Patents by Inventor Akihito Hanaki

Akihito Hanaki 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).

  • Publication number: 20220304048
    Abstract: A terminal including: a reception unit configured to receive, from a base station apparatus, information instructing not to perform a random access procedure even when an event that triggers the random access procedure occurs; and a control unit configured to determine not to perform the random access procedure when the event occurs based on the information.
    Type: Application
    Filed: August 14, 2019
    Publication date: September 22, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kouhei Harada, Akihito Hanaki
  • Publication number: 20220295331
    Abstract: A terminal includes a reception unit that receives, from a base station, a message for requesting to report a terminal capability, a control unit that configures information for reporting a parameter associated with a codebook based on information for indicating a range of the parameter associated with the codebook included in the message for requesting the report of the terminal capability, and that includes, in a message for reporting the terminal capability, the information for reporting the parameter associated with the codebook, and a transmission unit that transmits the message for reporting the terminal capability to the base station.
    Type: Application
    Filed: August 8, 2019
    Publication date: September 15, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Akihito Hanaki
  • Publication number: 20220210852
    Abstract: A UE determines whether or not a gNB different from an eNB to which the UE is connected retains related information indicating a situation of the UE. The UE transmits a connection request with the gNB to the gNB even in a case where the gNB does not retain the related information.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 30, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki
  • Publication number: 20220201570
    Abstract: A user apparatus is provided. The user apparatus includes a control unit configured to determine, when a predetermined operation is triggered in a case of a predetermined-condition-based handover having been configured, which of an operation of the predetermined-condition-based handover or the predetermined operation is to be given priority. The control unit stops or suspends an operation that has not been given the priority.
    Type: Application
    Filed: May 1, 2019
    Publication date: June 23, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Naoya Murata, Tooru Uchino, Akihito Hanaki
  • Publication number: 20220183096
    Abstract: A user equipment is disclosed including a transmitting unit; a receiving unit; and a control unit. The control unit starts connection to a second node different from a first node to which the user equipment is connected, in response to transmission, to the second node, of a connection request to the second node by the transmitting unit, or reception of the connection request from the second node by the receiving unit.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 9, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki, Hiroshi Ou, Naoya Murata
  • Publication number: 20220182983
    Abstract: A user equipment includes a receiving unit configured to receive, from a base station apparatus, information designating a Bandwidth Part (BWP) of a cell, a control unit configured to configure a BWP to be activated, based on a parameter dedicated to the user equipment included in the information, when: the cell is a Special Cell (SpCell) and a configuration by a Radio Resource Control (RRC) is executed; or the cell is a Secondary Cell (SCell) and a Media Access Control (MAC) layer is activated, and a communication unit configured to communicate with the base station apparatus by using the BWP to be activated, wherein the parameter is configured in information for designating the BWP of the cell, irrespective of the number of BWPs configured for the cell.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 9, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Akihito Hanaki
  • Publication number: 20220103240
    Abstract: A user equipment includes a transmission unit that transmits, to a base station, information indicating a specific band combination supported by the user equipment for carrier aggregation and combinations of maximum numbers of Multiple-input and multiple-output (MIMO) layers to be applied to respective component carriers of frequency bands included in the specific band combination, the combinations of the maximum numbers of MIMO layers being supported by the user equipment; and a control unit that applies a default value as the maximum numbers of MIMO layers to be applied, by the user equipment, to the respective component carriers of the frequency bands included in the specific band combination, when a signal indicating the maximum numbers of MIMO layers to be applied, by the base station, to the respective component carriers of the frequency bands included in the specific band combination is not received from the base station.
    Type: Application
    Filed: February 25, 2019
    Publication date: March 31, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Akihito Hanaki, Hidekazu Shimodaira
  • Patent number: 11246058
    Abstract: UE (200) performs Asymmetric ROHC that applies header compression in a packet data convergence protocol layer to either an uplink or a downlink. The UE (200) includes a data transmitting-receiving unit (220) that receives from eNB a support notification indicating that the Asymmetric ROHC is supported and a capability notifying unit (240) that notifies, when the data transmitting-receiving unit (220) receives the support notification, the eNB of information to be used for setting the Asymmetric ROHC by including a profile of the Asymmetric ROHC in capability information of the UE (200).
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: February 8, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Wuri Andarmawanti Hapsari, Hideaki Takahashi, Akihito Hanaki
  • Publication number: 20220014236
    Abstract: An FHM for relaying communications between a signal processing device and a plurality of radio devices comprises: a storage unit that stores a table in which device identification information of each of the plurality of radio devices is associated with beam identification information assigned to the radio device; a scheduling information reception unit that receives, from the signal processing device, scheduling information of a user terminal performing radio communications with the plurality of radio devices; a determination unit that acquires from the table the device identification information associated with the beam identification information of uplink included in the scheduling information and then determines from the acquired device identification information the radio device in charge of the user terminal; and a transmission unit that transmits to the signal processing device an uplink signal transmitted from the determined radio device.
    Type: Application
    Filed: November 9, 2018
    Publication date: January 13, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Kosugi, Tatsuro Yajima, Takuto Arai, Yuta Sagae, Akihito Hanaki, Hidekazu Shimodaira, Masahiro Fujii, Yoshiaki Ofuji
  • Publication number: 20210235527
    Abstract: UE (200) executes dual connectivity in which it simultaneously connects to a radio base station and other radio base station. The UE (200) includes a transmitting unit (210) that transmits to the radio base station and the other radio base station uplink transmission related information indicating an uplink transmission state, and a control unit (230) that controls transmission or stop of transmission of the uplink transmission related information of a predetermined type.
    Type: Application
    Filed: May 9, 2018
    Publication date: July 29, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki
  • Publication number: 20210068103
    Abstract: A base station apparatus is a second base station apparatus for communicating with a first base station apparatus, the second base station apparatus including a receiving unit that receives, from the first base station apparatus, resource coordination information used to allocate a radio resource; a control unit that allocates a radio resource based on the resource coordination information; and a transmitting unit that transmits resource coordination information to the first base station apparatus, wherein the resource coordination information includes information indicative of at least one of a frequency domain and a time domain indicating a location of the radio resource.
    Type: Application
    Filed: January 7, 2019
    Publication date: March 4, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Teruaki Toeda, Anil Umesh, Akihito Hanaki
  • Patent number: 10893530
    Abstract: 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: Grant
    Filed: November 1, 2017
    Date of Patent: January 12, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki, Kenichiro Aoyagi, Wuri Andarmawanti Hapsari
  • Publication number: 20200396740
    Abstract: Disclosed is a second base station device communicating with a first base station device. The second base station device includes a receiver configured to receive, from the first base station device, information for limiting radio resource allocation; a controller configured to allocate a radio resource based on the received information for limiting radio resource allocation; and a transmitter configured to transmit information for limiting radio resource allocation to the first base station device. The information for limiting radio resource allocation includes information indicating at least one of a frequency domain and a time domain indicating a location of a radio resource.
    Type: Application
    Filed: November 17, 2017
    Publication date: December 17, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Teruaki Toeda, Anil Umesh, Hiromasa Umeda, Yousuke Sano, Akihito Hanaki
  • Publication number: 20200389263
    Abstract: A communication apparatus used as a first communication apparatus in a radio communication system including the first communication apparatus and a second communication apparatus, comprising a communication unit configured to receive a retransmitted packet addressed to a user equipment from the second communication apparatus, and to transmit the retransmitted packet to the user equipment, the communication unit transmitting delivery status information including a sequence number of the retransmitted packet to the second communication apparatus.
    Type: Application
    Filed: November 17, 2017
    Publication date: December 10, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Teruaki Toeda, Anil Umesh, Tooru Uchino, Akihito Hanaki, Hiroshi Ou
  • Publication number: 20200374893
    Abstract: A first communication apparatus includes a reception unit configured to receive information about uplink quality of user equipment from a second communication apparatus, when the user equipment communicates with both the first communication apparatus and the second communication apparatus; and a control unit configured to control uplink data transmission by the user equipment based on the information about uplink quality.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 26, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Teruaki Toeda, Tooru Uchino, Akihito Hanaki, Naoya Murata
  • Publication number: 20200236658
    Abstract: In one aspect of the present invention, a first base station for communicating with user equipment together with a second base station according to dual connectivity includes a data storage unit configured to store data to be transmitted from the first base station to the user equipment; a reception unit configured to receive from the second base station information indicating whether data to be transmitted from the second base station to the user equipment exist; and a state control unit configured to, when information indicating that data to be transmitted from the second base station to the user equipment exist is received, prevent the user equipment from releasing a radio resource or transitioning to a discontinuous reception state, even if the amount of to-be-transmitted data stored in the data storage unit is less than or equal to a predetermined threshold.
    Type: Application
    Filed: November 17, 2017
    Publication date: July 23, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Teruaki Toeda, Anil Umesh, Tooru Uchino, Akihito Hanaki, Hiroshi Ou
  • Publication number: 20200022023
    Abstract: UE (200) performs Asymmetric ROHC that applies header compression in a packet data convergence protocol layer to either an uplink or a downlink. The UE (200) includes a data transmitting-receiving unit (220) that receives from eNB a support notification indicating that the Asymmetric ROHC is supported and a capability notifying unit (240) that notifies, when the data transmitting-receiving unit (220) receives the support notification, the eNB of information to be used for setting the Asymmetric ROHC by including a profile of the Asymmetric ROHC in capability information of the UE (200).
    Type: Application
    Filed: March 14, 2017
    Publication date: January 16, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Wuri Andarmawanti Hapsari, Hideaki Takahashi, Akihito Hanaki
  • Patent number: 10171544
    Abstract: When a packet in which a “Static part” is changed is detected in a session established in a bearer, it is possible to prevent the packet from being discarded. A radio base station (eNB) according to the present invention includes a communication control unit (13) configured to control communication via a session (an RTP session or an RTCP session) with a mobile station (UE). The communication control unit (13) is configured such that, when a change in a “Static part” in a header of a received packet is detected, even if adding a new session to transmit the packet makes the number of sessions established in a bearer (#1) exceed a capability of the radio base station (eNB) or the mobile station (UE), the communication control unit (13) transmits the packet via the new session.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: January 1, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Akihito Hanaki
  • Patent number: 10172036
    Abstract: There is provided user equipment for communicating with a base station in a mobile communication system including the base station and the user equipment, the user equipment including a PDCP layer processor provided with a storage unit that receives and stores a plurality of acknowledgement signals to be transmitted to the base station; and an RLC layer processor that transmits, to the PDCP layer processor, a signal transmission grant signal that indicates that transmission of an uplink signal is allowed, wherein, upon receiving the signal transmission grant signal, the PDCP layer processor transmits, to the RLC layer processor, an acknowledgement signal that is received most recently among the plurality of acknowledgement signals.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: January 1, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Tooru Uchino, Wuri Andarmawanti Hapsari, Akihito Hanaki
  • Publication number: 20180132133
    Abstract: There is provided user equipment for communicating with a base station in a mobile communication system including the base station and the user equipment, the user equipment including a PDCP layer processor provided with a storage unit that receives and stores a plurality of acknowledgement signals to be transmitted to the base station; and an RLC layer processor that transmits, to the PDCP layer processor, a signal transmission grant signal that indicates that transmission of an uplink signal is allowed, wherein, upon receiving the signal transmission grant signal, the PDCP layer processor transmits, to the RLC layer processor, an acknowledgement signal that is received most recently among the plurality of acknowledgement signals.
    Type: Application
    Filed: May 18, 2016
    Publication date: May 10, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Tooru Uchino, Wuri Andarmawanti Hapsari, Akihito Hanaki