Patent ID: 7324824
Filing Date: 2008-01-29
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A method for transmitting and receiving tracking information for a plurality of mobile objects on a continuous basis in a facility utilizing an indoor wireless network, the method comprising: transmitting position location information signals on a continuous periodic basis for each of the plurality of mobile objects, the position location information signals for each of the plurality of mobile objects transmitted from a tag attached to each of the plurality of mobile objects, the tag of each of the plurality of mobile objects transmitting the position location information signals in a first communication format at a low power; attaching a plurality of stationary devices to a plurality of wall outlets within the facility to form an indoor wireless network, each of the plurality of stationary devices comprising: receiving position location information signals on a continuous periodic basis at the plurality of stationary devices in the first communication format over a first wireless link from the plurality of mobile objects; and transmitting the position location information over a second wireless link in a second communication format at a high power from the plurality of stationary devices to a remote position location engine, the high power of the second communication format higher than the low power of the first communication format.