Document ID: chunk:federal_register_of_legislation:F2018L01063:schedule:3:p2
Version: federal_register_of_legislation:F2018L01063
Segment Type: schedule
Provision Reference: sch 3 (pt 2/5)
Character Range: 11152–14469

but these do not provide protection along the frequency boundaries of a spectrum licence throughout the entire geographic area. Because of the nature of out-of-band interference, emission limits cannot be used to provide protection from out-of-band interference for devices that are located near each other, for example, at multi-operator sites.
           (4) Radiocommunications transmitters operating under a Radiodetermination apparatus licence are not required to adhere to the device boundary criteria, provided the licensee implements measures to minimise the impact on services operated under 3.4 GHz band spectrum licences. In-band interference from radiodetermination licences is expected to be transient in nature. In the event this is not the case, the radiodetermination licensee will be required to implement further mitigation measures to reduce the impact on services operated under 3.4 GHz band spectrum licences.  To further assist with managing interference, when planning and operating fixed or mobile wireless networks, spectrum licensees should also have regard to subclause 3.2(4) of these guidelines.
           (5) Spectrum licensees must accept any in-band interference to radiocommunications receivers operating in:

              (a)       the 3425-3492.5 MHz and 3542.5-3575 MHz frequency bands caused by radiocommunications transmitters operating under an apparatus licence issued before 14 December 2015; or

              (b)      the 3575-3700 MHz frequency bands caused by radiocommunications transmitters operating under an apparatus licence issued before 9 March 2018.

           This subsection does not apply to radiodetermination apparatus licences.
           (6) The interference management framework, if any is required, for devices operated under a class licence is contained in the relevant class licence.
           3.2 Out-of-band interference
           (1) Out-of-band interference is difficult to predict because the levels and frequencies of unwanted emissions depend on both the nearness of, and the operating frequencies of, radiocommunications transmitters and radiocommunications receivers that are close in terms of both frequency and distance.  In addition, out-of-band interference:

             (a) can extend for many Megahertz either side of the frequency boundary of a spectrum licence;

             (b) is dependent on the quality of the radiocommunications receiver as well as the levels of the radiocommunications transmitter emission; and

           (c) is difficult to model accurately.
           (2) If emission limits were used to manage out-of-band interference for devices in close proximity, the interference modelling inaccuracy would require large probability margins to be added to those limits.  These margins would place severe constraints on use of the spectrum because the frequency boundaries of a licence extend throughout the entire geographic area of a licence. Therefore, emission limits that manage out-of-band interference throughout the geographic area of a spectrum licence cannot be used because they would lead to a severe loss of utility of the spectrum on both sides of the frequency boundary.
           (3) Instead of making large tracts of spectrum space unusable through the imposition of emission limits, out-of-band