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. 发明专利

JP2011077941A Wireless receiver, wireless communication system, and wireless communication method 有权
标题翻译：无线接收机，无线通信系统和无线通信方法
公开(公告)号：JP2011077941A
公开(公告)日：2011-04-14
申请号：JP2009228842
申请日：2009-09-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： H04B1/707 , H04B7/04 , H04B7/06 , H04J99/00 , H04W16/28
CPC分类号： H04B1/7107 , H04B2201/70701
摘要： PROBLEM TO BE SOLVED: To accurately cancel interference from a synchronization signal when decoding any signals other than the synchronization signal. SOLUTION: A wireless receiver receives a signal obtained by multiplexing a plurality of signals that include a synchronization signal that is spread using a non-orthogonal code not orthogonal to a code for spreading other signals other than the synchronization signal. Then, in a case when the signals other than the synchronization signal are the target signals for decoding, the wireless receiver performs despreading with respect to the received signal using the synchronization signal and estimates the signal amplitude of the non-orthogonal code. Subsequently, the wireless receiver eliminates the spread synchronization signal from the received signal using the estimated signal amplitude of the non-orthogonal code and using the synchronization signal. Eventually, the wireless receiver performs despreading and demodulation with respect to the signal having the spread synchronization signal eliminated therefrom and decodes the target signals for decoding. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：在解码除了同步信号之外的任何信号时，准确地消除来自同步信号的干扰。解决方案：无线接收机接收通过复用多个信号而获得的信号，所述信号包括使用与用于扩展除了同步信号之外的其他信号的代码不正交的非正交码进行扩展的同步信号。然后，在除了同步信号之外的信号是用于解码的目标信号的情况下，无线接收机使用同步信号对接收到的信号进行解扩，并且估计非正交码的信号幅度。随后，无线接收器使用非正交码的估计信号幅度和使用同步信号从接收信号中消除扩展同步信号。最终，无线接收机对从消除了扩展同步信号的信号执行解扩和解调，并解码目标信号进行解码。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010226476A Retransmission method, wireless communication apparatus, and relay station 有权
标题翻译：无线通信设备和中继站
公开(公告)号：JP2010226476A
公开(公告)日：2010-10-07
申请号：JP2009072180
申请日：2009-03-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： H04W28/04 , H04L1/16 , H04L29/08 , H04W16/26 , H04W40/12
CPC分类号： H04B7/155 , H04L1/0015 , H04L1/1825 , H04L1/1877 , H04L1/1887 , H04L1/1893 , H04L2001/0097 , H04W84/047
摘要： PROBLEM TO BE SOLVED: To reduce delay of data transmission on the occurrence of retransmission processing.
SOLUTION: A communication system 100 includes a wireless communication apparatus 110, a relay station 120 and a wireless communication apparatus 130. First transmission of data from the wireless communication apparatus 110 to the wireless communication apparatus 130 is performed using wireless relaying by the relay station 120. Retransmission processing of the data is performed through fewer relay stations than the total of the relay stations, in which wireless relaying is performed in the first transmission, or without using any relay station, and the wireless communication apparatus 130 receives data transmitted on the basis of the retransmission processing.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了减少重发处理的发生时的数据传输的延迟。解决方案：通信系统100包括无线通信设备110，中继站120和无线通信设备130.数据从无线通信设备110到无线通信设备130的首次传输是使用无线通信设备中继站120.通过比在第一传输中执行无线中继或不使用任何中继站的中继站的总数更少的中继站来执行数据的重传处理，并且无线通信装置130接收发送的数据在重传处理的基础上。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010041687A Wireless communication apparatus, and wireless communication controlling method 审中-公开
标题翻译：无线通信设备，无线通信控制方法
公开(公告)号：JP2010041687A
公开(公告)日：2010-02-18
申请号：JP2008205794
申请日：2008-08-08
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： H04J11/00
CPC分类号： H04L5/0007
摘要： PROBLEM TO BE SOLVED: To simplify demodulation processing at a receiving side when frequency aggregation is applied.
SOLUTION: While widening a sub-carrier interval in a high-frequency band in order to reduce the influence of Doppler shift, transmission timings of frames for every frequency band are matched. By matching the frame transmission timings, at the receiving side, once the modulation timing in one frequency band is detected, the modulation timing at other frequency band can also be obtained. Therefore, demodulation can be simplified. To match the frame transmission timings, the CP length is adjusted, for example.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了简化在应用频率聚合时在接收侧的解调处理。解决方案：为了减少多普勒频移的影响，在加宽高频带中的子载波间隔的同时，匹配每个频带的帧的传输定时。通过匹配帧发送定时，在接收侧，一旦检测到一个频带中的调制定时，也可以获得其他频带的调制定时。因此，可以简化解调。为了匹配帧发送定时，例如，CP长度被调整。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010022056A Receiving apparatus 有权
标题翻译：接收装置
公开(公告)号：JP2010022056A
公开(公告)日：2010-01-28
申请号：JP2009243072
申请日：2009-10-22
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI , DATEKI TAKASHI
IPC分类号： H04J11/00 , H04B1/10
摘要： PROBLEM TO BE SOLVED: To correctly perform channel estimation, by eliminating inter-symbol interference (ISI), enlarging an average value of FFT (Fast Fourier Transform) and reducing a rotation amplitude.
SOLUTION: The invention relates to a receiving apparatus, which applies FFT processing to a reception signal corresponding to a prescribed FFT window size to receive a transmission signal to which an orthogonal frequency division multiplexing is applied, including: a shift unit that shifts a second reception signal received temporally before a first reception signal to a position of a reception signal temporally after the first reception signal to obtain a reception signal corresponding to the prescribed FFT size; and an FFT processing section for applying FFT processing to the reception signal obtained by shifting due to the shift unit.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了正确地执行信道估计，通过消除符号间干扰（ISI），扩大FFT（快速傅里叶变换）的平均值并减小旋转振幅。解决方案本发明涉及对与规定的FFT窗口尺寸相对应的接收信号应用FFT处理以接收应用了正交频分复用的发送信号的接收装置，包括：移位单元，其移位在第一接收信号之前的时间上接收到在第一接收信号之后的接收信号的位置的第二接收信号，以获得对应于规定的FFT大小的接收信号; 以及FFT处理部，用于对由于移位单位的移位而获得的接收信号进行FFT处理。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2010021647A Mobile station and base station 有权
标题翻译：移动台和基地台
公开(公告)号：JP2010021647A
公开(公告)日：2010-01-28
申请号：JP2008178245
申请日：2008-07-08
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： H04W28/18 , H04B7/08 , H04W4/04 , H04W24/10
CPC分类号： H04B17/0042 , H04B17/309 , H04L1/0015 , H04L1/06
摘要： PROBLEM TO BE SOLVED: To optimize throughput by eliminating differences of reception quality both upon measurement of the reception quality and upon reception of data during adaptive modulation. SOLUTION: The mobile station 10 includes an antenna 11 for receiving the data and an antenna 12 for measuring the reception quality. The reception quality measured in the antenna 12 is notified to the base station with the delay by the time in which the time needed to exchange information between the mobile station 10 and the base station is subtracted from the time needed for the mobile station 10 to move the distance between the antenna 11 and the antenna 12 in an advancing direction. Thus, the antenna 11 receives the data of an optimum transmission format corresponding to the reception quality from the base station. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过在接收质量的测量和在自适应调制期间的数据接收时消除接收质量的差异来优化吞吐量。解决方案：移动站10包括用于接收数据的天线11和用于测量接收质量的天线12。在天线12中测量的接收质量以延迟时间通知给基站，其中从移动台10移动所需的时间中减去在移动站10和基站之间交换信息所需的时间天线11和天线12之间的距离在前进方向上。因此，天线11从基站接收与接收质量对应的最佳发送格式的数据。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2007208689A Interference reduction receiver and method therefor 有权
标题翻译：干扰减少接收器及其方法
公开(公告)号：JP2007208689A
公开(公告)日：2007-08-16
申请号：JP2006025553
申请日：2006-02-02
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： H04B1/707 , H04B1/711 , H04B1/7115 , H04B1/712 , H04B7/02 , H04B7/08
CPC分类号： H04B1/712 , H04B1/7103 , H04B2201/70707 , H04B2201/709727
摘要： PROBLEM TO BE SOLVED: To provide a receiver and a receiving method which can perform a high-precise and high-speed interference reduction processing. SOLUTION: This interference reduction receiver performs despreading of digital signals at a plurality of timings, multiplies, combines weight to each signal after despreading and has: an estimation means for estimating channel response vectors having channel estimation values corresponding to each timing in element, respectively based on the digital signal; a quantization means for quantizing the digital signal, respectively near each timing; a signal correlation matrix generation means for generating signal correlation matrix which uses each signal correlation value calculated, respectively based on each quantized signal as elements, respectively and a weight calculation means for calculating the weight based on the channel response vectors and the signal correlation matrixes. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够执行高精度和高速干扰减少处理的接收机和接收方法。解决方案：该干扰减少接收机在多个定时进行数字信号的解扩，乘法，在解扩后将每个信号的权重组合起来，具有：估计装置，用于估计具有对应于元素中每个定时的信道估计值的信道响应向量，分别基于数字信号; 用于分别在每个定时附近量化数字信号的量化装置; 信号相关矩阵产生装置，用于产生分别基于每个量化信号作为元素计算的每个信号相关值的信号相关矩阵，以及用于基于信道响应向量和信号相关矩阵计算权重的权重计算装置。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2014099815A Radio communication device and radio communication method 有权
标题翻译：无线电通信设备和无线电通信方法
公开(公告)号：JP2014099815A
公开(公告)日：2014-05-29
申请号：JP2012251702
申请日：2012-11-15
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04L25/03949 , H04B7/0413 , H04B7/0456 , H04B7/0854 , H04L25/03968
摘要： PROBLEM TO BE SOLVED: To improve an error rate characteristic.SOLUTION: A radio communication device includes: a radio unit for receiving a signal from a transmitter having a plurality of antennas through the plurality of antennas; and a demodulation unit for performing QR decomposition of a channel matrix generated based on a reception signal from the radio unit, extracting a weighting coefficient corresponding to a symbol to be demodulated from a Q matrix, filtering a reception signal weighted by the weighting coefficient, and separating the filtered reception signal on the basis of a partial matrix of an R matrix.
摘要翻译：要解决的问题：提高错误率特性。解决方案：无线电通信设备包括：无线电单元，用于通过多个天线从具有多个天线的发射机接收信号; 以及解调单元，用于对来自所述无线单元的接收信号生成的信道矩阵进行QR分解，从Q矩阵中提取与要解调的符号对应的加权系数，对由所述加权系数加权的接收信号进行滤波，以及基于R矩阵的部分矩阵来分离经滤波的接收信号。

8. 发明专利

JP2011080840A Determination device and determining method 有权
标题翻译：确定装置和确定方法
公开(公告)号：JP2011080840A
公开(公告)日：2011-04-21
申请号：JP2009232613
申请日：2009-10-06
申请人： Fujitsu Ltd , Fujitsu Peripherals Ltd , 富士通周辺機株式会社 , 富士通株式会社
发明人： HASEGAWA TAKESHI
IPC分类号： G01V8/12
摘要： PROBLEM TO BE SOLVED: To provide a determination device and a determining method determining whether or not a measured object exists within a predetermined distance.
SOLUTION: Output values periodically output from a sensor part are stored in a memory table (S11), and an average value is calculated (S13) at a stage when a predetermined number of output values are stored (S12: YES). Then, a memory table storing only output values except for the output values below the average value among the output values stored in the memory table, is newly prepared (S14). Whether or not a user exists near is determined by calculating an average value from the output values stored in the memory table prepared in the step S14 (S15) and comparing a magnitude relation between the average value and a threshold (S16).
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供确定测量对象是否存在于预定距离内的确定装置和确定方法。解决方案：从传感器部分周期性地输出的输出值被存储在存储表（S11）中，并且在存储预定数量的输出值的阶段（S13）是计算平均值（S13）（S12：是）。然后，重新准备存储在存储表中存储的输出值之内除了平均值以下的输出值以外的输出值的存储表（S14）。通过根据存储在步骤S14中准备的存储表中的输出值（S15）计算平均值并比较平均值和阈值之间的大小关系来确定用户是否存在在附近（S16）。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2005012359A Apparatus and method for searching cell of mobile station in mobile communications system 审中-公开
标题翻译：移动通信系统移动站小区搜索的装置和方法
公开(公告)号：JP2005012359A
公开(公告)日：2005-01-13
申请号：JP2003172231
申请日：2003-06-17
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITO AKIRA , HASEGAWA TAKESHI
IPC分类号： H04B1/707 , H04B1/7083 , H04B1/7115 , H04Q7/34
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for searching the cell of a mobile station in a mobile communication system which improves the detection accuracy of the synchronous code and an S/N of a synchronization channel, raising the detection probability of a base station, and improving the processing efficiency of a cell search. SOLUTION: The method for searching the cell of the mobile station in the mobile communication system includes a step of detecting a primary synchronous code contained in a primary synchronization channel of a plurality of paths from one or a plurality of base stations, and establishing slot timing synchronization of each path. Then, the method further includes a step of judging whether the plurality of the paths in which the slot timing synchronization is established are the paths from the same base station or not, classifying the paths of the same base station into a group, and selecting one of the classified groups. Then, the method includes a step of detecting the 2nd synchronous code contained in the 2nd synchronization channel of this group by rake combining of all the paths contained in the selected group, and performing establishing of frame timing synchronization of the path and identification of scrambling code group. Then, the method also includes a step of identifying the scrambling code based on the identified scrambling code group and a common pilot channel. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在移动通信系统中搜索移动站的小区的装置和方法，其提高了同步码的检测精度和同步信道的S / N，提高了检测基站的概率，提高小区搜索的处理效率。解决方案：用于在移动通信系统中搜索移动站的小区的方法包括检测包含在来自一个或多个基站的多个路径的主同步信道中的主同步码的步骤，以及建立每个路径的时隙定时同步。然后，该方法还包括以下步骤：判断时隙定时同步的多个路径是否是来自同一基站的路径，将同一基站的路径分类为组，并选择一个的分类组。然后，该方法包括以下步骤：通过所选择的组中包含的所有路径的rake组合来检测包含在该组的第二同步信道中的第二同步码，并且执行路径的帧定时同步和扰码识别组。然后，该方法还包括基于所识别的扰码组和公共导频信道来识别扰码的步骤。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004241916A Apparatus and system for interference suppression 有权
标题翻译：干扰抑制装置和系统
公开(公告)号：JP2004241916A
公开(公告)日：2004-08-26
申请号：JP2003027316
申请日：2003-02-04
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SHIMIZU MASAHIKO , HASEGAWA TAKESHI
IPC分类号： H04J11/00
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a system for interference suppression that enable guard intervals of an OFDM signal to be set short.
SOLUTION: The interference suppression apparatus is used for a receiving device which performs Fourier transformation of the OFDM signal. This device has a timing setting means of setting a first time frame and a second time frame for the Fourier transform, a first Fourier transforming means of performing the Fourier transform with the first time frame, a second Fourier transforming means of performing the Fourier transform with the second time frame set differently from the first time frame, and an adding means of generating an output signal by adding signals outputted from the first and second Fourier transforming means together by subcarriers of the OFDM signal.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供使OFDM信号的保护间隔短的设备和用于干扰抑制的系统。解决方案：干扰抑制装置用于执行OFDM信号的傅里叶变换的接收装置。该装置具有设定用于傅立叶变换的第一时间帧和第二时间帧的定时设定单元，执行第一时间帧的傅里叶变换的第一傅里叶变换单元，执行与与第一时间帧不同的第二时间帧，以及加法装置，通过将从第一和第二傅立叶变换装置输出的信号加在一起，将OFDM信号的子载波相加。版权所有（C）2004，JPO＆NCIPI

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