WO2023272670A1 - 一种网络连接的方法、装置及*** - Google Patents

一种网络连接的方法、装置及*** 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)
French (fr)
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/zh
Publication of WO2023272670A1 publication Critical patent/WO2023272670A1/zh

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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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Abstract

本申请提供了一种网络连接的方法、装置及***，该方法应用于通信装置，通信装置包括第一通用用户识别模块USIM和第二USIM，该方法包括：从接入网设备接收网络标识，网络标识用于标识接入网设备支持的一个或多个网络；在第一USIM和第二USIM属于一个或多个网络的情况下，发送第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。实施本申请实施例，在多USIM终端设备中的多个USIM同时执行多个业务的收发时，可以降低终端设备的能耗，以及降低对基站的通信连接容量的冲击和基站拥塞。

Description

一种网络连接的方法、装置及*** 技术领域
本申请涉及通信技术领域，尤其涉及一种网络连接的方法、装置及***。
背景技术
随着通信技术的高速发展，手机等终端设备已成为人们日常生活和工作中进行交流通信的主要工具。其中，终端设备可以包括一个或多个通用用户识别模块(universal subscriber identifier module，USIM)，对包括多个USIM的终端设备可以称为多USIM终端设备。若终端设备的多个USIM均与同一基站进行通信，则该多个USIM会与基站建立多个通信连接，即多个USIM中的每个USIM均与基站建立一个通信连接。对于收发能力有限的多USIM终端设备，当多个USIM同时存在业务收发需求时，只有其中一个USIM能够执行业务的收发。也就是说，终端设备无法同时为每个USIM建立和维持一个通信连接，从而影响了用户体验。另外，对于收发能力较好的多USIM终端设备，即使可以同时为每个USIM建立和维持一个通信连接，但维持两个通信连接会消耗终端设备较多的电量，同时也会冲击基站的通信连接容量并导致基站拥塞。因此，当多USIM终端设备中的多个USIM同时执行多个业务的收发时，如何降低终端设备的能耗，以及降低对基站的通信连接容量的冲击和基站拥塞，成为当前阶段急需解决的技术问题。
发明内容
本申请实施例提供了一种网络连接的方法、装置及***，可以实现为收发能力有限的多USIM终端同时执行每个USIM业务的收发，降低了终端能耗，以及降低了对基站的通信连接容量的冲击和基站拥塞。
第一方面，提供一种网络连接的方法，该方法应用于通信装置，该通信装置可以为终端设备或终端设备中的芯片，通信装置包括第一通用用户识别模块USIM和第二USIM，该方法包括：从接入网设备接收网络标识，网络标识用于标识接入网设备支持的一个或多个网络；在第一USIM和第二USIM属于一个或多个网络的情况下，发送第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。
可以看出，上述技术方案中，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，使得终端设备在终端设备包括的第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，发送用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同的指示信息，从而实现了多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，该方法还包括：确定第一USIM和第二USIM属于一个或多个网络。
可选的，发送第一消息，包括：通过第一控制面连接发送第一消息。
可选的，第一消息中还包括第二路由标识，第二路由标识用于寻址第二移动性管理网元。
可以看出，上述技术方案中，终端设备通过第一控制面连接向接入网设备发送第二路 由标识，使得接入网设备可以根据第二路由标识为第二USIM选择对应的AMF网元或网络，以实现注册第二USIM。
可选的，发送第一消息，包括：向接入网设备发送第一消息，第一消息包括：第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，第二NAS请求消息用于请求注册第一USIM，第三NAS请求消息用于请求注册第二USIM，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元。
可以看出，上述技术方案中，终端设备向接入网设备发送第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，使得接入网设备可以根据路由标识向核心网设备发送NAS请求消息，从而可以注册USIM，进而可以实现在不同USIM均处于空闲态时让其可以同步进入连接态。
可选的，第一指示信息为第一USIM的标识和第二USIM的标识，发送第一消息，包括：向接入网设备发送第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识；第四NAS请求消息包括第一指示信息，第五NAS请求消息包括第一指示信息，第四NAS请求消息用于请求注册第一USIM，第五NAS请求消息用于请求注册第二USIM，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元。
可以看出，上述技术方案中，终端设备向接入网设备发送第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识，使得接入网设备可以根据路由标识向核心网设备发送NAS请求消息，从而可以注册USIM，进而可以实现在不同USIM均处于空闲态时让其可以同步进入连接态。同时，第一指示信息为第一USIM的标识和第二USIM的标识，使得核心网设备可以隐式的根据第一USIM的标识和第二USIM的标识授权接入网设备关联不同USIM的上下文信息，从而实现了多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
第二方面，提供一种网络连接的方法，该方法应用于接入网设备，该方法包括：向终端设备发送网络标识，网络标识用于标识接入网设备支持的一个或多个网络，终端设备包括第一USIM和第二USIM，第一USIM和第二USIM属于一个或多个网络；从终端设备接收第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。
可以看出，上述技术方案中，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，使得终端设备在终端设备包括的第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，发送用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同的指示信息，从而实现了多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，从终端设备接收第一消息，包括：通过第一控制面连接从终端设备接收第一消息。
可选的，该方法还包括：根据第一指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可以看出，上述技术方案中，接入网设备可以根据第一指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，从而实现了在无需核心网授权的情况下 使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，该方法还包括：第一消息中还包括第二路由标识，第二路由标识用于寻址第二移动性管理网元；根据第二路由标识向第二移动性管理网元发送第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的下一代应用协议NGAP标识，第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
可以看出，上述技术方案中，接入网设备可以通过第一控制面连接从终端设备接收第二路由标识，使得接入网设备可以根据第二路由标识向第二AMF网元发送第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识，从而可以让第二AMF网元根据第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识进行授权，实现了在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，该方法还包括：从第二移动性管理网元接收第二指示信息，第二指示信息用于指示第二移动性管理网元允许第二USIM与第一USIM共用同一控制面连接；根据从第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可以看出，上述技术方案中，接入网设备可以获取到来自第二AMF网元第二指示信息，使得接入网设备可以根据第二指示信息项将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，从而实现在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，第二指示信息为第一USIM的标识和/或第一USIM的NGAP标识。
可选的，该方法还包括：第一消息还包括：第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，第二NAS请求消息用于注册第一USIM，第三NAS请求消息用于注册第二USIM的，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元；根据第一路由标识向第一移动性管理网元发送第二NAS请求消息、第一指示信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识，第二USIM的NGAP标识是接入网设备为第二USIM分配的用于建立与第二移动性管理网元之间的NGAP信令连接的标识；根据第二路由标识向第二移动性管理网元发送第三NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识，第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
可以看出，上述技术方案中，接入网设备可以根据从终端设备获取的路由标识向AMF网元发送NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识，从而使得AMF网元可以进行授权。
可选的，该方法还包括：第一指示信息为第一USIM的标识和第二USIM的标识，第一消息还包括：第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识；第四NAS请求消息包括第一指示信息，第五NAS请求消息包括第一指示信息，第四NAS请求消息用于请求注册第一USIM，第五NAS请求消息用于请求注册第二USIM，第一路 由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元；根据第一路由标识向第一移动性管理网元发送第四NAS请求消息；根据第二路由标识向第二移动性管理网元发送第五NAS请求消息。
可以看出，上述技术方案中，接入网设备可以根据USIM的标识向AMF网元发送NAS请求消息，从而使得AMF网元可以进行授权。
可选的，该方法还包括：从第一移动性管理网元接收第三指示信息，第三指示信息用于指示第一移动性管理网元允许第一USIM与第二USIM共用同一控制面连接；从第二移动性管理网元接收第二指示信息，第二指示信息用于指示第二移动性管理网元允许第二USIM与第一USIM共用同一控制面连接；根据第三指示信息和第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可以看出，上述技术方案中，接入网设备可以从AMF网元获取到指示AMF网元允许共用同一控制面连接的指示信息，使得接入网设备可以根据获取到的指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，从而实现在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，该方法还包括：从终端设备接收第一凭证信息，第一凭证信息用于指示第一网络允许第一USIM与第二USIM共用同一控制面连接，第一USIM属于第一网络；根据第一凭证信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可以看出，上述技术方案中，接入网设备可以获取凭证信息，使得接入网设备可以根据凭证信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，从而实现在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
第三方面，提供一种网络连接的方法，该方法应用于移动性管理网元，该方法包括：接收第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同；根据第一指示信息和第二USIM的签约信息，向接入网设备发送第二指示信息，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同。
可以看出，上述技术方案中，AMF网元可以从接入网设备接收用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同的信息，使得AMF网元可以根据获取到的信息以及USIM的签约信息，向接入网设备发送允许第一控制面连接和第二控制面连接相同的信息，从而实现了AMF网元的授权，使得接入网设备可以根据AMF网元的授权让多个通用用户识别模块共用同一控制面连接。
可选的，第二USIM的签约信息用于指示允许第一USIM与第二USIM共用同一控制面连接。
可选的，根据第一指示信息和第二USIM的签约信息，向接入网设备发送第二指示信息，包括：根据第一指示信息和第二USIM的签约信息确定允许第一USIM与第二USIM共用同一控制面连接；向接入网设备发送第二指示信息。
可以看出，上述技术方案中，实现了移动性管理网元根据第一指示信息和第二USIM的签约信息确定允许第一USIM与第二USIM共用同一控制面连接，进而实现了AMF网 元的授权，使得接入网设备可以根据AMF网元的授权让多个通用用户识别模块共用同一控制面连接。
可选的，第二指示信息包括以下一项或多项：第一USIM的标识或第一USIM的NGAP标识；第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识，第一移动性管理网元为服务于第一USIM的移动性管理网元。
可选的，该方法还包括：根据第一指示信息和第二USIM的签约信息将第一USIM的标识和/或第一USIM的NGAP标识与第二USIM的第二上下文信息关联。
可选的，该方法还包括：向终端设备发送第二凭证信息，第二凭证信息用于指示第二网络允许第二USIM与第一USIM共用同一控制面连接，第二USIM属于第二网络。
可选的，该方法还包括：从终端设备接收第一凭证信息，第一凭证信息用于指示第一网络允许第一USIM与第二USIM共用同一控制面连接，第一USIM属于第一网络；将第一凭证信息与第二USIM的第二上下文信息关联。
第四方面，提供一种通信装置，该通信装置可以为终端设备或终端设备中的芯片，通信装置包括第一通用用户识别模块USIM和第二USIM，通信装置包括收发模块，收发模块，用于从接入网设备接收网络标识，网络标识用于标识接入网设备支持的一个或多个网络；在第一USIM和第二USIM属于一个或多个网络的情况下，发送第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。
可选的，通信装置还包括处理模块，处理模块，用于确定第一USIM和第二USIM属于一个或多个网络。
可选的，在发送第一消息时，收发模块，用于通过第一控制面连接发送第一消息。
可选的，第一消息中还包括第二路由标识，第二路由标识用于寻址第二移动性管理网元。
可选的，在发送第一消息时，收发模块，用于向接入网设备发送第一消息，第一消息包括：第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，第二NAS请求消息用于请求注册第一USIM，第三NAS请求消息用于请求注册第二USIM，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元。
可选的，第一指示信息为第一USIM的标识和第二USIM的标识，在发送第一消息时，收发模块，用于向接入网设备发送第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识；第四NAS请求消息包括第一指示信息，第五NAS请求消息包括第一指示信息，第四NAS请求消息用于请求注册第一USIM，第五NAS请求消息用于请求注册第二USIM，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元。
第五方面提供一种接入网设备，接入网设备包括收发模块，收发模块，用于向终端设备发送网络标识，网络标识用于标识接入网设备支持的一个或多个网络，终端设备包括第一USIM和第二USIM，第一USIM和第二USIM属于一个或多个网络；从终端设备接收第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。
可选的，在从终端设备接收第一消息时，收发模块，用于通过第一控制面连接从终端 设备接收第一消息。
可选的，接入网设备还包括处理模块，处理模块，用于根据第一指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可选的，第一消息中还包括第二路由标识，第二路由标识用于寻址第二移动性管理网元；收发模块，还用于根据第二路由标识向第二移动性管理网元发送第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的下一代应用协议NGAP标识，第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
可选的，收发模块，还用于从第二移动性管理网元接收第二指示信息，第二指示信息用于指示第二移动性管理网元允许第二USIM与第一USIM共用同一控制面连接；根据从第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可选的，第二指示信息为第一USIM的标识和/或第一USIM的NGAP标识。
可选的，第一消息还包括：第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，第二NAS请求消息用于注册第一USIM，第三NAS请求消息用于注册第二USIM的，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元；收发模块，还用于根据第一路由标识向第一移动性管理网元发送第二NAS请求消息、第一指示信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识，第二USIM的NGAP标识是接入网设备为第二USIM分配的用于建立与第二移动性管理网元之间的NGAP信令连接的标识；根据第二路由标识向第二移动性管理网元发送第三NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识，第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
可选的，第一指示信息为第一USIM的标识和第二USIM的标识，第一消息还包括：第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识；第四NAS请求消息包括第一指示信息，第五NAS请求消息包括第一指示信息，第四NAS请求消息用于请求注册第一USIM，第五NAS请求消息用于请求注册第二USIM，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元；收发模块，用于根据第一路由标识向第一移动性管理网元发送第四NAS请求消息；根据第二路由标识向第二移动性管理网元发送第五NAS请求消息。
可选的，接入网设备还包括处理模块，收发模块，还用于从第一移动性管理网元接收第三指示信息，第三指示信息用于指示第一移动性管理网元允许第一USIM与第二USIM共用同一控制面连接；从第二移动性管理网元接收第二指示信息，第二指示信息用于指示第二移动性管理网元允许第二USIM与第一USIM共用同一控制面连接；处理模块，用于根据第三指示信息和第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可选的，接入网设备还包括处理模块，收发模块，还用于从终端设备接收第一凭证信息，第一凭证信息用于指示第一网络允许第一USIM与第二USIM共用同一控制面连接，第一USIM属于第一网络；处理模块，用于根据第一凭证信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
第六方面，提供一种移动性管理网元，移动性管理网元包括收发模块，收发模块，用 于接收第一消息，第一消息包括第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同；根据第一指示信息和第二USIM的签约信息，向接入网设备发送第二指示信息，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同。
可选的，第二USIM的签约信息用于指示允许第一USIM与第二USIM共用同一控制面连接。
可选的，在根据第一指示信息和第二USIM的签约信息，向接入网设备发送第二指示信息时，收发模块，用于根据第一指示信息和第二USIM的签约信息确定允许第一USIM与第二USIM共用同一控制面连接；向接入网设备发送第二指示信息。
可选的，第二指示信息包括以下一项或多项：第一USIM的标识或第一USIM的NGAP标识；第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识，第一移动性管理网元为服务于第一USIM的移动性管理网元。
可选的，第二移动性管理网元还包括处理模块，处理模块，用于根据第一指示信息和第二USIM的签约信息将第一USIM的标识和/或第一USIM的NGAP标识与第二USIM的第二上下文信息关联。
可选的，收发模块，还用于向终端设备发送第二凭证信息，第二凭证信息用于指示第二网络允许第二USIM与第一USIM共用同一控制面连接，第二USIM属于第二网络。
可选的，第二移动性管理网元还包括处理模块，收发模块，还用于从终端设备接收第一凭证信息，第一凭证信息用于指示第一网络允许第一USIM与第二USIM共用同一控制面连接，第一USIM属于第一网络；处理模块，用于将第一凭证信息与第二USIM的第二上下文信息关联。
可选的，结合上述第一方面、第二方面、第三方面、第四方面、第五方面或第六方面，第一控制面连接和第二控制面连接为无线资源控制RRC连接。
可选的，结合上述第一方面、第二方面、第三方面、第四方面、第五方面或第六方面，第一消息用于建立第二控制面连接。
可选的，结合上述第一方面、第二方面、第三方面、第四方面、第五方面或第六方面，第一消息还用于建立第一控制面连接。
第七方面，提供一种通信装置，包括处理器、存储器、输入接口和输出接口，输入接口用于接收来自通信装置之外的其它通信装置的信息，输出接口用于向通信装置之外的其它通信装置输出信息，处理器调用存储器中存储的计算机程序实现如第一方面或第二方面或第三方面任意一项的方法。
在一种可能的设计中，该通信装置可以是实现第一方面、第二方面或第三方面中任意一项方法的芯片或者包含芯片的设备。
第八方面，一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序，当计算机程序被运行时，实现如第一方面或第二方面或第三方面任意一项的方法。
第九方面，提供一种通信***，包括以下一项或多项：上述接入网设备、上述第二AMF网元。可选的，该通信***还可以包括上述终端设备。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
其中：
图1为网络共建共享的示意图；
图2为本申请实施例提供的通信***的基础架构；
图3A为基于服务化架构的5G网络架构示意图；
图3B所示的5G网络架构中可包括数据网络(data network，DN)和运营商网络；
图4所示为可适用于本申请实施例提供的通信装置的硬件结构示意图；
图5为本申请实施例提供的一种网络连接方法的流程示意图；
图6用于描述在第一USIM处于连接态以及第二USIM处于空闲态的情况下，第二USIM请求建立与第二AMF网元之间的通信连接的场景；
图7为本申请实施例提供的又一种网络连接方法的流程示意图；
图8为本申请实施例提供的又一种网络连接方法的流程示意图；
图9A为本申请实施例提供的又一种网络连接方法的流程示意图；
图9B为本申请实施例提供的又一种网络连接方法的流程示意图；
图10为本申请实施例提供的一种通信装置的结构示意图；
图11为本申请实施例提供的一种通信***；
图12为本申请实施例提供的一种简化的终端设备的结构示意图；
图13为本申请实施例提供的一种简化的接入网设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
需要理解的是，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一种(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一种(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
在本申请实施例中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
下面对本申请所涉及到的名词(或通信术语)进行解释说明。
1.通用用户识别模块(universal subscriber Identification Module，USIM)
可以理解的，USIM可以包含各种形态的USIM，例如，可插拔的USIM卡，嵌入式USIM(Embedded-USIM，eUSIM)，或者eUICC(Embedded-UICC)，在此不做限制。
其中，USIM可以支持全球移动通信协会(global system for mobile communicationsassociations，GSMA)、远程SIM配置(remote SIM provisioning，RSP)通信协议等，在此不做限制。
2.无线资源控制(radio resource control，RRC)空闲态(RRC_IDLE)
当USIM处于RRC空闲态时，终端设备没有为USIM与接入网设备之间建立RRC连接，也没有保存对应的无线资源控制上下文(RRC context)。RRC上下文是终端设备为USIM与接入网设备之间建立RRC连接时获取的通信参数。RRC上下文可以包括以下信息中的一种或多种：接入层(Access stratum，AS)安全上下文、终端设备的无线能力信息、信令无线承载(signalling radio bearer，SRB)配置信息、数据无线承载(data radio bearer，DRB)配置信息等。同时，USIM也未与核心网设备建立通信连接，即核心网设备处于连接管理空闲态(Connection Management-Idle，CM-IDLE)。在该状态下，终端设备不能传送或接收数据，可以包括用户面业务数据和控制面信令等。当终端设备需要向网络发送上行数据时，或者收到来自网络的寻呼消息时，或者收到来自网络的下行业务通知消息时，请求接入网络以建立通信连接来发送或接收数据。
3.RRC连接态(RRC_CONNECTED)
当USIM处于RRC连接态时，终端设备已为USIM与接入网设备之间建立了RRC连接，并生成和保存了对应的RRC上下文。接入网设备为接入的USIM分配小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)。同时，USIM也与核心网设备建立了通信连接，即核心网设备处于连接管理连接态(Connection Management，CM_CONNECTED)。此时，终端设备可以传送和接收数据，可以包括用户面业务数据和控制面信令等。
上述内容简要阐述了本申请实施例所涉及的名词(通信术语)的含义，为更好地理解本申请实施例的提供的技术方案，并不构成对于本申请实施例提供的技术方案的限定。
下面，为了便于理解本申请，在此介绍本申请实施例涉及的相关技术知识。
目前，网络共建共享以及多USIM(multiple USIM，MUSIM)成为第五代移动通信技术(5th generation mobile networks，5G)的技术发展趋势之一。为了高效实现5G网络覆盖，快速形成5G服务能力，增强5G网络和服务的市场竞争力，提升网络效益和资产运营效率，达成双方的互利共赢，不同运营商之间进行了网络共建共享的合作方式。即共建5G接入网络，5G网络共建共享采用接入网多运营商核心网(multiple operator core network，MOCN)共享方式，核心网各自建设，5G基站和频率资源共享。具体的，参见图1，图1为网络共建共享的示意图。结合图1，可以看出，同一基站可以与不同运营商的核心网通信，例如图1中的共享基站(shared gNodeB)可以分别运营商A(Operator A)的核心网和运营商B(Operator B)的核心网通信，其中，运营商A的核心网为通用用户识别模块1提供服务，运营商B的核心网为通用用户识别模块2提供服务。例如，图1中的终端设备可以与同一基站建立两个通信连接。其中，终端设备包括的通用用户识别模块1与基站有 一个通信连接，终端设备包括的通用用户识别模块2与基站也有一个通信连接。即多个通用用户识别模块中的每个通用用户识别模块均与基站建立一个通信连接。对于收发能力有限的多USIM终端设备，当多个USIM同时存在业务收发需求时，只有其中一个USIM能够执行业务的收发，终端设备无法同时为每个USIM建立和维持一个通信连接，从而影响了用户体验。另外，对于收发能力较好的多USIM终端设备，即使可以同时为每个USIM建立和维持一个通信连接，但维持两个通信连接会消耗终端设备较多的电量，同时也会冲击基站的通信连接容量并导致基站拥塞。因此，当多USIM终端设备中的多个USIM同时执行多个业务的收发时，如何降低终端设备的能耗，以及降低对基站的通信连接容量的冲击和基站拥塞，成为当前阶段急需解决的技术问题。
基于此，本申请提供一种网络连接的方法，以解决上述技术问题，下面对本申请实施例进行详细介绍。
应理解，本申请实施例的技术方案可以应用于第五代移动通信技术(5th generation mobile networks，5G)等。本申请实施例的技术方案还可以应用于未来其它的通信***，例如6G通信***等，在未来通信***中，可能保持功能相同，但名称可能会改变。
下面介绍本申请实施例提供的通信***的基础架构。参见图2，图2为本申请实施例提供的通信***的基础架构。如图2所示，该通信***可以包括一个或多个接入网设备10(图2中仅示出了1个)以及与每一接入网设备10通信的一个或多个终端设备20。图2仅为示意图，并不构成对本申请提供的技术方案的适用场景的限定。
其中，接入网设备10为网络侧的一种用于发送信号，或者，接收信号，或者，发送信号和接收信号的实体。接入网设备10可以为部署在无线接入网(radio access network，RAN)中为终端设备20提供无线通信功能的装置，例如可以为传输接收点(transmission reception point，TRP)、基站、各种形式的控制节点。例如，网络控制器、无线控制器、云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器等。具体的，接入网设备可以为各种形式的宏基站，微基站(也称为小站)，中继站，接入点(access point，AP)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseBand unit，BBU)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心)等，也可以为基站的天线面板。控制节点可以连接多个基站，并为多个基站覆盖下的多个终端配置资源。在采用不同的无线接入技术的***中，具备基站功能的设备的名称可能会有所不同。例如，可以是5G中的gNB，或者5G之后的网络中的网络侧设备或未来演进的PLMN网络中的接入网设备等，本申请对接入网设备的具体名称不作限定。另外，接入网设备10还可以包括集成在gNB上的中心单元(central unit，CU)和分布单元(distributed unit，DU)。
其中，终端设备20是用户侧的一种用于接收信号，或者，发送信号，或者，接收信号和发送信号的实体。终端设备20用于向用户提供语音服务和数据连通***中的一种或多种。终端设备20可以为包含无线收发功能、且可以与接入网设备配合为用户提供通讯服务的设备。具体地，终端设备20可以指用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、终端、无线通信设 备、用户代理或用户装置。终端设备20也可以是无人机、物联网(internet of things，IoT)设备、WLAN中的站点(station，ST)、蜂窝电话(cellular phone)、智能电话(smart phone)、无绳电话、无线数据卡、平板型电脑、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)设备、膝上型电脑(laptop computer)、机器类型通信(machine type communication，MTC)终端、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备(也可以称为穿戴式智能设备)、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。终端设备20也可以是设备到设备(device to device，D2D)设备，例如，电表、水表等。终端设备20还可以为5G***中的终端，也可以为下一代通信***中的终端，本申请实施例对此不作限定。在本申请的实施例中，终端设备20可以包括一个或多个USIM。
结合图2，该通信***还可以包括第一移动性管理网元30和第二移动性管理网元40。第一移动性管理网元30为服务于第一USIM的移动性管理网元，第二移动性管理网元40为服务于第二USIM的移动性管理网元。第一移动性管理网元30和第二移动性管理网元40可以与接入网设备10、终端设备20通信。
其中，第一移动性管理网元30或第二AMF移动性管理40具有以下一种或多种功能：用于移动网络中的终端设备的注册、安全认证和密钥协商，非接入层(Non-Access Stratum，NAS)连接的维护，移动性管理，路由终端设备和其它网元之间的信令。例如路由终端设备和会话管理网元(session management function，SMF)之间的会话管理(session management，SM)消息。在5G通信中，Namf是第一移动性管理网元30和第二移动性管理网元40提供的基于服务的接口，第一移动性管理网元30和第二移动性管理网元40可以通过Namf与其他的网络功能通信。可以理解的，本申请对第一移动性管理网元30和第二移动性管理网元40的名称，不作限定。如第一移动性管理网元30，可以称为第一AMF网元，第二移动性管理网元40，可以称为第二AMF网元。
需要说明的，在本申请中，第一移动性管理网元30和第二移动性管理网元40可以为同一设备，或，不同的设备，在此不做限制。可选的，若第一移动性管理网元和第二移动性管理网元为同一设备，则第一网络和第二网络相同。其中，第一USIM属于第一网络，第二USIM属于第二网络。
结合图2，该通信***还可以包括第一数据管理网元50和第二数据管理网元60，第一移动性管理网元30可以与第一数据管理网元50通信，第二移动性管理网元40可以与第二数据管理网元60通信。
其中，第一数据管理网元50或第二数据管理网元60可以包括以下一项或多项功能：用于处理用户标识、接入鉴权或注册等。在5G通信***中，N数据管理是第一数据管理网元50和第二数据管理网元60提供的基于服务的接口，第一数据管理网元50和第二数据管理网元60可以通过N数据管理与其他的网络功能通信。可以理解的，本申请对第一数据管理网元50和第二数据管理网元60的名称，不作限定。如第一数据管理网元50，可以称为第一UDM网元，第二数据管理网元60，可以称为第二UDM网元。
需要说明的，在本申请中，第一数据管理网元50和第二数据管理网元60可以为同一设备，或，不同的设备，在此不做限制。
该通信***还可以包括第一鉴权服务器网元70和第二鉴权服务器网元80。第一移动性管理网元30可以与第一鉴权服务器网元70进行通信，第二移动性管理网元40可以与第二鉴权服务器网元80进行通信。
其中，第一鉴权服务器网元70和第二鉴权服务器网元80均是3GPP网络中的一种控制面网元，第一鉴权服务器网元70和第二鉴权服务器网元80主要用于第一级认证(即3GPP网络对其签约用户的认证)。
需要说明的，在本申请中，第一鉴权服务器网元70和第二鉴权服务器网元80可以为同一设备，或，不同的设备，在此不做限制。
下面以5G通信***为例，以与单个USIM通信的网络的角度，或者以两个USIM属于同一个通信网络的角度(即第一移动性管理网元30和第二移动性管理网元40为同一设备，第一数据管理网元50和第二数据管理网元60为同一设备，第一鉴权服务器网元70和第二鉴权服务器网元80为同一设备)，说明本申请实施例适用的一种具体可能的网络架构示意图。图3A为基于服务化架构的5G网络架构示意图。图3B所示的5G网络架构中可包括数据网络(data network，DN)和运营商网络。下面对其中的部分网元的功能进行简单介绍说明。
其中，运营商网络可包括以下网元中的一个或多个：鉴权服务器功能(Authentication Server Function，AUSF)网元、网络开放功能(network exposure function，NEF)网元、策略控制功能(policy control function，PCF)网元、统一数据管理(unified data management，UDM)网元、统一数据库(Unified Data Repository，UDR)、网络存储功能(Network Repository Function，NRF)网元、应用功能(application function，AF)网元、接入与移动性管理功能(access and mobility management function，AMF)网元、会话管理功能(session management function，SMF)网元、无线接入网(radio access network，RAN)设备以及用户面功能(user plane function，UPF)网元、网络切片选择功能(Network Slice Selection Function，NSSF)网元(图中未示出)等。上述运营商网络中，除无线接入网设备之外的网元或设备可以称为核心网网元或核心网设备。
无线接入网设备可以是基站(base station)、演进型基站(evolved NodeB，eNodeB)、发送接收点(transmission reception point，TRP)、5G移动通信***中的下一代基站(next generation NodeB，gNB)、6G移动通信***中的下一代基站、未来移动通信***中的基站或无线保真(wireless fidelity，WiFi)***中的接入节点等；也可以是完成基站部分功能的模块或单元，例如，可以是集中式单元(central unit，CU)，也可以是分布式单元(distributed unit，DU)。无线接入网设备可以是宏基站，也可以是微基站或室内站，还可以是中继节点或施主节点等。本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。
与RAN通信的终端也可以称为终端设备、用户设备(user equipment，UE)、移动台、移动终端等。终端可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything，V2X)通信、机器类通信(machine-type communication，MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、 平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端所采用的具体技术和具体设备形态不做限定。
基站和终端可以是固定位置的，也可以是可移动的。基站和终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对基站和终端的应用场景不做限定。
AMF网元，执行移动性管理、接入鉴权/授权等功能。此外，还负责在终端与PCF间传递用户策略。
SMF网元，执行会话管理、PCF下发控制策略的执行、UPF的选择、终端的互联网协议(internet protocol，IP)地址分配等功能。
UPF网元，作为和数据网络的接口UPF，完成用户面数据转发、基于会话/流级的计费统计，带宽限制等功能。
UDM网元，执行管理签约数据、用户接入授权等功能。
UDR，执行签约数据、策略数据、应用数据等类型数据的存取功能。
NEF网元，用于支持能力和事件的开放。
AF网元，传递应用侧对网络侧的需求，例如，QoS需求或用户状态事件订阅等。AF可以是第三方功能实体，也可以是运营商部署的应用服务，如IP多媒体子***(IP Multimedia Subsystem，IMS)语音呼叫业务。
PCF网元，负责针对会话、业务流级别进行计费、QoS带宽保障及移动性管理、终端策略决策等策略控制功能。
NRF网元，可用于提供网元发现功能，基于其他网元的请求，提供网元类型对应的网元信息。NRF还提供网元管理服务，如网元注册、更新、去注册以及网元状态订阅和推送等。
AUSF网元，负责对用户进行鉴权，以确定是否允许用户或设备接入网络。
NSSF网元，用于选择网络切片，对网络切片内的用户进行计数等。
DN，是位于运营商网络之外的网络，运营商网络可以接入多个DN，DN上可部署多种业务，可为终端提供数据和/或语音等服务。例如，DN是某智能工厂的私有网络，智能工厂安装在车间的传感器可为终端，DN中部署了传感器的控制服务器，控制服务器可为传感器提供服务。传感器可与控制服务器通信，获取控制服务器的指令，根据指令将采集的传感器数据传送给控制服务器等。又例如，DN是某公司的内部办公网络，该公司员工的手机或者电脑可为终端，员工的手机或者电脑可以访问公司内部办公网络上的信息、数据资源等。
图3A中Nausf、Nnef、Npcf、Nudm、Naf、Namf、Nsmf分别为上述AUSF、NEF、PCF、UDM、AF、AMF和SMF提供的服务化接口，用于调用相应的服务化操作。N1、N2、N3、N4，以及N6为接口序列号。这些接口序列号的含义可参见第三代合作伙伴计划(3rd generation partnership project，3GPP)标准协议中定义的含义，在此不做限制。
图3B为基于点对点接口的5G网络架构示意图，其中的网元的功能的介绍可以参考图3A中对应的网元的功能的介绍，不再赘述。图3B与图3A的主要区别在于：图3A中的各个控制面网元之间的接口是服务化的接口，图3B中的各个控制面网元之间的接口是点 对点的接口。
在图3B所示的架构中，各个网元之间的接口名称及功能如下：
1)、N1：AMF与终端之间的接口，可以用于向终端传递QoS控制规则等。
2)、N2：AMF与RAN之间的接口，可以用于传递核心网侧至RAN的无线承载控制信息等。
3)、N3：RAN与UPF之间的接口，主要用于传递RAN与UPF间的上下行用户面数据。
4)、N4：SMF与UPF之间的接口，可以用于控制面与用户面之间传递信息，包括控制面向用户面的转发规则、QoS控制规则、流量统计规则等的下发以及用户面的信息上报。
5)、N5：AF与PCF之间的接口，可以用于应用业务请求下发以及网络事件上报。
6)、N6：UPF与DN的接口，用于传递UPF与DN之间的上下行用户数据流。
7)、N7：PCF与SMF之间的接口，可以用于下发协议数据单元(protocol data unit，PDU)会话粒度以及业务数据流粒度控制策略。
8)、N8：AMF与UDM间的接口，可以用于AMF向UDM获取接入与移动性管理相关签约数据与鉴权数据，以及AMF向UDM注册终端当前移动性管理相关信息等。
9)、N9：UPF和UPF之间的用户面接口，用于传递UPF间的上下行用户数据流。
10)、N10：SMF与UDM间的接口，可以用于SMF向UDM获取会话管理相关签约数据，以及SMF向UDM注册终端当前会话相关信息等。
11)、N11：SMF与AMF之间的接口，可以用于传递RAN和UPF之间的PDU会话隧道信息、传递发送给终端的控制消息、传递发送给RAN的无线资源控制信息等。
12)、N12：AMF和AUSF间的接口，可以用于AMF向AUSF发起鉴权流程，其中可携带SUCI作为签约标识；
13)、N13：UDM与AUSF间的接口，可以用于AUSF向UDM获取用户鉴权向量，以执行鉴权流程。
14)、N15：PCF与AMF之间的接口，可以用于下发终端策略及接入控制相关策略。
15)、N35：UDM与UDR间的接口，可以用于UDM从UDR中获取用户签约数据信息。
16)、N36：PCF与UDR间的接口，可以用于PCF从UDR中获取策略相关签约数据以及应用数据相关信息。
可以理解的是，上述网元或者功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。可选的，上述网元或者功能可以由一个设备实现，也可以由多个设备共同实现，还可以是一个设备内的一个功能模块，本申请实施例对此不作具体限定。
本申请中的会话管理网元、用户面网元、策略控制网元分别可以是图3A或图3B中的SMF、UPF、PCF，也可以是未来通信如6G网络中具有上述SMF、UPF、PCF的功能的网元，本申请对此不限定。在本申请的实施例中，以SMF、UPF、PCF分别作为会话管理网元、用户面网元、策略控制网元的一个举例进行描述。
可以理解的是，上述网元或者功能既可以是硬件设备中的网络元件，也可以是在专用 硬件上运行软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。上述网元或者功能可划分出一个或多个服务，进一步，还可能会出现独立于网络功能存在的服务。在本申请中，上述功能的实例、或上述功能中包括的服务的实例、或独立于网络功能存在的服务实例均可称为服务实例。
此外，本申请实施例提供的技术方案可适用于多种***架构。本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
可选的，图2中的各网元(例如接入网设备10、终端设备20、第一移动性管理网元30、第二移动性管理网元40、第一数据管理网元50、第二数据管理网元60、第一鉴权服务器网元70和第二鉴权服务器网元80等)可以由一个设备实现，也可以由多个设备共同实现，还可以是一个设备内的一个功能模块，本申请实施例对此不作具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，图2中的各设备均可以通过图4中的通信装置400来实现。图4所示为可适用于本申请实施例提供的通信装置的硬件结构示意图。该通信装置400包括至少一个处理器401，通信线路402以及至少一个通信接口404。
处理器401可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路402可包括一通路，在上述组件之间传送信息。
通信接口404，是任何收发器一类的装置(如天线等)，用于与其他设备或通信网络通信，如以太网，RAN，无线局域网(wireless local area networks，WLAN)等。
可选的，通信装置400还包括存储器403，存储器403可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路402与处理器相连接。存储器也可以和处理器集成在一起。本申请实施例提供的存储器通常可以具有非易失性。其中，存储器403用于存储执行本申请方案的计算机执行指令，并由处理器401来控制执行。处理器401用于执行存储器403中存储的计算机执行指令，从而实现本申请下述实施例提供的方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在一种可能的实施方式中，处理器401可以包括一个或多个CPU，例如图4中的CPU0和CPU1。
在一种可能的实施方式中，通信装置400可以包括多个处理器，例如图4中的处理器 401和处理器407。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在一种可能的实施方式中，通信装置400还可以包括输出设备405和输入设备406。输出设备405和处理器401通信，可以以多种方式来显示信息。例如，输出设备405可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备406和处理器401通信，可以以多种方式接收用户的输入。例如，输入设备406可以是鼠标、键盘、触摸屏设备或传感设备等。
上述的通信装置400可以是一个通用设备或者是一个专用设备。在具体实现中，通信装置400可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备或有图4中类似结构的设备。本申请实施例不限定通信装置400的类型。
以下结合附图，说明本申请实施例提供的技术方案。
参见图5，图5为本申请实施例提供的一种网络连接方法的流程示意图。例如，图5中的接入网设备为图2中的接入网设备10，图5中的终端设备为图2中的终端设备20，本申请实施例以终端设备包括两个USIM为例说明，但是不限于两个，还可以包括三个及以上的USIM。如图5所示，该方法包括但不限于以下步骤：
501.接入网设备向终端设备发送网络标识，该网络标识用于标识接入网设备支持或连接的一个或多个网络。其中，终端设备包括第一USIM和第二USIM。
相应的，终端设备从接入网设备接收该网络标识。
例如，网络标识可以为公共陆地移动(通信)网络(public land mobile network，PLMN)标识。可以理解的，在本申请中，网络标识可以为一个或多个网络标识，每个网络标识用于标识接入网设备支持的一个网络。
需要说明的，在本申请中，网络可以理解为运营商网络，即，一个网络标识可以用于标识接入网设备支持的一个运营商网络。示例性的，PLMN标识1用于标识接入网设备支持的***的网络，PLMN标识2用于标识接入网设备支持的***的网络，PLMN标识3用于标识接入网设备支持的中国电信的网络。
可选的，步骤501可以包括：接入网设备向终端设备发送网络列表(PLMN list)，网络列表可以包括一个或多个网络标识。
作为一种可选的实现方式，接入网设备通过***信息广播(system information broadcast，SIB)消息向终端设备发送网络列表(PLMN list)。
在步骤501之后，本方案还包括：终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，发送第一指示信息。其中，终端设备发送第一指示信息包括：终端设备向接入网设备发送第一指示信息；或者，终端设备向第二AMF网元发送第一指示信息。
该方案可以通过以下两种方式中的任一种实现：方式一、包括步骤502；方式二、包括步骤503和504。可以理解的，在方式一和方式二中的第一指示信息可以通过第一消息发送。
可选的，第一消息用于建立第二控制面连接。
可选的，第一消息还用于建立第一控制面连接。
其中，第一消息例如可以为第一RRC消息或其他消息，在此不做限定。第一RRC消息例如可以为上行信息传输(UL information transfer)或RRC建立请求消息，在此不做限制。
方式一
502.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向接入网设备发送第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。相应的，接入网设备从终端设备接收第一指示信息。
其中，第一USIM和第二USIM属于接入网设备支持的一个或多个网络，可以理解为：步骤501中的网络标识包括第一USIM对应的网络的标识和第二USIM对应的网络的标识。例如，第一USIM对应的网络为网络1，网络1的标识为PLMN标识1；第二USIM对应的网络为网络2，网络2的标识为PLMN标识2；步骤501中用于标识接入网设备支持的一个或多个网络的网络标识包括PLMN标识1和PLMN标识2。
可选的，该方法还包括：终端设备确定第一USIM和第二USIM属于该接入网设备支持的一个或多个网络。
在一种可能的实施方式中，方式一中的第一指示信息可以为第一USIM的标识；或，方式一中的第一指示信息可以为第一USIM的标识和第二USIM的标识；或，第一指示信息不为第一USIM的标识且不为第一USIM的标识和第二USIM的标识。其中，第一指示信息不为第一USIM的标识且不为第一USIM的标识和第二USIM的标识，可以理解为：第一指示信息为指示位，该指示位跟第一USIM的标识和第二USIM的标识无关。
例如，第一USIM的标识包括以下一项或多项：第一***架构演进临时移动用户标识(system architecture evolution，SAE，temporary mobile station identifier，S-TMSI)、第一全局唯一的临时标识(globally unique temporary identity，GUTI)、第一用户永久标识(subscription permanent identifier，SUPI)、或第一接入网临时标识(Radio Network Temporary Identifier，RNTI)等，在此不做限制。第二USIM的标识可以包括以下一项或多项：第二S-TMSI、第二GUTI、第二SUPI、或第二RNTI等，在此不做限制。
第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同，可以包括以下三种情况下的任一种情况：
(1)第一USIM和接入网设备之间的RRC层与第二USIM和接入网设备之间的RRC层相同，第一USIM和接入网设备之间的分组数据汇聚协议(packet data convergence protocol，PDCP)层与第二USIM和接入网设备之间的PDCP层相同，第一USIM和接入网设备之间的无线链路控制(radio link control，RLC)层与第二USIM和接入网设备之间的RLC层相同，第一USIM和接入网设备之间的媒体接入控制(media access control，MAC)层与第二USIM和接入网设备之间的MAC层相同，且第一USIM和接入网设备之间的物理层(PHY，Physical)与第二USIM和接入网设备之间的PHY层相同；
(2)第一USIM和接入网设备之间的RLC层与第二USIM和接入网设备之间的RLC层相同，第一USIM和接入网设备之间的MAC层与第二USIM和接入网设备之间的MAC层相同，且第一USIM和接入网设备之间的PHY与第二USIM和接入网设备之间的PHY 相同；
(3)第一USIM和接入网设备之间的MAC层与第二USIM和接入网设备之间的MAC层相同，且第一USIM和接入网设备之间的PHY与第二USIM和接入网设备之间的PHY相同。
可选的，第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同，可以理解为：第一USIM和第二USIM共用同一控制面连接，或，第一USIM和接入网设备之间的RRC连接与第二USIM和接入网设备之间的RRC连接相同，或，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。其中，在本申请中，第一USIM的第一上下文信息为接入网设备中的第一USIM的上下文信息；第二USIM的第一上下文信息为接入网设备中的第二USIM的上下文信息。
其中，第一USIM的第一上下文信息可以包括以下一项或多项：第一USIM的标识、第一USIM的下一代应用协议(next generation application protocol，NGAP)标识、第一接入层(Access stratum，AS)安全上下文、终端设备的第一无线能力信息、信令无线承载(signalling radio bearer，SRB)的第一配置信息、数据无线承载(data radio bearer，DRB)的第一配置信息。其中，第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一AMF网元之间的NGAP信令连接的标识。
其中，第二USIM的第一上下文信息可以包括以下一项或多项：第二USIM的标识、第二USIM的NGAP标识、第二AS安全上下文、终端设备的第二无线能力信息、SRB的第二配置信息、DRB的第二配置信息。其中，第二USIM的NGAP标识是接入网设备为第二USIM分配的用于建立与第二AMF网元之间的NGAP信令连接的标识。
可选的，第一AS安全上下文和第二AS安全上下文相同。可选的，终端设备的第一无线能力信息和终端设备的第二无线能力信息相同。可选的，SRB的第一配置信息和SRB的第二配置信息相同。可选的，DRB的第一配置信息和DRB的第二配置信息相同。
方式二
503.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向第二AMF网元发送第一指示信息，第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同。相应的，第二AMF网元从终端设备接收第一指示信息。
其中，关于第一USIM和第二USIM属于接入网设备支持的一个或多个网络的描述，以及对第一指示信息的描述，可以参考步骤502的方式一中相关描述，在此不加赘述。
可选的，在本申请中，终端设备可以通过接入网设备向第二AMF网元发送第一指示信息，相应的，第二AMF网元可以通过接入网设备从终端设备接收第一指示信息。
可选的，步骤503还包括：终端设备向接入网设备发送第二路由标识。接入网设备根据第二路由标识向第二AMF网元发送第一指示信息。其中，第二路由标识用于寻址第二AMF网元，第二路由标识可以包括以下一项或多项：第二网络的标识、第二USIM的标识或第二AMF网元的标识。其中，第二USIM的标识可以用于指示第二AMF网元或第二网络，第二USIM属于第二网络。第二网络的标识可以为第二PLMN标识。第二PLMN标识可以用于标识接入网设备支持的运营商网络。
其中，若第二路由标识包括第二USIM的标识，第二USIM的标识为第二GUTI，那么，第二GUTI的高位比特可以包括第二网络的标识或全球唯一的第二AMF网元的标识， 第二GUTI的全部比特可以为全球唯一的第二USIM的标识；若第二路由标识包括第二网络的标识和第二USIM的标识，第二USIM的标识为第二S-TMSI，那么，第二S-TMSI的高位比特可以为第二网络内唯一的第二AMF网元的标识，第二S-TMSI的全部比特可以为第二网络内唯一的第二USIM的标识。
可选的，第二路由标识可以通过第一消息发送给接入网设备。
可选的，第一指示信息和第二路由标识可以携带在同一RRC消息发送给接入网设备。
504.第二AMF网元向接入网设备发送第二指示信息，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同。相应的，接入网设备从第二AMF网元接收第二指示信息。
例如，第二AMF网元根据第一指示信息和第二USIM的签约信息确定第二指示信息。
可选的，第二USIM的签约信息用于指示以下一项或多项：允许第一USIM与第二USIM共用同一控制面连接，或，允许第二USIM与除第二USIM之外的USIM共用同一控制面连接，或，允许第二USIM与属于第二网络的除第二USIM之外的USIM共用同一控制面连接，或，允许与第二USIM共用同一控制面连接的USIM的标识。其中，允许与第二USIM共用同一控制面连接的USIM的标识例如可以包括第一USIM的标识或其他标识，在此不做限制。
可选的，第二USIM的签约信息根据第二USIM的标识获取。如第二USIM的签约信息根据第二USIM的标识从第二UDM网元或第二AMF网元获取。
可选的，第二指示信息可以包括第一USIM的标识和/或第一USIM的NGAP标识。或者，第二指示信息可以包括第一USIM的标识和第二USIM的标识。
可选的，第二指示信息可以包括第二凭证信息，或，第二指示信息可以包括第一凭证信息和第二凭证信息。
例如，第一凭证信息包括根据第一网络的证书对应的私钥生成的签名。第一凭证信息为第一AMF网元或第一UDM网元或第一AUSF网元根据第一网络的证书对应的私钥，对第一USIM的标识进行计算得到的签名。若第一凭证信息为第一UDM网元或第一AUSF网元根据第一网络的证书对应的私钥，对第一USIM的标识进行计算得到的签名，则第一UDM网元或第一AUSF网元可以向第一AMF网元发送第一凭证信息，第一AMF网元可以向终端设备或接入网设备发送第一凭证信息。示例性的，第一凭证信息可以为token1。
例如，第二凭证信息包括根据第二网络的证书对应的私钥生成的签名，第二凭证信息为第二AMF网元或第二UDM网元或第二AUSF网元根据第二网络的证书对应的私钥，对第二USIM的标识进行计算得到的签名。若第二凭证信息为第二UDM网元或第二AUSF网元根据第二网络的证书对应的私钥，对第二USIM的标识进行计算得到的签名，则第二UDM网元或第二AUSF网元可以向第二AMF网元发送第二凭证信息，第二AMF网元可以向终端设备或接入网设备发送第二凭证信息。示例性的，第二凭证信息可以为token2。
可选的，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同，包括以下一种或多种情况：第二指示信息用于第二AMF网元允许第二USIM与除第二USIM之外的USIM共用同一控制面连接；或，第二指示信息用于第二AMF网元允许第一USIM与第二USIM共用同一控制面连接；或，第二指示信息用于第二AMF网元允许将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，在此不做限制。其中，第一USIM的第一上下文信息、第二USIM的第一上下文信息可以参考方式一中相关描述，在此不加 赘述。
可选的，步骤504，可以包括：第二AMF网元根据第一指示信息和第二USIM的签约信息确定允许第一USIM与第二USIM共用同一控制面连接；第二AMF网元向接入网设备发送所述第二指示信息。
基于上述技术方案，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，在终端设备包括的第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，终端设备发送用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同的指示信息，从而实现了多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。
可选的，上述方案还包括步骤505。
505.接入网设备将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
对于上述方式一，步骤505在步骤502之后执行。接入网设备从终端设备接收第一指示信息之后，步骤505，可以包括：接入网设备可以根据第一指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
对于上述方式二，步骤505在步骤504之后执行。接入网设备从第二AMF网元接收第二指示信息之后，步骤505，可以包括：接入网设备可以根据第二指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
基于上述技术方案，接入网设备将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，即使得第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同，从而实现了多个通用用户识别模块与接入网设备建立同一控制面连接。
可选的，在步骤505中，接入网设备还可以结合第一凭证信息和/或第二凭证信息来实现第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，其中，关于第一凭证信息、第二凭证信息可以参考步骤504中相关描述，在此不加赘述。
对于上述方式一，接入网设备可以根据第一指示信息以及以下一项或多项：第一凭证信息或第二凭证信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。例如，接入网设备从终端设备接收第一凭证信息和/或第二凭证信息。
对于上述方式二，接入网设备可以根据第二指示信息以及以下一项或多项：第一凭证信息或第二凭证信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。例如，若第二指示信息不包括第一凭证信息，接入网设备从第一AMF网元或者第二AMF网元接收第一凭证信息。若第二指示信息不包括第一凭证信息和第二凭证信息。若第二指示信息不包括第二凭证信息，接入网设备从第二AMF网元接收第二凭证信息。基于上述技术方案，接入网设备可以结合第一凭证信息和/或第二凭证信息来实现第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，提高了关联不同USIM的第一上下文信息时的安全性。
[根据细则91更正 05.07.2021]　
示例性的，下面结合图6-图9B，说明在注册USIM应用场景下本申请涉及的方案。
具体的，参见图6，图6用于描述在第一USIM处于连接态以及第二USIM处于空闲 态的情况下，第二USIM请求建立与第二AMF网元之间的通信连接的场景。其中，图6中的接入网设备为图2中的接入网设备10，图6中的终端设备为图2中的终端设备20，图6中的第二AMF网元为图2中的第二AMF网元40。如图6所示，该方法包括但不限于以下步骤：
601.接入网设备向终端设备发送网络标识，该网络标识用于标识接入网设备支持的一个或多个网络。其中，终端设备包括第一USIM和第二USIM。
其中，步骤601可参考图5中步骤501的描述，在此不加赘述。
602.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，通过第一控制面连接向接入网设备发送第一指示信息、第二路由标识和NAS请求消息，NAS请求消息包括第二USIM的标识，NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第一指示信息、第二路由标识和NAS请求消息，NAS请求消息包括第二USIM的标识。
其中，图6中的第一指示信息可以参考图5步骤502和步骤503中涉及到的第一指示信息，在此不加赘述。
其中，第二路由标识可以参考图5步骤503中涉及到的第二路由标识，在此不加赘述。
可选的，在本申请中，NAS请求消息可以为注册请求消息或服务请求消息，在此不做限制。
可选的，步骤602中的第一指示信息、第二路由标识和NAS请求消息可以携带在同一RRC消息发送给接入网设备。
603.接入网设备根据第二路由标识向第二AMF网元发送NAS请求消息。相应的，第二AMF网元从接入网设备接收NAS请求消息。
可选的，步骤603中的NAS请求消息可以携带在第二USIM的N2消息发送给第二AMF网元。其中，第二USIM的N2消息例如可以为初始UE消息或其他消息，在此不做限制。
604.第二AMF网元根据第二USIM的标识获取第二USIM的签约信息。
其中，步骤604可以理解为：第二AMF网元根据第二USIM的标识从第二UDM网元获取第二USIM的签约信息。
其中，关于第二USIM的签约信息，可以参考图5步骤504相关描述，在此不加赘述。
605.第二AMF网元根据第二USIM的签约信息向接入网设备发送请求消息，请求消息用于请求建立第二AMF网元与接入网设备之间的第二USIM的N2信令连接。相应的，接入网设备从第二AMF网元接收请求消息。
可选的，步骤605中的请求消息例如可以为初始上下文建立请求消息或其他消息，在此不做限制。
可选的，步骤605中的请求消息还可以包括步骤608中的NAS响应消息，在这种情况下，步骤608不执行。
606.接入网设备向第二AMF网元发送请求消息的响应消息，请求消息的响应消息用于指示第二AMF网元与接入网设备之间的第二USIM的N2信令连接建立成功。相应的，第二AMF网元从接入网设备接收请求消息的响应消息。
可选的，步骤608中的请求消息的响应消息例如可以为初始上下文建立请求消息的响应消息或其他消息，在此不做限制。
607.接入网设备根据第一指示信息将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
其中，关于步骤607，可以参考对于图5中方式一步骤505的相关描述，在此不加赘述。
需要说明的，本申请实施例中的步骤607与步骤603-606之间没有必然的执行先后顺序。换句话说，步骤607可以在步骤603-606的任意步骤之前执行，也可以在步骤603-606的任意步骤之后执行，也可以与步骤603-606的任意步骤同时执行。
可选的，在步骤607之后，接入网设备还可以将第一USIM的数据面、协议数据单元(protocol data unit，PDU)会话、服务质量(quality ofservice，QoS)流映射到第一数据无线承载(data radio bearer，DRB)上，接入网设备还可以将第二USIM的数据面、PDU会话、QoS流映射到第一DRB上；或，接入网设备可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备将第二USIM的数据面、PDU会话、QoS流映射到第二DRB上，在此不做限制。
其中，第一DRB与第二DRB均是终端设备和接入网设备之间通过第一控制面连接建立的DRB，第一DRB和第二DRB不同。
608.第二AMF网元向终端设备发送NAS响应消息，NAS响应消息用于指示第二USIM的注册已完成。相应的，终端设备从第二AMF网元接收NAS响应消息。
可选的，在本申请中，NAS响应消息可以为注册接受消息或服务接受消息，在此不做限制。可以理解的，若NAS请求消息为注册请求消息，则NAS响应消息为注册接受消息；若NAS请求消息为服务请求消息，则NAS响应消息为服务接受消息。
其中，步骤608，可以包括：第二AMF网元通过接入网设备向终端设备发送NAS响应消息。
基于上述技术方案，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，在终端设备包括的第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，终端设备发送用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同的指示信息，实现了在无需核心网授权的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。另外，终端设备还可以向接入网设备发送第二路由标识和NAS请求消息，使得接入网设备可以根据第二路由标识向第二AMF网元发送NAS请求消息，从而实现了注册第二USIM。
可以理解的，在步骤608之后，即在第二USIM完成注册之后，当第一USIM、第二USIM与其对应的AMF网元交互时，可以在交互的消息中携带第四指示信息，第四指示信息用于指示接收该消息的AMF网元或USIM。
示例性的，当第一USIM与第一AMF网元涉及到上行和/或下行数据传输时，可以携带第四指示信息，第四指示信息例如可以为第一网络的标识、第一USIM的标识、第一AMF网元的标识等；当第二USIM与第二AMF网元涉及到上行和或下行数据传输时，第四指示信息例如可以为第二网络的标识、第二USIM的标识、第二AMF网元的标识等。可选的，该数据可以是NAS消息。
又示例性的，当第一USIM与第一AMF网元涉及到上行和/或下行数据传输时，或当第二USIM与第二AMF网元涉及到上行和/或下行数据传输时，可以携带第四指示信息， 第四指示信息可以为指示位，例如，指示位为1比特位，“0”代表上行和/或下行数据属于第一USIM，“1”代表上行和/或下行数据属于第二USIM。进一步地，对于第一USIM发给第一AMF的数据，携带的指示位置位“0”，则RAN将该数据发给第一AMF，对于第二USIM发给第二AMF的数据，携带的指示位置位“1”，则RAN将该数据发给第二AMF；类似的，可选的，对于第一AMF发给第一USIM的数据，携带的指示位置位“0”，则RAN将该数据发给第一USIM，对于第二AMF发给第二USIM的数据，携带的指示位置位“1”，则RAN将该数据发给第二USIM。可选的，该数据可以是NAS消息。
参见图7，图7为本申请实施例提供的又一种场景下的方案：第一USIM处于连接态以及第二USIM处于空闲态，第二USIM请求建立与第二AMF网元之间的通信连接时需要经过核心网的授权。其中，图7中的接入网设备为图2中的接入网设备10，图7中的终端设备为图2中的终端设备20，图7中的第二AMF网元为图2中的第二AMF网元40。如图7所示，该方法包括但不限于以下步骤：
701.接入网设备向终端设备发送网络标识，该网络标识用于标识接入网设备支持的一个或多个网络。其中，终端设备包括第一USIM和第二USIM。
其中，步骤701可参考图5中步骤501的描述，在此不加赘述。
在步骤701之后，本方案还包括：终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向第二AMF网元发送第一指示信息。例如，终端设备通过接入网设备向第二AMF网元发送第一指示信息。具体的实现包括：终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，通过第一控制面连接向接入网设备发送第二路由标识和第一NAS请求消息，第一NAS请求消息用于请求注册第二USIM。第一NAS请求消息可以为注册接受消息或服务接受消息，在此不做限制。
可选的，终端设备还可以通过第一控制面连接向接入网设备发送第一指示信息，第一指示信息可以包含或不包含在第一NAS请求消息中，在此不做限制。第一指示信息可以参考图5步骤502和步骤503中涉及到的第一指示信息，在此不加赘述。
可选的，在以下两种情况中的任意一种情况下，终端设备还可以通过第一控制面连接向接入网设备发送第二USIM的标识，第二USIM的标识可以包含在第一NAS请求消息中。
情况1：第一指示信息为第一USIM的标识；
情况2：第一指示信息不为第一USIM的标识且不为第一USIM的标识和第二USIM的标识。
可选的，在情况2下，终端设备还可以通过第一控制面连接向接入网设备发送第一USIM的标识。第一USIM的标识可以包含或不包含在第一NAS请求消息中，在此不做限制。
702.终端设备通过第一控制面连接向接入网设备发送第一消息。
其中，步骤702可以采用以下任意一种实施方式实现：实施方式A、包括步骤702A和步骤703A，实施方式A中的第一指示信息不为第一USIM的标识且不为第一USIM的标识和第二USIM的标识；实施方式B、包括步骤702B和步骤703B，实施方式B中的第一指示信息为第一USIM的标识；实施方式C、包括步骤702C和步骤703C，实施方式C中的第一指示信息为第一USIM的标识和第二USIM的标识。
实施方式A
702A.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，通过第一控制面连接向接入网设备发送第一USIM的标识、第二路由标识和第一NAS请求消息，第一NAS请求消息包括第一指示信息，第一NAS请求消息还包括第二USIM的标识，第一NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第一USIM的标识、第二路由标识和第一NAS请求消息。
其中，702A中的第二路由标识可以参考图5步骤503中涉及到的第二路由标识，在此不加赘述。
可选的，步骤702A中的第一USIM的标识、第二路由标识和第一NAS请求消息可以携带在同一RRC消息发送给接入网设备，在此不做限制。
703A.接入网设备根据第二路由标识向第二AMF网元发送第一指示信息、第一NAS请求消息和第一USIM的标识。相应的，第二AMF网元从接入网设备接收第一指示信息、第一NAS请求消息和第一USIM的标识。可选的，步骤703A中的第一指示信息、第一NAS请求消息和第一USIM的标识可以携带在第二USIM的N2消息发送给第二AMF网元。其中，第二USIM的N2消息，可以参考图6步骤603中涉及到的第二USIM的N2消息，在此不加赘述。
可选的，接入网设备还可以根据第二路由标识向第二AMF网元发送第一USIM的NGAP标识。其中，第一USIM的NGAP标识，可以参考图5步骤502中涉及到的第一USIM的NGAP标识，在此不加赘述。
实施方式B
702B.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，通过第一控制面连接向接入网设备发送第二路由标识和第一NAS请求消息，第一NAS请求消息包括第一指示信息(第一指示信息为第一USIM的标识)，第一NAS请求消息还包括第二USIM的标识，第一NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第二路由标识和第一NAS请求消息。
其中，702B中的第二路由标识可以参考图5步骤503中涉及到的第二路由标识，在此不加赘述。
可选的，步骤702B中的第二路由标识和第一NAS请求消息可以携带在同一RRC消息发送给接入网设备，在此不做限制。703B.接入网设备根据第二路由标识向第二AMF网元发送第一NAS请求消息。相应的，第二AMF网元从接入网设备接收第一NAS请求消息。
可选的，步骤703B中的第一NAS请求消息可以携带在第二USIM的N2消息发送给第二AMF网元。其中，第二USIM的N2消息，可以参考图6步骤603中涉及到的第二USIM的N2消息，在此不加赘述。
可选的，接入网设备还可以根据第二路由标识向第二AMF网元发送第一USIM的NGAP标识。其中，第一USIM的NGAP标识，可以参考图5步骤502中涉及到的第一USIM的NGAP标识，在此不加赘述。
实施方式C
702C.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，通过第一控制面连接向接入网设备发送第二路由标识和第一NAS请求消息，第 一NAS请求消息包括第一指示信息(第一指示信息为第一USIM的标识和第二USIM的标识)，第一NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第二路由标识和第一NAS请求消息。
其中，702C中的第二路由标识可以参考图5步骤503中涉及到的第二路由标识，在此不加赘述。
可选的，步骤702C中的第二路由标识和第一NAS请求消息可以携带在同一RRC消息发送给接入网设备，在此不做限制。
703C.接入网设备根据第二路由标识向第二AMF网元发送第一NAS请求消息。相应的，第二AMF网元从接入网设备接收第一NAS请求消息。
通过上述3种实施方式中的任意一种实施方式可实现终端设备向第二AMF网元发送第一指示信息。在步骤702之后，该方案还包括步骤704-709。
704.第二AMF网元根据第二USIM的标识获取第二USIM的签约信息。
其中，步骤704可以参考图6步骤604的描述，在此不加赘述。
705.第二AMF网元根据第一指示信息和第二USIM的签约信息将第一USIM的标识与第二USIM的第二上下文信息关联。
其中，关于第二USIM的签约信息，可以参考图5步骤505涉及到的第二USIM的签约信息，在此不加赘述。
可选的，第二USIM的第二上下文信息包括以下一项或多项：第二USIM的标识、第二USIM的NGAP标识、第二NAS上下文信息、第二USIM的连接管理状态信息、第二USIM的注册状态信息。其中，第二USIM的第二上下文信息为第二AMF网元中第二USIM的上下文信息。
可选的，步骤705，可以包括：第二AMF网元在接入网设备为共享接入网设备的情况下，根据第一指示信息和第二USIM的签约信息将第一USIM的标识与第二USIM的第二上下文信息关联。其中，在接入网设备为共享接入网设备的情况下，可以理解为：在接入网设备支持MOCN模式的网络共享方式的情况下，在此不做限制。
可选的，若第二AMF网元还从接入网设备接收第一USIM的NGAP标识，则第二AMF网元还可以根据第一指示信息和第二USIM的签约信息将第一USIM的NGAP标识与第二USIM的第二上下文信息关联。
可选的，若第一AMF网元和第二AMF网元为同一设备，第二AMF网元还可以根据第一指示信息和第二USIM的签约信息将第一USIM的第二上下文信息和第二USIM的第二上下文信息关联。可以理解的，第二AMF网元可以在接入网设备为共享接入网设备的情况下，根据第一指示信息和第二USIM的签约信息将第一USIM的第二上下文信息和第二USIM的第二上下文信息关联。
可选的，第一USIM的第二上下文信息包括以下一项或多项：第一USIM的标识、第一USIM的NGAP标识、第一NAS上下文信息、第一USIM的连接管理状态信息、第一USIM的注册状态信息。其中，第一USIM的第二上下文信息为第一AMF网元中第一USIM的上下文信息。
706.第二AMF网元向接入网设备发送第二指示信息，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同。
例如，第二AMF网元根据第一指示信息和第二USIM的签约信息，向接入网设备发 送第二指示信息。可选的，第二AMF网元通过请求消息向接入网设备发送第二指示信息，该请求消息用于请求建立第二AMF网元与接入网设备之间的第二USIM的N2信令连接。相应的，接入网设备从第二AMF网元接收请求消息。
其中，第二指示信息，可以参考图5步骤504的描述，在此不加赘述。
其中，步骤706中的请求消息例如可以为初始上下文建立请求消息或其他消息，在此不做限制。
可选的，步骤706可以包括：第二AMF网元根据第一USIM的标识、第一指示信息和第二USIM的签约信息，向接入网设备发送请求消息。可选的，若第二AMF网元还从接入网设备接收第一USIM的NGAP标识，第二AMF网元还可以根据第一USIM的NGAP标识、第一指示信息和第二USIM的签约信息，向接入网设备发送请求消息。
可选的，步骤706中的请求消息还可以包括步骤709中的第一NAS请求消息的响应消息，在这种情况下，步骤709不执行。其中，若第一NAS请求消息为注册请求消息，则第一NAS请求消息的响应消息为注册接受消息；若第一NAS请求消息为服务请求消息，则第一NAS请求消息的响应消息为服务接受消息。
707.接入网设备向第二AMF网元发送请求消息的响应消息，请求消息的响应消息用于指示第二AMF网元与接入网设备之间的第二USIM的N2信令连接建立成功。相应的，第二AMF网元从接入网设备接收请求消息的响应消息。
其中，步骤707中的请求消息的响应消息例如可以为初始上下文建立请求消息的响应消息或其他消息，在此不做限制。
708.接入网设备根据第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
其中，步骤708可以参考图5步骤505针对方式二的描述，在此不加赘述。
可选的，步骤708可以在步骤707之前执行。
709.第二AMF网元向终端设备发送第一NAS请求消息的响应消息，第一NAS请求消息的响应消息用于指示第二USIM的注册已完成。相应的，终端设备从第二AMF网元接收第一NAS请求消息的响应消息。
其中，步骤709，可以包括：第二AMF网元通过接入网设备向终端设备发送第一NAS请求消息的响应消息。
可选的，在步骤708之后，接入网设备还可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备还可以将第二USIM的数据面、PDU会话、QoS流映射到第一DRB上；或，接入网设备可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备将第二USIM的数据面、PDU会话、QoS流映射到第二DRB上，在此不做限制。其中，关于第一DRB、第二DRB可以参考图6步骤607涉及到的相关描述，在此不加赘述。
基于上述技术方案，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，在终端设备包括的第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，终端设备通过接入网设备向第二AMF网元发送第一指示信息，以使得第二AMF网元在授权通过后向接入网设备发送第二指示信息，从而可以让接入网设备在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终 端设备的能耗。另外，终端设备还可以向接入网设备发送第二路由标识和第一NAS请求消息，使得接入网设备可以根据第二路由标识向第二AMF网元发送第一NAS请求消息，从而实现了注册第二USIM。
可以理解的，在步骤709之后，即在第二USIM完成注册之后的内容可以参考图6步骤608之后的内容，在此不加赘述。
参见图8，图8为本申请实施例提供的又一种场景下的方案：第一USIM和第二USIM均处于空闲态，但第一USIM先从空闲态进入连接态，第一USIM请求建立与第一AMF网元之间的通信连接时需要经过核心网的授权的过程，以及，第二USIM在第一USIM进入连接态后再从空闲态进入连接态的，第二USIM请求建立与第二AMF网元之间的通信连接时需要结合凭证信息实现核心网的授权的过程。其中，图8中的接入网设备为图2中的接入网设备10，图8中的终端设备为图2中的终端设备20，图8中的第一AMF网元为图2中的第一AMF网元30。如图8所示，该方法包括但不限于以下步骤：
801.接入网设备向终端设备发送网络标识，该网络标识用于标识接入网设备支持的一个或多个网络。其中，终端设备包括第一USIM和第二USIM。
其中，步骤801可参考图5中步骤501的描述，在此不加赘述。
可选的，在步骤801之后，本方案还包括：终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向接入网设备发送第一路由标识和第六NAS请求消息，第六NAS请求消息用于请求注册第一USIM。
其中，第一路由标识用于寻址第一AMF网元，第一路由标识可以包括以下一项或多项：第一网络的标识、第一USIM的标识或第一AMF网元的标识。其中，第一USIM的标识可以用于指示第一AMF网元或第一网络，第一USIM属于第一网络。第一网络的标识可以为第一PLMN标识。第一PLMN标识可以用于标识接入网设备支持的运营商网络。
其中，若第一路由标识包括第一USIM的标识，第一USIM的标识为第一GUTI，那么，第一GUTI的高位比特可以包括第一网络的标识或第一AMF网元的标识，第一GUTI的全部比特可以为第一USIM的标识；若第一路由标识包括第一网络的标识和第一USIM的标识，第一USIM的标识为第一S-TMSI，那么，第一S-TMSI的高位比特可以为第一网络内唯一的第一AMF网元的标识，第一S-TMSI的全部比特可以为第一网络内唯一的第一USIM的标识。
其中，第六NAS请求消息可以为注册接受消息或服务接受消息，在此不做限制。
可选的，终端设备还可以向接入网设备发送第五指示信息，第五指示信息可以包含或不包含在第六NAS请求消息中，在此不做限制。第五指示信息可以为第二USIM的标识，或，第五指示信息可以为第一USIM的标识和第二USIM的标识，或，第五指示信息不为第二USIM的标识且不为第一USIM的标识和第二USIM的标识。其中，第五指示信息不为第二USIM的标识且不为第一USIM的标识和第二USIM的标识，可以理解为：第五指示信息为指示位，该指示位跟第一USIM的标识和第二USIM的标识无关。
可选的，在以下两种状况中的任意一种状况下，终端设备还可以向接入网设备发送第一USIM的标识，第一USIM的标识可以包含在第六NAS请求消息中。
状况1：第五指示信息为第二USIM的标识；
状况2：第五指示信息不为第二USIM的标识且不为第一USIM的标识和第二USIM的标识。
可选的，在状况2下，终端设备还可以向接入网设备发送第二USIM的标识。第二USIM的标识可以包含或不包含在第六NAS请求消息中，在此不做限制。
以下以第五指示信息包含在第六NAS请求消息为例说明本方案。具体的，可以采用以下任意一种实现：方面A、包括步骤802A-809A，方面A中的第五指示信息不为第二USIM的标识且不为第一USIM的标识和第二USIM的标识；方面B、包括步骤802B，方面B中的第五指示信息为第二USIM的标识或方面B中的第五指示信息为第一USIM的标识和第二USIM的标识。
方面A
802A.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向接入网设备发送第二USIM的标识、第一路由标识和第六NAS请求消息，第六NAS请求消息包括第五指示信息，第六NAS请求消息还包括第一USIM的标识，第六NAS请求消息用于请求注册第一USIM。相应的，接入网设备从终端设备接收第二USIM的标识、第一路由标识和第六NAS请求消息。
可选的，步骤802A中的第二USIM的标识、第一路由标识和第六NAS请求消息可以携带在同一RRC消息发送给接入网设备，在此不做限制。
803A.接入网设备根据第一路由标识向第一AMF网元发送第五指示信息、第六NAS请求消息和第二USIM的标识。相应的，第一AMF网元从接入网设备接收第五指示信息、第六NAS请求消息和第二USIM的标识。
可选的，步骤803A中的第五指示信息、第六NAS请求消息和第二USIM的标识可以携带在第一USIM的N2消息发送给第一AMF网元。其中，第一USIM的N2消息例如可以为初始UE消息或其他消息，在此不加赘述。
可选的，接入网设备还可以根据第一路由标识向第一AMF网元发送第二USIM的NGAP标识。其中，第二USIM的NGAP标识，可以参考图5步骤502中涉及到的第二USIM的NGAP标识，在此不加赘述。
804A.第一AMF网元根据第一USIM的标识获取第一USIM的签约信息。
其中，第一USIM的签约信息包括以下一项或多项：允许第一USIM与第二USIM共用同一控制面连接，允许第一USIM与除第一USIM之外的USIM共用同一控制面连接，允许第一USIM与属于第一网络的除第一USIM之外的USIM共用同一控制面连接，或，允许与第一USIM共用同一控制面连接的USIM的标识。
可选的，允许与第一USIM共用同一控制面连接的USIM的标识可以包括第二USIM的标识。
其中，步骤804A可以理解为：第一AMF网元根据第一USIM的标识从第一UDM网元获取第一USIM的签约信息。
805A.第一AMF网元根据第五指示信息和第一USIM的签约信息将第二USIM的标识与第一USIM的第二上下文信息关联，并获取第一凭证信息。
其中，第一USIM的第二上下文信息，可以参考图7步骤705A涉及到的第一USIM的第二上下文信息，在此不加赘述。
其中，关于第一凭证信息，可以参考图5步骤504涉及到的第一凭证信息，在此不加 赘述。
可选的，第一凭证信息用于指示以下一项或多项：第一网络允许第一USIM与第二USIM共用同一控制面连接，或，第一网络允许第一USIM与除第一USIM的USIM共用同一控制面连接。
可选的，步骤805A，可以包括：第一AMF网元在接入网设备为共享接入网设备的情况下，根据第五指示信息和第一USIM的签约信息将第二USIM的标识与第一USIM的第二上下文信息关联。
可选的，若第一AMF网元还从接入网设备接收第二USIM的NGAP标识，则第一AMF网元还可以根据第五指示信息和第一USIM的签约信息将第二USIM的NGAP标识与第一USIM的第二上下文信息关联。
可选的，若第一AMF网元和第二AMF网元为同一设备，第一AMF网元还可以根据第五指示信息和第一USIM的签约信息将第一USIM的第二上下文信息和第二USIM的第二上下文信息关联。可以理解的，第二AMF网元可以在接入网设备为共享接入网设备的情况下，根据第五指示信息和第一USIM的签约信息将第一USIM的第二上下文信息和第二USIM的第二上下文信息关联。
其中，关于第二USIM的第二上下文信息，可以参考图7步骤705A涉及到的第二USIM的第二上下文信息，在此不加赘述。
806A.第一AMF网元向接入网设备发送第一凭证信息。
例如，第一AMF网元根据第五指示信息和第一USIM的签约信息，向接入网设备发送第一请求消息，第一请求消息包括第一凭证信息，第一请求消息用于请求建立第一AMF网元与接入网设备之间的第一USIM的N2信令连接。相应的，接入网设备从第一AMF网元接收第一请求消息。
其中，步骤806A中的第一请求消息例如可以为初始上下文建立请求消息或其他消息，在此不做限制。
可选的，步骤806A可以包括：第一AMF网元根据第二USIM的标识、第五指示信息和第一USIM的签约信息，向接入网设备发送第一请求消息。若第一AMF网元还可以从接入网设备接收第二USIM的NGAP标识，第一AMF网元还可以根据第二USIM的NGAP标识、第五指示信息和第一USIM的签约信息，向接入网设备发送第一请求消息。
可选的，步骤806A中的第一请求消息还可以包括步骤808A中的NAS响应消息，在这种情况下，步骤808A不执行。
807A.接入网设备向第二AMF网元发送第一请求消息的响应消息，第一请求消息的响应消息用于指示第一AMF网元与接入网设备之间的第一USIM的N2信令连接建立成功。相应的，第二AMF网元从接入网设备接收第一请求消息的响应消息。
其中，步骤807A中的第一请求消息的响应消息例如可以为初始上下文建立请求消息的响应消息或其他消息，在此不做限制。
808A.第一AMF网元向终端设备发送第六NAS请求消息的响应消息，第六NAS请求消息的响应消息用于指示第一USIM的注册已完成，第六NAS请求消息的响应消息包括第一凭证信息。相应的，终端设备从第一AMF网元接收第六NAS请求消息的响应消息。
其中，步骤808A，可以包括：第一AMF网元通过接入网设备向终端设备发送第六NAS请求消息的响应消息。
可选的，在步骤808A之后，即终端设备从第一AMF网元接收第六NAS请求消息的响应消息之后，本方案还包括：终端设备通过第一控制面连接向接入网设备发送第二路由标识和第一NAS请求消息。其中，第一NAS请求消息可以参考图7中步骤701相关描述，在此不加赘述。
可选的，终端设备还可以通过第一控制面连接向接入网设备发送第一指示信息，第一指示信息可以包含或不包含在第一NAS请求消息中，在此不做限制。第一指示信息可以参考图5步骤502和步骤503中涉及到的第一指示信息，在此不加赘述。
其中，在步骤808A之后，本方案涉及到的步骤可以参考图7中步骤701之后的内容。
可以理解的，若以第一指示信息包含在第一NAS请求消息为例说明本方案，那么，在步骤808A之后，本方案涉及到的步骤809A-811A与图7中实施方式A包括的步骤702A-703A、实施方式B包括的步骤702B-703B或实施方式C包括的步骤702C-703C类似，区别如下：
第一、若步骤809A与图7中实施方式A类似，则步骤809A可以为：终端设备通过第一控制面连接向接入网设备发送第一凭证信息、第一USIM的标识、第二路由标识和第一NAS请求消息，第一NAS请求消息包括第一指示信息，第一NAS请求消息还包括第二USIM的标识，第一NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第一凭证信息、第一USIM的标识、第二路由标识和第一NAS请求消息；若步骤809A与图7中实施方式B类似，则步骤809A可以为：终端设备通过第一控制面连接向接入网设备发送第一凭证信息、第二路由标识和第一NAS请求消息，第一NAS请求消息包括第一指示信息(第一指示信息为第一USIM的标识)，第一NAS请求消息还包括第二USIM的标识，第一NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第一凭证信息、第二路由标识和第一NAS请求消息；若步骤809A与图7中实施方式C类似，则步骤809A可以为：终端设备通过第一控制面连接向接入网设备发送第一凭证信息、第二路由标识和第一NAS请求消息，第一NAS请求消息包括第一指示信息(第一指示信息为第一USIM的标识和第二USIM的标识)，第一NAS请求消息用于请求注册第二USIM。相应的，接入网设备通过第一控制面连接从终端设备接收第一凭证信息、第二路由标识和第一NAS请求消息。
第二、对于步骤810A，接入网设备还可以根据第二路由标识向第二AMF网元发送第一凭证信息。
在步骤811A之后，本方案还包括步骤812A-816A，步骤812A-816A与图7中步骤704-709类似，区别如下：
第一、对于步骤812A，第二AMF网元还可以获取第二凭证信息，并将第一凭证信息、第二凭证信息与第二USIM的第二上下文信息关联。
第二、对于步骤813A，在参考图7中步骤706时，步骤706中的请求消息需要替换为：步骤813A中的第二请求消息，步骤813A中的第二请求消息还可以包括第一凭证信息和第二凭证信息，且步骤813A中的第二指示信息不包括第二凭证信息，和/或，第二指示信息不包括第一凭证信息和第二凭证信息。其中，步骤813A中的第二请求消息例如可以为初始上下文建立请求消息或其他消息，在此不做限制。
第三、对于步骤814A，在参考图7中步骤707时，步骤707中的请求消息的响应消息需要替换为：步骤814A中的第二请求消息的响应消息。其中，步骤814A中的第二请求消 息的响应消息例如可以为初始上下文建立响应消息或其他消息，在此不做限制。
第四、步骤708为：接入网设备根据第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，而步骤815A为：接入网设备根据第一凭证信息以及以下一项或多项：第二指示信息、第二凭证信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
第五、对于步骤816A，在参考图7中步骤709时，步骤816A中的第一NAS请求消息的响应消息还可以包括第二凭证信息。
可选的，第二凭证信息用于指示以下一项或多项：第二网络允许第一USIM与第二USIM共用同一控制面连接，或，第二网络允许第二USIM与除第二USIM的USIM共用同一控制面连接。
方面B
802B.终端设备在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向接入网设备发送第一路由标识和第六NAS请求消息，第六NAS请求消息包括第五指示信息，第六NAS请求消息还包括第一USIM的标识，第六NAS请求消息用于请求注册第一USIM。相应的，接入网设备从终端设备接收第一路由标识和第六NAS请求消息。
可选的，步骤802B中的第一路由标识和第六NAS请求消息可以携带在同一RRC消息发送给接入网设备，在此不做限制。
803B.接入网设备根据第一路由标识向第一AMF网元发送第六NAS请求消息。相应的，第一AMF网元从接入网设备接收第六NAS请求消息。
可选的，步骤803B中的第六NAS请求消息可以携带在第一USIM的N2消息发送给第一AMF网元。其中，第一USIM的N2消息例如可以为初始UE消息或其他消息，在此不加赘述。
可选的，接入网设备还可以根据第一路由标识向第一AMF网元发送第二USIM的NGAP标识。其中，第二USIM的NGAP标识，可以参考图5步骤502中涉及到的第二USIM的NGAP标识，在此不加赘述。
804B-8016B.与步骤804A-8016A相同，在此不加赘述。
可选的，在步骤815A或步骤815B之后，接入网设备还可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备还可以将第二USIM的数据面、PDU会话、QoS流映射到第一DRB上；或，接入网设备可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备将第二USIM的数据面、PDU会话、QoS流映射到第二DRB上，在此不做限制。其中，关于第一DRB、第二DRB可以参考图6步骤607涉及到的相关描述，在此不加赘述。
可选的，在步骤813A或步骤813B之后，接入网设备还可以向终端设备发送第二凭证信息。在终端设备从接入网设备接收第二凭证信息之后，终端设备可以向第一AMF网元发送第一凭证信息和第二凭证信息，或，终端设备可以向第一AMF网元发送第二凭证信息，或，终端设备可以向第二AMF网元发送第一凭证信息和第二凭证信息，或，终端设备可以向第二AMF网元发送第一凭证信息，在此不做限制。
基于上述技术方案，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，在终端设备包括的第一USIM和第二USIM属于接入网设备支持 的一个或多个网络的情况下，终端设备可以三种方式实现第一USIM从空闲态进入连接态。在第一USIM从空闲态进入连接态之后，终端设备通过接入网设备向第二AMF网元发送第一指示信息，以使得第二AMF网元在授权通过后向接入网设备发送第二指示信息，从而可以让接入网设备在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。另外，终端设备还可以向接入网设备发送第二路由标识和第一NAS请求消息，使得接入网设备可以根据第二路由标识向第二AMF网元发送第一NAS请求消息，从而实现了注册第二USIM。
可以理解的，在步骤816A或816B之后，即在第二USIM完成注册之后的内容可以参考图6步骤608之后的内容，在此不加赘述。
下面为本申请实施例提供的又一种场景下的方案：第一USIM和第二USIM均处于空闲态，第一USIM和第二USIM同时从空闲态进入连接态，第一USIM请求建立与第一AMF网元之间的通信连接时需要经过核心网的授权的过程，以及，第二USIM请求建立与第二AMF网元之间的通信连接时需要经过核心网的授权的过程。该方法包括但不限于以下步骤：
901.接入网设备向终端设备发送网络标识，该网络标识用于标识接入网设备支持的一个或多个网络。其中，终端设备包括第一USIM和第二USIM。
其中，步骤901可参考图5中步骤501相同，在此不加赘述。
可选的，在步骤901之后，本方案还可以通过以下三种方法中的任意一种方法来实现：
方法一、包括步骤902A-915A，其中，方法一中的第一指示信息不为第一USIM的标识和/或第二USIM的标识；方法二、包括步骤902B-915B，其中，方法二中的第一指示信息为第一USIM的标识和第二USIM的标识。
方法一
可选的，在方法一中，终端设备在第一USIM和第二USIM属于一个或多个网络的情况下，向接入网设备发送第一消息，第一消息包括第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，第二NAS请求消息包括第一USIM的标识，第三NAS请求消息包括第二USIM的标识。其中，终端设备还可以向接入网设备发送第一指示信息，第一指示信息可以包含在第二NAS请求消息和第三NAS请求消息，或，第一指示信息可以不包含在第二NAS请求消息和第三NAS请求消息，在此不做限制。以下以第一指示信息不包含在第二NAS请求消息和第三NAS请求消息为例，说明方法一具体的实现方式。具体的，可以参考图9A，图9A可以包括步骤901，图9A还可以包括但不限于如下步骤：
902A.终端设备向接入网设备发送第一消息。
可选的，步骤902A，可以包括：在第一USIM和第二USIM属于一个或多个网络的情况下，向接入网设备发送第一消息，第一消息包括第一指示信息、第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识。其中，第二NAS请求消息包括第一USIM的标识，第三NAS请求消息包括第二USIM的标识。例如，第二NAS请求消息用于请求注册第一USIM，第三NAS请求消息用于请求注册第二USIM。
例如，终端设备通过第一RRC消息向接入网设备发送上述第一指示信息、第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识。其中，第一RRC消息例 如可以为上行信息传输(UL information transfer)或RRC建立请求消息，在此不做限制。
其中，902A中的第二路由标识可以参考图5步骤503中涉及到的第二路由标识，在此不加赘述。
其中，902A中的第一路由标识可以参考图8步骤801中涉及到的第一路由标识，在此不加赘述。
903A.接入网设备根据第一路由标识向第一AMF网元发送第二NAS请求消息、第一指示信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识。相应的，第一AMF网元从接入网设备接收第二NAS请求消息、第一指示信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识。
其中，第二USIM的NGAP标识，可以参考图5步骤502中涉及到的第二USIM的NGAP标识，在此不加赘述。
可选的，第二NAS请求消息、第一指示信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识可以携带在第一USIM的N2消息中发送给第一AMF网元。其中，第一USIM的N2消息可以参考图8步骤803A相关描述，在此不加赘述。
904A.第一AMF网元根据第一USIM的标识获取第一USIM的签约信息。
其中，步骤904A可参考图8步骤804A，在此不加赘述。
905A.第一AMF网元根据第一指示信息和第一USIM的签约信息将第二USIM的标识和/或第二USIM的NGAP标识与第一USIM的第二上下文信息关联。
其中，第一USIM的第二上下文信息可以参考图8步骤805A相关描述，在此不加赘述。
906A.第一AMF网元向接入网设备发送第三指示信息，第三指示信息用于指示允许第一控制面连接和第二控制面连接相同。相应的，接入网设备从第一AMF网元接收第三指示信息。
例如，第一AMF网元根据第一指示信息和第一USIM的签约信息，向接入网设备发送第三请求消息，第三请求消息包括第三指示信息，第三请求消息用于请求建立第一AMF网元与接入网设备之间的第一USIM的N2信令连接。
可选的，第三指示信息可以包括第二USIM的标识。若第一AMF网元还可以从接入网设备接收第二USIM的NGAP标识，那么，第三指示信息还可以包括第二USIM的NGAP标识。其中，第二USIM的标识或第二USIM的NGAP标识用于指示第一AMF网元允许第一USIM与除第一USIM之外的USIM共用同一控制面连接，或，第二USIM的标识或第二USIM的NGAP标识用于指示第一AMF网元允许第一USIM与第二USIM共用同一控制面连接。
可选的，第三指示信息用于指示允许第一控制面连接和第二控制面连接相同，包括以下一种或多种情况：第三指示信息用于第一AMF网元允许第一USIM与除第一USIM之外的USIM共用同一控制面连接；或，第三指示信息用于第一AMF网元允许第一USIM与第二USIM共用同一控制面连接；或，第三指示信息用于第一AMF网元允许将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联，在此不做限制。
其中，步骤906A中的第三请求消息例如可以为初始上下文建立请求消息或其他消息，在此不做限制。
可选的，步骤906A可以包括：第一AMF网元根据第一指示信息、第一USIM的签约 信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识，向接入网设备发送第三请求消息。
可选的，步骤906A中的第三请求消息还可以包括步骤908A中的第二NAS请求消息的响应消息，在这种情况下，步骤908A不执行。
907A.接入网设备向第一AMF网元发送第三请求消息的响应消息，第三请求消息的响应消息用于指示第一AMF网元与接入网设备之间的第一USIM的N2信令连接建立成功。相应的，第一AMF网元从接入网设备接收第三请求消息的响应消息。
908A.第一AMF网元向终端设备发送第二NAS请求消息的响应消息，第二NAS请求消息的响应消息用于指示第一USIM的注册已完成。相应的，终端设备从第一AMF网元接收第二NAS请求消息的响应消息。
其中，步骤908A，可以包括：第一AMF网元通过接入网设备向终端设备发送第二NAS请求消息的响应消息。
909A.接入网设备根据第二路由标识向第二AMF网元发送第三NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识。相应的，第二AMF网元从接入网设备接收第三NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识。
其中，第一USIM的NGAP标识，可以参考图5步骤502中涉及到的第一USIM的NGAP标识，在此不加赘述。
可选的，第三NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识可以携带在第二USIM的N2消息中发送给第二AMF网元。其中，第二USIM的N2消息可以参考图7步骤703A相关描述，在此不加赘述。
910A.第二AMF网元根据第二USIM的标识获取第二USIM的签约信息。
其中，步骤910A可参考图7步骤704A，在此不加赘述。
911A.第二AMF网元根据第一指示信息和第二USIM的签约信息将第一USIM的标识和/或第一USIM的NGAP标识与第二USIM的第二上下文信息关联。
其中，第二USIM的第二上下文信息可以参考图7步骤705A相关描述，在此不加赘述。
912A.第二AMF网元向接入网设备发送第二指示信息，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同。相应的，接入网设备从第二AMF网元接收第二指示信息。
例如，第二AMF网元根据第一指示信息和第二USIM的签约信息，向接入网设备发送第四请求消息，第四请求消息包括第二指示信息，第四请求消息用于请求建立第二AMF网元与接入网设备之间的第二USIM的N2信令连接。
其中，第二指示信息可以参考图7步骤706A相关描述，在此不加赘述。
其中，步骤912A中的第四请求消息例如可以为初始上下文建立请求消息或其他消息，在此不做限制。
可选的，步骤912A可以包括：第二AMF网元根据第一指示信息、第二USIM的签约信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识，向接入网设备发送第四请求消息。
可选的，步骤912A中的第四请求消息还可以包括步骤914A中的第三NAS请求消息 的响应消息，在这种情况下，步骤914A不执行。
913A.接入网设备向第二AMF网元发送第四请求消息的响应消息，第四请求消息的响应消息用于指示第二AMF网元与接入网设备之间的第二USIM的N2信令连接建立成功。相应的，第二AMF网元从接入网设备接收第四请求消息的响应消息。
其中，第四请求消息的响应消息例如可以为初始上下文建立响应消息或其他消息，在此不做限制。
914A.第二AMF网元向终端设备发送第三NAS请求消息的响应消息，第三NAS请求消息的响应消息用于指示第二USIM的注册已完成。相应的，终端设备从第二AMF网元接收第三NAS请求消息的响应消息。
其中，步骤914A，可以包括：第二AMF网元通过接入网设备向终端设备发送第三NAS请求消息的响应消息。
可选的，步骤902A-步骤909A可以在步骤910A-914A之后执行，或，步骤902A-步骤909A和步骤910A-914A同时执行，在此不做限定。
915A.接入网设备根据第二指示信息和第三指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
其中，第一USIM的第一上下文信息、第二USIM的第一上下文信息参考图5步骤502相关描述，在此不加赘述。
可选的，步骤915A可以在接入网设备从第一AMF网元接收第三指示信息，以及接入网设备从第二AMF网元接收第二指示信息之后的任意一个步骤执行。
方法二
可以参考图9B，图9B可以包括步骤901，图9B还可以包括但不限于如下步骤：
902B.终端设备向接入网设备发送第一消息。
可选的，步骤902B，可以包括：在第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，向接入网设备发送第一消息，第一消息包括第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识。第四NAS请求消息用于请求注册第一USIM，第五NAS请求消息用于请求注册第二USIM。
例如，终端设备通过第一消息向接入网设备发送上述第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识。
在一种实施方式中，第四NAS请求消息和第五NAS请求消息中包括第一指示信息，第一指示信息为第一USIM的标识和第二USIM的标识。
在另一种实施方式中，第一消息中还包括第一指示信息，第一指示信息为第一USIM的标识和第二USIM的标识。第四NAS请求消息中包括第一USIM的标识，第五NAS请求消息包括第二USIM的标识。
其中，902B中的第二路由标识可以参考图5步骤503中涉及到的第二路由标识，在此不加赘述。
其中，902B中的第一路由标识可以参考图8步骤801中涉及到的第一路由标识，在此不加赘述。
903B.接入网设备根据第一路由标识向第一AMF网元发送第四NAS请求消息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识。相应的，第一AMF网元从接入网设备接收第四NAS请求消息以及以下一项或多项：第二USIM的标识或第二 USIM的NGAP标识。
可选的，第四NAS请求消息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识可以携带在第一USIM的N2消息中发送给第一AMF网元。其中，第一USIM的N2消息可以参考图8步骤803A相关描述，在此不加赘述。
904B-907B.与步骤903A-907A相同，在此不加赘述。
908B.与步骤908A类似，区别在于，对于步骤908B，在参考步骤908A时，需要将步骤908A中的第二NAS请求消息替换为第四NAS请求消息。
909B.接入网设备根据第二路由标识向第二AMF网元发送第五NAS请求消息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识。相应的，第二AMF网元从接入网设备接收第五NAS请求消息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识。
其中，第一USIM的NGAP标识，可以参考图5步骤502中涉及到的第一USIM的NGAP标识，在此不加赘述。
可选的，第五NAS请求消息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识可以携带在第二USIM的N2消息中发送给第二AMF网元。其中，第二USIM的N2消息可以参考图7步骤803A相关描述，在此不加赘述。
910B-913B.与步骤910A-913A相同，在此不加赘述。
914B.与步骤914A类似，区别在于，对于步骤914B，在参考步骤914A时，需要将步骤914A中的第三NAS请求消息替换为第五NAS请求消息。
915B.与步骤915A相同，在此不加赘述。
可选的，在步骤914A和步骤914B之后，接入网设备还可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备还可以将第二USIM的数据面、PDU会话、QoS流映射到第一DRB上；或，接入网设备可以将第一USIM的数据面、PDU会话、QoS流映射到第一DRB上，接入网设备将第二USIM的数据面、PDU会话、QoS流映射到第二DRB上，在此不做限制。其中，关于第一DRB、第二DRB可以参考图6步骤607涉及到的相关描述，在此不加赘述。
基于上述技术方案，终端设备可以从接入网设备获取用于标识接入网设备支持的一个或多个网络的网络标识，在终端设备包括的第一USIM和第二USIM属于接入网设备支持的一个或多个网络的情况下，终端设备可以通过同一RRC消息向接入网设备发送第一指示信息，以使得第二AMF网元在授权通过后向接入网设备发送第二指示信息，从而可以让接入网设备在核心网授权通过的情况下使得多个通用用户识别模块与接入网设备建立同一控制面连接，进而降低了通信连接容量、减少了网络拥塞、提高了通信能力以及降低了终端设备的能耗。另外，终端设备还可以通过同一RRC消息向接入网设备发送路由标识和NAS请求消息，使得接入网设备可以根据路由标识向AMF网元发送NAS请求消息，从而实现了注册USIM。
可以理解的，在步骤915A或915B之后，即在第二USIM完成注册之后的内容可以参考图6步骤608之后的内容，在此不加赘述。
上述主要从各个网元之间交互的角度对本申请提供的方案进行了介绍。可以理解的是，上述实现各网元为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。 本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端设备或接入网设备或第二AMF网元进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中，上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，参见图10，图10为本申请实施例提供的一种通信装置的结构示意图。该通信装置1000可应用于上述图5-图9所示的方法中，如图10所示，该通信装置1000包括：处理模块1001和收发模块1002。处理模块1001可以是一个或多个处理器，收发模块1002可以是收发器或者通信接口。该通信装置可用于实现上述任一方法实施例中涉及终端设备或接入网设备或第二AMF网元，或用于实现上述任一方法实施例中涉及网元的功能。该网元或者网络功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。可选的，该通信装置1000还可以包括存储模块1003，用于存储通信装置1000的程序代码和数据。
[根据细则91更正 05.07.2021]　
一种实例，当该通信装置作为终端设备或为应用于终端设备中的芯片，并执行上述方法实施例中由终端设备执行的步骤。收发模块1002用于支持与接入网设备等之间的通信，收发模块具体执行图5-图9B中由终端设备执行的发送和/或接收的动作，例如支持终端设备执行步骤502和步骤602中的一个或多个步骤，和/或用于本文中所描述的技术的其他过程。处理模块1001可用于支持通信装置1000执行上述方法实施例中的处理动作，例如，支持终端设备执行本文所描述的技术的其它过程。
[根据细则91更正 05.07.2021]　
一种实例，当该通信装置作为接入网设备或为应用于接入网设备中的芯片，并执行上述方法实施例中由接入网设备执行的步骤。收发模块1002，用于支持与终端设备等之间的通信，具体执行图5-图9B中由接入网设备执行的发送和/或接收的动作，例如支持接入网设备执行步骤501和步骤601中的一个或多个步骤，和/或用于本文中所描述的技术的其他过程。处理模块1001可用于支持通信装置1000执行上述方法实施例中的处理动作，例如，支持接入网设备执行步骤607和步骤708A中的一个或多个步骤，和/或用于本文所描述的技术的其它过程。
[根据细则91更正 05.07.2021]　
一种实例，当该通信装置作为第二AMF网元或为应用于第二AMF网元中的芯片，并执行上述方法实施例中由第二AMF网元执行的步骤。收发模块1002，用于支持与终端设备等之间的通信，具体执行图5-图9B中由第二AMF网元执行的发送和/或接收的动作，例如支持第二AMF网元执行步骤605和步骤706A中的一个或多个步骤，和/或用于本文中所描述的技术的其他过程。处理模块1001可用于支持通信装置1000执行上述方法实施例中的处理动作，例如，支持第二AMF网元执行步骤604和步骤704A中的一个或多个步骤，和/或用于本文所描述的技术的其它过程。
在一种可能的实施方式中，当终端设备或接入网设备或第二AMF网元为芯片时，收发模块1002可以是接口、管脚或电路等。接口可用于输入待处理的数据至处理器，并可 以向外输出处理器的处理结果。具体实现中，接口可以是通用输入输出(general purpose input output，GPIO)接口，可以和多个***设备(如显示器(LCD)、摄像头(camara)、射频(radio frequency，RF)模块、天线等等)连接。接口通过总线与处理器相连。
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处理模块1001可以是处理器，该处理器可以执行存储模块存储的计算机执行指令，以使该芯片执行图5至图9B实施例涉及的方法。
进一步的，处理器可以包括控制器、运算器和寄存器。示例性的，控制器主要负责指令译码，并为指令对应的操作发出控制信号。运算器主要负责执行定点或浮点算数运算操作、移位操作以及逻辑操作等，也可以执行地址运算和转换。寄存器主要负责保存指令执行过程中临时存放的寄存器操作数和中间操作结果等。具体实现中，处理器的硬件架构可以是专用集成电路(application specific integrated circuits，ASIC)架构、无互锁管道阶段架构的微处理器(microprocessor without interlocked piped stages architecture，MIPS)架构、进阶精简指令集机器(advanced RISC machines，ARM)架构或者网络处理器(network processor，NP)架构等等。处理器可以是单核的，也可以是多核的。
该存储模块可以为该芯片内的存储模块，如寄存器、缓存等。存储模块也可以是位于芯片外部的存储模块，如只读存储器(Read Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(Random Access Memory，RAM)等。
需要说明的，处理器、接口各自对应的功能既可以通过硬件设计实现，也可以通过软件设计来实现，还可以通过软硬件结合的方式来实现，这里不作限制。
图11为本申请实施例提供的一种通信***。该通信***包括接入网设备和移动性管理网元。可选的，该通信***还可以包括终端设备。
可选的，接入网设备用于根据第二路由标识向第二移动性管理网元发送第一指示信息，第二路由标识用于寻址第二移动性管理网元；第一指示信息用于指示第一USIM和接入网设备的第一控制面连接与第二USIM和接入网设备的第二控制面连接相同；移动性管理网元，用于根据第一指示信息和第二USIM的签约信息，向接入网设备发送第二指示信息，第二指示信息用于指示允许第一控制面连接和第二控制面连接相同。
可选的，接入网设备还用于根据第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可选的，若移动性管理网元为第一移动性管理网元，接入网设备还用于根据第一路由标识向第一移动性管理网元发送第二NAS请求消息、第一指示信息以及以下一项或多项：第二USIM的标识或第二USIM的NGAP标识，第二USIM的NGAP标识是接入网设备为第二USIM分配的用于建立与第二移动性管理网元之间的NGAP信令连接的标识，第二NAS请求消息用于注册第一USIM，第三NAS请求消息用于注册第二USIM的，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元；若移动性管理网元为第二移动性管理网元，接入网设备还用于根据第二路由标识向第二移动性管理网元发送第三NAS请求消息、第一指示信息以及以下一项或多项：第一USIM的标识或第一USIM的NGAP标识，第一USIM的NGAP标识是接入网设备为第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
可选的，若移动性管理网元为第一移动性管理网元，接入网设备还用于根据第一路由标识向第一移动性管理网元发送第四NAS请求消息；若移动性管理网元为第二移动性管理网元，接入网设备还用于根据第二路由标识向第二移动性管理网元发送第五NAS请求 消息；第一指示信息为第一USIM的标识和第二USIM的标识，第四NAS请求消息包括第一指示信息，第五NAS请求消息包括第一指示信息，第四NAS请求消息用于请求注册第一USIM，第五NAS请求消息用于请求注册第二USIM，第一路由标识用于寻址第一移动性管理网元，第二路由标识用于寻址第二移动性管理网元。
可选的，若移动性管理网元为第一移动性管理网元，第一移动性管理网元还用于向接入网设备发送第三指示信息，第三指示信息用于指示第一移动性管理网元允许第一USIM与第二USIM共用同一控制面连接；若移动性管理网元为第二移动性管理网元，第二移动性管理网元还用于向接入网设备发送第二指示信息，第二指示信息用于指示第二移动性管理网元允许第二USIM与第一USIM共用同一控制面连接；接入网设备还用于根据第三指示信息和第二指示信息，将第一USIM的第一上下文信息与第二USIM的第一上下文信息关联。
可选的，移动性管理网元还用于根据第一指示信息和第二USIM的签约信息确定允许第一USIM与第二USIM共用同一控制面连接。
可选的，移动性管理网元用于根据第一指示信息和第二USIM的签约信息将第一USIM的标识和/或第一USIM的NGAP标识与第二USIM的第二上下文信息关联。
图12为本申请实施例提供的一种简化的终端设备的结构示意图。便于理解和图示方便，图12中，终端设备以手机作为例子。如图12所示，终端设备包括至少一个处理器，还可以包括射频电路、天线以及输入输出装置。其中，处理器可用于对通信协议以及通信数据进行处理，还可以用于对终端设备进行控制，执行软件程序，处理软件程序的数据等。该终端设备还可以包括存储器，存储器主要用于存储软件程序和数据，这些涉及的程序可以在该通信装置出厂时即装载再存储器中，也可以在后期需要的时候再装载入存储器。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号，且天线为本申请实施例提供的天线。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图12中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的接收单元和发送单元(也可以统称为收发单元)，将具有处理功能的处理器视为终端设备的处理单元。如图12所示，终端设备包括接收模块31、处理模块32和发送模块33。接收模块31也可以称为接收器、接收机、接收电路等，发送模块33也可以称为发送器、发射器、发射机、发射电路等。处理模块32也可以称为处理器、处理单板、处理装置等。
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例如，处理模块32用于执行图5-图9B所示任一实施例中终端设备的功能。
图13为本申请实施例提供的一种简化的接入网设备的结构示意图。接入网设备包括 射频信号收发及转换部分以及42部分，该射频信号收发及转换部分又包括接收模块41部分和发送模块43部分(也可以统称为收发模块)。射频信号收发及转换部分主要用于射频信号的收发以及射频信号与基带信号的转换；42部分主要用于基带处理，对接入网设备进行控制等。接收模块41也可以称为接收器、接收机、接收电路等，发送模块43也可以称为发送器、发射器、发射机、发射电路等。42部分通常是接入网设备的控制中心，通常可以称为处理模块，用于控制接入网设备执行上述图5-图9中关于终端设备或接入网设备所执行的步骤。具体可参见上述相关部分的描述。
42部分可以包括一个或多个单板，每个单板可以包括一个或多个处理器和一个或多个存储器，处理器用于读取和执行存储器中的程序以实现基带处理功能以及对接入网设备的控制。若存在多个单板，各个单板之间可以互联以增加处理能力。作为一中可选的实施方式，也可以是多个单板共用一个或多个处理器，或者是多个单板共用一个或多个存储器，或者是多个单板同时共用一个或多个处理器。
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例如，针对于接入网设备，发送模块43用于执行图5-图9B所示任一实施例中接入网设备的功能。
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本申请实施例还提供一种通信装置，包括处理器、存储器、输入接口和输出接口，输入接口用于接收来自第一设备之外的其它通信装置的信息，输出接口用于向第一设备之外的其它通信装置输出信息，处理器调用存储器中存储的计算机程序实现如图5-图9B所示任一实施例。
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本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序，当计算机程序被运行时，实现如图5-图9B所示任一实施例。
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本申请实施例还提供一种计算机程序产品，当计算机读取并执行计算机程序产品时，使得计算机执行实现如图5-图9B所示任一实施例。
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
上述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，云服务器，或者网络设备等)执行本申请各个实施例上述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (38)

  1. 一种网络连接的方法，其特征在于，所述方法应用于通信装置，所述通信装置包括第一通用用户识别模块USIM和第二USIM，所述方法包括：
    从接入网设备接收网络标识，所述网络标识用于标识所述接入网设备支持的一个或多个网络；
    在所述第一USIM和所述第二USIM属于所述一个或多个网络的情况下，发送第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述第一USIM和所述接入网设备的第一控制面连接与所述第二USIM和所述接入网设备的第二控制面连接相同。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    确定所述第一USIM和所述第二USIM属于所述一个或多个网络。
  3. 根据权利要求1或2所述的方法，其特征在于，所述发送第一消息，包括：
    通过所述第一控制面连接发送所述第一消息。
  4. 根据权利要求1-3任意一项所述的方法，其特征在于，所述第一消息中还包括第二路由标识，所述第二路由标识用于寻址第二移动性管理网元。
  5. 根据权利要求1-2任意一项所述的方法，其特征在于，所述发送第一消息，包括：
    向所述接入网设备发送第一消息，所述第一消息包括：第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，所述第二NAS请求消息用于请求注册第一USIM，所述第三NAS请求消息用于请求注册第二USIM，所述第一路由标识用于寻址第一移动性管理网元，所述第二路由标识用于寻址第二移动性管理网元。
  6. 根据权利要求1-2任意一项所述的方法，其特征在于，所述第一指示信息为第一USIM的标识和第二USIM的标识，所述发送第一消息，包括：
    向所述接入网设备发送第一消息，所述第一消息包括：第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识；所述第四NAS请求消息包括所述第一指示信息，所述第五NAS请求消息包括所述第一指示信息，所述第四NAS请求消息用于请求注册所述第一USIM，所述第五NAS请求消息用于请求注册所述第二USIM，所述第一路由标识用于寻址第一移动性管理网元，所述第二路由标识用于寻址第二移动性管理网元。
  7. 根据权利要求1-6任意一项所述的方法，其特征在于，所述第一控制面连接和所述第二控制面连接为无线资源控制RRC连接。
  8. 根据权利要求1-7任意一项所述的方法，其特征在于，所述第一消息用于建立所述第二控制面连接。
  9. 根据权利要求8所述的方法，其特征在于，所述第一消息还用于建立所述第一控制面连接。
  10. 一种网络连接的方法，其特征在于，所述方法应用于接入网设备，所述方法包括：
    向终端设备发送网络标识，所述网络标识用于标识所述接入网设备支持的一个或多个网络，所述终端设备包括第一USIM和第二USIM，所述第一USIM和所述第二USIM属于所述一个或多个网络；
    从所述终端设备接收第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述第一USIM和所述接入网设备的第一控制面连接与所述第二USIM和所述接 入网设备的第二控制面连接相同。
  11. 根据权利要求10所述的方法，其特征在于，所述从所述终端设备接收第一消息，包括：
    通过所述第一控制面连接从所述终端设备接收所述第一消息。
  12. 根据权利要求10或11所述的方法，其特征在于，所述方法还包括：
    根据所述第一指示信息将所述第一USIM的第一上下文信息与所述第二USIM的第一上下文信息关联。
  13. 根据权利要求10或11所述的方法，其特征在于，所述方法还包括：
    所述第一消息中还包括第二路由标识，所述第二路由标识用于寻址第二移动性管理网元；
    根据所述第二路由标识向所述第二移动性管理网元发送所述第一指示信息以及以下一项或多项：所述第一USIM的标识或所述第一USIM的下一代应用协议NGAP标识，所述第一USIM的NGAP标识是所述接入网设备为所述第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：
    从所述第二移动性管理网元接收第二指示信息，所述第二指示信息用于指示所述第二移动性管理网元允许所述第二USIM与所述第一USIM共用同一控制面连接；
    根据从所述第二指示信息，将所述第一USIM的第一上下文信息与所述第二USIM的第一上下文信息关联。
  15. 根据权利要求14所述的方法，其特征在于，所述第二指示信息为所述第一USIM的标识和/或所述第一USIM的NGAP标识。
  16. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    所述第一消息还包括：第二NAS请求消息、第三NAS请求消息、第一路由标识和第二路由标识，所述第二NAS请求消息用于注册第一USIM，所述第三NAS请求消息用于注册第二USIM的，所述第一路由标识用于寻址第一移动性管理网元，所述第二路由标识用于寻址第二移动性管理网元；
    根据所述第一路由标识向所述第一移动性管理网元发送所述第二NAS请求消息、所述第一指示信息以及以下一项或多项：所述第二USIM的标识或所述第二USIM的NGAP标识，所述第二USIM的NGAP标识是所述接入网设备为所述第二USIM分配的用于建立与所述第二移动性管理网元之间的NGAP信令连接的标识；
    根据所述第二路由标识向所述第二移动性管理网元发送所述第三NAS请求消息、所述第一指示信息以及以下一项或多项：所述第一USIM的标识或所述第一USIM的NGAP标识，所述第一USIM的NGAP标识是所述接入网设备为所述第一USIM分配的用于建立与第一移动性管理网元之间的NGAP信令连接的标识。
  17. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    所述第一指示信息为第一USIM的标识和第二USIM的标识，所述第一消息，包括：第四NAS请求消息、第五NAS请求消息、第一路由标识和第二路由标识；所述第四NAS请求消息包括所述第一指示信息，所述第五NAS请求消息包括所述第一指示信息，所述第四NAS请求消息用于请求注册所述第一USIM，所述第五NAS请求消息用于请求注册所述第二USIM，所述第一路由标识用于寻址第一移动性管理网元，所述第二路由标识用 于寻址第二移动性管理网元；
    根据所述第一路由标识向所述第一移动性管理网元发送所述第四NAS请求消息；
    根据所述第二路由标识向所述第二移动性管理网元发送所述第五NAS请求消息。
  18. 根据权利要求16或17所述的方法，其特征在于，所述方法还包括：
    从所述第一移动性管理网元接收第三指示信息，所述第三指示信息用于指示所述第一移动性管理网元允许所述第一USIM与所述第二USIM共用同一控制面连接；
    从所述第二移动性管理网元接收第二指示信息，所述第二指示信息用于指示所述第二移动性管理网元允许所述第二USIM与所述第一USIM共用同一控制面连接；
    根据所述第三指示信息和所述第二指示信息，将所述第一USIM的第一上下文信息与所述第二USIM的第一上下文信息关联。
  19. 根据权利要求11-18任意一项所述的方法，其特征在于，所述方法还包括：
    从所述终端设备接收第一凭证信息，所述第一凭证信息用于指示第一网络允许第一USIM与所述第二USIM共用同一控制面连接，所述第一USIM属于所述第一网络；
    根据所述第一凭证信息，将所述第一USIM的第一上下文信息与所述第二USIM的第一上下文信息关联。
  20. 根据权利要求10-19任意一项所述的方法，其特征在于，所述第一控制面连接和所述第二控制面连接为无线资源控制RRC连接。
  21. 根据权利要求10-20任意一项所述的方法，其特征在于，所述第一消息用于建立所述第二控制面连接。
  22. 根据权利要求21所述的方法，其特征在于，所述第一消息还用于建立所述第一控制面连接。
  23. 一种网络连接的方法，其特征在于，所述方法应用于移动性管理网元，所述方法包括：
    接收第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示第一USIM和所述接入网设备的第一控制面连接与第二USIM和所述接入网设备的第二控制面连接相同；
    根据所述第一指示信息和所述第二USIM的签约信息，向所述接入网设备发送第二指示信息，所述第二指示信息用于指示允许所述第一控制面连接和所述第二控制面连接相同。
  24. 根据权利要求23所述的方法，其特征在于，所述第二USIM的签约信息用于指示允许所述第一USIM与所述第二USIM共用同一控制面连接。
  25. 根据权利要求23-24任意一项所述的方法，其特征在于，所述根据所述第一指示信息和所述第二USIM的签约信息，向所述接入网设备发送第二指示信息，包括：
    根据所述第一指示信息和所述第二USIM的签约信息确定允许所述第一USIM与所述第二USIM共用同一控制面连接；
    向所述接入网设备发送所述第二指示信息。
  26. 根据权利要求25所述的方法，其特征在于，所述第二指示信息包括以下一项或多项：所述第一USIM的标识或所述第一USIM的NGAP标识；
    所述第一USIM的NGAP标识是所述接入网设备为所述第一USIM分配的用于建立 与第一移动性管理网元之间的NGAP信令连接的标识，所述第一移动性管理网元为服务于所述第一USIM的移动性管理网元。
  27. 根据权利要求26所述的方法，其特征在于，所述方法还包括：
    根据所述第一指示信息和所述第二USIM的签约信息将所述第一USIM的标识和/或所述第一USIM的NGAP标识与所述第二USIM的第二上下文信息关联。
  28. 根据权利要求23-27任意一项所述的方法，其特征在于，所述方法还包括：
    向终端设备发送第二凭证信息，所述第二凭证信息用于指示第二网络允许所述第二USIM与所述第一USIM共用同一控制面连接，所述第二USIM属于所述第二网络。
  29. 根据权利要求23-28任意一项所述的方法，其特征在于，所述方法还包括：
    从所述终端设备接收第一凭证信息，所述第一凭证信息用于指示第一网络允许所述第一USIM与所述第二USIM共用同一控制面连接，所述第一USIM属于所述第一网络；
    将所述第一凭证信息与所述第二USIM的第二上下文信息关联。
  30. 根据权利要求23-29任意一项所述的方法，其特征在于，所述第一控制面连接和所述第二控制面连接为无线资源控制RRC连接。
  31. 根据权利要求23-30任意一项所述的方法，其特征在于，所述第一消息用于建立所述第二控制面连接。
  32. 根据权利要求31所述的方法，其特征在于，所述第一消息还用于建立所述第一控制面连接。
  33. 一种通信装置，其特征在于，包括处理器，处理器调用存储器中存储的计算机程序实现如权利要求1-9任意一项的方法。
  34. 一种通信装置，其特征在于，包括处理器，处理器调用存储器中存储的计算机程序实现如权利要求10-22任意一项的方法。
  35. 一种通信装置，其特征在于，包括处理器，处理器调用存储器中存储的计算机程序实现如权利要求23-32任意一项的方法。
  36. 一种计算机可读存储介质，其特征在于，计算机可读存储介质中存储有计算机程序，当计算机程序被运行时，实现如权利要求1-9任意一项的方法。
  37. 一种计算机可读存储介质，其特征在于，计算机可读存储介质中存储有计算机程序，当计算机程序被运行时，实现如权利要求10-22任意一项的方法。
  38. 一种计算机可读存储介质，其特征在于，计算机可读存储介质中存储有计算机程序，当计算机程序被运行时，实现如权利要求23-32任意一项的方法。
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