公开(公告)号：US20170272297A1

公开(公告)日：2017-09-21

申请号：US15489255

申请日：2017-04-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： PIERRE BERTRAND ,  ANTHONY EDET EKPENYONG

IPC: H04L27/26 ,  H04L5/00

Abstract: A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting NFFT corresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an NSRS-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.

公开(公告)号：US20150236882A1

公开(公告)日：2015-08-20

申请号：US14679941

申请日：2015-04-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： PIERRE BERTRAND ,  ANTHONY EDET EKPENYONG

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04J13/0003 ,  H04J13/0062 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0228

Abstract: A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting NFFT corresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an NSRS-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.

Abstract translation: 一种包括接收射频信号的串并转换器的无线通信接收器，连接到所述串并转换器的快速傅立叶变换器件，其将NFT对应的串行信号转换成频域; 产生一组根序列信号的EZC根序列单元; 形成包括来自所述快速傅立叶变换装置的每个所述频域信号的乘积和相应的根序列信号的乘积集合的逐个元素乘法单元，执行组循环移位解除的NSRS长度IDFT单元， 将产品的多路复用和将连接的循环移位解复用信号转换回频域的离散傅里叶变换单元。