Nokia 3G radio access network sharing solution : Nokia will expand its 3G radio access multi-operator solution to enable the sharing of a radio access network between as many as four operators. By sharing the base station and radio network controller hardware, the operators can significantly minimize the capital and operational expenditures of their 3G RAN networks and yet maintain control of their network. Nokia's enhanced multi-operator RAN sharing solution for three to four operators will be available with Nokia Flexi WCDMA and UltraSite WCDMA base stations in the second half of 2007. The multi-operator RAN feature is implemented with a software upgrade to the radio network controller and is compatible with any core network.