METHOD OF LINK ADAPTATION IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME
    333.
    发明申请
    METHOD OF LINK ADAPTATION IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME 有权
    在无线局域网中链接适配的方法及其设备

    公开(公告)号:US20130188630A1

    公开(公告)日:2013-07-25

    申请号:US13878173

    申请日:2011-10-07

    CPC classification number: H04W84/12 H04L1/0025 H04L1/1671 H04L1/1685

    Abstract: A method of link adaptation in a wireless local area network is provided. The method includes requesting, by a requester, modulation and coding scheme (MCS) feedback to a plurality of responders, by transmitting a MCS request (MRQ) indicator, and, receiving, by the requester, feedback frames from each of the plurality of responders, wherein each of the feedback frame comprises MCS feedback (MFB) information.

    Abstract translation: 提供了一种在无线局域网中进行链路自适应的方法。 该方法包括通过发送MCS请求(MRQ)指示符,向请求者请求调制和编码方案(MCS)反馈给多个响应者,并且由请求者从多个响应者中的每一个响应者接收反馈帧 其中每个反馈帧包括MCS反馈(MFB)信息。

    Method and apparatus for transmitting uplink signals using optimized rank 3 codebook
    334.
    发明授权
    Method and apparatus for transmitting uplink signals using optimized rank 3 codebook 有权
    使用优化等级3码本发送上行链路信号的方法和装置

    公开(公告)号:US08493836B2

    公开(公告)日:2013-07-23

    申请号:US12825252

    申请日:2010-06-28

    Abstract: A method for transmitting and receiving uplink signals using an optimized rank 3 codebook is disclosed. The optimized rank 3 codebook includes 12 precoding matrix groups, which are consisted of 6 Tx antenna power balanced precoding matrix groups and 6 layer power balanced precoding matrix groups. Preferably, the optimized 4Tx rank 3 codebook has 20 precoding matrix, two precoding matrixes are selected from each the 6 Tx antenna power balanced precoding matrix groups, considering chordal distance and the number of precoding matrix. And then 8 precoding matrices are selected from the layer balanced precoding matrix groups.

    Abstract translation: 公开了一种使用优化的3级码本发送和接收上行链路信号的方法。 优化级3码本包括12个预编码矩阵组,由6个Tx天线功率平衡预编码矩阵组和6层功率平衡预编码矩阵组组成。 优选地,优化的4Tx等级3码本具有20个预编码矩阵,考虑到弦距离和预编码矩阵的数量,从6个Tx天线功率平衡预编码矩阵组中选出两个预编码矩阵。 然后从层平衡预编码矩阵组中选择8个预编码矩阵。

    METHOD AND APPARATUS FOR OPERATING A POWER SAVE MODE IN A WIRELESS LAN SYSTEM
    337.
    发明申请
    METHOD AND APPARATUS FOR OPERATING A POWER SAVE MODE IN A WIRELESS LAN SYSTEM 有权
    在无线LAN系统中操作省电模式的方法和装置

    公开(公告)号:US20130070658A1

    公开(公告)日:2013-03-21

    申请号:US13700123

    申请日:2011-05-25

    Abstract: The present invention relates to a method for operating a power save mode in a wireless LAN system. The method involves transmitting a power save multi-poll (PSMP) frame containing a power save mode (PSM) of a non-access point (AP) station (STA) to a first station and to a second station which are paired with an AP on the basis of multiple input multiple output (MIMO) technology. Information on the PSM contains downlink transmission start offset which indicates the point in time of starting a downlink transmission period, a downlink transmission duration which indicates the duration of the downlink transmission period, and transmission object station identification information. The method further involves transmitting a data frame to the first station and to the second station on the basis of the MIMO technology during the downlink transmission period. The transmission object station identification information indicates a group identifier (group ID) for indicating an object station group including the first station and the second station, which are object stations to which the AP transmits the data frame on the basis of the MIMO technology.

    Abstract translation: 本发明涉及一种在无线LAN系统中操作省电模式的方法。 该方法包括将包含非接入点(AP)站(STA)的省电模式(PSM)的省电多轮询(PSMP)帧发送到与AP配对的第一站和第二站 在多输入多输出(MIMO)技术的基础上。 关于PSM的信息包含指示开始下行链路发送期间的时间点的下行链路发送开始偏移,表示下行链路发送期间的持续时间的下行链路发送持续时间,以及发送对象站识别信息。 该方法还包括在下行链路传输周期期间基于MIMO技术将数据帧发送到第一站和第二站。 传输对象站识别信息指示用于指示包括第一站和第二站的目标站组的组标识符(组ID),其是基于MIMO技术的AP发送数据帧的对象站。

    Method for transmitting downlink reference signals in a multi-antenna wireless communication system
    338.
    发明授权
    Method for transmitting downlink reference signals in a multi-antenna wireless communication system 有权
    一种用于在多天线无线通信系统中发送下行链路参考信号的方法

    公开(公告)号:US08400994B2

    公开(公告)日:2013-03-19

    申请号:US12608704

    申请日:2009-10-29

    CPC classification number: H04B7/0874 H04B7/0434 H04B7/0691

    Abstract: A method for transmitting downlink reference signal in a multi-antenna wireless communication system is disclosed. The method includes allocating RSs for a first antenna group to a subframe having a predetermined area with different access levels for user equipments having different access capabilities, pairing RSs for a second antenna group with RSs for the first antenna group, allocating the paired RSs to the predetermined area of the subframe in code division multiplexing, and transmitting the subframe on the downlink.

    Abstract translation: 公开了一种用于在多天线无线通信系统中发送下行链路参考信号的方法。 该方法包括将第一天线组的RS分配给具有对具有不同接入能力的用户设备具有不同接入电平的预定区域的子帧,将第二天线组的RS与第一天线组的RS配对,将配对RS分配给 在码分复用中子帧的预定区域,并在下行链路上发送子帧。

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