Upload
mobinilstar
View
222
Download
0
Embed Size (px)
Citation preview
8/8/2019 Building Bridges of Understanding
1/55
Building Bridges of Understanding
TechnicalDepartment
8/8/2019 Building Bridges of Understanding
2/55
Pakistan Mobile Communications (Pvt.) Limited 2
OVERVIEW OF PRESENTATION
BRIEF INTRO TO GSM
TECHNICAL DEPARTMENT ORGANOGRAM
BRIEF FUNCTIONS OF EACH DEPARTMENT
ACHIEVEMENTS
ONGOING PROJECTS
MEASURES BEING TAKEN TO IMPROVE THE SYSTEM/ SERVICES
FUTURE PLANS
BOTTLENECKS
8/8/2019 Building Bridges of Understanding
3/55
Pakistan Mobile Communications (Pvt.) Limited 3
Introduction to GSM(Global System for Mobile Communication)
8/8/2019 Building Bridges of Understanding
4/55
Pakistan Mobile Communications (Pvt.) Limited 4
GSM
History: During the early 1980s, each European country developed its own system, which
was incompatible with everyone else's in equipment and operation.
In 1982 the Conference of European Posts and Telegraphs (CEPT) formed a study
group called the Groupe Spcial Mobile (GSM) to study and develop a pan-European public land mobile system. GSM was later named as Global System for
Mobile Communication.
GSM Objectives:
Good subjective speech quality
Low terminal and service cost
Support for international roaming
Ability to support handheld terminals
Support for range of new services and facilities
Spectral efficiency (maximum number of subscribers per available radio channels)
compatibility with the digital fixed system (ISDN)
Security because of Digital Encryption.
8/8/2019 Building Bridges of Understanding
5/55
Pakistan Mobile Communications (Pvt.) Limited 5
GSM
GSM Specific Features
Mobility:
The GSM subscriber can move nationally and internationally without
changing its own number.
This is possible through the Handover and the Roaming
The handover is the process of moving the communication from one cell
to another cell, in order to keep a good voice quality while the subscriber
is moving.
8/8/2019 Building Bridges of Understanding
6/55
Pakistan Mobile Communications (Pvt.) Limited 6
GSM
Roaming
The roaming is the capability for a PLMN (Public Land Mobile Network)
subscriber to use other PLMN in the same country or in different country,
without changing his mobile equipment of his subscriber number
8/8/2019 Building Bridges of Understanding
7/55Pakistan Mobile Communications (Pvt.) Limited 7
GSM
GSM Network Elements
8/8/2019 Building Bridges of Understanding
8/55Pakistan Mobile Communications (Pvt.) Limited 8
GSM
Mobile Station (MS):
Two main components:
Mobile Equipment (ME)
Subscriber Identity Module (SIM)
Base Station Subsystem (BSS):
Three main components:
BTS (Base Transceiver Station)
BSC (Base Site Controller)
XCDR (Transcoder)
8/8/2019 Building Bridges of Understanding
9/55Pakistan Mobile Communications (Pvt.) Limited 9
GSM
Base Station Subsystem:
BSC (Base Site Controller):
Controls up to 30 BTS
Conveys information to & from BTS
Connects terrestrial circuits & Air Interface channels
Controls handovers between BTSs under itself
Provides connectivity b/w MSC & BTS
BTS (Base Transceiver Station):
Contains RF Hardware
1 - 6 carriers in a BTS Cabinet
7 - 48 simultaneous calls per BTS
Transcoder (XCDR): Converts 64 Kbps PCM circuits from MSC to 16 Kbps
BSS circuits.
Each 30 channel 2 Mbps PCM link can carry 120 GSM- specified voice channels.
B
T
S
B
T
S
BSCAir Interface
B
T
S
MSC
2 Mbps PCM link (E1)
T
R
A
U
8/8/2019 Building Bridges of Understanding
10/55Pakistan Mobile Communications (Pvt.) Limited 10
GSM
OMC (Operation and Maintenance Centre)
NOC (Network Operations Centre):
Monitors Nodes on the Network
Monitors Network Element Statistics
Enables Long Term Planning for entire Network
Monitors OMC regions & provides information to OMC staff
8/8/2019 Building Bridges of Understanding
11/55Pakistan Mobile Communications (Pvt.) Limited 11
HOW A GSM CALL IS ESTABLISHED
8/8/2019 Building Bridges of Understanding
12/55Pakistan Mobile Communications (Pvt.) Limited 12
Mobile to Mobile
MSC
8/8/2019 Building Bridges of Understanding
13/55Pakistan Mobile Communications (Pvt.) Limited 13
Mobile to Landline
PTCL Exchange
MSC
8/8/2019 Building Bridges of Understanding
14/55Pakistan Mobile Communications (Pvt.) Limited 14
Mobile to Mobile Different Networks
MSC (Operator A)
MSC (Operator B)
8/8/2019 Building Bridges of Understanding
15/55Pakistan Mobile Communications (Pvt.) Limited 15
TECHNICAL BRIEF ORGANOGRAM
8/8/2019 Building Bridges of Understanding
16/55Pakistan Mobile Communications (Pvt.) Limited 16
8/8/2019 Building Bridges of Understanding
17/55Pakistan Mobile Communications (Pvt.) Limited 17
ENGINEERING ACCESS NETWORK
CELL PLANNING
8/8/2019 Building Bridges of Understanding
18/55Pakistan Mobile Communications (Pvt.) Limited 18
CELL PLANNING
To Propose and design new sites in existing and new cities and highways.
To participate in New Cell Site Surveys along with other Departments to ensure the
RF suitability of the position being chosen.
Give full RF specifications for new sites design (Antenna type, Azimuths, Tilts, etc).
Also give RF specifications of the Swap Sites.
Responsible for the frequency & neighbor planning of the sites (Both GSM 900 MHz
& DCS 1800 MHz)
Responsible for the traffic planning/stats monitoring of the sites and proposeexpansions to enhance the capacity & remove Congestion.
Drive Test of the Cellular Network to Check the Coverage.
Responsible for the site health reports for the verification of the site objectives and
to diagnose if there is any problem/issue with the working of the site.
Help Optimization in Diagnosing Radio Network issues like Drop Call, Handover
Failure, Interference, Voice Breakup etc.
To perform and analyze drive tests and to make fine tuning by changing antenna tilt,azimuth, frequency etc.
Propose and design Micro cells, repeaters specially in poor coverage areas,
highways, rural areas etc.
To respond to and rectify Coverage related Customer Complaints.
To participate and represent Mobilink in Regulatory Authority (PTA) network audits.
8/8/2019 Building Bridges of Understanding
19/55Pakistan Mobile Communications (Pvt.) Limited 19
How a site is bOrN!
8/8/2019 Building Bridges of Understanding
20/55Pakistan Mobile Communications (Pvt.) Limited 20
ENGINEERING ACCES NETWORK
RF OPTIMIZATION
8/8/2019 Building Bridges of Understanding
21/55Pakistan Mobile Communications (Pvt.) Limited 21
RF Optimization
Responsible for the Optimization of the network performance (Quality) To monitor the stats like CSSR, HSR, DCR, Blocking on daily basis and to
make sure that the threshold is maintained.
Responsible for the troubleshooting of the issues like H/W issue, Call
Quality issue, etc
To perform drive test on daily basis to check the call quality, call
connectivity, GPRS connectivity, etc. Interaction with the other departments like OMC to implement any WO for
any change in the parameters of the site, with BSS for any H/W issue, with
Cell Planning for any frequency changes and to ask for the expansions.
To respond and rectify Quality Related Customer Complaints.
8/8/2019 Building Bridges of Understanding
22/55Pakistan Mobile Communications (Pvt.) Limited 22
ENGINEERING ACCESS NETWORK
BSS PLANNING
8/8/2019 Building Bridges of Understanding
23/55
Pakistan Mobile Communications (Pvt.) Limited 23
BSS PLANNING
Capacity Planning for BSS Network, BSC Boundary planning, LACPlanning for new cities, ATERs requirement (Capacity at back haul)
Regular monitoring of BSS KPIs like Trunk Utilization, Processor
Utilization, Paging and Busy Hour Call Attempts
To plan new BSCs in view of increase in Traffic on city basis to keep the
BSS KPIs within the threshold.
To provide resources and database for creation of new sites in BSC(Base Station Controller)
For GPRS launching in new cities, to provide the H/W resources , to
coordinate b/w relevant departments for execution of project, To provide
plan and complete database creation required for GPRS.
To plan Alcatel swap project (to swap existing sites of Motorola to
Alcatel).
8/8/2019 Building Bridges of Understanding
24/55
Pakistan Mobile Communications (Pvt.) Limited 24
ENGINEERING ACCESS NETWORKTRANSMISSION PLANNING
8/8/2019 Building Bridges of Understanding
25/55
Pakistan Mobile Communications (Pvt.) Limited 25
Transmission Planning
To efficiently & cost effectively provide the transmission media (Wired[Optical Fiber]+ Wireless [Microwave]) for the Integration of all the network
elements in GSM Network like BTS Cell Sites, BSCs and MSCs, Call Centre, IT
and Billing.
To minimize the CAPEX (Capital Expenditure) and OPEX (Operational
Expenditure) of Mobilink by introducing new technologies like Asynchronous
Transfer Mode (ATM) and Frame Relay for both DATA and VOICE
To build our own Optical Fiber Backbone from Karachi to Peshawar To fulfill the capacity needs essential for the growth of the Network from 10
Million to 20 Million.
To synchronize all the elements of GSM Network through standard clocking
mechanism for their efficient performance.
To maintain Quality, Cost and Capacity throughout the planning &
Deployment phase. To participate in New Site Surveys to ensure that Line of Site for connectivity
is available for the acquired location.
8/8/2019 Building Bridges of Understanding
26/55
Pakistan Mobile Communications (Pvt.) Limited 26
LOGISTICS
8/8/2019 Building Bridges of Understanding
27/55
Pakistan Mobile Communications (Pvt.) Limited 27
LOGISTICS & ENERGIZATION
To acquire maximum Cell Sites in the area specified by Cell Planningwithin the search radius.
Ensuring while acquiring the location that it does not create problems for
the community due to its commissioning.
Site is so selected should be acceptable to all associated departments
(Cell Planning, Production, Transmission).
Provision of WAPDA connection to the acquired location. Deal with all Government agencies associated in the process of
acquisition.
To interact / be an interface with all legal departments.
To ensure that there is no hindrance during / after acquisition / later on as
long as the Cell Site is operative.
8/8/2019 Building Bridges of Understanding
28/55
Pakistan Mobile Communications (Pvt.) Limited 28
PRODUCTION ENGINEERING
8/8/2019 Building Bridges of Understanding
29/55
Pakistan Mobile Communications (Pvt.) Limited 29
Production
The main role of Production Engineering department is Physical
construction of new cellular network infrastructure and maintenance of theexisting civil infrastructure for smooth operations.
Production Engineering Department conduct site Surveys for the new cell
sites along with Cell planning, Logistics & Transmission departments.
Selection of the suitable sites Green field or Roof top, their design &
construction with Structural safety standards are the responsibility of
Production Engineering Department. Supervision of the monthly build out targets and their timely completion.
Construction of Switches, BTS sites, BSC sites, Micro/repeater cell sites
installation of the out door antennas as per specs and requirements.
Installation & commissioning of Power Supply systems i.e Generators,
ATS panels, Rectifiers, AVRs, UPSs.
Installation & Commissioning of Fire fighting systems & safety alarm
systems at Cellular sites.
8/8/2019 Building Bridges of Understanding
30/55
Pakistan Mobile Communications (Pvt.) Limited 30
BSS DEPLOYMENT
8/8/2019 Building Bridges of Understanding
31/55
Pakistan Mobile Communications (Pvt.) Limited 31
BSS Deployment
Comes into Role when a site is RFIed from Production.
RFI Visit of the site by Deployment.
Plan for weekly sites considering RFI of sites, Hardware calculations, equipment
availability.
Collection of plans from other departments like Cell Planning, BSS Planning, TXN
Planning etc.
Transportation of all indoor equipment i.e. BTS, rectifier, MW etc.
Request to Production for Out Door and Genset for preferred sites. Installation of Rectifier (IVY), BTS (Motorola), MW (Myson).
Site Equipage in OMC and Cell ID creation at NSS.
Commissioning of site once all a/m process is complete.
Executing the Expansion Plan initiation from Cell Planning.
Detailed plan of sites covering current and proposed config, Hardware calculation,
Hardware availability, additional transmission link requirements, additional cabinets,Radios, additional/replacement antenna requirement, feeder cable, Rectifier modules
etc.
Request for change of expansion plan depending upon HW.
Request for antenna installation (if required)
Commissioning the site once all a/m process is complete.
8/8/2019 Building Bridges of Understanding
32/55
Pakistan Mobile Communications (Pvt.) Limited 32
OPERATIONS ACCESS NETWORK
OAN
8/8/2019 Building Bridges of Understanding
33/55
Pakistan Mobile Communications (Pvt.) Limited 33
OAN
To ensure the network availability round the clock by minimizing thenetwork outage.
To take corrective measures in case of any emergency in Network entity
within the BSS which includes BTS, BSC and the RXCDR
To perform preventive maintenance of Cell sites, BSCs in the Network on a
regular basis.
To take care of Quality related issues in BSS with respect to Hardware inco-ordination with the RF Optimization team.
To take care of Environment related issues (Air conditioners, Fire panels
etc.) at all Cell sites, BSCs and MSCs in co-ordination with the vendors.
To take care of Transmission systems connecting various entities of the
Network including Microwave systems, ATMs, Optical Fiber systems,
Multiplexers etc in co-ordination with various vendors. To commission and integrate new cell sites, BSCs and MSCs with the
existing Network in co-ordination with other sections like Deployment,
Production, Cell Planning, Transmission Planning, NSS etc.
8/8/2019 Building Bridges of Understanding
34/55
Pakistan Mobile Communications (Pvt.) Limited 34
NETWORK OPERATIONS CENTER
NOC
8/8/2019 Building Bridges of Understanding
35/55
Pakistan Mobile Communications (Pvt.) Limited 35
NOC
NOC Coordination: Responsible for Performance Analysis of the Network and this is done through stats
monitoring and generating different network reports.
Responsible for critical follow ups after network expansion and modification
activities to ensure smooth functioning of the network.
Co-ordination reports are sent to different departments of Mobilink to give them a
picture of the entire network and its performance.
OMC Transmission Team: The Team is responsible for monitoring / handling and reporting of all transmission
equipment like Lucent ATM, NEC PNMS, OSCILLOQUARTZ, Tellabs DXX, Huawei
OFS.
Through Lucent ATM GPRS and Inter City MSC connectivity is being monitored
The NEC provides the microwave links where applicable of all existing sites in the
Network.
OSCILLOQUARTZ provides the Clock synchronization for the Entire Network.
Tellabs DXX provides the monitoring of UAN numbers, Inter MSC Connectivity etc.
Huawei OFS provides the monitoring for the entire Intra City Fiber Optic Network.
8/8/2019 Building Bridges of Understanding
36/55
Pakistan Mobile Communications (Pvt.) Limited 36
NOC
NOC configuration Management: Nationwide parameter configuration in BSS Network to resolved the major
RF optimization/cell planning issues. GPRS configuration and troubleshooting GPRS issues network-wide on
cell. Database creation for new BTS sites, BSC, RXCDR. Handling of Quality Complaints, follow-up and immediate resolution.
Network rollout, network expansions, BSC shifting, BTS re-parenting BSSsoftware upgrade, database management, and integration activities atnetwork level (BSS, BSC, MSC).
BSS Fault Management : Day to day activities involved Motorola/Alcatel Fault Management 24x 7
Executions of planned online activities in late evening Hours.
Daily Down Time Report GPRS services Fault Management and recommendations. Interactions with other Engineering Dept( NSS , IN , IN VAS , OAN ) to
trouble shoot combined services. Interactions with CS department for the intimation through G-Mail and
Email.
8/8/2019 Building Bridges of Understanding
37/55
Pakistan Mobile Communications (Pvt.) Limited 37
ENGINEERING CORE NETWORK
NSS
8/8/2019 Building Bridges of Understanding
38/55
Pakistan Mobile Communications (Pvt.) Limited 38
NSS
To ensure successful integration, commissioning and launch of all newentities.
To ensure the timely backup of all entities.
To ensure secure access to all entities.
To ensure 99.9 % availability of all switches throughout the year.
To ensure satisfaction for both internal and external customers ofMobilink.
To ensure proper and timely corrective and preventive action in the region
for all issues.
To ensure that all switches are working as per vendors recommendation
and specification.
To rectify Switch Related Customer Complaints.
8/8/2019 Building Bridges of Understanding
39/55
Pakistan Mobile Communications (Pvt.) Limited 39
ENGINEERING CORE NETWORK
IN OPERATIONS
8/8/2019 Building Bridges of Understanding
40/55
8/8/2019 Building Bridges of Understanding
41/55
Pakistan Mobile Communications (Pvt.) Limited 41
PROJECT MANAGEMENT
8/8/2019 Building Bridges of Understanding
42/55
8/8/2019 Building Bridges of Understanding
43/55
Pakistan Mobile Communications (Pvt.) Limited 43
ACHIEVEMENTS
8/8/2019 Building Bridges of Understanding
44/55
Pakistan Mobile Communications (Pvt.) Limited 44
Growth of PMCL Network
Total No. of Sites in PMCL Networ
10511118
12021279
13911433
1599
1687
1765
1903
205621162137
23502415
25412585
26802736
282228452897
29583032
30593102
320632223289
3348337434093445
3480350935473567
35983615
780
980
1180
1380
1580
1780
1980
2180
2380
2580
2780
2980
3180
3380
3580
3780
6/29/2004
June
9/23/2004
Sep
12/31/2004
Dec
03/25/2005
March
06/01/2005
June
08/25/2005
August
10/8/2005
October
11/23/2005
November
12/25/2005
December
2/4/2006
February
3/8/2006
March
3/30/2006
March
4/22/2006
April
Date
NumberofSite
s
8/8/2019 Building Bridges of Understanding
45/55
Pakistan Mobile Communications (Pvt.) Limited 45
Achievements
15 Million subscribers capacity achieved.
In year 2005, 1566 sites and thirteen Switches, 5 Gateways and 4 IN Platforms were
commissioned in 2005 bringing total number of switches to 23.
600 Sites have been added to date in Year 2006, 40 BSCs and Media Gateways,
NGNs and Soft HLR (HLS) deployed.
Network capacity more than doubled in a small period of 12 months.
Centralized database implementation (DONE) was put into service to serve as asingle point of access for all Engineering Access Network.
Model Tuning done for accurately predicting the coverage and the quality of the
network.
Intra and Inter department standard operating procedures (SOPs).
Centralized project management of Rollout to foresee and overcome any
hindrances affecting the company targets.
Laying and Commissioning of Fiber Optic from ISB to LHR and Pindi Bhattian to
FSD completed.
5th Switching Location i.e. Multan successfully Commissioned.
8/8/2019 Building Bridges of Understanding
46/55
Pakistan Mobile Communications (Pvt.) Limited 46
ONGOING PROJECTS
8/8/2019 Building Bridges of Understanding
47/55
Pakistan Mobile Communications (Pvt.) Limited 47
Ongoing Projects
Expanding GPRS service areas introducing EDGE in Islamabad. Alcatel Swap Project OFJAN Project New Cities Project & New Highways Project. Transmission Backbone through microwave repeaters
Railway Sites Project Special Events Capacity Planning (Basant etc) Data Warehousing Network Audit Micro Layer Planning Bench marking against other operators
Trial of new Value Added Services (PTT etc) NOC Integration. Soft Switches. Long Distance International (LDI) GT Road ISB to LHR will be completed in
a months time, which will be followed by Multan to Shikarpur.
8/8/2019 Building Bridges of Understanding
48/55
Pakistan Mobile Communications (Pvt.) Limited 48
FUTURE PLANS
8/8/2019 Building Bridges of Understanding
49/55
Pakistan Mobile Communications (Pvt.) Limited 49
FUTURE PLANS
20 Million subs network.
21 Million subs capacity.
Approx 2500 sites targeted for the year 2006.
Another 2000 expansions on existing sites to be executed.
36, 000 radios to be added within the network.
Build out of nearly 1900 Macro Sites and 500 Micro Sites.
A number of new Switches and BSCs to be deployed and Commissioned.
Long Distance International and OFJAN project to be completed details on
next slide.
Media Gateways in Remote Cities will be completed.
8/8/2019 Building Bridges of Understanding
50/55
8/8/2019 Building Bridges of Understanding
51/55
Pakistan Mobile Communications (Pvt.) Limited 51
BOTTLENECKS
8/8/2019 Building Bridges of Understanding
52/55
Pakistan Mobile Communications (Pvt.) Limited 52
Bottlenecks
Lease Lines Availability.
Site Acquisition becoming more and more difficult ( Cantonment, Railway
& Difficult Sites) and more awareness in public.
Fast roll out pace Vs optimization challenge.
Maintaining Quality of Service even without affecting the Rollout.
Timely availability of Equipment. Skilled Resource Shortage and Churn.
8/8/2019 Building Bridges of Understanding
53/55
Pakistan Mobile Communications (Pvt.) Limited 53
MEASURES BEING TAKEN TO IMPROVE
THE SYSTEMS/SERVICES
8/8/2019 Building Bridges of Understanding
54/55
Pakistan Mobile Communications (Pvt.) Limited 54
Measures being taken to improve the services
SOPs (Standard Operating Procedures).
Technical Consultants (Aircom and others) being inducted in to improve quality andfunctionality.
More Professional tools being used for Network Planning and Optimization.
Traffic Subs forecasting being done on regular basis to provide additional capacitybefore congestion.
Customer complaints handling mechanism under constant optimization..
Regular Audit of the Network from within and 3rd
parties being done so as not toloose track of the existing network and with the aim of applying a Stitch in Time. Standardized Data base being maintained and steps being taken to commission a
specialist Custom built Data Warehouse for easy and homogenous access by allDepartments.
Fibre Optic Backbone between Core Network ensures that no dependency on anyother department for instance PTCL.
Soft Switches ensure faster rollout, twice the capacity and very minimal spacerequirements.
8/8/2019 Building Bridges of Understanding
55/55
THANKYOU