专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明申请

US20080279124A1 OFDM WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION APPARATUS 有权
标题翻译： OFDM无线通信方法和无线通信设备
公开(公告)号：US20080279124A1
公开(公告)日：2008-11-13
申请号：US11964979
申请日：2007-12-27
申请人： Koichiro Furueda , Mikio Kuwahara , Atsuhito Sato , Ichiro Murata
发明人： Koichiro Furueda , Mikio Kuwahara , Atsuhito Sato , Ichiro Murata
IPC分类号： H04J11/00 , H04L5/14
CPC分类号： H04L5/1469 , H04B7/0617 , H04J11/0069 , H04L5/0007 , H04L5/0016 , H04L5/0051 , H04L5/0053 , H04L25/0224 , H04L27/2656
摘要： In a wireless communication system wherein at least two communication units employ the TDD wireless communication method based on OFDMA, an OFDM wireless communication method and a wireless communication apparatus are disclosed. The first communication unit transmits a pilot signal over the whole subband zone configured of divisions of a predetermined system band. The second communication unit having a plurality of antennas estimates a propagation path of the subchannels constituting continuous frequency blocks making up a subband from the pilot signal received. The second communication unit determines the array weight used at the time of signal transmission to the first communication unit using the estimation result.
摘要翻译：在其中至少两个通信单元采用基于OFDMA的TDD无线通信方法的无线通信系统中，公开了OFDM无线通信方法和无线通信装置。第一通信单元通过由预定系统频带的分区构成的整个子带区域发送导频信号。具有多个天线的第二通信单元从接收的导频信号估计构成构成子带的连续频率块的子信道的传播路径。第二通信单元使用估计结果确定信号传输时使用的阵列权重到第一通信单元。

92. 发明申请

US20080008135A1 Communication Control Method, Wireless Communication System, And Wireless Communication Device 有权
标题翻译：通信控制方法，无线通信系统和无线通信设备
公开(公告)号：US20080008135A1
公开(公告)日：2008-01-10
申请号：US11794125
申请日：2004-12-28
申请人： Toshiyuki Saito , Seishi Hanaoka , Takashi Yano , Satoshi Tamaki , Mikio Kuwahara
发明人： Toshiyuki Saito , Seishi Hanaoka , Takashi Yano , Satoshi Tamaki , Mikio Kuwahara
IPC分类号： H04B7/216
CPC分类号： H04L1/1887 , H04L1/0026 , H04L1/04 , H04L1/1607 , H04L1/189 , H04L5/0005 , H04L5/0037 , H04L2001/0093
摘要： There are provided scheduling and a resend control system, which match simultaneous communications using a plurality of carriers. For individual carriers to be used, the simultaneous resend control of the carriers is made by notifying channel information and a data decoding result and by managing the resend numbers. Even in case the communications are performed by using the carriers simultaneously between a base station and a terminal, the scheduling can be done to contain the resend control. It is also possible to improve the communication quality and the throughput.
摘要翻译：提供调度和再发送控制系统，其与使用多个载波的同时通信相匹配。对于要使用的单个载波，通过通知信道信息和数据解码结果并通过管理重发数来进行载波的同时重发控制。即使在基站和终端之间同时使用载波进行通信的情况下，也可以进行调度以包含再发送控制。还可以提高通信质量和吞吐量。

93. 发明申请

US20060217158A1 Wireless communication system 失效
公开(公告)号：US20060217158A1
公开(公告)日：2006-09-28
申请号：US11350111
申请日：2006-02-09
申请人： Koki Uwano , Masanori Taira , Kenzaburo Fujishima , Mikio Kuwahara
发明人： Koki Uwano , Masanori Taira , Kenzaburo Fujishima , Mikio Kuwahara
IPC分类号： H04M1/00
CPC分类号： H04B7/0408 , H04B7/0617 , H04W16/26 , H04W16/28 , H04W28/10 , H04W64/006
摘要： A wireless communication which suppresses radio interference between wireless base stations and improves the channel efficiency is implemented. In the wireless communication system including a central base station, a plurality of remote base stations having a direction-variable antenna, and a plurality of mobile stations to communicate with the remote base stations, the central base station performs centralized management of radio-wave beam patterns to be sent to the plurality of mobile stations which will communicate with remote base stations and performs packet scheduling of the mobile stations in such a manner that radio waves sent from the remote base stations will not cause strong interference at the mobile stations.

94. 发明授权

US07013111B2 Wireless communication apparatus 有权
公开(公告)号：US07013111B2
公开(公告)日：2006-03-14
申请号：US10206047
申请日：2002-07-29
申请人： Mikio Kuwahara , Kenichi Mizugaki , Atsushi Ogino , Kenzaburo Fujishima
发明人： Mikio Kuwahara , Kenichi Mizugaki , Atsushi Ogino , Kenzaburo Fujishima
IPC分类号： H04B7/15
CPC分类号： H04W64/00 , G01S5/0205 , G01S5/0236
摘要： The disclosed invention provides a wireless communications terminal apparatus that calculates its accurate position, eliminating the influence of a repeater on the calculation without using complicated processing. The terminal apparatus receives signals transmitted from a plurality of radio stations and calculates its position, using the received signals. The terminal apparatus comprises repeater detection means for detecting a signal from a repeater which transmits signals that are generated on the basis of signals transmitted from one of the radio stations and indistinguishable from the signals transmitted from that radio station from among the received signals and position calculation means for calculating its position. When the repeater detection means has detected a signal from a repeater, the position calculation means ignores the detected signal from the repeater and calculates the terminal position, using the received signals from other radio stations.

95. 发明授权

US06990351B2 Equipment for the calculation of mobile handset position 有权
公开(公告)号：US06990351B2
公开(公告)日：2006-01-24
申请号：US10076664
申请日：2002-02-19
申请人： Katsuhiko Tsunehara , Mikio Kuwahara
发明人： Katsuhiko Tsunehara , Mikio Kuwahara
IPC分类号： H04Q7/20 , G01S5/02
CPC分类号： H04W64/00
摘要： Even in areas where signals from only two or less base stations are available for position calculation, the mobile handset position can be calculated, expanding the position information service area and improving the usefulness. When the number of base stations available for position calculation is three or more, the position calculation is performed based on trilateration. When the number of available base stations is two or one, the position calculation is performed by using a two-station-based position calculation method or a one-station-based position calculation method according to the number of available base stations.

96. 发明申请

US20060002287A1 Wireless base station 失效
标题翻译：无线基站
公开(公告)号：US20060002287A1
公开(公告)日：2006-01-05
申请号：US11065364
申请日：2005-02-25
申请人： Mikio Kuwahara , Kenzaburo Fujishima , Masanori Taira , Koji Meguro , Toru Okamoto
发明人： Mikio Kuwahara , Kenzaburo Fujishima , Masanori Taira , Koji Meguro , Toru Okamoto
IPC分类号： H04Q7/00 , H04B7/212
CPC分类号： H04W16/28
摘要： To provide a wireless base station comprising an array antenna which transmits packets to terminals, a packet scheduler which determines transmission sequence of the packets, a modulator which generates modulated signals based on the packets, and a beam former for transmission signal which multiplies the packets with array weights for transmission signal and outputs the transmission signal to the array antenna the beam former for transmission signal comprises a memory which stores the array weights for transmission signal associated with the terminals' IDs. The beam former for transmission signal receives the IDs of selected terminals from the packet scheduler, refers to the memory, and selects the array weights for transmission signal by the IDs of the terminals.
摘要翻译：为了提供一种无线基站，其包括向终端发送分组的阵列天线，确定分组的传输序列的分组调度器，基于分组生成调制信号的调制器，以及用于将分组与发射信号的阵列权重并将传输信号输出到阵列天线，用于传输信号的波束形成器包括存储器，用于存储与终端ID相关联的传输信号的阵列权重。用于发送信号的波束形成器从分组调度器接收所选择的终端的ID，参考存储器，并且通过终端的ID来选择发送信号的阵列权重。

97. 发明授权

US06900753B2 Method for measuring distance and position using spread spectrum signal, and an equipment using the method 有权
标题翻译：使用扩频信号测量距离和位置的方法，以及使用该方法的设备
公开(公告)号：US06900753B2
公开(公告)日：2005-05-31
申请号：US10680089
申请日：2003-10-08
申请人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
发明人： Katsuhiko Tsunehara , Nobukazu Doi , Mikio Kuwahara , Tomoaki Ishifuji
IPC分类号： G01S1/02 , G01S1/04 , G01S5/10 , G01S19/19 , G01S19/25 , H04B1/7113 , H04J13/00 , H04W64/00 , H04W88/02 , G01S13/08
CPC分类号： G01S5/0215 , G01S1/026 , G01S1/045 , G01S5/10 , H04B1/70755 , H04B2201/70715
摘要： By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation section 105, the first threshold value timing detection section 103 selects only the earliest receive timing exceeding the first threshold value, from all the timing that the correlation value in the delay profile becomes a maximum. By using the receive timing and the second threshold value 331 received from the second threshold value calculation section 107, reference timing calculation section 106 selects the reference timing required for calculating the receive timing for the incoming wave of the minimum propagation delay time. The timing delayed by previously set timing behind said reference timing is sent from receive timing calculation section 108 as the receive timing 113 of the incoming wave of the minimum propagation delay time.
摘要翻译：通过使用从第一阈值计算部105接收到的延迟分布创建部102和第一阈值330所产生的延迟分布，第一阈值定时检测部103从全部仅选择超过第一阈值的最早的接收定时延迟分布中的相关值变为最大的定时。通过使用从第二阈值计算部107接收到的接收定时和第二阈值331，基准定时计算部106选择计算最小传播延迟时间的入射波的接收定时所需的基准定时。从接收定时计算部108发送作为最小传播延迟时间的输入波的接收定时113的从基准定时之后预先设定的定时延迟的定时。

98. 发明授权

US06704547B2 Wireless communication base station transmission timing offset correction system 失效
标题翻译：无线通信基站传输定时偏移校正系统
公开(公告)号：US06704547B2
公开(公告)日：2004-03-09
申请号：US09793908
申请日：2001-02-28
申请人： Mikio Kuwahara , Tomoaki Ishifuji , Nobukazu Doi
发明人： Mikio Kuwahara , Tomoaki Ishifuji , Nobukazu Doi
IPC分类号： H04B1700
CPC分类号： H04J3/0685 , H04J3/0644 , H04J3/0688
摘要： An apparatus, system and method for measuring timing of a signal transmitted from a wireless base station antenna. The apparatus and system include a wireless base station antenna that transmits a first signal, and a transmission timing measurement apparatus having a first antenna and a second antenna that receives an accurate time value and the first signal, and that outputs an offset of the first signal from the accurate time value. The method includes receiving an accurate time, receiving the reception time transmitted from the wireless base station antenna, receiving the reception time value and the accurate time value, and comparing of the reception time value and the accurate time value.
摘要翻译：一种用于测量从无线基站天线发送的信号的定时的装置，系统和方法。该装置和系统包括发送第一信号的无线基站天线和具有接收准确时间值和第一信号的第一天线和第二天线的发送定时测量装置，并且输出第一信号的偏移从准确的时间值。该方法包括接收准确的时间，接收从无线基站天线发送的接收时间，接收接收时间值和准确时间值，以及比较接收时间值和准确时间值。

99. 发明授权

US06694142B1 Wireless terminal positioning method and apparatus 失效
标题翻译：无线终端定位方法及装置
公开(公告)号：US06694142B1
公开(公告)日：2004-02-17
申请号：US09621418
申请日：2000-07-21
申请人： Mikio Kuwahara , Ayumu Koide , Katsuhiko Tsunehara , Nobukazu Doi
发明人： Mikio Kuwahara , Ayumu Koide , Katsuhiko Tsunehara , Nobukazu Doi
IPC分类号： H04Q720
CPC分类号： H04W64/00 , G01S5/14
摘要： In a wireless terminal position measuring method for estimating the position of a terminal using signals sent from at least three base stations accommodated by a cellular communication system, position of the terminal is estimates according to the triangulation method by selecting three base stations arbitrarily, a plurality of estimated positions thus calculated are stored in a memory and averaged thereafter to obtain a final estimated position.
摘要翻译：在利用由蜂窝通信系统容纳的至少三个基站发送的信号来估计终端的位置的无线终端位置测量方法中，根据三角测量方法通过任意选择三个基站来估计终端的位置，多个由此计算的估计位置被存储在存储器中，然后对其进行平均以获得最终估计位置。

100. 发明授权

US5914693A Coaxial resonant slot antenna, a method of manufacturing thereof, and a radio terminal 失效
标题翻译：同轴谐振槽天线，其制造方法和无线终端
公开(公告)号：US5914693A
公开(公告)日：1999-06-22
申请号：US708563
申请日：1996-09-05
申请人： Ken Takei , Mikio Kuwahara , Hiroshi Okabe , Hiroshi Kishida , Kazuyuki Hori , Yoshitaka Imakado , Tomonori Nomura
发明人： Ken Takei , Mikio Kuwahara , Hiroshi Okabe , Hiroshi Kishida , Kazuyuki Hori , Yoshitaka Imakado , Tomonori Nomura
IPC分类号： H01Q1/24 , H01Q13/16 , H01Q13/10
CPC分类号： H01Q1/243 , H01Q13/16
摘要： A coaxial resonant slot antenna having a novel structure is provided to further reduce the dimensions of radio terminals incorporating such an antenna. Also provided are a novel method of fabricating such a coaxial resonant slot antenna and a radio terminal having a novel structure using such a coaxial resonant slot antenna. An entire strip conductor is arranged inside a flat conductive cubic such that the strip conductor is insulated from the conductive cubic. A connection point between the strip conductor and a radio frequency transmission line is provided at a position about 1/4 of wavelength away from one end of the strip conductor. A slot is shaped into a narrow rectangle, a generally upside-down "U", or a generally upside-down "U" having another slot on each end. It is desired that the center slot crosses the strip conductor along the length thereof and in the height direction thereof, the distance between the ends being equivalent to about 1/2 of wavelength used. The radio terminal has a plurality of antennas associated with the present invention arranged on a plurality of surfaces and provides a connection mechanism for varying the number of antennas to be used in the talk mode and the standby mode.
摘要翻译：提供具有新颖结构的同轴谐振缝隙天线，以进一步减小结合这种天线的无线电终端的尺寸。还提供了一种使用这种同轴谐振缝隙天线制造这种同轴谐振缝隙天线和具有新颖结构的无线电终端的新方法。整个带状导体布置在平坦导电立方体的内部，使得带状导体与导电立方体绝缘。带状导体和射频传输线之间的连接点设置在远离带状导体一端的距离为+ E，fra 1/4 + EE波长的位置处。狭槽成形为一个狭窄的矩形，一般是倒置的“U”，或者在每一端有另一个槽的大体倒置的“U”。期望中心狭槽沿着其长度和带状导体的高度方向与条形导体相交，端部之间的距离等于使用的波长的大约+ E，fra 1/2 + EE。无线电终端具有布置在多个表面上的与本发明相关联的多个天线，并提供用于改变在通话模式和待机模式中要使用的天线数量的连接机构。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式