to another pattern a channel assignment operation is dynamically operated according to the changed traffic pattern fig1 is a conceptual diagram illustrating a method for providing only a necessary area with a wireless communication service in wireless home lan system environments in accordance with a preferred embodiment of the present invention referring to fig1 the antenna modules 25 are mounted to the ceiling upon receiving a control signal from the control agent 21 the antenna modules 25 are selectively activated such that a communication service is available for only a specific area as apparent from the above description the wireless home lan system according to the present invention selectively activates antennas in only a specific area requesting a communication service using a single controller and a plurality of antennas connected to the controller such that it can solve performance anomalies and inter cell frequency interference problems also the wireless home lan system controls propagation beams to be concentrated on a minimum area resulting in improved security the wireless home lan system distributes traffic load using a default channel when the traffic load is concentrated on a specific area such that it can maintain a constant output level the wireless home lan system dynamically assigns resources to only a necessary area according to a communication environment of a cell area such.