Patents by Inventor Raghavendra M. Ramakrishna

Raghavendra M. Ramakrishna 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: 10038525
    Abstract: The embodiments of the invention provide at least a method and apparatus to schedule an uplink communication from a user equipment of a plurality of user equipment; identify one or more candidate cells to support the uplink communication from the user equipment; send a request to the identified one or more candidate cells for requesting at least one of antenna data and pilot symbols from the one or more candidate cells for the uplink communication from the user equipment; and in response to the request, receive the uplink communication from the user equipment via a coordinated multi-point operation using at least in part a reception cells of the one or more candidate cells.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: July 31, 2018
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Shirish Nagaraj, Raghavendra M. Ramakrishna, Christopher Schmidt, Phillip Rasky
  • Publication number: 20160315743
    Abstract: The embodiments of the invention provide at least a method and apparatus to schedule an uplink communication from a user equipment of a plurality of user equipment; identify one or more candidate cells to support the uplink communication from the user equipment; send a request to the identified one or more candidate cells for requesting at least one of antenna data and pilot symbols from the one or more candidate cells for the uplink communication from the user equipment; and in response to the request, receive the uplink communication from the user equipment via a coordinated multi-point operation using at least in part a reception cells of the one or more candidate cells.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 27, 2016
    Inventors: Shirish Nagaraj, Raghavendra M. Ramakrishna, Christopher Schmidt, Phillip Rasky
  • Patent number: 8903369
    Abstract: Systems and techniques for managing interference between pico cells in a pico cluster. Pico eNodeBs are configured in groups for each of a plurality of UEs, based on factors such as signal to noise ratio and geographic location. All signals from UEs may be measured by all eNodeBs in the cluster, but a pico group decodes packets only of UEs associated with the pico group. Decoded packets are exchanged between pico groups, and when a pico group is unable to decode packets of an associated UE, is uses the decoded packets received in exchanges to reconstruct an interference signal. The interference signal is subtracted from the received signal and the resulting received signal is used to decode the packets of the UE.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: December 2, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Phil Fleming, Shirish Nagaraj, Raghavendra M. Ramakrishna, Michael Honig
  • Patent number: 8855253
    Abstract: Apparatus, methods, and programs products are disclosed that perform the following techniques: in a receiver comprising first and second stages, each stage at least decoding information corresponding to a user equipment, wherein the second stage performs decoding only if the first stage completes decoding with a fail, predicting whether decoding performed by the second stage for the user equipment will complete with a pass or fail; and prior to completion of the second stage, sending an indication of the predicted pass or fail to the user equipment.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 7, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Suresh Kalyanasundaram, Shirish Nagaraj, Raghavendra M. Ramakrishna
  • Publication number: 20130225144
    Abstract: Systems and techniques for managing interference between pico cells in a pico cluster. Pico eNodeBs are configured in groups for each of a plurality of UEs, based on factors such as signal to noise ratio and geographic location. All signals from UEs may be measured by all eNodeBs in the cluster, but a pico group decodes packets only of UEs associated with the pico group. Decoded packets are exchanged between pico groups, and when a pico group is unable to decode packets of an associated UE, is uses the decoded packets received in exchanges to reconstruct an interference signal. The interference signal is subtracted from the received signal and the resulting received signal is used to decode the packets of the UE.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 29, 2013
    Inventors: Phil Fleming, Shirish Nagaraj, Raghavendra M. Ramakrishna, Michael Honig
  • Publication number: 20130223501
    Abstract: Apparatus, methods, and programs products are disclosed that perform the following techniques: in a receiver comprising first and second stages, each stage at least decoding information corresponding to a user equipment, wherein the second stage performs decoding only if the first stage completes decoding with a fail, predicting whether decoding performed by the second stage for the user equipment will complete with a pass or fail; and prior to completion of the second stage, sending an indication of the predicted pass or fail to the user equipment.
    Type: Application
    Filed: June 5, 2012
    Publication date: August 29, 2013
    Inventors: Suresh Kalyanasundaram, Shirish Nagaraj, Raghavendra M. Ramakrishna