Frequency domain equalization
    62.
    发明授权
    Frequency domain equalization 有权
    频域均衡

    公开(公告)号:US07388907B2

    公开(公告)日:2008-06-17

    申请号:US11184680

    申请日:2005-07-19

    IPC分类号: H04B1/00 H03H7/30

    摘要: A radio receiver 102 is provided. The radio receiver 102 comprises one or more data Fast Fourier Transformers, each data Fast Fourier Transformer operable to perform a Fast Fourier Transform on an input data block, one or more impulse response Fast Fourier Transformers, each impulse response Fast Fourier Transformer operable to perform a Fast Fourier Transform on a channel impulse response, one or more multiplier components operable to multiply a term of the output of one of the data Fast Fourier Transformers by a term of the output of one of the impulse response Fast Fourier Transformers, and one or more Inverse Fast Fourier Transformers, each Inverse Fast Fourier Transformer operable to perform an Inverse Fast Fourier Transform based on an output of one or more of the multipliers.

    摘要翻译: 提供无线电接收机102。 无线电接收器102包括一个或多个数据快速傅立叶变换器,每个数据快速傅立叶变换器可操作以对输入数据块执行快速傅里叶变换,一个或多个脉冲响应快速傅立叶变换器,每个脉冲响应快速傅立叶变换器可操作以执行 对信道脉冲响应的快速傅立叶变换,一个或多个乘法器组件,可操作以将数据快速傅里叶变换器之一的输出的项乘以脉冲响应快速傅立叶变换器之一的输出项,以及一个或多个 快速傅里叶逆变换器,每个快速傅里叶逆变换器可操作以基于一个或多个乘法器的输出执行快速傅立叶逆变换。

    Downlink Synchronization Channel And Methods For Cellular Systems
    63.
    发明申请
    Downlink Synchronization Channel And Methods For Cellular Systems 有权
    下行同步信道和蜂窝系统的方法

    公开(公告)号:US20070248068A1

    公开(公告)日:2007-10-25

    申请号:US11737554

    申请日:2007-04-19

    IPC分类号: H04Q7/24

    CPC分类号: H04W56/0005 H04J11/0069

    摘要: The present invention provides a method of operating a base station transmitter. The method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. In one embodiment, the primary portion explicitly indicates a partial cell identification information and the remaining cell identification information is carried in the secondary portion. In another embodiment, the plurality of different primary signals are simply used to avoid the channel mismatch effect. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the timing acquisition is performed in conjunction with the primary synchronization sequence index detection via the primary portion. In addition, the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.

    摘要翻译: 本发明提供一种操作基站发射机的方法。 该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号,其中主要部分采用分配给相邻传输小区的多个不同主要信号中的相应一个信号。 该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。 在一个实施例中,主要部分明确地指示部分小区标识信息,并且剩余小区标识信息在次要部分中携带。 在另一个实施例中,简单地使用多个不同的主信号来避免信道失配效应。 本发明还提供了一种操作用户设备的方法。 该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号,其中定时获取结合经由主要部分的主同步序列索引检测来执行。 此外,次级部分提供细胞特异性参数并识别和提取次级部分。

    PRE-CODER SELECTION BASED ON RESOURCE BLOCK GROUPING
    64.
    发明申请
    PRE-CODER SELECTION BASED ON RESOURCE BLOCK GROUPING 审中-公开
    基于资源块分组的预编码选择

    公开(公告)号:US20070217540A1

    公开(公告)日:2007-09-20

    申请号:US11688756

    申请日:2007-03-20

    IPC分类号: H04L1/02

    摘要: The present invention provides a receiver. In one embodiment, the receiver includes a receive portion employing transmission signals from a transmitter having multiple antennas and capable of providing channel estimates. The receiver also includes a feedback generator portion configured to provide to the transmitter a pre-coder selection for data transmission that is based on the channel estimates, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks. The present invention also provides a transmitter having multiple antennas. In one embodiment, the transmitter includes a transmit portion coupled to the multiple antennas and capable of applying pre-coding to a data transmission for a receiver. The transmitter also includes a feedback decoding portion configured to decode a pre-coder selection for the data transmission that is fed back from the receiver, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks.

    摘要翻译: 本发明提供一种接收机。 在一个实施例中,接收机包括采用来自具有多个天线的发射机的传输信号并且能够提供信道估计的接收部分。 接收机还包括反馈发生器部分,其被配置为向发射机提供基于信道估计的数据传输的预编码器选择,其中预编码器选择对应于频域资源块的分组。 本发明还提供一种具有多个天线的发射机。 在一个实施例中,发射机包括耦合到多个天线的发射部分,并且能够将预编码应用于接收机的数据传输。 发射机还包括反馈解码部分,其被配置为解码从接收机反馈的数据传输的预编码器选择,其中预编码器选择对应于频域资源块的分组。

    Random access preamble coding for initiation of wireless mobile communications sessions
    66.
    发明授权
    Random access preamble coding for initiation of wireless mobile communications sessions 有权
    用于启动无线移动通信会话的随机接入前导码编码

    公开(公告)号:US07173919B1

    公开(公告)日:2007-02-06

    申请号:US09591888

    申请日:2000-06-09

    申请人: Anand G. Dabak

    发明人: Anand G. Dabak

    IPC分类号: H04B7/216

    摘要: A method of operating a wireless communications unit (UE) to request a connection with a base station (10) is disclosed. The wireless unit (UE) receives a signal from the base station (10) indicating at least one time slot within which a preamble may be transmitted by the wireless communications unit (UE). The wireless unit (UE) selects one of a plurality of orthogonal codes (hi) for the preamble and generates a spread code using the selected orthogonal code. The spread code (70) is arranged as a symbol (hi) of the selected code, repeated a selected number of repetitions. The wireless unit (UE) transmits the preamble signal corresponding to the spread code to the base station (10).

    摘要翻译: 公开了一种操作无线通信单元(UE)以请求与基站(10)的连接的方法。 无线单元(UE)从基站(10)接收指示无线通信单元(UE)可以在其内发送前导码的至少一个时隙的信号。 无线单元(UE)为前导码选择多个正交码中的一个,并使用所选择的正交码产生扩展码。 扩展码(70)被布置为所选码的符号(h i i i),重复所选择的重复次数。 无线单元(UE)向基站(10)发送对应于扩展码的前同步码信号。

    Wireless communications system with secondary synchronization code based on values in primary synchronization code
    67.
    发明授权
    Wireless communications system with secondary synchronization code based on values in primary synchronization code 有权
    基于主同步码中的值的无线通信系统具有辅同步码

    公开(公告)号:US07103085B1

    公开(公告)日:2006-09-05

    申请号:US09595561

    申请日:2000-06-16

    IPC分类号: H04B1/38

    摘要: A wireless communication system. The system comprises transmitter circuitry (BST1), the transmitter circuitry comprising encoder circuitry (50) for transmitting a plurality of frames (FR). Each of the plurality of frames comprises a primary synchronization code (PCS) and a secondary synchronization code (SSC). The encoder circuitry comprises of circuitry (501) for providing the primary synchronization code in response to a first sequence (32). The encoder circuitry further comprises circuitry (502) for providing the secondary synchronization code in response to a second sequence (54) and a third sequence (56). The second sequence is selected from a plurality of sequences. Each of the plurality of sequences is orthogonal with respect to all other sequences in the plurality of sequences. The third sequence comprises a subset of bits from the first sequence.

    摘要翻译: 无线通信系统。 该系统包括发射机电路(BST1),发射机电路包括用于传输多个帧(FR)的编码器电路(50)。 多个帧中的每一个包括主同步码(PCS)和辅同步码(SSC)。 编码器电路包括用于响应于第一序列(32)提供主同步码的电路(50 1)。 编码器电路还包括用于响应于第二序列(54)和第三序列(56)提供辅助同步码的电路(50)。 第二序列从多个序列中选择。 多个序列中的每一个相对于多个序列中的所有其他序列是正交的。 第三序列包括来自第一序列的比特的子集。

    Reduced complexity primary and secondary synchronization codes with good correlation properties for WCDMA
    68.
    发明授权
    Reduced complexity primary and secondary synchronization codes with good correlation properties for WCDMA 有权
    降低复杂度的主和次同步码,具有良好的WCDMA相关特性

    公开(公告)号:US07039036B1

    公开(公告)日:2006-05-02

    申请号:US09316193

    申请日:1999-05-21

    IPC分类号: H04B7/216

    CPC分类号: H04B1/707 H04J13/10

    摘要: A circuit for processing binary sequences is designed with a plurality of stages (530–534) coupled to provide plural signal paths (526,528). Each stage includes respective signal paths (550,562) for a first Ra1(k) and a second Rb1(k) data sequence. Each stage further includes a respective delay circuit (502) having a different delay from said respective delay circuit of each other stage (504,506) of the plurality of stages. A stage having a greatest delay (502) precedes other stages (504,506) in the plurality of stages of at least one of the plural signal paths.

    摘要翻译: 用于处理二进制序列的电路被设计成具有耦合以提供多个信号路径(526,528)的多个级(530-534)。 每个级包括用于第一个R a 1(k)和第二个R b个SUP(1)的相应信号路径(550,562) SUP(k)数据序列。 每个级还包括相应的延迟电路(502),其具有与多个级的每个其它级(504,506)的所述相应延迟电路不同的延迟。 具有最大延迟(502)的级在多个信号路径中的至少一个的多个级中的其他级(504,506)之前。

    Power control with space time transmit diversity
    69.
    发明授权
    Power control with space time transmit diversity 有权
    功率控制与时空发射分集

    公开(公告)号:US06977910B1

    公开(公告)日:2005-12-20

    申请号:US09224401

    申请日:1998-12-31

    摘要: A circuit is designed with a measurement circuit (432). The measurement circuit is coupled to receive a first input signal (903) from a first antenna (128) of a transmitter and coupled to receive a second input signal (913) from a second antenna (130) of the transmitter. Each of the first and second signals is transmitted at a first time. The measurement circuit produces an output signal corresponding to a magnitude of the first and second signals. A control circuit (430) is coupled to receive the output signal and a reference signal. The control circuit is arranged to produce a control signal at a second time in response to a comparison of the output signal and the reference signal.

    摘要翻译: 电路设计有测量电路(432)。 测量电路被耦合以从发射机的第一天线(128)接收第一输入信号(903),并被耦合以从发射机的第二天线(130)接收第二输入信号(913)。 第一和第二信号中的每一个在第一时间被发送。 测量电路产生对应于第一和第二信号的幅度的输出信号。 控制电路(430)被耦合以接收输出信号和参考信号。 控制电路被布置成响应于输出信号和参考信号的比较而在第二时间产生控制信号。

    Cell selection with STTD and SSDT
    70.
    发明授权
    Cell selection with STTD and SSDT 有权
    细胞选择与STTD和SSDT

    公开(公告)号:US06862275B1

    公开(公告)日:2005-03-01

    申请号:US09514451

    申请日:2000-02-25

    申请人: Anand G. Dabak

    发明人: Anand G. Dabak

    摘要: A method of operating a communication circuit comprises the steps of receiving a plurality of signals (508-509, 514-516) from a plurality of remote transmitters (502-506) and determining which of the plurality of remote transmitters use transmit diversity. A signal strength of each respective signal of the plurality of signals is calculated. One of the remote transmitters is selected in response to the steps of determining and calculating.

    摘要翻译: 一种操作通信电路的方法包括以下步骤:从多个远程发射机(502-506)接收多个信号(508-509,514-516),并确定多个远程发射机中的哪一个使用发射分集。 计算多个信号的各个信号的信号强度。 响应于确定和计算的步骤来选择远程发射机之一。