公开(公告)号：US20140057668A1

公开(公告)日：2014-02-27

申请号：US14074019

申请日：2013-11-07

申请人： Ryota Kimura ,  Ryo Sawai ,  Yuichi Morioka

发明人： Ryota Kimura ,  Ryo Sawai ,  Yuichi Morioka

IPC分类号： H04W88/06

CPC分类号： H04W72/0453 ,  H04B7/0408 ,  H04B7/0684 ,  H04B7/26 ,  H04W72/1257 ,  H04W88/06

摘要： A wireless communication apparatus includes: a first wireless communication section performing wireless communication on the basis of a first communication mode; a second wireless communication section performing wireless communication on the basis of a second communication mode using a different frequency band from the first communication mode; a beam learning signal generation section generating a beam learning signal for specifying a beam pattern at the time of the communication based on the second communication mode and transmitting the beam learning signal from the second wireless communication section; a response information acquisition section acquiring response information responding to the transmitted beam learning signal; and a preliminary information generation section generating preliminary information so as not to cause interference among a plurality of wireless communications using the second communication mode on the basis of the response information and transmitting the preliminary information from the first wireless communication section.

摘要翻译： 无线通信装置包括：第一无线通信部，其基于第一通信模式进行无线通信; 第二无线通信部分，基于使用与所述第一通信模式不同的频带的第二通信模式来执行无线通信; 波束学习信号生成部，其基于第二通信模式生成用于指定通信时的波束图案的波束学习信号，并从第二无线通信部发送波束学习信号; 响应信息获取部分获取响应于所发送的波束学习信号的响应信息; 以及初步信息生成部，其基于所述响应信息生成初步信息，以便不会在使用所述第二通信模式的多个无线通信中产生干扰，并且从所述第一无线通信部发送所述初步信息。

公开(公告)号：US08588829B2

公开(公告)日：2013-11-19

申请号：US13587312

申请日：2012-08-16

申请人： Ryo Sawai

发明人： Ryo Sawai

IPC分类号： H04B7/01

CPC分类号： H04W52/243 ,  H04W16/14 ,  H04W52/143 ,  H04W52/16 ,  H04W52/24 ,  H04W52/242 ,  H04W52/34 ,  H04W52/46 ,  H04W64/00

摘要： There is provided a method for controlling a transmission power in a second communication service making secondary usage of a spectrum assigned to a first communication service, with use of any node of one or more secondary usage node that transmits a radio signal of the second communication service, comprising the steps of: acquiring an acceptable interference power allocated to the second communication service; calculating a total sum of interference power levels on the first communication service based on transmission powers respectively required for the one or more secondary usage node; and excluding any secondary usage node of the one or more secondary usage node from allocation of the transmission power when the calculated total sum of interference power levels is larger than the acceptable interference power.

公开(公告)号：US08572212B2

公开(公告)日：2013-10-29

申请号：US12686740

申请日：2010-01-13

申请人： Ryo Sawai

发明人： Ryo Sawai

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： H04W16/14 ,  H04L41/32 ,  H04L67/30 ,  H04W24/08

摘要： There is provided a communication device comprising: a detection unit that detects presence or absence of communication connection with a server storing data related to a communication environment of a communication area where a first communication service is provided; a data acquisition unit that acquires data related to a surrounding communication environment; and a determination unit that determines availability of usage of a second communication service using a part or whole of a spectrum assigned to the first communication service based on the data acquired by the data acquisition unit, wherein when communication connection with the server is not detected by the detection unit, the data acquisition unit senses a communication environment surrounding the communication device or receives data related to a communication environment from another communication device located near the communication device.

公开(公告)号：US08447861B2

公开(公告)日：2013-05-21

申请号：US12784939

申请日：2010-05-21

申请人： Ryo Sawai ,  Ryota Kimura

发明人： Ryo Sawai ,  Ryota Kimura

IPC分类号： G06F15/173

CPC分类号： H04W16/14

摘要： There is provided a communication device including: a data acquisition unit that acquires sensed data related to a signal receiving condition in a spectrum assigned to a first communication service; a determination unit that determines which of a first area inside a service area of the first communication service where a signal receiving condition is suitable, a second area inside or in a peripheral part of the service area where a signal receiving condition is not suitable and a third area outside the peripheral part of the service area the communication device is located based on the sensed data acquired by the data acquisition unit; and a secondary usage starting unit that starts usage of a second communication service using a part or whole of the spectrum assigned to the first communication service by a procedure different depending on a kind of the area where the communication device is located determined by the determination unit.

摘要翻译： 提供一种通信装置，包括：数据获取单元，其获取与分配给第一通信服务的频谱中的信号接收条件相关的感测数据; 确定单元，其确定信号接收条件适合的第一通信服务的服务区域内的第一区域，信号接收条件不合适的服务区域的周边部分内的第二区域，以及 基于由数据获取单元获取的感测数据，通信设备所在的服务区域的周边部分之外的第三区域; 以及次要使用开始单元，其使用根据由所述确定单元确定的所述通信设备所在的区域的种类而不同的过程，使用分配给所述第一通信服务的频谱的一部分或全部的第二通信服务的使用 。

公开(公告)号：US20120315936A1

公开(公告)日：2012-12-13

申请号：US13580986

申请日：2011-03-15

申请人： Ryo Sawai ,  Ryota Kimura

发明人： Ryo Sawai ,  Ryota Kimura

IPC分类号： H04B15/00 ,  H04W4/00

CPC分类号： H04W52/343 ,  H04W16/10 ,  H04W52/243 ,  H04W52/245

摘要： A management server in a network including a first transmitting device that communicates with a first receiving device and a second transmitting device that communicates with a second receiving device. The management server includes a network interface that receives a parameter corresponding to a level of improvement of communication quality at the second receiving device, and a processor that calculates an allowable interference amount at the first receiving device based on the parameter.

摘要翻译： 一种网络中的管理服务器，包括与第一接收设备通信的第一发送设备和与第二接收设备进行通信的第二发送设备。 管理服务器包括：网络接口，其接收与第二接收装置的通信质量的提高水平相对应的参数;以及处理器，其基于该参数来计算第一接收装置的容许干扰量。

公开(公告)号：US08265684B2

公开(公告)日：2012-09-11

申请号：US12840831

申请日：2010-07-21

申请人： Ryo Sawai

发明人： Ryo Sawai

IPC分类号： H04W52/04

CPC分类号： H04W52/243 ,  H04W16/14 ,  H04W52/143 ,  H04W52/16 ,  H04W52/24 ,  H04W52/242 ,  H04W52/34 ,  H04W52/46 ,  H04W64/00

摘要： There is provided a method for controlling a transmission power in a second communication service making secondary usage of a spectrum assigned to a first communication service, with use of any node of one or more secondary usage node that transmits a radio signal of the second communication service, comprising the steps of: acquiring an acceptable interference power allocated to the second communication service; calculating a total sum of interference power levels on the first communication service based on transmission powers respectively required for the one or more secondary usage node; and excluding any secondary usage node of the one or more secondary usage node from allocation of the transmission power when the calculated total sum of interference power levels is larger than the acceptable interference power.

摘要翻译： 提供了一种用于控制第二通信服务中的发送功率的方法，其使用分配给第一通信服务的频谱的二次使用，使用发送第二通信服务的无线电信号的一个或多个次要使用节点的任何节点 包括以下步骤：获取分配给所述第二通信服务的可接受的干扰功率; 基于所述一个或多个次要使用节点所需的发送功率，计算所述第一通信服务上的干扰功率电平的总和; 并且当所计算的干扰功率电平的总和大于可接受的干扰功率时，从所述发送功率的分配中排除所述一个或多个次要使用节点的任何二次使用节点。

公开(公告)号：US20120182930A1

公开(公告)日：2012-07-19

申请号：US13496499

申请日：2010-08-16

申请人： Ryo Sawai

发明人： Ryo Sawai

IPC分类号： H04B7/14 ,  H04W40/00

CPC分类号： H04B3/36 ,  H04B7/026 ,  H04B7/14 ,  H04B7/155 ,  H04B7/15535 ,  H04B7/2606 ,  H04B17/336 ,  H04J11/00 ,  H04L5/0035 ,  H04L5/0051 ,  H04L5/006 ,  H04W40/12 ,  H04W84/047 ,  H04W88/02 ,  H04W88/08

摘要： Provided is a communication system including a plurality of base stations, a plurality of communication terminals that communicates with one of the plurality of base stations, and a relay device, the relay device including a selection unit that selects a communication terminal to be relayed from among the plurality of communication terminals on the basis of communication quality information received from each of the plurality of communication terminals, and a relay unit that relays communication between the communication terminal selected by the selection unit and the corresponding base station.

摘要翻译： 提供了一种通信系统，包括：多个基站，与多个基站中的一个通信的多个通信终端;以及中继装置，所述中继装置包括选择单元，所述选择单元从 所述多个通信终端基于从所述多个通信终端中的每一个接收的通信质量信息，以及中继单元，其中继由所述选择单元选择的所述通信终端与所述对应的基站之间的通信。

公开(公告)号：US20120170508A1

公开(公告)日：2012-07-05

申请号：US13394824

申请日：2010-07-27

申请人： Ryo Sawai

发明人： Ryo Sawai

IPC分类号： H04W72/04 ,  H04B7/14

CPC分类号： H04B7/2606 ,  H04B7/155 ,  H04W28/26 ,  H04W72/0406 ,  H04W84/047 ,  H04W88/02 ,  H04W88/08

摘要： A relay node in a mobile communication network for relaying communications between a base station and a mobile terminal. The relay node includes a communication interface that receives resource allocation information from the base station, the resource allocation information indicating a controllable range of communication resources available to the relay node. The relay node also includes a control unit that controls allocation of resources for communication between the relay node and the mobile station based on the received resource allocation information. The relay node then communicates with the mobile terminal based on the control performed by the control unit.

摘要翻译： 用于中继基站和移动终端之间的通信的移动通信网络中的中继节点。 中继节点包括从基站接收资源分配信息的通信接口，资源分配信息指示中继节点可用的通信资源的可控范围。 中继节点还包括控制单元，其基于接收到的资源分配信息来控制用于中继节点和移动站之间的通信的资源分配。 然后，中继节点基于由控制单元执行的控制与移动终端进行通信。

公开(公告)号：US20110039495A1

公开(公告)日：2011-02-17

申请号：US12849210

申请日：2010-08-03

申请人： Ryo Sawai ,  Ryota Kimura

发明人： Ryo Sawai ,  Ryota Kimura

IPC分类号： H04B17/00

CPC分类号： H04W52/16 ,  H04W52/325 ,  H04W52/50

摘要： There is provided a method of controlling communication of a second communication service making secondary usage of a spectrum assigned to a first communication service, with use of a communication device, including the steps of: receiving a radio signal transmitted for the first communication service in a first period on a time axis; determining a parameter value to be used for controlling communication of the second communication service based on the radio signal received in the first period; sensing a radio signal transmitted for the second communication service in a second period subsequent to the first period; and transmitting a beacon for the second communication service based on the parameter value in a third period subsequent to the second period when a radio signal for the second communication service is not detected in the second period.

摘要翻译： 提供了一种控制第二通信服务的通信的方法，其使用通信设备对分配给第一通信服务的频谱进行二次使用，包括以下步骤：接收以第一通信服务发送的无线电信号 时间轴上的第一个时期; 基于在所述第一周期中接收到的无线电信号，确定要用于控制所述第二通信服务的通信的参数值; 在所述第一周期之后的第二周期中感测为所述第二通信服务发送的无线电信号; 以及当在所述第二周期中没有检测到用于所述第二通信服务的无线电信号时，在所述第二周期之后的第三周期中，基于所述参数值，发送所述第二通信服务的信标。

公开(公告)号：US20050243942A1

公开(公告)日：2005-11-03

申请号：US11108664

申请日：2005-04-19

申请人： Ryo Sawai

发明人： Ryo Sawai

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04B7/26 ,  H04L1/00 ,  H04L1/02

CPC分类号： H04L1/0003 ,  H04L1/0002 ,  H04L1/0017 ,  H04L1/0687

摘要： In order to transmit a large amount of data in series at a time with a MIMO communication scheme while avoiding deterioration of decoding characteristics due to change over time by a channel matrix, a wireless communication system uses an open-loop type and a closed-loop type of MIMO communication modes in combination and switches to the open-loop MIMO communication mode in response to the information that the amount of data to be transmitted at a time has exceeded a predetermined amount of bits or a predetermined transmission time during data transmission under the closed-loop MIMO communication mode. By discontinuing useless closed-loop MIMO communication and switching to the open-loop MIMO communication mode that is better than Zero-forcing, the decoding characteristics are prevented from simply becoming deteriorated.

摘要翻译： 为了在MIMO通信方式的同时串联发送大量的数据，同时避免由于信道矩阵而随时间的变化导致的解码特性的恶化，无线通信系统使用开环类型和闭环 类型的MIMO通信模式组合并且响应于在一段时间内要发送的数据量已经超过预定量的位或在数据传输期间的预定传输时间的信息而切换到开环MIMO通信模式 闭环MIMO通信模式。 通过停止无用的闭环MIMO通信并切换到比零强制更好的开环MIMO通信模式，防止解码特性变得简单。