Patent ID: 8000687

Claim:
A method for use with a wireless device, the method comprising: receiving from a first base station a first plurality of signals corresponding to different carrier frequencies, wherein at least two of said first plurality of signals are transmitted at different power levels, and wherein one of said first plurality of signals is selected as a first signal based, at least in part, on an indication of received signal reliability; receiving at least a second signal from a second base station, said first and second signals corresponding to first and second carrier frequencies, respectively, said first and second carrier frequencies being different; determining at least two channel gain ratios based, at least in part, on information indicative of corresponding predetermined relative transmission powers of said first and second signals, said at least two channel gain ratios comprising a first channel gain ratio associated with said first base station and a second channel gain ratio associated with said second base station; and determining a geographic area location estimate based, at least in part, on geographic location information which corresponds to said at least two determined channel gain ratios.