Patents by Inventor Xavier De Foy

Xavier De Foy 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: 9621537
    Abstract: An application server receives a request for service from a wireless transmit/receive unit (WTRU) associated with a home network that includes a home subscriber server (HSS) and a bootstrapping server function (BSF) coupled via a Zh reference point. The application server authenticates the WTRU at least in part by (i) redirecting the WTRU to an identity provider co-located with a network application function (IDP/NAF) and coupled to the BSF via a Zn reference point and (ii) receiving an assertion from the WTRU that the IDP/NAF has authenticated the WTRU based on user security settings retrieved from the BSF by the IDP/NAF over the Zn reference point. After authenticating the WTRU, the application server (i) retrieves user-specific Sh-reference-point-type data from the HSS via the IDP/NAF over the Zn and Zh reference points and (ii) provides the service to the WTRU based on the retrieved user-specific Sh-reference-point-type data.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 11, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Kamel M. Shaheen, Milan Patel, Osama Lotfallah, Hang Liu, Yousif Targali
  • Patent number: 9578568
    Abstract: A method of Inter-User Equipment (UE) Transfer (IUT) for use in an Internet Protocol (IP) Multimedia Subsystem (IMS) capable wireless transmit/receive unit (WTRU), the method comprising: receiving, at the IMS capable WTRU, an IUT session transfer command from a non-IMS capable WTRU via non-IMS signaling; translating, at the IMS capable WTRU, the IUT session transfer command to an IMS based message; and transmitting, from the IMS capable WTRU, the translated IMS based message to a Service Centralization and Continuity Application Server (SCC AS).
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: February 21, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Robert G. Gazda, Debashish Purkayastha, Kamel M. Shaheen
  • Publication number: 20170048688
    Abstract: An apparatus and method are described for sponsoring service and preferential traffic handling, (i.e., data connectivity) by wireless transmit/receive units (WTRUs). A first WTRU may initiate user sponsoring of a second WTRU via an application server (AS). The first WTRU may receive a service trigger from the AS and forward the service trigger to the second WTRU. The second WTRU may then initiate a sponsored session with the AS using the service trigger in order to receive a service from the AS. The first WTRU may also request the AS to transfer a credit to the second WTRU. The AS may establish a direct communication link with a charging system including an online charging function (OCF) and a charging data function (CDF). The AS may send a request to a network to provide preferential traffic handling needed to deliver content to the second WTRU.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 16, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Ulises Olvera-Hernandez, Dimitrios Karampatsis, Hang Liu, Kamel M. Shaheen
  • Patent number: 9560088
    Abstract: Techniques for inter-user equipment (UE) transfer (IUT) are disclosed. An application server may receive an IUT request for transfer of a media session toward at least one initial UE such that the media session is to be played by at least two target UEs. The server may determine eligibility for IUT with group synchronization based on the request. The server may send a message to the initial UE that IUT with group synchronization is not allowed on a condition that IUT with group synchronization is not allowed. Further, the server may trigger inter-destination media synchronization (IDMS) for group synchronization of media sessions among the UEs on a condition that IUT with group synchronization is allowed. The media sessions may include a first media session and second media session. The media stream may be played by at least two UEs that are geographically separated after the transfer.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: January 31, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Hang Liu, Kamel M. Shaheen, Milan Patel, Xavier De Foy, Osama Lotfallah, Debashish Purkayastha
  • Publication number: 20170012966
    Abstract: An application server receives a request for service from a wireless transmit/receive unit (WTRU) associated with a home network that includes a home subscriber server (HSS) and a bootstrapping server function (BSF) coupled via a Zh reference point. The application server authenticates the WTRU at least in part by (i) redirecting the WTRU to an identity provider co-located with a network application function (IDP/NAF) and coupled to the BSF via a Zn reference point and (ii) receiving an assertion from the WTRU that the IDP/NAF has authenticated the WTRU based on user security settings retrieved from the BSF by the IDP/NAF over the Zn reference point. After authenticating the WTRU, the application server (i) retrieves user-specific Sh-reference-point-type data from the HSS via the IDP/NAF over the Zn and Zh reference points and (ii) provides the service to the WTRU based on the retrieved user-specific Sh-reference-point-type data.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 12, 2017
    Inventors: Xavier De Foy, Kamel M. Shaheen, Milan Patel, Osama Lotfallah, Hang Liu, Yousif Targali
  • Patent number: 9544127
    Abstract: A method and apparatus are described for synchronizing mobile station (i.e., wireless transmit/receive unit (WTRU)) media flows during a collaboration session. Inter-WTRU transfer request messages, flow addition request messages and session update request messages may be exchanged between a plurality of WTRUs and a session continuity control application server (SCC-AS). Each of the messages may include a session description protocol (SDP) attribute line containing time synchronization information (e.g., a presentation time offset (PTO) information element (IE), a media flow group identity (ID) and a synchronization tolerance IE). The SCC-AS may update the time synchronization information and include the updated information in messages it sends to the WTRUs, which may re-synchronize their respective media flows based on the updated time synchronization information.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: January 10, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Milan Patel, Kamel M. Shaheen, Debashish Purkayastha, Osama Lotfallah, Hang Liu
  • Patent number: 9497627
    Abstract: A method and apparatus for interworking between a mobile network operator and an application provider are disclosed. A network application function (NAF) may be co-located with an OpenID provider such that an application server may communicate with the NAF to access a home subscriber server (HSS) via a bootstrapping server function (BSF). The interfaces between BSF and HSS, and between BSF and NAF may be enhanced to carry information that is available through Sh interface between the application server and the HSS. When the WTRU is roaming in a visited network, the application server may communicate with the visited network for charging and policing for serving the service request from the WTRU. The application server may be co-located with an NAF, and may authenticate the WTRU using Generic Bootstrapping Architecture, and may communicate with a BSF in a home network via an eZn-proxy function to access an HSS.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 15, 2016
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xavier De Foy, Yousif Targali, Kamel M. Shaheen, Hang Liu, Milan Patel, Osama Lotfallah
  • Publication number: 20160294941
    Abstract: Disclosed herein are methods and systems for integrating peer-to-peer (P2P) networks with content delivery networks (CDNs). In an embodiment, a method for use in a network storage control peer (NSCP) supporting P2P operation includes receiving swarm stats from a tracker; determining, based on the received swarm stats, a P2P rarity associated with a content piece; and responsive to the determined P2P rarity, transmitting an upload request message to an ingestion gateway, wherein the upload request message indicates that the content piece is to be uploaded to a CDN.
    Type: Application
    Filed: June 15, 2016
    Publication date: October 6, 2016
    Inventors: Xavier De Foy, Shamim Akbar Rahman, Serhad Doken, Milan Patel, Osama Lotfallah, Hang Liu
  • Publication number: 20160255535
    Abstract: Systems, methods, and instrumentalities are disclosed for defining a network specialization mechanism that enables a better alignment between end users' usage profiles and their access networks. Conteni specialization of networks may be implemented as a preference o a particular SCN or network in terms of content. Such a network may, for example, cache in priority preferred content, provide preferential quality of service (QoS), or limit access to non-preferred content. A network may advertise its preference or content specialization to end users (e.g., so that end users can decide to attach to SCNs or networks with compatible preferences) and to other content networks (e.g., to influence content routing decisions or to negotiate partitioning of the specialization space). Such content specialization may apply to physical or virtual networks.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 1, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Bartosz Balazinski, Alexander Reznik, Juan Carlos Zuniga, Jun Li, John Cartmell, Hang Liu
  • Patent number: 9426305
    Abstract: An apparatus and method are described for sponsoring service and preferential traffic handling, (i.e., data connectivity) by wireless transmit/receive units (WTRUs). A first WTRU may initiate user sponsoring of a second WTRU via an application server (AS). The first WTRU may receive a service trigger from the AS and forward the service trigger to the second WTRU. The second WTRU may then initiate a sponsored session with the AS using the service trigger in order to receive a service from the AS. The first WTRU may also request the AS to transfer a credit to the second WTRU. The AS may establish a direct communication link with a charging system including an online charging function (OCF) and a charging data function (CDF). The AS may send a request to a network to provide preferential traffic handling needed to deliver content to the second WTRU.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 23, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Ulises Olvera-Hernandez, Dimitrios Karampatsis, Hang Liu, Kamel M. Shaheen
  • Publication number: 20160242086
    Abstract: A method of Inter-User Equipment (UE) Transfer (IUT) for use in an Internet Protocol (IP) Multimedia Subsystem (IMS) capable wireless transmit/receive unit (WTRU), the method comprising: receiving, at the IMS capable WTRU, an IUT session transfer command from a non-IMS capable WTRU via non-IMS signaling; translating, at the IMS capable WTRU, the IUT session transfer command to an IMS based message; and transmitting, from the IMS capable WTRU, the translated IMS based message to a Service Centralization and Continuity Application Server (SCC AS).
    Type: Application
    Filed: April 21, 2016
    Publication date: August 18, 2016
    Inventors: Xavier De Foy, Robert G. Gazda, Debashish Purkayastha, Kamel M. Shaheen
  • Publication number: 20160227471
    Abstract: Methods, systems, and instrumentalities are described to obtain application-based connectivity. A wireless transmit receive unit (WTRU) may, in response to a request to access a connectivity-sponsored application, establish a control connection over a first access network for contacting an application connectivity coordinator. The establishment of control connection may include sending an attach request, receiving an IP address for a control link to the application connectivity coordinator, and receiving an IP address. Using the control connection, the WTRU may send an access network discovery request to the application connectivity coordinator. The WTRU may receive, from the application connectivity coordinator a list of access networks. The WTRU may select a second access network from the list of access networks to access the connectivity-sponsored application.
    Type: Application
    Filed: September 17, 2014
    Publication date: August 4, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Michelle Perras, Alexander Reznik, Kenneth F. Lynch, Scott C. Hergenhan, Robert G. Gazda, Sowmini Gundamraju
  • Patent number: 9398088
    Abstract: A method and apparatus for use in a network storage control peer (NSCP) supporting peer to peer (P2P) operation are disclosed. The method includes receiving a content map request message and transmitting a content map response message including an indication that a CDN-stored content piece is available from the NSCP; and, receiving a content fetch request message for the content piece and transmitting a response message including a redirection command and the CDN URI for the content piece.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: July 19, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xavier De Foy, Hang Liu, Shamim A. Rahman, Milan Patel, Serhad Doken, Osama Lotfallah
  • Publication number: 20160197831
    Abstract: This disclosure relates enhancements to a SDN system including the controller, southbound interface, and OpenFlow devices, to enable hash-routing, and describes SDN applications making use of this feature. More specifically, the application relates to Software Defined Networking (e.g., OpenFlow) enhancements to facilitate the deployment and usage of Distributed Hash Tables, for example as part of Information Centric Networking (ICN).
    Type: Application
    Filed: August 8, 2014
    Publication date: July 7, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xavier DE FOY, Hang Liu, Hao Jin
  • Patent number: 9350771
    Abstract: A method of Inter-User Equipment (UE) Transfer (IUT) for use in a Home enhanced-Node B (H(e)NB), the method comprising receiving a transfer command from a first IMS capable WTRU via IMS signaling, translating the transfer command to a non-IMS based message, and transmitting the translated non-IMS based message to a Service Centralization and Continuity Application Server (SCC AS).
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: May 24, 2016
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Kamel M. Shaheen, Robert G. Gazda, Xavier De Foy, Debashish Purkayastha
  • Publication number: 20160014171
    Abstract: Techniques for inter-user equipment (UE) transfer (IUT) are disclosed. An application server may receive an IUT request for transfer of a media session toward at least one initial UE such that the media session is to be played by at least two target UEs. The server may determine eligibility for IUT with group synchronization based on the request. The server may send a message to the initial UE that IUT with group synchronization is not allowed on a condition that IUT with group synchronization is not allowed. Further, the server may trigger inter-destination media synchronization (IDMS) for group synchronization of media sessions among the UEs on a condition that IUT with group synchronization is allowed. The media sessions may include a first media session and second media session. The media stream may be played by at least two UEs that are geographically separated after the transfer.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Hang Liu, Kamel M. Shaheen, Milan Patel, Xavier De Foy, Osama Lotfallah, Debashish Purkayastha
  • Publication number: 20150365444
    Abstract: A method and apparatus for inter-user equipment (UE) transfer (IUT) of collaborative session control and session information between WTRUs. A collaborative session control transfer request including ongoing session information is transmitted prior to transfer of session control from one WTRU to another WTRU. Ongoing session information may include information regarding media flows and devices involved in the session. A media control transfer response is transmitted in response to the transfer request.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC
    Inventors: Xavier DE FOY, Osama LOTFALLAH, Milan PATEL
  • Patent number: 9210199
    Abstract: A WTRU may receive a first data flow from a source device such as a correspondence node and perform a seamless IUT such that the correspondent node is unaware that the flow has been transferred to a different WTRU. The WTRU may register with a first home agent, wherein the first home agent receives a plurality of messages addressed for a home address. The home agent may forward the messages to the WTRU at a first care-of-address. The WTRU may send a binding update to the first home agent. The binding update may comprise a second traffic selector and a second action. The second action may specify that a second message of the plurality of messages is to be forwarded to a different WTRU when the second message matches the second traffic selector.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: December 8, 2015
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Michelle Perras, Xavier De Foy, Kamel M. Shaheen
  • Patent number: 9143539
    Abstract: Techniques for inter-user equipment (UE) transfer (IUT) are disclosed. An application server receives an IUT request for transfer of a media session toward at least one UE such that a media stream is played by at least two UEs that are geographically separated after the transfer. The application server triggers inter-destination media synchronization (IDMS) for group synchronization of the media session among the UEs. The media stream may be anchored at a media server, and a media synchronization application server for the IDMS may be running at the media server. Alternatively, the media stream may be anchored at a media resource function (MRF), and a media synchronization application server for the IDMS may be running at the MRF.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: September 22, 2015
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Hang Liu, Kamel M. Shaheen, Milan Patel, Xavier De Foy, Osama Lotfallah, Debashish Purkayastha
  • Patent number: 9119115
    Abstract: A method and apparatus for inter-user equipment (UE) transfer (IUT) of collaborative session control and session information between WTRUs. A collaborative session control transfer request including ongoing session information is transmitted prior to transfer of session control from one WTRU to another WTRU. Ongoing session information may include information regarding media flows and devices involved in the session. A media control transfer response is transmitted in response to the transfer request.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: August 25, 2015
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xavier De Foy, Osama Lotfallah, Milan Patel