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公开(公告)号：US12088978B2
公开(公告)日：2024-09-10
申请号：US17911736
申请日：2020-03-19
发明人： Tomoya Hatano , Keita Takahashi , Naotaka Shibata , Hiroko Nomura
CPC分类号： H04Q11/0067 , H04B10/614 , H04Q2011/0079
摘要： One aspect of the present invention is a communication system for a passive optical network that includes: an OLT system including a first OLT (Optical Line Terminal), a second OLT, and an OLT control apparatus that controls the first OLT and the second OLT; a plurality of splitters that are connected between the first OLT and the second OLT using optical communication channels; and ONU systems that are connected to the respective splitters using optical communication channels, and each include a first session establishing unit that establishes a session with the first OLT, a second session establishing unit that establishes a session with the second OLT, and a signal processing unit that executes signal processing of an ONU (Optical Network Unit) based on an optical signal output from the first session establishing unit or the second session establishing unit.
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公开(公告)号：US12058557B2
公开(公告)日：2024-08-06
申请号：US17603464
申请日：2020-04-02
发明人： Tatsuya Fukui , Naotaka Shibata , Keita Takahashi , Hideaki Kimura , Noriyuki Ota , Hirofumi Yamamoto , Jun Terada
CPC分类号： H04W28/0252 , H04W92/04
摘要： An object is to provide a communication system, a communication apparatus, and a terminal apparatus capable of integrating communication paths of both of mobile access and fixed access while addition of a new function to a mobile network is reduced.
In a communication system 100 according to the present invention, a communication path of one mobile bearer between a base station master station apparatus 300 and a user gateway 600 includes a split bearer configuration including a mobile access communication path being connected from the base station master station apparatus 300 to the user gateway 600 via a mobile access slave station apparatus 400 and a non-mobile access communication path being connected from the base station master station apparatus 300 to the user gateway 600 via a non-mobile access slave station apparatus 500.-
3.发明授权公开(公告)号：US12095548B2
公开(公告)日：2024-09-17
申请号：US18012441
申请日：2020-06-29
发明人： Keita Takahashi , Hiroko Nomura , Naotaka Shibata , Tomoya Hatano
CPC分类号： H04J14/0289 , H04Q11/04 , H04B10/40 , H04B10/50 , H04B10/60 , H04Q2213/13292
摘要： Provided is a multiplex transmission system capable of preventing occurrence of a mistake on connection of a client device to a multiplex transmission device. The multiplex transmission system includes: a detection means configured to detect new client connection that is new connection of a client device to a client port of each of a first multiplex transmission device 100 and a second multiplex transmission device 200; and a switch control unit 340 configured to control a switch unit 330 to connect a client port where new client connection is detected at a first time point in the first multiplex transmission device 100 with a client port where new client connection is detected at a second time point in the second multiplex transmission device, when a time interval between the first time point at which new client connection is detected in the first multiplex transmission device 100 and the second time point at which new client connection is detected in the second multiplex transmission device 200 is within a preset reference time, in a case where new client connection is detected in both the first multiplex transmission device 100 and the second multiplex transmission device 200.
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公开(公告)号：US12047848B2
公开(公告)日：2024-07-23
申请号：US17291259
申请日：2019-10-25
摘要： A relay device including: an information storage unit that stores conversion-target header information; a downlink signal dividing unit that divides a downlink signal received from the radio control device into a header and a payload; a signal replicating unit that makes the same number of copies of the payload of the downlink signal as the number of the plurality of destination radio devices; a downlink signal header information conversion unit that performs conversion on the header of the downlink signal for each destination radio device based on the header information stored in the information storage unit; and a signal addition assignment unit that adds the header converted by the downlink signal header information conversion unit to each of the payloads of the downlink signal replicated by the signal replicating unit, and transfers the payloads to the radio devices respectively corresponding thereto.
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公开(公告)号：US12063072B2
公开(公告)日：2024-08-13
申请号：US17802126
申请日：2020-03-06
发明人： Tomoya Hatano , Keita Takahashi , Naotaka Shibata , Hiroko Nomura
IPC分类号： H04B10/03 , H04B10/275
CPC分类号： H04B10/275 , H04B10/03
摘要： A communication system of a passive optical communication network includes an optical line terminal (OLT) system including a first OLT, a second OLT, and an OLT control device that controls the first OLT and the second OLT, a plurality of splitters that connects between the first OLT and the second OLT with an optical communication path, and an optical network unit (ONU) that is connected to each of the plurality of splitters with an optical communication path.
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公开(公告)号：US12010521B2
公开(公告)日：2024-06-11
申请号：US17602893
申请日：2020-03-26
发明人： Naotaka Shibata , Keita Takahashi , Tatsuya Fukui , Hideaki Kimura , Hirofumi Yamamoto , Noriyuki Ota , Jun Terada
摘要： Signal transfer devices that relay base stations of service providers that perform communication with radio terminals and an aggregation station that controls the base stations, and a route control device that controls signal distribution to user network interfaces (UNIs) and network network interfaces (NNIs) of each of the signal transfer devices, are included. The route control device includes an allocation information acquisition unit that acquires allocation information of frequency to each of the base stations; a band adjustment unit that adjusts an MBH band for each of the UNIs, on the basis of correspondence relation information representing a correspondence relation between the UNIs and the service providers, band information indicating a maximum MBH band of each of the UNIs, and the allocation information; and a distribution determination unit that determines signal distribution to each of the NNIs, on the basis of the MBH band adjusted by the band adjustment unit and configuration information representing a connection configuration of each of the signal transfer devices. The signal transfer device transmits a signal from each of the NNIs on the basis of the signal distribution to each of the NNIs determined by the distribution determination unit.
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公开(公告)号：US11936432B2
公开(公告)日：2024-03-19
申请号：US17907948
申请日：2020-03-06
发明人： Tomoya Hatano , Keita Takahashi , Naotaka Shibata , Hiroko Nomura
IPC分类号： H04B10/03 , H04B10/275 , H04B10/61 , H04B10/032 , H04B10/07 , H04B10/079 , H04J14/02 , H04Q11/00
CPC分类号： H04B10/614 , H04B10/03 , H04B10/275 , H04B10/032 , H04B10/07 , H04B10/07955 , H04J14/0287 , H04J14/0293 , H04Q2011/0081 , H04Q2011/0083
摘要： A communication system of a passive optical communication network includes an optical line terminal (OLT) system including a first OLT, a second OLT, and an OLT control device that controls the first OLT and the second OLT, a plurality of splitters that connect the first OLT and the second OLT with an optical communication path, and an ONU that is connected to each of the splitters with an optical communication path. The splitter distributes and outputs an optical signal transmitted from the OLT system to the ONU connected to the splitter and a succeeding device that is another splitter or the OLT system, and the OLT control device determines a distribution ratio at the splitter, the distribution ratio indicating a ratio between the intensity of the optical signal distributed to the succeeding device and the intensity of the optical signal distributed to the ONU.
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公开(公告)号：US11804897B2
公开(公告)日：2023-10-31
申请号：US17602954
申请日：2020-03-26
发明人： Naotaka Shibata , Keita Takahashi , Tatsuya Fukui , Hideaki Kimura , Hirofumi Yamamoto , Noriyuki Ota , Jun Terada
IPC分类号： H04B10/112 , H04B10/272 , H04J14/02 , H04W72/0453 , H04W72/23
CPC分类号： H04B10/1129 , H04B10/272 , H04J14/02 , H04W72/0453 , H04W72/23
摘要： An uplink transmission band and a downlink transmission band that are allocated to each of a plurality of users are determined based on allocation information indicating allocation of a frequency bandwidth available to each of the plurality of users, and are output as uplink transmission band allocation information and downlink transmission band allocation information, respectively. Based on the downlink transmission band allocation information, downlink signals output from a plurality of wireless control devices toward a plurality of wireless devices for each of the plurality of users, and the uplink transmission band allocation information are multiplexed, and the multiplexed signal is demultiplexed into downlink signals for each of the plurality of users and the uplink transmission band allocation information. Based on the demultiplexed uplink transmission band allocation information, the uplink transmission band allocated to each of the plurality of users is changed, and uplink signals output from the plurality of wireless devices toward the plurality of wireless control devices for each of the plurality of users are multiplexed according to the changed uplink transmission band and then, the multiplexed signal is demultiplexed into the uplink signals for each of the plurality of users.
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公开(公告)号：US11490289B2
公开(公告)日：2022-11-01
申请号：US17261272
申请日：2019-07-19
发明人： Kenji Miyamoto , Keita Takahashi , Hirofumi Yamamoto , Noriyuki Ota , Jun Terada
摘要： Provided is a control apparatus that controls any one or all of a plurality of slave station apparatuses communicating with a terminal apparatus, a plurality of master station apparatuses that control the slave station apparatuses, and a transfer apparatus that transfers data transmitted and received between the master station apparatuses and the slave station apparatuses, the control apparatus including an information acquisition unit that acquires information regarding traffic of the data transmitted and received between the master station apparatuses and the slave station apparatuses, and a switching control unit that performs, on the basis of the information regarding the traffic acquired by the information acquisition unit, switching-control of an assignment relationship between the master station apparatus and the slave station apparatus and switching-control of a transfer path of data between the master station apparatus and the slave station apparatus.
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公开(公告)号：US20210344381A1
公开(公告)日：2021-11-04
申请号：US17261814
申请日：2019-07-23
发明人： Kenji Miyamoto , Keita Takahashi , Hirofumi Yamamoto , Noriyuki Ota , Jun TERADA
摘要： A relay device for relaying communications between a plurality of radio devices that perform radio communications with a terminal and a radio control apparatus that controls the plurality of radio devices, the relay device including a plurality of signal combination units that are each provided for one of functional splitting points between the plurality of radio devices and the radio control apparatus, and are each configured to convert signal data transmitted from one of the plurality of radio devices based on a signal format in accordance with the one of the functional splitting points, and transmit the converted signal data to the radio control apparatus, and a signal switching unit configured to output the signal data transmitted from the one of the plurality of radio devices, to one of the plurality of signal combination units supporting one of the functional splitting points that corresponds to the one of the plurality of radio devices.
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