TDS-OFDMA Communication Open-Loop Power Control
    1.
    发明申请
    TDS-OFDMA Communication Open-Loop Power Control 审中-公开
    TDS-OFDMA通信开环功率控制

    公开(公告)号:US20090010347A1

    公开(公告)日:2009-01-08

    申请号:US12143324

    申请日:2008-06-20

    申请人: LIN YANG Qin Liu

    发明人: LIN YANG Qin Liu

    IPC分类号: H04L27/28

    摘要: In a TDS-OFDM communications system, within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame. Within the downlink sub-frame, interposed between sub-frames are guard intervals comprising known sequences. The known sequences are used for an estimation of a received power. A method comprising the step of using a guard sequence in a guard interval of OFDM symbols of the received TDS-OFDM signals in the downlink to estimate a received signal power or an interference power is provided.

    摘要翻译: 在TDS-OFDM通信系统中,在帧时间内,包括前导码,下行链路子帧和上行链路子帧的发送信号。 在下行链路子帧内,插入子帧之间是包括已知序列的保护间隔。 已知的序列用于估计接收功率。 提供了一种在下行链路中接收的TDS-OFDM信号的OFDM符号的保护间隔中使用保护序列来估计接收信号功率或干扰功率的方法。

    TDS-OFDMA COMMUNICATION CLOSED-LOOP POWER CONTROL
    2.
    发明申请
    TDS-OFDMA COMMUNICATION CLOSED-LOOP POWER CONTROL 审中-公开
    TDS-OFDMA通信闭环功率控制

    公开(公告)号:US20090010345A1

    公开(公告)日:2009-01-08

    申请号:US12143298

    申请日:2008-06-20

    申请人: Lin Yang Qin Liu

    发明人: Lin Yang Qin Liu

    IPC分类号: H04K1/10

    摘要: In a TDS-OFDMA communications system, a frame structure comprising: a frame such that within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame; and interposed between OFDM symbols are guard intervals comprising known sequences being used for an estimation of a received power.

    摘要翻译: 在TDS-OFDMA通信系统中,一种帧结构,包括:帧,使得在帧时间内包括前导码,下行链路子帧和上行链路子帧的发送信号; 并且插入在OFDM符号之间是保护间隔,其包括用于估计接收功率的已知序列。

    METHOD AND APPARATUS FOR EQUALIZATION OF TDS-OFDM SIGNALS
    3.
    发明申请
    METHOD AND APPARATUS FOR EQUALIZATION OF TDS-OFDM SIGNALS 审中-公开
    用于均衡TDS-OFDM信号的方法和装置

    公开(公告)号:US20080232483A1

    公开(公告)日:2008-09-25

    申请号:US11689482

    申请日:2007-03-21

    申请人: Lin Yang Qin Liu

    发明人: Lin Yang Qin Liu

    IPC分类号: H04L27/28

    摘要: In an OFDM system having pseudo-noise (PN) sequences as guard intervals, a method for channel estimation and equalization is provided. The method comprising the steps of: providing a frequency equalization scheme; providing a time domain filter; and combining the frequency equalization with time-domain filter, thereby a time lag effect is taken into consideration for the channel estimation and equalization.

    摘要翻译: 在具有伪噪声(PN)序列作为保护间隔的OFDM系统中,提供了用于信道估计和均衡的方法。 该方法包括以下步骤:提供频率均衡方案; 提供时域过滤器; 并且将频率均衡与时域滤波器组合,从而考虑信道估计和均衡的时滞效应。

    METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION USING TDS-OFDM IN DOWNLINK TRANSMISSION IN THE FREQUENCY DOMAIN
    4.
    发明申请
    METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION USING TDS-OFDM IN DOWNLINK TRANSMISSION IN THE FREQUENCY DOMAIN 审中-公开
    在频域中使用TDS-OFDM在下行链路传输中的MIMO信道估计的方法和装置

    公开(公告)号:US20080225968A1

    公开(公告)日:2008-09-18

    申请号:US12048273

    申请日:2008-03-14

    申请人: Lin Yang Qin Liu

    发明人: Lin Yang Qin Liu

    IPC分类号: H04J11/00

    摘要: In an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) wireless communication system where both a transmitter and a receiver include a plurality of antennas, a method comprising the steps of: a receiver using at least one pseudo noise (PN) to associate desired information relating to a received symbol; and transforming the correlated information into frequency domain.

    摘要翻译: 在发射机和接收机都包括多个天线的正交频分复用(OFDM)多输入多输出(MIMO)无线通信系统中,一种方法包括以下步骤:使用至少一个伪噪声( PN)以关联与接收到的符号相关的期望信息; 并将相关信息转换为频域。

    Mobile receiver equalizer structure for use in the ATSC standard
    5.
    发明授权
    Mobile receiver equalizer structure for use in the ATSC standard 失效
    用于ATSC标准的移动接收机均衡器结构

    公开(公告)号:US07860157B2

    公开(公告)日:2010-12-28

    申请号:US11876368

    申请日:2007-10-22

    申请人: Lin Yang Qin Liu

    发明人: Lin Yang Qin Liu

    IPC分类号: H03H7/30

    摘要: A circuit structure has a channel estimator adapted to receive an input, an equalizer adapted to receive the input and generate an equalized output, and an equalizer training block adapted to receive estimated channel condition information, and provide a set of trained coefficients to the equalizer. The equalized output is used by the channel estimator for at least one subsequent channel estimation. The channel estimator, the equalizer, and the equalizer training block are looped together.

    摘要翻译: 电路结构具有适于接收输入的信道估计器,适于接收输入并产生均衡输出的均衡器,以及适于接收估计信道条件信息的均衡器训练块,以及向均衡器提供一组经过训练的系数。 均衡输出由信道估计器用于至少一个后续信道估计。 信道估计器,均衡器和均衡器训练块循环在一起。

    TDS-OFDMA COMMUNICATION CINR ESTIMATION
    6.
    发明申请
    TDS-OFDMA COMMUNICATION CINR ESTIMATION 审中-公开
    TDS-OFDMA通信CINR估计

    公开(公告)号:US20090316680A1

    公开(公告)日:2009-12-24

    申请号:US12143344

    申请日:2008-06-20

    申请人: LIN YANG Qin Liu

    发明人: LIN YANG Qin Liu

    IPC分类号: H04J3/06 H04L27/28 H04Q7/00

    摘要: In a TDS-OFDM communications system, within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame. Within the downlink sub-frame, interposed between sub-frames are guard intervals that have known sequences positioned therein. The known sequences are used for an estimation of a received power. A method comprising the step of using a guard sequence in a guard interval of OFDM symbols of the received TDS-OFDM signals in the downlink or the uplink to estimate a received signal power and using the estimated signal power to calculate a CINR is provided.

    摘要翻译: 在TDS-OFDM通信系统中,在帧时间内,包括前导码,下行链路子帧和上行链路子帧的发送信号。 在下行链路子帧之间,插入在子帧之间是具有定位在其中的已知序列的保护间隔。 已知的序列用于估计接收功率。 提供了一种方法,其包括在下行链路或上行链路中接收的TDS-OFDM信号的OFDM符号的保护间隔中使用保护序列来估计接收信号功率并使用估计信号功率来计算CINR的步骤。

    Adapted phase noise estimation and compensation
    7.
    发明授权
    Adapted phase noise estimation and compensation 失效
    适应相位噪声估计和补偿

    公开(公告)号:US06996192B1

    公开(公告)日:2006-02-07

    申请号:US10359430

    申请日:2003-02-05

    申请人: Qin Liu Lin Yang

    发明人: Qin Liu Lin Yang

    IPC分类号: H04L27/06

    摘要: Method and system for adaptively estimating and compensating for phase noise error in a received signal s(t;data). A plurality of transmission parameter symbol (TPS) sets, each with a representative TPS group frequency, are incorporated in the signal before transmission. Received channel response amplitudes are analyzed to select a particular TPS frequency group, and inverse Fourier transforms, N(t) and D(t), are computed for these chosen signals. A complex ratio, r(t)=N(t)/D(t), is computed and used to determine a phase angle φ(t). A phase noise error compensated, time domain signal, equal to exp{−jφ(t)}·s(t−Δt(delay);data) is provided.

    摘要翻译: 用于自适应地估计和补偿接收信号s(t;数据)中的相位噪声误差的方法和系统。 具有代表性的TPS组频率的多个传输参数符号(TPS)集合被并入传输之前的信号中。 分析接收的信道响应幅度以选择特定的TPS频率组,并且为这些选择的信号计算反傅立叶变换N(t)和D(t)。 计算复数比r(t)= N(t)/ D(t)并用于确定相位角phi(t)。 提供相位噪声误差补偿,时域信号等于exp {-jphi(t.s(t-Deltat(delay); data)。

    METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION IN A TDS-OFDM SYSTEM DOWNLINK USING A SUB-SPACE ALGORITHM IN THE FREQUENCY DOMAIN
    8.
    发明申请
    METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION IN A TDS-OFDM SYSTEM DOWNLINK USING A SUB-SPACE ALGORITHM IN THE FREQUENCY DOMAIN 审中-公开
    使用频域中的子空间算法的TDS-OFDM系统下行链路中MIMO信道估计的方法和装置

    公开(公告)号:US20080225977A1

    公开(公告)日:2008-09-18

    申请号:US12048279

    申请日:2008-03-14

    申请人: Lin Yang Qin Liu

    发明人: Lin Yang Qin Liu

    IPC分类号: H04J11/00

    摘要: In an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) wireless communication system, a method is provided for channel estimation using a sub-space method suitable for computer implementation. The system has both a transmitter and a receiver including a plurality of antennas. The method comprising the step of: a receiver using at least one pseudo noise (PN) to correlate desired information relating to a received symbol; transforming the correlated information into frequency domain; and performing channel estimation using a sub-space method suitable for computer implementation.

    摘要翻译: 在正交频分复用(OFDM)多输入多输出(MIMO)无线通信系统中,提供了一种适用于计算机实现的子空间方法进行信道估计的方法。 该系统具有包括多个天线的发射机和接收机。 该方法包括以下步骤:使用至少一个伪噪声(PN)的接收机将与所接收到的符号相关的期望信息相关联; 将相关信息转换为频域; 并且使用适合于计算机实现的子空间方法来执行信道估计。

    METHOD AND APPARATUS FOR SYNCHRONIZATION FOR MIMO TDS-OFDM SYSTEM
    9.
    发明申请
    METHOD AND APPARATUS FOR SYNCHRONIZATION FOR MIMO TDS-OFDM SYSTEM 审中-公开
    用于MIMO TDS-OFDM系统的同步的方法和装置

    公开(公告)号:US20080225997A1

    公开(公告)日:2008-09-18

    申请号:US12048353

    申请日:2008-03-14

    申请人: Lin Yang Qin Liu

    发明人: Lin Yang Qin Liu

    IPC分类号: H04L27/06

    摘要: In a TDS-OFDM system, frequency offset estimate provided. A method for estimating a frequency offset comprising the step of correlating a known PN sequence with a received signal.

    摘要翻译: 在TDS-OFDM系统中,提供频偏估计。 一种用于估计频偏的方法,包括将已知PN序列与接收信号相关的步骤。

    METHOD AND APPARATUS FOR ADAPTIVE PN LENGTH FOR TDS-OFDM IN TRANSMISSION
    10.
    发明申请
    METHOD AND APPARATUS FOR ADAPTIVE PN LENGTH FOR TDS-OFDM IN TRANSMISSION 审中-公开
    用于TDS-OFDM传输的自适应PN长度的方法和装置

    公开(公告)号:US20080225969A1

    公开(公告)日:2008-09-18

    申请号:US12048322

    申请日:2008-03-14

    申请人: LIN YANG Qin Liu

    发明人: LIN YANG Qin Liu

    IPC分类号: H04K1/10

    CPC分类号: H04L27/2605

    摘要: In a TDS-OFDM system, a method for transmission is provided. The method comprises the step of: adjusting a PN sequence length, whereby a required performance is maintained. The adjusting step comprises increasing, decreasing, or keep unchanging the PN sequence length.

    摘要翻译: 在TDS-OFDM系统中,提供了一种用于传输的方法。 该方法包括以下步骤:调整PN序列长度,由此保持所需的性能。 调整步骤包括增加,减少或保持不变PN序列长度。