Dynamic Spectrum Access (DSA) is a technique by which a radio system dynamically adapts to the local radio spectrum environment by determining the spectrum available at specific locations and at a specific time. Currently there are two types of DSA systems in Canada, Automated Frequency Coordination (AFC) and White Space.
AFC System (5925-6875 MHz)
An ISED-designated database-driven system that maintains records of protected licensed systems operating in the 5925-6875 MHz frequency band, as outlined in the DBS-06 standard. The AFC system determines a list of available frequencies and associated maximum power levels for use by a standard-power Radio Local Area Network (RLAN) device at a specific time and geographic location.
Associated Policy:
- SMSE-006-21: Decision on the Technical and Policy Framework for Licence-Exempt Use in the 6 GHz Band, May 2021
Associated Technical and Operational Requirements:
- DBS-06 — Automated Frequency Coordination (AFC) System Specifications for the 6 GHz Frequency Band (5925-6875 MHz)
- RSS-248—Radio Local Area Network (RLAN) Devices Operating in the 5925-7125 MHz Band
- CPC-4-1-02 — Application Procedures for Automated Frequency Coordination System Administrators (AFCSAs)
Associated Data and References:
White Space System
White space refers to spectrum in specific frequency bands that is not being used by other licensed radio services in certain geographic areas, thus making it potentially available to support delivery of other services such as wireless broadband Internet. White space applications are presently focused on making use of unused spectrum in over-the-air television bands.
Associated Policies:
- Framework for the Use of Certain Non-broadcasting Applications in the Television Broadcasting Bands Below 698 MHz October 2012
- Decision on the Technical and Policy Framework for White Space Devices March 2019
Associated Technical and Operational Requirements:
- DBS-01 — White Space Database Specifications
- RSS-222 — White Space Devices (WSDs)
- CPC-4-1-01 — Application Procedures for White Space Database Administrators (WSDBAs)
Associated Data and References: