Patents by Inventor Nagesh Kumar Bollapalli

Nagesh Kumar Bollapalli 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: 10469542
    Abstract: The present invention is directed to methods, apparatus and systems for optimizing media paths in communications networks. An exemplary embodiment includes the steps of a first SBC (SBC1) receiving a session request including a SDP offer for a session between first and second devices including media stream(s), said request being sent by a second SBC (SBC2) and traversing a portion of a signaling path including intermediary device(s), determining that media stream(s) should bypass one or more of the intermediary device(s), generating and transmitting to SBC2 from SBC1 a SDP answer including at least one of: (i) all SDP media descriptor transport addresses being set to zero; (ii) all SDP media stream connection values being set to 0.0.0.0 and at least one media transport address being non-zero; or (iii) header information or SDP information indicating that at least one intermediary device should be bypassed for the one or more media streams.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 5, 2019
    Assignee: Ribbon Communications Operating Company, Inc.
    Inventors: Nagesh Kumar Bollapalli, Ashish Sharma, Pendyala Satya Ravi Kiran
  • Patent number: 10419544
    Abstract: The present invention relates to communications methods, apparatus and systems for efficiently managing NAPT bindings and mappings. An exemplary embodiment of operating a communication system includes the steps of (i) receiving, at a real-time communications entity, a media session offer from a device, (ii) transmitting, from the communications entity to a Network Address and Port Translation entity (NAPT), a request signal to allocate a public Internet Protocol (IP) address and port number pair corresponding to an interface on the NAPT for the session; (iii) determining, at the communications entity, a remote IP address and port number pair corresponding to an interface on the device to be used for communicating media of the media session; (iv) transmitting, from the communications entity to the NAPT, a signal identifying the determined remote IP address and port number pair; and (v) releasing, at the NAPT, the allocated public IP address and port number pair.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 17, 2019
    Assignee: Ribbon Communications Operating Company, Inc.
    Inventors: Tolga Asveren, Nagesh Kumar Bollapalli
  • Publication number: 20190141084
    Abstract: Communications methods, apparatus and systems for detecting a status condition indicative of a failure of a media processing entity and providing media redirection to increase media resource function availability. One embodiment of the present invention is a method that includes directing, by a first Session Border Controller (SBC), a first media call flow of a first call through a first media content processing entity to a second SBC, detecting, at one of said first or second SBCs, a status condition indicative of a failure condition for the first media content processing entity, and redirecting, by the SBC that detects the status condition indicative of a failure condition, the first media call flow for the first call so that the first media call flow passes through a second media content processing entity instead of through the first media content processing entity without terminating the first call.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Inventors: Justin Hart, Ashish Sharma, Nagesh Kumar Bollapalli
  • Publication number: 20190132890
    Abstract: Systems, methods, and computer-readable storage media are disclosed which provide improved performance for packet switched (PS)-to-PS handovers. Embodiments provide for improved handover operations by utilizing registration refreshing techniques to reduce the time required to complete signaling and registration of a UE over a target access in connection with a handover of a communication session from a serving access to the target access. Embodiments further provide improved handover operations that eliminate the exchange of signaling information with a remote UE in connection with a handover of a communication session from a serving access to the target access. Further, handover operations are processed by a network node that is closer to the UE requesting the handover (e.g., the network node may be an Access-SBC/P-CSCF that operates between a core network and the UE).
    Type: Application
    Filed: December 24, 2018
    Publication date: May 2, 2019
    Inventors: Nagesh Kumar Bollapalli, Anuradha Sridhar, Rajiv Harish Patel, Pradeep Bala
  • Patent number: 10278106
    Abstract: Systems, methods, and computer-readable storage media are disclosed which provide improved performance for packet switched (PS)-to-PS handovers. Embodiments provide for improved handover operations by utilizing registration refreshing techniques to reduce the time required to complete signaling and registration of a UE over a target access in connection with a handover of a communication session from a serving access to the target access. Embodiments further provide improved handover operations that eliminate the exchange of signaling information with a remote UE in connection with a handover of a communication session from a serving access to the target access. Further, handover operations are processed by a network node that is closer to the UE requesting the handover (e.g., the network node may be an Access-SBC/P-CSCF that operates between a core network and the UE).
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 30, 2019
    Assignee: Ribbon Communications Operating Company, Inc.
    Inventors: Nagesh Kumar Bollapalli, Anuradha Sridhar, Rajiv Harish Patel, Pradeep Bala
  • Patent number: 10205753
    Abstract: Communications methods, apparatus and systems for detecting a status condition indicative of a failure of a media processing entity and providing media redirection to increase media resource function availability. One embodiment of the present invention is a method that includes directing, by a first Session Border Controller (SBC), a first media call flow of a first call through a first media content processing entity to a second SBC, detecting, at one of said first or second SBCs, a status condition indicative of a failure condition for the first media content processing entity, and redirecting, by the SBC that detects the status condition indicative of a failure condition, the first media call flow for the first call so that the first media call flow passes through a second media content processing entity instead of through the first media content processing entity without terminating the first call.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: February 12, 2019
    Assignee: Sonus Networks, Inc.
    Inventors: Justin Hart, Ashish Sharma, Nagesh Kumar Bollapalli
  • Publication number: 20190036983
    Abstract: Communications methods, apparatus and systems for conserving Media Resource Function (MRF) resources by identifying streams of sessions, for example, non-real time streams, which can be routed to avoid use of MRF resources. An exemplary embodiment includes receiving by a SBC a session initiation request from a first device directed to a second device for a session including a plurality of streams; establishing a plurality of routes to the second device, said routes including at least a first route and a second route, the first route not including a media content processing entity and the second route including a media content processing entity; identifying from the streams for the session a first set of streams; said first set of streams including one or more streams that do not require media content processing; and routing one or more of the streams of the first set of streams via the first route.
    Type: Application
    Filed: September 30, 2018
    Publication date: January 31, 2019
    Inventors: Ashish Sharma, Nagesh Kumar Bollapalli
  • Publication number: 20180337862
    Abstract: The present invention relates to communications methods, apparatus and systems for collecting metrics and/or traffic routing using SDN principles. In an exemplary method embodiment, the method includes the steps of: operating a SBC to: (i) receive a session initiation signal used to initiate a first media session; (ii) send to an SDN controller session identification information identifying a first RTCP packet stream corresponding to the first media session and causing said SDN controller to control a first open flow switch to establish an entry in a table to cause the first open flow switch to send a copy of the RTCP packets corresponding to the first RTCP packet stream to the SBC while also communicating the RTCP packets corresponding to the first RTCP packet stream towards the intended first RTCP packet stream destination.
    Type: Application
    Filed: November 3, 2017
    Publication date: November 22, 2018
    Inventors: Ashish Sharma, Nagesh Kumar Bollapalli, Siddharth Gahlaut
  • Patent number: 10129300
    Abstract: Communications methods, apparatus and systems for conserving Media Resource Function (MRF) resources by identifying streams of sessions, for example, non-real time streams, which can be routed to avoid use of MRF resources. An exemplary embodiment includes receiving by a SBC a session initiation request from a first device directed to a second device for a session including a plurality of streams; establishing a plurality of routes to the second device, said routes including at least a first route and a second route, the first route not including a media content processing entity and the second route including a media content processing entity; identifying from the streams for the session a first set of streams; said first set of streams including one or more streams that do not require media content processing; and routing one or more of the streams of the first set of streams via the first route.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 13, 2018
    Assignee: Sonus Networks, Inc.
    Inventors: Ashish Sharma, Nagesh Kumar Bollapalli
  • Publication number: 20180063764
    Abstract: Systems, methods, and computer-readable storage media are disclosed which provide improved performance for packet switched (PS)-to-PS handovers. Embodiments provide for improved handover operations by utilizing registration refreshing techniques to reduce the time required to complete signaling and registration of a UE over a target access in connection with a handover of a communication session from a serving access to the target access. Embodiments further provide improved handover operations that eliminate the exchange of signaling information with a remote UE in connection with a handover of a communication session from a serving access to the target access. Further, handover operations are processed by a network node that is closer to the UE requesting the handover (e.g., the network node may be an Access-SBC/P-CSCF that operates between a core network and the UE).
    Type: Application
    Filed: April 27, 2017
    Publication date: March 1, 2018
    Inventors: Nagesh Kumar Bollapalli, Anuradha Sridhar, Rajiv Harish Patel, Pradeep Bala
  • Publication number: 20170251028
    Abstract: The present invention is directed to methods, apparatus and systems for optimizing media paths in communications networks. An exemplary embodiment includes the steps of a first SBC (SBC1) receiving a session request including a SDP offer for a session between first and second devices including media stream(s), said request being sent by a second SBC (SBC2) and traversing a portion of a signaling path including intermediary device(s), determining that media stream(s) should bypass one or more of the intermediary device(s), generating and transmitting to SBC2 from SBC1 a SDP answer including at least one of: (i) all SDP media descriptor transport addresses being set to zero; (ii) all SDP media stream connection values being set to 0.0.0.0 and at least one media transport address being non-zero; or (iii) header information or SDP information indicating that at least one intermediary device should be bypassed for the one or more media streams.
    Type: Application
    Filed: February 28, 2017
    Publication date: August 31, 2017
    Inventors: Nagesh Kumar Bollapalli, Ashish Sharma, Pendyala Satya Ravi Kiran
  • Publication number: 20170180484
    Abstract: The present invention relates to communications methods, apparatus and systems for efficiently managing NAPT bindings and mappings. An exemplary embodiment of operating a communication system includes the steps of (i) receiving, at a real-time communications entity, a media session offer from a device, (ii) transmitting, from the communications entity to a Network Address and Port Translation entity (NAPT), a request signal to allocate a public Internet Protocol (IP) address and port number pair corresponding to an interface on the NAPT for the session; (iii) determining, at the communications entity, a remote IP address and port number pair corresponding to an interface on the device to be used for communicating media of the media session; (iv) transmitting, from the communications entity to the NAPT, a signal identifying the determined remote IP address and port number pair; and (v) releasing, at the NAPT, the allocated public IP address and port number pair.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 22, 2017
    Inventors: Tolga Asveren, Nagesh Kumar Bollapalli
  • Patent number: 9609059
    Abstract: Methods and apparatuses, including computer program products, are described for synchronization of shared initial filter criteria in an IP Multimedia Subsystem (IMS) network. A first computing device in the IMS network transmits a registration request to a second computing device in the IMS network. The first computing device receives a response to the registration request from the second computing device, including an identifier associated with a shared initial filter criteria set stored at the first computing device. The first computing device determines whether the shared initial filter criteria set corresponding to the identifier is stored at the first computing device and transmits a retrieval request to the second computing device if the shared initial filter criteria set corresponding to the identifier is not stored. The first computing device receives the shared initial filter criteria set from the second computing device, and stores the shared initial filter criteria set.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: March 28, 2017
    Assignee: SONUS NETWORKS, INC.
    Inventors: Nagesh Kumar Bollapalli, Siddharth Toshniwal, Sudharsanakrishnan Padmanabhan, Srinivasan Krishnamoorthy, Srimannarayana Chary
  • Publication number: 20170054764
    Abstract: Communications methods, apparatus and systems for conserving Media Resource Function (MRF) resources by identifying streams of sessions, for example, non-real time streams, which can be routed to avoid use of MRF resources. An exemplary embodiment includes receiving by a SBC a session initiation request from a first device directed to a second device for a session including a plurality of streams; establishing a plurality of routes to the second device, said routes including at least a first route and a second route, the first route not including a media content processing entity and the second route including a media content processing entity; identifying from the streams for the session a first set of streams; said first set of streams including one or more streams that do not require media content processing; and routing one or more of the streams of the first set of streams via the first route.
    Type: Application
    Filed: September 30, 2015
    Publication date: February 23, 2017
    Inventors: Ashish Sharma, Nagesh Kumar Bollapalli
  • Publication number: 20160366189
    Abstract: Communications methods, apparatus and systems for detecting a status condition indicative of a failure of a media processing entity and providing media redirection to increase media resource function availability. One embodiment of the present invention is a method that includes directing, by a first Session Border Controller (SBC), a first media call flow of a first call through a first media content processing entity to a second SBC, detecting, at one of said first or second SBCs, a status condition indicative of a failure condition for the first media content processing entity, and redirecting, by the SBC that detects the status condition indicative of a failure condition, the first media call flow for the first call so that the first media call flow passes through a second media content processing entity instead of through the first media content processing entity without terminating the first call.
    Type: Application
    Filed: July 29, 2015
    Publication date: December 15, 2016
    Inventors: Justin Hart, Ashish Sharma, Nagesh Kumar Bollapalli
  • Patent number: 9497183
    Abstract: A computer-implemented method for authorizing access by a user device to at least one service offered over an Internet Protocol (IP) network is provided. A server receives a message from the user device. The message indicates that the user device is configured to support the at least one service. The server then retrieves from a database policy data associated with the user device. The server validates based on the policy data that the user device is authorized to advertise the at least one service and the at least one service is available for access by the user device. If the at least one service is unauthorized or unavailable for access by the user device, the server modifies the message to indicate one or more authorized and available services for the user device without including the at least one service.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: November 15, 2016
    Assignee: SONUS NETWORKS, INC.
    Inventors: Siddharth Toshniwal, Shambhu Dayal Rai, Nagesh Kumar Bollapalli
  • Patent number: 9294337
    Abstract: Independent IMS and WebRTC communications networks are integrated via an applications server including IMS and WebRTC functionality. A user equipment device including IMS and WebRTC capability is registered via the same application server with both the IMS and WebRTC networks. The application server is configured to make a routing determination whether to route a communications session over an IMS communications path or an RTC communications path when it is determined that parallel independent paths are available.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 22, 2016
    Assignee: SONUS NETWORKS, INC.
    Inventors: Nagesh Kumar Bollapalli, Justin Hart
  • Publication number: 20150381601
    Abstract: A computer-implemented method for authorizing access by a user device to at least one service offered over an Internet Protocol (IP) network is provided. A server receives a message from the user device. The message indicates that the user device is configured to support the at least one service. The server then retrieves from a database policy data associated with the user device. The server validates based on the policy data that the user device is authorized to advertise the at least one service and the at least one service is available for access by the user device. If the at least one service is unauthorized or unavailable for access by the user device, the server modifies the message to indicate one or more authorized and available services for the user device without including the at least one service.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 31, 2015
    Inventors: Siddharth Toshniwal, Shambhu Dayal Rai, Nagesh Kumar Bollapalli
  • Publication number: 20150319239
    Abstract: Methods and apparatuses, including computer program products, are described for synchronization of shared initial filter criteria in an IP Multimedia Subsystem (IMS) network. A first computing device in the IMS network transmits a registration request to a second computing device in the IMS network. The first computing device receives a response to the registration request from the second computing device, including an identifier associated with a shared initial filter criteria set stored at the first computing device. The first computing device determines whether the shared initial filter criteria set corresponding to the identifier is stored at the first computing device and transmits a retrieval request to the second computing device if the shared initial filter criteria set corresponding to the identifier is not stored. The first computing device receives the shared initial filter criteria set from the second computing device, and stores the shared initial filter criteria set.
    Type: Application
    Filed: July 10, 2015
    Publication date: November 5, 2015
    Inventors: Nagesh Kumar Bollapalli, Siddharth Toshniwal, Sudharsanakrishnan Padmanabhan, Srinivasan Krishnamoorthy, Srimannarayana Chary
  • Publication number: 20150280963
    Abstract: Independent IMS and WebRTC communications networks are integrated via an applications server including IMS and WebRTC functionality. A user equipment device including IMS and WebRTC capability is registered via the same application server with both the IMS and WebRTC networks. The application server is configured to make a routing determination whether to route a communications session over an IMS communications path or an RTC communications path when it is determined that parallel independent paths are available.
    Type: Application
    Filed: May 30, 2014
    Publication date: October 1, 2015
    Applicant: Sonus Networks, Inc.
    Inventors: Nagesh Kumar Bollapalli, Justin Hart