Patent ID: 7656830
Filing Date: 2010-02-02
Classification: H04L,H04Q,H04W

Abstract:
1. A core network element in form of serving packet radio support node for a communication system including at least one access network element in form of a radio network controller and a transport network providing Asynchronous Transfer Mode (ATM) permanent virtual channel (PVC) connections between the core network element and said at least one access network element, said core network element comprising: two or more ATM interface units; means for providing two or more active ATM PVC connections between said core network element and each of said at least one access network element, such that different ATM PVC connections from any one of said at least one access network element are arranged to be connected to different ones of said two or more ATM interface units, and means for spreading an ATM traffic over said different ATM PVC connections in order to improve tolerance of the communications system to failures in the ATM PVC connections or in the ATM interface units.