Communication System in ONGC

Communication Networks in ONGC G R Kanel, C E ( E & T) Infocom Services Tel Bhawan Dehradun 1

Types of Transmission Media  Guided

Media:

 Copper Wire • Twisted Pair • Coaxial Cable

• Optical Fiber  Un-Guided

(Wireless) Media:

 Radio Waves  Microwave  Satellites  Infrared waves 2

Generations of Cellular Mobile Radiophones

 1G  Advanced Mobile Phone System (AMPS): 1980s, Frequency Modulation (FM), Frequency Division Multiple Access (FDMA), handover between cells, limited roaming between networks

 2G  Global System for Mobile communications (GSM): 1990s, digital-coding of voice, Time Division Multiple Access (TDMA), Subscriber Identity Module (SIM), data communications

 3G  3G Partnership Project (3GPP), Universal Mobile Telecommunications System (UMTS): 1998-, Wideband Code Division Multiple Access (WCDMA), use of GSM network model, global roaming; 2 Mbps data

 4G  All-IP-based, 100 Mbps data

System Building Blocks Telecommunication Systems Data Voice Video SCADA Systems Telemetry & Tele-control Instrumentation Information Systems Data Bases Applications Networking Systems 4

WHAT WE HAVE TODAY ?  Telecom systems     

ICNET-Satellite based backbone MF-TDMA (Satellite based) Leased Lines Microwave Links Regional Networks

 SCADA Systems Telemetry and Tele-control Instrumentation system

5

WHAT WE HAVE TODAY ?

Contd..

Information Technology systems  WAN – Wide Area Network  LAN -Integrated local area networks Enterprise-wide applications  ICE  WEBICE  Internet/ Intranet  EPINET for Producing Assets and Reservoir Management 6

What is Microwave Communication ?

7



Microwave

 This is a radio beam that uses very high frequencies to send and receive data.  Transmission is aimed in a single direction to prevent others from intercepting the signal. Stations are placed ~30 - 50 km apart.  Carries more information than low-frequency RF transmissions.  Microwaves cannot penetrate metal structures. Stations must be visible to each other.  Long-distance can be cover by putting repeater. 8

WHY MICROWAVE COMMUNICATION ?  Freedom from land acquisition rights  Ease of communication over difficult terrain  Directional or omni directional type Communication possible if clear line of sight  Microwave communication requires clear line-of-sight.

9

Why Repeater Required ?

NZR Base Max User Throughput Throughput in Either Fade Receive time Availability Direction Margin (dB) in Mode (%) (%) (Mbps)

JRT Base

Mode

Max Aggregate User Throughput (Mbps)

Fade Margin (dB)

Throughput Receive Availability time in (%) Mode (%)

64QAM 0.92 Dual

117.71

58.86

-8.25

0.0469

0.0469

-8.25

0.0469

0.0469

64QAM 0.75 Dual

96.19

48.10

-2.40

2.3527

2.3058

-2.40

2.3527

2.3058

16QAM 0.87 Sngl

37.42

18.71

2.16

0.0004

0.0004

2.16

0.0004

0.0004

16QAM 0.63 Sngl

26.90

13.45

7.14

99.0342

1.2683

7.14

99.0342

1.2683

QPSK 0.87 Sngl

18.70

9.35

9.91

99.5816

0.5475

9.91

99.5816

0.5475

QPSK 0.63 Sngl

13.45

6.72

12.34

99.7732

0.1916

12.34

99.7732

0.1916

BPSK 0.63 Sngl

6.72

3.36

16.27

99.9064

0.1332

16.27

99.9064

0.1332

10

Why Repeater

Mode

Max User Max Aggregate Throughput in User Throughput Either Direction (Mbps) (Mbps)

64QAM 0.92 Dual

117.30

64QAM 0.75 Dual

Cont..

MT

Neelam

Fade Margin (dB)

Throughput Availability (%)

Receive time in Fade Margin Mode (%) (dB)

Throughput Availability (%)

Receive time in Mode (%)

58.65

-0.93

25.9081

25.9081

-0.93

25.9081

25.9081

95.86

47.93

4.92

66.3627

40.4546

4.92

66.3627

40.4546

16QAM 0.87 Dual

74.57

37.29

8.54

68.4337

2.0710

8.54

68.4337

2.0710

QPSK 0.87 Sngl

18.64

9.32

17.23

80.6905

5.5406

17.23

80.6905

5.5406

QPSK 0.63 Sngl

13.40

6.70

19.66

85.7335

5.0430

19.66

85.7335

5.0430

BPSK 0.63 Sngl

6.70

3.35

23.58

92.4537

6.7201

23.58

92.4537

6.7201

11

Microwave Communications in ONGC  Point-to-point Microwave Radio Links  Process Platform to Process Platform in western Off-shore & Uran to Vasudhara Bhawan, MR, Mumbai  Mehsana – Ahmedabad – Ankleswar – Baroda – Cambay – Hazira in western on-shore (Gujarat).  Nazira - To- GLK,SBS,LKW, Assam  Karikal (Nearvy) to Adiyakmangalam  Tel Bhawan to KDMIPE, Dehradun  Point-to-multipoint links TDMA Radio Link Process Platform-to-well platform in offshore  Vasudhara Bhawan to different offices in Mumbai  Eastern Regions Field Installations –GLK, Lakwa, RDS, JRT Fields GGS, CTF to Assets /Field Offices 12

Proposed Point to Point Microwave links in Western Offshore

18KM

12.5KM

43KM

25KM 37.41KM

31KM

55.75KM

25KM 64KM

13

NQO FIELD

N1

NJ

SI

) Km.

IB SD

2. 1

) Km .

S1-4

SS S1-5

.9

SG

2K m.)

22

IH (15 .

ID

Existing: JRC-1.5 MHz

EE S1-6

SHP IK

IW

SHP FIELD

SY

.2 29

DMA RADIO NETWORK- MUMBAI HIGH

ED

2. 8

SV IE

Existing: JRC-1.5 MHz

EC SU

IJ

EB

SF

II SW

Existing: JRC-1.5 MHz

SQ

(12.7 Km.)

ICP/ICW SR

19.4

BHS

ST

IP

SCA

SE

(6.5

WB

SK

IG

SP

(19. 8

SM

SN

SB

BHS FIELD

2.0

IQ

IA

IF

SJ

WI-6 14 .3

Existing: SRT-1.5 MHz

NL

ICP FIELD IS

NX

.)

NK

LC

LD LB NS N7 NT LE

Km

N5

NR LA

N6

1 8. (1

NU

11

2.2

NQO

NW

NV

NM

IU

N4

(8 Km.)

BHN

.8 11 11 .8

WA

1.4

N8

NO

N3

NI

NP

NH

ND

NB Existing: SRT-1.5 MHz

NE

BHN FIELD

(22.1 Km.)

N2

IN IL B121

IM IT

14

ON-SHORE POINT-TO-MULTIPOINT NETWORK in MR, Mumbai

ANDHERI URAN

M. T. 1

HELIBASE

PRIYADARSHINI REPEATER-1 MAKER TOWER

TEC

T&S

M. DOCK

TDMA RADIO BASE STATION VASUDHARA BHAVAN

BENGAL CHEMICALS

BPCL

RCF TROMBAY

NK O LI I D z RA 2 GH

REPEATER-0 TROMBAY 2 GHz Digital Point tp Point Radio TDMA Radio

LI N K

BUTCHER ISLAND

MOR

UH F

DARULKHANA STORES

2 G H zR A D IO

LI NK

ARCADIA

KARANJIA

NHAVA STORES

15

ASSAM ASSET FIELD COVERAGE ASSAM ASSET

16

JORHAT BASIN JORHAT BASIN

17

Communication Coverage in ER Sibsagar Silchar Rudrasagar

20KM

15KM

200KM JORHAT CTF 12 KM

Nazira

Lakwa

20 KM

58 KM

GGS

49 KM ( NOT TO SCALE

)

Cinnamara Jorhat

Geleki

30 KM

Koraghat/Nambar GGS

40 KM GGS

Borholla

Satcom Link TDMA Link Radio Trunking

Point to Point Dig. Radi 18

WOBU 13 HOP LINK (OLD)

19

PTP Map of Western onshore

20

Mehsana

Existing Commn. Network in WR

KLL

Ahmedabad

NGM AKH AKH KT/KNK KT/KNK 7 7

Cambay

DBK DBK

Vadodara PLJ

Gandhar KOS

Ankleshwar

KOS

Hazira 21

INTEGRATED RADIO TRUNKING NETWORK CAUVERY PROJECT ... .....

... .....

... .....

PRODUCTION INSTALLATION

DRILLING RIG

DSA

MOBILE

... .....

... .....

RADIO BASE STATION ( 4+1 CHNLS)

EPABX MOBILE EXCHANGE

... .....

EPABX

... .....

ADIYAKAMANGALAM INFFRASTRUCTURE

D M R

D M R

PSTN LINES ( DOT ) NERAVY INFRASTRUCTURE

22

What is Satellite Communication?

23

Satellite Communications  Based

on radio frequency (RF) transmissions.

 Satellite

communication systems consist of ground-based or Earth stations (i.e. parabolic antennas) and orbiting transponders.

 The

transponder receives a microwave signal from the ground unit (uplink) amplifies it and then transmits it back to earth (downlink). 24

Overview  Basics

of Satellites

 Types

of Satellites

 Satcom

Technology

Basics: How do Satellites Work  Two

Stations on Earth want to communicate through radio broadcast but are too far away to use conventional means.  The two stations can use a satellite as a relay station for their communication  One Earth Station sends a transmission to the satellite. This is called a Uplink.  The satellite Transponder converts the signal and sends it down to the second earth station. This is called a Downlink.

Point-to-Point Satellite Link

27

Basics: Advantages of Satellites  The coverage area of a satellite greatly exceeds that of a terrestrial system.  Transmission cost of a satellite is independent of the distance from the center of the coverage area.  Satellite to Satellite communication is very precise.  Higher Bandwidths are available for use.

Basics: Disadvantages of Satellites

 Launching satellites into orbit is costly.  Satellite bandwidth is gradually becoming used up.  There is a larger propagation delay in satellite communication than in terrestrial Communication.

Basics: Factors in satellite communication  The distance between an earth station and a satellite (free space loss).  Elevation Angle: The angle of the horizontal of the earth surface to the center line of the satellite transmission beam.  Satellite Footprint: The satellite transmission’s strength is strongest in the center of the transmission, and decreases farther from the center as free space loss increases.  Atmospheric Attenuation caused by air and water can impair the transmission. It is particularly bad during rain and fog.

Basics: How Satellites are used  Service

Types

 Fixed Satellites Service (FSS) • Example: Point to Point Communication

 Broadcast Satellites Service (BSS) • Example: Satellite Television/Radio • Also called Direct Broadcast Service (DBS).

 Mobile Service Satellites (MSS) • Example: Satellite Phones

Types of Satellites  Satellite

Orbits

 GEO  LEO  MEO  Molniya Orbit  HAPs  Frequency

Bands

Geostationary Earth Orbit (GEO)  These

satellites are in orbit 35,863 km above the earth’s surface along the equator.

 Objects

in Geostationary orbit revolve around the earth at the same speed as the earth rotates. This means GEO satellites remain in the same position relative to the surface of earth.

Geosynchronous Satellite Communications

34

GEO (cont.)  Advantages

 A GEO satellite’s distance from earth gives it a large coverage area, almost a fourth of the earth’s surface.  GEO satellites have a 24 hour view of a particular area.  These factors make it ideal for satellite broadcast and other multipoint applications.

GEO (cont.) Disadvantages

 A GEO satellite’s distance also cause it to have both a comparatively weak signal and a time delay in the signal, which is bad for point to point communication.  GEO satellites, centered above the equator, have difficulty broadcasting signals to near polar regions

Low Earth Orbit (LEO)  LEO

satellites are much closer to the earth than GEO satellites, ranging from 500 to 1,500 km above the surface.

 LEO

satellites don’t stay in fixed position relative to the surface, and are only visible for 15 to 20 minutes each pass.

A

network of LEO satellites is necessary for LEO satellites to be useful

LEO (cont.) Advantages

 A LEO satellite’s proximity to earth compared to a GEO satellite gives it a better signal strength and less of a time delay, which makes it better for point to point communication.  A LEO satellite’s smaller area of coverage is less of a waste of bandwidth.

LEO (cont.)  Disadvantages

 A network of LEO satellites is needed, which can be costly  LEO satellites have to compensate for Doppler shifts cause by their relative movement.  Atmospheric drag effects LEO satellites, causing gradual orbital deterioration.

Medium Earth Orbit (MEO) A

MEO satellite is in orbit somewhere between 8,000 km and 18,000 km above the earth’s surface.

 MEO

satellites are similar to LEO satellites in functionality.

 MEO

satellites are visible for much longer periods of time than LEO satellites, usually between 2 to 8 hours.

 MEO

satellites have a larger coverage area

MEO (cont.) Advantage

 A MEO satellite’s longer duration of visibility and wider footprint means fewer satellites are needed in a MEO network than a LEO network. Disadvantage

 A MEO satellite’s distance gives it a longer time delay and weaker signal than a LEO satellite, though not as bad as a GEO satellite.

Other Orbits  Molniya

Orbit Satellites

 Used by Russia for decades.  Molniya Orbit is an elliptical orbit. The satellite remains in a nearly fixed position relative to earth for eight hours.  A series of three Molniya satellites can act like a GEO satellite.  Useful in near polar regions.

Other Orbits (cont.) High

Altitude Platform (HAP)

 One of the newest ideas in satellite communication.  A blimp or plane around 20 km above the earth’s surface is used as a satellite.  HAPs would have very small coverage area, but would have a comparatively strong signal.  Cheaper to put in position, but would require a lot of them in a network.

Frequency Bands  Different

kinds of satellites use different frequency bands.  L–Band: 1 to 2 GHz, used by MSS  S-Band: 2 to 4 GHz, used by MSS, NASA, deep space research  C-Band: 4 to 8 GHz, used by FSS  X-Band: 8 to 12.5 GHz, used by FSS and in terrestrial imaging, ex: military and meteorological satellites  Ku-Band: 12.5 to 18 GHz: used by FSS and BSS (DBS)  K-Band: 18 to 26.5 GHz: used by FSS and BSS  Ka-Band: 26.5 to 40 GHz: used by FSS

Broadcast Link

Multiple receivers

Transmitter

45

Commercial Mobile Broadband Ku-Band SATCOM 





BizJets: 100+ in Service 

Gulfstream V, IV, 450, 550



Bombardier Global Express



Bombardier Challenger 600



Cessna Citation X



Boeing Business Jet

Maritime: 500+ vessels 

Leisure yachts



Fishing vessels



Coast Guard



Merchant ships

Broadband Performance: 10 Mbps forward link, 512 Kbps return link, thousands of subscribers Current Coverage

High Speed Rail: 55+ 

France SNCF TGV

2010 Coverage

Military Mobile Broadband Ku-Band SATCOM •

•

80+ AISR & C2 Aircraft Systems •

SpOps, JCSE, Commando Solo, & Compass Call C-130’s

•

US Army TF-ODIN King Air 300’s

•

USAF Liberty King Air 350ER’s

•

Gov’t customer Pilatus PC-12’s

•

Army Aviation Blackhawk helicopters trial

Private Mobile Networks •

•

3, Regional In-Theater networks

Boeing Broadband Satcom Network •

23 Senior Leadership (VIPSAM) Aircraft

Broadband Performance: Moving • 10 Stryker vehicles toward 20 Mbps forward link, 1 Mbps • Multi-regional coverage return link, hundreds of subscribers

Private Networks

Satcom Technology FDMA

 FAMA-FDMA  DAMA-FDMA TDMA

 Advantages over FDMA

FDMA  Satellite

frequency is already broken into bands, and is broken in to smaller channels in Frequency Division Multiple Access (FDMA).

 Overall

bandwidth within a frequency band is increased due to frequency reuse (a frequency is used by two carriers with orthogonal polarization).

FDMA (cont.) The

number of sub-channels is limited by three factors:  Thermal noise (too weak a signal will be effected by background noise).  Intermodulation noise (too strong a signal will cause noise).  Crosstalk (cause by excessive frequency reusing).

FDMA (cont.)  FDMA

can be performed in two ways:

 Fixed-assignment multiple access (FAMA): The sub-channel assignments are of a fixed allotment. Ideal for broadcast satellite communication.  Demand-assignment multiple access (DAMA): The sub-channel allotment changes based on demand. Ideal for point to point communication.

TDMA  TDMA

(Time Division Multiple Access) breaks a transmission into multiple time slots, each one dedicated to a different transmitter.

 TDMA

is increasingly becoming more widespread in satellite communication.

 TDMA

uses the same techniques (FAMA and DAMA) as FDMA does.

TDMA (cont.) Advantages

of TDMA over FDMA.

 Digital equipment used in time division multiplexing is increasingly becoming cheaper.  There are advantages in digital transmission techniques. Ex: error correction.  Lack of Intermodulation noise means increased efficiency.

Selected for Best in Capacity! The Newest Standards in Satcom Networking Current SATCOM Security Approach

Type 1 HAIPE Network Encryptor for COMSEC Point-to-Point

3000 Fielded

Mesh – Any-to-Any

5000 Fielded

Modem Includes NSA Evaluated FIPS 140-2 TRANSEC

MIL-STD-188165B Modem MD-1366 EBEM

WIN-T & USMC SWAN LINKWAY S2

Hub & Spoke (Client Server)

Shipping Spring 2010

DoD Standard for IP Networks MD-1377 JOINT IP MODEM

Terminal Proposition Faster, Smaller, Cheaper!

Existing…

Ku

2.4m

LAN MGT

    

Battalion Command Post Node

NIPR

2.4m Trailer plus baseband vehicle 3Mbps Mesh 2-8Mbps Point-to-Point $500K/Terminal $8.5-31.6K/Month airtime

    

.7m Portable 5 Mbps Transmit 30 Mbps Receive $50K/Terminal $100-$1000/Month airtime

SIPR

….. Feature

Major problems for satellites  Positioning

in orbit

 Stability  Power  Communications  Harsh

environment

56



Advantages of Satellites:



Covers very large areas



Reaches geographical isolated areas



Disadvantages:

 Expensive  Large  Not

propagation delay (high latency)

very secure; signals can be easily intercepted

 Affected

by atmospheric conditions  Sun transient  Solar eclipses  Less bandwidth supported.

57

ONGC’s SATCOM Networks  C-BAND

SATCOM NETWORKS

 OPSNET  TELNET  DRILLNET ( MCPC )  ICNET ( DAMA & PAMA)  INMARSAT  MF-TDMA 

Ku-BAND SATCOM NETWORKS 58

Technical Parameter of C-Band Satellite : ( INSAT 3E ) Location : 55Deg East Txp No. : 15 Bandwidth : 36Mhz Polarization : Linear EIRP of Txp : 38 dbw Center Frequency of Transponder : Tx Frequency - 6050 Mhz. Rx Frequency - 3825 Mhz. Beacon Frequency : Beacon Frequency # 1 - 4197.504 Mhz. Beacon Frequency # 2 - 4191.00 Mhz. 59

36 MHz SPADE Spectrum

60

0.625 MSPS 3837.8 MHz

0.625 MSPS

3826.7 MHz 3842.6 MHz

(3843 MHz)

0.625 MSPS 3841.0 MHz

0.625 MSPS

0.625 MSPS

3839.4 MHz 3840.2 MHz

0.625 MSPS

0.625 MSPS

5.0 MSPS

3826.7 MHz

3838.6 MHz

0.625 MSPS

0.625 MSPS

1.25 MSPS

CG 0

3829.1 MHz

3828.0 MHz

(3825 MHz)

VATMS

ICENET

3828.34 MHz

(3807 MHz)

3843.0 MHz

3842.2 MHz

3841.4 MHz

3840.6 MHz

3839.8 MHz

3839.0 MHz

3837.0 MHz 3837.4 MHz 3838.2 MHz

3829.5 MHz 3830.0 MHz

3827.5 MHz 3827.6 MHz 3828.4 MHz

ICENET BACKHAUL 3825.9 MHz

3824.74 MHz

3823.94 MHz

Transponder Carrier Allocation

Bandwidth Distribution

Satellite/ Transponder Bandwidth Power NETWORK

ACCESS TECHNOLOGY

OFFSHORE STATIONS

: INSAT – 3E # 15 : 36 MHz : 38 dBW ( 6 dB BO)

No.of Channels

No.of Stations using the facility

SCPC

40

13 offshore plts

VATMS

DAMA/SCPC.

20

Rig.VSAT

MCPC ( Incl Vijay& Bhushan,Sandhani)

11

11

2.82

ICNET-D

SCPC

1

On requirement

0.54

ICNET-Voice

DAMA

45

34

1.60

Field Installations

MFTDMA

11

183

18.40

OCC & CSeries

TDM/TDMA

1+2(TDM/TDMA 4-C-serie

147

1.72

8.82 1.75

Interfernc etc. TOTAL

BW (MHz)

0.35 339

36.00

OPSNET:

…ONGC’s Networks

• In year 1983, Two earth stations were setup at Uran & Offshore platform –BHN based on Dig. SCPC technology. • By 1990, the network was expanded to cover Hazira Complex and two more offshore complexes.

TELNET: • During 1991-93, 9 Earth stations were established at important work centers under Telnet Project. This was an hybrid network based on CFM/Dig SCPC.

TELNET/HOT-LINE EPAX NETWORK INSAT-3E TELNET SATELLITE CHANNELS 51XXX

53XXX

DEHRADUN

DELHI

58XXX 54XXX

DOT HOTLINE LEASED CIRCUITS

NAZIRA

BARODA

57XXX

CALCUTTA

55XXX MUMBAI

56XXX CHENNAI

64

…ONGC’s Networks DRILLNET: 

11 VSATs were installed on offshore Drilling rigs during 1998,for providing Voice & Data communication based on MCPC Technology.

ICNET: 

In 200 DAMA based Voice & Data network was implemented by augmenting 8 stations and setting up 13 new stations/VSATs.  DAMA SkyLinx of M/s ViaSat( SA) for Voice & Data- Radyne.  8 Existing ( 11M-3, 7.5M-2, 4.5M-3) Earth stations augmented  One 6.1 m

Earth

station & 5 nos. 4.5M Earth stations set up .

 7 nos. 3.8M VSATs were set up at new work centers.

Dynamic Allocation of DAMA Channel Satellite

Tx Rx channel

Aloha freq. Out link freq.

Remote1

phone

NMS

Remote2

Remote site send the request on aloha channel to NMS then NMS check the no. asked by remote and NMS asign the channel to the sites by handshaking between them on outlink.

phone

66

EXISTING SATCOM LINKS (VOICE & DATA) 3V&2D 3V&2

7.5M

NAZIRA

-3E T A INS

10 V & 7 D 4V&3D 7.5M

HAZIRA

& 4V 4.5M

3D

3V

5D

D 2 & V 3

3.8M

CAMBAY

3.8M

MEHSANA

&3 8

D

2D

24 V

D 10 10

V&

D

PANVEL

7D

&2

3.8M

&

RAJAMUNDRY

JORHAT

2D

4.5M

AGARTALLA

OFFSHORE Process Platform : 09 Drilling Rigs :10

4.5M

3.8M

V

3D

3D

6D

&

&

3V

&

&

&

2D

SILCHAR

10

3V

8V 4D

JODHPUR

&

4.5M

2D

AHMEDABAD

0D

4V&

4.5M

&

3.8M

D

3V

3V V 24

&1

ANKLESHWAR

&3

KARAIKAL

D

6V

20 V

4V

&

3V

3.8M

11M

4.5M

11M

3.8M

6.1M

4.5M

KOLKATA

4.5M

11M NARSAPUR

BARODA

DEHRADUN

BHS,BHN,ICP, NQO,SHP,BPA, BPB,HRA,NLM

URAN - NMS

MUMBAI

DELHI

CHENNAI

67

…ONGC’s Networks VSAT Expansions at Offshore: 

6 VSATs were installed at various process platforms for providing Voice & Data communication based on MCPC Technology.



VATMS project was implemented during 2006-07 by augmenting 5 existing stations and set up 3 VSATs at Tapti, Suvali & WIN for offshore security purpose.  DAMA Sky Lin of NMS was upgraded.  Uran Earth station and 4 offshore station were augmented with HSDCU for providing Data connectivity.  1 nos. 2.4M VSATs & 2 nos. 3.8M VSATs were set up.

MUMBAI OFF-SHORE COMMUNICATION NETWORK

PRIYADARSHINI

2 Mb Lease Line

RIG RIG

69



THE PROJECT TECHNOLOGY.

WAS

BASED

0N

MF-TDMA



COVERED 183 SATCOM LOCATIONS & 25 RADIO LINKS SPREAD ACROSS THE COUNTRY. PRODUCTION INSTALLATIONS AT VARIOUS ASSETS (3.8M/2.4M) GEOPHYSICAL FIELD PARTIES (2.4M) ON-SHORE DRILLING RIGS (2.4M) AUGMENTATION OF 8 OFF-SHORE DRILLING RIGS( Except Vijay & Bhushan)

MF- TDMA SATCOM SYSTEM  Field

Installations Communication

 Band

width on Demand

 Virtual

Hub Concept

 Mixed

Topology (Star & Mesh)

 Common

Bandwidth for Voice & Data

 VOIP

72

TYPE OF STN

AUGMENTATION

NEW

TOTAL

11M

3

0

3

6.1M

2

0

2

4.5

8

3

11

3.8M

14

38

52

2.4M

0

115

115

TOTAL

27

156

183

Network Diagram of MF-TDMA

4.5mtr

4.5mtr

2.4Mtr

MHN JDH Asset HQ 3.8mtr

6.3 M

Asset HQ 3.8M

4.5mtr

11Mtr

ANK

3.8mtr

2.4Mtr

4.5mtr

BRD=10, AMD=7 ANK=9, CBY=1 MHN=8

4.5mtr

DDN

2.4Mt r

BRD

KOL=5, AGT=4

V-HUB 3.8M

2.4Mtr

URN

4.5mtr

RJY=8, KKL=6 CHN=6

V-HUB S/LAXMI=1 GOA=1

Asset HQ 4.5mtr

3.8Mtr

4.5mtr

OFF/S DR=8

V-HUB

CHN Basin HQ

RJY=8, KKL=7

KOL Asset HQ 4.5mtr

AGT

RJY

6.3 M

MBY

Asset HQ

SIL=3 KOL=4 AGT=4

V-HUB

2.4Mtr

SIL

3.8Mtr

11Mtr

Asset HQ

11Mtr

Asset HQ

V-HUB

DLI

Asset HQ

Asset HQ

JRT

NZR 6.3 mtr

4.5mtr

AMD CBY

JRT=12, NZR=21 SIL=2

DATA CNTR.

JHD=1 W-ON/S=9

3.8 mtr

KKL Asset HQ

Asset HQ Back-up links Primary links In Mesh Topology

74

ONGC Deheradun MFTDMA HUB LEVEL DIAGRAM L2 S W I T C H NMS PC (DDN)

L3 S W I T C H

NCCONGC1

-15dBm

MRT

-16dBm

TT_8

-16dBm

TT_7

-16dBm

TT_6

-16dBm

TT_5

-16dBm

LNA 1:1

TT_4

-16dBm

TT_3

-16dBm

TT_2

-18dBm

TT_1

-94dBm

SSPA 1:1 -45dBm

UP/DN 1:1 -64dBm

At COMBINER: Carrier 0

At SPLITTER:

12:1 1:12Splitter COMBINER

Freq. 1300 MHz

Freq.: 1299.340 MHz -40 dBm

Level: -87.29 dBm Noise:-102.1 dBm C/N : 14.83 dB

Level: -35 dBm -58dBm

IF to L-Band / L-Band to IF -61dBm

-60dBm

-62dBm

Noise: -74.75 dBm C/N:

39.66 dB

75

ONGC PHYSICAL DIAGRAM Mail, Intranet, Internet and SAP Servers

Internet Proxy Server TT1

IP 10.205.46.22 Port 8080

Delhi Router

10.207.2.129

8 MB Leased Line

TT2 10.207.2.161

Dehradun Router

TT3 10.207.2.169

TT4

Catalyst 4506 L3 Switch 10.205.10.236

Cisco L2 Switch

10.207.2.177

TT5 10.207.2.187

TT6 NMS PC MRT NCC (IP 10.205.10.245) (IP 10.205.10.240) (IP 10.205.10.245)

10.207.2.193

TT7 10.207.2.201

Accelnet Server TT8

10.207.2.209

IP 10.207.2.185/29

AVAYA Server 10.205.2.133-137/27

76

In sat 3E

ONGC LOGICAL NETWORK DIAGRAM

Mail, Intranet, Internet and SAP Servers

Internet Proxy Server IP 10.205.46.22 Port 8080

Remote Linkway 1

8 MBPS Leased Line

(ddn-ses1) Cisco router

Connected to Client PC1

Client PC1

VLAN 10

VLAN 4

TT1 Remote Linkway 2

Connected to Client PC2 VLAN 21 (IP 10.207.2.188)

VLAN 19

Client PC2

TT2 Connected to Client PC3 VLAN 11

Remote Linkway 3

TT8 Ethernet 1 Client PC3

Accelnet Server IP 10.207.2.185/29

77

In sat 3E

ONGC LOGICAL NETWORK DIAGRAM Mail, Intranet, Internet and SAP Servers

Internet Proxy Server IP 10.205.46.22 Port 8080

Remote Linkway 1

2 MB Leased Line

VLAN 4

Client PC1

(Delhi) Cisco router

(Mumbai) Cisco router VLAN 21 (IP 10.207.2.188)

Remote Linkway 2

L3 SWITCH Client PC2

L2 SWITCH Remote Linkway 3

Client PC3

MUMBAI 78

ONGC GEO-RED SETUP

Leased Line

Delhi Router

Dehradun Router

Leased Line URAN Router

Layer-3 Switch 10.205.10.236/24

Layer-3 Switch 10.205.127.50/23

Layer-2 Switch 10.205.10.244

Layer-2 Switch IP 10.205.127.236

IP 10.205.10.240/24

NCC Server

MRT IP 10.205.10.242/24

IP 10.205.10.240/24

Backup NCC Server

Backup MRT IP 10.205.10.242/24

IP 10.205.127.247/23

ANCC Server

IP 10.205.127.248/23

AMRT 79

Karaikal Asset DATA CNTR. 4.5mtr

4.5mtr

KKL

11Mtr

4.5mtr

DLI

Asset HQ DDN

M ai l

Basin HQ

3.8Mtr

t erne t n I et & n a r t , In ERP

KKL=7

ER & P dr , I illi ntr ng an SC et, AD Int A ern et

Prod n. SCAD A

CHN

V-HUB

2.4Mtr

KKL= 6 Existing leased line Back-up Sat. links to leased line Primary Sat. links Alt. Sat. links

80

Rajamundary Asset DATA CNTR. 4.5mtr

4.5mtr

RJY

11Mtr

4.5mtr

DLI

Asset HQ DDN

M ai l

Basin HQ

3.8Mtr

t erne t n I et & n a r t , In ERP

RJY=8

ER & P dr , I illi ntr ng an SC et, AD Int A ern et

Prod n. SCAD A

CHN

V-HUB

2.4Mtr

RJY= 8, Existing leased line Back-up Sat. links to leased line Primary Sat. links Alt. Sat. links

81

SATELLITE EARTH STATION (EQUIPMENT BLOCK DIAGRAM)

MOD DATA

HIGH POWER AMPLIFIER (HPA)

DEMOD

INTERFACE

UP CONV.-A

NETWORK MANAGEMENT and CONTROL

COMBINER

MOD

INTERFACE

SWITCHING UNIT

SWITCHING UNIT

UP CONV.-B

HPA-B

DN CONV.-A

LNA-A

DEMOD

SPLITTER

VOICE

HPA-A

SWITCHING UNIT

MOD DEMOD

DN CONV.-B

SWITCHING UNIT

ANTENNA

LNA-B

LOW NOISE AMPLIFIER (LNA)

BASE BAND EQUIPMENTS

82

SATELLITE COMMN. SETUP AT DEHRADUN

INSAT-3E

KDMIPE

TEL BHAVAN 18GHz RADIO Link

HIGH POWER AMPLIFIERS

LOW NOICE AMPLIFIERS

UP CONVERTERS

DN CONVERTERS

RADIO

COMBINER

VOICE CH. RADIO

TELNET/HO TLINE EPAX

SPLITTER

MOD

DEMOD

DEMOD MOD

MOD

DEMOD

24 NETWORK MANAGEMENT and CONTROL

MUX

MUX DATA CH.

38

ROUTER/SWITC H 83

SATCOM NETWORK SPREAD INSAT 3E Northern field

DEHRADUN

NCC Assam field

Rajasthan field

Ahmedabad field

Tripura field

Mehsana field

Coal base methane field Ankleshwar and Gandhar field

Rajamundry field

Offshore Rig VSATS Karaikal field

2.4M VSATs for Drilling rigs and Expl. Field parties (Total No. 115)

Network MFTDMA

11M/ 9.0M 3

7.5 0

Onshore-(Not in TDMA)

1

Platforms & (OCC Augment)

1

OCC (New)

6.1M 2

1

4.5M 11

-

3.8M

2.4M

44

123

2

3

6

10

0

12

1(9M)

1.8 M Total 183

133(5 0)

C-Series

-

-

-

-

-

-

4

TOTAL

4

2

3

11

56

126

137

134 4 339

INTRGATED COMMUNICATION NETWORK

INSAT-3E NZR

DDN F/Ps RIG

JRT

SCOPR MINAR

F/Ps

SRP

DLH

RIGs

F/Ps

JDH AMD

MHN

GGSs RIGs CTFs CTFs

BRHL

RIGs

SLC

GGSs CTFs

GGSs RIGs

BHN

CBY

BRD

KOL

NQO ICP

RIG

RIG RIG

F/Ps

C-BAND SATCOM E/S

BPA

GGSs

URN

RIG SHP RIG

NSR

CTFs

1 RIG

2

PNL HRA

RIG

3 RCF 4

RJY 15

MBY NLM OFFSHORE INSTALLATIONS

OFC LINK (Leased Ckt )

F/Ps

TDMA SYSTEM (Offshore, ER & Mumbai)

KKL GGSs

Note:KU band Network in ER is under implementation.

KU-BAND SAT (210)

CHN

RIGs

S/Vs RIG

RIGs

RIGs HZR

RIG

AGT

ANK

GNDR

BPB BHS

RIGs

TRUNKING SYSTEM ( Nazira & Cauvery Assets ) MARR (K.G, AMD & ANK Assets )

86

Integrated EPAX through ICNET & VOIPs Primary Satellite Link

Primary Satellite Link

Leased/OFC Network

Leased OFC

Leased OFC E&M Trunk

E&M Trunk

IP Trunk

EPAX

EPAX

IP Trunk

E&M Trunk Analog/Digital Phones

EPAX

IP Trunk

E&M Trunk EPAX

Analog/Digital IP Trunk Phones IP Phones

Analog/Digital Phones

Analog/Digital IP Phones Phones IP Phones 87

VoIP – IP Trunking •30 channel •Programmable for 8 to 64 kbps •Additional to E&M •Hard Phones •Soft Phones

Call Centre Applications •3 Agents and One Supervisor •Automatic Call Distribution •Integrated Automated Attendant 88

VOIP Network of ONGC

89

Location Vise VOIP Network

90

91