LTE RACH part3(Contention Resolution and Timing advance to get UE in-Sync with N/W)

we Discussed about what is PRACH preamble sequence in RACH. Discussed what is contention resolution step in "contension based RACH" in detail(most important in RACH). Discussed how RA RNTI(Tid) ,TA(Timing advance) and UL grant in RACH response play major role in contension resolution. How TA(Timing advance) helps UE to be in-sync with enodb. Finally we tried to visualize subframe as resource.