UE INITIATED EVOLVED PACKET CORE (EPC) AND IP MULTIMEDIA SUBSYSTEM (IMS) NETWORK USAGE OPTIMIZATION ALGORITHM FOR LTE CAPABLE SMARTPHONES CONNECTED TO WIRELESS LAN(WI-FI) NETWORK

摘要

According, to some embodiments, a wireless device determines that Wi-Fi is on and that the wireless device is not. in a voice over LTE (volte) call or a video call with an LTE node. In response to the determination, the wireless device starts a 'Wi-Fi ping session via a Wi-Fi node. If the Wi-Fi ping session is successful and no packet loss is observed, the wireless device detaches from the LTE node, disables LTE on the wireless device, and attaches to a legacy node.