Patents by Inventor Takamichi Inoue

Takamichi Inoue 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).

  • Patent number: 11057178
    Abstract: A reference signal multiplexing method for multiple mobile stations includes: grouping together control signals for the multiple mobile stations; and multiplexing reference signals corresponding to the control signals by CDM over the same bandwidth as that of grouped control signals.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: July 6, 2021
    Assignee: NEC CORPORATION
    Inventors: Takamichi Inoue, Yoshikazu Kakura
  • Publication number: 20210045118
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Application
    Filed: October 15, 2020
    Publication date: February 11, 2021
    Applicant: NEC CORPORATION
    Inventors: Takamichi INOUE, Kenji KOYANAGI, Le LIU, Yoshikazu KAKURA
  • Patent number: 10849126
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: November 24, 2020
    Assignee: NEC CORPORATION
    Inventors: Takamichi Inoue, Kenji Koyanagi, Le Liu, Yoshikazu Kakura
  • Patent number: 10805929
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: October 13, 2020
    Assignee: NEC CORPORATION
    Inventors: Takamichi Inoue, Kenji Koyanagi, Le Liu, Yoshikazu Kakura
  • Publication number: 20200314825
    Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 1, 2020
    Applicant: NEC CORPORATION
    Inventors: Kenji Koyanagi, Takamichi Inoue, Le Liu, Yoshikazu Kakura
  • Publication number: 20200280883
    Abstract: A communication apparatus includes an accumulation means 501 that temporarily accumulates communication data in a previous stage of transmission to the MAC layer, an estimation means 502 that estimates an amount of transmittable data, which is an amount of data that can be transmitted in the MAC layer in a predetermined period, by using a radio wave index that is an index related to a radio wave in the frequency and/or a communication index that is an index related to wireless communication using the frequency, the indices being measured by an own apparatus or a wireless device including a MAC layer used by the own apparatus, and a control means 503 that controls, on the basis of an estimation result of the amount of transmittable data, a data flow of when the communication data accumulated in the accumulation means 501 is transmitted to a lower layer.
    Type: Application
    Filed: August 10, 2018
    Publication date: September 3, 2020
    Applicant: NEC Corporation
    Inventors: Takamichi INOUE, Kousuke NOGAMI
  • Patent number: 10736086
    Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 4, 2020
    Assignee: NEC CORPORATION
    Inventors: Kenji Koyanagi, Takamichi Inoue, Le Liu, Yoshikazu Kakura
  • Patent number: 10716106
    Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: July 14, 2020
    Assignee: NEC CORPORATION
    Inventors: Kenji Koyanagi, Takamichi Inoue, Le Liu, Yoshikazu Kakura
  • Patent number: 10624096
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 14, 2020
    Assignee: NEC CORPORATION
    Inventors: Takamichi Inoue, Kenji Koyanagi, Le Liu, Yoshikazu Kakura
  • Patent number: 10616803
    Abstract: Provided is a radio base station, etc. that realize transmission control in view of QoE. According to a first aspect of the present invention, there is provided a radio base station that receives a packet(s) transmitted from a packet transmission apparatus via a network and transmits the received packet(s) to a wireless terminal(s), the radio base station including: acquisition means that acquires a packet type(s) or a packet identifier(s) set in the packet(s) by the packet transmission apparatus; and control means that performs transmission control to change a transmission order of the packet(s) based on the packet type(s) or the packet identifier(s).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 7, 2020
    Assignee: NEC CORPORATION
    Inventors: Takahiro Nobukiyo, Takamichi Inoue, Daisuke Ohta, Toru Osuga
  • Patent number: 10615940
    Abstract: A radio communication system includes a network and a user terminal, wherein the network includes a plurality of radio stations and a controller which controls the plurality of radio stations, wherein at least two of the plurality of radio stations communicate with the user terminal, wherein the controller notifies the user terminal of information about resource for interference measurement, wherein the user terminal calculates and reports channel quality information based on the information.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 7, 2020
    Assignee: NEC Corporation
    Inventors: Le Liu, Takamichi Inoue, Naoto Ishii, Yoshikazu Kakura
  • Publication number: 20190334665
    Abstract: A reference signal multiplexing method for multiple mobile stations includes: grouping together control signals for the multiple mobile stations; and multiplexing reference signals corresponding to the control signals by CDM over the same bandwidth as that of grouped control signals.
    Type: Application
    Filed: July 5, 2019
    Publication date: October 31, 2019
    Applicant: NEC CORPORATION
    Inventors: Takamichi INOUE, Yoshikazu KAKURA
  • Patent number: 10382178
    Abstract: A reference signal multiplexing method for multiple mobile stations includes: grouping together control signals for the multiple mobile stations; and multiplexing reference signals corresponding to the control signals by CDM over the same bandwidth as that of grouped control signals.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: August 13, 2019
    Assignee: NEC CORPORATION
    Inventors: Takamichi Inoue, Yoshikazu Kakura
  • Publication number: 20190215853
    Abstract: A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Inventors: Le LIU, Yoshikazu KAKURA, Naoto ISHII, Takamichi INOUE
  • Publication number: 20190191436
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 20, 2019
    Applicant: NEC CORPORATION
    Inventors: Takamichi Inoue, Kenji Koyanagi, Le Liu, Yoshikazu Kakura
  • Patent number: 10285192
    Abstract: A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: May 7, 2019
    Assignee: NEC Corporation
    Inventors: Le Liu, Yoshikazu Kakura, Naoto Ishii, Takamichi Inoue
  • Publication number: 20190090232
    Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.
    Type: Application
    Filed: October 16, 2018
    Publication date: March 21, 2019
    Applicant: NEC CORPORATION
    Inventors: Kenji KOYANAGI, Takamichi INOUE, Le LIU, Yoshikazu KAKURA
  • Publication number: 20190045511
    Abstract: A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
    Type: Application
    Filed: October 2, 2018
    Publication date: February 7, 2019
    Applicant: NEC CORPORATION
    Inventors: Takamichi INOUE, Kenji KOYANAGI, Le LIU, Yoshikazu KAKURA
  • Patent number: 10182423
    Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: January 15, 2019
    Assignee: NEC CORPORATION
    Inventors: Kenji Koyanagi, Takamichi Inoue, Le Liu, Yoshikazu Kakura
  • Publication number: 20180359736
    Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 13, 2018
    Applicant: NEC CORPORATION
    Inventors: Kenji KOYANAGI, Takamichi INOUE, Le LIU, Yoshikazu KAKURA