Cell
Search procecess in WCDMA would be described as follows (For the detailed
understanding, I would recommend you to study each of the physical channels
involved in the following description).
i) Every cell is tranmitting its scrambling code(Primary
Scrambling Code) via CPICH.
ii) UE detect the cell power, primary scrambling code and some
addition info for compensating demodulation process
iii) UE detect P-SCH (Primary Synchronization Code) and
figure out slot boundary (start and end of each slot)
iv) UE detect S-SCH (Primary Synchronization Code) and figure
out frame bounday (start and end of each frame)
v) UE detect P-CCPCH and decode MIB. Through this MIB, UE can
figure out SFN.