H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/00 (2006.01) H01Q 1/00 (2006.01) H04B 7/10 (2006.01)
Patent
CA 2147193
A high speed wireless data transfer system (10) for use in an indoor environment having a floor, a ceiling and at least one wall from which unwanted multipath signals are generated by reflection of the transmitted data signals. The system includes a data source (18) for generating a data signal, a transmitter stage (14) connected to the data source and having a transmitter antenna (16) with a predetermined beamwidth positioned within the indoor environment for transmitting the data signal at a selected carrier frequency, and a receiver stage (22) having a receiver antenna (26) with a predetermined beamwidth positioned within the indoor environment for receiving the data signal transmitted at the selected carrier frequency. The receiver antenna is a directional antenna having a beamwidth selected to be sufficiently narrow, and preferably in the range of approximately 5° to 15°, as to avoid the reception of substantially all multipath signals so that the received data signal is substantially error free.
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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