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Network directed cell broadcasts for emergency alert system

  • US 9,549,303 B2
  • Filed: 11/19/2014
  • Issued: 01/17/2017
  • Est. Priority Date: 08/02/2006
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • receiving, at a device, broadcast information, wherein the broadcast information comprises information about a plurality of broadcast channels;

    storing, by the device, the broadcast information;

    receiving, at the device, an instruction not to engage in broadcast channel monitoring;

    monitoring, by the device, a control channel of the device;

    receiving, at the device, via the control channel, an indication that an alert is being broadcast;

    retrieving, responsive to the indication, the stored broadcast information;

    overriding the instruction, wherein broadcast monitoring is enabled as a result of the overriding;

    responsive to the overriding, tuning, based on the retrieved broadcast information, to a broadcast channel of the plurality of broadcast channels;

    receiving, via the tuned broadcast channel, an emergency alert broadcast from an emergency alert network; and

    responsive to receiving the emergency alert broadcast, after a predefined period of time has expired on the device, resetting the instruction not to engage in broadcast monitoring.

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