NonAAS MFCN UAS and RAS RAS bands for
Non-AAS MFCN UAS and RAS
RAS bands for discussion RAS Band 1400 -1427 MHz 1660 -1670 MHz 1718. 8 -1722. 2 MHz 2690 -2700 MHz 3345. 8 -3352. 5 MHz
MFCN UL bands MFCN Band UL Band 700 703 -733 MHz 800 832 -862 MHz 900 880 -915 MHz 1. 4 None (SDL) 1. 8 GHz 1710 -1785 MHz 2. 1 GHz 1920 -1980 MHz 2. 3 GHz 2300 -2400 MHz 2. 6 FDD 2500 -2570 MHz 2. 6 TDD 2570 -2620 MHz 3. 6 GHz 3400 -3800 MHz
No-RAS problem MFCN bands MFCN Band UL Band 900 880 -915 MHz 1. 4 None (SDL) 2. 1 GHz 1920 -1980 MHz 2. 3 GHz 2300 -2400 MHz 2. 6 FDD 2500 -2570 MHz
Potential issues 700 2 nd harmonics Potential issue 2 nd harmonics from UEs in 703 -733 MHz falling 1400 -1427 MHz Opinion 1 [? ? ? ] Opinion 2 Spurious emission issue to be flagged in PT 1 Could be studied in SE 21 or at national level 800 2 nd harmonics Potential issue 2 nd harmonics from UEs in 832 -862 MHz falling 1660 -1670 MHz Opinion 1 [? ? ? ] Opinion 2 Spurious emission issue to be flagged in PT 1 Could be studied in SE 21 or at national level
Potential issues 1800 MHz co-channel Potential issue UEs in 1710 -1785 MHz interfering RAS in 1718. 8 -1722. 2 MHz Opinion 1 [? ? ? ] Opinion 2 Secondary RAS allocation in ITU => RAS service not protected. Footnote ECA 29 reserves band for MFCN Out of scope of harmonised regulatory framework. 2. 5 GHz TDD Potential issue 2570 -2620 MHz TDD UE nterfering RAS in 2690 -2700 MHz band Opinion 1 [? ? ? ] Opinion 2 More than 7 x. BW frequency separation => far spurious domain regulated by generic spurious emission limits. Out of scope of report.
Potential issues 3400 MHz Potential issue UEs in 3400 -3800 MHz interfering RAS in 3345. 8 -3352. 5 MHz Opinion 1 [? ? ? ] Opinion 2 No allocation to RAS either in RR or in ECA. Out of scope of harmonised regulatory framework. Potential issue can be flagged for potential studies at national level.
Way forward Option 1 Method Study potential incompatibility from a theoretical angle in PT 1 and include in the harmonised framework: • Emission restrictions • Potentially associated flight height restrictions Critic Stringent emission restrictions and flight restriction prevent operation of UAS in affected bands, regardless of how critical the potential issue may be in reality. Option 2 Method • Flag potential issues in PT 1 • Perform measurements to assess criticality of scenario • Implement operation restriction at national level Critic Requires coordination at national level
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