RCS User Manual
104
T2-MI Alarms
Two of the various packet types are mandatory for
each T2 frame:
1016 (L1-current data), 2016 (DVB-T2 Timestamp).
If L1 repetition, in-band signalling (IBS) or Time-
Frequency-Slicing (TFS) is indicated in the L1-
current
data, an L1-future packet (1116) should also be
present.
If any of these packet_type is not present in each T2
frame, a T2MI_packet_type_error_1 is signalled.
The number of BB-frames (packet_type 0016)
relating to a PLP in a given T2 frame should match
the value of PLP_NUM_BLOCKS signalled in the
dynamic signalling of both the L1-current and L1-
future (when present).
The signalled values of frame_idx and
superframe_idx for BB-frame packets should be
consistent with the time interleaver parameters
specified in the configurable signalling of the L1-
current.
This error indicates a discontinuity of T2-MI packets
The T2MI_transmission_order_error is signalled if
the packet_types are in a wrong ordering and
position inside a T2 frame.
The T2MI_DVB-T2_Timestamp_error signals a
wrong timestamp inside a superframe
Two timestamps difference is not equal to the
duration of a superframe
The number of symbols in a frame is longer than
allowed
Quality of Service Alarms
Service Availability Error
Service Availability Error Ratio
Service Degradation Error
Service Degradation Error Ratio
Service Impairments Error
Service Impairments Error Ratio
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