Proposal of TAS Hypercycle Expansion Suppression Method by Transmission Cycle Period Conversion

Abstract

IEEE802.1Qbv (Time-aware Shaper: TAS) has recently been applied within user networks (NWs) for realizing factory automation and remote control. As mass customization matures, TAS is expected to extend its application coverage to not only user NWs but also wide-area NWs to enable real-time communication for remote control and cloud-based application use. However, designing a TAS schedule is an NP-hard problem, which becomes more difficult as the gate control list (GCL) hypercycle increases. In this paper, we propose a method to convert the transmission cycle of Talker to a different cycle time for TAS scheduling in a carrier NW. This results in a smaller GCL hypercycle in the carrier NW.Our evaluation experiments show that the GCL computation time of the proposed method is shorter. This paper contributes to the realization of TAS in the wide-area NW, which has not been discussed so far.