Toward 6G-Enabled URLLCs: Digital Twin, Open Ran, and Semantic Communications

Recently, the concept of digital twin (DT), open radio access Network (O-RAN) and the adoption of semantic communications (SC) have been labeled as keystone technologies towards the deployment of 6G networks. This article aims to provide a comprehensive vision of how a DT-en-abled and SC based O-RAN architecture can sub-stantially contribute towards the achievement of ultra-reliable low-latency communications (URLLCs) requirements essential for the deployment of the innovative 6G-oriented services. A brief overviews about each single component are primarily provided. Subsequently, potential use cases and services delivered through such unified network framework are illustrated. Challenges and future research directions are also highlighted and discussed.