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Smart glasses that support augmented reality (AR) have the potential tobecome the consumer's primary medium of connecting to the future internet. Forthe best quality of user experience, AR glasses must have a small form factorand long battery life, while satisfying the data rate and latency requirementsof AR applications. To extend the AR glasses' battery life, the computation andprocessing involved in AR may be offloaded to a companion device, such as asmartphone, through a wireless connection. Sidelink (SL), i.e., the D2Dcommunication interface of 5G NR, is a potential candidate for this wirelesslink. In this paper, we use system-level simulations to analyze the feasibilityof NR SL for supporting AR. Our simulator incorporates the PHY layer structureand MAC layer resource scheduling of 3GPP SL, standard 3GPP channel models, andMCS configurations. Our results suggest that the current SL standardspecifications are insufficient for high-end AR use cases with heavyinteraction but can support simpler previews and file transfers. We furtherpropose two enhancements to SL resource allocation, which have the potential tooffer significant performance improvements for AR applications.

Can 5G NR Sidelink communications support wireless augmented reality?