Methods and apparatus of cell detection include determining whether communication between a user equipment and a serving cell satisfies a serving cell unsuitability condition. The methods and apparatus further include performing one or more autonomous search procedures based on whether the serving cell unsuitability condition has been satisfied. Moreover, the methods and apparatus include conducting cell reselection based on one or more results from the one or more autonomous search procedures, wherein the one or more results indicate at least one suitable cell for reselection.