  The transition towards the sixth-generation (6G) wireless telecommunications
networks introduces significant challenges for researchers and industry
stakeholders. The 6G technology aims to enhance existing usage scenarios,
particularly supporting innovative applications requiring stringent performance
metrics. Among the key performance indicators (KPIs) for 6G, immersive
throughput, hyper-reliability, and hyper-low latency must be achieved
simultaneously in some critical applications to achieve the application
requirements. However, this is challenging due to the conflicting nature of
these KPIs. This article proposes a new service class of 6G as immersive, hyper
reliable, and low-latency communication (IHRLLC), and introduces a potential
network architecture to achieve the associated KPIs. Specifically, technologies
such as ultra-massive multiple-input multiple-output (umMIMO)-aided terahertz
(THz) communications, and reconfigurable intelligent surfaces (RIS) are viewed
as the key enablers for achieving immersive data rate and hyper reliability.
Given the computational complexity involved in employing these technologies,
and the challenges encountered in designing real-time algorithms for efficient
resource allocation and management strategies as well as dynamic beamforming
and tracking techniques, we also propose the involvement of other potential
enabling technologies such as non-terrestrial networks (NTN), learn-to-optimize
(L2O) and generative-AI (GenAI) technologies, quantum computing, and network
digital twin (NDT) for limiting the latency.
