Operating Manual Vol 1 - ES Documentation

Digital Standard 3GPP W-CDMA (FDD)SMIQTable 2-24 Change of crest factor in the case of clippingCLIPPING LEVELCrest factor with scenarioDownlink:10 DPCHs "minimumcrest" 30 kspsDownlink:10 DPCHs "worstcrest" 30 kspsDownlink:10 DPCHs "averagecrest" 30 ksps100% 9.89 dB 14.7 dB 10.9 dB 21.7 dB80% 8.86 dB 12.9 dB 9.39 dB 20.2 dB50% 7.50 dB 10.1 dB 8.29 dB 16.9 dB20% 5.50 dB 6.47 dB 6.23 dB 12.5 dB10% 5.34 dB 6.06 dB 5.80 dB 9.57 dB5% 5.34 dB 6.06 dB 5.80 dB 8.17 dBDownlink:128 DPCHs "averagecrest" 30 kspsEffect of clipping on the constellation shown by way of a 4-DPCH configuration:Fig. 2-131Constellation at clipping level 100% (not clipped)Fig. 2-132 Constellation at clipping level 50%1125.5555.03 2.214E-9