WO2024149140A1 - 信息传输方法、装置、核心网设备及终端 - Google Patents

信息传输方法、装置、核心网设备及终端 Download PDF

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Publication number
WO2024149140A1
WO2024149140A1 PCT/CN2024/070510 CN2024070510W WO2024149140A1 WO 2024149140 A1 WO2024149140 A1 WO 2024149140A1 CN 2024070510 W CN2024070510 W CN 2024070510W WO 2024149140 A1 WO2024149140 A1 WO 2024149140A1
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WIPO (PCT)
Prior art keywords
slpp
message
positioning session
positioning
session identifier
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English (en)
French (fr)
Inventor
张宏平
潘翔
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to an information transmission method, device, core network equipment and terminal.
  • the positioning is usually assigned by the access mobility management function (AMF) the Long Term Evolution Positioning Protocol (LPP) positioning session identifier, and the LPP session identifier (session ID) is carried in the non-access stratum (NAS).
  • AMF access mobility management function
  • LPP Long Term Evolution Positioning Protocol
  • NAS non-access stratum
  • the above positioning session identifier processing method is not applicable to the sidelink (or translated as secondary link, side link, side link, etc.) positioning architecture based on the positioning server (for example, the Location Management Function (LMF)).
  • LMF Location Management Function
  • the embodiments of the present application provide an information transmission method, apparatus, core network equipment and terminal to implement sidelink positioning based on positioning sessions.
  • a method for transmitting information comprising:
  • the core network device determines to adopt the sidelink positioning, the core network device sends the first information to the terminal;
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • an information transmission device which is applied to a core network device, including:
  • a first sending module configured to send first information to a terminal when it is determined that sidelink positioning is adopted
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • an information transmission method comprising:
  • the terminal receives the first information sent by the core network device
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; Alternatively, the first information includes: a first SLPP message, wherein the SLPP positioning session identifier information element included in the first SLPP message is set to be absent or is set to be an LPP positioning session identifier.
  • an information transmission device which is applied to a terminal, and includes:
  • a first receiving module used to receive first information sent by a core network device
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • a core network device comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.
  • a core network device including a processor and a communication interface, wherein the communication interface is used to send first information to a terminal when it is determined to adopt sidelink positioning;
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • a terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the third aspect are implemented.
  • a terminal comprising a processor and a communication interface, wherein the communication interface is used to receive first information sent by a core network device;
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • an information transmission system including: a core network device and a terminal, wherein the core network device can be used to execute the steps of the method described in the first aspect, and the terminal can be used to execute the steps of the method described in the third aspect.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect or the third aspect are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect or the third aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the third aspect.
  • a first sidelink is sent to the terminal.
  • the first information of the first SLPP message and the SLPP positioning session identifier is sent to the terminal, or the first information of the first SLPP message containing the SLPP positioning session identifier information element is set to be absent or set to the LPP positioning session identifier, so as to perform sidelink positioning based on the positioning session.
  • FIG1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;
  • FIG. 2 is a schematic diagram of a positioning architecture of a positioning technology based on a mobile network
  • FIG3 is a schematic diagram of a protocol stack for interaction between LMF and UE via the LPP protocol
  • FIG4 is a schematic diagram of a sidelink positioning architecture based on LMF
  • FIG6 is a schematic diagram of a positioning architecture without a positioning service terminal
  • FIG7 is a schematic diagram of a flow chart of an information transmission method according to an embodiment of the present application.
  • FIG8 is a schematic diagram of a specific application process of an embodiment of the present application.
  • FIG9 is a schematic diagram of a positioning session release process
  • FIG10 is a second schematic diagram of a specific application process of an embodiment of the present application.
  • FIG11 is a second flow chart of the information transmission method according to an embodiment of the present application.
  • FIG12 is a schematic diagram of a module of an information transmission device according to an embodiment of the present application.
  • FIG13 is a schematic diagram of the structure of a core network device according to an embodiment of the present application.
  • FIG14 is a second schematic diagram of a module of the information transmission device according to an embodiment of the present application.
  • FIG15 is a schematic diagram of the structure of a terminal according to an embodiment of the present application.
  • FIG. 16 is a schematic diagram of the structure of a communication device according to an embodiment of the present application.
  • first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
  • the technology described in the embodiments of the present application is not limited to the New Radio (NR) system, the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, It can also be used for other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described techniques can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies.
  • NR New Radio
  • 6G 6th Generation
  • FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (AR)/virtual reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle user equipment (VUE), a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (a home appliance with wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.), a game console, a personal computer (personal computer, PC), a teller machine or a self-service machine, a sensing service terminal, various sensors, a smart camera and other
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function or a radio access network unit.
  • the access network device may include a base station, a wireless local area network (WLAN) access point or a wireless fidelity (WiFi node, etc.).
  • WLAN wireless local area network
  • the base station may be called a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting receiving point (TRP), a perception signal sending device, a perception information receiving device or some other suitable term in the field.
  • eNB evolved node B
  • BTS basic service set
  • ESS extended service set
  • TRP transmitting receiving point
  • the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present 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.
  • the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management ...
  • MME mobility management entity
  • AMF Access Mobility Management Function
  • SMF Session Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • Policy Control Function Policy Control Function
  • PCRF Policy and Charging Rules Function
  • edge application service discovery function Edge Application Server Discovery Function, EASDF
  • unified data management Unified Data Management ...
  • UPF User Plane Function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF user plane function
  • UPF User Plane Function Data Management
  • UDM Unified Data Repository
  • HSS Home Subscriber Server
  • CNC Centralized network configuration
  • NRF Network Repository Function
  • NEF Network Exposure Function
  • L-NEF Local NEF
  • BF Binding Support Function
  • AF Application Function
  • the UE sends an uplink positioning reference signal, such as a sounding reference signal (SRS), and the base station performs measurements.
  • an uplink positioning reference signal such as a sounding reference signal (SRS)
  • SRS sounding reference signal
  • the UE measures the signals from the navigation satellite
  • the positioning architecture is shown in Figure 2, where the location management function (LMF) in Figure 2 is the positioning server.
  • LMF location management function
  • TP Transmission Point
  • TRP Transmission and Receiving Point
  • E-SMLC Evolved Serving Mobile Location Centre
  • SLP Service Location Protocol
  • LMF Long Term Evolution Positioning Protocol
  • Figure 3 The LMF and UE interact through the Long Term Evolution Positioning Protocol (LPP), and the protocol stack is shown in Figure 3.
  • LPF Long Term Evolution Positioning Protocol
  • RRC in Figure 3 is Radio Resource Control (RRC)
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • SCTP Stream Control Transmission Protocol
  • TLS Transport Layer Security
  • TCP Transmission Control Protocol
  • HTTP Hyper Text Transfer Protocol
  • AMF receives a positioning service request for a certain terminal from a third party, a terminal or itself. If the terminal is in the Connection Management IDLE (CM-IDLE) state at this time, the Access and Mobility Management Function (AMF) pages the UE to trigger the UE to enter the CM-CONNECTED state (the corresponding state of the terminal in the air interface is the RRC connected state), and then the AMF sends a positioning service request to the positioning server LMF.
  • the LMF determines the positioning method based on the Uu interface. The positioning method is divided into uplink-based positioning and downlink-based positioning. Then the LMF initiates a specific positioning process to obtain the location of the terminal.
  • the LMF may need to interact with the terminal through the LPP protocol and/or with the base station through the new air interface location protocol A (NR positioning protocol A, NRPPa) protocol, such as interactive capabilities, interactive positioning assistance data, interactive positioning measurement results, etc.
  • LMF sends a positioning service response to the AMF, carrying the terminal s position.
  • a positioning process includes multiple message interactions involved in a positioning (task) for a target UE, such as positioning capability transmission, positioning assistance data interaction, and location information interaction.
  • the terminal initiates a positioning request for itself.
  • a third party also initiates a positioning request for the target UE.
  • QoS quality of service
  • LMF also needs to perform another positioning process for the positioning request initiated by the third party.
  • the Third Generation Partnership Projects (3GPP) introduced the concept of positioning session, which is used to associate messages of the same positioning process (corresponding to the same positioning request) together. Since the protocol for the messages exchanged between the UE and the LMF is the LPP protocol, it is called LPP session.
  • the LPP message is carried on the non-access stratum (NAS) message and sent to the UE.
  • NAS non-access stratum
  • the LPP positioning session ID is reflected in the NAS layer, that is, an information element of the NAS message carrying the LPP message is used to indicate the positioning session ID, which is called the correlation ID in the NAS layer.
  • the Correlation ID is a variable-length string.
  • the Correlation ID is allocated by the network, usually by the AMF after the AMF receives the positioning request, and the AMF indicates the Correlation ID corresponding to the LPP message when exchanging LPP messages with the LMF, so that the LMF can associate the LPP message with the corresponding positioning session after receiving the LPP message from the AMF; after receiving the LPP message from the LMF, the AMF can put the correlation ID and the LPP message into the NAS message and send it to the UE, so that the UE can associate the LPP message with the corresponding LPP positioning session.
  • LTE Long Term Evolution
  • LTE sidelink is based on broadcast communication. Although it can be used to support basic safety communications of vehicle to everything (V2X), it is not suitable for other more advanced V2X services.
  • 5G fifth generation mobile communication technology
  • 5G NR New Radio
  • the LTE system has supported sidelinks since the 12th release, which are used for direct data transmission between UEs without going through network equipment.
  • 3GPP needs to introduce sidelink positioning based on PC5 port (SL positioning for short) in R18, that is, measuring the Sidelink PRS of PC5 port for positioning.
  • SL positioning the current standard agrees to introduce the following roles:
  • Target UE The target UE to be positioned. Positioning requires obtaining the absolute position, relative position or ranging of the UE.
  • Anchor UE A UE that supports positioning of the target UE, for example by sending and/or receiving SL PRS (sidelink positioning reference signal) and providing positioning-related information.
  • SL PRS sidelink positioning reference signal
  • SL positioning based on a positioning server e.g., LMF
  • the positioning server is responsible for controlling the execution of SL positioning.
  • the difference is that SL positioning involves at least two UEs (one target UE and one or more anchor UEs).
  • the UE measures the SL PRS sent by other UEs to achieve positioning.
  • the specific architecture diagram is shown in Figure 4.
  • Architecture 1 is only applicable to scenarios where the target UE and/or anchor UE are within the network coverage, and is not applicable to scenarios where both the target UE and anchor UE are outside the network coverage.
  • SL positioning not based on (not related to) positioning server For this architecture, positioning can be achieved by interaction between multiple UEs without involving communication network nodes. It is not yet determined whether one of the UEs (Positioning Server UE) will assume functions similar to LMF. Therefore, there may be the following two possible architectures:
  • Positioning Server UE is a UE that provides positioning service functions. Positioning Server UE receives sidelink positioning requests carrying positioning QoS or triggers sidelink positioning requirements by itself, and then determines the positioning method used in sidelink positioning, positioning configuration information, and which UEs participate in positioning as anchor UEs based on positioning QoS. In a sidelink positioning process, Positioning Server UE can be a separate role (UE) or a role that also serves as a target UE (in this case, Positioning Server UE positions itself). In a sidelink positioning process, a UE can serve as a Positioning Server UE, and in another sidelink positioning process, this UE may not serve as a Positioning Server UE, for example, only as an anchor UE. It should be noted that Positioning Server UE plays a role in controlling the execution of sidelink positioning in a positioning process, and may also be called by other names, such as controlling UE, which is not limited here.
  • Positioning Server UE can also play the role of anchor UE, in the above architecture, in some scenarios, there may not be a separate anchor UE.
  • the Positioning Server UE can be the same UE as the target UE, or they can be different UEs.
  • Architecture 2 can be applicable to the scenario where both the target UE and the anchor UE are outside the network coverage, and can also be applicable to the scenario where the target UE and/or anchor UE are within the network coverage.
  • the standard has agreed to introduce a new protocol layer between UEs for Sidelink positioning, called Sidelink Positioning Protocol (SLPP).
  • This protocol layer is used for positioning message exchange of SL positioning.
  • the SLPP protocol layer may be located at the Packet Data Convergence Protocol (PDCP) layer or PC5-S layer, and there is no conclusion yet.
  • PDCP Packet Data Convergence Protocol
  • the Positioning Server UE receives a positioning request carrying positioning QoS and target UE ID, or the Positioning Server UE itself is triggered and needs to locate the target UE or itself (that is, the Positioning Server UE is also the target UE), then the Positioning Server UE identifies/determines the anchor UE involved in positioning and determines the positioning method based on information such as positioning QoS, then the Positioning Server UE uses the sidelink positioning protocol (such as the SLPP protocol in the above figure) to perform sidelink positioning to obtain the sidelink positioning result, specifically, it interacts with the target UE and the Anchor UE with sidelink positioning protocol messages, including, for example, providing positioning assistance information (configuring SL PRS measurement), requesting location information, receiving sidelink positioning measurements, etc.
  • sidelink positioning protocol such as the SLPP protocol in the above figure
  • LMF uses LPP protocol to exchange information such as positioning measurement of Uu interface with UE. There is no conclusion on how LMF exchanges information such as positioning measurement of PC5 interface with target UE or anchor UE.
  • One of the mainstream methods is to reuse SLPP protocol in architecture 2 to reduce the work of protocol development.
  • SLPP message is a container in LPP message or NAS message. At this time, it can be considered that SLPP protocol is located in the upper layer of LPP protocol or NAS protocol.
  • an embodiment of the present application provides an information transmission method, including:
  • Step 701 When the core network device determines to adopt sidelink positioning, the core network device sends first information to the terminal;
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or,
  • the first information includes: a first SLPP message, wherein the SLPP positioning session identifier information element included in the first SLPP message is set to be absent or set to be an LPP positioning session identifier.
  • the core network device in the implementation of this application may be LMF.
  • the SLPP positioning session identifier and the LPP positioning session identifier may be in a one-to-one relationship, that is, in one LPP session, the core network device can only allocate one SLPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier may also be in a many-to-one relationship, that is, corresponding to an LPP session for a positioning request, the core network device may initiate multiple sidelink positioning, and each sidelink positioning is assigned an SLPP positioning session identifier.
  • a positioning request requires the core network device to perform multiple sidelink positioning, and after obtaining the results of these multiple sidelink positioning, it generates a positioning result corresponding to the positioning request.
  • the LPP session and the SLPP session may be in a superior-subordinate relationship, that is, different SLPP sessions are further distinguished under one LPP session.
  • the combination of the LPP positioning session identifier and the SLPP positioning session identifier represents an SLPP session.
  • the core network device when determining to adopt sidelink positioning, sends the first information to the terminal in a specific implementation manner, including:
  • the core network device When the core network device determines to adopt the sidelink positioning, the core network device allocates an SLPP positioning session identifier for the sidelink positioning;
  • the core network device sends the first SLPP message and the SLPP positioning session identifier to the terminal.
  • the core network device determines to adopt sidelink positioning, it needs to establish an SLPP positioning session for this sidelink positioning, allocate an SLPP positioning session identifier, and then send the first SLPP message and the SLPP positioning session identifier to the terminal.
  • a specific implementation manner in which the core network device sends the first SLPP message and the SLPP positioning session identifier to the terminal includes one of the following:
  • the core network device sends a first LPP message and an LPP positioning session identifier corresponding to the first LPP message to the terminal, where the first LPP message includes the first SLPP message, and the first SLPP message includes the SLPP positioning session identifier;
  • the core network device usually does not communicate directly with the terminal, and the core network device needs to send relevant information to the terminal through AMF.
  • the core network device sends a first LPP message and an LPP positioning session identifier corresponding to the first LPP message to the AMF, and the first LPP message includes a container, and the container corresponds to the first SLPP message.
  • the first SLPP message includes the SLPP positioning session identifier, that is, the SLPP positioning session identifier is used as an information element of the SLPP message.
  • the AMF After receiving it, the AMF generates a NAS message and sends it to the UE.
  • the NAS message includes the corresponding LPP positioning session identifier and a container, and the container corresponds to the first LPP message.
  • the terminal parses the NAS message at the NAS layer to obtain the first LPP message and the corresponding LPP positioning session identifier, and delivers the first LPP message and its corresponding LPP positioning session identifier to the LPP protocol layer.
  • the LPP layer of the UE further parses the first LPP message to obtain the first SLPP message, and delivers the first SLPP message to the SLPP protocol layer.
  • the SLPP protocol layer parses the first SLPP message, thereby obtaining the SLPP positioning session identifier associated with the first SLPP message.
  • the core network device sends a first LPP message and an LPP positioning session identifier corresponding to the first LPP message to the terminal, where the first LPP message includes the first SLPP message and the SLPP positioning session identifier;
  • the core network device sends a first LPP message and an LPP positioning session identifier corresponding to the first LPP message to the AMF, and the first LPP message includes a container, and the container corresponds to the first SLPP message.
  • the first LPP message includes the SLPP positioning session identifier corresponding to the first SLPP message, that is, the SLPP positioning session identifier serves as an information element of the first LPP message.
  • the AMF After receiving the message, the AMF generates a NAS message and sends it to the UE.
  • the NAS message includes the corresponding LPP positioning session identifier and a container, and the container corresponds to the first LPP message.
  • the terminal parses the NAS message at the NAS layer and obtains the first LPP
  • the UE's LPP layer further parses the first LPP message to obtain the first SLPP message and the associated SLPP positioning session identifier, and delivers the first SLPP message and the associated SLPP positioning session identifier to the SLPP protocol layer.
  • the core network device sends the first SLPP message to the terminal through a non-access layer message, where the non-access layer message includes the SLPP positioning session identifier;
  • the core network device sends a first SLPP message and a SLPP positioning session identifier corresponding to the first SLPP message to the AMF.
  • the AMF After receiving the message, the AMF generates a NAS message and sends it to the UE.
  • the NAS message includes the SLPP positioning session identifier corresponding to the first SLPP message and a container, and the container corresponds to the first SLPP message.
  • the terminal parses the NAS message at the NAS layer to obtain the first SLPP message and the corresponding SLPP positioning session identifier, and delivers the first SLPP message and its associated SLPP positioning session identifier to the SLPP protocol layer.
  • the first SLPP message may be a positioning session establishment request message.
  • the first SLPP message may be a newly introduced positioning session establishment request message.
  • the positioning session establishment request message may carry other SLPP messages or the content of other SLPP messages, such as a message providing auxiliary data or a message requesting positioning capability or its content.
  • the first SLPP message may also include first indication information, where the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the positioning session identifiers are allocated by the core network device and other UEs respectively, and the positioning session identifiers allocated by the two may be the same, which causes a conflict in the positioning session identifier, which may cause the SLPP message of one positioning process (positioning session) to be associated with another positioning process (positioning session), causing positioning confusion and leading to positioning failure.
  • the following methods can be adopted:
  • the location session identifier is an integer sequence number or a string. However, if the range of the integer is large enough or the string is long enough, although there is still a conflict in theory, the probability of the conflict is small enough to be ignored.
  • This situation can be understood as different positioning processes using different positioning session identifiers, so as to avoid different positioning processes using the same positioning session identifier.
  • the SLPP positioning session identifier includes information about the allocator of the SLPP positioning session identifier
  • the SLPP positioning session identifier consists of at least two parts, one of which is the information indicating the allocator of the SLPP positioning session identifier (such as the type of allocator (LMF or non-LMF) or terminal), or the identifier of the allocator), and the other part is a serial number or a character string.
  • the terminal After the terminal receives the first information sent by the core network device, the terminal establishes a first SLPP positioning session according to the SLPP positioning session identifier, and associates the first SLPP message to the first SLPP positioning session; or associates the first SLPP message to the second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first information includes the first SLPP message and the SLPP positioning session identifier.
  • the terminal establishes a first SLPP positioning session (that is, a new SLPP positioning session) based on the SLPP positioning session identifier, and associates the first SLPP message to the first SLPP positioning session; or, if the SLPP positioning session identifier is a SLPP positioning session identifier that already exists in the terminal, the terminal associates the first SLPP message to the second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the UE determines that the received SLPP positioning session identifier is a new SLPP positioning session identifier (that is, the SLPP positioning session identifier does not exist in the context of the UE, and there is no positioning session corresponding to the SLPP positioning session identifier), then a new SLPP positioning session is established and the SLPP positioning session identifier is associated with the newly established SLPP positioning session; if the received SLPP positioning session identifier already exists, the first SLPP message is associated with the positioning session associated with the SLPP positioning session identifier.
  • the UE directly establishes a new SLPP positioning session and associates the SLPP positioning session identifier with the newly established SLPP positioning session.
  • the method further includes:
  • the core network device receives a second SLPP message sent by the terminal
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the above B11 and B12 are applicable to the case where the first information includes the first SLPP message and the SLPP positioning session identifier.
  • the SLPP positioning session identification information element included in the second SLPP message is set to absent
  • the first information includes a first SLPP message
  • the SLPP positioning session identification information element included in the first SLPP message is set to be absent.
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier
  • the first information including the first SLPP message, wherein the first SLPP message
  • the SLPP positioning session identifier information element included in is set to the LPP positioning session identifier.
  • the positioning session needs to be released. Specifically, when the first condition is met, the terminal releases the SLPP positioning session corresponding to the SLPP positioning session identifier;
  • the first condition includes at least one of the following:
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the release of the positioning session is triggered by the core network device, that is, the core network device sends a third SLPP message to the terminal, and the terminal releases the SLPP positioning session corresponding to the SLPP positioning session identifier under the instruction of the third SLPP message.
  • This situation can be understood as an explicit indication of the release of the positioning session.
  • the terminal completes the measurement and sends the corresponding measurement result
  • the terminal automatically releases the positioning session after completing the measurement and sending the corresponding measurement results (such as sending a location information provision message). Further optionally, the terminal can release the positioning session after completing the measurement and sending the corresponding measurement results and reaching the required number of measurement result reports; or the terminal automatically releases the positioning session after completing the measurement and sending the corresponding measurement results and reaching the required reporting time.
  • C13 The terminal does not receive a second target SLPP message of the SLPP positioning session within a first preset time period after receiving the first target SLPP message of the SLPP positioning session;
  • the first preset time period may be agreed upon by a protocol or configured by a network device.
  • a timer can be started.
  • the timer expires, if the next SLPP message for the SLPP positioning session sent by the core network device is not received, the positioning session is released; or before the timer expires, if the next SLPP message for the SLPP positioning session sent by the core network device is received, the timer is restarted.
  • the above-mentioned explicit indication method and implicit indication can be used in combination, for example, releasing after receiving a release message or release indication. If no release message or release indication is received, but no SLPP message of this positioning session is received within a period of time, the positioning session is released.
  • the main idea of this application is that the SLPP session and the LPP session exist independently.
  • the LPP session reuses the mechanism in the related technology, that is, the AMF allocates the LPP positioning session ID (LPP session ID), for example, correlation
  • LPP session ID For SLPP session, when LMF determines to use sidelink positioning, it allocates SLPP positioning session identifier for this sidelink positioning, and SLPP session ID is carried in LPP message, SLPP message or NAS message.
  • Figure 8 The main implementation process is shown in Figure 8, which specifically includes:
  • Step 80 After receiving the positioning request, AMF allocates LPP session ID (correlation ID) for this positioning.
  • LPP session ID correlation ID
  • AMF sends a positioning request to LMF.
  • the positioning request includes the positioning service quality (Quality of Service, QoS) and LPP session ID.
  • Step 82 LMF determines to use sidelink positioning, LMF establishes an SLPP positioning session for this sidelink positioning, and allocates an SLPP session ID.
  • the SLPP session ID and the LPP session ID can be in a one-to-one relationship, that is, the LMF can only allocate one SLPP session ID in one LPP session.
  • the SLPP session ID and the LPP session ID can also be in a many-to-one relationship, that is, corresponding to an LPP session for a positioning request, the LMF can initiate multiple sidelink positioning, and each sidelink positioning is assigned an SLPP session ID.
  • a positioning request requires the LMF to perform multiple sidelink positioning, and after obtaining the results of these multiple sidelink positioning, it generates the positioning results corresponding to the positioning request.
  • the LPP session and the SLPP session can be in a superior-subordinate relationship, that is, different SLPP sessions are further distinguished under one LPP session.
  • the combination of LPP session ID + SLPP session ID represents one SLPP session.
  • Step 83 LMF sends a first SLPP message to the UE, where the first SLPP message includes or is associated with the SLPP session ID allocated in step 82.
  • the following solutions may be possible:
  • LMF sends an LPP message and the LPP session ID corresponding to the LPP message to AMF.
  • the LPP message includes a container corresponding to the first SLPP message.
  • the first SLPP message includes the SLPP positioning session identifier, that is, the SLPP positioning session identifier is used as an information element of the SLPP message.
  • the AMF After receiving the message, the AMF generates a NAS message and sends it to the UE.
  • the NAS message includes the corresponding LPP session ID and a container corresponding to the LPP message.
  • LMF sends an LPP message and the LPP session ID corresponding to the LPP message to AMF.
  • the LPP message includes a container corresponding to the first SLPP message.
  • the LPP message includes the SLPP positioning session identifier corresponding to the first SLPP message, that is, the SLPP positioning session identifier is used as an information element of the LPP message.
  • the AMF After receiving the message, the AMF generates a NAS message and sends it to the UE.
  • the NAS message includes the corresponding LPP session ID and a container corresponding to the LPP message.
  • Solution 3 LMF sends the first SLPP message and the SLPP session ID corresponding to the first SLPP message to AMF. After receiving the message, the AMF generates a NAS message and sends it to the UE.
  • the NAS message includes the corresponding SLPP session ID and a container, and the container corresponds to the first SLPP message.
  • the NAS layer parses the NAS message to obtain the LPP message and the corresponding LPP session ID.
  • the LPP message and its corresponding LPP session ID are submitted to the LPP protocol layer.
  • the LPP layer of the UE further parses the LPP message to obtain a first SLPP message, and submits the first SLPP message to the SLPP protocol layer.
  • the SLPP protocol layer parses the first SLPP message to obtain the SLPP session ID associated with the first SLPP message.
  • the NAS layer After parsing the NAS message, the NAS layer obtains the LPP message and the corresponding LPP session ID, and delivers the LPP message and the corresponding LPP session ID to the LPP protocol layer.
  • the UE's LPP layer further parses the LPP message to obtain the first SLPP message and its associated SLPP session ID, and delivers the first SLPP message and its associated SLPP session ID to the SLPP protocol layer.
  • the NAS layer After parsing the NAS message, the NAS layer obtains the SLPP message and the corresponding SLPP session ID, and submits the first SLPP message and its associated SLPP session ID to the SLPP protocol layer.
  • the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message can be a capability information request message, a provision assistance data message, or a location information request message.
  • Step 84 After receiving the first SLPP message, the UE establishes a new SLPP positioning session based on the SLPP session ID, or associates the first SLPP message to the positioning session associated with the SLPP session ID.
  • Specific implementation methods may include:
  • the UE determines that the SLPP session ID is a new SLPP session ID (i.e., the SLPP session ID does not exist in the context of the UE and there is no positioning session corresponding to the SLPP session ID), it will establish a new SLPP positioning session and associate the SLPP session ID with the newly established positioning session; if it already exists, the first SLPP message will be associated with the positioning session associated with the SLPP session ID.
  • the UE establishes a new SLPP positioning session and associates the SLPP session ID to the newly established SLPP positioning session.
  • the SLPP layer of the UE generates a second SLPP message, and the second SLPP message includes a SLPP positioning session identifier.
  • the second SLPP message is submitted to the LPP layer of the UE, and the LPP layer generates a second LPP message, and the second LPP message includes a container corresponding to the second SLPP message.
  • the second LPP message and the corresponding LPP session ID are submitted to the NAS layer of the UE, and the NAS layer of the UE generates a NAS message and sends it to the AMF, and the NAS message includes the second LPP message and the corresponding LPP session ID.
  • the AMF After receiving the NAS message, the AMF submits the second LPP message and the corresponding LPP session ID therein to the LMF.
  • the LMF parses the second LPP message to obtain the second SLPP message, and further parses the second SLPP message to obtain the SLPP positioning session identifier, thereby obtaining the SLPP session ID associated with the second SLPP message.
  • the AMF After receiving the NAS message, the AMF delivers the LPP message and the corresponding LPP session ID therein to the LMF.
  • the LMF parses the LPP message to obtain the second SLPP message and the corresponding SLPP positioning session identifier, thereby obtaining the SLPP session ID associated with the second SLPP message.
  • the SLPP layer of the UE generates a second SLPP message.
  • the second SLPP message and the corresponding SLPP session ID are delivered to the NAS layer of the UE, and the NAS layer of the UE generates a NAS message and sends it to the AMF, the NAS message including the second SLPP message and the corresponding SLPP session ID.
  • the AMF delivers the SLPP message and the corresponding SLPP session ID to the LMF.
  • the LMF associates the second SLPP message with the positioning session associated with the positioning session identifier.
  • the LMF still uses the allocated positioning session identifier to communicate with the UE.
  • the SLPP positioning session identifier is used to associate the SLPP messages exchanged between multiple UEs involved in a positioning process into the same positioning session, avoiding confusion in positioning in multiple concurrent positioning process scenarios.
  • the positioning session needs to be released in a timely manner. There are the following ways to release the positioning session:
  • the main process includes:
  • Step 91 LMF sends a third SLPP message to the UE
  • the third SLPP message may be a positioning session release request or a positioning session release command message, or the third SLPP message includes second indication information, and the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • Step 92 After receiving the third SLPP message, the UE releases the corresponding positioning session.
  • Step 93 The UE sends a fourth SLPP message to the LMF
  • the fourth SLPP message carries the SLPP positioning session identifier.
  • the fourth SLPP message is a release response message, such as a positioning session release complete message.
  • Step 94 LMF releases the corresponding positioning session.
  • the UE After the UE completes the measurement and sends the corresponding measurement result (such as sending a location information providing message), the UE automatically releases the positioning session. Optionally, the UE automatically releases the positioning session after reaching the required number of measurement result reports or the required reporting time.
  • the session is released after a period of time after no SLPP message of the same SLPP session is received. Specifically, After receiving the SLPP message of the same session, the timer is started or reset, and the session is released after the timer times out.
  • method 1 and method 2 can be used in combination, for example, releasing after receiving a release message or a release indication. If no release message or release indication is received, but no SLPP message of this positioning session is received within a period of time, the positioning session is released.
  • Application scenario 2 No independent SLPP session, or SLPP session reuses/shares LPP session
  • the main idea of this application is that in the LMF-based sidelink positioning scenario, there is no independent SLPP session, or the SLPP session reuses/shares the LPP session (in the non-LMF-based sidelink positioning scenario, the corresponding SLPP message includes the SLPP session ID).
  • the SLPP session ID information element in the SLPP message is always set to absent, or the SLPP session ID information element in the SLPP message is always set to the corresponding LPP session ID.
  • the main process includes:
  • Step 1000 After receiving the positioning request, AMF allocates LPP session ID (correlation ID) for this positioning.
  • LPP session ID correlation ID
  • Step 1001 AMF sends a positioning request to LMF, and the positioning request includes positioning QoS and LPP session ID.
  • Step 1002 LMF determines to use sidelink positioning.
  • Step 1003 LMF sends a first SLPP message to the UE, and the SLPP session ID information element included in the first SLPP message is set to absent, or is set to the corresponding LPP session ID.
  • Step 1004 The UE sends a second SLPP message to the LMF, and the SLPP session ID information element included in the second SLPP message is set to absent, or is set to the corresponding LPP session ID.
  • an embodiment of the present application provides an information transmission method, including:
  • Step 1101 the terminal receives first information sent by the core network device
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier are in a one-to-one relationship, or the SLPP positioning session identifier and the LPP positioning session identifier are in a many-to-one relationship.
  • the terminal receives first information sent by a core network device, including one of the following:
  • the terminal receives a first LPP message sent by the core network device and an LPP positioning session identifier corresponding to the first LPP message, where the first LPP message includes the first SLPP message, and the first SLPP message includes the SLPP positioning session identifier;
  • the terminal receives a first LPP message sent by the core network device and an LPP positioning session identifier corresponding to the first LPP message, where the first LPP message includes the first SLPP message and the SLPP positioning session identifier;
  • the terminal receives a first SLPP message sent by the core network device through a non-access layer message, where the non-access layer message includes the SLPP positioning session identifier.
  • the first SLPP message is a positioning session establishment request message, or the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the SLPP positioning session identifier includes information about a distributor of the SLPP positioning session identifier.
  • the method further includes:
  • the terminal establishes a first SLPP positioning session according to the SLPP positioning session identifier, and associates the first SLPP message with the first SLPP positioning session; or associates the first SLPP message with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the terminal establishes a first SLPP positioning session according to the SLPP positioning session identifier, and associates the first SLPP message with the first SLPP positioning session; or associates the first SLPP message with a second SLPP positioning session corresponding to the SLPP positioning session identifier, and the specific implementation method is:
  • a first SLPP positioning session is established based on the SLPP positioning session identifier, and the first SLPP message is associated with the first SLPP positioning session; or, if the SLPP positioning session identifier is a SLPP positioning session identifier that already exists for the terminal, the first SLPP message is associated with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the method further includes:
  • the terminal sends a second SLPP message to the core network device
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes a SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the second SLPP message is associated with the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the SLPP positioning session identification information element included in the second SLPP message is set to be absent
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier.
  • the method further includes:
  • the terminal releases the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the terminal releases the SLPP positioning session corresponding to the SLPP positioning session identifier, and the implementation method is:
  • the first condition includes at least one of the following:
  • the terminal completes the measurement and sends the corresponding measurement results
  • the terminal does not receive a second target SLPP message of the SLPP positioning session within a first preset time period after receiving the first target SLPP message of the SLPP positioning session.
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the information transmission method provided in the embodiment of the present application can be executed by an information transmission device.
  • the information transmission device provided in the embodiment of the present application is described by taking the information transmission method executed by the information transmission device as an example.
  • an information transmission device 1200 is applied to a core network device, including:
  • the first sending module 1201 sends first information to the terminal when it is determined to adopt the sidelink positioning
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier are in a one-to-one relationship, or the SLPP positioning session identifier and the LPP positioning session identifier are in a many-to-one relationship.
  • the first sending module 1201 includes:
  • an allocating unit configured to allocate an SLPP positioning session identifier for the sidelink positioning when it is determined to adopt the sidelink positioning
  • a sending unit is used to send the first SLPP message and the SLPP positioning session identifier to the terminal.
  • the sending unit is used to implement one of the following:
  • the first SLPP message is sent to the terminal via a non-access layer message, where the non-access layer message includes the SLPP positioning session identifier.
  • the first SLPP message is a positioning session establishment request message, or the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the SLPP positioning session identifier includes information about a distributor of the SLPP positioning session identifier.
  • the device further includes:
  • a second receiving module configured to receive a second SLPP message sent by the terminal
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes a SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the second SLPP message is associated with the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the SLPP positioning session identification information element included in the second SLPP message is set to be absent
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier.
  • the device further includes:
  • the second sending module is used to send a third SLPP message to the terminal, where the third SLPP message is used to instruct the terminal to release the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the core network device is a positioning management function.
  • the device embodiment is a device corresponding to the above-mentioned method. All implementation methods in the above-mentioned method embodiment are applicable to the device embodiment and can achieve the same technical effect, which will not be repeated here.
  • the embodiment of the present application further provides a core network device, including a processor and a communication interface, wherein the communication interface is used to send first information to a terminal when it is determined to adopt sidelink positioning;
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier are in a one-to-one relationship, or the SLPP positioning session identifier and the LPP positioning session identifier are in a many-to-one relationship.
  • the processor is configured to:
  • the communication interface is used to send the first SLPP message and the SLPP positioning session identifier to the terminal.
  • the communication interface is used to implement one of the following:
  • the first SLPP message is sent to the terminal via a non-access layer message, where the non-access layer message includes the SLPP positioning session identifier.
  • the first SLPP message is a positioning session establishment request message, or the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the SLPP positioning session identifier includes information about a distributor of the SLPP positioning session identifier.
  • the communication interface is further used for:
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes a SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the second SLPP message is associated with the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the SLPP positioning session identification information element included in the second SLPP message is set to be absent
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier.
  • the communication interface is further used for:
  • a third SLPP message is sent to the terminal, where the third SLPP message is used to instruct the terminal to release the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the core network device is a positioning management function.
  • an embodiment of the present application also provides a core network device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
  • a core network device including a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
  • the program or instruction is executed by the processor, the various processes of the above-mentioned information transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application further provides a core network device, as shown in FIG13 , the core network device 1300 includes: a processor 1301, a network interface 1302 and a memory 1303.
  • the network interface 1302 is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the core network device 1300 of the embodiment of the present application further includes: instructions or programs stored in the memory 1303 and executable on the processor 1301, and the processor 1301 calls the instructions or programs in the memory 1303 to execute the instructions shown in FIG.
  • the method for executing each module is shown in the following figure, and the same technical effect is achieved. To avoid repetition, it will not be described here.
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the various processes of the above-mentioned information transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the network side device described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • an information transmission device 1400 As shown in FIG. 14 , an information transmission device 1400 according to an embodiment of the present application, applied to a terminal, includes:
  • the first receiving module 1401 is used to receive first information sent by a core network device
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier are in a one-to-one relationship, or the SLPP positioning session identifier and the LPP positioning session identifier are in a many-to-one relationship.
  • the first receiving module 1401 is configured to implement one of the following:
  • a first SLPP message sent by the core network device through a non-access layer message is received, where the non-access layer message includes the SLPP positioning session identifier.
  • the first SLPP message is a positioning session establishment request message, or the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the SLPP positioning session identifier includes information about a distributor of the SLPP positioning session identifier.
  • the device further includes:
  • the association module is used to establish a first SLPP positioning session according to the SLPP positioning session identifier and associate the first SLPP message with the first SLPP positioning session; or associate the first SLPP message with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • association module is used to:
  • a first SLPP positioning session is established based on the SLPP positioning session identifier, and the first SLPP message is associated with the first SLPP positioning session; or, if the SLPP positioning session identifier is a SLPP positioning session identifier that already exists for the terminal, the first SLPP message is associated with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the device further includes:
  • a third sending module configured to send a second SLPP message to the core network device
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes a SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the second SLPP message is associated with the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the SLPP positioning session identification information element included in the second SLPP message is set to be absent
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier.
  • the device further includes:
  • the release module is used to release the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the release module is used to:
  • the first condition includes at least one of the following:
  • the terminal completes the measurement and sends the corresponding measurement results
  • the terminal does not receive a second target SLPP message of the SLPP positioning session within a first preset time period after receiving the first target SLPP message of the SLPP positioning session.
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the device embodiment corresponds to the above method, and all implementation methods in the above method embodiment are applicable to the device embodiment and can achieve the same technical effect.
  • the communication device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or may be other devices other than a terminal.
  • the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • the information transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 11 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to receive a core The first information sent by the network device;
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier are in a one-to-one relationship, or the SLPP positioning session identifier and the LPP positioning session identifier are in a many-to-one relationship.
  • the communication interface is used to implement one of the following:
  • a first SLPP message sent by the core network device through a non-access layer message is received, where the non-access layer message includes the SLPP positioning session identifier.
  • the first SLPP message is a positioning session establishment request message, or the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the SLPP positioning session identifier includes information about a distributor of the SLPP positioning session identifier.
  • the processor is configured to:
  • a first SLPP positioning session is established according to the SLPP positioning session identifier, and the first SLPP message is associated with the first SLPP positioning session; or the first SLPP message is associated with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the processor is configured to:
  • a first SLPP positioning session is established based on the SLPP positioning session identifier, and the first SLPP message is associated with the first SLPP positioning session; or, if the SLPP positioning session identifier is a SLPP positioning session identifier that already exists for the terminal, the first SLPP message is associated with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the communication interface is further used for:
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes a SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the second SLPP message is associated with the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the SLPP positioning session identification information element included in the second SLPP message is set to be absent
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier.
  • the processor is further configured to:
  • the SLPP positioning session corresponding to the SLPP positioning session identifier is released.
  • the processor is configured to:
  • the first condition includes at least one of the following:
  • the terminal completes the measurement and sends the corresponding measurement results
  • the terminal does not receive a second target SLPP message of the SLPP positioning session within a first preset time period after receiving the first target SLPP message of the SLPP positioning session.
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect.
  • Figure 15 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application.
  • the terminal 1500 includes but is not limited to: a radio frequency unit 1501, a network module 1502, an audio output unit 1503, an input unit 1504, a sensor 1505, a display unit 1506, a user input unit 1507, an interface unit 1508, a memory 1509 and at least some of the components of the processor 1510.
  • the terminal 1500 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1510 through a power management system, so as to implement functions such as charging, discharging, and power consumption management through the power management system.
  • a power source such as a battery
  • the terminal structure shown in FIG15 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 1504 may include a graphics processing unit (GPU) 15041 and a microphone 15042, and the graphics processor 15041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 1506 may include a display panel 15061, and the display panel 15061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 1507 includes a touch panel 15071 and at least one of the other input devices 15072.
  • the touch panel 15071 is also called a touch screen.
  • the touch panel 15071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 15072 may include, but are not limited to, a physical keyboard, function keys (such as sound keys), and touch controls. volume control buttons, switch buttons, etc.), trackball, mouse, joystick, etc., will not be elaborated here.
  • the radio frequency unit 1501 can transmit the data to the processor 1510 for processing; in addition, the radio frequency unit 1501 can send uplink data to the network side device.
  • the radio frequency unit 1501 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 1509 can be used to store software programs or instructions and various data.
  • the memory 1509 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the memory 1509 may include a volatile memory or a non-volatile memory, or the memory 1509 may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 1509 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
  • the processor 1510 may include one or more processing units; optionally, the processor 1510 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1510.
  • the radio frequency unit 1501 is used for:
  • the first information includes: a first sidelink positioning protocol SLPP message and an SLPP positioning session identifier; or, the first information includes: a first SLPP message, and the SLPP positioning session identifier information element included in the first SLPP message is set to absent or set to an LPP positioning session identifier.
  • the SLPP positioning session identifier and the LPP positioning session identifier are in a one-to-one relationship, or the SLPP positioning session identifier and the LPP positioning session identifier are in a many-to-one relationship.
  • the radio frequency unit 1501 is configured to implement one of the following:
  • a first SLPP message sent by the core network device through a non-access layer message is received, where the non-access layer message includes the SLPP positioning session identifier.
  • the first SLPP message is a positioning session establishment request message, or the first SLPP message includes first indication information, and the first indication information is used to instruct the terminal to establish a SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the first SLPP message includes at least one of the following:
  • the SLPP positioning session identifier includes information about a distributor of the SLPP positioning session identifier.
  • the processor 1510 is configured to:
  • a first SLPP positioning session is established according to the SLPP positioning session identifier, and the first SLPP message is associated with the first SLPP positioning session; or the first SLPP message is associated with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the processor 1510 is configured to:
  • a first SLPP positioning session is established based on the SLPP positioning session identifier, and the first SLPP message is associated with the first SLPP positioning session; or, if the SLPP positioning session identifier is a SLPP positioning session identifier that already exists for the terminal, the first SLPP message is associated with a second SLPP positioning session corresponding to the SLPP positioning session identifier.
  • the radio frequency unit 1501 is further configured to:
  • the second SLPP message satisfies one of the following conditions:
  • the second SLPP message includes a SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the second SLPP message is associated with the SLPP positioning session identifier corresponding to the SLPP positioning session;
  • the SLPP positioning session identification information element included in the second SLPP message is set to be absent
  • the SLPP positioning session identifier information element included in the second SLPP message is set to the LPP positioning session identifier.
  • processor 1510 is further configured to:
  • the SLPP positioning session corresponding to the SLPP positioning session identifier is released.
  • the processor 1510 is configured to:
  • the first condition includes at least one of the following:
  • the terminal completes the measurement and sends the corresponding measurement results
  • the terminal does not receive the first target SLPP message of the SLPP positioning session within a first preset time period.
  • a second target SLPP message for the SLPP positioning session is received.
  • the third SLPP message is a positioning session release request message or a positioning session release command message
  • the third SLPP message includes second indication information, where the second indication information is used to indicate the release of the SLPP positioning session corresponding to the SLPP positioning session identifier.
  • an embodiment of the present application also provides a terminal, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
  • a terminal including a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
  • the program or instruction is executed by the processor, each process of the above-mentioned information transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.
  • An embodiment of the present application also provides a computer-readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the various processes of the above-mentioned information transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the computer-readable storage medium includes a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
  • an embodiment of the present application further provides a communication device 1600, including a processor 1601 and a memory 1602, wherein the memory 1602 stores a program or instruction that can be run on the processor 1601.
  • the communication device 1600 is a core network device
  • the program or instruction is executed by the processor 1601 to implement the various steps of the above-mentioned information acquisition method embodiment, and can achieve the same technical effect.
  • the communication device 1600 is a terminal
  • the program or instruction is executed by the processor 1601 to implement the various steps of the above-mentioned information acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the embodiments of the present application further provide a computer program/program product, which is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned information transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides an information transmission system, including: a core network device and a terminal, wherein the core network device can be used to execute the steps of the above-mentioned information transmission method, and the terminal can be used to execute the steps of the above-mentioned information transmission method.
  • the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, magnetic disk, optical disk
  • a terminal which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.

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Abstract

本申请公开了一种信息传输方法、装置、核心网设备及终端,属于通信技术领域,本申请实施例的信息传输方法,包括:核心网设备在确定采用旁链路定位的情况下,向终端发送第一信息;其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。

Description

信息传输方法、装置、核心网设备及终端
相关申请的交叉引用
本申请主张在2023年01月11日在中国提交的中国专利申请No.202310038722.5的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,具体涉及一种信息传输方法、装置、核心网设备及终端。
背景技术
基于用户设备(User Equipment,UE)与基站之间的无线接口(即Uu接口)的定位,通常是由接入移动管理功能(Access and Mobility Management Function,AMF)分配长期演进定位协议(Long Term Evolutio Positioning Protocol,LPP)定位会话标识,并且在非接入层(Non-access stratum,NAS)携带LPP会话标识(session ID)。但是上述的定位会话标识处理方式并不适用于基于定位服务器(比如,定位管理功能(Location Management Function,LMF))的旁链路(sidelink,或译为副链路,侧链路,边链路等)定位架构。
发明内容
本申请实施例提供一种信息传输方法、装置、核心网设备及终端,以实现基于定位会话的sidelink定位。
第一方面,提供了一种信息传输方法,该方法包括:
核心网设备在确定采用旁链路定位的情况下,向终端发送第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
第二方面,提供了一种信息传输装置,应用于核心网设备,包括:
第一发送模块,用于在确定采用旁链路定位的情况下,向终端发送第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
第三方面,提供了一种信息传输方法,该方法包括:
终端接收核心网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识; 或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
第四方面,提供了一种信息传输装置,应用于终端,包括:
第一接收模块,用于接收核心网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
第五方面,提供了一种核心网设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种核心网设备,包括处理器及通信接口,其中,所述通信接口用于在确定采用旁链路定位的情况下,向终端发送第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
第七方面,提供了一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第三方面所述的方法的步骤。
第八方面,提供了一种终端,包括处理器及通信接口,其中,所述通信接口用于接收核心网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
第九方面,提供了一种信息传输系统,包括:核心网设备及终端,所述核心网设备可用于执行如第一方面所述的方法的步骤,所述终端可用于执行如第三方面所述的方法的步骤。
第十方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面或第三方面所述的方法的步骤。
第十一方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面或第三方面所述的方法的步骤。
第十二方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面或第三方面所述的方法的步骤。
在本申请实施例中,通过在确定采用旁链路定位的情况下,向终端发送包括第一旁链 路定位协议SLPP消息和SLPP定位会话标识的第一信息,或者向终端发送包含SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识的第一SLPP消息的第一信息,以此能够进行基于定位会话的sidelink定位。
附图说明
图1是本申请实施例可应用的一种无线通信系统的框图;
图2是基于移动网络的定位技术的定位架构示意图;
图3是LMF与UE之间通过LPP协议交互的协议栈示意图;
图4是基于LMF的sidelink定位架构示意图;
图5是基于定位服务终端的定位架构示意图;
图6是没有定位服务终端的定位架构示意图;
图7是本申请实施例的信息传输方法的流程示意图之一;
图8是本申请实施例的具体应用流程示意图之一;
图9是定位会话释放流程示意图;
图10是本申请实施例的具体应用流程示意图之二;
图11是本申请实施例的信息传输方法的流程示意图之二;
图12是本申请实施例的信息传输装置的模块示意图之一;
图13是本申请实施例的核心网设备的结构示意图;
图14是本申请实施例的信息传输装置的模块示意图之二;
图15是本申请实施例的终端的结构示意图;
图16是本申请实施例的通信设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于新空口(New Radio,NR)系统,长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统, 还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机、感知业务终端、各种传感器、智能相机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network,WLAN)接入点或无线保真(Wireless Fidelity,WiFi节点等),基站可被称为节点B、演进节点B(Evolved Node B,eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point,TRP)、感知信号发送设备、感知信息接收设备或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified  Data Management,UDM)、统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF)、网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application Function,AF)等。
下面先对与本申请实施例相关的技术进行说明如下。
一、基于Uu接口的定位
在相关技术中的基于移动网络的定位技术中,支持多种类型的定位,包括:
基站发送下行定位参考信号(Positioning Reference Signal,PRS),用户设备(User Equipment,UE)进行测量
UE发送上行定位参考信号,比如探测参考信号(Sounding Reference Signal,SRS),基站进行测量;
UE测量导航卫星的信号;
定位的架构如图2所示,其中,图2中定位管理功能(Location Management Function,LMF)就是定位服务器。
其中,图2中TP为发送点(Transmission Point,TP),TRP为发送接收点(Transmission and Receiving Point,TRP),E-SMLC为演进的服务移动定位中心(Evolved Serving Mobile Location Centre,E-SMLC)。SLP为服务定位协议(Service Location Protocol,SLP)。
LMF与UE之间通过长期演进定位协议(Long Term Evolutio Positioning Protocol,LPP)协议交互,协议栈如图3所示。
其中,图3中的RRC为无线接入控制(Radio Resource Control,RRC),PDCP为分组数据汇聚协议(Packet Data Convergence Protocol,PDCP),RLC为无线链路控制(Radio Link Control,RLC),MAC为媒体接入控制(Medium Access Control,MAC),SCTP为流控制传输协议(Stream Control Transmission Protocol,SCTP),TLS为安全传输层(Transport Layer Security,TLS),TCP为传输控制协议(Transmission Control Protocol,TCP),HTTP为超文本传输协议(Hyper Text Transfer Protocol,HTTP)。
基于Uu接口的定位的整体流程为:AMF从第三方、终端或自身接收到针对某个终端的定位业务请求。如果终端此时处于连接管理空闲(Connection Mangement IDLE,CM-IDLE)态,则接入和移动管理功能(Access and Mobility Management Function,AMF)寻呼该UE以触发UE进入CM-CONNECTED态(终端在空口对应的状态是RRC连接态),然后AMF向定位服务器LMF发送定位业务请求,LMF确定基于Uu接口的定位方法,定位方法分为基于上行的定位和基于下行的定位,然后LMF发起具体的一次定位过程以获取到终端的位置。在定位过程中,LMF可能需要通过LPP协议与终端和/或通过新空口位置协议A(NR positioning protocol A,NRPPa)协议与基站进行交互,比如交互能力,交互定位辅助数据,交互定位测量结果等。LMF向AMF发送定位业务响应,携带该终端 的位置。
需要说明的是,在本申请中,一次定位过程包括针对目标UE的一次定位(任务)中涉及的多个消息交互,比如定位能力传输、定位辅助数据交互和位置信息交互等消息交互。
有可能同时存在多个针对同一个目标UE的定位过程,比如终端自己发起了定位自己的定位请求,在定位过程中(即在定位结束之前),第三方也发起了定位该目标UE的定位请求,由于定位的服务质量(Quality of Service,QoS)不同,LMF也需要针对第三方发起的定位请求执行另一个定位过程。为了区分并发的定位过程,第三代伙伴组织计划(Third Generation Partnership Projects,3GPP)引入了定位会话(session)的概念,用于将同一个定位过程(对应同一个定位请求)的消息关联到一起。由于UE与LMF之间交互的消息的协议是LPP协议,因此称之为LPP session。
LPP消息承载在非接入层(Non-access stratum,NAS)消息上发送给UE,在当前的标准协议里,LPP定位会话标识(session ID)在NAS层体现,也就是携带LPP消息的NAS消息的一个信元用于指示定位会话标识,在NAS层称之为关联标识(Correlation ID)。Correlation ID是一个可变长的字符串。Correlation ID由网络进行分配,通常在AMF收到定位请求后由AMF进行分配,并且AMF与LMF交互LPP消息时指示该LPP消息对应的Correlation ID,从而使得LMF在收到AMF的LPP消息后能关联该LPP消息到对应的定位session;AMF收到LMF的LPP消息后,能将该correlation ID和LPP消息放到NAS消息中发送给UE,从而使得UE能关联该LPP消息到对应的LPP定位session。
二、Sidelink定位
长期演进(Long Term Evolution,LTE)系统支持旁链路(sidelink,或译为副链路,侧链路,边链路等)传输,即UE之间直接在物理层上进行数据传输。LTE sidelink是基于广播进行通讯的,虽然可用于支持车联网(vehicle to everything,V2X)的基本安全类通信,但不适用于其他更高级的V2X业务。第五代移动通信技术(5th Generation,5G)NR(New Radio)系统将支持更加先进的sidelink传输设计,例如,单播,多播或组播等,从而可以支持更全面的业务类型。
LTE系统从第12个发布版本开始支持旁链路(sidelink,或译为副链路,侧链路,边链路等),用于UE之间不通过网络设备进行直接数据传输。
当两个UE需要进行sidelink单播通信时,两个UE之间首先需要建立sidelink单播连接。
除了基于Uu口(UE与基站之间的无线接口)的参考信号进行定位外,在V2X等场景也存在基于PC5口(UE与UE之间的无线接口)进行定位的需求,比如当车辆不在移动网络的覆盖范围内时,可能需要进行sidelink定位。
根据当前的标准讨论,3GPP在R18中需要引入基于PC5口的sidelink定位(简称:SL定位),即测量PC5口的Sidelink PRS进行定位。对于SL定位,当前标准同意引入如下的角色:
目标UE(target UE):定位的目标UE,定位需要获取该UE的绝对位置、相对位置或范围(ranging)。
锚点UE(anchor UE):支持对target UE进行定位的UE,比如通过发送和/或接收SL PRS(sidelink定位参考信号),提供定位相关信息等。
对于SL定位,存在两种架构:
架构1:基于定位服务器(例如,LMF)的SL定位,即沿用基于Uu接口的定位架构,定位服务器负责控制SL定位的执行,不同点是,SL定位涉及至少两个UE(一个target UE,一个或多个anchor UE),UE测量其他UE发送的SL PRS从而实现定位,具体架构图如图4所示。
架构1只适用于target UE和/或anchor UE处于网络覆盖范围内的场景,不适用于target UE和anchor UE均处于网络覆盖范围外的场景。
架构2:不基于(不相关)定位服务器的SL定位。对于这种架构,可以不涉及通信网络节点,多个UE之间交互来实现定位。是否其中一个UE(定位服务终端(Positioning Server UE))承担类似于LMF的功能还没有结论。因此可能存在以下两种可能的架构:
架构2-1:基于Positioning Server UE的定位服务架构,如图5所示;
架构2-2:没有Positioning Server UE的定位服务架构,如图6所示。
在架构2-1中,Positioning Server UE是提供定位服务功能的UE。Positioning Server UE接收携带定位QoS的sidelink定位请求或自身触发sidelink定位需求,然后基于定位QoS确定在sidelink定位中采用的定位方法,定位配置信息,哪些UE作为anchor UE参与定位等。在一次sidelink定位过程中,Positioning Server UE可以是一个单独的角色(UE),也可以是兼具target UE(此时,Positioning Server UE定位自己)的角色。在一次sidelink定位过程中,一个UE可以作为Positioning Server UE,在另一次sidelink定位过程中,这个UE可以不作为Positioning Server UE,比如只作为anchor UE。需要说明的是,Positioning Server UE在一次定位过程中起到控制sidelink定位执行的作用,也可以有其他称呼,比如controlling UE,这里不做限定。
需要说明的是,由于Positioning Server UE也可以兼具anchor UE的角色,因此在上述架构中,在某些场景下,也可以没有单独的anchor UE。另外,Positioning Server UE可以与target UE是同一个UE,也可以是不同的UE。
架构2可以适用于target UE和anchor UE均处于网络覆盖范围外的场景,也可以适用于target UE和/或anchor UE处于网络覆盖范围内的场景。
标准已经同意引入一个新的UE与UE之间的协议层用于Sidelink定位,称之为旁链路定位协议(Sidelink Positioning Protocol,SLPP)。该协议层用于SL定位的定位消息交互。SLPP协议层可能位于分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层或PC5-S层,当前还没有结论。
对于SL定位,标准已经同意支持以下功能(消息交互):
旁链路定位能力转移(SL Positioning Capability Transfer);
旁链路定位辅助数据交换(SL Positioning Assistance Data exchange);
旁链路位置信息转移(SL Location Information Transfe r);
错误处理(Error handling);
中止(Abort)。
在上述定位架构中,首先,Positioning Server UE接收到携带定位QoS和目标UE ID的定位请求,或Positioning Server UE自身触发,需要定位target UE或自己(即Positioning Server UE同时是target UE),然后Positioning Server UE根据定位QoS等信息识别/确定参与定位的anchor UE以及确定定位方法,紧接着,Positioning Server UE使用sidelink定位协议(比如上图中的SLPP协议)执行sidelink定位得到sidelink定位结果,具体的,与target UE、Anchor UE交互sidelink定位协议消息,包括,比如,提供定位辅助信息(配置SL PRS的测量),请求位置信息,接收sidelink定位测量等。
对于架构1,LMF与UE交互Uu接口的定位测量等信息使用LPP协议,LMF如何与target UE或anchor UE交互PC5接口的定位测量等信息还没有结论,其中一种主流的方法是,重用架构2中的SLPP协议,以减少协议开发的工作。比如,SLPP消息作为LPP消息或NAS消息里的一个容器(container),此时,可以认为SLPP协议位于LPP协议或NAS协议的上一层。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的信息传输方法、装置、核心网设备及终端进行详细地说明。
如图7所示,本申请实施例提供一种信息传输方法,包括:
步骤701,核心网设备在确定采用旁链路定位的情况下,向终端发送第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,
所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
需要说明的是,本申请实施中的核心网设备可以为LMF。
可选地,所述SLPP定位会话标识与LPP定位会话标识可以为一对一的关系,即在一个LPP会话中核心网设备只能分配一个SLPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识也可以为多对一的关系,即对应于一次定位请求的LPP会话,核心网设备可以发起多次sidelink定位,每次sidelink定位被分配一个SLPP定位会话标识。比如,一次定位请求需要核心网设备执行多次sidelink定位,在获取到这多次sidelink定位的结果后生成对应该定位请求的定位结果。在多对一的场景下,LPP会话与SLPP会话可以是上下级的关系,即在一个LPP会话下再进一步区分不同的SLPP会话。LPP定位会话标识和SLPP定位会话标识的组合代表一个SLPP会话。
可选地,所述核心网设备在确定采用旁链路定位的情况下,向终端发送第一信息的具体实现方式,包括:
所述核心网设备在确定采用旁链路定位的情况下,为所述旁链路定位分配SLPP定位会话标识;
所述核心网设备向所述终端发送所述第一SLPP消息和所述SLPP定位会话标识。
需要说明的是,核心网设备在确定采用旁链路定位的情况下,需要为此次旁链路定位建立SLPP定位会话,分配SLPP定位会话标识,然后向终端发送所述第一SLPP消息和所述SLPP定位会话标识。
可选地,所述核心网设备向所述终端发送第一SLPP消息和SLPP定位会话标识的具体实现方式,包括以下一项:
A11、所述核心网设备向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
需要说明的是,本申请实施例中,核心网设备通常是不与终端直接通信的,该核心网设备需要通过AMF向终端发送相关的信息。
具体地,此种方式下的具体实现为:核心网设备向AMF发送第一LPP消息和该第一LPP消息对应的LPP定位会话标识,该第一LPP消息包含一个容器(container),该container对应第一SLPP消息。第一SLPP消息中包括SLPP定位会话标识,也就是,SLPP定位会话标识作为SLPP消息的一个信元。AMF接收到后,生成一个NAS消息并发送给UE,该NAS消息包括对应的LPP定位会话标识和一个container,该container对应该第一LPP消息。
对应的,终端接收到该NAS消息后,在NAS层解析该NAS消息后获取到第一LPP消息和对应的LPP定位会话标识,将第一LPP消息和其对应的LPP定位会话标识递交到LPP协议层。UE的LPP层进一步解析该第一LPP消息获取到第一SLPP消息,将第一SLPP消息递交给SLPP协议层,SLPP协议层解析第一SLPP消息,从而获知该第一SLPP消息关联的SLPP定位会话标识。
A12、所述核心网设备向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
需要说明的是,此种方式下的具体实现为:核心网设备向AMF发送第一LPP消息和该第一LPP消息对应的LPP定位会话标识,该第一LPP消息包含一个container,该container对应第一SLPP消息。该第一LPP消息包括对应第一SLPP消息的SLPP定位会话标识,也就是说,SLPP定位会话标识作为第一LPP消息的一个信元。该AMF接收到后,生成一个NAS消息并发送给UE,该NAS消息包括对应的LPP定位会话标识和一个container,该container对应该第一LPP消息。
对应地,终端接收到该NAS消息后,在NAS层解析该NAS消息后获取到第一LPP 消息和对应的LPP定位会话标识,将第一LPP消息和其对应的LPP定位会话标识递交到LPP协议层。UE的LPP层进一步解析该第一LPP消息获取到第一SLPP消息和其关联的SLPP定位会话标识,将第一SLPP消息和其关联的SLPP定位会话标识递交给SLPP协议层。
A13、所述核心网设备通过非接入层消息向所述终端发送所述第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识;
需要说明的是,此种方式下的具体实现为:核心网设备向AMF发送第一SLPP消息和第一SLPP消息对应的SLPP定位会话标识,该AMF接收到后,生成一个NAS消息并发送给UE,该NAS消息包括第一SLPP消息对应的SLPP定位会话标识和一个container,该container对应第一SLPP消息。
对应地,终端接收到该NAS消息后,在NAS层解析该NAS消息后获取到第一SLPP消息和对应的SLPP定位会话标识,将第一SLPP消息和其关联的SLPP定位会话标识递交给SLPP协议层。
可选地,所述第一SLPP消息可以为定位会话建立请求消息,
需要说明的是,可选地,该第一SLPP消息可以是新引入的定位会话建立请求消息。可选地,为了减少消息交互的次数以降低时延,定位会话建立请求消息可以携带其他SLPP消息或其他SLPP消息的内容,比如提供辅助数据消息或请求定位能力消息或其内容。
所述第一SLPP消息也可以包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
进一步地,在此种情况下,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,由于UE可能同时参与了其他UE发起的SL定位过程,在这多个定位过程中,定位会话标识分别由核心网设备和其他UE分配,两者分配的定位会话标识可能相同,这造成了定位会话标识的冲突,从而可能导致将一个定位过程(定位会话)的SLPP消息关联到另一个定位过程(定位会话),造成定位的混乱,导致定位失败。为了避免这个冲突的问题,可以采取以下方式:
方式一、定位会话标识是一个整形的序号,或是一个字符串。但是整形的范围足够大,或字符串足够长,尽管理论上仍然存在冲突,但是冲突的概率小到可以忽略。
此种情况可以理解为不同的定位过程采用的是不同的定位会话标识,以避免不同的定位过程使用相同的定位会话标识。
方式二、所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息;
需要说明的是,此种情况下,可以理解为SLPP定位会话标识至少由两部分组成,其中一部分是指明SLPP定位会话标识的分配方信息(比如分配方的类型(LMF还是非LMF 或终端)),或分配方的标识),另一部分是序号或字符串。
需要说明的是,终端接收到核心网设备发送的第一信息之后,所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
需要说明的是,此种情况通常适用于第一信息包括第一SLPP消息和SLPP定位会话标识的情况。
进一步可选地,若所述SLPP定位会话标识为终端未存在的SLPP定位会话标识(即该SLPP定位会话标识为新的SLPP定位会话标识),所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话(即新的SLPP定位会话),将所述第一SLPP消息关联到所述第一SLPP定位会话;或者,若所述SLPP定位会话标识为终端已存在的SLPP定位会话标识,所述终端将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
也就是说,UE判断接收的SLPP定位会话标识是一个新的SLPP定位会话标识(即在UE的上下文中不存在该SLPP定位会话标识,没有定位会话对应该SLPP定位会话标识),则建立新的SLPP定位会话,将该SLPP定位会话标识关联到该新建立的SLPP定位会话;如果接收的SLPP定位会话标识已经存在,则将第一SLPP消息关联到该SLPP定位会话标识关联的定位会话。
另一种情况下,如果第一SLPP消息是定位会话建立请求消息,或第一SLPP消息中携带了第一指示信息,则UE直接建立新的SLPP定位会话,将该SLPP定位会话标识关联到该新建立的SLPP定位会话。
进一步地,在终端接收到第一信息,获取到相关的信息后,还需要向核心网设备反馈对应的信息,可选地,所述方法,还包括:
所述核心网设备接收所述终端发送的第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
B11、所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
B12、所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
需要说明的是,上述的B11和B12适用于第一信息包括第一SLPP消息和SLPP定位会话标识的情况。
B13、所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
需要说明的是,此种情况适用于第一信息包括第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席的情形。
B14、所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识;
需要说明的是,此种情况适用于第一信息包括第一SLPP消息,所述第一SLPP消息 中包括的SLPP定位会话标识信元被设置为LPP定位会话标识的情形。
可选地,在定位会话结束后,还需要释放该定位会话,具体地,终端在满足第一条件的情况下,释放所述SLPP定位会话标识对应的SLPP定位会话;
其中,所述第一条件包括以下至少一项:
C11、接收核心网设备发送的第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话;
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
需要说明的是,此种情况下,定位会话释放是由核心网设备触发的,即核心网设备向所述终端发送第三SLPP消息,终端在第三SLPP消息的指示下进行SLPP定位会话标识对应的SLPP定位会话的释放。此种情况可以理解为是定位会话释放的显式指示。
C12、终端完成测量并发送对应的测量结果;
需要说明的是,此种情况下指的是终端在完成测量并发送对应的测量结果(比如发送提供位置信息消息)后,自动释放该定位会话。进一步可选地,终端可以在完成测量并发送对应的测量结果且在达到要求的测量结果上报次数之后再进行定位会话的释放;或者,终端在完成测量并发送对应的测量结果且达到要求的上报时长后自动释放该定位会话。
C13、终端在接收到所述SLPP定位会话的第一目标SLPP消息之后的第一预设时间段内未接收到所述SLPP定位会话的第二目标SLPP消息;
需要说明的是,该第一预设时间段可以是协议约定或网络设备配置的。
可选地,此种情况下,当终端收到SLPP定位会话的第一目标SLPP消息(例如,该第一目标SLPP消息为第一SLPP消息)之后,可以开启一个定时器,在定时器超时时,若未收到核心网设备发送的针对该SLPP定位会话的下一个SLPP消息,则释放定位会话;或者在定时器超时前,若收到核心网设备发送的针对该SLPP定位会话的下一个SLPP消息,则重启定时器。
需要说明的是,上述的C12和C13指的是定位会话释放的隐式指示。
还需要说明的是,上述的显式指示方式和隐式指示可以结合使用,比如,接收到释放消息或释放指示后释放,如果未接收到释放消息或释放指示,但是在一段时间内未收到这个定位会话的SLPP消息,则释放该定位会话。
下面对本申请的具体应用举例说明如下。
应用情况一、SLPP session与LPP session各自独立存在,LMF分配SLPP定位会话标识(例如,SLPP session ID)
此种应用情况的主要思想是:SLPP session与LPP session各自独立存在。LPP session重用相关技术中的机制,即AMF分配LPP定位会话标识(LPP session ID),例如,correlation  ID,并在NAS消息中携带。对于SLPP session,当LMF确定采用sidelink定位时,为此次sidelink定位分配SLPP定位会话标识,SLPP session ID在LPP消息或SLPP消息或NAS消息中携带。
主要实现流程如图8所示,具体包括:
步骤80,AMF在收到定位请求后,为这次定位分配LPP session ID(也就是correlation ID);
步骤81,AMF向LMF发送定位请求,定位请求包括定位服务质量(Quality of Service,QoS)和LPP session ID。
步骤82,LMF确定采用sidelink定位,LMF为此次sidelink定位建立SLPP定位会话,分配SLPP session ID。
可选地,SLPP session ID与LPP session ID可以是一对一的关系,即在一个LPP session里LMF只能分配一个SLPP session ID。
可选地,SLPP session ID与LPP session ID也可以是多对一的关系,即对应于一次定位请求的LPP session,LMF可以发起多次sidelink定位,每次sidelink定位被分配一个SLPP session ID。比如,一次定位请求需要LMF执行多次sidelink定位,在获取到这多次sidelink定位的结果后生成对应该定位请求的定位结果。在多对一的场景下,LPP session与SLPP session可以是上下级的关系,即在一个LPP session下再进一步区分不同的SLPP session。LPP session ID+SLPP session ID组合代表一个SLPP session。
步骤83,LMF向UE发送第一SLPP消息,该第一SLPP消息包括或关联到步骤82分配的SLPP session ID。具体地,可能有以下方案:
方案1:LMF向AMF发送LPP消息和该LPP消息对应的LPP session ID,该LPP消息包含一个container,该container对应第一SLPP消息。第一SLPP消息包括SLPP定位会话标识,也就是,SLPP定位会话标识作为SLPP消息的一个信元。该AMF接收到后,生成一个NAS消息并发送给UE,该NAS消息包括对应的LPP session ID和一个container,该container对应该LPP消息。
方案2:LMF向AMF发送LPP消息和该LPP消息对应的LPP session ID,该LPP消息包含一个container,该container对应第一SLPP消息。该LPP消息包括对应第一SLPP消息的SLPP定位会话标识,也就是,SLPP定位会话标识作为LPP消息的一个信元。该AMF接收到后,生成一个NAS消息并发送给UE,该NAS消息包括对应的LPP session ID和一个container,该container对应该LPP消息。
方案3:LMF向AMF发送第一SLPP消息和第一SLPP消息对应的SLPP session ID该AMF接收到后,生成一个NAS消息并发送给UE,该NAS消息包括对应的SLPP session ID和一个container,该container对应第一SLPP消息。
对应地,在UE侧,在接收到NAS消息后:
对于方案1,在NAS层解析该NAS消息后获取到LPP消息和对应的LPP session ID, 将LPP消息和其对应的LPP session ID递交到LPP协议层。UE的LPP层进一步解析该LPP消息获取到第一SLPP消息,将第一SLPP消息递交给SLPP协议层,SLPP协议层解析第一SLPP消息,从而获知该第一SLPP消息关联的SLPP session ID。
对于方案2,在NAS层解析该NAS消息后获取到LPP消息和对应的LPP session ID,将LPP消息和其对应的LPP session ID递交到LPP协议层。UE的LPP层进一步解析该LPP消息获取到第一SLPP消息和其关联的SLPP session ID,将第一SLPP消息和其关联的SLPP session ID递交给SLPP协议层。
对于方案3,在NAS层解析该NAS消息后获取到SLPP消息和对应的SLPP session ID,将第一SLPP消息和其关联的SLPP session ID递交给SLPP协议层。
可选地,第一SLPP消息包括第一指示信息,该第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。可选地,此时,第一SLPP消息可以是请求能力信息消息、提供辅助数据消息或请求位置信息消息。
可选地,第一SLPP消息可以是新引入的定位会话建立请求消息。可选地,为了减少消息交互的次数以降低时延,定位会话建立请求消息可以携带其他SLPP消息或其他SLPP消息的内容,比如提供辅助数据消息或请求定位能力消息或其内容。
步骤84,UE收到第一SLPP消息后,基于该SLPP session ID建立新的SLPP定位会话,或将第一SLPP消息关联到该SLPP session ID关联的定位会话。
具体地实现方式可以包括:
UE判断SLPP session ID是一个新的SLPP session ID(即在UE的上下文中不存在该SLPP session ID,没有定位会话对应该SLPP session ID),则建立新的SLPP定位会话,将该SLPP session ID关联到该新建立的定位会话;如果已经存在,则将第一SLPP消息关联到该SLPP session ID关联的定位会话。
或者,如果第一SLPP消息是定位会话建立请求消息,或第一SLPP消息中携带了第一指示信息,则UE建立新的SLPP定位会话,将该SLPP session ID关联到该新建立的SLPP定位会话。
步骤85,UE向LMF发送第二SLPP消息,第二SLPP消息包括或关联对应该SLPP定位会话的SLPP定位会话标识,具体的:
对应于步骤83中的方案1,UE的SLPP层生成第二SLPP消息,第二SLPP消息包括SLPP定位会话标识。第二SLPP消息被递交给UE的LPP层,LPP层生成第二LPP消息,该第二LPP消息包括对应第二SLPP消息的container。该第二LPP消息和对应的LPP session ID被递交给UE的NAS层,UE的NAS层生成NAS消息并发送给AMF,该NAS消息包括该第二LPP消息和对应的LPP session ID。AMF收到NAS消息后,将其中的第二LPP消息和对应的LPP session ID递交给LMF。LMF解析该第二LPP消息得到第二SLPP消息,进一步解析第二SLPP消息得到SLPP定位会话标识,从而获知第二SLPP消息关联的SLPP session ID。
对应于步骤83中的方案2,UE的SLPP层生成第二SLPP消息。第二SLPP消息和对应的SLPP定位会话标识被递交给UE的LPP层,LPP层生成第二LPP消息,该第二LPP消息包括对应第二SLPP消息的container和SLPP定位会话标识。该第二LPP消息和对应的LPP session ID被递交给UE的NAS层,UE的NAS层生成NAS消息并发送给AMF,该NAS消息包括该LPP消息和对应的LPP session ID。AMF收到NAS消息后,将其中的LPP消息和对应的LPP session ID递交给LMF。LMF解析该LPP消息得到第二SLPP消息和对应的SLPP定位会话标识,从而获知第二SLPP消息关联的SLPP session ID。
对应于步骤83中的方案3,UE的SLPP层生成第二SLPP消息。第二SLPP消息和对应的SLPP session ID被递交给UE的NAS层,UE的NAS层生成NAS消息并发送给AMF,该NAS消息包括第二SLPP消息和对应的SLPP session ID。AMF收到NAS消息后,将其中的SLPP消息和对应的SLPP session ID递交给LMF。
LMF将第二SLPP消息关联到该定位会话标识关联的定位会话。
还需要说明的是,如果这同一个SLPP定位过程(定位会话)还涉及另一个UE,则LMF仍使用这个分配的定位会话标识与这个UE进行通信。从而通过SLPP定位会话标识将一个定位过程涉及的多个UE之间交互的SLPP消息关联到了同一个定位会话里,避免了在多个并发定位过程场景下的定位的混乱。
进一步地,在sidelink定位过程完成后,需要及时释放该次定位会话。如何释放定位会话,可能有如下方式:
方式1、显式释放
如图9所示,主要流程包括:
步骤91,LMF向UE发送第三SLPP消息;
该第三SLPP消息可以为定位会话释放请求或定位会话释放命令消息,或者第三SLPP消息包括第二指示信息,第二指示信息用于指示释放SLPP定位会话标识对应的SLPP定位会话。
步骤92,UE收到第三SLPP消息后,释放对应的定位会话。
步骤93,UE向LMF发送第四SLPP消息;
该第四SLPP消息中携带SLPP定位会话标识。可选地,该第四SLPP消息为释放响应消息,比如,定位会话释放完成消息。
需要说明的是,该步骤为可选步骤。
步骤94,LMF释放对应的定位会话。
方式2:隐式释放
UE在完成测量并发送对应的测量结果(比如发送提供位置信息消息)后,自动释放该定位会话。可选的,在达到要求的测量结果上报次数,或达到要求的上报时长后自动释放。
或者,在未收到同一个SLPP会话的SLPP消息之后一段时间后释放session。具体的, 收到同一个session的SLPP消息后开启定时器或重置定时器,定时器超时后释放session。
需要说明的是,方式1和方式2可以结合使用,比如,接收到释放消息或释放指示后释放,如果未接收到释放消息或释放指示,但是在一段时间内未收到这个定位会话的SLPP消息,则释放该定位会话。
应用情况二、没有独立的SLPP session,或者说SLPP session重用/共享LPP的session
此种应用情况的的主要思想是:在基于LMF的sidelink定位场景下,没有独立的SLPP session,或者说SLPP session重用/共享LPP的session(在不基于LMF的sidelink定位场景下,相应的SLPP消息包括SLPP session ID)。在此种应用情况中,SLPP消息中的SLPP session ID信元总是被设置成缺席(absent),或者SLPP消息中的SLPP session ID信元总是被设置成对应的LPP session ID。
如图10所示,主要流程包括:
步骤1000,AMF在收到定位请求后,为这次定位分配LPP session ID(也就是correlation ID);
步骤1001,AMF向LMF发送定位请求,定位请求包括定位QoS和LPP session ID。
步骤1002,LMF确定采用sidelink定位。
步骤1003,LMF向UE发送第一SLPP消息,该第一SLPP消息包括的SLPP session ID信元被设置成absent,或者被设置成对应的LPP session ID。
步骤1004,UE向LMF发送第二SLPP消息,该第二SLPP消息包括的SLPP session ID信元被设置成absent,或者被设置成对应的LPP session ID。
需要说明的是,通过本申请的至少一个实施例,能有效支持并发的sidelink定位,避免定位会话标识的冲突等,保证sidelink定位的准确性。
对应于核心网设备侧的实现,如图11所示,本申请实施例提供一种信息传输方法,包括:
步骤1101,终端接收核心网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
可选地,所述终端接收核心网设备发送的第一信息,包括以下一项:
所述终端接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
所述终端接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
所述终端接收所述核心网设备通过非接入层消息发送的第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
可选地,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
可选地,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
可选地,所述方法,还包括:
所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话,具体实现方式为:
若所述SLPP定位会话标识为终端未存在的SLPP定位会话标识,根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者,若所述SLPP定位会话标识为终端已存在的SLPP定位会话标识,将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述方法,还包括:
所述终端向核心网设备发送第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
可选地,所述方法,还包括:
所述终端释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述终端释放所述SLPP定位会话标识对应的SLPP定位会话,的实现方式为:
在满足第一条件的情况下,释放所述SLPP定位会话标识对应的SLPP定位会话;
其中,所述第一条件包括以下至少一项:
接收核心网设备发送的第三SLPP消息,所述第三SLPP消息用于指示所述终端释放 所述SLPP定位会话;
终端完成测量并发送对应的测量结果;
终端在接收到所述SLPP定位会话的第一目标SLPP消息之后的第一预设时间段内未接收到所述SLPP定位会话的第二目标SLPP消息。
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
需要说明的是,上述实施例中所有关于终端侧的描述均适用于应用于终端侧的该信息传输方法的实施例中,也能达到与之相同的技术效果,在此不再赘述。
本申请实施例提供的信息传输方法,执行主体可以为信息传输装置。本申请实施例中以信息传输装置执行信息传输方法为例,说明本申请实施例提供的信息传输装置。
如图12所示,本申请实施例的信息传输装置1200,应用于核心网设备,包括:
第一发送模块1201,在确定采用旁链路定位的情况下,向终端发送第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
可选地,所述第一发送模块1201,包括:
分配单元,用于在确定采用旁链路定位的情况下,为所述旁链路定位分配SLPP定位会话标识;
发送单元,用于向所述终端发送所述第一SLPP消息和所述SLPP定位会话标识。
可选地,所述发送单元,用于实现以下一项:
向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
通过非接入层消息向所述终端发送所述第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
可选地,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
可选地,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
可选地,所述装置,还包括:
第二接收模块,用于接收所述终端发送的第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
可选地,所述装置,还包括:
第二发送模块,用于向所述终端发送第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述核心网设备为定位管理功能。
需要说明的是,该装置实施例是与上述方法对应的装置,上述方法实施例中的所有实现方式均适用于该装置实施例中,也能达到相同的技术效果,在此不再赘述。
本申请实施例还提供了一种核心网设备,包括处理器及通信接口,其中,所述通信接口用于在确定采用旁链路定位的情况下,向终端发送第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
可选地,所述处理器,用于:
在确定采用旁链路定位的情况下,为所述旁链路定位分配SLPP定位会话标识;
所述通信接口,用于向所述终端发送所述第一SLPP消息和所述SLPP定位会话标识。
可选地,所述通信接口,用于实现以下一项:
向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
通过非接入层消息向所述终端发送所述第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
可选地,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
可选地,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
可选地,所述通信接口,还用于:
接收所述终端发送的第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
可选地,所述通信接口,还用于:
向所述终端发送第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述核心网设备为定位管理功能。
优选地,本申请实施例还提供一种核心网设备,包括处理器,存储器,存储在存储器上并可在所述处理器上运行的程序或指令,该程序或指令被处理器执行时实现上述的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
具体地,本申请实施例还提供了一种核心网设备,如图13所示,该核心网设备1300包括:处理器1301、网络接口1302和存储器1303。其中,网络接口1302例如为通用公共无线接口(common public radio interface,CPRI)。
具体地,本申请实施例的核心网设备1300还包括:存储在存储器1303上并可在处理器1301上运行的指令或程序,处理器1301调用存储器1303中的指令或程序执行图7所 示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的网络侧设备中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
如图14所示,本申请实施例的信息传输装置1400,应用于终端,包括:
第一接收模块1401,用于接收核心网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
可选地,所述第一接收模块1401,用于实现以下一项:
接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
接收所述核心网设备通过非接入层消息发送的第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
可选地,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
可选地,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
可选地,所述装置,还包括:
关联模块,用于根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述关联模块,用于:
若所述SLPP定位会话标识为终端未存在的SLPP定位会话标识,根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者,若所述SLPP定位会话标识为终端已存在的SLPP定位会话标识,将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述装置,还包括:
第三发送模块,用于向核心网设备发送第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
可选地,所述装置,还包括:
释放模块,用于释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述释放模块,用于:
在满足第一条件的情况下,释放所述SLPP定位会话标识对应的SLPP定位会话;
其中,所述第一条件包括以下至少一项:
接收核心网设备发送的第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话;
终端完成测量并发送对应的测量结果;
终端在接收到所述SLPP定位会话的第一目标SLPP消息之后的第一预设时间段内未接收到所述SLPP定位会话的第二目标SLPP消息。
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
需要说明的是,该装置实施例是与上述方法对应的,上述方法实施例中的所有实现方式均适用于该装置实施例中,也能达到相同的技术效果。
本申请实施例中的通信装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的信息传输装置能够实现图11的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,所述通信接口用于接收核心 网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
可选地,所述通信接口,用于实现以下一项:
接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
接收所述核心网设备通过非接入层消息发送的第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
可选地,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
可选地,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
可选地,所述处理器,用于:
根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述处理器,用于:
若所述SLPP定位会话标识为终端未存在的SLPP定位会话标识,根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者,若所述SLPP定位会话标识为终端已存在的SLPP定位会话标识,将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述通信接口,还用于:
向核心网设备发送第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
可选地,所述处理器,还用于:
释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述处理器,用于:
在满足第一条件的情况下,释放所述SLPP定位会话标识对应的SLPP定位会话;
其中,所述第一条件包括以下至少一项:
接收核心网设备发送的第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话;
终端完成测量并发送对应的测量结果;
终端在接收到所述SLPP定位会话的第一目标SLPP消息之后的第一预设时间段内未接收到所述SLPP定位会话的第二目标SLPP消息。
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
该终端实施例与上述终端侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图15为实现本申请实施例的一种终端的硬件结构示意图。
该终端1500包括但不限于:射频单元1501、网络模块1502、音频输出单元1503、输入单元1504、传感器1505、显示单元1506、用户输入单元1507、接口单元1508、存储器1509以及处理器1510等中的至少部分部件。
本领域技术人员可以理解,终端1500还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1510逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图15中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1504可以包括图形处理单元(Graphics Processing Unit,GPU)15041和麦克风15042,图形处理器15041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1506可包括显示面板15061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板15061。用户输入单元1507包括触控面板15071以及其他输入设备15072中的至少一种。触控面板15071,也称为触摸屏。触控面板15071可包括触摸检测装置和触摸控制器两个部分。其他输入设备15072可以包括但不限于物理键盘、功能键(比如音 量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1501接收来自接入网设备的下行数据后,可以传输给处理器1510进行处理;另外,射频单元1501可以向网络侧设备发送上行数据。通常,射频单元1501包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1509可用于存储软件程序或指令以及各种数据。存储器1509可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1509可以包括易失性存储器或非易失性存储器,或者,存储器1509可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1509包括但不限于这些和任意其它适合类型的存储器。
处理器1510可包括一个或多个处理单元;可选的,处理器1510集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1510中。
其中,所述射频单元1501,用于:
接收核心网设备发送的第一信息;
其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
可选地,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
可选地,所述射频单元1501,用于实现以下一项:
接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
接收所述核心网设备通过非接入层消息发送的第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
可选地,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
可选地,所述第一SLPP消息包括以下至少一项:
请求能力信息消息;
提供辅助数据消息;
请求位置信息消息。
可选地,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
可选地,所述处理器1510,用于:
根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述处理器1510,用于:
若所述SLPP定位会话标识为终端未存在的SLPP定位会话标识,根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者,若所述SLPP定位会话标识为终端已存在的SLPP定位会话标识,将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
可选地,所述射频单元1501,还用于:
向核心网设备发送第二SLPP消息;
其中,所述第二SLPP消息满足以下一项:
所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
可选地,所述处理器1510,还用于:
释放所述SLPP定位会话标识对应的SLPP定位会话。
可选地,所述处理器1510,用于:
在满足第一条件的情况下,释放所述SLPP定位会话标识对应的SLPP定位会话;
其中,所述第一条件包括以下至少一项:
接收核心网设备发送的第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话;
终端完成测量并发送对应的测量结果;
终端在接收到所述SLPP定位会话的第一目标SLPP消息之后的第一预设时间段内未 接收到所述SLPP定位会话的第二目标SLPP消息。
可选地,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
优选的,本申请实施例还提供一种终端,包括处理器,存储器,存储在存储器上并可在所述处理器上运行的程序或指令,该程序或指令被处理器执行时实现上述的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种可读存储介质,计算机可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
可选的,如图16所示,本申请实施例还提供一种通信设备1600,包括处理器1601和存储器1602,存储器1602上存储有可在所述处理器1601上运行的程序或指令,例如,该通信设备1600为核心网设备时,该程序或指令被处理器1601执行时实现上述信息获取方法实施例的各个步骤,且能达到相同的技术效果。该通信设备1600为终端时,该程序或指令被处理器1601执行时实现上述信息获取方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种信息传输系统,包括:核心网设备及终端,所述核心网设备可用于执行上述的信息传输方法的步骤,所述终端可用于执行上述的信息传输方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的 是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对相关技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (28)

  1. 一种信息传输方法,包括:
    核心网设备在确定采用旁链路定位的情况下,向终端发送第一信息;
    其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
  2. 根据权利要求1所述的方法,其中,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
  3. 根据权利要求1或2所述的方法,其中,所述核心网设备在确定采用旁链路定位的情况下,向终端发送第一信息,包括:
    所述核心网设备在确定采用旁链路定位的情况下,为所述旁链路定位分配SLPP定位会话标识;
    所述核心网设备向所述终端发送所述第一SLPP消息和所述SLPP定位会话标识。
  4. 根据权利要求3所述的方法,其中,所述核心网设备向所述终端发送第一SLPP消息和SLPP定位会话标识,包括以下一项:
    所述核心网设备向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
    所述核心网设备向所述终端发送第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
    所述核心网设备通过非接入层消息向所述终端发送所述第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
  5. 根据权利要求1-4任一项所述的方法,其中,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
  6. 根据权利要求1-5任一项所述的方法,其中,所述第一SLPP消息包括以下至少一项:
    请求能力信息消息;
    提供辅助数据消息;
    请求位置信息消息。
  7. 根据权利要求1-6任一项所述的方法,其中,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
  8. 根据权利要求1-7任一项所述的方法,还包括:
    所述核心网设备接收所述终端发送的第二SLPP消息;
    其中,所述第二SLPP消息满足以下一项:
    所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
    所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
    所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
    所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
  9. 根据权利要求1-8任一项所述的方法,还包括:
    所述核心网设备向所述终端发送第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话标识对应的SLPP定位会话。
  10. 根据权利要求9所述的方法,其中,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
    所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
  11. 根据权利要求1-10任一项所述的方法,其中,所述核心网设备为定位管理功能。
  12. 一种信息传输方法,包括:
    终端接收核心网设备发送的第一信息;
    其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
  13. 根据权利要求12所述的方法,其中,所述SLPP定位会话标识与LPP定位会话标识为一对一的关系,或者,所述SLPP定位会话标识与LPP定位会话标识为多对一的关系。
  14. 根据权利要求12或13所述的方法,其中,所述终端接收核心网设备发送的第一信息,包括以下一项:
    所述终端接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息,所述第一SLPP消息中包含所述SLPP定位会话标识;
    所述终端接收所述核心网设备发送的第一LPP消息和所述第一LPP消息对应的LPP定位会话标识,所述第一LPP消息中包含所述第一SLPP消息和所述SLPP定位会话标识;
    所述终端接收所述核心网设备通过非接入层消息发送的第一SLPP消息,所述非接入层消息中包含所述SLPP定位会话标识。
  15. 根据权利要求12-14任一项所述的方法,其中,所述第一SLPP消息为定位会话建立请求消息,或者所述第一SLPP消息包括第一指示信息,所述第一指示信息用于指示所述终端建立对应所述SLPP定位会话标识的SLPP定位会话。
  16. 根据权利要求12-15任一项所述的方法,其中,所述第一SLPP消息包括以下至少一项:
    请求能力信息消息;
    提供辅助数据消息;
    请求位置信息消息。
  17. 根据权利要求12-16任一项所述的方法,其中,所述SLPP定位会话标识中包括所述SLPP定位会话标识的分配方信息。
  18. 根据权利要求12-17任一项所述的方法,还包括:
    所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
  19. 根据权利要求18所述的方法,其中,所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话,包括:
    若所述SLPP定位会话标识为终端未存在的SLPP定位会话标识,所述终端根据所述SLPP定位会话标识建立第一SLPP定位会话,将所述第一SLPP消息关联到所述第一SLPP定位会话;或者,若所述SLPP定位会话标识为终端已存在的SLPP定位会话标识,所述终端将所述第一SLPP消息关联到所述SLPP定位会话标识对应的第二SLPP定位会话。
  20. 根据权利要求12-19任一项所述的方法,还包括:
    所述终端向核心网设备发送第二SLPP消息;
    其中,所述第二SLPP消息满足以下一项:
    所述第二SLPP消息包括对应所述SLPP定位会话的SLPP定位会话标识;
    所述第二SLPP消息关联对应所述SLPP定位会话的SLPP定位会话标识;
    所述第二SLPP消息中包括的SLPP定位会话标识信元被设置成缺席;
    所述第二SLPP消息中包括的SLPP定位会话标识信元被设置为LPP定位会话标识。
  21. 根据权利要求12-20任一项所述的方法,还包括:
    所述终端释放所述SLPP定位会话标识对应的SLPP定位会话。
  22. 根据权利要求21所述的方法,其中,所述终端释放所述SLPP定位会话标识对应的SLPP定位会话,包括:
    在满足第一条件的情况下,所述终端释放所述SLPP定位会话标识对应的SLPP定位会话;
    其中,所述第一条件包括以下至少一项:
    接收核心网设备发送的第三SLPP消息,所述第三SLPP消息用于指示所述终端释放所述SLPP定位会话;
    终端完成测量并发送对应的测量结果;
    终端在接收到所述SLPP定位会话的第一目标SLPP消息之后的第一预设时间段内未接收到所述SLPP定位会话的第二目标SLPP消息。
  23. 根据权利要求22所述的方法,其中,所述第三SLPP消息为定位会话释放请求消息或定位会话释放命令消息;或者
    所述第三SLPP消息包括第二指示信息,所述第二指示信息用于指示释放所述SLPP定位会话标识对应的SLPP定位会话。
  24. 一种信息传输装置,应用于核心网设备,包括:
    第一发送模块,用于在确定采用旁链路定位的情况下,向终端发送第一信息;
    其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
  25. 一种核心网设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至11任一项所述的信息传输方法的步骤。
  26. 一种信息传输装置,应用于终端,包括:
    第一接收模块,用于接收核心网设备发送的第一信息;
    其中,所述第一信息包括:第一旁链路定位协议SLPP消息和SLPP定位会话标识;或者,所述第一信息包括:第一SLPP消息,所述第一SLPP消息中包括的SLPP定位会话标识信元被设置成缺席或被设置为LPP定位会话标识。
  27. 一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求12至23任一项所述的信息传输方法的步骤。
  28. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1-23任一项所述的信息传输方法的步骤。
PCT/CN2024/070510 2023-01-11 2024-01-04 信息传输方法、装置、核心网设备及终端 Ceased WO2024149140A1 (zh)

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