9100 BTS Product Description Ed32rel

Alcatel-Lucent

9100 Base Station

Product Description

_________________________________________________________________________________________

Document Number: 3DC 21083 0001 TQZZA Document Issue: 32 Document Status: released Date of Issue: December 2012 _________________________________________________________________________________________

9100 BASE STATION PRODUCT DESCRIPTION DECEMBER 2012

Document Number: 3DC 21083 0001 TQZZA Document Issue: 32 Document Status: released

Alcatel-Lucent Proprietary

See Notice on Page 2 2 / 67

Copyright 2012 by Alcatel Lucent Technologies. All Rights Reserved.

About Alcatel-Lucent

Alcatel Lucent (Euronext Paris and NYSE: ALU) provides solutions that enable service

providers, enterprises and governments worldwide, to deliver voice, data and video

communication services to end-users. As a leader in fixed, mobile and converged broadband

networking, IP technologies, applications, and services, Alcatel-Lucent offers the end-to-end

solutions that enable compelling communications services for people at home, at work and on

the move. For more information, visit Alcatel-Lucent on the Internet: http://www.alcatel-

lucent.com

Notice

The information contained in this document is subject to change without notice. At the time

of publication, it reflects the latest information on Alcatel-Lucents offer, however, our

policy of continuing development may result in improvement or change to the specifications

described.

Trademarks

The following trademarks are used throughout this document:

Alcatel Lucent, Alcatel, Lucent Technologies and their respective logos are trademarks and

service marks of Alcatel-Lucent, Alcatel and Lucent Technologies.





CONTENTS

1 INTRODUCTION .................................................................... 7

1.1 Overview ...................................................................................... 7

1.2 Scope of this Document .................................................................... 7

2 9100 BASE STATION OVERVIEW ................................................ 8

2.1 Overview ...................................................................................... 8

2.2 Overall architecture ........................................................................ 9

3 9100 BASE STATION - MODULES DESCRIPTION ............................. 10

3.1 Antenna coupling Level .................................................................. 10

3.1.1 Antenna Network Combiner (ANC) module ......................................... 10

3.1.2 Antenna Network Duplexer (AND) module .......................................... 13

3.1.3 Antenna Network type Y (ANY) ....................................................... 14

3.2 Transceiver (TRX) level .................................................................. 14

3.2.1 MC-TRX module .......................................................................... 15 3.2.1.1 MC-TRX principle 15

3.2.1.2 Key benefits of MC technology 16

3.2.1.3 MC-TRX characteristics 17

3.2.2 TWIN-TRX module ....................................................................... 18 3.2.2.1 TWIN-TRX characteristics 18

3.3 BCF level - Station Unit Module (SUM) ................................................ 19 3.3.1.1 SUMX characteristics 20

4 9100 BASE STATION - CABINETS DESCRIPTION ............................ 21

4.1 General ...................................................................................... 21

4.1.1 Subrack of cabinets ..................................................................... 21

4.2 Indoor cabinets ............................................................................ 22

4.2.1 MBI5 (Multi-Standard Base-Station Indoor) .......................................... 22

4.2.2 MBI3 (Multi-Standard Base-Station Indoor) .......................................... 24

4.2.3 CBIE (Compact Base-Station Indoor Evolution) ..................................... 25

4.3 Outdoor cabinets .......................................................................... 25

4.3.1 MBO2E (Multi-Standard Base-Station Outdoor Evolution) ......................... 26

4.3.2 MBO1E (Multi-Standard Base-Station Outdoor Evolution) ......................... 28

4.3.3 CBO (Compact Base-Station Outdoor) ............................................... 29

4.3.4 CBOE (Compact Base-Station Outdoor Evolution) .................................. 31

5 9100 BTS PODUCT RANGE AND CONFIGURATIONS ........................ 32

5.1 BTS configurations overview ............................................................ 32

5.1.1 Monoband configurations with MC-TRX .............................................. 33

5.1.2 Monoband configurations with TWIN-TRX ........................................... 34

5.1.3 Multiband configurations with TWIN-TRX ........................................... 35

5.2 BTS configurations detail characteristics ............................................. 35

5.2.1 Standard configurations ................................................................ 35

5.2.2 Low-Loss configurations ................................................................ 36

5.2.3 Multiband configurations .............................................................. 36

5.2.4 Configuration built with several cabinets ........................................... 37

5.2.5 Extended cell configurations .......................................................... 37

5.3 Tower Mounted Amplifier (TMA) ....................................................... 38

5.4 TX output power at antenna connector .............................................. 40





6 MAIN FEATURES AND CHARACTERISTICS .................................... 41

6.1 Radio - Telecom - Transmission ........................................................ 41

6.1.1 Nominal RF performances ............................................................. 41 6.1.1.1 Frequency bands 41

6.1.1.2 Speech Codecs 41

6.1.1.3 Ciphering algorithms 41

6.1.1.4 TRX modules 41

6.1.1.5 RX sensitivity of TRX 41

6.1.1.6 Multiband capabilities 42

6.1.1.7 Synthesizer frequency hopping 42

6.1.1.8 Power control 42

6.1.1.9 Synchronization 42

6.1.1.10 Transmission 42

6.1.1.11 Microwave integration 43

6.1.2 TX Diversity (Coverage mode) ........................................................ 43

6.1.3 RX Diversity .............................................................................. 44

6.1.4 4 RX Diversity ............................................................................ 44

6.2 Operation and maintenance ............................................................ 45

6.2.1 General ................................................................................... 45 6.2.1.1 Station unit sharing 45

6.2.1.2 Recovering - initiating 45

6.2.1.3 Automatic shutdown 46

6.2.1.4 Unbalanced losses/powers detection and regulation 46

6.2.1.5 Auto-identification 46

6.2.1.6 Commissioning tests 46

6.2.1.7 Software migration 47

6.2.1.8 Firmware downloading 47

6.2.2 Battery backup .......................................................................... 47

6.2.3 External alarms .......................................................................... 47

6.2.4 Temperature control ................................................................... 47 6.2.4.1 Heating units 48

6.2.4.2 Heat exchangers (HEX) 48

6.2.4.3 Direct Air Cooling (DAC) 48

7 ENVIRONMENTAL AND EMC ASPECTS ........................................ 49

7.1 Environmental conditions ............................................................... 49

7.1.1 Environmental conditions for operation and storage.............................. 49 7.1.1.1 Climatic conditions (operation, storage) 49

7.1.1.2 Mechanical conditions (operation, storage) 50

7.1.2 Environmental conditions for transportation ....................................... 52 7.1.2.1 Climatic conditions (transport) 52

7.1.2.2 Mechanical conditions (transport) 52

7.2 Electromagnetic Compatibility (EMC) ................................................. 53

7.3 Acoustic noise .............................................................................. 53

7.4 Safety ........................................................................................ 53

7.5 Product Environmental Attributes ..................................................... 54

7.5.1 Materials .................................................................................. 54

7.5.2 Disassembly .............................................................................. 54

7.5.3 Batteries .................................................................................. 54

7.5.4 Product packaging ...................................................................... 55

7.5.5 Take back information ................................................................. 55

7.5.6 Documentation .......................................................................... 55

8 POWER CONSUMPTION, BACKUP TIMES AND POWER DISSIPATION ..... 56

8.1 Introduction ................................................................................ 56

8.2 Power consumptions ...................................................................... 57

8.2.1 Conditions used for calculations are the following: ............................... 57





8.2.2 Activation of features: ................................................................. 58 8.2.2.1 Downlink Power Control (15 26 30 B2) 58

8.2.2.2 Downlink Discontinuous Transmission (15 24 60 B2) 58

8.2.2.3 Dynamic Power Save (15 02 92 - B11 Option) 58

8.2.2.4 Multi-band cell (15 52 50 - B6.2 Option) 59

8.2.2.5 Others 59

8.2.3 Average daily traffic load .............................................................. 59

8.2.4 Example of Power consumptions for Configuration with MC-TRX ............... 60

8.3 Backup times ............................................................................... 61

8.4 Power dissipation ......................................................................... 62

8.4.1 Power dissipation of modules other than TRX ...................................... 63

8.4.2 Power dissipation of TRX modules ................................................... 63

9 RELIABILITY AND AVAILABILITY ............................................... 64

10 APPENDICES ....................................................................... 65

10.1 Appendix A: Related Reading ........................................................... 65

10.1.1 Applicable Documents .................................................................. 65

10.1.2 Reference Documents .................................................................. 66

10.2 Appendix B: Acronyms ................................................................... 67

LIST OF FIGURES Figure 1 : Overall 9100 Base Station architecture ........................................................................... 9

Figure 2 : ANC module ........................................................................................................... 10

Figure 3 : ANC - No-combining mode & No TX Div mode ................................................................... 12

Figure 4 : ANC - Combining mode & No TX Div mode ....................................................................... 12

Figure 5 : AND module .......................................................................................................... 13

Figure 6 : AND principle ......................................................................................................... 13

Figure 7 : ANY module ........................................................................................................... 14

Figure 8 : ANY principle ......................................................................................................... 14

Figure 9 : MC-TRX Antenna Network connection ............................................................................ 15

Figure 10 : MC-TRX capabilities ................................................................................................ 16

Figure 11 : MC-TRX module ..................................................................................................... 17

Figure 12 : TWIN-RX module .................................................................................................... 18

Figure 13 : SUMX variants ....................................................................................................... 20

Figure 14 : 9100 BTS subrack ................................................................................................... 21

Figure 15 : MBI5 .................................................................................................................. 22

Figure 16 : MBI3 .................................................................................................................. 24

Figure 17 : MBO2E ................................................................................................................ 26

Figure 18 : MBO1E ................................................................................................................ 28

Figure 19 : CBO ................................................................................................................... 29

Figure 20 : CBOE / CBIE ......................................................................................................... 31

Figure 21 : Standard configurations with TWIN-TRX in No TX Div ........................................................ 36

Figure 22 : Low-loss configurations for TWIN-TRX in No TX Div ........................................................... 36

Figure 23 : Extended cell principle ............................................................................................ 38

Figure 24 : Principles of tower-mounted amplification .................................................................... 39

Figure 25: TWIN-TRX module in TX Div & 4 RX div .......................................................................... 45

Figure 26 : Western Europe Case - Average Cell Load over 24 hours .................................................... 56

Figure 27 : Influence of DL PC on TRX Power consumption ............................................................... 58

Figure 28 : Backup time with BU90 batteries ................................................................................ 62





LIST OF TABLES Table 1 : MC-TRX basic characteristics ....................................................................................... 17

Table 2 : TX output Power for MC-TRX at module level ................................................................... 17

Table 3 : TWIN-TRX basic characteristics .................................................................................... 19

Table 4 : TX output Power for TWIN-TRX at module level ................................................................. 19

Table 5 : SUMX basic characteristics .......................................................................................... 20

Table 6 : MBI5 basic characteristics ........................................................................................... 23

Table 7 : MBI3 basic characteristics ........................................................................................... 24

Table 8 : MBO2E basic characteristics ........................................................................................ 27

Table 9 : MBO1E basic characteristics ........................................................................................ 29

Table 10 : CBO basic characteristics .......................................................................................... 30

Table 11 : CBOE/CBIE basic characteristics .................................................................................. 31

Table 12 : Monoband configurations with MC-TRX .......................................................................... 33

Table 13 : Monoband configurations with TWIN-TRX ....................................................................... 34

Table 14 : Multiband configurations with TWIN-TRX ....................................................................... 35

Table 15 : TX modules and cables losses ..................................................................................... 40

Table 16 : TX diversity gain .................................................................................................... 43

Table 17 : 2RX diversity gain ................................................................................................... 44

Table 18 : 4RX diversity gain ................................................................................................... 45

Table 19 : Climate type and Heating Units .................................................................................. 48

Table 20 : Environmental conditions specifications ........................................................................ 49

Table 21 : Climatic conditions (operation, storage) ........................................................................ 50

Table 22 : Extended High Air Temperature (operation) ................................................................... 50

Table 23 : Mechanically substances (operation, storage) .................................................................. 50

Table 24 : Mechanically parameter (operation, storage) .................................................................. 51

Table 25 : Earthquake test conditions ........................................................................................ 51

Table 26 : Climatic conditions (transport) ................................................................................... 52

Table 27 : Mechanical substances (transport) ............................................................................... 52

Table 28 : Mechanical conditions (transport) ................................................................................ 53

Table 29 : Example configurations with and without DPS ................................................................. 60

Table 30 : Cabinet power consumption (including SUM) ................................................................... 60

Table 31 : Cabinet power consumption (including SUM) with MC-TRX900, with DL PC and DL DTX ................ 60

Table 32 : Cabinet power consumption (including SUM) with MC-TRX900, with DL PC and without DL DTX ..... 61

Table 33 : Power dissipation example ........................................................................................ 63

Table 34 : System unavailability and downtime ............................................................................. 64





1 INTRODUCTION

1.1 Overview

This document provides an overview and describes the characteristics of the 9100 Base Station

product range from Alcatel Lucent.

Alcatel Lucent reserves the right to change the technical specifications without notice until General

Availability of the product. For more information on features availability, please refer to the

Product Bulletins, Feature Planning Guides, Baseline and Release Notes.

1.2 Scope of this Document

The scope of this document is the Product Description for Alcatel Lucent 9100 Base Station (GSM)

with Indoor Cabinets (MBI3, MBI5 and CBIE) and Outdoor Cabinets (MBO1E, MBO2E, CBO and CBOE)

covering SUMX, MC-TRX, TWIN-TRX, Single-TRX, Antenna Network and Combiner.

Present edition refers only to the products that are commercially available at the time of release of

the document; products (cabinets, modules) of older generation are not mentioned except when

applicable; for description of these equipment of older generation (e.g. of the radio modules, that

are still compatible with most recent cabinets and can be used in conjunction with recent radio

modules), reader is invited to refer to earlier editions of present document.





2 9100 BASE STATION OVERVIEW

2.1 Overview

The 9100 Base Station range is designed to ensure an outstanding quality of service through very

high radio performances and minimum service interruption, and to facilitate all kinds of evolutions:

Site extension or sectorization, implementation of future features by software download only,

evolution from coverage to capacity mode, IP based transmission. In addition, special attention was

given to ease of deployment and maintenance. The use of highly integrated modules and state-of-

the-art components results in very high compactness and reliability.

The highlights of 9100 Base Stations are:

Outstanding quality of service due to

- Very high radio performances, in particular

- Guaranteed receive sensitivity, -112 dBm with MC-TRX, is far beyond the GSM

requirement

- Best-in-class coverage solutions (TWIN-TRX with TX diversity, 4Rx diversity, low-loss

configurations, High Power TRX) offer various ways of maximizing coverage of

existing or new sites

- Radio (synthesized) frequency hopping, antenna hopping, synchronized network and

antenna diversity may be used to improve spectrum efficiency

- Very high capacity, with up to 9 MC-TRX modules in MBI5 & MBO2 Evolution

cabinets, each MC-TRX being capable of 6 GSM carriers in 900 or 1800 band, or W-

CDMA carriers (900 MHz) or LTE carriers (1800 carriers), please refer to [R1] for

more information about Multi-Technology solutions

- Minimum service interruption

- Very high BTS availability due to both high module reliability and system

architecture

- Optimized software release migration thanks to the 9100 Base Station capability to

be pre-loaded and to store simultaneously two software versions

High flexibility

- Wide possibilities of extensions and sectorization can be performed within the same

cabinet, e.g. the MBO2 Evolution and MBI5 cabinets can accommodate up to 9

sectors (3 sectors x 3 bands) with a total capacity of 9 RF modules (for 9 sectors the

antenna extension kit is necessary)

- Outdoor cabinets modularity provides flexibility for hosting extra optional

equipment (transmission, batteries, etc.)

- Same cabinet and system architecture for GSM 850, GSM 900, GSM 1800 and GSM

1900; 9100 Base Station product range includes mixed configurations (e.g. GSM 900,

W-CDMA 900 and GSM 1800 within the same cabinet)

- High modularity, with a highly reduced set of modules and a common interface

- Large panel of configurations matching every customer needs, in particular

possibility to use TWIN-TRX in capacity or coverage mode with remote switching

between both modes that does not require site visits

Ease of deployment and site interventions

- High compactness

- Outdoor cabinets extension principle allows an easy site installation

- Comprehensive set of self-tests





- Minimum maintenance space necessary due to front access only

Future proof

- Ready for future features, e.g. GERAN Evolutions, thanks to a software-download

based evolution strategy

- Supports IP transport

- Support of W-CDMA and LTE: the MBI5 and MBO2 Evolution cabinets allow mixed

configurations with dual band GSM and dual band W-CDMA (for details see [R1], [R3]

and [R4])

2.2 Overall architecture

The 9100 Base Station is based on a three-level modular architecture, consisting of:

Antenna coupling level,

Transceiver (TRX) level,

Base station Control Function (BCF) level,

For which a reduced set of very highly integrated modules was developed.

The information flow between the Air interface and the A-bis interface is presented below.

Figure 1 : Overall 9100 Base Station architecture





3 9100 BASE STATION - MODULES DESCRIPTION

3.1 Antenna coupling Level

The antenna coupling level is the stage between the antennas and the TRX level; it handles the

combining functions as well as the interface with the antennas.

With TWIN-TRX, a single Antenna Network module performs these functions for up to 2 or up to 4

TRX, depending on its type AND (Antenna Network Duplexer) or ANC (Antenna Network Combiner).

For configurations of higher capacity, a Combiner stage can be added (or MC-TRX is used instead of

TWIN-TRX). Thanks to the Antenna Network flexibility and to this modular building, the antenna

coupling level can be adapted to a wide range of requirements (reduction of attenuation losses,

minimization of the number of antennas).

With MC-TRX, no combining is required, making AND module best suited for configurations with MC-

TRX modules.

The general functions performed at this level are:

Duplex transmit and receive paths onto common antennas

Feeding the received signals from the antenna to the receiver front end, where the signals

are amplified and distributed to the different receivers (Low Noise Amplifier (LNA) and

power splitter functions)

Providing filtering for the transmit and the receive paths

Combining, if necessary, output signals of different transmitters and connecting them to the

antenna(s)

Supervising antennas VSWR (Voltage Standing Wave Ratio)

Powering and supervising TMA through the feeder

Some of those functions are only available in a given type or a given version of the modules, as

described in more details in following chapters.

For those modules that include combiners (ANC), the hybrid Wide-band combining technique is

used, since it avoids tuning problems and is more reliable compared to remotely tuneable cavities.

Moreover it is compatible with the Synthesized Frequency Hopping (SFH).

Each sector is equipped with at least one such ANC or AND stage, which features very high

sensitivity reception, low attenuation, and minimum inter-modulation products.

3.1.1 Antenna Network Combiner (ANC) module

Figure 2 : ANC module





The Antenna Network Combiner module connects up to four transmits signals to two antennas, and

distributes the received signals from each antenna to up to four receivers (for the normal and the

diversity reception). This module includes twice the same structure, each structure containing:

One duplexer allowing a single antenna to be used for the transmission and reception of

both downlink and uplink channels- hence minimizing the number of antenna

A frequency selective VSWR meter to monitor antenna feeder and antenna

One LNA amplifying the receive RF signal, and giving good VSWR values, noise compression

and good reliability

Two splitter levels distributing the received signal to four separate outputs so that each

output receives the signal from its dedicated antenna and from the second one (diversity)

One Wide Band Combiner (WBC), concentrating two transmitter outputs into one, only for

configurations with more than two TRX

Insertion of 12V DC current in the feeder in order to provide power to TMA when TMA are

used; there is thus no need for separate Power Distribution Unit (PDU) nor Bias-Tee (Feeder

Lightning protections, that come with the ANC in case of outdoor BTS, are themselves of a

new type, compatible with this DC power feeding) (This function is only available with the

new Evolution version of this module; it can be disabled, even if TMA are used, in case

those TMA have their own PDU).

Except when explicitly mentioned, present edition considers only the new Evolution version of this

module, which is equivalent from a functional point of view to the previous one with the following

improvements:

Reduced module size (1/4th of a subrack instead of 1/3rd)

Powering and supervision of TMA through the antenna feeders,

New "Snap N connectors" on the TRX side (faster and more secure connection, with

compatibility with exiting cables as well as with new cables themselves equipped with "Snap

N connectors"

ANC of different generations can be mixed in the same cabinet and even in same sector and can

also be used either with the MC-TRX module, TWIN-TRX module or with any previous TRX

generation.

The ANC can be manually configured (on site) in two modes depending on the number of TRX in the

sector and on the mode in which the TWIN-TRX module is used:

The No-combining mode for configuration up to 2 TRX if TX Diversity is not used, or up to one TRX if TX Diversity is used (two TRX ports must then be connected to the two Antenna

Connector ports of a same TWIN-TRX module); in these cases, the Wide Band Combiner is

not needed, usage of Antenna network Module w/o combiner stage (AND) or in case of

Antenna network Module within Combiner stage the bypassed mode as shown in the figure

below:





Antenna A

TXA -

RXA -

RXdivB

Splitter WBC

TRX 1 TX

RXn

RXd

TRX 2 TX

RXn

RXd

Splitter

Splitter

LNA

Duplexer

Filter Filter

Splitter Splitter WBC

Antenna B

TXB-

RXB -

RXdivA

Duplexer

Filter Filter

Splitter

LNA

By-pass function By-pass function

Figure 3 : ANC - No-combining mode & No TX Div mode

The Combining mode for configuration from 3 up to 4 TRX if TX Diversity is not used, or up to 2 TRX if TX Diversity is used (two TRX ports must then be connected to the two Antenna

Connector ports of a same TWIN-TRX module); in these cases, the Wide Band combiner is

not bypassed, as shown in the figure below:

Antenna A

TXA -

RXA -

RXdivB

Splitter WBC

TRX 1

TX

RXn

RXd

TRX 4

TX

RXn

RXd

Splitter

Splitter

LNA

Duplexer

Filter Filter

Splitter Splitter WBC

Antenna B

TXB-

RXB -

RXdivA

Duplexer

Filter Filter

Splitter

LNA

TRX 2

TX

RXn

RXd

TRX 3

TX

RXn

RXd

Figure 4 : ANC - Combining mode & No TX Div mode





3.1.2 Antenna Network Duplexer (AND) module

Figure 5 : AND module

The Antenna Network Duplexer (AND) module connects up to two transmits signals to two antennas,

and distributes the received signals from each antenna to up to two receivers. The internal

architecture of the Antenna Network Duplexer corresponds to the architecture of the Antenna

Network Combiner (ANC) without the Combining Stage. Like the ANC, it comprises twice the same

structure, each structure containing: one duplexer, a frequency selective VSWR meter, one LNA and

insertion of 12V DC current in the feeder in order to provide power to TMA when TMA are used.

Compared to the ANC module, the AND has a reduced size of 1/6th of a subrack instead of 1/4th.

Figure 6 : AND principle





3.1.3 Antenna Network type Y (ANY)

Figure 7 : ANY module

The Antenna Network type Y has two Wide Band Combiner (WBC) and is able to combining two

times two transmit signals to one output. The function is equal to the WBC function of the ANC.

The ANY is used as an additional combining stage in front of the ANC for configuration with more

than 4 TRX. Therefore it is possible with one ANC and one ANY to handle 5-6 TRX and with one ANC

and two ANY 7-8 TRX.

Figure 8 : ANY principle

Compared to the ANC module, the ANY has a reduced size of less than 1/6th of a subrack instead of

1/4th.

3.2 Transceiver (TRX) level

The transceiver (TRX) level covers GSM 850, GSM 900, GSM 1800 and GSM 1900 functionalities,

including full rate, half rate, enhanced full rate, adaptive multi rate, GPRS/EDGE, antenna

diversity, radio frequency hopping (synthesized hopping),different ciphering algorithms and ready

for VAMOS functionality.

Present edition considers only the new TWIN-TRX and MC-TRX modules.





3.2.1 MC-TRX module

3.2.1.1 MC-TRX principle

In a classical GSM BTS, each carrier is amplified separately. The common GSM BTS installation

consists usually of two antennas per sector for Rx diversity. In cells with more than two TRX,

carriers need to be combined before being transmitted via one of the two antennas. This combining

results in big power losses (To combine two carriers to one single antenna needs one stage of

combining which results in a loss of at least 3 dB, i.e. 50% of the power is lost).

The MC-TRX (Multi Carrier TRX) aims to overcome the power loss in combiner stages. Within a Multi

Carrier Power Amplifier, the carriers are combined before being converted to an analogue signal.

The analogue signal (the total of several carriers) is then amplified through one single PA. One

single TX path out of the amplifier module contains already several GSM carriers and does not need

to be combined anymore.

This amplified signal is then transmitted through one antenna.

AntennaNetwork

2x 16W GSM

TRX 1x 45Wcable,

combiner & insertion

loss

4.5dB

2x 16W GSM

4.5dB

TRX 1x 45W

TRX 1x 45W

TRX 1x 45W

4x 16W GSM

4 carrier 22W

MC-TRX1.3 dB

cable & insertion

loss

Antenna

Network

Figure 9 : MC-TRX Antenna Network connection

The figure above shows one BTS sector: Left side conventional approach, right side uses MC-TRX to

reach the same result

The conventional approach via single carrier power amplifier needs 4x45W=180W of RF

output power on the module side to provide 4 GSM carrier in one sector. Due to the loss in

the necessary wideband combiner the antenna input is 2x2x16W=64W of RF power in this

sector

To reach the same result a MC-TRX needs 4x22W=88W of RF output power on the module

side. Because there is no combining needed the desired RF output power of 4x16W=64W is

also reached. To be noted that 4x16W are achieved without activation of "Power

Overbooking" (DPA) feature

The new Multi Carrier approach needs 180W-88W=92W less RF power to be transmitted to

reach exactly the same result. Assuming a certain efficiency of the power amplifier the BTS

is consuming far less electricity because it has to generate 92W less of RF power per sector





3.2.1.2 Key benefits of MC technology

The Multi Carrier technology brings a great flexibility and provides new exciting possibilities:

Due to the de facto removal of wideband combining of GSM carriers in the path to the

antenna the overall power efficiency of a GSM BTS is increased. Radio power is simply not

lost in the combiner stages anymore.

Dynamic Power Voltage Adjustment (DPVA): With the Multi Carrier Modules Alcatel-Lucent

introduces a new technique to further reduce the power consumption. Normally a power

amplifier is designed for the highest output power requested. The amplifier gets here a

certain supply voltage where it is by design most efficient. A standard amplifier design

provides only one supply voltage. But in most of the cases the amplifier is used in partly or

even low load conditions where the amplifier is visibly less efficient and consumes more

power than necessary. Alcatel-Lucent provides therefore a new innovative technique to

enhance the amplifier efficiency also in low traffic situations. The power supply for the

amplifier is switchable and provides the best supply voltage for the PA depending on the

load conditions in the specific timeslot. From one GSM timeslot to the next this voltage is

adapted and keeps the amplifier always in the best efficiency range and therefore reduces

the power consumption of the amplifier.

The Multi Carrier technology allows the overbooking (DPA - Dynamic Power Allocation) of

the physical resource amplifier. Depending on the number of carriers configured on one

module a statistical gain can be realized. This gain is due to the fact that not all mobiles

are located on the edge of a cell. Radio power not used in a timeslot for a mobile close to

the BTS can be used to extend the range of another mobile on the cell edge on the same

timeslot but other carrier. So it is possible to either increase the corresponding cell size or

to increase the number of carrier used on the MC-TRX.

It is possible to emit GSM alone, another radio technology alone or even two radio

technologies simultaneously, e.g. GSM + WCDMA or GSM + LTE. This allows a smooth

introduction and transition to the next radio technology of choice.

A module provides a certain amount of physical output power. This power may be

distributed over a high number of carriers to provide capacity, focused on a less number of

carriers with higher power per carrier to provide coverage.

The MC-TRX allows the usage of two different radio technologies in parallel. This means the

physically available radio power can be shared e.g. between GSM and WCDMA or GSM and

LTE. It allows the smooth transition from one radio technology to another.

4 GSM carriers 2 GSM carriers 1 GSM carrier + 1 UMTS carrier4 GSM carriers 2 GSM carriers 1 GSM carrier + 1 UMTS carrier

Figure 10 : MC-TRX capabilities

Figure above shows examples of MC-TRX capabilities

The MC-TRX technology is available first in the 900 and 1800 MHz GSM band. The Instantaneous

Bandwidth (IBW) of the MC-TRX is 20 MHz.





3.2.1.3 MC-TRX characteristics

Figure 11 : MC-TRX module

The basic characteristics of the MC-TRX are shown in the table below:

MC-TRX 900 MC-TRX 1800

Working frequency bands (uplink /

downlink)

880-915 MHz / 925-960 MHz 1710-1785 / 1805-1880 MHz

Dimensions (HxWxD) 265 x 106 x 298 mm, pluggable in BTS subrack

(1/4 width of a BTS subrack)

Weight 7,3 kg

Instantaneous bandwidth (IBW) 20 MHz

Output power at module level 1x 90 W up to 6x 11 W (details see below)

Single branch RX sensitivity -112 dBm (for whole BTS down to -117 dBm, see next chapters)

Power supply DC -48V directly supported by cabinet power supply

Table 1 : MC-TRX basic characteristics

TX output Power for MC-TRX at module level, per GSM Carrier (logical TRX):

GSM

Carriers

(logical

TRX)

GSMK Output

Power

GSMK Output

Power

with low

overbooking

(DPA) Note

GSMK Output

Power

with high

overbooking

(DPA) Note

8 PSK Output

Power

1 Carrier 90W 90W 90W 60W

2 Carriers 45W 45W 45W 30W





Table 2 : TX output Power for MC-TRX at module level

Note: Assumes the module carries the BCCH and overbooking (DPA)





3.2.2 TWIN-TRX module

The TWIN-TRX module is an ultra-compact TRX module that can be used in configurations in all

generations of BTS cabinets and can be mixed with TRX of previous generations. The twin TRX

module contains the functionality of up to 2 TRX and has the same size as a single TRX module of

the previous generation.

The TWIN-TRX can work in two modes:

"No TX Diversity", or "Capacity" mode: in this mode, two TRX (2 x 8 radio TS) are used in the

twin module. The two TRX can be connected to different Antenna Networks belonging to

different sectors (TWIN-TRX sharing).

"TX Diversity" or "Coverage" mode: in this mode, one TRX (8 radio TS) is used in the twin

module, with TX Diversity function: the two branches of the twin module send the same

signal, with an optimized time delay between both signals. Thanks to on-air combining and

diversity gain, this mode is equivalent to a very high TX power (up to 175 W in dense urban

and GSM 900, assuming a diversity gain of 2.9 dB). For the uplink path, either 2-way

(optionally with TMA) or 4-way Receive Diversity can be used in order to balance the link

budget.

The TWIN-TRX module is a product evolution that corresponds to two different strategies in the

quest for profitability:

Reducing the cost of each BTS site: As the TWIN-TRX module brings two TRX for the size of

one previous Single-TRX module, highly compact configurations are possible. These more

compact configurations need less floor space (thus reducing rental cost) and consume less

power.

Decreasing the number of BTS sites necessary: With its best-in-class radio performance and

the very high output power (equivalent to 175 W in GSM 900) when using TX Div, less radio

sites are necessary to obtain the same quality coverage. Using 4RxDiv or 2RxDiv and TMA

may be required in order to balance the link budget.

3.2.2.1 TWIN-TRX characteristics

Figure 12 : TWIN-RX module





The basic characteristics of the TWIN-TRX are shown in the table below:

TWIN-TRX 900 TWIN-TRX 1800 TWIN-TRX 800 TWIN-TRX 1900

Working frequency

bands (uplink /

downlink)

880-915 MHz /

925-960 MHz

1710-1785 /

1805-1880 MHz

824-829 MHz /

869-894 MHz

1850-1910 MHz /

1930-1990 MHz


(1/4 width of a BTS subrack)

Weight 7,3 kg

Output power at

module level

2x 45 W

Single branch RX

sensitivity -111 dBm (for whole BTS down to -117 dBm, see next chapters)

Power supply DC -48V directly supported by cabinet power supply

Table 3 : TWIN-TRX basic characteristics

TX output Power for TWIN-TRX at module level for one functional TRX:

GSM Carriers

(logical=functional TRX)

GSMK

Output

Power

8 PSK

Output

Power

1 Carrier 45W 30W

Table 4 : TX output Power for TWIN-TRX at module level

The TX output powers above are in capacity mode, i.e. each of the functional TRX achieves these

output powers. In coverage mode, i.e. with TX Diversity, a significant extra gain has to be

considered (see "TX Diversity" chapter) thanks to on-air combining and diversity.

3.3 BCF level - Station Unit Module (SUM)

The BCF (Base Station Control Function) level is ensured by the Station Unit Module (SUM), which is

the central unit of the BTS. One Station Unit Module manages several sectors and TRX ("Station Unit

Sharing").

The main base station control functions performed are as follows:

Transmission Termination: Handling the A-bis transmission links, up to four E1 A-bis

interfaces or electrical or optical Gigabit Ethernet link (the number and sort of usable links

depending on used BSS software release and used SUM hardware, see below)

Generating the clocks for all other BTS modules; the clocks can be either synchronized to an

external clock reference - e.g. A-bis link, GPS receiver, another BTS - or generated in a

pure free-run mode by an internal frequency generator; (the use of GPS is depending on

used BSS software and used SUMX hardware, see below)

Ensuring central BTS Operation & Maintenance (O&M) application

- Handling Operation and Maintenance Link (OML) and transmission equipment super-

vision (Qmux) protocols

- Alarm collection

- Controlling the AC/DC function when integrated inside the BTS

- Controlling the battery (capacity, voltage, temperature, charging current) when

integrated inside the BTS





3.3.1.1 SUMX characteristics

Figure 13 : SUMX variants

There are existing different variants of SUMX. These functional variants have different options

allowing additional features. The use of the features depends which BSS software release is used.

The GNC (GSM New Class) option provides additional interfaces for the SUMX

- Two additional E1 interfaces (then up to 4 E1 A-bis connections are possible)

- Optical interfaces (for optical Gigabit Ethernet A-bis connection)

- Additional Gigabit Ethernet interface

The GPS option provides an GPS antenna interface for the SUMX

- To synchronize the BTS via the GPS satellite signals.

- This option allows with the corresponding SW feature the highly accurate

synchronization of the BTS and enables BSS features like synchronized network

which could visibly increase the capacity of a GSM network in interference limited

scenarios.

The basic characteristics of the SUMX variants are shown in the table below:

SUMX standard

SUMX with GNC option

SUMX with GPS option

SUMX with GNC & GPS

option


(





4 9100 BASE STATION - CABINETS DESCRIPTION

4.1 General

A common interface for all BTS modules to be plugged in a subrack has been defined. No dedicated

locations within the subrack for each module are pre-assigned. The module location within the BTS

is defined taking into account easy front cabling and optimization of thermal dissipation. Easy

assembly, dismounting and extensions on site is guaranteed.

All active modules have their own integrated power supply. Each basic module supports hot

insertion and extraction. No service interruption is thus necessary during most maintenance

interventions.

A connection area is provided on the top of the indoor cabinet so as to link all external connections

to the BTS (A-bis, power supply, external alarms, etc.).

The BTS cabinets have been designed in such a way, that an easy disassembling for recycling is

possible. All modules are fixed in the sub-racks with Cam-Locks, which can be fastened and

unfastened very quickly without need for specific tools.

To fulfil strong vibration requirements some heavy weight modules in outdoor BTS are additionally

fastened with screws.

Snap-In technology is used as much as possible as e.g. for the fan cassettes, over voltages

protection for data lines and signal inputs for external alarms.

4.1.1 Subrack of cabinets

There is one type of subrack for the different cabinets existing.

Inside the subrack the BTS modules (Antenna Network, Transceiver and Station Unit) are

plugged in, the number and type of modules available to plug in is configuration dependent

The bottom of the subrack can be equipped with plug-in fan stages to ensure module

cooling; the fan speed is controlled by the BTS (SUM) according to the internal BTS

temperature

The subrack has an integral backplane, which provides the electrical and signalling

interface for the modules

Figure 14 : 9100 BTS subrack

There exist two variants of the subrack (see figure above)

standard one for use in all cabinets, but not in CBIE and CBOE





specific one (with half width of standard variant) for use in CBIE and CBOE

4.2 Indoor cabinets

Two types of Multi-Standard Base Station Indoor cabinets (also called racks) are available.

the MBI3 cabinet, with three subracks

the MBI5 cabinet, with a capacity of five subracks

These cabinets are designed for installation back to back or to the wall; installation in rows is

supported. The cabinets have no side doors; the interior can be accessed from the front (all cabling

is also accessible from the front side). MBI3 and MBI5 are two independent cabinets. MBI3 cabinet

cannot then be extended to MBI5 cabinet.

Additional the Compact Base-Station Indoor Evolution (CBIE) is available. The CBIE is the indoor

version of the CBOE (Compact Base Station Outdoor Evolution) and is defined for Rural and Street

coverage with zero footprints.

4.2.1 MBI5 (Multi-Standard Base-Station Indoor)

Figure 15 : MBI5

The MBI5 is available in 3 versions

in 5 subracks version (MBI5)

in 3 subracks version (MBI53)

as shared BTS, hosting 2 BTS inside (MBI5S)





The MBI5 cabinet can host GSM or W-CDMA modules or both together, thereby allowing a very cost-

effective introduction of W-CDMA, i.e. without impact on site engineering.

As shared BTS (MBI5S), the MBI5 cabinet can host 2 GSM BTS inside one cabinet. Such a shared

solution with standard modules allows a very cost-effective introduction of two GSM BTS in one MBI5

cabinet. All common cabinet parts are then managed by the 1st BTS via OMC reporting (e.g.

external alarms).

The basic characteristics of the MBI5 variants are shown in the table below:

MBI5 MBI53 MBI5S

Depth 45 cm

High 194 cm

Width 60 cm

Wight 130 kg

Power supply DC: -48V (40.5 to 57 V nominal service voltage)

(-60V possible)

Number of subracks 5 3 5

Antenna connectors 12 (18 with extension kit)

(6 or 9 sectors)

External alarms 16

Mounting floor

Protection Level IP 20

Table 6 : MBI5 basic characteristics

New optimised version equipped with 3 subracks, but extendable to 5 subracks through a kit

containing the corresponding subracks and fans.

This provides a cost optimized solution for initial deployment of networks, when most

configurations are still with at most 3x4 carriers; at the same time, it lets open the possibility at

any time, through the appropriate kit, to add the two subracks and have access to the full range of

configurations up to 3x8 carriers: investment in the needed subracks is only made when and where

it is needed.


supported.

The cabinets have no side doors; the interior can be accessed from the front (all cabling is also

accessible from the front side).

The MBI3 and MBI5 9100 Base Station cabinets have to be fixed (floor fixation or wall fixation).

Levelling feet can be used to compensate uneven surface.





4.2.2 MBI3 (Multi-Standard Base-Station Indoor)

Figure 16 : MBI3

The MBI3 cabinet can host GSM or W-CDMA modules or both together, thereby allowing a very cost-

effective introduction of W-CDMA, i.e. without impact on site engineering.

The basic characteristics of the MBI3 are shown in the table below:

MBI3

Depth 45 cm

High 130 cm

Width 60 cm

Weight 86 kg


(-60V possible)

Number of subracks 3

Antenna connectors 12

(6 sectors)

External alarms 16

Mounting floor


Table 7 : MBI3 basic characteristics


supported.

The cabinets have no side doors; the interior can be accessed from the front (all cabling is also

accessible from the front side).

The MBI3 and MBI5 9100 Base Station cabinets have to be fixed (floor fixation or wall fixation).

Levelling feet can be used to compensate uneven surface.





4.2.3 CBIE (Compact Base-Station Indoor Evolution)

The CBIE (Compact Base Station Indoor Evolution) is the indoor version of the CBOE (Compact Base

Station Outdoor Evolution)

The CBIE is identical to the CBOE, except of the air filter. In CBIE an air filter for indoor

requirements is used. This allows a cost optimized solution for the indoor use of the Compact Base

Station Evolution.

For details and characteristic of Compact Base Station Evolution see chapter for CBOE.

4.3 Outdoor cabinets

Three families of outdoor cabinets are available:

Multi-Standard Base Station Outdoor cabinets (MBO cabinets), that include the MBO1

Evolution and MBO2 Evolution cabinets; they allow a wide variety of configurations, with a

lot of flexibility to extend from one configuration to another or even from the MBO1

Evolution cabinet to the MBO2 Evolution cabinet; as their name imply, they are designed

taking into account the multi-standard context: the same cabinets can be used for GSM or

for W-CDMA applications; and most of those cabinets even allow multi-standard

configurations, i.e. configurations in which radio modules from both GSM and W-CDMA

standards are simultaneously present (in fact, only the MBO1 Evolution, due to its compact

size/ low height does not allow such multi-standard configurations). MBO2 Evolution can

host 2 BTS by left and right part of cabinet, thereby allowing a very cost-effective

introduction of 2GSM BTS called MBO2S

Compact Base Station Outdoor cabinet (CBO) that targets specific applications for which the

number of TRX per cabinet is low (3 transceiver modules), both at installation time and for

a foreseeable future; taking such assumptions in consideration allows to define a very

compact and cost effective cabinet adapted for those situations that are typical of rural

application with very low density of traffic

Compact Base Station Outdoor Evolution (CBOE), an ultra compact lightweight cabinet

which is optimized for smallest footprint and flexible mounting on ground, wall or pole. The

CBOE is suitable for single-sector applications like remote rural sites or low layer cells in

buildings and in dense urban areas. The CBOE supports up to tow sectors for street or

railway coverage. Thanks to the usage of Direct Air Cooling System the CBOE supports an

extended temperature range and allows for low TCO. In addition to the outdoor version, an

indoor version called Compact Base Station Indoor Evolution (CBIE) is available with same

characteristics as the CBOE, except that the filter is adapted to indoor conditions.

The AC version of these cabinets is designed to operate directly from external Alternating Current

(AC) main supplies. This solution avoids the use of external power supply equipment, which is a gain

in term of cost and floor space.

The DC version of these cabinets is designed to operate from external Direct Current (DC) power

supply voltages. This is adapted when external DC source of current is preferred, such as power

supply equipment with rectifiers and batteries or solar panels.





4.3.1 MBO2E (Multi-Standard Base-Station Outdoor Evolution)

Figure 17 : MBO2E

The Multi-Standard Outdoor Base Station cabinet MBO2 Evolution offer operators important

flexibility with:

An easy adaptation on-site from the MBO2 Evolution to MBO2 Evolution Shared BTS

- The MBO2 Evolution shared BTS is obtained by adapting on-site MBO2E to 2 BTS,

which respectively corresponding to left part cabinet and right part cabinet. All

common cabinet parts are managed by the left part BTS via OMC reporting (e.g.

External alarms etc.).

Dedicated space to answer operator needs in power, transmission or other equipment

- up to 2 battery shelves to insert each a 90 Ah battery for backup

- AC/DC power supply (for AC variant of MBO2E)

- 19'' mounting frames (up to 2x 6U and 2x 3U, depending on used battery or power

supply)

One flexible service light provided inside MBO2E

One 220V service socket (to connect e.g. a Personal Computer) is provided inside MBO2E

(AC version)

Several features are optional orderable due to individual operation needs

- Heating Units

- HEX or DAC cooling system

- Water detector

- Smoke detector

- Battery Units

- Plinth (depending on site preparation needs)

- 19'' mounting frames

An easy site installation (or dismantling) due to the cabinets modularity; the most heavy

module weights only 90 kg

A height limited to less than 150cm (without the mounting plinth which is optional): the

constraints of site implementation are thus minimized





One filtered external DC input/output is available to connect either an external battery or

an external DC equipment

- Up to 1000W external DC load are supported if the 6th subrack connector is used to

feed this optional user equipment, in this case only five subracks are available for

GSM application.

7 connectors to power options up to 500 W (e.g. IDU, NTL) inside the cabinet are available

The basic characteristics of the MBO2E are shown in the table below:

MBO2E

Depth 74 cm (80 cm on roof level)

High 146 cm (161 cm with plinth option)

Width 156 cm

Weight 292 kg


AC: 230V single or three phase (187 to 264 normal service voltage, 47 to 63 Hz)


Antenna connectors 16 (18 with extension kit)

(8 or 9 sectors)

External alarms 11 free available (3 from outside cabinet, 8 from inside cabinet)

5 pre equipped (HEX or DAC fan, Door Switch, Key Switch, Smoke Detector, Water Detector)

Mounting ground (optional with plinth)

Cooling HEX or DAC

Options/User space 19 Inch, 3 U up to 18 U high (depending of power type and number

of batteries)

Battery up to 2 branches


Table 8 : MBO2E basic characteristics





4.3.2 MBO1E (Multi-Standard Base-Station Outdoor Evolution)

Figure 18 : MBO1E

The Multi-Standard Outdoor Base Station cabinet MBO2 Evolution offer operators important

flexibility with:

An easy extension on-site from the MBO1E to the MBO2E BTS

- Create a MBO2E by adding at the right side of MBO1E the extension rack (MBOEE)

Dedicated space to answer operator needs in power, transmission or other equipment

- up to 2 battery shelves to insert each a 90 Ah battery for backup

- AC/DC power supply (for AC variant of MBO1E)

- 19'' mounting frames (up to 2x 6U and 1x 3U, depending on used battery or power

supply)

One flexible service light provided inside MBO1E

One 220V service socket (to connect e.g. a Personal Computer) is provided inside MBO1E

(AC version)

Several features are optional orderable due to individual operation needs

- Heating Units

- HEX or DAC cooling system

- Water detector

- Smoke detector

- Battery Units

- Plinth (depending on site preparation needs)

- 19'' mounting frames

An easy site installation (or dismantling) due to the cabinets modularity; the most heavy

module weights only 90 kg

A height limited to less than 150cm (without the mounting plinth which is optional): the

constraints of site implementation are thus minimized

One filtered external DC input/output is available to connect either an external battery or

an external DC equipment

- Up to 1000W external DC load are supported





7 connectors to power options up to 500 W (e.g. IDU, NTL) inside the cabinet are available

The basic characteristics of the MBO1E are shown in the table below:

MBO1E

Depth 74 cm (80 cm on roof level)

High 146 cm (161 cm with plinth option)

Width 94 cm

Weight 188 kg


AC: 230V single or three phase (187 to 264 normal service voltage, 47 to 63 Hz)



(4 Sectors)


5 pre equipped (HEX or DAC fan, Door Switch, Key Switch, Smoke Detector, Water Detector)

Mounting ground (optional with plinth)

Cooling HEX or DAC

Options/User space 19 Inch, up to 15 U high (depending of power type and number of

batteries)

Battery up to 2 branches


Table 9 : MBO1E basic characteristics

4.3.3 CBO (Compact Base-Station Outdoor)

Figure 19 : CBO





The design of the Compact Base Station Outdoor Cabinet (CBO) is an optimization and allowing very

cost effective solutions for rural and road applications with:

a low to medium traffic (not only at the initial network roll-out, but as far as it can be

anticipated, in a longer term)

the need to have service available on large areas, despite low traffic density

The Compact Base Station Outdoor Cabinet (CBO) offer operators important flexibility with:

An area dedicated to 19" additional transmission equipment, with 3U of height is available

One filtered external 48 V DC input/output is available for external options with a power of

up to 500 W

The CBO cabinet is available as DC powered cabinet version. The full capacity for modules requires

DAC air cooling.


CBO

Depth 70 cm

High 90 cm

Width 72 cm

Weight 94 kg




(3 Sectors)


2 pre equipped (HEX or DAC fan, Door Switch)

Mounting ground

Cooling HEX or DAC

Options/User space 19 Inch, 3 U high

Battery no

Protection Level IP55

Table 10 : CBO basic characteristics





4.3.4 CBOE (Compact Base-Station Outdoor Evolution)

Figure 20 : CBOE / CBIE

The CBOE (Compact Base Station Outdoor Evolution) is defined for Rural and Street coverage with

zero footprints. CBOE is used for outdoor installation. Ground, wall, pole or mast mounting is

possible.

For indoor use a variant with a different air inlet filter is available, the CBIE (see also chapter of

CBIE).


CBOE CBIE

Depth 50 cm

High 90 cm

Width 37 cm

Weight 40 kg


AC: 230V single phase (187 to 264 normal service voltage, 47 to 63 Hz)

Number of subracks 2 specific subracks (with half width of standard subrack)


(2 Sectors)


3 pre equipped (DAC fan, Door Switch, Rectifier)

Mounting ground, wall, pole or mast floor, wall

Cooling DAC

Options/User space 19 Inch, 3 U high

Battery no

Protection Level IP55 IP43

Table 11 : CBOE/CBIE basic characteristics





5 9100 BTS PODUCT RANGE AND CONFIGURATIONS

The flexibility of the 9100 Base Station architecture allows building a wide variety of configurations

answering various needs. The purpose of this chapter is to describe them in more details.

The different possible BTS configurations are sorted in families inside which common principles are

shared.

Monoband BTS configurations:

o A single GSM frequency band is used (as opposed to multiband

configurations)

o TWIN-TRX module are in No TX Div or in TX Div mode

- Standard:

o An interface with the antenna system realized through one single ANC

module in each sector (and then through two feeders and two antennas or

one dual-polarized antenna); depending on the configuration, no ANY level

or one ANY level (i.e. two modules) has to be used

- Low-Loss:

o For these configurations, the interface with the antenna system is through

at least two ANC/AND modules in each sector ("air combining")

o This allows to decrease the losses compared to a standard configuration

with the same number of TRX

o Such configurations exist only above 2 TRX per sector

- Extended Cell:

o Two sectors organized in an inner and an outer cell

o Inner cell and outer cell are always Standard configurations

Multiband BTS configurations:

o Combination of two frequency bands (GSM 850 or GSM 900 in one band with

GSM 1800 or GSM 1900 in the other one)

o Within each band, Multiband configurations are of Standard type (as

opposed to Low-Loss) with TWIN-TRX module in No TX Div or in TX Div mode

- Without Multiband Cell:

o some sectors are with TRX of one frequency band, other sectors are with

TRX of the other frequency band

- With Multiband Cell:

o sectors are including TRX with both frequency bands

Multi-Technology BTS configurations:

o Combination of GSM and LTE or WCDMA in one cabinet

o For more information, please refer to [R1]

5.1 BTS configurations overview

In the following chapters some of the possible configurations are described. Additional to

configurations with MC-TRX or TWIN-TRX in a BTS, there are configurations with MC-TRX and TWIN-

TRX mixed in one BTS or also within one sector possible. (For more details about these

configurations refer to the GSM Generic Customer Documentation).





To keep in mind is the difference between the TRX module (MC-TRX or TWIN-TRX) and the GSM

carriers (logical TRX):

one MC-TRX module have one TX connection and allows to configure 1 to 6 GSM Carriers

(logical TRX)

one TWIN-TRX module have two TX connections and have 2 GSM Carriers (logical TRX), one

per TX connection

5.1.1 Monoband configurations with MC-TRX

The following Table give a summary for Monoband configurations with TWIN-TRX:

One MC-TRX module can be configured from 1 to 6 GSM Carriers (logical-TRX)

In each sector up to 2 MC-TRX modules are possible

Max logical TRX per sector (max MC-TRX module per sector)

MBI3 MBI5 (Note 1)

MBO1E

HEX

MBO1E

DAC

MBO2E

HEX

MBO2E

DAC

CBO

HEX

CBO

DAC

CBOE

/ CBIE

Standard

1

sector

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

2

sector

s

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

6 (1 MC)

6/12 (1/2 MC)

(Note 2)

6 (1 MC)

3

sector

s

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

12 (2 MC)

6 (1 MC)

4

sector

s

6/12 (1/2 MC)

(Note 2)

9 (2 MC)

6 (1 MC)

6/12 (1/2 MC)

(Note 2)

6/10 (1/2 MC)

(Note 2)

9 (2 MC)

Max MC-TRX module per BTS

BTS 6 MC 9 MC 4 MC 6 MC 7 MC 9 MC 2 MC 3 MC 2 MC

Table 12 : Monoband configurations with MC-TRX

(Note 1) MBI53 (the MBI5 equipped with 3 subracks) has the same initial capacity as the MBI3, to achieve the maximum

capacity as the MBI5, the upgrade MBI53 to MBI5 is necessary (possible with upgrade kit) (Note 2) MBI3: 2 sectors up to 12 TRX (2 MC-TRX) and 2 sectors up to 6 TRX (1 MC-TRX)

MBO1E with DAC: 2 sectors up to 12 TRX (2 MC-TRX) and 2 sectors up to 6 TRX (1 MC-TRX)

MBO2E with HEX: 3 sectors up to 10 TRX (2 MC-TRX) and 1 sector up to 6 TRX (1 MC-TRX)

CBO with DAC: 1 sector up to 12 TRX (2 MC-TRX) and 1 sector up to 6 TRX (1 MC-TRX)





5.1.2 Monoband configurations with TWIN-TRX

The following Table give a summary for Monoband configurations with TWIN-TRX:

Max logical TRX per sector (max TWIN-TRX module per sector)

MBI3 MBI5 (Note 1)

MBO1E MBO2E CBO HEX CBO DAC CBOE /

CBIE

Standard, no TX div (capacity mode)

1 sector 8 (4 TWIN)

8 (4 TWIN)

8 (4 TWIN)

8 (4 TWIN)

6 (3 TWIN)

6 (3 TWIN)

4 (2 TWIN)

2 sector 6 (3 TWIN)

8 (4 TWIN)

6 (3 TWIN)

8 (4 TWIN)

3 (11/2 TWIN)

3 (11/2 TWIN)

2 (1 TWIN)

3 sector 4 (2 TWIN)

8 (4 TWIN)

4 (2 TWIN)

8 (4 TWIN)

2 (1 TWIN)

2 (1 TWIN)

4 sector 2 (1 TWIN)

6 (3 TWIN)

2 (1 TWIN)

6 (3 TWIN)

Low-Loss, no TX div (capacity mode)

1 sector 12 (6 TWIN)

16 (8 TWIN)

12 (6 TWIN)

16 (8 TWIN)

4 (2 TWIN)

6 (3 TWIN)

4 (2 TWIN)

2 sector 6 (3 TWIN)

12 (6 TWIN)

6 (3 TWIN)

12 (6 TWIN)

3 sector

8

(4 TWIN) 8

(4 TWIN)

Standard, TX div (coverage mode)

1 sector 4 (4 TWIN)

4 (4 TWIN)

4 (4 TWIN)

4 (4 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 sector 2 (2 TWIN)

4 (4 TWIN)

2 (2 TWIN)

4 (4 TWIN)

1 (1 TWIN)

1 (1 TWIN)

1 (1 TWIN)

3 sector 2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

1 (1 TWIN))

Low-Loss, TX div (coverage mode)

1 sector 2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 sector 2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

2 (2 TWIN)

3 sector 2 (2 TWIN)

2 (2 TWIN)

Table 13 : Monoband configurations with TWIN-TRX

(Note 1) MBI53 (the MBI5 equipped with 3 subracks) has the same initial capacity as the MBI3, to achieve the

maximum capacity as the MBI5, the upgrade MBI53 to MBI5 is necessary (possible with upgrade kit)





5.1.3 Multiband configurations with TWIN-TRX

The following Table give a summary for Multiband configurations with TWIN-TRX:

Max logical TRX per sector - band1 / band 2 (max MC-TRX module per sector - band 1 / band 2)

MBI3 MBI5 (Note 1)

MBO1E MBO2E CBO HEX CBO DAC CBOE /

CBIE

Standard, no TX div (capacity mode)

1 sector 6/6 (3/3 TWIN)

12/12 (6/6 TWIN)

6/6 (3/3 TWIN)

12/12 (6/6 TWIN)

4/2 (2/1 TWIN)

4/2 (2/1 TWIN)

2/2 (1/1 TWIN)


2/2 (1/1 TWIN)

6/6 (3/3 TWIN)


4/4 (2/2 TWIN)

Table 14 : Multiband configurations with TWIN-TRX

(Note 1) MBI53 (the MBI5 equipped with 3 subracks) has the same initial capacity as the MBI3, to achieve the

maximum capacity as the MBI5, the upgrade MBI53 to MBI5 is necessary (possible with upgrade kit)

5.2 BTS configurations detail characteristics

Following chapters detail the characteristics specific to each of these families, especially regarding

the arrangement of Antenna Network (ANC, AND), Wide Band Combiners (ANY) and TRX (MC-TRX

and TWIN-TRX).

5.2.1 Standard configurations

The interface with the antenna system is through one single Antenna Network module (ANC or AND)

in each sector (and then through 2 feeders and two antennas or one dual-polarized antenna).

The building of configurations regarding the number and type of used modules depends on the

number of used TRX modules (MC-TRX or TWIN-TRX) per sector and is done in the following way:

One AN (ANC or AND) is used for one sector

A MC-TRX could only be connected to the AND or ANC in Non-Combining mode, therefore

maximum is 2 MC-TRX in one sector

Using TWIN-TRX (one TWIN-TRX has 2 RF-connections for 2 logical TRX)

- up to 2 RF-connections are possible to the AND or ANC in Non-Combining mode

- up to 4 RF-connections are possible to ANC in Combining mode

- up to 6 RF-connections are possible to ANC in Combining mode and one ANY

- up to 8 RF-connections are possible to ANC in Combining mode and two ANY





1 up to2TRX/ sector

No-combining ANC or AND

Antenna Antenna

TRX 1 TRX 2

3 up to 4TRX/ sector

Antenna Antenna

TRX 1 TRX 4

Combining ANC

5 up to 6TRX/ sector 5 up to 8RX/sector

TRX 1 TRX 2

Combining ANC

Antenna Antenna

TRX 3 TRX 6

Combiner (ANY)

TRX 1 TRX 4

Combining ANC

Antenna Antenna

TRX 5 TRX 8

Combiner (ANY) Combiner (ANY)

Figure 21 : Standard configurations with TWIN-TRX in No TX Div

The number of sectors and TRX depends on the cabinet type (see table above for details).

The different sectors of a given BTS can include different numbers of TRX. Sectored sites requiring

more TRX than indicated in the table above can be achieved by using of two, three or four BTS at

this site. 9100 Base Stations can be combined with BTS of other generations at the same site.

Standard configurations with TWIN-TRX use TWIN-TRX in either No TX Div or TX Div mode.

5.2.2 Low-Loss configurations

The principle of low-loss configurations is to decrease the losses in one sector compared to standard

configurations with the same number of TWIN-TRX, by decreasing the number of combining levels,

therefore increasing the number of antennas in the sector ("air-combining").

The low-loss configurations use the Antenna Network Combining module (ANC) in the following way:

Two AND or ANC per sector (therefore four antennas or two with cross-polarized antenna

per sector)

- Two AND or ANC Non-Combining mode per sector for up to 4 RF connections (2

TWIN-TRX)

- Two ANC in Combining mode per sector for 5 up to 8 RF connections (up to 4 TWIN-

TRX)


TRX 1 TRX 2

3 up to 4 TRXs /sector

Antennas

TRX 3 TRX 4

5 up to 8 TRXs /sector

TRX 1 TRX 8


Combining ANC

Antennas

Combining ANC

Figure 22 : Low-loss configurations for TWIN-TRX in No TX Div

5.2.3 Multiband configurations

All 9100 Base Stations have been designed so as to allow multi-band operation, following the 'One-

cabinet concept': The same cabinets, the same subracks are used for configurations with

combination of two frequency bands (GSM 850 or GSM 900 in one band with GSM 1800 or GSM 1900

in the other one).





Multiband configurations include GSM 850 or GSM 900 / GSM 1800 or GSM 1900 modules, in the same

cabinet with a single Station Unit Module (SUM), which handles the control functions of the BTS

(operation and maintenance, transmission, clock generation ...).

Alcatel-Lucent proposes two types of Multiband configurations depending on the way BCCH is

handled: one BCCH in each band (Without Multiband Cell) or a common BCCH (With Multiband Cell).

From the hardware point of view, there is no difference between a configuration Without Multiband

Cell and its equivalent With Multiband Cell; only the BTS/BSC configuration data is different.

All configurations installed in a Monoband infrastructure can be upgraded for Multiband operation,

in either Multiband BTS without Multiband cell or Multiband BTS with Multiband cell mode, by

inserting transceivers and antenna-coupling modules operating in the second band and by

downloading the relevant software version and data base.

As already mentioned,

the 1-sector configurations (single BCCH) are similar from a hardware point of view to the

2-sector configurations of the Multiband BTS (dual BCCH)





5.2.4 Configuration built with several cabinets

If the needed site configurations (indoor or outdoor, Monoband or Multiband) cannot be achieved

with a single cabinet, it can be done using several collocated cabinets. In that case, all the TRX of

one sector must belong to the same cabinet.

It is possible to optimize the number of cabinets needed for a site configuration (indoor or outdoor,

Monoband or Multiband) built with more than one cabinet, thanks to the 'Cell Split over two BTS'

feature.

In that case, the TRX of one sector can be split over two 9100 BTS cabinets. Various configurations

are possible, the only constraint being that following conditions are fulfilled:

Maximal number of logical TRX per cell is 16.

Maximal number of cabinets between which a given cell is shared is 2.

Cabinets between which a cell is shared are clock synchronised in a master/slave

configuration

Note: when used in Monoband configurations, cell split feature may allow to reduce the

number of cabinets with regards to the solution with one cabinet per sector; but at the

expense of a more complex antenna system (two ANC, hence 4 feeders per sector instead of

2 feeders, as for Low-Loss configurations); this has to be considered before selecting such a

solution

5.2.5 Extended cell configurations

To provide a continuous coverage minimizing the number of sites is the goal of all operators.

Particularly difficult is to reach this goal in sparsely populated areas, because of the 35 kilometres

limitation in cell size stipulated by GSM recommendations.





The Extended cell technology, which allows reaching a coverage range of up to 70 km, is a solution

in low traffic density areas as rural areas, highways, off shore, desert areas, and isles in coastal

vicinity.

An extended cell is composed of one BTS including two sectors. The first sector handles inner-cell

traffic up to 35 km; the second sector handles outer-cell traffic, from 33 km to a maximum of 70

km. Depending on the needed traffic, each sector can include from 1 up to 8 TRX.

Figure 23 : Extended cell principle

5.3 Tower Mounted Amplifier (TMA)

A significant part of the benefits brought by the outstanding sensitivity of the 9100 Base Station can

be lost if the losses incurred