CONCURRENCY-4 Start and Stop simultaneously an alert in local and one additional language in different areas.

Description

Processing a request from the CBE to start alerting in the local and one additional language at the same time in different areas. The areas migh partially overlap in any way, but shall not be identical.

Pre-requisites

• There is no ongoing cell broadcast in the CBC.

Steps to execute

1. CBE sends CAP Alert message with:
   • Two info elements. One containing the message in the local language and another one containing the message in another language.
   • for each info element, the alertinfo.language.code is set to the value of the language used.
   • for each info element, the alertinfo.instruction.text content is in the language selected for this message.
   • The timing information that the CBC uses to calculate the repetition period and the number of repetitions is the same for the messages in the two languages.
   • The alert area of the two info elements can overlap but it shall NOT be the same.
2. When the alerts have been running for 2 periods or more, the CBE sends CAP Cancel message with:
   • a references sub-element inside the alert element that includes the message identifier of the CAP Alert message of step 1 above.

Information flow

Result

Verify that:

1. For each alert inside flow 1,tThe CBC selects all the cells that meet the configured selection criteria for that alert.

2. The CBC sends two WRITE-REPLACE WARNING REQUESTs to each MME involved. 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	Should	TAI of the cells in IE Warning Area List
   Warning Area List	Yes	List of cells that cover the specific alert area
   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	May
   Global eNB ID	No

3. WRITE-REPLACE WARNING RESPONSEs are received to flow 2 from all the MME involved. These responses have the following contents:

   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

4. Handsets in each alert area receive the alert active in that area. In overlapping areas the handsets receive both languages and display them correctly.

5. After receiving the CAP Cancel message from the CBE, the CBC sends two STOP WARNING Requests to each MME involved. 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	Same as in corresponding flow 2
   List of TAIs	May	TAI of the cells in IE Warning Area List
   Warning Area List	May	List of cells that cover the alert area
   Send Stop Warning Indication	May
   Stop All Indication	No

6. For each SWReq received, each MME responds with a STOP WARNING RESPONSE with contents according to the following table.

   Information Element	Included	Value
   Message Identifier	Yes	Same as in corresponding flow 5
   Serial Number	Yes	Same as in flow corresponding 5
   Cause	Yes	Set to value Message accepted
   Criticality Diagnostics	No
   Unknown Tracking Area List	No

7. Broadcasting of the message has stopped in all the cells within the alerting area. Any handset, which had not received the messages, that enters the alert area shall not show any alert.

Iterations

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

Iteration	Alert Type
1	EU-Alert Level 1 \ WEA Presidential
2	EU-Alert Level 2 \ WEA Extreme
3	EU-Alert Level 3 \ WEA Severe
4	EU-Alert & WEA AMBER
5	WEA RMT
6	WEA Exercise
7	WEA Operator defined use
8	EU-Alert Level 4 \ WEA Public Safety
9	WEA State/Local test