BBU–RRU
EN
Huawei board category illustration
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Huawei

WBBPb

What it does: UMTS signal processing. Interfaces and data rates: 3 × CPRI 1.25/2.5 Gbit/s; star/chain/ring.

4 part numbers: 03020PSQ= / 03020PSR= / 03020PSS= …

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Main specifications

FamilyBBU3900
SlotsBBU3900, UMTS: without additional CPRI-ports — 3 > 0 > 1 > 2 > 4 > 5; with additional CPRI — 3 > 2 > 0 > 1 > 4 > 5
CapacityUMTS 1T2R, by variant: b1 — 3 cells, UL/DL 64/64 CE, HSDPA/HSUPA 64/64 UE; b2 — 3 cells, 128/128 CE, 128/96 UE; b3 — 6 cells, 256/256 CE, 144/96 UE; b4 — 6 cells, 384/384 CE, 144/96 UE; 15 HSDPA codes per cell; license required
SynchronizationIntegrated clock unit, linked to backplane BBU
ChassisBBU3900
ModulesIntegrated functional processing units baseband, switching, service interface and synchronization; swappable CPRI SFP
Functional roleProcessing baseband UL/DL and communication with radio modules via CPRI
Interfaces / connectors3 × SFP CPRI
Interfaces and data rates3 × CPRI 1.25/2.5 Gbit/s; star/chain/ring
Power supply+12 V DC from backplane when installed in BBU3900 s UPEUa/UPEUc/UPEUd
Additional technical information
Installation environment
In a BBU3900 slot
Technologies
UMTS
Bandwidth
UMTS: 5 MHz per carrier
Architecture
Replaceable baseband-board: signaling processing and UL/DL, CPRI, internal switching, service and clock units; connection via backplane BBU
Subtype
Main processing board bands WCDMA
Details
CPRI: star, chain and ring; VAM on different RF-modules/CPRI reduces the number of supported 2T2R cells by half
Connection notes
Radio units via CPRI

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