Systems and methods for communication over a plurality of frequencies and streams
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United States of America Patent
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Dec 30, 2014
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N/A
app pub date -
Nov 30, 2012
filing date -
Dec 2, 2011
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Abstract
Methods and devices for communicating in a communication system are described herein. One aspect provides a method of communicating over one or more space-time streams. The method includes transmitting a first stream with a bandwidth of 2 MHz or less. The method further includes transmitting, when there are at least two streams, a second stream with a cyclic shift delay relative to the first stream equal to half a period. The method further includes transmitting, when there are at least three streams, a third stream with a cyclic shift delay relative to one of the first and second stream equal to a quarter of the period. The method further includes transmitting, when there are at least four streams, a fourth stream with a cyclic shift delay relative to the other of the first and second stream equal to a quarter of the period.
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