METHOD FOR PILOT SYMBOL TRANSMISSION IN DOWNLINK MIMO SYSTEM
    22.
    发明申请
    METHOD FOR PILOT SYMBOL TRANSMISSION IN DOWNLINK MIMO SYSTEM 有权
    下行MIMO系统中的引导符号传输方法

    公开(公告)号:US20110244873A1

    公开(公告)日:2011-10-06

    申请号:US13121936

    申请日:2009-10-01

    IPC分类号: H04W72/00

    摘要: The present invention relates to a method for transmitting a pilot signal in a downlink MIMO (Multi Input Multi Output) system that supports a first UE (User Equipment) supporting N number of transmission antennae out of a total of M transmission antennae and supports a second UE supporting said M (M>N) number of transmission antennae. Said method comprises a step wherein a pilot symbol is placed as an image in the resource block (RB) region on a subframe that enables the transmission of a user-specific pilot symbol to said second UE in a base station; and a step wherein the subframe whereon said pilot symbol has been placed as an image is transmitted, wherein said RB region includes a first region and a second region, and the first region and the second region each include a certain number of continuous OFDM symbols on a respective time axis, and on said first region is placed as an image a cell-specific pilot symbol with respect to the transmission antenna ports 0 to N−1 that can recognize both said first UE and said second UE, and on said second region is placed as an image a user-specific pilot symbol with respect to the transmission antenna ports 0 to M that can recognize said UE only.

    摘要翻译: 本发明涉及一种用于在支持在总共M个传输天线中支持N个发射天线的第一UE(用户设备)的下行链路MIMO(多输入多输出))系统中发送导频信号的方法,并且支持第二 UE支持所述M(M> N)个发射天线。 所述方法包括一个步骤,其中导频符号作为图像被放置在能够在基站中向所述第二UE发送用户专用导频符号的子帧上的资源块(RB)区域中; 并且发送其中所述导频符号已经被放置为图像的子帧的步骤,其中所述RB区域包括第一区域和第二区域,并且第一区域和第二区域各自包括一定数量的连续OFDM符号, 相对于能够识别所述第一UE和所述第二UE的发送天线端口0至N-1,并且在所述第二区域上,在所述第一区域上将所述第一区域作为图像放置为小区特定导频符号, 相对于仅能够识别所述UE的发送天线端口0至M而被放置为图像用户特定的导频符号。

    APPARATUS AND METHOD FOR DATA TRANSMISSION USING TRANSMISSION DIVERSITY IN SC-FDMA SYSTEM
    23.
    发明申请
    APPARATUS AND METHOD FOR DATA TRANSMISSION USING TRANSMISSION DIVERSITY IN SC-FDMA SYSTEM 有权
    在SC-FDMA系统中使用传输多样性进行数据传输的装置和方法

    公开(公告)号:US20110134903A1

    公开(公告)日:2011-06-09

    申请号:US13058488

    申请日:2009-06-05

    IPC分类号: H04B7/208

    摘要: Disclosed is a data transmission apparatus for providing transmission diversity in an SC-FDMA (Single Carrier-Frequency Division Multiple Access) system. The data transmission apparatus comprises: a data processor, which performs coding and modulation on an information bit to generate a data symbol; an SC-FDMA processor, which changes a weight matrix per change-cycle, precodes the data symbol for each weight matrix being changed and performs SC-FDMA modulation for generating an SC-FDMA symbol; and an RF unit, which transmits the SC-FDMA symbol. With the application of a PVS method to the SC-FDMA system, not only can transmission diversity be provided, but PAPR can also be reduced and single-carrier properties can be maintained.

    摘要翻译: 公开了一种用于在SC-FDMA(单载波 - 频分多址)系统中提供传输分集的数据传输装置。 数据传输装置包括:数据处理器,对信息位执行编码和调制以产生数据符号; 改变每个改变周期的权重矩阵的SC-FDMA处理器对每个被改变的权重矩阵的数据符号进行预编码,并执行SC-FDMA调制以产生SC-FDMA符号; 以及发送SC-FDMA符号的RF单元。 随着PVS方法的应用,SC-FDMA系统不仅可以提供传输分集,而且可以降低PAPR,保持单载波性能。

    RANK FEEDBACK METHOD FOR MULTIPLE-INPUT MULTIPLE-OUTPUT TRANSMISSION
    25.
    发明申请
    RANK FEEDBACK METHOD FOR MULTIPLE-INPUT MULTIPLE-OUTPUT TRANSMISSION 有权
    用于多输入多输出传输的排序反馈方法

    公开(公告)号:US20090207784A1

    公开(公告)日:2009-08-20

    申请号:US12371565

    申请日:2009-02-13

    IPC分类号: H04W40/00 H04L27/28

    摘要: A method for transmitting a plurality of control information through a PUCCH or a PUSCH is disclosed. The method includes transmitting first control information, and transmitting second control information. The transmission of the first control information and the transmission of the second control information are performed in units of one subframe and are performed once per predetermined period, respectively. In a subframe in which the transmission of the second control information is to be simultaneously performed with the transmission of the first control information, the second control information is excluded for transmission or the first and the second information are simultaneously transmitted, according to the configuration of a closed-loop system or an open-loop system.

    摘要翻译: 公开了一种通过PUCCH或PUSCH发送多个控制信息的方法。 该方法包括发送第一控制信息和发送第二控制信息。 第一控制信息的传输和第二控制信息的发送分别以一个子帧为单位进行,并且每预定时间段执行一次。 在通过发送第一控制信息同时执行第二控制信息的传输的子帧中,根据第一控制信息的配置,排除第二控制信息以发送或者第一和第二信息被同时发送 闭环系统或开环系统。

    Method and device for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas
    27.
    发明授权
    Method and device for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas 有权
    用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置

    公开(公告)号:US08675589B2

    公开(公告)日:2014-03-18

    申请号:US13386022

    申请日:2010-08-13

    IPC分类号: H04W4/00

    摘要: A method for a base station to transmit a channel-state-information reference signal for up to 8 antenna ports includes mapping, in accordance with a predetermined pattern, the channel-state-information reference signal for up to 8 antenna ports onto a data region of a downlink subframe having an extended cyclic prefix (CP) structure, and transmitting the downlink subframe onto which the channel-state-information reference signal for up to 8 antenna ports has been mapped; and, in the predetermined pattern, the channel-state-information reference signal for up to 8 antenna ports in mapped onto 2 OFDM symbols on the data region of the downlink subframe, with a definition for mapping onto at least one of 4 subcarrier wave positions in each of the 2 OFDM symbols, and the 4 subcarrier wave positions defined in the predetermined pattern can be disposed at 3 subcarrier wave intervals.

    摘要翻译: 用于基站发送用于多达8个天线端口的信道状态信息参考信号的方法包括:根据预定模式将多达8个天线端口的信道状态信息参考信号映射到数据区域 具有扩展循环前缀(CP)结构的下行链路子帧,并且发送用于多达8个天线端口的信道状态信息参考信号已被映射到的下行链路子帧; 并且在预定模式中,在下行链路子帧的数据区域上映射到2个OFDM符号上的多达8个天线端口的信道状态信息参考信号,具有用于映射到4个子载波波位置中的至少一个的定义 在2个OFDM符号中的每一个中,以预定模式定义的4个子载波波位置可以以3个子载波波间隔设置。