TRIGGER FRAME TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230188278A1

    公开(公告)日:2023-06-15

    申请号:US17925811

    申请日:2021-05-18

    CPC classification number: H04L5/0044 H04L1/0013 H04W84/12

    Abstract: In a Wireless Local Area Network system, an STA may receive a trigger frame from an AP. The trigger frame may include a common information field and user information fields. Each of the user information fields may include a first field related to an association identifier (AID) and a second field including information for the STA related to the AID. The second field may include special information for every STA receiving the trigger frame on the basis that the first field has a specific value. The common information field may include a present field related to whether a user information field in which the first field has the specific value is present among the user information fields.

    METHOD AND DEVICE FOR TRANSMITTING FEEDBACK FRAME IN WIDE BAND IN WIRELESS LAN SYSTEM

    公开(公告)号:US20220322348A1

    公开(公告)日:2022-10-06

    申请号:US17597318

    申请日:2020-06-16

    Abstract: Proposed are a method and device for receiving a feedback frame for MIMO beamforming in a wide band in a wireless LAN system. Specifically, a reception STA receives an NDPA frame from a transmission STA. The reception STA receives an NDP frame from the transmission STA. The reception STA transmits a feedback frame to the transmission STA on the basis of the NDP frame. The feedback frame includes information about a feedback subcarrier for the wide band. When the wide band is a continuous 320 MHz band and the grouping value is Ng, the indexes of the feedback subcarrier are set to [−2036:Ng:−1540], [−1532:Ng:−1036], [−1012:Ng:−516], [−508:Ng:−12], [12:Ng:508], [516:Ng:1012], [1036:Ng:1532] and [1540:Ng:2036].

    METHOD AND APPARATUS FOR RECEIVING PPDU THROUGH BROADBAND IN WIRELESS LAN SYSTEM

    公开(公告)号:US20220278877A1

    公开(公告)日:2022-09-01

    申请号:US17597584

    申请日:2020-07-21

    Abstract: Proposed are a method and an apparatus for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The broadband is a 320 MHz band or a 160+160 MHz band. The PPDU includes a first field and a second field. The first field includes an L-STF and an L-LTF. The first field is generated on the basis of a first phase rotation value. The first phase rotation value is generated on the basis of a second phase rotation value and a third phase rotation value. The second phase rotation value is obtained by repeating a phase rotation value for a 160 MHz band, defined in an 802.11ax wireless LAN system.

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