Abstract: A mobile device learns cell information for a serving cell and for neighbor cells. The learned cell information is communicated to a remote location server for locating base stations within the serving and/or neighbor cells. The learned cell information comprises cell signal strength information and/or other cell information such as cell identifiers (Cell-IDs) and Country Code (MCC). Received signal strength (RSS) on the serving cell and the neighbor cells are measured. Locations pertaining to the RSS measurements are determined. The mobile device location stamps the RSS measurements utilizing the determined locations to generate a neighbor cell report, which is utilized by a cellular communication network to prepare a handover operation whenever needed, and/or to build a local cell-learning database. A portion of the local cell-learning database is transmitted as cell data to the remote location server that collects cell data from a plurality of mobile devices.

Abstract: The present invention discloses a system and method for mitigating multipath in DSSS CDMA radio navigation signals by a) transmitting a rapid pulsing pattern from a transmitting device to a position receiver that samples the transmitted signal, b) separating the received samples and storing sample-based correlation accumulation values into independent bins that are synchronous with the received pulsing pattern, c) applying a logical decision process to determine the accumulation bin associated with the leading edges of the received pulses, and d) generating a range estimate from the correlation accumulation bin associated with the leading edges of the received pulses.