in the present application. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third", and "fourth" and the like in the description and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0267] In the embodiments of the present application, the "indication" mentioned can be direct indication, or indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained directly through A; or A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or A and B have an associated relationship.

[0268] In the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and an indicated, a configuration and a configured relationship.

[0269] In the embodiments of the present application, "predefined" or "preconfigured" can be realized by pre-saving corresponding codes, tables or other means for indicating related information in devices (such as terminal devices and network devices), and the specific implementation manner is not limited in the present application. For example, predefinition can refer to definition in a protocol.

[0270] In the embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, which can include LTE protocol, NR protocol and related protocols applied in future communication systems, and the present application is not limited thereto.

[0271] In the embodiments of the present application, according to A to determine B does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0272] In the embodiments of the present application, the term "and / or" is only a description of the associated relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects.

[0273] The sequence of the above processes does not mean the execution sequence in the embodiments of the present application. The execution sequence of the processes should be determined according to the functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0274] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. For example, the division of the units is only a logical function division. There can be another division manner for the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between the units can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0275] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units. That is, they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to the actual needs to achieve the purposes of the embodiments of the present application.

[0276] In addition, each function unit in the embodiments of the present application can be integrated in a processing unit, or each unit can exist physically as a separate unit, or two or more units can be integrated in one unit.

[0277] The above describes only the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection 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 the service time of the first device and / or the service type of the first device; The first information includes an indication sent from a higher layer to trigger TAR; The method further includes: The first device sends or receives 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 the plurality of resources, and the first priority order corresponds to the first resource.

2. The method according to claim 1, characterized in that, The first information also includes: The timing advance TA offset threshold is configured at a higher level.

3. The method according to claim 2, characterized in that, The method further includes: When the first device receives the instruction to trigger a TAR, and the service time of the first device exceeds a first threshold, the first device sends the first TAR; or, When the service time of the first device is equal to or less than the first threshold, the first device does not send the first TAR.

4. The method according to claim 3, characterized in that, The first device corresponds to the serving cell of the non-terrestrial network NTN, and the first threshold is determined based on the service time of the satellite corresponding to the serving cell.

5. The method according to any one of claims 1-4, characterized in that, 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.

6. The method according to any one of claims 1-4, characterized in that, The service type of the first device is related to the TA offset threshold, and the method further includes: The first device sets a first timer related to the TA offset threshold according to the service type.

7. The method according to any one of claims 1-4, characterized in that, The first TA value in the first TAR is determined based on four factors: the TA value in the TA command, the first offset value, the common TA, and the dedicated TA value of the first device. The method further includes: When the first TAR is triggered, the first device sends the first device's dedicated TA value through the first byte segment corresponding to the first TAR, or the difference between the first TA value and the second TA value; The second TA value is the TA value in the second TAR sent by the first device in the last time.

8. The method according to any one of claims 1-4, 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.

9. 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 the service time of the first device and / or the service type of the first device. The first information includes an indication sent from a higher layer to trigger TAR; 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.

10. The method according to claim 9, characterized in that, The first information also includes: The timing advance TA offset threshold is configured at a higher level.

11. The method according to claim 10, characterized in that, When the first device receives the instruction to trigger TAR, and the service time of the first device is greater than the 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.

12. The method according to claim 11, characterized in that, The second device includes a satellite in a non-terrestrial network (NTN), and the first threshold is determined based on the service time of the satellite.

13. The method according to any one of claims 9-12, characterized in that, 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.

14. The method according to any one of claims 9-12, characterized in that, The service type of the first device is related to the TA offset threshold, which is related to the first timer, and the first timer is set according to the service type.

15. The method according to any one of claims 9-12, characterized in that, The first TA value in the first TAR is determined based on four factors: the TA value in the TA command, the first offset value, the common TA, and the dedicated TA value of the first device. The method further includes: When the first TAR is triggered, the second device receives the dedicated TA value of the first device through the first byte segment corresponding to the first TAR, or the difference between the first TA value and the second TA value; The second TA value is the TA value in the second TAR sent by the first device in the last time.

16. The method according to any one of claims 9-12, 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.

17. An apparatus for wireless communication, characterized in that, The device is a first equipment, and the first equipment includes: The first transceiver unit is used to send a first advance time report (TAR) based on the first information. The first device supports half-duplex communication mode. The first information includes the service time of the first device and / or the service type of the first device; The first information includes an indication sent from a higher layer to trigger TAR; The first transceiver unit is further configured 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 the plurality of resources, and the first priority order corresponds to the first resource.

18. The apparatus according to claim 17, characterized in that, The first information also includes: The timing advance TA offset threshold is configured at a higher level.

19. The apparatus according to claim 18, characterized in that, The first transceiver unit is also used for: When the first device receives the instruction to trigger a TAR, and the service time of the first device exceeds a first threshold, the first TAR is sent; or, When the service time of the first device is equal to or less than the first threshold, the first TAR is not sent.

20. The apparatus according to claim 19, characterized in that, The first device corresponds to the serving cell of the non-terrestrial network NTN, and the first threshold is determined based on the service time of the satellite corresponding to the serving cell.

21. The apparatus according to any one of claims 17-20, characterized in that, 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.

22. The apparatus according to any one of claims 17-20, characterized in that, The service type of the first device is related to the TA offset threshold, and the first device also includes: The processing unit is configured to set a first timer related to the TA offset threshold according to the service type.

23. The apparatus according to any one of claims 17-20, characterized in that, 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 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.

24. The apparatus according to any one of claims 17-20, 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.

25. An apparatus for wireless communication, characterized in that, The device is a second piece of equipment, and the second piece of equipment includes: The second transceiver unit is used to receive the first advance timing report (TAR) sent by the first device, which supports half-duplex communication mode. The first TAR is triggered based on first information, which includes the service time of the first device and / or the service type of the first device. The first information includes an indication sent from a higher layer to trigger TAR; The second transceiver unit is further configured to receive or send a first transmission on a 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.

26. The apparatus according to claim 25, characterized in that, The first information also includes: The timing advance TA offset threshold is configured at a higher level.

27. The apparatus according to claim 26, characterized in that, When the first device receives the instruction to trigger TAR, and the service time of the first device is greater than the 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.

28. The apparatus according to claim 27, characterized in that, The second device includes a satellite in a non-terrestrial network (NTN), and the first threshold is determined based on the service time of the satellite.

29. The apparatus according to any one of claims 25-28, characterized in that, 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.

30. The apparatus according to any one of claims 25-28, characterized in that, The service type of the first device is related to the TA offset threshold, which is related to the first timer, and the first timer is set according to the service type.

31. The apparatus according to any one of claims 25-28, characterized in that, 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 is also used 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.

32. The apparatus according to any one of claims 25-28, 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.

33. A communication device, characterized in that, It includes a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to perform the method as described in any one of claims 1-8 or 9-16.

34. A communication device, characterized in that, Includes a processor for calling a program from memory to perform the method as described in any one of claims 1-8 or 9-16.

35. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-8 or 9-16.

36. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-8 or 9-16.

37. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-8 or 9-16.

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