SIGNAL TRANSMISSION METHOD AND SIGNAL RECEIVING METHOD IN A MULTI-INPUT MULTI-OUTPUT SYSTEM
    121.
    发明申请
    SIGNAL TRANSMISSION METHOD AND SIGNAL RECEIVING METHOD IN A MULTI-INPUT MULTI-OUTPUT SYSTEM 审中-公开
    多输入多输出系统中的信号传输方法和信号接收方法

    公开(公告)号:US20110216840A1

    公开(公告)日:2011-09-08

    申请号:US13127441

    申请日:2009-11-04

    IPC分类号: H04L27/00

    摘要: Disclosed is a signal transmission method comprising a feedback information receiving step of receiving a transmission rate and channel state information for transmission from a receiving end, a step of generating a signal to be transmitted by using a multi-antenna in accordance with the transmission rate, a step of performing a precoding on the generated signal by using the precoding matrix of the nested structure selected from a predetermined codebook in accordance with the transmission rate, and a step of transmitting the precoded signal. Said codebook includes a precoding matrix set in which a pre-coding matrix according to a first number of streams is not included in a precoding matrix according to a second number of streams greater than the first number of streams.

    摘要翻译: 公开了一种信号传输方法,包括:反馈信息接收步骤,从接收端接收传输速率和信道状态信息以进行传输;根据传输速率产生使用多天线发射的信号的步骤; 通过使用根据传输速率从预定码本中选择的嵌套结构的预编码矩阵,对生成的信号执行预编码的步骤,以及发送预编码信号的步骤。 所述码本包括预编码矩阵集合,其中根据第一数量的流的预编码矩阵不包括在预编码矩阵中,根据大于第一数量的流的第二数量的流。

    Method for transceiving a downlink reference signal, and base station and user equipment using same
    126.
    发明授权
    Method for transceiving a downlink reference signal, and base station and user equipment using same 有权
    用于收发下行链路参考信号的方法,以及使用其的基站和用户设备

    公开(公告)号:US08811321B2

    公开(公告)日:2014-08-19

    申请号:US13502109

    申请日:2010-10-13

    IPC分类号: H04W4/00

    摘要: The present invention relates to a wireless communication system. In detail, the present invention relates to a technique for transmitting a downlink reference signal in a wireless communication system in which one base station simultaneously transmits signals to a plurality of user equipment, and a control signal containing information on the allocation of a reference signal of specific user equipment and layer information for specifying the transport layer of the specific user equipment is transmitted to the specific user equipment, wherein the information on the allocation of the reference signal contains information for indicating whether or not a reference signal pattern, other than the reference signal pattern in which the reference signal of the specific user equipment is multiplexed, is transmitted in a predetermined resource region.

    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。 具体地说,本发明涉及一种用于在一个基站同时向多个用户设备发送信号的无线通信系统中发送下行链路参考信号的技术,以及控制信号,该控制信号包含有关基站的参考信号的分配的信息 用于指定特定用户设备的传输层的特定用户设备和层信息被发送到特定用户设备,其中关于参考信号的分配的信息包含用于指示除参考信号之外的参考信号模式 特定用户设备的参考信号被复用的信号模式在预定的资源区域中发送。

    Method and apparatus for transmitting channel status information efficiently in a multi-carrier wireless communication system
    128.
    发明授权
    Method and apparatus for transmitting channel status information efficiently in a multi-carrier wireless communication system 有权
    用于在多载波无线通信系统中有效地发送信道状态信息的方法和装置

    公开(公告)号:US08737253B2

    公开(公告)日:2014-05-27

    申请号:US13516085

    申请日:2010-12-17

    IPC分类号: H04W24/00 H04W72/04

    摘要: The present invention relates to a method for transmitting channel status information in a multi-carrier wireless communication system, according to one embodiment of the present invention, may include: receiving, at a receiving terminal, signals transmitted on N (N≧2) number of carriers from a transmitting terminal to the receiving terminal; determining, at the receiving terminal, channel status information for each of the N number of carriers from the received signals; and transmitting the channel status information for each of the N number of carriers on M (1≦M≦N) number of carriers from the receiving terminal to the transmitting terminal. The channel status information for each of the N number of carriers may be transmitted according to a channel status information reporting period for each of the N number of carriers and a channel status information reporting period offset.

    摘要翻译: 本发明涉及一种在多载波无线通信系统中发送信道状态信息的方法,根据本发明的一个实施例,可以包括:在接收终端接收以N(N≥2)个号码发送的信号 从发送终端到接收终端的载波; 在接收终端,从接收到的信号中确定N个载波中的每一个的信道状态信息; 并且从M(1≦̸ M&NlE; N)个载波的数量的载波的每个N个载波的信道状态信息从接收终端发送到发送终端。 可以根据N个载波中的每一个的信道状态信息报告周期和信道状态信息报告周期偏移来发送N个载波中的每一个的信道状态信息。

    Method of transmitting data using spatial multiplexing
    129.
    发明授权
    Method of transmitting data using spatial multiplexing 失效
    使用空间复用传输数据的方法

    公开(公告)号:US08711828B2

    公开(公告)日:2014-04-29

    申请号:US13058481

    申请日:2009-08-11

    IPC分类号: H04L27/26 H04B7/02 H04B7/06

    摘要: A data transmission method using spatial multiplexing is disclosed. The data transmission method using spatial multiplexing includes modulating at least one codeword to generate at least one modulation symbol, mapping the at least one modulation symbol to a layer whose number is determined according to its rank to generate a layer-mapped symbol stream, performing discrete Fourier transform (DFT) on the layer-mapped symbol stream to generate a frequency domain symbol stream, performing precoding on the frequency domain symbol stream, mapping the precoded frequency domain symbol stream to subcarriers, and then performing inverse fast Fourier transform (IFFT) on the precoded frequency domain symbol stream-mapped subcarriers to generate SC-FDMA symbols; and transmitting the SC-FDMA symbols by using a plurality of transmission antennas. Spatial multiplexing having a low PAPR can be possibly performed in an SC-FDMA system.

    摘要翻译: 公开了一种使用空间复用的数据传输方法。 使用空间复用的数据传输方法包括调制至少一个码字以产生至少一个调制符号,将至少一个调制符号映射到根据其等级确定其数量的层,以生成层映射符号流,执行离散 在层映射的符号流上进行傅里叶变换(DFT)以产生频域符号流,对频域符号流执行预编码,将预编码的频域符号流映射到子载波,然后执行快速傅立叶逆变换(IFFT), 预编码的频域符号流映射子载波以产生SC-FDMA符号; 以及通过使用多个发送天线发送SC-FDMA符号。 可以在SC-FDMA系统中执行具有低PAPR的空间复用。

    Apparatus and method for transmitting data in a multi-antenna system
    130.
    发明授权
    Apparatus and method for transmitting data in a multi-antenna system 失效
    用于在多天线系统中传输数据的装置和方法

    公开(公告)号:US08699470B2

    公开(公告)日:2014-04-15

    申请号:US13132220

    申请日:2009-10-07

    IPC分类号: H04B7/216

    CPC分类号: H04B7/0678

    摘要: A method and an apparatus for transmitting data in a multi-antenna system are provided. The method includes: selecting a plurality of modulation symbol blocks including at least one modulation symbol from total modulation symbols of a codeword, repeating the plurality of modulation symbol blocks in a time domain, combining the repeated plurality of modulation symbol blocks, and performing discrete Fourier transform (DFT) on the combined plurality of modulation symbol blocks.

    摘要翻译: 提供了一种用于在多天线系统中发送数据的方法和装置。 该方法包括:从码字的总调制符号中选择包括至少一个调制符号的多个调制符号块,在时域中重复多个调制符号块,组合重复的多个调制符号块,并执行离散傅里叶 对组合的多个调制符号块进行变换(DFT)。