Abstract: A method and a device for performing TID-to-link mapping in a wireless LAN system are disclosed. A method of performing link management by an STA MLD in a wireless LAN system may comprise the steps of: receiving a first frame including first information related to link mapping of a plurality of TIDS from an AP MLD; and transmitting, to the AP MLD, a second frame including second information indicating whether to request updating of link mapping of at least one TID among the plurality of TIDs and third information related to updating of link mapping of the at least one TID.

Abstract: Presented are a method and a device for requesting and receiving information about other AP corresponding to a nontransmitted BSSID set in a wireless LAN system. Particularly, a reception MLD transmits a multi-link (ML) probe request frame from a transmission MLD through a first link. The reception MLD receives an ML probe response frame from the transmission MLD through the first link. The transmission MLD includes first and second transmission MLDs. The first transmission MLD includes a first transmission STA operating in the first link. The second transmission MLD includes a second transmission STA operating in the first link, and a third transmission STA operating in a second link. The second transmission STA is a transmission STA corresponding to a first nontransmitted BSSID of a set of multiple BSSIDs on the basis of the first transmission STA.

Abstract: The present disclosure discloses a method and a device for establishing association with multiple access points (APs) in a wireless LAN system. A method carried out by a station (STA) in a wireless LAN system, according to one embodiment of the present disclosure, may comprise the steps of: receiving, from a specific AP, a beacon frame including information related to an AP set to which the specific AP belongs; transmitting, to the specific AP, a first frame for requesting association between the STA and multiple APs belonging to the AP set; and receiving, from the specific AP, a second frame corresponding to a response to the first frame. Here, at least one of the first frame or the second frame may include association-related information for each AP included in the multiple APs.

Abstract: A method and a device for multi-link device (MLD)-based roaming in a wireless LAN system are disclosed. The method performed by a first STA in a wireless LAN system comprises the steps of: receiving, from a first AP included in a first group, notice information related to MLD-based roaming and comprising at least one group ID; transmitting, to the first AP, a first request frame comprising a link ID of a second AP and a group ID related to a second group comprising the second AP; and receiving, from the first AP, a first response frame comprising the link ID of the second AP and the group ID related to the second group, wherein the first response frame may comprise TID-to-link mapping information about a new link related to the second AP, and an AID for the first STA in the second group.

Abstract: The present specification proposes an improved recommendation for TWT operation supported in a next-generation wireless LAN system. According to one embodiment of the present specification, an improved recommendation for constrained TWT operation is defined. According to another embodiment of the present specification, whether an STA performs an NAV protection mechanism can be determined according to the value of a broadcast TWT proposal subfield.

Abstract: The present disclosure relates to frame exchange between stations (STAs) in a wireless local area network (LAN) system. According to an embodiment of the present disclosure, a method performed by a station (STA) in a wireless LAN system comprises the steps of: acquiring a transmission opportunity (TXOP); transmitting a first frame to an AP, the first frame being for requesting a frame exchange between STAs, including a first STA and a second STA, within the TXOP; receiving a second frame, transmitted by the AP, after transmitting the first frame, the second frame being for configuring a protection period for the frame exchange between the STAs; and performing the frame exchange between the STAs within the TXOP on the basis of the protection period.

Abstract: The present invention relates to a method and device for a prior secure connection in a WLAN system. A method performed by a first station (STA) in a WLAN system according to an embodiment of the present disclosure may comprise the steps of: transmitting, to a second STA, a first message including a pre-association security negotiation (PASN) parameter element including an identifier for the first STA; and receiving, from the second STA, a second message transmitted on the basis of the identifier satisfying a prescribed condition.

Abstract: Proposed are a method and apparatus for transmitting an ML element for ML reconfiguration in a wireless LAN system. In particular, a reception MLD generates a first ML element for ML reconfiguration. The reception MLD transmits the first ML element to a transmission MLD through a first link. The first ML element includes a profile sub-element of a second reception STA. The profile sub-element of the second reception STA includes a first STA control field. The first STA control field includes an entire profile sub-field. When a value of the entire profile sub-field is 1, the profile sub-element of the second reception STA includes entire information for the ML reconfiguration. When the value of entire profile sub-field is 0, the profile sub-element of the second reception STA does not include any information for the ML reconfiguration.

Abstract: The present disclosure relates to transmission opportunity (TXOP) sharing for multiple users in a wireless local area network (LAN) system. According to an embodiment of the present disclosure, a method performed by means of a station (STA) in a wireless LAN system comprises the steps of: receiving a TXOP sharing (TXS) trigger frame including a plurality of user information fields, each of the plurality of user information fields indicating a corresponding allocation period from among a plurality of allocation periods in a TXOP period related to the TXS trigger frame; identifying one or more allocation periods of the STA on the basis of one or more user information fields for the STA from among the plurality of user information fields; determining a start time of a first allocation period from among the one or more allocation periods on the basis of sequence information and/or a basic trigger frame; and transmitting data in the first allocation period after the start time.

Abstract: Disclosed are a method and apparatus for accessing a secondary channel in a wireless LAN system. The method performed by a first station (STA) in a wireless LAN system, according to an embodiment of the present disclosure, may comprise the steps of: performing a backoff process on one or more first secondary channels on the basis of a state of a primary channel being busy; and transmitting a physical layer protocol data unit (PPDU) on one or more second secondary channels on the basis of expiration of a backoff counter for the one or more first secondary channels.

Abstract: A method and an apparatus for accessing a secondary channel in a wireless LAN system are disclosed. A method performed by a station (STA) according to an embodiment of the present disclosure may comprise the steps of: configuring a network allocation vector (NAV) for a primary channel on the basis of a first frame received via a physical protocol data unit (PPDU) other than an intra basic service set (BSS) PPDU; and attempting to transmit a second frame on one or more secondary channels other than the primary channel.

Abstract: The present disclosure relates to a transmission opportunity (TXOP) sharing procedure in which cooperative access points (APs) participate in a wireless LAN system. According to an embodiment of the present disclosure, a method performed by a station (STA) in a wireless local area network (LAN) system comprises the steps of: detecting a frame transmitted from a second access point (AP) sharing a transmission opportunity (TXOP) with a first AP connected to the STA; identifying a duration field of the frame; on the basis of the duration field of the frame being configured to have a value smaller than a value corresponding to the entire TXOP period, omitting setting of a network allocation vector (NAV) during at least a portion of the entire TXOP period; and performing frame exchange with the first AP within at least a portion of the entire TXOP period in which the setting of the NAV is omitted.

Abstract: A method and a device for performing TID-to-link mapping in a wireless LAN system are disclosed. A method of performing link management by an STA MLD in a wireless LAN system may comprise the steps of: receiving a first frame including first information related to link mapping of a plurality of TIDS from an AP MLD; and transmitting, to the AP MLD, a second frame including second information indicating whether to request updating of link mapping of at least one TID among the plurality of TIDs and third information related to updating of link mapping of the at least one TID.

Abstract: The present disclosure relates to identification related to roaming in a wireless LAN system. According to an embodiment of the present disclosure, a method performed by a mobile device in a wireless LAN system comprises the steps of performing a connection procedure with a first access point (AP) affiliated with a first multi-link device (MLD); acquiring a group identifier (ID) of a roaming group including the first MLD; transmitting, to a second MLD included in the roaming group, a request frame for requesting roaming, the request frame including the group ID; and on the basis of receiving a response frame including the group ID, performing roaming by means of the second MLD.

Abstract: Proposed are a method and an apparatus for transferring information requested by a non-AP STA for P2P transmission to an AP in a wireless LAN system. Specifically, a first receiving STA receives a QoS data frame or a QoS null frame from a transmitting STA. The first receiving STA receives a MU-RTS TXS frame from the transmitting STA. The first receiving STA transmits data to a second receiving STA on the basis of the MU-RTS TXS frame. The QoS data frame or the QoS null frame includes a TXS control frame. The TXS control frame includes first information on a time required for transmission of the data and second information on a bandwidth required for the transmission of the data. The MU-RTS TXS frame includes third information on a time allocated for transmitting the data and fourth information on a bandwidth allocated for transmitting the data.

Abstract: A method and a device for transmitting/receiving information about a restricted target wake time in a wireless LAN system are disclosed. The method performed by an STA in a wireless LAN system, according to one embodiment of the present disclosure, may comprise the steps of: receiving, from a first AP, a frame including information about an R-TWT; and transmitting or receiving a PPDU to or from a second AP on the basis of the information about the R-TWT.

Abstract: A method and a device for receiving a multi-RA A-MPDU in a wireless LAN system are proposed. Specifically, a first and a second receiving STA receive a PPDU from a transmitting STA. The first and the second receiving STA decode the PPDU. The PPDU includes a signal field and a first A-MPDU. The signal field includes a first RU allocation subfield. The first RU allocation subfield includes information on the number of RAs configured in the first A-MPDU and the size of an RU or an MRU to which the first A-MPDU is allocated. The RAs configured in the first A-MPDU include a first RA for the first receiving STA and a second RA for the second receiving STA.

Abstract: Disclosed are a method and device for sharing TXOP in a wireless LAN system. A method performed by a first AP according to one embodiment of the present disclosure may comprise the steps of: receiving a first trigger frame from a second AP, wherein the first trigger frame includes information about time allocated to the first AP within TXOP obtained by the second AP; and performing transmission or reception of STA and PPDU within the allocated time.

Abstract: A method and a device for performing communication in a wireless LAN system are disclosed. A method by which a first station (STA) performs communication in a wireless LAN system may comprise the steps of: receiving, from an access point (AP), first information related to a restricted target wake time (r-TWT); receiving, from the AP, second information related to the extension of the end time of a service period (SP) of the r-TWT; and transmitting, to the AP, third information indicating whether to maintain an awake state until the end time of the extended SP.

Abstract: A method and a device for transmission or reception in an enhanced triggered transmission opportunity sharing procedure in a wireless LAN system are disclosed. The method performed by an STA in a wireless LAN system, according to one embodiment of the present disclosure, may comprise the steps of: receiving, from an AP, a trigger frame related to sharing of a TXOP; transmitting, to the AP, a response frame for the trigger frame; and, on the basis of the trigger frame, performing frame exchange with another STA in a time interval allocated to the STA.