Patents by Inventor Rohith Mohandas

Rohith Mohandas 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).

  • Internet protocol multimedia subsystem (IMS) call setup time booster
    Patent number: 11297112
    Abstract: A method for decreasing a Call Setup Time Key Performance Indicator (CST KPI) of an Internet Protocol (IP) multimedia call in a mobile telecommunications network includes: initiating the IP multimedia call from an originating user equipment (UE) to a terminating UE; transmitting a session initiation protocol (SIP) call initiation message from the originating UE to a terminating Proxy-Call Session Control Function (P-CSCF) through an originating Serving-Call Session Control Function (S-CSCF); and creating a wake-up message via a network element upon receiving the SIP call initiation message. The wake-up message bypasses a plurality of network application servers (ASs) to start switching a transition of the terminating UE from an idle state to a connected state before the SIP call initiation message reaches the terminating P-CSCF.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 5, 2022
    Assignee: DEUTSCHE TELEKOM AG
    Inventors: Holger Schmidt, Stefan-Peter Hoffmann, Rohith Mohandas
  • INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM (IMS) CALL SETUP TIME BOOSTER
    Publication number: 20220046067
    Abstract: A method for decreasing a Call Setup Time Key Performance Indicator (CST KPI) of an Internet Protocol (IP) multimedia call in a mobile telecommunications network includes: initiating the IP multimedia call from an originating user equipment (UE) to a terminating UE; transmitting a session initiation protocol (SIP) call initiation message from the originating UE to a terminating Proxy-Call Session Control Function (P-CSCF) through an originating Serving-Call Session Control Function (S-CSCF); and creating a wake-up message via a network element upon receiving the SIP call initiation message. The wake-up message bypasses a plurality of network application servers (ASs) to start switching a transition of the terminating UE from an idle state to a connected state before the SIP call initiation message reaches the terminating P-CSCF.
    Type: Application
    Filed: November 12, 2019
    Publication date: February 10, 2022
    Inventors: Holger Schmidt, Stefan-Peter Hoffmann, Rohith Mohandas