Qualcomm Incorporated

Haim Mendel Weissman

Assaf Touboul

Michael Levitsky

Eli Yona

Avigdor Brillant

Rimon E Mansour

Jeremy M Stein

Lior Raviv

Igor Gutman

Sumit Verma

Alexander Vladimir Sverdlov

Joseph Patrick Burke

Vladimir Aparin

Cheol Hee Park

Mazhareddin Taghivand

Xiaoyin He

Paul J Draxler

Vijay Chellappa

Michael Leviant

In Hyuck Yeo

Jungsik Park

David Pezo

Tao Luo

Junyi Li

Sony Akkarakaran

Jung Ho Ryu

Shay Landis

Hua Wang

Gideon Shlomo Kutz

Amit Bar-Or Tillinger

Guy Wolf

Peer Berger

Arthur Gubeskys

Lior Uziel

Tao Li

Christian Holenstein

Francesco Gatta

Ariel Yaakov Sagi

Moshe Ben-Ari

James Ian Jaffee

Gregory C Steele

Mahim Ranjan

Elimelech Ganchrow

Ryan Scott Castro Spring

Yossef Tsfaty

Cheng Tan

Susanta Sengupta

Mehmet Uzunkol

Yuval Carmel

Arik Mimran

Raviv Lior

Yossi Tsfati

Eili Yona

Eli Yonah

Rakesh Jalota

Methods and apparatus for performing automatic gain control (AGC) in bypass and filter modes for radio frequency (RF) front-end circuitry are described. An example method includes operating a receiver in a first mode during a first set of symbols of a first subframe. The method also includes, during a first symbol of the first subframe outside the first set of symbols, determining whether to operate the receiver in the first mode or a second mode in a second subframe, based at least in part on an output of a jamming detection circuit of the receiver in the first symbol. The method also includes controlling the receiver to operate in the first mode or the second mode in the second subframe, in accordance with the determination.

Fast automatic gain control in bypass and filter modes

A method of wireless communication of a wireless device in a C-V2X connection may include: determining a first WBEE of a symbol at a first bandwidth, the symbol being associated with no expected C-V2X transmissions, determining a second WBEE of the symbol at a second bandwidth, and identifying an interference based on the first WBEE and the second WBEE. The method may also include notifying an operator of the wireless device about the identified interference.

Interference identification in C-V2X communication

Methods, systems, and devices for wireless communications are described. In some examples, a sidelink user equipment (UE) may monitor a set of symbols over a wireless channel. The set of symbols may include at least a first subset of symbols and a second subset of symbols. A quantity of symbols included in the first subset of symbols may be based on a carrier frequency of the wireless channel, a symbol length of the wireless channel, a subcarrier spacing (SCS) of the wireless channel or a capability of the sidelink UE. Further, the sidelink UE may receive a sidelink transmission over the second subset of symbols, where a starting position of the second subset of symbols is defined according to the quantity of symbols included in the first subset of symbols

Enhanced automatic gain control for sidelink communication

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.

Mitigation of inter-band interference to receivers by allocating alerts in frequency domain based on severity

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.

Hybrid in-band same frequency full-duplex and offset-frequency full-duplex wireless communication

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.

Transceiver calibrations at silent periods

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.

Antenna switch diversity or cyclic delay diversity selection

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.

Techniques for full duplex wireless communications

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to operate in an antenna switch diversity mode to transmit an uplink signal according to an antenna switching pattern, the antenna switching pattern comprising switching between a first transmit chain coupled to a first antenna and a second transmit chain coupled to a second antenna. The UE may transmit at least a first portion of the uplink signal using the first transmit chain coupled to the first antenna, the first transmit chain coupled to the first antenna. The UE may transmit at least a second portion of the uplink signal using the second transmit chain coupled to the second antenna, the second transmit chain coupled to the second antenna.

Low cost power efficient antenna switch diversity and cyclic delay diversity transceiver

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.

Navigation techniques for autonomous and semi-autonomous vehicles

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.

Transceiver configuration for millimeter wave wireless communications

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.

Self-interference cancellation for in-band full-duplex wireless communication

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.

Extended localization range and assets tracking

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Haifa, Israel

Haim Mendel Weissman