Methods and apparatus are presented for improving the feedback of channel
information to a serving base station, which allows a reduction in the reverse
link load while allowing the base station to improve the forward link data throughput.
Over a channel quality indicator channel, three subchannels are generated; the
re-synch subchannel, the differential feedback subchannel, and the transition indicator
subchannel. The information carried on each subchannel can be used separately or
together by a base station to selectively update internal registers storing channel
conditions. The channel conditions are used to determine transmission formats,
power levels, and data rates of forward link transmissions.