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    TRANSMISSION APPARATUS AND TRANSMISSION METHOD
    16.
    发明申请
    TRANSMISSION APPARATUS AND TRANSMISSION METHOD 有权

    公开(公告)号：US20220166573A1

    公开(公告)日：2022-05-26

    申请号：US17543455

    申请日：2021-12-06

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： ROJAN CHITRAKAR ,  LEI HUANG ,  YOSHIO URABE

    IPC: H04L5/00 ,  H04B7/0452 ,  H04L1/18

    Abstract: A transmission apparatus includes a transmitter and a receiver. The transmitter transmits a Trigger Frame for allocating resources for Uplink Multi User (UL MU) transmission, the Trigger Frame comprising a common information field that includes a type subfield indicating one of a plurality of trigger types, wherein the plurality of trigger types includes a first trigger type, a second trigger type and a third trigger type, the first trigger type indicating a basic trigger, the second trigger type indicating multi-user block ack request, and the third trigger type indicating a specific trigger used for soliciting a specific type of UL MU response frame from a plurality of terminal stations. The receiver, responsive to the type subfield indicating the third trigger type, receives the specific type of UL MU response frame from the plurality of terminal station.

    COMMUNICATION APPARATUS AND COMMUNICATION METHOD
    19.
    发明申请
    COMMUNICATION APPARATUS AND COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20200045636A1

    公开(公告)日：2020-02-06

    申请号：US16603574

    申请日：2018-03-01

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： LEI HUANG ,  YOSHIO URABE ,  ROJAN CHITRAKAR

    IPC: H04W52/02 ,  H04L12/861

    Abstract: A communication apparatus of the present disclosure comprises a first receiver which, in operation, receives a downlink data frame from a base station; a decoder which, in operation, decodes data included in the received downlink data frame; a signal generator which, when the decoded data indicates that there is no buffered traffic for the communication apparatus, generates an uplink frame that includes acknowledgement information and a wake-up radio (WUR) mode request indicating a request to transit to the WUR mode from a primary connectivity radio (PCR) mode; and a transmitter which, in operation, transmits the uplink frame to the base station.

    COMMUNICATION APPARATUS AND COMMUNICATION METHOD
    20.
    发明申请
    COMMUNICATION APPARATUS AND COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20190200387A1

    公开(公告)日：2019-06-27

    申请号：US16285965

    申请日：2019-02-26

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： ROJAN CHITRAKAR ,  LEI HUANG ,  YOSHIO URABE

    IPC: H04W74/08 ,  H04W48/12 ,  H04W28/20

    CPC classification number: H04W74/0816 ,  H04W28/20 ,  H04W48/12 ,  H04W84/12

    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.

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