Page tree
Skip to end of metadata
Go to start of metadata


WCDMA3G_DownSample


Description: Extract optimum samples according to path delay timing
Library: 3GPPFDD 10-99, Rake Receiver
Class: SDFWCDMA3G_DownSample
Derived From: WCDMA3G_RakeBase

Parameters

Name

Description

Default

Sym

Type

Range

ChipRate

chip rate of system: Chip Rate 3.84Mcps

Chip Rate 3.84Mcps

 

enum

 

SampleRate

number of samples per chip

4

S

int

[1, 32]

PathNum

number of paths or fingers of Rake

6

L

int

[1, 16]

Pin Inputs

Pin

Name

Description

Signal Type

1

Delays

path delays in terms of samples

int

2

SmpSig

received baseband complex envelope signal samples

complex

Pin Outputs

Pin

Name

Description

Signal Type

3

ChpSeq

extracted optimum chip sequence

multiple complex

Notes/Equations
  1. This model is used to extract optimum samples using the path delay timing given by WCDMA3G_PathSearch.
    Each firing, S × N tokens are consumed at SmpSig, L tokens are consumed at Delays, N tokens are produced at ChpSeq, where N is the number of chips per slot. ChpSeq depends on PathNum.

References
  1. 3GPP Technical Specification TS25.211 V3.0.0,"Physical channels and mapping of transport channels onto physical channels (FDD)," October 1999.
  2. A. J. Viterbi, "CDMA: Principles of Spread Spectrum Communication," Wesley Publishing Company, 1995.
  • No labels