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Method for conveying encryption information to parties in a multicast group

  • US 20030031322A1
  • Filed: 08/07/2002
  • Published: 02/13/2003
  • Est. Priority Date: 08/07/2001
  • Status: Abandoned Application
First Claim
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1. A method for conveying encryption information to parties in a multicast group in a mobile radio network, the method comprising the steps of:

  • allocating a connection, which is already protected against interception by unauthorized persons, as dedicated to a receiver of the encryption information; and

    transmitting a cipher key and at least a part of a current encryption sequence number via an air interface and via the connection which is already protected against interception by unauthorized persons.

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