METHOD AND DEVICE FOR ACCESS POINT-TO-ACCESS POINT TRIGGER AND RESPONSE IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240276525A1

    公开(公告)日:2024-08-15

    申请号:US18569413

    申请日:2022-06-15

    CPC classification number: H04W72/27 H04W74/0833 H04W84/12

    Abstract: Disclosed are a method and a device for access point-to-access point trigger and response for a multi-access point operation in a wireless LAN system. A method for performing a response to an AP-to-AP trigger by a first access point (AP) in a wireless LAN system according to an embodiment of the present disclosure comprises the steps of: receiving a first trigger frame from a second AP; and transmitting a first physical layer protocol data unit (PPDU) to the second AP or at least one station (STA) on the basis of the first trigger frame, wherein the first trigger frame is transmitted from the second AP to at least one AP including the first AP, the first PPDU transmitted to the second AP comprises information related to a multi-AP operation, and the first PPDU transmitted to the at least one STA may comprise a second trigger frame.

    METHOD AND DEVICE FOR CONFIGURING TRIGGER FRAME INCLUDING CONTROL INFORMATION FOR DL A-PPDU IN WLAN SYSTEM

    公开(公告)号:US20240259242A1

    公开(公告)日:2024-08-01

    申请号:US18566539

    申请日:2022-05-31

    CPC classification number: H04L27/2602 H04W72/04 H04W72/20 H04W84/12

    Abstract: The present disclosure proposes a method and a device for configuring a trigger frame including control information for DL A-PPDU in a WLAN system. Specifically, a receiving STA receives a trigger frame from a transmitting STA. The receiving STA receives, from the transmitting STA, a triggered DL A-PPDU on the basis of the trigger frame. The trigger frame includes a common information field, an HE modified user information field, and an EHT modified user information field. The common information field includes a trigger type subfield, a DL BW subfield, a DL BW Extension subfield, and a first reserved subfield. The HE modified user information field includes a first AID12 subfield, a first RU allocation subfield, and a second reserved subfield. The EHT modified user information field includes a second AID12 subfield, a second RU allocation subfield, and a PS160 subfield.

    METHOD AND DEVICE FOR TRANSMITTING CAPABILITY INFORMATION ABOUT RECEPTION STA IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240251234A1

    公开(公告)日:2024-07-25

    申请号:US18563212

    申请日:2022-05-27

    CPC classification number: H04W8/22 H04L1/0003 H04W84/12

    Abstract: The present disclosure proposes a method and device for transmitting capability information about a reception STA in a wireless LAN system. Specifically, the reception STA generates and transmits capability information about the reception STA to a transmission STA. The capability information about the reception STA includes an HE Capabilities element and an EHT Capabilities element. The HE Capabilities element includes a Supported EHT-MCS And NSS Set field. The EHT Capabilities element includes a Supported EHT-MCS And NSS Set field. The Supported EHT-MCS And NSS Set field includes first to fourth sub-fields. When the reception STA is a non-AP STA operating only at 20 MHz and is allocated to a first transmission bandwidth, the first sub-field includes information about the maximum number of spatial streams that the reception STA can transmit and receive in each MCS.

    METHOD AND DEVICE FOR CONFIGURING BANDWIDTH FIELD TO INDICATE BANDWIDTH OF TB A-PPDU IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240137168A1

    公开(公告)日:2024-04-25

    申请号:US18546703

    申请日:2022-03-04

    CPC classification number: H04L5/0044

    Abstract: The present disclosure proposes a method and device for configuring a bandwidth field to indicate a bandwidth of a TB A-PPDU in a wireless LAN system. Particularly, a reception STA receives a trigger frame from a transmission STA. The reception STA transmits a TB A-PPDU to the transmission STA through a 320 MHz band. The trigger frame includes a common information field and a special user information field. The common information field includes a first bandwidth field. The special user information field includes a second bandwidth field. The TB A-PPDU includes an HE TB PPDU for a primary 160 MHz channel and an EHT TB PPDU for a secondary 160 MHz channel.

    METHOD AND DEVICE FOR TRANSMISSION BASED ON DUPLICATION MODE IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240137155A1

    公开(公告)日:2024-04-25

    申请号:US18279043

    申请日:2022-04-04

    CPC classification number: H04L1/0068 H04L5/0039 H04W84/12

    Abstract: A method and a device for transmission based on a duplication (DUP) mode related to frequency unit puncturing in a wireless LAN system are disclosed. A method for transmitting or receiving a physical layer protocol data unit (PPDU) by a station (STA) in a wireless LAN system according to an embodiment of the present disclosure may comprise the steps of: receiving, from an access point (AP), information related to whether a duplication (DUP) mode is supported; and transmitting or receiving the PPDU on the basis of whether the DUP mode is supported, wherein the information related to whether the DUP mode is supported is included in the same one frame as that for information related to puncturing of one or more frequency units within a basic service set (BSS) bandwidth.

    METHOD AND APPARATUS FOR CONFIGURING SPACE REUSE FIELD IN WLAN SYSTEM

    公开(公告)号:US20240080824A1

    公开(公告)日:2024-03-07

    申请号:US18272317

    申请日:2022-01-11

    CPC classification number: H04W72/0453 H04L5/0094 H04L27/2602 H04W84/12

    Abstract: Proposed are a method and an apparatus for configuring a space reuse field in a WLAN system. Specifically, a receiving STA receives a trigger frame from a transmitting STA. The receiving STA transmits a TB PPDU to the transmitting STA through a 320 MHz band. The trigger frame includes first and second non-HT Dup PPDUs. In a first non-HT Dup PPDU, all fields are copied and transmitted for each 20 MHz channel over a first 160 MHz channel having a low frequency within a 320 MHz band. In a second non-HT Dup PPDU, all fields are copied and transmitted for each 20 MHz channel over a second 160 MHz channel having a high frequency within the 320 MHz band. The first non-HT Dup PPDU includes a first common information field and a first special user information field. The second non-HT Dup PPDU includes a second common information field and a second special user information field.

    METHOD AND DEVICE FOR RECEIVING FEEDBACK FRAME IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240030966A1

    公开(公告)日:2024-01-25

    申请号:US18023539

    申请日:2021-08-17

    CPC classification number: H04B7/0417 H04B7/0452 H04W84/12

    Abstract: Proposed are a method and device for receiving a feedback frame in a wireless LAN system. Specifically, a beamformer receives a feedback frame for MIMO beamforming from a beamformee and decodes the feedback frame. The feedback frame includes a first feedback tone for a preset frequency band. When the preset frequency band is the 20 MHz band, the tone index of the first feedback tone is set to [−122, −116:8:−4, −2, 2, 4:8:116, 122] when Ng is 8, and [−122, −116, −108:32:−12, −4, −2, 2, 4, 12:32:108, 116, 122] when Ng is 32. When the preset frequency band is the 40 MHz band, the tone index of the first feedback tone is set to [−244:8:−4, 4:8:244] when Ng is 8, and [−244, −236:32:−12, −4, 4, 12:32:236, 244] when Ng is 32.

    METHOD AND DEVICE FOR RECEIVING A-PPDU IN WIRELESS LAN SYSTEM

    公开(公告)号:US20240023017A1

    公开(公告)日:2024-01-18

    申请号:US18254080

    申请日:2021-12-06

    CPC classification number: H04W52/0216 H04L5/0044 H04W84/12

    Abstract: Proposed are a method and a device for receiving an A-PPDU in a wireless LAN system. Specifically, a reception STA receives an A-PPDU from a transmission STA and decodes the A-PPDU. The A-PPDU includes a first PPDU for a primary 80 MHz channel and a second PPDU for a secondary 80 MHz channel. The first PPDU includes a first L-STF, a first L-LTF, a first L-SIG, a first RL-SIG, HE-SIG-A, HE-SIG-B, and first data. The second PPDU includes a pre-padding field, a second L-STF, a second L-LTF, a second L-SIG, a second RL-SIG, U-SIG, EHT-SIG, and second data. The pre-padding field consists of a sequence having no cross-correlation with the first L-STF and the first L-LTF.

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