Patents by Inventor Sreenivas CHIDURUPPA

Sreenivas CHIDURUPPA 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).

  • SIP user release
    Patent number: 9584551
    Abstract: A system that releases a Session Initiation Protocol (“SIP”) user from a serving function on an Internet Protocol Multimedia Subsystem (“IMS”) network receives a REGISTER refresh from a registered user equipment (“UE”). In response to the REGISTER refresh, the system sends a server assignment request to a home subscriber server (“HSS”) that clears the name of the Serving Call Session Control Function (“S-CSCF”) assigned for the registered user. The system then sends a gateway timeout or server timeout that would trigger the UE to send an initial REGISTER request.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: February 28, 2017
    Assignee: Oracle International Corporation
    Inventors: Sreenivas Chiduruppa, Ranjani Chandrasekar, Paul F. Smith
  • SIP load balancing
    Patent number: 9413670
    Abstract: An Interrogating Call Session Control Function (“I-CSCF”) server load balances Session Initiation Protocol (“SIP”) users over an Internet Protocol Multimedia Subsystem (“IMS”) network. The I-CSCF server establishes a Diameter connection between a first Serving Call Session Control Function (“S-CSCF”) server and receives a dynamically adjusted capacity and a status information from the first S-CSCF server. The I-CSCF server further receives from user equipment a request to initiate a SIP communication session over the IMS network.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: August 9, 2016
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Sreenivas Chiduruppa, Vikas Aralaguppe Rajegowda, Paul F. Smith
  • SIP LOAD BALANCING
    Publication number: 20160099871
    Abstract: An Interrogating Call Session Control Function (“I-CSCF”) server load balances Session Initiation Protocol (“SIP”) users over an Internet Protocol Multimedia Subsystem (“IMS”) network. The I-CSCF server establishes a Diameter connection between a first Serving Call Session Control Function (“S-CSCF”) server and receives a dynamically adjusted capacity and a status information from the first S-CSCF server. The I-CSCF server further receives from user equipment a request to initiate a SIP communication session over the IMS network.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 7, 2016
    Inventors: Sreenivas CHIDURUPPA, Vikas Aralaguppe RAJEGOWDA, Paul F. SMITH
  • SIP USER RELEASE
    Publication number: 20160100375
    Abstract: A system that releases a Session Initiation Protocol (“SIP”) user from a serving function on an Internet Protocol Multimedia Subsystem (“IMS”) network receives a REGISTER refresh from a registered user equipment (“UE”). In response to the REGISTER refresh, the system sends a server assignment request to a home subscriber server (“HSS”) that clears the name of the Serving Call Session Control Function (“S-CSCF”) assigned for the registered user.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 7, 2016
    Inventors: Sreenivas CHIDURUPPA, Ranjani CHANDRASEKAR, Paul F. SMITH