Patents by Inventor Allen Minh-Triet Tran
Allen Minh-Triet Tran 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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Publication number: 20240356217Abstract: Aspects of the disclosure relate to a controllable reflective surface (e.g., reconfigurable intelligent surfaces (RIS)) that reflects in multiple directions simultaneously. The controllable reflective surface may include an array of reflecting elements, each reflecting element comprising a radiating component and a phase-shifting component. The array of reflecting elements may be configured to receive control signal sets, where each control signal set configures the array of reflecting elements into a reflecting configuration having a plurality of subsets of the reflecting elements. Here, each subset of the plurality of subsets is configured to reflect radio frequency (RF) signals in a respective direction different from other ones of the first plurality of subsets. The reflecting configuration may define, for example, a block-wise configuration, and interlaced configuration, or a hybrid configuration of the plurality of subsets. Other aspects, embodiments, and features are also claimed and described.Type: ApplicationFiled: October 6, 2021Publication date: October 24, 2024Inventors: Danlu Zhang, Yu Zhang, Tingfang Ji, Allen Minh-Triet Tran
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Patent number: 11991643Abstract: Generally, the described techniques provide for efficiently transmitting uplink signals to a base station using shared antennas associated with different power classes. A first device may be in communications with a base station using local antennas and may identify a second device having auxiliary antennas available for transmitting uplink signals to the base station. The local and auxiliary antennas may be associated with different power classes, and the first device may transmit a message to a base station indicating that the first device is capable of transmitting using antennas associated with different power classes. The first device may then receive configurations from a base station of different transmit powers to transmit on the antennas associated with the different power classes, and the first device may transmit uplink signals to the base station in accordance with the different transmit power configurations.Type: GrantFiled: February 22, 2022Date of Patent: May 21, 2024Assignee: QUALCOMM IncorporatedInventors: Yi Huang, Prashanth Haridas Hande, Jay Kumar Sundararajan, Gokul Sridharan, Wei Yang, Wanshi Chen, Krishna Kiran Mukkavilli, Allen Minh-Triet Tran, Joseph Patrick Burke, Naga Bhushan
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Publication number: 20240163805Abstract: During an uplink TDD slot, an UL UE transmits an UL signal that occupies a slot frequency range. Similarly, during a DL TDD slot, a DL UE receives a DL signal that occupies the slot frequency range. But during an SBFD slot, a UL UE transmits a UL signal that occupies only a first sub-band of the slot frequency range. Similarly, a DL UE receives a DL signal during an SBFD slot that occupies only a second sub-band of the slot frequency range. The second sub-band is distinct from the first sub-band. The DL UE may thus mitigate UE-to-UE interference during an SBFD slot by filtering the DL signal to substantially block the second sub-band from being received at the DL UE.Type: ApplicationFiled: January 25, 2024Publication date: May 16, 2024Inventors: Joseph Patrick BURKE, Muhammad Sayed Khairy ABDELGHAFFAR, Charline HAO, Joseph Binamira SORIAGA, Lai Kan LEUNG, Gurkanwal Singh SAHOTA, Tingfang JI, Krishna Kiran MUKKAVILLI, Allen Minh-Triet TRAN
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Publication number: 20240106520Abstract: Aspects of the disclosure related to devices, wireless communication apparatuses, methods, and other aspects of passive multiple input multiple output. In some aspects, an apparatus is provided that includes a first radio frequency (RF) transmission line having a first terminated with a quarter wavelength grounded transmission line, and a first array of antennas including a plurality of antenna elements. The apparatus also includes a switch array including a corresponding switch for each antenna element of the plurality of antenna elements of the first array of antennas, to selectively connect each antenna element to the first RF transmission line, and path lengths selectable by the switches at half wavelength distances for passive transmission. The apparatus also includes or more lens elements configured to modify wireless inputs signals to the first array of antennas and to modify wireless output signals from the first array of antennas.Type: ApplicationFiled: September 23, 2022Publication date: March 28, 2024Inventors: Mohsen FARMAHINI FARAHANI, Lida AKHOONDZADEHASL, Allen Minh-Triet TRAN
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Publication number: 20240106500Abstract: Designs and control techniques for passive Multiple-Input Multiple-Output (pMIMO) surfaces are provided. An example array of reconfigurable reflective elements includes a plurality of unit cells each comprising a cross-slot radiating element, a first varactor diode disposed across a first end of the cross-slot radiating element and configured to control polarization in a first plane, and a second varactor diode disposed across a second end of the cross-slot radiating element and configured to control polarization in a second plane, and a controller coupled to the first varactor diode and the second varactor diode and configured to provide control signals to the first varactor diode and the second varactor diode to vary a direction of a reflected signal.Type: ApplicationFiled: September 23, 2022Publication date: March 28, 2024Inventors: Lida AKHOONDZADEHASL, Mohsen FARMAHINI FARAHANI, Allen Minh-Triet TRAN
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Publication number: 20240106130Abstract: A method of using an antenna system, comprising a transducer that is configured to transduce between wireless signals and wired signals and that is disposed between a ground conductor and a frequency selective surface, includes: providing constructive interference between a first signal of a first frequency and a reflected first signal comprising a reflection of a portion of the first signal by the frequency selective surface and the ground conductor; and providing constructive interference between a second signal of a second frequency, different from the first frequency, and a reflected second signal comprising a reflection of a portion of the second signal by the frequency selective surface and the ground conductor.Type: ApplicationFiled: September 23, 2022Publication date: March 28, 2024Inventors: Mahmoud SHIRAZI, Guining SHI, Allen Minh-Triet TRAN, Derek PUNCH
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Patent number: 11910326Abstract: During an uplink TDD slot, an UL UE transmits an UL signal that occupies a slot frequency range. Similarly, during a DL TDD slot, a DL UE receives a DL signal that occupies the slot frequency range. But during an SBFD slot, a UL UE transmits a UL signal that occupies only a first sub-band of the slot frequency range. Similarly, a DL UE receives a DL signal during an SBFD slot that occupies only a second sub-band of the slot frequency range. The second sub-band is distinct from the first sub-band. The DL UE may thus mitigate UE-to-UE interference during an SBFD slot by filtering the DL signal to substantially block the second sub-band from being received at the DL UE.Type: GrantFiled: October 31, 2020Date of Patent: February 20, 2024Assignee: QUALCOMM IncorporatedInventors: Joseph Patrick Burke, Muhammad Sayed Khairy Abdelghaffar, Charline Hao, Joseph Binamira Soriaga, Lai Kan Leung, Gurkanwal Singh Sahota, Tingfang Ji, Krishna Kiran Mukkavilli, Allen Minh-Triet Tran
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Publication number: 20230395994Abstract: Aspects relate to an array antenna and communication using the array antenna. In some examples, the array antenna includes a first array of antenna elements arranged according to a first circle and a second array of antenna elements arranged according to a second circle, where the first circle and the second circle are concentric circles. In some examples, the first array of antenna elements is arranged with an angular offset with respect to the second array of antenna elements. For example, a first radius associated with a first antenna element of the first array of antenna elements may be offset at an angle with respect to a second radius of a second antenna element of the second array of antenna elements.Type: ApplicationFiled: June 1, 2022Publication date: December 7, 2023Inventors: Danlu ZHANG, Meilong JIANG, Juergen CEZANNE, Junyi LI, Ashwin SAMPATH, Yu ZHANG, Allen Minh-Triet TRAN
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Patent number: 11818739Abstract: Methods, systems, and devices for wireless communications are described for self-interference or cross-link interference measurements at a user equipment (UE). A UE may receive configuration information from a base station that indicates one or more slot format index (SFI) values that are compatible for cross-link interference or self-interference measurements. Based on the configured SFI(s), the UE may measure interference in multiple symbols, which may be used to estimate an amount of cross-link interference or self-interference, and the UE may transmit a measurement report to the base station. The base station, based on the measurement report, may identify one or more compatible SFIs, beam pairs, or combinations thereof, for subsequent communications with one or more UEs. The interference measurements may identify cross-link interference at the UE that results from transmissions of a different UE, or may identify self-interference of concurrent communications of multiple channels at a same UE.Type: GrantFiled: April 6, 2021Date of Patent: November 14, 2023Assignee: QUALCOMM IncorporatedInventors: Vasanthan Raghavan, Alexander Dorosenco, Tao Luo, Robert Douglas, Jeremy Darren Dunworth, Junyi Li, Allen Minh-Triet Tran
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Publication number: 20230353225Abstract: A wireless communication device includes: a first antenna configured to provide a first gain pattern at a millimeter-wave radio frequency and having a first boresight direction; a second antenna configured to provide a second gain pattern at the millimeter-wave radio frequency and having a second boresight direction that is different from the first boresight direction; and an electrically-conductive device; where the first antenna, in combination with the electrically-conductive device, is configured to provide a third gain pattern that has a first gain differential relative to the second gain pattern that is greater than a second gain differential between the first gain pattern and the second gain pattern over a range of angles relative to the wireless communication device.Type: ApplicationFiled: July 6, 2023Publication date: November 2, 2023Inventors: Lizhi ZHENG, Guining SHI, Allen Minh-Triet TRAN, Mahmoud SHIRAZI
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Publication number: 20230275646Abstract: A wireless communication device includes: a first antenna configured to provide a first gain pattern at a millimeter-wave radio frequency and having a first boresight direction; a second antenna configured to provide a second gain pattern at the millimeter-wave radio frequency and having a second boresight direction that is different from the first boresight direction; and an electrically-conductive device; where the first antenna, in combination with the electrically-conductive device, is configured to provide a third gain pattern that has a first gain differential relative to the second gain pattern that is greater than a second gain differential between the first gain pattern and the second gain pattern over a range of angles relative to the wireless communication device.Type: ApplicationFiled: February 28, 2022Publication date: August 31, 2023Inventors: Lizhi ZHENG, Guining SHI, Allen Minh-Triet TRAN, Mahmoud SHIRAZI
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Patent number: 11736176Abstract: A wireless communication device includes: a first antenna configured to provide a first gain pattern at a millimeter-wave radio frequency and having a first boresight direction; a second antenna configured to provide a second gain pattern at the millimeter-wave radio frequency and having a second boresight direction that is different from the first boresight direction; and an electrically-conductive device; where the first antenna, in combination with the electrically-conductive device, is configured to provide a third gain pattern that has a first gain differential relative to the second gain pattern that is greater than a second gain differential between the first gain pattern and the second gain pattern over a range of angles relative to the wireless communication device.Type: GrantFiled: February 28, 2022Date of Patent: August 22, 2023Assignee: QUALCOMM IncorporatedInventors: Lizhi Zheng, Guining Shi, Allen Minh-Triet Tran, Mahmoud Shirazi
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Patent number: 11611422Abstract: A base station is disclosed that includes two separated antenna arrays. In a TDD mode of operation, both arrays are used for either transmit or receive. In a sub-band full-duplex mode of operation, one array is used to transmit downlink symbols while the remaining array is used to receive uplink symbols.Type: GrantFiled: October 31, 2020Date of Patent: March 21, 2023Assignee: QUALCOMM IncorporatedInventors: Charline Hao, Lida Akhoondzadehasl, Joseph Patrick Burke, Dai Lu, Muhammad Sayed Khairy Abdelghaffar, Allen Minh-Triet Tran, Shimman Arvind Patel, Tingfang Ji, Krishna Kiran Mukkavilli
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Patent number: 11611424Abstract: 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: GrantFiled: January 5, 2021Date of Patent: March 21, 2023Assignee: QUALCOMM IncorporatedInventors: Vasanthan Raghavan, Tao Luo, Junyi Li, Alexander Dorosenco, Robert Douglas, Jeremy Darren Dunworth, Allen Minh-Triet Tran
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Publication number: 20220311497Abstract: A first wireless communication device, such as a base station, may include separate transmit and receive antenna arrays. The separation between the transmit and receive antenna arrays may cause a direction of a transmit beam formed at the transmit antenna array to be different from a direction of a receive beam formed at the receive antenna array. The transmit and receive beams may be formed for communication with a second wireless communication device, such as a user equipment (UE). The described aspects enable the first wireless communication device to monitor a difference between a first direction of the transmit beam and a second direction of the receive beam. The first wireless communication device may transmit an indication of a beam correspondence failure to the second wireless communication device when the difference between the first and second directions is greater than or equal to a beam correspondence threshold.Type: ApplicationFiled: March 29, 2021Publication date: September 29, 2022Inventors: Vasanthan RAGHAVAN, Juergen CEZANNE, Junyi LI, Allen Minh-Triet TRAN
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Publication number: 20220182946Abstract: Generally, the described techniques provide for efficiently transmitting uplink signals to a base station using shared antennas associated with different power classes. A first device may be in communications with a base station using local antennas and may identify a second device having auxiliary antennas available for transmitting uplink signals to the base station. The local and auxiliary antennas may be associated with different power classes, and the first device may transmit a message to a base station indicating that the first device is capable of transmitting using antennas associated with different power classes. The first device may then receive configurations from a base station of different transmit powers to transmit on the antennas associated with the different power classes, and the first device may transmit uplink signals to the base station in accordance with the different transmit power configurations.Type: ApplicationFiled: February 22, 2022Publication date: June 9, 2022Inventors: Yi Huang, Prashanth Haridas Hande, Jay Kumar Sundararajan, Gokul Sridharan, Wei Yang, Wanshi Chen, Krishna Kiran Mukkavilli, Allen Minh-Triet Tran, Joseph Patrick Burke, Naga Bhushan
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Patent number: 11329780Abstract: Disclosed are techniques for determining a line-of-sight (LOS) path between a transmitter and a wireless device. In an aspect, a wireless device receives a first reference signal on a first frequency band at a first time, receives a second reference signal on a second frequency band at a second time, compares the first time to the second time, and determines, at least based on the comparison of the first time to the second time, which of the first reference signal and/or the second reference signal followed the LOS path between the transmitter and the wireless device.Type: GrantFiled: January 10, 2020Date of Patent: May 10, 2022Assignee: QUALCOMM IncorporatedInventors: Joseph Binamira Soriaga, Alexandros Manolakos, Naga Bhushan, Jay Kumar Sundararajan, Allen Minh-Triet Tran, Tingfang Ji
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Patent number: 11272459Abstract: Generally, the described techniques provide for efficiently transmitting uplink signals to a base station using shared antennas associated with different power classes. A first device may be in communications with a base station using local antennas and may identify a second device having auxiliary antennas available for transmitting uplink signals to the base station. The local and auxiliary antennas may be associated with different power classes, and the first device may transmit a message to a base station indicating that the first device is capable of transmitting using antennas associated with different power classes. The first device may then receive configurations from a base station of different transmit powers to transmit on the antennas associated with the different power classes, and the first device may transmit uplink signals to the base station in accordance with the different transmit power configurations.Type: GrantFiled: October 9, 2020Date of Patent: March 8, 2022Assignee: QUALCOMM IncorporatedInventors: Yi Huang, Prashanth Haridas Hande, Jay Kumar Sundararajan, Gokul Sridharan, Wei Yang, Wanshi Chen, Krishna Kiran Mukkavilli, Allen Minh-Triet Tran, Joseph Patrick Burke, Naga Bhushan
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Patent number: 11265744Abstract: Disclosed are techniques for determining a line-of-sight (LOS) path between a transmitter and a wireless device in a wireless communications network. In an aspect, a wireless device receives, from the transmitter, a first reference signal transmitted on a first antenna port and a second reference signal transmitted on a second antenna port, the first reference signal having a first polarization and the second reference signal having a second polarization with known difference (e.g., perpendicular) to the first polarization, compares multi-path channels estimated from reception of the first reference signal and the second reference signal to multi-path channels expected from the first reference signal and the second reference signal when transmitted along the LOS path between the transmitter and the wireless device, and determines which path (if any) of the multi-path channels corresponds to the LOS path between the transmitter and the wireless device.Type: GrantFiled: January 10, 2020Date of Patent: March 1, 2022Assignee: QUALCOMM IncorporatedInventors: Joseph Binamira Soriaga, Alexandros Manolakos, Sony Akkarakaran, Naga Bhushan, Allen Minh-Triet Tran, Charles Edward Wheatley, Tao Luo, Tingfang Ji
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Publication number: 20210321415Abstract: Methods, systems, and devices for wireless communications are described for self-interference or cross-link interference measurements at a user equipment (UE). A UE may receive configuration information from a base station that indicates one or more slot format index (SFI) values that are compatible for cross-link interference or self-interference measurements. Based on the configured SFI(s), the UE may measure interference in multiple symbols, which may be used to estimate an amount of cross-link interference or self-interference, and the UE may transmit a measurement report to the base station. The base station, based on the measurement report, may identify one or more compatible SFIs, beam pairs, or combinations thereof, for subsequent communications with one or more UEs. The interference measurements may identify cross-link interference at the UE that results from transmissions of a different UE, or may identify self-interference of concurrent communications of multiple channels at a same UE.Type: ApplicationFiled: April 6, 2021Publication date: October 14, 2021Inventors: Vasanthan Raghavan, Alexander Dorosenco, Tao Luo, Robert Douglas, Jeremy Darren Dunworth, Junyi Li, Allen Minh-Triet Tran