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 a specific focus on the radio interface protocol architecture for NR connected to 5GC. It explicitly excludes E-UTRA connected to 5GC, which is handled in the 36 series. Detailed protocol specifications are deferred to companion documents within the 38 series; this document operates at the Stage-2 architectural description level. A RAN or core engineer would open this document when needing a canonical architectural reference for NR/NG-RAN — for example, to understand the high-level protocol layering before diving into a specific 38-series companion spec, to orient themselves on how NG-RAN interfaces with 5GC, or to establish a shared architectural baseline during cross-domain design discussions. It serves as the primary entry point before engaging the detailed procedural and IE-level specifications elsewhere in the 38 series.

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