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

摘要

In a code division multiple access communication system ( 100 ), a method and accompanying apparatus provide for controlling gain of a forward supplemental channel ( 482 ) by determining gain level of a forward fundamental channel ( 481 ) associated with supplemental channel ( 482 ) for being targeted for a common mobile station, determining an adaptive margin (Ma) for fundamental channel ( 481 ) and determining a forward supplemental channel gain (Gsch) based on the gain of supplemental channel ( 482 ) and the Ma. The Gsch may be successively decreased for subsequent data frames targeted for the common mobile station on supplemental channel ( 482 ) 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 ( 482 ) by increasing the Ma after receiving the supplemental channel frame erasure indicator from the common mobile station.