A communication system that comprises a base station and a substation connected to the base station. The base station maintains a set of identifiers, each identifier of the set being at least temporarily allocatable to a user equipment for identifying the user equipment when it resides in a cell of the...http://www.google.com/patents/US20090111476?utm_source=gb-gplus-sharePatent US20090111476 - ALLOCATION OF USER EQUIPMENT IDENTIFIER
