| 摘要 |
<p>A method for performing Cell-Updates or URA-Updates in a mobile communication system (10) is disclosed, whereby a user Equipment (UE) (19) sends a Cell-Update message or URA-Update message to an SRNC (16a). The transported Cell-Update message or URA-Update message includes a sequence counter which is incremented each time the UE (19) sends such a message to the SRNC (16a). The SRNC (16a) stores the value of the sequence counter for each Cell-Update message or URA-Update message received and acknowledged. If the SRNC (16a) receives a Cell-Update message or URA-Update message with a corresponding sequence counter value that is lower than the sequence counter value stored for the previously received Cell-Update message or URA-Update message, then the SRNC (16a) ignores the received Cell-Update message or URA-Update message. Also, the SRNC (16a) does not store the sequence counter value for the ignored, received Cell-Update message or URA-Update message.</p> |
