5G5G FundamentalsDraft — coming soon

NSA vs SA Architecture

NSA vs SA 5G architecture explained: how non-standalone and standalone deployment options differ, their signaling paths, and when operators choose each.

By Manas·5 min read·Updated 2026-07-18

This article is a placeholder. Full write-up coming soon.

NSA vs SA 5G architecture explained: how non-standalone and standalone deployment options differ, their signaling paths, and when operators choose each.

What this article will cover

  • What NSA (Option 3x) architecture looks like and why it was the first commercial path
  • What SA (Option 2) architecture looks like with a full 5G core
  • Anchor points: EPC vs 5GC, and the role of the eNB/gNB split
  • Migration path from NSA to SA
  • Trade-offs: time-to-market vs full 5G feature access
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