Patent ID: 9526054
Filing Date: 2016-12-20
CPC Classification: H04W

Claim Text:
1. A method for determining a subscriber identity of a wireless communication unit located in a first cell of a wireless communication system comprising a plurality of network elements and a core network, the method comprising, at a first network element: serving the first cell, obtaining an identity of a second network element, initiating a handover procedure by generating a handover required message that designates the second network element as a handover target cell and that includes information to identify the first cell, and sending the handover required message to the core network, and the method comprising, at the second network element: receiving, from the core network, a relocation request message requesting handover of the wireless communication unit from the first cell to the second network element that includes information to identify the first cell and the subscriber identity of the wireless communication unit, sending to the first network element a message including the received subscriber identity, and sending to the core network, a relocation failure message.