WO2020151757A1 - Procédé et système de localisation - Google Patents

Procédé et système de localisation Download PDF

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Publication number
WO2020151757A1
WO2020151757A1 PCT/CN2020/073950 CN2020073950W WO2020151757A1 WO 2020151757 A1 WO2020151757 A1 WO 2020151757A1 CN 2020073950 W CN2020073950 W CN 2020073950W WO 2020151757 A1 WO2020151757 A1 WO 2020151757A1
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WO
WIPO (PCT)
Prior art keywords
network device
information
positioning
network
management function
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PCT/CN2020/073950
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English (en)
Chinese (zh)
Inventor
刘亮
李娜
陈宁宇
胡南
李男
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2020151757A1 publication Critical patent/WO2020151757A1/fr

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    • 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
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • 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
    • H04W4/029—Location-based management or tracking services

Definitions

  • the present disclosure relates to the field of communication technology, in particular to a positioning method and system.
  • LCS Location-based services
  • UE User Equipment, user equipment or terminal
  • the access network includes: multiple network devices (such as base station gNB), and access network It is connected to the AMF (Access Management Function) of the core network through the NG-C interface; the AMF is connected to the LMF (Location Management Function) through the NLs interface, and the LMF is connected to the positioning server E-SMLC (Evolved Serving).
  • AMF Access Management Function
  • LMF Location Management Function
  • E-SMLC Evolved Serving
  • Mobile Location Center the evolved service mobile location center
  • SLP Service Location Protocol, service location protocol
  • Process 1 includes:
  • the location service client (Extemal Client) sends a location service request to GMLC (Gateway Mobile Location Center)/LRF (Location Retrieval Function, location acquisition functional entity);
  • AMF sends a location request to LMF
  • LMF sends positioning information to AMF
  • the AMF sends the positioning information to the terminal through the RAN (Radio Access Network).
  • RAN Radio Access Network
  • Process 2 includes:
  • AMF sends uplink location information to LMF
  • AMF sends location response to GMLC/LRF
  • GMLC/LRF sends a location service response to the location service client.
  • the positioning process based on the architecture in related technologies has some problems in supporting low-latency positioning requirements and services with high regional security.
  • the positioning time delay mainly includes the time measured and calculated by the UE, the time calculated by the positioning server, the intermediate nodes (such as the processing time of AMF and gNB), and the transmission delay between nodes.
  • the positioning assistance data or positioning request sent by the positioning server to the terminal needs to be first sent to the core network, and then sent to the base station by the core network, and then sent to the terminal;
  • the data received by the base station also needs to be sent to the core network first, and then to the positioning server. For some local positioning services deployed near the base station, additional transmission and processing delay will be caused.
  • One type of application scenario for positioning services in related technologies is industrial applications, such as factories. For security reasons, customers in this vertical industry do not want terminal positioning data to be transmitted outside the factory area, but according to the process in Figure 2 , The positioning data needs to be sent to the AMF.
  • the core network AMF is deployed in a centralized manner and is deployed at a higher position in the network. Therefore, the architecture in related technologies cannot meet the security requirements of certain vertical industry applications.
  • the present disclosure provides a positioning method and system to save positioning time delay.
  • the embodiments of the present disclosure provide the following solutions:
  • a positioning method includes:
  • the location management function located in the access network receives information sent by the network equipment in the access network or sends information to the network equipment.
  • the access network includes: at least one network device, and the positioning management function is a network device in the access network or a function in the network device.
  • the access network includes: at least two network devices, and at least one of the at least two network devices is provided with the positioning management function.
  • the location management function receiving the information sent by the network device includes:
  • the positioning management function receives the first information reported by the terminal through the at least one network device; or
  • the positioning management function receives the second information sent by the at least one network device.
  • the first information includes: at least one of measurement data used to locate the location of the terminal and location information of the terminal;
  • the second information includes: measurement data used to locate the position of the terminal.
  • the location management function sending information to the network device includes:
  • the positioning management function sends third information to the at least one network device; or
  • the positioning management function sends fourth information to the terminal through the at least one network device.
  • the third information or the fourth information includes: positioning assistance data.
  • the first network device of the at least two network devices receives information sent by the second network device of the at least two network devices or sends information to the second network device through the interface between the network devices .
  • the information includes at least one of the following: physical cell identification of network equipment service, global cell identification, transmission point identification, transmission point time information of network equipment service, transmission point location information of network equipment service, transmission of network equipment service Point positioning reference signal configuration information, signal transmission or reception angle information, time advance information, carrier phase information, received signal power or quality measurement information, and terminal reception and transmission time difference information.
  • the first network device receiving information sent by the second network device of the at least two network devices or sending information to the second network device includes:
  • the first network device selects at least one second network device for uplink reference signal measurement according to the feedback result
  • the first network device receives the uplink reference signal measurement result sent by the second network device for locating the position of the terminal.
  • the location management function of the adjacent network device passes the network The interface between the devices receives the information sent by the service network device.
  • the information sent or received between the network devices is transmitted through an interface protocol or a positioning protocol between network devices.
  • the positioning method further includes: the positioning management function sends information to the core network.
  • the location management function sending information to the core network includes:
  • the positioning management function sends information to the access management function of the core network through the interface of the positioning service or the interface between the access network network device and the core network.
  • the embodiment of the present disclosure also provides a positioning system, including an access network, the access network including:
  • the location management function is used to receive information sent by a network device in the access network or send information to the network device.
  • the access network includes: at least one network device, and the positioning management function is a network device in the access network or a function in the network device.
  • the access network includes: at least two network devices, and at least one of the at least two network devices is provided with the positioning management function.
  • the positioning management function receives the first information reported by the terminal through the at least one network device; or
  • the positioning management function receives the second information sent by the at least one network device.
  • the first information includes: at least one of measurement data used to locate the location of the terminal and location information of the terminal;
  • the second information includes: measurement data used to locate the position of the terminal.
  • the positioning management function sends third information to the at least one network device.
  • the positioning management function sends fourth information to the terminal through the at least one network device.
  • the third information or the fourth information includes: positioning assistance data.
  • the first network device of the at least two network devices receives information sent by the second network device of the at least two network devices or sends information to the second network device through the interface between the network devices .
  • the first network device sends an uplink reference signal measurement configuration request to the second network device;
  • the first network device selects at least one second network device for uplink reference signal measurement according to the feedback result
  • the first network device receives the uplink reference signal measurement result sent by the second network device for locating the position of the terminal.
  • the location management function of the adjacent network device passes the network The interface between the devices receives the information sent by the service network device.
  • the location management function is also used to send information to the core network.
  • the embodiment of the present disclosure further provides a positioning device, including a processor and a memory storing a computer program, and the computer program executes the method described above when the computer program is run by the processor.
  • Embodiments of the present disclosure also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method described above.
  • the information sent by the network device in the access network is received or sent to the network device through the location management function located in the access network, and the location information of the terminal can be obtained based on the information, thereby saving positioning Time delay.
  • Figure 1 is a schematic diagram of a terminal positioning architecture in related technologies
  • Figure 2 is a schematic diagram of a terminal positioning process in related technologies
  • FIG. 3 is a schematic flowchart of a terminal positioning method according to an embodiment of the disclosure.
  • FIG. 4 is a schematic diagram of a system architecture of a centralized location service according to an embodiment of the disclosure.
  • FIG. 5 is an architecture of a distributed local positioning service according to an embodiment of the disclosure.
  • FIG. 6 is a schematic diagram of a positioning process under the distributed local positioning service architecture of the present disclosure.
  • an embodiment of the present disclosure provides a positioning method, including:
  • Step 31 The location management function LMF located in the access network receives information sent by a network device in the access network or sends information to the network device;
  • Step 32 The LMF performs positioning calculation according to the information to obtain location information of the terminal.
  • the location management function LMF located in the access network receives information sent by the network device in the access network or sends information to the network device; the LMF performs location calculation based on the information to obtain a terminal Location information. Thereby saving positioning delay.
  • the access network includes: at least one network device, and the positioning management function is a network device in the access network or a function in the network device.
  • the access network includes: at least one network device (such as an NG-RAN node or a base station), and the location management function is a network device in the access network;
  • the network devices can be connected through the Xn interface communication, and the network device and the LMF can be connected through the interface.
  • the LMF receiving the information sent by the network device in the access network in the above method can include:
  • Step 311 The LMF receives the first information uplink position measurement data reported by the terminal through the at least one network device; or, the LMF receives the second information sent by the at least one network device.
  • the first information here includes: at least one of measurement data used to locate the location of the terminal and location information of the terminal; the second information includes: measurement data used to locate the location of the terminal.
  • Step 312 The LMF performs positioning calculation according to the measurement data to obtain location information of the terminal;
  • the LMF communicates with the access management function AMF of the core network through the NLs interface.
  • the positioning method may also include:
  • Step 313 The LMF sends information to the core network, specifically, sends the location information of the terminal to the core network.
  • the LMF sends the location information of the terminal to the access management function AMF of the core network through the interface of the location service or the interface between the access network network equipment and the core network.
  • the location management function sending information to the network device may include:
  • the positioning management function sends third information to the at least one network device; or
  • the positioning management function sends fourth information to the terminal through the at least one network device.
  • the third information or the fourth information here includes: positioning assistance data.
  • the access network includes: at least two network devices (such as NG-RAN nodes or base stations), and the at least two At least one of the network devices is provided with the location management function LMF, and the network devices can be communicated and connected through an Xn interface.
  • the above method can include:
  • Step 411 The first network device of the at least two network devices exchanges information with the second network device of the at least two network devices through the interface between the network devices, for example, interacts with the terminal location Measurement data.
  • the measurement data that the first network device interacts with the second network device to locate the terminal position includes at least one of the following information :
  • the interaction of the first network device and the second network device with the measurement data used to locate the position of the terminal includes:
  • the first network device sends an uplink reference signal measurement configuration request to the second network device; for example, it includes at least one of a periodic SRS (Sounding Reference Signal) activation indication and a potential SRS transmission configuration;
  • a periodic SRS Sounding Reference Signal
  • the SRS configuration feedback result includes allocated SRS resources and related parameters
  • the first network device selects at least one second network device for uplink reference signal measurement according to the feedback result
  • the first network device receives the uplink reference signal measurement result sent by the second network device for locating the position of the terminal.
  • the information related to the interaction between the base stations is transmitted through the inter-base station interface protocol (AP protocol), or the related information of the interaction between the base stations is encapsulated in a positioning-related protocol, such as NRPPa, which is transmitted as a container on the interface between the base stations.
  • AP protocol inter-base station interface protocol
  • NRPPa positioning-related protocol
  • Step 412 The LMF performs positioning calculation according to the measurement data to obtain location information of the terminal;
  • the LMF communicates with the AMF of the core network through the NLs interface, and the positioning method may also include:
  • the LMF sends information to the core network, for example, sends the location information of the terminal to the core network.
  • the LMF sends the location information of the terminal to the access management function AMF of the core network through the interface of the location service or the interface between the access network network equipment and the core network.
  • the UTDOA positioning process of the distributed positioning service system architecture includes:
  • Step 1 The first base station decides to locate a terminal through UTDOA, and sends an SRS measurement configuration request to neighboring base stations, including a periodic SRS activation indication and potential SRS transmission configuration;
  • Step 2 The second base station determines the uplink SRS resources of the terminal, configures corresponding resources for the terminal through RRC, and sends the resource configuration and parameters to the first base station;
  • Step 3 The first base station selects the second base station list for uplink SRS measurement according to the feedback result of the second base station;
  • Step 4 The first base station sends an SRS measurement request to the selected second base station;
  • Step 5 The second base station sends the SRS measurement result to the first base station
  • Step 6 The first base station calculates the UE position according to the SRS measurement results of each base station.
  • the access network includes at least two network devices (such as NG-RAN nodes or base stations), and the at least two At least one of the network devices is provided with the LMF, and when the serving network device of the terminal does not have the LMF, and the adjacent network device of the serving network device has the LMF, the foregoing method may include:
  • Step 511 The LMF of the adjacent network device receives the information sent by the serving network device, such as measurement data used to locate the position of the terminal, through the interface between the network devices.
  • the information sent or received between the network devices is transmitted through an interface protocol (such as AP protocol) or a positioning protocol between network devices.
  • Step 512 The LMF performs positioning calculation according to the measurement data to obtain location information of the terminal;
  • the LMF communicates with the AMF of the core network through the NLs interface, and the positioning method may also include:
  • Step 513 The LMF sends information to the core network, for example, sends the location information of the terminal to the core network.
  • the LMF sends the location information of the terminal to the access management function AMF of the core network through the interface of the location service or the interface between the access network network equipment and the core network.
  • the method in this embodiment is an E-CID positioning method. If the serving base station of the UE in the access network does not support the local positioning function, but the neighboring base station supports it (with local LMF). The serving base station can simultaneously send the UE measurement result and the base station measurement result to the neighboring base station through the interface between the base stations, and the neighboring base station (with localLMF) calculates the location of the UE before sending it to the UE.
  • the wireless access network supports at least one of the following positioning-related functions: LMF, a positioning calculation function, to obtain terminal downlink position-related measurement data or terminal position estimation data, obtain uplink position-related measurement data, and interact with AMF Positioning request / positioning request reply related information.
  • LMF positioning-related functions
  • a positioning calculation function to obtain terminal downlink position-related measurement data or terminal position estimation data, obtain uplink position-related measurement data, and interact with AMF Positioning request / positioning request reply related information.
  • the wireless access network introduces a logical node LMF with local positioning management function, and the base station establishes an interface with the logical node with local positioning management function.
  • the base station has a local positioning management function, which exchanges positioning-related assistance data and/or coordination information of positioning resources through the interface between base stations, and the base station interacts with the core network to exchange positioning requests/responding to relevant information.
  • the architecture and interface information interaction content and method of the local positioning service proposed in the present disclosure can effectively meet the positioning requirements of lower delay and high reliability in the 5G system.
  • the embodiment of the present disclosure also provides a positioning system, including an access network, the access network including:
  • the location management function is used to receive information sent by a network device in the access network or send information to the network device.
  • the access network includes: at least one network device, and the positioning management function is a network device in the access network or a function in the network device.
  • the access network includes: at least two network devices, and at least one of the at least two network devices is provided with the positioning management function.
  • the positioning management function receives the first information reported by the terminal through the at least one network device; or
  • the positioning management function receives the second information sent by the at least one network device.
  • the first information includes: at least one of measurement data used to locate the location of the terminal and location information of the terminal;
  • the second information includes: measurement data used to locate the position of the terminal.
  • the positioning management function sends third information to the at least one network device.
  • the positioning management function sends fourth information to the terminal through the at least one network device.
  • the third information or the fourth information includes: positioning assistance data.
  • the first network device of the at least two network devices receives information sent by the second network device of the at least two network devices or sends information to the second network device through the interface between the network devices .
  • the information includes at least one of the following: physical cell identification of network equipment service, global cell identification, transmission point identification, transmission point time information of network equipment service, transmission point location information of network equipment service, and transmission point location of network equipment service Reference signal configuration information, signal transmission or reception angle information, time advance information, carrier phase information, received signal power or quality measurement information, and terminal reception and transmission time difference information.
  • the first network device sends an uplink reference signal measurement configuration request to the second network device;
  • the first network device selects at least one second network device for uplink reference signal measurement according to the feedback result
  • the first network device receives the uplink reference signal measurement result sent by the second network device for locating the position of the terminal.
  • the location management function of the adjacent network device passes the network The interface between the devices receives the information sent by the service network device.
  • the information sent or received between the network devices is transmitted through an interface protocol (such as AP protocol) or a positioning protocol between the network devices.
  • an interface protocol such as AP protocol
  • a positioning protocol between the network devices.
  • the location management function is also used to send information to the core network.
  • the positioning management function sends information to the access management function AMF of the core network through the interface of the positioning service or the interface between the access network network equipment and the core network.
  • the embodiment of the present disclosure further provides a positioning device, including a processor and a memory storing a computer program, and the computer program executes the method described above when the computer program is run by the processor.
  • Embodiments of the present disclosure also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method described above.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • each component or each step can be decomposed and/or recombined. These decomposition and/or recombination should be regarded as equivalent solutions of the present disclosure.
  • the steps of performing the above-mentioned series of processing can naturally be performed in chronological order in the order of description, but do not necessarily need to be performed in chronological order, and some steps can be performed in parallel or independently of each other.
  • Those of ordinary skill in the art can understand that all or any of the steps or components of the methods and devices of the present disclosure can be used in any computing device (including a processor, storage medium, etc.) or a network of computing devices, using hardware and firmware , Software, or a combination of them. This can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.
  • the purpose of the present disclosure can also be realized by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the purpose of the present disclosure can also be achieved only by providing a program product including program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that, in the device and method of the present disclosure, obviously, each component or each step can be decomposed and/or recombined.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP Device, DSPD), programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this disclosure Electronic unit or its combination.
  • ASICs application specific integrated circuits
  • DSP digital signal processors
  • DSP Device digital signal processing devices
  • DPD digital signal processing devices
  • PLD programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present disclosure can be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.

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Abstract

Conformément à des modes de réalisation, la présente invention concerne un procédé et un système de localisation. Le procédé comprend les étapes suivantes : une fonction de gestion de localisation (LMF) située dans un réseau d'accès reçoit des informations transmises par un dispositif de réseau dans le réseau d'accès ou transmet des informations au dispositif de réseau.
PCT/CN2020/073950 2019-01-24 2020-01-23 Procédé et système de localisation WO2020151757A1 (fr)

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CN201910069560.5A CN111479220B (zh) 2019-01-24 2019-01-24 定位方法及系统

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CN114786121B (zh) * 2022-04-07 2024-06-11 中国联合网络通信集团有限公司 一种定位方法、装置、系统及存储介质
CN117014798A (zh) * 2022-04-29 2023-11-07 大唐移动通信设备有限公司 信息传输方法、载波相位定位方法及装置
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