Chapter 3 TECHNICAL SPECIFICATIONS 3.1 PERFORMANCE 3.1.1 Levels The total base station Effective Isotropic Radiated Power (EIRP) in a sector shall not exceed: 39.4 dBm for elevation angles from the horizon up to 1.5 degrees 39.4 dBm linearly decreasing (in dB) to 24.4 dBm for elevation angles from 1.5 to 7.5 degrees 24.4 dBm linearly decreasing (in dB) to 19.4 dBm for elevation angles from 7.5 to 27.5 degrees 19.4 dBm linearly decreasing (in dB) to 11.4 dBm for elevation angles from 27.5 to 90 degrees In addition the following requirement for the mobile stations is applied: The mobile station EIRP shall not exceed 30 dBm Note 1: EIRP defined as antenna gain in a specified elevation direction plus the average AeroMACS transmitter power. While the instantaneous peak power from a given transmitter may exceed that level when all of the subcarriers randomly align in phase, when the large number of transmitters assumed in the analysis is taken into account, average power is the appropriate metric. Note 2: The breakpoints in the EIRP mask are consistent with the elevation pattern of a +15 dBi peak, 120 degree sector antenna as contained in ITU-R F.1336-2. Note 3: These values were derived using the worst-case analysis described. Other approaches involving higher powers may be acceptable, however additional analysis must be performed to ensure the total interference allowable at the FSS satellites, consistent with ITU requirements, is not exceeded. Note 4: If a sector contains multiple transmit antennas (e.g., MIMO), the specified power limit is the sum of the power from each antenna.
Chapter 3 TECHNICAL SPECIFICATIONS 3.1 PERFORMANCE 3.1.1 Levels The total base station Effective Isotropic Radiated Power (EIRP) in a sector shall not exceed: 39.4 dBm for elevation angles from the horizon up to 1.5 degrees 39.4 dBm linearly decreasing (in dB) to 24.4 dBm for elevation angles from 1.5 to 7.5 degrees 24.4 dBm linearly decreasing (in dB) to 19.4 dBm for elevation angles from 7.5 to 27.5 degrees 19.4 dBm linearly decreasing (in dB) to 11.4 dBm for elevation angles from 27.5 to 90 degrees In addition the following requirement for the mobile stations is applied: The mobile station EIRP shall not exceed 30 dBm Note 1: EIRP defined as antenna gain in a specified elevation direction plus the average AeroMACS transmitter power. While the instantaneous peak power from a given transmitter may exceed that level when all of the subcarriers randomly align in phase, when the large number of transmitters assumed in the analysis is taken into account, average power is the appropriate metric. Note 2: The breakpoints in the EIRP mask are consistent with the elevation pattern of a +15 dBi peak, 120 degree sector antenna as contained in ITU-R F.1336-2. Note 3: These values were derived using the worst-case analysis described. Other approaches involving higher powers may be acceptable, however additional analysis must be performed to ensure the total interference allowable at the FSS satellites, consistent with ITU requirements, is not exceeded. Note 4: If a sector contains multiple transmit antennas (e.g., MIMO), the specified power limit is the sum of the power from each antenna.
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