WCDMA PCCPCH -Primary Common Control Physical Channel
This tutorial section on WCDMA (UMTS) basics covers following sub topics:
UMTS Tutorial
UMTS channels
measurements
PHY layer
TDD vs FDD PHY
RRC States
Security
Cell search
Bands
UARFCN
Frame
This page describes PCCPCH or Primary Common Control Physical Channel with respect to WCDMA/UMTS system.
The Primary CCPCH is a fixed rate (30 kbps, SF=256) downlink physical channels used to carry the BCH transport channel.
Channel coding- CRC, convolutional code
Symbol rate- 30 ksps
Spreading factor- 256
Modulation- QPSK
Spreading- predefined code (Cch,256,1)
Scrambling Gold sequence- 3.84Mcps, 10 ms periodic, primary scrambling code of the sector
Power control- not supported
Pilot symbol- include
TFCI bits- not included
WCDMA UMTS RELATED LINKS
UMTS Network Architecture
UMTS Protocol Stack
UMTS Logical, Transport and physical channels
UMTS Spreading,scrambling and modulation
WCDMA MO CS call
WCDMA PS Call
CDMA vs GSM
WCDMA Compressed mode