Patents by Inventor Narendar Madhavan

Narendar Madhavan 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: 20210410185
    Abstract: Methods and systems for dynamically adapting an Energy Detection (ED) threshold for use in an unlicensed network are provided. According to one aspect, a method for dynamically adapting ED threshold for use in an unlicensed network comprises determining an ED threshold based on a current state of an unlicensed network and using the determined ED threshold for channel sensing and/or signaling the ED threshold to another entity for use during channel sensing.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 30, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tai DO, Peter ALRIKSSON, Stephen GRANT, Min WANG, Jan CHRISTOFFERSSON, Narendar MADHAVAN, Reem KARAKI, Guido Roland HIERTZ, Havish KOORAPATY, Johan RUNE
  • Patent number: 11153906
    Abstract: According to one embodiment, an electronic apparatus includes a receiver and a transmitter. The receiver is configured to receive, from a first wireless apparatus, a first physical frame including a destination address receivable by a second wireless apparatus different from the electronic apparatus. The transmitter is configured to transmit, to the first wireless apparatus, a first response frame including first information regarding the first physical frame, if the first physical frame is successfully received. A transmission period of the first response frame at least partially overlaps with a transmission period of a second response frame including second information regarding the first physical frame received by the second wireless apparatus.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: October 19, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar Madhavan, Masahiro Sekiya, Toshihisa Nabetani, Kensuke Nakanishi
  • Publication number: 20210266878
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 26, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Tomoko ADACHI
  • Patent number: 11032810
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 8, 2021
    Assignee: KABUSHIKIKAISHA TOSHIBA
    Inventors: Narendar Madhavan, Tomoko Adachi
  • Patent number: 10833837
    Abstract: According to one embodiment, an electronic apparatus includes a transmitter circuitry and a receiver circuitry. The transmitter circuitry is configured to; transmit a first frame to a first terminal, and transmit a second frame to a second terminal when a first period elapsed after transmission of the first frame. The receiver circuitry is configured to receive a third frame including acknowledgement information of the first frame from the first terminal when the first period elapsed after transmission of the first frame. A duration of the second frame is set as equal to or greater than a difference between a duration of the third frame and a duration of the first frame.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 10, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro Sekiya, Toshihisa Nabetani, Narendar Madhavan
  • Publication number: 20200119863
    Abstract: According to one embodiment, an electronic apparatus includes a transmitter circuitry, a receiver circuitry, and a processing circuitry. The transmitter circuitry transmits a first data frame including first data to a destination apparatus. The receiver circuitry receives first acknowledgment information indicative of a reception state of the first data included in the first data frame. The receiver circuitry receives second acknowledgment information indicative of a reception state of the first data included in a second data frame. The second data frame is transmitted from another electronic apparatus to the destination apparatus. The processing circuitry determines whether the first data frame is retransmitted, based on at least one of the first and second acknowledgment information.
    Type: Application
    Filed: August 30, 2019
    Publication date: April 16, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kensuke NAKANISHI, Masahiro SEKIYA, Toshihisa NABETANI, Narendar MADHAVAN
  • Publication number: 20200077441
    Abstract: According to one embodiment, an electronic apparatus includes a receiver and a transmitter. The receiver is configured to receive, from a first wireless apparatus, a first physical frame including a destination address receivable by a second wireless apparatus different from the electronic apparatus. The transmitter is configured to transmit, to the first wireless apparatus, a first response frame including first information regarding the first physical frame, if the first physical frame is successfully received. A transmission period of the first response frame at least partially overlaps with a transmission period of a second response frame including second information regarding the first physical frame received by the second wireless apparatus.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 5, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Masahiro SEKIYA, Toshihisa NABETANI, Kensuke NAKANISHI
  • Patent number: 10523407
    Abstract: According to one embodiment, a wireless communication device includes a receiver and a transmitter. The receiver receives a first frame in a predetermined frequency band. The transmitter transmits a second frame in the predetermined frequency band at a same time as receipt of the first frame. The transmitter transmits control information that controls a transmission timing of a third frame that is a response frame to the second frame. The transmitter transmits a fourth frame that is a response frame to the first frame, at a timing according to the control information.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 31, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa Nabetani, Masahiro Sekiya, Narendar Madhavan
  • Publication number: 20190296886
    Abstract: According to one embodiment, an electronic apparatus includes a transmitter circuitry and a receiver circuitry. The transmitter circuitry is configured to; transmit a first frame to a first terminal, and transmit a second frame to a second terminal when a first period elapsed after transmission of the first frame. The receiver circuitry is configured to receive a third frame including acknowledgement information of the first frame from the first terminal when the first period elapsed after transmission of the first frame. A duration of the second frame is set as equal to or greater than a difference between a duration of the third frame and a duration of the first frame.
    Type: Application
    Filed: August 3, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro SEKIYA, Toshihisa NABETANI, Narendar MADHAVAN
  • Publication number: 20190289577
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Tomoko ADACHI
  • Patent number: 10334578
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 25, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar Madhavan, Tomoko Adachi
  • Publication number: 20190089519
    Abstract: According to one embodiment, a wireless communication device includes a receiver and a transmitter. The receiver receives a first frame in a predetermined frequency band. The transmitter transmits a second frame in the predetermined frequency band at a same time as receipt of the first frame. The transmitter transmits control information that controls a transmission timing of a third frame that is a response frame to the second frame. The transmitter transmits a fourth frame that is a response frame to the first frame, at a timing according to the control information.
    Type: Application
    Filed: March 1, 2018
    Publication date: March 21, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa NABETANI, Masahiro SEKIYA, Narendar MADHAVAN
  • Publication number: 20190089515
    Abstract: According to one embodiment, an electronic apparatus includes a receiver configured to receive a first frame in a first frequency band within a first period from a first apparatus; and a transmitter configured to transmit a second frame in the first frequency band within the first period to a second apparatus. A transmission power of the second frame depends on both a reception quality required by the second apparatus to receive the second frame and an amount of interference from the first apparatus to the second apparatus.
    Type: Application
    Filed: March 5, 2018
    Publication date: March 21, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Toshihisa NABETANI, Tsuguhide AOKI
  • Publication number: 20180077654
    Abstract: There is provided a device and method for managing wireless communication over a transmission channel within a network. A set of received signal strength values is obtained for signals transmitted over the transmission channel within the network. A lowest received signal strength value of the set of received signal strength values is determined. A maximum limit by which a transmission power for the transmission channel may be reduced from a predetermined transmission power is determined, the maximum limit being based on the lowest received signal strength value.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 15, 2018
    Inventors: Parag Kulkarni, Tsuguhide Aoki, Narendar Madhavan
  • Publication number: 20180020428
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Application
    Filed: March 6, 2017
    Publication date: January 18, 2018
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Tomoko Adachi
  • Publication number: 20170134138
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a plurality of first frames by multiplexing, the plurality of first frames each belonging to any one of a plurality of groups; and a receiver configured to receive, at timing not temporally overlapping among the groups, a plurality of second frames which are multiplexed, the plurality of second frames each indicating acknowledgement on the first frame belonging to each group.
    Type: Application
    Filed: September 15, 2016
    Publication date: May 11, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar Madhavan, Toshihisa Nabetani, Haruka Obata, Tsuguhide Aoki