137332842-huawei-bts3606a-v200r003

System Description of BTS3606A

Huawei Technologies Co., Ltd.

SYSTEM DESCRIPTION OF BTS3606A

HUAWEI CONFIDENTIAL I

Table of Contents

Chapter 1 Introduction to BTS3606A ............................................................................................1 1.1 Comparison Between CDMA2000 1X and 1xEV-DO...........................................................1 1.2 Huawei CDMA2000 1X/1xEV-DO Mobile Network Solution ................................................2

1.2.1 Introduction to BSS/AN .............................................................................................2 1.2.2 Introduction to CN .....................................................................................................4

1.3 Role and Application of the BTS3606A................................................................................4 1.3.1 Role in the Network...................................................................................................5 1.3.2 Application of the BTS3606A ....................................................................................5

Chapter 2 Key Benefits...................................................................................................................6 2.1 Technical Features..............................................................................................................6 2.2 Large Coverage...................................................................................................................7

2.2.1 Receiver Sensitivity...................................................................................................7 2.2.2 Transmit Power (Measured at RF Port).....................................................................7 2.2.3 Cascading with the ODU3601C ................................................................................8

2.3 Flexible Networking Mode ...................................................................................................8 2.3.1 Networking Interfaces ...............................................................................................8 2.3.2 Networking Modes ....................................................................................................8 2.3.3 Clock Sources...........................................................................................................8

2.4 Convenient Operation and Maintenance .............................................................................9 2.4.1 System Status Monitoring .........................................................................................9 2.4.2 Data Configuration ....................................................................................................9 2.4.3 Alarm Processing......................................................................................................9 2.4.4 Security Management ...............................................................................................9 2.4.5 Test Function ............................................................................................................9 2.4.6 Site Monitoring ........................................................................................................10 2.4.7 Upgrade ..................................................................................................................10 2.4.8 Operation on the Equipment ...................................................................................10 2.4.9 Auto Restart ............................................................................................................10 2.4.10 Reverse Maintenance ...........................................................................................10 2.4.11 Interference Detection...........................................................................................10

2.5 Strong Environment Adaptability .......................................................................................10 2.5.1 Completely-Enclosed Integrated Structure..............................................................11 2.5.2 Wide Operating Temperature Range ......................................................................11 2.5.3 Robust Power Distribution Function ........................................................................11 2.5.4 Complete Lightning Protection and Monitoring Function .........................................12

2.6 Easy Upgrade and Expansion ...........................................................................................12 2.6.1 High Compatibility ...................................................................................................12


HUAWEI CONFIDENTIAL II

2.6.2 Flexible Configuration .............................................................................................12 2.6.3 Smooth Expansion..................................................................................................12

2.7 Serial Products for Seamless Coverage............................................................................12

Chapter 3 System Architecture....................................................................................................14 3.1 Outlook and Configuration.................................................................................................14

3.1.1 Cabinet Physical Features ......................................................................................14 3.1.2 Base Physical Features ..........................................................................................15

3.2 Cabinet Configuration........................................................................................................16 3.3 Functional Architecture......................................................................................................17

3.3.1 Baseband Subsystem .............................................................................................18 3.3.2 RF Subsystem ........................................................................................................19 3.3.3 Antenna Subsystem................................................................................................19 3.3.4 Power and Environment Monitoring Subsystem......................................................19

3.4 Physical Interfaces ............................................................................................................20

Chapter 4 Services and Functions ..............................................................................................22 4.1 Power Control and Rate Control........................................................................................22

4.1.1 Forward Power Control ...........................................................................................22 4.1.2 Reverse Power Control ...........................................................................................23 4.1.3 Rate Control............................................................................................................24

4.2 Handoff..............................................................................................................................24 4.2.1 Soft Handoff ............................................................................................................24 4.2.2 Softer Handoff.........................................................................................................24 4.2.3 Virtual Soft Handoff .................................................................................................25 4.2.4 Hard Handoff...........................................................................................................25 4.2.5 Handoff Between CDMA2000 1xEV-DO and CDMA2000 1X Systems ...................25

4.3 Radio Configuration...........................................................................................................25 4.4 Channel Configuration.......................................................................................................26

4.4.1 CDMA2000 1X Channels ........................................................................................26 4.4.2 CDMA2000 1xEV-DO Channels .............................................................................27

4.5 DO+ Features....................................................................................................................29 4.5.1 BCMCS...................................................................................................................29 4.5.2 Enhanced Proprietary QoS .....................................................................................29

4.6 1X Rel A Features .............................................................................................................29 4.6.1 Forward Power Control ...........................................................................................30 4.6.2 Cell Broadcast Short Message................................................................................30

4.7 Multi-Channel Function......................................................................................................30 4.8 Receiving Diversity............................................................................................................30 4.9 Cell Breathing....................................................................................................................30

Chapter 5 Reliability .....................................................................................................................32 5.1 System Reliability ..............................................................................................................32

5.1.1 De-rating Design .....................................................................................................32


HUAWEI CONFIDENTIAL III

5.1.2 Quality Control of Components ...............................................................................32 5.1.3 Thermal Design.......................................................................................................32 5.1.4 EMC Design............................................................................................................32 5.1.5 Threshold for Closing CHPA/CMPA........................................................................33 5.1.6 Redundancy Design................................................................................................33 5.1.7 Reliability Measures for Input Power.......................................................................33 5.1.8 Maintainability Design .............................................................................................33 5.1.9 Fault Monitoring and Handling ................................................................................33

5.2 Hardware Reliability ..........................................................................................................34 5.2.1 Protection Against Wrong Insertion of Boards.........................................................34 5.2.2 BCKM Active-Standby Switchover ..........................................................................34 5.2.3 BCIM Resistance Query..........................................................................................34 5.2.4 N+1 Redundancy for Baseband Fans .....................................................................34 5.2.5 Abis Interface Link Backup......................................................................................34 5.2.6 CE Pool Design for CCPMs ....................................................................................34 5.2.7 Status Monitoring and Alarm Report .......................................................................35 5.2.8 Distributed Power Supply........................................................................................35

5.3 Software Reliability............................................................................................................35 5.3.1 Periodic Check on Key Resources..........................................................................35 5.3.2 Process Monitoring .................................................................................................35 5.3.3 Data Check .............................................................................................................35 5.3.4 Fault Isolation..........................................................................................................35 5.3.5 Black Box Function .................................................................................................36 5.3.6 Self-Test .................................................................................................................36 5.3.7 Optimization of Standing Wave Alarm Detection.....................................................36 5.3.8 Upgrade Reversibility ..............................................................................................36 5.3.9 Log Function ...........................................................................................................36

Chapter 6 Operation and Maintenance........................................................................................37 6.1 Structure of the O&M System............................................................................................37

6.1.1 Structure of Local O&M System..............................................................................37 6.1.2 Structure of M2000 System.....................................................................................38

6.2 O&M Functions..................................................................................................................39 6.2.1 Security Management .............................................................................................39 6.2.2 Alarm Management.................................................................................................39 6.2.3 Loading Management .............................................................................................40 6.2.4 Configuration Management.....................................................................................40 6.2.5 Equipment Management .........................................................................................40 6.2.6 Test Management ...................................................................................................40 6.2.7 Tracing Management ..............................................................................................41

Chapter 7 Technical Specifications.............................................................................................42 7.1 Engineering Specifications ................................................................................................42


HUAWEI CONFIDENTIAL IV

7.2 Capacity Specifications .....................................................................................................44 7.2.1 Capacity in CDMA2000 1X Network .......................................................................44 7.2.2 Capacity in 1xEV-DO Network ................................................................................44

7.3 Trunking Call Specifications ..............................................................................................44 7.3.1 Single Call Specifications........................................................................................45 7.3.2 Group Call and Broadcast Call Specifications.........................................................45

7.4 Transmitter and Receiver Specifications ...........................................................................45 7.4.1 Transmitter and Receiver Specifications in Band Class 0 .......................................45 7.4.2 Transmitter and Receiver Specifications in Band Class 1 .......................................46 7.4.3 Transmitter and Receiver Specifications in Band Class 5 .......................................47 7.4.4 Transmitter and Receiver Specifications in Band Class 10 .....................................47

7.5 ODU3601C Cascading Specifications ...............................................................................48 7.6 Transmission Link BER Threshold Specifications..............................................................49

Chapter 8 Standard Compliance..................................................................................................50 8.1 General Technical Standards ............................................................................................50 8.2 Um Interface Standards.....................................................................................................50

8.2.1 Physical Layer.........................................................................................................50 8.2.2 MAC Layer..............................................................................................................50 8.2.3 Service Capability ...................................................................................................50

8.3 Abis Interface Standards ...................................................................................................51 8.3.1 Physical Layer.........................................................................................................51 8.3.2 ATM Layer ..............................................................................................................51 8.3.3 ATM Adaptation Layer ............................................................................................51 8.3.4 TCP/IP ....................................................................................................................51 8.3.5 Abis Interface High-Layer Protocol..........................................................................52 8.3.6 Huawei Self-defined Standard.................................................................................52

8.4 Lightning Protection Standards..........................................................................................52 8.5 Safety Standards...............................................................................................................52 8.6 EMC Standards .................................................................................................................53 8.7 Environment Standards .....................................................................................................54

Chapter 9 Acronyms and Abbreviations.....................................................................................56


HUAWEI CONFIDENTIAL 1

Chapter 1 Introduction to BTS3606A

As a main stream of the 2G system, the code division multiple access 1 carrier (CDMA2000 1X) technology, advocated by the 3rd Generation Partnership Project 2 (3GPP2), is now widely used for commercial purposes.

CDMA2000 1xEV-DO, a data optimized evolution of CDMA2000 1X, provides a peak data rate of 2.4 Mbit/s in forward links and 153.6 kbit/s in reverse links. It delivers diversified data services such as multimedia gaming, multimedia news, real-time video traffic updates, video phone, video conference, real-time security information, and location-based services.

The new CDMA2000 1xEV-DO standard, DO+, provisions broadcast multicast service (BCMCS) and enhanced proprietary quality of service (QoS).

This chapter compares the CDMA2000 1X and CDMA2000 1xEV-DO, and introduces the Huawei CDMA2000 1X/1xEV-DO network solution and the role of the BTS3606A in this solution.

1.1 Comparison Between CDMA2000 1X and 1xEV-DO

The BTS3606A supports both CDMA2000 1X and CDMA2000 1xEV-DO. Table 1-1 lists the comparison between the two technologies.

Table 1-1 Comparison between CDMA2000 1X and CDMA2000 1xEV-DO

Item CDMA2000 1X CDMA2000 1xEV-DO

Peak data rate

Forward (RC3): 153.6 kbit/s Reverse (RC3): 153.6 kbit/s

Forward: 2.4 Mbit/s Reverse: 153.6 kbit/s

Code Convolutional code and Turbo code Turbo code

Modulation

Forward: Quadrature phase shift keying (QPSK) Reverse: Hybrid phase shift keying (HPSK)

Forward: QPSK, 8-phase shift keying (8-PSK) and 16-quadrature amplitude modulation (16-QAM) Reverse: HPSK

Handoff

Forward: Soft handoff and hard handoff Reverse: Soft handoff and hard handoff

Forward: Virtual soft handoff Reverse: Soft handoff

Rate/power control

Forward: Power control Reverse: Power control

Forward: Rate control Reverse: Power control



Item CDMA2000 1X CDMA2000 1xEV-DO

Channel multiplex mode

Forward: Code division multiplex (CDM) Reverse: Code division multiplex

Forward: Time division multiplex (TDM) and CDM Reverse: CDM

1.2 Huawei CDMA2000 1X/1xEV-DO Mobile Network Solution

The Huawei CDMA2000 1X/1xEV-DO mobile network comprises:

Base station subsystem/access network (BSS/AN) Core network (CN)

The operation and maintenance of the system is implemented through an integrated mobile network management system.

Figure 1-1 shows the structure of the Huawei CDMA2000 1X/1xEV-DO network solution, focusing on the BSS/AN.

BSC/PCF外部网络CBSS

M2000移动网管系统

CNSS

BSC/PCF

BTS

BTS

Packet Core Internet

PLMN

PSTNISDN

MS/AT

MS/AT

Circuit Core

MS:Mobile station BTS:Base transceiver station PCF:Packet control function CBSS:CDMA base station subsystem PSTN:Public service telephone network IMS:IP multimedia subsystem PCF:Packet control function PLMN:Public land mobile network CBSS:CDMA base station subsystem BTS:Base transceiver station

Figure 1-1 Structure of Huawei CDMA2000 1X/1xEV-DO hybrid network

1.2.1 Introduction to BSS/AN

The following introduces two terms BSS and AN:

The BSS is a term applicable to CDMA2000 1X technology.



It consists of one base station controller (BSC) and one or more base transceiver stations (BTSs). The BSC usually integrates with the packet control function (PCF).

The ODU3601C, a soft BTS, is also a product in the Huawei's BSS family.

The AN is a term applicable to CDMA2000 1xEV-DO technology.

It consists of CDMA2000 1xEV-DO BTSs and a BSC (integrated with the PCF).

I. BTS

The BTS transmits and receives radio signals to enable the communication between the radio network system and the mobile station/access terminal (MS/AT).

Huawei provides a series of CDMA BTS products for radio coverage in different situations, including:

BTS3606A

The outdoor BTS3606A supports both CDMA2000 1X and CDMA2000 1xEV-DO standards. The maximum capacity of a single BTS3606A cabinet is six sector carriers. By using multi-channel modules, a single BTS3606A cabinet can provide a maximum capacity of 18 sector carriers.

BTS3606

The indoor BTS3606 supports both CDMA2000 1X and CDMA2000 1xEV-DO standards. The maximum capacity of a single BTS3606 cabinet is six sector carriers. By using multi-channel modules, a single BTS3606A cabinet can provide a maximum capacity of 18 sector carriers.

BTS3601C

The BTS3601C is an outdoor one-carrier BTS supporting the CDMA2000 1X standard.

ODU3601C

The ODU3601C is an outdoor one-carrier soft BTS supporting the CDMA2000 1X standard. It shares baseband processing resources with its master BTS to realize the transmission and reception of radio signals.

II. BSC/PCF

The BSC performs the following functions:

BTS control and management Call connection and disconnection Mobility management Power control Radio resources management



Provision of stable and reliable radio connections for upper-layer services through soft/hard handoffs

The PCF manages radio-packet (R-P) connections. As radio resources are limited, they are released when subscribers are not sending or receiving any data. The peer-peer protocol (PPP) connections, however, is maintained.

The PCF shields radio mobility from upper-layer services through handoff functions.

III. MS/AT

The MS is a mobile subscriber device used to originate and receive calls. It communicates with the BSS.

The AT integrates a radio modem and a data interface to enable the access to a packet data network through the AN.

The AT is similar to a mobile station in a CDMA2000 1X system. It can be a computer (for example, a laptop) or a data device such as personal digital assistant (PDA).

1.2.2 Introduction to CN

The CN comprises the packet domain network and the circuit domain network.

I. Packet Domain Network

The packet domain network includes the following elements:

Packet data serving node (PDSN) Mobile Internet protocol home agent (MIP HA) Authorization, authentication and accounting (AAA) Access Network AAA (AN AAA)

They connect to and communicate with the Internet.

II. Circuit Domain Network

The circuit domain network includes the following elements:

Mobile switching center (MSC) Home location register (HLR)

These network elements connect to and communicate with the public land mobile network (PLMN), public switched telephone network (PSTN), and integrated services digital network (ISDN).

1.3 Role and Application of the BTS3606A

The following describes the role of the BTS3606A in the CDMA2000 1X/1xEV-DO network and its application.



1.3.1 Role in the Network

The BTS3606A is located between the BSC and MS/AT in the network. Under the control of the BSC, it serves one cell or several logical sectors.

Connecting with the BSC through the Abis interface, the BTS3606A helps the BSC manage radio resources, radio parameters and interfaces. It also implements radio transmission over the Um interface, as well as associated control functions.

1.3.2 Application of the BTS3606A

The BTS3606A is a heat exchanger outdoor BTS that adapts to complex natural and electromagnetic environment.

The BTS3606A features low cost, fast deployment, and strong environment adaptability. It is ideal to realize seamless radio coverage.

The BTS3606A is suitable for the areas with medium or high traffic density.

Compatible with CDMA2000 1X and 1xEV-DO, the BTS3606A can operate in the following modes:

CDAM2000 1X mode CDAM2000 1xEV-DO mode CDMA2000 1X/1xEV-DO hybrid mode



Chapter 2 Key Benefits

The BTS3606A is designed to satisfy customers' requirements for services, capacity, coverage, transmission, power supply, installation, and maintenance.

This chapter introduces the key benefits of the BTS3606A in terms of its technical performance, coverage, networking, operation and maintenance (O&M), and capacity expansion.

2.1 Technical Features

The BTS3606A boasts the following technical features:

Support both the CDMA2000 1X and 1xEV-DO standards. Support smooth upgrade to CDMA2000 1xEV-DV (evolution – data and voice)

based on advanced system architecture. Support CDMA2000 1X/1xEV-DO hybrid networking. The ratio of CDMA2000 1X

carriers to CDMA2000 1xEV-DO carriers is flexible. Allow the co-existence of single-channel and multi-channel transceiver modules

in a same cabinet. Support high-power coverage and large-capacity coverage using carriers of

different frequencies for a single sector. Adopt resource pool design to improve hardware resources utilization and

system's error tolerance capability. Adopt digital intermediate frequency (IF) technology to improve system

availability. Adopt intelligent fan control to increase the service life of fans and reduce the

noise. Support anti-interference through in-band adaptive wave filtering (applicable to

single-channel modules). Support 450 MHz, 800 MHz, and 1900 MHz bands. Support cascading with the ODU3601C to flexibly extend the coverage of radio

network. Support forward and reverse load control and access channel load control to

ensure the system capacity and the service quality. Support various service negotiations, including active negotiations, passive

negotiations, and non-negotiations. Support push to talk (PTT) functions. Support power combination in the single-channel mode. Support the mixed insertion of different-band carriers in the same cabinet. Support IP transmission over the Abis interface.



Support microwave transmission.

Note:

The BTS3606A supports CDMA2000 1X and 1xEV-DO by using different types of channel processing boards such as CCPMs/CECMs.

The channel element (CE) pool is employed in the CDMA2000 1X, but not in the CDMA2000 1xEV-DO.

The BTS3606A supports single-channel and multi-channel configurations by using different types of RF modules such as CTRMs/CMTRs and CHPAs/CMPAs.

2.2 Large Coverage

The BTS3606A can cover a wide area thanks to its excellent receiver and transmitter performance. Its coverage area can be further extended by cascading the Huawei ODU3601Cs.

2.2.1 Receiver Sensitivity

The main/diversity receiving technology is employed to optimize the receiving performance. In RC3, the receiver sensitivity of the BTS3606A is better than:

–127 dBm when equipped with single-channel modules –126 dBm when equipped with multi-channel modules

2.2.2 Transmit Power (Measured at RF Port)

The following lists the transmit power measured at the radio frequency (RF) port of the cabinet. For details, see section 7.4 “Transmitter and Receiver Specifications”.

I. Single-Channel Module Configuration

When the BTS3606A operates at the 450 MHz, 800 MHz, or 1900 MHz band, the maximum average transmit power per carrier is 20 W.

II. Multi-Channel Module Configuration

When the BTS3606A operates at the 450 MHz or 800 MHz band, the maximum average transmit power per carrier is 60 W.

When the BTS3606A operates at the 1900 MHz band, the maximum average transmit power per carrier is 40 W.

For details, see 7.5 “Transmitter and Receiver Specifications”.



2.2.3 Cascading with the ODU3601C

The BTS3606A can cascade one or more ODU3601Cs using optical fibers.

The BTS3606A can provide a maximum of 12 optical interfaces. In a CDMA2000 1X or CDMA2000 1xEV-DO network, each optical interface can connect three levels of ODU3601Cs to extend the radio coverage.

2.3 Flexible Networking Mode

The BTS3606A enables flexible networking and supports various networking modes by providing various interfaces and clock resources.

2.3.1 Networking Interfaces

The BTS3606A supports the networking through:

E1 or T1 links Inverse multiplexing on ATM (IMA), user network interface (UNI), fractional

asynchronous transfer mode (ATM), and fractional IMA IP transmission based on the E1 and fast Ethernet (FE)

The Abis interface supports link backup function, which significantly enhances system availability.

2.3.2 Networking Modes

The BTS3606A supports chain, star, tree, fractional ATM, IP networking, and cascading ODU networking modes.

The BTS3606A can share the transmission network with GSM BTSs. In addition, it can provide the GSM BTSs with transmission channels on the Abis interface in fractional ATM mode.

2.3.3 Clock Sources

The BTS3606A supports the following clock sources to adapt to various networking conditions:

Global positioning system (GPS) clock Global navigation satellite system (GLONASS) clock Other external clock sources

Thus, it can adapt to various networking situations.

With a high precision clock module (HPCM) equipped, the BTS3606A can keep clock synchronization for 24 hours after the external clock source signal is lost.



2.4 Convenient Operation and Maintenance

Operation and maintenance of the BTS3606A is implemented through the local maintenance terminal (LMT) and the iManager M2000 mobile network management system.

The following describes the maintenance functions.

2.4.1 System Status Monitoring

This function can show users the system operation and resource status, the configuration and status of the local cell and logical cells.

2.4.2 Data Configuration

The BTS3606A supports dynamic data configuration. The configured data takes effect without resetting the BTS.

It also supports data batch processing. You can configure the common data for multiple network elements at a time.

Data backup function is also available.

2.4.3 Alarm Processing

The alarm processing function includes:

Alarm collection Alarm clearing Alarm querying Alarm shielding Alarm filtering

2.4.4 Security Management

The security management function includes:

User login authentication Command authority restriction Confirmation of dangerous operation User group management Timeout locking

2.4.5 Test Function

The BTS3606A supports both offline and online tests. The tests include:

Board loopback test Self-test



Trunk loopback test

2.4.6 Site Monitoring

A data transmission channel is available for the monitoring device in the equipment room to enable attendance-free operation and centralized monitoring of the BTS3606A.

2.4.7 Upgrade

Users can upgrade the system remotely. The system can revert to the original version if the upgrade fails.

The BTS3606A provides the auto loading function. When a board needs to be replaced, if the software versions of this board and the new board are different, the software of the new board can be upgraded automatically through the auto loading function.

2.4.8 Operation on the Equipment

The BTS3606A supports front operation, and online insertion and removal of baseband boards. This facilitates the maintenance, upgrade, and expansion of the system.

2.4.9 Auto Restart

When the BTS3606A is out of service owing to power failure or transmission failure, it can restart automatically right after the faults are cleared.

2.4.10 Reverse Maintenance

With the reverse maintenance function, users can log in to the back administration module (BAM) from the LMT through the Ethernet port on the BCKM to perform operation, maintenance, and management over the whole BSS.

2.4.11 Interference Detection

The BTS3606A supports interference detection. If the frame error rate (FER) is high, the system automatically records the received signal strength indicator (RSSI) and traffic volume. It determines whether there is interference based on the record.

2.5 Strong Environment Adaptability

The BTS3606A features excellent protection performance against wind, sand, rain, sun shine, and burglar.



2.5.1 Completely-Enclosed Integrated Structure

The water-proof and dust-proof performance of the BTS3612A satisfies IP55 requirements. The protection performance against moisture, mould, and smoke damage reaches Class 1.

Note:

For details about the IP55, see GB4208: Enclosure Protection Level (IP code) or IEC 60529: Degrees of protection provided by enclosure (IP code).

2.5.2 Wide Operating Temperature Range

The BTS3606A is equipped with a temperature control system.

The operating temperature of the BTS3606A with heat exchanger is from –40°C to +45°C (–40°F to 113°F).

In a high-temperature environment, the BTS3606A uses its temperature control system to dissipate heat. In a low-temperature environment, it activates the built-in heater to ensure normal temperature.

2.5.3 Robust Power Distribution Function

The BTS3606A supports single-phase or three-phase 220 V AC power inputs. Supported voltage range is from 200 V to 240 V and frequency from 45 Hz to 60 Hz. It provides overvoltage protection when the voltage reaches 290 V.

The system is also compatible with two-phase 110 V AC power input (phase difference: 180°). Supported voltage range is from 95 V to 135 V and frequency from 45 Hz to 65 Hz. It provides undervoltage protection when the voltage reaches 85 V.

Built-in batteries (two 12 V/100 Ah) or battery cabinet is available to ensure the normal operation of the system for a period of time in case of AC power failure.

The hierarchical power supply function of the BTS3606A ensures the transmission function of lower-level BTSs in case of mains failure.

BTS3606A can be fully configured with four 12 V/100 Ah batteries, supporting four hours power supply.

Built-in transmission power (+24 V–48 V) is available to provide the power supply for the transmission equipment with 250 W at most.



2.5.4 Complete Lightning Protection and Monitoring Function

The BTS3606A is equipped with reliable lightning protection facilities such as the built-in lightning protection board and external lightning protection box.

It also provides a powerful environment monitoring system to implement remote monitoring.

2.6 Easy Upgrade and Expansion

Thanks to its high compatibility, flexible configuration, and modular structure, the BTS3606A can be easily upgraded and expanded to meet different requirements.

2.6.1 High Compatibility

The BTS3606A supports CDMA2000 1X and 1xEV-DO (DO+) and smooth evolution to 1xEV-DV.

By replacing the CCPMs with CECMs and upgrading the software, the BTS3606A in a CDMA2000 1X network can be upgraded to support CDMA2000 1xEV-DO.

2.6.2 Flexible Configuration

The BTS3606A supports multi-cell configuration. The ODU3601C cascaded with the BTS3606A can be configured as an independent cell to realize flexible coverage.

The BTS3606A supports omni-cell and 3-sector cell configurations.

2.6.3 Smooth Expansion

The modular structure allows the BTS3606A to be expanded by simply adding modules.

By using multi-channel modules, the capacity of a single-channel BTS3606A cabinet can be expanded from 6 carriers to 18 carriers.

2.7 Serial Products for Seamless Coverage

Huawei provides a full range of BTS products to enable a seamless coverage for urban, suburb, and rural areas, highway, and hot spots.

Table 2-1 describes the applications of the Huawei BTS products.



Table 2-1 Applications of Huawei BTS products

Model Max

carriers per cabinet

Capacity Application Type

Single- channel 6 Medium

Medium and small cities, towns. Low requirement for equipment room

Indoor BTS supporting CDMA2000 1X and 1xEV-DO

BTS3606

Multi- channel 18 Large Densely populated

areas and cities

Indoor BTS supporting CDMA2000 1X and 1xEV-DO

Single- channel 6 Medium

Densely populated areas and cities, medium and small cities and towns

Outdoor BTS supporting CDMA2000 1X and 1xEV-DO

BTS3606A

Multi- channel 18 Large

High-traffic areas where room space is unavalble, densely populated areas and cities

Outdoor BTS supporting CDMA2000 1X and 1xEV-DO

cBTS3612 12 Large Densely populated areas and cities

Indoor BTS supporting both CDMA2000 1X and 1xEV-DO

BTS3612A 6 Medium High-traffic areas where room space is unavalble

Outdoor BTS supporting both CDMA2000 1X and 1xEV-DO

BTS3601C 1 Small Indoor, underground, highway, and railroad

Outdoor BTS supporting CDMA2000 1X (also applicable to indoor conditions)

ODU3601C 1 Small Indoor, underground, highway, and railroad

Outdoor BTS supporting CDMA2000 1X (also applicable to indoor conditions)



Chapter 3 System Architecture

This chapter introduces the physical features and configuration of the BTS3606A cabinet, and the functional subsystems and physical interfaces of the BTS3606A.

3.1 Outlook and Configuration

3.1.1 Cabinet Physical Features

The BTS3606A cabinet complies with IEC297 specifications.

The dimensions of the cabinet (excluding the components on the top of the cabinet) are:

Height x Width x Depth = 1,700 mm (66.93 in.) x 900 mm (35.43 in.) x 980 mm (38.58 in.)

Figure 3-1 shows the BTS3606A cabinet.

Figure 3-1 BTS3606A cabinet



Note:

The BTS3606A cabinet is configured with an air conditioner or a heat exchanger. Figure 3-1 shows a BTS3606A cabinet with an air conditioner. The difference lies in the air exhaust vent in the cabinet door only.

The BTS3606A cabinet features:

Completely-enclosed integrated structure, enhancing environment adaptability Light weight owing to its aluminum alloy materials Excellent electrical conductivity and shielding effect Good ventilation effect owing to its reasonable engineering of air ducts Easy installation and maintenance Nice and attractive outlook

3.1.2 Base Physical Features

I. Base Outlook

The dimensions of the base are:

Height x Width x Depth = 450 mm (17.72 in.) x 990 mm (38.98 in.) x 830 mm (32.68 in.)

Figure 3-2 shows the BTS3606A base.

Figure 3-2 BTS3606A base

II. Base Features

The BTS3606A base features:

The base can be fully configured with four 12 V/100 Ah batteries, supporting four hours power supply.

The installation area of the battery is less than 1 square meter.



3.2 Cabinet Configuration

The following takes the BTS3606A supporting CDMA2000 1X as an example to describe the cabinet configuration.

Figure 3-3 shows a fully equipped BTS3606A cabinet in the single-channel mode.

Cable inlet

fuse

power module

Cable through

+27V PDU

Fan box

AC Filter unit/AClightning

CDDU

CDDU

CDDU

Air exhaust ventAir exhaust vent

E1 lightningprotection board

CHPA/CMPA

CHPA/CMPA

CHPA/CMPA

CHPA/CMPA

CTRM/CMTR

CTRM/CMTR

CTRM/CMTR

CTRM/CMTR

CTRM/CMTR

CTRM/CMTR

CCPM/CECM

CCPM/CECM

CCPM/CECM

CCPM/CECM

CCPM/CECM

CCPM/CECM

BCKM

BCKM

BCIM

Tran

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AC lightning ACdistribution box

Battery

Secondary powersupply switch box

Cable through

Air intake vent

CHPA/CMPA

CHPA/CMPATr

ansi

mis

sion

Eqi

pmen

t

Tran

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ower

Figure 3-3 A fully equipped BTS3606A single-channel cabinet

Table 3-1 lists the boards and modules of the BTS3606A.

Table 3-1 Boards and modules of the BTS3606A

Acronyms Full name

BCIM BTS control interface module

BCKM BTS control & clock module

CCPM Compact-BTS channel process module

CECM Compact-BTS EV-DO channel module

CDDU Compact-BTS dual duplexer unit

CHCM Compact-BTS high-precision clock mudule

CHPA Compact-BTS high power amplifier

CPCM Compact-BTS power combination module

CTRM Compact-BTS transceiver module



Acronyms Full name

CMTR Compact-BTS multi-channel transceiver module

CMPA Compact-BTS multi-channel power amplifier

PSUAC/DC AC/DC power supply unit

PSUDC/DC DC/DC power supply unit

PMU Power management unit

Note:

The BTS3606A uses the CCPM to support CDMA2000 1X, and the CECM to support 1xEV-DO.

The same BTS3606A cabinet can be equipped with CCPMs and CECMs to support both CDMA2000 1X and 1xEV-DO.

The CPCM provides power combination when the BTS3606A in single-channel configuration operates at 1900 MHz.

The CTRM and CHPA are multi-channel modules.

3.3 Functional Architecture

The BTS3606A system consists of the following functional subsystems:

Baseband subsystem RF subsystem Power and environment monitoring subsystem Antenna subsystem

Space is also reserved in the BTS3606A cabinet to hold the transmission equipment such as the micro wave equipment and SDH equipment.

Figure 3-4 shows the architecture of the BTS3606A.



BSC

Baseband subsystem

Power and environment monitoring subsystem

RF subsystem

Abisinterface

Um interface

MS/ATAntenna subsystem

220 V AC or 110 V AC

BTS3606A

Figure 3-4 BTS3606A functional architecture

Caution:

When the maximum working environment of the BTS is 45, that of the built-in transmission equipment must be over 55.

3.3.1 Baseband Subsystem

The baseband subsystem comprises the BCKM, BCIM, CCPM, CECM, and CHCM. It has the following functions:

Provides Abis interface and processes the Abis interface protocol. Provides a fiber interface to the RF subsystem and processes the Um physical

layer and common channel (CCH) media access control (MAC) layer protocols. Implements modulation/demodulation of CDMA2000 1X and 1xEV-DO

baseband signals and coding/decoding of CDMA channels. Provides synchronization clock signals to the BTS. Performs system resource management, O&M, and environment monitoring.

Note:

The CHCM is optional. If the BTS is required to maintain the clock signal as long as 24 hours when the BTS cannot lock the satellite synchronization clock signal, you need to configure the CHCM. In this case, you need to configure only one BCKM at the upper part of the BCKM slot and the CHCM at the lower part.



3.3.2 RF Subsystem

The RF subsystem consists of the CTRM/CMTR, CHPA/CMPA, and CDDU.

On forward links, the RF subsystem processes signals as follows:

1) Performs power-adjustable up conversion and linear power amplification on modulated transmit signals.

2) Completes power combination (optional). 3) Filters transmit signals. 4) Sends the signals to the antenna subsystem.

On reverse links, the RF subsystem processes signals as follows:

1) Filters the signals received by the antenna to suppress out-band interferences. 2) Performs low-noise amplification. 3) Performs noise factor-adjustable down conversion and channel-selective

filtering. 4) Finally sends the signals to the baseband subsystem.

3.3.3 Antenna Subsystem

The antenna subsystem includes the RF antenna and the satellite synchronization antenna.

I. RF Antenna

This part includes the following components:

Transmit and receive antennas Feeders Jumpers

The RF antenna transmits and receives signals over the Um interface.

II. Satellite Synchronization Antenna

This part includes the following components:

Satellite signal receiving antenna Feeder Jumper Lightning arrester

The satellite synchronization antenna receives synchronization signals from GPS or GLONASS satellites to provide a precise clock source for the BTS.

3.3.4 Power and Environment Monitoring Subsystem

The power and environment monitoring subsystem includes the power supply, environment monitor, and temperature controller.



I. Power Supply

The power supply consists of:

AC distribution unit DC distribution unit PSUs (including PSUAC/DC and PSUDC/DC) Power management unit (PMU) Battery group Battery management unit

The PSUs operate in N+1 redundancy mode. If a PSU fails, an alarm will be reported. The PSUs support online insertion and removal.

II. Environment Monitor

The environment monitor includes the PMU and sensors.

The PMU collects environment variables such as temperature, humidity, smoke, water and access control data from the sensors, and reports them to the BCKM. The BTS then performs associated operations and reports the information to the operation and maintenance center (OMC).

III. Temperature Controller

The temperature controller may be an air conditioner or a heat exchanger that can ensure an operating temperature range: –40°C to 45°C (–40°F to 113°F).

3.4 Physical Interfaces

The BTS3606A provides the following physical interfaces listed in Table 3-2.

Table 3-2 Physical interfaces on the BTS3606A

Interface Type Quantity Function

Abis interface E1 or T1 8

These interfaces connect to the transmission system that connects to the BSC. They support IMA/UNI, cascading, and ATM over fractional ATM function. When E1 is used, the 75 Ω and 120 Ω link interfaces are available. When T1 is used, the 100 Ω link interface is available.

IP interface E1/FE 8 Transfers data to the BSC through an Ethernet network.

ODU3601C cascading interface

Optical fiber 12 One CCPM provides two optical interfaces to connect ODU3601Cs. A maximum of three ODU3601Cs can be cascaded in series.



Interface Type Quantity Function

GPS/GLONASS 2

Connects to the satellite signal receiver and satellite synchronization antenna to provide long-term stable clock signals. Clock

interface External synchronization clock input

1 Provides high-precision clock when GPS/GLONASS clock signals are unavailable.

Maintenance interface

Ethernet interface 1 Provides local maintenance path.

Reference clock interface

1 Outputs 10 MHz signals for test purpose. Clock test interface Synchronizati

on test interface

1 Outputs PP2S signals for test purpose.

Power supply interface 4 Respectively connect to A, B, C, and N lines of

three-phase power.

PGND interface 2 Respectively connect to the grounding cable and

auxiliary equipment.

Power supply and protection ground (PGND) interface DC interface 2 Provides –48V DC power to charge the battery

cabinet.

Antenna interface RF signal 6

These interfaces serve three sectors. Each sector corresponds to two DIN connectors that can be used for both transmitting and receiving.

Environment alarm chest (EAC) interface

Alarm signal 1 Provided by the PMU.



Chapter 4 Services and Functions

The BTS3606A complies with the following CDMA2000 1X specifications:

The Um interface supports TIA/EIA IS-2000 Rel.A and is compatible with TIA/EIA-95-A/B.

The minimum performance of the BTS3606A satisfies TIA/EIA-97-D requirements.

The BTS3606A complies with the following 1xEV-DO specifications:

The Um interface supports the C.S0024-0 standard. The minimum performance of the BTS3606A satisfies C.S0032-0 requirements.

This chapter introduces the major CDMA2000 1X and 1xEV-DO functions supported by the BTS3606A.

4.1 Power Control and Rate Control

The CDMA system is a self-interference system. Each subscriber is an interference source to other subscribers. If every MS transmits at the minimum power needed, the system capacity will reach the maximum. Therefore, power control directly determines system capacity and quality of service (QoS).

Operating in the CDMA2000 1X system, the BTS3606A adopts power control mechanism.

Power control is classified into:

Forward power control, used to control the transmit power of the BTS Reverse power control, used to control the transmit power of the MS

Operating in the 1xEV-DO system, the BTS3606A adopts:

Rate control in the forward direction Power control in the reverse direction

4.1.1 Forward Power Control

There are several methods to realize forward power control, depending on the MS's protocol version and system parameters.

I. Power Control Based on PMRM

In the power control based on power measurement report message (PMRM), the MS determines the method and frequency of reporting PMRM according to the received control message contained in the system parameter message.



II. Power Control Based on EIB

In the power control based on erasure indicator bit (EIB), the MS detects forward frame quality and sends this information to the BTS in an EIB. The BTS adjusts the transmit power according to the EIB information.

III. Forward Fast Power Control

The MS uses power control bits to adjust the transmit power of the BTS. The power control bit can be transmitted at a maximum speed of 800 bit/s.

The CDMA2000 1X system supports high-speed data services, which put high requirements on forward power control. The forward fast power control can accurately control the transmit power of forward channels. As a result, the interference is minimized and capacity increased.

4.1.2 Reverse Power Control

Reverse power control includes open-loop power control and closed-loop power control. Closed-loop power control is further classified into inner-loop power control and outer-loop power control.

I. Open-Loop Power Control

The MS determines its transmit power to access the network according to the strength of the received pilot signal.

II. Closed-Loop Power Control

The BTS sends a power control command to the MS, and adjusts its transmit power according to the feedback from the MS.

Figure 4-1 shows the principle of closed-loop power control.

MS BTS BSCEb/Nt FER

Power Control Bit

Eb/Nt changingquantity

Inner loop Outer loop

Figure 4-1 Closed-loop power control



In the inner-loop power control, the BTS sends power control bits to the MS according to the received Eb/Nt value.

In the outer-loop power control, the BSC adjusts the Eb/Nt value according to:

The frame error rate (FER) of the reverse signal received in the CDMA2000 1X network

The packet error rate (PER) of the reverse signal received in the CDMA2000 1xEV-DO network

Then the BTS sends power control bits to the MS based on the new Eb/Nt value. In this way, the transmit power of the MS can be controlled accordingly.

4.1.3 Rate Control

Rate control applies to 1xEV-DO forward links only. The AT controls the rate of the forward traffic channel through data rate control (DRC) channel assignment.

4.2 Handoff

When the MS/AT moves out of the serving cell/sector or the signal quality deteriorates to an unacceptable level, the MS/AT will be handed off to another cell/sector to maintain the ongoing traffic.

If the system determines that a handoff will help to improve the call quality and network performance, it will also trigger a handoff procedure.

Different from the CDMA2000 1X, the 1xEV-DO also introduces virtual soft handoff function in forward traffic links. The following describes five types of handoffs.

4.2.1 Soft Handoff

Soft handoff occurs between neighbor cells that operate on the same frequency and belong to different BTSs. The two BTSs can belong to the same BSC, or two different BSCs connected to each other through the A3/A7 interface.

In the soft handoff procedure, the MS maintains the connection with the previous cell till it establishes the communication with the new cell. The MS can establish radio links with multiple cells, select and combine the data received from these links to improve conversation quality and reduce call drops.

4.2.2 Softer Handoff

Softer handoff occurs between neighbor sectors that operate on the same frequency and belong to the same BTS. It is a special case of soft handoff.

As the MS establishes radio links with multiple sectors under the same BTS, the BTS can combine the diversity signals received by these sectors. Therefore, the speech quality during softer handoff is better than that during soft handoff.



4.2.3 Virtual Soft Handoff

Virtual soft handoff is applicable to 1xEV-DO forward traffic links only.

The AT monitors all pilot signals in the active set and chooses the sector with best signals as its serving sector. Then, it receives signaling messages and data from the selected sector. This process is called virtual software handoff.

The BTS determines whether the sector is selected according to the DRC cover.

4.2.4 Hard Handoff

In the hard handoff procedure, the MS first terminates the connection with the previous cell, and then sets up a connection with the new cell. Therefore, call drops may occur.

Hard handoff includes:

Intra-frequency hard handoff: Handoff between the BSCs without A3/A7 interface in-between.

Inter-frequency hard handoff: Handoff between cells operating on different frequencies.

4.2.5 Handoff Between CDMA2000 1xEV-DO and CDMA2000 1X Systems

The system supports the handoff by the 1xEV-DO/CDMA2000 1X dual-mode terminal between the CDMA2000 1xEV-DO and CDMA2000 1X systems, thus realizing interworking of both systems.

The dual-mode terminal performs registration, authentication, and signaling and data exchange in the two systems through the 1xEV-DO or CDMA2000 1X interface respectively.

4.3 Radio Configuration

The CDMA2000 1X physical layer supports multiple radio configurations (RCs). Different RCs support the frames of different rate sets, and feature different channel configurations and spread spectrum structures.

The transmission combinations supported by the BTS3606A include:

Forward RC1 and reverse RC1 Forward RC2 and reverse RC2 Forward RC3 or RC4, and reverse RC3 Forward RC5 and reverse RC4

Each RC supports traffic channels of different data rates. The bearer capability of the CDMA2000 1X system varies with RCs. For example, the CDMA2000 1X system with RC1 and RC2 is compatible with IS-95A/B.



4.4 Channel Configuration

A series of physical channels are defined on the Um interface. These physical channels are classified based on channel features. To support higher-rate data transmission, the 1xEV-DO uses a channel design different from that of the CDMA2000 1X.

4.4.1 CDMA2000 1X Channels

The following lists CDMA2000 1X channels.

I. Forward Channels

CDMA2000 1X forward channels include forward common channels and forward dedicated channels.

Forward common channels are further divided into:

Forward pilot channel (F-PICH)

F-PICH provides synchronization signals to the MSs operating in the BTS coverage. Different from other channels, the F-PICH is an unmodulated spread spectrum signal that is always in the transmit state.

Forward synchronization channel (F-SYNCH)

F-SYNCH provides initial time synchronization information to MSs operating in the BTS coverage.

Forward paging channel (F-PCH)

F-PCH sends overhead messages and MS-specific messages to MSs operating in the BTS coverage. Each CDMA channel in a sector supports seven paging channels at most.

Forward quick paging channel (F-QPCH)

F-QPCH sends the paging order and system configuration change order to slotted-mode MSs, instructing them to receive the paging messages. As a result, the MS battery energy is saved.

Forward common control channel (F-CCCH)

F-CCCH sends overhead messages and MS-specific messages to the MS.

Forward dedicated channels are further divided into:

Forward dedicated control channel (F-DCCH)

F-DCCH carries traffic information and signaling messages between the MS and BTS.

Forward fundamental channel (F-FCH)

F-FCH carries traffic information between the MS and BTS.



Forward supplemental channel (F-SCH)

F-SCH carries traffic information between the MS and BTS. It is applicable to RC3, RC4, and RC5 only.

II. Reverse Channels

CDMA2000 1X reverse channels include reverse common channels and reverse dedicated channels.

Reverse common channels are further divided into:

Reverse access channel (R-ACH)

The MS communicates with the BTS and responds to paging channel messages through the R-ACH.

The MS uses random access protocol to initiate an access procedure. With respect to each supported paging channel, 32 access channels can be supported at most.

Reverse enhanced access channel (R-EACH)

The MS initiates the communication with the BTS or responds to dedicated paging channel messages through the R-EACH.

Reverse dedicated channels are further divided into:

Reverse fundamental channel (R-FCH)

R-FCH carries traffic information between the MS and the BTS.

Reverse dedicated control channel (R-DCCH)

R-DCCH carries traffic information and signaling messages between the MS and the BTS.

Reverse supplemental channel (R-SCH)

R-SCH carries traffic information between the MS and the BTS. It is applicable to RC3 and RC4 only.

4.4.2 CDMA2000 1xEV-DO Channels

The following lists CDMA2000 1xEV-DO channels.

I. Forward Channels

The CDMA2000 1xEV-DO forward channels adopt the TDM mode. It includes four types of channels:

Pilot channel

Signals transmitted on the pilot channel are unmodulated signals. They are used for AT synchronization and other associated functions.



Different from the continuous pilot of IS-95/1X system, pilot channel signals are only transmitted on the activated forward channels in a CDMA2000 1xEV-DO system.

Media access control (MAC) channel

There are three code division sub-channels in the MAC channel:

–Reverse activity (RA) sub-channel, used for reverse overload control on the Um interface.

–Reverse power control (RPC) sub-channel, used for reverse power control.

–Data rate control lock (DRCLock) sub-channel, used by the AN to inform the AT whether the DRC channel of the AT can be properly demodulated. It plays an important role in helping the AT with the forward virtual handoff.

Control channel

The control channel is similar to the paging channel in a CDMA2000 1X system. It broadcasts various overhead messages and transmits other uni-cast messages such as paging messages.

Traffic channel

The traffic channel carries traffic data. It is a TDM channel serving multiple subscribers.

II. Reverse Channels

The 1xEV-DO reverse channels include reverse access channels and reverse traffic channels.

Reverse access channel

The AT originates calls or responds to network paging messages through the reverse access channel. The reverse access channel covers pilot sub-channel (transmitted on I channel) and data sub-channel (transmitted on Q channel).

Reverse traffic channel

The reverse traffic channel covers pilot channel, MAC channel, acknowledgement (ACK) channel, and data channel.

–Pilot channel

The pilot channel helps the coherence demodulation and phase estimation of the BTS3606A.

–MAC channel

The MAC channel consists of reverse rate indicator (RRI) sub-channel and DRC sub-channel.

The AT uses the DRC sub-channel to report the quality of the forward channel to the AN. The AN can adjust the rate and the sector for transmitting data to the AT



according to DRC channel messages. In this way, the air resources can be best utilized.

The RRI sub-channel indicates the data channel the rate for transmitting data.

–ACK channel

The ACK channel helps the AT notify the AN whether the data packets from forward traffic channel are correctly received. This function helps the AT adjust its forward rate estimation to improve system performance.

–Data channel

The data channel carries reverse data. In a 1xEV-DO system, it can transmit data at five rates: 9.6 kbit/s, 19.2 kbit/s, 38.4 kbit/s, 76.8 kbit/s, and 153.6 kbit/s.

4.5 DO+ Features

The DO+ features include the BCMCS and enhanced proprietary QoS.

4.5.1 BCMCS

The BCMCS includes static arming broadcast stream and dynamic arming broadcast stream.

Static arming broadcast stream

You must configure BCMCS broadcast links on the BTS3606A. On the configuration console, you configure a permanent virtual channel (PVC) link shared by subscribers to realize the broadcast.

Dynamic arming broadcast stream

The BSC dynamically assigns a physical channel shared by subscribers to realize the broadcast.

The DO+ features support the broadcast of intra-BTS BCMCS stream. Each broadcast stream establishes a microchannel of terrestrial links.

4.5.2 Enhanced Proprietary QoS

The enhanced QoS features include the following:

DO dedicated line subscribers Inter-DO subscriber QoS IX dedicated line subscribers

4.6 1X Rel A Features

The 1X Rel A supports cell broadcast short messages and forward power control.



4.6.1 Forward Power Control

The BTS3606A extracts forward frame quality bits on the reverse power control sub-channel reported by the AT and forwards them to the BSC. The BSC implements fast power control according to the information.

4.6.2 Cell Broadcast Short Message

The BTS3606A transmits broadcast short messages on the paging channel in multi-timeslots or periodic modes.

4.7 Multi-Channel Function

The BTS3606A supports the simultaneous compatibility with single-channel transceiver module and multi-channel transceiver module. A multi-channel cabinet can hold both the single-channel transceiver module and multi-channel transceiver module.

A single-channel transceiver unit (consisting of one CTRM and one CHPA, one CTRM and one CMTR, or one CMTR and one CHPA) can process one carrier signal. A multi-channel transceiver module (consisting of one CMTR and one CMPA) can process three carrier signals. Therefore, multi-channel transceiver units can realize the maximum configuration of S(6/6/6), that is, 18 sector carriers.

The cabinet supports 450 MHz, 800 MHz, and 1900 MHz bands.

4.8 Receiving Diversity

The BTS3606A supports the receiving diversity function. This function is implemented through two sets of independent receiving equipment, each of which comprises the antenna, feeder, CDDU, and main/diversity receiving channels.

The two sets of receiving equipment demodulate the received signals at the same time. Then the baseband processing unit decodes the signals with diversity combining algorithm to provide certain diversity gain.

Receiving diversity enhances the anti-attenuation capability of the BTS receiver, and ensures the receiving effect of the BTS under complicated radio environment.

4.9 Cell Breathing

Under the control of the BSC, the BTS3606A adjusts its transmit power to control the coverage area, thus balancing the system load.

For neighbor cells, the cell with heavier load reduces the transmit power on the pilot channel so that MSs at the edge of the cell can be handed off to the neighbor cell. In this way, load sharing can be realized. That is, the system capacity is increased.



The controllable range of the transmit power for cell breathing function is from 0 dB to 24 dB, with a control step of 0.5 dB.



Chapter 5 Reliability

This chapter introduces the system reliability, hardware reliability, and software reliability measures of the BTS3606A.

5.1 System Reliability

This section introduces the measures employed by the BTS3606A to improve system reliability.

5.1.1 De-rating Design

De-rating design aims to lower the electrical stress and temperature stress on the high-power or heat-generating components to a value smaller than the rated one. It slows components aging and prolongs the service life of components.

5.1.2 Quality Control of Components

The category, specifications and manufacturers of the components are carefully selected based on the requirements for high reliability and maintainability.

The replaceability is also considered in selecting components.

All components feature high quality that is proved by burn-in test and strict inspection. Strict quality control is implemented during assembling process to ensure high reliability and stability in a long run.

5.1.3 Thermal Design

Thermal design focuses on the following aspects to minimize the impact of temperature changes on product performance:

Component selection Circuit design Mechanical design Heat dissipation

The thermal design ensures that the BTS3606A operates reliably in a wide range of temperatures.

5.1.4 EMC Design

The EMC design ensures that the electromagnetic interference (EMI) from other equipment has no impact on BTS3606A performance, and vice versa.



5.1.5 Threshold for Closing CHPA/CMPA

The BTS3606A is designed with a threshold for closing the CHPA/CMPA. If the temperature of the air intake vent at the baseband subrack exceeds 60 degrees Celsius, the CHPA/CMPA is closed. You can set the temperature for the threshold.

5.1.6 Redundancy Design

For the purpose of reliability, the system is designed with several units of the same type. The system does not fail until all units become faulty at the same time.

5.1.7 Reliability Measures for Input Power

The BTS3606A provides the following measures to ensure the reliability of its input power:

Protection against reverse connection of power supply Testing on the input voltage, and generating alarms when the voltage is too low

or too high Protection against sharp voltage drop and lightning strikes Protection of program and data in case of power failure

5.1.8 Maintainability Design

Reasonable internal wiring of the BTS3606A enables easy board replacement. To replace a faulty board, you only need to remove the cables of this board.

The board can be removed and inserted directly from the front of the cabinet.

In addition, board indicators are provided to help identify board status.

5.1.9 Fault Monitoring and Handling

The BTS3606A system can detect and diagnose software and hardware faults. It can record, output, and print fault information. In addition, it collects environment information and generates alarms if there is any exception.

When faults occur to the hardware, the system first locates the fault, then isolates the faulty component and automatically activates the standby components to ensure normal operation.

The system confirms a hardware fault through repeated detection, thus avoiding the reconfiguration of the system or the degradation of QoS due to contingent faults.

For software faults, the system provides automatic error-correction and recovery functions, including restarting and reloading.



The BTS3606A also records, outputs, and notifies users of critical faults through the network management system. Therefore, users can easily operate and maintain the system through a maintenance console.

5.2 Hardware Reliability

This section introduces the measures employed by the BTS3606A to improve hardware reliability.

5.2.1 Protection Against Wrong Insertion of Boards

When a board is inserted into a wrong slot, the special guide pins prevent the board from touching the backplane. This avoids possible damage to the backplane owing to wrong insertion.

5.2.2 BCKM Active-Standby Switchover

After the BTS is configured with the standby BCKM, the active BCKM backs up the configuration data and running data to the standby BCKM periodically. Once a critical fault occurs to the active BCKM, the standby BCKM will become active to ensure the normal operation and synchronization between active and standby clocks.

5.2.3 BCIM Resistance Query

The BCIM supports resistance query. For E1 ports, you can both set and query the resistance.

5.2.4 N+1 Redundancy for Baseband Fans

The baseband fans operate in the N+1 redundancy mode, with one standby fan equipped. When one fan fails, this standby fan starts working to ensure cooling effect.

5.2.5 Abis Interface Link Backup

The BTS3606A supports Abis interface link backup function to improve the reliability of links. If the active link is faulty, the system automatically carries out active-standby link switchover.

5.2.6 CE Pool Design for CCPMs

The CCPMs operate in the CE pool mode. They are connected into a daisy chain to maximize the utilization of channel resources and enable flexible channel capacity configuration for each sector carrier.



5.2.7 Status Monitoring and Alarm Report

The BCKM monitors the status of other boards or modules, and reports alarms when fault occurs.

5.2.8 Distributed Power Supply

The BTS3606A adopts a distributed power supply. The DC/DC power modules operate in N+1 redundancy mode.

When an error occurs to a power module, an alarm is generated and sent to the BAM. You can replace the faulty module during the live operation of the system.

5.3 Software Reliability

This section introduces the measures employed by the BTS3606A to improve software reliability.

5.3.1 Periodic Check on Key Resources

The BTS3606A checks the software resources that are occupied for a long time. If it finds that certain resource becomes unavailable owing to software error, it releases the resource and outputs logs and alarms.

5.3.2 Process Monitoring

Process monitoring provides a channel for outputting various software and hardware faults while the software is running. This function helps you to monitor the running status of a specific task or system, and reports the information to associated devices.

5.3.3 Data Check

Data check consists of the following contents:

Checking the consistency of data on different processing boards, restoring the data, and outputting logs and alarms.

Checking the consistency of the data entered by the user to ensure correct reference relation among data.

Restoring the data to the initial state when the modification of some data fails. Conducting automatic check upon the version upgrade of the BTS3606A.

5.3.4 Fault Isolation

In the BTS3606A, if a fault occurs to a software module, other software modules will not be affected.



The BTS3606A software also features powerful fault tolerance and correction capability. A minor operation exception will not cause system restart.

5.3.5 Black Box Function

If a fatal error occurs to a board of a BTS3606A, the system prompts to replace the board and records the associated information on the Flash memory of the board.

5.3.6 Self-Test

You can perform self-test on the BTS3606A system, its boards and backplanes to locate problems efficiently and accurately.

5.3.7 Optimization of Standing Wave Alarm Detection

The optimization of standing wave alarm detection greatly increases the accuracy of detecting the BTS3606A standing wave alarms.

5.3.8 Upgrade Reversibility

The BTS3606A allows program and data restoration. When an upgrade fails, you can restore the original program and data configuration.

5.3.9 Log Function

The O&M software can automatically record users' operations and save them into a log file.

When an unknown error occurs to the system, you can refer to the log files to find out the normal status for the purpose of fault location or data restoration. Log files also save the information prior to the occurrence of board failures, which helps locate problems efficiently.



Chapter 6 Operation and Maintenance

The operation and maintenance (O&M) over the BTS3606A can be performed through the local O&M system and the Huawei iManager M2000 Mobile Integrated Network Management System (hereinafter referred to as M2000 system).

This chapter introduces the structures and functions of the local O&M system and M2000 system.

6.1 Structure of the O&M System

This section introduces the structures of the local O&M system and M2000 system.

6.1.1 Structure of Local O&M System

Figure 6-1 shows the structure of the local O&M system used for BSS/AN.

Internet

IPoEIPoA

IPoA

Router

IPoE

IPoE

Router

IPoEBSC

BTS

BTS

IPoA: IP over ATM IPoE: IP over Ethernet BTS: Base transceiver station BSC: Base station controller

Figure 6-1 BSS/AN's local O&M system

I. Far-End Maintenance

To realize the far-end maintenance on BTS, a local maintenance terminal (LMT) is connected to the BSC BAM.

The local O&M system of the BSS is designed in client/server (C/S) structure, where LMT is a client and BAM a server.

The far-end maintenance process is as follows:

1) The user enters commands through the LMT. 2) The BAM processes commands from the LMT.



3) The BAM sends these commands to the host (BSC or BTS) and waits for responses.

4) The BAM records the operation results (such as success, failure, timeout, or abnormality) and sends the results to the LMT in a specified format.

In this way, users can manage the BTSs under the control of the BSC and carry out network planning in a centralized way.

II. Near-End Maintenance

To realize the near-end maintenance, the LMT is directly connected to the BTS through a network cable.

Users can log in to the BTS through Telnet client and execute MML commands to maintain the BTS.

Users can also employ the reverse maintenance function to log in to the BSC BAM from the BTS to realize the maintenance over the whole BSS.

6.1.2 Structure of M2000 System

The M2000 system provides centralized maintenance functions for mobile communications equipment. In this system, the M2000 server is the core. Various network elements (such as BSC, MSC, and HLR) connect to the M2000 system with the M2000 server as the core through local area networks (LANs) or wide area networks (WANs).

The BSC connects to the M2000 system through the BAM.

Figure 6-2 shows the typical networking of the M2000 system.

M2000 ServerWS

Dialup ServerNE

PSTN

E1,DDN,X.25,frame relay

NE

NE

WS

Router

Router

Figure 6-2 Networking of M2000 system



Through the M2000 system, users can complete the following functions:

Performance management: Register the traffic measurement tasks of NEs on the client, and view the execution results of the tasks registered on the whole network.

Fault management: Obtain required alarm data of the NEs from the alarm client by setting combined conditions, view query results, and perform associated management operations.

6.2 O&M Functions

The O&M system provides full range of functions for users to operate and maintain the equipment, such as security management, alarm management, and loading management.

6.2.1 Security Management

To prevent illegal operations, the O&M system provides strict security measures to manage and control users and operation terminals.

You must log in to the system and pass the authentication before you can operate and maintain the BTS3606A. The system provides a multi-level authority mechanism so that only authorized users can use specified command sets.

The timeout locking function is provided. When the user does not operate the system within a specific period, the system will automatically lock the screen. The user needs to enter the password again before he can continue with the operation.

Before the execution of important commands, the system provides warnings and asks for confirmation.

6.2.2 Alarm Management

The O&M system performs centralized management over the alarms of the BSC and the BTS. The BSS maintenance console in the system provides real-time alarm management functions, including:

Alarm collection Alarm clearing Alarm query Alarm processing Alarm storage Alarm interpretation Alerting Alarm shielding Alarm filtering Alarm acknowledgement



Alarm analyzing

In addition, the alarm management system provides rich online help and multi-level filtering for alarms to help uses locate and remove faults.

While reporting alarms, the BTS3606A drives status indicators and alarm box to give out audible and visible alarms.

6.2.3 Loading Management

The loading management function allows the loading of the software and the configuration data.

Software loading involves the downloading and activation of the central processing unit (CPU) software and the field programmable gate array (FPGA) logic.

Configuration data loading involves the downloading and uploading of configuration data.

6.2.4 Configuration Management

Configuration management involves the configuration of the BTS3606A equipment and radio resources. This function also allows users to query configuration data and check data consistency.

This function supports both online and offline data configuration, as well as batch processing of data.

6.2.5 Equipment Management

Equipment management allows users to monitor and query the statuses of boards and the system. It also provides user operation logs and system running logs to facilitate fault location and removal.

The equipment management function includes:

Version query Status query Electronic label query Log management Equipment reset Resource block/unblock Power supply management

6.2.6 Test Management

Test management functions help users locate faults and optimize system performance. Supported tests include:



Board loopback test Self-detection test Abis link test

6.2.7 Tracing Management

Tracing management functions help users locate faults and analyze system performance. The objects to be traced include various interfaces and indexes.

The traced results of some indices (such as CPU load, board temperature, CTRM transmit power, and receive signal strength indicator) can be displayed in graphics on real-time basis.



Chapter 7 Technical Specifications

This chapter provides the technical specifications of the BTS3606A, including engineering, capacity, transmitter/receiver performance, and ODU cascading specifications.

7.1 Engineering Specifications

Table 7-1 lists the engineering specifications of the BTS3606A.

Table 7-1 Engineering specifications of the BTS3606A

Item Specifications

Cabinet dimensions (height x width x depth)

1,700 mm (66.93 in.) x 900 mm (35.43 in.) x 980 mm (38.58 in.)

Input power

Current range: 220 V AC to 240 V AC Overvoltage protection when the voltage reaches over 305 V Frequency range: 45 Hz to 60 Hz Under voltage protection when the voltage reaches less than 90 V 110 V AC Two-phase input (phase difference: 180°)

Cabinet weight 410 kg (904.05 lb) (excluding the batteries and the built-in transmission equipment)

Power supply in full configuration

The DC power of the BTS3606A is ≤ 2600 W The AC power of the BTS3606A with an exterior battery cabinet is ≤ 9000 W

Operating temperature –40°C to +45°C (–40°F to 113°F)

Relative humidity 5% to 100%

Noise ≤ 65 dBA (varies with the ambient temperature. The data is measured at 25°C (77°F) and complies with the GR487 specification)

Availability ≥ 99.999%

MTBF: ≥ 100,000 hours

Reliability MTTR: ≤ 1 hour (excluding the time spent on the journey) MTTR: ≤ 3 hours (including the time spent on the journey)

Table 7-2 lists the whole system consumption of the BTS3606A with a battery cabinet.



Table 7-2 Whole system consumption of the BTS3606A with a battery cabinet

BTS configuration

Charging time (h)

Battery capacity (Ah)

Power added

(W)

Maximum power (including the battery charge and excluding the heater) (W)

AC/DC Number of

AC/DC (Pcs)

0 0 0 703 2

2 100 (built-in) 405 1,108 2

4 155 628 1,331 2 Standard O (1)

8 260 1,053 1,545 3

0 0 0 865 2

1 100 (built-in) 405 1,270 2

2 155 628 1,493 2

4 200 810 1,675 3

O (1) with big power and standard O (2)

8 300 1,215 2,080 3

0 0 0 1,350 2

1 100 (built-in) 405 1,755 3

2 200 810 2,160 3

4 260 1,053 2,403 3

S(1/1/1)

8 500 2,025 3,375 4

0 0 0 1,835 3

0.5 100 (built-in) 405 2,240 3

1 155 628 2,463 3

2 260 1,053 2,888 3

4 400 1,620 3,455 4

S(2/2/2)

8 650 2,633 4,468 4

0 0 0 2,844 3

0.5 100 (built-in) 405 3,249 4

1 260 1,053 3,898 4

2 400 1,620 4,464 4

4 650 2,633 5,477 5

S(3/3/3) (six power amplifier )

8 1,000 4,050 6,894 6

0 0 0 3,330 4 Standard S(4/4/4)

5 155 628 3,958 4



BTS configuration

Charging time (h)

Battery capacity (Ah)

Power added

(W)

Maximum power (including the battery charge and excluding the heater) (W)

AC/DC Number of

AC/DC (Pcs)

1 260 1,053 4,383 4

2 500 2,025 5,355 5

4 650 2,633 5,963 5

(six power amplifier and maximum power)

S(5/5/5) S(6/6/6) 8 1,300 5,256 8,586 6

7.2 Capacity Specifications

The maximum capacity of one BTS3606A cabinet is 6 sector carriers. Equipped with multi-channel modules, the BTS3606A can provide 18 sector carriers.

The BTS3606A supports two types of channel processing boards: CCPM and CECM. The former supports CDMA2000 1X protocols, and the latter supports CDMA2000 1xEV-DO protocols.

7.2.1 Capacity in CDMA2000 1X Network

The BTS3606A capacity depends on the number of sector carriers configured. One sector carrier serves about 20 IS-95 subscribers or 40 CDMA2000 1X subscribers.

The maximum reverse channel capacity of one carrier (three sectors configuration) is 128 channels, which reaches 256 channels by means of resource pools.

7.2.2 Capacity in 1xEV-DO Network

The BTS capacity in 1xEV-DO network depends on the number of sector carriers configured. One sector carrier can serve up to 48 subscribers.

The maximum reverse channel capacity of one carrier (three sectors configuration) is 96 channels.

7.3 Trunking Call Specifications

Trunking call falls into the following three categories:

Single call Group call Broadcast call



7.3.1 Single Call Specifications

Table 7-3 lists the single call specifications.

Table 7-3 Single call specifications

PTT seizure time Processing time at BSS side less than 50 ms

Number of single calls supported simultaneously

40 (single sector carrier) 240 (single carrier in full configuration) 720 (multi–carriers in full configuration)

7.3.2 Group Call and Broadcast Call Specifications

Table 7-4 lists the group call and broadcast call specifications.

Table 7-4 Group call and broadcast call specifications

PTT seizure time Processing time at BSS side less than 50 ms

Number of group calls and broadcast calls supported

simultaneously

40 (single sector carrier) 240 (single carrier in full configuration) 720 (multi–carriers in full configuration)

7.4 Transmitter and Receiver Specifications

This section provides the specifications of the BTS3606A transmitters and receivers operating in different bands.

Note:

The transmit power is the maximum value measured at the RF port of the cabinet. The multi-channel transmit power is the total power instead of the power of an

individual channel. The signal receiver sensitivity is the main and diversity receive sensitivity at the

RC3.

7.4.1 Transmitter and Receiver Specifications in Band Class 0

Table 7-5 and Table 7-6 list the specifications of BTS3606A transmitters and receivers operating in the band class 0 (800 MHz band).



Table 7-5 Specifications of BTS3606A transmitters operating in band class 0

Item Specifications

Operating band 869 MHz to 894 MHz

Channel bandwidth 1.23 MHz

Channel precision 30 kHz

Frequency tolerance ≤ ! 0.05 ppm

Transmit power Single-channel module: 20 W Multi-channel module: 60 W

Table 7-6 Specifications of BTS3606A receivers operating in band class 0

Item Specifications




Signal receiver sensitivitySingle-channel module: Better than –127 dBm Multi-channel module: Better than –126 dBm


Table 7-7 and Table 7-8 list the specifications of BTS3606A transmitters and receivers operating in the band class 1 (1900 MHz band).


Item Specifications








Table 7-8 Specifications of BTS3606A receivers operating in in band class 1

Item Specifications




Signal receiver sensitivity Single-channel module: Better than –127 dBm Multi-channel module: Better than –126 dBm


Table 7-9 and 0 list the specifications of BTS3606A transmitters and receivers operating in the band class 5 (450 MHz band).


Item Specifications



Channel precision 25 kHz, 20 kHz




Item Specifications



Channel precision 25 kHz, 20 kHz

Signal receiver sensitivity Single-channel module: Better than –127 dBm Multi-channel module: Better than –126 dBm


Table 7-11 and 0 list the specifications of BTS3606A transmitters and receivers operating in the band class 10 (800 MHz band).




Item Specifications







Item Specifications




Signal receiver sensitivity Single-channel module: Better than –127 dBm

7.5 ODU3601C Cascading Specifications

Table 7-13 lists the specifications of the BTS3606A with respect to ODU3601Cs cascading in CDMA2000 1X and 1xEV-DO networks.



Table 7-13 Specifications of BTS3606A with respect to ODU3601Cs cascading

Maximum distance of single cascading

10 km (32,808 ft), 70 km (229,656 ft) (respectively corresponding to the two types of CCPM)

Maximum number of cascading levels 3

CDMA2000 1X

Maximum total distance after cascading 90 km (295,272 ft)

Maximum distance of single cascading

8 km (26,246.4ft) It applies to 32 subscribers and the BTS3606A version without the crest factor reduction (CFR) function. 4.5 km (14,763.6 ft) It applies to 32 subscribers and the BTS3606A version with the CFR function.

Maximum number of cascading levels 3 1xEV-DO

Maximum total distance after cascading

8 km (26,246.4ft) It applies to 32 subscribers and the BTS3606A version without the CFR function. 4.5 km (14,763.6 ft) It applies to 32 subscribers and the BTS3606A version with the CFR function.

7.6 Transmission Link BER Threshold Specifications

The bit error rates (BERs) of transmission links has the same impact on the UNI and IMA. Table 7-14 lists the BER threshold specifications of transmission links.

Table 7-14 BER threshold specifications of transmission links

Type Max. BER threshold

1X voice service 2 x 10e-4

Packet service 2 x 10e-6

Maintenance function 5 x 10e-5



Chapter 8 Standard Compliance

The BTS3606A complies with various international standards. This chapter lists the major technical, lightning protection, safety, EMC, and environment standards observed by the BTS3606A.

8.1 General Technical Standards

The BTS3606A complies with the following general technical standards:

TIA/EIA-97-D: Recommended Minimum Performance Standards for Base Stations Supporting Dual-mode Spread Spectrum Mobile Stations.

Federal IMT-MC (CDMA 2000) Cellular Mobile System Operating in Band 450 MHz.

C.S0032-0V1.0 Recommended Minimum Performance Standards for CDMA2000 High Rate Packet Data Access Network

C.S0039-0V1.0 Enhanced Subscriber Privacy for CDMA2000 High Rate Packet Data

C.S0038-0V1.0 Signaling Conformance Specification for High Rate Packet Data Air Interface

8.2 Um Interface Standards

This section lists the Um interface standards that the BTS3606A complies on physical layer, MAC layer and service capability.

8.2.1 Physical Layer

TIA/EIA IS-2000-2-A: Physical Layer Standard for CDMA 1X Standards for Spread Spectrum Systems.

C.S0024-0V4.0 CDMA2000 High Rate Packet Data Air Interface Specifications

8.2.2 MAC Layer

TIA/EIA IS-2000-3-A: Medium Access Control (MAC) Standard for CDMA 1X Standards for Spread Spectrum Systems.

8.2.3 Service Capability

TSB2000: Capabilities Requirements Mapping for CDMA 1X Standards.



8.3 Abis Interface Standards

This section lists the Abis interface standards that the BTS3606A complies on physical layer, ATM layer, and so on.

8.3.1 Physical Layer

I. E1 Interface

E1 Physical Interface Specification, September 1996

II. SDH STM-1

ANSI T1.101: Synchronization Interface Standard.

ITU-T G.707: (3/96) Network node interface for the synchronous digital hierarchy (SDH).

ITU-T G.703: (10/98) Physical/electrical characteristics of hierarchical digital interfaces.

ITU-T G.957: Optical interface for equipment and systems relating to the synchronous digital hierarchy.

ITU-T G.958: Digital line systems based on the synchronous digital hierarchy for use on optical fiber cables.

III. ATM

AF-PHY-0086.001: Inverse Multiplexing for ATM (IMA) Specification Version 1.1.

ATM Forum af-phy-0064.000.

STR-PHY-FN64-01.00: ATM on Fractional E1/T1.

8.3.2 ATM Layer

ANSI T1.627-1993: Telecommunications Broadband ISDN-ATM Layer Functionality and Specification.

8.3.3 ATM Adaptation Layer

ITU-T recommendation I.366.2: B-ISDN ATM Adaptation Layer Type 2 Specification.

ITU-T I.363.5: B-ISDN ATM Adaptation Layer 5 Specification: Type 5 AAL.

8.3.4 TCP/IP

RFC791: Internet Protocol.

RFC793: Transport Control Protocol.



8.3.5 Abis Interface High-Layer Protocol

3GPP2 A.R0003: Abis interface technical report for CDMA 1X Spread Spectrum System.

8.3.6 Huawei Self-defined Standard

CDMA 1X Abis interface high-layer specification

8.4 Lightning Protection Standards

The BTS3606A complies with the following lightning protection standards:

IEC 61312–1 (1995) Protection against Lightning Electromagnetic Impulse Part I: General Principles.

IEC 61643–1 (1998) Surge Protective devices connected to low-voltage power distribution systems.

ITU-T K.11 (1993) Principles of Protection against Overvoltage and Overcurrent. ITU-T K.27 (1996) Bonding Configurations and Earthing Inside a

Telecommunication Building. ETS 300 253(1995) Equipment Engineering; Earthing and bonding of

telecommunication equipment in telecommunication centers.

8.5 Safety Standards

The BTS3606A complies with the following safety requirements:

GB4943–2000: Safety of information technology equipment. IEC60950 Safety of information technology equipment including Electrical

Business Equipment. IEC60215 Safety requirement for radio transmitting equipment. CAN/CSA–C22.2 No 1-M94 Audio, Video and Similar Electronic Equipment. CAN/CSA–C22.2 No 950-95 Safety of Information Technology Equipment

Including Electrical Business Equipment. UL 1419 Standard for Professional Video and Audio Equipment 73/23/EEC Low Voltage Directive. UL 1950 Safety of information technology equipment Including Electrical

Business Equipment. IEC60529 Classification of degrees of protection provided by enclosure (IP

Code). GOST 30631–99. General Requirements to machines, instruments and other

industrial articles on stability to external mechanical impacts while operating. GOST R 50829–95. Safety of radio stations, radio electronic equipment using

transceivers and their components. The general requirements and test methods.



GOST 12.2.007.0–75. Electrotechnical devices. The general safety requirements.

8.6 EMC Standards

The BTS3606A complies with the following EMC standards:

TS 25.105; 3rd Generation Partnership Project; TSG RAN WG4; UTRA (BS) TDD: Radio transmission and reception89/336/EEC EMC directive Council directive of 3 May 1989 on approximation of laws of the Member States relating to electromagnetic compatibility.

CISPR 22 (1997): Limits and methods of measurement of radio disturbance characteristics of information technology equipment.

IEC 61000–6–1: 1997: Electromagnetic compatibility (EMC) – Part 6: Generic standards – Section 1: Immunity for residential, commercial and light-industrial environments.

IEC 61000–6–3: 1996: Electromagnetic compatibility (EMC) – Part 6: Generic standards – Section 3: mission standard for residential, commercial and light industrial environments.

IEC 61000–3–2 (1995): Electromagnetic compatibility (EMC) – Part 3: Limits – Section 2: Limits for harmonic current emissions (equipment input current = 16 A).

IEC 61000–3–3 (1995): Electromagnetic compatibility (EMC) – Part 3: Limits –Section 3: Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current = 16 A.

IEC 61000–4–2 (1995): Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 2: Electrostatic discharge immunity test.

IEC 61000–4–3 (1995): Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 3: Radiated, radio-frequency electromagnetic field immunity test.

IEC 61000–4–4 (1995): Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 4: Electrical fast transient/burst immunity test.

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

IEC 61000–4–6 (1996): Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 6: Immunity to contacted disturbances, induced by radio frequency fields.

IEC 61000–4–11 (1994): Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 11: Voltage dips, short interruptions and voltage variations. Immunity tests.

ITU-T Recommendation K.20: Resistibility of Telecommunication Switching Equipment to Overvoltages and Overcurrents.



CFR 47, FCC Part 15: Radio Frequency Device. TS 25.113v3.1.0: 3rd Generation Partnership Project; Technical Specification

Group Radio Access Networks; Base station EMC. ITU-R Rec. SM.329-7: Spurious emissions. GOST R 51318.22-99: Electromagnetic compatibility of technical equipment.

Man-made noise from informational equipment. Limits and test methods. GOST 30429-96: Electromagnetic compatibility of technical equipment.

Man-made noise from equipment and apparatus used together with service receiver systems of civil application. Limits and test methods.

8.7 Environment Standards

The BTS3606A complies with the following environment requirements:

GB4208 Degrees of protection provided by enclosure (IP code). GB4798 Environmental conditions for electrician and electronic products

application. IEC 60529 "Degrees of protection provided by enclosure (IP code)" IEC 60721-3-1: Classification of environmental conditions – Part 3: Classification

of groups of environmental parameters and their severities-Section 1: Storage. IEC 60721-3-2: Classification of environmental conditions – Part 3: Classification

of groups of environmental parameters and their severities-Section 2: Transportation.

IEC 60721–3–3 (1994): Classification of environmental conditions – Part 3: Classification of groups of environmental parameters and their severities – Section 3: Stationary use at weather protected locations.

IEC 60721–3–4 (1995): Classification of environmental conditions – Part 3: Classification of groups of environmental parameters and their severities – Section 4: Stationary use at non-weather protected locations.

ETS 300 019-2-1: Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 2-1, Specification of environmental tests Storage.

ETS 300 019-2-2: Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 2-2, Specification of environmental tests Transportation.

ETS 300 019-2-3: Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 2-3, Specification of environmental tests Transportation Stationary use at weather-protected locations.

ETS 300 019-2–3: Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 2-3, Specification of environmental tests Transportation Stationary use at non-weather-protected locations.



IEC 60068–2–1 (1990): Environmental testing – Part 2: Tests. Tests A: Cold. IEC 60068–2–2 (1974): Environmental testing – Part 2: Tests. Tests B: Dry heat. IEC 60068–2–6 (1995): Environmental testing – Part 2: Tests - Test Fc: Vibration

(sinusoidal). GOST 15150–69: Machines, instruments and other industrial articles.

Applications for different climatic regions. Categories, operating, storage and transportation conditions in compliance with the environmental factors.

GOST 23088–80: Electronic equipment. Requirements to packing and transportation and test methods.



Chapter 9 Acronyms and Abbreviations

#

1xEV-DO Single 1.25MHz carrier Evolution - Data Optimized

1xEV-DV Single 1.25MHz carrier Evolution - Data and Voice

3GPP2 3rd Generation Partnership Project 2

A

AAA Authorization, Authentication and Accounting

AC Alternating Current

ACK Acknowledgement

AN Access Network

AT Access Terminal

ATM Asynchronous Transfer Mode

B

BAM Back Administration Module

BCIM BTS Control Interface Module

BCKM BTS Clock Module

BTS Base Transceiver Station

BSC Base Station Controller

BSS Base Station Subsystem

C

CC Control Channel

CCH Common Channel

CCPM Compact-BTS Channel Process Module

CDM Code Division Multiplex

CDMA Code Division Multiple Access

CDDU Compact-BTS Dual Duplexer Unit

CE Channel Element

CECM Compact-BTS EV-DO Channel Module



CFMM Compact-BTS Fan Monitor Module

CHPA Compact-BTS High power Amplifier

CIFM Compact-BTS Intermediate Frequency Module

CMTR Compact-BTS Multi-channel Transceiver module

CMPA Compact-BTS Multi-channel Power Amplifier

CN Core Network

CPBM Compact-BTS Power Backplane Module

CPU Central Processing Unit

CRCM Compact-BTS Radio Up-Down Convert Module

CSLM Compact-BTS Serial port Lightning proof Module

CTBM Compact-BTS Transceiver Backplane Module

CTRM Compact-BTS Transceiver Module

D

DC Direct Current

DRC Data Rate Control

E

EAC Environment Alarm Chest

EIA Electronics Industry Association

EIB Erasure Indicator Bit

F

F-CCCH Forward Common Control Channel

F-DCCH Forward Dedicated Control Channel

FER Frame Error Rate

F-FCH Forward Fundamental Channel

F-PCH Forward Paging Channel

FPGA Field Programmable Gate Array

F-PICH Forward Pilot Channel

F-QPCH Forward Quick Paging Channel

F-SCH Forward Supplemental Channel

F-SYNCH Forward Synchronization Channel



G

GLONASS Global Navigation Satellite System

GMSC Gateway Mobile Switching Center

GPS Global Positioning System

GSM Global System for Mobile Communications

H

HA Home Agent

HLR Home Location Register

HPCM High Precision Clock Module

HPSK Hybrid Phase Shift Keying

I

IMA Inverse Multiplexing on ATM

IPoA IP over ATM

IS Interim Standard

ISDN Integrated Services Digital Network

L

LAN Local Area Network

LMT Local Maintenance Terminal

LNA Low Noise Amplifier

M

MAC Media Access Control

MIP Mobile Internet Protocol

MML Man-Machine Language

MS Mobile Station

MSC Mobile Switching Center

MTBF Mean Time Between Failures

MTTR Mean Time To Repair



N

NE Network Element

O

ODU OutDoor Unit

OMC Operation and Maintenance Center

OML Operation and Maintenance Link

P

PCF Packet Control Function

PDA Personal Digital Assistant

PDSN Packet Data Serving Node

PER Packet Error Rate

PGND Protection Ground

PLMN Public Land Mobile Network

PMRM Power Measurement Report Message

PMU Power Management Unit

PP2S Pulses Per 2 Seconds

ppm Parts Per Million

PPP Peer-Peer Protocol

PSK Phase Shift Keying

PSTN Public Switched Telephone Network

PSU Power Supply Unit

PSUAC/DC AC/DC power supply unit

PSUDC/DC DC/DC power supply unit

PTT Push To Talk

Q

QAM Quadrature Amplitude Modulation

QoS Quality of Service

QPSK Quadrature Phase Shift Keying



R

RA Reverse Activity

RAB Reverse Activity Bit

R-ACH Reverse Access Channel

RC Radio Configuration

R-DCCH Reverse Dedicated Control Channel

R-EACH Reverse Enhanced Access Channel

RF Radio Frequency

R-FCH Reverse Fundamental Channel

RLDU Receive LNA Distribution Unit

R-P Radio-Packet

RPC Reverse Power Control

RRI Reverse Rate Indicator

R-SCH Reverse Supplemental Channel

S

SDH Synchronous Digital Hierarchy

T

TDM Time Division Multiplex

TIA Telecommunications Industry Association

U

UNI User Network Interface

W

WAN Wide Area Network

137332842-huawei-bts3606a-v200r003

Documents

huawei cdma2000 1x1xev

system status monitoring

networking interfaces

networking modes

flexible networking

site monitoring

mobile network solution

rf port