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BTS Commissioning ProcedureContent

4I.Objectives

4II.Work Preparation

4III.BS240/ 240XL Overview

6III.1.Modules

6III.1.1.Core Basic/ Core Satellite

6III.1.2.Carrier Unit

8III.1.3.Combining Unit

9IV.Commissioning

9IV.1.Visual Check

10IV.2.HW Configuration and Jumper Setting

10IV.2.1.Core Module

14IV.2.2.Combiner

14IV.2.3.ACT

15IV.3.Software Download and Activation

17IV.4.Definition of Rack

19IV.5.Creation of Module

20IV.5.1.COSA

21IV.5.2.CU

22IV.5.3.DULNA

23IV.5.4.DUVSWR

24IV.5.5.FAN

24IV.6.Setting BTSE Attribute

25IV.7.Creation of BPORT

26IV.8.Creation of LAPDLE

28IV.9.Setting BTSM

29IV.10.Switch BTSM to PH3

30IV.11.Creation of Enva

30IV.12.Remote Inventory

30IV.13.Perform Check and Test

31V.Integration

31VI.Test After On Air

33VII.Appendix

I. Objectives

Maksud dan Tujuan

This document is intended to be used as a reference to guide the BS240/ 240XL commissioning and BTS function testing. It contains all description of procedure commissioning the BTS system.

Dokumen ini ditujukan untuk membuat suatu petunjuk acuan dalam komisioning BS240/ 240XL dan test fungsinya. Dokumen ini mencakup seluruh prosedur komisioning BTS.

II. Work Preparation

Persiapan Pekerjaan

Before starting the commissioning works, these document and information below must be available:

a. Work Instruction Document (see app.2.1) b. OHSE document (see app 2.2)c. DBCR or database change request (see app 2.3)d. Information of PCML and all radio system number that will be usedd. BSS Asplan, which is left inside rack by former installation team (see app.2.4)

III. BS240/ 240XL OverviewOverview BS240/ 240XL

There are two BTSE families in the Siemens BSS. The BTS one family including BS60, BS61, BS22, BS20, BS21, and BS11 and the BTS Plus family including the e-Micro BTS and the Pico BTS and all BTSE gathered under the name BTS plus BTSE.

This BTS plus products are:

BS240/ BS240 II/ BS241/ BS241 II with max 24 TRX in 3 (carrier) racks.

BS40/ BS40 II/ BS41/ BS41 II with max 4 TRX in a single rack.

BS240XL/ BS240XL II with max 24 TRX in 2 (carrier) racks.

For the BTS plus BTSE dual band operation in the GSM900 and GSM1800/1900 frequency bands is possible.

Filter and duplex combiners offer high output power and a minimized number of antennas, respectively. A TMA (tower mounted amplifier) for highest receiver sensitivity is available.

All BTS plus offer GPRS (General Packet Radio Service) and are prepared for EDGE (Enhanced Data Rates for GSM Evolution).

Fig. 1Rack BS240/241III.1. Modules

Modul

The categories for the main BTS plus components are:

Core boards (COBA/COSA) Carrier Units (CU)

Combining equipment (DUAMCO, FICOM, DIAMCO)

Up to 8 PCMB lines can be connected to the two core boards. The main communication between the modules runs via a bi-directional serial link between the carrier units and the core boards (CC-Link). The serial link is also used for base band frequency hopping. Alarms of the CU boards are transmitted via CC-Link. All non-CU boards (e.g. DUAMCO) report their alarms to COBA via the CAN Bus.

III.1.1. Core Basic/ Core Satellite

COBA/ COSA

The main functions of Core Base and Core Satellite are:

Local control of entire BTSE

Generation of system clock

Providing max 8 Abis interfaces to BSC and other BTSE Routing Abis data to max 24 CU

Providing T-interface to LMT

Handling and processing of O&M messages

COBA supports max 2 PCM interfaces and 8 CU. Usually we found COBA2P8 code on the module. COSA is required for expanding the BTS plus capacity with an additional 6 Abis and 16 CU. In COSA we found COSA 6P16.COSA is controlled from the COBA via the satellite interface.

III.1.2. Carrier Unit

CU

The carrier units CU contains all analogue and digital signal processing units (including a RF power stage) to provide a single GSM/ EDGE carrier (with 8 time slots). The carrier unit interfaces to the combining equipment via semi-rigid cabling and to the Core Module via CC-Link.

Fig. 2 Carrier Unit (CU)

The carrier unit composed of the following units:

PATRX (Power Amplifier and Transceiver Unit) PSU (Power Supply Unit) SIPRO (Signal Processing Unit)III.1.3. Combining Unit

DUAMCO/FDUAMCO

The DUAMCO modules contain duplex filters in order to combine transmit and receive path to one antenna connector. The receive path consist LNA (low noise amplifier) and power splitter. The DUAMCO amplifier has two different operation modes which can be selected by e.g. DIP switches. In the following, Mode 1 is called AMCO mode where no TMA is used and the second mode is called MUCO mode where TMA is used.

Fig. 3 FDUAMCO

IV. Commissioning

For commissioning BS24x/ BS4x, there are some steps/ procedures that needed to do.The main steps are:

IV.1. Visual Check

The first steps of each commissioning are the visual check of BTS mechanics and electrics: (For detail see app 4.1) BTS rack (rack fixing, fixed boards)

Damage to rack or shelter

Correct insertion of modules

System/ rack cabling (semi rigid, PCM, alarm, and indoor jumper cable) Antenna system installation (direction and type of antenna same with DBCR) Grounding

Main fuses

External interface-power supply, antenna, alarm and Abis wiring.

IV.2. HW Configuration and Jumper Setting

IV.2.1. Core Module

The COBA/ COSA contain three transceiver sub-modules for 75 , 100 , or 120 impedance matching.

COBA Setting

Switch settings of port 1 and port 2

Switch settings External Synchronization

COSA Settings

Switch Setting COSAIV.2.2. Combiner

The DIP switches on the front side of DUAMCO determine whether the DUAMCO run in AMCO or in MUCO mode.

IV.2.3. ACT

On the ACT, the rack address must be set. For the base rack and the extension rack 0, the racks address setting done by factory. Thus only for extension rack 1, setting on site is required.

IV.3. Software Download and Activation

Before starting the download, reset the COBA with the push button on the front side. With the COBA in Phase 1, its LED shows the following pattern.

Download the BTS plus software from the LMT hard disk to the COBA FEPROM.

After the download is completed, activate the BTSM software then the COBA and CU Ram are loaded and the BTSM reaches Phase 2. The LMT session is closed and new logon is required.

Activation of BTSMIV.4. Definition of Rack

The rack size for BS24x can take the following values: BS240/ BS241 for base rack (no. 0) and extension racks (no.1 and no. 2)

BS240XL, only one extension rack (no. 1) is used.

BS4x, for base rack (no. 0)

For the base rack (RACK: 0) the command SET RACK has to be used, and for extension rack (RACK: 1&2) we used command CREATE RACK.

Creation of RackIV.5. Creation of Module

All the possible managed objects for BS24x and BS4x are summarized in the following tables. Only those managed objects that are physically present need to be created (exception COBA: 0, which is created automatically).

IV.5.1. COSA

COSA must be created to use more than two PCM lines or more than 8CUs, also for using cross connect function. For BS-240/ 240 II/ 240XL/ 240XL II, there can be 8 PCM lines connected. PCM 1 and 2 supplied by COBA, and PCM 3 to 8 supplied by COSA. The COSA can only be installed in Base Rack (RACK: 0).

Creation of COSACREATE COSA:NAME=RACK0/COSA:(no: 0 or 1)

COSA 0: For basic module

COSA 1: For redundant (optional) IV.5.2. CU

The base rack and the extension racks can be equipped with 8 CUs each (12 CUs in BS-240XL/ 240XL II). For more than 8 CUs perbs-240 / 240 II/ 240XL/ 240XL II, the module COSA must be created.

Creation of CUIV.5.3. DULNA

DULNA supplies the Rx path of DUAMCO/ FDUAMCO. There are two managed objects per module. They must be handled separately. Each CU has a normal path Rx input and a diversity path Rx input and the wiring data indicate which of them is physically connected to the DUAMCO LNA.

Creation of DULNACREATE DULNA:NAME=RACK:(no)/DULNA:(no), CELLNO=(no), COMBMD=(combiner mode), LNAPRED=(pred type), WDLNA=(no of CU normal or diversity mode).

IV.5.4. DUVSWR

DUVSWR supplies the Tx path of DUAMCO/ FDUAMCO. There are two managed objects per module. They must be handled separately.

Creation of DUVSWRCREATE DUVSWR=Rack:(no)/DUVSWR:(no), CELLNO=(no),COMBMD=(combiner mode), WDDUVSWR=(no 0f CU).

IV.5.5. FAN

The rack can be equipped with 6 fans (8 fans in BS-240XL/ 240XL II). During the creation of each fan, the alarm for defective fan is generated automatically.

Creation of FANIV.6. Setting BTSE AttributeWe have four things that have to set in BTSE attributes: Location Name (LOCNAME) Sales Unique Name (SALUNAME) Vendor Name (VENDNA) Software Load Safety (SWL, after BTSE connected to BSC)

One of the most important of BTSE attributes is the Sales Unique Name. The SALUNAME together with the TEI is used for uniquely addressing the BTSM from the BSC. The ASCII 11 characters string for SALUNAME is defined by SIEMENS central service TAC 3 and provided to the commissioners by local TAC 2.IV.7. Creation of BPORT

The object BPORT determines the PCM line configuration. The number of available BPORT is between 2 (COBA only) and 8 (COBA+COSA).

The following parameters have to be set:

layer1ControlTs

layer1Protocol type

layer1RemoteAlarmType

line Configuration

line Impedance (default, no need to configure)

Creation of BPORT

Creation of BPORTIV.8. Creation of LAPDLE

The object LAPDLE identifies the timeslot on Abis used for communication between BSC and BTSE (viewed from BTSE side); on the BSC side is called LAPDLM.The LAPD links are either all 64kbit/s (3 and more TRX per BTSE) or all 16kbit/s (max 2 TRX per BTSE).

The object LAPDLM on the BSC command tree indicates a time slot, which may carry both LADLM and LPDLR type LAPD signaling.

The settings for LAPDLE (BTSE Commissioning) and LAPDLM (BSC Database) must be consistent.

Creation of LAPDLEIV.9. Setting BTSM

The BTSM setting includes the TEI (Terminal Endpoint Identifier). The TEI together with the SALUNAME forms the unique BTSM addresses, which must be set in accordance with the BSC data base.

SET BTSM:BTSM=0, ABISLKSAT=(link type), TEI=(refer to database BSC)

IV.10. Switch BTSM to PH3

The BTSE can be switched to PH 3 with:

Switch button (LMT Control Centre) or with

Command CONNBSC BTSM (connect BTSM to BSC)

After switch to PH 3 the LMT session is closed and a new logon is required.

The LED on the module will show:

The LED on COBA

The LED on COSA

The LED on CU

IV.11. Creation of Enva

For Base Rack with ACTM the range of ENVA is 056

In all other cases (without ACTM) the range is 08

The alarms can be configured as high active or low active:

High active: alarm message starts if the pins are opened.

Low active: alarm message starts if the pins are closed by short circuit.

Alarm severity level can be chosen: critical, major, minor.

IV.12. Remote Inventory

Inventory data are used for the functional and physical identification of HW/FW modules in the SBS. The modules, shelf, etc are equipped with labels. On these labels the product identification data is stored. The main point is to combined the NOB and OB.IV.13. Perform Check and Test

-Hardware Check

We need to check all module state to make sure it works properly. This is can be done with get state the module, this is will be confirmed by the state event report:

Administrative State = UNLOCKED

Operational State = ENABLEDFor all successfully created objects-Check and Test ENVATest on DDF (short and open), monitoring by LMT (message browser window)Result of ENVA test is reported in ENVA Test Result Form (app. 4.2)V. Integration

There are some steps in Integration BTS:

-Get entry permit letter from Customer to each site that passed for transmission connection Create PCMB on BSC

Cross-connect the link from BSC to BTS Give and cross check data for integration to OMC-B, e.g. BSC to connect, PCML (PCM circuit number), PCMB, TEI, TS for LAPDLE (signaling) Request for download database to Siemens Regional VI. Test After On Air

It is mandatory to do some test after the site on air, to make sure the site can be used to make a call and the hardware working properly (e.g. power output CU in spec margin). The tests are:

Power Measurement

In power measurement, it has two kind measurements. Measuring power after CU (before DUAMCO) and after DUAMCO. The power measurement result is reported in CU & DUAMCO Power Measurement Form(See app. 6.1 )Power Measurement after CU (before Combiner)

Power Output from ECU GSM > 48.3 dbm

Power Output from ECU DCS > 47.3 dbm

Power loses in DUAMCO

So, power measurement after DUAMCO = (Power after CU DUAMCO loses)

Test Call

In test call, we need tools named TEMS (product by Ericsson) and GPS. We also need some data: DBCR + coverage plot, map site.

Perform test call in each sector and around the site to check. Test call result is reported in Test Call Report Form (see app 6.2):

All timeslots are created and can be used

Make sure the all time slot are created can be done by dedicated call with channel verification in TEMS

Fig. 4 Window of Channel Verification in TEMS application

The downloaded frequencies are correct (same with DBCR)

Get the all TRX in local connection wit BTS by LMT

The site can hand over to neighbor site (neighbor site list in DBCR)

VII. Work CompletionPenyelesaian PekerjaanBefore leaving the site, there are some activity have to be done.

7.1 Red Correction

Chart below explains the process of Red Correction :

Fig. 6.1 Red Correction Flow Chart

As commissioning work is possible cannot be completed as planned due to unexpected factor therefore Commissioner must update the BSS asplan site documentation by doing red correction.

Red correction is performed by providing a Red Mark in former BSS asplan document for any change in equipment layout, equipment type, dimension etc. Also some photograph is necessary to be taken. List of picture to be taken can be seen in App 7.1 and sample of each picture can be seen in App. 7.2Siemens Supervisor is responsible to decide if a red correction file has been done according to requirement or not.

After a red correction approved by Siemens Supervisor then Commissioner must submit the final red correction document (together with complete BAST doc) to BAST Admin in Siemens regional office.

7.3 Acceptance Test ProcedureAcceptance Test Procedure is performed according instruction explained inside TTP BSS 240 and TTR BS 240 (see App. 7.3). This activity must be performed under Supervision from Siemens Supervisor.

Installation Supervisor will decide if every item of installation result is accepted or not7.4 Incident and Accident Report

If there was any Accident during installation work, then it must be reported by using Accident & Incident Report form (see App. 7.4)

It also necessary to report that tower work has been completed safely by using Tower Work Completin Statement (see App. 7.5)

7.5 BAST DocumentationLast activity from whole Installation is completion of BAST Documentation.

NoDocument NameRequired Signature for BAST Approval

SubcontInst SPVRM

1Work Instruction

Job Safety Analysis

Work Permit

Hazard Identification Record (incidental)

31. Accident Record (if any)

4. ATP Document

ENVA Test Result

CU & DUAMCO Power Measurement

Test Call Report Form

Red Correction Document

Red Correction Photo (softcopy)

6. Work Completion Time Report (WCTR)

7. Timesheet

5. ATP Hand Over

Tab. 6.1 List of complete BAST document

Sample of Work Completion Time Report (WCTR)can be seen in App. 7.6, sample of Timesheet can be seen in App. 7.7, and sample of ATP hand over can be seen in App. 7.8

The complete BAST document will be submitted to Siemens Regional Office for further commercial administrationVIII. AppendixRed Correcrtion File (Approved) + Photo

Y

Commissioner

Correction

Siemens Spv

Red Correction Check

Final Red Correction File & Photo (Draft)

N

Approved?

Red marking of any changes in BSS asplan doc

Taking Pictures

Commissioner

Commissioner

Identify any changes

Commissioning Finished

Commissioner

Submit the approved final red correction to Siemens BAST admin

Commissioner

Company : PT. Siemens IndonesiaBSS Commissioning ProcedureFile : BSS Commissioning Procedure.v.0

COM CS TKSRev. no : Page 9 of 35

Prepare : Donny TambunanRev date : 34 Aug 06Uncontrolled Copy