WO2023217025A1 - Procédé de positionnement de liaison latérale, procédé d'envoi d'informations, terminal, serveur et dispositif - Google Patents

Procédé de positionnement de liaison latérale, procédé d'envoi d'informations, terminal, serveur et dispositif Download PDF

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Publication number
WO2023217025A1
WO2023217025A1 PCT/CN2023/092470 CN2023092470W WO2023217025A1 WO 2023217025 A1 WO2023217025 A1 WO 2023217025A1 CN 2023092470 W CN2023092470 W CN 2023092470W WO 2023217025 A1 WO2023217025 A1 WO 2023217025A1
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WIPO (PCT)
Prior art keywords
terminal
reference signal
positioning reference
positioning
message
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PCT/CN2023/092470
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English (en)
Chinese (zh)
Inventor
张宏平
潘翔
郑倩
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维沃移动通信有限公司
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Publication of WO2023217025A1 publication Critical patent/WO2023217025A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • SL sidelink
  • the terminal only supports positioning technology based on mobile networks, that is, the wireless access network equipment sends downlink positioning reference signals and the terminal performs measurements, or the terminal sends uplink positioning reference signals and the wireless access network equipment performs measurements to achieve positioning. It can be seen that the current terminal cannot support SL positioning, resulting in poor terminal positioning performance.
  • Embodiments of the present application provide a side link positioning method, device, terminal, server and wireless access network equipment to solve the problem of poor positioning performance of the terminal due to the inability of the terminal to support SL positioning.
  • the second terminal receives an instruction message, the instruction message is used to request activation: send the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration, and the second terminal is an auxiliary terminal or anchor terminal for SL positioning;
  • the wireless access network device sends a system information message, where the system information message includes side link SL positioning reference signal configurations of the M terminals;
  • the first receiving module is used to receive an instruction message.
  • the instruction message is used to request activation: send the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration.
  • the second terminal corresponding to the device is an auxiliary device for SL positioning. terminal or anchor terminal;
  • an information sending device including:
  • a terminal is provided.
  • the terminal is a first terminal and includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the programs or instructions are processed by the processor.
  • the processor is executed, the steps of the side link positioning method on the first terminal side as provided in the embodiment of the present application are implemented.
  • a terminal is provided.
  • the terminal is a second terminal, including a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the programs or instructions are processed by the processor.
  • the server is executed, the steps of the side link positioning method on the second terminal side provided by the embodiment of the present application are implemented.
  • a terminal is provided.
  • the terminal is a second terminal and includes a processor and a communication interface.
  • the communication interface is used to receive an instruction message.
  • the instruction message is used to request activation: send target side chain.
  • the SL positioning reference signal is configured with a corresponding SL positioning reference signal, and the second terminal corresponding to the device is an auxiliary terminal or anchor terminal for SL positioning; based on the target SL positioning reference signal configuration, the SL positioning reference signal is sent.
  • a readable storage medium is provided.
  • Programs or instructions are stored on the readable storage medium.
  • the side chain on the first terminal side provided by the embodiment of the present application is implemented.
  • the steps of the path positioning method, or when the program or instructions are executed by the processor, the steps of the side link positioning method on the second terminal side provided by the embodiment of the present application are implemented, or when the program or instructions are executed by the processor Steps to implement the information sending method provided by the embodiments of this application.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the methods provided by the embodiments of the present application.
  • the steps of the side link positioning method on the first terminal side, or the computer program/program product is executed by at least one processor to implement the steps of the side link positioning method on the second terminal side provided by the embodiment of the present application, or , the computer program/program product is executed by at least one processor to implement the steps of the information sending method provided by the embodiment of the present application.
  • the first terminal obtains N sets of side link SL positioning reference signal configurations of the second terminal, where the first terminal is a target terminal for SL positioning, and the second terminal is an auxiliary terminal for SL positioning.
  • anchor terminal N is a positive integer; the first terminal is positioned in the N sets of SLs In the reference signal configuration, the target SL positioning reference signal configuration is determined; the first terminal sends a first message, the first message is used to request activation: sending the SL positioning reference signal corresponding to the target SL positioning reference signal configuration; so The first terminal performs SL positioning reference signal measurement based on the target SL positioning reference signal configuration. This enables the terminal to support SL positioning to improve terminal positioning performance.
  • Figure 4 is a flow chart of an information sending method provided by an embodiment of the present application.
  • Figure 8 is a schematic diagram of another side link positioning method provided by an embodiment of the present application.
  • Figure 11 is a structural diagram of an information sending device provided by an embodiment of the present application.
  • system and “network” in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • sidelink sidelink, or translated as secondary link, side link, side link, etc., referred to as SL
  • SL transmission can be performed between terminals 11, that is, the terminals 11 can directly transmit on the physical layer. Perform data transfer.
  • SL transmission between terminals 11 may be broadcast, unicast, multicast or multicast, etc.
  • the terminals for SL transmission can be all online or all offline, or some devices can be online and some offline.
  • the network side equipment 12 may include radio access network equipment and core network equipment, where the radio access network equipment may also be called a radio access network (Radio Access Network, RAN), radio access network function or radio access network unit.
  • Radio Access Network Radio Access Network
  • Wireless access network equipment can include base stations, Wireless Local Area Network (WLAN) access points or Wireless Fidelity (WiFi) nodes, etc.
  • the base station can be called Node B, Evolved Node B (Evolved Node B) , eNB), access point, base transceiver station (Base Transceiver Station, BTS), radio base station, radio transceiver, basic service set (Basic Service Set, BSS), extended service set (Extended Service Set, ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms, and needs to be explained However, in the embodiment of this application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
  • Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), applied function Function (Application Function, AF), Network Data Analytics Function (NWDAF), Location Management Function (LMF), etc.
  • MME mobility management entities
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • the positioning server may be a core network device, such as an LMF.
  • SL transmission may include two resource allocation modes (modes). One is mode1, which schedules resources for network-side devices; the other is mode2, where the terminal decides what resources to use for transmission.
  • the resource information may come from broadcast messages or preconfigured information from network-side devices. If the terminal works within the range of the network side device and has a Radio Resource Control (RRC) connection with the network side device, it can use the resources of mode1 and/or mode2. If the terminal works within the range of the network side device but is connected to the network side The device does not have an RRC connection and can work in mode2. If the terminal is outside the range of the network side device, it can work in mode2 and perform SL transmission according to the preconfigured information.
  • RRC Radio Resource Control
  • the working method can be as follows:
  • the terminal Before resource selection, the terminal needs to determine the candidate resources for resource selection and the candidate resource set (candidate resource set), based on the reference signal received power (RSRP) measured on the resources within the resource selection window and The corresponding RSRP threshold (RSRP threshold) is compared. If the RSRP is lower than the RSRP threshold, the resource can be included in the alternative resource set.
  • RSRP reference signal received power
  • Figure 2 is a flow chart of a side link positioning method provided by an embodiment of the present application. As shown in Figure 2, it includes the following steps, including:
  • Step 201 The first terminal acquires N sets of side link SL positioning reference signal (PRS) configurations of the second terminal, where the first terminal is a target terminal (target UE) for SL positioning, and the first terminal
  • the second terminal is an auxiliary terminal or anchor terminal (anchor UE) for SL positioning, and N is a positive integer.
  • PRS side link SL positioning reference signal
  • the SL positioning reference signal configuration may include but is not limited to at least one of the following:
  • the above-mentioned second terminal may be one or more terminals determined by the first terminal, or the above-mentioned second terminal may be one or more terminals indicated by the network side.
  • Step 202 The first terminal determines a target SL positioning reference signal configuration among the N sets of SL positioning reference signal configurations.
  • the above-mentioned first terminal determines the target SL positioning reference signal configuration among the N sets of SL positioning reference signal configurations.
  • the terminal selects the target SL positioning reference signal configuration among the N sets of SL positioning reference signal configurations, for example: based on the positioning service quality ( Quality of Service, QoS) selects the above target SL positioning reference signal configuration.
  • the above target SL positioning parameters may also be a target SL positioning reference signal configuration selected from N sets of SL positioning reference signal configurations based on the SL layer 2 identifier associated with the received target SL positioning reference signal configuration.
  • the second terminal sends the SL positioning reference signal corresponding to the target SL positioning reference signal configuration.
  • Step 204 The first terminal performs SL positioning reference signal measurement based on the target SL positioning reference signal configuration.
  • the above-mentioned measurement of the SL positioning reference signal is performed to obtain the measurement result, which is used to determine the positioning of the first terminal.
  • the above steps can be used to realize that the terminal supports SL positioning, thereby improving the terminal positioning performance, and realizing terminal positioning in a scenario without mobile network coverage.
  • M is a positive integer
  • the M terminals include the second terminal
  • the SL positioning reference signal configuration of the second terminal includes the N sets of side link SL positioning reference signal configurations.
  • system information messages are system information messages broadcast by wireless access network equipment.
  • the system information messages include system information block (System Information Block, SIB), or positioning system information block (Positioning SIB, posSIB), or SL positioning system information. block (sidelink posSIB).
  • SIB System Information Block
  • posSIB positioning system information block
  • SL positioning system information. block sidelink posSIB
  • system information message also includes at least one of the following:
  • the SL Layer 2 ID (Layer 2 ID) associated with the SL positioning service
  • the identification information of the M terminals may include the SL layer 2 identification or terminal identification of the M terminals.
  • the first configuration authorization type resources the second configuration authorization type resources, dynamic scheduling resources and autonomous selection resources;
  • the first configuration authorization type resource is: a transmission resource that the first terminal can directly send the SL positioning reference signal;
  • the second configuration authorization type resource is: a transmission resource for the first terminal to send an SL positioning reference signal based on an activation command;
  • the autonomously selected resource is a resource selected by the first terminal through perception for sending the SL positioning reference signal.
  • the above-mentioned first configured grant type resource may be a configured grant type 1 (configured grant type 1) resource in mode 1 (mode1) defined in the protocol.
  • the above-mentioned transmission resource that the first terminal can directly send the SL positioning reference signal can be understood as, The terminal can immediately use these transmission resources to send SL positioning reference signals.
  • the above configuration message may indicate the resource pool in which the first configuration authorization type resource is located.
  • the positioning QoS corresponding to the above SL positioning reference signal configuration may be used by the first terminal to use the target SL positioning reference signal configuration according to this selection.
  • the SL layer 2 identifier associated with each set of SL positioning reference signal configuration, the QoS information corresponding to each set of SL positioning reference signal configuration, and the SL layer 2 identifier associated with the SL positioning service may be pre-configured. of.
  • the SL layer 2 identifiers associated with different positioning services may be the same or different.
  • a specific SL layer 2 identifier is associated with a specific positioning service.
  • the SL layer 2 identifiers associated with different SL positioning reference signal configurations may be the same or different.
  • a specific SL layer 2 identifier is associated with a specific SL positioning reference signal configuration.
  • the first terminal can select the corresponding target SL positioning reference signal configuration to perform SL positioning reference signal measurement, so as to improve the flexibility of SL positioning.
  • the first terminal obtains N sets of side link SL positioning reference signal configurations of the second terminal, including:
  • the first terminal receives a broadcast message from a second terminal device, the broadcast message includes: the SL positioning reference signal configuration of the second terminal, wherein the SL positioning reference signal configuration of the second terminal includes the N sets of side link SL positioning reference signal configurations.
  • the SL positioning reference signal configuration of the second terminal can be obtained by receiving a broadcast message from the second terminal device, so that terminal positioning can be achieved in a scenario without mobile network coverage.
  • terminal positioning can also be achieved in scenarios with mobile network coverage.
  • the location information of the second terminal may be the latitude and longitude information of the second terminal.
  • the transmission resources, QoS information and SL layer 2 identifier associated with the above SL positioning reference signal configuration can be found in the corresponding descriptions of the above embodiments, and will not be described again here.
  • the first terminal can select the corresponding target SL positioning reference signal configuration to perform SL positioning reference signal measurement, so as to improve the flexibility of SL positioning.
  • the first terminal sends a first message, including:
  • the first terminal sends the first message to the radio access network device, where the first message includes at least one of the following:
  • the identification information of the second terminal is the identification information of the second terminal.
  • the QoS information matches the target SL positioning reference signal configuration.
  • the identification information of the target SL positioning reference signal configuration may be an index or identification of the target SL positioning reference signal configuration.
  • the first terminal broadcasts the first message on the PC5 interface, wherein the SL layer 2 identifier of the first message corresponds to the SL positioning service, or the SL layer 2 identifier of the first message corresponds to the target SL positioning reference.
  • the signal configuration, or the SL layer 2 identifier of the first message corresponds to the QoS corresponding to the target SL positioning reference signal configuration.
  • the above-mentioned first message may be a discovery message, such as a discovery announcement message, or a direct link establishment request message (DIRECT LINK ESTABLISHMENT REQUEST) message, or a sidelink positioning protocol layer message.
  • a discovery message such as a discovery announcement message, or a direct link establishment request message (DIRECT LINK ESTABLISHMENT REQUEST) message, or a sidelink positioning protocol layer message.
  • the SL destination layer 2 ID of the first message uses the SL layer 2 ID corresponding to the SL positioning service. That is, the SL positioning service corresponds to an SL layer 2 ID.
  • the SL layer 2 ID can be the second one in step 5.
  • the terminal or the wireless access network device sends the first terminal, or It is preset or specified by the protocol, that is, it is preset or specified by the protocol that a certain SL layer 2 identifier corresponds to the SL positioning service.
  • the first message can be implemented Indicates activation of sending the target SL positioning reference signal configuration, such as the SL layer 2 identifier at the target SL positioning reference signal configuration level.
  • the first terminal determines to use the target SL positioning through the above SL layer 2 identifier.
  • the identification information of the first terminal is preset or specified by the protocol.
  • the first terminal obtains N sets of side link SL positioning reference signal configurations of the second terminal, where the first terminal is a target terminal for SL positioning, and the second terminal is an auxiliary terminal for SL positioning.
  • N is a positive integer
  • the first terminal determines the target SL positioning reference signal configuration in the N sets of SL positioning reference signal configurations
  • the first terminal sends a first message, the first message Used to request activation: send the SL positioning reference signal corresponding to the target SL positioning reference signal configuration
  • the first terminal performs SL positioning reference signal measurement based on the target SL positioning reference signal configuration. This enables the terminal to support SL positioning to improve terminal positioning performance.
  • Figure 3 is a flow chart of another side link positioning method provided by an embodiment of the present application. As shown in Figure 3, it includes the following steps:
  • Step 301 The second terminal receives an instruction message, which is used to request activation: send the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration.
  • the second terminal is an auxiliary terminal or anchor point for SL positioning. terminal.
  • the above instruction message may be an instruction message received from the radio access network device, or may be an instruction message received from the first terminal.
  • Step 302 The second terminal sends an SL positioning reference signal based on the target SL positioning reference signal configuration.
  • the SL positioning reference signal can be a reference signal sent by the terminal on the PC5 port that can be used for positioning measurement.
  • it can be a newly introduced positioning reference signal on PC5, or it can reuse the reference signal of the PC5 port that has been defined in the protocol. .
  • the above steps can be used to realize that the terminal supports SL positioning, thereby improving the terminal positioning performance, and realizing terminal positioning in a scenario without mobile network coverage.
  • the second terminal receives an indication message, including:
  • the identification information of the target SL positioning reference signal configuration may be an index or identification of the target SL positioning reference signal configuration.
  • the above indication message can be sent through MAC CE or Downlink Control Information (DCI), which can activate the SL positioning reference signal transmission through MAC CE or DCI. Specifically, it can activate the target SL positioning reference signal configuration, or activate the SL Transmission resources associated with the positioning reference signal, such as activating the transmission resources associated with the target SL positioning reference signal configuration, which means activating the transmission of the SL positioning reference signal corresponding to the target SL positioning reference signal configuration.
  • DCI Downlink Control Information
  • the target SL positioning reference signal configuration is determined through the instruction message, so that the transmission of the corresponding SL positioning reference signal is activated only when needed, so as to save the wireless resources of the PC5 port and improve the flexibility of SL positioning.
  • the activation message is MAC CE or DCI
  • through Activation through MAC CE or DCI can reduce latency compared to activation through RRC messages.
  • the second terminal receives a configuration message from the wireless access network device, the configuration message includes N sets of SL positioning reference signal configurations, and the target SL positioning reference signal configuration is one of the N sets of SL positioning reference signal configurations.
  • Configuration, N is a positive integer.
  • the above step can be understood as a pre-configuration step, that is, the N sets of SL positioning reference signal configuration configured in this step can occur before receiving the SL positioning request, or can be used for one or more times. Multiple SL positioning, that is to say, in the embodiment of the present application, this step does not need to be performed every time SL positioning is performed. Performing this step once can be used for one or multiple SL positioning, and the above N can be used in different SL positioning. Set the same or different configurations in the SL positioning reference signal configuration.
  • the configuration message also includes at least one of the following:
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the transmission resources corresponding to the transmission resource information may include at least one of the following:
  • the first configuration authorization type resources the second configuration authorization type resources, dynamic scheduling resources and autonomous selection resources;
  • the first configuration authorization type resource is: a transmission resource that the second terminal can directly send the SL positioning reference signal;
  • the second configuration authorization type resource is: a transmission resource for the second terminal to send an SL positioning reference signal based on an activation command;
  • the dynamic scheduling resource is dynamically scheduled by the wireless access network device for sending SL positioning parameters. Resources for testing signals;
  • the autonomously selected resource is a resource selected by the second terminal through perception for sending the SL positioning reference signal.
  • the second terminal receives an indication message, including:
  • the second terminal receives the first message broadcast by the first terminal on the PC5 interface, wherein the SL layer 2 identifier of the first message corresponds to the SL positioning service, or the SL layer 2 identifier of the first message corresponds to the target
  • the SL positioning reference signal configuration, or the SL layer 2 identifier of the first message corresponds to the QoS corresponding to the target SL positioning reference signal configuration.
  • the method before the second terminal receives the first message broadcast by the first terminal on the PC5 interface, the method further includes:
  • the broadcast message also includes at least one of the following:
  • the location information of the second terminal is the location information of the second terminal.
  • the above broadcast message may refer to the corresponding description of the embodiment shown in FIG. 2 and will not be described again here.
  • the second terminal is preset with at least one of the following:
  • the above-mentioned second terminal preset may be defined by the protocol or obtained by the second terminal in advance.
  • this embodiment is an implementation of the second terminal corresponding to the embodiment shown in Figure 2.
  • the relevant description of the embodiment shown in Figure 2 please refer to the relevant description of the embodiment shown in Figure 2 to avoid repeated description. No further details will be given in this embodiment.
  • Figure 4 is a flow chart of an information sending method provided by an embodiment of the present application. As shown in Figure 4, it includes the following steps:
  • the second terminal can send an SL positioning reference signal based on the SL positioning reference signal configuration, and the first terminal performs SL positioning reference signal measurement, thereby enabling the terminal to support SL positioning and improving the terminal's positioning performance.
  • system information message also includes at least one of the following:
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the information of the M terminals includes at least one of the following:
  • the system information message includes a system information block, a positioning system information block, or an SL positioning system information block.
  • the method further includes:
  • the radio access network device receives a first message sent by a first terminal, where the first terminal is a target terminal for SL positioning, and the first message is used to request activation: sending a target SL positioning reference signal configuration corresponding to SL positioning reference signal.
  • the first message includes at least one of the following:
  • the identification information of the second terminal is the identification information of the second terminal.
  • the QoS information matches the target SL positioning reference signal configuration.
  • the method also includes:
  • the indication message includes at least one of the following:
  • the target SL positioning reference signal configures associated transmission resources.
  • the method before the radio access network device sends the system information message, the method further includes:
  • the radio access network device sends a configuration message to the second terminal, where the configuration message is used to configure N sets of SL positioning reference signal configurations, where N is a positive integer.
  • the configuration message is also used to include at least one of the following:
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the transmission resources corresponding to the transmission resource information include at least one of the following:
  • the first configuration authorization type resources the second configuration authorization type resources, dynamic scheduling resources and autonomous selection resources;
  • the second configuration authorization type resource is: a transmission resource for the second terminal to send an SL positioning reference signal based on an activation command;
  • the dynamic scheduling resources are resources dynamically scheduled by the radio access network device for sending SL positioning reference signals
  • the autonomously selected resource is a resource selected by the second terminal through perception for sending the SL positioning reference signal.
  • the wireless access network device receives an auxiliary message sent by the positioning server, where the auxiliary message includes:
  • the corresponding positioning service quality QoS information configured by the SL positioning reference signals of the M terminals;
  • the SL layer 2 identifier associated with the target SL positioning reference signal configuration is a registered trademark of Lucent Technologies Inc.
  • the receiving positioning server since the receiving positioning server sends the above assistance message, it can assist
  • the wireless access network device can better complete SL positioning-related operations, for example, it can assist the wireless access network device in sending a more accurate instruction message to the second terminal.
  • this embodiment is an implementation of the radio access network equipment corresponding to the embodiments shown in Figures 2 and 3.
  • the embodiments shown in Figures 2 and 3. Relevant descriptions will not be repeated in this embodiment in order to avoid repeated descriptions.
  • the network configures one or more sets of SL PRS configurations for the anchor UE (such as RSU), and the base station broadcasts this information through system information.
  • the target UE decides which anchor UE configuration to use, sends a message to the base station to request activation of the SL PRS corresponding to these PRS configurations, and then the base station activates the UE through MAC CE or DCI.
  • the PC5 interface sends this set of SL PRS configuration.
  • Step 1 The base station sends an RRC Reconfiguration (RRC Reconfiguration) message to one or more anchor UEs (also called auxiliary UEs).
  • RRC Reconfiguration RRC Reconfiguration
  • the message carries one or more sets of SL PRS configurations and corresponding SL PRS (in PC5 port) transmission resources, each set of configurations can correspond to a configuration index.
  • the transmission resource of SL PRS can be configured grant type 1 resource or configured grant type 2 resource of mode1. These two resources are periodic grant resources.
  • the anchor UE immediately uses these transmission resources to send SL PRS.
  • the base station can indicate the resource pool where the configured grant type 1 resource is located.
  • the anchor UE needs to wait for subsequent receipt of the activation command before sending SL PRS.
  • the location information of each anchor UE such as latitude and longitude information.
  • the response message may include the SL PRS configuration of one or more anchor UEs.
  • Step 6 When the target UE needs to perform positioning, the target UE broadcasts a Discovery message (such as discovery announcement) on the PC5 port, or broadcasts a DIRECT LINK ESTABLISHMENT REQUEST message on the PC5 port. , or broadcast sidelink positioning protocol layer messages on PC5 port.
  • the destination layer 2 ID of this message uses the layer 2 ID corresponding to the SL positioning service, that is, the SL positioning service corresponds to a layer 2 ID.
  • the layer 2 ID can be the one sent to the target UE in step 5, or It is preset or stipulated by the agreement, that is, it is preset or the agreement stipulates that a certain layer 2 ID corresponds to the SL positioning service.
  • these messages carry information used to indicate which set of SL PRS configuration is sent for activation; or for the layer 2 ID of the SL PRS configuration level, the target UE determines which set of SL PRS configuration to use, and the destination layer ID of these messages ) Use the determined layer 2 ID corresponding to the SL PRS configuration.
  • Step 8 The anchor UE transmits SL PRS on the designated (activated) resource on the PC5 port.
  • Embodiments 1 and 2 are for scenarios with base station coverage (in coverage scenarios).
  • the sidelink can communicate with the base station.
  • This embodiment can be applied to out-of-coverage scenarios.
  • the main idea is: the anchor UE is pre-configured with one or more sets of SL PRS configurations, and the target UE broadcasts by using the SL positioning service or positioning QoS or the layer 2 ID associated with the SL PRS configuration. To activate the anchor UE sends the corresponding SL PRS. As shown in Figure 7, it includes the following steps:
  • Step 1 The anchor UE is pre-configured with one or more sets of SL PRS configurations or one or more positioning QoS, and the L2 ID associated with the sidelink positioning service is pre-configured or specified by the protocol; optionally, it is pre-configured or specified by the protocol.
  • Set SL PRS configuration or positioning QoS associated with a layer 2 ID is pre-configured with a layer 2 ID.
  • Step 2 The target UE obtains the layer 2 ID associated with the SL positioning service or positioning QoS or SL PRS configuration.
  • the target UE is preconfigured or the protocol specifies the L2 ID associated with the sidelink positioning service; optionally, the target UE is preconfigured or the protocol specifies that each positioning QoS is associated with a layer 2 ID
  • anchor UE broadcasts one or more sets of SL PRS configuration or positioning QoS on PC5 port, such as through Discovery message (for example, discovery announcement), or DIRECT LINK ESTABLISHMENT REQUEST message, or sidelink positioning protocol layer message.
  • This message The destination layer 2 ID uses the layer 2 ID corresponding to the SL positioning service in step 1, that is, the SL positioning service corresponds to a layer 2 ID.
  • these messages carry the layer 2 ID associated with each positioning QoS or each SL PRS configuration.
  • it also carries the location information of the anchor UE, such as latitude and longitude information.
  • the one or more positioning QoS may be, for example, high-precision positioning QoS, medium-precision positioning QoS, low-precision positioning QoS, etc.
  • Step 3 When the target UE needs SL positioning, the target UE broadcasts a message on the PC5 port to request the anchor UE to send SL PRS, such as through a Discovery message (for example, discovery announcement), or a DIRECT LINK ESTABLISHMENT REQUEST message, or the sidelink positioning protocol layer. news.
  • the destination layer 2 ID of this message uses the layer 2 ID corresponding to the SL positioning service, or the layer 2 ID corresponding to the positioning QoS, or the layer 2 ID corresponding to the SL PRS configuration.
  • the layer 2 ID corresponding to the positioning QoS or SL PRS configuration the target UE selects according to its own positioning QoS from the layer 2 ID corresponding to multiple positioning QoS or multiple SL PRS configurations. Determined, for example, when the UE requires high-precision positioning, select the layer 2 ID of high-precision positioning QoS or the layer 2 ID of the SL PRS configuration corresponding to high-precision positioning QoS.
  • Step 5 The anchor UE transmits SL PRS on the designated (activated) resource on the PC5 port.
  • the first terminal sends a first message, the first message is used to request activation: sending an SL positioning reference signal corresponding to the target SL positioning reference signal configuration;
  • the first terminal measures the SL positioning reference signal corresponding to the target SL positioning reference signal configuration.
  • This embodiment mainly describes the activation of SL PRS transmission by the core network, as shown in Figure 8, including the following steps:
  • the above message also carries the activation status of the SL PRS configuration (or SL PRS transmission resource).
  • the anchor UE When the activation status is activated, the anchor UE immediately uses these transmission resources to send SL PRS.
  • the activation status is inactive, the anchor UE The UE needs to wait for subsequent receipt of the activation command before sending the SL PRS.
  • the transmission resource of SL PRS can be configured grant type 1 resource or configured grant type 2 resource of mode1. Both of these resources are periodic authorization resources.
  • the anchor UE immediately uses these transmission resources to send SL PRS.
  • the base station can specify the resource pool where the configured grant type 1 resource is located.
  • the anchor UE needs to wait for subsequent receipt of the activation command before sending SL PRS. .
  • the transmission resources of SL PRS can also be resources dynamically scheduled by the base station in mode 1, or resources independently selected by the anchor UE in mode 2.
  • one or more resource pools that can be used to send SL PRS can be indicated.
  • SL PRS is a reference signal sent by the UE on the PC5 port that can be used for positioning measurements. It can be a newly introduced positioning reference signal on PC5, or it can reuse the reference signal of the existing PC5 port.
  • Requested PRS characteristic information (such as PRS bandwidth, PRS transmission cycle, etc.);
  • Requested QoS information such as positioning delay, positioning accuracy, etc.
  • Step 2 The anchor UE sends an RRC Reconfiguration Complete message to the base station; if the anchor UE receives the SL PRS configuration that needs to be sent immediately in step 1 (for example, the activation status is active, or the configuration is mode1 configured grant type 1 resource), the UE starts sending SL PRS on PC5 port, otherwise the configuration is saved but SL PRS is not sent.
  • the anchor UE sends an RRC Reconfiguration Complete message to the base station; if the anchor UE receives the SL PRS configuration that needs to be sent immediately in step 1 (for example, the activation status is active, or the configuration is mode1 configured grant type 1 resource), the UE starts sending SL PRS on PC5 port, otherwise the configuration is saved but SL PRS is not sent.
  • the location information of each anchor UE such as latitude and longitude information.
  • Step 4 The LMF sends a message to the base station, such as an Assistance Information Control message.
  • This message is used to provide the base station with assistance information broadcast by the base station.
  • the message carries posSIB or sidelink posSIB.
  • posSIBs or sidelink posSIBs carry the anchor UE's SL PRS configuration and associated SL resources.
  • sidelink posSIB can be considered as posSIB used for sidelink positioning.
  • these posSIBs or sidelink posSIBs may include SL PRS configurations and associated SL resources of multiple base stations (this base station and adjacent base stations) or multiple anchor UEs under multiple cells.
  • steps 3 and 4 are optional steps.
  • the positioning server can encrypt posSIB or sidelink posSIB, so that in subsequent step 5, only the authenticated UE can decrypt and use the information in these posSIB or sidelink posSIB.
  • Step 5 The base station broadcasts system information.
  • the broadcast system information includes SIB (for example, SIB12) or posSIB or sidelink posSIB, which includes the SL PRS configuration of the anchor UE and the associated SL resources.
  • Target UE obtains these SIB or posSIB or sidelink posSIB including SL PRS configuration.
  • each anchor UE can include one or more sets of SL PRS configurations, configuration index (if there are multiple sets) and resources corresponding to each set of configurations.
  • it also includes the positioning QoS corresponding to each set of SL PRS configurations. Used by target UE to choose which set of SL PRS configuration to use.
  • the ID information of each anchor UE such as the Layer 2 ID of the anchor UE.
  • the above system information can also broadcast the application code or restricted code corresponding to the positioning service.
  • steps 1 and 5 may not carry the above information, and the application code or restricted code corresponding to the broadcast positioning service may be preset.
  • Step 6 When the target UE needs positioning, the terminal selects one or more anchor UEs and/or the SL PRS configuration of the anchor UE based on the positioning QoS.
  • Step 8 The target UE receives the Discovery Announce sent by one or more anchor UEs. After receiving the message, in step 8, the anchor UE IDs of these UEs are sent to the core network node, such as Direct Discovery Name Management Function (DDNMF), and the core network sends messages (such as Announcing Alert messages) to these anchor UEs. To trigger the anchor UE to activate SL PRS transmission.
  • DDNMF Direct Discovery Name Management Function
  • Step 9 The core network node sends a message to the anchor UE to trigger SL PRS transmission.
  • Step 10 The anchor UE transmits SL PRS on the designated (activated) resource on the PC5 port.
  • Step 11 The target UE performs SL PRS measurement and obtains the position.
  • positioning based on PC5 port can be implemented as follows:
  • Method 1 The base station configures one or more sets of SL PRS configurations for the anchor UE, and the base station broadcasts this information through system information.
  • the target UE decides which anchor UE configuration to use, sends a message to the base station to request activation of the SL PRS corresponding to these PRS configurations, and then the base station activates the UE through MAC CE or DCI.
  • the PC5 interface sends this set of SL PRS configuration.
  • the system information can be SIB, posSIB, or sidelink posSIB;
  • System information may include SL PRS configurations and associated SL resources of multiple base stations (this base station and adjacent base stations) or multiple anchor UEs under multiple cells.
  • each anchor UE can include one or more sets of SL PRS configurations, configuration index (if there are multiple sets) and the resources corresponding to each set of configurations.
  • it also carries the location information of each anchor UE, such as Longitude and latitude information, or ID information of each anchor UE, such as the Layer 2 ID of anchor UE.
  • Target UE sends a message to the base station to request activation of SL PRS transmission.
  • the message can carry the anchor UE list and/or the SL PRS configuration index to be activated.
  • Method 2 The base station configures one or more sets of SL PRS configurations for the anchor UE, and the base station broadcasts this information through system information.
  • the target UE sends a broadcast message on the PC5 interface to request the anchor UE to activate and send SL PRS.
  • the broadcast message uses the layer 2 ID corresponding to the sidelink positioning service or specific SL PRS configuration.
  • the base station carries the layer 2 ID corresponding to the sidelink positioning service or specific SL PRS configuration in the message configuring the SL PRS configuration for the anchor UE, and the anchor UE monitors the message corresponding to the layer 2 ID to activate SL PRS transmission.
  • the system message carries the layer 2 ID corresponding to the sidelink positioning service or specific SL PRS configuration.
  • Target UE broadcasts a message to activate anchor UE to send SL PRS.
  • the message destination layer 2 ID uses the SL positioning service or the corresponding layer 2 ID configured by SL PRS.
  • Method 3 It can be applied to out-of-coverage scenarios without base stations.
  • the anchor UE is pre-configured with one or more sets of SL PRS configurations, and the target UE uses the SL positioning service or positioning QoS or the layer 2 ID associated with the SL PRS configuration. Broadcast to activate the anchor UE to send the corresponding SL PRS.
  • Method 4 The base station configures one or more sets of SL PRS configurations for the anchor UE, and the base station broadcasts this information through system information.
  • the Anchor UE sends a discovery announce message, and the target UE reports the detected anchor UE to the core network.
  • the core network triggers anchor UE to activate SL PRS sending.
  • Figure 9 is a structural diagram of a side link positioning device provided by an embodiment of the present application.
  • the side link positioning device 900 includes:
  • Execution module 904 is configured to perform SL positioning reference signal measurement based on the target SL positioning reference signal configuration.
  • the acquisition module 901 is used for:
  • M is a positive integer
  • the M terminals include the second terminal
  • the SL positioning reference signal configuration of the second terminal includes the N sets of side link SL positioning reference signal configurations.
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the information of the M terminals includes at least one of the following:
  • the identification information of the M terminals includes SL layer 2 identities of the M terminals.
  • the system information message includes a system information block, a positioning system information block, or an SL positioning system information block.
  • Receive a broadcast message from a second terminal device including: the SL positioning reference signal configuration of the second terminal, wherein the SL positioning reference signal configuration of the second terminal includes the N sets of side links SL positioning reference signal configuration.
  • the broadcast message also includes at least one of the following:
  • the location information of the second terminal is the location information of the second terminal.
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the first sending module 903 is used for:
  • the first message includes at least one of the following:
  • the identification information of the second terminal is the identification information of the second terminal.
  • the QoS information matches the target SL positioning reference signal configuration.
  • the first sending module 903 is used for:
  • the first message is broadcast on the PC5 interface, where the SL layer 2 identifier of the first message corresponds to the SL positioning service, or the SL layer 2 identifier of the first message corresponds to the target SL positioning reference signal configuration, or the The SL layer 2 identifier of the first message corresponds to the QoS corresponding to the target SL positioning reference signal configuration.
  • the identification information of the first terminal is preset or specified by the protocol.
  • the above-mentioned side link positioning device can improve the positioning performance of the terminal.
  • the side link positioning device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • the terminal may include but is not limited to the types of terminals listed in the embodiments of this application, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiments of this application.
  • NAS Network Attached Storage
  • the side link positioning device provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 2 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • Figure 10 is a structural diagram of another side link positioning device provided by an embodiment of the present application. As shown in Figure 10, the side link positioning device 1000 includes:
  • the first receiving module 1001 is used to receive an instruction message, the instruction message is used to request activation: send the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration, and the second terminal corresponding to the device is SL positioned.
  • the instruction message is used to request activation: send the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration, and the second terminal corresponding to the device is SL positioned.
  • the second terminal is preset with at least one of the following:
  • the autonomously selected resource is a resource selected by the second terminal through perception for sending the SL positioning reference signal.
  • the information sending device provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 4 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the communication interface is used to receive an instruction message, and the instruction message is used to request activation: sending the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration, the The second terminal corresponding to the device is an auxiliary terminal or an anchor terminal for SL positioning; based on the target SL positioning reference signal configuration, the SL positioning reference signal is sent.
  • This terminal embodiment corresponds to the above-mentioned first terminal and second terminal-side method embodiments. Each implementation process and implementation manner of the above-mentioned method embodiments can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 13 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 1300 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1310 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 13 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • the processor 1310 may include one or more processing units; optionally, the processor 1310 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1310.
  • the radio frequency unit 1301 or the processor 1310 is used to obtain the N sets of side link SL positioning reference signal configurations of the second terminal, where the first terminal is a target terminal for SL positioning, and the second terminal is an auxiliary terminal for SL positioning.
  • Terminal or anchor terminal N is a positive integer;
  • the radio frequency unit 1301 is also used to send a first message, the first message is used to request activation: send the SL positioning reference signal corresponding to the target SL positioning reference signal configuration; and perform SL based on the target SL positioning reference signal configuration. Positioning reference signal measurements.
  • system information message includes: SL positioning reference signal configurations of M terminals;
  • system information message also includes at least one of the following:
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the information of the M terminals includes at least one of the following:
  • the identification information of the M terminals includes SL layer 2 identities of the M terminals.
  • the system information message includes a system information block, a positioning system information block, or an SL positioning system information block.
  • the obtaining of N sets of side link SL positioning reference signal configurations of the second terminal includes:
  • Receive a broadcast message from a second terminal device including: the SL positioning reference signal configuration of the second terminal, wherein the SL positioning reference signal configuration of the second terminal includes the N sets of side links SL positioning reference signal configuration.
  • the broadcast message also includes at least one of the following:
  • the location information of the second terminal is the location information of the second terminal.
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • sending the first message includes:
  • the first terminal sends the first message to the radio access network device, where the first message includes at least one of the following:
  • the identification information of the second terminal is the identification information of the second terminal.
  • the QoS information matches the target SL positioning reference signal configuration.
  • sending the first message includes:
  • the first terminal broadcasts the first message on the PC5 interface, where the SL of the first message
  • the layer 2 identifier corresponds to the SL positioning service, or the SL layer 2 identifier of the first message corresponds to the target SL positioning reference signal configuration, or the SL layer 2 identifier of the first message corresponds to the target SL positioning reference signal configuration.
  • the reception indication message includes:
  • the target SL positioning reference signal configures associated transmission resources.
  • the radio frequency unit 1301 is also used to:
  • the configuration message includes N sets of SL positioning reference signal configurations, the target SL positioning reference signal configuration is a configuration in the N sets of SL positioning reference signal configurations, and N is a positive integer.
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the transmission resources corresponding to the transmission resource information include at least one of the following:
  • the first configuration authorization type resources the second configuration authorization type resources, dynamic scheduling resources and autonomous selection resources;
  • the first configuration authorization type resource is: the second terminal can directly send SL positioning Reference signal transmission resources;
  • the second configuration authorization type resource is: a transmission resource for the second terminal to send an SL positioning reference signal based on an activation command;
  • the dynamic scheduling resources are resources dynamically scheduled by the radio access network device for sending SL positioning reference signals
  • the autonomously selected resource is a resource selected by the second terminal through perception for sending the SL positioning reference signal.
  • the reception indication message includes:
  • the SL layer 2 identifier of the first message corresponds to the SL positioning service, or the SL layer 2 identifier of the first message corresponds to the target SL positioning reference signal configuration , or the SL layer 2 identifier of the first message corresponds to the QoS corresponding to the target SL positioning reference signal configuration.
  • the first message further includes: identification information of the target SL positioning reference signal configuration.
  • the radio frequency unit 1301 before receiving the first message broadcast by the first terminal on the PC5 interface, the radio frequency unit 1301 is also used to:
  • the broadcast message includes: the SL positioning reference signal configuration of the second terminal, where the SL positioning reference signal configuration of the second terminal includes the N sets of side link SL positioning reference signal configurations.
  • the broadcast message also includes at least one of the following:
  • the location information of the second terminal is the location information of the second terminal.
  • the above terminal can improve the positioning performance of the terminal.
  • the radio access network equipment 1400 includes: an antenna 1401, a radio frequency device 1402, a baseband device 1403, a processor 1404 and a memory 1405.
  • Antenna 1401 is connected to radio frequency device 1402.
  • the radio frequency device 1402 receives information through the antenna 1401 and sends the received information to the baseband device 1403 for processing.
  • the baseband device 1403 processes the information to be sent and sends it to the radio frequency device 1402.
  • the radio frequency device 1402 processes the received information and then sends it out through the antenna 1401.
  • the method performed by the radio access network device in the above embodiment can be implemented in the baseband device 1403, which includes a baseband processor.
  • the wireless access network device may also include a network interface 1406, which is, for example, a common public radio interface (CPRI).
  • a network interface 1406 which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the radio access network device 1400 in this embodiment of the present invention also includes: instructions or programs stored in the memory 1405 and executable on the processor 1404.
  • the processor 1404 calls the instructions or programs in the memory 1405 to execute the steps shown in Figure 9 It shows the execution method of each module and achieves the same technical effect. To avoid duplication, it will not be repeated here.
  • the radio frequency device 1402 is configured to send a system information message, where the system information message includes side link SL positioning reference signal configurations of M terminals;
  • M is a positive integer
  • the M terminals include a second terminal
  • the SL positioning reference signal configuration of the second terminal includes N sets of SL positioning reference signal configurations
  • the second terminal is an auxiliary terminal or anchor for SL positioning.
  • Point terminal N is a positive integer.
  • system information message also includes at least one of the following:
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the information of the M terminals includes at least one of the following:
  • the identification information of the M terminals includes SL layer 2 identities of the M terminals.
  • the system information message includes a system information block, a positioning system information block, or an SL positioning system information block.
  • the radio access network device receives a first message sent by a first terminal, where the first terminal is a target terminal for SL positioning, and the first message is used to request activation: sending a target SL positioning reference signal configuration corresponding to SL positioning reference signal.
  • the first message of the radio frequency device 1402 includes at least one of the following:
  • the identification information of the second terminal is the identification information of the second terminal.
  • the QoS information matches the target SL positioning reference signal configuration.
  • the radio frequency device 1402 is also used for:
  • the radio access network device sends an instruction message to the second terminal, where the instruction message is used to request activation: sending the SL positioning reference signal corresponding to the target side link SL positioning reference signal configuration.
  • the indication message includes at least one of the following:
  • the target SL positioning reference signal configures associated transmission resources.
  • the radio frequency device 1402 is also used to:
  • the radio access network device sends a configuration message to the second terminal, where the configuration message is used to configure N sets of SL positioning reference signal configurations, where N is a positive integer.
  • the configuration message is also used to include at least one of the following:
  • the target SL positioning reference signal is configured with an associated SL layer 2 identifier.
  • the transmission resources corresponding to the transmission resource information include at least one of the following:
  • the first configuration authorization type resources the second configuration authorization type resources, dynamic scheduling resources and autonomous selection resources;
  • the corresponding positioning service quality QoS information configured by the SL positioning reference signals of the M terminals;
  • the SL layer 2 identifier associated with the target SL positioning reference signal configuration is a registered trademark of Lucent Technologies Inc.
  • Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the side link positioning method or information provided by the embodiments of the present application is implemented. The steps of the sending method.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above side link positioning method or Each process of the embodiment of the information sending method can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above side link positioning method. Or each process of the embodiment of the information sending method, and can achieve the same technical effect, so to avoid repetition, they will not be described again here.
  • Embodiments of the present application also provide a side link positioning system, including: a first terminal, a second terminal and a wireless access network device.
  • the terminal can be used to perform the side link positioning method as described in the first aspect.
  • the second terminal may be configured to perform the steps of the side link positioning method described in the second aspect, and the radio access network device may be configured to perform the steps of the information sending method described in the third aspect.

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Abstract

La présente demande, qui appartient au domaine technique des communications, divulgue un procédé de positionnement de liaison latérale, un procédé d'envoi d'informations, un terminal, un serveur et un dispositif. Le procédé de positionnement de liaison latérale dans les modes de réalisation de la présente demande comprend : l'acquisition, par un premier terminal, de N ensembles de configurations de signal de référence de positionnement de liaison latérale (SL) d'un second terminal, le premier terminal étant un terminal cible pour un positionnement SL, le second terminal étant un terminal auxiliaire ou un terminal d'ancrage pour un positionnement SL, et N étant un entier positif ; la détermination, par le premier terminal, d'une configuration de signal de référence de positionnement SL cible parmi les N ensembles de configurations de signal de référence de positionnement SL ; l'envoi, par le premier terminal, d'un premier message, le premier message étant utilisé pour demander une activation : de l'envoi d'un signal de référence de positionnement SL correspondant à la configuration de signal de référence de positionnement SL ; et de la réalisation, par le premier terminal, d'une mesure de signal de référence de positionnement SL sur la base de la configuration de signal de référence de positionnement SL cible.
PCT/CN2023/092470 2022-05-11 2023-05-06 Procédé de positionnement de liaison latérale, procédé d'envoi d'informations, terminal, serveur et dispositif WO2023217025A1 (fr)

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