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1. 发明授权

EP2285178B1 COGNITIVE WIRELESS SYSTEM, COGNITIVE WIRELESS DEVICE, AND WIRELESS SIGNAL DETECTION METHOD 有权
标题翻译：认知无线系统，认知无线设备和无线信号检测方法
公开(公告)号：EP2285178B1
公开(公告)日：2018-04-18
申请号：EP09754834.1
申请日：2009-05-25
申请人： NEC Corporation
发明人： MURAOKA, Kazushi , ARIYOSHI, Masayuki
IPC分类号： H04W88/02 , H04J11/00 , H04W16/14 , H04L27/00
CPC分类号： H04W16/14 , H04L27/0006 , H04W88/02
摘要： A radio system includes: a memory which stores a system parameter and a pseudo parameter, the system parameter being used for generation of a feature value specific to a search target radio system, the pseudo parameter being similar to the system parameter; a feature value generator which generates one or a plurality of the feature values based on a signal in a received frequency band by using the system parameter; a non-feature value generator which generates one or a plurality of non-feature values based on the signal in the received frequency band by using the pseudo parameter; and a determination section which determines whether or not a signal of the search target radio system exists by using the one or the plurality of the feature values and the one or the plurality of non-feature values.

2. 发明授权

EP3324695B1 TERMINAL, BASE STATION AND METHOD FOR D2D COMMUNICATIONS 有权
公开(公告)号：EP3324695B1
公开(公告)日：2020-09-09
申请号：EP16824016.6
申请日：2016-05-16
申请人： NEC Corporation
发明人： MURAOKA, Kazushi , SUGAHARA, Hiroto
IPC分类号： H04W72/04 , H04W28/06 , H04W92/18

3. 发明公开

EP3496473A1 BASE STATION, WIRELESS COMMUNICATION SYSTEM, BASE STATION CONTROL METHOD, WIRELESS COMMUNICATION METHOD, AND BASE STATION CONTROL PROGRAM 审中-公开
公开(公告)号：EP3496473A1
公开(公告)日：2019-06-12
申请号：EP18210697.1
申请日：2009-09-15
申请人： NEC Corporation
发明人： NAKAMURA, Toshifumi , HAMABE, Kojiro , ARIYOSHI, Masayuki , MURAOKA, Kazushi
IPC分类号： H04W52/34 , H04W36/08 , H04W52/02
摘要： [Problems] Because it is not possible to reduce sufficiently the number of base stations that starts uselessly in spite of being in low traffic state, it is not possible to lower interference between adjacent cells and power consumption sufficiently.
[Measures] A base station starts transmission of a control signal with predetermined power when communication between other base station and a mobile station is started and a first predetermined condition is satisfied.

4. 发明授权

EP2343933B1 BASE STATION, RADIO COMMUNICATION SYSTEM, BASE STATION CONTROL METHOD, RADIO COMMUNICATION METHOD, AND CONTROL PROGRAM 有权
标题翻译：基站，无线通信系统中，基站控制方法，无线通信方法和控制方案
公开(公告)号：EP2343933B1
公开(公告)日：2016-06-15
申请号：EP09823434.7
申请日：2009-09-15
申请人： NEC Corporation
发明人： NAKAMURA, Toshifumi , HAMABE, Kojiro , ARIYOSHI, Masayuki , MURAOKA, Kazushi
IPC分类号： H04W52/32 , H04W52/14 , H04W52/24 , H04W72/04 , H04W72/08
CPC分类号： H04W72/082 , H04B2201/70702 , H04B2201/709709 , H04W52/143 , H04W52/243 , H04W52/244 , H04W52/325 , H04W72/0406 , H04W72/0473

5. 发明公开

EP2343933A1 BASE STATION, RADIO COMMUNICATION SYSTEM, BASE STATION CONTROL METHOD, RADIO COMMUNICATION METHOD, AND CONTROL PROGRAM 有权
标题翻译：基础设施，自动化系统，基础设施，基础设施
公开(公告)号：EP2343933A1
公开(公告)日：2011-07-13
申请号：EP09823434.7
申请日：2009-09-15
申请人： NEC Corporation
发明人： NAKAMURA, Toshifumi , HAMABE, Kojiro , ARIYOSHI, Masayuki , MURAOKA, Kazushi
IPC分类号： H04W52/34 , H04B1/04 , H04J13/00 , H04W52/02 , H04W52/32
CPC分类号： H04W72/082 , H04B2201/70702 , H04B2201/709709 , H04W52/143 , H04W52/243 , H04W52/244 , H04W52/325 , H04W72/0406 , H04W72/0473
摘要： [Problems] Because it is not possible to reduce sufficiently the number of base stations that starts uselessly in spite of being in light traffic state, it is not possible to lower interference between adjacent cells and power consumption sufficiently.
[Measures] A base station receives a transmission signal from a mobile station to other base station, and starts transmission of a control signal with predetermined power depending on a reception condition of the transmission signal.
摘要翻译： [问题]由于尽管处于轻的交通状态，不可能充分地减少启动无用的基站的数量，但是不可能降低相邻小区之间的干扰和功耗。 [措施]基站从移动台接收到其他基站的发送信号，并根据发送信号的接收状况开始以规定的功率发送控制信号。

6. 发明授权

EP3094126B1 RADIO TERMINAL, RADIO STATION AND METHODS 有权
公开(公告)号：EP3094126B1
公开(公告)日：2019-09-11
申请号：EP16172589.0
申请日：2013-01-11
申请人： NEC Corporation
发明人： FUTAKI, Hisashi , AMINAKA, Hiroaki , SUGAHARA, Hiroto , KAKURA, Yoshikazu , MURAOKA, Kazushi
IPC分类号： H04W16/14 , H04W88/02 , H04W24/08 , H04W24/10 , H04W72/04 , H04W88/06 , H04W88/10 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/382

7. 发明授权

EP2237632B1 WIRELESS DEVICE, WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR DETECTING RADIO WAVE 有权
公开(公告)号：EP2237632B1
公开(公告)日：2019-01-23
申请号：EP08866751.4
申请日：2008-12-12
申请人： NEC Corporation , The University of Electro-Communications
发明人： MURAOKA, Kazushi , ARIYOSHI, Masayuki , FUJII, Takeo
IPC分类号： H04W72/02 , H04W16/14

8. 发明公开

EP2843856A1 WIRELESS TERMINAL, WIRELESS STATION, WIRELESS COMMUNICATION SYSTEM, AND METHOD IMPLEMENTED IN SAME 有权
标题翻译：无线终端，无线电台，无线通信系统以及相同的方法
公开(公告)号：EP2843856A1
公开(公告)日：2015-03-04
申请号：EP13782054.4
申请日：2013-01-11
申请人： NEC Corporation
发明人： FUTAKI, Hisashi , AMINAKA, Hiroaki , SUGAHARA, Hiroto , KAKURA, Yoshikazu , MURAOKA, Kazushi
IPC分类号： H04B17/00 , H04W16/14 , H04W88/02
CPC分类号： H04W24/08 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/382 , H04L5/0048 , H04W16/14 , H04W24/10 , H04W72/0453 , H04W72/085 , H04W76/27 , H04W88/02 , H04W88/06 , H04W88/10
摘要： In one embodiment, a radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100). This embodiment therefore contributes to simplification of a measurement function which should be supported by the radio terminal when the radio communication system uses a shared frequency (e.g., TVWS) shared by the plurality of radio systems.
摘要翻译：在一个实施例中，无线电终端（2）用于无线电通信系统（100）中并与无线电台（1）通信。无线电终端（2）包括测量单元（20）。测量单元（20）用于使用用于执行与应用于无线电通信系统（100）的无线电接入技术对应的第一终端测量的终端测量过程来执行由多个无线电装置共享的共享频率的第二终端测量包括无线电通信系统（100）的系统。因此，该实施例有助于简化当无线电通信系统使用由多个无线电系统共享的共享频率（例如，TVWS）时无线电终端应该支持的测量功能。

9. 发明公开

EP2237632A1 WIRELESS DEVICE, WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR DETECTING RADIO WAVE 审中-公开
标题翻译：无线设备中，检测无线电波的无线通信系统和方法
公开(公告)号：EP2237632A1
公开(公告)日：2010-10-06
申请号：EP08866751.4
申请日：2008-12-12
申请人： NEC Corporation , The University of Electro-Communications
发明人： MURAOKA, Kazushi , ARIYOSHI, Masayuki , FUJII, Takeo
IPC分类号： H04W72/08
CPC分类号： H04W72/02 , H04W16/14 , H04W24/02
摘要： Provided is a radio communication system including a plurality of cognitive radio apparatuses each including at least: transmission/reception means; and detection means for detecting a radio wave transmitted from a radio apparatus of another radio communication system, in which the radio communication system further includes a control section for determining a frequency band on which each cognitive radio apparatus of a radio apparatus group including the plurality of cognitive radio apparatuses is to detect the radio wave.

10. 发明公开

EP2228932A1 RADIO COMMUNICATION METHOD, RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION PROGRAM, AND RADIO COMMUNICATION SYSTEM 审中-公开
标题翻译： FUNKKOMMUNIKATIONSVERFAHREN，FUNKKOMMUNIKATIONSVORRICHTUNG，FUNKKOMMUNIKATIONSPROGRAMM UND FUNKKOMMUNIKATIONSSYSTEM
公开(公告)号：EP2228932A1
公开(公告)日：2010-09-15
申请号：EP08868266.1
申请日：2008-12-12
申请人： NEC Corporation , The University of Electro-Communications
发明人： ARIYOSHI, Masayuki , MURAOKA, Kazushi , FUJII, Takeo , OHTA, Mai
IPC分类号： H04J11/00 , H04J1/00
摘要： In cooperative sensing in which a plurality of cognitive radio apparatus collaboratively exchange sensing information on a status of frequency band usage as a secondary system, the sensing information is efficiently exchanged in the secondary system without influencing communication of the primary system. In a radio communication system according to this invention, a first radio communication device includes means for observing a surrounding radio communication environment, means for converting information obtained by the observation into a parameter used for radio communication, and means for performing transmission by using the parameter, and a second radio communication device includes means for receiving a signal transmitted from the first radio communication device and means for extracting, from the received signal, information on the surrounding radio communication environment that is observed on a transmission side.
摘要翻译：在其中多个认知无线电设备协作地将频带使用状态的感测信息作为次要系统交换的协作感测中，在次要系统中有效地交换感测信息，而不影响主系统的通信。在根据本发明的无线电通信系统中，第一无线电通信装置包括用于观察周围的无线电通信环境的装置，用于将通过观察获得的信息转换为用于无线电通信的参数的装置，以及通过使用参数进行发送的装置第二无线电通信装置包括用于接收从第一无线电通信装置发送的信号的装置，以及用于从接收信号中提取关于在发送侧观察到的周围无线电通信环境的信息的装置。

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