Emergency alert
First Claim
Patent Images
1. A method of providing an emergency alert to a terminal of a wireless area network, the network comprising an IEEE 802 type network, high performance radio wireless local area network, or high performance metropolitan area network, communicating with all wireless enabled terminals using an Internet Protocol, the method comprising:
- sending an initial signaling frame for an unsolicited broadcast message from a network edge device of the wireless area network to wireless enabled terminals, the unsolicited broadcast message being only a trigger including an indicator flag, in a respective one field of the signaling frame, being indicative that an emergency alert is waiting;
receiving at least the indicator flag in the signaling frame at a wireless enabled terminal; and
sending, on a radio resource, a request message frame by the wireless enabled terminal to the wireless area network for the emergency alert to be downloaded to the wireless enabled terminal, said received indicator flag at the terminal acting as the trigger for the request message frame to be sent from the wireless enabled terminal to the wireless area network.
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Abstract
A wireless area network terminal receives an unsolicited broadcast from a network to all wireless area network terminals in a predetermined category. The unsolicited broadcast includes an indicator that an emergency alert is waiting. The indicator triggers a request to be sent from the terminal to the network to allow the alert to be downloaded to the terminal.
12 Citations
38 Claims
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1. A method of providing an emergency alert to a terminal of a wireless area network, the network comprising an IEEE 802 type network, high performance radio wireless local area network, or high performance metropolitan area network, communicating with all wireless enabled terminals using an Internet Protocol, the method comprising:
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sending an initial signaling frame for an unsolicited broadcast message from a network edge device of the wireless area network to wireless enabled terminals, the unsolicited broadcast message being only a trigger including an indicator flag, in a respective one field of the signaling frame, being indicative that an emergency alert is waiting; receiving at least the indicator flag in the signaling frame at a wireless enabled terminal; and sending, on a radio resource, a request message frame by the wireless enabled terminal to the wireless area network for the emergency alert to be downloaded to the wireless enabled terminal, said received indicator flag at the terminal acting as the trigger for the request message frame to be sent from the wireless enabled terminal to the wireless area network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless communication system comprising:
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a wireless area network communicating with all terminals using an Internet Protocol, said wireless area network being an IEEE 802 type network, high performance radio wireless local area network, or high performance metropolitan area network; a wireless area network entity, connected to the wireless area network, sending an emergency alert; a network edge device, connected to the wireless area network, sending an initial signaling frame of an unsolicited broadcast message to wireless enabled terminals, the unsolicited broadcast message being only a trigger including an indicator flag, in a respective one field of the signaling frame, being indicative that an emergency alert is waiting; and at least one of the wireless enabled terminals sending, on a radio resource, a request message frame to said network edge device for the emergency alert information to be downloaded to said terminal, the indicator flag, received by the wireless enabled terminal, acting as the trigger for the request message frame to be sent from the wireless enabled terminal to the wireless area network. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A network edge device for providing an emergency alert to a terminal of a wireless area network which is part of a wireless communication system, the wireless area network communicating with terminals using an Internet Protocol and being an IEEE 802 type network, a high performance radio wireless local area network, or a high performance metropolitan area network, said network edge device being part of the wireless communication system and constructed to:
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send an initial signaling frame of an unsolicited broadcast message to all in-range terminals, said unsolicited broadcast message being only a trigger including an indicator flag, in a respective one field of the signaling frame, being indicative that an emergency alert is waiting; and receive a request message frame sent by the terminal to the wireless area network for the emergency alert to be downloaded to the terminal, said indicator flag being received at the terminal acting as the trigger for the request message frame to be sent from the terminal to the wireless area network. - View Dependent Claims (37)
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38. A terminal of a wireless area network which is part of a wireless communication system, the wireless area network communicating with the terminal using an Internet Protocol and being an IEEE 802 type network, high performance radio wireless local area network, or high performance metropolitan area network, said terminal being part of the wireless communication system and constructed to:
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receive an initial signaling frame having unsolicited broadcast message sent by a network edge device of the wireless area network to terminals, said unsolicited broadcast message being only a trigger including an indicator flag, in a respective one field of the signaling frame, indicative that an emergency alert is waiting; receive at least the indicator flag at the terminal; and send, on a radio resource, a request by the terminal to the wireless area network for the emergency alert to be downloaded to the terminal, said received indicator flag at the terminal thereby acting as the trigger for the request to be sent from the terminal to the wireless area network.
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Specification