3.ran10.0 3900 series wcdma nodeb product description

Product Description

RNA10.0 3900 Series WCDMA NodeB

Issue 01

Date 2008-03-06

HUAWEI TECHNOLOGIES CO., LTD.


Product Description

Issue 01 (2008-03-06) Commercial in Confidence Total 59

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office or company headquarters.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

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Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.


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Contents

1 Overview..........................................................................................................................6 1.1 Introduction....................................................................................................................................... 6 1.2 Products and Applications................................................................................................................ 7 1.3 Benefits ............................................................................................................................................ 9

1.3.1 Fast Network Deployment and Efficient Site Utilization .......................................................... 9 1.3.2 Cost-Effective Capacity and Coverage Solution ..................................................................... 9 1.3.3 Construction of a Green Communication Network.................................................................. 9 1.3.4 Minimized Operation Cost ..................................................................................................... 10 1.3.5 Easy Evolution to the Future Radio Network ........................................................................ 10

2 System Architecture .....................................................................................................11 2.1 Introduction......................................................................................................................................11 2.2 BBU3900 .........................................................................................................................................11

2.2.1 Physical Structure of the BBU3900 ........................................................................................11 2.2.2 Logical Structure of the BBU3900 ......................................................................................... 12 2.2.3 Boards and Funtional Units of the BBU3900......................................................................... 13 2.2.4 Ports on the BBU3900........................................................................................................... 14

2.3 RRU................................................................................................................................................ 16 2.3.1 RRU Type .............................................................................................................................. 16 2.3.2 Physical Structure of the RRU............................................................................................... 16 2.3.3 Logical Structure of the RRU................................................................................................. 17 2.3.4 Ports on the RRU .................................................................................................................. 18

2.4 WRFU............................................................................................................................................. 18 2.4.1 WRFU Type ........................................................................................................................... 18 2.4.2 Physical Structure of the WRFU............................................................................................ 19 2.4.3 Logical Structure of the WRFU.............................................................................................. 19 2.4.4 Ports on the WRFU ............................................................................................................... 19

2.5 Auxiliary Devices ............................................................................................................................ 19 2.5.1 APM ....................................................................................................................................... 19 2.5.2 Indoor Macro Cabinet ............................................................................................................ 19 2.5.3 Outdoor RF Cabinet .............................................................................................................. 19 2.5.4 Outdoor Mini Cabinet............................................................................................................. 19

3 Products and Corresponding Application Scenarios ................................................19 3.1 Distributed NodeB: DBS3900......................................................................................................... 19

3.1.1 Integrated Application (BBU3900 + RRU + APM) ................................................................. 19


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3.1.2 BBU3900 in a Standard 19-Inch Cabinet .............................................................................. 19 3.1.3 BBU3900 in an Outdoor Mini Cabinet ................................................................................... 19

3.2 Indoor Cabinet Macro NodeB: BTS3900 ....................................................................................... 19 3.3 Outdoor Cabinet Macro NodeB: BTS3900A .................................................................................. 19 3.4 Compact Mini NodeB: BTS3900C.................................................................................................. 19 3.5 Dual-Mode NodeB.......................................................................................................................... 19

4 Features.........................................................................................................................19 4.1 Advanced Platform Structure.......................................................................................................... 19 4.2 High Integrity and Large Capacity.................................................................................................. 19 4.3 High Performance .......................................................................................................................... 19 4.4 ATM/IP Dual Stack.......................................................................................................................... 19

4.4.1 ATM........................................................................................................................................ 19 4.4.2 IP ........................................................................................................................................... 19

4.5 Multiple Clock and Synchronization Modes ................................................................................... 19 4.6 HSDPA Services............................................................................................................................. 19 4.7 HSUPA Services............................................................................................................................. 19 4.8 MBMS............................................................................................................................................. 19 4.9 High-Velocity UE Access................................................................................................................ 19 4.10 Antenna Enhancement Technology.............................................................................................. 19 4.11 Same Band Antenna Sharing ....................................................................................................... 19 4.12 OM Platforms ............................................................................................................................... 19 4.13 Environment Adaptability.............................................................................................................. 19 4.14 Capacity Expansion Evolution...................................................................................................... 19

5 Operation and Maintenance.........................................................................................19 5.1 Overview ........................................................................................................................................ 19 5.2 OM Functions ................................................................................................................................. 19

5.2.1 Security Management............................................................................................................ 19 5.2.2 Equipment Management ....................................................................................................... 19 5.2.3 Fault Management................................................................................................................. 19 5.2.4 Software Management .......................................................................................................... 19 5.2.5 Performance Management.................................................................................................... 19 5.2.6 Commissioning Management................................................................................................ 19 5.2.7 Environment Monitoring......................................................................................................... 19 5.2.8 License Management ............................................................................................................ 19 5.2.9 Task Management ................................................................................................................. 19

6 Reliability.......................................................................................................................19 6.1 Overview ........................................................................................................................................ 19 6.2 System Reliability ........................................................................................................................... 19 6.3 Hardware Reliability ....................................................................................................................... 19 6.4 Software Reliability......................................................................................................................... 19


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7 Technical Specifications ..............................................................................................19 7.1 Technical Specifications for the BTS3900...................................................................................... 19 7.2 Technical Specifications for the BTS3900A ................................................................................... 19 7.3 Technical Specifications for the DBS3900...................................................................................... 19 7.4 Technical Specifications for the BTS3900C ................................................................................... 19


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1 Overview

1.1 Introduction With the mobile communication technology developing on a daily basis, it is no doubt that the operators, during network construction and partner selection, will focus their attention on innovation and integration of multiple advanced technologies for constructing a cost-effective and future-oriented mobile network.

Upholding the idea of continuous innovation based on customer requirements, Huawei developed the 3900 series NodeB through integration of multiple radio resources and technologies. The 3900 series NodeBs, integrating the latest Huawei technologies in chip design, system architecture, Power Amplification (PA) and power consumption management, provide NodeB solutions for the future-oriented mobile network.

During the transition of mobile networks, the 3900 series NodeBs, characterized by integration, broadband, environment protection, evolution, will help operators construct a future-oriented mobile network with higher performance.

The 3900 series NodeBs have a cutting-edge modular design, thus compatible with functional modules of different network systems. With simply three types of units, the 3900 series NodeBs feature small size, high integration, low power consumption, easy and fast deployment.

The innovative design and flexible combinations of the functional modules and auxiliary devices lead to the diversity of NodeB products. The operators can install boards of different network systems in one cabinet to form a NodeB that applies to different scenarios. This accelerates the introduction of new radio network technologies and complies with the development trend of the mobile network towards integration of different network systems.

The 3900 series NodeBs, based on IP switch and multi-carrier technologies, support the bandwidth of 100 M. This ensures a high data transmission rate for users during mobile data service expansion.

The optimized hardware and system architecture of the 3900 series NodeBs, together with the innovative conservation technologies for the PA and power consumption management, enable the operators to construct a green communication network through new devices, temperature regulation, and green energy resource utilization.


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1.2 Products and Applications The 3900 series NodeBs basically comprise the following three units:

The indoor baseband processing unit BBU3900 The indoor radio frequency unit WRFU The outdoor Remote Radio Unit (RRU)

Flexible combinations of the three units and auxiliary devices can provide different NodeBs that apply to different scenarios such as indoor centralized installation, outdoor centralized installation, outdoor distributed installation, site sharing of multiple network systems. Figure 1-1 shows the three units and auxiliary devices and Figure 1-2 shows the different application scenarios.

Figure 1-1 Units and auxiliary devices of the 3900 series NodeBs


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Figure 1-2 Application scenarios of the 3900 series NodeBs

Different combinations of the units and auxiliary devices form the following 3900 series NodeBs:

Cabinet macro NodeB The cabinet macro NodeB, integrating the BBU3900 and the WRFU, consists of the indoor BTS3900 and the outdoor BTS3900A. The cabinet macro NodeB


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applies to centralized installation, where the BTS3900 and the BTS3900A, as mentioned above, are recommended for indoor application and outdoor application respectively.

Distributed NodeB The distributed NodeB, known as the DBS3900, consists of the BBU3900 and the RRU. For the distributed installation, the RRU is placed close to the antenna. This can reduce feeder loss and improve NodeB performance.

Compact mini NodeB The compact mini NodeB BTS3900C is applicable to both indoor and outdoor environments. It can be installed on the pole, wall, or ground. When it is installed on the ground, a stand or other kind of support is required.

1.3 Benefits The 3900 series NodeBs adopt a uniform modular design for multiple radio network systems, thus adaptive to various installation scenarios. This greatly reduces the costs in network deployment and operations, such as site acquisition, capacity and coverage expansion, and environment protection. The 3900 series NodeBs enable the construction of a future-oriented network and smooth evolution to the Long Term Evolution (LTE).

1.3.1 Fast Network Deployment and Efficient Site Utilization The 3900 series NodeBs support both centralized and distributed installations, which simplifies network deployment and facilitates cost-effective network constructions in different scenarios.

The BBU3900 can be installed in a 2-U-high and 19-inch-wide indoor space or a protective outdoor cabinet while the RRU can be installed close to the antenna and has no footprint.

The cabinet macro NodeB is one of the most compact NodeBs of the telecommunication industry, because it has a very small footprint. The footprint of the BTS3900 is 600 mm x 450 mm while that of the BTS3900A is 600 mm x 480 mm.

1.3.2 Cost-Effective Capacity and Coverage Solution The 4-carrier RRU3804 can generate 60 W power, which is the highest output power of the Wideband Code Division Multiple Access (WCDMA) RRU in the telecommunication industry. This outstanding performance ensures wider coverage, higher throughput, and smaller quantity of sites.

The RRU3804 can stay close to the antenna and communicate with the BBU3900 through optical cables, thus avoiding feeder loss. With the same power and system capacity, lower feeder loss denotes wider system coverage or smaller quantity of sites under the fixed coverage.

1.3.3 Construction of a Green Communication Network Compact and modular design, innovative PA and power consumption management are the keys to a green communication network that features energy conservation and requires less equipment rooms.


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RF units of the 3900 series NodeBs adopt the Digital Pre-Distortion (DPD) and A-Doherty technologies to raise the PA rate to 40%. Thus, the power consumption of the entire NodeB is lowered.

The RF cabinet of the BTS3900A is a direct-ventilation cabinet. In comparison to the traditional macro NodeB, equipment power consumption is lowered by 40%.

The reduced power consumption not only avoids extra electricity expense but also lessens the investment in power supply, backup batteries, air conditioner, and heat exchanger.

1.3.4 Minimized Operation Cost The baseband units, RF units, and power systems of the BTS3900 and DBS3900 fit all NodeB site types, thereby saving the logistics cost during manufacturing and transportation and the future maintenance cost.

The 3900 series NodeBs are characterized by separate baseband and RF units, compact design, and distributed installation. All these features facilitate the transportation and installation and make network constructions less complicated and less expensive. For example, special tools such as a crane are dispensable.

The RRU works in natural heat dissipation and has no fans. Its high reliability reduces the routine maintenance cost.

1.3.5 Easy Evolution to the Future Radio Network The uniform modular design of the3900 series NodeBs enables the GSM BTS and UMTS NodeB to share the same cabinet. This facilitates the evolution to the future radio network and introduction of new radio technologies.

The WCDMA RF unit supports HSPA+ and smooth evolution to the LTE. This realizes the future-oriented network investment.


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2 System Architecture

2.1 Introduction The 3900 series NodeBs feature modular design. The baseband processing unit BBU3900 and the RF unit (RRU and WRFU) that are connected through the Common Public Radio Interface (CPRI) optical cable provide solutions for the WCDMA network construction.

The 3900 series NodeBs basically comprise three units, the baseband processing unit BBU3900, the indoor RF unit WRFU, and the outdoor RRU. Auxiliary devices for the 3900 series NodeBs include the APM, indoor macro cabinet, outdoor RF cabinet, and outdoor mini cabinet. Flexible combinations of the three units and auxiliary devices can provide comprehensive NodeB site solutions that apply to different scenarios.

2.2 BBU3900 2.2.1 Physical Structure of the BBU3900

The BBU3900, with a box structure, is 19 inches in width and 2 U in height. It can be installed in an indoor 19-inch-wide and 2-U-high space or an outdoor protective cabinet. Figure 2-1 shows the physical structure of the BBU3900.

Figure 2-1 Physical structure of the BBU3900


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The 2-U-high space of the BBU3900 integrates the functions such as main control, baseband processing, and transmission. The BBU3900 supports multiple configurations, ranging from 1x1 to 6x4 and the configuration of 3x8.

2.2.2 Logical Structure of the BBU3900 The BBU3900 has a modular design. According to the function of each module, it can be divided into the following subsystems:

Transport subsystem Baseband subsystem Control subsystem Power monitoring module

Figure 2-2 shows the logical structure of the BBU3900.

Figure 2-2 Logical structure of the BBU3900

Transport Subsystem The transport subsystem provides ports to exchange information between the BBU and the Radio Network Controller (RNC).

In addition, the transport subsystem provides maintenance channels between the BBU and the Operation and Maintenance Centre (OMC), that is, the Local Maintenance Terminal (LMT) or M2000 for BBU Operation and Maintenance (OM).

Baseband Subsystem The baseband subsystem processes both Uplink (UL) and Downlink (DL) baseband signals. The functions of the subsystem are performed by the following modules:

UL baseband signal processing module − The UL baseband signal processing module consists of the demodulation unit

and the decoding unit. In this module, uplink baseband signals are processed


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into despreading soft decision symbols after access channel searching, access channel demodulation, and dedicated channel demodulation. The signals are then sent to the RNC through the transport subsystem after decoding and FP processing.

DL baseband signal processing module − The DL baseband signal processing module consists of the modulation unit

and the coding unit. Before sending signals received from the transport subsystem to the optical module, the module sends service data received from the transport subsystem to the Frame Protocol (FP) processor. After FP processing, the module processes the signals through transmission channel mapping, physical channel generating, framing, spreading, demodulating, transmit diversity control, and power control combination. The module finally sends the processed signals to the interface module.

The CPRI module is integrated in the baseband subsystem of the BBU3900.

Control Subsystem The control subsystem manages the entire distributed NodeB. The subsystem performs OM, processes signaling, and provides system clocks.

The OM module performs functions such as equipment management, configuration management, alarm management, software management, and commissioning management.

The signaling processor performs functions such as the NodeB Application Part (NBAP) signaling processing, the Access Link Control Application Part (ALCAP) processing, the Stream Control Transmission Protocol (SCTP) processing, and the logical resource management.

The clock sources of the NodeB consist of the phase-locked line clock extracted from the Iub interface, the Global Positioning System (GPS) clock, and the external clock such as the Building Integrated Timing Supply (BITS) clock. The BBU extracts the clock from the Iub interface and provides the clock for the entire NodeB after frequency dividing, phase locking, and phase adjusting in the clock module.

Power Monitoring Module The power monitoring module converts the –48 V DC power to suitable power for the boards. In addition, it provides the monitoring signal input port.

2.2.3 Boards and Funtional Units of the BBU3900 The BBU3900 consists of different functional units and boards such as the WCDMA Main Processing & Transmission (WMPT) unit, the Universal Environment Interface Card (UEIC), the Universal Fan module (UFAN), the Universal Power and Environment interface Unit (UPEU), as shown in Figure 2-3. The boards support plug-and-play functions and can be configured as required.

Optional boards of the BBU3900 consist of the Universal E1/T1 Lightning Protection (UELP) unit, the Universal FE Lightning Protection (UFLP) unit, the Universal Satellite card and Clock Unit (USCU), the Universal TRansmission Processing (UTRP) unit, and the Universal Environment Interface Unit (UEIU).


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Figure 2-3 Boards of the BBU3900

WMPT The WMPT is mandatory for the BBU3900 and one BBU3900 holds up to two WMPTs for redundancy. The WMPT functions as follows: − Processes clock signals and provides reference clock for the NodeB − Provides OM management for the NodeB − Provides 4 E1/T1 ports, one electric Fast Ethernet (FE) port, and one optical

FE port to support the Asynchronous Transfer Mode (ATM) and Internet Protocol (IP).

− Provides one USB port to download and activate the host software − Processes signaling and manages resources

WBBP The WBBP is mandatory for the BBU3900 and one BBU3900 holds up to six WBBPs. According to processing capability, the WBBP can be categorized into five types and functions as follows: − Processes signals on the CPRI interface between the BBU and the RRU − Processes baseband signals in the UL and DL − Supports High Speed Downlink Packet Access (HSDPA) and High Speed

Uplink Packet Access (HSUPA) − Supports CPRI ports in 1+1 redundancy

UFAN The UFAN is used to control the fan speed and monitors the working temperature for the fan.

UPEU The UPEU is the power supply unit and one BBU3900 can be configured with up to two UPEUs that work in 1+1 backup mode. The UPEU functions as follows: − Converts the –48 V DC power into the power required by the boards − Provides two RS485 monitoring ports − Provides 8 dry contact alarm ports

2.2.4 Ports on the BBU3900

Table 2-1 Ports on BBU3900 boards

Board Port Quantity Connector Remarks

WMPT E1/T1 port 1 DB26 One port has four E1 inputs.


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FE electrical port 1 RJ45 -

FE optical port 1 SFP -

USB loading port 1 USB Software loading

USB test port 1 USB Test port

Serial port for commissioning

1 RJ45 Local maintenance for the NodeB

GPS port 1 SMA -

WBBP CPRI 3 SFP -

PWR 1 3W3

–48 V DC power input and +24 V DC power input

MON0 1 RJ45

MON1 1 RJ45

Provides two RS485 monitoring signal inputs and connects to the external alarm device

EXT-ALM0 1 RJ45

EXT-ALM1 1 RJ45

UPEU

EXT-ALM2 1 RJ45

Provides eight dry contact alarm inputs and connects to the external alarm device

Table 2-2 Physical ports on optional boards of the BBU3900


INSIDE 1 DB25 Four E1/T1 signal input ports UELP

OUTSIDE 1 DB25 Four E1/T1 signal output ports

FE0 and FE1 (INSIDE)

2 RJ45 Connects to the NodeB UFLP

FE0 and FE1 (OUTSIDE)

2 RJ45 Connects to the external devices. The FE0 (OUTSIDE) connects to FE0 (INSIDE) and the FE1 (OUTSIDE) connects to the FE1 (INSIDE).

RGPS port 3 DB8 Connects to the RGPS signal cable

USCU

BITS port 1 SMA Connects to the BITS clock


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Clock test port 1 SMA Port for testing clock signal output

Antenna port for the satellite card

1 SMA RF signal input terminal of the satellite card

UTRP E1/T1 port 2 DB26 Provides eight ports that support ATM over E1 or IP over E1

MON 1 RJ45

MON1 1 RJ45

Connects to the external monitoring device

EXT-ALM0 1 RJ45

EXT-ALM1 1 RJ45

Connects to the external alarm device

UEIU

Specifications: The UEIU is a monitoring and dry contact extension board for the UPEU.

2.3 RRU 2.3.1 RRU Type

According to different processing capabilities, the RRU is of two types: the RRU3804 and the RRU3801E.The RRU3804 and the RRU3801E have the same physical structure, size, weight, ports, and logical structure, but differ in specifications.

Table 2-3 RRU type

RRU Type RRU3804 RRU3801E

Maximum output power 60 W 40 W

Number of carriers supported Four Two

2.3.2 Physical Structure of the RRU The RRU can be installed outdoors close to the antenna. Figure 2-4 shows the physical structure of the RRU.


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Figure 2-4 Physical structure of the RRU

2.3.3 Logical Structure of the RRU The RRU supports 4-way receive diversity through connection with the SRXU. The SRXU receives RF signals from the antenna system, down-converts the receive signals to Intermediate Frequency (IF) signals after amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and Digital Automatic Gain Control (DAGC). Figure 2-5 shows the logical structure of the RRU.

Figure 2-5 Logical structure of the RRU

Interface module The interface module receives downlink baseband data from the BBU, transmits uplink baseband data to the BBU, and forwards data from the cascaded RRUs.

TRX The TRX has two RX channels and one TX channel for RF signals. The RX channel down-converts the receive signals into Intermediate Frequency (IF) signals and performs amplification, analog-to-digital (A/D) conversion, digital down-conversion, matched filtering, and DAGC.


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The TX channel performs shape filtering of downlink spreading signals, digital-to-analog (D/A) conversion, and up-conversion of RF signals into transmit band signals.

PA The PA implements the DPD and A-Doherty technologies to amplify low-power RF signals from the TRX.

Duplexer The duplexer multiplexes receive signals and transmit signals, which enables the receive signals and transmit signals to share the same antenna path. The duplexer also filters receive signals and transmit signals.

LNA The LNA amplifies the signals received from antennas.

2.3.4 Ports on the RRU The RRU has a modular structure. The external ports of the RRU are located at the bottom of the module and in the cabling cavity. Ports on the RRU include grounding ports, power supply ports, transmission ports, alarm ports, and other ports.

Table 2-4 Ports on the RRU

Port Connector Quantity Remarks

–48 V DC power supply port

OT terminal 1 Power port

Optical port ESFP socket 2 Optical port

Two dry contact alarm ports and one RS485 port

DB15 1 Alarm port

Main TX/RX port DIN, round, and waterproof 1

RX diversity port DIN, round, and waterproof 1

Port for interconnection 2W2 1

RF port

2.4 WRFU

2.4.1 WRFU Type According to different processing capabilities, the WCDMA Radio Filter Unit (WRFU) is of two types, the 40 W WRFU and the 80 W WRFU. The two types of WRFU have the same physical structure, size, weight, ports, and logical structure, but differ in specifications.


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Table 2-5 Specifications of the WRFU

WRFU Type 80 W WRFU 40 W WRFU

Maximum output power 80 W 40 W

Number of carriers supported Four Two

2.4.2 Physical Structure of the WRFU The 80 W WRFU supports four carriers and applies to the indoor cabinet or outdoor protective cabinet. Figure 2-6 shows the physical structure of the WRFU.

Figure 2-6 Physical structure of the WRFU

2.4.3 Logical Structure of the WRFU

Figure 2-7 Logical structure of the WRFU


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Interface module The interface module receives downlink baseband data from the BBU, transmits uplink baseband data to the BBU, and forwards data from the cascaded RRUs.

TRX The TRX has two RX channels and one TX channel for RF signals. The RX channel down-converts the received signals into Intermediate Frequency (IF) signals and performs amplification, analog-to-digital (A/D) conversion, digital down-conversion, matched filtering, and Digital Automatic Gain Control (DAGC). The TX channel performs shape filtering of downlink spreading signals, digital-to-analog (D/A) conversion, and up-conversion of RF signals into transmit band.

PA The PA implements the DPD and A-Doherty technologies to amplify low-power RF signals from the TRX.

Duplexer The duplexer multiplexes receive signals and transmit signals, which enables the receive signals and transmit signals to share the same antenna path. The duplexer also filters receive signals and transmit signals.

LNA The LNA amplifies the signals received from antennas.

2.4.4 Ports on the WRFU

Table 2-6 Ports on the WRFU

Port Connector Quantity Remarks

–48 V power supply port 3V3 1 Power port

Optical port ESFP socket 2 Optical port

Main TX/RX port DIN, round, and waterproof 1

RX diversity port DIN, round, and waterproof 1

RF port

2.5 Auxiliary Devices 2.5.1 APM

The Advanced Power Module (APM) provides –48 V DC power and backup batteries for the distributed NodeBs, outdoor macro NodeBs, and mini NodeBs. In addition, it provides space for installation of the BBU3900 and user equipment to realize fast network deployment. The APM is of two types, APM30 and APM100.

The APM consists of the Power Supply Unit (PSU), Power Monitoring Unit (PMU), Power Distribution Unit (PDU), Surge Protection Unit (SPU), temperature control unit,


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and batteries. The APM cabinet provides space for installation of the user equipment and performs the following functions:

DC power supply Battery management Monitoring and communication of the power supply system Power distribution Lightning protection Temperature control Backup power Transmission equipment installation

The APM30 features compact design and light weight. It can be installed on a pole or on the ground. The 12 Ah, 24 Ah, or 36 Ah batteries can be configured in the APM30. The APM100 can be installed on the ground. The 50 Ah or 100 Ah batteries can be configured in the APM100.

Figure 2-8 and Figure 2-9 show the internal structures of the APM30 and APM100 respectively.

Figure 2-8 Internal structure of the APM30


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Figure 2-9 Internal structure of the APM100

Table 2-7 Technical specifications of the APM

Item APM30 Specification APM100 Specification

Dimensions (Width x Height x Depth) (the base excluded)

600 mm × 700 mm × 480 mm

600 mm x 1130 mm x 600 mm

Weight (batteries and user transmission equipment excluded)

< 65 kg ≤ 88 kg

Engineering specifications

Working temperature

–40°C to 45°C (with1120 W/m2 solar radiation) –40°C to 50°C (without solar radiation) The AC heat exchanger is required in the environment of –20°C.

North model: –40°C to 45°C South model: –5°C to 45°C


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Item APM30 Specification APM100 Specification

Input voltage

176 V AC to 290 V AC (rated output power of the PSU)

90 V AC to 175 V AC (derated output power of the PSU)

220 V AC to 240 V AC (single-phase) 110 V AC dual-live-wire

AC input

Frequency of input voltage

45 Hz to 65 Hz

Output voltage

–58 V DC to –44 V DC DC output

DC outputs 10 A x 5: 5 50 A x 1: 1 5 A x 2: 2

16 A x 4: 4 32 A x 2: 2

–48 V 12 Ah or –48 V 24 Ah built-in batteries

5 U -

–48 V 36 Ah built-in batteries

2 U -

No built-in batteries

7 U -

Space for user equipment

48 V 100 Ah built-in batteries

- 4 U

2.5.2 Indoor Macro Cabinet The indoor macro cabinet features small footprint, compact design, and stack installation, thus catering to indoor centralized installation and fast network construction. It performs power distribution and surge protection functions for the BBU3900 and WRFUs. An indoor macro cabinet accommodates up to six WRFUs. The BTS3900 enables GSM, UMTS, and LTE modules to share one indoor macro cabinet, which saves installation space and facilitates smooth evolution.

The indoor macro cabinet supports –48 V DC power. If configured with suitable power modules, it can also support 24 V DC or 220 V AC power.

Figure 2-10 and Figure 2-11 show the single indoor cabinet and the two stacked indoor cabinets respectively.


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Figure 2-10 Single indoor cabinet


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Figure 2-11 Two stacked indoor cabinets

2.5.3 Outdoor RF Cabinet The outdoor RF cabinet, with the APM30 cabinet stacked on it, serves the power distribution, surge protection, and other protection for the WRFU and the BBU3900.The outdoor RF cabinet works in direct ventilation to dissipate heat. It can hold three WRFUs together with batteries, as shown in Figure 2-12. It can also hold up to six WRFUs, as shown in Figure 2-13.

The BTS3900A enables GSM, WCDMA, and LTE modules to share one outdoor RF cabinet, which saves space and facilitates smooth evolution.


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Figure 2-12 Outdoor RF cabinet with three WRFUs and the batteries

Figure 2-13 Outdoor RF cabinet with six WRFUs

2.5.4 Outdoor Mini Cabinet The outdoor mini cabinet provides functions such as power distribution and surge protection for the BBU3900.The BBU3900 can be placed in an outdoor mini cabinet to form an outdoor BBU. This fulfills the outdoor application scenario of the compact mini NodeB.

The outdoor mini cabinet is configured with a built-in heat exchanger. If the AC power is used, the mini cabinet must be configured with an EPS30-4815A and an SPD (AC). If the DC power is used, the mini cabinet must be configured with a DC power distribution box, as shown in Figure 2-14.


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Figure 2-14 Internal structure of the outdoor mini cabinet


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3 Products and Corresponding Application Scenarios

3.1 Distributed NodeB: DBS3900 With the continuous network capacity expansion, site selection has become a bottleneck during network construction. Solutions to this problem, such as the 2G/3G co-siting or site reselection, become increasingly difficult to implement and require more cost.

The DBS3900 typifies the compact design, easy installation, and low power consumption. In addition, it can reside in the spare space of an existing 2G site. The RRU also has a compact design and light weight. It can be installed close to the antenna to decrease cable loss and improve system coverage. All the previously mentioned features of the distributed NodeB facilitate the site selection, network planning and optimization. This enables the operators to efficiently deploy a high-performance network with a low Total Cost of Ownership (TCO) because less manpower, electric power, and space are required during network construction.

The distributed NodeB has multiple configurations to meet the requirement of quick network construction in different scenarios.

3.1.1 Integrated Application (BBU3900 + RRU + APM) If only the AC power is available at a newly built 3G site and power backup is required, the configuration of BBU3900 + RRU + APM can be applied to perform the function of the outdoor macro NodeB. Figure 3-1 shows the typical configuration of BBU3900 + RRU + APM. This configuration has the following features:

The BBU3900 can be placed in the APM and the RRU can be installed on the metal pole and close to the antenna.

Extra space is reserved in the APM for the BBU3900 installation. In addition, the APM provides functions such as battery power backup, AC/DC conversion, power distribution, and surge protection.

The APM30 can be configured with 12 Ah, 24 Ah, or 36 Ah built-in batteries and the APM100 can be configured with 50 Ah or 100 Ah built-in batteries. Whether the APM30 or the APM100 should be used depends on the required power backup period.


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Figure 3-1 Typical configuration of BBU3900 + RRU + APM

3.1.2 BBU3900 in a Standard 19-Inch Cabinet For the scenario of 2G/3G co-siting, the BBU3900 can reside in any standard 19-inch-wide and 2-U-high cabinet and the RRU can be installed on the metal pole and close to the antenna, as shown in Figure 3-2. In addition, the BBU3900 and RRU can share the power supply and antenna systems of the 2G network, which enables operators to launch 3G services on the existent 2G network at a very low cost.

Figure 3-2 BBU3900 in a standard 19-inch cabinet


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3.1.3 BBU3900 in an Outdoor Mini Cabinet In the scenario of 2G/3G co-siting, if no indoor space is available for the BBU3900, it can reside in the spare space of an outdoor cabinet to form an outdoor BBU. The RRU can be installed on the metal pole close to the antenna for quick deployment, as shown in Figure 3-3.

Figure 3-3 BBU3900 in an outdoor mini cabinet

3.2 Indoor Cabinet Macro NodeB: BTS3900 The BTS3900 is applicable to the indoor scenarios such as centralized installation and relocation of the macro NodeB, as shown in Figure 3-4.

The BTS3900, as one of the most compact indoor macro NodeBs in the telecommunication industry, boasts large and expandable capacity. It is light, and supportive of the GSM-WCDMA dual-mode application.


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Figure 3-4 Indoor cabinet macro NodeB

3.3 Outdoor Cabinet Macro NodeB: BTS3900A The BTS3900A consists of two stackable cabinets, namely, the APM30 cabinet and the outdoor RF cabinet. The BBU3900 is placed in the APM30 cabinet. Thus, the BTS3900A is applicable to the outdoor scenarios such as centralized installation or relocation of the outdoor macro NodeB with its different configurations, as shown in Figure 3-5 and Figure 3-6.

The BTS3900A, one of the most compact outdoor cabinet macro NodeBs in the telecom industry, boasts light weight and easy transportation due to its stackable design.


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Figure 3-5 Outdoor cabinet macro NodeB (with three WRFUs)


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Figure 3-6 Outdoor cabinet macro NodeB (with six WRFUs)

3.4 Compact Mini NodeB: BTS3900C The BTS3900C applies to the new outdoor 3G sites where no equipment room exists, hot spots, marginal networks, and blind spots such as tunnels.

The BTS3900C supports the 220 V AC power and the –48 V DC power. If the 220 V AC power is used, the mini cabinet must be configured with an EPS30-4815A and an SPD (AC). If the –48 V DC power is used, the mini cabinet must be configured with a DC power distribution box.

The BTS3900C can be installed on the pole, on the wall, or on the ground. When it is installed on the ground, a stand or a support must be used.


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Figure 3-7 Compact mini NodeB with DC power

Figure 3-8 Compact mini NodeB with AC power


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3.5 Dual-Mode NodeB The 3900 series NodeBs share one platform and have modular design. The GSM BTS, WCDMA and LTE NodeBs, with similar baseband and RF units, are assembled in one cabinet. Even mixed insertion is supported. This realizes the smooth evolution from GSM to WCDMA.

Baseband processing boards of different network systems can be installed in the same BBU3900 cabinet. That is, the GSM-only, WCDMA-only, and GSM-UMTS dual modes can be supported through different board configurations. In the future, the BBU3900 also supports the multi-mode of GSM, UMTS, and LTE through addition of LTE baseband processing boards.

RF units of the GSM and WCDMA systems can be installed in the same RRU cabinet. That is, the GSM-only, WCDMA-only, or GSM-UMTS dual modes can be supported through different module configurations.

The RF unit of the UMTS is LTE ready in hardware. The dual-mode of UMTS and LTE can be realized by upgrading NodeB software in the same frequency band.

Figure 3-9 and Figure 3-10 show the indoor and outdoor application of the multi-mode NodeB respectively.

Figure 3-9 Indoor application of the multi-mode NodeB

Figure 3-10 Outdoor application of the multi-mode NodeB


Product Description


4 Features

4.1 Advanced Platform Structure The advanced platform structure of the 3900 series NodeBs is described as follows:

The 3900 series NodeBs that adopt the Huawei platform based on IP switch, support the GSM-WCDMA dual-mode cabinet, HSPA+, and smooth evolution to LTE.

The 3900 series NodeBs introduce the module-sharing concept, that is, the distributed NodeB, cabinet macro NodeB, and compact mini NodeB share all baseband and RF modules. The three module types form different NodeB products and apply to different scenarios. This concept protects investment in equipment and maintenance.

The dual-star GE IP switch technology enables exchange of large amount of internal data and satisfies more data traffic needs for HSPA+ and LTE in the future.

The hot-swappable BBU3900 provides eight slots and supports smooth capacity expansion and evolution.

The combination of duplexer and TRU in the RF module enhances the integrity of RF parts and meets the future requirements of the minimized, high-efficiency, and low-cost NodeBs.

A minimized NodeB cabinet is easy to carry and install, and the stacked NodeB cabinets take up a small footprint.

4.2 High Integrity and Large Capacity The 3900 series NodeBs are highly integrated and large in capacity:

The BBU3900 contains highly integrated chips and features large capacity. A single BBU3900 supports 24 cells, with 1,536 UL CEs and 1,536 DL CEs. It also supports HSDPA and HSUPA services.

A single RRU3804 or WRFU supports the 4-carrier configuration. When the NodeB evolves from 1x1 to 1x4 or from 3x1 to 3x4, no extra RRU or WRFU is required.


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4.3 High Performance The high performance of the 3900 series NodeBs are described as follows:

The 3900 series NodeBs feature high receiver sensitivity. The 2-way receiver sensitivity is higher than –129.3 dBm without the Tower Amplification (TMA).

The WRFU supports 80 W output power and the RRU3804 supports 60 W output power, which means that the PAs of the 3900 series NodeBs increase by 40%.

The 3900 series NodeBs support open-loop TX diversity and closed-loop TX diversity to enhance downlink coverage and capacity.

A single RRU3804 (with an SRXU) supports 4-way RX diversity to enhance uplink demodulation.

4.4 ATM/IP Dual Stack 4.4.1 ATM

In ATM transmission, the 3900 series NodeBs support the following modes:

User-Network Interface (UNI) mode when transmission resources are inadequate and traffic is low.

Inverse Multiplexing on ATM (IMA) mode when there are rich transmission resources. This mode features high reliability, high-speed transmission, and low latency.

Fractional ATM

4.4.2 IP The IP transmission, based on IPs, supports the transmission of various data services on low-rate links. In this mode, the IP transmission resources are fully utilized and operators' investment is greatly reduced.

In IP transmission, the 3900 series NodeBs support the following technologies:

Native IP transmission that requires no additional hardware. Compared with the PWE3 technology, Native IP is more efficient, cost-effective, and independent of PWE3 external devices

IP over E1, to fully utilize the E1 resources of the existing network and to offer a complete solution of IP transmission

Fractional Point-to-Point Protocol (PPP) ATM and IP dual stack, to protect operators' early investment in ATM

transmission Compression multiplexing technology, namely the multiplexing of PPP header

compression, PPPMUX, and IPHC, to raise the transmission rate over E1 ports. With the technology of IPHC + PPP compression + PPPMUX, the E1 transmission rate of the 12.2 kbit/s voice service rises by up to 37%

FP Multiplex (MUX), to reduce the number of Medium Access Control (MAC) headers by multiplexing packets and to raise the transmission rate over FE ports. With this technology, the FE transmission rate of the 12.2 kbit/s voice service rises by up to 40%


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Hybrid transmission, which enables services to meet different QoS requirements and then to allocate different transmission paths. For example, hybrid transmission enables real-time services to travel on electrical ports, such as E1/T1 ports, and non-real-time services to travel on Ethernet ports

4.5 Multiple Clock and Synchronization Modes The 3900 series NodeBs support multiple clock and synchronization modes to fulfill different clock networking requirements:

The upper-level clock extracts clock from the Iub interface and is set by default. The 3900 series NodeBs adopt the GPS to achieve clock synchronization. The external clock synchronization refers to the Building Integrated Timing

Supply System (BITS) clock and the 2 MHz clock on the transmission equipment. Without additional hardware, software upgrade supports the IP clock. The IP

transmission provides a high-performance and low-cost clock solution. The internal clock, an internal stratum-3 clock, ensures that the NodeB without

external clock still works properly for at least 90 days.

4.6 HSDPA Services The 3900 series NodeBs support HSDPA services in the following aspects:

One carrier supports both HSDPA and R99/R4 services. The peak downlink rate of a single UE is up to 14.4 Mbit/s. A single cell supports up to 15 HS-PDSCH codes and dynamic code resource

allocation. The 3900 series NodeBs support all 12 UE categories and rates. A single cell supports 64 HSDPA subscribers. The 3900 series NodeBs support dynamic power allocation. The 3900 series NodeBs support QPSK and 16QAM to enhance spectrum

utilization.

4.7 HSUPA Services The 3900 series NodeBs support HSUPA services in the following aspects:

One carrier supports both HSUPA and R99/R4 services. The 3900 series NodeBs support E-DCH TTI of 10 ms and 2 ms. The peak uplink data rate of an HSUPA subscriber is up to 5.76 Mbit/s. A single cell supports 60 HSUPA subscribers. The 3900 series NodeBs support 2 ms Received Total Wideband Power (RTWP)

fast measurement to enhance the reliability of uplink load.


Product Description


4.8 MBMS The 3900 series NodeBs support the Multimedia Broadcast and Multicast Service (MBMS) in the following aspects:

The 3900 series NodeBs support the setup, reallocation, and deletion of the MBMS notification Indicator Channel (MICH), and handles related signaling configuration.

Each cell supports 16 Secondary Common Control Physical Channels (SCCPCHs).

Each SCCPCH supports 4 Forward Access CHannels (FACHs). Each cell supports 63 MBMS channels.

4.9 High-Velocity UE Access The 3900 series NodeBs support a moving speed of up to 400 km/h. With this feature, UEs on high-speed vehicles, such as express railways and maglev trains, can still communicate properly.

4.10 Antenna Enhancement Technology The antenna enhancement technology enables the 3900 series NodeBs to perform the following functions:

Supporting the RET antenna to optimize network coverage, reduce interference, and enlarge system capacity

Supporting remote batch OM, batch software upgrade, and batch RET tilt adjustment

Supporting automatic scanning of the RET antenna. Supporting the Antenna Interface Standard Group (AISG) 1.1 and AISG 2.0

standard interfaces Supporting the cascading of RET antennas and controls the tilt of the 2G RET

antenna through the 3G site.

4.11 Same Band Antenna Sharing To implement the same band antenna sharing with low insertion loss, the Same-band Antenna Sharing Unit (SASU) and Same-band Antenna Sharing Adapter (SASA) are introduced to reduce costs of network deployment.

The SASU applies to two scenarios, namely the antenna shared by 2G and 3G systems and the antenna shared by two 3G systems. The SASU that enables two different systems at the same band to share one antenna system is an important part of the same band antenna sharing solution. It can greatly reduce the cost and time of the 3G network construction.

The SASU supports 900 MHz and 2100 MHz frequency bands.


Product Description


The SASA is also an important part of the same band antenna sharing solution. It will cause an insertion loss of 0.8 dB in the downlink, but it can integrate transmit carriers from two antennas into one antenna, without affecting GSM network performance.

4.12 OM Platforms The 3900 series NodeBs support two OM platforms, namely the LMT and the M2000, with which the 3900 series NodeBs perform the following OM functions:

Supporting local maintenance, remote maintenance, and reverse maintenance Supporting Bootstrap Protocol (BOOTP) and Dynamic Host Configuration

Protocol (DHCP) when data is not configured or the NodeB is faulty, the NodeB automatically sets up an OM channel to enhance system reliability and to perform remote troubleshooting

Supporting configuration baseline and simplifies the configuration rollback process to roll back configuration more reliably

Providing the intelligent out-of-service function. Before the NodeB is out of service, the UE is handed over to another 2G or 3G cell when the NodeB gradually reduces the cell pilot power. Such a handover prevents service interruption

Providing the topology scanning of RRU networking and automatically monitors the topology to free manual operations

Providing the complete system self-testing function to support local software commissioning

4.13 Environment Adaptability The 3900 series NodeBs provide a comprehensive solution applicable to different environments.

The 3900 series NodeBs fulfill the following outdoor environmental conditions: − Waterproof and dustproof design of the RRU complies with the International

Protection (IP) 65 standard. The RRU provides class-1 protection against damp, mould, and salt mist. The rack for RRUs can prevent them from exposure to solar radiation and adverse environments. The RRU works normally in the solar radiation of 1,120 W/m2 with the temperature ranging from –40°C to +50°C.

− The waterproof and dustproof design of the BTS3900A complies with the IP55 standard. The BTS3900A provides class-1 protection against damp, mould, and salt mist. The BTS3900A cabinet can resist solar radiation and adverse environments. The BTS3900A works normally in the solar radiation of 1,120 W/m2 with the temperature ranging from –40°C to +50°C.

− The BTS3900C complies with the IP55 standard in terms of protection against water and dust, and class-1 standards regarding protection against damp, mould, and salt mist. The BTS3900C works normally in the temperature ranging from –40°C to +45°C with the solar radiation of 1,120 W/m2 and the temperature ranging from -40°C to +50°C without solar radiation.

The 3900 series NodeBs fulfill the indoor environmental conditions when they comply with the IP20 standard. The BBU3900 works normally within the


Product Description


temperature ranging from –20°C to +55°C and the BTS3900 works normally within the temperature ranging from –20°C to +50°C.

The 3900 series NodeBs also provide a comprehensive auxiliary product solution regarding the following aspects: − Power distribution − Surge protection − Transmission cables − Transmission equipment installation − Power backup

4.14 Capacity Expansion Evolution Based on the Huawei IP switch platform, the 3900 series NodeBs support the GSM-WCDMA dual-mode cabinet. In addition, the 3900 series NodeBs are HSPA+ ready in hardware. This facilitates smooth evolution the LTE.

The BBU supports HSPA+ Phase 1 (downlink 64QAM and MIMO 2x2). The BBU supports HSPA+ Phase 2 (uplink 16QAM) by adding baseband

processing boards. The BBU supports LTE by adding baseband processing boards. The RRU and WRFU have ready hardware for the HSPA+ and LTE.


Product Description


5 Operation and Maintenance

5.1 Overview Based on the Man Machine Language (MML) and Graphic User Interface (GUI), the 3900 series NodeBs provide a universal OM mechanism irrelevant to hardware and take into consideration customers' requirements for equipment operation and maintenance. In one word, they offer highly customized and powerful OM functions. Figure 5-1 shows the OM systems of the 3900 series NodeBs.

Figure 5-1 OM systems of the 3900 series NodeBs

M2000: Huawei Mobile Element Management System LMT: Local Maintenance Terminal NodeB: UMTS Base Transceiver Station RNC: Radio Network Controller

The LMT and M2000 are two OM systems that implement comprehensive maintenance for the 3900 series NodeBs.

LMT One LMT is used to maintain one NodeB. The LMT supports the local maintenance by directly connecting to the NodeB or the remote maintenance by connecting to the NodeB through maintenance channels. The LMT performs the following functions: − Data configuration


Product Description


− Status monitoring (through emulation panel) − Alarm monitoring − Software upgrade − Testing and commissioning The LMT also maintains the NodeB through MML and GUI.

M2000 The M2000 is the network management center of the WCDMA Radio Access Network (WRAN), which remotely maintains the NodeB in batches. The M2000 performs the following functions: − Data configuration (CME-based) − Alarm monitoring − Performance monitoring − Software upgrade The M2000 also maintains the NodeB through MML and GUI. It can support different types of NodeB and different versions of software at the same time.

5.2 OM Functions The 3900 series NodeBs provide a universal OM mechanism independent of hardware. The mechanism includes security management, equipment management, fault management, software management, and performance management.

5.2.1 Security Management Security management is to manage the connection between NodeB software and Operation and Maintenance Center (OMC) (that is, the LMT or M2000 in the WRAN), user authentication, encryption, and forward resolution of interface messages.

5.2.2 Equipment Management Equipment management provides data configuration and status management of all internal equipment (boards and modules) and external equipment (power supply, EMI, and RET) of the NodeB.

5.2.3 Fault Management Fault management accomplishes functions such as fault detection, alarm reporting, alarm-related troubleshooting, fault isolation and self-healing.

5.2.4 Software Management Software management provides software downloading and activation, patch upgrade, file uploading and downloading functions in addition to consistency check of software and hardware versions, version management, and software version upgrade.

Software management is also a means to upgrade software locally through the USB port on the BBU3900 panel instead of through a PC.


Product Description


5.2.5 Performance Management Performance management includes subscription of NodeB performance items, periodical control of performance statistics, measurement, sampling, storage, and reporting of performance items.

5.2.6 Commissioning Management The 3900 series NodeBs perform commissioning functions in two ways, namely universal testability frame and specific testing/commissioning.

The universal testability frame provides a universal testing mechanism to facilitate the future extended testing. It also provides a common test template regarding immediate test, periodical task test, and performance item test, which facilitates the template-based extended testing in the future.

The NodeB provides a variety of testing and commissioning functions for easy maintenance and fault diagnosis. The specific testing/commissioning has the following functions: − E1/T1 online BER test, RTWP test, and CPU usage test − NodeB logs and one-push uploading of NodeB logs − Interface tracing of Iub and internal interface − Local serial port commissioning and serial port relocation

5.2.7 Environment Monitoring The 3900 series NodeBs are attendance-free and widely applicable, which requires a sound environment monitoring system to ensure the normal running of the NodeB equipment and to handle all possible emergencies.

The environment monitoring system provides customized solutions regarding door control, infrared, smoke, water immersion, humidity, and temperature. Users can also define external alarms.

5.2.8 License Management The M2000 is responsible for applying for and activating WRAN licenses. It delivers license control items to a NodeB and through these items controls the current services and capacity of the NodeB. The function control items include HSDPA, OTSR, HSUPA, and MBMS, while the resource control items include the number of CEs, number of sectors and carriers, and power control.

The 3900 series NodeBs also provide interfaces for querying license control items, clearing license, and setting license function switches.

5.2.9 Task Management The 3900 series NodeBs provide maintenance for the BBU, RRU, RET, and EMI.

The 3900 series NodeBs comply with the Antenna Line Device (ALD) protocol of AISG2.0 and 3GPP, and downwards compatible with the AISG1.1 protocol.

The 3900 series NodeBs provide the RET antenna equipment with all OM functions, including auto scanning, data configuration (setting of the antenna tilt and TMA gain), status query, and fault reporting.


Product Description


The 3900 series NodeBs support self-detection of complete hardware installation and adopts the software package stored in the USB disk of the NodeB to perform local upgrade, thus saving time for upgrade. In addition, it requires no local software commissioning.


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6 Reliability

6.1 Overview The 3900 series NodeBs introduce a fresh new NodeB system structure and provides a complete redundancy design. It also takes advantage of Huawei large-capacity ASIC chips to enhance the integrity of modules, reduce the number of parts, and greatly improve the reliability of the system.

6.2 System Reliability The system reliability of the 3900 series NodeBs is embodied in the load-sharing and redundancy configuration design, which optimizes the fault detection/isolation technology of boards and systems and greatly improves the reliability of the system.

Redundancy Design The main control board, transmission board, power supply unit, and fan in the NodeB all support redundancy. The BBU supports load sharing.

The CPRI port that connects the BBU and the RRU supports ring networking. When one CPRI link is faulty, the NodeB can automatically switch to another CPRI link.

The key data such as software version and data configuration files in the NodeB supports redundancy.

Reliability Design The NodeB can automatically self-detect and diagnose hardware failure and environment problems, and then report alarms. It also attempts to conduct self-healing to clear faults. If the self-healing fails, it can automatically isolate the faults.


Product Description


6.3 Hardware Reliability Anti-Misinsertion Function of Boards

When a board is wrongly inserted into the slot of another board, the mistaken board cannot be connected to the backplane and in this way the equipment is free from damage.

Overtemperature Protection When the ambient temperature of the power amplifier on the RRU is too high, the NodeB generates overtemperature alarms and immediately switches off the power amplifier to prevent it from damage.

Power Supply Reliability Power supply units of the 3900 series NodeBs are also reliable in the following aspects:

The 3900 series NodeBs have wide-range voltage and surge protection functions.

The 3900 series NodeBs provide power failure protection for programs and data. The boards protect power supply against overvoltage, overcurrent, and reverse

connection of positive and negative poles. Hierarchical shutdown

The outdoor NodeB performs shutdown for the PA according to the backup power capacity.

Surge Protection Reliability The 3900 series NodeBs take surge protection measures on AC/DC power sockets, input/output signal ports (E1 port, interconnection port, and Boolean alarm port), antenna connectors, and GPS ports.

6.4 Software Reliability The software reliability includes the redundancy of key files and data, and the powerful error tolerance of software.

Software Redundancy The 3900 series NodeBs provide redundancy for key files and data such as software versions and data configuration files to prevent them from damage and to ensure the normal running of the NodeBs.

Redundancy of software versions The 3900 series NodeBs provide separate redundancy for software versions including the BootROM software version to avoid version problems. If one version is faulty, the NodeB can switch to the backup version.

Redundancy of data configuration files


Product Description


The 3900 series NodeBs provide separate redundancy for data configuration files to avoid interrupting the running of the files. If the current file is faulty, the backup file can still work properly.

Error Tolerance When the software is faulty, it does not affect the entire NodeB because the system is capable of self-healing. The software error tolerance functions are as follows:

Scheduled detection of key resources The 3900 series NodeBs perform occupancy check on software resources. If resource hang-up occurs due to software faults, the NodeB can release the unavailable resources in time and export logs and alarms.

Task monitoring During the running of software, the 3900 series NodeBs monitor the internal errors of all software and some hardware faults, if any. The 3900 series NodeBs also monitor task progress and running status, report alarms when the system is faulty, and try to restore the task by self-healing.

Data Consistency Check The 3900 series NodeBs perform scheduled or event-triggered data consistency check and can restore the data consistency preferably or preferentially. Also, they generate related logs and alarms.

Dongle The 3900 series NodeBs can detect the irregular running status of the software and then automatically reset the system through the dongles at both software and hardware levels.


Product Description


7 Technical Specifications

7.1 Technical Specifications for the BTS3900 Table 7-1 Technical specifications for the BTS3900

Item Specification

Frequency band

2,100 MHz: RX: 1,920 MHz to 1,980 MHz TX: 2,110 MHz to 2,170 MHz

Capacity 24 cells Maximum configuration: 6 sectors x 4 carriers, 3 sectors x 8 carriers UL: 1,536 CEs DL: 1,536 CEs

Output power One WRFU module supports 4 carriers and the output power over the antenna port is 80 W.

Band 1-way receiver diversity (dBm)

2-way receiver diversity (dBm)

Note Receiver sensitivity

Band I (2100 MHz)

–125.8 –128.6 The receiver sensitivity (full frequency) at the antenna connector of the NodeB according to 3GPP TS 25.104; 12.2 kbit/s; The BER does not exceed 0.001.


Product Description


Item Specification

–126.5 –129.3 The receiver sensitivity (Median performance over reception bandwidth) at the antenna connector of the NodeB that handles 112.2 kbit/s AMR services; The BER does not exceed 0.001.

–125.6 –128.4 The receiver sensitivity (full frequency) at the antenna connector of the NodeB according to 3GPP TS 25.104; 12.2 kbit/s, The BER does not exceed 0.001.

Other Band


Transmission interface

A maximum of 32 E1/T1 ports, 2 FE electrical ports, 2 FE optical ports

Clock and synchronization

Iub interface, GPS, BITS, OCXO free oscillation, clock over IP Precision: 0.05 ppm

Dimensions 900 mm x 600 mm x 450 mm (H x W x D)

Weight Empty cabinet ≤ 70 kg Cabinet in 3 x 1/3 x 2 configuration ≤ 120 kg Cabinet in full configuration ≤ 160 kg

Power supply –48 V DC, Voltage range: –38.4 V DC to –57 V DC +24 V DC, Voltage range: +21.6 V DC to +29 V DC 220 V AC single-phase and three-phases power cable

Configuration Per carrier Typical power consumption

Maximum power consumption

3x1 20 W 520 W 620 W

3x2 20 W 610 W 830 W

3x3 20 W 810 W 1070 W

Power consumption

3x4 20 W 1020 W 1330 W


Product Description


Item Specification

Note: The typical power consumption is reached when the output power per carrier on the cabinet top is 20 W and the DBS3800 works with a 50% load.

The maximum power consumption is reached when the output power per carrier on the cabinet top is 20 W and the DBS3800 works with a 100% load.

Working temperature

–20°C to +50°C

Relative humidity 5% to 85%

Absolute humidity (1 to 25) g/m3

Air pressure 70 kPa to 106 kPa

Protection level IP20

Storage ETSI EN300019-1-1 V2.1.4 (2003-04) class1.2 "Weather protected, not temperature-controlled storage locations"

Transportation ETSI EN300019-1-2 V2.1.4 (2003-04) class 2.3 "Public transportation"

Anti-seismic performance

IEC 60068-2-57 (1999-11) Environmental testing – Part 2-57: Tests – Test Ff: Vibration – Time-history method YD5083-99: Interim Provisions for Test of Anti-seismic Performances of Telecommunications Equipment (telecom industry standard in People's Republic of China

Electromagnetic compatibility

The NodeB meets the Electromagnetic Compatibility (EMC) requirements and complies with the following standards:

R&TTE Directive 1999/5/EC R&TTE Directive 89/336/EEC 3GPP TS 25.113 V3.2.0 (2000-06) ETSI EN 301489-1/23 ETSI EN 301908-1 V2.2.1 (2003-10) ITU-R SM.329-10 The NodeB is Conformité Européenne (CE) certified, where Conformité Européenne is the French equivalent of European Conformity.

7.2 Technical Specifications for the BTS3900A Table 7-2 Technical specifications for the BTS3900A

Item Specification

Frequency band

2,100 MHz: RX: 1,920 MHz to 1,980 MHz TX: 2,110 MHz to 2,170 MHz


Product Description


Item Specification


Output power One RF module supports 4 carriers and the output power over the antenna port is 80 W.



Note


BandⅠ (2100 MHz)



Receiver sensitivity

Other band



A maximum of 32 E1/T1 ports, 2 electrical FE ports, 2 optical FE ports




Product Description


Item Specification

Dimensions RF cabinet: 700 mm x 600 mm x 480 mm (H x W x D) Power cabinet: 700 mm x 600 mm x 480 mm (H x W x D)

Weight Empty RF cabinet ≤ 55 kg Empty power cabinet ≤ 65 kg Cabinet in 3x1 or 3x2 configuration ≤ 165 kg Cabinet in full configuration ≤ 210 kg (without batteries)

Power supply 220 V AC single-phase and three-phases power cable 110 V AC dual-live-wire power cable –48 V DC, Voltage range: –38.4 V DC to –57 V DC

Power consumption (AC) Estimate of typical Power Backup time with Typical power consumption and new battery

Configuration Typical 50% load

Maximum 100% load

50 Ah 100 Ah

3 x 1 630 W 740 W 3.8 hours 8.8 hours

3 x 2 730 W 970 W 3.2 hours 7.5 hours

3 x 3 950 W 1300 W 2.3 hours 5.2hours

Power consumption

3 x 4 1220 W 1580 W 1.6 hours 3.8 hours

Built-in battery 50 Ah, 100 Ah (optional)

Operation temperature

–40°C to +45°C (with solar radiation of 1,120 W/m2) –40°C to +50°C (without solar radiation)


Absolute humidity (1 to 30)g/m3






IEC 60068-2-57 (1999-11) Environmental testing – Part 2-57: Tests – Test Ff: Vibration – Time-history method YD5083-99: Interim Provisions for Test of Anti-seismic Performances of Telecommunications Equipment (telecom industry standard in People's Republic of China.


Product Description


Item Specification




7.3 Technical Specifications for the DBS3900 Table 7-3 Technical specifications for the DBS3900

Item Specification

Frequency band RX (MHz) TX (MHz)

Band I (2100 MHz) 1920–1980 2110–2170

Band II (1900 MHz) 1850–1910 1930–1990

Band V/VI (850 MHz) 824–849 869–894

Frequency band

Band IV (AWS) 1710-1755 2110-2155


Output power One RRU module supports 4 carriers, 60 W output power:



Note Receiver sensitivity

Band I (2100 MHz)

–125.8 –128.6 The receiver sensitivity (full frequency) at the antenna connector of the NodeB according to 3GPP TS 25.104, 12.2 kbit/s; The BER does not exceed 0.001.


Product Description


Item Specification



Other band



A maximum of 48 E1/T1 ports, 2 electrical FE ports, 2 optical FE ports



Dimensions BBU3900: 442 mm x 86 mm x 310 mm (W x H x D) RRU: 480 mm x 270 mm x 150 mm (W x H x D) (without housing)

Weight BBU3900: 11 kg (full configuration) Typical configuration for 3 x 2: 7 kg RRU: 15 kg

Power supply RRU: –48 V DC, Voltage range:–36V DC to –57 V DC BBU3900: –48 V DC, Voltage range:–38.4 V DC to –57 V DC

Power consumption Estimate of typical Power Backup time with typical power consumption and new battery

Configuration

Typical (50% load)

Maximum (100% load)

24 Ah 36 Ah 50 Ah 100 Ah

Power consumption

3x1 400 500 2.2 hours

3.7 hours 5.5 hours 12.0 hours


Product Description


Item Specification

3x2 550 740 1.5 hours


3x3 710 970 1.0 hour


Operation temperature:

BBU3900: –20℃ to +55℃ RRU:

–40℃ to +50℃ (with solar radiation of 1,120 W/m2) –40℃ to +55℃ (without solar radiation)

Relative humidity BBU3900: 5% to 85% RRU: 5% to 100%

Absolute humidity BBU3900: (1 to 25) g/m3 RRU: (1 to 30) g/m3


Protection level BBU3900:IP20 RRU:IP65




IEC 60068-2-57 (1999-11) Environmental testing – Part 2-57: Tests – Test Ff: Vibration – Time-history method YD5083-99: Interim Provisions for Test of Anti-seismic Performances of Telecommunications Equipment (telecom industry standard in People's Republic of China



R&TTE Directive 1999/5/EC R&TTE Directive 89/336/EEC 3GPP TS 25.113 V3.2.0 (2000-06) ETSI EN 301489-1/23 ETSI EN 301908-1 V2.2.1 (2003-10) ITU-R SM.329-10

The NodeB is Conformité Européenne (CE) certified, where Conformité Européenne is the French equivalent of European Conformity.


Product Description


7.4 Technical Specifications for the BTS3900C Table 7-4 Technical specifications for the BTS3900C

Item Specification

Frequency band RX (MHz) TX (MHz)

Band I (2100 MHz) 1920–1980 2110–2170

Band II (1900 MHz) 1850–1910 1930–1990

Band III/ IX (1800 MHz) 1710–1785 1805–1880

Frequency band

Band IV(AWS) 1710-1755 2110-2155

Capacity 3 cells Maximum configuration: 1x3 UL: 384 CEs DL: 384 CEs

Output power One RRU module supports 3 carriers, 60 W output power.



Note


Band Ⅰ (2100 MHz)


Receiver sensitivity

Other Band

–125.6 –128.4 The receiver sensitivity (full frequency) at the antenna connector of the NodeB according to 3GPP TS 25.104; 12.2 kbit/s, The BER does not exceed 0.001.


Product Description


Item Specification



A maximum of 8 E1/T1 ports, 2 FE electrical ports, 2 FE optical ports



Dimensions (H x W x D)

600 mm x 400 mm x 390 mm 600 mm x 240 mm x 390 mm (used as outdoor BBU)

Weight (kg) 35

Power supply -48 V DC Voltage range: –38.4 V DC to –57 V DC 220 V AC single-phase power cable 110 V AC dual-live-wire power cable

Power consumption

Per carrier Typical Maximum

1x1 20 W 230 W 260 W

1x2 20 W 280 W 350 W

1x3 20 W 330 W 420 W

Power consumption

Note: The typical power consumption is reached when the output power per carrier on the cabinet top is 20 W and the BTS3900C works with a 50% load.

The maximum power consumption is reached when the output power per carrier on the cabinet top is 20 W and the BTS3900C works with a 100% load.

Operation temperature

–40°C to +45°C (with solar radiation of 1,120 W/m2) –40°C to +50°C (without solar radiation)


Absolute humidity (1 to 30) g/m3



Storage ETSI EN300019-1-1 V2.1.4 (2003-04) class1.2”Weather protected, not temperature-controlled storage locations”.


Product Description


Item Specification

Transportation ETSI EN300019-1-2 V2.1.4 (2003-04) class 2.3”Public transportation”.


IEC 60068-2-57 (1999-11) Environmental testing – Part 2-57: Tests – Test Ff: Vibration – Time-history method YD5083-99: Interim Provisions for Test of Anti-seismic Performances of Telecommunications Equipment (telecommunication industry standard in People's Republic of China.




3.ran10.0 3900 series wcdma nodeb product description

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