scope:

The present document describes the modulation, channel coding and signalling protocol system (denoted the "System", "DVB Carrier Identification" or "DVB-CID" for the purposes of the present document) intended for the identification of the host carrier it belongs to.

The system uses Binary Phase Shift Keying (BPSK) spread spectrum modulation, differential encoding, scrambling and a concatenated error protection strategy based on repetition, cyclic redundancy check (CRC) and Bose and Ray- Chaudhuri (BCH) codes.

The present document:

• Gives a general description of the system for the transmission of the identification information of a host carrier.

• Specifies the digitally modulated signal in order to allow compatibility between pieces of equipment developed by different manufacturers. This is achieved by describing in detail the signal processing principles at the modulator side, while the processing at the receive side is left open to different implementation solutions.

• Identifies the global performance requirements and features of the System, in order to meet the quality targets for identification of the host carrier.

The system has been optimized for satellite applications including DVB-S, DVB-DSNG and DVB-S2, but can be applied to any continuous transmission by satellite. The system is to be used when no other suitable means of identifying the transmitter are available; such means include but are not limited to remote-control facilities that can switch the transmitter on and off.