Patents by Inventor Ioanna Pappa

Ioanna Pappa 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: 20160309389
    Abstract: Embodiments presented herein relate to bearer handling, and particularly to a method, a network node, a computer program, and a computer program product for flexible bearer handling in a communications network. Packet data convergence protocol (PDCP) protocol data units (PDUs) are acquired. Individual PDCP PDUs are encapsulated into individual frames at at least one protocol layer above a bottom-most protocol layer. The individual frames are switched towards a packet switched network.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 20, 2016
    Inventors: Kim Laraqui, Ioanna Pappa, Tomas Thyni
  • Publication number: 20150373710
    Abstract: Method and residential control node (206) of enabling encrypted residential communication of user data between a first wireless communication device (202) and a second wireless communication device (204). The method comprises receiving (3:3) a radio bearer mapping from a communication network node (220, 700), establishing (3:4) a connection with the first wireless communication device (202), in accordance with the radio bearer mapping, and establishing (3:5) a connection with the second wireless communication device (204), in accordance with the radio bearer mapping. Furthermore, the method comprises obtaining (3:7) a first key which is based on a key of the first wireless communication device (202), from the communication network node (220, 700), and obtaining (3:7) a second key which is based on a key of the second wireless communication device (204).
    Type: Application
    Filed: April 30, 2014
    Publication date: December 24, 2015
    Inventors: Kim Laraqui, Karl Norrman, Ioanna Pappa
  • Patent number: 9009017
    Abstract: Embodiments of the present invention relate to an arrangement for analyzing transmission line properties. Measurement data providing means provide data of a first frequency dependent line property, line property calculation arrangement with model handling means, a Hubert transform handler and line property determination means calculate said first property based on model parameters, line resistance at 0 frequency, roc, a cut-off frequency, v, a line capacitance C? and a line inductance L?H. The line model handling means calculates the line inductance L(f) via a Hubert transform of a function of Q(f/v), wherein the function Q(f/v) relates the line resistance R(f) to roc as R(f)=roc·Q(f/v). The Hilbert transform values are calculated using a parameterized closed form expression for the Hubert transform or they are tabulated.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: April 14, 2015
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Antoni Fertner, Fredrik Lindqvist, Ioanna Pappa, Klas Ericson, Miguel Berg, Per Ola Börjesson, Stefan Höst
  • Publication number: 20120215503
    Abstract: Embodiments of the present invention relate to an arrangement for analyzing transmission line properties. Measurement data providing means provide data of a first frequency dependent line property, line property calculation arrangement with model handling means, a Hubert transform handler and line property determination means calculate said first property based on model parameters, line resistance at 0 frequency, roc r cut-off frequency, v, line capacitance C?r and line inductance ??. The line model handling means calculates the line inductance L(J) via a Hubert transform of Q(f/v)r relating line resistance R(J) to roc such as formula (I). The Hilbert transform values are calculated using a parameterized closed form expression for the Hubert transform or they are tabulated.
    Type: Application
    Filed: January 8, 2010
    Publication date: August 23, 2012
    Inventors: Antoni Fertner, Fredrik Lindqvist, Ioanna Pappa, Klas Ericson, Miguel Berg, Per Ola Börjesson, Stefan Höst