Frame-Level Integrated Transmission for Extended Reality over 5G and Beyond

Chen, Erkai; Dou, Shengyue; Wang, Shaobo; Cao, Youlong; Liao, Shuri

doi:10.1109/globecom46510.2021.9685604

Cited by 14 publications

(4 citation statements)

References 5 publications

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“…Thus, we can investigate the network capacity maximization problem, which maximizes the number of satisfied users under the data rate, reliability, and delay requirements of each user with a given bandwidth per BS. This problem can be expressed as follows [72]:…”

Section: Xr Capacity Improvementmentioning

confidence: 99%

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A new 5G radio evolution towards 5G-Advanced

Pang

Wang

Tang

et al. 2022

Sci. China Inf. Sci.

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The evolution of the fifth-generation (5G) new radio (NR) has progressed swiftly since the third generation partnership project (3GPP) standardized the first NR version (Release 15) in mid-2018. Nowadays, the world’s leading carriers are competing to provide various commercial services over 5G networks. Looking ahead to 2025 and beyond, it is expected that over 6.5 million 5G base stations will be installed to offer services to over 58% of the world’s population via over 100 billion 5G connections. Following the rapid development of 5G, an increasing number of commercialization use cases will drive the 5G network to continuously improve performance and expand capabilities. Hence, it is the right time to consider a well-defined framework and standardization for 5G NR evolution (5G-Advanced) to support commercialization between 2025 and 2030. First, this study addresses the key driving forces, requirements, usage scenarios, and capabilities of 5G-Advanced; then, it highlights the main technological challenges and introduces the top 10 promising technological directions in detail. Finally, other fascinating technological directions in 5G-Advanced are shortly mentioned.

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Section: Xr Capacity Improvementmentioning

confidence: 99%

“…System-level evaluation results are provided [72] to verify the effectiveness of the frame-level integrated transmission scheme. Figure 10 illustrates a performance comparison with an existing mechanism in terms of user satisfaction rate.…”

Section: Xr Capacity Improvementmentioning

confidence: 99%

A new 5G radio evolution towards 5G-Advanced

Pang

Wang

Tang

et al. 2022

Sci. China Inf. Sci.

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“…In addition to the 3GPP standards, the study in [6] focuses on the design and optimization of medium access control (MAC) scheduling to improve the system performance for XR services. A resource allocation problem is formulated to maximize the number of satisfied user equipment (UEs) under the data rate, reliability, and latency requirements for each UE.…”

Section: Introductionmentioning

confidence: 99%

“…It is noteworthy that the majority of the XR studies in the literature consider XR-only traffic cases [6]- [12], while a common scenario in real wide-area networks is when XR services coexist together with existing services such as besteffort enhanced mobile broadband (eMBB). The paper in [13] evaluates the performance of a 5G system with mixed XR and eMBB traffic.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Mixed Capacity of Extended Reality and Mobile Broadband Services in 5G-Advanced Networks

Paymard,

Amiri,

Kolding

et al. 2023

IEEE Access

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Extended reality (XR) is an emerging technology that has gained significant attention in the context of fifth-generation (5G) and 5G-Advanced cellular networks and beyond. One of the less explored areas for practical XR service deployments is the study of its interaction with the existing traffic such as enhanced mobile broadband (eMBB). This study explores the performance of having both XR and eMBB users simultaneously in a multi-cell network for two different indoor and outdoor deployment scenarios. We show that the main limitation to maximizing XR capacity in the mixed scenario is inter-cell interference (ICI) generated by eMBB users. ICI from eMBB results in a loss of about 80% in XR capacity when an XR source data rate of 45 Mbps and a strict packet delay budget (PDB) of 10 ms is enforced. To mitigate this, we propose new radio resource management enhancements that apply restrictions on eMBB radio resource usage to balance between eMBB and XR simultaneous capacity. With the proposed enhancements, maximum XR capacity can be maintained for the case with an XR source data rate of 45 Mbps and a PDB of 20 ms while restricting eMBB throughput by about 50%. The impact on eMBB throughput performance from adding XR users depends on the XR PDB, deployment environment, and the eMBB radio resource usage restriction. The results demonstrate that the eMBB throughput declines with a factor of 1 to 4 of the XR sum rate.INDEX TERMS eXtended reality (XR), mixed traffic, inter-cell interference (ICI), interference management, 5G-Advanced, system-level simulations (SLS).

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