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WCDMA PICH(Paging Indicator 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 PICH or Paging Indicator Channel with respect to WCDMA/UMTS system.

The page indicator channel (PICH) is always associated with a paging channel (PCH) on S-CCPCH. The PICH carries the page indicators (PIs), where PI indicates the subset of UEs within a cell whether they should check the next S-CCPCH frame for paging messages.

WCDMA PICH

Symbol rate-15 ksps
Spreading factor-256
Spreading code-OVSF
Scrambling Gold sequence-3.84Mcps, 10 ms periodic
Number of PI-18/36/72/144

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

RF and Wireless Terminologies


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