公开(公告)号：US08111762B2

公开(公告)日：2012-02-07

申请号：US11658257

申请日：2005-07-14

Applicant: Kenichi Miyoshi ,  Akihiko Nishio

Inventor： Kenichi Miyoshi ,  Akihiko Nishio

IPC: H04K1/10 ,  H04L27/28

CPC classification number: H04L27/261 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03159 ,  H04L2025/03414

Abstract: 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.

Abstract translation: 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

Applicant: Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

Inventor： Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

IPC: H04J11/00

CPC classification number: H04L5/0016 ,  H04B1/692 ,  H04L5/0028 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L27/0008 ,  H04L27/3405

Abstract: 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.

Abstract translation: 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：US08065586B2

公开(公告)日：2011-11-22

申请号：US11914153

申请日：2006-05-18

Applicant: Kenichi Miyoshi ,  Ayako Horiuchi

Inventor： Kenichi Miyoshi ,  Ayako Horiuchi

IPC: H03M13/00

CPC classification number: H04L25/20 ,  H04B7/022 ,  H04B7/026 ,  H04B7/15592 ,  H04L1/0041 ,  H04L27/2601 ,  H04L2001/0096 ,  H04L2001/0097

Abstract: A radio communication apparatus of the present invention aims at improving an error rate characteristic in the end receiver. A repeater (radio relay device) RS2 receives a signal transmitted from a repeater RS1 at a point of time of signal transmission from the repeater RS1, and detects whether or not an error exists in the signal at a point of time of transmission. Also, when the repeater RS2 detects the error from a systematic bit S of the transmitted signal from the repeater RS1, such repeater RS2 generates error position information EI, replace a part of a parity bit P with the error position information EI, and transmits a resultant signal. The error detection result is notified through the control channel. The mobile station (mobile terminal) MS makes an error correction based on the error position information EI, and demodulates the signal by executing an error correction decoding process.

Abstract translation: 本发明的无线通信装置旨在提高终端接收机的误码率特性。 中继器（无线电中继设备）RS2从中继器RS1接收从中继器RS1发送的信号发送时的信号，并且检测在发送时刻的信号中是否存在错误。 此外，当中继器RS2从来自中继器RS1的发送信号的系统位S检测到错误时，这样的中继器RS2产生错误位置信息EI，用错误位置信息EI替换奇偶校验位P的一部分，并发送 结果信号。 通过控制通道通知错误检测结果。 移动站（移动终端）MS基于错误位置信息EI进行纠错，并且通过执行纠错解码处理对信号进行解调。

公开(公告)号：US08065579B2

公开(公告)日：2011-11-22

申请号：US11816885

申请日：2006-02-27

Applicant: Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

Inventor： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

IPC: G08C25/02 ,  H04L1/18

CPC classification number: H04L1/1893 ,  H04L1/0001 ,  H04L1/0013 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/1819 ,  H04L1/1825 ,  H04L1/1845 ,  H04L25/0222

Abstract: A retransmission control scheme and a wireless communication apparatus wherein the efficiency of retransmission control is enhanced to further improve the system throughput. In this wireless communication apparatus (100), an error occurrence factor addressing part (140) receives information related to the error occurrence factor of a transmitted packet or information related to the schemes of forming or transmitting a retransmittal packet corresponding to that error occurrence factor, and switches, based on the received information, the schemes of forming or transmitting the retransmittal packet. In this way, the schemes of forming or transmitting the retransmittal packet can be switched in accordance with the error occurrence factor of the transmitted packet. At the end of receiving the retransmittal packet, therefore, the performing of a decoding processor the like in accordance with that scheme of forming or transmitting can enhance the efficiency of the retransmission control. As a result, the system throughput can be improved.

Abstract translation: 一种重传控制方案和一种无线通信装置，其中提高了重传控制的效率以进一步提高系统吞吐量。 在该无线通信装置（100）中，错误发生因子寻址部（140）接收与所发送的分组的错误发生因子相关的信息或与形成或发送对应于该错误发生因子的重传分组的方案有关的信息， 并且基于所接收的信息来切换形成或发送重传分组的方案。 以这种方式，可以根据发送的分组的错误发生因素来切换形成或发送重传分组的方案。 因此，在接收到重传分组的结束时，根据该形成或发送方案执行解码处理器等可以提高重传控制的效率。 结果，可以提高系统吞吐量。

公开(公告)号：US20110280284A1

公开(公告)日：2011-11-17

申请号：US13141155

申请日：2009-12-22

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

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

IPC: H04B1/707

CPC classification number: H04J13/22 ,  H04J11/0053 ,  H04J13/0055

Abstract: 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.

Abstract translation: 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

Applicant: Kenichi Miyoshi ,  Akihiko Nishio ,  Daichi Imamura ,  Hidetoshi Suzuki

Inventor： Kenichi Miyoshi ,  Akihiko Nishio ,  Daichi Imamura ,  Hidetoshi Suzuki

IPC: H04J1/00

CPC classification number: H04W56/0015 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2626 ,  H04W8/005 ,  H04W48/08 ,  H04W48/16 ,  H04W72/00 ,  H04W88/08

Abstract: 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：US20110195669A1

公开(公告)日：2011-08-11

申请号：US13090821

申请日：2011-04-20

Applicant: Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Takahisa Aoyama ,  Atsushi Sumasu ,  Osamu Kato

Inventor： Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Takahisa Aoyama ,  Atsushi Sumasu ,  Osamu Kato

IPC: H04W24/08

CPC classification number: H04W28/22 ,  H04W24/00 ,  H04W52/0229 ,  H04W52/0245 ,  H04W52/0258 ,  H04W52/24 ,  H04W52/26 ,  H04W72/12 ,  H04W72/1284 ,  Y02D70/00

Abstract: A mobile communication system which is capable of, when carrying out mobile communication using a shared channel, increasing in efficiency of transmission timing of the data transmission rate request value to prevent wasteful power consumption and hence reduce power consumption. A mobile station apparatus of the mobile communication system measures CIR of the received signal from a base station apparatus at a CIR measuring section, and decides the data transmission rate request value corresponding to the measured CIR value at a rate request value deciding section. Also, it detects an error of the received signal at a CRC section, and, when no error is found, calculates a difference between the average data transmission rate from a base station apparatus and the data transmission request value at a rate request value transmission controlling section. Then, it transmits the data transmission rate request value to the base station apparatus only when the obtained difference is larger than a threshold value.

Abstract translation: 能够在使用共享信道进行移动通信时能够提高数据传输速率请求值的发送定时的效率的移动通信系统，以防止浪费的功率消耗并因此降低功耗。 移动通信系统的移动站装置在CIR测量部分测量来自基站装置的接收信号的CIR，并且在速率请求值确定部分确定与测量的CIR值对应的数据传输速率请求值。 此外，它检测在CRC部分的接收信号的错误，并且当没有发现错误时，以速率请求值传输控制计算来自基站装置的平均数据传输速率与数据传输请求值之间的差异 部分。 然后，只有当获得的差值大于阈值时，才向基站装置发送数据传输速率请求值。

公开(公告)号：US20110165835A1

公开(公告)日：2011-07-07

申请号：US13046376

申请日：2011-03-11

Applicant: Ayako HORIUCHI ,  Kenichi Kuri ,  Kenichi Miyoshi ,  Akihiko Nishio ,  Tomohiro Imai

Inventor： Ayako HORIUCHI ,  Kenichi Kuri ,  Kenichi Miyoshi ,  Akihiko Nishio ,  Tomohiro Imai

IPC: H04B7/14

CPC classification number: H04L1/18 ,  H04B7/15557 ,  H04L2001/0097

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07961811B2

公开(公告)日：2011-06-14

申请号：US12064698

申请日：2006-08-25

Applicant: Kenichi Miyoshi ,  Akihiko Nishio ,  Daichi Imamura

Inventor： Kenichi Miyoshi ,  Akihiko Nishio ,  Daichi Imamura

IPC: H04L27/00 ,  H04L7/06 ,  H04L7/00 ,  H04J11/00 ,  H04J3/06

CPC classification number: H04L27/2605 ,  H04L27/2607

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07944871B2

公开(公告)日：2011-05-17

申请号：US11912807

申请日：2006-04-26

Applicant: Daichi Imamura ,  Ayako Horiuchi ,  Kenichi Miyoshi

Inventor： Daichi Imamura ,  Ayako Horiuchi ,  Kenichi Miyoshi

IPC: H04B7/14

CPC classification number: H04B7/15542 ,  H04W16/26 ,  H04W28/18 ,  Y02D70/446

Abstract: 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).

Abstract translation: 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）。