公开(公告)号：US10142154B2

公开(公告)日：2018-11-27

申请号：US15921462

申请日：2018-03-14

Applicant: Imagination Technologies Limited

Inventor： Mohammed Alloulah ,  Paul Murrin ,  Alamo Spaargaren

IPC: H04L27/26 ,  H04L25/03 ,  H04L25/02

Abstract: Methods and OFDM receivers for decoding an OFDM signal include estimating a channel impulse response from a pilot-dense symbol of the OFDM signal for each of a plurality of potential FFT window positions; determining a noise floor of each of the channel impulse responses; selecting the potential window position corresponding to the channel impulse response with the lowest noise floor as an optimum FFT window position; and decoding symbols of the OFDM signal using the optimum FFT window position.

公开(公告)号：US20180205588A1

公开(公告)日：2018-07-19

申请号：US15921462

申请日：2018-03-14

Applicant: Imagination Technologies Limited

Inventor： Mohammed Alloulah ,  Paul Murrin ,  Alamo Spaargaren

IPC: H04L27/26 ,  H04L25/03 ,  H04L25/02

CPC classification number: H04L27/2665 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03006 ,  H04L25/03159 ,  H04L27/265 ,  H04L27/2675 ,  H04L27/2695

Abstract: Methods and OFDM receivers for decoding an OFDM signal include estimating a channel impulse response from a pilot-dense symbol of the OFDM signal for each of a plurality of potential FFT window positions; determining a noise floor of each of the channel impulse responses; selecting the potential window position corresponding to the channel impulse response with the lowest noise floor as an optimum FFT window position; and decoding symbols of the OFDM signal using the optimum FFT window position.

公开(公告)号：US09954713B2

公开(公告)日：2018-04-24

申请号：US14826514

申请日：2015-08-14

Applicant: Imagination Technologies Limited

Inventor： Mohammed Alloulah ,  Paul Murrin ,  Alamo Spaargaren

IPC: H04L27/26 ,  H04L25/03 ,  H04L25/02

CPC classification number: H04L27/2665 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03006 ,  H04L25/03159 ,  H04L27/265 ,  H04L27/2675 ,  H04L27/2695

Abstract: Methods and OFDM receivers for decoding an OFDM signal include estimating a channel impulse response from a pilot-dense symbol of the OFDM signal for each of a plurality of potential FFT window positions; determining a noise floor of each of the channel impulse responses; selecting the potential window position corresponding to the channel impulse response with the lowest noise floor as an optimum FFT window position; and decoding symbols of the OFDM signal using the optimum FFT window position.

公开(公告)号：US20160359656A1

公开(公告)日：2016-12-08

申请号：US14826514

申请日：2015-08-14

Applicant: Imagination Technologies Limited

Inventor： Mohammed Alloulah ,  Paul Murrin ,  Alamo Spaargaren

IPC: H04L27/26 ,  H04L25/03

CPC classification number: H04L27/2665 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03006 ,  H04L25/03159 ,  H04L27/265 ,  H04L27/2675 ,  H04L27/2695

Abstract: Methods and OFDM receivers for decoding an OFDM signal include estimating a channel impulse response from a pilot-dense symbol of the OFDM signal for each of a plurality of potential FFT window positions; determining a noise floor of each of the channel impulse responses; selecting the potential window position corresponding to the channel impulse response with the lowest noise floor as an optimum FFT window position; and decoding symbols of the OFDM signal using the optimum FFT window position.

Abstract translation: 用于解码OFDM信号的方法和OFDM接收器包括：针对多个潜在FFT窗口位置中的每一个估计来自OFDM信号的导频密集符号的信道脉冲响应; 确定每个信道脉冲响应的本底噪声; 选择与具有最低噪声本底的信道脉冲响应对应的潜在窗口位置作为最佳FFT窗口位置; 以及使用最佳FFT窗口位置对OFDM信号的符号进行解码。