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5G Fundamentals
Non-Standalone 5G deploys NR radio alongside the existing LTE Evolved Packet Core without requiring a new 5G Core network. The LTE eNB serves as the master node while the 5G gNB operates as a secondary node. Together they form an EN-DC bearer, which stands for E-UTRAN NR Dual Connectivity, aggregating LTE and NR radio resources to boost throughput. All control plane signaling still flows through the eNB to the MME over the S1-MME interface. This approach enabled operators to launch 5G services rapidly using their existing core infrastructure.
Try these first, even if you're not sure. Guessing primes your brain.
An operator wants 5G live within a year but a new core takes three years. What shortcut works?
In NSA, a phone connects to both 4G and 5G. Which radio handles signaling to the core?
An NSA operator wants to offer factories a dedicated slice with its own SLA. Why is that blocked?
Answer all 3to continue — it's OK to be wrong.