公开(公告)号：US20080130721A1

公开(公告)日：2008-06-05

申请号：US11946744

申请日：2007-11-28

Applicant: Anthony Craig DOLWIN

Inventor： Anthony Craig DOLWIN

IPC: H04B1/707

CPC classification number: H04B1/7113 ,  H04B1/709 ,  H04B1/7115 ,  H04B1/7117 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04B2201/70711

Abstract: A spread spectrum receiver architecture comprising: a spread spectrum signal sampler; a sample delay stage, coupled to the spread spectrum sampler, to provide a set of spread spectrum samples having a plurality of different delays on a delayed sample bus; a plurality of scramble code generators to provide a plurality of scramble codes on a scramble code bus; and a plurality of correlators, each comprising a correlator module coupled to the delayed sample bus and comprising at least one spreading code generator coupled to the scramble code bus, and each said correlator having at least one correlation output.

Abstract translation: 一种扩频接收机架构，包括：扩频信号采样器; 耦合到扩频采样器的采样延迟级，以在延迟的采样总线上提供具有多个不同延迟的一组扩频样本; 多个扰频码发生器，用于在扰码总线上提供多个扰码; 以及多个相关器，每个相关器包括耦合到所述延迟采样总线的相关器模块，并且包括耦合到所述加扰码总线的至少一个扩展码发生器，并且每个所述相关器具有至少一个相关输出。

公开(公告)号：US20080130720A1

公开(公告)日：2008-06-05

申请号：US11946739

申请日：2007-11-28

Applicant: Anthony Craig Dolwin

Inventor： Anthony Craig Dolwin

IPC: H04B1/707

CPC classification number: H04B1/7113 ,  H04B1/709 ,  H04B1/7115 ,  H04B1/7117 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04B2201/70711

Abstract: A method of adjusting the relative timing of a spreading sequence and a sampled input signal for a spread spectrum receiver correlator, the spreading sequence having an associated spreading sequence chip clock, the input signal being sampled at sample clock intervals, the method comprising: delaying the sampled input signal by an integral number of sample clock intervals to provide a fine relative timing adjustment; and delaying the spreading sequence by an integral number of spreading sequence chip clock periods to provide a coarse relative timing adjustment.

Abstract translation: 一种调整扩展序列的相对定时和扩展频谱接收机相关器的采样输入信号的方法，该扩展序列具有相关联的扩频序列码片时钟，该输入信号以采样时钟间隔采样，该方法包括： 采样输入信号以整数个采样时钟间隔提供精确的相对定时调整; 并且将扩展序列延迟整数倍的扩展序列码片时钟周期，以提供粗略的相对定时调整。

公开(公告)号：US07372894B2

公开(公告)日：2008-05-13

申请号：US10774711

申请日：2004-02-09

Applicant: Nidham Ben Rached ,  Thierry Lucidarme

Inventor： Nidham Ben Rached ,  Thierry Lucidarme

IPC: H04B1/00

CPC classification number: H04B1/7117 ,  H04B1/712 ,  H04B2201/70701 ,  H04B2201/7071

Abstract: In a spread spectrum digital radiocommunication receiver, a first estimate of a symbol transmitted by a sender is calculated by applying to a radio signal received a processing taking into account a number N of propagation paths from the sender, a parameter of reliability of the first estimate is evaluated, and when the reliability parameter evaluated does not satisfy a confidence criterion, a second estimate of the symbol is calculated by taking into account at least one (N+1)-th propagation path from the sender in the processing applied to the radio signal received.

Abstract translation: 在扩展频谱数字无线电通信接收机中，通过应用接收的无线电信号来计算发送方发送的符号的第一估计，该处理考虑到来自发送者的传播路径数量N，第一估计的可靠性参数 并且当所评估的可靠性参数不满足置信标准时，通过考虑在应用于无线电的处理中的来自发送者的至少一个第（N + 1）个传播路径来计算符号的第二估计 收到信号。

公开(公告)号：US20080075150A1

公开(公告)日：2008-03-27

申请号：US11901571

申请日：2007-09-17

Applicant: Antoine Rouphael ,  John Hoffmann ,  George Nelson ,  Samir Patel ,  James Proctor ,  Daniel Riley

Inventor： Antoine Rouphael ,  John Hoffmann ,  George Nelson ,  Samir Patel ,  James Proctor ,  Daniel Riley

IPC: H04B1/69

CPC classification number: H04B1/707 ,  H04B1/7105 ,  H04B1/712 ,  H04B2201/70703 ,  H04B2201/70705 ,  H04B2201/7071

Abstract: A single, common correlation filter (CF) core is provided in a receiver for recovery of data from received code division multiple access (CDMA) signals. Signals are received over CDMA channels with different data rates, where the received signals include user information such as pilot and data symbols that have been spread according to different despreading rates including tier 1, tier 2 and tier 3 rates, where tier 1 is the smallest despreading rate. The received signal is correlated at the smallest despreading rate in the correlation filter (CF) by time multiplexing delayed versions of the pseudorandom noise (PN) code. The correlated information is then demultiplexed and pilot-aided QPSK demodulated. The demodulated information is summed at the proper integer multiple of the tier 1 rate to achieve tier 2 and tier 3 despreading rates. According to an embodiment, the three strongest multipaths components in terms of the received power are selected in a window or time period for optimal information recovery.

Abstract translation: 在接收机中提供单个公共相关滤波器（CF）核，用于从接收的码分多址（CDMA）信号中恢复数据。 在具有不同数据速率的CDMA信道上接收信号，其中所接收的信号包括诸如导频和数据符号之类的用户信息，所述导频和数据符号根据不同的解扩速率（包括层1，层2和层3速率）进行扩展，其中层1是最小的 解散率。 接收到的信号通过伪随机噪声（PN）码的延迟版本的时间复用以相关滤波器（CF）中的最小解扩频率相关。 然后将相关信息解复用并导频辅助QPSK解调。 解调信息以1级速率的适当整数倍相加，以实现2级和3级解扩速率。 根据实施例，在用于最佳信息恢复的窗口或时间段中选择关于接收功率的三个最强多径分量。

公开(公告)号：US07317753B2

公开(公告)日：2008-01-08

申请号：US10193599

申请日：2002-07-11

Applicant: George L. Yang

Inventor： George L. Yang

IPC: H04B1/00

CPC classification number: H04B1/7093 ,  H04B2001/70935 ,  H04B2201/7071

Abstract: A dynamic matched filter bank consists of a plurality of matched filters with either the reference signal for each matched filter changes with the time or the input signal to a matched filter is the received signal modified by a different way for a different matched filter. A receiver employed a set of dynamic matched filter banks in a multi-channel spread spectrum communication system consists of a signal register, a block PN generator, a plurality of spreading sequence generators, a plurality of register arrays, a plurality of multiplier arrays, a plurality of matched filters, a plurality of signal combiners, and a controller. The block PN generator generates a section of PN sequence at the end of every symbol period with feedback logic to shift a block of chips each time. A register array captures each section of PN sequence from the block PN generator and delays it for a symbol period. The rest register arrays are in cascade and delay the section of sequence at each of their inputs by one symbol period. The signal register generates a moving section of the received signal. Each of the multiplier arrays multiplies each moving section of the received signal by a section of PN sequence from either the block PN generator or one of the register arrays to provide a input signal to a corresponding matched filter. Each of the matched filter is to find the correlation between the section of its input signal and the section of its reference signal, which is a spreading sequence from a corresponding spreading sequence generator. Each of the signal combiners will combine the components from corresponding matched filters. The controller will monitor the signals from all matched filters and all signal combiners, extract necessary information, and generate various control signals.

Abstract translation: 动态匹配滤波器组由多个匹配滤波器组成，每个匹配滤波器的参考信号随着时间而变化，或者匹配滤波器的输入信号是用不同匹配滤波器以不同方式修改的接收信号。 一种在多通道扩频通信系统中使用一组动态匹配滤波器组的接收机，包括信号寄存器，块PN发生器，多个扩频序列发生器，多个寄存器阵列，多个乘法器阵列， 多个匹配滤波器，多个信号组合器和控制器。 块PN发生器在每个符号周期结束时产生一段PN序列，其中反馈逻辑每次移动一块芯片。 寄存器阵列从块PN发生器捕获PN序列的每个部分，并将其延迟一个符号周期。 其余的寄存器阵列是级联的，并且将每个输入端的序列部分延迟一个符号周期。 信号寄存器产生接收信号的移动部分。 每个乘法器阵列将接收信号的每个移动部分乘以来自块PN发生器或寄存器阵列之一的PN序列的一部分，以向相应的匹配滤波器提供输入信号。 匹配滤波器中的每一个用于找出其输入信号的部分与其参考信号的部分之间的相关性，该参考信号是来自对应的扩展序列发生器的扩展序列。 每个信号组合器将组合来自相应匹配滤波器的分量。 控制器将监控来自所有匹配滤波器和所有信号组合器的信号，提取必要的信息，并产生各种控制信号。

公开(公告)号：US07277474B2

公开(公告)日：2007-10-02

申请号：US10625479

申请日：2003-07-23

Applicant: Abhay Sharma ,  Zoran Zvonar ,  Deepak Mathew ,  Aiguo Yan

Inventor： Abhay Sharma ,  Zoran Zvonar ,  Deepak Mathew ,  Aiguo Yan

IPC: H04B1/707

CPC classification number: H04B1/7117 ,  H04B1/7113 ,  H04B2201/7071

Abstract: A technique for allocating fingers in a path searcher of a multipath receiver involves determining a required number of fingers for each multipath region, determining a number of allocated fingers for each multipath region according to an area-based weighting scheme such that each multipath region that is allocated fewer than its required number of fingers is deemed to have a non-zero residual area, allocating any surplus fingers to multipath regions having non-zero residual areas until either no surplus fingers remain or each multipath region is allocated its required number of fingers, and placing any fingers allocated to each multipath region within the multipath region. Placing the fingers in un-resolvable path scenario involves detecting path location at the edges of multipath region; placing fingers at the edges and placing remaining fingers uniformly between the first and the last path such that the there is a minimum placement separation between the fingers.

Abstract translation: 一种用于在多路径接收机的路径搜索器中分配手指的技术包括确定每个多径区域的所需数量的手指，根据基于区域的加权方案确定每个多径区域的分配的手指的数量，使得每个多径区域是 分配少于其所需数量的手指被认为具有非零残余区域，将任何剩余手指分配给具有非零残余区域的多径区域，直到没有剩余的手指保留，或者每个多径区域被分配其所需数量的手指， 并且分配给多径区域内的每个多径区域的任何手指。 将手指放在不可解决的路径场景中涉及检测多径区域边缘的路径位置; 将手指放置在边缘并将剩余的手指均匀地放置在第一和最后路径之间，使得手指之间存在最小的放置间隔。

公开(公告)号：US07254649B2

公开(公告)日：2007-08-07

申请号：US11198692

申请日：2005-08-05

Applicant: Ravi Subramanian ,  Uma Jha ,  Joel D. Medlock

Inventor： Ravi Subramanian ,  Uma Jha ,  Joel D. Medlock

IPC: G06F13/10 ,  H04B1/38

CPC classification number: H04B1/0003 ,  H04B1/707 ,  H04B2201/7071 ,  H04B2201/70711

Abstract: A wireless spread spectrum communication platform for processing a communication signal is disclosed herein. The wireless communication platform includes a first computing element, a second computing element, and a reconfigurable interconnect. The first computing element is coupled to the second computing element via the reconfigurable interconnect. A design configuration of the first computing element is heterogeneous with respect to a design configuration of the second computing element. The reconfigurable interconnect has an uncommitted architecture, thereby allowing it to be configured by an outside source to couple portions of the first reconfigurable interconnect with portions of the second reconfigurable interconnect in a variety of combinations. The first computing element, the second computing element, and the reconfigurable interconnect operable to perform discrete functions suitable for processing of the communication signal.

Abstract translation: 本文公开了一种用于处理通信信号的无线扩频通信平台。 无线通信平台包括第一计算元件，第二计算元件和可重构互连。 第一计算元件经由可重构互连耦合到第二计算元件。 关于第二计算元件的设计配置，第一计算元件的设计配置是异构的。 可重配置互连具有未提交的架构，从而允许其由外部源配置以将第一可重配置互连的部分以各种组合耦合第二可重配置互连的部分。 第一计算元件，第二计算元件和可重构互连可操作以执行适于处理通信信号的离散功能。

公开(公告)号：US07236500B1

公开(公告)日：2007-06-26

申请号：US09742811

申请日：2000-12-19

Applicant: Craig B. Greenberg

Inventor： Craig B. Greenberg

IPC: H04J3/16

CPC classification number: H04B1/406 ,  H04B1/0003 ,  H04B2201/7071

Abstract: A system and method of demodulating antenna data containing multiple signals in multiple protocols for multiple users is disclosed. The method comprises buffering the antenna data with an input buffer of the demodulation system. Next, the protocol to be demodulated is determined and a dynamically reconfigurable datapath for the system is configured for that protocol. The antenna data containing multiple signals is read from the input buffer, demodulated by the datapath, and stored in an output buffer. The next protocol to be demodulated is determined and the datapath is configured appropriately. Again, the signal for each of the users is demodulated by the datapath and the output data is stored in the output buffer. This process continues until all of the signals for all of the users have been demodulated for all of the prescribed protocols.

Abstract translation: 公开了一种用于解调多个用户的多个协议中包含多个信号的天线数据的系统和方法。 该方法包括用解调系统的输入缓冲器缓冲天线数据。 接下来，确定要解调的协议，并为该协议配置系统的动态可重配置数据路径。 从输入缓冲器读取包含多个信号的天线数据，由数据路径解调，并存储在输出缓冲器中。 确定要解调的下一个协议，并适当配置数据路径。 再次，每个用户的信号由数据路径解调，输出数据存储在输出缓冲器中。 该过程一直持续到所有用户的所有信号已被解调为所有规定的协议。

公开(公告)号：US20070127556A1

公开(公告)日：2007-06-07

申请号：US10588149

申请日：2004-02-03

Applicant: Takaaki Sato

Inventor： Takaaki Sato

IPC: H04B1/00

CPC classification number: H04B1/7117 ,  H04B2201/70703 ,  H04B2201/7071

Abstract: A RAKE reception device capable of allocating an appropriate number of fingers to a channel. In this device, a selection control section (301) sets a finger (304) allocated to the channel from the channel communication state and a control signal based on this setting is output to a synchronization processing section (302) and to a selection switch (303). According to the control signal, the synchronization processing section (302) detects a path and a spread code phase in a reception signal and allocates the detected path to the finger (304) which has been set. The finger (304) which has been set de-spreads the signal of the path allocated and performs coherent detection. According to the control signal, the selection switch (303) switches the connection between the finger (304) and a maximum ratio combining section (307) so that the output from the finger (304) is output to the maximum ratio combining section (307).

Abstract translation: 一种RAKE接收装置，其能够将适当数量的手指分配给频道。 在该装置中，选择控制部（301）从通道通信状态设定分配给通道的手指（304），并且基于该设定的控制信号被输出到同步处理部（302）和选择开关 303）。 根据控制信号，同步处理部（302）检测接收信号中的路径和扩展码相位，并将检测到的路径分配给已设定的手指（304）。 所设置的手指（304）对所分配的路径的信号进行解扩，并执行相干检测。 根据控制信号，选择开关（303）切换手指（304）和最大比合成部（307）之间的连接，使得来自手指（304）的输出被输出到最大比合成部（307 ）。

公开(公告)号：US07200133B2

公开(公告)日：2007-04-03

申请号：US10285435

申请日：2002-11-01

Applicant: Che-Li Lin

Inventor： Che-Li Lin

IPC: H04B7/216

CPC classification number: H04B1/7085 ,  H04B1/7117 ,  H04B2201/7071

Abstract: A rake finger receiver and control method therefor, for use in a wireless spread communication system. The rake finger receiver includes a multiplexer, a searcher, a first switch fabric, a rake fingers and tracking pool, a second switch fabric, a combiner, a decoder, a channel estimator, and a rake finger controller. One searcher is used to serve multiple antennas of a base station so as to reduce the system complexity. The number of the rake fingers assigned for processing multipath components associated with a radio link is determined dynamically. Thus, the resource is utilized efficiently.

Abstract translation: 一种用于无线传播通信系统的耙指接收机及其控制方法。 耙指接收器包括多路复用器，搜索器，第一交换结构，耙指和跟踪池，第二交换结构，组合器，解码器，信道估计器和耙指控制器。 一个搜索器用于服务于基站的多个天线，以便降低系统的复杂度。 分配用于处理与无线电链路相关联的多路径分量的耙指的数量被动态地确定。 因此，资源被有效利用。