TRIGGER FRAME TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230261818A1

    公开(公告)日:2023-08-17

    申请号:US18136695

    申请日:2023-04-19

    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 RECEIVING PPDU THROUGH 240 MHZ BAND IN WIRELESS LAN SYSTEM

    公开(公告)号:US20230130228A1

    公开(公告)日:2023-04-27

    申请号:US17798200

    申请日:2021-02-02

    Abstract: Proposed are a method and device for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives the PPDU from a transmission STA through a wide band, and decodes the PPDU. The PPDU includes a legacy preamble, and first and second signal fields. The legacy preamble and the first and second signal fields are generated on the basis of a first phase rotation value. The first phase rotation value is acquired on the basis of a first preamble puncturing pattern in a wide band. When the wide band is a 240 MHz band, the first preamble puncturing pattern includes a pattern in which a 40 MHz or 80 MHz band in the wide band is punctured. The first phase rotation value is [1 1−1 1 −1 1 −1 −1 −1 −1 1 1].

    Configuration of trigger frame
    88.
    发明授权

    公开(公告)号:US11627496B2

    公开(公告)日:2023-04-11

    申请号:US17713616

    申请日:2022-04-05

    Abstract: The present specification proposes a method for configuring a trigger frame that can be applied to a next-generation Wireless LAN (WLAN) system and an apparatus using the method. As an example, the trigger frame of the present specification may set a bandwidth for a trigger-based (TB) PPDU of up to 320 MHz. As another example, the trigger frame of the present specification may set the format of the TB PPDU transmitted through a primary bandwidth. As another example, the trigger frame of the present specification may trigger an aggregated PPDU (A-PPDU).

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

    公开(公告)号:US20230081928A1

    公开(公告)日:2023-03-16

    申请号:US17797894

    申请日:2021-02-02

    Abstract: Presented are a method and a device for receiving a PPDU in a wireless LAN system. Particularly, a receiving STA receives a PPDU from a transmitting STA through a broadband, and decodes the PPDU. The PPDU includes a legacy preamble and first and second signal fields. The legacy preamble and the first and second signal fields are generated on the basis of a first phase rotation value. The first phase rotation value is acquired on the basis of a first preamble puncturing pattern of the broadband. The first preamble puncturing pattern includes the pattern in which 40 MHz or 80 MHz band is punctured in the broadband, when the broadband is a 320 MHz band. The first phase rotation value is [1 −1 −1 −1 1 −1 −1 −1 −1 1 1 1 −1 1 1 1].

    Method and apparatus for transmitting PPDU in WLAN system

    公开(公告)号:US11464022B2

    公开(公告)日:2022-10-04

    申请号:US17268395

    申请日:2019-09-18

    Abstract: A method and an apparatus for transmitting a PPDU in a WLAN system are proposed. Specifically, a transmitter generates a PPDU and transmits the PPDU to a receiver. The PPDU includes a legacy field and an EHT field. The legacy field includes an L-STF. The EHT field includes a data field. The legacy field is configured on the basis of a CSD value per a transmission chain. The CSD value is determined by a candidate CSD value that is the minimum of the sums of a first absolute value and a second absolute value on the basis of a power ratio. The power ratio is a ratio of received power of the L-STF to received power of the data field. The first absolute value is an absolute value of a value related to 5 percent of a CDF relative to the power ratio. The second absolute value is an absolute value of a value related to 95 percent of the CDF relative to the power ratio.

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