START-6 Global Alert in local language. With indication.

Description

Cell broadcast of an alert in the local language.
The alert area extends the whole LTE coverage area of the MNO.
The MMEs are requested to report updates for the alert.

Pre-requisites

• If indication is not requested via the CBE - CBC interface, then configure the CBC to request indications from the MMEs.
• The alert area extends the whole coverage area of the network.
• There is no ongoing cell broadcast in the network.
• The message is in the local language.
• Alert timing defined so it is easy to verify that the value of the parameters Number of broadcast and broadcast period that the CBC sends to the MMEs.

Steps to execute

1. CBE sends CAP Alert message with:
   • A single info element. I.e. only one message in one language.
   • alertinfo.language.code set to the value of the local language (e.g. sl-SI for Slovenian).
   • alertinfo.instruction.text content of the alert message in local language. The message of this message should be such that it needs four pages when encoded.
   • Time information that allows the CBC to calculate the repetition period and the number of repetitions.
   • Alert area is either no defined or defined to cover the whole region covered by the whole LTE network under test.
   • If indication is requested via the CBE - CBC interface, then include the parameters for requesting indication.

Information flow

Result

Verify that:

1. The CBC sends one WRITE-REPLACE WARNING REQUEST to each of the MMEs to which it is connected. Presence of parameters in this message shall be as shown in the following table:

   Information Element	Included	Value
   Message Identifier	Yes	for current iteration
   Serial Number	Yes
   List of TAIs	No
   Warning Area List	No
   Repetition Period	Yes	According to the timing requested in flow 1.
   Extended Repetition Period	No
   Number of Broadcast Requested	Yes	According to the timing requested in flow 1.
   Warning Type	No
   Warning Security Information	No
   Data Coding Scheme	Yes	Set for local language according to 3GPP TS 23.038
   Warning Message Contents	Yes	Alert message encoded according to the value of DCS above
   Concurrent Warning Message Indicator	Yes	true
   Send Write-Replace-Warning-Indication	Yes	true
   Global eNB ID	No

2. Each MME responds with a WRITE-REPLACE WARNING RESPONSE message with content according to the following table.

   Information Element	Included	Value
   Message Identifier	Yes	Same as in flow 2
   Serial Number	Yes	Same as in flow 2
   Cause	Yes	Set to value Message accepted
   Criticality Diagnostics	No
   Unknown Tracking Area List	No

3. Each MME sends one or more WRITE-REPLACE WARNING INDICATION messages with content according to the following table.

   Information Element	Included	Value
   Message Identifier	Yes	Same as in flow 2
   Serial Number	Yes	Same as in flow 2
   Broadcast Scheduled Area List	Yes	List of cells for which broadcast is active
   Broadcast Empty Area List	May	List of cells for which broadcast failed

4. Broadcast is active in all the eNBs.

5. Report outcome to the CBE, if the CBE-CBC interface supports it.

6. Handsets in the alert area receive and display it correctly.

Iterations

This TC should be executed for the alert types in the following table that are applicable in the country in which the CBC is deployed:

Iteration	Alert Type	Message identifier
1	EU-Alert Level 1 \ WEA Presidential	4370 (0x1112)
2	EU-Alert Level 2 \ WEA Extreme	[4371, 4372] ([0x1113, 0x1114])
3	EU-Alert Level 3 \ WEA Severe	[4373 ... 4378] ([0x1115 ... 0x111A)
4	EU-Alert & WEA AMBER	4379 (0x111B)
5	WEA RMT	4380 (0x111C)
6	WEA Exercise	4381 (0x111D)
7	WEA Operator defined use	4382 (0x111E)
8	EU-Alert Level 4 \ WEA Public Safety	4396 (0x112C)
9	WEA State/Local test	4398 (0x112E)
10	EU-Info	6400 (0x1900)