Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method of wireless communications involves encoding bits in Extremely High Throughput (EHT) signaling fields of a packet corresponding to at least one of an Orthogonal Frequency-Division Multiple Access (OFDMA) mode, a non-OFDMA mode, and a Null Data Packet (NDP) mode, wherein EHT signaling fields include a Universal signal (U-SIG) field and an EHT signal (EHT-SIG) field, and transmitting the packet with encoded bits corresponding to at least one of the OFDMA mode, the non-OFDMA mode, and the NDP mode.

Abstract: A communication device generates one or more physical layer (PHY) PHY protocol service data units (PSDUs) of a PHY data unit, and individually encodes PSDUs of the one or more PSDUs. The communication device generates a PHY preamble of the PHY data unit, including: generating a first signal field in the PHY preamble, and including in the first signal field an indicator to indicate that the PHY preamble includes a second signal field with HARQ information regarding the PHY data unit, and generating the second signal field to include one or more indications of one or more durations of the one or more respective PSDUs within a PHY data portion of the PHY data unit.

Abstract: A communication device generates a physical layer (PHY) data portion of a PHY data unit, including, for each of a plurality of PHY protocol service data units (PSDUs) to be included in the PHY data unit: selecting a segment boundary within a last-occurring orthogonal frequency division (OFDM) symbol from among a set of multiple segment boundaries, adding pre-forward error correction (pre-FEC) padding bits to the PSDU such that, after encoding the PSDU according to a forward error correction (FEC) code, coded bits of the PSDU end on the selected segment boundary, and individually encoding the PSDU according to the FEC code. The communication device generates a PHY preamble, which includes generating the PHY preamble to include a plurality of indications of a plurality of durations of the respective PSDUs within the PHY data portion.

Abstract: Embodiments of a method and an apparatus for multi-link data transmission are disclosed. In an embodiment, a method for communications involves at a first device, transmitting, to a second device, a trigger frame that solicits at least one Physical layer Protocol Data Unit (PPDU) for uplink transmission, wherein the trigger frame includes a standard-compatible common info field that includes a trigger type field and a standard-compatible user info list field that includes at least one user info field, wherein the trigger frame includes a solicited Trigger-Based (TB) type indicator in a field in the trigger frame other than the trigger type field, and receiving, at the first device, at least one PPDU from the second device in response to the solicited TB type indicator that was transmitted in the trigger frame by the first device.

Abstract: Embodiments described herein provide a method for transmitting a wake-up radio packet to low power devices in a wireless local area network. At a wireless access point having a plurality of antennas, data for transmission to one or more lower power wireless devices are received. A wake-up radio packet, including a wake-up data frame, is configured for transmission to the one or more lower power wireless devices. A waveform for transmitting the wake-up radio packet is generated. At each of the plurality of antennas, the waveform is adjusted with spatial mapping to prevent unintentional spatial nulling of the waveform during transmission of the wake-up radio packet. The wake-up radio packet is transmitted, via the plurality of antennas, in a form of the adjusted waveform to the one or more lower power wireless devices prior to transmitting the received data to the one or more lower power wireless devices.

Abstract: Embodiments described herein provide a method for null data packet transmission. An information symbol is obtained for transmission in a null data packet. A set of tones for transmitting the information symbol is obtained and divided into a first subset of tones and a second subset of tones. A first value is transmitted over the first subset of tones and a second value is transmitted over the second subset of tones to indicate a feedback information bit of zero from the information symbol. A third value is transmitted over the first subset of tones and a fourth value is transmitted over the second subset of tones to indicate a feedback information bit of one from the information symbol.

Abstract: Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.

Abstract: A preamble of a physical layer (PHY) data unit that conforms to a first communication protocol is generated. The preamble includes a legacy field that is formatted according to a second communication protocol, and a signal field having a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol. The first OFDM symbol (i) immediately follows the legacy field and (ii) is modulated using binary phase shift keying (BPSK) modulation, whereas a third communication protocol specifies that an OFDM symbol, defined by the third communication protocol, that immediately follows the legacy field is modulated using BPSK modulation rotated by 90 degrees (Q-BPSK). The second OFDM symbol (i) immediately follows the first OFDM symbol and (ii) is modulated using Q-BPSK to indicate to a receiver device that conforms to the first communication protocol that the data unit conforms to the first communication protocol.

Abstract: A data unit comprising bits to transmit over one or more frequency segments in a frequency range is obtained. An effective bandwidth in each frequency segment of the frequency range is determined, where the effective bandwidth excludes bandwidth of one or more punctured subchannels in a respective frequency segment. Bits are encoded based on the effective bandwidth of each frequency segment followed by parsing the encoded bits to one or more streams and parsing the encoded bits of a stream to the one or more frequency segments. The parsing of the encoded bits of the stream comprises allocating a first number of consecutive encoded bits to a first frequency segment and allocating a second number of consecutive encoded bits to a second frequency segment, wherein the first number and the second number are based on the effective bandwidth of the first frequency segment and the second frequency segment. The encoded bits are modulated and mapped to subcarriers for transmission.

Abstract: Various embodiments relate to a system and method for joint sounding by a client with a master access point (AP) and a slave (AP), including: receiving a message from the master AP; applying network allocation vector (NAV) rules to update a NAV values, wherein the received message is treated as an intra-basic service set (BSS) message when the transmit address (TA) of the received message has a prespecified value; receiving a first trigger frame; and transmitting a first channel state information (CSI) to the master AP when the channel is idle based upon the updated NAV value in response to the trigger frame.

Abstract: A communication device generates a physical layer (PHY) data unit that includes a PHY preamble and one or more PHY midambles. The communication generates the PHY preamble of the PHY data unit to include i) a signal field having a subfield that indicates that the PHY data unit includes one or more PHY midambles, ii) a short training field (STF) for automatic gain control (AGC) training and synchronization at a receiver, and iii) one or more long training fields (LTFs) for determining a channel estimate at the receiver. The communication generates a data payload of the PHY data unit having i) a set of orthogonal frequency division multiplexing (OFDM) symbols, and ii) one or more PHY midambles. Each of the one or more PHY midambles includes one or more LTFs for determining an updated channel estimate. The communication device transmits the PHY data unit via a wireless communication channel.

Abstract: A method for communication in a WLAN includes associating a client station (STA) with a basic service set (BSS) of a first access point (AP), having first antennas, in a wireless local area network (WLAN). A second AP, having second antennas, in the WLAN is synchronized with the first AP. Distributed beamforming parameters are computed over a group of the first antennas and the second antennas. Data for transmission to the STA are distributed to both the first AP and the second AP. The distributed data are distributed to the STA from the first AP via the first antennas in the group and the second AP via the second antennas in the group in synchronization in accordance with the distributed beamforming parameters.

Abstract: A first communication device determines which one or more types of feedback information, from among a plurality of types of feedback information associated with a range measurement exchange session, a second communication device is to provide to the first communication device in a feedback packet transmitted as part of the range measurement exchange session. The first communication device transmits to the second communication device one or more indications of the determined one or more types of feedback information that the second communication device is to provide to the first communication device in the feedback packet. The first communication device performs the range measurement exchange, including receiving the feedback packet from the second communication device, wherein the feedback packet includes the determined one or more types of feedback information.

Abstract: A physical layer (PHY) preamble of a PHY data unit is generated, including generating one or more short orthogonal frequency division multiplexing (OFDM) symbols for one or more long training fields of the PHY preamble. Each of the one or more short OFDM symbols corresponds to a frequency domain sequence having a number of tones. Every N-th tone is modulated and tones between modulated tones are zero tones, where N is a positive integer greater than one. A time duration of each short OFDM symbol is 1/N of a time duration of a full inverse discrete Fourier transform (IDFT) of the frequency domain sequence. A data portion of the PHY data unit is generated, including generating one or more long OFDM symbols. A time duration of each long OFDM symbol is greater than a time duration of each of the one or more short OFDM symbols.

Abstract: A first communication device prompts a plurality of second communication devices to transmit, during a contiguous time period reserved for a range measurement exchange, respective first null data packets (NDPs) at respective times. The first communication device receives first NDPs from at least some of the second communication devices during the contiguous time period, and transmits one or more second NDPs to the plurality of second communication devices. The first communication device uses reception of the first NDPs and transmission of the one or more second NDPs to determine respective ranges between the first communication device and respective second communication devices.

Abstract: Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.

Abstract: Various embodiments relate to a method for processing received distributed multiple-input and multiple-output (DMIMO) OFDM signals from a plurality of transmitters, including: performing an initial carrier frequency offset (CFO) correction; receiving a plurality of OFDM symbols; re-constructing the channel every N symbols based upon a channel estimate for each transmitter and an estimate of residual CFO for each of the transmitters based upon the long term fields (LTF), wherein N is an integer; and equalizing the received OFDM symbols using the re-constructed channel.

Abstract: A boundary within a last orthogonal frequency division multiplexing (OFDM) symbol of a PHY data unit is determined. Pre-encoder padding bits are added to a set of information bits to generate a set of padded information bits such that the set of padded information bits, after being encoded, fill one or more OFDM symbols up to the boundary within the last OFDM symbol. The set of padded information bits are encoded to generate a set of coded bits. A PHY preamble is generated to include a subfield that indicates the boundary. The one or more OFDM symbols are generated to include (i) the set of coded information bits in the one or more OFDM symbols up to the boundary to allow a receiving device to stop decoding the one or more OFDM symbols at the boundary, and (ii) post-encoder padding bits in the last OFDM symbol following the boundary.

Abstract: At a receiver in a short-range wireless system having a plurality of channels and a plurality of receiving antennas, an angle-of-arrival of a signal is determined by receiving, at at least two antennas, the signal on one of the channels, determining a phase difference between the signal as received at those antennas, removing a local oscillator phase from the phase difference to provide an adjusted phase difference, and determining, from the adjusted phase difference, the angle-of-arrival. Removing the local oscillator phase includes estimating a local oscillator phase for each channel to be used for all antennas, or determining an angle using multi-channel combining, and for each channel, using that angle to determine a channel local oscillator phase, or, for a given channel, identifying, as the local oscillator phase, a phase that minimizes the sum, over all antennas, of squares of phase differences between the given channel and a neighboring channel.

Abstract: A first communication device calculates an initial matrix from an estimate of a communication channel, and performs a matrix decomposition of the initial matrix to decompose the initial matrix into a plurality of decomposition matrices. Performing the matrix decomposition comprises determining angles for rotation operations performed on the initial matrix as part of decomposing the initial matrix. The first communication device determines compressed feedback using the angles that were determined as part of decomposing the initial matrix into the plurality of decomposition matrices. The compressed feedback is a compressed representation of a beamforming steering matrix corresponding to the estimate of the communication channel. The first communication device transmits the compressed feedback to a second communication device to enable the second communication device to beamform at least one subsequent transmission to the first communication device.