Patents by Inventor Margaretha Forsgren

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).

  • Apparatus and method for transmitting signals over a physical random access channel
    Patent number: 10736150
    Abstract: A method of transmitting a signal over a physical random access channel, wherein the signal comprises a plurality of symbols forming a symbol group. The method comprises applying scrambling to a plurality of symbols within the symbol group.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Margaretha Forsgren, Fredrik Huss, Olof Liberg, Yi-Pin Eric Wang
  • Apparatus and Method for Transmitting Signals over a Physical Random Access Channel
    Publication number: 20200037364
    Abstract: A method of transmitting a signal over a physical random access channel, wherein the signal comprises a plurality of symbols forming a symbol group. The method comprises applying scrambling to a plurality of symbols within the symbol group.
    Type: Application
    Filed: May 2, 2018
    Publication date: January 30, 2020
    Inventors: Xingqin Lin, Margaretha Forsgren, Fredrik Huss, Olof Liberg, Yi-Pin Eric Wang
  • Method and arrangement for positioning in a wireless communications system
    Patent number: 10212686
    Abstract: Systems and methods provide for an increase in hearability by a user equipment (UE, 116). This increase in hearability can be used to improve positioning results. Two different types of positioning subframes can be transmitted by cells in a radio access network (RAN) to improve hearability: measurement subframes and low-interference subframes. The selection of which type of positioning subframe to transmit can be determined algorithmically by the transmitting entity.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: February 19, 2019
    Assignee: Lenovo Innovations Limited (Hong Kong)
    Inventors: Daniel Larsson, Peter Bengtsson, Margaretha Forsgren, Oskar Mauritz, Olof Sjöbergh
  • 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
  • Method and Arrangement for Positioning in a Wireless Communications System
    Publication number: 20120002609
    Abstract: Systems and methods provide for an increase in hearability by a user equipment (UE, 116). This increase in hearability can be used to improve positioning results. Two different types of positioning subframes can be transmitted by cells in a radio access network (RAN) to improve hearability: measurement subframes and low-interference subframes. The selection of which type of positioning subframe to transmit can be determined algorithmically by the transmitting entity.
    Type: Application
    Filed: June 25, 2009
    Publication date: January 5, 2012
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Daniel Larsson, Oskar Mauritz, Peter Bengtsson, Olof Sjöbergh, Margaretha Forsgren