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
- This model is used to spread input data. In each firing, SF tokens are produced for each inData token and SF inSeq tokens consumed.
- This model multiplies each inData by inSeq.
References
- 3GPP Technical Specification, TS 25.213, V3.0.0, "Spreading and modulation (FDD)," October 1999.