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1.发明授权公开(公告)号：US08040854B2
公开(公告)日：2011-10-18
申请号：US11964979
申请日：2007-12-27
申请人： Koichiro Furueda , Mikio Kuwahara , Atsuhiko Sato , Ichiro Murata
发明人： Koichiro Furueda , Mikio Kuwahara , Atsuhiko Sato , Ichiro Murata
IPC分类号： H04W4/00
CPC分类号： H04L5/1469 , H04B7/0617 , H04J11/0069 , H04L5/0007 , H04L5/0016 , H04L5/0051 , H04L5/0053 , H04L25/0224 , H04L27/2656
摘要： In a wireless communication system wherein at least two communication units employ the TDD wireless communication method based on OFDMA, an OFDM wireless communication method and a wireless communication apparatus are disclosed. The first communication unit transmits a pilot signal over the whole subband zone configured of divisions of a predetermined system band. The second communication unit having a plurality of antennas estimates a propagation path of the subchannels constituting continuous frequency blocks making up a subband from the pilot signal received. The second communication unit determines the array weight used at the time of signal transmission to the first communication unit using the estimation result.
摘要翻译： 在其中至少两个通信单元采用基于OFDMA的TDD无线通信方法的无线通信系统中，公开了OFDM无线通信方法和无线通信装置。 第一通信单元通过由预定系统频带的分区构成的整个子带区域发送导频信号。 具有多个天线的第二通信单元从接收的导频信号估计构成构成子带的连续频率块的子信道的传播路径。 第二通信单元使用估计结果确定信号传输时使用的阵列权重到第一通信单元。
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2.发明申请公开(公告)号：US20080279124A1
公开(公告)日：2008-11-13
申请号：US11964979
申请日：2007-12-27
申请人： Koichiro Furueda , Mikio Kuwahara , Atsuhito Sato , Ichiro Murata
发明人： Koichiro Furueda , Mikio Kuwahara , Atsuhito Sato , Ichiro Murata
CPC分类号： H04L5/1469 , H04B7/0617 , H04J11/0069 , H04L5/0007 , H04L5/0016 , H04L5/0051 , H04L5/0053 , H04L25/0224 , H04L27/2656
摘要： In a wireless communication system wherein at least two communication units employ the TDD wireless communication method based on OFDMA, an OFDM wireless communication method and a wireless communication apparatus are disclosed. The first communication unit transmits a pilot signal over the whole subband zone configured of divisions of a predetermined system band. The second communication unit having a plurality of antennas estimates a propagation path of the subchannels constituting continuous frequency blocks making up a subband from the pilot signal received. The second communication unit determines the array weight used at the time of signal transmission to the first communication unit using the estimation result.
摘要翻译： 在其中至少两个通信单元采用基于OFDMA的TDD无线通信方法的无线通信系统中，公开了OFDM无线通信方法和无线通信装置。 第一通信单元通过由预定系统频带的分区构成的整个子带区域发送导频信号。 具有多个天线的第二通信单元从接收的导频信号估计构成构成子带的连续频率块的子信道的传播路径。 第二通信单元使用估计结果确定信号传输时使用的阵列权重到第一通信单元。
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3.发明授权Radio base station, radio communication system and interference notifying method in radio communication system 有权无线电基站，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
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。
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4.发明授权Wireless communication system and wireless communication method, and base station apparatus 失效无线通信系统和无线通信方法，以及基站装置公开(公告)号：US08483745B2
公开(公告)日：2013-07-09
申请号：US12766694
申请日：2010-04-23
申请人： Koichiro Furueda , Mikio Kuwahara
发明人： Koichiro Furueda , Mikio Kuwahara
CPC分类号： H04W36/385
摘要： The present invention pertains to the technology for avoiding interference between adjacent frequencies occurring on cell boundaries or sector boundaries in a mobile wireless communication system using an OFDMA (Orthogonal Frequency Division Multiple Access) scheme. There are a single sector mode of no collaboration between sectors; a sector selection mode of collaborating between sectors to transmit with a specified frequency resource from only one sector, and a collaboration mode of collaborating between sectors to transmit signals from both sectors. Any of the three modes is selected on the basis of measurement results of RSRP (Reference Signal Received Power) reported from a mobile station.
摘要翻译： 本发明涉及使用OFDMA（正交频分多址）方案来避免在移动无线通信系统中发生在小区边界或扇区边界上的相邻频率之间的干扰的技术。 部门之间没有合作的单一部门模式; 在扇区之间协调的扇区选择模式，用于仅从一个扇区与指定的频率资源进行传输，以及在扇区之间协作以从两个扇区发射信号的协作模式。 基于从移动台报告的RSRP（参考信号接收功率）的测量结果来选择三种模式中的任何一种。
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5.发明授权公开(公告)号：US08583153B2
公开(公告)日：2013-11-12
申请号：US13241676
申请日：2011-09-23
IPC分类号： H04B15/00
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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公开(公告)号：US08249195B2
公开(公告)日：2012-08-21
申请号：US12369065
申请日：2009-02-11
申请人： Hajime Kanzaki , Satoshi Tamaki , Koichiro Furueda
发明人： Hajime Kanzaki , Satoshi Tamaki , Koichiro Furueda
IPC分类号： H03K9/00
CPC分类号： H04B7/0619 , H04B7/0848 , H04B7/0851 , H04B7/0854 , H04L25/0204 , H04L25/0242 , H04L25/03159 , H04L2025/03414 , H04L2025/03426
摘要： A wireless communication apparatus comprising a memory for storing a group of coefficient values to be applied to processing of orthogonal modulation signals received by a plurality of antenna elements, a coefficient generation unit for detecting a phase shift value of reception timing of specific received signals on the basis of a desired signal and the coefficient values read out from the memory, compensating the group of coefficient values according to the detected phase shift value, and storing the compensated coefficient values in the memory, and a signal processing unit for processing the received signals by applying the compensated coefficient values.
摘要翻译： 一种无线通信装置，包括：存储器，用于存储要应用于由多个天线元件接收的正交调制信号的处理的一组系数值;系数生成单元，用于检测所述多个天线元件中的特定接收信号的接收定时的相移值 所需信号的基础和从存储器读出的系数值，根据检测到的相移值补偿系数值组，并将补偿后的系数值存储在存储器中;以及信号处理单元，用于通过 应用补偿系数值。
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公开(公告)号：US20090207932A1
公开(公告)日：2009-08-20
申请号：US12369065
申请日：2009-02-11
申请人： Hajime KANZAKI , Satoshi Tamaki , Koichiro Furueda
发明人： Hajime KANZAKI , Satoshi Tamaki , Koichiro Furueda
CPC分类号： H04B7/0619 , H04B7/0848 , H04B7/0851 , H04B7/0854 , H04L25/0204 , H04L25/0242 , H04L25/03159 , H04L2025/03414 , H04L2025/03426
摘要： A wireless communication apparatus comprising a memory for storing a group of coefficient values to be applied to processing of orthogonal modulation signals received by a plurality of antenna elements, a coefficient generation unit for detecting a phase shift value of reception timing of specific received signals on the basis of a desired signal and the coefficient values read out from the memory, compensating the group of coefficient values according to the detected phase shift value, and storing the compensated coefficient values in the memory, and a signal processing unit for processing the received signals by applying the compensated coefficient values.
摘要翻译： 一种无线通信装置，包括：存储器，用于存储要应用于由多个天线元件接收的正交调制信号的处理的一组系数值;系数生成单元，用于检测所述多个天线元件中的特定接收信号的接收定时的相移值 所需信号的基础和从存储器读出的系数值，根据检测到的相移值补偿系数值组，并将补偿后的系数值存储在存储器中;以及信号处理单元，用于通过 应用补偿系数值。
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