| 摘要 |
A mobility support element (MSC/VLR; SGSN, GGSN) for a cellular radio network supporting circuit-switched and packet-switched connections to/from a mobile station (MS). For each mobile station (MS), there is a set (LSA 1 , LSA 2 ) of special cells (C 1 -C 3 , C 9 , C 10 ) providing special service. A radio control element (BSC 1 , BSC 2 ) determines whether the mobile station (MS) is in a special cell. Charging elements (CG, BC) receive charging information comprising detail items which indicate events which affect charging. The mobility support element (MSC/VLR; SGSN, GGSN) receives, when it begins to serve the mobile station, a list (LSA 1 , LSA 2 ) of the special cells for the mobile station, and sends the list to the serving radio control element (BSC 1 , BSC 2 ). The mobility support element also supports or performs classification of the detail items into two classes depending on whether or not the corresponding event occurred while the mobile station was in a special cell.
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