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1. 发明授权

US08891390B2 Wireless base station for controlling antenna transmission power 有权
标题翻译：用于控制天线发射功率的无线基站
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。

2. 发明申请

US20120140658A1 WIRELESS BASE STATION FOR CONTROLLING ANTENNA TRANSMISSION POWER 有权
标题翻译：无线基站控制天线传输功率
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。

3. 发明授权

US08862167B2 Radio base station, radio communication system and interference notifying method in radio communication system 有权
标题翻译：无线电基站，无线电通信系统和无线电通信系统中的干扰通知方法
公开(公告)号：US08862167B2
公开(公告)日：2014-10-14
申请号：US13238556
申请日：2011-09-21
申请人： Tsukasa Sasayama , Mikio Kuwahara , Koichiro Furueda , Hajime Kanzaki
发明人： Tsukasa Sasayama , Mikio Kuwahara , Koichiro Furueda , Hajime Kanzaki
IPC分类号： H04B15/00
CPC分类号： H04W24/10
摘要： A radio communication system is provided in which, based on a measurement condition and neighbor information specified by a base station to which a mobile terminal is connected, the mobile terminal measures the reception quality of the neighboring base stations included in the neighbor information and, when a transmission request is received from the connected base station, transmits the measurement result to the connected base station. In this radio communication system, the base station transmits neighbor information, which specifies the base stations for which interference measurement is to be performed, and a measurement result transmission request to the mobile terminal at a predetermined time for measuring the interference of neighboring base stations and, in response to it, the mobile terminal transmits the measurement result of the base stations, specified by the base station for measuring the interference, to the base station.
摘要翻译：提供了一种无线电通信系统，其中，基于由连接有移动终端的基站指定的测量条件和相邻信息，移动终端测量包括在邻居信息中的相邻基站的接收质量，以及何时从所连接的基站接收到发送请求，将测量结果发送给所连接的基站。在该无线通信系统中，基站在预定时间向移动终端发送指定要进行干扰测量的基站的相邻信息和测量结果发送请求，以测量相邻基站的干扰，响应于此，移动终端向基站发送由用于测量干扰的基站指定的基站的测量结果。

4. 发明授权

US08619690B2 Cellular radio communication system, radio base station apparatus and radio terminal unit 失效
标题翻译：蜂窝无线电通信系统，无线基站装置和无线终端单元
公开(公告)号：US08619690B2
公开(公告)日：2013-12-31
申请号：US12961707
申请日：2010-12-07
申请人： Mikio Kuwahara , Hajime Kanzaki , Kenichi Azuma
发明人： Mikio Kuwahara , Hajime Kanzaki , Kenichi Azuma
IPC分类号： H04W72/04
CPC分类号： H04L5/0037 , H04B7/0413 , H04B7/0617 , H04L5/0007 , H04L5/0023 , H04L5/0062 , H04W72/00 , H04W88/08
摘要： In a cellular radio communication system including of multi-antenna base stations, to make effective use of the reduced interference in supposing the use of beam form and avoid the interference in an adjacent station even if a space multiplex and the beam form are mixed. Frequencies intended for the cell edge in an FFR are classified into frequencies for space multiplex and a frequency for beam form. Thereby, a frequency at which the interference is reduced by the beam form is fixed. A frequency intended for the cell center is in a frequency band and signals are transmitted from three base stations.
摘要翻译：在包括多天线基站的蜂窝无线电通信系统中，即使混合了空间复用和波束形式，为了有效地利用波束形式的使用中的减少的干扰，也避免了相邻站中的干扰。用于FFR中的小区边缘的频率被分为用于空间复用的频率和波束形式的频率。因此，固定了通过波束形式减小干扰的频率。用于小区中心的频率在频带中，并且信号从三个基站发送。

5. 发明申请

US20130003669A1 TRANSMISSION POWER ADJUSTMENT METHOD IN WIRELESS COMMUNICATION SYSTEM AND BASE STATION 有权
标题翻译：无线通信系统和基站的传输功率调整方法
公开(公告)号：US20130003669A1
公开(公告)日：2013-01-03
申请号：US13494374
申请日：2012-06-12
申请人： Tatsunori Ohara , Mikio Kuwahara , Hajime Kanzaki , Tsukasa Sasayama
发明人： Tatsunori Ohara , Mikio Kuwahara , Hajime Kanzaki , Tsukasa Sasayama
IPC分类号： H04W52/22
CPC分类号： H04W52/283 , H04W52/146 , H04W52/346 , H04W52/367 , H04W52/44 , H04W72/0453 , H04W72/121
摘要： Necessary transmission power of terminals is secured while suppressing total transmission power in base station, so that FFR technology is realized with high frequency utilization efficiency to thereby realize both of compactness of base station and increase of communication capacity. Frequency resource is divided into frequency for boundary area of cell and frequency for central area of cell. Transmission power per unit frequency is fixed in the frequency for boundary area of cell and is set to be variable in the frequency for central area of cell. Transmission power per unit frequency is adjusted so as to satisfy necessary power of terminals connected to frequency for central area of cell. When it is judged that total transmission power of base station exceeds prescribed value, terminal is moved from central area to boundary area of cell, so that total transmission power is suppressed to be equal to or smaller than standard.
摘要翻译：确保终端的必要传输功率，同时抑制基站中的总发射功率，从而实现高频率利用效率的FFR技术，从而实现基站的紧凑性和通信能力的提高。频率资源划分为细胞边界区域和细胞中心区域的频率。单位频率的发射功率固定在小区边界区域的频率上，并且设置为在小区中心区域的频率可变。调整单位频率的发送功率，以满足与小区中心区域连接的频率的终端的必要功率。当判断基站的总发射功率超过规定值时，终端从小区的中心区域移动到边界区域，从而将总发射功率抑制在标准以下。

6. 发明授权

US08515483B2 Wireless communication system and method, and base station apparatus 失效
标题翻译：无线通信系统及方法，以及基站装置
公开(公告)号：US08515483B2
公开(公告)日：2013-08-20
申请号：US13021030
申请日：2011-02-04
申请人： Mikio Kuwahara , Hajime Kanzaki
发明人： Mikio Kuwahara , Hajime Kanzaki
IPC分类号： H04B7/24
CPC分类号： H04W16/30 , Y02D70/122 , Y02D70/1262 , Y02D70/1264 , Y02D70/23
摘要： In a conventional cellular wireless communication system that included a plurality of base station apparatuses having a plurality of antennas, just two antennas were used for simultaneous transmission by transmission diversity, and the antenna usage efficiency was low. According to the present invention, a free transmission diversity antenna for transmission to the edge of a cell is used to send a signal to a terminal located around the center of the cell without causing interference to a terminal located around the edge of the cell. The two terminals located around the edge of the cell and around the center of the cell are paired for simultaneous signal transmission. A signal directed to the edge of the cell and a signal directed to the center of the cell are sent with greatly different transmission power. This reduces the interference caused by the signal directed to the center of the cell to an insignificant level for the terminal located around the edge of the cell. The terminal located around the edge of the cell does not appear to be affected by interference from signal transmission to the center of the cell and does not have to always use four antennas.
摘要翻译：在包括具有多个天线的多个基站装置的现有的蜂窝无线通信系统中，仅通过发送分集使用两个天线同时进行发送，天线使用效率低。根据本发明，用于传输到小区边缘的自由传输分集天线被用于向位于小区中心的终端发送信号，而不会对位于小区边缘的终端造成干扰。位于电池边缘周围的两个端子和电池的中心周围配对用于同时进行信号传输。针对小区边缘的信号和指向小区中心的信号以大大不同的发射功率发送。这样就可以减少引导到小区中心的信号对位于小区边缘周围的终端的无关紧要的干扰。位于小区边缘周围的终端似乎不受来自信号传输到小区中心的干扰的影响，并且不必总是使用四个天线。

7. 发明申请

US20110223962A1 WIRELESS COMMUNICATION SYSTEM AND METHOD, AND BASE STATION APPARATUS 失效
标题翻译：无线通信系统与方法及基站装置
公开(公告)号：US20110223962A1
公开(公告)日：2011-09-15
申请号：US13021030
申请日：2011-02-04
申请人： Mikio Kuwahara , Hajime Kanzaki
发明人： Mikio Kuwahara , Hajime Kanzaki
IPC分类号： H04B7/24
CPC分类号： H04W16/30 , Y02D70/122 , Y02D70/1262 , Y02D70/1264 , Y02D70/23
摘要： In a conventional cellular wireless communication system that included a plurality of base station apparatuses having a plurality of antennas, just two antennas were used for simultaneous transmission by transmission diversity, and the antenna usage efficiency was low. According to the present invention, a free transmission diversity antenna for transmission to the edge of a cell is used to send a signal to a terminal located around the center of the cell without causing interference to a terminal located around the edge of the cell. The two terminals located around the edge of the cell and around the center of the cell are paired for simultaneous signal transmission. A signal directed to the edge of the cell and a signal directed to the center of the cell are sent with greatly different transmission power. This reduces the interference caused by the signal directed to the center of the cell to an insignificant level for the terminal located around the edge of the cell. The terminal located around the edge of the cell does not appear to be affected by interference from signal transmission to the center of the cell and does not have to always use four antennas.
摘要翻译：在包括具有多个天线的多个基站装置的现有的蜂窝无线通信系统中，仅通过发送分集使用两个天线同时进行发送，天线使用效率低。根据本发明，用于传输到小区边缘的自由传输分集天线被用于向位于小区中心的终端发送信号，而不会对位于小区边缘的终端造成干扰。位于电池边缘周围的两个端子和电池的中心周围配对用于同时进行信号传输。针对小区边缘的信号和指向小区中心的信号以大大不同的发射功率发送。这样就可以减少引导到小区中心的信号对位于小区边缘周围的终端的无关紧要的干扰。位于小区边缘周围的终端似乎不受来自信号传输到小区中心的干扰的影响，并且不必总是使用四个天线。

8. 发明授权

US08886248B2 Transmission power adjustment method in wireless communication system and base station 有权
标题翻译：无线通信系统和基站中的发射功率调整方法
公开(公告)号：US08886248B2
公开(公告)日：2014-11-11
申请号：US13494374
申请日：2012-06-12
申请人： Tatsunori Ohara , Mikio Kuwahara , Hajime Kanzaki , Tsukasa Sasayama
发明人： Tatsunori Ohara , Mikio Kuwahara , Hajime Kanzaki , Tsukasa Sasayama
IPC分类号： H04B7/00 , H04W52/34 , H04W52/44 , H04W52/28 , H04W72/04 , H04W52/14 , H04W72/12 , H04W52/36
CPC分类号： H04W52/283 , H04W52/146 , H04W52/346 , H04W52/367 , H04W52/44 , H04W72/0453 , H04W72/121
摘要： Necessary transmission power of terminals is secured while suppressing total transmission power in base station, so that FFR technology is realized with high frequency utilization efficiency to thereby realize both of compactness of base station and increase of communication capacity. Frequency resource is divided into frequency for boundary area of cell and frequency for central area of cell. Transmission power per unit frequency is fixed in the frequency for boundary area of cell and is set to be variable in the frequency for central area of cell. Transmission power per unit frequency is adjusted so as to satisfy necessary power of terminals connected to frequency for central area of cell. When it is judged that total transmission power of base station exceeds prescribed value, terminal is moved from central area to boundary area of cell, so that total transmission power is suppressed to be equal to or smaller than standard.
摘要翻译：确保终端的必要传输功率，同时抑制基站中的总发射功率，从而实现高频率利用效率的FFR技术，从而实现基站的紧凑性和通信能力的提高。频率资源划分为细胞边界区域和细胞中心区域的频率。单位频率的发射功率固定在小区边界区域的频率上，并且设置为在小区中心区域的频率可变。调整单位频率的发送功率，以满足与小区中心区域连接的频率的终端的必要功率。当判断基站的总发射功率超过规定值时，终端从小区的中心区域移动到边界区域，从而将总发射功率抑制在标准以下。

9. 发明申请

US20140256331A1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD AND BASE STATION DEVICE 审中-公开
标题翻译：无线通信系统和无线通信方法和基站设备
公开(公告)号：US20140256331A1
公开(公告)日：2014-09-11
申请号：US14241661
申请日：2012-08-16
申请人： Hiroto Adachi , Mikio Kuwahara , Hajime Kanzaki
发明人： Hiroto Adachi , Mikio Kuwahara , Hajime Kanzaki
IPC分类号： H04W16/06 , H04L5/00 , H04W88/08
CPC分类号： H04W16/06 , H04J11/003 , H04L5/0073 , H04W16/10 , H04W88/08
摘要： Information is exchanged among multiple base stations by adaptively changing an allocation of radio resource of each base station, and reducing deterioration in a signal quality that is caused by interference of signals transmitted from multiple base stations. Communication with a terminal located in a cell center and communication with a terminal located in a cell edge are performed in different time zones. In addition, communication is performed such that time zones do not overlap in the cell edge between multiple neighbor base station devices. In addition, efficiency that is an index representing the number of bits transmittable per resource element is calculated using a scanning result of a terminal, and one base station that decides a radio resource allocation between cells decides radio resources to be allocated to a terminal located in a cell center and radio resources to be allocated to the cell edge using the efficiency information.
摘要翻译：通过自适应地改变每个基站的无线电资源的分配，并且减少由多个基站发送的信号的干扰引起的信号质量的恶化，在多个基站之间交换信息。与位于小区中心的终端进行通信，并与位于小区边缘的终端进行通信，在不同的时区进行。此外，执行通信，使得时区在多个相邻基站设备之间的小区边缘中不重叠。此外，使用终端的扫描结果来计算作为表示每个资源元素可发送的比特数的索引的效率，并且决定小区之间的无线资源分配的一个基站决定要分配给位于使用效率信息分配给小区边缘的小区中心和无线资源。

10. 发明授权

US08583153B2 Radio communication system, radio communication method and base station 有权
标题翻译：无线电通信系统，无线电通信方式和基站
公开(公告)号：US08583153B2
公开(公告)日：2013-11-12
申请号：US13241676
申请日：2011-09-23
申请人： Koichiro Furueda , Tsukasa Sasayama , Mikio Kuwahara , Hajime Kanzaki
发明人： Koichiro Furueda , Tsukasa Sasayama , Mikio Kuwahara , Hajime Kanzaki
IPC分类号： H04B15/00
CPC分类号： H04W72/02 , H04W28/16 , H04W88/08 , H04W92/20
摘要： When DFFR is performed in a heterogeneous environment in which a pico base station coexists in the area of a macro base station and when the pico base station judges that, based on the received-signal quality report result from a mobile terminal, the macro base station causes interference to the pico base station, the pico base station reports an interference power threshold to be notified to the macro base station based on the transmission power setting value of the macro base station, the transmission power setting value of the pico base station, and the estimated interference amount calculated from the scan report result. The macro base station transmits a result of comparison between the transmission powers of multiple frequency resources and the interference power threshold, to the pico base station and the pico base station selects a frequency resource, unlikely to be affected by interference.
摘要翻译：当DFFR在微微基站共存在宏基站的区域的异构环境中执行时，并且当微微基站判断为基于来自移动终端的接收信号质量报告结果时，宏基站微微基站对微微基站造成干扰，微微基站根据宏基站的发射功率设定值，微微基站的发射功率设定值和微微基站的发射功率设定值，报告要通知给宏基站的干扰功率阈值，从扫描报告结果计算的估计干扰量。宏基站将多频率资源的发送功率和干扰功率阈值之间的比较结果发送给微微基站，微微基站选择不太可能受干扰影响的频率资源。

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