Patent ID: 11889297
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A service continuity implementation method, comprising:
receiving, by a mobility management device, a tracking area update request message for a 4th generation (4G) network from a user equipment, wherein the tracking area update request message carries a user identifier and a 5th generation (5G) capability of the user equipment;
triggering the user equipment to attach to the 4G network after determining, by the mobility management device based on the user identifier, that a user corresponding to the user equipment is a 5G user;
receiving, by the mobility management device, an attach request from the user equipment;
selecting, by the mobility management device in response to the attach request, a 5G gateway for the user equipment; and
establishing a session with the 5G gateway.