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    Radio communication apparatus and communication method
    1.
    发明授权
    Radio communication apparatus and communication method 有权
    无线电通信装置和通信方法

    公开(公告)号：US07609775B2

    公开(公告)日：2009-10-27

    申请号：US11808541

    申请日：2007-06-11

    Applicant: Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

    Inventor： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

    IPC: H04L27/28 ,  H04B1/69

    CPC classification number: H04L27/2647 ,  H04L27/2607

    Abstract: In a radio communication apparatus for forming a frame with a plurality of slots, and inserting a guard interval into each slot along with data for a mobile station to perform communication, a receive state acquisition section acquires a receive state of each mobile station, a frame format decision section decides a frame format of which guard interval length is, different for each slot based on the receive state of each mobile station, a slot assignment section assigns each slot of the frame format to data for each mobile station, and a frame format reporting section reports the decided frame format to the mobile stations via a reporting channel. The mobile station identifies the GI length based on the reported frame format and the slot number, removes the guard interval, and performs processing.

    Abstract translation: 在用于形成具有多个时隙的帧的无线电通信装置中，并且与用于移动台进行通信的数据一起将保护间隔与每个时隙一起插入，接收状态获取部分获取每个移动台的接收状态，帧 格式决定部基于每个移动台的接收状态来决定保护间隔长度对于每个时隙不同的帧格式，时隙分配部将帧格式的每个时隙分配给每个移动台的数据，以及帧格式 报告部分通过报告信道将确定的帧格式报告给移动台。 移动台基于所报告的帧格式和时隙号识别GI长度，消除保护间隔，并执行处理。

    Radio communication apparatus and communication method
    4.
    发明授权
    Radio communication apparatus and communication method 有权
    无线电通信装置和通信方法

    公开(公告)号：US08265183B2

    公开(公告)日：2012-09-11

    申请号：US12606747

    申请日：2009-10-27

    Applicant: Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

    Inventor： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

    IPC: H04L27/28

    CPC classification number: H04L27/2647 ,  H04L27/2607

    Abstract: In a radio communication apparatus for forming a frame with a plurality of slots, and inserting a guard interval into each slot along with data for a mobile station to perform communication, a receive state acquisition section acquires a receive state of each mobile station, a frame format decision section decides a frame format of which guard interval length is different for each slot based on the receive state of each mobile station, a slot assignment section assigns each slot of the frame format to data for each mobile station, and a frame format reporting section reports the decided frame format to the mobile stations via a reporting channel. The mobile station identifies the GI length based on the reported frame format and the slot number, removes the guard interval, and performs processing.

    Abstract translation: 在用于形成具有多个时隙的帧的无线电通信装置中，并且与用于移动台进行通信的数据一起将保护间隔与每个时隙一起插入，接收状态获取部分获取每个移动台的接收状态，帧 格式决定部基于各移动台的接收状态来决定各时隙的保护间隔长度不同的帧格式，时隙分配部将帧格式的每个时隙分配给每个移动台的数据，帧格式报告 部分通过报告信道将确定的帧格式报告给移动台。 移动台基于所报告的帧格式和时隙号识别GI长度，消除保护间隔，并执行处理。

    Radio communication apparatus and communication method
    5.
    发明申请
    Radio communication apparatus and communication method 有权
    无线电通信装置和通信方法

    公开(公告)号：US20070274203A1

    公开(公告)日：2007-11-29

    申请号：US11808541

    申请日：2007-06-11

    Applicant: Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro kawasaki

    Inventor： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro kawasaki

    IPC: H04J11/00

    CPC classification number: H04L27/2647 ,  H04L27/2607

    Abstract: In a radio communication apparatus for forming a frame with a plurality of slots, and inserting a guard interval into each slot along with data for a mobile station to perform communication, a receive state acquisition section acquires a receive state of each mobile station, a frame format decision section decides a frame format of which guard interval length is, different for each slot based on the receive state of each mobile station, a slot assignment section assigns each slot of the frame format to data for each mobile station, and a frame format reporting section reports the decided frame format to the mobile stations via a reporting channel. The mobile station identifies the GI length based on the reported frame format and the slot number, removes the guard interval, and performs processing.

    Abstract translation: 在用于形成具有多个时隙的帧的无线电通信装置中，并且与用于移动台进行通信的数据一起将保护间隔与每个时隙一起插入，接收状态获取部分获取每个移动台的接收状态，帧 格式决定部基于每个移动台的接收状态来决定保护间隔长度对于每个时隙不同的帧格式，时隙分配部将帧格式的每个时隙分配给每个移动台的数据，以及帧格式 报告部分通过报告信道将确定的帧格式报告给移动台。 移动台基于所报告的帧格式和时隙号识别GI长度，消除保护间隔，并执行处理。

    Apparatus and method for fading frequency estimation
    6.
    发明授权
    Apparatus and method for fading frequency estimation 有权
    用于衰落频率估计的装置和方法

    公开(公告)号：US07548595B2

    公开(公告)日：2009-06-16

    申请号：US10988411

    申请日：2004-11-12

    Applicant: Tsuyoshi Shimomura ,  Dai Kimura ,  Tetsuhiro Futami ,  Morihiko Minowa

    Inventor： Tsuyoshi Shimomura ,  Dai Kimura ,  Tetsuhiro Futami ,  Morihiko Minowa

    IPC: H03K9/00

    CPC classification number: H04L25/0202 ,  H04B2201/70701 ,  H04L25/0222

    Abstract: The invention relates to an apparatus and a method for estimating a fading frequency of incoming received waves in a receiving station of a radio communication system or radio transmission system. An object of the invention is to estimate a fading frequency efficiently and accurately without substantially complexing the configuration of the system. To this end, the invention provides an apparatus for estimating a fading frequency from a pilot signal in a reception signal, which includes a calculation unit for calculating a magnitude of a complex product of two symbols that are received at different instants, and an estimation unit for estimating a fading frequency according to the calculated magnitude of the complex product.

    Abstract translation: 本发明涉及一种用于估计无线电通信系统或无线电传输系统的接收站中的输入接收波的衰落频率的装置和方法。 本发明的目的是有效且准确地估计衰落频率，而不会使系统的配置基本上复杂化。 为此，本发明提供了一种用于从接收信号中的导频信号估计衰落频率的装置，其包括：用于计算在不同时刻接收的两个符号的复乘的幅度的计算单元和估计单元 用于根据所计算的复数乘积的大小来估计衰落频率。

    Radio communication system, server, and radio communication method
    7.
    发明授权
    Radio communication system, server, and radio communication method 有权
    无线电通信系统，服务器和无线电通信方法

    公开(公告)号：US08804594B2

    公开(公告)日：2014-08-12

    申请号：US13331147

    申请日：2011-12-20

    Applicant: Yuya Harada ,  Dai Kimura

    Inventor： Yuya Harada ,  Dai Kimura

    IPC: H04H20/71 ,  H04M3/42

    CPC classification number: H04W4/06

    Abstract: A radio communication system includes a first server and a second server. The first server includes a first processor to receive, together with an identifier for identifying a base station, communication information transmitted from a plurality of mobile stations via the base station, extract, for the base station, a keyword frequently used in communications between the first server and the plurality of mobile stations on the basis of the received communication information and the received identifier, and transmit the extracted keyword together with the identifier. The second server includes a second processor to receive, together with the identifier, the keyword transmitted from the first server, and distribute distribution information corresponding to the received keyword to the plurality of mobile stations via the base station.

    Abstract translation: 无线电通信系统包括第一服务器和第二服务器。 第一服务器包括第一处理器，用于与用于识别基站的标识符一起接收经由基站从多个移动台发送的通信信息，为基站提取经常用于第一 服务器和多个移动台，并根据接收到的通信信息和接收到的标识符，并将所提取的关键字与标识符一起发送。 所述第二服务器包括第二处理器，用于与所述标识符一起接收从所述第一服务器发送的关键字，并且经由所述基站将与所接收的关键字相对应的分发信息分发给所述多个移动站。

    Wireless communication system and wireless communication method
    8.
    发明授权
    Wireless communication system and wireless communication method 有权
    无线通信系统和无线通信方式

    公开(公告)号：US08175044B2

    公开(公告)日：2012-05-08

    申请号：US12010848

    申请日：2008-01-30

    Applicant: Hiroyuki Seki ,  Dai Kimura ,  Tsuyoshi Shimomura ,  Hiroyuki Ishii ,  Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Sadayuki Abeta

    Inventor： Hiroyuki Seki ,  Dai Kimura ,  Tsuyoshi Shimomura ,  Hiroyuki Ishii ,  Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Sadayuki Abeta

    IPC: H04L12/28 ,  H04B15/00

    CPC classification number: H04W72/1226 ,  H04W72/0453

    Abstract: The present invention is a wireless communication system having a mobile station and a wireless base station, wherein the wireless base station further having a scheduling processing unit which divides system bandwidth into a plurality of wireless resource blocks in a frequency domain, performs scheduling so that other channels are not assigned to the wireless resource blocks which are adjacent to a first channel when the first channel whose frequency characteristic is not orthogonal to the other channels is assigned to a certain wireless resource block resulting from the division, and creates scheduling information on the scheduling that is performed; and a transmission unit which transmits the scheduling information created by the scheduling processing unit to the mobile station, and the mobile station transmits a channel signal to the wireless base station on the basis of the scheduling information and the wireless base station receives the channel signal transmitted from the mobile station.

    Abstract translation: 本发明是一种具有移动台和无线基站的无线通信系统，其中无线基站还具有将系统带宽分割为频域的多个无线资源块的调度处理单元，进行调度，使其他 当频率特性与其他信道不正交的第一信道被分配给由该划分产生的某个无线资源块时，不将信道分配给与第一信道相邻的无线资源块，并且创建关于调度的调度信息 被执行 以及传输单元，其将由调度处理单元创建的调度信息发送到移动站，并且移动站基于调度信息向无线基站发送信道信号，并且无线基站接收发送的信道信号 从移动台。

    Synchronization detecting apparatus
    9.
    发明授权
    Synchronization detecting apparatus 有权
    同步检测装置

    公开(公告)号：US07366228B2

    公开(公告)日：2008-04-29

    申请号：US09918964

    申请日：2001-07-31

    Applicant: Morihiko Minowa ,  Dai Kimura ,  Noriyuki Kawaguchi

    Inventor： Morihiko Minowa ,  Dai Kimura ,  Noriyuki Kawaguchi

    IPC: H04B1/00

    CPC classification number: H04B1/7075 ,  H04B2201/70701 ,  H04L25/0232

    Abstract: In a channel estimating circuit, a Sync Word is demodulated by using a channel estimation value not with a symbol or a slot including the Sync Word to be demodulated, but with its preceding and succeeding symbols or slots. Furthermore, in a channel estimation process, if a Synch Word to be demodulated is included in any of groups into which a plurality of symbols are divided, the Sync Word is demodulated by using a channel estimation value obtained with the channel estimation process using not this group but another group.

    Abstract translation: 在信道估计电路中，通过使用不具有符号的信道估计值或包括要解调的同步字，但具有其前和后符号或时隙的信道估计值来解调同步字。 此外，在信道估计处理中，如果要解调的同步字被包括在划分多个符号的组中的任一组中，则使用不是使用信道估计处理获得的信道估计值来解调同步字 小组，但另一组。

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