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eAxC_ID Composer / Decomposer is an interactive tool for working with O-RAN fronthaul eAxC_IDs, where the 16-bit identifier is split into DU_Port_ID, BS_ID, CC_ID, and RU_Port_ID fields. Instead of hardcoding a fixed bit layout, the tool lets you define each field's bitmask yourself, so it adapts to any O-RAN eAxC_ID convention — including non-contiguous bit assignments — and flags overlaps or uncovered bits in real time on a live bit-grid. It supports two workflows: Construc

1. Introduction 5G NR fundamentally redesigned the user-plane architecture by introducing SDAP (Service Data Adaptation Protocol) above PDCP (Packet Data Convergence Protocol). LTE used a bearer-based QoS model. 5G uses a flow-based QoS model. This single architectural shift explains: Why SDAP was introduced Why PDCP evolved Why 5G scales better than LTE How URLLC, slicing, and dual connectivity are supported This article provides: Deep architectural explanation LTE vs 5G com