A baseband unit in the equipment room, expansion units on each floor, pRRUs at the edge. Fiber cascade, hybrid power/fiber cable or PoE. Built for large, heavily partitioned indoor spaces such as workshops, office buildings and surface buildings at mine sites.
- Three-tier architectureBBU → EU → pRRU, allocated per building and floor
- Star and chain mixedWorks in older buildings where cable routes are constrained
- Two power optionsHybrid power/fiber cable or PoE, whichever the site allows
- Positioning readypRRU accepts external UWB or Bluetooth anchors
Typical scenarios
| pRRU per set | 64 |
|---|---|
| EU per set | 8 |
| Bandwidth per cell | 100 MHz |
| Power per channel | 250 mW |
| Antenna | 4T4R, internal or external |
| Frequency | 2.6 / 3.5 GHz |
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