Interference cancellation in a spread spectrum communication system
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United States of America Patent
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Feb 23, 2016
Grant Date -
Aug 27, 2015
app pub date -
May 12, 2015
filing date -
Sep 10, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus used to transmit and receive weighted data transmissions over a plurality of antennas using a plurality of different pilot signals. Different pilot signals are produced and a different pilot signal of the plurality of pilot signals is transmitted on each of a plurality of antennas. Each of the pilot signals is derived from a pseudo noise (PN) sequence and a bit sequence of the PN sequence for each of the pilot signals is different. A plurality of data streams are produced in which each of the data streams has data bits combined with bits of a PN sequence. The data streams are weighted in response to weight information received from a receiving device and the plurality of weighted data streams are transmitted using the plurality of antennas.
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