APPENDIX A Test Procedure for Spectral Mask and Emissions. – A.1 Introduction The purpose of this test is to verify compliance of the spectral mask and emissions requirements as required by the SARPs standard. BS/MS shall transmit signals without unwanted emissions in the frequency range immediately outside the necessary bandwidth to avoid interference to other frequency bands or systems. A.2 General Information A2.1 References [1] ITU-R SM.329-12 (2012-09) A2.2 Abbreviations BS: Base Station BSE: Base Station Emulator MS: Mobile Station RBW: Resolution Band Width SARPs: Standards And Recommended Practices UUT: Unit Under Test Worldwide Interoperability for Microwave Access A.3 Definition of the spectral emission mask and the zero dB reference A3.1 The power spectral density of the emissions when all active sub carriers are transmitted in the channel shall be attenuated below the maximum power spectral density as follows: On any frequency removed from the assigned frequency between 50–55% of the authorized bandwidth: 26 + 145 log (% of BW/50) dB On any frequency removed from the assigned frequency between 55– 100% of the authorized bandwidth: 32 + 31 log (% of (BW)/55) dB On any frequency removed from the assigned frequency between 100– 150% of the authorized bandwidth: 40 +57 log (% of (BW)/100) dB On any frequency removed from the assigned frequency beyond 150% of the authorized bandwidth: 50 dB Note. The power spectral density at a given frequency is the power within a bandwidth equal to a 100 kHz centered at this frequency, divided by this measurement bandwidth. Further, the measurement of the power spectral density should encompass the energy over at least one frame period. A3.2 The zero dB reference of the spectral mask shall be the peak power spectral density in the assigned channel bandwidth of 5 MHz.
APPENDIX A – Test Procedure for Spectral Mask and Emissions. A.1 Introduction The purpose of this test is to verify compliance of the spectral mask and emissions requirements as required by the SARPs standard. BS/MS shall transmit signals without unwanted emissions in the frequency range immediately outside the necessary bandwidth to avoid interference to other frequency bands or systems. A.2 General Information A2.1 References [1] ITU-R SM.329-12 (2012-09) A2.2 Abbreviations BS: Base Station BSE: Base Station Emulator MS: Mobile Station RBW: Resolution Band Width SARPs: Standards And Recommended Practices UUT: Unit Under Test Worldwide Interoperability for Microwave Access A.3 Definition of the spectral emission mask and the zero dB reference A3.1 The power spectral density of the emissions when all active sub carriers are transmitted in the channel shall be attenuated below the maximum power spectral density as follows: On any frequency removed from the assigned frequency between 50–55% of the authorized bandwidth: 26 + 145 log (% of BW/50) dB On any frequency removed from the assigned frequency between 55– 100% of the authorized bandwidth: 32 + 31 log (% of (BW)/55) dB On any frequency removed from the assigned frequency between 100– 150% of the authorized bandwidth: 40 +57 log (% of (BW)/100) dB On any frequency removed from the assigned frequency beyond 150% of the authorized bandwidth: 50 dB Note. The power spectral density at a given frequency is the power within a bandwidth equal to a 100 kHz centered at this frequency, divided by this measurement bandwidth. Further, the measurement of the power spectral density should encompass the energy over at least one frame period. A3.2 The zero dB reference of the spectral mask shall be the peak power spectral density in the assigned channel bandwidth of 5 MHz.
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