公开(公告)号：US09320042B2

公开(公告)日：2016-04-19

申请号：US13639779

申请日：2010-04-09

申请人： Go Ono ,  Kenzaburo Fujishima ,  Mikio Kuwahara

发明人： Go Ono ,  Kenzaburo Fujishima ,  Mikio Kuwahara

IPC分类号： H04H20/71 ,  H04W72/08 ,  H04B7/02 ,  H04B7/04 ,  H04L5/00 ,  H04B17/309 ,  H04B17/382 ,  H04W92/20

CPC分类号： H04W72/08 ,  H04B7/024 ,  H04B7/0434 ,  H04B17/309 ,  H04B17/382 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/0098 ,  H04W92/20

摘要： The present invention is directed to achievement of a data transmission control to cause base stations to cooperate with one another, taking into account efficient use of radio resources. A wireless communication system, which is an aspect of the present invention, includes: a first base station; a second base station connected via a wired network; and a wireless communication terminal that conducts at least one of single data transmission in which a single base station transmits data and cooperative data transmission in which a plurality of base stations cooperate to transmit data. The base stations notify the wireless communication terminal of a condition indicating a case where the cooperative data transmission can be performed. If the communication quality of the propagation path meets the condition, the wireless communication terminal transmits, to the base stations, information that is required for the cooperative data transmission.

摘要翻译： 本发明旨在实现数据传输控制，以使基站彼此协作，同时考虑到无线电资源的有效利用。 作为本发明的一个方面的无线通信系统包括：第一基站; 经由有线网络连接的第二基站; 以及无线通信终端，其进行单个基站发送数据的单个数据传输和协作数据传输中的至少一个，其中多个基站协作发送数据。 基站向无线通信终端通知表示能够进行协同数据发送的情况的条件。 如果传播路径的通信质量满足条件，则无线通信终端向基站发送协作数据传输所需的信息。

公开(公告)号：US08787146B2

公开(公告)日：2014-07-22

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

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：US08744456B2

公开(公告)日：2014-06-03

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： H04J15/00

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：US08675588B2

公开(公告)日：2014-03-18

申请号：US13380721

申请日：2009-08-14

申请人： Kenzaburo Fujishima ,  Toshiyuki Saito ,  Yuta Muto ,  Kouki Uwano

发明人： Kenzaburo Fujishima ,  Toshiyuki Saito ,  Yuta Muto ,  Kouki Uwano

IPC分类号： H04W4/00

CPC分类号： H04W72/085 ,  H04B7/15592 ,  H04W84/047

摘要： In a wireless communication system, when data communication is performed between a relay device and a terminal (in a second path), the same amount of data is required to be transferred between a base station and the relay device (in a third path). An amount of wireless communication resources required is obtained by adding an amount inversely proportional to a capacity of each of the second and third wireless transmission-paths. Therefore, the amount inversely proportional to the capacity of the third path is consumed in excess. Based on a channel quality of a first wireless channel between the base station and the terminal, a channel quality of a second wireless channel between the terminal and the relay station, and a channel quality of a third wireless channel between the base station and the relay station, it is determined whether data communication between the base station and the terminal is relayed.

摘要翻译： 在无线通信系统中，当在中继装置与终端（第二路径）之间进行数据通信时，需要在基站与中继装置（第3路径）之间传送相同数量的数据。 通过添加与第二和第三无线传输路径中的每一个的容量成反比的量来获得所需的无线通信资源量。 因此，与第三路径的容量成反比的量被消耗。 基于基站和终端之间的第一无线信道的信道质量，终端和中继站之间的第二无线信道的信道质量以及基站和中继站之间的第三无线信道的信道质量 确定基站和终端之间的数据通信是否被中继。

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：US08340018B2

公开(公告)日：2012-12-25

申请号：US12295917

申请日：2006-04-06

申请人： Kenzaburo Fujishima ,  Masanori Taira

发明人： Kenzaburo Fujishima ,  Masanori Taira

IPC分类号： H04W4/00

CPC分类号： H04W24/00 ,  H04B7/0617 ,  H04B7/0697 ,  H04W16/28 ,  H04W72/1231

摘要： A wireless communication system comprises radio base station apparatuses each of which transmits an estimation pilot in advance for estimating the quality of a downlink communication after a spatial signal processing performed after a time unified among the radio base station apparatuses; and radio terminal apparatuses each of which receives the estimation pilot to determine the quality of the downlink communication, thereby reporting the determined downlink communication quality to the radio base station apparatus via an uplink channel. The estimation pilot is transmitted at the same time and frequency established among the radio base station apparatuses by use of the same directivity beam as used for transmitting the data after the unified time.

摘要翻译： 无线通信系统包括无线基站装置，各无线基站装置在无线基站装置的统一后进行的空间信号处理后，预先发送估计导频来估计下行通信的质量; 以及无线终端装置，其各自接收到所述估计导频以确定下行链路通信的质量，从而经由上行链路信道向所述无线基站装置报告所确定的下行链路通信质量。 通过使用与统一时间之后的数据发送相同的方向性波束，在无线基站装置之间建立的同一时间和频率发送估计导频。

公开(公告)号：US08290001B2

公开(公告)日：2012-10-16

申请号：US12279750

申请日：2006-12-14

申请人： Kenzaburo Fujishima ,  Masanori Taira

发明人： Kenzaburo Fujishima ,  Masanori Taira

IPC分类号： H04B3/10

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

摘要： Arrangements for assigning a frequency resource for a wireless communication system. Included are: dividing a frequency available into a plurality of segments and assigning another terminal apparatus to communicate with each segment, wherein, with regard to a first specified number of segments, assigning via the base station apparatus, based on a number of communication times anticipated per each terminal apparatus and a probability of exceeding a communication capacity decided by a threshold value per each terminal apparatus, a second specified number of segments that is smaller than the first to each terminal apparatus, and notifying the terminal apparatuses of the assignment result, referring to the assignment result via the terminal apparatus, and carrying out scheduling via the base station apparatus to decide which terminal apparatus to communicate with per each segment based on the radio channel quality fed back from the each terminal apparatus.

摘要翻译： 为无线通信系统分配频率资源的安排。 包括：将可用的频率划分成多个段，并分配另一个终端装置以与每个段进行通信，其中，关于第一指定数量的段，基于预期的通信次数，经由基站装置分配 并且每个终端装置具有超过由阈值决定的通信容量的概率，小于第一到每个终端装置的第二规定数量的段，并且向终端装置通知分配结果，参考 通过终端装置进行分配结果，并且经由基站装置进行调度，基于从每个终端装置反馈的无线信道质量，决定哪个终端装置与每个分段进行通信。

公开(公告)号：US20110287798A1

公开(公告)日：2011-11-24

申请号：US13146663

申请日：2009-01-30

申请人： Go Ono ,  Kenzaburo Fujishima ,  May Takada ,  Koki Uwano

发明人： Go Ono ,  Kenzaburo Fujishima ,  May Takada ,  Koki Uwano

IPC分类号： H04W72/04 ,  H04W92/00

CPC分类号： H04W72/0426 ,  H04B7/024 ,  H04B7/0413 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0057 ,  H04W28/0236 ,  H04W40/06 ,  H04W72/1236 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16

摘要： It is provided a wireless communication system comprising base stations that transmit data to a terminal with cooperation by the base stations. The terminal communicates with the base stations. The terminal periodically transmits, to one of the base stations, information necessary for data transmission from a single base station out of the base stations. Each of the base stations determines whether the terminal needs data transmission through a cooperation among the base stations, and transmits a cooperation information transmission instruction to the terminal, which includes information necessary to execute the data transmission in order to cooperate among the base stations in the case where it is determined that the terminal needs the data transmission through the cooperation among the base stations. The terminal transmits the cooperation information to the base stations in a case of receiving the cooperation information transmission instruction.

摘要翻译： 提供了一种无线通信系统，其包括基站，其通过基站的协作向终端发送数据。 终端与基站进行通信。 终端周期性地向基站之一发送从基站中的单个基站进行数据传输所需的信息。 每个基站确定终端是否需要通过基站之间的协作进行数据传输，并且向终端发送协作信息传输指令，其包括执行数据传输所必需的信息，以便在基站中进行协作 确定终端需要通过基站之间的协作进行数据传输的情况。 在接收合作信息发送指示的情况下，终端向基站发送合作信息。

公开(公告)号：US07627298B2

公开(公告)日：2009-12-01

申请号：US11677134

申请日：2007-02-21

申请人： Masanori Taira ,  Kenzaburo Fujishima ,  Koki Uwano

发明人： Masanori Taira ,  Kenzaburo Fujishima ,  Koki Uwano

IPC分类号： H04B17/00

CPC分类号： H04B7/024 ,  H04W16/24 ,  H04W16/28

摘要： A terminal 211 measures pilot signals transmitted in directional (beam) patterns from an adjacent cell and an own cell, and estimates reception qualities with the presence (high)/absence (low) of the interference from the adjacent cell. The terminal 211 requests data rate request values (DRC1, DRC2) corresponding to the reception qualities with the presence/absence of the interference to the base station 201. The base station 201 shares beam direction schedule with an adjacent cell base station, and confirms the presence/absence of interference to the terminal 211 for each slot. In accordance with the presence/absence of the interference, the base station 201 selects a suitable one of the two values of the data rates requested from the terminal 211, and modulates the data and transmits it.

摘要翻译： 终端211测量来自相邻小区和自身小区的定向（波束）模式发送的导频信号，并且利用来自相邻小区的干扰的存在（高）/不存在（低）来估计接收质量。 终端211向基站201请求与接收质量相对应的数据速率请求值（DRC1，DRC2）。基站201与相邻小区基站共享波束方向调度，并且确认 每个插槽对端子211的存在/不存在干扰。 根据干扰的存在/不存在，基站201选择从终端211请求的数据速率的两个值中适当的一个值，并且调制该数据并进行发送。

公开(公告)号：US07599660B2

公开(公告)日：2009-10-06

申请号：US11196294

申请日：2005-08-04

申请人： Kenzaburo Fujishima

发明人： Kenzaburo Fujishima

IPC分类号： H04B7/14

CPC分类号： H04W88/08 ,  H04W72/04

摘要： A base station apparatus is provided for adaptively controlling a maximal accommodation channel number per unit area (for example, the coverage area of a cell or sector) in accordance with a traffic quantity without relying upon detachment of a mobile base station and installation of a repeater. Upon inputting of a plurality of baseband signals of a user channel-multiplexed channel group, linear coupling is performed by a weight which is different per area that outputs it, thereby enabling control of the channel density. Additionally, a per-group available channel number is constantly monitored to control the weight while using threshold judgment for the available channel number as a trigger, thus achieving situation-sensitive prompt handleability.

摘要翻译： 提供了一种基站装置，用于根据业务量自适应地控制每单位面积的最大住宿信道数（例如，小区或扇区的覆盖面积），而不依赖于移动基站的分离和中继器的安装 。 在输入用户信道多路复用信道组的多个基带信号时，通过输出它的每个区域不同的权重执行线性耦合，从而能够控制信道密度。 此外，不断地监视每组可用频道号，以便在将可用频道号作为触发使用阈值判断的同时控制权重，从而实现对情感敏感的即时可处理性。