Inventor · Stockholm, SE

David Hammarwall

89Patents
9h-index
31Co-inventors
74Inventor score

Filing activity: May 7, 2008 → Aug 25, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US8494033B2 Methods providing precoder feedback using multiple precoder indices and related communications devices and systems Electricity 31 Active
US9337970B2 Configuration of coordinated multipoint transmission hypotheses for channel state information reporting Electricity 19 Active
US8446886B2 Antenna port mapping for demodulation reference signals Electricity 15 Active
US8472547B2 Parameterized codebook with subset restrictions for use with precoding MIMO transmissions Electricity 13 Active
US8537924B2 Open loop precoder cycling in MIMO communications Electricity 12 Active
US9236916B2 Node and method for generating beamformed for downlink communications Electricity 11 Active
US9385852B2 Methods and arrangements for CSI reporting Electricity 10 Active
US11563548B2 Methods and arrangements for CSI reporting Electricity 9 Active
US8325624B2 Link quality estimation method and apparatus in a telecommunication system Electricity 9 Active
US8358979B2 Method and apparatus for measuring interference in a telecommunications system Electricity 8 Active
US8831125B2 Data transmission in a multiple antenna system Electricity 7 Active
US8705574B2 System and method for allocating transmission resources Electricity 6 Active
US10014920B2 Method in a network node, method in a user equipment, a network node and a user equipment for selecting a beam candidate Electricity 6 Active
US8605809B2 Method and apparatus for using factorized precoding Electricity 6 Active
US8798550B2 Methods and arrangements for CSI reporting Electricity 6 Active
US8767681B2 Parameterized codebook subsets for use with precoding MIMO transmissions Electricity 6 Active
US9331386B2 Beamformed downlink communications for a multiple antenna system Electricity 6 Active
US8804867B2 Method and apparatus for using factorized precoding Electricity 5 Active
US9509440B2 Method and radio node for enabling use of high order modulation in a radio communication with a user equipment Emerging Cross-Sectional Technologies 5 Active
US9532333B2 Method and system for transmission of muting configurations Electricity 5 Active
US8842773B2 Method and apparatus for using factorized precoding Electricity 5 Active
US9179332B2 Artificial interference injection for channel state information reporting Electricity 4 Active
US8582627B2 Precode structure for MIMO precoding Electricity 4 Active
US9609637B2 Override of multi-TTI scheduling messages Electricity 4 Active
US9831982B2 Method and radio node for enabling use of high order modulation in a radio communication with a user equipment Emerging Cross-Sectional Technologies 4 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.