5G | ShareTechnote There are largely two types of RACH procedure in terms of allowable physical resources of PRACH (i e, time and frequency location of PRACH) and sequence index of the PRACH This is also almost same as in LTE
NR-PRACH (NR Physical Random Access Channel) NR-PRACH (New Radio Physical Random Access Channel) is an essential component of the 5G (fifth-generation) wireless communication standard It is responsible for managing the initial access procedure, enabling user equipment (UE) to establish a connection with the network
5G NR PRACH function, contents and mapping - 5G Networks PRACH is used to carry random access preamble from UE towards gNB (i e 5G NR base station) • It helps gNB to adjust uplink timings of the UE in addition to other parameters • Zadoff chu sequences are used to generate 5G NR random access preamble similar to LTE technology
Random Access in LTE - Radio Frequency Optimization Notes Physical Random Access Channel (PRACH) Planning In LTE there are 64 PRACH signatures available per cell (remember fighting collisions with the few 16 in UMTS?) The 64 signatures are generated from cyclic shifts of root Zadoff–Chu sequences
What is LTE PRACH? PRACH Parameter Optimization - PAKTECHPOINT The PRACH (Physical Random Access Channel) procedure in LTE is controlled by several parameters defined within the RadioResourceConfigSIB information element, part of the System Information Block Type 2 (SIB2)
PRACH (LTE) - Keysight PRACH (LTE) PRACH Physical Random Access Channel is the Physical Random Access Channel and is used by UEs to request an uplink allocation from the base station In the frequency domain, PRACH spans 6 resource blocks of spectrum