TABLE A1-2 IMT-Advanced base stations parameters Cell structure Macro suburban Macro Small cell Small cell urban outdoor indoor Antenna height 25 m 20 m 6 m 3 m Downtilt 6 degrees 10 degrees N/A N/A Antenna pattern Recommendation ITU-R F.1336 Recommendation ITU-R F.1336 (recommends 3.1) omni ka = 0.7 – kp = 0.7 – kh = 0.7 – kv = 0.3 – Horizontal 3 dB beamwidth: 65 degrees Vertical 3 dB beamwidth: determined from the horizontal beamwidth by equations in Recommendation ITU-R F.1336. Vertical beamwidths of actual antennas may also be used when available. Antenna polarization ±45 degrees ±45 degrees linear linear Indoor base station N/A N/A N/A 20 dB penetration loss Maximum base station output power/sector 61 dBm/20 MHz 61 dBm/20 MHz 29 dBm/20 MHz 24 dBm/20 MHz (e.i.r.p.) The propagation defined in Recommendation ITU-R P.452-14 is employed in the sharing study. In order to evaluate non-site specific conditions, any specific terrain information is not assumed, but smooth earth surface model is assumed. Furthermore, in the studies, impact of additional clutter losses defined in § 4.5 of Recommendation ITU-R P.452-14 is evaluated. Two interference criteria are used to assess the interference mechanisms of emissions” “In-band from an IMT-Advanced base station to an FSS earth station. Long-term interference criterion: In-band sharing studies: = 10 dB (T/T = 10%) corresponding to the aggregate I/N – interference from co-primary allocation for 20% of any Where is the clear-sky satellite system noise as described in Recommendation ITU-R S.1432. N In the absence of specific recommendations on how to apportion these allowances among the competing potential sources of interference, the long-term interference from any individual secondary or unallocated service as well as interference into adjacent frequency bands (unwanted emissions) should be limited to half of the total noise interference allowance into an FSS link, and from any individual primary service it should be limited to half of the afore mentioned values of 10% of the total noise. This 50% apportionment of interference is applicable to the case where two
TABLE A1-2 IMT-Advanced base stations parameters Cell structure Macro suburban Macro urban Small cell outdoor Small cell indoor Antenna height 25 m 20 m 6 m 3 m Downtilt 6 degrees 10 degrees N/A N/A Antenna pattern Recommendation ITU-R F.1336 (recommends 3.1) – ka = 0.7 – kp = 0.7 – kh = 0.7 – kv = 0.3 Horizontal 3 dB beamwidth: 65 degrees Vertical 3 dB beamwidth: determined from the horizontal beamwidth by equations in Recommendation ITU-R F.1336. Vertical beamwidths of actual antennas may also be used when available. Recommendation ITU-R F.1336 omni Antenna polarization ±45 degrees ±45 degrees linear linear Indoor base station penetration loss N/A N/A N/A 20 dB Maximum base station output power/sector (e.i.r.p.) 61 dBm/20 MHz 61 dBm/20 MHz 29 dBm/20 MHz 24 dBm/20 MHz The propagation defined in Recommendation ITU-R P.452-14 is employed in the sharing study. In order to evaluate non-site specific conditions, any specific terrain information is not assumed, but smooth earth surface model is assumed. Furthermore, in the studies, impact of additional clutter losses defined in § 4.5 of Recommendation ITU-R P.452-14 is evaluated. Two interference criteria are used to assess the interference mechanisms of “In-band emissions” from an IMT-Advanced base station to an FSS earth station. Long-term interference criterion: – In-band sharing studies: I/N = 10 dB (T/T = 10%) corresponding to the aggregate interference from co-primary allocation for 20% of any Where N is the clear-sky satellite system noise as described in Recommendation ITU-R S.1432. In the absence of specific recommendations on how to apportion these allowances among the competing potential sources of interference, the long-term interference from any individual secondary or unallocated service as well as interference into adjacent frequency bands (unwanted emissions) should be limited to half of the total noise interference allowance into an FSS link, and from any individual primary service it should be limited to half of the afore mentioned values of 10% of the total noise. This 50% apportionment of interference is applicable to the case where two
R-REP-S.2368-2015-MSW-E.docx