Abstract: A communication device determines that a communication channel to be used for a multi-user (MU) transmission spans a frequency bandwidth greater than 160 MHz. The communication device allocates one or more frequency resource units (RUs) for the MU transmission, including: in response to determining that the communication channel spans the frequency bandwidth greater than 160 MHz, selecting one or more frequency RUs from a second set of frequency RUs. The second set of frequency RUs omits at least some RUs of a smallest bandwidth that are included in a first set of RUs that is used for allocating frequency RUs for communication channels having bandwidths of at most 160 MHz. The communication device generates allocation information that indicates the allocation of the one or more frequency RUs for the MU transmission, and transmits the allocation information to one or more other communication devices in connection with the MU transmission.

Abstract: A method and an apparatus for operating a Basic Service Set (BSS) are disclosed. A method involves announcing, by a first wireless device to a second wireless device, a BSS operating channel, wherein the first wireless device has at least one of a first transmission power capability and a first bandwidth capability, the second wireless device has at least one of a second transmission power capability that is less than the first transmission power capability and a second bandwidth capability that is narrower than the first bandwidth capability, and wherein the BSS operating channel is at least one of a punctured operating channel and an unpunctured operating channel, associating, by the second wireless device, with the first wireless device via the announcement of the BSS operating channel from the first wireless device, and exchanging frames between the first wireless device and the second wireless device in the BSS operating channel.

Abstract: A first communication device receives a null data packet (NDP) transmitted by a second communication device as part of a multi-user beamforming training transmission sequence. The NDP includes a set of one or more training signals that allow the first communication device to estimate a communication channel from the second communication device to the first communication device. The first communication device generates, based on the set of one or more training signals included in the NDP received from the second communication device, an aggregate media access control protocol data unit (A-MPDU) to include a plurality of fragments of beamforming training information for the second communication device. No single fragment among the plurality of fragments includes an entirety of the beamforming training information. The first communication device transmits the A-MPDU to the second communication device in a single physical layer (PHY) data unit and as part of a multi-user transmission.

Abstract: A first communication device transmits a plurality of training signals to a second communication device via a communication channel The first communication device receives feedback generated at the second communication device based on the plurality of training signals. The feedback includes steering matrix information for a plurality of orthogonal frequency division multiplexing (OFDM) tones and (ii) additional phase information corresponding to channel estimates obtained for the plurality of OFDM tone. The first communication device constructs, based on the steering matrix information, a plurality of steering matrices corresponding to the plurality of OFDM tones, and compensates, using the additional phase information, the plurality of steering matrices to reduce phase discontinuities between the OFDM tones. The first communication device steers, using the compensated steering matrices, at least one transmission via the communication channel to the second communication device.

Abstract: A first aggregated MAC protocol data unit (A-MPDU) is generated for transmission over a first frequency segment of a communication channel, and a second A-MPDU is generated for transmission over a second frequency segment of the communication channel. A PHY protocol data unit (PPDU) is generated to include the plurality of A-MPDUs and a second PPDU is generated to include the second A-MPDU. A first transmit processor generates a first RF signal for transmission of the first PPDU over the first frequency segment and a second transmit processor generates a second RF signal for transmission of the second PPDU over the second frequency segment. The first RF signal is transmitted in the first frequency segment simultaneously with the second RF signal being transmitted in the second frequency segment.

Abstract: In an IEEE 802.11bc wireless system, aggregated data frames are communicated between first and second STA devices by configuring the first STA device to assemble and transmit an A-MPDU frame having multiple A-MPDU subframes characterized by a fixed MPDU start spacing parameter and a fixed maximal MPDU length parameter, where the first STA device is configured with the fixed MPDU start spacing parameter and the fixed maximal MPDU length parameter without negotiating association request and response messages, and by configuring the second STA device to assemble and transmit a BA message comprising a BA bitmap identifying the one or more of the multiple A-MPDU subframes which are not successfully received by the second STA device, where the BA bitmap has a size characterized by a fixed buffer size parameter which is configured at the second STA device without negotiating add BA request (ADDBA Request) request and response messages.

Abstract: A first communication device encodes, according to a non-rate-matching coding scheme, a set information bits to generate a set of coded bits, generates a first physical layer (PHY) data unit to include at least some of the coded bits, and transmits the first PHY data unit in an initial hybrid automatic repeat request (HARQ) transmission to a second communication device. Subsequently, in response to determining that the second communication device was not able to properly decode the set of coded bits based on the initial HARQ transmission, the first communication device selects a subset of the set of coded bits, the subset including some, but not all, coded bits that were included in the initial HARQ transmission, generates a second PHY data unit to include the subset of coded bits, and transmits the second PHY data unit in a HARQ retransmission to the second communication device.

Abstract: One example discloses an IEEE 802.11 compliant wireless communications device, including: a processor configured to generate a hybrid-physical protocol data unit (hybrid-PPDU) that includes a set of sub-PPDUs; a first sub-PPDU in the set of sub-PPDUs includes a first preamble portion and a first data payload portion; a second sub-PPDU in the set of sub-PPDUs includes a second preamble portion and a second data payload portion; wherein an OFDMA communications signal includes a set of symbol tones divided into a set of resource units (RUs); wherein the processor is configured to map the first sub-PPDU to a first RU within the set of RUs, and map the second sub-PPDU to a second RU within the set of RUs; and wherein the first preamble portion corresponds to a first 802.11 packet format, and the second preamble portion corresponds to a second 802.11 packet format.

Abstract: A millimeter-wave communication system includes a transmitter and a receiver. The transmitter is configured to be connected to a waveguide that is transmissive at millimeter-wave frequencies, the waveguide having a propagation parameter that varies with frequency at the millimeter-wave frequencies. The transmitter is configured to generate a millimeter-wave signal comprising multiple sub-carriers that are modulated with data, wherein each sub-carrier is modulated with a respective portion of the data and is subjected to only a respective fraction of a variation in the propagation parameter, and to transmit the millimeter-wave signal into a first end of the waveguide. The receiver is configured to receive the millimeter-wave signal from a second end of the waveguide, and to extract the data from the multiple sub-carriers.

Abstract: A wireless communication device generates physical layer (PHY) protocol service data units (PSDUs), and, in response to determining that the PHY data unit is to be transmitted according to a HARQ process, generates HARQ coding units of a common length, each of the HARQ coding units including a respective set of one or more PSDUs, and individually encodes the HARQ coding units. The wireless communication device also generates a HARQ signal field to the included in a PHY preamble of the PHY data unit. The HARQ signal field includes i) a common information subfield to indicate one or more parameters that commonly apply to each of at least some of the one or more HARQ coding units and ii) a respective HARQ coding unit information subfield for each of the HARQ coding units to indicate one or more parameters that apply to only the corresponding HARQ coding unit.

Abstract: An optimal detection voltage obtaining method, a reading control method and an apparatus are provided.

Abstract: The present invention discloses a method for measuring an actual temperature of a flame by using all information of a radiation spectrum and a measurement system thereof. The method includes: conducting more theoretical data processing by using energy level structure correction, wherein all information of the radiation spectrum can be used; and by way of a keyboard input manner or a data transmission input manner, acquiring an energy level structure correction parameter, and finally acquiring a more accurate actual temperature value of a measured flame. The method effectively overcomes a defect that the true temperature of the flame can be obtained by only conducting radiance correction through data processing with great calculations when adpted multi-spectral temperature measurement method.

Abstract: A multi-purpose insulating beverage container includes an outer container with an open upper end, a removable inner container configured for insertion into the outer container via the open upper end, and a cover adapted to engage the outer container and retain the inner container within the outer container. The inner container includes a plurality of annular side ledges with decreasing diameters sized to support beverage bottles or cans of different sizes.

Abstract: Examples of wireless communication based on link use capabilities of multi-link devices is disclosed. A first multi-link device receives a first physical layer conformance procedure (PLCP) protocol data unit (PPDU) on a first link from a second multi-link device and transmits a second PPDU on the second link based on a link use capability of the second multi-link device and a backoff counter counting down to a predetermined value. A first multi-link device also transmits a PPDU on the first link and the second link at a same start time based on an link idle determination and the backoff counter counting down to a predetermined value.

Abstract: A first data unit is transmitted which indicates to a remote device to transmit a second data unit. The first data unit comprises an indication to transmit a second data unit. The first data unit comprises a value which indicates that the remote device is to transmit the second data unit and does not indicate a protocol which defines a format of the second data unit. The protocol which defines the format of the second data unit is based on a protocol which defines a format of the first data unit. The second data unit is received from the remote device in response to the transmission of the first data unit.

Abstract: A system includes a modulator, a repetition module, and a phase rotation module. The modulator is configured to (i) modulate data using a first modulation scheme and dual sub-carrier modulation, and (ii) generate modulated symbols for transmission on a plurality of subcarriers. The dual sub-carrier modulation modulates the same information on a pair of subcarriers. The repetition module is configured to repeat the modulated symbols from a first half of the plurality of subcarriers to a second half of the plurality of subcarriers. The phase rotation module is configured to rotate phase of the modulated symbols on selected subcarriers of the second half of the plurality of subcarriers. The selected subcarriers of the second half of the plurality of subcarriers include at least one half of the second half of the plurality of subcarriers.

Abstract: A method for Wireless Local-Area Network (WLAN) communication in a WLAN device includes receiving from a remote WLAN device an announcement of a maximal Hybrid Automatic Repeat Request (HARQ) buffering capability of a receiver of the remote WLAN device. A HARQ Physical-layer Protocol Data Unit (HARQ PPDU), which includes one or more HARQ coding units, is constructed in the WLAN device in response to the announcement. The HARQ PPDU is transmitted from the WLAN device to the remote WLAN device. One or more of the HARQ coding units are retransmitted in response to a request from the remote WLAN device.

Abstract: Embodiments of a device and a method for multi-link operations are disclosed. In an embodiment, a device includes a processor configured to perform a first backoff operation on a first link and a second backoff operation on a second link of a multi-link device (MLD) that has a non-simultaneous transmission and reception capability (NSTR MLD), and transmit a first Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU) on the first link at a first start time after the first backoff operation and a second PPDU on the second link at a second start time after the second backoff operation.

Abstract: The utility model discloses a multipurpose portable vacuum insulation ice bucket, which is technically characterized in that the multipurpose portable vacuum insulation ice bucket comprises a soft rubber lid, an inner lid is connected to a lower part of the soft rubber lid through rubber coating, and an outer lid is placed above the inner lid; and the inner lid is connected with an inner container through a thread, the inner container is welded with an outer container and an outer container bottom and vacuumized, a bottom of the inner container is provided with an inner container bottom, and inner container steps are arranged inside the inner container. The multipurpose portable vacuum insulation ice bucket has multiple functions because of the steps arranged inside, has the advantages of simple structure, easy use and high portability, and may adapt to chilled beverages of different sizes as needed, which effectively improves the use experience of consumers and reduces the use cost.

Abstract: Various embodiments relate to a method of sounding a plurality of stations (STAs) with mixed operating bandwidths using a null data packet (NDP), wherein the bandwidth of the NDP is wider than the bandwidth of one STA, including: grouping STAs of mixed operating bandwidth in one sounding sequence by a beamformer; transmitting a null data packet announcement (NDPA) to the STAs, wherein the NDPA indicates the requested partial bandwidth channel feedback for each STA by the beamformer; transmitting the wide-bandwidth NDP to the STAs by the beamformer; transmitting beamforming report poll (BFRP) frame to the STAs to trigger uplink transmission of channel feedback reports by the beamformer; and receiving by the beamformer a partial bandwidth channel feedback within the STA's operating bandwidth from the STAs; receiving and parsing channel feedback reports from the STAs used for following steered OFDMA transmissions by the beamformer.