Service connection apparatus and method in portable terminal

Abstract

A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.

What is claimed is: 
     
         1 . A call connection method in a portable terminal that supports multiple wireless communication technologies, the method comprising:
 establishing a connection with a first network supporting an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard;   performing a first service over the first network;   acquiring connection information of a second network when the evaluated strength of a signal received from a base station of the first network is below a predetermined condition;   establishing a connection with the second network supporting a Long Term Evolution (LTE) standard based on the acquired information; and   performing the first service over the second network.   
     
     
         2 . The method of  claim 1 , wherein the first service is a video call. 
     
     
         3 . The method of  claim 1 , wherein the first service is a voice call. 
     
     
         4 . The method of  claim 1 , further comprising:
 displaying a message in a pop-up window on a display of the portable terminal, the message indicating at least one of disconnection from the first network and connection to the second network.   
     
     
         5 . The method of  claim 4 , further comprising:
 displaying the message based on user-configured properties.   
     
     
         6 . The method of  claim 1 , wherein the establishing of the connection with the second network comprises:
 establishing the connection with the second network based on the acquired information and user-configured properties.   
     
     
         7 . A portable terminal that supports multiple communication modes, the portable terminal comprising:
 a first communication module configured to establish a connection with a first network supporting an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard and to perform a first service over the first network;   a second communication module configured to establish a connection with a second network supporting a Long Term Evolution (LTE) standard and to perform the first service over the second network; and   a controller configured to acquire connection information of a second network when the evaluated strength of a signal received from a base station of the first network via the first communication module is below a predetermined condition, and to control the second communication module to establish the connection with the second network based on the connection information.   
     
     
         8 . The portable terminal of  claim 7 , wherein the first service is a video call. 
     
     
         9 . The portable terminal of  claim 7 , wherein the first service is a voice call. 
     
     
         10 . The portable terminal of  claim 7 , further comprising:
 a display unit,   wherein the controller controls the display unit to display a pop-up message indicating at least one of disconnection from the first network and connection to the second network.   
     
     
         11 . The portable terminal of  claim 10 , wherein the controller controls the display unit to display the pop-up message based on user-configured properties. 
     
     
         12 . The portable terminal of  claim 7 , wherein the controller controls the second communication module to establish the connection with the second network based on user-configured properties. 
     
     
         13 . A call connection method in a portable terminal that supports multiple wireless communication technologies, the method comprising:
 establishing a connection with a first network supporting a Long Term Evolution (LTE) standard;   performing a first service over the first network;   acquiring connection information of a second network when the evaluated strength of a signal received from a base station of the first network is below a predetermined condition;   establishing a connection with the second network supporting a third generation cellular communication standard based on the acquired information; and   performing a second service over the second network,   wherein the first service is a video call, and   wherein the second service is a voice call.   
     
     
         14 . The method of  claim 13 , further comprising:
 displaying a message in a pop-up window on a display of the portable terminal, the message indicating at least one of disconnection from the first network and connection to the second network.   
     
     
         15 . The method of  claim 14 , further comprising:
 displaying the message based on user-configured properties.   
     
     
         16 . The method of  claim 13 , wherein the establishing of the connection with the second network comprises establishing the connection with the second network based on the acquired information and user-configured properties. 
     
     
         17 . A portable terminal that supports multiple communication modes, the portable terminal comprising:
 a first communication module configured to establish a connection with a first network supporting a Long Term Evolution (LTE) standard and to perform a first service over the first network;   a second communication module configured to establish a connection with a second network supporting a third generation cellular communication standard and to perform a second service over the second network; and   a controller configured to acquire connection information of a second network when the evaluated strength of a signal received from a base station of the first network via the first communication module is below a predetermined condition, and to control the second communication module to establish the connection with the second network based on the connection information,   wherein the first service is a video call, and   wherein the second service is a voice call.   
     
     
         18 . The portable terminal of  claim 17 , further comprising:
 a display unit,   wherein the controller controls the display unit to display a pop-up message indicating at least one of disconnection from the first network and connection to the second network.   
     
     
         19 . The portable terminal of  claim 18 , wherein the controller controls the display unit to display the pop-up message based on user-configured properties. 
     
     
         20 . The portable terminal of  claim 17 , wherein the controller controls the second communication module to establish the connection with the second network based on user-configured properties.