Method for transmitting uplink frame in wireless LAN system, and wireless terminal using same

    公开(公告)号:US10667302B2

    公开(公告)日:2020-05-26

    申请号:US16087566

    申请日:2017-03-22

    Abstract: A method for transmitting an uplink frame in a wireless LAN system according to an embodiment of the present specification comprises the steps in which: a user STA configures a backoff counter for contention-based channel access according to first parameter information for multiple users when a first trigger frame for uplink transmission of the multiple users is received from an AP; the user STA performs a countdown operation on the basis of the backoff counter configured according to the first parameter information; the user STA interrupts the countdown operation in order to transmit a trigger-based uplink frame in response to a second trigger frame when the second trigger frame is received; and the user STA resumes the countdown operation, which has been interrupted, when an ACK frame corresponding to the trigger-based uplink frame is not received.

    Method and apparatus for increasing transmission coverage of STA performing initial access in wireless LAN

    公开(公告)号:US10524288B2

    公开(公告)日:2019-12-31

    申请号:US15549997

    申请日:2015-08-07

    Abstract: A method and an apparatus for increasing transmission coverage of an STA performing an initial access in a wireless LAN are disclosed. An initial access method in a wireless LAN can comprise the steps of: transmitting a trigger frame on a channel by an AP; receiving, by the AP, a first probe request frame transmitted on a first sub-channel by a first STA as a response to the trigger frame; and transmitting, by the AP, on the channel, an MU PPDU including a first probe response frame, which is a response to the first probe request frame, and a second probe response frame, which is a response to the second probe request frame, wherein the channel can include the first sub-channel and the second sub-channel.

    Method for transmitting and receiving frame in wireless LAN system, and apparatus therefor

    公开(公告)号:US10517142B2

    公开(公告)日:2019-12-24

    申请号:US16060398

    申请日:2016-12-12

    Abstract: A method for transmitting a frame by a STA in a wireless LAN system according to an embodiment of the present invention may comprise: receiving a first frame from an AP; determining, on the basis of the first frame, a TXOP duration value to be included in a SIG field of a second frame that the STA is to transmit; and transmitting the second frame, in determining the TXOP duration value, the STA calculates a residual TXOP duration that may retain after the second frame is transmitted, on the basis of a TXOP duration indicated through the first frame, and when the residual TXOP duration is not a multiple of a granularity of a time unit used by the SIG field, the STA approximates the residual TXOP duration to be a first TXOP duration value which is a multiple of the granularity.

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