Interference Management - Various Approaches.
Licence Exempt Bands –ITU Regulations
ISM bands include ITU Radio Regulation 5.150 unlicensed bands and bands allocated for low power devices. Lower power device frequencies refer to a whole range of frequencies from 160 KHz. to 10.55 GHz.
FCC – White Spaces: Decision to Open White Spaces to New Services, 2008.
The FCC approved the development of wireless devices that can use white spaces which are the unused broadcast TV spectrum between broadcast TV channels, which ranges from 512MHz to 698 MHz.
Industry Canada – Spectrum Transfer Policy Changes, 1998
IC introduced licensing policy changes in a process where a potential new service provider could apply to use un-utilized (otherwise assigned) frequencies in a geographical area. The result being that assigned but un-utilized frequencies would be re-assigned to interested parties who provided a ‘comprehensive’ plan to deploy mobile services. Where more than one party applies, Industry Canada awards spectrum authorizations based on a comparative review of accepted applications.
Ofcom Spectrum Usage Rights – Consultation
Ofcom in the United Kingdom is committed to implementing a spectrum policy which is to the greatest possible extent technology- and service-neutral – i.e. a licensee can use it, spectrum for many purposes using any technology (subject to international agreements, etc.). This approach imposes serious challenges to avoid interference as usage charges in various bands. In the consultation document referenced below, Ofcom considers how to deal with interference from adjoining geographies, interference from adjacent frequencies , out-of-band interference and interference caused by in-band emissions from the licence holder (See 4.3.2 of this section on categories of interference).
It suggests a standard way of establishing so-called spectrum user rights (SUG). Parties would, however, be able to agree on variations from these rights by commercial negotiation.