Uplink positioning reference signal (SRS) configuration method, device, and network side device

Abstract

The present application discloses an uplink positioning reference signal (SRS) configuring method, apparatus and network side device, which belong to the field of communication technology. In an embodiment of the present application, the uplink positioning SRS configuring method includes: a first network side device sends uplink positioning SRS configuration related information to a second network side device in a process in which a serving cell or a local cell of a terminal is changed, where the uplink positioning SRS configuration related information is used to assist the second network side device in configuring an uplink positioning SRS of the terminal.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202111193195.2 filed in China on October 13, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communication technology, and specifically to a method, apparatus and network side device for configuring an uplink positioning reference signal (SRS). [Background technology]

[0003] In the related art, a positioning method based on an uplink reference signal has been introduced. Specifically, a Positioning Sounding Reference Signal (Pos SRS) configuration is requested by a Location Management Function (LMF), finally determined by a serving base station, and then transmitted to a terminal via the LMF. In the positioning process, the LMF requests related base stations (i.e., the serving base station and neighboring base stations) to measure Pos SRS, and after receiving the measurement results of the related base stations, determines the terminal's positioning result by calculation.

[0004] However, each terminal has its own Pos SRS configuration. If a terminal switches to a new cell or resumes while moving, the target base station corresponding to the new cell may release the Pos SRS configuration configured by the original serving base station due to a resource configuration conflict. As a result, the associated base station will no longer be able to receive Pos SRS and thus will not be able to obtain Pos SRS measurement results. In this case, the associated base station will feedback the measurement failure to the LMF, and the LMF can re-request a Pos SRS configuration. During positioning, if the terminal's movement range is relatively large, the Pos SRS configuration will be reconfigured frequently, thereby increasing the positioning delay. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide an uplink positioning reference signal (SRS) configuration method, device, and network side device that assist the network side device in configuring the uplink positioning reference signal (SRS) through interaction between network side devices, enable the uplink positioning SRS configuration configured by a first network side device to be continuously used in a second network side device, and reduce the frequency of reconfiguring the uplink positioning SRS configuration. [Means for solving the problem]

[0006] According to a first aspect, there is provided an uplink positioning SRS configuration method, the method comprising: In a process in which a serving cell or a local cell of a terminal changes, a first network side device sends uplink positioning SRS configuration related information to a second network side device; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal.

[0007] According to a second aspect, there is provided an uplink positioning SRS configuration device for use in a first network side device, the uplink positioning SRS configuration device comprising: a first sending module for sending uplink positioning SRS configuration related information to a second network side device in a process where a serving cell or a local cell of a terminal changes; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal.

[0008] According to a third aspect, there is provided an uplink positioning SRS configuration method, the method comprising: In a process in which a serving cell or a local cell of a terminal changes, a second network side device receives uplink positioning SRS configuration related information from a first network side device; The second network side device configures an uplink positioning SRS configuration of the terminal according to the uplink positioning SRS configuration related information; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal.

[0009] According to a fourth aspect, there is provided an uplink positioning SRS configuration device for use in a second network side device, the uplink positioning SRS configuration device comprising: A first receiving module for receiving uplink positioning SRS configuration related information from a first network side device during a process in which a serving cell or a local cell of a terminal changes; a first configuration module for configuring an uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration related information; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal.

[0010] According to a fifth aspect, there is provided a network side device, the network side device including a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect or implementing the steps of the method according to the third aspect.

[0011] According to a sixth aspect, there is provided a network side device, the network side device including: a processor and a communication interface, wherein the communication interface is used to send uplink positioning SRS configuration related information to a second network side device in a process in which a serving cell or a local cell of a terminal changes, wherein the uplink positioning SRS configuration related information is used to assist the second network side device in configuring an uplink positioning SRS of the terminal; Or, The communication interface is used to receive uplink positioning SRS configuration related information from a first network side device when a serving cell or a local cell of the terminal changes, and the processor is used to configure an uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration related information, where the uplink positioning SRS configuration related information is used to assist the second network side device in configuring an uplink positioning SRS of the terminal.

[0012] According to a seventh aspect, there is provided a readable storage medium having a program or instructions stored thereon, the program or instructions performing the steps of the method according to the first aspect or performing the steps of the method according to the third aspect when executed by a processor.

[0013] According to an eighth aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instruction to implement the method of the first aspect or to be used to implement the method of the third aspect.

[0014] According to a ninth aspect, there is provided a computer program / program product, the computer program / program product being stored on a non-transitory storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method according to the first aspect or to implement the steps of the method according to the third aspect.

[0015] According to a tenth aspect, there is provided a communications device, the communications device being configured to perform the steps of the method according to the first aspect or to implement the steps of the method according to the third aspect. [Effects of the Invention]

[0016] In an embodiment of the present application, when a serving cell or a local cell of a terminal changes, a first network side device transmits uplink positioning SRS configuration-related information to a second network side device, where the uplink positioning SRS configuration-related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal. In this way, when a serving cell switching or recovery (Resume) occurs during a terminal movement, the original serving cell can transmit uplink positioning SRS configuration-related information to a target serving cell after switching or recovery before or during the serving cell switching or recovery, to assist the target serving cell in configuring the uplink positioning SRS of the terminal. Therefore, when the target serving cell decides to release the uplink positioning SRS configured by the original serving cell after switching to the target serving cell, the problem in the related art can be avoided that the LMF can request the target serving cell to reconfigure the SRS only when it receives measurement failure feedback from the associated base station. Therefore, the embodiment of the present application can reduce the SRS reconfiguration probability and shorten the positioning delay. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Figure 2] FIG. 1 is a schematic diagram of an uplink positioning flow in the related art. [Figure 3] 1 is a flowchart of an uplink positioning SRS configuration method according to an embodiment of the present application; [Figure 4] 1 is a flowchart of another uplink positioning SRS configuration method according to an embodiment of the present application; [Figure 5] 1 is a structural schematic diagram of a first type of uplink positioning SRS configuration device according to an embodiment of the present application; [Figure 6] 1 is a structural schematic diagram of a second type of uplink positioning SRS configuration device according to an embodiment of the present application; [Figure 7] FIG. 2 is a structural schematic diagram of a network side device according to an embodiment of the present application; [Figure 8] FIG. 2 is a structural schematic diagram of another network-side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0018] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application fall within the scope of protection of the present application.

[0019] The terms "first," "second," etc. in the specification and claims of this application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It should be understood that terms used in this manner are interchangeable where appropriate, so that embodiments of this application may be performed in orders other than those illustrated or described herein, and that objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects; for example, a first object may be one or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the related objects.

[0020] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the described techniques may be used in the above-mentioned systems and radio technologies as well as other systems and radio technologies. Although the following description describes a New Radio (NR) system for illustrative purposes and uses NR terminology in most of the following description, these techniques may be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0021] 1 is a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be a terminal-side device such as a mobile phone, a tablet personal computer (TPC), a laptop computer (LC) (also called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device (WD), a vehicle user equipment (VUE), a pedestrian user equipment (PUE), a smart home (home equipment with wireless communication function, such as a refrigerator, a television, a washing machine, or furniture), and the wearable device includes a smart watch, a smart bracelet, a smart earphone, a smart glasses, a smart accessory (smart bracelet, a smart hand chain, a smart ring, a smart necklace, a smart ankle bracelet, a smart anklet, etc.), a smart band, a smart clothing, a game console, etc. It should be noted that the embodiments of the present application are not limited to a specific type of terminal 11 .The network side equipment 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a wireless local area network (WLAN) access point, a wireless fidelity (WiFi) node, a transmitting receiving point (TRP), or any other suitable term in the art, as long as the same technical effect is achieved. The base station is not limited to a specific technical term. For illustrative purposes, the embodiments of this application only take base stations in an NR system as examples, but do not limit the specific type of base station.

[0022] As shown in FIG. 2, in the related art, the uplink positioning flow of a user equipment (UE) mainly includes the following steps:

[0023] Step 1, LMF obtains the transmission and reception point (TRP) information, Step 2, the LMF acquires the UE positioning capability, Step 3: The LMF sends a New Radio (NR) Positioning Protocol A (NRPPa) message, Positioning Information Request (POSITIONING INFORMATION REQUEST), to the serving base station to request Pos SRS configuration information for the target UE; Step 4: The serving base station determines a Pos SRS configuration and sends the Pos SRS configuration to the target UE; Step 5. The serving base station sends the Pos SRS configuration to the LMF via the NRPPa message Positioning Information Response (POSITIONING INFORMATION RESPONSE); Step 6: For semi-persistent or aperiodic Pos SRS, the LMF requests the serving base station to activate the Pos SRS configuration via an NRPPa message, Positioning Activation Request, and activates the Pos SRS configuration, for example, via a Medium Access Control (MAC CE) or Downlink Control Information (DCI). After activation, the serving base station feeds back an NRPPa message, Positioning Activation Response, to confirm that the Pos SRS has been activated. Step 7: The LMF sends the Pos SRS configuration to the associated base station via a measurement request (MEASUREMENT REQUEST) message, which is an NRPPa message, to request the associated base station to perform SRS measurements based on the Pos SRS configuration; Step 8: The associated base station performs SRS measurement based on the configuration; Step 9: The associated base station feeds back the SRS measurement result via a Measurement Response, which is an NRPPa message; Step 10: The LMF sends a POSITIONING DEACTIVATION command, which is an NRPPa message, to the serving cell to deactivate or release the Pos SRS configuration.

[0024] In the uplink positioning flow shown in Figure 2, if the associated base station cannot obtain the SRS measurement result, it will feed back to the LMF an NRPPa message, MEASUREMENT FAILURE INDICATION, which may indicate that a requested item is temporarily not available. Specifically, the MEASUREMENT FAILURE INDICATION is sent by a Next Generation Radio Access Network (NG-RAN) node to indicate that a previously requested measurement cannot be re-reported. For example, the MEASUREMENT FAILURE INDICATION may have the information structure shown in Table 1 as follows:

[0025] [Table 1]

[0026] At this time, the LMF may request the serving base station to reconfigure the SRS based on the received measurement failure indication, and the base station may transmit a Positioning Information Update message to the LMF to transmit a Pos SRS configuration update. Specifically, if Pos SRS configuration information is included in this message, the LMF should consider it as the UE's latest Pos SRS configuration. Here, the NRPPa Transaction ID information in the measurement failure indication is used to associate the same positioning flow. Specifically, the Positioning Information Update message is sent by the NG-RAN node to the LMF to indicate that a change has occurred in the Pos SRS configuration. For example, the Positioning Information Update message may have the information structure shown in Table 2 below.

[0027] [Table 2]

[0028] As can be seen from the above, since the Pos SRS configuration in the related art is specific to the target UE (UE-specific), if a switch to a new serving cell or resume occurs while the UE is moving, the target base station (the base station corresponding to the new serving cell) may release the positioning (Pos) SRS configured by the original serving base station due to a resource configuration conflict, which may result in the related base station being unable to obtain Pos SRS measurement results thereafter. In this case, the related base station may feedback an SRS measurement failure, and the LMF may re-request a Pos SRS configuration from the target base station depending on the SRS measurement failure situation. Thus, for a target UE that needs to be positioned periodically or constantly, if the UE's movement range is relatively large, the Pos SRS will be reconfigured frequently, resulting in longer positioning delays.

[0029] Meanwhile, in an embodiment of the present application, for a UE for which an uplink positioning SRS has already been configured, the uplink positioning SRS configuration is exchanged between a source node, a target node, and an LMF corresponding to the original serving cell or a local cell during the UE's movement, thereby ensuring mobility in the positioning process and reducing the reconfiguration of the SRS.

[0030] It should be noted that the uplink positioning SRS may also be referred to as uplink positioning sounding reference signal, or may be abbreviated as uplink positioning reference signal, or may be referred to as uplink Pos SRS, and for ease of explanation, they will be collectively referred to as uplink positioning SRS in the following embodiments of the present application.

[0031] The following describes in detail the uplink positioning SRS configuration method, uplink positioning SRS configuration device, network side device and readable storage medium according to the embodiments of the present application through several embodiments and application scenarios thereof, in conjunction with the drawings.

[0032] Referring to FIG. 3, the execution body of the uplink positioning SRS configuration method according to the embodiment of the present application may be a first network side device, and as shown in FIG. 3, the uplink positioning SRS configuration method may include the following steps:

[0033] Step 301: In the process of a change in a serving cell or a local cell of a terminal, a first network side device sends uplink positioning SRS configuration related information to a second network side device, where the uplink positioning SRS configuration related information is used to assist the second network side device in configuring an uplink positioning SRS for the terminal.

[0034] In a specific implementation, the terminal configures an uplink positioning SRS. For example, the uplink positioning SRS is configured for the terminal by a first network side device at the request of a third network side device (which may be an LMF). The terminal needs to switch to or recover from a second network side device due to factors such as movement. Before this, the first network side device can send the uplink positioning SRS configuration-related information to the second network side device to assist the second network side device in configuring the uplink positioning SRS for the terminal based on this information. Thus, when the second network side device determines that the original uplink positioning SRS configured by the first network side device is available and the terminal completes switching to or recovery from the second network side device, it does not need to perform uplink positioning SRS reconfiguration, thereby reducing the frequency of uplink positioning SRS reconfiguration.

[0035] Here, the first network side device may be a network side device corresponding to the original serving cell or original local cell of the terminal, and the second network side device may be a target serving cell or target local cell to which the terminal should switch or recover. For example, if the original serving cell configures a first uplink positioning SRS for the terminal and the terminal moves into the coverage of the target serving cell, the terminal may perform a cell switch to switch to the target serving cell. Before or during the cell switch, the original serving cell may send SRS configuration-related information of the first uplink positioning SRS to the target serving cell, so that the target serving cell can determine whether to continue using the first uplink positioning SRS configuration.

[0036] In some embodiments, if the target serving cell determines that it can continue to use this first uplink positioning SRS, it will not perform uplink positioning SRS reconfiguration, thereby reducing the frequency of uplink positioning SRS reconfiguration and further achieving shorter positioning delay.

[0037] In some other embodiments, when the target serving cell determines that the first uplink positioning SRS is unavailable, it can perform uplink positioning SRS reconfiguration, and compared to the scheme in the related art in which the LMF needs to wait for feedback of uplink positioning SRS measurement failure from the associated base station so that it can re-request the target serving cell to perform uplink positioning SRS reconfiguration, the target serving cell can pre-determine the occasions when it needs to perform uplink positioning SRS reconfiguration, which can also shorten the positioning delay.

[0038] In one alternative embodiment, the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

[0039] In a specific implementation, during the process of changing the serving cell or the local cell, the first network side device may spontaneously send a switching request to the second network side device; or when the terminal initiates a Radio Resource Control (RRC) recovery (RRC resume) flow in the second network side device, the second network side device, upon receiving an RRC recovery request (RRCResumeRequest) message sent by the terminal, sends a RETRIEVE UE CONTEXT REQUEST message to the first network side device to request the terminal's context (UE Context), and the uplink positioning SRS configuration related information may be included in the switching request or UE Context.

[0040] In this embodiment, in the process of a change in the serving cell or local cell of a terminal, the previous serving cell or local cell of the terminal transmits uplink positioning SRS configuration related information to the new serving cell of the terminal, so that the new serving cell of the terminal can configure the uplink positioning SRS in advance using the uplink positioning SRS configuration related information, or can reuse the uplink positioning SRS configured by the previous serving cell or local cell of the terminal, which reduces the frequency of uplink positioning SRS reconfiguration and shortens the positioning delay.

[0041] Of course, in practical application, the uplink positioning SRS configuration related information may be transmitted by other messages, and is not specifically limited here.

[0042] In a first alternative embodiment, the first network side device sending uplink positioning SRS configuration related information to the second network side device comprises: The first network side device initiates a switching request for the terminal to a second network side device, where the switching request carries the uplink positioning SRS configuration related information.

[0043] In this embodiment, when a terminal performs a cell switch, the related switch request is multiplexed to transmit the uplink positioning SRS configuration related information, thereby avoiding the waste of resources caused by the first network side device using an independent message to send the uplink positioning SRS configuration related information to the second network side device.

[0044] In a second alternative embodiment, the first network side device sends uplink positioning SRS configuration related information to the second network side device, The method includes, when the first network side device receives a UE context search request message sent by the second network side device, sending a context of the terminal, including the uplink positioning SRS configuration related information, to the second network side device.

[0045] In this embodiment, during the process of the terminal recovering a cell, the terminal multiplexes a related UE context search request message and the terminal's context to transmit uplink positioning SRS configuration related information, thereby avoiding resource waste caused by the first network side device using an independent message to send uplink positioning SRS configuration related information to the second network side device.

[0046] Optionally, the uplink positioning SRS configuration related information is: Identifier information of the terminal; a first information field used for the terminal's current first uplink positioning SRS configuration; a second information field used to instruct the terminal to maintain the current first uplink positioning SRS configuration; Identifier information of the third network side device, where the first uplink positioning SRS configuration is a configuration generated by the first network side device after being requested by the third network side device; Session identifier information between the first network side device and the third network side device; and a third information field which is an uplink positioning SRS configuration request of the third network side device for generating the first information field.

[0047] Option 1: The first uplink positioning SRS configuration may be a configuration generated by the first network side device after being requested by the third network side device, where the third network side device may be an LMF.

[0048] Option 2: The maintenance instruction may be used to instruct the second network side device to perform uplink positioning SRS reconfiguration or maintain a first uplink positioning SRS configuration, where when the maintenance instruction is used to instruct the second network side device to maintain a first uplink positioning SRS configuration, the second network side device determines whether the first uplink positioning SRS configuration is available, and when it determines that it is available, continues to use the first uplink positioning SRS configuration, but performs SRS reconfiguration for the terminal only when the first uplink positioning SRS configuration is unavailable.

[0049] It should be mentioned that the maintenance instruction may have various types, for example, used to instruct the second network side device whether to enable uplink positioning SRS configuration maintenance, or used to instruct the second network side device whether the preference of uplink positioning SRS configuration maintenance is “TRUE”, etc.

[0050] In one alternative embodiment, when the uplink positioning SRS configuration maintenance instruction is used to enable uplink positioning SRS configuration maintenance, When the second network side device determines that the first uplink positioning SRS configuration is available, the second network side device sends a first update configuration to the third network side device according to identifier information of the third network side device, for updating a serving cell of the terminal; If the second network side device determines that the first uplink positioning SRS configuration is unavailable, the second network side device sends, based on the identifier information of the third network side device, to the third network side device, a second updated configuration indicating that the updated uplink positioning SRS configuration is empty and for updating the serving cell of the terminal.

[0051] In this embodiment, the second network side device may use uplink positioning SRS configuration maintenance to instruct whether to maintain the existing uplink positioning SRS configuration of the terminal. If the second network side device can maintain it, there is no need to reconfigure SRS and only the serving cell of the terminal needs to be updated. Accordingly, if the second network side device cannot maintain the existing uplink positioning SRS configuration of the terminal, the second network side device may notify the third network side device through a second update configuration. At this time, the third network side device may re-request the second network side device to configure a new uplink positioning SRS configuration for the terminal based on the received second update configuration.

[0052] In another alternative embodiment, if the uplink positioning SRS configuration maintenance indication is used to indicate that an uplink positioning SRS configuration maintenance preference is TRUE, When the second network side device determines that the first uplink positioning SRS configuration is available, the second network side device sends a third update configuration to the third network side device according to identifier information of the third network side device, for updating a serving cell of the terminal; If the second network side device determines that the first uplink positioning SRS configuration is unavailable, the second network side device generates a second uplink positioning SRS configuration based on the third information field, and sends a fourth update configuration to the third network side device based on identifier information of the third network side device, the fourth update configuration including the second uplink positioning SRS configuration and updating a serving cell of the terminal.

[0053] In this embodiment, the second network side device may use the uplink positioning SRS configuration maintenance preference to indicate whether to maintain the existing uplink positioning SRS configuration of the terminal. If the second network side device can maintain it, there is no need to reconfigure the uplink positioning SRS, and only the serving cell of the terminal needs to be updated. Accordingly, if the second network side device cannot maintain the existing uplink positioning SRS configuration of the terminal, the second network side device may generate a new uplink positioning SRS configuration for the terminal based on other information in the uplink positioning SRS configuration-related information and notify the third network side device of this new uplink positioning SRS configuration through a fourth update configuration. At this time, the third network side device may request related base stations in the terminal's positioning process to perform uplink positioning SRS measurement according to this new uplink positioning SRS configuration based on the received fourth update configuration.

[0054] Optionally, the first update configuration comprises: Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The second update configuration is Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The third update configuration is Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The fourth update configuration is: Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring the uplink positioning SRS updated by the second network side device.

[0055] It should be noted that the differences between the above two alternative embodiments are as follows: when the uplink positioning SRS configuration maintenance instruction is used to enable uplink positioning SRS configuration maintenance, if the second network side device determines that the first uplink positioning SRS configuration is unavailable, it indicates that the updated uplink positioning SRS configuration is empty; whereas when the uplink positioning SRS configuration maintenance instruction is used to indicate that uplink positioning SRS configuration maintenance preference is TRUE, if the second network side device determines that the first uplink positioning SRS configuration is unavailable, it regenerates a second uplink positioning SRS configuration based on the third information field and instructs the third network side device to do so.

[0056] Option 3: The identifier information of the third network side device and / or the session identifier information between the first network side device and the third network side device may be used by the second network side device to determine a session with the third network side device and / or the third network side device, so as to send at least one of the first updated configuration, the second updated configuration, the third updated configuration, the fourth updated configuration, etc. to the third network side device.

[0057] Option 4: When the second network side device determines that the first uplink positioning SRS configuration in the first information field is unavailable, the above-mentioned uplink positioning SRS configuration request of the third network side device for generating the first information field may be used to regenerate a new uplink positioning SRS configuration based on the uplink positioning SRS configuration request of the third network side device for generating the first information field, so as to meet the needs of the terminal and the third network side device.

[0058] In one alternative embodiment, before the first network side device sends uplink positioning SRS configuration related information to the second network side device, the method includes: The method further includes: when the first network side device receives an uplink positioning SRS configuration request from the third network side device, configuring the first uplink positioning SRS configuration of the terminal; Here, the uplink positioning SRS configuration related information includes at least the first uplink positioning SRS configuration.

[0059] In this embodiment, the first network side device pre-configures the first uplink positioning SRS configuration for the terminal according to the request of the third network side device, and in the process of the terminal switching or recovering a cell, the first network side device sends the first uplink positioning SRS configuration to the second network side device to determine whether the second network side device can continue to use the first uplink positioning SRS configuration.

[0060] Optionally, the first information field comprises: First configuration information (e.g., resource set ID, resource ID list) for configuring resource set identifier information of the uplink positioning SRS; Second configuration information (e.g., resource ID) for configuring resource identifier information of the uplink positioning SRS; Third configuration information for configuring a time domain resource type of the uplink positioning SRS (e.g., periodic, aperiodic, or semi-static); Fourth configuration information (e.g., a power control reference signal or a power control reference value) for configuring power control information of the uplink positioning SRS; Fifth configuration information for configuring the number of ports of the uplink positioning SRS; Sixth configuration information (e.g., period, initial code, code number, repetition number, etc.) for configuring the time domain resource of the uplink positioning SRS; Seventh configuration information (e.g., initial subcarrier position, frequency domain bandwidth, etc.) for configuring frequency domain resources of the uplink positioning SRS; and eighth configuration information for configuring the spatial relationship of the uplink positioning SRS (for example, the spatial relationship with a Synchronization Signal and PBCH block (SSB)).

[0061] Optionally, the second information field comprises: first maintenance information for enabling uplink positioning SRS configuration maintenance; and second maintenance information for indicating that uplink positioning SRS configuration maintenance is preferred.

[0062] Here, the first maintenance information may be an enable value, and this enable value may be TRUE or FALSE. Thus, if this enable value is true, it indicates that uplink positioning SRS configuration maintenance is enabled, and if this enable value is false, it indicates that uplink positioning SRS configuration maintenance is not enabled. Here, if uplink positioning SRS configuration maintenance is not enabled, the second network side device may directly perform uplink positioning SRS reconfiguration based on the information in the third information field, or directly instruct the third network side device that the updated uplink positioning SRS configuration is empty. Thus, the third network side device may request a new uplink positioning SRS configuration from the second network side device when receiving an uplink positioning SRS measurement failure fed back from an associated base station according to the flow in the related art.

[0063] In addition, the second maintenance information may be a preference value, and this preference value may be TRUE or FALSE (true or false). Thus, if this preference value is true, it indicates that it is preferable to maintain the first uplink positioning SRS configuration, and if this preference value is false, it indicates that it is not preferable to maintain the first uplink positioning SRS configuration. Here, if it is not preferable to maintain the first uplink positioning SRS configuration, the second network side device may directly perform uplink positioning SRS reconfiguration based on the information in the third information field.

[0064] Optionally, the third information field comprises: first request information for requesting uplink positioning SRS resource set identifier information; second request information for requesting uplink positioning SRS resource identifier information; third request information for requesting an uplink positioning SRS time domain resource type; fourth request information for requesting uplink positioning SRS time domain resources; Fifth request information for requesting uplink positioning SRS frequency domain resources; and and sixth request information for requesting an uplink positioning SRS spatial association relationship.

[0065] The above first to sixth request information have similar meanings and functions to the first to third configuration information and the sixth to eighth configuration information, respectively, and will not be further described here.

[0066] In an embodiment of the present application, a first network side device transmits uplink positioning SRS configuration-related information to a second network side device, where the uplink positioning SRS configuration-related information is used to assist the second network side device in configuring an uplink positioning SRS for the terminal. In this way, when a situation such as a serving cell switching or recovery (Resume) occurs during a terminal's movement, the original serving cell can transmit uplink positioning SRS configuration-related information to a target serving cell after switching or recovery before or during the serving cell switching or recovery to assist the target serving cell in configuring an uplink positioning SRS for the terminal. This avoids a problem in the related art that, if the target serving cell decides to release the uplink positioning SRS configured by the original serving cell after switching to the target serving cell, the LMF can request the target serving cell to reconfigure the uplink positioning SRS only when it receives measurement failure feedback from an associated base station. Therefore, the embodiments of the present application can reduce the uplink positioning SRS reconfiguration probability and shorten the positioning delay.

[0067] Referring to FIG. 4, there is shown a flowchart of another method for configuring an uplink positioning SRS according to an embodiment of the present application. The difference between the embodiment of the method for configuring an uplink positioning SRS shown in FIG. 4 and the embodiment of the method for configuring an uplink positioning SRS shown in FIG. 3 is that the embodiment of the method for configuring an uplink positioning SRS shown in FIG. 4 is executed by a second network side device, while the embodiment of the method for configuring an uplink positioning SRS shown in FIG. 3 is executed by a first network side device.

[0068] As shown in FIG. 4, this another uplink positioning SRS configuration method may include the following steps:

[0069] Step 401: In the process of a change in the serving cell or local cell of a terminal, a second network side device receives uplink positioning SRS configuration related information from a first network side device.

[0070] Step 402: The second network side device configures an uplink positioning SRS configuration for the terminal based on the uplink positioning SRS configuration related information, where the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS for the terminal.

[0071] In a specific implementation, the specific meaning of the uplink positioning SRS configuration related information is the same as the meaning of the uplink positioning SRS configuration related information in the method embodiment shown in FIG. 3, and will not be further described here.

[0072] In addition, the second network side device configuring the uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration-related information may include the second network side device reconfiguring the uplink positioning SRS of the terminal based on the uplink positioning SRS configuration-related information to shorten the positioning delay, or, if it determines that the already configured uplink positioning SRS configuration of the terminal is usable, continuing to use the uplink positioning SRS configuration to reduce the frequency of uplink positioning SRS reconfiguration and achieve the effect of shortening the positioning delay.

[0073] In one alternative embodiment, the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

[0074] In this embodiment, in the process of a change in the serving cell or local cell of the terminal, the second network side device receives uplink positioning SRS configuration related information from the first network side device, and the second network side device can start configuring uplink positioning SRS for the terminal in advance based on the acquired uplink positioning SRS configuration related information before the terminal completes the cell change, or can determine in advance whether to continue using the existing uplink positioning SRS configuration of the terminal.

[0075] In one alternative embodiment, the second network side device receiving uplink positioning SRS configuration related information from the first network side device includes: The second network side device receives a switching request for the terminal from the first network side device, where the switching request carries the uplink positioning SRS configuration related information.

[0076] In another alternative embodiment, the second network side device receiving uplink positioning SRS configuration related information from the first network side device comprises: The method includes the second network side device sending a UE context search request message to the first network side device, and receiving a context of the terminal sent by the first network side device, where the context of the terminal includes the uplink positioning SRS configuration related information.

[0077] In this embodiment, the uplink positioning SRS configuration related information may be carried in a response message to the associated switching request or UE context search request message, thereby saving resources and flows for transmitting the uplink positioning SRS configuration related information.

[0078] Optionally, the uplink positioning SRS configuration related information is: Identifier information of the terminal; a first information field used for the terminal's current first uplink positioning SRS configuration; a second information field used to instruct the terminal to maintain the current first uplink positioning SRS configuration; Identifier information of the third network side device, where the first uplink positioning SRS configuration is a configuration generated by the first network side device after being requested by the third network side device; Session identifier information between the first network side device and the third network side device; and a third information field which is an uplink positioning SRS configuration request of the third network side device for generating the first information field.

[0079] In one alternative embodiment, when the uplink positioning SRS configuration maintenance instruction is used to enable uplink positioning SRS configuration maintenance, the second network side device configuring the uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration related information includes: When the second network side device determines that the first uplink positioning SRS configuration is available, the second network side device sends a first update configuration to the third network side device based on identifier information of the third network side device, for updating a serving cell of the terminal; If the second network side device determines that the first uplink positioning SRS configuration is unavailable, the second network side device instructs the third network side device based on identifier information of the third network side device to indicate that the updated uplink positioning SRS configuration is empty and sends a second updated configuration to update a serving cell of the terminal.

[0080] In this embodiment, the second network side device may use uplink positioning SRS configuration maintenance to instruct whether to maintain the existing uplink positioning SRS configuration of the terminal. If the second network side device can maintain it, there is no need to reconfigure the uplink positioning SRS and only the serving cell of the terminal needs to be updated. Accordingly, if the second network side device cannot maintain the existing uplink positioning SRS configuration of the terminal, the second network side device may notify the third network side device through a second update configuration. At this time, the third network side device may re-request the second network side device to configure a new uplink positioning SRS configuration for the terminal based on the received second update configuration.

[0081] In another alternative embodiment, when the uplink positioning SRS configuration maintenance instruction is used to indicate that an uplink positioning SRS configuration maintenance preference is TRUE, the second network side device configuring an uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration related information includes: When the second network side device determines that the first uplink positioning SRS configuration is available, the second network side device sends a third update configuration to the third network side device according to identifier information of the third network side device, for updating a serving cell of the terminal; If the second network side device determines that the first uplink positioning SRS configuration is unavailable, the second network side device generates a second uplink positioning SRS configuration based on the third information field, and sends a fourth update configuration to the third network side device based on identifier information of the third network side device, the fourth update configuration including the second uplink positioning SRS configuration and updating a serving cell of the terminal.

[0082] In this embodiment, the second network side device may use the uplink positioning SRS configuration maintenance preference to indicate whether to maintain the existing uplink positioning SRS configuration of the terminal. If the second network side device can maintain it, there is no need to reconfigure the uplink positioning SRS, and only the serving cell of the terminal needs to be updated. Accordingly, if the second network side device cannot maintain the existing uplink positioning SRS configuration of the terminal, the second network side device may generate a new uplink positioning SRS configuration for the terminal based on other information in the uplink positioning SRS configuration-related information and notify the third network side device of this new uplink positioning SRS configuration through a fourth update configuration. At this time, the third network side device may request related base stations in the terminal's positioning process to perform uplink positioning SRS measurement according to this new uplink positioning SRS configuration based on the received fourth update configuration.

[0083] In one alternative embodiment, when the second network side device generates a second uplink positioning SRS configuration based on the uplink positioning SRS configuration related information, the second network side device configures the uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration related information, The second network side device transmits the second uplink positioning SRS configuration to the terminal via the first network side device; Or, The second network side device sends the second uplink positioning SRS configuration to the terminal.

[0084] In a specific implementation, before completing the cell switch, the second network side device may transfer the second uplink positioning SRS configuration to the terminal through the first network side device, for example, carrying the second uplink positioning SRS configuration in a HandoverCommand message.In addition, during the process of completing the cell switch or cell recovery, the second network side device may directly send the second uplink positioning SRS configuration to the terminal, for example, carrying the second uplink positioning SRS configuration in an RRCResume message.

[0085] In this embodiment, the second network side device may inform the terminal of the second uplink positioning SRS configuration before completing cell switching or after completing cell switching or cell recovery, so that the terminal transmits a positioning SRS according to the second uplink positioning SRS configuration.

[0086] Optionally, the first update configuration comprises: Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The second update configuration is Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The third update configuration is Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The fourth update configuration is: Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring the uplink positioning SRS updated by the second network side device.

[0087] Optionally, the fourth information field comprises: First configuration information for configuring resource set identifier information of an uplink positioning SRS; second configuration information for configuring resource identifier information of an uplink positioning SRS; Third configuration information for configuring a time domain resource type of the uplink positioning SRS; fourth configuration information for configuring power control information of the uplink positioning SRS; Fifth configuration information for configuring the number of ports of the uplink positioning SRS; sixth configuration information for configuring a time domain resource of the uplink positioning SRS; and Seventh configuration information for configuring frequency domain resources of the uplink positioning SRS; and and eighth configuration information for configuring a spatial relationship of the uplink positioning SRS.

[0088] The uplink positioning SRS configuration method performed by the second network side device according to the embodiment of the present application can be combined with the uplink positioning SRS configuration method performed by the first network side device as shown in FIG. 3 to jointly achieve the effects of reducing the uplink positioning SRS reconfiguration probability and shortening the positioning delay.

[0089] For ease of understanding, the following two specific embodiments are taken as examples to illustrate the uplink positioning SRS configuration method according to the embodiments of the present application.

[0090] Specific Example 1 Step 1a: The LMF requests an uplink positioning SRS configuration from the first network side device, carrying a Requested SRS configuration request.

[0091] Step 2a: the first network side device determines a first uplink positioning SRS configuration based on the Requested SRS, and sends the first uplink positioning SRS configuration to the target UE and the LMF.

[0092] In step 3a, the UE enters an RRC inactive (INACTIVE) state due to no transaction within a certain period of time and stores the first uplink positioning SRS configuration. The UE reselects to locate in the second network side device due to mobility, and when a positioning request is triggered (e.g., an event trigger), the UE initiates an RRC resume process in the second network side device. After receiving the RRC Resume Request message from the UE, the second network side device sends a RETRIEVE UE CONTEXT REQUEST message to the first network side device to request the UE Context.

[0093] Step 4a: The first network side device sends a RETRIEVE UE CONTEXT RESPONSE to the second network side device, where the RETRIEVE UE CONTEXT RESPONSE includes a first uplink positioning SRS configuration, an uplink positioning SRS configuration maintenance request instruction, a Requested SRS configuration request sent by the LMF to configure the first uplink positioning SRS configuration, an LMF routing ID, an NRPPa Transaction ID, etc.

[0094] Step 5a: if the maintenance request indicates that the uplink positioning SRS needs to be maintained, the second network side device determines whether the first uplink positioning SRS configuration can be continued (for example, based on the already configured uplink resources). If the first uplink positioning SRS configuration can be continued, include the first uplink positioning SRS configuration in the configuration in the RRC Resume. If the first uplink positioning SRS configuration cannot be continued, generate a new second uplink positioning SRS configuration based on the Requested SRS configuration and include the second uplink positioning SRS configuration in the configuration in the RRC Resume.

[0095] Step 6a: If the second network side device generates a second uplink positioning SRS configuration, the second network side device sends an uplink positioning SRS configuration update to the LMF based on the LMF Routing ID and NRPPa Transaction ID in step 4a.

[0096] Step 7a, the LMF sends an SRS measurement request to the associated base station based on the second uplink positioning SRS configuration.

[0097] Specific Example 2 Step 1b: The LMF requests an uplink positioning SRS configuration from the first network side device, carrying a Requested SRS configuration request.

[0098] Step 2b: the first network side device determines a first uplink positioning SRS configuration based on the Requested SRS, and sends the first uplink positioning SRS configuration to the target UE and the LMF.

[0099] Step 3b: the UE triggers a measurement report of switching to the second network side equipment (network side equipment corresponding to the target serving cell) due to the movement, and sends the measurement report to the first network side equipment.

[0100] Step 4b: The first network side device sends a handover request (HANDOVER REQUEST) to the second network side device, where the handover request includes a first uplink positioning SRS configuration, an uplink positioning SRS configuration maintenance request instruction, a Requested SRS configuration request sent by the LMF to configure the first uplink positioning SRS configuration, an LMF routing ID, an NRPPa Transaction ID, etc.

[0101] Step 5b: if the maintenance request indicates that the uplink positioning SRS needs to be maintained, the second network side device determines whether the first uplink positioning SRS configuration can be continued (e.g., based on the already configured uplink resources), and if so, includes the first uplink positioning SRS configuration in the reconfiguration in the HandoverCommand; if not, generates a new second uplink positioning SRS configuration based on the Requested SRS configuration, and includes the second uplink positioning SRS configuration in the reconfiguration in the HandoverCommand.

[0102] Step 6b: the first network side device sends RRC reconfiguration information to the UE, the RRC reconfiguration information including a second uplink positioning SRS configuration determined by the second network side device, and the UE switches to the second network side device via a Physical Random Access Channel (RACH) based on the RRC reconfiguration information.

[0103] Step 7b, the LMF sends an SRS measurement request to the associated base station based on the second uplink positioning SRS configuration.

[0104] It should be noted that in the uplink positioning SRS configuring method according to the embodiment of the present application, the execution body may be an uplink positioning SRS configuring device or a control module for executing the uplink positioning SRS configuring method in the uplink positioning SRS configuring device. In the embodiment of the present application, the uplink positioning SRS configuring device according to the embodiment of the present application will be described by taking the uplink positioning SRS configuring device as an example to execute the uplink positioning SRS configuring method.

[0105] Referring to FIG. 5, a first type of uplink positioning SRS configuration device 500 according to an embodiment of the present application may be used in a first network side device, and the first type of uplink positioning SRS configuration device 500 includes: a first sending module 501 for sending uplink positioning SRS configuration related information to a second network side device during a process of a terminal's serving cell or local cell changing; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal.

[0106] Optionally, the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

[0107] Optionally, the first sending module 501 specifically: It is used to initiate a switching request for the terminal to a second network side device, where the switching request carries the uplink positioning SRS configuration related information.

[0108] Optionally, the first sending module 501 specifically: When a UE context search request message sent by the second network side device is received, the UE context including the uplink positioning SRS configuration related information is sent to the second network side device.

[0109] Optionally, the uplink positioning SRS configuration related information is: Identifier information of the terminal; a first information field used for the terminal's current first uplink positioning SRS configuration; a second information field used to instruct the terminal to maintain the current first uplink positioning SRS configuration; Identifier information of the third network side device, where the first uplink positioning SRS configuration is a configuration generated by the first network side device after being requested by the third network side device; Session identifier information between the first network side device and the third network side device; and a third information field which is an uplink positioning SRS configuration request of the third network side device for generating the first information field.

[0110] Optionally, the uplink positioning SRS configuration device 500: Further comprising: a second configuration module for configuring the first uplink positioning SRS configuration of the terminal when receiving an uplink positioning SRS configuration request of the third network side device; Here, the uplink positioning SRS configuration related information includes at least the first uplink positioning SRS configuration.

[0111] Optionally, the first information field comprises: First configuration information for configuring resource set identifier information of an uplink positioning SRS; second configuration information for configuring resource identifier information of an uplink positioning SRS; Third configuration information for configuring a time domain resource type of the uplink positioning SRS; fourth configuration information for configuring power control information of the uplink positioning SRS; Fifth configuration information for configuring the number of ports of the uplink positioning SRS; sixth configuration information for configuring a time domain resource of the uplink positioning SRS; and Seventh configuration information for configuring frequency domain resources of the uplink positioning SRS; and and eighth configuration information for configuring a spatial relationship of the uplink positioning SRS.

[0112] Optionally, the second information field comprises: first maintenance information for enabling uplink positioning SRS configuration maintenance; and second maintenance information for indicating that uplink positioning SRS configuration maintenance is preferred.

[0113] Optionally, the third information field comprises: first request information for requesting uplink positioning SRS resource set identifier information; second request information for requesting uplink positioning SRS resource identifier information; third request information for requesting an uplink positioning SRS time domain resource type; fourth request information for requesting uplink positioning SRS time domain resources; Fifth request information for requesting uplink positioning SRS frequency domain resources; and and sixth request information for requesting an uplink positioning SRS spatial association relationship.

[0114] The first type of uplink positioning SRS configuration device 500 according to the embodiment of the present application can implement each process implemented by the embodiment of the method shown in FIG. 3 and achieve the same technical effects, and will not be further described here to avoid repetition.

[0115] Referring to FIG. 6, a second type of uplink positioning SRS configuration device 600 according to an embodiment of the present application may be used in a second network side device, and the second type of uplink positioning SRS configuration device 600 may include: A first receiving module 601 for receiving uplink positioning SRS configuration related information from a first network side device during a process in which a serving cell or a local cell of a terminal changes; a first configuration module 602 for configuring an uplink positioning SRS configuration of the terminal according to the uplink positioning SRS configuration related information; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal.

[0116] Optionally, the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

[0117] Optionally, the first receiving module 601 specifically includes: Used to receive a switching request for the terminal from the first network side device, where the switching request carries the uplink positioning SRS configuration related information.

[0118] Optionally, the first receiving module 601 specifically includes: Used to send a UE context search request message to the first network side device and receive the terminal context sent by the first network side device, where the terminal context includes the uplink positioning SRS configuration related information.

[0119] Optionally, the uplink positioning SRS configuration related information is: Identifier information of the terminal; a first information field used for the terminal's current first uplink positioning SRS configuration; a second information field used to instruct the terminal to maintain the current first uplink positioning SRS configuration; Identifier information of the third network side device, where the first uplink positioning SRS configuration is a configuration generated by the first network side device after being requested by the third network side device; Session identifier information between the first network side device and the third network side device; and a third information field which is an uplink positioning SRS configuration request of the third network side device for generating the first information field.

[0120] Optionally, when the uplink positioning SRS configuration maintenance instruction is used to enable uplink positioning SRS configuration maintenance, the first configuration module 602: a first sending unit for sending a first update configuration to the third network side device, for updating a serving cell of the terminal, according to identifier information of the third network side device, when the second network side device determines that the first uplink positioning SRS configuration is available; and a second sending unit for, when the second network side device determines that the first uplink positioning SRS configuration is unavailable, sending to the third network side device, based on identifier information of the third network side device, a second updated configuration that indicates that the updated uplink positioning SRS configuration is empty and that updates a serving cell of the terminal.

[0121] Optionally, when the uplink positioning SRS configuration maintenance indication is used to indicate that an uplink positioning SRS configuration maintenance preference is TRUE, the first configuration module 602: a third sending unit for sending, to the third network side device, a third update configuration for updating a serving cell of the terminal according to identifier information of the third network side device when the second network side device determines that the first uplink positioning SRS configuration is available; and a fourth sending unit for, when the second network side device determines that the first uplink positioning SRS configuration is unavailable, generating a second uplink positioning SRS configuration based on the third information field, and sending a fourth update configuration to the third network side device based on identifier information of the third network side device, the fourth update configuration including the second uplink positioning SRS configuration and updating a serving cell of the terminal.

[0122] Optionally, the first update configuration comprises: Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The second update configuration is Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The third update configuration is Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring an uplink positioning SRS updated by the second network side device; Or, The fourth update configuration is: Identifier information of the terminal; Identifier information of the second network side device; Session identifier information between the first network side device and the third network side device; and a fourth information field used for configuring the uplink positioning SRS updated by the second network side device.

[0123] Optionally, the fourth information field comprises: First configuration information for configuring resource set identifier information of an uplink positioning SRS; second configuration information for configuring resource identifier information of an uplink positioning SRS; Third configuration information for configuring a time domain resource type of the uplink positioning SRS; fourth configuration information for configuring power control information of the uplink positioning SRS; Fifth configuration information for configuring the number of ports of the uplink positioning SRS; sixth configuration information for configuring a time domain resource of the uplink positioning SRS; and Seventh configuration information for configuring frequency domain resources of the uplink positioning SRS; and and eighth configuration information for configuring a spatial relationship of the uplink positioning SRS.

[0124] Optionally, when the second network side device generates a second uplink positioning SRS configuration according to the uplink positioning SRS configuration related information, the first configuration module 602 specifically: The first network side device transmits the second uplink positioning SRS configuration to the terminal; Or, Used to transmit the second uplink positioning SRS configuration to the terminal.

[0125] The second type of uplink positioning SRS configuration device 600 according to the embodiment of the present application can implement each process implemented by the embodiment of the method shown in FIG. 4 and achieve the same technical effects, and will not be further described here to avoid repetition.

[0126] Optionally, as shown in FIG. 7, an embodiment of the present application further provides a network side device 700, which includes a processor 701, a memory 702, and a program or instruction stored in the memory 702 and operable on the processor 701. For example, if the network side device 700 is a first network side device, when the program or instruction is executed by the processor 701, it can realize each process of the method embodiment shown in FIG. 3 and achieve the same technical effect. If the network side device 700 is a second network side device, when the program or instruction is executed by the processor 701, it can realize each process of the method embodiment shown in FIG. 4 and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0127] An embodiment of the present application further provides a network side device, including: a processor and a communication interface; the communication interface is used for sending uplink positioning SRS configuration related information to a second network side device, where the uplink positioning SRS configuration related information is used for assisting the second network side device to configure an uplink positioning SRS of the terminal; Or, The communication interface is used for receiving uplink positioning SRS configuration related information from a first network side device, and the processor is used for configuring an uplink positioning SRS configuration of a terminal based on the uplink positioning SRS configuration related information, where the uplink positioning SRS configuration related information is used for assisting the second network side device in configuring an uplink positioning SRS of the terminal.

[0128] This embodiment of the network side device corresponds to the method embodiment of the first network side device or the second network side device, and the implementation processes and realization methods of the method embodiments can all be applied to this embodiment of the network side device and can achieve the same technical effects.

[0129] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 8, the network side device 800 includes an antenna 801, a radio frequency device 802, and a baseband device 803. The antenna 801 and the radio frequency device 802 are connected to each other. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be transmitted and transmits it to the radio frequency device 802, and the radio frequency device 802 processes the received information and then transmits it through the antenna 801.

[0130] The above frequency band processing device may be located in a baseband device 803, and the method performed by the network side equipment in the above embodiments may be implemented in the baseband device 803, which includes a processor 804 and a memory 805.

[0131] The baseband device 803 may include, for example, at least one baseband board, on which multiple chips are installed, and as shown in FIG. 8, one of the chips is, for example, a processor 804, which is connected to a memory 805, and calls the program in the memory 805 to perform the operation of the network side device shown in the above embodiment of the method.

[0132] The baseband device 803 may further include a network interface 806, which is used to exchange information with the radio frequency device 802, and this interface may be, for example, a Common Public Radio Interface (CPRI).

[0133] Specifically, the network side device of the embodiment of the present application further includes instructions or programs stored in memory 805 and run on processor 804, and processor 804 can call the instructions or programs in memory 805 to execute the methods performed by each module shown in Figure 5 or Figure 6, and achieve the same technical effects, which will not be described further here to avoid repetition.

[0134] An embodiment of the present application further provides a readable storage medium, which stores a program or instruction, and when the program or instruction is executed by a processor, it can realize each process of the method embodiment shown in FIG. 3 or FIG. 4 and achieve the same technical effect, which will not be further described here to avoid repetition.

[0135] The processor may be the processor in the terminal described in the above embodiment. The readable storage medium may include a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0136] An embodiment of the present application further provides a chip, the chip including a processor and a communication interface, the communication interface coupled to the processor, the processor is used to run a program or instruction to realize each process of the method embodiment shown in FIG. 3 or FIG. 4, and can achieve the same technical effect, and in order to avoid repetition of description, it will not be further described here.

[0137] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, or system-on-chips.

[0138] An embodiment of the present application further provides a computer program product, which is stored in a non-transitory storage medium, and which can be executed by at least one processor to realize each process of the method embodiment shown in FIG. 3 or FIG. 4 and achieve the same technical effects, and will not be further described here to avoid repetition.

[0139] The embodiments of the present application further provide a communication device, which is configured to implement each process of the method embodiments shown in Figure 3 or Figure 4 as described above, and can achieve the same technical effects, and will not be further described here to avoid repetition of description.

[0140] It should be noted that, in this specification, the terms "comprise," "include," "includes," or any other variations thereof are intended to cover the non-exclusive "comprise," whereby a process, method, article, or apparatus comprising a set of elements not only includes those elements, but also other elements not expressly listed or inherent in such process, method, article, or apparatus. Absent further limitations, an element defined by the phrase "comprises one of" does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising that element. It should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in the reverse order based on the functions involved. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to some examples may be combined in other examples.

[0141] As will be apparent to those skilled in the art from the above description of the embodiments, the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical solution of the present application, in substance or in part contributing to the related art, may be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, network side device, etc.) to execute the methods described in each embodiment of the present application.

[0142] Although the embodiments of the present application have been described above in conjunction with the drawings, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the teachings of the present application into account and implement many forms without departing from the spirit and scope of the claims, all of which fall within the scope of protection of the present application.

Claims

1. An uplink positioning reference signal (SRS) configuration method, comprising: In a process of changing a serving cell or a local cell of a terminal from an original serving cell or an original local cell to a target serving cell or a target local cell, a first network side device corresponding to the original serving cell or the original local cell sends uplink positioning SRS configuration related information to a second network side device corresponding to the target serving cell or the target local cell; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal, an uplink positioning reference signal (SRS) configuration method.

2. 2. The method according to claim 1, wherein the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

3. In the process of a change in the serving cell of the terminal, the first network side device transmits uplink positioning SRS configuration related information to the second network side device, 3. The method of claim 1, comprising: the first network side device initiating a switching request for the terminal to a second network side device, wherein the switching request carries the uplink positioning SRS configuration related information.

4. In the process of a change in the UE's location cell, the first network side device sends uplink positioning SRS configuration related information to the second network side device; 3. The method according to claim 1, further comprising: transmitting, to the second network side device, a context of the terminal including the uplink positioning SRS configuration related information, when the first network side device receives a UE context search request message transmitted by the second network side device.

5. The uplink positioning SRS configuration related information is Identifier information of the terminal; a first information field used for the terminal's current first uplink positioning SRS configuration; a second information field used to instruct maintenance of the current first uplink positioning SRS configuration of the terminal; Identifier information of the third network side device, where the first uplink positioning SRS configuration is a configuration generated by the first network side device after being requested by the third network side device; Session identifier information between the first network side device and the third network side device; a routing identifier Routing ID of the third network side device; A New Radio Positioning Protocol A transaction identifier NRPPa Transaction ID between the first network side device and the third network side device; and a third information field for reconfiguring an uplink positioning SRS.

6. An uplink positioning reference signal (SRS) configuring device used in a first network side device corresponding to an original serving cell or an original in-range cell, comprising: a first transmitting module for transmitting uplink positioning SRS configuration related information to a second network side device corresponding to the target serving cell or the target local cell in a process in which a serving cell or a local cell of a terminal changes from an original serving cell or an original local cell to a target serving cell or a target local cell; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal, an uplink positioning reference signal SRS configuration device.

7. 7. The device according to claim 6, wherein the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

8. An uplink positioning reference signal (SRS) configuration method, comprising: In a process in which a serving cell or a local cell of a terminal changes from an original serving cell or an original local cell to a target serving cell or a target local cell, a second network side device corresponding to the target serving cell or the target local cell receives uplink positioning SRS configuration related information from a first network side device corresponding to the original serving cell or the original local cell; The second network side device configures an uplink positioning SRS configuration of the terminal according to the uplink positioning SRS configuration related information; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal, an uplink positioning reference signal (SRS) configuration method.

9. The method according to claim 8, wherein the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

10. In a process in which a serving cell of a terminal is changed, the second network side device receives uplink positioning SRS configuration related information from the first network side device, 10. The method according to claim 8, further comprising: the second network side device receiving a switching request for the terminal from the first network side device, wherein the switching request carries the uplink positioning SRS configuration related information.

11. In the process of a change in the UE's location cell, the second network side device receives uplink positioning SRS configuration related information from the first network side device; 10. The method according to claim 8, further comprising: the second network side equipment sending a UE context search request message to the first network side equipment; and receiving a context of the terminal sent by the first network side equipment, wherein the context of the terminal includes the uplink positioning SRS configuration related information.

12. The uplink positioning SRS configuration related information is Identifier information of the terminal; a first information field used for the terminal's current first uplink positioning SRS configuration; a second information field used to instruct maintenance of the current first uplink positioning SRS configuration of the terminal; Identifier information of the third network side device, where the first uplink positioning SRS configuration is a configuration generated by the first network side device after being requested by the third network side device; Session identifier information between the first network side device and the third network side device; a routing identifier Routing ID of the third network side device; A New Radio Positioning Protocol A transaction identifier NRPPa Transaction ID between the first network side device and the third network side device; and a third information field for reconfiguring an uplink positioning SRS.

13. An uplink positioning reference signal (SRS) configuration device used in a second network side device corresponding to a target serving cell or a target location cell, comprising: A first receiving module for receiving uplink positioning SRS configuration related information from a first network side device corresponding to the original serving cell or the original local area cell in a process in which a serving cell or a local area cell of a terminal changes from the original serving cell or the original local area cell to a target serving cell or the target local area cell; a first configuration module for configuring an uplink positioning SRS configuration of the terminal based on the uplink positioning SRS configuration related information; Here, the uplink positioning SRS configuration related information is used to assist the second network side device in configuring the uplink positioning SRS of the terminal, an uplink positioning reference signal SRS configuration device.

14. The device according to claim 13, wherein the first network side device is a network side device corresponding to a serving cell or a local cell of the terminal before the change, and the second network side device is a network side device corresponding to a serving cell or a local cell of the terminal after the change.

15. The first receiving module specifically includes: The apparatus according to claim 13 or 14, adapted to receive a switching request for the terminal from the first network side device, wherein the switching request carries the uplink positioning SRS configuration related information.

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