Patent ID: 8301183
Filing Date: 2012-10-30
Classification: H04W

Abstract:
1. A method for a femtocell base station to control power in connection with a macrocell base station in a wideband wireless access system in which macrocells and femtocells coexist comprising: transmitting first received signal strength on a signal provided by the macrocell base station and femtocell information including preamble information of the femtocell base station and a femtocell base station identifier to the macrocell base station; receiving power control information from the macrocell base station, the power control information being generated by comparing the first received signal strength and second received signal strength reported to the macrocell base station by a corresponding macrocell terminal, and the second received signal strength being measured by the macrocell terminal based on a signal provided by the macrocell base station; and controlling transmitted power based on the power control information, wherein when a difference value between the first received signal strength and the second received signal strength is less than a threshold value, the macrocell base station determines whether the macrocell terminal is located in the coverage of the femtocell base station based on third received signal strength of the femtocell base station measured by the macrocell terminal by using a signal provided by the femtocell base station, and includes a determination result in the power control information.