Patents by Inventor Raghu Narayan

Raghu Narayan 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).

  • Patent number: 11976245
    Abstract: Processes herein may be used to thermally crack various hydrocarbon feeds, and may eliminate the refinery altogether while making the crude to chemicals process very flexible in terms of crude. In embodiments herein, crude is progressively separated into at least light and heavy fractions. Depending on the quality of the light and heavy fractions, these are routed to one of three upgrading operations, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a residue hydrocracking unit that may utilize an ebullated bed reactor. Products from the upgrading operations may be used as feed to a steam cracker.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 7, 2024
    Assignees: LUMMUS TECHNOLOGY LLC, Saudi Aramco Technologies Company, Chevron Lummus Global LLC
    Inventors: Essam Abdullah Al-Sayed, Ujjal Mukherjee, Kareemuddin Shaik, Pedro Santos, Theodorus Maesen, Mazin Tamimi, Julie Chabot, Ibrahim Abba, Kandasamy Sundaram, Sami Barnawi, Ronald Venner, Raghu Narayan, Meredith Lansdown
  • Publication number: 20240146379
    Abstract: Methods and apparatus for beam management where a beam is selected based on an estimated channel correlation matrix. The apparatus determines a channel correlation matrix based on downlink SSB reference signal received at the UE. The apparatus estimates a RSRP of a plurality of beams associated with an uplink channel based on the channel correlation matrix and associated beam weights. The apparatus selects a first beam from the plurality of beams having a highest estimated RSRP for communication with a base station. The apparatus communicates with the base station via the first beam.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 2, 2024
    Inventors: Kang GAO, Yongle WU, Jun ZHU, Mihir Vijay LAGHATE, Derrick Albert CHU, Raghu Narayan CHALLA
  • Publication number: 20240147449
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform a beam sweeping procedure that selects a communication beam for communicating in a wireless network, the beam sweeping procedure being based at least in part on a beam sweeping subset of beams that is dynamically selected from a plurality of beams based at least in part on a current UE operating state. The UE may communicate in the wireless network based at least in part on the communication beam that is selected based at least in part on the beam sweeping procedure. Numerous other aspects are described.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 2, 2024
    Inventors: Jun ZHU, Mihir Vijay LAGHATE, Raghu Narayan CHALLA
  • Publication number: 20240129013
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a first throughput on a first beam of the UE, wherein the first beam is associated with a first number of antenna elements. The UE may identify an estimated maximum throughput of the UE. The UE may communicate, based at least in part on the first throughput being greater than the estimated maximum throughput, using a second beam, the second beam having a second throughput that is greater than the estimated maximum throughput, and the second beam being associated with a second number of antenna elements lesser than the first number of antenna elements. Numerous other aspects are described.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 18, 2024
    Inventors: Jun ZHU, Mihir Vijay LAGHATE, Leena ZACHARIAS, Raghu Narayan CHALLA
  • Patent number: 11959032
    Abstract: A process for steam cracking a whole crude including a volatilization step performed to maintain a relatively large hydrocarbon droplet size. The process may include contacting a whole crude with steam to volatilize a portion of the hydrocarbons, wherein the contacting of the hydrocarbon feedstock and steam is conducted at an initial relative velocity of less than 30 m/s, for example. The resulting vapor phase, including volatilized hydrocarbons and steam may then be separated from a liquid phase comprising unvaporized hydrocarbons. The hydrocarbons in the vapor phase may then be forwarded to a steam pyrolysis reactor for steam cracking of the hydrocarbons in the vapor phase.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 16, 2024
    Assignees: LUMMUS TECHNOLOGY LLC, Saudi Arabian Technology Company
    Inventors: Dennis Maloney, Kandasamy Sundaram, Raghu Narayan, Abdul Rahman Zafer Akhras
  • Patent number: 11956052
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a first throughput on a first beam of the UE, wherein the first beam is associated with a first number of antenna elements. The UE may identify an estimated maximum throughput of the UE. The UE may communicate, based at least in part on the first throughput being greater than the estimated maximum throughput, using a second beam, the second beam having a second throughput that is greater than the estimated maximum throughput, and the second beam being associated with a second number of antenna elements lesser than the first number of antenna elements. Numerous other aspects are described.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: April 9, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Zhu, Mihir Vijay Laghate, Leena Zacharias, Raghu Narayan Challa
  • Publication number: 20240114497
    Abstract: In some aspects, the present disclosure provides methods, apparatuses, and systems for efficient thermal mitigation while maintaining wireless device performance on a primary component carrier (PCC). Embodiments described may include implementation of target transceiver module configurations, where bandwidth (e.g., PCC bands and secondary component carrier (SCC) bands) may be monitored by a wireless device based on intra-module target configurations and/or inter-module target configurations. An intra-module target configuration may include a target transceiver module monitoring both PCC bands and SCC bands. An inter-module target configuration may include or refer to a plurality of target transceiver modules together monitoring PCC bands and SCC bands.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Mahbod GHELICHI, James Francis GEEKIE, Raghu Narayan CHALLA, Mihir Vijay LAGHATE, Ruhua HE, Yong LI
  • Publication number: 20240106519
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may estimate a throughput requirement associated with a communication between the UE and a network node. The UE may select a beam level, of multiple candidate beam levels capable of satisfying the throughput requirement, that is associated with a lowest power consumption. The UE may communicate with the network node using the beam level. Numerous other aspects are described.
    Type: Application
    Filed: September 27, 2022
    Publication date: March 28, 2024
    Inventors: Jun ZHU, Mihir Vijay LAGHATE, Raghu Narayan CHALLA, Brian Clarke BANISTER
  • Publication number: 20240107352
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first reference signal (RS). The UE may identify a set of UE beams based at least in part on signal strengths of the first RS as measured via at least one UE beam of the set of UE beams. The UE may transmit, based at least in part on the first RS, a report including an indication of a network node beam for communication with the UE, the indication based at least in part on a signal strength of the first RS using a first UE beam of the set of UE beams. The UE may receive a second RS using the set of UE beams. The UE may identify, based at least in part on the second RS, a second UE beam of the set of UE beams, identification based at least in part on a spectral efficiency associated with the second UE beam. The UE may communicate with the network node using the second UE beam. Numerous other aspects are described.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 28, 2024
    Inventors: Jun ZHU, Mihir Vijay LAGHATE, Raghu Narayan CHALLA
  • Patent number: 11943761
    Abstract: A user equipment (UE) may make a joint decision of adaptive receive diversity (ARD) and adaptive transmit diversity (ATD) configurations, including transmit (Tx) and receive (Rx) antennas selection and/or blanking based on downlink (DL) and uplink (UL) traffic conditions. The UE may disable at least one Tx chain for a transmission of a codebook-based sounding reference signal (SRS) (SRS-CB) based on one or more of at least one DL traffic condition or at least one UL traffic condition, and transmit, to a base station, upon disabling the at least one Tx chain, the SRS-CB via an antenna associated with at least one active Tx chain.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: March 26, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Pui Lok Ang, Enoch Shiao-Kuang Lu, Alexei Yurievitch Gorokhov, Aamod Khandekar, Brian Clarke Banister, Raghu Narayan Challa, Kuo-Chun Lee, Arvind Vardarajan Santhanam, Jianming Zhu, Arash Ebadi Shahrivar, Pranay Sudeep Rungta
  • Publication number: 20240098659
    Abstract: Certain aspects of the present disclosure provide a method of wireless communications by a user equipment (UE), generally including detecting one or more synchronization signal blocks (SSBs) transmitted from a network entity, identifying a channel scattering type based on the detecting, and selecting one or more parameters for beam management, based on the identified channel scattering type.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 21, 2024
    Inventors: Jun ZHU, Mihir Vijay LAGHATE, Raghu Narayan CHALLA
  • Publication number: 20240089054
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a slot or a symbol where a channel state information reference signal (CSI-RS) for a Procedure 2 (P2) resource is to be scheduled. The UE may schedule a candidate UE beam or a serving UE beam for the slot or the symbol. The UE may measure a spectral efficiency associated with the P2 resource. The UE may prepare a report that indicates one or more characteristics of the candidate UE beam or the serving UE beam. Numerous other aspects are described.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 14, 2024
    Inventors: Jun ZHU, Alexei Yurievitch GOROKHOV, Raghu Narayan CHALLA
  • Patent number: 11930375
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a signal, transmitted by a base station, using a set of candidate beams. The UE may communicate, with the base station based at least in part on the measurement of the signal, using a first beam from the set of candidate beams. The UE may determine to switch the first beam based on a first value for a beam parameter associated with a second beam, from the set of candidate beams, satisfying a condition. The UE may measure, based at least in part on the determination to switch the first beam, the second beam to obtain a second value of the beam parameter. The UE may switch the first beam to the second beam if the second value satisfies a condition. Numerous other aspects are provided.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Zhu, Yongle Wu, Raghu Narayan Challa, Brian Clarke Banister
  • Patent number: 11930482
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a multi-subscriber identity module (SIM) user equipment (UE) may communicate, using a first SIM, on a plurality of component carriers. The multi-SIM UE may select a first subset of component carriers from the plurality of component carriers based at least in part on a component carrier prioritization. The multi-SIM UE may identify an amount of memory available to a second SIM. The multi-SIM UE may tune away, based at least in part on the amount of memory available to the second SIM, from a second subset of component carriers The first subset of component carriers may be different from the second subset of component carriers. Numerous other aspects are described.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Francis Ming-Meng Ngai, Arnaud Meylan, Suli Zhao, Liangchi Hsu, Cheol Hee Park, Qingxin Chen, Jun Hu, Leena Zacharias, Pulkit Hanswal, Reza Shahidi, Thawatt Gopal, Raghu Narayan Challa, Heechoon Lee
  • Publication number: 20240080831
    Abstract: Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) receiving a first set of multiple sets of synchronization signal block (SSB) signals from a network entity. The first set of multiple sets of SSB signals may be associated with a first antenna port of the network entity corresponding to a first polarization. Additionally, the UE may receive a second set of multiple sets of SSB signals from the network entity. The second set of multiple sets of SSB signals may be associated with a second antenna port of the network entity corresponding to a second polarization. The UE may then transmit an indication of a beam pair for communication between the UE and the network entity based at least in part on receiving the first set of multiple sets of SSB signals and the second set of multiple sets of SSB signals.
    Type: Application
    Filed: September 7, 2022
    Publication date: March 7, 2024
    Inventors: Jun Zhu, Yongle Wu, Raghu Narayan Challa
  • Publication number: 20240080781
    Abstract: Certain aspects of the present disclosure provide techniques for communicating antenna module information, beamforming capabilities, power control information, etc., for computing devices capable of operating in multiple form factor configurations. A example technique includes detecting that the UE is operating in a first form factor configuration of a plurality of form factor configurations the UE is adapted to operate in. The technique also includes, in response to the detection, transmitting information associated with at least one antenna module of the UE in the first form factor configuration.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 7, 2024
    Inventors: Vasanthan RAGHAVAN, Mohammad Ali TASSOUDJI, Junyi LI, Tao LUO, Ruhua HE, Raghu Narayan CHALLA
  • Publication number: 20240080680
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may select a set of candidate UE beams for measuring channel state information (CSI) reference signal (CSI-RS) based on one or more power measurements for uplink transmissions. The UE may measure multiple synchronization signal blocks (SSBs) using the set of candidate UE beams and select a subset of the selected candidate beams based on the SSB measurements. The UE may measure spectral efficiency via the resource carrying the CSI-RS using the subset of candidate UE beams and select a serving beam from the subset based on the spectral efficiency of each beam. The UE may calculate the power measurements based on a difference between a power threshold and a reference power value for each candidate beam.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 7, 2024
    Inventors: Jun Zhu, Raghu Narayan Challa, Brian Clarke Banister
  • Patent number: 11924819
    Abstract: Methods and systems for determining transmission power levels according to signal types and RF exposure limits. An example method generally includes determining a first transmission power for transmitting a first type of uplink (UL) signal, determining a second transmission power for transmitting a second type of UL signal based on the first transmission power, and transmitting at least one of the first UL signal according to the first transmission power or the second UL signal according to the second transmission power.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: March 5, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Mingming Cai, Junsheng Han, Raghu Narayan Challa, Tienyow Liu, Jing Lin, Jagadish Nadakuduti, Lin Lu, Farhad Meshkati
  • Patent number: 11924770
    Abstract: A UE may calculate an allocation of a transmission power for a first uplink transmission on a first uplink channel and at least one second uplink transmission on at least one second uplink channel, the transmission power being allocated in each symbol of a plurality of symbols in a slot. The UE may detect a transmission power change in the allocation of the transmission power in the slot for at least one of the first uplink transmission or the at least one second uplink transmission. The UE may determine whether to adjust the allocation of the transmission power for the at least one of the first uplink transmission or the at least one second uplink transmission to eliminate the transmission power change in the slot for the at least one of the first uplink transmission or the at least one second uplink transmission.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: March 5, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Brahim Saadi, Dinesh Kumar Devineni, Rajeev Malasani, Anoop Ramakrishna, Ruhua He, Enoch Shiao-Kuang Lu, Raghu Narayan Challa
  • Patent number: 11917461
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, while camped on a first cell associated with a first radio access technology (RAT), a power management level for a communication using a second RAT, wherein the power management level indicates an available power for the communication using the second RAT, and wherein the available power is based at least in part on an exposure rate or an absorption rate. The UE may delay a transmission of a measurement report on the first cell based at least in part on the identification of the power management level. Numerous other aspects are provided.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: February 27, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Arvind Vardarajan Santhanam, Raghu Narayan Challa, Brian Clarke Banister, Troy Curtiss, Bhupesh Manoharlal Umatt, Ramesh Chandra Chirala, Lin Lu