DBS3900 CDMA Hardware Structure 20080804 B 1.0

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Huawei Confidential

Security Level: Internal 23/4/10

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Wireless Case & Training Department

DBS3900 CDMA Hardware Structure

HUAWEI TECHNOLOGIES CO., LTD. Page 2Huawei Confidential

HERT platform

Naming rule of Huawei HERT BTS:

BTS type Uni-name

　 GBTS/NodeB/CBTS/Wimax BTS/LTE

Indoor macro BTS BTS3900

Distributed BTS DBS3900

Outdoor macro BTS BTS3900A

Mini BTS BTS3900C

Name of the CDMA BTS: Uni-name + CDMA Example: BTS3900 CDMA, DBS3900 CDMA, etc.


HERT platform

Type of the HERT CDMA BTS:

BTS3900 BTS3900A

Indoor/outdoor Macro BTS

19 inch; Support 36 FA

BTS3900BTS3900A

Multi-mode BTSDistributed BTS

DBS3900

RRU/RFU60W/80W Output Power of 800MHz BTS3900C

Mini Outdoor BTS

BBU


DBS3900

DBS3900 (Distributed Base Station 3900) DBS3900 is consist of BBU3900, RRU3606, ODU3601CE, accessories,

cable and antenna system. The distribute BTS have two types:

BBU3900+RRU3606 (except 450MHz)

BBU3900+ODU3601CE (450MHz)

MS

RF antennaRRU3606/ODU3601CE

GPS antenna

BBU3900

BSC

DBS3900


BBU3900

BBU: Baseband Unit.

Specifications BBU3900

Dimensions 442mm*86mm*310mm

Weight Empty with FAN and UFEU≤8kg, Full configuration≤11kg

Power Input +24V DC or -48V DC

Power

consumption

Full configuration≤250W


Function of BBU3900

BBU3900 is the baseband processing unit which is used to

interconnect with BSC. Provide external interfaces:

Abis interface: process the Abis signaling and traffic;

CPRI interface: provide the interface between BBU and RRU, process the PHY and

MAC layer protocol;

The BBU connects to BSC through the E1/T1 or FE link provided by the CMPT board.

And connects to RRU/RFU/ODU through the SFP cable provided by HCPM/HECM. Provide the CDMA1X and CDMA1X EVDO baseband modulation and

demodulation, coding and decoding function. Provide the synchronization clock information for BTS. Provide the system source management, operation and maintenance,

environment monitor function.


Physical structure of BBU3900

Structure of BBU3900

FANHCPM/HECM/USCU

HCPM/HECM/USCU

HCPM/HECM

HCPM/HECM HCPM/HECM/UTRP/UELP/UFLP

HCPM/HECM/UTRP/UELP/UFLP/USCU

CMPT/USCU

CMPT

UPEU

UPEU0

1

2

3

4

5

6

7

0

1


CMPT-specifications and functions

CMPT: CDMA Main Processing & Transmission Unit. Function: O&M function: Providing the Operation and Maintenance function for BTS. Clock function: Processing the clock signal from the GPS or line clock. Providing

the time and clock signal for the whole BTS. Interface function: Providing the physical transmission interface for the Abis

interface and the interface between the BTSs. Supporting E1/T1 interface and FE

electrical and optical interfaces. Supporting ATM and FE transmission mode.

Processing function: Providing the signal processing function for the BTS. Monitoring function: Providing a CANBUS module which is used to load the

BOOTROM and CPLD of CMPT, monitor the temperature and voltage of CMPT,

control the power (such as power on/off, reset and online status monitoring).


CMPT-interfaces and DIP switches

Interface

Connector

Descriptions

1-ETH RJ45 Commissioning port

2-FE0 RJ45 Fast Ethernet port between BSC and BTS.

3-FE1 SFP Fast Ethernet optical port, connects to the optical transceiver, between BSC and BTS.FE0 and FE1 can’t be used at the same time.

4-USB USB Reserved.

5-TEST USB Clock test port.

6-E1/T1 DB26 4 E1/T1 transmission port between BSC and BTS. E1/T1 can be used together with FE0 or FE1.

7-GPS SMA GPS port, connects to the GPS antenna.

DIP switch

Descriptions

S1 Matching the impedance of E1/T1 interfaces.

S2 Setting the PGND.


UFLP

UFLP: Universal FE/GE lightening Protection Unit. Dimensions: 230.5mm(length) * 144.4mm(width) * 20.32mm(height). Functions: UFLP provides 2 path FE/GE cable lightening protection function for BBU3900.

Note: Each BBU can be configured with 2 UFLP at most.

Interface Connector

Descriptions

1-INSIDE FE0 RJ45 Connects to CMPT.

2-INSIDE FE1

3-OUTSIDE FE0

RJ45 Connects to the outer transmission equipment. 4-OUTSIDE

FE1 Note:

When BBU3900 configured with UTRP, the UFLP cannot be

configured in BBU together. You can configure UFLP in SLPU.


HCPM

HCPM: HERT Channel Processing Module. Dimensions: 280mm(length) * 144.4mm(width) * 20.32mm(height). Power input: +12V DC. Power consumption: ≤45W. Functions: Process the CDMA 1X traffic data of forward and reverse channel.

Note: Capability: forward 285 CE, reverse 256 CE. Use one Qualcomm CSM6700 chip. Each HCPM can support 12 sector-carriers. Each BBU can be configured with 6 HCPM at most.

Interface Connector Descriptions

1-MDR26 - Reserved.

2-SFP SFP To connect the RF module (RRU/RFU) or ODUs.


HECM

HECM: HERT Enhance Channel Processing Module. Dimensions: 280mm(length) * 144.4mm(width) * 20.32mm(height). Power input: +12V DC. Power consumption: ≤48W. Functions: Process the EVDO traffic data of forward and reverse channel.

Note: Capability: reverse 192CE. Use one Qualcomm CSM6800 chip. Each HECM can support 6 sector-carriers. Each BBU can be configured with 6 HECM at most.

Interface Connector

Descriptions

1-MDR26 - Reserved.

2-SFP SFP To connect the RF module (RRU/RFU) or ODUs.


UPEU-specification and functions

UPEU: Universal Power and Environment Interface Unit. Dimensions: 292.39mm(length) * 85mm(width) * 40.14mm(height). Power input: +24V DC or -48V DC. Power output: +12V. Functions: Convert -48V/+24V DC to +12V DC.

Note: Configure 2 UPEU at most, working in 1+1 backup mode. Two types of UPEU: UPEA and UPEB. UPEA supports -48V DC->+12V DC. UPEB

supports +24V DC->+12V DC. Interface Connector

Descriptions

1-EXT_ALM1 RJ45 Provides 8 paths alarm input, connects to the external alarm equipment.

2-EXT_ALM0

3-MON1 RJ45 Provides 2 paths RJ485 monitoring function, connects to the external monitor.

4-MON0

5-PWR 3W3 DC power input


FAN

FAN: FAN Unit. Dimensions: 25.4mm(length) * 280mm(width) * 80mm Power input: 11V~14V. Power consumption ≤20W


BBU3900 cable installation

BBU3900 cable installation:

RRU/ODU

CPRI SFP cable E1/T1 lightening protection transit cable

E1/T1cableFE calbe

FE lightening protection transit cable

Alarm cable

Power supply cable

Monitoring signal cable

External alarm equipment

External power supply system

External environment monitoring equipment

Slot Board

3 HCPM/HECM

4 UELP

5 UFLP

7 CMPT


RRU3606-cables

Cables of single RRU:


RRU3606-cables

Cables of multi RRUs:


DBS3900 networking

DBS3900 networking: star networking, chain networking and

tree networking.

Note: For DBS3900s, a maximum of 2 cascading levels are supported. For RRU3606/ODU3601CE, a maximum of 3 cascading levels are supported. The maximum distance between two RRU3606s/ODU3601CEs is less than70km. The total distance of 3 level cascading is less than 90km. When the distance between BBU and RRU/ODU is less than 100m, use multimode optical fiber and optical transponder. If the distance is more than 100m, use single-mode optical fiber and optical transponder.

BBU3900

RRU3606/ODU3601CE

BSC

Thank You

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DBS3900 CDMA Hardware Structure 20080804 B 1.0