公开(公告)号：US20180337808A1

公开(公告)日：2018-11-22

申请号：US15597357

申请日：2017-05-17

Applicant: Futurewei Technologies, Inc.

Inventor： Weizhong Chen ,  Tao Zhang

IPC: H04L27/26 ,  H04B7/04 ,  H04L25/02

CPC classification number: H04L27/265 ,  H04B7/04 ,  H04L25/0232 ,  H04L27/2628

Abstract: A segment-based approach for fast fourier transforms of input signals is provided for the generation of baseband signals. A FFT is performed individually for each of the segments from the input signal and the FFT result from each segment is accumulated to provide a final FFT for an input signal symbol. After the samples are received for one segment, a FFT can be performed to generate an intermediate FFT result while samples for the additional segment(s) are received. The system accumulates the intermediate result from the segments into a final FFT result that can be used to generate the baseband signal. Segment-based processing of an input signal can provide faster and more efficient processing to generate a baseband signal. Segment-based processing can also decrease the required size of the input buffers for antennas.

公开(公告)号：US10341158B2

公开(公告)日：2019-07-02

申请号：US15597357

申请日：2017-05-17

Applicant: Futurewei Technologies, Inc.

Inventor： Weizhong Chen ,  Tao Zhang

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04B7/04 ,  H04L25/02

Abstract: A segment-based approach for fast fourier transforms of input signals is provided for the generation of baseband signals. A FFT is performed individually for each of the segments from the input signal and the FFT result from each segment is accumulated to provide a final FFT for an input signal symbol. After the samples are received for one segment, a FFT can be performed to generate an intermediate FFT result while samples for the additional segment(s) are received. The system accumulates the intermediate result from the segments into a final FFT result that can be used to generate the baseband signal. Segment-based processing of an input signal can provide faster and more efficient processing to generate a baseband signal. Segment-based processing can also decrease the required size of the input buffers for antennas.