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    • 2. 发明申请
    • METHOD AND DEVICE FOR TRANSMITTING/RECEIVING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTICARRIERS
    • 用于在无线通信系统中发送/接收信道状态信息的方法和装置支持多播
    • WO2011155777A3
    • 2012-05-03
    • PCT/KR2011004231
    • 2011-06-09
    • LG ELECTRONICS INCKO HYUNSOOCHUNG JAEHOONNOH MINSEOKLEE MOONIL
    • KO HYUNSOOCHUNG JAEHOONNOH MINSEOKLEE MOONIL
    • H04J11/00H04B7/26H04W88/02
    • H04W24/00H04L1/0026H04L1/0027H04L1/0029H04L1/0031H04L5/001H04W72/0413H04W72/042
    • The present invention relates to a wireless communication system, and more particularly, discloses a method and a device for transmitting/receiving channel state information in a wireless communication system supporting multicarriers. The method for transmitting downlink channel state information in the wireless communication system supporting downlink multicarriers, according to one embodiment of the present invention, comprises the following steps: receiving from at least one downlink carrier an uplink grant downlink control information (DCI) including a request for the channel state information; measuring the channel state information of at least one first type downlink carrier; and transmitting the measured channel state information on a physical uplink shared channel (PUSCH) resource indicated by the uplink grant DCI, wherein the downlink multicarriers comprise the first type downlink carrier and a second type downlink carrier, wherein the channel state information on the second type downlink carrier may not be transmitted.
    • 本发明涉及一种无线通信系统,更具体地说,涉及一种在支持多载波的无线通信系统中发送/接收信道状态信息的方法和装置。 根据本发明的一个实施例,在支持下行链路多载波的无线通信系统中发送下行链路信道状态信息的方法包括以下步骤:从至少一个下行链路载波接收包括请求的上行链路授权下行链路控制信息(DCI) 用于信道状态信息; 测量至少一个第一类型下行链路载波的信道状态信息; 以及由上行链路许可DCI指示的物理上行链路共享信道(PUSCH)资源发送测量的信道状态信息,其中下行链路多载波包括第一类型下行链路载波和第二类型下行链路载波,其中,关于第二类型的信道状态信息 下行链路载波可能不被发送。
    • 6. 发明申请
    • METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS
    • 在支持多个天线的无线通信系统中有效反馈的方法和设备
    • WO2012044088A2
    • 2012-04-05
    • PCT/KR2011007188
    • 2011-09-29
    • LG ELECTRONICS INCKO HYUNSOOCHUNG JAEHOONHAN SEUNGHEELEE MOONIL
    • KO HYUNSOOCHUNG JAEHOONHAN SEUNGHEELEE MOONIL
    • H04B7/04H04B7/26H04L1/06H04L27/26
    • H04B7/0632H04B7/0417H04B7/0456H04B7/0469H04B7/0626H04B7/063H04B7/0639H04B7/068H04L1/0026H04L1/0027H04L1/1671H04L5/001H04L5/0023H04L27/2601H04W24/10H04W28/046H04W74/0858
    • The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas. The method for transmitting a CSI for downlink multi-carrier transmission according to one embodiment of the present invention comprises the following steps: generating a CSI which contains CQIs calculated on the basis of precoding information determined by a rank indicator (RI), a first PMI, a second PMI, and/or a combination of the first and second PMIs for one or more downlink carriers; determining the CSI to be transmitted, based on priority, if two or more CSIs collide against each other in one uplink subframe on one uplink carrier; and transmitting the determined CSI through an uplink channel. The CSIs are classified into a first group including an RI, a second group including a first wideband PMI, a third group including a wideband CQI, and a fourth group including a sub-band CQI. If the CSI in the first group or the CSI in the second group collides against the CSI in the third group or the CSI in the fourth group, the CSI in the third group or in the fourth group may be suppressed due to the lower priority thereof.
    • 支持多天线的无线通信系统中的高效反馈方法和装置技术领域本发明涉及无线通信系统,更具体地说, 根据本发明的一个实施例的发送用于下行链路多载波传输的CSI的方法包括以下步骤:生成包含基于由秩指示符(RI)确定的预编码信息计算的CQI的CSI,第一PMI ,第二PMI和/或用于一个或多个下行链路载波的第一和第二PMI的组合; 如果两个或更多个CSI在一个上行链路载波上的一个上行链路子帧中彼此冲突,则基于优先级来确定要发送的CSI; 并通过上行链路信道发送所确定的CSI。 CSI被分类为包括RI的第一组,包括第一宽带PMI的第二组,包括宽带CQI的第三组以及包括子带CQI的第四组。 如果第一组中的CSI或第二组中的CSI与第三组中的CSI或第四组中的CSI冲突,则由于第三组中的CSI或第四组中的CSI可以由于其较低优先级而被抑制 。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING SIGNALS USING CODEBOOKS IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS
    • 在支持多个天线的无线通信系统中使用代码传输信号的方法和装置
    • WO2012002767A3
    • 2012-05-03
    • PCT/KR2011004842
    • 2011-07-01
    • LG ELECTRONICS INCKO HYUNSOOCHUNG JAEHOONLEE MOONIL
    • KO HYUNSOOCHUNG JAEHOONLEE MOONIL
    • H04B7/04H03M13/00H04L27/26
    • H04B7/0456H03M13/09H04B7/0465H04B7/0469H04B7/0478H04B7/0639H04B7/065H04L25/03343H04L25/0391H04L25/03949H04L27/2613
    • The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting signals using codebooks in a wireless communication system that supports multiple antennas. A method in which a base station transmits downlink signals according to one embodiment of the present invention comprises the following steps: receiving a first precoding matrix indicator (PMI) and a second precoding matrix indicator from a terminal; determining a first matrix (W1) from a first codebook including precoding matrices indicated by the first PMI, determining a second matrix (W2) from a second codebook including precoding matrices indicated by the second PMI, and determining a precoding matrix (W) based on the first matrix (W1) and second matrix (W2); performing precoding on one or more layers, to which the downlink signals are mapped, using the determined precoding matrix (W); and transmitting the precoded signals to the terminal. Each of the precoding matrices included in the first codebook is a block diagonal matrix, and one block has, as compared to the other block, a form multiplied by a predetermined phase value.
    • 无线通信系统技术领域本发明涉及一种无线通信系统,更具体地,涉及一种在支持多个天线的无线通信系统中使用码本发送信号的方法和装置。 根据本发明的一个实施例的基站传输下行链路信号的方法包括以下步骤:从终端接收第一预编码矩阵指示符(PMI)和第二预编码矩阵指示符; 从包括由第一PMI指示的预编码矩阵的第一码本确定第一矩阵(W1),从包括由第二PMI指示的预编码矩阵的第二码本确定第二矩阵(W2),以及基于 第一矩阵(W1)和第二矩阵(W2); 使用所确定的预编码矩阵(W)对在所述下行链路信号进行映射的一个或多个层上执行预编码; 并将预编码的信号发送到终端。 包括在第一码本中的每个预编码矩阵是块对角矩阵,并且与其他块相比,一个块具有乘以预定相位值的形式。