Abstract: Methods, apparatuses, and computer readable media for an access point (AP), where an apparatus of an AP comprises processing circuitry configured to: decode a first defer signal frame, determine the first defer signal frame is from a station (STA) associated with the AP, and encode, for transmission, in a subsequent contention period a second defer signal frame. The processing is further configured to: determine the first defer signal is from the STA associated with the AP based on one of: a basic service set (BSS) subfield in a physical (PHY) portion of the first signal frame, a transmitter address in a media access control (MAC) portion of the first defer signal frame, a receiver address in the MAC portion of the first defer signal frame, or a service field of the first signal field.

Abstract: For example, an Access Point (AP) may be configured to transmit a frame including a prioritized-access enabled/disabled field to indicate whether a prioritized-access contention mechanism is to be enabled or disabled over a wireless medium. For example, the prioritized-access contention mechanism may be configured to allow a prioritized station (STA) to transmit a reservation signal over the wireless medium at a reservation signal transmission time, and to contend the wireless medium according to a high-priority contention policy to obtain a Transmit Opportunity (TxOP) after transmission of the reservation signal. For example, the reservation signal transmission time may be based on an end of a predefined time duration from a start of a contention period. For example, the reservation signal may be configured to indicate a busy Clear Channel Assessment (CCA) to a receiving STA.

Abstract: This disclosure describes systems, methods, and devices related to channel access for multi-link devices (MLDs). A MLD may identify a first backoff count associated with a first enhanced distributed channel access function (EDCAF) for a first communication link used by the MLD; identify a second backoff count associated with a second EDCAF for a second communication link used by the MLD, the first backoff count less than the second backoff count; determine a time period after that the first backoff count reaches zero and during which to refrain from transmitting using the first communication link, the time period based on the second backoff count; determine that the first communication link transitioned from an idle state to a busy state during the time period; and generate a third backoff count associated with the first EDCAF based on the first communication link transitioning to the busy state during the time period.

Abstract: Methods, apparatuses, and computer readable media for secondary channel access where an apparatus of an access point (AP) MLD, apparatus of a non-AP MLD, apparatus of a station (STA), or an apparatus of an AP comprises processing circuitry configured to: decode, from a primary channel, a first a physical layer (PHY) protocol data unit (PPDU), determine whether the PPDU is from an overlapping basic service set (OBSS), and in response to a determination that the PPDU is from the OBSS, perform an energy detection on a secondary channel. Different energy detection levels may be used than for the primary channel and the apparatus may wait a transition delay before performing the energy detection.

Abstract: This disclosure describes systems, methods, and devices related to enhanced multi-link single-radio (EMLSR). A device may utilize multiple links in a time-shared manner. The device may assign one of the multiple links as a primary link for legacy STAs. The device may assign remaining links as non-primary links. The device may initiate a transmit opportunity (TXOP) on a non-primary link when the primary link is occupied. The device may transmit a control frame from a non-primary link in response to an initial control frame when the primary link is idle, wherein the control frame indicates discontinuation of frame exchange on the non-primary link.

Abstract: For example, an Access Point (AP) may be configured to determine that a high-priority contention period is to be initiated during a particular contention period. For example, the AP may be configured to determine that the high-priority contention period is to be initiated during the particular contention period based on a reservation signal received from a station (STA) over a wireless medium during the particular contention period. For example, the AP may be configured to allow the AP to contend the wireless medium during the high-priority contention period according to a high-priority contention policy, for example, to obtain a Transmit Opportunity (TxOP) for transmission of downlink (DL) data to one or more STAs.

Abstract: For example, a wireless communication Station (STA) may be configured to generate a preamble of a Physical Layer (PHY) Protocol Data Unit (PPDU) according to a PPDU frame format. For example the STA may be configured to generate a data payload of the PPDU according to the PPDU frame format. For example, the data payload may include a plurality of data payload portions. For example, the PPDU may include a predefined Training Field (TF) between a first data payload portion and a second data payload portion of the plurality of data payload portions. For example, the STA may be configured to transmit the PPDU.

Abstract: This disclosure describes systems, methods, and devices related to enhanced channel efficiency. A device may enable utilization of a secondary channel within a Wi-Fi network when a primary channel is engaged. The device may monitor a status of the primary channel while it is busy. The device may assess a presence of energy in the primary channel using Clear Channel Assessment (CCA) during a receiving mode. The device may provide the status of the primary channel via a block acknowledgment during frame exchanges on the secondary channel when the primary channel is determined to be idle. The device may instruct a switch back to the primary channel through a broadcast frame or a unicast frame.

Abstract: This disclosure describes systems, methods, and devices related to Enhanced Multi-Link Single-Radio (EMLSR). A device may initiate a frame exchange using an initial control frame with constraints regarding transmission format and data rate, starting a Transmit Opportunity (TXOP) in EMLSR operation. The device may select a communication link from multiple available links based on the link availability and/or Out of Band Station (OBSS) transmission status. The device may define a predetermined time period for EMLSR service and manage frame exchanges within this period. The device may transition to a listening operation once a predefined EMLSR service period is completed.

Abstract: For example, a wireless communication station (STA) may be configured toto transmit a reservation signal over a wireless medium at a reservation signal transmission time, for example, based on a determination that high-priority data of a high-priority Access Category (AC) is queued at the STA. For example, the reservation signal transmission time may be based on an end of a predefined time duration from a start of a contention period. For example, the reservation signal may be configured to indicate a busy Clear Channel Assessment (CCA) to a receiving STA. For example, the STA may be configured to contend the wireless medium according to a high-priority contention policy, for example, after transmission of the reservation signal, to obtain a Transmit Opportunity (TxOP) for transmission of the high-priority data.

Abstract: This disclosure describes systems, methods, and devices related to enhanced aggregate preemption. A device may divide a transmit opportunity (TXOP) transmission into physical layer convergence procedure service data unit (PSDU) or physical layer (PHY) convergence protocol data unit (PPDU) transmissions. The device may establish fixed time intervals between two continuous PSDU or PPDU transmissions. The device may sense an idle status of a channel after an end of each PSDU or PPDU transmission. The device may send a first suspend request (SR) control frame after an end of receiving a current PSDU or PPDU transmission.

Abstract: This disclosure describes systems, methods, and devices related to multi-link operation. A device may configure a single N×N transmit (TX)/receive (RX) radio to a plurality of 1×1 TX/RX radios, where N is a positive integer. The device may monitor a first channel of a plurality of channels to determine its availability. The device may monitor a second channel of the plurality of channels to determine its availability. The device may identify a first control frame received from an access point (AP) multi-link device (MLD) on the second channel. The device may cause to send a second control frame to the AP MLD on the second channel. The device may configure back to a single N×N TX/RX radio to receive a data frame.

Abstract: Embodiments of a beacon interval with boundary time points (BTPs) to improve latency for time sensitive traffic (TST) in Extremely High Throughout (EHT) WLANS are disclosed herein. In some embodiments, a non-access point (AP) station (STA) is configured to decode a beacon frame received from an AP STA. The beacon frame may indicate one or more BTPs within a beacon interval (BI). The non-AP STA may obtain a transmission opportunity (TXOP) for a transmission to the AP STA. The TXOP may be bounded by the one or more BTPs. The non-AP STA may encode a PPDU for transmission to the AP STA during the TXOP.

Abstract: For example, a first non Access Point (AP) (non-AP) wireless communication station (STA) and/or an AP may be configured to communicate End to End (E2E) Quality of Service (QoS) information corresponding to an E2E traffic flow. For example, the non-AP STA may be configured to set E2E QoS information in a Stream Classification Service (SCS) descriptor element. For example, the E2E QoS information may be configured to indicate an E2E QoS requirement for an E2E traffic flow to be communicated between the first non-AP STA and a second non-AP STA. For example, the non-AP STA may be configured to transmit an SCS request to the AP. For example, the SCS request may include the SCS descriptor element.

Abstract: This disclosure describes systems, methods, and devices related to scheduling asynchronous transmissions by other access point (AP) devices in a multi-AP environment. A method may include a coordinating AP identifying a first time for a first coordinated AP device to send a first physical layer (PHY) protocol data unit (PPDU) using a first frequency segment; identifying a second time different than the first time for a second coordinated device to send a second PPDU using a second frequency segment; generating one or more frames comprising indications that the first AP device is to send the first PPDU using the first frequency segment and that the second AP device is to send the second PPUD using the second frequency segment; and causing to send the one or more frames to the first coordinated AP device and the second coordinated AP device.

Abstract: For example, an Access Point (AP) may be configured to set an Association Identifier (AID) field to a predefined AID value. For example, the predefined AID value may be configured to indicate that a non-AP station (STA) having latency-sensitive traffic is to be allowed to transmit a non-Trigger-Based (non-TB) Physical layer (PHY) Protocol Data Unit (PPDU) including the latency-sensitive traffic according to a channel contention mechanism during a contention-based time period. For example, the AP may be configured to transmit a trigger frame to allocate the contention-based time period. For example, the trigger frame may include the AID field.

Abstract: For example, a wireless communication station (STA) may be configured to set a channel bandwidth (BW) field to indicate a channel BW. For example, the STA may be configured to set airtime information in an airtime field. For example, the airtime information may be configured to indicate a required time duration for the STA to communicate one or more frame exchanges of a Quality of Service (QoS) flow over the channel BW. For example, the STA may be configured to transmit a frame to an Access Point (AP). For example, the frame may be configured to include the channel BW field and the airtime field.

Abstract: This disclosure describes systems, methods, and devices related to low latency preemption. A device may divide a first PPDU into a plurality of segmented PPDUs. The device may insert a plurality of time gaps between the plurality of segmented PPDUs, wherein the plurality of time gaps enable preemptive opportunities by a low latency transmitter. The device may identify a preemption request from a low latency transmitter of the one or more station devices during a first time gap between a first segmented PPDU and a second segmented PPDU. The device may preempt the second segmented PPDU based on a preemption bit in order to allow the low latency transmitter to transmit its low latency data.

Abstract: Embodiments of a beacon interval with boundary time points (BTPs) to improve latency for time sensitive traffic (TST) in Extremely High Throughout (EHT) WLANS are disclosed herein. In some embodiments, a non-access point (AP) station (STA) is configured to decode a beacon frame received from an AP STA. The beacon frame may indicate one or more BTPs within a beacon interval (BI). The non-AP STA may obtain a transmission opportunity (TXOP) for a transmission to the AP STA. The TXOP may be bounded by the one or more BTPs. The non-AP STA may encode a PPDU for transmission to the AP STA during the TXOP.

Abstract: Embodiments of an access point (AP) configured for extremely high throughput (EHT) operation may be configured to operate as a triggering AP for a trigger-based (TB) peer-to-peer (P2P) communication between a triggered direct (TD) station (STA) and a TD peer STA. The AP may encode a Direct Link Announcement (DiL-A) frame to schedule the TD STA for a direct link transmission to the TD peer STA. The DiL-A frame may be encoded to include a Duration/ID field. The AP may set the Duration/ID field of the DiL-A frame to a remaining duration of a transmission opportunity (TXOP) when the TD peer STA is an EHT STA that supports TB P2P operation (e.g., to allow the TD peer STA to ignore the NAV set by the DiL-A frame). The AP may set the Duration/ID field of the DiL-A frame to a response time for the TD STA to respond to the DiL-A frame when the TD Peer STA is a legacy STA (e.g., to allow the TD peer STA to set its NAV based on the response time).