Patents by Inventor Badri VARADAHARAJAN

Badri VARADAHARAJAN 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: 9155056
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: October 6, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Anand Ganesh Dabak, Eko Nugroho Onggosanusi, Badri Varadaharajan
  • Publication number: 20150055624
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronisation signal and a secondary synchronisation signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal.
    Type: Application
    Filed: September 9, 2014
    Publication date: February 26, 2015
    Inventors: ANAND GANESH DABAK, EKO NUGROHO ONGGOSANUSI, BADRI VARADAHARAJAN
  • Publication number: 20150016577
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter has at least three transmit antennas and includes a feedback decoding portion configured to recover at least one group-based channel quality indicator provided by a feedback signal from a receiver, wherein each group-based channel quality indicator corresponds to one of a set of transmission layer groupings. The transmitter also includes a modulator portion configured to generate at least one symbol stream and a mapping portion configured to multiplex each symbol stream to at least one transmission layer grouping. The transmitter further includes a pre-coder portion configured to couple the transmission layers to the transmit antennas for a transmission. The receiver includes a decoder portion which is configured to use decoded signals from at least one group to decode the other groups.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Badri Varadaharajan, Eko N. Onggosanusi
  • Publication number: 20140362818
    Abstract: A transmitter includes a bandwidth configuration unit configured to provide an increased system bandwidth corresponding to a bandwidth extension over multiple component carriers Additionally, the transmitter also includes a transmit unit configured to employ the bandwidth extension.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventors: Eko N. ONGGOSANUSI, Anand G. DABAK, Badri VARADAHARAJAN, Runhua CHEN, Tarik MUHAREMOVIC