Patent ID: 9681257
Date: 2017-06-13
CPC Classifications: H04W

Claim:
1. A data downlink transmission method, comprising: receiving, by a first communication device, a first message sent by a server, wherein the first message comprises downlink data that needs to be sent to a user equipment; and receiving, by the first communication device, a first association request sent by the serving node of the user equipment; and sending, by the first communication device, a first association response to the serving node, so as to establish an association with the serving node; acquiring, by the first communication device, serving node information of the user equipment stored locally on the first communication device before the first message is received, and sending a second message to a serving node of the user equipment according to the serving node information of the user equipment, wherein the second message comprises the downlink data that needs to be sent to the user equipment, so that the serving node sends the downlink data to the user equipment.