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).

  • Publication number: 20240422717
    Abstract: A communication system includes: a plurality of positioning signal transmission devices that transmit positioning signals; a positioning signal reception device that receives the positioning signals; and a location calculation device that calculates a location of a terminal to be positioned on the basis of reception results of the positioning signals by the positioning signal reception device, and the plurality of positioning signal transmission devices output integrity assistance data to be used to calculate integrity of a location of the terminal to be positioned, and the location calculation device calculates integrity of a location calculation result of the terminal to be positioned by using the integrity assistance data output from the plurality of positioning signal transmission devices.
    Type: Application
    Filed: November 22, 2022
    Publication date: December 19, 2024
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI, Akinori TAIRA, Takahisa YAMAUCHI
  • Publication number: 20240405925
    Abstract: Provided is a communication system capable of suppressing decrease in a transmission rate. An eNB communicates with a UE using a self-contained subframe. The self-contained subframe includes a downlink signal to be transmitted from the eNB to the UE, and an uplink signal to be transmitted from the UE to the eNB in response to the downlink signal. The uplink signal has a structure including an uplink control signal indicating information for controlling transmission of the uplink signal, and uplink user data to be transmitted before and after the uplink control signal. The eNB notifies the UE of a structure of the uplink signal. The eNB may predetermine scheduling for retransmission to retransmit the downlink signal, before performing initial transmission of the downlink signal.
    Type: Application
    Filed: August 9, 2024
    Publication date: December 5, 2024
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI, Masayuki NAKAZAWA, Fumihiro HASEGAWA
  • Patent number: 12160380
    Abstract: A communication system includes a user apparatus; and base stations respectively configured to wirelessly communicate with the user apparatus. The base stations include a master base station and a secondary base station that configure dual connectivity for the user apparatus. The secondary base station is configured with a grant configuration related to transmission without grant in uplink to the secondary base station.
    Type: Grant
    Filed: June 23, 2023
    Date of Patent: December 3, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Tadahiro Shimoda, Noriyuki Fukui, Fumihiro Hasegawa
  • Patent number: 12160883
    Abstract: 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: Grant
    Filed: February 21, 2023
    Date of Patent: December 3, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Yuji Kakehi, Masayuki Nakazawa, Taisei Suemitsu
  • Publication number: 20240365211
    Abstract: A communication terminal apparatus in a communication system includes a plurality of communication terminal apparatuses including the communication terminal apparatus. The communication terminal apparatus is configured to perform PC5 communication, which is communication via a PC5 interface, with another communication terminal apparatus of the plurality of communication terminal apparatuses. The communication terminal apparatus is configured to configure a validity time limit for a resource of the PC5 communication.
    Type: Application
    Filed: July 2, 2024
    Publication date: October 31, 2024
    Inventors: Mitsuru MOCHIZUKI, Tadahiro SHIMODA, Fumiki HASEGAWA
  • Patent number: 12132681
    Abstract: A communication system that can reduce latency while preventing reduction in a transmission rate. An eNB communicates with a UE #1 using a self-contained subframe including a first downlink signal (DL #1) and a first uplink signal (UL #1), and with a UE #2 using a self-contained subframe including a second downlink signal (DL #2) and a second uplink signal (UL #2). The self-contained subframe for the UE #1 includes a first gap duration (Gap #1) during which neither the DL #1 nor the UL #1 is transmitted, between transmission durations of the DL #1 and the UL #1. The self-contained subframe for the UE #2 includes a second gap duration (Gap #2) during which neither the DL #2 nor the UL #2 is transmitted, between transmission durations of the DL #2 and the UL #2. The Gaps #1 and #2 are set to each UE.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: October 29, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Tadahiro Shimoda, Noriyuki Fukui
  • Patent number: 12119961
    Abstract: A user apparatus in a communication system includes: a plurality of user apparatuses each of which is configured to transmit a sounding reference signal (SRS); and a base station configured to wirelessly communicate with the plurality of the user apparatuses. The user apparatus receives, from the base station, configuration information related to a wireless resource of the sounding reference signal allocated to another user apparatus.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: October 15, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadahiro Shimoda, Mitsuru Mochizuki, Fumihiro Hasegawa, Noriyuki Fukui
  • Patent number: 12114365
    Abstract: A radio communication technology for enabling high reliability, a high transmission rate, and low power consumption is provided. A communication system includes a communication terminal and a base station. The base station includes a plurality of transmitter-receivers configured to perform radio communication with the communication terminal. The base station is configured to perform radio communication with the communication terminal by using a part or all of the plurality of transmitter-receivers. The communication terminal receives a downlink synchronization signal from at least one first transmitter-receiver to be newly connected, and establishes downlink synchronization with the at least one first transmitter-receiver by using the downlink synchronization signal. The communication terminal establishes uplink synchronization with the at least one first transmitter-receiver through random access processing.
    Type: Grant
    Filed: February 2, 2023
    Date of Patent: October 8, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Tadahiro Shimoda, Noriyuki Fukui, Daichi Uchino
  • Publication number: 20240324067
    Abstract: Provided is a technology that can increase the robustness of a communication system. A communication system includes: a communication terminal; a first network configured to perform radio communication with the communication terminal; and at least one second network configured to perform communication with the first network. When the first network determines to release connection between the first network and the communication terminal (ST1401) with the communication terminal being connected to the first network and to the at least one second network through the first network, the communication terminal or the first network instructs the at least one second network to release the connection with the communication terminal (ST1405).
    Type: Application
    Filed: June 5, 2024
    Publication date: September 26, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI
  • Patent number: 12081369
    Abstract: A user apparatus in a communication system includes: a plurality of user apparatuses each of which is configured to transmit a sounding reference signal (SRS); and a base station configured to wirelessly communicate with the plurality of the user apparatuses. The user apparatus receives, from the base station, configuration information related to a wireless resource of the sounding reference signal allocated to another user apparatus.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: September 3, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadahiro Shimoda, Mitsuru Mochizuki, Fumihiro Hasegawa, Noriyuki Fukui
  • Patent number: 12069757
    Abstract: A communication system includes a user apparatus; and a base station including a distributed unit (DU) configured to wirelessly communicate with the user apparatus and a central unit (CU) connected to the distributed unit. The base station including the CU and the DU supports packet duplication, and the DU notifies the user apparatus of starting the packet duplication.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: August 20, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Tadahiro Shimoda
  • Patent number: 12069632
    Abstract: Provided is a communication system that can be normally and efficiently operated in the case where existing carriers and new carrier types coexist. A base station device and a communication terminal device are configured to perform communication in cells of legacy carriers LC1 to LC3 being existing carriers. When the base station device starts operating new carrier types NCT1 and NCT2, the NCT1 and NCT2 are associated with legacy carriers belonging to the same frequency band. For example, the NCT2 is associated with the LC2 or the LC3 and is not associated with the LC1. The legacy carriers LC1 to LC3 associated with the NCT1 and the NCT2 notify the communication terminal device of the information on the NCT1 and NCT2. This allows the communication terminal device to communicate with the NCT1 and the NCT2.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: August 20, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Miho Maeda, Shinsuke Uga
  • Publication number: 20240276442
    Abstract: A communication system includes a communication terminal, base stations performing radio communication with the communication terminal, and a host device of the base stations. A serving base station of the communication terminal or the host device selects, from among the base stations, a positioning base station transmitting a positioning signal for measuring a position of the communication terminal. The positioning base station transmits the positioning signal, and the communication terminal receives the positioning signal.
    Type: Application
    Filed: April 24, 2024
    Publication date: August 15, 2024
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI, Fumihiro HASEGAWA, Kuniyuki SUZUKI, Daichi UCHINO, Kiyoshige NAKAMURA, Noriyuki FUKUI
  • Publication number: 20240267813
    Abstract: When being connected to a macro cell (S-MeNB) and a small cell (SeNB), a user equipment device performs a pre-handover process of disconnecting the connection with the SeNB before a handover process of switching a macro cell connected with the UE from the macro cell (S-MeNB) that is a moving source to a macro cell (T-MeNB) that is a moving destination along with moving of the UE, and after the handover process, performs a post-handover process of reestablishing the connection with the SeNB.
    Type: Application
    Filed: April 19, 2024
    Publication date: August 8, 2024
    Inventors: Takuya OHARA, Taisei SUEMITSU, Mitsuru MOCHIZUKI, Kuniyuki SUZUKI, Masayuki NAKAZAWA, Daisuke HIRAMATSU
  • Publication number: 20240259062
    Abstract: A communication system includes: a communication terminal that encodes transmission data by using an encoding model that encodes and outputs data that has been input; and a base station that decodes data encoded with the encoding model by using a decoding model that, when encoded data is input, decodes and outputs the data, the encoding model performs encoding on channel state-related data that is data on a channel state between the communication terminal and the base station, and the base station executes machine learning using learning data including the channel state-related data in an un-encoded state to generate the encoding model and the decoding model, and notifies the communication terminal of a learning result of the encoding model.
    Type: Application
    Filed: July 28, 2022
    Publication date: August 1, 2024
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI, Naofumi IWAYAMA, Tatsuya TOKUDA
  • Publication number: 20240260110
    Abstract: A communication system is configured with a central unit and a distributed unit, includes a first base station that operates as a donor for integrated access and backhaul and one or more second base stations that operate as nodes for the integrated access and backhaul, and the central unit performs address configuration for multicasting data from a central unit toward a communication terminal in a backhaul adaptation layer in which data transmitted and received by the communication terminal is routed, on the distributed unit and the second base stations.
    Type: Application
    Filed: May 20, 2022
    Publication date: August 1, 2024
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI
  • Publication number: 20240244647
    Abstract: In a case where a relay terminal (110) exists inside an area (102) where radio waves from a base station (101) reach while a remote terminal (130) exists outside the area (102) where the radio waves from the base station (101) reach, when receiving emergency warning information which is information for notification of an emergency situation from the base station (101), the relay terminal (110) transmits the emergency warning information to the remote terminal (130) by using a connection that has been established between the relay terminal and the remote terminal (130) for one-to-one communication using a Physical Sidelink Shared CHannel (PSSCH).
    Type: Application
    Filed: June 3, 2021
    Publication date: July 18, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Fumiki HASEGAWA, Tetsushi MATSUDA, Mitsuru MOCHIZUKI, Tadahiro SHIMODA, Shinya MAKINO
  • Publication number: 20240236792
    Abstract: A communication system includes: a base station conforming to New Radio Access Technology; and a communication terminal capable of performing multicast communication with the base station. While executing the multicast communication, the communication terminal transmits reception status information to the base station in communication with the communication terminal, the reception status information being information related to a data reception status, and the base station performs control of retransmission of data to the communication terminal on the basis of the reception status information.
    Type: Application
    Filed: February 21, 2022
    Publication date: July 11, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadahiro SHIMODA, Mitsuru MOCHIZUKI
  • Patent number: 12035280
    Abstract: In a communication system, a plurality of base stations includes an MeNB being a first base station, and a plurality of SeNBs to be connected to the MeNB. At least one of control plane data about control of communication and user plane data about a user is transmitted to and received from a user equipment (UE) via the first base station being the MeNB. The control plane data and the user plane data are contained in information provided by a core network about communication with the UE. The communication system can simplify processing of at least one of control plane data and user plane data when a communication terminal device communicates with a plurality of base station devices.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: July 9, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masayuki Nakazawa, Mitsuru Mochizuki, Hideo Umehara, Kuniyuki Suzuki
  • Publication number: 20240201310
    Abstract: A base station (10) according to the present invention includes a reception processing unit (104) that receives a signal for use in positioning transmitted from a terminal device, and a positioning processing unit (106) that computes the location of the terminal device using the signal for use in positioning.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Fumihiro HASEGAWA, Akinori TAIRA, Mitsuru MOCHIZUKI, Tadahiro SHIMODA