Patent ID: 8692667

Claim:
A method of operating a mobile wireless device, comprising: measuring signal characteristics of received signals; determining a position of the mobile wireless device based on the measured signal characteristics; adjusting at least one of: (i) a prediction parameter which can be used in generating a prediction map, (ii) statistics of a prediction parameter, or (iii) a distribution of a prediction parameter, based on one or more of the measured signal characteristics and the determined position of the mobile wireless device; transmitting a prediction parameter update signal including at least one of: (i) the adjusted prediction parameter, (ii) adjusted statistics of a prediction parameter, or (iii) the adjusted distribution of a prediction parameter, to another mobile wireless device or a network device; receiving a second prediction parameter update signal from another mobile wireless device; generating a first prediction map using parameter information included in said second prediction parameter update signal; and using the generated first prediction map and said measured signal characteristics to determine the position of the mobile wireless device.