WO2021203366A1

WO2021203366A1 - Location determination method and device

Info

Publication number: WO2021203366A1
Application number: PCT/CN2020/083990
Authority: WO
Inventors: 尤心
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-10-14
Also published as: CN115176501A

Abstract

Provided in the embodiments of the present application are a location determination method and device. The method comprises: a terminal device receives first information from a first network device, the first information comprising SRS configuration information and/or PRS configuration information, and the first information being carried in a measurement configuration message or a handover command; and then second information is sent according to the first information, the second information being used to determine location information of the terminal device. The present application achieves the determination of location information of a terminal device on the basis of positioning configuration information during cell handover, thereby avoiding the problem in which an uplink clock is not synchronized due to a difference in the location information of the terminal device as obtained by the terminal device and a network device during handover without a random access process, and optimizing the performance of the terminal device.

Description

Position determining method and device

Technical field

This application relates to the field of wireless communication technology, and in particular to a method and device for determining a position.

Background technique

In the Long Term Evolution (LTE) system and the 5th Generation cellular mobile communication system (5th Generation, hereinafter referred to as 5G, also known as New Radio, or NR for short), there is a definition that does not require A handover mode that undergoes a random access process (Random Access Channel, RACH), that is, a random access process (Random Access Channel-less, RACH-less) handover, and there is no User Equipment (UE) in the RACH-less handover The process of sending a random access preamble (Preamble) and a network device sending a random access response (Random Access Response, RAR), knowing the UE's timing advance (TA) to the target cell through other methods, shortening the cell handover time.

In a non-terrestrial communication network (Non-Terrestrial Network, NTN) system, the position of the satellite from the ground is very high, and the transmission delay is relatively large. In order to shorten the cell handover time, the NTN system can use RACH-less, that is, when the UE knows that the target cell is configured with TA or its location information, the UE can directly send uplink data to the target cell. However, in this process, the location information of the UE acquired by the UE and the network device may be different, which causes the uplink clock to be out of synchronization, so that the target cell cannot receive the uplink data sent by the UE.

Summary of the invention

The embodiments of the present application provide a location determination method and device, which can avoid the situation that the uplink clock is not synchronized due to different location information obtained by the terminal device and the network device of the terminal device.

In the first aspect, an embodiment of the present application provides a method for determining a position, the method including:

The terminal device receives first information from the first network device, where the first information includes channel sounding reference signal SRS configuration information and/or location reference signal PRS configuration information, and the first information is carried in a measurement configuration message or a handover command ；

The terminal device sends second information according to the first information, and the second information is used to determine location information of the terminal device.

In the second aspect, an embodiment of the present application provides a method for determining a position, the method including:

The first network device sends first information to the terminal device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

The first network device receives second information from the terminal device, where the second information is used to determine location information of the terminal device.

In a third aspect, an embodiment of the present application provides a location determining device, which includes:

The transceiver unit is used for the terminal device to receive first information from the first network device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command; The terminal device sends second information according to the first information, and the second information is used to determine location information of the terminal device.

In a fourth aspect, an embodiment of the present application provides a location determining device, which includes:

The transceiver unit is configured to send first information to the terminal device by the first network device, the first information including SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command; The first network device receives second information from the terminal device, where the second information is used to determine location information of the terminal device.

In a fifth aspect, an embodiment of the present application provides a terminal device, the terminal device includes a processor, a memory, a transceiver, and one or more programs, the one or more programs are stored in the memory, and It is configured to be executed by the processor, and the program includes instructions for executing part or all of the steps described in the method described in the first aspect.

In a sixth aspect, an embodiment of the present application provides a network device, the network device includes a processor, a memory, a transceiver, and one or more programs, the one or more programs are stored in the memory, and It is configured to be executed by the processor, and the program includes instructions for executing part or all of the steps described in the method described in the second aspect above.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium that stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the above-mentioned first aspect Some or all of the steps described in the method.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium that stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the above-mentioned second aspect Some or all of the steps described in the method.

In a ninth aspect, an embodiment of the present application provides a computer program product, wherein the above-mentioned computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the above-mentioned computer program is operable to cause a computer to execute as implemented in this application Examples include part or all of the steps described in the method described in the first aspect. The computer program product may be a software installation package.

In a tenth aspect, an embodiment of the present application provides a computer program product, wherein the above-mentioned computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the above-mentioned computer program is operable to make a computer execute as implemented in this application. Examples include part or all of the steps described in the method described in the second aspect. The computer program product may be a software installation package.

It can be seen that in this embodiment of the application, the terminal device receives the first information from the first network device, the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in the measurement configuration message Or in the handover command, second information is sent according to the first information, and the second information is used to determine the location information of the terminal device, so that the location information of the terminal device can be determined based on the positioning configuration information, thereby avoiding In the handover without random access process, because the terminal equipment and the network equipment obtain different location information of the terminal equipment, the uplink clock is not synchronized, and the performance of the terminal equipment is optimized.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

2A is a schematic flowchart of a random access process provided by an embodiment of the present application;

FIG. 2B is a schematic flowchart of a non-random access procedure provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a location determination method provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a location determination method provided by an embodiment of the present application;

FIG. 5 is a schematic flowchart of a location determination method provided by an embodiment of the present application;

FIG. 6 is a schematic flowchart of a location determination method provided by an embodiment of the present application;

FIG. 7 is a schematic flowchart of a location determination method provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a location determining device provided by an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a computer device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

In order to better understand the solutions of the embodiments of the present application, the following first introduces related terms and concepts that may be involved in the embodiments of the present application.

1) A terminal device is a device with wireless communication capabilities, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air ( For example, airplanes, balloons, satellites, etc.). The terminal device can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and an industrial control (industrial control) terminal device. Wireless terminal in control), wireless terminal in self-driving (self-driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in smart home (smart home) Terminal and so on. The terminal device may also be a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, a computer device, or other processing device connected to a wireless modem. In different networks, terminal equipment can be called different names, such as: terminal equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication Device, user agent or user device, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), Terminal equipment in 5G network or future evolution network, etc.

2) A network device is a device deployed on a wireless access network to provide wireless communication functions. For example, the network device may be a radio access network (Radio Access Network, RAN) device on the access network side of a cellular network. The so-called RAN device is a device that connects terminal devices to the wireless network, including but not limited to: Evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver) Station, BTS), home base station (for example, Home evolved Node B, or Home Node B, HNB), base band unit (BBU), management entity (Mobility Management Entity, MME); for another example, network equipment can also be It is a node device in a wireless local area network (Wireless Local Area Network, WLAN), such as an access controller (AC), a gateway, or a WIFI access point (Access Point, AP); for another example, the network device can also be The transmission node or receiving point (transmission reception point, TRP or TP) in the NR system, etc.

3) Location management function (LMF): It is used to select the corresponding positioning method according to the positioning accuracy requirements, time delay requirements, etc., and select the corresponding communication protocol to complete the interaction of the information required for positioning. The LMF is also used to provide other information required for positioning services, or positioning strategies.

4) Positioning configuration information: The main idea of positioning technology is to use the positioning principle similar to the Global Navigation Satellite System (GNSS) to measure the positioning configuration information of two or more network devices or terminal devices The reference signal time difference (Reference Signal Time Difference, RSTD) or the departure angle or the arrival angle, the location of the terminal device can be calculated when the location of each network device is known.

5) Handover process: When a terminal that is using network services moves from one serving cell to another, or due to wireless transmission traffic load adjustment, activation operation and maintenance, equipment failure, etc., in order to ensure the continuity of communication and service Quality, the system must transfer the communication link between the terminal and the original serving cell to the new serving cell, that is, perform the handover process.

Taking the Xn interface switching process as an example, the entire switching process is divided into the following three stages:

(1) Handover preparation: including measurement control and reporting, handover request and confirmation. The handover confirmation message contains the handover command generated by the target serving cell, and the source base station does not allow any modification to the handover command generated by the target base station, and directly forwards the handover command to the terminal.

(2) Handover execution: The terminal immediately executes the handover process after receiving the handover command, that is, the terminal disconnects the source base station and connects to the target base station (such as performing random access, sending an RRC handover complete message to the target base station, etc.); SN state transfer, Data forwarding.

(3) Handover is complete: The target base station executes Path Switch with the access and mobility management function AMF and the user plane function UPF to release the UE context of the source base station.

6) Measurement configuration (measurement configuration) message: used for mobility measurement in the connected state. In the RRC connected state, the source base station sends a measurement configuration message to the terminal device through dedicated signaling. The measurement configuration message includes the object to be measured by the terminal device, the cell list, the reporting method, the measurement identifier, and event parameters.

7) Handover command: Handover command (Radio Resource Control (RRC) connection reconfiguration message carrying mobility control information) is generated by the target base station and transparently transmitted to the UE through the source base station. The source base station performs necessary encryption and integrity protection on this message. When the terminal device receives the message, it will use the relevant parameters in the message to initiate the handover process. The terminal device does not need to wait for the Hybrid Automatic Repeat request (HARQ) or Automatic Repeat request (ARQ) response sent by the lower layer to the source base station to initiate the handover process.

8) TA: A parameter used to indicate the time deviation of the data sent by the terminal device when the network device receives the data, and its physical meaning refers to the round-trip delay between the terminal device and the network device.

In the first part, the communication system architecture and background of the technical solution disclosed in this application are introduced as follows.

Exemplarily, please refer to FIG. 1, which shows a schematic diagram of a communication system architecture provided by an embodiment of the present application. The satellite communication system includes network equipment, terminal equipment and location management functions. As shown in Figure 1, network devices, terminal devices, and location management functions can communicate with each other. The satellite communication system can be a system that uses 5G mobile communication technology, an evolved Long Term Evolution (eLTE) system, a communication system that integrates multiple communication technologies (for example, a communication system that integrates LTE technology and NR technology), or The subsequent evolution of the communication system. In the coverage area of the network device, the terminal device may be a geosynchronous orbit satellite or a low-earth orbit satellite, which is not limited in the embodiment of the present application. The network device includes a first network device, a second network device, and at least one adjacent network device of the first network device. In some embodiments, in order to facilitate the distinction between the first network device and the second network device, the first network device is used as the base station to which the current terminal device is connected, and is the source base station; the second network device is the terminal device that needs to be switched The base station is the target base station. The first network device and/or the second network device can communicate wirelessly with the terminal device via one or more antennas. In practical applications, the connection between the various devices mentioned above can be a wireless connection, in order to conveniently and intuitively indicate the connection between the various devices. Figure 1 shows the connection relationship with solid lines.

The communication link between the network device and the terminal device may include: Down Link (DL) transmission from the network device to the terminal device, and/or Up Link (Up Link, from the terminal device to the network device) UP) Transmission. Downlink transmission may also be referred to as forward link transmission, and uplink transmission may also be referred to as reverse link transmission.

It should be noted that the form and quantity of the network equipment, terminal equipment, and LMF shown in FIG. 1 are only for example, and do not constitute a limitation to the embodiment of the present application.

Currently, 3GPP is studying non-terrestrial communication network (Non Terrestrial Network, NTN) technology. NTN generally uses satellite communication to provide communication services to ground users. Compared with terrestrial cellular network communication, satellite communication has many unique advantages. First of all, satellite communication is not limited by the user's area. For example, general terrestrial communication cannot cover areas where communication equipment cannot be installed such as oceans, mountains, and deserts, or areas that cannot be covered by communication due to sparse population, but because a satellite can cover larger areas. On the ground, and satellites can orbit the earth, so every corner of the earth can be covered by satellite communications. Secondly, satellite communications can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, which is conducive to promoting the development of these areas. Thirdly, the satellite communication distance is long, and the communication cost has not increased significantly with the increase of the communication distance; finally, the stability of satellite communication is high, and it is not restricted by natural disasters.

Communication satellites are divided into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, and highly elliptical orbits. (High Elliptical Orbit, HEO) satellites, etc. At this stage, the main research is LEO and GEO.

Among them, the altitude range of low-orbit satellites is 500km-1500km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between users is generally less than 20ms. The maximum satellite viewing time is 20 minutes. The signal propagation distance is short, the link loss is small, and the requirement for the transmission power of the user terminal is not high.

A geosynchronous orbit satellite with an orbital height of 35786km and a rotation period of 24 hours around the earth. The signal propagation delay of single-hop communication between users is generally 250ms. In order to ensure satellite coverage and increase the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover dozens to hundreds of kilometers in diameter. Ground area.

In LTE and 5G NR, the handover of terminal equipment between the source base station and the target base station usually undergoes the RACH process, as shown in Figure 2A. That is, after the terminal device receives the handover command from the source base station, it needs to send the preamble code Preamble to the destination base station, and the destination base station replies to the terminal device with the RAR. The RAR contains the uplink TA of the terminal device to the destination base station. The time when the signal arrives at the base station is basically aligned. One of the functions of the RACH process is: the terminal device obtains the uplink timing advance for the target base station. Among them, LTE also defines a handover method that does not need to go through the RACH process, that is, RACH-less handover, as shown in Figure 2B. In the RACH-less handover, there is no process for the terminal device to send the Preamble and the base station to reply to the RAR. The TA from the terminal device to the target base station is learned by other methods, which shortens the handover time. In the NTN system, the transmission delay is relatively large due to the high position of the satellite from the ground. Therefore, in order to shorten the cell handover time, RACH-less can be used in the NTN system, that is, the terminal device can directly generate uplink data to the target base station when the network device is known to be configured with TA or its location information. However, in this process, the location information of the terminal device obtained by the terminal device and the network device may be different, which may cause the uplink clock to be out of synchronization, so that the network device cannot receive the uplink data sent by the terminal device, which affects user experience.

In response to the above problems, this application proposes a location determination method and device. A terminal device receives first information from a first network device. The first information is used for positioning and measurement of the terminal device, and then based on the first information The second information is sent, and the second information is used to determine the location information of the terminal device, so as to determine the location information of the terminal device based on the positioning configuration information, thereby avoiding the terminal device's location information during the handover without random access process. It is different from the location information of the terminal device obtained by the network device, which causes the uplink clock asynchronous problem, and optimizes the performance of the terminal device.

In the second part, the scope of protection of the rights disclosed in the embodiments of this application is introduced as follows.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a location confirmation method provided by an embodiment of the application. The method can be applied to the communication system shown in FIG. 1. As shown in FIG. 3, the method includes the following steps:

S310. The first network device sends the first information to the terminal device.

The first information includes channel sounding reference signal (Sounding Reference Signal, SRS) configuration information and/or positioning reference signal (Position Reference Signal, PRS) configuration information. The terminal device and/or the network device may obtain the location information of the terminal device based on the measurement result of the SRS configuration information and/or the PRS configuration information and the location estimation algorithm.

In the embodiment of the present application, the first information may be carried in a measurement configuration message or a handover command. When the terminal equipment performs cell handover without random access process, in order to synchronize the uplink clock, the terminal equipment and the target base station can obtain the position information of the terminal equipment before the terminal equipment performs the cell handover, so as to align the uplink TA . Therefore, during the cell handover process, the first network device can carry the first information when sending the measurement configuration message or handover command, so that the terminal device can determine the positioning configuration information, and then determine the location of the terminal device according to the positioning configuration information information.

Optionally, the first information may further include at least one of the following: a list of cells to be measured, Transmit Receive Point (TRP) information, network device collection information, beam information, spatial direction information, and coordinate information.

Wherein, the network device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device is the terminal The network device corresponding to the current serving cell of the device, and the second network device is the network device corresponding to the target cell to which the terminal device is about to handover. The TRP information may also include one or more TRP information, and the list of cells to be measured may include one or more cells to be measured.

In some examples, when the first information includes network device collection information, the network device in the network device collection information may include the base station corresponding to the cell to be measured in the cell list to be measured and/or the TRP in the TRP information. In some examples, when the first information includes TRP information, the TRP information may include the base station and/or the network device in the network device collection information corresponding to the cell to be measured in the cell list to be measured. In some examples, when the first information includes a list of cells to be measured, the list of cells to be measured may include TRP in the TRP information and/or network devices in the network device collection information. It should be noted that in some examples, the network device in the network device collection information may be called TRP, or may be called the base station corresponding to the cell to be measured. Of course, the embodiment of the present application is not limited to other names. In some examples, in order to facilitate the distinction between the first network device and the second network device, the first network device is used as the base station to which the current terminal device is connected, and is the source base station; the second network device is the terminal device that is about to The switched base station is the target base station.

It should be noted that the number of base stations that the second network device may include in different stages of the handover process is different. For example, when the first network device has not determined the target base station, that is, before the first network device makes a handover decision, The second network device may include one or more candidate base stations, and the candidate base stations include the target base station; after the first network device has made a handover decision and determined the target base station, the second network device may include Target base station.

In a possible embodiment of the present application, before the terminal device performs cell handover, the first network device may send the first information to the terminal device through other signaling. For example, the first network device is preparing for handover. In the stage, the first information is carried in Downlink Control Information (DCI) and sent to the terminal device. The signaling may include RRC signaling, (Medium Access Control (MAC) Control Element, CE), DCI, and newly defined signaling, which is not limited in the embodiment of the application. .

Optionally, the first information may be configured by the first network device, the second network device, or the LMF. When the first information is the configuration of the first network device, the first network device may carry the first information in the measurement configuration message or handover command, or send it to the terminal device through signaling; When the first information is the second network device or LMF configuration, the first network device may receive the first information from the second network device and/or LMF, and use the first information The method of transparent transmission (without any modification), carried in the measurement configuration message or handover command, or sent to the terminal device through signaling; when the first information is the LMF configuration, the first information can be located through LTE The protocol (LTE Positioning Protocol, LPP) protocol data unit (Protocol Data Unit, PDU) is sent to the terminal device, which is not limited in this embodiment of the application.

Further, when the LMF configures the first information, the network device in the network device set information may report the recommended first information to the LMF before the LMF configures the first information. Optionally, when the first network device or the second network device configures the first information, the first network device or the second network device may report the first information to the LMF after configuring the first information .

S320. The terminal device receives the first information from the network device.

S330. The terminal device sends second information according to the first information.

Wherein, the second information includes SRS and/or PRS measurement results, and is used to determine the location information of the terminal device. After the terminal device receives the first information, the terminal device may determine the configuration information for positioning according to the SRS configuration information and/or PRS configuration information contained in the first information. For example, when the first information contains SRS configuration information, The terminal device determines the SRS configuration information as the configuration information used for positioning; when the first information includes the PRS configuration information, the terminal device determines the PRS configuration information as the configuration information used for positioning. The terminal device sends second information according to the positioning configuration information. The SRS configuration information may include but is not limited to: SRS resource set and SRS transmission period, and the PRS configuration information may include, but is not limited to: PRS resource set and PRS transmission period .

Further, the SRS configuration information may also include SRS transmission activation information. In some examples, the SRS transmission activation information may also be sent to the terminal device through separate signaling. The PRS configuration information may also include PRS transmission activation information. In some examples, the PRS sending activation information may also be sent through separate signaling. The separate signaling may include RRC signaling, MAC CE, DCI, and newly defined signaling, which is not limited in the embodiment of the present application.

It should be noted that when the first information includes SRS configuration information and PRS configuration information, the terminal device can randomly determine the configuration information used for positioning, or it can be determined according to certain rules. For example, the terminal device can be at a moving speed. PRS configuration information is used when it is greater than the threshold, and SRS configuration information is used when it is less than or equal to the threshold. The embodiment of the application does not limit this.

In this embodiment of the present application, if the first information includes SRS configuration information and network device collection information, and the second information includes SRS, sending the second information according to the first information by the terminal device may include: The terminal device sends the SRS to the network device in the network device set information according to the first information, where the SRS is used to determine the location information of the terminal device. Wherein, after receiving the SRS, the first network device measures the SRS to obtain an SRS measurement result, and sends the SRS measurement result to the LMF.

Specifically, the terminal device may periodically send the SRS to the network device in the network device set information according to the SRS transmission period. The network device in the network device set information that receives the SRS measures the SRS, obtains the SRS measurement result, and sends the measured SRS measurement result to the LMF. The LMF can determine the location information of the terminal device through a location estimation algorithm based on the SRS measurement result of the network device and the location information of the network device stored by the LMF.

Further, when the first information further includes beam information and/or spatial direction information, the terminal device may send the SRS to the network device in the network device set information in the beam direction of the SRS resource concentration.

In another embodiment of the present application, after receiving the SRS, the first network device measures the SRS to obtain the SRS measurement result. At the same time, the first network device may also receive data from the second network device and the first network device. SRS measurement result of at least one adjacent network device of the network device.

Specifically, after the network device in the network device set information receives the SRS, it measures the SRS to obtain the respective SRS measurement results. Wherein, the second network device and/or at least one adjacent network device of the first network device may send the measured SRS measurement result to the first network device. The first network device may determine the location of the terminal device through a location estimation method based on the SRS measurement result and its location information from the second network device and/or the adjacent network device, as well as its own SRS measurement result and location information information. In some examples, when the first information further includes TRP information and/or the cell to be measured, the first network device may also receive the SRS measurement result from the TRP and/or the base station corresponding to the cell to be measured, and determine according to the SRS measurement result The location information of the terminal device.

Optionally, when the first information includes TRP information and/or a list of cells to be measured, the terminal device may also send a message to a transceiver point (Transmit Receive Point, TRP) and/or a cell corresponding to the cell to be measured according to the first information. The base station sends SRS. The TRP and/or the base station corresponding to the cell to be measured performs measurement after receiving the SRS to obtain the SRS measurement result, and then sends the SRS measurement result to the LMF.

In another embodiment of the present application, if the first information includes PRS configuration information and network device collection information, and the second information includes PRS measurement results, the terminal device sending the second information according to the first information includes : The terminal device monitors the PRS from the network device in the network device set information according to the first information, and sends the PRS measurement result to the network device and/or LMF in the network device set information, so The PRS measurement result is used to determine the location information.

Wherein, the terminal device periodically monitors the PRS from the network device in the network device set information according to the PRS transmission period. After listening to the PRS, the terminal device measures the PRS that sends the downlink, that is, measures the PRS on the communication link from the network device that sends the PRS to the terminal device, and obtains the PRS measurement result of the downlink. After all the monitored PRSs are received, all measured PRS measurement results are sent to the network device and/or LMF in the network device set information.

Further, when the first information further includes beam information and/or spatial direction information, the terminal device may monitor the PRS in the beam direction of the PRS resource set. The terminal device may also use the resources in the PRS resource concentration and/or the beam direction in the beam information to send the PRS measurement result.

Wherein, the network device in the network device set information may send a PRS to the terminal device, that is, at least one of the first network device, the second network device, and the at least one adjacent network device of the first network device to the terminal device The terminal device sends the PRS. After the LMF configures the first information or receives the reported first information, if the first information includes PRS configuration information, the LMF may instruct the network device in the network device set information to send the PRS to the terminal device . In some examples, when the first information includes TRP information and/or a list of cells to be measured, the base station corresponding to the TPR and/or the cell to be measured may also send a PRS to the terminal device according to the instruction of the LMF, After the terminal device monitors the TPR and/or the PRS of the base station corresponding to the cell to be measured, it can send the PRS measurement result of the PRS to the base station corresponding to the TPR and/or the cell to be measured.

Optionally, the method further includes: the terminal device determines the location information terminal device according to the PRS. When the first network device receives the PRS measurement result, the first network device determines the location information according to the PRS measurement result.

Wherein, the terminal device determining the location information according to the PRS includes: the terminal device measures the PRS of the network device set information, obtains the PRS measurement result, and determines the location information according to the PRS measurement result .

Specifically, when the first information also includes coordinate information, after the terminal device measures all monitored PRS, it can combine all the PRS measurement results with the coordinate information of the network device in the network device collection information, and determine the terminal device through the location estimation algorithm Location information. Similarly, after the network device in the network device collection information receives the PRS measurement result, it can combine the PRS measurement result with its own location and/or the known location of other network devices to determine the terminal device Location information. In some examples, when the first information further includes TRP information and/or a list of cells to be measured, the PRS measurement results can also be combined with TRP and/or the coordinate information of the base station corresponding to the cell to be measured to determine the location information of the terminal equipment, TRP And/or the base station corresponding to the cell to be measured combines the PRS measurement result with its own location and/or other known TRPs and/or the location of the base station corresponding to the cell to be measured to determine the location information of the terminal device.

S340. The first network device receives second information from the terminal device.

In the embodiment of the present application, the method further includes: the terminal device receives the location information from at least one of the first network device, the LMF, and the second network device; The location information determines the TA. The first network device receives the location information from the LMF and/or the second network device; the first network device determines the TA according to the location information.

When the first information contains SRS configuration information, after the LMF determines the location information according to the SRS measurement result sent by the network device in the network device set information, the LMF may send the location information to the terminal device and/or The network device in the network device collection information. After receiving the location information, the network device in the network device collection information may also send the location information to the terminal device and/or other network devices in the network device collection information. For example, the LMF may send the location information of the terminal device to at least one of the terminal device, the first network device, and the second network device. When the first network device receives the location information of the terminal device, the first network device The device may re-send the location information of the terminal device to the terminal device and/or the second network device; when the second network device receives the location information of the terminal device, the second network device may send the location information of the terminal device The location information is then sent to the terminal device and/or the first network device. In some examples, after the LMF determines the location information, the LMF may send the location information to at least one of the terminal device, the TRP, and the base station corresponding to the cell to be measured. After receiving the location information, the TRP and/or the base station corresponding to the cell to be measured may also send the location information to at least one of the terminal equipment, other TRPs, and the base station corresponding to the other cell to be measured.

In the embodiment of the present application, when the first information is carried in the measurement configuration message, the method further includes: the terminal device reports the measurement to the first network device according to the measurement configuration message. Result; the first network device receives the measurement result from the terminal device, and makes a handover decision based on the measurement result; the first network device sends a handover request to the second network device, and the handover request carries all The location information and/or the TA; the first network device receives a handover confirmation message from the second network device, the handover confirmation message carrying the TA; the first network device sends the second The network device sends a handover request, the handover request carries the location information and/or the TA; the terminal device receives the handover command, and performs cell handover.

Specifically, after the first network device sends the measurement configuration message, it will determine the target base station according to the measurement result reported by the receiving terminal device, that is, make a handover decision. The measurement result is the measurement result of the terminal device on each cell in the cell list in the measurement configuration information. Based on the measurement result, the first network device selects a base station corresponding to a cell for the terminal device from the cell list as The target base station is the second network device. The first network device may preferentially select the cell where the location information of the terminal device has been obtained; the first network device may also select the base station corresponding to the cell with high priority or good service quality as the target base station according to preset selection rules; The load balancing strategy may also be based on the QoS Class Identifier (QCI) of the service of the terminal device. Of course, the embodiment of the present application does not limit the basis for other selections. After determining the target base station, the first network device needs to send a handover request to the target base station to notify the target base station that the terminal device needs to perform cell handover. If before sending the handover request, the first network device When a network device has acquired the location information of the terminal device and/or the TA, the first network device may carry the location information and/or the TA in the handover request. After receiving the handover request, the target base station will send a handover confirmation message to the first network device if it agrees to access by the terminal device, and the handover confirmation message carries the target base station configuration In the TA, after receiving the handover confirmation message, the first network device sends the handover command in the second handover confirmation message to the terminal device in a transparent manner, and carries the location information and the position information in the handover command. /Or the TA informs the current location information and/or TA of the terminal device.

Further, the TA carried in the handover confirmation message may be a TA reconfigured by the target base station (second network device) according to the location information of the terminal device, or the target base station may compensate according to the location information of the terminal device TA. In other words, when the target base station configures the TA, it can choose to compensate the uplink TA through the terminal device, or directly compensate the uplink TA through the handover confirmation request.

It should be noted that when the first network device does not obtain the location information and/or the TA, and the second network device obtains the location information and/or the TA, the LMF will When the location information is sent to the second network device, the location information and/or TA carried in the handover request may be previously acquired by the first network device, or may be left blank. The embodiment of the application does not limit this.

Further, the terminal device may identify the location information and/or TA carried in the handover request to indicate whether the location information and/or TA are currently acquired.

In another embodiment of the present application, when the first information is carried in a handover command, the method further includes:

The terminal device performs cell handover according to the handover command; the terminal device receives third information from the second network device, and the third information is carried in a resource scheduling message of the terminal device. The third information includes the location information and/or the TA.

Wherein, in order to ensure that the uplink clock of the terminal device is aligned, when the terminal device does not obtain the location information and/or the TA, the cell handover may not be performed immediately for the received handover command, that is, the terminal device receives the third information Before the terminal device performs cell handover. Further, the resource scheduling message carrying the third information may be a downlink resource allocation message, such as DCI.

In a possible embodiment of the present application, the third information may also be that the terminal device receives the location information of the terminal device from the first network device and/or the LMF, and the terminal device The location information determines the TA. Therefore, the terminal device can initiate uplink transmission to the second network device based on the location information/TA. In some examples, the third information may also be PRS. For example, the terminal device obtains the PRS measurement result according to the received PRS, and determines the location information of the terminal device according to the PRS measurement result, so as to be based on the location. The information/TA initiates uplink transmission to the second network device. Of course, the embodiments of the present application do not limit other implementation manners.

It should be noted that when the terminal device does not obtain the location information and/or the TA, it does not immediately perform cell handover for the received handover command, which may be based on the terminal device’s own decision or may be According to the instructions of the first network device and/or the second network device, this embodiment of the present application does not limit this.

Further, if the terminal device has not acquired the location information and/or the TA within a certain time after receiving the handover command, the terminal device may initiate the location information and/or the TA again To obtain the TA, for example, sending the SRS to the network device collection information again and/or continuously monitoring the PRS from the network device collection information; the terminal device can also directly perform cell handover. The embodiment of the application does not limit this.

The following Fig. 4 to Fig. 7 further illustrate the implementation manner of the embodiment of the present application by combining different sending manners of the first information and positioning configuration information.

Please refer to FIG. 4, which is a schematic flowchart of another method for determining a position according to an embodiment of the present application. This method can be applied to the communication system as shown in Fig. 1. As shown in Fig. 4, the method includes the following steps:

S410. The first network device sends a measurement configuration message to the terminal device, where the measurement configuration message carries first information.

Wherein, the first information includes SRS configuration information, and the SRS configuration information includes but is not limited to: SRS resource set and SRS transmission period.

Optionally, the first information may also include: network device collection information and beam information. Wherein, the network device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device is the terminal The network device corresponding to the current serving cell of the device, and the second network device is the network device corresponding to the target cell to which the terminal device is about to handover. The beam information and the spatial direction information are the beam directions used by the network device to send the SRS in the network device set information. The coordinate information is the location information of the network device in the network device collection information.

Further, the SRS configuration information may also include SRS transmission activation information. In some examples, the SRS transmission activation information may also be sent to the terminal device through separate signaling. The separate signaling may include RRC signaling, MAC CE, DCI, and newly defined signaling, which is not limited in the embodiment of the present application.

S420. The terminal device sends an SRS to the first network device and the second network device.

In the embodiment of the present application, the terminal device may periodically collect the network device on the SRS resource in the SRS resource set and/or the beam direction of the beam information according to the SRS transmission period, SRS resource set and/or beam information. The network device in the message sends SRS.

Wherein, the second network device may include one or more candidate base stations, and the candidate base stations include a target base station.

S430. The first network device and the second network device measure the SRS to obtain an SRS measurement result, and send the SRS measurement result to the LMF.

S440. The first network device receives the location information of the terminal device from the LMF.

In the embodiment of the present application, after the LMF receives the SRS measurement result, it can determine the location information of the terminal device through the location estimation algorithm based on the SRS measurement result of the network device and the location information of the network device stored by the LMF, and then calculate the location information of the terminal device. The location information is sent to the first network device.

S450. The terminal device reports a measurement result to the first network device according to the measurement configuration information.

After receiving the measurement configuration information, the terminal device can perform measurement (for example, same frequency, different frequency, different technology) according to the content of the measurement configuration information, and then report the measurement result to the first network.

In a possible example, the foregoing measurement configuration information may further include measurement objects, report configuration, measurement identification, and measurement period. Each measurement object can indicate the serving cell to be measured, a list of cell offsets that may be configured by the network, a list of blacklisted cells, and a list of whitelisted cells. The terminal device can perform event evaluation and measurement report on the whitelisted cells in the event evaluation and measurement report, without performing any operation on the blacklisted cells. Each measurement object corresponds to one or more reporting configurations, and the reporting configuration may include a reporting format. The report format may be the measurement report amount of the terminal device for each candidate cell. The report configuration may also include other related information, for example, the number of maximum serving cells reported by the terminal device. The measurement identifier associates the measurement object with the reporting configuration. A measurement object can be associated with multiple report configurations at the same time, and a report configuration can also be associated with multiple measurement objects at the same time, which are distinguished by measurement identifiers. The measurement interval is the period of measurement performed by the terminal device.

Among them, the measurement report performed by the terminal device may be an event-triggered report, or an event-triggered periodic report. Event-triggered reporting may be that the terminal device meets the measurement event entry threshold configured by the network device and lasts for a period of time, then triggers the measurement report to be sent, and the measurement report process ends after the measurement report is sent once. Event-triggered periodic reporting can be when the terminal device meets the measurement event entry threshold configured by the network and continues for a period of time, and then triggers the measurement report to be sent. After the reporting is triggered, the timer between multiple measurements and the counter for the number of measurements are started until The measurement report process ends after the number of reports reaches the requirement, and the embodiment of the application does not limit it here.

Optionally, the number of reporting times triggered by the above event can be 1, the reporting interval can be any value, and the terminal device can ignore the reporting interval. The number of reporting times for event-triggered periodic reporting can be greater than 1, and the reporting interval is based on the interval parameter configured by the network device to set the reporting cycle timer.

S460. The first network device receives a measurement result from the terminal device, and makes a handover decision according to the measurement result.

The first network device may determine the target cell from one or more candidate cells according to the measurement report, that is, the first network device may determine the target base station corresponding to the target cell from the multiple candidate base stations in the second network device according to the measurement report.

S470: The first network device sends a handover request to the second network device, where the handover request carries the location information and/or TA.

After receiving the location information, the first network device may determine the TA according to the location information. When the first network device sends a handover request to the second network device (target base station), the location information and/or TA may be carried in the handover request, so that the second network device can obtain the location information and/or the terminal device TA, which can compensate when the upstream clock is not aligned.

S480. The first network device receives a handover confirmation message from the second network device, where the handover confirmation message carries the TA.

After receiving the handover request, if the terminal device is allowed to access, it will send a handover confirmation message to the first network device, and carry its configured TA in the handover confirmation message. The TA carried in the handover confirmation message may be a TA reconfigured by the second network device according to the location information, or a TA that the second network device performs compensation according to the location information of the terminal device. That is, when the second network device configures the TA, it can choose to compensate the uplink TA through the terminal device, or directly compensate the uplink TA through the handover confirmation request.

S490. The first network device sends a handover command to the terminal device, where the handover command carries the location information and/or the TA.

In the embodiment of the present application, the first network device carries the location information and/or the TA in the handover command to enable the terminal device to obtain its current location information and/or TA, so that the second network device selects to pass the terminal When the device compensates for the uplink TA, the terminal device can achieve alignment with the uplink clock of the second network device.

It can be seen that in this embodiment of the application, the first network device carries the first information through the measurement configuration information, so that the terminal device and the second network device can perform handover based on the acquired location information of the terminal device, thereby avoiding random During the switching of the access process, the uplink clock is not synchronized because the terminal equipment and the network equipment obtain different location information of the terminal equipment, and the performance of the terminal equipment is optimized.

Please refer to FIG. 5. FIG. 5 is a schematic flowchart of a location confirmation method according to an embodiment of the application. The method can be applied to the communication system shown in FIG. 1. As shown in FIG. 5, the method includes the following steps:

S510. The first network device sends a handover command to the terminal device, where the measurement configuration message carries first information.

S520. The terminal device sends an SRS to the first network device and the second network device.

S530. The first network device and the second network device measure the SRS to obtain an SRS measurement result, and send the SRS measurement result to the LMF.

S540: The first network device receives the location information of the terminal device from the LMF.

It should be noted that the second network device in the embodiment of the present application may be the target base station.

For the specific implementation manners of the foregoing S510-540, reference may be made to the specific implementation manners described in S410-440 in FIG. 4, and details are not described herein again.

S550. The first network device sends the location information and/or TA to the second network device.

After receiving the location information, the first network device may determine the TA according to the location information, and send the location information and/or TA to the second network device, so that the second network device can obtain the location of the terminal device Information and/or TA can be compensated in the case where the upstream clock is not aligned.

S560. The terminal device receives third information from the second network device, where the third information includes the location information and/or TA.

Wherein, after the second network device receives the location information and/or TA, in order to compensate for the uplink TA, the second network device may send third information to the terminal device, and the third information may be carried in the terminal In the resource scheduling message of the device, for example, the DCI used for the downlink resource allocation of the terminal device. The third information may include the location information and/or TA, so that the terminal device obtains its current location information and/or TA, and the terminal device performs cell handover after obtaining the location information and/or TA.

It can be seen that in the embodiment of the present application, the first network device carries the first information through the switching command, so that the terminal device and the second network device can obtain the location information of the terminal device by Xiaohong during the switching process, thereby avoiding the During the handover of the random access process, the uplink clock is not synchronized because the terminal equipment and the network equipment obtain different location information of the terminal equipment, and the performance of the terminal equipment is optimized.

Please refer to FIG. 6. FIG. 6 is a schematic flowchart of a location confirmation method provided by an embodiment of the application. The method can be applied to the communication system shown in FIG. 1. As shown in FIG. 6, the method includes the following steps:

S610. The first network device sends a measurement configuration message to the terminal device, where the measurement configuration message carries first information.

Wherein, the first information includes PRS configuration information, and the PRS configuration information includes but is not limited to: PRS resource set and PRS transmission period.

Optionally, the first information may also include: network device collection information, beam information and coordinate information. Wherein, the network device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device is the terminal The network device corresponding to the current serving cell of the device, and the second network device is the network device corresponding to the target cell to which the terminal device is about to handover. The beam information is the beam direction for the terminal device to monitor the PRS. The coordinate information is the location information of the network device in the network device collection information.

Further, the PRS configuration information may also include PRS transmission activation information. In some examples, the PRS transmission activation information may also be sent to the terminal device through separate signaling. The separate signaling may include RRC signaling, MAC CE, DCI, and newly defined signaling, which is not limited in the embodiment of the present application.

S620: The terminal device monitors the PRS from the first network device and the second network device.

In the embodiment of the present application, the terminal device periodically monitors the PRS sent by the first network device and the second network device on the PRS resource set and/or the beam direction according to the PRS transmission period, PRS resource set and/or beam information .

S630. The terminal device measures the PRS to obtain a PRS measurement result, and sends the PRS measurement result to the LMF.

After the terminal device monitors the PRS, it measures the PRS that sends the downlink, that is, measures the PRS on the communication link from the first network device and/or the second network device that sends the PRS to the terminal device, and obtains the downlink The PRS measurement result of the link, after all the monitored PRS is measured, all the PRS measurement results obtained by the measurement are sent to the LMF.

S640. The first network device receives the location information of the terminal device from the LMF.

S650. The terminal device reports a measurement result to the first network device according to the measurement configuration information.

S660. The first network device receives a measurement result from the terminal device, and makes a handover decision according to the measurement result.

S670. The first network device sends a handover request to the second network device, where the handover request carries the location information and/or TA.

S680. The first network device receives a handover confirmation message from the second network device, where the handover confirmation message carries the TA;

S690. The first network device sends a handover command to the terminal device, where the handover command carries the location information and/or the TA.

For the specific implementation manners of the foregoing S640-S690, reference may be made to the specific implementation manners described in S440-S490 in FIG. 4, which will not be repeated here.

Please refer to FIG. 7. FIG. 7 is a schematic flowchart of a location confirmation method according to an embodiment of the application. The method can be applied to the communication system shown in FIG. 1. As shown in FIG. 7, the method includes the following steps:

S710. The first network device sends a handover command to the terminal device, where the measurement configuration message carries first information.

S720. The terminal device monitors the PRS from the first network device and the second network device.

S730. The terminal device measures the PRS to obtain a PRS measurement result, and sends the PRS measurement result to the LMF.

For the specific implementation manners of the foregoing S710-S730, reference may be made to the specific implementation manners described in S610-S630 in FIG. 6, which will not be repeated here.

S740. The first network device receives the location information of the terminal device from the LMF.

S750. The first network device sends the location information to the second network device.

S760. The terminal device receives third information from the second network device, where the third information includes the location information and/or TA.

For the specific implementation manners of the foregoing S750-S760, reference may be made to the specific implementation manners described in S550-S560 in FIG. 5, which will not be repeated here.

The position determination method according to the embodiment of the present application is described in detail above with reference to FIGS. 3 to 7, and the position determination apparatus according to the embodiment of the present application will be described in detail below with reference to FIG. 8.

Please refer to FIG. 8. FIG. 8 is a location determining apparatus 800 provided by an embodiment of the present application. The apparatus 800 may be a terminal device, and the apparatus 800 may be a network device or a chip in a network device. The device 800 includes: a transceiver unit 810 and a processing unit 820.

In a possible implementation manner, the apparatus 800 is configured to execute each process and step corresponding to the terminal device in the foregoing location determination method.

The transceiver unit 810 is configured to receive first information from a first network device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

The transceiver unit 810 is further configured to send second information according to the first information, where the second information is used to determine location information of the terminal device.

Optionally, the first information further includes at least one of the following: a list of cells to be measured, TPR information, network equipment collection information, beam information, spatial direction information, and coordinate information, and the network equipment collection information includes at least one of the following : The first network device, the second network device, and at least one adjacent network device of the first network device, the first network device is the network device corresponding to the current serving cell of the terminal device, and the second network device The network device is the network device corresponding to the target cell to which the terminal device is about to handover.

Optionally, the second information includes SRS; in terms of sending the second information according to the first information, the transceiving unit 810 is specifically configured to: according to the first information, send the network device aggregation information to the network The device sends the SRS, and the SRS is used to determine the location information.

Optionally, the second information includes a PRS measurement result; in terms of sending the second information according to the first information, the transceiver unit 810 is specifically configured to: monitor information from the network device set according to the first information And send the PRS measurement result to the network device and/or LMF in the network device collection information, and the PRS measurement result is used to determine the location information.

Optionally, the transceiving unit 810 is further configured to receive the location information from at least one of the first network device, the LMF, and the second network device.

The processing unit 820 is configured to determine the timing advance TA according to the location information.

Optionally, the processing unit 820 is further configured to determine the location information according to the PRS.

Optionally, in terms of determining the location information according to the PRS, the processing unit 820 is further specifically configured to: measure the PRS to obtain the PRS measurement result, and determine the location information according to the PRS measurement result .

Optionally, when the first information is carried in a measurement configuration message, the transceiver unit 810 is further configured to report a measurement result to the first network device according to the measurement configuration message;

The processing unit 820 is further configured to receive the handover command from the first network device and perform cell handover, where the handover command includes the location information and/or the TA.

Optionally, when the first information is carried in a handover command, the processing unit 820 is further configured to: perform cell handover according to the handover command;

The transceiving unit 810 is further configured to receive third information from the second network device, the third information being carried in a resource scheduling message of the terminal device, and the third information including the location information and / Or the TA.

In another possible implementation manner, the apparatus 800 is configured to execute each process and step corresponding to the first network device in the foregoing location determination method.

The transceiver unit 810 is configured to send a first message to a terminal device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

The transceiver unit 810 is further configured to receive second information from the terminal device, where the second information is used to determine location information of the terminal device.

Optionally, the transceiving unit 810 is further configured to receive the first information from the second network device and/or LMF.

Optionally, the second information includes SRS, and the processing unit 820 is configured to measure the SRS to obtain an SRS measurement result, and send the SRS measurement result to the LMF.

Optionally, the second information includes a PRS measurement result, and the transceiving unit 810 is further configured to send the PRS to the terminal device.

Optionally, the transceiving unit 810 is further configured to receive the location information from the LMF and/or the second network device;

The processing unit 820 is further configured to determine the TA according to the location information.

Optionally, the processing unit 820 is further configured to determine the location information according to the PRS measurement result.

Optionally, the transceiving unit 810 is further configured to send the location information and/or the TA to the second network device and/or the terminal device.

Optionally, when the first information is carried in the measurement configuration message, the transceiving unit 810 is further configured to receive the measurement result from the terminal device; and send a handover request to the second network device , The handover request carries the location information and/or the TA; receives a handover confirmation message from the second network device, the handover confirmation message carries the TA; sends a handover command to the terminal device, so The switching command carries the location information and/or the TA.

The processing unit 820 is further configured to make a handover decision according to the measurement result.

It should be understood that the device 800 here is embodied in the form of a functional unit. The term "unit" here can refer to application specific integrated circuits (ASICs), electronic circuits, processors used to execute one or more software or firmware programs (such as shared processors, proprietary processors, or groups). Processor, etc.) and memory, merged logic circuits, and/or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the apparatus 800 may be specifically the terminal device, the first network device, or the second network device in the above-mentioned embodiment. Each process and/or step corresponding to the device, the first network device, or the second network device is not repeated here to avoid repetition.

The apparatus 800 of each of the above solutions has the function of implementing the corresponding steps performed by the terminal device, the first network device, or the second network device in the foregoing method; the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the sending unit can be replaced by a transmitter, the receiving unit can be replaced by a receiver, and other units, such as a determining unit, can be replaced by a processor and executed respectively. Transceiving operations and related processing operations in each method embodiment.

In the embodiment of the present application, the device 800 in FIG. 8 may also be a chip or a chip system, such as a system on chip (system on chip, SoC). Correspondingly, the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited here.

FIG. 9 shows a computer device 900 provided by an embodiment of the present application. The computer device 900 includes a processor 910, a memory 920, a transceiver 930, and one or more programs, where the one or more programs are stored in In the above-mentioned memory 920, and configured to be executed by the above-mentioned processor 910.

In a possible implementation manner, the computer device is a terminal device, and the above-mentioned program includes instructions for executing the following steps:

Receiving first information from a first network device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command; and sending the first information according to the first information Second information. The second information is used to determine the location information of the terminal device.

Optionally, the second information includes SRS; in terms of sending the second information according to the first information, the program includes instructions specifically for performing the following steps:

Send the SRS to a network device in the network device set information according to the first information, where the SRS is used to determine the location information.

Optionally, the second information includes PRS measurement results; in terms of sending the second information according to the first information, the program includes instructions specifically for performing the following steps:

Monitor the PRS from the network device set information according to the first information, and send the PRS measurement result to the network device and/or LMF in the network device set information, and the PRS measurement result is used to determine the location information.

Optionally, the program includes instructions further used to perform the following steps:

Receiving the location information from at least one of the first network device, the LMF, and the second network device; the terminal device determines a timing advance TA according to the location information.

The location information is determined according to the PRS.

The PRS is measured to obtain the PRS measurement result, and the location information is determined according to the PRS measurement result.

Optionally, in a case where the first information is carried in a measurement configuration message, the program includes instructions further used to perform the following steps:

Report a measurement result to the first network device according to the measurement configuration message;

Receiving the handover command from the first network device to perform cell handover, where the handover command includes the location information and/or the TA.

Optionally, in a case where the first information is carried in a handover command, the program includes instructions further used to perform the following steps:

Perform cell handover according to the handover command;

Receiving third information from the second network device, the third information being carried in a resource scheduling message of the terminal device, and the third information including the location information and/or the TA.

In another possible implementation manner, the computer device is a first network device, and the above-mentioned program includes instructions for executing the following steps:

Sending a first message to the terminal device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

Receiving second information from the terminal device, where the second information is used to determine location information of the terminal device.

Receiving the first information from the second network device and/or the LMF.

Optionally, the second information includes SRS, and the program includes instructions further used to perform the following steps:

Measure the SRS to obtain an SRS measurement result, and send the SRS measurement result to the LMF.

Optionally, the second information includes PRS measurement results, and the program includes instructions further used to perform the following steps:

Send the PRS to the terminal device.

Receiving the location information from the LMF and/or the second network device; the first network device determines the TA according to the location information.

The location information is determined according to the PRS measurement result.

Sending the location information and/or the TA to the second network device and/or the terminal device.

Optionally, in a case where the first information is carried in the measurement configuration message, the program includes instructions further used to perform the following steps:

Receiving a measurement result from the terminal device, and making a handover decision based on the measurement result;

Sending a handover request to the second network device, where the handover request carries the location information and/or the TA;

Receiving a handover confirmation message from the second network device, where the handover confirmation message carries the TA;

Send a handover command to the terminal device, where the handover command carries the location information and/or the TA.

It should be understood that the memory 920 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory. For example, the memory can also store device type information.

It should be understood that, in the embodiment of the present application, the processor 910 of the foregoing apparatus may be a central processing unit (CPU), and the processor 910 may also be other general-purpose processors, digital signal processors (DSP), and dedicated integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software units in the processor. The software unit may be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor executes the instructions in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Some or all of the steps described in the device, the first network device, or the second network device.

The embodiment of the present application also provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the terminal in the above-mentioned method. Some or all of the steps described in the device, the first network device, or the second network device. The computer program product may be a software installation package.

It should be understood that the term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three types of relationships, for example, A and/or B, which can mean that A alone exists, and both A and B exist. , There are three cases of B alone. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

A person of ordinary skill in the art may be aware that, in combination with the method steps and units described in the embodiments disclosed herein, they can be implemented by electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, in the above description, the steps and components of the embodiments have been generally described in accordance with their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. A person of ordinary skill in the art may use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the present application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium. It includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed in this application. Modifications or replacements, these modifications or replacements shall be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for location determination, characterized in that the method includes:

The terminal device receives first information from the first network device, where the first information includes channel sounding reference signal SRS configuration information and/or location reference signal PRS configuration information, and the first information is carried in a measurement configuration message or a handover command ；

The terminal device sends second information according to the first information, and the second information is used to determine location information of the terminal device.
The method according to claim 1, wherein the first information further includes at least one of the following: a list of cells to be measured, TPR information of sending and receiving points, network equipment collection information, beam information, spatial direction information and coordinate information, so The network device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device is currently serving the terminal device A network device corresponding to a cell, and the second network device is a network device corresponding to a target cell to which the terminal device is about to handover.
The method according to claim 1 or 2, wherein the second information includes SRS;

The terminal device sending second information according to the first information includes:

The terminal device sends the SRS to the network device in the network device set information according to the first information, where the SRS is used to determine the location information.
The method according to claim 1 or 2, wherein the second information includes a PRS measurement result;

The terminal device sending second information according to the first information includes:

The terminal device monitors the PRS from the network device in the network device set information according to the first information, and sends the PRS measurement result to the network device and/or location management function LMF in the network device set information , The PRS measurement result is used to determine the location information.
The method according to any one of claims 1-3, wherein the method further comprises:

Receiving, by the terminal device, the location information from at least one of the first network device, the LMF, and the second network device;

The terminal device determines the timing advance TA according to the location information.
The method according to claim 4, wherein the method further comprises:

The terminal device determines the location information according to the PRS.
The method according to claim 6, wherein the terminal device determining the location information according to the PRS comprises:

The terminal device measures the PRS to obtain the PRS measurement result, and determines the location information according to the PRS measurement result.
The method according to claim 5, characterized in that, when the first information is carried in a measurement configuration message, the method further comprises:

The terminal device reports the measurement result to the first network device according to the measurement configuration message;

The terminal device receives the handover command from the first network device to perform cell handover, and the handover command includes the location information and/or the TA.
The method according to claim 5, wherein, when the first information is carried in a handover command, the method further comprises:

The terminal device performs cell handover according to the handover command;

The terminal device receives third information from the second network device, the third information is carried in a resource scheduling message of the terminal device, and the third information includes the location information and/or the TA .
A method for location determination, characterized in that the method includes:

The first network device sends a first message to the terminal device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

The first network device receives second information from the terminal device, where the second information is used to determine location information of the terminal device.
The method according to claim 10, wherein the first information further includes at least one of the following: a list of cells to be measured, TPR information, network equipment collection information, beam information, spatial direction information, and coordinate information, and the network The device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device corresponds to the current serving cell of the terminal device The second network device is the network device corresponding to the target cell to which the terminal device is about to handover.
The method according to claim 11, wherein the method further comprises:

The first network device receives the first information from the second network device and/or the LMF.
The method according to any one of claims 10-12, wherein the second information comprises SRS, and the method further comprises:

The first network device measures the SRS to obtain an SRS measurement result, and sends the SRS measurement result to the LMF.
The method according to any one of claims 10-12, wherein the second information comprises a PRS measurement result, and the method further comprises:

The first network device sends a PRS to the terminal device.
The method according to any one of claims 12-14, wherein the method further comprises:

Receiving, by the first network device, the location information from the LMF and/or the second network device;

The first network device determines the TA according to the location information.
The method according to claim 14, wherein the method further comprises:

The first network device determines the location information according to the PRS measurement result.
The method according to claim 15 or 16, characterized in that the method further comprises:

The first network device sends the location information and/or the TA to the second network device and/or the terminal device.
The method according to any one of claims 12-17, wherein when the first information is carried in the measurement configuration message, the method further comprises:

The first network device receives the measurement result from the terminal device, and makes a handover decision according to the measurement result;

Sending, by the first network device, a handover request to the second network device, where the handover request carries the location information and/or the TA;

Receiving, by the first network device, a handover confirmation message from the second network device, where the handover confirmation message carries the TA;

The first network device sends a handover command to the terminal device, where the handover command carries the location information and/or the TA.
A position determining device, characterized in that the device includes:

A transceiver unit, configured to receive first information from a first network device, where the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

The transceiver unit is further configured to send second information according to the first information, and the second information is used to determine location information of the terminal device.
The apparatus according to claim 19, wherein the first information further includes at least one of the following: a list of cells to be measured, TPR information, network equipment collection information, beam information, spatial direction information, and coordinate information, and the network The device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device corresponds to the current serving cell of the terminal device The second network device is the network device corresponding to the target cell to which the terminal device is about to handover.
The device according to claim 19 or 20, wherein the second information comprises SRS; in terms of sending the second information according to the first information,

The transceiving unit is specifically configured to send the SRS to a network device in the network device set information according to the first information, where the SRS is used to determine the location information.
The device according to claim 19 or 20, wherein the second information includes a PRS measurement result; in terms of sending the second information according to the first information,

The transceiving unit is specifically configured to monitor the PRS from the network device set information according to the first information, and send the PRS measurement result to the network device and/or LMF in the network device set information, the The PRS measurement result is used to determine the location information.
The device according to any one of claims 19-22, characterized in that:

The transceiving unit is further configured to receive the location information from at least one of the first network device, the LMF, and the second network device;

The device further includes: a processing unit, configured to determine a timing advance TA according to the location information.
The device of claim 22, wherein:

The processing unit is further configured to determine the location information according to the PRS.
The device according to claim 24, wherein, in terms of determining the location information according to the PRS, the processing unit is specifically configured to:

The PRS is measured to obtain the PRS measurement result, and the location information is determined according to the PRS measurement result.
The device according to claim 23, wherein, in the case that the first information is carried in a measurement configuration message,

The transceiver unit is further configured to report a measurement result to the first network device according to the measurement configuration message;

The transceiving unit is further configured to receive the handover command from the first network device, where the handover command includes the location information and/or the TA;

The processing unit is further configured to perform cell handover according to the handover command.
The device according to claim 23, wherein, in the case that the first information is carried in a handover command,

The processing unit is further configured to perform cell handover according to the handover command;

The transceiving unit is further configured to receive third information from the second network device, the third information being carried in a resource scheduling message of the terminal device, and the third information including the location information and/ Or the TA.
A position determining device, characterized in that:

The transceiver unit is configured to send a first message to a terminal device, the first information includes SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a handover command;

The transceiver unit is further configured to receive second information from the terminal device, where the second information is used to determine location information of the terminal device.
The apparatus according to claim 28, wherein the first information further includes at least one of the following: a list of cells to be measured, TPR information, network equipment collection information, beam information, spatial direction information, and coordinate information, and the network The device set information includes at least one of the following: the first network device, the second network device, and at least one adjacent network device of the first network device, and the first network device corresponds to the current serving cell of the terminal device The second network device is the network device corresponding to the target cell to which the terminal device is about to handover.
The device according to claim 11, wherein:

The transceiving unit is further configured to receive the first information from the second network device and/or LMF.
The device according to any one of claims 28-30, wherein the second information comprises SRS,

The transceiver unit is also used to measure the SRS, obtain the SRS measurement result, and send the SRS measurement result to the LMF.
The device according to any one of claims 28-30, wherein the second information comprises a PRS measurement result,

The transceiver unit is also used to send PRS to the terminal device.
The device according to any one of claims 30-32, wherein:

The transceiving unit is further configured to receive the location information from the LMF and/or the second network device;

The device further includes: a processing unit, configured to determine the TA according to the location information.
The device of claim 32, wherein:

The processing unit is further configured to determine the location information according to the PRS measurement result.
The device according to claim 33 or 34, wherein:

The transceiving unit is further configured to send the location information and/or the TA to the second network device and/or the terminal device.
The device according to any one of claims 30-35, wherein, in the case that the first information is carried in the measurement configuration message,

The transceiver unit is also used to receive measurement results from terminal equipment;

The transceiving unit is further configured to send a handover request to the second network device, where the handover request carries the location information and/or the TA;

The transceiving unit is further configured to receive a handover confirmation message from the second network device, where the handover confirmation message carries the TA;

The transceiving unit is further configured to send a handover command to the terminal device, where the handover command carries the location information and/or the TA;

The processing unit is further configured to make a handover decision according to the measurement result.
A terminal device, characterized in that the terminal device includes a processor, a memory, a transceiver, and one or more programs, and the one or more programs are stored in the memory and configured by the The processor executes, and the program includes instructions for executing the steps in the method according to any one of claims 1-9.
A network device, characterized in that the network device includes a processor, a memory, a transceiver, and one or more programs, and the one or more programs are stored in the memory and configured by the The processor executes, and the program includes instructions for executing the steps in the method according to any one of claims 10-18.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute any one of claims 1-9 method.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute any one of claims 10-18 method.