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1. 发明授权

US07519395B2 Adaptive cancellation of fixed interferers 失效
标题翻译：固定干扰源的自适应消除
公开(公告)号：US07519395B2
公开(公告)日：2009-04-14
申请号：US11204883
申请日：2005-08-16
申请人： David K. Mesecher , Fatih Ozluturk
发明人： David K. Mesecher , Fatih Ozluturk
IPC分类号： H04B1/38
CPC分类号： H04B1/126 , H01Q1/246 , H01Q3/2629
摘要： An improved base station which cancels the effects of known fixed interference sources produces a signal substantially free from the interference sources thereby increasing total channel capacity. The adaptive interference canceller base station includes a main antenna for receiving signals from other communication stations and at least one directional antenna directed toward an interference source. The main and directional antennas are coupled together such that an output signal substantially free from the interference is generated.
摘要翻译：一种改进的基站，其消除已知固定干扰源的影响并且产生基本上不受干扰源的信号，从而增加总信道容量。自适应干扰消除器基站包括用于从其他通信站接收信号的主天线和指向干扰源的至少一个定向天线。主和定向天线耦合在一起，使得产生基本上不受干扰的输出信号。

2. 发明申请

US20110228710A1 INTERFERENCE CANCELLATION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM 审中-公开
标题翻译：传播频谱通信系统中的干扰消除
公开(公告)号：US20110228710A1
公开(公告)日：2011-09-22
申请号：US13117233
申请日：2011-05-27
申请人： David K. Mesecher , Alexander Reznik , Donald M. Grieco , Gary Cheung
发明人： David K. Mesecher , Alexander Reznik , Donald M. Grieco , Gary Cheung
IPC分类号： H04W88/08 , H04J3/00 , H04J1/00 , H04W88/02
CPC分类号： H04B1/7103 , H04B1/7097 , H04B1/712 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04B7/0634 , H04B7/0678 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04B7/0891 , H04B2201/70701 , H04J13/0003
摘要： A code division multiple access communication system transmits a pilot and traffic signal over a shared spectrum. The pilot and traffic signal have an associated code and are received over the shared spectrum. The received signals are sampled and the samples are delayed to produce a window. A weighted value for each despread pilot code window sample is determined using an adaptive algorithm. Each window sample is despread with a traffic code. Each despread traffic code window sample is weighted according to a weight corresponding to its respective pilot code sample.
摘要翻译：码分多址通信系统通过共享频谱发送导频和业务信号。导频和业务信号具有相关代码，并通过共享频谱接收。接收到的信号被采样，样品被延迟以产生窗口。使用自适应算法确定每个解扩导频码窗口样本的加权值。每个窗口样本都使用流量代码进行解扩。每个去扩展的交通码窗口样本根据与其各自的导频码样本相对应的权重进行加权。

3. 发明授权

US06748008B2 Base station for distance determination 有权
标题翻译：基站距离测定
公开(公告)号：US06748008B2
公开(公告)日：2004-06-08
申请号：US10074398
申请日：2002-02-12
申请人： David K. Mesecher
发明人： David K. Mesecher
IPC分类号： H04B1500
CPC分类号： H04W64/00 , G01S5/0215 , G01S5/12
摘要： A base station transmits a first spread spectrum signal having a first code. It receives and analyzes an impulse response of multipath components of a second spread spectrum signal having a second code to determine a first received component. The second signal is time synchronized with the first spread spectrum signal. A distance determination is made based on in part a timing difference between the second code of the received second signal and the first code of the base station's transmitted first signal and the determined first received components for that base station's received second signal.
摘要翻译：基站发送具有第一码的第一扩频信号。它接收并分析具有第二码的第二扩频信号的多径分量的脉冲响应，以确定第一接收分量。第二信号与第一扩频信号时间同步。基于部分地基于接收到的第二信号的第二代码与基站发送的第一信号的第一代码和所确定的基站接收的第二信号的第一接收分量之间的定时差进行距离确定。

4. 发明授权

US06278726B1 Interference cancellation in a spread spectrum communication system 有权
标题翻译：扩频通信系统中的干扰消除
公开(公告)号：US06278726B1
公开(公告)日：2001-08-21
申请号：US09659858
申请日：2000-09-11
申请人： David K. Mesecher , Alexander Reznik , Donald Grieco , Gary Cheung
发明人： David K. Mesecher , Alexander Reznik , Donald Grieco , Gary Cheung
IPC分类号： H04B1707
CPC分类号： H04B1/7103 , H04B1/7097 , H04B1/712 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04B7/0634 , H04B7/0678 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04B7/0891 , H04B2201/70701 , H04J13/0003
摘要： A transmitter transmits a spread spectrum pilot and data signal. Each signal has an associated chip code. A receiver receives the transmitted pilot and data signal. The received pilot signal is filtered using the pilot chip code and weights are determined for components of the received pilot signal using an adaptive algorithm. The received data signal is weighted by the determined weights and filtered with the data signal chip code to recover data from the received data signal.
摘要翻译：发射机发射扩频导频和数据信号。每个信号都有相关的芯片代码。接收机接收发送的导频和数据信号。使用导频芯片码对接收的导频信号进行滤波，并使用自适应算法确定接收到的导频信号的分量的权重。接收到的数据信号通过确定的权重进行加权，并用数据信号芯片代码进行滤波，以从接收到的数据信号中恢复数据。

5. 发明授权

US08195241B2 High-performance cellular telephone receiver 有权
标题翻译：高性能手机接收机
公开(公告)号：US08195241B2
公开(公告)日：2012-06-05
申请号：US12645683
申请日：2009-12-23
申请人： David K. Mesecher
发明人： David K. Mesecher
IPC分类号： H04M1/00
CPC分类号： H04B7/086 , H04L25/0204 , H04L25/0226 , H04L25/03343 , H04L2025/03426 , H04L2025/03783
摘要： A receiver includes a plurality of antennas; a plurality of front end circuits producing digital signals in response to signals received on the antennas; a beamforming unit weighting and summing the digital signals to produce a first signal; a first stage including a first plurality of modems producing first bit streams in response to components of the first signal, a first plurality of signal reconstruction units producing first signal replicas in response to the first bit streams, and a first active cancellation unit weighting the first signal replicas and subtracting the weighted first signal replicas from the first signal to produce a second signal; and a second stage including a second plurality of modems producing second bit streams in response to components of the second signal, a second plurality of signal reconstruction units producing second signal replicas in response to the second bit streams, and a second active cancellation unit weighting the second signal replicas and subtracting the weighted second signal replicas from the first signal to produce a third signal. A method implemented by the receiver is also provided.
摘要翻译：接收机包括多个天线; 多个前端电路响应于在天线上接收的信号产生数字信号; 波束成形单元对数字信号进行加权和求和以产生第一信号; 第一级，包括响应于第一信号的分量产生第一比特流的第一多个调制解调器，响应于第一比特流产生第一信号副本的第一多个信号重建单元，以及第一主动消除单元，信号副本，并从第一信号中减去加权的第一信号副本以产生第二信号; 以及第二级，包括响应于第二信号的分量产生第二比特流的第二多个调制解调器，响应于第二比特流产生第二信号副本的第二多个信号重建单元，以及第二主动消除单元，第二信号副本，并从第一信号中减去加权的第二信号副本以产生第三信号。还提供了由接收机实现的方法。

6. 发明申请

US20110026496A1 CODE DIVISION MULTIPLE ACCESS TRANSMISSION ANTENNA WEIGHTING 审中-公开
标题翻译：编码部分多路访问天线称重
公开(公告)号：US20110026496A1
公开(公告)日：2011-02-03
申请号：US12901616
申请日：2010-10-11
申请人： David K. Mesecher
发明人： David K. Mesecher
IPC分类号： H04B7/216
CPC分类号： H04B1/712 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04B7/0634 , H04B7/0678 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04B7/0891 , H04B2201/70701 , H04J13/0003
摘要： A code division multiple access communication system has a base station with a plurality of transmitting antennas. From each transmitting antenna of the base station, a pilot signal is transmitted having a different chip sequence than the other transmitting antenna. At a user equipment, the transmitted pilot signals are received from each transmitting antenna. A weight adjustment is derived in response to the received transmitted pilot signals. The user equipment transmits the weight adjustment to the base station. The transmitted weight adjustment is received from the user equipment. A data signal is processed to produce a plurality of versions of the data signal. At least a portion of each processed data signal has a different chip sequence than the other processed data signal version. At least one processed data signal version is weighted by a weight value adjusted in response to the received transmitted weight adjustment. From each transmitting antenna, a different one of the data signal versions is transmitted and the transmitted data signal versions are received at the user equipment.
摘要翻译：码分多址通信系统具有具有多个发送天线的基站。从基站的每个发送天线发送具有与另一发送天线不同的码片序列的导频信号。在用户设备中，从每个发送天线接收所发送的导频信号。响应于接收到的发送导频信号导出权重调整。用户设备向基站发送权重调整。从用户设备接收发送的权重调整。处理数据信号以产生数据信号的多个版本。每个处理的数据信号的至少一部分具有与其它处理的数据信号版本不同的码片序列。至少一个经处理的数据信号版本通过响应于接收到的发送权重调整而调整的权重值加权。从每个发送天线，发送不同的数据信号版本，并且在用户设备处接收所发送的数据信号版本。

7. 发明授权

US07813413B2 Antenna array communication using spreading codes 有权
标题翻译：天线阵列通信使用扩频码
公开(公告)号：US07813413B2
公开(公告)日：2010-10-12
申请号：US11315795
申请日：2005-12-22
申请人： David K. Mesecher
发明人： David K. Mesecher
IPC分类号： H04K1/00
CPC分类号： H04B1/712 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04B7/0634 , H04B7/0678 , H04B7/0845 , H04B7/0854 , H04B7/0857 , H04B7/0891 , H04B2201/70701 , H04J13/0003
摘要： A first reference signal and a first data signal are transmitted from a first antenna of a base station and a second reference signal and a second data signal are transmitted from a second antenna of the base station. The first and second antennas are difference antennas. The first and second reference signals having different codes and the first and second data signals having different codes. The received first and second reference signals are combined using an adaptive algorithm producing adaptive algorithm weights. Data from the first and second data signals is recovered by combining the first and second data signal in response to adaptive algorithm weights.
摘要翻译：从基站的第一天线发送第一参考信号和第一数据信号，并且从基站的第二天线发送第二参考信号和第二数据信号。第一和第二天线是差分天线。第一和第二参考信号具有不同的代码，第一和第二数据信号具有不同的代码。使用产生自适应算法权重的自适应算法来组合接收的第一和第二参考信号。响应于自适应算法权重，通过组合第一和第二数据信号来恢复来自第一和第二数据信号的数据。

8. 发明授权

US06944209B2 Processing for improved performance and reduced pilot 失效
标题翻译：处理改进性能和减少飞行员
公开(公告)号：US06944209B2
公开(公告)日：2005-09-13
申请号：US10764763
申请日：2004-01-26
申请人： Faith M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Faith M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： H04L27/02 , H04B1/707 , H04B1/7075 , H04B1/7085 , H04B1/7093 , H04B1/7115 , H04B1/69
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： The present invention is a user equipment (UE), including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.
摘要翻译：本发明是一种用户设备（UE），其包括用于在通信信号中接收多个信道中的一个的接收机和方法。自适应匹配滤波器通过使用加权信号产生滤波信号。瑞克接收机使用伪噪声信号发生器产生滤波器加权信号。信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。硬决策处理器接收所选信道的解扩频道信号并产生校正信号。锁相环至少使用解扩导频信号并产生相位校正信号，该信号被施加以产生相位校正的信道信号。

9. 发明授权

US06707845B2 Processing for improved performance and reduced pilot 有权
标题翻译：处理改进性能和减少飞行员
公开(公告)号：US06707845B2
公开(公告)日：2004-03-16
申请号：US10357869
申请日：2003-02-03
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： A04B1713
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： The present invention is a communication system, including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.
摘要翻译：本发明是一种通信系统，包括用于在通信信号中接收多个信道中的一个的接收机和方法。自适应匹配滤波器通过使用加权信号产生滤波信号。瑞克接收机使用伪噪声信号发生器产生滤波器加权信号。信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。硬决策处理器接收所选信道的解扩频道信号并产生校正信号。锁相环至少使用解扩导频信号并产生相位校正信号，该信号被施加以产生相位校正的信道信号。

10. 发明授权

US06603800B1 CDMA location 有权
标题翻译： CDMA位置
公开(公告)号：US06603800B1
公开(公告)日：2003-08-05
申请号：US09274081
申请日：1999-03-22
申请人： David K. Mesecher
发明人： David K. Mesecher
IPC分类号： H04B1500
CPC分类号： H04W64/00 , G01S5/0215 , G01S5/12
摘要： The invention determines the geographic location of a subscriber unit within a CDMA communication system. At least one base station transmits a spread spectrum signal with a chip code sequence unique to that base station. A subscriber unit receives the base station signal and transmits a spread spectrum signal with a unique chip code sequence time synchronized with the chip code sequence of the received base station signal. The base station receives the subscriber unit signal and compares the chip code sequence of the received subscriber unit signal with the chip code sequence signal transmitted by the base station to determine the location of the subscriber unit.
摘要翻译：本发明确定CDMA通信系统内用户单元的地理位置。至少一个基站发送具有该基站唯一的码片序列的扩频信号。用户单元接收基站信号并以与所接收的基站信号的码片序列同步的唯一码片序列发送扩频信号。基站接收用户单元信号，并将接收到的用户单元信号的码片序列与由基站发送的码片序列信号进行比较，以确定用户单元的位置。

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