METHOD FOR TRANSMITTING DOWNLINK DATA, MOBILITY MANAGEMENT NETWORK ELEMENT, ACCESS NETWORK DEVICE, AND SERVING GATEWAY

摘要

Disclosed is a method for transmitting downlink data, a mobility management network element, an access network device, and a serving gateway. The method includes: receiving a downlink data notification message sent by a serving gateway, where the downlink data notification message includes a category attribute of to-be-transmitted downlink data; acquiring the category attribute, of the to-be-transmitted downlink data, included in the downlink data notification message; and determining, according to the category attribute of the to-be-transmitted downlink data, whether to send a paging message to an access network device. For the method for transmitting downlink data, in a process of transmitting downlink data, establishment of a bearer on an access network side can be controlled, so as to prevent blind establishment of a bearer on the access network side. As such, signaling overheads can be reduced and congestion in data transmission can be mitigated.