A method, a user terminal and a network side equipment for improving network resource occupation are disclosed. A dormancy timer is set for the user terminal and a time threshold of the dormancy timer is adjusted dynamically by monitoring a resource occupation rate of the communication system, where time threshold of the dormancy timer is inversely proportional to the resource occupation rate. In this way, relatively longer time threshold of the dormancy timer may be set when a system occupation rate is low, so as to improve user experience; and relatively shorter time threshold of the dormancy timer may be set when the system occupation rate is high, so as to provide a higher capacity and provide services for more user terminals.