WO2021208741A1 - Procédé et appareil de communication pour une carte à multiples modules d'identification d'abonné (sim) - Google Patents

Procédé et appareil de communication pour une carte à multiples modules d'identification d'abonné (sim) Download PDF

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Publication number
WO2021208741A1
WO2021208741A1 PCT/CN2021/084582 CN2021084582W WO2021208741A1 WO 2021208741 A1 WO2021208741 A1 WO 2021208741A1 CN 2021084582 W CN2021084582 W CN 2021084582W WO 2021208741 A1 WO2021208741 A1 WO 2021208741A1
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WO
WIPO (PCT)
Prior art keywords
sim card
access network
network device
message
information
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PCT/CN2021/084582
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English (en)
Chinese (zh)
Inventor
金辉
才宇
姚楚婷
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华为技术有限公司
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Publication of WO2021208741A1 publication Critical patent/WO2021208741A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H04W8/205—Transfer to or from user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • This application relates to communication technology, and in particular to a communication method and device for a multi-user identification module SIM card.
  • a dual-card terminal device refers to a terminal device equipped with two phone cards at the same time.
  • the phone card can be, but not limited to, a subscriber identification module (SIM) card, a universal subscriber identity module (USIM) , Embedded SIM (embedded SIM, eSIM) card or soft SIM card, etc.
  • SIM subscriber identification module
  • USIM universal subscriber identity module
  • Embedded SIM embedded SIM
  • eSIM embedded SIM
  • soft SIM soft SIM
  • the base station providing the service requests a time slot (gap), during which the base station does not perform SIM1 scheduling and data transmission and reception, so that the dual-card terminal device can access the SIM2 network in the time slot (gap), and respond to the network Paging of SIM2.
  • the dual-card terminal device transfers to the SIM2 network to perform services in a time slot (gap), due to the movement of the dual-card terminal device, for SIM1, cell or base station changes will occur.
  • the registration process includes the dual-card terminal device sending a registration request message to the new base station through SIM1.
  • the new base station selects the AMF according to the identity of SIM1, and sends a registration request message to the new AMF.
  • the new AMF determines whether SIM1 is allowed to register in the new base station. If allowed, it executes the registration process of SIM1 in the new base station, resulting in the dual card
  • the time delay for the terminal device to enter the connected state of SIM1 becomes longer.
  • the present application provides a communication method and device for a SIM card of a multi-user identification module to reduce communication delay.
  • the present application provides a communication method for a multi-user identification module SIM card.
  • the method can be applied to a terminal device.
  • the terminal device includes a first SIM card and a second SIM card.
  • the method includes: determining the first SIM card.
  • Send a first message to the second access network device the first message is used to re-establish or restore the radio resource control RRC connection of the first SIM card, and the first message includes first information, second information, and third information
  • the first information is used to indicate that a cell change occurs in the time slot
  • the second information is used to identify the first access network device
  • the third information is used to identify the first SIM card.
  • a second message sent by the second access network device is received, where the second message is used to indicate that the RRC connection of the first SIM card is re-established or restored.
  • the cell where the first SIM card resides has changed within the time slot in which the second SIM card is performing the service, and the service is executed by the second SIM card or the time slot ends, and the signal is sent to the second access network device.
  • the first information, the second information, and the third information are used to initiate the RRC connection re-establishment or restoration of the first SIM card, so as to quickly reestablish or restore the RRC connection of the first SIM card, thereby reducing the connection of terminal equipment into the first SIM card
  • the time required for the state is reduced, and the communication delay is reduced to meet the low-latency data transmission requirements.
  • the first message is an RRC connection re-establishment message
  • the first information is carried in the reason field of the RRC connection re-establishment message.
  • the first information is transmitted through the reason field of the RRC connection re-establishment message, so that the second access network device knows that the cell of the first SIM card changes in the time slot, so that the second access network device can quickly rebuild or Restore the RRC connection of the first SIM card.
  • the second information includes at least one of the following: an evolved universal terrestrial radio access network E-UTRAN cell global identifier or a physical cell identifier PCI of the first access network device.
  • the E-UTRAN cell global identifier or PCI of the first access network device is sent to the second access network device, so that the second access network device knows the original access network device of the first SIM card ( The first access network device), so that the second access network device obtains the first context of the first SIM card from the first access network device, and quickly rebuilds or restores the RRC connection of the first SIM card.
  • the method may further include: after receiving the second message sent by the second access network device, receiving the first message generated in the time slot sent by the second access network device. Business data of the SIM card.
  • the service data of the first SIM card generated in the time slot saved by the first access network device is sent to the terminal device through the second access network device, which can avoid cell changes and SIM card switching.
  • Data loss improves communication reliability to meet high-reliability data transmission requirements.
  • the service data of the first SIM card is the service data of the first SIM card generated in the time slot that is not sent by the first access network device to the terminal device.
  • the time slot is when the terminal device receives the paging message of the second SIM card before the second SIM card accesses the communication network, the first SIM card gives the second SIM card The card is applied for.
  • an embodiment of the present application provides a communication method for a multi-user identity recognition module SIM card, which is applied to a second access network device.
  • the method may include: receiving a first message sent by a terminal device, and the first message is used To re-establish or restore the radio resource control RRC connection of the first SIM card of the terminal device, the first message includes first information, second information, and third information, and the first information is used to indicate that a cell change occurs in a time slot
  • the time slot is used for the second SIM card to access the communication network, the second information is used to identify the first access network device, and the third information is used to identify the first SIM card.
  • Send a second message to the first access network device the second message is used to request to obtain the first context of the first SIM card, and the first context is allocated by the first access network device to the first SIM card of.
  • Receiving the first context sent by the first access network device A second context is allocated to the first SIM card through the first context, and an RRC connection between the first SIM and the second access network device is established through the second context.
  • the first message is an RRC rebuild message
  • the first information is carried in the reason field of the RRC rebuild message.
  • the second information includes at least one of the following: an evolved universal terrestrial radio access network E-UTRAN cell global identifier or a physical cell identifier PCI of the first access network device.
  • the second message is a radio link failure indication message
  • the radio link failure indication message carries the first information and the third information.
  • the method further includes: determining whether the first information is carried in the first message, and when the first information is carried in the first message, executing sending the first information to the first access network device The steps of the radio link failure indication message.
  • the first context is carried in the handover request message.
  • the method further includes: after the second access network device establishes an RRC connection with the first SIM card, receiving the first access network device sent by the first access network device generated in the time slot Business data of the first SIM card. Send the service data of the first SIM card generated in the time slot to the terminal device.
  • the second message is a context request message
  • the context request message carries the third information
  • the first context is carried in a context response message.
  • the method further includes: sending a data forwarding path indication message to the first access network device, where the data forwarding path indication message is used to instruct the first access network device to send data within the time slot Generated business data of the first SIM card. Receiving the service data of the first SIM card generated in the time slot sent by the first access network device. Send the service data of the first SIM card generated in the time slot to the terminal device.
  • the data forwarding path indication message includes the third information and a data receiving address, and the data receiving address is allocated by the second access network device for receiving the second generated in the time slot.
  • the service data of the first SIM card is the service data of the first SIM card generated in the time slot that is not sent by the first access network device to the terminal device.
  • an embodiment of the present application provides a communication method for a multi-user identification module SIM card, which is applied to a first access network device, and the method includes: receiving a second message sent by a second access network device.
  • the second message is used to request to obtain the first context of the first SIM card of the terminal device, where the first context is allocated to the first SIM card by the first access network device. Sending the first context to the second access network device.
  • the second message is a radio link failure indication message
  • the radio link failure indication message carries first information and third information
  • the first information is used to indicate that a cell change occurs in a time slot
  • the time slot is used for the second SIM card of the terminal device to access the communication network
  • the third information is used to identify the first SIM card.
  • the first context is carried in a handover request message, and the first context is used by the second access network device to allocate a second context to the first SIM card according to the first context.
  • the method further includes: sending the service data of the first SIM card generated in the time slot to the second access network device.
  • the second message is a context request message
  • the context request message carries third information.
  • the third information is used to identify the first SIM card.
  • the first context is carried in the context response message.
  • a context is used by the second access network device to allocate a second context to the first SIM card according to the first context.
  • the method further includes: receiving a data forwarding path indication message sent by the second access network device, where the data forwarding path indication message is used to instruct to send the service of the first SIM card generated in the time slot Data, this time slot is used for the second SIM card of the terminal device to access the communication network. Send the service data of the first SIM card generated in the time slot to the second access network device.
  • the data forwarding path indication message includes the third information and a data receiving address, and the data receiving address is allocated by the second access network device for receiving the first SIM generated in the time slot.
  • the address of the business data of the card is allocated by the second access network device for receiving the first SIM generated in the time slot.
  • the service data of the first SIM card is service data of the first SIM card generated in a time slot that the first access network device does not send to the terminal device.
  • an embodiment of the present application provides a communication method for a multi-user identity recognition module SIM card, which is applied to a terminal device.
  • the terminal device includes a first SIM card and a second SIM card.
  • the method may include: determining the second SIM card.
  • a cell where a SIM card resides in a time slot changes, and the first access network device is changed to a second access network device, and the time slot is used for the second SIM card to access the communication network.
  • the second access network device receives the service of the first SIM card generated in the time slot sent by the first access network device data.
  • an embodiment of the present application provides a communication method of a multi-user identity recognition module SIM card, which is applied to a second access network device.
  • the method may include: After the SIM card establishes the RRC connection, it receives the service data of the first SIM card generated in the time slot sent by the first access network device. The time slot is used for the second SIM card of the terminal device to access the communication network. The cell where the first SIM card resides in the slot changes, and the first access network device is changed to the second access network device. Send the service data of the first SIM card generated in the time slot to the terminal device.
  • the embodiments of the present application provide a communication method for a multi-user identity recognition module SIM card, which is applied to a first access network device, and the method may include: sending to a second access network device the information generated in the time slot The service data of the first SIM card, the time slot is used for the second SIM card of the terminal device to access the communication network.
  • the present application provides a communication device.
  • the communication device may be a terminal device or a chip or a system on a chip in the terminal device, and may also be a terminal device for implementing the first aspect or any one of the first aspects above.
  • Functional modules of possible design methods may also include a first SIM card and a second SIM card.
  • the communication device can implement the functions performed by the terminal device in the foregoing first aspect or each possible design of the foregoing first aspect, and the functions may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may include: a transceiver module and a processing module.
  • the processing module is used to determine that the cell where the first SIM card resides in the time slot has changed, and the time slot is used for the second SIM card to access the communication network.
  • the processing module is further configured to send a first message to the second access network device through the transceiver module, the first message is used to re-establish or restore the radio resource control RRC connection of the first SIM card, and the first message includes the first Information, second information, and third information, the first information is used to indicate that a cell change occurs in the time slot, the second information is used to identify the first access network device, and the third information is used to identify the first SIM card.
  • the transceiver module is further configured to receive a second message sent by the second access network device, where the second message is used to indicate that the RRC connection of the first SIM card is re-established or restored.
  • the first message is an RRC connection re-establishment message
  • the first information is carried in the reason field of the RRC connection re-establishment message.
  • the second information includes at least one of the following: an evolved universal terrestrial radio access network E-UTRAN cell global identifier or a physical cell identifier PCI of the first access network device.
  • the transceiver module is further configured to receive the first message generated in the time slot sent by the second access network device after receiving the second message sent by the second access network device.
  • Business data of the SIM card is further configured to receive the first message generated in the time slot sent by the second access network device after receiving the second message sent by the second access network device.
  • the service data of the first SIM card is the service data of the first SIM card generated in the time slot that is not sent by the first access network device to the terminal device.
  • the time slot is when the terminal device receives the paging message of the second SIM card before the second SIM card accesses the communication network, the first SIM card gives the second SIM card The card is applied for.
  • the present application provides a communication device.
  • the communication device may be a second access network device or a chip or a system on a chip in the second access network device, and may also be a second access network device for implementing A functional module of the above-mentioned second aspect or any possible design method of the above-mentioned second aspect.
  • the communication device can implement the functions performed by the second access network device in the above-mentioned second aspect or each possible design of the above-mentioned second aspect, and the functions may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may include: a transceiver module and a processing module.
  • the transceiver module is configured to receive a first message sent by a terminal device.
  • the first message is used to re-establish or restore the radio resource control RRC connection of the first SIM card of the terminal device.
  • the first message includes the first information and the first message.
  • Second information and third information the first information is used to indicate that a cell change occurs in the time slot, the time slot is used for the second SIM card to access the communication network, and the second information is used to identify the first access network Device, the third information is used to identify the first SIM card.
  • the processing module is configured to send a second message to the first access network device through the transceiver module, the second message is used to request to obtain the first context of the first SIM card, and the first context is the first access
  • the network device is allocated to the first SIM card.
  • the transceiver module is also configured to receive the first context sent by the first access network device. A second context is allocated to the first SIM card through the first context, and an RRC connection between the first SIM and the second access network
  • the first message is an RRC reestablishment message
  • the first information is carried in the reason field of the RRC reestablishment message.
  • the second information includes at least one of the following: an evolved universal terrestrial radio access network E-UTRAN cell global identifier or a physical cell identifier PCI of the first access network device.
  • the second message is a radio link failure indication message
  • the radio link failure indication message carries the first information and the third information.
  • the processing module is further configured to determine whether the first message carries the first information, and when the first message carries the first information, perform access to the first message through the transceiver module A step in which the network device sends the wireless link failure indication message.
  • the first context is carried in the handover request message.
  • the transceiver module is further configured to receive the data generated in the time slot sent by the first access network device after the RRC connection between the second access network device and the first SIM card is established. Service data of the first SIM card. Send the service data of the first SIM card generated in the time slot to the terminal device.
  • the second message is a context request message
  • the context request message carries the third information
  • the first context is carried in a context response message.
  • the processing module is further configured to send a data forwarding path indication message to the first access network device through the transceiver module, and the data forwarding path indication message is used to instruct the first access network device to send the The service data of the first SIM card generated in this time slot.
  • the transceiver module is also configured to receive service data of the first SIM card generated in the time slot sent by the first access network device.
  • the transceiver module is also used to send the service data of the first SIM card generated in the time slot to the terminal device.
  • the data forwarding path indication message includes the third information and a data receiving address, and the data receiving address is allocated by the second access network device for receiving the second generated in the time slot.
  • the service data of the first SIM card is the service data of the first SIM card generated in the time slot that is not sent by the first access network device to the terminal device.
  • the present application provides a communication device.
  • the communication device may be a first access network device or a chip or a system on a chip in the first access network device, and may also be a first access network device for implementing A functional module of the third aspect or any possible design method of the third aspect.
  • the communication device can implement the functions performed by the first access network device in the foregoing third aspect or each possible design of the foregoing third aspect, and the functions may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may include: a transceiver module and a processing module.
  • the transceiver module is configured to receive a second message sent by a second access network device, and the second message is used to request to obtain a first context of the first SIM card of the terminal device, and the first context is the first access network
  • the device is assigned to the first SIM card.
  • the processing module is configured to send the first context to the second access network device through the transceiver module.
  • the second message is a radio link failure indication message
  • the radio link failure indication message carries first information and third information
  • the first information is used to indicate that a cell change occurs in a time slot
  • the time slot is used for the second SIM card of the terminal device to access the communication network
  • the third information is used to identify the first SIM card.
  • the first context is carried in a handover request message, and the first context is used by the second access network device to allocate a second context to the first SIM card according to the first context.
  • the processing module is further configured to send the service data of the first SIM card generated in the time slot to the second access network device through the transceiver module.
  • the second message is a context request message
  • the context request message carries third information.
  • the third information is used to identify the first SIM card.
  • the first context is carried in the context response message.
  • a context is used by the second access network device to allocate a second context to the first SIM card according to the first context.
  • the transceiver module is also used to receive a data forwarding path indication message sent by the second access network device, where the data forwarding path indication message is used to instruct to send the first SIM card generated in the time slot.
  • Service data This time slot is used for the second SIM card of the terminal device to access the communication network.
  • the processing module is used to send the service data of the first SIM card generated in the time slot to the second access network device through the transceiver module.
  • the data forwarding path indication message includes the third information and a data receiving address, and the data receiving address is allocated by the second access network device for receiving the first SIM generated in the time slot.
  • the address of the business data of the card is allocated by the second access network device for receiving the first SIM generated in the time slot.
  • the service data of the first SIM card is service data of the first SIM card generated in a time slot that the first access network device does not send to the terminal device.
  • the present application provides a communication device.
  • the communication device may be a terminal device or a chip or a system on a chip in the terminal device, and may also be a terminal device for implementing the first aspect or any one of the first aspects.
  • Functional modules of possible design methods may also include a first SIM card and a second SIM card.
  • the communication device can implement the functions performed by the terminal device in the fourth aspect, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may include: a transceiver module and a processing module.
  • the processing module is used to determine that the cell where the first SIM card resides in the time slot is changed from the first access network device to the second access network device, and the time slot is used for the second SIM card to access Into the communication network.
  • the processing module is further configured to receive, through the second access network device, the in-time slot sent by the first access network device after the RRC connection between the first SIM card and the second access network device is established through the transceiver module The generated service data of the first SIM card.
  • the present application provides a communication device, which may be a second access network device or a chip or a system on a chip in the second access network device, and may also be used in the second access network device A functional module that implements the foregoing second aspect or any possible design method of the foregoing second aspect.
  • the communication device can implement the functions performed by the second access network device in the above-mentioned second aspect or each possible design of the above-mentioned second aspect, and the functions may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may include: a transceiver module and a processing module.
  • the transceiver module is used to receive the service data of the first SIM card generated in the time slot sent by the first access network device after the RRC connection is established between the second access network device and the first SIM card of the terminal device, the The time slot is used for the second SIM card of the terminal device to access the communication network, and the cell where the first SIM card resides in the time slot changes, and the first access network device is changed to the second access network device.
  • the processing module is used to send the service data of the first SIM card generated in the time slot to the terminal device through the transceiver module.
  • the present application provides a communication device, which may be a first access network device or a chip or a system on a chip in the first access network device, and may also be used in the first access network device A functional module that implements the foregoing third aspect or any possible design method of the foregoing third aspect.
  • the communication device can implement the functions performed by the first access network device in the foregoing third aspect or each possible design of the foregoing third aspect, and the functions may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device may include: a transceiver module and a processing module.
  • the processing module is used to send the service data of the first SIM card generated in the time slot to the second access network device through the transceiver module, and the time slot is used for the second SIM card of the terminal device to access the communication network.
  • an embodiment of the present application provides a terminal device, including: a first SIM card and a second SIM card; one or more processors; a memory for storing one or more programs; when the one or Multiple programs are executed by the one or more processors, so that the one or more processors implement the method according to any one of the above-mentioned first aspects, or the one or more processors implement The method as described in the fourth aspect above.
  • an embodiment of the present application provides an access network device, including: one or more processors; a memory, used to store one or more programs; when the one or more programs are used by the one or more Executed by multiple processors, so that the one or more processors implement the method according to any one of the above-mentioned second aspect, or cause the one or more processors to implement the method according to the above-mentioned fifth aspect method.
  • an embodiment of the present application provides an access network device, including: one or more processors; a memory, used to store one or more programs; when the one or more programs are used by the one or more Execution by multiple processors, so that the one or more processors implement the method according to any one of the above-mentioned third aspects, or cause the one or more processors to implement the method according to the above-mentioned sixth aspect method.
  • an embodiment of the present application provides a computer-readable storage medium, including a computer program, which when executed on a computer, causes the computer to execute the method described in any one of the above-mentioned first aspects , Or, execute the method described in the fourth aspect above.
  • an embodiment of the present application provides a computer-readable storage medium, including a computer program, which when executed on a computer, causes the computer to execute the method described in any one of the above-mentioned second aspects , Or, execute the method described in the fifth aspect above.
  • an embodiment of the present application provides a computer-readable storage medium, including a computer program, which when executed on a computer, causes the computer to execute the method described in any one of the above third aspects , Or, execute the method described in the sixth aspect above.
  • an embodiment of the present application provides a communication system.
  • the communication system includes a first access network device and a second access network device.
  • the first access network device is used to execute the method described in any one of the foregoing third aspect
  • the second access network device is used to execute the method described in any one of the foregoing second aspect.
  • the first access network device is configured to execute the method described in the sixth aspect
  • the second access network device is configured to execute the method described in the fifth aspect.
  • the terminal device determines that the cell where the first SIM card resides has changed, and sends the first information and the second information to the access network device 2 through the first SIM card,
  • the access network device 2 determines that a cell change occurs in a time slot (gap) based on the first information and the second information, and the access network device 1 changes to the access network device 2, and then the access network device 2 changes to the access network device 2.
  • the network device 1 sends a second message, the second message is used to request the context of the first SIM card, and the access network device 1 feeds back the context of the first SIM card to the access network device 2, and the access network device 2 can follow
  • the context of the first SIM card rebuilds or restores the RRC connection of the first SIM card, thereby quickly reestablishing or restoring the RRC connection of the first SIM card, reducing communication delay, and meeting low-latency data transmission requirements.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the application
  • FIG. 2 is a schematic diagram of a partial structure of a terminal device according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of a communication system according to an embodiment of the application.
  • FIG. 4 is a flowchart of a multi-SIM card communication method according to an embodiment of the application.
  • FIG. 5 is a flowchart of another multi-SIM card communication method according to an embodiment of the application.
  • FIG. 6 is a flowchart of another multi-SIM card communication method according to an embodiment of the application.
  • FIG. 7 is a flowchart of another multi-SIM card communication method according to an embodiment of the application.
  • FIG. 8 is a schematic block diagram of a communication device 2000 according to an embodiment of the application.
  • FIG. 9 is a schematic block diagram of another communication device 2100 according to an embodiment of the application.
  • FIG. 10 is a schematic block diagram of another communication device 2200 according to an embodiment of the application.
  • FIG. 11 is a schematic block diagram of another communication device 2300 according to an embodiment of the application.
  • FIG. 12 is a schematic block diagram of another communication device 2400 according to an embodiment of the application.
  • FIG. 13 is a schematic block diagram of another communication device 2500 according to an embodiment of the application.
  • At least one (item) refers to one or more, and “multiple” refers to two or more.
  • “And/or” is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B , Where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the following at least one item (a) or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • At least one of a, b, or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, and c can be single or multiple.
  • the access network device involved in the embodiment of the present application is an access device that a terminal device accesses to a communication system in a wireless manner or a chip that can be set in an access network device.
  • Access network equipment can include any equipment between the core network and the user terminal, for example, gNB, radio network controller (RNC), evolved Node B (eNB), and 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) ), the access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP) in the wireless fidelity (WIFI) system, etc.
  • RNC radio network controller
  • eNB evolved Node B
  • Node B Node B
  • NB base station controller
  • BTS base transceiver
  • BBU baseband unit
  • DU distributed unit
  • the core network equipment involved in the embodiments of the present application includes network elements that perform core switching or call routing functions.
  • the core network equipment may include access and mobility management functions (AMF) and session management functions.
  • Network element session management function, SMF
  • mobility management entity Mobility Management Entity, MME
  • serving gateway Serving Gateway, SGW
  • PDN gateway PDN gateway
  • UPF user plane function
  • the terminal equipment involved in the embodiments of the present application refers to a communication device with a communication function.
  • it may be a wireless communication device, an Internet of Things (IoT) device, a wearable device or a vehicle-mounted device, a mobile terminal, a customer premise equipment (Customer Premise Equipment, CPE), etc.
  • the mobile terminal may also be referred to as user equipment (User Equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
  • the mobile terminal can be a smart phone, a cellular phone, a cordless phone, a tablet computer, a personal digital assistant (PDA) device, an IoT device with wireless communication function, a computing device, or other processing device connected to a wireless modem , In-vehicle equipment, wearable equipment, terminal equipment in 5G network or terminal equipment in future evolved PLMN network, etc.
  • PDA personal digital assistant
  • the terminal device involved in the embodiment of the present application is a dual-card terminal device, that is, any of the above-mentioned terminal devices that support the dual-card function.
  • the terminal device may include two or more communication units, and each communication unit may include a modem. In some embodiments, each communication unit may also include a radio frequency unit.
  • 2 is a schematic diagram of a partial structure of a terminal device according to an embodiment of the application.
  • the communication unit 1 of the terminal device includes a modem (modem) 1 and a radio frequency unit 1, and the communication unit 2 of the terminal device includes a modem (modem). ) 2 and radio frequency unit 2.
  • the communication unit 1 and communication unit 2 of the terminal equipment support the installation of SIM card 1 and SIM card 2.
  • SIM card 1 is connected to modem 1, modem 1 is connected to radio frequency unit 1, and radio frequency unit 1 is connected to receiving antenna 1;
  • SIM The card 2 is connected to a modem 2, a modem 2 is connected to a radio frequency unit 2, and the radio frequency unit 2 is connected to a receiving antenna 2.
  • the two communication units share the same transmitting antenna.
  • the communication process between the communication unit 1 of the terminal equipment and the access network equipment includes: a modem (modem) 1 obtains user identification and other information from the SIM card 1, and uses the information to establish communication with the access network equipment.
  • the modem (modem) 1 After generating the data, the radio frequency unit 1 sends the data to the access network equipment (such as base station) through the transmitting antenna.
  • the receiving antenna 1 receives the data from the access network equipment (such as base station) and sends it to the radio frequency unit 1.
  • Modem 1 which processes data.
  • the communication process between the communication unit 2 of the terminal device and the access network device is similar to the communication process between the communication unit 1 and the access network device, and will not be repeated here.
  • the two communication units share a transmission channel. At the same time, only one communication unit can occupy the transmission channel to send data.
  • the terminal device can optimize the communication process of the terminal device with multiple SIM cards and reduce the communication delay through the communication method of the multi-user identification module SIM card in the embodiment of the present application, so as to meet the low-latency data transmission requirements.
  • the specific implementation please refer to the explanation of the following examples.
  • the communication device supports the communication unit 1 and the communication unit 2, and the communication device is installed with the SIM card 1 and the SIM card 2 at the same time.
  • the SIM card involved in the embodiment of the present application may be a SIM card in other forms such as a USIM card, an eSIM card, or a soft SIM card, which is not limited in the embodiment of the present application.
  • FIG. 3 is a schematic diagram of a communication system according to an embodiment of the application.
  • the communication system may include a terminal device 1, an access network device 1, an access network device 2, a 4G core network ( 4GC) and 5G core network (5GC).
  • the terminal device 1 may be any of the above-mentioned terminal devices including multiple SIM cards
  • the access network device 1 and the access network device 2 may be any of the above-mentioned access network devices.
  • the 4GC may include MME, SGW, PGW, etc., where the MME is connected to the access network device 1.
  • the 5GC may include AMF, SMF, and UPF, where the AMF is connected to the access network device 2.
  • the access network equipment 1 and the access network equipment 2 may be any of the above-mentioned access network equipment.
  • the terminal device 1 includes two SIM cards as an example for illustration.
  • the multi-SIM card communication method of the present application can be used to optimize the multi-SIM card switching process and reduce the communication delay.
  • this embodiment uses two core networks as an example, and the embodiment of this application is not limited thereto.
  • the application scenario of the following embodiments of the present application is that the first SIM card (SIM card 1) of the terminal device 1 is in a connected state and communicates with the access network device 1. After that, the terminal device 1 The service is transferred from the first SIM card (SIM card 1) to the second SIM card (SIM card 2).
  • SIM card 2 the first SIM card (SIM card 2) Card 1)
  • a cell change occurs, that is, the access network device 1 is changed to the access network device 2.
  • the terminal device 1 needs to return to the first SIM card (SIM card 1) to perform services, and the terminal device 1 can download
  • the method of the foregoing embodiment quickly restores the connection between the SIM card 1 and the network, and reduces the communication delay.
  • the terminal device 1 is performing services through the second SIM card (SIM card 2), if the network still has service data sent to the first SIM card (SIM card 1), the access network device 1 performs the service data
  • the terminal device 1 can avoid the loss of the service data by using the method in the following embodiment.
  • the terminal device 1 uses the first SIM card (SIM card 1) to interact with the server of the application program 1 through the access network device 1, and the terminal device 1 displays corresponding information on the user interface of the application program 1. .
  • the terminal device 1 receives a paging message for the second SIM card (SIM card 2).
  • the terminal device 1 requests a time slot (gap) from the access network device 1 through the first SIM card (SIM card 1). In this time slot (gap), the service of the terminal device 1 is transferred from the first SIM card (SIM card 1) to the second SIM card (SIM card 2).
  • the terminal device 1 responds to the paging message through the second SIM card (SIM card 2) in the time slot (gap), establishes a connection with the access network device 3, and conducts a real-time call with the terminal device 2 through the access network device 3.
  • the terminal device 1 performs a service (real-time call) through the second SIM card (SIM card 2)
  • the cell corresponding to the mobile first SIM card (SIM card 1) has changed, that is, it is changed by the access network device 1.
  • the terminal device 1 returns to the first SIM card (SIM card 1) to execute the service (the aforementioned access application 1).
  • the above application 1 is used to provide ticket booking services, and the terminal device 1 detects a user's first operation, and the first operation is used to request to display the remaining ticket information from A to B.
  • the first operation may be The user clicks on the corresponding graphic component, and in response to the first operation, the terminal device 1 sends a page request to the server of the application program 1 through the first SIM card (SIM card 1) to receive the page information fed back by the server.
  • SIM card 1 SIM card 1
  • the page information includes For the remaining ticket information from A to B, the terminal device displays the remaining ticket information from A to B on the user interface of the application program 1.
  • the access network device 1 takes the time when the terminal device 1 responds to the paging message of the second SIM card (SIM card 2) after the page request is sent and before the page information fed back by the server is received as an example.
  • the terminal device 1 executes the service through the second SIM card (SIM card 2)
  • the access network device 1 saves the page information.
  • the terminal device 1 uses the first SIM card (SIM card 1) to initiate a registration process or a service request process on the access network device 2 to return to the first SIM.
  • the card (SIM card 1) performs the business (the aforementioned access application 1).
  • the method of the registration process or the service request process will cause the time delay for restoring the connection of the first SIM card (SIM card 1) to become longer, and the page information stored in the access network device 1 is lost.
  • the multi-SIM card communication method of the embodiment of the present application can quickly restore the connection of the first SIM card (SIM card 1), avoid performing the registration process or service request process, thereby reducing the time delay. See the explanation of Figure 4 below.
  • the multi-SIM card communication method of the embodiment of the present application can also avoid the loss of the page information.
  • the terminal device returns to the first SIM card (SIM card 1), it can receive the feedback from the server stored in the access network device 1.
  • Page information the page information includes the remaining ticket information from A to B.
  • the terminal device displays the remaining ticket information from A to B on the user interface of application 1, to avoid the loss of information on the page caused by application 1 failure Display the information requested by the user.
  • the embodiment of this application can correctly display the information requested by the user before the real-time call after the above-mentioned real-time call, without requiring the user to repeat the first operation, and improving the user experience.
  • Figure 5 or below. Explanation of Figure 6.
  • the method in this embodiment involves a terminal device, an access network device 1 and an access network device 2.
  • the first SIM of the terminal device in this embodiment Card for example, the above SIM card 1
  • the second SIM card for example, the above SIM card 2
  • the terminal device 1 briefly switches to the second SIM card (SIM card 2) after using the first SIM card (SIM card 1) to perform services
  • SIM card 2 the cell corresponding to the first SIM card changes, and the access network device 1 is changed to the access network device 2.
  • the embodiment of the application may The following method steps enable the terminal device 1 to quickly return to the first SIM card (SIM card 1) to perform services.
  • the method of this embodiment may include:
  • Step 101 The terminal device determines that the cell where the first SIM card resides has changed.
  • the terminal device determines the cell where the first SIM card resides, and changes from the cell of the access network device 1 to the cell of the access network device 2.
  • the specific implementation manner for determining the change of the cell where the first SIM card resides can be as follows: the terminal device performs radio link monitoring through the first SIM card (SIM card 1) in the above-mentioned time slot (gap), and when it is determined that the access network is When the radio link failure (RLF) of device 1 fails, the terminal device 1 receives the system information broadcast by the access network device 2 through the first SIM card (SIM card 1), and the system information includes the information of the access network device 2.
  • the cell identifier for example, the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) cell global identifier (ECGI) of the access network equipment 2, and the terminal equipment according to the original
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • ECGI cell global identifier
  • Step 102 The terminal device sends a first message to the access network device 2 through the first SIM card, where the first message is used to re-establish or restore the RRC connection of the first SIM card.
  • the access network device 2 receives the first message sent by the terminal device.
  • the first message is used to re-establish or restore the radio resource control (Radio Resource Control, RRC) connection of the first SIM card (for example, the aforementioned SIM card 1).
  • RRC Radio Resource Control
  • the first message may be an RRC connection re-establishment message or an RRC connection resume (resume) message.
  • the first message may include first information and second information.
  • the access network device 2 receives the first message sent by the terminal device.
  • the terminal device may send the first information and the second information to the access network device 2 respectively. That is, the first information and the second information can be carried in the same message and sent to the access network device 2, or can be carried in different messages and sent to the access network device 2, which is not limited in the embodiment of the present invention.
  • the first information is used to indicate that a cell change occurs in a time slot (gap), and the first information can indicate to the access network device 2 the reason for reestablishing the radio resource control (Radio Resource Control, RRC) connection of the first SIM card That is, in the process of using the second SIM card for communication in the aforementioned time slot (gap), a cell change occurs due to the movement of the terminal device 1, so that the access network device 1 initiates a handover process according to the first information.
  • RRC Radio Resource Control
  • the first information may indicate that mobility is performed in a time slot (gap) (mobility during gap), for example: the set value (new value) in the cause field in the RRC connection re-establishment message is notified to the terminal
  • the reason for the device sending the message to the access network device 2 and the first information may be a newly added cause value in the cause field.
  • the cause field can be any length, for example, 1 bit, 2 bits, or 3 bits. Take the cause field of 3 bits as an example.
  • 010 means mobility during the time slot (gap).
  • the access network device 2 determines that it is in time. A cell change occurs in the gap to quickly restore the RRC connection of the first SIM card through the following steps.
  • the second information is used to identify the access network device 1, that is, to identify the original base station.
  • the second information can be any information used to identify the access network device 1, for example, the E-UTRAN cell global identifier of the original cell (E-UTRAN cell global identifier, ECGI), physical cell identifier (physical cell identifier, PCI) of the original cell, etc., or any combination thereof.
  • the terminal device may also send third information to the access network device 2 in step 102.
  • the third information is used to identify the first SIM card of the terminal device.
  • the third information may be any information used to identify the first SIM card, for example, the wireless network of the cell allocated by the access network device 1 to the first SIM card.
  • Temporary identifier Cell-Radio Network Temporary Identifier, C-RNTI
  • IMSI International Mobile Subscriber Identity
  • the foregoing first information, second information, and third information may be carried in the first message to re-establish or restore the radio resource control (Radio Resource Control, RRC) connection of the first SIM card (SIM card 1).
  • RRC Radio Resource Control
  • the terminal device determines through step 101 that the cell where the first SIM card resides has changed, and when the first SIM card of the terminal device is in the idle state, the terminal device is in the idle state.
  • the first SIM card After the time slot (gap) ends or after the second SIM card is switched to the first SIM card in the time slot (gap), the first SIM card sends an RRC connection re-establishment (re-establishment) message to the access network device 2
  • the RRC connection re-establishment (re-establishment) message carries the above-mentioned first information and second information, or carries the first information, the second information, and the third information.
  • the RRC connection re-establishment (re-establishment) message includes one or more of the following four fields, which are the cause field, the ECGI of the original cell, and the access network device 1 to the first SIM card.
  • the terminal device determines through step 101 that the cell where the first SIM card resides has changed, and when the first SIM card of the terminal device is in the inactive state, the terminal device is in the time After the gap ends, an RRC connection resume (resume) message is sent to the access network device 2 through the first SIM card.
  • the RRC connection resume (resume) message carries the first information and the second information, or carries the first information. Information, second information, and third information.
  • Step 103 After receiving the first message, the access network device 2 sends a second message to the access network device 1, where the second message is used to request the context of the first SIM card.
  • the access network device 1 receives the second message sent by the access network device 2.
  • the second message is used to request the context of the first SIM card.
  • the context of the first SIM card may include configuration information of the radio resources allocated by the access network device 1 to the first SIM card, and the configuration information of the radio resources may include signaling radio bearer (SRB) information. Configuration information and data radio bearer (DRB) configuration information.
  • SRB signaling radio bearer
  • DRB data radio bearer
  • the context of the first SIM card may also include subscription information of the first SIM card, logical channel information, etc., which are not listed in the embodiment of the present application.
  • the context of the first SIM card is used for the access network device 2 to re-establish or restore the RRC connection of the first SIM card based on the context of the first SIM card.
  • the access network device 2 may re-allocate wireless resources to the first SIM card based on the context of the first SIM card sent by the access network device 1, and send configuration information of the re-allocated wireless resources to the terminal device, thereby Establish an RRC connection with the first SIM card of the terminal device.
  • the second message may be a radio link failure (Radio Link Failure, RLF) indication message, or a context request message (retrieve context request).
  • the second message may carry the above-mentioned third information.
  • the access network device 2 determines that a cell change occurs in a time slot (gap), and the access network device 1 is changed to the access network device 2, and the first SIM card needs to be re-established or restored.
  • RRC connection where the access network device 2 can trigger the sending of an RLF indication message or a context request message (retrieve context request) according to the first information, and the access network device 2 can determine the original base station of the first SIM card according to the second information, namely The access network device 1 sends the RLF indication message or context request message (retrieve context request) to the access network device 1.
  • the RLF indication message or the context request message (retrieve context request) may carry the third information, so that the access network device 1 returns the context of the first SIM card to the access network device 2.
  • Step 104 The access network device 1 sends a third message to the access network device 2, where the third message includes the context of the first SIM card.
  • the access network device 2 receives the third message sent by the access network device 1.
  • the third message includes the context of the first SIM card.
  • the third message may be a handover request (handover request) message, or a context response (retrieve context response) message.
  • the RLF indication message When the access network device 2 sends an RLF indication message to the access network device 1 according to the first information and the second information, the RLF indication message carries the first information, and the access network device 1 according to the RLF indication message carried The first information initiates the handover process.
  • the access network device 1 obtains the context of the first SIM card, and sends a handover request message to the access network device 2 to initiate a handover process.
  • the handover request message carries the context of the first SIM card.
  • the context request message (retrieve context request)
  • the context request message (retrieve context request)
  • the access network The device 1 obtains the context of the first SIM card according to the third information carried in the context request message (retrieve context request), and sends a context response (retrieve context response) message to the access network device 2 so that the first SIM card
  • the context of the SIM card is transferred to the access network device 2.
  • Step 105 The access network device 2 establishes an RRC connection between the first SIM card and the access network device 2 according to the context of the first SIM card. After the connection is successfully established, the access network device 2 sends a fourth message to the terminal device, the fourth message indicating that the RRC connection of the first SIM card is re-established or restored.
  • the terminal device receives the fourth message sent by the access network device 2.
  • the fourth message may be an RRC connection re-establishment (re-establishment) response message or an RRC connection re-establishment (resume) response message.
  • the access network device 2 re-allocates radio resources to the first SIM card according to the context of the first SIM card sent by the access network device 1, for example, re-allocates DRB and SRB to determine the updated first SIM card
  • the updated context of the first SIM card includes the configuration information of the re-allocated radio resources, and the access network device 2 sends the updated context of the first SIM card to the terminal device, so as to communicate with the first SIM card context of the terminal device.
  • a SIM card establishes an RRC connection, that is, the RRC connection of the first SIM card is re-established or restored successfully.
  • the RRC connection re-establishment response message carries the updated context of the first SIM card.
  • the RRC connection resume (resume) response message carries the updated context of the first SIM card.
  • the first SIM card of the terminal device enters the RRC connection state from an idle state (idle) or an inactive state (inactive), and the terminal device can use the first SIM card to perform services, such as call services, Internet access services, and the like.
  • the terminal device determines that the cell where the first SIM card resides has changed, and sends the first information and the second information to the access network device 2 through the first SIM card, and the access network device 2 uses the first information and the first information to send the first information and the second information.
  • the second information determines that a cell change occurs in a time slot (gap), and the access network device 1 changes to the access network device 2.
  • the access network device 2 sends a second message to the access network device 1.
  • the second message Used to request the context of the first SIM card, the access network device 1 feeds back the context of the first SIM card to the access network device 2, and then the access network device 2 can rebuild or restore the first SIM card based on the context of the first SIM card.
  • the RRC connection of a SIM card can quickly reestablish or restore the RRC connection of the first SIM card, reduce the communication delay, and meet the low-latency data transmission requirements.
  • the terminal device determines that it needs to reconnect to the access network device 2, that is, access to the access network device 2 through the above-mentioned registration process.
  • the registration process includes the terminal device sending to the new base station through SIM1.
  • the new base station selects the AMF according to the identity of SIM1, and sends a registration request message to the new AMF.
  • the new AMF determines whether SIM1 is allowed to register in the new base station. If allowed, it executes the registration process of SIM1 in the new base station. As a result, the time delay for the dual-card terminal device to enter the connected state of SIM1 becomes longer.
  • the embodiment of the present application initiates RRC connection reestablishment or restoration to quickly reestablish or restore the RRC connection of the first SIM card, thereby reducing terminal equipment It takes time to enter the connected state of SIM1, which reduces the communication delay.
  • access network device 1 receives the service data of SIM card 1 (for example: access data in the process of web page access), and access network device 1 pairs
  • the service data is saved, that is, the service data of the first SIM card (SIM card 1) is saved in the access network device 1.
  • SIM card 1 SIM card 1
  • the embodiment of this application can be saved in the access network device through the embodiment shown in FIG. 5 or FIG.
  • the service data of the first SIM card in the network access device 1 (the original base station) is sent to the terminal device to avoid the loss of service data caused when the cell is changed.
  • the service data may be any service data transmitted through the network, for example, service data accessed by the Internet and communication service data.
  • FIG. 5 is a flowchart of another multi-SIM card communication method according to an embodiment of this application.
  • the method in this embodiment involves terminal equipment, access network equipment 1, access network equipment 2, and AMF, and is implemented as shown in FIG. 4 Based on the example, take the first information and the second information carried in the RRC connection re-establishment (re-establishment) message, the second message is the RLF indication message, and the third message is the handover request message as an example for illustration, as shown in Figure 5.
  • the method of this embodiment may include:
  • Step 201 The terminal device determines that the cell where the first SIM card resides has changed.
  • step 201 For the explanation of step 201, reference may be made to step 101 of the embodiment shown in FIG. 4, which will not be repeated here.
  • Step 202 The terminal device sends an RRC connection re-establishment (re-establishment) message to the access network device 2 through the first SIM card, where the RRC connection re-establishment message carries the first information and the second information, or the RRC connection
  • the re-establishment message may also carry third information.
  • the first information is used to indicate that a cell change occurs in a time slot (gap). For example, it may indicate that a mobility (during gap) is performed in a time slot (gap).
  • the second information is used to identify the access network device 1.
  • the third information is used to identify the first SIM card of the terminal device.
  • Step 203 The access network device 2 sends an RLF indication message to the access network device 1 according to the first information, the second information, and the third information.
  • the access network device 2 determines that a cell change occurs in a time slot (gap) according to the first information, determines that the original access network device is the access network device 1 according to the second information, and determines the first SIM card of the terminal device according to the third information . That is, the first SIM card of the terminal device is determined according to the first information, the second information, and the third information, and a cell change occurs in a time slot (gap), and the access network device 1 is changed to the access network device 2. Based on this, the access network device 2 determines that the RRC connection of the first SIM card needs to be re-established. Specifically, the access network device 2 sends an RLF indication message to the access network device 1.
  • the RLF indication message may carry the first information, that is, indicate that a cell change occurs in a time slot (gap).
  • the access network device 1 initiates a handover process according to the first information.
  • the RLF indication message may also include the foregoing third information.
  • the access network device 1 obtains the corresponding context of the first SIM card according to the third information, and transfers it to the access network device 2 through a handover process.
  • the RLF indication message may also include the ECGI of the access network device 2 described above.
  • the access network device 1 initiates a handover process to the access network device 2.
  • the handover process may include the following steps 204 to 207.
  • Step 204 The access network device 1 sends a handover request (handover request) message to the access network device 2.
  • the handover request message includes the context of the first SIM card.
  • the context of the first SIM card may include the configuration information of the radio resources allocated by the access network device 1 to the first SIM card, and the configuration information of the radio resources may include the configuration information of the SRB and the configuration information of the DRB.
  • the context of the first SIM card is used for the access network device 2 to re-establish the RRC connection of the first SIM card based on the context of the first SIM card.
  • the RRC connection of the first SIM card can be quickly reestablished through a handover process.
  • Step 205 The access network device 2 establishes the RRC connection of the first SIM card according to the context of the first SIM card. After the connection is successfully established, the access network device 2 sends an RRC connection re-establishment (re-establishment) response message to the terminal device.
  • RRC connection re-establishment re-establishment
  • the access network device 2 re-allocates wireless resources to the first SIM card according to the context of the first SIM card sent by the access network device 1, for example, re-allocates DRB and SRB to determine the updated first SIM card Context, the updated context of the first SIM card includes the configuration information of the re-allocated radio resources, and the access network device 2 sends the updated context of the first SIM card to the terminal device, so as to communicate with the first SIM card of the terminal device.
  • the SIM card establishes an RRC connection, that is, the re-establishment of the RRC connection of the first SIM card is completed.
  • the RRC connection re-establishment (re-establishment) response message is used to indicate that the RRC connection re-establishment of the first SIM card is completed.
  • the RRC connection re-establishment response message carries the updated context of the first SIM card.
  • the first SIM card of the terminal device enters the RRC connected state.
  • Step 206 The access network device 2 sends a path switching request message to an access and mobility management function (Core Access and Mobility Management Function, AMF).
  • AMF Core Access and Mobility Management Function
  • AMF is responsible for location management during user movement. After successfully establishing an RRC connection with the first SIM card of the terminal device, the access network device 2 sends a path switch request message to the AMF to trigger the 5G core network (5GC) to switch the downlink (DL) data path to access Network equipment 2.
  • 5GC 5G core network
  • the AMF receives the path switching request message sent by the access network device 2.
  • the path switch request message is used to indicate that the access network device providing services for the first SIM card is the access network device 2, that is, the first SIM card obtains access in the access network device 2, and the path switch request message may Carry the IP address of the access network device 2 and the first tunnel ID (tunnel ID) so that the AMF can pass the IP address of the access network device 2 and the first tunnel ID (tunnel ID) through the Session Management Function, SMF) is passed to the user plane network element function (User plane function, UPF).
  • SMF Session Management Function
  • UPF User plane function
  • the data is sent to the access network device 2, and the downlink data is the downlink data after the aforementioned time slot (gap).
  • the path switching request message is used to request to switch the DL data path to the access network device 2, and the data path is a data transmission path from the UPF to the access network device 2. That is, the above-mentioned access network device 1 is switched to the access network device 2.
  • Step 207 The AMF sends a path switch response message to the access network device 2.
  • the access network device 2 receives the path switch response message sent by the AMF, and the path switch response message can carry the IP address of the UPF and the second tunnel ID (tunnel ID), so that the access network device 2 is uplink when the terminal device sends it.
  • the uplink data is sent to the UPF based on the IP address of the UPF and the second tunnel ID (tunnel ID), and the uplink data is the uplink data after the aforementioned time slot (gap).
  • the AMF requests the IP address and tunnel ID of the UPF from the SMF, and the SMF determines whether to feed back the IP address and tunnel ID of the UPF to the AMF. For example, it is determined based on the subscription information that when the SMF feeds back the IP address of the UPF and the second tunnel ID (tunnel ID) to the AMF, the AMF sends the path switching response message to the access network device 2.
  • Step 208 The access network device 1 sends the stored service data of the first SIM card to the access network device 2 according to the first information.
  • the service data of the first SIM card is the service data (downlink data) of the first SIM card received by the first access network device 1 in the aforementioned time slot (gap), that is, the first SIM card received by the access network device 1
  • the access network device 1 can actively send the stored service data to the access network device 2 through the data channel between the access network devices.
  • a handover process is initiated to achieve rapid re-establishment of the RRC connection of the first SIM card. Since a user plane tunnel is established between the access network device 1 (original base station) and the access network device 2 during the handover process, the access network device 1 of this embodiment can connect the first SIM card The service data is forwarded to the access network device 2 through the user plane tunnel.
  • Step 209 The access network device 2 sends the service data of the first SIM card to the terminal device. After the access network device 2 establishes the RRC connection of the first SIM card according to the context of the first SIM card, the service data of the first SIM card is sent to the terminal device.
  • the terminal device can receive the first SIM card received by the access network device 1 in the process of executing the service through the second SIM card (SIM card 2) in the above time slot (gap) (SIM card 1) business data, so as to avoid data loss.
  • SIM card 2 SIM card 2
  • Gap time slot
  • step 208 and step 209 may be executed before step 206 to step 207.
  • the terminal device determines that the cell where the first SIM card resides has changed, and sends an RRC connection re-establishment (re-establishment) message to the access network device 2 through the first SIM card, the RRC connection re-establishment message Carrying the first information, the second information, and the third information, the access network device 2 sends an RLF indication message to the access network device 1 according to the first information, the second information, and the third information to request the access device 1 to perform handover
  • the access network device 1 sends an RLF indication message to the access network device 1 according to the first information, the second information, and the third information to request the access device 1 to perform handover
  • the access network device 1 Through the access network device 1 sending the stored service data of the first SIM card to the terminal device according to the first information, data loss caused by cell change and SIM card switching can be avoided, and communication reliability can be improved to meet high reliability. Data transmission needs.
  • FIG. 6 is a flowchart of another multi-SIM card communication method according to an embodiment of the application.
  • the method in this embodiment involves a terminal device, an access network device 1, an access network device 2, and an AMF, and is implemented as shown in FIG. 4 Based on the example, take the first information and the second information carried in the RRC connection resume (resume) message, the second message is the context request message, and the third message is the context response message as an example for illustration, as shown in Figure 6.
  • the method of this embodiment may include:
  • Step 301 The terminal device determines that the cell where the first SIM card resides has changed.
  • step 301 For the explanation of step 301, refer to step 101 of the embodiment shown in FIG. 4, which will not be repeated here.
  • Step 302 The terminal device sends an RRC connection resume (resume) message to the access network device 2 through the first SIM card, where the RRC connection resume (resume) message carries the first information and the second information, or in some embodiments, the RRC The connection resume (resume) message may also carry third information.
  • the first information is used to indicate that a cell change occurs in a time slot (gap). For example, it may indicate that a mobility (during gap) is performed in a time slot (gap).
  • the second information is used to identify the access network device 1.
  • the third information is used to identify the first SIM card of the terminal device.
  • Step 303 The access network device 2 sends a context request message (retrieve context request) to the access network device 1 according to the first information, the second information, and the third information.
  • the access network device 2 determines that a cell change occurs in a time slot (gap) according to the first information, determines that the original access network device is the access network device 1 according to the second information, and determines the first SIM card of the terminal device according to the third information . That is, the first SIM card of the terminal device is determined according to the first information, the second information, and the third information, and a cell change occurs in a time slot (gap), and the access network device 1 is changed to the access network device 2. Based on this, the access network device 2 determines that the RRC connection of the first SIM card needs to be restored. Specifically, the access network device 2 sends a context request message (retrieve context request) to the access network device 1.
  • a context request message (retrieve context request)
  • the context request message (retrieve context request) may carry third information, so that the access network device 1 obtains the context of the first SIM card according to the third information, and returns the context of the first SIM card to the access network device 2.
  • Step 304 The access network device 1 sends a context response message to the access network device 2.
  • the context response message includes the context of the first SIM card.
  • Step 305 The access network device 2 restores the RRC connection of the first SIM card according to the context of the first SIM card. After the RRC connection is successfully restored, the access network device 2 sends an RRC connection restoration response message to the terminal device.
  • the access network device 2 re-allocates radio resources to the first SIM card according to the context of the first SIM card sent by the access network device 1, for example, re-allocates DRB and SRB, and determines the updated context of the first SIM card.
  • the updated context of the first SIM card includes the configuration information of the re-allocated radio resources, and the access network device 2 sends the updated context of the first SIM card to the terminal device to establish a connection with the first SIM card of the terminal device.
  • the RRC connection that is, the RRC connection of the first SIM card is restored successfully.
  • the RRC connection recovery response message is used to indicate that the RRC connection recovery of the first SIM card is completed.
  • the RRC connection recovery response message carries the updated context of the first SIM card.
  • the first SIM card of the terminal device enters the RRC connected state.
  • Step 306 The access network device 2 sends a fifth message to the access network device 1, where the fifth message is used to request to send the service data of the first SIM card in a time slot (gap).
  • the access network device 1 receives the fifth message sent by the access network device 2.
  • the access network device 2 sends a fifth message to the access network device 1 according to the above-mentioned first information.
  • the fifth message may specifically be a data forwarding address indication message, so that the access network device 1 saves data in the time slot (gap) based on the data forwarding address indication message.
  • the service data of the first SIM card is transferred to the access network device 2.
  • the data forwarding address indication message may carry the C-RNTI allocated by the access network device 2 to the first SIM card, the C-RNTI allocated by the access network device 1 to the first SIM card, and the access The address allocated by the network device 2 for receiving data.
  • the address for receiving data may include Evolved Radio Access Bearer (E-RAB) and GTP (GPRS Tunnel Protocol, GPRS Tunnel Transmission Protocol) tunnels. Endpoint value.
  • E-RAB Evolved Radio Access Bearer
  • GTP GPRS Tunnel Protocol, GPRS Tunnel Transmission Protocol
  • Step 307 The access network device 1 sends the stored service data of the first SIM card to the access network device 2.
  • the access network device 1 obtains the service data of the first SIM card according to the C-RNTI allocated by the access network device 1 to the first SIM card in the data forwarding address indication message, and sends it to the access network device 1
  • the address allocated by the network device 2 for receiving data sends the service data of the first SIM card, and the access network device 2 receives the service data of the first SIM card at the address.
  • Step 308 The access network device 2 sends the service data of the first SIM card to the terminal device.
  • the access network device sends the service data of the first SIM card to the terminal device after restoring the RRC connection of the first SIM card according to the context of the first SIM card.
  • the terminal device can receive the service data of the SIM card 1 received by the access network device 1 during the process of executing the service through the SIM card 2 in the above-mentioned time slot (gap), thereby avoiding data Lost.
  • Step 309 The access network device 2 sends a path switch request message to the AMF.
  • the AMF receives the path switching request message sent by the access network device 2.
  • the path switch request message is used to indicate that the access network device providing services for the first SIM card is the access network device 2, that is, the first SIM card obtains access in the access network device 2, and the path switch request message may Carry the IP address of the access network device 2 and the first tunnel ID (tunnel ID) so that the AMF can pass the IP address of the access network device 2 and the first tunnel ID (tunnel ID) through the Session Management Function, SMF) is passed to the user plane network element function (User plane function, UPF).
  • UPF Session Management Function
  • Step 310 The AMF sends a path switch response message to the access network device 2.
  • the access network device 2 receives the path switch response message sent by the AMF, and the path switch response message can carry the IP address of the UPF and the second tunnel ID (tunnel ID), so that the access network device 2 is uplink when the terminal device sends it.
  • the uplink data is sent to the UPF based on the IP address of the UPF and the second tunnel ID (tunnel ID), and the uplink data is the uplink data after the aforementioned time slot (gap).
  • the AMF requests the UPF IP address and tunnel ID from the SMF, and the SMF determines whether to feed back the UPF IP address and tunnel ID to the AMF. For example, it is determined based on the subscription information that when the SMF feeds back the IP address of the UPF and the second tunnel ID (tunnel ID) to the AMF, the AMF sends the path switching response message to the access network device 2.
  • step 306 to 310 is not limited by the size of the sequence number, for example, step 309 and step 310 can be executed before step 306 to step 308.
  • the embodiment of the present application may further include the following step 311, and the dotted line in FIG. 6 indicates optional.
  • Step 311 The access network device 2 sends a context release message to the access network device 1.
  • the access network device 2 After the access network device 2 determines that the UE successfully establishes a connection with the access network device 2, the access network device 2 sends the context release message to the access network device 1.
  • the context release message is used to release the context of the first SIM card in the access network device 1, and the access network device 1 deletes the context of the first SIM card according to the context release message.
  • the terminal device determines that the cell where the first SIM card resides has changed, and sends an RRC connection resume (resume) message to the access network device 2 through the first SIM card.
  • the RRC connection re-establishment message carries the first SIM card.
  • the access network device 2 sends a context request message to the access network device 1 according to the first information, the second information, and the third information, and the access network device 1 sends the context request message to the access network device. 2 Send the context of the first SIM card, so as to quickly restore the RRC connection of the first SIM card, reduce the communication delay, and meet the low-latency data transmission requirements.
  • the access network device 2 requests the access network device 1 to send the saved service data of the first SIM card to the terminal device, which can avoid data loss caused by the switch between the access network device and the SIM card, and improve Communication reliability to meet high-reliability data transmission requirements.
  • FIG. 7 is a flowchart of another multi-SIM card communication method according to an embodiment of the application.
  • the method in this embodiment involves terminal equipment, access network equipment 1, access network equipment 2, AMF and UPF. Trigger execution of the specific implementation of the embodiment shown in FIG. 4, FIG. 5, or FIG. 6 is explained. Before the embodiment shown in FIG. 4, FIG. 5, or FIG. 6, as shown in FIG. include:
  • Step 401 The terminal device requests a time slot (gap) from the access network device 1.
  • the terminal device When the first SIM card (SIM card 1) of the terminal device is in the connected state and needs to respond to the paging message of the second SIM card (SIM card 2) sent by the network, the terminal device requests the access network device 1 through step 401 Time slot (gap), one or more time slots can be requested; in this time slot (gap), the access network device 1 does not perform scheduling and data transmission and reception on the first SIM card, so that the terminal device is in the time slot (gap)
  • the paging message may be an incoming call message, or may be for informing the second SIM card to read system information, which is not limited in the embodiment of the present invention.
  • SIM card 2 the second SIM card sent by the network as an example for illustration, which may also be related messages of other services of the second SIM card.
  • SIM card 2 the second SIM card
  • the examples are not illustrated one by one.
  • Step 402 The terminal device executes the service of the second SIM card (SIM card 2) in the time slot (gap).
  • Step 403 In the time slot (gap), the access network device 1 receives the service data of the first SIM card sent by the UPF, and saves it.
  • Step 404 In the time slot (gap), the terminal device detects through the first SIM card whether the cell where the first SIM card resides has changed.
  • the terminal device continuously monitors the access network device 1 through the first SIM card.
  • RLF access network equipment
  • Step 405 When it is determined that the cell where the first SIM card resides has changed, at the end of the time slot (gap), or before the end of the time slot and after the service of the second SIM card ends, the terminal device reports to the access network device 2 Send the first message.
  • the access network device corresponding to the first SIM card sends a change to the terminal device.
  • the access network device 2 sends a first message, the first message is used to re-establish or restore the RRC connection of the first SIM card, the first message includes first information, and the access network device 2 sends the access message to the
  • the network device 1 sends the second message to quickly reestablish or restore the RRC connection of the first SIM card, reduce the communication delay, and meet the low-latency data transmission requirements.
  • trigger the access network device 1 to send the stored service data of the first SIM card to the terminal device, which can avoid data loss due to the switching of the access network device and the SIM card, and improve the reliability of communication to meet the requirements of high reliability. Data transmission requirements.
  • FIG. 8 shows a schematic block diagram of a communication device 2000 according to an embodiment of the present application.
  • the apparatus 2000 in the embodiment of the present application may be the terminal device in the foregoing method embodiment, or may be one or more chips in the terminal device.
  • the apparatus 2000 may be used to perform part or all of the functions of the terminal device in the foregoing method embodiments.
  • the device 2000 may include a transceiver module 2010 and a processing module 2020.
  • the device 2000 may also include a storage module 2030.
  • the processing module 2020 may be used to execute step 101 in the foregoing method embodiment.
  • the transceiver module 2010 can be used to send the first message in step 102 and receive the fourth message from the access network device in step 105.
  • the processing module 2020 may be used to execute step 201 in the foregoing method embodiment.
  • the transceiver module 2010 may be used to send the RRC connection re-establishment message in step 202, and receive the RRC connection re-establishment response message from the access network device in step 205.
  • the transceiver module 2010 can also be used for data from the first SIM card of the access network device in step 209.
  • the processing module 2020 may be used to execute step 301 in the foregoing method embodiment.
  • the transceiver module 2010 may be used to send the RRC connection recovery message in step 302, and receive the RRC connection recovery response message from the access network device in step 305.
  • the transceiver module 2010 can also be used for data from the first SIM card of the access network device in step 309.
  • processing module 2020 may be used to execute step 402 and step 404 in the foregoing method embodiment.
  • the processing module 2020 can also be used to send the request time slot of step 401 and the first message of step 405 through the transceiver module 2010.
  • the device 2000 may also be configured as a general-purpose processing system, for example, commonly referred to as a chip.
  • the processing module 2020 may include: one or more processors that provide processing functions; the transceiver module 2010 may be, for example, an input/output interface, The input/output interface can be used to exchange information between the chip system and the outside world, such as pins or circuits. For example, the input/output interface can output the uplink signaling of the terminal device to other modules outside the chip for processing.
  • the processing module can execute the computer-executable instructions stored in the storage module to implement the functions of the terminal device in the foregoing method embodiment.
  • the storage module 2030 optionally included in the apparatus 2000 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 2030 may also be a storage unit located outside the chip in the terminal device.
  • a storage unit in the chip such as a register, a cache, etc.
  • the storage module 2030 may also be a storage unit located outside the chip in the terminal device.
  • FIG. 9 shows a schematic block diagram of another communication device 2100 according to an embodiment of the present application.
  • the apparatus 2100 in the embodiment of the present application may be the terminal device in the foregoing method embodiment, and the apparatus 2100 may be used to perform part or all of the functions of the terminal device in the foregoing method embodiment.
  • the device 2100 may include a processor 2110, a baseband circuit 2130, a radio frequency circuit 2140, and an antenna 2150.
  • the device 2100 may further include a memory 2120.
  • the processor 2110, the memory 2120, and the baseband circuit 2130 of the device 2100 are coupled together via a bus 2160.
  • the bus system 2160 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clear description, various buses are marked as the bus system 2160 in the figure.
  • the radio frequency circuit 2140 is connected to the baseband circuit 2130, and the antenna 2150 is connected to the radio frequency circuit 2140.
  • the device 2100 may further include a first SIM card 2171 and a second SIM card 2172, and the first SIM card 2171 and the second SIM card 2172 are connected to the baseband circuit 2130.
  • the processor 2110 may be used to control the terminal device, to execute the processing performed by the terminal device in the above-mentioned embodiment, and to execute the processing procedure related to the terminal device in the above-mentioned method embodiment and/or used in the technology described in this application. In other processes, you can also run the operating system, manage the bus, and execute programs or instructions stored in the memory.
  • the processor is used to perform step 101 in the foregoing method embodiment, or used to perform step 201, or used to perform step 301, or used to perform step 402 and step 404.
  • the baseband circuit 2130 may include two modems (2131 and 2132), for example, two modems as shown in FIG. 2.
  • the baseband circuit 2130, the radio frequency circuit 2140, and the antenna 2150 can be used to support the sending and receiving of information between the terminal device and the access network device involved in the foregoing embodiment, so as to support wireless communication between the terminal device and the access network device. For example, sending the first message from the network device in step 102 in the foregoing method embodiment, or for receiving the fourth message from the access network device in step 105.
  • the fourth message sent from the access network device is received via the antenna 2150, filtered, amplified, down-converted, and digitized by the radio frequency circuit 2140, and then decoded by the baseband circuit 2130, and the data is decapsulated according to the protocol.
  • the processor 2110 After the processing, the processor 2110 performs processing to restore the service data and signaling information sent by the access network device; in another example, the uplink signaling of the terminal device can be processed by the processor 2110, and the baseband circuit 2130 performs the protocol Baseband processing such as packaging and encoding is further performed by the radio frequency circuit 2140 for radio frequency processing such as analog conversion, filtering, amplification and up-conversion, and then transmitted via the antenna 2150.
  • the radio frequency circuit 2140 for radio frequency processing such as analog conversion, filtering, amplification and up-conversion, and then transmitted via the antenna 2150.
  • the memory 2120 may be used to store program codes and data of the site, and the memory 2120 may be the storage module 2030 in FIG. 8. It is understandable that the baseband circuit 2130, the radio frequency circuit 2140, and the antenna 2150 can also be used to support the terminal device to communicate with other network entities, for example, to support the terminal device to communicate with the network element on the core network side.
  • the memory 2120 in FIG. 9 is shown as being separated from the processor 2110. However, those skilled in the art can easily understand that the memory 2120 or any part thereof may be located outside the communication device 2100.
  • the memory 2120 may include a transmission line and/or a computer product separated from the wireless node, and these media may be accessed by the processor 2110 through the bus interface 2160.
  • the memory 2120 or any part thereof may be integrated into the processor 2110, for example, may be a cache and/or a general register.
  • FIG. 9 only shows a simplified design of the terminal device.
  • the terminal device may include any number of transmitters, receivers, processors, memories, etc., and all terminal devices that can implement the application are within the protection scope of the application.
  • the embodiment of the present application also provides a communication device.
  • the device may be the chip of the terminal device in the above method embodiment.
  • the chip may include the processor 2110, the baseband circuit 2130, and the communication interface as described above, or the chip may include
  • the above-mentioned baseband circuit 2130 and communication interface can be used to perform part or all of the functions of the terminal device in the above method embodiment.
  • the communication device can also be implemented using the following: one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • an embodiment of the present application further provides a computer storage medium, which can store program instructions for indicating any of the above methods, so that the processor executes the program instructions to implement the above method embodiments. Involving the methods and functions of terminal equipment.
  • FIG. 10 shows a schematic block diagram of a communication device 2200 according to an embodiment of the present application.
  • the apparatus 2200 in the embodiment of the present application may be the second access network device in the foregoing method embodiment, or may be one or more chips in the second access network device.
  • the apparatus 2200 may be used to perform part or all of the functions of the second access network device in the foregoing method embodiment.
  • the device 2200 may include a processing module 2210 and a transceiver module 2220.
  • the device 2200 may further include a storage module 2230.
  • the transceiving module 2220 can be used for the second access network device to receive the first message of step 102 in the foregoing method embodiment, and the processing module 2210 can be used to send the steps in the foregoing method embodiment through the transceiving module 2220 103.
  • the transceiver module 2220 is used to receive the third message of step 104 in the foregoing method embodiment.
  • the processing module 2210 can also be used to perform step 105 in the foregoing method embodiment.
  • the transceiver module 2220 also uses The fourth message of step 103 in the foregoing method embodiment is sent.
  • the transceiver module 2220 may be used for the second access network device to receive the RRC connection re-establishment message in step 202 in the foregoing method embodiment, and the processing module 2210 may be used to transmit the message in the foregoing method embodiment through the transceiver module 2220.
  • the RLF indication message of step 203 in the foregoing method embodiment, the transceiver module 2220 is used to receive the handover request message of step 204 in the foregoing method embodiment, the processing module 2210 may also be used to perform step 205 in the foregoing method embodiment, the transceiving module 2220 It is also used to send the RRC connection re-establishment response message in step 205 in the foregoing method embodiment.
  • the transceiver module 2220 is also configured to receive the service data of the first SIM card in step 208 in the foregoing method embodiment, and send it to the terminal device.
  • the transceiver module 2220 may be used for the second access network device to receive the RRC connection recovery message in step 302 in the foregoing method embodiment, and the processing module 2210 may be used to transmit the message in the foregoing method embodiment through the transceiver module 2220.
  • the context request message of step 303 in the foregoing method embodiment, the transceiver module 2220 is used to receive the context response message of step 304 in the foregoing method embodiment, the processing module 2210 may also be used to perform step 305 in the foregoing method embodiment, the transceiving module 2220 It is also used to send the RRC connection recovery response message in step 305 in the foregoing method embodiment.
  • the processing module 2210 is further configured to send the fifth message of step 306 in the foregoing method embodiment through the transceiving module 2220, and the transceiving module 2220 is further configured to receive the service data of the first SIM card in step 307 in the foregoing method embodiment, And send it to the terminal device.
  • the device 2200 may also be configured as a general-purpose processing system, for example, commonly referred to as a chip.
  • the processing module 2210 may include: one or more processors that provide processing functions; the transceiver module may be, for example, an input/output interface, a tube
  • the input/output interface can be used to exchange information between the chip system and the outside world.
  • the input/output interface can output the first information to other modules outside the chip for processing.
  • the one or more processors can execute computer-executable instructions stored in the storage module to implement the functions of the access network device in the foregoing method embodiments.
  • the storage module 2230 optionally included in the apparatus 2200 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 2230 may also be a storage module located outside the chip in the access network device.
  • the storage unit such as read-only memory (ROM for short) or other types of static storage devices that can store static information and instructions, random access memory (RAM for short), etc.
  • FIG. 11 shows a schematic block diagram of another communication device 2300 according to an embodiment of the present application.
  • the apparatus 2300 in the embodiment of the present application may be the second access network device in the foregoing method embodiment, and the apparatus 2300 may be used to perform part or all of the functions of the network device in the foregoing method embodiment.
  • the device 2300 may include a processor 2310, a baseband circuit 2330, a radio frequency circuit 2340, and an antenna 2350.
  • the device 2300 may further include a memory 2320.
  • the processor 2310, the memory 2320, and the baseband circuit 2330 of the device 2300 are coupled together via a bus 2360.
  • the bus system 2360 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 2360 in the figure.
  • the radio frequency circuit 2340 is connected to the baseband circuit 2330, and the antenna 2350 is connected to the radio frequency circuit 2340.
  • the processor 2310 may be used to control the second access network device, to execute the processing performed by the second access network device in the foregoing embodiment, and to perform the processing procedures and procedures related to the access network device in the foregoing method embodiment. /Or other processes used in the technology described in this application can also run an operating system, be responsible for managing the bus, and can execute programs or instructions stored in the memory. For example, the processor is used to determine the second message of step 103 in the foregoing method steps.
  • the baseband circuit 2330, the radio frequency circuit 2340, and the antenna 2350 can be used to support the sending and receiving of information between the second access network device and the terminal device involved in the foregoing embodiment, so as to support wireless communication between the second access network device and the terminal device.
  • the first message in step 101 in the foregoing method embodiment is received, and the second message in step 103 is sent.
  • the first message sent from the terminal device is received by the antenna 2350, filtered, amplified, down-converted, and digitized by the radio frequency circuit, and then decoded by the baseband circuit, and then unpacked data according to the protocol.
  • the processor 2310 performs processing to restore the service data and signaling information sent by the terminal device; in another example, the second message sent by the second access network device can be processed by the processor 2310, and encapsulated according to the protocol via the baseband circuit 2330 After the baseband processing such as encoding, the radio frequency circuit 2340 performs analog conversion, filtering, amplification and up-conversion and other radio frequency processing, it is transmitted through the antenna 2350.
  • the memory 2320 can be used to store the program code and data of the network device, and the memory 2320 can be The storage module 2230 in FIG. 10. It is understandable that the baseband circuit 2330, the radio frequency circuit 2340, and the antenna 2350 can also be used to support the second access network device to communicate with other network entities, for example, to support the second access network device to communicate with other network devices.
  • FIG. 11 only shows a simplified design of the second access network device.
  • the second access network device may include any number of transmitters, receivers, processors, memories, etc., and all network devices that can implement this application are within the protection scope of the embodiments of this application. Inside.
  • the embodiment of the present application also provides a communication device, which may be the chip of the second access network device in the above method embodiment, and the chip may include the processor 2310, the baseband circuit 2330 and the communication interface as described above, or The chip may include the baseband circuit 2330 and the communication interface as described above.
  • the device may be used to perform part or all of the functions of the second access network device in the above method embodiment. For its implementation principles and technical effects, please refer to the above embodiments. The explanation of, I won’t repeat it here.
  • the communication device can also be implemented using the following: one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • an embodiment of the present application further provides a computer storage medium, which can store program instructions for instructing any of the foregoing methods, so that the processor executes the program instructions to implement the foregoing method embodiments.
  • the method and function of the second access network device are involved in.
  • FIG. 12 shows a schematic block diagram of a communication device 2400 according to an embodiment of the present application.
  • the apparatus 2400 in the embodiment of the present application may be the first access network device in the foregoing method embodiment, or may be one or more chips in the first access network device.
  • the apparatus 2400 may be used to perform part or all of the functions of the first access network device in the foregoing method embodiment.
  • the device 2400 may include a processing module 2410 and a transceiver module 2420.
  • the device 2400 may further include a storage module 2430.
  • the transceiving module 2420 can be used for the first access network device to receive the second message of step 103 in the foregoing method embodiment, and the processing module 2410 can be used to send the steps in the foregoing method embodiment through the transceiving module 2420 104’s third message.
  • the transceiver module 2420 may be used for the first access network device to receive the RLF indication message of step 203 in the foregoing method embodiment, and the processing module 2410 may be used to send the RLF indication message in the foregoing method embodiment through the transceiver module 2420 In the handover request message of step 204, the transceiver module 2420 is also used to send the service data of the first SIM card in step 208 in the foregoing method embodiment.
  • the transceiver module 2420 may be used for the first access network device to receive the context request message of step 303 in the foregoing method embodiment, and the transceiver module 2420 may be used for sending the context response message of step 304 in the foregoing method embodiment.
  • the transceiving module 2420 can also be used for the first access network device to receive the fifth message in step 306 in the foregoing method embodiment, and the transceiving module 2420 can also be used to send the first SIM card in step 307 in the foregoing method embodiment.
  • Business data may be used for the first access network device to receive the context request message of step 303 in the foregoing method embodiment, and the transceiver module 2420 may be used for sending the context response message of step 304 in the foregoing method embodiment.
  • the transceiving module 2420 can also be used for the first access network device to receive the fifth message in step 306 in the foregoing method embodiment, and the transceiving module 2420 can also be used to send the first SIM card in step 307
  • the device 2400 may also be configured as a general-purpose processing system, for example, commonly referred to as a chip.
  • the processing module 2410 may include: one or more processors that provide processing functions; the transceiver module may be, for example, an input/output interface, a tube
  • the input/output interface can be used to exchange information between the chip system and the outside world.
  • the input/output interface can output the first message to other modules outside the chip for processing.
  • the one or more processors can execute computer-executable instructions stored in the storage module to implement the functions of the access network device in the foregoing method embodiments.
  • the storage module 2430 optionally included in the apparatus 2400 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 2430 may also be a storage module located outside the chip in the access network device.
  • the storage unit such as read-only memory (ROM for short) or other types of static storage devices that can store static information and instructions, random access memory (RAM for short), etc.
  • FIG. 13 shows a schematic block diagram of another communication device 2500 according to an embodiment of the present application.
  • the apparatus 2500 in the embodiment of the present application may be the first access network device in the foregoing method embodiment, and the apparatus 2500 may be used to perform part or all of the functions of the network device in the foregoing method embodiment.
  • the device 2500 may include a processor 2510, a baseband circuit 2530, a radio frequency circuit 2540, and an antenna 2550.
  • the device 2500 may also include a memory 2520.
  • the processor 2510, the memory 2520, and the baseband circuit 2530 of the device 2500 are coupled together via a bus 2560.
  • the bus system 2560 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 2560 in the figure.
  • the radio frequency circuit 2540 is connected to the baseband circuit 2530, and the antenna 2550 is connected to the radio frequency circuit 2540.
  • the processor 2510 can be used to control the first access network device, and can be used to perform the processing performed by the first access network device in the foregoing embodiment, and can perform the processing related to the first access network device in the foregoing method embodiment.
  • the process and/or other processes used in the technology described in this application can also run an operating system, manage the bus, and can execute programs or instructions stored in the memory.
  • the processor is used to determine the third message of step 104 in the foregoing method steps.
  • the baseband circuit 2530, the radio frequency circuit 2540, and the antenna 2550 can be used to support the sending and receiving of information between the first access network device and the second access network device involved in the above-mentioned embodiments, so as to support the first access network device and the second access network device.
  • the second message in step 103 in the foregoing method embodiment is received, and the third message in step 104 is sent.
  • the second message sent from the second access network device is received by the antenna 2550, filtered, amplified, down-converted, and digitized by the radio frequency circuit, and then decoded by the baseband circuit, and the data is decapsulated according to the protocol.
  • the processor 2510 After processing, the processor 2510 performs processing to restore the service data and signaling information sent by the second access network device; in another example, the third message sent by the first access network device can be processed by the processor 2510, After the baseband circuit 2530 performs baseband processing such as encapsulation and encoding according to the protocol, the radio frequency circuit 2540 performs analog conversion, filtering, amplification and up-conversion and other radio frequency processing, and then transmits it through the antenna 2550.
  • the memory 2520 can be used to store the program of the network device For code and data, the memory 2520 may be the storage module 2430 in FIG. 12.
  • the baseband circuit 2530, the radio frequency circuit 2540, and the antenna 2550 can also be used to support the first access network device to communicate with other network entities, for example, to support the first access network device and the terminal device or other network devices. To communicate.
  • FIG. 13 only shows a simplified design of the first access network device.
  • the first access network device may include any number of transmitters, receivers, processors, memories, etc., and all network devices that can implement the present application are within the protection scope of the embodiments of the present application. Inside.
  • the embodiment of the present application also provides a communication device, which may be the chip of the first access network device in the above method embodiment, and the chip may include the processor 2510, the baseband circuit 2530 and the communication interface as described above, or The chip may include the baseband circuit 2530 and communication interface as described above.
  • the device may be used to perform part or all of the functions of the first access network device in the above method embodiment. For its implementation principles and technical effects, please refer to the above embodiments. The explanation of, I won’t repeat it here.
  • the communication device can also be implemented using the following: one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), control Any combination of devices, state machines, gate logic, discrete hardware components, any other suitable circuits, or circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • an embodiment of the present application further provides a computer storage medium, which can store program instructions for instructing any of the foregoing methods, so that the processor executes the program instructions to implement the foregoing method embodiments.
  • the method and function of the first access network device are involved in.
  • the processors involved in the foregoing device 2100, device 2300, and device 2500 may be general-purpose processors, such as general-purpose central processing units (CPU), network processors (NP), microprocessors, etc., or they may be specific applications.
  • An integrated circuit application-specific integrated circBIt, ASIC for short), or one or more integrated circuits used to control the execution of the program of this application. It can also be a digital signal processor (Digital Signal Processor, DSP for short), a Field-Programmable Gate Array (FPGA for short), or other programmable logic devices, discrete gates or transistor logic devices, or discrete hardware components.
  • DSP Digital Signal Processor
  • FPGA Field-Programmable Gate Array
  • the controller/processor may also be a combination for realizing computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the processor usually executes logic and arithmetic operations based on program instructions stored in the memory.
  • the storage involved in the aforementioned device 2100, device 2300, and device 2500 may also store an operating system and other application programs.
  • the program may include program code, and the program code includes computer operation instructions.
  • the above-mentioned memory may be a read-only memory (read-only memory, ROM for short), other types of static storage devices that can store static information and instructions, random access memory (RAM for short), and storage Other types of dynamic storage devices for information and instructions, disk storage, etc.
  • the memory can be a combination of the storage types described above.
  • the above-mentioned computer-readable storage medium/memory may be in the processor, may also be external to the processor, or distributed on multiple entities including the processor or processing circuit.
  • the above-mentioned computer-readable storage medium/memory may be embodied in a computer program product.
  • the computer program product may include a computer-readable medium in packaging materials.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk).

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

Abstract

La présente invention concerne un procédé et un appareil de communication pour une carte à multiples modules d'identification d'abonné (SIM). Le procédé de communication pour une carte à multiples modules d'identification d'abonné (SIM) de la présente invention consiste à : dans un intervalle de temps, déterminer que la cellule contenant une première carte SIM a changé, l'intervalle de temps étant demandé à partir d'un premier dispositif de réseau d'accès au moyen de la première carte SIM, et l'intervalle de temps permettant d'exécuter un service au moyen d'une seconde carte SIM ; envoyer un premier message à un second dispositif de réseau d'accès au moyen de la première carte SIM, le premier message permettant de rétablir ou de récupérer une connexion de gestion des ressources radio (RRC) de la première carte SIM, le premier message comprenant des premières informations et des secondes informations, les premières informations permettant d'indiquer qu'un changement de cellule se produit dans l'intervalle de temps, et les secondes informations permettant d'identifier le premier dispositif de réseau d'accès ; et recevoir un deuxième message envoyé par le second dispositif de réseau d'accès, le deuxième message permettant d'indiquer l'achèvement du rétablissement ou de la récupération de la connexion RRC de la première carte SIM. Selon la présente invention, la connexion RRC d'une première carte SIM peut être rapidement rétablie ou récupérée, et la latence de communication est réduite de manière à satisfaire aux exigences de transmission de données à faible latence.
PCT/CN2021/084582 2020-04-17 2021-03-31 Procédé et appareil de communication pour une carte à multiples modules d'identification d'abonné (sim) WO2021208741A1 (fr)

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