Handover method for minimizing packet call reconnection delay time between different mobile communication schemes and multi-mode terminal for the same

A method of handover for a multi-mode terminal having first and second modems supporting different communication services, the method comprising the steps of:

• receiving, by the first modem, a message including starting condition for handover to a second communication network, wherein the condition is defined by a first communication network;
• determining, by the first modem, whether the starting condition for handover in the received message is satisfied;
• if the starting condition for handover in the received message is satisfied, receiving by the second modem, a command from the first modem to handover to the second communication network;
• and
• registering, by the second modem, into the second communication network in response to the command of the first modem, and connecting to the second communication network to perform communication,
• wherein the first modem determines whether a measurement control message comprising a measurement report condition is received from the first communication network, monitors whether a state of the communication service through the first communication network satisfies the measurement report condition contained in the measurement control message, and transmits a measurement report message to the first communication network if the measurement report condition is satisfied.