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WCDMA3G_DnLkSpreader


Description: Direct sequence spreader
Library: 3GPPFDD 10-99, Spreading & Modulation
Class: SDFWCDMA3G_DnLkSpreader

Parameters

Name

Description

Default

Type

SF

spreading factor: SF_4 , SF_8 , SF_16, SF_32, SF_64, SF_128, SF_256, SF_512

SF_256

enum

Pin Inputs

Pin

Name

Description

Signal Type

1

inData

information symbol

complex

2

inSeq

spreading code

int

Pin Outputs

Pin

Name

Description

Signal Type

3

out

symbols after spreading

complex

Notes/Equations
  1. This model is used to spread input data. In each firing, SF tokens are produced for each inData token and SF inSeq tokens consumed.
  2. This model multiplies each inData by inSeq.

References
  1. 3GPP Technical Specification, TS 25.213, V3.0.0, "Spreading and modulation (FDD)," October 1999.
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