Network connection control method and apparatus of mobile terminal

摘要

A network connection control method and apparatus of a mobile terminal maintains or releases connection to a wireless network based on the existence of downlink traffic from the wireless network. The method preferably includes connecting to a wireless network transmitting a signal greater than a predetermined value in strength when an Internet access request is detected; requesting the connected wireless network for traffic; determining whether the traffic is received from the connected wireless network; and releasing the connection to the wireless network by determining the wireless network as an idle wireless network when no traffic is received. The determination as to whether to maintain or release the connection to the currently connected WLAN based on whether actual traffic is received from the WLAN. When the mobile terminal is connected to an Access Point not coupled to the Internet, the mobile terminal immediately switches the connection to a cellular network.

主权项

1. A network connection control method of a mobile terminal, comprising:
detecting by a mobile terminal a request to access the Internet and connecting to a wireless network; requesting traffic from the connected wireless network; determining, if a signal strength received from the connected wireless network is equal to or greater than a predetermined signal strength, that the wireless network is an active network coupled to the Internet and maintaining connection to the wireless network; measuring a time duration until traffic is received from the connected wireless network if the signal strength received from the wireless network is less than the predetermined signal strength; determining, if the time duration is less than a predetermined time, that the wireless network is the active network coupled to the Internet and maintaining connection to the wireless network; measuring a data rate of payload of Internet Protocol (IP) packets if the time duration is equal to or greater than the predetermined time; determining the wireless network is the active network connected to the Internet and maintaining the connection to the wireless network if the measured data rate is equal to or greater than a predetermined value; and releasing the connection to the wireless network if no traffic is received.