Hi Paul,
Just to add to your question. The MS usually only measures the level of the BCCH in the faster inner loop and then of the top levels measured it uses the idle TS in Multiframe to decode the BSIC and other information on that BCCH to be reported in UL measurement reports.
Now my confusion is whether the decoding of neighbours’ BSIC is TSC assisted or unassisted. and if so is it using blind equalization techniques for reading neighbour’s BSIC