Abstract: This disclosure provides methods, components, devices and systems for 100 MHz transmission. Some aspects more specifically relate to 100 MHz transmission in a defined bandwidth in which a 160 MHz PPDU is supported. In some examples, based on the country code in a beacon frame indicating a country in which a 160 MHz PPDU is supported within a defined bandwidth, wireless communications devices may communicate 100 MHz transmissions within the defined bandwidth. For example, the 100 MHz transmission may be within the lower 100 MHz band of the 160 MHz defined bandwidth. In various aspects, the 100 MHz transmission may include an 80 MHz subband in the lower 80 MHz subband of the 160 MHz PPDU bandwidth and a 20 MHz subband in the upper 80 MHz subband of the 160 MHz PPDU bandwidth. In some aspects, the defined bandwidth may be the 5735 MHz to 5895 MHz band.

Abstract: This disclosure provides methods, components, devices and systems for signaling for transmission modes among access points (APs). Some aspects more specifically relate to signaling and physical layer protocol date unit (PPDU) formats for implementing coordinated communications among multiple APs, such as for one or more transmission modes, which may include a coordinated beamforming (COBF), a coordinated spatial reuse (C-SR), an interference mitigation (IM), or a vendor specific (VS) transmission mode. In some examples, a first AP may transmit first information in a first subset of bits of a universal signal (U-SIG) field, that indicates a transmission mode of the multiple transmission modes associated with a shared transmission opportunity (TXOP). Different subsets of bits within the U-SIG field may indicate the transmission mode of the shared TXOP and one or more associated parameters of one or both of the APs.

Abstract: This disclosure provides methods, components, devices and systems for coordinated spatial reuse in Wi-Fi, such as a coordinated beamforming (COBF) transmission mode or a coordinated spatial reuse (C-SR) transmission mode. Some aspects more specifically relate to a sharing access point (AP) and shared AP exchanging communications that facilitate the utilization of a transmission mode. In some implementations, a first AP may transmit, to a second AP, a message that includes first information associated with coordinated transmissions in which the first AP and the second AP concurrently transmit to one or more associated stations (STAs). The first information may include one or more of transmit power information for the coordinated transmissions, alignment information for the coordinated transmissions, or a transmission mode. The first AP and the second AP may proceed with coordinated communications within a shared transmission opportunity using the COBF transmission mode or the C-SR transmission mode.

Abstract: Certain aspects of the present disclosure provides a method for signaling support for optional wireless features. According to certain aspects, an apparatus (e.g., an AP or non-AP STA) outputs at least one first element that indicates a capability of the apparatus to support one or more features considered optional for a communication session, obtains at least one second element that indicates a capability of a wireless node to support the one or more features for the communication session, and participates in the communication session with the wireless node in accordance with the capability indicated in at least one of the first element or the second element.

Abstract: This disclosure provides methods, components, devices and systems for interference mitigation (IM) mode signaling designs for a physical layer protocol data unit (PPDU). Some aspects relate to IM mode signaling designs according to which a wireless communication device determines a tone plan in accordance with an ON or OFF state of the IM mode. For example, an ON state of the IM mode may correspond to a first tone plan and an OFF state of the IM mode may correspond to a second tone plan. The first tone plan may define first fixed pilot tone locations, with pilot tones at the first fixed pilot tone locations being usable as IM pilot tones and/or usable as carrier frequency offset (CFO) pilot tones. The second tone plan may define second fixed pilot tone locations, with pilot tones at the second fixed pilot tone locations being exclusively usable as CFO pilot tones.

Abstract: This disclosure provides methods, components, devices and systems for interference mitigation (IM) mode signaling designs for a physical layer (PHY) protocol data unit (PPDU). Some aspects relate to IM mode signaling designs according to which two or more wireless communication devices may determine locations of IM pilot tones within a data portion of a PPDU. In some examples, the wireless communication device may input IM pilot tones prior to a spatial mapping stage in a transmit flow. In such examples, the wireless communication device may insert the IM pilot tones at fixed locations within the data portion of the PPDU and may support an interleaving stage such that the IM pilot tones are factored in. The interleaving stage may be associated with a tone mapping distance or an interleaver that is specific to scenarios in which the IM mode is set to an ON state.

Abstract: This disclosure provides methods, components, devices and systems for interference mitigation (IM) mode signaling designs for a physical layer protocol data unit (PPDU). Some aspects relate to IM mode signaling designs according to which two or more wireless communication devices determine locations of IM pilot tones within a data portion of a PPDU comprising a multiple resource unit (MRU). In such aspects, an MRU may be defined with multiple tone separation distances including a tone separation distance that corresponds to an ON state of the IM mode. Some further aspects relate to IM mode signaling designs according to which two or more wireless communication devices determine locations of pilot tones within a data portion of a PPDU that are usable as IM pilot tones and/or as carrier frequency offset (CFO) pilot tones. In such aspects, the data portion may exclude IM- or CFO-specific pilot tones.

Abstract: This disclosure provides methods, components, devices and systems for interference mitigation (IM) mode signaling designs for a physical layer (PHY) protocol data unit (PPDU). Some aspects relate to IM mode signaling designs according to which two or more wireless communication devices may coordinate on a state associated with an IM mode as part of various communication schemes, such as an orthogonal frequency division multiple access (OFDMA) communication scheme. In some examples, a wireless communication device may indicate, via one or more fields of a message (such as a multi-user (MU) PPDU or a trigger frame), information indicative of a respective state associated with the IM mode for each wireless communication device of a set of multiple wireless communication devices. The one or more fields may include a field that is applicable to the multiple wireless communication devices and/or one or more user information fields.

Abstract: This disclosure provides methods, components, devices and systems for interference mitigation (IM) mode signaling designs for a physical layer (PHY) protocol data unit (PPDU). According to some multi-user (MU) PPDU IM mode signaling designs, a first wireless communication device may indicate, to a second wireless communication device via a preamble portion of a first PPDU, a state associated with the IM mode for the first PPDU. Additionally, or alternatively, the first wireless communication device may indicate, to the second wireless communication device via the preamble portion of the first PPDU, a requested or commanded state associated with the IM mode for PPDU(s) transmitted by the second wireless communication device to the first wireless communication device. In accordance with some example trigger-based (TB) PPDU IM mode signaling designs, a first wireless communication device may indicate a state associated with the IM mode for a TB PPDU via a trigger frame.

Abstract: This disclosure provides methods, components, devices and systems for communication with dynamic sub-channel operation (DSO). Some aspects more specifically relate to aggregated physical layer protocol data units (PPDUs) of different PPDU formats. Some aspects more specifically relate to transmission of a first PPDU of a first PPDU format on the secondary frequency band and a second PPDU of a second PPDU format on the primary frequency band in the same time resource. For example, the first PPDU format may be an ultra-high reliability (UHR) format and the second PPDU format may be a high efficiency (HE) format. In some examples, to aggregate PPDUs in the same time resource on the primary and secondary frequency bands, the data symbol boundaries of the PPDUs may be aligned in time, and accordingly the preambles of the PPDUs may be designed to achieve alignment of the data symbol boundaries.

Abstract: This disclosure provides methods, components, devices and systems for communication with dynamic sub-channel operation (DSO). Some aspects more specifically relate to aggregated physical layer protocol data units (PPDUs) of different PPDU formats. Some aspects more specifically relate to transmission of a first PPDU of a first PPDU format on the secondary frequency band and a second PPDU of a second PPDU format on the primary frequency band in the same time resource. For example, the first PPDU format may be an ultra-high reliability (UHR) format and the second PPDU format may be a high efficiency (HE) format. In some examples, to aggregate PPDUs in the same time resource on the primary and secondary frequency bands, the data symbol boundaries of the PPDUs may be aligned in time, and accordingly the preambles of the PPDUs may be designed to achieve alignment of the data symbol boundaries.

Abstract: This disclosure provides methods, components, devices and systems for performing probabilistic shaping using parallel binary shaping encoders. In some implementations, a data payload or information bit stream may be shaped or distributed across a set of constellation points using multiple separate binary shaping encoders that run independently and in parallel with one another. In particular, the data payload or information bit stream may be divided up into multiple “parallelized” bit streams that correspond to respective bit positions within the data payload, such as most significant bit (MSB) positions and least significant bit (LSB) positions of the data payload. The parallelized bit streams may be input into respective parallel binary shaping encoders, where the binary shaping encoders each alter the probability or distribution of the value of the respective bit positions to adjust the distribution across the symbols of the modulation constellation.

Abstract: This disclosure provides methods, components, devices and systems for rate matching and signaling in probability constellation shaping in Wi-Fi systems. Some aspects more specifically relate to a rate matching algorithm and various rules, calculations, procedures, and signaling designs to support rate matching in conjunction with probability constellation shaping. In some examples, a wireless communication device functioning as a transmitter device may implement a rate matching algorithm to determine a pre-forward error correction (FEC) padding boundary, a pre-FEC padding size, a quantity of codewords, and a post-FEC padding size given a presumed payload size after shaping, a codeword size, and an effective code rate. Additionally, or alternatively, a wireless communication device may indicate information associated with an application of a constellation shaping. Such information may indicate a specific constellation shaping combination or whether constellation shaping is set to an ON or OFF sets, or both.

Abstract: This disclosure provides methods, components, devices and systems for techniques for probabilistic constellation shaping in Wi-Fi systems. Some aspects more specifically relate to a transmitter (e.g., transmitting wireless device) that supports constellation shaping. For example, the transmitter that supports constellation shaping may include a modulator capable of receiving separate streams of parity bits and constellation shaped systematic bits and modulating the separate streams of parity bits and constellation shaped systematic bits, such that a structure of the stream of constellation shaped systematic bits may be maintained during modulation to exploit the constellation shaping. Other aspects more specifically relate to parsing modulated symbols over multiple spatial streams (e.g., after constellation shaping).

Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a wireless device, beamforming information from a plurality of stations. The beamforming information includes feedback signal-to-noise ratio (SNR) values and beamforming feedback matrices. The method further includes determining a metric associated with a candidate group of the plurality of stations based at least in part on the received feedback SNR values and the received beamforming feedback matrices. The metric indicates a correlation between spatial streams of multi-user multiple-input-multiple-output (MU-MIMO) transmissions intended for the stations of the candidate group.

Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes selecting, by a wireless device, a first subset from a first set of candidate multi-user groups of stations. The first subset is based at least in part on first-level grouping metrics associated with the first set of candidate multi-user groups. The method further includes determining second-level grouping metrics associated with a second set of candidate multi-user groups. The second set corresponds to candidate multi-user groups having a greater number of stations or channel vectors than the first set, and the second set is based at least in part on the first subset.

Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a first wireless device, compressed beamforming information from each of a plurality of stations, the compressed beamforming information including a feedback signal-to-noise ratio (SNR) value and compressed feedback matrix. The method also includes determining a multi-user signal-to-interference-plus noise ratio (SINR) metric for each of the plurality of stations based at least in part on the received feedback SNR values and the received compressed feedback matrices.

Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a first wireless device, compressed beamforming information from each of a plurality of stations, the compressed beamforming information including a feedback signal-to-noise ratio (SNR) value and compressed feedback matrix. The method also includes determining a multi-user signal-to-interference-plus noise ratio (SINR) metric for each of the plurality of stations based at least in part on the received feedback SNR values and the received compressed feedback matrices.

Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes selecting, by a wireless device, a first subset from a first set of candidate multi-user groups of stations. The first subset is based at least in part on first-level grouping metrics associated with the first set of candidate multi-user groups. The method further includes determining second-level grouping metrics associated with a second set of candidate multi-user groups. The second set corresponds to candidate multi-user groups having a greater number of stations or channel vectors than the first set, and the second set is based at least in part on the first subset.

Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a wireless device, beamforming information from a plurality of stations. The beamforming information includes feedback signal-to-noise ratio (SNR) values and beamforming feedback matrices. The method further includes determining a metric associated with a candidate group of the plurality of stations based at least in part on the received feedback SNR values and the received beamforming feedback matrices. The metric indicates a correlation between spatial streams of multi-user multiple-input-multiple-output (MU-MIMO) transmissions intended for the stations of the candidate group.