Patent ID: 9445313
Filing Date: 2016-09-13
CPC Classification: H04L,H04W

Claim Text:
1. In a mobility management entity (MME), a method for mitigating data loss when a mobile device is handed over between two heterogeneous networks by creating data forwarding resources between a source network and a target network, the method comprising: sending, to a serving gateway in the source network, a message that includes a data forwarding address of a serving node in the target network, the data forwarding address is obtained from the target network during a handover process of the mobile device from the source network to the target network, and requests the serving gateway to create data forwarding resources between the source and the target network according to the data forwarding address of the serving node; receiving a message including data forwarding tunnel information allocated by the serving gateway, the data forwarding tunnel information including an address of the serving gateway and a Tunnel Endpoint Identification (TEID) of the serving gateway; and sending, to an eNodeB in the source network, the data forwarding tunnel information for allowing the eNodeB to forward cached packets of the mobile device to the serving gateway during the handover process.