CN110351785B

CN110351785B - Communication method and device thereof

Info

Publication number: CN110351785B
Application number: CN201810283377.0A
Authority: CN
Inventors: 杨阳; 严学强; 谭巍; 廖子龙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-04-02
Filing date: 2018-04-02
Publication date: 2021-04-09
Anticipated expiration: 2038-04-02
Also published as: CN110351785A

Abstract

The embodiment of the application provides a communication method and a device thereof, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives a first message from first access network equipment, wherein the first message is used for informing the terminal equipment to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service; the terminal equipment is accessed to the circuit domain through the first antenna group, and data service is carried out through the second antenna group. By adopting the embodiment of the application, when the terminal equipment initiates the voice service in the 5G network and the mobile communication network developed later, the voice service and the data service can be simultaneously supported.

Description

Communication method and device thereof

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a communication method and a device thereof.

Background

Currently, in a communication system, technologies for carrying voice services mainly include three types: voice service fallback (CSFB), single card dual standby, and voice over LTE (VoLTE) over Long Term Evolution (LTE). The CSFB and the VoLTE belong to a network side scheme, and the single-card dual-standby belongs to a terminal side scheme.

In the case where a terminal device (e.g., a User Equipment (UE)) resides in an LTE network, when the terminal device initiates voice traffic (including calling and called), CSFB techniques are typically employed to carry the voice traffic.

The main idea of the CSFB technique is fourth generation mobile communication (4)^th-generation, 4G) terminal equipment resides in the LTE network and, upon initiation of voice traffic, falls back completely to the second mobile communication (2) by handover^ndGeneration, 2G) or third generation mobile communications (3)^rdGeneration, 3G) network, then performs voice traffic through a circuit switch domain (CS domain) in the 2G or 3G network, and continues unfinished data traffic in the LTE network through a packet switch domain (PS domain) in the 2G/3G network, but the rate of the data traffic may be significantly reduced, even the data traffic may be interruptedAnd (5) transaction.

If the CSFB technique is applied to the fifth generation mobile communication (5)^thGeneration, 5G) network and the mobile communication network developed later, how to ensure the voice service and the data service simultaneously when initiating the voice service is an urgent technical problem to be solved under the condition that the terminal device resides in the 5G network or the mobile communication network developed later.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present application is to provide a communication method and a device thereof, so that when a terminal device initiates a voice service in a 5G network and a mobile communication network developed later, the terminal device can simultaneously support the voice service and a data service.

A first aspect of an embodiment of the present application provides a communication method, including: the method comprises the steps that terminal equipment receives a first message from first access network equipment, wherein the first message is used for informing the terminal equipment to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service; the terminal equipment is accessed to the circuit domain through the first antenna group, and data service is carried out through the second antenna group.

In a first aspect, a terminal device divides an antenna into a first antenna group and a second antenna group by receiving a first message from a first access network device, accesses a circuit domain through the first antenna group, and supports a voice service and a data service simultaneously when the terminal device initiates the voice service in a 5G network and a mobile communication network developed subsequently through a second antenna group data service. The terminal device initiates a voice service, which may be a calling voice service of the terminal device or a called voice service of the terminal device. By implementing the method provided by the first aspect, the quality of the voice service can not be affected, and the influence of the voice service on the data service can be reduced.

The first aspect is applicable to a scenario in which the terminal device is in a connected state, where the connected state refers to that the terminal device establishes a session connection with a core network element corresponding to the first access network device, or that the terminal device establishes a radio resource control connection with the first access network device.

With reference to the first aspect, in a possible implementation manner, the first message includes time information, where the time information is used to instruct the terminal device to access the circuit domain by using the first antenna group, and use the second antenna group to perform the start time of the data service, so that the terminal device uses the circuit domain accessed by using the first antenna group at the start time indicated by the time information, and uses the second antenna group to perform the data service. The time information is indicated by the first access network equipment, so that the first access network equipment determines that the terminal equipment uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the initial time of the data service, thereby facilitating the synchronous or asynchronous adjustment of the first access network equipment and the terminal equipment. The adjustment of the first access network device means that the first access network device adjusts the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the data service, which is performed by the terminal device using the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service.

With reference to the first aspect, in a possible implementation manner, the terminal device sends terminal device capability information to the first access network device, where the terminal device capability information includes capability indication information, and the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, so that the terminal device reports the capability to a core network element corresponding to the first access network device, and specifically to an access management network element corresponding to the first access network device.

The terminal device may send the terminal device capability information to the first access network device before receiving the first message from the first access network device, may also send the terminal device capability information to the first access network device in an attach (attach) process, and may also send the terminal device capability information to the first access network device in a case of receiving a terminal device capability query request message sent by the first access network device.

With reference to the first aspect, in a possible implementation manner, the terminal device sends a request message to the first access network device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the state that the terminal device uses the first antenna group to access the circuit domain, and use the second antenna group to perform the data service. The terminal equipment sends a request message to the first access network equipment to request the first access network equipment to adjust under the scene that the terminal equipment is in a connected state and actively initiates a voice service, namely a calling voice service, and the terminal equipment does not send the request message to the first access network equipment under the scene that the terminal equipment is in the connected state and is called.

The request message is sent independently, and can also be carried in a radio resource control message, a media access control message and other messages.

The terminal device may send a request message to the first access network device before receiving the first message from the first access network device.

With reference to the first aspect, in a possible implementation manner, the terminal device sends a second message to the first access network device, where the second message is used to notify the first access network device to access the circuit domain by using the first antenna group, and the second antenna group is used to perform data service adjustment so that the terminal device uses the first antenna group and the second antenna group to perform data service. The terminal device may send a second message to the first access network device when the voice service release process is ended, so as to notify the first access network device to restore the configuration before accessing the circuit domain through the first antenna group, and adjust the terminal device to perform the data service by using the first antenna group and the second antenna group.

A second aspect of an embodiment of the present application provides a terminal device, where the terminal device has a function of implementing the method provided in the first aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. Based on the same inventive concept, the method and the advantageous effects thereof according to the first aspect can be seen from the principle and the advantageous effects of the terminal device for solving the problems.

In one possible implementation, the terminal device includes: a processing unit and a transceiver unit; a transceiving unit, configured to receive a first message from a first access network device, where the first message is used to notify a terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for a data service; and the processing unit is used for accessing the circuit domain through the first antenna group and carrying out data service through the second antenna group.

The first message includes time information, where the time information is used to instruct the terminal device to use the first antenna group to access the circuit domain, and use the second antenna group to perform the start time of the data service, so that the terminal device uses the first antenna group to access the circuit domain at the start time indicated by the time information, and uses the second antenna group to perform the data service.

The receiving and sending unit is further configured to send terminal device capability information to the first access network device, where the terminal device capability information includes capability indication information, and the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, so that the terminal device reports the capability to a core network element corresponding to the first access network device, and specifically to an access management network element corresponding to the first access network device.

The transceiver unit may send the terminal device capability information to the first access network device before receiving the first message from the first access network device, may also send the terminal device capability information to the first access network device in the attachment process, and may also send the terminal device capability information to the first access network device in the case of receiving the terminal device capability query request message sent by the first access network device.

The receiving and sending unit is further configured to send a request message to the first access network device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the terminal device using the first antenna group to access the circuit domain, and to perform the data service using the second antenna group. The transceiver unit may send a request message to the first access network device prior to receiving the first message from the first access network device.

The receiving and sending unit is further configured to send a second message to the first access network device, where the second message is used to notify the first access network device to access the terminal device to the circuit domain using the first antenna group, and the second antenna group is used to perform data service adjustment so that the terminal device uses the first antenna group and the second antenna group to perform data service. The transceiver unit may send the second message to the first access network device when the voice service is ended, so that the first access network device restores the configuration of the terminal device to the configuration of the terminal device before the terminal device accesses the circuit domain through the first antenna group.

In one possible implementation, the terminal device includes: the terminal equipment comprises a processor, a transceiver and a memory, wherein the transceiver is used for receiving and sending information, the memory stores computer execution instructions, the processor is connected with the memory and the transceiver through a bus, and the processor executes the computer execution instructions stored in the memory so as to enable the terminal equipment to execute the following operations: receiving a first message from a first access network device, wherein the first message is used for informing a terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service; and accessing the circuit domain through the first antenna group, and performing data service through the second antenna group.

The transceiver is configured to send terminal device capability information to the first access network device, where the terminal device capability information includes capability indication information, and the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, so that the terminal device reports the capability to a core network element corresponding to the first access network device, and specifically to an access management network element corresponding to the first access network device.

The transceiver may send the terminal device capability information to the first access network device before receiving the first message from the first access network device, may also send the terminal device capability information to the first access network device in the attachment process, and may also send the terminal device capability information to the first access network device in the case of receiving the terminal device capability query request message sent by the first access network device.

The transceiver may be configured to send a request message to the first access network device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to a state where the terminal device uses the first antenna group to access the circuit domain, and to perform the data service using the second antenna group. The transceiver may send a request message to the first access network device before receiving the first message from the first access network device.

The transceiver may be configured to send a second message to the first access network device, where the second message is used to notify the first access network device to access the terminal device to the circuit domain using the first antenna group, and the second antenna group is used to perform data service adjustment so that the terminal device uses the first antenna group and the second antenna group to perform data service. The transceiver may send a second message to the first access network device when the voice service is ended, so that the first access network device restores the configuration of the terminal device to the configuration of the terminal device before the terminal device accesses the circuit domain through the first antenna group.

A third aspect of the embodiments of the present application provides a communication method, including: the first access network equipment determines that the terminal equipment needs to be informed to adjust the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service; the first access network equipment sends a first message to the terminal equipment, wherein the first message is used for informing the terminal equipment to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service.

In a third aspect, a first access network device sends a first message to a terminal device when determining that it is required to notify the terminal device to adjust a data service using a first antenna group and a second antenna group to a state where the terminal device uses the first antenna group to access a circuit domain and uses the second antenna group to perform the data service, so that the terminal device divides an antenna into the first antenna group and the second antenna group, and accesses the circuit domain through the first antenna group and performs the data service through the second antenna group, thereby enabling the terminal device to simultaneously support a voice service and a data service in a 5G network and a mobile communication network that is subsequently developed when the terminal device initiates the voice service. The terminal device initiates a voice service, which may be a calling voice service of the terminal device or a called voice service of the terminal device.

The third aspect is applicable to a scenario in which the terminal device is in a connected state, where the connected state refers to that the terminal device establishes a session connection with a core network element corresponding to the first access network device, or that the terminal device establishes a radio resource control connection with the first access network device.

The first access network device may be a base station in a 5G network or a base station in a mobile communication network that is developed later.

With reference to the third aspect, in a possible implementation manner, the first message includes time information, where the time information is used to instruct the terminal device to access the circuit domain using the first antenna group and to use the second antenna group to perform the start time of the data service, so that the first access network device and the terminal device may adjust synchronously or asynchronously.

With reference to the third aspect, in a possible implementation manner, the first access network device receives terminal device capability information from the terminal device, where the terminal device capability information includes capability indication information, and the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group. The first access network device can acquire whether the terminal device has the capability through the capability information of the terminal device.

With reference to the third aspect, in a possible implementation manner, the first access network device sends the terminal device capability information to the access management network element when receiving the terminal device capability information, so that the access management network element knows whether the terminal device has the capability.

With reference to the third aspect, in a possible implementation manner, the first access network device receives a second message from the terminal device, where the second message is used to notify the first access network device to access the circuit domain by using the first antenna group, and the second antenna group is used to perform data service adjustment so that the terminal device uses the first antenna group and the second antenna group to perform data service. And under the condition that the first access network equipment receives the second message, restoring the configuration of the terminal equipment to the configuration before the terminal equipment accesses the circuit domain through the first antenna group, and adjusting the terminal equipment to use the first antenna group and the second antenna group for data service.

With reference to the third aspect, in a possible implementation manner, the first access network device receives a request message from the terminal device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the state that the terminal device uses the first antenna group to access the circuit domain, and use the second antenna group to perform the data service. When receiving the request message, the first access network device may determine that it is necessary to notify the terminal device to adjust the data service using the first antenna group and the second antenna group to access the circuit domain using the first antenna group, and perform the data service using the second antenna group, so as to send the first message to the terminal device.

With reference to the third aspect, in a possible implementation manner, the first access network device receives a third message from the access management network element, where the third message is used to notify the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the terminal device using the first antenna group to access the circuit domain, and to perform the data service by using the second antenna group; the third message includes capability indication information. The first access network device may determine that it needs to be notified that the terminal device adjusts the data service using the first antenna group and the second antenna group to the data service using the first antenna group for accessing the circuit domain and the data service using the second antenna group for sending the first message to the terminal device, when receiving the third message.

The third message may include capability indication information, where the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, where the first antenna group is used for accessing a circuit domain, and the second antenna group is used for a data service, so that the first access network device sends the first message to the terminal device.

A fourth aspect of the present embodiment provides a first access network device, where the first access network device has a function of implementing the method provided in the third aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. Based on the same inventive concept, the method and the resulting benefits of the third aspect can be seen from the principle and benefits of the first access network device to solve the problem.

In one possible implementation, the first access network device includes: a processing unit and a transceiver unit; the processing unit is used for determining that the terminal equipment needs to be informed to adjust the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain and the data service using the second antenna group; the receiving and sending unit is used for sending a first message to the terminal device, wherein the first message is used for informing the terminal device to divide the antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service.

The first message includes time information, where the time information is used to instruct the terminal device to access the circuit domain using the first antenna group, and to use the second antenna group to perform the start time of the data service, so that the first access network device and the terminal device can be adjusted synchronously or asynchronously.

The receiving and sending unit is further configured to receive terminal device capability information from the terminal device, where the terminal device capability information includes capability indication information, and the capability indication information is used to indicate that the terminal device has a capability of dividing the antenna into the first antenna group and the second antenna group. The first access network device can acquire whether the terminal device has the capability through the capability information of the terminal device.

The receiving and sending unit is further configured to send the terminal device capability information to the access management network element in the case that the terminal device capability information is received, so that the access management network element knows whether the terminal device has the capability.

The receiving and sending unit is further configured to receive a second message from the terminal device, where the second message is used to notify the first access network device to access the circuit domain by using the first antenna group, and to adjust the data service by using the second antenna group so that the terminal device performs the data service by using the first antenna group and the second antenna group.

The receiving and sending unit is further configured to receive a request message from the terminal device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the state that the terminal device uses the first antenna group to access the circuit domain, and to perform the data service using the second antenna group.

The receiving and sending unit is further configured to receive a third message from the access management network element, where the third message is used to notify the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the terminal device using the first antenna group to access the circuit domain, and to perform the data service by using the second antenna group; the third message includes capability indication information. The first access network device may determine that it needs to be notified that the terminal device adjusts the data service using the first antenna group and the second antenna group to the data service using the first antenna group for accessing the circuit domain and the data service using the second antenna group for sending the first message to the terminal device, when receiving the third message.

In one possible implementation, the first access network device includes: a processor, a transceiver, and a memory, wherein the transceiver is configured to receive and transmit information, the memory stores computer-executable instructions, the processor is coupled to the memory and the transceiver via a bus, and the processor executes the computer-executable instructions stored in the memory to cause the first access network device to: determining that the terminal equipment needs to be informed to adjust the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain, and using the second antenna group to perform the data service; and sending a first message to the terminal device, wherein the first message is used for informing the terminal device to divide the antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service.

The transceiver can be used for receiving terminal device capability information from the terminal device, wherein the terminal device capability information includes capability indication information, and the capability indication information is used for indicating that the terminal device has the capability of dividing the antenna into the first antenna group and the second antenna group. The first access network device can acquire whether the terminal device has the capability through the capability information of the terminal device.

The transceiver may be configured to send the terminal device capability information to the access management network element when receiving the terminal device capability information, so that the access management network element knows whether the terminal device has the capability.

The transceiver may be configured to receive a second message from the terminal device, where the second message is used to notify the first access network device to access the circuit domain by using the first antenna group, and to adjust the data service using the second antenna group to the data service using the first antenna group and the second antenna group.

The transceiver is configured to receive a request message from the terminal device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to a state where the terminal device uses the first antenna group to access the circuit domain, and to perform the data service using the second antenna group.

The transceiver is used for receiving a third message from the access management network element, wherein the third message is used for informing the first access network device to adjust the data service of the terminal device using the first antenna group and the second antenna group to the state that the terminal device uses the first antenna group to access the circuit domain, and the second antenna group is used for data service; the third message includes capability indication information. The first access network device may determine that it needs to be notified that the terminal device adjusts the data service using the first antenna group and the second antenna group to the data service using the first antenna group for accessing the circuit domain and the data service using the second antenna group for sending the first message to the terminal device, when receiving the third message.

A fifth aspect of the embodiments of the present application provides a communication method, including: the mobile switching network element sends a fourth message to the access management network element, wherein the fourth message comprises circuit domain access success indication information which is used for indicating that the terminal equipment successfully accesses the circuit domain; and the mobile switching network element sends a fifth message to the access management network element, wherein the fifth message is used for indicating the terminal equipment to end the voice service, and the fifth message comprises a first location area identification code for the terminal equipment to end the voice service.

The mobile switching network element belongs to a core network element corresponding to the second access network device, that is, a core network element in a 2G or 3G network. The access management network element belongs to a core network element corresponding to the first access network device, that is, a core network element in a 5G network or a subsequently developed mobile communication network.

In the fifth aspect, the mobile switching network element sends circuit domain access success indication information to the access management network element under the condition that the terminal equipment is successfully accessed to the circuit domain, and at the moment, the access management network element does not update the joint location area; and the mobile switching network element sends a fifth message to the access management network element under the condition that the voice service flow is released, and at the moment, the access management network element needs to update the joint location area. The mobile switching network element determines when to perform the joint location area update and when not to perform the joint location area update by sending the fourth message and the fifth message to the access management network element.

The fifth aspect may be applicable to a scenario in which the terminal device is in a connected state, and may also be applicable to a scenario in which the terminal device is in an idle state.

With reference to the fifth aspect, in a possible implementation manner, the fourth message further includes identification information of the terminal device and a second location area identification code, where the second location area identification code is a location area identification code when the terminal device accesses the circuit domain, so that the access management network element obtains the identification information of the terminal device that successfully accesses the circuit domain and the location area identification code when the terminal device accesses the circuit domain.

A sixth aspect of the present embodiment provides a mobile switching network element, where the mobile switching network element has a function of implementing the method provided in the fifth aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. Based on the same inventive concept, the method and the resulting advantages of the fifth aspect can be seen from the principle and advantages of the mobile switching network element for solving the problem.

In one possible implementation, the mobile switching network element includes: a transceiver unit; the receiving and sending unit is used for sending a fourth message to the access management network element, wherein the fourth message comprises circuit domain access success indicating information which is used for indicating that the terminal equipment successfully accesses the circuit domain; and the transceiving unit is further configured to send a fifth message to the access management network element, where the fifth message is used to instruct the terminal device to end the voice service, and the fifth message includes a first location area identification code for the terminal device to end the voice service.

The fourth message further includes identification information of the terminal device and a second location area identification code, where the second location area identification code is a location area identification code when the terminal device accesses the circuit domain, so that the access management network element obtains the identification information of the terminal device successfully accessing the circuit domain and the location area identification code when the terminal device accesses the circuit domain.

In one possible implementation, the mobile switching network element includes: a processor, a transceiver and a memory, wherein the transceiver is used for receiving and transmitting information, the memory stores computer execution instructions, the processor is connected with the memory and the transceiver through a bus, and the processor executes the computer execution instructions stored in the memory to make the mobile switching network element execute the following operations: the control transceiver sends a fourth message to the access management network element, wherein the fourth message comprises circuit domain access success indication information which is used for indicating that the terminal equipment is successfully accessed into the circuit domain; and the control transceiver sends a fifth message to the access management network element, wherein the fifth message is used for indicating the terminal equipment to end the voice service and comprises a first location area identification code for the terminal equipment to end the voice service.

A seventh aspect of the embodiments of the present application provides a communication method, including: the access management network element receives a fourth message from the mobile switching network element, wherein the fourth message comprises circuit domain access success indication information which is used for indicating that the terminal equipment successfully accesses the circuit domain; the access management network element receives a fifth message from the mobile switching network element, wherein the fifth message is used for indicating the terminal equipment to end the voice service and comprises a first location area identification code of the terminal equipment for ending the voice service; and the access management network element updates the combined location area according to the first location area identification code.

A seventh aspect is a method of an access management network element side corresponding to the fifth aspect, where the access management network element does not perform a joint location area update when receiving the fourth message, and performs the joint location area update when receiving the fifth message.

The seventh aspect may be applicable to a scenario in which the terminal device is in a connected state, or may be applicable to a scenario in which the terminal device is in an idle state.

With reference to the seventh aspect, in a possible implementation manner, the access management network element receives the first paging request message from the mobile switching network element. Under the condition that the terminal equipment is called, the access management network element receives the first paging request message, namely, other terminal equipment calls the terminal equipment, and the terminal equipment is resident in a 5G network or a mobile communication network developed later, so that the access management network element is required to perform paging.

With reference to the seventh aspect, in a possible implementation manner, the access management network element sends capability indication information to the first access network device, where the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, the first antenna group is used to access a circuit domain, and the second antenna group is used for a capability of a data service. And under the condition that the terminal equipment is called in a connected state or an idle state, the access management network element sends the capability indication information to the first access network equipment so that the first access network equipment can know that the terminal equipment has the capability.

With reference to the seventh aspect, in a possible implementation manner, the capability indication information is carried in a third message, that is, the first access network device is notified through the third message, where the terminal device has the capability, the third message is a message sent by the access management network element to the first access network device, and the message is used by the first access network device to determine that it needs to be notified that the terminal device adjusts the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain, and the second antenna group is used to perform the data service.

With reference to the seventh aspect, in a possible implementation manner, the capability indication information is carried in the second paging request message, that is, the first access network device is notified through the second paging request message, the terminal device has the capability, and the second paging request message is a message sent by the access management network element to the first access network device, and the message is used for paging the terminal device.

With reference to the seventh aspect, in a possible implementation manner, the access management network element sends, to the first access network device, circuit domain access success indication information. If the terminal device initiates a data service in the process of performing a voice service, the access management network element sends circuit domain access success indication information to the first access network device, so as to indicate that the terminal device successfully accesses the circuit domain, that is, indicate that the terminal device successfully accesses the circuit domain through the first antenna group.

An eighth aspect of the present embodiment provides an access management network element, where the access management network element has a function of implementing the method provided in the seventh aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. Based on the same inventive concept, the method and the resulting advantages of the seventh aspect can be seen from the principle and the advantageous effects of the access management network element for solving the problem.

In one possible implementation manner, the access management network element includes: a transceiving unit and a processing unit; the receiving and sending unit is used for receiving a fourth message from the mobile switching network element, wherein the fourth message comprises circuit domain access success indicating information which is used for indicating that the terminal equipment successfully accesses the circuit domain; the receiving and sending unit is further configured to receive a fifth message from the mobile switching network element, where the fifth message is used to instruct the terminal device to end the voice service, and the fifth message includes a first location area identification code for the terminal device to end the voice service; and the processing unit is used for updating the joint location area according to the first location area identification code.

Wherein, the transceiver unit is further configured to receive a first paging request message from the mobile switching network element. In the case that the terminal device is called, the transceiver unit receives the first paging request message, that is, other terminal devices call the terminal device, and since the terminal device resides in the 5G network or a mobile communication network developed later, an access management network element is required to perform paging.

The receiving and sending unit is further configured to send capability indication information to the first access network device, where the capability indication information is used to indicate that the terminal device has a capability of dividing the antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for a capability of a data service. And under the condition that the terminal equipment is called in a connected state or an idle state, the transceiver unit sends the capability indication information to the first access network equipment so that the first access network equipment can know that the terminal equipment has the capability.

The terminal device has the capability, the third message is a message sent to the first access network device by the access management network element, and the message is used for the first access network device to determine that the terminal device needs to be notified to adjust the data service using the first antenna group and the second antenna group to the circuit domain using the first antenna group, and to perform the data service using the second antenna group.

The terminal device has the capability, and the second paging request message is a message sent by the access management network element to the first access network device, and the message is used for paging the terminal device.

The receiving and sending unit is further configured to send circuit domain access success indication information to the first access network device. If the terminal device initiates a data service in the process of performing a voice service, the transceiver unit sends circuit domain access success indication information to the first access network device, so as to indicate that the terminal device successfully accesses the circuit domain, that is, indicate that the terminal device successfully accesses the circuit domain through the first antenna set.

In one possible implementation manner, the access management network element includes: a processor, a transceiver and a memory, wherein the transceiver is used for receiving and transmitting information, the memory stores computer execution instructions, the processor is connected with the memory and the transceiver through a bus, and the processor executes the computer execution instructions stored in the memory to make the access management network element execute the following operations: receiving a fourth message from the mobile switching network element, wherein the fourth message comprises circuit domain access success indication information which is used for indicating that the terminal equipment successfully accesses the circuit domain; receiving a fifth message from the mobile switching network element, wherein the fifth message is used for indicating the terminal equipment to end the voice service and comprises a first location area identification code of the terminal equipment for ending the voice service; and updating the joint location area according to the first location area identification code.

Wherein the transceiver is operable to receive a first paging request message from a mobile switching network element. In the case that the terminal device is called, the transceiver receives the first paging request message, that is, there is another terminal device calling the terminal device, and since the terminal device resides in the 5G network or a mobile communication network developed later, an access management network element is required for paging.

The transceiver may be configured to send capability indication information to the first access network device, where the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for a capability of a data service. And under the condition that the terminal equipment is called in a connected state or an idle state, the transceiver sends the capability indication information to the first access network equipment, so that the first access network equipment can know that the terminal equipment has the capability.

The transceiver may be configured to send circuit domain access success indication information to the first access network device. If the terminal equipment initiates a data service in the process of performing a voice service, the transceiver sends circuit domain access success indication information to the first access network equipment, so as to indicate that the terminal equipment successfully accesses the circuit domain, that is, indicate that the terminal equipment successfully accesses the circuit domain through the first antenna group.

A ninth aspect of embodiments of the present application provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the first aspect.

A tenth aspect of the present invention provides a computer-readable storage medium, having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the third aspect.

An eleventh aspect of embodiments of the present application provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the fifth aspect.

A twelfth aspect of embodiments of the present application provides a computer-readable storage medium, having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the seventh aspect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1 is a schematic diagram of a network architecture using CSFB technique;

fig. 2 is a schematic diagram of a network architecture according to an embodiment of the present application;

fig. 3 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a communication method according to a second embodiment of the present application;

fig. 5 is a flowchart illustrating a communication method according to a third embodiment of the present application;

fig. 6 is a schematic flowchart of a communication method according to a fourth embodiment of the present application;

fig. 7 is a schematic logical structure diagram of a communication device according to an embodiment of the present application;

fig. 8 is a simplified block diagram of a communication device according to an embodiment of the present disclosure.

Detailed Description

Fig. 1 is a schematic diagram of a network architecture using CSFB technology. The network architecture includes a 2G or 3G network architecture and a 4G network architecture. The 2G or 3G network architecture includes a 2G or 3G access network 101, a Mobile Switching Center (MSC) 102, and a Home Location Register (HLR) 103; the 4G network architecture includes a 4G access network 105, a Mobile Management Entity (MME) 106, a Home Subscriber Server (HSS) 107, a Serving Gateway (SGW) 108, and a packet data network gateway (PDN gateway) 109. The network architecture shown in fig. 1 further includes other networks 104, which are used for providing data such as images, texts, audio and video for the terminal device.

The 2G access network 101 may include a Base Station Controller (BSC), the 3G access network 101 may include a Radio Network Controller (RNC), and the 4G access network 105 may include an evolved Node B (eNB).

The CSFB technique mainly relates to a combined registration procedure, a CSFB calling procedure, a CSFB called procedure, and a detach (detach) procedure.

At present, after a voice call is initiated, a voice service falls back to a circuit domain (2G or 3G network), a data service cannot continue to use a 4G network, and an unfinished data service in the 4G network before the 2G or 3G network is used for connection, so that the rate of the data service is reduced, and even the data service is interrupted. If the CSFB technique is applied to the 5G network and the mobile communication network that is developed later, how to ensure the voice service and the data service simultaneously when the terminal device is resident in the 5G network or the mobile communication network that is developed later is a technical problem to be solved urgently.

In view of this, embodiments of the present application provide a communication method and apparatus thereof, so that in a 5G network and a mobile communication network developed later, when a terminal device initiates a voice service, the terminal device can simultaneously support the voice service and a data service.

Please refer to fig. 2, which is a schematic diagram of a network architecture according to an embodiment of the present application. The network architecture comprises a first access network device 201, an access management network element 202, a session management network element 203, a user plane network element 204, a second access network device 206 and a mobile switching network element 207. The network architecture shown in fig. 2 further includes a Data Network (DN) 205, which is a data network for providing service to the terminal device.

The first access network device 201 may be a base station in a 5G network, such as a gNB, or a base station in a mobile communication network that is developed later. The first access network device 201 is configured to access a first core network, where the first core network is a core network in a 5G network or a core network in a subsequently developed mobile communication network, and may include an access management network element 202, a session management network element 203, and a user plane network element 204. The first core network also includes other network elements.

The access management network element 202 is responsible for access management and mobility management of the terminal device, and may be an access and mobility management function (AMF) network element in a 5G network, or a network element responsible for access management and mobility management of the terminal device in a subsequently developed mobile communication network. The name of the access management network element does not constitute a limitation to the embodiments of the present application, and other network elements for implementing access management and mobility management may be regarded as the access management network elements mentioned in the present application.

The session management network element 203 is configured to manage a session of a terminal device, and may be a Session Management Function (SMF) network element in a 5G network, or a network element in a subsequently developed mobile communication network and responsible for managing the session of the terminal device.

The user plane network element 204 is configured to perform packet forwarding according to a routing forwarding rule of the session management network element 203, and may be a User Plane Function (UPF) network element in a 5G network, or a network element in charge of packet forwarding in a subsequently developed mobile communication network.

It should be noted that, in this embodiment of the application, the first access network device takes a base station in a 5G network as an example, and the access management network element takes an AMF network element as an example for description.

And the second access network equipment is used for accessing the second core network. The second access network device may be a base station in a 2G network or a base station in a 3G network. The second core network is a core network in a 2G or 3G network, and may include the mobile switching network element 207, and may also include other network elements.

The mobile switching network element 207 is responsible for services (including voice services, short message services, etc.) of a circuit domain and mobility management of a terminal device, and may be an MSC in a 2G or 3G network, or an enhanced-mobile switching center (e-MSC), etc. The MSC and VLR may be combined in one device, and the mobile switching network element 207 may be a combination of the MSC and VLR.

Among them, a terminal device, also called a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like.

The terminal device related in the embodiment of the present application is a terminal device that can be applied in a 5G network or a future communication system, and the terminal device can use all antennas thereof to perform a voice service or a data service. For example, all antennas of the terminal device include two transmitting antennas and four receiving antennas, and the terminal device performs voice service or data service using the two transmitting antennas and the four receiving antennas. The terminal device may use a part of its antennas to perform voice services and a part of its antennas to perform data services, for example, all antennas of the terminal device include two transmitting antennas and four receiving antennas, the terminal device uses one transmitting antenna and two receiving antennas to perform voice services, and uses the remaining one transmitting antenna and the remaining two receiving antennas to perform data services. The number of antennas included in the terminal device may also vary, for example, in one scenario, the number of antennas included in the terminal device is two transmitting antennas and four receiving antennas, and in another scenario, the number of antennas included in the terminal device is one transmitting antenna and two receiving antennas.

It should be noted that, the number and the form of each network element in the network architecture shown in fig. 2 do not limit the embodiment of the present application, and the network elements included in the first core network and the second core network are not limited to those shown in fig. 2, and in practical applications, the first core network and the second core network may further include other network elements.

The communication method provided by the embodiment of the present application will be described in detail below, and the method provided by the embodiment of the present application will be described in four embodiments. The first embodiment relates to a connected terminal device initiating a calling voice service. The second embodiment relates to a called voice service of a connected terminal device. The third embodiment relates to the idle terminal equipment initiating the calling voice service. The fourth embodiment relates to the called voice service of the idle terminal equipment. The scenes of the four embodiments are that the terminal equipment resides in a 5G network or a mobile communication network developed later.

The connected terminal device means that the terminal device resides in the 5G network, completes a random access procedure, successfully establishes Radio Resource Control (RRC) connection with a base station in the 5G network, and establishes a session with a User Plane Function (UPF) network element in the 5G core network. The idle state terminal device refers to that the terminal device resides in the 5G network, does not establish an RRC connection with a base station in the 5G network, or the RRC connection is released, or a session with a UPF network element is not established.

In the embodiment of the present application, the terminal device has a capability, where the capability means that the terminal device can divide its antenna into at least two antenna groups, where one antenna group is used for accessing a circuit domain, and the other antenna group is used for performing a data service. The antenna group used by the access circuit domain is different from the antenna group used for data service, namely, no overlapped antenna exists. For example, a terminal device may support two transmit antennas and two receive antennas, two transmit antennas and four receive antennas, or four transmit antennas and eight receive antennas, and so on.

Referring to fig. 3, a flow chart of a communication method according to an embodiment of the present application is shown, where the method includes, but is not limited to, the following steps:

step S301, the terminal device sends a request message to the first access network device. Accordingly, the first access network device receives the request message from the terminal device.

In one possible implementation, the terminal device reports terminal device capability (UE capability) information to the first access network device. In this embodiment, the terminal device capability information includes capability indication information, where the capability indication information is used to indicate that the terminal device has a capability of dividing an antenna into a first antenna group and a second antenna group, where the first antenna group is used to access a circuit domain, and the second antenna group is used for a data service.

It should be noted that "group" in the first antenna group and the second antenna group is not necessarily a complex number, and the antennas in one antenna group may be one or more. The first antenna group and the second antenna group are used for distinguishing different antenna groups, one antenna group is used for accessing a circuit domain, the other antenna group is used for carrying out data service, namely the first antenna group is used for accessing the circuit domain, and the second antenna group is used for carrying out data service; or the first antenna group is used for carrying out data service, and the second antenna group is used for accessing a circuit domain. In the embodiment of the application, the first antenna group is accessed to the circuit domain, and the second antenna group performs data service.

The terminal device capability information may include one or more of the following in addition to the capability indication information: evolved Universal Terrestrial Radio Access (EUTRA) capability, Universal Terrestrial Radio Access (UTRA) capability, universal Radio access network circuit switch (GRAN-CS) capability, universal Radio access network packet switch (GRAN-PS) capability, Code Division Multiple Access (CDMA) 2000-1x Radio Transmission Technology (RTT) capability.

The terminal device may report the terminal device capability information to the first access network device upon receiving the capability query request message from the first access network device. The terminal device may also report the terminal device capability information to the first access network device in an attach (attach) procedure, where the terminal device capability information may be carried in a non-access stratum (NAS) message. The terminal device may also report the terminal device capability information to the first access network device before sending the request message to the first access network device or before receiving the first message from the first access network device. In the embodiment of the application, when the terminal device reports the terminal device capability information to the first access network device in any way is not limited.

When the first access network equipment receives the terminal equipment capacity information, the first access network equipment can analyze the terminal equipment capacity information to acquire the included information, and then reports the terminal equipment capacity information to the access management network element; or directly reporting the terminal equipment capability information to the access management network element without analyzing the terminal equipment capability information.

The terminal device resides in the 5G network, and when a calling CS service needs to be initiated, a request message is sent to the first access network device, and the request message is used for requesting the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the data service, which is performed by using the first antenna group to access the circuit domain, and to perform the data service by using the second antenna group.

The request message may be an antenna splitting request (antenna split request) message. The request message may be carried in an RRC uplink message, and the request message is indicated by a field in the RRC uplink message. The request message may also be carried in a Media Access Control (MAC) uplink message, and the request message is indicated by a field in the MAC uplink message. The request message may also be an independent message sent by the terminal device to the first access network device, that is, the independent message is not carried in any message. The manner in which the specific request message is sent is not limited in the embodiments of the present application.

Step S302, the first access network device sends a first message to the terminal device. Accordingly, the terminal device receives a first message from the first access network device.

The first access network device may determine that it needs to be notified that the terminal device adjusts the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain and the data service using the second antenna group when receiving the request message from the terminal device. For example, a terminal device supporting two transmitting antennas and four receiving antennas may determine that it needs to be notified that the terminal device will adjust data traffic using two transmitting antennas and four receiving antennas to access a circuit domain using one transmitting antenna and two receiving antennas and perform data traffic using the other transmitting antenna and the other two receiving antennas when the first access network device receives the request message.

Because the antenna of the terminal device for performing the data service changes, the first access network device needs to adjust the resource, the scheduling manner, and the like of the terminal device accordingly, for example, the first access network device needs to adjust the air interface resource configured by the terminal device, so as to support the terminal device to access the circuit domain by using the first antenna group and perform the data service by using the second antenna group.

The first access network device adjusts the resource of the terminal device for performing the data service by using the first antenna group and the second antenna group to the resource of the terminal device for accessing the circuit domain by using the first antenna group, and uses the second antenna group for performing the data service, so as to support the terminal device for accessing the circuit domain by using the first antenna group and for performing the data service by using the second antenna group. For example, a terminal device supporting two transmitting antennas and four receiving antennas, where the first access network device adjusts resources of a data service performed by the terminal device using the two transmitting antennas and the four receiving antennas to resources of a circuit domain accessed by the terminal device using one transmitting antenna and two receiving antennas, and performs a data service using the other transmitting antenna and the other two receiving antennas. The specific method for adjusting the first access network device is not limited in the embodiment of the present application.

After determining that the terminal device needs to be notified to perform adjustment, the first access network device sends a first message to the terminal device, where the first message is used to notify the terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used to access a circuit domain, and the second antenna group is used for data service. The first message is used for responding to the request message, and the first message may be a response message for the first message.

Wherein the first message may be an antenna splitting notification (antenna splitting notification) message. The first message may be carried in an RRC downlink message, and the first message is indicated by a field in the RRC downlink message. The first message may also be carried in the MAC downlink message, and the first message is indicated by a field in the MAC downlink message. The first message may also be an independent message sent by the first access network device to the terminal device, that is, the first message is not carried in any message. The specific manner in which the first message is sent is not limited in the embodiment of the present application.

When receiving the first message, the terminal device divides its antenna into a first antenna group and a second antenna group. For example, the terminal device supports two transmission antennas and four reception antennas, which are divided into two groups, each group including one transmission antenna and two reception antennas.

In a possible implementation manner, the first message includes time information, where the time information is used to instruct the terminal device to access the circuit domain using the first antenna group and to use the second antenna group for the start time of the data service. The time information can be consistent with the starting time of the first access network device for adjusting the resources of the terminal device, namely the terminal device and the first access network device are adjusted at the same time, so that synchronous adjustment between the terminal device and the first access network device can be realized, and the switching time delay is reduced. The time information may also be inconsistent with the start time of the first access network device for adjusting the resource of the terminal device, that is, there is a time difference between the start time of the first access network device for adjusting and the start time of the terminal device for adjusting.

Step S303, the terminal device accesses the circuit domain through the first antenna group.

The terminal device accesses the circuit domain through the first antenna group after dividing the antenna into the first antenna group and the second antenna group. The process of the terminal device initiating the access to the circuit domain through the first antenna group may include: the terminal equipment sends a circuit domain access request message to second access network equipment; the second access network equipment sends the circuit domain access request message to a mobile switching network element; when receiving the circuit domain access request message, the mobile switching network element interacts with other network elements in the second core network to complete the processes of encryption, authentication and the like of the terminal equipment, thereby completing the process of accessing the circuit domain by the terminal equipment. The mobile switching network element may determine to complete a procedure of accessing the circuit domain by the terminal device when receiving an indication message, where the indication message is used to indicate that the terminal device successfully accesses the circuit domain, and the indication message may be sent by a certain network element in the second core network. It should be noted that the above procedure for accessing the circuit domain is only one embodiment, and does not limit the embodiments of the present application. Other flows for accessing the circuit domain also belong to the application.

After completing the procedure of accessing the circuit domain by the terminal device, the mobile switching network element may send a circuit domain access response message to the second access network device, where the circuit domain access response message is used to respond to the circuit domain access request message and indicate that the terminal device successfully accesses the circuit domain; the second access network device can send the circuit domain access response message to the terminal device to inform the terminal device of successful access to the circuit domain, and the terminal device can perform voice service in the circuit domain. When the terminal device successfully accesses the circuit domain, the voice service can be performed in the circuit domain, for example, another terminal device is called.

In an example, if the Location Area (LA) of the terminal device changes in the above procedure of initiating the access to the circuit switched domain, that is, moves from one cell to another cell, the mobile switching network element performs a Location Area Update (LAU).

In the CSFB calling flow, the terminal device may send an SRM to the MME, and the MME notifies the eNB to transfer the terminal device to the 2G/3G network when receiving the SRM. In the above procedure of initiating access to the circuit domain, the terminal device directly sends a circuit domain access request message to the mobile switching network element through the second access network device, without the terminal device notifying the access management network element, which can shorten call setup delay and reduce network load and signaling overhead.

Step S304, the terminal device performs data service through the second antenna group.

After the terminal device divides the antenna into the first antenna group and the second antenna group, the data service is performed through the second antenna group, that is, the data service before the terminal device initiates the calling CS service is continued. Since the first antenna group is accessed to the 2G/3G network and can support the terminal device to perform voice service, the second antenna group can be accessed to the 5G network, and the first antenna group and the second antenna group are different from each other, so that the speed of the data service can not fall back to the 2G/3G network before and after the terminal device initiates the calling CS service, and the influence of the voice service on the data service can be reduced.

It can be understood that, before initiating the calling CS service, the terminal device performs a data service through the first antenna group and the second antenna group, where the data service is a data service in a 5G network and has a faster rate; after the terminal equipment initiates a calling CS service, a circuit domain is accessed through a first antenna group to perform a voice service, and a data service in a 5G network is connected through a second antenna group.

Step S305, the mobile switching network element sends a fourth message to the access management network element. Accordingly, the access management network element receives the fourth message from the mobile switching network element.

In a possible implementation manner, the mobile switching network element sends the fourth message to the access management network element in the case of receiving the circuit domain access request message from the second access network device.

In a possible implementation manner, after completing the procedure of accessing the circuit domain by the terminal device, the mobile switching network element sends a fourth message to the access management network element.

The fourth message comprises circuit domain access success indication information, and the circuit domain access success indication information is used for indicating that the terminal equipment successfully accesses the circuit domain. The fourth message may be a circuit domain access notification (CS access notification) message. The fourth message may be an independent message, or may be carried in a certain message sent by the mobile switching network element to the access management network element.

In a possible implementation manner, the fourth message further includes a device identifier of the terminal device and the second location area identification code. The device identifier may be an International Mobile Subscriber Identity (IMSI), a mobile phone Number, or the like. The second location area identification code is the location area identification code when the terminal equipment is accessed to the circuit domain.

And under the condition that the access management network element receives the fourth message, the combined location area is not updated until the voice service is released. Because the terminal device performs the data service through the second antenna group, that is, there is a connection between the terminal device and the first access network device in the 5G network, the first access network device may report the location area of the terminal device to the access management network element. In other words, the connection between the terminal device and the 5G network is not disconnected, and the access management network element can grasp the location area of the terminal device in real time.

Step S306, the mobile switching network element sends a fifth message to the access management network element. Accordingly, the access management network element receives the fifth message from the mobile switching network element.

And when the terminal equipment finishes the voice service, namely the terminal equipment hangs up the call, releasing the voice service. And when the voice service release process is executed, the mobile switching network element sends a fifth message to the access management network element, wherein the fifth message is used for indicating the terminal equipment to end the voice service. The fifth message includes the first location area identity of the termination of the voice service by the terminal device.

The fifth message may be a circuit domain access release (CS release notification) message. The fifth message may be an independent message, or may be carried in a certain message sent by the mobile switching network element to the access management network element.

It should be noted that "first" and "second" of the first location area identification code and the second location area identification code are used to distinguish the location area identification codes at different times. If the terminal device moves from one cell to another cell in the process of carrying out the voice service, the first location area identification code is different from the second location area identification code. And if the terminal equipment does not move in the process of carrying out the voice service, the identification code of the first location area is the same as the identification code of the second location area.

Step S307, the access management network element performs joint location area update.

And under the condition that the access management network element receives the fifth message, updating the combined location area according to the first location area identification code, namely updating the location area identification code of the terminal equipment reported by the first access network equipment into the first location area identification code by the access management network element.

Step S308, the terminal device sends a second message to the first access network device. Accordingly, the first access network device receives the second message from the terminal device.

When the terminal device hangs up the call, that is, when the voice service is ended, a second message is sent to the first access network device, the second message is used for informing the first access network device to access the terminal device to the circuit domain by using the first antenna group, and the second antenna group is used for adjusting the data service to the terminal device by using the first antenna group and the second antenna group for performing the data service.

It can be understood that, when the first access network device receives the second message, the first access network device adjusts the resource, scheduling manner, and the like of the terminal device to the state before the terminal device initiates the CS service.

It should be noted that, in this embodiment of the application, the order of executing step S306 and step S308 is not limited, and may be executed simultaneously, or step S306 is executed first and then step S308 is executed, or step S308 is executed first and then step S306 is executed.

In the embodiment shown in fig. 3, the terminal device resides in the 5G network, and when the connected-state calling party initiates the CS service, the first antenna group is accessed to the circuit domain, and the second antenna group performs the data service, so that the voice service and the data service can be simultaneously supported, the quality of the voice service is not affected, and the influence of the voice service on the data service can be reduced.

Referring to fig. 4, a flow chart of a communication method according to the second embodiment of the present application is shown, where the method includes, but is not limited to, the following steps:

step S401, the mobile switching network element sends a paging request message to the access management network element. Accordingly, the access management network element receives a paging request message from the mobile switching network element.

When receiving a call request message from another terminal device, the mobile switching network element sends a paging request message to the access management network element because the terminal device resides in the 5G network, and the access management network element pages the terminal device through the first access network device.

In one possible implementation, the terminal device reports the terminal device capability to the first access network device. The terminal device may report the terminal device capability to the first access network device before the called CS service is initiated, that is, report the terminal device capability to the first access network device in advance.

Step S402, the access management network element sends a third message to the first access network device. Accordingly, the access management network element receives the third message from the first access network device.

The third message is used for requesting the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the state that the terminal device uses the first antenna group to access the circuit domain, and to perform the data service by using the second antenna group. The third message may be a circuit domain service notification (CS service notification) message, and may be carried in a paging request message sent by the access management network element to the first access network device.

In a possible implementation manner, the third message includes capability indication information, where the capability indication information is used to indicate that the terminal device has a capability of dividing the antenna into a first antenna group and a second antenna group, where the first antenna group is used for accessing to a circuit domain, and the second antenna group is used for a data service. If the first access network device does not have the capability of analyzing the capability information of the terminal device, the access management network element may issue the capability indication information to the first access network device. If the first access network device has the capability of analyzing the capability information of the terminal device, the access management network element does not need to send the capability indication information to the first access network device.

Step S403, the first access network device sends a first message to the terminal device. Accordingly, the terminal device receives a first message from the first access network device.

The first access network device may determine that it needs to be notified that the terminal device adjusts the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain and the data service using the second antenna group when receiving the third message.

It can be understood that the third message has the same function as the request message in the embodiment shown in fig. 3, and may trigger the first access network device to determine that it needs to notify the terminal device to adjust the data service using the first antenna group and the second antenna group to the data service using the first antenna group to access the circuit domain, and to use the second antenna group to perform the data service. And the first access network equipment can be triggered to correspondingly adjust the resources, the scheduling mode and the like of the terminal equipment.

Step S404, the terminal device accesses the circuit domain through the first antenna group.

Step S405, the terminal device performs data service through the second antenna group.

Step S406, the mobile switching network element sends a fourth message to the access management network element. Accordingly, the access management network element receives the fourth message from the mobile switching network element.

Step S407, the mobile switching network element sends a fifth message to the access management network element. Accordingly, the access management network element receives the fifth message from the mobile switching network element.

Step S408, the access management network element performs joint location area update.

Step S409, the terminal device sends a second message to the first access network device. Accordingly, the first access network device receives the second message from the terminal device.

The implementation process of the above step S404 to step S409 can refer to the detailed description of the step S303 to step S308 in the embodiment shown in fig. 3, and is not described herein again.

In the embodiment shown in fig. 4, the terminal device resides in the 5G network, and when the CS service is called in a connected state, the first antenna group is accessed to the circuit domain, and the second antenna group is used to perform a data service, so that the voice service and the data service can be simultaneously supported, the quality of the voice service is not affected, and the influence of the voice service on the data service can be reduced.

Referring to fig. 5, a flow chart of a communication method provided in the third embodiment of the present application is shown, where the method may include, but is not limited to, the following steps:

step S501, the terminal device accesses to the circuit domain.

When needing to initiate CS calling service, the terminal device synchronizes with the CS cell and reads the pilot frequency adjacent cell information in the System Information Block (SIB) message, selects the second access network device with better signal from the information, and directly initiates the flow of accessing the circuit domain, without notifying the access management network element, thus shortening the call establishment delay and reducing the network load and signaling overhead.

In a possible implementation manner, the terminal device may access the circuit domain through the first antenna set, that is, access the circuit domain through a part of the antennas.

In a possible implementation manner, the terminal device may access the circuit domain through the first antenna group and the second antenna group, that is, access the circuit domain through all antennas.

Step S502, the mobile switching network element sends a fourth message to the access management network element. Accordingly, the access management network element receives the fourth message from the mobile switching network element.

Step S503, the mobile switching network element sends a fifth message to the access management network element. Accordingly, the access management network element receives the fifth message from the mobile switching network element.

The implementation process of step S502 and step S503 may refer to the detailed description of step S305 and step S306 in the embodiment shown in fig. 3, and is not described herein again.

Step S504, the access management network element performs joint location area update.

And if the terminal equipment moves from one cell to another cell in the process of carrying out the voice service, the access management network element updates the second location area identification code into the first location area identification code.

In the embodiment shown in fig. 5, the terminal device resides in the 5G network, and directly accesses the circuit domain during the idle-state calling CS service, so that the idle-state calling CS service can be implemented, the call setup delay can be shortened, and the network load and signaling overhead can be reduced.

In a possible implementation manner, the terminal device accesses the circuit domain through the first antenna group, and if the terminal device initiates a data service in a process of performing a voice service, the embodiment shown in fig. 5 further includes:

step S505, the access management network element sends indication information to the first access network device. Accordingly, the first access network device receives the indication information from the access management network element.

The indication information comprises capability indication information and circuit domain access success indication information. The capability indication information is used for indicating that the terminal equipment has the capability of dividing the antenna into a first antenna group and a second antenna group, wherein the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service. The circuit domain access success indication information is used for indicating that the terminal device successfully accesses the circuit domain, namely indicating that the terminal device successfully accesses the circuit domain through the first antenna group. The indication information may trigger the first access network device to adjust resources, scheduling modes, and the like of the terminal device accordingly.

Step S505 may be performed after step S502 and before step S503.

In a possible implementation manner, if the data service is not ended after the voice service is ended, the embodiment shown in fig. 5 further includes:

step S506, the terminal device sends a second message to the first access network device. Accordingly, the first access network device receives the second message from the terminal device.

The second message is used for informing the first access network device to access the terminal device to the circuit domain by using the first antenna group, and the second antenna group is used for adjusting the data service to the terminal device by using the first antenna group and the second antenna group.

Referring to fig. 6, a flowchart of a communication method according to a fourth embodiment of the present application is shown, where the method may include, but is not limited to, the following steps:

step S601, the mobile switching network element sends a first paging request message to the access management network element. Accordingly, the access management network element receives the first paging request message from the mobile switching network element.

For specific implementation of step S601, reference may be made to specific description of step S401 in the embodiment shown in fig. 4, which is not described herein again.

Step S602, the access management network element sends a second paging request message to the first access network device. Accordingly, the access management network element receives a second paging request message from the first access network device.

The second paging request message includes capability indication information, where the capability indication information is used to indicate that the terminal device has a capability of dividing the antenna into a first antenna group and a second antenna group, the first antenna group is used to access a circuit domain, and the second antenna group is used for a data service.

Step S603, the first access network device sends a third paging request message to the terminal device. Accordingly, the terminal device receives a third paging request message from the first access network device.

Wherein the third paging message may include a preamble Sequence Number (SN) used for a random access procedure.

Step S604, the terminal device sends a paging response message to the first access network device. Accordingly, the first access network device receives the page response message from the terminal device.

Wherein the paging response message may include a preamble sequence number. When the first access network device receives the lead code serial number from the terminal device, whether the lead code serial number fed back by the terminal device is the same as the lead code serial number sent by the first access network device is detected, and if the lead code serial number fed back by the terminal device is the same as the lead code serial number sent by the first access network device, the first access network device can determine that the random access of the terminal device is successful.

The steps S603 and S604 simplify the four steps of the random access process in LTE to two steps, which can save signaling overhead and time consumption of the random access process.

Step S605, the terminal device accesses the circuit domain.

The terminal equipment directly initiates a process of accessing the circuit domain to the second access network equipment without notifying an access management network element, so that the call establishment delay can be shortened, and the network load and signaling overhead can be reduced.

Step S606, the mobile switching network element sends a fourth message to the access management network element. Accordingly, the access management network element receives the fourth message from the mobile switching network element.

Step S607, the mobile switching network element sends a fifth message to the access management network element. Accordingly, the access management network element receives the fifth message from the mobile switching network element.

The implementation process of step S606 and step S607 can refer to the detailed description of step S305 and step S306 in the embodiment shown in fig. 3, and is not described herein again.

Step S608, the access management network element performs joint location area update.

In the embodiment shown in fig. 6, the terminal device resides in the 5G network, and when the idle-state called CS service is performed, the random access process is simplified and the circuit domain is directly accessed, so that the idle-state called CS service can be implemented, the call setup delay can be shortened, and the network load and signaling overhead can be reduced.

In a possible implementation manner, the terminal device accesses the circuit domain through the first antenna group, and if the terminal device initiates a data service in a process of performing a voice service, the embodiment shown in fig. 6 further includes:

step S609, the access management network element sends the indication information to the first access network device. Accordingly, the first access network device receives the indication information from the access management network element.

In a possible implementation manner, if the data service is not ended after the voice service is ended, the embodiment shown in fig. 6 further includes:

step S610, the terminal device sends a second message to the first access network device. Accordingly, the first access network device receives the second message from the terminal device.

The implementation processes of step S609 and step S610 may refer to the detailed descriptions of step S505 and step S506 in the embodiment shown in fig. 5, and are not described herein again.

The method of the embodiments of the present application is set forth above in detail and the apparatus of the embodiments of the present application is provided below.

Referring to fig. 7, it is a schematic diagram of a logical structure of a communication apparatus provided in an embodiment of the present application, and the communication apparatus 50 may be a terminal device, a first access network device, a mobile switching network element, or an access management network element in the embodiments shown in fig. 3 to fig. 7. The communication device 50 may comprise a transceiving unit 501 and a processing unit 502.

In a possible implementation manner, the communication device 50 is a terminal device in the embodiments shown in fig. 3 to fig. 7: the transceiving unit 501 is configured to receive a first message from a first access network device, where the first message is used to notify a terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used to access a circuit domain, and the second antenna group is used for a data service; the processing unit 502 is configured to access a circuit domain through the first antenna group and perform a data service through the second antenna group. The communication apparatus 50 may implement the functions of the terminal device in the foregoing method embodiment, and for the detailed process executed by each unit in the communication apparatus 50, reference may be made to the execution steps of the terminal device in the foregoing method embodiment, which are not described herein again.

In a possible implementation manner, the communication device 50 is a first access network device in the embodiments shown in fig. 3 to fig. 7: a processing unit 502, configured to determine that it is required to notify the terminal device to adjust a data service performed by using the first antenna group and the second antenna group to a data service performed by using the first antenna group to access a circuit domain, and perform the data service by using the second antenna group; the transceiving unit 501 is configured to send a first message to the terminal device, where the first message is used to notify the terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used to access a circuit domain, and the second antenna group is used for a data service. The communication apparatus 50 may implement the function of the first access network device in the foregoing method embodiment, and for the detailed process executed by each unit in the communication apparatus 50, reference may be made to the execution step of the first access network device in the foregoing method embodiment, which is not described herein again.

In a possible implementation manner, the communication device 50 is a mobile switching network element in the embodiments shown in fig. 3 to fig. 7: a transceiver unit 501, configured to send a fourth message to an access management network element, where the fourth message includes circuit domain access success indication information, and the circuit domain access success indication information is used to indicate that a terminal device successfully accesses a circuit domain; the transceiving unit 501 is further configured to send a fifth message to the access management network element, where the fifth message is used to instruct the terminal device to end the voice service, and the fifth message includes a first location area identifier of the terminal device that ends the voice service. The communication apparatus 50 may implement the function of the mobile switching network element in the foregoing method embodiment, and for the detailed process executed by each unit in the communication apparatus 50, reference may be made to the execution step of the mobile switching network element in the foregoing method embodiment, which is not described herein again.

In a possible implementation manner, the communication device 50 is an access management network element in the embodiments shown in fig. 3 to fig. 7: a transceiver unit 501, configured to receive a fourth message from a mobile switching network element, where the fourth message includes circuit domain access success indication information, and the circuit domain access success indication information is used to indicate that a terminal device successfully accesses a circuit domain; the transceiving unit 501 is further configured to receive a fifth message from the mobile switching network element, where the fifth message is used to instruct the terminal device to end the voice service, and the fifth message includes a first location area identifier of the terminal device that ends the voice service; the processing unit 502 is configured to perform a joint location area update according to the first location area identifier. The communication apparatus 50 may implement the function of the access management network element in the foregoing method embodiment, and for the detailed process executed by each unit in the communication apparatus 50, reference may be made to the execution step of the access management network element in the foregoing method embodiment, which is not described herein again.

Referring to fig. 7, which is a simplified schematic diagram of an entity structure of a communication apparatus provided in the embodiment of the present application, the communication apparatus 60 may be a terminal device, a first access network device, a mobile switching network element, or an access management network element in the embodiments shown in fig. 3 to fig. 7. The central management apparatus 60 includes a transceiver 601, a processor 602, and a memory 603. The transceiver 601, processor 602 and memory 603 may be interconnected via a bus 604, or may be connected in other ways. The related functions implemented by the transceiving unit 501 shown in fig. 7 may be implemented by the transceiver 601. The related functions performed by the processing unit 502 shown in fig. 7 may be implemented by the processor 602.

The transceiver 601 is used for transmitting data and/or signaling and for receiving data and/or signaling.

In a possible implementation manner, the communication device 60 is a terminal device in the embodiment shown in fig. 3-7, and the transceiver 601 is configured to execute step S301, step S302, and step S308 in the embodiment shown in fig. 3; step S403 and step S409 in the embodiment shown in fig. 4 are performed; step S506 in the embodiment shown in fig. 5 is performed; step S603, step S604, and step S610 in the embodiment shown in fig. 6 are performed.

In a possible implementation manner, the communication device 60 is a first access network device in the embodiment shown in fig. 3-7, and the transceiver 601 is configured to perform step S302 and step S308 in the embodiment shown in fig. 3; step S402, step S403, and step S409 in the embodiment shown in fig. 4 are performed; step S505 and step S506 in the embodiment shown in fig. 5 are performed; step S602, step S603, step S604, step S609, and step S610 in the embodiment shown in fig. 6 are performed.

In a possible implementation manner, the communication device 60 is a mobile switching network element in the embodiment shown in fig. 3-7, and the transceiver 601 is configured to execute step S305 and step S306 in the embodiment shown in fig. 3; step S401, step S406 and step S407 in the embodiment shown in fig. 4 are performed; step S502 and step S503 in the embodiment shown in fig. 5 are performed; step S601, step S606 and step S607 in the embodiment shown in fig. 6 are executed.

In a possible implementation manner, the communication device 60 is an access management network element in the embodiment shown in fig. 3-7, and the transceiver 601 is configured to execute step S305 and step S306 in the embodiment shown in fig. 3; step S401, step S402, step S406, and step S407 in the embodiment shown in fig. 4 are performed; step S502, step S503, and step S505 in the embodiment shown in fig. 5 are performed; step S601, step S602, step S606, step S607, and step S609 in the embodiment shown in fig. 6 are executed.

The processor 602 may include one or more processors, such as one or more Central Processing Units (CPUs), and in the case that the processor 602 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

In a possible implementation manner, the communication device 60 is a terminal device in the embodiment shown in fig. 3-7, and the processor 602 is configured to execute step S303 and step S304 in the embodiment shown in fig. 3; step S404 and step S405 in the embodiment shown in fig. 4 are performed; step S501 in the embodiment shown in fig. 5 is performed; step S605 in the embodiment shown in fig. 6 is executed.

In a possible implementation manner, the communication device 60 is a first access network device in the embodiments shown in fig. 3 to fig. 7, and the processor 602 is configured to determine that it is required to notify the terminal device to adjust the data service using the first antenna group and the second antenna group to access the circuit domain using the first antenna group, to perform the data service using the second antenna group, and to adjust the configuration, resources, and the like of the terminal device.

In a possible implementation manner, the communication device 60 is a mobile switching network element in the embodiments shown in fig. 3-7, and the processor 602 is configured to control the transceiver 601 to send a message to the access management network element.

In a possible implementation manner, the communication device 60 is an access management network element in the embodiment shown in fig. 3 to 7, and the processor 602 is configured to execute step S307 in the embodiment shown in fig. 3; step S408 in the embodiment shown in fig. 4 is performed; step S504 in the embodiment shown in fig. 5 is performed; step S608 in the embodiment shown in fig. 6 is performed.

The memory 603 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 603 is used for related instructions and data. The memory 603 is used for storing program codes and data of the communication device 60.

It will be appreciated that fig. 7 only shows a simplified design of the communication device. In practical applications, the communication devices may also respectively include other necessary elements, including but not limited to any number of transceivers, processors, controllers, memories, communication units, etc., and all devices that can implement the present application are within the protection scope of the present application. For example, the communication device is a terminal device, and in practical applications, the terminal device may further include a display, a camera, and the like.

An embodiment of the present application further provides a communication system, which includes the terminal device, the first access network device, the access management network element, and the mobile switching network element shown in fig. 3 to fig. 6, and may further include a second access network device, and the like.

One of ordinary skill in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the above method embodiments. And the aforementioned storage medium includes: various media capable of storing program codes, such as ROM or RAM, magnetic or optical disks, etc. Accordingly, a further embodiment of the present application provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the above aspects.

Yet another embodiment of the present application provides a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Those of ordinary skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

1. A method of communication, comprising:

a terminal device receives a first message from a first access network device, wherein the first message is used for informing the terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service; the first message comprises time information, and the time information is used for indicating the terminal equipment to use the first antenna group to access the circuit domain and use the second antenna group to perform the initial time of the data service; the time information is consistent with the starting time of the first access network equipment for adjusting the resources of the terminal equipment;

and the terminal equipment accesses the circuit domain through the first antenna group according to the time information and performs the data service through the second antenna group.

2. The method of claim 1, further comprising:

and the terminal equipment sends terminal equipment capability information to the first access network equipment, wherein the terminal equipment capability information comprises capability indication information, and the capability indication information is used for indicating that the terminal equipment has the capability of dividing the antenna into the first antenna group and the second antenna group.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

the terminal device sends a request message to the first access network device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to be that the terminal device uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service.

4. The method of claim 3, further comprising:

and the terminal equipment sends a second message to the first access network equipment, wherein the second message is used for informing the first access network equipment that the terminal equipment uses the first antenna group to access the circuit domain, and the second antenna group is used for adjusting the data service to the terminal equipment that the terminal equipment uses the first antenna group and the second antenna group to carry out the data service.

5. A method of communication, comprising:

the method comprises the steps that a first access network device determines that a terminal device needs to be informed to adjust data service using a first antenna group and a second antenna group to a mode of using the first antenna group to access a circuit domain, and uses a second antenna group to perform the data service;

the first access network device sends a first message to the terminal device, where the first message is used to notify the terminal device to divide an antenna into the first antenna group and the second antenna group, the first antenna group is used to access the circuit domain, and the second antenna group is used for the data service; the first message comprises time information, and the time information is used for indicating the terminal equipment to use the first antenna group to access the circuit domain and use the second antenna group to perform the initial time of the data service; the time information is consistent with the starting time of the first access network device for adjusting the resources of the terminal device.

6. The method of claim 5, further comprising:

the first access network device receives terminal device capability information from the terminal device, wherein the terminal device capability information includes capability indication information, and the capability indication information is used for indicating that the terminal device has the capability of dividing the antenna into the first antenna group and the second antenna group.

7. The method of claim 5 or 6, further comprising:

the first access network device receives a second message from the terminal device, where the second message is used to notify the first access network device to access the terminal device to the circuit domain by using the first antenna group, and the second antenna group is used to adjust the data service so that the terminal device uses the first antenna group and the second antenna group to perform the data service.

8. The method of claim 5 or 6, further comprising:

the first access network device receives a request message from the terminal device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to be that the terminal device uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service.

9. The method of claim 6, further comprising:

the first access network device receives a third message from an access management network element, where the third message is used to notify the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the state that the terminal device uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service; the third message includes the capability indication information.

10. A terminal device, characterized in that the terminal device comprises a transceiving unit and a processing unit,

the transceiver unit is configured to receive a first message from a first access network device, where the first message is used to notify the terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for a data service; the first message comprises time information, and the time information is used for indicating the terminal equipment to use the first antenna group to access the circuit domain and use the second antenna group to perform the initial time of the data service; the time information is consistent with the starting time of the first access network equipment for adjusting the resources of the terminal equipment;

and the processing unit is used for accessing the circuit domain through the first antenna group according to the time information and performing the data service through the second antenna group.

11. The terminal device of claim 10,

the transceiver unit is further configured to send terminal device capability information to the first access network device, where the terminal device capability information includes capability indication information, and the capability indication information is used to indicate that the terminal device has a capability of dividing the antenna into the first antenna group and the second antenna group.

12. The terminal device according to claim 10 or 11,

the transceiver unit is further configured to send a request message to the first access network device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to a state where the terminal device uses the first antenna group to access the circuit domain, and to use the second antenna group to perform the data service.

13. The terminal device of claim 12,

the transceiver unit is further configured to send a second message to the first access network device, where the second message is used to notify the first access network device to access the terminal device to the circuit domain using the first antenna group, and the second antenna group is used to adjust the data service to the terminal device using the first antenna group and the second antenna group to perform the data service.

14. A terminal device, comprising a processor, a transceiver and a memory, wherein the transceiver is configured to receive and transmit information, the memory stores computer executable instructions, the processor is connected to the memory and the transceiver via a bus, and the processor executes the computer executable instructions stored in the memory to cause the terminal device to perform: receiving a first message from a first access network device, wherein the first message is used for informing the terminal device to divide an antenna into a first antenna group and a second antenna group, the first antenna group is used for accessing a circuit domain, and the second antenna group is used for data service; the first message comprises time information, and the time information is used for indicating the terminal equipment to use the first antenna group to access the circuit domain and use the second antenna group to perform the initial time of the data service; the time information is consistent with the starting time of the first access network equipment for adjusting the resources of the terminal equipment; and accessing the circuit domain through the first antenna group according to the time information, and performing the data service through the second antenna group.

15. The terminal device of claim 14, wherein the transceiver is configured to send terminal device capability information to the first access network device, and wherein the terminal device capability information includes capability indication information indicating that the terminal device has a capability to divide the antenna into the first antenna group and the second antenna group.

16. The terminal device according to claim 14 or 15, wherein the transceiver is configured to send a request message to the first access network device, the request message being configured to request the first access network device to adjust the data service performed by the terminal device using the first antenna group and the second antenna group to the condition that the terminal device uses the first antenna group to access the circuit domain and uses the second antenna group to perform the data service.

17. The terminal device of claim 16, wherein the transceiver is configured to send a second message to the first access network device, and wherein the second message is configured to notify the first access network device to access the terminal device to the circuit domain using the first antenna group, and wherein the data service using the second antenna group is adjusted to the data service using the first antenna group and the second antenna group by the terminal device.

18. A first access network device, characterized in that the first access network device comprises a processing unit and a transceiving unit,

the processing unit is configured to determine that it is required to notify the terminal device that a data service performed by using the first antenna group and the second antenna group is adjusted to use the first antenna group to access the circuit domain, and use the second antenna group to perform the data service;

the transceiver unit is configured to send a first message to the terminal device, where the first message is used to notify the terminal device to divide an antenna into the first antenna group and the second antenna group, the first antenna group is used to access the circuit domain, and the second antenna group is used for the data service; the first message comprises time information, and the time information is used for indicating the terminal equipment to use the first antenna group to access the circuit domain and use the second antenna group to perform the initial time of the data service; the time information is consistent with the starting time of the first access network device for adjusting the resources of the terminal device.

19. The first access network device of claim 18,

the transceiver unit is further configured to receive a second message from the terminal device, where the second message is used to notify the first access network device to access the terminal device to the circuit domain using the first antenna group, and the second antenna group is used to perform the data service adjustment so that the terminal device performs the data service using the first antenna group and the second antenna group.

20. First access network device according to claim 18 or 19,

the transceiver unit is further configured to receive a request message from the terminal device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to be that the terminal device uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service.

21. First access network device according to claim 18 or 19,

the transceiver unit is further configured to receive a third message from an access management network element, where the third message is used to notify the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to the state that the terminal device uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service; the third message includes capability indication information indicating that the terminal device has a capability of dividing the antenna into the first antenna group and the second antenna group.

22. A first access network device, the first access network device comprising a processor, a transceiver, and a memory, wherein the transceiver is configured to receive and transmit information, wherein the memory stores computer-executable instructions, wherein the processor is coupled to the memory and the transceiver via a bus, and wherein the processor executes the computer-executable instructions stored in the memory to cause the first access network device to perform: determining that a terminal device needs to be informed to adjust a data service using a first antenna group and a second antenna group to a mode of using the first antenna group to access a circuit domain, and using the second antenna group to perform the data service; sending a first message to the terminal device, where the first message is used to notify the terminal device to divide an antenna into the first antenna group and the second antenna group, the first antenna group is used to access the circuit domain, and the second antenna group is used for the data service; the first message comprises time information, and the time information is used for indicating the terminal equipment to use the first antenna group to access the circuit domain and use the second antenna group to perform the initial time of the data service; the time information is consistent with the starting time of the first access network device for adjusting the resources of the terminal device.

23. The first access network device of claim 22,

the transceiver is configured to receive a second message from the terminal device, where the second message is used to notify the first access network device to access the terminal device to the circuit domain using the first antenna group, and the second antenna group is used to adjust the data service so that the terminal device uses the first antenna group and the second antenna group to perform the data service.

24. First access network device according to claim 22 or 23,

the transceiver is configured to receive a request message from the terminal device, where the request message is used to request the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to be that the terminal device uses the first antenna group to access the circuit domain, and uses the second antenna group to perform the data service.

25. First access network device according to claim 22 or 23,

the transceiver is configured to receive a third message from an access management network element, where the third message is used to notify the first access network device to adjust the data service, which is performed by the terminal device using the first antenna group and the second antenna group, to be that the terminal device uses the first antenna group to access the circuit domain, and use the second antenna group to perform the data service; the third message includes capability indication information indicating that the terminal device has a capability of dividing the antenna into the first antenna group and the second antenna group.