Patents by Inventor Sorin Surdila

Sorin Surdila 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).

  • Publication number: 20240129029
    Abstract: A method performed by a first network node serving a first terminal when handling a call between the first terminal and a second terminal is provided. The first network node determines that the call is associated with longer than expected delays between the first and second terminals. The network node provides a Long Delay Indication to at least one of said first and second terminals to indicate said longer than expected delays in the call.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 18, 2024
    Inventors: Ralf Keller, Afshin Abtin, Sorin Surdila, Bo Burman
  • Publication number: 20230275936
    Abstract: Systems and methods are disclosed herein for Internet Protocol (IP) Multimedia Subsystem (IMS) support for non-International Mobile Subscriber Identity (IMSI) based Subscription Permanent Identifier (SUPI). In one embodiment, a method performed by a wireless communication device for IMS registration comprises deriving IMS registration information based on a non-IMSI based SUPI of the wireless communication device and sending an IMS registration request to an IMS node, the IMS registration request comprising the IMS registration information. In this manner, the non-IMSI SUPI can be reused for IMS access, e.g., when the network administrator does not plan to use an IP Multimedia Services Identity Module (ISIM), IMS Credential (IMC), or any future IMS-specific identity module in the deployed wireless communication devices. This simplifies the deployment by eliminating the need to manage and provision the IMS identity modules for a large number of wireless communication devices in use.
    Type: Application
    Filed: July 15, 2021
    Publication date: August 31, 2023
    Inventors: George Foti, Sorin Surdila
  • Publication number: 20230208796
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Inventors: Cristina Badulescu, Sorin Surdila, Nancy M. Greene
  • Patent number: 11588777
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: February 21, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Cristina Badulescu, Sorin Surdila, Nancy M. Greene
  • Publication number: 20220078153
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Cristina BADULESCU, Sorin SURDILA, Nancy M. GREENE
  • Patent number: 11258748
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: February 22, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Cristina Badulescu, Sorin Surdila, Nancy M. Greene
  • Publication number: 20200187000
    Abstract: This specification presents methods and apparatus in a device and a network node implementing a Bootstrapping Server Function, BSF, for enabling multiple service functions/clients in the device sharing a common public identity and each performing its own registration to one or more (IMS) core network, to use a common bootstrapping of application security based on the Generic Bootstrapping Architecture, GBA/Generic Authentication Architecture, GAA, infrastructure. Therefore, when using Extensible Markup Language, XML, Configuration Access Protocol, XCAP, or the likes, the multiple service functions in the device use the same authentication method for all XCAP traffic or the likes, such as GBA/GAA but enabling it to use the same key sets (e.g., same B-TID).
    Type: Application
    Filed: December 6, 2019
    Publication date: June 11, 2020
    Inventors: Cristina BADULESCU, Sorin SURDILA, Ralf KELLER
  • Patent number: 10506429
    Abstract: This specification presents methods and apparatus in a device and a network node implementing a Bootstrapping Server Function, BSF, for enabling multiple service functions/clients in the device sharing a common public identity and each performing its own registration to one or more (IMS) core network, to use a common bootstrapping of application security based on the Generic Bootstrapping Architecture, GBA/Generic Authentication Architecture, GAA, infrastructure. Therefore, when using Extensible Markup Language, XML, Configuration Access Protocol, XCAP, or the likes, the multiple service functions in the device use the same authentication method for all XCAP traffic or the likes, such as GBA/GAA but enabling it to use the same key sets (e.g., same B-TID).
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: December 10, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Cristina Badulescu, Sorin Surdila, Ralf Keller
  • Publication number: 20190306104
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Cristina BADULESCU, Sorin SURDILA, Nancy M. GREENE
  • Patent number: 10367772
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: July 30, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Cristina Badulescu, Sorin Surdila, Nancy M. Greene
  • Publication number: 20190124035
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Application
    Filed: December 14, 2018
    Publication date: April 25, 2019
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Cristina BADULESCU, Sorin SURDILA, Nancy M. GREENE
  • Publication number: 20190098498
    Abstract: This specification presents methods and apparatus in a device and a network node implementing a Bootstrapping Server Function, BSF, for enabling multiple service functions/clients in the device sharing a common public identity and each performing its own registration to one or more (IMS) core network, to use a common bootstrapping of application security based on the Generic Bootstrapping Architecture, GBA/Generic Authentication Architecture, GAA, infrastructure. Therefore, when using Extensible Markup Language, XML, Configuration Access Protocol, XCAP, or the likes, the multiple service functions in the device use the same authentication method for all XCAP traffic or the likes, such as GBA/GAA but enabling it to use the same key sets (e.g., same B-TID).
    Type: Application
    Filed: February 22, 2017
    Publication date: March 28, 2019
    Inventors: Cristina BADULESCU, Sorin SURDILA, Ralf KELLER
  • Patent number: 10193846
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 29, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Cristina Badulescu, Sorin Surdila, Nancy M. Greene
  • Patent number: 9832234
    Abstract: Network nodes for an access network and a home network of a first UE are described for use when routing an originating call from the first UE in the access network including an IMS network. A network node receives a SIP INVITE message associated with the originating call from the first UE, and including a called party number associated with the call. The network node determines whether the first UE is visiting the access network and whether the called party number is associated with the access network. The network node determines whether the called party number is allowable in the access network. The network node modifies and transmits the received SIP INVITE message towards a home network of the first UE to cause the home network to route the originating call to the access network.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: November 28, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Afshin Abtin, David Castellanos Zamora, Gert Öster, Sorin Surdila
  • Publication number: 20170155612
    Abstract: Methods, servers and mobile stations are provided to allow a sender mobile station which has transmitted a message toward a recipient mobile station via a first protocol to be notified that the message has been delivered to the recipient mobile station via a different protocol. The sender mobile station may be notified that the message was delivered to the recipient mobile station via a different protocol method via a disposition notification message comprising an indication that the message was delivered to the recipient mobile station via a different protocol.
    Type: Application
    Filed: May 19, 2016
    Publication date: June 1, 2017
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Cristina BADULESCU, Sorin SURDILA, Nancy M. GREENE
  • Publication number: 20150156221
    Abstract: Network nodes for an access network and a home network of a first UE are described for use when routing an originating call from the first UE in the access network including an IMS network. A network node receives a SIP INVITE message associated with the originating call from the first UE, and including a called party number associated with the call. It determines whether the first UE is visiting the access network and whether the called party number is associated with the access network. A query to a database is performed, the database comprising a plurality of called party numbers, as to whether the called party number is allowable for use in the access network when the UE is visiting and when the called party number is associated with the access network. Instructing the home network to route the originating call to the access network when a response from the query indicates the called party number is allowable for use in the access network.
    Type: Application
    Filed: June 1, 2012
    Publication date: June 4, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Afshin Abtin, David Castellanos Zamora, Gert Öster, Sorin Surdila
  • Patent number: 7916850
    Abstract: A method of controlling subscriber access to SIP-based services facilitated by an IP Multimedia Subsystem. The method comprises defining at a Serving Call Session Control Function node at least one default screening trigger, and downloading from a Home Subscriber Subsystem, specific screening triggers allocated to at least certain subscribers. At the Serving Call Session Control Function node, at least certain SIP messages originating at subscriber terminals are intercepted and, for each intercepted message and in the absence of a matching specific screening trigger, the default trigger is activated so as to cause the SIP message to be forwarded to a specific SIP application service.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: March 29, 2011
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Nancy Greene, Sorin Surdila, Christophe Gourraud, Peter Postmus
  • Patent number: 7546376
    Abstract: Using session signaling, a multimedia session with plural media data streams is initiated between the mobile terminal and a remote host coupled to a packet data network. The mobile terminal is coupled to the packet data network and to a multimedia system that provides multimedia session services by way of an access point. A plurality of packet access bearers is established between the mobile terminal and the access point to transport corresponding ones of the media data streams between the mobile terminal and the access points. The media binding information is created for each media data stream. The media binding information associates each media data stream in the session to one of the media packet access bearers and is used to provide session-based control of each of the media packet access bearers. Different example techniques for generating/providing the media information are disclosed.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: June 9, 2009
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ina B. Widegren, Johnson Oyama, Brian C. Williams, George Foti, Sorin Surdila
  • Publication number: 20080084867
    Abstract: A method and a server are provided for transferring a multimedia session from a first terminal to a second terminal. The session having been set up, with the help of an application server, between the first terminal and a service network comprising a content server, a user of the first terminal enters a command to pause the session. A session identity is stored in the application server. The user then turns to the second terminal, which obtains the session identity from the application server. The second terminal can then send a request to the content server to resume the session, the session identity being used to specify to the content server which session is to be resumed.
    Type: Application
    Filed: September 25, 2006
    Publication date: April 10, 2008
    Inventors: George Foti, Sorin Surdila
  • Publication number: 20070217394
    Abstract: A method of controlling subscriber access to SIP-based services facilitated by an IP Multimedia Subsystem. The method comprises defining at a Serving Call Session Control Function node at least one default screening trigger, and downloading from a Home Subscriber Subsystem, specific screening triggers allocated to at least certain subscribers. At the Serving Call Session Control Function node, at least certain SIP messages originating at subscriber terminals are intercepted and, for each intercepted message and in the absence of a matching specific screening trigger, the default trigger is activated so as to cause the SIP message to be forwarded to a specific SIP application service.
    Type: Application
    Filed: August 31, 2004
    Publication date: September 20, 2007
    Inventors: Nancy Greene, Sorin Surdila, Christophe Gourraud, Peter Postmus