公开(公告)号：US20030156629A1

公开(公告)日：2003-08-21

申请号：US10357869

申请日：2003-02-03

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  David K. Mesecher ,  Alexander M. Jacques

IPC: H04B001/707

CPC classification number: H04B1/7085 ,  H04B1/30 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/7093 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0212 ,  H04L27/0014 ,  H04L2027/0067

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20030043776A1

公开(公告)日：2003-03-06

申请号：US10271400

申请日：2002-10-15

Applicant: InterDigital Technology Corporation

Inventor： Gary R. Lomp ,  Leonid Kazakevich ,  Jeffrey S. Polan ,  David K. Mesecher

IPC: H04B007/216

CPC classification number: H04B7/0894 ,  H04J13/00 ,  H04W52/52

Abstract: A CDMA base station includes an antenna system having multiple antennas and delay units for receiving a transmitted signal and outputting a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by a modem, which compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the base station. Where the antenna system is to be remotely located from related signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system.

公开(公告)号：US20020094016A1

公开(公告)日：2002-07-18

申请号：US10068718

申请日：2002-02-06

Applicant: InterDigital Technology Corporation

Inventor： David K. Mesecher

IPC: H04B001/69

CPC classification number: H04B1/712 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0678 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0857 ,  H04B7/0891 ,  H04B2201/70701 ,  H04J13/0003

Abstract: A base station has a plurality of transmitting antennas. From each transmitting antenna, a reference signal having a code uniquely associated with that antenna is transmitted. A data signal is transmitted such that different spread spectrum versions of the data signal are transmitted from each antenna. Each version has a different code for the respective transmitting antenna.

Abstract translation: 基站具有多个发送天线。 从每个发送天线发送具有与该天线唯一相关联的代码的参考信号。 发送数据信号，使得从每个天线发送数据信号的不同扩频版本。 每个版本对于相应的发射天线具有不同的代码。

公开(公告)号：US20040208237A1

公开(公告)日：2004-10-21

申请号：US10838599

申请日：2004-05-04

Applicant: InterDigital Technology Corporation

Inventor： David K. Mesecher

IPC: H04B001/707

CPC classification number: H04W64/00 ,  G01S5/0215 ,  G01S5/12

Abstract: A base station comprises a plurality of antennas. Each of the antennas is separated by a known distance. A first spread spectrum signal is transmitted having a first code. Using the plurality of antennas, a second spread spectrum signal is received having a second code. The second spread spectrum 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 spread spectrum signal and the first code of the base station's transmitted first spread spectrum signal. A phase difference of a carrier signal of the second spread spectrum signal as received by each of the plurality of antennas is compared. An angle of the received second spread spectrum signal is determined using the known distance between the antennas and the phase difference. A location of a source of the second spread spectrum signal is determined using the determined angle and the distance determination.

Abstract translation: 基站包括多个天线。 每个天线以已知的距离分开。 发送具有第一码的第一扩频信号。 使用多个天线，接收具有第二码的第二扩频信号。 第二扩频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扩频信号的第二码与基站发送的第一扩频信号的第一码之间的定时差进行距离确定。 比较由多个天线中的每一个接收的第二扩频信号的载波信号的相位差。 使用天线之间的已知距离和相位差来确定接收的第二扩频信号的角度。 使用所确定的角度和距离确定来确定第二扩频信号的源的位置。

公开(公告)号：US20020141484A1

公开(公告)日：2002-10-03

申请号：US10074399

申请日：2002-02-12

Applicant: InterDigital Technology Corporation

Inventor： David K. Mesecher

IPC: H04K001/00

CPC classification number: H04W64/00 ,  G01S5/0215 ,  G01S5/12

Abstract: A subscriber unit receives a plurality of first spread spectrum signals. Each first spread spectrum signal has a first code. An impulse response of multipath components of each received first spread spectrum signal are analyzed to determine a first received component of that received first spread spectrum signal. In one embodiment, for each received first spread spectrum signal, a second spread spectrum signal having a second chip code time synchronized to the first received component of that received first spread spectrum signal is transmitted. In another embodiment, a code timing difference is determined between the first received components of the received first spread spectrum signals. The code timing difference is transmitted.

Abstract translation: 用户单元接收多个第一扩频信号。 每个第一扩频信号具有第一码。 分析每个接收到的第一扩频信号的多径分量的脉冲响应，以确定该接收到的第一扩频信号的第一接收分量。 在一个实施例中，对于每个接收到的第一扩频信号，发送具有与接收到的第一扩频信号的第一接收分量同步的第二码片时间的第二扩频信号。 在另一实施例中，在所接收的第一扩频信号的第一接收分量之间确定码定时差。 传送码定时差。

公开(公告)号：US20020085620A1

公开(公告)日：2002-07-04

申请号：US10068659

申请日：2002-02-06

Applicant: InterDigital Technology Corporation

Inventor： David K. Mesecher

IPC: H04B001/69

CPC classification number: H04B1/712 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0678 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0857 ,  H04B7/0891 ,  H04B2201/70701 ,  H04J13/0003

Abstract: The invention provides for transmission and reception of a data signal using a plurality of transmitting antennas. Each antenna transmits a different reference signal having a pseudo random chip code sequence. A receiver filters each transmitted reference signal using that reference signal's chip code. The filtered reference signals are weighted and combined. Each reference signal's weight is adaptively adjusted in part on a signal quality of the combined signal. A data signal is transmitted such that different spread spectrum versions of the data signal are transmitted from each transmitting antenna. Each version having a different chip code identifier. Upon reception, each version is filtered with its associated chip code. The filtered versions are weighted in accordance with the adjusted weights associated with the reference signal of the respective antenna.

Abstract translation: 本发明提供使用多个发送天线的数据信号的发送和接收。 每个天线发送具有伪随机码片序列的不同参考信号。 接收机使用该参考信号的芯片码对每个发送的参考信号进行滤波。 滤波后的参考信号被加权并组合。 每个参考信号的权重部分地由组合信号的信号质量自适应地调整。 发送数据信号，使得从每个发送天线发送数据信号的不同扩频版本。 每个版本具有不同的芯片代码标识符。 接收后，每个版本都会用相关的芯片代码进行过滤。 滤波版本根据与相应天线的参考信号相关联的经调整的权重被加权。

公开(公告)号：US20020002065A1

公开(公告)日：2002-01-03

申请号：US09888882

申请日：2001-06-25

Applicant: InterDigital Technology Corporation

Inventor： David K. Mesecher ,  Fatih M. Ozluturk

IPC: H04M001/00

CPC classification number: H04B1/126 ,  H01Q1/246 ,  H01Q3/2629

Abstract: 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 canceler system 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.

Abstract translation: 消除已知固定干扰源的影响的改进的基站产生基本上不受干扰源的信号从而增加总信道容量。 自适应干扰消除器系统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。

公开(公告)号：US20040161060A1

公开(公告)日：2004-08-19

申请号：US10775573

申请日：2004-02-09

Applicant: InterDigital Technology Corporation

Inventor： Gary R. Lomp ,  Leonid Kazakevich ,  Jeffrey S. Polan ,  David K. Mesecher

IPC: H03D001/00 ,  H04L001/02

CPC classification number: H04B7/0894 ,  H04J13/00 ,  H04W52/52

Abstract: A communication station includes an antenna system having multiple antennas and delay units for receiving a transmitted signal and outputting a combined signal having a known distortion imparted by the antenna system. The combined signal is in turn processed by a modem, which compensates for the known distortion in a manner which provides improved signal gain. The improved signal gain permits a reduction in transmit power and, accordingly, increased capacity of the communication station. Where the antenna system is to be remotely located from related signal processing equipment, separate units for the RF receiver/transmitter and the other signal processing equipment are provided so that the RF receiver/transmitter may also be remotely located along with the antenna system.

Abstract translation: 通信站包括具有多个天线的天线系统和用于接收发送信号的延迟单元，并输出具有由天线系统赋予的已知失真的组合信号。 组合的信号又由调制解调器进行处理，调制解调器以提供改善的信号增益的方式补偿已知的失真。 改进的信号增益允许传输功率的降低，并因此降低通信站的容量。 在天线系统要远离相关信号处理设备的地方，RF接收机/发射机和其他信号处理设备的单独单元被提供，使得RF接收机/发射机也可以与天线系统一起远程定位。

公开(公告)号：US20040156424A1

公开(公告)日：2004-08-12

申请号：US10764763

申请日：2004-01-26

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  David K. Mesecher ,  Alexander M. Jacques

IPC: H04B001/707

CPC classification number: H04B1/7085 ,  H04B1/30 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/7093 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0212 ,  H04L27/0014 ,  H04L2027/0067

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20030198284A1

公开(公告)日：2003-10-23

申请号：US10423230

申请日：2003-04-25

Applicant: InterDigital Technology Corporation A Delaware Corporation

Inventor： David K. Mesecher ,  Alexander Reznik ,  Donald Grieco ,  Gary Cheung

IPC: H04B001/707

CPC classification number: 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

Abstract: 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. Signals are received over the shared spectrum. The received signals are sampled. The samples are delayed to produce a window. The window has evenly time spaced samples. Each window sample is despread with a pilot code. A weight 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 with a corresponding weight of the determined weights. The despread traffic code window sample are combined as data of the traffic signal.

Abstract translation: 码分多址通信系统通过共享频谱发送导频和业务信号。 飞行员和交通信号灯具有相关代码。 通过共享频谱接收信号。 接收到的信号被采样。 样品被延迟产生窗口。 窗口具有均匀的时间间隔样本。 每个窗口样本用导频代码解扩。 使用自适应算法确定每个解扩导频码窗口采样的权重。 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用确定的权重的相应权重进行加权。 解扩的业务码窗口样本被合并为业务信号的数据。