New automatic de-registration method utilizing a timer in the IEEE802.1 TSN

摘要

According to the Convergence of a vehicle and IT, In-Vehicle-Network (IVN) is complicated and the multimedia data is increased. Ethernet guarantees Quality of Service (Qos) of the existing Control Area Network (CAN) communication and has a high bandwidth. As a result, the Ethernet is recently developed a new standard. IEEE 802.1 Audio Video Bridging (AVB) supports to handle priority and queuing for various traffics in the IVN unlike the existing Ethernet. IEEE 802.1 Qat is a standard that guarantees the reservation of the Audio/Video stream. However, IEEE 802.1 Qat did not specifically explain de-registration to release a reservation. In order to improve IEEE802.1 AVB, IEEE802.1 Time Sensitive Network (TSN) is currently developed. However, de-registration has not been specifically explained as in IEEE 802.1 AVB. If the de-registration is not specifically mentioned, It may cause a waste of resources. AS a result, the network causes the loss in terms of efficiency. In order to resolve this problem, we show the method of de-registration of a message type shown in the existing standard. Accordingly, we propose a variety of problems of an existing message types. Next, to resolve the various problems of the existing de-registration of message types, we propose a new automatic de-registration mechanism utilizing a timer. Finally, we approach de-registration of an existing message type through the worst-case and prove that the new automatic de-registration mechanism is an optimization method.