公开(公告)号：US20120183036A1

公开(公告)日：2012-07-19

申请号：US13429662

申请日：2012-03-26

申请人： Huan WU ,  Sean Simmons ,  Zoltan Kemenczy

发明人： Huan WU ,  Sean Simmons ,  Zoltan Kemenczy

IPC分类号： H04B1/10 ,  H03H7/30

CPC分类号： H04L25/0212 ,  H04L25/0226 ,  H04L25/025 ,  H04L2025/03624

摘要： A receiver and associated method estimates a channel impulse response of the communications signal. A communications signal is received as a burst of transmitted symbols, including a known training sequence. The joint estimation of timing offset and initial channel impulse response is determined based on the cross-correlations of the known transmitted symbols and received communications signal. A constant modulus interference removal iteration is applied to improve the initial channel impulse estimation.

摘要翻译： 接收机和相关联的方法估计通信信号的信道脉冲响应。 通信信号被接收为发射符号的脉冲串，包括已知的训练序列。 基于已知发送符号和接收到的通信信号的互相关来确定定时偏移和初始信道脉冲响应的联合估计。 应用恒模干涉去除迭代来改善初始信道脉冲估计。

公开(公告)号：US20110222636A1

公开(公告)日：2011-09-15

申请号：US13111990

申请日：2011-05-20

申请人： Huan WU ,  Sean SIMMONS ,  Zoltan KEMENCZY

发明人： Huan WU ,  Sean SIMMONS ,  Zoltan KEMENCZY

IPC分类号： H04L27/06

CPC分类号： H04L25/0212 ,  H04L25/0226 ,  H04L25/025 ,  H04L2025/03624

摘要： A receiver and associated method estimates a channel impulse response of the communications signal. A communications signal is received as a burst of transmitted symbols, including a known training sequence. The joint estimation of timing offset and initial channel impulse response is determined based on the cross-correlations of the known transmitted symbols and received communications signal. A constant modulus interference removal iteration is applied to improve the initial channel impulse estimation.

摘要翻译： 接收机和相关联的方法估计通信信号的信道脉冲响应。 通信信号被接收为发射符号的脉冲串，包括已知的训练序列。 基于已知发送符号和接收到的通信信号的互相关来确定定时偏移和初始信道脉冲响应的联合估计。 应用恒模干涉去除迭代来改善初始信道脉冲估计。

公开(公告)号：US20100111233A1

公开(公告)日：2010-05-06

申请号：US12686453

申请日：2010-01-13

申请人： Huan WU ,  Sean Simmons ,  Zoltan Kemenczy

发明人： Huan WU ,  Sean Simmons ,  Zoltan Kemenczy

IPC分类号： H04B1/10 ,  H04L27/06

CPC分类号： H04L25/0212 ,  H04L25/0226 ,  H04L25/025 ,  H04L2025/03624

摘要： A receiver and associated method estimates a channel impulse response of the communications signal. A communications signal is received as a burst of transmitted symbols, including a known training sequence. The joint estimation of timing offset and initial channel impulse response is determined based on the cross-correlations of the known transmitted symbols and received communications signal. A constant modulus interference removal iteration is applied to improve the initial channel impulse estimation.

摘要翻译： 接收机和相关联的方法估计通信信号的信道脉冲响应。 通信信号被接收为发射符号的脉冲串，包括已知的训练序列。 基于已知发送符号和接收到的通信信号的互相关来确定定时偏移和初始信道脉冲响应的联合估计。 应用恒模干涉去除迭代来改善初始信道脉冲估计。

公开(公告)号：US20140003557A1

公开(公告)日：2014-01-02

申请号：US13537455

申请日：2012-06-29

申请人： Huan WU ,  Yan XIN ,  Shouxing QU ,  Arnold SHEYNMAN

发明人： Huan WU ,  Yan XIN ,  Shouxing QU ,  Arnold SHEYNMAN

IPC分类号： H04L29/02

CPC分类号： H04L25/0258 ,  H04L25/0212 ,  H04L25/0226 ,  H04L25/0228

摘要： The present disclosure provides for a method and apparatus for efficient cross-correlation between a reference sequence and a received sequence in a wireless communication system. The reference sequence includes a concatenation of sign-adjusted sub-sequences, the sign adjustments determined by a first sign sequence of a set of sign sequences. For example, the reference sequence may be an alternating concatenation of sign-adjusted Golay complementary pair sub-sequences. The received sequence is shifted to provide a plurality of time shifted sequences that are then cross-correlated with the sub-sequences to form a set of partial cross-correlations. The partial cross-correlations are sign-adjusted using the first sign sequence and combined to produce the cross-correlation between the reference sequence and the received sequence. The cross-correlations so produced may be used for channel signature (e.g. PHY-type) identification and/or channel impulse response estimation.

摘要翻译： 本公开提供了一种用于无线通信系统中的参考序列和接收序列之间的有效互相关的方法和装置。 参考序列包括符号调整的子序列的级联，符号调整由一组符号序列的第一符号序列确定。 例如，参考序列可以是符号调整的Golay互补对子序列的交替连接。 接收到的序列被移位以提供多个时移序列，然后与子序列交叉相关以形成一组部分交叉相关。 部分互相关使用第一符号序列进行符号调整，并被组合以产生参考序列与接收到的序列之间的互相关。 如此产生的互相关可用于信道签名（例如，PHY类型）识别和/或信道脉冲响应估计。

公开(公告)号：US20140003474A1

公开(公告)日：2014-01-02

申请号：US13537398

申请日：2012-06-29

申请人： Yan XIN ,  Yongkang JIA ,  Huan WU ,  Shouxing QU ,  Arnold SHEYNMAN

发明人： Yan XIN ,  Yongkang JIA ,  Huan WU ,  Shouxing QU ,  Arnold SHEYNMAN

IPC分类号： H04L27/00 ,  H04L5/14

CPC分类号： H04J13/0011 ,  H04J13/0014 ,  H04J13/0055 ,  H04J13/102 ,  H04J13/107 ,  H04J13/14

摘要： The present disclosure provides for the construction and use of a set of Zero-Correlation-Zone (ZCZ) Concatenated Complementary Pair (CCP) sequences with zero-correlation-zone range greater than one or with zero-correlation-zone range equal to one and the sequence set size greater than two. Complementary pair sequences A and B are selected and, for each member of the set of ZCZ CCP sequences, sign sequences pA and pB are combined with the complementary pair sequences to form a member ZCZ CCP sequence of the set. A ZCZ CCP sequence modified by propagation over a communication channel may be identified by cross-correlation with ZCZ CCP sequences of the set. A set of sign sequences may be constructed by recursive expansion from an initial set or found by a computer search. The sequences may be used in a transceiver of a portable electronic device or other communication device.