Anchorless Routing for URLLC Services in 5G Network

Cellular V2X is one of the most attractive use cases in 5G mobile network. Some V2X use cases require low latency communication between vehicles and/or vehicles and ITS servers, as well as IP session continuity for vehicles. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor point for each end point device. To address this issue, we propose to apply a new routing approach in 5G, which separates communication end point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor points found in conventional 3GPP mobile network systems. The comprehensive evaluation between the proposed anchorless routing and conventional 3GPP system routing proves the benefits of the proposed routing.