DATA TRANSMISSION METHOD, AND RELATED DEVICE AND SYSTEM

摘要

Disclosed is a data transmission method, which is used for achieving that the continuity of an IP address and the QoS of a related service are guaranteed when a wearable device switches between different working modes. The method comprises: a core network entity receiving a first message sent by a first user equipment (UE); and the core network entity establishing a target bearer on the first UE according to the first message, so that a second UE transmits data via the target bearer.