MIMO Hybrid-ARQ using basis hopping
    21.
    发明授权
    MIMO Hybrid-ARQ using basis hopping 有权
    MIMO混合ARQ使用基跳频

    公开(公告)号:US07698616B2

    公开(公告)日:2010-04-13

    申请号:US12244665

    申请日:2008-10-02

    IPC分类号: G08C25/02 H04L1/08 H03M13/00

    摘要: A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.

    摘要翻译: 为多输入多输出(MIMO)系统提供混合自动重传请求(H-ARQ)技术。 该技术在重发时改变基础(V),这有助于减少重传时的错误概率。 该基础跳频技术提供了改进的性能增益,而不会显着提高设计复杂度。 在一个实施例中,通信设备(100)包括用于响应于由通信设备的发射机部分发送的信息而接收确认(ACK)或非确认(NACK)信号的接收机部分(114)。 如果接收到NACK,则从存储在基本设置单元(110)中的一组基础中选择新的基础。 所选择的新基准然后由线性变换单元(106)在信息的重传中使用。

    Frequency domain equalization
    22.
    发明申请
    Frequency domain equalization 有权
    频域均衡

    公开(公告)号:US20060029144A1

    公开(公告)日:2006-02-09

    申请号:US11184680

    申请日:2005-07-19

    IPC分类号: H04L1/02 H04B1/10

    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。

    Satellite positioning system receiver utilizing time-aiding information from an independent source
    23.
    发明申请
    Satellite positioning system receiver utilizing time-aiding information from an independent source 审中-公开
    卫星定位系统接收机利用来自独立源的时间辅助信息

    公开(公告)号:US20050202829A1

    公开(公告)日:2005-09-15

    申请号:US11026436

    申请日:2004-12-30

    IPC分类号: G01S19/09 G01S19/46 H04B7/185

    CPC分类号: G01S19/256

    摘要: An electronic device (10). The device has means (222) for receiving SPS information from an SPS system (40). The device also comprises means (223) for receiving broadcast timing information from a source (50) other than the SPS system. The device also comprises means for determining a location fix of the electronic device in response to the SPS information and the broadcast timing information.

    摘要翻译: 电子设备(10)。 该装置具有用于从SPS系统(40)接收SPS信息的装置(22> 2N)。 该设备还包括用于从除SPS系统之外的源(50)接收广播定时信息的装置(22,33)。 该设备还包括用于响应于SPS信息和广播定时信息来确定电子设备的定位的装置。

    Frequency-domain subchannel transmit antenna selection and power pouring for multi-antenna transmission
    24.
    发明申请
    Frequency-domain subchannel transmit antenna selection and power pouring for multi-antenna transmission 有权
    用于多天线传输的频域子信道发射天线选择和电力倾倒

    公开(公告)号:US20050113041A1

    公开(公告)日:2005-05-26

    申请号:US10723215

    申请日:2003-11-26

    IPC分类号: H04B7/005 H04B1/02

    CPC分类号: H04W52/42

    摘要: A system comprises a wireless device that communicates across a spectrum having a plurality of sub-channels. The wireless device comprises a plurality of antennas through which the wireless device communicates with another wireless device, wherein each antenna communicates with the other wireless device via an associated communication pathway. The wireless device further comprises sub-channel power analysis logic coupled to the antennas and adapted to determine which communication pathway has the highest communication quality on a sub-channel by sub-channel basis. The wireless device still further comprises diversity selection logic coupled to the sub-channel power analysis logic and adapted to determine a weighting vector for an associated antenna based on the communication quality, wherein the weighting vector specifies a relative transmission power for each sub-channel for the associated antenna.

    摘要翻译: 一种系统包括在具有多个子信道的频谱上进行通信的无线设备。 无线设备包括多个天线,无线设备通过多个天线与另一无线设备通信,其中每个天线经由相关联的通信路径与另一无线设备进行通信。 无线设备还包括耦合到天线的子信道功率分析逻辑,并且适于通过子信道来确定子信道上哪个通信路径具有最高通信质量。 无线设备还包括耦合到子信道功率分析逻辑的分集选择逻辑,并且适于基于通信质量来确定相关天线的加权矢量,其中加权向量规定每个子信道的相对发射功率,用于 相关天线。

    Multipath equalization for MIMO multiuser systems
    25.
    发明授权
    Multipath equalization for MIMO multiuser systems 有权
    MIMO多用户系统的多路径均衡

    公开(公告)号:US07933342B2

    公开(公告)日:2011-04-26

    申请号:US10173282

    申请日:2002-06-17

    IPC分类号: H04K1/10 H04L27/28

    摘要: Interference rejection (85) can be applied to a wireless communication signal with reduced computational complexity by producing from a sample vector (y) a plurality of vectors (w) that are smaller than the sample vector. The interference rejection operation can then be applied to each of the smaller vectors individually to decide communication symbols represented by the sample vector.

    摘要翻译: 通过从样本矢量(y)产生小于样本矢量的多个矢量(w),干扰抑制(85)可以应用于具有降低的计算复杂度的无线通信信号。 然后可以将干扰抑制操作单独地应用于每个较小的矢量,以决定由样本矢量表示的通信符号。

    Code Division Multiple Access Wireless System With Closed Loop Mode Using Ninety Degree Phase Rotation and Beamformer Verification
    26.
    发明申请
    Code Division Multiple Access Wireless System With Closed Loop Mode Using Ninety Degree Phase Rotation and Beamformer Verification 有权
    使用九十度相位旋转和波束成形器验证的闭环模式的码分多址无线系统

    公开(公告)号:US20070165699A1

    公开(公告)日:2007-07-19

    申请号:US11681088

    申请日:2007-03-01

    IPC分类号: H04B1/00

    摘要: A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (a2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.

    摘要翻译: 一种无线通信系统(10)。 该系统包括用户站(12)。 用户站包括解扩电路(22),用于接收和解扩从至少第一发射天线(A 12 1 1)和第二发射天线(A 12&lt; 2&gt; 1& / SUB>)。 多个时隙中的每一个包括包括第一组导频符号的第一信道(DPCH)和包括第二组导频符号的第二信道(PCCPCH)。 用户站还包括电路(50),用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量(α1,n N),并且响应于第一组 导频符号在给定的时隙。 用户站还包括电路(50),用于测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量(α2,n N),并且响应于第一组 导频符号在给定的时隙。 用户站还包括用于响应于第一信道测量和第二信道测量而针对多个时隙中的每个给定时隙测量相位差值(phi <2> 2(n))的电路(52) 对于给定的时隙,并且响应于给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。

    Multimode detection
    28.
    发明申请
    Multimode detection 审中-公开
    多模式检测

    公开(公告)号:US20060018410A1

    公开(公告)日:2006-01-26

    申请号:US10899615

    申请日:2004-07-26

    IPC分类号: H03D1/00

    摘要: In a wireless MIMO system, a multimode detector selects detection mode by channel estimation: ill-conditioned channels trigger use of high performance detection, whereas well-behaved channels lead to low complexity detection. Detection modes typically include maximum likelihood, minimum mean squared error, zero forcing, and so forth.

    摘要翻译: 在无线MIMO系统中,多模式检测器通过信道估计选择检测模式:不良条件的信道触发使用高性能检测,而良好的信道导致检测低复杂度。 检测模式通常包括最大似然,最小均方误差,零强迫等。

    Satellite positioning system receiver utilizing broadcast doppler information
    29.
    发明申请
    Satellite positioning system receiver utilizing broadcast doppler information 有权
    卫星定位系统接收机利用广播多普勒信息

    公开(公告)号:US20050192032A1

    公开(公告)日:2005-09-01

    申请号:US11069595

    申请日:2005-02-28

    CPC分类号: G01S19/254

    摘要: A cellular communicating device (10). The device comprises means (221) for communicating bi-directional data to and from a cellular transceiver station along a bi-directional channel (30S). The device also comprises means (222) for receiving SPS information. The device also comprises means (223) for receiving broadcast Doppler information from a source other than the bi-directional channel and an SPS system. Lastly, the device also comprises means (24) for determining a location fix of the electronic device in response to the SPS information and the broadcast Doppler information.

    摘要翻译: 一种蜂窝通信设备(10)。 该设备包括用于沿双向通道(30S)向蜂窝收发器站传送双向数据和从蜂窝收发台传送双向数据的装置(22I 1)。 该装置还包括用于接收SPS信息的装置(22,2&gt; 2)。 该设备还包括用于从除双向通道之外的源和SPS系统接收广播多普勒信息的装置(22,33)。 最后,设备还包括用于响应于SPS信息和广播多普勒信息来确定电子设备的定位的装置(24)。

    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
    30.
    发明申请
    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification 有权
    码分多址无线系统采用闭环模式,采用九十度相位旋转和波束形成器验证

    公开(公告)号:US20050026566A1

    公开(公告)日:2005-02-03

    申请号:US10919470

    申请日:2004-08-16

    摘要: A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (α2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.

    摘要翻译: 一种无线通信系统(10)。 该系统包括用户站(12)。 用户站包括解扩电路(22),用于在发射站(14)处接收和解扩从至少第一发射天线(A121)和第二发射天线(A122)接收的多个时隙。 多个时隙中的每一个包括包括第一组导频符号的第一信道(DPCH)和包括第二组导频符号的第二信道(PCCPCH)。 用户站还包括用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量(α1,n)以及响应于给定时隙中的第一组导频符号的电路(50)。 用户站还包括电路(50),用于响应于给定时隙中的第一组导频符号,测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量(α2,n)。 用户站还包括电路(52),用于响应于给定时隙的第一信道测量和第二信道测量以及响应于第二信道测量而测量多个时隙中的每个给定时隙的相位差值(phi2(n)), 给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。