22Recommended preliminary coordination procedures

22 Recommended preliminary coordination procedures

(1) Before a radiocommunications transmitter is included in the Register for a 3.4 GHz spectrum licence, the licensee should have regard to radiocommunications receivers included in the Register for other 3.4 GHz spectrum licences. (2) When planning to operate a fixed transmitter under a 3.4 GHz spectrum licence, the licensee should coordinate with any fixed receivers included in the Register for other 3.4 GHz spectrum licences. The coordination should: (a) use the details of each fixed receiver, as included in the Register; and (b) use the level of protection set out in the subsection 145(4) determination; and (c) use a suitable propagation model to model path loss between the fixed transmitter and each fixed receiver; and (d) take into account the terrain and any other relevant factors.

Note: Example for paragraph (c): The propagation model in the latest version of ITU-R Recommendation P.526 “Propagation by diffraction” is an example of a suitable propagation model. ITU-R Recommendation P.526 is available, free of charge, from the International Telecommunication Union’s website at www.itu.int.

(3) If such coordination indicates that harmful interference may occur to a fixed receiver as a result of operating the fixed transmitter, the licensee should consider: (a) replanning the fixed transmitter to avoid the harmful interference; or (b) negotiating with the licensee of the affected 3.4 GHz spectrum licence to find a resolution. (4) If harmful interference cannot be avoided in accordance with subsection (3), or another agreement between affected licensees cannot be reached, interference may be managed in accordance with a condition in a 3.4 GHz spectrum licence about synchronisation requirements.

Note: For a radiocommunications transmitter with AAS, the radiated power in the direction of a radiocommunications receiver operated under a different licence is defined as the sum of the gain of the antenna towards the direction of the receiver (accounting for azimuth and elevation) and the total radiated power (measured in dBm). This allowance is based on the assumption that beam pointing angles or power, or both, can be controlled dynamically to ensure that a defined level of radiated power in a specific direction is not exceeded.