| 摘要 |
<p>A method for managing respective sequence numbers for different networks independently is provided. The method comprises: determining a network from which authentication data is received, in response to receipt of the authentication data; retrieving from a subscriber module a first sequence number for checking whether a second sequence number derived from the authentication data is valid, wherein the subscriber module stores respective sequence numbers for authentication with a group of networks independently, and the first sequence number corresponds to the determined network; and updating the first sequence number with the second sequence number, if the second sequence number is valid.</p> |
