Abstract: This disclosure provides methods, components, devices and systems for parallel acknowledgments (ACKs) for coordinated beamformed transmissions. Some aspects more specifically relate to a coordination of one or more transmission parameters for the parallel ACKs that are in response to coordinated beamformed physical layer protocol data units (PPDUs). In some examples, a first access point (AP) may communicate one or more frames with a second AP, the one or more frames including information that defines the transmission parameter(s) for the parallel ACKs. The first AP may transmit a first PPDU in accordance with a coordinated beamforming communication scheme between the first AP and the second AP. In response to the first PPDU, the first STA may transmit the first ACK to the first AP in accordance with the transmission parameter(s) defined for the parallel ACKs.

Abstract: This disclosure provides methods, components, devices and systems for field design for 60 GHz physical layer protocol data unit (PPDU) format. Some aspects more specifically relate to PPDU field contents and transmission of the PPDU. In some examples, the PPDU may include a preamble that includes two segments. The first segment of the preamble may include a legacy short training field (L-STF), a legacy long training field (L-LTF), a universal signal (U-SIG) field, and an integrated millimeter wave (IMMW) signal (SIG) field. The second segment of the preamble may include a STF field, one or more LTFs, an IMMW signal B (SIGB) field, a buffer symbol, or any combination thereof. The PPDU format may not include a legacy signal (L-SIG) field. The first segment of the preamble may be transmitted via one or more frequency domain duplicates (FD DUPs) from a base block (such as, a 64 tone base block).

Abstract: This disclosure provides methods, components, devices and systems for a synchronization field design for downlink communication of a physical layer protocol data unit (PPDU). In some examples, a station (STA) may receive a PPDU including a synchronization field and a data field. The synchronization field may include a first portion that is Manchester encoded and a second portion that includes a sequence of on symbols and off symbols that is invalid when using Manchester encoding. In some examples, the STA may identify an end of the synchronization field according to detecting the second portion, and may decode the first portion using a Manchester decoding algorithm. The STA may synchronize parameters based on the synchronization field and decode the data field of the PPDU based on the parameters.

Abstract: This disclosure provides methods, components, devices and systems for interference mitigation (IM) signaling techniques for a physical layer protocol data unit (PPDU). Some aspects more specifically relate to power scaling data tones of a data portion of the PPDU based on pilot tones having a null-toned value during the IM mode. Some other aspects relate to capability signaling for IM, and more specifically relate to signaling a threshold quantity of spatial streams supported by a wireless device for communication of a PPDU in which the IM mode is set to an ON state. Some other aspects more specifically relate to packet extensions (PEs) for PPDUs in which the IM mode is set to the ON state. Some other aspects more specifically relate to interleaving pilot tones with data tones in a data portion of a PPDU in which the IM mode is set to an ON state.

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) designs that support distributed transmission. In some implementations, a PPDU may be generated based on one or more legacy tone plans. In such implementations, a portion of the PPDU may be modulated on a number (M) of tones representing a logical RU, and the M tones may be further mapped to M noncontiguous subcarrier indices in accordance with a distributed tone plan. In some other implementations, a PPDU may be generated based on a distributed tone plan. In such implementations, a portion of the PPDU may be modulated on a number (M) of tones coinciding with M noncontiguous subcarrier indices in accordance with the distributed tone plan.

Abstract: The present invention relates to the technical field of transportation, in particular to a method and apparatus for detecting and tracing vehicle emission anomalies and an electronic device. The method includes: inputting a current operating condition and current operating data into a dynamic threshold model to obtain a first detection result, and inputting the same into an emission prediction model to obtain a second detection result; when the first detection result and the second detection result fail to meet a preset condition for determining vehicle emission anomalies, integrating the first detection result and the second detection result to obtain a final detection result; when the final detection result is higher than or equal to a preset threshold, determining that a vehicle has an emission anomaly; and obtaining a cause and probability of the emission anomaly using a Cosine similarity calculation strategy, based on a vehicle emission anomaly knowledge graph database.

Abstract: This disclosure provides methods, components, devices and systems for frequency hopping for ultra-wideband (UWB) communications. Some aspects more specifically relate to frequency hopping within a given duration (for example, 1 millisecond) for UWB communications to increase communication range and/or throughput while complying with a power spectral density limitation. In some examples, to implement frequency hopping, the transmitting and receiving wireless communication devices may exchange control signaling that indicates or configures a frequency hopping scheme for communication via UWB. For example, the frequency hopping scheme may indicate which frequency ranges (for example, within UWB) will be used for subsequent packets transmitted within a given time duration (for example, a first frequency range for a temporally first packet, a second frequency range for a temporally second packet, etc.) and the relative timing of the transmission of the subsequent packets.

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device, such as a wireless station (STA) or a wireless access point (AP), may perform a low-density parity check (LDPC) coding operation on input bits of a set of code blocks. Performing the LDPC coding operation on the input bits may produce a set of codewords including one or more codewords having a first codeword length and one or more codewords having a second, shorter codeword length. The first wireless device may arrange the set of codewords into a set of symbols such that a last symbol in time of the set of symbols includes the one or more codewords each having the second codeword length and no codewords having the first codeword length. The first wireless device may transmit, to a second wireless device, the plurality of symbols.

Abstract: Provided are a method for introducing point mutations to the coding sequence of NCg12176 gene or improving the expression thereof in Corynebacterium glutamicum, and a method for performing point mutations on the promoter region sequence of dapB gene in Corynebacterium glutamicum. The fermentation yield of L-lysine produced by a strain with the mutations can be increased by means of the methods.

Abstract: In some implementations, a method may comprise determining capabilities of UWB initiator and responder devices related to at least one UWB session. The method may also comprise determining a gap duration based at least in part on the capabilities of the UWB initiator and responder devices for performing RF retuning during the at least one UWB session. The method may also comprise sending a configuration to the UWB initiator and/or responder devices, wherein the configuration is indicative of: a first period of time in the at least one UWB session during which a first portion of the UWB RF signals is transmitted using a first carrier frequency, a gap of at least the determined gap duration following the first period of time, and a second period of time, following the gap, during which a second portion of the UWB RF signals is transmitted using a second carrier frequency.

Abstract: This disclosure provides methods, components, devices and systems for 60 gigahertz (GHz) null data packet (NDP) sounding. Some aspects more specifically relate to using an NDP frame for 60 GHz channel sounding to perform analog beam training and digital beamforming channel sounding. An initiator device, such as a wireless access point (AP), may transmit a first set of NDP frames for a channel sounding procedure via a 60 GHz wireless channel. A responder device may measure the first set of NDP frames and transmit a second set of NDP frames via the 60 GHz wireless channel. The sounding procedure may include a 1-dimensional (1D) or two-dimensional (2D) beam search procedure. In some examples, the sounding procedure may be assisted by a sub-7 GHz communication link.

Abstract: This disclosure provides methods, components, devices and systems that relate to a synchronization field design for downlink communication and uplink communication of the PPDU. In some examples, the STA may obtain a PPDU comprising at least a synchronization field and a data field. The synchronization field may include a sequence of on symbols and off symbols, and the sequence may include three consecutive on symbols or three consecutive off symbols. In some examples, the sequence does not include four or more consecutive off symbols or four or more consecutive on symbols. The STA may synchronize parameters based on the synchronization field and decode the data field of the PPDU based on the parameters.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical layer (PHY) packet design for power spectral density (PSD) limits. In some implementations, a wireless communication device generates a plurality of PHY convergence protocol (PLCP) protocol data unit (PPDU) duplicates configured for transmission over a selected bandwidth, and transmits each PPDU duplicate of the plurality of PPDU duplicates on a corresponding frequency subband of a plurality of different frequency subbands. In some other implementations, the wireless communication device generates a PPDU for transmission over a set of duplicated resource units (RUs) allocated to the wireless communication device, and transmits the PPDU over the allocated set of duplicated RUs.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

Abstract: This disclosure provides methods, components, devices and systems for physical layer protocol data unit (PPDU) formats for 60 GHz communications. Some aspects more specifically relate to PPDU designs that include a preamble portion that can carry information for decoding of information in a payload portion of a data PPDU in 60 GHz communications. The preamble portion may include a short training field, a long training field, and at least one signal field that includes one or more 60 GHz parameters related to decoding of the data portion. The PPDU may have a frame structure that is upclocked from a PPDU frame structure associated with communications on one or more lower frequency bands. In some aspects, the preamble portion includes at least one signal field includes an integrated millimeter wave (IMMW) signal field that is associated with 60 GHz communications that is jointly encoded with one or more parameters.

Abstract: This disclosure provides methods, components, devices and systems for physical layer protocol data unit (PPDU) formats for 60 GHz communications. Some aspects more specifically relate to PPDU designs that include a preamble portion that can carry information for decoding of information in a payload portion of a data PPDU in 60 GHz communications. The preamble portion may include a short training field, a long training field, and at least one signal field that includes one or more 60 GHz parameters related to decoding of the data portion. The PPDU may have a frame structure that is upclocked from a PPDU frame structure associated with communications on one or more lower frequency bands. In some aspects, the preamble portion includes at least one signal field includes an integrated millimeter wave (IMMW) signal field that is associated with 60 GHz communications that is jointly encoded with one or more parameters.

Abstract: This disclosure provides methods, components, devices and systems for managing characteristics of transmissions in wireless communication networks. Some aspects more specifically relate to the use of channel quality feedback to provide transmitting devices in such networks with guidance regarding suitable transmission parameters for their transmissions. According to some aspects, a wireless communication device can provide a second wireless communication device with channel feedback information indicating a modulation and coding scheme (MCS) and number of spatial streams for prospective transmissions of the second device. According to some aspects, the wireless communication device can select the MCS and NSS based on an effective signal-to-interference-plus-noise (SINR) associated with receipt of a packet from the second device.

Abstract: This disclosure provides methods, components, devices and systems for ambient power downlink bandwidth control. Some aspects more specifically relate to waveform generation and sequence selection for transmission of wireless signaling. In some examples, an access point (AP) may generate a spreading waveform by concatenating a sequence of symbols having a first duration and modulating an on-off keying (OOK) waveform having a different symbol duration with the spreading waveform. The AP may apply randomization to each OFDM and may select a sequence of tones in the frequency domain to reduce inconsistent power transmissions across slices of each OFDM symbol. The AP may select which tones to populate and which values to apply to the selected tones such that an amount of variation in transmit power across slices of each OFDM symbol of the waveform is decreased.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical layer (PHY) packet design for power spectral density (PSD) limits. In some implementations, a wireless communication device generates a plurality of PHY convergence protocol (PLCP) protocol data unit (PPDU) duplicates configured for transmission over a selected bandwidth, and transmits each PPDU duplicate of the plurality of PPDU duplicates on a corresponding frequency subband of a plurality of different frequency subbands. In some other implementations, the wireless communication device generates a PPDU for transmission over a set of duplicated resource units (RUs) allocated to the wireless communication device, and transmits the PPDU over the allocated set of duplicated RUs.