MOBILE COMMUNICATIONS METHOD, MOBILE MANAGEMENT NODE, AND WIRELESS BASE STATION

摘要

A mobile communication method according to the present invention includes: a step in which a mobile management node MME generates a key K x using a key K ASME1 and a key K ASME2 , the key K x being used in security of the data signal transmitted and received through a Ud interface, the key K ASME1 being managed only by the mobile management node MME and a mobile station UE#1, the key K ASME2 being managed only by the mobile management node MME and a mobile station UE#2; a step in which the mobile management node MME transmits the key K x to the mobile station UE#1 and the mobile station UE#2; and a step in which the mobile station UE#1 and the mobile station UE#2 transmit and receive the data signal through the Ud interface using the key K x .