  One of the rapidly emerging services for fifth-generation (5G)-Advanced is
eXtended Reality (XR) which combines several immersive experiences and cloud
gaming services. Those services are demanding as they call for relatively high
data rates under tight latency constraints, sometimes also referred to as
dependable real-time applications. Supporting as many XR users per cell
requires highly efficient radio solutions. In this paper, we propose an
enhanced channel quality indicator (CQI) that results in a better link
adaptation to unleash the full performance potential of code block group (CBG)
based transmissions for XR cases. We present both an analytical analysis of the
related problems and solutions, as well as an extensive dynamic system-level
performance assessment in line with the 3rd generation partnership project
(3GPP)-defined advanced simulation methodologies. Our results show an increased
XR system capacity of 17% to 33% as compared to what can be supported by
current 5G systems with baseline CQI schemes. We also present enhanced CQI
complexity-reducing techniques based on derived closed-form expressions that
are attractive to the user equipment (UE) implementation.
