Patent ID: 8165590
Filing Date: 2012-04-24
Classification: H04W

Abstract:
1. A method for managing neighbor cell relation lists of a closed subscriber group (CSG) cell served by a CSG base station, where only a radio terminal belonging to the CSG is permitted to access and receive service from the CSG cell, and where information is provided to radio terminals in the cells neighboring the CSG cell that generally indicates that radio terminals are not to report to a respective serving base station signal quality measurements of a signal received from the CSG base station unless the radio terminal is a member of the closed subscriber group for the CSG cell, the method comprising the steps of: (a) powering-up the CSG cell; (b) determining whether the CSG cell has previously been powered-on in a same environment; (c) if the CSG cell is powered-on in the same environment, updating neighbor cell relation information for the CSG cell by comparing information with one or more other network nodes; and (d) if the CSG cell is not powered-on in the same environment, initializing neighbor cell relation information for the CSG cell.