| 摘要 |
Disclosed are a method for transmitting downlink data, a mobility management network element, an access network device, and a serving gateway. The method comprises: receiving a downlink data notification message sent by a serving gateway, the downlink data notification message comprising a classification attribute of the to-be-transmitted downlink data; acquiring the classification attribute, comprised in the downlink data notification message, of the to-be-transmitted downlink data; and determining whether a paging message is sent to an access network device according to the classification attribute of the to-be-transmitted downlink data, the paging message being used for instructing the access network device to establish a bearer used for transmitting the to-be-transmitted downlink data. By using the method for transmitting downlink data, the mobility management network element, the access network device and the serving gateway in the embodiments of the present invention, establishment of a bearer on an access network side is controlled during the transmission of the downlink data, and blind establishment of the bearer on the access network side is avoided, and accordingly, signaling overheads can be reduced and congestions of data transmission can be alleviated. |
