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3GPPFDD_PRACHScrmb



Description: Uplink PRACH scrambling code generator
Library: 3GPPFDD, PhyCH Multiplexers & Coders
Class: SDF3GPPFDD_PRACHScrmb
Derived From: 3GPPFDD_ULPhyCHBase

Parameters

Name

Description

Default

Unit

Type

Range

SpecVersion

version of specifications: Version_03_00, Version_12_00, Version_03_02

Version_12_00

 

enum

 

ScrambleCode

index of scramble code

0

 

int

[0:512] for downlink;
[0, 16777215] for uplink

Pin Outputs

Pin

Name

Description

Signal Type

1

out

scrambling code sequence

complex

Notes/Equations
  1. This model is used to generate the scrambling code of the PRACH message.
  2. Each firing, one token is produced. The complete scrambling sequence can be generated by 38400 firings. The sequence repeats every 38400 firings.

References
  1. 3GPP Technical Specification TS 25.213 V3.7.0, Spreading and modulation (FDD), March 2003, Release 1999.

    http://www.3gpp.org/ftp/Specs/2002-03/R1999/25_series/25213-370.zip

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