Method of controlling a network entity and a mobil

专利名称：Method of controlling a network entity and

a mobile station

发明人：Joe Howard申请号：US10516715申请日：20020626

公开号：US20050221797A1公开日：20051006

专利附图：

摘要：A method of controlling a network entity () of a mobile communication networkand a mobile station () is described, as well as a corresponding mobile station andnetwork entity. The network entity () and the mobile station () are arranged to conduct a

plurality of predetermined message exchange procedures in the course of whichpredetermined messages are exchanged between said network entity () and said mobilestation () depending on the given procedure. The predetermined messages may beencrypted, an encrypted message being any message of which at least a part is

encrypted. The network entity () and the mobile station () are furthermore arranged toconduct one or more encryption key generation procedures in parallel during which thenetwork entity () and the mobile station () generate and store respective correspondingencryption keys, in order to be able to encrypt and decrypt exchanged messages. Themethod comprises a step of determining (S) whether a received message from themobile station is encrypted. If the received message is encrypted, it is determined (S)whether a correct encryption key for decrypting said message is available to said

network entity (), and if no correct key is available, a predetermined triggering message issent to said mobile station (). The mobile station () then interrupts (S) the procedure inthe course of which it sent the encrypted message for which the network entity () did nothave a correct key, and initiates (S) an encryption key generation procedure.

申请人：Joe Howard

地址：Dublin IE

国籍：IE

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