Network transferring method, terminal, and network-side device

A network transferring method, comprising:

• generating, by a network-side device, first information corresponding to extended steering of roaming (EXT-SOR), wherein the first information indicates that a service with target information is a target service;
• and wherein the target information comprises at least one of the following:
• target single network slice selection assistance information (S-NSSAI), target 5G quality of service identifier (5QI), request type of a target protocol data unit (PDU) session, target Internet protocol (IP) address, or target group filter;
• and
• sending, by the network-side device, the first information to a terminal, to cause the terminal to determine based on the first information, whether the target service is present in a currently ongoing service on the terminal, to release the currently ongoing service on the terminal in accordance with a determination that the target service is not present in the currently ongoing service on the terminal, and to perform network transferring from a current network to a selected network after releasing the currently ongoing service on the terminal.

A terminal, comprising a processor, a memory, and instructions stored in the memory and capable of running on the processor, wherein when the instructions are executed by the processor, steps of a network transferring method are implemented, the steps comprise:

• obtaining, by a terminal, a currently ongoing service on the terminal;
• receiving, by the terminal, first information corresponding to extended steering of roaming (EXT-SOR) which is sent by a network-side device;
• determining, by the terminal based on the first information, whether a target service is present in the currently ongoing service on the terminal, wherein the first information is used to indicate that a service with target information is the target service;
• releasing, by the terminal, the currently ongoing service on the terminal in accordance with a determination that the target service is not present in the currently ongoing service on the terminal;
• and
• performing, by the terminal, network transferring from a current network to a selected network after releasing the currently ongoing service on the terminal;
• wherein the target information comprises at least one of the following:
• target single network slice selection assistance information (S-NSSAI), target 5G quality of service identifier (5QI), request type of a target protocol data unit (PDU) session, target Internet protocol (IP) address, or target group filter.