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.

Abstract: In a wireless local area network (WLAN) system, a station (STA) may support a multi-link. The STA may generate a PDDU including operation mode information on whether transmission of a signal and reception of a signal can be performed simultaneously. The STA may transmit the PPDU.

Abstract: A method in a wireless local area network (WLAN) includes receiving, from an access point (AP) by a station (STA), a beacon frame comprising a first field related to a transmission time of a trigger frame, wherein the trigger frame includes frequency resource information to be used for an uplink multi-user (UL MU) transmission, wherein the frequency resource information to be included in the trigger frame includes at least one of first type resource information used for random access and second type resource information used for scheduled access, wherein the random access is performed by the STA based on orthogonal frequency division multiple access (OFDMA), wherein the beacon frame further comprises a second field related to whether or not the trigger frame includes the first type resource information; receiving, from the AP by the STA, the trigger frame based on the first field; determining, by the STA, UL resource to be used for the UL MU transmission based on the first type resource information and the se

Abstract: An example according to the present specification relates to a method for performing low latency communication. A transmission STA and a reception STA may exchange a low latency communication request frame and a low latency communication response frame. The low latency communication request frame may include first information for performing the low latency communication. The first information may include at least one among information for requesting parameters for the low latency communication and information about traffic. In addition, the low latency communication response frame may include second information for performing the low latency communication. The second information may include information about the parameters for the low latency communication. The reception STA and the transmission STA may perform the low latency communication with the transmission STA on the basis of the first information and the second information.

Abstract: A method for performing communication based on a power saving operation in a wireless LAN system according to an embodiment includes: receiving, by a first wireless terminal including a main radio module and a wake-up radio (WUR) module for receiving a wake-up packet modulated with on-off keying (OOK), the wake-up packet from a second wireless terminal based on the WUR module in a WUR mode in which the WUR module is controlled to alternate between a turn-on state and a turn-off state based on a power state of the main radio module, the wake-up packet including information related to an individually addressed frame for the first wireless terminal; and controlling, by the first wireless terminal, the main radio module such that the main radio module is in an awake state in a predetermined service period related to the main radio module when a predetermined time has elapsed after reception of the wake-up packet.

Abstract: In a wireless local area network system, a sharing access point (AP) may determine a long training field (LTF) subcarrier pattern for each of multiple streams, wherein an LTF symbol is used for at least one stream among a first to a third stream, the number of the LTF symbols is determined on the basis of the number of antennas of a shared AP having the maximum number of antennas among multiple shared APs associated with the sharing AP, and the first to the third stream are assigned different subcarrier patterns. The sharing AP may transmit information associated with the LTF subcarrier pattern.

Abstract: Proposed are a method and a device for transmitting data in a wireless LAN system. Specifically, a transmission device receives configuration information of a multi-band formed by aggregating first to third bands. The transmission device carries out channel sensing on the first to third bands. The transmission device transmits data to a receiving device on the basis of the result of the channel sensing. The first band comprises a first primary channel and a first secondary channel; the second band comprises a second primary channel and a second secondary channel; and the third band comprises a third primary channel and a third secondary channel.

Abstract: A method by which a station (STA) receives a frame in a wireless (WLAN) according to an embodiment of the present disclosure includes: receiving a first wake-up frame through wake-up radio (WUR); monitoring primary connectivity radio (PCR) according to reception of the first wake-up frame; and receiving a PCR beacon frame through the PCR, wherein the STA maintains monitoring of the WUR for a predetermined period while monitoring the PCR and ends monitoring of the WUR when the STA detects a second wake-up frame indicating transmission of unicast data through the WUR or succeeds in transmitting an uplink (UL) PCR frame to an access point (AP) even before the predetermined period has elapsed.

Abstract: According to one embodiment of the present specification, an STA may be connected to a primary AP and a secondary AP simultaneously. The STA may acquire control information related to whether the secondary AP can acquire a transmission/reception signal of the primary AP. Thereafter, the STA may transmit a UL signal to the primary AP. The STA may transmit, on the basis of whether the secondary AP can acquire the transmission/reception signal of the primary AP, a block acknowledgement request (BAR) signal for a UL signal to the secondary AP.

Abstract: A method and a device for transmitting data in a wireless LAN system are proposed. Specifically, an AP transmits a band switch announcement element through a first band supported by a first and a second RF. The AP changes the first band, supported by the second RF, to a second band on the basis of the band switch announcement element. The AP transmits first data to an STA through the first band supported by the first RF and the second band supported by the second RF. The first data is transmitted through a multiple band in which the first band and the second band are combined.

Abstract: Proposed are a method and an apparatus for transmitting data in a wireless LAN system. Particularly, an AP transmits a PPDU to one STA. The AP transmits data to the one STA over a first NCCB band or a second NCCB band on the basis of the PPDU. The PPDU includes a first signal field and a second signal field. The first NCCB band is a 40 MHz or 60 MHz band generated by bonding a discontinuous 20 MHz band in an 80 MHz band. The second NCCB band is an 80 MHz, 100 MHz, 120 MHz, or 140 MHz band generated by bonding a discontinuous 20 MHz band in a 160 MHz band. The first signal field includes first information and second information. The first information is NCCB indication information on whether or not an NCCB can be performed. The second information is NCCB bandwidth information for a band to be used for transmitting the PPDU from the first NCCB band and the second NCCB band.

Abstract: A station (STA) can transmit a first physical protocol data unit (PPDU) including a plurality of first constellation symbols related to initial transmission in a wireless location area network system. The first PPDU includes a first resource unit (RU), and the plurality of first constellation symbols can be assigned to a plurality of subcarriers within the first RU on the basis of a first assignment pattern. The STA can receive a retransmission request related to the first PPDU. The STA can transmit a second PPDU including a plurality of second constellation symbols related to retransmission. The second PPDU includes a second RU, and the plurality of second constellation symbols can be assigned to a plurality of subcarriers within the second RU on the basis of a second assignment pattern.

Abstract: One example according to the present specification relates to a scheme for transmitting a PPDU in a wireless LAN (WLAN) system. A transmission STA can determine whether both a first channel and a second channel are idle. The transmission STA can configure backoff count values associated with the first channel and the second channel. The transmission STA can reduce the backoff count values on the basis of the first channel and the second channel. The transmission STA can transmit an NGV PPDU on the basis of the backoff count values.

Abstract: A method for supporting dual connectivity performed by a STA connected to a first AP and a second AP in a WLAN according to one embodiment includes: determining whether a predetermined AP change condition is satisfied while performing uplink transmission based on a first operating band for the first AP; transmitting an AP change request frame to the first AP in order to perform uplink transmission based on a second operating band for the second AP when it is determined that the AP change condition is satisfied; receiving an AP change response frame from the first AP in response to the AP change request frame; performing a channel switch operation from the first operating band to the second operating band when the AP change request frame is received; and transmitting an uplink frame to the second AP based on the second operating band.

Abstract: Provided are a method and device for receiving data in a wireless LAN system. Particularly, an STA transmits an operating band negotiation request frame to an AP by means of a first band supported by first and second RFs. The STA receives an operating band negotiation response frame from the AP by means of the first band as a response to the operating band negotiation request frame. The STA changes the first band supported by the second RF into a second band on the basis of the operating band negotiation request frame and the operating band negotiation response frame. The STA receives first data from the AP by means of the first band supported by the first RF and the second band supported by the second RF. The first data is transmitted by means of a multi-band in which the first band and the second band are combined.

Abstract: A method by which an access point (AP) transmits a frame in a wireless LAN, according to one embodiment of the present disclosure, comprises: determining a wake-up radio (WUR) identifier (WID) for identifying a station (STA) and a group identifier (GID) for identifying an STA group to which the STA belongs, in a WUR mode; transmitting the WID and the GID through a primary connectivity radio (PCR) so as to allocate, to the STA, the determined WID and GID; and transmitting, based on the GID or the WID, a WUR frame for waking up a plurality of STAs including the STA operating in the WUR mode, wherein the AP can determine the GID by using a part of an ID space which can be used in the WUR, and determine the WID by using the remaining space excluding the partial ID space used for the GID.

Abstract: One embodiment according to the present specification relates to a method for transmitting, from a first link, information for setting a NAV in a second link. When transmission STA performs communication through a second link, the transmission STA can transmit, through a first link, information for setting the NAV for the second link in another STA. Particularly, the transmission STA can receive, from the second reception STA, a second frame through the second link. The transmission STA can transmit, to a first reception STA, a first frame through the first link during the reception of the second frame. The first frame can include information for setting the NAV for the second link. The first reception STA can set the NAV for the second link on the basis of the first frame.

Abstract: According to one embodiment of the present disclosure, a method by which a station (STA) receives a wake-up radio (WUR) frame in a wireless LAN (WLAN) comprises the steps of: entering a WUR duty cycle mode in which an on-duration for which a WUR receiver of the STA is awake and an off-duration for which the WUR receiver of the STA is sleeping are alternately repeated; and turning on a primary connectivity radio (PCR) when a WUR frame is detected in the on-duration of the WUR duty cycle mode, wherein, when the WUR frame indicates reception of a PCR beacon frame or a delivery traffic indication map (DTIM), the STA can turn on the PCR after delaying a predetermined time from the detection of the WUR frame according to a time point at which the PCR beacon frame or the DTIM is transmitted.

Abstract: A method for performing uplink transmission in a wireless LAN system according to an embodiment of the present specification may comprise the steps of: receiving, by an AP, a buffer state report frame from a reception STA coupled to the AP, wherein the buffer state report frame is a frame in which a first frame and a second frame are aggregated, the first frame including a first traffic identifier indicating a transmission priority of a first traffic buffered in the reception STA and first queue size information indicating the amount of the buffered first traffic, and the second frame including a second traffic identifier indicating a transmission priority of a second traffic buffered in the reception STA and second queue size information indicating the amount of the buffered second traffic; and transmitting, by the AP, a trigger frame for a plurality of user STAs participating in UL MU transmission on the basis of a buffer state report frame.

Abstract: In a wireless local area network (LAN) system, a first station (STA) may check the transfer failure of a first acknowledgement (ACK) signal for a first frame, the signal being received through a first link. The first STA may transmit report information related to the transfer failure of the first ACK signal to a second STA through a second link. Here, the report information may include identification information associated with the first link. The first STA may receive a second frame from the second STA through the first link. The first STA may transmit a second ACK signal for the second frame to the second STA through the first link on a narrowband.