Beacon

Beacon

The Beacon request/report pair enables a STA to request from another STA a list of APs whose beacons it
can receive on a specified channel or channels. This measurement may be done by active mode (like active
scan), passive mode (like passive scan), or beacon table modes. If the measurement request is accepted and
is in passive mode, a duration timer is set. Then the measuring STA monitors the requested channel;
measures beacon, probe response, and measurement pilot power levels (received channel power indicator
(RCPI)); and logs all beacons, probe responses, and measurement pilots received within the measurement
duration. If the measurement request is in active mode, the measuring STA sends a probe request on the
requested channel at the beginning of the measurement duration; then monitors the requested channel;
measures beacon, probe response, and measurement pilot power levels (RCPI); and logs all beacons, probe
responses, and measurement pilots received within the measurement duration. If the request is beacon table
mode, then the measuring STA returns a Beacon Report containing the current contents of any stored beacon
information for any supported channel with the requested service set identifier (SSID) and basic service set
identifier (BSSID) without performing additional measurements.