Patents by Inventor Alexander Dorosenco
Alexander Dorosenco has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11133833Abstract: Techniques for generating a power tracking supply voltage for a circuit (e.g., a power amplifier) are disclosed. The circuit may process multiple transmit signals being sent simultaneously on multiple carriers at different frequencies. In one exemplary design, an apparatus includes a power tracker and a power supply generator. The power tracker determines a power tracking signal based on inphase (I) and quadrature (Q) components of a plurality of transmit signals being sent simultaneously. The power supply generator generates a power supply voltage based on the power tracking signal. The apparatus may further include a power amplifier (PA) that amplifies a modulated radio frequency (RF) signal based on the power supply voltage and provides an output RF signal.Type: GrantFiled: March 8, 2018Date of Patent: September 28, 2021Assignee: QUALCOMM IncorporatedInventor: Alexander Dorosenco
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Publication number: 20210258133Abstract: Aspects of the disclosure relate to an apparatus (e.g., a user equipment (UE)) configured to operate in a full-duplex mode. The apparatus may include at least one transmit chain configured to operate within a first frequency band and at least one receive chain configured to operate within a second frequency band. The apparatus may receive coordination information that is configured to mitigate the self-interference between the at least one transmit chain of the apparatus and the at least one receive chain of the apparatus. In some examples, the received coordination information includes at least one of subcarrier spacing coordination information, beam coordination information, or slot format index coordination information. In some examples, the apparatus may transmit a first signal while receiving a second signal based on at least the subcarrier spacing coordination information, the beam coordination information, or the slot format index coordination information to mitigate self-interference.Type: ApplicationFiled: January 5, 2021Publication date: August 19, 2021Inventors: Vasanthan RAGHAVAN, Tao LUO, Junyi LI, Alexander DOROSENCO, Robert DOUGLAS, Jeremy Darren DUNWORTH, Allen Minh-Triet TRAN
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Publication number: 20210235434Abstract: Methods, systems, and devices for wireless communications are described. A first device may indicate a dynamic beam correspondence operation for communications with a second device. For example, the dynamic beam correspondence operation may be declared in a time-dependent manner, for certain transmission configuration indication (TCI) states, time-dependent TCI states, etc. Additionally or alternatively, the first device may declare no beam correspondence and associated power savings and thermal reductions that result from the lack of beam correspondence. Subsequently, based on the dynamic beam correspondence operation, the second device may identify parameters (e.g., which TCI states, subarrays, etc.) for the first device to use for different modes or procedures (e.g., at a corresponding time) based on parameters that correspond to a full beam correspondence or no beam correspondence.Type: ApplicationFiled: January 25, 2021Publication date: July 29, 2021Inventors: Vasanthan Raghavan, Tao Luo, Junyi Li, Robert Keith Douglas, Alexander Dorosenco
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Publication number: 20210234593Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, a carrier aggregation configuration including two millimeter wave frequency bands for communications. The first wireless device may determine a beam correlation parameter based on the carrier aggregation configuration. The first wireless device may determine beams, based on the beam correlation parameter, in the two frequency bands. The first wireless device and the second wireless device may communicate in carrier aggregation using a beam on a first frequency band and a second beam on a second frequency band.Type: ApplicationFiled: January 25, 2021Publication date: July 29, 2021Inventors: Vasanthan Raghavan, Tao Luo, Junyi Li, Robert Keith Douglas, Alexander Dorosenco
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Publication number: 20210119746Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration signal from a network entity, the configuration signal indicating a configuration for a first positioning reference signal. The UE may determine one or more properties associated with the first positioning reference signal based on the configuration signal. The UE may bypass at least one portion of a transmit chain associated with a scheduled transmission of the first positioning reference signal or a receive chain associated with a scheduled reception of a second positioning reference signal. The UE may then activate, after an end of the transmission or the reception, the at least one portion of the transmit chain associated with the scheduled transmission of the first positioning reference signal or the receive chain associated with a scheduled reception of the second positioning reference signal.Type: ApplicationFiled: September 17, 2020Publication date: April 22, 2021Inventors: Alexandros Manolakos, Sony Akkarakaran, Alexander Dorosenco, Joseph Binamira Soriaga, Tao Luo, Joseph Patrick Burke
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Publication number: 20210075573Abstract: Disclosed are techniques for reporting a group delay-per-frequency lookup table for transmit and receive beams. In an aspect, a user equipment (UE) receives, from a transmission-reception point (TRP), a first downlink reference signal on at least one downlink reference signal resource using a downlink receive beam, transmits, to the TRP, an uplink reference signal on at least one uplink reference signal resource using an uplink transmit beam, determines a parameter representing a difference between a reception time of the first downlink reference signal and a transmission time of the uplink reference signal, transmit the parameter to a network entity, and transmits, to the network entity, a first lookup table or an identifier of the first lookup table, wherein the first lookup table represents per-frequency group delay information for the downlink receive beam and/or the uplink transmit beam.Type: ApplicationFiled: February 19, 2020Publication date: March 11, 2021Inventors: Alexandros MANOLAKOS, Alexander DOROSENCO, Jay KING, Joseph Binamira SORIAGA, Joseph Patrick BURKE
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Patent number: 10931498Abstract: Phase variations between a transmitter (TX) waveform and a receiver (RX) waveform produced by a TX Phase-Locked-Loop (PLL) and a RX PLL, respectively, is a source of error in processing delay calibration used, e.g., in Round Trip Time (RTT) estimation. While a TX waveform and a RX waveform have a constant phase delay while in steady state conditions, during transient times, e.g., at start up or reset, the phase delay may vary by as much as ±180°, which at baseband frequencies of 50 MHz, introduces a random delay variations of as much as ±10 nsec, which is undesirable for fine position estimation using RTT. The phase delay variation between the TX waveform and RX waveform may be reduced or eliminated using a phase correction signal generated using the output signals of the TX PLL and RX PLL.Type: GrantFiled: November 13, 2019Date of Patent: February 23, 2021Assignee: QUALCOMM IncorporatedInventors: Alexander Dorosenco, Carl Hardin, Joseph Patrick Burke, Joseph Binamira Soriaga, Jay King
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Publication number: 20210044472Abstract: Phase variations between a transmitter (TX) waveform and a receiver (RX) waveform produced by a TX Phase-Locked-Loop (PLL) and a RX PLL, respectively, is a source of error in processing delay calibration used, e.g., in Round Trip Time (RTT) estimation. While a TX waveform and a RX waveform have a constant phase delay while in steady state conditions, during transient times, e.g., at start up or reset, the phase delay may vary by as much as ±180°, which at baseband frequencies of 50 MHz, introduces a random delay variations of as much as ±10 nsec, which is undesirable for fine position estimation using RTT. The phase delay variation between the TX waveform and RX waveform may be reduced or eliminated using a phase correction signal generated using the output signals of the TX PLL and RX PLL.Type: ApplicationFiled: November 13, 2019Publication date: February 11, 2021Inventors: Alexander DOROSENCO, Carl HARDIN, Joseph Patrick BURKE, Joseph Binamira SORIAGA, Jay KING
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Publication number: 20200351814Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration signal, the configuration signal indicating a configuration for a positioning reference signal. The UE may determine one or more properties associated with the positioning reference signal based on the configuration signal. The UE may determine an accuracy level associated with one or more timing measurements based on the one or more properties associated with the positioning reference signal, and transmit a measurement report associated with the positioning reference signal to a base station. In some examples, the measurement report may be related to the accuracy level associated with the one or more timing measurements.Type: ApplicationFiled: April 29, 2020Publication date: November 5, 2020Inventors: Alexandros Manolakos, Sony Akkarakaran, Alexander Dorosenco, Joseph Binamira Soriaga, Tao Luo
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Publication number: 20190296779Abstract: Techniques for generating a power tracking supply voltage for a circuit (e.g., a power amplifier) are disclosed. The circuit may process multiple transmit signals being sent simultaneously on multiple carriers at different frequencies. In one exemplary design, an apparatus includes a power tracker and a power supply generator. The power tracker determines a power tracking signal based on inphase (I) and quadrature (Q) components of a plurality of transmit signals being sent simultaneously. The power supply generator generates a power supply voltage based on the power tracking signal. The apparatus may further include a power amplifier (PA) that amplifies a modulated radio frequency (RF) signal based on the power supply voltage and provides an output RF signal.Type: ApplicationFiled: March 8, 2018Publication date: September 26, 2019Inventor: Alexander DOROSENCO
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Publication number: 20170170851Abstract: Techniques for generating a power tracking supply voltage for a circuit (e.g., a power amplifier) are disclosed. The circuit may process multiple transmit signals being sent simultaneously on multiple carriers at different frequencies. In one exemplary design, an apparatus includes a power tracker and a power supply generator. The power tracker determines a power tracking signal based on inphase (I) and quadrature (Q) components of a plurality of transmit signals being sent simultaneously. The power supply generator generates a power supply voltage based on the power tracking signal. The apparatus may further include a power amplifier (PA) that amplifies a modulated radio frequency (RF) signal based on the power supply voltage and provides an output RF signal.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Inventor: Alexander DOROSENCO
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Patent number: 9608675Abstract: Techniques for generating a power tracking supply voltage for a circuit (e.g., a power amplifier) are disclosed. The circuit may process multiple transmit signals being sent simultaneously on multiple carriers at different frequencies. In one exemplary design, an apparatus includes a power tracker and a power supply generator. The power tracker determines a power tracking signal based on inphase (I) and quadrature (Q) components of a plurality of transmit signals being sent simultaneously. The power supply generator generates a power supply voltage based on the power tracking signal. The apparatus may further include a power amplifier (PA) that amplifies a modulated radio frequency (RF) signal based on the power supply voltage and provides an output RF signal.Type: GrantFiled: February 11, 2013Date of Patent: March 28, 2017Assignee: QUALCOMM INCORPORATEDInventor: Alexander Dorosenco
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Patent number: 9553754Abstract: A method and apparatus for reducing distortion of satellite signals modulated using amplitude phase shift keying (APSK) are disclosed. A receiver such as a user terminal receives, from a satellite, a signal including APSK-modulated symbols mapped to a constellation including a plurality of points arranged in an inner circle and in an outer circle; determines, based on the received APSK-modulated symbols, a ratio between a radius of the inner circle of the constellation and a radius of the outer circle of the constellation; generates a correction signal based, at least in part, on a comparison between the determined ratio and a reference ratio; compensates for distortion of the received signal based, at least in part, on the correction signal; mixes the correction signal with the received signal to generate a distortion-compensated signal; and de-modulates the distortion-compensated signal to recover data transmitted from the satellite.Type: GrantFiled: September 10, 2015Date of Patent: January 24, 2017Assignee: QUALCOMM IncorporatedInventors: Alexander Dorosenco, Roy Franklin Quick, Jr.
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Patent number: 9000858Abstract: An ultra-wide band frequency modulator is disclosed. The frequency modulator includes a direct modulation phase lock loop that receives a small component. The frequency modulator also includes a delay module that produces a plurality of delay lines. The frequency modulator further includes an edge selector that receives a large component and the plurality of delay lines.Type: GrantFiled: June 7, 2012Date of Patent: April 7, 2015Assignee: QUALCOMM IncorporatedInventors: Bo Sun, Alexander Dorosenco
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Publication number: 20140226748Abstract: Techniques for generating a power tracking supply voltage for a circuit (e.g., a power amplifier) are disclosed. The circuit may process multiple transmit signals being sent simultaneously on multiple carriers at different frequencies. In one exemplary design, an apparatus includes a power tracker and a power supply generator. The power tracker determines a power tracking signal based on inphase (I) and quadrature (Q) components of a plurality of transmit signals being sent simultaneously. The power supply generator generates a power supply voltage based on the power tracking signal. The apparatus may further include a power amplifier (PA) that amplifies a modulated radio frequency (RF) signal based on the power supply voltage and provides an output RF signal.Type: ApplicationFiled: February 11, 2013Publication date: August 14, 2014Applicant: QUALCOMM INCORPORATEDInventor: Alexander Dorosenco
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Publication number: 20130287065Abstract: An ultra-wide band frequency modulator is disclosed. The frequency modulator includes a direct modulation phase lock loop that receives a small component. The frequency modulator also includes a delay module that produces a plurality of delay lines. The frequency modulator further includes an edge selector that receives a large component and the plurality of delay lines.Type: ApplicationFiled: June 7, 2012Publication date: October 31, 2013Applicant: QUALCOMM INCORPORATEDInventors: Bo Sun, Alexander Dorosenco