A control method of a communication system including at least one sensor that a user wears, a wireless communication apparatus and a coordinator, the method comprising: transmitting (S952, S1056, S1152), by the wireless communication apparatus, a proxy authority request for proxy with respect to the at least one sensor and the coordinator, to the coordinator; receiving, by the wireless communication apparatus, a proxy authority from the coordinator; searching (S955, S1054, S1154), by the wireless communication apparatus, for the at least one sensor that the user wears; forming a pairing with the at least one searched sensor based on the proxy authority; transmitting (S957, S1056, S1156), by the wireless communication apparatus, an association information request comprising information on the coordinator, to the at least one searched sensor; receiving (S958, S1057, S1157), by the wireless communication apparatus, the association information comprising an identifier of the at least one searched sensor based on the association information request; transmitting (S961, S1060, S1160), by the wireless communication apparatus, an association proxy request to the coordinator for an association proxy for the association between the at least one searched sensor and the coordinator; and receiving (S962, S1061, S1161), by the wireless communication apparatus, the association proxy comprising the identifier of the at least one searched sensor in response to the association proxy request for direct communication between the coordinator and the at least one searched sensor, wherein the proxy authority request comprises number (903, 1003) of the at least one sensor that the wireless communication apparatus is to use or at least a user identifier related to the at least one sensor, wherein the proxy authority comprises an address information (914, 1014, 1114) for the at least one sensor generated based on the number of the at least one sensor or the at least a user identifier. transmitting (S952, S1056, S1152), by the wireless communication apparatus, a proxy authority request for proxy with respect to the at least one sensor and the coordinator, to the coordinator; receiving, by the wireless communication apparatus, a proxy authority from the coordinator; searching (S955, S1054, S1154), by the wireless communication apparatus, for the at least one sensor that the user wears; forming a pairing with the at least one searched sensor based on the proxy authority; transmitting (S957, S1056, S1156), by the wireless communication apparatus, an association information request comprising information on the coordinator, to the at least one searched sensor; receiving (S958, S1057, S1157), by the wireless communication apparatus, the association information comprising an identifier of the at least one searched sensor based on the association information request; transmitting (S961, S1060, S1160), by the wireless communication apparatus, an association proxy request to the coordinator for an association proxy for the association between the at least one searched sensor and the coordinator; and receiving (S962, S1061, S1161), by the wireless communication apparatus, the association proxy comprising the identifier of the at least one searched sensor in response to the association proxy request for direct communication between the coordinator and the at least one searched sensor,