利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.041 秒)

    Spread code allocating method, despreading method, transmitting device, receiving device, communicating device, wireless base station device, and mobile terminal device
    1.
    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。

    Wireless communication system and wireless communication method
    2.
    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 method and a base station and user terminal thereof
    3.
    发明授权
    Radio communication method and a base station and user terminal thereof 有权
    无线通信方法及其基站及其用户终端

    公开(公告)号：US08351469B2

    公开(公告)日：2013-01-08

    申请号：US12486948

    申请日：2009-06-18

    申请人： Tsuyoshi Shimomura ,  Dai Kimura

    发明人： Tsuyoshi Shimomura ,  Dai Kimura

    IPC分类号： H04B3/10 ,  H04B1/16

    CPC分类号： H04L27/2637 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0091 ,  H04L23/02 ,  H04L27/2601 ,  H04L27/2613 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0453

    摘要： In a radio communication system, each of user terminals together with transmitting a data signal to a base station using different data transmission band frequencies that are assigned by a base station, performs time-division multiplexing of a pilot signal with the data signal and transmit the resulting signal to the base station. A resource management unit of the base station decides pilot transmission bands for each user terminal so that the pilot transmission band covers the data transmission band for each user terminal by frequency offset, and instructs the user terminal to transmit pilot signals using the decided pilot transmission band frequencies. Thereby the base station can estimate channel for each frequency of the data transmission band using the pilot signal.

    摘要翻译： 在无线电通信系统中，每个用户终端与使用基站分配的不同数据传输频带频率向基站发送数据信号，执行导频信号与数据信号的时分复用，并发送 从而产生信号到基站。 基站的资源管理单元为每个用户终端确定导频传输频带，使得导频传输频带通过频率偏移覆盖每个用户终端的数据传输频带，并且指示用户终端使用所确定的导频传输频带来发送导频信号 频率 因此，基站可以使用导频信号估计数据传输频带的每个频率的信道。

    Radio communication method and a base station and user terminal thereof
    5.
    发明授权
    Radio communication method and a base station and user terminal thereof 有权
    无线通信方法及其基站及其用户终端

    公开(公告)号：US08654794B2

    公开(公告)日：2014-02-18

    申请号：US13549826

    申请日：2012-07-16

    申请人： Tsuyoshi Shimomura ,  Dai Kimura

    发明人： Tsuyoshi Shimomura ,  Dai Kimura

    IPC分类号： H04B3/10 ,  H04J1/16

    CPC分类号： H04L27/2637 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0091 ,  H04L23/02 ,  H04L27/2601 ,  H04L27/2613 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0453

    摘要： A radio communication method in a radio communication system in which data signals for a first and second user are respectively transmitted using first and second subcarrier groups, and pilot signals for the first and second users are multiplexed using time-division multiplexing with the data signals for those users, including arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user and mapping subcarrier components of the pilot signals so that one of subcarrier components of higher frequencies corresponds to one of subcarrier components of lower frequencies, wherein the pilot signals are generated using a Zadoff-Chu sequence.

    摘要翻译： 一种无线电通信系统中的无线电通信方法，其中使用第一和第二子载波组分别发送用于第一和第二用户的数据信号，并且使用与数据信号进行时分多路复用的第一和第二用户的导频信号， 这些用户包括以与第二用户的导频信号的频率不同的频率布置第一用户的导频信号，并映射导频信号的子载波分量，使得较高频率的子载波分量之一对应于较低频率的子载波分量之一 频率，其中使用Zadoff-Chu序列生成导频信号。

    Base Station And Method Of Assigning Frequencies To Pilot Sequences
    7.
    发明申请
    Base Station And Method Of Assigning Frequencies To Pilot Sequences 审中-公开
    基站和导频序列分配频率的方法

    公开(公告)号：US20090175228A1

    公开(公告)日：2009-07-09

    申请号：US12327278

    申请日：2008-12-03

    申请人： Dai Kimura ,  Tsuyoshi Shimomura

    发明人： Dai Kimura ,  Tsuyoshi Shimomura

    IPC分类号： H04J1/00 ,  H04W72/04

    CPC分类号： H04L27/262 ,  H04B17/327 ,  H04L5/0007 ,  H04L5/0051 ,  H04W24/00 ,  H04W48/08 ,  H04W72/0453

    摘要： A base station that assigns frequencies to UP link pilot signals in a radio communication system, where the base station stores the correlation between each of a plurality of pilot sequences having different Peak to Average Power characteristics and a plurality of frequencies that are used for transmitting the pilot sequence by frequency multiplexing, and makes the correlation between each of said pilot sequences and said assigned frequencies in adjacent cells or sectors different. Moreover, the base station measures the reception quality of signals received from a user terminal, makes reference to the stored correlation and finds a pilot sequence having Peak to Average Power characteristic that correspond to said reception quality, then sends an instruction to the user terminal so that the user terminal transmits the pilot sequence using the frequencies assigned to this pilot sequence.

    摘要翻译： 一种在无线电通信系统中将频率分配给UP链路导频信号的基站，其中基站存储具有不同峰值与平均功率特性的多个导频序列中的每一个与用于发送的多个频率之间的相关性 导频序列，并且使相邻小区或扇区中的每个所述导频序列与所分配的频率之间的相关性不同。 此外，基站测量从用户终端接收的信号的接收质量，参考所存储的相关性，并找到具有与所述接收质量相对应的峰均功率特性的导频序列，然后向用户终端发送指令 用户终端使用分配给该导频序列的频率来发送导频序列。

    Apparatus and method for fading frequency estimation
    8.
    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

    申请人： Tsuyoshi Shimomura ,  Dai Kimura ,  Tetsuhiro Futami ,  Morihiko Minowa

    发明人： Tsuyoshi Shimomura ,  Dai Kimura ,  Tetsuhiro Futami ,  Morihiko Minowa

    IPC分类号： H03K9/00

    CPC分类号： H04L25/0202 ,  H04B2201/70701 ,  H04L25/0222

    摘要： 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.

    摘要翻译： 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。

    Wireless communication system and wireless communication method
    9.
    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

    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： H04L12/28 ,  H04B15/00

    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。