Patent ID: 7200383
Filing Date: 2007-04-03
Classification: H04L,H04M,H04W

Abstract:
1. An unlicensed mobile access network, comprising: a authentication unit configured to authenticate a mobile station to the unlicensed mobile access network before higher-layer messages are sent from the mobile station to a core network, thereby ensuring that a first subscriber in a unlicensed mobile access system is prevented from unauthorized use of a second subscriber's identity when the first subscriber requests services from the mobile station to the core network; a connecting unit configured to connect the mobile station to the core network and for relaying signals between the mobile station and the core network; and a checking unit configured to ensure that higher-layer messages passing through the unlicensed mobile access network from the mobile station to the core network are from the mobile station that is authenticated with the unlicensed mobile access network, wherein during authentication between the mobile station and the unlicensed mobile access network, the unlicensed mobile access network stores an identifying means that is associated with the mobile station and after authentication between the mobile station and the core network, the unlicensed mobile access network uses the checking unit to examine the higher-layer messages that are sent from the mobile station to the core network and to ensure that the identifying means associated with mobile station is stored in the higher-layer message.