Terminology » Mobile Communication » WCDMA PCCPCH: Primary Common Control Physical Channel Explained

WCDMA PCCPCH: Primary Common Control Physical Channel Explained

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This page describes the PCCPCH or Primary Common Control Physical Channel with respect to a WCDMA/UMTS system. The Primary CCPCH is a fixed-rate (30 kbps, SF=256) downlink physical channel used to carry the BCH transport channel.

Key characteristics of the PCCPCH:

  • Channel coding: CRC, convolutional code
  • Symbol rate: 30 ksps
  • Spreading factor: 256
  • Modulation: QPSK
  • Spreading: predefined code (Cch,256,1)
  • Scrambling: Gold sequence - 3.84 Mcps, 10 ms periodic, primary scrambling code of the sector
  • Power control: Not supported
  • Pilot symbol: Included
  • TFCI bits: Not included

WCDMA PCCPCH

WCDMA CD/CA-ICH Explained

WCDMA CD/CA-ICH Explained

Definition of Collision Detection/Channel Assignment Indicator Channel (CD/CA-ICH) in WCDMA/UMTS systems, including its function and relationship to channel assignment.

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umts
channel

WCDMA Synchronization Channel (SCH) Explained

Learn about the WCDMA Synchronization Channel (SCH), its components (P-SCH and S-SCH), and its role in initial synchronization and cell search in UMTS networks.

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umts
synchronization