公开(公告)号：US07555035B2

公开(公告)日：2009-06-30

申请号：US11213883

申请日：2005-08-30

申请人： Hui Shi ,  Tetsushi Abe ,  Takahiro Asai ,  Hitoshi Yoshino

发明人： Hui Shi ,  Tetsushi Abe ,  Takahiro Asai ,  Hitoshi Yoshino

IPC分类号： H04L25/52 ,  H04B7/14

CPC分类号： H04B7/026 ,  H04B7/15528 ,  H04L1/0618 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/0246 ,  H04L25/20 ,  H04W52/46 ,  H04W88/04

摘要： A communication node that relays signals between a source node and a destination node includes (a) a first unitary matrix calculation unit configured to calculate a first unitary matrix based on a first channel between the source node and the relay node, (b) a second unitary matrix calculation unit configured to calculate a second unitary matrix based on a second channel between the relay node and the destination node, (c) a transformation matrix estimation unit configured to estimate a transformation matrix based on a triangular matrix derived from QR decomposition of the first and/or second channel matrix, (d) a relaying signal generator configured to generates a relaying signal by multiplying a received signal by at least one of the first unitary matrix, the second unitary matrix, and the transformation matrix, and (e) a transmission unit configured to transmit the relaying signal to the destination node.

摘要翻译： 在源节点和目的地节点之间中继信号的通信节点包括：（a）第一单位矩阵计算单元，被配置为基于源节点和中继节点之间的第一信道来计算第一单位矩阵，（b）第二单元矩阵计算单元， 酉矩阵计算单元，被配置为基于中继节点和目的地节点之间的第二信道来计算第二酉矩阵，（c）变换矩阵估计单元，被配置为基于从QR分解导出的三角矩阵来估计变换矩阵 第一和/或第二信道矩阵，（d）中继信号发生器，被配置为通过将接收信号乘以第一单位矩阵，第二单位矩阵和变换矩阵中的至少一个来生成中继信号，以及（e） 发送单元，被配置为将中继信号发送到目的地节点。

公开(公告)号：US07502341B2

公开(公告)日：2009-03-10

申请号：US11232009

申请日：2005-09-22

申请人： Naoto Matoba ,  Masashige Shirakabe ,  Takatoshi Sugiyama ,  Hitoshi Yoshino

发明人： Naoto Matoba ,  Masashige Shirakabe ,  Takatoshi Sugiyama ,  Hitoshi Yoshino

IPC分类号： H04Q7/20

CPC分类号： H04L1/0009 ,  H04L1/0003 ,  H04L1/0071 ,  H04L1/04 ,  H04W16/14 ,  H04W72/0453 ,  H04W72/1215 ,  H04W72/1226 ,  H04W88/06 ,  H04W88/10

摘要： A transmitter used in the multiband environment includes a frequency allocation unit (106) configured to select and allocate a frequency band that satisfies a user QoS from among multiple separate frequency bands currently available for the user, a parameter determination unit (111) configured to determine a transmission parameter required for signal transmission based on the allocated frequency band, and a multi-user scheduling control unit (110) configured to determine a transmission schedule for multiple users taking into account the frequency bands allocated to the multiple users.

摘要翻译： 在多频带环境中使用的发射机包括：频率分配单元（106），被配置为从当前可用于用户的多个分离频带中选择并分配满足用户QoS的频带;参数确定单元（111），被配置为： 基于分配的频带进行信号传输所需的传输参数;以及多用户调度控制单元，被配置为考虑分配给多个用户的频带来确定多个用户的传输调度。

公开(公告)号：US07418248B2

公开(公告)日：2008-08-26

申请号：US11111942

申请日：2005-04-22

申请人： Koji Maeda ,  Satoru Fukumoto ,  Hitoshi Yoshino

发明人： Koji Maeda ,  Satoru Fukumoto ,  Hitoshi Yoshino

IPC分类号： H04B1/06

CPC分类号： H04L25/0328 ,  H04B1/12

摘要： A signal reception device is disclosed that is able to improve interference cancellation capabilities even when signals having different center frequencies exist on the same frequency band. The signal reception device includes an interference suppression unit to generate replicas of plural signals in the received signal and separate the signals by suppressing interference signals. The interference suppression unit includes a signal phase rotator to rotate phases of the signal candidates at preset respective rotational frequencies, the preset rotational frequencies being related to respective center frequencies of the signals in the received signal; a rotational frequency controller to set the preset rotational frequencies; and a replica generator to generate the replicas of the signals by using the phase-rotated signal candidates.

摘要翻译： 公开了即使当具有不同中心频率的信号存在于相同频带上时也能够改善干扰消除能力的信号接收装置。 信号接收装置包括：干扰抑制部，生成接收信号中的多个信号的副本，并通过抑制干扰信号来分离信号。 干扰抑制单元包括信号相位旋转器，用于以预设的各个旋转频率旋转信号候选的相位，预设的旋转频率与接收信号中的信号的相应中心频率相关; 旋转频率控制器，用于设定预设的旋转频率; 以及副本生成器，用于通过使用相位旋转的信号候选来生成信号的副本。

公开(公告)号：US07409017B2

公开(公告)日：2008-08-05

申请号：US11046841

申请日：2005-02-01

申请人： Koji Maeda ,  Satoru Fukumoto ,  Hitoshi Yoshino

发明人： Koji Maeda ,  Satoru Fukumoto ,  Hitoshi Yoshino

IPC分类号： H03D1/00

CPC分类号： H04L25/0328 ,  H04B2201/70703 ,  H04L25/03254 ,  H04L25/03292 ,  H04L2025/03375 ,  H04L2025/0349

摘要： A signal separator for separating multiple signals contained in a received signal from each other based on a replica of the received signal is provided. The signal separator comprises a sampling unit configured to sample the received signal at a prescribed sampling timing; an index output unit configured to monitor sampling counts of the sampling unit and output an index signal representing a remainder of a division dividing the sampling counts by a sampling number per a prescribed time period to group the sampled signals; a coefficient-variable filter configured to generate and output a replica of the received signal based on a channel estimation value and a signal point candidate, at least one of the channel estimation value and the signal point candidate being generated according to the index signal; a subtractor configured to subtract the replica from the sampled signal and output a subtraction result as a residual signal; and a maximum likelihood sequence estimator configured to estimate a sequence for each of the multiple signals based on the residual signal, taking into account signal state transition, and output the estimation result at a signal output timing determined by the index signal.

摘要翻译： 提供了一种信号分离器，用于基于接收信号的副本将包含在接收信号中的多个信号彼此分离。 信号分离器包括：采样单元，被配置为在规定的采样定时对接收信号进行采样; 索引输出单元，被配置为监视采样单元的采样计数，并输出表示采样计数除以每个规定时间段的采样数的除法余数的索引信号，以对采样信号进行分组; 系数可变滤波器，被配置为基于信道估计值和信号点候选来生成并输出接收信号的副本，根据索引信号生成信道估计值和信号点候补中的至少一个; 减法器，被配置为从所述采样信号中减去所述副本，并将减法结果作为残差信号输出; 以及最大似然序列估计器，被配置为基于所述残差信号来估计每个所述多个信号的序列，并考虑信号状态转换，并且在由所述索引信号确定的信号输出定时输出所述估计结果。

公开(公告)号：US20080062896A1

公开(公告)日：2008-03-13

申请号：US11851873

申请日：2007-09-07

申请人： Masashige SHIRAKABE ,  Takahiro Asai ,  Naoto Matoba ,  Hitoshi Yoshino

发明人： Masashige SHIRAKABE ,  Takahiro Asai ,  Naoto Matoba ,  Hitoshi Yoshino

IPC分类号： H04B7/005

CPC分类号： H04B7/26

摘要： To provide a radio communication control apparatus and a radio communication control method capable of controlling simultaneous transmission and reception so as not to degrade system throughput.A simultaneous transmission and reception controller 106 determines whether the simultaneous transmission and reception using the same frequency are possible, based on radio spectrum environment information of an opposite party of communication and radio spectrum environment information of a self-apparatus. When the simultaneous transmission and reception using the same frequency are determined to be possible, a control signal transmission section 109 transmits instruction information, indicating that the simultaneous transmission and reception are possible, and a transmission parameter thereof, to the above communication terminal. After the transmission parameter is set, a communication section 111 executes simultaneous transmission and reception with the above communication terminal using the same frequency, when the simultaneous transmission and reception using the same frequency are determined to be possible.

摘要翻译： 提供能够同时进行发送接收的无线通信控制装置和无线通信控制方法，以不降低系统吞吐量。 同时发送和接收控制器106基于自身装置的通信对方和无线电频谱环境信息的无线电频谱环境信息来确定是否可以使用相同频率的同时发送和接收。 当使用相同频率的同时发送和接收被确定为可能时，控制信号发送部分109向上述通信终端发送指示同时发送和接收可能的指令信息及其发送参数。 在设置了传输参数之后，当确定可以使用相同频率的同时发送和接收时，通信部分111使用相同的频率来执行与上述通信终端的同时发送和接收。

公开(公告)号：US20080026704A1

公开(公告)日：2008-01-31

申请号：US11828862

申请日：2007-07-26

申请人： Koji Maeda ,  Takahiro Asai ,  Anass Benjebbour ,  Hitoshi Yoshino

发明人： Koji Maeda ,  Takahiro Asai ,  Anass Benjebbour ,  Hitoshi Yoshino

IPC分类号： H04B1/02 ,  G06F3/033 ,  H04B7/24

CPC分类号： H04L5/023 ,  H04W4/08

摘要： A wireless transmitter comprises ID signal storage module for storing an ID signal that identifies a group to which a data signal to be transmitted belongs and provides, for each group, second or higher-order statistic properties unique to each group; modulator for modulating the data signal; wireless signal ID assignment module for associating the modulated signal thus modulated with the stored ID signal and for generating a signal to be transmitted, by assigning second or higher-order statistic properties that correspond with the ID signal to the modulated signal that is associated with the ID signal; and wireless signal transmission module for wirelessly transmitting the signal thus generated.

摘要翻译： 无线发射机包括ID信号存储模块，用于存储标识要发射的数据信号所属的组的ID信号，并为每个组提供每个组唯一的第二或更高阶统计特性; 用于调制数据信号的调制器; 无线信号ID分配模块，用于将由此调制的调制信号与存储的ID信号相关联，并通过将与ID信号相对应的第二或更高阶统计特性分配给与该信号相关联的调制信号，来产生要发送的信号 ID信号; 以及用于无线发送由此产生的信号的无线信号传输模块。

公开(公告)号：US20070274372A1

公开(公告)日：2007-11-29

申请号：US11752714

申请日：2007-05-23

申请人： Takahiro Asai ,  Hui Shi ,  Hitoshi Yoshino ,  Satoshi Suyama ,  Kazuhiko Fukawa ,  Hiroshi Suzuki

发明人： Takahiro Asai ,  Hui Shi ,  Hitoshi Yoshino ,  Satoshi Suyama ,  Kazuhiko Fukawa ,  Hiroshi Suzuki

IPC分类号： H04L12/28

CPC分类号： H04B1/525 ,  H04B7/155

摘要： A radio communication apparatus for performing transmission and reception of radio communications simultaneously by using different carrier frequencies for transmission and reception, comprising: a transceiver having a coupling loop interference signal removal function for analog domain and/or a coupling loop interference signal removal function for digital domain, for removing a coupling loop interference signal contained in a signal; and a power suppressor for coupling loop interference signal for attenuating the signal power in order to suppress the coupling loop interference signal power that is contained in the signal.

摘要翻译： 一种无线电通信装置，用于通过使用不同的载波频率同时进行无线电通信的发送和接收，用于发送和接收，包括：收发器，具有用于模拟域的耦合环路干扰信号去除功能和/或用于数字的耦合环路干扰信号去除功能 域，用于去除包含在信号中的耦合环路干扰信号; 以及用于耦合环路干扰信号的功率抑制器，用于衰减信号功率，以便抑制信号中包含的耦合环路干扰信号功率。

公开(公告)号：US20070230547A1

公开(公告)日：2007-10-04

申请号：US11694124

申请日：2007-03-30

申请人： Takahiro ASAI ,  Hui Shi ,  Hiromasa Fujii ,  Takefumi Yamada ,  Hitoshi Yoshino ,  Hiroshi Suzuki ,  Kazuhiko Fukawa ,  Satoshi Suyama

发明人： Takahiro ASAI ,  Hui Shi ,  Hiromasa Fujii ,  Takefumi Yamada ,  Hitoshi Yoshino ,  Hiroshi Suzuki ,  Kazuhiko Fukawa ,  Satoshi Suyama

IPC分类号： H04L5/16

CPC分类号： H04B1/525

摘要： A radio communication apparatus for performing transmission and reception based on radio communication includes: a power suppressor for coupling loop interference signal for attenuating signal power of a received signal to suppress the coupling loop interference signal power of the received signal; and a transceiver having a coupling loop interference signal removal function for analog domain and/or a coupling loop interference signal removal function for digital domain, for removing a coupling loop interference signal contained in a signal output from the power suppressor for coupling loop interference signal.

摘要翻译： 一种用于基于无线电通信进行发送和接收的无线电通信装置包括：功率抑制器，用于耦合环路干扰信号，用于衰减接收信号的信号功率，以抑制接收信号的耦合环路干扰信号功率; 以及具有用于模拟域的耦合环路干扰信号去除功能和/或用于数字域的耦合环路干扰信号去除功能的收发器，用于去除包含在从功率抑制器输出的用于耦合环路干扰信号的信号中的耦合环路干扰信号。

公开(公告)号：US20070129008A1

公开(公告)日：2007-06-07

申请号：US11565958

申请日：2006-12-01

申请人： Hui SHI ,  Takahiro Asai ,  Hitoshi Yoshino

发明人： Hui SHI ,  Takahiro Asai ,  Hitoshi Yoshino

IPC分类号： H04B7/15

CPC分类号： H04B7/15585 ,  H04B7/2606

摘要： A communication node for relaying a signal between a source node and a destination node is disclosed. The communication node includes: a relay signal generation unit configured to generate a transmit signal by reducing, from a receive signal, an interference signal from another communication node and performing a process such that the transmit signal is not received as an interference signal by another communication node.

摘要翻译： 公开了一种用于在源节点和目的地节点之间中继信号的通信节点。 通信节点包括：中继信号生成单元，被配置为通过从接收信号减去来自另一通信节点的干扰信号并执行处理，从而通过另一个通信不将发送信号作为干扰信号接收来生成发送信号 节点。

公开(公告)号：US20070117582A1

公开(公告)日：2007-05-24

申请号：US11624313

申请日：2007-01-18

申请人： Shinzo Ohkubo ,  Hitoshi Yoshino ,  Shiro Kikuchi ,  Toru Otsu

发明人： Shinzo Ohkubo ,  Hitoshi Yoshino ,  Shiro Kikuchi ,  Toru Otsu

IPC分类号： H04B7/00 ,  H04B1/00

CPC分类号： H04W52/54 ,  H04W52/143 ,  H04W52/245 ,  H04W52/248 ,  H04W52/327

摘要： The present invention relates to a radio communication system comprising base stations and mobile stations and a method for controlling transmission power in the system where the base station is able to perform multi-point transmission for transmitting the same signal to a plurality of the mobile stations. In the present invention, the mobile station targeted for the multi-point transmission provides the base station of an increase request or a decrease request of the transmission power by respectively transmitting or not transmitting a predetermined signal to the base station.

摘要翻译： 本发明涉及一种包括基站和移动站的无线电通信系统，以及一种用于控制系统中的发射功率的方法，其中基站能够执行多点传输以将相同的信号发射到多个移动台。 在本发明中，针对多点传输的移动台通过分别向基站发送或不发送预定信号来向基站提供发送功率的增加请求或减少请求。