Techniques to generate a precoding matrix for a wireless system
    131.
    发明授权
    Techniques to generate a precoding matrix for a wireless system 有权
    为无线系统生成预编码矩阵的技术

    公开(公告)号:US08682656B2

    公开(公告)日:2014-03-25

    申请号:US12583994

    申请日:2009-08-28

    IPC分类号: G10L19/12

    摘要: A codebook generation system and associated methods are generally described herein. A method of generating a precoding matrix during closed-loop spatial multiplexing of wireless data may comprise selecting a vector from among vectors stored in a memory based on a received index, applying a Householder transformation to the selected vector to produce an output matrix, forming the precoding matrix from one or more columns of the output matrix, and precoding data for transmission over a wireless channel using the precoding matrix. Other embodiments are described and claimed.

    摘要翻译: 本文一般地描述码本生成系统和相关联的方法。 在无线数据的闭环空间复用期间生成预编码矩阵的方法可以包括基于接收到的索引从存储在存储器中的向量中选择一个向量,对所选择的向量应用Householder变换以产生输出矩阵,形成 预编码矩阵,以及用于使用预编码矩阵在无线信道上进行传输的预编码数据。 描述和要求保护其他实施例。

    MAC slot alignment among multiple wireless stations
    132.
    发明授权
    MAC slot alignment among multiple wireless stations 有权
    多个无线站之间的MAC时隙对齐

    公开(公告)号:US08665736B2

    公开(公告)日:2014-03-04

    申请号:US12394583

    申请日:2009-02-27

    IPC分类号: G01R31/08

    摘要: A device in a wireless network receives signals and determines media access control (MAC) slot boundaries of the received signals. The MAC slot boundaries are averaged in time, and a local slot boundary is modified in response thereto. The local MAC slot boundary is modified by less than ten percent of a short interframe space until the local MAC slot boundary is within one orthogonal frequency division multiplexing (OFDM) cyclic prefix duration of the averaged MAC slot boundaries.

    摘要翻译: 无线网络中的设备接收信号并确定接收信号的媒体接入控制(MAC)时隙边界。 MAC时隙边界在时间上被平均,并且响应于此而修改本地时隙边界。 本地MAC时隙边界被修改为小于帧间间隔空间的百分之十,直到本地MAC时隙边界在平均MAC时隙边界的正交频分复用(OFDM)循环前缀持续时间内。

    MOBILE DEVICE TRANSMITTER AND METHODS FOR TRANSMITTING SIGNALS IN DIFFERENT SIGNAL DIMENSIONS FOR 3GPP LTE
    133.
    发明申请
    MOBILE DEVICE TRANSMITTER AND METHODS FOR TRANSMITTING SIGNALS IN DIFFERENT SIGNAL DIMENSIONS FOR 3GPP LTE 审中-公开
    移动设备发射机和用于在3GPP LTE的不同信号尺寸中发送信号的方法

    公开(公告)号:US20130243118A1

    公开(公告)日:2013-09-19

    申请号:US13895555

    申请日:2013-05-16

    IPC分类号: H04L25/08

    摘要: Embodiments of a mobile device transmitter and methods for transmitting signals in different signal dimensions are generally disclosed herein. The mobile device transmitter comprises a mapper to map a block of two or more input modulation symbols to different signal dimensions comprising two or more spatial dimensions, and linear transform circuitry to perform a linear transform on the block of mapped input modulation symbols to generate a block of preceded complex-valued output symbols such that each output symbol carries some information of more than one input modulation symbol. The mobile device also comprises transmitter circuitry to generate time-domain signals from the blocks of precoded complex-valued output symbols for each of the spatial dimensions for transmission using the two or more antennas. The precoded complex-valued output symbols are mapped to different signal dimensions comprising at least different frequency dimensions prior to transmission.

    摘要翻译: 移动设备发射机的实施例和用于在不同信号尺寸上传输信号的方法一般在此公开。 移动设备发射机包括映射器,以将两个或更多个输入调制符号的块映射到包括两个或更多个空间维度的不同信号维度,以及线性变换电路,用于对映射的输入调制符号块执行线性变换以产生块 之前的复值输出符号,使得每个输出符号携带多于一个输入调制符号的一些信息。 移动设备还包括发射机电路,用于根据用于使用两个或更多个天线进行传输的每个空间维度,从预编码的复值输出符号块生成时域信号。 预编码的复值输出符号被映射到在传输之前至少包括不同频率尺寸的不同信号尺寸。

    TECHNIQUES USING DIFFERENTIAL PRECODING FOR HIGHLY CORRELATED CHANNELS IN WIRELESS NETWORKS
    134.
    发明申请
    TECHNIQUES USING DIFFERENTIAL PRECODING FOR HIGHLY CORRELATED CHANNELS IN WIRELESS NETWORKS 有权
    在无线网络中使用高分辨率通道的差分预处理技术

    公开(公告)号:US20130223495A1

    公开(公告)日:2013-08-29

    申请号:US13591613

    申请日:2012-08-22

    IPC分类号: H04B7/04

    摘要: An embodiment of the present invention provides a method of using differential precoding feedback for correlated channels, comprising, transmitting by a mobile station (MS) as feedback an index angle for a differential discrete Fourier transform (DFT) codeword corresponding to a shift of a dominant beam represented by a base codeword, where the feedback corresponds to a precoding vector V(t)=Q({circumflex over (θ)}) for index angle θ, where Q  ( θ ^ ) = [ 1  j   2   π   m / 32  j   4   π   m / 32  j   6   π   m / 32 ] and m=−16 cos({circumflex over (θ)}).

    摘要翻译: 本发明的一个实施例提供了一种使用用于相关信道的差分预编码反馈的方法,包括:由移动台(MS)作为对应于主导的移位的差分离散付里叶变换(DFT)码字的索引角的反馈, 由基本码字表示的波束,其中反馈对应于用于索引角度θ的预编码矢量V(t)= Q({回旋(θ)}),其中Q(θ^)= [1j2 m = -16 cos({circumflex over(theta)})]]>其中, 。

    Providing CQI feedback with common code rate to a transmitter station
    135.
    发明授权
    Providing CQI feedback with common code rate to a transmitter station 有权
    向发射台提供具有共同码率的CQI反馈

    公开(公告)号:US08488709B2

    公开(公告)日:2013-07-16

    申请号:US12871361

    申请日:2010-08-30

    IPC分类号: H04B7/02 H04B1/00

    摘要: Methods and apparatuses for providing CQI feedback with common code rate to a transmitter station are described herein. In one implementation, the methods may include a receiver station that is communicatively linked to a transmitter station via k spatial channels transmitting a first CQI to the transmitter station that indicates a modulation level for use by the transmitter station to transmit (i.e., to configure for transmission) a first of k streams of signals to be transmitted to the receiver station. The first CQI may further include a common code rate to be used by the transmitter station for transmitting the first of the k streams of signals as well as for transmitting the rest of the k−1 additional streams of signals to the receiver station. The receiver station may further transmit to the transmitter station k−1 additional CQIs to indicate to the transmitter station the k−1 modulation levels to be used by the transmitter station for transmitting the k−1 additional streams of signals to the receiver station.

    摘要翻译: 这里描述了用于向发射机站提供具有共同码率的CQI反馈的方法和装置。 在一个实施方式中,所述方法可以包括经由k个空间信道与发射机站通信地链接到发射机站的接收机站,所述空间信道向发射机站发射指示调制电平供发射机站使用以发射(即,配置为 传输)要发送到接收站的k个信号流中的第一个。 第一CQI还可以包括由发射机站用于发射信号的第一个信号流中的第一个信号以及将其余的k-1个附加信号流发射到接收机站的公共码率。 接收机站还可以向发射机站k-1发送额外的CQI,以向发射机台发射要由发射机站用于向接收机发射k-1个附加信号流的k-1个调制等级。

    Beamforming codebook generation system and associated methods
    139.
    发明授权
    Beamforming codebook generation system and associated methods 有权
    波束形成码本生成系统及相关方法

    公开(公告)号:US08340961B2

    公开(公告)日:2012-12-25

    申请号:US12583954

    申请日:2009-08-28

    IPC分类号: G10L19/00 H04K1/10

    摘要: A codebook generation system and associated methods are generally described herein. For instance, a codebook generation agent (CGA) may implement techniques for generating one or more matrix codebooks from vector codebooks. The CGA may be implemented in mobile devices (e.g., stations, subscriber units, handsets, laptops, etc.). In this regard, the dynamic generation of matrix codebooks rather than having them stored on the mobile device enables the mobile device to utilize the memory normally consumed by the matrix codebooks in support of other features and/or services.

    摘要翻译: 本文一般地描述码本生成系统和相关联的方法。 例如,码本生成代理(CGA)可以实现用于从向量码本生成一个或多个矩阵码本的技术。 CGA可以在移动设备(例如,站,用户单元,手机,笔记本电脑等)中实现。 在这方面,矩阵码本的动态生成而不是将它们存储在移动设备上使得移动设备能够利用矩阵码本通常消耗的存储器来支持其他特征和/或服务。