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; |
Pin Outputs
Pin |
Name |
Description |
Signal Type |
|---|---|---|---|
1 |
out |
scrambling code sequence |
complex |
Notes/Equations
- This model is used to generate the scrambling code of the PRACH message.
- Each firing, one token is produced. The complete scrambling sequence can be generated by 38400 firings. The sequence repeats every 38400 firings.
References
- 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