METHODS AND ARRANGEMENTS FOR LOCATING A MOBILE TELECOMMUNICATIONS STATION

摘要

In a mobile telecommunications network, a mobile station (MS) (12) is configured to generate and uplink transmit position measuring data (54, 70) prior to and/or during a call connection, without noticeably interrupting th e user or degrading the quality of service provided. Position measuring data (54, 70) can be uplink transmitted over an idle traffic channel during a cal l set up operation for a brief moment while the call connection is being completed. Position measuring data (54, 70) can also be uplink transmitted during a call by selectively stealing data positions or burst positions in t he uplink signal. The position measuring data (54, 70) is received by a plurali ty of base stations (14) and uplink signal characteristics are measured and collected. The measured uplink signal characteristic data from several base stations (14) is then used to determine a current approximate geographical location of the mobile station (12).