These Radio terms RAB, RB and RL in WCDMA, can someone define these in short ?

Question

While calculating the PO in WCDMA, we need the value for Number of SCCPCH which carry PCH.
In SIB 5 we will get the SCCPCH info, But am not able to identify how many sccpch is for pch.

Note: SCCPCH carry FACH and PCH information

Answer 1

Radio Access Bearers (RAB):
It is a service that provides to the non-access stratum for transfer of user data between User Equipment and Core Network by access stratum/signaling.

Radio Bearers (RB):
The service provided by the layer2 for transfer of user data between User Equipment and Serving RNC.

Radio Link (RL):
A radio link is a logical association between single User Equipment and a single UTRAN access point. Its physical realization comprises one or more radio bearer transmissions.