Patent ID: 9706514
Date: 2017-07-11
CPC Classifications: G01S,H04W

Claim:
1. A method comprising: receiving at a wireless device having a plurality of antennas, a wireless transmission from a target device whose location is to be determined; at the wireless device, generating channel state information data at a plurality of groups of subcarriers within a frequency bandwidth of the wireless transmission based on reception of the transmission at respective ones of the plurality of antennas of the wireless device; separating the channel state information data into subcarrier group specific data for each of the plurality of groups of subcarriers within the frequency bandwidth of the wireless transmission; computing subcarrier group specific location probability data for each of the plurality of groups of subcarriers from the subcarrier group specific data for respective ones of the plurality of groups of subcarriers; combining the subcarrier group specific location probability data for the plurality of groups of subcarriers to produce aggregate location probability data; and determining a location of the target device from the aggregate location probability data.