US 11,659,373 B2
Wireless emergency alert message failure notification and targeted retry
Sreejith Menon, Herndon, VA (US)
Assigned to AT&T Intellectual Property I, L.P., Atlanta, GA (US)
Filed by AT&T Intellectual Property I, L.P., Atlanta, GA (US)
Filed on Oct. 30, 2020, as Appl. No. 17/85,730.
Prior Publication US 2022/0141635 A1, May 5, 2022
Int. Cl. H04W 4/90 (2018.01); H04W 4/06 (2009.01); H04W 4/12 (2009.01); H04W 84/04 (2009.01)
CPC H04W 4/90 (2018.02) [H04W 4/06 (2013.01); H04W 4/12 (2013.01); H04W 84/042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a processing system of a cellular network including at least one processor, a request to broadcast a wireless emergency alert message, wherein the request comprises an alert area and a message content;
broadcasting, by the processing system, the wireless emergency alert message in the alert area, wherein the wireless emergency alert message includes the message content;
obtaining, by the processing system, a notification from a first endpoint device that the first endpoint device did not receive the wireless emergency alert message; and
transmitting, by the processing system in response to the obtaining the notification that the first endpoint device did not receive the wireless emergency alert message, a unicast message comprising the message content to the first endpoint device.