| 摘要 |
A method is provided that includes receiving, at a serving gateway, an uplink data packet from a UE and caching information regarding the uplink packet on a per UE basis. The method also includes receiving a downlink packet destined for the UE when the serving gateway is unaware of any bearer connection being established for sending the packet to the UE. The method further includes determining whether the downlink packet is in response to an uplink data packet recently sent by the UE prior to receiving from an MME a notification at the serving gateway that a bearer connection is established for the UE to receive the downlink packet. The method also includes buffering the downlink packet until a bearer connection is established when the downlink packet is determined to be in response to an uplink packet. |
