therefore this particular doppler bias is termed cdma channel dependent doppler bias and this bias can be calculated by software that may be based on the uhf lo pll frequency and divider ratio for that cdma channel the software calculated cdma dependent doppler bias can then be used together with cdma channel independent doppler bias as discussed above to repenter gps doppler search windows and propagate both the gps and aflt code phase measurements as disclosed herein therefore according to the present disclosure the gps doppler measurement bias correction scheme consists of the steps of continuously measuring and or calculating the cdma channel independent and or dependant doppler bias then re centering gps doppler search windows correspondingly and properly accounting for this bias during gps and in the case of cdma channel dependent doppler bias also during aflt code phase measurement time propagation to common time also the total gps doppler bias gets subtracted from the measured gps doppler prior to its being reported in the is 801 1 prm message to the pde for ms assisted mode or prior to being used in position location and or the velocity engine in a wireless device for ms based or standalone mode the measured cdma channel independent gps doppler bias is stored in the wireless device 39 s non volatile nv memory as an nv item called nv_doppler_bias the calculated cdma channel dependent doppler bias is normalized by the cdma channel frequency and then stored in wireless device 39 s volatile memory as a variable called dmss_doppler_bias which will be used together with the nv item nv_doppler_bias to re center the gps doppler search windows for all gps search.