Patent ID: 9125213
Filing Date: 2015-09-01
Classification: H04W

Abstract:
1. A method for verifying, by a mobility management entity (MME), a release of a local IP access (LIPA) packet data network (PDN) connection in a wireless communication system, the method comprising: receiving a handover preparation message from a source home eNodeB (HeNB); upon receiving the handover preparation message, starting a timer; upon receiving the handover preparation message, verifying whether the LIPA PDN connection has been released or not; if the LIPA PDN connection has been released already, performing a normal handover procedure; and if the LIPA PDN connection has not been released, transmitting a handover preparation failure message to the source HeNB, wherein the release of the LIP PDN connection is verified when a deactivate EPS bearer context accept message is received from the source HeNB before the timer expires.