Patents by Inventor Ajaypal SINGH

Ajaypal SINGH 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).

  • Method and system for session resilience in packet gateways
    Patent number: 10932166
    Abstract: Use of available bits in the TEID field of the GTP header to hold information needed to recreate at least a partial state of the session, enough for it to be routed, without waiting for a full state update. The GTP PDU contains the IP Payload with the source and destination IP addresses. The embodiments use that information and the coded TEID bits to provide sufficient routing information so that the packet can be routed without the full state. The TEID is coded to include bits identifying the APN and bits identifying the QCI of the session. A bit can be used to indicate drop if the full state not available. The remaining bits are used to identify unique user sessions. Some of the TEID bits can be encoded with the charging ID. Because sufficient routing information is provided in each packet, a backup gateway does not need to checkpoint.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: February 23, 2021
    Assignee: Mavenir Systems, Inc.
    Inventors: Nishi Kant, Ajaypal Singh, Sudhagar Chinnaswamy
  • METHOD AND SYSTEM FOR SESSION RESILIENCE IN PACKET GATEWAYS
    Publication number: 20190223062
    Abstract: Use of available bits in the TEID field of the GTP header to hold information needed to recreate at least a partial state of the session, enough for it to be routed, without waiting for a full state update. The GTP PDU contains the IP Payload with the source and destination IP addresses. The embodiments use that information and the coded TEID bits to provide sufficient routing information so that the packet can be routed without the full state. The TEID is coded to include bits identifying the APN and bits identifying the QCI of the session. A bit can be used to indicate drop if the full state not available. The remaining bits are used to identify unique user sessions. Some of the TEID bits can be encoded with the charging ID. Because sufficient routing information is provided in each packet, a backup gateway does not need to checkpoint.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Applicant: MAVENIR SYSTEMS, INC.
    Inventors: Nishi KANT, Ajaypal SINGH, Sudhagar CHINNASWAMY