Patent ID: 9125108
Filing Date: 2015-09-01
Classification: H04W

Abstract:
1. A method of deactivating a Packet Data Protocol (PDP) Context, the method comprising: receiving a first message from a user terminal at a femtocell base station, the first message including a first identifier of a PDP Context, the PDP Context associated with a data session in a macrocellular network of a wireless communication system; altering the first identifier of the PDP Context to a second identifier to form an altered message; forwarding the altered message with the second identifier to core network of the wireless communication system; receiving a further message originated by the user terminal at the core network, the further message including a further identifier associated with the data session; determining the second and further identifiers received by the core network do not match; and deactivating the PDP Context for the data session based on the determined mismatch, wherein the determined mismatch indicates a connection transfer of the user terminal occurred between the femtocell base station and a macrocell base station.