Patents Assigned to Unwired Patent, LLC
  • Publication number: 20140141790
    Abstract: The present invention relates to methods and arrangements for reducing the time delay associated with the initialisation of a data transfer in a Universal Mobile Telecommunications Systems (UMTS) terrestrial radio access network (UTRAN). A Radio Network Controller (RNC) initiates a data transfer by transmitting a downlink paging message to a User Equipment (UE), wherein the UE is capable of being in the states URA PCH, CELL PCH or CELL DCH. The paging message comprises information for transferring the UE from the URA PCH or the CELL PCH state directly to the CELL DCH state by means of delay reducing information indicated in the paging message.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: UNWIRED PATENT, LLC
    Inventors: Johan Torsner, Joakim Bergstrom
  • Patent number: 8599948
    Abstract: The present invention relates to a method and arrangement for symbol mapping in wireless communication systems utilizing OFDM transmission technology in combination with advanced coding schemes. In the method according to the present invention, adapted for use in a wireless communication system utilizing OFDM transmission technology, an OFDM grid is defined by at least a first dimension and a second dimensions from the dimensions time, frequency or space. The advanced coding scheme, for example Alamouti coding, outputs symbols that are related via the coding. At least some of the symbols, defining a code related symbol group should experience identical, or at least very similar, radio channels. According to one embodiment of the present invention, symbols from the same code related symbol group is placed as close together in the OFDM grid as possible.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 3, 2013
    Assignee: Unwired Patent, LLC
    Inventor: Jonas Karlsson