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Mobility management state transition system and method for handling dark beam scenarios

  • US 20030045289A1
  • Filed: 06/28/2002
  • Published: 03/06/2003
  • Est. Priority Date: 09/06/2001
  • Status: Active Grant
First Claim
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1. A method for operating a software layer in a user'"'"'s access terminal in a satellite based telecommunications systems, comprising the steps of:

  • entering a deregistered state from a power-off state;

    initiating an attach request procedure from an access terminal to an existing network;

    identifying a PLMN of a first broadcast channel, camping on the first broadcast channel and establishing deregistered service with a first network through use of the first broadcast channel;

    entering a registered illuminated state if a dark beam is illuminated, and entering a deregistered dark beam state if the dark beam is not illuminated; and

    engaging in telecommunication activities with a new network while in the registered illuminated dark beam state.

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