WO2022061928A1 - 一种网络选择方法、电子设备及存储介质 - Google Patents

一种网络选择方法、电子设备及存储介质 Download PDF

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Publication number
WO2022061928A1
WO2022061928A1 PCT/CN2020/118556 CN2020118556W WO2022061928A1 WO 2022061928 A1 WO2022061928 A1 WO 2022061928A1 CN 2020118556 W CN2020118556 W CN 2020118556W WO 2022061928 A1 WO2022061928 A1 WO 2022061928A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
information
network element
core network
network
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/118556
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English (en)
French (fr)
Inventor
卢飞
刘建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2020/118556 priority Critical patent/WO2022061928A1/zh
Priority to EP20954775.1A priority patent/EP4178247B1/en
Priority to CN202080100458.8A priority patent/CN115486111A/zh
Priority to CN202310334093.0A priority patent/CN116347592B/zh
Priority to KR1020237006571A priority patent/KR20230074708A/ko
Priority to JP2023512015A priority patent/JP2023548729A/ja
Publication of WO2022061928A1 publication Critical patent/WO2022061928A1/zh
Priority to US18/145,921 priority patent/US20230199691A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/02—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration by periodical registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005—Multiple registrations, e.g. multihoming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/06—De-registration or detaching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a network selection method, an electronic device, and a storage medium.
  • NR New Radio
  • Embodiments of the present application provide a network selection method, an electronic device, and a storage medium, so that a terminal device can quickly register with an available network.
  • an embodiment of the present application provides a network selection method, including: after a terminal device initiates a registration process for a first network, receiving first information sent by a core network element; the first information includes: the terminal device Information about the region to which the device belongs;
  • the terminal device determines a target network based on the first information.
  • an embodiment of the present application provides a network selection method, including: in the case that a first network requested by a terminal device for registration cannot provide services for the terminal device, a core network network element sends a first network to the terminal device. information;
  • the first information includes area information to which the terminal device belongs, and the first information is used for the terminal device to register with a target network.
  • an embodiment of the present application provides a terminal device, where the terminal device includes:
  • a first receiving unit configured to receive first information sent by a core network element; the first information includes: area information to which the terminal device belongs;
  • a first processing unit configured to determine a target network based on the first information.
  • an embodiment of the present application provides a core network element, where the core network element includes:
  • a sending unit configured to send first information to the terminal device when the first network that the terminal device requests to register cannot provide services for the terminal device
  • the first information includes area information to which the terminal device belongs, and the first information is used for the terminal device to register with a target network.
  • an embodiment of the present application provides a terminal device, including a processor and a memory for storing a computer program that can be executed on the processor, wherein the processor is configured to execute the above-mentioned terminal when the computer program is executed. The steps of the network selection method performed by the device.
  • an embodiment of the present application provides a core network element, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the computer program when running the computer program.
  • the steps of the network selection method performed by the network element of the core network.
  • an embodiment of the present application provides a chip, including: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the network selection method performed by the terminal device.
  • an embodiment of the present application provides a chip, including: a processor for invoking and running a computer program from a memory, so that a device installed with the chip executes the above-mentioned network selection method performed by a core network element.
  • an embodiment of the present application provides a storage medium storing an executable program, and when the executable program is executed by a processor, the above-mentioned network selection method executed by a terminal device is implemented.
  • an embodiment of the present application provides a storage medium storing an executable program, and when the executable program is executed by a processor, the above-mentioned network selection method executed by a core network element is implemented.
  • an embodiment of the present application provides a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the network selection method executed by the terminal device.
  • an embodiment of the present application provides a computer program product, including computer program instructions, the computer program instructions causing a computer to execute the above-mentioned network selection method performed by a core network element.
  • an embodiment of the present application provides a computer program, the computer program enables a computer to execute the network selection method executed by the terminal device.
  • an embodiment of the present application provides a computer program, where the computer program enables a computer to execute the above-mentioned network selection method performed by a core network element.
  • the network selection method, electronic device, and storage medium provided by the embodiments of the present application include: after a terminal device initiates a registration process for a first network, receiving first information sent by a core network element; the first information includes: the area information to which the terminal device belongs; the terminal device determines the target network based on the first information.
  • the core network element can send the first information to the terminal device, so that the terminal device can quickly determine the target network and register the target network.
  • FIG. 1 is a schematic flowchart of network registration according to an embodiment of the present application
  • FIG. 2 is an architectural diagram of a location service in a 5G network according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of determining the location information of a terminal device based on a location service according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of satellite network coverage according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the composition and structure of a communication system according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a processing flow of a network selection method performed by a terminal device according to an embodiment of the present application
  • FIG. 7 is a schematic process flow diagram of a network selection method performed by a core network network element according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a detailed processing flow of a network selection method according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another detailed processing flow of the network selection method according to the embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an optional composition of a terminal device according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of an optional composition structure of a core network network element according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a hardware composition of an electronic device according to an embodiment of the present application.
  • Non-terrestrial communication network provides communication services to terrestrial users by means of satellite communication.
  • satellite communication Compared with terrestrial cellular network communication, satellite communication has many unique advantages.
  • satellite communication is not limited by the user's geographical area.
  • general terrestrial communication cannot cover areas such as oceans, mountains, or deserts that cannot be equipped with communication equipment or cannot be covered due to sparse population.
  • satellite communication due to a A satellite can cover a large area of the ground, and the satellite can orbit around the earth, so theoretically every corner of the earth can be covered by satellite communications.
  • satellite communication has high social value.
  • Satellite communications can be covered at low cost in remote mountainous areas and poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technologies, which is conducive to narrowing the digital divide with developed regions and promoting development in these areas.
  • the satellite communication distance is long, and the increase of the communication distance will not significantly increase the cost of communication; finally, the satellite communication has high stability and is not limited by natural disasters.
  • LEO Low-Earth Orbit
  • MEO Medium-Earth Orbit
  • GEO Geostationary Earth Orbit
  • HEO High Elliptical Orbit
  • the orbital altitude of LEO ranges from 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between terminal devices is generally less than 20ms.
  • the maximum satellite viewing time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the transmission power requirements of the terminal equipment are not high.
  • GEO Globalstar orbits at an altitude of 35,786 km and revolves around the Earth for a period of 24 hours.
  • the signal propagation delay of single-hop communication between terminal devices is generally 250ms.
  • satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.
  • a schematic diagram of the network registration process includes:
  • Step 1 the terminal device initiates a registration process, and the terminal device sends a registration request to a radio access network (Radio Access Network, RAN) in a radio resource control (Radio Resource Control RRC) establishment completion message.
  • RAN Radio Access Network
  • RRC Radio Resource Control
  • Step 2 the RAN sends an initial terminal equipment message to the Access and Mobility Management Function (AMF) entity, and the initial terminal equipment message carries a registration request message and carries the location information of the terminal equipment; wherein, the terminal equipment
  • the location information may include Tracking Area Identity (TAI) and Cell Global Identifier (CGI).
  • TAI Tracking Area Identity
  • CGI Cell Global Identifier
  • Step 3 the AMF entity accepts the registration process, and sends a registration acceptance message to the terminal device, and the registration acceptance message is carried in a downlink non-access-stratum (Non-Access-Stratum, NAS) transmission message.
  • the AMF entity carries the 5G Globally Unique Temporary UE Identity (5G-GUTI) in the registration acceptance message.
  • 5G-GUTI 5G Globally Unique Temporary UE Identity
  • Step 4 the RAN sends a downlink NAS transmission message to the terminal equipment, and the downlink NAS transmission message carries a registration acceptance message.
  • Step 5 after the terminal device receives the registration acceptance message, the terminal device returns a registration complete message to the AMF entity, which is used to confirm that the 5G-GUTI has taken effect.
  • the AMF entity can learn the location information of the terminal device through the TAI or CGI in the initial terminal device message in step 2.
  • the architecture diagram of the location service in the 5G network is shown in Figure 2.
  • the LMF entity obtains the location information of the terminal device, which specifically includes: the LMF entity obtains the location information of the terminal device from the AMF entity (mainly referring to TAI or CGI), or the LMF entity obtains the location information from the terminal device; when the external LCS client needs to obtain the location information of the terminal device through the 3GPP network, the LCS client can request the GMLC to obtain the location information of the terminal device, and the GMLC obtains the location information of the terminal device from the AMF.
  • the entity obtains the location information of the terminal device, and the AMF entity sends the location information obtained from the LMF to the LCS client through the GMLC.
  • the location information of the terminal device is determined based on the Location Service (LCS) after the registration is completed, as shown in Figure 3, including:
  • LCS Location Service
  • Step 1 the terminal device initiates a registration process, and the registration request message carries the user ID and the registration type; the AMF entity carries the 5G-GUTI and the registration area in the registration acceptance message.
  • the registration process initiated by the terminal device includes steps 1 to 5 shown in FIG. 1 .
  • Step 2 the location management function entity (Location Management Function, LMF) sends a Namf_Communication_N1N2MessageTransfer message to the AMF entity, the message carries the ID associated with the LCS, and the downlink (DownLink, DL) positioning container (container), wherein the DL positioning container can be used to carry the positioning Supplementary information.
  • LMF Location Management Function
  • Step 3 the AMF entity sends a downlink NAS transfer message (DL NAS TRANSPORT) to the terminal device, and the downlink NAS transfer message also carries a DL positioning container.
  • DL NAS TRANSPORT downlink NAS transfer message
  • Step 4 the terminal device calculates the position of the terminal device according to the bit positioning assistance information in step 2.
  • Step 5 the terminal equipment returns an uplink NAS transfer message (UL NAS TRANSPORT) to the AMF entity, and the uplink NAS transfer message carries an uplink (UpLink, UL) positioning container, and the UL positioning container is used to carry the location information of the terminal equipment;
  • UL NAS TRANSPORT uplink NAS transfer message
  • UpLink, UL uplink
  • Step 6 the AMF entity triggers the Namf_Communication_N1MessageNotify message, and the Namf_Communication_N1MessageNotify message carries the UL positioning container.
  • Step 7 the LMF entity returns an Nlmf_Location_DetermineLocation message to the AMF entity, and the Nlmf_Location_DetermineLocation message carries the current location information of the terminal device.
  • a satellite network can cover multiple countries. As shown in Figure 4, the network corresponding to satellite 1 can cover countries 1 and 2, and the network corresponding to satellite 2 only covers country 1.
  • the terminal equipment is in country 1, the terminal equipment is in the coverage area of satellite 1 and satellite 2; however, there is a scenario that satellite 1 does not have a ground receiving station in country 1 to provide services for the terminal equipment. In this scenario, If the terminal equipment selects the core network of country 1, it does not meet the policy supervision and legal interception requirements (if the terminal equipment is located in which country, the core network (such as the AMF entity) selected by the terminal equipment should be located in which country).
  • the terminal equipment cannot access the correct network in time. For example, the terminal equipment cannot access the correct network in time. Satellite Public Land Mobile Network (PLMN).
  • PLMN Satellite Public Land Mobile Network
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD Time division duplex
  • LTE-A advanced long term evolution
  • NR new radio
  • evolution systems of NR systems LTE on unlicensed bands (LTE-based access to unlicensed spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed frequency bands, universal mobile telecommunication system (UMTS), global Worldwide interoperability for microwave access (WiMAX) communication systems, wireless local area networks (WLAN), wireless fidelity (WiFi), next-generation communication systems or other communication systems, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • the network equipment involved in the embodiments of this application may be a common base station (such as a NodeB or eNB or gNB), a new radio controller (NR controller), a centralized network element (centralized unit), a new radio base station, Remote radio module, micro base station, relay, distributed unit (distributed unit), reception point (transmission reception point, TRP), transmission point (transmission point, TP) or any other equipment.
  • a common base station such as a NodeB or eNB or gNB
  • NR controller new radio controller
  • a centralized network element centralized unit
  • a new radio base station Remote radio module
  • micro base station relay, distributed unit (distributed unit)
  • reception point transmission reception point
  • TRP transmission point
  • TP transmission point
  • the terminal device may be any terminal, for example, the terminal device may be user equipment of machine type communication. That is to say, the terminal device can also be called user equipment UE, mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), etc. network, RAN) communicates with one or more core networks, for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the terminal device can also be a portable, pocket-sized , handheld, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network.
  • the terminal device may be any terminal, for example, the terminal device may be user equipment of machine type communication. That is to say, the terminal device can also be called user equipment UE, mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), etc. network, RAN) communicates with one or more core networks, for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc
  • network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the network device and the terminal device.
  • communication between the network device and the terminal device and between the terminal device and the terminal device can be performed through licensed spectrum (licensed spectrum), or through unlicensed spectrum (unlicensed spectrum), or both through licensed spectrum and unlicensed spectrum for communications.
  • Communication between network equipment and terminal equipment and between terminal equipment and terminal equipment can be carried out through the spectrum below 7 gigahertz (GHz), or through the frequency spectrum above 7 GHz, and can also use the frequency spectrum below 7 GHz and the frequency spectrum at the same time.
  • the spectrum above 7GHz is used for communication.
  • the embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, relay station, access point, in-vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolved Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • CRAN Cloud Radio Access Network
  • the network device can be a mobile switching center, relay station, access point, in-vehicle equipment, Wearable devices, hub
  • the communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110 .
  • terminal equipment includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM- An FM broadcast transmitter; and/or a device of another terminal device configured to receive/transmit communication signals; and/or an Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN Wireless Local Area Networks
  • DVB-H Digital Video Broadband
  • satellite networks satellite networks
  • AM- An FM broadcast transmitter AM- An FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device arranged to communicate via a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal” or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or in future evolved PLMNs, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal (Device to Device, D2D) communication may be performed between the terminal devices 120 .
  • the 5G system or 5G network may also be referred to as a new radio (New Radio, NR) system or NR network.
  • New Radio NR
  • FIG. 5 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices.
  • the present application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • An optional processing flow of the network selection method applied to a terminal device provided by the embodiment of the present application, as shown in FIG. 6 includes at least the following steps:
  • Step S201 after the terminal device initiates the registration process for the first network, it receives the first information sent by the core network element.
  • the first information includes: area information to which the terminal device belongs.
  • the area information to which the terminal device belongs may be a mobile country code (Mobile Country Code, MCC); the area information to which the terminal device belongs may also be an MCC and a mobile network code (Mobile Network Code, MNC).
  • MCC Mobile Country Code
  • MNC Mobile Network Code
  • the terminal device initiates a registration process for the first network, including:
  • the terminal device sends a registration request message to the core network element, where the registration request message is used to request to register the first network; the terminal device sends the location information of the terminal device to the core network element .
  • the location information of the terminal device may be the actual physical address of the terminal device.
  • the core network element determines, according to the location information of the terminal device, that the first network that the terminal device requests for registration cannot After serving the terminal device, the core network element sends the first information including at least the MCC to the terminal device.
  • the first network cannot serve the terminal device, and it may be that the satellite corresponding to the first network does not have a ground receiving station in the country to which the terminal device belongs to provide services for the terminal device.
  • the first information is carried in a deregistration request (Deregistration Request) message.
  • the terminal device may also send a Deregistration Accept (Deregistration Accept) message to the core network element.
  • Deregistration Accept Deregistration Accept
  • the first information is carried in a terminal equipment configuration command (UE CONFIGURATION COMMAND) message.
  • UE CONFIGURATION COMMAND terminal equipment configuration command
  • the terminal device may also send a terminal device configuration complete (UE CONFIGURATION COMPLETE) message to the core network element.
  • UE CONFIGURATION COMPLETE terminal device configuration complete
  • Step S202 the terminal device determines the target network based on the first information.
  • the terminal device re-determines the target network to be registered according to the MCC.
  • the terminal device re-determines the target network to be registered according to the MCC and the MNC.
  • the target network to be registered is a network that can provide services for terminal equipment, such as a PLMN of a satellite network.
  • the network selection method may further include:
  • Step S203 the terminal device registers the target network.
  • a registration process is initiated for the target network.
  • An optional processing flow of the network selection method applied to the core network element provided by the embodiment of the present application, as shown in FIG. 7 includes at least the following steps:
  • Step S301 in the case that the first network that the terminal device requests to register cannot provide services for the terminal device, the core network element sends the first information to the terminal device.
  • the core network element determines that the first network cannot provide services for the terminal device according to the location information of the terminal device, and the core network element sends the first network to the terminal device.
  • the first information includes area information to which the terminal device belongs, and the first information is used for the terminal device to register a target network.
  • the first network cannot serve the terminal device, and it may be that the satellite corresponding to the first network does not have a ground receiving station in the country to which the terminal device belongs to provide services for the terminal device.
  • the first information includes: area information to which the terminal device belongs.
  • the area information to which the terminal device belongs may be MCC; the area information to which the terminal device belongs may also be MCC and MNC.
  • the first information is carried in a Deregistration Request message.
  • the core network element may also receive a Deregistration Accept (Deregistration Accept) message sent by the terminal device.
  • Deregistration Accept Deregistration Accept
  • the first information is carried in a UE CONFIGURATION COMMAND message.
  • the core network element may also receive a terminal device configuration complete (UE CONFIGURATION COMPLETE) message sent by the terminal device.
  • UE CONFIGURATION COMPLETE terminal device configuration complete
  • the method may further include:
  • Step S302 the core network element receives a registration request message sent by the terminal device, where the registration request message is used by the terminal device to request to register the target network.
  • the target network may include: a satellite PLMN.
  • the network element of the core network may be an AMF entity.
  • a detailed optional processing flow of the network selection method provided by the embodiment of the present application, as shown in FIG. 8 includes at least the following steps:
  • Step S401 the terminal device initiates a registration process for the first network.
  • the terminal device sends a registration request message to the AMF entity, and the registration request message carries the user ID and registration type; the AMF entity sends a registration accept message to the terminal device, and the registration accept message carries the 5G-GUTI and the registration area. .
  • Step S402 the location function management LMF entity sends a Namf_Communication_N1N2MessageTransfer message to the AMF entity;
  • the Namf_Communication_N1N2MessageTransfer message carries a location service (Location Service, LCS) association ID and a DL positioning container; wherein, the DL positioning container can be used to carry positioning assistance information.
  • LCS Location Service
  • Step S403 the AMF entity sends a DL NAS TRANSPORT downlink NAS transfer message to the terminal device.
  • the DL NAS TRANSPORT downlink NAS transfer message carries the DL positioning container.
  • Step S404 the terminal device calculates the location information of the terminal device according to the positioning assistance information.
  • the location information of the terminal device may be the actual physical location of the terminal device.
  • Step S405 the terminal device returns the UL NAS TRANSPORT uplink NAS transfer message to the AMF entity.
  • the UL NAS TRANSPORT uplink NAS transfer message carries the UL positioning container, and the UL positioning container is used to carry the location information of the terminal device.
  • Step S406 the AMF entity triggers the Namf_Communication_N1MessageNotify message.
  • the Namf_Communication_N1MessageNotify message carries the UL positioning container.
  • Step S407 the LMF entity returns an Nlmf_Location_DetermineLocation message to the AMF entity.
  • the Nlmf_Location_DetermineLocation message carries the location information of the terminal device.
  • the LMF entity parses the location information in the UL positioning container to obtain the location information of the terminal device, and sends the location information of the terminal device to the AMF entity through the Nlmf_Location_DetermineLocation message.
  • Step S408 the AMF entity confirms that the terminal device has not selected the correct satellite PLMN according to the location information of the terminal device, and the AMF entity initiates a Deregistration process and sends a Deregistration Request message to the terminal device.
  • the terminal device does not select the correct satellite PLMN, it may be that the satellite does not have a ground receiving station in the country to which the terminal device belongs to provide services for the terminal device.
  • the Deregistration Request message carries the MCC, or the Deregistration Request message carries the MCC and the MNC.
  • Step S409 the terminal device returns a Deregistration Accept message to the AMF entity.
  • Step S410 the terminal device selects the satellite PLMN according to the MCC, or according to the MCC and the MNC.
  • a detailed optional processing flow of the network selection method provided by the embodiment of the present application, as shown in FIG. 9 includes at least the following steps:
  • Step S501 the terminal device initiates a registration process for the first network.
  • the terminal device sends a registration request message to the AMF entity, and the registration request message carries the user ID and registration type; the AMF entity sends a registration accept message to the terminal device, and the registration accept message carries the 5G-GUTI and the registration area. .
  • Step S502 the location function management LMF entity sends a Namf_Communication_N1N2MessageTransfer message to the AMF entity; the Namf_Communication_N1N2MessageTransfer message carries the LCS association ID and the DL positioning container; wherein, the DL positioning container can be used to carry positioning assistance information.
  • Step S503 the AMF entity sends a DL NAS TRANSPORT downlink NAS transfer message to the terminal device.
  • the DL NAS TRANSPORT downlink NAS transfer message carries the DL positioning container.
  • Step S504 the terminal device calculates the location information of the terminal device according to the positioning assistance information.
  • the location information of the terminal device may be the actual physical location of the terminal device.
  • Step S505 the terminal device returns the UL NAS TRANSPORT uplink NAS transfer message to the AMF entity.
  • the UL NAS TRANSPORT uplink NAS transfer message carries the UL positioning container, and the UL positioning container is used to carry the location information of the terminal device.
  • Step S506 the AMF entity triggers the Namf_Communication_N1MessageNotify message.
  • the Namf_Communication_N1MessageNotify message carries the UL positioning container.
  • Step S507 the LMF entity returns an Nlmf_Location_DetermineLocation message to the AMF entity.
  • the Nlmf_Location_DetermineLocation message carries the location information of the terminal device.
  • the LMF entity parses the location information in the UL positioning container to obtain the location information of the terminal device, and sends the location information of the terminal device to the AMF entity through the Nlmf_Location_DetermineLocation message.
  • Step S508 the AMF entity confirms that the terminal device does not select the correct satellite PLMN according to the location information of the terminal device, and the AMF entity sends a UE CONFIGURATION COMMAND message to the terminal device.
  • the MCC is carried in the UE CONFIGURATION COMMAND message, or the MCC and the MNC are carried in the UE CONFIGURATION COMMAND message.
  • the terminal device does not select the correct satellite PLMN, it may be that the satellite does not have a ground receiving station in the country to which the terminal device belongs to provide services for the terminal device.
  • Step S509 the terminal device returns a UE CONFIGURATION COMPLETE message to the AMF entity.
  • Step S510 the terminal device selects the satellite PLMN according to the MCC, or according to the MCC and the MNC.
  • a core network element such as an AMF entity
  • the core network element sends the MCC, or sends the MCC and MNC to the terminal device through the UE CONFIGURATION COMMAND message or the Deregistration Request message, so that the terminal device can be based on the MCC or according to the MCC.
  • an embodiment of the present application further provides a terminal device.
  • An optional structural schematic diagram of the terminal device 600, as shown in FIG. 10 includes:
  • the first receiving unit 601 is configured to receive first information sent by a core network element; the first information includes: area information to which the terminal device belongs;
  • the first processing unit 602 is configured to determine a target network based on the first information.
  • the area information to which the terminal device belongs includes: MCC.
  • the first information further includes: MNC.
  • the first information is carried in a deregistration request message.
  • the terminal device 600 further includes: a first sending unit 603 configured to send a de-registration accept message.
  • the first information is carried in a terminal device configuration command message.
  • the terminal device 600 further includes:
  • the second sending unit 604 is configured to send a terminal device configuration complete message.
  • the first processing unit 601 is configured to send a registration request message to the core network element, where the registration request message is used to request to register the first network;
  • the first processing unit 601 is further configured to register the target network.
  • the target network includes: a satellite PLMN.
  • the core network element includes: an AMF entity.
  • an embodiment of the present application further provides a core network element.
  • Another optional structural schematic diagram of the core network element 800 as shown in FIG. 11 , includes:
  • a third sending unit 801 configured to send first information to the terminal device when the first network requested by the terminal device to register cannot provide services for the terminal device;
  • the first information includes area information to which the terminal device belongs, and the first information is used for the terminal device to register with a target network.
  • the area information to which the terminal device belongs includes: MCC.
  • the first information further includes: MNC.
  • the first information is carried in a deregistration request message.
  • the core network element 800 further includes: a second receiving unit 802, configured to receive a deregistration acceptance message.
  • the first information is carried in a terminal device configuration command message.
  • the core network element 800 further includes:
  • the third receiving unit 803 is configured to receive a terminal device configuration complete message.
  • the core network element 800 further includes:
  • the second processing unit 804 is configured to determine, based on the location information of the terminal device, that the first network cannot serve the terminal device.
  • the core network element 800 further includes:
  • the fourth receiving unit 805 is configured to receive a registration request message sent by the terminal device, where the registration request message is used by the terminal device to request to register the target network.
  • the target network includes: a satellite PLMN.
  • the core network element 800 includes: an AMF entity.
  • An embodiment of the present application further provides a terminal device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the program executed by the terminal device when the processor is running the computer program. Steps for network selection method.
  • An embodiment of the present application further provides a core network element, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the above-mentioned core network when running the computer program.
  • the steps of the network selection method performed by the network element are not limited to a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the above-mentioned core network when running the computer program.
  • An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device on which the chip is installed executes the network selection method performed by the terminal device.
  • An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the above-mentioned network selection method performed by a core network element.
  • An embodiment of the present application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the above-mentioned network selection method executed by a terminal device is implemented.
  • the embodiment of the application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the above-mentioned network selection method performed by a core network element is implemented.
  • Embodiments of the present application further provide a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the network selection method executed by the terminal device.
  • Embodiments of the present application further provide a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the above-mentioned network selection method performed by a core network element.
  • the embodiment of the present application further provides a computer program, the computer program enables the computer to execute the network selection method executed by the terminal device.
  • the embodiment of the present application further provides a computer program, the computer program enables the computer to execute the network selection method performed by the above-mentioned core network element.
  • the electronic device 700 includes: at least one processor 701 , memory 702 and at least one network interface 704 .
  • the various components in electronic device 700 are coupled together by bus system 705 .
  • bus system 705 is used to implement the connection communication between these components.
  • the bus system 705 also includes a power bus, a control bus and a status signal bus.
  • the various buses are labeled as bus system 705 in FIG. 12 .
  • memory 702 may be either volatile memory or non-volatile memory, and may include both volatile and non-volatile memory.
  • the non-volatile memory can be ROM, Programmable Read-Only Memory (PROM, Programmable Read-Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read-Only Memory), Electrically Erasable Programmable Read-Only Memory Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM -ROM, Compact Disc Read-Only Memory); magnetic surface memory can be disk memory or tape memory.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Type Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.
  • the memory 702 in this embodiment of the present application is used to store various types of data to support the operation of the electronic device 700 .
  • Examples of such data include: any computer program used to operate on electronic device 700, such as application 7022.
  • the program for implementing the method of the embodiment of the present application may be included in the application program 7022 .
  • the methods disclosed in the above embodiments of the present application may be applied to the processor 701 or implemented by the processor 701 .
  • the processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software.
  • the above-mentioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the processor 701 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the foregoing method in combination with its hardware.
  • the electronic device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs) , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic component implementation for performing the aforementioned method.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal processors
  • PLDs Programmable Logic Devices
  • CPLDs Complex Programmable Logic Devices
  • FPGA general-purpose processor
  • controller MCU, MPU, or other electronic component implementation for performing the aforementioned method.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请公开了一种网络选择方法，包括：终端设备发起针对第一网络的注册流程之后，接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；所述终端设备基于所述第一信息确定目标网络。本申请还公开了另一种网络选择方法、电子设备及存储介质。

Description

一种网络选择方法、电子设备及存储介质 技术领域
本申请涉及无线通信技术领域，尤其涉及一种网络选择方法、电子设备及存储介质。
背景技术
在新无线(New Radio，NR)系统中，终端设备(User Equipment，UE)在注册网络后，可能存在终端设备注册的网络不能够为终端设备提供服务的情况；因此，终端设备如何快速地注册到可用网络是一直追求的目标。
发明内容
本申请实施例提供一种网络选择方法、电子设备及存储介质，使得终端设备能够快速地注册到可用的网络。
第一方面，本申请实施例提供一种网络选择方法，包括：终端设备发起针对第一网络的注册流程之后，接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；
所述终端设备基于所述第一信息确定目标网络。
第二方面，本申请实施例提供一种网络选择方法，包括：在终端设备请求注册的第一网络不能为所述终端设备提供服务的情况下，核心网网元向所述终端设备发送第一信息；
所述第一信息包括所述终端设备所属的区域信息，所述第一信息用于所述终端设备注册目标网络。
第三方面，本申请实施例提供一种终端设备，所述终端设备包括：
第一接收单元，配置为接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；
第一处理单元，配置为基于所述第一信息确定目标网络。
第四方面，本申请实施例提供一种核心网网元，所述核心网网元包括：
发送单元，配置为在终端设备请求注册的第一网络不能为所述终端设备提供服务的情况下，向所述终端设备发送第一信息；
所述第一信息包括所述终端设备所属的区域信息，所述第一信息用于所述终端设备注册目标网络。
第五方面，本申请实施例提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的网络选择方法的步骤。
第六方面，本申请实施例提供一种核心网网元，包括处理器和用于存储能够在处理 器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述核心网网元执行的网络选择方法的步骤。
第七方面，本申请实施例提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行上述终端设备执行的网络选择方法。
第八方面，本申请实施例提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行上述核心网网元执行的网络选择方法。
第九方面，本申请实施例提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述终端设备执行的网络选择方法。
第十方面，本申请实施例提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述核心网网元执行的网络选择方法。
第十一方面，本申请实施例提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述终端设备执行的网络选择方法。
第十二方面，本申请实施例提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述核心网网元执行的网络选择方法。
第十三方面，本申请实施例提供一种计算机程序，所述计算机程序使得计算机执行上述终端设备执行的网络选择方法。
第十四方面，本申请实施例提供一种计算机程序，所述计算机程序使得计算机执行上述核心网网元执行的网络选择方法。
本申请实施例提供的网络选择方法、电子设备及存储介质，包括：终端设备发起针对第一网络的注册流程之后，接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；所述终端设备基于所述第一信息确定目标网络。如此，使得终端设备请求注册的第一网络不能够为终端设备服务的情况下，核心网网元能够向终端设备发送第一信息，使得终端设备能够快速地确定目标网络，并注册目标网络。
附图说明
图1为本申请实施例网络注册的流程示意图；
图2为本申请实施例5G网络中位置服务的架构图；
图3为本申请实施例基于位置服务确定终端设备位置信息的示意图；
图4为本申请实施例卫星网络覆盖示意图；
图5为本申请实施例通信系统的组成结构示意图；
图6为本申请实施例终端设备执行的网络选择方法的处理流程示意图；
图7为本申请实施例核心网网元执行的网络选择方法的处理流程示意图；
图8为本申请实施例网络选择方法的一种详细处理流程示意图；
图9为本申请实施例网络选择方法的另一种详细处理流程示意图；
图10为本申请实施例终端设备的一种可选组成结构示意图；
图11为本申请实施例核心网网元的一种可选组成结构示意图；
图12为本申请实施例电子设备的硬件组成结构示意图。
具体实施方式
为了能够更加详尽地了解本申请实施例的特点和技术内容，下面结合附图对本申请实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本申请实施例。
在对本申请实施例提供的网络选择方法进行详细描述之前，对相关内容进行简要说明。
非地面通信网络(Non Terrestrial Network，NTN)采用卫星通信的方式向地面用户提供通信服务。与地面蜂窝网通信相比，卫星通信具有很多独特的优点。首先，卫星通信不受用户地域的限制，例如一般的陆地通信不能覆盖海洋、高山、或沙漠等无法搭设通信设备或由于人口稀少而不做通信覆盖的区域；而对于卫星通信来说，由于一颗卫星即可以覆盖较大面积的地面，并且卫星可以围绕地球做轨道运动，因此理论上地球上每一个角落都可以被卫星通信覆盖。其次，卫星通信有较高的社会价值。卫星通信在边远山区、贫穷落后的国家或地区都可以以较低的成本覆盖到，从而使这些地区的人们享受到先进的语音通信和移动互联网技术，有利于缩小与发达地区的数字鸿沟，促进这些地区的发展。再次，卫星通信距离远，且通信距离增大并不会明显增加通讯的成本；最后，卫星通信的稳定性高，不受自然灾害的限制。
通信卫星按照轨道高度的不同分为低地球轨道(Low-Earth Orbit，LEO)卫星、中地球轨道(Medium-Earth Orbit，MEO)卫星、地球同步轨道(Geostationary Earth Orbit，GEO)卫星、和高椭圆轨道(High Elliptical Orbit，HEO)卫星等。下面分别对LEO和GEO进行简要说明。
LEO的轨道高度范围为500km至1500km，相应轨道周期约为1.5小时至2小时。终端设备之间单跳通信的信号传播延迟一般小于20ms。最大卫星可视时间20分钟。信号传播距离短，链路损耗少，对终端设备的发射功率要求不高。
GEO的轨道高度为35786km，围绕地球旋转周期为24小时。终端设备之间单跳通信的信号传播延迟一般为250ms。为了保证卫星的覆盖以及提升整个卫星通信系统的系统容量，卫星采用多波束覆盖地面，一颗卫星可以形成几十甚至数百个波束来覆盖地面；一个卫星波束可以覆盖直径几十至上百公里的地面区域。
在5G系统中，网络注册的流程示意图，如图1所示，包括：
步骤1，终端设备发起注册过程，终端设备在无线资源控制(Radio Resource Control RRC)建立完成消息中将注册请求发给无线接入网(Radio Access Network，RAN)。
步骤2，RAN向接入与移动性管理功能(Access and Mobility Management Function，AMF)实体发送初始终端设备消息，初始终端设备消息中携带注册请求消息，并携带终端设备的位置信息；其中，终端设备的位置信息可以包括跟踪区标识(Tracking area Identity，TAI)及小区全球标识(Cell Global Identifier，CGI)。
步骤3，AMF实体接受注册过程，并向终端设备发送注册接受消息，注册接受消息在下行非接入层(Non-Access-Stratum，NAS)传输消息中携带。AMF实体在注册接受消息中携带5G全球唯一临时UE标识(5G Globally Unique Temporary UE Identity，5G-GUTI)。
步骤4，RAN向终端设备发送下行NAS传输消息，下行NAS传输消息中携带注 册接受消息。
步骤5，终端设备收到注册接受消息后，终端设备向AMF实体返回注册完成消息，用于确认5G-GUTI已经生效。
在蜂窝网络中，因为RAN和AMF实体都是固定位置，所以AMF实体可以通过步骤2中初始终端设备消息中的TAI或CGI获知终端设备的位置信息。在蜂窝网络中，5G网络中位置服务的架构图，如图2所示，5G网络中通过LMF实体获取终端设备的位置信息，具体包括：LMF实体向AMF实体获取终端设备的位置信息(主要指TAI或者CGI)，或者LMF实体向终端设备获取位置信息；当外部LCS客户端需要通过3GPP网络获取终端设备的位置信息时，LCS客户端可以向GMLC请求获取终端设备的位置信息，而GMLC向AMF实体获取终端设备的位置信息，AMF实体将从LMF获取的位置信息通过GMLC发送给LCS客户端。基于位置服务(Location Service，LCS)确定终端设备的位置信息都是在注册完成之后实现的，如图3所示，包括：
步骤1，终端设备发起注册过程，注册请求消息中携带用户ID及注册类型；AMF实体在注册接受消息中携带5G-GUTI及注册区域。
其中，终端设备发起注册过程包括图1所示的步骤1至步骤5。
步骤2，位置管理功能实体(Location Management Function，LMF)向AMF实体发送Namf_Communication_N1N2MessageTransfer消息，消息中携带LCS关联的ID，下行(DownLink，DL)定位容器(container)，其中DL定位container可以用来携带定位辅助信息。
步骤3，AMF实体向终端设备发送下行NAS传递消息(DL NAS TRANSPORT)，在下行NAS传递消息中还携带DL定位container。
步骤4，终端设备根据步骤2中的位定位辅助信息计算终端设备的位置。
步骤5，终端设备向AMF实体返回上行NAS传递消息(UL NAS TRANSPORT)，上行NAS传递消息中携带上行(UpLink，UL)定位container，UL定位container用于携带终端设备的位置信息；
步骤6，AMF实体触发Namf_Communication_N1MessageNotify消息，Namf_Communication_N1MessageNotify消息中携带UL定位container。
步骤7，LMF实体向AMF实体返回Nlmf_Location_DetermineLocation消息，Nlmf_Location_DetermineLocation消息中携带终端设备的当前位置信息。
在卫星网络中，由于卫星的覆盖问题，一个卫星网络可以覆盖多个国家，如图4所示，卫星1对应的网络可以覆盖国家1和2，卫星2对应的网络只覆盖了国家1。当终端设备处于国家1的时候，终端设备处于卫星1和卫星2的覆盖区域内；但是存在一种场景，即卫星1在国家1中没有地面接收站为终端设备提供服务，在该场景下，如果终端设备选择国家1的核心网，便不符合政策监管及合法监听要求(若终端设备处于哪个国家，则终端设备选择的核心网(如AMF实体)就应该处于哪个国家)。因此，若终端设备选择国家1的核心网，终端设备选择的核心网不能够为终端设备提供服务，则终端设备不能及时地接入到正确的网络，如终端设备不能及时地接入到正确的卫星公共陆地移动网络(Public Land Mobile Network，PLMN)。
本申请实施例的技术方案可以应用于各种通信系统，例如：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)系统、先进的长期演进(advanced long term evolution，LTE-A)系统、新无线(new radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、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、无线局域网(wireless local area networks，WLAN)、无线保真(wireless fidelity，WiFi)、下一代通信系统或其他通信系统等。
本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请实施例中涉及的网络设备，可以是普通的基站(如NodeB或eNB或者gNB)、新无线控制器(new radio controller，NR controller)、集中式网元(centralized unit)、新无线基站、射频拉远模块、微基站、中继(relay)、分布式网元(distributed unit)、接收点(transmission reception point，TRP)、传输点(transmission point，TP)或者任何其它设备。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请所有实施例中，上述为终端设备提供无线通信功能的装置统称为网络设备。
在本申请实施例中，终端设备可以是任意的终端，比如，终端设备可以是机器类通信的用户设备。也就是说，该终端设备也可称之为用户设备UE、移动台(mobile station，MS)、移动终端(mobile terminal)、终端(terminal)等，该终端设备可以经无线接入网(radio access network，RAN)与一个或多个核心网进行通信，例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等，例如，终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。本申请实施例中不做具体限定。
可选的，网络设备和终端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；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对网络设备和终端设备的应用场景不做限定。
可选的，网络设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过非授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和非授权频谱进行通信。网络设备和终端设备之间以及终端设备和终端设备之间可以通过7吉兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过7GHz以上的频谱进行通信，还可以同时使用7GHz以下的频谱和7GHz以上的频谱进行通信。本申请的实施例对网络设备和终端设备之间所使用的频谱资源不做限定。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术 的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(device to device，D2D)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及车辆间(vehicle to vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
示例性的，本申请实施例应用的通信系统100，如图5所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图5示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图5示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
本申请实施例提供的应用于终端设备的网络选择方法的一种可选处理流程，如图6所示，至少包括以下步骤：
步骤S201，终端设备发起针对第一网络的注册流程之后，接收核心网网元发送的第一信息。
在一些实施例中，所述第一信息包括：所述终端设备所属的区域信息。所述终端设备所属的区域信息可以是移动国家码(Mobile Country Code，MCC)；所述终端设备所属的区域信息也可以是MCC和移动网络码(Mobile Network Code，MNC)。
在一些实施例中，所述终端设备发起针对第一网络的注册流程，包括：
所述终端设备向所述核心网网元发送注册请求消息，所述注册请求消息用于请求注册所述第一网络；所述终端设备向所述核心网网元发送所述终端设备的位置信息。其中，所述终端设备的位置信息，可以是终端设备的实际物理地址。
在一些实施例中，若终端设备向核心网网元(如AMF实体)发起针对第一网络的注册流程之后，核心网网元根据终端设备的位置信息确定终端设备请求注册的第一网络不能够为终端设备服务后，核心网网元向终端设备发送至少包括MCC的第一信息。
其中，第一网络不能够为终端设备服务，可以是第一网络对应的卫星在终端设备所属的国家没有地面接收站为终端设备提供服务。
在一些可选实施例中，所述第一信息携带于去注册请求(Deregistration Request)消息中。
若所述第一信息携带于Deregistration Request消息中，则终端设还可以向核心网网元发送去注册接受(Deregistration Accept)消息。
在另一些可选实施例中，所述第一信息携带于终端设备配置命令(UE CONFIGURATION COMMAND)消息中。
若所述第一信息携带于UE CONFIGURATION COMMAND消息中，则终端设备还可以向核心网网元发送终端设备配置完成(UE CONFIGURATION COMPLETE)消息。
步骤S202，终端设备基于第一信息确定目标网络。
在一些实施例中，若第一信息包括MCC，则终端设备根据MCC重新确定待注册的目标网络。
在另一些实施例中，若第一信息包括MCC和MNC，则终端设备根据MCC和MNC重新确定待注册的目标网络。
其中，待注册的目标网络是能够为终端设备提供服务的网路，如卫星网络的PLMN。
在一些实施例中，所述网络选择方法，还可以包括：
步骤S203，终端设备注册所述目标网络。
在一些实施例中，终端设备根据MCC、或终端设备根据MCC和MNC确定目标网络之后，针对目标网络发起注册流程。
本申请实施例提供的应用于核心网网元的网络选择方法的一种可选处理流程，如图7所示，至少包括以下步骤：
步骤S301，在终端设备请求注册的第一网络不能为所述终端设备提供服务的情况下，核心网网元向终端设备发送第一信息。
在一些实施例中，终端设备针对第一网络发起注册流程后，核心网网元根据终端设备的位置信息判断第一网络不能够为终端设备提供服务，则核心网网元向终端设备发送第一信息，所述第一信息包括所述终端设备所属的区域信息，所述第一信息用于所述终端设备注册目标网络。
其中，第一网络不能够为终端设备服务，可以是第一网络对应的卫星在终端设备所属的国家没有地面接收站为终端设备提供服务。
在一些实施例中，所述第一信息包括：所述终端设备所属的区域信息。所述终端设备所属的区域信息可以是MCC；所述终端设备所属的区域信息也可以是MCC和MNC。
在一些可选实施例中，所述第一信息携带于Deregistration Request消息中。
若所述第一信息携带于Deregistration Request消息中，则核心网网元还可以接收终端设备发送的去注册接受(Deregistration Accept)消息。
在另一些可选实施例中，所述第一信息携带于UE CONFIGURATION COMMAND消息中。
若所述第一信息携带于UE CONFIGURATION COMMAND消息中，则核心网网元还可以接收终端设备发送的终端设备配置完成(UE CONFIGURATION COMPLETE)消息。
在一些可选实施例中，所述方法还可以包括：
步骤S302，核心网网元接收所述终端设备发送的注册请求消息，所述注册请求消息用于所述终端设备请求注册所述目标网络。
在一些实施例中，所述目标网络可以包括：卫星PLMN。
需要说明的是，本申请实施例中，核心网网元可以是AMF实体。
本申请实施例提供的网络选择方法的一种详细可选处理流程，如图8所示，至少包括以下步骤：
步骤S401，终端设备发起针对第一网络的注册过程。
在一些实施例中，终端设备向AMF实体发送注册请求消息，所述注册请求消息中携带用户ID及注册类型；AMF实体向终端设备发送注册接受消息，注册接受消息中携带5G-GUTI及注册区域。
步骤S402，位置功能管理LMF实体向AMF实体发送Namf_Communication_N1N2MessageTransfer消息；Namf_Communication_N1N2MessageTransfer消息中携带位置服务(Location Service，LCS)关联ID和DL定位container；其中，DL定位container可以用来携带定位辅助信息。
步骤S403，AMF实体向终端设备发送DL NAS TRANSPORT下行NAS传递消息。
在一些实施例中，DL NAS TRANSPORT下行NAS传递消息中携带DL定位container。
步骤S404，终端设备根据定位辅助信息计算终端设备的位置信息。
在一些实施例中，终端设备的位置信息可以是终端设备的实际物理位置。
步骤S405，终端设备向AMF实体返回UL NAS TRANSPORT上行NAS传递消息。
在一些实施例中，UL NAS TRANSPORT上行NAS传递消息中携带UL定位container，UL定位container用于携带终端设备的位置信息。
步骤S406，AMF实体触发Namf_Communication_N1MessageNotify消息。
在一些实施例中，Namf_Communication_N1MessageNotify消息中携带UL定位container。
步骤S407，LMF实体向AMF实体返回Nlmf_Location_DetermineLocation消息。
在一些实施例中，Nlmf_Location_DetermineLocation消息中携带终端设备的位置信息。
在一些实施例中，LMF实体对UL定位container中的位置信息进行解析，得到终端设备的位置信息，并通过Nlmf_Location_DetermineLocation消息将终端设备的位置信息发送给AMF实体。
步骤S408，AMF实体根据终端设备的位置信息，确认终端设备没有选择正确的卫星PLMN，AMF实体发起Deregistration过程，向终端设备发送Deregistration Request消息。
其中，终端设备没有选择正确的卫星PLMN，可以是该卫星在终端设备所属的国家没有地面接收站为终端设备提供服务。
在一些实施例中，Deregistration Request消息中携带MCC，或者Deregistration Request消息中携带MCC和MNC。
步骤S409，终端设备向AMF实体返回Deregistration Accept消息。
步骤S410，终端设备根据MCC、或根据MCC和MNC选择卫星PLMN。
本申请实施例提供的网络选择方法的一种详细可选处理流程，如图9所示，至少包括以下步骤：
步骤S501，终端设备发起针对第一网络的注册过程。
在一些实施例中，终端设备向AMF实体发送注册请求消息，所述注册请求消息中携带用户ID及注册类型；AMF实体向终端设备发送注册接受消息，注册接受消息中携带5G-GUTI及注册区域。
步骤S502，位置功能管理LMF实体向AMF实体发送Namf_Communication_N1N2MessageTransfer消息；Namf_Communication_N1N2MessageTransfer消息中携带LCS关联ID和DL定位container；其中，DL定位container可以用来携带定位辅助信息。
步骤S503，AMF实体向终端设备发送DL NAS TRANSPORT下行NAS传递消息。
在一些实施例中，DL NAS TRANSPORT下行NAS传递消息中携带DL定位container。
步骤S504，终端设备根据定位辅助信息计算终端设备的位置信息。
在一些实施例中，终端设备的位置信息可以是终端设备的实际物理位置。
步骤S505，终端设备向AMF实体返回UL NAS TRANSPORT上行NAS传递消息。
在一些实施例中，UL NAS TRANSPORT上行NAS传递消息中携带UL定位container，UL定位container用于携带终端设备的位置信息。
步骤S506，AMF实体触发Namf_Communication_N1MessageNotify消息。
在一些实施例中，Namf_Communication_N1MessageNotify消息中携带UL定位container。
步骤S507，LMF实体向AMF实体返回Nlmf_Location_DetermineLocation消息。
在一些实施例中，Nlmf_Location_DetermineLocation消息中携带终端设备的位置信息。
在一些实施例中，LMF实体对UL定位container中的位置信息进行解析，得到终端设备的位置信息，并通过Nlmf_Location_DetermineLocation消息将终端设备的位置信息发送给AMF实体。
步骤S508，AMF实体根据终端设备的位置信息，确认终端设备没有选择正确的卫星PLMN，AMF实体向终端设备发送UE CONFIGURATION COMMAND消息。
在一些实施例中，UE CONFIGURATION COMMAND消息中携带MCC，或者UE CONFIGURATION COMMAND消息中携带MCC和MNC。
其中，终端设备没有选择正确的卫星PLMN，可以是该卫星在终端设备所属的国家没有地面接收站为终端设备提供服务。
步骤S509，终端设备向AMF实体返回UE CONFIGURATION COMPLETE消息。
步骤S510，终端设备根据MCC、或根据MCC和MNC选择卫星PLMN。
本申请实施例中，核心网网元(如AMF实体)在根据终端设备的位置信息判断终端设备请求注册的网络不能够为终端设备服务的情况下，如终端设备请求的网络对应的卫星在终端设备所属的国家没有地面接收站为终端设备服务，则核心网网元通过UE CONFIGURATION COMMAND消息或Deregistration Request消息向终端设备发送MCC、或发送MCC和MNC，以使终端设备能够根据MCC、或根据MCC和MNC选择正确的卫星PLMN注册；进而实现了终端设备快速地接入有效的卫星PLMN。
为实现上述网络选择方法，本申请实施例还提供一种终端设备，所述终端设备600的一种可选组成结构示意图，如图10所示，包括：
第一接收单元601，配置为接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；
第一处理单元602，配置为基于所述第一信息确定目标网络。
在一些实施例中，所述终端设备所属的区域信息包括：MCC。
在一些实施例中，所述第一信息还包括：MNC。
在一些实施例中，所述第一信息携带于去注册请求消息中。
在一些实施例中，所述终端设备600还包括：第一发送单元603，配置为发送去注册接受消息。
在一些实施例中，所述第一信息携带于终端设备配置命令消息中。
在一些实施例中，所述终端设备600还包括：
第二发送单元604，配置为发送终端设备配置完成消息。
在一些实施例中，所述第一处理单元601，配置为向所述核心网网元发送注册请求消息，所述注册请求消息用于请求注册所述第一网络；
向所述核心网网元发送所述终端设备的位置信息。
在一些实施例中，所述第一处理单元601，还配置为注册所述目标网络。
在一些实施例中，所述目标网络包括：卫星PLMN。
在一些实施例中，所述核心网网元包括：AMF实体。
为实现上述网络选择方法，本申请实施例还提供一种核心网网元，所述核心网网元800的另一种可选组成结构示意图，如图11所示，包括：
第三发送单元801，配置为在终端设备请求注册的第一网络不能为所述终端设备提供服务的情况下，向所述终端设备发送第一信息；
所述第一信息包括所述终端设备所属的区域信息，所述第一信息用于所述终端设备注册目标网络。
在一些实施例中，所述终端设备所属的区域信息包括：MCC。
在一些实施例中，所述第一信息还包括：MNC。
在一些实施例中，所述第一信息携带于去注册请求消息中。
在一些实施例中，所述核心网网元800还包括：第二接收单元802，配置为接收去注册接受消息。
在一些实施例中，所述第一信息携带于终端设备配置命令消息中。
在一些实施例中，所述核心网网元800还包括：
第三接收单元803，配置为接收终端设备配置完成消息。
在一些实施例中，所述核心网网元800还包括：
第二处理单元804，配置为基于所述终端设备的位置信息，确定所述第一网络不能为所述终端设备服务。
在一些实施例中，所述核心网网元800还包括：
第四接收单元805，配置为接收所述终端设备发送的注册请求消息，所述注册请求消息用于所述终端设备请求注册所述目标网络。
在一些实施例中，所述目标网络包括：卫星PLMN。
在一些实施例中，所述核心网网元800包括：AMF实体。
本申请实施例还提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的网络选择方法的步骤。
本申请实施例还提供一种核心网网元，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述核心网网元执行的网络选择方法的步骤。
本申请实施例还提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行上述终端设备执行的网络选择方法。
本申请实施例还提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行上述核心网网元执行的网络选择方法。
本申请实施例还提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述终端设备执行的网络选择方法。
申请实施例还提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述核心网网元执行的网络选择方法。
本申请实施例还提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述终端设备执行的网络选择方法。
本申请实施例还提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述核心网网元执行的网络选择方法。
本申请实施例还提供一种计算机程序，所述计算机程序使得计算机执行上述终端设备执行的网络选择方法。
本申请实施例还提供一种计算机程序，所述计算机程序使得计算机执行上述核心网网元执行的网络选择方法。
图12是本申请实施例的电子设备(终端设备或核心网网元)的硬件组成结构示意图，电子设备700包括：至少一个处理器701、存储器702和至少一个网络接口704。电子设备700中的各个组件通过总线系统705耦合在一起。可理解，总线系统705用于实现这些组件之间的连接通信。总线系统705除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图12中将各种总线都标为总线系统705。
可以理解，存储器702可以是易失性存储器或非易失性存储器，也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ROM、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，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(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本申请实施例描述的存储器702旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例中的存储器702用于存储各种类型的数据以支持电子设备700的操作。这些数据的示例包括：用于在电子设备700上操作的任何计算机程序，如应用程序 7022。实现本申请实施例方法的程序可以包含在应用程序7022中。
上述本申请实施例揭示的方法可以应用于处理器701中，或者由处理器701实现。处理器701可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器701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701可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器701可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器702，处理器701读取存储器702中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，电子设备700可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、MPU、或其他电子元件实现，用于执行前述方法。
本申请是参照根据本申请实施例的方法、设备(系统)、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、专用计算机、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。
应理解，本申请中术语“系统”和“网络”在本文中常被可互换使用。本申请中术语“和/或”，仅仅是一种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这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (54)

  1. 一种网络选择方法，所述方法包括：
    终端设备发起针对第一网络的注册流程之后，接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；
    所述终端设备基于所述第一信息确定目标网络。
  2. 根据权利要求1所述的方法，其中，所述终端设备所属的区域信息包括：
    移动国家码MCC。
  3. 根据权利要求2所述的方法，其中，所述第一信息还包括：
    移动网络代码MNC。
  4. 根据权利要求1至3任一项所述的方法，其中，所述第一信息携带于去注册请求消息中。
  5. 根据权利要求4所述的方法，其中，所述方法还包括：
    所述终端设备发送去注册接受消息。
  6. 根据权利要求1至3任一项所述的方法，其中，所述第一信息携带于终端设备配置命令消息中。
  7. 根据权利要求6所述的方法，其中，所述方法还包括：
    所述终端设备发送终端设备配置完成消息。
  8. 根据权利要求1至7任一项所述的方法，其中，所述终端设备发起针对第一网络的注册流程，包括：
    所述终端设备向所述核心网网元发送注册请求消息，所述注册请求消息用于请求注册所述第一网络；
    所述终端设备向所述核心网网元发送所述终端设备的位置信息。
  9. 根据权利要求1至8任一项所述的方法，其中，所述方法还包括：
    所述终端设备注册所述目标网络。
  10. 根据权利要求1至9任一项所述的方法，其中，所述目标网络包括：
    卫星公共陆地移动网PLMN。
  11. 根据权利要求1至10任一项所述的方法，其中，所述核心网网元包括：
    接入和移动性管理功能AMF实体。
  12. 一种网络选择方法，所述方法包括：
    在终端设备请求注册的第一网络不能为所述终端设备提供服务的情况下，核心网网元向所述终端设备发送第一信息；
    所述第一信息包括所述终端设备所属的区域信息，所述第一信息用于所述终端设备注册目标网络。
  13. 根据权利要求12所述的方法，其中，所述终端设备所属的区域信息包括：
    移动国家码MCC。
  14. 根据权利要求13所述的方法，其中，所述第一信息还包括：
    移动网络代码MNC。
  15. 根据权利要求12至14任一项所述的方法，其中，所述第一信息携带于去注册请求消息中。
  16. 根据权利要求15所述的方法，其中，所述方法还包括：
    所述核心网网元接收去注册接受消息。
  17. 根据权利要求11至13任一项所述的方法，其中，所述第一信息携带于终端设备配置命令消息中。
  18. 根据权利要求17所述的方法，其中，所述方法还包括：
    所述核心网网元接收终端设备配置完成消息。
  19. 根据权利要求12至18任一项所述的方法，其中，所述方法还包括：
    所述核心网网元基于所述终端设备的位置信息，确定所述第一网络不能为所述终端设备服务。
  20. 根据权利要求12至19任一项所述的方法，其中，所述方法还包括：
    所述核心网网元接收所述终端设备发送的注册请求消息，所述注册请求消息用于所述终端设备请求注册所述目标网络。
  21. 根据权利要求12至20任一项所述的方法，其中，所述目标网络包括：
    卫星公共陆地移动网PLMN。
  22. 根据权利要求12至21任一项所述的方法，其中，所述核心网网元包括：
    接入和移动性管理功能AMF实体。
  23. 一种终端设备，所述终端设备包括：
    第一接收单元，配置为接收核心网网元发送的第一信息；所述第一信息包括：所述终端设备所属的区域信息；
    第一处理单元，配置为基于所述第一信息确定目标网络。
  24. 根据权利要求23所述的终端设备，其中，所述终端设备所属的区域信息包括：
    移动国家码MCC。
  25. 根据权利要求24所述的终端设备，其中，所述第一信息还包括：
    移动网络代码MNC。
  26. 根据权利要求23至25任一项所述的终端设备，其中，所述第一信息携带于去注册请求消息中。
  27. 根据权利要求26所述的终端设备，其中，所述终端设备还包括：
    第一发送单元，配置为发送去注册接受消息。
  28. 根据权利要求23至25任一项所述的终端设备，其中，所述第一信息携带于终端设备配置命令消息中。
  29. 根据权利要求28所述的终端设备，其中，所述终端设备还包括：
    第二发送单元，配置为发送终端设备配置完成消息。
  30. 根据权利要求23至29任一项所述的终端设备，其中，
    所述第一处理单元，配置为向所述核心网网元发送注册请求消息，所述注册请求消息用于请求注册所述第一网络；
    向所述核心网网元发送所述终端设备的位置信息。
  31. 根据权利要求23至30任一项所述的终端设备，其中，
    所述第一处理单元，还配置为注册所述目标网络。
  32. 根据权利要求23至31任一项所述的终端设备，其中，所述目标网络包括：
    卫星公共陆地移动网PLMN。
  33. 根据权利要求23至32任一项所述的终端设备，其中，所述核心网网元包括：
    接入和移动性管理功能AMF实体。
  34. 一种核心网网元，所述核心网网元包括：
    第三发送单元，配置为在终端设备请求注册的第一网络不能为所述终端设备提供服务的情况下，向所述终端设备发送第一信息；
    所述第一信息包括所述终端设备所属的区域信息，所述第一信息用于所述终端设备注册目标网络。
  35. 根据权利要求34所述的核心网网元，其中，所述终端设备所属的区域信息包括：
    移动国家码MCC。
  36. 根据权利要求35所述的核心网网元，其中，所述第一信息还包括：
    移动网络代码MNC。
  37. 根据权利要求34至36任一项所述的核心网网元，其中，所述第一信息携带于去注册请求消息中。
  38. 根据权利要求37所述的核心网网元，其中，所述核心网网元还包括：
    第二接收单元，配置为接收去注册接受消息。
  39. 根据权利要求34至36任一项所述的核心网网元，其中，所述第一信息携带于终端设备配置命令消息中。
  40. 根据权利要求39所述的核心网网元，其中，所述核心网网元还包括：
    第三接收单元，配置为接收终端设备配置完成消息。
  41. 根据权利要求34至40任一项所述的核心网网元，其中，所述核心网网元还包括：
    第二处理单元，配置为基于所述终端设备的位置信息，确定所述第一网络不能为所述终端设备服务。
  42. 根据权利要求34至41任一项所述的核心网网元，其中，所述核心网网元还包括：
    第四接收单元，配置为接收所述终端设备发送的注册请求消息，所述注册请求消息用于所述终端设备请求注册所述目标网络。
  43. 根据权利要求34至42任一项所述的核心网网元，其中，所述目标网络包括：
    卫星公共陆地移动网PLMN。
  44. 根据权利要求34至43任一项所述的核心网网元，其中，所述核心网网元包括：
    接入和移动性管理功能AMF实体。
  45. 一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行权利要求1至11任一项所述的网络选择方法的步骤。
  46. 一种核心网网元，包括处理器和用于存储能够在处理器上运行的计算机程序的 存储器，其中，所述处理器用于运行所述计算机程序时，执行权利要求12至22任一项所述的网络选择方法的步骤。
  47. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现权利要求1至11任一项所述的网络选择方法。
  48. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现权利要求12至22任一项所述的网络选择方法。
  49. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至11任一项所述的网络选择方法。
  50. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求12至22任一项所述的网络选择方法。
  51. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1至11任一项所述的网络选择方法。
  52. 一种计算机程序，所述计算机程序使得计算机执行如权利要求12至22任一项所述的网络选择方法。
  53. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至11任一项所述的网络选择方法。
  54. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求12至22任一项所述的网络选择方法。
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