QR decomposition apparatus and method for MIMO system
    1.
    发明授权
    QR decomposition apparatus and method for MIMO system 失效
    用于MIMO系统的QR分解装置和方法

    公开(公告)号:US07804801B2

    公开(公告)日:2010-09-28

    申请号:US12131617

    申请日:2008-06-02

    IPC分类号: H04W4/00

    摘要: Provided are a QR decomposition apparatus and method for a MIMO system. The QR decomposition apparatus includes: a norm calculator for calculating a vector size norm for a channel input; a Q column calculator for calculating a column value of a unitary matrix Q by multiplying a delayed channel input with √{square root over (norm)}; an R row calculator for receiving the delayed channel input, the output of the Q column calculator, and 1/√{square root over (norm)}, and calculating a row value of an upper triangular matrix R; a Q update calculator for receiving the delayed channel input, the output of the R row calculator, and a delayed output of the Q column calculator, and calculating a Q update matrix value; and a norm update calculator for receiving a delayed output of the norm calculator and an output of the R row calculator, and outputting a norm update matrix value.

    摘要翻译: 提供了一种用于MIMO系统的QR分解装置和方法。 QR分解装置包括:用于计算信道输入的矢量大小范数的范数计算器; Q列计算器,用于通过将延迟的信道输入与{平方根超过(norm)}相乘来计算酉矩阵Q的列值; 用于接收延迟信道输入的R行计算器,Q列计算器的输出和1 /√{平方根超过(norm)},并计算上三角矩阵R的行值; 用于接收延迟信道输入,R行计算器的输出和Q列计算器的延迟输出的Q更新计算器,并计算Q更新矩阵值; 以及范数更新计算器,用于接收范数计算器的延迟输出和R行计算器的输出,并输出范数更新矩阵值。

    Medium access control method and data transmission method using the same in wireless local area network
    5.
    发明授权
    Medium access control method and data transmission method using the same in wireless local area network 失效
    在无线局域网中采用相同的媒体访问控制方法和数据传输方法

    公开(公告)号:US08300612B2

    公开(公告)日:2012-10-30

    申请号:US12129007

    申请日:2008-05-29

    CPC分类号: H04W72/1278 H04W28/20

    摘要: Provided are a MAC method and a method for transmitting data using the same in a WLAN. The MAC method includes: transmitting a bandwidth scheduling report frame for informing information on downlinks and uplinks allocated to a terminal by including the bandwidth scheduling report frame in one of the downlinks where the bandwidth scheduling report frame includes a plurality of downlinks, a plurality of uplinks, and a plurality of short uplinks and the number of the plurality of downlinks is equal to the number of the plurality of uplinks; receiving a bandwidth request frame for requesting bandwidth allocation through one of the uplinks; and allocating a bandwidth to each of the terminals by an unit of the downlink and the uplink.

    摘要翻译: 提供了一种MAC方法和一种用于在WLAN中发送数据的方法。 MAC方法包括:通过在带宽调度报告帧包括多个下行链路的下行链路之一中包括带宽调度报告帧来发送用于通知分配给终端的下行链路和上行链路的信息的带宽调度报告帧,多个上行链路 和多个短上行链路,并且多个下行链路的数量等于多个上行链路的数量; 接收用于通过所述上行链路之一请求带宽分配的带宽请求帧; 并且通过下行链路和上行链路的单元向每个终端分配带宽。