Patent ID: 8855058

Claim:
A method for operating a wireless access network, comprising: via a wireless base station, for Iu-CS voice traffic, acting as a network controller, by, terminating Iu-b signals from user equipment; and relaying the voice traffic over Iu-CS via an IP sec tunnel; and for data traffic, acting as the network controller, by, terminating Iu-b signals from the user equipment; striping IP payload; and sending the data traffic inside IPsec; and via a wireless gateway, for Iu-CS voice traffic, acting as a security gateway, by, establishing the IP sec tunnel with the wireless base station without the support of a GPRS Tunneling Protocol (GTP) as defined over Iu-PS; and receiving and forwarding the tunneled Iu-CS voice traffic to a mobile switching center; and for data traffic, acting as a security gateway, by, encapsulating the IP payload and send it via Gn to GGSN.