公开(公告)号：US08588102B2

公开(公告)日：2013-11-19

申请号：US13375437

申请日：2010-04-27

申请人： Masayuki Hoshino ,  Akihiko Nishio ,  Seigo Nakao ,  Daichi Imamura ,  Yasuaki Yuda

发明人： Masayuki Hoshino ,  Akihiko Nishio ,  Seigo Nakao ,  Daichi Imamura ,  Yasuaki Yuda

IPC分类号： H04L1/00 ,  H04L12/26 ,  H04W4/00

CPC分类号： H04W72/04 ,  H04B7/0626 ,  H04B17/0085 ,  H04B17/24 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0027 ,  H04L1/1607 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/1268 ,  H04W88/02

摘要： To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus (eNB) transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses (UE1, UE2). Each of the reception apparatuses (UE1, UE2) detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.

摘要翻译： 在时域中以特定资源不连续地发送参考信号的情况下，抑制信道质量信息请求和报告的集中，从而防止吞吐量的劣化。 发送装置（eNB）向每个接收装置（UE1，UE2）向与每个接收装置分配的CSI请求同时或者早于参考信号CSI-RS发送CSI请求。 各接收装置（UE1，UE2）检测来自发送装置的CSI请求，并根据其后接收的CSI-RS的信道估计值来计算CSI。 然后，接收装置从预先通知的给定时间间隔的CSI报告间隔信息，检测到CSI请求的子帧和CSI-RS的发送定时的CSI报告间隔信息中识别自身设备的CSI报告子帧，并发送包括 CSI在CSI报告子帧的定时使用PUSCH的CSI报告值。

公开(公告)号：US20110222483A1

公开(公告)日：2011-09-15

申请号：US12672154

申请日：2008-08-12

申请人： Yasuaki Yuda ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu

发明人： Yasuaki Yuda ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu

IPC分类号： H04W72/04

CPC分类号： H04B7/065 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/1671

摘要： In the data transmission such as MCW, or the like using multiple streams, errors can be suppressed in feedback information while reducing an amount of information required for feedback every stream. A radio communication apparatus for performing data transmission by multiple code words in multiple streams and blanking transmission at retransmission, includes a Nack detector which detects Nack as a response signal that responds to a received result of code words from a communication partner station; a CQI bit number allocation deciding section which changes an allocation of CQI bit numbers between the multiple streams when Nack is detected; a feedback CQI information generator which generates CQI information of each stream; and a feedback information transmitter which transmits feedback information containing Ack/Nack information, ranking information of each stream, and generated CQI information.

摘要翻译： 在使用多个流的诸如MCW等的数据传输中，可以在反馈信息中抑制错误，同时减少每个流反馈所需的信息量。 一种无线电通信装置，用于在多个流中执行多个码字的数据传输，并且在重传时进行消隐传输，包括：Nack检测器，其检测Nack作为响应于来自通信对方站的接收到的码字的结果的响应信号; CQI比特数分配决定部，其在检测到Nack时，改变多个流之间的CQI比特数的分配; 产生每个流的CQI信息的反馈CQI信息生成器; 以及反馈信息发送器，其发送包含Ack / Nack信息的反馈信息，每个流的排序信息和生成的CQI信息。

公开(公告)号：US20110007834A1

公开(公告)日：2011-01-13

申请号：US12920447

申请日：2009-03-10

申请人： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Yasuaki Yuda

发明人： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Yasuaki Yuda

IPC分类号： H04B15/00

CPC分类号： H04W72/0406 ,  H04B1/16 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/08 ,  H04L1/1819 ,  H04L1/1887 ,  H04L1/1896 ,  H04W28/12 ,  H04W28/18

摘要： To improve throughput by reducing the resource used for transmitting a parameter relating to retransmission control and decreasing the overhead of retransmission control signaling. In a case where a retransmission control method is employed in consideration of adaptive MCS control in which the encoding rate can be changed, the scheduling section sets the MCS in accordance with CQI notified from the communication counterpart apparatus. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. For example, in a case where the encoding rate R is R>2/3, two bits are set. In a case where the encoding rate 1/3

摘要翻译： 通过减少用于发送与重传控制有关的参数的资源并减少重传控制信令的开销来提高吞吐量。 考虑到可以改变编码率的自适应MCS控制采用重传控制方法的情况下，调度部根据通信对方装置通知的CQI来设定MCS。 当传输数据被编码时，RV参数位数设置部分设置用于使RV参数发信号的位数减少，因为第一传输的编码速率降低，并且基于比特数设置RV参数。 例如，在编码率R为R> 2/3的情况下，设定2比特。 在编码率1/3

公开(公告)号：US06836245B2

公开(公告)日：2004-12-28

申请号：US10635411

申请日：2003-08-06

申请人： Takaaki Kishigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Masayuki Hoshino

发明人： Takaaki Kishigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Masayuki Hoshino

IPC分类号： G01S502

CPC分类号： G06K9/0057 ,  G01S3/74

摘要： A radio-wave arrival-direction apparatus calculates a correlation matrix of received signals by correlation calculation between antenna elements, and calculates a noise spatial eigenmatrix, of which each row or column is an eigenvector belonging to a noise eigen-space, by eigenvalue factorization of the correlation matrix. The apparatus also factorizes a matrix including a product of the noise spatial eigenmatrix and a conjugated and transposed matrix of it to an upper or lower triangular matrix, using cholesky factorization. The apparatus calculates an angle evaluation value in a predetermined angle range of an arrival-angle evaluation function using the derived upper or lower triangular matrix, and determines an arrival angle based on the calculation result. A calculation amount in a variable angle range can be thus reduced without causing accuracy degradation of arrival direction, in an algorism requiring an angle sweep for arrival angle estimation of MUSIC method or the like.

公开(公告)号：US09077472B2

公开(公告)日：2015-07-07

申请号：US13639214

申请日：2011-03-23

申请人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

发明人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

IPC分类号： H04L5/00 ,  H04L27/26 ,  H04W80/04 ,  H04W88/06 ,  H04W28/04 ,  H04W72/04 ,  H04J11/00

CPC分类号： H04J11/0023 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0039 ,  H04L5/0048

摘要： Provided are a wireless communication apparatus and a wireless communication method capable of reducing distortion of a CSI-RS and interference with other CSI-RSs. The wireless communication apparatus according to the invention includes: a CSI-RS generation section that generates CSI-RSs, an arrangement section that arranges the CSI-RSs in a single or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols, in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; and a transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS.

摘要翻译： 提供能够减少CSI-RS的失真和与其他CSI-RS的干扰的无线通信装置和无线通信方法。 根据本发明的无线通信装置包括：生成CSI-RS的CSI-RS生成部，将CSI-RS布置在位于多个OFDM符号之间的单个或多个连续的OFDM符号中的配置部， 其中除了CSI-RS之外的信号被布置，并且与排列有CSI-RS以外的信号的多个OFDM符号相邻; 以及发送部，其发送由所述配置部所配置的CSI-RS以外的信号和包含所述CSI-RS的发送信号。

公开(公告)号：US08605750B2

公开(公告)日：2013-12-10

申请号：US12993061

申请日：2009-05-13

申请人： Yoshiko Saito ,  Katsuhiko Hiramatsu ,  Ayako Horiuchi ,  Masayuki Hoshino ,  Shinsuke Takaoka ,  Seigo Nakao ,  Yasuaki Yuda ,  Kenichi Kuri ,  Megumi Ichikawa

发明人： Yoshiko Saito ,  Katsuhiko Hiramatsu ,  Ayako Horiuchi ,  Kenichi Miyoshi ,  Masayuki Hoshino ,  Shinsuke Takaoka ,  Seigo Nakao ,  Yasuaki Yuda ,  Kenichi Kuri

IPC分类号： H04J3/24 ,  H04Q11/04

CPC分类号： H04Q11/0478 ,  H04B7/026 ,  H04B7/15521 ,  H04W72/1231 ,  H04W84/047

摘要： A wireless relay station apparatus for enabling a mobile station and a base station to reliably receive network coding data and to provide sufficient reception performance is provided. (1) A repeater divides data X received from a mobile station into important data and non-important data and divides data Y received from eNB into important data and non-important data. Next, (2) the repeater places the data so that important data Sx for the mobile station and important data Sy for the eNB do not overlap, XORs (exclusive ORs) them, and generates network coding data X (X) Y. (3) The repeater applies downlink propagation inverse characteristic H1−1 to important data portion Px (X) Sy for the mobile station and on the other hand, applies uplink propagation inverse characteristic H0−1 to important data portion Sx (X) Py for the eNB in the network coding data X (X) Y for transmission.

摘要翻译： 提供了一种使移动台和基站可靠地接收网络编码数据并提供足够的接收性能的无线中继站装置。 （1）中继器将从移动站接收到的数据X划分为重要数据和非重要数据，并将从eNB接收的数据Y划分为重要数据和非重要数据。 接下来，（2）中继器将数据放置成使得移动站的重要数据Sx和eNB的重要数据Sy不重叠，XOR（异或）），并生成网络编码数据X（X）Y.（3 ）中继器将下行链路传播反向特性H1-1应用于移动台的重要数据部分Px（X）Sy，另一方面，将上行链路传播反向特性H0-1应用于eNB的重要数据部分Sx（X）Py 在用于传输的网络编码数据X（X）Y中。

公开(公告)号：US20130028217A1

公开(公告)日：2013-01-31

申请号：US13639214

申请日：2011-03-23

申请人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

发明人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

IPC分类号： H04W72/04

CPC分类号： H04J11/0023 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0039 ,  H04L5/0048

摘要： Provided are a wireless communication apparatus and a wireless communication method capable of reducing distortion of a CSI-RS and interference with other CSI-RSs. The wireless communication apparatus according to the invention includes: a CSI-RS generation section that generates CSI-RSs, an arrangement section that arranges the CSI-RSs in a single or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols, in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; and a transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS.

摘要翻译： 提供能够减少CSI-RS的失真和与其他CSI-RS的干扰的无线通信装置和无线通信方法。 根据本发明的无线通信装置包括：生成CSI-RS的CSI-RS生成部，将CSI-RS布置在位于多个OFDM符号之间的单个或多个连续的OFDM符号中的配置部， 其中除了CSI-RS之外的信号被布置，并且与排列有CSI-RS以外的信号的多个OFDM符号相邻; 以及发送部，其发送由所述配置部所配置的CSI-RS以外的信号和包含所述CSI-RS的发送信号。

公开(公告)号：US20100211844A1

公开(公告)日：2010-08-19

申请号：US12679726

申请日：2008-09-24

申请人： Yasuaki Yuda ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Atsushi Sumasu

发明人： Yasuaki Yuda ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Atsushi Sumasu

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/06 ,  H04L1/0025 ,  H04L1/1671 ,  H04L1/1893

摘要： Lowering of the frequency use efficiency and throughput is prevented while the blanking advantage is provided at the retransmission time in MCW using a plurality of streams per codeword. In a wireless communication apparatus for using a plurality of streams per codeword and performing data transmission according to a plurality of codewords, when two codewords are transmitted using four streams, for example, from a base station 101 to a user terminal 102, if retransmission occurs in the codeword, the codewords and the streams are arranged so as to decrease the number of streams with the number of codewords intact so that retransmission codeword is transmitted in two streams and new codeword is transmitted in one stream.

摘要翻译： 防止频率使用效率和吞吐量的降低，而在MCW中的重传时间使用每个码字的多个流提供消隐优势。 在每个码字使用多个流并根据多个码字执行数据传输的无线通信装置中，当使用四个流（例如从基站101到用户终端102）发送两个码字时，如果重发发生 在码字中，码字和流被布置为减少码字数量不变的流的数量，使得在两个流中发送重发码字，并且在一个流中传输新的码字。

公开(公告)号：US07117016B2

公开(公告)日：2006-10-03

申请号：US10383552

申请日：2003-03-10

申请人： Takaaki Kisigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Masayuki Hoshino

发明人： Takaaki Kisigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Masayuki Hoshino

IPC分类号： H04M1/00 ,  G01S5/02 ,  H03K9/00

CPC分类号： H04B7/086 ,  H04B1/712 ,  H04B7/0617

摘要： An adaptive antenna base station apparatus comprises an array antenna including N (N being a natural number) antenna elements; N reception sections for respectively performing orthogonal detection of high-frequency signals, respectively received by the antenna elements, after frequency conversion; N×M despreading sections for performing despreading operations, corresponding to delay times of M (M being a natural number) path components included in output signals of the reception sections; M correlation computing sections for performing correlations among the antenna elements for each path; a correlation combining section for combining output signals of the correlation computing sections; and a DOA estimating section for estimating a direction of arrival (DOA) by using an output of the correlation combining section. This can ensure collective estimation of DOAs of M path components, thereby reducing the amount of computation of estimating the DOAs for plural paths and the cost for the apparatus.

摘要翻译： 一种自适应天线基站装置，包括：N（N是自然数）天线元件的阵列天线; N个接收部分，用于在频率转换之后分别执行由天线元件接收的高频信号的正交检测; 用于执行解扩操作的NxM解扩部分，对应于包括在接收部分的输出信号中的M（M是自然数）路径分量的延迟时间; M个相关计算部分，用于对每个路径执行天线元件之间的相关; 相关组合部分，用于组合相关计算部分的输出信号; 以及用于通过使用相关合成部分的输出来估计到达方向（DOA）的DOA估计部分。 这可以确保对M路径分量的DOA的集体估计，从而减少对多路径的DOA估计的计算量和装置的成本。

公开(公告)号：US20090052392A1

公开(公告)日：2009-02-26

申请号：US11816166

申请日：2006-01-19

申请人： Atsushi Sumasu ,  Hidenori Kayama ,  Hiroki Haga ,  Masayuki Hoshino ,  Katsuyoshi Naka ,  Junya Yamazaki ,  Ryohei Kimura

发明人： Atsushi Sumasu ,  Hidenori Kayama ,  Hiroki Haga ,  Masayuki Hoshino ,  Katsuyoshi Naka ,  Junya Yamazaki ,  Ryohei Kimura

IPC分类号： H04W36/02

CPC分类号： H04L1/1887 ,  H04W36/02

摘要： A base station, a mobile station and a retransmission control method for enabling communication to be more efficiently performed. In a communication system comprising a base station (100) and a mobile station (200), a time period required for the retransmission of a transport packet to complete is determined, and a retransmission control is performed, based on the required time period, to change the order of executing the retransmission of the transport packet and a handover. In this way, when it is estimated that the retransmission will complete soon, the retransmission is caused to complete in a handover source system, thereby avoiding waste of communication resources used in the preceding transmission and retransmission processes. When it is estimated that the retransmission will continue for a while, the communication resources used in the preceding transmission and retransmission processes are wasted, but a more appropriate MCS can be assigned, in a handover destination system, so as to perform a retransmission, thereby enabling communication to be efficiently performed.

摘要翻译： 基站，移动站和重发控制方法，能够更有效地进行通信。 在包括基站（100）和移动站（200）的通信系统中，确定传输分组完成重传所需的时间段，并根据所需时间进行重发控制， 改变执行传输分组的重传的顺序和切换。 以这种方式，当估计重传将很快完成时，在切换源系统中重新发送完成，从而避免浪费在前面的传输和重传过程中使用的通信资源。 当估计重传将持续一段时间时，在先前的传输和重传过程中使用的通信资源被浪费，但是在切换目的地系统中可以分配更适合的MCS以便执行重传，由此 使得能够有效地执行通信。