Transponder subsystem for supporting location awareness in...

Details Transponder subsystem for supporting location awareness in... Transponder subsystem for supporting location awareness in...

2007-10-30

2007-10-30

Ly, Nghi H. (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S404200, C455S414100, C340S572100, C342S357490

Reexamination Certificate

active

10524368

ABSTRACT:
The present invention is related to an apparatus and method for determining the location of a communication device within a wireless network in order to provide a geolocation functionality to the communication device participating under an access protocol of a wireless local-area network (WLAN) infrastructure such as IEEE 0.802.11 or Hiperlan. The apparatus comprises at least two transponder units for communicating with the communication device when the communication device is situated in a coverage area of the wireless network and a processing unit for deriving the location of the communication device within the coverage area in dependence on information received from the transponder units.

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