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Method and apparatus for call establishment in a satellite communication system

  • US 5,732,387 A
  • Filed: 12/04/1995
  • Issued: 03/24/1998
  • Est. Priority Date: 12/04/1995
  • Status: Expired due to Term
First Claim
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1. In a subscriber unit that communicates within a communication system that includes at least one communication node, a method of accessing said communication system comprising the steps of:

  • checking a validity of location data stored within said subscriber unit, said location data being valid for a validity period based on a mobility factor associated with said subscriber unit, said mobility factor including a maximum velocity said subscriber unit is capable of traveling;

    when said location data is valid, sending an access request that includes said location data to said communication system; and

    cooperating with said one communication node to establish a communication link between said subscriber unit and said one communication node after said location data is verified by said communication system.

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