Method and apparatus for controlling gain level of a supplemental channel in a cdma communication system

Abstract

In a code division multiple access communication system (), a method and accompanying apparatus provide for controlling gain of a forward supplemental channel () by determining gain level of a forward fundamental channel () associated with supplemental channel () for being targeted for a common mobile station, determining an adaptive margin (Ma) for fundamental channel () and determining a forward supplemental channel gain (Gsch) based on the gain of supplemental channel () and the Ma. The Gsch may be successively decreased for subsequent data frames targeted for the common mobile station on supplemental channel () by successively decreasing the Ma until receiving a supplemental channel frame erasure indicator from the common mobile station. The Gsch may be increased for a subsequent data frame targeted for the common mobile station on supplemental channel () by increasing the Ma after receiving the supplemental channel frame erasure indicator from the common mobile station.