Patents by Inventor Yasushi Iwane
Yasushi Iwane 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: 10728857Abstract: A mobile terminal 3 judges whether or not the mobile terminal is able to make a transition to a DTX period during Active, and, when judging that the mobile terminal is able to make a transition to a DTX period during Active, notifies a base station 2 to that effect. If the base station 2 judges that the mobile terminal is able to make a transition to a DRX period during Active when triggered by the notification from the mobile terminal 3, the base station temporarily stops supply of electric power to the data transmission processing units and the data reception processing units of the mobile terminal 3.Type: GrantFiled: March 14, 2012Date of Patent: July 28, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Miho Maeda, Mitsuru Mochizuki, Yasushi Iwane, Tetsuya Mishuku, Masaaki Kusano, Ryoichi Fujie, Shigenori Tani, Keiko Tada, Noriyuki Fukui, Michiaki Takano
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Patent number: 10701639Abstract: A mobile terminal 3 judges whether or not the mobile terminal is able to make a transition to a DTX period during Active, and, when judging that the mobile terminal is able to make a transition to a DTX period during Active, notifies a base station 2 to that effect. If the base station 2 judges that the mobile terminal is able to make a transition to a DRX period during Active when triggered by the notification from the mobile terminal 3, the base station temporarily stops supply of electric power to the data transmission processing units and the data reception processing units of the mobile terminal 3.Type: GrantFiled: August 24, 2016Date of Patent: June 30, 2020Assignee: Mitsubishi Electric CorporationInventors: Miho Maeda, Mitsuru Mochizuki, Yasushi Iwane, Tetsuya Mishuku, Masaaki Kusano, Ryoichi Fujie, Shigenori Tani, Keiko Tada, Noriyuki Fukui, Michiaki Takano
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Publication number: 20200187167Abstract: 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: February 19, 2020Publication date: June 11, 2020Applicant: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami
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Publication number: 20200120633Abstract: The present invention has an object to provide a communication system capable of avoiding congestion in downlink communication or uplink communication and a shortage of radio resources arising therefrom. In the present invention, in a communication system including a normal user equipment (normal UE) that performs human to human communication and a machine type communication device (MTCD) that performs machine to machine communication, a base station device transmits a paging message to the normal UE and the MTCD for calling the normal UE and the MTCD. The paging message contains, for example, an equipment identity (UE-ID). A maximum number of equipment identities (UE-IDs) that can be accommodated within this paging message is set individually for the normal UE and the MTCD. Alternatively, the paging message contains a calling indicator in place of the equipment identity of the MTCD (UE-ID of MTCD).Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Miho MAEDA, Yasushi IWANE, Takayuki NONAMI, Taisei SUEMITSU, Yuichi NAKAI
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Patent number: 10609602Abstract: A mobile communication system includes a movable user equipment device, a plurality of base station devices configured to perform radio communication with the user equipment device, and a relay device movably configured to relay radio communications between the user equipment device and the base station devices. In a handover process of switching a base station device to be connected with the relay device from a base station device being a moving source to a base station device being a moving destination along with moving of the relay device, the base station device being a moving source selects the base station device being a moving destination from base station devices other than a base station device that does not have a function supporting the relay device, and performs the handover process such that the relay device is connected to the selected base station device.Type: GrantFiled: February 7, 2017Date of Patent: March 31, 2020Assignee: Mitsubishi Electric CorporationInventors: Miho Maeda, Mitsuru Mochizuki, Shinsuke Uga, Noriyuki Fukui, Yasushi Iwane
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Patent number: 10609685Abstract: 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: July 22, 2019Date of Patent: March 31, 2020Assignee: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami
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Publication number: 20190342863Abstract: 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: July 22, 2019Publication date: November 7, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Miho Maeda, Yasushi Iwane, Takayuki Nonami
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Publication number: 20190297510Abstract: A base station which uses either one of a plurality of component carriers individually or uses an aggregate carrier which is an aggregate of the above-mentioned plurality of component carriers to carry out radio communications with a mobile terminal corresponding to the above-mentioned component carrier and also carry out radio communications with a mobile terminal corresponding to the above-mentioned aggregate carrier is provided. The base station notifies a bandwidth of an aggregate carrier which is an aggregate of all of the above-mentioned component carriers, as a bandwidth which the above-mentioned base station uses, to the mobile terminal corresponding to the above-mentioned aggregate carrier. As a result, while an improvement in the transmission rate is provided according to the aggregate carrier, the base station can also support an operation of a mobile terminal corresponding to a component carrier.Type: ApplicationFiled: May 29, 2019Publication date: September 26, 2019Applicant: Mitsubishi Electric CorporationInventors: Miho MAEDA, Mitsuru MOCHIZUKI, Taiga SAEGUSA, Yasushi IWANE
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Patent number: 10412712Abstract: 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: December 21, 2018Date of Patent: September 10, 2019Assignee: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami
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Publication number: 20190254000Abstract: The present invention has an object to provide a communication system capable of avoiding congestion in downlink communication or uplink communication and a shortage of radio resources arising therefrom. In the present invention, in a communication system including a normal user equipment (normal UE) that performs human to human communication and a machine type communication device (MTCD) that performs machine to machine communication, a base station device transmits a paging message to the normal UE and the MTCD for calling the normal UE and the MTCD. The paging message contains, for example, an equipment identity (UE-ID). A maximum number of equipment identities (UE-IDs) that can be accommodated within this paging message is set individually for the normal UE and the MTCD. Alternatively, the paging message contains a calling indicator in place of the equipment identity of the MTCD (UE-ID of MTCD).Type: ApplicationFiled: April 25, 2019Publication date: August 15, 2019Applicant: Mitsubishi Electric CorporationInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Takayuki Nonami, Taisei Suemitsu, Yuichi Nakai
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Patent number: 10356635Abstract: A base station which uses either one of a plurality of component carriers individually or uses an aggregate carrier which is an aggregate of the above-mentioned plurality of component carriers to carry out radio communications with a mobile terminal corresponding to the above-mentioned component carrier and also carry out radio communications with a mobile terminal corresponding to the above-mentioned aggregate carrier is provided. The base station notifies a bandwidth of an aggregate carrier which is an aggregate of all of the above-mentioned component carriers, as a bandwidth which the above-mentioned base station uses, to the mobile terminal corresponding to the above-mentioned aggregate carrier. As a result, while an improvement in the transmission rate is provided according to the aggregate carrier, the base station can also support an operation of a mobile terminal corresponding to a component carrier.Type: GrantFiled: April 21, 2016Date of Patent: July 16, 2019Assignee: Mitsubishi Electric CorporationInventors: Miho Maeda, Mitsuru Mochizuki, Taiga Saegusa, Yasushi Iwane
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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: 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: 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: 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: 10165482Abstract: A mobile communication system includes a CSG cell which is accessible by a CSG member, a hybrid cell which is the CSG cell where a non-CSG member is also allowed access at the same time, and a mobile terminal which is subscribed as the CSG member and connected to the CSG cell or the hybrid cell as the CSG member. Even in a case in which a subscription time period has expired, the mobile communication system enables the mobile terminal to continue the connection. When the subscription time period for the CSG member expires, in case of the mobile terminal's connection to the CSG cell, the CSG cell initiates a handover, in case of the mobile terminal's connection to the hybrid cell, the hybrid cell changes treatment for the mobile terminal from treating the mobile terminal as the CSG member to treating the mobile terminal as the non-CSG member.Type: GrantFiled: February 14, 2017Date of Patent: December 25, 2018Assignee: Mitsubishi Electric CorporationInventors: Miho Maeda, Mitsuru Mochizuki, Yasushi Iwane, Yuji Kakehi, Masayuki Nakazawa, Taisei Suemitsu
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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
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Publication number: 20180352555Abstract: A mobile communication system capable of easily notifying the interference-related information and avoiding interference in a situation in which a macro cell and local nodes are deployed to coexist. In the system, a macro cell (eNB) notifies, via user equipments (UEs) present in a coverage, HeNBs present in the coverage of the interference-related information related to the interference to a physical resource to be used, for example, a high interference indication (HII) and an overload indicator (OI).Type: ApplicationFiled: July 19, 2018Publication date: December 6, 2018Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Miho Maeda, Yasushi Iwane, Yuji Kakehi, Masayuki Nakazawa, Taisei Suemitsu
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Patent number: 10110356Abstract: 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: GrantFiled: June 8, 2017Date of Patent: October 23, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Mitsuru Mochizuki, Miho Maeda, Taiga Saegusa, Yasushi Iwane
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Publication number: 20180242281Abstract: 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: April 18, 2018Publication date: August 23, 2018Applicant: Mitsubishi Electric CorporatiionInventors: Mitsuru MOCHIZUKI, Miho MAEDA, Yasushi IWANE, Takayuki NONAMI