The present invention is a system and method for automated position location
using RF signposting. The present invention comprises a plurality of transmitting
units placed throughout a service area. Each transmitting unit repeatedly transmits
a signal including position information related to a position associated with the
transmitting unit. The position information may be an absolute position or an encoded
position based on the structure of a building in which the transmitting unit is
located. A receiving unit receives the signal transmitted from a transmitting unit
and determines the position of the receiving unit, based on the received indication.
The transmitting units are placed to provide uniform coverage of the service area,
thus providing position location indoors and in urban areas where GPS does not
function properly.