Method and apparatus for transmitting PPDU in WLAN system

    公开(公告)号:US11497058B2

    公开(公告)日:2022-11-08

    申请号:US17267805

    申请日:2019-07-23

    Abstract: A method and an apparatus for transmitting a PPDU in a WLAN system are proposed. Particularly, a transmission device receives configuration information relating to a multi-band. The transmission device performs channel sensing with respect to the multi-band. The transmission device transmits PPDUs to a reception device via the multi-band on the basis of the result of the channel sensing. In the multi-hand, a first band and a second band are combined. The first band includes a first primary channel. The second band includes a second primary channel. The channel sensing is performed on the basis of a first CW value which is set in common for the first and second bands. If transmission of some PPDUs allocated to the second band of the PPDUs fails, the first CW value is increased.

    Method for changing channel in multi-links

    公开(公告)号:US12219644B2

    公开(公告)日:2025-02-04

    申请号:US17642624

    申请日:2020-09-03

    Abstract: Presented are a method by which a transmitting device performs channel switching between multi-links in a wireless local area network (LAN) system, and a device. Particularly, the method comprises the steps of: transmitting multi-link channel switching capability information to a receiving device, wherein the multi-link channel switching capability information includes information related to whether the transmitting device can perform channel changing between multi-link channels; transmitting a physical protocol data unit (PPDU) to the receiving device through a first link; transmitting a multi-link channel change signal to the receiving device through the first link; and transmitting the PPDU to the receiving device through a second link.

    MPDU padding for HARQ operation
    46.
    发明授权

    公开(公告)号:US12150098B2

    公开(公告)日:2024-11-19

    申请号:US17600993

    申请日:2020-04-06

    Abstract: In a wireless local area network system, a station (STA) generates a physical (PHY) protocol data unit (PPDU) including at least one subframe and information related to a subframe length, wherein the subframe may include a medium access control (MAC) protocol data unit (MPDU) and a padding bit. The length of the padding bit may be determined such that the length of the subframes is an integer multiple of a codeword length. The information related to the subframe length may be information on the number of codewords related to the subframe length. A step in which the STA transmits the PPDU may be comprised.

    Channel access in multi-link
    49.
    发明授权

    公开(公告)号:US12082242B2

    公开(公告)日:2024-09-03

    申请号:US17773767

    申请日:2020-10-28

    CPC classification number: H04W74/04 H04W84/12

    Abstract: A method for a non-simultaneous transmit and receive (non-STR) device in a wireless local area network (LAN) is provided. The non-STR device may support a multi-link communication related to a first link and a second link. The non-STR device may determine whether to transmit a first physical protocol data unit (PPDU), PPDU, based on a channel access result on the first link and a channel access result on the second link. The non-STR device determines not to transmit the first PPDU through the first link and keeps the back-off counter of the first link at zero (0) when a back-off counter of the first link reaches zero (0) and a back-off counter of the second link does not reach zero (0).

Patent Agency Ranking