Patents by Inventor Yoshio Urabe

Yoshio Urabe 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: 20250056421
    Abstract: A communication apparatus includes: signal generation circuitry which, in operation, generates a control signal including a target reception power value regarding a target value of a reception power for the communication apparatus to receive an uplink (UL) response frame transmitted by each of one or more terminal stations, the control signal being a trigger frame that solicits transmission of the UL response frame from each of the one or more terminal stations; and transmission circuitry which, in operation, transmits the generated signal.
    Type: Application
    Filed: October 30, 2024
    Publication date: February 13, 2025
    Inventors: TOMOHUMI TAKATA, YOSHIO URABE, TAKASHI IWAI
  • Publication number: 20250055741
    Abstract: A transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Inventors: LEI HUANG, YOSHIO URABE, MICHAEL HONG CHENG SIM
  • Publication number: 20250055501
    Abstract: An access point (AP) includes a receiver, which, in operation, receives a Joint Transmission (JT) Trigger frame from another AP that indicates MAC protocol data units (MPDUs) to be jointly transmitted to a communication apparatus; and a local memory that stores one or more MPDUs previously transmitted to the communication apparatus.
    Type: Application
    Filed: October 23, 2024
    Publication date: February 13, 2025
    Inventors: Rojan CHITRAKAR, Lei HUANG, Yoshio URABE
  • Patent number: 12225518
    Abstract: This base station is provided with: a control circuit that generates information relating to a terminal group among a plurality of terminals, said terminal group being a target of transmission by non-orthogonal multiple access; and a transmission circuit that transmits the information relating to the terminal group during a period in which control information addressed to the plurality of terminals is transmitted.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: February 11, 2025
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Jun Minotani, Takashi Iwai, Tomofumi Takata, Yoshio Urabe
  • Patent number: 12225588
    Abstract: A wireless station that belongs to a communication cell includes a receiver which, in operation, receives a trigger frame transmitted from an access point that belongs to an interference cell and a controller which, in operation, determines, based on at least one parameter included in the trigger frame and reception power value of the trigger frame received at the wireless station, whether the wireless station is allowed to transmit to other wireless station that belongs to the communication cell, wherein the at least one parameter includes a value set based on transmit power value of the trigger frame transmitted from the access point.
    Type: Grant
    Filed: May 9, 2024
    Date of Patent: February 11, 2025
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Tomoya Nunome, Takashi Iwai, Yoshio Urabe
  • Patent number: 12225533
    Abstract: The present disclosure provides communication apparatus and communication method for control signaling.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: February 11, 2025
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Lei Huang, Yoshio Urabe, Rojan Chitrakar
  • Publication number: 20250047343
    Abstract: The present disclosure provides communication apparatuses and methods for partial channel state information (CSI) feedback, the communication apparatus comprising: a receiver, which in operation, receives a measurement signal; circuitry, which in operation, is configured to measure CSI of the received measurement signal; and a transmitter, which in operation, transmits a report frame including information of a sub-component of the CSI.
    Type: Application
    Filed: October 6, 2022
    Publication date: February 6, 2025
    Inventors: Rojan CHITRAKAR, Yoshio URABE
  • Publication number: 20250039023
    Abstract: A communication apparatus includes circuitry and a transmitter. The circuitry generates a signal including one or more non-legacy long training field (LTF) symbols. Each of the one or more non-legacy LTF symbols has a plurality of data tones and a plurality of pilot tones. The circuitry maps a non-legacy LTF sequence to the plurality of data tones and the plurality of pilot tones, and groups the plurality of data tones with nonzero non-legacy LTF sequence values into a first tone group and a second tone group. The signal includes information on a number NSTS of space-time streams, wherein a total number of the one or more non-legacy LTF symbols is [NSTS/2] when 10 the NSTS is 2, 3, 4, 7, 8, 11, 12, 15 or 16; and [NSTS/2]+1 when the NSTS is 5, 6, 9, 10, 13 or 14. The transmitter, in operation, transmits the generated signal.
    Type: Application
    Filed: October 17, 2024
    Publication date: January 30, 2025
    Inventors: Lei HUANG, Yoshio URABE, Yanyi DING, Rojan CHITRAKAR
  • Publication number: 20250039863
    Abstract: The present invention enables more efficient control of Multi-AP coordination. A base station, according to the present invention, comprises: a control circuit that generates shared information that is shared among a plurality of users and includes information pertaining to unassigned resources, and individual user information specific to each of the plurality of users; and a transmission circuit that transmits a control signal comprising the shared information and the individual user information.
    Type: Application
    Filed: October 14, 2024
    Publication date: January 30, 2025
    Inventors: Takashi IWAI, Tomofumi TAKATA, Yoshio URABE, Takayuki NAKANO, Jun MINOTANI
  • Publication number: 20250031214
    Abstract: A transmission apparatus comprises an assignment information generator which, in operation, assigns resources on a resource unit (RU) basis to one or more terminal stations (STAs) and generates assignment information that specifies RUs allocated to the one or more STAs; a transmission signal generator which, in operation, generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field that carry a set ID and the assignment information, and wherein the set ID identifies one assignment set comprising the one or more STAs and a plurality of assignment indices, and wherein the assignment information comprises a resource assignment indication for each of a plurality of assignment which are referenced by the plurality of assignment indices; and a transmitter which, in operation, transmits the generated transmission signal.
    Type: Application
    Filed: October 2, 2024
    Publication date: January 23, 2025
    Inventors: LEI HUANG, HONG CHENG MICHAEL SIM, YOSHIO URABE, ISAMU YOSHII
  • Publication number: 20250024454
    Abstract: This communication device is provided with a control circuit for determining control information that corresponds to a control type set in inter-base station cooperative communication, and a transmission circuit for transmitting the control information.
    Type: Application
    Filed: November 16, 2022
    Publication date: January 16, 2025
    Inventors: Takayuki NAKANO, Takashi IWAI, Yoshio URABE
  • Publication number: 20250008574
    Abstract: A station apparatus includes a receiver and a controller. The receiver, in operation, receives a Trigger frame allocating Random Access Resource Units (RA-RUs) over multiple bands. The Trigger frame includes a User Info field that comprises a Band Indication subfield for specifying a first band among the multiple bands, an RU Allocation subfield for indicating a first RA-RU of one or more contiguous RA-RUs in the first band, and a Number of RA-RU subfield for indicating a number of the contiguous RA-RUs minus one in the first band. The controller, in operation: sets a first Orthogonal Frequency Division Multiple Access (OFDMA) random access backoff (OBO) counter to 0 if an initial value of the first OBO counter is not larger than a number of eligible RA-RUs in the first band, which is a subset of contiguous RA-RUs in the Trigger frame; and randomly selects one of the eligible RA-RUs.
    Type: Application
    Filed: September 16, 2024
    Publication date: January 2, 2025
    Inventors: Lei HUANG, Yoshio URABE, Rojan CHITRAKAR
  • Patent number: 12177023
    Abstract: Present disclosure provides a communication apparatus comprising circuitry, which, in operation, generates a first trigger frame that includes one or more user information fields, and a transmitter, which, in operation, transmits the generated trigger frame; wherein each of the one or more user information fields indicates one of more than one hybrid automatic repeat request (HARQ) feedback types.
    Type: Grant
    Filed: June 27, 2020
    Date of Patent: December 24, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Lei Huang, Yoshio Urabe, Rojan Chitrakar
  • Publication number: 20240421943
    Abstract: The present disclosure provides a communication apparatus including circuitry, which, in operation, generates a transmission signal that includes a signal field and a data field, the signal field indicating one or more user-specific allocations in the data field. An aggregate medium access control protocol data unit (A-MPDU) transmitted in each of the one or more user-specific allocations is segmented into one or more code blocks. The communication apparatus includes a transmitter, which, in operation, transmits the generated transmission signal and a receiver, which, in operation, receives a null data packet (NDP) or a medium access control (MAC) frame carrying hybrid automatic repeat request (HARQ) feedback information for the one or more code blocks.
    Type: Application
    Filed: August 30, 2024
    Publication date: December 19, 2024
    Inventors: Lei HUANG, Yoshio URABE, Rojan CHITRAKAR
  • Publication number: 20240414768
    Abstract: The communication apparatus comprises a receiver which, in operation, receives a PHY layer Data Unit that includes a duration field; Physical (PHY) layer circuitry which, in operation, issues a PHY-CCA (clear channel assessment) primitive parameter indicating bandwidth information on a busy or idle state for each subchannel within an operating bandwidth; and Media Access Control (MAC) circuitry which, in operation, updates a Network Allocation Vector (NAV) value based on the duration information and, in operation, determines busy/idle state of at least one subchannel, wherein the MAC circuitry, in operation, controls transmission of the HE TB PHY layer Data Unit based on the updated NAV value and the busy/idle state of the at least one subchannel, and controls the PHY circuitry to have the HE TB PHY layer Data Unit transmitted when the at least one subchannel is considered idle, regardless of whether the primary subchannel is busy or not.
    Type: Application
    Filed: August 23, 2024
    Publication date: December 12, 2024
    Inventors: Rojan CHITRAKAR, Lei HUANG, Yoshio URABE
  • Publication number: 20240414596
    Abstract: This access point comprises: a control circuit that determines channel information pertaining to control of cooperative communication, such determination being on the basis of a channel which is allocated to each of a plurality of access points in non-cooperative communication; and a transmission circuit that transmits channel information to another access point.
    Type: Application
    Filed: October 4, 2022
    Publication date: December 12, 2024
    Inventors: Jun MINOTANI, Takashi IWAI, Yoshio URABE
  • Patent number: 12167344
    Abstract: A communication apparatus includes: signal generation circuitry which, in operation, generates a control signal including a target reception power value regarding a target value of a reception power for the communication apparatus to receive an uplink (UL) response frame transmitted by each of one or more terminal stations, the control signal being a trigger frame that solicits transmission of the UL response frame from each of the one or more terminal stations; and transmission circuitry which, in operation, transmits the generated signal.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: December 10, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomohumi Takata, Yoshio Urabe, Takashi Iwai
  • Patent number: 12166857
    Abstract: A transmitting multi-link device (MLD) includes circuitry and a transmitter. The circuitry, in operation, constructs an Additional Authentication Data (AAD) and a Nonce, and encapsulates a plaintext medium access control (MAC) protocol data unit (MPDU), the AAD, and the Nonce to generate an encapsulated MPDU. The AAD includes an Address 1 (A1) field, to which a recipient MLD's MAC address is set, and an AAD Address 2 (A2) field, to which the transmitting MLD's MAC address is set. The Nonce includes a Nonce Address 2 (A2) field, to which the transmitting MLD's MAC address is set. The transmitter, in operation, transmits the encapsulated MPDU to the recipient MLD on a first link.
    Type: Grant
    Filed: November 28, 2023
    Date of Patent: December 10, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Rojan Chitrakar, Lei Huang, Yoshio Urabe
  • Patent number: 12166614
    Abstract: A transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: December 10, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Lei Huang, Yoshio Urabe, Michael Hong Cheng Sim
  • Publication number: 20240406990
    Abstract: Communication devices and methods for opportunistic WLAN sensing are provided. One exemplary embodiment provides a first communication apparatus comprising a 10 receiver, which in operation, receives a first PPDU and a second PPDU, the first PPDU indicating PHY parameters for the first PPDU and the second PPDU indicating PHY parameters for the second PPDU; and circuitry, which in operation, determines whether the PHY parameters of the first and second PPDUs are to be used for sensing based on a comparison between the first and second PPDUs, and the PHY parameters 15 of the first and second PPDUs.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 5, 2024
    Inventors: Rajat PUSHKARNA, Rojan CHITRAKAR, Hong Cheng, Michael SIM, Yoshio URABE