Patent ID: 9713040
Date: 2017-07-18
CPC Classifications: H04W

Claim:
1. A communication system comprising: a mobile terminal which is connected to a 3GPP network through a base station to use a predetermined service, the mobile terminal transmitting a handover request signaling for handover directly to a router being a new connection destination in a case where the mobile terminal connects to the 3GPP network through the router by handover; the router which transmits a non-3GPP handover signaling directly to a gateway of a home network of the mobile terminal on the basis of the handover request signaling, the non-3GPP handover signaling including identification information of the router and identification information of the mobile terminal; and a mobility management entity which, on the basis of a release request signaling transmitted from the gateway, binds a context of the mobile terminal to a context of the router and releases the 3GPP connection of the mobile terminal before the handover, the release request signaling including the identification information of the router and the identification information of the mobile terminal and requesting the release of the 3GPP connection of the mobile terminal before the handover.