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    Receiver and base station for producing phase-corrected channel signals
    71.
    发明申请
    Receiver and base station for producing phase-corrected channel signals 有权
    接收机和基站，用于产生相位校正的信道信号

    公开(公告)号：US20050254557A1

    公开(公告)日：2005-11-17

    申请号：US11189370

    申请日：2005-07-26

    申请人： Fatih Ozluturk ,  David Mesecher ,  Alexander Jacques

    发明人： Fatih Ozluturk ,  David Mesecher ,  Alexander Jacques

    IPC分类号： H04L27/02 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115

    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： A receiver and base station for producing phase-corrected channel signals. 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： 用于产生相位校正的信道信号的接收机和基站。 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。

    Digital receivers and receiving methods that scale for relative strengths of traffic and pilot channels during soft handoff
    72.
    发明授权
    Digital receivers and receiving methods that scale for relative strengths of traffic and pilot channels during soft handoff 有权
    数字接收机和接收方法，可在软切换期间扩展业务和导频信道的相对强度

    公开(公告)号：US06931050B1

    公开(公告)日：2005-08-16

    申请号：US09204734

    申请日：1998-12-03

    申请人： Gregory E. Bottomley

    发明人： Gregory E. Bottomley

    IPC分类号： H04B1/7115 ,  H04B7/005 ,  H04B7/02 ,  H04B7/26 ,  H04W52/40 ,  H04B1/69

    CPC分类号： H04W52/40 ,  H04B1/7115 ,  H04B7/022 ,  H04B7/2628

    摘要： Digital receivers and receiving methods scale for relative strengths of traffic and pilot channels during soft handoff. In particular, spread spectrum signals are processed from traffic channels and pilot channels by receiving data samples from traffic channels and pilot channels. Detection statistics are obtained from the received data samples that correspond to information symbols while accounting for the relative strengths of the traffic channels and the pilot channels. The detection statistics are preferably obtained by performing Rake combining while accounting for the relative strengths of the traffic channels and the pilot channels.

    摘要翻译： 在软切换过程中，数字接收机和接收方法可扩展业务和导频信道的相对强度。 特别地，通过从业务信道和导频信道接收数据样本，从业务信道和导频信道处理扩频信号。 从对应于信息符号的接收数据样本获得检测统计量，同时考虑业务信道和导频信道的相对强度。 检测统计优选通过在考虑业务信道和导频信道的相对强度的同时执行Rake组合来获得。

    Apparatus and method for M-ary demodulation in a digital communication system
    73.
    发明授权
    Apparatus and method for M-ary demodulation in a digital communication system 失效
    一种数字通信系统中M-ary解调的装置和方法

    公开(公告)号：US06925133B2

    公开(公告)日：2005-08-02

    申请号：US10038869

    申请日：2001-12-31

    申请人： Joseph Robert Cleveland

    发明人： Joseph Robert Cleveland

    IPC分类号： H04B1/707 ,  H04B1/7115 ,  H04J11/00 ,  H04L1/00 ,  H04L27/20 ,  H03D1/00 ,  H04L27/06

    CPC分类号： H04L1/0059 ,  H04B1/707 ,  H04B1/7115 ,  H04L1/0054 ,  H04L1/0071 ,  H04L27/2075

    摘要： A demodulator for demodulating a set of S possible orthogonal modulation codes received serially as binary data, wherein each of the orthogonal modulation codes comprises M binary bits representing an N-bit data symbol and wherein M=2N. The demodulator comprises: 1) a Logic 0 input detector for comparing each of the M binary bits of the serially received orthogonal modulation codes to a Logic 0 and outputting a +1 signal if a match occurs and outputting a −1 signal if a match does not occur; 2) a summation circuit comprising S accumulators; 3) a Logic 0 switch array comprising S switches, wherein a Kth one of the S switches in the Logic 0 switch array couples an output of the Logic 0 input detector to a first input of a Kth one of the S accumulators; 4) a storage array for storing the S orthogonal modulation codes; and 5) control circuitry for synchronously applying the M bits in a Kth one of the S orthogonal modulation codes in the storage array as a switch control signal to the Kth switch in the Logic 0 switch array so that each Logic 0 binary data in the Kth orthogonal modulation code closes the Kth switch in the Logic 0 switch array, thereby connecting the output signal of the Logic 0 input detector to the first input of the Kth accumulator.

    摘要翻译： 一种用于解调串行接收为二进制数据的一组S个可能正交调制码的解调器，其中每个正交调制码包括表示N位数据符号的M个二进制位，并且其中M = 2 N N。 解调器包括：1）逻辑0输入检测器，用于将串行接收的正交调制码的M个二进制位中的每一个与逻辑0进行比较，并且如果匹配发生则输出+1信号，如果匹配则输出-1信号 不发生; 2）包括S个累加器的求和电路; 3）包括S开关的逻辑0开关阵列，其中逻辑0开关阵列中的第K个开关阵列将逻辑0输入检测器的输出耦合到S个累加器中的第K个的第一输入; 4）用于存储S个正交调制码的存储阵列; 以及5）控制电路，用于将存储阵列中的S个正交调制码的第K个中的M位同步施加为逻辑0开关阵列中的第K个开关的开关控制信号，使得第K个中的每个逻辑0二进制数据 正交调制码关闭逻辑0开关阵列中的第K个开关，从而将逻辑0输入检测器的输出信号连接到第K个累加器的第一个输入。

    High performance wireless receiver with cluster multipath interference suppression circuit
    75.
    发明申请
    High performance wireless receiver with cluster multipath interference suppression circuit 失效
    具有集群多径干扰抑制电路的高性能无线接收机

    公开(公告)号：US20050063500A1

    公开(公告)日：2005-03-24

    申请号：US10889939

    申请日：2004-07-13

    申请人： Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

    发明人： Bin Li ,  Rui Yang ,  Alexander Reznik ,  Ariela Zeira

    IPC分类号： H04B1/7115 ,  H04B1/00 ,  H04L25/03 ,  H04Q20060101 ,  H04B1/10

    CPC分类号： H04B1/7113 ,  H04B1/7115 ,  H04L25/03038 ,  H04L25/03987 ,  H04L2025/03592

    摘要： A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a Cluster Multipath Interference Suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.

    摘要翻译： 一种通过处理由两个多径簇组成的脉冲信道响应来抑制簇间多径干扰的接收机，每个簇具有多个延迟的信号组。 在一个实施例中，接收机包括单个天线和并联连接的延迟单元，用于在输入到相应的滑动窗口均衡器之前将信号组对准。 均衡器的输出通过提供单个输出的组合器在芯片级组合。 在另一个实施例中，集群多路径干扰抑制（CMIS）电路并入接收机。 CMIS电路包括硬决策单元和多个信号再生单元以生成多路径簇的副本。 从延迟单元的相应输出中减去副本，并将结果输入到各个滑动窗均衡器。 在另一个实施例中，使用多个天线来接收和处理簇。

    RAKE receiver having MIXR function
    76.
    发明申请
    RAKE receiver having MIXR function 有权
    RAKE接收机具有MIXR功能

    公开(公告)号：US20050058183A1

    公开(公告)日：2005-03-17

    申请号：US10789226

    申请日：2004-02-26

    申请人： Daisuke Ogawa ,  Hideto Furukawa ,  Takashi Dateki ,  Masahiko Shimizu ,  Tsuyoshi Hasegawa

    发明人： Daisuke Ogawa ,  Hideto Furukawa ,  Takashi Dateki ,  Masahiko Shimizu ,  Tsuyoshi Hasegawa

    IPC分类号： H04B1/707 ,  H04B1/7115 ,  H04B7/08 ,  H04L1/00

    CPC分类号： H04B1/712 ,  H04B1/7117

    摘要： MIXR is implemented with a realistic amount of hardware even when the number of detected paths is large. From among path timings detected by a path searcher and MICTs generated based on the detected path timings, as many timings as there are fingers are selected by a timing selector and the selected timings are assigned to the fingers. When selecting the timings, the value of SNIR expected to be achieved by RAKE combining in a RAKE combiner, for example, is predicted by calculation from a received signal, and the path timing and MICT that maximize the SNIR are selected.

    摘要翻译： 即使检测到的路径数量大，MIXR也可以实现硬实际的硬件。 由路径搜索器检测到的路径定时和基于检测到的路径定时生成的MICT之间，定时选择器选择与手指一样多的定时，并将所选择的定时分配给手指。 当选择定时时，例如通过从接收信号的计算来预测通过RAKE组合器中的RAKE组合预期的SNIR的值被预测，并且选择使SNIR最大化的路径定时和MICT。

    Multipath and tracking error reduction method for spread-spectrum receivers
    77.
    发明授权
    Multipath and tracking error reduction method for spread-spectrum receivers 失效
    用于扩频接收机的多路径和跟踪误差降低方法

    公开(公告)号：US06868110B2

    公开(公告)日：2005-03-15

    申请号：US09728949

    申请日：2000-12-01

    申请人： Robert Eric Phelts ,  Per Enge

    发明人： Robert Eric Phelts ,  Per Enge

    IPC分类号： G01S1/00 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/711 ,  H04B1/7115 ,  H04L7/10 ,  H04B1/713

    CPC分类号： H04B1/7085 ,  G01S19/22 ,  G01S19/30 ,  H04B1/711 ,  H04B1/7115

    摘要： A multipath mitigation method consists of locating a multipath-invariant (MPI) point of an ideal autocorrelation function and measuring the distance between the MPI point and DLL. The same MPI point is located in a received correlation function, and the distance between the point and the DLL, now affected by multipath, is measured. The difference between the ideal distance and the actual distance is the code tracking error resulting from multipath. The error is subtracted from the computed pseudorange or used to control the DLL. The method can be used to reduce the effects of all types of tracking error sources, such as signal transmission failure or code noise.

    摘要翻译： 多路径缓解方法包括定位理想自相关函数的多径不变（MPI）点，并测量MPI点和DLL之间的距离。 相同的MPI点位于接收到的相关函数中，并且测量点和现在受多径影响的DLL之间的距离。 理想距离和实际距离之间的差异是由多径产生的代码跟踪误差。 从计算的伪距中减去误差或用于控制DLL。 该方法可用于减少所有类型的跟踪误差源的影响，如信号传输失败或代码噪声。

    Radio communication system and base station and mobile terminal to be employed therein
    78.
    发明授权
    Radio communication system and base station and mobile terminal to be employed therein 失效
    无线电通信系统和基站以及其中使用的移动终端

    公开(公告)号：US06859487B1

    公开(公告)日：2005-02-22

    申请号：US09514706

    申请日：2000-02-28

    申请人： Minoru Imura

    发明人： Minoru Imura

    IPC分类号： H04J13/00 ,  H04B1/7115 ,  H04B7/02 ,  H04B7/06 ,  H04L1/02 ,  H04W76/02 ,  H04W88/00 ,  H04B1/69

    CPC分类号： H04B7/06

    摘要： A radio communication system is capable of realizing a space diversity with single channel of an antenna and a receiver in a mobile communication equipment or by assigning one spread code. The radio communication system includes a base station and a mobile station. The base station effects spread spectrum of a transmission signal for outputting a spread signal, delays the spread signal for a predetermined delay period for outputting a delayed signal and transmits a signal derived by adding the delayed signal and the spread signal.

    摘要翻译： 无线电通信系统能够通过移动通信设备中的天线和接收机的单个信道实现空间分集，或通过分配一个扩展码。 无线电通信系统包括基站和移动台。 基站影响用于输出扩展信号的发送信号的扩展频谱，将扩展信号延迟预定的延迟时间，以输出延迟的信号，并发送通过将延迟信号和扩展信号相加导出的信号。

    Coherent signal processing for CDMA communication system
    79.
    发明授权
    Coherent signal processing for CDMA communication system 有权
    CDMA通信系统的相干信号处理

    公开(公告)号：US6148042A

    公开(公告)日：2000-11-14

    申请号：US287550

    申请日：1999-04-05

    申请人： Ephraim Zehavi ,  Serge Willenegger ,  Joseph P. Odenwalder

    发明人： Ephraim Zehavi ,  Serge Willenegger ,  Joseph P. Odenwalder

    IPC分类号： H04B1/709 ,  H04B1/7115 ,  H04B7/26 ,  H03D1/00

    CPC分类号： H04B1/7115 ,  H04B1/709 ,  H04B2201/70703

    摘要： A method and apparatus for variable rate communication incorporating coherent signal processing and combining is described. Within the receive system, vectors of in-phase and quadrature-phase Walsh correlator output values are generated for each Rake finger over each Walsh symbol period. In-phase and quadrature-phase reference values are generated for each of the Rake fingers by combining the in-phase and quadrature-phase correlator outputs of the most likely Walsh symbols over a series of Walsh symbol periods. The output energies are calculated as the sum of squared in-phase and quadrature-phase values. The vectors of in-phase and quadrature-phases values are then projected on the in-phase and quadrature-phase reference values and weighted by the reference amplitude. The reference amplitude is the square root of the sum of squared in-phase and quadrature-phase values. The vectors of projected and weighted values are summed via coherently combining, and the corresponding values from the other Rake fingers used to obtain a resultant vector of coherently demodulated Walsh correlator outputs.

    摘要翻译： 描述了包括相干信号处理和组合的可变速率通信的方法和装置。 在接收系统内，在每个沃尔什符号周期上为每个耙指生成同相和正交相位沃尔什相关器输出值的矢量。 通过在一系列沃尔什符号周期组合最可能的沃尔什符号的同相和正交相位相关器输出，为每个耙指产生同相和正交相位参考值。 输出能量被计算为平方相位和正交相位值之和。 然后将同相和正交相位值的矢量投影在同相和正交相位参考值上，并用参考振幅进行加权。 参考幅度是平方相位和正交相位值之和的平方根。 投影和加权值的向量通过相干组合相加，并且来自其他Rake指针的相应值用于获得相干解调的沃尔什相关器输出的合成矢量。

    Receiver for pilot-aided code-division multiple access
    80.
    发明授权
    Receiver for pilot-aided code-division multiple access 失效
    接收机用于导频辅助码分多址

    公开(公告)号：US6141334A

    公开(公告)日：2000-10-31

    申请号：US980321

    申请日：1997-11-28

    申请人： Michael Joseph Flanagan ,  Klaus Ingemann Pedersen

    发明人： Michael Joseph Flanagan ,  Klaus Ingemann Pedersen

    IPC分类号： H04B1/7115 ,  H04B7/216 ,  H04B1/69

    CPC分类号： H04B1/7115

    摘要： A pilot-aided rake receiver suitable for CDMA wireless telecommunications is disclosed. Some rake receivers in accordance with the present invention require fewer computational resources to be consumed by the conjugate pilot estimate multipliers than some pilot-aided rake receivers in the prior art. One embodiment of the present invention comprises: N rake receiver fmgers, wherein each of the N rake receiver fingers outputs an information-bearing signal, I.sub.i (n), and a conjugate pilot estimate, P.sub.i (n); N multipliers; and an N.times.N switch interposed between the N rake receivers and the N multipliers for routing the information-bearing signal, I.sub.i (n), and the conjugate pilot estimate, P.sub.i (n), from any of the N rake receiver fingers to any of the N multipliers. In some embodiments of the present invention, the N multipliers are pooled and shared by the resources (e.g., rake receiver fingers, coherent combiners, etc.) associated with a plurality of users.

    摘要翻译： 公开了适用于CDMA无线电信的导频辅助耙式接收机。 根据本发明的一些耙式接收机比现有技术中的一些导频辅助耙式接收机需要较少的共轭导频估计乘法器消耗的计算资源。 本发明的一个实施例包括：N个耙式接收机，其中N个耙式接收机手指中的每一个输出信息承载信号Ii（n）和共轭导频估计Pi（n）; N个乘数 以及插入在N个耙式接收机和N个乘法器之间的NxN开关，用于将信息承载信号Ii（n）和共轭导频估计Pi（n）从任何N个耙式接收器手指路由到任何 N个乘数。 在本发明的一些实施例中，N个乘法器由与多个用户相关联的资源（例如，耙式接收器手指，相干组合器等）合并和共享。