ISED RSS-247 Section 7.3.6.3: Dynamic Frequency Selection for Client Devices

Innovation, Science and Economic Development Canada (ISED) outlines the technical requirements for licence-exempt local area network (LE-LAN) devices operating in the 5 GHz frequency bands within standard RSS-247.

Section 7.3.6.3 focuses specifically on Dynamic Frequency Selection (DFS) requirements, detailing the operational rules that apply to client devices that do not have built-in radar detection capabilities.

Key Takeaways

• DFS Compliance: Licence-exempt devices operating in specific 5 GHz bands must incorporate DFS mechanisms to prevent interference with radar systems, such as meteorological and military radars.

  
  

• Client Device Distinction: Section 7.3.6.3 clarifies the exact requirements and responsibilities for client devices lacking radar detection capabilities. These devices rely on a master device to manage channel availability and switching.

  
  

• Operational Rules: Non-radar client devices must cease transmissions or vacate channels when instructed by the master device upon the detection of a radar signal, ensuring shared spectrum protection.

View the ISED publication here.

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