Apparat til at sende og modtage et signal og fremgangsmåde til at sende og modtage et signal

摘要

The present invention relates to a method and corresponding apparatus of transmitting and receiving broadcast signals. One aspect of the present invention relates to an efficient layer 1 (L1) signalling which includes layer 1 Time Interleaving mode information indicating the depth of time interleaving for the preamble data, the time-interleaving depth corresponding to the number of OFDM symbols for the time-interleaving.