Method of building a locating service for a wireless network...

Details Method of building a locating service for a wireless network... Method of building a locating service for a wireless network...

2007-04-10

2007-04-10

Trost, William (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456100, C701S207000

Reexamination Certificate

active

10995389

ABSTRACT:
A method of building a locating service for a wireless network environment includes: an environment input step, a detection point calculation step, a measuring step and an assumed non-detected position point step to find measured position points and to measure a four-directional signal strength of the measured position point. By assuming signal strengths of non-detected position points, an entire positioning system can be established. A measuring process includes a portable device signal measuring step, a position point calculation step, and a signal feed back step to send the corresponding position information to the portable device to provide information to a user.

REFERENCES:
patent: 2003/0216144 (2003-11-01), Roese et al.
patent: 2005/0096068 (2005-05-01), Bahl et al.
patent: 2005/0258957 (2005-11-01), Krumm et al.

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