JAIPUR NATIONAL UNIVERSITYJAIPUR NATIONAL UNIVERSITY

PRACTICAL TRAINING SEMINARPRACTICAL TRAINING SEMINARONON

OVERVIEW OF GSM AND CDMA NETWORKOVERVIEW OF GSM AND CDMA NETWORK

ANDAND

FAULT MANAGEMENTFAULT MANAGEMENT

Submitted to- Submitted by-Submitted to- Submitted by-

Mr. Gajanand Naina BhatiaMr. Gajanand Naina Bhatia

Lecturer, E & C, 5EC-58,Lecturer, E & C, 5EC-58,

JNU. JNU.JNU. JNU.

SUMMER PRACTICAL TRAINING WAS SUMMER PRACTICAL TRAINING WAS COMPLETED AT -COMPLETED AT -

ALCATEL- LUCENTALCATEL- LUCENT INDIA PVT. INDIA PVT. LTD.LTD.

ITS AN JOINT VENTURE WITH ITS AN JOINT VENTURE WITH RELIANCE INFOCOMM LTDRELIANCE INFOCOMM LTD..

IT HANDLES THE IT HANDLES THE GSM AND CDMAGSM AND CDMA NETWORKS OF RELIANCE NETWORKS OF RELIANCE

INFOCOMM LTD.INFOCOMM LTD.

TOPICS TO BE COVERED- TOPICS TO BE COVERED-

OVERVIEW OF GSM AND CDMAOVERVIEW OF GSM AND CDMA

BASIC NETWORK ARCHITECTUREBASIC NETWORK ARCHITECTURE

TO KNOW THE VARIOUS EQUIPMENTS TO KNOW THE VARIOUS EQUIPMENTS USED IN THE NETWORKUSED IN THE NETWORK

FAULT MANAGEMENTFAULT MANAGEMENT TROUBLE TICKETING AS AN EFFICIENT TROUBLE TICKETING AS AN EFFICIENT

WAY TO DETECT AND RECTIFY THE WAY TO DETECT AND RECTIFY THE VARIOUS FAULTS IN THE NETWORKVARIOUS FAULTS IN THE NETWORK..

TYPICAL NETWORK TYPICAL NETWORK ARCHITECTUREARCHITECTURE

FAULT MANAGEMENTFAULT MANAGEMENT

The goal of fault management is to The goal of fault management is to recognize, isolate, correct and log faults in recognize, isolate, correct and log faults in

the network.the network.

This is accomplished with the help of This is accomplished with the help of Trouble Ticketing.Trouble Ticketing.

TROUBLE TICKETING (TT)TROUBLE TICKETING (TT)

Trouble Ticket is a management that Trouble Ticket is a management that accounts for the creation of Trouble accounts for the creation of Trouble

Tickets by the Surveillance team in NNOC Tickets by the Surveillance team in NNOC to know the nature of the fault and for to know the nature of the fault and for

Calculation of the OutageCalculation of the Outage..

NNOC- National Network Operations NNOC- National Network Operations CenterCenter

WHY TROUBLE TICKET IS CREATED ?WHY TROUBLE TICKET IS CREATED ?

A TT is generated to keep into account the type A TT is generated to keep into account the type of fault that has happened in a particular site, to of fault that has happened in a particular site, to troubleshoot that fault and to calculate the troubleshoot that fault and to calculate the Outage.Outage.

Based on the type of fault TT is assigned to Based on the type of fault TT is assigned to respective teams & a Work Order is created so respective teams & a Work Order is created so that the teams can work on the fault.that the teams can work on the fault.

Depending on the Trouble Ticket corresponding Depending on the Trouble Ticket corresponding Fault Ticket is generated by the respective Fault Ticket is generated by the respective teams.teams.

SOFTWARES USED AT SOFTWARES USED AT ALCATEL-ALCATEL-LUCENTLUCENT FOR TROUBLE TICKETING FOR TROUBLE TICKETING

Remedy User or Netkt Remedy User or Netkt

AndAnd NetracNetrac

Its a trouble management system that Its a trouble management system that enables Communication Service Providers enables Communication Service Providers

to effectively manage the trouble to effectively manage the trouble resolution process.resolution process.

DIFFERENT TYPES OF TROUBLE DIFFERENT TYPES OF TROUBLE TICKETTICKET

Trouble Ticket for OSP IssuesTrouble Ticket for OSP Issues

Trouble Ticket for TRANSPORT Trouble Ticket for TRANSPORT IssuesIssues

Trouble Ticket for ISP IssuesTrouble Ticket for ISP Issues

TYPES OF ALARMS (Vendor-Wise) FOR TYPES OF ALARMS (Vendor-Wise) FOR WHICH TT HAS TO BE CREATEDWHICH TT HAS TO BE CREATED

CDMA:CDMA:

Lucent : All RCS signalling links are Lucent : All RCS signalling links are downdown

Huawei : Abis signaling link Huawei : Abis signaling link interruptinterrupt

ZTE : No CCM/BDM detectedZTE : No CCM/BDM detected Telos : Gateway out of serviceTelos : Gateway out of service

Cont…Cont…

GSM:GSM:

RCOM GSM : LAPD OML Fault RCOM GSM : LAPD OML Fault RTL (ALU) : CELL [43] LOSS-OF-ALL-RTL (ALU) : CELL [43] LOSS-OF-ALL-

CHAN [3]CHAN [3] RTL (ZTE) : All LAPD link of OMU in the site RTL (ZTE) : All LAPD link of OMU in the site

and BSC lostand BSC lost RTL (MOTO) : [0] Last RSL Link Failure -- RTL (MOTO) : [0] Last RSL Link Failure --

FMIC (0) – CriticalFMIC (0) – Critical

PROCEDURES FOR CREATING PROCEDURES FOR CREATING DIFFERENT TYPES OF TROUBLE DIFFERENT TYPES OF TROUBLE

TICKETTICKET

As the Alarms appear in the NETRAC for the As the Alarms appear in the NETRAC for the Site/s, We should first check the Status of the Site/s, We should first check the Status of the

Site/s. After that check whether the TT is already Site/s. After that check whether the TT is already there or not for the Site/s.there or not for the Site/s.

• If TT is there for the Site/s, We should not If TT is there for the Site/s, We should not create the TT for the present Site Alarm.create the TT for the present Site Alarm.

• If TT is not there for the Site/s, We have to If TT is not there for the Site/s, We have to create the TT by using To TT application create the TT by using To TT application present in the NETRAC.present in the NETRAC.

OSP TTOSP TT

A trouble ticket to be generatedA trouble ticket to be generated

AN OPEN TT-AN OPEN TT-

A CLOSED TT -A CLOSED TT -

A TRANSPORT TT- A TRANSPORT TT-

ISP TTISP TT

Depending upon the type of fault in BTS Depending upon the type of fault in BTS we create the INSIDE PLANT TT.we create the INSIDE PLANT TT.

Do not create work order for ISP TTs Do not create work order for ISP TTs These TTs are created for our knowledge.These TTs are created for our knowledge.

ISP issues should be given high priority & ISP issues should be given high priority & should be solved asap.should be solved asap.

THANK YOUTHANK YOU