Patents by Inventor Tejas M. Bhatt

Tejas M. Bhatt 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: 10554469
    Abstract: Methods and apparatus for frequency offset estimation are disclosed. In an exemplary embodiment, a method includes determining a demodulation reference signal (DMRS) frequency offset estimate from DMRS symbols in a received signal, and determining a cyclic prefix (CP) frequency offset estimate from cyclic prefix values in the received signal. The method also includes combining the DMRS and CP frequency offset estimates to determine a final frequency offset estimate. In an exemplary embodiment, an apparatus includes a DMRS frequency offset estimator that determines a DMRS frequency offset estimate based on DMRS symbols received in an uplink transmission, and a cyclic prefix (CP) frequency offset estimator that determines a CP frequency offset estimate based on cyclic prefix values in the uplink transmission. The apparatus also includes an offset combiner that combines the DMRS frequency offset estimate with the CP frequency offset estimate to generate a final frequency offset estimate.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: February 4, 2020
    Assignee: Cavium, LLC.
    Inventors: Hyun Soo Cheon, Hong Jik Kim, Tejas M. Bhatt
  • Patent number: 10496329
    Abstract: Methods and apparatus for a unified baseband architecture. In an exemplary embodiment, an apparatus includes a shared memory having a plurality of access ports and a scheduler that outputs scheduled jobs. Each scheduled job identifies data processing to be performed. The apparatus also includes a plurality of functional elements coupled to the plurality of access ports, respectively, to access the shared memory. Each functional element is operable to retrieve selected data from the shared memory, process the selected data to generate processed data, and store the processed data into the shared memory based on a received scheduled job.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: December 3, 2019
    Assignee: Cavium, LLC
    Inventors: Tejas M. Bhatt, Gregg A. Bouchard, Hong Jik Kim, Jason D. Zebchuk, Ahmed Shahid
  • Publication number: 20190215218
    Abstract: Methods and apparatus for frequency offset estimation are disclosed. In an exemplary embodiment, a method includes determining a demodulation reference signal (DMRS) frequency offset estimate from DMRS symbols in a received signal, and determining a cyclic prefix (CP) frequency offset estimate from cyclic prefix values in the received signal. The method also includes combining the DMRS and CP frequency offset estimates to determine a final frequency offset estimate. In an exemplary embodiment, an apparatus includes a DMRS frequency offset estimator that determines a DMRS frequency offset estimate based on DMRS symbols received in an uplink transmission, and a cyclic prefix (CP) frequency offset estimator that determines a CP frequency offset estimate based on cyclic prefix values in the uplink transmission. The apparatus also includes an offset combiner that combines the DMRS frequency offset estimate with the CP frequency offset estimate to generate a final frequency offset estimate.
    Type: Application
    Filed: December 31, 2018
    Publication date: July 11, 2019
    Applicant: Cavium, LLC
    Inventors: Hyun Soo Cheon, Hong Jik Kim, Tejas M. Bhatt
  • Patent number: 10171278
    Abstract: Methods and apparatus for frequency offset estimation are disclosed. In an exemplary embodiment, a method includes determining a demodulation reference signal (DMRS) frequency offset estimate from DMRS symbols in a received signal, and determining a cyclic prefix (CP) frequency offset estimate from cyclic prefix values in the received signal. The method also includes combining the DMRS and CP frequency offset estimates to determine a final frequency offset estimate. In an exemplary embodiment, an apparatus includes a DMRS frequency offset estimator that determines a DMRS frequency offset estimate based on DMRS symbols received in an uplink transmission, and a cyclic prefix (CP) frequency offset estimator that determines a CP frequency offset estimate based on cyclic prefix values in the uplink transmission. The apparatus also includes an offset combiner that combines the DMRS frequency offset estimate with the CP frequency offset estimate to generate a final frequency offset estimate.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 1, 2019
    Assignee: CAVIUM, LLC
    Inventors: Hyun Soo Cheon, Hong Jik Kim, Tejas M. Bhatt
  • Publication number: 20180352557
    Abstract: Methods and apparatus for a unified baseband architecture. In an exemplary embodiment, an apparatus includes a shared memory having a plurality of access ports and a scheduler that outputs scheduled jobs. Each scheduled job identifies data processing to be performed. The apparatus also includes a plurality of functional elements coupled to the plurality of access ports, respectively, to access the shared memory. Each functional element is operable to retrieve selected data from the shared memory, process the selected data to generate processed data, and store the processed data into the shared memory based on a received scheduled job.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 6, 2018
    Applicant: Cavium, Inc.
    Inventors: Tejas M. Bhatt, Gregg A. Bouchard, Hong Jik Kim, Jason D. Zebchuk, Ahmed Shahid
  • Publication number: 20170331664
    Abstract: Methods and apparatus for frequency offset estimation are disclosed. In an exemplary embodiment, a method includes determining a demodulation reference signal (DMRS) frequency offset estimate from DMRS symbols in a received signal, and determining a cyclic prefix (CP) frequency offset estimate from cyclic prefix values in the received signal. The method also includes combining the DMRS and CP frequency offset estimates to determine a final frequency offset estimate. In an exemplary embodiment, an apparatus includes a DMRS frequency offset estimator that determines a DMRS frequency offset estimate based on DMRS symbols received in an uplink transmission, and a cyclic prefix (CP) frequency offset estimator that determines a CP frequency offset estimate based on cyclic prefix values in the uplink transmission. The apparatus also includes an offset combiner that combines the DMRS frequency offset estimate with the CP frequency offset estimate to generate a final frequency offset estimate.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 16, 2017
    Applicant: Cavium, Inc.
    Inventors: Hyun Soo Cheon, Hong Jik Kim, Tejas M. Bhatt