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Design Notes

Uplink WCDMA Signal Source:

This project implements an uplink WCDMA signal source according to ETSI TS 125 141 V6.11.0 (2005-09) Technical Specification.  The WCDMA source is configured as a 12.2 kbps UL reference measurement channel as defined in Annex A.2. 

Source Configuration:

The WCDMA source may be configured by setting appropriate parameters in the Global Definitions window.  These parameters, which are boxed for easy access, are:

OutPowerLevel_dBm:         Output Power Level (dBm)

CarrierFreq_MHz:                Carrier Frequency (MHz)

The value of samples/symbol may be changed by clicking on the Options/Default System Options in the Menu bar, then changing the Oversampling (_SMPSYM) parameter in the Simulator tab.

The following parameters are defined in the HSDPA specification document mentioned above and, in most cases, should not be changed:

CodeD:                                  Channelization code ID (data)

CodeC:                                  Channelization code ID (control)

LevelDPDCH:                       Relative level of DPDCH (dBm)

LevelDPCCH:                       Relative level of DCDCH (dBm)

System Diagram - WCDMA Uplink Signal Source

Graph - Spectrum

Graph - Waveforms