Patents by Inventor Margarita Gayo ARNALDO

Margarita Gayo ARNALDO 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).

  • Method for enabling a calling User Equipment, UE, to retry a Session Initiation Protocol, SIP, call attempt to a called UE, over a Circuit Switched domain
    Patent number: 11522923
    Abstract: A method for enabling a calling User Equipment, UE, to retry a Session Initiation Protocol, SIP, call attempt to a called UE, over a Circuit Switched domain, in a telecommunication network, wherein said called UE has a SIP session established towards said telecommunication network, wherein said method comprises the steps of receiving, by a Proxy Call Session Control Function, P-CSCF, node, an indication that a signalling bearer between said called UE and said telecommunication network is released, wherein said signalling bearer is associated with said SIP session, transmitting, by said P-CSCF node, to a Serving Call Session Control Function, S-CSCF, node triggered by said received indication, a subscribe message for informing said S-CSCF node that said P-CSCF unsubscribes to registration events pertaining to said called UE due to the released signalling bearer such that said S-CSCF node is able to initiate a CS retry when said telecommunication network receives a SIP call attempt from said calling UE to said
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 6, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Beatriz Maroto Gil, Juan De Dios Del Moral Moya, Margarita Gayo Arnaldo, Ignacio Saez Matallana, Emiliano Merino Vazquez
  • A Method for Enabling a Calling User Equipment, UE, to Retry a Session Initiation Protocol, SIP, Call Attempt to a Called UE, Over a Circuit Switched Domain
    Publication number: 20220038509
    Abstract: A method for enabling a calling User Equipment, UE, to retry a Session Initiation Protocol, SIP, call attempt to a called UE, over a Circuit Switched domain, in a telecommunication network, wherein said called UE has a SIP session established towards said telecommunication network, wherein said method comprises the steps of receiving, by a Proxy Call Session Control Function, P-CSCF, node, an indication that a signalling bearer between said called UE and said telecommunication network is released, wherein said signalling bearer is associated with said SIP session, transmitting, by said P-CSCF node, to a Serving Call Session Control Function, S-CSCF, node, triggered by said received indication, a subscribe message for informing said S-CSCF node that said P-CSCF unsubscribes to registration events pertaining to said called UE due to the released signalling bearer such that said S-CSCF node is able to initiate a CS retry when said telecommunication network receives a SIP call attempt from said calling UE to said
    Type: Application
    Filed: November 13, 2018
    Publication date: February 3, 2022
    Inventors: Beatriz Maroto GIL, Juan De Dios Del Moral MOYA, Margarita Gayo ARNALDO, Ignacio Saez MATALLANA, Emiliano Merino VAZQUEZ