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EVOLIUM A9157 LASER Product Description
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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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6.2 Operational Report example
End of document