Patent ID: 7408894
Filing Date: 2008-08-05
Classification: H04W

Abstract:
1. An apparatus for performing power control on a reverse channel quality indicator channel (CQICH) received from a mobile station by a base station in a mobile communication system including the base station for transmitting a power control bit for power control on reverse channels and the mobile station for controlling transmission power of the reverse channels according to the power control bit, the apparatus comprising: an erasure detector for determining whether to perform an erasure process by measuring reception power of the reverse channel quality indicator channel; an erasure rate calculator for accumulating the erasure-determined result for N slots and calculating an erasure rate for the N slots; and a control bit generator for determining a ratio control bit to be transmitted to the mobile station according to the erasure rate, to issue a command to increase or decrease a CQICH traffic-to-pilot ratio according to the erasure rate.