Data transmission and reception method in zigbee system and coodinator and device thereof

It discloses a coordinator and a device using a data transmission and reception method, the method in the ZigBee system. Mediate at least one device and the device according to the invention (coordinate), and the frame pending bit value (Frame Pending bit) in the method in a ZigBee system comprising a coordinator for transmitting and receiving data to the data transmission method of a coordinator, a beacon frame If it determined as a value indicating the direct transmission method of the data, to generate the address of the device to receive data and a data-beacon frame includes the transmission time of transmitting the data in a step and a transmission time of the transmission. Accordingly, it is possible to prevent a waste of time and power for transmitting and receiving data. Direct transmission scheme, a slot, the beacon frame