Disclosed herein are methods and systems that may help to dynamically schedule data transmissions in accordance with a fairness policy between different classes of a users. An example method may be implemented in an access network that is configured for carrier-aggregation service via a plurality of component carriers in a given coverage area, and involves: (i) determining a usage level in the given coverage area, and (ii) determining that the usage level in the given coverage area is greater than a threshold usage level and responsively: (a) determining relative carrier-aggregation capabilities between two or more classes of user equipment (UE) that have established data connections in the coverage area, and (b) adjusting a per-carrier scheduling ratio for the given coverage area based on the relative carrier-aggregation capabilities between the two or more UE classes.