METHOD FOR GENERATING DOWNLINK SIGNAL IN DOWNLINK MIMO SYSTEM
    82.
    发明申请
    METHOD FOR GENERATING DOWNLINK SIGNAL IN DOWNLINK MIMO SYSTEM 有权
    用于在下行链路MIMO系统中生成下行链路信号的方法

    公开(公告)号:US20110305289A1

    公开(公告)日:2011-12-15

    申请号:US13202563

    申请日:2010-02-22

    IPC分类号: H04L27/28

    CPC分类号: H04L1/0061 H04L1/06

    摘要: A method for generating a downlink signal in a downlink MIMO (Multiple Input Multiple Output) comprises the steps of: mapping at least one transport block to at least one codeword; mapping at least one layer to each codeword; classifying at least one layer mapped to each codeword into a certain number of layer groups and performing layer permutation by the layer groups; and generating an OFDM (Orthogonal Frequency-Division Multiplexing) symbol using a signal which is permutated by the layer groups. A CRC (Cyclic Redundancy Check) is attached by the layer groups.

    摘要翻译: 一种用于在下行链路MIMO(多输入多输出)中产生下行链路信号的方法包括以下步骤:将至少一个传输块映射到至少一个码字; 将至少一个层映射到每个码字; 将映射到每个码字的至少一个层分成一定数量的层组并且由层组执行层排列; 以及使用由层组排列的信号来生成OFDM(正交频分复用)符号。 层组附加CRC(循环冗余校验)。

    METHOD OF TRANSMITTING CODEBOOK INDEX IN WIRELESS COMMUNICATION SYSTEM
    83.
    发明申请
    METHOD OF TRANSMITTING CODEBOOK INDEX IN WIRELESS COMMUNICATION SYSTEM 失效
    在无线通信系统中传输代码簿索引的方法

    公开(公告)号:US20090323840A1

    公开(公告)日:2009-12-31

    申请号:US12448599

    申请日:2008-03-21

    IPC分类号: H04K1/10

    摘要: A method of transmitting a codebook index in a wireless communication system includes receiving a feedback index regarding an entity selected from a plurality of entities belonging to a feedback codebook, selecting a precoder from a precoding codebook using the feedback index, the precoding codebook comprising a plurality of precoders and transmitting a precoder index of the selected precoder. Flexibility can be given to codebook designs, and overhead due to the feedback of codebook indices can be reduced.

    摘要翻译: 一种在无线通信系统中发送码本索引的方法包括接收关于从属于反馈码本的多个实体中选择的实体的反馈索引,使用反馈索引从预编码码本中选择预编码器,预编码码本包括多个 并传送所选择的预编码器的预编码器索引。 可以对码本设计提供灵活性,并且可以减少由于码本索引的反馈而导致的开销。

    Method of transmitting of data and configuring a codebook in multi antenna system
    85.
    发明授权
    Method of transmitting of data and configuring a codebook in multi antenna system 失效
    在多天线系统中发送数据和配置码本的方法

    公开(公告)号:US08582679B2

    公开(公告)日:2013-11-12

    申请号:US12666777

    申请日:2008-06-24

    IPC分类号: H04L1/02

    CPC分类号: H04W52/346

    摘要: Methods of controlling a transmission power and configuring a codebook in a multi-antenna system to solve a transmission power unbalance between antennas are disclosed. The method of transmitting data in a multi-antenna system includes (A) transmitting one or more pilot signals within a first symbol region through a first antenna unit, and (B) transmitting one or more pilot signals within a second symbol region through a second antenna unit, wherein data within the first symbol region is transmitted through the second antenna unit, and data within the second symbol region is transmitted through the first antenna unit. According to the present invention, since a transmission power unbalance between antennas is solved, a transmission power can be uniformly assigned to each antenna and channel estimation can be easily performed. Moreover, a power amplifier having a uniform amplification range can be used and designed.

    摘要翻译: 公开了在多天线系统中控制发送功率和配置码本以解决天线之间的发送功率不平衡的方法。 在多天线系统中发送数据的方法包括:(A)通过第一天线单元在第一符号区域内传输一个或多个导频信号,以及(B)通过第二天线单元在第二符号区域内传输一个或多个导频信号 天线单元,其中通过第二天线单元发送第一符号区域内的数据,并且通过第一天线单元发送第二符号区域内的数据。 根据本发明,由于天线之间的发送功率不平衡被解决,所以可以将发送功率均匀地分配给每个天线,并且可以容易地进行信道估计。 此外,可以使用和设计具有均匀放大范围的功率放大器。

    Uplink precoding method in 4-Tx system
    86.
    发明授权
    Uplink precoding method in 4-Tx system 有权
    4-Tx系统中的上行预编码方法

    公开(公告)号:US08391393B2

    公开(公告)日:2013-03-05

    申请号:US12715073

    申请日:2010-03-01

    IPC分类号: H04B7/02

    摘要: A method for a user equipment to precode and transmit an uplink signal efficiently in a 4-antenna system and a method for a base station to receive the transmitted signal efficiently are disclosed. Four antennas of a user equipment can be grouped by a 2-antenna unit. In consideration of this antenna group, it is able to perform precoding using antenna selection/DFT matrix of the antenna group unit. Moreover, a rank-3 codebook can be configured to include a precoding matrix of a type in consideration of power balance per antenna and a precoding matrix including one non-zero component only in one row for maintaining a good CM property.

    摘要翻译: 公开了一种用于在4天线系统中有效地预编码和发送上行链路信号的用户设备的方法以及用于基站有效地接收所发送的信号的方法。 用户设备的四个天线可以通过2天线单元分组。 考虑到该天线组,能够使用天线组单元的天线选择/ DFT矩阵进行预编码。 此外,等级3码本可以被配置为包括考虑每个天线的功率平衡的类型的预编码矩阵和仅在一行中包括一个非零分量的预编码矩阵以维持良好的CM属性。

    METHOD AND DEVICE FOR EFFICIENTLY TRANSMITTING PRECODED REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM
    87.
    发明申请
    METHOD AND DEVICE FOR EFFICIENTLY TRANSMITTING PRECODED REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM 失效
    在无线电通信系统中有效发送预编码参考信号的方法和设备

    公开(公告)号:US20120113934A1

    公开(公告)日:2012-05-10

    申请号:US13375209

    申请日:2010-05-31

    IPC分类号: H04W4/00 H04W72/04

    摘要: The present invention relates to a radio communication system and more particularly, a method and a device for efficiently transmitting precoded reference signals. The method for transmitting reference signals in multiple antenna transmission, according to one embodiment of the present invention, comprises the steps of: determining a precoding vector for each of M layers (M≧3; M is a natural number); precoding a reference signal for each of the M layers in accordance with said precoding vector; multiplexing the precoded reference signals for N layers (N

    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,涉及一种有效地发送预编码参考信号的方法和装置。 根据本发明的一个实施例,用于在多天线传输中发送参考信号的方法包括以下步骤:确定每个M层的预编码矢量(M≥3; M是自然数); 根据所述预编码向量预编码每个M层的参考信号; 使用N个码对M层的预编码参考信号中的N层的预编码参考信号进行复用(N

    METHOD OF TRANSMITTING PRECODING INFORMATION IN MULTIPLE ANTENNA SYSTEM
    89.
    发明申请
    METHOD OF TRANSMITTING PRECODING INFORMATION IN MULTIPLE ANTENNA SYSTEM 有权
    在多天线系统中发送预测信息的方法

    公开(公告)号:US20100310000A1

    公开(公告)日:2010-12-09

    申请号:US12864656

    申请日:2009-01-29

    IPC分类号: H04L27/28 H04L27/00

    摘要: A method of transmitting precoding information in a multiple antenna system includes selecting M subbands from a plurality of subbands constituting a whole frequency band in a descending order of a channel quality indicator (CQI), where M is an integer satisfying M>0, and transmitting a first precoding matrix indicator (PMI) for the M subbands and a second PMI for a remaining band, wherein the first PMI is a PMI of a codebook selected from a first codebook set including a plurality of codebooks and the second PMI is a PMI of a codebook selected from a second codebook set including a part of the plurality of codebooks of the first codebook set. Accordingly, precoding information can be effectively transmitted by separately preparing a codebook for a best band and a codebook for a non-selected band.

    摘要翻译: 在多天线系统中发送预编码信息的方法包括:从信道质量指示符(CQI)的降序中选择构成整个频带的多个子带的M个子带,其中,M是满足M> 0的整数,并且发送 用于所述M个子带的第一预编码矩阵指示符(PMI)和用于剩余频带的第二PMI,其中所述第一PMI是从包括多个码本的第一码本集中选择的码本的PMI,并且所述第二PMI是 从包括第一码本集合的多个码本的一部分的第二码本集中选择的码本。 因此,可以通过单独准备用于最佳频带的码本和非选择频带的码本来有效地发送预编码信息。

    TECHNIQUE FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS
    90.
    发明申请
    TECHNIQUE FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS 有权
    发送和接收下行链路参考信号的技术

    公开(公告)号:US20100195615A1

    公开(公告)日:2010-08-05

    申请号:US12698869

    申请日:2010-02-02

    IPC分类号: H04W72/04

    摘要: A technique for receiving and transmitting downlink reference signals is disclosed. When transmitting downlink data demodulation reference signals (DMRS) (or reference signals for downlink data demodulation) by using two or more layers, the DMRS of each layer may be multiplexed by using a code division multiplexing method and then transmitted. The DMRS for each of the two or more layers may be used for one user equipment or for two or more user equipments. And, downlink control signals for transmitting and receiving such DMRS may be configured to have the same format regardless of a single-user mode (or SU-MIMO mode) or a multi-user mode (or MU-MIMO mode), thereby being used.

    摘要翻译: 公开了一种用于接收和发送下行链路参考信号的技术。 当通过使用两层或更多层来发送下行链路数据解调参考信号(DMRS)(或下行链路数据解调的参考信号)时,可以通过使用码分复用方法来复用每层的DMRS,然后发送。 两层或更多层中的每一层的DMRS可以用于一个用户设备或两个或更多个用户设备。 并且,无论单用户模式(或SU-MIMO模式)还是多用户模式(或MU-MIMO模式),都可以将用于发送和接收这样的DMRS的下行链路控制信号配置为具有相同的格式,从而被使用 。