Transcript Telecom notes

LTE tutorial
Telecommunication
Companies
4G Technology
3G
iPhone
Funny Telecom Gallery
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1.Reliance Globalcom integrates Hawk
cable system with network
Reliance Communications under-sea cable arm, Reliance Globalcom
has integrated Hawk Cable System with its global network in a
move that adds capacity and will benefit customers in India, middle
east, Europe and the US.
“We are delighted with the seamless integration of the Hawk
submarine cable system with Reliance Global Network… Our
existing customer base of over 37,000 corporate in India and over
1,400 corporate in Europe and USA, along with over 200 carrier
customers will benefit from this lowest latency network,” Reliance
Globalcom’s President and CEO Punit Garg today said in a
statement.
Under-sea cable system is a vital link to facilitate internet and other
telecom services across countries.
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To be continue….
With this, the company has interconnected all its under-sea cable
system which enhances “the capability of carrying 5 million HD
quality interactive video channels simultaneously.”
The Hawk Cable System was earlier providing connectivity between
Yeroskipos in Cyprus and Marseille in France. India was connected
to it through Flag cable system of company network.
Reliance Globalcom has now connected Hawk cable system with its
global network through Alexandria in Egypt.
Reliance Globalcom Network connects India using the FEA cable
system (Mumbai to London) and the Falcon cable system (Mumbai
to Suez in Egypt). Through the integration with the Falcon cable
system in Suez, Egypt, Hawk extends that connectivity to Europe.
Hawk cable system was built by Reliance Globalcom last fiscal to
initially set up Mediterranean Gateway and Hub at Cyprus.
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2. What is GSM ?
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GSM stands for “Global System for Mobile Communication”.
Previously it was known as “Group Special Mobile”. GSM is
combination of two multiple access technologies, TDMA ( Time
Division Multiple Access) and FDMA (Frequency Division Multiple
Access).
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3. What is Cell and what is Cellular
System ?
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A Cell is basic “construction block” of a cellular system. One cell
denotes geographical area covered by one trans-receiver. The actual
size of cell depends upon several factors like the environment,
Number of users and height of Antenna, Power of BTS etc.
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In short we can say that cell is smallest radiating unit in mobile
network.
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A series of cells is used to cover a large geographic area. A cellular
system is a mobile network distributed over land areas called cells,
each served by at least one fixed-location transceiver, known as a
cell site or base station.
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Each cell uses a different set of frequencies from neighboring cells
to avoid interference
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4. What is HSDPA ?
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HSDPA : High-Speed Downlink Packet Access
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HSDPA stands for high-speed downlink packet access. It provides
faster download speeds. It is an upgrade form of UMTS.
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HSDPA provides downlink data rate upto 7.2 Mbps.
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HSDPA is High-Speed Downlink Packet Access and HSUPA is HighSpeed Uplink Packet Access. Both together are called HSPA.
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To be continue….
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Special Features of HSDPA
Adaptive modulation and coding (AMC)
Multi-code operation
Hybrid Automatic Repeat Request (HARQ)
Higher DL peak rates (up to 7.2 Mbps)
De-centralized architecture where scheduling functions are moved
from the Radio Network Controller (RNC) to Node-B thus
reducing latency and enabling fast scheduling.
In HSDPA Peak data download rate is increased significantly higher
than 2Mbps. HSDPA is a new protocol for mobile telephone data
transmission. It is known as a 3.5G (G stands for generation)
technology which is up gradation
of 3G 3gpp release which is suitable for video calling and mobile TV.
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5. DoT may invoke guarantees given
by Airtel
The Department of Telecom (Dot) intends to invoke bank
guarantees given by service provider Bharti Airtel and has written
to banks in this regard as the company has not paid Rs 350 crore
penalty imposed on it for providing 3G services outside permitted
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areas in violation of rules.
6. What is Wimax technology ?
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WiMAX stands for “Worldwide Interoperability for Microwave
Access”. Wimax is used for 4G wireless technology. It has also
called 802.16 as per IEEE. WIMAX works similar as Wi-Fi but speed
is greatly enhanced. Also WIMAX can serve greater distance rather
than WI-FI and can serve to more users simultaneously than Wi-Fi.
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Telecommunication Companies
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Telecommunication companies can be categorized in many
categories. There are different Network Operators, Hardware
manufacturer, service providers, and infrastructure companies. Here
is a directory listing for telecom companies with there work profile,
services and working area.
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Aircel Cellular Limited
Aishwarya Telecom Ltd
Aksh Optifibre Ltd.
Anco Communications Ltd.
Andrew Antenna
Astra Microwave Products Ltd.
Avaya Global connect Ltd
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B
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Bhagyanagar India Ltd.
Bharat Sanchar Nigam Limited
Bharti Airtel
Bharti Teletech
Birla Ericsson Optical Ltd.
C
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Cable Corporation of India Ltd.
China Netcom Group (CNC)
CMI Ltd.
Cybele Industries Ltd.
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D
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Delton Cables Ltd.
Dhanus Technologies Ltd.
E
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Cable Corporation of India Ltd.
China Netcom Group (CNC)
CMI Ltd.
Cybele Industries Ltd.
F
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FCI OEN Connectors Ltd.
Finolex Cables Ltd.
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G
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Gemini Communications Ltd.
Goldstone Infratech Ltd
GR Cables Ltd.
GTL Infrastructure Ltd.
Gujarat Optical Communication Ltd.
Hartron Communications Ltd.
Hathway Bhawani Cabletel & Datacom Ltd
HFCL Infotel Ltd
Himachal Futuristic Communications Ltd.
Hindustan Cables Ltd.
Huawei
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Idea Cellular Ltd.
Intergrated Digital Info Services Ltd
ITI Ltd
Kaleidoscope Films Ltd
Kathrein
Kavveri Telecom Products Ltd.
Krone Communications Ltd.
Mahanagar Telephone Nigam Ltd
MIC Electronics Ltd.
Mobile Tele Communications Ltd
Motorola
MP Telelinks Ltd.
MTS
Munoth Communication Ltd
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Nelco Ltd.
Nokia India
Nokia Siemens Networks
Nortel
NTT DoCoMO
Nu Tek India Ltd
Opte Tecommunications Ltd
Orange (France Telecom)
Paramount Communications Ltd.
Precision Electronics Ltd.
Punjab Communications Ltd.
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Qualcomm India
Qwest Comm Intl
Reliance Communications Ltd.
RPG Cables Ltd
Shyam Telecom Ltd
Softbank Corp.
Southern Online Bio Technologies Ltd
Spice Communications Ltd.
Spice Mobiles Ltd
Sprint Nextel Corp.
Sterlite Technologies Ltd.
Sujana Towers Ltd
Surana Telecom & Power Ltd
Surana Telecom Ltd.
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Swisscom
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T
•Tamilnadu Telecommunications Ltd
•Tata Teleservices (Maharashtra) Ltd.
•Tata Communications Ltd
•Telecom Italia
•Telecom Regulatory Authority of India
•Telecommunications Consultants India Ltd.
•Telenor
•Telefonica
•Telstra Corp.
•Telephone Cables Ltd.
•Tulip Telecom Ltd
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Uninor
Unitech Wireless
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v
•Valiant Communications Ltd.
•Verizon Comm
•Videsh Sanchar Nigam Ltd.
•Vindhya Telelinks Ltd
•Vodafone Group Plc
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XAHT
XL Telecom & Energy Ltd.
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ZTE
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4G Technology
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4G stands for fourth generation of mobile telephony. It is successor
of 3G standards where speed is highly increased.
4G technology is based on Open Wireless Architecture (OWA)
which provides cost-effective and spectrum-effective high speed
wireless transmission.
In March 2008, the International Telecommunications Union-Radio
communications sector (ITU-R) specified a set of requirements for
4G standards, named the International Mobile Telecommunications
Advanced (IMT-Advanced) specification.
According to these specifications 4G service will provide 100 Mbps
for high mobility communication (such as from trains and cars) and
1 Gbps for low mobility communication (such as pedestrians and
stationary users).
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To be continue….
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4G system provides mobile ultra-broadband Internet access. Using
4G technology laptops with USB wireless modems, smartphones,
other mobile devices can access internet with much higher speed.
Such a higher speed is very suitable for mobile web, IP telephony,
gaming services, high-definition mobile TV, video conferencing, 3D
television and Cloud Computing.
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3G iPhone
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The Iphone is 3G smartphone. Iphone was developed by Apple
inc.
The Iphone 3G comes with preloaded the latest version of iPhone
OS.
It work on 2G GSM Network 850,900,1800 & 1900 band and 3G
Network HSDPA 850,1900 & 2100 band.
Mini SIM (Subscriber Identity Module)card is used in this phone.
BODY Dimensions for this phone is 115.5 x 62.1 x 12.3 mm (4.55
x 2.44 x 0.48 in) and Weight is 133 gm.
Its display type is TFT capacitive touchscreen with 16M
colors.Resolution is 320 x 480 pixels(3.5 inches i.e ~165 ppi pixel
density) and Multitouch. It has Internal memory 8/16 GB and 128
MB RAM and has no slot for external memory.
Data connectivity can be achieved using GPRS, EDGE, HSDPA or
Wi-Fi 802.11b/g.
Iphone 3G has Bluetooth and 2 MP primary camera 1600×1200
pixels
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Funny Telecom Gallery
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A big telecom
meeting ongoing here
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Best Microwave
Transmission
Engineer of 2013
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To be continue…..
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Echo friendly towers
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Link is clear now
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To be continue…..
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Guess what is the AMSL
here ….World’s Highest
3G cell site: Mount Everest
Base Camp, Nepal
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2G scam in India
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To be continue….
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Touch the sky………….
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RF Telecom engineer at
work !!
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To be continue….
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Very Funny Cheap Logistic
services
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Funny COW site : Cell
on Wheels
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END
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Thank You
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