Patent ID: 8548469
Filing Date: 2013-10-01
Classification: H04W

Abstract:
1. Apparatus comprising: at least one processor; and at least one memory including computer program instructions; the at least one memory and computer program instructions being configured to, with the at least one processor and responsive to receipt of a reject message from a network control apparatus, cause the apparatus to at least to perform: transmitting a first attach request to the network control apparatus using a first communication layer and an existing connection between the wireless device and the network control apparatus; and responsive to a notification of a failure of the first attach request originating from a second communication layer which is lower than the first communication layer, transmitting a second attach request to the network control apparatus using the first communication layer and a new connection between the wireless device and the network control apparatus, wherein transmission of the second attach request is effected independently of a timer started on receipt of the notification of a failure.