Patent ID: 8279834
Filing Date: 2012-10-02
Classification: H04L,H04W

Abstract:
1. A method for handling Circuit Switched Fallback, in a User Equipment residing in a Packet Switched domain, comprising: receiving an indication that Circuit Switched Fallback is supported from an eNodeB located within the Packet Switched domain; registering to a Circuit Switched domain associated with Circuit Switched Fallback by tunneling Circuit Switched Registration information, via the eNodeB, to the Circuit Switched domain, enabling the User Equipment to setup a Circuit Switched call or receive a Circuit Switched page; receiving a Circuit Switched specific parameter setting from the eNB, wherein the Circuit Switched specific parameter setting comprises a pseudo random noise (PN) offset utilized by the Circuit Switched domain; preparing for using Circuit Switched Fallback by applying the received PN offset; and switching from the Packet Switched domain to the Circuit Switched domain.