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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).
AIs correspond to the signature S of the PRACH.
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Learn about the WCDMA Downlink Dedicated Physical Channel (DPCH), its characteristics, and its role in transmitting dedicated data to users in UMTS networks.
Learn about the WCDMA Physical Common Packet Channel (PCPCH), used to carry the CPCH transport channel in UMTS systems.
Learn about the WCDMA Secondary Common Control Physical Channel (SCCPCH), its features, and role in carrying FACH and PCH in UMTS systems.
Prepare for your WCDMA/UMTS job interview with these top 10 questions and answers covering key concepts and technologies.
Explore the multiple access techniques employed in UMTS (3G), including WCDMA, TD-CDMA, and TD-SCDMA, and learn how they enable efficient spectrum use.
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