Patent ID: 7881739

Claim:
A method for adaptively controlling reverse link transmission power levels within a wireless communication system, comprising: determining a mobility profile of a remote station within the range of a base station, wherein the remote station transmits a plurality of signals to the base station at various transmission power levels by using an open loop power control scheme and a closed loop power control scheme, comprising: using an average transmission power level associated with a frame of the plurality of signals to determine a level crossing value and an excursion time; using the level crossing value and the excursion time to determine a velocity classification for the remote station, wherein the velocity classification is either a high speed, a low speed or a static speed, comprising: (a) comparing the level crossing value to a first threshold value; (b) if the level crossing value is greater than the first threshold value, then comparing the excursion time value to a second threshold value; (i) if the excursion time value is less than the second threshold value, then setting the velocity classification as static, else setting the velocity classification as high speed; (c) if the level crossing value is less than or equal to the first threshold value, then comparing the level crossing value to a third threshold value; (i) if the level crossing value is less than the third threshold value, then performing: comparing the excursion time value to the second threshold value; and if the excursion time value is greater than the second threshold value, then determining the number of times the excursion time value is greater than the second threshold value in a given period; if the number of times the excursion time value is greater than the second threshold value in the given period is more than an assigned number, then setting the velocity classification as low speed, else setting the velocity classification as high speed; and (ii) if the level crossing value is greater than or equal to the third threshold value, then setting the velocity classification as high speed; designating the mobility profile as unfavorable if the velocity classification is high speed or static speed; and turning off the closed loop power control scheme if the mobility profile is unfavorable.