Method and terminal device for wireless communication

Abstract

A method for wireless communication and a terminal device are provided. The method comprises the following steps: the terminal equipment determines whether to execute relaxed positioning measurement based on first information; wherein the first information is associated with one or more of the following information: signal quality of a synchronization signal block SSB of a serving cell; and the signal quality of the neighbor cell. In the embodiment of the invention, whether the relaxation positioning measurement can be executed or not is judged based on the signal quality of the SSB of the serving cell and / or the signal quality (namely the first information) of the adjacent cell, so that the accuracy of a mobility judgment result of the terminal equipment is improved, and the reliability of the relaxation measurement is improved.

Description

Method and terminal device for wireless communication Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method and terminal device for wireless communication. Background Art

[0002] To reduce power consumption, a terminal device can perform relaxed positioning measurements if relevant measurement relaxation criteria (such as low mobility criteria) are met. Typically, these relaxation criteria are associated with the signal quality of the terminal device's serving cell. However, in some cases, the signal quality of the serving cell may not accurately reflect the mobility of the terminal device.

[0003] Summary of the Invention

[0004] The present application provides a method and terminal device for wireless communication. The following introduces various aspects of the present application.

[0005] In a first aspect, a method for wireless communication is provided, comprising: a terminal device determining whether to perform relaxed positioning measurement based on first information; wherein the first information is associated with one or more of: the signal quality of the synchronization signal block SSB of the serving cell; and the signal quality of the neighboring cell.

[0006] According to a second aspect, a terminal device is provided, comprising: a determination unit for determining whether to perform relaxed positioning measurement based on first information; wherein the first information is associated with one or more of the following: the signal quality of the synchronization signal block SSB of the serving cell; and the signal quality of the neighboring cell.

[0007] In a third aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0008] In a fourth aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device. In another possible design, the system may also include other devices that interact with the terminal device in the solution provided in the embodiment of the present application.

[0009] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a terminal to execute part or all of the steps in the method of the first aspect above.

[0010] In a sixth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a terminal to perform some or all of the steps of the method of the first aspect described above. In some implementations, the computer program product may be a software installation package.

[0011] In a seventh aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in any one of the first aspects.

[0012] In an eighth aspect, an embodiment of the present application provides a chip comprising a memory and a processor, wherein the processor can call and run a computer program from the memory to implement some or all of the steps described in the method of the first aspect above.

[0013] In an embodiment of the present application, based on the signal quality of the synchronization / physical broadcast channel block (SSB) of the serving cell and / or the signal quality of the neighboring cell (i.e., the first information), it is determined whether the relaxed positioning measurement can be performed. Since the synchronization signal block is sent through beamforming and has a certain directionality, the judgment result of the mobility of the terminal device can be refined; at the same time, the mobile state of the terminal device is jointly judged by the signal quality of multiple cells, which helps to improve the accuracy of the judgment result, thereby helping to improve the reliability of the relaxed measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a wireless communication system 100 used in an embodiment of the present application.

[0015] FIG2 is an example diagram of the TDOA positioning method.

[0016] FIG3 is a diagram illustrating an example of beam scanning.

[0017] FIG4 is an example diagram of the mobile state of a terminal device.

[0018] FIG5 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

[0019] Figure 6 is an example diagram of the positional relationship between the terminal device and the SSB0 beam in Figure 4.

[0020] FIG7 is a schematic diagram of the positional relationship between the terminal device, the serving cell, and the neighboring cell in FIG4 .

[0021] FIG8 is a schematic flowchart of another method for wireless communication according to an embodiment of the present application.

[0022] FIG9 is a schematic diagram showing changes in the signal quality of the SSB of the serving cell provided in an embodiment of the present application.

[0023] FIG10 is a schematic diagram showing changes in signal quality of a serving cell and a neighboring cell provided in an embodiment of the present application.

[0024] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0025] FIG12 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in this application will be described below with reference to the accompanying drawings. To facilitate understanding of this application, the following describes a communication system applicable to an embodiment of this application with reference to FIG1 .

[0027] Figure 1 illustrates a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 within the coverage area.

[0028] FIG1 exemplarily shows a network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0029] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0030] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0031] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, 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 a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through the base station.

[0032] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0033] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0034] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0035] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0036] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0037] For ease of understanding, the communication process involved in the embodiments of the present application is introduced below.

[0038] Traditional positioning

[0039] Typically, positioning techniques can be based on time of arrival, time difference of arrival (TDOA), received signal strength, and angle-of-arrival (AOA).

[0040] TDOA is a positioning method that uses time difference of arrival (TDOA), also known as hyperbolic positioning. The TDOA algorithm doesn't directly use the signal arrival time, but rather the time difference between signals received by multiple base stations to determine the location of a moving target.

[0041] TDOA positioning requires that the network devices involved in positioning are time synchronized. When applying uplink positioning, the terminal device can send an uplink sounding reference signal (SRS), and each network device needs to measure the reference signal sent by the terminal device to determine the path difference between the terminal device and the signals of different network devices. Among them, more than two unrelated path difference results constitute the intersection point of the hyperbola, which is the positioning result. When applying downlink positioning, each network device sends a downlink positioning reference signal (DL-PRS), and the terminal device needs to measure the reference signal sent by each network device to determine the path difference between the terminal device and the signals of different network devices. Among them, more than two unrelated path difference results constitute the intersection point of the hyperbola, which is the positioning result. If the two base stations are not time synchronized, then the calculation result of the signal path difference between the terminal and the two base stations will contain a value that is proportional to the degree of time asynchrony between the two base stations, resulting in deviation in the positioning result.

[0042] Figure 2 illustrates an example of the TDOA positioning method. Referring to Figure 2 , d1, d2, d3, and d4 correspond to the distances between network devices 1, 4, and terminal device 210, respectively. d4-d1, d4-d3, d3-d2, and d2-d1 correspond to different hyperbolas, and the intersection of the hyperbolas represents the terminal's location. This indicates that at least two hyperbolas, or three network devices, are required to locate the terminal.

[0043] AOA (azimuth of departure) positioning uses the transmitting and receiving antenna arrays to measure the angle of arrival and departure of the signal, thereby obtaining the angle information between the terminal device and the network device. The azimuth information from the terminal device to different network devices is then used to draw different straight lines. The intersection of these lines is the estimated location of the terminal device.

[0044] Radio resource control (RRC) state and mobility management

[0045] Currently, the protocol defines three RRC states of terminal devices: RRC connected (RRC_connected) state, RRC idle (RRC-idle) state and RRC inactive (RRC-inactive) state.

[0046] The RRC connection state may refer to the state in which the terminal device is in when the RRC release is not performed after the random access process is completed. An RRC connection exists between the terminal device and a network device (e.g., an access network device). In the RRC connection state, the terminal device can transmit data with the network device, such as downlink data transmission and / or uplink data transmission. Alternatively, the terminal device can also transmit terminal device-specific data channels and / or control channels with the network device to transmit specific information or unicast information of the terminal device.

[0047] In the RRC connected state, the network device can determine the cell-level location information of the terminal device, that is, the network device can determine the cell to which the terminal device belongs. In the RRC connected state, after the terminal device moves, such as from one cell to another, the network device can control the terminal device to perform cell handover. Therefore, it can be seen that the mobility management of the terminal device in the RRC connected state may include cell handover. In addition, the mobility management of the terminal device in the RRC connected state can be controlled by the network device. Accordingly, the terminal device can switch to a designated cell according to the instructions issued by the network device.

[0048] The RRC idle state refers to the state of the terminal device when it is resident in a cell but is not performing random access. The terminal device usually enters the RRC idle state after being powered on or after RRC is released. In the RRC idle state, there is no RRC connection between the terminal device and the network device (such as the resident network device), the network device does not store the context of the terminal device, and no connection is established between the network device and the core network for the terminal device. If the terminal device needs to enter the RRC connected state from the RRC idle state, it is necessary to initiate the RRC connection establishment process.

[0049] In the RRC idle state, the core network (CN) can send a paging message to the terminal device, that is, the paging process can be triggered by the CN. Optionally, the paging area can also be configured by the CN. In some cases, for a terminal device in the RRC idle state, when the terminal device moves (for example, from one cell to another), the terminal device can initiate a cell reselection process. In other cases, for a terminal device in the RRC idle state, when the terminal device needs to access a cell, the terminal device can initiate a cell selection process. That is, the mobility management of the terminal device in the RRC idle state may include cell reselection and / or cell selection.

[0050] The RRC inactive state is defined to reduce air interface signaling, quickly restore wireless connections, and quickly resume data services. The RRC inactive state is a state between the connected and idle states. A terminal device previously entered the RRC connected state and then released the RRC connection with the network device, but the network device retained the terminal device's context. Furthermore, the connection established between the network device and the core network for the terminal device is not released. This means that the user plane and control plane bearers between the RAN and CN are still maintained, indicating a CN-NR connection.

[0051] In the RRC inactive state, the RAN can send a paging message to the terminal device, that is, the paging process can be triggered by the RAN. The RAN-based paging area is managed by the RAN, and the network equipment can know the location of the terminal device based on the RAN paging area level.

[0052] In some cases, for a terminal device in an RRC inactive state, when the terminal device moves (for example, from one cell to another), the terminal device may initiate a cell reselection process. In other cases, for a terminal device in an RRC inactive state, when the terminal device needs to access a cell, the terminal device may initiate a cell selection process. In other words, the mobility management of a terminal device in an RRC inactive state may include cell reselection and / or cell selection.

[0053] Radio resource management (RRM) measurement relaxation mechanism

[0054] RRM measurement is a type of mobility measurement, and the results of mobility measurements can be used for cell selection, cell handover, and cell reselection. In some implementations, a terminal device in an RRC inactive state or an RRC idle state can perform RRM measurements by receiving and measuring SSBs sent by the serving cell and neighboring cells to obtain RRM measurement results. When certain conditions are met, the terminal device can perform RRM measurement relaxation (e.g., by reducing SSB measurements) to save energy.

[0055] The protocol (TS 38.304, section 5.2.4.9) defines four relaxed measurement criteria: for devices not at the cell edge, low mobility devices, stationary reduced capability (RedCap) devices, and stationary reduced capability devices not at the cell edge. The following describes each of these criteria.

[0056] The low mobility criterion is primarily used to determine whether a terminal device is in a low-mobility state. If the terminal device is in a low-mobility state, meaning its location is relatively fixed, then cell reselection is unlikely, and the terminal device can perform RRM measurement relaxation. If the terminal device is in a high-mobility state, meaning its location fluctuates significantly, then cell reselection is likely to be necessary, and RRM measurement relaxation is not necessary.

[0057] Whether a terminal device is in a low mobility state can be determined based on the RRM measurement results of the serving cell. For example, the terminal device can measure the RRM measurement results of the serving cell at different times. If the RRM measurement results of the serving cell change little at different times, that is, the signal quality of the serving cell is relatively stable, it indicates that the terminal device is in a low mobility state.

[0058] In one implementation, the low mobility criterion may mean that when the change in the reference signal receiving power (RSRP) of the terminal device on the serving cell within a period of time TSearchDeltaP is less than SSearchDeltaP, it is considered that the terminal device meets the measurement relaxation criterion. That is, within a period of time TSearchDeltaP, (SrxlevRef – Srxlev) < SSearchDeltaP (Formula 1) is satisfied. Here, Srxlev represents the current signal amplitude of the serving cell, and SrxlevRef represents the signal amplitude reference value of the serving cell. Generally, the use of SrxlevRef can follow the following rules.

[0059] Rule 1: When the serving cell changes after the terminal device performs cell selection or cell reselection, the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell (i.e., Srxlev).

[0060] Rule 2: If the signal amplitude of the serving cell is greater than the signal amplitude reference value, i.e., (Srxlev - SrxlevRef) > 0, the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell.

[0061] Rule 3: If the measurement relaxation criterion is not met within the time TSearchDeltaP (i.e., Formula 1 is not satisfied), the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell.

[0062] The non-cell-edge criterion is mainly used to determine whether the terminal device is in the edge cell position of the serving cell. If the terminal device is in the non-edge cell position of the serving cell, the terminal device has little need for cell reselection and can perform RRM measurement relaxation to achieve the purpose of energy saving for the terminal device. If the terminal device is in the edge cell position of the serving cell, the terminal device has a greater need for cell reselection, and the terminal device may not perform RRM measurement relaxation.

[0063] The non-cell-edge criterion mainly defines the RRM measurement threshold. By comparing the RRM measurement result with the RRM measurement threshold, it can be determined whether the terminal device is in the non-edge cell position. For example, if the RRM measurement result is greater than the RRM measurement threshold, it means that the terminal device is in the non-edge cell position of the serving cell; if the RRM measurement result is less than or equal to the RRM measurement threshold, it means that the terminal device is in the edge cell position of the serving cell.

[0064] The following takes the RRM measurement results of RSRP and reference signal receiving quality (RSRQ) as an example to introduce the non-cell edge criterion. The network device can define two threshold values ​​SSearchThresholdP and SSearchThresholdQ of the non-cell edge criterion by configuring the cell edge evaluation (cellEdgeEvaluation) parameter to the terminal device. Among them, SSearchThresholdP is the measurement threshold value of RSRP, and SSearchThresholdQ is the measurement threshold value of RSRQ. The terminal device can measure the RSRP and RSRQ of the serving cell to obtain the measurement value of RSRP and the measurement value of RSRQ of the serving cell. When the measured value of the RSRP of the serving cell (such as the current signal amplitude Srxlev of the serving cell) is greater than SSearchThresholdP (Srxlev>SSearchThresholdP, i.e., Formula 2), and the measured value of RSRQ (such as the current signal strength Squal of the serving cell) is greater than SSearchThresholdQ (Squal> SSearchThresholdQ, i.e., Formula 3), the terminal device meets the non-cell edge criterion and the terminal device can perform RRM measurement relaxation.

[0065] Of course, the network device may also configure only one parameter of SSearchThresholdP and SSearchThresholdQ. For example, the network device may only configure SSearchThresholdP, but not SSearchThresholdQ. In this case, the terminal device may only measure the RSRP of the serving cell. When the measured value of the RSRP of the serving cell is greater than SSearchThresholdP, the terminal device meets the non-cell edge criterion, and the terminal device may relax the RRM measurement. For another example, the network device may only configure SSearchThresholdQ, but not SSearchThresholdP. In this case, the terminal device may only measure the RSRQ of the serving cell. When the measured value of the RSRQ of the serving cell is greater than SSearchThresholdQ, the terminal device meets the non-cell edge criterion, and the terminal device may relax the RRM measurement.

[0066] The stationary criterion for a low-capability terminal can be (SrxlevRefStationary – Srxlev) < SSearchDeltaP-Stationary (Formula 4), where Srxlev can represent the signal amplitude of the previous serving cell, and SrxlevRefStationary can represent the reference value of the signal amplitude of the current serving cell.

[0067] Generally, the use of SrxlevRefStationary can follow the following rules.

[0068] Rule 1: When the terminal device performs cell selection or cell reselection and the serving cell changes, the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell (i.e., Srxlev).

[0069] Rule 2: If the signal amplitude of the serving cell is greater than the signal amplitude reference value, i.e., (Srxlev - SrxlevRefStationary) > 0, the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell.

[0070] Rule 3: If the criterion for measurement relaxation is not met within the TSearchDeltaP-Stationary time (i.e., Formula 4 is not satisfied), the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell.

[0071] In some embodiments, the relaxation measurement criterion defined in Clause 5.2.4.9.3 (the non-cell-edge criterion for stationary low-capability terminals) can mean that if Srxlev > SSearchThresholdP2 and Squal > SSearchThresholdQ2 are satisfied within a period of TSearchDeltaP-Stationary, the terminal device can perform RRM measurement relaxation. Here, Srxlev can represent the signal amplitude of the current serving cell, and Squal can represent the signal strength of the current serving cell.

[0072] Low Power High Accuracy Positioning (LPHAP)

[0073] Typically, a terminal device in an RRC inactive state or an RRC idle state must wake up to receive each positioning reference signal (PRS) indicated by a local management function (LMF) to maintain high positioning accuracy. However, this results in greater up / ramp-down power consumption.

[0074] In some embodiments, the LPHAP terminal device may be in a low-mobility state or located in the center of a cell (such as in a factory area and rarely moves or moves very little). In this case, it can be assumed that the terminal device rarely changes its location. Therefore, the terminal device does not need to frequently measure DL-PRS (or send SRS), thereby achieving energy saving.

[0075] Delayed positioning request

[0076] For a terminal device in an RRC inactive state or an RRC idle state, when the terminal device was previously in an RRC connected state, the terminal device may be configured with at least one location reporting event. The types of location reporting events may include periodic events and triggered events.

[0077] For periodic location reporting events, the location services (LCS) service request may include the time interval for consecutive location reports and the total number of reports. For area event reporting, the LCS service request includes details of the target geographic area, the events to be reported are the terminal device being within the target area, the terminal device entering or leaving the target area, the duration of the event report, the minimum and maximum time intervals between consecutive event reports, the maximum event sampling interval, whether the event report includes a location estimate (and the quality of service (QoS) associated with the location), and whether only one location report is required or multiple location reports are required. For mobile event reporting, the LCS service request includes the linear distance threshold, the duration of the event report, the minimum and maximum time intervals between consecutive event reports, the maximum event sampling interval, whether the event report includes a location estimate (and the quality of service (QoS) associated with the location), and whether only one location report is required or multiple location reports are required.

[0078] When one of these events is detected, the terminal device in the RRC inactive state reports the triggering event to the network device and performs DL-PRS measurement or SRS transmission.

[0079] Beam sweeping

[0080] In newer communication systems (e.g., NR), a multi-beam system can be used to cover the entire cell. That is, each beam in the multi-beam system (e.g., beams 311 to 314) covers a smaller range in the cell, and beam scanning is used to achieve the effect of multiple beams covering the entire cell, as shown in Figure 3.

[0081] During beam scanning, different beams are used at different times to cover different areas within the cell. For example, at time 1, the communication system may use beam 311 to cover the area where terminal device 321 is located. At time 2, the communication system may use beam 312 to cover the area where terminal device 322 is located. At time 3, the communication system may use beam 313 to cover the area where terminal device 323 is located. At time 4, the communication system may use beam 314 to cover the area where terminal device 324 is located.

[0082] To facilitate reception by terminal devices and increase the coverage of a single SSB, each SSB can be beamformed. Each SSB has an SSB index, and each SSB beam corresponds to an SSB index. In some embodiments, different SSBs within a cycle can be assigned to different beams for transmission. Each SSB has a different transmission time, and each beam is transmitted sequentially. This method is called SSB beam scanning, which is cell-wide.

[0083] That is, the beams 311 - 314 correspond to different SSB indices respectively. For example, the beams 311 - 314 correspond to SSB0 - SSB3 respectively.

[0084] As can be seen above, when evaluating the possibility of relaxing measurements, the primary consideration is cell (signal) quality, such as signal amplitude and signal strength. However, when the cell signal quality of a terminal device meets the relaxed measurement criteria, the terminal device may be in a non-low mobility state. An example of this situation is described below with reference to Figure 4.

[0085] Referring to Figure 4 , network device 410 is the network device corresponding to the serving cell of terminal device 420. Terminal device 420 can move along motion trajectory 430, where motion trajectory 430 is a circular path around network device 410. When terminal device 420 moves from position A to position B, the distance between terminal device 420 and network device 410 remains r, meaning that the distance between terminal device 420 and network device 410 remains substantially unchanged. Because the signal quality of the serving cell depends to a certain extent on the distance between network device 410 and terminal device 420, when the distance between network device 410 and terminal device 420 remains substantially unchanged, it can be assumed that the signal quality of the serving cell of terminal device 420 remains substantially unchanged.

[0086] At this point, if a positioning measurement relaxation judgment is performed, the cell signal quality of terminal device 420 may meet the low mobility criterion, and positioning measurement relaxation can be performed. However, as can be seen from Figure 4, terminal device 420 is not actually in a low mobility state. In this case, if positioning measurement relaxation is performed on terminal device 420, a certain error will be introduced.

[0087] In order to solve the above problems, an embodiment of the present application provides a method for wireless communication, which determines whether positioning measurement relaxation can be performed based on the signal quality of the synchronization signal block of the serving cell and / or the signal quality of the neighboring cell (i.e., the first information). Since the synchronization signal block is sent through beamforming and has a certain directionality, the judgment result of the mobility of the terminal device can be refined; at the same time, the mobile state of the terminal device is jointly judged by the signal quality of multiple cells, which helps to improve the accuracy of the judgment result, thereby helping to improve the reliability of the relaxation measurement. The communication method of the embodiment of the present application is described below in conjunction with Figure 5.

[0088] Figure 5 is a schematic flow chart of a wireless communication method according to an embodiment of the present application. The method shown in Figure 5 includes step S510.

[0089] In step S510 , the terminal device determines whether to perform a relaxation positioning measurement based on the first information.

[0090] Based on the foregoing description, it can be seen that the terminal device determines whether to perform relaxed positioning measurement based on the first information. This can be replaced by the terminal device judging the state of the terminal device, such as the mobile state, the position state, etc., based on the first information, thereby determining whether the terminal device performs relaxed positioning measurement. The relaxed positioning measurement mentioned here may, for example, include not performing the current positioning measurement and / or reporting the last positioning measurement result to the network device. The positioning measurement may include DL-PRS measurement and / or SRS transmission.

[0091] In some embodiments, the first information may be associated with one or more of: a signal quality of an SSB of a serving cell; and a signal quality of a neighboring cell.

[0092] In some embodiments, the first information is associated with the signal quality of the serving cell's SSB. As mentioned above, each cell may include multiple SSBs, and beamforming is performed on each SSB. Therefore, associating the first information with the signal quality of the serving cell's SSB can refine the determination of the terminal device's status, such as the determination of the terminal device's mobility, thereby improving the accuracy of the determination result.

[0093] Figure 6 shows an example of the positional relationship between the terminal device and the SSB0 beam in Figure 4. Referring to Figure 6, when the terminal device moves from position A to position B, although the cell-level signal quality of the terminal device's serving cell remains essentially unchanged, the signal quality of SSB0 received by the terminal device changes (i.e., the signal quality of SSB0 decreases). In other words, in this case, the accuracy of the terminal device's movement determination can be improved based on the signal quality of SSB0, thereby helping to improve the reliability of the relaxation measurement.

[0094] In some embodiments, the first information is associated with the signal quality of the SSB of the serving cell and the cell-level signal quality of the serving cell. Combining the cell-level signal quality of the serving cell and the SSB signal quality to determine the mobility state of the terminal device helps to further improve the accuracy of the determination result.

[0095] In some embodiments, the first information is associated with the signal quality of the neighboring cell. For example, the first information can be associated with the signal quality of the neighboring cell and the signal quality of the serving cell. That is, the terminal device can determine whether to perform measurement relaxation based on the signal quality of the neighboring cell and the signal quality of the serving cell. By jointly judging the mobile state of the terminal device through the measurement results of multiple cells, it is helpful to improve the accuracy of the terminal device mobile state judgment result, thereby helping to improve the accuracy of the relaxation measurement.

[0096] Figure 7 is a schematic diagram of the positional relationship between the terminal device, the serving cell, and the neighboring cell in Figure 4. Network device 710 is the network device corresponding to the neighboring cell of the terminal device.

[0097] Referring to FIG. 7, during the process of the terminal device moving from position A to position B, although the signal quality of the serving cell basically remains unchanged, the signal quality of the neighboring cell changes. As can be seen from FIG. 7, the distance between position A and the network device 710 is d1, and the distance between position B and the network device is d2. When the terminal device moves from position A to position B, the distance between the terminal device and the network device 710 changes from d1 to d2, and the signal quality of the neighboring cell received by the terminal device changes. Based on this, it can be determined that the terminal device is in a non-low mobility state. It can be seen that by the signal quality of the neighboring cell, the accuracy of the determination result of the terminal device's mobility state can be improved, thereby improving the reliability of relaxed measurement.

[0098] It should be noted that the above signal quality may refer to RSRP and / or RSRQ.

[0099] In some embodiments, the first information may be associated with the change amount of the signal quality of the SSB of the serving cell. For example, the first information may be associated with the change amount of the signal quality of the SSB of the serving cell within the first time period. Based on the change amount of the signal quality of the SSB of the serving cell, the mobility state of the terminal device can be determined, such as the terminal device being in a low mobility state or a non-low mobility state.

[0100] In some embodiments, the first information may be associated with one or more of the following: a first difference, used to indicate the change amount of the signal quality of the SSB of the serving cell; a first threshold, which is a threshold associated with the change amount of the signal quality of the SSB of the serving cell; and a first time period, which is the time period for determining the change amount of the signal quality of the SSB of the serving cell.

[0101] The above first difference may be, for example, (Srxlev-SSBRef–Srxlev-SSB), where Srxlev-SSB is the signal quality of the SSB of the serving cell, and Srxlev-SSBRef is the reference value of the signal quality of the SSB of the serving cell.

[0102] As an example, if within the first time, the following formula 5 is satisfied, the terminal device performs relaxed positioning measurement. (Srxlev-SSBRef–Srxlev-SSB)<SSearchDeltaP; (Formula 5)

[0103] Where SSearchDeltaP is the first threshold.

[0104] That is to say, if the change amount of the signal quality of the SSB of the serving cell within the first time is less than the first threshold, the terminal device performs relaxed positioning measurement. If the change amount of the signal quality of the SSB of the serving cell within the first time is greater than or equal to the first threshold, the terminal device does not perform relaxed positioning measurement.

[0105] In some embodiments, the use of the reference value of the signal quality of the SSB of the serving cell may follow the following rules.

[0106] Rule 1: When the terminal device performs cell selection or cell reselection and the serving cell changes, the terminal device needs to set the reference value (ie, Srxlev-SSBRef) to the current measured value of the signal amplitude of the serving cell (ie, Srxlev-SSB).

[0107] Rule 2: If the signal amplitude of the serving cell is greater than the signal amplitude reference value, that is, (Srxlev-SSB-Srxlev-SSBRef)>0, the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell.

[0108] Rule 3: If the measurement relaxation criteria are not met within the first time period (ie, Formula 5 is not satisfied), the terminal device needs to set the signal reference value to the current measured value of the signal amplitude of the serving cell.

[0109] In some embodiments, the first information is associated with the signal quality of the SSB of the serving cell, including: the first information is associated with the signal reception power of the SSB of the serving cell; and / or the first information is associated with the signal reception quality of the SSB of the serving cell.

[0110] For example, if the signal reception power of the SSB of the serving cell is greater than the second threshold, and / or the signal reception quality of the SSB of the serving cell is greater than the third threshold, the terminal device performs the relaxed positioning measurement.

[0111] As an example, the first information includes the signal reception power of the SSB of the serving cell and / or the signal reception quality of the SSB of the serving cell. If the first information satisfies one or more of the following formulas, the terminal device performs the relaxed positioning measurement: Srxlev-SSB>SSearchThresholdP; (Formula 6) Squal-SSB>SSearchThresholdQ; (Formula 7)

[0112] Among them, Srxlev-SSB is the signal reception power of SSB of the serving cell, Squal-SSB is the signal reception quality of SSB of the serving cell, SSearchThresholdP is the second threshold, and SSearchThresholdQ is the third threshold.

[0113] As mentioned above, the first information can be associated with the signal quality of the SSB of the serving cell and the cell-level signal quality of the serving cell. That is to say, when the signal quality of the SSB of the serving cell satisfies the above-mentioned relaxation measurement rules (such as satisfying Formula 5 or Formula 6, Formula 7), and the cell-level signal quality of the serving cell satisfies the relaxation measurement rules mentioned above (such as Formula 1 or Formula 2, Formula 3), the terminal device performs measurement relaxation. Otherwise, the terminal device does not perform measurement relaxation.

[0114] As mentioned above, the first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell, where the signal quality of the neighboring cell may refer to the cell-level signal quality of the neighboring cell and / or the signal quality of the SSB of the neighboring cell; the signal quality of the serving cell may refer to the cell-level signal quality of the serving cell and / or the signal quality of the SSB of the serving cell. In other words, the first information may be associated with one or more of the following: the cell-level signal quality of the neighboring cell; the signal quality of the SSB of the neighboring cell; the cell-level signal quality of the serving cell; and the signal quality of the SSB of the serving cell.

[0115] In some embodiments, when the signal quality of the serving cell and / or the signal quality of the SSB of the serving cell meets the relaxed measurement rules, and the signal quality of the neighboring cell and / or the signal quality of the SSB of the neighboring cell meets the relaxed measurement rules, the terminal device performs positioning measurement relaxation.

[0116] The relaxed measurement rules for the signal quality of the neighboring cell and / or the signal quality of the SSB of the neighboring cell are similar to the relaxed measurement rules for the serving cell mentioned above. For example, the relaxed measurement rules for the neighboring cell may include that within a certain period of time, the change in the signal quality of the neighboring cell / the signal quality of the SSB measured by the terminal device is less than a certain threshold; the signal amplitude of the neighboring cell / the signal amplitude of the SSB measured by the terminal device is greater than a certain threshold, and the signal strength of the neighboring cell / the signal strength of the SSB measured by the terminal device is greater than a certain threshold (if the network device is configured with the relevant threshold for the signal strength of the neighboring cell).

[0117] The signal quality of the serving cell and / or the signal quality of the SSB of the serving cell measured by the terminal device satisfying the relaxed measurement rules are the same as those described above. For the sake of brevity, they will not be repeated here.

[0118] In some embodiments, the first information may be associated with a weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell. The weights of the signal quality of the neighboring cell and the signal quality of the serving cell may be the same or different. The signal quality of the neighboring cell mentioned here may include the cell-level signal quality of the neighboring cell and / or the signal quality of the SSB of the neighboring cell; the signal quality of the serving cell may include the cell-level signal quality of the serving cell and / or the signal quality of the SSB of the serving cell.

[0119] Since the signal quality of the neighboring cell may be poor and susceptible to interference, the weight of the signal quality of the serving cell and the signal quality of the neighboring cell may be different. By adjusting the weight value, it helps to avoid the influence of the above-mentioned interference on the judgment result of the mobile status of the terminal device.

[0120] For example, the weight of the signal quality of the neighboring cell is a first weight value, and the weight of the signal quality of the serving cell is a second weight value, where the second weight value is greater than the first weight value. By setting the signal quality of the neighboring cell that is susceptible to interference to a smaller weight value, it helps to avoid the influence of the interference on the judgment result of the terminal device status.

[0121] In some embodiments, the first weight value and / or the second weight value may be determined based on first predefined information, such as protocol predefined information. That is, the first weight value and / or the second weight value may be defined in the protocol.

[0122] In some embodiments, the first weight value and / or the second weight value can be determined based on the first pre-configuration information. For example, the first weight value and / or the second weight value can be pre-configured by the network device, or the first pre-configuration information is carried in the signaling sent by the network device. For another example, the first pre-configuration information is pre-stored in the terminal device, or the first weight value and / or the second weight value can be pre-stored in the terminal device. As an example, the first weight value and / or the second weight value can be pre-stored in the terminal device before the terminal device leaves the factory.

[0123] It should be noted that the first weight value and / or the second weight value can be determined based on one or more of the above, that is, the first weight value and / or the second weight value can be determined based on the first predefined information and / or the first preconfigured information.

[0124] In some embodiments, if the change in the weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell is less than a fourth threshold, the terminal device performs the relaxed positioning measurement.

[0125] In some embodiments, the signal quality of the neighboring cell may include the signal quality of multiple (e.g., N) neighboring cells to improve the accuracy of the above judgment result. For example, the N neighboring cells are the N cells with the best signal quality among multiple neighboring cells.

[0126] The number of neighboring cells (i.e., N) may be configured, for example, in the relaxed positioning measurement / SRS transmission rules issued by the network device. For another example, the terminal device may receive a target neighboring cell list configured by the network device, where the target neighboring cell list may include identifiers of N neighboring cells.

[0127] In some embodiments, N may be determined based on one or more of the following: second predefined information; and second preconfiguration information. The second preconfiguration information may be carried in signaling sent by the network device, and / or the second preconfiguration information may be pre-stored in the terminal device, such as pre-stored in the terminal device before the terminal device leaves the factory.

[0128] In some embodiments, the signal quality of the SSB of the serving cell is the signal quality of any one of the multiple SSBs associated with the serving cell, and the signal quality of the SSB of the neighboring cell is the signal quality of any one of the multiple SSBs associated with the neighboring cell. For example, if the SSBs of the serving cell include SSB0 to SSB3, then the signal quality of the SSB of the serving cell may be the signal quality of any one of SSB0 to SSB3. For another example, if the SSBs of the neighboring cell include SSB4 to SSB6, then the signal quality of the neighboring cell may be the signal quality of any one of SSB4 to SSB6.

[0129] The signal quality of the SSB of the serving cell may vary depending on the location of the terminal device. Therefore, the SSB of the serving cell mentioned above may refer to the SSB with the best signal quality among the SSBs of the serving cell to avoid measurement errors caused by poor SSB signals. For example, if SSB2 has the best signal quality among SSB0 to SSB3, the signal quality of the SSB of the serving cell may refer to the signal quality of SSB2; if SSB6 has the best signal quality among SSB4 to SSB6, the signal quality of the SSB of the neighboring cell may refer to the signal quality of SSB6.

[0130] In some embodiments, the SSB of the serving cell may be any one or more SSBs among multiple SSBs associated with the serving cell, or may be one or more SSBs with the best signal quality among multiple SSBs associated with the serving cell. The SSB of the neighboring cell may be any one or more SSBs among multiple SSBs associated with the neighboring cell, or may be one or more SSBs with the best signal quality among multiple SSBs of the neighboring cell.

[0131] In some embodiments, the method provided in the embodiments of the present application can be applied to a terminal device in an RRC idle state or an RRC inactive state.

[0132] It should be noted that the above-mentioned weight values, multiple thresholds, the first time and the above-mentioned "certain time" can all be configured by the network device.

[0133] In an embodiment of the present application, whether the terminal device can perform positioning measurement relaxation is determined by using the signal measurement results of the neighboring cell or the signal measurement results of the SSB of the serving cell, which can more accurately detect whether a significant position change has occurred in the terminal device, thereby accurately determining whether the terminal device needs to perform positioning measurement relaxation.

[0134] The method provided in the embodiment of the present application is introduced below with reference to Figures 8 to 10.

[0135] The method shown in FIG8 includes step S810 and step S820.

[0136] In step S810, a terminal device receives first signaling sent by a network. The first signaling may include a positioning measurement relaxation criterion and an optional DL-PRS configuration.

[0137] In step S820, the terminal device determines whether to perform positioning measurement.

[0138] Usually, after a terminal device enters an inactive state / idle state, it first determines whether it needs to perform positioning measurement, that is, whether it needs to measure DL-PRS / perform SRS transmission.

[0139] After the aforementioned location reporting event is met, the terminal device determines whether this location reporting event can be skipped, that is, determines whether the positioning measurement relaxation criteria are met.

[0140] If the positioning measurement relaxation criterion is met, the terminal device does not perform any action after the triggering event (position reporting event) occurs, or sends the last available DL-PRS measurement result or positioning result to the network device.

[0141] If the positioning measurement relaxation criteria are not met, the terminal device performs DL-PRS measurement according to the normal process, and then sends the measurement results to the network device, or requests SRS configuration from the network and performs SRS transmission.

[0142] Taking the first information as the signal quality of the SSB of the serving cell as an example, the method provided in the embodiment of the present application is introduced in combination with Figure 9.

[0143] FIG9 is a schematic diagram showing changes in the signal quality of an SSB beam in a serving cell according to an embodiment of the present application. FIG9 shows two examples of SSB beams, namely, SSB1 and SSB2.

[0144] Referring to Figure 9, when the terminal device moves in the direction of the arrow in the figure, the RSRP value of the corresponding service cell does not change, both are -60dBm, but the RSRP of SSB1 changes from -30dBm to -50dBm, and the RSRP of SSB2 changes from -50dBm to -30dBm.

[0145] In this case, although the RSRP at the cell level does not change after the terminal is displaced, the RSRP at the SSB level changes dramatically. Based on the positioning measurement relaxation criteria for the serving cell's SSB mentioned above, it can be determined that the positioning measurement relaxation criteria are not met, so the terminal device does not need to initiate positioning measurement relaxation.

[0146] Taking the first information as the cell-level signal quality of the serving cell and the cell-level signal quality of the neighboring cell as an example, the method provided in the embodiment of the present application is introduced in conjunction with Figure 10.

[0147] Figure 10 is a schematic diagram of changes in signal quality of a serving cell and a neighboring cell according to an embodiment of the present application. Figure 10 shows two examples of neighboring cells, namely neighboring cell 1 and neighboring cell 2.

[0148] Referring to Figure 10, when the terminal device moves in the direction of the arrow in the figure, the RSRP value of the corresponding service cell does not change, both are -30dBm, but the RSRP of neighboring cell 1 changes from -40dBm to -60dBm, and the RSRP of neighboring cell 2 changes from -60dBm to -40dBm.

[0149] In this case, although the RSRP of the serving cell does not change after the terminal moves, the RSRP of the neighboring cell does change. Based on the positioning measurement relaxation criteria for the neighboring cell mentioned above, it can be determined that the positioning measurement relaxation criteria are not met, so the terminal device does not need to initiate positioning measurement relaxation.

[0150] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 10. The device embodiment of the present application is described in detail below in conjunction with Figures 11 and 12. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0151] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device shown in FIG11 includes: a determining unit 1110 .

[0152] The determination unit 1110 is configured to determine whether to perform relaxed positioning measurement based on first information; wherein the first information is associated with one or more of the following: the signal quality of the synchronization signal block SSB of the serving cell; and the signal quality of the neighboring cell.

[0153] In some embodiments, the first information is associated with the signal quality of the SSB of the serving cell, including: the first information is associated with one or more of the following: a first difference, used to indicate the change in the signal quality of the SSB of the serving cell; a first threshold, which is a threshold associated with the change in the signal quality of the SSB of the serving cell; and a first time period, which is a time period for determining the change in the signal quality of the SSB of the serving cell.

[0154] In some embodiments, the first difference is (Srxlev-SSBRef–Srxlev-SSB), where Srxlev-SSB is the signal quality of the SSB of the serving cell, and Srxlev-SSBRef is a reference value of the signal quality of the SSB of the serving cell.

[0155] In some embodiments, the terminal device determines whether to perform relaxed positioning measurement based on the first information, including: if the first difference within the first time period is less than the first threshold, the terminal device performs relaxed positioning measurement; if the first difference within the first time period is greater than the first threshold, the terminal device does not perform relaxed positioning measurement.

[0156] In some embodiments, the first information is associated with the signal quality of the SSB of the serving cell, including: the first information is associated with the signal reception power of the SSB of the serving cell; and / or the first information is associated with the signal reception quality of the SSB of the serving cell.

[0157] In some embodiments, the determining whether to perform relaxed positioning measurement based on the first information includes: if the signal reception power of the SSB of the serving cell is greater than a second threshold, and / or the signal reception quality of the SSB of the serving cell is greater than a third threshold, then the terminal device performs the relaxed positioning measurement.

[0158] In some embodiments, the first information is associated with the signal quality of the SSB of the serving cell and the cell-level signal quality of the serving cell.

[0159] In some embodiments, the first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell.

[0160] In some embodiments, the first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell, including: the first information is associated with one or more of the following: the cell-level signal quality of the neighboring cell; the signal quality of the SSB of the neighboring cell; the cell-level signal quality of the serving cell; and the signal quality of the SSB of the serving cell.

[0161] In some embodiments, the first information is associated with a weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell.

[0162] In some embodiments, determining whether to perform relaxed positioning measurement based on the first information includes: if the change in the weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell is less than a fourth threshold, then the terminal device performs the relaxed positioning measurement.

[0163] In some embodiments, the weight of the signal quality of the neighboring cell is a first weight value, and the weight of the signal quality of the serving cell is a second weight value, and the first weight value and / or the second weight value are determined based on one or more of the following: first predefined information; and first preconfiguration information, the first preconfiguration information is carried in the signaling sent by the network device, and / or the first preconfiguration information is pre-stored in the terminal device.

[0164] In some embodiments, the signal quality of the neighboring cell includes signal qualities of N neighboring cells.

[0165] In some embodiments, the N neighboring cells are N cells with the best signal quality among multiple neighboring cells.

[0166] In some embodiments, the signal quality of the SSB of the serving cell is the signal quality of any one of the multiple SSBs associated with the serving cell, and the signal quality of the SSB of the neighboring cell is the signal quality of any one of the multiple SSBs associated with the neighboring cell.

[0167] In some embodiments, relaxing the positioning measurement includes not performing the current positioning measurement and / or reporting the last positioning measurement result to the network device.

[0168] In some embodiments, the terminal device is in a radio resource control RRC idle state, or the terminal device is in an RRC inactive state.

[0169] FIG12 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in FIG12 indicate that the unit or module is optional. Apparatus 1200 may be used to implement the method described in the above method embodiment. Apparatus 1200 may be a chip or a terminal device.

[0170] The device 1200 may include one or more processors 1210. The processor 1210 may support the device 1200 to implement the method described in the above method embodiment. The processor 1210 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0171] The apparatus 1200 may further include one or more memories 1220. The memories 1220 store programs that can be executed by the processor 1210, causing the processor 1210 to perform the methods described in the above method embodiments. The memories 1220 may be independent of the processor 1210 or integrated into the processor 1210.

[0172] The apparatus 1200 may further include a transceiver 1230. The processor 1210 may communicate with other devices or chips via the transceiver 1230. For example, the processor 1210 may transmit and receive data with other devices or chips via the transceiver 1230.

[0173] The present invention also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device provided in the present invention, and the program enables a computer to execute the method performed by the terminal device in each embodiment of the present invention.

[0174] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device provided in the present application, and the program causes a computer to execute the method performed by the terminal device in each embodiment of the present application.

[0175] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal device provided in the embodiments of the present application, and the computer program enables a computer to execute the method executed by the terminal device in each embodiment of the present application.

[0176] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0177] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0178] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0179] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0180] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0181] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0182] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0183] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0184] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0185] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0186] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0187] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. 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 computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0188] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for wireless communication, characterized in that: include: The terminal device determines whether to perform a relaxation positioning measurement based on the first information; The first information is associated with one or more of the following: The signal quality of the synchronization signal block SSB of the serving cell; and Signal quality of neighboring cells.

2. The method according to claim 1, characterized in that The first information is associated with the signal quality of the SSB of the serving cell, including: The first information is associated with one or more of the following: A first difference value is used to indicate a change in the signal quality of the SSB of the serving cell; A first threshold value is a threshold value associated with a change in signal quality of the SSB of the serving cell; and The first time period is a time period for determining a change in the signal quality of the SSB of the serving cell.

3. The method according to claim 2, characterized in that The first difference is (Srxlev-SSBRef–Srxlev-SSB), wherein Srxlev-SSB is the signal quality of the SSB of the serving cell, and Srxlev-SSBRef is a reference value of the signal quality of the SSB of the serving cell.

4. The method according to claim 2 or 3, characterized in that: The terminal device determines whether to perform a relaxed positioning measurement based on the first information, including: If the first difference in the first time period is less than the first threshold, the terminal device performs a relaxed positioning measurement; If the first difference within the first time period is greater than or equal to the first threshold, the terminal device does not perform the relaxation positioning measurement.

5. The method according to any one of claims 1 to 4, characterized in that The first information is associated with the signal quality of the SSB of the serving cell, including: The first information is associated with a signal reception power of an SSB of the serving cell; and / or The first information is associated with the signal reception quality of the SSB of the serving cell.

6. The method according to claim 5, characterized in that The terminal device determines whether to perform a relaxed positioning measurement based on the first information, including: If the signal reception power of the SSB of the serving cell is greater than a second threshold, and / or the signal reception quality of the SSB of the serving cell is greater than a third threshold, the terminal device performs the relaxed positioning measurement.

7. The method according to any one of claims 1 to 6, characterized in that The first information is associated with the signal quality of the SSB of the serving cell and the cell-level signal quality of the serving cell.

8. The method according to any one of claims 1 to 7, characterized in that The first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell.

9. The method according to claim 8, characterized in that The first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell, including: The first information is associated with one or more of the following: The cell-level signal quality of the neighboring cell; The signal quality of the SSB of the neighboring cell; The cell-level signal quality of the serving cell; and The signal quality of the SSB of the serving cell.

10. The method according to claim 8 or 9, characterized in that: The first information is associated with a weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell.

11. The method according to claim 10, characterized in that The terminal device determines whether to perform a relaxed positioning measurement based on the first information, including: If the change in the weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell is less than a fourth threshold, the terminal device performs the relaxed positioning measurement.

12. The method according to claim 10 or 11, characterized in that: The weight of the signal quality of the neighboring cell is a first weight value, and the weight of the signal quality of the serving cell is a second weight value, and the first weight value and / or the second weight value are determined based on one or more of the following: first predefined information; as well as The first pre-configuration information is carried in the signaling sent by the network device, and / or the first pre-configuration information is pre-stored in the terminal device.

13. The method according to any one of claims 8 to 12, characterized in that: The signal quality of the neighboring cell includes signal qualities of N neighboring cells.

14. The method according to claim 13, characterized in that The N neighboring cells are N cells with the best signal quality among multiple neighboring cells.

15. The method according to claim 13 or 14, characterized in that The N is determined based on one or more of the following: second predefined information; and Second pre-configuration information, wherein the second pre-configuration information is carried in a signaling sent by a network device, and / or the second pre-configuration information is pre-stored in the terminal device.

16. The method according to any one of claims 1 to 15, characterized in that The signal quality of the SSB of the serving cell is the signal quality of any one of the multiple SSBs associated with the serving cell, and the signal quality of the SSB of the neighboring cell is the signal quality of any one of the multiple SSBs associated with the neighboring cell.

17. The method according to any one of claims 1 to 16, characterized in that The signal quality includes reference signal received power RSRP and / or reference signal received quality RSRQ.

18. The method according to any one of claims 1 to 17, characterized in that The relaxing of the positioning measurement includes not performing the current positioning measurement and / or reporting the last positioning measurement result to the network device.

19. The method according to any one of claims 1 to 18, characterized in that The terminal device is in a radio resource control RRC idle state, or the terminal device is in an RRC inactive state.

20. A terminal device, characterized in that: include: a determining unit, configured to determine whether to perform a relaxation positioning measurement based on the first information; The first information is associated with one or more of the following: The signal quality of the synchronization signal block SSB of the serving cell; and Signal quality of neighboring cells.

21. The device according to claim 20, characterized in that The first information is associated with the signal quality of the SSB of the serving cell, including: The first information is associated with one or more of the following: A first difference value is used to indicate a change in the signal quality of the SSB of the serving cell; A first threshold value is a threshold value associated with a change in signal quality of the SSB of the serving cell; and The first time period is a time period for determining a change in the signal quality of the SSB of the serving cell.

22. The device according to claim 21, characterized in that The first difference is (Srxlev-SSBRef–Srxlev-SSB), wherein Srxlev-SSB is the signal quality of the SSB of the serving cell, and Srxlev-SSBRef is a reference value of the signal quality of the SSB of the serving cell.

23. The device according to claim 21 or 22, characterized in that The terminal device determines whether to perform a relaxed positioning measurement based on the first information, including: If the first difference in the first time period is less than the first threshold, the terminal device performs a relaxed positioning measurement; If the first difference within the first time period is greater than or equal to the first threshold, the terminal device does not Perform a relaxed positioning measurement.

24. The device according to any one of claims 20 to 23, characterized in that The first information is associated with the signal quality of the SSB of the serving cell, including: The first information is associated with a signal reception power of an SSB of the serving cell; and / or The first information is associated with the signal reception quality of the SSB of the serving cell.

25. The device according to claim 24, characterized in that The determining whether to perform relaxation positioning measurement based on the first information comprises: If the signal reception power of the SSB of the serving cell is greater than a second threshold, and / or the signal reception quality of the SSB of the serving cell is greater than a third threshold, the terminal device performs the relaxed positioning measurement.

26. The device according to any one of claims 20 to 25, characterized in that The first information is associated with the signal quality of the SSB of the serving cell and the cell-level signal quality of the serving cell.

27. The device according to any one of claims 20 to 26, characterized in that The first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell.

28. The device according to claim 27, characterized in that The first information is associated with the signal quality of the neighboring cell and the signal quality of the serving cell, including: The first information is associated with one or more of the following: The cell-level signal quality of the neighboring cell; The signal quality of the SSB of the neighboring cell; The cell-level signal quality of the serving cell; and The signal quality of the SSB of the serving cell.

29. The device according to claim 27 or 28, characterized in that The first information is associated with a weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell.

30. The device according to claim 29, characterized in that The determining whether to perform relaxation positioning measurement based on the first information comprises: If the change in the weighted sum of the signal quality of the neighboring cell and the signal quality of the serving cell is less than a fourth threshold, the terminal device performs the relaxed positioning measurement.

31. The device according to claim 29 or 30, characterized in that The weight of the signal quality of the neighboring cell is a first weight value, and the weight of the signal quality of the serving cell is a second weight value, and the first weight value and / or the second weight value are determined based on one or more of the following: first predefined information; as well as The first pre-configuration information is carried in the signaling sent by the network device, and / or the first pre-configuration information is pre-stored in the terminal device.

32. The device according to any one of claims 27 to 31, characterized in that The signal quality of the neighboring cell includes signal qualities of N neighboring cells.

33. The device according to claim 32, characterized in that The N neighboring cells are N cells with the best signal quality among multiple neighboring cells.

34. The device according to claim 32 or 33, characterized in that The N is determined based on one or more of the following: second predefined information; and Second pre-configuration information, wherein the second pre-configuration information is carried in a signaling sent by a network device, and / or the second pre-configuration information is pre-stored in the terminal device.

35. The device according to any one of claims 20 to 34, characterized in that The signal quality of the SSB of the serving cell is the signal quality of any one of the multiple SSBs associated with the serving cell, and the signal quality of the SSB of the neighboring cell is the signal quality of any one of the multiple SSBs associated with the neighboring cell.

36. The device according to any one of claims 20 to 35, characterized in that The signal quality includes reference signal received power RSRP and / or reference signal received quality RSRQ.

37. The device according to any one of claims 20 to 36, characterized in that The relaxing of the positioning measurement includes not performing the current positioning measurement and / or reporting the last positioning measurement result to the network device.

38. The apparatus according to any one of claims 20 to 37, characterized in that The terminal device is in a radio resource control RRC idle state, or the terminal device is in an RRC inactive state.

39. A terminal device, characterized in that: The invention comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 19.

40. A device, characterized in that The invention comprises a processor, which is used to call a program from a memory to execute the method according to any one of claims 1 to 19.

41. A chip, characterized in that: It comprises a processor, which is used to call a program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 19.

42. A computer-readable storage medium, characterized in that: A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 19.

43. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 19.

44. A computer program, characterized in that The computer program enables a computer to execute the method according to any one of claims 1 to 19.

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