WO2024032378A1

WO2024032378A1 - Method for sl positioning, system and base station

Info

Publication number: WO2024032378A1
Application number: PCT/CN2023/109594
Authority: WO
Inventors: 彭硕; 毕奇; 蒋峥
Original assignee: 中国电信股份有限公司
Priority date: 2022-08-09
Filing date: 2023-07-27
Publication date: 2024-02-15
Also published as: CN117676796A

Abstract

The present disclosure relates to a method for SL positioning, a system, a base station and a computer-readable storage medium, and relates to the technical field of communications. The method for SL positioning is executed by a base station, and comprises: receiving positioning request information corresponding to SL positioning of a target user equipment (UE), the positioning request information indicating at least one associated UE related to the SL positioning; according to the positioning request information, generating in a network scheduling mode the configuration information of a PC5 wireless resource used for the SL positioning; and at least sending to each associated UE the positioning request information and the information among the configuration information of the PC5 wireless resource related to each associated UE.

Description

Method, system and base station for SL positioning

Cross-references to related applications

This application is based on the application with CN application number 202210948826.5 and the filing date is August 9, 2022, and claims its priority. The disclosure content of the CN application is hereby incorporated into this application as a whole.

Technical field

The present disclosure relates to the field of communication technology, and in particular to methods and systems for SL positioning, base stations, and computer-storable media.

Background technique

Currently, 3GPP (3rd Generation Partnership Project) is studying communication between user equipment (User Equipment, UE) and the technology for user equipment to indirectly communicate with base stations through relay equipment.

3GPP TS 23.287 and TS 23.304 standards respectively define V2X (Vehicle to Everything) communication and ProSe (Proximity Services, proximity services) on PC5 reference point for NG-RAN (NG Radio Access Network, NG wireless access network) ) service authorization solution.

In the related technology, the base station directly locates the user equipment on the Uu interface.

Contents of the invention

According to a first aspect of the present disclosure, a method for sidelink SL positioning is provided, which is performed by a base station and includes: receiving positioning request information corresponding to SL positioning of a target user equipment UE, wherein the positioning request The information indicates at least one associated UE related to the SL positioning; according to the positioning request information, in network scheduling mode, generate configuration information of PC5 wireless resources for the SL positioning; send at least the positioning request information and Information related to each associated UE in the configuration information of the PC5 radio resources is provided to each associated UE.

In some embodiments, the at least one associated UE includes a participating UE that assists the target UE in performing SL positioning, and the configuration information of the PC5 radio resources includes the configuration information of the PC5 radio resources of the target UE and the participating UE. , when the target UE accesses the base station, the at least one associated UE further includes the target UE, wherein the at least sending the positioning request information and the PC5 radio resource The information related to each associated UE in the configuration information to each associated UE includes: when the target UE accesses the base station, at least sending the positioning request information related to the target UE. The information and the configuration information of the PC5 radio resources of the target UE are sent to the target UE; at least the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE are sent to the target UE. Described participating UE.

In some embodiments, the at least one associated UE includes a participating UE that assists the target UE in performing SL positioning, and the configuration information of the PC5 radio resources at least includes configuration information of the PC5 radio resources of the participating UE, wherein at least Sending the positioning request information and the information related to each associated UE in the configuration information of the PC5 radio resources to each associated UE includes: in the case that the target UE does not access the base station, Send at least the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE to the participating UE.

In some embodiments, the method further includes: sending, through the participating UE, at least the information related to the target UE in the positioning request information and the target UE included in the configuration information of the PC5 radio resource. Configuration information of PC5 radio resources to the target UE; or send information related to the target UE in the positioning request information to participating UEs, where the information related to the target UE in the positioning request information is used Complete SL positioning of the target UE between the participating UE and the target UE.

In some embodiments, the positioning request information includes at least one of positioning policy information for the SL positioning, positioning result feedback mode, positioning accuracy, and quality of service QoS parameters.

In some embodiments, the positioning strategy information includes at least one of information indicating that the SL positioning is absolute positioning or relative positioning of the target UE, positioning methods and positioning parameters; and/or the positioning result feedback Modes include immediate feedback mode, periodic feedback mode or timed feedback mode.

In some embodiments, the positioning request information includes related information of the at least one associated UE, and the generating configuration information of PC5 radio resources for the SL positioning includes: based on the related information of the at least one associated UE. , perform authorization verification on the at least one associated UE; if the authorization verification passes, generate configuration information of PC5 wireless resources for the SL positioning in network scheduling mode according to the positioning request information.

In some embodiments, authorization information of multiple UEs is stored in the base station, and the authorization information of each UE includes whether each UE is authorized by the core network device to use the SL positioning service through the PC5 interface. According to the at least one The related information of the associated UE, and performing authorization verification on the at least one associated UE includes: based on the related information of the at least one associated UE and the authorization information of the multiple UEs, verifying the at least one associated UE. The UE is associated with the UE for authorization verification, wherein the authorization verification is passed when the relevant information of the at least one associated UE matches the authorization information of the multiple UEs. When the authorization information of multiple UEs does not match, the authorization verification fails.

In some embodiments, the method further includes: receiving authorization information of each UE from the core network device during the process of each UE in the plurality of UEs initiating a registration request to the core network device. .

In some embodiments, the receiving the authorization information of each UE from the core network device includes: receiving a registration request message from each UE in the plurality of UEs, wherein the registration request message including capability indication information of each UE, the capability indication information indicating that each UE supports PC5 direct discovery capability, PC5 communication capability and SL positioning capability; sending a registration request message of each UE to the core Network equipment: receiving authorization information of each UE from the core network equipment.

In some embodiments, the method further includes: when handover occurs for each UE among the plurality of UEs, sending authorization information of each UE to the base station to which each UE is handed over.

In some embodiments, when each UE is authorized by the core network device to use the SL positioning service through the PC5 interface, the authorization information of each UE also includes the SL positioning information of each UE. Positioning role, the positioning role includes a positioned role and an assisting positioning role, the at least one associated UE includes a participating UE that assists the target UE in performing SL positioning, the target UE serves as the positioned role, and the participating UE UE plays the role of assisting positioning.

In some embodiments, the configuration information of PC5 wireless resources includes at least one of configuration information of time-frequency resources and cycles used for PC5 communication, PC5 channel identification, and PC5 logical channel configuration information.

In some embodiments, the positioning request information comes from a core network device or a designated UE, and the method further includes: receiving and sending a positioning result of the SL positioning from the at least one associated UE to the core network device or The designated UE.

According to a second aspect of the present disclosure, a base station is provided, including: a receiving module configured to receive positioning request information corresponding to SL positioning of a target user equipment UE, wherein the positioning request information indicates that it is related to the SL positioning At least one associated UE of The information related to each associated UE in the positioning request information and the configuration information of the PC5 radio resources is sent to each associated UE.

According to a third aspect of the present disclosure, a base station is provided, including: a memory; and a processor coupled to the memory, the processor being configured to execute any of the above embodiments based on instructions stored in the memory. Described method for SL positioning.

According to a fourth aspect of the present disclosure, a system for sidelink SL positioning is provided, including: the base station described in any of the above embodiments.

In some embodiments, the system further includes: at least one associated user equipment UE, configured to complete SL positioning for the target UE based on the positioning request information from the base station and the configuration information of the PC5 radio resources used for SL positioning. Configuration.

According to a fifth aspect of the present disclosure, a computer-storable medium is provided, on which computer program instructions are stored. When the instructions are executed by a processor, the method for SL positioning described in any of the above embodiments is implemented.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with the description, serve to explain principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

Figure 1 is a flowchart illustrating a method for SL positioning according to some embodiments of the present disclosure;

Figure 2 is a schematic diagram illustrating a method for SL positioning according to some embodiments of the present disclosure;

Figure 3 is a schematic diagram illustrating a method for SL positioning according to other embodiments of the present disclosure;

Figure 4 is a block diagram illustrating a base station according to some embodiments of the present disclosure;

Figure 5 is a block diagram illustrating a base station according to other embodiments of the present disclosure;

Figure 6 is a block diagram illustrating a system for SL positioning according to some embodiments of the present disclosure;

Figure 7 is a block diagram illustrating a computer system for implementing some embodiments of the present disclosure.

Detailed ways

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these examples do not limit the scope of the disclosure unless otherwise specifically stated.

At the same time, it should be understood that, for convenience of description, the dimensions of various parts shown in the drawings are not drawn according to actual proportional relationships.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application or uses.

Techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate Where appropriate, the techniques, methods and equipment described should be considered part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters refer to similar items in the following figures, so that once an item is defined in one figure, it does not need further discussion in subsequent figures.

The inventor found that in the related technology, when the user equipment is not connected to the base station, the base station will not be able to locate the user equipment on the Uu interface, causing the positioning of the user equipment to fail. In addition, the related technology does not consider supporting SL (SideLink, side link) positioning.

In view of the above technical problems, the present disclosure proposes a solution that can provide service support for SL positioning of UE and reduce the occurrence of positioning failure for user equipment.

Figure 1 is a flowchart illustrating a method for SL positioning according to some embodiments of the present disclosure.

As shown in Figure 1, the method for SL positioning includes steps S110 to S130. The method used for SL positioning is performed by the base station.

In step S110, the base station receives positioning request information corresponding to the SL positioning of the target UE. The positioning request information indicates at least one associated UE related to SL positioning. In some embodiments, at least one associated UE includes participating UEs assisting the target UE in SL positioning. The participating UE communicates with the target UE through the PC5 interface or PC5 link.

SL positioning can be performed based on the Sidelink Positioning Protocol/ranging and Sidelink Positioning Protocol, SLPP/RSPP.

In some embodiments, in the case where the target UE accesses the base station, the at least one associated UE further includes the target UE. In the case where the target UE does not access the base station due to not being within the coverage of the base station or for other reasons, at least one associated UE does not include the target UE.

In some embodiments, the positioning request information includes at least one of positioning policy information for SL positioning, positioning result feedback mode, positioning accuracy, and Quality of Service (QoS) parameters.

For example, the positioning policy information includes information indicating that the SL positioning is absolute positioning or relative positioning of the target UE (for example, positioning for one UE or ranging (Ranging) between multiple UEs, etc.), positioning method and positioning At least one of the parameters. Absolute positioning is used to obtain the absolute position of the target UE, and relative positioning is used to obtain the relative position (eg, including relative distance) of the target UE relative to the participating UEs.

In some embodiments, positioning methods (also called positioning technologies) include RTT (Round Trip Time), AoA (Angle of Arrival, angle of arrival measurement), TDOA (Time Difference of Arrival, signal arrival time difference), AoD (Angle of Departure, angle of departure), etc.

For another example, the positioning result feedback mode includes at least one of an immediate feedback mode, a periodic feedback mode, and a timing feedback mode.

In some embodiments, the positioning request information includes at least one related information of the associated UE. For example, the related information of the associated UE includes the identity of the associated UE.

In some embodiments, the positioning request information comes from the core network device or the designated UE, and the base station also receives and sends the positioning result of SL positioning from at least one associated UE to the core network device or the designated UE. The designated UE is, for example, a third-party UE that does not participate in SL positioning of the target UE.

In step S120, according to the positioning request information, in the network scheduling mode, configuration information of PC5 wireless resources for SL positioning is generated. PC5 is a direct communication interface, which is a communication interface between terminals (or devices and devices). For example, PC5 is a short-distance direct communication interface between vehicles, people, and road infrastructure.

In some embodiments, the configuration information of PC5 radio resources at least includes configuration information of PC5 radio resources of participating UEs. For example, the configuration information of PC5 radio resources may also include the configuration information of PC5 radio resources of the target UE.

In some embodiments, the positioning request information includes at least one related information of the associated UE, and the above step S120 can be implemented through the following steps 1)-2).

In step 1), authorization verification is performed on at least one associated UE based on relevant information of at least one associated UE.

In some embodiments, the base station stores authorization information for multiple UEs. The authorization information for each UE includes whether each UE is authorized by the core network equipment to serve PLMN (Public Land Mobile Network) through the PC5 interface. Use SL location service. In this case, authorization verification is performed on at least one associated UE based on relevant information of at least one associated UE and authorization information of multiple UEs. In the case where the relevant information of at least one associated UE matches the authorization information of multiple UEs, the authorization verification is passed. In the case where the relevant information of at least one associated UE does not match the authorization information of multiple UEs, the authorization verification fails. The authorization information of multiple UEs may be expressed in the form of 5G ProSe Authorized information, for example.

In some embodiments, when each UE is authorized by the core network device to use the SL positioning service through the PC5 interface, the authorization information of each UE also includes the positioning role of each UE in SL positioning. Positioning role pack Including positioned roles and auxiliary positioned roles. The target UE plays the role of being positioned, and the participating UE plays the role of assisting positioning.

In some embodiments, the base station receives authorization information for each UE from the core network device during a process in which each UE among the plurality of UEs initiates a registration request to the core network device. For example, a context message of each UE is received from the core network device, and the context message of each UE carries authorization information of each UE. For example, the base station can receive authorization information for each UE from the core network device through an initial context establishment request (INITIAL CONTEXT SETUP REQUEST) message or a UE context modification request (UE CONTEXT MODIFICATION REQUEST). For another example, during the process of the UE switching to the base station, the authorization information of each UE from the core network equipment can be received through the handover request (HANDOVER REQUEST) and path switch request confirmation (PATH SWITCH REQUEST ACKNOWLEDGE) messages.

For example, first receive a registration request message from each UE in the plurality of UEs, where the registration request message includes capability indication information of each UE, and the capability indication information indicates that each UE supports PC5 direct discovery capability, PC5 communication capability and SL positioning capability; then sends the registration request message of each UE to the core network device; and finally receives the authorization information of each UE from the core network device. In some embodiments, this can be done by receiving an NGAP (NG Application Protocol) message from the core network device, where the NGAP message carries authorization information of each UE.

In some embodiments, when handover occurs for each UE among the plurality of UEs, the base station also sends authorization information of each UE to the base station to which each UE is handed over. For example, during the handover process, the UE is handed over from the source base station to the target base station. In some embodiments, the base station may send authorization information of each UE to the base station to which each UE is handed over through the Xn interface. For example, the base station can use the handover request (HANDOVER REQUEST) message or the retrieval UE context response (RETRIEVE UE CONTEXT RESPONSE) to send the authorization information of each UE to the base station to which each UE is handed over.

In step 2), if the authorization verification is passed, configuration information of PC5 wireless resources for SL positioning is generated in network scheduling mode according to the positioning request information.

In step S130, for each associated UE, at least the positioning request information and the information related to each associated UE in the configuration information of PC5 radio resources are sent to each associated UE. For example, for each associated UE, at least the positioning request information and the information related to each associated UE in the PC5 radio resource configuration information can be sent to each associated UE through RRC (Radio Resource Control, Radio Resource Control) signaling.

In some embodiments, taking at least one associated UE including a participating UE and a target UE as an example, the above step S130 can be implemented in the following manner.

First, when the target UE accesses the base station, at least the information related to the target UE in the positioning request information and the configuration information of the PC5 radio resources of the target UE are sent to the target UE. In some embodiments, only the information related to the target UE in the positioning request information and the configuration information of the PC5 radio resources of the target UE may be sent to the target UE. In this way, the privacy security of the UE can be improved and signaling overhead can be saved. In other embodiments, positioning request information and configuration information of all PC5 radio resources may also be sent to the target UE.

Then, at least the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE are sent to the participating UE. Similar to the operation of the target UE, you can only send the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE to the participating UE, or you can send the positioning request information and the configuration information of all PC5 radio resources to the participating UE. .

In other embodiments, taking as an example that at least one associated UE includes participating UEs but does not include the target UE, the above step S130 may be implemented in the following manner.

When the target UE does not access the base station, at least the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE are sent to the participating UE.

In some embodiments, when the target UE does not access the base station, the base station can also send at least the information related to the target UE in the positioning request information and the PC5 of the target UE included in the configuration information of the PC5 radio resource through the participating UEs. The configuration information of radio resources is sent to the target UE.

In other embodiments, when the target UE does not access the base station, the base station may also send the information related to the target UE in the positioning request information to the participating UEs, and the information related to the target UE in the positioning request information is used by the participating UEs. Complete the SL positioning of the target UE with the target UE. For example, the information related to the target UE in the positioning request information is used for the participating UEs to negotiate with the target UE about the configuration information of the PC5 radio resources of the target UE.

In the above embodiments, for example, the participating UEs include at least one of a reference UE and an auxiliary UE. Both the reference UE and the auxiliary UE are used to interact with the target UE through the PC5 interface for SL positioning. The auxiliary UE is also used to interact with the base station as a relay for the target UE when the target UE does not access the base station.

In the above embodiment, the base station receives the positioning request and generates the configuration information of the PC5 wireless resources for SL positioning in the network scheduling mode, and delivers it to the relevant UEs, so that the relevant UEs can complete the corresponding PC5 wireless resources. The configuration process enables the relevant UE to complete the SL positioning process, provides support services for the SL positioning of the UE, coordinates resources for the SL positioning of the UE, and reduces the failure to position the user equipment. In addition, by generating configuration information in network scheduling mode, the probability of resource selection collision can be reduced and system reliability improved.

Figure 2 is a schematic diagram illustrating a method for SL positioning according to some embodiments of the present disclosure.

As shown in Figure 2, taking the core network device initiating a positioning request as an example, UE1 and UE2 send registration request messages to the core network device respectively, which carry the capabilities to support PC5 direct discovery, PC5 communication, and side chain (SL) ranging/positioning. instructions. If the core network device authorizes UE1 and UE2 to use the SL positioning service in the serving PLMN, the core network device carries the authorization information in the context message sent to UE1 and UE2 to the base station. The base station receives and stores the SL positioning authorization information of UE1 and UE2. Both UE1 and UE2 are connected to the base station. Base stations include gNB, which is a 5G base station.

In this case, the method for SL positioning includes steps S201 to S204.

In step S201, when the core network device requests SL ranging between UE1 and UE2, positioning request information is sent to the base station. The positioning request information includes UE identification (UE1's id and UE2's id), positioning policy information, positioning result feedback mode, positioning accuracy, QoS parameters, etc.

In step S202, the base station performs authorization verification on UE1 and UE2 based on the authorization information received from the core network device, and generates PC5 wireless resource configuration information for SL positioning for UE1 and UE2. For the authorization verification process, refer to the previous embodiment and will not be described again here.

In step S203, the base station sends at least the positioning request information and the information related to UE2 in the configuration information of PC5 radio resources to UE2 through RRC signaling.

In step S204, the base station sends at least the positioning request information and the configuration information of PC5 wireless resources and information related to UE1 to UE1 through RRC signaling.

In some embodiments, the method for SL positioning may further include step S205. In step S205,

SL positioning operation is performed between UE1 and UE2. For example, UE1 may serve as the target UE, and UE2 may serve as the reference UE. For another example, UE2 can also be used as the target UE, and UE1 can also be used as the reference UE.

In some embodiments, the positioning result may be sent by UE1 or UE2 to the core network device through the base station.

FIG. 3 is a schematic diagram illustrating a method for SL positioning according to other embodiments of the present disclosure.

As shown in Figure 3, taking the core network device initiating a positioning request as an example, UE1 sends a registration request message to the core network device, which carries indication information that supports PC5 direct discovery, PC5 communication, and SL positioning capabilities. If the core network device authorizes UE1 to use the SL positioning service in the serving PLMN, the core network device carries the authorization information in the UE1 context message sent to the base station. The base station receives and stores the SL positioning authorization information of UE1. Base stations include gNB, which is a 5G base station.

In this case, taking UE2 not connected to the base station as an example, the method for SL positioning includes steps S301 to S303.

In step S301, when the core network device requests SL positioning for the target UE2, the core network device The device sends positioning request information to the base station. The positioning request information indicates UE1 as a participating UE. In this case, the associated UEs only include UE1.

In step S302, the base station performs authorization verification on UE1 based on the received authorization information, and generates configuration information of PC5 wireless resources used for SL positioning.

In step S303, the base station sends at least positioning request information and information related to UE1 in the configuration information of PC5 radio resources to UE1 through RRC signaling.

In some embodiments, the base station also uses RRC signaling to send at least positioning request information and information related to UE2 in the configuration information of PC5 radio resources to UE2 through UE1. For example, UE1 first establishes PC5 unicast communication with UE2 by executing the PC5 discovery process or paging UE2, so that the base station can also use RRC signaling to at least include the positioning request information and the configuration information of PC5 wireless resources through UE1. Information related to UE2 is sent to UE2.

In other embodiments, the base station may send the information related to UE2 in the positioning request information to UE1 through RRC signaling, so that UE1 and UE2 negotiate to complete UE2's SL positioning. For example, the information related to UE2 in the positioning request information can be used by UE1 and UE2 to negotiate the configuration information of PC5 wireless resources of UE2. In this case, the base station may not generate the configuration information of PC5 radio resources of UE2.

In some embodiments, the method for SL positioning may further include step S304. In step S304, UE1 and UE2 perform SL positioning operations.

In some embodiments, the positioning result may be sent by UEl to the core network device through the base station.

In some embodiments, the core network equipment in Figures 2 and 3 can also be replaced by a third-party UE. The specific process can be referred to Figures 2 and 3, which will not be described again here.

Figure 4 is a block diagram illustrating a base station according to some embodiments of the present disclosure.

As shown in Figure 4, the base station 41 includes a receiving module 411, a generating module 412 and a sending module 413.

The receiving module 411 is configured to receive positioning request information corresponding to the SL positioning of the target user equipment UE, where the positioning request information indicates at least one associated UE related to the SL positioning, for example, perform step S110 as shown in FIG. 1 .

The generation module 412 is configured to generate configuration information of PC5 wireless resources for SL positioning in the network scheduling mode according to the positioning request information, for example, perform step S120 as shown in FIG. 1 .

The sending module 413 is configured to send at least the positioning request information and the information related to each associated UE in the configuration information of the PC5 radio resource to each associated UE, for example, perform step S120 as shown in FIG. 1 .

The receiving module 411, the generating module 412 and the sending module 413 are respectively used to execute the functions used in any of the foregoing embodiments. The relevant steps of the sidelink SL positioning method will not be described again here.

Figure 5 is a block diagram illustrating a base station according to other embodiments of the present disclosure.

As shown in FIG. 5 , the base station 51 includes a memory 511; and a processor 512 coupled to the memory 511. The memory 511 is used to store instructions for executing corresponding embodiments of the method for SL positioning. The processor 512 is configured to perform the method for SL positioning in any embodiments of the present disclosure based on instructions stored in the memory 511 .

Figure 6 is a block diagram illustrating a system for SL positioning according to some embodiments of the present disclosure.

As shown in FIG. 6 , the system 6 for SL positioning includes a base station 61 . The base station 61 is, for example, a base station in any embodiment of the present disclosure, and is configured to perform the method for SL positioning in any embodiment of the present disclosure.

The system 6 for SL positioning also includes at least one associated UE 62. Each associated UE 62 is configured with positioning request information from the base station and configuration information of PC5 radio resources for SL positioning, completes configuration for the target UE to perform SL positioning, and performs SL positioning. Figure 6 shows one associated UE but does not mean that there is only one associated UE.

Each associated UE 62 is also configured to feed back positioning results.

As shown in Figure 7, computer system 70 may be embodied in the form of a general purpose computing device. Computer system 70 includes memory 710, processor 720, and bus 700 connecting various system components.

Memory 710 may include, for example, system memory, non-volatile storage media, or the like. System memory stores, for example, operating systems, applications, boot loaders, and other programs. System memory may include volatile storage media such as random access memory (RAM) and/or cache memory. The non-volatile storage medium stores, for example, instructions for performing corresponding embodiments of at least one of the methods for SL positioning. Non-volatile storage media includes but is not limited to disk storage, optical storage, flash memory, etc.

Processor 720 may be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete hardware components such as discrete gates or transistors. accomplish. Correspondingly, each module, such as the judgment module and the determination module, can be implemented by instructions executing corresponding steps in a central processing unit (CPU) running memory, or by dedicated circuits executing corresponding steps.

Bus 700 may use any of a variety of bus structures. For example, bus structures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, and Peripheral Component Interconnect (PCI) bus.

The computer system 70 may also include an input/output interface 730, a network interface 740, a storage interface 750, and the like. These interfaces 730, 740, 750, the memory 710 and the processor 720 may be connected through a bus 700. The input and output interface 730 can provide a connection interface for input and output devices such as a monitor, mouse, and keyboard. Network interface 740 provides a connection interface for various networked devices. The storage interface 750 provides a connection interface for external storage devices such as floppy disks, USB disks, and SD cards.

Various aspects of the disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks, can be implemented by computer-readable program instructions.

These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable device to produce a machine, such that execution of the instructions by the processor produces implementations in one or more blocks of the flowcharts and/or block diagrams. A device with specified functions.

Computer-readable program instructions, which may also be stored in computer-readable memory, cause the computer to operate in a specific manner to produce an article of manufacture, including implementing the functions specified in one or more blocks of the flowcharts and/or block diagrams. instructions.

The disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects.

Through the method and system for SL positioning, the base station, and the computer-storable medium in the above embodiments, service support can be provided for SL positioning of the UE, and the failure to position the user equipment can be reduced.

So far, the method and system for SL positioning, the base station, and the computer-storable medium according to the present disclosure have been described in detail. To avoid obscuring the concepts of the present disclosure, some details that are well known in the art have not been described. Based on the above description, those skilled in the art can completely understand how to implement the technical solution disclosed here.

Claims

A method for sidelink SL positioning, performed by a base station, including:

Receive positioning request information corresponding to SL positioning of the target user equipment UE, wherein the positioning request information indicates at least one associated UE related to the SL positioning;

According to the positioning request information, in network scheduling mode, generate configuration information of PC5 wireless resources for the SL positioning;

Send at least the information related to each associated UE in the positioning request information and the configuration information of the PC5 radio resource to each associated UE.
The method according to claim 1, wherein the at least one associated UE includes a participating UE that assists the target UE in performing SL positioning, and the configuration information of the PC5 radio resource includes the PC5 of the target UE and the participating UE. Configuration information of radio resources. When the target UE accesses the base station, the at least one associated UE also includes the target UE, wherein,

The sending of at least the information related to each associated UE among the positioning request information and the configuration information of the PC5 radio resource to each associated UE includes:

When the target UE accesses the base station, send at least the information related to the target UE in the positioning request information and the configuration information of the PC5 radio resources of the target UE to the target UE;

Send at least the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE to the participating UE.
The method according to claim 1 or 2, wherein the at least one associated UE includes a participating UE that assists the target UE in performing SL positioning, and the configuration information of the PC5 radio resources at least includes the PC5 radio resources of the participating UE. configuration information, where,

The sending of at least the information related to each associated UE among the positioning request information and the configuration information of the PC5 radio resource to each associated UE includes:

When the target UE does not access the base station, at least the information related to the participating UE in the positioning request information and the configuration information of the PC5 radio resources of the participating UE are sent to the participating UE.
The method of claim 3, further comprising:

Through the participating UE, at least the information related to the target UE in the positioning request information and the configuration information of the PC5 radio resources of the target UE included in the configuration information of the PC5 radio resources are sent to the target UE. ;or

Send the information related to the target UE in the positioning request information to the participating UE, wherein the information related to the target UE in the positioning request information is used for the participating UE to complete the tasks with the target UE. Describe the SL positioning of the target UE.
The method according to any one of claims 1 to 4, wherein the positioning request information includes at least one of positioning strategy information of the SL positioning, positioning result feedback mode, positioning accuracy and quality of service QoS parameters.
The method according to claim 5, wherein the positioning policy information includes at least one of information indicating that the SL positioning is absolute positioning or relative positioning of the target UE, a positioning method and a positioning parameter; and/or

The positioning result feedback mode includes an immediate feedback mode, a periodic feedback mode or a timing feedback mode.
The method according to any one of claims 1 to 6, wherein the positioning request information includes related information of the at least one associated UE, and the generating configuration information of PC5 wireless resources for the SL positioning includes:

Perform authorization verification on the at least one associated UE according to the relevant information of the at least one associated UE;

If the authorization verification is passed, configuration information of PC5 wireless resources for the SL positioning is generated in the network scheduling mode according to the positioning request information.
The method according to claim 7, wherein the base station stores authorization information of multiple UEs, and the authorization information of each UE includes whether each UE is authorized by the core network device to use the SL positioning service through the PC5 interface, The authorization verification of the at least one associated UE according to the relevant information of the at least one associated UE includes:

Perform authorization verification on the at least one associated UE according to the relevant information of the at least one associated UE and the authorization information of the multiple UEs, wherein the relevant information of the at least one associated UE and the authorization information of the multiple UEs In the case where the authorization information matches and the authorization verification passes, the relevant information of the at least one associated UE If it does not match the authorization information of the multiple UEs, the authorization verification fails.
The method of claim 8, further comprising:

In the process of each UE in the plurality of UEs initiating a registration request to the core network device, authorization information of each UE from the core network device is received.
The method according to claim 9, wherein the receiving the authorization information of each UE from the core network device includes:

Receive a registration request message from each UE in the plurality of UEs, wherein the registration request message includes capability indication information of each UE, and the capability indication information indicates that each UE supports PC5 direct discovery capabilities, PC5 communication capabilities and SL positioning capabilities;

Send the registration request message of each UE to the core network device;

Receive authorization information for each UE from the core network device.
The method according to claim 9 or 10, further comprising:

When handover occurs for each UE among the plurality of UEs, authorization information of each UE is sent to the base station to which each UE is handed over.
The method according to any one of claims 8-11, wherein in the case where each UE is authorized by the core network device to use the SL positioning service through the PC5 interface, the authorization information of each UE further includes The positioning role of each UE in SL positioning. The positioning role includes a positioned role and an assisting positioning role. The at least one associated UE includes a participating UE that assists the target UE in performing SL positioning. The target The UE plays the role of being positioned, and the participating UE plays the role of assisting positioning.
The method according to any one of claims 1 to 12, wherein the configuration information of the PC5 wireless resources includes configuration information of time-frequency resources and cycles used for PC5 communication, PC5 channel identification, and PC5 logical channel configuration information. At least one.
The method according to any one of claims 1-13, wherein the positioning request information comes from a core network device or a designated UE, and the method further includes:

Receive and send the positioning result of the SL positioning from the at least one associated UE to the core network device or the designated UE.
A base station including:

a receiving module configured to receive positioning request information corresponding to SL positioning of the target user equipment UE, wherein the positioning request information indicates at least one associated UE related to the SL positioning;

A generation module configured to generate configuration information of PC5 wireless resources for the SL positioning in network scheduling mode according to the positioning request information;

The sending module is configured to send at least the positioning request information and the information related to each associated UE in the configuration information of the PC5 wireless resource to each associated UE.
A base station including:

memory; and

A processor coupled to the memory, the processor being configured to perform the method for sidelink SL positioning according to any one of claims 1 to 14 based on instructions stored in the memory.
A system for sidelink SL positioning, including:

The base station according to claim 15 or 16.
The system of claim 17, further comprising:

At least one associated user equipment UE is configured to complete the configuration for the target UE to perform SL positioning based on the positioning request information from the base station and the configuration information of PC5 radio resources used for SL positioning.
A computer storage medium having computer program instructions stored thereon, which when executed by a processor implements the method for sidelink SL positioning as claimed in any one of claims 1 to 14.
A computer program, comprising: instructions, which when executed by a processor implement the method for side link SL positioning according to any one of claims 1 to 14.