公开(公告)号：US20130331110A1

公开(公告)日：2013-12-12

申请号：US13882648

申请日：2011-10-27

申请人： Yunjian Jia ,  Kenzaburo Fujishima

发明人： Yunjian Jia ,  Kenzaburo Fujishima

IPC分类号： H04L5/00

CPC分类号： H04L5/0035 ,  H04L5/0023 ,  H04L5/006 ,  H04L5/0069 ,  H04L5/0094 ,  H04W28/06 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/08

摘要： A base station performs an association between frequency range and combinations of a plurality of base stations including an local base station to notify a terminal of the association. According to the notified association, the terminal, for each frequency, calculates quality of communication with one base station or quality of communication with the combination of the plurality of base stations. The base station and the control station determine the base station/the plurality of base stations that communicate with the terminal, the wireless resource and the transmission scheme, based on the result. Further, the base station selects whether to notify an entirety of or a part of the association to the terminal using positional information of the terminal. Since the association information that is unnecessary for the terminal is not communicated, it is possible to further lighten the load of control.

摘要翻译： 基站执行频率范围和包括本地基站的多个基站的组合之间的关联，以向终端通知关联。 根据所通知的关联，终端针对每个频率，计算与一个基站的通信质量或者与多个基站的组合的通信质量。 基站和控制站根据结果确定与终端通信的基站/多个基站，无线资源和传输方案。 此外，基站使用终端的位置信息来选择是否向终端通知关联的全部或一部分。 由于终端不需要的关联信息不通信，因此能够进一步减轻控制的负担。

公开(公告)号：US08897161B2

公开(公告)日：2014-11-25

申请号：US13545386

申请日：2012-07-10

申请人： Kenzaburo Fujishima ,  Tsuyoshi Tamaki ,  Rintaro Katayama ,  Hitoshi Ishida

发明人： Kenzaburo Fujishima ,  Tsuyoshi Tamaki ,  Rintaro Katayama ,  Hitoshi Ishida

IPC分类号： H04L12/58 ,  H04W36/20 ,  H04W36/08

CPC分类号： H04W36/20 ,  H04W36/08

摘要： To reduce an uplink interference in a network with a first base station of a large output and a second base station of a small output. Detecting the interference, the second base station urges the first base station to hand over a terminal causing it to the second base station. Multiple base stations and one or more terminals exist in this system, each terminal connects with one base station, and a serving base station is changed according to a communication state of each terminal. If the different second base station other than the first base station to which the terminal connects detects a large interference, the second base station will multicast transmit information for urging handover to the base stations except itself. The base station having received the information specifies a terminal giving the interference to the second base station, and makes it to be handed over thereto.

摘要翻译： 减少具有大输出的第一基站和小输出的第二基站的网络中的上行链路干扰。 检测到干扰，第二基站敦促第一基站将终端移交给第二基站。 在该系统中存在多个基站和一个或多个终端，每个终端与一个基站连接，并且根据每个终端的通信状态改变服务基站。 如果除了终端所连接的第一基站之外的不同的第二基站检测到大的干扰，则第二基站将组播用于促使切换到除了自身之外的基站的传输信息。 已经接收到该信息的基站指定向第二基站发送干扰的终端，并且将其移交给其。

公开(公告)号：US08891390B2

公开(公告)日：2014-11-18

申请号：US13308672

申请日：2011-12-01

申请人： Hajime Kanzaki ,  Kenzaburo Fujishima ,  Mikio Kuwahara ,  Katsuhiko Tsunehara

发明人： Hajime Kanzaki ,  Kenzaburo Fujishima ,  Mikio Kuwahara ,  Katsuhiko Tsunehara

IPC分类号： H04L12/26 ,  H04B17/00 ,  H04B7/06 ,  H04B7/04

CPC分类号： H04B17/005 ,  H04B7/0426 ,  H04B7/068 ,  H04B17/24 ,  H04B17/345

摘要： Provided is a wireless communication system which includes a wireless communication unit using plural frequency bands and plural antennas. The system changes the transmission power of each antenna, based on the interference of each of the frequency bands from the neighbor base station along the antenna direction. The system estimates the number of antennas necessary for transmission in response to a user requirement, and determines a necessary antenna in accordance with the antenna direction in which the terminal is located, and further changes the transmission power of each antenna.

摘要翻译： 提供一种无线通信系统，其包括使用多个频带的无线通信单元和多个天线。 该系统基于来自相邻基站的每个频带的干扰沿天线方向改变每个天线的发射功率。 系统根据用户要求估计发送所需的天线数量，根据终端所在的天线方向确定必要的天线，进一步改变各天线的发送功率。

公开(公告)号：US20120140658A1

公开(公告)日：2012-06-07

申请号：US13308672

申请日：2011-12-01

申请人： Hajime KANZAKI ,  Kenzaburo Fujishima ,  Mikio Kuwahara ,  Katsuhiko Tsunehara

发明人： Hajime KANZAKI ,  Kenzaburo Fujishima ,  Mikio Kuwahara ,  Katsuhiko Tsunehara

IPC分类号： H04W52/16 ,  H04W24/00

CPC分类号： H04B17/005 ,  H04B7/0426 ,  H04B7/068 ,  H04B17/24 ,  H04B17/345

摘要： Provided is a wireless communication system which includes a wireless communication unit using plural frequency bands and plural antennas. The system changes the transmission power of each antenna, based on the interference of each of the frequency bands from the neighbor base station along the antenna direction. The system estimates the number of antennas necessary for transmission in response to a user requirement, and determines a necessary antenna in accordance with the antenna direction in which the terminal is located, and further changes the transmission power of each antenna.

摘要翻译： 提供一种无线通信系统，其包括使用多个频带的无线通信单元和多个天线。 该系统基于来自相邻基站的每个频带的干扰沿天线方向改变每个天线的发射功率。 系统根据用户要求估计发送所需的天线数量，根据终端所在的天线方向确定必要的天线，进一步改变各天线的发送功率。

公开(公告)号：US20110038249A1

公开(公告)日：2011-02-17

申请号：US12867407

申请日：2009-02-16

申请人： Satoshi Tamaki ,  Mikio Kuwahara ,  Kenzaburo Fujishima ,  Pinai Linwong ,  Katsuhiko Tsunehara

发明人： Satoshi Tamaki ,  Mikio Kuwahara ,  Kenzaburo Fujishima ,  Pinai Linwong ,  Katsuhiko Tsunehara

IPC分类号： H04W24/00 ,  H04J11/00

CPC分类号： H04L27/2675 ,  H04L27/2613 ,  H04L27/2655 ,  H04W56/00

摘要： A discontinuous change in a transmission timing in a time domain, which is caused by a transmission timing adjustment processing of an OFDMA uplink or the like, brings about a discontinuous rotation of a signal phase in a frequency domain, resulting in reduced communication quality. A wireless communication system of the present invention allows the signal phase of the frequency domain in a receiving station to be continuous before and after the timing adjustment processings by controlling a signal sequence in a transmission signal after conversion in the time domain in synchronization with the timing adjustment processing.

摘要翻译： 由OFDMA上行链路等的发送定时调整处理引起的时域中的发送定时的不连续变化导致频域中的信号相位的不连续旋转，导致通信质量降低。 本发明的无线通信系统允许接收站中的频域的信号相位在定时调整处理之前和之后是连续的，通过在与定时同步的时域中的时域中的转换之后控制发送信号中的发送信号中的信号序列 调整处理。

公开(公告)号：US20100157930A1

公开(公告)日：2010-06-24

申请号：US12717419

申请日：2010-03-04

申请人： Mikio KUWAHARA ,  Kenzaburo Fujishima ,  Masanori Taira

发明人： Mikio KUWAHARA ,  Kenzaburo Fujishima ,  Masanori Taira

IPC分类号： H04W72/12

CPC分类号： H04W72/1284 ,  H04L5/0005 ,  H04W52/0216 ,  H04W72/1231 ,  Y02D70/00

摘要： To reduce power consumption of a mobile station, this invention provides a wireless communication method for communicating between a base station and a plurality of terminals using a plurality of channels, the channels being slots obtained by dividing frequency-divided carriers by time, in which the base station allocates a set of the channels which is composed of a plurality of neighboring carriers and/or a plurality of successive slots for the each terminal, and the base station allocates at least one of the channels included in the channel sets for packet transmission the terminals.

摘要翻译： 为了降低移动台的功率消耗，本发明提供了一种用于使用多个信道在基站与多个终端之间通信的无线通信方法，所述信道是通过按时间划分分频载波而获得的时隙，其中 基站为每个终端分配由多个相邻载波和/或多个连续时隙组成的信道集合，并且基站分配包括在信道集中的信道中的至少一个用于分组传输 终端。

公开(公告)号：US20100035542A1

公开(公告)日：2010-02-11

申请号：US12484295

申请日：2009-06-15

申请人： Kenzaburo Fujishima ,  Koki Uwano

发明人： Kenzaburo Fujishima ,  Koki Uwano

IPC分类号： H04B1/60

CPC分类号： H04W16/26 ,  H04B7/1555 ,  H04J11/0069 ,  H04W16/08

摘要： Provided is a radio communication system including a plurality of base stations and a repeater apparatus, in which the repeater apparatus amplifies and transmits a radio signal received from at least one of the plurality of base stations, and controls a domain in which the radio signal is transmitted based on a traffic amount of each of the plurality of base stations. Accordingly, the number of installed base stations which are costly is reduced, and an operating rate of the respective base stations is gained along with the decrease in number of installed base stations.

摘要翻译： 提供了一种包括多个基站和中继器装置的无线电通信系统，其中中继器装置放大并发送从多个基站中的至少一个接收的无线电信号，并且控制无线电信号为 基于多个基站中的每一个的业务量来发送。 因此，成本降低的安装基站的数量减少，并且随着安装的基站的数量的减少，各基站的工作速率得到提高。

公开(公告)号：US07236879B2

公开(公告)日：2007-06-26

申请号：US10756404

申请日：2004-01-14

申请人： Katsuhiko Tsunehara ,  Kenzaburo Fujishima

发明人： Katsuhiko Tsunehara ,  Kenzaburo Fujishima

IPC分类号： G01C21/00

CPC分类号： G01S5/14 ,  G01S5/0257 ,  G01S11/06

摘要： In the present invention, even if a mobile terminal is close to a base station, the position of the mobile terminal is measured accurately. The disclosed method for calculating the position of a mobile terminal comprises: measuring the differences between the propagation distances of the signals on the channels between a plurality of base stations and the mobile terminal; determining if the mobile terminal is close to a base station; calculating the position of the mobile terminal by a common formula if it is determined that the mobile terminal is not in close proximity to any of the base stations; calculating the position of the mobile terminal in close proximity to a base station if it is determined that the mobile terminal is in close proximity to one of the base stations; and outputting the position of the mobile terminal calculated through either of the routines for calculating the mobile terminal position.

摘要翻译： 在本发明中，即使移动终端靠近基站，也能够精确地测量移动终端的位置。 所公开的用于计算移动终端的位置的方法包括：测量多个基站与移动终端之间的信道上的信号的传播距离之间的差异; 确定移动终端是否靠近基站; 如果确定移动终端不在任何基站附近，则通过公用公式计算移动终端的位置; 如果确定所述移动终端位于所述基站之一附近，则计算所述移动终端在靠近基站的位置; 并且输出通过用于计算移动终端位置的任一程序计算出的移动终端的位置。

公开(公告)号：US08787321B2

公开(公告)日：2014-07-22

申请号：US13612940

申请日：2012-09-13

申请人： Kenzaburo Fujishima ,  Masanori Taira

发明人： Kenzaburo Fujishima ,  Masanori Taira

IPC分类号： H04W4/00 ,  H04L1/00 ,  H04W72/08 ,  H04B17/02

CPC分类号： H04L1/0026 ,  H04L5/0007 ,  H04L5/0037 ,  H04W16/10 ,  H04W28/16 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1231

摘要： A method of wireless communication for communication between a base station and a plurality of terminal apparatuses, the method including: dividing an available frequency into a plurality of segments and notifying control information to the terminal apparatus, the control information including setting of a segment of the plurality of segments, communication quality of which will be fed back by the terminal apparatus, and cancellation of a segment of the plurality of segments, communication quality of which has already been fed back from the terminal apparatus; and feeding back communication quality related to a predetermined segment to the base station in accordance with the control information by the terminal apparatus.

摘要翻译： 一种无线通信方法，用于基站与多个终端装置之间的通信，所述方法包括：将可用频率划分成多个段，并向终端装置通知控制信息，所述控制信息包括： 多个段，其通信质量由终端装置反馈，以及消除多个段的段，其通信质量已从终端装置反馈; 并且根据终端装置的控制信息将与预定段相关的通信质量反馈到基站。

公开(公告)号：US20130128760A1

公开(公告)日：2013-05-23

申请号：US13812043

申请日：2011-08-08

申请人： Kenzaburo Fujishima ,  Tsuyoshi Tamaki

发明人： Kenzaburo Fujishima ,  Tsuyoshi Tamaki

IPC分类号： H04W72/04 ,  H04W24/10

CPC分类号： H04W72/04 ,  H04B7/022 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04W24/10 ,  H04W88/085

摘要： A distributed antenna system that forms a plurality of communication areas and allows a plurality of terminals to communicate simultaneously, while minimizing variability in the quality of communication among the terminals. Said distributed antenna system: provides one or more logical antenna ports to wireless front-end units provided with remote radio heads (RRHs); forms a plurality of communication areas; determines the terminals that will communicate in each communication area; controls connection between the logical antenna port(s) and the front-end units per communication area; and uses signal-processing devices associated with the logical antenna ports to perform signal processing for each terminal.

摘要翻译： 一种分布式天线系统，其形成多个通信区域并允许多个终端同时通信，同时使终端之间的通信质量的变化最小化。 所述分布式天线系统：向提供有远程无线电头（RRH）的无线前端单元提供一个或多个逻辑天线端口; 形成多个通信区域; 确定将在每个通信区域中通信的终端; 控制每个通信区域的逻辑天线端口与前端单元之间的连接; 并且使用与逻辑天线端口相关联的信号处理装置对每个终端执行信号处理。