Patents by Inventor Shaji E. Radhakrishnan
Shaji E. Radhakrishnan 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).
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Patent number: 10021725Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to marco base stations and other types of access technologies such as Wi-Fi.Type: GrantFiled: September 7, 2016Date of Patent: July 10, 2018Assignee: Cisco Technology, Inc.Inventors: Vincent Spinelli, John Depietro, Vijay Kathuria, Mohan Rangan, Rajat Ghai, Ashraf M. Dahod, Rajesh Ramankutty, Sanil Kumar Puthiyandyil, Shaji E. Radhakrishnan
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Patent number: 9854477Abstract: Systems and methods for providing a handoff between technologies are disclosed. An intra-technology handoff occurs where the same integrated chassis handles the session for the different access technologies. In an intra-technology handoff, the same IP address and the session can be maintained through the handoff. The mobile node can undergo a handoff without issuing a registration request in some embodiments. An inter-technology handoff occurs from one integrated chassis to another integrated chassis. The integrated chassis can preserve session and context information in a session manager and in a handoff from one access technology to another the same session manager can be chosen with the session and context information remaining intact even though the access technology has changed. The integrated chassis can provide an access technology handoff where the core network does not notice any change and applications running on or delivered to the mobile node are not effected.Type: GrantFiled: January 3, 2014Date of Patent: December 26, 2017Assignee: Cisco Technology, Inc.Inventors: Shaji E. Radhakrishnan, Sanil Kumar Puthiyandyil, Rajesh Ramankutty, Leonard Schwartz
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Publication number: 20160381725Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to marco base stations and other types of access technologies such as Wi-Fi.Type: ApplicationFiled: September 7, 2016Publication date: December 29, 2016Applicant: CISCO TECHNOLOGY, INC.Inventors: Vincent Spinelli, John Depietro, Vijay Kathuria, Mohan Rangan, Rajat Ghai, Ashraf M. Dahod, Rajesh Ramankutty, Sanil Kumar Puthiyandyil, Shaji E. Radhakrishnan
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Patent number: 9445341Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to marco base stations and other types of access technologies such as Wi-Fi.Type: GrantFiled: March 21, 2014Date of Patent: September 13, 2016Assignee: CISCO TECHNOLOGY, INC.Inventors: Vincent Spinelli, John DePietro, Vijay Kathuria, Mohan Rangan, Rajat Ghai, Ashraf M. Dahod, Rajesh Ramankutty, Sanil Kumar Puthiyandyil, Shaji E. Radhakrishnan
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Publication number: 20140287760Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to marco base stations and other types of access technologies such as Wi-Fi.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Applicant: CISCO TECHNOLOGY, INC.Inventors: Vincent SPINELLI, John DEPIETRO, Vijay KATHURIA, Mohan RANGAN, Rajat GHAI, Ashraf M. DAHOD, Rajesh RAMANKUTTY, Sanil Kumar PUTHIYANDYIL, Shaji E. RADHAKRISHNAN
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Publication number: 20140119341Abstract: Systems and methods for providing a handoff between technologies are disclosed. An intra-technology handoff occurs where the same integrated chassis handles the session for the different access technologies. In an intra-technology handoff, the same IP address and the session can be maintained through the handoff. The mobile node can undergo a handoff without issuing a registration request in some embodiments. An inter-technology handoff occurs from one integrated chassis to another integrated chassis. The integrated chassis can preserve session and context information in a session manager and in a handoff from one access technology to another the same session manager can be chosen with the session and context information remaining intact even though the access technology has changed. The integrated chassis can provide an access technology handoff where the core network does not notice any change and applications running on or delivered to the mobile node are not effected.Type: ApplicationFiled: January 3, 2014Publication date: May 1, 2014Applicant: CISCO TECHNOLOGY, INC.Inventors: Shaji E. RADHAKRISHNAN, Sanil Kumar PUTHIYANDYIL, Rajesh RAMANKUTTY, Leonard SCHWARTZ
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Patent number: 8699462Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to marco base stations and other types of access technologies such as Wi-Fi.Type: GrantFiled: November 2, 2011Date of Patent: April 15, 2014Assignee: Cisco Technology, Inc.Inventors: Vincent Spinelli, John Depietro, Vijay Kathuria, Mohan Rangan, Rajat Ghai, Ashraf M. Dahod, Rajesh Ramankutty, Sanil Kumar Puthiyandyil, Shaji E. Radhakrishnan
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Patent number: 8638747Abstract: Systems and methods for providing a handoff between technologies are disclosed. An intra-technology handoff occurs where the same integrated chassis handles the session for the different access technologies. In an intra-technology handoff, the same IP address and the session can be maintained through the handoff. The mobile node can undergo a handoff without issuing a registration request in some embodiments. An inter-technology handoff occurs from one integrated chassis to another integrated chassis. The integrated chassis can preserve session and context information in a session manager and in a handoff from one access technology to another the same session manager can be chosen with the session and context information remaining intact even though the access technology has changed. The integrated chassis can provide an access technology handoff where the core network does not notice any change and applications running on or delivered to the mobile node are not effected.Type: GrantFiled: February 8, 2008Date of Patent: January 28, 2014Assignee: Cisco Technology, Inc.Inventors: Shaji E. Radhakrishnan, Sanil Kumar Puthiyandyil, Rajesh Ramankutty, Leonard Schwartz
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Patent number: 8630645Abstract: Systems and methods for providing fast handoff support by transferring information are provided. Additionally, a generic protocol message format is presented which allows the transfer of information used in the handoff. The generic protocol allows a gateway to request contexts or session information and send information that allows tunnel setup and mapping to other connections. The session, tunnel, and mapping information allow the gateways to switch packet processing operations without causing disruption to the packet flow. Further, in inter-gateway handoffs or inter-access network handoffs, fast and seamless handoffs are provided so the mobile station keeps the same IP address and the session continues.Type: GrantFiled: February 9, 2007Date of Patent: January 14, 2014Assignee: Cisco Technology, Inc.Inventors: Kuntal Chowdhury, Janakiraman Senthilnathan, Sanil Kumar Puthiyandyil, Shaji E. Radhakrishnan, Mruthyunjaya Navali, Leonard Schwartz
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Patent number: 8442485Abstract: Systems and methods for measuring and reporting prepaid service usage are provided. More particularly, monitoring and reporting packet data session usage for purposes of charging for service usage are provided. In some embodiments, layer-3 data packet monitoring is used to determine usage. In other embodiments, the start and end of a packet data session are used to determine usage. The usage can be determined from the duration of the packet data session or from the size or amount of packets sent and received by a mobile node.Type: GrantFiled: June 19, 2006Date of Patent: May 14, 2013Assignee: Cisco Technology, Inc.Inventors: Kuntal Chowdhury, Shaji E. Radhakrishnan
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Patent number: 8144684Abstract: Systems and methods for bridging packet flows to bypass call legs and/or tunnels are provided. A tunnel initiator, which can be an access gateway, a foreign agent, and a mobility anchor point, for example, provides a bypass for certain packets that have a destination serviced by the same tunnel initiator. The bridge allows the packets to bypass a backhaul loop and reduces latency and frees bandwidth for other purposes in the network. The bridging can be implemented in a tunnel initiator for mobile to mobile packet flows, mobile to land line packet flows, and land line to mobile packet flows. Route optimization can also be provided in certain embodiments.Type: GrantFiled: February 7, 2011Date of Patent: March 27, 2012Assignee: Cisco Technology, Inc.Inventors: Matthew H. Harper, Sanil Kumar Puthiyandyil, Rajesh Ramankutty, Shaji E. Radhakrishnan, Kuntal Chowdhury
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Publication number: 20120044908Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to marco base stations and other types of access technologies such as Wi-Fi.Type: ApplicationFiled: November 2, 2011Publication date: February 23, 2012Applicant: CISCO TECHNOLOGY, INC.Inventors: VINCENT SPINELLI, JOHN DEPIETRO, VIJAY KATHURIA, MOHAN RANGAN, RAJAT GHAI, ASHRAF M. DAHOD, RAJESH RAMANKUTTY, SANIL KUMAR PUTHIYANDYIL, SHAJI E. RADHAKRISHNAN
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Patent number: 8064909Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to macro base stations and other types of access technologies such as Wi-Fi.Type: GrantFiled: October 27, 2008Date of Patent: November 22, 2011Assignee: Cisco Technology, Inc.Inventors: Vincent Spinelli, John Depietro, Vijay Kathuria, Mohan Rangan, Rajat Ghai, Ashraf M. Dahod, Rajesh Ramankutty, Sanil Kumar Puthiyandyil, Shaji E. Radhakrishnan
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Patent number: 8041825Abstract: Systems and methods for providing an interface to communicate policy information from a policy server to a policy enforcement point are presented. An external policy server is used to implement and provide various policies to a policy enforcement point for enforcement on subscriber sessions and traffic flows of a mobile subscriber. A policy enforcement point can request instructions from the policy server using an access-request message and receive from the policy server unsolicited instructions with a change-of-authorization message. Policies for application to a subscriber session or traffic flow are included in the message from a policy server to the policy enforcement point. Other messages such as a disconnect message are used to terminate a subscriber session.Type: GrantFiled: October 20, 2006Date of Patent: October 18, 2011Assignee: Cisco Technology, Inc.Inventors: Andrew Gibbs, Shaji E. Radhakrishnan, Kuntal Chowdhury
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Publication number: 20110122844Abstract: Systems and methods for bridging packet flows to bypass call legs and/or tunnels are provided. A tunnel initiator, which can be an access gateway, a foreign agent, and a mobility anchor point, for example, provides a bypass for certain packets that have a destination serviced by the same tunnel initiator. The bridge allows the packets to bypass a backhaul loop and reduces latency and frees bandwidth for other purposes in the network. The bridging can be implemented in a tunnel initiator for mobile to mobile packet flows, mobile to land line packet flows, and land line to mobile packet flows. Route optimization can also be provided in certain embodiments.Type: ApplicationFiled: February 7, 2011Publication date: May 26, 2011Applicant: CISCO TECHNOLOGY, INC.Inventors: Matthew H. HARPER, Sanil Kumar PUTHIYANDYIL, Rajesh RAMANKUTTY, Shaji E. RADHAKRISHNAN, Kuntal CHOWDHURY
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Patent number: 7885248Abstract: Systems and methods for bridging packet flows to bypass call legs and/or tunnels are provided. A tunnel initiator, which can be an access gateway, a foreign agent, and a mobility anchor point, for example, provides a bypass for certain packets that have a destination serviced by the same tunnel initiator. The bridge allows the packets to bypass a backhaul loop and reduces latency and frees bandwidth for other purposes in the network. The bridging can be implemented in a tunnel initiator for mobile to mobile packet flows, mobile to land line packet flows, and land line to mobile packet flows. Route optimization can also be provided in certain embodiments.Type: GrantFiled: April 17, 2007Date of Patent: February 8, 2011Assignee: Starent Networks LLCInventors: Matthew H. Harper, Sanil Kumar Puthiyandyil, Rajesh Ramankutty, Shaji E. Radhakrishnan, Kuntal Chowdhury
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Publication number: 20090156213Abstract: Systems and methods are provided that allow inter-working between communication networks for the delivery of service to mobile nodes. A gateway is provided that communicates with a femto cell to extend service to an area that otherwise does not receive coverage from a service provider. The femto cell is a small scale base station used to provide coverage over a small area (such as a home or business), and connect to a home or enterprise network. The femto cell provides service for a mobile node and a gateway permits communication over a broadband network. The gateway integrates the mobile nodes connecting via a femto cell into the service provider's network. The gateway also allows provisioning of services and applications, control of service levels, and provides seamless handoffs to macro base stations and other types of access technologies such as Wi-Fi.Type: ApplicationFiled: October 27, 2008Publication date: June 18, 2009Inventors: Vincent SPINELLI, John DEPIETRO, Vijay KATHURIA, Mohan RANGAN, Rajat GHAI, Ashraf M. DAHOD, Rajesh RAMANKUTTY, Sanil Kumar PUTHIYANDYIL, Shaji E. RADHAKRISHNAN
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Publication number: 20080205342Abstract: Systems and methods for providing a handoff between technologies are disclosed. An intra-technology handoff occurs where the same integrated chassis handles the session for the different access technologies. In an intra-technology handoff, the same IP address and the session can be maintained through the handoff. The mobile node can undergo a handoff without issuing a registration request in some embodiments. An inter-technology handoff occurs from one integrated chassis to another integrated chassis. The integrated chassis can preserve session and context information in a session manager and in a handoff from one access technology to another the same session manager can be chosen with the session and context information remaining intact even though the access technology has changed. The integrated chassis can provide an access technology handoff where the core network does not notice any change and applications running on or delivered to the mobile node are not effected.Type: ApplicationFiled: February 8, 2008Publication date: August 28, 2008Inventors: Shaji E. Radhakrishnan, Sanil Kumar Puthiyandyil, Rajesh Ramankutty, Leonard Schwartz
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Publication number: 20070291678Abstract: Systems and methods for measuring and reporting prepaid service usage are provided. More particularly, monitoring and reporting packet data session usage for purposes of charging for service usage are provided. In some embodiments, layer-3 data packet monitoring is used to determine usage. In other embodiments, the start and end of a packet data session are used to determine usage. The usage can be determined from the duration of the packet data session or from the size or amount of packets sent and received by a mobile node.Type: ApplicationFiled: June 19, 2006Publication date: December 20, 2007Inventors: Kuntal Chowdhury, Shaji E. Radhakrishnan