Patent ID: 8559989

Claim:
A method comprising: receiving, by equipment, a first message indicative of an emergency alert broadcast message to be broadcast, wherein said first message comprises a payload and at least one credential; rejecting the first message when validating each credential fails; when validating each credential is successful, sending, from the equipment, a second message comprising the payload and an indication that the emergency alert broadcast message should be broadcast to at least one broadcast tower within a first range of a first location; receiving a third message indicative of a second emergency alert broadcast message to be broadcast, wherein: said third message comprises a second payload and at least one second credential and the first range; and a location of said third message overlaps the first range and the first location; rejecting the third message if validating each of the at least one second credential fails; and sending a fourth message comprising the second payload and an indication that the second emergency alert broadcast message should be broadcast to at least one broadcast tower, wherein said broadcast tower did not receive the first message.