Measurements on the MPEG-2 Transport Stream - Digital Video and Audio Broadcasting Technology - page 192

11.13 Monitoring the NIT, SDT, EIT, RST and TDT/TOT
Tables

In addition to the PSI tables of the MPEG-2 standard, the DVB Group has
specified the NIT, SDT/BAT, EIT, RST and TDT/TOT SI tables.
The DVB Measurement Group recognized that these tables needed to be
monitored for presence, repetition rate and correct identifiability. This does
not include checking the consistency, i.e. the content of the tables. A SI ta-
ble is identified by means of the PID and its table ID. This is because there
are some tables which have the same PID and can thus only be recognized
from the table ID (SDT/BAT and TDT/TOT).

Table 11.3. SI tables

Service
Information

PID [hex] Table_id [hex] Max. Interval

[sec]

NIT 0x0010 0x40, 0x41, 0x42 10

SDT 0x0011 0x42, 0x46 2

BAT 0x0011 0x4A 10

EIT 0x0012 0x4E to 0x4F,

0x50 to 0x6F

2

RST 0x0013 0x71 -

TDT 0x0014 0x70 30

TOT 0x0014 0x73 30

ST 0x0010 to 0x72 -

0x0013

A NIT_error, SDT_error, EIT_error, RST_error or TDT_error occurs
when

• a corresponding packet is contained in the TS but has the wrong

table index,

• the time interval between two sections of these SI tables is too

great or too small.

11.14 Undefined PIDs (Unreferenced_PID)

All PIDs contained in the transport steam are conveyed to the MPEG-2 de-
coder via the PAT and the PMTs. There are also the PSI/SI tables. How-
ever, it is perfectly possible that the transport stream contains TS packets