WO2023045741A1 - Procédé et appareil de positionnement, et support de stockage lisible - Google Patents

Procédé et appareil de positionnement, et support de stockage lisible Download PDF

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Publication number
WO2023045741A1
WO2023045741A1 PCT/CN2022/116979 CN2022116979W WO2023045741A1 WO 2023045741 A1 WO2023045741 A1 WO 2023045741A1 CN 2022116979 W CN2022116979 W CN 2022116979W WO 2023045741 A1 WO2023045741 A1 WO 2023045741A1
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WIPO (PCT)
Prior art keywords
base station
mobile base
positioning
terminal
location
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PCT/CN2022/116979
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English (en)
Chinese (zh)
Inventor
范慧芳
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展讯半导体(南京)有限公司
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Publication of WO2023045741A1 publication Critical patent/WO2023045741A1/fr

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communication technologies, and in particular to a positioning method and device, and a readable storage medium.
  • FIG. 1 is a schematic diagram of a working scene of a mobile base station in the prior art.
  • the terminal 101 is connected to the mobile base station 102, the mobile base station 102 is connected to the primary base station (Donor gNB) 103, and the primary base station 103 is externally connected to the core network (Core Network, CN) 104.
  • the terminal 101 accesses the network through the mobile base station 102. Since the mobile base station 102 is constantly moving, it is impossible to determine the configuration of the positioning reference signal according to the mobile base station 102 currently accessed by the terminal 101, thereby realizing the positioning function. Therefore, in a scenario where a terminal accesses a network through a mobile base station (Relay), how to locate the location of the terminal becomes an urgent problem to be solved.
  • a mobile base station Relay
  • This application provides a positioning method and device, and a readable storage medium, which can use the position of the mobile base station as the position of the terminal during the non-stop movement of the mobile base station, thereby realizing effective determination of the terminal connected to the mobile base station the purpose of its location.
  • the embodiment of the present application provides a positioning method, including: obtaining the position of a mobile base station; and using the position of the mobile base station as the position of a terminal connected to the mobile base station.
  • the acquiring the location of the mobile base station includes: acquiring positioning information; and determining the location of the mobile base station according to the positioning information.
  • the positioning method further includes: receiving a position determination request message from the AMF, wherein the position determination request message includes first indication information, and the first indication information is used to indicate the mobile base station;
  • Obtaining the location of the mobile base station includes: performing a positioning procedure with the mobile base station indicated by the first indication information to obtain the location of the mobile base station, or performing a positioning procedure with the mobile base station indicated by the first indication information to obtain the location of the mobile base station.
  • the positioning information of the mobile base station is used to determine the position of the mobile base station according to the positioning information.
  • a positioning process with the mobile base station indicated by the first indication information to obtain the location of the mobile base station or perform a positioning process with the mobile base station indicated by the first indication information to obtain the location of the mobile base station
  • Positioning information determining the position of the mobile base station according to the positioning information, including: in the case that there is no positioning result of the mobile base station that meets the LCS QoS requirements of the terminal, matching with the position indicated by the first indication information
  • the mobile base station performs a positioning process to obtain the location of the mobile base station, or executes a positioning process with the mobile base station indicated by the first indication information to obtain the positioning information of the mobile base station, and determines the mobile base station according to the positioning information s position.
  • the method further includes: sending the location of the mobile base station to the terminal.
  • the method further includes: when there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal, sending the positioning result of the mobile base station that meets the LCS QoS requirement to the terminal.
  • the location determination request message includes the LCS QoS requirement of the terminal.
  • the location of the mobile base station is used as the location of the terminal connected to the mobile base station.
  • the location of the mobile base station can be used as the location of the terminal, so as to control the location of the terminal connected to the mobile base station.
  • the terminal of the mobile base station realizes the purpose of effectively locating its position, and also reduces the system complexity and signaling overhead of locating the terminal.
  • an embodiment of the present application provides a positioning method applied to a mobile base station, including: receiving first positioning request information from a terminal, where the first positioning request information is used to request to acquire location information of the terminal, and the The terminal is a terminal accessing the mobile base station; sending second positioning request information to the AMF, where the second positioning request information is used to obtain the position of the mobile base station; receiving the position of the mobile base station from the AMF; The location of the mobile base station is sent to the terminal.
  • the first positioning request information and the second positioning request information include: first indication information, where the first indication information is used to indicate the mobile base station.
  • the first location request information and the second location request information further include: the LCS QoS requirement of the terminal.
  • the sending the second positioning request information to the AMF includes: sending the second positioning request information to the AMF when there is no positioning result of the mobile base station that meets the LCS QoS requirements of the terminal request information.
  • sending the location information of the mobile base station to the terminal includes: if there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal, sending the location information of the mobile base station that meets the LCS QoS requirement The positioning result of the mobile base station is sent to the terminal.
  • the receiving the first positioning request information from the terminal includes: receiving the first positioning request information from the terminal through RRC signaling and/or MAC CE signaling.
  • the mobile base station realizes the purpose of effectively locating the terminal by judging whether it has the positioning result of the mobile base station itself that meets the LCS QoS requirements of the terminal, and realizes that the location of the positioning terminal is equivalent to the location of the mobile base station.
  • the embodiment of the present application provides a positioning method applied to a terminal, including: sending an uplink NAS message to the AMF, where the NAS message includes first indication information, and the first indication information is used to instruct the terminal to access into the mobile base station.
  • the NAS message also includes the LCS QoS requirement of the terminal.
  • the positioning method further includes: receiving second indication information, where the second indication information is used to indicate that the base station accessed by the terminal is a mobile base station; sending the NAS message to the AMF includes: based on the sending the NAS message to the AMF through the second indication information.
  • the terminal requests to locate the location of the terminal by sending a NAS message to the AMF, and the NAS message carries the first indication information, so that the AMF can know that the current terminal accesses the network through a mobile base station.
  • the embodiment of the present application provides a positioning method, including: the uplink NAS of the terminal sends a positioning message to the AS of the terminal; the AS of the terminal sends the first positioning request information to the mobile base station accessed by the terminal , the first location request information is used to request to obtain location information of the terminal, where the terminal is a terminal accessing the mobile base station.
  • the NAS layer of the terminal sends location request information to the AS layer, so that the terminal can directly send the first location request information to the mobile base station it accesses through AS layer signaling, which simplifies the signaling overhead of location.
  • an embodiment of the present application provides a positioning method, including: receiving an uplink NAS message from a terminal, where the NAS message includes first indication information, and the first indication information is used to indicate a mobile base station, and the mobile base station is The mobile base station accessed by the terminal; sending a location determination request message to the LMF, where the location determination request message includes the first indication information.
  • the NAS message and the location determination request message also include the LCS QoS requirement of the terminal.
  • the AMF receives the first indication information of the NAS message and sends the first indication information to the LMF, so that the LMF can know that the current terminal accesses the network through the mobile base station, and enables the positioning terminal to locate the mobile base station. , realizing the positioning of the terminal accessing the mobile base station.
  • the embodiment of the present application provides a positioning device, including: a location acquisition module, configured to acquire a location of a mobile base station; a location determination module, configured to use the location of the mobile base station as a location for accessing the mobile base station The location of the terminal.
  • the embodiment of the present application provides a positioning device, including: an information receiving module, configured to receive first positioning request information from a terminal, where the first positioning request information is used to request acquisition of position information of the terminal, so The terminal is a terminal that accesses the positioning device; the information sending module is used to send the second positioning request information to the AMF, and the second positioning request information is used to obtain the position of the positioning device; the position receiving module is used to Receive the location of the positioning device from the AMF; a location sending module, configured to send the location information of the positioning device to the terminal.
  • the embodiment of the present application provides a positioning device, including: a NAS message sending module, configured to send an uplink NAS message to the AMF, the uplink NAS message includes first indication information, and the first indication information is used to indicate The mobile base station that the terminal accesses.
  • the embodiment of the present application provides a positioning device, including: a positioning message sending module, configured to send a positioning message from an uplink NAS to an uplink AS; a positioning request sending module, used to send a first positioning message to a mobile base station in the AS Positioning request information, the positioning device is a positioning device that accesses the mobile base station.
  • the embodiment of the present application provides a positioning device, including: a NAS message receiving module, configured to receive an uplink NAS message from a terminal, the NAS message includes first indication information, and the first indication information is used to indicate that the mobile The base station, where the mobile base station is a mobile base station accessed by the terminal; a position determination request sending module, configured to send a position determination request message to the LMF, where the position determination request message includes the first indication information.
  • the embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is run by a computer, any one of the above positioning methods is executed.
  • the embodiment of the present application provides a positioning device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes when running the computer program Any of the positioning methods above.
  • a computer-readable storage medium including a computer program.
  • the computer program is executed by a computer, any one of the above positioning methods is executed.
  • a positioning system including one or more of the foregoing LMF, AMF, mobile base station, and terminal.
  • the location of the mobile base station is used as the location of the terminal connected to the mobile base station.
  • the location of the mobile base station can be used as the location of the terminal, so that the docking The terminal entering the mobile base station achieves the purpose of effectively determining its location, and also reduces the system complexity and signaling overhead of locating the terminal.
  • FIG. 1 is a schematic diagram of a working scene of a mobile base station in the prior art
  • Fig. 2 is a kind of 5G network architecture diagram in the embodiment of the present application.
  • Fig. 3 is an interaction flowchart of a positioning method in the embodiment of the present application.
  • Fig. 4 is an interaction flowchart of another positioning method in the embodiment of the present application.
  • Fig. 5 is an interaction flowchart of another positioning method in the embodiment of the present application.
  • Fig. 6 is an interaction flowchart of another positioning method in the embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of the first positioning device in the embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of the second positioning device in the embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a third positioning device in the embodiment of the present application.
  • Fig. 10 is a schematic structural diagram of a fourth positioning device in the embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a fifth positioning device in the embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems for data processing, for example: communication supporting fourth generation (fourth generation, 4G) access technology (such as long term evolution (long term evolution, LTE) access technology) system; or, the communication system may also be a communication system that supports the fifth generation (fifth generation, 5G) access technology (such as a new air interface (New Radio, NR) access technology); or, the communication system may also be a communication system that supports Third generation (third generation, 3G) access technology (such as universal mobile telecommunications system (universal mobile telecommunications system, UMTS) access technology) communication system; or, the communication system can also support multiple wireless technologies (such as support LTE access technology and NR access technology) communication system.
  • the communication system can also be adapted to future-oriented communication technologies.
  • the system architecture described in the embodiments of the present application is to illustrate the technical solutions of the embodiments of the present application more clearly, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • the method provided is applied to an NR system or a 5G network as an example for illustration.
  • the method provided in the embodiment of the present application can also be applied to other networks, for example, it can be applied to an evolved packet system (evolved packet system, EPS) network (that is, a so-called 4G network).
  • EPS evolved packet system
  • 4G network so-called 4G network
  • the network node executing the method provided in the embodiment of the present application can be replaced with a network node in the EPS network having the same or corresponding functions.
  • FIG. 2 is a diagram of a 5G network architecture in an embodiment of the present application.
  • the 5G network may include the following network functions (network functions, NF) entities: authentication server function (authentication server function, AUSF) entity, access and mobility management function (Access and Mobility Management Function, AMF) entity, data network (data network, DN), unified data management (unified data management, UDM) entity, policy control function (policy control function, PCF) entity, (wireless) access network ((radio) access network, (R)AN) entity , user plane function (user plane function, UPF) entity, user equipment (user equipment, UE), application function (application function, AF) entity, session management function (session management function, SMF) entity, location management function (Location Management Function, LMF) entities, etc.
  • network functions network functions
  • NF network functions
  • authentication server function authentication server function, AUSF
  • AMF Access and Mobility Management Function
  • AMF Access and Mobility Management Function
  • data network data network
  • DN data network
  • FIG. 2 is only an exemplary architecture diagram.
  • the 5G network architecture may also include other functional entities.
  • a network opening may also be included between the AF entity and the PCF entity.
  • NEF network exposure function
  • an entity may also be referred to as a network element or a device.
  • the UDM entity, AUSF entity, PCF entity, AMF entity, SMF entity, and LMF entity in FIG. 2 may also be collectively referred to as a control plane function (control plane function, CPF) entity, which is not specifically limited in this embodiment of the present application.
  • CPF control plane function
  • the (R)AN is a network composed of multiple access network devices, and implements wireless physical layer functions, resource scheduling and wireless resource management, wireless access control, and mobility management functions.
  • the access network device is connected to the UPF through the user plane interface N3, and is used to transmit the terminal (that is, the UE above, which can also be called a mobile station, a subscriber unit, a station, and a terminal device ( terminal equipment, TE) etc.) data.
  • the access network device establishes a control plane signaling connection with the AMF through the control plane interface N2 to implement functions such as wireless access bearer control.
  • AMF is mainly responsible for terminal authentication, terminal mobility management, network slice selection, SMF selection and other functions.
  • the AMF acts as the anchor point of the N1 and N2 signaling connection and provides the routing of the N1/N2 interface session management (session management, SM) message for the SMF; maintains and manages the status information of the terminal.
  • SMF is mainly responsible for all control plane functions of terminal session management, including UPF selection, network interconnection protocol (internet protocol, IP) address allocation, session quality of service (quality of service, QoS) management, obtaining policy and charging control from PCF (policy and charging control, PCC) strategy, etc.
  • UPF is responsible for data packet filtering, data transmission/forwarding, rate control, and generating billing information for terminals.
  • the LMF manages the overall coordination and scheduling of the resources required to register to the 5G Core Network (Core Network, CN) or the location of the terminal accessing the 5G CN, and can also calculate or verify the final position or velocity estimate, and can estimate the achieved accuracy.
  • Core Network Core Network
  • the terminal in the process of the terminal accessing the access network equipment, the terminal can directly access the access network equipment, or can access the access network equipment through a mobile base station (as shown in Figure 1, at this time, the access network equipment
  • the network access device is the primary base station), which is not limited in this application.
  • the mobile base station 102 is equivalent to a base station relative to the terminal 101 , that is, the terminal 101 may access the mobile base station 102 through the Uu interface.
  • the mobile base station 102 is equivalent to a terminal relative to the main base station 103 , that is, the mobile base station 102 accesses the main base station 103 through the Uu interface.
  • the protocol stack of the mobile base station 102 may include a physical layer, layer 2, a radio resource control (Radio Resources Control, RRC) layer, a non-access stratum (Non-Access Stratum, NAS) and so on.
  • RRC Radio Resource Control
  • NAS non-access stratum
  • the (R)AN entity, AMF entity, SMF entity, AUSF entity, UDM entity, UPF entity, PCF entity, and LMF entity in Figure 2 are just names, and the names do not limit the entities themselves.
  • the network elements or devices corresponding to these entities may also have other names, which are not specifically limited in this embodiment of the present application.
  • the UDM entity may be replaced by a user home server (home subscriber server, HSS) or a user subscription database (user subscription database, USD) or a database entity, etc., which will be uniformly described here and will not be described in detail below.
  • the method provided by the embodiment of this application can also be applied to the network slicing of the 5G network.
  • the network slicing technology is to divide a physical network into multiple virtual end-to-end networks. Between each virtual network, there are devices, Access technology, transmission path and core network are logically independent. Each network slice is composed of an independent network function or function combination instantiation, with different functional characteristics, and for different requirements and services. The separation of network slices enables different users and user groups to flexibly and dynamically define and customize network capabilities according to their different application scenarios and requirements without affecting each other.
  • a network slice includes CPF entities and UPF entities.
  • the CPF entity mainly completes access control and mobility management functions such as terminal access authentication, security encryption, and location registration, as well as session management functions such as the establishment, release, and modification of user plane transmission paths.
  • the UPF entity mainly completes user plane Data routing and forwarding functions.
  • the access network device in the embodiment of the present application may be a device used on the access network side to support terminal access to the communication system, for example, it may be a base station transceiver in a second generation (second generation, 2G) access technology communication system Base transceiver station (BTS) and base station controller (base station controller, BSC), node B (node B) and radio network controller (radio network controller, RNC) in the 3G access technology communication system, 4G access
  • BTS Base transceiver station
  • BSC base station controller
  • node B node B
  • RNC radio network controller
  • the terminal in this embodiment of the present application may be a device that provides voice or data connectivity to a user.
  • a terminal can be a cellular phone (cellular phone), a personal digital assistant (personal digital assistant, PDA), a wireless modem (modem), a handheld device (handheld), a laptop computer (laptop computer), a cordless phone (cordless phone) , wireless local loop (wireless local loop, WLL) station, tablet computer (pad) and so on.
  • devices that can access the communication system, communicate with the network side of the communication system, or communicate with other objects through the communication system can all be terminals in the embodiments of this application, for example, intelligent transportation Terminals and cars in smart homes, household devices in smart homes, power meter reading instruments in smart grids, voltage monitoring instruments, environmental monitoring instruments, video surveillance instruments in smart security networks, cash registers, etc.
  • the 3rd Generation Partnership Project (3GPP) completed a version of terminal positioning based on NR signals in R16, which made up for the deficiency that the R15 standard does not support positioning based on NR signals.
  • the positioning standards of the 3GPP R16 version support various NR signal-based uplink and downlink positioning technologies, terminal and base station positioning measurement, uplink and downlink positioning reference signal design, positioning process and terminal positioning based on NR signals.
  • Common positioning methods based on downlink positioning reference signal (Positioning Reference Signal, PRS) (ie DL PRS) or uplink sounding reference signal (Sounding Reference Signal, SRS) (ie UL SRS) include positioning based on time difference of arrival (Time difference of Arriva, TDOA) or angle-based positioning.
  • PRS Positioning Reference Signal
  • SRS Sounding Reference Signal
  • the DL PRS is generally sent by the access network device, and the terminal performs measurement and reports the measurement result or location estimation result to the LMF.
  • the UL SRS is sent by the terminal, and the access network device performs measurement and reports the measurement result to the LMF.
  • the LMF calculates the location of the terminal based on the measurement results or location estimation results of the terminal and/or access network equipment.
  • LMF in order to support PRS and SRS measurement, LMF needs to configure appropriate PRS or SRS for terminal or access network equipment, and instruct terminal or access network equipment to measure appropriate PRS or SRS.
  • the LMF determines the PRS or SRS configuration, or instructs the terminal or the access network device to measure the specific PRS or SRS, it is determined according to the location of the specific access network device currently accessed by the terminal.
  • the LMF cannot determine the configuration of the PRS or SRS, and thus cannot realize the positioning function, making it difficult to determine the current location of the terminal.
  • the position of the mobile base station is used as the position of the terminal connected to the mobile base station, so that even if the mobile base station is constantly moving, the position of the terminal can still be determined, and effective monitoring of the terminal can be realized. position.
  • the present application can specifically be realized through the following scheme 1 or scheme 2.
  • scheme 1 the LMF uses the location of the mobile base station as the location of the terminal, and sends the location of the mobile base station to the terminal.
  • scheme 2 the mobile base station obtains its own location and sends its own location to the terminal .
  • the scheme 1 and scheme 2 are described in detail below.
  • scheme one includes S301 and S302 (S represents step (step)):
  • the LMF obtains the location of the mobile base station.
  • S301 may be implemented through the following manner 1 or manner 2 during specific implementation.
  • the LMF directly obtains the location of the mobile base station.
  • the LMF acquires positioning information, and determines the position of the mobile base station according to the positioning information.
  • the method also includes:
  • the AMF sends a location determination request message to the LMF, where the location determination request message includes first indication information, and the first indication information is used to indicate the mobile base station.
  • the LMF receives a location determination request message from the AMF.
  • method 1 may include in specific implementation: the LMF and the mobile base station indicated by the first indication information perform a positioning procedure to acquire the position of the mobile base station.
  • method 2 may include: the LMF executes a positioning process with the mobile base station indicated by the first indication information, acquires the positioning information of the mobile base station, and determines the position of the mobile base station according to the positioning information.
  • the LMF and the mobile base station can adopt a suitable positioning method to execute a positioning process.
  • the positioning method used can be one or more of the following methods: enhanced cell ID (Enhanced Cell ID, E-CID) positioning method based on LTE signal, NR enhanced cell ID (NR E-CID) based on NR signal Positioning methods, NR signal-based uplink time difference of arrival positioning method (UL-TDOA), NR signal-based uplink angle of arrival positioning method (UL-AoA), NR signal-based downlink time difference of arrival positioning method (DL-TDOA), The downlink angle of departure positioning method (DL-AOD) based on NR signals, the multiple round-trip time positioning method (Multi-RTT) based on NR signals, and the observed time difference of arrival (OTDOA) positioning method based on LTE signals. Do limit.
  • the specific positioning process is well known to those skilled in the art, and will not be repeated here.
  • the first indication information may be a cell identifier of the mobile base station, for example, a physical cell identifier (Physical Cell Identifier, PCI) or a cell global identity (Cell Global Identity, CGI), or an identifier of the mobile base station, for example, gNB ID, eNodeB ID and other information that can uniquely identify the mobile base station.
  • a cell identifier of the mobile base station for example, a physical cell identifier (Physical Cell Identifier, PCI) or a cell global identity (Cell Global Identity, CGI), or an identifier of the mobile base station, for example, gNB ID, eNodeB ID and other information that can uniquely identify the mobile base station.
  • PCI Physical Cell Identifier
  • CGI Cell Global Identity
  • the location determination request message includes the location service (Location Services, LCS) quality of service (Quality of Service, QoS) requirement of the terminal.
  • LCS QoS requirements may include one or more of the following parameters: LCS QoS level, positioning accuracy and response time.
  • the LCS QoS level defines the degree of dependence between positioning services and other QoS parameters (such as accuracy).
  • QoS parameters such as accuracy
  • the best-effort level defines the most relaxed QoS requirements, that is, if the current estimated position cannot meet other QoS requirements, the positioning result can still be fed back to the positioning requester. If the estimated position cannot be obtained, an Error is returned.
  • the certainty level defines the most stringent accuracy requirements that a location request can satisfy. That is, if the current estimated location cannot meet other QoS requirements, the positioning result will be discarded.
  • Positioning accuracy can be divided into horizontal accuracy and vertical accuracy.
  • Response time can be divided into no delay, low delay, and delay tolerance.
  • the method also includes:
  • the terminal sends an uplink NAS message to the AMF, where the NAS message includes the above-mentioned first indication information.
  • the AMF receives the NAS message from the terminal.
  • the uplink NAS message is sent to the AMF through the mobile base station and the primary base station in sequence.
  • the NAS message also includes the terminal's LCS QoS requirements.
  • the terminal's LCS QoS requirements in the location determination request message sent by the AMF to the LMF may come from the uplink NAS message.
  • the terminal requests the location of the terminal by sending a NAS message to the AMF, and the NAS message carries the first indication information, which enables the AMF to know that the current terminal accesses the network through a mobile base station.
  • the method further includes: the terminal receiving second indication information, where the second indication information is used to indicate that the base station accessed by the terminal is a mobile base station.
  • the terminal sending the uplink NAS message to the AMF in S22) may include: the terminal sending the NAS message to the AMF based on the second indication information.
  • the second indication information is sent by the serving base station, such as a mobile base station or a primary base station, to the terminal through one or more of the following information: system information, RRC signaling, and medium access control (Medium Access Control, MAC ) control unit (MAC Control Element, MAC CE), downlink control information (Downlink Control Information, DCI).
  • system information such as a mobile base station or a primary base station
  • RRC signaling such as a mobile base station or a primary base station
  • MAC Control Element Medium Access Control
  • MAC CE Medium Access Control Element
  • DCI Downlink Control Information
  • the second indication information may be indicated by one or more bits. For example, when indicated by one bit, if the bit is 0, it means that the base station accessed by the terminal is not a mobile base station; if the bit is 1, it means that the base station accessed by the terminal is not A base station is a mobile base station and vice versa.
  • the second indication information may be carried in a newly added field or in an existing field, which is not limited in this application.
  • the method further includes: the terminal generates an uplink NAS message.
  • the uplink NAS message sent by the terminal may specifically be an uplink non-access stratum transport (UL NAS transport) message, and the UL NAS transport message may include a Mobile Originated Location Request (Mobile Originated Location Request, MO-LR) request information,
  • the MO-LR request information includes LCS QoS requirement information.
  • the uplink NAS message sent by the terminal may also be a NAS Location Notification Feedback Result (NAS Location Notification Return Result) message, which is responsible for privacy verification of the terminal.
  • the NAS location notification feedback result message is triggered by a positioning request initiated by an external AF or an external client, that is, a Mobile Terminated Location Request (MT-LR) request.
  • MT-LR Mobile Terminated Location Request
  • the NAS message in S22 may be the MO-LR request message itself, or the privacy verification feedback message triggered by the MT-LR. That is to say, the positioning process involved in this application can be based on MO-LR request or MT-LR request. This application does not limit it.
  • the detailed process of specific MO-LR and MT-LR request process can refer to 3GPP The relevant descriptions in the communication protocol TS 23.273 will not be repeated here.
  • the current location request can include three types, namely MO-LR, MT-LR and Network Induced Location Request (NI-LR).
  • MO-LR MO-LR
  • MT-LR MT-LR
  • NI-LR Network Induced Location Request
  • MO-LR is the location request sent by the mobile terminal to the current serving Public Land Mobile Network (PLMN);
  • PLMN Public Land Mobile Network
  • MT-LR is the location request initiated by the LCS client, internal or external AF to the current serving PLMN ;
  • NI-LR is the location request initiated by the service AMF of the terminal for supervision services, such as the emergency call of the terminal.
  • the LMF uses the location of the mobile base station as the location of the terminal accessing the mobile base station.
  • the method further includes:
  • the LMF sends the location of the mobile base station to the terminal.
  • the terminal receives the location of the mobile base station, and in the subsequent process, the terminal may use the location of the mobile base station as its own location.
  • the LMF may send the location of the mobile base station to the terminal through the AMF, the primary base station, and the mobile base station in sequence.
  • the LMF can obtain the position of the mobile base station through mode 1 or mode 2, and send the position of the mobile base station to the terminal. If there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal in the LMF, the positioning result of the mobile base station that meets the LCS QoS requirement is sent to the terminal. Regarding the latter, when S301 is specifically implemented, the LMF may locally obtain the location of the mobile base station.
  • the LMF can determine that there is a positioning result of the mobile base station that meets the LCS QoS requirements of the terminal when it is determined that there is a positioning result of the mobile base station that meets some or all of the parameters in the LCS QoS requirements of the terminal; The positioning result of the mobile base station according to the LCS QoS requirement of the terminal.
  • the LMF can first judge whether the LCS QoS level meets the requirements, if so, then confirm whether the positioning accuracy meets the requirements, if so, then determine whether the response time meets the requirements, and if so, determine that there is a location that meets the requirements of the terminal Otherwise, it is determined that there is no positioning result of the mobile base station that meets the LCS QoS requirements of the terminal. It should be pointed out that the order of judgment and the number of parameters for judgment here are only examples, and there may be other orders and/or numbers of parameters in actual implementation, which are not limited in this application.
  • the terminal sends a NAS message to the AMF, and the AMF sends a location determination request message to the LMF, and the LMF acquires the location of the mobile base station and sends the location of the mobile base station to the terminal, or the terminal sends a NAS message to the AMF , AMF sends the positioning result of the mobile base station that meets the LCS QoS requirements of the terminal to the terminal, so that the positioning of the terminal can be effectively determined and the gap in the existing technology is filled.
  • the location of the mobile base station is used as the location of the terminal connected to the mobile base station, and the location of the terminal can be determined during the non-stop movement of the mobile base station, so as to realize effective positioning, which reduces the system complexity and signaling overhead in the process of locating the terminal.
  • the mobile base station sends second indication information to the terminal, where the second indication information is used to indicate that the base station accessed by the terminal is the mobile base station.
  • the terminal receives the second indication information.
  • the terminal sends an uplink NAS message to the AMF based on the second indication information, where the NAS message includes first indication information, and the first indication information is used to indicate a mobile base station accessed by the terminal.
  • the AMF receives the uplink NAS message sent by the terminal.
  • the AMF sends a location determination request message to the LMF, where the location determination request message includes the first indication information.
  • the LMF receives the location determination request message sent by the AMF.
  • the LMF determines whether there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal.
  • the LMF performs a positioning process with the mobile base station indicated by the first indication information, and acquires the position of the mobile base station, or, the LMF performs a positioning process with the mobile base station indicated by the first indication information, acquires the positioning information of the mobile base station, and determines the location of the mobile base station according to the positioning information. The location of the base station.
  • the LMF takes the location of the mobile base station as the location of the terminal accessing the mobile base station.
  • the LMF sends the location of the mobile base station to the terminal.
  • the terminal receives the location of the mobile base station.
  • the terminal may use the location of the mobile base station as its own location.
  • Scheme 2 includes S501 to S504:
  • the terminal sends first location request information to a mobile base station accessed by the terminal, where the first location request information is used to request to acquire location information of the terminal.
  • the mobile base station receives first positioning request information from the terminal.
  • the mobile base station accessed by the terminal is the serving mobile base station of the terminal.
  • the terminal may send the first positioning request information to the mobile base station accessed by the terminal at the AS layer.
  • the terminal may send the first positioning request information to the mobile base station accessed by the terminal through RRC signaling and/or MAC CE signaling.
  • the mobile base station receives the first location request information from the terminal through RRC signaling and/or MAC CE signaling.
  • the method further includes: the uplink NAS of the terminal sends a positioning message to the AS of the terminal.
  • the AS of the terminal may execute S501 under the trigger of the positioning message.
  • the NAS layer of the terminal sends a positioning message to the AS layer, so that the terminal can directly send the first positioning request information to the mobile base station it accesses through AS layer signaling, so that the positioning request message in the existing solution
  • the transmission is transferred from the NAS layer to the AS layer, and the number of signaling hops is reduced from 4 hops to 1 hop, which greatly reduces the positioning delay and simplifies the signaling overhead of positioning, so as to realize the positioning of the terminal through the mobile base station .
  • the mobile base station sends second location request information to the AMF, where the second location request information is used to acquire the location of the mobile base station.
  • the AMF receives the second location request information from the mobile base station.
  • the first positioning request information and the second positioning request information include: first indication information, where the first indication information is used to indicate the mobile base station. Relevant descriptions about the first indication information can be referred to above, and will not be repeated here. Wherein, the first indication information in the second positioning request information may come from the first positioning request information.
  • the first location request information and the second location request information also include: LCS QoS requirements of the terminal.
  • the LCS QoS requirement of the terminal in the second location request information may come from the first location request information.
  • the second positioning request information may be a NAS message
  • the NAS message may specifically be a UL NAS transport message
  • the message may include a MO-LR request
  • the MO-LR request may include LCS QoS requirement information
  • the mobile base station may execute S502 when there is no positioning result of the mobile base station that meets the LCS QoS requirement of the terminal. If the mobile base station has a positioning result of the mobile base station that satisfies the LCS QoS requirement of the terminal, the mobile base station may directly perform S504 below after performing step S501.
  • the mobile base station Before S502, the mobile base station can determine whether there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal, so as to decide which step to perform.
  • the AMF sends the location of the mobile base station to the mobile base station according to the second location request information.
  • the mobile base station receives the location of the mobile base station from the AMF.
  • the AMF may send the location of the mobile base station to the mobile base station through the main base station.
  • the method also includes:
  • the AMF sends a location determination request message to the LMF, and the location determination request message includes the first indication information.
  • the LMF receives a location determination request message from the AMF.
  • the LMF and the mobile base station perform a positioning process to obtain the position of the mobile base station; or, the LMF and the mobile base station perform a positioning process to obtain positioning information of the mobile base station, and determine the position of the mobile base station according to the positioning information.
  • the LMF sends the location of the mobile base station to the AMF.
  • the location determination request message includes the LCS QoS requirement of the terminal.
  • determining the LCS QoS requirement of the terminal in the location request message may come from the second location request information.
  • the first indication information in the determined location request message may come from the second location request information.
  • Determining the LCS QoS requirements of the terminal in the location request message is used by the LMF to determine whether there is location information of the mobile base station that meets the LCS QoS requirements of the terminal. If it exists, S33) can be executed directly after S31), if not, in S31) Afterwards, the position of the mobile base station is obtained through S32), and then S33) is executed.
  • the mobile base station plays a role of a terminal.
  • the mobile base station sends the location of the mobile base station to the terminal.
  • the terminal receives the location of the mobile base station.
  • the terminal may use the location of the mobile base station as its own location.
  • the NAS of the terminal sends a positioning message to the AS of the terminal
  • the AS of the terminal sends the first positioning request information to the mobile base station
  • the mobile base station sends the second positioning request information to the AMF
  • the location of the mobile base station is sent to the terminal, so that the location of the terminal can be effectively determined, and the gap in the prior art is filled.
  • the location of the mobile base station is used as the location of the terminal connected to the mobile base station, and the location of the terminal can be determined during the non-stop movement of the mobile base station, so as to realize effective positioning, which reduces the system complexity and signaling overhead in the process of locating the terminal.
  • S601 The NAS of the terminal sends a positioning message to the AS of the terminal.
  • the AS of the terminal sends first location request information to the mobile base station accessed by the terminal, where the first location request information is used to request to acquire location information of the terminal.
  • the mobile base station receives the first positioning request information sent by the terminal.
  • the first positioning request information includes first indication information, and the first indication information is used to indicate the mobile base station.
  • the first location request information includes: LCS QoS requirements of the terminal.
  • the mobile base station determines whether there is location information of the mobile base station that meets the LCS QoS requirement of the terminal.
  • the mobile base station can determine according to the first indication information that what the terminal needs to obtain is the location of the mobile base station, and the mobile base station can determine whether there is a mobile base station that meets the LCS QoS requirements of the terminal according to the LCS QoS requirements of the terminal in the first location request information positioning results.
  • the mobile base station sends second location request information to the AMF, where the second location request information is used to obtain the location of the mobile base station.
  • the second positioning request information includes the first indication information.
  • the first indication information in the second positioning request information may come from the first positioning request information.
  • the second location request information includes the LCS QoS requirement of the terminal.
  • the LCS QoS requirement of the terminal in the second location request information may come from the first location request information.
  • the mobile base station can interact with the AMF through the primary base station.
  • the AMF sends a location determination request message to the LMF, where the location determination request message includes the first indication information.
  • the LMF receives a location determination request message from the AMF.
  • the location determination request message includes the LCS QoS requirement of the terminal.
  • determining the LCS QoS requirement of the terminal in the location request message may come from the second location request information.
  • the first indication information in the determined location request message may come from the second location request information.
  • the LMF determines whether there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal.
  • the LMF can determine according to the first indication information that what the terminal needs to obtain is the location of the mobile base station, and the LMF can determine whether there is a positioning result of the mobile base station that meets the LCS QoS requirements of the terminal according to the LCS QoS requirements of the terminal in the location determination request message.
  • the LMF and the mobile base station perform a positioning process to obtain the location of the mobile base station; or, the LMF and the mobile base station perform a positioning process to obtain positioning information of the mobile base station, and determine the position of the mobile base station according to the positioning information.
  • the LMF sends the location of the mobile base station to the AMF.
  • the AMF receives the location of the mobile base station from the LMF.
  • the AMF sends the location of the mobile base station to the mobile base station.
  • the mobile base station receives the location of the mobile base station from the AMF.
  • S610 The mobile base station sends the location of the mobile base station to the terminal.
  • the terminal may use the location of the mobile base station as its own location.
  • FIG. 7 is a schematic structural diagram of the first positioning device in the embodiment of the present application.
  • the positioning device may be the above-mentioned LMF, including: a position acquisition module 71, configured to acquire the position of the mobile base station;
  • a location determining module 72 configured to use the location of the mobile base station as the location of a terminal accessing the mobile base station.
  • the position obtaining module 71 includes: a positioning information determining sub-module, configured to obtain positioning information; a first position determining sub-module, configured to determine the position of the mobile base station according to the positioning information.
  • the device further includes: a message receiving module, configured to receive a location determination request message from an access and mobility management function AMF, wherein the location determination request message includes first indication information, and the first indication information used to indicate the mobile base station;
  • the position obtaining module 71 includes: a position obtaining sub-module, configured to perform a positioning process with the mobile base station indicated by the first indication information, and acquire the position of the mobile base station, or, move with the mobile base station indicated by the first indication information
  • the base station executes a positioning process, acquires the positioning information of the mobile base station, and determines the position of the mobile base station according to the positioning information.
  • the position acquisition submodule includes: a position acquisition unit configured to communicate with the first indication if there is no positioning result of the mobile base station that meets the LCS QoS requirements of the terminal's positioning service.
  • the mobile base station indicated by the information executes a positioning process to obtain the location of the mobile base station, or executes a positioning process with the mobile base station indicated by the first indication information to obtain the positioning information of the mobile base station, and determines the location of the mobile base station according to the positioning information. The location of the mobile base station.
  • the apparatus further includes: a location sending module, configured to send the location of the mobile base station to the terminal.
  • the device further includes: a positioning result sending module, configured to send the positioning result of the mobile base station that meets the LCS QoS requirement of the terminal's positioning service to the LCS QoS requirement when there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal's location service.
  • the positioning result of the mobile base station is sent to the terminal.
  • the location determination request message includes the LCS QoS requirement of the terminal.
  • FIG. 8 is a schematic structural diagram of a second positioning device in the embodiment of the present application.
  • the positioning device may be the above-mentioned mobile base station, including:
  • An information receiving module 81 configured to receive first positioning request information from a terminal, where the first positioning request information is used to request to obtain location information of the terminal, where the terminal is a terminal that accesses the positioning device;
  • An information sending module 82 configured to send second positioning request information to the AMF, where the second positioning request information is used to obtain the location of the positioning device;
  • a position receiving module 83 configured to receive the position of the positioning device from the AMF
  • a position sending module 84 configured to send the position information of the positioning device to the terminal.
  • first positioning request information and the second positioning request information include: first indication information, where the first indication information is used to indicate the mobile base station.
  • first location request information and the second location request information further include: the location service LCS quality of service (QoS) requirement of the terminal.
  • QoS quality of service
  • the information sending module 82 includes: an information sending submodule, configured to send the second message to the AMF when there is no positioning result of the mobile base station that meets the LCS QoS requirements of the terminal. Location request information.
  • the location sending module 84 includes: a location sending submodule, configured to send the mobile base station that satisfies the LCS QoS requirement of the terminal when there is a positioning result of the mobile base station that meets the LCS QoS requirement of the terminal. The positioning result of the mobile base station is sent to the terminal.
  • the information receiving module 81 includes: an information receiving submodule, configured to receive the first positioning request from the terminal through radio resource control RRC signaling and/or medium access control control element MAC CE signaling information.
  • the embodiment of the present application also discloses a positioning device, which may include: a NAS message sending module, configured to send an uplink NAS message to the AMF, the uplink NAS message includes first indication information, and the first indication information is used to indicate The mobile base station that the terminal accesses.
  • a NAS message sending module configured to send an uplink NAS message to the AMF
  • the uplink NAS message includes first indication information
  • the first indication information is used to indicate The mobile base station that the terminal accesses.
  • the NAS message also includes the location service LCS quality of service (QoS) requirement of the terminal.
  • QoS quality of service
  • the device further includes: a second indication information receiving module, configured to receive second indication information, and the second indication information is used to indicate that the base station accessed by the terminal is a mobile base station; the NAS message sending module The method includes: a NAS message sending submodule, configured to send the NAS message to the AMF based on the second indication information.
  • FIG. 9 is a schematic structural diagram of a third positioning device in the embodiment of the present application.
  • the positioning device may be a terminal, including:
  • a location message sending module 91 configured to send a location message to the uplink access layer AS at the uplink non-access layer NAS;
  • the positioning request sending module 92 is configured to send the first positioning request information to the mobile base station at the access layer AS, and the positioning device is a positioning device for accessing the mobile base station.
  • FIG. 10 is a schematic structural diagram of a fourth positioning device in an embodiment of the present application.
  • the fourth positioning device can be used for AMF, and can also include:
  • a NAS message receiving module 101 configured to receive an uplink NAS message from a terminal, where the NAS message includes first indication information, and the first indication information is used to indicate a mobile base station;
  • a position determination request sending module 102 configured to send a position determination request message to the LMF, where the position determination request message includes the first indication information.
  • the NAS message and the location determination request message also include the location service LCS quality of service (QoS) requirement of the terminal.
  • QoS quality of service
  • the above-mentioned devices shown in Figures 7 to 10 may correspond to a chip with a data processing function in a user device; or correspond to a chip module including a chip with a data processing function in a user device, or correspond to a chip module in a user device .
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is run by a computer, the above positioning method is executed.
  • the readable storage medium may be a computer-readable storage medium, for example, may include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory, and may also include an optical disk, a mechanical hard disk, a solid-state hard disk, and the like.
  • the embodiment of the present application also provides a positioning device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the above positioning method when running the computer program .
  • FIG. 11 is a schematic structural diagram of a fifth positioning device in an embodiment of the present application.
  • the apparatus 1100 comprises at least one processor 1101 and at least one memory 1102 for storing computer programs and/or data.
  • the memory 1102 is coupled with the processor 1101 .
  • the processor 1101 is configured to run the computer program and/or data stored in the memory 1102 to implement the positioning method described above.
  • the coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the memory 1102 may also be located outside the device 1100 .
  • the processor 1101 can cooperate with the memory 1102 .
  • Processor 1101 may execute computer programs stored in memory 1102 . At least one of the at least one memory may be included in the processor.
  • the apparatus 1100 may further include a communication interface 1103, and the communication interface 1103 is used to communicate with other devices through a transmission medium, so that the modules used in the apparatus 1100 can communicate with other devices.
  • the communication interface 1103 may be a transceiver, a circuit, a bus, a module or other types of communication interfaces.
  • connection medium among the communication interface 1103, the processor 1101, and the memory 1102 is not limited.
  • the memory 1102 and the communication interface 1103 are both connected to the processor 1101 in FIG. 11 .
  • the memory 1102, the communication interface 1103, and the processor 1101 may also be connected through a bus, and the bus may be divided into an address bus, a data bus, a control bus, and the like.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or Execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and may also be a volatile memory (volatile memory), such as Random-access memory (RAM).
  • a memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing computer programs and/or data.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present application will be generated.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment or other programmable devices.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be downloaded from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, SSD).
  • a magnetic medium for example, a floppy disk, a hard disk, or a magnetic tape
  • an optical medium for example, a digital video disc (digital video disc, DVD for short)
  • a semiconductor medium for example, SSD
  • each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit and partly a hardware module/unit.
  • each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components of the chip module, or at least some modules/units can be realized by means of software programs, The software program runs on the processor integrated in the chip module, and the remaining (if any) modules/units can be realized by hardware such as circuits; /Units can be realized by means of hardware such as circuits

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Abstract

L'invention concerne un procédé et un appareil de positionnement, ainsi qu'un support de stockage lisible, se rapportant au domaine technique des communications. Le procédé consiste à obtenir une position d'une station de base mobile, puis à considérer la position de la station de base mobile comme une position d'un terminal accédant à la station de base mobile. Selon la présente demande, la position de la station de base mobile peut être considérée comme la position du terminal dans le processus de déplacement continu de la station de base mobile, ce qui permet de déterminer efficacement la position du terminal accédant à la station de base mobile, ainsi que de réduire la complexité du système et le surdébit de signalisation de positionnement du terminal.
PCT/CN2022/116979 2021-09-27 2022-09-05 Procédé et appareil de positionnement, et support de stockage lisible WO2023045741A1 (fr)

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CN111836182A (zh) * 2019-04-10 2020-10-27 电信科学技术研究院有限公司 一种终端定位服务方法及装置
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Publication number Priority date Publication date Assignee Title
CN101938695A (zh) * 2010-09-14 2011-01-05 华为技术有限公司 计费方法、装置及系统
CN106341883A (zh) * 2016-08-23 2017-01-18 中国联合网络通信集团有限公司 定位的方法及装置
US20190236870A1 (en) * 2018-02-01 2019-08-01 Telus Communications Inc. System and method for mobile base station authentication
CN113261332A (zh) * 2018-12-31 2021-08-13 三星电子株式会社 用于在无线通信系统中发送或接收数据的方法和装置
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