Patent ID: 8554246

Claim:
A method for combining multiple location measurements determined by a wireless location system, comprising: generating multiple single location measurements for a mobile device, wherein the single location measurements are generated using a location algorithm (LA) for estimating the location of the mobile device based on signals received from the mobile device and providing location measurements, wherein the location measurements are computed based on at least one of time difference of arrival (TDOA), time of arrival (TOA), and angle of arrival (AOA); using the LA, providing quality metrics (QM) for the location measurements; and executing a combined location algorithm (CLA) to compute an improved location estimate using the information obtained during the process of generating the multiple single location estimates, wherein the CLA includes a weighting adjustment (WA) procedure, a redundant baseline analysis (RBA) procedure, wherein the RBA procedure includes a reweighting and filtering operation, a procedure for selecting a search region using the location of cooperating sites and prior locations previously stored by the LA, and a joint bias analysis (JBA) procedure for computing a decision metric throughout the search region, and wherein weights are computed by the WA procedure using a quality metric and are reduced by the RBA procedure in accordance with a downweighting factor.