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51. 发明授权

US08780805B2 Radio communication terminal and radio communication method 有权
标题翻译：无线电通信终端和无线电通信方法
公开(公告)号：US08780805B2
公开(公告)日：2014-07-15
申请号：US13376694
申请日：2010-06-10
申请人： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
发明人： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
IPC分类号： H04W4/00
CPC分类号： H04W72/005 , H04B17/318 , H04B17/345 , H04L5/0073 , H04W24/08 , H04W24/10 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/085
摘要： Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed: and a transmitter which transmits a result, of the measurement to the base station or the relay node.
摘要翻译：提供了能够高精度地测量与切换目的地的通信质量的无线电通信终端。无线电通信终端能够与基站或中继节点通信，并且包括：接收机，其接收包括与相邻小区的测量质量的测量有关的信息的控制信息; 从与所述测量有关的信息中提取作为仅执行来自连接到所述基站的所述中继节点的信号的信号的子帧的，应当执行所述测量的子帧的信息的提取器; 测量部，其基于所提取的关于应当进行测量的子帧的信息，在子帧的基础上进行测量;以及发送器，将测量结果发送给基站或中继节点。

52. 发明授权

US08705512B2 Radio communication base station apparatus and radio communication method 有权
公开(公告)号：US08705512B2
公开(公告)日：2014-04-22
申请号：US13360472
申请日：2012-01-27
申请人： Kenichi Miyoshi , Akihiko Nishio , Daichi Imamura , Hidetoshi Suzuki
发明人： Kenichi Miyoshi , Akihiko Nishio , Daichi Imamura , Hidetoshi Suzuki
IPC分类号： H04J3/06 , H04B7/212
摘要： A base station apparatus is provided, which includes a generator configured to generate a synchronization signal and a transmitter configured to transmit the generated synchronization signal. The generator is configured to generate a synchronization signal to be mapped on a subcarrier included in one of a plurality of frequency resource candidates that are separated by an interval, which is a common multiple of a determined frequency spacing and a subcarrier spacing between contiguous subcarriers, wherein the subcarrier spacing does not have a value that is a divisor of the determined frequency spacing.

53. 发明授权

US08699420B2 Radio communication terminal and radio communication method 有权
公开(公告)号：US08699420B2
公开(公告)日：2014-04-15
申请号：US13376694
申请日：2010-06-10
申请人： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
发明人： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
IPC分类号： H04W4/00
摘要： Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed: and a transmitter which transmits a result, of the measurement to the base station or the relay node.

54. 发明授权

US08493961B2 Transmission timing control method, base station apparatus and mobile station apparatus 有权
标题翻译：发送定时控制方法，基站装置和移动站装置
公开(公告)号：US08493961B2
公开(公告)日：2013-07-23
申请号：US11813582
申请日：2006-01-11
申请人： Atsushi Matsumoto , Sadaki Futagi , Kenichi Miyoshi , Daichi Imamura , Akihiko Nishio
发明人： Atsushi Matsumoto , Sadaki Futagi , Kenichi Miyoshi , Daichi Imamura , Akihiko Nishio
IPC分类号： H04J3/06
CPC分类号： H04L5/1469 , H04L5/023 , H04L27/2646 , H04L27/2655
摘要： A wireless communication method for improving the transmission efficiency in an upstream communication in OFDMA-TDD system or the like. An upstream transmission timing control part (108), which employs this method, controls, based on the OFDMA-TDD scheme, the transmission timings of a mobile station (#p) and a mobile station (#M) communicating with a base station (100). The upstream transmission timing control part (108) acquires information about the propagation delay times τp and τM of the mobile station (#p) and mobile station (#M). When the propagation delay time τp is shorter than the propagation delay time τM, the upstream transmission timing control part (108) decides the transmission timings of the mobile station (#p) and mobile station (#M) such that the timing at which the base station (100) starts receiving symbols from the mobile station (#p) in an upstream section is earlier, by αp times an OFDM symbol length (L) (where αp is a natural number), than the timing at which the base station (100) starts receiving symbols from the mobile station (#M) in the same section.
摘要翻译：一种用于在OFDMA-TDD系统中提高上行通信中的传输效率的无线通信方法等。使用该方法的上行发送定时控制部（108）基于OFDMA-TDD方式，控制与基站通信的移动台（#p）和移动台（#M）的发送定时 100）。上游发送定时控制部（108）获取关于移动台（#p）和移动台（#M）的传播延迟时间taup和tauM的信息。当传播延迟时间taup比传播延迟时间ττ短时，上游发送定时控制部（108）决定移动台（＃p）和移动台（＃M）的发送定时，基站（100）开始在上游部分中从移动站（#p）开始接收符号的时间早于基站的时间（alphap是自然数）（100）开始从同一部分的移动台（#M）接收符号。

55. 发明授权

US08311138B2 Communication apparatus and communication method 有权
标题翻译：通信设备和通信方法
公开(公告)号：US08311138B2
公开(公告)日：2012-11-13
申请号：US13305529
申请日：2011-11-28
申请人： Daichi Imamura , Akihiko Nishio , Kenichi Kuri , Kenichi Miyoshi
发明人： Daichi Imamura , Akihiko Nishio , Kenichi Kuri , Kenichi Miyoshi
IPC分类号： H04K1/10
CPC分类号： H04L25/0202 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L27/2611
摘要： A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part (101) determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part (102) decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part (106) multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part (105) in such a manner that realizes the placement decided by the pilot signal insertion control part (102).
摘要翻译：一种无线通信装置和无线通信方法，其中即使当允许的数据延迟量小时，也可以满足其允许的延迟。数据类型确定部分（101）确定是否允许传输数据或控制信息的延迟。导频信号插入控制部（102）根据导频插入间隔信息和容许延迟信息，判定导频信号与不允许延迟的数据相邻配置。复用部分（106）以编码和调制的传输数据与由导频信号产生部分（105）产生的导频信号以实现由导频信号插入控制部分（102）确定的布局的方式进行复用。

56. 发明申请

US20110228757A1 RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD 有权
公开(公告)号：US20110228757A1
公开(公告)日：2011-09-22
申请号：US12160483
申请日：2007-01-19
申请人： Kenichi Miyoshi , Akihiko Nishio , Daichi Imamura , Hidetoshi Suzuki
发明人： Kenichi Miyoshi , Akihiko Nishio , Daichi Imamura , Hidetoshi Suzuki
IPC分类号： H04J1/00
CPC分类号： H04W56/0015 , H04J11/0069 , H04L5/0007 , H04L5/0053 , H04L27/2626 , H04W8/005 , H04W48/08 , H04W48/16 , H04W72/00 , H04W88/08
摘要： Provided is a base station capable of performing cell search of all mobile stations having different communicable frequency band widths in a scalable band width communication system to which a multi-carrier communication method such as the OFDM method is applied. The base station includes: a modulation unit (102) for modulating SCH data after being encoded; a sub carrier setting unit (105) for setting one of the sub carriers to a sub carrier (SCH sub carrier) constituting the OFDM symbol for SCH data transmission; and an IFFT unit (106) for mapping the SCH data to the sub carrier set by the sub carrier setting unit (105) among the sub carriers and performing IFFT to generate an OFDM symbol. The sub carrier setting unit (105) sets one of the sub carriers which has a frequency of a common multiple between the sub carrier interval and the cell search interval as an SCH sub carrier.

57. 发明授权

US07961811B2 Radio transmitting apparatus and radio transmitting method 有权
标题翻译：无线发送装置和无线发送方法
公开(公告)号：US07961811B2
公开(公告)日：2011-06-14
申请号：US12064698
申请日：2006-08-25
申请人： Kenichi Miyoshi , Akihiko Nishio , Daichi Imamura
发明人： Kenichi Miyoshi , Akihiko Nishio , Daichi Imamura
IPC分类号： H04L27/00 , H04L7/06 , H04L7/00 , H04J11/00 , H04J3/06
CPC分类号： H04L27/2605 , H04L27/2607
摘要： A radio transmitting apparatus and method thereof wherein a guard interval (GI) having a variable length allows a radio receiving apparatus to precisely and easily obtain a symbol synchronization. A GI adding part adds a short GI or a long GI to the head of each of a plurality of data parts. In a case of adding the long GI, the GI adding part copies the symbols of a portion of a second data part, which immediately follows a first data part, including the rear of the second data part, and then adds the copied symbols to the head of the first data part, thereby providing a second GI. Moreover, the GI adding part copies the symbols to a portion of the first data part including the rear thereof, and then adds the copied symbols to the head of the second GI, thereby providing the first GI.
摘要翻译：一种无线发送装置及其方法，其中具有可变长度的保护间隔（GI）允许无线电接收装置精确且容易地获得符号同步。 GI添加部分向多个数据部分的每一个的头部添加短GI或长GI。在添加长GI的情况下，GI附加部分复制第二数据部分的一部分的符号，该第二数据部分紧随第一数据部分，包括第二数据部分的后部，然后将复制的符号添加到第一数据部分的头部，从而提供第二GI。此外，GI附加部分将符号复制到包括其后面的第一数据部分的一部分，然后将复制的符号添加到第二GI的头部，从而提供第一GI。

58. 发明授权

US07944871B2 Communication relay apparatus and communication relay method 有权
标题翻译：通信中继设备和通信中继方式
公开(公告)号：US07944871B2
公开(公告)日：2011-05-17
申请号：US11912807
申请日：2006-04-26
申请人： Daichi Imamura , Ayako Horiuchi , Kenichi Miyoshi
发明人： Daichi Imamura , Ayako Horiuchi , Kenichi Miyoshi
IPC分类号： H04B7/14
CPC分类号： H04B7/15542 , H04W16/26 , H04W28/18 , Y02D70/446
摘要： A communication relay apparatus wherein the error rate characteristic of a relay destination is improved to raise the throughput, while reducing the given interference power to prevent the reduction of the throughput of the whole communication system. In the apparatus, a signal addressed to a base station is received (ST1010), and a decoding process and other processes are performed (ST1020). A bit error determination is performed (ST1030), and if there is no bit error, a reproduction/relay process (ST1050) is performed. If there is any bit error, a threshold-based determination of reception quality is performed for each of subcarriers (ST1120-1130). If the reception quality is greater than a threshold value, the corresponding subcarrier is outputted (ST1140); otherwise, the corresponding subcarrier is not relayed (ST1150). A signal, which has been subjected to either process, is transmitted (ST1060).
摘要翻译：一种通信中继装置，其中改善了中继目的地的错误率特性以提高吞吐量，同时降低给定的干扰功率以防止整个通信系统的吞吐量的降低。在该装置中，接收寻址到基站的信号（ST1010），并执行解码处理和其他处理（ST1020）。执行位错误判定（ST1030），如果不存在位错误，则进行再现/中继处理（ST1050）。如果存在任何位错误，则对每个子载波执行基于阈值的接收质量的确定（ST1120-1130）。如果接收质量大于阈值，则输出相应的副载波（ST1140）; 否则，相应的副载波不被中继（ST1150）。已经进行了任一处理的信号被传送（ST1060）。

59. 发明申请

US20110096852A1 RADIO RECEPTION DEVICE, RADIO TRANSMISSION DEVICE, AND FEEDBACK METHOD 有权
标题翻译：无线电接收装置，无线电传输装置和反馈方法
公开(公告)号：US20110096852A1
公开(公告)日：2011-04-28
申请号：US12988251
申请日：2009-04-17
申请人： Ryohei Kimura , Daichi Imamura , Kenichi Miyoshi
发明人： Ryohei Kimura , Daichi Imamura , Kenichi Miyoshi
IPC分类号： H04L27/00
CPC分类号： H04L1/0029 , H04B7/0621 , H04B7/0632 , H04B7/0634 , H04L1/0026 , H04L25/0224
摘要： Provided are a radio reception device, a radio transmission device, and a feedback method which can uniformly guarantee the feedback accuracy of an average CQI even when the transmission band width is different. A channel estimation unit (103) uses a pilot signal to obtain SINR for each RB. A feedback information generation unit (107) converts SINR of each RB into a corresponding CQI. Moreover, as the transmission band width increases, the number X of the quantization bits is decreased when quantizing the average CQI, thereby generating feedback information. A radio transmission unit (108) transmits feedback information from an antenna (101).
摘要翻译：提供即使当传输带宽不同时也能均匀地保证平均CQI的反馈精度的无线电接收装置，无线电发送装置和反馈方法。信道估计单元（103）使用导频信号来获得每个RB的SINR。反馈信息生成部（107）将各RB的SINR变换为对应的CQI。此外，随着传输带宽的增加，量化位数的数量X在量化平均CQI时减少，从而产生反馈信息。无线发送单元（108）从天线（101）发送反馈信息。

60. 发明申请

US20110002321A1 RADIO TRANSMISSION DEVICE, AND RADIO TRANSMISSION METHOD 有权
标题翻译：无线电传输设备和无线电传输方法
公开(公告)号：US20110002321A1
公开(公告)日：2011-01-06
申请号：US12882032
申请日：2010-09-14
申请人： Takashi Iwai , Daichi Imamura , Kenichi Miyoshi , Sadaki Futagi , Atsushi Matsumoto , Tomofumi Takata
发明人： Takashi Iwai , Daichi Imamura , Kenichi Miyoshi , Sadaki Futagi , Atsushi Matsumoto , Tomofumi Takata
IPC分类号： H04B7/216
CPC分类号： H04J13/0055 , H04J13/0062 , H04J13/0066
摘要： Provided are a radio transmission device and a radio transmission method, which prevent the deterioration of a preamble detecting performance while reducing the collision probability of a RACH. In this radio transmission device, a Signature table storage unit (103) divides the magnitudes of transmission loss levels into individual levels corresponding to the distances from a base station, to cause CAZAC series and circulation shift quantities to correspond to each other at the individual levels, and is provided with a table containing a plurality of Signatures created from the CAZAC series and the circulation shift quantities caused to correspond to each other. A Signature selecting unit (104) selects one of the corresponding Signatures at random from the Signature table storage unit (103), on the basis of the magnitude of the transmission loss level outputted from a transmission loss level deciding unit (102). A RACH signal generating unit (105) generates the RACH signal with the Signature selected.
摘要翻译：提供一种无线传输装置和无线传输方法，其防止前导码检测性能的劣化，同时降低RACH的冲突概率。在该无线发送装置中，签名表存储部（103）将传输损耗级别的大小划分为与基站的距离对应的各个级别，使得CAZAC序列和循环移位量在各个级别彼此对应并且设置有包含从CAZAC系列创建的多个签名和导致彼此对应的循环移位量的表。签名选择单元（104）根据从传输损失等级决定单元（102）输出的传输损耗电平的大小，从签名表存储单元（103）中随机选择一个对应的签名。 RACH信号生成单元（105）在选择了签名的情况下生成RACH信号。

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