Receiver bandwidth MHz 20 20 Noise power dBm -97 -97 Antenna gain dBi 1.3 1.3 Protection Criterion I/N dB -6 -6 Interference threshold at antenna dBm -104.3 -104.3 Required attenuation dB 117.3 137.3 Required separation distances ITS RLAN → Sep. distance - Urban model m 416 1215 Sep. distance - Suburban model m 740 2486 Sep. distance - Rural model m 1409 5687 Sep. distance - ETSI TR 102 492 m 763 4200 Summary - Analysis Table 13: Summary results, MCL calculations for interference from RLAN into ITS separation – distances Scenarios for Results Separation Distance RLAN into ITS RLAN Required ETSI TR Urban Suburban Rural Bandwidth Attenuation 102 492 20 MHz 101 dB 174 m 275 m 390 m 190 m Scenario 1 RLAN – in-car (14 dBm power), ITS 40 MHz 98 dB 148 m 226 m 304 m 147 m external antenna 80 MHz 95 dB 126 m 183 m 230 m 114 m RLAN Required ETSI TR Suburban Rural Bandwidth Attenuation 102 492 Scenario 2 RLAN – 20 MHz 121 dB 507 m 925 m 1821 m 1044 m in-car (14 dBm power), ITS internal antenna 40 MHz 118 dB 432 m 771 m 1476 m 808 m 80 MHz 115 dB 367 m 642 m 1196 m 625 m Table 14: Summary results, MCL calculations for interference from ITS into RLAN– separation distances Scenarios for ITS into Required Separation Distance RLAN Attenuation Urban Suburban Rural ETSI TR 102 492
Receiver bandwidth MHz 20 20 Noise power dBm -97 -97 Antenna gain dBi 1.3 1.3 Protection Criterion I/N dB -6 -6 Interference threshold at antenna dBm -104.3 -104.3 Required attenuation dB 117.3 137.3 Required separation distances ITS → RLAN Sep. distance - Urban model m 416 1215 Sep. distance - Suburban model m 740 2486 Sep. distance - Rural model m 1409 5687 Sep. distance - ETSI TR 102 492 m 763 4200 Summary - Analysis Table 13: Summary results, MCL calculations for interference from RLAN into ITS – separation distances Scenarios for RLAN into ITS Results Separation Distance Scenario 1 – RLAN in-car (14 dBm power), ITS external antenna RLAN Bandwidth Required Attenuation Urban Suburban Rural ETSI TR 102 492 20 MHz 101 dB 174 m 275 m 390 m 190 m 40 MHz 98 dB 148 m 226 m 304 m 147 m 80 MHz 95 dB 126 m 183 m 230 m 114 m Scenario 2 – RLAN in-car (14 dBm power), ITS internal antenna RLAN Bandwidth Required Attenuation Suburban Rural ETSI TR 102 492 20 MHz 121 dB 507 m 925 m 1821 m 1044 m 40 MHz 118 dB 432 m 771 m 1476 m 808 m 80 MHz 115 dB 367 m 642 m 1196 m 625 m Table 14: Summary results, MCL calculations for interference from ITS into RLAN– separation distances Scenarios for ITS into RLAN Required Attenuation Separation Distance Urban Suburban Rural ETSI TR 102 492
draft_ecc_report_277.docx