Patents by Inventor Kenichiro Aoyagi
Kenichiro Aoyagi 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: 11974220Abstract: A network node is a first network node in a VPLMN (Visited Public land mobile network), the network node including a receiving unit configured to receive information relating to network selection, from a second network node in an HPLMN (Home Public land mobile network); a transmitting unit configured to transmit the information relating to network selection, to a user equipment; and a control unit configured to transmit, to the second network node, a response indicating that the user equipment was unable to receive the information relating to network selection, when a response, with respect to the information relating to network selection transmitted to the user equipment, is not received from the user equipment.Type: GrantFiled: January 8, 2020Date of Patent: April 30, 2024Assignee: NTT DOCOMO, INC.Inventors: Hiroshi Ishikawa, Shinya Takeda, Maoki Hikosaka, Atsushi Minokuchi, Kenichiro Aoyagi, Ban Al-Bakri
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Patent number: 11956714Abstract: A user equipment includes a receiving unit configured to receive, from a network node in a VPLMN (Visited Public land mobile network), information indicating a PLMN to be prioritized and information indicating a trigger of PLMN selection; and a control unit configured to execute the PLMN selection, based on the information indicating the PLMN to be prioritized and the information indicating the trigger of the PLMN selection.Type: GrantFiled: January 8, 2020Date of Patent: April 9, 2024Assignee: NTT DOCOMO, INC.Inventors: Shinya Takeda, Hiroshi Ishikawa, Maoki Hikosaka, Kenichiro Aoyagi, Atsushi Minokuchi, Ban Al-Bakri
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Patent number: 11943700Abstract: In 5G cell (230) of 5G system (200), upon detecting that access to the 5G system (200) is barred, the 5G system (200) is congested, 5G core network (220) of the 5G system (200) does not support IMS-type communication service, or fallback to 4G system (300) is instructed, UE (100) selects 4G cell (330) of the 4G system (300) as a target cell for connection. The UE (100) transmits a connection request signal for the IMS-type communication service to the target cell for connection.Type: GrantFiled: September 12, 2018Date of Patent: March 26, 2024Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Hiroshi Ishikawa, Atsushi Minokuchi, Shinya Takeda
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Patent number: 11864080Abstract: A disclosed user device includes a receiver configured to receive emergency information from a network; and a control unit configured to change a process of detecting whether first emergency information is duplicated with second emergency information upon receiving, by the receiver, the second emergency information after the first emergency information, based on the first emergency information.Type: GrantFiled: October 23, 2019Date of Patent: January 2, 2024Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Atsushi Minokuchi, Hiroshi Ishikawa, Shinya Takeda, Maoki Hikosaka
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Patent number: 11778444Abstract: A network node for connecting to a plurality of base station devices, the plurality of base station devices each being connected to one or a plurality of core networks belonging to different systems, the network node including a controller that controls delivery of emergency information identical to delivery of emergency information activated by a first core network of the plurality of core networks so that the delivery of the emergency information identical to the delivery of the emergency information activated by the first core network of the plurality of core networks is prevented from being activated by a core network other than the first core network; and a transmitter that transmits a message for a base station device to deliver emergency information.Type: GrantFiled: April 2, 2019Date of Patent: October 3, 2023Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Hiroshi Ishikawa, Shinya Takeda
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Patent number: 11683675Abstract: User equipment is capable of connecting to a first core network and a second core network through a base station apparatus. The user equipment includes a controller that connects to, upon selecting or visiting a cell of a base station apparatus that does not support the first core network while connecting to the first core network or visiting the first core network, the second core network through a connection in the cell.Type: GrantFiled: May 23, 2019Date of Patent: June 20, 2023Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Atsushi Minokuchi
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Publication number: 20220279446Abstract: An exchange includes: a reception unit that receives, from a gateway, a message indicating presence of an incoming call to a terminal; a control unit that adjusts the time for transmitting paging corresponding to the message to a base station; and a transmission unit that transmits the paging to the base station at the adjusted time.Type: ApplicationFiled: August 30, 2019Publication date: September 1, 2022Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Yuuya Miyazaki, Motohiro Abe
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Publication number: 20220095212Abstract: A user equipment includes a receiving unit configured to receive, from a network node in a VPLMN (Visited Public land mobile network), information indicating a PLMN to be prioritized and information indicating a trigger of PLMN selection; and a control unit configured to execute the PLMN selection, based on the information indicating the PLMN to be prioritized and the information indicating the trigger of the PLMN selection.Type: ApplicationFiled: January 8, 2020Publication date: March 24, 2022Applicant: NTT DOCOMO, INC.Inventors: Shinya Takeda, Hiroshi Ishikawa, Maoki Hikosaka, Kenichiro Aoyagi, Atsushi Minokuchi, Ban Al-Bakri
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Publication number: 20220095213Abstract: A network node is a first network node in a VPLMN (Visited Public land mobile network), the network node including a receiving unit configured to receive information relating to network selection, from a second network node in an HPLMN (Home Public land mobile network); a transmitting unit configured to transmit the information relating to network selection, to a user equipment; and a control unit configured to transmit, to the second network node, a response indicating that the user equipment was unable to receive the information relating to network selection, when a response, with respect to the information relating to network selection transmitted to the user equipment, is not received from the user equipment.Type: ApplicationFiled: January 8, 2020Publication date: March 24, 2022Applicant: NTT DOCOMO, INC.Inventors: Hiroshi Ishikawa, Shinya Takeda, Maoki Hikosaka, Atsushi Minokuchi, Kenichiro Aoyagi, Ban Al-Bakri
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Publication number: 20210400458Abstract: A disclosed user device includes a receiver configured to receive emergency information from a network; and a control unit configured to change a process of detecting whether first emergency information is duplicated with second emergency information upon receiving, by the receiver, the second emergency information after the first emergency information, based on the first emergency information.Type: ApplicationFiled: October 23, 2019Publication date: December 23, 2021Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Atsushi Minokuchi, Hiroshi Ishikawa, Shinya Takeda, Maoki Hikosaka
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Publication number: 20210258762Abstract: A network node for connecting to a plurality of base station devices, the plurality of base station devices each being connected to one or a plurality of core networks belonging to different systems, the network node including a controller that controls delivery of emergency information identical to delivery of emergency information activated by a first core network of the plurality of core networks so that the delivery of the emergency information identical to the delivery of the emergency information activated by the first core network of the plurality of core networks is prevented from being activated by a core network other than the first core network; and a transmitter that transmits a message for a base station device to deliver emergency information.Type: ApplicationFiled: April 2, 2019Publication date: August 19, 2021Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Hiroshi Ishikawa, Shinya Takeda
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Publication number: 20210168588Abstract: A UE 200 operates as any one of a plurality of categories according to capability. The UE 200 includes: an attach processing unit 220 that performs attaching to a core network; an operation control unit 230 that causes the UE 200 to operate as a restricted category whose capability is restricted as compared to a normal category; and a category notification unit 240 that notifies the core network of a category in which the UE 200 is operating at the time of the attaching or after the attaching.Type: ApplicationFiled: February 27, 2019Publication date: June 3, 2021Applicant: NTT DOCOMO, INC.Inventors: Motohiro Abe, Kenichiro Aoyagi, Shinya Takeda, Hiroshi Ishikawa, Kazuto Shimizu
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Publication number: 20210120396Abstract: User equipment is capable of connecting to a first core network and a second core network through a base station apparatus. The user equipment includes a controller that connects to, upon selecting or visiting a cell of a base station apparatus that does not support the first core network while connecting to the first core network or visiting the first core network, the second core network through a connection in the cell.Type: ApplicationFiled: May 23, 2019Publication date: April 22, 2021Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Atsushi Minokuchi
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Patent number: 10893530Abstract: Priority control is performed using FPIs. A radio base station eNB according to the present invention includes: a bearer management unit 12 configured to manage FPIs assigned to data flows received from a core network device S-GW via an S1 bearer; and a priority control unit 13 configured to perform priority control over the data flows received from the core network device S-GW via the S1 bearer, in which the bearer management unit 12 establishes a radio bearer with a mobile station UE for each of the FPIs, and the priority control unit 13 transfers each data flow received from the core network device S-GW via the S1 bearer, to the radio bearer corresponding to the FPI assigned to the data flow.Type: GrantFiled: November 1, 2017Date of Patent: January 12, 2021Assignee: NTT DOCOMO, INC.Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki, Kenichiro Aoyagi, Wuri Andarmawanti Hapsari
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Publication number: 20200336979Abstract: In 5G cell (230) of 5G system (200), upon detecting that access to the 5G system (200) is barred, the 5G system (200) is congested, 5G core network (220) of the 5G system (200) does not support IMS-type communication service, or fallback to 4G system (300) is instructed, UE (100) selects 4G cell (330) of the 4G system (300) as a target cell for connection. The UE (100) transmits a connection request signal for the IMS-type communication service to the target cell for connection.Type: ApplicationFiled: September 12, 2018Publication date: October 22, 2020Applicant: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Hiroshi Ishikawa, Atsushi Minokuchi, Shinya Takeda
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Publication number: 20200245180Abstract: 3G system does not retain UE Capability that indicates that UE (50) supports CE Mode, and an LTE system retains the UE Capability. eNB (100B) controls transition of the UE (50) from the 3G system to the LTE system. When the UE (50) transitions to the LTE system, the eNB (100B) transmits UE Capability Enquiry via which the UE Capability of the UE (50) is enquired to the UE (50), and acquires from the UE (50) the UE Capability that includes whether the UE (50) supports the CE Mode.Type: ApplicationFiled: August 15, 2017Publication date: July 30, 2020Applicant: NTT DOCOMO, INC.Inventors: Ryusuke Matsukawa, Masato Taniguchi, Wuri Andarmawanti Hapsari, Kenichiro Aoyagi, Zahid Zaki
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Patent number: 10321384Abstract: A user device that communicates with a network apparatus and in which at least one application is installed. The user device includes a receiver that receives, from the network apparatus, restriction information including a destination identifier for identifying an external network connected to the network apparatus and a barring rate associated with the destination identifier, and a controller that when communication is to be started by the application, controls whether to allow or prevent the communication by the application based on the restriction information.Type: GrantFiled: December 8, 2015Date of Patent: June 11, 2019Assignee: NTT DOCOMO, INC.Inventors: Shinya Takeda, Wuri Andarmawanti Hapsari, Kenichiro Aoyagi, Yasuharu Konishi
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Patent number: 10292090Abstract: An object is to provide a mobile station, a mobile communication system, and a network device that can realize more appropriate call origination control per service as intended by an operator. An MMTEL function unit (120) of a UE (100), based on ssac-BarringForMMTEL-Voice, upon determining that call origination of a VoLTE call is possible, transmits Bearer Request to an NAS function unit (170). The NAS function unit (170), in accordance with the Bearer Request, transmits Service Request to an RRC function unit (190). The RRC function unit (190), in accordance with the Service Request, based on ac-BarringForMO-Data or Tbarring, transmits RRC Connection Request to a mobile communication network (200) without determining a possibility of call origination of the VoLTE call.Type: GrantFiled: September 10, 2014Date of Patent: May 14, 2019Assignee: NTT DOCOMO, INC.Inventors: Atsushi Ueki, Shinya Takeda, Takehiro Ida, Itsuma Tanaka, Wuri Andarmawanti Hapsari, Kenichiro Aoyagi
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Patent number: 10098046Abstract: The communication system according to the present invention includes: a mobile device 300 connectable to an LTE system and a 3G system; and an RNC 210 configured to control mobility of the mobile device 300 between the LTE system and the 3G system. When the mobile device sends the RNC 210 a request for connection to the 3G system instead of the LTE system because the LTE system imposes access restriction to restrict communication performed by the mobile device 300, the mobile device 300 incorporates mobility information in the request for connection, the mobility information indicating that the mobile device hands over from the LTE system. In addition, when acquiring the mobility information from the mobile device 300, the RNC 210 restrains the mobile device 300 from handing over to the LTE system.Type: GrantFiled: August 10, 2011Date of Patent: October 9, 2018Assignee: NTT DOCOMO, INC.Inventors: Kenichiro Aoyagi, Kiminobu Sugano, Yuichiro Nakamura
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Patent number: 10004029Abstract: A mobile station for receiving broadcast information for restriction control from a base station in a network environment shared by a plurality of operators includes a reception unit configured to receive from the base station the broadcast information including restriction control skip information indicating a type of a call which is not subject to restriction control; and a restriction control determination unit configured to identify restriction control skip information corresponding to an operator with which the mobile station registers from the received broadcast information and determine whether to apply the restriction control.Type: GrantFiled: August 6, 2015Date of Patent: June 19, 2018Assignee: NTT DOCOMO, INC.Inventors: Wuri Andarmawanti Hapsari, Kenichiro Aoyagi, Shinya Takeda, Yasuharu Konishi