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Methods and apparatus for contingency communications

  • US 9,773,406 B2
  • Filed: 02/04/2016
  • Issued: 09/26/2017
  • Est. Priority Date: 02/06/2012
  • Status: Active Grant
First Claim
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1. A method for providing communication by a base station in a network comprising base stations and portable devices, the method comprising:

  • transmitting a beacon signal indicating an emergency status to a portable device, the beacon signal usable by the portable device to determine whether to enter a stress mode;

    receiving an acknowledgement signal from the portable device in response to the beacon signal; and

    deriving, from the received acknowledgement signal, information associated with the portable device or a user of the portable device.

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