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|1. (WO2018000312) GROUP COMMUNICATION METHOD, DEVICE, AND SYSTEM|
|Applicants:||HUAWEI TECHNOLOGIES CO., LTD.
|Title:||GROUP COMMUNICATION METHOD, DEVICE, AND SYSTEM|
A group communication method, device, and system, the method comprising: a control entity receives a second message bearing a second group ID sent by a first mobile device, the second group ID being from a first message sent by a second mobile device, and the second message being used for requesting to join a second group identified by the second group ID; the control entity sends a third message to the first mobile device, the third message bearing a group address corresponding to the second group; the address corresponding to the second group is used for sending messages in the second group after the first mobile device is added to the second group. The present solution solves the problem of a vehicle in a vehicle network not being able to acquire a group address for sending messages in the group just before being added to the group.