Patents by Inventor Karthik Kuntikana Shrikrishna

Karthik Kuntikana Shrikrishna 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: 11956105
    Abstract: Embodiments of the present disclosure relate to a method, an apparatus and a computer readable storage medium for generating soft-decision information for a receiver. In example embodiments, a method is provided. The method includes receiving, at a first device, a signal from a second device, the signal corresponding to a group of symbols transmitted from the second device; determining, by performing Lattice Reduction linear detection on the signal, a first group of estimated symbols for the group of symbols; determining, by performing iterative interference cancellation on the first group of estimated symbols, a second group of estimated symbols for the group of symbols; and generating, based on the second group of estimated symbols, soft-decision information about the group of symbols for use by a decoder at the first device. Embodiments of the present disclosure can improve the receiver performance with reduced complexity.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: April 9, 2024
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Chandrashekhar Thejaswi, Suresh Kalyanasundaram, Karthik Kuntikana Shrikrishna, Francis Dominique, Lele Shen
  • Publication number: 20230080729
    Abstract: Embodiments of the present disclosure relate to a method, an apparatus and a computer readable storage medium for generating soft-decision information for a receiver. In example embodiments, a method is provided. The method includes receiving, at a first device, a signal from a second device, the signal corresponding to a group of symbols transmitted from the second device; determining, by performing Lattice Reduction linear detection on the signal, a first group of estimated symbols for the group of symbols; determining, by performing iterative interference cancellation on the first group of estimated symbols, a second group of estimated symbols for the group of symbols; and generating, based on the second group of estimated symbols, soft-decision information about the group of symbols for use by a decoder at the first device. Embodiments of the present disclosure can improve the receiver performance with reduced complexity.
    Type: Application
    Filed: January 22, 2020
    Publication date: March 16, 2023
    Inventors: Chandrashekhar THEJASWI, Suresh KALYANASUNDARAM, Karthik KUNTIKANA SHRIKRISHNA, Francis DOMINIQUE, Lele SHEN
  • Patent number: 11411600
    Abstract: An apparatus is disclosed, comprising means for identifying a plurality of user equipment (UE), each transmitting one or more uplink packets for decoding at a base station associated with a given cell of a radio network. The apparatus further comprises means for clustering the identified user equipment into joint processing groups, each joint processing group comprising the identities of two or more user equipment as clustered and means for performing, in a first processing stage, joint processing of the uplink data streams for identified user equipment within common joint processing groups using one or more first processing algorithms to produce corresponding first processed uplink data streams.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 9, 2022
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Chandrashekhar Thejaswi, Suresh Kalyanasundaram, Rajeev Agrawal, Francis Dominique, Karthik Kuntikana Shrikrishna
  • Publication number: 20220006485
    Abstract: An apparatus is disclosed, comprising means for identifying a plurality of user equipment (UE), each transmitting one or more uplink packets for decoding at a base station associated with a given cell of a radio network. The apparatus further comprises means for clustering the identified user equipment into joint processing groups, each joint processing group comprising the identities of two or more user equipment as clustered and means for performing, in a first processing stage, joint processing of the uplink data streams for identified user equipment within common joint processing groups using one or more first processing algorithms to produce corresponding first processed uplink data streams.
    Type: Application
    Filed: October 21, 2019
    Publication date: January 6, 2022
    Inventors: Chandrashekhar THEJASWI, Suresh KALYANASUNDARAM, Rajeev AGRAWAL, Francis DOMINIQUE, Karthik KUNTIKANA SHRIKRISHNA
  • Patent number: 8873364
    Abstract: An Ordered Reduced Set Successive Detector (RSSD) for the V-BLAST spatial multiplexing scheme that uses a general two-dimensional non-uniform set partitioning for different symbols. The detector provides improved diversity and SNR gains at reduced complexity compared to a uniform set partitioning based detector. The detector can be used to reduce the complexity, with a small tradeoff in performance. Further, it is possible to obtain a quasi-ML performance using the disclosed detector at a reduced, yet fixed, complexity.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: October 28, 2014
    Assignees: Centre of Excellence in Wireless Technology, IIT-Hyderabad, IIT-Madras
    Inventors: Kiran Kumar Kuchi, Bhaskar Ramamurthi, Karthik Kuntikana Shrikrishna
  • Publication number: 20130188470
    Abstract: An Ordered Reduced Set Successive Detector (RSSD) for the V-BLAST spatial multiplexing scheme that uses a general two-dimensional non-uniform set partitioning for different symbols. The detector provides improved diversity and SNR gains at reduced complexity compared to a uniform set partitioning based detector. The detector can be used to reduce the complexity, with a small tradeoff in performance. Further, it is possible to obtain a quasi-ML performance using the disclosed detector at a reduced, yet fixed, complexity.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 25, 2013
    Applicants: Centre of Excellence in Wireless Technology, IIT-Madras, IIT-Hyderabad
    Inventors: Kiran Kumar Kuchi, Bhaskar Ramamurthi, Karthik Kuntikana Shrikrishna