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    Method for transmitting uplink control information, UE and base station
    1.
    发明授权
    Method for transmitting uplink control information, UE and base station 有权

    公开(公告)号：US10812245B2

    公开(公告)日：2020-10-20

    申请号：US16276199

    申请日：2019-02-14

    Applicant: FUJITSU LIMITED

    Inventor： Yi Wang ,  Lei Zhang

    IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18

    Abstract: A communication apparatus, including: a controller configured to control to map an uplink control information (UCI) onto a radio resource wherein one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal; and a transmitter configured to transmit the UCI via a Physical Channel, wherein, the controller control to map a first UCI onto Orthogonal Frequency Division Multiplexing (OFDM) symbols, in a mapping manner of time domain first, and wherein, when the sub-frame where the UCI is located contains one uplink reference signal, the OFDM symbols are close to the uplink reference signal.

    Sounding reference symbol sending method, base station, and user equipment
    4.
    发明授权
    Sounding reference symbol sending method, base station, and user equipment 有权
    探测参考符号发送方法，基站和用户设备

    公开(公告)号：US09445398B2

    公开(公告)日：2016-09-13

    申请号：US14146441

    申请日：2014-01-02

    Applicant: FUJITSU LIMITED

    Inventor： Yi Wang ,  Yuantao Zhang ,  Hua Zhou

    IPC: H04W72/04 ,  H04L5/00 ,  H04B7/02

    CPC classification number: H04W72/04 ,  H04B7/024 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0094

    Abstract: A method for transmitting sounding reference symbol, a base station and user equipment. The method comprises: configuring, by a base station, user equipment of a CoMP transmission mode, with parameter configuration information for transmitting SRS, the parameter configuration information including a frequency comb of the SRS and one or more pieces of the following information: cyclic shift, root sequence information, power control information, and transmission duration information, of the SRS; and transmitting the parameter configuration information to the user equipment by the base station, such that the user equipment transmits the SRS to the base station according to the parameter configuration information. The method is simple and flexible, efficiently uses limited SRS resources, and solves the problem in the prior art.

    Abstract translation: 用于发送探测参考符号，基站和用户设备的方法。 该方法包括：通过基站将CoMP传输模式的用户设备配置为用于发送SRS的参数配置信息，包括SRS的频率梳的参数配置信息和一个或多个以下信息：循环移位 ，根序列信息，功率控制信息和传输持续时间信息; 以及由所述基站向所述用户设备发送所述参数配置信息，使得所述用户设备根据所述参数配置信息向所述基站发送所述SRS。 该方法简单灵活，有效地利用有限的SRS资源，解决了现有技术中的问题。

    Code generating apparatus, reference signal generating apparatus, and methods thereof
    6.
    发明授权
    Code generating apparatus, reference signal generating apparatus, and methods thereof 有权
    代码生成装置，参考信号生成装置及其方法

    公开(公告)号：US08798115B2

    公开(公告)日：2014-08-05

    申请号：US14087756

    申请日：2013-11-22

    Applicant: Fujitsu Limited

    Inventor： Yi Wang ,  Yuantao Zhang ,  Hua Zhou ,  Jianming Wu

    IPC: H04B1/00

    CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

    Abstract: A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively.

    Abstract translation: 代码生成装置，解调参考信号生成装置及其方法。 解调参考信号发生器包括：生成用于第一资源块的RS的非相关序列; 通过使用第一组代码将用于RS的非相关序列中的元素的扩展频谱映射到第一资源块的第一频率资源; 通过使用第二组代码，RS的非相关序列中的元素的第二扩展频谱被映射到第一资源块的第二频率资源; 第一和第二频率资源是在第一资源块中用于RS传输的频率资源元素中的相邻频率资源，并且第一和第二组代码是彼此列的反射镜; 以及将频谱扩展元件分别映射到第一和第二频率资源。

    Downlink precoding method and data interacting method for coordinated multi-point transmission system and apparatus
    9.
    发明授权
    Downlink precoding method and data interacting method for coordinated multi-point transmission system and apparatus 有权

    公开(公告)号：US09374138B2

    公开(公告)日：2016-06-21

    申请号：US14139206

    申请日：2013-12-23

    Applicant: FUJITSU LIMITED

    Inventor： Yueqiao Xu ,  Hua Zhou ,  Yi Wang ,  Jianming Wu

    IPC: H04B7/24 ,  H04B7/02 ,  H04W24/10 ,  H04B7/06

    Abstract: Embodiments of the present invention provide a downlink precoding method and data interacting method for coordinated multi-point transmission system and apparatus. The downlink precoding method includes: acquiring a precoding matrix indicator by a cooperating point and determining the precoding matrix of the cooperating point according to the precoding matrix indicator, the number of columns of the precoding matrix of the cooperating point being less than that of columns of the precoding matrix of a serving point; and performing, by the cooperating point, downlink precoding to the data to be transmitted according to the determined precoding matrix of the cooperating point. With the methods and apparatuses of the embodiments of the present invention, as the cooperating points participate only in the transmission of data of part of layers in the coordinated scenarios, the complexity of calculation and the feedback overhead are lowered in the UE end.

    Data transmission method and system, transmitter, and receiver
    10.
    发明授权
    Data transmission method and system, transmitter, and receiver 有权
    数据传输方式和系统，发射机和接收机

    公开(公告)号：US09344160B2

    公开(公告)日：2016-05-17

    申请号：US14197907

    申请日：2014-03-05

    Applicant: FUJITSU LIMITED

    Inventor： Jian Zhang ,  Yuantao Zhang ,  Yi Zhang ,  Yi Wang ,  Hua Zhou

    IPC: H04K1/10 ,  H04L27/28 ,  H04B7/02 ,  H04B7/04 ,  H04L25/02 ,  H04B7/06

    CPC classification number: H04B7/024 ,  H04B7/0473 ,  H04B7/0639 ,  H04L25/0204

    Abstract: A data transmission method and system, transmitter and receiver. The method includes: mapping, by a transmitter, a plurality of data streams to a plurality of antennas of the transmitter by using precoding matrices and transmitting the plurality of data streams to a receiver via the plurality of antennas, wherein the transmitter selects the precoding matrices by taking a resource block as a granularity. With the embodiments of the present invention, the transmitter may transmit data streams to the receiver by using the precoding matrices W, and selects the precoding matrices W by taking a resource block (RB) as a granularity, so as to support DM-RS demodulation, and the receiver is not needed to perform PMI feedback, which is also applicable to a scenario where user feedback is not supported or PMI feedback is inaccurate, thereby achieving open-loop spatial multiplexing CoMP transmission.

    Abstract translation: 数据传输方法和系统，发射机和接收机。 该方法包括：通过使用预编码矩阵将发送器将多个数据流映射到发射机的多个天线，并且经由多个天线将多个数据流发送到接收机，其中发射机选择预编码矩阵 通过将资源块作为粒度。 利用本发明的实施例，发射机可以通过使用预编码矩阵W将数据流发送到接收机，并且通过以资源块（RB）作为粒度来选择预编码矩阵W，以便支持DM-RS解调 ，并且不需要接收机来执行PMI反馈，其也适用于不支持用户反馈或PMI反馈不准确的场景，从而实现开环空间复用CoMP传输。

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