Abstract: This disclosure provides methods, components, devices and systems for low-latency parameter updates. In some aspects, a wireless communication device, such as a handset or an access point (AP), may transmit, to one or more wireless audio devices, an indication of a set of updated parameters associated with an extended personal area network (XPAN) of the wireless communication device. The wireless communication device may embed the indication of the set of updated parameters via a real-time protocol (RTP) header or in a padding section of a payload data of an audio data packet. A wireless audio device may extract the set of updated parameters from the audio data packet and may transmit an acknowledgement (ACK) to the wireless communication device. As a result of receiving an ACK from the wireless audio device(s), the wireless communication device may communicate with the wireless audio device(s) in accordance with the updated parameters.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may communicate, during a first communication period, with an audio device via a wireless link configured with a first service interval and a first service period. The WCD may communicate, during a second communication period, with the audio device via the wireless link configured with a second service interval and a second service period based at least in part on detection of a trigger condition comprising one or more of: a change of a signal strength, a change of one or more concurrent wireless links on one or more frequency bands that overlap with the wireless link, a change of a use state of the WCD, or a change in channel congestion or interference. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may communicate, during a time period, with a peripheral device via a wireless connection, the wireless connection using a first channel for communication. The WCD may monitor a second channel during a concurrency time of the wireless connection, the second channel using a channel availability check (CAC) to obtain resources for communicating, and transmitting an indication to switch to the second channel for communication. In some aspects, the WCD may communicate with low-latency requirements. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may communicate, via a wireless link, with an audio device using a first configuration having first values for communication parameters. The WCD may transmit an indication to switch to a second configuration based at least in part on a configuration switch trigger, the configuration switch trigger being based at least in part on one or more of a link quality metric associated with the wireless link or a change of a use state of the WCD, and the second configuration having second values for the communication parameters associated with a reduction in voltage-induced interference in an audio output of the audio device. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications for opportunistic sounding for low latency applications are described. An access point (AP) may communicate with one or more stations (STAs), and may communicate a control message indicating more than one periodic service periods for wireless communication with the one or more STAs. The AP may transmit, via a transmit beam, a data message during a first service period of the more than one periodic service periods based on a first compressed beamforming estimate (CBF) for the transmit beam being satisfactory for the first service period and transmit one or more sounding signals during the first service period after transmitting the data message based on the first CBF being suboptimal for a second service period that occurs after the first service period. The STA(s) may transmit, and the AP may receive, an indication of a second CBF based on the one or more sounding signals.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an access point may start a target wake time (TWT) service period (SP). The access point may receive an end of SP (EOSP) indication from a station. The access point may stop the TWT SP before a scheduled end of the TWT SP based on receiving the EOSP indication. Numerous other aspects are described.

Abstract: Systems and methods for selectively enabling multi-user (MU) communications are disclosed. In some implementations, an access point (AP) obtains packets associated with a traffic flow, and obtains at least one of service-level agreement (SLA) parameters associated with the traffic flow, attributes of the traffic flow, or network parameters associated with a basic service set (BSS) that includes the AP. The AP provides an indication of whether the traffic flow is suitable for transmission as a single-user (SU) multiple-input multiple output (MIMO) (SU-MIMO) communication, as an MU-MIMO communication, as an orthogonal frequency division multiple access (OFDMA) communication, or as a partial bandwidth (BW) MU-MIMO communication to a WLAN subsystem of the AP, the indication being based on one or more of the SLA parameters, the traffic flow attributes, or the network parameters. The AP initiates transmission of the one or more packets based on the indication.

Abstract: An AP obtains service-level agreement (SLA) parameters indicating at least a delay bound for each of a plurality of traffic flows. The AP receives first packets of a first traffic flow, and delays their transmission for a delay period based on the data carried in the first packets being less than a first threshold. During the delay period, the AP receives second packets of the first traffic flow while also receiving packets of a second traffic flow, groups the second traffic flow with the first traffic flow for an MU-MIMO transmission based on the data carried in the first and second packets of the first traffic flow being greater than the first threshold and the data carried in the packets of the second traffic flow being greater than a second threshold, and transmits the first and second packets traffic flows as an MU-MIMO communication.

Abstract: This disclosure provides methods, devices and systems for provisioning resources for wireless communications. Some implementations more specifically relate to provisioning such resources based on a mapping of wireless communication devices to a number of time sectors that occur periodically and do not overlap other time sectors. In some aspects, each wireless stations (STAs) in a basic service set (BSS) may be mapped to a respective time sector based on attributes associated with the BSS so that communications between a STA and its associated access point (AP) can only occur within the respective time sector(s) to which the STA is mapped. In some other aspects, each AP in a multi-AP environment may be mapped to a respective time sector based on attributes associated with the multi-AP environment so that communications between an AP and its associated STAs can only occur within the respective time sector(s) to which the AP is mapped.

Abstract: This disclosure provides methods, apparatuses, wireless nodes and computer-readable mediums for wireless communications. In one aspect, a method is provide for dynamic selection and triggering of uplink (UL) transmission (TX) modes. A method that may be performed by an access point (AP) includes dynamically selecting an UL single user (SU) TX mode, an UL multiple user (MU) multiple input multiple output (MIMO) TX mode, or an UL orthogonal frequency division multiple access (OFDMA) TX mode. The AP communicates with one or more stations (STAs) based on the dynamically selected UL TX mode.

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for including signaling regarding enhanced features of new wireless communication protocols. The signaling may be included in various portions of a physical layer preamble of a wireless transmission. In some implementations, the physical layer preamble may be used to indicate puncturing of subbands or content channels that may carry further signaling in accordance with preamble signaling designs of this disclosure. The physical layer preamble signaling be parallelized for different subchannels of a wireless channel that consists of multiple subchannels. Some implementations of the physical layer preambles may be used to multiplex different types of wireless local area network communications into different subsets of the plurality of subchannels of the wireless channel.

Abstract: This disclosure provides systems, methods and apparatuses for channel selection and channel selection planning in a network including a root AP (RAP) and a number of satellite APs (SAPs). The root AP may assign operating channels for one or more of the satellite APs in a manner that optimizes network performance by considering the impact that each of the satellite APs (as well as their respective client devices) may have on the network. In some implementations, the root AP may provide centralized channel selection planning for the network based a number of network parameters observed by one or more of the satellite APs. The network parameters may include, for example, channel conditions, traffic loads, traffic patterns, service needs of client devices, available channels, and other network utilization information observed by one or more of the satellite APs.

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for wireless communication. In one aspect, an access point for wireless communications may include a transceiver; a memory; and a processor communicatively coupled to the transceiver and the memory, the processor being configured to: determine an interference level on a selected bandwidth; selectively transmit, via the transceiver, a clear-to-send (CTS)-to-self frame based on the determined interference level; and initiate a sounding sequence based on the transmitted CTS-to-self frame.

Abstract: Uplink multi-user multiple-in, multiple-out (UL MU-MIMO) transmissions involve coordinating or scheduling stations communications with an access point. Methods and systems for scheduling UL MU-MIMO transmissions provide selection of stations permitted to communicate during the UL MU-MIMO transmission. One such method includes transmitting a first trigger message that requests each station to transmit a second message to the access point. The method also includes receiving the second messages from responding stations and estimating, based on the second messages, one or more parameters for each responding station. The method further includes generating a schedule for the stations to transmit data to the access point and transmitting a second trigger message to the stations, the second trigger message identifying the schedule and the stations that are scheduled to transmit UL data to the access point according to the schedule.

Abstract: This disclosure provides systems, methods and apparatus for wireless communication. In one aspect, a method of wireless communication includes utilizing a sounding procedure to obtain compressed beamforming (CBF) information. The sounding procedure may be a single-user or multi-user sounding procedure. The CBF information may contain various information regarding a particular channel that an access point may use for transmission. The information may include per-tone SNR information which may be processed to determine characteristics of the channel. Various techniques may be utilized to determine the further characteristics of the channel. The determined characteristics of the channel may then be used to determine an appropriate guard interval (GI) between symbols that are to be transmitted. Appropriate GI selection in wireless communications may facilitate higher throughput while decreasing overhead due to unnecessary idle time.

Abstract: This disclosure provides systems, methods and apparatus for wireless communication. In one aspect, a method of wireless communication includes utilizing a sounding procedure to obtain compressed beamforming (CBF) information. The sounding procedure may be a single-user or multi-user sounding procedure. The CBF information may contain various information regarding a particular channel that an access point may use for transmission. The information may include per-tone SNR information which may be processed to determine characteristics of the channel. Various techniques may be utilized to determine the further characteristics of the channel. The determined characteristics of the channel may then be used to determine an appropriate guard interval (GI) between symbols that are to be transmitted. Appropriate GI selection in wireless communications may facilitate higher throughput while decreasing overhead due to unnecessary idle time.

Abstract: Certain aspects of the present disclosure relate to determining a signaling field modulation and coding scheme (MCS) value for communicating information in a signaling field of a frame to a plurality of user devices. Certain aspects of the present disclosure provide a method for wireless communications by an access point (AP). The method includes determining a signaling field modulation and coding scheme (MCS) value for communicating information in a signaling field of a frame to a plurality of user devices based on one or more data MCS values for communicating payload data of the frame to the plurality of user devices. The method further includes transmitting the frame to the plurality of user devices using the determined signaling field MCS value for the signaling field.

Abstract: The present disclosure provides techniques for grouping in multi-user multiple-input-multiple-output (MU-MIMO) systems by using limited probing. With more wireless stations (STAs) being used in MU-MIMO groups, the probing used to obtain packet error metrics to determine the throughput for selecting the MU-MIMO groups for transmission can become more complex and involve a larger overhead. To reduce the probing overhead, various techniques are described in this disclosure. For example, an access point (AP) can identify a trigger to initiate a packet error probing. In response to the trigger, the AP embeds one or more probing packets that are part of the packet error probing within a short interframe space (SIFS)-burst data transmission process to take advantage of the existing structure of the process. Then, the AP can update at least one packet error metric (e.g., packet error rate or PER) based on feedback received in response to the probing packets.

Abstract: The present disclosure provides techniques for rate adaptation in multi-user multiple-input-multiple-output (MU-MIMO) systems for wireless local area networks (WLANs). When rate adaptation is based solely on packet error rate (PER) from feedback provided by wireless stations (STAs), the rate selection may not be optimal. In some scenarios, rate adaptation from the combined use of PER and MU signal-to-interference-plus-noise ratio (MU-SINR) can allow for better selection of the rate components, such as modulation coding scheme (MCS) and number of spatial streams (Nss). Accordingly, the present disclosure provides techniques in which a condition associated with transmitting an MU PLCP Protocol Data Unit (MU-PPDU) for multiple STAs is identified, packet error (e.g., PER) and signal strength (e.g., MU-SINR) metrics are determined for each STA in response to such condition, a rate for each STA is determined based on the respective metrics, and the MU-PPDU is transmitted according to the determined rates.

Abstract: The disclosure provides techniques for sounding sequence protection in multi-user multiple-input-multiple-output (MU-MIMO) communications for wireless local area networks (WLANs). An access point (AP) may select a station (STA) from multiple STAs in a MU-MIMO group. The AP may then transmit a request-to-send (RTS) frame, where the RTS is addressed to the selected STA. The AP may receive a clear-to-send (CTS) frame from the selected station and may perform, in response to receiving the CTS frame, a sounding sequence with the MU-MIMO group. After completion of the sounding sequence, the AP may transmit MU-MIMO data communications to at least one of the STAs in the MU-MIMO group.