SIB10: ETWS primary notification

• contains an ETWS primary notification

Signalling radio bearer: N/A
RLC-Mode: TM
Logical channel: BCCH
Direction: E‑UTRAN to UE

Important contents of SystemInformationBlockType10

messageIdentifier
serialNumber
warningType
warningSecurityInfo


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)
warningType	# Identifies the warning type of the ETWS primary notification (earthquake, tsunami, etc.) and # provides information on emergency user alert and UE popup
warningSecurityInfo	# is optional, only applied when security is applied # Provides security information for the ETWS notification