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1. 发明授权

EP2141822B1 EQUALIZER CONTROL APPARATUS, EQUALIZER CONTROL METHOD, AND WIRELESS TERMINAL HAVING THAT CONTROL APPARATUS 有权
标题翻译：均衡器控制装置，均衡器控制方法以及具有该控制装置的无线终端
公开(公告)号：EP2141822B1
公开(公告)日：2016-05-04
申请号：EP07742093.3
申请日：2007-04-20
申请人： Fujitsu Limited
发明人： ITO, Akira , HASEGAWA, Tsuyoshi
IPC分类号： H04B1/712 , H04L25/02 , H04L25/03
CPC分类号： H04L25/03038 , H04B1/712 , H04L25/0202 , H04L25/0218 , H04L25/03292

2. 发明公开

EP2775644A1 WIRELESS COMMUNICATION APPARATUS AND COMMUNICATION METHOD 审中-公开
标题翻译： DRAHTLOSE KOMMUNIKATIONSVORRICHTUNG UND KOMMUNIKATIONSVERFAHREN
公开(公告)号：EP2775644A1
公开(公告)日：2014-09-10
申请号：EP11875057.9
申请日：2011-11-02
申请人： Fujitsu Limited
发明人： HASEGAWA, Tsuyoshi
IPC分类号： H04J99/00 , H04B7/04 , H04J11/00
CPC分类号： H04L25/0242 , H04B7/04 , H04B7/08 , H04B7/0854 , H04L27/2647
摘要： A wireless communication apparatus receiving a signal transmitted from multiple transmission antennas by multiple reception antennas, includes a rotational component removal unit to remove rotational components from a channel matrix representing a characteristic of a transmission path between the multiple transmission antennas and reception antennas, the channel matrix being generated based on the reception signal; multiple signal separation units including at least a signal separation unit to use a first signal separation algorithm for a demodulation process of the reception signal, and a signal separation unit to use a second signal separation algorithm for the demodulation process of the reception signal; and a control unit to execute control for determining one of the multiple signal separation units to be used for the demodulation process of the reception signal, based on a predetermined component of the channel matrix having the rotational components removed.
摘要翻译：接收由多个接收天线从多个发送天线发送的信号的无线通信装置包括旋转分量去除单元，用于从表示多个发送天线与接收天线之间的传输路径的特性的信道矩阵中去除旋转分量，信道矩阵基于接收信号生成; 多个信号分离单元至少包括信号分离单元，以使用用于接收信号的解调处理的第一信号分离算法;以及信号分离单元，用于使用第二信号分离算法进行接收信号的解调处理; 以及控制单元，用于基于去除了旋转分量的信道矩阵的预定分量来执行用于确定用于接收信号的解调处理的多个信号分离单元之一的控制。

3. 发明公开

EP3585020A1 BASE STATION, TERMINAL, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD 审中-公开
公开(公告)号：EP3585020A1
公开(公告)日：2019-12-25
申请号：EP17896863.2
申请日：2017-02-15
申请人： Fujitsu Limited
发明人： HASEGAWA, Tsuyoshi , SHIMOMURA, Tsuyoshi
IPC分类号： H04L27/26
摘要： A base station (20) which switches an uplink signal and a downlink signal in a time-division manner to perform communication with a terminal, includes a generator (222), a transmitter (240a), a first receiver (240a), and a second receiver (240b). The generator multiplexes a plurality of transmission signals assigned to respective pieces of wireless resource with different time lengths to generate a wireless signal. The transmitter transmits the wireless signal to the terminal at transmission timing of the downlink signal in a first frequency band. The first receiver receives the uplink signal transmitted from the terminal at transmission timing of the uplink signal in the first frequency band. The second receiver receives a response signal corresponding to at least one transmission signal, out of response signals indicating whether the respective transmission signals included in the wireless signal have properly been received in the terminal, in a second frequency band different from the first frequency band.

4. 发明公开

EP2141822A1 EQUALIZER CONTROL APPARATUS, EQUALIZER CONTROL METHOD, AND WIRELESS TERMINAL HAVING THAT CONTROL APPARATUS 有权
标题翻译：均衡器控制装置，均衡器控制方法以及具有该控制装置的无线终端
公开(公告)号：EP2141822A1
公开(公告)日：2010-01-06
申请号：EP07742093.3
申请日：2007-04-20
申请人： Fujitsu Limited
发明人： ITO, Akira , HASEGAWA, Tsuyoshi
IPC分类号： H04B1/707
CPC分类号： H04L25/03038 , H04B1/712 , H04L25/0202 , H04L25/0218 , H04L25/03292
摘要： The present invention has its object to enhance the accuracy of calculation of a tap coefficient in an equalizer, thereby improving the reception characteristic. For this purpose, a channel estimation value of each path timing is determined, a path timing, the channel estimation value of which is to be set to zero, is determined based on a reception power of each path timing and a predetermined power threshold (P0), and a channel estimation value of the detected path timing to zero.
摘要翻译：本发明的目的是提高均衡器中抽头系数的计算精度，从而改善接收特性。为此，确定每个路径定时的信道估计值，根据每个路径定时的接收功率和预定的功率阈值（P0）来确定其信道估计值将被设置为零的路径定时），并且检测到的路径定时的信道估计值为零。

5. 发明公开

EP2731288A1 BASE STATION, WIRELESS TERMINAL, CHANNEL VALUE ESTIMATION METHOD, PILOT SIGNAL TRANSMISSION METHOD, AND WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：基站，无线终端，用于估计信道值导频信号传输方法和无线通讯系统
公开(公告)号：EP2731288A1
公开(公告)日：2014-05-14
申请号：EP11869014.8
申请日：2011-07-06
申请人： Fujitsu Limited
发明人： HASEGAWA, Tsuyoshi
IPC分类号： H04J99/00 , H04B7/04 , H04W16/28
CPC分类号： H04W24/06 , H04B7/0413 , H04B7/0802 , H04B7/0848 , H04L25/0204 , H04L25/0232
摘要： To reduce a decrease in data transmission efficiency.
A measuring unit (1a) measures channel values of propagation channels based on a pilot signal transmitted from a wireless terminal (2). An interpolation coefficient calculating unit (1b) calculates interpolation coefficients used to estimate channel values for one of antennas (2ca to 2cc) of the wireless terminal (2) by using channel values for the rest of the antennas (2ca to 2cc) of the wireless terminal (2), which channel values are measured by the measuring unit (1a). An estimate value calculating unit (1c) estimates the channel values for the one of the antennas (2ca to 2cc) of the wireless terminal (2) based on the interpolation coefficients calculated by the interpolation coefficient calculating unit (1b) and the channel values for the rest of the antennas (2ca to 2cc) of the wireless terminal (2) measured by the measuring unit (1a).
摘要翻译：为了减少在数据传输效率的降低。测量单元（1a）的测量基于从无线终端（2）的导频信号的反式mitted传播信道的信道值。一个插值系数计算部（1b）中，通过使用信道值用于天线的其余部分计算用于估计的天线的一个信道值的插值系数的无线终端（2）的色（2ca〜2毫升）的无线的色（2ca〜2 cc）的终端（2），whichChannel值由测量单元（1a）中进行测定。（2）基于由所述插值系数计算单元计算的内插系数的估计值计算部（1c）的估计天线的一个色（2ca〜2毫升）的无线终端的信道值（1b）和用于信道值天线的无线终端的其余色（2ca〜2毫升）（2）由所述测量单元（1a）中进行测定。

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