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Multicast transmission in packet based cellular networks

  • US 7,903,593 B2
  • Filed: 08/22/2002
  • Issued: 03/08/2011
  • Est. Priority Date: 08/23/2001
  • Status: Expired due to Fees
First Claim
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1. A multicast support unit, comprising:

  • an input interface adapted to receive messages exchanged between mobile stations and a cellular packet support node;

    a filter adapted to identify in messages received by the input interface, not directed to the multicast support unit, messages which indicate an intent of a mobile unit to receive multicast data; and

    a controller adapted to instruct a mobile unit, indicated in a message identified by the filter, to receive a specific multicast channel.

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