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    Method and apparatus for transmitting control information in a wireless communication system
    3.
    发明授权
    Method and apparatus for transmitting control information in a wireless communication system 有权

    公开(公告)号：US09723594B2

    公开(公告)日：2017-08-01

    申请号：US14481648

    申请日：2014-09-09

    申请人： LG Electronics Inc.

    发明人： Seunghee Han ,  Hyunwoo Lee

    IPC分类号： H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04B7/06

    CPC分类号： H04W72/0406 ,  H04B7/0678 ,  H04B7/0684 ,  H04L5/0019 ,  H04L5/0053 ,  H04L27/2636

    摘要： The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal transmits control information in a wireless communication system, and to an apparatus for the method, wherein the method comprises the following steps: spreading a control information block corresponding to one single carrier frequency division multiplexing (SC-FDMA) symbol, such that the spread control information blocks correspond to a plurality of first SC-FDMA symbols; performing a discrete Fourier transform (DFT) precoding process on the spread control information blocks on an SC-FDMA symbol basis; transmitting, in the plurality of first SC-FDMA symbols in a subframe, the DFT precoded control information blocks; and transmitting, in a plurality of second SC-FDMA symbols in the subframe, a reference signal sequence, wherein an orthogonal code is applied to the plurality of second SC-FDMA symbols in a time domain.

    Radio base station apparatus, user terminal, radio communication system and radio communication method
    5.
    发明授权
    Radio base station apparatus, user terminal, radio communication system and radio communication method 有权
    无线基站装置，用户终端，无线通信系统和无线通信方式

    公开(公告)号：US09380570B2

    公开(公告)日：2016-06-28

    申请号：US14386244

    申请日：2013-03-13

    申请人： NTT DOCOMO, INC.

    发明人： Kazuaki Takeda ,  Satoshi Nagata ,  Yoshihisa Kishiyama

    IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04W48/00 ,  H04B7/06 ,  H04B7/04 ,  H04B7/02 ,  H04B7/08 ,  H04W88/08

    CPC分类号： H04W72/042 ,  H04B7/026 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0678 ,  H04B7/068 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/0865 ,  H04L1/00 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0053 ,  H04W4/00 ,  H04W48/00 ,  H04W72/04 ,  H04W88/08

    摘要： A radio base station apparatus has a multiplication section that multiplies downlink control information allocated to an extended downlink control channel resource region in a resource block, by a user terminal-specific weight; and a reporting section that reports one group, among a plurality of groups that are configured by selecting different antenna ports from a plurality of antenna ports corresponding to the number of transmission layers of a demodulation reference signal, to the user terminal, and in each group, extended downlink control channel resource regions in the resource block and antenna ports to constitute the group are associated with each other; and the multiplication section multiplies a demodulation reference signal corresponding to an antenna port in the one group that is associated with the extended downlink control channel resource regions where the downlink control information is allocated, by the weight.

    摘要翻译： 无线基站装置具有乘法部分，用于将资源块中分配给扩展下行链路控制信道资源区域的下行链路控制信息乘以用户终端特定权重; 以及报告部，其将通过从对应于解调参考信号的发送层数的多个天线端口中选择不同的天线端口配置的多个组中的一组报告给用户终端，并且在每个组中 资源块中的扩展下行链路控制信道资源区域和构成该组的天线端口相互关联; 并且乘法部分将与分配了下行链路控制信息的扩展下行链路控制信道资源区域相关联的一个组中的天线端口对应的解调参考信号乘以权重。

    Method and apparatus for channel estimation and detection in MIMO system
    7.
    发明授权
    Method and apparatus for channel estimation and detection in MIMO system 有权
    MIMO系统中信道估计和检测的方法和装置

    公开(公告)号：US09294244B2

    公开(公告)日：2016-03-22

    申请号：US14520465

    申请日：2014-10-22

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Yang Hu ,  David Astely ,  Xinghua Song ,  Jianfeng Wang

    IPC分类号： H04L1/02 ,  H04L5/00 ,  H04B7/04 ,  H04L25/02

    CPC分类号： H04L25/0226 ,  H04B7/0413 ,  H04B7/0678 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/1469 ,  H04L25/0204 ,  H04L25/0224

    摘要： The present invention provides a method for performing channel estimation and detection in a Multiple-Input-Multiple-Output (MIMO) system, including: generating a demodulation reference signal, DM-RS, pattern for an extended cyclic prefix (CP); and estimating and detecting channel performance based on the generated DM-RS signal pattern. The DM-RS pattern supports from rank 1 to rank 8 patterns for 8 layer transmission. A transmitter, a receiver and a system thereof are also provided. The solution of the present invention improves channel estimation accuracy, saves channel estimation implementation and implementation complexity at terminals.

    摘要翻译： 本发明提供一种用于在多输入多输出（MIMO）系统中执行信道估计和检测的方法，包括：产生用于扩展循环前缀（CP）的解调参考信号DM-RS，模式; 以及基于所生成的DM-RS信号模式来估计和检测信道性能。 DM-RS模式支持8层传输从1级到8级模式。 还提供发射器，接收器及其系统。 本发明的解决方案提高了信道估计精度，节省了终端的信道估计实现和实现复杂度。

    METHOD AND APPARATUS FOR PILOT AND DATA MULTIPLEXING IN A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    METHOD AND APPARATUS FOR PILOT AND DATA MULTIPLEXING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的引导和数据多路复用的方法和装置

    公开(公告)号：US20160020865A1

    公开(公告)日：2016-01-21

    申请号：US14869028

    申请日：2015-09-29

    申请人： QUALCOMM Incorporated

    发明人： Kim Byoung-Hoon ,  Yongbin Wei ,  Amir Dabbagh

    IPC分类号： H04J13/00 ,  H04L27/26 ,  H04J3/00 ,  H04L5/06 ,  H04B17/309 ,  H04B7/04 ,  H04L5/00

    CPC分类号： H04J13/0003 ,  H04B7/0421 ,  H04B7/0671 ,  H04B7/0678 ,  H04B7/068 ,  H04B7/0697 ,  H04B17/309 ,  H04B2201/70701 ,  H04J3/00 ,  H04J13/0022 ,  H04J13/0059 ,  H04J13/0062 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0051 ,  H04L5/06 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2601 ,  H04L27/2613 ,  H04L27/2636

    摘要： Techniques for multiplexing pilots in a wireless transmission are described. In one aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas, with each pilot sequence comprising pilot symbols sent in the time domain on a different set of subcarriers. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In another aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas based on frequency-domain code division multiplexing (FD-CDM) of a Chu sequence defined by a transmitter-specific value. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In yet another aspect, a transmitter station generates multiple pilot transmissions for multiple transmit antennas based on a first multiplexing scheme and generates multiple data transmissions based on a second multiplexing scheme that is different from the first multiplexing scheme.

    摘要翻译： 描述用于在无线传输中复用导频的技术。 在一个方面，发射机站为多个发射天线生成多个导频序列，每个导频序列包括在不同子载波集上的时域中发送的导频符号。 发射台还根据导频序列进一步为发射天线产生多个导频传输。 在另一方面，发射机站基于由发射机特定值定义的楚序列的频域码分复用（FD-CDM），为多个发射天线生成多个导频序列。 发射台还根据导频序列进一步为发射天线产生多个导频传输。 在另一方面，发射机站基于第一复用方案为多个发射天线生成多个导频传输，并且基于与第一复用方案不同的第二复用方案来生成多个数据传输。

    Method and apparatus for estimating a channel quality indicator (CQI) for multiple input multiple output (MIMO) systems
    10.
    发明授权
    Method and apparatus for estimating a channel quality indicator (CQI) for multiple input multiple output (MIMO) systems 有权
    用于估计多输入多输出（MIMO）系统的信道质量指示符（CQI）的方法和装置

    公开(公告)号：US09148207B1

    公开(公告)日：2015-09-29

    申请号：US14157485

    申请日：2014-01-16

    申请人： Marvell International Ltd.

    发明人： Yakun Sun ,  Adina Matache ,  Jungwon Lee

    IPC分类号： H04W4/00 ,  H04B7/04

    CPC分类号： H04B7/0456 ,  H04B7/0413 ,  H04B7/0632 ,  H04B7/066 ,  H04B7/0671 ,  H04B7/0673 ,  H04B7/0678 ,  H04B7/068 ,  H04B7/0691 ,  H04B17/336 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/0036 ,  H04L1/06 ,  H04L5/0023

    摘要： Systems and methods are provided for determining a channel quality indicator (CQI) in a transmission system associated with a diversity transmission scheme. A plurality of independent diversity branches are identified in the diversity transmission scheme. Each one of the independent diversity branches may correspond to a different portion of the effective channel and may include any suitable combination of frequency, time, and/or spatial components of the effective channel or of any wired or wireless paths or combinations of the same. An effective Signal-to-Noise Ratio (SNR) value is computed for each one of the identified independent diversity branches. The computed effective SNR values are combined for the identified independent diversity branches to generate a CQI value.

    摘要翻译： 提供了用于确定与分集传输方案相关联的传输系统中的信道质量指示符（CQI）的系统和方法。 在分集传输方案中识别出多个独立分集分支。 独立分集分支中的每一个可以对应于有效信道的不同部分，并且可以包括有效信道或任何有线或无线路径或其组合的频率，时间和/或空间分量的任何合适的组合。 为所识别的独立分集分支中的每一个计算有效的信噪比（SNR）值。 为所识别的独立分集分支组合计算出的有效SNR值以产生CQI值。