Controller for gsm and 3g base transceiver stations in a gsm core network with external handover possibility from 3g cells to gsm cells transparent to gsm core network

Station controller (M-BSC) is GSM (global mobile communication system) or DCS (digital cellular system and mobile transceiver system transceiving base station BTS, and TD-SCDMA connected with the 3G system typical code-division transceiver access technology and AND duplex (synchronization code division multiple access system( transceiving base station BTSC. The controller is a GSM type MSC the switch circuit exchange. The new 3G technology according GSM core network, otherwise neglects the GSM core network existence. A suppressing to from a GSM cell to BTSC cell handover, and pneumoelectric processing to transmit the MSC information switch and external side zone of GSM cell from the BTSC cell (by intervention of MSC), a 3G realizes the novel technology's transparency to the core network. The special processing method for by the controller and comprises: A mixed list of BTSC reprocessing handover candidate cell (2G and 3G), efficiently obtaining wireless technology different two plots to tabulate; Selecting a list substrate-processing MSC according to the service quality received; And associated with MSC a mobile device (MS/UE) and a symbol having a a symbol with selective listing and local memory the comparison; The inconsistent condition, updating an MSC a symbol front into a selective listing.