Patents by Inventor Ramchandran Srinivasan

Ramchandran Srinivasan 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: 10165473
    Abstract: Examples described herein relate to managing communications for a first subscription and a second subscription of a wireless communication device, including, but not limited to, determining collision between activities of the first subscription over a first RAT and activities of the second subscription over a second RAT and reselecting from the second RAT to a third RAT for the second subscription.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: December 25, 2018
    Assignee: Qualcomm Incorporated
    Inventors: Vijay Marwah, Kuo-Chun Lee, Srinivasan Rajagopalan, Ramchandran Srinivasan, Anand Chowdhary Kolluri, Anindya Majumder
  • Patent number: 9999024
    Abstract: Embodiments include methods implemented by a processor of a mobile communication device for managing tune-aways by a radio frequency resource supporting a first subscription to support a second subscription. The processor may determine a data loss ratio of the data of a media file that is lost in transmission to the mobile communication device. The processor may compare the data loss ratio of the data to a first data loss ratio threshold and a second data loss ratio threshold, and the processor may block a tune-away event of the radio frequency resource from the first subscription to the second subscription in response to determining that the data loss ratio of the data is greater than the first data loss ratio threshold and less than the second data loss ratio threshold.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: June 12, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Jack Shyh-Hurng Shauh, Sivaramakrishna Veerepalli, Shailesh Maheshwari, Daniel Amerga, Kuo-Chun Lee, Mohan Krishna Gowda, Ralph Akram Gholmieh, Nagaraju Naik, Nermeen Ahmed Bassiouny, Thadi Manjunath Nagaraj, Amit Mahajan, Reza Shahidi, Pavan Kaivaram, Ramchandran Srinivasan, Alexey Semjonovs, Adrian Prentice, Marc Azar, Srinivasan Rajagopalan
  • Publication number: 20170353893
    Abstract: Examples described herein relate to managing communications for a first subscription and a second subscription of a wireless communication device, including, but not limited to, determining collision between activities of the first subscription over a first RAT and activities of the second subscription over a second RAT and reselecting from the second RAT to a third RAT for the second subscription.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 7, 2017
    Inventors: Vijay Marwah, Kuo-Chun Lee, Srinivasan Rajagopalan, Ramchandran Srinivasan, Anand Chowdhary Kolluri, Anindya Majumder
  • Publication number: 20170295513
    Abstract: Embodiments include systems and methods for managing access to receive chains of a multi-subscription multi-standby (MSMS) communication device. A device processor may determine a receive mode of the MSMS communication device. In response to determining that the receive mode is a diversity sharing mode, the device processor may determine a first subscription schedule and a second subscription schedule. The device processor may that there is an upcoming overlap between the first subscription schedule and the second subscription schedule, and in response the device processor may prevent the second subscription from using the second receive chain.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 12, 2017
    Inventors: Kuo-Chun Lee, Sivaramakrishna Veerepalli, Chih-Ping Hsu, Jack Shyh-Hurng Shauh, Shailesh Maheshwari, Mohan Krishna Gowda, Alexey Semjonovs, Omar Sabbarini, Daniel Amerga, Shishir Ramesha, Pavan Chaithanya Kiavaram, Ramchandran Srinivasan
  • Patent number: 9787430
    Abstract: Dynamic forward error correction (FEC) setting is discussed in which the network determines a FEC percentage for each video segment of a video streaming service, based on consideration of the transfer length of the video segment and the allocated bandwidth. When the transfer length and allocated bandwidth reflect transmission of less than peak bandwidth, the network will determine a higher FEC percentage that uses the otherwise wasted bandwidth to transmit additional redundancy symbols. The additional redundancy symbols increase the error recovery rate when collisions occur between streaming video reception and page monitoring occasions of other networks in multi-network, multi-subscriber identification module (SIM) mobile devices. A network entity may then transmit the dynamic FEC percentage for each video segment in the file description table (FDT) associated with the video streaming service.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 10, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Kuo-Chun Lee, Sivaramakrishna Veerepalli, Jack Shyh-hurng Shauh, Shailesh Maheshwari, Mohan Krishna Gowda, Ralph Akram Gholmieh, Nermeen Ahmed Bassiouny, Pavan Chaithanya Kaivaram, Ramchandran Srinivasan
  • Patent number: 9755783
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE determines a failure to receive an MSI for a first MSP. The UE attempts to decode one or more subframes in the first MSP. The UE detects an occurrence of an MSP abort decoding event. The UE determines that the first MSP does not include any subframe that carries MBMS data of an MBMS segment based on the detection of the MSP abort decoding events. The UE aborts the attempt to decode the one or more subframes.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: September 5, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Omar Sabbarini, Mohammed Tawashi, Marc Azar, Pavan Kaivaram, Meric Uzunoglu, Sivaramakrishna Veerepalli, Ramchandran Srinivasan, Mohan Krishna Gowda
  • Publication number: 20170223589
    Abstract: Various embodiments include multi-subscription multi-standby (MSMS) communication devices and methods for managing reception of data using a first subscription following a tune-away by a radio frequency (RF) resource chain from the first subscription to a second subscription. In various embodiments the MSMS communication device may receive data over the first subscription during a warm-up period of the RF resource chain following completion of the tune-away. In some embodiments, the device processor may receive the data over the first subscription during the warm-up period using one or more channel parameters of the first subscription determined before the tune-away. In some embodiments, the device processor may receive data over the first subscription during the warm-up period using one or more channel parameters of the first subscription determined initially during the warm-up period.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 3, 2017
    Inventors: Kuo-Chun Lee, Levent Aydin, Sivaramakrishna Veerepalli, Reza Shahidi, Wenshu Zhang, Jack Shyh-Hurng Shauh, Pavan Chaithanya Kaivaram, Ramchandran Srinivasan, Vivek Padi, Muhammed Sarwar
  • Publication number: 20170078951
    Abstract: Embodiments include systems and methods for managing access to receive chains of a multi-subscription multi-standby (MSMS) communication device. A device processor may determining a receive mode of the MSMS communication device. In response to determining that the receive mode is a diversity sharing mode, the device processor may monitor a data loss from the broadcast data stream, and may determine a first subscription schedule and a second subscription schedule. The device processor may determine that the data loss is greater than or equal to a threshold, and the device processor may determine that there is an upcoming overlap between the first subscription schedule and the second subscription schedule. The device processor may prevent the second subscription from using the second receive chain.
    Type: Application
    Filed: October 2, 2015
    Publication date: March 16, 2017
    Inventors: Kuo-Chu Lee, Sivaramakrishna Veerepalli, Chih-Ping Hsu, Jack Shyh-Hurng Shauh, Shailesh Maheshwari, Mohan Krishna Gowda, Alexey Semjonovs, Omar Sabbarini, Daniel Amerga, Shishir Ramesha, Pavan Chaithanya Kiavaram, Ramchandran Srinivasan
  • Publication number: 20170079062
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE determines a failure to receive an MSI for a first MSP. The UE attempts to decode one or more subframes in the first MSP. The UE detects an occurrence of an MSP abort decoding event. The UE determines that the first MSP does not include any subframe that carries MBMS data of an MBMS segment based on the detection of the MSP abort decoding events. The UE aborts the attempt to decode the one or more subframes.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 16, 2017
    Inventors: Omar SABBARINI, Mohammed TAWASHI, Marc AZAR, Pavan KAIVARAM, Meric UZUNOGLU, Sivaramakrishna VEEREPALLI, Ramchandran SRINIVASAN, Mohan Krishna GOWDA
  • Publication number: 20160323061
    Abstract: Dynamic forward error correction (FEC) setting is discussed in which the network determines a FEC percentage for each video segment of a video streaming service, based on consideration of the transfer length of the video segment and the allocated bandwidth. When the transfer length and allocated bandwidth reflect transmission of less than peak bandwidth, the network will determine a higher FEC percentage that uses the otherwise wasted bandwidth to transmit additional redundancy symbols. The additional redundancy symbols increase the error recovery rate when collisions occur between streaming video reception and page monitoring occasions of other networks in multi-network, multi-subscriber identification module (SIM) mobile devices. A network entity may then transmit the dynamic FEC percentage for each video segment in the file description table (FDT) associated with the video streaming service.
    Type: Application
    Filed: September 10, 2015
    Publication date: November 3, 2016
    Inventors: Kuo-Chun Lee, Sivaramakrishna Veerepalli, Jack Shyh-hurng Shauh, Shailesh Maheshwari, Mohan Krishna Gowda, Ralph Akram Gholmieh, Nermeen Ahmed Bassiouny, Pavan Chaithanya Kaivaram, Ramchandran Srinivasan
  • Publication number: 20160205663
    Abstract: Embodiments include methods implemented by a processor of a mobile communication device for managing tune-aways by a radio frequency resource supporting a first subscription to support a second subscription. The processor may determine a data loss ratio of the data of a media file that is lost in transmission to the mobile communication device. The processor may compare the data loss ratio of the data to a first data loss ratio threshold and a second data loss ratio threshold, and the processor may block a tune-away event of the radio frequency resource from the first subscription to the second subscription in response to determining that the data loss ratio of the data is greater than the first data loss ratio threshold and less than the second data loss ratio threshold.
    Type: Application
    Filed: July 24, 2015
    Publication date: July 14, 2016
    Inventors: Jack Shyh-Hurng Shauh, Sivaramakrishna Veerepalli, Shailesh Maheshwari, Daniel Amerga, Kuo-Chun Lee, Mohan Krishna Gowda, Ralph Akram Gholmieh, Nagaraju Naik, Nermeen Ahmed Bassiouny, Thadi Manjunath Nagaraj, Amit Mahajan, Reza Shahidi, Pavan Kaivaram, Ramchandran Srinivasan, Alexey Semjonovs, Adrian Prentice, Marc Azar, Srinivasan Rajagopalan
  • Patent number: 9113427
    Abstract: This disclosure provides systems, methods, and apparatus for mobile transmit diversity. In one aspect a method of controlling a transmit power level of a wireless communications apparatus is provided. The method includes adjusting the transmit power level of a transmitter of the wireless communications apparatus to a first transmit power level in response to detecting a de-sense event indicative of interference with a signal received by a receiver of the wireless communications apparatus due to emissions from the transmitter. The method further includes maintaining the transmit power level substantially at the first transmit power level for a first time interval in response to adjusting the transmit power level to the first transmit power level. The method further includes adjusting a transmit power level limit of the transmitter after the time interval at a rate for a second time interval.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 18, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Rashid Ahmed Akbar Attar, Troy Russell Curtiss, Ammar Taiyebi Kitabi, Chintan Shirish Shah, Athreya Prasad, Sunil Rajendran, Ramchandran Srinivasan
  • Publication number: 20140161048
    Abstract: This disclosure provides systems, methods, and apparatus for mobile transmit diversity. In one aspect a method of controlling a transmit power level of a wireless communications apparatus is provided. The method includes adjusting the transmit power level of a transmitter of the wireless communications apparatus to a first transmit power level in response to detecting a de-sense event indicative of interference with a signal received by a receiver of the wireless communications apparatus due to emissions from the transmitter. The method further includes maintaining the transmit power level substantially at the first transmit power level for a first time interval in response to adjusting the transmit power level to the first transmit power level. The method further includes adjusting a transmit power level limit of the transmitter after the time interval at a rate for a second time interval.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Applicant: Qualcomm Incorporated
    Inventors: Rashid Ahmed Akbar Attar, Troy Russell Curtiss, Ammar Taiyebi Kitabi, Chintan Shirish, Athreya Prasad, Sunil Rajendran, Ramchandran Srinivasan