DBS3900 WiMAX V300R002 Product Description V3[1]

DBS3900 WiMAX V300R002Product Description

Issue V3.5

Date 2010-10-11

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2010. 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 purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. 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.

Huawei Technologies Co., Ltd.

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DBS3900WiMAX V300R002ProductDescription

V3.5 (2010-10-11) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd. Page 3 of 55

Contents

1 Introduction ............................................................................................................................. 5 1.1 Orientation .......................................................................................................................................... 5 1.2 Benefits ............................................................................................................................................... 6

2 Architecture ........................................................................................................................... 10 2.1 Overview ........................................................................................................................................... 10 2.2 Hardware Structure ........................................................................................................................... 11

2.2.1 BBU3900 ................................................................................................................................. 11 2.2.2 RRU3702 ................................................................................................................................. 14

2.3 Software Structure ............................................................................................................................ 16 2.4 Antenna System ................................................................................................................................ 17 2.5 Auxiliary Devices ............................................................................................................................. 19

2.5.1 APM30H Series Devices ........................................................................................................ 19 2.5.2 EMU and EMUA .................................................................................................................... 22 2.5.3 OMB ........................................................................................................................................ 24 2.5.4 DCDU ...................................................................................................................................... 25

3 Application Scenarios of the DBS3900 WiMAX .................................................................... 26 3.1 Overview ........................................................................................................................................... 26 3.2 Application Scenarios ...................................................................................................................... 26

4 Configurations ....................................................................................................................... 30 4.1 Overview ........................................................................................................................................... 30 4.2 Typical Configuration ...................................................................................................................... 30

5 Operation and Maintenance .................................................................................................. 32 5.1 Overview ........................................................................................................................................... 32 5.2 Benefits ............................................................................................................................................. 33

6 Technical Specifications ........................................................................................................ 36 6.1 Capacity Specifications .................................................................................................................... 36 6.2 RF Specifications ............................................................................................................................. 37 6.3 Engineering Specifications .............................................................................................................. 39 6.4 Surge Protection Specifications ....................................................................................................... 41 6.5 Reliability Specifications ................................................................................................................. 42




6.6 Environmental Requirements .......................................................................................................... 42 6.6.1 Requirements for the Operating Environment ...................................................................... 42 6.6.2 Requirements for the Transportation Environment .............................................................. 44 6.6.3 Requirements for the Storage Environment .......................................................................... 47

6.7 Compliance Standards of the DBS3900 WiMAX .......................................................................... 50

7 Acronyms and Abbreviations ................................................................................................ 54




1 Introduction

As a distributed WiMAX BS, which provides high-speed wireless access to the WiMAX network, and has features such as high bandwidth, large capacity, wide coverage, and high spectrum usage.

1.1 Orientation The DBS3900 WiMAX is the distributed WiMAX BS and complies with IEEE 802.16e standards. Currently, the DBS3900 WiMAX satisfies the application requirements of high-end mobile WiMAX networks, and thus is applicable to global markets. Its coverage and capacity are expanded through 4T4R multi-antenna technologies, its maintainability and testability are improved, and thus it provides subscribers with the wireless broadband access services of large capacity and high quality.

The WiMAX system consists of the mobile station/subscriber station (MS/SS), access service network (ASN), and connectivity service network (CSN). Figure 1-1 shows the position of the BS (DBS3900 WiMAX) in the WiMAX network.




Figure 1-1 WiMAX network structure

The MS/SS is the subscriber terminal on the WiMAX network. With the MS/SS, the subscriber uses the services provided by the operator.

The ASN consists of the BS and ASN-GW, and provides wireless access services for the CSNs of various network service providers (NSPs). One ASN can be connected to multiple CSNs.

The CSN consists of the router, the authentication, authorization and accounting (AAA) agent/server, and the Internet gateway, and supports subscriber databases. In addition, it performs functions such as IP connection, mobility management, QoS management, and billing management.

1.2 Benefits The DBS3900 WiMAX uses advanced technologies, has outstanding performance, and reduces the network construction cost.

Advanced BS Platform Based on Huawei fourth-generation BS platform, the DBS3900 WiMAX has the following features:

Supporting smooth evolution from IEEE 802.16e to IEEE 802.16m and LTE/+TDD, and thus protecting the operator's investment

Supporting the all-IP network architecture so that the DBS3900 WiMAX can benefit from the high bandwidth and quick development of the IP network and effectively use abundant IP transmission resources

Supporting the multi-carrier technology (With software configuration, one sector supports multiple carriers to provide larger capacity. In this way, the number of new sites required for capacity expansion decreases, and the capacity expansion cost is cut down.)




Aiming at environment protection − The DBS3900 WiMAX uses efficient power amplification technologies to

reduce power consumption. − The RRU3702 works in natural cooling mode without any cooler and reduces

power consumption. − With software configuration, the RRU3702 can be split into two 2T2R RRUs

to cover two sectors. In this way, the number of required RRUs is reduced, and thus the BS power consumption is reduced.

− With the multi-carrier technology, two carriers share one RF channel. In this way, compared with two RF channels, the power consumption is reduced.

Wide Network Coverage With advanced technologies, the DBS3900 WiMAX has wide coverage to ensure high network performance.

Supporting multi-antenna technologies − On the uplink, the DBS3900 WiMAX supports collaborate spatial multiplex

(CSM) and maximum ratio combining (MRC) to obtain uplink gain, expand uplink coverage, and improve system capacity.

− On the downlink, the DBS3900 WiMAX supports two-antenna multiple input multiple output (MIMO) and four-antenna MIMO technologies such as MIMO A, MIMO B, MIMO A/MIMO B adaptive handovers, cyclic delay diversity (CDD), and Matrix A+CDD/Matrix B+CDD adaptive handovers. With multi-antenna technologies, the DBS3900 WiMAX obtains the downlink diversity gain and power gain to expand downlink coverage and improve system capacity.

Supporting the hybrid automatic repeat request (HARQ) technology − It is a technology integrating forward error correction (FEC) and automatic

repeat request (ARQ) to improve transmission quality and to ensure that information is correct.

Supporting open loop power control and closed loop power control, which can minimize fading effect and interference to improve transmission quality − In open loop power control, the MS power can be timely adjusted according to

the quality of downlink signals but the adjustment accuracy is not high. − In closed loop power control, the MS power can be adjusted by step according

to the quality of uplink signals, and thus the adjustment accuracy is high. − Open loop power control and closed loop power control are dynamically

switched. In this way, the MS power can be adjusted timely, and the power range can be accurately controlled.

Supporting adaptive modulation and coding (AMC), with which the system specifies appropriate modulation and coding modes according to channel quality − When channel quality is good, the high-order modulation mode and high-rate

coding mode are used to implement high transmission rate. − When channel quality is poor, low-order modulation mode and low-rate

coding mode are used to ensure transmission link quality.




Easy Installation for Less CAPEX The DBS3900 WiMAX is compact and light, and supports multiple installation modes to reduce the footprint and the labor cost.

The RRU is small and light [21 kg (46.31 lb)], and thus it can be installed on a pole, tower, wall, or stand. In addition, the RRU can be installed near the antenna system to reduce feeder length and loss so that the feeder cost is reduced.

The BBU can be installed in the 19-inch cabinet such as the GSM cabinet or APM30H to avoid extra cost, as shown in Figure 1-2.

Figure 1-2 BBU3900 in the 19-inch cabinet

Various Spectrum Applications The DBS3900 WiMAX supports the 2.3 GHz band (2.3 GHz to 2.4 GHz), 2.5 GHz band (2.496 GHz to 2.690 GHz), and 3.5 GHz band (3.4 GHz to 3.6 GHz).

The DBS3900 WiMAX supports the following bandwidths: 5 MHz, 7 MHz (available only when the 3.5 GHz band is supported), and 10 MHz. Therefore, it satisfies the requirements of the operators having different frequency resources. In addition, various services can be provided through existing frequency resources and newly-added frequency resources.

WiMAX Network with High Security The DBS3900 WiMAX supports device authentication, subscriber authentication, message authentication, and air interface data encryption to improve network security.

Device authentication and subscriber authentication can effectively prevent unauthorized devices and subscribers from having access to resources and service on the WiMAX network.

Message authentication is implemented through the cipher-based message authentication code (CMAC) to ensure the validity of management messages and to prevent the messages from modification and forgery.

Air interface data encryption ensures the security of the data transmitted over the air interface and prevents subscriber data from interception and modification.




Flexible Networking The DBS3900 WiMAX supports four networking modes.

The frequency reuse mode is denoted with N x S x K (N indicates the number of BSs forming a cluster on the network, S indicates the number of sectors on each BS, and K indicates the number of frequencies at which each BS works).

PUSC 1x3x1: The three sectors of a BS are used as a reuse cluster, each sector uses 1/3 subchannels at a frequency, and the equidirectional sectors on different BSs use the same subchannel.

PUSC with all SC 1x3x3: The three sectors of a BS are used as a reuse cluster, the three sectors of each BS work at a frequency respectively, and the equidirectional sectors on different BSs work at the same frequency. Different BSs use different UL_PermBase and DL_PermBase to balance interference, and thus the co-channel interference between cells is reduced.

FFR 1x3x1 (same-frequency FFR): The three sectors of a BS are used as a reuse cluster and work at a frequency. In addition, the border area of each sector uses some subchannels to ensure coverage, and the center area of each sector uses all the subchannels to improve spectrum usage.

FFR 1x3x3 (inter-frequency FFR): The three sectors of a BS are used as a reuse cluster, each sector works at a frequency respectively, the border area of each sector uses some subchannels at the corresponding frequency, and the center area of each sector uses all the subchannels at the corresponding frequency.

Reliable Clock Synchronization As a synchronous communications system, the WiMAX system requires correct synchronization signals. The DBS3900 WiMAX obtains satellite synchronization signals in two ways:

A GPS satellite card is integrated into the main control board and connects the satellite antenna and the device, and thus GPS satellite signals can be received.

When both GPS satellite signals and GLONASS satellite signals need to be received, the USCU must be installed. The GPS/GLONASS satellite card is integrated into the USCU and connects the satellite antenna and the device, and thus GPS satellite signals and GLONASS satellite signals can be received. The satellite card calculates and combines two types of signals to obtain more accurate signals.

When satellite signals cannot be received, the system automatically switches to the free-run mode, where the BS can work normally for eight hours.




2 Architecture

This chapter describes the hardware structure, software structure, antenna system, and auxiliary devices of the DBS3900 WiMAX.

2.1 Overview The DBS3900 WiMAX uses the modular design. It has only two basic functional modules: BBU and RRU. The BBU communicates with the RRU through the high-rate CPRI interface.

The RRU3702 is connected to the BBU3900 through optical fibers and to the antenna system through feeders or jumpers, as shown in Figure 2-1.

Figure 2-1 BBU3900 and RRU3702




2.2 Hardware Structure This section describes the hardware structure of the BBU3900 and RRU3702.

2.2.1 BBU3900 As the baseband subsystem of the DBS3900 WiMAX, the BBU3900 performs baseband processing, signaling processing, radio resource management, OM, and clock synchronization, and provides the transmission port for the ASN-GW.

Exterior of the BBU3900 Figure 2-2 shows the exterior of BBU3900.

Figure 2-2 Exterior of the BBU3900

Board Configurations of the BBU3900 Figure 2-3 shows the board configurations of the BBU3900.

Figure 2-3 Board configurations of the BBU3900




Table 2-1 Mandatory boards

Board Description Function

BMPT BWA Main Processing&Transmission Unit

It controls and manages the entire BS system, provides clock synchronization signals for the BS system, and provides the R6 interface for transmission.

BBBI BWA BaseBand processing and radio Interface unit

It implements uplink and downlink data baseband processing, and provides the CPRI interface for communication with the RRU.

UPEU Universal Power and Environment Interface Unit

It converts -48 V DC power supply into +12 V DC power supply, and provides the environment monitoring signal port.

FAN FAN Unit It cools the BBU3900.

Table 2-2 Optional boards

Board Description Function

UTRP Universal Extension Transmission Processing Unit

It supports eight E1/T1 signals.

USCU Universal Satellite Card and Clock Unit

It integrates with the GLONASS/GPS satellite card, provides the input port for external signals such as satellite clock signals, and provides clock synchronization signals for the DBS3900 WiMAX.

UELP Universal E1/T1 Lightning Protection Unit

When the BBU3900 is connected to the E1/T1 cable in an outdoor scenario, the UELP must be installed to provide surge protection for the E1/T1 cable. NOTE

The UELP is installed in the Signal Lightning Protection Unit (SLPU). The SLPU supports a maximum of four UELPs.

UEIU Universal Environment Interface Unit

It transmits environment monitoring device information and alarm information to the main control board.

Physical Ports on the BBU3900 Table 2-3 describes the physical ports on the BBU3900.




Table 2-3 Physical ports on the BBU3900

Module/Board Silkscreen

Connector Type

Quantity Function

BMPT FE/GE0 FE/GE1

RJ45 2 It is connected to the transmission device through the Ethernet cable.

SFP0 SFP1

LC 2 It is connected to the transmission device through the optical cable.

USB USB 1 It is reserved.

TST USB 1 It is the clock test port.

ETH RJ45 1 It is the local maintenance port, through which the Web LMT maintains network elements (NEs) locally.

GPS port SMA 1 It is the GPS antenna port.

BBBI CPRI0 CPRI1 CPRI2

LC 3 It is connected to the BBU and RRU.

UPEU PWR 3V3 1 It is the -48 V DC power supply input port.

MON0 MON1

RJ45 2 It is connected to the external monitoring device and transmits environment alarm signals.

EXT-ALM0 EXT-ALM1

RJ45 2 It supports eight external alarm Boolean signals.

UTRP E1/T1(0-3) E1/T1(4-7)

DB26 2 It is connected to the transmission device through the E1/T1 cable.

USCU GPS SMA 1 It is the GPS antenna port.

RGPS Plug-in 2 It is reserved.

BITS SMA 1 It is reserved.

TOD0 TOD1

RJ45 2 It is reserved.

M-1PPS RJ45 1 It is reserved.

UELP INSIDE DB25 1 It supports four E1/T1 input signals and is connected to the UTRP.




Module/Board Silkscreen

Connector Type

Quantity Function

OUTSIDE DB26 1 It supports four E1/T1 output signals and is connected to customer equipment.

UEIU MON0 MON1

RJ45 2 It is connected to the external monitoring device and transmits environment alarm signals.

EXT-ALM0 EXT-ALM1

RJ45 2 It supports eight dry contact signals and receives external alarm Boolean signals.

2.2.2 RRU3702 As a remote RF unit, the RRU3702 is the IF and RF subsystem of the DBS3900 WiMAX. It implements the conversion between baseband signals, IF signals, and RF signals, demodulates the received radio signals, modulates the signals to be transmitted, and amplifies the signal power.

Exterior of the RRU3702 Figure 2-4 shows the exterior of the RRU3702.




Figure 2-4 Exterior of the RRU3702

Physical Ports on the RRU3702 The RRU3702 has a modular structure with its ports at the module bottom and on the cabling cavity. Table 2-4 describes the physical ports on the RRU3702.

Table 2-4 Physical ports on the RRU3702

Silkscreen Connector Type Quantity Description

TX RX CPRI0 TX RX CPRI1

LC 2 Transmitting service data, clock signals, and synchronization information

ANTA_TX/RX ANTB_TX/RX ANTC_TX/RX ANTD_TX/RX

N-shaped female connector

4 Connecting the RRU and the antenna




Silkscreen Connector Type Quantity Description

RTN0(+), NEG0(-) RTN1(+), NEG1(-)

OT terminal 2 They are used for -48 V DC input. Two groups of terminals are connected. The terminals RTN0(+) and NEG0(-) are recommended. The terminals RTN1(+) and NEG1(-) are reserved.

Remote electrical tilt (RET) port

DB9 1 Connecting to the RET antenna

ETH RJ45 1 Port for internal commissioning

2.3 Software Structure The software system of the DBS3900 WiMAX is composed of six components.

The software structure of the DBS3900 WiMAX is composed of platform software, operation and maintenance software, physical layer resource software, data encapsulation software, service control software, and R6 interface control software. The upper layers of the platform software are physical layer resource software, data encapsulation software, and service control software. The operation and maintenance software are at the same layer with the physical layer resource software, data encapsulation software, and service control software, as shown in Figure 2-5.

Figure 2-5 Software structure of the DBS3900 WiMAX




2.4 Antenna System The antenna system comprises the RF antenna system and satellite antenna system.

RF Antenna System The RF antenna system receives and transmits BS signals. Figure 2-6 shows the structure of the RF antenna system.

Figure 2-6 Structure of the RF antenna system

(1) RF antenna (2) Jumper (3) Feeder

If the RRU3702 is installed on the tower and close to the antenna, only the jumper is used to connect the antenna and the RRU3702.

The DBS3900 WiMAX often uses the two-port antenna and the four-port antenna.

If the RRU3702 is used as two 2T2R RRUs, the two-port antenna is recommended for implementing the two-antenna MIMO function.

If the RRU3702 is used as the 4T4R RRU, the four-port antenna is recommended for implementing the four-antenna MIMO function.

The DBS3900 WiMAX supports the RET antenna. The RS485 signal cable connects the RET antenna and the RRU. The maintenance personnel can log in to the M2000 in the equipment room to remotely maintain and manage the RET antenna, such as automatic scanning, antenna tilt setting, and status query.




Figure 2-7 Remote adjustment on the RET antenna

Satellite Antenna System The satellite antenna system receives GPS signals or GLONASS signals. Figure 2-8 shows the structure of the satellite antenna system.

Figure 2-8 Structure of the satellite antenna system

(1) GPS antenna (2) Feeder (3) Surge protector




2.5 Auxiliary Devices The auxiliary devices of the DBS3900 WiMAX refer to the power distribution device and environment monitoring device (EMUA). The operator can select the APM30H or DCDU as the power distribution device according to the power supply configured for the site.

2.5.1 APM30H Series Devices The APM30H series devices include the power supply cabinet APM30H, the battery cabinets IBBS200T and IBBS200D, and the transmission cabinet TMC11H. The APM30H and IBBS200T/IBBS200D can be stacked.

APM30H The APM30H is an outdoor power supply cabinet. It provides the distributed BS with -48 V DC power supply and provides spaces for the installation of the BBU3900 and customer equipment to facilitate rapid network deployment. In addition, the APM30H performs the following functions: DC power supply, battery management, power supply system monitoring, power distribution, surge protection, temperature control, and accommodation of customer equipment.

Figure 2-9 shows the exterior of the APM30H.

Figure 2-9 Exterior of the APM30H

Table 2-5 Technical specifications of the APM30H

Parameter Specification

Dimensions of the cabinet without the base (width x height x depth)

600 mm (23.62 in.) x 700 mm (27.56 in.) x 480 mm (18.90 in.)





Typical weight of the cabinet without customer transmission equipment

≤ 91 kg (200.66 lb)

Working temperature -40°C (-40°F) to +50°C (+122°F) (solar radiation ≤ 1,120±10% W/m2). The heater must be configured when the working temperature is lower than -20°C (-4°F).

Input voltage type 220 V AC single-phase input 220 V AC three-phase input 110 V AC dual-live-wire input 120 V AC dual-live-wire input

Frequency of input voltage 50/60 Hz

Range of output voltage -43.2 V DC to -57 V DC

Space for equipment installation

The APM30H provides a 7 U space for the customer equipment.

Power backup The APM30H can connect to a single battery cabinet to support up to the 48 V 184 Ah battery group

The APM30H can connect to two stacked battery cabinets to support up to 48 V 368 Ah battery group.

Cooling mode The APM30H dissipates heat through the core of the heat exchanger and the inner and outer air circulation fans, and thus its heat dissipation insulation is good.

IBBS200T and IBBS200D When the customer requires the long-term power backup, the IBBS200D or IBBS200T is recommended. The IBBS200T and IBBS200D support a maximum of -48 V 184 Ah DC power backup and provide long-term power backup for the distributed BS.

The IBBS200T is the integrated battery backup system (with TEC cooler), and dissipates heat through the built-in TEC cooler. Figure 2-10 shows the exterior of the IBBS200T.

The IBBS200D is the integrated battery backup system (with direct cooler), and thus it works in direct cooling mode. Figure 2-10 shows the exterior of the IBBS200D.




Figure 2-10 Exteriors of the IBBS200T and IBBS200D

Table 2-6 Technical specifications of the IBBS200T and IBBS200D

Parameter Specification (IBBS200T) Specification (IBBS200D)


600 mm (23.62 in.) x 700 mm (27.56 in.) x 480 mm (18.90 in.)

600 mm (23.62 in.) x 700 mm (27.56 in.) x 480 mm (18.90 in.)

Weight of the cabinet without storage batteries

≤ 70 kg (154.35 lb) ≤ 50 kg (110.25 lb)

Working temperature

-40°C (-40°F) to +50°C (+122°F) (solar radiation ≤ 1,120±10% W/m2)

-40°C (-40°F) to +45°C (+113°F) (solar radiation ≤ 1,120±10% W/m2) NOTE

If the daily average temperature of the month with the lowest average temperature in a year is lower than -20°C (-4°F), heating films are required.




TMC11H If larger space is required for customer equipment, the TMC11H is recommended. The TMC11H can provide a maximum of 11 U space for customer equipment. The BBU3900 can be installed in the TMC11H.

The TMC11H dissipates heat through the core of the heat exchanger and the outer and inner air circulation fans. Therefore, its heat dissipation insulation is good and it is applicable to outdoor scenarios.

Figure 2-11 shows the exterior of the TMC11H.

Figure 2-11 Exterior of the TMC11H

Table 2-7 Technical specifications of the TMC11H



600 mm (23.62 in.) x 700 mm (27.56 in.) x 480 mm (18.90 in.)

Weight without the BBU and customer equipment

≤ 57 kg (125.69 lb)

Working temperature -40°C (-40°F) to +50°C (+122°F) (solar radiation ≤ 1,120±10% W/m2)

2.5.2 EMU and EMUA The EMU and EMUA are used to monitor the environment in the equipment room and in the cabinet.




The EMU and EMUA are connected to sensors, and implement real-time monitoring and remote monitoring. The EMU and EMUA support a maximum of 32 Boolean signals and 4 analog signals.

Figure 2-12 shows the exteriors of the EMU and EMUA.

Figure 2-12 Exteriors of the EMU and EMUA

Table 2-8 Technical specifications of the EMU and the EMUA

Parameter Specifications of the EMU Specifications of the EMUA

Storage temperature

–40°C (-40°F) to +70°C (158°F) (non condensing)

–40°C (-40°F) to +70°C (158°F) (non condensing)

Working temperature

–5°C (23°F) to +55°C (131°F) –5°C (23°F) to +55°C (131°F)

Storage humidity

5% RH to 95% RH 5% RH to 95% RH

Working humidity

10% RH to 90% RH 10% RH to 90% RH

Working voltage type

DC DC

Rated working voltage

–48 V EMUA2416 and EMUA2432: 24 V; EMUA4832: –48 V

Rated working current

0.2 A EMUA2416 and EMUA2432: 0.4 A; EMUA4832: 0.2 A




Parameter Specifications of the EMU Specifications of the EMUA

Dimensions With the mounting ear: 252 mm (9.92 in.) x 258 mm (10.16 in.) x 98 mm (3.86 in.)

Without the mounting ear: − 252 mm (9.92 in.) x 219 mm

(8.62 in.) x 91 mm (3.58 in.) (with the cord end terminal)

− 52 mm (2.05 in.) x 209 mm (8.23 in.) x 91 mm (3.58 in.) (without the cord end terminal)

483 mm (19.02 in.) x 284 mm (11.18 in.) x 44 mm (1.73 in.)

Net weight Type A EMU: 2.5 kg (5.51 lb) Type B EMU: 2.8 kg (6.17 lb)

About 3.5 kg (7.72 lb)

2.5.3 OMB The OMB houses the BBU3900, AC/DC converter, and transmission equipment, meeting the outdoor application requirements of the BBU3900.

Figure 2-13 shows the exterior of the OMB.

Figure 2-13 OMB




Table 2-9 Technical specifications of the OMB


Dimensions (width x height x depth)

240 mm (9.45 in.) x 600 mm (23.62 in.) x 390 mm (15.35 in.)

Working voltage -48 V DC 220 V AC single phase 110 V AC dual-live wire

2.5.4 DCDU The DCDU is an indoor surge protection and power distribution box for DC power supply, performing power distribution for the DBS3900 WiMAX.

The DCDU performs the following functions:

Providing surge protection for DC power input Converting the -48 V DC power input into multiple -48 V DC power outputs and

providing simple power distribution functions Supporting DC power surge protection alarms

Figure 2-14 shows the exterior of the DCDU.

Figure 2-14 Exterior of the DCDU




3 Application Scenarios of the DBS3900 WiMAX

This chapter describes application scenarios of the DBS3900 WiMAX.

3.1 Overview The DBS3900 WiMAX is easily installed with a small footprint and has low power consumption. Therefore, it can coexist with the existing site. With these features, the DBS3900 WiMAX fully addresses operators' concern over site acquisition, facilitates network planning and optimization, reduces network construction time, and thus enables operators to efficiently deploy a high-performance WiMAX network with a low total cost of ownership (TCO) by minimizing the investment in electricity, space, and labor.

3.2 Application Scenarios This section describes application scenarios of the DBS3900 WiMAX.

Outdoor Distributed Installation (APM30H) There are two types of scenarios for BBU+RRU+APM30H:

If the site is configured with the -48 V DC power supply and has no requirements for power backup, only the transmission cabinet TMC11H is used. The BBU and DCDU are installed in the TMC11H, and the RRU is installed on the wall, pole, or tower. The DCDU distributes the DC power supply to the BBU, RRU, and related transmission devices.

If the site is configured with only the 220 V AC power supply, the APM30H can be installed as required. The BBU and transmission devices are installed in the APM30H, and the RRU is installed on a wall, pole, or tower. − If power backup is not required, only the outdoor power cabinet APM30H is

used. It provides a maximum of 7U space for the installation of the customer's equipment.




− When power backup is required, you can configure the battery cabinet IBBS200D or IBBS200T, each of which can be configured with a built-in -48 V 184 Ah storage battery group.

− If larger space is required, you can configure the transmission cabinet TMC11H, which can provide extra 11U spaces.

Figure 3-1 shows the typical scenario of BBU+RRU+APM30H.

Figure 3-1 Typical scenario of BBU+RRU+APM30H

Outdoor Distributed Installation (OMB) When the site is configured with 220 V AC power supply and has no requirement for power backup, the BBU and the AC/DC converter are installed in the outdoor mini box (OMB) The OMB is installed on the pole, and the RRU is installed on the wall, pole, or tower. This scenario facilitates the site acquisition and reduces the site lease cost.

Figure 3-2 shows the typical scenario of BBU+RRU+OMB.




Figure 3-2 Typical scenario of BBU+RRU+OMB

Co-Site Application If the DBS3900 WiMAX is installed at the same site with a 2G or 3G BS, the BBU can be installed in a standard 19-inch cabinet that provides 2U space, and the RRU can be installed on the rooftop or the tower, and close to the antenna. In this scenario, the BBU and RRU can share the power backup system and transmission system with the 2G or 3G BS, and thus network construction cost and period are reduced.

Figure 3-3 shows the typical scenario of the co-site application.

Figure 3-3 Typical scenario of the co-site application




Indoor Centralized Installation The DBS3900 WiMAX supports indoor installation, and the BBU and RRU can be easily installed on the L-shaped stand. In this case, the existing equipment room and devices can be shared, and thus the installation space is saved.

In Figure 3-4, the BBU is installed on the baseband rack, and the RRU is installed on the RF rack.

A maximum of 6 RRUs can be installed on an RF rack. The baseband rack provides 7U space for installation.

Figure 3-4 Indoor centralized installation




4 Configurations

This chapter describes the typical configurations of the DBS3900 WiMAX.

4.1 Overview A single DBS3900 WiMAX supports a minimum of O(1) configuration, and a maximum of S (2/2/2) configuration. It can be added with the BBBI, RRU, optical module, and optical cable, and added with sector carriers through software configuration to expand capacity smoothly.

4.2 Typical Configuration This section describes the typical configurations supported by the DBS3900 WiMAX and the related hardware configuration.

Table 4-1 lists the typical configurations of the DBS3900 WiMAX.

Table 4-1 Typical configurations of the DBS3900 WiMAX

Configuration Type

Number of BBBIs

Number of BMPTs

Number of RRU3702s

Number of CPRI Optical Modules

O(1), 2T2R 1 1 1 One pair



O(2), 4T4R 1 1 1 Two pairs

S(1/1/1), 2T2R 1 1 2 Two pairs

S(1/1/1), 4T4R 1 1 3 Three pairs

S(1/1/1/1), 2T2R 2 1 2 Two pairs




Configuration Type

Number of BBBIs

Number of BMPTs

Number of RRU3702s

Number of CPRI Optical Modules

S(2/2/2), 2T2R 2 1 2 Four pairs

S(2/2/2), 4T4R 2 1 3 Six pairs




5 Operation and Maintenance

The DBS3900 WiMAX provides an OM system, which has the advantages of the Man-Machine Language (MML) and a graphic user interface (GUI). This OM system enables a universal hardware-independent OM mechanism, answering users' needs for OM functions from various aspects.

5.1 Overview The DBS3900 WiMAX supports two OM modes: centralized OM and local OM.

Centralized OM: On the iManager M2000 in the equipment room, the user can remotely maintain BSs in a centralized manner, such as data configuration, remote commissioning, alarm monitoring, performance monitoring, software upgrade, and network adjustment. This OM mode can save time and labor and thus reduce the operating expense (OPEX).

Local OM: With a computer, the user maintains the BS by logging in to the BS through the web site, such as alarm management, data configuration through man machine language (MML) commands, network adjustment, and subscriber management. The LMT software is not required for the computer.

Figure 5-1 shows the typical networking for OM.




Figure 5-1 Typical networking for OM

5.2 Benefits The OM functions provided by the DBS3900 WiMAX involve software management, fault management, performance management, configuration management, site deployment management, equipment management, environment monitoring, tracing management, and log management.

Configuration Management Configuration management refers to configuring, querying, backing up, exporting, and recovering BS configuration data.

There are two modes of configuring DBS3900 WiMAX data: MML and graphic user interface (GUI).

The MML mode is applicable only for single-BS configuration. In the GUI mode, the user can use the WCS integrated into the M2000 client to configure BSs in batches.

Fault Management The fault management system of the DBS3900 WiMAX detects hardware faults, environment faults, and transmission faults, isolates the faulty components, and reports alarms.

The user can block the faulty carrier to prevent the neighboring cell from interference. Therefore, the impact of faulty cell on the other components of the BS can be avoided, and the impact on the system services is minimized.

The alarm management system of the DBS3900 WiMAX timely detects and reports the faults or exceptions on devices. On the iManager M2000, alarm information is displayed, and the suggestions for clearing alarms are provided.




Performance Management The performance management system of the DBS3900 WiMAX provides an all-around visual operating environment. The user can perform performance management on the devices of the entire network. Performance management refers to creating, modifying, and querying performance measurement tasks and to managing measurement results. The user can trace the running statuses of the network and devices, assess the performance of the network and devices, and obtain network optimization references through performance management.

On the M2000, the user can set the subscription period and object. Then, performance measurement results are displayed on the client of the M2000 periodically. The subscription period can be set to 30 minutes.

Software Management The DBS3900 WiMAX provides software version query, software upgrade, and patch management.

Software version query refers to querying the BS software version through MML commands.

One-key software upgrade refers to upgrading the software of multiple BSs through GUI upgrade wizard on the M2000 client, and involves downloading and activating the software, displaying the upgrade progress and status during the upgrade, sending the upgrade report during the upgrade, and verifying services after the upgrade. If the software upgrade fails or the network performance deteriorates greatly in the call test after the upgrade, the user can perform version rollback through the GUI upgrade wizard on the M2000 client to minimize the impact of upgrade failure on the system.

Patch management involves patch query, patch installation, and rollback.

Site Deployment Management The site deployment solution provided by the DBS3900 WiMAX includes boards in cabinets transportation, automatic detection of the BS, and local OM without software commissioning. All these functions greatly contribute to the reduction of the deployment difficulties and the shortening of work time.

With the automatic detection of the BS, the user imports the BS ESN, IP address, and the relevant information to the DHCP server through the DHCP tool on the remote client of the M2000. Then, the DHCP server automatically allocates an IP address to the BS according to the BS ESN, and sets up the OM link between the BS and the M2000.

The software commissioning is performed in the network management center rather than on site because the local commissioning is not required.

Environment Monitoring The DBS3900 WiMAX performs comprehensive environment monitoring functions through the environment monitoring device. Therefore, the unmanned DBS3900 WiMAX can be deployed across wide areas and operate adverse environments.




The environment monitoring device is connected to the BBU3900 alarm port through the monitoring signal cable. When the environment monitoring device detects an alarm of access control, infrared sensing, smoke sensing, water sensing, or temperature monitoring, or a customized alarm, the BBU reports the alarm to the M2000 and informs the attendant.

Tracing Management Tracing management refers to tracing the R1 interface, R6 interface, subscribers, and system resources through the M2000.

Interface tracing management refers to tracing and resolving the messages over the R1 and R6 interfaces, facilitating fault location.

Subscriber tracing management refers to tracing a single subscriber's messages over the R1 and R6 interfaces. In this way, the user can monitor the information such as signal quality.

System resource tracing refers to tracing carrier status, board CPU usage, and board temperatures. In this way, the user can learn about the usage of system resources.

Log Management You can back up operation logs, security logs and alarm logs in a specified directory and at a specified interval.




6 Technical Specifications

This chapter describes the standards that the DBS3900 WiMAX complies with and its technical specifications.

6.1 Capacity Specifications The capacity specifications of the DBS3900 WiMAX include the frequencies, bandwidths, and data transmission rates that the DBS3900 WiMAX supports.

Frequency and Bandwidth The 2.5 GHz band (2.496 GHz to 2.690 GHz) is supported. The frequency

interval is 250 kHz or 200 kHz. The channel bandwidth is 5 MHz or 10 MHz, and it can be configured through software.

The 2.3 GHz frequency band (from 2.3 GHz to 2.4 GHz) is supported. The frequency interval is 250 kHz. The channel bandwidth is 5 MHz or 10 MHz, and can be configured through software.

The 3.5 GHz frequency band (from 3.4 GHz to 3.6 GHz) is supported. The frequency interval is 250 kHz. The channel bandwidth is 5 MHz, 7 MHz, or 10 MHz, and can be configured through software.

The RRU3702 can be configured with various filters to meet the network construction requirements of operators for different frequencies and bandwidths.

Number of Subscribers When the bandwidth is 10 MHz, each sector carrier can support a maximum of 1024 online subscribers (including active subscribers and idle subscribers).




Throughput over the Air Interface

Bandwidth (MHz) Permutation

Sub-Frame Ratio

Downlink peak throughput of a carrier (Mbit/s)

Uplink peak throughput of a carrier (Mbit/s)

10 PUSC with all SC

31:15 34.21 7.98

7 PUSC with all SC

21:12 19.96 5.99

5 PUSC with all SC

31:15 17.11 3.99

6.2 RF Specifications The RF specifications of the DBS3900 WiMAX include the transmit specifications and receive specifications of each band.

Transmit Specifications The transmit specifications of the DBS3900 WiMAX are as follows:

At the 2.3 GHz or 2.5 GHz band, the maximum transmit power of each antenna port of RRU3702 is 10 W (40 dBm), the maximum total transmit power of each RRU3702 is 40 W (46 dBm).

At the 3.5 GHz band,, the maximum transmit power of each antenna port of RRU3702 is 7 W (38.5 dBm), the maximum total transmit power of each RRU3702 is 28 W (44.5 dBm).

The transmit power can be adjusted through commands, and the adjustment step is 1 dBm.

Spurious emissions: complying with the ITU-R standards

9 kHz to 150 kHz: -36 dBm/1 kHz 150 kHz to 30 MHz: -36 dBm/10 kHz 30 MHz to 1 GHz: -36 dBm/100 kHz 1 GHz to 12.75 GHz: -30 dBm/1 MHz

Receive Specifications The receive specifications of the DBS3900 WiMAX refer to the data in CTC coding mode, as listed in Table 6-1, Table 6-2, and Table 6-3.




Table 6-1 Receive specifications of the DBS3900 WiMAX (2.3 GHz)

Modulation Mode

Receive Sensitivity at the 5 MHz Bandwidth (Unit: dBm)


Wideband (100 MHz)

Narrow Band (≤ 30 MHz)

Wideband (100 MHz)


QPSK-1/2 -100 -99 -97 -96

QPSK-3/4 -97 -96 -94 -93

QAM16-1/2 -94.5 -93.5 -91.5 -90.5

QAM16-3/4 -90 -89 -87 -86


Modulation Mode



Wideband (194 MHz)


Wideband (194 MHz)


QPSK-1/2 -100 -99 -97 -96

QPSK-3/4 -97 -96 -94 -93

QAM16-1/2 -94.5 -93.5 -91.5 -90.5

QAM16-3/4 -90 -89 -87 -86


Modulation Mode




Wideband (200 MHz)


Wideband (200 MHz)


Wideband (200 MHz)


QPSK-1/2 -98.5 -97.5 -96 -95 -94.5 -93.5

QPSK-3/4 -95 -94 -93.6 -92.6 -91 -90




Modulation Mode




Wideband (200 MHz)


Wideband (200 MHz)


Wideband (200 MHz)


QAM16-1/2

-93 -92 -92.2 -91.2 -88.5 -87.5

QAM16-3/4

-88 -87 -86.6 -85.6 -85 -84

6.3 Engineering Specifications The engineering specifications of the DBS3900 WiMAX include dimensions, device weight, input power supply, and power consumption.

Dimensions and Weight Table 6-4 lists the dimensions and weight of the BBU3900 and RRU3702.

Table 6-4 Dimensions and weight of the BBU3900 and RRU3702

Component Dimensions (Width x Depth x Height)

Weight

BBU3900 442 mm (17.40 in.) x 310 mm (12.20 in.) x 86 mm (3.39 in.)

11 kg (24.26 lb) (full configuration)

RRU3702 356 mm (14.02 in.) x 120 mm (4.72 in.) x 480 mm (18.90 in.)

21 kg (46.31 lb)

Input Power Supply Table 6-5 lists the input power supply parameters of the BBU3900.

Table 6-5 Input power supply parameters of the BBU3900

Rated Voltage Parameter Value

-48 V DC Rated voltage -48 V DC

Permissible range -38.4 V DC to -57 V DC




Table 6-6 lists the input power supply parameters of the RRU3702.

Table 6-6 Input power supply parameters of the RRU3702

Rated Voltage Parameter Value

-48 V DC Rated voltage -48 V DC

Permissible range -36 V DC to -57 V DC

Power Consumption The power consumption of a fully configured BBU3900 does not exceed 200 W.

The typical power consumption of an RRU3702 does not exceed 230 W.

Table 6-7 lists the power consumption specifications in different configuration modes at the 2.3 GHz/2.5 GHz band.

Table 6-7 Power consumption specifications at the 2.3 GHz/2.5 GHz band

Configuration Type

Typical Power Consumption (Subframe Ratio: 29:18; Load: 50%; Unit: W)

Average Power Consumption (Subframe Ratio: 35:12; Load: 100%; Unit: W)

Peak Power Consumption (Unit: W)

O1/S1 2T2R 229 275 330

O2/S2 2T2R 229 275 330

S(1/1/1) 2T2R 412 530 670

S(1/1/1/1) 2T2R 537 680 850

S(2/2/2) 2T2R 472 590 730

O1/S1 4T4R 294 365 450

O2/S2 4T4R 294 365 450

S(1/1/1) 4T4R 661 875 1130

S(2/2/2) 4T4R 721 935 1190

Table 6-8 lists the power consumption specifications in different configuration modes at the 3.5 GHz band.




Table 6-8 Power consumption specifications at the 3.5 GHz band

Configuration Type

Typical Power Consumption (Subframe Ratio: 29:18; Load: 50%; Unit: W)

Average Power Consumption (Subframe Ratio: 35:12; Load: 100%; Unit: W)

Peak Power Consumption (Unit: W)

O1/S1 2T2R 220 263 314

O2/S2 2T2R 220 263 314

S(1/1/1) 2T2R 398 511 644

S(1/1/1/1) 2T2R 526 665 830

S(2/2/2) 2T2R 458 571 704

O1/S1 4T4R 288 358 440

O2/S2 4T4R 288 358 440

S(1/1/1) 4T4R 645 853 1100

S(2/2/2) 4T4R 705 913 1160

6.4 Surge Protection Specifications The ports on the DBS3900 WiMAX must meet specific surge protection requirements.

Table 6-9 lists the surge protection specifications of the ports on the DBS3900 WiMAX.

Table 6-9 Surge protection specifications

Port Name Surge Protection Specification

Impact Type

DC power port of the RRU Differential mode: 10 kA 8/20 μs impact current

Common mode: 15 kA

Antenna port (including the GPS port)

Differential mode: 8 kA 8/20 μs impact current

Common mode: 40 kA

Signal port (excluding the FE/GE electrical port)

Common mode: 250 A 8/20 μs impact current

Common mode: 250 A

Indoor FE/GE electrical port Differential mode: 500 V 1.2/50 μs surge voltage

Common mode: 4,000 V




Port Name Surge Protection Specification

Impact Type

Dry contact input circuit Differential mode: 250 A 8/20 μs impact current

Common mode: 500 A

6.5 Reliability Specifications Table 6-10 lists the reliability specifications of the DBS3900 WiMAX.

Table 6-10 Reliability specifications of the DBS3900 WiMAX

Item Specification

Availability 99.999%

Mean Time Between Failures (MTBF)

100000 h

Mean Time To Repair (MTTR) ≤ 1 hour (excluding the time needed for the engineers to arrive at the site) ≤ 3 hours (including the time needed for the engineers to arrive at the site)

6.6 Environmental Requirements 6.6.1 Requirements for the Operating Environment

The requirements for the operating environment of the DBS3900 WiMAX include the climatic, biological, air purity, and mechanical stress requirements.

Climatic Requirements Table 6-11 lists the climatic requirements for the operating environment of the DBS3900 WiMAX.

Table 6-11 Climatic requirements

Item Range

Temperature BBU3900 -20°C (-4°F) to +55°C (+131°F)

RRU3702 -40°C (-40°F) to +50°C (+122°F) (solar radiation not considered)




Item Range

-40°C (-40°F) to +45°C (+113°F) (solar radiation considered)

Temperature change rate

≤ 3°C/min

Relative humidity

BBU3900 5% to 95%

RRU3702 5% to 100%

Altitude -60 m (-196.85 ft) to +3,000 m (+9842.40 ft) (normal operating) ≥1,800 m (5905.44 ft) [The temperature drops by 1oC when the altitude increases by every 220 m (721.78 ft).]

Solar radiation

BBU3900 ≤ 700 W/m2 [ambient temperature: 45°C (113°F)]

RRU3702 ≤ 1,120 W/m2 [ambient temperature: 45°C (113°F)]

Thermal radiation

≤ 600 W/m2

Wind speed ≤ 67 m/s

Biological Requirements The operating environment of the DBS3900 WiMAX should meet the following biological requirements:

The environment is not conducive to the growth of microorganisms, such as fungi.

The equipment is protected from rodents, such as mice.

Air Purity Requirements The operating environment of the DBS3900 WiMAX should meet the following air purity requirements:

The air is free from explosive, electroconductive, magnetoconductive, and corrosive dust.

The concentration of chemically active substances must comply with the requirements listed in Table 6-12.

Table 6-12 Concentration requirements for chemically active substances

Chemically Active Substance Concentration (mg/m3)

SO2 ≤ 0.03

H2S ≤ 0.10





NH3 ≤ 1.00

Cl2 ≤ 0.10

HCl ≤ 0.10

HF ≤ 0.01

O3 ≤ 0.05

NOx ≤ 0.05

Mechanical Stress Requirements Table 6-13 lists the mechanical stress requirements for the operating environment of the DBS3900 WiMAX.

Table 6-13 Mechanical stress requirements

Item Sub-Item Range

Sinusoidal vibration

Offset ≤ 3.5 mm (0.14 in.)

-

Acceleration - ≤ 10.0 m/s2

Frequency range 5 Hz to 9 Hz 9 Hz to 200 Hz

Unsteady impact Impact response spectrum II

≤ 250 m/s2

Static payload 0

Note: The impact response spectrum refers to the maximum acceleration response curve generated by the equipment under specified impact excitation. Impact response spectrum II indicates that the duration of semi-sine impact response spectrum is 6 ms.

The static payload refers to the capability of the packed equipment to bear the weight from above in stipulated stack mode.

6.6.2 Requirements for the Transportation Environment The requirements for the transportation environment of the DBS3900 WiMAX include the climatic, waterproofing, biological, air purity, and mechanical stress requirements.

Climatic Requirements Table 6-14 lists the climatic requirements for the transportation environment of the DBS3900 WiMAX.





Item Range

Temperature -40°C (-40°F) to +70°C (+158°F)

Temperature change rate ≤ 3°C/min

Relative humidity 5% to 100%

Altitude -60 m (-196.85 ft) to +3,000 m (+9842.40 ft)

Solar radiation ≤ 1,120 W/m2

Thermal radiation ≤ 600 W/m2

Waterproofing Requirements The transportation environment of the DBS3900 WiMAX should meet the following waterproofing requirements:

The package should be intact. Appropriate measures should be taken to prevent rainwater from entering the

package. No water accumulates in the vehicle.

Biological Requirements The transportation environment of the DBS3900 WiMAX should meet the following biological requirements:



Air Purity Requirements The transportation environment of the DBS3900 WiMAX should meet the following air purity requirements:


The concentration of mechanically active substances should comply with the requirements listed in Table 6-15.

Table 6-15 Concentration requirements for mechanically active substances

Mechanically Active Substance

Unit Concentration

Suspended dust mg/m3 ≤ 35

Falling dust mg/(m2h) ≤ 0.2





Unit Concentration

Grit mg/m3 ≤ 30

Note: The diameter of a suspended dust particle is not greater than 75 µm. The diameter of a falling dust particle is not smaller than 75 µm and not greater than 150 µm. The diameter of a piece of grit is not smaller than 150 µm and not greater than 1000 µm.


Table 6-16 Concentration requirements for chemically active substances


SO2 ≤ 0.30

H2S ≤ 0.10

NO2 ≤ 0.05

NH3 ≤ 1.00

Cl2 ≤ 0.10

HCl ≤ 0.10

HF ≤ 0.01

O3 ≤ 0.05

Mechanical Stress Requirements Table 6-17 lists the mechanical stress requirements for the transportation environment of the DBS3900 WiMAX.


Item Sub-Item Range


Offset ≤ 3.5 mm (0.14 in.)

- -

Acceleration - ≤ 10.0 m/s2 ≤ 15.0 m/s2

Frequency range

2 Hz to 9 Hz 9 Hz to 200 Hz

200 Hz to 500 Hz




Item Sub-Item Range

Random vibration Acceleration spectral density

1 m2/s3 0.3 m2/s3

Frequency range

10 Hz to 200 Hz

200 Hz to 2,000 Hz

Unsteady impact Impact response spectrum II

≤ 250 m/s2

Static payload ≤ 10 kPa

Falling Falling Height: 1 m (3.28 ft)



The protection performance of the RRU should meet the IP65 requirements.

6.6.3 Requirements for the Storage Environment The requirements for the storage environment of the DBS3900 WiMAX include the climatic, waterproofing, biological, air purity, and mechanical stress requirements.

Climatic Requirements Table 6-18 lists the climatic requirements for the storage environment of the DBS3900 WiMAX.


Item Range

Temperature -40°C (-40°F) to +70°C (+158°F)

Temperature change rate ≤ 1°C/min

Relative humidity 5% to 100%

Altitude -60 m (-196.85 ft) to +3,000 m (+9842.40 ft)

Solar radiation ≤ 1,120 W/m2

Thermal radiation ≤ 600 W/m2

Wind speed ≤ 50 m/s




Waterproofing Requirements The storage environment of the DBS3900 WiMAX should meet specific waterproofing requirements.

In general, equipment should be placed indoors. The indoor storage environment should meet the following waterproofing requirements:

There should not be water accumulated on the ground or likely to damage the package of the equipment.

The equipment should be kept away from water sources such as hydrants and heating devices.

If the equipment needs to be placed outdoors, the outdoor storage environment should meet the following waterproofing requirements:

The package should be intact. Appropriate waterproofing measures should be taken to prevent rainwater from

entering the package. There should not be water accumulated on the ground or likely to enter the

package. The package should not be directly exposed to sunlight.

Biological Requirements The storage environment of the DBS3900 WiMAX should meet the following biological requirements:



Air Purity Requirements The storage environment of the DBS3900 WiMAX should meet the following air purity requirements:


The concentration of mechanically active substances should comply with the requirements listed in Table 6-19.

Table 6-19 Requirements for mechanically active substances


Unit Concentration

Suspended dust mg/m3 ≤ 5.00

Falling dust mg/(m2h) ≤ 500

Grit mg/m3 ≤ 300





Unit Concentration

Note: The diameter of a suspended dust particle is not greater than 75 µm. The diameter of a falling dust particle is not smaller than 75 µm and not greater than 150 µm.

The diameter of a piece of grit is not smaller than 150 µm and not greater than 1000 µm.


Table 6-20 Requirements for chemically active substances


SO2 ≤ 0.30

H2S ≤ 0.10

NO2 ≤ 0.05

NH3 ≤ 1.00

Cl2 ≤ 0.10

HCl ≤ 0.10

HF ≤ 0.01

O3 ≤ 0.05

Mechanical Stress Requirements Table 6-21 lists the mechanical stress requirements for the storage environment of the DBS3900 WiMAX.


Item Sub-Item Range


Offset ≤ 1.5 mm (0.06 in.)

-

Acceleration - ≤ 5.0 m/s2

Frequency range 2 Hz to 9 Hz 9 Hz to 200 Hz

Unsteady impact

Impact response spectrum II

≤ 250 m/s2

Static payload ≤ 5 kPa




Item Sub-Item Range



6.7 Compliance Standards of the DBS3900 WiMAX This section describes the compliance standards of the DBS3900 WiMAX, including electro magnetic compatibility (EMC) standards, safety standards, grounding and surge protection standards, and related protocols.

WiMAX Standards The DBS3900 WiMAX complies with the WiMAX standards listed in Table 6-22.

Table 6-22 WiMAX standards

Standard Description Remarks

IEEE 802.16 IEEE Standard for Local and metropolitan area networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems

The DBS3900 WiMAX complies with IEEE 802.16 Cor2D3 standards and the latest system requirements document (SRD). The physical layer complies with the OFDMA specifications.

NWG protocols

WiMAX Forum Network Architecture, Stage 2 / Stage 3

The DBS3900 WiMAX complies with Release 1 Version 1.2.0.

EMC Standards The DBS3900 WiMAX complies with the EMC standards.

In China, Europe, Japan, Australia, and New Zealand, it complies with the following standards:

CISPR 22: limits and methods of measurement of radio disturbance characteristics of information"

IEC/EN 61000-4-2: Electromagnetic compatibility(EMC) Part 2: Testing and measurement techniques Section 2:Electrostatic discharge immunity test Basic EMC Publication




IEC/EN 61000-4-3: Electromagnetic compatibility; Part 3: Testing and measurement techniques Section 3 radio frequency electromagnetic fields; immunity test

IEC/EN 61000-4-4: Electromagnetic compatibility(EMC) Part 4: Testing and measurement techniques Section 4:Electrical fast transient/burst immunity test Basic EMC publication

IEC/EN 61000-4-5: Electromagnetic compatibility(EMC) Part 5: Testing and measurement techniques Section 5:Sruge immunity test

IEC/EN61000-4-6: Electromagnetic compatibility: Part 6: Testing and measurement techniques: Section 6 conducted disturbances induced by radio-frequency fields immunity test

IEC/EN6000-4-11: Electromagnetic compatibility: Part 11: Testing and measurement techniques Section 11:Voltage dips, short interruptions and voltage variations immunity

IEC/EN 61000-4-29: Electromagnetic compatibility: Part 29: Testing and measurement techniques and voltage variations on d.c. Input power port immunity test

IEC/EN 61000-3-2: Electromagnetic compatibility: Part 3: limits Section2: limits for harmonic current emissions (equipment input current less than or equal to 16A per phase)

IEC/EN 61000-3-3: Electromagnetic compatibility: Part 3: limits Section3: limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current less than or equal to 16A

EN 300 386 V1.3.3: Electromagnetic compatibility and Radio spectrum Matters (ERM);Telecommunication network equipment; ElectroMagnetic Compatibility (EMC) requirements

ETSI EN 301 489-1 V1.5.1: Electromagnetic compatibility and Radio spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements

ETSI EN 301 489-4 V1.2.1: Electromagnetic compatibility and Radio spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 4: Specific conditions for fixed radio links and ancillary equipment and services

ITU-T SM 329-10: SPURIOUS EMISSIONS (Question ITU-R 55/1) ETSI EN 301 390: Fixed Radio Systems; Point-to-point and Multipoint Systems;

Spurious emissions and receiver immunity limits at equipment/antenna port of Digital Fixed Radio Systems

GB9254-1998: RF disturbance limit and testing method for IT devices YD1138-2001: EMC requirements and measurement method for the fixed

wireless links and other assisting devices

In North America, it complies with the following standards:

FCC Part 2: Federal Communication Committee - part 2 - Frequency Allocation, Radio Treaty Matters, and General Rules

FCC Part 15: Federal Communication Committee - part 15 - radio frequency device




Safety Standards The DBS3900 WiMAX complies with the following safety standards:

IEC/EN/UL60950-1 information technology equipment - safety -part 1: General Requirements

IEC/EN60825-1 safety laser product products - part 1: Equipment classification, requirement and user's guide

IEC/EN60825-2 safety laser product products - part 2: safety of optical fiber communication systems

GR1089 Electromagnetic Compatibility and Electrical Safety - Generic Criteria for Network Telecommunications Equipment

IEC/EN 60215 safety requirement for radio transmitting equipment

Environmental Standards

Standard Description

ETS 300 019-1-1 Class 1.2 Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Storage.

ETS 300 019-1-2 Class 2.3 Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Transportation.

ETS 300 019-1-3 Class 3.2 Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Stationary use at weatherprotected locations.

ETS 300 019-1-4 Class 4.1 Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Stationary use at non-weatherprotected locations.

ETS 300 019-1-4 Class 4.1E Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Stationary use at non-weatherprotected locations - extended.

ETS300753 Acoustic noise emitted by telecommunications equipment

GR-63 Network equipment - building system (NEBS) requirements: physical protection

Grounding and Surge Protection Standards


IEC 61024-1(1993) Protection of structures against lightning





IEC 61312-1(1995) Protection Against Lightning Electromagnetic Impulse Part I : General Principles

IEC 61000-4-5(1995) Electromagnetic compatibility (EMC)- Part 4: Testing and measurement techniques - Section 5: Surge immunity test

ITU-T K.11(1993) Principles of Protection Against Overvoltage and Overcurrents

ITU-T K.27(1996) Bonding Configurations and Earthing Inside a Telecommunication Building

ITU-T K.41(1998) Resistibility of internal interfaces of telecommunication centres to surge overvoltages

YDJ 26-89 Temporary technical specifications for the grounding design of a telecommunication office

GB 50057-94 Design specifications about the surge protection for buildings

YD/T5098-2001 Design specifications about the overvoltage protection engineering of the telecommunications office

YD5068-98 Design specifications about the surge protection and grounding of the mobile telecommunications BS

Power Supply Standards


IEC300 132-1 -

IEC300 132-2 -

Noise Standards

Standard

RRU Natural cooling and no noise

BBU GR-63-CORE ISSUE3 78dBA @ 27°C ETS 300 753 telecommunications room 72dBA @ 23°C




7 Acronyms and Abbreviations

Acronym and Abbreviation Expansion

AAA Authentication, Authorization, and Accounting

AMC Adaptive Modulation And Coding

APM Advanced Power Module

ARQ Automatic Repeat Request

ASN Access Service Network

ASN-GW Access Service Network-Gateway

ASP Access Service Provider

BBU Base Band Unit

BF Beamforming

BS Base Station

CAPEX Capital Expenditure

CDD Cyclic Delay Diversity

CMAC Cipher-Based Message Authentication Code

CPE Customer Premise Equipment

CPRI Common Public Radio Interface

CSN Connectivity Service Network

CSM Collaborate Spatial Multiplex

DHCP Dynamic Host Configuration Protocol

FE Fast Ethernet

FEC Forward Error Correction




Acronym and Abbreviation Expansion

FFR Fractional Frequency Reuse

FTP File Transfer Protocol

GE Giga-Bit Ethernet

GPS Global Positioning System

HA Home Agent

HARQ Hybrid Automatic Repeat Request

IRC Interference Rejection Combining

MCS Modulation and Coding Scheme

MML Man Machine Language

MIMO Multiple Input Multiple Output

MRC Maximum Ratio Combining

MS Mobile Station

OFDMA Orthogonal Frequency Division Multiple Access

OMB Outdoor Mini Box

PUSC Partial Usage Subchannel

RRU Remote Radio Unit

SS Subscriber Station

TDD Time division duplex

WiMAX World Interoperability for Microwave Access

Documents

DBS3900 WiMAX V300R002 Product Description V3[1]