Patents by Inventor Mitsuru Mochizuki
Mitsuru Mochizuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10348422Abstract: A signal is transmitted and received between a base station device and a communication terminal device that are included in a communication system, through a multi-element antenna including a plurality of antenna elements. At least one of the base station device and the communication terminal device includes a PHY processing unit that is a calibration unit that performs calibration of phases and amplitudes of beams formed by the antenna elements when the signal is transmitted and received. The PHY processing unit obtains a correction value for the phases and the amplitudes of the beams in the respective antenna elements so that the phases and the amplitudes of the beams are identical among the antenna elements, and performs the calibration based on the obtained correction value.Type: GrantFiled: April 6, 2016Date of Patent: July 9, 2019Assignee: Mitsubishi Electric CorporationInventors: Hideki Morishige, Masayuki Nakazawa, Mitsuru Mochizuki, Yoshitaka Hara, Kuniyuki Suzuki
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Patent number: 10334451Abstract: A communication system is provided that, if a large number of small cells are installed, is capable of configuring an operation suitable for small cells through simple operation and administration. If a small cell installed in Step ST1401 judges in Step ST1403 that a coverage macro cell, which includes the small cell in the coverage of the coverage macro cell, is present as a result of neighbor cell search in Step ST1402, notifies the coverage macro cell and another neighbor cell of its own capability in Steps ST1404 and 1405. The coverage macro cell selects a configuration parameter suitable for the capability of the small cell in Step ST1406 and notifies the small cell in Step ST1407. The small cell recognizes an operation mode configured by the coverage macro cell from the configuration parameter notified from the coverage macro cell, and then, starts operating in the operation mode.Type: GrantFiled: December 14, 2017Date of Patent: June 25, 2019Assignee: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda, Shinsuke Uga, Noriyuki Fukui
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Patent number: 10327128Abstract: A communication system is provided that can improve the communication capability of a communication terminal device in the case where a large number of small cells in addition to a macro cell are installed and operated. A communication terminal device (UE) is connected with a macro cell configured by a MeNB and a small cell configured by a SeNB, so that dual connectivity is performed. When receiving information for small cells, for example, emergency information from a CBC via an MME, at least one cell of the macro cell and the small cell notifies the communication terminal device connected with the at least one cell of the information for small cells.Type: GrantFiled: October 3, 2018Date of Patent: June 18, 2019Assignee: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Kuniyuki Suzuki, Futoshi Katada, Hirochika Hiraki
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Publication number: 20190166551Abstract: An object of the present invention is to provide a communication system capable of preventing a base station device from being occupied by specific communication terminal devices and preventing a situation in which the base station device cannot accommodate other communication terminal devices. In the present invention, in Step ST1403, a HeNB_A notifies UEs being served thereby of the MTCD restriction information indicating the operation of restricting MTCDs. Among the UEs that have received the MTCD restriction information in Step ST1404, an MTCD operates in accordance with the MTCD restriction information. Specifically, in Step ST1406, the MTCD judges whether or not the MTCD can select, as a suitable cell, a cell judged to satisfy cell selection criteria in Step ST1402. In a case of judging that the cell can be selected, the MTCD selects the cell as a suitable cell in Step ST1407.Type: ApplicationFiled: January 15, 2019Publication date: May 30, 2019Applicant: Mitsubishi Electric CorporationInventors: Miho MAEDA, Mitsuru MOCHIZUKI, Takayuki NONAMI
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Publication number: 20190155243Abstract: A program comparing device that compares programs described by ladder diagrams includes: a logical expression converting unit configured to convert a ladder circuit of the program into a logical expression, in units of the ladder circuit; an order converting unit configured to rearrange an order of variables of the logical expression of at least one ladder circuit, of two of the ladder circuits that are comparison targets, so as not to change a result of the logical expression; and a comparing unit configured to compare the logical expression of the one ladder circuit after the order of the variables has been rearranged, with a logical expression of another ladder circuit of the two of the ladder circuits, and judge whether or not they match.Type: ApplicationFiled: November 15, 2018Publication date: May 23, 2019Inventors: Yasuyuki INO, Mitsuru MOCHIZUKI
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Publication number: 20190150011Abstract: Provided is a communication system capable of suppressing, under communication environment including a plurality of cells, degradation in communication quality and decrease in communication rate and communication capacity due to interference from the other cells. Each of the cells includes a plurality of antenna elements, and performs radio communication with a communication terminal device through the antenna elements. Each of the cells notifies the other cells of settings for measuring channel information on a channel for performing radio communication of its own cell. Each of the cells may notify a communication terminal device being served thereby of the settings for measuring the channel information of its own cell. Here, the communication terminal device measures the channel information based on the settings notified from each of the cells, and reports a result of the measured channel information to a corresponding one of the cells when the result satisfies a predetermined reporting condition.Type: ApplicationFiled: May 8, 2017Publication date: May 16, 2019Applicant: Mitsubishi Electric CorporationInventors: Hiroyuki SHOJI, Toshiki TANAKA, Mitsuru MOCHIZUKI, Kuniyuki SUZUKI
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Publication number: 20190132833Abstract: In a communications system which complies with LTE including a base station which transmits data by using an OFDM (Orthogonal Frequency Division Multiplexing) method as a downlink access method, and a mobile terminal, in a case in which an uplink scheduling request signal is transmitted by using an S-RACH when an Ack/Nack signal is being transmitted by using an Ack/Nack exclusive channel, the transmission of the Ack/Nack signal is stopped while the uplink scheduling request signal is transmitted.Type: ApplicationFiled: November 29, 2018Publication date: May 2, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Miho MAEDA, Mitsuru MOCHIZUKI, Keiko TADA, Yasushi IWANE
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Publication number: 20190123871Abstract: A mobile communication system includes a plurality of eNBs that perform radio communication with an UE and an MCE that controls the eNBs. The MCE indicates an MBSFN subframe (MCE) serving as radio resources that transmit a reference signal for power measurement to the UE less frequently than normal to the eNB, the eNB, in addition to the MBSFN subframe (MCE) indicated by the MCE, designates the MBSFN subframe (eNB) serving as the radio resources that transmit a reference signal to the UE less frequently than normal, and in the MBSFN subframe (MCE) and the MBSFN subframe (eNB) the reference signal is transmitted to the UE. In this manner, the reference signal for measuring a power can be transmitted less frequently than normal, and a power consumption of the infrastructure can be reduced.Type: ApplicationFiled: December 11, 2018Publication date: April 25, 2019Applicant: Mitsubishi Electric CorporationInventors: Miho Maeda, Mitsuru Mochizuki
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Patent number: 10268764Abstract: A ladder program editing device extracts a ladder circuit satisfying a search condition for searching a ladder program based on the search condition designated by a user and a network comment associated with the extracted ladder circuit. When the extracted ladder circuit is displayed, the network comment extracted together is displayed on a screen in a form associated with the ladder circuit.Type: GrantFiled: June 17, 2016Date of Patent: April 23, 2019Assignee: FANUC CORPORATIONInventors: Toshiyuki Matsuo, Mitsuru Mochizuki
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Publication number: 20190116580Abstract: A cell2 configured by only a DL CC2 being a resource for downlink is configured. The cell2 does not include a resource for uplink, that is, a UL CC to be associated with the DL CC2 by a DL/UL link. The link information indicating the above is notified a communication terminal device by a base station device using the DL CC2. A DL CC1 and a UL CC1 constitute a cell1. The downlink communication from the base station device to the communication terminal device is performed using the cell1 and the cell2, and the uplink communication from the communication terminal device to the base station device is performed using the cell1.Type: ApplicationFiled: December 21, 2018Publication date: April 18, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Miho Maeda, Yasushi Iwane, Takayuki Nonami
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Patent number: 10243566Abstract: Provided is a ladder program retrieval device that includes: search condition specification unit for specifying, as search conditions, a plurality of signals and a logical operation relationship between any two signals included in the plurality of signals; search signal presence determination unit for determining, for each of the plurality of ladder circuits included in the ladder program, whether the ladder circuit includes all of the plurality of signals specified in the search conditions; and search logic presence determination unit for determining, for each of the ladder circuits determined by the search signal presence determination unit to include all of the signals specified in the search conditions, whether or not the ladder circuit includes the logical operation relationship.Type: GrantFiled: December 18, 2015Date of Patent: March 26, 2019Assignee: FANUC CORPORATIONInventor: Mitsuru Mochizuki
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Publication number: 20190090152Abstract: In a communication system, an eNB and a UE transmit and receive a UE monitoring message for confirming the state of the UE in a predetermined UE monitoring period. For example, in UE monitoring periods, a UE monitoring procedure is performed, so that the UE transmits the UE monitoring message to the eNB. Upon receipt of the UE monitoring message, the eNB transmits delivery confirmation information to the UE. The UE monitoring period is set as, for example, a period shorter than a TAU period. This allows the UE monitoring process to confirm the state of the UE even if the TAU period is lengthened. The eNB may transmit the UE monitoring message to the UE.Type: ApplicationFiled: November 20, 2018Publication date: March 21, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Miho Maeda, Shinsuke Uga
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Publication number: 20190075472Abstract: A communication system of the present invention includes a user equipment (UE), and a plurality of cells that perform communication with the UE. The plurality of cells include a macro cell having a relatively-wide-range coverage, and a plurality of small cells having a relatively-narrow-range coverage. The plurality of small cells are connected to a concentrator. The concentrator selects the small cell to which the UE is to be connected, from among a plurality of small cells, based on the flow of at least either one of the received data that each small cell receives from the UE and the transmission data that each small cell transmits to an MME and an S-GW.Type: ApplicationFiled: November 7, 2018Publication date: March 7, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Fusako TAKAYANAGI, Etsuko HOKAN, Taisei SUEMITSU, Miho MAEDA, Mitsuru MOCHIZUKI, Takayuki NONAMI
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Patent number: 10200976Abstract: A cell2 configured by only a DL CC2 being a resource for downlink is configured. The cell2 does not include a resource for uplink, that is, a UL CC to be associated with the DL CC2 by a DL/UL link. The link information indicating the above is notified a communication terminal device by a base station device using the DL CC2. A DL CC1 and a UL CC1 constitute a cell1. The downlink communication from the base station device to the communication terminal device is performed using the cell1 and the cell2, and the uplink communication from the communication terminal device to the base station device is performed using the cell1.Type: GrantFiled: April 18, 2018Date of Patent: February 5, 2019Assignee: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami
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Publication number: 20190037382Abstract: A communication system is provided that can improve the communication capability of a communication terminal device in the case where a large number of small cells in addition to a macro cell are installed and operated. A communication terminal device (UE) is connected with a macro cell configured by a MeNB and a small cell configured by a SeNB, so that dual connectivity is performed. When receiving information for small cells, for example, emergency information from a CBC via an MME, at least one cell of the macro cell and the small cell notifies the communication terminal device connected with the at least one cell of the information for small cells.Type: ApplicationFiled: October 3, 2018Publication date: January 31, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Kuniyuki Suzuki, Futoshi Katada, Hirochika Hiraki
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Publication number: 20190036660Abstract: The present invention relates to a mobile communication system having a coordinated communication mode in which radio communication is performed between a user equipment and a plurality of base stations in a coordinated manner and an uncoordinated communication mode in which radio communication is performed between a user equipment and a base station without coordinating with another base station, in which radio communication is performed by selectively using any of the coordinated communication mode and the uncoordinated communication mode.Type: ApplicationFiled: September 20, 2018Publication date: January 31, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Mitsuru MOCHIZUKI, Miho MAEDA, Taiga SAEGUSA, Yasushi IWANE
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Patent number: 10193672Abstract: A mobile communication system includes a plurality of eNBs that perform radio communication with an UE and an MCE that controls the eNBs. The MCE indicates an MBSFN subframe (MCE) serving as radio resources that transmit a reference signal for power measurement to the UE less frequently than normal to the eNB, the eNB, in addition to the MBSFN subframe (MCE) indicated by the MCE, designates the MBSFN subframe (eNB) serving as the radio resources that transmit a reference signal to the UE less frequently than normal, and in the MBSFN subframe (MCE) and the MBSFN subframe (eNB) the reference signal is transmitted to the UE. In this manner, the reference signal for measuring a power can be transmitted less frequently than normal, and a power consumption of the infrastructure can be reduced.Type: GrantFiled: November 12, 2014Date of Patent: January 29, 2019Assignee: Mitsubishi Electric CorporationInventors: Miho Maeda, Mitsuru Mochizuki
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Publication number: 20190028257Abstract: The present invention has an object to provide a communication system capable of minimizing effects due to a delay among a plurality of base station devices as much as possible in scheduling for communication with a terminal device in cooperation among the plurality of base station devices. Cells1 to 3 can each perform scheduling without using information for scheduling notified from one or a plurality of cells among pieces of information for scheduling notified from other cells. For example, in a case where an interface between the cell1 and cell3 has a large delay amount, the cell1 performs scheduling without using information S13 notified to the cell1 by the cell3, and the cell3 performs scheduling without using information S11 notified to the cell3 by the cell1.Type: ApplicationFiled: January 2, 2018Publication date: January 24, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda
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Publication number: 20190021085Abstract: A communication system capable of a stable communication operation between a base station device and a communication terminal device. A UE is configured to communicate with an MeNB directly or through a SeNB. The UE is set to transmit, to the MeNB and the SeNB, transmission data addressed to the MeNB when an amount of the transmission data exceeds a predetermined threshold. The UE is set to transmit the transmission data not to the SeNB but to the MeNB when the amount is smaller than or equal to the threshold. The threshold is changed so that the transmission data is transmitted to the MeNB and the SeNB, when the SeNB is set to communicate with the UE with radio resources periodically allocated and the amount of the transmission data is smaller than or equal to the threshold.Type: ApplicationFiled: January 27, 2017Publication date: January 17, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Noriyuki FUKUI
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Patent number: 10165558Abstract: A data communication method implemented by a communication system including transmitting data by a base station using an OFDM (Orthogonal Frequency Division Multiplexing) method as a downlink access method, transmitting to the base station, by a mobile terminal, a response signal in accordance with a result of reception of the data transmitted from the base station, transmitting to the base station, by the mobile terminal, a scheduling request signal to make a request for allocation of radio resources before transmitting data to the base station, and transmitting the response signal to the base station, a scheduling request signal to the base station, and a control process of, when a transmission timing of the response signal transmission process coincides with that of the scheduling request signal transmission process, allowing a radio resource for transmission of the scheduling request signal to be shared with transmission of the response signal.Type: GrantFiled: March 16, 2017Date of Patent: December 25, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Miho Maeda, Mitsuru Mochizuki, Keiko Tada, Yasushi Iwane