SIB11: ETWS secondary notification
Signalling radio bearer: N/A - contains an ETWS secondary notification
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE
Important contents of SystemInformationBlockType11
messageIdentifier
serialNumber
warningMessageSegmentType
warningMessageSegmentNumber
warningMessageSegment
dataCodingScheme
Field Descriptions:
| messageIdentifier | Identifies the source and type of ETWS notification (earthquake, tsunami warning, any emergency or test message) |
| serialNumber | Identifies variations of an ETWS notification. -uses various mechanisms to alert the user (display message, play a tone or vibrate, location where the message is applicable, also contains an update number which specifies whether a change is in the message content or not) |
| warningMessageSegmentType
[last/not last]
| Indicates whether the included ETWS warning message segment is the last segment of the complete segment or not |
| warningMessageSegmentNumber | # allows oedering of the message segments # Segment number of the ETWS warning message segment contained in the SIB. A segment number of zero corresponds to the first segment, one corresponds to the second segment, and so on |
| warningMessageSegment | carries actual segment of the message |
| dataCodingScheme | Identifies the alphabet/coding and the language applied variations of an ETWS notification |
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