Limited Mobility In WLL

I hope u all are fine. Can Some body explain what are
the possible solutions for maintaining limited
mobility in CDMA 2000 Based WLL network. And
1. what are the terms OTASP & OTAPA,
2. what is the difference between them.
3. what is PRL and How we can update PRL via OTAPA.

please provide in details information if some body
can. also related information will be higky appreciated

BR
Naveed Shaikh