Method and apparatus for improved spatial temporal turbo channel coding (STTCC) using eigen-beamforming
    3.
    发明授权
    Method and apparatus for improved spatial temporal turbo channel coding (STTCC) using eigen-beamforming 失效
    使用特征波束形成改进空间时间Turbo信道编码(STTCC)的方法和装置

    公开(公告)号:US08385451B2

    公开(公告)日:2013-02-26

    申请号:US11760266

    申请日:2007-06-08

    IPC分类号: H04B7/02 H04L25/49

    摘要: The present invention is a method and apparatus for improving the performance of spatial temporal turbo channel coding (STTCC) used in multiple-input multiple-output (MIMO) wireless communication systems called eigen-STTCC (E-STTCC) that employs eigen-beamforming to make use of orthogonal eigen streams in the MIMO channel. Singular value decomposition (SVD) is applied to the channel matrix producing a linear precoding matrix containing the orthonormal basis for the eigen streams. In a first embodiment, the turbo encoded codeword containing concatenated systematic and parity bits is precoded with the linear precoding matrix such that the systematic bits are transmitted over the eigen streams with highest power. In a second embodiment, the codeword is made up of interleaved systematic bits and parity bits prior to eigen beamform preceding, effectively interleaving the systematic and data bits spatially over the eigen streams. In an alternate embodiment, the data stream is interleaved at the input to the encoder.

    摘要翻译: 本发明是一种用于改善在称为特征STTCC(E-STTCC)的多输入多输出(MIMO)无线通信系统中使用的空间时间turbo信道编码(STTCC)的性能的方法和装置,其使用特征波束形成 利用MIMO信道中的正交本征流。 将奇异值分解(SVD)应用于产生包含本征流的正交基的线性预编码矩阵的信道矩阵。 在第一实施例中,包含连接的系统和奇偶校验位的turbo编码码字用线性预编码矩阵进行预编码,使得系统比特在具有最高功率的本征流上传输。 在第二实施例中,码字由在本征波束形成之前的交织的系统比特和奇偶校验位组成,有效地将系统和数据比特空间地交织在本征流上。 在替代实施例中,数据流在编码器的输入处交错。

    Method, apparatus and system for implementing multi-user virtual multiple-input multiple-output
    4.
    发明授权
    Method, apparatus and system for implementing multi-user virtual multiple-input multiple-output 有权
    用于实现多用户虚拟多输入多输出的方法,装置和系统

    公开(公告)号:US08305956B2

    公开(公告)日:2012-11-06

    申请号:US11834923

    申请日:2007-08-07

    IPC分类号: H04W4/00

    摘要: A method and system for implementing multi-user virtual multiple-input multiple-output (MIMO) techniques for wireless transmit/receive units (WTRUs) having one or more antennas are disclosed. The system includes a base station and at least one WTRU having at least two antennas. The number of antennas of the base station is not less than the number of antennas of any of the WTRUs. The base station generates a channel matrix for the WTRUs and processes received signals from the WTRUs based on a measurement of the channel matrix. The WTRUs may perform transmit precoding or eigen-beamforming using the channel matrix information. The WTRUs may also perform transmit diversity.

    摘要翻译: 公开了一种用于实现具有一个或多个天线的无线发射/接收单元(WTRU)的多用户虚拟多输入多输出(MIMO)技术的方法和系统。 该系统包括基站和至少一个具有至少两个天线的WTRU。 基站的天线数量不小于任何WTRU的天线数量。 基站为WTRU生成信道矩阵,并基于信道矩阵的测量来处理来自WTRU的接收信号。 WTRU可以使用信道矩阵信息来执行发送预编码或特征波束成形。 WTRU还可以执行发射分集。

    METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL
    5.
    发明申请
    METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL 有权
    支持传输时间间隔的多个混合自动重传请求过程的方法和系统

    公开(公告)号:US20120173946A1

    公开(公告)日:2012-07-05

    申请号:US13309713

    申请日:2011-12-02

    IPC分类号: H04L1/18 G06F11/14

    摘要: A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs).

    摘要翻译: 一种方法和装置可以用于支持每个传输时间间隔(TTI)的多个混合自动重复请求(H-ARQ)过程。 发射机和接收机可以包括多个H-ARQ过程。 每个H-ARQ过程可以每TTI发送和接收一个TB。 发射机可以生成多个TB并将每个TB分配给H-ARQ过程。 发射机可以发送每个TB的控制信息,其可以包括具有TB的H-ARQ信息相关联的TB。 发射机可以使用每个TTI同时使用相关的H-ARQ过程来发送TB。 在接收到TB之后,接收机可以向H-ARQ进程和相关联的TB中的每一个发送反馈,指示每个TB到发射机的成功或不成功的接收。 可以将多个TB的反馈组合用于同时发送的H-ARQ过程(即,TB)。

    Method and system for transmit power control in a multiple-input multiple-output wireless communication system
    8.
    发明授权
    Method and system for transmit power control in a multiple-input multiple-output wireless communication system 失效
    多输入多输出无线通信系统中发射功率控制的方法和系统

    公开(公告)号:US07643843B2

    公开(公告)日:2010-01-05

    申请号:US11152511

    申请日:2005-06-14

    IPC分类号: H04B7/00

    摘要: The present invention is related to a method and system for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter for controlling the transmit power. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.

    摘要翻译: 本发明涉及一种用于多输入多输出(MIMO)无线通信系统中的发射功率控制的方法和系统。 发射机和接收机都包括用于传输和接收的多个天线。 发射机包括功率分配单元,用于基于从接收机接收的反馈来控制发射功率。 接收机包括信道估计器和奇异值分解(SVD)单元。 信道估计器从从发射机接收的信号中生成信道矩阵,并且SVD单元将信道矩阵分解为D,U和V矩阵。 接收机将基于SVD单元的输出产生的反馈发送到发射机以控制发射功率。 反馈可以是特征值,发射功率电平或功率控制位或命令之一。 可以实现用于基于信道条件选择其中的一个的混合方案。

    CHANNEL CODING AND RATE MATCHING FOR LTE CONTROL CHANNELS
    9.
    发明申请
    CHANNEL CODING AND RATE MATCHING FOR LTE CONTROL CHANNELS 审中-公开
    LTE控制信道的信道编码和速率匹配

    公开(公告)号:US20080301536A1

    公开(公告)日:2008-12-04

    申请号:US12130763

    申请日:2008-05-30

    IPC分类号: H03M13/23 G06F11/00

    摘要: A method and apparatus for channel coding and rate matching of the Physical Uplink Control Channel (PUCCH) and the Physical Downlink Control Channel (PDCCH) is disclosed that uses convolutional encoding to code the control channels. Rate matching is performed using a circular buffer based rate matching algorithm. A rate matching module may contain a single interleaver or may alternatively comprise a plurality of sub-block interleavers. Interleaved coded bits may be stored in the circular buffer in an interlaced format, or output streams from separate sub-block interleavers may be stored contiguously. When a plurality of sub-block interleavers are used, different interleaving patterns may be used. Rate matching may use bit puncturing or repetition to match the rate of the available physical channel resource. Rate matched output bits may be interleaved using a channel interleaver.

    摘要翻译: 公开了用于物理上行链路控制信道(PUCCH)和物理下行链路控制信道(PDCCH)的信道编码和速率匹配的方法和装置,其使用卷积编码来对控制信道进行编码。 使用基于循环缓冲器的速率匹配算法来执行速率匹配。 速率匹配模块可以包含单个交织器,或者可以包括多个子块交织器。 交错编码比特可以以隔行格式存储在循环缓冲器中,或者来自分开的子块交织器的输出流可以被连续地存储。 当使用多个子块交织器时,可以使用不同的交织模式。 速率匹配可以使用比特删截或重复来匹配可用物理信道资源的速率。 速率匹配输出位可以使用信道交织器进行交织。

    Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver
    10.
    发明授权
    Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver 有权
    使用快速傅立叶变换的无线通信设备在正交频分复用接收机中创建,优化和并入波束空间天线阵列

    公开(公告)号:US07453964B2

    公开(公告)日:2008-11-18

    申请号:US11586415

    申请日:2006-10-25

    IPC分类号: H04B1/02

    摘要: A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.

    摘要翻译: 一种在包含波束空间天线阵列的正交频分复用(OFDM)接收机中使用快速傅里叶变换(FFT)的无线通信装置。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列,垂直阵列或圆形阵列和垂直阵列的组合,用于提供所需的角度天线覆盖。 在一个实施例中,天线阵列被优化,因为FFT是线性不变变换运算符,由此OFDM接收机中的操作顺序可以互换。