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41. 发明授权

US08824605B2 Receiving device, receiving method, receiving program, and processor 有权
标题翻译：接收设备，接收方法，接收程序和处理器
公开(公告)号：US08824605B2
公开(公告)日：2014-09-02
申请号：US13583187
申请日：2011-03-02
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/06 , H04L25/03 , H04B17/00
CPC分类号： H04L25/03006 , H04B17/309 , H04B17/345 , H04B17/391 , H04L2025/03414
摘要： A propagation channel estimation unit estimates a propagation channel estimation value. A symbol replica generation unit generates a symbol replica that is modulated symbol of a demodulated information. A signal extraction unit extracts, in an arbitrary time duration, each subcarrier component of a received signal in which an interference signal was removed, the extraction being made based on the propagation channel estimation value and the symbol replica. A demodulator demodulates a signal of each subcarrier component in the received signal, the demodulation being made based on signal during the time duration extracted by the signal extraction unit.
摘要翻译：传播路径估计单元估计传播路径估计值。符号副本生成单元生成作为解调信息的调制符号的码元副本。信号提取单元在任意的持续时间内，提取除去干扰信号的接收信号的各子载波分量，根据传播路径估计值和符号复制品进行提取。解调器解调接收信号中的每个子载波分量的信号，基于由信号提取单元提取的持续时间期间的信号进行解调。

42. 发明申请

US20130308733A1 RECEIVER APPARATUS, RECEPTION METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
标题翻译：接收装置，接收方法，通信系统和通信方法
公开(公告)号：US20130308733A1
公开(公告)日：2013-11-21
申请号：US13982912
申请日：2012-01-13
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04L25/022 , H04L27/2649
摘要： A receiver apparatus includes a channel estimator (b106) to perform channel estimation. The channel estimator includes an interim channel impulse estimating unit (b106-1) that calculates an interim channel impulse response estimation value, a path extracting unit (b106-3) that extracts a path for use in calculation of a channel impulse response estimation value from among paths forming the interim channel impulse response estimation values, a channel impulse response estimating unit (b106-4) that calculates the channel impulse response estimation value using the path extracted by the path extracting unit, and a frequency response estimating unit (b106-5) that converts the channel impulse response estimation value into a frequency response estimation value by time-frequency transforming the channel impulse response estimation value. In this way, a receiver apparatus capable of performing accurate channel estimation results.
摘要翻译：接收机装置包括执行信道估计的信道估计器（b106）。信道估计器包括计算中间信道脉冲响应估计值的临时信道脉冲估计单元（b106-1），提取用于计算信道脉冲响应估计值的路径的路径提取单元（b106-3）在形成中间信道脉冲响应估计值的路径中，使用由路径提取单元提取的路径计算信道脉冲响应估计值的信道脉冲响应估计单元（b106-4）和频率响应估计单元（b106-5）），其通过对信道脉冲响应估计值进行时间频率变换来将信道脉冲响应估计值转换为频率响应估计值。以这种方式，能够执行准确的信道估计结果的接收机装置。

43. 发明申请

US20130182802A1 RECEIVER APPARATUS, RECEPTION METHOD, AND RECEPTION PROGRAM 有权
标题翻译：接收装置，接收方法和接收方案
公开(公告)号：US20130182802A1
公开(公告)日：2013-07-18
申请号：US13876500
申请日：2011-08-10
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04J11/0063 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/025 , H04L25/0256
摘要： A receiver apparatus includes a propagation channel estimating unit that estimates a propagation channel. The propagation channel estimating unit includes a path detector unit that repeatedly performs a process of detecting paths in the order of increase in a propagation channel goodness of fit. The receiver apparatus that estimates a propagation channel at a high accuracy level with a small amount of calculation operation involved is thus provided.
摘要翻译：接收机装置包括估计传播路径的传播路径估计单元。传播路径估计单元包括：路径检测单元，重复执行以传播路径拟合度的增加顺序检测路径的处理。因此，提供了以少量计算操作来估计高精度水平的传播路径的接收机装置。

44. 发明授权

US08446999B2 Receiving apparatus and communication system 有权
标题翻译：接收设备和通信系统
公开(公告)号：US08446999B2
公开(公告)日：2013-05-21
申请号：US12988252
申请日：2009-04-13
申请人： Osamu Nakamura , Toshizo Nogami , Ryota Yamada
发明人： Osamu Nakamura , Toshizo Nogami , Ryota Yamada
IPC分类号： H04B7/10
CPC分类号： H04B7/0845 , H04L25/03012 , H04L25/067
摘要： A receiving antenna diversity effect is improved by equalizing the likelihood while exchanging the likelihood among a plurality of equalizers. A receiving apparatus (300) which receives radio signals using antennas (301-1 to 301-M), includes: pilot separation sections (304-1 to 304-M) separating a pilot signal and a received data signal from the radio signals; a channel estimation section (305) calculating a channel estimation value corresponding to each of the antennas (301-1 to 301-M) according to the pilot signal; and a reception processing section (306) performing signal detection for the received data signal corresponding to each of the antennas (301-1 to 301-M) and having a plurality of equalization sections each generating likelihood information according to the received data signal and the channel estimation value, wherein any one of the equalization sections generates likelihood information using the likelihood information generated by another equalization section and also outputs the generated likelihood information to another equalization section.
摘要翻译：通过在多个均衡器之间交换似然性的同时平衡似然性来改善接收天线分集效应。使用天线（301-1〜301-M）接收无线信号的接收装置（300）包括：从无线信号分离导频信号和接收数据信号的导频分离部（304-1〜304-M）信道估计部（305），根据导频信号计算与各天线（301-1〜301-M）对应的信道估计值; 以及对与所述天线（301-1〜301-M）对应的接收数据信号进行信号检测的接收处理部（306），具有多个均衡部，各均衡部根据接收到的数据信号生成似然信息，信道估计值，其中任何一个均衡部分使用由另一个均衡部分生成的似然信息来生成似然信息，并将所生成的似然信息输出到另一个均衡部分。

45. 发明申请

US20120243628A1 RECEPTION DEVICE, RECEPTION METHOD, AND RECEPTION PROGRAM 有权
标题翻译：接收设备，接收方法和接收程序
公开(公告)号：US20120243628A1
公开(公告)日：2012-09-27
申请号：US13514233
申请日：2010-08-11
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/28 , H04B1/10
CPC分类号： H04B7/0837 , H04J11/004
摘要： A channel estimator estimates a channel estimation value. A symbol replica generator generates a symbol replica that is a modulation symbol of the information demodulated. A signal extractor extracts, in a plurality of time durations, each of subcarrier elements of the reception signal from which an interference is cancelled, based on the channel estimation and the symbol replica. A demodulator demodulates signals on the subcarrier elements of the reception signal, based on signals in the plurality of time durations which are extracted by the signal extractor.
摘要翻译：信道估计器估计信道估计值。符号复制生成器生成作为解调信息的调制符号的符号副本。信号提取器基于信道估计和符号复制品，在多个时间间隔中提取干扰被消除的接收信号的每个子载波元素。解调器基于由信号提取器提取的多个持续时间中的信号来解调接收信号的子载波元件上的信号。

46. 发明申请

US20110305286A1 TRANSMISSION APPARATUS, TRANSMISSION METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
标题翻译：传输装置，传输方法，通信系统和通信方法
公开(公告)号：US20110305286A1
公开(公告)日：2011-12-15
申请号：US13143281
申请日：2010-01-07
申请人： Kazuyuki Shimezawa , Toshizo Nogami , Takashi Yoshimoto , Ryota Yamada , Katsuya Kato
发明人： Kazuyuki Shimezawa , Toshizo Nogami , Takashi Yoshimoto , Ryota Yamada , Katsuya Kato
IPC分类号： H04L27/00 , H04L27/28
CPC分类号： H04L27/2607 , H04L27/2646 , H04L27/2688
摘要： In a transmission apparatus which multicarrier-modulates and transmits symbols, which are basic units of digital signals, a subcarrier in which a symbol is arranged in a first multicarrier symbol having a first guard interval and a subcarrier in which a symbol is arranged in a second multicarrier symbol having a second guard interval longer than the first guard interval are scattered among a plurality of subcarriers constituting a multicarrier at the same time. Therefore, it is possible to improve the resistance to inter-symbol interference without substantially degrading transmission efficiency.
摘要翻译：在作为数字信号的基本单位的多载波调制发送符号的发送装置中，符号被配置在具有第一保护间隔的第一多载波符号的子载波中，在第二多载波符号中配置符号的子载波具有比第一保护间隔长的第二保护间隔的多载波符号在同时构成多载波的多个子载波中散布。因此，可以在不显着降低传输效率的情况下提高符号间干扰的抗性。

47. 发明申请

US20110007784A1 RELAY DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 审中-公开
标题翻译：继电器，通信系统和通信方法
公开(公告)号：US20110007784A1
公开(公告)日：2011-01-13
申请号：US12918027
申请日：2009-02-13
申请人： Osamu Nakamura , Toshizo Nogami , Ryota Yamada
发明人： Osamu Nakamura , Toshizo Nogami , Ryota Yamada
IPC分类号： H04B7/14
CPC分类号： H04B7/2606 , H04B7/15542 , H04L5/0007 , H04L5/0028 , H04L25/0228 , H04L25/03159 , H04L25/067 , H04L25/20 , H04L27/2614 , H04L27/36 , H04L2025/03414
摘要： Even when an amplifier has a comparatively narrow linear region in a terminal, it is possible to suppress degradation of the transmission characteristic by using single-carrier transmission between the terminal and a relay device while using multi-carrier transmission between the relay device and a base station on an uplink of a communication system. The relay station (1) includes: a single-carrier signal receiving portion (12) which receives a single-carrier signal from the terminal and performs signal processing; a converting portion (13) which converts a time region symbol output from the single-carrier signal receiving portion (12) into a frequency domain symbol; and a multi-carrier signal transmitting portion (14) which makes the symbol converted by the converting portion (13) to be a multi-carrier signal and transmits the multi-carrier signal to the base station.
摘要翻译：即使当放大器在终端中具有相对较窄的线性区域时，也可以通过在终端和中继设备之间使用单载波传输来抑制传输特性的劣化，同时在中继设备和基站之间使用多载波传输站在通信系统的上行链路上。中继站（1）包括：单载波信号接收部分（12），其从终端接收单载波信号并执行信号处理; 转换部分，其将从单载波信号接收部分（12）输出的时域符号转换成频域符号; 以及使由转换部分（13）转换的符号为多载波信号的多载波信号发送部分（14），并将多载波信号发送到基站。

48. 发明申请

US20090285322A1 RADIO TRANSMITTER, RADIO COMMUNICATION SYSTEM, AND RADIO TRANSMISSION METHOD 有权
标题翻译：无线电发射机，无线电通信系统和无线电传输方法
公开(公告)号：US20090285322A1
公开(公告)日：2009-11-19
申请号：US12092048
申请日：2006-10-31
申请人： Kimihiko Imamura , Ryota Yamada
发明人： Kimihiko Imamura , Ryota Yamada
IPC分类号： H04B7/02
CPC分类号： H04W72/04 , H04B7/04 , H04B7/0413 , H04B7/0452 , H04B7/0602 , H04B7/0608 , H04B7/0671 , H04B7/0689 , H04B7/12 , H04L5/0023 , H04L5/0057 , H04L5/0094 , H04L27/2601 , H04L2025/03414 , H04L2025/03426
摘要： A radio transmitter of the present invention includes a scheduler for assigning a communication time or a communication frequency to each radio receiver based on quality information of a received signal transmitted by the radio receiver, a transmission circuit controller for transmitting either a frequency diversity region or a multiuser diversity region to be selected with respect to each chunk, and a transmission circuit for applying different delay times to signals of a plurality of transmission antennas based on a transmission result of the transmission circuit controller.
摘要翻译：本发明的无线发射机包括：调度器，用于根据由无线接收机发送的接收信号的质量信息，向每个无线接收机分配通信时间或通信频率;发送电路控制器，用于发送频率分集区域或多个用户分集区域，以及根据发送电路控制器的发送结果，对多个发送天线的信号应用不同的延迟时间的发送电路。

49. 发明申请

US20090268686A1 WIRELESS TRANSMITTER AND WIRELESS TRANSMISSION METHOD 有权
标题翻译：无线发射机和无线传输方法
公开(公告)号：US20090268686A1
公开(公告)日：2009-10-29
申请号：US12159075
申请日：2006-12-20
申请人： Ryota Yamada , kimihiko Imamura
发明人： Ryota Yamada , kimihiko Imamura
IPC分类号： H04W72/04 , H04B7/02
CPC分类号： H04B7/0673 , H04B1/7115 , H04L1/0003 , H04L1/0009 , H04L27/2601
摘要： A wireless transmitter of the present invention includes n (n being an integer of 2 or more) transmission antennas, a transmission circuit controller that, based on reception qualities reported from terminals, assigns a chunk to each terminal, and sends a phase-control report signal that determines whether to perform phase-control, to that chunk, and a transmission circuit unit that, to each of the n transmission antennas, performs phase-control based on the phase-control report signal, and applies a delay that obtains an optimum transmission diversity effect among a plurality of transmission diversity effects.
摘要翻译：本发明的无线发射机包括n（n为2以上的整数）发送天线，发送电路控制器，根据从终端报告的接收质量向每个终端分配块，并发送相位控制报告确定是否对该块进行相位控制的信号，以及发送电路单元，对于n个发送天线中的每一个，基于相位控制报告信号进行相位控制，并施加获得最佳值的延迟多个发送分集效应之间的发送分集效应。

50. 发明申请

US20090264076A1 TRANSMITTER FOR COMMUNICATIONS SYSTEM 有权
标题翻译：发信机通信系统
公开(公告)号：US20090264076A1
公开(公告)日：2009-10-22
申请号：US12097865
申请日：2006-12-19
申请人： Toshizo Nogami , Kimihiko Imamura , Ryota Yamada
发明人： Toshizo Nogami , Kimihiko Imamura , Ryota Yamada
IPC分类号： H04B1/00 , H04B7/00
CPC分类号： H04B7/0671 , H04B7/0452 , H04B7/0682 , H04B7/12
摘要： An rf signal transmitter for transmitting rf signals through a plurality of antennas is described, which comprises: a transmit section adapted to selectively set, with respect to an input signal, the initial phase of an output to at least one of said antennas depending on a time or frequency region used for communication and to provide delay to the output on an antenna-by-antenna basis and on the basis of a transmission timing or a transmission frequency; and a quality information receive section for receiving quality information from destination station, i.e., a wireless terminal unit, said quality information concerning the rf signal transmitted from said transmit section and received at said destination station.
摘要翻译：描述了一种用于通过多个天线发送rf信号的射频信号发射机，其包括：发射部分，其适于相对于输入信号有选择地将输出的初始相位设置为至少一个所述天线，这取决于用于通信的时间或频率区域，并且在天线基础上并基于发送定时或发送频率向输出提供延迟; 以及质量信息接收部分，用于从目的地站即无线终端单元接收关于从所述发送部分发送并在所述目的地站处接收的rf信号的质量信息的质量信息。

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