Patents by Inventor Raghu Narayan Challa

Raghu Narayan Challa 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).

  • Publication number: 20250038827
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may measure a signal strength for each beam of a set of multiple beams. The UE may select, from the set of multiple beams, a set of two or more beams each having a respective signal strength satisfying a threshold. The UE may attempt to decode a first broadcast channel signal of a first beam of the set of two or more beams in a single broadcast channel period. The UE may decode, after failing to decode the first broadcast channel signal of the first beam, a second broadcast channel signal of a second beam of the set of two or more beams in the single broadcast channel period.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 30, 2025
    Inventors: Ruhua HE, Kang GAO, Raghu Narayan CHALLA
  • Patent number: 12212388
    Abstract: Example implementations include a method, apparatus and computer-readable medium for wireless communication configured for estimating a channel using a set of predefined sensing beams to measure reference signals. Estimating the channel may include generating an N×N channel correlation matrix, where N is a number of antenna elements in the antenna array. The implementations further include generating a set of dynamic beam weights to maximize a reference signal received power (RSRP) based on the estimated channel. The set of dynamic beam weights may be based on an eigenvector of the channel correlation matrix. Additionally, the implementations further include applying the set of dynamic beam weights to an antenna array.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: January 28, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Kang Gao, Vasanthan Raghavan, Yongle Wu, Jun Zhu, Raghu Narayan Challa
  • Patent number: 12212386
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a monitoring signal associated with one or more antennas. The UE may identify, based at least in part on the monitoring signal, a blockage associated with the one or more antennas. The UE may perform a beam search using a decreased frequency of occurrence of tracking occasions for the one or more antennas based at least in part on the identification of the blockage associated with the one or more antennas. Numerous other aspects are provided.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: January 28, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Zhu, Mihir Vijay Laghate, Raghu Narayan Challa
  • Patent number: 12213018
    Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit a reference signal to a user equipment (UE). The UE may measure, during a first time period and according to a first periodicity, the reference signal using a first beam associated with cell search. The UE may determine that a movement of the UE satisfies a movement threshold value based on an indication from a motion sensor. Additionally, the UE may determine that a channel metric fails to satisfy a threshold. In response, the UE may measure, during a second time period, the reference signal using the first beam according to a second periodicity that is greater than the first periodicity and corresponds to a more frequent measurement of the reference signal using the first beam than the first periodicity.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: January 28, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Zhu, Mihir Vijay Laghate, Raghu Narayan Challa
  • Publication number: 20250030467
    Abstract: Aspects of the disclosure are directed to generation of N-port dynamic beams. For example, a user equipment (UE) may be using a 2-port predefined receive beam for communication with a wireless node. The UE may estimate a channel using the predefined receive beam to measure a rank2 reference signal received from the wireless node. The UE may generate a dynamic beam weight to maximize a communication parameter based on the estimated channel. The UE may then apply the dynamic beam weight to an antenna array.
    Type: Application
    Filed: July 17, 2023
    Publication date: January 23, 2025
    Inventors: Kang GAO, Yongle WU, Jun ZHU, Vasanthan RAGHAVAN, Derrick Albert CHU, Raghu Narayan CHALLA
  • Patent number: 12207243
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to select a set of beams to generate energy in a first coverage region (e.g., an out-of-coverage (OOC) region) to reduce the effects of a distorted electric field. The UE may select the set of beams based on gain parameters associated with a set of antennas at the UE, where the gain parameters are determined for communications in a second coverage region (e.g., an in-coverage (INC) region). In some examples, the UE may use iterative techniques to select the beams. In some examples, the UE may select the set of beams based on calculations using a set of codebook beams associated with the second coverage region. In some examples, the UE may additionally select the set of beams for communications in the second coverage region.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: January 21, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Amodh Kant Saxena, Mihir Vijay Laghate, Raghu Narayan Challa, Brian Clarke Banister
  • Publication number: 20250024336
    Abstract: Certain aspects of the present disclosure provide techniques for cell measurement scheduling mode selection. According to certain aspects, a method for wireless communications by a user equipment (UE), generally includes selecting a first scheduling mode for performing cell measurements while the UE is in an idle state, in response to detecting at least one first triggering condition based on a comparison of a serving cell measurement to one or more neighbor cell measurements and performing cell measurements in accordance with the first scheduling mode, wherein the UE performs cell measurement more frequently when the first scheduling mode is selected than when a second scheduling mode is selected.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Inventors: Yongle WU, Alexei Yurievitch GOROKHOV, Raghu Narayan CHALLA
  • Patent number: 12200609
    Abstract: Aspects of the present disclosure provide a method for wireless communication at a user equipment (UE). The method includes selecting, for each of a plurality of periodic search opportunities, one receive beam of a plurality of receive beams for receiving at least one synchronization signal. The plurality of periodic search opportunities includes a plurality of regular search opportunities and a plurality of prioritized search opportunities. The plurality of receive beams includes at least one prioritized receive beam and at least one additional receive beam. The selecting includes selecting from the at least one prioritized receive beam for each of the plurality of prioritized search opportunities; and selecting from the plurality of receive beams for each of the plurality of regular search opportunities. The method further includes receiving, at each of the plurality of periodic search opportunities, the corresponding at least one synchronization signal using the corresponding selected receive beam.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: January 14, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Zhu, Mihir Vijay Laghate, Raghu Narayan Challa
  • Patent number: 12192812
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit or receive a reference signal to or from a base station using a beam pair including a first beam associated with a first polarization and a second beam associated with a second polarization. The UE may select the first beam from a first set of beams associated with the first polarization and may independently select the second beam from a second set of beams associated with the second polarization. In some examples, the UE may select the first beam and the second beam based on the first beam and the second beam each having a greatest beam strength (at the UE or the base station) relative to a remainder of the first set of beams and the second set of beams, respectively.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: January 7, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Zhu, Mihir Vijay Laghate, Raghu Narayan Challa
  • Patent number: 12193048
    Abstract: Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) identifying a priority scheme for a set of signals including a first set of synchronization signal block (SSB) signals associated with a first frequency range, a second set of SSB signals associated with a second frequency range, and a paging signal associated with the first frequency range. The UE may then monitor, via a narrowband processor of the UE and based on the priority scheme, a set of time resources for one or more of the first set of SSB signals, the second set of SSB signals, or the paging signal. The narrowband processor may be configured to process signals received via the first frequency range and the second frequency range.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: January 7, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Kang Gao, Jun Zhu, Yong Li, Arvind Vardarajan Santhanam, Jun Hu, Heechoon Lee, Raghu Narayan Challa
  • Publication number: 20240430811
    Abstract: Methods, systems, and devices for wireless communications are described that support techniques for transmission power determination for radio frequency (RF) exposure compliance. A transmitting device, such as a user equipment (UE) may determine an uplink transmit power limit for a time window based on an RF limit and a duration of the time window. The device may use the power limit to determine an uplink transmit power based on a computed uplink transmission period for the time window that accounts for a time period during which the device is expected to actually transmit. The computed uplink transmission period may be based on one or more actual uplink transmission periods during one or more prior time windows, a predictive model, network signaling, or any combinations thereof. The device may transmit one or more uplink transmissions during the time window using the determined uplink transmit power.
    Type: Application
    Filed: September 4, 2024
    Publication date: December 26, 2024
    Inventors: Farhad MESHKATI, Raghu Narayan CHALLA, Tienyow LIU
  • Patent number: 12176970
    Abstract: Systems and methods providing antenna element feed path component management for facilitating millimeter wave communication are described. Embodiments can enable and provide mitigation of thermal, power consumption, and/or maximum permissible exposure issues with respect to millimeter wave communication, such as by 5th generation (5G) or new radio (NR) compliant user equipment. Accordingly, embodiments are configured to manage transceiver antenna element feed path components to mitigate thermal, power consumption, and/or MPE concerns. For example, a communication device configured in accordance with concepts herein may reduce or otherwise control temperatures of various components, device power consumption, and/or user exposure to millimeter wave energy, such as to improve user experience, avoid component failure, extend battery life, etc.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: December 24, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: James Francis Geekie, Raghu Narayan Challa, Ruhua He, Mihir Vijay Laghate
  • Patent number: 12170559
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify, based at least in part on a scaling factor, one or more phase weights associated with a transmit beam of the wireless communication device. The scaling factor is associated with a frequency in a frequency band associated with the wireless communication device. The wireless communication device may generate, based at least in part on the one or more phase weights, the transmit beam. The wireless communication device may transmit a wireless communication using the transmit beam. Numerous other aspects are described.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: December 17, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Surendra Kompala, Sachin Jain, Mihir Vijay Laghate, Isan Doshi, Raghu Narayan Challa
  • Publication number: 20240414516
    Abstract: Aspects are provided which allow a UE to apply new radio high-speed train mode determination and false alarm suppression in HST deployments. The UE combines a plurality of indications associated with a high-speed train (HST) mode detection into a consolidated HST mode configuration signal. The UE determines whether to suppress the consolidated HST mode configuration signal based on a mobility metric of the UE and a plurality of thresholds. The UE transitions into a HST mode when the consolidated HST mode configuration signal is not suppressed based on the mobility metric of the UE exceeding at least one of the plurality of thresholds. As a result, false HST mode flags may be avoided and HST mode detection success rates may thereby be improved.
    Type: Application
    Filed: December 10, 2021
    Publication date: December 12, 2024
    Inventors: Yongle WU, Jiaheng LIU, Shanshan WANG, Nanrun WU, Ashok MANTRAVADI, Raghu Narayan CHALLA
  • Publication number: 20240405844
    Abstract: Method and apparatus for a beam panic design. The apparatus measures at least one subset of beams of a set of beams received from a network entity. The apparatus monitors for a change within a subset of the measured beams having a highest signal quality. The apparatus measures a rate of the change of the subset of the measured beams having the highest signal quality, in response to detection of an occurrence of the change of the subset of the measured beams having the highest signal quality.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 5, 2024
    Inventors: Kang GAO, Jun ZHU, Mihir Vijay LAGHATE, Raghu Narayan CHALLA
  • Publication number: 20240396598
    Abstract: Example implementations include a method, apparatus and computer-readable medium for wireless communication configured for estimating a channel using a set of predefined sensing beams to measure reference signals. Estimating the channel may include generating an N×N channel correlation matrix, where N is a number of antenna elements in the antenna array. The implementations further include generating a set of dynamic beam weights to maximize a reference signal received power (RSRP) based on the estimated channel. The set of dynamic beam weights may be based on an eigenvector of the channel correlation matrix. Additionally, the implementations further include applying the set of dynamic beam weights to an antenna array.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 28, 2024
    Inventors: Kang GAO, Vasanthan Raghavan, Yongle Wu, Jun Zhu, Raghu Narayan Challa
  • Patent number: 12149996
    Abstract: Certain aspects of the present disclosure provide techniques for cell measurement scheduling mode selection. According to certain aspects, a method for wireless communications by a user equipment (UE), generally includes selecting a first scheduling mode for performing cell measurements while the UE is in an idle state, in response to detecting at least one first triggering condition based on a comparison of a serving cell measurement to one or more neighbor cell measurements and performing cell measurements in accordance with the first scheduling mode, wherein the UE performs cell measurement more frequently when the first scheduling mode is selected than when a second scheduling mode is selected.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: November 19, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yongle Wu, Alexei Yurievitch Gorokhov, Raghu Narayan Challa
  • Patent number: 12150106
    Abstract: A UE may be configured to select narrower or wider beams that may be suitable for use with a current UE mobility, scattering environment, etc. The UE may track changes to an identified beam of a certain width, and so may recover from tracking or other radio link failures by switching to a beam that is spatially adjacent or to a beam of a different width. The UE may identify a first beam associated with a first beam width based on at least one reference signal received by the UE. The UE may further determine a set of beams based on the first beam width that is associated with the identified first beam, and the determined set of beams may include at least one beam corresponding to the first beam width. The UE may further measure respective channel qualities associated with each beam of the determined set of beams.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: November 19, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Mihir Vijay Laghate, Raghu Narayan Challa, Jun Zhu, Mingming Cai, Yong Li, Ruhua He
  • Publication number: 20240380478
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, for each of one or more candidate beams in a set of candidate beams, a downlink throughput, an uplink throughput, a downlink power consumption, and an uplink power consumption. The UE may select a beam based at least in part on: at least one of the downlink throughput or the uplink throughput, at least one of the downlink power consumption or the uplink power consumption, and one or more throughput thresholds. The UE may communicate using the selected beam. Numerous other aspects are described.
    Type: Application
    Filed: December 14, 2023
    Publication date: November 14, 2024
    Inventors: Jun Zhu, Mihir Vijay Laghate, Raghu Narayan Challa, Brian Clarke Banister
  • Publication number: 20240380470
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, for a UE beam refinement procedure, a reference signal via a first network node beam. The UE may receive, based at least in part on the UE beam refinement procedure, an indication of a switch to the first network node beam from a second network node beam. Numerous other aspects are described.
    Type: Application
    Filed: December 28, 2023
    Publication date: November 14, 2024
    Inventors: Ruhua HE, Derrick Albert CHU, Raghu Narayan CHALLA