Multi-tier coordinated dynamic frequency selection (DFS) system

A method comprising:

• receiving, by a first wireless device, first data, wherein the first data comprises, for each DFS channel of a first set of DFS channels, i) an identifier of the respective DFS channel of the first set of DFS channels, ii) a first value indicating a bandwidth of the respective DFS channel of the first set of DFS channels, iii) a second value indicating a duration of a channel availability check (CAC) associated with the respective DFS channel of the first set of DFS channels, iv) first timestamp data associated with a prior CAC associated with the respective DFS channel of the first set of DFS channels, and v) second timestamp data of a last radar event associated with the respective DFS channel of the first set of DFS channels;
• performing a CAC on each DFS channel of the first set of DFS channels, based on the first value and the second value;
• identifying, in the first set of DFS channels, one or more DFS channels in which no radar event is found;
• generating second data comprising the identifier associated with the respective DFS channel of the one or more DFS channels, the first value indicating the bandwidth of the respective DFS channel of the one or more DFS channels, and third timestamp data associated with each DFS channel of the one or more DFS channels;
• and
• sending the second data to a second wireless device.

A method comprising:

• sending, by a first wireless device, a first request;
• receiving, by the first wireless device from a second wireless device, a first response to the first request, the first response comprising first data and a first receive signal strength indicator (RSSI) value associated with the first request, wherein the first RSSI value is indicative of a first distance between the first wireless device and the second wireless device, wherein the first data comprises, for each DFS channel of a first set of DFS channels, i) an identifier of the respective DFS channel of the first set of DFS channels, ii) a first value indicating a bandwidth of the respective DFS channel of the first set of DFS channels, and iii) first timestamp data of a last radar event on the respective DFS channel of the first set of DFS channels;
• determining that the first RSSI value minus a value representing a transmit power of the first wireless device, is greater than a threshold value, wherein the threshold value represents a geographical area surrounding the second wireless device;
• and
• storing, by the first wireless device, the first data;
• sending, by the first wireless device on a first DFS channel of the first set of DFS channels, second data with a third wireless device;
• detecting a radar event on the first DFS channel,
• updating the first timestamp data to second timestamp data of a last radar event on the first DFS channel;
• and
• sending, by the first wireless device over a second DFS channel of the first set of DFS channels, third data to the third wireless device.