Method of data broadcasting with time-frequency interleaving, using frequency reference signals

Abstract

Abstract The field of the invention is that of the broadcasting of digital signals in channels assigned with multiple paths whose characteristics vary over time. <??>The invention relates to a method facilitating, under such conditions of reception, the acquiring of automatic control of frequency. <??>The invention is a method of broadcasting digital data, in particular for high-throughput radio broadcasting to mobiles, of the type ensuring the distributing of the said data in the form of digital elements in the frequency f-time t space and the broadcasting of frames of symbols each consisting of a multiplex of N orthogonal carrier frequencies modulated by a set of the said digital elements, and broadcast simultaneously, the said method ensuring the broadcasting of a frequency synchronising pattern, recurring over time. <??>It applies in particular to COFDM radio broadcasting. <IMAGE>

Inventors

• 👤 Bernard Le Floch
• 👤 Jean-Christophe Rault
• 👤 Daniel Pommier
• 👤 Damien Castelain

Bibliographic Details