Patent ID: 8638660
Filing Date: 2014-01-28
Classification: H04W

Abstract:
1. An apparatus comprising: a processor configured to store a direct tunnel context, the direct tunnel context comprising a field or flag indicating whether or not a direct tunnel is established between the apparatus and a radio network, the direct tunnel context further comprising at least one of a tunnel endpoint identifier and an address of a user plane of a serving node; wherein the processor is further configured to check, when receiving an error indication from the radio network, whether a direct tunnel is established between the apparatus and the radio network, and if it is determined that the direct tunnel is established between the apparatus and the radio network to inform the serving node that the error indication has been received from the radio network and to send, after receipt of the error indication, user traffic or packets to the serving node using at least one of the tunnel endpoint identifier and the address of the user plane of the serving node.