CN-116347548-B - Network transfer method, terminal and network side equipment

CN116347548BCN 116347548 BCN116347548 BCN 116347548BCN-116347548-B

Abstract

The application discloses a network transfer method, a terminal and network side equipment, and belongs to the technical field of communication. The method comprises the steps that a terminal obtains a service currently executed by the terminal, releases the service currently executed by the terminal under the condition that a target service does not exist in the service currently executed by the terminal, and executes network transfer to the terminal after releasing the service currently executed by the terminal. The application solves the problem that the terminal can continuously reside in the current network and can not realize the network transfer under the condition that the terminal has unimportant service in the prior art.

Inventors

HAN LUFENG
KANG YANCHAO
ZHANG PENGFEI

Assignees

维沃移动通信有限公司

Dates

Publication Date: 20260508
Application Date: 20200810

Claims (20)

1. A method for transferring a network, comprising: The terminal acquires the service currently executed by the terminal; the terminal releases the service currently executed by the terminal under the condition that the target service does not exist in the service currently executed by the terminal; After releasing the service currently executed by the terminal, the terminal executes network transfer to the terminal; the determining, by the terminal, whether the target service exists in the currently executed service includes: the terminal receives first information corresponding to extended roaming control EXT-SOR sent by network side equipment; The terminal determines whether a target service exists in the currently executed service according to the first information, wherein the first information is used for indicating the service with the target information as the target service; The target information comprises at least one of target single network slice selection auxiliary information S-NSSAI and target data network name DNN; after receiving the first information sent by the network side device, the method further comprises the following steps: the terminal carries out security detection on the first information, wherein the security detection comprises integrity check and/or decryption detection; the terminal determines whether a Visiting Public Land Mobile Network (VPLMN) in the network side equipment is changed or not under the condition that the first information security detection is passed; And the terminal sends feedback information to the network side equipment under the condition that the VPLMN in the network side equipment is not changed, wherein the feedback information is used for indicating the terminal to receive the first information.
2. The method of claim 1, wherein the receiving the first information corresponding to the extended roaming control EXT-SOR sent by the network side device includes: the terminal sends a notification message to the network side equipment, wherein the notification message is used for notifying the network side equipment that the terminal supports EXT-SOR capability; and the terminal receives first information corresponding to EXT-SOR sent by the network side equipment.
3. The method of claim 2, wherein the notification message comprises at least one of a registration request message, an uplink non-transport layer transport message, a protocol data unit session message.
4. The method of claim 1, wherein determining whether a target service exists in currently executing services based on the first information comprises one of: The terminal judges whether the target service exists in the currently executed service of the terminal according to the first information; The terminal judges whether the target service exists in the currently executed service according to the first information and/or subscription information stored by the terminal and/or target service agreed by the terminal and the network side equipment and/or target service customized by the terminal.
5. The method according to claim 1, wherein the terminal releases the service currently being performed by the terminal, comprising: the terminal immediately releases the service currently executed by the terminal according to the indication of the first information, or, And the terminal releases the service currently executed by the terminal after a preset time period according to the indication of the first information.
6. The method of claim 5, wherein the releasing, by the terminal, the service currently being performed by the terminal after a preset period of time according to the indication of the first information comprises: And the terminal starts a timer according to the indication of the first information, and releases the service currently executed by the terminal under the condition that the timer is overtime.
7. The method of claim 6, wherein the method further comprises: before the timer is overtime, the terminal receives second information corresponding to EXT-SOR sent by the network side equipment, wherein the second information is updated information of the first information; The terminal stops running the timer and uses the second information to cover the first information, and determines whether a target service exists in the currently executed service of the terminal according to the second information, or the terminal discards the second information and releases the currently executed service of the terminal according to the first information under the condition that the timer is overtime.
8. The method according to claim 1, wherein the method further comprises: the terminal determines whether the target service is ended or not under the condition that the target service exists in the currently executed service; and the terminal determines that the target service does not exist in the currently executed service under the condition that the target service is ended.
9. The method of claim 6, wherein the method further comprises: the terminal determines whether the VPLMN in the network equipment is changed; and under the condition that the VPLMN is changed, the terminal determines that the first information is invalid and stops the timer, or determines whether the target service exists in the currently executed service according to the first information.
10. The method of claim 1, wherein sending feedback information to the network-side device comprises: The terminal protects the feedback information, wherein the protection comprises integrity protection and/or encryption protection; and the terminal sends the feedback information after protection to the network side equipment through a registration ending message or an uplink non-access layer transmission message.
11. The method of claim 1, wherein after receiving the first information, the method further comprises: the terminal saves the first information to a user service identification module USIM or a mobile equipment ME.
12. The method of claim 11, wherein the method further comprises: and the terminal interacts the first information with the user through an AT interface.
13. The method of claim 1, wherein the terminal receives the first information sent by the network-side device through at least one of a transparent container of the SOR and a transparent container of the EXT-SOR.
14. The method of claim 13, wherein the transparent container of EXT-SOR comprises at least one of EXT-SOR information 1, EXT-SOR information 2, and EXT-SOR security information, wherein the EXT-SOR security information comprises a value of a counter required to generate the protected first information, and/or a checksum of the protected first information, and/or encrypted ciphertext information of the protected first information.
15. The method according to claim 2, characterized in that the terminal is indicated to the network side device to support EXT-SOR capabilities by means of 5G system mobility management 5GMM capabilities in the notification message.
16. The method according to claim 1, characterized in that the terminal is instructed to receive the first information in the feedback information by means of SOR header-new or EXT-SOR header-new.
17. The method of claim 1, wherein the target service is a service having a service priority higher than a preset priority.
18. A method for transferring a network, comprising: the network side equipment generates first information corresponding to EXT-SOR; The network side equipment sends the first information to a terminal so that the terminal releases the service currently executed by the terminal under the condition that the target service does not exist in the service currently executed by the terminal, and executes network transfer to the terminal after releasing the service currently executed by the terminal; after the network side device sends the first information to the terminal, the method further comprises: the network side equipment receives feedback information sent by the terminal under the condition that the VPLMN in the network side equipment is unchanged and the first information security detection is passed, wherein the feedback information is used for indicating the terminal to receive the first information; Wherein the security detection comprises an integrity check and/or a decryption detection.
19. The method of claim 18, wherein the network side device is further configured to: And receiving a notification message sent by the terminal, wherein the notification message is used for notifying the network side equipment that the terminal supports EXT-SOR capability.
20. The method of claim 18, wherein the network side device generating the first information comprises: The first information is generated by a home public land mobile network unified data management, HPLMN, UDM, network element in the network device.

Description

Network transfer method, terminal and network side equipment Technical Field The present application belongs to the field of communication technologies, and in particular, to a network transfer method, a terminal, and a network side device. Background In the prior art, if a UE (User Equipment) currently has some continuous unimportant services, for example, services with lower service priority, the UE may continuously reside in a current network, so that the network cannot transfer the service of the UE to a target network, which is desired by the network, and thus network operation and communication resource waste cannot be adjusted in time. Disclosure of Invention The embodiment of the application provides a network transfer method, a terminal and network side equipment, which can solve the problem that the terminal can continuously reside in the current network and cannot realize network transfer under the condition that unimportant service exists in the terminal in the prior art. In a first aspect, a network transfer method is provided, which includes that a terminal obtains a service currently executed by the terminal, the terminal releases the service currently executed by the terminal when a target service does not exist in the service currently executed by the terminal, and the terminal executes network transfer to the terminal after releasing the service currently executed by the terminal. In a second aspect, a network transfer device is provided, which includes an acquisition module configured to acquire a service currently executed by a terminal, a release module configured to release the service currently executed by the terminal when there is no target service in the service currently executed by the terminal, and an execution module configured to execute network transfer to the terminal after releasing the service currently executed by the terminal. In a third aspect, a network transfer method is provided, where the network side device generates first information corresponding to extended roaming control (Extended Steering of Roaming, EXT-SOR), and the network side device sends the first information to a terminal, where the first information indicates that a service with target information is the target service. In a fourth aspect, a network transfer device is provided, which includes a generating module configured to generate first information corresponding to an EXT-SOR, and a second sending module configured to send the first information to a terminal, where the first information indicates that a service with target information is the target service. In a fifth aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect. In a sixth aspect, a network side device is provided, the network side device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions implementing the steps of the method according to the third aspect when executed by the processor. In a seventh aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect. In an eighth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to run a network side device program or instruction, to implement the method according to the first aspect, or to implement the method according to the third aspect. In the embodiment of the application, the terminal can release the currently executed service of the terminal under the condition that the currently executed service does not exist in the currently executed service, so as to transfer the network, if the target service is a high priority service, the terminal can release the currently executed service and transfer the network under the condition that the high priority service does not exist in the currently executed service of the terminal, in addition, the target service can also be one or more designated services of the terminal, namely, if the designated one or more services do not exist in the currently executed service of the terminal, the currently executed service can also be released and the network is transferred, thereby solving the problem that the terminal can continuously reside in the current network and can not realize the network transfer under the condition that the currently non-important service exists in the terminal in the prior art. Drawings Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present appl