Wireless communication method and device

Abstract

Embodiments of the present application provide a method and device for wireless communication. After a terminal device or LMF entity initiates an on-demand PRS request, the terminal device can automatically switch PRS configuration information based on a timer, avoiding unnecessary signaling overhead caused by PRS configuration between the terminal device, base station or TRP, and LMF entity, thereby optimizing communication system performance. The wireless communication method includes: a terminal device receiving first information, wherein the first information is used to indicate target PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information; and the terminal device using the target PRS configuration information to perform PRS measurement while the first timer is running.

Description

Technical Field

[0001] The present invention relates to the field of communications, and more specifically, to a method and device for wireless communications. Background Art

[0002] In the New Radio (NR) system, positioning can be achieved based on positioning reference signals (PRS). To improve efficiency, reduce latency, and increase positioning accuracy, Release 17 (R17 or Rel17) introduced on-demand PRS, which requests the appropriate PRS configuration based on the needs of the terminal device or Location Management Function (LMF) entity. However, how to implement PRS configuration in on-demand PRS is an urgent problem to be solved. Summary of the Invention

[0003] An embodiment of the present application provides a method and device for wireless communication. After a terminal device or LMF entity initiates an on-demand PRS request, the terminal device can automatically switch the PRS configuration information based on a timer, thereby avoiding unnecessary signaling overhead caused by the PRS configuration between the terminal device, base station or TRP, and LMF entity, thereby optimizing the performance of the communication system.

[0004] In a first aspect, a wireless communication method is provided, the method comprising:

[0005] The terminal device receives first information, where the first information is used to indicate target PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information;

[0006] The terminal device performs PRS measurement using the target PRS configuration information during the running of the first timer.

[0007] In a second aspect, a wireless communication method is provided, the method comprising:

[0008] The LMF entity sends first information to the terminal device;

[0009] The first information is used to indicate target positioning reference signal PRS configuration information, or the first information is used to indicate an index of target PRS configuration information; the target PRS configuration information is used by the terminal device to perform PRS measurement during the operation of the first timer.

[0010] According to a third aspect, a wireless communication method is provided, the method comprising:

[0011] The terminal device receives first information, where the first information is used to indicate target PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information;

[0012] The terminal device replaces the stored PRS configuration information with the target PRS configuration information, and uses the target PRS configuration information to perform PRS measurement.

[0013] In a fourth aspect, a terminal device is provided for executing the method in the first aspect.

[0014] Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect.

[0015] In a fifth aspect, a LMF entity is provided for executing the method in the second aspect.

[0016] Specifically, the LMF entity includes a functional module for executing the method in the above second aspect.

[0017] In a sixth aspect, a terminal device is provided for executing the method in the third aspect.

[0018] Specifically, the terminal device includes a functional module for executing the method in the third aspect above.

[0019] In a seventh aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the first aspect.

[0020] In an eighth aspect, a LMF entity is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the second aspect.

[0021] In a ninth aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the third aspect.

[0022] In a tenth aspect, a device is provided for implementing the method in any one of the first to third aspects above.

[0023] Specifically, the apparatus includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the apparatus executes the method in any one of the first to third aspects described above.

[0024] In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to third aspects above.

[0025] In a twelfth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the above-mentioned first to third aspects.

[0026] In a thirteenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to third aspects above.

[0027] With the above technical solution, after a terminal device or LMF entity initiates an on-demand PRS request, the LMF entity can indicate the target PRS configuration information, and the terminal device uses the target PRS configuration information to perform PRS measurement during the first timer. In other words, the terminal device can automatically switch PRS configuration information based on the timer, avoiding unnecessary signaling overhead caused by PRS configuration between the terminal device, base station or TRP, and LMF entity, thereby optimizing communication system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0029] Figure 2 This is a schematic flow chart of an on-demand PRS provided in this application.

[0030] Figure 3 It is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0031] Figure 4 This is a schematic flowchart of an on-demand PRS provided according to an embodiment of the present application.

[0032] Figure 5 It is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.

[0033] Figure 6 This is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0034] Figure 7 It is a schematic block diagram of an LMF entity provided according to an embodiment of the present application.

[0035] Figure 8 This is a schematic block diagram of another terminal device provided according to an embodiment of the present application.

[0036] Figure 9 This is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0037] Figure 10 This is a schematic block diagram of a device provided according to an embodiment of the present application.

[0038] Figure 11 It is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0041] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0042] In some embodiments, 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) networking scenario.

[0043] In some embodiments, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiments of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0044] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0045] The terminal device can be a station (ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0046] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0047] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0048] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0049] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station (gNB) in an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0050] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station set up in a location such as land or water.

[0051] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0052] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0053] Figure 1One network device and two terminal devices are shown as an example. In some embodiments, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area. This embodiment of the present application does not limit this.

[0054] In some embodiments, the 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 embodiments of the present application.

[0055] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be called a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here; the communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0056] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0057] The terms used in the embodiments of this application are intended only to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," "third," and "fourth," etc. in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0058] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0059] In the description of 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.

[0060] In the embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (for example, a terminal device and a network device). The present application does not limit the specific implementation method. For example, predefined can refer to information defined in a protocol.

[0061] 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.

[0062] To facilitate a better understanding of the embodiments of the present application, the positioning technology related to the present application is described.

[0063] Location is one of the indispensable applications in daily life, and people's requirements for positioning latency and accuracy are becoming more and more stringent. In many positioning applications, precise positioning is usually achieved through a combination of multiple technologies. For example, 1. Providing location information in outdoor scenes based on the Global Navigation Satellite System (GNSS); 2. Radio technology (such as LTE networks, which provide multiple options for locating users, wireless networks, ground beacon systems, etc.); 3. Inertial Measurement Units (IMU) or sensors (such as tracking user position based on accelerometers, gyroscopes, magnetometers, or using atmospheric pressure sensors for vertical positioning). These technologies are expected to play an important role in achieving accurate user positioning in the future.

[0064] The enhanced positioning capabilities of the 3rd Generation Partnership Project (3GPP) New Radio (NR) system bring additional gains. Operation in low- and high-frequency bands (i.e., FR1 and FR2) and the use of large antenna arrays provide additional degrees of freedom, significantly improving positioning accuracy. Positioning techniques based on observed time difference of arrival (OTDOA) and uplink time difference of arrival (UL-TDOA), cell identification (Cell-ID) or enhanced cell identification (E-Cell-ID) provide better performance for user positioning by taking time measurements over large bandwidths (low- and high-frequency bands). Utilizing massive antenna systems (such as multiple in multiple out (MIMO)), more accurate user location is achieved by combining time measurements with the spatial and angular domains of the propagation channel.

[0065] Release 15 (Rel-15) NR positioning defines the Cell-ID (including partial cell identifiers) and independent Radio Access Technology (RAT) (RAT-independent) positioning methods based on the Long Term Evolution Positioning Protocol (LPP). Release 16 (Rel-16) focuses on NR standalone RAT-dependent positioning methods, including downlink time difference of arrival (DL-TDOA), downlink angle of departure (DL-AoD), UL-TDOA, uplink angle of departure (UL-AoD), round trip time (RTT), and E-Cell-ID.

[0066] The 3GPP R17 positioning project mainly considers enhancing positioning methods and related reference signals from the aspects of improving accuracy, reducing latency, and improving terminal and network side efficiency.

[0067] To improve efficiency, reduce latency, and enhance positioning accuracy, Release 17 NR positioning proposes an enhancement, on-demand PRS. The main benefits include the following:

[0068] Efficiency: On-demand downlink PRS (DL-PRS) avoids unnecessary overhead and energy waste when terminal positioning is not required at specific times or in specific areas of the network. In the case of beamformed DL-PRS, DL-PRS transmission in all beam scanning directions may result in unnecessary DL-PRS transmission.

[0069] Latency: The current DL-PRS configuration may not be sufficient to meet the response time requirements of Location Services (LCS) clients; for example, the periodicity may be too large.

[0070] Accuracy: The current DL-PRS configuration may not be sufficient to meet the accuracy requirements of the LCS client; for example, the bandwidth may be too small or the number of repetitions may be too few.

[0071] To facilitate a better understanding of the embodiments of the present application, the downlink positioning reference signal related to the present application is described.

[0072] Downlink Positioning Reference Signals (PRSs) primarily consist of downlink positioning reference signals (PRSs). In Rel-16, PRSs are uniformly configured by the LMF entity and sent to the terminal device via LPP messages. Specifically, each base station (e.g., gNB) or Transmission Reception Point (TRP) reports its available PRS configurations to the LMF entity. The LMF coordinates the PRS configurations reported by multiple gNBs / TRPs and generates the final PRS configuration based on these configurations, which is then sent to the terminal device and the gNB / TRP.

[0073] Because different terminals and positioning requests have different accuracy requirements, a uniformly configured PRS configuration may not meet the accuracy needs of individual terminals and applications. Furthermore, for terminals that currently have no positioning requirements, continuously sending PRS on the network side will also incur additional power consumption. The key concept of on-demand PRS is to request the appropriate PRS configuration based on the needs of the terminal / LMF entity, allowing the network side to maximize accuracy while minimizing transmission power consumption.

[0074] In some implementations, the process of On-demand PRS can be as follows: Figure 2 Specifically, Figure 2The On-demand PRS process shown may include the following steps:

[0075] S11-a, the terminal device initiates an on-demand PRS request;

[0076] S11-b, the LMF entity initiates an on-demand PRS request;

[0077] S12-a, the LMF entity sends a PRS configuration update request to the serving cell base station;

[0078] S12-b, the LMF entity sends a PRS configuration update request to the neighboring cell base station of the serving cell;

[0079] S13-a, the serving cell base station sends a PRS configuration update response to the LMF entity;

[0080] S13-b, the neighboring cell base station of the serving cell sends a PRS configuration update response to the LMF entity;

[0081] S14, the LMF entity sends new PRS configuration information to the terminal device.

[0082] It should be noted that only one of S11 - a and S11 - b can be executed, or they can be executed simultaneously.

[0083] In other implementations, the above Figure 2 The base station in can also be TRP.

[0084] If a terminal device initiates an on-demand PRS request, the network must request configuration changes and updates from each gNB / TRP. Upon receiving the request, the gNB / TRP must provide feedback to the LMF entity one by one, which undoubtedly incurs additional signaling overhead. To address this issue, this application proposes a timer-based solution for automatically switching PRS configuration information.

[0085] The technical solution of this application is described in detail below through specific embodiments.

[0086] Figure 3 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, as shown in FIG. Figure 3 As shown, the method 200 may include at least part of the following contents:

[0087] S210, the LMF entity sends first information to the terminal device; wherein the first information is used to indicate target PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information;

[0088] S220, the terminal device receives the first information;

[0089] S230: The terminal device performs PRS measurement using the target PRS configuration information during the running of the first timer.

[0090] That is, the target PRS configuration information is used by the terminal device to perform PRS measurement during the running of the first timer.

[0091] In an embodiment of the present application, after the terminal device or the LMF entity initiates an on-demand PRS request, the LMF entity may send first information to the terminal device to configure target PRS configuration information.

[0092] In some embodiments, the target PRS configuration information is for a full configuration (full config), or the target PRS configuration information is for a variable or changed configuration (delta config). That is, for a delta config, the target PRS configuration information may only include the amount of change in the PRS configuration, and the complete PRS configuration information may be determined based on the existing PRS configuration and the amount of change in the PRS configuration.

[0093] In some embodiments, before executing S210, the terminal device sends a first request message to the LMF entity, where the first request message is used to request on-demand PRS configuration. That is, before executing S210, the terminal device initiates an on-demand PRS request.

[0094] In some implementations, the first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy. That is, the terminal device can determine the PRS configuration information to be requested based on the current service type or positioning accuracy.

[0095] In some embodiments, the PRS configuration information corresponding to the current service type or positioning accuracy is for a full configuration (full config), or the PRS configuration information corresponding to the current service type or positioning accuracy is for a variable or change configuration (delta config). That is, for a delta config, the PRS configuration information corresponding to the current service type or positioning accuracy may only include the change in the PRS configuration.

[0096] In some implementations, when the first request information includes the index of the PRS configuration information corresponding to the current service type or positioning accuracy, the network pre-configures multiple sets of PRS configuration information and their corresponding indexes (index) for the terminal device, so that the terminal device requests the corresponding index (index) corresponding to the corresponding PRS configuration from the network based on the current service type or positioning accuracy requirements.

[0097] In some implementations, the first request information may include specific parameters of the requested PRS configuration information, including but not limited to at least one of the following:

[0098] Changes to periodicity, such as increases or decreases in periodicity;

[0099] Time offset;

[0100] repetitions;

[0101] bandwidth;

[0102] comb patterns;

[0103] The amount of change in the transmit power or frequency of the PRS; for example, the amount of change in the transmit power or frequency of the PRS when a low RSRP is measured on the PRS;

[0104] The amount of beam change (increase / decrease), or the amount of change (increase / decrease) in the transmit beam of the TRP / cell;

[0105] Turn on / off certain PRS configurations of TRP / cell, or deactivate certain PRS configurations of TRP / cell; for example, when measuring high interference, turn on / off certain PRS configurations of TRP / cell, or deactivate certain PRS configurations of TRP / cell.

[0106] In some embodiments, the first request information includes target information, where the target information is used to indicate that the PRS configuration information should be updated. Accordingly, the LMF entity may update the PRS configuration information based on the target information.

[0107] In some embodiments, the target information includes but is not limited to one of the following:

[0108] Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

[0109] For example, the target information may be a cause value, that is, the cause value may be one of: improved positioning accuracy, reduced positioning accuracy, and no current positioning service.

[0110] In some embodiments, before executing S210, the LMF entity may initiate an on-demand PRS configuration request. That is, before executing S210, the LMF entity initiates an on-demand PRS request.

[0111] In some embodiments, the start or restart condition of the first timer includes at least one of the following:

[0112] The terminal device receives feedback information for the information for requesting on-demand PRS configuration;

[0113] The terminal device receives an auxiliary information transmission message for PRS configuration;

[0114] The terminal device sends information for requesting on-demand PRS configuration.

[0115] The auxiliary information transmission message used for PRS configuration may be, for example, an LPP provide assistance data message (LPPProvideAssistanceData).

[0116] In some embodiments, the stop condition of the first timer includes at least one of the following:

[0117] The terminal device receives a message for instructing the terminal device to use default PRS configuration information to perform PRS measurement;

[0118] The terminal device receives an auxiliary information transmission message for PRS configuration.

[0119] In some embodiments, when the first timer times out, the terminal device performs at least one of the following:

[0120] Use the default PRS configuration information to perform PRS measurements;

[0121] Use the last stored PRS configuration information to perform PRS measurement;

[0122] Resending information for requesting on-demand PRS configuration;

[0123] Stop receiving or measuring PRS;

[0124] Stop positioning.

[0125] In an embodiment of the present application, the terminal device uses the target PRS configuration information to perform PRS measurement during the operation of the first timer. When the first timer expires, the terminal device can use the default PRS configuration information to perform PRS measurement, or use the last stored PRS configuration information to perform PRS measurement. That is, the terminal device can automatically switch the PRS configuration information based on the timer, avoiding unnecessary signaling overhead caused by PRS configuration between the terminal device, the base station or the TRP, and the LMF entity, thereby optimizing the performance of the communication system.

[0126] In this embodiment of the present application, the terminal device uses the target PRS configuration information to perform PRS measurement while the first timer is running. When the first timer expires, the terminal device resends information for requesting on-demand PRS configuration. In other words, the terminal device can use and request PRS configuration information based on the timer, increasing the flexibility of PRS configuration.

[0127] In an embodiment of the present application, a terminal device uses the target PRS configuration information to perform PRS measurement while the first timer is running. When the first timer expires, the terminal device stops receiving or measuring the PRS, or stops positioning. That is, the terminal device can use the PRS configuration information based on the timer, control the reception or measurement of the PRS based on the timer, and control the positioning service based on the timer, thereby increasing the flexibility of PRS configuration.

[0128] In some embodiments, the first timer is configured by the LMF entity. Of course, the LMF timer may also be pre-configured or agreed upon by a protocol, which is not limited in this application.

[0129] In some embodiments, the first timer is jointly maintained by the terminal device, the LMF entity, the access network device, or the TRP. That is, the terminal device, the LMF entity, the access network device, or the TRP can jointly maintain the start, restart, and stop of the first timer, as well as the actions that may be triggered after the first timer expires.

[0130] In some embodiments, the first timer is jointly maintained by the terminal device and the LMF entity. That is, the terminal device and the LMF entity can jointly maintain the start, restart, and stop of the first timer, as well as the actions that may be triggered after the first timer expires.

[0131] Therefore, in an embodiment of the present application, after the terminal device or LMF entity initiates an on-demand PRS request, the LMF entity can indicate the target PRS configuration information, and the terminal device uses the target PRS configuration information to perform PRS measurement during the operation of the first timer. That is, the terminal device can automatically switch the PRS configuration information based on the timer, avoiding unnecessary signaling overhead caused by PRS configuration between the terminal device, base station or TRP, and LMF entity, thereby optimizing communication system performance.

[0132] The following describes a specific solution of the present application based on a specific embodiment. Figure 4 As shown, the following steps may be specifically included:

[0133] S21-a. The terminal device initiates an on-demand PRS request, where the on-demand PRS request may include requested PRS configuration information, or the on-demand PRS request may include an index of the requested PRS configuration information. In some implementations, the on-demand PRS request may include specific parameters of the requested PRS configuration information and a cause value (see the above description of the first request information for details).

[0134] S21-b, the LMF entity initiates an on-demand PRS request, where the on-demand PRS request may include requested PRS configuration information, or the on-demand PRS request may include an index of the requested PRS configuration information; in some implementations, the on-demand PRS request may include specific parameters of the requested PRS configuration information and a cause value (see the above description of the first request information for details);

[0135] S22-a, the LMF entity sends a PRS configuration update request to the serving cell base station;

[0136] S22-b, the LMF entity sends a PRS configuration update request to the neighboring cell base station;

[0137] S23-a, the serving cell base station sends a PRS configuration update response to the LMF entity;

[0138] S23-b, the neighboring cell base station sends a PRS configuration update response to the LMF entity;

[0139] S24, the LMF entity sends an on-demand PRS response to the terminal device, where the on-demand PRS response may include target PRS configuration information, or the PRS activation message may include an index of the target PRS configuration information;

[0140] S25, the terminal device starts a first timer (see the above description of the first timer for details).

[0141] S26 : The terminal device uses the target PRS configuration information to perform PRS measurement and position estimation during the running of the first timer.

[0142] It should be noted that only one of S21 - a and S21 - b can be executed, or they can be executed simultaneously.

[0143] Figure 5 is a schematic flow chart of a wireless communication method 300 according to an embodiment of the present application, as shown in FIG. Figure 5 As shown, the method 300 may include at least part of the following contents:

[0144] S310: The terminal device receives first information sent by the LMF entity, where the first information is used to indicate target PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information;

[0145] S320: The terminal device replaces the stored PRS configuration information with the target PRS configuration information, and performs PRS measurement using the target PRS configuration information.

[0146] That is, in the embodiment of the present application, when the terminal device receives new PRS configuration information, it overwrites the previously stored PRS configuration information. In this way, the terminal device does not need to store multiple sets of PRS configuration information, reducing the maintenance pressure of the PRS configuration information.

[0147] In an embodiment of the present application, after the terminal device or the LMF entity initiates an on-demand PRS request, the LMF entity may send first information to the terminal device to configure target PRS configuration information.

[0148] In some embodiments, before executing S210, the terminal device sends a first request message to the LMF entity, where the first request message is used to request on-demand PRS configuration. That is, before executing S210, the terminal device initiates an on-demand PRS request.

[0149] In some implementations, the first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy. That is, the terminal device can determine the PRS configuration information to be requested based on the current service type or positioning accuracy.

[0150] In some implementations, when the first request information includes the index of the PRS configuration information corresponding to the current service type or positioning accuracy, the network pre-configures multiple sets of PRS configuration information and their corresponding indexes (index) for the terminal device, so that the terminal device requests the corresponding index (index) corresponding to the corresponding PRS configuration from the network based on the current service type or positioning accuracy requirements.

[0151] In some implementations, the first request information may include specific parameters of the requested PRS configuration information, including but not limited to at least one of the following:

[0152] Changes to periodicity, such as increases or decreases in periodicity;

[0153] Time offset;

[0154] repetitions;

[0155] bandwidth;

[0156] comb patterns;

[0157] The amount of change in the transmit power or frequency of the PRS; for example, the amount of change in the transmit power or frequency of the PRS when a low RSRP is measured on the PRS;

[0158] The amount of beam change (increase / decrease), or the amount of change (increase / decrease) in the transmit beam of the TRP / cell;

[0159] Turn on / off certain PRS configurations of TRP / cell, or deactivate certain PRS configurations of TRP / cell; for example, when measuring high interference, turn on / off certain PRS configurations of TRP / cell, or deactivate certain PRS configurations of TRP / cell.

[0160] In some embodiments, the first request information includes target information, where the target information is used to indicate that the PRS configuration information should be updated. Accordingly, the LMF entity may update the PRS configuration information based on the target information.

[0161] In some embodiments, the target information includes but is not limited to one of the following:

[0162] Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

[0163] For example, the target information may be a cause value, that is, the cause value may be one of: improved positioning accuracy, reduced positioning accuracy, and no current positioning service.

[0164] In some embodiments, before executing S210, the LMF entity may initiate an on-demand PRS configuration request. That is, before executing S210, the LMF entity initiates an on-demand PRS request.

[0165] Therefore, in an embodiment of the present application, the terminal device automatically replaces the stored PRS configuration information with the target PRS configuration information, avoiding unnecessary signaling overhead caused by PRS configuration between the terminal device, base station or TRP, LMF entity, thereby optimizing the performance of the communication system.

[0166] Combined with the above Figures 3 to 5 , describes the method embodiment of the present application in detail, and the following is combined with Figures 6 to 11, the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0167] Figure 6 FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Figure 6 As shown, the terminal device 400 includes:

[0168] The communication unit 410 is configured to receive first information, where the first information is used to indicate target positioning reference signal (PRS) configuration information, or the first information is used to indicate an index of the target PRS configuration information;

[0169] The processing unit 420 is configured to perform PRS measurement using the target PRS configuration information during the running of the first timer.

[0170] In some embodiments, the communication unit 410 is further configured to send first request information, where the first request information is used to request on-demand PRS configuration.

[0171] In some embodiments, the first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

[0172] In some embodiments, the first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

[0173] In some embodiments, the target information includes one of the following:

[0174] Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

[0175] In some embodiments, the start or restart condition of the first timer includes at least one of the following:

[0176] The terminal device receives feedback information for the information for requesting on-demand PRS configuration;

[0177] The terminal device receives an auxiliary information transmission message for PRS configuration;

[0178] The terminal device sends information for requesting on-demand PRS configuration.

[0179] In some embodiments, the stop condition of the first timer includes at least one of the following:

[0180] The terminal device receives a message for instructing the terminal device to use default PRS configuration information to perform PRS measurement;

[0181] The terminal device receives an auxiliary information transmission message for PRS configuration.

[0182] In some embodiments, when the first timer times out, the terminal device performs at least one of the following:

[0183] Use the default PRS configuration information to perform PRS measurements;

[0184] Use the last stored PRS configuration information to perform PRS measurement;

[0185] Resending information for requesting on-demand PRS configuration;

[0186] Stop receiving or measuring PRS;

[0187] Stop positioning.

[0188] In some embodiments, the first timer is configured by a positioning management function LMF entity, and the first timer is jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

[0189] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0190] It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively to achieve Figure 3 For the sake of brevity, the corresponding processes of the terminal device in the method 200 are not repeated here.

[0191] Figure 7 FIG. 5 shows a schematic block diagram of an LMF entity 500 according to an embodiment of the present application. Figure 7 As shown, the LMF entity 500 includes:

[0192] The communication unit 510 is configured to send first information to a terminal device;

[0193] The first information is used to indicate target positioning reference signal PRS configuration information, or the first information is used to indicate an index of target PRS configuration information; the target PRS configuration information is used by the terminal device to perform PRS measurement during the operation of the first timer.

[0194] In some embodiments, the communication unit 510 is further configured to receive first request information sent by the terminal device, where the first request information is used to request on-demand PRS configuration.

[0195] In some embodiments, the first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

[0196] In some embodiments, the first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

[0197] In some embodiments, the target information includes one of the following:

[0198] Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

[0199] In some embodiments, the communication unit 510 is further configured to initiate an on-demand PRS configuration request.

[0200] In some embodiments, the start or restart condition of the first timer includes at least one of the following:

[0201] The terminal device receives feedback information for the information for requesting on-demand PRS configuration;

[0202] The terminal device receives an auxiliary information transmission message for PRS configuration;

[0203] The terminal device sends information for requesting on-demand PRS configuration.

[0204] In some embodiments, the stop condition of the first timer includes at least one of the following:

[0205] The terminal device receives a message for instructing the terminal device to use default PRS configuration information to perform PRS measurement;

[0206] The terminal device receives an auxiliary information transmission message for PRS configuration.

[0207] In some embodiments, the first timer is configured by a positioning management function LMF entity, and the first timer is jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

[0208] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0209] It should be understood that the LMF entity 500 according to the embodiment of the present application may correspond to the LMF entity in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the LMF entity 500 are respectively to achieve Figure 3 For the sake of brevity, the corresponding process of the LMF entity in the method 200 is not repeated here.

[0210] Figure 8 FIG. 6 shows a schematic block diagram of a terminal device 600 according to an embodiment of the present application. Figure 8 As shown, the terminal device 600 includes:

[0211] The communication unit 610 is configured to receive first information, where the first information is used to indicate target positioning reference signal (PRS) configuration information, or the first information is used to indicate an index of the target PRS configuration information;

[0212] The processing unit 620 is configured to replace the stored PRS configuration information with the target PRS configuration information, and perform PRS measurement using the target PRS configuration information.

[0213] In some embodiments, the communication unit 610 is further configured to send first request information, where the first request information is used to request on-demand PRS configuration.

[0214] In some embodiments, the first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

[0215] In some embodiments, the first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

[0216] In some embodiments, the target information includes one of the following:

[0217] Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

[0218] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0219] It should be understood that the terminal device 600 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and / or functions of each unit in the terminal device 600 are respectively to achieve Figure 5 For the sake of brevity, the corresponding processes of the terminal device in the method 300 are not repeated here.

[0220] Figure 9 This is a schematic structural diagram of a communication device 700 provided in an embodiment of the present application. Figure 9 The communication device 700 shown includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0221] In some embodiments, as Figure 9 As shown, the communication device 700 may further include a memory 720. The processor 710 may call and execute a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0222] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0223] In some embodiments, as Figure 9 As shown, the communication device 700 may further include a transceiver 730 , and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, the transceiver 730 may send information or data to other devices, or receive information or data sent by other devices.

[0224] The transceiver 730 may include a transmitter and a receiver. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

[0225] In some embodiments, the communication device 700 may specifically be the LMF entity of the embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the LMF entity in the various methods of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0226] In some embodiments, the communication device 700 may specifically be a terminal device of an embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0227] Figure 10 It is a schematic structural diagram of the device of an embodiment of the present application. Figure 10 The device 800 shown includes a processor 810, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0228] In some embodiments, as Figure 10 As shown, the apparatus 800 may further include a memory 820. The processor 810 may call and execute a computer program from the memory 820 to implement the method in the embodiment of the present application.

[0229] The memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .

[0230] In some embodiments, the apparatus 800 may further include an input interface 830. The processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0231] In some embodiments, the apparatus 800 may further include an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0232] In some embodiments, the device can be applied to the LMF entity in the embodiments of the present application, and the device can implement the corresponding processes implemented by the LMF entity in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0233] In some embodiments, the apparatus can be applied to the terminal device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the terminal device in the various methods in the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0234] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, such as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0235] Figure 11 is a schematic block diagram of a communication system 900 provided in an embodiment of the present application. Figure 11 As shown, the communication system 900 includes a terminal device 910 and a LMF entity 920.

[0236] Among them, the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the LMF entity 920 can be used to implement the corresponding functions implemented by the LMF entity in the above method. For the sake of brevity, they will not be repeated here.

[0237] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0238] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0239] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0240] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0241] In some embodiments, the computer-readable storage medium can be applied to the LMF entity in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the LMF entity in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0242] In some embodiments, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0243] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0244] In some embodiments, the computer program product can be applied to the LMF entity in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the LMF entity in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0245] In some embodiments, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0246] The embodiment of the present application also provides a computer program.

[0247] In some embodiments, the computer program can be applied to the LMF entity in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the LMF entity in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0248] In some embodiments, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0249] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0250] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0251] 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.

[0252] 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.

[0253] 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.

[0254] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0255] 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 the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device receives first information, where the first information is used to indicate target positioning reference signal PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information; The terminal device performs PRS measurement using the target PRS configuration information during the running of the first timer; When the first timer times out, the terminal device performs at least one of the following: performing PRS measurement using default PRS configuration information, performing PRS measurement using previously stored PRS configuration information, resending information for requesting on-demand PRS configuration, stopping receiving or measuring PRS, and stopping positioning; Among them, the start or restart conditions of the first timer include at least one of the following: the terminal device receives feedback information for information used to request on-demand PRS configuration, the terminal device receives an auxiliary information transmission message for PRS configuration, and the terminal device sends information for requesting on-demand PRS configuration; the stop conditions of the first timer include at least one of the following: the terminal device receives a message for instructing the terminal device to use default PRS configuration information for PRS measurement, and the terminal device receives an auxiliary information transmission message for PRS configuration; the first timer is configured for a positioning management function LMF entity, and the start or restart, stop of the first timer, and the behavior triggered after the first timer times out are jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

2. The method according to claim 1, wherein The method further comprises: The terminal device sends first request information, where the first request information is used to request on-demand PRS configuration.

3. The method according to claim 2, wherein The first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

4. The method according to claim 2 or 3, wherein: The first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

5. The method according to claim 4, wherein The target information includes one of the following: Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

6. A wireless communication method, characterized in that: include: The positioning management function LMF entity sends first information to the terminal device, where the first information is used to indicate the target positioning reference signal PRS configuration information, or the first information is used to indicate the index of the target PRS configuration information; the target PRS configuration information is used by the terminal device to perform PRS measurement during the operation of the first timer; when the first timer expires, the terminal device performs at least one of the following: using default PRS configuration information for PRS measurement, using the last stored PRS configuration information for PRS measurement, resending information for requesting on-demand PRS configuration, stopping receiving or measuring PRS, and stopping positioning; Among them, the start or restart conditions of the first timer include at least one of the following: the terminal device receives feedback information for information used to request on-demand PRS configuration, the terminal device receives an auxiliary information transmission message for PRS configuration, and the terminal device sends information for requesting on-demand PRS configuration; the stop conditions of the first timer include at least one of the following: the terminal device receives a message for instructing the terminal device to use default PRS configuration information for PRS measurement, and the terminal device receives an auxiliary information transmission message for PRS configuration; the first timer is configured for a positioning management function LMF entity, and the start or restart, stop of the first timer, and the behavior triggered after the first timer times out are jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

7. The method according to claim 6, wherein The method further comprises: The LMF entity receives first request information sent by the terminal device, where the first request information is used to request on-demand PRS configuration.

8. The method according to claim 7, wherein The first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

9. The method according to claim 7 or 8, wherein The first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

10. The method according to claim 9, wherein The target information includes one of the following: Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

11. The method according to claim 6, wherein The method further comprises: The LMF entity initiates an on-demand PRS configuration request.

12. A wireless communication method, characterized in that: include: The terminal device receives first information, where the first information is used to indicate target positioning reference signal PRS configuration information, or the first information is used to indicate an index of the target PRS configuration information; The terminal device replaces the stored PRS configuration information with the target PRS configuration information; The terminal device performs PRS measurement using the target PRS configuration information during the running of the first timer; When the first timer times out, the terminal device performs at least one of the following: performing PRS measurement using default PRS configuration information, performing PRS measurement using the last stored PRS configuration information, resending information for requesting on-demand PRS configuration, stopping receiving or measuring PRS, and stopping positioning; Among them, the start or restart conditions of the first timer include at least one of the following: the terminal device receives feedback information for information used to request on-demand PRS configuration, the terminal device receives an auxiliary information transmission message for PRS configuration, and the terminal device sends information for requesting on-demand PRS configuration; the stop conditions of the first timer include at least one of the following: the terminal device receives a message for instructing the terminal device to use default PRS configuration information for PRS measurement, and the terminal device receives an auxiliary information transmission message for PRS configuration; the first timer is configured for a positioning management function LMF entity, and the start or restart, stop of the first timer, and the behavior triggered after the first timer times out are jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

13. The method according to claim 12, wherein: The method further comprises: The terminal device sends first request information, where the first request information is used to request on-demand PRS configuration.

14. The method according to claim 13, wherein The first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

15. The method according to claim 13 or 14, characterized in that The first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

16. The method according to claim 15, wherein The target information includes one of the following: Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

17. A terminal device, characterized in that: include: A communication unit, configured to receive first information, wherein the first information is used to indicate target positioning reference signal (PRS) configuration information, or the first information is used to indicate an index of the target PRS configuration information; a processing unit, configured to perform PRS measurement using the target PRS configuration information during operation of the first timer; The processing unit is further configured to, when the first timer times out, perform at least one of the following: perform PRS measurement using default PRS configuration information, perform PRS measurement using previously stored PRS configuration information, resend information for requesting on-demand PRS configuration, stop receiving or measuring PRS, and stop positioning: Among them, the start or restart conditions of the first timer include at least one of the following: the terminal device receives feedback information for information used to request on-demand PRS configuration, the terminal device receives an auxiliary information transmission message for PRS configuration, and the terminal device sends information for requesting on-demand PRS configuration; the stop conditions of the first timer include at least one of the following: the terminal device receives a message for instructing the terminal device to use default PRS configuration information for PRS measurement, and the terminal device receives an auxiliary information transmission message for PRS configuration; the first timer is configured for a positioning management function LMF entity, and the start or restart, stop of the first timer, and the behavior triggered after the first timer times out are jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

18. The terminal device according to claim 17, wherein: The communication unit is further configured to send first request information, where the first request information is used to request on-demand PRS configuration.

19. The terminal device according to claim 18, wherein: The first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

20. The terminal device according to claim 18 or 19, characterized in that: The first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

21. The terminal device according to claim 20, wherein: The target information includes one of the following: Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

22. A LMF entity, characterized in that: include: A communication unit, configured to send first information to a terminal device, where the first information is used to indicate target positioning reference signal PRS configuration information, or the first information is used to indicate an index of target PRS configuration information; the target PRS configuration information is used by the terminal device to perform PRS measurement during the operation of a first timer; when the first timer expires, the terminal device performs at least one of the following: performing PRS measurement using default PRS configuration information, performing PRS measurement using the last stored PRS configuration information, resending information for requesting on-demand PRS configuration, stopping receiving or measuring PRS, and stopping positioning; Among them, the start or restart conditions of the first timer include at least one of the following: the terminal device receives feedback information for information used to request on-demand PRS configuration, the terminal device receives an auxiliary information transmission message for PRS configuration, and the terminal device sends information for requesting on-demand PRS configuration; the stop conditions of the first timer include at least one of the following: the terminal device receives a message for instructing the terminal device to use default PRS configuration information for PRS measurement, and the terminal device receives an auxiliary information transmission message for PRS configuration; the first timer is configured for a positioning management function LMF entity, and the start or restart, stop of the first timer, and the behavior triggered after the first timer times out are jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

23. The LMF entity according to claim 22, characterized in that The communication unit is further configured to receive first request information sent by the terminal device, where the first request information is used to request on-demand PRS configuration.

24. The LMF entity according to claim 23, characterized in that The first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

25. The LMF entity according to claim 23 or 24, characterized in that The first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

26. The LMF entity according to claim 25, characterized in that The target information includes one of the following: Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

27. The LMF entity according to claim 23, wherein: The communication unit is further configured to initiate an on-demand PRS configuration request.

28. A terminal device, characterized in that: include: A communication unit, configured to receive first information, wherein the first information is used to indicate target positioning reference signal (PRS) configuration information, or the first information is used to indicate an index of the target PRS configuration information; a processing unit, configured to replace the stored PRS configuration information with the target PRS configuration information; The processing unit is further configured to perform PRS measurement using the target PRS configuration information during operation of the first timer; The processing unit is further configured to, when the first timer times out, perform at least one of the following: perform PRS measurement using default PRS configuration information, perform PRS measurement using previously stored PRS configuration information, resend information for requesting on-demand PRS configuration, stop receiving or measuring PRS, and stop positioning: Among them, the start or restart conditions of the first timer include at least one of the following: the terminal device receives feedback information for information used to request on-demand PRS configuration, the terminal device receives an auxiliary information transmission message for PRS configuration, and the terminal device sends information for requesting on-demand PRS configuration; the stop conditions of the first timer include at least one of the following: the terminal device receives a message for instructing the terminal device to use default PRS configuration information for PRS measurement, and the terminal device receives an auxiliary information transmission message for PRS configuration; the first timer is configured for a positioning management function LMF entity, and the start or restart, stop of the first timer, and the behavior triggered after the first timer times out are jointly maintained by the terminal device, the LMF entity, the access network device or the transmission receiving point TRP.

29. The terminal device according to claim 28, characterized in that The communication unit is further configured to send first request information, where the first request information is used to request on-demand PRS configuration.

30. The terminal device according to claim 29, wherein: The first request information includes PRS configuration information corresponding to the current service type or positioning accuracy, or the first request information includes an index of the PRS configuration information corresponding to the current service type or positioning accuracy.

31. The terminal device according to claim 29 or 30, characterized in that: The first request information includes target information, where the target information is used to indicate updating of PRS configuration information.

32. The terminal device according to claim 31, wherein: The target information includes one of the following: Positioning accuracy improved, positioning accuracy decreased, and there is currently no positioning service.

33. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, and to execute the method according to any one of claims 1 to 5, or to execute the method according to any one of claims 12 to 16.

34. A LMF entity, characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 6 to 11.

35. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 5, or executes the method according to any one of claims 12 to 16.

36. A chip, characterized in that: The device comprises: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 6 to 11.

37. A computer-readable storage medium, characterized in that Used to store a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 5, or to execute the method according to any one of claims 12 to 16.

38. A computer-readable storage medium, characterized in that Used to store a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 6 to 11.

39. A computer program product, characterized in that The method comprises computer program instructions, wherein the computer program instructions enable a computer to execute the method according to any one of claims 1 to 5 or the method according to any one of claims 12 to 16.

40. A computer program product, characterized in that The method comprises computer program instructions for causing a computer to execute the method according to any one of claims 6 to 11.

Images