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公开(公告)号：US20130235771A1
公开(公告)日：2013-09-12
申请号：US13766854
申请日：2013-02-14
IPC分类号： H04W74/08
CPC分类号： H04W74/08 , H04W16/14 , H04W84/047
摘要： A network management unit included in a base station of WRAN, and a heterogeneous-systems coexistence function unit included in a relay station perform communications by taking advantage of the wireless line of WRAN. In this way, the network management unit and the heterogeneous-systems coexistence function unit make the determination and management of a frequency channel to be utilized by WLAN. Concretely, the QP (Quiet Period) of WRAN and that of WLAN are synchronized with each other with respect to the above-described frequency channel. During the synchronized QPs, WRAN and WLAN make the absence confirmation of a primary user.
摘要翻译： 包括在WRAN的基站中的网络管理单元以及包含在中继站中的异构系统共存功能单元利用WRAN的无线线路进行通信。 以这种方式，网络管理单元和异构系统共存功能单元使得WLAN使用的频道的确定和管理。 具体地说，WRAN和WLAN的QP（Quiet Period）相对于上述频率信道彼此同步。 在同步的QP期间，WRAN和WLAN使得主用户不再需要确认。
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公开(公告)号：US20210192183A1
公开(公告)日：2021-06-24
申请号：US17265911
申请日：2018-09-11
发明人： Keigo HASEGAWA , Hiroto SASAO
摘要： The cloud server holds the main database for storing all the registration data that is handled in the present system, and the edge server that is arranged close to the sensor holds a sub-database for storing part of the registration data. The sub-database in the edge server stores only the registration data having a high probability of being verified in the edge server. In the case where the edge server verifies the detection data that has been acquired by the sensor with the registration data within the sub-database and determines that the registration data that matches the detection data does not exist within the sub-database, the configuration allows the detection data to be transmitted to the cloud server and requests the detection data to be verified with the registration data within the main database.
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公开(公告)号：US20160277938A1
公开(公告)日：2016-09-22
申请号：US15035655
申请日：2014-11-13
发明人： Keigo HASEGAWA , Masayuki TAKEKAWA
CPC分类号： H04W16/14 , H04W72/0406 , H04W84/22 , H04W92/20
摘要： To establish a wireless link with a terminal station without interfering with a primary user of a frequency, in a system and method in which a base station accesses a management apparatus for managing the frequency available for wireless communication via the wireless link with the terminal station.
摘要翻译： 为了与终端站建立无线链路而不干扰频率的主要用户，在基站访问用于管理可用于与终端站的无线链路进行无线通信的频率的管理装置的系统和方法中。
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公开(公告)号：US20160227418A1
公开(公告)日：2016-08-04
申请号：US15021395
申请日：2014-09-10
CPC分类号： H04W16/14 , H04W48/16 , H04W72/082
摘要： Disclosed is a wireless communication system using white spaces and a base station that does not have its own backhaul, starts wireless communications without radiating radio waves of frequencies causing interference with primary users. A BS being in isolation starts a wireless communication with a CPE, connected to the internet, so as to access a database to acquire a list of frequencies available for transmission. The BS uses a predetermined frequency to perform the wireless communication with the CPE, and acquires, via this wireless communication, the list of frequencies available for transmission. Thereafter, the BS performs wireless communications with the CPE and with another CPE on the basis of the acquired list of frequencies available for transmission. The BS can hold, in advance, information of the predetermined frequency for which it has been estimated that the BS will cause no interference with the wireless communications of the primary users.
摘要翻译： 公开了一种使用空白的无线通信系统和不具有自己的回程的基站，在不发射导致与主用户干扰的频率的无线电波的情况下开始无线通信。 隔离的BS开始与连接到互联网的CPE的无线通信，以便访问数据库以获取可用于传输的频率列表。 BS使用预定频率来执行与CPE的无线通信，并且经由该无线通信获取可用于传输的频率列表。 此后，基于所获取的可用于传输的频率列表，BS与CPE和另一个CPE进行无线通信。 BS可以预先保存已经估计出BS将不会干扰主用户的无线通信的预定频率的信息。
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公开(公告)号：US20160007358A1
公开(公告)日：2016-01-07
申请号：US14768560
申请日：2014-01-16
CPC分类号： H04W72/0473 , H04W4/023 , H04W16/14 , H04W52/146 , H04W52/244 , H04W64/003 , H04W64/006 , H04W72/0406 , H04W72/048
摘要： In the wireless communication system, each of a base station 11 and a terminal station 12 obtains its location information, and upon establishment of synchronization, the terminal station 12 transmits a terminal station free channel list and its location information by extremely low power wireless communication, and the base station 11 compares a base station free channel list created based on information from a database 40 with the terminal station free channel list from the terminal station 12, and determines, when there is a common free channel, the free channel as uplink/downlink channels and determines, when there is no common free channel, an uplink channel and a downlink channel as different channels, calculates a base station-terminal station distance from the location information of the base station 11 and the location information of the terminal station 12, and determines terminal station's uplink transmission power based on the distance.
摘要翻译： 在无线通信系统中，基站11和终端站12中的每一个获得其位置信息，并且在同步建立时，终端站12通过极低功率无线通信发送终端站自由频道列表及其位置信息， 并且基站11将基于来自数据库40的信息创建的基站自由频道列表与来自终端站12的终端站自由频道列表进行比较，并且当存在公共空闲频道时，确定空闲频道作为上行链路/ 下行链路信道，并且当没有公共空闲信道时，确定作为不同信道的上行链路信道和下行链路信道，从基站11的位置信息和终端站12的位置信息计算基站终端站距离 并根据距离确定终端的上行传输功率。
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公开(公告)号：US20150311970A1
公开(公告)日：2015-10-29
申请号：US14647181
申请日：2013-11-19
发明人： Keat Beng TOH , Masayuki TAKEKAWA , Keigo HASEGAWA
摘要： A wireless communication terminal includes: an array antenna; a MAC processing section, provided to detect a first order system, that interprets information on a quiet period that the base station has informed of the MAC processing section in advance and generates a quiet period signal; a synthesizing section that weights signals received by antennas of the array antenna by using weighting coefficients, and combines the signals to produce a synthetic signal; and an array antenna control section that optimizes the weighting coefficients so as to reduce an interference signal received from the array antenna, over a period of presence of the quiet period signal. The optimized weighting coefficients are applied while downstream signals from the base station are being received, but are not applied while the primary usage system is being detected.
摘要翻译： 无线通信终端包括：阵列天线; MAC处理部分，被提供以检测第一系统，其在基于已经通知所述MAC处理部分的安静时段上解释信息，并且产生安静周期信号; 合成部，其通过使用加权系数来对所述阵列天线的天线进行接收的信号进行加权，并且合成所述信号以产生合成信号; 以及阵列天线控制部分，其在安静周期信号的存在期间优化加权系数，以便减少从阵列天线接收的干扰信号。 应用优化的加权系数，同时正在接收来自基站的下行信号，但是在检测到主要使用系统时不应用。
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