CN115176501A

CN115176501A - Position determination method and device

Info

Publication number: CN115176501A
Application number: CN202080097575.3A
Authority: CN
Inventors: 尤心
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2022-10-11
Also published as: WO2021203366A1

Abstract

The embodiment of the application provides a position determining method and a position determining device, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives first information from first network equipment, wherein the first information comprises SRS configuration information and/or PRS configuration information, and the first information is carried in measurement configuration information or a switching command; and sending second information according to the first information, wherein the second information is used for determining the position information of the terminal equipment. The method and the device realize that the position information of the terminal equipment is determined based on the positioning configuration information during cell switching, further avoid the problem of uplink clock asynchronism caused by the fact that the terminal equipment and the network equipment acquire different position information of the terminal equipment in the switching without the random access process, and optimize the performance of the terminal equipment.

Description

Position determination method and device

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for determining a position.

Background

In a Long Term Evolution (LTE) system and a 5th Generation cellular mobile communication system (5 th Generation, hereinafter referred to as 5G, also referred to as New Radio, new air interface, or NR), a handover mode that does not need to undergo a Random Access Channel (RACH) is defined, that is, a Random Access Channel-less (RACH-less) handover is not performed, and in the RACH-less handover, a process in which a User Equipment (UE) transmits a Random Access Preamble (Preamble) and a network Equipment transmits a Random Access Response (RAR) is not performed, and a Timing Advance (TA) from the UE to a target cell is obtained in other ways, so that cell handover time is shortened.

In a Non-Terrestrial Network (NTN) system, a satellite is located at a high distance from the ground, and transmission delay is large. In order to shorten the cell switching time, the NTN system may use RACH-less, that is, in the case that the UE knows that the target cell is configured with a TA or its location information, the UE may directly send uplink data to the target cell. However, in this process, the UE and the UE location information acquired by the network device may be different, which results in that the uplink clocks are not synchronized, so that the target cell cannot receive the uplink data sent by the UE.

Disclosure of Invention

The embodiment of the application provides a position determining method and device, which can avoid the condition that uplink clocks are not synchronous due to the fact that terminal equipment and network equipment acquire different position information of the terminal equipment.

In a first aspect, an embodiment of the present application provides a method for determining a location, where the method includes:

the method comprises the steps that terminal equipment receives first information from first network equipment, wherein the first information comprises channel Sounding Reference Signal (SRS) configuration information and/or Position Reference Signal (PRS) configuration information, and the first information is carried in a measurement configuration message or a switching command;

and the terminal equipment sends second information according to the first information, wherein the second information is used for determining the position information of the terminal equipment.

In a second aspect, an embodiment of the present application provides a position determination method, where the method includes:

first network equipment sends first information to terminal equipment, wherein the first information comprises SRS configuration information and/or PRS configuration information, and the first information is carried in a measurement configuration message or a switching command;

and the first network equipment receives second information from the terminal equipment, wherein the second information is used for determining the position information of the terminal equipment.

In a third aspect, an embodiment of the present application provides a position determining apparatus, including:

a transceiving unit, configured to receive, by a terminal device, 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 the terminal equipment sends second information according to the first information, wherein the second information is used for determining the position information of the terminal equipment.

In a fourth aspect, an embodiment of the present application provides a position determining apparatus, including:

a transceiving unit, configured to send, by a first network device, first information 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; and the first network equipment receives second information from the terminal equipment, wherein the second information is used for determining the position information of the terminal equipment.

In a fifth aspect, embodiments of the present application provide a terminal device, which includes a processor, a memory, a transceiver, and one or more programs, which are stored in the memory and configured to be executed by the processor, and which include instructions for performing some or all of the steps described in the method of the first aspect.

In a sixth aspect, embodiments of the present application provide a network device, which includes a processor, a memory, a transceiver, and one or more programs, which are stored in the memory and configured to be executed by the processor, the programs including instructions for performing some or all of the steps described in the method of the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the method of the first aspect.

In an eighth aspect, the present invention provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute some or all of the steps described in the method of the second aspect.

In a ninth aspect, embodiments of the present application provide a computer program product, where 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 perform some or all of the steps described in the method according to the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

In a tenth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps described in the method according to the second aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, a terminal device receives first information from a first network device, where the first information includes SRS configuration information and/or PRS configuration information, the first information is carried in a measurement configuration message or a handover command, and then sends second information according to the first information, where the second information is used to determine location information of the terminal device, so that the location information of the terminal device is determined based on the location configuration information, thereby avoiding a problem of uplink clock asynchrony caused by different location information of the terminal device and the terminal device obtained by the network device in handover without a random access process, and optimizing performance of the terminal device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

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

fig. 2A is a flowchart illustrating a random access procedure according to an embodiment of the present application;

fig. 2B is a flowchart illustrating a no random access procedure according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a position determining method according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a position determination method according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a position determination method according to an embodiment of the present application;

fig. 6 is a schematic flowchart of a position determining method according to an embodiment of the present application;

fig. 7 is a schematic flowchart of a position determining method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a position determination apparatus according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a computer device according to an embodiment of the present application.

Detailed Description

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

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

1) The terminal equipment is a device with a wireless communication function, can be deployed on land and comprises an indoor or outdoor, a handheld, a wearable or a vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical treatment (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in smart home (smart home), and the like. The terminal device may also be a handheld device with wireless communication capabilities, a vehicle mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, etc. The terminal devices in different networks may be called different names, for example: a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or user equipment, a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) telephone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a terminal device in a 5G network or a future evolution network, etc.

2) A network device is a device deployed in a radio access network to provide wireless communication functions. For example, the Network device may be a Radio Access Network (RAN) device on an Access Network side in a cellular Network, and the RAN device is a device for accessing a terminal device to a wireless Network, and includes but is not limited to: evolved Node B (eNB), radio Network Controller (RNC), node B (NB), base Station Controller (BSC), base Transceiver Station (BTS), home Base Station (e.g., home evolved Node B, or Home Node B, HNB), base Band Unit (BBU), management Entity (Mobility Management Entity, MME); for another example, the Network device may also be a node device in a Wireless Local Area Network (WLAN), such as an Access Controller (AC), a gateway, or a WIFI Access Point (AP); for another example, the network device may also be a transmission node or a transmission reception point (TRP or TP) in the NR system.

3) Location Management Function (LMF): the method is used for selecting a corresponding positioning method according to positioning precision requirements, time delay requirements and the like and selecting a corresponding communication protocol to complete the interaction of information required by positioning. The LMF is also used to provide other information required for location services, or location policies.

4) Configuration information of positioning: the main idea of the positioning technology is to utilize a positioning principle similar to a Global Navigation Satellite System (GNSS) to calculate the location of a terminal device by measuring a Reference Signal Time Difference (RSTD) or a departure angle or an arrival angle of configuration information of positioning of two or more network devices or terminal devices, with the position of each network device being known.

5) And (3) switching process: when a terminal using network service moves from one serving cell to another, or due to load adjustment of wireless transmission service, activation of operation maintenance, equipment failure, etc., in order to ensure communication continuity and service quality, the system transfers the communication link between the terminal and the original serving cell to the new serving cell, i.e., performs a handover procedure.

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

(1) Preparing for switching: including measurement control and reporting, handover requests and acknowledgements. The switching confirmation message contains a switching command generated by the target service cell, the source base station does not allow any modification to the switching command generated by the target base station, and the switching command is directly forwarded to the terminal.

(2) And (3) switching execution: the terminal immediately executes the switching process after receiving the switching command, namely the terminal disconnects the source base station and is connected with the target base station (for example, random access is executed, and an RRC switching completion message is sent to the target base station); SN state transfer, data forwarding.

(3) And (3) completing the switching: the target base station performs a Path Switch with an access and mobility management function AMF and a user plane function UPF, releasing the UE context of the source base station.

6) Measurement configuration (measurement configuration) message: for mobility measurements in connected state. In the RRC connection state, the source base station issues a measurement configuration message to the terminal device through dedicated signaling. The measurement configuration message includes an object to be measured by the terminal device, a cell list, a reporting mode, a measurement identifier, an event parameter, and the like.

7) Switching command: the handover command (Radio Resource Control (RRC) connection reconfiguration message carrying mobility Control information) is generated by the target base station and is transmitted to the UE through the source base station. The source base station performs the necessary ciphering and integrity protection for this message. When the terminal device receives the message, it will initiate the handover procedure by using the relevant parameters in the message. The terminal device may initiate the handover process without waiting for a Hybrid Automatic Repeat request (HARQ) or an Automatic Repeat request (ARQ) response sent by the lower layer to the source base station.

8) TA: the parameter is used for representing the time deviation of the network equipment for receiving the data sent by the terminal equipment, and the physical meaning of the parameter refers to the back-and-forth time delay of the terminal equipment and the network equipment.

In a first part, the architecture and background of the communication system of the solution disclosed in the present application are presented below.

For example, please refer to fig. 1, fig. 1 shows a schematic diagram of a communication system architecture provided by an embodiment of the present application. The satellite communication system includes a network device, a terminal device, and a position management function. As shown in fig. 1, the network device, the terminal device and the location management function may communicate with each other. The satellite communication system may be a system adopting a 5G mobile communication technology, an Evolved Long Term Evolution (LTE) system, a communication system with a plurality of communication technologies integrated (for example, a communication system with an integrated LTE technology and an integrated NR technology), or a subsequent Evolved 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 neighboring network device of the first network device. In some embodiments, in order to distinguish the first network device from the second network device, the first network device is used as a base station to which the current terminal device is connected and is a source base station; the second network device is a base station to which the terminal device needs to be switched and is a target base station. The first network device and/or the second network device may perform wireless communication with the terminal device via one or more antennas, and in practical applications, the connections between the above respective devices may be wireless connections, so as to intuitively indicate the connection relationship between the respective devices, which is illustrated by solid lines in fig. 1.

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

It should be noted that the forms and the numbers of the network devices, the terminal devices and the LMFs shown in fig. 1 are only used for example, and do not constitute a limitation to the embodiments of the present application.

Currently, 3GPP is researching Non-Terrestrial Network (NTN) technology, and the NTN generally provides communication service to Terrestrial users by using satellite communication. Satellite communications have many unique advantages over terrestrial cellular communications. First, satellite communication is not limited by user territory, for example, general land communication can not cover areas where communication equipment cannot be set up, such as oceans, mountains, deserts, and the like, or communication coverage is not performed due to sparse population, and since one satellite can cover a larger ground and can orbit around the earth, every corner on the earth can be covered by satellite communication. Secondly, satellite communication can cover in remote mountain areas, poor and laggard countries or areas with lower cost, which is beneficial to promote the development of the areas. Thirdly, the satellite communication distance is long, and the communication cost is not obviously increased when the communication distance is increased; and finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites are classified into Low-Earth Orbit (LEO) satellites, medium-Earth Orbit (MEO) satellites, geosynchronous Orbit (GEO) satellites, high-elliptic Orbit (HEO) satellites, and the like according to different orbital heights, and LEO and GEO are mainly studied at the present stage.

Wherein the height range of the low-orbit satellite is 500 km-1500 km, and the corresponding orbit period is about 1.5 hours-2 hours. The signal propagation delay for inter-user single-hop communications is typically less than 20ms. Maximum satellite visibility time 20 minutes. The signal propagation distance is short, the link loss is less, and the requirement on the transmitting power of the user terminal is not high.

A geosynchronous orbit satellite, with an orbital altitude of 35786km, has a period of 24 hours of rotation around the earth. The signal propagation delay for inter-user single-hop communications is typically 250ms. In order to ensure the coverage of the satellite and improve the system capacity of the whole satellite communication system, the satellite adopts multiple beams to cover the ground, and one satellite can form dozens of or even hundreds of beams to cover the ground; one satellite beam can cover a ground area several tens to hundreds of kilometers in diameter.

In both LTE and 5G NR, a handover of a terminal device between a source base station and a target base station typically undergoes a RACH procedure, as shown in fig. 2A. That is, after receiving the handover command from the source base station, the terminal device needs to send a Preamble to the destination base station, and the destination base station replies an RAR to the terminal device, where the RAR includes an uplink TA of the terminal device to the destination base station, and the TA ensures that the time when signals of different terminal devices reach the base station is basically aligned. One of the functions of the RACH procedure is: the terminal equipment acquires the uplink timing advance of the target base station. Here, LTE also defines a handover mode that does not need to undergo a RACH procedure, i.e., RACH-less handover, as shown in fig. 2B. In the RACH-less switching, no process that the terminal equipment sends the Preamble and the base station replies the RAR exists, the TA from the terminal equipment to the target base station is obtained through other modes, and the switching time is shortened. In the NTN system, the transmission delay is large because the satellite is located at a high distance from the ground. Therefore, in order to shorten the cell switching time, RACH-less may be used in the NTN system, that is, when the terminal device knows that the network device is configured with the TA or its location information, the terminal device may directly generate uplink data to the target base station. However, in this process, the location information of the terminal device acquired by the terminal device and the location information of the terminal device acquired by the network device may be different, which may cause the uplink clock to be asynchronous, so that the network device may not receive the uplink data sent by the terminal device, which may affect user experience.

In order to solve the above problems, the present application provides a method and an apparatus for determining a position, in which a terminal device receives first information from a first network device, the first information is used for positioning measurement of the terminal device, and then sends second information according to the first information, the second information is used for determining position information of the terminal device, so that the position information of the terminal device is determined based on configuration information for positioning, thereby avoiding the problem of uplink clock asynchrony caused by different position information of the terminal device and the network device obtained by the terminal device in the handover without a random access process, and optimizing the performance of the terminal device.

In the second section, the claims disclosed in the embodiments of the present application are presented below.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for location confirmation according to an embodiment of the present invention, where the method may be applied to the communication system shown in fig. 1, and as shown in fig. 3, the method includes the following steps:

s310, the first network equipment sends first information to the terminal equipment.

Wherein the first information includes channel Sounding Reference Signal (SRS) configuration information and/or Positioning Reference Signal (PRS) configuration information. The terminal device and/or the network device may obtain location information of the terminal device based on the SRS configuration information and/or the measurement result of the PRS configuration information and a location estimation algorithm.

In this embodiment, the first information may be carried in a measurement configuration message or a handover command. When the terminal device performs cell handover without a random access procedure, in order to synchronize uplink clocks, the terminal device and the target base station may obtain location information of the terminal device before the terminal device performs cell handover, so that the uplink TAs are aligned. Therefore, in the cell handover process, the first network device may carry the first information when sending the measurement configuration message or the handover command, so that the terminal device determines the located configuration information, and further determines the location information of the terminal device according to the located configuration information.

Optionally, the first information may further include at least one of: the method comprises the steps of a list of cells to be measured, transmit Receive Point (TRP) information, network equipment set information, beam information, space direction information and coordinate information.

Wherein the network device set information comprises at least one of: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched. The TRP information may also include information of one or more TRPs, 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 equipment set information, the network equipment in the network equipment set information may include a base station corresponding to a cell to be measured in the cell list to be measured and/or a TRP in the TRP information. In some examples, when the first information includes TRP information, the TRP information may include base stations corresponding to cells to be measured in the cell list to be measured and/or network equipment in the network equipment set information. In some examples, when the first information includes a list of cells to be measured, the list of cells to be measured may include TRPs in the TRP information and/or network devices in the network device set information. It should be noted that, in some examples, a network device in the network device set information may be referred to as a TRP, and may also be referred to as a base station corresponding to a cell to be measured, and of course, the embodiments of the present application are not limited to other names. In some examples, in order to distinguish between a first network device and a second network device, the first network device may be used as a base station to which a current terminal device is connected and is a source base station; the second network device is a base station to which the terminal device is to be switched and is a target base station.

It should be noted that, the number of base stations that the second network device may include at different stages of the handover process is different, for example, when the first network device does not determine the target base station, that is, before the first network device does not make a handover decision, the second network device may include one or more candidate base stations, where the candidate base stations include the target base station; when the first network device has made a handover decision and determined the target base station, the second network device may include the 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 carries the first Information in Downlink Control Information (DCI) in a handover preparation phase and sends the first Information to the terminal device. The signaling may include RRC signaling, a Multimedia Access Control (MAC) Control Element (CE), DCI, and a newly defined signaling, which is not limited in this embodiment of the present invention.

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 first network device configuration, the first network device may carry the first information in the measurement configuration message or the handover command, or send the first information to a terminal device through a signaling; when the first information is configured by a second network device or an LMF, the first network device may receive the first information from the second network device and/or the LMF, and send the first information to a terminal device in a transparent transmission manner (without any modification), carried in the measurement configuration message or the handover command, or through a signaling; when the first information is configured by the LMF, the first information may be sent to the terminal device through a Protocol Data Unit (PDU) of an LTE Positioning Protocol (LPP), which is not limited in this embodiment of the present application.

Further, when the LMF configures the first information, the network device in the network device set information may report the suggested 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 equipment receives the first information from the network equipment.

S330, the terminal equipment sends second information according to the first information.

Wherein the second information comprises SRS and/or PRS measurement results for determining location information of the terminal device. After the terminal device receives the first information, the terminal device may determine configuration information used for positioning according to SRS configuration information and/or PRS configuration information included in the first information, for example, when the first information includes SRS configuration information, the terminal device determines the SRS configuration information as the configuration information used for positioning; when the first information includes PRS configuration information, the terminal device determines the PRS configuration information as configuration information for positioning. The terminal device sends the second information according to the positioning configuration information, where 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: the set of PRS resources and the PRS transmission period.

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

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

In this embodiment of the application, if the first information includes SRS configuration information and network device set information, and the second information includes SRS, the sending, by the terminal device, the second information according to the first information may include: and the terminal equipment sends the SRS to the network equipment in the network equipment set information according to the first information, wherein the SRS is used for determining the position information of the terminal equipment. 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 transmit the SRS to the network device in the network device set information according to an SRS transmission period. And the network equipment in the network equipment set information which receives the SRS measures the SRS to obtain an SRS measuring result, and sends the measured SRS measuring result to the LMF. The LMF may determine the location information of the terminal device through a location estimation algorithm based on the SRS measurement result of the network device and 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 transmit an SRS to the network device in the network device set information in a beam direction in the SRS resource set.

In another embodiment of the present application, after receiving the SRS, the first network device measures the SRS to obtain an SRS measurement result, and meanwhile, the first network device may further receive an SRS measurement result from at least one neighboring network device of the first network device and the second network device.

Specifically, after receiving the SRS, the network devices in the network device set information measure the SRS to obtain their own SRS measurement results. Wherein the second network device and/or at least one neighboring network device of the first network device may transmit the measured SRS measurement to the first network device. The first network device may determine the location information of the terminal device by a location estimation method based on the SRS measurement result and its location information from the second network device and/or the neighboring network device, and the SRS measurement result and the location information of itself. In some examples, when the first information further includes TRP information and/or a cell to be measured, the first network device may further receive an SRS measurement result from a base station corresponding to the TRP and/or the cell to be measured, and determine the location information of the terminal device according to the SRS measurement result.

Optionally, when the first information includes TRP information and/or a cell list to be measured, the terminal device may further send, according to the first information, an SRS to a base station corresponding to a Transmit Receive Point (TRP) and/or a cell to be measured. And after receiving the SRS, the base station corresponding to the TRP and/or the cell to be measured measures to obtain an 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 set information, and the second information includes a PRS measurement result, the sending, by the terminal device, the second information according to the first information includes: and the terminal equipment monitors the PRS from the network equipment in the network equipment set information according to the first information and sends the PRS measurement result to the network equipment and/or LMF in the network equipment set information, wherein the PRS measurement result is used for determining the position information.

And the terminal equipment periodically listens to the PRS from the network equipment in the network equipment set information according to a PRS transmission period. After monitoring the PRS, the terminal device measures the PRS transmitted in the downlink, that is, measures the PRS on a communication link from the network device transmitting the PRS to the terminal device, obtains a PRS measurement result of the downlink, and after measuring all monitored PRS, sends all measured PRS measurement results to the network device and/or the 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 listen to PRS in a beam direction of the set of PRS resources. The terminal device may also transmit the PRS measurement using resources in a PRS resource set and/or a beam direction in beam information.

The network devices in the network device set information may send PRS to the terminal device, that is, at least one of the first network device, the second network device, and at least one neighboring network device of the first network device sends PRS to the terminal device. 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 a 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 TPR and/or a base station corresponding to the cell to be measured may also send a PRS to the terminal device according to the indication of the LMF, and the terminal device may send a PRS measurement result of the PRS to the TPR and/or the base station corresponding to the cell to be measured after monitoring the TPR and/or the PRS of the base station corresponding to the cell to be measured.

Optionally, the method further comprises: and the terminal equipment determines the position information terminal equipment according to the PRS. When the first network device receives the PRS measurement, the first network device determines the location information according to the PRS measurement.

Wherein the determining, by the terminal device, the location information according to the PRS comprises: and the terminal equipment measures the PRS of the network equipment set information to obtain a PRS measurement result, and determines the position information according to the PRS measurement result.

Specifically, when the first information further includes coordinate information, after the terminal device measures all the monitored PRSs, the terminal device may determine the location information of the terminal device through a location estimation algorithm by combining all the PRS measurement results with the coordinate information of the network device in the network device set information. Similarly, after receiving the PRS measurement result, the network device in the network device set information may determine the location information of the terminal device by combining the PRS measurement result with its own location and/or known locations of other network devices. In some examples, when the first information further includes TRP information and/or a list of cells to be measured, the PRS measurement result may be further combined with coordinate information of the base station corresponding to the TRP and/or the cell to be measured to determine location information of the terminal device, and the base station corresponding to the TRP and/or the cell to be measured may combine the PRS measurement result with its own location and/or known locations of other TRPs and/or base stations corresponding to the cells to be measured to determine location information of the terminal device.

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

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

When the first information includes SRS configuration information, after the LMF determines the location information according to an 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 set information. After receiving the location information, the network device in the network device aggregate information may also send the location information to the terminal device and/or other network devices in the network device aggregate 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, and when the first network device receives the location information of the terminal device, the first network device may send the location information of the terminal device to the terminal device and/or the second network device again; when the second network device receives the location information of the terminal device, the second network device may resend the location information of the terminal device to the terminal device and/or the first network device. In some examples, after determining the location information, the LMF may send the location information to at least one of the terminal device, the TRP, and a base station corresponding to a cell to be measured. After receiving the position information, the TRP and/or the base station corresponding to the cell to be measured may send the position information to at least one of the terminal device, another TRP, and the base station corresponding to another cell to be measured.

In this embodiment of the present application, when the first information is carried in the measurement configuration message, the method further includes: the terminal equipment reports a measurement result to the first network equipment according to the measurement configuration message; the first network equipment receives the measurement result from the terminal equipment and carries out switching judgment according to the measurement result; the first network equipment sends a switching request to the second network equipment, wherein the switching request carries the position information and/or the TA; the first network equipment receives a switching confirmation message from the second network equipment, wherein the switching confirmation message carries the TA; the first network equipment sends a switching request to the second network equipment, wherein the switching request carries the position information and/or the TA; and the terminal equipment receives the switching command and executes cell switching.

Specifically, after sending the measurement configuration message, the first network device determines the target base station according to the measurement result reported by the receiving terminal device, that is, performs handover decision. The measurement result is a measurement result of each cell in a cell list in the measurement configuration information by the terminal device, and the first network device selects a base station corresponding to one cell from the cell list as a target base station, that is, a second network device, for the terminal device based on the measurement result. The first network equipment can preferentially select the cell of the acquired position information of the terminal equipment; the first network device may also select, according to a preset selection rule, for example, a base station corresponding to a cell with a high priority or a good service quality as a target base station; or according to the load balancing policy, the QoS Class Identifier (QCI) of the service of the terminal device may also be based on, and of course, the embodiments of the present application do not limit other selection bases either. 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, and if the first network device has already acquired the location information and/or the TA of the terminal device before sending the handover request, the first network device may carry the location information and/or the TA in the handover request. And after receiving the handover request, the target base station sends a handover confirmation message to the first network device if the terminal device is granted access, wherein the handover confirmation message carries the TA configured by the target base station, and after receiving the handover confirmation message, the first network device sends the handover command in the second handover confirmation message to the terminal device on the basis of a transparent transmission manner, and the handover command carries the location information and/or the TA to inform the terminal device of the current location information and/or TA.

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 a TA compensated by the target base station according to the location information of the terminal device. That is, when the target base station configures the TA, the target base station may select to compensate the uplink TA by the terminal device, or may directly compensate the uplink TA by the handover confirmation request.

It should be noted that, when the first network device does not acquire the location information and/or the TA, and the second network device acquires the location information and/or the TA, that is, when the LMF sends the location information to the second network device, the location information and/or the TA carried in the handover request may be acquired by the first network device before, or may be null. The embodiment of the present application does not limit this.

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

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

the terminal equipment executes cell switching according to the switching command; the terminal device receives third information from the second network device, where 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.

In order to ensure that the uplink clocks of the terminal device are aligned, when the terminal device does not acquire the location information and/or the TA, the terminal device may not immediately perform cell handover on the received handover command, that is, before the terminal device receives the third information and performs cell handover, the terminal device may not immediately perform cell handover on the received handover command. 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 location information of the terminal device, which is received by the terminal device from the first network device and/or the LMF, and the terminal device determines the TA according to the location information. So that 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 a PRS, e.g., a terminal device obtains PRS measurement results according to the received PRS, and determines location information of the terminal device according to the PRS measurement results, so as to initiate an uplink transmission to a second network device based on the location information/TA. Of course, the embodiments of the present application also do not limit other implementations.

It should be noted that, when the terminal device does not acquire the location information and/or the TA, the cell handover is not immediately performed on the received handover command, which may be according to a decision of the terminal device itself or according to an instruction of the first network device and/or the second network device, which is not limited in this embodiment of the present application.

Further, within a certain time period after receiving the handover command, if the location information and/or the TA is not yet acquired, the terminal device may initiate acquisition of the location information and/or the TA again, for example, send an SRS to the network device set information again and/or continuously monitor a PRS from the network device set information; the terminal device may also directly perform cell handover. The embodiment of the present application does not limit this.

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

Referring to fig. 4, fig. 4 is a schematic flowchart of another position determining method according to an embodiment of the present disclosure. The method may be applied in a communication system as shown in fig. 1, and as shown in fig. 4, the method comprises the following steps:

s410, the first network equipment sends a measurement configuration message to the terminal equipment, and 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 further include: the network device sets information, beam information. Wherein the network device set information includes at least one of: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched. The beam information and the spatial direction information are the beam directions used by the network equipment in the network equipment set information to send the SRS. The coordinate information is the position information of the network device in the network device set information.

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

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

In this embodiment, the terminal device may periodically transmit, according to the SRS transmission period, the SRS resource set, and/or the beam information, the SRS to the network device in the network device set information on the SRS resources in the SRS resource set and/or in the beam direction of the beam information.

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

S430, the first network equipment and the second network equipment measure the SRS to obtain SRS measurement results, and the SRS measurement results are sent to an LMF.

S440, the first network equipment receives the position information of the terminal equipment from the LMF.

In this embodiment of the application, after receiving the SRS measurement result, the LMF may determine, by using a location estimation algorithm, location information of the terminal device based on the SRS measurement result of the network device and location information of the network device stored in the LMF, and send the location information to the first network device.

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

After receiving the measurement configuration information, the terminal device may perform measurement (for example, common frequency, different frequency, and 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 measurement configuration information may further include a measurement object, a reporting configuration, a measurement identifier, and a measurement period. Each measurement object may indicate a serving cell to measure, a list of cell offsets that the network may configure, a list of blacklisted cells and a list of whitelisted cells. The terminal device may perform event evaluation and measurement reporting on the white-listed cells in the event evaluation and measurement reporting without performing any operation on the black-listed cells. Each measurement object corresponds to one or more reporting configurations, which may include a reporting format. The reporting format may be a measurement report amount of the terminal device for each candidate cell. The reporting configuration may also include other related information, for example, the number of the largest serving cells reported by the terminal device. The measurement identifier associates the measurement object with the reporting configuration. One measurement object can be associated with a plurality of reporting configurations at the same time, and one reporting configuration can also be associated with a plurality of measurement objects at the same time, and is distinguished by measurement identifiers. The measurement interval is a period in which the terminal device performs measurement.

The terminal device may perform measurement reporting by event-triggered reporting or by event-triggered periodic reporting. The event triggered reporting may be that the terminal device triggers sending of a measurement report after meeting a measurement event entry threshold configured by the network device and continuing for a period of time, and the measurement reporting process is ended after the measurement report is sent once. The event triggered periodic reporting may be that the terminal device triggers sending of a measurement report after meeting a threshold for a measurement event configured by a network and continuing for a period of time, and after the reporting is triggered, a timer between multiple measurements and a counter of measurement times are started until the measurement reporting process is finished after the reporting times meet a requirement, which is not limited herein.

Optionally, the number of reporting times of the event-triggered reporting may be 1, the reporting interval may be any value, and the terminal device may ignore the reporting interval. The reporting times of the event triggering periodic reporting can be more than 1, and the reporting interval sets a reporting period timer according to the interval parameter configured by the network equipment.

And S460, the first network equipment receives the measurement result from the terminal equipment and carries out switching judgment according to the measurement result.

The first network device may determine the target cell from the 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 a plurality of candidate base stations in the second network device according to the measurement report.

S470, the first network device sends a switching request to the second network device, and the switching 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 the TA may be carried in the handover request, so that the second network device may obtain the location information and/or the TA of the terminal device, and may compensate for the case where uplink clocks are not aligned.

S480, the first network equipment receives a switching confirmation message from the second network equipment, wherein the switching confirmation message carries the TA.

After receiving the handover request, if the terminal device is granted access, a handover confirmation message is sent to the first network device, and the TA configured by the first network device is carried 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 compensated by the second network device according to the location information of the terminal device. That is, when the second network device configures the TA, the terminal device may select to compensate the uplink TA, or the second network device may directly compensate the uplink TA through the handover confirmation request.

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

In this embodiment of the present application, the first network device carries the location information and/or the TA in the handover command, so that the terminal device can obtain current location information and/or the TA of the terminal device, and when the second network device selects to compensate the uplink TA through the terminal device, the terminal device can achieve uplink clock alignment with the second network device.

It can be seen that, in the embodiment of the present 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 the handover based on the obtained location information of the terminal device, thereby avoiding the problem of uplink clock asynchronism caused by different location information obtained by the terminal device and the network device during the handover without the random access process, and optimizing the performance of the terminal device.

Referring to fig. 5, fig. 5 is a flowchart illustrating a method for location confirmation according to an embodiment of the present invention, where the method may be applied to the communication system shown in fig. 1, and as shown in fig. 5, the method includes the following steps:

and S510, the first network equipment sends a switching command to the terminal equipment, and the measurement configuration message carries first information.

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

S530, the first network equipment and the second network equipment measure the SRS to obtain an SRS measurement result, and the SRS measurement result is sent to an LMF.

S540, the first network equipment receives the position information of the terminal equipment from the LMF.

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

The specific implementation of S510-540 may refer to the specific implementation described in S410-440 in fig. 4, and is 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 a TA according to the location information, and send the location information and/or the TA to the second network device, so that the second network device can obtain the location information and/or the TA of the terminal device, and can compensate for the case that uplink clocks are 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.

After receiving the location information and/or TA, the second network device may send, to compensate for the uplink TA, third information to the terminal device, where the third information may be carried in a resource scheduling message of the terminal device, for example, DCI used for 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 handover command, so that the terminal device and the second network device can obtain the location information of the terminal device in a handover process, thereby avoiding the problem of uplink clock asynchronism caused by different location information of the terminal device and the network device obtained by the terminal device in a handover process without a random access process, and optimizing the performance of the terminal device.

Referring to fig. 6, fig. 6 is a flowchart illustrating a method for location confirmation according to an embodiment of the present invention, where the method may be applied to the communication system shown in fig. 1, and 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, and 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: a PRS resource set and a PRS transmission period.

Optionally, the first information may further include: the network device sets information, beam information and coordinate information. Wherein the network device set information comprises at least one of: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched. The beam information is the beam direction of the PRS monitored by the terminal equipment. The coordinate information is the position information of the network device in the network device set information.

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

S620, the terminal equipment monitors PRS from the first network equipment and the second network equipment.

In this embodiment, according to the PRS transmission period, the set of PRS resources, and/or the beam information, the terminal device periodically listens to the PRS transmitted by the first network device and the second network device on the set of PRS resources and/or in the beam direction.

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

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

And after monitoring the PRS, the terminal equipment measures the PRS which sends the downlink, namely measures the PRS on a communication link from the first network equipment and/or the second network equipment which send the PRS to the terminal equipment to obtain a PRS measurement result of the downlink, and sends all measured PRS measurement results to the LMF after measuring all monitored PRSs.

S640, the first network device receives the position information of the terminal device from the LMF.

And S650, the terminal device reports the measurement result to the first network device according to the measurement configuration information.

And S660, the first network equipment receives the measurement result from the terminal equipment and carries out switching judgment according to the measurement result.

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

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

s690, the first network device sends a switching command to the terminal device, wherein the switching command carries the position information and/or the TA.

The specific implementation of S640-S690 may refer to the specific implementation described in S440-S490 in fig. 4, and is not described herein again.

Referring to fig. 7, fig. 7 is a flowchart illustrating a method for location confirmation according to an embodiment of the present application, where the method may be applied to the communication system shown in fig. 1, and as shown in fig. 7, the method includes the following steps:

s710, the first network equipment sends a switching command to the terminal equipment, and the measurement configuration message carries first information.

S720, the terminal equipment monitors PRSs from the first network equipment and the second network equipment.

And S730, the terminal equipment measures the PRS to obtain a PRS measurement result, and sends the PRS measurement result to the LMF.

The above-mentioned specific implementation of S710-S730 may refer to the specific implementation described in S610-S630 in fig. 6, and is not described herein again.

And S740, the first network equipment receives the position information of the terminal equipment from the LMF.

S750, the first network device sends the position 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.

The specific implementation of S750-S760 may refer to the specific implementation described in S550-S560 in fig. 5, and is not described herein again.

The position determination method according to the embodiment of the present application is described in detail above with reference to fig. 3 to 7, and the position determination device according to the embodiment of the present application is described in detail below with reference to fig. 8.

Referring to fig. 8, fig. 8 is a location determining apparatus 800 according to an embodiment of the present application, where the apparatus 800 may be a terminal device, and the apparatus 800 may be a network device, or a chip in the network device. The apparatus 800 comprises: a transceiving unit 810 and a processing unit 820.

In a possible implementation manner, the apparatus 800 is configured to execute various flows and steps corresponding to the terminal device in the above location determining method.

A transceiver unit 810, 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 transceiving 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 comprises at least one of: the method comprises the following steps of a cell list to be measured, TPR information, network equipment set information, beam information, space direction information and coordinate information, wherein the network equipment set information comprises at least one of the following items: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched.

Optionally, the second information comprises an SRS; in terms of sending the second information according to the first information, the transceiver unit 810 is specifically configured to: and sending the SRS to the network equipment in the network equipment set information according to the first information, wherein the SRS is used for determining the position information.

Optionally, the second information comprises PRS measurements; in terms of sending the second information according to the first information, the transceiver unit 810 is specifically configured to: and monitoring the PRS from the network equipment set information according to the first information, and sending the PRS measurement result to the network equipment and/or the LMF in the network equipment set information, wherein the PRS measurement result is used for determining the position information.

Optionally, the transceiver unit 810 is further configured to: receiving 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 a 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 determining the position information according to the PRS, the processing unit 820 is further specifically configured to: and measuring the PRS to obtain the PRS measurement result, and determining the position information according to the PRS measurement result.

Optionally, in a case that 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, in a case that the first information is carried in a handover command, the processing unit 820 is further configured to: executing cell switching according to the switching command;

the transceiver unit 810 is further configured to: receiving third information from the second network device, where 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.

In another possible implementation manner, the apparatus 800 is configured to execute the respective procedures and steps corresponding to the first network device in the location determining method.

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

the transceiver 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 transceiver 810 is further configured to receive the first information from the second network device and/or the LMF.

Optionally, the second information includes an SRS, and the processing unit 820 is configured to measure the SRS, 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 transceiver unit 810 is further configured to transmit a PRS to the terminal device.

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

Optionally, in a case that the first information is carried in the measurement configuration message, the transceiver unit 810 is further configured to receive a measurement result from the terminal device; 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; and sending a switching command to the terminal equipment, wherein the switching command carries the position 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 appreciated that the apparatus 800 herein is embodied in the form of a functional unit. The term unit herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor), and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, it may be understood by those skilled in the art that the apparatus 800 may be embodied as a terminal device, a first network device, or a second network device in the foregoing embodiment, and the apparatus 800 may be configured to execute each procedure and/or step corresponding to the terminal device, the first network device, or the second network device in the foregoing method embodiment, which is not described herein again to avoid repetition.

The apparatus 800 of each of the above solutions has a function of implementing corresponding steps executed by the terminal device, the first network device, or the second network device in the above method; the functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software comprises one or more modules corresponding to the functions; for example, the transmitting unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, other units, such as the determining unit, may be replaced by a processor, and the transceiving operation and the related processing operation in the respective method embodiments are respectively performed.

In an embodiment of the present application, the apparatus 800 in fig. 8 may also be a chip or a chip system, for example: system on chip (SoC). Correspondingly, the receiving unit and the sending unit may be a transceiver circuit of the chip, and are not limited herein.

Fig. 9 illustrates a computer device 900 according to an embodiment of the present application, where 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 the memory 920 and configured to be executed by the processor 910.

In one possible implementation, the computer device is a terminal device, and the program includes instructions for performing the following steps:

receiving first information from a first network device, wherein the first information comprises 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 second information according to the first information, wherein the second information is used for determining the position information of the terminal equipment.

Optionally, the second information comprises an SRS; in respect of sending second information according to the first information, the program comprises instructions in particular for carrying out the steps of:

and sending the SRS to the network equipment in the network equipment set information according to the first information, wherein the SRS is used for determining the position information.

Optionally, the second information comprises PRS measurements; in respect of sending second information according to the first information, the program comprises instructions in particular for carrying out the steps of:

and monitoring the PRS from the network equipment set information according to the first information, and sending the PRS measurement result to the network equipment and/or the LMF in the network equipment set information, wherein the PRS measurement result is used for determining the position information.

Optionally, the program comprises instructions for further performing the steps of:

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

determining the location information according to the PRS.

and measuring the PRS to obtain a PRS measurement result, and determining the position information according to the PRS measurement result.

Optionally, in a case that the first information is carried in a measurement configuration message, the program includes instructions further for performing the following steps:

reporting a measurement result to the first network equipment according to the measurement configuration message;

and receiving the switching command from the first network equipment, and executing cell switching, wherein the switching command comprises the position information and/or the TA.

Optionally, in a case that the first information is carried in a handover command, the program includes instructions further configured to:

executing cell switching according to the switching command;

receiving third information from the second network device, where 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.

In another possible implementation, the computer device is a first network device, and the program includes instructions for performing the following steps:

sending a first message to a terminal device, wherein the first message comprises SRS configuration information and/or PRS configuration information, and the first message is carried in a measurement configuration message or a switching command;

and receiving second information from the terminal equipment, wherein the second information is used for determining the position information of the terminal equipment.

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

Optionally, the second information includes an SRS, and the program includes instructions for further performing the steps of:

and measuring the SRS to obtain an SRS measurement result, and sending the SRS measurement result to the LMF.

Optionally, the second information comprises PRS measurements, the program comprising instructions for further performing the steps of:

and sending PRS to the terminal equipment.

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

determining the location information according to the PRS measurement result.

Optionally, the program includes instructions for performing the further steps of:

and sending the position information and/or the TA to the second network equipment and/or the terminal equipment.

Optionally, in a case that the first information is carried in the measurement configuration message, the program includes instructions further for performing the following steps:

receiving a measuring result from the terminal equipment, and performing switching judgment according to the measuring result;

sending a switching request to the second network equipment, wherein the switching request carries the position information and/or the TA;

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

and sending a switching command to the terminal equipment, wherein the switching command carries the position information and/or the TA.

It will be appreciated that the memory 920 can include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may 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 processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in a memory, and a processor executes instructions in the memory and combines hardware thereof to perform the steps of the above-described method. To avoid repetition, it is not described in detail here.

The present application also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the above method embodiments as described in the terminal device, the first network device, or the second network device.

Embodiments of the present application further provide a computer program product, where 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 perform some or all of the steps described in the above method for the terminal 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" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various method steps and elements described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of both, and that the steps and elements of the various embodiments have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of position determination, the method comprising:

the method comprises the steps that terminal equipment receives first information from first network equipment, wherein the first information comprises channel Sounding Reference Signal (SRS) configuration information and/or Position Reference Signal (PRS) configuration information, and the first information is carried in a measurement configuration message or a switching command;

and the terminal equipment sends second information according to the first information, wherein the second information is used for determining the position information of the terminal equipment.
The method of claim 1, wherein the first information further comprises at least one of: the method comprises the following steps of a cell list to be measured, transmitting and receiving point TPR information, network equipment set information, beam information, space direction information and coordinate information, wherein the network equipment set information comprises at least one of the following information: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched.
The method of claim 1 or 2, wherein the second information comprises an SRS;

the terminal equipment sends second information according to the first information, and the second information comprises the following steps:

and the terminal equipment sends the SRS to the network equipment in the network equipment set information according to the first information, wherein the SRS is used for determining the position information.
The method of claim 1 or 2, wherein the second information comprises PRS measurement results;

the terminal equipment sends the second information according to the first information, and the second information comprises the following steps:

the terminal equipment monitors the PRS from the network equipment in the network equipment set information according to the first information, and sends the PRS measurement result to the network equipment and/or a Location Management Function (LMF) in the network equipment set information, wherein the PRS measurement result is used for determining the location information.
The method of any one of claims 1-3, further comprising:

the terminal equipment receives the position information from at least one of the first network equipment, the LMF and the second network equipment;

and the terminal equipment determines a timing advance TA according to the position information.
The method of claim 4, further comprising:

and the terminal equipment determines the position information according to the PRS.
The method of claim 6, wherein the determining, by the terminal device, the location information according to the PRS comprises:

and the terminal equipment measures the PRS to obtain the PRS measurement result, and determines the position information according to the PRS measurement result.
The method of claim 5, wherein if the first information is carried in a measurement configuration message, the method further comprises:

the terminal equipment reports a measurement result to the first network equipment according to the measurement configuration message;

and the terminal equipment receives the switching command from the first network equipment and executes cell switching, wherein the switching command comprises the position information and/or the TA.
The method of claim 5, wherein if the first information is carried in a handover command, the method further comprises:

the terminal equipment executes cell switching according to the switching command;

the terminal device receives third information from the second network device, where 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 of position determination, the method comprising:

a first network device sends a first message to a terminal device, wherein the first message comprises SRS configuration information and/or PRS configuration information, and the first message is carried in a measurement configuration message or a switching command;

and the first network equipment receives second information from the terminal equipment, wherein the second information is used for determining the position information of the terminal equipment.
The method of claim 10, wherein the first information further comprises at least one of: the method comprises the following steps of a list of cells to be measured, TPR information, network equipment set information, beam information, space direction information and coordinate information, wherein the network equipment set information comprises at least one of the following items: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched.
The method of claim 11, further comprising:

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

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

and the first network equipment sends PRS to the terminal equipment.
The method according to any one of claims 12-14, further comprising:

the first network device receiving the location information from the LMF and/or the second network device;

and the first network equipment determines the TA according to the position information.
The method of claim 14, further comprising:

the first network device determines the location information according to the PRS measurement result.
The method of claim 15 or 16, further comprising:

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

the first network equipment receives the measurement result from the terminal equipment and carries out switching judgment according to the measurement result;

the first network equipment sends a switching request to the second network equipment, wherein the switching request carries the position information and/or the TA;

the first network equipment receives a switching confirmation message from the second network equipment, wherein the switching confirmation message carries the TA;

and the first network equipment sends a switching command to the terminal equipment, wherein the switching command carries the position information and/or the TA.
A position determining apparatus, characterized in that the apparatus comprises:

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;

and the transceiving unit is further used for sending second information according to the first information, wherein the second information is used for determining the position information of the terminal equipment.
The apparatus of claim 19, wherein the first information further comprises at least one of: the method comprises the following steps of a cell list to be measured, TPR information, network equipment set information, beam information, space direction information and coordinate information, wherein the network equipment set information comprises at least one of the following items: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched.
The apparatus according to claim 19 or 20, wherein the second information comprises SRS; in transmitting second information based on the first information,

the transceiver unit is specifically configured to: and sending the SRS to the network equipment in the network equipment set information according to the first information, wherein the SRS is used for determining the position information.
The apparatus according to claim 19 or 20, wherein the second information comprises PRS measurement results; in transmitting second information based on the first information,

the transceiver unit is specifically configured to: and monitoring the PRS from the network equipment set information according to the first information, and sending the PRS measurement result to the network equipment and/or the LMF in the network equipment set information, wherein the PRS measurement result is used for determining the position information.
The apparatus according to any one of claims 19 to 22,

the transceiver 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 comprises: and the processing unit is used for determining a time advance TA according to the position information.
The apparatus of claim 22,

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

and measuring the PRS to obtain the PRS measurement result, and determining the position information according to the PRS measurement result.
The apparatus of claim 23, wherein, in a 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 transceiver 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 execute cell handover according to the handover command.
The apparatus of claim 23, wherein if 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 transceiver unit is further configured to receive third information from the second network device, where 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 position determining apparatus, characterized in that,

the receiving and sending unit is configured to send a first message to a terminal device, where the first message includes SRS configuration information and/or PRS configuration information, and the first message 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 of claim 28, wherein the first information further comprises at least one of: the method comprises the following steps of a cell list to be measured, TPR information, network equipment set information, beam information, space direction information and coordinate information, wherein the network equipment set information comprises at least one of the following items: the first network device is a network device corresponding to a current serving cell of the terminal device, and the second network device is a network device corresponding to a target cell to which the terminal device is to be switched.
The apparatus of claim 11,

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

the transceiver unit is further configured to measure the SRS, obtain an SRS measurement result, and send the SRS measurement result to the LMF.
The apparatus of any one of claims 28-30, wherein the second information comprises PRS measurements,

the transceiver unit is further configured to send a PRS to the terminal device.
The apparatus of any one of claims 30-32,

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

the device further comprises: and the processing unit is used for determining the TA according to the position information.
The apparatus of claim 32,

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

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

the receiving and sending unit is also used for receiving the measuring result from the terminal equipment;

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

the transceiver 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;

and the processing unit is also used for carrying out switching judgment according to the measurement result.
A terminal device, characterized in that the terminal device comprises a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for carrying out the steps in the method according to any one of claims 1-9.
A network device, comprising a processor, memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any 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 perform the method according to any one of claims 1-9.
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 perform the method according to any one of claims 10-18.