专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07209512B2 CDMA receiver, and searcher in a CDMA receiver 失效
标题翻译： CDMA接收机和CDMA接收机中的搜索器
公开(公告)号：US07209512B2
公开(公告)日：2007-04-24
申请号：US10233180
申请日：2002-08-28
申请人： Daisuke Jitsukawa , Masafumi Tsutsui , Yoshinori Tanaka
发明人： Daisuke Jitsukawa , Masafumi Tsutsui , Yoshinori Tanaka
IPC分类号： H04B1/00
CPC分类号： H04B1/7075 , H04B1/708 , H04B1/7113 , H04B7/0842
摘要： In a searcher of a CDMA receiver comprising an array antenna, a voltage profile generation portion performs correlation computations of received signals for each antenna element and generates received signal voltage profiles; a phase difference estimation portion uses sample data from each voltage profile at the same time to perform correlation calculations among antenna elements and estimates the phase difference among antenna elements at the above time, and similarly estimates the phase differences among antenna elements at each time. An in-phase synthesis portion uses the phase difference estimate at a prescribed time to coordinate the phases of voltage profiles for each antenna element at the above time and performs synthesis, and similarly coordinates the phases of each antenna element voltage profile at other times and performs synthesis; and, a path detection portion detects the path timing of multiple paths based on the synthesized profile obtained by the in-phase synthesis portion.
摘要翻译：在包括阵列天线的CDMA接收机的搜索器中，电压分布生成部分对每个天线元件执行接收信号的相关计算，并产生接收信号电压分布; 相位差估计部分同时使用来自每个电压分布的采样数据来执行天线元件之间的相关计算，并且估计上述时间的天线元件之间的相位差，并且类似地估计每个天线元件之间的相位差。同相合成部使用规定时间的相位差估计来协调上述时刻的各天线元件的电压曲线的相位，并进行合成，并且在其他时刻类似地对各天线元件电压分布进行相位地进行协调合成; 并且，路径检测部分基于由同相合成部分获得的合成轮廓来检测多个路径的路径定时。

2. 发明申请

US20090175374A1 Multiple-Input Multiple-Output Transmission System 失效
标题翻译：多输入多输出传输系统
公开(公告)号：US20090175374A1
公开(公告)日：2009-07-09
申请号：US12368553
申请日：2009-02-10
申请人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
发明人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
IPC分类号： H04K1/10
CPC分类号： H04B7/0691 , H04B7/02 , H04B7/061 , H04L1/0003 , H04L1/0009 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L1/1607 , H04L1/18 , H04L1/1835 , H04L1/1874 , H04L1/1893
摘要： In a multiple-input multiple-output transmission system (MIMO system), a receive station detects whether or not there is an error in each data stream, estimates the state of the propagation path of each transmit antenna and reports, to the transmitting side, re-transmission necessary/unnecessary information, for every data stream, created based upon whether or not there is an error, and the state of the propagation path of each transmit antenna. A transmit station decides a transmit antenna that transmits a data stream requiring re-transmission, based upon the reported state of the propagation path of each transmit antenna, and re-transmits the data stream requiring re-transmission from the transmit antenna decided.
摘要翻译：在多输入多输出传输系统（MIMO系统）中，接收站检测每个数据流中是否存在错误，估计每个发射天线的传播路径的状态并向发射侧报告，对于根据是否存在错误而创建的每个数据流，重新发送必要/不必要的信息，以及每个发射天线的传播路径的状态。发送站基于所报告的每个发送天线的传播路径的状态来决定发送需要再发送的数据流的发送天线，并从所决定的发送天线重新发送需要再发送的数据流。

3. 发明申请

US20050107969A1 Delay profile estimation apparatus and a correlating unit 有权
标题翻译：延迟分布估计装置和相关单元
公开(公告)号：US20050107969A1
公开(公告)日：2005-05-19
申请号：US11020417
申请日：2004-12-27
申请人： Daisuke Jitsukawa , Hioyuki Seki , Yoshinori Tanaka
发明人： Daisuke Jitsukawa , Hioyuki Seki , Yoshinori Tanaka
IPC分类号： G06F17/15 , H04L25/02 , H04L27/26 , G06F19/00
CPC分类号： H04L25/0228 , G06F17/15 , H04L25/0212 , H04L25/0216 , H04L25/0224 , H04L25/03006 , H04L27/2647 , H04L27/2662 , H04L27/2675
摘要： A delay profile estimation apparatus and a correlating unit to obtain delay profile with suppressed noise are disclosed. The delay profile estimation apparatus includes a receiving unit to receive a communication signal (received signal), a conversion unit to inverse-Fourier-transform a known pilot signal that consists of N samples, a correlating unit to obtain a correlation value between the inverse-Fourier-transformed known pilot signal and the received signal, the correlating unit being connected to the receiving unit and the conversion unit, and a delay profile generating unit for generating a delay profile of the received signal based on the correlation value. The correlating unit cyclically shifts N samples of the received signal, or the N samples of the known pilot signal when calculating the correlation value corresponding to a phase difference between the inverse-Fourier-transformed known pilot signal and the received signal.
摘要翻译：公开了一种获得具有抑制噪声的延迟分布的延迟分布估计装置和相关单元。延迟分布估计装置包括：接收单元，用于接收通信信号（接收信号）;变换单元，对由N个采样构成的已知导频信号进行傅里叶变换;相关单元，傅里叶变换的已知导频信号和接收信号，相关单元连接到接收单元和转换单元，以及延迟分布生成单元，用于基于相关值产生接收信号的延迟分布。相关单元在计算与傅里叶逆傅里叶变换后的已知导频信号与接收信号之间的相位差相对应的相关值时，循环移位接收信号的N个采样或已知导频信号的N个采样。

4. 发明申请

US20060114813A1 Multiple-input multiple-output transmission system 有权
公开(公告)号：US20060114813A1
公开(公告)日：2006-06-01
申请号：US11233189
申请日：2005-09-22
申请人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
发明人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
IPC分类号： H04J11/00
CPC分类号： H04B7/0691 , H04B7/02 , H04B7/061 , H04L1/0003 , H04L1/0009 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L1/1607 , H04L1/18 , H04L1/1835 , H04L1/1874 , H04L1/1893
摘要： In a multiple-input multiple-output transmission system (MIMO system), a receive station detects whether or not there is an error in each data stream, estimates the state of the propagation path of each transmit antenna and reports, to the transmitting side, re-transmission necessary/unnecessary information, for every data stream, created based upon whether or not there is an error, and the state of the propagation path of each transmit antenna. A transmit station decides a transmit antenna that transmits a data stream requiring re-transmission, based upon the reported state of the propagation path of each transmit antenna, and re-transmits the data stream requiring re-transmission from the transmit antenna decided.

5. 发明授权

US07386031B2 Mulitcarrier CDMA transmission system and transmission method 失效
标题翻译：多传输CDMA传输系统及传输方式
公开(公告)号：US07386031B2
公开(公告)日：2008-06-10
申请号：US10783893
申请日：2004-02-20
申请人： Hiroyuki Seki , Daisuke Jitsukawa , Yoshinori Tanaka
发明人： Hiroyuki Seki , Daisuke Jitsukawa , Yoshinori Tanaka
IPC分类号： H04B1/00
CPC分类号： H04B7/0669 , H04L5/026
摘要： In multicarrier transmission for multiplying transmit data individually by each code constituting orthogonal codes and transmitting each result of multiplication by a prescribed subcarrier, a plurality of different subcarriers are assigned exclusively to each user and each user performs multicarrier transmission of the transmit data by the subcarriers assigned. Further, a base station assigns a plurality of different subcarriers to each user exclusively, applies beam-forming processing on a per-user basis and performs multicarrier transmission of transmit data to each user by the subcarriers assigned.
摘要翻译：在多载波传输中，通过构成正交码的每个码分别发送数据，并将每个乘法结果发送给规定的副载波，多个不同的副载波被分配给每个用户，每个用户通过分配的子载波进行发射数据的多载波传输。此外，基站分配多个不同的子载波给每个用户，对每个用户进行波束形成处理，并通过分配的子载波对每个用户执行发送数据的多载波传输。

6. 发明授权

US07003415B2 Delay profile estimation apparatus and a correlating unit 有权
标题翻译：延迟分布估计装置和相关单元
公开(公告)号：US07003415B2
公开(公告)日：2006-02-21
申请号：US11020417
申请日：2004-12-27
申请人： Daisuke Jitsukawa , Hiroyuki Seki , Yoshinori Tanaka
发明人： Daisuke Jitsukawa , Hiroyuki Seki , Yoshinori Tanaka
IPC分类号： G01R23/16
CPC分类号： H04L25/0228 , G06F17/15 , H04L25/0212 , H04L25/0216 , H04L25/0224 , H04L25/03006 , H04L27/2647 , H04L27/2662 , H04L27/2675
摘要： A delay profile estimation apparatus and a correlating unit to obtain delay profile with suppressed noise are disclosed. The delay profile estimation apparatus includes a receiving unit to receive a communication signal (received signal), a conversion unit to inverse-Fourier-transform a known pilot signal that consists of N samples, a correlating unit to obtain a correlation value between the inverse-Fourier-transformed known pilot signal and the received signal, the correlating unit being connected to the receiving unit and the conversion unit, and a delay profile generating unit for generating a delay profile of the received signal based on the correlation value. The correlating unit cyclically shifts N samples of the received signal, or the N samples of the known pilot signal when calculating the correlation value corresponding to a phase difference between the inverse-Fourier-transformed known pilot signal and the received signal.
摘要翻译：公开了一种获得具有抑制噪声的延迟分布的延迟分布估计装置和相关单元。延迟分布估计装置包括：接收单元，用于接收通信信号（接收信号）;变换单元，对由N个采样构成的已知导频信号进行傅里叶变换;相关单元，傅里叶变换的已知导频信号和接收信号，相关单元连接到接收单元和转换单元，以及延迟分布生成单元，用于基于相关值产生接收信号的延迟分布。相关单元在计算与傅里叶逆傅里叶变换后的已知导频信号与接收信号之间的相位差相对应的相关值时，循环移位接收信号的N个采样或已知导频信号的N个采样。

7. 发明授权

US08542575B2 Multiple-input multiple-output transmission system 失效
标题翻译：多输入多输出传输系统
公开(公告)号：US08542575B2
公开(公告)日：2013-09-24
申请号：US12368553
申请日：2009-02-10
申请人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
发明人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
IPC分类号： H04W4/00 , H04J1/16 , H04B7/00
CPC分类号： H04B7/0691 , H04B7/02 , H04B7/061 , H04L1/0003 , H04L1/0009 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L1/1607 , H04L1/18 , H04L1/1835 , H04L1/1874 , H04L1/1893
摘要： In a multiple-input multiple-output transmission system (MIMO system), a receive station detects whether or not there is an error in each data stream, estimates the state of the propagation path of each transmit antenna and reports, to the transmitting side, re-transmission necessary/unnecessary information, for every data stream, created based upon whether or not there is an error, and the state of the propagation path of each transmit antenna. A transmit station decides a transmit antenna that transmits a data stream requiring re-transmission, based upon the reported state of the propagation path of each transmit antenna, and re-transmits the data stream requiring re-transmission from the transmit antenna decided.
摘要翻译：在多输入多输出传输系统（MIMO系统）中，接收站检测每个数据流中是否存在错误，估计每个发射天线的传播路径的状态并向发射侧报告，对于根据是否存在错误而创建的每个数据流，重新发送必要/不必要的信息，以及每个发射天线的传播路径的状态。发送站基于所报告的每个发送天线的传播路径的状态来决定发送需要再发送的数据流的发送天线，并从所决定的发送天线重新发送需要再发送的数据流。

8. 发明授权

US07924784B2 Feedback control method and apparatus in closed-loop transmit diversity 有权
标题翻译：闭环发射分集中的反馈控制方法及装置
公开(公告)号：US07924784B2
公开(公告)日：2011-04-12
申请号：US10872314
申请日：2004-06-17
申请人： Hiroyuki Seki , Daisuke Jitsukawa , Yoshinori Tanaka
发明人： Hiroyuki Seki , Daisuke Jitsukawa , Yoshinori Tanaka
IPC分类号： H04W4/00 , H04L12/28 , H04L12/56
CPC分类号： H04B7/0634 , H04B7/022
摘要： Disclosed is a feedback control method in closed-loop transmit diversity in which feedback information representing amounts of amplitude and phase control is transmitted from a mobile station to a radio base station. The mobile station receives downlink pilot signals, which are transmitted by a handover-destination base station, during handover control, calculates feedback information, which represents amounts of amplitude and phase and phase control transmitted to the handover-destination base station, beforehand based upon the pilot signals received, and transmits the feedback information to the handover-destination base station before completion of base-station changeover by handover.
摘要翻译：公开了一种闭环发送分集中的反馈控制方法，其中表示幅度和相位控制量的反馈信息从移动台发送到无线基站。在切换控制期间，移动站接收由切换目的地基站发送的下行链路导频信号，预先基于发送到切换目的地基站的幅度和相位和相位控制的量，反馈信息接收的导频信号，并且在通过切换完成基站切换之前将反馈信息发送到切换目的地基站。

9. 发明申请

US20110058592A1 MULTICARRIER CDMA TRANSMISSION SYSTEM AND TRANSMISSION METHOD 审中-公开
标题翻译： MULTICARRIER CDMA传输系统和传输方法
公开(公告)号：US20110058592A1
公开(公告)日：2011-03-10
申请号：US12104888
申请日：2008-04-17
申请人： Hiroyuki Seki , Daisuke Jitsukawa , Yoshinori Tanaka
发明人： Hiroyuki Seki , Daisuke Jitsukawa , Yoshinori Tanaka
IPC分类号： H04B1/707
CPC分类号： H04B7/0669 , H04L5/026
摘要： In multicarrier transmission for multiplying transmit data individually by each code constituting orthogonal codes and transmitting each result of multiplication by a prescribed subcarrier, a plurality of different subcarriers are assigned exclusively to each user and each user performs multicarrier transmission of the transmit data by the subcarriers assigned. Further, a base station assigns a plurality of different subcarriers to each user exclusively, applies beam-forming processing on a per-user basis and performs multicarrier transmission of transmit data to each user by the subcarriers assigned.
摘要翻译：在多载波传输中，通过构成正交码的每个码分别发送数据，并将每个乘法结果发送给规定的副载波，多个不同的副载波被分配给每个用户，每个用户通过分配的子载波进行发射数据的多载波传输。此外，基站分配多个不同的子载波给每个用户，对每个用户进行波束形成处理，并通过分配的子载波对每个用户执行发送数据的多载波传输。

10. 发明授权

US07826346B2 Multiple-input multiple-output transmission system 有权
标题翻译：多输入多输出传输系统
公开(公告)号：US07826346B2
公开(公告)日：2010-11-02
申请号：US11233189
申请日：2005-09-22
申请人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
发明人： Hiroyuki Seki , Yoshinori Tanaka , Daisuke Jitsukawa
IPC分类号： H04W4/00 , H04J1/16 , H04B7/00
CPC分类号： H04B7/0691 , H04B7/02 , H04B7/061 , H04L1/0003 , H04L1/0009 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L1/1607 , H04L1/18 , H04L1/1835 , H04L1/1874 , H04L1/1893
摘要： In a multiple-input multiple-output transmission system (MIMO system), a receive station detects whether or not there is an error in each data stream, estimates the state of the propagation path of each transmit antenna and reports, to the transmitting side, re-transmission necessary/unnecessary information, for every data stream, created based upon whether or not there is an error, and the state of the propagation path of each transmit antenna. A transmit station decides a transmit antenna that transmits a data stream requiring re-transmission, based upon the reported state of the propagation path of each transmit antenna, and re-transmits the data stream requiring re-transmission from the transmit antenna decided.
摘要翻译：在多输入多输出传输系统（MIMO系统）中，接收站检测每个数据流中是否存在错误，估计每个发射天线的传播路径的状态并向发射侧报告，对于根据是否存在错误而创建的每个数据流，重新发送必要/不必要的信息，以及每个发射天线的传播路径的状态。发送站基于所报告的每个发送天线的传播路径的状态来决定发送需要再发送的数据流的发送天线，并从所决定的发送天线重新发送需要再发送的数据流。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式