Fast vowifi handoff using ike v2 optimization

A method for VoWiFi handoff, the method comprising:

• obtaining a reference signal received power (RSRP) for a long term evolution (LTE) signal and a reference signal strength indicator (RSSI) for a WiFi signal;
• in response to determining at least the obtained RSSI for the WiFi signal being greater than an RSSI threshold, performing a pre-setup of an internet protocol security (IPsec) tunnel;
• determining whether a handoff is to be performed after completion of the pre-setup of the IPsec tunnel;
• and
• in response to determining that the handoff is to be performed, performing a completion of the IPsec tunnel.

A non-transitory computer readable medium embodying a computer program, the computer program comprising computer readable program code that when executed by at least one processing device, causes a user equipment (UE) to:

• obtain a reference signal received power (RSRP) for a long term evolution (LTE) signal and a reference signal strength indicator (RSSI) for a WiFi signal;
• in response to determining at least the obtained RSSI of the WiFi signal is greater than an RSSI threshold, perform a pre-setup of an internet protocol security (IPsec) tunnel;
• determine whether a handoff is to be performed after completion of the pre-setup of the IPsec tunnel;
• and
• in response to a determination that the handoff is to be performed, perform a completion of the IPsec tunnel.