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

JP2011193389A Radio station and radio apparatus 有权
标题翻译：无线电台和无线电设备
公开(公告)号：JP2011193389A
公开(公告)日：2011-09-29
申请号：JP2010059823
申请日：2010-03-16
申请人： Toshiba Corp , 株式会社東芝
发明人： AOKI TSUGUHIDE , TANABE YASUHIKO , YAMAMOTO TAKAHARU , TASHIRO TAICHI , AYAME SHOGO
IPC分类号： H04W72/04 , H04W16/28
摘要： PROBLEM TO BE SOLVED: To provide a radio station which can schedule bands suitable for frequency sharing.
SOLUTION: A radio station 100 is geographically adjacent to a first radio station that communicates with a first radio terminal using a first band. The radio station 100 includes a scheduling part 143 for determining that the first band is to be shared with the first radio station if a first correlation, between a first training symbol that the radio station 100 uses in the first band and a second training symbol that the first radio station uses in the first band, is less than a first threshold.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供可以安排适合于频率共享的频带的无线电台。解决方案：无线电站100在地理上与第一无线电站相邻，第一无线电站使用第一频带与第一无线电终端进行通信。如果在第一频带中使用的第一训练符号和第二训练符号之间的第一相关性，则无线电台100包括用于确定第一频带将与第一无线电台站共享的调度部分143，第一个无线电台在第一个频带使用，小于第一个阈值。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2008301418A Radio communication device 审中-公开
标题翻译：无线电通信设备
公开(公告)号：JP2008301418A
公开(公告)日：2008-12-11
申请号：JP2007148210
申请日：2007-06-04
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKEDA DAISUKE , MORI HIROKI , TANABE YASUHIKO
IPC分类号： H04B7/04 , H04J99/00
摘要： PROBLEM TO BE SOLVED: To provide a radio communication device capable of receiving sufficient benefit from beam forming even when carrying out the beam forming for a receiver having a different number of antennas.
SOLUTION: The radio communication device includes a plurality of receiving means connected to antennas respectively, a plurality of transmitting means of transmitting known signals while connected to the antennas respectively, an estimating means of estimating transmission lines by the antennas based upon signals that the receiving means have received and finding transmission line estimated values by the antennas, a detecting means of demodulating the signals that the receiving means have received and detecting transmission line information on the plurality of transmission lines from the demodulated data, a correcting means of correcting the transmission line information based upon the transmission line estimated values, a generating means of generating weights by the transmission lines using the antennas based upon the transmission line information corrected by the correcting means, and a multiplying means of multiplying the signals to be transmitted by the transmitting means by the weights.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供即使对于具有不同数量的天线的接收机执行波束形成，能够从波束形成中获得充分的益处的无线电通信装置。解决方案：无线电通信装置包括分别连接到天线的多个接收装置，分别连接到天线时发送已知信号的多个发送装置，基于天线估计传输线的估计装置，接收装置已经通过天线接收和发现传输线路估计值;检测装置，用于解调接收装置已经接收的信号，并从解调数据检测关于多条传输线路的传输线信息;校正装置，基于传输线估计值的传输线路信息;基于由校正装置校正的传输线路信息，使用天线的传输线路产生加权的生成装置，以及乘法装置，意思是th e重量。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008301203A Radio communication apparatus 有权
标题翻译：无线电通信设备
公开(公告)号：JP2008301203A
公开(公告)日：2008-12-11
申请号：JP2007145350
申请日：2007-05-31
申请人： Toshiba Corp , 株式会社東芝
发明人： KIKUCHI SHOHEI , TANABE YASUHIKO
IPC分类号： H04B7/04 , H04B7/06 , H04B7/08 , H04J99/00
CPC分类号： H04B7/0617
摘要： PROBLEM TO BE SOLVED: To suppress the deterioration of a transmission characteristic in beam forming without increasing an operational amount.
SOLUTION: A radio communication apparatus for performing transmission beam forming includes: a receiving means (101) for receiving the estimation value of a propagation response; a calculating means (103) for calculating a weight matrix to be used for the transmission beam forming, based on the estimation value; a correcting means (104) for correcting a partial component among the components of the weight matrix; and beam forming means (106, 107-1 to 107-M, 108-1 to 108-M) for performing beam forming by the weight matrix corrected by the correcting means, and performing radio transmission.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：抑制波束形成中的传输特性的劣化而不增加操作量。解决方案：用于执行传输波束形成的无线电通信装置包括：接收装置（101），用于接收传播响应的估计值; 计算装置，用于基于估计值计算要用于发送波束形成的权重矩阵; 校正装置，用于校正所述权重矩阵的分量中的部分分量; 以及波束形成装置（106,107-1至107-M，108-1至108-M），用于通过由校正装置校正的权重矩阵执行波束形成，并执行无线电传输。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008294660A Wireless receiver and method 审中-公开
标题翻译：无线接收机和方法
公开(公告)号：JP2008294660A
公开(公告)日：2008-12-04
申请号：JP2007136892
申请日：2007-05-23
申请人： Toshiba Corp , 株式会社東芝
发明人： HARADA SHINYA , TANABE YASUHIKO , MORI HIROKI , EGASHIRA KEISHIN , SATO KAZUMI
IPC分类号： H04B7/04 , H04J99/00
摘要： PROBLEM TO BE SOLVED: To achieve high-performance reception.
SOLUTION: A wireless receiver is equipped with a plurality of antennae 101a to 101b, a plurality of variable gain amplifiers 103a to 103b which are disposed correspondingly one-to-one with the plurality of the antennae and varies gain of a received signal to obtain a gain receiving signal, a plurality of converters 104a to 104b which are disposed correspondingly one-to-one with the plurality of the variable gain amplifiers to convert the corresponding gain receiving signal into a digital signal, a first control means 105 which controls gain of the plurality of the variable gain amplifiers so that a receiving power value of a first signal falls within a dynamic range when having received the first signal contained in the received signal, and second control means 105, 106, 107, 110 and 111 which controls the gains of the plurality of the variable gain amplifiers so that a receiving power value of a second signal falls within a dynamic range of each converter only in cases where a predetermined condition is not satisfied when having received the second signal contained in the received signal.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：实现高性能接收。解决方案：无线接收机配备有多个天线101a至101b，多个可变增益放大器103a至103b，其与多个天线相对地一一对应设置，并且改变接收信号的增益以获得增益接收信号，多个转换器104a至104b，其与多个可变增益放大器相对应地一一对应地设置，以将相应的增益接收信号转换为数字信号;第一控制装置105，其控制多个可变增益放大器的增益，使得当接收到包含在接收信号中的第一信号时，第一信号的接收功率值落入动态范围内，以及第二控制装置105,106,107,110和111，控制多个可变增益放大器的增益，使得第二信号的接收功率值仅在每个转换器的动态范围内，只有在pred 当已经接收到包含在接收信号中的第二信号时，不满足条件条件。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008028729A Radio receiver and radio rceiving method 审中-公开
标题翻译：无线接收机和无线射频方法
公开(公告)号：JP2008028729A
公开(公告)日：2008-02-07
申请号：JP2006199570
申请日：2006-07-21
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKEDA DAISUKE , TANABE YASUHIKO
IPC分类号： H04J11/00 , H04B7/005 , H04J1/00
摘要： PROBLEM TO BE SOLVED: To conduct a very precise transmission line estimation reducing a circuit scale and an operation quantity.
SOLUTION: A radio receiver is provided with a multiplication means 105 and a division means 106. The multiplication means 105 multiplies a known signal converted into a frequency waveform by a known series. The division means 106 divides a plurality of subcarriers included in a period of 1 symbol of the known signal existing a signal among the multiplied known signals by a unit of exponentiation pieces of 2 so as for at least one subcarrier or more to overlap with regard to unit adjacent each other. Furthermore, the radio receiver is provided with a transformation means 107 to conduct a discrete cosine transformation of a subcarrier signal each unit, a filter 108 to eliminate the noise component of a plurality of subcarrier signals conducted by the discrete cosine transformation, a transformation means 109 to conduct an inverse discrete cosine transformation of a plurality of filtered subcarrier signals each unit, and a synthesizing means 110 to conduct a weight synthesizing to obtain one subcarrier signal or more between two different units conducted by the inverse discrete cosine transformation corresponding to the overlapped subcarriers.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：进行减少电路规模和操作量的非常精确的传输线估计。解决方案：无线电接收机设置有乘法装置105和除法装置106.乘法装置105将已转换成频率波形的已知信号乘以已知序列。分割装置106将已知信号的已知信号的1个符号的1个符号的周期中包含的多个副载波在乘法的已知信号中乘以2的乘法单位，以便至少一个子载波或更多的子载波相对于单位相邻。此外，无线电接收机设置有转换装置107，用于对每个单元进行子载波信号的离散余弦变换，滤波器108以消除由离散余弦变换进行的多个子载波信号的噪声分量;变换装置109 对每个单元进行多个经滤波的子载波信号的逆离散余弦变换，以及合成装置110进行加权合成，以获得通过对应于重叠子载波的逆离散余弦变换进行的两个不同单元之间的一个子载波信号。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008017145A Radio communication method using ofdm, and ofdm receiver 有权
标题翻译：使用OFDM的无线电通信方法和OFDM接收机
公开(公告)号：JP2008017145A
公开(公告)日：2008-01-24
申请号：JP2006185878
申请日：2006-07-05
申请人： Toshiba Corp , 株式会社東芝
发明人： EGASHIRA KEISHIN , TANABE YASUHIKO
IPC分类号： H04J11/00 , H04B7/005 , H04L27/00
CPC分类号： H04L27/2647 , H04L5/0007 , H04L5/0048 , H04L27/261
摘要： PROBLEM TO BE SOLVED: To compensate IQ imbalance by estimating an amount of mutual interference between paired subcarriers due to IQ imbalance of an orthogonal modulator without using a specific preamble signal. SOLUTION: An OFDM signal includes first OFDM symbol and a second OFDM symbol each having a first transmission pilot signal and a second transmission pilot signal allocated to the paired subcarriers located symmetrically on a frequency axis; and is non-zero in a difference between a product of a first transmission pilot signal and a complex conjugate of a fourth transmission pilot signal and a product of a third transmission pilot signal and a product of a complex conjugate of a second transmission pilot signal. Influences of amplitude error and phase error are compensated with respect to a received OFDM signal by transmitting the OFDM signal, extracting first and second received pilot signals corresponding to a first subcarrier into intervals of the first and second OFDM symbols in the received OFDM signal on a receiving side, estimating coefficients representing change components and interference components of an amplitude and a phase produced in each carrier, and estimating IQ imbalance characteristics produced on the OFDM signal at the time of orthogonal modulation from each coefficient. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过估计由于正交调制器的IQ不平衡而导致的成对子载波之间的相互干扰的量而不使用特定的前导码信号来补偿IQ不平衡。解决方案：OFDM信号包括第一OFDM符号和第二OFDM符号，每个OFDM符号具有分配给对称于频率轴上的成对副载波的第一传输导频信号和第二传输导频信号; 并且在第一传输导频信号的乘积与第四传输导频信号的复共轭与第三传输导频信号的乘积与第二传输导频信号的复共轭的乘积之间的差中是不为零。通过发送OFDM信号，相对于所接收的OFDM信号来补偿幅度误差和相位误差的影响，在接收到的OFDM信号中，将对应于第一子载波的第一和第二接收导频信号提取到接收的OFDM信号中的第一和第二OFDM符号的间隔中估计表示每个载波产生的幅度和相位的变化分量和干扰分量的系数，以及估计在每个系数正交调制时在OFDM信号上产生的IQ不平衡特性。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2005341317A Wireless communication apparatus 审中-公开
标题翻译：无线通信设备
公开(公告)号：JP2005341317A
公开(公告)日：2005-12-08
申请号：JP2004158335
申请日：2004-05-27
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKEDA DAISUKE , TAKAGI MASAHIRO , AOKI TSUGUHIDE , TANABE YASUHIKO , DEGUCHI NORITAKA
IPC分类号： H04J99/00 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/26 , H04L1/06 , H04J15/00
CPC分类号： H04L1/06 , H04B7/0669 , H04B7/0671 , H04B7/0691 , H04B7/0697 , H04B7/0822 , H04B7/0868 , H04B7/0891 , H04B7/0894
摘要： PROBLEM TO BE SOLVED: To provide a technology of capable of easily carrying out processing requiring high immediacy as a requirement at a receiver side in a wireless communication system using a plurality of antennas at least for transmission.
SOLUTION: A wireless communication apparatus for carrying out transmission by each transmission unit including a plurality of symbols uses a plurality of the antennas to transmit a plurality of the symbols other than the final N symbols (N is an integer of 1 or over) of the transmission unit and uses one antenna to transmit the final N symbols of the transmission unit.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种技术，其能够在至少用于传输的使用多个天线的无线通信系统中容易地执行需要高直接性的处理在接收机侧的要求。解决方案：用于由包括多个符号的每个发送单元进行发送的无线通信装置使用多个天线来发送除了最后N个符号之外的多个符号（N是1或更大的整数）），并且使用一个天线来发送传输单元的最后N个符号。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005192000A Multicarrier communication system, and transmitter, receiver, transmission method, and reception method used for same system 有权
标题翻译： MULTICARRIER通信系统和发射机，接收机，传输方法和用于同一系统的接收方法
公开(公告)号：JP2005192000A
公开(公告)日：2005-07-14
申请号：JP2003432225
申请日：2003-12-26
申请人： Toshiba Corp , 株式会社東芝
发明人： KOBAYASHI TAKAHIRO , TANABE YASUHIKO
IPC分类号： H04J11/00 , H04B1/707 , H04B1/7097
摘要： PROBLEM TO BE SOLVED: To provide a multicarrier communication system which reduces an interference between sub-carriers.
SOLUTION: In a transmitter, code spreading is performed by copying modulation symbols for a number of times corresponding to a spreading factor and multiplying the copied symbols by random patterns. Inverse Fourier transform is performed to the signal after the code spreading, its phase is shifted by an amount of phase in proportion to the spreading factor by every OFDM symbol constituting the modulation symbol, and the resultant signal is transmitted to a receiver. The influence of the interference by the adjacent sub-carrier is reduced by rotating the phase of the sub-carrier by an amount corresponding to the amount of phase shifted on the transmitting side, multiplying every sub-carrier by the random patterns and adding a plurality of OFDM symbols constituting the modulation signal on the receiving side.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供减少子载波之间的干扰的多载波通信系统。解决方案：在发射机中，通过复制对应于扩频因子的次数的调制符号并通过随机模式将复制的符号相乘来执行码扩频。对代码扩展后的信号进行逆傅立叶变换，其相位按照构成调制符号的每个OFDM符号与扩展因子成比例地移位相位量，并将所得到的信号发送到接收机。通过使副载波的相位旋转与发送侧的相移量对应的量来减少相邻副载波的干扰的影响，将每个子载波乘以随机模式，并且将多个的OFDM符号构成接收侧的调制信号。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005020041A Wireless phone and wireless communication system 审中-公开
标题翻译：无线电话和无线通信系统
公开(公告)号：JP2005020041A
公开(公告)日：2005-01-20
申请号：JP2003177665
申请日：2003-06-23
申请人： Toshiba Corp , 株式会社東芝
发明人： ITO TAKAYOSHI , TANABE YASUHIKO , WAKUTSU TAKASHI , IBE HIROYUKI , ONO NAOKO , TOYODA TAKEHIKO , SEKIGUCHI TAKAKIMI , HARADA SHINYA
IPC分类号： H04W48/04 , H04W52/02 , H04Q7/38
CPC分类号： Y02D70/00
摘要： PROBLEM TO BE SOLVED: To provide a technology of surely controlling the call without losing the convenience of users and to reduce of the power consumption of the terminals.
SOLUTION: When an interference radio wave detection section 106 detects an interference radio wave, an operating mode control section 107 responds to the detection to transmit an operating mode control signal to the terminal control section 105 so as to prevent base station searching for carrying out positional information registration or the like. The terminal control section 105 stops the transmission of a control signal having so far been transmitted to a base station in response to the operating mode control signal.
COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2014119343A Arrival direction estimating device and method 有权
标题翻译：到达方向估计装置和方法
公开(公告)号：JP2014119343A
公开(公告)日：2014-06-30
申请号：JP2012274483
申请日：2012-12-17
申请人： Toshiba Corp , 株式会社東芝
发明人： AOKI TOMOMI , TANABE YASUHIKO
IPC分类号： G01S3/46 , G01S3/74 , H01Q3/26
摘要： PROBLEM TO BE SOLVED: To realize reduction of operation quantity while maintaining estimation accuracy.SOLUTION: An arrival direction estimating device relating to one embodiment in the disclosure includes multiple antenna elements, a matrix calculation part, an eigenvalue decomposition part, a wave number estimation part, a feature quantity calculation part and a method switching part. The antenna elements obtain reception signals by receiving incoming waves. The matrix calculation part uses the reception signals to calculate a correlation matrix. The eigenvalue decomposition part performs eigenvalue decomposition of the correlation matrix and obtains eigenvalues. The wave number estimation part estimates the number of incoming waves included in the reception signals, on the basis of the eigenvalues. The feature quantity calculation part calculates a first feature quantity for each of the number of incoming waves, which is obtained for each eigenvector corresponding to each eigenvalue of the incoming waves and shows dispersion of each element of the vectors. The method switching part generates: a first instruction for using a first method to estimate an arrival direction of the incoming waves when the first feature quantity is equal to or less than a first threshold; and a second instruction for using a second method to estimate the arrival direction of the incoming waves when the first feature quantity is greater than the first threshold.
摘要翻译：要解决的问题：在保持估计精度的同时实现操作量的减少。解决方案：本公开涉及一个实施例的到达方向估计装置包括多个天线元件，矩阵计算部分，特征值分解部分，波数估计部分，特征量计算部和方法切换部。天线元件通过接收入射波获得接收信号。矩阵计算部分使用接收信号来计算相关矩阵。特征值分解部分执行相关矩阵的特征值分解，并获得特征值。波数估计部基于特征值来估计包含在接收信号中的入射波的数量。特征量计算部分针对与输入波的每个特征值相对应的每个特征向量获得的每个入射波的每一个计算第一特征量，并且显示向量的每个元素的色散。方法切换部生成：当第一特征量等于或小于第一阈值时，使用第一方法来估计入射波的到达方向的第一指令; 以及第二指令，当第一特征量大于第一阈值时，使用第二方法估计入射波的到达方向。

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