TSCH Fast Synchronization scheduling Apparatus and method for TSCH in congested industrial wireless network

摘要

An objective of the present invention is to provide a scheduling apparatus and a scheduling method for fast synchronization to reduce listening time of nodes desiring to be joined by incorporating network congestion, an arrangement state of nodes, and quality of a communication channel. The scheduling apparatus for fast synchronization comprises: an RF transceiving module to transceive an RF signal from a peripheral channel; an RSSI reception and storage module to receive an RSSI value from an RF signal received by the RF transceiving module to store the RSSI value; a channel alignment module to substitute an RSSI value for each channel received by the RSSI reception and storage module (20) into a CQE formula to measure the CQE value of each channel, and align channels in a descending order (order of good channel quality) of CQE values based on the measured CQE values; and a channel setting and ADV receiving module to receive one channel with the highest CQE value from the channel alignment module to set the channel, and start listening for ADV reception from the set channel.