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1. 发明专利

JP2006128790A Handover control method and control apparatus in radio terminal 审中-公开
标题翻译：无线电终端中的切换控制方法和控制装置
公开(公告)号：JP2006128790A
公开(公告)日：2006-05-18
申请号：JP2004311005
申请日：2004-10-26
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： OMURA TATSUYA , FUJIMOTO ATSUSHI
IPC分类号： H04L12/28 , H04L12/46 , H04W36/30
摘要： PROBLEM TO BE SOLVED: To solve drawbacks in a conventional technique wherein a user misses a chance of performing higher communication when handover is activated from the level of a beacon signal to be received, and regular scanning may delay the handover timing while the scanning solves the above problem.
SOLUTION: If a packet interval during communication is shorter than a usual interval, test is conducted as to whether the communication quality is satisfactory, and if it is longer than the usual interval, each access point AP is scanned at the period of about several seconds. If a result of the communication quality test shows NO, each AP is tested as to whether handover should be performed at the period of about several hundred mm/sec. If the communication quality is satisfactory and the scanning is OK, or if a result of the test is OK as to whether handover should be performed at the period of about several mm/sec, the handover is controlled to establish a link with the AP of handover destination to start communication with the AP of the handover destination.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了解决传统技术中的缺点，其中当从要接收的信标信号的级别激活切换时，用户错过了执行更高通信的机会，并且常规扫描可能延迟切换定时，同时扫描解决了上述问题。
解决方案：如果通信期间的分组间隔比通常的间隔短，则进行通信质量是否令人满意的测试，如果比通常间隔长，则每个接入点AP在约几秒钟。如果通信质量测试的结果显示为NO，则每个AP测试是否应该在几百毫米/秒的周期内进行切换。如果通信质量满意并且扫描正常，或者如果测试结果确定是否应以大约几毫米/秒的周期执行切换，则切换被控制以建立与AP的链路切换目的地开始与切换目的地的AP的通信。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006054853A Packet transmission method and device in wireless lan 审中-公开
标题翻译：无线LAN中的分组传输方法和设备
公开(公告)号：JP2006054853A
公开(公告)日：2006-02-23
申请号：JP2005184404
申请日：2005-06-24
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI
IPC分类号： H04L12/28 , H04B7/26 , H04L29/02 , H04W28/04 , H04W28/06 , H04W84/12 , H04W88/08
CPC分类号： H04L1/1671 , H04L1/1628 , H04L1/1657 , H04L1/1887 , H04W28/06 , H04W84/12 , H04W88/08
摘要： PROBLEM TO BE SOLVED: To provide a packet transmission method and device in a wireless LAN, which can increase the maximum number of simultaneous telephone conversations without deteriorating conversation quality. SOLUTION: Each wireless terminal is connected to a wireless LAN base station via a wireless LAN. From the wireless LAN base station to each wireless terminal, packets are transmitted by a frame burst packet signaling system without using ACK, and a series of header information of the packets is transmitted by a multicast signaling system as a notification packet. From each wireless terminal to the wireless LAN base station, each of individual data packets is transmitted by unicasting using ACK. Each wireless terminal requests to the wireless LAN base station retransmission of a packet which is not received among the frame packets notified by the notification packet. The wireless LAN base station retransmits the packet corresponding to the request by unicasting using ACK to the wireless terminal which has transmitted the request so as to have the terminal receive it. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供无线LAN中的分组传输方法和设备，其可以在不降低会话质量的情况下增加同时进行的电话会话的最大数量。解决方案：每个无线终端通过无线局域网连接到无线局域网基站。从无线LAN基站到每个无线终端，分组由帧突发分组信令系统发送，而不使用ACK，并且分组的一系列报头信息由组播信令系统作为通知分组发送。从每个无线终端到无线LAN基站，通过使用ACK进行单播来发送各个数据分组。每个无线终端向无线LAN基站请求在由通知分组通知的帧分组中未接收到的分组的重传。无线LAN基站通过使用ACK进行单播来对与该请求相对应的分组重发发送了请求的无线终端，以使终端接收该请求。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004260382A Inter-base station synchronizing system 审中-公开
公开(公告)号：JP2004260382A
公开(公告)日：2004-09-16
申请号：JP2003046875
申请日：2003-02-25
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI
IPC分类号： H04J3/00 , H04J3/06 , H04L7/00 , H04W56/00 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To provide an inter-base station synchronizing system which can stably perform reliable inter-base station synchronization. SOLUTION: Synchronizing circuits for controlling information transmission in accordance with the transmission frame timing generated by using self-running clocks of the base stations, which are generated at a prescribed period, are installed in a plurality of the radio base stations. When a transmission timing information signal is not transmitted in a common cable information communication path, master base station information showing that the radio base station is a master base station is included in the transmission timing information signal of the radio base station. When the transmission timing information signal is transmitted in the common wire information communication path, information is controlled to be transmitted at transmission timing positioned in a part except for transmitted transmission frame timing. Slave base station information showing that the radio base station is a slave base station is included in the transmission timing information signal of the radio base station. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2014068202A Wireless mesh network system and wireless communication device 有权
标题翻译：无线网络系统和无线通信设备
公开(公告)号：JP2014068202A
公开(公告)日：2014-04-17
申请号：JP2012212303
申请日：2012-09-26
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI , OZAWA KENJI , AKUTSU TOMOHIRO
IPC分类号： H04W40/24 , H04W76/02 , H04W84/18
摘要： PROBLEM TO BE SOLVED: To control a plurality of nodes distributed and arranged in a wide area in a short time and with high reliability even under phasing environment, in a wireless mesh network.SOLUTION: A controlling node C in a wireless mesh network system transmits a multicast generating frame including control data by multicast using each of multicasting nodes M as a destination. The multicasting nodes M transmit a multicast generating frame by multicast in which the address of the node itself is deleted from a plurality of destination addresses in the received multicast generating frame. Furthermore, a multicast frame including control data is generated and transmitted to a controlled node N by multicast. The controlled node N performs application processing on the basis of the control data of the received multicast frame. The frame including the same control data is discarded if it has already been received.
摘要翻译：要解决的问题：在无线网状网络中，在无线网状网络中，即使在相位环境下，也能够在短时间内以高可靠性控制分散布置在广域上的多个节点。解决方案：无线网状网络系统中的控制节点C 通过使用多播节点M中的每一个作为目的地的多播生成帧，包括通过多播的控制数据。多播节点M通过多播发送多播生成帧，其中节点本身的地址从接收到的多播生成帧中的多个目的地地址中删除。此外，生成包含控制数据的多播帧，并通过多播发送到受控节点N. 受控节点N根据接收到的多播帧的控制数据进行应用处理。如果已经接收到包含相同控制数据的帧，则将被丢弃。

5. 发明专利

JP2010068510A Radio communication method, radio communication system, and radio communication apparatus using multi-antenna 有权
标题翻译：无线电通信方法，无线电通信系统和使用多天线的无线电通信装置
公开(公告)号：JP2010068510A
公开(公告)日：2010-03-25
申请号：JP2009140897
申请日：2009-06-12
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI
IPC分类号： H04J99/00 , H04B7/04 , H04W16/28
CPC分类号： H04B7/086
摘要： PROBLEM TO BE SOLVED: To provide a simply configured broadband radio communication system having a service area comparable to an existing radio system. SOLUTION: Radio communication apparatuses A and B use a plurality of antennas A 1 to A M , and B 1 to B N to perform radio communication by an MIMO technology. The radio apparatuses A and B decide optimum diversity combining information for optimizing a diversity reception state through bidirectional training signal transmission. The decision is made on the basis of reception level information, baseband reception IQ information, correlation information of a diversity combining received signal and a predetermined information sequence or the like which are obtained when the diversity combining information to each antenna is sequentially changed. The optimum diversity combining information is decided by receiving training frames or symbols any number of times indicated by (the number of antennas+1). The radio communication apparatuses A and B transmit and receive data by using the diversity combining information. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有与现有无线电系统相当的服务区域的简单配置的宽带无线电通信系统。解决方案：无线电通信设备A和B使用多个天线A 1 到A M 和B 1 到B N 通过MIMO技术执行无线电通信。无线电设备A和B通过双向训练信号传输确定用于优化分集接收状态的最佳分集组合信息。基于接收电平信息，基带接收IQ信息，分集组合接收信号的相关信息以及当对每个天线的分集组合信息顺序改变时获得的预定信息序列等进行判定。通过由（天线数+1）指示的任意次数接收训练帧或符号来确定最佳分集组合信息。无线电通信装置A和B通过使用分集组合信息来发送和接收数据。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2004274537A Wireless data communication method 审中-公开
公开(公告)号：JP2004274537A
公开(公告)日：2004-09-30
申请号：JP2003064485
申请日：2003-03-11
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： UEHARA HIROMITSU , FUJIMOTO ATSUSHI
IPC分类号： H04L29/08 , H04W28/18 , H04W28/22 , H04W84/12 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To provide a wireless data communication method capable of optimizing the throughput of an entire wireless transmission system even in the case of packet data transmission in the wireless transmission system wherein a bad radio wave propagation state may exist.
SOLUTION: In the wireless data communication method, a statistic distribution of optimum transmission rates with respect to a transmission environment of a wireless channel is investigated in advance when the wireless channel is used to transmit packet data; selecting a transmission rate initial value in the transmission environment among a plurality of predetermined signal transmission rates, and the selected transmission rate initial value is decided on the basis of a result of the investigation and information with respect to a traffic volume at that point of time; and the communication propriety at a transmission rate initial value or at the selected transmission rate lower than the transmission rate initial value is judged prior to transmission of the data packet from a transmission station; and the data packet from the transmission station is transmitted at a transmission rate judged as communicable.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2004096371A Wireless transmission method and apparatus for digital information 审中-公开
公开(公告)号：JP2004096371A
公开(公告)日：2004-03-25
申请号：JP2002254143
申请日：2002-08-30
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI , UEHARA HIROMITSU
IPC分类号： H04L27/18 , H04B7/005 , H04L27/01
摘要： PROBLEM TO BE SOLVED: To provide a wireless transmission method and apparatus for digital information capable of realizing 100Mbps high speed transmission in a sufficient communication area in the SISO transmission. SOLUTION: Digital information is sampled at a 1/N interval (N is an integer of 2 or over) of a symbol period T of the digital information to extract a transmission pulse train, and the transmission method is configured such that the transmission pulse train is transmitted via a wireless transmission channel subjected to band limit wherein the transmission pulse train takes nearly the same impulse response at N sets of consecutive sampling points and takes an impulse response closer to zero more than the value of nearly the same impulse response at sampling points other than the N-sets of sampling points. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2007060640A Power saving method for multi-line wireless lan and system therefor 审中-公开
标题翻译：多线无线LAN及其系统的省电方法
公开(公告)号：JP2007060640A
公开(公告)日：2007-03-08
申请号：JP2006197676
申请日：2006-07-20
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI , FUNABASHI SAKAE , SHIOKAWA KEN
IPC分类号： H04B7/26 , H04M1/725
CPC分类号： Y02D70/00 , Y02D70/10 , Y02D70/449
摘要： PROBLEM TO BE SOLVED: To prolong a waiting time equally to that of a single-line mobile terminal since the single-line mobile terminal does not comprise a key lamp, so that a battery is not consumed thereby but current consumption of a multi-line mobile terminal at the time of traffic congestion is increased, becomes four times approximately, for example, by lighting a plurality of key lamps, and battery consumption is large, so that the waiting time is reduced to 1/4, approximately.
SOLUTION: A base power saving unit (10) is provided for exchanging, with a multi-line mobile terminal (MLP), the situation of using a plurality of telephone lines as power saving information when performing wireless communication with the multi-line mobile terminal via an access point (AP) connected to a private communication network (LAN) while accommodating a plurality of telephone lines (2) and in the multi-line mobile terminal, key lamps corresponding to the plurality of telephone lines, for displaying one idle line among the plurality of telephone lines so as to make it selectable are turned off in a non-communicating state according to the power saving information.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：由于单线移动终端不包括钥匙灯，因此等待时间等于单线移动终端的等待时间，使得电池不被消耗，因此电流消耗交通拥堵时的多行移动终端增加，例如通过点亮多个按键灯而成为四倍左右，电池消耗量大，使得等待时间大致减少到1/4。解决方案：提供一种基本功率节省单元（10），用于与多线路移动终端（MLP）交换使用多条电话线路作为省电信息的情况，当与多线路移动终端（MLP）进行无线通信时，线路移动终端经由连接到专用通信网络（LAN）的接入点（AP），同时容纳多条电话线（2），并且在多行移动终端中，与多条电话线相对应的键灯，用于显示根据省电信息，在多个电话线中使得可选择的一条空闲线路处于非通信状态。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007028233A Wireless lan system 审中-公开
标题翻译：无线局域网系统
公开(公告)号：JP2007028233A
公开(公告)日：2007-02-01
申请号：JP2005207878
申请日：2005-07-15
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI , OZAWA KENJI , KOZUKA ATSUSHI
IPC分类号： H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a wireless LAN system applicable even in the case that communication areas of wireless base stations differ from one another by taking into account the reception level of a signal transmitted from a terminal at each wireless base station, the number of connected terminals at each wireless base station, or the total amount of transmission traffic at each wireless base station. SOLUTION: When connecting or disconnecting a wireless terminal, the wireless base station informs a central control unit about terminal identification information, the terminal attribute information of the wireless terminal, or wireless terminal identification information defined correspondingly to each of the terminal attribute information items, and the central control apparatus manages the number of wireless terminals which are connected to each wireless base station, respectively, by each terminal attribute on the basis of the wireless terminal identification information. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在无线基站的通信区域通过考虑从每个无线基站的终端发送的信号的接收电平而彼此不同的情况下，也可以提供适用的无线LAN系统，每个无线基站的连接终端的数量，或者每个无线基站的传输业务的总量。解决方案：当连接或断开无线终端时，无线基站通知中央控制单元关于终端识别信息，无线终端的终端属性信息或与每个终端属性信息相对应地定义的无线终端标识信息项目，并且中央控制装置根据无线终端识别信息分别通过每个终端属性分别连接到每个无线基站的无线终端的数量。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007028231A Wireless lan system 审中-公开
标题翻译：无线局域网系统
公开(公告)号：JP2007028231A
公开(公告)日：2007-02-01
申请号：JP2005207876
申请日：2005-07-15
申请人： Iwatsu Electric Co Ltd , 岩崎通信機株式会社
发明人： FUJIMOTO ATSUSHI , OZAWA KENJI , KOZUKA ATSUSHI
IPC分类号： H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a wireless LAN system optimum to a wireless LAN employing a configuration wherein a plurality of wireless base stations are connected to one and the same network. SOLUTION: The wireless LAN system includes a central control unit which is connected to the network and controls operation of the wireless base stations, and includes a wireless terminal identification information acquisition means that acquires the notice of the connection or disconnection of a wireless terminal including wireless terminal identification information from the other wireless base stations via a network, and the central control unit includes the number of connected terminal management means that manages the number of wireless terminals connected to each wireless base station, respectively, by each terminal attribute on the basis of the wireless terminal identification information acquired by the wireless terminal identification information acquisition means. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了使无线LAN的无线LAN系统最优化，其中多个无线基站连接到同一个网络。解决方案：无线LAN系统包括连接到网络并控制无线基站的操作的中央控制单元，并且包括无线终端识别信息获取装置，其获取无线的连接或断开的通知终端包括经由网络来自其他无线基站的无线终端识别信息，并且中央控制单元包括分别通过每个终端属性来管理连接到每个无线基站的无线终端的数量的连接终端管理装置的数量由无线终端识别信息获取装置获取的无线终端识别信息的基础。版权所有（C）2007，JPO＆INPIT

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