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    DBS5900 Distributed Base Stations

    wireless access device for the eLTE wireless broadband private network solution


  • Overview
  • Features
  • Specifications

DBS5900 Distributed Base Stations

The DBS5900 is a wireless access device for the eLTE wireless broadband private network solution. It provides wireless access functions, including air interface management, access control, mobility control, and user resource allocation. The DBS5900 can meet the needs of industry users for wireless broadband access and multimedia critical communication, and obtain better coverage and user experience. The DBS5900 adopts a modular structure, with the baseband unit BBU and remote radio unit RRU deployed separately. The DBS5900 has the characteristics of small size, low power consumption, flexible installation, and rapid deployment.
Advanced Technologies

Supported Frequency Band

The DBS5900 has two frequency mode: FDD and TDD, supporting 3GPP standard spectrum like FDD 700M/800M/850MHz, TDD, and other industry spectrum like TDD 400MHz and 1.8GHz

Open Architecture

Distributed Architecture

The distributed architecture is adopted to separate the RF unit part of the base station from the baseband unit part, connecting the two parts through optical fiber, which minimizes the feeder loss and helps to improve the coverage of the base station. The RF unit is no longer limited to the equipment room. It can be flexibly installed by means of poles or walls, realizing the network construction in zero room, reducing the network construction cost by at least 30%, and greatly shortening the network deployment period

Converged Forwarding

Critical Communication

The DBS5900 supports the critical communication QoS Class Identifier(QCI) to ensure the performance of critical communications


Model number BBU5900(3GPP)
Form Indoor,Outdoor
Board supported(Macro) Main control board UMPTe2, UMPTe3, UMPTg2, UMPTg3
Baseband processing board UBBPe4, UBBPg1a, UBBPg2
Satellite-card board USCUb18, USCUb16, USCUb14, USCUb11
Fan module FANf
Power module UPEUe
Environment monitoring unit UEIUb
Equipment specifications Input power UPEUe:-48V DC
Voltage range -38.4V DC to -57V DC
Dimensions (H x W x D) 86 mm x 442 mm x 310 mm (3.39 in. x 17.40 in. x 12.20 in.)
Weight 18 kg (39.69 lb) in full configuration
Heat dissipation capability 2100 W (configured with a FANf)
Operating Temperature Long-term operation: –20°C to +55°C (–4°F to +131°F)
Relative humidity 5% RH to 95% RH
Protection Rating IP20
Air Pressure 70 kPa to 106 kPa
Noise sound power level ETS 300 753 3.1
Highlight Highlight1 6 RAT in One Box
Highlight2 Support 5G long-term evolution
Model(Replaceable) RRU5901(1800)
RRU Form Blade
Basic Specifications Frequency Band (MHz) 1800
Frequency Range (MHz) UL:1710 to 1785
DL:1805 to 1880
IBW(MHz) 45
Protocal FrequencyBand Band 3/n3
RF Specifications TX/RX Channel 4T4R
NR SUL Carrier Configuration 2L1N(SUL);
Carrier Capacity GSM: 8 carriers
LTE FDD: 2 carriers
LTE NB-IoT: 8 carriers when the NB-IoT multi-carrier function is enabled and 1 carrier when the NB-IoT multi-carrier function is disabled
NR SUL: 1 carrier
NR FDD: 2 carriers
Output Power(W) 4x40W
GSM Receiver Sensitivity with One Antenna (dBm) -114.0
LTE FDD Receiver Sensitivity with One Antenna (dBm) -106.6
NB-IoT Receiver Sensitivity with One Antenna (dBm) -127.3
Support Band LTE FDD: 5/10/15/20
NR FDD: 5/10/15/20/30
NR FDD Receiver Sensitivity with One Antenna (dBm) -106.3
RX Frequency Band (MHz) 1710 to 1785
TX Frequency Band (MHz) 1805 to 1880
Engineering Specifications Dimensions (H x W x D) 400 mm x 300 mm x 100 mm (15.75 in. x 11.81 in. x 3.94 in.) (12 L)
Weight (kg) 15 kg (33.08 lb, excluding mounting kits)
Typical Power Consumption for an RRU(W) Typical Power Consumption (W)a: 337
a: The typical power consumption of an RF module is measured when the ambient temperature is 25°C (77°F) and the traffic load reaches 50%. The actual power consumption has a 10% deviation from this value.
Operating Temperature Without solar radiation: –40°C to +55°C (-40°F to +131°F)
With solar radiation of 1120 W/m2: -40°C to +50°C (-40°F to +122°F)
Protection Rating IP65
Relative Humidity 5% RH to 100% RH
Absolute humidity 1 g/m3 to 30 g/m3
Air Pressure 70kPa to 106kPa
Anti-Seismic Performance NEBS GR63 zone4
Surge Protection Specifications DC:20kA
power -48V DC
Operating Voltage -36V DC to -57V DC
CPRI Port Specifications Number of CPRI Ports 2
CPRI Data Rate (Gbit/s) 1.25/2.5/4.9/9.8
Cascading Levels GSM:6
Maximum Distance from the BBU(km) GSM:40
LTE FDD:When the LBBPc or LBBPd1 is configured: 20
When the LBBPd2 or UBBP is configured: 40
When the LBBPd3 is configured: 40 (number of cells ≤ 3); 20 (number of cells ≥ 4)
Cpri Protocal Type CPRI
Highlight Highlight1 New generation of power amplifier technology, higher efficiency, lower consumption
Highlight2 Support 5G Evolution
Highlight3 Receive sensitivity increased by 0.2dB than the previous generation
Platform WUYI
Frequency Band (MHz) 1800
TX/RX Channel 4T4R
Output Power 4x40W
LOWFrequency 1710
HIGHFrequency 1880
Calculable Engineering Specifications Weight (kg) 15
Height(mm) 400
Width(mm) 300
Depth(mm) 100
Typical Power Consumption(W) 337
Keyshot RRU5901_540