SCS doesn’t change overall spectral efficiency — it changes how you tune latency / throughput per RB or users.
Low SCS (15 kHz)
- Band → 700 MHz | Low Band
- RBs → More
- Users → More users scheduled
- Single User Throughput → Low
- Latency → High
- Use Case → Coverage
Mid SCS (30 kHz)
- Band → 3.5 GHz | C-Band
- RBs → Medium
- Users → Balanced
- Single User Throughput → Good
- Latency → Medium
- Use Case → Throughput
High SCS (120 kHz)
- Band → 25 GHz | mmWave
- RBs → Few
- Users → Less
- Single User Throughput → Very High
- Latency → Ultra Low
- Use Case → Latency
One parameter. Three completely different network behaviors.
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