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Design Notes

Measurements:

According to ETSI TS 125 141 V6.11.0 (2005-09) Technical Specification

- 6.5.2.1  Spectrum Emission Mask

Results are displayed in Spectrum Emission Mask graph.  Masks in Tables 6.18 to 6.21 are stored in SpectralMasks file in the project tree, in columns 2 to 5.  These may be selected by setting the appropriate column index in the corresponding graphs.  Masks for Table 6.19 and 6.29 are calculated for Output Power levels of 41 and 35 dBm, respectively.  For other levels they should be recalculated.

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WCDMA/HSDPA TX Conformance Testing

According to 3GPP TS 25.141 V6.10.0

Test Models for TX conformance testing are selected through TestModel parameter in Global Definitions.  Multiple channel configurations available for some of the tests are selected by the ChannelConfig parameter.  In case of invalid entries, these parameters are rounded to the nearest valid value.

The rated output power, PRAT, of the base station is set by OutPowerLevel_dBm.  The nominal values are specified as follows:

The center frequency is specified by CarrierFreq_MHz. Its value should be set according to the values specified in Section 3.4 of the specification document.

Test Model configurations are specified in the tables below:

System Diagram - WCDMA_HSDPA_TestModels

Graph - ACLR

Power (dBm) DB(ACPR(VSA.M2,1852.5,3,5,3,5,3,5,3,1,0,1,0,0,1000,0,10,0,-1,0,-1,1,0.22,0,1,0)) WCDMA_HSDPA_TestModels DB(ACPR(VSA.M2,1852.5,3,5,3,10,3,5,3,1,0,1,0,0,1000,0,10,0,-1,0,-1,1,0.22,0,1,0)) WCDMA_HSDPA_TestModels
-0.130555 -32.1972 -61.8489

Graph - Power Levels

Time (ms) DB(PWR_vsT(TP.TP_TX_Out,1,0,1,0,0,1000,0,10,0,-1,0,-1,10,1,0,0.5,0,0,0,0,0)) (dBm) WCDMA_HSDPA_TestModels DB(PWR_vsT(TP.TP_AMP_Out,1,0,1,0,0,1000,0,10,0,-1,0,-1,10,1,0,0.5,0,0,0,0,0)) (dBm) WCDMA_HSDPA_TestModels
100 -0.130555 11.4762

Graph - Spectrum Emission Mask