专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP2905983B1 WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD 有权
公开(公告)号：EP2905983B1
公开(公告)日：2018-07-18
申请号：EP13853482.1
申请日：2013-11-12
申请人： Nippon Telegraph and Telephone Corporation
发明人： ABEYSEKERA Hirantha Sithira , ISHIHARA Koichi , INOUE Yasuhiko , ASAI Yusuke , TAKATORI Yasushi , ICHIKAWA Takeo , MIZOGUCHI Masato , MATSUI Munehiro
IPC分类号： H04W16/10 , H04W24/02 , H04W84/12 , H04W88/08
CPC分类号： H04W16/14 , H04W24/02 , H04W72/0453 , H04W84/12 , H04W88/08
摘要： A wireless communication apparatus is provided that is capable of performing setting of a wireless LAN access point so that frequency utilization efficiency of an entire wireless communication system that includes wireless LAN access points of different manufacturers and different model numbers is improved. A wireless communication system which performs setting necessary for a wireless LAN access point constituting a wireless communication network to operate includes: an information collection unit which collects setting information set in the wireless LAN access point and wireless environment information in the wireless LAN access point, a parameter calculation unit which obtains a parameter to be set for the wireless LAN access point, which is a collection source, based on the collected setting information and the collected wireless environment information, and a parameter setting unit which transmits the obtained parameter to the wireless LAN access point, which is a collection source, over a network and performs setting of the parameter.

2. 发明公开

EP3340723A1 RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD 有权
公开(公告)号：EP3340723A1
公开(公告)日：2018-06-27
申请号：EP16839135.7
申请日：2016-08-15
申请人： Nippon Telegraph And Telephone Corporation
发明人： KUDO Riichi , ABEYSEKERA Hirantha Sithira , MATSUI Munehiro , SHINOHARA Shoko , TAKATORI Yasushi , ICHIKAWA Takeo , MIZOGUCHI Masato
IPC分类号： H04W74/04 , H04W72/04 , H04W72/08 , H04W72/12 , H04W84/12
摘要： Provided is a wireless communication system in which, based on a random access scheme, a transmission opportunity (TXOP) acquired by a wireless access point is granted to a wireless station when performing uplink data transmission from the wireless station to the wireless access point and the TXOP acquired by the wireless station is granted to the wireless access point when performing downlink data transmission from the wireless access point to the wireless station, the system includes a scheduling unit for TXOP granting determining one or more wireless stations having a quality of an uplink data transmission lower than a prescribed value as TXOP responders to which the wireless access point grants the TXOP, and determining one or more wireless stations having a quality of a downlink data transmission lower than the prescribed value as TXOP holders which grant the TXOP to the wireless access point.

3. 发明授权

EP3340723B1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 有权
公开(公告)号：EP3340723B1
公开(公告)日：2020-10-07
申请号：EP16839135.7
申请日：2016-08-15
申请人： Nippon Telegraph And Telephone Corporation
发明人： KUDO Riichi , ABEYSEKERA Hirantha Sithira , MATSUI Munehiro , SHINOHARA Shoko , TAKATORI Yasushi , ICHIKAWA Takeo , MIZOGUCHI Masato
IPC分类号： H04W74/08 , H04W72/12 , H04W74/04 , H04W84/12

4. 发明公开

EP2456097A1 WAVELENGTH DISPERSION AMOUNT CALCULATION DEVICE, OPTICAL SIGNAL RECEPTION DEVICE, OPTICAL SIGNAL TRANSMISSION DEVICE, AND WAVELENGTH DISPERSION AMOUNT CALCULATION METHOD 有权
标题翻译：装置：用于光信号的实用计算的波长色散量的转让和方法计算的波长色散量，接收装置中，DEVICE
公开(公告)号：EP2456097A1
公开(公告)日：2012-05-23
申请号：EP10799861.9
申请日：2010-07-14
申请人： Nippon Telegraph And Telephone Corporation
发明人： ISHIHARA Koichi , KOBAYASHI Takayuki , KUDO Riichi , TAKATORI Yasushi , MATSUI Munehiro , MIZOGUCHI Masato , NAKAGAWA Tadao , YAMAZAKI Etsushi , SANO Akihide , MIYAMOTO Yutaka , YOSHIDA Eiji , YAMANAKA Shogo
IPC分类号： H04B10/02 , H04B3/06 , H04B10/18
CPC分类号： H04B10/0775 , H04B3/06 , H04B10/25133
摘要： In order to compensate for chromatic dispersion caused by optical fiber transmission in a communication system with coherent detection using optical signals, specific frequency band signals are used to enable estimation of a chromatic dispersion value. The chromatic dispersion value calculating apparatus is provided with: a signal distributing circuit which distributes, into a plurality of signal sequences, an electrical digital signal converted from received optical signals of an optical signal transmitted by an optical signal transmitting apparatus, in which a known signal with concentrated frequency components of a plurality of specific frequencies is appended to a signal generated from a transmission data sequence; a plurality of frequency band pass filter circuits, each of which separating only each of a plurality of specific frequency components in which the known signal is included from each of the signal sequences distributed by the signal distributing circuit, and passing each of the specific frequency components therethrough; a plurality of power calculating circuits which are provided so as to correspond respectively to the plurality of frequency band pass filter circuits and which calculate power values of signals output from the corresponding frequency band pass filter circuits; a delay time calculating circuit which detects times at which power has the maximum value or times at which the power exceeds a predetermined threshold value, respectively from signal sequences of the power values output from the plurality of power calculating circuits, and which compares the detected times; and a chromatic dispersion value calculating circuit which calculates a chromatic dispersion value based on a comparison result of the times by the delay time calculating circuit.
摘要翻译：为了补偿色散光纤通过传输与使用的光信号相干检测的通信系统中引起的，特定频带信号被用于使色散值的估计。波长色散值计算装置设置有：信号分配电路用于分配成信号序列从由在光信号发送装置mitted的光信号的反式的接收的光信号转换电数字信号，多个在其中的已知信号与被附加到从发送数据序列而生成的信号的特定频率的多个频率分量集中; 频率的带通滤波器电路的复数，每个的其中仅分离每个在其中已知信号从由所述信号分配的信号序列包括分配电路特定频率分量的多个，并且每个传递的特定频率分量的那里通过; 的功率计算提供哪些电路，以便分别对应于频率带通滤波电路的多元性并且计算从相应的频率的带通滤波器电路的输出信号的功率值的多个; 其中在哪个功率检测时间的延迟时间计算电路具有最大值或倍其中功率从功率计算电路的所述多个输出的功率值的信号序列超过预定阈值，分别和其比较所检测到的次 ; 和色散值计算电路，其计算基于由所述延迟时间计算电路的时间的比较结果的色散值。

5. 发明授权

EP2642781B1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 有权
公开(公告)号：EP2642781B1
公开(公告)日：2019-10-30
申请号：EP11842236.9
申请日：2011-11-15
申请人： Nippon Telegraph And Telephone Corporation
发明人： KUDO Riichi , MATSUI Munehiro , MURAKAMI Tomoki , ICHIKAWA Takeo , ASAI Yusuke , ISHIHARA Koichi , YAMADA Tomoyuki , MIZOGUCHI Masato
IPC分类号： H04B7/0452 , H04B7/06 , H04L5/00 , H04W16/28 , H04W24/10 , H04B17/318

6. 发明授权

EP2290837B1 RECEIVER DEVICE, TRANSMITTING SYSTEM AND RECEPTION METHOD 有权
标题翻译：接收装置传输系统和接收程序
公开(公告)号：EP2290837B1
公开(公告)日：2016-09-21
申请号：EP09766726.5
申请日：2009-06-19
申请人： Nippon Telegraph And Telephone Corporation
发明人： ISHIHARA Koichi , KOBAYASHI Takayuki , KUDO Riichi , TAKATORI Yasushi , MATSUI Munehiro , MIZOGUCHI Masato , SANO Akihide , YAMADA Eiichi , YAMAZAKI Etsushi , MIYAMOTO Yutaka , NOSAKA Hideyuki
IPC分类号： H04B7/08 , H04J11/00 , H04L27/00
CPC分类号： H04B7/084 , H04B7/0845 , H04L2027/0067

7. 发明公开

EP2456107A1 METHOD FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL AND DEVICE FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL 有权
标题翻译：用于接收频域复用的信号的方法和装置，用于接收频域复用信号
公开(公告)号：EP2456107A1
公开(公告)日：2012-05-23
申请号：EP10799887.4
申请日：2010-07-15
申请人： Nippon Telegraph and Telephone Corporation
发明人： KUDO Riichi , KOBAYASHI Takayuki , ISHIHARA Koichi , TAKATORI Yasushi , NOSAKA Hideyuki , MATSUI Munehiro , MIZOGUCHI Masato , NAKAGAWA Tadao , YAMAZAKI Etsushi , SANO Akihide , MIYAMOTO Yutaka , YOSHIDA Eiji
IPC分类号： H04J11/00
CPC分类号： H04L27/2672 , H04L25/03159 , H04L27/2633 , H04L27/265 , H04L27/266 , H04L2025/03414
摘要： A frequency domain multiplexed signal receiving method which decodes received signals that are multiplexed in a frequency domain, includes: a digital signal acquisition step of acquiring digital signals from the received signals that are multiplexed in the frequency domain; an offset discrete Fourier transform step of applying an offset discrete Fourier transform to odd discrete point numbers based on the acquired digital signals; and a decode step of decoding frequency domain digital signals in the frequency domain obtained by the offset discrete Fourier transform, and that are the frequency domain digital signals of one or more frequency channels.
摘要翻译：其解码所接收的信号并在频域复用的频域复用的信号接收方法，包括：从接收到的信号中获取数字信号的数字信号获取的步骤并在频域复用; 以抵消离散傅里叶变换施加于偏移离散傅立叶变换为离散基于所获取的数字信号奇点号码的步骤; 和解码的频域数字信号的在由偏移离散傅立叶获得的频域中的解码步骤变换，并做是一个或多个频率信道的频域数字信号。

8. 发明公开

EP2290837A1 RECEIVER DEVICE, TRANSMITTING SYSTEM AND RECEPTION METHOD 有权
标题翻译： EMPFANGSVORRICHTUNG，ÜBERTRAGUNGSSYSTEMUND EMPFANGSVERFAHREN
公开(公告)号：EP2290837A1
公开(公告)日：2011-03-02
申请号：EP09766726.5
申请日：2009-06-19
申请人： Nippon Telegraph And Telephone Corporation
发明人： ISHIHARA Koichi , KOBAYASHI Takayuki , KUDO Riichi , TAKATORI Yasushi , MATSUI Munehiro , MIZOGUCHI Masato , SANO Akihide , YAMADA Eiichi , YAMAZAKI Etsushi , MIYAMOTO Yutaka , NOSAKA Hideyuki
IPC分类号： H04B7/08 , H04J11/00
CPC分类号： H04B7/084 , H04B7/0845 , H04L2027/0067
摘要： A receiver device receives a signal inputted to one or a plurality of ports as a plurality of received signals, and includes: a phase offset estimating unit that, on the basis of a unique word of each signal block contained in said received signal, estimates the phase offset, and a phase offset compensating unit that, on the basis of a phase offset estimated by said phase offset estimating unit, compensates the phase offset; the receiver device uses a known signal component (unique word) contained in a frequency-domain equalized signal to compensate the phase offset, whereby it compensates complex phase offset fluctuation, and estimates the phase offset of a signal obtained at each port.
摘要翻译：接收机装置接收输入到一个或多个端口的信号作为多个接收信号，并且包括：相位偏移估计单元，其基于包含在所述接收信号中的每个信号块的唯一字，估计以及相位偏移补偿单元，其基于由所述相位偏移估计单元估计的相位偏移补偿相位偏移; 接收机设备使用包含在频域均衡信号中的已知信号分量（唯一字）来补偿相位偏移，从而补偿复相位偏移波动，并且估计在每个端口处获得的信号的相位偏移。

9. 发明授权

EP2547155B1 WIRELESS COMMUNICATION METHOD AND BASE STATION FOR SUPPRESSING INTERFERENCE 有权
公开(公告)号：EP2547155B1
公开(公告)日：2019-05-22
申请号：EP11753437.0
申请日：2011-03-10
申请人： Nippon Telegraph And Telephone Corporation
发明人： MURAKAMI Tomoki , KUDO Riichi , ICHIKAWA Takeo , TAKATORI Yasushi , MATSUI Munehiro , ASAI Yusuke , MIZOGUCHI Masato
IPC分类号： H04B7/0452 , H04B5/00 , H04W52/24 , H04W72/04 , H04W72/08 , H04L5/00 , H04B17/345

10. 发明授权

EP2521293B1 TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTER APPARATUS, AND RECEIVER APPARATUS 有权
标题翻译：传输方法，接收方法，传输装置，接收装置
公开(公告)号：EP2521293B1
公开(公告)日：2016-04-13
申请号：EP11739836.2
申请日：2011-02-03
申请人： Nippon Telegraph And Telephone Corporation
发明人： NAKAGAWA Tadao , YAMAZAKI Etsushi , ISHIHARA Koichi , KOBAYASHI Takayuki , KUDO Riichi , TAKATORI Yasushi , MATSUI Munehiro , MIYAMOTO Yutaka , SANO Akihide , YOSHIDA Eiji , MIZOGUCHI Masato
IPC分类号： G02F1/01 , H04J14/06 , H04J11/00 , H04B10/532 , H04B10/60 , H04B10/50
CPC分类号： H04B10/5053 , G02F1/0136 , H04B10/532 , H04B10/60 , H04J14/06

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