Network based on ieee 802.15.4 protocol for supporting mobility and setting method the same thereof

A network based on an IEEE(Institute of Electrical and Electronics Engineers) 802. 15. 4 protocol for supplying mobility and a setup method thereof are provided to control each of fixed devices directly by using ID information and address information by receiving the information from a coordinator, thereby easily controlling the fixed devices even out of a power range of the coordinator. At least one of fixed devices(121-124) performs predetermined actions as having previously set addresses and IDs. A coordinator(110) has address information and ID information of the fixed devices, and forms a network in connection with the fixed devices. Mobile devices(130,130a,130b) are connected to the network through the coordinator, and receive the address information and the ID information of the fixed devices to control the fixed devices by using the received information.