RECOMMENDATION ITU-R BT.1126 - Data transmission protocols and transmission control scheme for data broadcasting ...
ANNEX 1 - Data transmission protocols of layers 1 to 4 of the data channel
1 Introduction
2 Layer 1 (physical)
3 Link (layer 2)
    3.1 Packet structure
    3.2 Bit assignment of packet in the data channel
    3.3 Error correction code for data block
4 Network (layer 3)
    4.1 Structure of packet data
    4.2 Packet structure 1
    4.3 Packet prefix (PF)
        4.3.1 Logical channel identification 1 (LCI1) and logical channel identification 2 (LCI2)
        4.3.2 Scramble control (SCC)
        4.3.3 Continuity index (CI)
        4.3.4 Data transmission control flag (DTC)
5 Transport (layer 4)
    5.1 DG structure 1
    5.2 Data group of DG structure 2
ANNEX 2 - Transmission control scheme with transmission control data
1 Introduction
2 Transmission control data (TCD)
3 Network identification
    3.1 Data structure of transmission control data TDS
    3.2 Station identification (ST)
    3.3 Transmission channel (CH)
4 Service broadcaster identification
    4.1 Service broadcaster (PV)
    4.2 Number of programme (NP)
5 Programme identification
    5.1 Service number (SV)
    5.2 Programme number (PR)
    5.3 Number of service components (NM)
6 Service component identification
    6.1 Media identification (MI)
    6.2 Logical channel identification 1 (LCD1) and logical channel identification 2 (LCD2)
    6.3 Data structure (DS)
7 Transmission protocol of the TCD
    7.1 Logical channel for TCD
ANNEX 3 - Conditional access system of data channel
1 Introduction
2 Scrambling
    2.1 Scope of scrambling
    2.2 Control of scrambling
        2.2.1 Scrambling identification flag
        2.2.2 Scramble timing flag
3 Access control messages (ACM)
    3.1 Transmission of ACM
    3.2 Logical channel for ACM
    3.3 Configuration of ACM