US Patent 7917183 Method of controlling idle mode in broadband wireless access system

A method of controlling an idle mode in a broadband wireless access system is disclosed, in which paging information is allocated to a mobile subscriber station to enter an idle mode via a base station belonging to at least two paging groups and in which the idle mode is efficiently controlled by improving a method of changing paging information of a mobile subscriber station in idle mode. The present invention includes the steps of receiving a message requesting a transition to the idle mode from a mobile subscriber station, transmitting paging information for the entire paging groups of the base station to the mobile subscriber station, and transmitting a paging message to the mobile subscriber station according to the paging information of each of the paging groups to which the base station belongs.