| 摘要 |
FIELD: information technologies.SUBSTANCE: method is proposed to transmit a signal broadcasting frame, when: physical level path (PLP) data and preamble data is coded; coded PLP data is compared with the PLP data symbols, and coded preamble data - with symbols of the preamble data; selectively a heading is inserted before symbols of the PEP data; a data fragment is generated, including compared symbols of PLP data, besides, the data fragment is the first or second type of the data fragment, besides, the fist type does not carry the heading, and the second type of the data fragment carries a heading, which alams information of the PLP identifier (PLP ID) and parameters of modulation/coding for the second type of the data fragment; a signal frame is generated on the basis of the data frahment and symbols of the preamble data, it is modulated and transmitted by the method of compaction with orthogonal frequency division (OFDM), besides, symbols of the preamble data include alarm data of the level 1 (L1), including the specified information PLP ID, and symbols of the preamble data include parameters of modulation/coding of the signal for the first type of the data fragment.EFFECT: improved efficiency of data transmission and optimisation of total reliability of a system.12 cl, 84 dwg |
