| 摘要 |
<p>According to the present invention, there is provided a mobile services switching centre for a digital cellular communication network comprising switching means to perform the switching functions necessary to cover mobile stations receiving services from the mobile services switching centre and monitoring means to monitor the mobility of the mobile stations covered by the mobile services switching centre. The mobile services switching centre MSC in particular comprises a means (10) for scheduling unstructured supplementary service data dialogues to at least one virtual transaction channel (14) between the mobile services switching centre MSC and a mobile station (16). Since several unstructured supplementary service data dialogues may be processed in parallel, unstrctured supplementary service data requests will no longer be rejected during another unstructured supplementary service data dialogue, thus providing a very efficient approach with respect to throughput and reject ratio for unstructured supplementary service data dialogues.</p> |
