Abstract: A transmitting device may select frequency domain resources for an alert transmission based on a severity level of the alert transmission. The transmitting device may determine a severity level of an alert transmission to be transmitted on one or more available channels. The transmitting device may determine a presence of one or more systems configured to transmit on one or more neighbor channels of the one or more available channels. The transmitting device may select, for the alert transmission, frequency domain resources within the one or more available channels based on the presence of the one or more systems and the severity level. The frequency domain resources for a highest severity level transmission are spaced further apart from the one or more neighbor channels in the frequency domain than resources for a lower severity level transmission. The transmitting device may transmit the alert transmission on the frequency domain resources.

Abstract: Wireless communications systems and methods related to hybrid in-band same-frequency full-duplex (SFFD) and frequency-offset-frequency full-duplex (FD) wireless communication are provided. A user equipment (UE) transmits first data to a base station (BS) over a first frequency band while receiving second data from the BS the first frequency band responsive to a first pathloss between the UE and the BS satisfying a threshold for an SFFD operation. The UE transmits third data to the BS over a second frequency band while receiving fourth data from the BS over a third frequency band that is distinct from the second frequency band according to an offset-frequency FD operation responsive to a second pathloss between the UE and the BS failing to satisfying the threshold.

Abstract: The apparatus operates communicates with a second wireless device during an active period and performs a radio impairment calibration during a periodic silent period. The calibration may include a receiver calibration, e.g., including gain state training. The calibration may comprise a transmitter calibration.

Abstract: Aspects described herein relate to configuring devices for performing full duplex communications, which may include inband full duplex communications for a given device or concurrent uplink and downlink communications for pairs or groups of devices.

Abstract: A transmitting device may select frequency domain resources for an alert transmission based on a severity level of the alert transmission. The transmitting device may determine a severity level of an alert transmission to be transmitted on one or more available channels. The transmitting device may determine a presence of one or more systems configured to transmit on one or more neighbor channels of the one or more available channels. The transmitting device may select, for the alert transmission, frequency domain resources within the one or more available channels based on the presence of the one or more systems and the severity level. The frequency domain resources for a highest severity level transmission are spaced further apart from the one or more neighbor channels in the frequency domain than resources for a lower severity level transmission. The transmitting device may transmit the alert transmission on the frequency domain resources.

Abstract: A transmitting device may select frequency domain resources for an alert transmission based on a severity level of the alert transmission. The transmitting device may determine a severity level of an alert transmission to be transmitted on one or more available channels. The transmitting device may determine a presence of one or more systems configured to transmit on one or more neighbor channels of the one or more available channels. The transmitting device may select, for the alert transmission, frequency domain resources within the one or more available channels based on the presence of the one or more systems and the severity level. The frequency domain resources for a highest severity level transmission are spaced further apart from the one or more neighbor channels in the frequency domain than resources for a lower severity level transmission. The transmitting device may transmit the alert transmission on the frequency domain resources.

Abstract: Techniques for operating a navigation system are provided. An example method according to these techniques includes determining a first localization solution associated with a location of the vehicle in a navigable environment using a radar transceiver of the navigation system, determining a second localization solution associated with the location of the vehicle in the navigable environment using a LiDAR transceiver, a camera, or both of the navigation system, selecting a localization solution from the first and second localization solutions based on whether an accuracy of the first localization exceeds an accuracy of the second localization solution, and utilizing the selected vehicle localization solution for navigation of the vehicle through the navigable environment.

Abstract: Methods, systems, and devices are described for transceiver architecture for millimeter wave wireless communications. A device may include two transceiver chip modules configured to communicate in different frequency ranges. The first transceiver chip module may include a baseband sub-module, a first radio frequency front end (RFFE) component and associated antenna array. The second transceiver chip module may include a second RFFE component and associated antenna array. The second transceiver chip module may be separate from the first transceiver chip module. The second transceiver chip module may be electrically coupled to the baseband sub-module of the first transceiver chip module.

Abstract: A transmitting device may select frequency domain resources for an alert transmission based on a severity level of the alert transmission. The transmitting device may determine a severity level of an alert transmission to be transmitted on one or more available channels. The transmitting device may determine a presence of one or more systems configured to transmit on one or more neighbor channels of the one or more available channels. The transmitting device may select, for the alert transmission, frequency domain resources within the one or more available channels based on the presence of the one or more systems and the severity level. The frequency domain resources for a highest severity level transmission are spaced further apart from the one or more neighbor channels in the frequency domain than resources for a lower severity level transmission. The transmitting device may transmit the alert transmission on the frequency domain resources.

Abstract: An in-band full-duplex transceiver includes a self-interference mixer for up-converting an adjusted digital baseband signal into an up-converted self-interference cancellation signal. The adjusted digital baseband signal has a phase opposite to a phase for a leakage signal from a leakage path for the transceiver. Similarly, the adjusted digital baseband signal has a magnitude matching a magnitude for the leakage signal. Given this phasing and magnitude for the up-converted self-interference signal, it substantially cancels the leakage signal when added with a received signal contaminated by the leakage signal.

Abstract: Aspects relate to mechanisms for a wireless communication device to select between a cyclic delay diversity mode and an antenna switch diversity mode for transmission of a signal based on at least one parameter associated with communication over a wireless channel. The parameter(s) may include a channel estimation parameter associated with the wireless channel, a communication parameter associated with at least one communication on the wireless channel, or a combination thereof.

Abstract: Aspects described herein relate to configuring devices for performing full duplex communications, which may include inband full duplex communications for a given device or concurrent uplink and downlink communications for pairs or groups of devices.

Abstract: The apparatus operates communicates with a second wireless device during an active period and performs a radio impairment calibration during a periodic silent period. The calibration may include a receiver calibration, e.g., including gain state training. The calibration may comprise a transmitter calibration.

Abstract: Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a first signal associated with a first radio access technology (RAT) and receive a second signal associated with a second RAT. In some aspects, the UE may include one or more receiver chains associated with the first RAT and at least one receiver chain associated with the second RAT. The UE may couple, via one or more switches and based at least in part on respective energy levels associated with the first signal and the second signal satisfying one or more conditions, an output from a front end of the at least one receiver chain associated with the second RAT to the one or more receiver chains associated with the first RAT. Numerous other aspects are provided.

Abstract: An in-band full-duplex transceiver includes a self-interference mixer for up-converting an adjusted digital baseband signal into an up-converted self-interference cancellation signal. The adjusted digital baseband signal has a phase opposite to a phase for a leakage signal from a leakage path for the transceiver. Similarly, the adjusted digital baseband signal has a magnitude matching a magnitude for the leakage signal. Given this phasing and magnitude for the up-converted self-interference signal, it substantially cancels the leakage signal when added with a received signal contaminated by the leakage signal.

Abstract: Methods, systems, and devices are described for transceiver architecture for millimeter wave wireless communications. A device may include two transceiver chip modules configured to communicate in different frequency ranges. The first transceiver chip module may include a baseband sub-module, a first radio frequency front end (RFFE) component and associated antenna array. The second transceiver chip module may include a second RFFE component and associated antenna array. The second transceiver chip module may be separate from the first transceiver chip module. The second transceiver chip module may be electrically coupled to the baseband sub-module of the first transceiver chip module.

Abstract: Methods, systems, and devices are described for transceiver architecture for millimeter wave wireless communications. A device may include two transceiver chip modules configured to communicate in different frequency ranges. The first transceiver chip module may include a baseband sub-module, a first radio frequency front end (RFFE) component and associated antenna array. The second transceiver chip module may include a second RFFE component and associated antenna array. The second transceiver chip module may be separate from the first transceiver chip module. The second transceiver chip module may be electrically coupled to the baseband sub-module of the first transceiver chip module.

Abstract: Techniques for operating a self-driving or driver-assist vehicle or other autonomous or semi-autonomous machines are provided. A method according to these techniques includes transmitting a first signal, via an ultra-high frequency (UHF) band, to one or more markers; receiving return signals, at a radar transceiver via a second frequency range different from the UHF band, from the one or more markers; and determining one or more estimate locations of the navigation system based on the return signals.

Abstract: A method includes: transmitting, from a reader device, a first set of wireless signals, in a first frequency band, detectable by RFID transponder devices; transmitting, from the reader device, a second set of wireless signals, at a second frequency band different from the first frequency band, detectable by the RFID transponder devices; detecting, at the reader device, a set of reply wireless signals transmitted by one or more of the RFID transponder devices in response to the first set of wireless signals, the set of reply signals comprising identification data associated with the one or more of the RFID transponder devices, and orientation information representative of relative orientation of the respective one or more of the RFID transponder devices to the reader device; and deriving location information for at least one of the one or more of the RFID transponder devices based on the detected set of reply wireless signals.

Abstract: Wireless communications systems and methods related to hybrid in-band same-frequency full-duplex (SFFD) and frequency-offset-frequency full-duplex (FD) wireless communication are provided. A user equipment (UE) transmits first data to a base station (BS) over a first frequency band while receiving second data from the BS the first frequency band responsive to a first pathloss between the UE and the BS satisfying a threshold for an SFFD operation. The UE transmits third data to the BS over a second frequency band while receiving fourth data from the BS over a third frequency band that is distinct from the second frequency band according to an offset-frequency FD operation responsive to a second pathloss between the UE and the BS failing to satisfying the threshold.