Patents by Inventor Anand K. Oswal

Anand K. Oswal 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: 8051151
    Abstract: A system and method for providing service in a network having a wireless component is disclosed. The system and method comprise receiving a request for a dynamic address from a user node connected to a subscriber station having a convergence sub-layer, providing the dynamic address to the user node, associating the dynamic address with a service flow associated with the subscriber station, and sending data addressed to the dynamic address through the service flow. The dynamic address is based on a subscriber identifier associated with the subscriber station and a client identifier associated with the user node.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: November 1, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Michael L. Shannon, Jayaraman R. Iyer, Anand K. Oswal
  • Patent number: 8018948
    Abstract: In one embodiment, a security gateway receives an IPSec Initiation (IPSec INIT) request from a client. The security gateway may communicate with a AAA server to authenticate the client. After authentication, the security gateway intercepts a URR Discovery request from the client. The security gateway determines registration information for a response to the registration request. The registration information may be information on where the client can locate a D-GANC. A response is generated using the determined information and sent to the client. The response to the discovery request is performed without communicating with a P-GANC. Accordingly, a security gateway is used to authenticate the client and also to respond to the discovery request. This does not require that a P-GANC function be deployed in a network. Thus, cost and processing power may be saved.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 13, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Kevin Shatzkamer, Anand K. Oswal, Jayaraman Iyer, Mark Grayson, Navan Narang
  • Patent number: 7962123
    Abstract: In accordance with one embodiment of the present disclosure, a system for authentication of an access terminal generally includes a radio access network having a packet control function. The packet control function is operable to receive an extended authentication protocol (EAP) message from the access terminal, encapsulate the extended authentication protocol message in a radio-packet (RP) network message, and transmit the radio-packet network message to an IP gateway.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: June 14, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Parviz Yegani, Jayaraman Iyer, Timothy P. Stammers, Anand K. Oswal
  • Patent number: 7936722
    Abstract: In one embodiment according to the present disclosure, a system for implementing handover of a mobile IP session in a cellular communication network generally includes a processor and a memory for storing one or more context information rules associated with an access terminal. The processor is operable to receive a registration request message from the target radio network controller and in response to receipt of the registration request message, transmit a context information request message to query context information from an anchor IP gateway. The processor is also operable to receive a context information response message from the anchor IP gateway and apply the context information response message to the mobile IP connection. The context information response message including at least one context information rule that is associated with the access terminal.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: May 3, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Parviz Yegani, Jayaraman Iyer, Timothy P. Stammers, Anand K. Oswal
  • Patent number: 7929966
    Abstract: Communicating packets along a bearer path includes receiving a home network address and a visited network address at an access terminal. The home network address corresponds to a home anchored bearer path anchored at a home network of the access terminal. The visited network address corresponds to a visited anchored bearer path anchored at a visited network. The access terminal determines whether to use the home anchored bearer path or the visited anchored bearer path, and communicates packets using the home network address or the visited network address in accordance with the determination.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: April 19, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Jayaraman R. Iyer, Kent K. Leung, Timothy P. Stammers, Anand K. Oswal
  • Patent number: 7920519
    Abstract: Facilitating node mobility includes facilitating a communication session for a mobile node communicated along a first communication path. A first anchor point manages context information for the communication session, where the context information comprises information for supporting the communication session. A command to transfer the context information to a second anchor point is received from a home agent. The second anchor point is operable to facilitate communication of the communication session along a second communication path. The context information is transferred in response to the command.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: April 5, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, Viren K. Malaviya, John G. Waclawsky, David P. Lindert, Jayaraman R. Iyer
  • Patent number: 7801530
    Abstract: Caching content includes receiving at a cell site a content request for content. The cell site is associated with a cell, and the content request is received from a mobile node present in the cell. The content is retrieved in response to the content request. The content is cached at the cell site and sent to the mobile node. One or more recipient cell sites are identified. The content is distributed to the one or more recipient cell sites while the mobile node is present in the cell.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: September 21, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, Jayaraman R. Iyer
  • Patent number: 7787414
    Abstract: Requesting a network resource includes facilitating a communication session between a mobile node and an endpoint. A trigger event is received at a first anchor point associated with the mobile node. The trigger event indicates that reservation of a network resource is being requested for the communication session. A second anchor point associated with the endpoint is identified. Reservation of the network resources for the communication sessions is initiated over a tunnel between the first anchor point and the second anchor point.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: August 31, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Francois L. Le Faucheur, Kent K. Leung, Jayaraman R. Iyer, Viren K. Malaviya, Anand K. Oswal, David P. Lindert
  • Patent number: 7782824
    Abstract: A method of handling a mobile endpoint in a wireless network includes routing data for a mobile endpoint through a first base station. The mobile endpoint is wirelessly connected to the first base station and has a first signal strength at the first base station. The method also includes routing data for the mobile endpoint through the first base station and a second base station. The mobile endpoint is wirelessly connected to the first base station and has a second signal strength at the second base station. The second signal strength is above a first level. The method also includes routing data for the mobile endpoint through the second base station. The mobile endpoint is wirelessly connected to the second base station and has a third signal strength at the second base station. The third signal strength is above a second level.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: August 24, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, Jayaraman R. Iyer
  • Patent number: 7751830
    Abstract: Techniques for allowing a home agent to provide location/presence-based services are provided. In one embodiment, a point of attachment of an access network receives a discovery request from a mobile node. A mobile node is associated with a home agent in a home network different from the access network. Location/presence-based information is determined at the point of attachment. The location/presence-based information is added to a registration request at the layer 3 protocol layer. The registration request is then sent from the point of attachment to the home agent. When the registration request is received at the home agent, the home agent parses the registration request to determine the location/presence information from the request. The home agent then performs a location/presence service using the location/presence information.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: July 6, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Jayaraman Iyer, Anand K. Oswal, Timothy Stammers, Kent Leung
  • Patent number: 7715562
    Abstract: A system and method is provided for authenticating access in a mobile wireless network. The system and method comprise exchanging an extensible authentication protocol (EAP) packet with an access terminal over a high rate packet data radio link and a signaling interface through a radio access network, encapsulating the EAP packet in an authentication authorization and accounting (AAA) packet, and sending the AAA packet to an authentication server for authentication.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: May 11, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Parviz Yegani, Joseph A. Salowey, Jayaraman R. Iyer, Anand K. Oswal
  • Patent number: 7711372
    Abstract: According to one embodiment of the invention, a method includes determining, at a base station, at least one usability factor providing a relative measure of the desirability of receiving control of a mobile unit. The method also includes communicating, from a base station to a remote controller, the determined at least one usability factor for comparison to at least one usability factor of another base station as determined at the other base station and communicated to the remote controller. The method also includes taking control, by the base station, of the mobile unit in response to receiving a signal from a controller to take control of the mobile unit in response to comparison of the controller of the at least one usability factor determined by the base station and the at least one usability factor determined by the other base station.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: May 4, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Jayaraman R. Iyer, Anand K. Oswal
  • Patent number: 7657259
    Abstract: Particular embodiments provide an optimal allocation of a bearer manager or home agent. In one embodiment, a message is received from a mobile node requesting access to a visiting network that is different from a home network for the mobile node. An authentication request is sent to the home network requesting authentication for access. The authentication request indicates that a home agent has not been assigned. The home AAA server then sends a response that indicates the visiting AAA server can assign a home agent for the mobile node. The visiting AAA server then assigns a home agent that is optimally determined. The visiting home agent is different from a home agent that is found in the mobile node's home network. When a registration request is received, an IP gateway may send the registration request to the visiting home agent, which may not be sent back to the home network.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: February 2, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Parviz Yegani, Timothy P. Stammers, Jayaraman Iyer, Anand K. Oswal
  • Patent number: 7657268
    Abstract: Facilitating mobile node mobility includes facilitating at a current access location a communication session for a mobile node. Context information for the communication session is managed, where the context information comprises information for supporting the communication session. A predictive set comprising one or more predicted next access locations is established for the communication session. The context information is transferred to the predicted next access locations prior to the communication session moving to an actual next access location.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: February 2, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, John G. Waclawsky
  • Patent number: 7640023
    Abstract: Techniques and systems for server farm load balancing and resource allocation are disclosed. In one embodiment, a method of load balancing can include: arranging servers into service groups; receiving an access request with information related to a differentiation between the service groups; selecting one of the service groups based on a mapping comparison to the information; and selecting one of the servers within the selected service group based on a hardware utilization comparison. The servers can include GPRS (General Packet Radio Service) Gateway Support Node (GGSN) or Remote Authentication Dial In User Service (RADIUS) servers, for example. The information can include an Access Point Name (APN) or Calling Station ID, for example.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: December 29, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Weimin Ma, Ashish Chandwadkar, Chris O'Rourke, Robert Batz, Kevin Shatzkamer, Anand K. Oswal, Mark Grayson, Jayaraman Iyer
  • Patent number: 7616962
    Abstract: In one embodiment, techniques provide quality of service (QoS) for services using a gateway. The techniques include receiving one or more control signaling messages from a subscriber station at the gateway. The gateway is in a signaling path for the subscriber station where the subscriber station communicates through a wireless network. The gateway determines a policy to apply for the service based on the one or more control signaling messages. QoS parameters may be determined for the service based on the policy. For example, QoS parameters are determined for a session that is created for a media stream. The media stream may flow from the subscriber station to a base station to the gateway, and vice versa. The gateway may communicate the QoS parameters to the base station to cause the base station to reserve resources in the wireless network. Accordingly, a session for the subscriber station is created and resources are reserved to provide a QoS for a media stream.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: November 10, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, Jayaraman Iyer, Michael Shannon
  • Patent number: 7574209
    Abstract: Obtaining neighborhood information for a cell includes establishing the presence of a mobile node in a first cell having a first cell site. A communication session for the mobile node is facilitated. Neighborhood information is determined in response to facilitating the communication session. The neighborhood information describes a second cell having a second cell site. The neighborhood information is recorded in a neighborhood information record.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: August 11, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, John G. Waclawsky, Jayaraman R. Iyer, Viren K. Malaviya
  • Publication number: 20090183240
    Abstract: A network system for authorizing an endpoint node for a communication service includes an operator network and an organization network. The operator network operates to perform a device authorization operation to authorize the endpoint node for a communication session. The organization network operates to facilitate a service authorization operation to authorize the endpoint node for the communication service of the communication session.
    Type: Application
    Filed: March 23, 2009
    Publication date: July 16, 2009
    Applicant: Cisco Technology, Inc.
    Inventors: Arthur E. Feather, John G. Waclawsky, Viren K. Malaviya, Anand K. Oswal
  • Publication number: 20090133102
    Abstract: Techniques for security association management on a home agent and a foreign agent are described herein. In one embodiment, in response to a first mobile network registration request from a mobile node, a remote authentication facility is accessed to retrieve a security association for the mobile node for authenticating and providing a first network connectivity to the mobile node, wherein the security association is associated with a lifespan. The security association is inserted in a local security association database to create a security association entry, wherein the security association entry includes the lifespan.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 21, 2009
    Inventors: Renhua Wen, Alfred C. Lindem, III, Anand K. Oswal
  • Patent number: 7536187
    Abstract: Supporting communication sessions at a mobile node includes determining at a mobile node an address for one or more interior network elements of a network system. A interior network element is distinct from an edge network element of the network system, and is operable to establish a communication session. An address for an interior network element is inserted into packets. The packets are sent from the mobile node to the interior network element to communicate directly with the interior network element. The communication session is established using the interior network element.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: May 19, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Anand K. Oswal, Viren K. Malaviya, John G. Waclawsky, David P. Lindert, Jayaraman R. Iyer