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WCDMA3G_DnLkCPICH


Description: Downlink common pilot channel
Library: 3GPPFDD 10-99, Base Station
Class: SDFWCDMA3G_DnLkCPICH

Parameters

Name

Description

Default

Sym

Type

Range

ScramblingCodeIndex

scrambling code index

0

Id

int

[0, 8191]

CPICHGainFactor

gain factor for CPICH

1.0

G

real

[0, ∞)

Pin Outputs

Pin

Name

Description

Signal Type

1

Out

output data

complex

Notes/Equations
  1. This subnetwork model is used to generate the modulated signal of common pilot channel (CPICH).
    The schematic for this subnetwork is shown in the following figure. The data source of CPICH, the pilot patterns on downlink CPICH, is generated by model WCDMA3G_DnLkCPICHGen. Then this data stream is spread by spreading code Cch,256,0 generated by WCDMA3G_OVSF. WCDMA3G_DnLkScrambler generates the scrambling code that is the primary scrambling code with index of int (Id/16). The spread data is multiplied by the scrambling code, then weighted by gain factor G.

    WCDMA3G_DnLkCPICH Schematic

References
  1. 3GPP Technical Specification TS 25.213 V3.0.0 "Spreading and Modulation (FDD)," October 1999.
  2. 3GPP Technical Specification TS 25.211 V3.0.0 "Physical channels and mapping of transport channels onto physical channels (FDD)," October 1999.
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