Patents by Inventor Girish Sivasubramanian

Girish Sivasubramanian 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: 10356830
    Abstract: A method is provided in one example embodiment and may include sharing an access key from a control-plane serving gateway (SGW-C) to a plurality of user-plane serving gateways (SGW-Us); allocating a plurality of Fully Qualified Tunnel Endpoint Identifiers (FQTEIDs) associated with a user equipment (UE) session; generating an access token for the UE session based, at least in part, on the access key and the plurality of FQTEIDs; and appending the access token to user-plane packets for the UE session. The method can further include receiving a data packet for the UE session by a particular SGW-U, wherein the uplink packet is appended with the access token for the UE session; determining FQTEIDs associated with the UAT; and routing the uplink packet from the particular SGW-U based on the FQTEIDs.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: July 16, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Paras Mal Jain, Girish Sivasubramanian, Yogesh Devidas Patil
  • Publication number: 20180206275
    Abstract: A method is provided in one example embodiment and may include sharing an access key from a control-plane serving gateway (SGW-C) to a plurality of user-plane serving gateways (SGW-Us); allocating a plurality of Fully Qualified Tunnel Endpoint Identifiers (FQTEIDs) associated with a user equipment (UE) session; generating an access token for the UE session based, at least in part, on the access key and the plurality of FQTEIDs; and appending the access token to user-plane packets for the UE session. The method can further include receiving a data packet for the UE session by a particular SGW-U, wherein the uplink packet is appended with the access token for the UE session; determining FQTEIDs associated with the UAT; and routing the uplink packet from the particular SGW-U based on the FQTEIDs.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 19, 2018
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Paras Mal Jain, Girish Sivasubramanian, Yogesh Devidas Patil
  • Patent number: 9331948
    Abstract: An example method is provided and includes receiving a request from a mobile node for an Internet protocol (IP) address and establishing a point-to-point (PPP) link for the mobile node. The method also includes provisioning a first tunnel associated with a first communication flow for the mobile node, and provisioning a sub-tunnel with the first tunnel for a second communication flow. The second communication flow is associated with a high priority type of data to be transported on the sub-tunnel. In more specific embodiments, a call admission control (CAC) mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. Additionally, an inner label is installed in a header of a packet associated with the second communication flow in order to identify the sub-tunnel.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: May 3, 2016
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Venkat Venekataswami, Kowsalya Subramanian, Jegan Kumar Somi Ramasamy Subramanian, Manikandan Dhayalan, Rajesh Kumar Andhavaram, Girish Sivasubramanian
  • Patent number: 8699457
    Abstract: An example method is provided and includes establishing a session for a mobile node, and evaluating a plurality of label switched paths (LSPs) in response to the mobile node experiencing a handoff between a source packet data serving node (SPDSN) and a target PDSN (TPDSN). The method can also include provisioning a sub-tunnel with a first tunnel, which is associated with a selected label switched path. The selected label switched path is associated with a high priority type of data having a low latency characteristic.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: April 15, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Venkat Venkataswami, Jegan Kumar Somi Ramasamy Subramanian, Rajesh Kumar Andhavaram, Girish Sivasubramanian
  • Publication number: 20140043971
    Abstract: An example method is provided and includes receiving a request from a mobile node for an Internet protocol (IP) address and establishing a point-to-point (PPP) link for the mobile node. The method also includes provisioning a first tunnel associated with a first communication flow for the mobile node, and provisioning a sub-tunnel with the first tunnel for a second communication flow. The second communication flow is associated with a high priority type of data to be transported on the sub-tunnel. In more specific embodiments, a call admission control (CAC) mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. Additionally, an inner label is installed in a header of a packet associated with the second communication flow in order to identify the sub-tunnel.
    Type: Application
    Filed: October 16, 2013
    Publication date: February 13, 2014
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Venkat Venkataswami, Kowsalya Subramanian, Jegan Kumar Somi Ramasamy Subramanian, Manikandan Dhayalan, Rajesh Kumar Andhavaram, Girish Sivasubramanian
  • Patent number: 8599865
    Abstract: An example method is provided and includes receiving a request from a mobile node for an Internet protocol (IP) address and establishing a point-to-point (PPP) link for the mobile node. The method also includes provisioning a first tunnel associated with a first communication flow for the mobile node, and provisioning a sub-tunnel with the first tunnel for a second communication flow. The second communication flow is associated with a high priority type of data to be transported on the sub-tunnel. In more specific embodiments, a call admission control (CAC) mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. Additionally, an inner label is installed in a header of a packet associated with the second communication flow in order to identify the sub-tunnel.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: December 3, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Venkat Venkataswami, Kowsalya Subramanian, Jegan Kumar Somi Ramasamy Subramanian, Manikandan Dhayalan, Rajesh Kumar Andhavaram, Girish Sivasubramanian
  • Publication number: 20120106507
    Abstract: An example method is provided and includes establishing a session for a mobile node, and evaluating a plurality of label switched paths (LSPs) in response to the mobile node experiencing a handoff between a source packet data serving node (SPDSN) and a target PDSN (TPDSN). The method can also include provisioning a sub-tunnel with a first tunnel, which is associated with a selected label switched path. The selected label switched path is associated with a high priority type of data having a low latency characteristic.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 3, 2012
    Inventors: Balaji Venkat Venkataswami, Jegan Kumar Somi Ramasamy Subramanian, Rajesh Kumar Andhavaram, Girish Sivasubramanian
  • Publication number: 20120099538
    Abstract: An example method is provided and includes receiving a request from a mobile node for an Internet protocol (IP) address and establishing a point-to-point (PPP) link for the mobile node. The method also includes provisioning a first tunnel associated with a first communication flow for the mobile node, and provisioning a sub-tunnel with the first tunnel for a second communication flow. The second communication flow is associated with a high priority type of data to be transported on the sub-tunnel. In more specific embodiments, a call admission control (CAC) mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. Additionally, an inner label is installed in a header of a packet associated with the second communication flow in order to identify the sub-tunnel.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Inventors: Balaji Venkat Venkataswami, Kowsalya Subramanian, Jegan Kumar Somi Ramasamy Subramanian, Manikandan Dhayalan, Rajesh Kumar Andhavaram, Girish Sivasubramanian