WCDMA AICH (Acquisition Indicator Channel)

wcdma
umts
aich
acquisition indicator
physical channel

This page describes the AICH, or Acquisition Indicator Channel, with respect to the WCDMA/UMTS system. The Acquisition Indicator Channel (AICH) is a physical channel used to carry Acquisition Indicators (AI).

Acquisition Indicator

AIs correspond to the signature S of the PRACH.

WCDMA AICH