Patents by Inventor Eva Margaretha Forsgren

Eva Margaretha Forsgren 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).

  • Frequency offset estimation between a mobile communication terminal and a network node
    Patent number: 9532326
    Abstract: There is disclosed a method for estimating a frequency offset between a mobile communication terminal and a network node. The method is based on processing, by means of a matched filter, a preamble sequence for random access received on a physical random access channel, PRACH. Thus the method is preferably applied in the Evolved Universal Terrestrial Radio Access (E-UTRA) network. In the matched filtered preamble sequence two peaks are determined and the frequency offset is based on a ratio of the two peaks. A corresponding network node, computer program and computer program product are also presented. The network node is preferably performed in a network node of the type eNodeB, E-UTRAN NodeB, also known as Evolved NodeB.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: December 27, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Eva Margaretha Forsgren, Oskar Mauritz
  • Frequency Offset Estimation Between a Mobile Communication Terminal and a Network Node
    Publication number: 20150139098
    Abstract: There is disclosed a method for estimating a frequency offset between a mobile communication terminal and a network node. The method is based on processing, by means of a matched filter, a preamble sequence for random access received on a physical random access channel, PRACH. Thus the method is preferably applied in the Evolved Universal Terrestrial Radio Access (E-UTRA) network. In the matched filtered preamble sequence two peaks are determined and the frequency offset is based on a ratio of the two peaks. A corresponding network node, computer program and computer program product are also presented. The network node is preferably performed in a network node of the type eNodeB, E-UTRAN NodeB, also known as Evolved NodeB.
    Type: Application
    Filed: May 14, 2012
    Publication date: May 21, 2015
    Applicant: TELEFONAKTIEBOLGET L M ERICSSON (PUBL)
    Inventors: Eva Margaretha Forsgren, Oskar Mauritz