Patents by Inventor Stefan Schiffermuller

Stefan Schiffermuller 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).

  • Multi-cell channel estimation in 3G-LTE based virtual pilot sequences
    Patent number: 8665910
    Abstract: A concept for estimating interfering channels in a multicellular radio communication system including a plurality of base stations and at least one mobile station is suggest, wherein pilot signals are transmitted from the base stations to at least a mobile station, additional pilot sequences are generated, a pattern is provided which defines a rule for distributing the pilot sequences to the base stations, the pilot sequences are modulated and superposed onto said pilot signals, and a pilot signal received at a mobile station is used for estimating interferences in the communication channel from the base station which transmits the pilot signal.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: March 4, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Thomas Haustein, Volker Jungnickel, Malte Schellmann, Stefan Schiffermüller, Lars Thiele, Thomas Wirth, Wolfgang Zirwas
  • Multi-Cell Channel Estimation in 3G-LTE Based Virtual Pilot Sequences
    Publication number: 20110122789
    Abstract: A concept for estimating interfering channels in a multicellular radio communication system including a plurality of base stations and at least a mobile station is suggest, wherein pilot signals are transmitted from the base stations to at least a mobile station, additional pilot sequences are generated, a pattern is provided which defines a rule for distributing said pilot sequences to the base stations, said pilot sequences are modulated and superposed onto said pilot signals, and a pilot signal received at a mobile station is used for estimating interferences in the communication channel from the base station which transmits said pilot signal.
    Type: Application
    Filed: May 9, 2008
    Publication date: May 26, 2011
    Inventors: Thomas Haustein, Volker Jungnickel, Malte Schellmann, Stefan Schiffermüller, Lars Thiele, Thomas Wirth, Wolfgang Zirwas
  • Method and apparatus for positioning pilot in an OFDMA mobile communication system
    Patent number: 7869341
    Abstract: An apparatus and method for positioning a pilot in a transmitter for an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system. In the apparatus, a consecutive block assignment determiner determines whether it will assign a consecutive block or a single block in a frequency axis or a time axis. A pilot tone pattern generator determines a pilot pattern in the block by applying a predetermined rule according to the determination result. A pilot tone inserter positions pilots in the block based on the determined pilot pattern.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-Ju Lim, Jae-Chon Yu, Hwan Joon Kwon, Dong-Hee Kim, Yu-Chul Kim, Jin-Kyu Han, Stefan Schiffermuller, Aydin Sezgin, Anastasios Giovanidis
  • METHOD AND APPARATUS FOR POSITIONING PILOT IN AN OFDMA MOBILE COMMUNICATION SYSTEM
    Publication number: 20080068980
    Abstract: An apparatus and method for positioning a pilot in a transmitter for an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system. In the apparatus, a consecutive block assignment determiner determines whether it will assign a consecutive block or a single block in a frequency axis or a time axis. A pilot tone pattern generator determines a pilot pattern in the block by applying a predetermined rule according to the determination result. A pilot tone inserter positions pilots in the block based on the determined pilot pattern.
    Type: Application
    Filed: July 26, 2007
    Publication date: March 20, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeon-Ju Lim, Jae-Chon Yu, Hwan-Joon Kwon, Dong-Hee Kim, Yu-Chul Kim, Jin-Kyu Han, Stefan Schiffermuller, Sezgin Aydin, Giovanidis Anastasios