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PWS Message Identifier

 

Message Identifier is an indicator showing the type of PWS message. It tells on 'Is this ETWS message ? or CMAS ?' or 'How urgent/server it is' etc. SIB messages carrying the PWS message has specific IE called 'messageIdentifier' as shown below to specify this identifier.

 

BCCH-DL-SCH-Message ::= SEQUENCE

  +-message ::= CHOICE [c1]

    +-c1 ::= CHOICE [systemInformation]

      +-systemInformation ::= SEQUENCE

        +-criticalExtensions ::= CHOICE [systemInformation-r8]

          +-systemInformation-r8 ::= SEQUENCE [0]

            +-sib-TypeAndInfo ::= SEQUENCE OF SIZE(1..maxSIB[32]) [1]

            | +- ::= CHOICE [sib12-v920]

            |   +-sib12-v920 ::= SEQUENCE [10]

            |     +-messageIdentifier-r9 ::= BIT STRING SIZE(16) [0001000100010010]

            |     +-serialNumber-r9 ::= BIT STRING SIZE(16) [0011000000000000]

            |     +-warningMessageSegmentType-r9 ::= ENUMERATED [lastSegment]

            |     +-warningMessageSegmentNumber-r9 ::= INTEGER (0..63) [0]

            |     +-warningMessageSegment-r9 ::= OCTET STRING SIZE(ALIGNED)

                                                  [01C576597E2EBBC7F950A8D168341A8D46A3D168341

                                                   A8D46A3D168341A8D46A3D168341A8D46A3D168341A

                                                   8D46A3D168341A8D46A3D168341A8D46A3D168341A8

                                                   D46A3D168341A8D46A3D168341A8D46A3D1000A]

            |     +-dataCodingScheme-r9 ::= OCTET STRING SIZE(1) [01] OPTIONAL:Exist

            |     +-lateNonCriticalExtension ::= OCTET STRING OPTIONAL:Omit

            |     +-EXTENSION ::= SEQUENCE

            +-nonCriticalExtension ::= SEQUENCE OPTIONAL:Omit

 

< Based on 23.041-9.4.1.2.2 Message Identifier >

Message ID (HEX)

Message ID (DEC)

PWS Type

Description

1100

4352

ETWS/CBS

Earthquake Warning Message

1101

4353

ETWS/CBS

Tsunami Warning Message

1102

4354

ETWS/CBS

Earthquake and Tsunami combined Warning Message

1103

4355

ETWS/CBS

Test Message (UE may or may not discard this)

1104

4356

ETWS/CBS

Messages related to other emergency types

1105-1107

4357-4359

ETWS/CBS

Future Extension

1112

4370

CMAS/CBS

Presidential Level Alerts

1113

4371

CMAS/CBS

Extreme Alerts with Severity of Extreme, Urgency of Immediate and Certainty of Observed

1114

4372

CMAS/CBS

Extreme Alerts with Severity of Extreme, Urgency of Immediate and Certainty of Likely

1115

4373

CMAS/CBS

Severe Alerts with Severity of Extreme, Urgency of Immediate and Certainty of Observed

1116

4374

CMAS/CBS

Severe Alerts with Severity of Extreme, Urgency of Immediate and Certainty of Likely

1117

4375

CMAS/CBS

Severe Alerts with Severity of Severe, Urgency of Immediate and Certainty of Observed

1118

4376

CMAS/CBS

Severe Alerts with Severity of Severe, Urgency of Immediate and Certainty of Likely

1119

4377

CMAS/CBS

Severe Alerts with Severity of Severe, Urgency of Expected and Certainty of Observed

111A

4378

CMAS/CBS

Severe Alerts with Severity of Severe, Urgency of Expected and Certainty of Likely

111B

4379

CMAS/CBS

Child Abduction Emergency (or Amber Alert)

111C

4380

CMAS/CBS

Required Monthly Test

111D

4381

CMAS/CBS

CMAS Exercise

111E

4382

CMAS/CBS

Operator defined use

111F-112F

4383-4399

CMAS/CBS

Future Extension