Transmit Power Control in IEEE 802.11 Cisco WLAN networks

Exchanging and processing radio raw data

the radio raw data that is processed by TPC is exchanged by access points in NDP, Node Discovery Protocol, messages.

An NDP message contains this information:

  • Radio identification,
  • Radio group identification,
  • IP address of corresponding controller,
  • Access point channel that serves clients,
  • Information about channel used for NDP purposes,
  • Transmit power level,
  • Antenna type or pattern.

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