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    RADIO TRANSMISSION DEVICE, RADIO RECEPTION DEVICE, AND PRECODING METHOD
    2.
    发明申请
    RADIO TRANSMISSION DEVICE, RADIO RECEPTION DEVICE, AND PRECODING METHOD 审中-公开
    无线电传输装置，无线电接收装置和预编方法

    公开(公告)号：US20100189192A1

    公开(公告)日：2010-07-29

    申请号：US12666274

    申请日：2008-06-26

    Applicant: Kenichi Miyoshi ,  Shinsuke Takaoka ,  Fumiyuki Adachi ,  Hiromichi Tomeea ,  Kazuki Takeda

    Inventor： Kenichi Miyoshi ,  Shinsuke Takaoka ,  Fumiyuki Adachi ,  Hiromichi Tomeea ,  Kazuki Takeda

    IPC: H04L27/00 ,  H04L27/20

    CPC classification number: H04L1/0005 ,  H04L1/0011 ,  H04L1/0038 ,  H04L1/08 ,  H04L25/03159 ,  H04L25/03343 ,  H04L2025/0342 ,  Y02D50/10

    Abstract: Provided is a radio transmission device which can improve an error ratio characteristic in a radio communication system which performs precoding. There are two types of modulation methods: a first modulation method having a small error ratio improvement width by precoding and a second modulation method having a large error ratio improvement width by precoding. In the radio transmission device (100), a modulation unit (101) modulates transmission data by the second modulation method so as to generate a symbol, a copying unit (102) copies the symbol so as to generate a plurality of symbols, and a precoding unit (105) performs precoding of the symbols.

    Abstract translation: 提供一种能够提高执行预编码的无线通信系统中的误差率特性的无线发送装置。 有两种类型的调制方法：通过预编码具有小的误差比改善宽度的第一调制方法和通过预编码具有大误差比改善宽度的第二调制方法。 在无线发送装置（100）中，调制部（101）通过第二调制方式对发送数据进行调制，生成符号，复制单元（102）复制符号，生成多个符号， 预编码单元（105）执行符号的预编码。

    Wireless Transmission Apparatus, Wireless Reception Apparatus and Block Construction Method
    3.
    发明申请
    Wireless Transmission Apparatus, Wireless Reception Apparatus and Block Construction Method 审中-公开
    无线传输装置，无线接收装置和块构造方法

    公开(公告)号：US20100135432A1

    公开(公告)日：2010-06-03

    申请号：US12596344

    申请日：2008-04-18

    Applicant: Kenichi Miyoshi ,  Shinsuke Takaoka ,  Fumiyuki Adachi ,  Hiromichi Tomeba ,  Kazuki Takeda

    Inventor： Kenichi Miyoshi ,  Shinsuke Takaoka ,  Fumiyuki Adachi ,  Hiromichi Tomeba ,  Kazuki Takeda

    IPC: H04L27/00

    CPC classification number: H04L27/265 ,  H04L25/0242 ,  H04L25/03159 ,  H04L25/03343 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2627

    Abstract: A wireless transmission apparatus in which degradation of error-rate characteristics can be avoided without decreasing a data rate in the mobile communication using a pre-coding together with a FDE. In this apparatus, a modulation unit (102) modulates a first data among transmission data with a first modulation method and generates a first symbol string, a modulation unit (103) modulates a second data among the transmission data with a second modulation method whose modulation multi-level number is larger than that of the first modulation method and generates a second symbol string, and a reproduction unit (104) reproduces the second symbol string and obtains a plurality of second symbol strings. An arrangement unit (105) arranges the plurality of the second symbol strings to both sides of the first symbol string and a pre-coding unit (106) performs a pre-coding to each symbol string after arrangement.

    Abstract translation: 可以避免使用与FDE一起进行预编码的移动通信中的数据速率降低而能够避免误码率特性的劣化的无线发送装置。 在该装置中，调制部（102）利用第一调制方式对发送数据中的第一数据进行调制，生成第一符号串，调制部（103）利用第二调制方式对发送数据中的第二数据进行调制， 多级数大于第一调制方式，并产生第二符号串，并且再现单元（104）再现第二符号串并获得多个第二符号串。 布置单元（105）将多个第二符号串布置到第一符号串的两侧，并且预编码单元（106）在布置之后对每个符号串执行预编码。

    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD
    4.
    发明申请
    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20190116562A1

    公开(公告)日：2019-04-18

    申请号：US16202552

    申请日：2018-11-28

    Applicant: Kazuki Takeda ,  Liu Liu ,  Lihui Wang ,  Huiling Jiang

    Inventor： Kazuki Takeda ,  Liu Liu ,  Lihui Wang ,  Huiling Jiang

    IPC: H04W52/36 ,  H04W8/24 ,  H04W52/34 ,  H04W72/04

    Abstract: The present invention relates to reducing the decrease of uplink throughput in the event a user terminal connects with a plurality of radio base stations. In one aspect of the claimed invention, a user terminal includes a transmitter that performs transmission in a first cell group (CG) and a second CG, and a processor that, if the transmitter reports user terminal capability information indicating that the user terminal is capable of sharing transmission power dynamically and if transmission in the first CG overlaps in time with transmission in the second CG, scales transmission power of the second CG so that total transmission power of the transmission in the first CG and the transmission in the second CG does not exceed maximum allowable power.

    TERMINAL APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND RECEPTION METHOD
    5.
    发明申请
    TERMINAL APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND RECEPTION METHOD 有权
    终端装置，基站装置，传输方法和接收方法

    公开(公告)号：US20140050182A1

    公开(公告)日：2014-02-20

    申请号：US14113651

    申请日：2012-06-29

    Applicant: Takashi Iwai ,  Daichi Imamura ,  Masayuki Hoshino ,  Akihiko Nishio ,  Takashi Tamura ,  Kazuki Takeda

    Inventor： Takashi Iwai ,  Daichi Imamura ,  Masayuki Hoshino ,  Akihiko Nishio ,  Takashi Tamura ,  Kazuki Takeda

    IPC: H04W52/24 ,  H04L5/00

    CPC classification number: H04W52/246 ,  H04B7/024 ,  H04L1/0077 ,  H04L5/0048 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/244 ,  H04W52/325 ,  H04W52/40 ,  H04W88/02

    Abstract: Provided is a terminal apparatus in which, a transmission control unit (204) controls the transmission power of a sounding reference signal (SRS) by use of an offset value relative to the transmission power of a data signal, and a transmission unit (206) transmits the SRS by use of the transmission power as controlled. If a subframe to be used for transmitting the SRS is a predetermined subframe, the transmission control unit (204) uses a first offset value to control the transmission power of the SRS. Otherwise, the transmission control unit (204) uses a second offset value to control the transmission power of the SRS. The second offset value is an offset value that has been established so as to be transmitted to the serving cell of the terminal (200), and the first offset value is greater than the second offset value.

    Abstract translation: 提供一种终端装置，其中发送控制单元（204）通过使用相对于数据信号的发送功率的偏移值来控制探测参考信号（SRS）的发送功率，以及发送单元（206） 通过使用受控的发送功率来发送SRS。 如果要用于发送SRS的子帧是预定的子帧，则发送控制单元（204）使用第一偏移值来控制SRS的发送功率。 否则，发送控制单元（204）使用第二偏移值来控制SRS的发送功率。 第二偏移值是已被建立以便发送到终端（200）的服务小区的偏移值，并且第一偏移值大于第二偏移值。

    WIRELESS TRANSMITTER AND PRECODING METHOD
    6.
    发明申请
    WIRELESS TRANSMITTER AND PRECODING METHOD 审中-公开
    无线发射机和预测方法

    公开(公告)号：US20110286502A1

    公开(公告)日：2011-11-24

    申请号：US13063420

    申请日：2009-09-11

    Applicant: Fumiyuki Adachi ,  Kazuki Takeda ,  Shinsuke Takaoka ,  Kenichi Miyoshi ,  Megumi Ichikawa

    Inventor： Fumiyuki Adachi ,  Kazuki Takeda ,  Shinsuke Takaoka ,  Kenichi Miyoshi ,  Megumi Ichikawa

    IPC: H04L27/01 ,  H04B1/38

    CPC classification number: H04L25/497 ,  H04J11/0033 ,  H04L25/0242 ,  H04L25/03159 ,  H04L25/03343

    Abstract: Disclosed is a wireless transmitter that can prevent deterioration of the error rate characteristic without reducing the data rate during mobile communications also utilizing THP for FDE. In the device, an equivalent channel matrix computation unit (118) computes weights to be used for FDE of a transmission block and an equivalent channel matrix indicating equivalent channels that are generated from channel impulse responses, and a decomposition unit (119) obtains a lower triangular matrix (L), that consists of a diagonal element that includes a high channel quality at the front of the transmitting block and a low channel quality at the rear, so as to indicate the channel quality of the transmission block, and an element indicating interference with the transmission block, and a unitary matrix (Q) by means of LQ decomposition of the equivalent channel matrix. A computation unit (120) uses the lower triangular matrix (L) and the average channel quality to compute a matrix (B) that minimizes the mean square error of all symbols between the transmission block before precoding and a block received by a wireless receiver. A preceding unit (103) performs THP of the transmission block using the matrix (B).

    Abstract translation: 公开了一种无线发射机，可以防止误码率特性的恶化，而不会降低移动通信期间的数据速率，同时也利用THP进行FDE。 在装置中，等效信道矩阵计算单元（118）计算要用于传输块的FDE的权重和指示从信道脉冲响应产生的等效信道的等效信道矩阵，并且分解单元（119）获得较低的 三角矩阵（L），其包括在发送块的前面包括高信道质量的对角元素和在后面的低信道质量，以指示传输块的信道质量，以及指示 与传输块的干扰，以及通过等效信道矩阵的LQ分解的酉矩阵（Q）。 计算单元（120）使用下三角矩阵（L）和平均信道质量来计算使预编码之前的传输块和无线接收器接收的块之间的所有符号的均方误差最小化的矩阵（B）。 前一单元（103）使用矩阵（B）执行传输块的THP。

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