Abstract: This disclosure provides systems, methods and apparatuses for selectively using spatial reuse (SR) transmissions in the presence of an overlapping basic service set (OBSS) transmission. In some implementations, a wireless communication device may transmit data to another wireless communication device using SR packets in the presence of an OBSS transmission or interference only when the signal strength of SR packets received at the other wireless communication device is greater than an amount of signal degradation of the OBSS transmission caused by the SR transmission.

Abstract: This disclosure provides methods, devices and systems for communicating over a 60 GHz band and reusing legacy hardware for communication over sub-6 bands. Certain aspects are directed to outputting, for transmission to a second wireless device, a first packet, wherein the first packet is output via a radio frequency (RF) front end defined by a first clock accuracy requirement having an acceptable error rate that is lower than a legacy clock accuracy requirement, and wherein the first packet is output for transmission via a first band. Certain aspects are directed to obtaining, from the second wireless device, a second packet via the first band.

Abstract: Adaptive beam management techniques for millimeter wave wireless communication are disclosed. A wireless device performs a sector level sweep (SLS) to identify multiple transmit beams. The device obtains an indication of N best transmit beams and performs a beam refinement phase (BRP) for each, establishing a list of transmit-receive beam pairs. During operation, if a primary beam is blocked, the device can switch to an alternative beam from the list, indicating the change in request-to-send (RTS) frames. The system supports intelligent beam switching based on signal quality data, device location, quality of service requirements, and historical information. These techniques enable rapid adaptation to changing channel conditions, reducing link outages and improving overall system performance in dynamic environments.

Abstract: This disclosure provides methods, devices and systems for clear channel assessment (CCA) for wireless communications in wireless local area networks (WLANs). In some aspects, an access point (AP) may detect an interfering transmission associated with an overlapping basic service set (OBSS). The AP may further transmit, to at least one station (STA), a probe frame soliciting information indicating an interference environment observed by the at least one STA when an interfering transmission fails to satisfy an interference criterion associated with the AP. The AP may further transmit the probe frame to the at least one STA after a backoff period when the interfering transmission satisfies the interference criterion associated with the AP.

Abstract: This disclosure provides systems, methods and apparatuses for selectively using spatial reuse (SR) transmissions in the presence of an overlapping basic service set (OBSS) transmission. In some implementations, a wireless communication device may transmit data to another wireless communication device using SR packets in the presence of an OBSS transmission or interference only when the signal strength of SR packets received at the other wireless communication device is greater than an amount of signal degradation of the OBSS transmission caused by the SR transmission.

Abstract: This disclosure provides methods, components, devices and systems for multi-stream fast link adaptation (FLA) feedback. Some aspects more specifically relate to mapping a proposed quantity of spatial streams to columns of a channel matrix. According to the mapping, a channel matrix may be of a nested structure, such that a proposed quantity of spatial streams may correspond to a sequentially first and contiguous quantity of columns of the channel matrix. For example, a device may utilize a first N columns of the channel matrix to generate N spatial streams for future communications. The device may request that another device determine the proposed quantity of spatial streams and one or more corresponding FLA parameter values by transmitting an FLA request that indicates a first quantity of spatial streams and a quantity of extra spatial streams available for use.

Abstract: This disclosure provides methods, devices and systems for communicating over a 60 GHz band and reusing legacy hardware for communication over sub-6 bands. Certain aspects are directed to outputting, for transmission to a second wireless device, a first packet, wherein the first packet is output via a radio frequency (RF) front end defined by a first clock accuracy requirement having an acceptable error rate that is lower than a legacy clock accuracy requirement, and wherein the first packet is output for transmission via a first band. Certain aspects are directed to obtaining, from the second wireless device, a second packet via the first band.

Abstract: This disclosure provides methods, components, devices and systems for communications for fast link adaptation (FLA). In some examples, a transmitter may transmit an FLA information request via a physical layer (PHY) protocol data unit (PPDU). The PPDU may include an FLA information request indicating that the receiver is to report one or more parameter values (such as proposed updates to current parameter values) for a currently used quantity of spatial streams. In some examples, the PPDU may include (such as in a media access control (MAC) header) a bit which can be turned on to request a second FLA element indicating one or more parameters for a proposed (such as, updated) quantity of spatial streams.

Abstract: This disclosure provides methods, components, devices and systems for interference reduction between wireless communication devices of overlapping basic service sets (OBSSs). Some aspects more specifically relate to signaling mechanisms associated with an OBSS channel sounding operation and power control mechanisms associated with OBSS interference mitigation, either or both of which a first access point (AP) associated with a first basic service set (BSS) may leverage as part of a coordinated beamforming scheme with a second AP associated with a second BSS. In accordance with OBSS channel sounding, the first AP may associate a set of sounding packets with one or more parameters indicative of the second BSS such that the sounding packets appear, to OBSS stations (STAs), as in-BSS sounding packets. Additionally, or alternatively, the first AP may employ a power control mechanism according to which the first AP may apply portion-by-portion transmission power control.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for passive beamforming for Wi-Fi. A first wireless device communicating in an active session via a first bandwidth with a second wireless device may use a passive beamforming technique to identify a transmission sector of the second wireless device and/or a receive sector for communications on a second bandwidth, while the first wireless device is in an inactive session state for the second bandwidth. The second wireless device may transmit beacons in the second bandwidth via directional transmission sectors while the first wireless device is in the inactive session state for the second bandwidth. The first wireless device may receive the beacons and may select a transmission sector based on the beacons. The first wireless device may indicate the selected transmission sector to the second wireless device. The first wireless device may select a receive sector based on the beacons.

Abstract: Certain aspects of the present disclosure provide techniques for handling coordinated beamforming in wireless communications systems. An example method performed by a first access point (AP) generally includes outputting, for transmission to a second AP, at least one of a first indication that the first AP supports spatial reuse of transmission resources or a second indication that the first AP supports asymmetric coordinated beamforming (CBF); and outputting, for transmission, signaling to one or more stations (STAs) supported by the first AP without intent to form nulls directed toward other STAs supported by the second AP.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for passive beamforming for Wi-Fi. A first wireless device communicating in an active session via a first bandwidth with a second wireless device may use a passive beamforming technique to identify a transmission sector of the second wireless device and/or a receive sector for communications on a second bandwidth, while the first wireless device is in an inactive session state for the second bandwidth. The second wireless device may transmit beacons in the second bandwidth via directional transmission sectors while the first wireless device is in the inactive session state for the second bandwidth. The first wireless device may receive the beacons and may select a transmission sector based on the beacons. The first wireless device may indicate the selected transmission sector to the second wireless device. The first wireless device may select a receive sector based on the beacons.

Abstract: This disclosure provides methods, devices and systems for clear channel assessment (CCA) for wireless communications in wireless local area networks (WLANs). In some aspects, an access point (AP) may detect an interfering transmission associated with an overlapping basic service set (OBSS). The AP may further transmit, to at least one station (STA), a probe frame soliciting information indicating an interference environment observed by the at least one STA when an interfering transmission fails to satisfy an interference criterion associated with the AP. The AP may further transmit the probe frame to the at least one STA after a backoff period when the interfering transmission satisfies the interference criterion associated with the AP.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for passive beamforming for Wi-Fi. A first wireless device communicating in an active session via a first bandwidth with a second wireless device may use a passive beamforming technique to identify a transmission sector of the second wireless device and/or a receive sector for communications on a second bandwidth, while the first wireless device is in an inactive session state for the second bandwidth. The second wireless device may transmit beacons in the second bandwidth via directional transmission sectors while the first wireless device is in the inactive session state for the second bandwidth. The first wireless device may receive the beacons and may select a transmission sector based on the beacons. The first wireless device may indicate the selected transmission sector to the second wireless device. The first wireless device may select a receive sector based on the beacons.

Abstract: Certain aspects of the present disclosure provide techniques for handling coordinated beamforming in wireless communications systems. An example method performed by a first access point (AP) generally includes outputting, for transmission to a second AP, at least one of a first indication that the first AP supports spatial reuse of transmission resources or a second indication that the first AP supports asymmetric coordinated beamforming (CBF); and outputting, for transmission, signaling to one or more stations (STAs) supported by the first AP without intent to form nulls directed toward other STAs supported by the second AP.

Abstract: This disclosure provides methods, devices and systems for communicating over a 60 GHz band and reusing legacy hardware for communication over sub-6 bands. Certain aspects are directed to outputting, for transmission to a second wireless device, a first packet, wherein the first packet is output via a radio frequency (RF) front end defined by a first clock accuracy requirement having an acceptable error rate that is lower than a legacy clock accuracy requirement, and wherein the first packet is output for transmission via a first band. Certain aspects are directed to obtaining, from the second wireless device, a second packet via the first band.

Abstract: This disclosure provides systems, methods and apparatuses for selectively using spatial reuse (SR) transmissions in the presence of an overlapping basic service set (OBSS) transmission. In some implementations, a wireless communication device may transmit data to another wireless communication device using SR packets in the presence of an OBSS transmission or interference only when the signal strength of SR packets received at the other wireless communication device is greater than an amount of signal degradation of the OBSS transmission caused by the SR transmission.

Abstract: Certain aspects of the present disclosure provide techniques for sending a retransmission of codewords of a data packet to a receiver node, that were not previously successfully received by the receiver node, in a manner compatible with a receive capability constraint of the receiver node.

Abstract: Certain aspects of the present disclosure provide techniques for sending a retransmission of codewords of a data packet to a receiver node, that were not previously successfully received by the receiver node, in a manner compatible with a receive capability constraint of the receiver node.

Abstract: When a UE does not completely decode a packet transmitted from a base station, the UE may send ACK/NACK to the base station, upon which the base station may retransmit the packet based on the ACK/NACK. However, the ACK/NACK fails to provide the base station with information needed by the UE for completely decoding the packet. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a packet from a base station having a first MCS, determines information to provide to the base station, wherein the information comprises CQI relating to a channel condition and/or interference condition corresponding to time-frequency resources allocated for the received packet, and sends the information to the base station. Thereafter, the apparatus re-receives the packet from the base station, the re-received packet having a second MCS according to the information sent to the base station.