alcatel bts-arabic

1

Alcatel

BTS

Description مترجم انجليزي عربي

حممد شريف جابر

2

بسم اهلل الرمحن الرحيم الحمد هلل وحده والصالة والسالم علي من النبي بعده سيدنا محمد صلى

اهلل عليه وسلم وعلي آله وصحبه ومن تبعهم باحسان الي يوم الدين

وبعد

هذا الكتاب خالصة فهمي وقراءتي لعدة مراجع وكتب من اصدارات

شركة الكاتيل احببت ان اركز فقط علي ما اراه هام ومفيد للمبتدئين امثالي

وابسط شرحه بعربية بسيطة علها تفيد كل من اراد ان يسلك هذا الفرع من

مجاالت هندسة االتصاالت في وطننا العربي فان نجحت فمن فضل اهلل

وتوفيقه وان لم انجح لكم العتبى وتذكروا انها تجربتي االولى وقد قصدت

بها المساعدة لمن يحتاج وكل ما ارجوه منكم الدعاء لي ولوالدي بالمغفرة

والرحمة في الدارين والتوفيق والنجاح في حياتي العلمية والعملية ولعامة

: المسلمين واي مالحظات ارجو مراسلتي علي العنوان االلكتروني

[email protected]

00249922649459اي التلفن

اهداء

......اهذي هذا الجهذ المتاضع الي كل مه علمىي حزف

التي اتاحت لي فتزة تذريثية (ادارة يمهىذسيه يمتذرتيه )يالي شزكة المثشز الخذمية

كاوت سىذي االساسي في هذا الكتاب ياخص االخة

فضيل& الطية & احمذ

ياهذيه الي الجميع

يلكم ارق تحياتي

محمد شريف جابر

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GSM

(Global System for Mobile Communications) اؾشف االر١١خ األ ػجبسح

٠غزخذ . اشل١خ اشائذح ارف امبخ أؽذ األظخ, أ اظب اؼب الرصبالد ابرف امبي

ىببد زضاخ ػ فظ 8ب ٠غؼ ثإعشاء ثؾضخ رشدد ض١مخ, TDMA ؼ١بس GSM ظب

:ازشدد االعى ٠زى زا اظب االعضاء ازب١خ

.

رزأف Base Transceiver Station (BTS) ب ٠ب ب ؾطخ اسعبي امبػذح

اائ١بد االصخ خذخ و خ١خ ف Transceiversازغ١ضاد اشاد٠خ وبشعالد اغزمجالد

ض غبي MS ثزغط١خ خ١خ اؽذح ٠ى ب أ رزص غ ابرف امبي BTSاشجىخ ؽ١ش رم و

از رفش برف ٠BTSزص ابرف امبي غ اشجىخ اشاد٠٠خ اخ٠١خ ػ طش٠ك اـ . ؾذد ؾ١ظ ثب

امبي لبح ساد٠٠خ رى اط إ اشجىخ اخ٠١خ اغضء اشجىخ از شبذ ػ اعطؼ

. اجب ا صثب ػ اثشاط

: و لغ ٠زى صالصخ اعضاء سئ١غ١خ

اجشط ٠شوت ػ١ طجك اب٠ىش٠ف از ٠م / 1

وب ( اخش bts ا bsc )ثشثظ زا الغ ثالغ اخش

٠خذ و ائ لطبع (از١بد )٠ضغ ػ١ صالصخ ائ١بد

دسعخ ١ز رغط١خ و اخ١خ ف ؽبز االسعبي 120ثضا٠خ

. االعزمجبي

اذ ذ الغ ثبىشثبء ف ؽبخ امطبػب / 2

. ا ػذ رفشب

اشزش غشفخ ىؼجخ اضه ص ثب / 3

عبص رى١١ف زضج١ذ رخف١ض دسعخ ؽشاسرب ػذ غز

ف١ذساد اىاث امبدخ اائ١بد اػ اجشط ا وبث١خ )ؼ١ ثب فزؾخ رذخ اىاث رش

رضغ ثذاخ زا (اىاث امبدخ اطجبق ا١ىش٠ف ا ؽذار اذاخ١خ & اؾطخ امبػذ٠خ

: اشزش اعضح ىبد اؾطخ امبػذ٠خ

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صذق ايATS( automatice transfere switch ) اغئي ػ از١بس

رص٠ؼبر رشغ١ اذادMDPاىشثبئ م ا صذق

صذق االزاسادalarmbox)) ػجبسح ػ عشط إزاس ؼذ٠ذ األػطبي از

رؾذس ف األعضح ازبثؼخ شزش

عبص ايRectifier 220 عبص ٠م ثبزؾ٠AC 48- اDC ال غبج١خ

االعضح داخ اشزش رؼ ثز ام١خ وب ا ٠ؾز ػ اجطبس٠بد از رؼ ػ

رشغ١ الغ فزشح ص١خ ف ؽبخ امطبع از١بس اؼب ر١بس اذ ال عجت ب

اؽذاد اذاخ١خ اعضح ا١ىش٠ف از ػ طش٠مب ٠ىب اعشاء اؼبغبد

اص١بخ اطثخ

وبث١خ ايBTS امت ابثض لغ ا عضء ف١ از عم ثذساعزب ثش

ازفص١ ب لذ اخزشد

ALCATEL EVOLIUM A9100 INDOOR-BTS (MBI5)

ؼزذا ػ اشعغ از اصذسر اششوخ ثؼا

Alcatel 9100 BTS Description

اعبي هللا ا ٠فم ف ره ا ػ و ش لذ٠ش

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Situation of the BTS

Topology طرق ربط يحطبث االرسبل انقبعديت

In chain topology, the BSC is connected with Abis link to a BTS. This one is connected to a second BTS with a second Abis link, the second BTS is at

its turn connected to a third one and so on.

طش٠مخ اغغخ ايbsc ٠شثظ ػ طش٠ك Abis ا bts ز ا bts اخش ػ طش٠ك صخ Abis اخش ىزا ....

In ring or loop topology, the last BTS of a chain is connected back to the BSC. This topology offers some security since traffic between any BTS

and BSC is broadcast on the two paths, selection is based on dedicated Service bits / bytes.

طش٠مخ اؾمخ ف١ب ٠ز رص١ اخشbts ف ظب اغغخ شح اخش ا bsc رفش اب

bts اي bscعش٠خ اوجش اال عد غبس٠ ث١ اي

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Abis via satellite : BTS on satellite Abis links have increased timer value for the LAPD protocols (RSL, OML).

اشثظ ػ طش٠ك االلبس اصبػ١خ

Cell split over 2 BTSs: The system is able to handle cells whose TRXs are located in two different BTSs. This feature brings important flexibility by

allowing particularly: o To extend an existing site only by adding TRXs in a new BTS, not

touching the arrangement of the existing BTS,

o To combine existing cells into one, e.g. one GSM 900 cell and one GSM 1800 cell in order to get a multi-band cell,

o To support 3x8 TRXs configurations in 2 racks (instead of 3).

ضػخ ف (غزمج/شع ) TRXs ٠غزط١غ اظب ازؼب غ خال٠ب رؾ 2btsرمغ١ اخ١خ ػ : لبػذ٠خ خزفخ ب ٠فش ب اسعبيؾطبد

اىب١خ ازعؼخ لغ اؾب فمظ ثبضبفخTRXs ي btsعذ٠ذح

ؾصي ػ خ١خ زؼذدح اطبلبد1800 900عغ اخال٠ب اؾب١خ ض

3دػ ازص٠غx8 TRXs ف ١ى١ فمظ ثذي صالصخ

Functions of the BTS وظبئف يحطت االرسبل انقبعديت

The BTS performs:

The coverage of the radio transmission رغط١بد االسعبي اشاد٠

The management of air interface with the mobile اداسح اشثظ غ اؾطخ امبػذ٠خ

The O&M functions ظبئف ازشغ١ اص١بخ

Radio Performance

Support GSM900 (E-GSM), GSM1800 (DCS), GSM1900 and GSM850

رذػalcatel A9100 Evolium BTSازشدداد اػال

Dual band configurations

اىب١خ رص٠غ صبئ اطبق

Reception sensitivity at antenna connector better than -111 dBm, for GMSK modulation

111-عدح اعزمجبي اوضش dBm ػذ االز١ب غ رم١خ GMSK

FR (Full Rate), HR (Half Rate), EFR (Enhanced Full Rate), AMR

(Adaptive MulRate) are supported

رذػalcatel A9100 Evolium BTSاطشق اػال

Support several A5 ciphering algorithms (A5/0=“no ciphering”, A5/1 and A5/2)

رذػ غش٠ضبد ازشف١ش ازص١ك اػال

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Bands that are supported by A9100 Evolium BTS:

alcatel A9100 Evolium BTSاطبلبد ازشدد٠خ از رذػب

Radio (synthesized) frequency hopping

امفضاد ازشدد٠خ ض٠بدح اغش٠خ االب

Coverage solutions for improved output power:

ؽي زؾغ١ طبلخ اخشط

Antenna diversity

(ضال سثظ ؾطز١ ثزشدد٠ خزف١ ا فظ اائ )رع اعزخذا فظ اائ١بد

Wide Band Combining

رغغ طبلبد رشدد٠خ اعؼخ

Operation and Maintenance Features

Station unit sharing

االشزشان ف ؽذحSUMA عزششػ الؽمب

Automatic progressive shutdown in case of mains power failure (AC powered BTSs)

ضال دخي ر١بس اػ ا ال ب غػ )رغك اربر١ى١ب ف ؽبخ االػطبي اىشثبئ١خ

Support of the hardware auto-detection

رمج اص١بخ ا١ىب١ى١خ فمظ ثبعزجذاي اؽذاد ازؼطخ ثبخش رؼ

Hot insertion / extension of all modules

اىب١خ ازعؼخ االدخبي ى اؽذاد

Auto-identification

رار١خ ازؼش٠ف

Unbalanced losses/powers detection and regulation

ازاص االػزذاي ف فمذ اطبلخ

SW download (from BSC to BTS) without service interruption

رض٠ اغفز٠شbscد امطبع اخذخ

2 SW versions kept in flash EPROM’s in SUM

ؽفع عفز٠ش اؽز١بط ف ؽذحSUMA

Fast restart after breakdown

اػبدح رشغ١ عش٠ؼخ

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Transmission and Power supply

Two A-bis connections

Free run mode or external clock reference synchronization

اىب١خ ازضا خبسع١ب زذػ ابط رشغ١ خزفخ

Plug-in light indoor Unit (PIDU) of microwave entity

عد ؽذح سثظ ػ طش٠ك ا١ىش٠ف

By-pass of A-bis connections in case of BTS switch off

اغبػ ثزش٠ش اشثظA-bisف ؽبخ اؾطخ امبػذ٠خ غمخ

DC or AC power supply

رذػ ر١بس جبشش زشدد

Other Features: ييزاث اخري

GPRS ready

EGPRS ready by a simple “add TRE”

UMTS ready

Split Cell

GMSK and 8-PSK comparison يقبرنت بين انتقنيتين

GMSK:

is a constant amplitude modulation.

رؼذ٠ طب صبثذ power amplifiers are often used as close as possible to the saturation point

in GMSK, if not in the saturation region.

8-PSK

is a non-constant amplitude modulation.

رؼذ٠ طب زغ١ش

it is important to ensure that peaks of 8-PSK modulated signals are using the power amplifier in a non-saturation region.

therefore the average 8-PSK power is smaller than the peak 8-PSK

power. The difference between the GMSK average power and the 8-PSK average

power is called the 8-PSK Delta Power.

PSK Delta Power-8 ٠غ PSK-8 زعظ طبلخ GMSKافشق ث١ زعظ طبلخ

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Cell split over 2 BTSs تقسيى انخهيت عهي

Description اصف If the needed site configurations (indoor or outdoor, single band or multiband)

cannot be achieved with a single cabinet, it can be done using two collocated cabinets.

٠ى رص١ وبث١ز١ خزفز١ ا ائ ؽ١ذ داخ اخ١خ زذػب طبل رشدد٠ خزف١

Benefits ابفغ Cells can be defined with up to 16 TRX, split in two sectors one main and one

secondary مغخ ػ لطبػ١ اعبع صب ٠16TRXى خ١خ ا رؾز ػ

Reduced number of cabinets for some configurations (e.g. 3 x 8 TRX)

رم١ ػذد اىجبئ ف ػذح طشق ااع ازخط١ظ ازص٠غ شجىخ Merge two existing cells in different bands in one dual-band cell

ضط اخال٠ب اخزفخ ازشدداد اؾب١خ ف خ١خ اؽذح زؼذدح اطبلبد

There is no need to modify the configuration of the existing BTS when extending a site (no need to change the cabling)

الؽبعخ الػبدح رؼذ٠ ازخط١ظ ػذ رعؼخ الغ اؾب ث ٠ز اعزخذا بعد عفب اداد

The two cabinets are clock synchronised in a master / slave configuration. ٠ز اعشاء رضا ث١ اىج١ز١ ومبئذ ربثغ ؽز ال ٠ؾذس رذاخ ف رؾ١ فظ اىبخ

Extended Cell تديد انخاليب

Definition

o Provides the continuous coverage, minimizing the number of sites.

o رض رغط١خ غزشح لخ ف ػذد االغ Allows reaching a coverage range of up to 70 km in low traffic density

areas such as: rural areas, highways, off shore, desert areas

و ض طشق اشس اغش٠غ70رض رغط١خ غبفبد رص ا

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Principle افب١

o An extended cell is composed of one BTS including two sectors: o زا اع اخال٠ب ٠ؾ فمظ لطبػ١

1. the first sector handles inner-cell traffic up to 35 km.

و 35االي ٠غط غبفخ رص 2. the second sector handles outer-cell traffic, from 33 km to a maximum of

70 km.

و 70 – 33اضب ٠غط اغبفخ ث١ 3. each sector can include from 1 up to 4 TRX.

وؾذ الص 4TRXا لطبع ٠ؾ

Microwave integration انبيكرويف

Microwave links are one of the possibilities to provide 2Mbit/s links

required for connection to the BSC or to other BTSs. bscاؽذ اطشق اشبئؼخ شثظ اؾطبد امبػذ٠خ اي

Microwave equipment are typically made of two parts:

ؼذار رزى عضئ١

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- a "radio part" that includes the antenna and the associated transmitter/receiver;

this part is typically installed outdoor, where the antenna must be, and is thus also called the "Outdoor Unit" (ODU).

ODUؼذاد ساد٠٠خ وبطجك اصة ػ اائ رغ اؽذاد اخبسع١خ

- a "baseband part" that takes in charge base band processing plus other common functions; this second part is designed to be installed indoor, and is thus

also called the "Indoor Unit" (IDU)

IDUاالعضاء االعبع١خ اذاخ١خ از رم ثؼبغخ طبق ازشدداد اظبئف االخش رغ ODU in 13-23-25-38 GHz frequency bands.

ؽغت اغبفبد ادب GHz 38-25-23-13اؽذاد اخبسع١خ زبؽخ زؼ ػ ازشدداد

Typically the distance achieved are: From 5 to 30 km for the microwave frequencies (13 to 18 GHz)

From a few hundred meters up to 10 km for the millimeter wave frequencies

(23 to 38 GHz)

Microwave integration

The Plug-in light IDU (PIDU ) is a new mechanical version of the light IDU, that has been designed to be fully integrated in the indoor and outdoor cabinets as

a BTS plug-in module in the radio sub-racks.

وجم١خ االعضاء ثذال ا رضغ وغضء فص bts زظ عذ٠ذ صذ زضغ داخ وبث١خ ايPIDUايص رص ا اىبث١خ

PIDU features:

Power supply via back panel as other BTS plug-in modules. ربر١ب اىشثبء اؽخ اخف١خ وجم١خ اعضاء اىبث١خ

A-bis connector and connection to ODU accessible on the front panel.

٠ز سثطب ثبؽذاد اخبسع١خ ف فز اب Monitoring of Microwave possible by external alarms.

شالجخ اب٠ىش٠ف ثبزاساد خبسع١خ Possible integration of the PIDU in the BTS remote inventory.

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Secondary A-bis

The increase in data throughputs over radio interface, may lead to the use of a secondary Abis. Only SUMA board supports this feature.

اضبف١خ طشق سثطب وب ٠ Abisص٠بدح رذفك اج١ببد خالي اشثظ اشاد٠ رطت اعزخذا صخ

New Abis topologies are accepted:

اللهم اغفر لجامع هذا الكتاب وارحمه في

والمعافاة في الدين الدارين وامنحه الصحة والعافية

واجب جميع دعواته وفرج جميع كربه والدنيا واالخرة

ووسع رزقه بالحالل وارزقه حجة مبرورة ولوالديه واهله

وصحابه وجميع المسلمين يارب العالمين

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Functional Architecture

BTS Overall architecture نظرة عبيت نعبريت انبي تي اس ووظبئف يكىنبتهب

BTSاشى ٠ضؼ خطظ ىبد وبث١خ اي

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Transmission controls : وحدة االرسبل تتحكى ة

Radio channels management.

Abis link management.

OMU manages: وحدة انتشغيم وانراقبت تقىو ة

Fault management.

Performance management.

Translation of SBL to RIT

TRE controls : تتحكى ةTRE

Modulation of the signal

TDMA Frame

AN Role: انهىائي يسئىل عن

Coupling, Duplexing.Filtering.

Amplification. Splitting.

Transmission

Two physical A-bis interfaces are used to connect the BTS to the BSC bsc ثبي bts رغزخذ شثظ اي Abisصز

This interfaces are supervised by transmission functions at BTS and BSC sides.

ب ٠ز١ؼ اسعبي ؼبغخ اج١ببد اؾبدصبدbsc اي ٠bstز شالجخ بر١ اصز١ ػذ اي This interface handles the transfer of traffic and signalling data

The 2 Mbps bandwidth of the Abis Interface is used as 32 time slot, each of 64

kbps (ITU G703/704 frame).

Operation and maintenance

The O&M functions monitor and control the operation of the BTS:

: ؽ١ش االزب ة btsظ١فخ ؽذح ازشغ١ اشالجخ ازؾى ثزشغ١ اي 1. Configuration management ازص٠غ ازخط١ظ

2. Fault management االخطبء االػطبي

3. External alarm handling االزاساد اخبسع١خ ره وب ٠

The O&M Configuration Management Function handles the following tasks:

ظ١فخ اداسح رخط١ظ رص٠غ ؽذح ازشغ١ اشالجخ رزبي اظبئف ادب 1. Central command Control

2. Configuration / Initialisation

3. File Handling 4. Data base

5. Remote Inventory and RF Cabling Detection 6. Live Insertion and Removal of modules

7. Hardware extension / Reduction

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The Fault Management Function handles the following tasks: اب اداسح االخطبء فزؼ ػ

1. Alarm detection and Correlation

2. Alarm Reporting 3. Alarm Translation

4. Module Power Supply Control

External Alarm Handling

ازاس خبسع زبػ 16اب االزاساد ف رى

For all BTSs, 16 external alarms inputs are available.

Antenna network

The main functions of the AN are:

Downlink

o Isolation of the transmitters from the receivers

o ػضي اشعالد اغزمجالد o Combining of two transmitters to connect them to single antenna

o سثظ شع١ ثائ ؽ١ذ

o Duplexing to allow transmitters and receivers to share the same antenna o Power coupling and detection to sample the VSWR forward and reflected

power

o رؾغظ شالجخ رط اطبلخ اشعخ اؼىغخVSWR ( ع١ششػ الؽمب)

Uplink

o Pre-amplification to amplify the received signal and control the overall gain

of the antenna network o Splitting to distribute the received signal to a pair of receivers

اللهم اغفر لجامع هذا الكتاب وارحمه في

والمعافاة في الدين الدارين وامنحه الصحة والعافية

واجب جميع دعواته وفرج جميع كربه والدنيا واالخرة

ووسع رزقه بالحالل وارزقه حجة مبرورة ولوالديه واهله

وصحابه وجميع المسلمين يارب العالمين

16

Hardware architecture اعضاء ىبد اىبث١خ

The Architecture of the Alcatel 9100 Base Station is based on three levels: ؼبس٠خ ؾطبد لبػخ اىبر١ رشرىض ػ صالصخ غز٠بد

Antenna Coupling Network level غز شجىخ سثظ اائ١بد

Duplexers stage (ANC) Combiners stage (ANY)

Transceiver (TRX) level اغزمج /غز اشع

Base station Control Function (BCF) level غز ظبئف ازؾى ثبؾطخامبػذ٠خ

اشى ازب ٠ج١ وبث١خ سففب خب١خ ا ىبد اخش

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MBI5: Multistandard Base Station Indoor(5 shelves)

(بن ااع اخش رخزف ف ػذد اشفف ضال صالصخ )اؾطخ امبػذ٠خ اذاخ١خ راد اخغخ سفف :٠ز سص االعضاء اؼذاد ػ زا اؾ

ثبءا ػ ازشر١ت ازب (ا طش٠مخ ضغ اؽذاد االعضاء اىخ ىبث١خ )٠ز رخط١طب

:زا ٠ؼ

االسثؼخ TRXرى ز اي TRX رخذ خ١خ ثب صالصخ لطبػبد و لطبع ث اسثؼخ ؽذاد btsوبث١خ

٠ز feederس شثط ثبائ ػ طش٠ك و١ج ٠ذػ از ثذ Combiner (ANc )شثطخ ا

وب عفص ادبSUMAازؾى ف ز اىبث١خ ػ طش٠ك ؽذح

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اشى ٠ضؼ ب ظش اب

ىبد اعضاء اىبث١خ وب

:٠ ثذءا االػ العف

o اشاػ اؼ٠خ

o طمخ ازص١

o اسثؼخ ؽذادTRX

o شاػ

o فزؾخ ر٠خ

o ؽذحSUMA + ANc ا

ANcغبجب ؽذر ) ANcؽذر

o Dummy Panel

o اسثؼخ ؽذادTRX

o شاػ

o فزؾخ ر٠خ

o ؽذحSUMA + ANc ا

غبجب ؽذح ) ANcؽذر

SUMA + ANc)

o Dummy Panel

o اسثؼخ ؽذادTRX

o شاػ

o فزؾخ ر٠خ

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ز صسح االػ ىبث١خ رظش اشاػ

:اب اشى اػال ف ٠ضؼ ب طمخ ازص١ ىخ صالصخ اعضاء

XIBM = ذخ العالن االزاساد اخبسع١خ امبدخalarm box

MSCA = طمخ سثظ رص١ زؼذدح امب١٠ظ

DCBR5 = طمخ دخي اىشثبء دائش اؾب٠خ

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Transceiver (TRX) level انستقبم /يستىي انرسم

The transceiver (TRX) level covers GSM 850, GSM 900, GSM 1800 and GSM 1900 functionalities, including full rate, half rate, enhanced full rate, antenna

diversity, radio frequency hopping (synthesized hopping) and different iphering

algorithms. For each band, these functions are integrated into one single module. Inside each TRX module, an RF loop is implemented. The loop test is performed

after downloading the frequencies to the BTS as a supplement to the autotest.

The TRX module also handles the Radio Signaling Link (RSL) protocol. اخارب ال طبق full rate اخا ؾز٠ب ػ رم١بد GSM900 ٠خذ ظبئف اي TRXاي

ثؼذ رض٠ RF loop اؽذح ثبالضبفخ زظ١ف اخزجبس TREرشدد ز اظبئف رذظ ف ؽذح

RSL وزه رززؾى ثجشروي btsازشدداد ػ اي

Main Functions

Base band processing and RF processing رم ثبؼبغبد ػ ازشدداد اشاد٠٠خوبالر

Radio resource management

Burst coding/decoding, encryption/decryption, modulation/demodulation,

power control and ramping, DTX . .....اداسح ازشدداد اشاد٠٠خ وبزشف١ش ازؼذ٠ ازؾى ثبطبلخ

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Terrestrial link management Transcoding and rate adaptation, LAPD management 16 & 64 kbps with static

and statistical submultiplexing

اداسح ازص١الد االسض١خ

Telecom TRX management

Overload management, Telecom configuration/ reconfiguration, RSL

management رخط١ظ غ١شTRXاداسح ارصبالد اي

Analogue signal processing Analogue transmitter, analogue receiver, loop for RF supervision

......ؼبغخ االشبساد ازبص١خ ثبسعبب اعزمجبب

TREاشى ازب ٠ضؼ صسح اب١خ ؽذح اي

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TRE Front panel

از رؾ بفز ازص١ ازب١خ

ششػ و ؽبخ( ض١ئخ طف١خ ىزىخ ) ازب١خ ااب ؽبالرب ( leds )وب رؾ اضبئ١بد اضئ١خ

Leds meaning

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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. A single module called Antenna Network Combiner (ANc) performs these

functions for up to 4 TRXs. For configurations of higher capacity, a Combiner

stage can be added. Thanks to the ANc flexibility and 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…).

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The general functions performed at this level are: -

Duplexing 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).

اؽذح , ٠زبي ظبئف اشثظ غ اائ١بد TRXزا اغز اشاثظ ث١ اائ١بد غز اي

) ثاعطخ زح اؽذح غزف١ذ زا اغز ف ػذح ظبئف TRE رخذ اسثؼخ ANcااؽذح رذػ

ى اظ١فخ اشئ١غ١خ ب ضبػفخ غبساد (.... رم١ غز فمذ از١ رم١ ػذد اائ١بد

االسعبي االعزمجبي ض فظ اائ رؾ٠ االشبساد اغزمجخ اائ ا طشف االعزمجبي ؽ١ش

االشبساد رؼذي رؾي ا سع١فشاد خزفخ

ا٠ضب رذػ رم١خ شاعؼخ غبساد االسعبي االعزمجبي رم ثزغ١غ اشبساد شعالد خزفخ اؽ١بب

رص ثبائ١بد

The Antenna Network Combiner (ANc) module The Antenna Network

combiner module (ANc) connects up to four transmit 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: رشثظ ف اؼبدح اسثؼخ اشبساد شعخ غ ائ١١ رمغ االشبساد اغزمجخ ا ائ ANcؽذح اي

ػ اسثؼخ غزمجالد ز اؽذح رؾ لطبػ١ وبالر

- 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

downlink and uplinkلطبع ٠غؼ ائ ؽ١ذ ١غزخذ ف االسعبي االعزمجبي ماد - 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 ( اى١ج از ٠شثظ اائ ثبىبث١خ ) شالجخ اف١ذس VSWRلطبع ٠خزبس رشدداد

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ANcاشى ازب ٠ضؼ صسح اب١خ ؽذح اي

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ششػ و ؽبخ( ض١ئخ طف١خ ىزىخ ) ااب ؽبالرب ( leds )اضبئ١بد اضئ١خ ز

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2.1.3 Base station Control Function (BCF) level This level is ensured by the Station Unit Module (SUM), which is the central unit

of the BTS. There is only one such module per BTS, whatever the number of

sectors and TRXs is; this common control function of the SUM is also called Station Unit Sharing. The main base station control functions performed are as

follows:

از رى اؽذح ى وبث١خ ثغض SUMA رذػ اي btsزا اغز ٠زض اؽذح اشئ١غ١خ وب bts٠ رم ثبداء ظبئف ازؾى TRXاظش ػ ػذد امطبػبد از رخذب اي

- 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 or another BTS - or generated in a pure free-run mode by an internal frequency generator.

BTر١ذ جضبد ازضا ى ؽذاد اي

- Ensuring central BTS Operation & Maintenance (O&M) application, - Handling the A-bis transmission links (up to two A-bis interfaces), - Handling

Operation and Maintenance Link (OML) and Controlling the AC/DC function

when integrated inside the BTS (Outdoor or Indoor AC configurations), -

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Controlling the battery (capacity, voltage, temperature), - Setting the optimal

voltage and current for battery charging. ثصب ثالثزة اعزخذا ثشبظ ؼ١ btsا٠ضب اداء ظبئف ازشغ١ اص١بخ ٠ذ٠ب غ١غ ؽذاد اي

زه وبالضخ ازوسح اػال

SUMAاشى ازب ٠ضؼ صسح اب١خ ؽذح اي

ض١ئخ طف١خ ) ااب ؽبالرب ( leds )اضبئ١بد اضئ١خ ز

ششػ و ؽبخ (ىزىخ

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و وج١ش شثط ثبسثؼخ (ثاعطخ صالصخ وج١شاد )اخ١شا زا رخط١ظ ىبث١خ رخذ صالصخ لطبػبد

TRE

اخسا يلس اخسا

الحمد هلل الر يفقى ف اكمال را الكتاب عل ر الصز الت ازج ان تكن قد والت

زضاكم كما اتمىى مىكم ان تقما بىشس لكل مه حتاج فزكا العلم وشس كما قل

يالسفتس المستخدم لصاو BTSيان شاء اهلل قسبا اضع به دكم كتاب ختص بصاو ال

اذا لم طسأ عازضAlcatel-9100-Bts-Maintenance-اعطالا ي بعىان

ياهلل المستعان

اللهم اغفر لجامع هذا الكتاب وارحمه في

والمعافاة في الدين الدارين وامنحه الصحة والعافية

واجب جميع دعواته وفرج جميع كربه والدنيا واالخرة

ووسع رزقه بالحالل وارزقه حجة مبرورة ولوالديه واهله

وصحابه وجميع المسلمين يارب العالمين