Method for indicating precoding matrix indicator in uplink MIMO system with based on SC-FDMA
    52.
    发明授权
    Method for indicating precoding matrix indicator in uplink MIMO system with based on SC-FDMA 有权
    基于SC-FDMA的上行MIMO系统中预编码矩阵指示符的方法

    公开(公告)号:US09178595B2

    公开(公告)日:2015-11-03

    申请号:US13148886

    申请日:2010-02-19

    IPC分类号: H04B7/216 H04B7/06 H04L5/00

    CPC分类号: H04B7/0639 H04L5/0039

    摘要: A method of transmitting PMI (precoding matrix indicator) information in an uplink MIMO system is disclosed. The present invention includes the steps of receiving channel information from a user equipment and transmitting information on a resource allocated to the user equipment in uplink transmission and PMI information indicating a precoding matrix to apply to a region of the resource among a plurality of precoding matrices to the user equipment based on the received channel information, wherein the resource allocated to the user equipment is allocated by a bundle unit of a prescribed number of subcarriers, wherein each of a plurality of the precoding matrices are applied to regions generated from dividing a whole frequency band into a prescribed number of regions, respectively, and wherein the precoding matrix applied to the resource among a plurality of the precoding matrices has a maximum area resulting from overlapping a frequency band occupied by the allocated resource with a frequency band having the precoding matrix applied thereto.

    摘要翻译: 公开了一种在上行链路MIMO系统中发送PMI(预编码矩阵指示符)信息的方法。 本发明包括以下步骤:从用户设备接收信道信息,并在上行链路传输中发送关于分配给用户设备的资源的信息,以及指示预编码矩阵的PMI信息,以应用于多个预编码矩阵中的资源区域,以 所述用户设备基于所接收的信道信息,其中,分配给所述用户设备的资源由规定数量的副载波的分组单元分配,其中,所述多个预编码矩阵中的每一个被应用于从分频整个频率 并且其中在多个预编码矩阵中应用于资源的预编码矩阵具有由所分配的资源占据的频带与具有预编码矩阵的频带重叠而产生的最大区域 到此。

    Method for performing retransmission in MIMO wireless communication system and apparatus therefor
    53.
    发明授权
    Method for performing retransmission in MIMO wireless communication system and apparatus therefor 有权
    MIMO无线通信系统中的重传方法及其装置

    公开(公告)号:US09042314B2

    公开(公告)日:2015-05-26

    申请号:US13386015

    申请日:2010-08-02

    摘要: A method for performing retransmission at a user equipment of a MIMO wireless communication system is disclosed. The method comprises transmitting multiple transport blocks to a base station for a transmission unit time in accordance with uplink grant information, which includes a first new data indicator; receiving ACK/NACK (Acknowledgement/Negative-ACK) responses corresponding to the respective transport blocks and uplink grant information, which includes a second new data indicator, from the base station; and performing new transmission or retransmission for the multiple transport blocks in one transport block unit for a transmission unit time in accordance with the ACK/NACK responses and the second new data indicator, if transport rank is reduced to 1.

    摘要翻译: 公开了一种在MIMO无线通信系统的用户设备进行重传的方法。 该方法包括:根据包括第一新数据指示符的上行授权信息向基站发送多个传输块用于传输单元时间; 从基站接收对应于相应传输块的ACK / NACK(确认/否定ACK)响应和包括第二新数据指示符的上行链路许可信息; 并且如果传输等级减少到1,则根据ACK / NACK响应和第二新数据指示符,针对传输单元时间的一个传输块单元中的多个传输块执行新的传输或重传。

    Method whereby a channel quality indicator is fed back by a terminal in a multiple-antenna wireless communication system, and a device therefor
    57.
    发明授权
    Method whereby a channel quality indicator is fed back by a terminal in a multiple-antenna wireless communication system, and a device therefor 有权
    在多天线无线通信系统中由终端反馈信道质量指示符的方法及其装置

    公开(公告)号:US08634319B2

    公开(公告)日:2014-01-21

    申请号:US13139484

    申请日:2010-09-27

    IPC分类号: H04L12/26

    摘要: Disclosed is a method whereby a channel quality indicator is fed back by a terminal in a multiple-antenna wireless communication system. More specifically, the method comprises the steps of: receiving reference signals corresponding to a plurality of data streams from a base station; using the reference signals to calculate a channel quality indicator; and transmitting the calculated channel quality indicator to the base station; and, in the step in which the channel quality indicator is calculated, the channel quality indicator is calculated under the assumption that at least one of the reference signals has been transmitted using wither the spatial-multiplexing technique or the transmit diversity technique, depending on the feedback setting of the terminal.

    摘要翻译: 公开了一种在多天线无线通信系统中由终端反馈信道质量指示符的方法。 更具体地说,该方法包括以下步骤:从基站接收与多个数据流对应的参考信号; 使用参考信号来计算信道质量指标; 以及将所计算的信道质量指示符发送到所述基站; 并且在计算信道质量指示符的步骤中,在假设已经使用空间复用技术或发射分集技术发送了至少一个参考信号的情况下,根据所述信道质量指示符来计算信道质量指示符 终端的反馈设置。

    Method for transmitting downlink reference signals in a multi-antenna wireless communication system
    58.
    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

    IPC分类号: H04B7/216

    摘要: 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.

    摘要翻译: 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。

    METHOD FOR INDICATING PRECODING MATRIX INDICATOR IN UPLINK MIMO SYSTEM WITH BASED ON SC-FDMA
    60.
    发明申请
    METHOD FOR INDICATING PRECODING MATRIX INDICATOR IN UPLINK MIMO SYSTEM WITH BASED ON SC-FDMA 有权
    基于SC-FDMA的上行MIMO系统中预测矩阵指示符的方法

    公开(公告)号:US20120082102A1

    公开(公告)日:2012-04-05

    申请号:US13148886

    申请日:2010-02-19

    IPC分类号: H04W74/04 H04W72/04

    CPC分类号: H04B7/0639 H04L5/0039

    摘要: A method of transmitting PMI (precoding matrix indicator) information in an uplink MIMO system is disclosed. The present invention includes the steps of receiving channel information from a user equipment and transmitting information on a resource allocated to the user equipment in uplink transmission and PMI information indicating a precoding matrix to apply to a region of the resource among a plurality of precoding matrices to the user equipment based on the received channel information, wherein the resource allocated to the user equipment is allocated by a bundle unit of a prescribed number of subcarriers, wherein each of a plurality of the precoding matrices are applied to regions generated from dividing a whole frequency band into a prescribed number of regions, respectively, and wherein the precoding matrix applied to the resource among a plurality of the precoding matrices has a maximum area resulting from overlapping a frequency band occupied by the allocated resource with a frequency band having the precoding matrix applied thereto.

    摘要翻译: 公开了一种在上行链路MIMO系统中发送PMI(预编码矩阵指示符)信息的方法。 本发明包括以下步骤:从用户设备接收信道信息,并在上行链路传输中发送关于分配给用户设备的资源的信息,以及指示预编码矩阵的PMI信息,以应用于多个预编码矩阵中的资源区域,以 所述用户设备基于所接收的信道信息,其中,分配给所述用户设备的资源由规定数量的副载波的分组单元分配,其中,所述多个预编码矩阵中的每一个被应用于从分频整个频率 并且其中在多个预编码矩阵中应用于资源的预编码矩阵具有由所分配的资源占据的频带与具有预编码矩阵的频带重叠而产生的最大区域 到此。