SHARED SOFT METRIC BUFFER FOR CARRIER AGGREGATION RECEIVERS
    1.
    发明申请
    SHARED SOFT METRIC BUFFER FOR CARRIER AGGREGATION RECEIVERS 有权
    用于承运人集体接收方的共享软权方向缓冲器

    公开(公告)号:US20120028592A1

    公开(公告)日:2012-02-02

    申请号:US13168978

    申请日:2011-06-26

    IPC分类号: H04W88/02 H04W88/08

    摘要: A method in a receiver includes receiving from a transmitter an aggregated-spectrum signal including at least first and second component carriers in respective spectral bands. Information related to processing one or more of the component carriers is buffered in at least one shared buffer, such that storage locations in the shared buffer are selectably assignable for storing at least first information related to the processing of the first component carrier and second information related to the processing of the second component carrier. The one or more of the component carriers are processed in the receiver using the information buffered in the shared buffer.

    摘要翻译: 接收机中的一种方法包括从发射机接收在相应光谱带中至少包括第一和第二分量载波的聚合频谱信号。 与处理一个或多个分量载波相关的信息被缓冲在至少一个共享缓冲器中,使得共享缓冲器中的存储位置可选择地分配用于存储与第一分量载波的处理有关的至少第一信息和第二信息相关 涉及第二分量载体的处理。 使用在共享缓冲器中缓冲的信息在接收机中处理一个或多个分量载波。

    Shared soft metric buffer for carrier aggregation receivers
    2.
    发明授权
    Shared soft metric buffer for carrier aggregation receivers 有权
    用于载波聚合接收机的共享软度量缓冲区

    公开(公告)号:US08526889B2

    公开(公告)日:2013-09-03

    申请号:US13168978

    申请日:2011-06-26

    IPC分类号: H04B1/06

    摘要: A method in a receiver includes receiving from a transmitter an aggregated-spectrum signal including at least first and second component carriers in respective spectral bands. Information related to processing one or more of the component carriers is buffered in at least one shared buffer, such that storage locations in the shared buffer are selectably assignable for storing at least first information related to the processing of the first component carrier and second information related to the processing of the second component carrier. The one or more of the component carriers are processed in the receiver using the information buffered in the shared buffer.

    摘要翻译: 接收机中的一种方法包括从发射机接收在各个频谱带中至少包括第一和第二分量载波的聚合频谱信号。 与处理一个或多个分量载波相关的信息被缓冲在至少一个共享缓冲器中,使得共享缓冲器中的存储位置可选择地分配用于存储与第一分量载波的处理有关的至少第一信息和第二信息相关 涉及第二分量载体的处理。 使用在共享缓冲器中缓冲的信息在接收机中处理一个或多个分量载波。

    Channel estimation with co-channel pilots suppression
    3.
    发明授权
    Channel estimation with co-channel pilots suppression 有权
    信道估计与同频道导频抑制

    公开(公告)号:US08300651B1

    公开(公告)日:2012-10-30

    申请号:US12360545

    申请日:2009-01-27

    IPC分类号: H04L12/28

    摘要: A method for a user equipment device includes receiving a reference signal from a desired transmitter and obtaining information about other, interfering transmitters whose signals are receivable by the user equipment. The information includes a reference signal sequence of reference signals transmitted by the other transmitters. The method also includes modeling interference caused by the reference signals of the other transmitters on the received reference signal when determining a channel estimate for a channel between the user equipment device and the desired transmitter.

    摘要翻译: 用于用户设备设备的方法包括从期望的发射机接收参考信号并且获得关于其信号可由用户设备接收的其它干扰发射机的信息。 信息包括由其他发射机发送的参考信号的参考信号序列。 当确定用户设备设备和期望的发射机之间的信道的信道估计时,该方法还包括对接收到的参考信号上的其他发射机的参考信号造成的干扰进行建模。

    Apparatus and method of adaptive filter
    4.
    发明授权
    Apparatus and method of adaptive filter 失效
    自适应滤波器的装置和方法

    公开(公告)号:US07477686B2

    公开(公告)日:2009-01-13

    申请号:US10930857

    申请日:2004-09-01

    IPC分类号: H03H7/30

    CPC分类号: H04L27/368

    摘要: Briefly, according to some embodiments of the invention a method and apparatus to generate a filter are provided. The apparatus may include a phase modulation unit to vary a phase component of a signal, a measurement unit to measure a parameter of the phase modulation unit and a filter generator to generate a filter based on the parameter. In some embodiments of the invention, the filter is adapted to provide a compensated signal to the phase modulation unit to compensate for deviation of the parameter.

    摘要翻译: 简而言之,根据本发明的一些实施例,提供了一种生成滤波器的方法和装置。 该装置可以包括用于改变信号的相位分量的相位调制单元,用于测量相位调制单元的参数的测量单元和基于该参数生成滤波器的滤波器发生器。 在本发明的一些实施例中,滤波器适于向相位调制单元提供补偿信号以补偿参数的偏差。

    Reduced complexity MMSE multiuser detection for a multirate CDMA link
    5.
    发明授权
    Reduced complexity MMSE multiuser detection for a multirate CDMA link 有权
    针对多速率CDMA链路降低复杂度MMSE多用户检测

    公开(公告)号:US07333466B2

    公开(公告)日:2008-02-19

    申请号:US10291189

    申请日:2002-11-08

    IPC分类号: H04B7/216

    CPC分类号: H04B1/7105 H04B2201/70703

    摘要: A system to decode a multirate CDMA signal. In one aspect the system includes a high rate detector to generate high rate outputs based upon decoding an input signal that includes high rate users and low rate users. The high rate outputs include actual high rate users and effective high rate users. A second stage applies a first linear transformation to the high rate outputs to generate second stage outputs. A third stage applies a second linear transformation to the second stage outputs to generate decoupled low rate user outputs and decoupled actual high rate user outputs.

    摘要翻译: 用于解码多速率CDMA信号的系统。 在一个方面,该系统包括高速率检测器,用于基于对包括高速率用户和低速率用户的输入信号进行解码来产生高速率输出。 高速率输出包括实际高速率用户和有效的高速率用户。 第二阶段对高速率输出应用第一线性变换以产生第二级输出。 第三阶段将第二线性变换应用于第二级输出以产生解耦的低速率用户输出和解耦的实际高速用户输出。

    Filter for a modulator and methods thereof
    6.
    发明申请
    Filter for a modulator and methods thereof 有权
    调制器滤波器及其方法

    公开(公告)号:US20050129142A1

    公开(公告)日:2005-06-16

    申请号:US10734117

    申请日:2003-12-15

    摘要: In some exemplary embodiments of the invention, a transfer function of a filter for a fractional-N sigma-delta modulator may be calculated to be optimized according to predefined optimization criteria. For example, the optimization criteria may include spectral cleanliness at the output of the modulator, or the mean squared error of the input to the filter and the input to a voltage controlled oscillator of the fractional-N phase locked loop (PLL). In some exemplary embodiments, the filter may be adjusted to compensate for variations and/or impairments in the analog fractional-N PLL. A non-exhaustive list of examples for the transfer function includes a finite impulse response and an infinite impulse response.

    摘要翻译: 在本发明的一些示例性实施例中,可以计算用于分数N个Σ-Δ调制器的滤波器的传递函数,以根据预定义的优化标准进行优化。 例如,优化标准可以包括在调制器的输出处的光谱清洁度,或者到滤波器的输入的平均误差以及分数N锁相环(PLL)的压控振荡器的输入。 在一些示例性实施例中,可以调整滤波器以补偿模拟分数N PLL中的变化和/或损伤。 传递函数示例的非穷举列表包括有限脉冲响应和无限脉冲响应。

    Metric correction for multi user detection, for long codes DS-CDMA
    7.
    发明授权
    Metric correction for multi user detection, for long codes DS-CDMA 有权
    用于多用户检测的度量校正,用于长码DS-CDMA

    公开(公告)号:US07450631B2

    公开(公告)日:2008-11-11

    申请号:US10053490

    申请日:2001-10-26

    IPC分类号: H04B1/69 H04B1/707 H04B1/713

    摘要: A receiver in a wireless communication system utilizes a metric to minimize the error probability in transmitted information. The receiver may use a detector utilizing multiuser detection or rake detection. The output symbols of the detector are examined and a metric is obtained related to the noise and interference that may have distorted the transmission of the symbol. This metric is supplied to a channel decoder along with the symbol to improve decoding.

    摘要翻译: 无线通信系统中的接收机利用度量来最小化发送信息中的错误概率。 接收机可以使用利用多用户检测或耙检测的检测器。 检查检测器的输出符号,并且获得与可能使符号的传输失真的噪声和干扰相关的度量。 该度量与符号一起提供给信道解码器以改善解码。

    Filter for a modulator and methods thereof
    8.
    发明授权
    Filter for a modulator and methods thereof 有权
    调制器滤波器及其方法

    公开(公告)号:US07912145B2

    公开(公告)日:2011-03-22

    申请号:US10734117

    申请日:2003-12-15

    IPC分类号: H04L27/00

    摘要: In some exemplary embodiments of the invention, a transfer function of a filter for a fractional-N sigma-delta modulator may be calculated to be optimized according to predefined optimization criteria. For example, the optimization criteria may include spectral cleanliness at the output of the modulator, or the mean squared error of the input to the filter and the input to a voltage controlled oscillator of the fractional-N phase locked loop (PLL). In some exemplary embodiments, the filter may be adjusted to compensate for variations and/or impairments in the analog fractional-N PLL. A non-exhaustive list of examples for the transfer function includes a finite impulse response and an infinite impulse response.

    摘要翻译: 在本发明的一些示例性实施例中,可以计算用于分数N个Σ-Δ调制器的滤波器的传递函数,以根据预定义的优化标准进行优化。 例如,优化标准可以包括在调制器的输出处的光谱清洁度,或者到滤波器的输入的平均误差以及分数N锁相环(PLL)的压控振荡器的输入。 在一些示例性实施例中,可以调整滤波器以补偿模拟分数N PLL中的变化和/或损伤。 传递函数示例的非穷举列表包括有限脉冲响应和无限脉冲响应。

    Low complexity multiuser detector

    公开(公告)号:US07042926B2

    公开(公告)日:2006-05-09

    申请号:US09990035

    申请日:2001-11-21

    IPC分类号: H04B1/707

    CPC分类号: H04B1/71055 H04L25/0232

    摘要: A multi-user detector for use in a CDMA receiver system includes a channel tap interpolator to generate interpolated channel taps for users of interest. The interpolated channel taps occur at integer multiples of a chip period from a sampling reference point. The channel tap interpolation allows detection processing to proceed in the chip domain, rather than in the sample domain, thus reducing the complexity of the multi-user solution significantly. In at least one approach, a number of low dimensionality “virtual” users are defined based on the recursive property of the spreading sequences. Solutions may then be developed for the virtual users using conventional detection (e.g., MMSE) techniques.

    Apparatus and method of adaptive filter

    公开(公告)号:US20060045203A1

    公开(公告)日:2006-03-02

    申请号:US10930857

    申请日:2004-09-01

    IPC分类号: H04L27/20

    CPC分类号: H04L27/368

    摘要: Briefly, according to some embodiments of the invention a method and apparatus to generate a filter are provided. The apparatus may include a phase modulation unit to vary a phase component of a signal, a measurement unit to measure a parameter of the phase modulation unit and a filter generator to generate a filter based on the parameter. In some embodiments of the invention, the filter is adapted to provide a compensated signal to the phase modulation unit to compensate for deviation of the parameter.