A method and a device for transmitting and receiving PPDU on the basis of FDR in a wireless LAN system are presented. More particularly, an AP transmits a trigger frame to an STA. The AP transmits downlink (DL) PPDU to the STA on the basis of the AP trigger frame. The AP receives uplink (UL) PPDU from the STA on the basis of the trigger frame. The trigger frame includes a first common information field. The first common information field includes a trigger type field, a length field, and a bandwidth field. The length field comprises information on the length of the longest PPDU of the DL PPDU and the UL PPDU. The bandwidth field comprises information on the total bandwidth over which the DL PPDU and the UL PPDU are transmitted. The DL PPDU and the UL PPDU are transmitted and received on the basis of FDR.

A method and a device for transmitting and receiving PPDU on the basis of FDR in a wireless LAN system are presented. More particularly, an AP transmits a trigger frame to an STA. The AP transmits downlink (DL) PPDU to the STA on the basis of the AP trigger frame. The AP receives uplink (UL) PPDU from the STA on the basis of the trigger frame. The trigger frame includes a first common information field. The first common information field includes a trigger type field, a length field, and a bandwidth field. The length field comprises information on the length of the longest PPDU of the DL PPDU and the UL PPDU. The bandwidth field comprises information on the total bandwidth over which the DL PPDU and the UL PPDU are transmitted. The DL PPDU and the UL PPDU are transmitted and received on the basis of FDR.

The present specification proposes a technical feature related to a wake-up radio (WUR) STA. Specifically, proposed is an operation of updating a parameter related to an operation of a WUR mode. For example, the WUR STA may update a parameter related to the WUR mode by receiving an unsolicited frame from an AP while maintaining the WUR mode. The received frame may have a preset action type.

The present specification proposes a technical feature related to a wake-up radio (WUR) STA. Specifically, proposed is an operation of updating a parameter related to an operation of a WUR mode. For example, the WUR STA may update a parameter related to the WUR mode by receiving an unsolicited frame from an AP while maintaining the WUR mode. The received frame may have a preset action type.

In wireless communications for multi-users, a station may receive a trigger frame including a transmitter address field. When the trigger frame is a multi-user request-to-send (MU-RTS) frame eliciting clear-to-send (CTS) frames from a plurality of stations, the station transmit a CTS frame including a first receiver address field in response to the trigger frame. The first receiver address field may be set equal to the transmitter address field. When the trigger frame elicits data frames from a plurality of stations, the station transmit a data frame including a second receiver address field in response to the trigger frame. The second receiver address field may be set to a destination address. Other methods, apparatus, and computer-readable media are also disclosed.

Access points can be mounted in a variety of locations or orientations and can support multiple communications protocols. In some embodiments, an access point includes a main housing and a front housing. The main and front housing are connected by a hinge. A Wi-Fi antenna is included in the front housing in some embodiments. The access point is configured for use in either an open or closed position. When mounted in a vertical position, the front housing can be lowered into a horizontal position, which facilitates a preferred orientation of an antenna with respect to the ground. A first set of cooling fins serves to maintain components of the access point offset from a wall to which the access point is mounted. This facilitates airflow. Additional fins act as a spacer between the main housing and the front housing when the access point is used in a closed position. This facilitates air flow around both sides of the main housing.

Access points can be mounted in a variety of locations or orientations and can support multiple communications protocols. In some embodiments, an access point includes a main housing and a front housing. The main and front housing are connected by a hinge. A Wi-Fi antenna is included in the front housing in some embodiments. The access point is configured for use in either an open or closed position. When mounted in a vertical position, the front housing can be lowered into a horizontal position, which facilitates a preferred orientation of an antenna with respect to the ground. A first set of cooling fins serves to maintain components of the access point offset from a wall to which the access point is mounted. This facilitates airflow. Additional fins act as a spacer between the main housing and the front housing when the access point is used in a closed position. This facilitates air flow around both sides of the main housing.

Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

Method, system, and media for improving a fan experience for an event at a venue with a live audience. Broadly speaking, embodiments of the invention provide techniques for systematizing fan interactions based on automatically detected fan groupings and criteria triggering activation events. Fans are classified into audience groupings based on collected data associated with each fan. Fan interactions map activation criteria (such as activities performed by the fan or purchases made by the fan, information about the event, or the ambient conditions) to activation events that can collect additional data about the fan, incentivize the fan to make a purchase, or improve the fan experience in some other way.