Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-11-24
1999-12-21
Trost, William G.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455422, 342463, 701207, H04Q 722
Patent
active
060060972
ABSTRACT:
A number of different solutions are described for gathering access delay and distance measurement information for use in determining the position of a cellular mobile station. For all of these solutions, one frequency and one uplink channel in each cell are dedicated for position determination. In one aspect of the present invention, a method is provided for determining the position of a mobile station using handover procedures for all of the cells or certain predefined cells in the network. One uplink channel is dedicated within each cell in the network to be used for position determination. These positioning channels continuously listen for handover access requests. Cells detecting the access bursts can measure the access delay and determine the distance to the requesting mobile station. A triangulation calculation is used to pinpoint the mobile station's position. In another aspect of the present invention, a method is provided for determining the position of a mobile station using position determination procedures for all of the cells or certain predefined cells in the network.
REFERENCES:
patent: 5317323 (1994-05-01), Kennedy et al.
patent: 5327144 (1994-07-01), Stilp et al.
patent: 5508708 (1996-04-01), Ghosh et al.
patent: 5613205 (1997-03-01), Dufour
patent: 5615409 (1997-03-01), Forssen et al.
patent: 5666662 (1997-09-01), Shibuya
patent: 5675344 (1997-10-01), Tong et al.
patent: 5901358 (1999-05-01), Petty et al.
patent: 5907809 (1999-05-01), Molnar et al.
Ulf Forssen et al., "Adoptive Antenna Arrays for GSM900/DCS1800," Proceedings of IEEE Vehicular Technology Conference, pp. 605-609 (Mar. 1994).
T.S. Rappaport et al., "Position Location Using Wireless Communications on Highways of the Future," IEEE Communications Magazine, pp. 33-41 (Oct. 1996).
"Time Difference of Arrival Technology for Locating Narrowband Cellular Signals" TDOA Overview, .COPYRGT.1997 The Associated Group, http://www.trueposition.com/tdoa.htm. pp. 1-9.
Hornfeldt Jan
Rinnback Lennart
Telefonaktiebolaget L M Ericsson (publ)
Trost William G.
LandOfFree
Method for determining position of mobile communication terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for determining position of mobile communication terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining position of mobile communication terminal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-514834