| 摘要 |
<p>A system, methods, node, and computer program for deregistration of a user equipment (100) from the source control node (110) is described. The user equipment (100) is registered in the source control node (110) and in a subscriber database (130) while roaming from the source control node (110) to a target control node (140). The method in the source control node (110) comprises receiving an identification request message (210) from the target control node (140), the identification request requesting identification and security related information. The method the source control node (110) further comprises that triggered by the identification request message, a time supervision is started (215) supervising reception of a cancel location message from the subscriber database (130). When the time supervision expires, the user equipment (100) is deregistered from the source control node (110).</p> |
