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MAC layer protocol for a satellite based packet switched services

  • US 6,778,509 B1
  • Filed: 11/16/2000
  • Issued: 08/17/2004
  • Est. Priority Date: 11/19/1999
  • Status: Expired due to Term
First Claim
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1. A method for establishing a communication channel in a packet radio communication system to exchange packets, the method comprising:

  • receiving a packet channel request message that specifies user terminal information from a terminal over a contention channel according to a prescribed protocol;

    transmitting an assignment message that specifies a channel assignment based upon the user terminal information, wherein the packets are transmitted over a channel according to the channel assignment;

    transmitting an unsolicited grant message that pre-allocates uplink resources of the packet radio communication system to the terminal; and

    receiving a control message based upon the step of transmitting the unsolicited grant message.

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