📡 PDCP Module‑2 TS 38.323

⚙️ Select upper/lower layers – real‑time functional diagram.

🧠 PDCP Services & Adaptation (TS 38.323 4.2.2, 4.3.1, 4.3.2)

📐 PDCP Functional View – bold & clear ⏺️ live update
⬜ Upper layer ⬜ PDCP functions ⬜ Lower layer

📘 3GPP references