公开(公告)号：US20130279358A1

公开(公告)日：2013-10-24

申请号：US13883300

申请日：2011-11-07

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H04L1/0026 ,  H04L1/007 ,  H04L1/0077 ,  H04L1/1812 ,  H04W24/10 ,  H04W28/04 ,  H04W84/045

摘要： The present invention provides a mobile terminal apparatus, a base station apparatus, and a communication control method, which allow control suitable for interference reduction in a layered network such as HetNet, and which support a next-generation mobile communication system. A mobile terminal apparatus has a receiving section (103) that receives radio frames of a lower cell, in which a protected subframe, the transmission of which by a higher cell is suppressed, and a non-protected subframe, the transmission of which by the higher cell is not suppressed, coexist, a measurement section (112) that measures reception quality from reference signals multiplexed individually on the protected subframe and the non-protected subframe, a feedback information reduction section (114) that calculates a difference value between the reception quality of the protected subframe and the reception quality of the non-protected subframe, and a transmission section (103) that reports reception quality information of the protected subframe, and the difference value calculated in the feedback information reduction section (114), to a base station apparatus (20B).

摘要翻译： 本发明提供一种移动终端装置，基站装置和通信控制方法，其允许适用于诸如HetNet的分层网络中的干扰减少的控制，并且其支持下一代移动通信系统。 一种移动终端装置具有：接收部（103），其接收下位单元的无线帧，其中受保护的子帧（其被较高小区的传输被抑制）和非保护子帧， 较高的单元不被抑制，并存，用于根据在保护的子帧和非保护子帧上单独复用的参考信号来测量接收质量的测量部分（112），反馈信息减少部分（114），其计算接收之间的差值 保护子帧的质量和非保护子帧的接收质量，以及报告保护子帧的接收质量信息的发送部（103）以及反馈信息减少部（114）中计算出的差值。 基站装置（20B）。

公开(公告)号：US20130142278A1

公开(公告)日：2013-06-06

申请号：US13738701

申请日：2013-01-10

申请人： Hidekazu Taoka ,  Tetsushi Abe

发明人： Hidekazu Taoka ,  Tetsushi Abe

IPC分类号： H04B7/04

CPC分类号： H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0689

摘要： A transmitter includes multiple transmit antennas, a conversion unit configured to generate multiple signal sequences corresponding to a predefined frequency bandwidth from one or more transmission streams associated with any of the transmit antennas, a precoding unit configured to weight the signal sequences with a precoding matrix selected from a codebook including multiple predefined precoding matrices, and a transmitting unit configured to convert an output signal from the precoding unit into a number of signals corresponding to the number of transmit antennas and transmit the converted signals from the transmit antennas. The precoding unit applies distinct precoding matrices to different signal sequences, and an association between the distinct precoding matrices and the different signal sequences is determined through open-loop control being independent of a feedback from a receiver.

摘要翻译： 发射机包括多个发射天线，转换单元被配置为从与所述发射天线中的任一发射天线相关联的一个或多个传输流中生成对应于预定频率带宽的多个信号序列;预编码单元，被配置为用所选择的预编码矩阵对所述信号序列进行加权 以及发送单元，被配置为将来自所述预编码单元的输出信号转换为与所述发送天线的数量对应的多个信号，并且从所述发送天线发送所述转换的信号。 预编码单元将不同的预编码矩阵应用于不同的信号序列，并且不同的预编码矩阵和不同信号序列之间的关联通过开环控制来确定，独立于来自接收机的反馈。

公开(公告)号：US20130109297A1

公开(公告)日：2013-05-02

申请号：US13703375

申请日：2011-06-15

申请人： Satoshi Nagata ,  Tetsushi Abe

发明人： Satoshi Nagata ,  Tetsushi Abe

IPC分类号： H04B7/14

CPC分类号： H04B7/14 ,  H04B7/15528 ,  H04W24/00 ,  H04W84/047 ,  H04W88/085

摘要： To provide a radio relay station apparatus and radio relay method for enabling the radio relay station apparatus to identify a multi-hop relay signal and relay a downlink signal suitably, a first radio relay station apparatus or a radio base station apparatus generates a control signal indicative of passing through a radio relay station apparatus, and transmits the control signal in downlink, and a second radio relay station apparatus receives the control signal, demodulates a downlink signal based on the control signal, modulates the demodulated downlink signal, and transmits the modulated downlink signal.

摘要翻译： 为了提供一种使无线中继站装置能够识别多跳中继信号并适当地中继下行链路信号的无线中继站装置和无线中继方法，第一无线中继站装置或无线基站装置生成指示 通过无线中继站装置，在下行链路中发送控制信号，第二无线中继站装置接收控制信号，根据控制信号对下行链路信号进行解调，对解调下行链路信号进行调制，发送调制后的下行链路 信号。

公开(公告)号：US20130084879A1

公开(公告)日：2013-04-04

申请号：US13261460

申请日：2011-04-05

申请人： Tetsushi Abe ,  Satoshi Nagata ,  Nobuhiko Miki ,  Sangiamwong Jaturong

发明人： Tetsushi Abe ,  Satoshi Nagata ,  Nobuhiko Miki ,  Sangiamwong Jaturong

IPC分类号： H04W72/08

CPC分类号： H04W72/042 ,  H04W16/16 ,  H04W24/02 ,  H04W72/082 ,  H04W72/1205 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

摘要： To provide a base station apparatus, mobile terminal apparatus and communication control method for enabling control adapted to interference inside a Heterogeneous network to be performed to support the next-generation mobile communication system, a base station apparatus (20) shares at least a part of the frequency band with another base station apparatus (40) that covers a macro-cell, covers a pico-cell (C1), is capable of transmitting a downlink transmission frame at transmission timing different from the another base station apparatus (40), and is configured to set resources, in which the downlink transmission frame undergoes interference from another downlink transmission frame including a blank period transmitted from the another base station apparatus (40), as blank resources, and assign user data to the downlink transmission frame while avoiding the blank resources.

摘要翻译： 为了提供一种基站装置，移动终端装置和通信控制方法，用于使得能够进行适应于要执行的异构网络内的干扰以支持下一代移动通信系统的控制，基站装置（20）至少共享一部分 覆盖宏小区的另一基站装置（40）的频带覆盖微微小区（C1），能够在与另一基站装置（40）不同的发送定时发送下行链路发送帧， 被配置为设置资源，其中下行链路传输帧经受来自包括从另一个基站装置（40）发送的空白周期的另一个下行链路传输帧的干扰作为空白资源，并且将用户数据分配给下行链路传输帧，同时避免 空白资源。

公开(公告)号：US20130064200A1

公开(公告)日：2013-03-14

申请号：US13640068

申请日：2011-04-05

申请人： Kazuaki Takeda ,  Nobuhiko Miki ,  Tetsushi Abe

发明人： Kazuaki Takeda ,  Nobuhiko Miki ,  Tetsushi Abe

IPC分类号： H04W72/04 ,  H04W88/00

CPC分类号： H04L1/1854 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0016 ,  H04L5/0051 ,  H04L5/0055 ,  H04W72/00 ,  H04W72/12 ,  H04W88/10

摘要： To provide a base station apparatus, a mobile terminal apparatus and a communication control method supporting respectively a plurality of mobile communication systems coexist mutually. The base station apparatus in a radio communications system in which an LTE-A system and an LTE system are placed so as to coexist with each other, the LTE-A system having a system band composed of a plurality of component carriers, the LTE system having a system band composed of a single component carrier, the base station apparatus is configured to generate ACK/NACK of HARQ to uplink transmission of a plurality of the component carriers, set offset as 0 to the component carrier used in the LTE system, set the offset to be increased beginning at the aforementioned component carrier in order of being circuited among the plurality of the component carriers, and add the aforementioned offset to the allocation resource of ACK/NACK.

摘要翻译： 提供分别支持多个移动通信系统的基站装置，移动终端装置和通信控制方法共存。 在LTE-A系统和LTE系统相互共存的无线通信系统中，具有由多个分量载波构成的系统频带的LTE-A系统的LTE基站装置，LTE系统 具有由单个分量载波构成的系统频带，所述基站装置被配置为生成针对所述LTE系统中使用的分量载波的偏移为0的HARQ的多个分量载波的上行链路传输的ACK / NACK， 从上述分量载波开始按照在多个分量载波之间循环的顺序增加的偏移量，并将上述偏移量加到ACK / NACK的分配资源上。

公开(公告)号：US07525939B2

公开(公告)日：2009-04-28

申请号：US11213886

申请日：2005-08-30

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

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

IPC分类号： H04Q7/00

CPC分类号： H04B7/0615 ,  H04B7/026 ,  H04B7/0842 ,  H04W40/02 ,  H04W52/46 ,  H04W88/04

摘要： A communication node relays a transmission signal transmitted from a desired source node to a target destination node among multiple source nodes and multiple destination nodes. The communication node includes a first unitary matrix estimation unit that estimates a first unitary matrix by performing singular value decomposition involving one or more channel matrices between the relay node and the source nodes other than the desired source node; a second unitary matrix estimation unit that estimates a second unitary matrix by performing singular value decomposition involving one or more channel matrices between the relay node and the destination nodes other than the target destination node; and a transmission unit configured to transmit a relaying signal generated by multiplying a received signal by the first and second unitary matrices toward the target destination node.

摘要翻译： 通信节点将从期望的源节点发送的发送信号中继到多个源节点和多个目的地节点中的目标目的地节点。 通信节点包括第一单位矩阵估计单元，其通过执行涉及中继节点和除所需源节点之外的源节点之间的一个或多个信道矩阵的奇异值分解来估计第一单位矩阵; 第二单位矩阵估计单元，通过执行涉及所述中继节点与所述目的地节点之外的目的地节点之间的一个或多个信道矩阵的奇异值分解来估计第二单位矩阵; 以及发送单元，被配置为将通过将接收信号乘以第一和第二单位矩阵而生成的中继信号发送到目标目的地节点。

公开(公告)号：US07469014B2

公开(公告)日：2008-12-23

申请号：US11166384

申请日：2005-06-27

申请人： Tetsushi Abe ,  Hiromasa Fujii ,  Hitoshi Yoshino

发明人： Tetsushi Abe ,  Hiromasa Fujii ,  Hitoshi Yoshino

IPC分类号： H04L5/12

CPC分类号： H04L25/03171 ,  H04B7/0891 ,  H04L25/03292 ,  H04L2025/0342

摘要： A receiver comprises multiple receiving antennas configured to receive bitstreams transmitted from multiple transmission antennas; a bitstream candidate estimator configured to estimate a prescribed number of bitstream candidates among possible combinations of the received bitstreams and to calculate reliability information for each of the candidates; a bit-based estimator configured to produce a bit-based estimation result for each bit of the transmitted bitstreams based on the estimated candidates and the associated reliability information, the bit-based estimation result being adjusted by an adjusting criterion determined by the reliability information; and a decoder configured to decode the transmitted bitstreams based on the adjusted bit-based estimation result.

摘要翻译： 接收机包括被配置为接收从多个发送天线发送的比特流的多个接收天线; 比特流候选估计器，被配置为在所接收的比特流的可能组合中估计规定数量的比特流候选，并且计算每个候选的可靠性信息; 基于比特的估计器，被配置为基于所估计的候选和相关联的可靠性信息来产生针对所发送的比特流的每个比特的基于比特的估计结果，所述基于比特的估计结果由所述可靠性信息确定的调整标准进行调整; 以及解码器，被配置为基于经调整的基于比特的估计结果对所发送的比特流进行解码。

公开(公告)号：US20050286618A1

公开(公告)日：2005-12-29

申请号：US11167314

申请日：2005-06-28

申请人： Tetsushi Abe

发明人： Tetsushi Abe

IPC分类号： H04J99/00 ,  H04B1/38 ,  H04L1/00 ,  H04L1/20 ,  H04L25/02

CPC分类号： H04L1/0015 ,  H04B7/0695 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/06 ,  H04L1/20 ,  H04L25/0204

摘要： A transceiver of a MIMO method communication system, and a transmitting-receiving method thereof are disclosed. The transceiver includes one or more antennas for receiving two or more signals transmitted using two or more transmission antennas, a channel estimating unit for estimating a channel of each of the signals, an error detecting unit for performing error detection of each signal based on reliability information added to the signal, and for determining a transmission rate of the signals based on at least one of the channel estimation result and the error detection result of each signal, and a transmission rate determining unit for adjusting the number of signals to be transmitted from the transmission antennas at a predetermined interval.

摘要翻译： 公开了MIMO方法通信系统的收发机及其发送接收方法。 收发器包括用于接收使用两个或多个发送天线发送的两个或更多信号的一个或多个天线，用于估计每个信号的信道的信道估计单元，用于基于可靠性信息执行每个信号的错误检测的错误检测单元 并且根据每个信号的信道估计结果和错误检测结果中的至少一个来确定信号的传输速率;以及传输速率确定单元，用于调整从所述信号发送的信号的数量， 发送天线。

公开(公告)号：US09806834B2

公开(公告)日：2017-10-31

申请号：US14114606

申请日：2012-04-24

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama ,  Kazuaki Takeda

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama ,  Kazuaki Takeda

IPC分类号： H04W4/00 ,  H04J1/02 ,  H04W72/12 ,  H04L5/00 ,  H04L25/02

CPC分类号： H04J1/02 ,  H04L5/0053 ,  H04L5/006 ,  H04L25/0224 ,  H04W72/1289

摘要： The present invention is designed such that it is possible to optimize the effect of improving the efficiency of use of radio resources even when the number of user terminals to be multiplexed over the same radio resources is further increased. A user terminal performs downlink communication with a radio base station using a PDCCH resource region and a PDSCH resource region. The user terminal detects the starting position of the radio resources where the PDSCH and the PDCCH are frequency-division-multiplexed in the PDSCH resource region in the time direction, and receives the PDCCH that is frequency-division-multiplexed over the radio resources starting from the detected starting position.

公开(公告)号：US09723569B2

公开(公告)日：2017-08-01

申请号：US14238148

申请日：2012-07-20

申请人： Daisuke Nishikawa ,  Satoshi Nagata ,  Tetsushi Abe

发明人： Daisuke Nishikawa ,  Satoshi Nagata ,  Tetsushi Abe

IPC分类号： H04B7/00 ,  H04W52/24 ,  H04L27/26 ,  H04W52/14 ,  H04W52/40

CPC分类号： H04W52/241 ,  H04L27/2614 ,  H04W52/146 ,  H04W52/242 ,  H04W52/244 ,  H04W52/245 ,  H04W52/247 ,  H04W52/248 ,  H04W52/40

摘要： The present invention is designed to provide a radio communication system which can control uplink transmission power adequately even in an HetNet environment. A radio communication system having a first radio base station apparatus and a second radio base station apparatus that is configured to able to communicate with the first radio base station apparatus is provided; and, in this radio communication system, the first radio base station apparatus has a first communication quality measurement section that measures the received quality of an uplink reference signal transmitted from a user terminal, and generates first received quality information, and a reporting section that reports the first communication quality information to the second radio base station apparatus, and the second radio base station apparatus has a second communication quality measurement section that measures the received quality of the uplink reference signal transmitted from the user terminal, and generates second communication quality information, a correction value determining section that determines a correction value for the transmission power of the user terminal on the uplink based on the first communication quality information and the second communication quality information, and a reporting section that reports the determined correction value to the user terminal.