CPC H04W 12/60 (2021.01) [H04W 8/02 (2013.01); H04W 12/106 (2021.01); H04W 36/0038 (2013.01); H04W 60/04 (2013.01)] | 20 Claims |
1. A method, performed by a network unit, for supporting interworking between different wireless communication systems, including a higher generation wireless system and a lower generation wireless system, to enable secure communication with a wireless communication device, wherein the method comprises:
selecting, in connection with a registration procedure and/or a security context activation procedure of the wireless communication device with the higher generation wireless system, at least one security algorithm of the lower generation wireless system, also referred to as lower generation security algorithm(s);
sending a control message including information on the selected lower generation security algorithm(s) to the wireless communication device; and
storing information on the selected lower generation security algorithm(s) in the network unit.
|