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1. 发明授权

US08560000B2 Transmit power control method for reducing cellular interference in cellular radio communication system and radio base station device for implementing the same 失效
标题翻译：用于减少蜂窝无线电通信系统和无线基站装置中的蜂窝干扰的发射功率控制方法，
公开(公告)号：US08560000B2
公开(公告)日：2013-10-15
申请号：US12986377
申请日：2011-01-07
申请人： Rintaro Katayama , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
发明人： Rintaro Katayama , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
IPC分类号： H04W52/24
CPC分类号： H04W52/143 , H04W52/241 , H04W52/245
摘要： A communication device includes pilot signal sending part and transmit power control part and holds a criterion value indicating target channel quality for mobile stations within the area covered by the base station. It creates quality data from reports from one or plural mobile stations, stores the quality data, creates a first representative value indicating average channel quality for the mobile station(s) from the stored quality data, and changes the transmit power depending on the result of comparison between the first representative value and the criterion value. It creates a second representative value indicating distribution of low channel quality from the stored quality data and updates the criterion value depending on the result of comparison between the second representative value and the criterion value.
摘要翻译：通信设备包括导频信号发送部分和发射功率控制部分，并且保持指示由基站覆盖的区域内的移动台的目标信道质量的标准值。它从一个或多个移动站的报告创建质量数据，存储质量数据，从存储的质量数据创建指示移动站的平均信道质量的第一代表值，并且根据所存储的质量数据的结果来改变发送功率第一代表值与标准值之间的比较。它从存储的质量数据创建指示低通道质量的分布的第二代表值，并且根据第二代表值与标准值之间的比较结果来更新标准值。

2. 发明申请

US20110310758A1 Method of Resource Assignment for Radio Communication System and Base Station Apparatus 审中-公开
标题翻译：无线电通信系统和基站设备的资源分配方法
公开(公告)号：US20110310758A1
公开(公告)日：2011-12-22
申请号：US13159924
申请日：2011-06-14
申请人： Satoshi Tamaki , Rintaro Katayama , Tomonori Yamamoto , Hirotake Ishii
发明人： Satoshi Tamaki , Rintaro Katayama , Tomonori Yamamoto , Hirotake Ishii
IPC分类号： H04W72/04 , H04W24/04
CPC分类号： H04W74/0808 , H04W52/143 , H04W52/243 , H04W52/247 , H04W72/0473 , H04W84/045
摘要： A method for assigning resources of a radio communication system that is aimed at relaxing interference between cells and that is applicable even in the case where femtocell base stations are installed within a macrocell base station area, and a radio base station apparatus. A transmit power limitation that limits an allocatable resource for each subband consisting of one or plural sub-carriers is decided, resource assignment is preformed on a mobile terminal on a subband-by-subband basis by a scheduler so that the transmit power limitation may be satisfied, and the transmit power limitation is altered based on an estimation result of an interference quantity from surrounding cells.
摘要翻译：用于分配无线电通信系统的资源的方法，该无线电通信系统旨在减轻小区之间的干扰并且甚至在毫微微小区基站安装在宏小区基站区域内的情况下也可应用的方法以及无线基站装置。确定限制由一个或多个子载波构成的每个子带的可分配资源的发射功率限制，通过调度器在子带逐个子带上在移动终端上执行资源分配，使得发射功率限制可以是并且基于来自周围小区的干扰量的估计结果来改变发射功率限制。

3. 发明授权

US09161277B2 Mobility control method mitigating inter cell interference and base stations which adopt the method 有权
标题翻译：采用该方法的移动性控制方法减轻小区间干扰和基站
公开(公告)号：US09161277B2
公开(公告)日：2015-10-13
申请号：US13025275
申请日：2011-02-11
申请人： Tomonori Yamamoto , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
发明人： Tomonori Yamamoto , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
IPC分类号： H04W36/00 , H04W36/20
CPC分类号： H04W36/20 , H04W36/0083
摘要： Interference applied to neighbor cells during terminal handovers can be reduced in wireless communication systems containing base stations having different cell sizes. A serving cell makes handover judgment criteria easier based on pre-acquired cell size information on its own cell and cell size information of neighbor cells in order to facilitate terminal handovers from a base station with a large cell size to a base station with a small cell size. The serving cell finds evaluation function values based on the propagation state (e.g. reference signal received power) between the terminal and target cell, and the interference and load information exchanged between the base stations, and selects the terminal for handover by comparing the evaluation function value with the handover criteria value. The system selects a target cell having a good effect in lowering interference such as a cell with large reference signal received power acquired from a terminal, to serve as the handover destination.
摘要翻译：在包含具有不同小区大小的基站的无线通信系统中，可以减少在终端切换期间应用于相邻小区的干扰。为了便于从具有大小区大小的基站到具有小小区的基站的终端切换，服务小区基于对其自己的小区的预获取小区大小信息和相邻小区的小区大小信息来更容易地进行切换判断准则尺寸。服务小区基于终端与目标小区之间的传播状态（例如，参考信号接收功率）以及基站之间交换的干扰和负载信息来找到评估函数值，并通过比较评估函数值来选择切换终端具有切换标准值。该系统选择具有从终端获取的具有大的参考信号接收功率的小区等降低干扰效果的目标小区，作为切换目的地。

4. 发明授权

US08660049B2 Wireless communication system, base station and network control apparatus 失效
标题翻译：无线通信系统，基站和网络控制装置
公开(公告)号：US08660049B2
公开(公告)日：2014-02-25
申请号：US13015810
申请日：2011-01-28
申请人： Rintaro Katayama , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii
发明人： Rintaro Katayama , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii
IPC分类号： H04H20/71 , H04J3/26
CPC分类号： H04W72/005 , H04L5/0032 , H04L5/0035 , H04L5/0051 , H04L5/0053 , H04L5/0096
摘要： In a time slot in which a first base station for performing a multicast transmission executes the multicast transmission, a second base station which does not perform the multicast transmission does not perform a unicast data transmission. The time slot in which the first base station performs the multicast transmission is notified to the second base station from a multicast control apparatus for performing scheduling of the multicast transmission to the first base station. Information to receive the multicast transmission is notified from the second base station to a terminal connected to the second base station.
摘要翻译：在用于执行多播传输的第一基站执行多播传输的时隙中，不执行多播传输的第二基站不执行单播数据传输。第一基站执行组播发送的时隙从用于向第一基站进行组播传输的调度的组播控制装置通知给第二基站。从第二基站向连接到第二基站的终端通知接收组播传输的信息。

5. 发明授权

US08463272B2 Wireless communication system and load balancing aware handover method therefor 有权
标题翻译：无线通信系统及其负载平衡感知切换方法
公开(公告)号：US08463272B2
公开(公告)日：2013-06-11
申请号：US12985469
申请日：2011-01-06
申请人： Tomonori Yamamoto , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
发明人： Tomonori Yamamoto , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
IPC分类号： H04W36/00
CPC分类号： H04W36/22 , H04W36/04
摘要： An object of the invention is to provide a wireless communication system in which the load of each cell and interference between cells are taken into account. In a handover-candidate base station and a handover-source base station, parameters for interference-reducing scheduling and handover facilitating processing are adjusted based on the mutual load information. When the handover-candidate base station, to be used for load balancing, is a large-diameter cell, transmit power control and frequency scheduling are adjusted by taking account of the load state at a cell edge. When the handover-source base station has a small-diameter cell, the number of terminals to be handed over is adjusted by taking account of the load state of the handover-candidate base station. Thus, both of interference control and load balancing are achieved.
摘要翻译：本发明的目的是提供一种无线通信系统，其中考虑每个小区的负载和小区之间的干扰。在切换候选基站和切换源基站中，基于相互负载信息来调整用于减少干扰的调度和切换促进处理的参数。当用于负载均衡的切换候选基站是大直径小区时，通过考虑小区边缘处的负载状态来调整发射功率控制和频率调度。当切换源基站具有小直径小区时，通过考虑切换候选基站的负载状态来调整要切换的终端的数量。因此，实现了干扰控制和负载均衡。

6. 发明授权

US08462718B2 Resource assignment method and communication apparatus for wireless communication system 失效
标题翻译：无线通信系统的资源分配方法和通信装置
公开(公告)号：US08462718B2
公开(公告)日：2013-06-11
申请号：US12788509
申请日：2010-05-27
申请人： Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii , Tomonori Yamamoto
发明人： Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii , Tomonori Yamamoto
IPC分类号： H04W4/00
CPC分类号： H04W52/42 , H04W48/08 , H04W72/0453 , H04W92/20
摘要： Resources are assigned in units of resource blocks each composed of one or more subcarriers, inter-cell interference adjustment control information is notified to each other among base stations, a transmit power limitation on each of the resource blocks in a cell is decided based on the inter-cell interference adjustment control information; and the decision of the transmit power limitation is changed sequentially beginning at a resource block having a transmit power limitation different from the transmit power limitation on an adjacent resource block.
摘要翻译：资源以每个由一个或多个子载波组成的资源块为单位进行分配，小区间干扰调整控制信息在基站之间通知彼此，小区中的每个资源块的发射功率限制基于小区间干扰调整控制信息; 并且从具有与相邻资源块上的发射功率限制不同的发射功率限制的资源块开始依次改变发射功率限制的决定。

7. 发明申请

US20110244866A1 WIRELESS COMMUNICATION SYSTEM AND LOAD BALANCING AWARE HANDOVER METHOD THEREFOR 有权
标题翻译：无线通信系统和负载均衡转换方法
公开(公告)号：US20110244866A1
公开(公告)日：2011-10-06
申请号：US12985469
申请日：2011-01-06
申请人： Tomonori YAMAMOTO , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
发明人： Tomonori YAMAMOTO , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
IPC分类号： H04W36/24
CPC分类号： H04W36/22 , H04W36/04
摘要： An object of the invention is to provide a wireless communication system in which the load of each cell and interference between cells are taken into account. In a handover-candidate base station and a handover-source base station, parameters for interference-reducing scheduling and handover facilitating processing are adjusted based on the mutual load information. When the handover-candidate base station, to be used for load balancing, is a large-diameter cell, transmit power control and frequency scheduling are adjusted by taking account of the load state at a cell edge. When the handover-source base station has a small-diameter cell, the number of terminals to be handed over is adjusted by taking account of the load state of the handover-candidate base station. Thus, both of interference control and load balancing are achieved.
摘要翻译：本发明的目的是提供一种无线通信系统，其中考虑每个小区的负载和小区之间的干扰。在切换候选基站和切换源基站中，基于相互负载信息来调整用于减少干扰的调度和切换促进处理的参数。当用于负载均衡的切换候选基站是大直径小区时，通过考虑小区边缘处的负载状态来调整发射功率控制和频率调度。当切换源基站具有小直径小区时，通过考虑切换候选基站的负载状态来调整要切换的终端的数量。因此，实现了干扰控制和负载均衡。

8. 发明申请

US20110212744A1 TRANSMIT POWER CONTROL METHOD FOR RADIO COMMUNICATION SYSTEM AND RADIO BASE STATION DEVICE 失效
标题翻译：用于无线电通信系统和无线电基站的发射功率控制方法
公开(公告)号：US20110212744A1
公开(公告)日：2011-09-01
申请号：US12986377
申请日：2011-01-07
申请人： Rintaro KATAYAMA , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
发明人： Rintaro KATAYAMA , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
IPC分类号： H04W52/06
CPC分类号： H04W52/143 , H04W52/241 , H04W52/245
摘要： A communication device includes pilot signal sending part and transmit power control part and holds a criterion value indicating target channel quality for mobile stations within the area covered by the base station. It creates quality data from reports from one or plural mobile stations, stores the quality data, creates a first representative value indicating average channel quality for the mobile station(s) from the stored quality data, and changes the transmit power depending on the result of comparison between the first representative value and the criterion value. It creates a second representative value indicating distribution of low channel quality from the stored quality data and updates the criterion value depending on the result of comparison between the second representative value and the criterion value.
摘要翻译：通信设备包括导频信号发送部分和发射功率控制部分，并且保持指示由基站覆盖的区域内的移动台的目标信道质量的标准值。它从一个或多个移动站的报告创建质量数据，存储质量数据，从存储的质量数据创建指示移动站的平均信道质量的第一代表值，并且根据所存储的质量数据的结果来改变发送功率第一代表值与标准值之间的比较。它从存储的质量数据创建指示低通道质量的分布的第二代表值，并且根据第二代表值与标准值之间的比较结果来更新标准值。

9. 发明申请

US20110211560A1 MOBILITY CONTROL METHOD MITIGATING INTER CELL INTERFERENCE AND BASE STATIONS WHICH ADOPT THE METHOD 有权
标题翻译：移动能力控制方法减轻干扰和基站的干扰
公开(公告)号：US20110211560A1
公开(公告)日：2011-09-01
申请号：US13025275
申请日：2011-02-11
申请人： Tomonori YAMAMOTO , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
发明人： Tomonori YAMAMOTO , Satoshi Tamaki , Rintaro Katayama , Hirotake Ishii
IPC分类号： H04W36/00
CPC分类号： H04W36/20 , H04W36/0083
摘要： Interference applied to neighbor cells during terminal handovers can be reduced in wireless communication systems containing base stations having different cell sizes. A serving cell makes handover judgment criteria easier based on pre-acquired cell size information on its own cell and cell size information of neighbor cells in order to facilitate terminal handovers from a base station with a large cell size to a base station with a small cell size. The serving cell finds evaluation function values based on the propagation state (e.g. reference signal received power) between the terminal and target cell, and the interference and load information exchanged between the base stations, and selects the terminal for handover by comparing the evaluation function value with the handover criteria value. The system selects a target cell having a good effect in lowering interference such as a cell with large reference signal received power acquired from a terminal, to serve as the handover destination.
摘要翻译：在包含具有不同小区大小的基站的无线通信系统中，可以减少在终端切换期间应用于相邻小区的干扰。为了便于从具有大小区大小的基站到具有小小区的基站的终端切换，服务小区基于对其自己的小区的预获取的小区大小信息和相邻小区的小区大小信息来更容易地进行切换判断标准尺寸。服务小区基于终端与目标小区之间的传播状态（例如，参考信号接收功率）以及基站之间交换的干扰和负载信息来找到评估函数值，并通过比较评估函数值来选择切换终端具有切换标准值。该系统选择具有从终端获取的具有大的参考信号接收功率的小区等降低干扰效果的目标小区，作为切换目的地。

10. 发明申请

US20110211519A1 WIRELESS COMMUNICATION SYSTEM, BASE STATION AND NETWORK CONTROL APPARATUS 失效
标题翻译：无线通信系统，基站和网络控制设备
公开(公告)号：US20110211519A1
公开(公告)日：2011-09-01
申请号：US13015810
申请日：2011-01-28
申请人： Rintaro KATAYAMA , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii
发明人： Rintaro KATAYAMA , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii
IPC分类号： H04H20/71
CPC分类号： H04W72/005 , H04L5/0032 , H04L5/0035 , H04L5/0051 , H04L5/0053 , H04L5/0096
摘要： In a time slot in which a first base station for performing a multicast transmission executes the multicast transmission, a second base station which does not perform the multicast transmission does not perform a unicast data transmission. The time slot in which the first base station performs the multicast transmission is notified to the second base station from a multicast control apparatus for performing scheduling of the multicast transmission to the first base station. Information to receive the multicast transmission is notified from the second base station to a terminal connected to the second base station.
摘要翻译：在用于执行多播传输的第一基站执行多播传输的时隙中，不执行多播传输的第二基站不执行单播数据传输。第一基站执行组播发送的时隙从用于向第一基站进行组播传输的调度的组播控制装置通知给第二基站。从第二基站向连接到第二基站的终端通知接收组播传输的信息。

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