Energy-saving strategy under multi-cell overlapping and covering

The invention relates to an energy-saving strategy under multi-cell overlapping and covering, comprising the steps of: in a communication system, when in idle communication, firstly switching a part of users in microcells with lower loads into neighbor microcells and macrocells which have an overlapped part with the covering range of the microcells with lower loads, and adopting the remaining resources of the neighbor microcells and the macrocells are utilized to accept all the users of the microcells with lower loads, so that the microcells are closed. The method has the beneficial effects that as the macrocells do not have enough resources to accept all the users of the microcells to be switched, so that the microcells can not be closed and the energy of the system can not be saved. In the energy-saving strategy under multi-cell overlapping and covering, not only are the remaining resources of the neighbor microcells considered, but also all the users of the microcells to be closed can be accepted furthest, so that the microcells can be closed and the energy of the system can be saved.