Method and apparatus for receiving important update information on APs in transmission MLD in a wireless LAN system

    公开(公告)号:US11917704B2

    公开(公告)日:2024-02-27

    申请号:US17536813

    申请日:2021-11-29

    CPC classification number: H04W76/15 H04L5/0048 H04L69/22 H04W48/16

    Abstract: Provided are a method and apparatus for receiving only complete information on other access points (APs) in a transmitting multi-link device (MLD) in a wireless local area network (WLAN) system. Specifically, a receiving MLD transmits a probe request frame to the transmitting MLD through a first link. The receiving MLD receives a probe response frame from the transmitting MLD through the first link. The probe request frame includes a frame body and a profile field of a second receiving station (STA). When a first receiving STA does not request complete information on the first link and requests complete information on the second link, the complete information on the second link is requested based on the profile field of the second receiving STA. The probe response frame does not include the complete information on the first link, and includes only the complete information on the second link.

    Method and device for requesting partial information on APs in transmission MLD in wireless LAN system

    公开(公告)号:US11871467B2

    公开(公告)日:2024-01-09

    申请号:US18136263

    申请日:2023-04-18

    CPC classification number: H04W76/15 H04W84/12

    Abstract: Proposed are a method and a device for requesting partial information on APs in a transmission MLD in a WLAN system. Specifically, a receiving MLD transmits a probe request frame to a transmission MLD through a first link. The receiving MLD receives a probe response frame from the transmission MLD through the first link. The probe request frame includes a profile field of the second receiving STA. The profile field of the second receiving STA includes a first full information profile subfield. When the first receiving STA requests partial information on the second link, the value of the first full information profile subfield is set to 0, and the profile field of the second receiving STA further includes a first request element. The partial information on the second link is requested on the basis of the first request element.

    Method and apparatus for applying optimized phase rotation by considering preamble puncturing in 802.11AX and various RF capabilities

    公开(公告)号:US11870630B2

    公开(公告)日:2024-01-09

    申请号:US17269948

    申请日:2019-08-21

    CPC classification number: H04L27/2621 H04L1/0013 H04W72/0453 H04W84/12

    Abstract: A method and an apparatus for transmitting an EHT PPDU to a wireless LAN system are presented. Particularly, a transmission device generates an EHT PPDU, and transmits the EHT PPDU to a reception device through a 320 MHz band of which a partial band is punctured on the basis of an RF. A legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value. The first phase rotation value is determined on the basis of a first method and a second method. The first method is for acquiring an optimum PAPR in the L-LTF. The second method is for acquiring an optimum PAPR on the basis of a maximum transmission bandwidth supported by the RF. The first phase rotation value is acquired on the basis of a second phase rotation value and a third rotation value. The second phase rotation value is a phase rotation value which repeats a phase rotation value that is defined with respect to an 80 MHz band in an 802.11ax system. The third phase rotation value is a phase rotation value that is defined by 80 MHz band units in the 320 MHz band.

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