公开(公告)号：US20090124210A1

公开(公告)日：2009-05-14

申请号：US12091901

申请日：2006-11-02

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

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

IPC: H04B7/02 ,  H04B7/00

CPC classification number: H04B7/0671 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0697 ,  H04L25/0204 ,  H04L25/0222

Abstract: A radio transmitting apparatus, a radio receiving apparatus, a wireless communication method and a wireless communication system wherein even when a channel correlation is large, the channel capacity and the feedback amount can be improved. In ST401, a receiving apparatus (200) determines that the channel correlation value exceeds a predetermined threshold value. In ST402, a transmitting apparatus (100) is instructed to perform 42 MIMO transmission. In ST403, the transmitting apparatus (100) determines a pair of antennas exhibiting the highest channel correlation. In ST406, the receiving apparatus (200) uses, based on the pair information, a channel matrix, which comprises channel estimation values, to calculate a delay shift amount. In ST407, the delay shift amount is fed back to the transmitting apparatus (100). In ST408, the transmitting apparatus (100) uses the pair information and delay shift amount to combine SDM and a cyclic sample delay diversity, thereby transmitting data.

Abstract translation: 一种无线发送装置，无线接收装置，无线通信方法以及无线通信系统，其中即使信道相关性大，也可以提高信道容量和反馈量。 在ST401中，接收装置（200）确定信道相关值超过预定阈值。 在ST402中，指示发送装置（100）进行42 MIMO发送。 在ST403中，发送装置（100）确定呈现最高信道相关性的一对天线。 在ST406中，接收装置（200）基于配对信息，使用包含信道估计值的信道矩阵来计算延迟偏移量。 在ST407中，将延迟偏移量反馈给发送装置（100）。 在ST408中，发送装置（100）使用配对信息和延迟移位量来组合SDM和循环采样延迟分集，从而发送数据。

公开(公告)号：US20090061767A1

公开(公告)日：2009-03-05

申请号：US11909797

申请日：2006-03-28

Applicant: Ayako Horiuchi ,  Kenichi Miyoshi ,  Akihiko Nishio ,  Hiroaki Morino

Inventor： Ayako Horiuchi ,  Kenichi Miyoshi ,  Akihiko Nishio ,  Hiroaki Morino

IPC: H04B7/14

CPC classification number: H04B7/2606 ,  H04B7/155 ,  H04W40/12

Abstract: A wireless communication method capable of selecting an optimum relay station, while preventing degradation of the throughput. According to this wireless communication method, in a frame 2, a relay station (1) has a line quality being equal to or greater than Th and hence decides that the delay amount be Δt1, while a relay station (2) has a line quality being less than Th and hence decides that the delay amount be Δt2. The relay station (1) uses Δt1 of the frame 2 to transmit a relayed signal to a base station. On the other hand, recognizing, by a lapse of Δt2, that the relay station (1) used Δt1 to transmit the relayed signal, the relay station (2) stops the transmission of the relayed signal. Accordingly, the base station receives only the relayed signal from the relay station (1) having the better line quality. Thus, when the line quality of the relay station (1) is better than that of the relay station (2), the relayed signal from the relay station (1) can be preferentially transmitted.

Abstract translation: 一种能够选择最佳中继站，同时防止吞吐量降低的无线通信方法。 根据该无线通信方法，在帧2中，中继站（1）具有等于或大于Th的线路质量，因此在中继站（2）具有线路质量的情况下，决定延迟量为Deltat1 小于Th，因此决定延迟量为Deltat2。 中继站（1）使用帧2的Deltat1将中继信号发送到基站。 另一方面，通过Deltat2的识别，中继站（1）使用Deltat1发送中继信号，中继站（2）停止中继信号的发送。 因此，基站仅接收具有更好的线路质量的中继站（1）的中继信号。 因此，当中继站（1）的线路质量优于中继站（2）的线路质量时，可以优先地发送来自中继站（1）的中继信号。

公开(公告)号：US20090031183A1

公开(公告)日：2009-01-29

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: H04L1/18 ,  G06F11/14

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：US20080305823A1

公开(公告)日：2008-12-11

申请号：US11658571

申请日：2005-07-26

Applicant: Atsushi Matsumoto ,  Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

Inventor： Atsushi Matsumoto ,  Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC: H04B7/26

CPC classification number: H04W88/08 ,  H04W72/00

Abstract: A base station device enabling prevention of an increase of the power consumption of a terminal and reduction of interference caused in neighboring cells. The base station device (100) has a specific reception dynamic range. A reception level information acquiring section (154) acquires reception level information on received signals from users (#1 to #N). On the basis of the reception level information, a selection section (156) selects a user acceptable in the reception dynamic range from the users (#1 to #N). A transmission permission notifying section (120) notifies the selected user of the permission of the uplink data transmission.

Abstract translation: 一种基站装置，其能够防止终端的功耗的增加和减少在相邻小区中引起的干扰。 基站装置（100）具有特定的接收动态范围。 接收电平信息获取部（154）从用户（＃1〜#N）获取关于接收信号的接收电平信息。 基于接收电平信息，选择部（156）从用户（＃1〜#N）中选择接收动态范围内可接受的用户。 发送许可通知部（120）向所选择的用户通知上行数据发送的许可。

公开(公告)号：US20080304658A1

公开(公告)日：2008-12-11

申请号：US11658256

申请日：2005-07-07

Applicant: Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

Inventor： Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

IPC: H04L9/06

CPC classification number: H04L63/06 ,  H04B7/043 ,  H04L9/0875 ,  H04L2209/34 ,  H04L2209/80 ,  H04L2463/061

Abstract: An inventive wireless communication apparatus that, in a wireless communication system to which a secret key scheme is applied, can generate a secret key, which is different from a secret key generated by a third party, even if a wireless signal is intercepted by the third part having an approximate propagation path environment to a receiving wireless communication apparatus. In the inventive apparatus, an eigenvalue selecting part (317) of a secret key generating part (207) selects a maximum one of MIMO channel eigenvalues received from an eigenvalue detecting part (206) and inputs the selected maximum eigenvalue to a quantizing part (327). The quantizing part (327) quantizes the magnitude of the maximum eigenvalue received from the eigenvalue selecting part (317) to produce and input a quantized data to a key generating part (337). The key generating part (337) uses a predetermined scheme to generate a secret key from the quantized data received from the quantizing part (327), and inputs the generated secret key to a control part or the like not shown.

Abstract translation: 一种创造性的无线通信装置，在应用了秘密密钥方案的无线通信系统中，即使无线信号被第三方拦截，也可以生成与第三方生成的秘密密钥不同的秘密密钥 部分具有到接收无线通信装置的近似传播路径环境。 在本发明的装置中，秘密密钥生成部（207）的特征值选择部（317）选择从特征值检测部（206）接收到的最大一个MIMO信道特征值，并将所选择的最大特征值输入到量化部（327 ）。 量化部分（327）量化从特征值选择部分（317）接收的最大特征值的幅度，以产生量化数据并将其输入到密钥产生部分（337）。 密钥产生部分（337）使用预定方案从量化部分（327）接收到的量化数据生成秘密密钥，并将生成的秘密密钥输入到未示出的控制部分等。

公开(公告)号：US20080304583A1

公开(公告)日：2008-12-11

申请号：US11658257

申请日：2005-07-14

Applicant: Kenichi Miyoshi ,  Akihiko Nishio

Inventor： Kenichi Miyoshi ,  Akihiko Nishio

IPC: H01L27/00 ,  H04J11/00

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：US20080261545A1

公开(公告)日：2008-10-23

申请号：US12132992

申请日：2008-06-04

Applicant: Kenichi Miyoshi ,  Takahisa Aoyama ,  Toyoki Ue ,  Osamu Kato ,  Katsuhiko Hiramatsu ,  Atsushi Samasu

Inventor： Kenichi Miyoshi ,  Takahisa Aoyama ,  Toyoki Ue ,  Osamu Kato ,  Katsuhiko Hiramatsu ,  Atsushi Samasu

IPC: H04B1/04

CPC classification number: H04W52/265 ,  H04W52/24 ,  H04W52/241 ,  H04W52/246 ,  H04W52/262 ,  H04W52/267 ,  H04W52/367

Abstract: An allocation section 101 in a base station apparatus of the present invention sets the transmission rate of a transmit signal for a communication terminal apparatus based on a DRC signal transmitted from that communication terminal apparatus. A power margin information detector 117 detects power margin information from a demodulated signal generated by a demodulator 115, and, using that power margin information, a power setting section 118 makes a setting so as to give the minimum transmission power value at which received signal characteristics in each communication terminal apparatus meet the desired quality. Using the set transmission power value, the base station apparatus transmits a transmit signal of the set transmission rate to a communication terminal apparatus. By this means it is possible to suppress interference to a communication terminal apparatus that performs adaptive modulation communication with another base station apparatus and a communication terminal apparatus that performs adaptive modulation communication with the local base station apparatus at the same time.

Abstract translation: 本发明的基站装置中的分配部101基于从该通信终端装置发送的DRC信号来设定通信终端装置的发送信号的发送速度。 功率余量信息检测器117从解调器115产生的解调信号中检测功率余量信息，并且使用该功率余量信息，功率设定部118进行设定，以便给出接收信号特性 在每个通信终端设备中满足期望的质量。 使用设定的发送功率值，基站装置向通信终端装置发送所设定的发送速率的发送信号。 通过这种方式，可以抑制对与本地基站装置同时执行自适应调制通信的另一基站装置和通信终端装置进行自适应调制通信的通信终端装置的干扰。

公开(公告)号：US07400689B2

公开(公告)日：2008-07-15

申请号：US11232005

申请日：2005-09-22

Applicant: Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

Inventor： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

IPC: H04L27/00

CPC classification number: H04L1/1845 ,  H04B1/707 ,  H04L1/0003 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1893 ,  H04L27/3488 ,  H04L2001/0098

Abstract: P/S conversion section 302 performs parallel/serial conversion of data sequences #1 through #4 input in parallel, in accordance with control by assignment control section 303, so that data to a higher-priority communication terminal is assigned to an upper bit in one symbol; M-ary modulation section 304 performs M-ary modulation on the data that has been subject to parallel/serial conversion; S/P conversion section 305 converts a symbol that has been subject to M-ary modulation to parallel form; multipliers 306-1 through 306-4 execute spreading processing on the symbols output in parallel; multiplexing section 309 multiplexes the symbol that has been subject to spreading processing with an assignment notification signal that has been subject to spreading processing; and radio transmitting section 310 transmits the multiplexed signal.

Abstract translation: P / S转换部分302根据分配控制部分303的控制对并行输入的数据序列＃1至＃4进行并行/串行转换，使得到较高优先级的通信终端的数据被分配给 一个符号 M元调制部304对已经进行并行/串行转换的数据执行M进制调制; S / P转换部分305将已经被M进制调制的符号转换成并行形式; 乘法器306-1至306-4对并行输出的符号执行扩展处理; 多路复用部分309将已经进行扩展处理的符号与已经进行扩展处理的分配通知信号进行复用; 无线发送部310发送多路复用信号。

公开(公告)号：US07400687B2

公开(公告)日：2008-07-15

申请号：US10481783

申请日：2003-04-10

Applicant: Atsushi Matsumoto ,  Kenichi Miyoshi

Inventor： Atsushi Matsumoto ,  Kenichi Miyoshi

IPC: H04L27/28

CPC classification number: H04L5/026 ,  H03M13/27 ,  H04L1/0003 ,  H04L1/0043 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/1845 ,  H04L1/1874 ,  H04L1/1893 ,  H04L27/2626 ,  H04L27/2647

Abstract: A sequence converting section 104 interchanges high-order bits where an error does not easily occur and low-order bits where an error easily occurs that are used by an M-ary modulating section 105 for each retransmission. The M-ary modulating section 105 performs M-ary modulation using the high-order bits and low-order bits interchanged for each retransmission. An M-ary modulated symbol is interleaved with an interleave pattern being different for each retransmission, and multicarrier transmitted via an OFDM transmitting section 109.

Abstract translation: 序列转换部分104替换错误不容易发生的高阶比特和容易发生误差的低阶比特，由M进制调制部分105用于每次重传。 M元调制部分105使用每次重传互换的高阶比特和低阶比特来执行M进制调制。 M进制调制符号与每个重传不同的交织模式进行交织，经由OFDM发送部分109发送多载波。

公开(公告)号：US20080107158A1

公开(公告)日：2008-05-08

申请号：US11718655

申请日：2005-11-07

Applicant: Isamu Yoshii ,  Masaru Fukuoka ,  Christian Weingerter ,  Akihiko Nishio ,  Kenichi Miyoshi

Inventor： Isamu Yoshii ,  Masaru Fukuoka ,  Christian Weingerter ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC: H04B1/707 ,  H04J11/00 ,  H04L27/00 ,  H04J13/00

CPC classification number: H04B1/76 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0091

Abstract: A radio transmitter and a pilot signal inserting method are provided for improving throughput. In the radio transmitter, an MCS deciding part (106) selects one of a plurality of modulating systems. An information generating part (108) decides an inserting position of a pilot signal corresponding to the selected modulating system. A modulating part (116) modulates a data signal by the selected modulating system. A signal arranging part (118) inserts the pilot signal into the modulated data signal and changes the inserting position of the pilot signal corresponding to the selected modulating system. A transmission RF part (124) transmits the data signal wherein the pilot signal is inserted.

Abstract translation: 提供无线电发射机和导频信号插入方法以提高吞吐量。 在无线电发射机中，MCS决定部分（106）选择多个调制系统中的一个。 信息生成部（108）决定与所选择的调制系统对应的导频信号的插入位置。 调制部分（116）通过所选择的调制系统调制数据信号。 信号排列部（118）将导频信号插入调制数据信号，并改变对应于所选择的调制系统的导频信号的插入位置。 发送RF部分（124）发送其中插入导频信号的数据信号。