公开(公告)号：US08711804B2

公开(公告)日：2014-04-29

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。

公开(公告)号：US20120115539A1

公开(公告)日：2012-05-10

申请号：US13257181

申请日：2010-03-17

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Miyoshi ,  Megumi Ichikawa

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Miyoshi ,  Megumi Ichikawa

IPC分类号： H04W56/00 ,  H04W4/00

CPC分类号： H04W56/0045 ,  Y02D70/1262

摘要： A method and device for adjusting a timing advance in a communication system composed of a mobile terminal and multiple base stations is provided. The method includes steps: the multiple base stations measures channel latencies and powers of channel responses between the mobile terminal and the multiple base stations separately; the non-serving base station in the multiple base stations reports the channel latency and the power measured to a serving base station; and the serving base station determines the timing advance of the uplink of the mobile terminal according to the channel latency and the power received and the channel latency and the power which are measured by the serving base station itself, and informs the mobile base station of the timing advance. By using the method and the device, the useful power received by the uplink multi-base stations can be optimized, and the interference power can be effectively reduced.

摘要翻译： 提供了一种用于调整由移动终端和多个基站组成的通信系统中的定时提前的方法和装置。 该方法包括以下步骤：多个基站分别测量移动终端与多个基站之间的信道响应的信道延迟和功率; 多个基站中的非服务基站向服务基站报告信道延迟和测量的功率; 并且服务基站根据信道等待时间和接收的功率以及由服务基站本身测量的信道延迟和功率来确定移动终端的上行链路的定时提前，并且向移动基站通知 时间提前。 通过使用该方法和装置，可以优化上行链路多基站接收到的有用功率，并且能够有效地降低干扰功率。

公开(公告)号：US07907973B2

公开(公告)日：2011-03-15

申请号：US11828986

申请日：2007-07-26

申请人： Masayuki Hoshino ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04M1/00

CPC分类号： H04B7/0695 ,  H04B7/0604 ,  H04L1/0003 ,  H04L1/0009 ,  H04W16/28

摘要： A directivity control section 103 performs weight control over a received signal using channel estimation and optimum weights, performs processing such as generation of the received signal and generates a plurality of weight-controlled transmission signals. A received signal demodulation section 104 extracts an SIR measurement result from the received signal. A scheduler section 105 decides which terminal should be assigned to a channel to be adaptively modulated from the SIR measurement result and at the same time decides the modulation multi-valued number and coding rate of the signal to the terminal. A transmission signal generation section 106 modulates a transmission signal such as a reference signal or packet data. A directivity switching instruction section 107 controls switching between directivities so as to maintain the same directivity after the reference signal is transmitted with a directivity until packet data is transmitted with a directivity. This makes it possible to receive packet data with high quality, improve efficiency of a radio frequency band and maximize communication path utilization efficiency.

摘要翻译： 指向性控制部分103使用信道估计和最佳权重对接收信号进行加权控制​​，执行诸如生成接收信号的处理，并产生多个加权控制传输信号。 接收信号解调部分104从接收信号中提取SIR测量结果。 调度器部分105根据SIR测量结果决定哪个终端应该被分配给要自适应调制的信道，并且同时将该信号的调制多值数量和编码率确定给终端。 发送信号生成部106调制诸如参考信号或分组数据的发送信号。 指向性切换指令部分107控制方向性之间的切换，以便在以指向性发送参考信号之后保持相同的方向性，直到分组数据以方向性发送。 这使得可以高质量地接收分组数据，提高无线电频带的效率并最大化通信路径利用效率。

公开(公告)号：US20060094468A1

公开(公告)日：2006-05-04

申请号：US10534275

申请日：2003-11-10

申请人： Masayuki Hoshino ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04B1/38

CPC分类号： H04B7/0695 ,  H04B7/0604 ,  H04L1/0003 ,  H04L1/0009 ,  H04W16/28

摘要： A directivity control section 103 performs weight control over a received signal using channel estimation and optimum weights, performs processing such as generation of the received signal and generates a plurality of weight-controlled transmission signals. A received signal demodulation section 104 extracts an SIR measurement result from the received signal. A scheduler section 105 decides which terminal should be assigned to a channel to be adaptively modulated from the SIR measurement result and at the same time decides the modulation multi-valued number and coding rate of the signal to the terminal. A transmission signal generation section 106 modulates a transmission signal such as a reference signal or packet data. A directivity switching instruction section 107 controls switching between directivities so as to maintain the same directivity after the reference signal is transmitted with a directivity until packet data is transmitted with a directivity. This makes it possible to receive packet data with high quality, improve efficiency of a radio frequency band and maximize communication path utilization efficiency.

摘要翻译： 指向性控制部分103使用信道估计和最佳权重对接收信号进行加权控制​​，执行诸如生成接收信号的处理，并产生多个加权控制传输信号。 接收信号解调部分104从接收信号中提取SIR测量结果。 调度器部分105根据SIR测量结果确定哪个终端应该被分配给要自适应调制的信道，并且同时将该信号的调制多值数量和编码率确定到终端。 发送信号生成部106调制诸如参考信号或分组数据的发送信号。 指向性切换指令部分107控制方向性之间的切换，以便在以指向性发送参考信号之后保持相同的方向性，直到分组数据以方向性发送。 这使得可以高质量地接收分组数据，提高无线电频带的效率并最大化通信路径利用效率。

公开(公告)号：US20120120884A1

公开(公告)日：2012-05-17

申请号：US13119796

申请日：2009-08-31

申请人： Qian Yu ,  Masayuki Hoshino ,  Daichi Imamura ,  Kenichi Miyoshi ,  Megumi Ichikawa

发明人： Qian Yu ,  Masayuki Hoshino ,  Daichi Imamura ,  Kenichi Miyoshi ,  Megumi Ichikawa

IPC分类号： H04W74/04 ,  H04W52/04 ,  H04W72/04

CPC分类号： H04B7/0426 ,  H04B7/0452 ,  H04B7/0663

摘要： Interference between users in an MU-MIMO system is minimized by effective precoding, without increasing an overhead of control data. In a wireless communication system in which multiplex communication is possible between multiple UE1, UE2, and BS, a channel estimation and precoding selection unit 539 in BS estimates channels from the respective UE1, UE2 to the BS, determines a precoding matrix P from a projection matrix to make the two channel response matrices orthogonal or nearly orthogonal, and feeds back the precoding matrix P to UE2, and executes precoding on only UE2 of the two. A precoding unit 524 in the UE2 employs the precoding matrix P that has been notified to perform precoding of a data stream, and sends the precoded data stream to the BS.

摘要翻译： 在MU-MIMO系统中的用户之间的干扰通过有效的预编码被最小化，而不增加控制数据的开销。 在可以在多个UE1，UE2和BS之间进行复用通信的无线通信系统中，BS中的信道估计和预编码选择单元539估计来自相应UE1，UE2到BS的信道，从投影中确定预编码矩阵P 矩阵，以使两个信道响应矩阵正交或接近正交，并且将预编码矩阵P反馈到UE2，并且仅在两者的UE2上执行预编码。 UE2中的预编码单元524采用已经通知的预编码矩阵P来执行数据流的预编码，并将预编码的数据流发送到BS。

公开(公告)号：US20110299407A1

公开(公告)日：2011-12-08

申请号：US13201779

申请日：2010-02-17

申请人： Yoshiko Saito ,  Masayuki Hoshino ,  Kenichi Miyoshi ,  Seigo Nakao ,  Daichi Imamura

发明人： Yoshiko Saito ,  Masayuki Hoshino ,  Kenichi Miyoshi ,  Seigo Nakao ,  Daichi Imamura

IPC分类号： H04W72/06 ,  H04W24/00

CPC分类号： H04B7/0413 ,  H04B7/0697 ,  H04L25/0248 ,  H04W28/20 ,  H04W72/087

摘要： A base station apparatus, in a wireless communication system supporting band aggregation, able to limit drops in throughput while lowering the amount of control information for the rank of an added band; and a terminal device and rank setting method of the same. An added band rank setting unit (108) includes a memory (1084) which defines, as a rank and from the eigenvalue distributions of the channel matrices of the master band and added band, the number of eigenvalues of the channel matrix of the added band that satisfy channel quality according to the rank of the master band, and associates that number with the frequency band and rank of the master band and the frequency band of the added band. The added band rank setting unit (108) acquires, from the memory (1084), the rank that is associated with the information on the frequency band and rank of the master band and the information on the frequency band of the added band, and sets the same as the rank of the added band.

摘要翻译： 支持频带聚合的无线通信系统中的基站装置能够限制吞吐量下降，同时降低对附加频带的等级的控制信息量; 以及终端装置及其等级设定方法。 附加的频带等级设置单元（108）包括存储器（1084），该存储器定义了主频带和相加频带的信道矩阵的等级和特征值分布，添加频带的信道矩阵的特征值的数量 其根据主频带的等级满足信道质量，并且将该数量与主频带的频带和等级以及所添加的频带的频带相关联。 所附加的频带等级设置单元（108）从存储器（1084）获取与关于主频带的频带和等级的信息以及关于添加频带的频带的信息相关联的等级，并且设置 与添加的乐队的等级相同。

公开(公告)号：US20100142630A1

公开(公告)日：2010-06-10

申请号：US11996919

申请日：2006-07-27

申请人： Kenichi Kuri ,  Kenichi Miyoshi ,  Daichi Imamura ,  Akihiko Nishio ,  Masaru Fukuoka ,  Masayuki Hoshino

发明人： Kenichi Kuri ,  Kenichi Miyoshi ,  Daichi Imamura ,  Akihiko Nishio ,  Masaru Fukuoka ,  Masayuki Hoshino

IPC分类号： H04L27/28 ,  H04L27/00

CPC分类号： H04L1/08 ,  H04L1/0071 ,  H04L25/0226 ,  H04L27/261

摘要： A multicarrier transmitting apparatus capable of improving the data symbol error rate characteristic to improve the reception quality. In this apparatus, a replacement position deciding part (141) decides, based on a number of replacements notified of by a scheduler (110), which one of a plurality of data symbols should replaced by a second pilot. Herein, a restricted condition, which is ‘RF after replacement is equal to or greater than RF before replacement minus one’, is satisfied. A replacing part (142) replaces, in accordance with the replacement position outputted from the replacement position deciding part (141), a part of the data symbols included in a repetition signal by a second pilot symbol, and outputs the resultant replaced signal to an IFFT part (105).

摘要翻译： 一种能够提高数据符号错误率特性以提高接收质量的多载波发送装置。 在该装置中，替换位置决定部141基于由调度器（110）通知的更换次数，决定多个数据符号中的哪一个应由第二导频代替。 这里，满足“更换之后的RF等于或大于置换之前的RF减1”的限制条件。 替换部件142根据由替换位置决定部件141输出的替换位置，用第二导频符号替换包含在重复信号中的数据符号的一部分，并将所得到的替换信号输出到 IFFT部分（105）。

公开(公告)号：US20090298509A1

公开(公告)日：2009-12-03

申请号：US12160408

申请日：2007-01-18

申请人： Masayuki Hoshino ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04W72/08 ,  H04W72/00

CPC分类号： H04B7/0417 ,  H04B7/0408 ,  H04B7/0632 ,  H04W72/08

摘要： Disclosed are a radio transmission device and a radio transmission method capable of reducing a reception error of a user at other cell and improving transmission efficiency at the other cell when frequency scheduling is combined with beam forming. In the device and the method, a beam allocation table storage unit (101) has a table in which resource blocks bm1, bm2, bm3, bm4 arranged in the ascending order of the frequency are repeatedly allocated by using four beams bm1 to bm4 for the number of resource blocks fn. According to beam information and SIR information fed back from a reception device (150), a resource control unit (102) references the beam allocation table storage unit (101), selects a combination of a beam direction and a resource block having the most preferable SIR, and allocates the combination for the user.

摘要翻译： 公开了一种无线传输装置和无线传输方法，其能够在频率调度与波束成形相结合时，降低其他小区的用户的接收误差，提高其他小区的传输效率。 在装置和方法中，波束分配表存储单元（101）具有通过使用四个波束bm1〜bm4重复分配以频率升序排列的资源块bm1，bm2，bm3，bm4， 资源块数fn。 根据从接收装置（150）反馈的波束信息和SIR信息，资源控制单元（102）参考波束分配表存储单元（101），选择波束方向和具有最优选的资源块的组合 SIR，并为用户分配组合。

公开(公告)号：US20080020716A1

公开(公告)日：2008-01-24

申请号：US11828986

申请日：2007-07-26

申请人： Masayuki Hoshino ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04B1/38

CPC分类号： H04B7/0695 ,  H04B7/0604 ,  H04L1/0003 ,  H04L1/0009 ,  H04W16/28

摘要： A directivity control section 103 performs weight control over a received signal using channel estimation and optimum weights, performs processing such as generation of the received signal and generates a plurality of weight-controlled transmission signals. A received signal demodulation section 104 extracts an SIR measurement result from the received signal. A scheduler section 105 decides which terminal should be assigned to a channel to be adaptively modulated from the SIR measurement result and at the same time decides the modulation multi-valued number and coding rate of the signal to the terminal. A transmission signal generation section 106 modulates a transmission signal such as a reference signal or packet data. A directivity switching instruction section 107 controls switching between directivities so as to maintain the same directivity after the reference signal is transmitted with a directivity until packet data is transmitted with a directivity. This makes it possible to receive packet data with high quality, improve efficiency of a radio frequency band and maximize communication path utilization efficiency.

摘要翻译： 指向性控制部分103使用信道估计和最佳权重对接收信号进行加权控制​​，执行诸如生成接收信号的处理，并产生多个加权控制传输信号。 接收信号解调部分104从接收信号中提取SIR测量结果。 调度器部分105根据SIR测量结果确定哪个终端应该被分配给要自适应调制的信道，并且同时将该信号的调制多值数量和编码率确定到终端。 发送信号生成部106调制诸如参考信号或分组数据的发送信号。 指向性切换指令部分107控制方向性之间的切换，以便在以指向性发送参考信号之后保持相同的方向性，直到分组数据以方向性发送。 这使得可以高质量地接收分组数据，提高无线电频带的效率并最大化通信路径利用效率。

公开(公告)号：US07266346B2

公开(公告)日：2007-09-04

申请号：US10534275

申请日：2003-11-10

申请人： Masayuki Hoshino ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B7/0695 ,  H04B7/0604 ,  H04L1/0003 ,  H04L1/0009 ,  H04W16/28

摘要： A reception quality reporting system may include a communication terminal that measures reception directivity quality in a quality decision signal received from a base station apparatus. The communication terminal decides a switching timing at which directivities of packet data are switched based on directivity switching timing information communicated by the base station and nullifies the reception quality measured in a period before the switching timing. The communication terminal transmits to the base station apparatus reception quality information indicating the measured reception quality.

摘要翻译： 接收质量报告系统可以包括测量从基站装置接收的质量判定信号中的接收方向性质量的通信终端。 通信终端基于由基站传送的方向性切换定时信息来决定分组数据的方向性的切换定时，并且使切换定时之前的周期中测量的接收质量无效。 通信终端向基站装置发送表示测定的接收质量的接收质量信息。