Samsung Electronics Co., Ltd.

Peng Lei

Young Seok Kim

Jeong Jae Won

A handover method of a mobile terminal between heterogeneous networks for facilitating the handover with pre-authentication procedure is provided. A handover method between heterogeneous networks includes receiving, at a mobile terminal connected to a source network, information on at least one target authenticator of a target network from a source authenticator in response to an attach request; creating an authentication key between the mobile terminal and the target authenticator selected among the at least one target authenticator through a pre-authentication process; determining, when the mobile terminal transmits a handover request to the selected target authenticator, whether the authentication key contained in the handover request matches with the authentication key stored in the selected target authenticator; and connecting, when the authentication keys match with each other, to the target network via the selected target authenticator.

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Suwon-si, South Korea

Peng Lei