| 摘要 |
Methods and apparatus are provided for increasing data throughput in a multiple antenna communication system using additional subcarriers. The multiple antenna communication system includes at least one legacy system employing an N<SUB>1 </SUB>point fast Fourier transform (FFT) within a bandwidth, BW<SUB>1</SUB>. Data is transmitted using an N<SUB>2 </SUB>point inverse FFT within the bandwidth, BW<SUB>1</SUB>, wherein N<SUB>2 </SUB>is greater than N<SUB>1</SUB>; and subcarriers associated with the N<SUB>2 </SUB>point inverse FFT are employed to transmit the data. Data can also be transmitted using an N<SUB>2 </SUB>point inverse FFT within a bandwidth, BW<SUB>2</SUB>, wherein N<SUB>2 </SUB>is greater than N<SUB>1 </SUB>and the bandwidth, BW<SUB>2</SUB>, is greater than the bandwidth, BW<SUB>1</SUB>; and subcarriers associated with the N<SUB>2 </SUB>point inverse FFT are employed to transmit the data, wherein the employed subcarriers includes one or more additional subcarriers at outer edges of the bandwidth, BW<SUB>1</SUB>, relative to the legacy system and one or more additional subcarriers near DC relative to the legacy system.
|
