Patents by Inventor Rajarshi Sanyal

Rajarshi Sanyal 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: 11252540
    Abstract: In a system and method for transporting SMS message between sending MNO and receiving MNO, wherein the receiving MNO uses a sponsor, a component is provided either in the network of the receiving MNO or, preferably, at the carrier of the receiving MNO. The component is in the routing path between the sending MNO and the routing MNO and/or in the return path and preferably in both paths. The component (WB) manages and enforces the proper SMS delivery methods to the receiving MNO by introducing itself in the SRI for the SMS request as a sending party, using a sponsored network entity (SMSC-WB), and/or introducing itself in the SRI of the SMS response message as a receiving party using a sponsored network identity (VMSC-WB, HLR-WB).
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 15, 2022
    Assignee: Belgacom International Carrier Services
    Inventors: Gery Irma Emiel Verwimp, Rajarshi Sanyal
  • Publication number: 20190191282
    Abstract: In a system and method for transporting SMS message between sending MNO and receiving MNO, wherein the receiving MNO uses a sponsor, a component is provided either in the network of the receiving MNO or, preferably, at the carrier of the receiving MNO. The component is in the routing path between the sending MNO and the routing MNO and/or in the return path and preferably in both paths. The component (WB) manages and enforces the proper SMS delivery methods to the receiving MNO by introducing itself in the SRI for the SMS request as a sending party, using a sponsored network entity (SMSC-WB), and/or introducing itself in the SRI of the SMS response message as a receiving party using a sponsored network identity (VMSC-WB, HLR-WB).
    Type: Application
    Filed: December 14, 2018
    Publication date: June 20, 2019
    Inventors: Rajarshi Sanyal, Gery Irma Emiel Verwimp
  • Patent number: 10178541
    Abstract: A method for powering voice over long term evolution (VoLTE) in long term evolution networks. A VoLTE/VoWiFi is centrally enabled for any sized network without implementing an IMS core, but rendering almost the same user experience as standard VoLTE (except voice call continuity). A conventional 2G/3G CS roaming model is enabled for both signaling and media routing. A subscriber profile is cached at a carrier VoLTE platform to enable optimized call routing. A validation mechanism is provided in case IMS AKA authentication is not possible due to an operator not being able to provision authentication vectors via Cx, S6a or MAP interfaces. Terminating access domain selection is implemented whenever an MT call arrives, whereby a T-ADS application server is eliminated. Voice call continuity is implemented whenever a VoLTE customer in a call leaves LTE coverage in favor of 2G/3G coverage. A novel method to actuate call continuity is proposed using a call back and call merge method.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: January 8, 2019
    Inventors: Bayani Carbone, Rajarshi Sanyal, Pascal Alloin, Alhad Wakankar, Ricardo Comblez Cavaco
  • Publication number: 20170347258
    Abstract: A method for powering voice over long term evolution (VoLTE) in long term evolution networks. A VoLTE/VoWiFi is centrally enabled for any sized network without implementing an IMS core, but rendering almost the same user experience as standard VoLTE (except voice call continuity). A conventional 2G/3G CS roaming model is enabled for both signaling and media routing. A subscriber profile is cached at a carrier VoLTE platform to enable optimized call routing. A validation mechanism is provided in case IMS AKA authentication is not possible due to an operator not being able to provision authentication vectors via Cx, S6a or MAP interfaces. Terminating access domain selection is implemented whenever an MT call arrives, whereby a T-ADS application server is eliminated. Voice call continuity is implemented whenever a VoLTE customer in a call leaves LTE coverage in favor of 2G/3G coverage. A novel method to actuate call continuity is proposed using a call back and call merge method.
    Type: Application
    Filed: December 12, 2016
    Publication date: November 30, 2017
    Inventors: Bayani Carbone, Rajarshi Sanyal, Pascal Alloin, Alhad Wakankar, Ricardo Comblez Cavaco
  • Patent number: 9408071
    Abstract: In a method and system for APN (Access Point Name) correction in a GPRS data roaming scenario where a sponsor operator network is used and a method and system for routing GTP messages to the correct destination network entity after actuating the APN correction as and when required. The GTP filter checks the IMSI and APN data in the GTP layer and, depending on the IMSI and APN data performs APN correction and manipulates GTP parameters to ensure the PDP Context is correctly established between the SGSN and the GGSN, and the further GTP Control or Data messages bypass the GTP Filter application. This solution allows appropriate routing of message, in particular for message to and from smartphone.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: August 2, 2016
    Assignee: Belgacom International Carrier Services
    Inventors: Rajarshi Sanyal, Pascal Alloin
  • Publication number: 20150078288
    Abstract: In a method and system for APN (Access Point Name) correction in a GPRS data roaming scenario where a sponsor operator network is used and a method and system for routing GTP messages to the correct destination network entity after actuating the APN correction as and when required. The GTP filter checks the IMSI and APN data in the GTP layer and, depending on the IMSI and APN data performs APN correction and manipulates GTP parameters to ensure the PDP Context is correctly established between the SGSN and the GGSN, and the further GTP Control or Data messages bypass the GTP Filter application. This solution allows appropriate routing of message, in particular for message to and from smartphone.
    Type: Application
    Filed: April 26, 2013
    Publication date: March 19, 2015
    Applicant: BELGACOM INTERNATIONAL CARRIER SERVICES
    Inventors: Rajarshi Sanyal, Pascal Alloin