| 摘要 |
A GSM mobile telecommunications network provides a radio access network, comprising base transceiver stations 22 and base station controllers 26, together with a core network, comprising mobile switching centres 2, serving gateway support nodes 16, core 12 and home location register 10. The radio access network comprises a plurality of geographically distributed cells. The network provides GSM functions to mobile devices registered therewith over a GSM bearer. The network is adapted to also provide core network GSM functions to devices registered therewith over a non-GSM bearer via a different access network. This different access network may comprise a Bluetooth (RTM) connection between the mobile terminal and an access point 20, and an IP-based communications link between the access point 20 and an access controller 24. The access points 20 may be provided by different organisations, some of which provide service without charge, some of which charge the mobile terminal user directly, and some of which charge the cellular network operator. The identity of the access point used is determined, and the charge rendered for using the core network is selected in dependence upon the identity of the identity of the access point. |
