WO2023272670A1 - Procédé de connexion réseau, appareil et système - Google Patents

Procédé de connexion réseau, appareil et système Download PDF

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Publication number
WO2023272670A1
WO2023272670A1 PCT/CN2021/103899 CN2021103899W WO2023272670A1 WO 2023272670 A1 WO2023272670 A1 WO 2023272670A1 CN 2021103899 W CN2021103899 W CN 2021103899W WO 2023272670 A1 WO2023272670 A1 WO 2023272670A1
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WIPO (PCT)
Prior art keywords
usim
identifier
network element
access network
indication information
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PCT/CN2021/103899
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English (en)
Chinese (zh)
Inventor
应江威
杨艳梅
陈磊
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华为技术有限公司
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Priority to PCT/CN2021/103899 priority Critical patent/WO2023272670A1/fr
Publication of WO2023272670A1 publication Critical patent/WO2023272670A1/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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the technical field of communications, and in particular to a network connection method, device and system.
  • the terminal device may include one or more universal subscriber identifier modules (universal subscriber identifier module, USIM), and a terminal device including multiple USIMs may be called a multi-USIM terminal device.
  • USIM universal subscriber identifier module
  • a terminal device including multiple USIMs may be called a multi-USIM terminal device. If multiple USIMs of the terminal device communicate with the same base station, the multiple USIMs will establish multiple communication connections with the base station, that is, each of the multiple USIMs establishes a communication connection with the base station.
  • a multi-USIM terminal device with limited sending and receiving capabilities when multiple USIMs have service sending and receiving requirements at the same time, only one of the USIMs can perform service sending and receiving.
  • the terminal device cannot simultaneously establish and maintain a communication connection for each USIM, thereby affecting user experience.
  • the terminal device cannot simultaneously establish and maintain a communication connection for each USIM, thereby affecting user experience.
  • maintaining two communication connections will consume more power of the terminal device, and will also impact the communication connection of the base station. capacity and cause base station congestion. Therefore, when multiple USIMs in a multi-USIM terminal device simultaneously execute multiple services to transmit and receive, how to reduce the energy consumption of the terminal device, as well as reduce the impact on the communication connection capacity of the base station and the congestion of the base station, has become an urgent technology to be solved at the current stage. question.
  • the embodiment of the present application provides a method, device and system for network connection, which can be implemented as a multi-USIM terminal with limited transceiving capability to simultaneously execute the transceiving of each USIM service, reducing the energy consumption of the terminal, and reducing the communication connection to the base station Capacity shock and base station congestion.
  • a network connection method is provided, the method is applied to a communication device, the communication device may be a terminal device or a chip in the terminal device, the communication device includes a first universal subscriber identity module USIM and a second USIM, the method Including: receiving a network identifier from an access network device, where the network identifier is used to identify one or more networks supported by the access network device; when the first USIM and the second USIM belong to one or more networks, sending a first message , the first message includes first indication information, where the first indication information is used to indicate that the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device.
  • the terminal device can acquire the network identifier used to identify one or more networks supported by the access network device from the access network device, so that the terminal device can obtain the first USIM and the second USIM included in the terminal device.
  • the USIM belongs to one or more networks supported by the access network device
  • the same instruction information enables multiple UIMs to establish the same control plane connection with the access network equipment, thereby reducing communication connection capacity, reducing network congestion, improving communication capabilities, and reducing energy consumption of terminal equipment.
  • the method further includes: determining that the first USIM and the second USIM belong to one or more networks.
  • sending the first message includes: sending the first message through the first control plane connection.
  • the first message further includes a second routing identifier, and the second routing identifier is used to address the second mobility management network element.
  • the terminal device sends the second routing identifier to the access network device through the first control plane connection, so that the access network device can select the corresponding AMF network element or the second USIM according to the second routing identifier. network to register the second USIM.
  • sending the first message includes: sending the first message to the access network device, where the first message includes: a second NAS request message, a third NAS request message, a first route identifier and a second route identifier, and the second
  • the NAS request message is used to request registration of the first USIM
  • the third NAS request message is used to request registration of the second USIM
  • the first routing identifier is used to address the first mobility management network element
  • the second routing identifier is used to address the second USIM. Mobility management network element.
  • the terminal device sends the second NAS request message, the third NAS request message, the first route identifier and the second route identifier to the access network device, so that the access network device can send the core NAS request message according to the route identifier.
  • the network device sends a NAS request message, so that the USIM can be registered, and then different USIMs can enter the connected state synchronously when they are in the idle state.
  • the first indication information is the identifier of the first USIM and the identifier of the second USIM
  • sending the first message includes: sending the fourth NAS request message, the fifth NAS request message, and the first routing identifier to the access network device and the second routing identifier; the fourth NAS request message includes the first indication information, the fifth NAS request message includes the first indication information, the fourth NAS request message is used to request registration of the first USIM, and the fifth NAS request message is used to request registration
  • the first routing identifier is used to address the first mobility management network element
  • the second routing identifier is used to address the second mobility management network element.
  • the terminal device sends the fourth NAS request message, the fifth NAS request message, the first route identifier and the second route identifier to the access network device, so that the access network device can send the core NAS request message according to the route identifier.
  • the network device sends a NAS request message, so that the USIM can be registered, and then different USIMs can enter the connected state synchronously when they are in the idle state.
  • the first indication information is the identity of the first USIM and the identity of the second USIM, so that the core network equipment can implicitly authorize the access network equipment to associate the context information of different USIMs according to the identity of the first USIM and the identity of the second USIM , so as to realize the establishment of the same control plane connection between multiple universal subscriber identity modules and access network equipment, thereby reducing communication connection capacity, reducing network congestion, improving communication capabilities and reducing energy consumption of terminal equipment.
  • a network connection method is provided, the method is applied to an access network device, and the method includes: sending a network identifier to a terminal device, where the network identifier is used to identify one or more networks supported by the access network device, and the terminal The device includes a first USIM and a second USIM, and the first USIM and the second USIM belong to one or more networks; receiving a first message from the terminal device, the first message includes first indication information, and the first indication information is used to indicate the first
  • the first control plane connection between the USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device.
  • the terminal device can acquire the network identifier used to identify one or more networks supported by the access network device from the access network device, so that the terminal device can obtain the first USIM and the second USIM included in the terminal device.
  • the USIM belongs to one or more networks supported by the access network device
  • the same instruction information enables multiple UIMs to establish the same control plane connection with the access network equipment, thereby reducing communication connection capacity, reducing network congestion, improving communication capabilities, and reducing energy consumption of terminal equipment.
  • receiving the first message from the terminal device includes: receiving the first message from the terminal device through the first control plane connection.
  • the method further includes: associating the first context information of the first USIM with the first context information of the second USIM according to the first indication information.
  • the access network device can associate the first context information of the first USIM with the first context information of the second USIM according to the first indication information, thereby realizing Multiple UIMs and access network equipment establish the same control plane connection, thereby reducing communication connection capacity, reducing network congestion, improving communication capabilities, and reducing energy consumption of terminal equipment.
  • the method further includes: the first message further includes a second routing identifier, and the second routing identifier is used to address the second mobility management network element; sending the message to the second mobility management network element according to the second routing identifier
  • the first indication information and one or more of the following items: the first USIM identifier or the next generation application protocol NGAP identifier of the first USIM, and the NGAP identifier of the first USIM is allocated by the access network equipment for the first USIM An identifier of an NGAP signaling connection between the first mobility management network elements.
  • the access network device can receive the second routing identifier from the terminal device through the first control plane connection, so that the access network device can send the first instruction to the second AMF network element according to the second routing identifier Information and one or more of the following: the first USIM's identity or the first USIM's NGAP identity, so that the second AMF network element can be used according to the first indication information and the following one or more: the first USIM's identity or the first USIM's NGAP identity
  • the NGAP identity of a USIM is authorized, which enables multiple universal subscriber identity modules to establish the same control plane connection with the access network equipment when the core network authorization is passed, thereby reducing the communication connection capacity, reducing network congestion, and improving Communication capability and reduced energy consumption of terminal equipment.
  • the method further includes: receiving second indication information from the second mobility management network element, the second indication information being used to instruct the second mobility management network element to allow the second USIM and the first USIM to share the same control plane connection ; According to the secondary indication information, associate the first context information of the first USIM with the first context information of the second USIM.
  • the access network device can obtain the second indication information from the second AMF network element, so that the access network device can combine the first context information of the first USIM with the second indication information item according to the second indication information item.
  • the first context information of the two USIMs is associated, so as to realize the establishment of the same control plane connection between multiple Universal Subscriber Identity Modules and access network equipment when the core network authorization is passed, thereby reducing the communication connection capacity, reducing network congestion, and improving The communication capability is improved and the energy consumption of the terminal equipment is reduced.
  • the second indication information is the identifier of the first USIM and/or the NGAP identifier of the first USIM.
  • the method further includes: the first message further includes: a second NAS request message, a third NAS request message, a first route identifier, and a second route identifier, the second NAS request message is used to register the first USIM, and the second NAS request message is used to register the first USIM.
  • Three NAS request messages are used to register the second USIM, the first routing identifier is used to address the first mobility management network element, and the second routing identifier is used to address the second mobility management network element;
  • the first mobility management network element sends the second NAS request message, the first indication information, and one or more of the following: the identity of the second USIM or the NGAP identity of the second USIM, and the NGAP identity of the second USIM is an access network device
  • the access network device can send the NAS request message, the first indication information and one or more of the following to the AMF network element according to the routing identifier obtained from the terminal device: the identifier of the first USIM or the identifier of the first USIM An NGAP identifier of the USIM, so that the AMF network element can perform authorization.
  • the method further includes: the first indication information is an identifier of the first USIM and an identifier of the second USIM, and the first message further includes: the fourth NAS request message, the fifth NAS request message, the first routing identifier, and the second USIM Two routing identifiers; the fourth NAS request message includes the first indication information, the fifth NAS request message includes the first indication information, the fourth NAS request message is used to request registration of the first USIM, and the fifth NAS request message is used to request registration of the second USIM.
  • the first routing identifier is used to address the first mobility management network element, and the second routing identifier is used to address the second mobility management network element; according to the first routing identifier, the fourth routing identifier is sent to the first mobility management network element NAS request message: sending a fifth NAS request message to the second mobility management network element according to the second route identifier.
  • the access network device can send a NAS request message to the AMF network element according to the identifier of the USIM, so that the AMF network element can perform authorization.
  • the method further includes: receiving third indication information from the first mobility management network element, where the third indication information is used to instruct the first mobility management network element to allow the first USIM and the second USIM to share the same control plane connection ; Receive second indication information from the second mobility management network element, the second indication information is used to indicate that the second mobility management network element allows the second USIM to share the same control plane connection with the first USIM; according to the third indication information and the first USIM Two indication information, associating the first context information of the first USIM with the first context information of the second USIM.
  • the access network device can obtain the indication information from the AMF network element indicating that the AMF network element is allowed to share the same control plane connection, so that the access network device can send the first USIM to the USIM according to the obtained indication information.
  • the first context information of the second USIM is associated with the first context information of the second USIM, so that multiple universal subscriber identity modules can establish the same control plane connection with the access network equipment when the core network authorization is passed, thereby reducing the communication connection capacity , Reduce network congestion, improve communication capabilities and reduce energy consumption of terminal equipment.
  • the method further includes: receiving first credential information from the terminal device, where the first credential information is used to indicate that the first network allows the first USIM and the second USIM to share the same control plane connection, and the first USIM belongs to the first network; According to the first credential information, the first context information of the first USIM is associated with the first context information of the second USIM.
  • the access network device can obtain credential information, so that the access network device can associate the first context information of the first USIM with the first context information of the second USIM according to the credential information, so as to achieve
  • the core network authorization is passed, multiple UIMs and access network devices establish the same control plane connection, thereby reducing communication connection capacity, reducing network congestion, improving communication capabilities, and reducing energy consumption of terminal equipment.
  • a network connection method is provided, the method is applied to a mobility management network element, and the method includes: receiving a first message, where the first message includes first indication information, and the first indication information is used to indicate the first USIM
  • the first control plane connection with the access network device is the same as the second control plane connection between the second USIM and the access network device; according to the first indication information and the subscription information of the second USIM, send the second indication to the access network device information, and the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the AMF network element can receive from the access network device the information used to indicate that the first USIM and the first control plane of the access network device are connected to the second USIM and the second control plane of the access network device The same information is connected, so that the AMF network element can send the same information to the access network device to allow the first control plane connection and the second control plane connection according to the obtained information and the subscription information of the USIM, thereby realizing the AMF network element.
  • Authorization so that the access network device can allow multiple USMs to share the same control plane connection according to the authorization of the AMF network element.
  • the subscription information of the second USIM is used to indicate that the first USIM and the second USIM are allowed to share the same control plane connection.
  • sending the second indication information to the access network device according to the first indication information and the subscription information of the second USIM includes: The USIM shares the same control plane connection; and sends the second indication information to the access network device.
  • the mobility management network element determines that the first USIM and the second USIM are allowed to share the same control plane connection according to the first indication information and the subscription information of the second USIM, and further realizes the AMF network element Authorization, so that the access network device can allow multiple USMs to share the same control plane connection according to the authorization of the AMF network element.
  • the second indication information includes one or more of the following: the identity of the first USIM or the NGAP identity of the first USIM; the NGAP identity of the first USIM is allocated by the access network device for the first USIM to establish a communication with the first USIM.
  • the method further includes: associating the identifier of the first USIM and/or the NGAP identifier of the first USIM with the second context information of the second USIM according to the first indication information and the subscription information of the second USIM.
  • the method further includes: sending second credential information to the terminal device, where the second credential information is used to indicate that the second network allows the second USIM to share the same control plane connection as the first USIM, and the second USIM belongs to the second network.
  • the method further includes: receiving first credential information from the terminal device, where the first credential information is used to indicate that the first network allows the first USIM and the second USIM to share the same control plane connection, and the first USIM belongs to the first network; Associating the first credential information with the second context information of the second USIM.
  • a communication device may be a terminal device or a chip in the terminal device.
  • the communication device includes a first universal subscriber identity module USIM and a second USIM.
  • the communication device includes a transceiver module, a transceiver module for Receive a network identifier from the access network device, where the network identifier is used to identify one or more networks supported by the access network device; when the first USIM and the second USIM belong to one or more networks, send the first message, and the second USIM
  • a message includes first indication information, where the first indication information is used to indicate that the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device.
  • the communication device further includes a processing module, configured to determine that the first USIM and the second USIM belong to one or more networks.
  • the transceiver module when sending the first message, is configured to send the first message through the first control plane connection.
  • the first message further includes a second routing identifier, and the second routing identifier is used to address the second mobility management network element.
  • the transceiver module when sending the first message, is configured to send the first message to the access network device, where the first message includes: the second NAS request message, the third NAS request message, the first routing identifier, and the second Routing identifier, the second NAS request message is used to request registration of the first USIM, the third NAS request message is used to request registration of the second USIM, the first routing identifier is used to address the first mobility management network element, and the second routing identifier is used for addressing the second mobility management network element.
  • the first message includes: the second NAS request message, the third NAS request message, the first routing identifier, and the second Routing identifier
  • the second NAS request message is used to request registration of the first USIM
  • the third NAS request message is used to request registration of the second USIM
  • the first routing identifier is used to address the first mobility management network element
  • the second routing identifier is used for addressing the second mobility management network element.
  • the first indication information is the identity of the first USIM and the identity of the second USIM.
  • the transceiver module is configured to send the fourth NAS request message and the fifth NAS request message to the access network device , the first routing identifier and the second routing identifier; the fourth NAS request message includes the first indication information, the fifth NAS request message includes the first indication information, the fourth NAS request message is used to request registration of the first USIM, the fifth NAS request The message is used to request registration of the second USIM, the first routing identifier is used to address the first mobility management network element, and the second routing identifier is used to address the second mobility management network element.
  • the fifth aspect provides an access network device.
  • the access network device includes a transceiver module, and the transceiver module is configured to send a network identifier to a terminal device.
  • the network identifier is used to identify one or more networks supported by the access network device.
  • the terminal device Including a first USIM and a second USIM, the first USIM and the second USIM belong to one or more networks; receiving a first message from the terminal device, the first message includes first indication information, and the first indication information is used to indicate the first USIM
  • the first control plane connection with the access network device is the same as the second control plane connection between the second USIM and the access network device.
  • the transceiver module when receiving the first message from the terminal device, is configured to receive the first message from the terminal device through the first control plane connection.
  • the access network device further includes a processing module, configured to associate the first context information of the first USIM with the first context information of the second USIM according to the first indication information.
  • the first message also includes a second routing identifier, and the second routing identifier is used to address the second mobility management network element; the transceiver module is also used to send the second routing identifier to the second mobility management network element Send the first indication information and one or more of the following items: the first USIM's identity or the first USIM's next-generation application protocol NGAP identity, and the first USIM's NGAP identity is allocated by the access network device for the first USIM to establish An identifier of an NGAP signaling connection with the first mobility management network element.
  • the transceiver module is further configured to receive second indication information from the second mobility management network element, where the second indication information is used to indicate that the second mobility management network element allows the second USIM to share the same control plane as the first USIM Connecting: associating the first context information of the first USIM with the first context information of the second USIM according to the second indication information.
  • the second indication information is the identifier of the first USIM and/or the NGAP identifier of the first USIM.
  • the first message further includes: a second NAS request message, a third NAS request message, a first route identifier and a second route identifier, the second NAS request message is used to register the first USIM, and the third NAS request message uses For registration of the second USIM, the first routing identifier is used to address the first mobility management network element, and the second routing identifier is used to address the second mobility management network element; the transceiver module is also used to Send the second NAS request message, the first indication information, and one or more of the following to the first mobility management network element: the identity of the second USIM or the NGAP identity of the second USIM, where the NGAP identity of the second USIM is the access network
  • the device assigns to the second USIM an identifier for establishing an NGAP signaling connection with the second mobility management network element; sends a third NAS request message to the second mobility management network element according to the second routing identifier, the first Indication information and one or more of the following: the first USIM's identity
  • the first indication information is the identifier of the first USIM and the identifier of the second USIM
  • the first message further includes: a fourth NAS request message, a fifth NAS request message, a first route identifier and a second route identifier
  • the four NAS request messages include the first indication information
  • the fifth NAS request message includes the first indication information
  • the fourth NAS request message is used to request registration of the first USIM
  • the fifth NAS request message is used to request registration of the second USIM
  • the first route The identifier is used to address the first mobility management network element
  • the second routing identifier is used to address the second mobility management network element
  • the transceiver module is configured to send the fourth routing identifier to the first mobility management network element according to the first routing identifier.
  • NAS request message sending a fifth NAS request message to the second mobility management network element according to the second route identifier.
  • the access network device further includes a processing module, a transceiver module, and is further configured to receive third indication information from the first mobility management network element, where the third indication information is used to instruct the first mobility management network element to allow the first The USIM and the second USIM share the same control plane connection; receive second indication information from the second mobility management network element, and the second indication information is used to instruct the second mobility management network element to allow the second USIM and the first USIM to share the same control plane connection; Surface connection; a processing module, configured to associate the first context information of the first USIM with the first context information of the second USIM according to the third indication information and the second indication information.
  • the access network device further includes a processing module, a transceiver module, and is further configured to receive first credential information from the terminal device, where the first credential information is used to indicate that the first network allows the first USIM and the second USIM to share the same control plane connection, the first USIM belongs to the first network; the processing module is configured to associate the first context information of the first USIM with the first context information of the second USIM according to the first credential information.
  • a mobility management network element includes a transceiver module, the transceiver module is configured to receive a first message, the first message includes first indication information, and the first indication information is used to indicate the first
  • the first control plane connection between the USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device; according to the first indication information and the subscription information of the second USIM, send the second The indication information, where the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the subscription information of the second USIM is used to indicate that the first USIM and the second USIM are allowed to share the same control plane connection.
  • the transceiver module when sending the second indication information to the access network device according to the first indication information and the subscription information of the second USIM, is configured to determine, according to the first indication information and the subscription information of the second USIM, that the second USIM is allowed to A USIM and a second USIM share the same control plane connection; and send second indication information to the access network device.
  • the second indication information includes one or more of the following: the identity of the first USIM or the NGAP identity of the first USIM; the NGAP identity of the first USIM is allocated by the access network device for the first USIM to establish a communication with the first USIM.
  • the second mobility management network element further includes a processing module, configured to combine the identifier of the first USIM and/or the NGAP identifier of the first USIM with the identifier of the first USIM according to the first indication information and the subscription information of the second USIM.
  • the second context information of the two USIMs is associated.
  • the transceiver module is further configured to send second credential information to the terminal device, the second credential information is used to indicate that the second network allows the second USIM to share the same control plane connection with the first USIM, and the second USIM belongs to the second network .
  • the second mobility management network element further includes a processing module, a transceiver module, and is further configured to receive first credential information from the terminal device, where the first credential information is used to indicate that the first network allows the first USIM to be shared with the second USIM The same control plane connection, the first USIM belongs to the first network; the processing module is configured to associate the first credential information with the second context information of the second USIM.
  • the first control plane connection and the second control plane connection are radio resource control RRC connections.
  • the first message is used to establish the second control plane connection.
  • the first message is further used to establish the first control plane connection.
  • a communication device including a processor, a memory, an input interface, and an output interface.
  • the input interface is used to receive information from other communication devices other than the communication device, and the output interface is used to send information to other communication devices other than the communication device.
  • the communication device outputs information, and the processor invokes the computer program stored in the memory to implement the method according to any one of the first aspect, the second aspect, or the third aspect.
  • the communication device may be a chip or a device including a chip that implements the method in any one of the first aspect, the second aspect, or the third aspect.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of the first aspect, the second aspect, or the third aspect is implemented.
  • a communication system including one or more of the following: the above-mentioned access network device, and the above-mentioned second AMF network element.
  • the communication system may further include the above-mentioned terminal device.
  • FIG. 1 is a schematic diagram of network co-construction and sharing
  • Fig. 2 is the infrastructure of the communication system provided by the embodiment of the present application.
  • FIG. 3A is a schematic diagram of a 5G network architecture based on a service architecture
  • the 5G network architecture shown in FIG. 3B may include a data network (data network, DN) and an operator network;
  • FIG. 4 is a schematic diagram of a hardware structure applicable to a communication device provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a network connection method provided by an embodiment of the present application.
  • FIG. 6 is used to describe the scenario where the second USIM requests to establish a communication connection with the second AMF network element when the first USIM is in the connected state and the second USIM is in the idle state;
  • FIG. 7 is a schematic flowchart of another network connection method provided by the embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another network connection method provided by the embodiment of the present application.
  • FIG. 9A is a schematic flowchart of another network connection method provided by the embodiment of the present application.
  • FIG. 9B is a schematic flowchart of another network connection method provided by the embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a communication system provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a simplified terminal device provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a simplified access network device provided by an embodiment of the present application.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • “At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items.
  • At least one (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • the singular expressions "a”, “an”, “said”, “above”, “the” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates There are instructions to the contrary.
  • the ordinal numerals such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or priority of multiple objects. Importance.
  • references to "one embodiment” or “some embodiments” and the like described in the embodiments of the present application mean that specific features, structures or characteristics described in connection with the embodiments are included in one or more embodiments of the present application.
  • appearances of the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in other embodiments,” etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean “one or more but not all embodiments” unless specifically stated otherwise.
  • the terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless specifically stated otherwise.
  • USB Universal Subscriber Identification Module
  • the USIM may include USIMs in various forms, for example, a pluggable USIM card, an embedded USIM (Embedded-USIM, eUSIM), or an eUICC (Embedded-UICC), which is not limited here.
  • a pluggable USIM card an embedded USIM (Embedded-USIM, eUSIM), or an eUICC (Embedded-UICC), which is not limited here.
  • the USIM can support global system for mobile communications associations (GSMA), remote SIM provisioning (remote SIM provisioning, RSP) communication protocols, etc., and there is no limitation here.
  • GSMA global system for mobile communications associations
  • RSP remote SIM provisioning
  • Radio resource control radio resource control
  • RRC radio resource control
  • the terminal device When the USIM is in the RRC idle state, the terminal device does not establish an RRC connection between the USIM and the access network device, and does not save the corresponding radio resource control context (RRC context).
  • the RRC context is a communication parameter acquired by the terminal device when establishing an RRC connection between the USIM and the access network device.
  • the RRC context may include one or more of the following information: access stratum (Access stratum, AS) security context, terminal device radio capability information, signaling radio bearer (signaling radio bearer, SRB) configuration information, data radio bearer (data radio bearer, DRB) configuration information, etc.
  • the USIM has not established a communication connection with the core network equipment, that is, the core network equipment is in the connection management idle state (Connection Management-Idle, CM-IDLE).
  • the terminal device cannot transmit or receive data, which may include user plane service data and control plane signaling.
  • the terminal device needs to send uplink data to the network, or receives a paging message from the network, or receives a downlink service notification message from the network, it requests to access the network to establish a communication connection to send or receive data.
  • the terminal device When the USIM is in the RRC connection state, the terminal device has established an RRC connection between the USIM and the access network device, and generated and saved the corresponding RRC context.
  • the access network device assigns a cell radio network temporary identifier (C-RNTI) to the accessed USIM.
  • C-RNTI cell radio network temporary identifier
  • the USIM has also established a communication connection with the core network equipment, that is, the core network equipment is in the connection management connection state (Connection Management, CM_CONNECTED).
  • the terminal device can transmit and receive data, which may include user plane service data and control plane signaling.
  • FIG. 1 is a schematic diagram of network co-construction and sharing.
  • the same base station can communicate with core networks of different operators.
  • the core network of operator A provides services for the universal subscriber identity module 1
  • the core network of operator B provides services for the universal subscriber identity module 2.
  • the terminal device in FIG. 1 can establish two communication connections with the same base station.
  • the universal subscriber identity module 1 included in the terminal equipment has a communication connection with the base station
  • the universal subscriber identity module 2 included in the terminal equipment also has a communication connection with the base station. That is, each of the plurality of universal subscriber identity modules establishes a communication connection with the base station.
  • a multi-USIM terminal device with limited transceiver capability when multiple USIMs have service sending and receiving requirements at the same time, only one of the USIMs can perform service sending and receiving, and the terminal device cannot establish and maintain a communication connection for each USIM at the same time, thus affecting users. experience.
  • a multi-USIM terminal device with better transceiver capabilities even if a communication connection can be established and maintained for each USIM at the same time, maintaining two communication connections will consume more power of the terminal device, and will also impact the communication connection of the base station. capacity and cause base station congestion.
  • the present application provides a network connection method to solve the above-mentioned technical problem, and the embodiments of the present application are described in detail below.
  • FIG. 2 is a basic architecture of a communication system provided by an embodiment of the present application.
  • the communication system may include one or more access network devices 10 (only one is shown in FIG. 2 ) and one or more terminal devices 20 communicating with each access network device 10 .
  • FIG. 2 is only a schematic diagram, and does not constitute a limitation on the applicable scenarios of the technical solution provided in this application.
  • the access network device 10 is an entity on the network side for sending a signal, or receiving a signal, or sending a signal and receiving a signal.
  • the access network device 10 may be a device deployed in a radio access network (radio access network, RAN) to provide a wireless communication function for the terminal device 20, for example, it may be a transmission reception point (transmission reception point, TRP), a base station, various The control node of the form.
  • RAN radio access network
  • TRP transmission reception point
  • a base station various The control node of the form.
  • the access network equipment may be various forms of macro base stations, micro base stations (also called small cells), relay stations, access points (access point, AP), radio network controllers (radio network controller, RNC), Node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center), etc., can also be the antenna panel of the base station.
  • the control node can connect multiple base stations, and configure resources for multiple terminals under the coverage of multiple base stations.
  • the names of the equipment with base station functions may be different.
  • it may be a gNB in 5G, or a network-side device in a post-5G network, or an access network device in a future evolved PLMN network.
  • This application does not limit the specific name of the access network device.
  • the access network device 10 may also include a central unit (central unit, CU) and a distributed unit (distributed unit, DU) integrated on the gNB.
  • the terminal device 20 is an entity on the user side for receiving signals, or sending signals, or receiving signals and sending signals.
  • the terminal device 20 is used to provide users with one or more of voice services and data connectivity services.
  • the terminal device 20 may be a device that includes a wireless transceiver function and can cooperate with access network devices to provide communication services for users.
  • the terminal equipment 20 may refer to a user equipment (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 terminal, a wireless communication device, a user agent or user device.
  • the terminal device 20 may also be a drone, an Internet of Things (Internet of Things, IoT) device, a station (station, ST) in a WLAN, a cellular phone (cellular phone), a smart phone (smart phone), a cordless phone, a wireless data Cards, tablet computers, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistant (PDA) devices, laptop computers ), machine type communication (machine type communication, MTC) terminals, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices (also known as wearable smart devices) , virtual reality (virtual reality, VR) terminal, augmented reality (augmented reality, AR) terminal, wireless terminal in industrial control (industrial control), wireless terminal in self driving (self driving), remote medical (remote medical) Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • IoT Internet of Things
  • IoT Internet of Things
  • the terminal device 20 may also be a device to device (device to device, D2D) device, for example, an electric meter, a water meter, and the like.
  • the terminal device 20 may also be a terminal in a 5G system, or a terminal in a next-generation communication system, which is not limited in this embodiment of the present application.
  • the terminal device 20 may include one or more USIMs.
  • the communication system may further include a first mobility management network element 30 and a second mobility management network element 40 .
  • the first mobility management network element 30 is a mobility management network element serving the first USIM
  • the second mobility management network element 40 is a mobility management network element serving the second USIM.
  • the first mobility management network element 30 and the second mobility management network element 40 can communicate with the access network device 10 and the terminal device 20 .
  • the first mobility management network element 30 or the second AMF mobility management 40 has one or more of the following functions: registration, security authentication and key agreement for terminal equipment in the mobile network, non-access stratum ( Non-Access Stratum, NAS) connection maintenance, mobility management, routing signaling between terminal equipment and other network elements. For example, routing a session management (session management, SM) message between a terminal device and a session management function (SMF).
  • SM session management
  • SMSF session management function
  • Namf is a service-based interface provided by the first mobility management network element 30 and the second mobility management network element 40.
  • the first mobility management network element 30 and the second mobility management network element 40 can pass Namf communicates with other network functions.
  • the first mobility management network element 30 may be called a first AMF network element
  • the second mobility management network element 40 may be called a second AMF network element.
  • the first mobility management network element 30 and the second mobility management network element 40 may be the same device, or different devices, which are not limited here.
  • the first mobility management network element and the second mobility management network element are the same device, then the first network and the second network are the same.
  • the first USIM belongs to the first network, and the second USIM belongs to the second network.
  • the communication system may further include a first data management network element 50 and a second data management network element 60
  • the first mobility management network element 30 may communicate with the first data management network element 50
  • the second mobility management network element 50 may communicate with the first data management network element 50.
  • the network element 40 can communicate with the second data management network element 60 .
  • the first data management network element 50 or the second data management network element 60 may include one or more of the following functions: for processing user identification, access authentication or registration, and the like.
  • N data management is a service-based interface provided by the first data management network element 50 and the second data management network element 60, and the first data management network element 50 and the second data management network element 60 can pass the N Data management communicates with other network functions.
  • the present application does not limit the names of the first data management network element 50 and the second data management network element 60 .
  • the first data management network element 50 may be called a first UDM network element
  • the second data management network element 60 may be called a second UDM network element.
  • first data management network element 50 and the second data management network element 60 may be the same device, or different devices, which are not limited here.
  • the communication system may further include a first authentication server network element 70 and a second authentication server network element 80 .
  • the first mobility management network element 30 may communicate with the first authentication server network element 70
  • the second mobility management network element 40 may communicate with the second authentication server network element 80 .
  • the first authentication server network element 70 and the second authentication server network element 80 are both control plane network elements in the 3GPP network, and the first authentication server network element 70 and the second authentication server network element 80 mainly It is used for the first-level authentication (that is, the 3GPP network authenticates its subscribers).
  • first authentication server network element 70 and the second authentication server network element 80 may be the same device, or different devices, which are not limited here.
  • FIG. 3A is a schematic diagram of a 5G network architecture based on a service-based architecture.
  • the 5G network architecture shown in FIG. 3B may include a data network (data network, DN) and an operator network. The functions of some of the network elements are briefly introduced and described below.
  • the operator network may include one or more of the following network elements: authentication server function (Authentication Server Function, AUSF) network element, network exposure function (network exposure function, NEF) network element, policy control function (policy control function, PCF) network element, unified data management (unified data management, UDM) network element, unified database (Unified Data Repository, UDR), network storage function (Network Repository Function, NRF) network element, application function (application function, AF) ) network elements, access and mobility management function (access and mobility management function, AMF) network elements, session management function (session management function, SMF) network elements, radio access network (radio access network, RAN) equipment and users Plane function (user plane function, UPF) network element, network slice selection function (Network Slice Selection Function, NSSF) network element (not shown in the figure), etc.
  • network elements or devices other than radio access network devices may be referred to as core network elements or core network devices.
  • the wireless access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system , a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (Wireless Fidelity, WiFi) system, etc.; it can also be a module or unit that completes some functions of the base station, for example, It can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the radio access network equipment may be a macro base station, a micro base station or an indoor station, or a relay node or a donor node. The embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.
  • the terminal communicating with the RAN may also be called terminal equipment, user equipment (user equipment, UE), mobile station, mobile terminal, and so on.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.
  • Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, 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 base station and the terminal.
  • the AMF network element performs functions such as mobility management and access authentication/authorization. In addition, it is also responsible for transferring user policies between the terminal and the PCF.
  • the SMF network element performs functions such as session management, execution of control policies issued by the PCF, selection of UPF, and allocation of Internet Protocol (IP) addresses for terminals.
  • functions such as session management, execution of control policies issued by the PCF, selection of UPF, and allocation of Internet Protocol (IP) addresses for terminals.
  • IP Internet Protocol
  • the UPF network element as the interface UPF with the data network, completes functions such as user plane data forwarding, session/flow-based charging statistics, and bandwidth limitation.
  • the UDM network element performs functions such as managing subscription data and user access authorization.
  • UDR implements the access function of contract data, policy data, application data and other types of data.
  • NEF network elements are used to support the opening of capabilities and events.
  • the AF network element transmits the requirements from the application side to the network side, such as QoS requirements or user status event subscription.
  • the AF may be a third-party functional entity, or an application service deployed by an operator, such as an IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) voice call service.
  • IP Multimedia Subsystem IP Multimedia Subsystem, IMS
  • the PCF network element is responsible for policy control functions such as charging for sessions and service flow levels, QoS bandwidth guarantee, mobility management, and terminal policy decision-making.
  • the NRF network element can be used to provide a network element discovery function, and provide network element information corresponding to the network element type based on the request of other network elements.
  • NRF also provides network element management services, such as network element registration, update, de-registration, network element status subscription and push, etc.
  • the AUSF network element is responsible for authenticating users to determine whether users or devices are allowed to access the network.
  • the NSSF network element is used to select a network slice and count users in the network slice.
  • DN is a network outside the operator's network.
  • the operator's network can access multiple DNs, and various services can be deployed on the DN, which can provide data and/or voice services for terminals.
  • DN is a private network of a smart factory.
  • the sensors installed in the workshop of the smart factory can be terminals, and the control server of the sensors is deployed in the DN, and the control server can provide services for the sensors.
  • the sensor can communicate with the control server, obtain instructions from the control server, and transmit the collected sensor data to the control server according to the instructions.
  • DN is a company's internal office network.
  • the mobile phone or computer of the company's employees can be a terminal, and the employee's mobile phone or computer can access information and data resources on the company's internal office network.
  • Nausf, Nnef, Npcf, Nudm, Naf, Namf, and Nsmf are the service interfaces provided by the above-mentioned AUSF, NEF, PCF, UDM, AF, AMF, and SMF, respectively, and are used to call corresponding service operations.
  • N1, N2, N3, N4, and N6 are interface serial numbers. The meanings of these interface serial numbers may refer to the meanings defined in the third generation partnership project (3rd generation partnership project, 3GPP) standard agreement, and no limitation is made here.
  • FIG. 3B is a schematic diagram of a 5G network architecture based on a point-to-point interface.
  • the main difference between Fig. 3B and Fig. 3A is: the interface between each control plane network element in Fig. 3A is a service interface, and the interface between each control plane network element in Fig. 3B is a point-to-point interface.
  • N1 the interface between the AMF and the terminal, which can be used to transmit QoS control rules and the like to the terminal.
  • N2 the interface between the AMF and the RAN, which can be used to transfer radio bearer control information from the core network side to the RAN.
  • N3 the interface between the RAN and the UPF, mainly used to transfer the uplink and downlink user plane data between the RAN and the UPF.
  • N4 The interface between SMF and UPF, which can be used to transfer information between the control plane and the user plane, including controlling the distribution of forwarding rules, QoS control rules, traffic statistics rules, etc. Information reporting.
  • N5 the interface between the AF and the PCF, which can be used for sending application service requests and reporting network events.
  • N6 the interface between UPF and DN, used to transfer the uplink and downlink user data flow between UPF and DN.
  • N7 the interface between PCF and SMF, which can be used to deliver protocol data unit (protocol data unit, PDU) session granularity and service data flow granularity control policy.
  • protocol data unit protocol data unit
  • PDU protocol data unit
  • N8 The interface between AMF and UDM, which can be used for AMF to obtain subscription data and authentication data related to access and mobility management from UDM, and for AMF to register terminal current mobility management related information with UDM.
  • N9 a user plane interface between UPF and UPF, used to transmit uplink and downlink user data flows between UPFs.
  • N10 the interface between SMF and UDM, which can be used for SMF to obtain session management-related subscription data from UDM, and for SMF to register terminal current session-related information with UDM.
  • N11 the interface between SMF and AMF, which can be used to transfer PDU session tunnel information between RAN and UPF, transfer control messages sent to terminals, transfer radio resource control information sent to RAN, etc.
  • N12 the interface between AMF and AUSF, which can be used for AMF to initiate an authentication process to AUSF, which can carry SUCI as a subscription identifier;
  • N13 the interface between UDM and AUSF, which can be used for AUSF to obtain user authentication vector from UDM to execute the authentication process.
  • N15 the interface between the PCF and the AMF, which can be used to issue terminal policies and access control-related policies.
  • N35 the interface between UDM and UDR, which can be used for UDM to obtain user subscription data information from UDR.
  • N36 the interface between the PCF and the UDR, which can be used for the PCF to obtain policy-related subscription data and application data-related information from the UDR.
  • the above-mentioned network element or function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • a platform for example, a cloud platform.
  • the foregoing network element or function may be implemented by one device, or jointly implemented by multiple devices, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.
  • the session management network element, user plane network element, and policy control network element in this application can be the SMF, UPF, and PCF in Figure 3A or Figure 3B, respectively, or they can be the above-mentioned SMF, UPF, and PCF in future communications such as 6G networks.
  • a network element with a function which is not limited in this application.
  • SMF, UPF, and PCF are respectively used as an example of a session management network element, a user plane network element, and a policy control network element for description.
  • the above-mentioned network element or function can be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • the above-mentioned network elements or functions can be divided into one or more services, and further, there may also be services that exist independently of network functions.
  • an instance of the above-mentioned function, or an instance of a service included in the above-mentioned function, or a service instance existing independently of the network function may be referred to as a service instance.
  • the technical solutions provided by the embodiments of the present application are applicable to various system architectures.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • each network element in FIG. 2 can be realized by one device, can also be realized by multiple devices, and can also be a function in one device module, which is not specifically limited in this embodiment of the present application. It can be understood that the above function can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • FIG. 4 is a schematic diagram of a hardware structure applicable to a communication device provided by an embodiment of the present application.
  • the communication device 400 includes at least one processor 401 , a communication line 402 and at least one communication interface 404 .
  • the processor 401 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more for controlling the implementation of the application program program integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication line 402 may include a pathway for communicating information between the above-described components.
  • the communication interface 404 is any device such as a transceiver (such as an antenna) for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (wireless local area networks, WLAN) and the like.
  • a transceiver such as an antenna
  • WLAN wireless local area networks
  • the communication device 400 further includes a memory 403, the memory 403 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) , RAM) or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory , CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disc storage media or other magnetic storage devices, or capable of carrying or storing Desired program code in the form of a data structure and any other medium capable of being accessed by a computer, but not limited thereto.
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile disc
  • the memory may exist independently and be connected to the processor through the communication line 402 . Memory can also be integrated with the processor.
  • the memory provided by the embodiment of the present application may generally be non-volatile.
  • the memory 403 is used to store computer-executed instructions for implementing the solution of the present application, and the execution is controlled by the processor 401 .
  • the processor 401 is configured to execute computer-executed instructions stored in the memory 403, so as to implement the methods provided in the following embodiments of the present application.
  • the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which is not specifically limited in the embodiments of the present application.
  • the processor 401 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4 .
  • the communication device 400 may include multiple processors, for example, the processor 401 and the processor 407 in FIG. 4 .
  • Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the communication apparatus 400 may further include an output device 405 and an input device 406 .
  • Output device 405 is in communication with processor 401 and may display information in a variety of ways.
  • the output device 405 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a cathode ray tube (cathode ray tube, CRT) display device, or a projector (projector) Wait.
  • the input device 406 communicates with the processor 401 and can receive user input in various ways.
  • the input device 406 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.
  • the aforementioned communication device 400 may be a general-purpose device or a special-purpose device.
  • the communication device 400 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure in FIG. 4 equipment.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 400 .
  • FIG. 5 is a schematic flowchart of a network connection method provided by an embodiment of the present application.
  • the access network device in FIG. 5 is the access network device 10 in FIG. 2
  • the terminal device in FIG. 5 is the terminal device 20 in FIG. 2.
  • the terminal device includes two USIMs as an example. , but not limited to two, may also include three or more USIMs.
  • the method includes but is not limited to the following steps:
  • the access network device sends a network identifier to the terminal device, where the network identifier is used to identify one or more networks supported or connected by the access network device.
  • the terminal device includes a first USIM and a second USIM.
  • the terminal device receives the network identifier from the access network device.
  • the network identifier may be a public land mobile (communication) network (public land mobile network, PLMN) identifier. It can be understood that, in this application, the network identifier may be one or more network identifiers, and each network identifier is used to identify a network supported by the access network device.
  • PLMN public land mobile network
  • a network can be understood as an operator network, that is, a network identifier can be used to identify an operator network supported by an access network device.
  • the PLMN ID 1 is used to identify the China Unicom network supported by the access network device
  • the PLMN ID 2 is used to identify the China Mobile network supported by the access network device
  • the PLMN ID 3 is used to identify the network supported by the access network device.
  • China Telecom's network is used to identify the network supported by the access network device.
  • step 501 may include: the access network device sends a network list (PLMN list) to the terminal device, and the network list may include one or more network identifiers.
  • PLMN list a network list
  • the network list may include one or more network identifiers.
  • the access network device sends a network list (PLMN list) to the terminal device through a system information broadcast (SIB) message.
  • PLMN list network list
  • SIB system information broadcast
  • the solution further includes: the terminal device sends first indication information when the first USIM and the second USIM belong to one or more networks supported by the access network device.
  • the terminal device sending the first indication information includes: the terminal device sending the first indication information to the access network device; or, the terminal device sending the first indication information to the second AMF network element.
  • This solution can be implemented in any one of the following two ways: way 1, including step 502; way 2, including steps 503 and 504. It can be understood that the first indication information in the manner 1 and the manner 2 may be sent through the first message.
  • the first message is used to establish the second control plane connection.
  • the first message is also used to establish the first control plane connection.
  • the first message may be, for example, the first RRC message or other messages, which is not limited here.
  • the first RRC message may be, for example, an uplink information transfer (UL information transfer) or an RRC establishment request message, which is not limited here.
  • UL information transfer uplink information transfer
  • RRC establishment request message which is not limited here.
  • the terminal device sends first indication information to the access network device, where the first indication information is used to indicate the first USIM and the second USIM
  • the first control plane connection of the access network device is the same as the second control plane connection between the second USIM and the access network device.
  • the access network device receives the first indication information from the terminal device.
  • the first USIM and the second USIM belong to one or more networks supported by the access network device
  • the network identifier in step 501 includes the identifier of the network corresponding to the first USIM and the identifier of the network corresponding to the second USIM .
  • the network corresponding to the first USIM is network 1
  • the identifier of network 1 is PLMN identifier 1
  • the network corresponding to the second USIM is network 2
  • the identifier of network 2 is PLMN identifier 2
  • it is used to identify the access network device
  • the supported network identifiers of one or more networks include PLMN identifier 1 and PLMN identifier 2.
  • the method further includes: the terminal device determines that the first USIM and the second USIM belong to one or more networks supported by the access network device.
  • the first indication information in Way 1 may be the identity of the first USIM; or, the first indication information in Way 1 may be the identity of the first USIM and the identity of the second USIM; or , the first indication information is neither the identity of the first USIM nor the identity of the first USIM and the identity of the second USIM.
  • the first indication information is not the identity of the first USIM and is not the identity of the first USIM and the identity of the second USIM. The identity of the second USIM is irrelevant.
  • the identifier of the first USIM includes one or more of the following: a first system architecture evolution temporary mobile station identifier (system architecture evolution, SAE, temporary mobile station identifier, S-TMSI), a first globally unique temporary identifier (globally Unique temporary identity (GUTI), first user permanent identifier (subscription permanent identifier, SUPI), or first access network temporary identifier (Radio Network Temporary Identifier, RNTI), etc., are not limited here.
  • the identifier of the second USIM may include one or more of the following: a second S-TMSI, a second GUTI, a second SUPI, or a second RNTI, etc., which is not limited here.
  • the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device, and may include any of the following three situations:
  • the RRC layer between the first USIM and the access network device is the same as the RRC layer between the second USIM and the access network device, and the packet data convergence protocol (packet data) between the first USIM and the access network device
  • the convergence protocol (PDCP) layer is the same as the PDCP layer between the second USIM and the access network device
  • the radio link control (radio link control, RLC) layer between the first USIM and the access network device is the same as the second USIM and the access network device.
  • the RLC layer between the access network devices is the same, the media access control (media access control, MAC) layer between the first USIM and the access network device is the same as the MAC layer between the second USIM and the access network device, And the physical layer (PHY, Physical) between the first USIM and the access network device is the same as the PHY layer between the second USIM and the access network device;
  • media access control media access control
  • MAC media access control
  • PHY Physical
  • the RLC layer between the first USIM and the access network device is the same as the RLC layer between the second USIM and the access network device
  • the MAC layer between the first USIM and the access network device is the same as that between the second USIM and the access network device
  • the MAC layers between the access network devices are the same, and the PHY between the first USIM and the access network device is the same as the PHY between the second USIM and the access network device;
  • the MAC layer between the first USIM and the access network device is the same as the MAC layer between the second USIM and the access network device, and the PHY between the first USIM and the access network device is the same as that between the second USIM and the access network device The PHY between the access network devices is the same.
  • the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device, which can be understood as: the first USIM and the second USIM share the same control plane connection, or, the RRC connection between the first USIM and the access network device is the same as the RRC connection between the second USIM and the access network device, or, combine the first context information of the first USIM with the first context information of the second USIM A context information association.
  • the first context information of the first USIM is the context information of the first USIM in the access network device
  • the first context information of the second USIM is the context information of the second USIM in the access network device .
  • the first context information of the first USIM may include one or more of the following: an identifier of the first USIM, a next generation application protocol (next generation application protocol, NGAP) identifier of the first USIM, a first access layer (Access Stratum, AS) security context, first wireless capability information of the terminal device, first configuration information of a signaling radio bearer (signaling radio bearer, SRB), first configuration information of a data radio bearer (data radio bearer, DRB).
  • the NGAP identifier of the first USIM is an identifier assigned by the access network device to the first USIM for establishing an NGAP signaling connection with the first AMF network element.
  • the first context information of the second USIM may include one or more of the following: the identity of the second USIM, the NGAP identity of the second USIM, the second AS security context, the second wireless capability information of the terminal device, the first Second configuration information, second configuration information of the DRB.
  • the NGAP identifier of the second USIM is an identifier assigned by the access network equipment to the second USIM for establishing an NGAP signaling connection with the second AMF network element.
  • the first AS security context is the same as the second AS security context.
  • the first wireless capability information of the terminal device is the same as the second wireless capability information of the terminal device.
  • the first configuration information of the SRB is the same as the second configuration information of the SRB.
  • the first configuration information of the DRB is the same as the second configuration information of the DRB.
  • the terminal device sends the first indication information to the second AMF network element, and the first indication information is used to indicate the first USIM
  • the first control plane connection with the access network device is the same as the second control plane connection between the second USIM and the access network device.
  • the second AMF network element receives the first indication information from the terminal device.
  • the terminal device may send the first indication information to the second AMF network element through the access network device, and correspondingly, the second AMF network element may receive the first indication from the terminal device through the access network device information.
  • step 503 further includes: the terminal device sends the second routing identifier to the access network device.
  • the access network device sends the first indication information to the second AMF network element according to the second route identifier.
  • the second routing identifier is used to address the second AMF network element, and the second routing identifier may include one or more of the following: the identifier of the second network, the identifier of the second USIM, or the identifier of the second AMF network element.
  • the identifier of the second USIM may be used to indicate the second AMF network element or the second network, and the second USIM belongs to the second network.
  • the identifier of the second network may be the identifier of the second PLMN.
  • the second PLMN identifier may be used to identify the operator network supported by the access network device.
  • the upper bits of the second GUTI may include the identifier of the second network or the identifier of the globally unique second AMF network element , all bits of the second GUTI may be the globally unique second USIM identifier; if the second routing identifier includes the identifier of the second network and the identifier of the second USIM, and the identifier of the second USIM is the second S-TMSI, then, The upper bits of the second S-TMSI may be the unique identifier of the second AMF network element in the second network, and all the bits of the second S-TMSI may be the unique identifier of the second USIM in the second network.
  • the second route identifier may be sent to the access network device through the first message.
  • the first indication information and the second routing identifier may be carried in the same RRC message and sent to the access network device.
  • the second AMF network element sends second indication information to the access network device, where the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the access network device receives the second indication information from the second AMF network element.
  • the second AMF network element determines the second indication information according to the first indication information and the subscription information of the second USIM.
  • the subscription information of the second USIM is used to indicate one or more of the following: allowing the first USIM and the second USIM to share the same control plane connection, or allowing the second USIM to share with USIMs other than the second USIM The same control plane connection, or, allowing the second USIM to share the same control plane connection with USIMs belonging to the second network except the second USIM, or, allowing the identity of the USIM to share the same control plane connection with the second USIM.
  • the identifier of the USIM allowed to share the same control plane connection with the second USIM may include, for example, the identifier of the first USIM or other identifiers, which is not limited here.
  • the subscription information of the second USIM is obtained according to the identifier of the second USIM.
  • the subscription information of the second USIM is acquired from the second UDM network element or the second AMF network element according to the identifier of the second USIM.
  • the second indication information may include the identifier of the first USIM and/or the NGAP identifier of the first USIM.
  • the second indication information may include an identifier of the first USIM and an identifier of the second USIM.
  • the second indication information may include second credential information, or the second indication information may include first credential information and second credential information.
  • the first credential information includes a signature generated according to a private key corresponding to the certificate of the first network.
  • the first credential information is the signature obtained by calculating the identity of the first USIM by the first AMF network element or the first UDM network element or the first AUSF network element according to the private key corresponding to the certificate of the first network. If the first credential information is the signature obtained by calculating the identity of the first USIM according to the private key corresponding to the certificate of the first UDM network element or the first AUSF network element, the first UDM network element or the first AUSF network element
  • the network element may send the first credential information to the first AMF network element, and the first AMF network element may send the first credential information to the terminal device or the access network device.
  • the first credential information may be token1.
  • the second credential information includes a signature generated according to the private key corresponding to the certificate of the second network, and the second credential information is that the second AMF network element or the second UDM network element or the second AUSF network element corresponds to
  • the private key is the signature obtained by calculating the identity of the second USIM. If the second credential information is the signature obtained by calculating the identity of the second USIM according to the private key corresponding to the certificate of the second network by the second UDM network element or the second AUSF network element, then the second UDM network element or the second AUSF network element
  • the network element may send the second credential information to the second AMF network element, and the second AMF network element may send the second credential information to the terminal device or the access network device.
  • the second credential information may be token2.
  • the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same, including one or more of the following situations: the second indication information is used for the second AMF network element to allow the second USIM to communicate with the second USIM USIMs other than the second USIM share the same control plane connection; or, the second indication information is used for the second AMF network element to allow the first USIM and the second USIM to share the same control plane connection; or, the second indication information is used for the first USIM
  • the two AMF network elements are allowed to associate the first context information of the first USIM with the first context information of the second USIM, which is not limited here.
  • the first context information of the first USIM and the first context information of the second USIM reference may be made to the relevant description in the first method, and details are not repeated here.
  • step 504 may include: the second AMF network element determines to allow the first USIM and the second USIM to share the same control plane connection according to the first indication information and the subscription information of the second USIM; The network device sends the second indication information.
  • the terminal device can obtain the network identifier used to identify one or more networks supported by the access network device from the access network device, and the first USIM and the second USIM included in the terminal device belong to the networks supported by the access network device.
  • the terminal device sends indication information indicating that the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device, In this way, a plurality of universal subscriber identification modules can establish a same control plane connection with access network equipment, thereby reducing communication connection capacity, reducing network congestion, improving communication capabilities and reducing energy consumption of terminal equipment.
  • the foregoing solution further includes step 505 .
  • the access network device associates the first context information of the first USIM with the first context information of the second USIM.
  • step 505 is executed after step 502 .
  • step 505 may include: the access network device may associate the first context information of the first USIM with the first context information of the second USIM according to the first indication information.
  • step 505 is executed after step 504 .
  • step 505 may include: the access network device may combine the first context information of the first USIM with the first context information of the second USIM according to the second indication information information association.
  • the access network device associates the first context information of the first USIM with the first context information of the second USIM, that is, the connection between the first USIM and the first control plane of the access network device is connected with the second USIM and the second USIM.
  • the second control plane connections of the access network equipment are the same, so that multiple universal subscriber identity modules can establish the same control plane connection with the access network equipment.
  • the access network device may further associate the first context information of the first USIM with the first context information of the second USIM in combination with the first credential information and/or the second credential information, wherein, Regarding the first credential information and the second credential information, reference may be made to relevant descriptions in step 504, and details are not repeated here.
  • the access network device may combine the first context information of the first USIM with the first context of the second USIM according to the first indication information and one or more of the following: first credential information or second credential information information association.
  • the access network device receives the first credential information and/or the second credential information from the terminal device.
  • the access network device may combine the first context information of the first USIM with the first context of the second USIM according to the second indication information and one or more of the following: first credential information or second credential information information association. For example, if the second indication information does not include the first credential information, the access network device receives the first credential information from the first AMF network element or the second AMF network element. If the second indication information does not include the first credential information and the second credential information. If the second indication information does not include the second credential information, the access network device receives the second credential information from the second AMF network element.
  • the access network device can combine the first credential information and/or the second credential information to realize the association of the first context information of the first USIM and the first context information of the second USIM, which improves the first context information of associating different USIMs. Security when a contextual information.
  • FIG. 6 is used to describe the scenario where the second USIM requests to establish a communication connection with the second AMF network element when the first USIM is in the connected state and the second USIM is in the idle state.
  • the access network device in FIG. 6 is the access network device 10 in FIG. 2
  • the terminal device in FIG. 6 is the terminal device 20 in FIG. 2
  • the second AMF network element in FIG. 6 is the The second AMF network element 40 .
  • the method includes but is not limited to the following steps:
  • the access network device sends a network identifier to the terminal device, where the network identifier is used to identify one or more networks supported by the access network device.
  • the terminal device includes a first USIM and a second USIM.
  • step 601 reference may be made to the description of step 501 in FIG. 5 , and details are not repeated here.
  • the terminal device sends the first indication information, the second routing identifier and A NAS request message, where the NAS request message includes the identifier of the second USIM, and the NAS request message is used to request registration of the second USIM.
  • the access network device receives the first indication information, the second routing identifier, and the NAS request message from the terminal device through the first control plane connection, where the NAS request message includes the identifier of the second USIM.
  • the NAS request message may be a registration request message or a service request message, which is not limited here.
  • the first indication information, the second routing identifier and the NAS request message in step 602 may be carried in the same RRC message and sent to the access network device.
  • the access network device sends the NAS request message to the second AMF network element according to the second route identifier.
  • the second AMF network element receives the NAS request message from the access network device.
  • the NAS request message in step 603 may carry the N2 message in the second USIM and send it to the second AMF network element.
  • the N2 message of the second USIM may be, for example, an initial UE message or other messages, which is not limited here.
  • the second AMF network element acquires the subscription information of the second USIM according to the identifier of the second USIM.
  • step 604 can be understood as: the second AMF network element acquires the subscription information of the second USIM from the second UDM network element according to the identifier of the second USIM.
  • the second AMF network element sends a request message to the access network device according to the subscription information of the second USIM, and the request message is used to request the establishment of the N2 signaling connection of the second USIM between the second AMF network element and the access network device .
  • the access network device receives the request message from the second AMF network element.
  • the request message in step 605 may be, for example, an initial context establishment request message or other messages, which is not limited here.
  • the request message in step 605 may also include the NAS response message in step 608, and in this case, step 608 is not executed.
  • the access network device sends a response message to the request message to the second AMF network element, and the response message to the request message is used to indicate that the N2 signaling connection of the second USIM between the second AMF network element and the access network device is successfully established .
  • the second AMF network element receives the response message of the request message from the access network device.
  • the response message to the request message in step 608 may be, for example, a response message to the initial context establishment request message or other messages, which is not limited here.
  • the access network device associates the first context information of the first USIM with the first context information of the second USIM according to the first indication information.
  • step 607 reference may be made to the relevant description of step 505 in the first manner in FIG. 5 , and details are not repeated here.
  • step 607 may be performed before any step of steps 603-606, may be performed after any step of steps 603-606, or may be performed simultaneously with any step of steps 603-606.
  • the access network device may also map the data plane of the first USIM, the protocol data unit (protocol data unit, PDU) session, and the quality of service (quality of service, QoS) flow to the first data radio
  • the access network device can also map the data plane, PDU session, and QoS flow of the second USIM to the first DRB; or, the access network device can map the data plane of the first USIM , PDU sessions, and QoS flows are mapped to the first DRB, and the access network device maps the data plane, PDU sessions, and QoS flows of the second USIM to the second DRB, which is not limited here.
  • both the first DRB and the second DRB are DRBs established between the terminal device and the access network device through the first control plane connection, and the first DRB and the second DRB are different.
  • the second AMF network element sends a NAS response message to the terminal device, where the NAS response message is used to indicate that the registration of the second USIM is completed.
  • the terminal device receives the NAS response message from the second AMF network element.
  • the NAS response message may be a registration acceptance message or a service acceptance message, which is not limited here. It can be understood that if the NAS request message is a registration request message, the NAS response message is a registration acceptance message; if the NAS request message is a service request message, the NAS response message is a service acceptance message.
  • step 608 may include: the second AMF network element sends a NAS response message to the terminal device through the access network device.
  • the terminal device can obtain the network identifier used to identify one or more networks supported by the access network device from the access network device, and the first USIM and the second USIM included in the terminal device belong to the networks supported by the access network device.
  • the terminal device sends indication information indicating that the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device, It realizes the establishment of the same control plane connection between multiple universal subscriber identity modules and access network equipment without core network authorization, thereby reducing the capacity of communication connections, reducing network congestion, improving communication capabilities, and reducing the cost of terminal equipment. energy consumption.
  • the terminal device can also send the second routing identifier and the NAS request message to the access network device, so that the access network device can send the NAS request message to the second AMF network element according to the second routing identifier, thereby realizing the registration of the second USIM .
  • fourth indication information may be carried in the interaction message, the fourth indication The information is used to indicate the AMF network element or USIM that receives the message.
  • fourth indication information may be carried, and the fourth indication information may be, for example, the identifier of the first network, the identifier of the first USIM , the identity of the first AMF network element, etc.; when the second USIM and the second AMF network element involve uplink and/or downlink data transmission, the fourth indication information may be, for example, the identity of the second network, the identity of the second USIM, the second 2.
  • the data may be NAS messages.
  • the fourth indication information may be an indication bit, for example, the indication bit is 1 bit, "0" indicates that the uplink and/or downlink data belong to the first USIM, and "1" indicates that the uplink and/or downlink data belong to the first USIM. Two USIMs.
  • the carrying indication bit is set to "0", then the RAN sends the data to the first AMF, and for the data sent by the second USIM to the second AMF, the carried indication If the bit is set to "1", the RAN sends the data to the second AMF; similarly, optionally, for the data sent by the first AMF to the first USIM, the carrying indicator bit is set to "0", then the RAN sends the data For the data sent to the first USIM by the second AMF to the second USIM, the carrying indication bit is set to "1", and the RAN sends the data to the second USIM.
  • the data may be NAS messages.
  • Fig. 7 is a solution in another scenario provided by the embodiment of the present application: the first USIM is in the connected state and the second USIM is in the idle state, and the second USIM requests to establish communication with the second AMF network element The connection needs to be authorized by the core network.
  • the access network device in FIG. 7 is the access network device 10 in FIG. 2
  • the terminal device in FIG. 7 is the terminal device 20 in FIG. 2
  • the second AMF network element in FIG. 7 is the The second AMF network element 40 .
  • the method includes but is not limited to the following steps:
  • the access network device sends a network identifier to the terminal device, where the network identifier is used to identify one or more networks supported by the access network device.
  • the terminal device includes a first USIM and a second USIM.
  • step 701 reference may be made to the description of step 501 in FIG. 5 , and details are not repeated here.
  • the solution further includes: the terminal device sends first indication information to the second AMF network element when the first USIM and the second USIM belong to one or more networks supported by the access network device.
  • the terminal device sends the first indication information to the second AMF network element through the access network device.
  • the specific implementation includes: when the first USIM and the second USIM belong to one or more networks supported by the access network device, the terminal device sends the second routing identifier and the first NAS request message, the first NAS request message is used to request registration of the second USIM.
  • the first NAS request message may be a registration acceptance message or a service acceptance message, which is not limited here.
  • the terminal device may also send the first indication information to the access network device through the first control plane connection, and the first indication information may or may not be included in the first NAS request message, which is not limited here.
  • the first indication information reference may be made to the first indication information involved in step 502 and step 503 in FIG. 5 , which will not be repeated here.
  • the terminal device may also send the second USIM identifier to the access network device through the first control plane connection, and the second USIM identifier may be included in the first NAS in the request message.
  • Case 1 the first indication information is the identity of the first USIM
  • Case 2 The first indication information is not the identity of the first USIM, nor the identity of the first USIM and the identity of the second USIM.
  • the terminal device may also send the identifier of the first USIM to the access network device through the first control plane connection.
  • the identifier of the first USIM may or may not be included in the first NAS request message, which is not limited here.
  • the terminal device sends the first message to the access network device through the first control plane connection.
  • step 702 can be implemented in any of the following implementation modes: implementation mode A, including step 702A and step 703A, the first indication information in implementation mode A is not the identity of the first USIM and is not the identity of the first USIM and The identity of the second USIM; embodiment B, including step 702B and step 703B, the first indication information in embodiment B is the identity of the first USIM; embodiment C, including step 702C and step 703C, the first indication information in embodiment C The indication information is the identity of the first USIM and the identity of the second USIM.
  • the terminal device sends the identifier of the first USIM and the second routing identifier to the access network device through the first control plane connection and a first NAS request message
  • the first NAS request message includes first indication information
  • the first NAS request message further includes an identifier of the second USIM
  • the first NAS request message is used to request registration of the second USIM.
  • the access network device receives the identifier of the first USIM, the second routing identifier, and the first NAS request message from the terminal device through the first control plane connection.
  • the identifier of the first USIM, the identifier of the second route and the first NAS request message in step 702A may be carried in the same RRC message and sent to the access network device, which is not limited here.
  • the access network device sends the first indication information, the first NAS request message, and the first USIM identifier to the second AMF network element according to the second route identifier.
  • the second AMF network element receives the first indication information, the first NAS request message, and the identifier of the first USIM from the access network device.
  • the first indication information, the first NAS request message and the identifier of the first USIM in step 703A may be carried in the N2 message of the second USIM and sent to the second AMF network element.
  • the N2 message of the second USIM reference may be made to the N2 message of the second USIM involved in step 603 in FIG. 6 , which will not be repeated here.
  • the access network device may also send the NGAP identifier of the first USIM to the second AMF network element according to the second routing identifier.
  • the NGAP identifier of the first USIM reference may be made to the NGAP identifier of the first USIM involved in step 502 in FIG. 5 , which will not be repeated here.
  • the terminal device sends the second routing identifier and the first NAS request message to the access network device through the first control plane connection
  • the first NAS request message includes first indication information (the first indication information being the identifier of the first USIM)
  • the first NAS request message further includes the identifier of the second USIM
  • the first NAS request message is used to request registration of the second USIM.
  • the access network device receives the second route identifier and the first NAS request message from the terminal device through the first control plane connection.
  • the second routing identifier and the first NAS request message in step 702B may be carried in the same RRC message and sent to the access network device, which is not limited here. 703B.
  • the access network device sends the first NAS request message to the second AMF network element according to the second route identifier.
  • the second AMF network element receives the first NAS request message from the access network device.
  • the first NAS request message in step 703B may carry the N2 message in the second USIM and send it to the second AMF network element.
  • the N2 message of the second USIM reference may be made to the N2 message of the second USIM involved in step 603 in FIG. 6 , which will not be repeated here.
  • the access network device may also send the NGAP identifier of the first USIM to the second AMF network element according to the second routing identifier.
  • the NGAP identifier of the first USIM reference may be made to the NGAP identifier of the first USIM involved in step 502 in FIG. 5 , which will not be repeated here.
  • the terminal device sends the second routing identifier and the first NAS request message to the access network device through the first control plane connection
  • the first NAS request message includes first indication information (the first indication information is an identifier of the first USIM and an identifier of the second USIM), and the first NAS request message is used to request registration of the second USIM.
  • the access network device receives the second route identifier and the first NAS request message from the terminal device through the first control plane connection.
  • the second routing identifier and the first NAS request message in step 702C may be carried in the same RRC message and sent to the access network device, which is not limited here.
  • the access network device sends the first NAS request message to the second AMF network element according to the second route identifier.
  • the second AMF network element receives the first NAS request message from the access network device.
  • the terminal device can send the first indication information to the second AMF network element.
  • the solution also includes steps 704-709.
  • the second AMF network element acquires the subscription information of the second USIM according to the identifier of the second USIM.
  • step 704 reference may be made to the description of step 604 in FIG. 6 , and details are not repeated here.
  • the second AMF network element associates the identifier of the first USIM with the second context information of the second USIM according to the first indication information and the subscription information of the second USIM.
  • the second context information of the second USIM includes one or more of the following: the identity of the second USIM, the NGAP identity of the second USIM, the second NAS context information, the connection management status information of the second USIM, the second USIM registration status information.
  • the second context information of the second USIM is the context information of the second USIM in the second AMF network element.
  • step 705 may include: when the access network device is a shared access network device, the second AMF network element, according to the first indication information and the subscription information of the second USIM, associates the identifier of the first USIM with the second USIM The second context information of the two USIMs is associated.
  • the access network device is a shared access network device, it can be understood as: in the case that the access network device supports the network sharing mode of the MOCN mode, no limitation is set here.
  • the second AMF network element may also send the NGAP identifier of the first USIM according to the first indication information and the subscription information of the second USIM.
  • the identifier is associated with the second context information of the second USIM.
  • the second AMF network element may also send the second context information of the first USIM and the second context information of the first USIM according to the first indication information and the subscription information of the second USIM.
  • the second context information of the two USIMs is associated. It can be understood that, when the access network device is a shared access network device, the second AMF network element can share the second context information of the first USIM and the second USIM The second context information association of .
  • the second context information of the first USIM includes one or more of the following: the identifier of the first USIM, the NGAP identifier of the first USIM, the first NAS context information, the connection management state information of the first USIM, the first USIM registration status information.
  • the second context information of the first USIM is the context information of the first USIM in the first AMF network element.
  • the second AMF network element sends second indication information to the access network device, where the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the second AMF network element sends the second indication information to the access network device according to the first indication information and the subscription information of the second USIM.
  • the second AMF network element sends the second indication information to the access network device through a request message, where the request message is used to request to establish N2 signaling of the second USIM between the second AMF network element and the access network device connect.
  • the access network device receives the request message from the second AMF network element.
  • the request message in step 706 may be, for example, an initial context establishment request message or other messages, which is not limited here.
  • step 706 may include: the second AMF network element sends a request message to the access network device according to the identifier of the first USIM, the first indication information and the subscription information of the second USIM.
  • the second AMF network element may also receive the NGAP identifier of the first USIM, the first indication information, and the subscription information of the second USIM , and send a request message to the access network device.
  • the request message in step 706 may also include a response message to the first NAS request message in step 709, and in this case, step 709 is not executed.
  • the response message of the first NAS request message is a registration acceptance message
  • the response message of the first NAS request message is a service acceptance message information.
  • the access network device sends a response message to the request message to the second AMF network element, and the response message to the request message is used to indicate that the N2 signaling connection of the second USIM between the second AMF network element and the access network device is successfully established .
  • the second AMF network element receives the response message of the request message from the access network device.
  • the response message of the request message in step 707 may be, for example, a response message of the initial context establishment request message or other messages, which is not limited here.
  • the access network device associates the first context information of the first USIM with the first context information of the second USIM according to the second indication information.
  • step 708 reference may be made to the description of method 2 in step 505 in FIG. 5 , and details are not repeated here.
  • step 708 may be performed before step 707.
  • the second AMF network element sends a response message to the first NAS request message to the terminal device, and the response message to the first NAS request message is used to indicate that the registration of the second USIM is completed.
  • the terminal device receives the response message of the first NAS request message from the second AMF network element.
  • step 709 may include: the second AMF network element sends a response message of the first NAS request message to the terminal device through the access network device.
  • the access network device can also map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device can also map the data plane of the second USIM, PDU The session and the QoS flow are mapped to the first DRB; or, the access network device may map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device maps the data plane of the second USIM, The PDU session and QoS flow are mapped to the second DRB, which is not limited here.
  • the access network device may map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device maps the data plane of the second USIM, The PDU session and QoS flow are mapped to the second DRB, which is not limited here.
  • the first DRB and the second DRB reference may be made to the related descriptions involved in step 607 in FIG. 6 , and details are not repeated here.
  • the terminal device can obtain the network identifier used to identify one or more networks supported by the access network device from the access network device, and the first USIM and the second USIM included in the terminal device belong to the networks supported by the access network device.
  • the terminal device sends the first indication information to the second AMF network element through the access network device, so that the second AMF network element sends the second indication information to the access network device after the authorization is passed.
  • the access network device can enable multiple universal subscriber identity modules to establish the same control plane connection with the access network device when the core network is authorized, thereby reducing the communication connection capacity, reducing network congestion, and improving communication capabilities And reduce the energy consumption of the terminal equipment.
  • the terminal device can also send the second routing identifier and the first NAS request message to the access network device, so that the access network device can send the first NAS request message to the second AMF network element according to the second routing identifier, thereby realizing Register a second USIM.
  • Fig. 8 is a solution in another scenario provided by the embodiment of the present application: both the first USIM and the second USIM are in the idle state, but the first USIM first enters the connected state from the idle state, and the first USIM requests to establish The communication connection with the first AMF network element needs to go through the authorization process of the core network, and the second USIM enters the connected state from the idle state after the first USIM enters the connected state, the second USIM requests to establish the same as the first USIM
  • the communication connection between the two AMF network elements needs to combine the credential information to realize the authorization process of the core network.
  • the access network device in FIG. 8 is the access network device 10 in FIG. 2
  • the terminal device in FIG. 8 is the terminal device 20 in FIG. 2
  • the first AMF network element in FIG. 8 is the The first AMF network element 30.
  • the method includes but is not limited to the following steps:
  • the access network device sends a network identifier to the terminal device, where the network identifier is used to identify one or more networks supported by the access network device.
  • the terminal device includes a first USIM and a second USIM.
  • step 801 reference may be made to the description of step 501 in FIG. 5 , and details are not repeated here.
  • the solution further includes: when the first USIM and the second USIM belong to one or more networks supported by the access network device, the terminal device sends the first routing identifier to the access network device and a sixth NAS request message, where the sixth NAS request message is used to request registration of the first USIM.
  • the first routing identifier is used to address the first AMF network element, and the first routing identifier may include one or more of the following: an identifier of the first network, an identifier of the first USIM, or an identifier of the first AMF network element.
  • the identifier of the first USIM may be used to indicate the first AMF network element or the first network, and the first USIM belongs to the first network.
  • the identifier of the first network may be the first PLMN identifier.
  • the first PLMN identifier may be used to identify the operator network supported by the access network device.
  • the upper bits of the first GUTI may include the identifier of the first network or the identifier of the first AMF network element, and the first All bits of the GUTI may be the first USIM's identifier; if the first route identifier includes the first network's identifier and the first USIM's identifier, and the first USIM's identifier is the first S-TMSI, then the first S-TMSI's
  • the upper bits may be the unique identifier of the first AMF network element in the first network, and all the bits of the first S-TMSI may be the unique identifier of the first USIM in the first network.
  • the sixth NAS request message may be a registration acceptance message or a service acceptance message, which is not limited here.
  • the terminal device may also send fifth indication information to the access network device, and the fifth indication information may or may not be included in the sixth NAS request message, which is not limited here.
  • the fifth indication information may be the identity of the second USIM, or, the fifth indication information may be the identity of the first USIM and the identity of the second USIM, or, the fifth indication information is not the identity of the second USIM and is not the identity of the first USIM.
  • the identifier of the USIM and the identifier of the second USIM is not the identity of the second USIM and is not the identity of the first USIM and the identity of the second USIM.
  • the identity of the second USIM is irrelevant.
  • the terminal device may also send the identifier of the first USIM to the access network device, and the identifier of the first USIM may be included in the sixth NAS request message.
  • the fifth indication information is the identity of the second USIM
  • the terminal device may also send the identifier of the second USIM to the access network device.
  • the identifier of the second USIM may or may not be included in the sixth NAS request message, which is not limited here.
  • aspect A including steps 802A-809A, the fifth indication information in aspect A is not the identity of the second USIM and is not the identity of the first USIM and the identity of the second USIM;
  • Aspect B includes step 802B.
  • the fifth indication information in aspect B is the identity of the second USIM or the fifth indication information in aspect B is the identity of the first USIM and the identity of the second USIM.
  • the terminal device sends the identifier of the second USIM, the first routing identifier and the sixth NAS request message to the access network device , the sixth NAS request message includes fifth indication information, the sixth NAS request message further includes the identifier of the first USIM, and the sixth NAS request message is used to request registration of the first USIM.
  • the access network device receives the identifier of the second USIM, the first routing identifier and the sixth NAS request message from the terminal device.
  • the identifier of the second USIM, the identifier of the first route and the sixth NAS request message in step 802A may be carried in the same RRC message and sent to the access network device, which is not limited here.
  • the access network device sends the fifth indication information, the sixth NAS request message, and the second USIM identifier to the first AMF network element according to the first route identifier.
  • the first AMF network element receives the fifth indication information, the sixth NAS request message and the identifier of the second USIM from the access network device.
  • the fifth indication information, the sixth NAS request message and the identifier of the second USIM in step 803A may be carried in the N2 message of the first USIM and sent to the first AMF network element.
  • the N2 message of the first USIM may be, for example, an initial UE message or other messages, which will not be described in detail here.
  • the access network device may also send the NGAP identifier of the second USIM to the first AMF network element according to the first routing identifier.
  • the NGAP identifier of the second USIM reference may be made to the NGAP identifier of the second USIM involved in step 502 in FIG. 5 , which will not be repeated here.
  • the first AMF network element acquires the subscription information of the first USIM according to the identifier of the first USIM.
  • the subscription information of the first USIM includes one or more of the following: allowing the first USIM to share the same control plane connection with the second USIM, allowing the first USIM to share the same control plane connection with USIMs other than the first USIM, allowing The first USIM shares the same control plane connection with USIMs other than the first USIM belonging to the first network, or an identifier of a USIM that is allowed to share the same control plane connection with the first USIM.
  • the identifier of the USIM allowed to share the same control plane connection with the first USIM may include the identifier of the second USIM.
  • step 804A can be understood as: the first AMF network element obtains the subscription information of the first USIM from the first UDM network element according to the identifier of the first USIM.
  • the first AMF network element associates the identity of the second USIM with the second context information of the first USIM according to the fifth indication information and the subscription information of the first USIM, and acquires the first credential information.
  • the first credential information is used to indicate one or more of the following: the first network allows the first USIM and the second USIM to share the same control plane connection, or the first network allows the first USIM to share the same control plane connection with the first USIM USIMs share the same control plane connection.
  • step 805A may include: when the access network device is a shared access network device, the first AMF network element associates the identity of the second USIM with the first USIM according to the fifth indication information and the subscription information of the first USIM.
  • the second context information association of a USIM may include: when the access network device is a shared access network device, the first AMF network element associates the identity of the second USIM with the first USIM according to the fifth indication information and the subscription information of the first USIM.
  • the second context information association of a USIM may include: when the access network device is a shared access network device, the first AMF network element associates the identity of the second USIM with the first USIM according to the fifth indication information and the subscription information of the first USIM.
  • the second context information association of a USIM may include: when the access network device is a shared access network device, the first AMF network element associates the identity of the second USIM with the first USIM according to the fifth indication information and the subscription information of the first USIM.
  • the first AMF network element may also send the NGAP identifier of the second USIM according to the fifth indication information and the subscription information of the first USIM.
  • the identifier is associated with the second context information of the first USIM.
  • the first AMF network element may also send the second context information of the first USIM and the second context information of the first USIM according to the fifth indication information and the subscription information of the first USIM.
  • the second context information of the two USIMs is associated. It can be understood that, when the access network device is a shared access network device, the second AMF network element can share the second context information of the first USIM with the second USIM The second context information association of .
  • the first AMF network element sends the first credential information to the access network device.
  • the first AMF network element sends a first request message to the access network device according to the fifth indication information and the subscription information of the first USIM, the first request message includes the first credential information, and the first request message is used to request the establishment of the first USIM An N2 signaling connection of the first USIM between an AMF network element and an access network device.
  • the access network device receives the first request message from the first AMF network element.
  • the first request message in step 806A may be, for example, an initial context establishment request message or other messages, which is not limited here.
  • step 806A may include: the first AMF network element sends the first request message to the access network device according to the identifier of the second USIM, the fifth indication information and the subscription information of the first USIM. If the first AMF network element can also receive the NGAP identifier of the second USIM from the access network device, the first AMF network element can also send the information to the access network according to the NGAP identifier of the second USIM, the fifth indication information, and the subscription information of the first USIM. The network access device sends a first request message.
  • the first request message in step 806A may also include the NAS response message in step 808A, in this case, step 808A is not executed.
  • the access network device sends a response message to the first request message to the second AMF network element, and the response message to the first request message is used to indicate the N2 information of the first USIM between the first AMF network element and the access network device. Make the connection establishment successful.
  • the second AMF network element receives the response message of the first request message from the access network device.
  • the response message of the first request message in step 807A may be, for example, a response message of the initial context establishment request message or other messages, which is not limited here.
  • the first AMF network element sends a response message of the sixth NAS request message to the terminal device, the response message of the sixth NAS request message is used to indicate that the registration of the first USIM has been completed, and the response message of the sixth NAS request message includes the first credential information.
  • the terminal device receives the response message of the sixth NAS request message from the first AMF network element.
  • step 808A may include: the first AMF network element sends a response message of the sixth NAS request message to the terminal device through the access network device.
  • this solution further includes: the terminal device sends the second NAS request message to the access network device through the first control plane connection The route identifier and the first NAS request message.
  • the terminal device sends the second NAS request message to the access network device through the first control plane connection The route identifier and the first NAS request message.
  • the terminal device may also send the first indication information to the access network device through the first control plane connection, and the first indication information may or may not be included in the first NAS request message, which is not limited here.
  • the first indication information reference may be made to the first indication information involved in step 502 and step 503 in FIG. 5 , which will not be repeated here.
  • step 808A the steps involved in this solution can refer to the content after step 701 in FIG. 7 .
  • steps 809A-811A involved in this solution are the same as step 702A included in embodiment A in FIG. 7 - 703A, steps 702B-703B included in Embodiment B or steps 702C-703C included in Embodiment C are similar, and the differences are as follows:
  • step 809A may be: the terminal device sends the first credential information, the identifier of the first USIM, and the second routing identifier to the access network device through the first control plane connection and a first NAS request message, the first NAS request message includes first indication information, the first NAS request message further includes an identifier of the second USIM, and the first NAS request message is used to request registration of the second USIM.
  • step 809A may be: the terminal device sends the first credential information, the second routing identifier and the first NAS request message to the access network device through the first control plane connection, and the first NAS request message includes the first indication information (the first The indication information is the identifier of the first USIM), the first NAS request message further includes the identifier of the second USIM, and the first NAS request message is used to request registration of the second USIM.
  • step 809A may be :
  • the terminal device sends the first credential information, the second routing identifier and the first NAS request message to the access network device through the first control plane connection, and the first NAS request message includes the first indication information (the first indication information is the first USIM and the identity of the second USIM), the first NAS request message is used to request registration of the second USIM.
  • the access network device receives the first credential information, the second routing identifier, and the first NAS request message from the terminal device through the first control plane connection.
  • the access network device may also send the first credential information to the second AMF network element according to the second route identifier.
  • step 811A this solution also includes steps 812A-816A, steps 812A-816A are similar to steps 704-709 in Figure 7, the differences are as follows:
  • the second AMF network element may also obtain the second credential information, and associate the first credential information and the second credential information with the second context information of the second USIM.
  • step 813A when referring to step 706 in Figure 7, the request message in step 706 needs to be replaced with: the second request message in step 813A, and the second request message in step 813A can also include the first credential information and the second credential information, and the second instruction information in step 813A does not include the second credential information, and/or, the second instruction information does not include the first credential information and the second credential information.
  • the second request message in step 813A may be, for example, an initial context establishment request message or other messages, which is not limited here.
  • the response message of the request message in step 707 needs to be replaced by: the response message of the second request message in step 814A.
  • the response message of the second request message in step 814A may be, for example, an initial context establishment response message or other messages, which is not limited here.
  • step 708 is: the access network device associates the first context information of the first USIM with the first context information of the second USIM according to the second indication information
  • step 815A is: the access network device associates the first context information of the second USIM with the first certificate information and one or more of the following: second indication information, second credential information, and associate the first context information of the first USIM with the first context information of the second USIM.
  • the response message of the first NAS request message in step 816A may also include the second credential information.
  • the second credential information is used to indicate one or more of the following: the second network allows the first USIM and the second USIM to share the same control plane connection, or the second network allows the second USIM to share the same control plane connection with the second USIM USIMs share the same control plane connection.
  • the terminal device sends the first route identifier and the sixth NAS request message to the access network device, and the sixth NAS request message
  • the fifth indication information is included
  • the sixth NAS request message further includes the identifier of the first USIM
  • the sixth NAS request message is used to request registration of the first USIM.
  • the access network device receives the first route identifier and the sixth NAS request message from the terminal device.
  • the first routing identifier and the sixth NAS request message in step 802B may be carried in the same RRC message and sent to the access network device, which is not limited here.
  • the access network device sends a sixth NAS request message to the first AMF network element according to the first route identifier.
  • the first AMF network element receives the sixth NAS request message from the access network device.
  • the sixth NAS request message in step 803B may carry the N2 message in the first USIM and send it to the first AMF network element.
  • the N2 message of the first USIM may be, for example, an initial UE message or other messages, which will not be described in detail here.
  • the access network device may also send the NGAP identifier of the second USIM to the first AMF network element according to the first routing identifier.
  • the NGAP identifier of the second USIM reference may be made to the NGAP identifier of the second USIM involved in step 502 in FIG. 5 , which will not be repeated here.
  • 804B-8016B are the same as steps 804A-8016A, and will not be repeated here.
  • the access network device can also map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device can also map the data plane of the second USIM plane, PDU session, and QoS flow to the first DRB; or, the access network device can map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device maps the data plane of the second USIM to the first DRB.
  • the data plane, PDU session, and QoS flow are mapped to the second DRB, which is not limited here.
  • the access network device may also send the second credential information to the terminal device.
  • the terminal device may send the first credential information and the second credential information to the first AMF network element, or the terminal device may send the second credential to the first AMF network element or, the terminal device may send the first credential information and the second credential information to the second AMF network element, or, the terminal device may send the first credential information to the second AMF network element, which is not limited here.
  • the terminal device can obtain the network identifier used to identify one or more networks supported by the access network device from the access network device, and the first USIM and the second USIM included in the terminal device belong to the networks supported by the access network device.
  • the terminal device can realize that the first USIM enters the connected state from the idle state in three ways. After the first USIM enters the connected state from the idle state, the terminal device sends the first indication information to the second AMF network element through the access network device, so that the second AMF network element sends the second indication information to the access network device after the authorization is passed.
  • the access network equipment can enable multiple universal subscriber identity modules to establish the same control plane connection with the access network equipment under the condition that the core network authorization is passed, thereby reducing the communication connection capacity, reducing network congestion, and improving Communication capability and reduced energy consumption of terminal equipment.
  • the terminal device can also send the second routing identifier and the first NAS request message to the access network device, so that the access network device can send the first NAS request message to the second AMF network element according to the second routing identifier, thereby realizing Register a second USIM.
  • both the first USIM and the second USIM are in the idle state, the first USIM and the second USIM enter the connected state from the idle state at the same time, and the first USIM requests to establish a connection with the second USIM
  • the communication connection between one AMF network element needs to go through the authorization process of the core network, and the second USIM needs to go through the core network authorization process when requesting to establish a communication connection with the second AMF network element.
  • the method includes but is not limited to the following steps:
  • the access network device sends a network identifier to the terminal device, where the network identifier is used to identify one or more networks supported by the access network device.
  • the terminal device includes a first USIM and a second USIM.
  • step 901 may be the same as step 501 in FIG. 5 , and will not be repeated here.
  • this solution can also be implemented by any one of the following three methods:
  • Method 1 includes steps 902A-915A, wherein the first indication information in method 1 is not the identity of the first USIM and/or the identity of the second USIM; method 2 includes steps 902B-915B, wherein the The first indication information is the identifier of the first USIM and the identifier of the second USIM.
  • the terminal device when the first USIM and the second USIM belong to one or more networks, the terminal device sends a first message to the access network device, where the first message includes the second NAS request message, the second Three NAS request messages, a first routing identifier and a second routing identifier, the second NAS request message includes the identifier of the first USIM, and the third NAS request message includes the identifier of the second USIM.
  • the terminal device may also send the first indication information to the access network device, the first indication information may be included in the second NAS request message and the third NAS request message, or the first indication information may not be included in the second NAS request message message and the third NAS request message, which are not limited here.
  • FIG. 9A may include step 901.
  • FIG. 9A may also include but not limited to the following steps:
  • the terminal device sends the first message to the access network device.
  • step 902A may include: when the first USIM and the second USIM belong to one or more networks, sending a first message to the access network device, the first message includes the first indication information, the second NAS A request message, a third NAS request message, a first route identifier and a second route identifier.
  • the second NAS request message includes the identifier of the first USIM
  • the third NAS request message includes the identifier of the second USIM.
  • the second NAS request message is used to request registration of the first USIM
  • the third NAS request message is used to request registration of the second USIM.
  • the terminal device sends the first indication information, the second NAS request message, the third NAS request message, the first route identifier and the second route identifier to the access network device through the first RRC message.
  • the first RRC message can be, for example, an uplink information transfer (UL information transfer) or an RRC establishment request message, which is not limited here.
  • the access network device sends the second NAS request message, the first indication information, and one or more of the following to the first AMF network element according to the first routing identifier: the identifier of the second USIM or the NGAP identifier of the second USIM.
  • the first AMF network element receives from the access network device the second NAS request message, the first indication information, and one or more of the following items: the identity of the second USIM or the NGAP identity of the second USIM.
  • the second NAS request message, the first indication information, and one or more of the following: the second USIM's identifier or the second USIM's NGAP identifier can be carried in the N2 message of the first USIM and sent to the first AMF network Yuan.
  • the N2 message of the first USIM reference may be made to the relevant description of step 803A in FIG. 8 , and details are not repeated here.
  • the first AMF network element acquires the subscription information of the first USIM according to the identifier of the first USIM.
  • step 904A reference may be made to step 804A in FIG. 8 , which will not be repeated here.
  • the first AMF network element associates the identifier of the second USIM and/or the NGAP identifier of the second USIM with the second context information of the first USIM according to the first indication information and the subscription information of the first USIM.
  • step 805A in FIG. 8 For the second context information of the first USIM, reference may be made to the related description of step 805A in FIG. 8 , and details are not repeated here.
  • the first AMF network element sends third indication information to the access network device, where the third indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the access network device receives third indication information from the first AMF network element.
  • the first AMF network element sends a third request message to the access network device according to the first indication information and the subscription information of the first USIM, the third request message includes the third indication information, and the third request message is used to request the establishment of the first USIM An N2 signaling connection of the first USIM between an AMF network element and an access network device.
  • the third indication information may include an identifier of the second USIM. If the first AMF network element can also receive the NGAP identifier of the second USIM from the access network device, then the third indication information can also include the NGAP identifier of the second USIM. Wherein, the identity of the second USIM or the NGAP identity of the second USIM is used to indicate that the first AMF network element allows the first USIM to share the same control plane connection with USIMs other than the first USIM, or, the identity of the second USIM or the second USIM The NGAP identifier of the two USIMs is used to instruct the first AMF network element to allow the first USIM and the second USIM to share the same control plane connection.
  • the third indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same, including one or more of the following situations: the third indication information is used by the first AMF network element to allow the first USIM to communicate with the second control plane USIMs other than the first USIM share the same control plane connection; or, the third indication information is used for the first AMF network element to allow the first USIM and the second USIM to share the same control plane connection; or, the third indication information is used for the first AMF network element to allow the first USIM and the second USIM to share the same control plane connection;
  • An AMF network element is allowed to associate the first context information of the first USIM with the first context information of the second USIM, which is not limited here.
  • the third request message in step 906A may be, for example, an initial context establishment request message or other messages, which is not limited here.
  • step 906A may include: the first AMF network element reports to the access The network device sends a third request message.
  • the third request message in step 906A may also include a response message to the second NAS request message in step 908A, and in this case, step 908A is not executed.
  • the access network device sends a response message to the third request message to the first AMF network element, and the response message to the third request message is used to indicate the N2 information of the first USIM between the first AMF network element and the access network device. Make the connection establishment successful.
  • the first AMF network element receives the response message of the third request message from the access network device.
  • the first AMF network element sends a response message of the second NAS request message to the terminal device, and the response message of the second NAS request message is used to indicate that the registration of the first USIM is completed.
  • the terminal device receives the response message of the second NAS request message from the first AMF network element.
  • step 908A may include: the first AMF network element sends a response message of the second NAS request message to the terminal device through the access network device.
  • the access network device sends the third NAS request message, the first indication information, and one or more of the following to the second AMF network element according to the second route identifier: the identifier of the first USIM or the NGAP identifier of the first USIM.
  • the second AMF network element receives the third NAS request message, the first indication information and one or more of the following items from the access network device: the identifier of the first USIM or the NGAP identifier of the first USIM.
  • the third NAS request message, the first indication information, and one or more of the following: the first USIM's identity or the first USIM's NGAP identity can be carried in the second USIM's N2 message and sent to the second AMF network Yuan.
  • the N2 message of the second USIM reference may be made to the relevant description of step 703A in FIG. 7 , and details are not repeated here.
  • the second AMF network element acquires the subscription information of the second USIM according to the identifier of the second USIM.
  • step 910A reference may be made to step 704A in FIG. 7 , and details are not repeated here.
  • the second AMF network element associates the identifier of the first USIM and/or the NGAP identifier of the first USIM with the second context information of the second USIM according to the first indication information and the subscription information of the second USIM.
  • step 705A in FIG. 7 For the second context information of the second USIM, reference may be made to the relevant description of step 705A in FIG. 7 , and details are not repeated here.
  • the second AMF network element sends second indication information to the access network device, where the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the access network device receives the second indication information from the second AMF network element.
  • the second AMF network element sends a fourth request message to the access network device according to the first indication information and the subscription information of the second USIM, the fourth request message includes the second indication information, and the fourth request message is used to request the establishment of the second USIM The N2 signaling connection of the second USIM between the two AMF network elements and the access network equipment.
  • step 706A in FIG. 7 For the second indication information, reference may be made to the relevant description of step 706A in FIG. 7 , and details are not repeated here.
  • the fourth request message in step 912A may be, for example, an initial context establishment request message or other messages, which is not limited here.
  • step 912A may include: the second AMF network element reports to the access The network device sends a fourth request message.
  • the fourth request message in step 912A may also include a response message to the third NAS request message in step 914A. In this case, step 914A is not executed.
  • the access network device sends a response message of the fourth request message to the second AMF network element, and the response message of the fourth request message is used to indicate that the N2 information of the second USIM between the second AMF network element and the access network device Make the connection establishment successful.
  • the second AMF network element receives the response message of the fourth request message from the access network device.
  • the response message of the fourth request message may be, for example, an initial context establishment response message or other messages, which is not limited here.
  • the second AMF network element sends a response message to the third NAS request message to the terminal device, where the response message to the third NAS request message is used to indicate that the registration of the second USIM is completed.
  • the terminal device receives the response message of the third NAS request message from the second AMF network element.
  • step 914A may include: the second AMF network element sends a response message of the third NAS request message to the terminal device through the access network device.
  • Step 902A-Step 909A may be performed after Step 910A-914A, or Step 902A-Step 909A and Step 910A-914A may be performed simultaneously, which is not limited here.
  • the access network device associates the first context information of the first USIM with the first context information of the second USIM according to the second indication information and the third indication information.
  • step 915A may be performed at any step after the access network device receives the third indication information from the first AMF network element, and the access network device receives the second indication information from the second AMF network element.
  • FIG. 9B may include step 901.
  • FIG. 9B may also include but not limited to the following steps:
  • the terminal device sends the first message to the access network device.
  • step 902B may include: when the first USIM and the second USIM belong to one or more networks supported by the access network device, sending a first message to the access network device, the first message including the fourth A NAS request message, a fifth NAS request message, a first routing identifier and a second routing identifier.
  • the fourth NAS request message is used to request registration of the first USIM
  • the fifth NAS request message is used to request registration of the second USIM.
  • the terminal device sends the fourth NAS request message, the fifth NAS request message, the first route identifier and the second route identifier to the access network device through the first message.
  • the fourth NAS request message and the fifth NAS request message include first indication information, where the first indication information is an identifier of the first USIM and an identifier of the second USIM.
  • the first message further includes first indication information, where the first indication information is an identifier of the first USIM and an identifier of the second USIM.
  • the fourth NAS request message includes the identifier of the first USIM, and the fifth NAS request message includes the identifier of the second USIM.
  • the access network device sends the fourth NAS request message and one or more of the following items to the first AMF network element according to the first route identifier: the identifier of the second USIM or the NGAP identifier of the second USIM.
  • the first AMF network element receives the fourth NAS request message and one or more of the following items from the access network device: the identity of the second USIM or the NGAP identity of the second USIM.
  • the fourth NAS request message and one or more of the following: the identity of the second USIM or the NGAP identity of the second USIM may be carried in the N2 message of the first USIM and sent to the first AMF network element.
  • the N2 message of the first USIM reference may be made to the relevant description of step 803A in FIG. 8 , and details are not repeated here.
  • step 908B Similar to step 908A, the difference is that, for step 908B, when referring to step 908A, it is necessary to replace the second NAS request message in step 908A with the fourth NAS request message.
  • the access network device sends the fifth NAS request message and one or more of the following items to the second AMF network element according to the second route identifier: the identifier of the first USIM or the NGAP identifier of the first USIM.
  • the second AMF network element receives the fifth NAS request message and one or more of the following items from the access network device: the identifier of the first USIM or the NGAP identifier of the first USIM.
  • the fifth NAS request message and one or more of the following items: the identifier of the first USIM or the NGAP identifier of the first USIM may be carried in the N2 message of the second USIM and sent to the second AMF network element.
  • the identifier of the first USIM or the NGAP identifier of the first USIM may be carried in the N2 message of the second USIM and sent to the second AMF network element.
  • step 914B Similar to step 914A, the difference is that, for step 914B, when referring to step 914A, it is necessary to replace the third NAS request message in step 914A with the fifth NAS request message.
  • step 915B It is the same as step 915A and will not be repeated here.
  • the access network device can also map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device can also map the data plane of the second USIM plane, PDU session, and QoS flow to the first DRB; or, the access network device can map the data plane, PDU session, and QoS flow of the first USIM to the first DRB, and the access network device maps the data plane of the second USIM to the first DRB.
  • the data plane, PDU session, and QoS flow are mapped to the second DRB, which is not limited here.
  • the terminal device can obtain the network identifier used to identify one or more networks supported by the access network device from the access network device, and the first USIM and the second USIM included in the terminal device belong to the networks supported by the access network device.
  • the terminal device may send the first indication information to the access network device through the same RRC message, so that the second AMF network element sends the second indication information to the access network device after the authorization is passed,
  • the access network equipment can enable multiple universal subscriber identity modules to establish the same control plane connection with the access network equipment under the condition that the core network authorization is passed, thereby reducing the communication connection capacity, reducing network congestion, improving communication capabilities and The energy consumption of terminal equipment is reduced.
  • the terminal device can also send the routing identifier and the NAS request message to the access network device through the same RRC message, so that the access network device can send the NAS request message to the AMF network element according to the routing identifier, thereby realizing the registration of the USIM.
  • each network element includes a corresponding hardware structure and/or software module for performing each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
  • the embodiment of the present application can divide the functional modules of the terminal device or the access network device or the second AMF network element according to the above-mentioned method examples.
  • each functional module can be divided corresponding to each function, or two or more than two Functions are integrated in one processing module, and the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1000 can be applied to the above methods shown in FIGS. 5-9 .
  • the communication device 1000 includes: a processing module 1001 and a transceiver module 1002 .
  • the processing module 1001 may be one or more processors, and the transceiver module 1002 may be a transceiver or a communication interface.
  • the communication device may be used to implement the terminal device or the access network device or the second AMF network element involved in any of the above method embodiments, or be used to implement the functions of the network elements involved in any of the above method embodiments.
  • the network element or network function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • the communication device 1000 may further include a storage module 1003 for storing program codes and data of the communication device 1000 .
  • the transceiver module 1002 is used to support communication with access network devices, etc.
  • the transceiver module specifically performs the sending and/or receiving actions performed by the terminal device in Figure 5-9B, for example, supporting the terminal device to perform steps 502 and 602 One or more steps in, and/or other processes for the techniques described herein.
  • the processing module 1001 may be used to support the communication apparatus 1000 to execute the processing actions in the foregoing method embodiments, for example, to support the terminal device to execute other processes of the technologies described herein.
  • the transceiver module 1002 is used to support communication with terminal equipment, etc., and specifically perform the sending and/or receiving actions performed by the access network equipment in Figure 5-9B, for example, support the access network equipment to perform step 501 and step 501.
  • the processing module 1001 may be used to support the communication apparatus 1000 to perform the processing actions in the above method embodiments, for example, support the access network device to perform one or more steps in step 607 and step 708A, and/or use the technology described herein other processes.
  • the transceiver module 1002 is configured to support communication with terminal equipment, etc., and specifically perform the sending and/or receiving actions performed by the second AMF network element in FIGS. 5-9B , for example, support the second AMF network element to perform step 605 and one or more steps in step 706A, and/or other processes for the techniques described herein.
  • the processing module 1001 can be used to support the communication device 1000 to perform the processing actions in the above method embodiments, for example, support the second AMF network element to perform one or more steps in step 604 and step 704A, and/or be used for the Other processes of technology.
  • the transceiver module 1002 may be an interface, a pin, or a circuit.
  • the interface can be used to input the data to be processed to the processor, and can output the processing result of the processor.
  • the interface can be a general purpose input output (GPIO) interface, which can communicate with multiple peripheral devices (such as display (LCD), camera (camara), radio frequency (radio frequency, RF) modules, antennas, etc. )connect.
  • the interface is connected with the processor through the bus.
  • the processing module 1001 may be a processor, and the processor may execute computer-executed instructions stored in the storage module, so that the chip executes the methods involved in the embodiments of FIG. 5 to FIG. 9B .
  • the processor may include a controller, an arithmetic unit and registers.
  • the controller is mainly responsible for decoding instructions and sending control signals for operations corresponding to the instructions.
  • the arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logic operations, and can also perform address operations and conversions.
  • the register is mainly responsible for saving the register operands and intermediate operation results temporarily stored during the execution of the instruction.
  • the hardware architecture of the processor can be application specific integrated circuits (ASIC) architecture, microprocessor without interlocked piped stages architecture (MIPS) architecture, advanced streamlined instructions Advanced RISC machines (ARM) architecture or network processor (network processor, NP) architecture, etc.
  • Processors can be single-core or multi-core.
  • the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module can also be a storage module located outside the chip, such as read-only memory (Read Only Memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (Random Access Memory, RAM), etc. .
  • processors and the interface can be realized through hardware design, software design, or a combination of software and hardware, which is not limited here.
  • Fig. 11 is a communication system provided by an embodiment of the present application.
  • the communication system includes access network equipment and mobility management network elements.
  • the communication system may further include terminal equipment.
  • the access network device is configured to send the first instruction information to the second mobility management network element according to the second routing identifier, and the second routing identifier is used to address the second mobility management network element;
  • the first instruction information uses In order to indicate that the first control plane connection between the first USIM and the access network device is the same as the second control plane connection between the second USIM and the access network device;
  • the mobility management network element is used to the subscription information, and send second indication information to the access network device, where the second indication information is used to indicate that the first control plane connection and the second control plane connection are allowed to be the same.
  • the access network device is further configured to associate the first context information of the first USIM with the first context information of the second USIM according to the second indication information.
  • the access network device is further configured to send the second NAS request message and the first indication information to the first mobility management network element according to the first routing identifier And one or more of the following: the identity of the second USIM or the NGAP identity of the second USIM, the NGAP identity of the second USIM is assigned by the access network equipment for the second USIM to establish a relationship with the second mobility management network element
  • the identifier of the NGAP signaling connection between, the second NAS request message is used to register the first USIM
  • the third NAS request message is used to register the second USIM
  • the first routing identifier is used to address the first mobility management network element
  • the second routing identifier is used to address the second mobility management network element; if the mobility management network element is the second mobility management network element, the access network device is also used to address the second mobility management network element according to the second routing identifier
  • the unit sends the third NAS request message, the first indication information and one or more of the following: the first
  • the access network device is further configured to send a fourth NAS request message to the first mobility management network element according to the first routing identifier; if the mobility management The network element is the second mobility management network element, and the access network device is further configured to send the fifth NAS request message to the second mobility management network element according to the second routing identifier; the first indication information is the identifier of the first USIM and the identifier of the first USIM.
  • the fourth NAS request message includes the first indication information
  • the fifth NAS request message includes the first indication information
  • the fourth NAS request message is used to request registration of the first USIM
  • the fifth NAS request message is used to request registration of the second USIM.
  • the first routing identifier is used to address the first mobility management network element
  • the second routing identifier is used to address the second mobility management network element.
  • the first mobility management network element is further configured to send third indication information to the access network device, and the third indication information is used to indicate that the first mobile The mobility management network element allows the first USIM and the second USIM to share the same control plane connection; if the mobility management network element is the second mobility management network element, the second mobility management network element is also used to send the first USIM to the access network device Two indication information, the second indication information is used to indicate that the second mobility management network element allows the second USIM and the first USIM to share the same control plane connection; the access network device is also used to, according to the third indication information and the second indication information, Associating the first context information of the first USIM with the first context information of the second USIM.
  • the mobility management network element is further configured to determine that the first USIM and the second USIM are allowed to share the same control plane connection according to the first indication information and the subscription information of the second USIM.
  • the mobility management network element is configured to associate the identifier of the first USIM and/or the NGAP identifier of the first USIM with the second context information of the second USIM according to the first indication information and the subscription information of the second USIM.
  • FIG. 12 is a schematic structural diagram of a simplified terminal device provided by an embodiment of the present application.
  • a mobile phone is used as an example of a terminal device.
  • the terminal device includes at least one processor, and may also include a radio frequency circuit, an antenna, and an input and output device.
  • the processor can be used to process communication protocols and communication data, and can also be used to control terminal equipment, execute software programs, process data of software programs, and the like.
  • the terminal device may also include a memory, which is mainly used to store software programs and data. These related programs can be loaded into the memory when the communication device leaves the factory, or can be loaded into the memory later when needed.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves, and the antenna is the antenna provided in the embodiment of the present application.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 12 only one memory and processor are shown in FIG. 12 . In an actual terminal device product, there may be one or more processors and one or more memories.
  • a memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and radio frequency circuit with transceiver function can be regarded as the receiving unit and the transmitting unit of the terminal equipment (also collectively referred to as the transceiver unit), and the processor with processing function can be regarded as the processing unit of the terminal equipment .
  • the terminal device includes a receiving module 31 , a processing module 32 and a sending module 33 .
  • the receiving module 31 can also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending module 33 can also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc.
  • the processing module 32 may also be called a processor, a processing board, a processing device, and the like.
  • the processing module 32 is configured to execute the functions of the terminal device in any of the embodiments shown in FIG. 5-FIG. 9B.
  • FIG. 13 is a schematic structural diagram of a simplified access network device provided by an embodiment of the present application.
  • the access network equipment includes a radio frequency signal transceiving and converting part and a part 42, and the radio frequency signal transceiving and converting part further includes a receiving module 41 and a sending module 43 (also collectively referred to as a transceiver module).
  • the RF signal transceiver and conversion part is mainly used for the RF signal transceiver and the conversion of the RF signal and the baseband signal; the 42 part is mainly used for the baseband processing and controlling the access network equipment, etc.
  • the receiving module 41 can also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending module 43 can also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc.
  • Part 42 is usually the control center of the access network equipment, which can usually be referred to as a processing module, and is used to control the access network equipment to perform the steps performed by the terminal equipment or the access network equipment in FIGS. 5-9 above. For details, please refer to the description of the relevant part above.
  • Part 42 may include one or more single boards, and each single board may include one or more processors and one or more memories, and the processors are used to read and execute programs in the memories to realize baseband processing functions and interface network device control. If there are multiple single boards, each single board can be interconnected to increase the processing capacity. As an optional implementation, it is also possible that multiple single boards share one or more processors, or that multiple single boards share one or more memories, or that multiple single boards share one or more processors at the same time. device.
  • the sending module 43 is configured to execute the function of the access network device in any of the embodiments shown in FIG. 5-FIG. 9B.
  • the embodiment of the present application also provides a communication device, including a processor, a memory, an input interface and an output interface, the input interface is used to receive information from other communication devices other than the first device, and the output interface is used to send information to the first device Other communication devices besides output information, and the processor invokes the computer program stored in the memory to realize any one of the embodiments shown in Fig. 5-Fig. 9B.
  • the embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. When the computer program is run, any one of the embodiments shown in FIGS. 5-9B is realized.
  • the embodiment of the present application also provides a computer program product, which enables the computer to implement any of the embodiments shown in FIGS. 5-9B when the computer reads and executes the computer program product.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the above integrated units are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of software products, and the computer software products are stored in a storage medium Among them, several instructions are included to make a computer device (which may be a personal computer, a cloud server, or a network device, etc.) execute all or part of the steps of the above-mentioned methods in various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .
  • U disk mobile hard disk
  • read-only memory ROM, Read-Only Memory
  • RAM random access memory
  • magnetic disk or optical disc etc.
  • the above is only a specific embodiment of the application, but the scope of protection of the application is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the scope of the technology disclosed in the application. Modifications or replacements, these modifications or replacements shall be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé de connexion réseau, un appareil et un système. Le procédé est appliqué à un appareil de communication. L'appareil de communication comprend un premier module d'identité universelle d'abonné (USIM) et un second USIM. Le procédé comprend les étapes consistant : à recevoir un identifiant réseau à partir d'un dispositif réseau d'accès, l'identifiant réseau étant utilisé pour identifier un ou plusieurs réseaux qui sont supportés par le dispositif réseau d'accès ; et lorsque le premier USIM et le second USIM appartiennent auxdits un ou plusieurs réseaux, à envoyer un premier message, le premier message comprenant des premières informations d'indication, et les premières informations d'indication étant utilisées pour indiquer que la connexion entre le premier USIM et un premier plan de contrôle du dispositif de réseau d'accès est la même que la connexion entre le second USIM et un second plan de contrôle du dispositif réseau d'accès. Au moyen de la mise en œuvre des modes de réalisation de la présente invention, lorsqu'une pluralité d'USIM dans un dispositif terminal multi-USIM exécute simultanément l'émission-réception d'une pluralité de services, la consommation d'énergie du dispositif terminal peut être réduite, permettant ainsi une réduction de l'impact sur la capacité de connexion de communication d'une station de base et la congestion de la station de base.
PCT/CN2021/103899 2021-06-30 2021-06-30 Procédé de connexion réseau, appareil et système WO2023272670A1 (fr)

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