Alcatel 9157 Laser.pdf

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EVOLIUM A9157 LASER Product Description

Alcatel-Lucent File Reference Date Edition PagePDA957E2.DOC v 2 3DC 21119 0011 TQZZA 25/06/2003 02 1

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EVOLIUM A9157 LASER

Product Description


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SCOPE

Within the GSM-network life cycle, BSS network Operation and Maintenance is one of the most

important challenges for the Mobile operator. By tackling each of the three axis : Call

accessibility, Call retainability and Voice Quality, the operator contributes to the end-user

satisfaction and maximize the revenues.

One of the key differentiator of the Alcatel offer is the fully integrated EVOLIUM tool chain which

addresses not only Network Performance Monitoring, but also Radio Network Optimization,

Network Planning and Alarm statistics for network availability and produces highly valuable

information for the operator in his activities.

All BSS Network Elements which compose the GSM infrastructure provide alarms to the OMC-R

operator for its real-time supervision activities. In order to provide information about the System

Quality, i.e. the global network availability and the BSS system stability, statistics based on alarms

are needed, with a consolidation over a certain period of time. To address this specific need,

Alcatel has developed A9157 LASER 1, which will provide the operator with a consolidated

information based on the alarms statistics.

This product description presents the EVOLIUM A9157 LASER tool (previously named A957 LASER),

associated with the EVOLIUM Base Station System, from release B6.2.

1 LASER means "Lucid network Availability, Stability and Events Reporting"

Network Operation& Maintenance


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CONTENTS

1. REFERENCES...................................................................................................... 4

2. ABBREVIATIONS .................................................................................................. 4

3. OVERVIEW ........................................................................................................ 5

ARCHITECTURE AND WORKING ENVIRONMENT ................................................................. 6

3.1 Hardware platform and physical connections ...................................................... 6

3.1.1 Configurations ................................................................................. 7

3.1.2 Hardware requirements ...................................................................... 8

3.2 Working and operational environment .............................................................. 9

3.2.1

Working environment......................................................................... 9

3.2.2 Operational environment ...................................................................10

3.2.3 Capacity........................................................................................10

4. FUNCTIONNAL DESCRIPTION..................................................................................10

4.1 User interface...........................................................................................12

4.1.1 Network topology management............................................................13

4.1.2 Functions.......................................................................................14

4.1.3 Reports .........................................................................................14

4.2

LASER Reports...........................................................................................14

4.3 Autromatic batch report ..............................................................................16

4.4 Events management ...................................................................................16

4.5 Unavailability management ..........................................................................17

4.6 Administrative functions..............................................................................17

5. CONCLUSION ....................................................................................................17

6. ANNEX - REPORT SAMPLES ....................................................................................18

6.1 Management Report example ........................................................................18

6.2

Operational Report example .........................................................................19


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1. REFERENCES

[1] 3DC 21076 0005 TQZZA EVOLIUM Radio Solutions - A1353 RA OMC-R Product

Description

[2] 3DC 21119 0001 TQZZA EVOLIUM Radio Solutions - A9156 RNO Product Description

2. ABBREVIATIONS

BSS Base Station System

FTP File Transfer ProtocolLAN Local Area Network

MMI Man-Machine Interface

MO Managed Object. A MO represents either a TRX, cell, GPRS cell, BTS, BSC,

MFS, N7

NE Network Element

OMC-R Operation and Maintenance Center - Radio part

WAN Wide Area Network


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3. OVERVIEW

This product description presents EVOLIUM A9157 LASER, the alarms statistics tool integrated to

the EVOLIUM tool chain, dedicated to BSS System Quality monitoring, provided by Alcatel as part

of a comprehensive set of solutions for GSM 850 / GSM 900 / GSM 1800 / GSM 1900 Network

Management . A9157 LASER is also used by Alcatel teams for allinOne services.

In order to follow efficiently the BSS System Quality 2, A9157 LASER allows to

define events 3 based on a set of alarms,

provide synthetic display of alarms, events, operator commands and unavailability on selected

MOs (BSC, BTS, TRX, Cell, etc.) between 2 dates,

build daily, weekly and monthly unavailability indicators for telecom resources

generate automatically reports for management and operational teams.

These functions make the A9157 LASER an essential tool to

Isolate / highlight the main causes of Network Unavailability,

Monitor / detect the System Quality Degradation, at cell/BTS/BSC/TC/Trans level

Synthesize BSS alarms - at a network level

Automation of the reporting

Provide facilities for Root Cause Analysis (RCA) on the network,

Produce metrics for Quality Management

Optimize the maintenance process

2 Monitoring of system stability and availability is gathered under the generic terminology of System

Quality. In such a case, system is defined as BSS part of a GSM network managed by one or several OMC-R in

charge of supervision of voice and data telecom traffic (GSM and GPRS) on an operational region.

3 An event corresponds to a synthesis of alarms issued from customisable detection rules. It is a way for the

user to apply correlation rules on a sequence of alarms to obtain a more synthetic information.


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ARCHITECTURE AND WORKING ENVIRONMENT

3.1 Hardware platform and physical connections

A9157 LASER is a client / server application that can be configured dependent on the size of the

network to be monitored. The solution is therefore fully scalable and can be configured also as a

standalone application for a small network (few hundreds of cells) or as a server with up to 10

clients for a large network if needed (thousands of cells).

Figure 1: A9157 LASER topology

The A9157 LASER solution can be connected to several OMC-Rs which form a Single Operational

Region via a Local Area Network (LAN) or Wide Area Network (WAN) using TCP/IP and FTP

protocols. It gather all the information and provide a global network view to the operator.

BSS and MFS data (alarms, topology) and OMC-R data (operator commands, resource state changes)

are retrieved daily from the OMC-Rs via a batch mechanism, stored in the LASER data-base.

Unavailability indicators are calculated and downloaded to NPA. These indicators are used by RNO,

in order to take into account BSS equipments unavailability in the QoS optimization process.


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3.1.1 Configurations

To fit with different GSM network sizes, four different A9157 LASER configurations are supported.

LASER logical

configurations

Max. Nb of cells B6 LASER hardware

configuration

B7 and B8 LASER

hardware

configuration

Small 250 1 LASER Standalone 1 LASER Standalone

Standard 2000 1 LASER Standalone - 1 LASER Server

- up to 5 LASER

Clients (see 1)

Large 5000 1 LASER Standalone - 1 LASER Server

- up to 10 LASER

Clients (see 1)X-Large B7: 7000

B8: 8000

- 1 LASER Server

- up to 10 LASER

Clients (see 1)

Table 1: LASER configurations

Note (1)

From a hardware point of view , the complete LASER solution offers tailored-made configurations

with a number of clients (or terminals) depending on 2 points :

- the size of the Network : Number of cells managed by the tool,

- the Organization of the Operator and the split of work between entities : Number of

terminals needed for the National Maintenance center, Regional branches, teams dedicated

to the Network Optimization, the Network Quality, BSS Support, etc

- the integration of LASER reporting to the Information System


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3.1.2 Hardware requirements

The A9157 LASER is a PC-based application. The minimum hardware requirements are similar to

the A9156 RNO server and client definition.

In each A9157 LASER server configuration, the hardware is equipped with a high performance

processor, sufficient memory and disk capacity for acceptable performance of the application

(processing of the System Quality, display of reports, storage, etc .).

For the client, a high resolution screen 19" or 21 is needed to match with the sophisticated

graphical user interface of A9157 LASER client. The PCs are equipped with an Ethernet-card for

communication purposes.

The PCs (at the date of the edition of this document) proposed by Alcatel for the A9157 LASER are

the following:

PC configuration PC Client PC Standalone PC Server

Model XW 4000 Proliant ML 370G3

Processor Pentium IV 2.8 GHz Xeon 2.4 GHz

Ram Memory 512 Mb DDRam 1 Gb DDRam

Hard disks

C:\ 4 Go

D:\ remain spaceNTFS

ATA/100 EIDE

40 Go

Ultra 160 SCSI

10000 tr/mn

36 Gb

SCSI Ultra Wide 2

4 x 18 (or 36) Go

SCSI Card with Ext

port

Ctrl Ultra SCSI

160Ctrl Ultra SCSI 160

Ethernet card

10/100 Mbits

X

(integrated)

Video cardNvidia Quadro 4

200NVS 64 Mo AGP

ATI rage XL vido 8

Mb

Monitor 21 " 17 "

RAID 5

controller systemX

Operating

system

Windows 2000 (NT5)

Workstation

Windows 2000

(NT5)

Server with

5 workstations


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3.2 Working and operational environment

3.2.1 Working environment

A9157 LASER server and client are running under a Windows 2000 environment on dedicated

powerful PCs.

The version of A9157 LASER delivered with a given Alcatel BSS release is designed to be used in the

environment of that BSS release and of the previous BSS release.

Independent from its functional evolution, evolutions of the tool are planned to support future BSS

releases (synchronized rodmaps)..


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3.2.2 Operational environment

A9157 LASER offers the possibility to interface with several OMC-Rs and gather all Alarms, State

Changes, Operator commands, topology data in a single tool. This allows to link the operational

organization and the architecture of the tool chain (one region one chain) and manage the

alarms statistics for a complete Operational Region. It is a major benefit for the operator .

Daily, A9157 LASER collects the following data from the OMC-R(s):

BSS/MFS topology,

BSS/MFS alarms,

OMC-R operator commands,

Resource state changes on TRXs, cells, BSCs, GPRS cells, MFSs, N7s.

After the data import period, the relevant data is stored in LASER database. During the parsing

(reading of the files and importing of the results into LASER database), LASER computes events and

unavailability indicators, and purges old data.

3.2.3 Capacity

The following table doesnt give the number of data stored in the data-base. It is only an

indication on the duration. The size of the LASER data-base is fully in-line with the OMC-R traffic

model and its expected data flow.

Data type Storage duration

Monthly indicators 2 years

Daily and weekly indicators (except TRX) 1 year

Daily and weekly TRX indicators 6 months

Events 1 year

Alarms 2 months

The data is automatically purged at expiration of the storage duration.

4. FUNCTIONNAL DESCRIPTION

LASER monitors of the system stability and availability, gathered under the generic terminology of

System Quality, system being defined as BSS part of a GSM network managed by one or several

OMC-R in charge of supervision of voice and data telecom traffic (GSM and GPRS) on an operational

region. LASER is a post-processing application of the OMC-R. From each OMC-R, BSS/MFS alarms,

OMC-R operator commands, resource state changes and BSS/MFS topology are retrieved daily:


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to compute system quality indicators, based on statistics and complete telecom availability,

to generate events which correspond to synthesis of alarms from customizable detection rules

(see paragraph 4.1).

Using LASER, BSS network supervision teams can:

highlight faulty equipments,

measure impact of alarms or events on network unavailability,

distinguish planned/unplanned unavailability in busy/non busy hours,

extract alarms/events/OMC-R operator commands/unavailability related to a MO (BSC, BTS,

TRX, Cell, ) and/or for a period of time,

produce statistics on most frequent alarms and events, filtered and sorted to detect main

impacts on stability and unavailability,

detect system quality degradation.

LASER can be used in the following phases of the network life cycle:

To report indicators chosen from a contractual acceptance protocol, over a defined period of

time, after introducing a new software release, activating a new BSS feature or introducing a

new hardware generation to validate it.

To detect and analyze system quality degradation that occurred on the network in commercial

use (daily supervision).

A9157 LASER reports are generated in Crystal Reports format. Crystal Reports is a third party

application, embedded in LASER, which provides advances means of reports generations. The

A9157 LASER reports can be exported to popular back office application formats as well as in HTML

format for easy publication on an Intranet.


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4.1 User interface

The user interface is the core of A9157 LASER. It is the interface between the operator and the

tool. The operator is provided with all necessary information, commands, processing results etc. in

order to handle and use the A9157 LASER functions.

A9157 LASER distinguishes three types of user rights:

Administrator who has access to all administration facilities and also to LASER application,

Operator or Manager user who have access only to different LASER application.

The table below shows the three profiles available in LASER application.

Application Operation Remark

Operator LASER Client Tree selection

Snapshot

Report

Top N

None.

Manager LASER Client Rules

Simulation

OMC management

Unavailability Origin List

NPA management

+ Operator rights

Administrator LASER Admin

LASER Client

User management

Set up Load start time

Import management

+ Manager rights

A9157 LASER user interface is very intuitive and uses the latest graphical methods to provide aclear representation of any kind of data. So-called tree-gadgets are used to present objects (e.g.

topological tree of MOs, alarms, reports, etc.). Data is displayed in tables or reports and splitters

allow the user to quickly reorganize the user-interface look.


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Figure 2: A9157 LASER - main MMI window

The main A9157 LASER user interface is composed of three areas:

Network topology management (left part),

Functions (middle part),

Reports (right part).

4.1.1 Network topology management

This part of the graphical user interface of LASER represents the topology of the network. EachLASER connected OMC-R is represented in a hierarchical browser. The topology presents the

network / OMC-R / MFS / BSC / N7 / cell / TRX.

Each MO of the topology is displayed with an icon stating whether an item is related to it. An item

is the presence of a basic unavailability that could have occurred on the previous day. This allows

the operator to identify quickly "faulty" MO. A second tree is available and represents only faulty

MOs (thanks to the previously described item value). The user is able to define his own part of the

network topology and to save it as a SubNetwork. This SubNetwork facility allows each user to

quickly define parts of the network he is in charge of, provided he has the sufficient rights.


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Clicking on a MO refreshes the footer view at the bottom of the window. This view provides useful

information about the MO.

Search facilities are offered to quickly locate a MO.

4.1.2 Functions

The functions area provides the list of all the functions available on the selected MO of the

network topology managed area. The different functions are sorted by functional group

(snapshots, reports, Top N, management). A function could be applied on one MO or several MOs,

depending on its definition. Execution of a function on one or more MOs provides a report.

4.1.3 Reports

The report area provides a notebook, with one tab per report. The report is the result of the

application of a function on one or more MOs.

4.2 LASER Reports

LASER reports are the basis of the analysis done daily by the user. High level reports provide

synthesis of the availability and stability of the network while detailed reports help in

troubleshooting the network.

LASER provides facility to create reports such as:

Management report

This report provides a global view of BSS and MFS network stability and availability. From the

selected MO(s) (BSC, BTS, TRX, Cell, ) and observation period, the following information is

displayed:

planned/unplanned (in busy/non busy hours) unavailability per resource type (TRX, cell, BSC,

GPRS cell, MFS, N7) total unavailability per resource type

percentage of availability per resource type

total number of alarms per TRE and per day

cut-off on Air interface per TRE and per day

Operational report

This report displays alarms split into several families from a selection of MOs (BSC, BTS, TRX, Cell,

) and of an observation period. Alarms are split by:


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severity

event type (communication, environment, equipment, processing error, QoS)

BSC alarms

BTS alarms

transmission alarms

MFS alarms

Alarm synthesis report

This report displays the number of alarms occurred on a defined area (set of MOs) and period, split

by BTS, BSC, transmission and MFS sections. Each section regroups a set of particular alarm labels

(for example, a processor restart is counted in the BSC section).

Indicators evolution report

This report displays the evolution of stability and/or unavailability for a selected set of MOs and

an observation period.

Availability evolutions can be consolidated on several resource type (TRX, cell, BSC, GPRS cell,

MFS, N7)

Stability evolutions are displayed on selected stability indicators (BTS reset, TCU reset, etc.).

Alarm evolution report

This report displays the evolution of the number of basic alarms on selected MOs, over a chosen

observation period.

Top N reports

There are three types of "Top N reports":

Top N alarms, OMC operator commands,

Top N availability indicators between 2 dates for selected MO(s), Top N causes of cell unavailability between 2 dates for selected MO(s).

These three reports extract from selected MOs and from an observation period, the top N alarms,

OMC operator commands, availability indicators or causes of cell unavailability to identify the

most frequent problems on the network.

Global transmission evolution report (B8)

This report provides a global view of Transmission alarms. It displays in a cross-table the number

of alarms and duration per day (in second) for following the Terminal Point (TP):


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A TP

Abis TP

Ater TP

AterMux TP

Daily summary transmission report (B8)

The Daily Summary Transmission report displays predefined alarms that occur in a defined area for

the specified day. These predefined alarms have a direct impact on transmission link availability.

A/Abis/ Ater interface troubleshooting report (B8)

Display transmission alarms for A/Abis/Ater Trailing Termination Point.

4.3 Autromatic batch report

This feature allows a LASER Client to launch by batch one given type of operation after an

automatic import of OMC data. This operation could be:

- A retrieval of LASER data

- A production of LASER report

At the login of the LASER client, every result of the batch operation is available in the result part

of the screen.

4.4 Events management

LASER provides the administrator facility to create events. An event is an alarm or represents a list

of alarms (in order to provide the operator with a more synthetic information). Events can be

tested interactively by the user, which means that before deciding to create a new event, it is

possible to test it on a recorded alarm list to ensure its relevancy. Once an event is considered as

good, it is added to the global list of the events. An event is the result of the application of an

event detection rule.

LASER distinguishes row types of events:

Counting events to gather together the same alarms

Correlation events to manage correlation of alarms


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After each daily import of the different alarms, events are extracted and counted to provide

statistics to the user. Those statistics are very helpful to find the impact of events on the system

stability and to correlate them with its unavailability.

LASER is delivered with default event detection rules based on Alcatel expertise on the system

supervision and alarms management domain.

4.5 Unavailability management

This service allows computing basic unavailability and unavailability indicators. It is automatically

triggered during the OMC-R data import phase.

From raw unavailability, current topology and busy hours definition, LASER computes basic

unavailability and stores it in its database. Based on these results, LASER produces or updates

daily/weekly/monthly unavailability indicators to consolidate basic unavailability of a defined

type on a defined network topology level. The unavailability is expressed in 2 different forms:

average resource unavailability (in seconds)

unavailability ratio, linked to the observation period, consolidated at various levels: network,

OMC-R, MFS, BSS, BTS, cell

4.6 Administrative functions

The LASER administrator is able to administrate LASER through a dedicated application. From thisapplication, the administrator can operate the functions like managing the connected OMC-R(s),

defining the busy / non busy hours, defining user access rights, etc.

5. CONCLUSION

A9157 LASER is an essential tool to identify and rank the main reasons for network resource

unavailability. It provides advanced means to diagnose system quality problems, thus improving

visibility on the global system quality.


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6. ANNEX - REPORT SAMPLES

6.1 Management Report example


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Alcatel-Lucent File Reference Date Edition PagePDA957E2 DOC v 2 3DC 21119 0011 TQZZA 25/06/2003 02 19

6.2 Operational Report example

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