MPTP | MPTP commands 38
Command format
Length: 25…29 characters
Command*
Trigger type
Service state
Interval(Limit)
Unused
(Allowed value)
Stopping
date and time
(Trigger special data)
4 1 1 1 1 1 1…5 1 1 1 12
?TRG _ 3 _ 1 _ 30 _ 0 _ 051220002015
*) cf. section 3.1 for description of this field.
The special fields of the command are as follows:
Field Description Range
Trigger type Trigger type of complex tracking request
message, as defined in section 4.2.1.4. In
this case, the trigger type number is 3.
0…9
Service state Activity of tracking process. Value 1 should
be used; otherwise the process will not be
activated.
0…1
Interval Time between sending of tracking reports, in
minutes.
1…65534 (min)
Unused This field has been reserved for future use. For
now, value 0 should be used.
0
Stopping
date and time
Stop trigger condition: the tracking process is
stopped when the date and time in this field
has passed.
Time needs to be given in 24-hour format.
UTC (Universal Coordinated Time, or
Greenwich Mean Time) should be used.
date and time in
format DDMM
YYYYhhmm
4.2.1.4.5. Trigger type 7: endless tracking
CC → MTT
A type 7 tracking process sends reports at regular intervals. It does not ever stop automatically, but as
any other process, can be deactivated with an MPTP command. Such a process can be created and
activated by a Control Centre, by sending a complex tracking request command with trigger type 7.
The tracking process has the following properties:
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