公开(公告)号：US07474688B2

公开(公告)日：2009-01-06

申请号：US10651282

申请日：2003-08-28

Applicant: John G. McDonough ,  Gibong Jeong ,  Karim Abdulla ,  Rajiv R. Nambiar

Inventor： John G. McDonough ,  Gibong Jeong ,  Karim Abdulla ,  Rajiv R. Nambiar

IPC: H04B1/00

CPC classification number: H04B1/708 ,  H04B2201/70711 ,  H04J13/0044 ,  H04J13/12

Abstract: System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher. A preferred embodiment comprises the specification of a hypothesis for a particular communications network. The hypothesis can then be used to generate a pseudo-random number (PN) sequence that is provided to a searcher. The searcher can then make adjustments to the PN sequence to bring the PN sequence to conformity with requirements of the particular communications network. The adjustment to the PN sequence permits the use of a multi-mode searcher to perform searches for signals of various communications networks with minimal hardware dedicated to each communications network.

Abstract translation: 使用多模式搜索器检测多个直接序列扩频信号的系统和方法。 优选实施例包括对特定通信网络的假设的规定。 然后可以使用该假设来产生提供给搜索者的伪随机数（PN）序列。 然后，搜索者可以对PN序列进行调整，使PN序列符合特定通信网络的要求。 对PN序列的调整允许使用多模式搜索器以专用于每个通信网络的最小硬件来执行各种通信网络的信号的搜索。

公开(公告)号：US20080080468A1

公开(公告)日：2008-04-03

申请号：US11818055

申请日：2007-06-12

Applicant: John Zijun Shen ,  Paul D. Krivacek ,  Thomas J. Barber ,  Lidwine Martinot ,  Aiguo Yan ,  Marko Kocic

Inventor： John Zijun Shen ,  Paul D. Krivacek ,  Thomas J. Barber ,  Lidwine Martinot ,  Aiguo Yan ,  Marko Kocic

IPC: H04B7/216

CPC classification number: H04B1/7105 ,  H04B2201/70707 ,  H04B2201/70711

Abstract: A joint detection system is configured to perform joint detection of received signals and includes ajoint detection accelerator and a host processor. The joint detection accelerator may include a memory unit to store input data values, intermediate results and output data values; one or more computation units to process the input data values and the intermediate results, and to provide output data values to the memory unit; a controller to control the memory and the one or more computation units to perform joint detection processing; and an external interface to receive the input data values from the host processor and to provide output data values to the host processor. The computation units may include a complex multiply accumulate unit, a simplified complex multiply accumulate unit and a normalized floating point divider. The memory unit may include an input memory, a matrix memory, a main memory and an output memory.

Abstract translation: 联合检测系统被配置为执行接收信号的联合检测，并且包括联合检测加速器和主机处理器。 联合检测加速器可以包括用于存储输入数据值，中间结果和输出数据值的存储单元; 一个或多个计算单元，用于处理输入数据值和中间结果，并向存储器单元提供输出数据值; 控制器，用于控制存储器和一个或多个计算单元进行联合检测处理; 以及用于从主处理器接收输入数据值并向主机处理器提供输出数据值的外部接口。 计算单元可以包括复数乘法单元，简化复乘法累积单元和归一化浮点除法器。 存储器单元可以包括输入存储器，矩阵存储器，主存储器和输出存储器。

公开(公告)号：US07218668B2

公开(公告)日：2007-05-15

申请号：US10099546

申请日：2002-03-14

Applicant: John H. Oates ,  Jonathan E. Greene

Inventor： John H. Oates ,  Jonathan E. Greene

IPC: H04B1/69 ,  H04B1/707 ,  H04B7/216

CPC classification number: H04B1/71052 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/71075 ,  H04B1/7115 ,  H04B2201/70707 ,  H04B2201/70711

Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.

Abstract translation: 本发明提供了用于多用户检测（MUD）处理的方法和装置，其具有例如在改进容量CDMA和其它无线基站中的应用。 本发明的一个方面提供一种用于在CDMA短码频谱波形中检测用户发送符号的多处理器，多用户检测系统。 第一处理元件生成表示与一个用户相关联的短码与与一个或多个其他用户相关联的短码之间的相关性的矩阵（以下称为“伽马矩阵”）。 一组第二处理元件例如从伽马矩阵生成基于它们的幅度和时间滞后的用户波形之间的互相关的矩阵（以下称为“R矩阵”）。 第三处理单元产生作为R矩阵的函数的用户发送符号的估计。

公开(公告)号：US07210062B2

公开(公告)日：2007-04-24

申请号：US10099545

申请日：2002-03-14

Applicant: John H. Oates ,  Steven R. Imperiali ,  Alden J. Fuchs ,  Kathleen J. Jacques ,  Jonathan E. Greene ,  William J. Jenkins ,  Frank P. Lauginiger ,  David E. Majchrzak ,  Paul E. Cantrell ,  Mirza Cifric ,  Ian N. Dunn ,  Michael J. Vinskus

Inventor： John H. Oates ,  Steven R. Imperiali ,  Alden J. Fuchs ,  Kathleen J. Jacques ,  Jonathan E. Greene ,  William J. Jenkins ,  Frank P. Lauginiger ,  David E. Majchrzak ,  Paul E. Cantrell ,  Mirza Cifric ,  Ian N. Dunn ,  Michael J. Vinskus

IPC: G06F11/00

CPC classification number: H04B1/71052 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/71075 ,  H04B1/7115 ,  H04B2201/70707 ,  H04B2201/70711

Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.

Abstract translation: 本发明提供了用于多用户检测（MUD）处理的方法和装置，其具有例如在改进容量CDMA和其它无线基站中的应用。 本发明的一个方面提供一种用于在CDMA短码频谱波形中检测用户发送符号的多处理器，多用户检测系统。 第一处理元件生成表示与一个用户相关联的短码与与一个或多个其他用户相关联的短码之间的相关性的矩阵（以下称为“伽马矩阵”）。 一组第二处理元件例如从伽马矩阵生成基于它们的幅度和时间滞后的用户波形之间的互相关的矩阵（以下称为“R矩阵”）。 第三处理元素产生用户传输符号作为R矩阵的函数的估计。

公开(公告)号：US07203221B2

公开(公告)日：2007-04-10

申请号：US10099916

申请日：2002-03-14

Applicant: John H. Oates

Inventor： John H. Oates

IPC: H04B1/00

CPC classification number: H04B1/71052 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/71075 ,  H04B1/7115 ,  H04B2201/70707 ,  H04B2201/70711

Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.

Abstract translation: 本发明提供了用于多用户检测（MUD）处理的方法和装置，其具有例如在改进容量CDMA和其它无线基站中的应用。 本发明的一个方面提供一种用于在CDMA短码频谱波形中检测用户发送符号的多处理器，多用户检测系统。 第一处理元件生成表示与一个用户相关联的短码与与一个或多个其他用户相关联的短码之间的相关性的矩阵（以下称为“伽马矩阵”）。 一组第二处理元件例如从伽马矩阵生成基于它们的幅度和时间滞后的用户波形之间的互相关的矩阵（以下称为“R矩阵”）。 第三处理单元产生作为R矩阵的函数的用户发送符号的估计。

公开(公告)号：US07164706B2

公开(公告)日：2007-01-16

申请号：US10098628

申请日：2002-03-14

Applicant: John H. Oates

Inventor： John H. Oates

IPC: H04B1/69 ,  H04B1/713

CPC classification number: H04B1/71052 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/71075 ,  H04B1/7115 ,  H04B2201/70707 ,  H04B2201/70711

Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.

Abstract translation: 本发明提供了用于多用户检测（MUD）处理的方法和装置，其具有例如在改进容量CDMA和其它无线基站中的应用。 本发明的一个方面提供一种用于在CDMA短码频谱波形中检测用户发送符号的多处理器，多用户检测系统。 第一处理元件生成表示与一个用户相关联的短码与与一个或多个其他用户相关联的短码之间的相关性的矩阵（以下称为“伽马矩阵”）。 一组第二处理元件例如从伽马矩阵生成基于它们的幅度和时间滞后的用户波形之间的互相关的矩阵（以下称为“R矩阵”）。 第三处理元素产生用户传输符号作为R矩阵的函数的估计。

公开(公告)号：US07110437B2

公开(公告)日：2006-09-19

申请号：US10099889

申请日：2002-03-14

Applicant: John H. Oates ,  Steven R. Imperiali ,  Alden J. Fuchs ,  Kathleen J. Jacques ,  Jonathan E. Greene ,  William J. Jenkins ,  Frank P. Lauginiger ,  David E. Majchrzak ,  Paul E. Cantrell ,  Mirza Cifric ,  Ian N. Dunn ,  Michael J. Vinskus

Inventor： John H. Oates ,  Steven R. Imperiali ,  Alden J. Fuchs ,  Kathleen J. Jacques ,  Jonathan E. Greene ,  William J. Jenkins ,  Frank P. Lauginiger ,  David E. Majchrzak ,  Paul E. Cantrell ,  Mirza Cifric ,  Ian N. Dunn ,  Michael J. Vinskus

IPC: H04B1/69 ,  H06F13/28 ,  H06F12/00

CPC classification number: H04B1/71052 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/71075 ,  H04B1/7115 ,  H04B2201/70707 ,  H04B2201/70711

Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a digital signal processor (“DSP”) that processes user waveforms. The DSP has an associated memory and an associated direct memory access (“DMA”) controller that controls access to that memory. A programmable logic device (“PLD”) is coupled to the DMA controller and configures it to move data relating to user waveform characteristics from the memory to a buffer external to the DSP.

Abstract translation: 本发明提供了用于多用户检测（MUD）处理的方法和装置，其具有例如在改进容量CDMA和其它无线基站中的应用。 本发明的一个方面提供一种处理用户波形的数字信号处理器（“DSP”）。 DSP具有相关联的存储器和相关联的直接存储器访问（“DMA”）控制器，其控制对该存储器的访问。 可编程逻辑器件（“PLD”）耦合到DMA控制器，并将其配置为将与用户波形特征相关的数据从存储器移动到DSP外部的缓冲器。

公开(公告)号：US07082286B2

公开(公告)日：2006-07-25

申请号：US10412475

申请日：2003-04-11

Applicant: John David Kaewell, Jr. ,  Timothy Berghuis ,  Jan Meyer ,  Peter Bohnhoff ,  Alexander Reznik ,  Edward L. Hepler ,  Michael Koch ,  William C. Hackett ,  David S. Bass ,  Steven Ferrante

Inventor： John David Kaewell, Jr. ,  Timothy Berghuis ,  Jan Meyer ,  Peter Bohnhoff ,  Alexander Reznik ,  Edward L. Hepler ,  Michael Koch ,  William C. Hackett ,  David S. Bass ,  Steven Ferrante

IPC: H04B15/00

CPC classification number: H04B1/7093 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/709 ,  H04B1/7113 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/0491 ,  H04B2201/7071 ,  H04B2201/70711

Abstract: A Node-B/base station has a path searcher and at least one antenna for receiving signals from users. The path searcher comprises a set of correlators. Each correlator correlates an inputted user code with an inputted antenna output of the at least one antenna. An antenna controller selectively couples any output of the at least one antenna to an input of each correlator of the set of correlators. A code phase controller selects a user code for input into the set of correlators. Each delay of a series of delays delays the selected user code by a predetermined amount and each correlator of the set of correlators receives a different code phase delay of the selected user code. A sorter and path selector sorts the output energy levels of each correlator of the sets of correlators and produces a path profile for a user based on the sorted output energy levels.

Abstract translation: 节点B /基站具有路径搜索器和用于从用户接收信号的至少一个天线。 路径搜索器包括一组相关器。 每个相关器将输入的用户代码与至少一个天线的输入的天线输出相关联。 天线控制器选择性地将至少一个天线的任何输出耦合到该组相关器的每个相关器的输入端。 代码相位控制器选择用于输入到该组相关器的用户代码。 一系列延迟的每个延迟将所选择的用户码延迟预定量，并且该组相关器的每个相关器接收所选用户码的不同码相位延迟。 分拣机和路径选择器对相关器组的每个相关器的输出能量进行排序，并且基于排序的输出能级产生用户的路径简档。

公开(公告)号：US20060104389A1

公开(公告)日：2006-05-18

申请号：US11317524

申请日：2005-12-22

Applicant: Ravi Subramanian

Inventor： Ravi Subramanian

IPC: H04L27/06 ,  H04B1/10

CPC classification number: H04B1/0003 ,  H04B1/0007 ,  H04B1/28 ,  H04B1/406 ,  H04B1/70735 ,  H04B1/7085 ,  H04B2201/70701 ,  H04B2201/70711 ,  H04L25/0204

Abstract: A configurable all-digital coherent demodulator system for spread spectrum digital communications is disclosed herein. The demodulator system includes an extended and long-code demodulator (ELCD) coupled to a traffic channel demodulator (TCD) and a parameter estimator (PE). The demodulator also includes a pilot assisted correction device (PACD) that is coupled to the PE and the TCD. The ELCD provides a code-demodulated signal to the TCD and the PE. In turn, the TCD provides a demodulated output data signal to the PE. The PACD corrects the phase error of the demodulated output data based on an error estimate that is fed forward from the PE. Accumulation operations in the ELCD, TCD, and PE are all programmable. Similarly, a phase delay in the PACD is also programmable to provide synchronization with the error estimate from the PE.

Abstract translation: 本文公开了一种用于扩频数字通信的可配置全数字相干解调器系统。 解调器系统包括耦合到业务信道解调器（TCD）和参数估计器（PE）的扩展和长码解调器（ELCD）。 解调器还包括耦合到PE和TCD的导频辅助校正装置（PACD）。 ELCD向TCD和PE提供码解调信号。 反过来，TCD向PE提供解调的输出数据信号。 基于从PE馈送的误差估计，PACD校正解调输出数据的相位误差。 ELCD，TCD和PE中的累加操作都可编程。 类似地，PACD中的相位延迟也是可编程的，以提供与来自PE的误差估计的同步。

公开(公告)号：US07039134B1

公开(公告)日：2006-05-02

申请号：US10050968

申请日：2002-01-22

Applicant: Yaniv Avital ,  Ehud Reshef

Inventor： Yaniv Avital ,  Ehud Reshef

IPC: H04L27/06

CPC classification number: H04B1/707 ,  H04B1/7095 ,  H04B1/7115 ,  H04B2201/70711

Abstract: A reduced complexity correlator that enables the re-use of the most complex portions of a correlator, namely the multiplier and adder. The correlator of the present invention is especially well-suited for use in CDMA and W-CDMA spread spectrum communication systems that require the use of numerous correlators in their operation. Multiple input samples, multiple codes and integration results are stored in shift registers and circularly shifted and clocked out at appropriate clock rates such that the multiplication and accumulation steps of the correlation process are synchronized.

Abstract translation: 一种降低的复杂度相关器，其能够重新使用相关器的最复杂部分，即乘法器和加法器。 本发明的相关器特别适用于需要在其操作中使用大量相关器的CDMA和W-CDMA扩频通信系统。 多个输入样本，多个代码和积分结果存储在移位寄存器中，并以适当的时钟速率循环移位和计时，使得相关处理的乘法和累加步骤同步。