WO2021081959A1 - 通信方法、设备及系统 - Google Patents

通信方法、设备及系统 Download PDF

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Publication number
WO2021081959A1
WO2021081959A1 PCT/CN2019/114891 CN2019114891W WO2021081959A1 WO 2021081959 A1 WO2021081959 A1 WO 2021081959A1 CN 2019114891 W CN2019114891 W CN 2019114891W WO 2021081959 A1 WO2021081959 A1 WO 2021081959A1
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WO
WIPO (PCT)
Prior art keywords
information
frequency band
user identity
terminal device
access network
Prior art date
Application number
PCT/CN2019/114891
Other languages
English (en)
French (fr)
Inventor
张宏平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/114891 priority Critical patent/WO2021081959A1/zh
Priority to EP19951206.2A priority patent/EP4040913A4/en
Priority to CN201980101475.0A priority patent/CN114557124A/zh
Publication of WO2021081959A1 publication Critical patent/WO2021081959A1/zh
Priority to US17/661,332 priority patent/US20220256410A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H04W36/008355—Determination of target cell based on user equipment [UE] properties, e.g. UE service capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • 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
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • This application relates to the field of communication, and in particular to communication methods, equipment and systems.
  • DSDA dual SIM dual active
  • the so-called DSDA mode means that the terminal device can install two (subscriber identification module, SIM) cards at the same time, that is, the terminal device supports two user identities (one SIM card corresponds to one user identity), and the two SIM cards can be connected at the same time , That is, the terminal device can send and receive data as two users at the same time.
  • SIM subscriber identification module
  • the carrier aggregation capabilities supported by the hardware resources of the terminal device are fixed, causing the carrier aggregation capabilities of the two SIM cards to restrict each other.
  • the carrier aggregation capability of the SIM card is specifically expressed as the frequency band available to the SIM card.
  • the combination of frequency bands occupied by the two SIM cards of the terminal equipment must be the frequency band combination in the frequency band combination list supported by the terminal equipment.
  • the prior art can only specify the frequency band that can be occupied by each SIM card of the terminal device in the DSDA mode in a fixed division manner. However, this fixed division method will greatly restrict the available frequency band of each SIM card of the terminal device, and thus restrict the data transmission speed of the terminal device.
  • the communication method, device, and system provided by the embodiments of the present application can coordinate the carrier aggregation capabilities of two SIM cards of a terminal device in the DSDA mode, improve the data transmission speed of the terminal device in the DSDA mode, and improve user experience.
  • a communication method includes: a terminal device obtains first information or second information, wherein the terminal device supports a first user identity and a second user identity, and the first information includes information about the first user identity. Serving cell information, the second information includes the frequency band combination list or frequency band list supported by the second user identity; the terminal device sends the first information or the second information to the first access network device as the second user identity, and the first access network device It is the access network device that the terminal device accesses as the second user.
  • the terminal device obtains the first information including the serving cell information of the first user identity, and then sends the first information to the first access network device as the second user identity
  • the first access network device can Receive the first information from the terminal device, and determine the information of the serving cell of the first user's identity based on the first information, and then comprehensively consider the serving cell of the first user's identity and the serving cell of the second user's identity to add the second user's identity Service area.
  • the terminal device can report the frequency band occupied by one SIM card (such as SIM card A) to the access network device accessed by another SIM card (ie SIM card B), so that the SIM card
  • the access network equipment accessed by card B can dynamically adjust the frequency band available to SIM card B according to the frequency band information occupied by SIM card A, thereby coordinating the carrier aggregation capabilities of the two SIM cards. It avoids the restriction on the data transmission speed of the terminal device caused by the fixed division method to specify the frequency band that each SIM card can occupy, which can increase the data transmission speed of the terminal device and enhance the user experience.
  • the terminal device obtains the second information including the frequency band combination list or the frequency band list supported by the second user identity, and then sends the second information to the first access network device as the second user identity, so The first access network device can receive the second information from the terminal device, and add a serving cell for the second user identity according to the second information.
  • the first access network device since the terminal device has considered the information of the serving cell of the first user identity when acquiring the second information, the first access network device may configure the serving cell for the second user identity according to the second information.
  • the terminal device can determine the available frequency band of the other SIM card (ie SIM card B) according to the frequency band occupied by one of the SIM cards (such as SIM card A), and aggregate the carrier of the two SIM cards.
  • the capabilities are coordinated, so that the access network device accessed by the SIM card B can obtain the frequency band available to the SIM card B, and then add a serving cell for the second user identity based on this.
  • the restriction on the data transmission speed of the terminal device caused by the fixed division method to specify the frequency band that can be occupied by each SIM card is avoided, and the data transmission speed of the terminal device can be improved, and the user experience can be improved.
  • the method further includes: the terminal device sends a radio resource control (radio resource control, RRC) establishment request message to the first access network device as the second user; and the terminal device receives the radio resource control (RRC) establishment request message as the second user.
  • RRC radio resource control
  • the network access device sends an RRC establishment complete message, and the RRC establishment complete message carries the first information or the second information.
  • the method further includes: the terminal device sends an RRC recovery request message to the first access network device as the second user; and the terminal device receives the RRC recovery request message from the first access network device as the second user.
  • RRC recovery message where the terminal device sends the first information or the second information to the first access network device as the second user, including: the terminal device sends the RRC recovery complete message to the first access network device as the second user ,
  • the RRC recovery complete message carries the first information or the second information.
  • the terminal device uses the second user identity to send the first information or the second information to the first access network device, including: when the serving cell information of the first user identity changes, the terminal device uses the second user identity to send the first information or the second information.
  • the user identity sends the user equipment auxiliary information to the first access network device, and the user equipment auxiliary information carries the first information or the second information.
  • the serving cell information of the first user identity includes third information of each serving cell of the first user identity, and the third information includes at least one of the following information: frequency band information, synchronization signal block frequency point , Cell identification information, bandwidth information, bandwidth part configuration information, and RRC status information.
  • the change of the serving cell information of the first user identity includes: at least one item of the third information of at least one serving cell of the first user identity is changed.
  • a communication method includes: a first access network device receives first information or second information sent by a terminal device as a second user identity, wherein the terminal device supports the first user identity and the second user identity. 2.
  • the first information includes the serving cell information of the first user identity, and the second information includes the frequency band combination list or frequency band list supported by the second user identity; the first access network device determines according to the first information or the second information Whether to add the first cell to the serving cell of the second user identity.
  • the first access network device determines whether to add the first cell as the serving cell of the second user identity according to the first information, including: the first access network device determines at least one cell according to the first information The first frequency band, the at least one first frequency band includes the frequency band corresponding to each serving cell in at least one serving cell of the first user identity; the first access network device according to the frequency band combination list supported by the terminal device, at least one first frequency band, At least one second frequency band and a third frequency band corresponding to the first cell are used to determine whether to add the first cell as a serving cell of the second user identity; wherein, at least one second frequency band includes the at least one serving cell of the second user identity The frequency band corresponding to each serving cell.
  • the first access network device can add a serving cell for the second user identity of the terminal device, increase the data transmission speed of the terminal device, and improve user experience.
  • the first access network device determines whether to add the first cell to the serving cell of the second user identity according to the second information , Including: the first access network device determines whether to add the first cell as a serving cell of the second user identity according to the frequency band combination list supported by the second user identity, at least one second frequency band, and the third frequency band corresponding to the first cell ; Wherein, the at least one second frequency band includes a frequency band corresponding to each of the at least one serving cell of the second user identity. Based on this solution, the first access network device can add a serving cell for the second user identity of the terminal device, increase the data transmission speed of the terminal device, and improve user experience.
  • the first access network device determines whether to use the first cell as the target serving cell of the second user identity after the handover according to the second information. , Including: the first access network device determines whether the third frequency band corresponding to the first cell exists in the frequency band list supported by the second user identity; if the third frequency band exists in the frequency band list supported by the second user identity, the first access network The device determines to use the first cell as the target serving cell of the second user identity after the handover; if the third frequency band does not exist in the list of frequency bands supported by the second user identity, the first access network device determines not to use the first cell as the second user identity after the handover. 2. The target serving cell of the user identity. Based on this solution, the first access network device can determine the target serving cell after the handover for the second user identity of the terminal device according to the second information.
  • the first access network device determines whether to use the first cell as the target serving cell of the second user identity after the handover according to the first information, including: the first access network device according to the first information, Determine at least one first frequency band, the at least one first frequency band includes the frequency band corresponding to each serving cell in at least one serving cell of the first user identity; the first access network device determines whether there is at least one frequency band combination list supported by the terminal device A frequency band combination composed of a first frequency band and a third frequency band corresponding to the first cell; if there is a frequency band combination in the list of frequency band combinations supported by the terminal device, the first access network device determines to use the first cell as the second user identity after handover Target serving cell; if there is no frequency band combination in the frequency band combination list supported by the terminal device, the first access network device determines not to use the first cell as the target serving cell of the second user identity after the handover. Based on this solution, the first access network device can determine the target serving cell after the handover for the second user identity of the
  • the method further includes: the first access network device determines to perform handover on the terminal device; the first access network device sends a handover request message to the second access network device, and the handover request message carries the first Information or second information, the second access network device is a target access network device that the terminal device accesses as the second user.
  • the first access network device can send the first message or the second message to the second access network device through the handover request message, so that after the terminal device is switched to the second access network device as the second user,
  • the second access network device may add a serving cell for the second user identity of the terminal device according to the first information or the second information.
  • the method further includes: the first access network device receives the RRC establishment request message sent by the terminal device as the second user; the first access network device sends the RRC establishment message to the terminal device; An access network device receives the first information or second information sent by the terminal device as the second user, including: the first access network device receives the RRC establishment complete message sent by the terminal device as the second user, and the RRC establishment complete message Carry the first information or the second information.
  • the first access network device can obtain the first information or the second information sent by the terminal device by receiving the RRC establishment complete message sent by the terminal device.
  • the method further includes: the first access network device receives the RRC recovery request message sent by the terminal device as the second user; the first access network device sends the RRC recovery message to the terminal device; wherein, The first access network device receiving the first information or the second information sent by the terminal device as the second user includes: the first access network device receives the RRC recovery complete message sent by the terminal device as the second user, and the RRC recovery is complete The message carries the first information or the second information. Based on this solution, the first access network device can obtain the first information or the second information sent by the terminal device by receiving the RRC recovery complete message sent by the terminal device.
  • the first access network device receiving the first information or the second information sent by the terminal device as the second user includes: the first access network device receiving the first information or the second information sent by the terminal device as the second user User equipment auxiliary information, the user equipment auxiliary information carries the first information or the second information. Based on this solution, the first access network device can obtain the first information or the second information sent by the terminal device by receiving the user equipment auxiliary information sent by the terminal device.
  • the serving cell information of the first user identity includes third information of each serving cell of the first user identity, and the third information includes at least one of the following information: frequency band information, synchronization signal block frequency point , Cell identification information, bandwidth information, bandwidth part configuration information, and RRC status information.
  • a terminal device supports a first user identity and a second user identity, and includes a processing module and a transceiver module.
  • the processing module is used to obtain first information or second information, the first information includes the serving cell information of the first user identity, and the second information includes the frequency band combination list or frequency band list supported by the second user identity; the transceiver module uses When sending the first information or the second information to the first access network device as the second user, the first access network device is the access network device that the terminal device accesses as the second user.
  • the transceiver module is also used to send a radio resource control RRC establishment request message to the first access network device as the second user; to receive the RRC from the first access network device as the second user Create a message.
  • the transceiver module is configured to send the first information or the second information to the first access network device as the second user, which specifically includes: sending the RRC establishment complete message and the RRC establishment complete message to the first access network device as the second user Carry the first information or the second information.
  • the transceiver module is also used to send an RRC recovery request message to the first access network device as the second user; to receive the RRC recovery message from the first access network device as the second user .
  • the transceiver module is configured to send the first information or the second information to the first access network device as the second user, specifically including: sending the RRC recovery complete message and the RRC recovery complete message to the first access network device as the second user Carry the first information or the second information.
  • the transceiver module is used to send the first information or the second information to the first access network device as the second user, including: when the serving cell information of the first user changes, the second information
  • the user identity sends the user equipment auxiliary information to the first access network device, and the user equipment auxiliary information carries the first information or the second information.
  • the serving cell information of the first user identity includes third information of each serving cell of the first user identity, and the third information includes at least one of the following information: frequency band information, synchronization signal block frequency point , Cell identification information, bandwidth information, bandwidth part configuration information, and RRC status information.
  • the change of the serving cell information of the first user identity includes: at least one item of the third information of at least one serving cell of the first user identity is changed.
  • a first access network device in a fourth aspect, includes a transceiver module and a processing module.
  • the transceiver module is used to receive the first information or the second information sent by the terminal device as the second user identity, wherein the terminal device supports the first user identity and the second user identity, and the first information includes the service of the first user identity Cell information, the second information includes a frequency band combination list or frequency band list supported by the second user identity.
  • the processing module is configured to determine whether to add the first cell as a serving cell of the second user identity according to the first information or the second information.
  • the processing module is specifically configured to: determine at least one first frequency band according to the first information, where the at least one first frequency band includes a frequency band corresponding to each of the at least one serving cell of the first user identity; According to the frequency band combination list supported by the terminal device, at least one first frequency band, at least one second frequency band, and the third frequency band corresponding to the first cell, determine whether to add the first cell to the serving cell of the second user identity; among them, at least one The second frequency band includes a frequency band corresponding to each of the at least one serving cell of the second user identity.
  • the second information includes a frequency band combination list supported by the second user identity
  • the processing module is specifically configured to: according to the frequency band combination list supported by the second user identity, at least one second frequency band, and the corresponding frequency band of the first cell The third frequency band, determining whether to add the first cell as a serving cell of the second user identity; wherein the at least one second frequency band includes a frequency band corresponding to each of the at least one serving cell of the second user identity.
  • the second information includes a list of frequency bands supported by the second user identity
  • the processing module is specifically configured to: determine whether the third frequency band corresponding to the first cell exists in the list of frequency bands supported by the second user identity; If there is a third frequency band in the list of frequency bands supported by the user identity, the first cell is determined to be the target serving cell of the second user identity after the handover; if the third frequency band does not exist in the list of frequency bands supported by the second user identity, determine not to The cell serves as the target serving cell of the second user identity after the handover.
  • the processing module is specifically configured to: determine at least one first frequency band according to the first information, where the at least one first frequency band includes a frequency band corresponding to each of the at least one serving cell of the first user identity ; Determine whether there is at least one frequency band combination formed by the first frequency band and the third frequency band corresponding to the first cell in the frequency band combination list supported by the terminal equipment; if there is a frequency band combination in the frequency band combination list supported by the terminal equipment, determine whether the first cell is used as The target serving cell of the second user identity after the handover; if there is no frequency band combination in the frequency band combination list supported by the terminal device, it is determined not to use the first cell as the target serving cell of the second user identity after the handover.
  • the transceiver module is also used to send a handover request message to the second access network device, the handover request message carries the first information or the second information, and the second access network device is the terminal device with the second The target access network device accessed by the user identity.
  • the transceiver module is also used to receive the RRC establishment request message sent by the terminal device as the second user; send the RRC establishment message to the terminal device; the transceiver module is used to receive the RRC establishment request message sent by the terminal device as the second user.
  • the first information or the second information specifically includes: receiving the RRC establishment complete message sent by the terminal device as the second user, and the RRC establishment complete message carries the first information or the second information.
  • the transceiver module is also used to receive the RRC recovery request message sent by the terminal device as the second user; and send the RRC recovery message to the terminal device.
  • the transceiver module is configured to receive the first information or the second information sent by the terminal device as the second user, specifically including: receiving the RRC recovery complete message sent by the terminal device as the second user, the RRC recovery complete message carries the first information or Second information.
  • the transceiver module is used to receive the first information or the second information sent by the terminal device as the second user, specifically including: receiving the user equipment auxiliary information sent by the terminal device as the second user, and the user equipment
  • the auxiliary information carries the first information or the second information.
  • the serving cell information of the first user identity includes third information of each serving cell of the first user identity, and the third information includes at least one of the following information: frequency band information, synchronization signal block frequency point , Cell identification information, bandwidth information, bandwidth part configuration information, and RRC status information.
  • a communication device including a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send the signals from the processor to the communication device.
  • the processor is used to implement the method of the first aspect or the second aspect through a logic circuit or executing code instructions.
  • the communication device further includes a memory.
  • the memory is used to store computer instructions.
  • the processor executes the instructions, the communication device executes the method described in the first aspect or the second aspect.
  • a communication device including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the method as described in the first aspect or the second aspect according to the instruction .
  • the communication device further includes a memory for storing necessary program instructions and data.
  • the communication device is a chip system, it may be composed of chips, or may include chips and other discrete devices.
  • the communication device may be the terminal device in the third aspect, or may be used for the terminal in the third aspect.
  • the chip or chip system of the device, or the device containing the above-mentioned terminal device; or, the communication device may be the first access network device in the above-mentioned fourth aspect, or may be used for the first access network device in the above-mentioned fourth aspect Chip or chip system, or a device containing the above-mentioned first access network device.
  • a computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the method described in the first or second aspect.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the method described in the first aspect or the second aspect.
  • a communication system in a ninth aspect, includes the terminal device described in the third aspect and the first access network device described in the fourth aspect, or at least one of the terminal devices described in the fifth aspect or the sixth aspect. Mentioned communication device.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • Figure 2 is a schematic diagram of the existing 4G network architecture
  • Figure 3 is a schematic diagram of an existing 5G network architecture
  • FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 5 is a first schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of a method for gNB1 to obtain a list of frequency band combinations supported by a terminal device according to an embodiment of the application;
  • FIG. 7(a) is an exemplary frequency band combination list supported by terminal equipment provided by an embodiment of this application.
  • FIG. 7(b) is an exemplary frequency band combination list and frequency band list supported by the second user identity provided by this embodiment of the application;
  • FIG. 7(c) is an exemplary frequency band combination list supported by the second user identity provided by this embodiment of the application.
  • FIG. 7(d) is an exemplary list of frequency bands supported by the second user identity provided by this embodiment of the application.
  • FIG. 8 is a second schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 9 is a third schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a first access network device provided by an embodiment of this application.
  • At least one item (a) 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, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • words such as “first” and “second” are used to distinguish the same or similar items with substantially the same function and effect.
  • words such as “first” and “second” do not limit the quantity and execution order, and words such as “first” and “second” do not limit the difference.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions.
  • words such as “exemplary” or “for example” are used to present related concepts in a specific manner to facilitate understanding.
  • the terminal device with one SIM card installed is regarded as the terminal device supporting one user identity.
  • a terminal device with two SIM cards installed is regarded as supporting two user identities.
  • the embodiment of the present application is mainly described by taking the terminal device supporting two user identities as an example, and the two user identities are called the first user identity and the second user identity, respectively.
  • the first user identity can be understood as the user identity of the terminal device after the SIM card A is installed
  • the second user identity can be understood as the user identity of the terminal device after the SIM card B is installed.
  • the terminal device supports more than two user identities.
  • the terminal device supports three user identities, four user identities, or more users.
  • Identity and can be registered in more than two networks, where each user identity can be registered in one network.
  • the terminal device supports more than two user identities its specific implementation can refer to the related description of the terminal device supporting two user identities, which is not described in detail in the embodiment of the present application.
  • the terminal device when the user identity of the terminal device is the first user identity, from the perspective of the network side, the terminal device can be understood as a user (from the perspective of the protocol, it is a terminal device, for example, called the first user );
  • the terminal device when the user identity of the terminal device is the second user identity, from the perspective of the network side, the terminal device can be understood as another user (for example, referred to as the second user).
  • the terminal device can be registered in the first network as the first user and registered in the second network as the second user.
  • the terminal device supports one user identity, which can also be described as the terminal device having one user identity.
  • the terminal device supports two user identities, which can also be described as the terminal device having two user identities.
  • first user identity of the terminal device described in the various embodiments of this application can be understood as “the first user identity supported by the terminal device", as indicated by these two descriptions.
  • the content is the same, and the two descriptions can be interchanged.
  • the second user identity of the terminal device can be understood as “the second user identity supported by the terminal device”.
  • the content indicated by the two description methods is the same, and the two description methods can be interchanged.
  • the two SIM cards installed in the terminal device in the DSDA mode are referred to as SIM card A and SIM card B, respectively.
  • the terminal device can support two user identities, where the user identity corresponding to SIM card A is referred to as the first user identity, and the user identity corresponding to SIM card B is referred to as the second user identity.
  • a communication system 10 provided by this embodiment of the present application includes a terminal device 101 that supports a first user identity and a second user identity, and a second user identity that the terminal device accesses as the second user.
  • An access network device 102 The terminal device 101 and the first access network device 102 may directly communicate with each other, and may also communicate through the forwarding of other devices, which is not specifically limited in the embodiment of the present application.
  • the terminal device 101 is configured to obtain first information or second information, the first information includes serving cell information of the first user identity, and the second information includes a frequency band combination list or a frequency band list supported by the second user identity.
  • the terminal device 101 is also configured to send the first information or the second information to the first access network device 102 as a second user.
  • the first access network device 102 is configured to receive the first information or the second information sent by the terminal device 101 as the second user, and determine whether to add the first cell to the second user according to the first information or the second information Identity serving cell.
  • the terminal device obtains the first information including the serving cell information of the first user identity, and then sends the first information to the first access network device as the second user identity
  • the first access network device can Receive the first information from the terminal device, and determine the information of the serving cell of the first user's identity based on the first information, and then comprehensively consider the serving cell of the first user's identity and the serving cell of the second user's identity to add the second user's identity Service area.
  • the access network device corresponding to one of the SIM cards (such as SIM card A) of the terminal equipment can obtain the information of the serving cell of the other SIM card (ie SIM card B), thereby integrating the information of the serving cells of the two SIM cards, as The user identity corresponding to the SIM card (ie, SIM card A) adds a new serving cell. Therefore, the embodiment of the present application can configure a serving cell that matches the hardware resource of the terminal device for the user identity corresponding to the SIM card of the terminal device, so that the serving cell configured by the terminal device does not exceed the upper limit supported by its hardware resource, and can Make full use of the hardware resources of the terminal equipment.
  • the problem of underutilization of the hardware resources of the terminal device caused by the configuration of the serving cell in the manner of fixed division capability is avoided, so that the data transmission speed of the terminal device can be increased and the user experience can be improved.
  • the terminal device obtains the second information including the frequency band combination list or the frequency band list supported by the second user identity, and then sends the second information to the first access network device as the second user identity, so The first access network device can receive the second information from the terminal device, and configure the serving cell for the second user identity according to the second information.
  • the terminal device since the terminal device has considered the information of the serving cell of the first user identity when acquiring the second information, the first access network device can configure the serving cell for the second user identity according to the second information, so that the terminal device’s
  • the number of serving cells does not exceed the upper limit supported by its hardware resources, and it can also make full use of the hardware resources of the terminal equipment.
  • the problem of underutilization of the hardware resources of the terminal device caused by the configuration of the serving cell in the manner of fixed division capability is avoided, so that the data transmission speed of the terminal device can be increased and the user experience can be improved.
  • the communication system 10 provided in the embodiment of the present application may further include a second access network device 103.
  • the second access network device 103 is a target access network device that the terminal device 101 accesses as the second user.
  • the first access network device 102 is also used to determine to perform handover on the terminal device 101, and send a handover request message to the second access network device 103, where the handover request message carries the first information or the second information.
  • the second access network device 103 is configured to receive a handover request message from the first access network device 102.
  • the second access network device 103 can obtain the first information or the second information through the handover request message. Information, and then a serving cell can be added for the second user identity of the terminal device 101 according to the first information or the second information.
  • the communication system 10 shown in FIG. 1 can be applied to various communication systems, for example: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, Wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), the 4th generation (4G) network medium and long term evolution (long term evolution, LTE) ) System, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interconnected microwave access (worldwide interoperability) For microwave access, WiMAX) communication systems, fifth generation (5G) systems, new radio (NR) or other future networks, etc., the embodiments of the present application do not specifically limit this.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA Wideband code division multiple access
  • GPRS general packet radio service
  • 4G 4th generation
  • LTE long term evolution
  • LTE long term evolution
  • LTE long term evolution
  • LTE long term evolution
  • LTE long term
  • the network element or entity corresponding to the aforementioned terminal device 101 may be a terminal device in the 4G network.
  • the network element or entity corresponding to the access network device 102 may be an evolved NodeB (eNodeB, or eNB) 1 in the 4G network, and the network element or entity corresponding to the second access network device 103 may be 4G. ENB2 in the network.
  • eNodeB evolved NodeB
  • the terminal equipment communicates with the eNB1 or eNB2 through the Uu interface, and the eNB1 communicates with the eNB2 through the X2 interface.
  • the X2 interface here may include an X2-C interface and an X2-U interface, where the X2-C interface is a control plane interface, and the X2-U interface is a user plane interface.
  • the network element or entity corresponding to the above-mentioned terminal device 101 may be a terminal device in the 5G network.
  • the network element or entity corresponding to the first access network device 102 may be the next generation node B (gNB) 1 in the 5G network
  • the network element or entity corresponding to the second access network device 103 may be GNB2 in 5G networks.
  • gNB next generation node B
  • the terminal device communicates with the gNB1 or gNB2 through the Uu interface, and the gNB1 communicates with the gNB2 through the Xn interface.
  • the Xn interface here may include an Xn-U interface and an Xn-C interface, where the Xn-C interface is a control plane interface, and the Xn-U interface is a user plane interface.
  • the related functions of the terminal device 101 or the first access network device 102 in the embodiment of the present application can be implemented by one device, or by multiple devices, or by one or more devices in one device.
  • This function module is implemented, which is not specifically limited in the embodiment of the present application. It is understandable that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or instantiated on a platform (for example, a cloud platform) Virtualization function.
  • FIG. 4 is a schematic structural diagram of a communication device 40 provided by an embodiment of this application.
  • the communication device 40 includes one or more processors 401, a communication line 402, and at least one communication interface (in FIG. 4, the communication interface 404 and one processor 401 are taken as an example for illustration), optional
  • the memory 403 may also be included.
  • the processor 401 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs used to control the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 402 may include a path for connecting different components.
  • the communication interface 404 may be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), and so on.
  • the transceiver module may be a device such as a transceiver or a transceiver.
  • the communication interface 404 may also be a transceiver circuit located in the processor 401 to implement signal input and signal output of the processor.
  • the memory 403 may be a device having a storage function. For example, it can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions. Dynamic storage devices can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage ( Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be stored by a computer Any other media taken, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 402. The memory can also be integrated with the processor.
  • the memory 403 is used to store computer-executed instructions for executing the solution of the present application, and the processor 401 controls the execution.
  • the processor 401 is configured to execute computer-executable instructions stored in the memory 403, so as to implement the communication method provided in the embodiment of the present application.
  • the processor 401 may also perform processing-related functions in the communication method provided in the following embodiments of the present application, and the communication interface 404 is responsible for communicating with other devices or communication networks.
  • the communication interface 404 is responsible for communicating with other devices or communication networks.
  • the computer execution instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.
  • the communication device 40 may include multiple processors, such as the processor 401 and the processor 407 in FIG. 4. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the communication apparatus 40 may further include an output device 405 and an input device 406.
  • the output device 405 communicates with the processor 401, and can display information in a variety of ways.
  • the aforementioned communication device 40 may be a general-purpose device or a dedicated device.
  • the embodiment of the present application does not specifically limit this.
  • the terminal device in the embodiment of the present application may be a device used to implement a wireless communication function, such as a terminal or a chip that can be used in a terminal.
  • the terminal can be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, and a mobile station in a 5G network or a public land mobile network (PLMN) that will be evolved in the future Remote stations, remote terminals, mobile equipment, wireless communication equipment, terminal agents or terminal devices, etc.
  • PLMN public land mobile network
  • the access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial) Wireless terminal in control), wireless terminal in self-driving (self-driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in transportation safety (transportation safety) Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the terminal can be mobile or fixed.
  • the access network device in the embodiment of the present application is a device that connects a terminal device to a wireless network. It can be an eNB in a 4G network, or a gNB in a 5G network, or a PLMN that will evolve in the future.
  • Base stations broadband network service gateways (BNG), convergence switches or non-third generation partnership project (3rd generation partnership project, 3GPP) access equipment, etc.
  • BNG broadband network service gateways
  • 3rd generation partnership project, 3GPP non-third generation partnership project
  • the base stations in the embodiments of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also referred to as small stations), relay stations, access points, etc., which are not specifically limited in the embodiments of the present application .
  • the communication method provided in the embodiments of the present application can be applied to the following three scenarios:
  • the user identity corresponding to one of the SIM cards of the terminal device enters the connected state from the idle state or the inactive state, and the user identity corresponding to the other SIM card is in the connected state, the idle state or the inactive state. Active state.
  • the second user identity corresponding to SIM card B enters the connected state from the idle state, and the first user identity corresponding to SIM card A is in the connected state.
  • Scenario 2 The user identity corresponding to one of the SIM cards of the terminal device is in the connected state, and the serving cell information of the other SIM card is changed.
  • the second user identity corresponding to SIM card B is in the connected state, and the service cell information of SIM card A is changed.
  • the serving cell information reference may be made to the related description in the embodiment shown in FIG. 5, which is not repeated here.
  • Scenario 3 When the user identity corresponding to a certain SIM card of the terminal device is in the connected state, the user identity corresponding to the SIM card is switched from the original serving cell to the target serving cell. For example, when the second user identity corresponding to the SIM card B is in the connected state, the second user identity is handed over from the original serving cell to the target serving cell (that is, the first cell in the embodiment of the present application).
  • the above scenarios are merely exemplary scenarios listed to help understand the embodiments of the present application, and do not constitute a limitation to the present application. It can be understood that when the serving cell of the user identity corresponding to a certain SIM card of the terminal device changes (such as replacing, adding, or deleting one or several serving cells), or the serving cell of the user identity corresponding to a certain SIM card When the information is partially changed, and the changed serving cell information may affect the configuration of the serving cell corresponding to the user identity of another SIM card, even if it does not belong to the above three scenarios, the communication method provided in the embodiments of this application can still be used as The second user identity adds a new serving cell, which is not specifically limited in this application.
  • the communication system shown in FIG. 1 is applied to the 5G network shown in FIG. 3, and the first access network device is gNB1 as an example.
  • the communication method includes the following steps:
  • gNB1 obtains a list of frequency band combinations supported by the terminal device.
  • gNB1 is the access network device that the terminal device accesses as the second user.
  • the frequency band combination (BC) list supported by the terminal device may also be referred to as the carrier aggregation combination list supported by the terminal device, or simply referred to as the frequency band combination supported by the terminal device.
  • the frequency band combination list supported by the terminal device is related to the hardware resources of the terminal device.
  • the frequency band combination list supported by different terminal devices may be different.
  • the frequency band combination in the frequency band combination list supported by each terminal device indicates the hardware resources of the terminal device.
  • Carrier aggregation combination That is, the frequency band combination list supported by the terminal device can indicate the carrier aggregation capability of the terminal device. Therefore, based on the supported frequency band combination list of the terminal device, gNB1 can determine whether the terminal device supports the target cell being added as the serving cell of the terminal device.
  • gNB1 can obtain the terminal device support through step S601 in FIG. 6 A list of frequency band combinations, where step S601 includes:
  • the core network device sends a UE context setup request message (UE context setup request) to gNB1, which carries a list of frequency band combinations supported by the terminal device; gNB1 receives the UE context setup request message from the core network device.
  • UE context setup request UE context setup request
  • the gNB1 may save the capability information of the terminal device, which is not specifically limited in the embodiment of the present application.
  • Steps S602-S605 include:
  • the core network device sends a UE context establishment request message to gNB1; gNB1 receives the UE context establishment request message from the core network device.
  • the gNB1 determines that the UE context establishment request message does not contain the capability information of the terminal device, and sends a UE capability information request message (UE capability enquiry) to the terminal device; the terminal device receives the UE capability information request message from the gNB1.
  • UE capability information request message UE capability enquiry
  • the gNB1 sends a UE context setup response message (UE context setup response) to the core network device; the core network device receives the UE context setup response message from gNB1.
  • UE context setup response UE context setup response
  • the terminal device sends capability information of the terminal device to gNB1, where the capability information includes a list of frequency band combinations supported by the terminal device; gNB1 receives the capability information from the terminal device.
  • the gNB1 may save the capability information of the terminal device, which is not specifically limited in the embodiment of the present application.
  • step S605 gNB1 can obtain a list of frequency band combinations supported by the terminal device. If the subsequent terminal device cuts out of the service range of gNB1 and connects to another gNB, in order to facilitate other gNBs to obtain a list of frequency band combinations supported by the terminal device, in this embodiment of the application, after step S605, the following step S606 may be further included:
  • the gNB1 sends a UE capability indication message to the core network device, where the message carries the capability information of the terminal device; the core network device receives the UE capability indication message from the gNB1.
  • the core network device after the core network device receives the UE capability indication message from the gNB1, it may also save the capability information of the terminal device, which is not specifically limited in the embodiment of the present application.
  • the method of obtaining the frequency band combination list supported by the terminal device shown in FIG. 6 is only an exemplary method provided by the embodiment of the present application, and does not constitute a limitation of the present application. Those skilled in the art may also use other methods to obtain the frequency band combination list supported by the terminal device, which is not specifically limited in the embodiment of the present application.
  • the communication method provided in the embodiment of the present application may further include the following step S502:
  • the terminal device obtains the first information or the second information.
  • the first information includes the serving cell information of the first user identity
  • the second information includes the frequency band combination list or frequency band list supported by the second user identity.
  • the serving cell information of the first user identity includes third information of each serving cell in at least one serving cell of the first user identity.
  • the third information includes at least one of the following information: frequency band information, synchronization signal block (synchronization signal block, SSB) frequency point, cell identification information (for example, physical cell identification), bandwidth information, and bandwidth part (BWP) Configuration information and RRC status information.
  • how the terminal device obtains the frequency band combination list or frequency band list supported by the second user identity depends on specific implementation.
  • one possible implementation is to first remove the frequency band combination corresponding to the serving cell that does not contain the first user identity based on the frequency band combination list supported by the terminal device, and then use the remaining frequency band combination on the basis of the remaining frequency band combination list.
  • delete the frequency bands corresponding to the serving cell of the first user identity to obtain several frequency band combinations and frequency bands.
  • the frequency band combinations constitute a frequency band combination list supported by the second user identity
  • the frequency band constitute a frequency band list supported by the second user identity.
  • the frequency band corresponding to the cell refers to the frequency band to which the physical frequency used by the cell belongs.
  • the frequency band combination list supported by the terminal device is the frequency band combination list shown in Figure 7(a), and the frequency band corresponding to the serving cell of the first user identity is band2.
  • Band combination 2 remove those that do not contain band2 in Figure 7(a).
  • Band combination 2 and then delete band2 in each remaining band combination on this basis, that is, several band combinations and frequency bands as shown in Figure 7(b) are obtained.
  • the frequency band combinations ⁇ band3, band4 ⁇ and ⁇ band1, band3 ⁇ in Figure 7(b) constitute a list of frequency band combinations supported by the second user identity, as shown in Figure 7(c).
  • the frequency bands band1, band3, and band4 in Fig. 7(b) constitute a list of frequency bands supported by the second user identity, as shown in Fig. 7(d).
  • the communication method provided in the embodiment of the present application further includes the following steps S503a-S505a:
  • the terminal device sends a radio resource control (Radio Resource Control, RRC) establishment request message to gNB1 as the second user; gNB1 receives the RRC establishment request message sent by the terminal device as the second user.
  • RRC Radio Resource Control
  • gNB1 sends an RRC setup message to the terminal device; the terminal device receives the RRC setup message from gNB1 as the second user.
  • the terminal device sends an RRC establishment complete message to gNB1 as the second user; gNB1 receives the RRC establishment complete message sent by the terminal device as the second user.
  • the RRC establishment complete message carries the first information or the second information.
  • the communication method provided in the embodiment of the present application further includes the following steps S503b- S505b:
  • the terminal device sends an RRC recovery request message to gNB1 as the second user; gNB1 receives the RRC recovery request message sent by the terminal device as the second user.
  • gNB1 sends an RRC recovery message to the terminal device; the terminal device receives the RRC recovery message from gNB1 as the second user.
  • the terminal device sends an RRC recovery complete message to gNB1 as the second user; gNB1 receives the RRC recovery complete message sent by the terminal device as the second user.
  • the RRC recovery complete message carries the first information or the second information.
  • the communication method provided in the embodiment of the present application further includes the following steps S506a- S507a:
  • the gNB1 determines at least one first frequency band according to the first information.
  • the at least one first frequency band includes a frequency band corresponding to each of the at least one serving cell of the first user identity. For example, when the serving cell of the first user identity is three serving cells, assuming that they are cell1, cell2, and cell3, at least one first frequency band includes the frequency band corresponding to cell1, the frequency band corresponding to cell2, and the frequency band corresponding to cell3.
  • At least one first frequency band includes two or more of the frequency bands.
  • the serving cells cell1 and cell2 both correspond to the frequency band band1
  • the serving cell cell3 corresponds to the frequency band band3, so at least one first frequency band includes band1, band1, and band3.
  • the gNB1 determines whether to add the first cell as a serving cell of the second user identity according to the frequency band combination list supported by the terminal device, at least one first frequency band, at least one second frequency band, and a third frequency band corresponding to the first cell.
  • the at least one second frequency band includes a frequency band corresponding to each of the at least one serving cell of the second user identity. Similar to the first frequency band, if two or more of the serving cells of the second user identity correspond to the same frequency band, then at least one second frequency band includes two or more of the frequency bands.
  • step S507a may specifically include: gNB1 determining whether a frequency band combination composed of at least one first frequency band, at least one second frequency band, and a third frequency band exists in the frequency band combination list supported by the terminal device; If the frequency band combination is in the frequency band combination list supported by the terminal device, gNB1 determines to add the first cell as the serving cell of the second user identity; if the frequency band combination does not exist in the frequency band combination list supported by the terminal device, gNB1 determines that it cannot add the frequency band combination to the second user identity. A cell is added as a serving cell of the second user identity.
  • At least one first frequency band includes frequency band band1
  • at least one second frequency band includes frequency band band2
  • the third frequency band corresponding to the first cell is band3.
  • the frequency band combination list supported by the terminal device includes a frequency band combination ⁇ band1, band2 , Band3 ⁇
  • gNB1 determines that the first cell can be added as a serving cell of the second user identity; on the contrary, if the frequency band combination ⁇ band1, band2, band3 ⁇ does not exist in the frequency band combination list supported by the terminal device, gNB1 determines not The first cell is added as a serving cell of the second user identity.
  • the RRC establishment complete message or the RRC recovery complete message carries the second information
  • the second information includes a list of frequency band combinations supported by the second user identity, as shown in FIG. 5, this
  • the communication method provided in the application embodiment further includes the following step S506b:
  • the gNB1 determines whether to add the first cell as a serving cell of the second user identity according to the frequency band combination list supported by the second user identity, at least one second frequency band, and the third frequency band corresponding to the first cell.
  • step S506b may specifically include: gNB1 determines whether there is at least one frequency band combination composed of the second frequency band and the third frequency band in the frequency band combination list supported by the second user identity; if the second user If the frequency band combination exists in the frequency band combination list supported by the identity, gNB1 determines that the first cell will be added as the serving cell of the second user identity; if the frequency band combination does not exist in the frequency band combination list supported by the second user identity, gNB1 determines that the second user identity cannot add the frequency band combination. A cell is added as a serving cell of the second user identity.
  • At least one second frequency band includes frequency band band2 and the third frequency band is band3, if there is a frequency band combination ⁇ band2, band3 ⁇ in the frequency band combination list supported by the second user identity, gNB1 determines that the first cell can be added to A serving cell of the second user identity; conversely, if the frequency band combination ⁇ band2, band3 ⁇ does not exist in the list of frequency band combinations supported by the second user identity, gNB1 determines that the first cell cannot be added as a serving cell of the second user identity .
  • step S506a-S507a or step S506b in the embodiment of this application, that is, add a single serving cell for the corresponding user identity each time; or Multiple serving cells are added to the corresponding user identity at one time, which is not specifically limited in the embodiment of the present application.
  • the terminal device obtains the first information including the serving cell information of the first user identity, and then sends the first information to the gNB1 as the second user identity
  • the gNB1 can receive the first information from the terminal device, and The information of the serving cell of the first user identity is determined according to the first information, and then the serving cell of the first user identity and the serving cell of the second user identity are comprehensively considered, and the serving cell is added to the second user identity. That is to say, in the embodiment of this application, the terminal device can report the frequency band occupied by one of the SIM cards (such as SIM card A) to the gNB1 accessed by the other SIM card (ie, SIM card B), so that the gNB1 can be based on the SIM card.
  • SIM cards such as SIM card A
  • the frequency band information occupied by card A dynamically adjusts the frequency band available to SIM card B, thereby coordinating the carrier aggregation capabilities of the two SIM cards.
  • the restriction on the data transmission speed of the terminal device caused by the fixed division method to specify the frequency band that can be occupied by each SIM card is avoided, and the data transmission speed of the terminal device can be improved, and the user experience can be improved.
  • the terminal device obtains the second information including the frequency band combination list or frequency band list supported by the second user identity, and then sends the second information to gNB1 as the second user identity, so gNB1 can receive the information from The second information of the terminal device, and configure the serving cell for the second user identity according to the second information.
  • the gNB1 since the terminal device has considered the information of the serving cell of the first user identity when acquiring the second information, the gNB1 may add a serving cell for the second user identity according to the second information.
  • the terminal device can determine the available frequency band of the other SIM card (ie SIM card B) according to the frequency band occupied by one of the SIM cards (such as SIM card A), and aggregate the carrier of the two SIM cards.
  • the capabilities are coordinated, so that the gNB1 accessed by the SIM card B can obtain the frequency band available to the SIM card B, and then add a serving cell for the second user identity based on this.
  • the restriction on the data transmission speed of the terminal device caused by the fixed division method to specify the frequency band that can be occupied by each SIM card is avoided, and the data transmission speed of the terminal device can be improved, and the user experience can be improved.
  • the actions of the terminal device or gNB1 in the above steps S501 to S507a or steps S501 to S506b can be executed by the processor 401 in the communication device 400 shown in FIG. 4 calling the application code stored in the memory 403, and this embodiment There are no restrictions on this.
  • the communication system shown in FIG. 1 is applied to the 5G network shown in FIG. 3, and the first access network device is gNB1 as an example, as shown in FIG.
  • Another communication method includes the following steps:
  • S801-S802 are the same as steps S501-S502.
  • steps S501-S502 please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • the communication method provided in the embodiment of the present application may further include the following step S803:
  • S803 The terminal device sends an RRC message to gNB1 as the second user; gNB1 receives the RRC message sent by the terminal device as the second user.
  • the RRC message carries the first information or the second information.
  • the RRC message may be, for example, a user equipment assistance information (UE assistance information) message, or other RRC messages, which are not specifically limited in the embodiment of the present application.
  • UE assistance information user equipment assistance information
  • the user equipment auxiliary information is used by the terminal device to send auxiliary information to the network device.
  • the change of the serving cell information of the first user identity may include: at least one item of the third information of the at least one serving cell of the first user identity is changed.
  • the change of at least one item in the third information may be, for example, a change in the cell identification information of the serving cell of the first user identity (such as adding, deleting, or changing the serving cell of the first user identity), or the first user
  • the RRC state of the identity changes (for example, the first user identity changes from the idle state to the active state), or the BWP configuration information changes, etc.
  • the protocol stacks within the terminal device can interact with each other.
  • the protocol stack corresponding to the first user identity can send the changed information to the protocol stack corresponding to the second user identity , Thereby triggering the protocol stack corresponding to the second user identity to execute step S803.
  • the gNB1 uses the first information or the second information obtained in step S803 to overwrite the previously obtained first information or second information.
  • the communication method provided in the embodiment of the present application further includes the following steps S804a-S805a:
  • S804a-S805a are the same as steps S506a-S507a.
  • steps S506a-S507a please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • step S804b the communication method provided in the embodiment of the present application further includes the following step S804b:
  • step S804b is the same as step S506b.
  • step S506b For related description, please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • the actions of the terminal device or gNB1 in the above steps S801 to S805a or steps S801 to S804b can be executed by the processor 401 in the communication device 400 shown in FIG. 4 calling the application code stored in the memory 403. This embodiment There are no restrictions on this.
  • the communication system shown in Fig. 1 is applied to the 5G network shown in Fig. 3, the first access network device is gNB1, and the second access network device is gNB2 as an example, as shown in Fig. 9
  • another communication method provided in this embodiment of the application includes the following steps:
  • S901-S902 are the same as steps S501-S502.
  • steps S501-S502 please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • the terminal device sends the first information or the second information to the gNB1 as the second user; the gNB1 receives the first information or the second information sent by the terminal device as the second user.
  • step S903 refer to steps S503a-S505a or steps S503b-S505b in the embodiment shown in FIG. 5, or refer to step S803 in the embodiment shown in FIG. Go into details again.
  • the communication method provided in the embodiment of the present application further includes the following steps S904a-S907a:
  • the gNB1 determines at least one first frequency band according to the first information.
  • the at least one first frequency band includes a frequency band corresponding to each of the at least one serving cell of the first user identity.
  • the gNB1 determines whether there is at least one frequency band combination formed by the first frequency band and the third frequency band corresponding to the first cell in the frequency band combination list supported by the terminal device.
  • the serving cell of the first user identity is cell2
  • the first frequency band corresponding to cell2 is band2
  • the third frequency band corresponding to cell1 of the first cell is band1.
  • the frequency band combination formed by at least one first frequency band and the third frequency band corresponding to the first cell is ⁇ band1, band2 ⁇ .
  • S906a If the frequency band combination exists in the frequency band combination list supported by the terminal device, the gNB1 determines to use the first cell as the target serving cell of the second user identity after the handover.
  • the frequency band combination formed by at least one first frequency band and the third frequency band corresponding to the first cell is ⁇ band1, band2 ⁇
  • the frequency band combination list supported by the terminal device is shown in Figure 7(a)
  • gNB1 determines that the first cell cell1 can be used as the target serving cell of the second user identity.
  • the gNB1 determines not to use the first cell as the target serving cell of the second user identity after the handover.
  • the implementation of this application also includes the following steps S904b-S906b:
  • the gNB1 determines whether the third frequency band corresponding to the first cell exists in the frequency band list supported by the second user identity.
  • S905b If the third frequency band exists in the frequency band list supported by the second user identity, the gNB1 determines to use the first cell as the target serving cell of the second user identity after the handover.
  • the frequency band list supported by the second user identity is the frequency band list shown in FIG. 7(d)
  • the frequency band corresponding to the first cell cell1 is band1.
  • band1 exists in the frequency band list supported by the second user identity
  • gNB1 determines to use the first cell cell1 as the target serving cell of the second user identity after the handover.
  • S906b If the third frequency band does not exist in the frequency band list supported by the second user identity, the gNB1 determines not to use the first cell as the target serving cell of the second user identity after the handover.
  • the communication method provided in the embodiment of the present application further includes the following steps S908-S909:
  • the gNB1 determines to perform handover on the terminal device.
  • gNB1 sends a handover request message to gNB2, where the handover request message carries the first information or the second information; gNB2 receives the handover request message from gNB1.
  • gNB2 is the target access network device that the terminal device accesses as the second user identity, that is, the access network device to which the first cell (also the target serving cell of the second user identity after the handover) belongs.
  • the gNB2 can add a serving cell for the second user identity according to the first information or the second information.
  • a serving cell for the second user identity For specific implementation, refer to steps S506a-S507a or step S506b in the embodiment shown in FIG. 5
  • the middle gNB1 is an implementation of adding a serving cell for the second user identity, which will not be repeated here.
  • the handover request message also includes the information of the first cell, and the information of the first cell is used by the gNB2 to camp the terminal device in the first cell as the second user.
  • a solution in the prior art can also be used to determine whether to use the first cell as the target serving cell of the second user identity after the handover, and then if the gNB1 determines to use the first cell as the second user after the handover
  • the target serving cell of the identity continues to perform the above steps S908-S909, which is not specifically limited in the embodiment of the present application.
  • the terminal device performs handover, which is not specifically limited in the embodiment of the present application.
  • gNB1 receives the first information or second information from the terminal device
  • gNB1 determines to perform handover to the terminal device (such as handover to a cell served by gNB2)
  • gNB1 will send the first or second information to the terminal device.
  • the second information is sent to gNB2.
  • the gNB2 adds a serving cell for the second user identity according to the first information or the second information.
  • gNB1 receives the first information or second information from the terminal device, and then sends the first information or second information to gNB2 after determining to perform handover on the terminal device, gNB2 can obtain the first information or The second information further adds a serving cell for the identity of the second user according to the first information or the second information.
  • the embodiment of the present application can coordinate the carrier aggregation capabilities of two SIM cards (for specific reasons, please refer to the relevant description in the communication method shown in FIG. 5), which avoids the use of fixed divisions in the prior art to specify the capacity of each SIM card.
  • the occupied frequency band restricts the data transmission speed of the terminal device, which can increase the data transmission speed of the terminal device and enhance the user experience.
  • the actions of the terminal device or gNB1 in the above steps S901 to S909 can be executed by the processor 401 in the communication device 400 shown in FIG. 4 calling the application program code stored in the memory 403, and this embodiment does not impose any limitation on this. .
  • FIG. 5, FIG. 8 and FIG. 9 are all based on the application of the communication system shown in FIG. 1 to the 5G network architecture shown in FIG. 3 as an example.
  • the communication system shown in 1 is applied to the 4G network architecture shown in 2 as an example.
  • the corresponding communication method is similar to the method in the above-mentioned embodiment, and only the relevant network elements and the names of messages exchanged between the network elements are required. Just make an adaptive replacement, so I won’t repeat it here.
  • the methods and/or steps implemented by the terminal device can also be implemented by components that can be used in the terminal device; the methods and/or steps implemented by the first access network device can also be implemented It is implemented by components that can be used in the first access network device.
  • an embodiment of the present application also provides a communication device.
  • the communication device may be the terminal device in the foregoing method embodiment, or a device including the foregoing terminal device, or a component that can be used for a terminal device.
  • the communication device may be the first access network device in the foregoing method embodiment, or a device including the foregoing first access network device, or a component that can be used for the first access network device. It can be understood that, in order to realize the above-mentioned functions, the communication device includes hardware structures and/or software modules corresponding to various functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • FIG. 10 shows a schematic structural diagram of a terminal device 100.
  • the terminal device 100 supports a first user identity and a second user identity, and the terminal device 100 includes a processing module 1001 and a transceiver module 1002.
  • the transceiver module 1002 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, transceiver, transceiver or communication interface.
  • the processing module 1001 is used to obtain the first information or the second information.
  • the transceiver module 1002 is configured to send the first information or the second information to the first access network device as the second user.
  • the transceiver module 1002 is further configured to: send an RRC establishment request message to the first access network device as the second user; and receive the RRC establishment request message from the first access network device as the second user. news.
  • the transceiver module 1002 is configured to send the first information or the second information to the first access network device as the second user, which specifically includes: sending the RRC establishment complete message to the first access network device as the second user; The RRC establishment complete message carries the first information or the second information.
  • the transceiver module 1002 is further configured to: send the RRC recovery request message to the first access network device as the second user; and receive the RRC recovery request message from the first access network device as the second user. RRC recovery message.
  • the transceiver module 1002 is configured to send the first information or the second information to the first access network device as the second user, which specifically includes: sending the RRC recovery complete message to the first access network device as the second user, The RRC recovery complete message carries the first information or the second information.
  • the transceiver module 1002 is configured to send the first information or the second information to the first access network device as the second user, including: when the serving cell information of the first user changes , Sending the user equipment auxiliary information to the first access network device as the second user, and the user equipment auxiliary information carries the first information or the second information.
  • the terminal device 100 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here may refer to a specific ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the terminal device 100 may adopt the form of the communication device 40 shown in FIG. 4.
  • the processor 401 in the communication device 40 shown in FIG. 4 may invoke the computer execution instructions stored in the memory 403 to make the communication device 40 execute the communication method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 1001 and the transceiver module 1002 in FIG. 10 may be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling the computer execution instructions stored in the memory 403.
  • the function/implementation process of the processing module 1001 in FIG. 10 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling a computer execution instruction stored in the memory 403, and the function of the transceiver module 1002 in FIG. /The realization process can be realized through the communication interface 404 in the communication device 40 shown in FIG. 4.
  • the terminal device 100 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.
  • FIG. 11 shows a schematic structural diagram of a first access network device 110.
  • the terminal device 110 includes a transceiver module 1101 and a processing module 1102.
  • the transceiver module 1101 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 1101 is used to receive the first information or the second information sent by the terminal device as the second user identity, where the terminal device supports the first user identity and the second user identity; the processing module 1102 is used to Information or second information to determine whether to add the first cell as a serving cell of the second user identity.
  • the processing module 1102 is specifically configured to: determine at least one first frequency band according to the first information, and the at least one first frequency band includes the corresponding one of the at least one serving cell of the first user identity. Frequency band; according to the frequency band combination list supported by the terminal device, at least one first frequency band, at least one second frequency band, and a third frequency band corresponding to the first cell, determine whether to add the first cell to the serving cell of the second user identity.
  • the processing module 1102 is specifically configured to: according to the frequency band combination list supported by the second user identity, at least one second frequency band And the third frequency band corresponding to the first cell, determining whether to add the first cell as a serving cell of the second user identity.
  • the processing module 1102 is specifically configured to: determine whether there is a frequency band corresponding to the first cell in the list of frequency bands supported by the second user identity. The third frequency band; if there is a third frequency band in the frequency band list supported by the second user identity, determine the first cell as the target serving cell of the second user identity after the handover; if the third frequency band does not exist in the frequency band list supported by the second user identity Frequency band, it is determined not to use the first cell as the target serving cell of the second user identity after handover.
  • the processing module 1102 is specifically configured to: determine at least one first frequency band according to the first information, and the at least one first frequency band includes each service in at least one serving cell of the first user identity.
  • the frequency band corresponding to the cell determine whether there is at least one frequency band combination formed by the first frequency band and the third frequency band corresponding to the first cell in the frequency band combination list supported by the terminal device; if the frequency band combination exists in the frequency band combination list supported by the terminal device, determine The first cell is used as the target serving cell of the second user identity after the handover; if the frequency band combination does not exist in the frequency band combination list supported by the terminal device, it is determined not to use the first cell as the target serving cell of the second user identity after the handover.
  • the transceiver module 1101 is further configured to send a handover request message to the second access network device.
  • the handover request message carries the first information or the second information
  • the second access network device is a terminal device with the identity of the second user.
  • Target access network equipment for access is further configured to send a handover request message to the second access network device.
  • the transceiver module 1101 is further configured to: receive the RRC establishment request message sent by the terminal device as the second user; and send the RRC establishment message to the terminal device.
  • the transceiver module 1101 is configured to receive the first information or the second information sent by the terminal device as the second user, specifically including: receiving the RRC establishment complete message sent by the terminal device as the second user, and the RRC establishment complete message carries First information or second information.
  • the transceiver module 1101 is further configured to: receive the RRC recovery request message sent by the terminal device as the second user; and send the RRC recovery message to the terminal device.
  • the transceiver module 1101 is configured to receive the first information or the second information sent by the terminal device as the second user, specifically including: receiving the RRC recovery complete message sent by the terminal device as the second user, and the RRC recovery complete message carries First information or second information.
  • the transceiver module 1101 is configured to receive the first information or the second information sent by the terminal device as the second user, specifically including: receiving the user equipment assistance sent by the terminal device as the second user Information, the user equipment auxiliary information carries the first information or the second information.
  • the first access network device 110 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here may refer to a specific ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the first access network device 110 may adopt the form of the communication device 40 shown in FIG. 4.
  • the processor 401 in the communication device 40 shown in FIG. 4 may invoke the computer execution instructions stored in the memory 403 to make the communication device 40 execute the communication method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 1102 and the transceiver module 1101 in FIG. 11 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling the computer execution instructions stored in the memory 403.
  • the function/implementation process of the processing module 1102 in FIG. 11 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling a computer execution instruction stored in the memory 403, and the function of the transceiver module 1101 in FIG. 11 /The realization process can be realized through the communication interface 404 in the communication device 40 shown in FIG. 4.
  • the first access network device 110 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • one or more of the above modules or units can be implemented by software, hardware or a combination of both.
  • the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow.
  • the processor can be built in SoC (system on chip) or ASIC, or it can be an independent semiconductor chip.
  • SoC system on chip
  • ASIC application specific integrated circuit
  • the processor's internal processing is used to execute software instructions to perform calculations or processing, and may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (programmable logic device) , Or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate array
  • PLD programmable logic device
  • the hardware can be a CPU, a microprocessor, a digital signal processing (digital signal processing, DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.
  • DSP digital signal processing
  • MCU microcontroller unit
  • an artificial intelligence processor an ASIC
  • Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.
  • an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), and the communication device includes a processor for implementing the method in any of the foregoing method embodiments.
  • the communication device further includes a memory.
  • the memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the foregoing method embodiments.
  • the memory may not be in the communication device.
  • the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it can be implemented in the form of a computer program product in whole or in part.
  • 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.
  • 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 may include one or more data storage devices such as servers and data centers that can be integrated with the medium.
  • 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 (SSD)).

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Abstract

本申请实施例提供的通信方法、设备及系统，涉及通信领域，能够提高DSDA模式的终端设备的数据传输速度，提升用户体验。具体包括：终端设备获取第一信息或第二信息，其中，终端设备支持第一用户身份和第二用户身份，第一信息包括第一用户身份的服务小区信息，第二信息包括第二用户身份支持的频带组合列表或频带列表；终端设备以第二用户身份向第一接入网设备发送第一信息或第二信息，第一接入网设备为终端设备以第二用户身份接入的接入网设备。本申请用于为终端设备增加服务小区。

Description

通信方法、设备及系统 技术领域
本申请涉及通信领域，尤其涉及通信方法、设备及系统。
背景技术
当前，越来越多的终端设备支持双卡双激活(dual SIM dual active，DSDA)模式。所谓DSDA模式，是指终端设备可以同时安装两个(subscriber identification module，SIM)卡，即终端设备支持两个用户身份(一个SIM卡对应一个用户身份)，并且两个SIM卡可以同时处于连接态，即终端设备可以同时以两个用户身份收发数据。
对于DSDA模式的终端设备，虽然可以同时以两个用户身份收发数据，但由于终端设备的硬件资源所支持的载波聚合能力是固定的，导致两个SIM卡的载波聚合能力会彼此制约。其中，SIM卡的载波聚合能力具体表现为SIM卡可用的频带。终端设备的两个SIM卡占用的频带构成的组合必须是终端设备支持的频带组合列表中的频带组合。现有技术只能采用固定划分的方式指定DSDA模式的终端设备的每个SIM卡可占用的频带。然而，此种固定划分的方式会大大制约终端设备每个SIM卡的可用频带，进而制约终端设备的数据传输速度。
因此，如何协调DSDA模式的终端设备的两个SIM卡的载波聚合能力，以提高DSDA模式的终端设备的数据传输速度，为用户提供更好的用户体验，是目前亟待解决的问题。
发明内容
本申请实施例提供的通信方法、设备及系统，能够协调DSDA模式的终端设备的两个SIM卡的载波聚合能力，提高DSDA模式的终端设备的数据传输速度，提升用户体验。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供一种通信方法，该方法包括：终端设备获取第一信息或第二信息，其中，该终端设备支持第一用户身份和第二用户身份，第一信息包括第一用户身份的服务小区信息，第二信息包括第二用户身份支持的频带组合列表或频带列表；终端设备以第二用户身份向第一接入网设备发送第一信息或第二信息，第一接入网设备为终端设备以第二用户身份接入的接入网设备。由于本申请实施例中，终端设备获取包括第一用户身份的服务小区信息的第一信息，进而以第二用户身份向第一接入网设备发送第一信息，因此第一接入网设备能够接收来自终端设备的第一信息，并根据第一信息确定第一用户身份的服务小区的信息，进而综合考虑第一用户身份的服务小区和第二用户身份的服务小区，为第二用户身份添加服务小区。也就是说，本申请实施例中，终端设备能够将其中一个SIM卡(如SIM卡A)占用的频带上报给另一个SIM卡(即SIM卡B)接入的接入网设备，从而使得SIM卡B接入的接入网设备可以根据SIM卡A占用的频带信息动态调整SIM卡B可用的频带，从而协调两个SIM卡的载波聚合能力。避免了现有技术中，采用固定划分的方式指定每个SIM卡可占用的频带对终端 设备数据传输速度造成的制约，可以提高终端设备的数据传输速度，提升用户体验。或者，由于本申请实施例中，终端设备获取包括第二用户身份支持的频带组合列表或频带列表的第二信息，进而以第二用户身份向第一接入网设备发送该第二信息，因此第一接入网设备能够接收到来自终端设备的第二信息，并根据第二信息为第二用户身份添加服务小区。其中，由于终端设备在获取第二信息时已经考虑了第一用户身份的服务小区的信息，因此第一接入网设备可以根据第二信息为第二用户身份配置服务小区。也就是说，本申请实施例中，终端设备可以根据其中一个SIM卡(如SIM卡A)占用的频带确定另一个SIM卡(即SIM卡B)的可用频带，对两个SIM卡的载波聚合能力进行了协调，从而使得SIM卡B接入的接入网设备能够获得SIM卡B可用的频带，进而基于此为第二用户身份添加服务小区。避免了现有技术中，采用固定划分的方式指定每个SIM卡可占用的频带对终端设备数据传输速度造成的制约，可以提高终端设备的数据传输速度，提升用户体验。
一种可能的设计中，该方法还包括：终端设备以第二用户身份向第一接入网设备发送无线资源控制(radio resource control，RRC)建立请求消息；终端设备以第二用户身份接收来自于第一接入网设备的RRC建立消息；其中，终端设备以第二用户身份向第一接入网设备发送第一信息或第二信息，包括：终端设备以第二用户身份向第一接入网设备发送RRC建立完成消息，RRC建立完成消息中携带第一信息或第二信息。基于该方案，当终端设备的第二用户身份从空闲态进入到连接态时，终端设备可通过RRC建立完成消息向第一接入网设备发送第一信息或第二信息。
另一种可能的设计中，该方法还包括：终端设备以第二用户身份向第一接入网设备发送RRC恢复请求消息；终端设备以第二用户身份接收来自于第一接入网设备的RRC恢复消息；其中，终端设备以第二用户身份向第一接入网设备发送第一信息或第二信息，包括：终端设备以第二用户身份向第一接入网设备发送RRC恢复完成消息，RRC恢复完成消息中携带第一信息或第二信息。基于该方案，当终端设备的第二用户身份从去激活态进入到连接态时，终端设备可通过RRC恢复完成消息向第一接入网设备发送第一信息或第二信息。
再一种可能的设计中，终端设备以第二用户身份向第一接入网设备发送第一信息或第二信息，包括：当第一用户身份的服务小区信息变更时，终端设备以第二用户身份向第一接入网设备发送用户设备辅助信息，用户设备辅助信息中携带第一信息或第二信息。基于该方案，当终端设备的第一用户身份的服务小区信息变更时，终端设备可通过用户设备辅助信息向第一接入网设备发送第一信息或第二信息。
一种可能的设计中，第一用户身份的服务小区信息包括第一用户身份的每个服务小区的第三信息，第三信息包括以下信息中的至少一项：频带信息、同步信号块频点、小区标识信息、带宽信息、带宽部分配置信息以及RRC状态信息。
一种可能的设计中，第一用户身份的服务小区信息变更包括：第一用户身份的至少一个服务小区的第三信息中的至少一项发生变更。
第二方面，提供一种通信方法，该方法包括：第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，其中，该终端设备支持第一用户身份和第二用户身份，第一信息包括第一用户身份的服务小区信息，第二信息包括第二用户身份 支持的频带组合列表或频带列表；第一接入网设备根据第一信息或第二信息，确定是否将第一小区增加为第二用户身份的服务小区。其中，第二方面提供的通信方法所带来的技术效果可参见上述第一方面提供的通信方法所带来的技术效果，此处不再赘述。
一种可能的设计中，第一接入网设备根据第一信息，确定是否将第一小区增加为第二用户身份的服务小区，包括：第一接入网设备根据第一信息，确定至少一个第一频带，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带；第一接入网设备根据终端设备支持的频带组合列表、至少一个第一频带、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区；其中，至少一个第二频带包括第二用户身份的至少一个服务小区中的每个服务小区对应的频带。基于该方案，第一接入网设备可以为终端设备的第二用户身份增加服务小区，提高终端设备的数据传输速度，提升用户体验。
另一种可能的设计中，当第二信息包括第二用户身份支持的频带组合列表时，第一接入网设备根据第二信息，确定是否将第一小区增加为第二用户身份的服务小区，包括：第一接入网设备根据第二用户身份支持的频带组合列表、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区；其中，至少一个第二频带包括第二用户身份的至少一个服务小区中的每个服务小区对应的频带。基于该方案，第一接入网设备可以为终端设备的第二用户身份增加服务小区，提高终端设备的数据传输速度，提升用户体验。
一种可能的设计中，当第二信息包括第二用户身份支持的频带列表时，第一接入网设备根据第二信息，确定是否将第一小区作为切换后第二用户身份的目标服务小区，包括：第一接入网设备确定第二用户身份支持的频带列表中是否存在第一小区对应的第三频带；若第二用户身份支持的频带列表中存在第三频带，第一接入网设备确定将第一小区作为切换后第二用户身份的目标服务小区；若第二用户身份支持的频带列表中不存在第三频带，第一接入网设备确定不将第一小区作为切换后第二用户身份的目标服务小区。基于该方案，第一接入网设备可以根据第二信息为终端设备的第二用户身份确定切换后的目标服务小区。
另一种可能的设计中，第一接入网设备根据第一信息，确定是否将第一小区作为切换后第二用户身份的目标服务小区，包括：第一接入网设备根据第一信息，确定至少一个第一频带，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带；第一接入网设备确定终端设备支持的频带组合列表中是否存在至少一个第一频带与第一小区对应的第三频带构成的频带组合；若终端设备支持的频带组合列表中存在频带组合，第一接入网设备确定将第一小区作为切换后第二用户身份的目标服务小区；若终端设备支持的频带组合列表中不存在频带组合，第一接入网设备确定不将第一小区作为切换后第二用户身份的目标服务小区。基于该方案，第一接入网设备可以根据第一信息为终端设备的第二用户身份确定切换后的目标服务小区。
一种可能的设计中，该方法还包括：第一接入网设备确定对终端设备执行切换；第一接入网设备向第二接入网设备发送切换请求消息，切换请求消息中携带第一信息或第二信息，第二接入网设备为终端设备以第二用户身份接入的目标接入网设备。基 于该方案，第一接入网设备可通过切换请求消息向第二接入网设备发送第一消息或第二消息，以便终端设备以第二用户身份被切换至第二接入网设备后，第二接入网设备可根据第一信息或第二信息为终端设备的第二用户身份增加服务小区。
一种可能的设计中，该方法还包括：第一接入网设备接收终端设备以第二用户身份发送的RRC建立请求消息；第一接入网设备向终端设备发送RRC建立消息；其中，第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，包括：第一接入网设备接收终端设备以第二用户身份发送的RRC建立完成消息，RRC建立完成消息中携带第一信息或第二信息。基于该方案，第一接入网设备可通过接收终端设备发送的RRC建立完成消息，获取终端设备发送的第一信息或第二信息。
另一种可能的设计中，该方法还包括：第一接入网设备接收终端设备以第二用户身份发送的RRC恢复请求消息；第一接入网设备向终端设备发送RRC恢复消息；其中，第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，包括：第一接入网设备接收终端设备以第二用户身份发送的RRC恢复完成消息，RRC恢复完成消息中携带第一信息或第二信息。基于该方案，第一接入网设备可通过接收终端设备发送的RRC恢复完成消息，获取终端设备发送的第一信息或第二信息。
再一种可能的设计中，第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，包括：第一接入网设备接收终端设备以第二用户身份发送的用户设备辅助信息，用户设备辅助信息中携带第一信息或第二信息。基于该方案，第一接入网设备可通过接收终端设备发送的用户设备辅助信息，获取终端设备发送的第一信息或第二信息。
一种可能的设计中，第一用户身份的服务小区信息包括第一用户身份的每个服务小区的第三信息，第三信息包括以下信息中的至少一项：频带信息、同步信号块频点、小区标识信息、带宽信息、带宽部分配置信息以及RRC状态信息。
第三方面，提供一种终端设备，该终端设备支持第一用户身份和第二用户身份，包括：处理模块以及收发模块。其中，处理模块，用于获取第一信息或第二信息，第一信息包括第一用户身份的服务小区信息，第二信息包括第二用户身份支持的频带组合列表或频带列表；收发模块，用于以第二用户身份向第一接入网设备发送第一信息或第二信息，第一接入网设备为终端设备以第二用户身份接入的接入网设备。
一种可能的设计中，收发模块，还用于以第二用户身份向第一接入网设备发送无线资源控制RRC建立请求消息；以第二用户身份接收来自于第一接入网设备的RRC建立消息。收发模块用于以第二用户身份向第一接入网设备发送第一信息或第二信息，具体包括：以第二用户身份向第一接入网设备发送RRC建立完成消息，RRC建立完成消息中携带第一信息或第二信息。
另一种可能的设计中，收发模块，还用于以第二用户身份向第一接入网设备发送RRC恢复请求消息；以第二用户身份接收来自于第一接入网设备的RRC恢复消息。收发模块用于以第二用户身份向第一接入网设备发送第一信息或第二信息，具体包括：以第二用户身份向第一接入网设备发送RRC恢复完成消息，RRC恢复完成消息中携带第一信息或第二信息。
再一种可能的设计中，收发模块用于以第二用户身份向第一接入网设备发送第一 信息或第二信息，包括：当第一用户身份的服务小区信息变更时，以第二用户身份向第一接入网设备发送用户设备辅助信息，用户设备辅助信息中携带第一信息或第二信息。
一种可能的设计中，第一用户身份的服务小区信息包括第一用户身份的每个服务小区的第三信息，第三信息包括以下信息中的至少一项：频带信息、同步信号块频点、小区标识信息、带宽信息、带宽部分配置信息以及RRC状态信息。
一种可能的设计中，第一用户身份的服务小区信息变更，包括：第一用户身份的至少一个服务小区的第三信息中的至少一项发生变更。
第四方面，提供一种第一接入网设备，该第一接入网设备包括：收发模块以及处理模块。其中，收发模块，用于接收终端设备以第二用户身份发送的第一信息或第二信息，其中，终端设备支持第一用户身份和第二用户身份，第一信息包括第一用户身份的服务小区信息，第二信息包括第二用户身份支持的频带组合列表或频带列表。处理模块，用于根据第一信息或第二信息，确定是否将第一小区增加为第二用户身份的服务小区。
一种可能的设计中，处理模块具体用于：根据第一信息，确定至少一个第一频带，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带；根据终端设备支持的频带组合列表、至少一个第一频带、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区；其中，至少一个第二频带包括第二用户身份的至少一个服务小区中的每个服务小区对应的频带。
另一种可能的设计中，第二信息包括第二用户身份支持的频带组合列表，处理模块具体用于：根据第二用户身份支持的频带组合列表、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区；其中，至少一个第二频带包括第二用户身份的至少一个服务小区中的每个服务小区对应的频带。
一种可能的设计中，第二信息包括第二用户身份支持的频带列表，处理模块具体用于：确定第二用户身份支持的频带列表中是否存在第一小区对应的第三频带；若第二用户身份支持的频带列表中存在第三频带，确定将第一小区作为切换后第二用户身份的目标服务小区；若第二用户身份支持的频带列表中不存在第三频带，确定不将第一小区作为切换后第二用户身份的目标服务小区。
另一种可能的设计中，处理模块具体用于：根据第一信息，确定至少一个第一频带，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带；确定终端设备支持的频带组合列表中是否存在至少一个第一频带与第一小区对应的第三频带构成的频带组合；若终端设备支持的频带组合列表中存在频带组合，确定将第一小区作为切换后第二用户身份的目标服务小区；若终端设备支持的频带组合列表中不存在频带组合，确定不将第一小区作为切换后第二用户身份的目标服务小区。
一种可能的设计中，收发模块，还用于向第二接入网设备发送切换请求消息，切换请求消息中携带第一信息或第二信息，第二接入网设备为终端设备以第二用户身份 接入的目标接入网设备。
一种可能的设计中，收发模块，还用于接收终端设备以第二用户身份发送的RRC建立请求消息；向终端设备发送RRC建立消息；收发模块用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：接收终端设备以第二用户身份发送的RRC建立完成消息，RRC建立完成消息中携带第一信息或第二信息。
另一种可能的设计中，收发模块，还用于接收终端设备以第二用户身份发送的RRC恢复请求消息；向终端设备发送RRC恢复消息。收发模块用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：接收终端设备以第二用户身份发送的RRC恢复完成消息，RRC恢复完成消息中携带第一信息或第二信息。
再一种可能的设计中，收发模块用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：接收终端设备以第二用户身份发送的用户设备辅助信息，用户设备辅助信息中携带第一信息或第二信息。
一种可能的设计中，第一用户身份的服务小区信息包括第一用户身份的每个服务小区的第三信息，第三信息包括以下信息中的至少一项：频带信息、同步信号块频点、小区标识信息、带宽信息、带宽部分配置信息以及RRC状态信息。
第五方面，提供了一种通信装置，包括：处理器和接口电路，接口电路用于接收来自通信装置之外的其它通信装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它通信装置，处理器通过逻辑电路或执行代码指令用于实现上述第一方面或第二方面的方法。
在一种可能的设计中，该通信装置还包括存储器。该存储器用于存储计算机指令，当处理器执行该指令时，以使该通信装置执行上述第一方面或第二方面所述的方法。
第六方面，提供了一种通信装置，包括：处理器；该处理器用于与存储器耦合，并读取存储器中的指令之后，根据该指令执行如上述第一方面或第二方面所述的方法。
在一种可能的设计中，该通信装置还包括存储器，该存储器，用于保存必要的程序指令和数据。该通信装置是芯片系统时，可以由芯片构成，也可以包含芯片和其他分立器件。
结合上述第三方面或第四方面或第五方面或第六方面，在一种可能的设计中，该通信装置可以为上述第三方面中的终端设备，或者可用于上述第三方面中的终端设备的芯片或者芯片系统，或者包含上述终端设备的装置；或者，该通信装置可以为上述第四方面中的第一接入网设备，或者可用于上述第四方面中的第一接入网设备的芯片或者芯片系统，或者包含上述第一接入网设备的装置。
第七方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述第一方面或第二方面所述的方法。
第八方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行上述第一方面或第二方面所述的方法。
第九方面，提供了一种通信系统，该通信系统包括上述第三方面所述的终端设备以及上述第四方面所述的第一接入网设备或至少一个如第五方面或第六方面所述的通信装置。
其中，第二方面至第九方面中任一种设计方式所带来的技术效果可参见上述第一方面中不同设计方式所带来的技术效果，此处不再赘述。
附图说明
图1为本申请实施例提供的一种通信系统的结构示意图；
图2为现有的4G网络架构示意图；
图3为现有的5G网络架构示意图；
图4为本申请实施例提供的通信设备的结构示意图；
图5为本申请实施例提供的通信方法的流程示意图一；
图6为本申请实施例提供的gNB1获取终端设备支持的频带组合列表的方法流程示意图；
图7(a)为本申请实施例提供的一种示例性的终端设备支持的频带组合列表；
图7(b)为本申请实施例提供的一种示例性的第二用户身份支持的频带组合列表和频带列表；
图7(c)为本申请实施例提供的一种示例性的第二用户身份支持的频带组合列表；
图7(d)为本申请实施例提供的一种示例性的第二用户身份支持的频带列表；
图8为本申请实施例提供的通信方法的流程示意图二；
图9为本申请实施例提供的通信方法的流程示意图三；
图10为本申请实施例提供的一种终端设备的结构示意图；
图11为本申请实施例提供的一种第一接入网设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。其中，在本申请的描述中，除非另有说明，“/”表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；本申请中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A，B可以是单数或者复数。并且，在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。同时，在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念，便于理解。
需要说明的是，在本申请实施例中，将终端设备安装一个SIM卡，视为是终端设备支持一个用户身份，例如，安装两个SIM卡的终端设备，视为支持两个用户身份。其中，SIM卡和用户身份是一一对应的关系。本申请实施例主要是以终端设备支持两 个用户身份为例进行说明，这两个用户身份分别称为第一用户身份和第二用户身份。其中，第一用户身份可以理解为终端设备安装了SIM卡A后具有的用户身份，第二用户身份可以理解为终端设备安装了SIM卡B后具有的用户身份。而在其它可能的实施例中，如果终端设备安装两个以上的SIM卡，则终端设备就支持两个以上的用户身份，例如终端设备支持三个用户身份、四个用户身份或更多的用户身份，并可以注册在两个以上的网络中，其中每个用户身份可以注册在一个网络中。其中，当终端设备支持两个以上的用户身份时，其具体实现可以参照终端设备支持两个用户身份的相关描述，本申请实施例对此不进行详细阐述。
其中，当终端设备的用户身份为第一用户身份时，从网络侧的角度来看，终端设备可以理解为一个用户(从协议的角度来看，就是一个终端设备，例如，称为第一用户)；当终端设备的用户身份为第二用户身份时，从网络侧的角度来看，终端设备可以理解为另一个用户(例如，称为第二用户)。终端设备可以以第一用户身份注册在第一网络，以及以第二用户身份注册在第二网络。本申请实施例中，终端设备支持一个用户身份，也可以描述为，终端设备具有一个用户身份。同理，终端设备支持两个用户身份，也可以描述为，终端设备具有两个用户身份。
另外需要说明的是，在本申请的各个实施例中所述的“终端设备的第一用户身份”，可以理解为，“终端设备支持的第一用户身份”，这两种描述方式所指示的内容是相同的，这两种描述方式可以互换。同理，“终端设备的第二用户身份”，可以理解为，“终端设备支持的第二用户身份”，这两种描述方式所指示的内容是相同的，这两种描述方式可以互换。
为叙述方便，本申请的各个实施例中，将DSDA模式的终端设备安装的两个SIM卡分别称为SIM卡A和SIM卡B。相应的，终端设备可以支持两个用户身份，将其中SIM卡A对应的用户身份称为第一用户身份，SIM卡B对应的用户身份称为第二用户身份。
如图1所示，为本申请实施例提供的一种通信系统10，该通信系统10包括支持第一用户身份和第二用户身份的终端设备101和终端设备以第二用户身份接入的第一接入网设备102。终端设备101和第一接入网设备102之间可以直接通信，也可以通过其他设备的转发进行通信，本申请实施例对此不作具体限定。
其中，终端设备101，用于获取第一信息或第二信息，该第一信息包括第一用户身份的服务小区信息，该第二信息包括第二用户身份支持的频带组合列表或频带列表。终端设备101，还用于以第二用户身份向第一接入网设备102发送该第一信息或该第二信息。第一接入网设备102，用于接收终端设备101以第二用户身份发送的第一信息或第二信息，并根据第一信息或第二信息，确定是否将第一小区增加为第二用户身份的服务小区。其中，上述方案的具体实现将在后续方法实施例中详细阐述，在此不予赘述。
由于本申请实施例中，终端设备获取包括第一用户身份的服务小区信息的第一信息，进而以第二用户身份向第一接入网设备发送第一信息，因此第一接入网设备能够接收来自终端设备的第一信息，并根据第一信息确定第一用户身份的服务小区的信息，进而综合考虑第一用户身份的服务小区和第二用户身份的服务小区，为第二用户身份 添加服务小区。即，终端设备其中一个SIM卡(如SIM卡A)对应的接入网设备能够获取另一个SIM卡(即SIM卡B)的服务小区信息，从而综合两个SIM卡的服务小区的信息，为该SIM卡(即SIM卡A)对应的用户身份增加新的服务小区。因此，本申请实施例能够为终端设备的SIM卡对应的用户身份配置与终端设备硬件资源相匹配的服务小区，使得终端设备配置的服务小区既不超出其硬件资源所能支持的上限，又能充分利用终端设备的硬件资源。避免了现有技术中，采用固定划分能力的方式配置服务小区所导致终端设备的硬件资源未得到充分利用的问题，从而可以提高终端设备的数据传输速度，提升用户体验。
或者，由于本申请实施例中，终端设备获取包括第二用户身份支持的频带组合列表或频带列表的第二信息，进而以第二用户身份向第一接入网设备发送该第二信息，因此第一接入网设备能够接收到来自终端设备的第二信息，并根据第二信息为第二用户身份配置服务小区。其中，由于终端设备在获取第二信息时已经考虑了第一用户身份的服务小区的信息，因此第一接入网设备可以根据第二信息为第二用户身份配置服务小区，从而使终端设备的服务小区数量既不超出其硬件资源所能支持的上限，又能充分利用终端设备的硬件资源。避免了现有技术中，采用固定划分能力的方式配置服务小区所导致终端设备的硬件资源未得到充分利用的问题，从而可以提高终端设备的数据传输速度，提升用户体验。
可选的，如图1所示，本申请实施例提供的通信系统10还可以包括第二接入网设备103。其中，第二接入网设备103为终端设备101以第二用户身份接入的目标接入网设备。
第一接入网设备102，还用于确定对终端设备101执行切换，并向第二接入网设备103发送切换请求消息，该切换请求消息中携带第一信息或第二信息。第二接入网设备103，用于接收来自第一接入网设备102的切换请求消息。其中，上述方案的具体实现将在后续方法实施例中详细阐述，在此不予赘述。
基于该通信系统10，第一接入网设备102确定将终端设备切换至第二接入网设备103的小区后，第二接入网设备103通过切换请求消息即可获取第一信息或第二信息，进而可以根据第一信息或第二信息为终端设备101的第二用户身份增加服务小区。
可选的，图1所示的通信系统10可以应用于各种通信系统，例如：全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、第四代(the 4th generation，4G)网络中、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)系统、新无线(new radio，NR)或者未来的其他网络等，本申请实施例对此不作具体限定。
示例性的，假设图1所示的通信系统10应用于目前4G网络中，则如图2所示，上述的终端设备101所对应的网元或者实体可以为4G网络中的终端设备，第一接入 网设备102所对应的网元或者实体可以为4G网络中的演进型基站(evolved NodeB，eNodeB或eNB)1，上述的第二接入网设备103所对应的网元或者实体可以为4G网络中的eNB2。
其中，终端设备与eNB1或者eNB2之间通过Uu接口通信，eNB1与eNB2之间通过X2接口通信。这里的X2接口可以包括X2-C接口和X2-U接口，其中，X2-C接口为控制面接口，X2-U接口为用户面接口。
或者，示例性的，假设图1所示的通信系统10应用于目前的5G网络，则如图3所示，上述的终端设备101所对应的网元或者实体可以为5G网络中的终端设备，第一接入网设备102所对应的网元或者实体可以为5G网络中的下一代节点B(next generation node B，gNB)1，第二接入网设备103所对应的网元或者实体可以为5G网络中的gNB2。
其中，终端设备与gNB1或者gNB2之间通过Uu接口通信，gNB1与gNB2之间通过Xn接口通信。这里的Xn接口可以包括Xn-U接口和Xn-C接口，其中，Xn-C接口为控制面接口，Xn-U接口为用户面接口。
可选的，本申请实施例中的终端设备101或者第一接入网设备102的相关功能可以由一个设备实现，也可以由多个设备共同实现，还可以是由一个设备内的一个或多个功能模块实现，本申请实施例对此不作具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是硬件与软件的结合，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，本申请实施例中的终端设备101或者第一接入网设备102的相关功能可以通过图4中的通信装置40来实现。图4所示为本申请实施例提供的通信装置40的结构示意图。该通信装置40包括一个或多个处理器401，通信线路402，以及至少一个通信接口(图4中仅是示例性的以包括通信接口404，以及一个处理器401为例进行说明)，可选的还可以包括存储器403。
处理器401可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路402可包括一通路，用于连接不同组件之间。
通信接口404，可以是收发模块用于与其他设备或通信网络通信，如以太网，RAN，无线局域网(wireless local area networks，WLAN)等。例如，所述收发模块可以是收发器、收发机一类的装置。可选的，所述通信接口404也可以是位于处理器401内的收发电路，用以实现处理器的信号输入和信号输出。
存储器403可以是具有存储功能的装置。例如可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形 式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路402与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器403用于存储执行本申请方案的计算机执行指令，并由处理器401来控制执行。处理器401用于执行存储器403中存储的计算机执行指令，从而实现本申请实施例中提供的通信方法。
或者，本申请实施例中，也可以是处理器401执行本申请下述实施例提供的通信方法中的处理相关的功能，通信接口404负责与其他设备或通信网络通信，本申请实施例对此不作具体限定。
本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器41可以包括一个或多个CPU，例如图4中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信装置40可以包括多个处理器，例如图4中的处理器401和处理器407。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，通信装置40还可以包括输出设备405和输入设备406。输出设备405和处理器401通信，可以以多种方式来显示信息。
上述的通信装置40可以是一个通用装置或者是一个专用装置。本申请实施例对此不作具体限定。
可选的，本申请实施例中的终端设备，可以是用于实现无线通信功能的设备，例如终端或者可用于终端中的芯片等。其中，终端可以是5G网络或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的用户设备(user equipment，UE)、接入终端、终端单元、终端站、移动站、移动台、远方站、远程终端、移动设备、无线通信设备、终端代理或终端装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备或可穿戴设备，虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。终端可以是移动的，也可以是固定的。
可选的，本申请实施例中的接入网设备，是一种将终端设备接入到无线网络的设备，可以是4G网络中的eNB，或者5G网络中的gNB，或者未来演进的PLMN中的基站，宽带网络业务网关(broadband network gateway，BNG)，汇聚交换机或非第三代合作伙伴项目(3rd generation partnership project，3GPP)接入设备等，本申请实施例对此不作具体限定。可选的，本申请实施例中的基站可以包括各种形式的基站，例如：宏基站，微基站(也称为小站)，中继站，接入点等，本申请实施例对此不作具 体限定。
示例性的，本申请实施例提供的通信方法可以应用于以下三种场景：
场景1、终端设备的其中一个SIM卡对应的用户身份从空闲(idle)态或去激活(inactive)态进入连接(connected)态，另一个SIM卡对应的用户身份处于连接态、空闲态或去激活态。比如，SIM卡B对应的第二用户身份从空闲态进入到连接态，SIM卡A对应的第一用户身份处于连接态。
场景2、终端设备的其中一个SIM卡对应的用户身份处于连接态，另一个SIM卡的服务小区信息变更。比如，SIM卡B对应的第二用户身份处于连接态，SIM卡A的服务小区信息变更。其中，服务小区信息的描述可参考图5所示实施例中的相关描述，在此不予赘述。
场景3、终端设备的某个SIM卡对应的用户身份处于连接态时，该SIM卡对应的用户身份从原服务小区切换至目标服务小区。比如，SIM卡B对应的第二用户身份处于连接态时，第二用户身份从原服务小区切换至目标服务小区(即本申请实施例中的第一小区)。
当然，需要说明的是，以上场景仅仅是为了帮助理解本申请实施例方案而列举的示例性场景，并不构成对本申请的限定。可以理解，当终端设备的某个SIM卡对应的用户身份的服务小区变更时(如替换、增加、删除某个或某几个服务小区)，或者，某个SIM卡对应的用户身份的服务小区信息部分变更，并且变更的服务小区信息可能影响另一个SIM卡对应的用户身份的服务小区的配置时，即便不属于上述三种场景中的场景，仍然可通过本申请实施例提供的通信方法为第二用户身份增加新的服务小区，本申请对此不作具体限定。
下面将结合图1至图4对本申请实施例提供的通信方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
以应用场景为场景1，图1所示的通信系统应用于图3所示的5G网络，第一接入网设备为gNB1为例，如图5所示，为本申请实施例提供的一种通信方法，包括如下步骤：
S501、可选的，gNB1获取终端设备支持的频带组合列表。
其中，gNB1为终端设备以第二用户身份接入的接入网设备。
需要说明的是，终端设备支持的频带组合(band combination，BC)列表也可以称为终端设备支持的载波聚合组合列表，或者简称为终端设备支持的频带组合等。终端设备支持的频带组合列表与终端设备的硬件资源相关，不同的终端设备其支持的频带组合列表可能不同，每个终端设备支持的频带组合列表中的频带组合表示该终端设备硬件资源可支持的载波聚合组合。即，终端设备支持的频带组合列表能够表示终端设备的载波聚合能力。因此，基于终端设备的支持的频带组合列表，gNB1可以确定终端设备是否支持目标小区被增加为终端设备的服务小区。
示例性的，一种可能的实现方式中，若核心网设备保存有该终端设备的能力信息(其中包含终端设备支持的频带组合列表)，则gNB1可以通过图6中的步骤S601获 取终端设备支持的频带组合列表，其中，步骤S601包括：
S601、核心网设备向gNB1发送UE上下文建立请求消息(UE context setup request)，该消息中携带终端设备支持的频带组合列表；gNB1接收来自核心网设备的UE上下文建立请求消息。
可选的，本申请实施例中，gNB1接收来自核心网设备的UE上下文建立请求消息之后，可以保存终端设备的能力信息，本申请实施例对此不作具体限定。
示例性的，另一种可能的实现方式中，若UE上下文请求消息中未携带终端设备的能力信息，则gNB1可以通过图6中的步骤S602-S605获取终端设备支持的频带组合列表，其中，步骤S602-S605包括：
S602、核心网设备向gNB1发送UE上下文建立请求消息；gNB1接收来自核心网设备的UE上下文建立请求消息。
S603、gNB1确定UE上下文建立请求消息中不包含终端设备的能力信息，向终端设备发送UE能力信息请求消息(UE capability enquiry)；终端设备接收来自gNB1的UE能力信息请求消息。
S604、gNB1向核心网设备发送UE上下文建立响应消息(UE context setup response)；核心网设备接收来自gNB1的UE上下文建立响应消息。
S605、终端设备向gNB1发送终端设备的能力信息，该能力信息中包括终端设备支持的频带组合列表；gNB1接收来自终端设备的能力信息。
可选的，本申请实施例中，gNB1接收来自终端设备的能力信息之后，可以保存终端设备的能力信息，本申请实施例对此不作具体限定。
通过上述步骤S602-S605，gNB1可以获取终端设备支持的频带组合列表。若后续终端设备切出gNB1的服务范围，连接至其他gNB，为了便于其他gNB获取终端设备支持的频带组合列表，本申请实施例中，在步骤S605之后，还可以包括如下步骤S606：
S606、gNB1向核心网设备发送UE能力指示消息，该消息中携带终端设备的能力信息；核心网设备接收来自gNB1的UE能力指示消息。
这样，后续其他gNB即可从核心网设备获取终端设备支持的频带组合列表。
可选的，本申请实施例中，核心网设备接收来自gNB1的UE能力指示消息之后，还可保存终端设备的能力信息，本申请实施例对此不作具体限定。
需要说明的是，图6所示的获取终端设备支持的频带组合列表的方法仅仅是本申请实施例提供的一种示例性方法，并不构成对本申请的限定。本领域技术人员也可以采用其他方法获取终端设备支持的频带组合列表，本申请实施例对此不作具体限定。
进一步的，如图5所示，当终端设备的第二用户身份从空闲态或去激活态进入到连接态时，本申请实施例提供的通信方法还可以进一步包括以下步骤S502：
S502、终端设备获取第一信息或第二信息。
其中，第一信息包括第一用户身份的服务小区信息，第二信息包括第二用户身份支持的频带组合列表或频带列表。
可选的，第一用户身份的服务小区信息包括第一用户身份的至少一个服务小区中每个服务小区的第三信息。第三信息包括以下信息中的至少一项：频带信息、同步信号块(synchronization signal block，SSB)频点、小区标识信息(比如，物理小区标识)、 带宽信息、带宽部分(bandwidth part，BWP)配置信息以及RRC状态信息。
其中，终端设备如何获取第二用户身份支持的频带组合列表或频带列表，取决于具体实现。示例性的，一种可能的实现方式是，在终端设备支持的频带组合列表的基础上，先剔除其中不包含第一用户身份的服务小区对应的频带的频带组合，进而在剩余频带组合的基础上，删掉其中第一用户身份的服务小区对应的频带，得到若干频带组合和频带，其中的频带组合构成第二用户身份支持的频带组合列表，频带构成第二用户身份支持的频带列表。其中，小区对应的频带是指小区使用的物理频率所属的频带。示例性的，假设终端设备支持的频带组合列表为图7(a)所示的频带组合列表，第一用户身份的服务小区对应的频带为band2，先剔除图7(a)中不包含band2的频带组合2，进而在此基础上删掉各剩余频带组合中的band2，即得到如图7(b)所示的若干频带组合和频带。图7(b)中的频带组合{band3，band4}和{band1，band3}即构成第二用户身份支持的频带组合列表，如图7(c)所示。图7(b)中的频带band1、band3和band4即构成第二用户身份支持的频带列表，如图7(d)所示。
一种可能的实现方式中，若终端设备的第二用户身份是以空闲态进入连接态的，则如图5所示，本申请实施例提供的通信方法还包括如下步骤S503a-S505a：
S503a、终端设备以第二用户身份向gNB1发送无线资源控制(radio resource control，RRC)建立请求消息；gNB1接收终端设备以第二用户身份发送的RRC建立请求消息。
S504a、gNB1向终端设备发送RRC建立消息；终端设备以第二用户身份接收来自gNB1的RRC建立消息。
S505a、终端设备以第二用户身份向gNB1发送RRC建立完成消息；gNB1接收终端设备以第二用户身份发送的RRC建立完成消息。
其中，RRC建立完成消息中携带第一信息或第二信息。
或者，另一种可能的实现方式中，若终端设备的第二用户身份是以去激活态进入连接态的，则如图5所示，本申请实施例提供的通信方法还包括如下步骤S503b-S505b：
S503b、终端设备以第二用户身份向gNB1发送RRC恢复请求消息；gNB1接收终端设备以第二用户身份发送的RRC恢复请求消息。
S504b、gNB1向终端设备发送RRC恢复消息；终端设备以第二用户身份接收来自gNB1的RRC恢复消息。
S505b、终端设备以第二用户身份向gNB1发送RRC恢复完成消息；gNB1接收终端设备以第二用户身份发送的RRC恢复完成消息。
其中，RRC恢复完成消息中携带第一信息或第二信息。
进一步的，一种可能的实现方式中，若RRC建立完成消息或RRC恢复完成消息中携带的是第一信息，则如图5所示，本申请实施例提供的通信方法还包括如下步骤S506a-S507a：
S506a、gNB1根据第一信息，确定至少一个第一频带。
其中，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带。例如，当第一用户身份的服务小区为3个服务小区，假设分别为cell1、cell2和cell3，则至少一个第一频带包括cell1对应的频带、cell2对应的频带和cell3 对应的频带。
可以理解，若第一用户身份的服务小区中有两个或两个以上的服务小区对应同一频带，则至少一个第一频带包括两个或两个以上的该频带。例如，上一示例中的服务小区cell1和cell2均对应频带band1，服务小区cell3对应频带band3，则至少一个第一频带包括band1、band1和band3。
S507a、gNB1根据终端设备支持的频带组合列表、至少一个第一频带、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区。
其中，至少一个第二频带包括第二用户身份的至少一个服务小区中的每个服务小区对应的频带。与第一频带类似，若第二用户身份的服务小区中有两个或两个以上的服务小区对应同一频带，则至少一个第二频带包括两个或两个以上的该频带。
示例性的，一种可能的实现方式中，步骤S507a具体可以包括：gNB1确定终端设备支持的频带组合列表中是否存在至少一个第一频带、至少一个第二频带以及第三频带构成的频带组合；若终端设备支持的频带组合列表中存在该频带组合，gNB1确定将第一小区增加为第二用户身份的服务小区；若终端设备支持的频带组合列表中不存该频带组合，gNB1确定不能将第一小区增加为第二用户身份的服务小区。
示例性的，假设至少一个第一频带包括频带band1，至少一个第二频带包括频带band2，第一小区对应的第三频带为band3，若终端设备支持的频带组合列表中存在频带组合{band1，band2，band3}，则gNB1确定可以将第一小区增加为第二用户身份的一个服务小区；反之，若终端设备支持的频带组合列表中不存在频带组合{band1，band2，band3}，则gNB1确定不将第一小区增加为第二用户身份的服务小区。
另一种可能的实现方式中，若RRC建立完成消息或RRC恢复完成消息中携带的是第二信息，并且第二信息包括第二用户身份支持的频带组合列表，则如图5所示，本申请实施例提供的通信方法还包括如下步骤S506b：
S506b、gNB1根据第二用户身份支持的频带组合列表、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区。
示例性的，一种可能的实现方式中，步骤S506b具体可以包括：gNB1确定第二用户身份支持的频带组合列表中是否存在至少一个第二频带和第三频带构成的频带组合；若第二用户身份支持的频带组合列表中存在该频带组合，gNB1确定将第一小区增加为第二用户身份的服务小区；若第二用户身份支持的频带组合列表中不存在该频带组合，gNB1确定不能将第一小区增加为第二用户身份的服务小区。
示例性的，假设至少一个第二频带包括频带band2，第三频带为band3，若第二用户身份支持的频带组合列表中存在频带组合{band2，band3}，则gNB1确定可以将第一小区增加为第二用户身份的一个服务小区；反之，若第二用户身份支持的频带组合列表中不存在频带组合{band2，band3}，则gNB1确定不能将第一小区增加为第二用户身份的一个服务小区。
其中，需要说明的是，在为终端设备对应用户身份增加服务小区时，可以按照本申请实施例中步骤S506a-S507a或者步骤S506b所示，即每次为对应用户身份增加单个服务小区；也可以一次为对应用户身份增加多个服务小区，本申请实施例对此不作 具体限定。
由于本申请实施例中，终端设备获取包括第一用户身份的服务小区信息的第一信息，进而以第二用户身份向gNB1发送第一信息，因此gNB1能够接收来自终端设备的第一信息，并根据第一信息确定第一用户身份的服务小区的信息，进而综合考虑第一用户身份的服务小区和第二用户身份的服务小区，为第二用户身份添加服务小区。也就是说，本申请实施例中，终端设备能够将其中一个SIM卡(如SIM卡A)占用的频带上报给另一个SIM卡(即SIM卡B)接入的gNB1，从而使得gNB1可以根据SIM卡A占用的频带信息动态调整SIM卡B可用的频带，从而协调两个SIM卡的载波聚合能力。避免了现有技术中，采用固定划分的方式指定每个SIM卡可占用的频带对终端设备数据传输速度造成的制约，可以提高终端设备的数据传输速度，提升用户体验。
或者，由于本申请实施例中，终端设备获取包括第二用户身份支持的频带组合列表或频带列表的第二信息，进而以第二用户身份向gNB1发送该第二信息，因此gNB1能够接收到来自终端设备的第二信息，并根据第二信息为第二用户身份配置服务小区。其中，由于终端设备在获取第二信息时已经考虑了第一用户身份的服务小区的信息，因此gNB1可以根据第二信息为第二用户身份增加服务小区。也就是说，本申请实施例中，终端设备可以根据其中一个SIM卡(如SIM卡A)占用的频带确定另一个SIM卡(即SIM卡B)的可用频带，对两个SIM卡的载波聚合能力进行了协调，从而使得SIM卡B接入的gNB1能够获得SIM卡B可用的频带，进而基于此为第二用户身份添加服务小区。避免了现有技术中，采用固定划分的方式指定每个SIM卡可占用的频带对终端设备数据传输速度造成的制约，可以提高终端设备的数据传输速度，提升用户体验。
其中，上述步骤S501至S507a或步骤S501至S506b中的终端设备或gNB1的动作可以由图4所示的通信设备400中的处理器401调用存储器403中存储的应用程序代码来执行，本实施例对此不作任何限制。
或者，以应用场景为场景2，图1所示的通信系统应用于图3所示的5G网络，第一接入网设备为gNB1为例，如图8所示，为本申请实施例提供的另一种通信方法，包括如下步骤：
S801-S802、同步骤S501-S502，相关描述可参考图5所示的实施例，在此不再赘述。
进一步的，当终端设备的第一用户身份的服务小区信息变更时，如图8所示，本申请实施例提供的通信方法还可以包括如下步骤S803：
S803、终端设备以第二用户身份向gNB1发送RRC消息；gNB1接收终端设备以第二用户身份发送的RRC消息。
其中，RRC消息中携带第一信息或第二信息。示例性的，RRC消息例如可以是用户设备辅助信息(UE assistance information)消息，也可以是其他RRC消息，本申请实施例对此不作具体限定。其中，用户设备辅助信息用于终端设备向网络设备发送辅助信息。
可选的，本申请实施例中，第一用户身份的服务小区信息变更可以包括：第一用户身份的至少一个服务小区的第三信息中的至少一项发生变更。示例性的，第三信息 中的至少一项发生变更例如可以是第一用户身份的服务小区的小区标识信息发生变更(比如增加、删除或更换第一用户身份的服务小区)，或者第一用户身份的RRC状态发生变更(比如第一用户身份从空闲态变为激活态)，或者BWP配置信息发生变更等。
其中，第一用户身份的服务小区信息的相关描述参考图5所示实施例中的描述。
可选的，终端设备内部的协议栈之间可以交互，当第一用户身份的服务小区信息变更时，第一用户身份对应的协议栈可以将变更的信息发送给第二用户身份对应的协议栈，从而触发第二用户身份对应的协议栈执行步骤S803。
可选的，若在步骤S803之前，gNB1已经获取了第一信息或第二信息，则gNB1用步骤S803中获取的第一信息或第二信息覆盖之前已获取的第一信息或第二信息。
一种可能的实现方式中，若步骤S803中发送的RRC消息中携带的是第一信息，则如图8所示，本申请实施例提供的通信方法还包括如下步骤S804a-S805a：
S804a-S805a、同步骤S506a-S507a，相关描述可参考图5所示的实施例，在此不再赘述。
另一种可能的实现方式中，若步骤S803中发送的RRC消息中携带的是第二信息，则如图8所示，本申请实施例提供的通信方法还包括如下步骤S804b：
S804b、同步骤S506b，相关描述可参考图5所示的实施例，在此不再赘述。
本申请实施例图8所示的通信方法的有益效果请参考上述图5所示通信方法中的描述，此处不再赘述。
其中，上述步骤S801至S805a或步骤S801至S804b中的终端设备或gNB1的动作可以由图4所示的通信设备400中的处理器401调用存储器403中存储的应用程序代码来执行，本实施例对此不作任何限制。
或者，以应用场景为场景3，图1所示的通信系统应用于图3所示的5G网络，第一接入网设备为gNB1，第二接入网设备为gNB2为例，如图9所示，为本申请实施例提供的又一种通信方法，包括如下步骤：
S901-S902、同步骤S501-S502，相关描述可参考图5所示的实施例，在此不再赘述。
S903、终端设备以第二用户身份向gNB1发送第一信息或第二信息；gNB1接收终端设备以第二用户身份发送的第一信息或第二信息。
其中，步骤S903的具体实现可参考图5所示实施例中的步骤S503a-S505a或步骤S503b-S505b，或者，也可参考图8所示实施例中的步骤S803，本申请实施例对此不再赘述。
一种可能的实现方式中，若gNB1接收到终端设备以第二用户身份发送的第一信息，则如图9所示，本申请实施例提供的通信方法还包括如下步骤S904a-S907a：
S904a、gNB1根据第一信息，确定至少一个第一频带。
其中，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带。
S905a、gNB1确定终端设备支持的频带组合列表中是否存在至少一个第一频带与第一小区对应的第三频带构成的频带组合。
示例性的，假设第一用户身份的服务小区为cell2，且cell2对应的第一频带为band2，第一小区cell1对应的第三频带为band1。那么，至少一个第一频带与第一小区对应的第三频带构成的频带组合即{band1，band2}。
S906a、若终端设备支持的频带组合列表中存在该频带组合，gNB1确定将第一小区作为切换后第二用户身份的目标服务小区。
示例性的，接上一示例，假设至少一个第一频带与第一小区对应的第三频带构成的频带组合为{band1，band2}，且终端设备支持的频带组合列表如图7(a)所示，则由于终端设备支持的频带组合列表中存在{band1，band2}的频带组合，因此gNB1确定可以将第一小区cell1作为第二用户身份的目标服务小区。
S907a、若终端设备支持的频带组合列表中不存在该频带组合，gNB1确定不将第一小区作为切换后第二用户身份的目标服务小区。
另一种可能的实现方式中，若gNB1接收到终端设备以第二用户身份发送的第二信息，且第二信息包括第二用户身份支持的频带列表，则如图9所示，本申请实施例提供的通信方法还包括如下步骤S904b-S906b：
S904b、gNB1确定第二用户身份支持的频带列表中是否存在第一小区对应的第三频带。
S905b、若第二用户身份支持的频带列表中存在第三频带，gNB1确定将第一小区作为切换后第二用户身份的目标服务小区。
示例性的，假设第二用户身份支持的频带列表为图7(d)所示的频带列表，第一小区cell1对应的频带为band1。那么，由于第二用户身份支持的频带列表中存在band1，因此gNB1确定将第一小区cell1作为切换后第二用户身份的目标服务小区。
S906b、若第二用户身份支持的频带列表中不存在第三频带，gNB1确定不将第一小区作为切换后第二用户身份的目标服务小区。
进一步的，若gNB1确定将第一小区作为切换后第二用户身份的目标服务小区，如图9所示，本申请实施例提供的通信方法还包括如下步骤S908-S909：
S908、gNB1确定对终端设备执行切换。
S909、gNB1向gNB2发送切换请求消息，该切换请求消息中携带第一信息或第二信息；gNB2接收来自gNB1的切换请求消息。
其中，gNB2为终端设备以第二用户身份接入的目标接入网设备，即第一小区(也是切换后第二用户身份的目标服务小区)所属的接入网设备。
进一步的，gNB2获取第一信息或第二信息之后，可以根据第一信息或第二信息为第二用户身份增加服务小区，具体实现参考图5所示实施例中的步骤S506a-S507a或步骤S506b中gNB1为第二用户身份增加服务小区的实现，在此不再赘述。
当然，本申请实施例中，切换请求消息还包括第一小区的信息，第一小区的信息用于gNB2将终端设备以第二用户身份驻留在第一小区。
可选的，本申请实施例中，也可以采用现有技术的方案确定是否将第一小区作为切换后第二用户身份的目标服务小区，进而若gNB1确定将第一小区作为切换后第二用户身份的目标服务小区，继续执行上述步骤S908-S909，本申请实施例对此不做具体限定。
可选的，本申请实施例中，也可能不是在gNB1确定将第一小区作为切换后第二用户身份的目标服务小区的情况下，才确定对终端设备执行切换，而是通过其他方式确定对终端设备执行切换，本申请实施例对此不作具体限定。总之，本申请实施例中，gNB1接收来自终端设备的第一信息或第二信息之后，若gNB1确定对终端设备执行切换(如切换至gNB2服务的一个小区)，则gNB1将第一信息或第二信息发送给gNB2。进而gNB2根据第一信息或第二信息为第二用户身份增加服务小区。
由于本申请实施例中，gNB1接收来自终端设备的第一信息或第二信息，进而在确定对终端设备执行切换后，将第一信息或第二信息发送给gNB2，gNB2能够获取第一信息或第二信息，进而根据第一信息或第二信息为第二用户身份增加服务小区。本申请实施例能够协调两个SIM卡的载波聚合能力(具体原因可参考上述图5所示通信方法中的相关描述)，避免了现有技术中，采用固定划分的方式指定每个SIM卡可占用的频带对终端设备数据传输速度造成的制约，可以提高终端设备的数据传输速度，提升用户体验。
其中，上述步骤S901至S909中的终端设备或gNB1的动作可以由图4所示的通信设备400中的处理器401调用存储器403中存储的应用程序代码来执行，本实施例对此不作任何限制。
此外，需要说明的是，上述图5、图8及图9所示的实施例均是以图1所示的通信系统应用于如图3所示的5G网络架构为例进行说明，若以图1所示的通信系统应用于如2所示的4G网络架构为例进行说明，则对应的通信方法与上述实施例中的方法类似，仅需将相关网元以及网元之间交互的消息名称进行适应性替换即可，在此不予赘述。
可以理解的是，以上各个实施例中，由终端设备实现的方法和/或步骤，也可以由可用于终端设备的部件实现；由第一接入网设备实现的方法和/或步骤，也可以由可用于第一接入网设备的部件实现。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的，本申请实施例还提供了通信装置，该通信装置可以为上述方法实施例中的终端设备，或者包含上述终端设备的装置，或者为可用于终端设备的部件。或者，该通信装置可以为上述方法实施例中的第一接入网设备，或者包含上述第一接入网设备的装置，或者为可用于第一接入网设备的部件。可以理解的是，该通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
比如，以通信装置为上述方法实施例中的终端设备为例，图10示出了一种终端设备100的结构示意图。该终端设备100支持第一用户身份和第二用户身份，该终端设备100包括处理模块1001和收发模块1002。所述收发模块1002，也可以称为收发单元用以实现收发功能，例如可以是收发电路，收发机，收发器或者通信接口。
其中，处理模块1001，用于获取第一信息或第二信息。收发模块1002，用于以第二用户身份向第一接入网设备发送第一信息或第二信息。
一种可能的实现方式中，收发模块1002还用于：以第二用户身份向第一接入网设备发送RRC建立请求消息；以第二用户身份接收来自于第一接入网设备的RRC建立消息。相应的，收发模块1002用于以第二用户身份向第一接入网设备发送第一信息或第二信息，具体包括：以第二用户身份向第一接入网设备发送RRC建立完成消息，RRC建立完成消息中携带第一信息或第二信息。
或者，另一种可能的实现方式中，收发模块1002还用于：以第二用户身份向第一接入网设备发送RRC恢复请求消息；以第二用户身份接收来自于第一接入网设备的RRC恢复消息。相应的，收发模块1002用于以第二用户身份向第一接入网设备发送第一信息或第二信息，具体包括：以第二用户身份向第一接入网设备发送RRC恢复完成消息，RRC恢复完成消息中携带第一信息或第二信息。
或者，再一种可能的实现方式中，收发模块1002用于以第二用户身份向第一接入网设备发送第一信息或第二信息，包括：当第一用户身份的服务小区信息变更时，以第二用户身份向第一接入网设备发送用户设备辅助信息，用户设备辅助信息中携带第一信息或第二信息。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该终端设备100以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该终端设备100可以采用图4所示的通信装置40的形式。
比如，图4所示的通信装置40中的处理器401可以通过调用存储器403中存储的计算机执行指令，使得通信装置40执行上述方法实施例中的通信方法。
具体的，图10中的处理模块1001和收发模块1002的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现。或者，图10中的处理模块1001的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现，图10中的收发模块1002的功能/实现过程可以通过图4中所示的通信装置40中的通信接口404来实现。
由于本实施例提供的终端设备100可执行上述的通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
或者，比如，以通信装置为上述方法实施例中的第一接入网设备为例，图11示出了一种第一接入网设备110的结构示意图。该终端设备110包括收发模块1101和处理模块1102。所述收发模块1101，也可以称为收发单元用以实现收发功能，例如可以是收发电路，收发机，收发器或者通信接口。
其中，收发模块1101，用于接收终端设备以第二用户身份发送的第一信息或第二信息，其中，终端设备支持第一用户身份和第二用户身份；处理模块1102，用于根据第一信息或第二信息，确定是否将第一小区增加为第二用户身份的服务小区。
一种可能的实现方式中，处理模块1102具体用于：根据第一信息，确定至少一个第一频带，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带；根据终端设备支持的频带组合列表、至少一个第一频带、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区。
或者，另一种可能的实现方式中，当第二信息包括第二用户身份支持的频带组合列表时，处理模块1102具体用于：根据第二用户身份支持的频带组合列表、至少一个第二频带以及第一小区对应的第三频带，确定是否将第一小区增加为第二用户身份的服务小区。
或者，再一种可能的实现方式中，当第二信息包括第二用户身份支持的频带列表时，处理模块1102具体用于：确定第二用户身份支持的频带列表中是否存在第一小区对应的第三频带；若第二用户身份支持的频带列表中存在第三频带，确定将第一小区作为切换后第二用户身份的目标服务小区；若第二用户身份支持的频带列表中不存在第三频带，确定不将第一小区作为切换后第二用户身份的目标服务小区。
或者，又一种可能的实现方式中，处理模块1102具体用于：根据第一信息，确定至少一个第一频带，至少一个第一频带包括第一用户身份的至少一个服务小区中的每个服务小区对应的频带；确定终端设备支持的频带组合列表中是否存在至少一个第一频带与第一小区对应的第三频带构成的频带组合；若终端设备支持的频带组合列表中存在该频带组合，确定将第一小区作为切换后第二用户身份的目标服务小区；若终端设备支持的频带组合列表中不存在该频带组合，确定不将第一小区作为切换后第二用户身份的目标服务小区。
可选的，收发模块1101，还用于向第二接入网设备发送切换请求消息，切换请求消息中携带第一信息或第二信息，第二接入网设备为终端设备以第二用户身份接入的目标接入网设备。
一种可能的实现方式中，收发模块1101还用于：接收终端设备以第二用户身份发送的RRC建立请求消息；向终端设备发送RRC建立消息。相应的，收发模块1101用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：接收终端设备以第二用户身份发送的RRC建立完成消息，RRC建立完成消息中携带第一信息或第二信息。
或者，另一种可能的实现方式中，收发模块1101还用于：接收终端设备以第二用户身份发送的RRC恢复请求消息；向终端设备发送RRC恢复消息。相应的，收发模块1101用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：接收终端设备以第二用户身份发送的RRC恢复完成消息，RRC恢复完成消息中携带第一信息或第二信息。
或者，再一种可能的实现方式中，收发模块1101用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：接收终端设备以第二用户身份发送的用户设备辅助信息，用户设备辅助信息中携带第一信息或第二信息。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该第一接入网设备110以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该第一接入网设备110可以采用图4所示的通信装置40的形式。
比如，图4所示的通信装置40中的处理器401可以通过调用存储器403中存储的计算机执行指令，使得通信装置40执行上述方法实施例中的通信方法。
具体的，图11中的处理模块1102和收发模块1101的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现。或者，图11中的处理模块1102的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现，图11中的收发模块1101的功能/实现过程可以通过图4中所示的通信装置40中的通信接口404来实现。
由于本实施例提供的第一接入网设备110可执行上述的通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
需要说明的是，以上模块或单元的一个或多个可以软件、硬件或二者结合来实现。当以上任一模块或单元以软件实现的时候，所述软件以计算机程序指令的方式存在，并被存储在存储器中，处理器可以用于执行所述程序指令并实现以上方法流程。该处理器可以内置于SoC(片上系统)或ASIC，也可是一个独立的半导体芯片。该处理器内处理用于执行软件指令以进行运算或处理的核外，还可进一步包括必要的硬件加速器，如现场可编程门阵列(field programmable gate array，FPGA)、PLD(可编程逻辑器件)、或者实现专用逻辑运算的逻辑电路。
当以上模块或单元以硬件实现的时候，该硬件可以是CPU、微处理器、数字信号处理(digital signal processing，DSP)芯片、微控制单元(microcontroller unit，MCU)、人工智能处理器、ASIC、SoC、FPGA、PLD、专用数字电路、硬件加速器或非集成的分立器件中的任一个或任一组合，其可以运行必要的软件或不依赖于软件以执行以上方法流程。
可选的，本申请实施例还提供了一种通信装置(例如，该通信装置可以是芯片或芯片系统)，该通信装置包括处理器，用于实现上述任一方法实施例中的方法。在一种可能的设计中，该通信装置还包括存储器。该存储器，用于保存必要的程序指令和数据，处理器可以调用存储器中存储的程序代码以指令该通信装置执行上述任一方法实施例中的方法。当然，存储器也可以不在该通信装置中。该通信装置是芯片系统时，可以由芯片构成，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中 心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (36)

  1. 一种通信方法，其特征在于，所述方法包括：
    终端设备获取第一信息或第二信息，其中，所述终端设备支持第一用户身份和第二用户身份，所述第一信息包括所述第一用户身份的服务小区信息，所述第二信息包括所述第二用户身份支持的频带组合列表或频带列表；
    所述终端设备以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，所述第一接入网设备为所述终端设备以所述第二用户身份接入的接入网设备。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备以所述第二用户身份向所述第一接入网设备发送无线资源控制RRC建立请求消息；
    所述终端设备以所述第二用户身份接收来自于所述第一接入网设备的RRC建立消息；
    其中，所述终端设备以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，包括：
    所述终端设备以所述第二用户身份向所述第一接入网设备发送RRC建立完成消息，所述RRC建立完成消息中携带所述第一信息或所述第二信息。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备以所述第二用户身份向所述第一接入网设备发送RRC恢复请求消息；
    所述终端设备以所述第二用户身份接收来自于所述第一接入网设备的RRC恢复消息；
    其中，所述终端设备以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，包括：
    所述终端设备以所述第二用户身份向所述第一接入网设备发送RRC恢复完成消息，所述RRC恢复完成消息中携带所述第一信息或所述第二信息。
  4. 根据权利要求1所述的方法，其特征在于，所述终端设备以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，包括：
    当所述第一用户身份的服务小区信息变更时，所述终端设备以所述第二用户身份向所述第一接入网设备发送用户设备辅助信息，所述用户设备辅助信息中携带所述第一信息或所述第二信息。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述第一用户身份的服务小区信息包括所述第一用户身份的每个服务小区的第三信息，所述第三信息包括以下信息中的至少一项：频带信息、同步信号块SSB频点、小区标识信息、带宽信息、带宽部分BWP配置信息以及RRC状态信息。
  6. 根据权利要求5所述的方法，其特征在于，所述第一用户身份的服务小区信息变更包括：
    所述第一用户身份的至少一个服务小区的第三信息中的至少一项发生变更。
  7. 一种通信方法，其特征在于，所述方法包括：
    第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，其中，所述终端设备支持第一用户身份和所述第二用户身份，所述第一信息包括所述第一用户身份的服务小区信息，所述第二信息包括所述第二用户身份支持的频带组合列表或频带列表；
    所述第一接入网设备根据所述第一信息或所述第二信息，确定是否将第一小区增加为所述第二用户身份的服务小区。
  8. 根据权利要求7所述的方法，其特征在于，所述第一接入网设备根据所述第一信息，确定是否将第一小区增加为所述第二用户身份的服务小区，包括：
    所述第一接入网设备根据所述第一信息，确定至少一个第一频带，所述至少一个第一频带包括所述第一用户身份的至少一个服务小区中的每个服务小区对应的频带；
    所述第一接入网设备根据所述终端设备支持的频带组合列表、所述至少一个第一频带、至少一个第二频带以及所述第一小区对应的第三频带，确定是否将所述第一小区增加为所述第二用户身份的服务小区；其中，所述至少一个第二频带包括所述第二用户身份的至少一个服务小区中的每个服务小区对应的频带。
  9. 根据权利要求7所述的方法，其特征在于，所述第二信息包括所述第二用户身份支持的频带组合列表；所述第一接入网设备根据所述第二信息，确定是否将第一小区增加为所述第二用户身份的服务小区，包括：
    所述第一接入网设备根据所述第二用户身份支持的频带组合列表、至少一个第二频带以及所述第一小区对应的第三频带，确定是否将所述第一小区增加为所述第二用户身份的服务小区；其中，所述至少一个第二频带包括所述第二用户身份的至少一个服务小区中的每个服务小区对应的频带。
  10. 根据权利要求7所述的方法，其特征在于，所述第二信息包括所述第二用户身份支持的频带列表；所述第一接入网设备根据所述第二信息，确定是否将第一小区作为切换后所述第二用户身份的目标服务小区，包括：
    所述第一接入网设备确定所述第二用户身份支持的频带列表中是否存在所述第一小区对应的第三频带；
    若所述第二用户身份支持的频带列表中存在所述第三频带，所述第一接入网设备确定将所述第一小区作为切换后所述第二用户身份的目标服务小区；
    若所述第二用户身份支持的频带列表中不存在所述第三频带，所述第一接入网设备确定不将所述第一小区作为切换后所述第二用户身份的目标服务小区。
  11. 根据权利要求7所述的方法，其特征在于，所述第一接入网设备根据所述第一信息，确定是否将第一小区作为切换后所述第二用户身份的目标服务小区，包括：
    所述第一接入网设备根据所述第一信息，确定至少一个第一频带，所述至少一个第一频带包括所述第一用户身份的至少一个服务小区中的每个服务小区对应的频带；
    所述第一接入网设备确定所述终端设备支持的频带组合列表中是否存在所述至少一个第一频带与所述第一小区对应的第三频带构成的频带组合；
    若所述终端设备支持的频带组合列表中存在所述频带组合，所述第一接入网设备确定将所述第一小区作为切换后所述第二用户身份的目标服务小区；
    若所述终端设备支持的频带组合列表中不存在所述频带组合，所述第一接入网设 备确定不将所述第一小区作为切换后所述第二用户身份的目标服务小区。
  12. 根据权利要求7-11任一项所述的方法，其特征在于，所述方法还包括：
    所述第一接入网设备向第二接入网设备发送切换请求消息，所述切换请求消息中携带所述第一信息或所述第二信息，所述第二接入网设备为所述终端设备以所述第二用户身份接入的目标接入网设备。
  13. 根据权利要求7-12任一项所述的方法，其特征在于，所述方法还包括：
    所述第一接入网设备接收所述终端设备以第二用户身份发送的无线资源控制RRC建立请求消息；
    所述第一接入网设备向所述终端设备发送RRC建立消息；
    其中，所述第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，包括：
    所述第一接入网设备接收所述终端设备以所述第二用户身份发送的RRC建立完成消息，所述RRC建立完成消息中携带所述第一信息或所述第二信息。
  14. 根据权利要求7-12任一项所述的方法，其特征在于，所述方法还包括：
    所述第一接入网设备接收所述终端设备以所述第二用户身份发送的RRC恢复请求消息；
    所述第一接入网设备向所述终端设备发送RRC恢复消息；
    其中，所述第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，包括：
    所述第一接入网设备接收所述终端设备以所述第二用户身份发送的RRC恢复完成消息，所述RRC恢复完成消息中携带所述第一信息或所述第二信息。
  15. 根据权利要求7-12任一项所述的方法，其特征在于，所述第一接入网设备接收终端设备以第二用户身份发送的第一信息或第二信息，包括：
    所述第一接入网设备接收所述终端设备以所述第二用户身份发送的用户设备辅助信息，所述用户设备辅助信息中携带所述第一信息或所述第二信息。
  16. 根据权利要求7-15任一项所述的方法，其特征在于，所述第一用户身份的服务小区信息包括所述第一用户身份的每个服务小区的第三信息，所述第三信息包括以下信息中的至少一项：频带信息、同步信号块SSB频点、小区标识信息、带宽信息、带宽部分BWP配置信息以及RRC状态信息。
  17. 一种终端设备，其特征在于，所述终端设备支持第一用户身份和第二用户身份，所述终端设备包括：处理模块以及收发模块；
    其中，所述处理模块，用于获取第一信息或第二信息，所述第一信息包括所述第一用户身份的服务小区信息，所述第二信息包括所述第二用户身份支持的频带组合列表或频带列表；
    所述收发模块，用于以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，所述第一接入网设备为所述终端设备以所述第二用户身份接入的接入网设备。
  18. 根据权利要求17所述的终端设备，其特征在于，
    所述收发模块，还用于以所述第二用户身份向所述第一接入网设备发送无线资源 控制RRC建立请求消息；以所述第二用户身份接收来自于所述第一接入网设备的RRC建立消息；
    所述收发模块用于以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，具体包括：
    以所述第二用户身份向所述第一接入网设备发送RRC建立完成消息，所述RRC建立完成消息中携带所述第一信息或所述第二信息。
  19. 根据权利要求17所述的终端设备，其特征在于，
    所述收发模块，还用于以所述第二用户身份向所述第一接入网设备发送RRC恢复请求消息；以所述第二用户身份接收来自于所述第一接入网设备的RRC恢复消息；
    所述收发模块用于以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，具体包括：
    以所述第二用户身份向所述第一接入网设备发送RRC恢复完成消息，所述RRC恢复完成消息中携带所述第一信息或所述第二信息。
  20. 根据权利要求17所述的终端设备，其特征在于，所述收发模块用于以所述第二用户身份向第一接入网设备发送所述第一信息或所述第二信息，包括：
    当所述第一用户身份的服务小区信息变更时，以所述第二用户身份向所述第一接入网设备发送用户设备辅助信息，所述用户设备辅助信息中携带所述第一信息或所述第二信息。
  21. 根据权利要求17-20任一项所述的终端设备，其特征在于，所述第一用户身份的服务小区信息包括所述第一用户身份的每个服务小区的第三信息，所述第三信息包括以下信息中的至少一项：频带信息、同步信号块SSB频点、小区标识信息、带宽信息、带宽部分BWP配置信息以及RRC状态信息。
  22. 根据权利要求21所述的终端设备，其特征在于，所述第一用户身份的服务小区信息变更，包括：
    所述第一用户身份的至少一个服务小区的第三信息中的至少一项发生变更。
  23. 一种第一接入网设备，其特征在于，包括：收发模块以及处理模块；
    其中，所述收发模块，用于接收终端设备以第二用户身份发送的第一信息或第二信息，其中，所述终端设备支持第一用户身份和所述第二用户身份，所述第一信息包括所述第一用户身份的服务小区信息，所述第二信息包括所述第二用户身份支持的频带组合列表或频带列表；
    所述处理模块，用于根据所述第一信息或所述第二信息，确定是否将第一小区增加为所述第二用户身份的服务小区。
  24. 根据权利要求23所述的第一接入网设备，其特征在于，所述处理模块具体用于：
    根据所述第一信息，确定至少一个第一频带，所述至少一个第一频带包括所述第一用户身份的至少一个服务小区中的每个服务小区对应的频带；
    根据所述终端设备支持的频带组合列表、所述至少一个第一频带、至少一个第二频带以及所述第一小区对应的第三频带，确定是否将所述第一小区增加为所述第二用户身份的服务小区；其中，所述至少一个第二频带包括所述第二用户身份的至少一个服务小区中的每个服务小区对应的频带。
  25. 根据权利要求23所述的第一接入网设备，其特征在于，所述第二信息包括所 述第二用户身份支持的频带组合列表；所述处理模块具体用于：
    根据所述第二用户身份支持的频带组合列表、至少一个第二频带以及所述第一小区对应的第三频带，确定是否将所述第一小区增加为所述第二用户身份的服务小区；其中，所述至少一个第二频带包括所述第二用户身份的至少一个服务小区中的每个服务小区对应的频带。
  26. 根据权利要求23所述的第一接入网设备，其特征在于，所述第二信息包括所述第二用户身份支持的频带列表；所述处理模块具体用于：
    确定所述第二用户身份支持的频带列表中是否存在所述第一小区对应的第三频带；
    若所述第二用户身份支持的频带列表中存在所述第三频带，确定将所述第一小区作为切换后所述第二用户身份的目标服务小区；
    若所述第二用户身份支持的频带列表中不存在所述第三频带，确定不将所述第一小区作为切换后所述第二用户身份的目标服务小区。
  27. 根据权利要求23所述的第一接入网设备，其特征在于，所述处理模块具体用于：
    根据所述第一信息，确定至少一个第一频带，所述至少一个第一频带包括所述第一用户身份的至少一个服务小区中的每个服务小区对应的频带；
    确定所述终端设备支持的频带组合列表中是否存在所述至少一个第一频带与所述第一小区对应的第三频带构成的频带组合；
    若所述终端设备支持的频带组合列表中存在所述频带组合，确定将所述第一小区作为切换后所述第二用户身份的目标服务小区；
    若所述终端设备支持的频带组合列表中不存在所述频带组合，确定不将所述第一小区作为切换后所述第二用户身份的目标服务小区。
  28. 根据权利要求23-27任一项所述的第一接入网设备，其特征在于，
    所述收发模块，还用于向第二接入网设备发送切换请求消息，所述切换请求消息中携带所述第一信息或所述第二信息，所述第二接入网设备为所述终端设备以所述第二用户身份接入的目标接入网设备。
  29. 根据权利要求23-27任一项所述的第一接入网设备，其特征在于，
    所述收发模块，还用于接收所述终端设备以第二用户身份发送的无线资源控制RRC建立请求消息；向所述终端设备发送RRC建立消息；
    所述收发模块用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：
    接收所述终端设备以所述第二用户身份发送的RRC建立完成消息，所述RRC建立完成消息中携带所述第一信息或所述第二信息。
  30. 根据权利要求23-27任一项所述的第一接入网设备，其特征在于，
    所述收发模块，还用于接收所述终端设备以所述第二用户身份发送的RRC恢复请求消息；向所述终端设备发送RRC恢复消息；
    所述收发模块用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：
    接收所述终端设备以所述第二用户身份发送的RRC恢复完成消息，所述RRC恢复完成消息中携带所述第一信息或所述第二信息。
  31. 根据权利要求23-27任一项所述的第一接入网设备，其特征在于，所述收发模块用于接收终端设备以第二用户身份发送的第一信息或第二信息，具体包括：
    接收所述终端设备以所述第二用户身份发送的用户设备辅助信息，所述用户设备辅助信息中携带所述第一信息或所述第二信息。
  32. 根据权利要求23-31任一项所述的第一接入网设备，其特征在于，所述第一用户身份的服务小区信息包括所述第一用户身份的每个服务小区的第三信息，所述第三信息包括以下信息中的至少一项：频带信息、同步信号块SSB频点、小区标识信息、带宽信息、带宽部分BWP配置信息以及RRC状态信息。
  33. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求1-6中任一项所述的方法，或者权利要求7-16中任一项所述的方法。
  34. 一种通信装置，其特征在于，包括：处理器和存储器；其中，所述存储器用于存储计算机程序或指令；所述处理器用于执行所述计算机程序或指令以实现如权利要求1-6中任一项所述的方法，或者权利要求7-16中任一项所述的方法。
  35. 一种芯片，其特征在于，所述芯片包括至少一个处理器和通信接口，所述通信接口和所述至少一个处理器耦合，所述至少一个处理器用于运行计算机程序或指令，以实现如权利要求1-6中任一项所述的方法，或者权利要求7-16中任一项所述的方法，所述通信接口用于与所述芯片之外的其它模块进行通信。
  36. 一种通信系统，其特征在于，包括权利要求17-22中任一项所述的终端设备以及权利要求23-32中任一项所述的第一接入网设备。
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