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58 条记录 (耗时 0.024 秒)

    Communication device and SIR estimation method thereof
    22.
    发明申请
    Communication device and SIR estimation method thereof 审中-公开
    通信装置及其SIR估计方法

    公开(公告)号：US20080049636A1

    公开(公告)日：2008-02-28

    申请号：US11797450

    申请日：2007-05-03

    申请人： Dai Kimura

    发明人： Dai Kimura

    IPC分类号： H04Q7/20

    CPC分类号： H04B7/066 ,  H04B7/0632 ,  H04B7/0837 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/20

    摘要： A SIR estimation method for a communication apparatus that performs communication by a single-carrier frequency division multiple access (SC-FDMA) transmission method, wherein estimated channel values for each sub carrier within a signal bandwidth and weight coefficients used in frequency equalization are used to estimate an SIR, which is a ratio of the signal and interference, of a specified transmitting antenna.

    摘要翻译： 一种用于通过单载波频分多址（SC-FDMA）传输方法进行通信的通信装置的SIR估计方法，其中使用信号带宽内的每个子载波的估计信道值和用于频率均衡的权重系数 估计指定发射天线的信号和干扰的比率的SIR。

    Radio signal receiver and gain control method thereof
    23.
    发明申请
    Radio signal receiver and gain control method thereof 有权
    无线电信号接收机及其增益控制方法

    公开(公告)号：US20080048903A1

    公开(公告)日：2008-02-28

    申请号：US11797281

    申请日：2007-05-02

    申请人： Dai Kimura ,  Hiroyuki Seki

    发明人： Dai Kimura ,  Hiroyuki Seki

    IPC分类号： H03M1/12

    CPC分类号： H03G3/3078

    摘要： A radio signal receiver in which a RF-receiving unit 12 converts a radio received signal to a baseband signal, an AD-conversion unit 15a, 15b converts that baseband received signal to a digital signal, and a baseband-processing unit 16 uses the digital signal to perform specified baseband processing, and in which an average-interference-level-measurement unit (SIR measurement unit) 17 measures the average interference level of the received signal, an amp-gain-adjustment unit 18 sets the gain so that a fixed binary value becomes that measured average interference level, and a variable-gain amp 14a, 14b controls the reception level of the received signal by that set gain.

    摘要翻译： 一种无线电信号接收机，其中RF接收单元12将无线电接收信号转换为基带信号，AD转换单元15a，15b将该基带接收信号转换为数字信号，基带处理单元16使用 用于执行指定的基带处理的数字信号，并且其中平均干扰电平测量单元（SIR测量单元）17测量接收信号的平均干扰电平，放大器增益调整单元18设置增益，使得 固定的二进制值变为测量的平均干扰电平，并且可变增益放大器14a，14b通过该设定的增益来控制接收信号的接收电平。

    Spread code allocating method, despreading method, transmitting device, receiving device, communicating device, wireless base station device, and mobile terminal device
    27.
    发明授权
    Spread code allocating method, despreading method, transmitting device, receiving device, communicating device, wireless base station device, and mobile terminal device 有权
    扩频分配方法，解扩方式，发送设备，接收设备，通信设备，无线基站设备和移动终端设备

    公开(公告)号：US08472480B2

    公开(公告)日：2013-06-25

    申请号：US13157947

    申请日：2011-06-10

    申请人： Tsuyoshi Shimomura ,  Dai Kimura ,  Tetsuya Yano

    发明人： Tsuyoshi Shimomura ,  Dai Kimura ,  Tetsuya Yano

    IPC分类号： H04J4/00 ,  H04B1/707

    CPC分类号： H04J13/18 ,  H04J11/00 ,  H04J13/0044 ,  H04L5/0016 ,  H04L5/0017 ,  H04L5/0021 ,  H04L5/0048

    摘要： A communication system, including a transmitter that transmits a signal by using a two-dimensional spread code used for making a spread in time and frequency directions and a receiver that receives the signal transmitted from the transmitter, where the transmitter includes a selecting unit that selects spread codes in which at least one of the time and the frequency directions are mutually orthogonal, and a transmitting unit that spreads a signal by using the selected spread codes and transmits the signal, where each of the selected spread codes are able to be split in two or more parts, which are mutually orthogonal with the same parts of other selected spread codes in at least one of the time and the frequency directions.

    摘要翻译： 一种通信系统，包括通过使用用于在时间和频率上进行扩展的二维扩展码来发送信号的发射机和接收从发射机发射的信号的接收机，其中发射机包括选择单元 其中时间和频率方向中的至少一个相互正交的扩频码，以及通过使用所选择的扩展码来扩展信号的发送单元，并且发送所述信号，其中每个所选择的扩展码能够被分割 两个或更多个部分，其在至少一个时间和频率方向上与其它所选择的扩展码的相同部分相互正交。

    Radio communication apparatus and communication method
    28.
    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

    申请人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

    发明人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

    IPC分类号： H04L27/28

    CPC分类号： H04L27/2647 ,  H04L27/2607

    摘要： 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.

    摘要翻译： 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。

    Wireless communication system and wireless communication method
    29.
    发明申请
    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：US20080186880A1

    公开(公告)日：2008-08-07

    申请号：US12010848

    申请日：2008-01-30

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

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

    IPC分类号： H04B7/208

    CPC分类号： H04W72/1226 ,  H04W72/0453

    摘要： 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.

    摘要翻译： 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。

    Radio communication apparatus and communication method
    30.
    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

    申请人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro kawasaki

    发明人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro kawasaki

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2647 ,  H04L27/2607

    摘要： 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.

    摘要翻译： 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。