Method and apparatus for transceiving a precoded signal in a multiple antenna supported wireless communication system
    17.
    发明授权
    Method and apparatus for transceiving a precoded signal in a multiple antenna supported wireless communication system 有权
    在支持多天线的无线通信系统中收发预编码信号的方法和装置

    公开(公告)号:US08982978B2

    公开(公告)日:2015-03-17

    申请号:US13814493

    申请日:2011-08-23

    摘要: The present invention relates to a method for transmitting a signal from a transmitter to a receiver through N number of transmitting antennas (where N≧2), comprising: selecting a first and a second matrix from a first and a second codebook related to a first and a second precoding matrix indicator (PMI), respectively, and determining a precoding matrix on the basis of the first and second matrix; performing precoding by using the determined precoding matrix for L number of layers (where 1≦L≦N) to which a signal to be transmitted to the receiver is mapped; and transmitting the precoded signal to the receiver through the N number of transmitting antennas. Here, the first codebook includes one or more diagonal matrices having an N×N size, non-zero elements in the diagonal matrix has a predetermined phase value, and the second codebook includes one or more matrices having an N×L size.

    摘要翻译: 本发明涉及一种用于通过N个发射天线(其中N≥2)从发射机向接收机发射信号的方法,包括:从与第一和第二天线相关的第一和第二码本中选择第一和第二矩阵 和第二预编码矩阵指示符(PMI),并且基于第一和第二矩阵确定预编码矩阵; 通过使用确定的预编码矩阵来执行预编码,所述预编码矩阵用于映射要发送到接收机的信号的L层数(其中1< NlE; L≦̸ N) 并通过N个发送天线将预编码的信号发送到接收机。 这里,第一码本包括具有N×N大小的一个或多个对角矩阵,对角矩阵中的非零元素具有预定的相位值,并且第二码本包括具有N×L大小的一个或多个矩阵。

    Method and apparatus for transmitting signals using codebooks in a wireless communication system that supports multiple antennas
    18.
    发明授权
    Method and apparatus for transmitting signals using codebooks in a wireless communication system that supports multiple antennas 有权
    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

    公开(公告)号:US08964866B2

    公开(公告)日:2015-02-24

    申请号:US13807219

    申请日:2011-07-01

    摘要: 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 matrixes 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.

    摘要翻译: 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; 从包括由所述第一PMI指示的预编码矩阵的第一码本确定第一矩阵(W1),从包括由所述第二PMI指示的预编码矩阵的第二码本确定第二矩阵(W2),以及基于所述预编码矩阵 在第一矩阵(W1)和第二矩阵(W2)上; 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。

    METHOD AND DEVICE FOR DOWNLINK CONFIRMATION RESPONSE DATA TRANSMISSION RESOURCE ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM
    19.
    发明申请
    METHOD AND DEVICE FOR DOWNLINK CONFIRMATION RESPONSE DATA TRANSMISSION RESOURCE ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中下行确认响应数据传输资源分配的方法与设备

    公开(公告)号:US20130051371A1

    公开(公告)日:2013-02-28

    申请号:US13696013

    申请日:2011-05-04

    IPC分类号: H04W72/04

    摘要: The present invention relates to a method for transmitting downlink hybrid automatic repeat request (HARQ) confirmation response information in a wireless communication system comprises the steps of: receiving, on an uplink data channel, a plurality of codewords from an uplink transmitter; generating items of confirmation response information for each of the plurality of codewords, in accordance with the results of decoding of the plurality of codewords; and transmitting each of the generated items of confirmation response information to the uplink transmitter on each of a plurality of physical HARQ indicator channel (PHICH) resources; wherein each of the plurality of PHICH resources can be allocated for the transmission of confirmation response information for each of the plurality of codewords, based on parameters having different values for each of the codewords.

    摘要翻译: 本发明涉及一种用于在无线通信系统中发送下行链路混合自动重传请求(HARQ)确认响应信息的方法,包括以下步骤:在上行链路数据信道上从上行链路发射机接收多个码字; 根据所述多个码字的解码结果,生成所述多个码字中的每一个的确认响应信息的项目; 在多个物理HARQ指示符信道(PHICH)资源中的每一个上向所述上行链路发射机发送所述生成的所述确认响应信息; 其中,可以基于每个码字的具有不同值的参数来分配多个PHICH资源中的每一个用于多个码字中的每一个的确认响应信息的传输。

    Method and apparatus for performing effective feedback in wireless communication system supporting multiple antennas
    20.
    发明申请
    Method and apparatus for performing effective feedback in 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执行有效反馈的方法和装置

    公开(公告)号:US20120076028A1

    公开(公告)日:2012-03-29

    申请号:US13248666

    申请日:2011-09-29

    IPC分类号: H04W24/04

    摘要: A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIs, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped.

    摘要翻译: 用于发送下行链路多载波传输的信道状态信息(CSI)的方法包括:生成包括秩指示符(RI),第一预编码矩阵索引(PMI),第二PMI和信道质量指示符 CQI),基于由第一和第二PMI的组合确定的预编码信息来计算CQI,当两个或更多个CSI在一个上行链路载波的一个上行链路子帧中彼此冲突时,确定CSI 基于优先级发送,并通过上行链路信道发送所确定的CSI。 如果包括RI或宽带第一PMI的CSI与包括宽带CQI或子带CQI的CSI相冲突,则包括宽带CQI或子带CQI的CSI具有低优先级并被丢弃。