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    • 1. 发明授权
    • Radio communication apparatus
    • 无线通信装置
    • US08000379B2
    • 2011-08-16
    • US11917792
    • 2006-06-30
    • Takaaki KishigamiHiroshi Iwai
    • Takaaki KishigamiHiroshi Iwai
    • H04B1/00
    • H04B1/18H04B1/0458H04B2201/70701
    • An object of the invention is to stabilize the convergence operation at the automatic impedance matching time and ensure the reception quality in the convergence process in a fading environment in a radio communication apparatus which performs automatic impedance matching between an antenna and a Radio frequency section to decrease the impedance matching loss, for example, when the apparatus is brought close to a human body. A radio communication apparatus of the invention includes a Radio frequency section 3 which converts a received signal into a baseband signal, a variable impedance unit 2 which adjusts impedance between an antenna 1 and the Radio frequency section 3, a pilot signal extraction unit 4 which extracts a pilot signal from the baseband signal, a first channel compensation unit 5 which performs channel compensation using an output of the pilot signal extraction unit, an impedance control adequacy detection unit 7 which detects impedance control adequacy using an output of the first channel compensation unit, an impedance control unit 8 which controls the variable impedance unit 2 using an output of the impedance control adequacy detection unit, a second channel compensation unit 6 which performs channel compensation using the pilot signal, and a demodulation section 9 which performs the demodulation operation using an output of the second channel compensation unit.
    • 本发明的一个目的是在自动阻抗匹配时间稳定收敛操作,并且确保在天线和射频部分之间进行自动阻抗匹配的无线电通信装置的衰落环境中的收敛过程中的接收质量降低 阻抗匹配损失,例如当该装置靠近人体时。 本发明的无线通信装置具有将接收信号转换为基带信号的射频部3,调整天线1与射频部3之间的阻抗的可变阻抗部2,提取出导频信号提取部4 来自基带信号的导频信号,使用导频信号提取单元的输出进行信道补偿的第一信道补偿单元5,使用第一信道补偿单元的输出来检测阻抗控制充分性的阻抗控制适合度检测单元7, 阻抗控制单元8,其使用阻抗控制充分性检测单元的输出来控制可变阻抗单元2;第二信道补偿单元6,其使用导频信号进行信道补偿;以及解调单元9,其使用 输出第二通道补偿单元。
    • 2. 发明申请
    • RADIO COMMUNICATION APPARATUS
    • 无线电通信设备
    • US20090147834A1
    • 2009-06-11
    • US11917792
    • 2006-06-30
    • Takaaki KishigamiHiroshi Iwai
    • Takaaki KishigamiHiroshi Iwai
    • H04B1/707H04B1/06H04M1/00
    • H04B1/18H04B1/0458H04B2201/70701
    • An object of the invention is to stabilize the convergence operation at the automatic impedance matching time and ensure the reception quality in the convergence process in a fading environment in a radio communication apparatus which performs automatic impedance matching between an antenna and a Radio frequency section to decrease the impedance matching loss, for example, when the apparatus is brought close to a human body. A radio communication apparatus of the invention includes a Radio frequency section 3 which converts a received signal into a baseband signal, a variable impedance unit 2 which adjusts impedance between an antenna 1 and the Radio frequency section 3, a pilot signal extraction unit 4 which extracts a pilot signal from the baseband signal, a first channel compensation unit 5 which performs channel compensation using an output of the pilot signal extraction unit, an impedance control adequacy detection unit 7 which detects impedance control adequacy using an output of the first channel compensation unit, an impedance control unit 8 which controls the variable impedance unit 2 using an output of the impedance control adequacy detection unit, a second channel compensation unit 6 which performs channel compensation using the pilot signal, and a demodulation section 9 which performs the demodulation operation using an output of the second channel compensation unit.
    • 本发明的一个目的是在自动阻抗匹配时间稳定收敛操作,并且确保在天线和射频部分之间进行自动阻抗匹配的无线电通信装置的衰落环境中的收敛过程中的接收质量降低 阻抗匹配损失,例如当该装置靠近人体时。 本发明的无线通信装置具有将接收信号转换为基带信号的射频部3,调整天线1与射频部3之间的阻抗的可变阻抗部2,提取出导频信号提取部4 来自基带信号的导频信号,使用导频信号提取单元的输出进行信道补偿的第一信道补偿单元5,使用第一信道补偿单元的输出来检测阻抗控制充分性的阻抗控制适合度检测单元7, 阻抗控制单元8,其使用阻抗控制充分性检测单元的输出来控制可变阻抗单元2;第二信道补偿单元6,其使用导频信号进行信道补偿;以及解调单元9,其使用 输出第二通道补偿单元。
    • 4. 发明授权
    • Wireless communication apparatus and response control method
    • 无线通信装置和响应控制方法
    • US09276650B2
    • 2016-03-01
    • US13390359
    • 2010-08-27
    • Takaaki KishigamiIsamu Yoshii
    • Takaaki KishigamiIsamu Yoshii
    • G08C17/00H04B7/04H04W72/04H04L1/16H04L1/18H04L1/00
    • H04B7/0452H04L1/0025H04L1/1692H04L1/1861H04W72/042
    • A wireless communication apparatus and a response control method wherein in a case of applying Persistent Allocation (PA) to MU-MIMO, the increase in the resources to be used in the feedback can be precluded. In a terminal, a response control unit causes, based on the type of downstream allocation control information, on an error detection result obtained by an error detecting unit and on a response rule table, a response signal to be transmitted by use of an upstream response resource designated in the downstream allocation control information. In the response rule table used in reception of a notification of MU-MIMO reallocation, respective different types of response signals are associated with a first case where there are no errors in the received downstream data of the designated resource designated in the downstream allocation control information received before that notification, a second case where the notification of MU-MIMO reallocation is successfully received and further there are no errors in the received downstream data of the designated resource, and a third case where the notification of MU-MIMO reallocation is not successfully received and further there are any errors in the received downstream data of the designated resource.
    • 一种无线通信装置和响应控制方法,其中在对MU-MIMO应用持续分配(PA)的情况下,可以排除在反馈中使用的资源的增加。 在终端中,响应控制单元根据下游分配控制信息的类型,对由错误检测单元和响应规则表获得的错误检测结果,使用上行响应发送的响应信号 在下游分配控制信息中指定的资源。 在接收到MU-MIMO重分配通知中使用的响应规则表中,各个不同类型的响应信号与在下游分配控制信息中指定的指定资源的接收下游数据中没有错误的第一种情况相关联 在该通知之前接收到第二种情况,其中MU-MIMO重新分配的通知被成功接收,并且在所接收的指定资源的下游数据中还没有错误,并且第三种情况,其中MU-MIMO重分配的通知不成功 并且进一步在指定资源的所接收的下游数据中存在任何错误。
    • 5. 发明授权
    • Radar device
    • 雷达设备
    • US09097791B2
    • 2015-08-04
    • US13807189
    • 2011-07-01
    • Takaaki KishigamiHirohito MukaiYoichi Nakagawa
    • Takaaki KishigamiHirohito MukaiYoichi Nakagawa
    • G01S13/08G01S7/35G01S7/285G01S7/40G01S13/42G01S13/93
    • G01S7/35G01S7/285G01S7/4021G01S13/42G01S13/931
    • The disclosed technique includes transmitting a signal intermittently according to a transmission cycle having a predetermined transmission period and a non-transmission period; receiving the signal reflected from a target with reception antennas; and detecting the target from the reflected signal. A high-frequency transmission signal attenuated during the transmission period and a receipt signal received during the non-transmission period are combined together. A correlation value between a reference transmission signal and the receipt signal in the combined signal is calculated, and the amount of phase shift in an arbitrarily selected reception antenna is calculated from the correlation value of a reference reception antenna, and the correlation values of the other reception antennas. The phase component of the correlation value of the arbitrarily selected reception antenna is corrected on the basis of the amount of phase shift.
    • 所公开的技术包括根据具有预定发送周期和非发送周期的发送周期间歇地发送信号; 用接收天线接收从目标反射的信号; 并从反射信号中检测目标。 在发送期间衰减的高频发送信号和在非发送期间接收的接收信号组合在一起。 计算组合信号中的参考传输信号和接收信号之间的相关值,并根据参考接收天线的相关值计算任意选择的接收天线中的相移量,另一个的相关值 接收天线。 基于相移量来校正任意选择的接收天线的相关值的相位分量。
    • 9. 发明授权
    • Base station apparatus, transmission signal generating method, mobile station apparatus, and reception method
    • 基站装置,发送信号生成方法,移动站装置和接收方法
    • US08504108B2
    • 2013-08-06
    • US13559481
    • 2012-07-26
    • Takaaki KishigamiYoichi Nakagawa
    • Takaaki KishigamiYoichi Nakagawa
    • H04M1/00
    • H04W88/08H04B7/022H04B7/0626H04B7/0669H04B7/0689
    • A communication system has a base station control device and base station devices. The base station control device totalizes information on the number of base stations as the number of base station devices which can communicate with a mobile station device, makes Nb copies of a data frame, successively assigns integer values from 1 to Nb as stream numbers Ns to the data frames copied, and forms Nb copied data frames including Nb and Ns in header information. Copied data frames having different Ns in the header information are sent to base station devices. According to Ns and Nb, a base station device subjects the data in the copied data frame to temporal/spatial encoding to form a temporal/spatial encoding series. A mobile station device receives the temporal/spatial encoding series signal from each of the base station devices.
    • 通信系统具有基站控制装置和基站装置。 基站控制装置将关于基站数量的信息合计为可与移动台装置进行通信的基站装置的数量,使数据帧的Nb副本从1到Nb的整数值分配为流数Ns, 复制数据帧,并在标题信息中形成包括Nb和Ns的Nb复制数据帧。 在标题信息中具有不同N的复制数据帧被发送到基站装置。 根据Ns和Nb,基站设备使复制数据帧中的数据对时间/空间编码进行时间/空间编码系列。 移动站装置从各基站装置接收时间/空间编码序列信号。
    • 10. 发明授权
    • Multiantenna receiving device
    • 多天线接收装置
    • US08340226B2
    • 2012-12-25
    • US13360308
    • 2012-01-27
    • Yutaka MurakamiShutai OkamuraTakaaki Kishigami
    • Yutaka MurakamiShutai OkamuraTakaaki Kishigami
    • H03D1/00
    • H04L1/005H03M13/11H03M13/27H03M13/2957H04B7/04H04L1/1829H04L25/03318H04L25/067H04L2025/03426
    • A multiantenna receiving device is provided to make it possible to cope with both improvement in error rate characteristic and simplification in structure. The multiantenna receiving device is comprised of soft judgement output units for carrying out a soft judgement of a modulation signal in accordance with signal point distances between a plurality of candidate signal points with respect to a plurality of multiplexed modulation signals and a receiving signal, decoding units for obtaining digital data of the modulation signals by using the judged results obtained by the soft judgement output units, and signal point decreasing units for decreasing the number of the candidate signal points used in the soft judgement output units by recursively using a part of the digital data except self-modulation signals obtained by the decoding units.
    • 提供了一种多天线接收装置,以便能够应对错误率特性的提高和结构简化。 多天线接收装置包括软判断输出单元,用于根据多个候选信号点与多个复用调制信号和接收信号之间的信号点距离执行调制信号的软判断,解码单元 用于通过使用由软判断输出单元获得的判断结果获得调制信号的数字数据,以及信号点减少单元,用于通过递归地使用数字的一部分来减少软判断输出单元中使用的候选信号点的数量 除了由解码单元获得的自调制信号之外的数据。