Type 0 Extension 14 - mattpascoe135/dab GitHub Wiki

#Extension 14 - FEC sub-channel organization The Extension 14 of FIG type 0 (FIG 0/14) defines the additional Forward Error Correcting scheme applied to sub-channels carrying packet mode service components. The structure is shown in figure 23.

The following definitions apply:

###SubChId (Sub-channel Identifier): this 6-bit field, coded as an unsigned binary number, shall identify a sub-channel. FEC Scheme: this 2-bit field shall indicate the Forward Error Correction scheme in use, as follows:

b1 - b0

0 0: no FEC scheme applied;

0 1: FEC scheme applied according to clause 5.3.5;

1 0: reserved for future definition;

1 1: reserved for future definition.

Multiplexes with sub-channels employing additional Forward Error Correction (FEC) for packet mode service components shall signal FIG 0/14 for all sub-channels carrying packet mode service components to indicate which FEC scheme (if any) is applied. It is recommended that FIG 0/14 is included in the MCI signalling of sub-channels carrying packet mode service components even if none are equipped with additional Forward Error Correction (FEC).