07-01-2020, 11:35 AM
https://access.atis.org/apps/group_public/documents.php
It looks like the specs aren't public, or don't have WEA in the title - search by name only finds 3 feasibility studies from 2015.
I'd expect it to be using a specific Cell Broadcast Message type - the reception of which is configurable with the AT+CSCB command. Notification and retrieval is similar to SMS messages. The modem probably doesn't handle anything beyond that - at least I haven't found reference to it in the AT command documentation. According to https://forums.ubports.com/topic/3952/no...lang=en-GB there isn't currently support for cell broadcast notification in UBPorts although ofono _might_ be capable of handling the messages. To fully support WEA 3.0 the device has to check its location against the geofence details in the message, and against user settings, so you're probably looking at a higher level than oFono or ModemManager anyway.
It looks like the specs aren't public, or don't have WEA in the title - search by name only finds 3 feasibility studies from 2015.
I'd expect it to be using a specific Cell Broadcast Message type - the reception of which is configurable with the AT+CSCB command. Notification and retrieval is similar to SMS messages. The modem probably doesn't handle anything beyond that - at least I haven't found reference to it in the AT command documentation. According to https://forums.ubports.com/topic/3952/no...lang=en-GB there isn't currently support for cell broadcast notification in UBPorts although ofono _might_ be capable of handling the messages. To fully support WEA 3.0 the device has to check its location against the geofence details in the message, and against user settings, so you're probably looking at a higher level than oFono or ModemManager anyway.
