METHOD AND APPARATUS FOR PERFORMING SIGNALING FOR RESERVED SUB-BAND IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240146469A1

    公开(公告)日:2024-05-02

    申请号:US18410497

    申请日:2024-01-11

    Abstract: A wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.

    METHOD AND DEVICE FOR REQUESTING PARTIAL INFORMATION ON APS IN TRANSMISSION MLD IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240049321A1

    公开(公告)日:2024-02-08

    申请号:US18382782

    申请日:2023-10-23

    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 RECEIVING TRAFFIC FOR ALL LINKS OR SPECIFIC LINK IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240040428A1

    公开(公告)日:2024-02-01

    申请号:US18258384

    申请日:2021-09-06

    CPC classification number: H04W28/06 H04W84/12

    Abstract: Proposed are a method and apparatus for receiving traffic information regarding a TID mapped to all links or a specific link in a wireless LAN system. Particularly, a reception MLD receives a beacon frame from a transmission MLD. The reception MLD decodes the beacon frame. The beacon frame includes an LMB element. The LMB element includes a first field and a second field. The first field includes information regarding whether or not a link bitmap is present. The second field includes information regarding a link bitmap for a specific reception MLD. The information regarding the link bitmap for the specific reception MLD includes first information and second information. The first information is information regarding whether or not traffic for a TID mapped to all links is present for the specific reception MLD. The second information is information regarding whether or not traffic for a TID mapped to a specific link is present for the specific reception MLD.

    METHOD AND APPARATUS FOR REQUESTING SIGNIFICANT UPDATE INFORMATION FROM APS WITHIN TRANSMISSION MLD IN WIRELESS LAN SYSTEM

    公开(公告)号:US20230413165A1

    公开(公告)日:2023-12-21

    申请号:US18034344

    申请日:2021-11-09

    CPC classification number: H04W48/14 H04W76/20 H04W84/12

    Abstract: Proposed are a method and apparatus for requesting significant update information from APs within a transmission MLD in a wireless LAN system. In detail, a reception MLD transmits a probe request frame to the transmission MLD via a first link. The reception MLD receives a probe response frame from the transmission MLD via the first link. The transmission MLD comprises a first transmission STA operating in the first link and a second transmission STA operating in a second link. The reception MLD includes a first reception STA operating in the first link and a second reception STA operating in the second link. The probe request frame includes a profile field of the second reception STA. The profile field of the second reception STA includes a first significant update request field. When the first reception STA requests partial information regarding the second link and the first significant update request field is set to 1, the partial information regarding the second link is set as significant update information regarding the second link.

    METHOD AND APPARATUS FOR IDENTIFYING CHANGE SEQUENCE INFORMATION IN MULTI-LINK OPERATION IN WIRELESS LAN SYSTEM

    公开(公告)号:US20230403647A1

    公开(公告)日:2023-12-14

    申请号:US18036148

    申请日:2021-06-07

    CPC classification number: H04W52/0216 H04W52/0219 H04W84/12

    Abstract: A method and apparatus for identifying change sequence information in a wireless LAN system are proposed. In detail, an STA receives a DTIM beacon frame and a beacon frame from a first AP. The STA decodes the DTIM beacon frame in a first awake state and decodes the beacon frame in a second awake state. Both the DTIM beacon frame and the beacon frame include a CUF and a CSN. When a significant update of a second AP occurs, a value of the CUF is changed from 0 to 1 until transmission of a next DTIM beacon frame, the value of the CUF is changed from 1 to 0 after the transmission of the next DTIM beacon frame, and the CSN includes updated information. The updated information is decoded in the second awake state regardless of the value of the CUF.

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