Patents by Inventor Jukka Tormalehto

Jukka Tormalehto 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 and apparatus to detect random access channel preamble
    Patent number: 8059765
    Abstract: A method (and operation of a computer program and an apparatus) includes receiving a signal over a wireless channel; correlating the received signal with a reference sequence and providing a correlation output; processing the correlation output to detect a presence of a first predetermined preamble sequence using a main correlation peak and two first order frequency shift peaks and nulling second and higher order frequency shift peaks from the correlation output prior to further processing the correlation output to detect a presence of a second predetermined preamble sequence.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: November 15, 2011
    Assignee: Nokia Siemens Networks Oy
    Inventor: Jukka Törmälehto
  • Method and apparatus to detect random access channel preamble
    Publication number: 20090213968
    Abstract: A method (and operation of a computer program) includes receiving a signal over a wireless channel; correlating the received signal with a reference sequence and providing a correlation output; processing the correlation output to detect a presence of a first predetermined preamble sequence using a main correlation peak and two first order frequency shift peaks and nulling second and higher order frequency shift peaks from the correlation output prior to further processing the correlation output to detect a presence of a second predetermined preamble sequence. Apparatus that embody the method are also disclosed.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 27, 2009
    Inventor: Jukka Tormalehto