UE is known by its serving RNC (SRNC), on cell level or active set level. UE has been allocated a dedicated channel. Dedicated control channels (DCCH) are used for control signaling and a dedicated traffic channel (DTCH) is used for user data transmission.
DCCH and DTCH are mapped onto dedicated transport channels (DCH).
The UE performs measurements and sends reports to the RNC accordingly to the measurement control information it received from the RNC.
For multimode terminals (WCDMA – GSM/GPRS) it is possible to perform Inter Radio Access Technology handover (IRATHO) (WCDMA to GSM) and Inter Radio Access Technology Cell Change (IRATCC) (WCDMA to GPRS).
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