Patent ID: 9629059
Date: 2017-04-18
CPC Classifications: H04W

Claim:
1. An intercommunication method for mobile nodes, comprising: after an enhanced mobile access gateway receives a data packet transmitted by a mobile node to a peer node for the first time, if the enhanced mobile access gateway provides an enhanced Proxy Mobile IP (ePMIP) service to the mobile node, the enhanced mobile access gateway judging whether a peer mobile access gateway to which the peer mobile node is currently attached provides the ePMIP service to the peer mobile node, and if yes, forwarding the data packet in the ePMIP manner, and creating a local forwarding entry to instruct a subsequent packet to be forwarded in the ePMIP manner, and if not, forwarding the data packet in a Proxy Mobile IP (PMIP) manner, and creating a local forwarding entry to instruct a subsequent packet to be forwarded in the PMIP manner; wherein the enhanced mobile access gateway judging whether the peer mobile access gateway provides the ePMIP service to the peer mobile node comprises: transmitting, by the enhanced mobile access gateway, a location query request to an enhanced Local Mobility Anchor (eLMA), and making, by the enhanced mobile access gateway, a judgment according to an E flag carried in a location query response returned by the eLMA, wherein the E flag indicates whether a conventional Proxy Mobile IP (PMIP) service or the ePMIP service is provided to the peer mobile node, the E flag is set to 1 when the ePMIP service is provide to the peer mobile node, and the E flag is set to 0 when the conventional PMIP service is provided to the peer mobile node.