DEVICE FOR WIRELESS NETWORK AND COMPUTER READABLE RECORDING MEDIUM INCLUDING COMMUNICATION METHOD THEREOF

摘要

An upper node and a lower node which communicate with each other in a wireless network, and a computer readable recording medium including a program for executing a communication method thereof, are provided. The upper node determines priorities of the plurality of lower nodes and transmits a beacon message including information on the priorities determined by the upper node to the plurality of lower nodes, and the plurality of lower nodes determine priorities based on the beacon message received from the upper node. The upper node transmits first data to the plurality of lower nodes in a first period of an active period in an indirect data transmission method, and the plurality of lower nodes transmit second data to the upper node based on the determined priorities in a second period of the active period, in which the lower nodes communicate with the upper node, in a direct data transmission method. Accordingly, waste of battery power in the lower node can be prevented.

主权项

1. An upper node which communicates with a plurality of lower nodes in a wireless network, the upper node comprising:
a communicator configured to communicate with the plurality of lower nodes using a beacon message; and a processor configured to:
control the communicator to transmit first data to the plurality of lower nodes in a first period of an active period, in which the upper node communicates with the plurality of lower nodes using the beacon message, in an indirect data transmission method, andcontrol the communicator to receive second data from the plurality of lower nodes according priorities of the plurality of lower nodes in a second period of the active period in a direct data transmission method.