公开(公告)号：US20120008616A1

公开(公告)日：2012-01-12

申请号：US13176440

申请日：2011-07-05

申请人： Scott McCulley ,  Steven Thompson

发明人： Scott McCulley ,  Steven Thompson

IPC分类号： H04W92/00 ,  H04B7/216

CPC分类号： H04B1/708 ,  H04B1/70752 ,  H04B1/70757 ,  H04B1/709 ,  H04B1/71075 ,  H04B2201/70701

摘要： Apparatus and method for communication are provided. The solution comprises obtaining as an input a signal; sampling the signal; feeding the sampled signal to a given number of parallel correlators having a given correlation length, controlling the correlation the sampled signal in each correlator with a unique time shift section of the pilot sequence of the communication system, determining the strongest correlation peaks, and determining on the basis of the correlation peaks and corresponding time shifts the strongest pilots in the signal.

摘要翻译： 提供了通信装置和方法。 解决方案包括获得信号作为输入; 采样信号; 将采样的信号馈送到具有给定相关长度的给定数量的并行相关器，将每个相关器中的采样信号与通信系统的导频序列的唯一时移部分控制相关，确定最强相关峰值，并确定 相关峰值的基础和相应的时间偏移信号中最强的导频。

公开(公告)号：US08059776B2

公开(公告)日：2011-11-15

申请号：US11795063

申请日：2005-01-14

申请人： Alton Shelborne Keel ,  Louis Robert Litwin

发明人： Alton Shelborne Keel ,  Louis Robert Litwin

IPC分类号： H04L7/00 ,  H04L7/04

CPC分类号： H04B1/70757 ,  H04B1/70735 ,  H04B1/7083 ,  H04B2201/70707

摘要： A Universal Mobile Telecommunications System (UMTS) receiver comprises an adjustable delay line, a secondary synchronization processor and a controller. The secondary synchronization processor performs frame synchronization on a received wireless signal that is provided via the adjustable delay line. The controller varies the sub-chip timing delays provided by the adjustable delay line until a measure of accuracy of the frame synchronization process exceeds a predetermined threshold, upon which frame synchronization occurs.

摘要翻译： 通用移动电信系统（UMTS）接收机包括可调延迟线，辅同步处理器和控制器。 次同步处理器对经由可调延迟线提供的接收的无线信号执行帧同步。 控制器改变由可调延迟线提供的子芯片定时延迟，直到帧同步过程的精确度的测量超过预定阈值，在该阈值发生帧同步时。

公开(公告)号：US08019026B2

公开(公告)日：2011-09-13

申请号：US11993342

申请日：2005-06-30

申请人： Alexander A Maltsev ,  Alexey Rubtsov ,  Andrey Pudeyev ,  Vadim Sergeyev ,  Sergey Tiraspolsky ,  Alexey Davydov

发明人： Alexander A Maltsev ,  Alexey Rubtsov ,  Andrey Pudeyev ,  Vadim Sergeyev ,  Sergey Tiraspolsky ,  Alexey Davydov

IPC分类号： H03D1/00

CPC分类号： H04B1/70757 ,  H04L2027/0026

摘要： An apparatus, system, method, and article for downlink (DL) preamble processing for initial acquisition are described. The apparatus may include an autocorrelator node to determine an autocorrelation response of samples and to detect a downlink preamble based on the autocorrelation response. The samples may include a periodic sequence having two or more periods. The apparatus may include a frequency domain matched filter processing node to perform downlink preamble recognition based on a maximum peak of a frequency domain matched filter response and on an index of the downlink preamble. Other embodiments are described and claimed.

摘要翻译： 描述用于初始采集的下行链路（DL）前导码处理的装置，系统，方法和文章。 该装置可以包括自相关器节点，用于确定采样的自相关响应并且基于自相关响应来检测下行链路前导码。 样本可以包括具有两个或更多个周期的周期序列。 该装置可以包括频域匹配滤波处理节点，用于基于频域匹配滤波器响应的最大峰值和下行链路前导码的索引来执行下行链路前导码识别。 描述和要求保护其他实施例。

公开(公告)号：US08009723B2

公开(公告)日：2011-08-30

申请号：US11803823

申请日：2007-05-16

申请人： Nathan Hays

发明人： Nathan Hays

IPC分类号： H04B1/69 ,  H04L7/06

CPC分类号： H04B1/7075 ,  H04B1/70757

摘要： Systems, apparatuses, and methods for providing timing estimates of received signals are disclosed. In one embodiment, sub-chip timing in spread spectrum signals can be achieved without requiring oversampling in the receiver. A transmitter can adjust the timing of certain transmitted symbols by a fraction of a chip time from an expected time, and send the mistimed symbols to a receiver. The output of the receiver's de-spreading correlator can show different magnitudes for wedge symbols with different timing errors. By setting some symbols early and some late, and by taking the difference between their magnitudes, a transfer function between the result and a timing error can be determined.

摘要翻译： 公开了用于提供接收信号的定时估计的系统，装置和方法。 在一个实施例中，可以实现扩频信号中的子芯片定时，而不需要接收机中的过采样。 发射机可以将某些发射符号的定时从预期时间调整一小时的码片时间，并将错误的符号发送到接收机。 接收机的去扩展相关器的输出可以显示具有不同定时误差的楔形符号的不同幅度。 通过将某些符号设置为早期和晚期，通过取大小差异，可以确定结果与定时误差之间的传递函数。

公开(公告)号：US07936807B2

公开(公告)日：2011-05-03

申请号：US12535010

申请日：2009-08-04

申请人： Jung-Lin Pan

发明人： Jung-Lin Pan

IPC分类号： H04B1/00 ,  H04L1/02

CPC分类号： H04B1/70757 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70707 ,  H04L25/03038 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03617

摘要： A method and apparatus for reducing the processing rate when performing chip-level equalization (CLE) in a code division multiple access (CDMA) receiver which includes an equalizer filter. Signals received by at least one antenna of the receiver are sampled at M times the chip rate. Each sample stream is split into M sample data streams at the chip rate. Multipath combining is preferably performed on each split sample data stream. The sample data streams are then combined into one combined sample data stream at the chip rate. The equalizer filter performs equalization on the combined sample stream at the chip rate. Filter coefficients are adjusted by adding a correction term to the filter coefficients utilized by the equalizer filter for a previous iteration.

摘要翻译： 一种用于在包括均衡器滤波器的码分多址（CDMA）接收机中执行码片级均衡（CLE）时降低处理速率的方法和装置。 由接收机的至少一个天线接收的信号以芯片速率的M倍采样。 每个样本流以码片速率被分成M个采样数据流。 优选对每个分割样本数据流执行多路径组合。 然后将样本数据流以码片速率组合成一个组合的采样数据流。 均衡器滤波器以码片速率对组合的采样流进行均衡。 通过将校正项加到由均衡器滤波器用于先前迭代的滤波器系数来调整滤波器系数。

公开(公告)号：US20100296611A1

公开(公告)日：2010-11-25

申请号：US11993342

申请日：2005-06-30

申请人： Alexander A. Maltsev ,  Alexey Rubtsov ,  Andrey Pudeyev ,  Vadim Sergeyev ,  Sergey Tiraspolsky ,  Alexey Davydov

发明人： Alexander A. Maltsev ,  Alexey Rubtsov ,  Andrey Pudeyev ,  Vadim Sergeyev ,  Sergey Tiraspolsky ,  Alexey Davydov

IPC分类号： H04L27/06

CPC分类号： H04B1/70757 ,  H04L2027/0026

摘要： An apparatus, system, method, and article for downlink (DL) preamble processing for initial acquisition are described. The apparatus may include an autocorrelator node to determine an autocorrelation response of samples and to detect a downlink preamble based on the autocorrelation response. The samples may include a periodic sequence having two or more periods. The apparatus may include a frequency domain matched filter processing node to perform downlink preamble recognition based on a maximum peak of a frequency domain matched filter response and on an index of the downlink preamble. Other embodiments are described and claimed.

摘要翻译： 描述用于初始采集的下行链路（DL）前导码处理的装置，系统，方法和文章。 该装置可以包括自相关器节点，用于确定采样的自相关响应并且基于自相关响应来检测下行链路前导码。 样本可以包括具有两个或更多个周期的周期序列。 该装置可以包括频域匹配滤波处理节点，用于基于频域匹配滤波器响应的最大峰值和下行链路前导码的索引来执行下行链路前导码识别。 描述和要求保护其他实施例。

公开(公告)号：US07835423B2

公开(公告)日：2010-11-16

申请号：US11780929

申请日：2007-07-20

申请人： Yukitoshi Sanada ,  Hideki Yokoshima ,  Masayoshi Abe ,  Yuya Kondo

发明人： Yukitoshi Sanada ,  Hideki Yokoshima ,  Masayoshi Abe ,  Yuya Kondo

IPC分类号： H04B1/00

CPC分类号： H04B7/0845 ,  H04B1/70757 ,  H04B1/7115

摘要： This application discloses, among other things, a receiving device including channel signal output unit for sampling a received signal at a sampling rate switched one of in a predetermined range and between a plurality of values and outputting a channel signal, control unit for controlling the sampling rate in the channel signal output unit, response estimation unit for estimating a response based on the channel signal output by the channel signal output unit, evaluation unit for evaluating a reception characteristic based on an estimation result of the response by the response estimation unit, and determination unit for determining the sampling rate in the channel signal output unit based on an evaluation of the reception characteristic at a plurality of sampling rates by the evaluation unit.

摘要翻译： 本申请尤其公开了一种包括信道信号输出单元的接收装置，用于以预定范围内切换的多个采样率和多个值之间的采样率采样接收信号，并输出信道信号，控制单元用于控制采样 信道信号输出单元中的速率，用于基于由信道信号输出单元输出的信道信号来估计响应的响应估计单元，基于响应估计单元的响应的估计结果来评估接收特性的评估单元，以及 确定单元，用于基于由评估单元对多个采样率的接收特性的评估来确定信道信号输出单元中的采样率。

公开(公告)号：US07672358B2

公开(公告)日：2010-03-02

申请号：US11329546

申请日：2006-01-11

申请人： Charles Abraham ,  Donald L. Fuchs

发明人： Charles Abraham ,  Donald L. Fuchs

IPC分类号： H04L27/30

CPC分类号： G06F17/15 ,  G01S1/045 ,  G01S5/0205 ,  G01S19/22 ,  G01S19/235 ,  G01S19/254 ,  G01S19/256 ,  G01S19/30 ,  G01S19/37 ,  H04B1/70752 ,  H04B1/70757 ,  H04B1/7077 ,  H04B1/709 ,  H04B1/7095 ,  H04B2201/70715

摘要： A method and apparatus for selecting a signal processing resolution. A received signal is processed using a first resolution. When a multipath condition is detected, the signal is processed using a second resolution.

公开(公告)号：US07656935B2

公开(公告)日：2010-02-02

申请号：US11621145

申请日：2007-01-09

申请人： Inyup Kang ,  Mark Roh ,  Brendon L. Johnson

发明人： Inyup Kang ,  Mark Roh ,  Brendon L. Johnson

IPC分类号： H04B1/707

CPC分类号： H04B1/70758 ,  H04B1/70757 ,  H04B1/7117

摘要： In general, the invention facilitates searching for energy peaks in spread spectrum wireless communication systems with greater precision. More particularly, various embodiments of the invention may involve reporting not only an energy peak and its associated offset, but also the energy levels corresponding to one or more offsets occurring before and after the offset at which the energy peak occurs. Interpolation or extrapolation techniques may be used to predict the actual location of an energy peak based on the apparent location of the peak and the energy levels observed at surrounding offsets.

摘要翻译： 通常，本发明有助于以更高的精度搜索扩频无线通信系统中的能量峰值。 更具体地，本发明的各种实施例可以包括不仅报告能量峰值及其相关联的偏移，还报告对应于发生能量峰值的偏移之前和之后发生的一个或多个偏移的能级。 可以使用插值或外插技术来基于峰值的表观位置和在周围偏移处观察到的能量水平来预测能量峰值的实际位置。

公开(公告)号：US20080219328A1

公开(公告)日：2008-09-11

申请号：US11871013

申请日：2007-10-11

申请人： Yukitoshi Sanada ,  Hideki Yokoshima ,  Masayoshi Abe ,  Yuya Kondo ,  Mario Tokoro

发明人： Yukitoshi Sanada ,  Hideki Yokoshima ,  Masayoshi Abe ,  Yuya Kondo ,  Mario Tokoro

IPC分类号： H04B1/707 ,  H04B7/08

CPC分类号： H04B1/70757

摘要： A receiver apparatus includes a plurality of signal receiving means; a plurality of channel signal outputting means for sampling signals received by the plurality of signal receiving means at sampling rates switched within a predetermined range or between multiple values and outputting channel signals; control means for controlling the sampling rates in the plurality of channel signal outputting means; response estimating means for estimating responses on the basis of the channel signals output from the plurality of channel signal outputting means; evaluating means for evaluating reception characteristics on the basis of the responses estimated by the response estimating means; and determining means for determining the sampling rates in the plurality of channel signal outputting means on the basis of the reception characteristics at the multiple sampling rates evaluated by the evaluating means.

摘要翻译： 接收机装置包括多个信号接收装置; 多个信道信号输出装置，用于以在预定范围内或多个值之间切换的采样速率对由多个信号接收装置接收的信号进行采样，并输出信道信号; 用于控制多个通道信号输出装置中的采样率的控制装置; 响应估计装置，用于根据从多个信道信号输出装置输出的信道信号来估计响应; 评估装置，用于基于由所述响应估计装置估计的响应来评估接收特性; 以及确定装置，用于基于由评估装置评估的多个采样率的接收特性来确定多个信道信号输出装置中的采样率。