NOTE 4: Only every second frame AFS is possible;

SDC data size is increased.

EXAMPLE 5: Change of repetition rate of SDC block (without reconfiguration) with AFS index = 1.

Figure G.6: Example 5

NOTE 5: First AFS possible after n frames after tuning;

Flexible SDC data size.

For other values of AFS index, similar schemes can be applied.

G.4 Character sets

DRM uses UTF-8 character coding, and so allows all known characters to be broadcast. However, receivers may be produced that do not support all characters. In this case the following behaviour is recommended:

•For the label (sent using SDC data entity type 1): if the receiver character set does not support most of the characters being broadcast (for example, the label is composed of Hindi characters, but the receiver only supports European characters) then the receiver could display the Service identifier and/or frequency instead.

•For the text message (carried in the MSC): if the receiver character set does not support all of the characters being broadcast then the receiver should attempt to determine if any portion of the message can be displayed. This would be, for example, if at least 10 consecutive characters could be displayed.

ETSI

Annex H (informative):

Service capacity and bit rates

The orders of magnitude of the available total bit rates, which depend upon the signal bandwidth, the protection mode, and the error correction code rates are given below.

For robustness modes A, B C and D tables H.1 and H.2 apply:

Table H.1: 64-QAM modulation, coding rate of 0,6 for the MSC (EEP SM)

Table H.2: 16-QAM modulation, coding rate of 0,62 for the MSC (EEP SM)

Minimum absolute (R = 0,50, 16-QAM, robustness mode B, 4,5 kHz) 4,8 kbit/s.

Maximum absolute (R = 0,78, 64-QAM, robustness mode A, 20 kHz) 72 kbit/s.

For robustness mode E and spectrum occupancy 0, the table H.3 applies for the MSC (EEP SM):

Table H.3

ETSI