Patent ID: 8254923

Claim:
A wireless apparatus for performing cell selection in a wireless communication system, the apparatus comprising: a radio frequency (RF) unit configured to transmit and receive radio signals; a memory configured to store basic priorities for a plurality of frequencies; and a processor connected to the RF unit and the memory and configured to: implement a radio interface protocol; measure a signal strength of at least one cell in at least one of the plurality of frequencies; perform cell selection based on an overrided priority, if a cell operating on a frequency with a highest measured signal strength for the frequency is a closed subscriber group (CSG) cell and the highest measured signal strength is greater than a CSG threshold; and perform cell selection based on the basic priorities, if the cell is the CSG cell and the highest measured signal strength is less than the CSG threshold or if the cell is not CSG cell, wherein the overrided priority overrides the basic priorities by allocating a highest priority to the particular frequency.