Patent ID: 9191871
Filing Date: 2015-11-17
Classification: H04W

Abstract:
1. A method of allocating user equipments (UEs) to core network nodes of a cellular telecommunications system, wherein UEs access the core network via a radio access network and wherein the nodes of the core network are grouped into a plurality of local pool areas and local pool areas are further grouped into one or more pool areas, each local pool area corresponding to a geographic area covered by the access network, the method comprising: attempting allocation of a UE to a core network node of a local pool area corresponding to the geographic area within which the UE is located; in the event that the allocation attempt fails, first attempting to re-allocate the UE to another core network node within the same local pool area; and if the first re-allocation attempt fails, attempting to re-allocate the UE to a core network node within the same pool area but different local pool area.