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.

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。

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。

公开(公告)号：US08238468B2

公开(公告)日：2012-08-07

申请号：US11658503

申请日：2005-07-27

申请人： Akihiko Nishio ,  Kenichi Miyoshi

发明人： Akihiko Nishio ,  Kenichi Miyoshi

IPC分类号： H04L27/00

CPC分类号： H04L25/03159 ,  H04L1/0013 ,  H04L1/0067 ,  H04L5/003 ,  H04L5/0037 ,  H04L5/0044 ,  H04L27/0008 ,  H04L27/2636 ,  H04W52/16 ,  H04W52/346

摘要： There is disclosed a radio transmission device capable of improving the throughput. The radio transmission device (100) transmits a first signal and a second signal which are different from each other. In the radio transmission device (100), an FFT unit (103) subjects first data to an FFT process. A sub-carrier allocation unit (106) maps the first data which has been subjected to the FFT process and the second data into different frequencies. An IFFT unit (107) subjects the mapped signal to the IFFT transform. A transmission radio processing unit (109) transmits the signal which has been subjected to the IFFT processing, with a single carrier.

摘要翻译： 公开了能够提高吞吐量的无线传输装置。 无线发送装置（100）发送彼此不同的第一信号和第二信号。 在无线发送装置（100）中，FFT单元（103）对第一数据进行FFT处理。 子载波分配单元（106）将经过FFT处理的第一数据和第二数据映射到不同的频率。 IFFT单元（107）对映射的信号进行IFFT变换。 发送无线电处理单元（109）用单个载波发送已进行了IFFT处理的信号。

公开(公告)号：US20120120901A1

公开(公告)日：2012-05-17

申请号：US13357430

申请日：2012-01-24

申请人： Kenichi Kuri ,  Akihiko Nishio ,  Masaru Fukuoka ,  Kenichi Miyoshi

发明人： Kenichi Kuri ,  Akihiko Nishio ,  Masaru Fukuoka ,  Kenichi Miyoshi

IPC分类号： H04W72/04

CPC分类号： H04W72/0406 ,  H04B7/0619 ,  H04B7/12 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0071 ,  H04L5/0094 ,  H04L25/0228 ,  H04W28/06 ,  H04W48/08 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/08

摘要： Provided is a base station capable of suppressing increase of overhead of allocation result report in frequency scheduling in multi-carrier communication and obtaining a sufficient frequency diversity effect. In the base station, encoding units (101-1 to 101-n) encode data (#1 to #n) to mobile stations (#1 to #n), modulation units (102-1 to 102-n) modulate the encoded data so as to generate a data symbol, a scheduler (103) performs frequency scheduling according to a CQI from each mobile station so as to uniformly allocate data to the respective mobile stations for a part of RB extracted from a plurality of RB, and an SCCH generation unit (105) generates control information (SCCH information) to report the allocation result in the scheduler (103) to the respective mobile stations.

摘要翻译： 提供一种能够抑制多载波通信中的频率调度中的分配结果报告的开销增加并获得足够的频率分集效应的基站。 在基站中，编码单元（101-1〜101-n）对移动台（＃1〜＃n）的数据（＃1〜＃n）进行编码，调制部（102-1〜102-n） 数据，以便生成数据符号，调度器（103）根据来自每个移动台的CQI执行频率调度，以便将从多个RB提取的一部分RB的各个移动站均匀地分配数据，以及 SCCH生成单元（105）生成控制信息（SCCH信息），将调度器（103）中的分配结果报告给各移动站。

公开(公告)号：US08111762B2

公开(公告)日：2012-02-07

申请号：US11658257

申请日：2005-07-14

申请人： Kenichi Miyoshi ,  Akihiko Nishio

发明人： Kenichi Miyoshi ,  Akihiko Nishio

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L27/261 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03159 ,  H04L2025/03414

摘要： A radio transmission device capable of improving channel estimation precision for each frequency. In this device, an FFT unit (103) subjects a data signal to a Fourier transformation. A signal substitution unit (108) substitutes the frequency component of a portion of a plurality of frequency components composing the Fourier-transformed data signal, for a pilot signal. An IFFT unit (109) subjects the data signal, the frequency component of which has been partially substituted for the pilot signal, to an inverse Fourier transformation. A transmission RF unit (111) transmits the inversely Fourier-transformed data signal on a single carrier.

摘要翻译： 一种能够提高每个频率的信道估计精度的无线传输装置。 在该装置中，FFT单元（103）对数据信号进行傅里叶变换。 信号替换单元（108）将构成傅立叶变换数据信号的多个频率分量的一部分的频率分量代入导频信号。 IFFT单元（109）将频率分量部分地替代导频信号的数据信号进行逆傅里叶变换。 发送RF单元（111）在单载波上发送反傅立叶变换后的数据信号。

公开(公告)号：US08077598B2

公开(公告)日：2011-12-13

申请号：US12498106

申请日：2009-07-06

申请人： Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

发明人： Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

IPC分类号： H04J11/00

CPC分类号： H04L5/0016 ,  H04B1/692 ,  H04L5/0028 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L27/0008 ,  H04L27/3405

摘要： A radio transmission apparatus performs communications with high transmission efficiency. In this apparatus, a modulator modulates data and outputs to a first spreader. A second modulator modulates data under a modulation scheme having a higher M-ary number than the first modulator and outputs the modulated data to a second spreader. The first spreader spreads the data and outputs the spread data to a frequency domain mapping section. The second spreader spreads the data and outputs the spread data to a time domain mapping section. A frequency domain mapping section maps chips with spread data on subcarriers in the frequency domain and outputs the data with chips mapped on subcarriers to an IFFT section. The time domain mapping section maps chips with spread data on subcarriers in the time domain and outputs the data with chips mapped on subcarriers to the IFFT section.

摘要翻译： 无线发送装置以高传输效率进行通信。 在该装置中，调制器调制数据并将其输出到第一扩展器。 第二调制器在具有比第一调制器更高的M值的调制方案下调制数据，并将调制的数据输出到第二扩展器。 第一扩展器扩展数据并将扩展数据输出到频域映射部分。 第二扩展器扩展数据并将扩展数据输出到时域映射部分。 频域映射部将具有频域上的子载波的扩展数据的芯片进行映射，并将具有映射在子载波上的码片的数据输出到IFFT部。 时域映射部将具有在时域中的子载波上的扩展数据的芯片映射，并将与副载波对应的芯片的数据输出到IFFT部。

公开(公告)号：US20110280284A1

公开(公告)日：2011-11-17

申请号：US13141155

申请日：2009-12-22

申请人： Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Miyoshi ,  Megumi Ichikawa

发明人： Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Miyoshi ,  Megumi Ichikawa

IPC分类号： H04B1/707

CPC分类号： H04J13/22 ,  H04J11/0053 ,  H04J13/0055

摘要： Disclosed is a wireless communication terminal device that is capable of preventing inter-coding interference upon each of a plurality of base stations, even when the timing changes for a transmission of a control signal that is CoMP received by the plurality of base stations. Upon the device, a diffusion unit (214) employs any of a plurality of ZAC series that are reciprocally splittable with a reciprocally variable cyclical shift quantity to diffuse a response signal, according to an instruction from a control unit (209), and the control unit (209) controls, according to a difference between a timing of a transmission of a response signal at a first time and a timing of a transmission of a response signal at a second time that is later than the first time, the cyclical shift quantity of the ZAC series that is employed by the diffusion unit (214) at the second time.

摘要翻译： 公开了一种无线通信终端装置，其能够防止多个基站中的每一个的帧间编码干扰，即使当由多个基站接收到的作为CoMP的控制信号的发送的定时改变时。 在该装置上，扩散单元（214）根据来自控制单元（209）的指令，使用可往复分动的多个ZAC系列中的任何一个可往复地可分开的循环移位量来扩展响应信号，并且控制 单元（209）根据第一时间的响应信号的发送定时与第一次第二次发送响应信号的定时之间的差异，控制周期性移位量 的第二次由扩散单元（214）采用的ZAC系列。

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.

公开(公告)号：US20110165835A1

公开(公告)日：2011-07-07

申请号：US13046376

申请日：2011-03-11

申请人： Ayako HORIUCHI ,  Kenichi Kuri ,  Kenichi Miyoshi ,  Akihiko Nishio ,  Tomohiro Imai

发明人： Ayako HORIUCHI ,  Kenichi Kuri ,  Kenichi Miyoshi ,  Akihiko Nishio ,  Tomohiro Imai

IPC分类号： H04B7/14

CPC分类号： H04L1/18 ,  H04B7/15557 ,  H04L2001/0097

摘要： Provided is a radio communication method or the like for making compatible an improvement in error rate characteristics and a reduction in delay. The radio communication method is used in a mobile communication system including a mobile station, a relay station and a base station. A transmitted signal containing a signal addressed to the base station is transmitted at first from the mobile station to the relay station. A non-reproduced relay signal obtained in the relay station from the transmitted signal is transmitted from the relay station to the base station. On the basis of the reception result of the non-reproduced relay signal at the base station, a re-transmission request of the transmitted signal is transmitted from the base station. A reproduced relay signal, as obtained from the transmitted signal in the relay station, is transmitted from the relay station to the base station in accordance with the re-transmission request transmitted from the base station.

摘要翻译： 提供了一种用于使兼容的错误率特性的改善和延迟的减少的无线电通信方法等。 无线电通信方法用于包括移动台，中继站和基站的移动通信系统。 首先从移动台向中继站发送包含寻址到基站的信号的发送信号。 在中继站从所发送的信号获得的非再生中继信号从中继站发送到基站。 基于基站的未再生中继信号的接收结果，从基站发送发送信号的重发请求。 根据从基站发送的重传请求，从中继站向基站发送从中继站中的发送信号获得的再生中继信号。