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WO2019144768A1 - Procédé et terminal de commutation de mode d'enregistrement de réseau - Google Patents

Procédé et terminal de commutation de mode d'enregistrement de réseau Download PDF

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Publication number
WO2019144768A1
WO2019144768A1 PCT/CN2018/125190 CN2018125190W WO2019144768A1 WO 2019144768 A1 WO2019144768 A1 WO 2019144768A1 CN 2018125190 W CN2018125190 W CN 2018125190W WO 2019144768 A1 WO2019144768 A1 WO 2019144768A1
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WO
WIPO (PCT)
Prior art keywords
terminal
communication network
network
registration
communication
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/CN2018/125190
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English (en)
Chinese (zh)
Inventor
孙习波
文露涛
杨林平
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
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Publication of WO2019144768A1 publication Critical patent/WO2019144768A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices

Definitions

  • the present application relates to the field of communications, and in particular, to a method and a terminal for switching a network registration mode.
  • 5th generation 5th generation, 5G mobile communication standard protocol
  • LTE long term evolution
  • NR new radio
  • the N26 interface is an interface between the 5th-generation core (5GC) device and the evolved packet core (EPC) device.
  • 5GC 5th-generation core
  • EPC evolved packet core
  • the embodiment of the present invention provides a method and a terminal for switching a network registration mode, which is used by a terminal to perform a reasonable handover when the terminal works in a single or dual registration mode according to the indication information sent by the 5G core network device, thereby reducing interoperation. Delay, saving system resources.
  • the first aspect of the embodiments of the present application provides a method for switching a network registration mode, which may include: when the terminal detects the first communication network, the terminal may send the first to the core network device of the first communication network. a registration request; the terminal receives a first registration result sent by the core network device of the first communication network, where the first registration result is a registration result corresponding to the first registration request, and the first registration result includes a core of the first communication network Whether there is indication information of the network interface between the network device and the core network device of the second communication network, where the network interface is used by the core network device of the first communication network to obtain the terminal when the terminal is in the coverage area of the second communication network Context, or the network interface is used by the core network device of the second communication network to obtain the context of the terminal when the terminal is in the coverage area of the first communication network; the terminal is in the single registration mode and the dual registration mode according to the indication information.
  • the single registration mode is that the terminal is registered in the first communication network or in the second communication network.
  • the dual mode terminal registered in the registration of at least one of a first communication network and the network to which the second communications network mode.
  • the first communication network may be a 5G network
  • the second communication network may be an LTE network
  • the network interface may be an N26 interface.
  • the first registration request may carry information such as an identifier (ID), a channel capability parameter, and a registration type of the terminal.
  • the first registration result may carry indication information about whether the registration is successful, the channel capability negotiated by the network and the terminal, the service that can be provided, the identity that the 5GC reassigns to the terminal, and whether the N26 interface exists in the network.
  • the terminal performs reasonable handover on the terminal in different registration modes, which reduces the interoperation delay and saves system resources.
  • the terminal when the current working mode of the terminal is the single registration mode, the terminal completes the switching between the single registration mode and the dual registration mode according to the indication information, including: if the terminal according to the indication information Determining that the network interface does not exist, the terminal switches from the single registration mode to the dual registration mode.
  • the method may further include: when the terminal detects the second communication network, the terminal is in the dual registration mode
  • the core network device of the second communication network sends a second registration request; the terminal receives a second registration result sent by the core network device of the second communication network; when the terminal moves out of the coverage area of the first communication network, the terminal Communication is performed through the second communication network according to the second registration result.
  • the dual registration mode is that registration can be initiated to at least one of the first communication network and the second communication network
  • the dual registration mode initiates registration with the terminal to both the first communication network and the second communication network.
  • the previous terminal has sent the first registration request to the core network device of the first communication network, and also receives the first registration result sent by the core network device of the first communication network device, after switching to the dual registration mode, if detecting To the second communication network, the second registration request may be initiated to the core network device of the second communication network.
  • the terminal has not performed inter-system interoperation, and the terminal receives the second registration result sent by the core network device of the second communication network.
  • the terminal When the terminal moves out of the coverage of the first communication network, the terminal can directly communicate through the second communication network according to the second registration result. Because the terminal has completed registration with the core network device of the second communication network before the terminal moves out of the first communication network, the terminal can directly use the second communication network according to the second registration result when the different systems interoperate. Reduce the delay of the terminal to perform different system operations. It should be noted that the inter-system interoperation may include handover between 5GC and LTE, cell reselection, and cell change.
  • the terminal communicates through the second communication network according to the second registration result, which may include, but is not limited to, the following implementation manners:
  • the terminal initiates random access to the second communication network, and performs communication through the second communication network according to the second registration result;
  • the terminal when the terminal is in the connected state, the terminal switches from the first communication network to the second communication network under the handover instruction of the core network device of the first communication network; the terminal passes the second registration result according to the second registration result
  • the second communication network communicates.
  • the state of the terminal needs to be considered.
  • the terminal When the terminal is in the idle state and moves out of the coverage area of the first communication network, the terminal initiates random access tracking to the second communication network.
  • the area is updated and communicated via the second communication network based on the second registration result.
  • the terminal When the terminal is in the connected state, the terminal switches from the first communication network to the second communication network according to the handover instruction sent by the core network device of the first communication network, and the terminal does not need to initiate random access to the second communication network. Only the tracking area update can be performed to communicate via the second communication network according to the second registration result.
  • the terminal when the current working mode of the terminal is the dual registration mode, the terminal performs the switching between the single registration mode and the dual registration mode according to the indication information, and the specific implementation manner may include: if the terminal And determining, according to the indication information, that the network interface exists, the terminal switches from the dual registration mode to the single registration mode.
  • the terminal can obtain the context required for terminal communication through the network interface from the dual registration mode to the single registration mode, from the dual registration mode. Switching to single registration mode saves system resources.
  • the method may further The method includes: when the terminal detects the second communication network, the terminal sends a deregistration request to the core network device of the second communication network in the single registration mode; the terminal receives the core network device sent by the second communication network De-registration result; when the terminal moves out of the coverage of the first communication network, the terminal acquires context information of the terminal from the first communication network through the network interface, where the context information includes the identity and registration status of the terminal And terminal UE capability; the terminal communicates through the second communication network according to the context information.
  • the dual registration mode is that registration can be initiated to at least one of the first communication network and the second communication network
  • the dual registration mode initiates registration with the terminal to both the first communication network and the second communication network.
  • the previous terminal has sent the first registration request to the core network device of the first communication network, and also receives the first registration result sent by the core network device of the first communication network device, and the default is also to the core of the second communication network.
  • the network device sends a second registration request, and receives a second registration result sent by the second communication network. Therefore, after switching to the single registration mode, if the second communication network is detected, the deregistration request may be initiated to the core network device of the second communication network.
  • the terminal has not performed inter-system interoperation, and the terminal receives the second communication again.
  • the terminal may obtain context information of the terminal from the first communication network by using the network interface, where the context information includes an identity, a registration status, and a terminal UE capability of the terminal; Communication is performed through the second communication network based on the context information. Because the terminal has completed de-registration to the core network device of the second communication network before the terminal moves out of the first communication network, the terminal directly uses the second communication network according to the second registration result when the different systems interoperate. Can save system resources.
  • the terminal communicates through the second communication network according to the context information, which may include, but is not limited to, the following implementation manners:
  • the terminal initiates random access to the second communication network, and communicates through the second communication network according to the context information;
  • the terminal when the terminal is in the connected state, the terminal switches from the first communication network to the second communication network under the handover instruction of the core network device of the first communication network; the terminal passes the first according to the context information Two communication networks communicate.
  • the second aspect of the embodiment of the present application provides a terminal, which may include:
  • the sending module is configured to: when the terminal detects the first communication network, send a first registration request to the core network device of the first communication network;
  • the receiving module is configured to receive a first registration result sent by the core network device of the first communication network, where the first registration result includes whether a network interface exists between the core network device of the first communication network and the core network device of the second communication network. Instructing, the network interface is used by the core network device of the first communication network to acquire the context of the terminal when the terminal is in the coverage area of the second communication network, or the network interface is used by the core network device of the second communication network to acquire the terminal in the first communication network.
  • the switching module is configured to complete switching between the single registration mode and the dual registration mode according to the indication information, where the single registration mode is a mode in which the terminal is registered in the first communication network or in the second communication network, and the dual registration mode is the first in the terminal.
  • the switching module is specifically configured to switch from the single registration mode to the dual registration mode if the terminal determines that the network interface does not exist according to the indication information.
  • the terminal further includes: a communication module;
  • the sending module is specifically configured to: when the terminal detects the second communication network, send a second registration request to the core network device of the second communication network in the dual registration mode;
  • the receiving module is specifically configured to receive a second registration result sent by the core network device of the second communication network
  • the communication module is configured to perform communication through the second communication network according to the second registration result when the terminal moves out of the coverage area of the first communication network.
  • the communication module is specifically configured to: if the terminal is in an idle state, initiate random access to the second communication network, and perform communication through the second communication network according to the second registration result; or
  • the communication module is specifically configured to: when the terminal is in the connected state, switch from the first communication network to the second communication network under the handover instruction of the core network device of the first communication network; and communicate through the second communication network according to the second registration result. .
  • the switching module is specifically configured to switch from the dual registration mode to the single registration mode if the terminal determines that the network interface exists according to the indication information.
  • the terminal further includes: an acquisition module;
  • the sending module is further configured to: when the terminal detects the second communication network, send a deregistration request to the core network device of the second communication network in the single registration mode;
  • the receiving module is further configured to receive a de-registration result sent by the core network device of the second communication network;
  • the acquiring module is configured to: when the terminal moves out of the coverage of the first communication network, obtain the context information of the terminal from the first communication network by using the network interface, where the context information includes the identity of the terminal, the registration status, and the capability of the terminal UE;
  • the communication module is configured to communicate via the second communication network according to the context information.
  • the communication module is specifically configured to: if the terminal is in an idle state, initiate random access to the second communication network, and communicate according to the context information through the second communication network; or
  • the communication module is specifically configured to: when the terminal is in the connected state, switch from the first communication network to the second communication network under the handover instruction of the core network device of the first communication network; and communicate according to the context information through the second communication network.
  • a third aspect of the embodiment of the present application provides a terminal, where the terminal includes:
  • a memory for storing software instructions
  • the processor is configured to read software instructions in a memory, execute the software instructions to:
  • the terminal When the terminal detects the first communication network, the terminal sends a first registration request to the core network device of the first communication network;
  • the terminal receives a first registration result sent by the core network device of the first communication network, where the first registration result includes whether the core network device of the first communication network and the core network device of the second communication network There is indication information of the network interface, where the network interface is used by the core network device of the first communication network to acquire the context of the terminal when the terminal is in the coverage area of the second communication network, or And acquiring, by the core network device of the second communication network, a context of the terminal when the terminal is in the coverage area of the first communication network;
  • the terminal completes switching between a single registration mode and a dual registration mode according to the indication information, where the single registration mode is a mode in which the terminal is registered in the first communication network or in the second communication network.
  • the dual registration mode is a mode in which the terminal registers in at least one of the first communication network and the second communication network.
  • the terminal further includes the memory for storing the software instructions.
  • a fourth aspect of the present application provides a computer readable storage medium having stored therein instructions that, when executed on a computer or processor, cause the computer or processor to perform the first aspect as described above Or the method described in any of its possible designs.
  • a fifth aspect of the present application provides a computer program product comprising instructions which, when run on a computer or processor, cause the computer or processor to perform as in the first aspect described above or in any of its possible designs The method described.
  • FIG. 1 is a schematic diagram of a communication system architecture in an embodiment of the present application.
  • FIG. 2 is a system architecture diagram of an application according to an embodiment of the present application.
  • 3A is a schematic diagram of a hardware architecture of a terminal in an embodiment of the present application.
  • FIG. 3B is a schematic diagram of a scenario applied to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an embodiment of a method for switching a network registration mode according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of another embodiment of a method for switching a network registration mode according to an embodiment of the present application
  • FIG. 6 is a schematic diagram of another embodiment of a method for switching a network registration mode according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another embodiment of a method for switching a network registration mode according to an embodiment of the present application.
  • FIG. 8A is a schematic diagram of an embodiment of a terminal in an embodiment of the present application.
  • FIG. 8B is a schematic diagram of another embodiment of a terminal in an embodiment of the present application.
  • FIG. 8C is a schematic diagram of another embodiment of a terminal in an embodiment of the present application.
  • the embodiment of the present application provides a method for switching a network registration mode, which is used for a terminal to reduce the delay of interoperation and save resources of the system.
  • the terminal operating in the single registration mode has only one active mobile management (MM) state.
  • the mobility management state may be a register management (RM) state in 5G or LTE.
  • the evolved packet system mobility management (EMM) state the terminal working in the single registration mode can only be registered in one system, for example, it can be registered only in the fifth generation mobile communication technology core network (5th) -generation core, 5GC) Non-access stratum (NAS) mode, or only registered in the evolved packet core (EPC) NAS mode.
  • the terminal operating in single registration mode maintains a single coordinated registration context for the 5GC and EPC.
  • the difference from the usual single pass is that there is only one card, that is, one user identity, one system is registered, and the single pass is two cards, and two systems are registered, but only one card can perform business at the same time.
  • Dual registration mode In this mode, the terminal can be registered only in the 5GC, or it can be registered only in the EPC. Alternatively, the terminal can also be registered in both the 5GC and the EPC. That is, the terminal can initiate the registration process on both systems at the same time, but the terminal can only communicate in one system during actual operation.
  • the terminal in the dual registration mode has only one card, that is, one user identity, and two systems are registered, but the service is only performed on one system; the dual channel is that the terminal has two cards, and two systems are registered, and the two cards can be simultaneously performed. business.
  • the interworking between the LTE network and the 5G network supports the interoperation between the N26 interface and the interoperation of the N26 interface.
  • the two interoperations need to provide the Internet protocol (IP protocol) for the terminal operating in different systems. ) Address continuity.
  • the interoperation of the N26 interface may be: when the N26 interface exists, the terminal performs different system reselection or switching between the 5GC and the EPC, that is, when the terminal reselects or switches from the 5GC to the EPC, only the tracking needs to be performed.
  • the tracking area update (TAU) or the registration process can be used to synchronize the terminal information through the N26 interface.
  • TAU tracking area update
  • the EPC can pass the N26 interface.
  • the context information of the terminal includes information such as the identity of the terminal, the registration status, and the supported capabilities, so as to implement terminal information synchronization between different systems.
  • the interoperation of the N26 interface may be: when there is no N26 interface, the terminal performs different system reselection or switching between the 5GC and the EPC, and needs to re-register and handover the session in the target system.
  • (session) establishment for example, when the terminal moves from the 5G network coverage area to only the LTE network (also referred to as 4G network) coverage area, the terminal needs to switch from 5GC to EPC, at this time, since the EPC does not know the context of the terminal The information cannot obtain the context information of the terminal through the N26 interface. Therefore, the terminal needs to re-register with the EPC to ensure that the terminal can communicate normally with the EPC.
  • the terminal When the terminal works in the single-registration mode and the N26 interface does not exist on the network, the terminal needs to re-register and attach the process when the system interoperates between the 5GC and the EPC, which increases the interoperation delay.
  • the terminal When the terminal works in the dual registration mode and the network has the N26 interface, the terminal can obtain the terminal context required for the different system switching through the N26 interface without registering in both networks, thereby wasting system resources.
  • FIG. 1 exemplarily shows a schematic diagram of a communication system architecture.
  • the mobility management entity is a core network device of the LTE network (ie, 4G network), and is mainly responsible for user and session management control plane functions, including a non-access stratum (NAS) letter.
  • NAS non-access stratum
  • PGW packet date network gateway
  • SGW service gateway
  • the access and mobility management function is the core network equipment of the 5G network.
  • the AMF can provide registration management, link management, reachability management, mobility management, access authentication and authorization for the terminal.
  • It is connected to the terminal through the N1 interface, and is connected to the 5G access network (RAN) through the N2 interface.
  • RAN 5G access network
  • core network devices of the 4G and 5G networks are not limited to the above network devices, and may include other core network devices.
  • the embodiments of the present application do not limit this, and the names of the core network devices used in the foregoing are There may be evolution in future communication systems.
  • the N26 interface is used for the communication between the LTE core network device EPC and the 5G core network device (5GC).
  • the LTE network or the 5G network can obtain the context information of the terminal through the N26 interface, and the context information of the terminal can include the identity of the terminal. Information such as registration status, support capabilities, etc.
  • a mobility management entity (MME) and an access and mobility management function (AMF) can be interconnected through an N26 interface, and the N26 interface is Choose to exist.
  • MME mobility management entity
  • AMF access and mobility management function
  • the N26 interface can be a pure physical interface.
  • the N26 interface can also be a physical interface that is used by the protocol or the signaling.
  • the N26 interface can be a common network port provided by the external network, and then connected to the switch through the network cable, and finally connected to other devices through the switch; optionally, the N26 interface can be a network port or an optical port.
  • the access network device is mainly responsible for providing a wireless connection for the terminal device, and ensuring reliable transmission of uplink and downlink data of the terminal device.
  • the access network device in the LTE network is an evolved universal terrestrial radio access network (evolved universal) Terrestrial radio access network (EUTRAN), which is a network composed of multiple evolved base stations (eNodeBs) for implementing physical layer functions, resource scheduling and radio resource management, radio access control, and mobility management functions. .
  • EUTRAN evolved universal terrestrial radio access network
  • the eNodeBs can be connected through an X2 interface and transmit data based on the X2 interface.
  • the eNodeB is connected to the serving gateway (SGW) through the user plane interface S1-U, and uses the GPRS tunneling protocol user plane (GTP-U) to transmit user plane data; the EUTRAN passes the control plane interface S1-MME. Connected to a mobility management entity (MME).
  • SGW serving gateway
  • GTP-U GPRS tunneling protocol user plane
  • MME mobility management entity
  • the access network device includes a base station, and specifically includes, but is not limited to, a next-generation base station (g NodeB, gNB), an evolved Node B (eNB), and a radio network controller in the 5G ( Radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved node B, or Home) Node B, HNB), baseband unit (BBU), transmission and receiving point (TRP), transmitting point (TP), mobile switching center, and the like.
  • RNC Radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • HNB home base station
  • BBU baseband unit
  • TRP transmission and receiving point
  • TP transmitting point
  • mobile switching center and the like.
  • a terminal device may refer to a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a 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), with wireless communication.
  • FIG. 1 for convenience of description, only two terminal devices are illustrated, and a plurality of terminal devices may coexist in the actual communication network, and details are not described herein again.
  • the present application is not limited to the communication system architecture shown in FIG. 1, and can also be applied to other communication systems in the future, such as a 6G communication system architecture.
  • the names of the respective network elements used in the above application may remain the same in the future communication system, but the names may change.
  • FIG. 2 is a system architecture diagram of an application according to an embodiment of the present application.
  • the wireless communication system includes a public access network device network 210 that includes a radio access network (RAN) device communicably coupled to one or more cells.
  • the access network device communicates with the terminal 230 in a corresponding cell.
  • the cell shown in this embodiment refers to an area covered by a wireless signal in mobile communication.
  • the terminal 230 shown in this embodiment may access the cell of the access network device and communicate with the access network device.
  • the terminal 230 shown in this embodiment may be any terminal such as a mobile phone, a tablet computer, a PDA (personal digital assistant), a vehicle-mounted computer, or the like.
  • the RAN device corresponds to different devices in different systems, such as a second generation mobile telephone technology (2G) corresponding base station and a base station controller, in the third generation mobile communication technology (3rd-generation)
  • 2G second generation mobile telephone technology
  • 3rd-generation third generation mobile communication technology
  • the corresponding base station and the radio network controller correspond to the evolved node B (eNB) in the 4G, and correspond to the new radio node B (gNB) in the 5G.
  • the wireless communication system also includes a plurality of core networks for communicating with the access network devices.
  • the core network corresponds to different devices in different systems.
  • the first core network 221 shown in FIG. 2 is applied to the 4G, and the second core network 221 is an 4G core network (EPC).
  • the EPC may include a mobility management entity (MME), and/or a serving gate (S-GW), and/or a PDN gateWay (PDN), and/or a policy and charging rule.
  • Core network nodes such as a policy and charging rules function (PCRF);
  • the second core network 222 shown in FIG. 2 is applied in 5G, and the second core network 222 is a next generation core (NG-generation core, NG- Core).
  • PCRF policy and charging rules function
  • FIG. 3A is a schematic diagram of a hardware architecture of a terminal in an embodiment of the present application.
  • FIG. 3A is a block diagram showing a partial structure of a terminal related to a terminal provided by an embodiment of the present invention.
  • the terminal includes: a radio frequency (RF) circuit 310, a memory 320, an input unit 330, a display unit 340, a sensor 350, an audio circuit 360, a wireless fidelity (WiFi) module 370, and a processor 380. And power supply 390 and other components.
  • RF radio frequency
  • the RF circuit 310 can be used for transmitting and receiving information or during a call, and receiving and transmitting the signal. Specifically, after receiving the downlink information of the base station, the processor 380 processes the data. In addition, the uplink data is designed to be sent to the base station.
  • RF circuit 310 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
  • LNA Low Noise Amplifier
  • RF circuitry 310 can also communicate with the network and other devices via wireless communication.
  • the above wireless communication may use any communication standard or protocol, including but not limited to global system of mobile communication (GSM), general packet radio service (GPRS), code division multiple access (code division) Multiple access (CDMA), wideband code division multiple access (WCDMA), long term evolution (LTE), e-mail, short messaging service (SMS), and the like.
  • GSM global system of mobile communication
  • GPRS general packet radio service
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • SMS short messaging service
  • the memory 320 can be used to store software programs and modules, and the processor 380 executes various functional applications and data processing of the terminals by running software programs and modules stored in the memory 320.
  • the memory 320 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the terminal (such as audio data, phone book, etc.).
  • memory 320 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the input unit 330 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal.
  • the input unit 330 may include a touch panel 331 and other input devices 332.
  • the touch panel 331 also referred to as a touch screen, can collect touch operations on or near the user (such as a user using a finger, a stylus, or the like on the touch panel 331 or near the touch panel 331 Operation), and drive the corresponding connecting device according to a preset program.
  • the touch panel 331 can include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 380 is provided and can receive commands from the processor 380 and execute them.
  • the touch panel 331 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 330 may also include other input devices 332.
  • other input devices 332 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 340 can be used to display information input by the user or information provided to the user as well as various menus of the terminal.
  • the display unit 340 can include a display panel 341.
  • the display panel 341 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the touch panel 331 can cover the display panel 341. When the touch panel 331 detects a touch operation on or near it, the touch panel 331 transmits to the processor 380 to determine the type of the touch event, and then the processor 380 according to the touch event. The type provides a corresponding visual output on display panel 341.
  • the touch panel 331 and the display panel 341 are used as two independent components to implement input and input functions of the terminal, in some embodiments, the touch panel 331 may be integrated with the display panel 341. Realize the input and output functions of the terminal.
  • the terminal may also include at least one type of sensor 350, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 341 according to the brightness of the ambient light, and the proximity sensor may close the display panel 341 and/or when the terminal moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity.
  • the terminal can be used to identify the attitude of the terminal (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the terminal can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.
  • attitude of the terminal such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration
  • vibration recognition related functions such as pedometer, tapping
  • the terminal can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.
  • the audio circuit 360, the speaker 361, and the microphone 362 can provide an audio interface between the user and the terminal.
  • the audio circuit 360 can transmit the converted electrical data of the received audio data to the speaker 361 for conversion to the sound signal output by the speaker 361; on the other hand, the microphone 362 converts the collected sound signal into an electrical signal, by the audio circuit 360. After receiving, it is converted into audio data, and then processed by the audio data output processor 380, transmitted to the terminal, for example, via the RF circuit 310, or outputted to the memory 320 for further processing.
  • WiFi is a short-range wireless transmission technology
  • the terminal can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 370, which provides wireless broadband Internet access for users.
  • FIG. 3A shows the WiFi module 370, it can be understood that it does not belong to the necessary configuration of the terminal, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 380 is the control center of the terminal, which connects various parts of the entire terminal using various interfaces and lines, and executes by executing or executing software programs and/or modules stored in the memory 320, and calling data stored in the memory 320.
  • the processor 380 may include one or more processing units; preferably, the processor 380 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 380.
  • the terminal also includes a power source 390 (such as a battery) that supplies power to the various components.
  • a power source 390 such as a battery
  • the power source can be logically coupled to the processor 380 through a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the terminal may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
  • the processor 380 is configured to: when the terminal detects the first communication network, send a first registration request to the core network device of the first communication network; and receive the core network of the first communication network. a first registration result sent by the device, where the first registration result includes indication information about whether a network interface exists between the core network device of the first communication network and the core network device of the second communication network, where the network interface is used.
  • the core network device of the first communication network acquires the context of the terminal when the terminal is in the coverage area of the second communication network, or the network interface is used by the core network device of the second communication network Determining a context of the terminal when the terminal is in the coverage area of the first communication network; and performing switching between a single registration mode and a dual registration mode according to the indication information, where the single registration mode is in the first communication network Or in a mode in which the second communication network is registered, the dual registration mode is at least one of the first communication network and the second communication network.
  • the mode of registration is configured to: when the terminal detects the first communication network
  • the current working mode of the terminal is the single registration mode
  • the processor 380 is specifically configured to: if the terminal determines that the network interface does not exist according to the indication information, switch from the single registration mode to the dual registration mode.
  • the processor 380 is specifically configured to: when the terminal detects the second communication network, send a second registration request to the core network device of the second communication network in the dual registration mode; receive the second a second registration result sent by the core network device of the communication network;
  • the processor 380 is further configured to: when the terminal moves out of the coverage area of the first communication network, perform communication through the second communication network according to the second registration result.
  • the processor 380 is specifically configured to: if the terminal is in an idle state, initiate random access to the second communication network, and perform communication by using the second communication network according to the second registration result; or
  • the processor 380 is specifically configured to: when the terminal is in a connected state, switch from the first communication network to the second communication network under a handover indication of a core network device of the first communication network; The second registration result is communicated through the second communication network.
  • the current working mode of the terminal is a dual registration mode
  • the processor 380 is specifically configured to: if the terminal determines that the network interface exists according to the indication information, switch from the dual registration mode to the single registration mode.
  • the dual registration mode is a mode registered in the first communication network and the second communication network
  • the processor 380 is further configured to: when the terminal detects the second communication network, send a deregistration request to the core network device of the second communication network in the single registration mode; receive the second communication The result of the deregistration sent by the core network device of the network; when the terminal moves out of the coverage of the first communication network, the context information of the terminal is obtained from the first communication network through the network interface, the context The information includes an identity of the terminal, a registration status, and a terminal UE capability;
  • the processor 380 is further configured to perform communication through the second communication network according to the context information.
  • the processor 380 is specifically configured to: if the terminal is in an idle state, initiate random access to the second communication network, and perform communication by using the second communication network according to the context information; or
  • the processor 380 is specifically configured to: when the terminal is in a connected state, switch from the first communication network to the second communication network under a handover indication of a core network device of the first communication network; Context information is communicated over the second communication network.
  • the terminal when the terminal is in the single registration mode, and the network does not have the N26 interface, the terminal switches from the single registration mode to the dual registration mode, which can reduce the interoperation delay between the 5GC and the LTE; or, the terminal is In the dual registration mode, when the network has the N26 interface, the terminal switches from the dual registration mode to the single registration mode.
  • the terminal switches or reselects between 5GC and LTE, the N26 interface can obtain the context required for terminal communication. Switching the registration mode to single registration mode saves system resources.
  • the interoperation here includes handover between 5GC and LTE, cell reselection, and cell change.
  • FIG. 3B is a schematic diagram of a scenario applied to an embodiment of the present application.
  • the terminal When the terminal moves from the area (301) covered by the 5G signal and the 4G signal in the above FIG. 3B to the 4G signal coverage area (302), the terminal detects that the 5G signal is getting weaker. That is, when the terminal detects that the 5G signal is less than a certain threshold, or the terminal detects that the 5G signal is smaller than the threshold, and the 4G signal is greater than a certain threshold, the terminal reselects from the 5G cell to the 4G cell, and the terminal will occur. 5G to 4G different system reselection, the terminal eventually resides in the 4G cell. If the terminal does not perform a different system reselection, it may cause a network disconnection.
  • the first communication network is described by taking the N26 interface as an example of the LTE network and the network interface in the 5G network and the second communication network. If the terminal works in the single registration mode and the N26 interface does not exist on the network, the terminal can switch to the dual registration mode to reduce the delay of the inter-system interoperation. If the terminal works in the dual registration mode and the network has an N26 interface, the terminal can switch from the dual registration mode to the single registration mode, because the network can obtain the context of the terminal through the N26 interface, thereby saving system resources.
  • the terminal When the terminal reselects the system, when the terminal detects the fifth generation mobile communication 5G network, the terminal sends a first registration request to the 5G core network device; the terminal receives the first registration sent by the 5G core network device.
  • the first registration result includes indication information about whether the N26 interface exists between the 5G core network device and the Long Term Evolution (LTE) core network device; the terminal is in the single registration mode and the dual registration mode according to the indication information.
  • LTE Long Term Evolution
  • FIG. 4 is a schematic diagram of an embodiment of a method for switching a network registration mode according to an embodiment of the present disclosure, including:
  • the terminal currently works in a single registration mode.
  • the terminal may include, but is not limited to, a mobile phone, a tablet personal computer, a laptop computer, a digital camera, a personal digital assistant (PDA), and a navigation system.
  • a device a mobile internet device (MID) or a wearable device.
  • 5GC refers to the core network in the 5G system
  • EPC refers to the core network in the LTE system.
  • the terminal supports single registration mode and dual registration mode, and the terminal is initialized in the single registration mode when the terminal is powered on. That is, the terminal is currently working in single registration mode. In the embodiment of the present application, the terminal currently works in the 5GC NAS mode.
  • the terminal sends a first registration request to the 5GC.
  • the terminal detects a 5G network
  • the terminal sends a first registration request to the 5GC.
  • the scenario diagram applied in the embodiment of the present application includes the foregoing FIG. 3B.
  • 301 indicates an area covered by the 5G signal and the 4G signal.
  • the network preferentially used by the terminal is 5G. The network, therefore, when the terminal detects the 5G network, the terminal sends a first registration request to the 5GC.
  • the first registration request may carry information such as an identifier (ID), a channel capability parameter, and a registration type of the terminal.
  • the 5GC sends the first registration result to the terminal.
  • the 5GC After receiving the first registration request sent by the terminal, the 5GC sends a first registration result to the terminal according to the first registration request; the terminal receives the first registration result sent by the 5GC.
  • the first registration result may carry indication information about whether the registration is successful, the channel capability negotiated by the network and the terminal, the service that can be provided, the identity that the 5GC reassigns to the terminal, and whether the N26 interface exists in the network.
  • the terminal switches from the currently-registered single registration mode to the dual registration mode.
  • the first registration result may be indication information indicating that the network exists on the N26 interface, or may be indication information indicating that the network does not have the N26 interface.
  • the terminal may switch from the currently-registered single registration mode to the dual registration mode, where the first registration result is a registration result sent by the 5GC according to the first registration request of the terminal.
  • the first registration result is a registration result sent by the 5GC according to the first registration request of the terminal.
  • the terminal If the terminal detects the LTE network, the terminal initiates a second registration request to the EPC in the dual registration mode.
  • the terminal does not know whether it exists or not, and needs to be detected. If the terminal detects the LTE network, the terminal initiates a second registration request to the EPC in the dual registration mode.
  • the terminal when the terminal sends the second registration request to the EPC, the 5GC and the LTE interoperate, and in the present application, before the 5GC and the LTE interoperate, the registration request is sent to the 5GC, so When the 5GC and the LTE interoperate, the signaling transmission for sending the registration request is reduced, and the delay of interworking between the 5GC and the LTE can be reduced.
  • the EPC sends a second registration result to the terminal.
  • the EPC After receiving the second registration request sent by the terminal, the EPC sends a second registration result to the terminal according to the second registration request; the terminal receives the second registration result sent by the EPC.
  • the second registration result can be understood as completing the registration information.
  • the second registration result may carry indication information about whether the registration is successful, a channel capability negotiated by the network and the terminal, a service that can be provided, an identity that the EPC reassigns to the terminal, and the like.
  • the terminal When the terminal moves out of the coverage area of the 5G network, the terminal performs communication through the LTE network according to the second registration result.
  • the terminal When the terminal moves out of the coverage area of the 5G network and moves to only the coverage of the LTE network, the terminal communicates through the LTE network according to the second registration result.
  • the terminal by using the LTE network to communicate according to the second registration result, may include:
  • the terminal initiates random access to the LTE network, and performs communication through the LTE network according to the second registration result.
  • the terminal reselects the LTE network by itself, and the terminal initiates random access to the LTE network for tracking area update (TAU), and according to the The second registration result is communicated through the LTE network.
  • TAU tracking area update
  • the terminal when the terminal is in a connected state, switches from the 5G network to the LTE network under a handover indication of the 5G core network device; the terminal passes the second registration result according to the second registration result
  • the LTE network communicates.
  • the terminal when the terminal is in the connected state, the terminal receives the switching instruction sent by the 5GC; the terminal switches from the 5G network to the LTE network according to the switching instruction, and the terminal performs communication through the LTE network according to the second registration result, and the terminal does not
  • the LTE network initiates random access and only updates the tracking area.
  • the terminal switches to the dual registration mode when the network does not have the N26 interface in the single registration mode, and the terminal registers in both the 5GC and the LTE, and the terminal needs to reselect from the 5GC or switch to the LTE. No need to send a registration request to the EPC, only need to initiate a handover, which reduces the delay of the terminal in 5GC and LTE interoperation.
  • FIG. 5 is a schematic diagram of another embodiment of a method for switching a network registration mode according to an embodiment of the present disclosure, including:
  • the terminal currently works in single registration mode.
  • the terminal sends a first registration request to the 5GC.
  • the 5GC sends the first registration result to the terminal.
  • the steps 501 to 503 are the same as the steps 401 to 403 in the embodiment shown in FIG. 4, and details are not described herein again.
  • the terminal determines that the N26 interface exists according to the first registration result, the terminal maintains the single registration mode.
  • the network information can be synchronized between the networks through the N26 interface. For example, when the terminal reselects from the 5GC to the EPC, the terminal does not need to re-register with the EPC.
  • the EPC can be accessed through the N26 interface.
  • the 5GC obtains the context information of the terminal, and the terminal maintains the single registration mode of the current work.
  • the first registration result is a registration result sent by the 5GC according to the registration request of the terminal.
  • the first registration result may carry indication information about whether the registration is successful, the channel capability negotiated by the network and the terminal, the service that can be provided, the identity identifier re-allocated by the 5GC for the terminal, and the indication information of the N26 interface in the network. .
  • the terminal When the terminal moves out of the coverage area of the 5G network in the single registration mode, the terminal performs communication through the LTE network.
  • the terminal When the terminal moves out of the coverage area of the 5G network and moves to the coverage of only the LTE network, the terminal does not need to re-register with the LTE core network device, and the LTE core network device can obtain the context of the terminal from the 5G core network device through the N26 interface. Information, the terminal communicates over the LTE network in a single registration mode based on the context information.
  • the terminal determines that the network has the N26 interface in the single registration mode, before the 5GC and the LTE interoperation, because the registration result fed back by the 5GC to the terminal indicates that the network has the N26 interface, then the 5GC and the LTE core network
  • the device can exchange the context information of the terminal through the N26 interface. Therefore, the terminal does not need to send a registration request to the core network device.
  • the terminal interoperates between the 5GC and the LTE, the terminal only needs to initiate the handover, which reduces the terminal interoperation between the 5GC and the LTE. Delay.
  • FIG. 6 is a schematic diagram of another embodiment of a method for switching a network registration mode according to an embodiment of the present disclosure, including:
  • the terminal currently works in the dual registration mode.
  • the terminal supports single registration mode and dual registration mode, and is initialized in single operation mode at power on. Then, some work is done and currently works in dual registration mode.
  • the dual registration mode is registered in the 5GC NAS mode and the EPC NAS mode by default.
  • the terminal sends a registration request to the 5GC.
  • the 5GC sends the registration result to the terminal.
  • the terminal determines that the N26 interface exists according to the registration result, the terminal switches from the currently working dual registration mode to the single registration mode.
  • the context information of the terminal can be exchanged between the different system network devices, that is, the 5GC and the EPC, for example, when the terminal switches from the 5G network to the 4G network, the EPC can be accessed through the N26 interface.
  • the 5GC obtains the context information of the terminal. Therefore, the terminal can access the 4G network for communication without registering with the EPC. Therefore, the terminal can switch from the current dual registration mode to the single registration mode.
  • the information about the registration result refer to the information. The description of the above step 603 will not be repeated here.
  • the terminal If the terminal detects the LTE network, the terminal sends a deregistration request to the evolved packet core network EPC in the single registration mode.
  • the terminal does not know whether it exists or not, and needs to be detected. If the terminal detects the LTE network, the terminal initiates a deregistration request to the EPC in the single registration mode.
  • the terminal receives the de-registration result sent by the EPC.
  • the EPC After receiving the deregistration request sent by the terminal, the EPC sends a deregistration result to the terminal according to the deregistration request; the terminal receives the deregistration result sent by the EPC.
  • the registration result can carry an indication of whether the registration is successful.
  • the communication is performed through the LTE network.
  • the terminal When the terminal moves out of the coverage of the 5G network, the terminal acquires the identity information of the terminal and the context information of the support capability from the 5G network through the N26 interface; the terminal passes the The LTE network communicates.
  • the terminal by using the LTE network to communicate according to the context information, may include:
  • the terminal initiates random access to the LTE network, and performs communication through the LTE network according to the context information.
  • the terminal reselects the LTE network by itself, and the terminal initiates random access to the LTE network for tracking area update (TAU), and according to the The context information is communicated over the LTE network.
  • TAU tracking area update
  • the terminal when the terminal is in a connected state, switches from the 5G network to the LTE network under a handover indication of the 5G core network device; the terminal passes the LTE according to the context information.
  • the network communicates.
  • the terminal when the terminal is in a connected state, the terminal receives a handover instruction sent by the 5GC; the terminal switches from the 5G network to the LTE network according to the handover instruction, where the terminal is configured according to the
  • the context information is communicated through the LTE network, and the terminal does not initiate random access to the LTE network, and only performs tracking area update.
  • the terminal since the terminal is in the dual registration mode and determines that the N26 interface exists, the terminal switches from the dual registration mode to the single registration mode, and registration is not required in both the 5GC and the EPC, thereby saving system resources.
  • FIG. 7 is a schematic diagram of another embodiment of a method for switching a network registration mode according to an embodiment of the present disclosure, including:
  • the terminal currently works in dual registration mode.
  • the terminal sends a registration request to the 5GC.
  • 5GC send the registration result to the terminal.
  • the steps 701 to 703 are the same as the steps 601 to 603 in the embodiment shown in FIG. 6 , and details are not described herein again.
  • the terminal determines, according to the registration result, that the N26 interface does not exist, the terminal maintains the dual registration mode.
  • the registration result is the registration result sent by the 5GC according to the registration request of the terminal.
  • the registration result may carry the indication information of whether the registration is successful, the channel capability negotiated by the network and the terminal, the available service, the identity re-allocated by the 5GC for the terminal, and the indication information of the N26 interface in the network.
  • the current dual registration mode can be considered as the terminal initiates registration with the 5G core network device, and also initiates registration with the LTE core network device.
  • the terminal When the terminal moves out of the coverage area of the 5G network in the dual registration mode, the terminal communicates through the LTE network.
  • the terminal may communicate by using the LTE network, and may include: when the terminal is in an idle state or a connected state, and the coverage area of the 5G network is removed, the terminal The terminal reselects the LTE network, and the terminal initiates random access to the LTE network for tracking area update (TAU), and performs communication through the LTE network.
  • TAU tracking area update
  • the terminal After the terminal is in the coverage of the LTE network, if the terminal is in the idle state, the terminal releases the connection and is in the idle state again; if the terminal is in the connected state before, the terminal does not release the connection and continues to be in the connected state.
  • FIG. 8A is a schematic diagram of an embodiment of a terminal, which may include:
  • the sending module 801 is configured to: when the terminal detects the first communications network, send a first registration request to the core network device of the first communications network;
  • the receiving module 802 is configured to receive a first registration result sent by the core network device of the first communication network, where the first registration result includes whether a network interface exists between the core network device of the first communication network and the core network device of the second communication network. And the network interface is used by the core network device of the first communication network to acquire the context of the terminal when the terminal is in the coverage area of the second communication network, or the network interface is used by the core network device of the second communication network to acquire the terminal in the first communication. The context of the terminal when the network covers the area;
  • the switching module 803 is configured to complete switching between the single registration mode and the dual registration mode according to the indication information, where the single registration mode is a mode registered in the first communication network or in the second communication network, and the dual registration mode is in the first communication mode. A mode registered in at least one of the network and the second communication network.
  • the current working mode of the terminal is a single registration mode
  • the switching module 803 is specifically configured to switch from the single registration mode to the dual registration mode if the terminal determines that the network interface does not exist according to the indication information.
  • FIG. 8B is a schematic diagram of another embodiment of the terminal, the terminal further includes: a communication module 804;
  • the sending module 801 is specifically configured to: when the terminal detects the second communication network, send a second registration request to the core network device of the second communication network in the dual registration mode;
  • the receiving module 802 is specifically configured to receive a second registration result sent by the core network device of the second communications network.
  • the communication module 804 is configured to perform communication through the second communication network according to the second registration result when the terminal moves out of the coverage area of the first communication network.
  • the communication module 804 is specifically configured to: if the terminal is in an idle state, initiate random access to the second communication network, and perform communication according to the second registration result by using the second communication network;
  • the communication module 804 is specifically configured to: when the terminal is in the connected state, switch from the first communication network to the second communication network under the handover indication of the core network device of the first communication network; and perform the second communication network according to the second registration result. Communication.
  • the current working mode of the terminal is a dual registration mode
  • the switching module 803 is specifically configured to switch from the dual registration mode to the single registration mode if the terminal determines that the network interface exists according to the indication information.
  • 8C is a schematic diagram of another embodiment of the terminal, the terminal further includes: an obtaining module 805;
  • the sending module 801 is further configured to: when the terminal detects the second communication network, send a deregistration request to the core network device of the second communication network in the single registration mode;
  • the receiving module 802 is further configured to receive a de-registration result sent by the core network device of the second communication network;
  • the obtaining module 805 is configured to: when the terminal moves out of the coverage of the first communications network, obtain the context information of the terminal from the first communications network by using the network interface, where the context information includes the identity, the registration state, and the terminal UE capability of the terminal;
  • the communication module 804 is configured to perform communication through the second communication network according to the context information.
  • the communication module 804 is specifically configured to: if the terminal is in an idle state, initiate random access to the second communication network, and perform communication according to the context information through the second communication network;
  • the communication module 804 is specifically configured to: when the terminal is in the connected state, switch from the first communication network to the second communication network under the handover indication of the core network device of the first communication network; and communicate according to the context information through the second communication network.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the embodiment of the present application also provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform one or more of the steps described above.
  • the constituent modules of the above signal processing device may be stored in the computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé de commutation de mode d'enregistrement de réseau, qui est mis en œuvre par un terminal pour réduire le retard systématique d'interfonctionnement et pour économiser des ressources de système. Le procédé, selon les modes de réalisation de la présente invention, comprend les étapes suivantes : lorsqu'un terminal détecte un premier réseau de communication, le terminal envoie une première demande d'enregistrement à un dispositif de réseau central du premier réseau de communication; le terminal reçoit un premier résultat d'enregistrement envoyé par le dispositif de réseau central du premier réseau de communication, le premier résultat d'enregistrement comprenant des informations d'indication sur la présence éventuelle d'une interface de réseau entre le dispositif de réseau central du premier réseau de communication et un dispositif de réseau central d'un second réseau de communication; le terminal effectue une commutation entre un mode d'enregistrement unique et un mode d'enregistrement double en fonction des informations d'indication, le mode d'enregistrement unique étant un mode dans lequel le terminal est enregistré dans le premier réseau de communication ou dans le second réseau de communication, et le mode d'enregistrement double étant un mode dans lequel le terminal est enregistré dans le premier réseau de communication et/ou dans le second réseau de communication.
PCT/CN2018/125190 2018-01-24 2018-12-29 Procédé et terminal de commutation de mode d'enregistrement de réseau Ceased WO2019144768A1 (fr)

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