Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2011-08-23
2011-08-23
Afshar, Kamran (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C455S456200, C455S562100, C455S101000, C370S328000, C370S320000
Reexamination Certificate
active
08005050
ABSTRACT:
The present invention provides a method and apparatus for localization of a mobile device in a distributed antenna communications system. In accordance with an embodiment of the invention, a distributed antenna system includes a plurality of distributed antennas that are communicatively coupled to a hub. A mobile communications device to be located is communicatively coupled to the hub via one or more of the antennas. The method for locating the mobile device comprises: receiving a message at the hub that identifies the mobile device to be located; discriminating among communications signals received from each of the distributed antennas using a channel and a spreading code to identify a signal from the mobile device; identifying messages from the mobile device to be located; and determining which of the antennas is closest to the mobile device to be located by monitoring received signal strength of the identified signal.
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Scheinert Stefan
Walther Peter
Afshar Kamran
Fogg & Powers LLC
LGC Wireless Inc.
Shaheed Khalid
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