Patents by Inventor Rajat Sapra

Rajat Sapra 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: 10873488
    Abstract: Wireless communications systems and methods related to intra-packet rate adaptation are provided. A first wireless communication device communicates, with a second wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration. The first wireless communication device receives, from the second wireless communication device, a communication signal including a first data packet based on the intra-packet MCS switching configuration. The first data packet includes at least a first portion encoded by a first MCS and a second portion encoded by a second MCS different from the first MCS.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 22, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Tuhin Subhra Chakraborty, Rajat Sapra, Karthik Muralidhar, Hari Krishna Boddapati, Swaroop Venkatesh, Ashutosh Deepak Gore
  • Publication number: 20200235971
    Abstract: Wireless communications systems and methods related to intra-packet rate adaptation are provided. A first wireless communication device communicates, with a second wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration. The first wireless communication device receives, from the second wireless communication device, a communication signal including a first data packet based on the intra-packet MCS switching configuration. The first data packet includes at least a first portion encoded by a first MCS and a second portion encoded by a second MCS different from the first MCS.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 23, 2020
    Inventors: Tuhin Subhra Chakraborty, Rajat Sapra, Karthik Muralidhar, Hari Krishna Boddapati, Swaroop Venkatesh, Ashutosh Deepak Gore
  • Patent number: 10425272
    Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine an odd-exponent modulation constellation order for a group of bits; determine a parity bit location for the group of bits based at least in part on the odd-exponent modulation constellation order; and map the group of bits, with a parity bit in the parity bit location, to an odd-exponent modulation constellation of the odd-exponent modulation constellation order.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 24, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Tuhin Subhra Chakraborty, Ashutosh Deepak Gore, Rajat Sapra, Swaroop Venkatesh
  • Publication number: 20190028318
    Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine an odd-exponent modulation constellation order for a group of bits; determine a parity bit location for the group of bits based at least in part on the odd-exponent modulation constellation order; and map the group of bits, with a parity bit in the parity bit location, to an odd-exponent modulation constellation of the odd-exponent modulation constellation order.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Inventors: Tuhin Subhra CHAKRABORTY, Ashutosh Deepak GORE, Rajat SAPRA, Swaroop VENKATESH
  • Patent number: 9883430
    Abstract: The present disclosure describes methods and apparatus for detecting handover failures at an AP when the AP does not have an X2 interface with at least one of its neighbors. For example, methods are provided for detecting handover failures at an AP based on at least on a UE context release command message received from a mobile management entity (MME) and/or determining that a radio resource control (RRC) connection reconfiguration (RCR) message is not delivered to the UE.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 30, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Sudeepta Kumar Nath, Rajat Sapra, Sukhvinder Singh Malik, Krusna Prasad Jena, Pawan Kumar Patel, Damanjit Singh
  • Publication number: 20170353896
    Abstract: The present disclosure describes methods and apparatus for detecting handover failures at an AP when the AP does not have an X2 interface with at least one of its neighbors. For example, methods are provided for detecting handover failures at an AP based on at least on a UE context release command message received from a mobile management entity (MME) and/or determining that a radio resource control (RRC) connection reconfiguration (RCR) message is not delivered to the UE.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 7, 2017
    Inventors: Sudeepta Kumar NATH, Rajat SAPRA, Sukhvinder Singh MALIK, Krusna Prasad JENA, Pawan Kumar PATEL, Damanjit SINGH
  • Patent number: 9624482
    Abstract: The present invention provides for a composition comprising a polypeptide comprising a first amino acid sequence having at least 70% identity with the amino acid sequence of Csac GH5 wherein said first amino acid sequence has a thermostable or thermophilic cellobiohydrolase (CBH) or exoglucanase activity.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 18, 2017
    Assignee: Sandia Corporation
    Inventors: Rajat Sapra, Joshua I. Park, Supratim Datta, Blake A. Simmons
  • Patent number: 9322042
    Abstract: The present invention provides for a composition comprising an ionic liquid and a thermostable cellulose, and a method of hydrolyzing a cellulose, comprising: (a) providing a composition comprising a solution comprising an ionic liquid and a cellulose, and (b) introducing a thermostable cellulase to the solution, such that the cellulose is hydrolyzed by the cellulase. The present invention also provides for a Thermatoga maritima thermostable cellulase mutant with increased cellulase activity.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: April 26, 2016
    Assignees: The Regents of the University of California, Sandia Corporation
    Inventors: Rajat Sapra, Supratim Datta, Zhiwei Chen, Bradley M. Holmes, Blake A. Simmons, Harvey W. Blanch
  • Publication number: 20120129227
    Abstract: The present invention provides for a composition comprising an ionic liquid and a thermostable cellulose, and a method of hydrolyzing a cellulose, comprising: (a) providing a composition comprising a solution comprising an ionic liquid and a cellulose, and (b) introducing a thermostable cellulase to the solution, such that the cellulose is hydrolyzed by the cellulase. The present invention also provides for a Thermatoga maritima thermostable cellulase mutant with increased cellulase activity.
    Type: Application
    Filed: April 23, 2010
    Publication date: May 24, 2012
    Applicants: Sandia Corporation, The Regents of the University of California
    Inventors: Rajat Sapra, Supratim Datta, Zhiwei Chen, Bradley M. Holmes, Blake A. Simmons, Harvey W. Blanch
  • Publication number: 20110207182
    Abstract: The present invention provides for a composition comprising a polypeptide comprising a first amino acid sequence having at least 70% identity with the amino acid sequence of Csac GH5 wherein said first amino acid sequence has a thermostable or thermophilic cellobiohydrolase (CBH) or exoglucanase activity.
    Type: Application
    Filed: September 28, 2010
    Publication date: August 25, 2011
    Applicant: SANDIA CORPORATION
    Inventors: Rajat Sapra, Joshua I. Park, Supratim Datta, Blake A. Simmons