Safar,
the UL TBF will be released, and re-established. DL and UL TBF are totally independant, they can be released and reestablished without impacting the concurrent TBF (concurrent = TBF in the other direction)
So yes, the UL PDCH is released and will be be reallocated when needed, if it is still avaiable.
DS,
I’m sorry, i don’t understand your question
pix