Abstract: Certain aspects of the present disclosure provide techniques for distance-based HARQ feedback transmission. A method that may be performed by a user equipment (UE) includes monitoring for a data transmission from another UE, receiving an indication of a first zone identifier (ID), determining a nearest zone to the UE of multiple zones, wherein the multiple zones are determined based at least in part on the indication of the first zone ID, determining a distance between the UE and the other UE based on the first zone ID, wherein the determined distance comprises a distance between the UE and the nearest zone, and transmitting hybrid automatic repeat request (HARQ) feedback for the data transmission based at least on the distance.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a transmitter user equipment (UE) determines a first demodulation reference signal (DMRS) pattern for a first slot allocated for transmission over a sidelink between the transmitter UE and a receiver UE, wherein the first DMRS pattern is determined based at least on the first slot having a first slot format of two or more slot formats, and transmits, to the receiver UE, DMRS in the first slot according to the first DMRS pattern. In an aspect, the receiver UE determines the first DMRS pattern for the first slot based at least on the first slot having the first slot format, and receives, from the transmitter UE, DMRS in the first slot according to the first DMRS pattern.

Abstract: Certain aspects of the present disclosure provide techniques for power allocation for sidelink feedback transmission. A method that may be performed by a user equipment (UE) include receiving one or more data transmissions from one or more other UEs, generating a feedback signal for each of one or more data transmissions, determining a transmission power of the feedback signal for each of one or more data transmissions based on at least one configuration associated with the feedback signal, and transmitting the feedback signal to each of the one or more other UEs using the determined transmission power.

Abstract: Certain aspects of the present disclosure provide techniques for transmitting system information on sidelink. A method that may be performed by a first user equipment (UE) includes receiving first system information from a second UE; determining, based on one or more first parameters, to receive second system information from the second UE; receiving the second system information in a sidelink system information block (S-SIB) from the second UE; and communicating with the second UE via sidelink resources determined based on the first system information and the second system information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may generate a pseudorandom noise (PN) sequence, modulate the PN sequence based at least in part on a modulation order parameter, and transmit the PN sequence in one or more symbols prior to transmitting sidelink data. The one or more symbols used to transmit the PN sequence may be used for automatic gain control (AGC) training at a receiving device. The user equipment may then transmit the sidelink data in a plurality of symbols that are subsequent in time relative to the one or more symbols used to transmit the PN sequence, and the receiving device may process the sidelink data based on the AGC training. Numerous other aspects are provided.

Abstract: Certain aspects of the present disclosure provide techniques for beam management using adaptive learning. Certain aspects provide a method that can be performed by a node, such as user equipment (UE) or a base station (BS). The node determines one or more beams to utilize for a beam management procedure using adaptive learning. The node performs the beam management procedure using the determined one or more beams. In some aspects, the node uses an adaptive reinforcement learning algorithm to select beams for measurement in beam discovery procedure. The node may adaptive the beam management algorithm based on feedback associated with the beam selection, such as based on a throughput achieved using a beam pairing determined during the beam management procedure.

Abstract: Systems and methods for detecting a body part like a human hand near a base station or a user equipment are disclosed. A plurality of radar pulses is transmitted from a communication device in succession and the reflected plurality of radar pulses is received sampled and adaptively processed to remove transmit and receive antenna mutual coupling and clutter from stationary objects near the body part. In one aspect the adaptive processing is accomplished with a single tap adaptive filter. The processed signal may be used to determine if there is a human body part near the communication device allowing the device to determine whether it is safe for the device to transmit a millimeter wave communication signal.

Abstract: An apparatus is disclosed for concurrent wireless communication and object sensing. In an example aspect, the apparatus includes one or more antennas and a wireless transceiver coupled to the one or more antennas. The wireless transceiver is configured to transmit, via the one or more antennas, a communication and sensing signal during a given uplink time slot. The communication and sensing signal comprises an uplink signal associated with the given uplink time slot and a radar signal. The radar signal temporally overlaps at least a portion of the uplink signal.

Abstract: Certain aspects of the present disclosure provide techniques for beam management using adaptive learning. Certain aspects provide a method that can be performed by a node, such as user equipment (UE) or a base station (BS). The node determines one or more beams to utilize for a beam management procedure using adaptive learning. The node performs the beam management procedure using the determined one or more beams. In some aspects, the node uses an adaptive reinforcement learning algorithm to select beams for measurement in beam discovery procedure. The node may adaptive the beam management algorithm based on feedback associated with the beam selection, such as based on a throughput achieved using a beam pairing determined during the beam management procedure.

Abstract: Various aspects described herein relate to cancelling interference in wireless communications. Energy level detection of a received signal can be performed to determine an allocation size and position corresponding to an interfering device in the received signal. An interference demodulation reference signal (DM-RS) and cyclic shift of the interfering device in the received signal can be determined. It can be determined whether to apply successive interference cancellation on the received signal, based at least in part on the allocation size and position and the DM-RS and cyclic shift, to cancel interference from the interfering device.

Abstract: A wireless device may identify a first subband in an unlicensed radio frequency spectrum band used to communicate control traffic. The wireless device may identify a second subband in the unlicensed radio frequency spectrum band used to communicate data traffic. The first subband and the second subband may be different. The wireless device may reserve the first subband for a first duration of time for a plurality of wireless devices. The reservation may be based at least in part on an enhanced self-clear-to-send (self-CTS) transmitted over the first subband.

Abstract: Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with an access point using the first RAT, and a second connection can be established with the access point using the assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT. Data can be communicated with the access point over at least the first connection based at least in part on synchronizing the timing, and control data can be communicated with the access point over at least the second connection, wherein the control data is related to the communicating data over at least the first connection.

Abstract: Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with an access point using the first RAT, and a second connection can be established with the access point using the assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT. Communications with the access point over at least the first connection can be based at least in part on the synchronized timing.

Abstract: Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with a user equipment (UE) using the first RAT, and a second connection can be established with the UE using an assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT, and a neighboring access point can be collaborated with in communicating with a UE over at least the first connection.

Abstract: Various aspects described herein relate to cancelling interference in wireless communications. Energy level detection of a received signal can be performed to determine an allocation size and position corresponding to an interfering device in the received signal. An interference demodulation reference signal (DM-RS) and cyclic shift of the interfering device in the received signal can be determined. It can be determined whether to apply successive interference cancellation on the received signal, based at least in part on the allocation size and position and the DM-RS and cyclic shift, to cancel interference from the interfering device.

Abstract: A wireless device may identify a first subband in an unlicensed radio frequency spectrum band used to communicate control traffic. The wireless device may identify a second subband in the unlicensed radio frequency spectrum band used to communicate data traffic. The first subband and the second subband may be different. The wireless device may reserve the first subband for a first duration of time for a plurality of wireless devices. The reservation may be based at least in part on an enhanced self-clear-to-send (self-CTS) transmitted over the first subband.

Abstract: Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with a user equipment (UE) using the first RAT, and a second connection can be established with the UE using an assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT, and a neighboring access point can be collaborated with in communicating with a UE over at least the first connection.

Abstract: Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with an access point using the first RAT, and a second connection can be established with the access point using the assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT. Data can be communicated with the access point over at least the first connection based at least in part on synchronizing the timing, and control data can be communicated with the access point over at least the second connection, wherein the control data is related to the communicating data over at least the first connection.

Abstract: Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with an access point using the first RAT, and a second connection can be established with the access point using the assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT. Communications with the access point over at least the first connection can be based at least in part on the synchronized timing.