Patents by Inventor Srinivasan Rajagopalan

Srinivasan Rajagopalan 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: 9179364
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is a UE. The UE transmits data packets. The UE determines to implement a flow control to reduce a transmission rate of the data packets. The UE determines whether the data packets include known or potential real-time data packets. The UE refrains from implementing the flow control to reduce the transmission rate of the known/potential real-time data packets when the data packets include known/potential real-time data packets.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanth Kumar Ramkumar, Navid Ehsan, Praveen N Kona, Srinivasan Rajagopalan, Bao Vinh Nguyen
  • Publication number: 20150296391
    Abstract: Techniques for optimized cell acquisition for long term evolution (LTE) time division duplex (TDD) systems or closed subscriber group (CSG)/evolved Multicast Broadcast Multimedia Service (eMBMS) capable user equipments (UEs) are disclosed. A UE obtains configuration information, CSG capability information, and/or eMBMS capability information for a cell. The UE also stores the obtained information for the cell in a cell information database. In some aspects, the UE may employ the CSG and/or eMBMS capability information to select a weaker cell, during initial frequency scan at power up of the UE, based on cell capability. Additionally or alternatively, the UE may employ the configuration information to determine an initial mutual information (Mi) hypothesis value for physical hybrid-automatic repeat request (HART) indicator channel (PHICH) group mapping of the cell.
    Type: Application
    Filed: April 13, 2015
    Publication date: October 15, 2015
    Inventors: Pratik Kotkar, Alexei Yurievitch Gorokhov, Sachin Saraswat, Ning Yin, Srinivasan Rajagopalan, Muralidharan Murugan, Santosh Kumar Rongala
  • Patent number: 9148236
    Abstract: Techniques for optimized HARQ recombining are provided. In one exemplary embodiment, a method for wireless communication comprises receiving a broadcast message to determine a timing of a transmission window, receiving at least one transmission within the transmission window, and determining whether the at least one transmission is successfully decoded. The method further comprises instructing a lower protocol layer to ignore remaining transmissions within the transmission window upon a determination that the at least one transmission is successfully decoded, wherein the remaining transmissions and the at least one transmission comprise duplicate copies of a message segment.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 29, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanth Kumar Ramkumar, Muralidharan Murugan, Pratik Kotkar, Aparna S. Ghorpade, Srinivasan Rajagopalan
  • Patent number: 9131441
    Abstract: Disclosed are methods and apparatus for performing a better PLMN (BPLMN) search during connected mode DRX. In one aspect, a user equipment (UE) detects a trigger to begin a BPLMN search while in connected mode discontinuous reception (CDRX); determines whether it is configured for a manual BPLMN search; determine whether the CDRX duration is greater than or equal to the minimum amount of time required to perform the manual BPLMN search; and when determined that the CDRX duration is greater than or equal to the minimum amount of time required for the BPLMN search, performs the manual BPLMN search while in the CDRX.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 8, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Vaibhav Singhal, Praveen N. Kona, Srinivasan Rajagopalan
  • Patent number: 9094904
    Abstract: A method for wireless communication is disclosed. A time alignment timer is started. It is determined when the time alignment timer will expire. A time alignment request subframe that is prior to the time alignment timer expiring is identified. Uplink time alignment is requested in the time alignment request subframe.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: July 28, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanth Kumar Ramkumar, Srinivasan Rajagopalan, Bao Vinh Nguyen, Deepak Krishnamoorthi
  • Publication number: 20150163741
    Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for a user equipment (UE) to delay RLC retransmissions (e.g., during off-durations, including CDRX off-durations). According to aspects of the present disclosure, a UE may delay triggering an RLC retransmission of an RLC PDU until after a next opportunity for the UE to receive an RLC ACK of the RLC PDU. By delaying RLC retransmissions, a UE may be prevented from waking up from one or more CDRX off-durations and using power associated with waking up from the one or more CDRX off-durations.
    Type: Application
    Filed: November 24, 2014
    Publication date: June 11, 2015
    Inventors: Amisha SHETH, Vasanth Kumar RAMKUMAR, Srinivasan RAJAGOPALAN, Gang Andy XIAO, Deepak KRISHNAMOORTHI
  • Publication number: 20150132539
    Abstract: A coated device comprising a body, a coating on at least a portion of a surface of the body, wherein the coating comprises, a terminal layer, and at least one underlayer positioned between the terminal layer and the body, the underlayer comprising a hardness of greater than 61 HRc, wherein prior to the addition of the terminal layer, at least one of the body and the underlayer is polished to a surface roughness of less than or equal to 1.0 micrometer Ra.
    Type: Application
    Filed: August 28, 2014
    Publication date: May 14, 2015
    Inventors: Jeffrey R. Bailey, Srinivasan Rajagopalan, Mehmet Deniz Ertas, Adnan Ozekcin, Bo Zhao
  • Publication number: 20150131461
    Abstract: Methods, systems, and devices are described for managing power of a user equipment (UE). A UE modem may determine the state of charge of the battery to determine that the battery is in one of two or more charge state levels, and may invoke one or more modem power saving modes based on the charge state level. Power saving modes may include, for example, reducing a number of available receive chains in a UE, initiating a time delay between one or more frequency scan requests performed by the UE, reducing a rate of neighbor search requests performed by the UE, providing a buffer status report (BSR) parameter that indicates a reduced amount of buffer data relative to an actual amount of buffer data for the UE, and/or adjusting a maximum transmit power level for an uplink channel.
    Type: Application
    Filed: March 17, 2014
    Publication date: May 14, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Vasanth Kumar Ramkumar, Srinivasan Rajagopalan, Jeffrey A. Niemann, Vijay Raman, Christopher Lee Medrano, Jon James Anderson, Amit Mahajan
  • Publication number: 20150098341
    Abstract: Certain aspects of the present disclosure provide techniques for defending against false semi-persistent scheduling (SPS) activation detection and/or missed SPS release. According to certain aspects, a user equipment (UE) may detect one or more conditions for a semi-persistent scheduling (SPS) activation or release are met based on a downlink transmission, generate one or more metrics related to downlink transmission, and determine a valid SPS activation or release has occurred if the one or more metrics satisfy one or more criteria. According to certain aspects, a UE may determine a valid semi-persistent scheduling (SPS) activation has occurred, detect a number of PDSCH CRC failures, and implicitly declare an SPS release based on the detection.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 9, 2015
    Inventors: Vasanth Kumar RAMKUMAR, Dominique Francois BRESSANELLI, Brandon Allen BURDGE, Deepak KRISHNAMOORTHI, Kevin Shaokwan WANG, Srinivasan RAJAGOPALAN
  • Publication number: 20150097431
    Abstract: An integrated circuit (IC) can include multiple power domains that are served by a common power source. In an example, a first IC power rail can be coupled to the source and a first consumer circuit. A second IC power rail can be coupled to a second consumer circuit. The second IC power rail can receive a filtered power signal from an isolation module that is coupled between the first and second power rails. In an example, an isolation module includes an integrated inductor and a capacitor (e.g., a land-side capacitor). The integrated inductor can optionally include multiple spaced apart conductive layers that are electrically coupled. The integrated inductor can optionally include a series of conductive traces and plated through holes or vias that together provide a current path with multiple turns.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Inventors: Fern Nee Tan, Sanjiv Soman, Alexander Levin, Srinivasan Rajagopalan
  • Publication number: 20150094003
    Abstract: A method for antenna switching is described. The method includes transmitting using a first antenna. The method also includes determining that a trigger occurs to switch to transmitting using a second antenna. The trigger is based on a combination of a physical uplink shared channel (PUSCH) maximum transmit power level (MTPL) counter and a physical uplink control channel (PUCCH) MTPL counter. The method further includes switching to transmitting using the second antenna based on the determination.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Vasanth Kumar Ramkumar, Srinivasan Rajagopalan, Sagar Kakade, Deepak Krishnamoorthi, Hongbo Yan
  • Publication number: 20150011548
    Abstract: A compound of formula (I), wherein R3, R4, G, B, M, and Z are as defined in the claims, and pharmaceutically acceptable salts thereof are disclosed. The compounds of formula (I) possess utility as FGFR inhibitors and are useful in the treatment of a condition, where FGFR kinase inhibition is desired, such as cancer.
    Type: Application
    Filed: October 9, 2012
    Publication date: January 8, 2015
    Inventors: Tero Linnanen, Gerd Wohlfahrt, Srinivas Nanduri, Ravi Ujjinamatada, Srinivasan Rajagopalan, Subhendu Mukherjee
  • Publication number: 20150004981
    Abstract: Methods, systems, and devices are described for recovery from a connection disruption of a user equipment (UE) operating in a multi-carrier mode. The UE may establish a first connection with a primary cell and a second connection with a secondary cell while operating in the multi-carrier mode. A determination may be made that a disruption in the connection with the primary cell has occurred, and the UE may perform a connection reestablishment procedure to attempt to reestablish communications. The connection reestablishment routine may prioritize the secondary cell ahead of one or more other cells for attempting to reestablish communications. The prioritization may be based at least in part on the establishment of the second connection in the multi-carrier mode.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Inventors: Ashish Shankar Iyer, Srinivasan Rajagopalan, Daniel Amerga, Srivatsa Venkata Chivukula, Kiran Patil
  • Publication number: 20140287161
    Abstract: Provided are methods and systems for vacuum coating the outside surface of tubular devices for use in oil and gas exploration, drilling, completions, and production operations for friction reduction, erosion reduction and corrosion protection. These methods include embodiments for sealing tubular devices within a vacuum chamber such that the entire device is not contained within the chamber. These methods also include embodiments for surface treating of tubular devices prior to coating. In addition, these methods include embodiments for vacuum coating of tubular devices using a multitude of devices, a multitude of vacuum chambers and various coating source configurations.
    Type: Application
    Filed: October 3, 2012
    Publication date: September 25, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Mehmet D. Ertas, Michael B. Ray, Srinivasan Rajagopalan, Bo Zhao, Erika A. Ooten Biediger
  • Publication number: 20140274038
    Abstract: Disclosed are methods and apparatus for performing a better PLMN (BPLMN) search during connected mode DRX. In one aspect, a user equipment (UE) detects a trigger to begin a BPLMN search while in connected mode discontinuous reception (CDRX); determines whether it is configured for a manual BPLMN search; determine whether the CDRX duration is greater than or equal to the minimum amount of time required to perform the manual BPLMN search; and when determined that the CDRX duration is greater than or equal to the minimum amount of time required for the BPLMN search, performs the manual BPLMN search while in the CDRX.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Vaibhav SINGHAL, Praveen N. KONA, Srinivasan RAJAGOPALAN
  • Publication number: 20140250456
    Abstract: Various aspects of the present disclosure for wireless communication may intelligently present a concurrent communication session to a user while the user's user equipment (UE) is streaming and/or presenting an original communication session. Example aspects may receive streaming communication content at a mobile device during an active communication session, present the streaming communication content at the mobile device, receive a concurrent service indication at the mobile device during the active communication session, and the concurrent service (or notification thereof) at the mobile device while concurrently streaming the communication content.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Vasanth Kumar Ramkumar, Srinivasan Rajagopalan, Praveen N. Kona, Pratik Kotkar, Ashish S. Iyer
  • Publication number: 20140184608
    Abstract: Computer-aided methods and computer-based systems designed to elicit information from imaging data of a volume of in vivo tissue to facilitate clinical determinations and/or pathological evaluation.
    Type: Application
    Filed: May 7, 2012
    Publication date: July 3, 2014
    Inventors: Richard A. Robb, Srinivasan Rajagopalan, Ronald A. Karwoski, Brian J. Bartholmai
  • Publication number: 20140173995
    Abstract: Provided are methods to make a drilling tool with low friction coatings to reduce balling and friction. In one form, the method includes providing one or more drilling tool components with specified locations for fitting cutters, inserts, bearings, rollers, additional non-coated components, or combinations thereof; cleaning the one or more drilling tool components; applying masking for fitting cutters, inserts, bearings, rollers, additional non-coated components or combinations thereof; applying a multi-layer low friction coating to the cleaned specified locations; removing the masking from the cleaned and coated specified locations of the one or more drilling components; inserting cutters and inserts and assembling moving parts to the cleaned and coated specified locations of the one or more drilling tool components; and assembling the one or more drilling tool components to form a drilling tool.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Jeffrey Roberts Bailey, Srinivasan Rajagopalan, Tabassumul Haque, Adnan Ozekcin, Mehmet Deniz Ertas, HyunWoo Jin, Bo Zhao, Russell Robert Mueller
  • Publication number: 20140178637
    Abstract: Provided are low friction coatings with improved abrasion, wear resistance and methods of making such coatings. In one form, the coating includes: i) an under layer selected from the group consisting of CrN, TiN, TiAlN, TiAlVN, TiAlVCN, TiSiN, TiSiCN, TiAlSiN and combinations thereof, wherein the under layer ranges in thickness from 0.1 to 100 ?m, ii) an adhesion promoting layer selected from the group consisting of Cr, Ti, Si, W, CrC, TiC, SiC, WC, and combinations thereof, wherein the adhesion promoting layer ranges in thickness from 0.1 to 50 ?m and is contiguous with a surface of the under layer, and iii) a functional layer selected from the group consisting of a fullerene based composite, a diamond based material, diamond-like-carbon and combinations thereof, wherein the functional layer ranges from 0.1 to 50 ?m and is contiguous with a surface of the adhesion promoting layer.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Srinivasan Rajagopalan, Tabassumul Haque, Mehmet Deniz Ertas, Adnan Ozekcin, HyunWoo Jin, Bo Zhao
  • Publication number: 20140119247
    Abstract: A method for wireless communication is disclosed. A time alignment timer is started. It is determined when the time alignment timer will expire. A time alignment request subframe that is prior to the time alignment timer expiring is identified. Uplink time alignment is requested in the time alignment request subframe.
    Type: Application
    Filed: March 11, 2013
    Publication date: May 1, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Vasanth Kumar Ramkumar, Srinivasan Rajagopalan, Bao Vinh Nguyen, Deepak Krishnamoorthi