Methods and systems are provided for transmission power control in a
multiple access communication system, providing power ramping of a noise
floor power level in advance of a high data rate transmission, at a
comparatively higher power level, by a mobile station. The preferred
method includes receiving a request at a base transceiver station (BTS)
for a data transmission by a first mobile station of a plurality of mobile
stations (300), the data transmission to have a predetermined data
transmission power level; measuring a noise floor power level (305); and
comparing the measured noise floor power level to the predetermined data
transmission power level (310). When the measured noise floor power level
is less than the predetermined data transmission power level, the BTS
schedules the data transmission from the first mobile station to occur
following the power ramping of the noise floor, and directs the plurality
of mobile stations to incrementally increase their transmit power levels
to ramp the noise floor power level. Other methodologies to ramp the noise
floor power level include injecting analog or simulated noise into the
receive path of BTS, or directing the mobile station to transmit
meaningless data at increasing power levels prior to transmission of
requested data.
