Method for combining multiple measurements to determine the...

Details Method for combining multiple measurements to determine the... Method for combining multiple measurements to determine the...

H - Electricity

04

Q

H04Q 7/36 (2006.01) G01S 5/12 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2296812

Information obtained from one or multiple base stations is used to calculate a mobile terminal's location in a cellular system based on combining multiple estimated locations. The estimated locations are averaged using a weighted sum, where the weights reflect the quality of information or data that produced the estimated location. The estimated locations are based on information such as time difference of arrival (TDOA), time of arrival (TOA), and angle of arrival (AOA). The round-trip delay (RTD) provides TOA information, and the pilot strength measurement messages (PSMM) contain the TDOA information, AOA information and the ID of base stations that provide signals to the mobile terminal. (FIG. 7)

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