Spectrum reclaiming in a leased spectrum system

This disclosure is directed to spectrum reclaiming in a leased spectrum system. A spectrum exchange coordinator (SEC) may be interposed between a spectrum owner and at least one operator to facilitate the leasing and reclaiming of spectrum. Upon occurrence of a trigger, the SEC may then determine a procedure for allowing the spectrum owner to reclaim the leased spectrum. The spectrum owner may be allowed to reclaim the leased spectrum in full based on an agreement. If not previously agreed to, the spectrum owner may be allowed to reclaim at least part of the spectrum. These operations may include a dual risk evaluation to determine how reclaiming the leased spectrum will affect quality of service (QoS). Partial or gradual reclaiming may then allow the leased spectrum to be reclaimed while minimizing impact. Examples of gradual reclaiming may be based on a time domain, frequency domain, or cellular basis.