WO2021217377A1 - 基于mec的定位方法、设备及无线通信系统 - Google Patents

基于mec的定位方法、设备及无线通信系统 Download PDF

Info

Publication number
WO2021217377A1
WO2021217377A1 PCT/CN2020/087334 CN2020087334W WO2021217377A1 WO 2021217377 A1 WO2021217377 A1 WO 2021217377A1 CN 2020087334 W CN2020087334 W CN 2020087334W WO 2021217377 A1 WO2021217377 A1 WO 2021217377A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
terminal
network element
information
request information
Prior art date
Application number
PCT/CN2020/087334
Other languages
English (en)
French (fr)
Inventor
杨明月
周润泽
朱方园
马景旺
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080100134.4A priority Critical patent/CN115443664A/zh
Priority to PCT/CN2020/087334 priority patent/WO2021217377A1/zh
Priority to EP20933381.4A priority patent/EP4135351A4/en
Publication of WO2021217377A1 publication Critical patent/WO2021217377A1/zh
Priority to US17/973,735 priority patent/US20230040349A1/en

Links

Images

Classifications

    • 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
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • 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
    • 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

Definitions

  • This application relates to the technical field of mobile communication networks, and in particular to a positioning method, equipment and wireless communication system based on mobile edge computing (MEC).
  • MEC mobile edge computing
  • 5G and 4G evolved packet core network both support positioning open business services for specific terminals (user equipment, UE). That is, the core network can communicate to external customers through network exposure function (NEF) network elements, service capability exposure function (SCEF) network elements, and network management mobile location center (GMLC) network elements.
  • NEF network exposure function
  • SCEF service capability exposure function
  • GMLC network management mobile location center
  • An external client external client
  • an application function application function, AF
  • the terminal exchanges data with the selected location management function (LMF) network element in the core network, that is, the positioning function entity, for example, when the measurement data (measurement data) is exchanged
  • LMF location management function
  • all The uplink and downlink data are forwarded through the control plane channel.
  • the LMF network element sends measurement request information (used to request the terminal to report measurement data) to the terminal, and the terminal reports measurement data to the LMF network element
  • the measurement request information and measurement data need to be accessed by the access and mobility management function. (access and mobility management function, AMF) network elements forward.
  • AMF access and mobility management function
  • the AMF network element is deployed in the high-level core network (such as the middle of the core network), when the data interaction between the terminal and the LMF network element is forwarded through the AMF network element, it will cause the terminal and the LMF network element to be forwarded.
  • the transmission time corresponding to the inter-data transmission is relatively long, which increases the positioning delay of the terminal.
  • the embodiments of the present application provide an MEC-based positioning method, equipment, and wireless communication system, which are used to shorten the positioning delay of a terminal.
  • the present application provides a positioning method based on mobile edge computing MEC.
  • the method includes: a first network element receives first positioning request information sent by a positioning requester, and the first positioning request information is used to request a terminal For positioning, the first positioning request information carries the identification information of the terminal; the first network element determines the positioning function entity for positioning the terminal according to the first positioning request information, and the positioning function The entity is a positioning server; the first network element obtains second positioning request information according to the first positioning request information, and sends the second positioning request information to the positioning server to trigger the positioning server to pass the user plane Position the terminal.
  • the positioning function entity for positioning the terminal can be determined as the positioning server according to the first positioning request information, which is convenient for the subsequent positioning server according to the second positioning request sent by the first network element
  • the information is positioned by the user facing the terminal, avoiding the problem of large positioning delay caused by interaction through the transmission path of the control plane, that is, forwarding through the first network element, so that the positioning server close to the terminal and the access device can be selected to perform the positioning of the terminal.
  • Positioning can shorten the transmission distance between the terminal and the positioning server, thereby reducing the transmission time required for data transmission between the terminal and the positioning server, further reducing the positioning delay of the terminal, and helping to improve the user experience.
  • the method further includes: the first network element determines that the positioning requester responds to the time delay according to the positioning delay requirement or the first indication information carried in the first positioning request information. For high demands.
  • the first network element can determine the delay requirements for terminal positioning according to the positioning delay requirements or the first indication information carried in the first positioning request information, so as to meet the positioning requester's rapid positioning requirements for the terminal. .
  • the first network element determining the positioning server for positioning the terminal according to the first positioning request information includes: the first network element according to the identification information of the terminal, Acquire the first location information of the terminal, and obtain the configuration information of at least one positioning server, where the configuration information of the at least one positioning server includes area information under the jurisdiction of the at least one positioning server; the first network element is based on the The first location information of the terminal and the configuration information of the at least one positioning server determine the positioning server for positioning the terminal.
  • the first network element can determine the positioning server for positioning the terminal from the at least one positioning server according to the first position information of the terminal and the configuration information of the at least one positioning server, which can ensure that the determined positioning server is Close to the terminal and the access network equipment, which can shorten the transmission distance between the positioning server and the terminal, further reduce the transmission time required for data transmission between the terminal and the positioning server, and thus shorten the positioning time of the positioning server to the terminal. Extension.
  • the first location information of the terminal is target tracking area identification TAI information;
  • the area information managed by the at least one positioning server is tracking area identification TAI information managed by the at least one positioning server.
  • the first network element obtaining the second positioning request information according to the first positioning request information includes: the first network element obtaining the network of the terminal according to the identification information of the terminal Address; the first network element obtains the second positioning request information according to the first positioning request information and the network address of the terminal, where the second positioning request information includes the network address of the terminal.
  • the first network element can obtain the network address of the terminal according to the identification information of the terminal, which is convenient for the subsequent positioning server to locate the terminal by the user facing the terminal according to the network address of the terminal, thereby shortening the transmission distance between the positioning server and the terminal ,
  • the transmission time required for data transmission between the terminal and the positioning server can be further reduced, and the positioning delay of the positioning server to the terminal can be shortened.
  • the first network element obtains the network address of the terminal according to the identification information of the terminal, including: the first network element compares the identification information of the terminal with the location server's The information is sent to the session management function SMF network element; the first network element obtains the network address of the terminal sent by the SMF network element.
  • the first network element can obtain the network address of the terminal through the SMF network element when the data connection corresponding to the terminal is successfully established, which is convenient for the subsequent positioning server to locate the terminal by the user facing the terminal according to the network address of the terminal, which can shorten
  • the transmission distance between the positioning server and the terminal can further reduce the transmission time required for data transmission between the terminal and the positioning server, thereby reducing the positioning delay of the positioning server to the terminal.
  • the first network element acquiring the network address of the terminal according to the identification information of the terminal includes: the first network element sending information of the positioning server to the terminal, Trigger the terminal to establish a data connection between the terminal and the positioning server; the first network element obtains the network address of the terminal sent by the SMF network element, and the network address is the data connection established by the network Assigned to the terminal during the process.
  • the first network element can trigger the terminal to establish a data connection between the terminal and the positioning server when the data connection corresponding to the terminal is not established, so as to obtain the network address assigned to the terminal by the network during the establishment of the data connection. It is convenient for the subsequent positioning server to locate the terminal by the user according to the network address of the terminal, thereby shortening the transmission distance between the positioning server and the terminal, and further reducing the transmission time required for data transmission between the terminal and the positioning server. Shorten the positioning delay of the positioning server to the terminal.
  • the sending of the second positioning request information by the first network element to the positioning server includes: the first network element uses the network open function NEF network element to position the second position The request information is sent to the positioning server.
  • the first network element determines that the positioning requester has high requirements for delay according to the positioning delay requirements carried in the first positioning request information, including: the first network When the element determines that the positioning delay requirement is less than or equal to the preset duration threshold, it is determined that the positioning requester has a high requirement for the delay. Among them, the positioning requester has a high requirement on the time delay, which means that the time delay required for the positioning requester to request the positioning of the terminal is low.
  • the first network element determines the delay requirement for terminal positioning when determining that the positioning delay requirement carried in the first positioning request information is less than or equal to the preset duration threshold, so as to satisfy the positioning requester’s request to the terminal. Demand for rapid positioning.
  • the first network element determines that the positioning requester has a high requirement on time delay, including: the first indication The information indicates a low-latency positioning service, and the first network element determines, according to the first indication information, that the positioning requester has a high-delay requirement.
  • the low-latency service means that the positioning requester requests the positioning service to locate the terminal with low delay.
  • the first network element determines the delay requirement for terminal positioning according to the first indication information that indicates the low-latency positioning service carried in the first positioning request information, so as to meet the rapid positioning of the terminal by the positioning requester. need.
  • the information of the positioning server is a data network name DNN or an Internet Protocol IP address corresponding to the positioning server.
  • the positioning requester is the terminal or an external client with positioning requirements.
  • the first network element can support the positioning requirements of different positioning requesters for the terminal.
  • the present application also provides an MEC-based positioning method.
  • the method includes: a terminal receiving measurement request information sent by a positioning server through a data connection between the terminal and the positioning server, where the measurement request information carries There is the network address of the terminal; the terminal reports the measurement data obtained by the measurement to the positioning server through the data connection, so that the positioning server calculates the second location information of the terminal according to the measurement data.
  • the terminal in the process of positioning the terminal, the terminal can interact with the positioning server through the user plane transmission path of the terminal, thereby avoiding interaction through the control plane transmission path, that is, forwarding through the first network element.
  • the problem of large positioning delay can further shorten the transmission distance between the terminal and the positioning server, and can achieve the purpose of reducing the transmission time required for data transmission between the terminal and the positioning server, thereby shortening the positioning delay of the terminal. Helps improve the user experience.
  • the method before the terminal receives the measurement request information sent by the positioning server through the data connection between the terminal and the positioning server, the method further includes: receiving, by the terminal, network trigger information sent by the first network element, The network trigger information includes information of the positioning server; the terminal sends establishment request information for establishing a data connection between the terminal and the positioning server to the SMF network element according to the network trigger information, so as to establish the Data Connections.
  • the terminal when the data connection corresponding to the terminal is not established, the terminal can send to the SMF network element the establishment request information for establishing the data connection between the terminal and the positioning server to trigger the SMF network element to create the data connection corresponding to the terminal, which is convenient Subsequent positioning server and terminal interact through this data connection, which can shorten the transmission distance between the positioning server and the terminal, further reduce the transmission time required for data transmission between the terminal and the positioning server, and thus shorten the positioning server to the terminal. The positioning delay.
  • the present application also provides an MEC-based positioning method.
  • the method includes: a positioning server receives second positioning request information sent by a first network element, where the second positioning request information carries the network address of the terminal The positioning server sends measurement request information to the terminal through the data connection between the terminal and the positioning server according to the network address of the terminal carried in the second positioning request information, the measurement request The information is used to request the terminal to report measurement data; the positioning server receives the measurement data reported by the terminal through the data connection, and calculates the second location information of the terminal according to the measurement data.
  • the positioning server in the process of positioning the terminal, can interact with the terminal through the user plane transmission path of the terminal, thereby avoiding interaction through the control plane transmission path, that is, forwarding through the first network element.
  • the problem of large positioning delay can further shorten the transmission distance between the terminal and the positioning server, and can achieve the purpose of reducing the transmission time required for data transmission between the terminal and the positioning server, thereby shortening the positioning delay of the terminal. Helps improve the user experience.
  • the positioning server sends measurement request information to the terminal through a data connection between the terminal and the positioning server according to the network address of the terminal carried in the positioning request information , Including: the positioning server sends the network address of the terminal and the measurement request information to the user plane function UPF network element, so that the UPF performs the measurement through the data connection according to the network address of the terminal
  • the request information is forwarded to the terminal.
  • the positioning server forwards the measurement information to the terminal through the UPF network element according to the network address information of the terminal, so that the measurement information can be sent to the terminal through the user plane transmission path of the terminal, thereby avoiding interaction through the control plane transmission path That is, forwarding through the AMF network element causes a problem of large positioning delay, which can further shorten the positioning delay of the terminal and help improve the user experience.
  • the method further includes: if the positioning requester is the terminal, the positioning server feeds back the second location information to the terminal through a network open function NEF network element; or, If the positioning requester is an external client with positioning requirements, the positioning server feeds back the second location information to the external client through the GMLC network element of the service capability opening function.
  • the positioning server can support the positioning requirements of different positioning requesters for the terminal.
  • this application also provides a first network element that has the function of implementing the first aspect or any of the possible design methods in the first aspect, and the function may be implemented by hardware , It can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions, such as a receiving unit, a processing unit, and a sending unit.
  • the first network element may also be a chip or an integrated circuit.
  • the first network element may include a memory and a processor, and the memory is used to store a program executed by the processor.
  • the program is executed by the processor, the first network element
  • the method described in the foregoing first aspect or any one of the possible designs of the first aspect may be implemented.
  • this application also provides a first network element, including: at least one processor and a memory; the memory stores one or more computer programs; when one or more computer programs stored in the memory are When executed by at least one processor, the first network element is caused to execute the foregoing first aspect or any one of the possible design methods of the foregoing first aspect.
  • the present application also provides a computer-readable storage medium, the computer-readable storage medium includes a computer program, when the computer program runs on a computer, the computer executes the first aspect or the first aspect described above Any one of the possible design methods.
  • the present application also provides a program product, which when the program product runs on a computer, causes the computer to execute the above-mentioned first aspect or any one of the possible design methods of the above-mentioned first aspect.
  • the present application also provides a chip, which can be coupled with a memory in a first network element, and is used to call a computer program stored in the memory and execute the above-mentioned first aspect and any one of the possible design methods thereof .
  • this application also provides a terminal that has the function of implementing the second aspect or any one of the possible design methods of the second aspect, and the function may be implemented by hardware or executed by hardware
  • the corresponding software implementation includes one or more modules corresponding to the above-mentioned functions, such as a receiving unit and a sending unit.
  • the terminal may also be a chip or an integrated circuit.
  • the terminal may include a memory and a processor, and the memory is used to store a program executed by the processor.
  • the terminal may execute the second aspect described above. Or the method described in any of the possible designs of the second aspect.
  • the present application also provides a terminal, including: at least one processor and a memory; the memory stores one or more computer programs; when one or more computer programs stored in the memory are processed by the at least one When the device is executed, the terminal is caused to execute the foregoing second aspect or any one of the possible design methods of the foregoing second aspect.
  • the present application also provides a computer-readable storage medium, which includes a computer program.
  • the computer program runs on a computer, the computer executes the above-mentioned second aspect or the above-mentioned second aspect. Any one of the possible design methods.
  • this application also provides a program product, which when the program product runs on a computer, causes the computer to execute the above-mentioned second aspect or any one of the possible design methods of the above-mentioned second aspect.
  • the present application also provides a chip, which can be coupled with a memory in a terminal, and is used to call a computer program stored in the memory and execute the above-mentioned second aspect and any one of the possible design methods thereof.
  • the present application also provides a positioning server that has the function of implementing the third aspect or any of the possible design methods in the third aspect.
  • the function can be implemented by hardware or Implementation of the corresponding software through hardware.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions, such as a receiving unit, a processing unit, and a sending unit.
  • the positioning server may also be a chip or an integrated circuit.
  • the positioning server may include a memory and a processor, and the memory is used to store a program executed by the processor.
  • the positioning server may execute the foregoing The method described in the third aspect or any one of the possible designs of the third aspect.
  • this application also provides a positioning server, including: at least one processor and a memory; the memory stores one or more computer programs; when the one or more computer programs stored in the memory are at least When a processor is executed, the positioning server is caused to execute the foregoing third aspect or any one of the possible design methods of the foregoing third aspect.
  • this application also provides a computer-readable storage medium, the computer-readable storage medium includes a computer program, when the computer program runs on a computer, the computer executes the third aspect or the third aspect. Any one of the possible design methods.
  • this application also provides a program product, which when the program product runs on a computer, causes the computer to execute the foregoing third aspect or any one of the possible design methods of the foregoing third aspect.
  • this application also provides a chip, which can be coupled with a memory in a positioning server, and is used to call a computer program stored in the memory and execute the third aspect and any one of the possible design methods.
  • this application also provides a wireless communication system, the wireless communication system including a first network element and a positioning server.
  • the first network element is used to perform the steps performed by the first network element in the above-mentioned first aspect or the solution provided in the embodiment of this application;
  • the positioning server is used to perform the above-mentioned third aspect, or the steps implemented in this application.
  • the steps in the solution provided by the example are executed by the positioning server.
  • the wireless communication system may further include a terminal, and the terminal is configured to perform the steps performed by the terminal in the second aspect described above or in the solution provided in the embodiments of the present application.
  • the wireless communication system may also include other devices that interact with the first network element, the positioning server, or the terminal in the solution provided in the embodiment of the present application, such as a session management network. Yuan, access equipment, etc., which are not specifically limited in the embodiment of the present application.
  • FIG. 1 is a schematic diagram of the architecture of a wireless communication system to which an embodiment of this application is applicable;
  • FIG. 2 is a schematic diagram of the architecture of another wireless communication system to which an embodiment of this application is applicable;
  • FIG. 3 is a schematic diagram of the architecture of a 5G wireless communication system to which an embodiment of this application is applicable;
  • FIG. 4 is a schematic flowchart of an MEC-based positioning method provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of another MEC-based positioning method provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of another MEC-based positioning method provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of another 5G wireless communication system to which an embodiment of this application is applicable.
  • FIG. 8 is a schematic structural diagram of a first network element to which an embodiment of this application is applicable.
  • FIG. 9 is a schematic structural diagram of another first network element to which an embodiment of this application is applicable.
  • FIG. 10 is a schematic structural diagram of a terminal to which an embodiment of this application is applicable.
  • FIG. 11 is a schematic structural diagram of another terminal applicable to an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of a positioning server to which an embodiment of this application is applicable.
  • FIG. 13 is a schematic structural diagram of another positioning server applicable to the embodiment of this application.
  • the wireless communication system 100 may include a first network element 101 and a positioning function entity 102.
  • the wireless communication system 100 provided in the embodiment of the present application is applicable to both low-frequency scenarios (sub 6G) and high-frequency scenarios (above 6G).
  • the application scenarios of the wireless communication system 100 provided in the embodiments of this application include, but are not limited to, global system of mobile communication (GSM) system, code division multiple access (CDMA) system, and broadband code division multiple access.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • broadband code division multiple access broadband code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G future fifth generation
  • 5NR new radio
  • the first network element 101 and the positioning function entity 102 may directly communicate with each other, or may communicate through the forwarding of other devices; this embodiment of the present application does not specifically limit this. in:
  • the first network element 101 is configured to receive first positioning request information sent by a positioning requester, where the first positioning request information is used to request positioning of a terminal, where the first positioning request information carries identification information of the terminal.
  • the first network element 101 is further configured to determine a positioning function entity 102 for positioning the terminal according to the first positioning request information, and the positioning function entity 102 is a positioning server;
  • the first network element 101 is further configured to obtain second positioning request information according to the first positioning request message, and send the second positioning request information to the positioning server, so as to trigger the positioning server to perform positioning through the user facing the terminal.
  • the positioning function entity 102 is configured to receive the second positioning request information sent from the first network element 101, and perform positioning on the terminal by the user according to the second positioning request information.
  • the first network element after receiving the first positioning request information sent by the positioning requester for requesting the positioning of the terminal, the first network element can obtain the second positioning request information and transfer the second positioning request information. Sent to the positioning server to trigger the positioning server to locate the terminal through the user. Based on the wireless communication system provided by the embodiment of the present application, since the positioning server can locate the terminal through the user, the data interaction between the positioning server and the terminal is forwarded through the first network element without being forwarded through the control plane channel, which can shorten The transmission distance between the positioning server and the terminal can further reduce the transmission time required for data transmission between the terminal and the positioning server, thereby reducing the positioning delay of the positioning server to the terminal.
  • the first network element 101 may include, but is not limited to, a mobility management network element and a gateway mobile location center.
  • a mobility management network element in addition to having the aforementioned functions, it can also be used for mobility management in a mobile network, such as user location update, user registration network, user handover, and so on.
  • the network element or entity corresponding to the mobility management network element can be the access and mobility management function (AMF) network element in the 5G network architecture
  • Namf is a service-based interface provided by AMF network elements.
  • AMF network elements can communicate with other network functions through Namf.
  • the mobile management network elements can still It is an AMF network element, or a mobility management network element has another name, which is not limited in the embodiment of the present application.
  • the first network element 101 is the gateway mobile location center
  • the above-mentioned first network element 101 can also be used for processing the positioning request of the positioning service, and selecting a suitable mobile management network element for the positioning service.
  • the gateway mobile location center can be (gateway mobile location center, GMLC).
  • GMLC gateway mobile location center
  • the gateway mobile location center can still be GMLC, or the gateway mobile location center has other names. The application embodiment does not limit this.
  • the above-mentioned positioning function entity 102 may also be used for positioning service positioning request management, positioning resource allocation, obtaining position information of the terminal, and returning the position information to relevant network elements.
  • the network element or entity corresponding to the positioning function entity 102 may be a positioning server in the 5G wireless communication system.
  • the wireless communication system 200 may include the first network element 101 in FIG. 1, that is, the mobility management network element 101 (in FIG. 2, 208 is used to identify the gateway mobile location center to distinguish the gateway mobile location center from the mobile management network element), positioning
  • the functional entity 102 that is, the positioning server 102, may also include a terminal 201, an access device 202, a user plane network element 203, a session management network element 204, a data management network element 205, a network opening function network element 206, and an application function network element 207 ,
  • the external client 209 and the location management network element 210 in:
  • the terminal 201 can be a device with a wireless transceiver function, and can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, etc.). Satellite class).
  • the terminal 201 can communicate with one or more network devices of one or more communication systems, and accept network services provided by the access device 202.
  • the terminal 201 in the embodiment of the present application may be a mobile phone (or called a "cellular" phone), a computer with a mobile terminal, etc., and the terminal 201 may also be a user equipment (UE), a terminal (terminal).
  • UE user equipment
  • the terminal 201 may also be a communication chip with a communication module.
  • the access device 202 includes, but is not limited to: next-generation base stations (gnodeB, gNB), evolved node B (evolved node B, eNB), radio network controller (RNC), and node B (node B) in 5G. B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center), etc., which are not limited in the embodiment of the present application.
  • the access device 202 may also be a communication chip with a communication module.
  • the access device 202 can serve as a radio access network (RAN) base station to provide a wireless network connection to the terminal 201.
  • RAN radio access network
  • the access device 202 can As a 4G access network-the access network base station in the evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (evolved UMTS terrestrial radio access network, E-UTRAN), or access equipment 202 can be used as a 5G access network-an access network base station in 5G RAN, or the access device 202 can be used as an access network base station in a future wireless communication system.
  • UMTS evolved universal mobile telecommunications system
  • E-UTRAN evolved telecommunications system
  • 5G access network-an access network base station in 5G RAN
  • the access device 202 can be used as an access network base station in a future wireless communication system.
  • the user plane network element 203 is used for packet routing and forwarding, quality of service (QoS) processing of user plane data, and so on.
  • the network element or entity corresponding to the user plane network element 203 may be a user plane function (UPF) network element in the 5G wireless communication system.
  • UPF user plane function
  • the user plane network element 203 may still be a UPF network element, or the user plane network element 203 has other names, which is not limited in the embodiment of the present application.
  • the session management network element 204 is used for session management in the mobile network, such as session establishment, modification, and release.
  • the network element or entity corresponding to the session management network element 304 may be a session management function (SMF) network element in the 5G wireless communication system.
  • SMS session management function
  • the session management network element 204 may still be an SMF network element, or the session management network element 204 may have other names, which is not limited in the embodiment of the present application.
  • the data management network element 205 is used to process user identification, access authentication, registration, or mobility management.
  • the network element or entity corresponding to the data management network element can be a unified data management (UDM) network element in the 5G network architecture, where Nudm is a service-based interface provided by the UDM network element.
  • UDM network elements can communicate with other network functions through Nudm.
  • the data management network element 205 may still be a UDM network element, or the data management network element 205 has other names, which are not limited in the embodiment of the present application.
  • the network open function network element 206 mainly provides services that enable a third generation partnership project (3rd generation partnership project, 3GPP) network to securely provide network service capabilities to a third-party service provider application function network element 207.
  • the network opening function network element 206 can be a (network exposure function, NEF) network element.
  • NEF network exposure function
  • Nnef is a service-based interface provided by the NEF network element.
  • the NEF network element can communicate with other network functions through Nnef.
  • the network open function network element 206 may still be a NEF network element or have other names, which is not limited in the embodiment of the present application.
  • the application function network element 207 is mainly used to provide application layer information to the 3GPP network.
  • the application function network element 207 may be an application function (AF) network element.
  • Naf is a service-based interface provided by the AF network element.
  • the AF network element can communicate with other network functions through Naf.
  • the application function network element 207 may still be an AF network element or have other names, which is not limited in the embodiment of the present application.
  • the AF network element may include, for example, a service capability server (services capability server, SCS) or an application server (application server, AS).
  • the external client 209 may be a requester of the location information of the terminal 201, and it may also be referred to as an external client.
  • the location management network element 210 may be used for location request management of location services, allocation of location resources, acquisition of location information of terminal devices, and return of location information to relevant network elements.
  • the network element or entity corresponding to the location management network element 210 may be the location management function (LMF) network element in the 5G wireless communication system.
  • LMF location management function
  • Nlmf is a service-based network element provided by the AMF network element. Interface, LMF network element can communicate with other network functions through Nlmf.
  • location management network element 210 can still be LMF network element, or location management network element 210 has other names. This application implements The example does not limit this.
  • FIG. 3 is a schematic diagram of the architecture of a 5G wireless communication system to which the embodiments of this application are applicable.
  • the wireless communication system includes the foregoing AMF network elements, LMF network elements, terminals, and gNBs. , UPF network elements, SMF network elements, UDM network elements, NEF network elements, AF network elements, GMLC and external clients.
  • authentication server function authentication server function
  • AUSF authentication server function
  • NSSF network slice selection function
  • NRF Repository Function
  • PCF Policy control function
  • UDR unstructured data storage function
  • the N1 interface in Figure 3 is the reference point between the terminal and the AMF network element;
  • the N2 interface is the reference point between the gNB and AMF network elements, used for non-access stratum (NAS) messages and next-generation Application protocol (next generation application protocol, NGAP) message sending, etc.
  • N3 interface is the reference point of gNB and UPF network elements, used to transmit user plane data, etc.
  • N4 interface is the reference point between SMF and UPF, used Transmits information such as N3 connection tunnel identification information, data buffer indication information, and downlink data notification messages
  • N6 interface is the reference point between UPF network element and data network (DN), used to transmit user plane data Wait.
  • control plane network elements such as AF network elements can also interact with service-oriented interfaces.
  • the servicing interface provided by the AUSF network element externally can be Nausf; the servicing interface provided by the AMF network element externally can be Namf; the servicing interface provided by the SMF network element externally can be Nsmf; the servicing interface provided by the NSSG network element externally It can be Nnssf; the servicing interface provided by NEF network elements can be Nnef; the servicing interface provided by NRF network elements can be Nnrf; the servicing interface provided by PCF network elements can be Npcf; the service provided by UDM network elements
  • the service-oriented interface can be Nudm; the service-oriented interface provided by the AF network element to the outside can be Naf.
  • the 5G system architecture diagram in the 23501 standard which will not be repeated here.
  • the foregoing network elements or functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform).
  • the above-mentioned network elements or functions can be divided into one or more services, and further, there may be services independent of network functions.
  • an instance of the above-mentioned function, an instance of a service included in the above-mentioned function, or an instance of a service that exists independently of the network function may be referred to as a service instance.
  • Carrying can mean that a certain message is used to carry certain information or data, or it can mean that a certain message is composed of certain information.
  • the location request information in this embodiment of the application refers to information used to request a location service for a specific terminal.
  • the positioning service can be an immediate request (location immediate request, LIR) service or a location deferred request (location deferred request, LDR) service.
  • LIR location immediate request
  • LDR location deferred request
  • the mobile communication network can inform the positioning service of the terminal's location information or location-related positioning events
  • the requester is the location requester.
  • the positioning server or the position management network element can be used to manage the positioning request information for a specific terminal. Specifically, management of positioning request information can be used by the designated location server or location management network element to feed back the location information of the terminal to the location requester or indicate to the location requester that the terminal has a location request information indication according to the location request information sent by the location requester.
  • the positioning event can be used by the designated location server or location management network element to feed back the location information of the terminal to the location requester or indicate to the location requester that the terminal has a location
  • the instant request service is a "immediate request, instant response" positioning service, and its positioning request may include LIR.
  • the positioning request sends the LIR to the core network element where the terminal is located, such as the mobility management network element or the gateway mobile location center, and the LIR is forwarded by the mobility management network element or the gateway mobile location center to the positioning server or other core network elements.
  • the network element is such as a location management network element, so that the positioning server or the location management network element instantly feeds back the location information of the terminal to the positioning requester based on the LIR.
  • the location delay request service is delayed.
  • the location requester is equivalent to subscribing to the terminal, the core network element where the terminal is located, or other relevant network elements for the location report of the terminal.
  • the report can be triggered after a certain location event is met, such as , The terminal moves out or moves to a certain area, the terminal movement distance reaches a threshold distance, or meets a preset reporting period, etc.
  • the report can carry the location information of the terminal, and/or the report can be used to indicate the location that meets the above Events, such as instructing the terminal to move out or move to a certain area, etc.
  • the location information of the terminal can calculate the location information of the terminal.
  • the location management network element or the positioning server may calculate the location information of the terminal based on the location request information sent by the location requester and the measurement data reported by the terminal, and feed back the location information of the terminal to the location requester.
  • the position management network element or the positioning server may generate the above-mentioned positioning event report according to the position information.
  • the location information of the terminal may be geographic location coordinates in a certain location system (for example, the global positioning system (GPS) or Beidou satellite system).
  • the terminal in this embodiment of the application, is the object of the positioning service requested by the designated position requester.
  • the secure user plane location enabled terminal (SET) is the client of the location service, that is, the object of the location service requested by the location requester, such as an Android smartphone. That is, the terminal defined by 3GPP.
  • the network element of the core network where the terminal is located such as the LMF network element or the positioning server, can provide the positioning requester with the position information of the terminal based on the positioning request of the positioning requester, or inform the positioning requester that the terminal has satisfied the positioning event indicated by the positioning request information.
  • the positioning requester refers to a network element of the core network, such as a location management network element or a positioning server, requesting a communication device that provides positioning services for the terminal. It may be a terminal or an external device with positioning requirements. Clients, such as servers, network elements in wireless communication networks, or other carriers that have requirements for locating the location of the terminal.
  • a secure user plane location (SUPL) agent is an application that needs to obtain location information, that is, a location service client (location service client) defined by 3gpp.
  • the SUPL Agent can run in the SET or in the SUPL network. Among them, if the SUPL Agent runs in the SET, the positioning requester is the terminal. If the SUPL Agent runs in the SUPL network, the location requester is an external client with location requirements.
  • the positioning server is deployed in the MEC manner in the embodiment of the present application, and it may be an MEC platform or a server.
  • the specific deployment form of the positioning server is not limited in this application.
  • the specific deployment form may be cloud deployment, or an independent computer device or chip.
  • the data interaction between the positioning server and the terminal can be directly performed through the user plane.
  • SUPL is a positioning protocol defined by the operation administration and maintenance (OAM) organization.
  • OAM operation administration and maintenance
  • the positioning server can interact with the terminal through the user plane based on the SUPL protocol, that is, the terminal can transmit SUPL messages through the user plane, SUPL
  • the message can encapsulate the positioning request information, measurement data and other information reported by the terminal, as well as the measurement request information issued by the positioning server to the terminal.
  • first positioning request information and the second positioning request information are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • first positioning request information and the second positioning request information are only for distinguishing different positioning request information, but do not indicate the difference in priority or importance of the two positioning request information.
  • the method shown in the embodiment of the present application is not only applied to the wireless communication systems shown in 1-3, but also can be applied to other future communication systems, such as 6G communication systems, etc.
  • future communication systems such as 6G communication systems, etc.
  • the functions may remain the same. , But the name may change.
  • an MEC-based Schematic diagram of the flow of the positioning method includes the following steps:
  • the positioning request sends first positioning request information to the AMF network element.
  • the AMF network element receives the first positioning request information sent from the positioning requester.
  • the first positioning request information is used to request positioning of the terminal, and the first positioning request information carries identification information of the terminal.
  • the positioning requester may send the first positioning request information carrying the identification information of the terminal to the AMF network element.
  • the terminal’s identification information can be the terminal’s international mobile equipment identity (IMEI), the user’s permanent identity (subscription permanent identifier, SUPI), or the general public subscription identity (generic public subscription identifier, GPSI). ), or other information that can identify the terminal, which is not specifically limited in the embodiment of the present application.
  • the AMF network element determines, according to the first positioning request information, that the positioning function entity for positioning the terminal is the positioning server.
  • the first positioning request information may carry a positioning delay requirement.
  • the AMF network element After the AMF network element receives the first positioning request information sent by the positioning requester, it may determine that the positioning requester has a high requirement on the time delay according to the first positioning request information. For example, before sending the first positioning request information to the AMF network element, the positioning requester may insert a positioning delay requirement into the first positioning request information.
  • the AMF network element After the AMF network element receives the first positioning request information, it can obtain the positioning delay requirement carried in the first positioning request information, so that it can determine that the positioning requester has high requirements for the delay according to the positioning delay requirement. .
  • the AMF network element determines that the positioning delay requirement carried in the first positioning request information is less than or equal to the preset duration threshold, it determines that the positioning requester has high requirements for the delay, that is, the AMF network element determines that it needs to quickly locate the terminal. At this time, you can select the positioning server to locate the terminal.
  • the positioning delay requirement may be set by the positioning requester according to the demand, or may be the positioning delay requirement corresponding to the value-added positioning service. For example, the location requester has opened a certain location service business that requires payment.
  • the first positioning request information sent by the positioning request to the AMF network element can carry the positioning delay requirements corresponding to the value-added positioning service, and then the AMF network element can follow
  • the positioning delay requirements corresponding to the value-added positioning services are determined to be high requirements for the positioning requester.
  • the first positioning request information may carry first indication information, where the first indication information indicates a low-latency positioning service.
  • the AMF network element After the AMF network element receives the first positioning request information sent by the positioning requester, it may determine that the positioning requester has a high requirement on the time delay according to the first indication information carried in the first positioning request information.
  • the first indication information may be an indicator (indicator).
  • the first indication information is used to directly indicate a low-latency service.
  • the first indication information may also be used to indirectly indicate a low-latency service, which is not limited in the embodiment of the present application.
  • the first indication information may be the identification information of the positioning service.
  • the AMF network element may indirectly determine the first indication according to the first indication information carried in the first positioning request information.
  • the positioning service of the information identification is a low-latency service.
  • the AMF network element may store a first correspondence between at least one positioning service and identification information and a second correspondence between at least one positioning service and a delay requirement.
  • the AMF network element may determine the positioning service identified by the first indication information according to the first indication information and the first correspondence. After that, when the AMF network element determines that the latency requirement of the positioning service identified by the first indication information is high according to the positioning service identified by the first indication information and the second correspondence, it can determine that the positioning service identified by the first indication information is low. Extension of business.
  • the positioning delay requirement in the foregoing embodiment and the first indication information may be used in combination, which is not specifically limited in the embodiment of the present application.
  • the positioning requester has high requirements for time delay, which can be expressed as the low time delay required for the positioning requester to request the positioning of the terminal.
  • time delay For example, taking the preset duration threshold of 8 milliseconds as an example, when the time delay required for the positioning requester to request positioning of the terminal is 5 milliseconds, it may indicate that the positioning requester has a high requirement on the time delay.
  • the low-latency service can be expressed as the low-latency required for the positioning service that the positioning requester requests to locate the terminal.
  • the AMF network element determines the delay requirement for terminal positioning according to the positioning delay requirement or the first indication information carried in the first positioning request information, so as to meet the rapid positioning of the terminal by the positioning requester. need.
  • the AMF network element may determine that the positioning function entity for positioning the terminal is the positioning server when it is determined that the positioning requester has high requirements for time delay.
  • the AMF network element may determine the positioning function entity for positioning the terminal as the positioning server according to the first positioning request information, so that the subsequent positioning server can pass the user plane according to the second positioning request information sent by the AMF network element.
  • Position the terminal to avoid the problem of large positioning delay caused by the interaction through the transmission path of the control plane, that is, the forwarding through the AMF network element, so that the positioning server close to the terminal and the access device can be selected to locate the terminal, which can shorten the terminal
  • the transmission distance between the terminal and the positioning server can further reduce the transmission time required for data transmission between the terminal and the positioning server, thereby shortening the positioning delay of the terminal and helping to improve the user experience.
  • the AMF network element can select a positioning server for positioning the terminal from at least one positioning server.
  • the data management network element (UDM network element in FIG. 3) may pre-store the configuration information of at least one positioning server.
  • the AMF network element may determine a positioning server for positioning the terminal according to the first position information of the terminal and the configuration information of at least one positioning server.
  • the configuration information of at least one positioning server may include area information under the jurisdiction of at least one positioning server, and the area information under the jurisdiction of at least one positioning server is tracking area identity (TAI) information under the jurisdiction of at least one positioning server.
  • the first location information of is the target TAI information. In the following, in order to distinguish the target TAI information of the terminal from the geographic location information, the first location information is used to represent the target TAI information of the terminal, and the second location information is used to represent the geographic location information of the terminal.
  • the AMF network element After the AMF network element receives the first positioning request information sent by the positioning requester, it can obtain the target TAI information of the terminal from the UDM network element and obtain the UDM network according to the identification information of the terminal carried in the first positioning request information. Configuration information of at least one positioning server stored in the meta. Later, when the AMF network element determines that the configuration information of a certain positioning server in the at least one positioning server includes the target TAI information of the terminal, the AMF network element can determine that the positioning server is a positioning server for positioning the terminal.
  • the at least one positioning server may be a positioning server in the access network where the terminal is located, or may be a positioning server managed by the wireless communication system where the terminal is located, which is not specifically limited in the embodiment of the present application.
  • the AMF network element determines the positioning server for positioning the terminal from the at least one positioning server according to the target TAI information of the terminal and the configuration information of the at least one positioning server, so as to ensure that the determined positioning server is Close to the terminal and the access network equipment (gNB in Figure 3), the transmission distance between the positioning server and the terminal can be shortened, and the transmission time required for data transmission between the terminal and the positioning server can be further reduced. Shorten the positioning delay of the positioning server to the terminal.
  • the AMF network element obtains the second positioning request information according to the first positioning request information.
  • the second positioning request information carries the network address of the terminal.
  • the AMF network element may obtain the network address of the terminal according to the identification information of the terminal, and then may obtain the second positioning request information according to the first positioning request information and the network address of the terminal.
  • the second positioning request information includes the network address of the terminal.
  • the specific implementation manner for the AMF network element to obtain the second positioning request information according to the first positioning request information is not limited.
  • the AMF network element may extract the positioning delay requirement or the first indication information carried in the first positioning request information, and then insert the network address of the terminal into the first positioning request information to obtain the second positioning request information, etc.
  • the network address of the terminal may include, but is not limited to: an internet protocol (IP) address, a media access control (media access control, MAC) address (address), etc.
  • the AMF network element can obtain the network address of the terminal according to the identification information of the terminal, so that the subsequent positioning server can locate the terminal by the user facing the terminal according to the network address of the terminal, thereby shortening the gap between the positioning server and the terminal.
  • the transmission distance can further reduce the transmission time required for data transmission between the terminal and the positioning server, and further shorten the positioning delay of the positioning server to the terminal.
  • the AMF network element sends the second positioning request information to the positioning server.
  • the positioning server may receive the second positioning request information sent from the AMF network element.
  • the second positioning request information is used to trigger the positioning server to perform positioning facing the terminal through the user.
  • the AMF network element may send the second positioning request information to the positioning server through a network open function network element (such as the NEF network element in FIG. 3).
  • a network open function network element such as the NEF network element in FIG. 3
  • the positioning server sends the measurement request information to the terminal through the user according to the second positioning request information.
  • the terminal receives the measurement request information from the positioning server.
  • the measurement request information carries the network address of the terminal, which is used to instruct the terminal to report measurement data, and the measurement data is used by the positioning server to calculate the second location information of the terminal.
  • the positioning server after the positioning server receives the second positioning request information from the AMF network element, it can select an appropriate positioning calculation method, and then, according to the positioning calculation method, determine the measurement data that needs to be provided by the terminal, and pass the user orientation
  • the terminal device sends measurement request information to instruct the terminal to report the measurement data.
  • the positioning server may send the measurement request information to the terminal through the data connection corresponding to the terminal according to the second positioning request information.
  • the terminal receives the measurement request information from the positioning server through the data connection.
  • the data connection may include, but is not limited to, a packet data unit (PDU) session (session).
  • PDU packet data unit
  • the positioning server may determine that the destination address of the measurement request information is the network address of the terminal according to the network address of the terminal carried in the second positioning request information, and then may send a message to the user plane network element (e.g., The UPF network element in FIG. 3) sends the network address and measurement request information of the terminal, so that the UPF network element forwards the measurement request information to the terminal through the data connection according to the network address of the terminal.
  • the terminal receives the measurement request information from the positioning server through the data connection.
  • the transmission path of the measurement request information can be "positioning server-UPF network element-access network equipment-terminal", that is, the data connection is made by the positioning server, UPF network element, and access network equipment ( GNB in Figure 3) and terminal structure.
  • the positioning server forwards the measurement information to the terminal according to the network address information of the terminal through the UPF network element, so that the measurement information can be sent to the terminal through the user plane transmission path of the terminal, thereby avoiding the transmission path through the control plane Interaction, that is, forwarding through the AMF network element causes the problem of large positioning delay, which can further shorten the positioning delay of the terminal and help improve the user experience.
  • the data connection corresponding to the terminal can be expressed as the user plane transmission path through the terminal.
  • the UPF network element in the data connection corresponding to the terminal can be expressed as the UPF transmission path in the user plane of the terminal.
  • Network element this embodiment of the application does not specifically limit this.
  • the positioning server in the process of positioning the terminal, can interact with the terminal through the user plane transmission path of the terminal, thereby avoiding interaction through the control plane transmission path, that is, forwarding through the AMF network element
  • the transmission time required for data can further shorten the positioning delay of the terminal and help improve the user experience.
  • the MEC-based positioning method further includes the following steps S406-S409:
  • S406 The terminal performs measurement to obtain measurement data.
  • the terminal when the terminal receives the measurement request information from the positioning server, it can measure the measurement data according to the measurement request information. For example, the terminal can measure and collect (for example, measure the signal quality of the serving cell where the terminal is located and the signal quality of neighboring cells of the serving cell, etc.) according to the measurement parameters configured for the terminal on the network side (such as gNB) to obtain measurement data.
  • the measurement parameters configured for the terminal on the network side (such as gNB) to obtain measurement data.
  • the terminal sends measurement data to the positioning server.
  • the positioning server receives the measurement data from the terminal.
  • the terminal may send measurement data to the positioning server through a data connection corresponding to the terminal.
  • the terminal may send the measurement data to the UPF network element located in the data connection corresponding to the terminal, so that the UPF network element forwards the measurement data to the positioning server through the data connection according to the network address of the terminal.
  • the transmission path of the measurement data may be "terminal-gNB-UPF network element-positioning server".
  • the positioning server calculates the second position information of the terminal according to the measurement data.
  • the positioning server may calculate the second position information of the terminal according to the positioning calculation method selected in S405.
  • the positioning server sends the second position information of the terminal to the positioning requester.
  • the positioning server may feed back the position information of the terminal to the positioning requester to the central network element (GMLC network element in FIG. 3) that moves through the gateway.
  • the central network element GMLC network element in FIG. 3
  • Figure 4 is an example where the positioning requester is an external client with positioning requirements.
  • the positioning requestor is a terminal
  • the positioning server calculates the second position information of the terminal, it can feed back the second position information of the terminal to the terminal through a network open function network element (such as the NEF network element in FIG. 3).
  • the positioning server may support the positioning requirements of different positioning requesters for the terminal.
  • the terminal during the process of positioning the terminal, the terminal interacts with the positioning server through the user plane transmission path of the terminal, and it can also avoid the forwarding through the AMF network element, that is, the interaction through the control plane transmission path. Therefore, the transmission distance between the terminal and the positioning server can be shortened, and the transmission time required for data transmission between the terminal and the positioning server can be further reduced. In turn, the positioning delay of the terminal can be shortened, which helps to improve the user experience.
  • FIGS. 1 to 4 will be described in detail below in conjunction with FIG. 5 of the specific embodiment.
  • the wireless communication system shown in FIG. 1 or FIG. 2 is applied to the 5G wireless communication system shown in FIG. 3 as an example.
  • the method includes the following steps:
  • the positioning request sends first positioning request information to the AMF network element.
  • the AMF network element receives the first positioning request information sent from the positioning requester.
  • the first positioning request information is used to request positioning of the terminal, and the first positioning request information carries identification information of the terminal.
  • the AMF network element determines, according to the first positioning request information, that the positioning function entity for positioning the terminal is the positioning server.
  • the AMF network element obtains the second positioning request information according to the first positioning request information.
  • the second positioning request information carries the network address of the terminal.
  • the AMF network element sends the second positioning request information to the positioning server.
  • the positioning server may receive the second positioning request information sent from the AMF network element.
  • the second positioning request information is used to trigger the positioning server to perform positioning facing the terminal through the user.
  • the positioning server sends the measurement request information to the terminal through the user according to the second positioning request information.
  • the terminal receives the measurement request information from the positioning server.
  • the measurement request information carries the network address of the terminal, and is used to instruct the terminal to report measurement data, and the measurement data is used by the positioning server to obtain the location information of the terminal.
  • steps S501-S505 are the same as steps S401-S405 in the embodiment shown in FIG. 4, and related descriptions can refer to the embodiment shown in FIG. 4, which will not be repeated here.
  • the positioning server and the terminal in the process of positioning the terminal, can interact through the user plane transmission path of the terminal, which can avoid forwarding through the AMF network element, that is, the control plane transmission path interaction, so that the AMF network element can choose a positioning server close to the terminal and the access device to perform positioning calculations on the terminal, which can shorten the message transmission distance between the terminal and the positioning server, and further reduce the transmission time required for data transmission between the terminal and the positioning server, and then The positioning delay of the terminal can be shortened, and the user experience can be improved.
  • the AMF network element that is, the control plane transmission path interaction
  • step S503 the data connection corresponding to the terminal is not established as an example for description.
  • the AMF before the positioning server sends the measurement request information to the terminal through the data connection corresponding to the terminal, since the data connection of the terminal has not been established, before step S503, the AMF also needs to instruct the SMF network element to establish a data connection for the terminal.
  • the AMF network element can also obtain the network address of the terminal, which is allocated by the network to the terminal during the establishment of the data connection of the terminal.
  • the SMF network element may allocate a network address to the terminal during the process of establishing the data connection of the terminal, and then send the network address to the AMF network element.
  • the SMF network element is a session management network element serving the terminal.
  • the SMF network element may send the network address of the terminal to the AMF in various ways.
  • the network address of the terminal can be sent by the SMF network element to the AMF network element after the AMF network element requests the SMF network element, or it can be instructed by the AMF network element to send the SMF network element to the AMF network element, etc., this application
  • the embodiment does not specifically limit this.
  • the AMF network element may determine whether the data connection corresponding to the terminal has been successfully established.
  • the embodiment shown in FIG. 5 may further include the following steps:
  • the AMF network element sends detection information to the UDM network element.
  • the UDM network element receives the detection information from the AMF network element.
  • the detection information is used to detect whether there is a data connection corresponding to the terminal in the UDM network element.
  • the detection information may include identification information of the terminal, so that the UDM network element can detect whether a data connection corresponding to the terminal already exists according to the identification information of the terminal.
  • the UDM network element may store the record of the data connection corresponding to the terminal. After the UDM network element receives the detection information, it can detect whether the PDDU session record corresponding to the terminal has been stored according to the identification information of the terminal carried in the detection information. When the UDM network element detects that there is no record of the data connection corresponding to the terminal in the stored data connection records, it may not respond to the detection information or send a prompt message to the AMF network element to remind the AMF network element that the terminal does not currently have a corresponding Data connection. After that, the AMF network element may execute the following step S503b.
  • the AMF network element sends network trigger information to the terminal to trigger the terminal to establish a data connection between the terminal and the positioning server.
  • the network trigger information includes the information of the positioning server, and is used to trigger the terminal to send the establishment request information for establishing a data connection between the terminal and the positioning server to the SMF network element.
  • the terminal sends establishment request information to the SMF network element according to the network trigger information.
  • the establishment request information carries the data network name (data network name, DNN) of the positioning server.
  • the terminal may send the establishment request information carrying the DNN of the positioning server to the SMF network element.
  • the terminal can obtain the DNN of the positioning server from the UDM network element according to the IP address of the positioning server, and then send the DNN establishment request information carrying the positioning server to SMF Network element. That is, in this embodiment, the DNN of the positioning server received by the SMF network element is sent by the AMF network element through the terminal.
  • the terminal may obtain the DNN of the positioning server from the UDM network element according to the IP address of the positioning server when determining that the received information of the positioning server is the IP address, so as to ensure that the establishment request is sent to the SMF network element
  • the information of the positioning server carried in the information is the DNN of the positioning service, so that subsequent SMF network elements establish a data connection between the terminal and the positioning server according to the DNN of the positioning server.
  • S503d The SMF network element establishes a data connection between the terminal and the positioning server according to the establishment request information.
  • the SMF network element may obtain the identification information of the terminal, where the identification information may be carried in the establishment request information sent by the terminal, or the AMF network element may send the identification information of the terminal to the SMF network element , Etc.
  • the embodiments of this application do not specifically limit this.
  • the SMF network element may also obtain the first location information of the terminal, such as target TAI information.
  • the manner in which the SMF network element obtains the first location information of the terminal is not specifically limited.
  • the SMF may obtain the first location information of the terminal sent by the AMF network element, or the SMF network element may obtain the first location information of the terminal from the UDM network element according to the identification information of the terminal, and so on.
  • the SMF network element may, after receiving the establishment request information, select the UPF network element close to the terminal side according to the DNN of the positioning server and the terminal's first position information such as target TAI information, and establish the connection between the terminal and the positioning server.
  • Data connection between may be composed of a terminal, a gNB, a UPF network element, and a positioning server.
  • the SMF network element may allocate a network address to the terminal according to the identification information of the terminal in the process of establishing a data connection between the terminal and the positioning server.
  • the SMF network element establishes a data connection between the terminal and the positioning server, so that the terminal and the positioning server can directly exchange data through the data connection without forwarding through the AMF network element, which can shorten the terminal and positioning
  • the transmission distance between the servers can further shorten the transmission time required for data transmission between the terminal and the positioning server, and can effectively shorten the positioning delay of the terminal.
  • the SMF network element sends notification information and the network address of the terminal to the AMF network element.
  • the notification information is used to notify the SMF that a data connection between the terminal and the positioning server has been established.
  • the SMF network element may send notification information to the AMF network element to notify the AMF network element that the data connection corresponding to the terminal has been established.
  • the AMF network element can obtain the network address of the terminal through the SMF network element, so that the subsequent positioning server can interact with the terminal through the user plane according to the network address of the terminal, thereby shortening the positioning delay of the positioning server to the terminal .
  • the AMF network element can obtain the second positioning request information according to the network address of the terminal and the first positioning request information.
  • the positioning server may send measurement request information to the terminal according to the data connection corresponding to the terminal.
  • step S505 the method shown in FIG. 5 further includes the following steps S506-S509:
  • S506 The terminal performs measurement to obtain measurement data.
  • S507 The terminal sends measurement data to the positioning server.
  • the positioning server receives the measurement data from the terminal.
  • the positioning server calculates the second position information of the terminal according to the measurement data.
  • the positioning server sends the second position information of the terminal to the positioning requester.
  • steps S506-S509 are respectively the same as steps S406-S409 in the embodiment shown in FIG. 4, and related descriptions can refer to the embodiment shown in FIG. 4, which will not be repeated here.
  • the terminal and the positioning server in the process of positioning the terminal, can interact through the user plane transmission path of the terminal, and it is also possible to avoid forwarding through the AMF network element, that is, control plane transmission path interaction, thereby shortening the terminal.
  • the transmission distance between the terminal and the positioning server can further reduce the transmission time required for data transmission between the terminal and the positioning server, thereby shortening the positioning delay of the terminal and helping to improve the user experience.
  • the method includes the following steps:
  • the positioning request sends first positioning request information to the AMF network element.
  • the AMF network element receives the first positioning request information sent from the positioning requester.
  • the first positioning request information is used to request positioning of the terminal, and the first positioning request information carries identification information of the terminal.
  • the AMF network element determines, according to the first positioning request information, that the positioning function entity that positions the terminal is the positioning server.
  • the AMF network element obtains the second positioning request information according to the first positioning request information.
  • the second positioning request information carries the network address of the terminal.
  • the AMF network element sends the second positioning request information to the positioning server.
  • the positioning server may receive the second positioning request information sent from the AMF network element.
  • the second positioning request information is used to trigger the positioning server to perform positioning facing the terminal through the user.
  • the positioning server sends the measurement request information to the terminal through the user according to the second positioning request information.
  • the terminal receives the measurement request information from the positioning server.
  • the measurement request information carries the network address of the terminal, which is used to instruct the terminal to report measurement data, and the measurement data is used by the positioning server to obtain the location information of the terminal.
  • steps S601-S605 are the same as steps S401-S405 in the embodiment shown in FIG. 4, and related descriptions can refer to the embodiment shown in FIG. 4, which will not be repeated here.
  • the positioning server and the terminal in the process of positioning the terminal, can interact through the user plane transmission path of the terminal, which can avoid forwarding through the AMF network element, that is, the control plane transmission path interaction, so that the AMF network element can Choose a positioning server close to the terminal and the access device to perform positioning calculations on the terminal, thereby shortening the transmission distance between the terminal and the positioning server, and further reducing the transmission time required for data transmission between the terminal and the positioning server, and thus Shortening the positioning delay of the terminal helps to improve the user experience.
  • the AMF network element that is, the control plane transmission path interaction
  • step S603 the data connection corresponding to the terminal has been successfully established as an example for description.
  • the AMF network element obtains the network address of the terminal, The network address is allocated by the network to the terminal during the establishment of the data connection of the terminal.
  • a network address is allocated to the terminal, and then the network address is sent to the AMF network element.
  • the SMF network element is a session management network element serving the terminal.
  • the SMF network element may send the network address of the terminal to the AMF in various ways.
  • the network address of the terminal can be sent by the SMF network element to the AMF network element after the AMF network element requests the SMF network element, or it can be instructed by the AMF network element to send the SMF network element to the AMF network element, etc., this application
  • the embodiment does not specifically limit this.
  • step S603 the embodiment shown in FIG. 6 may further include the following steps:
  • the AMF network element sends the identification information of the terminal and the information of the positioning server to the SMF network element to instruct the SMF network element to establish a data connection between the terminal and the positioning server.
  • step S603a the AMF network element has determined that there is a record of the data connection corresponding to the terminal in the UDM network element.
  • FIG. 7 is a schematic diagram of the architecture of another 5G wireless communication system to which this embodiment of the application is applicable. Among them, the architectures of FIG. 7 and FIG. 3 are similar, and will not be repeated here.
  • the 5G wireless communication system can support a scenario where there are multiple PDU session anchors (PSA) for one data connection.
  • the data connection corresponding to the terminal may include PSA1 and PSA2.
  • the data connection corresponding to the terminal currently existing in the UDM network element is a data connection formed by the terminal, gNB, PSA1, and data network (DN).
  • DN data network
  • the AMF network element may send the identification information of the terminal and the information of the positioning server to the SMF network element.
  • the information of the positioning server may be the IP address of the positioning server or the DNN of the positioning server.
  • the AMF network element can access the network storage function network element (NRF network element in FIG. 7) to obtain the DNN of the positioning server. For example, after determining the IP address of the positioning server according to the configuration information of the positioning server, the AMF network element sends the IP address of the positioning server to the NRF network element.
  • the NRF network element may determine the DNN of the positioning server according to the received IP address of the positioning server, and send the DNN of the positioning server to the AMF network element.
  • the AMF network element may obtain the pre-stored relationship between the DNN and the IP address of at least one positioning server. After the AMF network element determines the IP address of the positioning server according to the configuration information of the positioning server, the DNN of the positioning server can be determined according to the corresponding relationship.
  • the AM F network element sends the IP address of the positioning server to the SMF network element. After that, the SMF network element converts the IP address of the positioning server into the corresponding DNN, etc., which is not limited in the embodiment of the present application.
  • the SMF network element inserts the address of the uplink classifier (ULCL) in the access network where the terminal is located and the address of the PSA into the current data connection corresponding to the terminal according to the identification information of the terminal and the information of the positioning server. Establish a data connection between the terminal and the positioning server.
  • ULCL uplink classifier
  • the SMF network element can choose to insert the terminal's current data connection corresponding to the terminal in the access network.
  • the UL CL address and the PSA address establish a data connection between the terminal and the positioning server.
  • the SMF network element can select UL CL and PAS2 close to the terminal and/or gNB according to the DNN of the positioning server and the target TAI information of the terminal, and establish a data connection from the terminal to the positioning server , That is, the data connection between the terminal and the positioning server is a data connection composed of the terminal, gNB, PSA2 and the positioning server.
  • UL CL can play the effect of switching data connections.
  • the SMF network element inserts the UL CL address and the PSA address in the access network where the terminal is located into the current data connection corresponding to the terminal to establish a data connection between the terminal and the positioning server, thereby You can choose the UL CL and PSA that are close to the terminal side and the positioning server, so that the terminal and the positioning server can directly exchange data through the newly-built data connection without forwarding through the AMF network element, which can shorten the transmission distance between the terminal and the positioning server , Which can further reduce the transmission time required for data transmission between the terminal and the positioning server, and thus can effectively shorten the positioning delay of the terminal.
  • the SMF network element sends notification information and the network address of the terminal to the AMF network element.
  • the notification information is used to notify the SMF that a data connection between the terminal and the positioning server has been established.
  • the SMF network element may send notification information to the AMF network element to notify the AMF network element that the data connection corresponding to the terminal has been established.
  • the AMF network element can obtain the second positioning request information according to the network address of the terminal and the first positioning request information.
  • the positioning server may send measurement request information to the terminal according to the data connection between the terminal and the positioning server.
  • step S605 the method shown in FIG. 6 further includes the following steps S606-S609:
  • S606 The terminal performs measurement to obtain measurement data.
  • the terminal sends measurement data to the positioning server.
  • the positioning server receives the measurement data from the terminal.
  • the positioning server calculates the position information of the terminal according to the measurement data.
  • the positioning server sends the second position information of the terminal to the positioning requester.
  • steps S606-S609 are respectively the same as steps S406-S409 in the embodiment shown in FIG. 4, and related descriptions can refer to the embodiment shown in FIG. 4, which will not be repeated here.
  • the terminal and the positioning server in the process of positioning the terminal, can interact through the user plane transmission path of the terminal, and it is also possible to avoid forwarding through the AMF network element, that is, control plane transmission path interaction, thereby shortening the terminal.
  • the transmission distance between the terminal and the positioning server can further reduce the transmission time required for data transmission between the terminal and the positioning server, thereby shortening the positioning delay of the terminal and helping to improve the user experience.
  • the AMF network element determines the positioning function entity for positioning the terminal as the positioning server according to the first positioning request information as an example.
  • the AMF network element may also determine that the positioning function entity for positioning the terminal is the LMF network element according to the first positioning request information. For example, when the AMF network element determines that the positioning delay requirement carried in the first positioning request information is greater than the preset duration threshold, or determines that the first positioning request information does not carry the first indication information, or determines that the first positioning request information carries The second indication information, when the second indication information is used to indicate high-latency positioning services, the AMF network element determines that fast positioning calculations are not required for the terminal.
  • the positioning function entity on the core network side can be selected, such as the LMF network element for the terminal Positioning.
  • the specific process of positioning the terminal by the LMF network element may adopt the existing positioning process, which will not be repeated in the embodiment of the present application.
  • the AMF network element can select different positioning function entities to locate the terminal according to the different requirements of the positioning requester for the positioning delay, so as to meet the requirements of the positioning requester for different positioning delays.
  • each network element and positioning server may perform some or all of the steps in the embodiments of the present application. These steps are only examples, and the embodiments of the present application may also perform other steps or variations of various steps. In addition, each step may be executed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all the steps in the embodiment of the present application.
  • the aforementioned first network element, positioning server or terminal includes hardware structures and/or software modules corresponding to the respective functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of this application can divide the first network element, positioning server or terminal into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one.
  • Processing module can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 8 shows a schematic structural diagram of a first network element applicable in an embodiment of the present application.
  • the first network element 800 may include: a receiving unit 801, a processing unit 802, and a sending unit 803.
  • the processing unit 802 is used to control and manage the actions of the first network element 800.
  • the processing unit 802 is used to support the first network element 800 to perform the process S402 in FIG. 4 to FIG. Other processes of the described technology.
  • the sending unit 803 and the receiving unit 801 are used to support communication between the first network element 800 and other network entities, for example, communication with the positioning server and/or terminal shown in FIG. 4 to FIG. 6.
  • the first network element 800 may further include a storage unit 804 for storing program codes and/or data of the first network element 800. Specifically, you can refer to the following description:
  • the receiving unit 801 is configured to receive first positioning request information sent by a positioning requester, where the first positioning request information is used to request positioning of a terminal, and the first positioning request information carries identification information of the terminal;
  • the processing unit 802 is configured to determine a positioning function entity for positioning the terminal according to the first positioning request information, where the positioning function entity is a positioning server; and obtain second positioning request information according to the first positioning request information ;
  • the sending unit 803 is configured to send the second positioning request information to the positioning server, so as to trigger the positioning server to locate the terminal through the user.
  • the processing unit 802 may be further configured to: according to the positioning delay requirement or the first indication information carried in the first positioning request information, determine that the positioning requester has a high latency Require.
  • the processing unit 802 when it determines a positioning server for positioning the terminal according to the first positioning request information, it may be specifically configured to: obtain the terminal identification information according to the identification information of the terminal.
  • This embodiment of the application does not limit the specific content of the first location information of the terminal and the area information managed by the at least one positioning server.
  • the first location information of the terminal is target tracking area identification TAI information
  • the area information managed by the at least one positioning server is the tracking area identification TAI information managed by the at least one positioning server.
  • the receiving unit 801 may also be used to: obtain the network address of the terminal according to the identification information of the terminal; and the processing unit 802 to obtain the second positioning according to the first positioning request information.
  • the processing unit 802 may be specifically used to obtain the second positioning request information according to the first positioning request information and the network address of the terminal, where the second positioning request information includes the network address of the terminal.
  • the sending unit 803 may also be used to: send the identification information of the terminal and the information of the positioning server to the session management function SMF network element; the receiving unit 801 according to the terminal When acquiring the network address of the terminal, the identification information of is specifically used to: acquire the network address of the terminal sent by the SMF network element.
  • the sending unit 803 may also be used to send information of the positioning server to the terminal, and trigger the terminal to establish a data connection between the terminal and the positioning server;
  • the receiving unit 801 obtains the network address of the terminal according to the identification information of the terminal, it may be specifically configured to: obtain the network address of the terminal sent by the SMF network element, where the network address is the network address of the Assigned to the terminal during the establishment process.
  • the sending unit 803 when the sending unit 803 sends the second positioning request information to the positioning server, it may be specifically configured to: send the second positioning request information through a network open function NEF network element, Sent to the positioning server.
  • the processing unit 802 determines that the positioning requester has high requirements for the delay according to the positioning delay requirement carried in the first positioning request information, it may be specifically used to: When the positioning delay requirement is less than or equal to the preset duration threshold, it is determined that the positioning requester has a high requirement for the delay.
  • the processing unit 802 when the processing unit 802 determines that the positioning requester has a high requirement on the time delay according to the first indication information carried in the first positioning request information, it may be specifically used for:
  • the first indication information indicates a low-latency positioning service, and it is determined according to the first indication information that the positioning requester has a high-delay requirement.
  • the embodiment of the present application does not limit the specific content of the information of the positioning server here.
  • the information of the positioning server may be a data network name DNN corresponding to the positioning server or an Internet Protocol IP address.
  • the positioning requester may be the terminal or an external client with positioning requirements.
  • each module in the first network element 800 is used to implement the corresponding procedures of the MEC-based positioning method shown in FIG. 4 to FIG.
  • FIG. 9 shows a schematic structural diagram of another first network element applicable in an embodiment of the present application.
  • the first network element 900 may include at least one processor 901 and a memory 902.
  • the memory 902 stores one or more computer programs, for example, stores one or more computer programs necessary for the first network element 900.
  • the processor 901 is configured to support the first network element 900 to implement the above-mentioned MEC-based positioning method.
  • the The first network element 900 may implement any one of the embodiments of the MEC-based positioning method shown in FIG. 4 to FIG. 6, and/or be used to implement other embodiments described herein.
  • an embodiment of the present application also provides a first network element, and the first network element includes a method embodiment for executing the above MEC-based positioning method, or any one of the method embodiments Modules/units of possible implementations. These modules/units can be realized by hardware, or by hardware executing corresponding software.
  • FIG. 10 shows a schematic structural diagram of a terminal applicable in an embodiment of the present application.
  • the terminal 1000 may include: a receiving unit 1001 and a sending unit 1002.
  • the sending unit 1002 and the receiving unit 1001 are used to support communication between the terminal 1000 and other network entities, such as the communication between the first network element and/or the positioning server shown in FIG. 4 to FIG. 6.
  • the terminal 1000 further includes a processing unit 1004, which is used to control and manage the actions of the terminal 1000.
  • the processing unit 1004 is used to support the terminal 1000 to perform the process S406 in FIGS. 4-6, and/or used in this document. Other processes of the described technique.
  • the terminal 1000 may further include a storage unit 1003 for storing program codes and/or data of the terminal 1000. Specifically, you can refer to the following description:
  • the receiving unit 1001 is configured to receive measurement request information sent by a positioning server through a data connection between the terminal 1000 and the positioning server, where the measurement request information carries the network address of the terminal 1000;
  • the sending unit 1002 is configured to report the measurement data obtained by the measurement to the positioning server through the data connection, so that the positioning server calculates the second position information of the terminal 1000 according to the measurement data.
  • the receiving unit 1001 before the receiving unit 1001 receives the measurement request information sent by the positioning server through the data connection between the terminal 1000 and the positioning server, it may also be used to: receive the measurement request information sent by the first network element.
  • Network trigger information where the network trigger information includes information about the positioning server; the sending unit 1002 may be further configured to: send to the SMF network element according to the network trigger information to establish the connection between the terminal 1000 and the positioning server Request information for establishing a data connection between the two to establish the data connection.
  • each module in the terminal 1000 is used to implement the corresponding procedures of the MEC-based positioning method shown in FIG. 4 to FIG. 6, and are not repeated here for brevity.
  • FIG. 11 shows a schematic structural diagram of another terminal applicable in the embodiment of the present application.
  • the terminal 1100 may include at least one processor 1101 and a memory 1102; the memory 1102 stores one or more computer programs, for example, is used to store one or more computer programs necessary for the terminal 1100.
  • the processor 1101 is configured to support the terminal 1100 to implement the above-mentioned MEC-based positioning method.
  • the terminal 1100 can Any one of the embodiments of the MEC-based positioning method shown in FIGS. 4 to 6 may be implemented, and/or used to implement other embodiments described herein.
  • an embodiment of the present application also provides a terminal.
  • the terminal includes a method embodiment for executing the above MEC-based positioning method, or a module for any possible implementation of the method embodiment /unit.
  • These modules/units can be realized by hardware, or by hardware executing corresponding software.
  • FIG. 12 shows a schematic structural diagram of a positioning server applicable in an embodiment of the present application.
  • the positioning server 1200 may include: a receiving unit 1201, a sending unit 1202, and a processing unit 1203.
  • the processing unit 1203 is used to control and manage the actions of the positioning server 1200.
  • the processing unit 1203 is used to support the positioning server 1200 to execute the process S408 in FIGS. 4-6, and/or used in this document.
  • the sending unit 1202 and the receiving unit 1201 are used to support the communication between the positioning server 1200 and other network entities, for example, the communication with the first network element and/or the terminal as shown in 4-6.
  • the positioning server 1200 may further include a storage unit 1204 for storing program codes and/or data of the positioning server 1200. Specifically, you can refer to the following description:
  • the receiving unit 1201 is configured to receive second positioning request information sent by a first network element, where the second positioning request information carries the network address of the terminal;
  • the sending unit 1202 is configured to send measurement request information to the terminal through the data connection between the terminal and the positioning server 1200 according to the network address of the terminal carried in the second positioning request information.
  • the measurement request information is used to request the terminal to report measurement data;
  • the receiving unit 1201 is further configured to receive measurement data reported by the terminal through the data connection;
  • the processing unit 1203 is configured to calculate second location information of the terminal according to the measurement data.
  • the sending unit 1202 sends measurements to the terminal through the data connection between the terminal and the positioning server 1200 according to the network address of the terminal carried in the positioning request information.
  • requesting information it can be specifically used to: send the network address of the terminal and the measurement request information to the user plane function UPF network element, so that the UPF can connect the network address of the terminal through the data connection according to the network address of the terminal.
  • the measurement request information is forwarded to the terminal.
  • the sending unit 1202 may be further configured to: if the positioning requester is the terminal, feed back the second location information to the terminal through a network open function NEF network element; or, If the positioning requester is an external client with positioning requirements, the second location information is fed back to the external client through the service capability opening function GMLC network element.
  • each module in the positioning server 1200 is used to implement the corresponding procedures of the MEC-based positioning method shown in FIG. 4 to FIG. 6, and will not be repeated here for brevity.
  • FIG. 13 shows a schematic structural diagram of another positioning server applicable in an embodiment of the present application.
  • the positioning server 1300 may include at least one processor 1301 and a memory 1302.
  • the memory 1302 stores one or more computer programs, for example, is used to store one or more computer programs necessary for the positioning server 1300.
  • the processor 1301 is configured to support the positioning server 1300 to implement the above-mentioned MEC-based positioning method.
  • the positioning server The 1300 may implement any one of the embodiments of the MEC-based positioning method shown in FIG. 4 to FIG. 6, and/or be used to implement other embodiments described herein.
  • an embodiment of the present application also provides a positioning server.
  • the positioning server includes a method embodiment that executes the above-mentioned MEC-based positioning method and any one of the possible implementation manners of the method embodiment.
  • Module/unit These modules/units can be realized by hardware, or by hardware executing corresponding software.
  • the embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored.
  • the computer program When the computer program is run on a computer, the computer executes the above-mentioned MEC-based positioning method. Any one of the method embodiments and any possible implementation of the method embodiments, such as performing any step of the embodiment of the MEC-based positioning method shown in Figure 4 to Figure 6, and/or performing other techniques described herein process.
  • the embodiment of the present application also provides a program product, which when the program product runs on a computer, causes the computer to execute the method embodiment and method embodiment of the above-mentioned MEC-based positioning method Any one of the possible implementation manners, such as executing any step of the embodiment of the MEC-based positioning method shown in FIGS. 4-6, and/or executing other processes of the technology described herein.
  • the embodiment of the present application also provides a chip, which can be coupled with the memory in the first network element, terminal or positioning server, and is used to call the computer program stored in the memory and execute the above Any possible implementation of the method embodiment of the MEC-based positioning method and the method embodiment, for example, execute any step of the embodiment of the MEC-based positioning method shown in FIG. 4 to FIG. 6, and/or execute the method described herein Other processes of the described technology.
  • processor or processing unit in the embodiments of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the method embodiment of the above-mentioned MEC-based positioning method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose central processing unit (central processing unit, CPU), general-purpose processor, digital signal processing (digital signal processing, DSP), application specific integrated circuits (ASIC), field programmable gate array Field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof; it can also be a combination that implements computing functions, such as a combination of one or more microprocessors, DSP and micro-processing The combination of the device and so on.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory or storage unit in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application specific integrated circuits (ASICs), and field programmable gate arrays. , FPGA) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, or any combination of the above designs to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor.
  • the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. accomplish.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM, flash memory, ROM, EPROM, EEPROM, register, hard disk, removable disk, CD-ROM or any other storage medium in the field.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium may be set in an ASIC, and the ASIC may be set in a communication device (such as a terminal, a positioning server, a first network element, etc.), for example, may be set in different components in the communication device.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer programs or instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer program or instruction may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
  • 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 integrating one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a DVD; and it may also be a semiconductor medium, such as a solid state disk (SSD).
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请实施例提供基于MEC的定位方法、设备及无线通信系统，可以缩短终端的定位时延。该方法包括：第一网元接收定位请求方发送的第一定位请求信息，第一定位请求信息用于请求对终端进行定位，第一定位请求信息中携带所述终端的标识信息；第一网元根据第一定位请求信息，确定对终端进行定位的定位功能实体，定位功能实体为定位服务器；第一网元根据所述第一定位请求信息获得第二定位请求信息，将第二定位请求信息发送给定位服务器。定位服务器接收到第二定位请求信息后，通过用户面向终端发送测量请求信息，请求终端上报测量数据。之后，定位服务器根据终端通过用户面上报的测量数据对终端进行定位。

Description

基于MEC的定位方法、设备及无线通信系统 技术领域
本申请涉及移动通信网络技术领域，尤其涉及基于移动边缘计算(mobile edge computing，MEC)的定位方法、设备及无线通信系统。
背景技术
目前5G和4G演进型分组核心网(evolved packet core network，EPC)都支持针对于特定终端(user equipment，UE)的定位开放业务服务。即核心网可以通过网络开放功能(network exposure function，NEF)网元、业务能力开放功能(service capability exposure function，SCEF)网元以及网管移动定位中心(gateway mobile location center，GMLC)网元向外部客户端(external client)或应用功能(application function，AF)提供对特定的终端的定位服务。
在现有定位流程中，当终端与核心网中选定的位置管理功能(location management function，LMF)网元即定位功能实体进行数据交互时，例如交互测量数据(measurement data)等时，所有的上下行数据都是经过控制面信道进行转发的。比如，LMF网元向终端下发测量请求信息(用于请求终端上报测量数据)，以及终端向LMF网元上报测量数据的过程中，测量请求信息和测量数据均需要由接入和移动管理功能(access and mobility management function，AMF)网元进行转发。然而，由于AMF网元部署在高位的核心网内(例如核心网的中部)，因此，当终端和LMF网元之间的数据交互通过AMF网元进行转发时，会导致终端与LMF网元之间的数据传输对应的传输时长较长，从而增加了终端的定位时延。
发明内容
本申请实施例提供基于MEC的定位方法、设备及无线通信系统，用于缩短终端的定位时延。
第一方面，本申请提供一种基于移动边缘计算MEC的定位方法，该方法包括：第一网元接收定位请求方发送的第一定位请求信息，所述第一定位请求信息用于请求对终端进行定位，所述第一定位请求信息中携带所述终端的标识信息；所述第一网元根据所述第一定位请求信息，确定对所述终端进行定位的定位功能实体，所述定位功能实体为定位服务器；所述第一网元根据所述第一定位请求信息获得第二定位请求信息，将所述第二定位请求信息发送给所述定位服务器，以触发所述定位服务器通过用户面对所述终端进行定位。
采用上述设计，在对终端进行定位的过程中，可以通过根据第一定位请求信息，确定对终端进行定位的定位功能实体为定位服务器，便于后续定位服务器根据第一网元发送的第二定位请求信息通过用户面对终端进行定位，避免通过控制面传输路径进行交互即通过第一网元进行转发导致定位时延较大的问题，从而可以选择靠近终端和接入设备的定位服务器来对终端进行定位，可以缩短终端与定位服务器之间的传输距离，从而减少终端与定位服务器之间传输数据所需的传输时长，进一步的可以缩短终端的定位时延，有助于提升用户的体验。
在一种可能的设计中，所述方法还包括：所述第一网元根据所述第一定位请求信息中携带的定位时延要求或者第一指示信息，确定所述定位请求方对时延为高要求。
采用上述设计，第一网元可以通过根据第一定位请求信息中携带的定位时延要求或者第一指示信息，确定对终端定位的时延要求，从而可以满足定位请求方对终端的快速定位需求。
在一种可能的设计中，所述第一网元根据所述第一定位请求信息，确定对所述终端进行定位的定位服务器，包括：所述第一网元根据所述终端的标识信息，获取所述终端的第一位置信息，以及获取至少一个定位服务器的配置信息，所述至少一个定位服务器的配置信息包括所述至少一个定位服务器管辖的区域信息；所述第一网元根据所述终端的第一位置信息以及所述至少一个定位服务器的配置信息，确定对所述终端进行定位的定位服务器。
采用上述设计，第一网元可以通过根据终端的第一位置信息和至少一个定位服务器的配置信息，从至少一个定位服务器中确定出对终端进行定位的定位服务器，可以确保确定出的定位服务器是靠近终端和接入网设备的，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
在一种可能的设计中，所述终端的第一位置信息为目标跟踪区标识TAI信息；所述至少一个定位服务器管辖的区域信息为所述至少一个定位服务器管辖的跟踪区标识TAI信息。
在一种可能的设计中，所述第一网元根据所述第一定位请求信息获得第二定位请求信息，包括：所述第一网元根据所述终端的标识信息获取所述终端的网络地址；所述第一网元根据所述第一定位请求信息和所述终端的网络地址获得所述第二定位请求信息，其中，所述第二定位请求信息包括所述终端的网络地址。
采用上述设计，第一网元可以通过根据终端的标识信息获取终端的网络地址，便于后续定位服务器根据终端的网络地址通过用户面对终端进行定位，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
在一种可能的设计中，所述第一网元根据所述终端的标识信息获取所述终端的网络地址，包括：所述第一网元将所述终端的标识信息和所述定位服务器的信息发送给会话管理功能SMF网元；所述第一网元获取所述SMF网元发送的所述终端的网络地址。
采用上述设计，第一网元可以在终端对应的数据连接已成功建立时，通过SMF网元获取终端的网络地址，便于后续定位服务器根据终端的网络地址通过用户面对终端进行定位，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
在一种可能的设计中，所述第一网元根据所述终端的标识信息获取所述终端的网络地址，包括：所述第一网元将所述定位服务器的信息发送给所述终端，触发所述终端建立所述终端到所述定位服务器之间的数据连接；所述第一网元获取SMF网元发送的所述终端的网络地址，所述网络地址为网络在所述数据连接建立过程中为所述终端分配的。
采用上述设计，第一网元可以在终端对应的数据连接未建立时，通过触发终端建立终端到定位服务器之间的数据连接，以获取网络在该数据连接建立过程中为终端分配的网络地址，便于后续定位服务器根据终端的网络地址通过用户面对终端进行定位，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据 所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
在一种可能的设计中，所述第一网元将所述第二定位请求信息发送给所述定位服务器，包括：所述第一网元通过网络开放功能NEF网元将所述第二定位请求信息，发送给所述定位服务器。
在一种可能的设计中，所述第一网元根据所述第一定位请求信息中携带的定位时延要求，确定所述定位请求方对时延为高要求，包括：所述第一网元确定所述定位时延要求小于或者等于预设时长阈值时，确定所述定位请求方对时延为高要求。其中，定位请求方对时延为高要求，表示为定位请求方请求对终端进行定位所需的时延低。
采用上述设计，第一网元通过在确定根据第一定位请求信息中携带的定位时延要求小于或者等于预设时长阈值时，确定对终端定位的时延要求，从而可以满足定位请求方对终端的快速定位需求。
在一种可能的设计中，所述第一网元根据所述第一定位请求信息中携带的第一指示信息，确定所述定位请求方对时延为高要求，包括：所述第一指示信息指示低时延定位业务，所述第一网元根据所述第一指示信息确定所述定位请求方对时延为高要求。其中，低时延业务表示为定位请求方请求对终端进行定位的定位业务所需的时延低。
采用上述设计，第一网元通过根据第一定位请求信息中携带的指示低时延定位业务的第一指示信息，确定对终端定位的时延要求，从而可以满足定位请求方对终端的快速定位需求。
在一种可能的设计中，所述定位服务器的信息为所述定位服务器对应的数据网络名称DNN或者互联网协议IP地址。
在一种可能的设计中，所述定位请求方为所述终端或者有定位需求的外部客户端。
采用上述设计，第一网元可以支持不同的定位请求方对终端的定位需求。
第二方面，本申请还提供一种基于MEC的定位方法，该方法包括：终端接收定位服务器通过所述终端到所述定位服务器之间的数据连接发送的测量请求信息，所述测量请求信息携带有所述终端的网络地址；所述终端将测量得到的测量数据通过所述数据连接上报给所述定位服务器，以使所述定位服务器根据所述测量数据计算所述终端的第二位置信息。
采用上述设计，在对终端进行定位的过程中，终端在与定位服务器交互时，可以通过终端的用户面传输路径进行，从而可以避免通过控制面传输路径进行交互即通过第一网元进行转发导致定位时延较大的问题，进一步的可以缩短终端与定位服务器之间的传输距离，可以达到减少终端与定位服务器之间传输数据所需的传输时长的目的，进而可以缩短终端的定位时延，有助于提升用户的体验。
在一种可能的设计中，终端接收定位服务器通过所述终端到所述定位服务器之间的数据连接发送的测量请求信息之前，还包括：所述终端接收第一网元发送的网络触发信息，所述网络触发信息包括所述定位服务器的信息；所述终端根据所述网络触发信息向SMF网元发送建立所述终端到所述定位服务器之间的数据连接的建立请求信息，以建立所述数据连接。
采用上述设计，终端可以在终端对应的数据连接未建立时，通过向SMF网元发送建立终端到定位服务器之间的数据连接的建立请求信息，以触发SMF网元创建终端对应的数据连接，便于后续定位服务器与终端通过该数据连接进行交互，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输 时长，进而可以缩短定位服务器对终端的定位时延。
第三方面，本申请还提供一种基于MEC的定位方法，该方法包括：定位服务器接收第一网元发送的第二定位请求信息，所述第二定位请求信息携带有所述终端的网络地址；所述定位服务器根据所述第二定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器之间的数据连接向所述终端发送测量请求信息，所述测量请求信息用于请求所述终端上报测量数据；所述定位服务器接收所述终端通过所述数据连接上报的测量数据，根据所述测量数据计算所述终端的第二位置信息。
采用上述设计，在对终端进行定位的过程中，定位服务器在与终端交互时，可以通过终端的用户面传输路径进行，从而可以避免通过控制面传输路径进行交互即通过第一网元进行转发导致定位时延较大的问题，进一步的可以缩短终端与定位服务器之间的传输距离，可以达到减少终端与定位服务器之间传输数据所需的传输时长的目的，进而可以缩短终端的定位时延，有助于提升用户的体验。
在一种可能的设计中，所述定位服务器根据所述定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器之间的数据连接向所述终端发送测量请求信息，包括：所述定位服务器向用户面功能UPF网元发送所述终端的网络地址和所述测量请求信息，以使所述UPF根据所述终端的网络地址，通过所述数据连接将所述测量请求信息转发给所述终端。
采用上述设计，定位服务器通过UPF网元根据终端的网络地址信息将测量信息转发给终端，从而可以通过终端的用户面传输路径将该测量信息发送给终端，进而可以避免通过控制面传输路径进行交互即通过AMF网元进行转发导致定位时延较大的问题，进一步的可以缩短终端的定位时延，有助于提升用户的体验。
在一种可能的设计中，所述方法还包括：若定位请求方为所述终端，则所述定位服务器通过网络开放功能NEF网元将所述第二位置信息反馈给所述终端；或者，若定位请求方为有定位需求的外部客户端，则所述定位服务器通过业务能力开放功能GMLC网元将所述第二位置信息反馈给所述外部客户端。
采用上述设计，定位服务器可以支持不同的定位请求方对终端的定位需求。
第四方面，本申请还提供一种第一网元，所述第一网元具有实现上述第一方面或者第一方面的任一种可能的设计中方法的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块，比如包括接收单元、处理单元和发送单元。
在一个可能的设计中，所述第一网元也可以是芯片或者集成电路。
在一个可能的设计中，所述第一网元可以包括存储器和处理器，存储器用于存储所述处理器执行的程序，当所述程序被所述处理器执行时，所述第一网元可以执行上述第一方面或者第一方面的任一种可能的设计中所述的方法。
第五方面，本申请还提供一种第一网元，包括：至少一个处理器和存储器；所述存储器存储一个或多个计算机程序；当所述存储器存储的一个或多个计算机程序被所述至少一个处理器执行时，使得所述第一网元执行上述第一方面或上述第一方面的任意一种可能的设计的方法。
第六方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质包括计算机程序，当计算机程序在计算机上运行时，使得所述计算机执行上述第一方面或上述第 一方面的任意一种可能的设计的方法。
第七方面，本申请还提供一种程序产品，当所述程序产品在计算机上运行时，使得所述计算机执行上述第一方面或上述第一方面的任意一种可能的设计的方法。
第八方面，本申请还提供一种芯片，所述芯片可以与第一网元中的存储器耦合，用于调用存储器中存储的计算机程序并执行上述第一方面及其任意一种可能设计的方法。
上述第四方面至第八方面及其可能的设计中的有益效果可以参考上述对第一方面及其任意一种可能的设计中所述方法的有益效果的描述。
第九方面，本申请还提供一种终端，所述终端具有实现上述第二方面或者第二方面的任一种可能的设计中方法的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块，比如包括接收单元和发送单元。
在一个可能的设计中，所述终端也可以是芯片或者集成电路。
在一个可能的设计中，所述终端可以包括存储器和处理器，存储器用于存储所述处理器执行的程序，当所述程序被所述处理器执行时，所述终端可以执行上述第二方面或者第二方面的任一种可能的设计中所述的方法。
第十方面，本申请还提供一种终端，包括：至少一个处理器和存储器；所述存储器存储一个或多个计算机程序；当所述存储器存储的一个或多个计算机程序被所述至少一个处理器执行时，使得所述终端执行上述第二方面或上述第二方面的任意一种可能的设计的方法。
第十一方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质包括计算机程序，当计算机程序在计算机上运行时，使得所述计算机执行上述第二方面或上述第二方面的任意一种可能的设计的方法。
第十二方面，本申请还提供一种程序产品，当所述程序产品在计算机上运行时，使得所述计算机执行上述第二方面或上述第二方面的任意一种可能的设计的方法。
第十三方面，本申请还提供一种芯片，所述芯片可以与终端中的存储器耦合，用于调用存储器中存储的计算机程序并执行上述第二方面及其任意一种可能设计的方法。
上述第九方面至第十三方面及其可能的设计中的有益效果可以参考上述对第二方面及其任意一种可能的设计中所述方法的有益效果的描述。
第十四方面，本申请还提供一种定位服务器，所述定位服务器具有实现上述第三方面或者第三方面的任一种可能的设计中方法的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块，比如包括接收单元、处理单元和发送单元。
在一个可能的设计中，所述定位服务器也可以是芯片或者集成电路。
在一个可能的设计中，所述定位服务器可以包括存储器和处理器，存储器用于存储所述处理器执行的程序，当所述程序被所述处理器执行时，所述定位服务器可以执行上述第三方面或者第三方面的任一种可能的设计中所述的方法。
第十五方面，本申请还提供一种定位服务器，包括：至少一个处理器和存储器；所述存储器存储一个或多个计算机程序；当所述存储器存储的一个或多个计算机程序被所述至少一个处理器执行时，使得所述定位服务器执行上述第三方面或上述第三方面的任意一种可能的设计的方法。
第十六方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质包括计算机程序，当计算机程序在计算机上运行时，使得所述计算机执行上述第三方面或上述第三方面的任意一种可能的设计的方法。
第十七方面，本申请还提供一种程序产品，当所述程序产品在计算机上运行时，使得所述计算机执行上述第三方面或上述第三方面的任意一种可能的设计的方法。
第十八方面，本申请还提供一种芯片，所述芯片可以与定位服务器中的存储器耦合，用于调用存储器中存储的计算机程序并执行上述第三方面及其任意一种可能设计的方法。
上述第十四方面至第十八方面及其可能的设计中的有益效果可以参考上述对第三方面及其任意一种可能的设计中所述方法的有益效果的描述。
第十九方面，本申请还提供一种无线通信系统，所述无线通信系统包括第一网元和定位服务器。所述第一网元用于执行上述第一方面中，或者本申请实施例提供的方案中由第一网元执行的步骤；所述定位服务器用于执行上述第三方面中，或者本申请实施例提供的方案中由所述定位服务器执行的步骤。
在一种可能的设计中，所述无线通信系统还可以包括终端，所述终端用于执行上述第二方面中，或者本申请实施例提供的方案中由所述终端执行的步骤。
在一种可能的设计中，所述无线通信系统还可以包括本申请实施例提供的方案中与所述第一网元、所述定位服务器或所述终端进行交互的其他设备，例如会话管理网元、接入设备等，本申请实施例对此不作具体限定。
附图说明
图1为本申请实施例适用的一种无线通信系统的架构示意图；
图2为本申请实施例适用的另一种无线通信系统的架构示意图；
图3为本申请实施例适用的一种5G无线通信系统的架构示意图；
图4为本申请实施例提供的一种基于MEC的定位方法的流程示意图；
图5为本申请实施例提供的另一种基于MEC的定位方法的流程示意图；
图6为本申请实施例提供的又一种基于MEC的定位方法的流程示意图；
图7为本申请实施例适用的另一种5G无线通信系统的架构示意图；
图8为本申请实施例适用的一种第一网元的结构示意图；
图9为本申请实施例适用的另一种第一网元的结构示意图；
图10为本申请实施例适用的一种终端的结构示意图；
图11为本申请实施例适用的另一种终端的结构示意图；
图12为本申请实施例适用的一种定位服务器的结构示意图；
图13为本申请实施例适用的另一种定位服务器的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行详尽描述。
如图1所示，为本申请实施例适用的一种无线通信系统的架构示意图。其中，无线通信系统100可包括第一网元101以及定位功能实体102。
应理解，本申请实施例提供的无线通信系统100，即可适用于低频场景(sub 6G)，也适用于高频场景(above6G)。本申请实施例提供的无线通信系统100的应用场景包括但不限于全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)系统或新无线(new radio，NR)通信系统等。
应理解，本申请实施例中，第一网元101和定位功能实体102之间可以直接通信，也可以通过其他设备的转发进行通信；本申请实施例对此不做具体限定。其中：
第一网元101，用于接收定位请求方发送的第一定位请求信息，该第一定位请求信息用于请求对终端进行定位，其中，第一定位请求信息中携带终端的标识信息。
第一网元101，还用于根据第一定位请求信息，确定对终端进行定位的定位功能实体102，定位功能实体102为定位服务器；
第一网元101，还用于根据第一定位请求消息获得第二定位请求信息，将第二定位请求信息发送给定位服务器，以触发定位服务器通过用户面对终端进行定位。
定位功能实体102，用于接收来自第一网元101发送的第二定位请求信息，根据第二定位请求信息通过用户面对终端进行定位。
本申请实施例提供的无线通信系统中，第一网元接收定位请求方发送的用于请求对终端定位的第一定位请求信息后，可以获得第二定位请求信息，以及将第二定位请求信息发送给定位服务器，以触发定位服务器通过用户面对终端进行定位。基于本申请实施例提供的无线通信系统，由于定位服务器可以通过用户面对终端进行定位，使得定位服务器与终端之间的数据交互无需通过控制面信道转发即通过第一网元转发，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
其中，在本申请实施例中，第一网元101可以包括但不限于移动管理网元和网关移动位置中心。当上述第一网元101为移动管理网元时，除了具备上述功能，还可以用于移动网络中的移动性管理，如用户位置更新、用户注册网络、用户切换等。在第五代(5th generation，5G)通信系统中，移动管理网元所对应的网元或者实体可以为5G网络架构中的接入与移动性管理功能(access and mobility management function，AMF)网元，Namf是AMF网元提供的基于服务的接口，AMF网元可以通过Namf与其他的网络功能通信，在未来通信如第六代通信(the 6th generation，6G)系统中，移动管理网元仍可以是AMF网元，或者移动管理网元有其它名称，本申请实施例对此不作限定。当第一网元101为网关移动位置中心时，上述第一网元101除了具备上述功能外，还可以用于定位业务的定位请求处理，并为定位业务选择合适的移动管理网元。在5G通信系统中，网关移动位置中心可以是(gateway mobile location centre，GMLC)，在未来通信系统如6G通信系统中，网关移动位置中心仍可以是GMLC，或者网关移动位置中心有其它名称，本申请实施例对此不作限定。在下文中以第一网元101为移动管理网元为例。
在一些实施例中，上述定位功能实体102，除了具备上述功能，还可以用于定位业务的定位请求管理、定位资源调配、获取终端的位置信息，并将位置信息返回给相关网元等。在5G无线通信系统中，定位功能实体102所对应的网元或者实体可以为5G无线通系统中的定位服务器。
如图2所示，为本申请实施例适用的另一种无线通信系统的架构示意图。该无线通信系统200除了可以包括图1中的第一网元101即移动管理网元101(图2中以208标识网关移动位置中心，用于区分网关移动位置中心和移动管理网元)、定位功能实体102即定位服务器102外，还可以包括终端201、接入设备202、用户面网元203、会话管理网元204、数据管理网元205、网络开放功能网元206、应用功能网元207、外部客户端209和位置管理网元210。其中：
终端201，可以是具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。该终端201能够与一个或多个通信系统的一个或多个网络设备进行通信，并接受接入设备202提供的网络服务。举例来说，本申请实施例中的终端201可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等，终端201还可以是用户设备(user equipment，UE)、终端(terminal)、移动台(mobile station，MS)、手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。终端201也可以是具有通信模块的通信芯片。
接入设备202，包括但不限于：5G中的下一代基站(gnodeB，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseBand unit，BBU)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心)等，本申请实施例并不做限定。接入设备202也可以是具有通信模块的通信芯片。在本申请实施例提供的基于MEC的定位方法的执行过程中，接入设备202可作为无线接入网(radio access network，RAN)基站向终端201提供无线网络连接，例如，接入设备202可作为4G接入网——演进的通用移动通信系统(universal mobile telecommunications system，UMTS)陆地无线接入网(evolved UMTS terrestrial radio access network，E-UTRAN)中的接入网基站，或者，接入设备202可作为5G接入网——5G RAN中的接入网基站，或者，接入设备202可作为未来无线通信系统中的接入网基站。
用户面网元203，用于分组路由和转发，用户面数据的服务质量(quality of service，QoS)处理等。在5G通信系统中，用户面网元203所对应的网元或实体可以为5G无线通信系统中的用户平面功能(user planefunction，UPF)网元，在未来通信系统如第六代通信(the 6th generation，6G)系统中，用户面网元203仍可以是UPF网元，或者用户面网元203有其它名称，本申请实施例对此不作限定。
会话管理网元204，用于移动网络中的会话管理，例如会话的建立、修改、释放等。 在5G通信系统中，会话管理网元304所对应的网元或者实体可以为5G无线通信系统中的会话管理功能(session management function，SMF)网元。在未来通信如第六代通信(the6th generation，6G)通信系统中，会话管理网元204仍可以是SMF网元，或者会话管理网元204可以有其它名称，本申请实施例对此不作限定。
数据管理网元205，用于处理用户标识、接入鉴权、注册、或移动性管理等。在5G通信系统中，数据管理网元所对应的网元或者实体可以为5G网络架构中的统一数据管理(unified data management，UDM)网元，其中Nudm是UDM网元提供的基于服务的接口，UDM网元可以通过Nudm与其他的网络功能通信。在未来通信系统如6G通信系统中，数据管理网元205仍可以是UDM网元，或者数据管理网元205有其它名称，本申请实施例对此不作限定。
网络开放功能网元206，主要提供的服务使得第三代合作伙伴计划(3rd generation partnership project，3GPP)网络能够安全地向第三方的业务提供者应用功能网元207提供网络业务能力。在5G通信系统中，网络开放功能网元206可以是(network exposure function，NEF)网元，Nnef是NEF网元提供的基于服务的接口，NEF网元可以通过Nnef与其他的网络功能通信，在未来通信系统如6G通信系统中，网络开放功能网元206仍可以是NEF网元，或者有其它名称，本申请实施例对此不作限定。
应用功能网元207，主要用于向3GPP网络提供应用层信息。在5G通信系统中，应用功能网元207可以是应用功能(application function，AF)网元，Naf是AF网元提供的基于服务的接口，AF网元可以通过Naf与其他的网络功能通信，在未来通信系统如6G通信系统中，应用功能网元207仍可以是AF网元，或者有其它名称，本申请实施例对此不作限定。示例性的，AF网元例如可以包括业务能力服务器(services capability server，SCS)或者应用服务器(application server，AS)。
外部客户端209，可以是终端201的位置信息的请求方，其也可以称为external client。
位置管理网元210，可以用于定位业务的定位请求管理、定位资源调配、获取终端设备的位置信息，并将位置信息返回给相关网元等。在5G无线通信系统中，位置管理网元210所对应的网元或者实体可以为5G无线通信系统中的位置管理功能(location management function，LMF)网元，Nlmf是AMF网元提供的基于服务的接口，LMF网元可以通过Nlmf与其他的网络功能通信，在未来通信系统如6G通信系统中，位置管理网元210仍可以是LMF网元，或者位置管理网元210有其它名称，本申请实施例对此不作限定。
此外，如图3所示，以5G无线通信系统为例，为本申请实施例适用的一种5G无线通信系统的架构示意图，该无线通信系统包括上述AMF网元、LMF网元、终端、gNB、UPF网元、SMF网元、UDM网元、NEF网元、AF网元、GMLC和外部客户端。此外，还可以包括认证服务器功能(authentication server function，AUSF)网元、网络切片选择功能(network slice selection function，NSSF)网元、网络功能存储功能(network exposure function Repository Function，NRF)网元、或策略控制功能(policy control function，PCF)网元、统一数据存储(unified data repository，UDR)网元、非结构化数据存储功能(unstructured data storage function，UDSF)等，本申请实施例对此不作具体限定。
其中，图3中的N1接口为终端与AMF网元之间的参考点；N2接口为gNB和AMF网元的参考点，用于非接入层(non-access stratum，NAS)消息和下一代应用协议(next generation application protocol，NGAP)消息的发送等；N3接口为gNB和UPF网元的参考 点，用于传输用户面的数据等；N4接口为SMF和UPF之间的参考点，用于传输例如N3连接的隧道标识信息，数据缓存指示信息，以及下行数据通知消息等信息；N6接口为UPF网元和数据网络(data network，DN)之间的参考点，用于传输用户面的数据等。
此外，图3所示的AUSF网元、AMF网元、SMF网元、LMF网元、NSSF网元、NEF网元、NRF网元、PCF网元、UDM网元、UDR网元、UDSF网元或者AF网元等控制面网元也可以采用服务化接口进行交互。比如，AUSF网元对外提供的服务化接口可以为Nausf；AMF网元对外提供的服务化接口可以为Namf；SMF网元对外提供的服务化接口可以为Nsmf；NSSG网元对外提供的服务化接口可以为Nnssf；NEF网元对外提供的服务化接口可以为Nnef；NRF网元对外提供的服务化接口可以为Nnrf；PCF网元对外提供的服务化接口可以为Npcf；UDM网元对外提供的服务化接口可以为Nudm；AF网元对外提供的服务化接口可以为Naf。相关描述可以参考23501标准中的5G系统架构(5G system architecture)图，在此不予赘述。
可以理解的是，上述网元或功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。上述网元或功能可划分出一个或多个服务，进一步，还可能会出现独立于网络功能存在的服务。在本申请中，上述功能的实例、或上述功能中包括的服务的实例、或独立于网络功能存在的服务实例均可称为服务实例。
在介绍本申请实施例之前，首先对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
携带，可以是指某消息用于承载某信息或数据，也可以是指某消息由某信息构成。
定位请求信息，在本申请实施例中是指用于请求针对特定的终端的定位业务的信息。定位业务可以是即时请求(location immediate request，LIR)业务或者位置延迟请求(location deferred request，LDR)业务，通过定位业务，移动通信网络可将终端的位置信息或者与位置有关的定位事件告知定位业务的请求方即定位请求方。定位服务器或者位置管理网元可用于管理针对特定的终端的定位请求信息。具体地，管理定位请求信息，是指定位服务器或位置管理网元可用于根据定位请求方发送的定位请求信息，向定位请求方反馈终端的位置信息或者向定位请求方指示终端出现定位请求信息指示的定位事件。
即时请求业务是一种“即时请求，即时响应”的定位业务，其定位请求可包括LIR。在本申请实施中，定位请求方向终端所处的核心网网元如移动管理网元或者网关移动位置中心发送LIR，由移动管理网元或者网关移动位置中心转发给定位服务器或者核心网中的其它网元如位置管理网元，以使定位服务器或者位置管理网元基于LIR向定位请求方即时反馈终端的位置信息。
位置延迟请求业务具有延迟性，定位请求方相当于向终端、终端所处的核心网网元或其他相关网元订阅终端的定位报告，该报告可以在满足一定的定位事件后触发，定位事件例如，终端移动出或移动至某一区域、终端移动距离达到阈值距离或者满足预设的报告周期等等，该报告中可以携带终端的位置信息，和/或，该报告可用于指示满足以上的位置事件，如指示终端移动出或移动至某一区域等等。
终端的位置信息，基于定位业务，终端所在的核心网网元如位置管理网元或者定位服务器可以计算得到终端的位置信息。具体例如，位置管理网元或者定位服务器可基于定位请求方发送的定位请求信息以及终端上报的测量数据，计算得到终端的位置信息，并向定 位请求方反馈终端的位置信息。具体地，位置管理网元或者定位服务器可以根据位置信息生成上述定位事件报告。其中，终端的位置信息，其可以为在某个位置系统(例如，全球定位系统(global positioning system，GPS)或北斗卫星系统)中的地理位置坐标。
终端，在本申请实施例中是指定位请求方所请求的定位业务的对象。比如，在3GPP规范中，安全用户面定位启用终端(secure user plane location enabled terminal，SET)为定位服务的客户端，即定位请求方所请求的定位业务的对象，例如安卓(android)智能手机，也即3GPP定义的终端。终端所在的核心网的网元如LMF网元或者定位服务器可基于定位请求方的定位请求，向定位请求方提供终端的位置信息，或告知定位请求方终端已满足定位请求信息指示的定位事件。
定位请求方，在本申请实施例中是指向核心网的网元如位置管理网元或者定位服务器请求提供针对终端的定位业务的通信设备，其可以是一个终端，也可以是有定位需求的外部客户端，如服务器、无线通信网络中的网元或者具有定位终端的位置需求的其他载体。比如，安全用户面定位(secure user plane location，SUPL)代理(agent)是一个需要获取位置信息的应用程序，即3gpp定义的位置服务客户端(location service client)。其中，SUPL Agent可以运行在SET中，也可以运行在SUPL网络中。其中，如果SUPL Agent运行在SET中，定位请求方即为终端。如果SUPL Agent运行在SUPL网络中，定位请求方即为有定位需求的外部客户端。
定位服务器，在本申请实施例中采用MEC方式进行部署，其可以为MEC平台或服务器。定位服务器的具体部署形态本申请不做限定，具体可以是云端部署，还可以是独立的计算机设备或芯片等。其中，定位服务器与终端之间的数据交互可直接通过用户面(user plane)进行。比如，SUPL是操作维护管理(operation administration and maintenance，OAM)组织定义的一种定位协议，定位服务器可以基于SUPL协议通过用户面与终端进行交互，即终端可以通过用户面来传送SUPL报文，SUPL报文可以封装终端上报的定位请求信息、测量数据等信息以及定位服务器给终端下达的测量请求信息。
另外，需要理解的是，本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一定位请求信息和第二定位请求信息，只是为了区分不同的定位请求信息，而并不是表示这两种定位请求信息的优先级或者重要程度等的不同。
在本申请实施例中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
下面将结合图1至图3对本申请实施例提供的基于MEC的定位方法进行具体阐述。
应理解，本申请实施例所示方法不仅应用于如1-3的所示无线通信系统，还可以应用于未来其它的通信系统，例如6G通信系统等，在未来通信系统中，可能保持功能相同，但名称可能会改变。
在一些实施例中，以图1或者图2所示的无线通信系统应用于如图3所示的5G无线通信系统为例，如图4所示，为本申请实施例提供的一种基于MEC的定位方法的流程示意图。其中，该方法流程包括以下步骤：
S401：定位请求方向AMF网元发送第一定位请求信息。相应的，AMF网元接收来自定位请求方发送的第一定位请求信息。其中，第一定位请求信息用于请求对终端进行定位，第一定位请求信息中携带终端的标识信息。
在一些实施例中，定位请求方若需要对某个终端进行定位，可以向AMF网元发送携带终端的标识信息的第一定位请求信息。其中，终端的标识信息可以为终端的国际移动设备识别码(international mobile equipment identity，IMEI)，或者用户永久标识(subscription permanent identifier，SUPI)，也可以为一般公共订阅标识(generic public subscription identifier，GPSI)，或者其它可以标识终端的信息，本申请实施例不做具体限定。
S402：AMF网元根据第一定位请求信息，确定对终端进行定位的定位功能实体为定位服务器。
在一些实施例中，第一定位请求信息可以携带定位时延要求。AMF网元接收到定位请求方发送的第一定位请求信息后，可以根据第一定位请求信息确定定位请求方对时延为高要求。比如，定位请求方在向AMF网元发送第一定位请求信息之前，可以通过在第一定位请求信息中插入定位时延要求。相应的，AMF网元接收到第一定位请求信息后，可以获取到第一定位请求信息中携带的定位时延要求，从而可以根据该定位时延要求，确定定位请求方对时延为高要求。
例如，AMF网元确定第一定位请求信息中携带的定位时延要求小于或者等于预设时长阈值时，确定定位请求方对时延为高要求，即AMF网元确定需要对终端进行快速定位，这时可以选择定位服务器对终端进行定位。其中，定位时延要求可以为定位请求方根据需求设定的，也可以为增值定位业务对应的定位时延要求。比如，定位请求方开通了某种需要付费的定位服务业务。当定位请求方通过使用该定位服务业务对终端进行定位时，那么定位请求方向AMF网元发送的第一定位请求信息可以携带有增值定位业务对应的定位时延要求，之后，AMF网元可以根据增值定位业务对应的定位时延要求，确定定位请求方对时延为高要求。
在另外一些实施例中，第一定位请求信息可以携带第一指示信息，其中，第一指示信息指示低时延定位业务。AMF网元接收到定位请求方发送的第一定位请求信息后，可以根据第一定位请求信息中携带的第一指示信息，确定定位请求方对时延为高要求。可选的，第一指示信息可以为指示符(indicator)。
需要说明的是，上述是以第一指示信息用于直接指示低时延业务为例。当然，在具体的实现过程中，第一指示信息还可以用于间接指示低时延业务，本申请实施例对此不作限定。比如，第一指示信息可以为定位业务的标识信息，AMF网元接收到定位请求方发送的第一定位请求信息后，可以根据第一定位请求信息中携带的第一指示信息间接确定第一指示信息标识的定位业务为低时延业务。例如，AMF网元中可以存储至少一个定位业务与标 识信息之间的第一对应关系以及至少一个定位业务与时延要求之间的第二对应关系。AMF网元接收到定位请求方发送的第一定位请求信息后，可以根据第一指示信息和第一对应关系确定第一指示信息标识的定位业务。之后，AMF网元根据第一指示信息标识的定位业务和第二对应关系确定第一指示信息标识的定位业务的时延要求为高要求时，可以确定第一指示信息标识的定位业务为低时延业务。
在具体的实现过程中，上述实施例中的定位时延要求和第一指示信息可以结合进行使用，本申请实施例不对此做具体限定。
需要说明的是，本申请实施例中，定位请求方对时延为高要求，可以表示为定位请求方请求对终端进行定位所需的时延低。比如，以为预设时长阈值为8毫秒为例，当定位请求方请求对终端进行定位所需的时延为5毫秒，则可以表示定位请求方对时延为高要求。相应的，低时延业务可以表示为定位请求方请求对终端进行定位的定位业务所需的时延低。
在本申请实施例中，AMF网元通过根据第一定位请求信息中携带的定位时延要求或者第一指示信息，确定对终端定位的时延要求，从而可以满足定位请求方对终端的快速定位需求。
在一些实施例中，AMF网元可以在确定定位请求方对时延为高要求时，确定对终端进行定位的定位功能实体为定位服务器。
在本申请实施例中，AMF网元可以通过根据第一定位请求信息，确定对终端进行定位的定位功能实体为定位服务器，便于后续定位服务器根据AMF网元发送的第二定位请求信息通过用户面对终端进行定位，避免通过控制面传输路径进行交互即通过AMF网元进行转发导致定位时延较大的问题，从而可以选择靠近终端和接入设备的定位服务器来对终端进行定位，可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短终端的定位时延，有助于提升用户的体验。
在具体的实现过程中，AMF网元确定对终端进行定位的定位功能实体为定位服务器后，可以从至少一个定位服务器中选出对终端进行定位的定位服务器。比如，数据管理网元(如图3中的UDM网元)中可以预先存储至少一个定位服务器的配置信息。AMF网元可以根据终端的第一位置信息以及至少一个定位服务器的配置信息，确定对终端进行定位的定位服务器。可选的，至少一个定位服务器的配置信息可以包括至少一个定位服务器管辖的区域信息，至少一个定位服务器管辖的区域信息为至少一个定位服务器管辖的跟踪区标识(tracking area identity，TAI)信息，终端的第一位置信息为目标TAI信息。在下文中为了区别终端的目标TAI信息和地理位置信息，以第一位置信息表示终端的目标TAI信息，以第二位置信息表示终端的地理位置信息。
例如，AMF网元接收到定位请求方发送的第一定位请求信息后，可以根据第一定位请求信息中携带的终端的标识信息，从UDM网元中获取终端的目标TAI信息，以及获取UDM网元中存储的至少一个定位服务器的配置信息。之后，当AMF网元确定至少一个定位服务器中的某个定位服务器的配置信息包括终端的目标TAI信息时，AMF网元则可以确定该定位服务器为对终端进行定位的定位服务器。
其中，至少一个定位服务器可以是终端所在的接入网中的定位服务器，也可以是终端所在的无线通信系统所管辖的定位服务器，本申请实施例对此不进行具体限定。
在本申请实施例中，AMF网元通过根据终端的目标TAI信息和至少一个定位服务器 的配置信息，从至少一个定位服务器中确定出对终端进行定位的定位服务器，可以确保确定出的定位服务器是靠近终端和接入网设备(如图3中的gNB)的，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
S403：AMF网元根据第一定位请求信息获得第二定位请求信息。其中，第二定位请求信息中携带终端的网络地址。
在一些实施例中，AMF网元可以根据终端的标识信息获取终端的网络地址，之后，可以根据第一定位请求信息和终端的网络地址获得第二定位请求信息。其中，第二定位请求信息包括所述终端的网络地址。AMF网元获取到终端的网络地址后，可以根据第一定位请求信息获得第二定位请求信息。其中，本申请实施例中，对AMF网元根据第一定位请求信息获得第二定位请求信息的具体实现方式不限定。比如，AMF网元可以将第一定位请求信息中携带的定位时延要求或者第一指示信息提取出来，再将终端的网络地址插入第一定位请求信息中，获得第二定位请求信息，等等。其中，终端的网络地址可以包括但不限于：互联网协议(internet protocol，IP)地址，媒体存取控制(media access control，MAC)地址(address)等。
在本申请实施例中，AMF网元可以通过根据终端的标识信息获取终端的网络地址，便于后续定位服务器根据终端的网络地址通过用户面对终端进行定位，从而可以缩短定位服务器与终端之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短定位服务器对终端的定位时延。
S404、AMF网元将第二定位请求信息发送给定位服务器。相应的，定位服务器可以接收来自AMF网元发送的第二定位请求信息。其中，第二定位请求信息用于触发定位服务器通过用户面对终端进行定位。
在一些实施例中，AMF网元可以通过网络开放功能网元(如图3中的NEF网元)将第二定位请求信息发送给定位服务器。
S405、定位服务器根据第二定位请求信息，通过用户面向终端发送测量请求信息。相应的，终端接收来自定位服务器的测量请求信息。其中，测量请求信息携带有终端的网络地址，用于指示终端上报测量数据，该测量数据用于定位服务器计算终端的第二位置信息。
在一些实施例中，定位服务器接收来自AMF网元的第二定位请求信息后，可以选择合适的定位计算方法，之后，根据该定位计算方法，确定需要由终端提供的测量数据，并通过用户面向终端设备发送测量请求信息，用于指示终端上报该测量数据。比如，定位服务器可以根据第二定位请求信息，通过终端对应的数据连接向终端发送测量请求信息。相应的，终端通过该数据连接接收来自定位服务器的测量请求信息。其中，数据连接可以包括但不限于分组数据单元(packet data unit，PDU)会话(session)。
例如，定位服务器可以根据第二定位请求信息中携带的终端的网络地址，确定测量请求信息的目的地址为终端的网络地址，之后，可以向位于终端对应的数据连接中的用户面网元(如图3中的UPF网元)发送终端的网络地址和测量请求信息，以使UPF网元根据终端的网络地址，通过该数据连接将测量请求信息转发给终端。相应的，终端通过该数据连接接收来自定位服务器的测量请求信息。例如，请参见图3所示，测量请求信息的传输路径可以为“定位服务器-UPF网元-接入网设备-终端”，即该数据连接由定位服务器、UPF网元、接入网设备(如图3中的gNB)和终端构成。
本申请实施例中，定位服务器通过UPF网元根据终端的网络地址信息将测量信息转发给终端，从而可以通过终端的用户面传输路径将该测量信息发送给终端，进而可以避免通过控制面传输路径进行交互即通过AMF网元进行转发导致定位时延较大的问题，进一步的可以缩短终端的定位时延，有助于提升用户的体验。
其中，通过终端对应的数据连接，可以表示为通过终端的用户面传输路径，相应的，通过位于终端对应的数据连接中的UPF网元，可以表示为通过位于终端的用户面传输路径中的UPF网元，本申请实施例对此不做具体限定。
本申请实施例中，在对终端进行定位的过程中，定位服务器在与终端交互时，可以通过终端的用户面传输路径进行，从而可以避免通过控制面传输路径进行交互即通过AMF网元进行转发导致定位时延较大的问题，从而可以选择靠近终端和接入设备的定位服务器来对终端进行定位，可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短终端的定位时延，有助于提升用户的体验。
可选的，在本申请实施例的一种实施场景下，该基于MEC的定位方法还包括如下步骤S406-S409：
S406：终端进行测量得到测量数据。
在一些实施例中，终端接收到来自定位服务器的测量请求信息时，可以根据该测量请求信息，测量得到测量数据。比如，终端可以按照网络侧(如gNB)为终端配置的测量参数进行测量、收集(例如测量终端所处的服务小区以及该服务小区的相邻小区的信号质量等)，得到测量数据。
S407：终端向定位服务器发送测量数据。相应的，定位服务器接收到来自终端的测量数据。
在一些实施例中，终端可以通过终端对应的数据连接向定位服务器发送测量数据。比如，终端可以将该测量数据发送给位于终端对应的数据连接中的UPF网元，以使UPF网元根据终端的网络地址，通过该数据连接将该测量数据转发给定位服务器。可选的，参考图3所示，测量数据的传输路径可以为“终端-gNB-UPF网元-定位服务器”。
S408：定位服务器根据测量数据计算终端的第二位置信息。
在一些实施例中，定位服务器接收到该测量数据后，可以根据上述S405中选择的定位计算方法，计算终端的第二位置信息。
S409：定位服务器将终端的第二位置信息发送给定位请求方。
在一些实施例中，定位服务器计算得到终端的第二位置信息后，可以向通过网关移动位置中心网元(如图3中的GMLC网元)将终端位置信息反馈给定位请求方。
需要说明的是，图4是以定位请求方为有定位需求的外部客户端为例。当定位请求方为终端时，定位服务器计算得到终端的第二位置信息后，可以通过网络开放功能网元(如图3中的NEF网元)将终端的第二位置信息反馈给终端。
本申请实施例中，定位服务器可以支持不同的定位请求方对终端的定位需求。
本申请实施例中，在对终端进行定位的过程中，终端在与定位服务器进行交互时，可以通过终端的用户面传输路径进行，同样可以避免通过AMF网元的转发即通过控制面传输路径交互，从而可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长。进而可以缩短终端的定位时延，有助于提升用 户的体验。
下面结合具体实施例图5，对上述图1至图4所示的实施例进行详细的说明。
在另外一些实施例中，以图1或图2所示的无线通信系统应用于如图3所示的5G无线通信系统为例，如图5所示，为本申请实施例提供的另一种基于MEC的定位方法，该方法包括如下步骤：
S501：定位请求方向AMF网元发送第一定位请求信息。相应的，AMF网元接收来自定位请求方发送的第一定位请求信息。其中，第一定位请求信息用于请求对终端进行定位，第一定位请求信息中携带终端的标识信息。
S502：AMF网元根据第一定位请求信息，确定对终端进行定位的定位功能实体为定位服务器。
S503：AMF网元根据第一定位请求信息获得第二定位请求信息。其中，第二定位请求信息中携带终端的网络地址。
S504、AMF网元将第二定位请求信息发送给定位服务器。相应的，定位服务器可以接收来自AMF网元发送的第二定位请求信息。其中，第二定位请求信息用于触发定位服务器通过用户面对终端进行定位。
S505、定位服务器根据第二定位请求信息，通过用户面向终端发送测量请求信息。相应的，终端接收来自定位服务器的测量请求信息。其中，测量请求信息携带有终端的网络地址，用于指示终端上报测量数据，该测量数据用于定位服务器获取终端的位置信息。
其中，步骤S501-S505与图4所示的实施例中的步骤S401-S405相同，相关描述可参考图4所示的实施例，在此不再赘述。
本申请实施例中，在对终端进行定位的过程中，定位服务器与终端可以通过终端的用户面传输路径进行交互，可以避免通过AMF网元的转发即控制面传输路径交互，从而AMF网元可以选择靠近终端和接入设备的定位服务器来对终端进行定位计算，从而可以缩短终端与定位服务器之间的消息传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短终端的定位时延，有助于提升用户的体验。
需要说明的是，图5所示的实施例以在步骤S503之前，终端对应的数据连接未建立为例进行说明。
可选的，定位服务器在通过终端对应的数据连接向终端发送测量请求信息之前，由于终端的数据连接还未建立，因此，在步骤S503之前，AMF还需指示SMF网元为终端建立数据连接。另外，AMF网元还可以获取终端的网络地址，该网络地址为在终端的数据连接建立过程中，网络为终端分配的。可选的，SMF网元在建立终端的数据连接的过程中，可以为终端分配网络地址，之后，将该网络地址发送给AMF网元。其中，SMF网元为服务于终端的会话管理网元。
其中，本申请实施例中，SMF网元向AMF发送终端的网络地址的方式可以有多种。比如，终端的网络地址可以是AMF网元向SMF网元请求后，SMF网元发送给AMF网元的，也可以是AMF网元指示SMF网元发送给AMF网元的，等等，本申请实施例对此不做具体限定。
基于此，在另外一些实施例中，在步骤S503之前，AMF网元可以判断终端对应的数据连接是否已经成功建立，此时，图5所示的实施例还可以包括如下步骤：
S503a：AMF网元向UDM网元发送检测信息。相应的，UDM网元接收来自AMF网 元的检测信息。其中，检测信息用于检测UDM网元中是否以存在终端对应的数据连接。
在另外一些实施例中，检测信息可以包括终端的标识信息，以便UDM网元可以根据终端的标识信息，检测是否已存在终端对应的数据连接。
在另外一些实施例中，UDM网元可以存储终端对应的数据连接的记录。UDM网元接收到检测信息后，可以根据该检测信息中携带的终端的标识信息，检测是否已存储该终端对应的PDDU session的记录。当UDM网元检测到存储的数据连接记录中不存在该终端对应的数据连接的记录时，可以不响应该检测信息或者向AMF网元发送提示信息，用于提示AMF网元终端当前不存在对应的数据连接。之后，AMF网元可以执行下述步骤S503b。
S503b：AMF网元向终端发送网络触发信息，以触发终端建立该终端到定位服务器之间的数据连接。
其中，网络触发信息包括定位服务器的信息，用于触发终端向SMF网元发送建立终端到定位服务器之间的数据连接的建立请求信息。
S503c：终端根据网络触发信息向SMF网元发送建立请求信息。其中，该建立请求信息中携带定位服务器的数据网络名称(data network name，DNN)。
在另外一些实施例中，若终端接收到的定位服务器的信息为定位服务器的DNN，终端则可以将携带定位服务器的DNN的建立请求信息发送给SMF网元。或者，若终端接收到的定位服务器的信息为IP地址，终端则可以根据定位服务器的IP地址从UDM网元中获取定位服务器的DNN，之后，将携带定位服务器的DNN的建立请求信息发送给SMF网元。即在该实施例中，SMF网元接收到的定位服务器的DNN是AMF网元通过终端发送的。
在本申请实施例中，终端可以在确定接收到的定位服务器的信息为IP地址时，根据定位服务器的IP地址从UDM网元中获取定位服务器的DNN，从而可以确保向SMF网元发送建立请求信息中携带的定位服务器的信息为定位服务的DNN，以便后续SMF网元根据定位服务器的DNN建立终端到定位服务器之间的数据连接。
S503d：SMF网元根据建立请求信息建立终端到定位服务器之间的数据连接。
在另外一些实施例中，SMF网元可以获取终端的标识信息，其中，该标识信息可以为终端发送的建立请求信息中携带的，还可以是AMF网元将终端的标识信息发送给SMF网元，等等，本申请实施例对此不做具体限定。
在另外一些实施例中，SMF网元还可以获取终端的第一位置信息如目标TAI信息。其中，本申请实施例中，对SMF网元获取终端的第一位置信息的方式不做具体的限定。比如，SMF可以获取AMF网元发送的终端的第一位置信息，或者，SMF网元可以根据终端的标识信息从UDM网元中获取终端的第一位置信息，等等。
在另外一些实施例中，SMF网元可以在接收建立请求信息后，根据定位服务器的DNN以及终端的第一位置信息如目标TAI信息，选择靠近终端侧的UPF网元,建立终端到定位服务器之间的数据连接。具体的，如图3所示，该数据连接可以由终端、gNB、UPF网元和定位服务器构成。
在另外一些实施例中，SMF网元可以在建立终端到定位服务器之间的数据连接的过程中，根据终端的标识信息为终端分配网络地址。
在本申请实施例中，SMF网元通过建立终端到定位服务器之间的数据连接，从而使得终端与定位服务器可以通过数据连接直接进行数据交互，无需经过AMF网元转发，从而 可以缩短终端与定位服务器之间的传输距离，进而可以缩短终端与定位服务器之间数据传输所需的传输时长，可以有效地缩短终端的定位时延。
S503e：SMF网元向AMF网元发送通知信息和终端的网络地址。其中，该通知信息用于通知SMF已建立终端到定位服务器之间的数据连接。
在一些实施例中，SMF网元完成终端对应的数据连接的建立后，可以向AMF网元发送通知信息，用于通知AMF网元终端对应的数据连接已完成建立。
本申请实施例中，AMF网元可以通过SMF网元获取终端的网络地址，以便后续定位服务器可以根据终端的网络地址实现通过用户面与终端进行交互，从而可以缩短定位服务器对终端的定位时延。
至此，AMF网元可以根据终端的网络地址和第一定位请求信息得到第二定位请求信息。定位服务器可以根据终端对应的数据连接向终端发送测量请求信息。
可选的，在本申请实施例的一种实施场景下，步骤S505之后，图5所示的方法还包括如下步骤S506-S509：
S506：终端进行测量得到测量数据。
S507：终端向定位服务器发送测量数据。相应的，定位服务器接收到来自终端的测量数据。
S508：定位服务器根据测量数据计算终端的第二位置信息。
S509：定位服务器将终端的第二位置信息发送给定位请求方。
其中，步骤S506-S509分别与图4所示的实施例中的步骤S406-S409相同，相关描述可参考图4所示的实施例，在此不再赘述。
本申请实施例中，在对终端进行定位的过程中，终端与定位服务器可以通过终端的用户面传输路径进行交互，同样可以避免通过AMF网元的转发即控制面传输路径交互，从而可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短终端的定位时延，有助于提升用户的体验。
下面结合具体实施例图6至图7，对上述图1至图5所示的实施例进行详细的说明。
在另外一些实施例中，以图1或图2所示的通信系统应用于如图3所示的5G无线通信系统为例，如图6所示，为本申请实施例提供的又一种基于MEC的定位方法，该方法包括如下步骤：
S601：定位请求方向AMF网元发送第一定位请求信息。相应的，AMF网元接收来自定位请求方发送的第一定位请求信息。其中，第一定位请求信息用于请求对终端进行定位，第一定位请求信息中携带终端的标识信息。
S602：AMF网元根据第一定位请求信息，确定对终端进行定位的定位功能实体为定位服务器。
S603：AMF网元根据第一定位请求信息获得第二定位请求信息。其中，第二定位请求信息中携带终端的网络地址。
S604、AMF网元将第二定位请求信息发送给定位服务器。相应的，定位服务器可以接收来自AMF网元发送的第二定位请求信息。其中，第二定位请求信息用于触发定位服务器通过用户面对终端进行定位。
S605、定位服务器根据第二定位请求信息，通过用户面向终端发送测量请求信息。相应的，终端接收来自定位服务器的测量请求信息。其中，测量请求信息携带有终端的网络 地址，用于指示终端上报测量数据，该测量数据用于定位服务器获取终端的位置信息。
其中，步骤S601-S605与图4所示的实施例中的步骤S401-S405相同，相关描述可参考图4所示的实施例，在此不再赘述。
本申请实施例中，在对终端进行定位的过程中，定位服务器与终端可以通过终端的用户面传输路径进行交互，可以避免通过AMF网元的转发即控制面传输路径交互，从而AMF网元可以选择靠近终端和接入设备的定位服务器来对终端进行定位计算，从而可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短终端的定位时延，有助于提升用户的体验。
需要说明的是，图6所示的实施例以在步骤S603之前，终端对应的数据连接已建立成功为例进行说明。
可选的，定位服务器在通过终端的数据连接向终端发送测量请求信息之前，由于测量请求信息的目的网络地址为终端的网络地址，因此，在步骤S603之前，AMF网元获取终端的网络地址，该网络地址为在终端的数据连接建立过程中，网络为终端分配的。可选的，SMF网元建立终端的数据连接的过程中，为终端分配网络地址，之后，将该网络地址发送给AMF网元。其中，SMF网元为服务于终端的会话管理网元。
其中，本申请实施例中，SMF网元向AMF发送终端的网络地址的方式可以有多种。比如，终端的网络地址可以是AMF网元向SMF网元请求后，SMF网元发送给AMF网元的，也可以是AMF网元指示SMF网元发送给AMF网元的，等等，本申请实施例对此不做具体限定。
基于此，在另外一些实施例中，在步骤S603之前，图6所示的实施例还可以包括如下步骤：
S603a：AMF网元将终端的标识信息和定位服务器的信息发送给SMF网元，以指示SMF网元建立该终端到定位服务器之间的数据连接。
在步骤S603a中，AMF网元已确定UDM网元中存在终端对应的数据连接的记录，请参图7所示，为本申请实施例适用的又一种5G无线通信系统的架构示意图。其中，图7和图3的架构类似，在此不再赘述。其中，5G无线通信系统可以支持一个数据连接存在多个协议数据单元会话锚点(PDU session anchor，PSA)的场景，例如，如图7所示，终端对应的数据连接可以包括PSA1和PSA2。其中，在该步骤中，UDM网元中当前存在的终端对应的数据连接为由终端、gNB、PSA1和数据网络(data network，DN)构成的数据连接。
在另外一些实施例中，当AMF网元确定UDM网元中当前存在终端对应的数据连接时，AMF网元可以向SMF网元发送终端的标识信息和定位服务器的信息。具体的，定位服务器的信息可以为定位服务器的IP地址或者定位服务器的DNN。其中，在具体的实现过程中，当定位服务器的信息为定位服务器的IP地址时，AMF网元可以向网络存储功能网元(如图7中的NRF网元)访问获得定位服务器的DNN。例如，AMF网元根据定位服务器的配置信息确定定位服务器的IP地址之后，向NRF网元发送定位服务器的IP地址。之后，NRF网元可以根据接收到定位服务器的IP地址确定定位服务器的DNN，并向AMF网元发送定位服务器的DNN。或者是，AMF网元可以获取预先存储的至少一个定位服务器的DNN与IP地址之间的关系。当AMF网元根据定位服务器的配置信息确定定位服务器的IP地址之后，可以根据该对应关系确定定位服务器的DNN。或者是，AM F网元向 SMF网元发送定位服务器的IP地址。之后，SMF网元将定位服务器的IP地址转换成对应的DNN，等等，本申请实施例不限定。
S603b：SMF网元根据终端的标识信息和定位服务器的信息，在终端当前对应的数据连接中插入终端所在的接入网中的上行分类器(Uplink Classifier，UL CL)的地址以及PSA的地址，建立终端到定位服务器之间的数据连接。
在另外一些实施例中，SMF网元接收到AMF网元发送的终端的标识信息和定位服务器的信息后，SMF网元可以选择在终端当前对应的数据连接中插入终端所在的接入网中的UL CL的地址以及PSA的地址，建立终端到定位服务器之间的数据连接。比如，如图7所示，SMF网元可以根据定位服务器的DNN以及终端的目标TAI信息，选择靠近终端和/或gNB的UL CL以及PAS2，并建立起由终端到定位服务器之间的数据连接，即终端到定位服务器之间的数据连接为由终端、gNB、PSA2和定位服务器构成的数据连接。其中，UL CL可以起到切换数据连接的效果。
在本申请实施例中，SMF网元通过在终端当前对应的数据连接中插入终端所在的接入网中的UL CL的地址以及PSA的地址，来建立终端到定位服务器之间的数据连接，从而可以选择靠近终端侧和定位服务器的UL CL和PSA，从而使得终端与定位服务器可以通过新建的数据连接直接进行数据交互，无需经过AMF网元转发，从而可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以有效地缩短终端的定位时延。
S603c：SMF网元向AMF网元发送通知信息和终端的网络地址。其中，该通知信息用于通知SMF已建立终端到定位服务器之间的数据连接。
在一些实施例中，SMF网元完成终端对应的数据连接的建立后，可以向AMF网元发送通知信息，通知AMF网元终端对应的数据连接已完成建立。
至此，AMF网元可以根据终端的网络地址和第一定位请求信息得到第二定位请求信息。定位服务器可以根据终端到定位服务器之间的数据连接向终端发送测量请求信息。
可选的，在本申请实施例的一种实施场景下，步骤S605之后，图6所示的方法还包括如下步骤S606-S609：
S606：终端进行测量得到测量数据。
S607：终端向定位服务器发送测量数据。相应的，定位服务器接收到来自终端的测量数据。
S608：定位服务器根据测量数据计算终端的位置信息。
S609：定位服务器将终端的第二位置信息发送给定位请求方。
其中，步骤S606-S609分别与图4所示的实施例中的步骤S406-S409相同，相关描述可参考图4所示的实施例，在此不再赘述。
本申请实施例中，在对终端进行定位的过程中，终端与定位服务器可以通过终端的用户面传输路径进行交互，同样可以避免通过AMF网元的转发即控制面传输路径交互，从而可以缩短终端与定位服务器之间的传输距离，进一步的可以减少终端与定位服务器之间传输数据所需的传输时长，进而可以缩短终端的定位时延，有助于提升用户的体验。
需要说明的是，上述实施例中是以AMF网元根据第一定位请求信息，确定对终端进行定位的定位功能实体为定位服务器为例。相应的，在另外一些实施例中，AMF网元还可以根据第一定位请求信息，确定对终端进行定位的定位功能实体为LMF网元。比如，当 AMF网元确定在第一定位请求信息中携带的定位时延要求大于预设时长阈值，或者确定第一定位请求信息中没有携带第一指示信息，或者确定第一定位请求信息中携带第二指示信息，第二指示信息用于指示高时延定位业务时，AMF网元确定对终端不需要进行快速定位计算，这时可以选择核心网侧的定位功能实体，例如LMF网元对终端进行定位。其中，LMF网元对终端进行定位的具体流程可以采用现有定位流程，本申请实施例在此不再赘述。
在本申请实施例中，AMF网元可以根据定位请求方对定位时延的不同要求，选择不同的定位功能实体对终端进行定位，从而可以满足定位请求方对不同定位时延的需求。
应理解，本申请实施例中，各个网元和定位服务器可以执行本申请实施例中的部分或全部步骤，这些步骤仅是示例，本申请实施例还可以执行其它步骤或者各种步骤的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部步骤。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
上述主要从各个网元之间以及各个网元与定位服务器之间的交互的角度对本申请实施例提供的方案进行了介绍。应理解，上述第一网元、定位服务器或终端为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对第一网元、定位服务器或终端进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用集成的单元(模块)的情况下，图8示出了本申请实施例中适用的一种第一网元的结构示意图。如图8所示，第一网元800可以包括：接收单元801、处理单元802和发送单元803。
其中，处理单元802用于对第一网元800的动作进行控制管理，例如，处理单元802用于支持第一网元800执行图4至图6中的过程S402，和/或用于本文所描述的技术的其它过程。发送单元803和接收单元801用于支持第一网元800与其他网络实体的通信，例如与图4至图6所示的定位服务器和/或终端之间的通信。
可选的，第一网元800还可以包括存储单元804，用于存储第一网元800的程序代码和/或数据。具体的，可以参考如下描述：
接收单元801，用于接收定位请求方发送的第一定位请求信息，所述第一定位请求信息用于请求对终端进行定位，所述第一定位请求信息中携带所述终端的标识信息；
处理单元802，用于据所述第一定位请求信息，确定对所述终端进行定位的定位功能实体，所述定位功能实体为定位服务器；根据所述第一定位请求信息获得第二定位请求信息；
发送单元803，用于将所述第二定位请求信息发送给所述定位服务器，以触发所述定位服务器通过用户面对所述终端进行定位。
在一种可能的设计中，所述处理单元802还可以用于：根据所述第一定位请求信息中携带的定位时延要求或者第一指示信息，确定所述定位请求方对时延为高要求。
在一种可能的设计中，所述处理单元802根据所述第一定位请求信息，确定对所述终端进行定位的定位服务器时，可以具体用于：根据所述终端的标识信息，获取所述终端的第一位置信息，以及获取至少一个定位服务器的配置信息，所述至少一个定位服务器的配置信息包括所述至少一个定位服务器管辖的区域信息；根据所述终端的第一位置信息以及所述至少一个定位服务器的配置信息，确定对所述终端进行定位的定位服务器。
本申请实施例这里不对所述终端的第一位置信息和所述至少一个定位服务器管辖的区域信息的具体内容限定，比如，所述终端的第一位置信息为目标跟踪区标识TAI信息；所述至少一个定位服务器管辖的区域信息为所述至少一个定位服务器管辖的跟踪区标识TAI信息。
在一种可能的设计中，所述接收单元801还可以用于：根据所述终端的标识信息获取所述终端的网络地址；所述处理单元802根据所述第一定位请求信息获得第二定位请求信息时，可以具体用于：根据所述第一定位请求信息和所述终端的网络地址获得所述第二定位请求信息，其中，所述第二定位请求信息包括所述终端的网络地址。
在一种可能的设计中，所述发送单元803还可以用于：将所述终端的标识信息和所述定位服务器的信息发送给会话管理功能SMF网元；所述接收单元801根据所述终端的标识信息获取所述终端的网络地址时，可以具体用于：获取所述SMF网元发送的所述终端的网络地址。
在一种可能的设计中，所述发送单元803还可以用于：将所述定位服务器的信息发送给所述终端，触发所述终端建立所述终端到所述定位服务器之间的数据连接；所述接收单元801根据所述终端的标识信息获取所述终端的网络地址时，可以具体用于：获取SMF网元发送的所述终端的网络地址，所述网络地址为网络在所述数据连接建立过程中为所述终端分配的。
在一种可能的设计中，所述发送单元803将所述第二定位请求信息发送给所述定位服务器时，可以具体用于：通过网络开放功能NEF网元将所述第二定位请求信息，发送给所述定位服务器。
在一种可能的设计中，所述处理单元802根据所述第一定位请求信息中携带的定位时延要求，确定所述定位请求方对时延为高要求时，可以具体用于：确定所述定位时延要求小于或者等于预设时长阈值时，确定所述定位请求方对时延为高要求。
在一种可能的设计中，所述处理单元802根据所述第一定位请求信息中携带的第一指示信息，确定所述定位请求方对时延为高要求时，可以具体用于：所述第一指示信息指示低时延定位业务，根据所述第一指示信息确定所述定位请求方对时延为高要求。
本申请实施例这里不对所述定位服务器的信息的具体内容进行限定。比如，所述定位服务器的信息可以为所述定位服务器对应的数据网络名称DNN或者为互联网协议IP地址。
本申请实施例这里不对所述定位请求方进行限定。比如，所述定位请求方可以为所述终端或者为有定位需求的外部客户端。
应理解，第一网元800中的各个模块的操作和/或功能分别为了实现图4到图6所示的 基于MEC的定位方法的相应流程，为了简洁，在此不再赘述。
在采用集成的单元(模块)的情况下，图9示出了本申请实施例中适用的另一种第一网元的结构示意图。如图9所示，第一网元900可以包括至少一个处理器901和存储器902。所述存储器902存储一个或多个计算机程序，例如存储第一网元900必要的一个或多个计算机程序。所述处理器901用于支持第一网元900实现上述基于MEC的定位方法，例如，当所述存储器902存储的一个或多个计算机程序被所述至少一个处理器901执行时，使得所述第一网元900可以实现图4-图6所示的基于MEC的定位方法的实施例的任意一种可能，和/或用于实现本文所描述的其他实施例。
基于与上述方法实施例相同构思，本申请实施例中还提供一种第一网元，所述第一网元包括执行上述基于MEC的定位方法的方法实施例，或者方法实施例的任意一种可能的实现方式的模块/单元。这些模块/单元可以通过硬件实现，也可以通过硬件执行相应的软件实现。
在采用集成的单元(模块)的情况下，图10示出了本申请实施例中适用的一种终端的结构示意图。如图10所示，终端1000可以包括：接收单元1001、发送单元1002。
其中，发送单元1002和接收单元1001用于支持终端1000与其他网络实体的通信，例如图4至图6所示的第一网元和/或定位服务器之间的通信。
可选的，终端1000还包括处理单元1004,用于对终端1000的动作进行控制管理，例如，处理单元1004用于支持终端1000执行图4至图6中的过程S406，和/或用于本文所描述的技术的其它过程。
可选的，终端1000还可以包括存储单元1003，用于存储终端1000的程序代码和/或数据。具体的，可以参考如下描述：
接收单元1001，用于接收定位服务器通过所述终端1000到所述定位服务器之间的数据连接发送的测量请求信息，所述测量请求信息携带有所述终端1000的网络地址；
发送单元1002，用于将测量得到的测量数据通过所述数据连接上报给所述定位服务器，以使所述定位服务器根据所述测量数据计算所述终端1000的第二位置信息。
在一种可能的设计中，所述接收单元1001接收定位服务器通过所述终端1000到所述定位服务器之间的数据连接发送的测量请求信息之前，还可以用于：接收第一网元发送的网络触发信息，所述网络触发信息包括所述定位服务器的信息；所述发送单元1002，还可以用于：根据所述网络触发信息向SMF网元发送建立所述终端1000到所述定位服务器之间的数据连接的建立请求信息，以建立所述数据连接。
应理解，终端1000中的各个模块的操作和/或功能分别为了实现图4到图6所示的基于MEC的定位方法的相应流程，为了简洁，在此不再赘述。
在采用集成的单元(模块)的情况下，图11示出了本申请实施例中适用的另一种终端的结构示意图。如图11所示，终端1100可以包括至少一个处理器1101和存储器1102；所述存储器1102存储一个或多个计算机程序，例如用于存储终端1100必要的一个或多个计算机程序。所述处理器1101用于支持终端1100实现上述基于MEC的定位方法，例如，当所述存储器1102存储的一个或多个计算机程序被所述至少一个处理器1101执行时，使得所述终端1100可以实现图4-图6所示的基于MEC的定位方法的实施例的任意一种可能，和/或用于实现本文所描述的其他实施例。
基于与上述方法实施例相同构思，本申请实施例中还提供一种终端，所述终端包括执 行上述基于MEC的定位方法的方法实施例，或者方法实施例的任意一种可能的实现方式的模块/单元。这些模块/单元可以通过硬件实现，也可以通过硬件执行相应的软件实现。
在采用集成的单元(模块)的情况下，图12示出了本申请实施例中适用的一种定位服务器的结构示意图。如图12所示，定位服务器1200可以包括：接收单元1201、发送单元1202和处理单元1203。
一种可能的设计中，处理单元1203用于对定位服务器1200的动作进行控制管理，例如，处理单元1203用于支持定位服务器1200执行图4至图6中的过程S408，和/或用于本文所描述的技术的其它过程。发送单元1202和接收单元1201用于支持定位服务器1200与其他网路实体的通信，例如与如4-图6所示的第一网元和/或终端之间的通信。
可选的，定位服务器1200还可以包括存储单元1204，用于存储定位服务器1200的程序代码和/或数据。具体的，可以参考如下描述：
接收单元1201，用于接收第一网元发送的第二定位请求信息，所述第二定位请求信息携带有所述终端的网络地址；
发送单元1202，用于根据所述第二定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器1200之间的数据连接向所述终端发送测量请求信息，所述测量请求信息用于请求所述终端上报测量数据；
所述接收单元1201，还用于接收所述终端通过所述数据连接上报的测量数据；
处理单元1203，用于根据所述测量数据计算所述终端的第二位置信息。
在一种可能的设计中，所述发送单元1202根据所述定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器1200之间的数据连接向所述终端发送测量请求信息时，可以具体用于：向用户面功能UPF网元发送所述终端的网络地址和所述测量请求信息，以使所述UPF根据所述终端的网络地址，通过所述数据连接将所述测量请求信息转发给所述终端。
在一种可能的设计中，所述发送单元1202还可以用于：若定位请求方为所述终端，则通过网络开放功能NEF网元将所述第二位置信息反馈给所述终端；或者，若定位请求方为有定位需求的外部客户端，则通过业务能力开放功能GMLC网元将所述第二位置信息反馈给所述外部客户端。
应理解，定位服务器1200中的各个模块的操作和/或功能分别为了实现图4到图6所示的基于MEC的定位方法的相应流程，为了简洁，在此不再赘述。
在采用集成的单元(模块)的情况下，图13示出了本申请实施例中适用的另一种定位服务器的结构示意图。如图13所示，定位服务器1300可以包括至少一个处理器1301和存储器1302。所述存储器1302存储一个或多个计算机程序，例如用于存储定位服务器1300必要的一个或多个计算机程序。所述处理器1301用于支持定位服务器1300实现上述基于MEC的定位方法，例如，当所述存储器1302存储的一个或多个计算机程序被所述至少一个处理器1301执行时，使得所述定位服务器1300可以实现图4-图6所示的基于MEC的定位方法的实施例的任意一种可能，和/或用于实现本文所描述的其他实施例。
基于与上述方法实施例相同构思，本申请实施例中还提供一种定位服务器，所述定位服务器包括执行上述基于MEC的定位方法的方法实施例、方法实施例的任意一种可能的实现方式的模块/单元。这些模块/单元可以通过硬件实现，也可以通过硬件执行相应的软件实现。
基于与上述方法实施例相同构思，本申请实施例中还提供一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被计算机上运行时，使得该计算机执行上述基于MEC的定位方法的方法实施例、方法实施例的任意一种可能的实现方式，例如执行图4-图6所示的基于MEC的定位方法的实施例的任意步骤，和/或执行本文所描述的技术的其它过程。
基于与上述方法实施例相同构思，本申请实施例中还提供一种程序产品，当所述程序产品在计算机上运行时，使得该计算机执行上述基于MEC的定位方法的方法实施例、方法实施例的任意一种可能的实现方式，例如执行图4-图6所示的基于MEC的定位方法的实施例的任意步骤，和/或执行本文所描述的技术的其它过程。
基于与上述方法实施例相同构思，本申请实施例中还提供一种芯片，该芯片可以与第一网元、终端或定位服务器中的存储器耦合，用于调用存储器中存储的计算机程序并执行上述基于MEC的定位方法的方法实施例、方法实施例的任意一种可能的实现方式，例如执行图4-图6所示的基于MEC的定位方法的实施例的任意步骤，和/或执行本文所描述的技术的其它过程。
应理解，本申请实施例中的处理器或处理单元(如图8至图13所示的处理器或处理单元)可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述基于MEC的定位方法的方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用中央处理器(central processing unit，CPU)，通用处理器，数字信号处理(digital signal processing，DSP)，专用集成电路(application specific integrated circuits，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合；也可以是实现计算功能的组合，例如包括一个或多个微处理器组合，DSP和微处理器的组合等等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
应理解，本申请实施例中的存储器或存储单元可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本申请描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(application specific integrated circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。 处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于通信设备(如终端、定位服务器、第一网元等)中，例如可以设置于通信设备中的不同的部件中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器等数据存储设备。所述可用介质可以是磁性介质，例如，软盘、硬盘、磁带；也可以是光介质，例如，DVD；还可以是半导体介质，例如，固态硬盘(solid state disk，SSD)。
本申请实施例是参照实施例所涉及的方法、装置、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征对本申请实施例进行了描述，显而易见的，在不脱离本申请实施例的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请实施例的示例性说明，且视为已覆盖本申请实施例范围内的任意和所有修改、变化、组合或等同物。

Claims (37)

  1. 一种基于移动边缘计算MEC的定位方法，其特征在于，包括：
    第一网元接收定位请求方发送的第一定位请求信息，所述第一定位请求信息用于请求对终端进行定位，所述第一定位请求信息中携带所述终端的标识信息；
    所述第一网元根据所述第一定位请求信息，确定对所述终端进行定位的定位功能实体，所述定位功能实体为定位服务器；
    所述第一网元根据所述第一定位请求信息获得第二定位请求信息，将所述第二定位请求信息发送给所述定位服务器，以触发所述定位服务器通过用户面对所述终端进行定位。
  2. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一网元根据所述第一定位请求信息中携带的定位时延要求或者第一指示信息，确定所述定位请求方对时延为高要求。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一网元根据所述第一定位请求信息，确定对所述终端进行定位的定位服务器，包括：
    所述第一网元根据所述终端的标识信息，获取所述终端的第一位置信息，以及获取至少一个定位服务器的配置信息，所述至少一个定位服务器的配置信息包括所述至少一个定位服务器管辖的区域信息；
    所述第一网元根据所述终端的第一位置信息以及所述至少一个定位服务器的配置信息，确定对所述终端进行定位的定位服务器。
  4. 如权利要求3所述的方法，其特征在于，
    所述终端的第一位置信息为目标跟踪区标识TAI信息；
    所述至少一个定位服务器管辖的区域信息为所述至少一个定位服务器管辖的跟踪区标识TAI信息。
  5. 如权利要求1-4任一所述的方法，其特征在于，所述第一网元根据所述第一定位请求信息获得第二定位请求信息，包括：
    所述第一网元根据所述终端的标识信息获取所述终端的网络地址；
    所述第一网元根据所述第一定位请求信息和所述终端的网络地址获得所述第二定位请求信息，其中，所述第二定位请求信息包括所述终端的网络地址。
  6. 如权利要求5所述的方法，其特征在于，所述第一网元根据所述终端的标识信息获取所述终端的网络地址，包括：
    所述第一网元将所述终端的标识信息和所述定位服务器的信息发送给会话管理功能SMF网元；
    所述第一网元获取所述SMF网元发送的所述终端的网络地址。
  7. 如权利要求5所述的方法，其特征在于，所述第一网元根据所述终端的标识信息获取所述终端的网络地址，包括：
    所述第一网元将所述定位服务器的信息发送给所述终端，触发所述终端建立所述终端到所述定位服务器之间的数据连接；
    所述第一网元获取SMF网元发送的所述终端的网络地址，所述网络地址为网络在所述数据连接建立过程中为所述终端分配的。
  8. 如权利要求1-7任一项所述的方法，其特征在于，所述第一网元将所述第二定位请 求信息发送给所述定位服务器，包括：
    所述第一网元通过网络开放功能NEF网元将所述第二定位请求信息，发送给所述定位服务器。
  9. 如权利要求2所述的方法，其特征在于，所述第一网元根据所述第一定位请求信息中携带的定位时延要求，确定所述定位请求方对时延为高要求，包括：
    所述第一网元确定所述定位时延要求小于或者等于预设时长阈值时，确定所述定位请求方对时延为高要求。
  10. 如权利要求2所述的方法，其特征在于，所述第一网元根据所述第一定位请求信息中携带的第一指示信息，确定所述定位请求方对时延为高要求，包括：
    所述第一指示信息指示低时延定位业务，所述第一网元根据所述第一指示信息确定所述定位请求方对时延为高要求。
  11. 如权利要求6或7所述的方法，其特征在于，所述定位服务器的信息为所述定位服务器对应的数据网络名称DNN或者互联网协议IP地址。
  12. 如权利要求1-11任一项所述的方法，其特征在于，所述定位请求方为所述终端或者有定位需求的外部客户端。
  13. 一种基于MEC的定位方法，其特征在于，包括：
    终端接收定位服务器通过所述终端到所述定位服务器之间的数据连接发送的测量请求信息，所述测量请求信息携带有所述终端的网络地址；
    所述终端将测量得到的测量数据通过所述数据连接上报给所述定位服务器，以使所述定位服务器根据所述测量数据计算所述终端的第二位置信息。
  14. 如权利要求13所述的方法，其特征在于，终端接收定位服务器通过所述终端到所述定位服务器之间的数据连接发送的测量请求信息之前，还包括：
    所述终端接收第一网元发送的网络触发信息，所述网络触发信息包括所述定位服务器的信息；
    所述终端根据所述网络触发信息向SMF网元发送建立所述终端到所述定位服务器之间的数据连接的建立请求信息，以建立所述数据连接。
  15. 一种基于MEC的定位方法，其特征在于，包括：
    定位服务器接收第一网元发送的第二定位请求信息，所述第二定位请求信息携带有所述终端的网络地址；
    所述定位服务器根据所述第二定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器之间的数据连接向所述终端发送测量请求信息，所述测量请求信息用于请求所述终端上报测量数据；
    所述定位服务器接收所述终端通过所述数据连接上报的测量数据，根据所述测量数据计算所述终端的第二位置信息。
  16. 如权利要求15所述的方法，其特征在于，所述定位服务器根据所述定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器之间的数据连接向所述终端发送测量请求信息，包括：
    所述定位服务器向用户面功能UPF网元发送所述终端的网络地址和所述测量请求信息，以使所述UPF根据所述终端的网络地址，通过所述数据连接将所述测量请求信息转发给所述终端。
  17. 如权利要求15或16所述的方法，其特征在于，所述方法还包括：
    若定位请求方为所述终端，则所述定位服务器通过网络开放功能NEF网元将所述第二位置信息反馈给所述终端；或者，
    若定位请求方为有定位需求的外部客户端，则所述定位服务器通过业务能力开放功能GMLC网元将所述第二位置信息反馈给所述外部客户端。
  18. 一种第一网元，其特征在于，包括：
    接收单元，用于接收定位请求方发送的第一定位请求信息，所述第一定位请求信息用于请求对终端进行定位，所述第一定位请求信息中携带所述终端的标识信息；
    处理单元，用于据所述第一定位请求信息，确定对所述终端进行定位的定位功能实体，所述定位功能实体为定位服务器；根据所述第一定位请求信息获得第二定位请求信息；
    发送单元，用于将所述第二定位请求信息发送给所述定位服务器，以触发所述定位服务器通过用户面对所述终端进行定位。
  19. 如权利要求18所述的第一网元，其特征在于，所述处理单元还用于：
    根据所述第一定位请求信息中携带的定位时延要求或者第一指示信息，确定所述定位请求方对时延为高要求。
  20. 如权利要求18或19所述的第一网元，其特征在于，所述处理单元根据所述第一定位请求信息，确定对所述终端进行定位的定位服务器时，具体用于：
    根据所述终端的标识信息，获取所述终端的第一位置信息，以及获取至少一个定位服务器的配置信息，所述至少一个定位服务器的配置信息包括所述至少一个定位服务器管辖的区域信息；
    根据所述终端的第一位置信息以及所述至少一个定位服务器的配置信息，确定对所述终端进行定位的定位服务器。
  21. 如权利要求20所述的第一网元，其特征在于，
    所述终端的第一位置信息为目标跟踪区标识TAI信息；
    所述至少一个定位服务器管辖的区域信息为所述至少一个定位服务器管辖的跟踪区标识TAI信息。
  22. 如权利要求18-21任一所述的第一网元，其特征在于，所述接收单元还用于：
    根据所述终端的标识信息获取所述终端的网络地址；
    所述处理单元根据所述第一定位请求信息获得第二定位请求信息时，具体用于：
    根据所述第一定位请求信息和所述终端的网络地址获得所述第二定位请求信息，其中，所述第二定位请求信息包括所述终端的网络地址。
  23. 如权利要求22所述的第一网元，其特征在于，所述发送单元还用于：
    将所述终端的标识信息和所述定位服务器的信息发送给会话管理功能SMF网元；
    所述接收单元根据所述终端的标识信息获取所述终端的网络地址时，具体用于：
    获取所述SMF网元发送的所述终端的网络地址。
  24. 如权利要求22所述的第一网元，其特征在于，所述发送单元还用于：
    将所述定位服务器的信息发送给所述终端，触发所述终端建立所述终端到所述定位服务器之间的数据连接；
    所述接收单元根据所述终端的标识信息获取所述终端的网络地址时，具体用于：
    获取SMF网元发送的所述终端的网络地址，所述网络地址为网络在所述数据连接建立 过程中为所述终端分配的。
  25. 如权利要求18-24任一项所述的第一网元，其特征在于，所述发送单元将所述第二定位请求信息发送给所述定位服务器时，具体用于：
    通过网络开放功能NEF网元将所述第二定位请求信息，发送给所述定位服务器。
  26. 如权利要求19所述的第一网元，其特征在于，所述处理单元根据所述第一定位请求信息中携带的定位时延要求，确定所述定位请求方对时延为高要求时，具体用于：
    确定所述定位时延要求小于或者等于预设时长阈值时，确定所述定位请求方对时延为高要求。
  27. 如权利要求19所述的第一网元，其特征在于，所述处理单元根据所述第一定位请求信息中携带的第一指示信息，确定所述定位请求方对时延为高要求时，具体用于：
    所述第一指示信息指示低时延定位业务，根据所述第一指示信息确定所述定位请求方对时延为高要求。
  28. 如权利要求23或24所述的第一网元，其特征在于，所述定位服务器的信息为所述定位服务器对应的数据网络名称DNN或者互联网协议IP地址。
  29. 如权利要求18-28任一项所述的第一网元，其特征在于，所述定位请求方为所述终端或者有定位需求的外部客户端。
  30. 一种终端，其特征在于，包括：
    接收单元，用于接收定位服务器通过所述终端到所述定位服务器之间的数据连接发送的测量请求信息，所述测量请求信息携带有所述终端的网络地址；
    发送单元，用于将测量得到的测量数据通过所述数据连接上报给所述定位服务器，以使所述定位服务器根据所述测量数据计算所述终端的第二位置信息。
  31. 如权利要求30所述的终端，其特征在于，所述接收单元接收定位服务器通过所述终端到所述定位服务器之间的数据连接发送的测量请求信息之前，还用于：
    接收第一网元发送的网络触发信息，所述网络触发信息包括所述定位服务器的信息；
    所述发送单元，还用于：
    根据所述网络触发信息向SMF网元发送建立所述终端到所述定位服务器之间的数据连接的建立请求信息，以建立所述数据连接。
  32. 一种定位服务器，其特征在于，包括：
    接收单元，用于接收第一网元发送的第二定位请求信息，所述第二定位请求信息携带有所述终端的网络地址；
    发送单元，用于根据所述第二定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器之间的数据连接向所述终端发送测量请求信息，所述测量请求信息用于请求所述终端上报测量数据；
    所述接收单元，还用于接收所述终端通过所述数据连接上报的测量数据；
    处理单元，用于根据所述测量数据计算所述终端的第二位置信息。
  33. 如权利要求32所述的定位服务器，其特征在于，所述发送单元根据所述定位请求信息中携带的所述终端的网络地址，通过所述终端与所述定位服务器之间的数据连接向所述终端发送测量请求信息时，具体用于：
    向用户面功能UPF网元发送所述终端的网络地址和所述测量请求信息，以使所述UPF根据所述终端的网络地址，通过所述数据连接将所述测量请求信息转发给所述终端。
  34. 如权利要求32或33所述的定位服务器，其特征在于，所述发送单元还用于：
    若定位请求方为所述终端，则通过网络开放功能NEF网元将所述第二位置信息反馈给所述终端；或者，
    若定位请求方为有定位需求的外部客户端，则通过业务能力开放功能GMLC网元将所述第二位置信息反馈给所述外部客户端。
  35. 一种通信装置，其特征在于，包括：至少一个处理器和存储器；
    所述存储器存储一个或多个计算机程序；
    当所述存储器存储的一个或多个计算机程序被所述至少一个处理器执行时，使得所述通信装置执行如权利要求1-12任一所述的方法，或者使得所述通信装置执行如权利要求13-14任一所述的方法，或者使得所述通信装置执行如权利要求15-17任一所述的方法。
  36. 一种计算机存储介质，其特征在于，所述计算机可读存储介质包括计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1-12任一所述的方法，或者使得所述计算机执行如权利要求13-14任一所述的方法，或者使得所述计算机执行如权利要求15-17任一所述的方法。
  37. 一种无线通信系统，其特征在于，所述无线通信系统包括如权利要求18-29任一项所述第一网元和如权利要求32-34任一项所述的定位服务器。
PCT/CN2020/087334 2020-04-27 2020-04-27 基于mec的定位方法、设备及无线通信系统 WO2021217377A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202080100134.4A CN115443664A (zh) 2020-04-27 2020-04-27 基于mec的定位方法、设备及无线通信系统
PCT/CN2020/087334 WO2021217377A1 (zh) 2020-04-27 2020-04-27 基于mec的定位方法、设备及无线通信系统
EP20933381.4A EP4135351A4 (en) 2020-04-27 2020-04-27 METHOD AND DEVICE FOR MEC BASED LOCATION AND WIRELESS COMMUNICATION SYSTEM
US17/973,735 US20230040349A1 (en) 2020-04-27 2022-10-26 Mec-based positioning method, device, and wireless communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/087334 WO2021217377A1 (zh) 2020-04-27 2020-04-27 基于mec的定位方法、设备及无线通信系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/973,735 Continuation US20230040349A1 (en) 2020-04-27 2022-10-26 Mec-based positioning method, device, and wireless communication system

Publications (1)

Publication Number Publication Date
WO2021217377A1 true WO2021217377A1 (zh) 2021-11-04

Family

ID=78373875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/087334 WO2021217377A1 (zh) 2020-04-27 2020-04-27 基于mec的定位方法、设备及无线通信系统

Country Status (4)

Country Link
US (1) US20230040349A1 (zh)
EP (1) EP4135351A4 (zh)
CN (1) CN115443664A (zh)
WO (1) WO2021217377A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023160626A1 (zh) * 2022-02-28 2023-08-31 华为技术有限公司 一种通信方法及装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113905435A (zh) * 2020-06-22 2022-01-07 中兴通讯股份有限公司 定位方法及装置、计算机可读存储介质
WO2024130512A1 (zh) * 2022-12-19 2024-06-27 北京小米移动软件有限公司 定位方法、装置、通信设备和存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107205269A (zh) * 2012-04-27 2017-09-26 华为技术有限公司 定位终端的方法、装置和系统
WO2018093380A1 (en) * 2016-11-18 2018-05-24 Nokia Technologies Oy User location monitoring in mobile edge environment
CN110291798A (zh) * 2016-12-09 2019-09-27 诺基亚技术有限公司 位置相关应用管理
CN111052849A (zh) * 2017-09-28 2020-04-21 中兴通讯股份有限公司 移动网络交互代理

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455135C (zh) * 2006-03-08 2009-01-21 华为技术有限公司 一种移动终端定位方法及系统
TWI796998B (zh) * 2017-08-14 2023-03-21 美商高通公司 用於使用基於服務的介面的５ｇ位置支援的系統和方法
CN110351828B (zh) * 2018-04-04 2021-02-09 华为技术有限公司 一种定位方法及装置
US11388657B2 (en) * 2018-08-13 2022-07-12 Qualcomm Incorporated Methods and systems for supporting unified location of a mobile device in a 5G network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107205269A (zh) * 2012-04-27 2017-09-26 华为技术有限公司 定位终端的方法、装置和系统
WO2018093380A1 (en) * 2016-11-18 2018-05-24 Nokia Technologies Oy User location monitoring in mobile edge environment
CN110291798A (zh) * 2016-12-09 2019-09-27 诺基亚技术有限公司 位置相关应用管理
CN111052849A (zh) * 2017-09-28 2020-04-21 中兴通讯股份有限公司 移动网络交互代理

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Multi-access Edge Computing (MEC); Location API", ETSI GS MEC 013 V2.1.1, no. V2.1.1, 30 September 2019 (2019-09-30), pages 1 - 39, XP055861604 *
See also references of EP4135351A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023160626A1 (zh) * 2022-02-28 2023-08-31 华为技术有限公司 一种通信方法及装置

Also Published As

Publication number Publication date
CN115443664A (zh) 2022-12-06
EP4135351A1 (en) 2023-02-15
US20230040349A1 (en) 2023-02-09
EP4135351A4 (en) 2023-05-31

Similar Documents

Publication Publication Date Title
US20210194740A1 (en) Channel access related enhancements to new radio unlicensed (nr-u)
WO2021217377A1 (zh) 基于mec的定位方法、设备及无线通信系统
US11956038B2 (en) Discriminating beams based upon position quality metric for UE localization
US20240205817A1 (en) Method for selecting network element in communication sensing service, communication apparatus, and communication system
US9585160B2 (en) Prioritizing location request of a certain type in a congestion situation
US20220338106A1 (en) Slice control method and apparatus
US20220408445A1 (en) Link adaptation for 5g systems
WO2021104025A1 (zh) 信息传输方法及装置
WO2021218888A1 (zh) 通信方法和装置
WO2021223673A1 (zh) 一种数据传输方法及装置
US20240187176A1 (en) Sounding reference signal configuration for antenna switching and carrier switching
WO2022031849A1 (en) Mechanisms for non-terrestrial networks in new radio
KR20230035415A (ko) 포지셔닝을 위한 측정 방법, 장치 및 저장 매체
WO2022032192A1 (en) Mechanisms for performing positioning measurements in 5g networks
WO2017193286A1 (zh) 移动性管理方法和装置
US20240244107A1 (en) Method for determining application server
US10616856B2 (en) Methods and arrangements for supporting positioning of a wireless device in a wireless communication network
US20230308833A1 (en) User equipment positioning method and apparatus
US20230345543A1 (en) Release-18 (rel-18) support of two timing advances (tas) for single cell
WO2023207342A1 (zh) 一种通信方法及相关装置
US20240188005A1 (en) Methods and apparatus for power headroom reporting for multiple transmission reception point (multi-trp) transmissions
WO2022110209A1 (zh) 定位方法、通信装置及通信系统
WO2021062831A1 (zh) 基于前导码的定位方法和设备
WO2023045741A1 (zh) 定位方法及装置、可读存储介质
US20230232366A1 (en) Method for performing data transmission by two terminal devices and apparatus

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20933381

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020933381

Country of ref document: EP

Effective date: 20221107

NENP Non-entry into the national phase

Ref country code: DE