发明名称 |
RAM-based fast fourier transform unit for wireless communications |
摘要 |
A wireless communication technique enables fast Fourier transforms (FFTs) and inverse fast Fourier transforms (IFFTs) to be performed with reduced latency and reduced memory requirements. In particular, an FFT/IFFT unit receives input data representative of a communication symbol. The FFT/IFFT unit applies an FFT operation to the input data to generate intermediate data. The FFT/IFFT unit stores the intermediate data in a random access memory (RAM). The intermediate data stored in the RAM may override data used as input to the FFT operation. The FFT/IFFT unit selectively addresses the RAM to retrieve the intermediate data in a desired output order. For example, the FFT/IFFT unit may output the intermediate data in the same sequential order as the FFT/IFFT unit received the input data.
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申请公布号 |
US2003050945(A1) |
申请公布日期 |
2003.03.13 |
申请号 |
US20020234060 |
申请日期 |
2002.08.30 |
申请人 |
CHEN YING;BRICKNER BARRETT J. |
发明人 |
CHEN YING;BRICKNER BARRETT J. |
分类号 |
G06F17/14;(IPC1-7):G06F15/00 |
主分类号 |
G06F17/14 |
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