1. An access point apparatus for managing an operating channel of a first Radio Access Technology (RAT) over a communication medium shared with a second RAT, comprising:a transceiver configured to receive from each of a plurality of access terminals one or more channel measurement reports for a current operating channel of the first RAT;
a channel quality analyzer configured to determine a channel quality metric for the current operating channel based on the channel measurement reports, the channel quality metric indicating a number or proportion of the access terminals with a service level below a service level threshold;
a channel scanner configured to trigger a channel scan in response to the indicated number or proportion of the access terminals being above a threshold number or proportion of the access terminals, wherein the threshold number or proportion of the access terminals correspond to less than all of the access terminals; and
a channel selector configured to select a new operating channel based on the channel scan,
wherein the channel scanner is configured to trigger the channel scan further in response to the channel quality metric indicating that the service level is below the service level threshold for a threshold amount of time.