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公开(公告)号：EP4243477A2
公开(公告)日：2023-09-13
申请号：EP23188575.7
申请日：2014-05-23
发明人： FUKUZONO, Hayato , MURAKAMI, Tomoki , KUDO, Riichi , SHINOHARA, Shoko , TAKATORI, Yasushi , MIZOGUCHI, Masato
IPC分类号： H04W16/28
摘要： A wireless communication apparatus includes a designation unit which generates format designation information for designating a format of transmission and reception for another wireless communication apparatus, a first transmission unit which wirelessly transmits the format designation information to the other wireless communication apparatus, an acquisition unit which acquires a packet, a propagation channel estimation unit which estimates uplink propagation channel information indicating a propagation channel from the other wireless communication apparatus to the wireless communication apparatus based on the packet, a calibration coefficient calculation unit which calculates a calibration coefficient based on downlink propagation channel information indicating a propagation channel from the wireless communication apparatus to the other wireless communication apparatus and the uplink propagation channel information, a transmission weight value calculation unit which calculates a transmission weight value based on the calibration coefficient and the uplink propagation channel information, and a second transmission unit which wirelessly transmits a predetermined signal to the other wireless communication apparatus based on the transmission weight value.
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公开(公告)号：EP3547565B1
公开(公告)日：2020-11-04
申请号：EP19153099.7
申请日：2013-02-04
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3.发明公开
公开(公告)号：EP3176964A1
公开(公告)日：2017-06-07
申请号：EP16204161.0
申请日：2014-01-15
发明人： ISHIHARA, Koichi , MIZOGUCHI, Masato , MURAKAMI, Tomoki , KATAOKA, Tomoyoshi , KISAKA, Yoshiaki , NAKAGAWA, Tadao , YAMAZAKI, Etsushi , OKAMOTO, Seiji , HORIKOSHI, Kengo , TOMIZAWA, Masahito , KUDO, Riichi
IPC分类号： H04B10/25 , H04B10/077 , H04B10/69 , H04J14/08
CPC分类号： H04J14/08 , H04B10/0775 , H04B10/2513 , H04B10/25133 , H04B10/516 , H04B10/61 , H04B10/6161 , H04B10/697 , H04B2210/072 , H04J3/14
摘要： The estimation of an amount of chromatic dispersion using a training signal sequence is possible. A transmission method includes: a training signal sequence generation step of generating, as training signal sequences, a plurality of signal sequences having power concentrated in a plurality of frequency bands, the power concentrated at different frequency bands; a training signal sequence selection step of selecting at least one training signal sequence from among the plurality of training signal sequences generated in the training signal sequence generation step, a signal multiplexing step of generating a signal sequence obtained by time-division multiplexing the training signal sequence selected in the training signal sequence selection step with a transmission data sequence, and an electrical-to-optical conversion step of transmitting the signal sequence generated in the signal multiplexing step as an optical signal.
摘要翻译： 使用训练信号序列估计色散量是可能的。 一种发送方法，包括：训练信号序列生成步骤，生成集中在多个频带中的多个信号序列作为训练信号序列，所述多个信号序列集中在不同的频带; 训练信号序列选择步骤，从训练信号序列生成步骤中生成的多个训练信号序列中选择至少一个训练信号序列;信号多路复用步骤，生成通过对训练信号序列进行时分多路复用而获得的信号序列 在训练信号序列选择步骤中选择发送数据序列;以及电光转换步骤，将在信号多路复用步骤中生成的信号序列作为光信号发送。
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公开(公告)号：EP3780414A1
公开(公告)日：2021-02-17
申请号：EP20198494.5
申请日：2013-02-04
发明人： MURAKAMI, Tomoki , ASAI, Yusuke , KUDO, Riichi , ISHIHARA, Koichi , MIZOGUCHI, Masato , ICHIKAWA, Takeo
摘要： Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.
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公开(公告)号：EP4243477A3
公开(公告)日：2023-12-20
申请号：EP23188575.7
申请日：2014-05-23
发明人： FUKUZONO, Hayato , MURAKAMI, Tomoki , KUDO, Riichi , SHINOHARA, Shoko , TAKATORI, Yasushi , MIZOGUCHI, Masato
IPC分类号： H04W16/28 , H04L25/02 , H04B7/0417 , H04B7/06
摘要： A wireless communication apparatus includes a designation unit which generates format designation information for designating a format of transmission and reception for another wireless communication apparatus, a first transmission unit which wirelessly transmits the format designation information to the other wireless communication apparatus, an acquisition unit which acquires a packet, a propagation channel estimation unit which estimates uplink propagation channel information indicating a propagation channel from the other wireless communication apparatus to the wireless communication apparatus based on the packet, a calibration coefficient calculation unit which calculates a calibration coefficient based on downlink propagation channel information indicating a propagation channel from the wireless communication apparatus to the other wireless communication apparatus and the uplink propagation channel information, a transmission weight value calculation unit which calculates a transmission weight value based on the calibration coefficient and the uplink propagation channel information, and a second transmission unit which wirelessly transmits a predetermined signal to the other wireless communication apparatus based on the transmission weight value.
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公开(公告)号：EP4216454A1
公开(公告)日：2023-07-26
申请号：EP23162696.1
申请日：2013-02-04
发明人： MURAKAMI, Tomoki , ASAI, Yusuke , KUDO, Riichi , ISHIHARA, Koichi , MIZOGUCHI, Masato , ICHIKAWA, Takeo
摘要： Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.
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公开(公告)号：EP3761756A1
公开(公告)日：2021-01-06
申请号：EP19761291.4
申请日：2019-02-25
摘要： [Problem] The base station includes a plurality of radio communication units configured to individually support a plurality of communication capabilities, and performs, for a terminal station that is connected to the base station, control for selecting a radio communication unit based on a communication scheme supported in the terminal station.
[Solution] Provided is a radio communication method for a radio communication system including a plurality of base stations provided with a plurality of radio communication units for which different communication schemes are settable, and a terminal station configured to perform radio communication with the radio communication unit of the base station by using a specific communication scheme. The radio communication method includes setting, at the base station, for the radio communication units, different communication schemes based on a setting policy of the communication scheme, and a switching policy used for selecting the radio communication unit to which the terminal station is to be connected, collecting, at the base station, communication scheme information on a communication scheme selectable by the terminal station, when the terminal station establishes a connection or a reconnection with the base station, selecting, at the base station, a radio communication unit to which the terminal station is to be connected, in accordance with the communication scheme information, the setting policy, and the switching policy, and updating, at the base station, the setting policy and the switching policy for the radio communication unit.-
公开(公告)号：EP3761755A1
公开(公告)日：2021-01-06
申请号：EP19760338.4
申请日：2019-02-25
摘要： [Problem] A base station includes a plurality of radio communication units individually supporting a plurality of communication capabilities, and controls a terminal station to be connected with the base station to select a radio communication unit according to a communication scheme of the terminal station.
[Solution] Provided is a radio communication method of a radio communication system. The radio communication system includes a plurality of base stations mounted with a plurality of radio communication units for which different communication schemes are settable, a terminal station configured to perform radio communication in a certain communication scheme, and a centralized control station configured to control the plurality of base stations. The radio communication method includes calculating, by the centralized control station, a setting policy of a communication scheme for each of the plurality of radio communication units of each of the plurality of base stations and a switching policy for the terminal station and the radio communication unit, and notifying the base station of the policies, setting, by the base station, the setting policy and the switching policy, notified from the centralized control station, for the radio communication unit, collecting, by the base station, communication scheme information of communication schemes selectable by the terminal station from the terminal station to be connected, and selecting, by the base station, a radio communication unit to be connected by the terminal station in accordance with the communication scheme information, the setting policy, and the switching policy.-
9.发明授权
公开(公告)号：EP3176964B1
公开(公告)日：2018-03-28
申请号：EP16204161.0
申请日：2014-01-15
发明人： ISHIHARA, Koichi , MIZOGUCHI, Masato , MURAKAMI, Tomoki , KATAOKA, Tomoyoshi , KISAKA, Yoshiaki , NAKAGAWA, Tadao , YAMAZAKI, Etsushi , OKAMOTO, Seiji , HORIKOSHI, Kengo , TOMIZAWA, Masahito , KUDO, Riichi
IPC分类号： H04B10/25 , H04B10/077 , H04B10/69 , H04J14/08
CPC分类号： H04J14/08 , H04B10/0775 , H04B10/2513 , H04B10/25133 , H04B10/516 , H04B10/61 , H04B10/6161 , H04B10/697 , H04B2210/072 , H04J3/14
摘要： The estimation of an amount of chromatic dispersion using a training signal sequence is possible. A transmission method includes: a training signal sequence generation step of generating, as training signal sequences, a plurality of signal sequences having power concentrated in a plurality of frequency bands, the power concentrated at different frequency bands; a training signal sequence selection step of selecting at least one training signal sequence from among the plurality of training signal sequences generated in the training signal sequence generation step, a signal multiplexing step of generating a signal sequence obtained by time-division multiplexing the training signal sequence selected in the training signal sequence selection step with a transmission data sequence, and an electrical-to-optical conversion step of transmitting the signal sequence generated in the signal multiplexing step as an optical signal.
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