NR; NR and NG-RAN Overall description; Stage-2

Grounded in the official 3GPP Scope excerpt

TS 38.300 provides an overview and overall description of NG-RAN, with specific focus on the radio interface protocol architecture for NR connected to 5GC. It is explicitly scoped to NR; E-UTRA connected to 5GC falls under the 36 series. Detailed protocol specifications are deferred to companion documents within the 38 series, making this document the stage-2 architectural reference rather than a procedure-level specification. A RAN or core engineer would open this document when needing an authoritative, high-level understanding of how NG-RAN is structured and how the NR radio interface protocols are architecturally organized relative to 5GC. It serves as the natural starting point before diving into the detailed 38-series companion specs—for example, when onboarding to NR development, scoping an implementation, resolving an architectural ambiguity about protocol layering, or establishing which specification owns a particular functional area.

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