CPICH is the reference channel used for cell selection and handover procedures.
1. UE measures the received power of CPICH channel from different cells (called the Monitored Set) and selects the one with the highest one as the serving cell.
2. The decision to add or remove the Active Set depends on the ratio between the received [...]
The transmission power of the primary CPICH (Common Pilot Channel) is broadcast in the BCH channel.
This allows a UE to measure the path loss by measuring the received power of the CPICH and comparing it with the transmitted power.
The combination of different frequency, code and time specify a set of physical channels.
Two main categories: (1) dedicated and (2) control
1. Dedicated physical channels
a. DPDCH (Dedicated Physical Data Channel):
carries DCH transport channel.
As with DCH, this exists both in the uplink and downlink.
closed loop power control (1500 Hz/sec)
b. DPCCH (Dedicated Physical Control Channel):
relates to DPDCH and [...]
