Abstract: A method performed by a wireless device operating in a wireless network. The method includes generating a physical layer protocol data unit (PPDU) that includes a preamble portion and a data portion, wherein the preamble portion includes a signal field, wherein the signal field includes a bit that is set to binary ‘0’ to indicate that the data portion of the PPDU includes a wake-up receiver preamble and wake-up receiver data. The method further includes wirelessly transmitting the PPDU.

Abstract: Disclosed herein is a method performed by a station (STA) associated with a first access point (AP) operating a first basic service set (BSS) to participate in an overlapping basic service set (OBSS) channel sounding procedure. The method includes receiving a null data packet (NDP) frame transmitted by a second AP operating a second BSS, generating channel state information for a link between the STA and the second AP based on the NDP frame, and responsive to receiving a trigger frame from the first AP that solicits channel state information, transmitting a channel state information feedback frame that is meant to be overheard by the second AP, wherein the channel state information feedback frame includes a multi-user exclusive beamforming report field that is repurposed to carry information other than multi-user exclusive beamforming report information.

Abstract: Disclosed herein is a method performed by a wireless device to insert interference mitigation pilots in a wireless transmission. The method includes mapping data tones of a first tone plan for a first resource unit size to a subset of data tones of a second tone plan for a second resource unit size that is larger than the first resource unit size, assigning remaining data tones of the second tone plan that are not included in the subset of data tones to be interference mitigation pilot tones, and transmitting an orthogonal frequency division multiplexing (OFDM) symbol in a resource unit having the second resource unit size in accordance with the mapping and the assignment.

Abstract: An embodiment is a method performed by a first wireless device in a wireless network to transmit a multi-power and multi-rate aggregated physical layer service data unit (A-PSDU) to allow low latency transmission in the wireless network. The method includes wirelessly transmitting the multi-power and multi-rate A-PSDU, wherein the multi-power and multi-rate A-PSDU includes a plurality of PSDUs, wherein one or more of the plurality of PSDUs are transmitted using a first transmission power and a first rate and one or more of the PSDUs are transmitted using a second transmission power that is lower than the first transmission power and a second rate that is more robust than the first rate, wherein low latency transmission by other wireless devices is allowed during the transmission of the one or more PSDUs that are transmitted using the second transmission power and the second rate.

Abstract: Disclosed herein is a method performed by an access point (AP) operating a basic service set (BSS) to decide whether to perform non-primary channel access (NPCA) channel switching. The method includes responsive to detecting an overlapping basic service set (OBSS) transmission in a primary channel of the BSS, determining whether there is data to process between the AP and stations (STAs) associated with the AP and responsive to determining that there is data to process between the AP and the STAs, switching from the primary channel of the BSS to a NPCA primary channel of the BSS to perform the NPCA.

Abstract: Spectral efficiency in dense multi-access point wireless networks is improved by combining coordinated spatial reuse and coordinated beamforming/nulling schemes. Access points are classified as sharing or shared based on medium access control, and stations are categorized into largest and smallest coordination gain areas. Coordinated spatial reuse is applied to non-overlapping stations in a small coordination gain area, while coordinated beamforming/nulling is used for overlapping stations in a largest coordination gain area. The shared access point adjusts its transmit power to minimize interference. Channel state information feedback overhead is reduced by considering only links related to the largest coordination gain area. The proposed method increases spectral efficiency, reduces overhead, and enhances coverage compared to using coordinated spatial reuse or coordinated beamforming/nulling alone.

Abstract: Disclosed herein is a method performed by a first access point (AP) to perform an overlapping basic service set (OBSS) channel sounding procedure. The method includes transmitting a null data packet announcement (NDPA) frame to cause a second AP operating a second BSS to transmit a null data packet (NDP) frame, wherein the NDPA frame includes an indication of a transmit power that the second AP is to use for transmitting the NDP frame and transmitting a trigger frame to cause a station (STA) that belongs to the first BSS to transmit a channel state information feedback frame, wherein the STA transmits the channel state information feedback frame using a transmission scheme that is determined based on the transmit power indicated in the NDPA frame.

Abstract: Disclosed herein is a method performed by a first access point (AP) to perform an overlapping basic service set (OBSS) channel sounding procedure. The method includes transmitting a null data packet announcement (NDPA) frame to cause a second AP operating a second BSS to transmit a null data packet (NDP) frame, determining a transmission scheme that a station (STA) that is associated with the first AP is to use for transmitting a channel state information feedback frame based on information included in the NDP frame transmitted by the second AP, and transmitting a trigger frame to the STA to cause the STA to transmit the channel state information feedback frame, wherein the trigger frame includes an indication of the transmission scheme that the STA is to use for transmitting the channel state information feedback frame.

Abstract: A method performed by a wake-up receiver station in a wireless network. The method includes wirelessly receiving, via the main radio, a beacon frame from an access point, wherein the beacon frame includes information regarding a restricted access window (RAW) that is allocated for one or more wake-up receiver stations forming a RAW group of the RAW, and responsive to determining that the wake-up receiver station is part of the RAW group, transitioning from being in a deep sleep mode to being in a normal sleep mode when the RAW begins, wherein when the wake-up receiver station is in the deep sleep mode, both the main radio and the wake-up receiver are turned off, wherein when the wake-up receiver station is in the normal sleep mode, the main radio is turned off but the wake-up receiver is turned on.

Abstract: Disclosed herein is a method performed by a wireless device to poll candidate shared APs regarding participation in coordinated time division multiple access (c-TDMA). The method includes transmitting a first control frame to poll candidate shared APs regarding participation in the c-TDMA, wherein the first control frame includes an indication of a primary traffic priority level of traffic to be transmitted during the c-TDMA, receiving, from one or more candidate shared APs as a response to the first control frame, one or more first response frames indicating that the one or more candidate shared APs are interested in participating in the c-TDMA, and selecting one of the one or more candidate shared APs that responded to the first control frame to participate in the c-TDMA based on information included in the one or more first response frames received from the one or more candidate shared APs.

Abstract: Disclosed herein is a method performed by a sharing access point (AP) to be able to receive a transmission opportunity (TXOP) return frame during coordinated time division multiple access. The method includes providing a temporary channel access parameter set (TCAPS) to a station (STA) associated with the sharing AP, wherein the TCAPS includes a duration parameter indicating a duration for which the STA is to apply the TCAPS, wherein the duration is sufficiently long to encompass a portion of a TXOP that is to be allocated to a shared AP. The method further includes performing a frame exchange with the STA that causes the STA to apply the TCAPS for the duration, transmitting a TXOP sharing frame to the shared AP to allocate the portion of the TXOP to the shared AP, and receiving the TXOP return frame from the shared AP.

Abstract: Disclosed herein is a method performed by a wireless device belonging to a basic service set (BSS) to perform non-primary channel access (NPCA). The method includes maintaining local overlapping basic service set (OBSS) information set and peer OBSS information set for a peer wireless device. The peer OBSS information set includes information regarding whether the peer wireless device can obtain NPCA information from preambles transmitted by one or more OBSSs and information regarding rates or modulation coding schemes receivable by the peer wireless device from the one or more OBSSs. The method further includes determining, based on the peer OBSS information set for the peer wireless device, whether the peer wireless device can perform NPCA during transmission of the PPDU and performing NPCA with the peer wireless device in a NPCA primary channel in response to determining that the peer wireless device can perform NPCA.

Abstract: A method performed by a wireless device operating as an access point in a wireless network to allocate a restricted access window (RAW) for wake-up receiver stations. The method includes generating a beacon frame, wherein the beacon frame includes information regarding a RAW that is allocated for one or more wake-up receiver stations, wherein each of the one or more wake-up receiver stations includes a main radio and a wake-up receiver and wirelessly transmitting the beacon frame.

Abstract: A method is performed by a station (STA). The method includes the steps of receiving, from an access point (AP), an indication of whether to use a preamble detection NPCA channel switching approach or a control frame detection NPCA channel switching approach, overhearing a PPDU transmitted in a primary channel, and determining whether NPCA can be performed in a NPCA primary channel during transmission of the PPDU using the preamble detection NPCA channel switching approach or the control frame detection NPCA channel switching approach depending on the indication received from the AP.

Abstract: A method performed by a wireless device to extend an effective transmission range of a physical layer protocol data unit (PPDU). The method includes transmitting a PPDU that includes a preamble and a data field, wherein the data field is transmitted in a plurality of distributed-tone resource units (dRUs) each carrying a same set of data symbols. A different mapping of the same set of data symbols to tone positions may be used in different ones of the plurality of dRUs to increase frequency diversity.

Abstract: A notch filter is coupled to a first input node and a second input node, and is configured to present a capacitive load to a differential signal provided to the first and second input nodes, and to present a series-resonant inductive-capacitive load to a common-mode signal provided to the first and second input nodes. The notch filter includes a transformer and a capacitor bank. The transformer includes a first winding having a positive-polarity terminal coupled to the first input node and a second winding having a positive-polarity terminal coupled to the second input node. The capacitor bank includes a first capacitor coupled between a negative-polarity terminal of the first winding and a bias node, and a second capacitor coupled between a negative-polarity terminal of the second winding and the bias node. The first and second capacitors may be variable capacitors.

Abstract: Disclosed herein is a method performed by a wireless device belong to a basic service set (BSS) to dynamically select a non-primary channel access (NPCA) primary channel. The method includes determining a bandwidth occupied by signals in an overlapping basic service set (OBSS), determining the NPCA primary channel to use for performing NPCA in the BSS based on the bandwidth occupied by the signals in the OBSS, and performing the NPCA in the BSS using the determined NPCA primary channel.

Abstract: Disclosed herein is a method performed by a wireless device to perform non-primary channel access (NPCA). The method includes overhearing a control frame and a corresponding response frame transmitted in a primary channel in an overlapping basic service set (OBSS), extracting bandwidth information from a field of the control frame, determining an available non-primary channel based on a bandwidth indicated by the bandwidth information, and performing NPCA in the determined available non-primary channel in the BSS after overhearing the response frame.

Abstract: An embodiment is method performed by a wireless device to allow preemption in a wireless network. The method includes wirelessly transmitting a first preemption physical layer protocol data unit (PPDU) that includes a complete preamble followed by one or more subsequent preemption PPDUs that each include a reduced preamble, wherein the complete preamble includes one or more preamble fields that are omitted in the reduced preamble, wherein the first PPDU and the one or more subsequent preemption PPDUs are transmitted with a predefined interframe space interval between PPDU transmissions during which preemption is allowed.

Abstract: A method performed by a wireless device operating in a wireless network, wherein the wireless device includes a main radio and a wake-up receiver. The method includes detecting, by a first component of the wake-up receiver, a wake-up receiver preamble in a wireless transmission received by the wireless device and waking up a second component of the wake-up receiver in response to detecting the wake-up receiver preamble.