Patent ID: 8228876

Claim:
A method in a mobile terminal which is adapted to maintain a voice or data call via a wireless access point (AP) of a wireless local area network (WLAN), the method comprising the acts of: identifying a received signal strength indicator (RSSI) value of a radio frequency (RF) signal of the wireless AP; identifying a signal-to-noise ratio (SNR) value of the RF signal of the wireless AP; when the RSSI value is less than a predetermined RSSI value, but the SNR value is greater than a predetermined SNR value, providing an indication to maintain the communication operations in the WLAN; and when the RSSI value is less than the predetermined RSSI value, and the SNR value is less than the predetermined SNR value, providing an indication to switch the communication operations from the WLAN to a wireless wide area network (WWAN).