System and method capable of implicit feedback for the devices with an unequal number of transmitter and receiver chains in a wireless local area network
    64.
    发明授权
    System and method capable of implicit feedback for the devices with an unequal number of transmitter and receiver chains in a wireless local area network 有权
    能够在无线局域网中具有不等数量的发射机和接收机链的设备的隐式反馈的系统和方法

    公开(公告)号:US07830980B2

    公开(公告)日:2010-11-09

    申请号:US11006849

    申请日:2004-12-07

    CPC classification number: H04L1/0675 H04B7/0421

    Abstract: An embodiment of the present invention provides a wireless station (STA) capable of implicit feedback in a wireless local area network, comprising at least one power amplifier, a plurality of antennas capable of being connected with said at least one power amplifier, and a switch capable of switching the connection between said plurality of antennas and said at least one power amplifier thereby enabling said wireless station to sound a complete channel matrix for an access point (AP) in communication with said wireless station (STA).

    Abstract translation: 本发明的实施例提供一种能够在无线局域网中进行隐含反馈的无线站(STA),其包括至少一个功率放大器,能够与所述至少一个功率放大器连接的多个天线,以及开关 能够切换所述多个天线与所述至少一个功率放大器之间的连接,从而使得所述无线台能够对与所述无线站(STA)通信的接入点(AP)发出完整的信道矩阵。

    EFFICIENT MIMO TRANSMISSION SCHEMES
    65.
    发明申请
    EFFICIENT MIMO TRANSMISSION SCHEMES 有权
    有效的MIMO传输方案

    公开(公告)号:US20100172424A1

    公开(公告)日:2010-07-08

    申请号:US12477152

    申请日:2009-06-03

    Abstract: A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver.

    Abstract translation: 一种用于通信的方法包括:在具有第一数量的发射天线端口的发射机中,将发射机使用的第二数量的空间层的上限设置为小于第一数量。 空间层的实际数量(不超过上限)被分配用于传送给给定的接收机。 调制符号的一个或多个流被映射到所分配的实际数量的空间层上。 空间层的实际数量从发射机发射到给定的接收机。

    Apparatus and method for transmitting/receiving data in a multi-antenna communication system
    66.
    发明授权
    Apparatus and method for transmitting/receiving data in a multi-antenna communication system 有权
    在多天线通信系统中发送/接收数据的装置和方法

    公开(公告)号:US07697622B2

    公开(公告)日:2010-04-13

    申请号:US11589985

    申请日:2006-10-31

    Abstract: An apparatus for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas. Based on the channel status information, a scheduler determines a terminal to which the base station will transmit data, determines antennas via which the base station will transmit data among the plurality of antennas, and determines a space pre-coding method. A multiplexer multiplexes transmission data into a plurality of data streams according to the number of the determined antennas. A modulation and coding unit performs modulation and coding on each of the data streams. A pre-coding controller outputs a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method. A space pre-coder spatial-codes each of the coded streams with the matrix selected based on the matrix select signal. An OFDM modulator performs OFDM modulation on each of the spatial-coded streams. An RF unit transmits each of the OFDM-modulated streams via an associated antenna.

    Abstract translation: 一种在根据从终端反馈的信道状态信息发送数据并使用多个天线的无线通信系统的基站中发送数据的装置。 基于信道状态信息,调度器确定基站将发送数据的终端,确定基站将在多个天线之间发送数据的天线,并确定空间预编码方法。 复用器根据确定的天线的数量将传输数据复用到多个数据流中。 调制和编码单元对每个数据流执行调制和编码。 预编码控制器根据空间预编码方法输出用于选择多个空间预编码矩阵之一的矩阵选择信号。 空间预编码器使用基于矩阵选择信号选择的矩阵对每个编码流进行空间编码。 OFDM调制器对每个空间编码流执行OFDM调制。 RF单元经由相关联的天线发送每个OFDM调制的流。

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