1 CHAPTER-1 1.1 INTRODUCTION A mobile phone (also known as a cellular phone, cell phone and hand phone) is a device that can make and receive telephone calls over a radio link while moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. By contrast, a cordless telephone is used only within the short range of a single, private base station. In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, internet access, short range wireless communication (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these and more general computing capabilities are referred to as smart phones. Mobile communications have been around for longer than you might think. Radiophones, for example, were first demonstrated around 1990 when Mr. Cho was created an invention allowing telephone communications to be established via radio between the shore and the ships at sea used by the navy. Hand held mobile radio communications devices have been around since 1973. India’s mobile phone industry is one of the fastest growing industries in the world. Mobile phones in India were formally launched in August 1985. For the first few years after the advent of mobiles, monthly subscriptions were added to the tune of 0.05 to 0.1million in India. Subsequently the subscriber base stood at 10.5million in December 2002. The Indian mobile phone industry has entered a phase of boom due to many proactive measures taken by various licensors and regulators. Two million mobiles subscribers were added every month in
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Transcript
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CHAPTER-1
1.1 INTRODUCTION
A mobile phone (also known as a cellular phone, cell phone and hand phone) is a device that
can make and receive telephone calls over a radio link while moving around a wide
geographic area. It does so by connecting to a cellular network provided by a mobile phone
operator, allowing access to the public telephone network. By contrast, a cordless telephone
is used only within the short range of a single, private base station.
In addition to telephony, modern mobile phones also support a wide variety of other
services such as text messaging, MMS, email, internet access, short range wireless
communication (infrared, Bluetooth), business applications, gaming and photography.
Mobile phones that offer these and more general computing capabilities are referred to as
smart phones.
Mobile communications have been around for longer than you might think.
Radiophones, for example, were first demonstrated around 1990 when Mr. Cho was created
an invention allowing telephone communications to be established via radio between the
shore and the ships at sea used by the navy. Hand held mobile radio communications devices
have been around since 1973.
India’s mobile phone industry is one of the fastest growing industries in the world.
Mobile phones in India were formally launched in August 1985. For the first few years after
the advent of mobiles, monthly subscriptions were added to the tune of 0.05 to 0.1million in
India.
Subsequently the subscriber base stood at 10.5million in December 2002. The Indian
mobile phone industry has entered a phase of boom due to many proactive measures taken by
various licensors and regulators. Two million mobiles subscribers were added every month in
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India from 2003 to 2005. The two other countries with more mobile phones then India are
USA and China.
Mobiles phones have become ubiquitous in our society. In fact, they have been
around for several decades in some form or another. The technology began shaping in the
late 1940s, when the idea of mobile phone was introduced.
HTC, being one of the fastest growing companies in the mobile industry, is introducing
newer handsets with stunning applications every year. The company aims in developing
smarter devices to best satisfy the needs of the consumers. Established in 1997, the company
commenced its business by introducing devices of popular brands in the market. HTC
Corporation experienced wide growth by bringing quality products of leading industries and
started its services under its own name since the year 2006.Though HTC Electronics has
gained corporate affairs in other business areas such as the digital media, the tablet, the
telecommunication network business area of HTC became a record breaker. We are
dedicated to creating a customized user experience and believe that each mobile device needs
to fit its owner, and not the other way around. HTC has been producing cellular device that
include mobile phones sensationalized phones, and the most innovative of them all the
Mobile Intelligent Terminals which are considered hybrid device.
The present line up of HTC mobile phones which comes with excellent mobile phone
deals include the most beautiful technology mobile phones namely: HTC Explorer, HTC
Desire, HTC Cho Cho, HTC sensation, HTC one X, HTC one X+(plus), HTC desire C, HTC
desire X, HTC Evo pro. The latest luxurious mobile phones introduced in Singapore are
known for its stylish designs, innovative and excellent features, that all comes with high-tech
multimedia features. The striking designs and uncompromised features, functions, and
performances of HTC mobile phones will continue to rule the mobile phone industry around
the world.
HTC sense offers the users instant capture of images, HD video recording, fantastic
graphics and animation, thus a delightful multimedia experience. HTC ChaCha and Salsa
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arrives with unique Facebook button for getting access to Facebook services and updates in a
single touch. Operated on Android Gingerbread version OS, these smart phones offer the
option of sharing updates while performing other applications. Sensation 4G possess the
most advanced technology with HTC sense, which is the perfect handset purely meant for
entertainment.
Users finds easy in accessing multimedia content in their convenience. All the HTC
mobile phones are made available for the purchase of consumers through exclusive deals
offered by top networks. HTC is popular worldwide for the creation of innovative
Smartphone. With the arrival of newer technology phones every year, HTC Corporation is
finding faster growth in the mobile sector. Latest news about HTC mobiles states that
consumers can enjoy most advanced technology in the upcoming HTC phones.
1.1.1 ORIGIN OF MOBILE PHONES
Mobiles phones are looked upon as a modern invention. However, their origin can be
traced back to the invention of telephone way back by Graham Bell 1870s and success in the
capture of radio message. Since those events, these basis technologies have merged and
shaped themselves together as mobile phone.
Summing up the history of mobile phones we can say that the telephones were the
beginning of the whole system. Radio charted the progress of radio communications. Both
technologies came together to bring radio telephones. Then came Cellular which marked the
development of popular cellular mobile phone systems. Another step was digital which led to
the emergence of a digital standard, GSM. Satellites helped mobile phones emerge as the
preferred medium of communication at the global level.
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1.1.2 WIRELESS COMMUNICATION
The development of wireless communication systems started in the 1930s with the
use of 'Walkie-talkies' during the Second World War to enable foot soldiers to stay in contact
with the headquarters. In 1946, AT&T Bell introduced the first commercial radiotelephone
service in the US, which allowed communication between mobile users in cars and the public
fixed network. In the 1960s, Bell Systems launched the Improved Mobile Telephone Service
(IMTS), which laid the basis for commercial-sector mobile communications. Developments
in microprocessor technologies in the late 1970s and early 1980s enabled the introduction of
the reliable wireless communications system, the so-called first generation.
1.1.3 TECHNICAL OVERVIEW OF COMMUNICATION
An essential part of a mobile phone network's tasks is to monitor the location of every
registered mobile phone device, as mobile phone users are free to roam throughout the
coverage area of a cellular network. Therefore the network must possess some way to track
mobile phones so that it can successfully route incoming calls and text messages to them.
Mobile phone location data is an inherent feature of mobile communication and for this
reason some technical background to mobile communication is provided in this section.
1.2 G TECHNOLOGY
G technologies represent a state of development between 2G and 3G and have
overcome the limited data and primarily voice- centered services of the 2G networks .In the
1990s and early 2000s higher transmissions rates and always-on connectivity were enabled
by General Packet Radio Services (GPRS). Data transmission speeds were now 10 times
faster with 115 kb per second and based on packets witching technology. Packet switching
optimizes the use of bandwidth available in a network and minimizes the time it takes for
data to travel across the network. The increased data transmission rates of 2.5G compared to
earlier systems help to transfer data such as mobile internet content.
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1.2.1 FIRST GENERATION NETWORK-1G
The first generation wireless technologies, also known as 1G, were relatively simple
and used analogue signals. Mobile phone handsets based on 1G technology were mainly used
by government agencies and the military before this technology came into general use in the
business domain in the 1980s. The systems in Europe and the USA had in common that they
provided coverage of a very large area by using only one transmitter mast. The coverage area
of a mast was fairly large, up to 150km.
1.2.2 SECOND GENERATION NETWORK-2G
In the late 1980s and early 1990s, the popularity of wireless communications grew
and increased the demand for network capacity. Together with the disadvantages of analogue
1G system, this led to the development of the second generation wireless system based on
digital technology. Digital signals have different transmission properties than analogue
signals and use binary coding using sequences of 0s and 1s to construct a signal's unique
pattern. Digital signals use digital samplers and codes to convert analogue voice data into
digital data.
1.2.3 THIRD GENERATION NETWORK-3G
Third generation mobile telephony (3G) is the successor to the 2G and 2.5G systems.
3G improved previous systems by providing enhanced security and encryption features,
improvements in screen displays and the ability to handle multimedia data, such as graphics
and video streaming. 3G allows faster data exchange with data transmission rates up to
1920kbits per second, which enables the support of greater voice and data customers.
Support can be provided for a wide variety of mobile equipment. 3G technologies were first
introduced in Japan in 2001 and spread to Europe and the USA in 2002. UMTS (Universal
Mobile Telecommunications System) is the third generation mobile phone technology mainly
used in Europe and also in Japan.
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1.2.4 GSM TECHONOLOGY
GSM is an open non-proprietary and interoperable digital standard for cellular mobile
systems operating in the 900 and 1800 MHz band. In 1986, a number of different prototype
systems put forward by companies and consortia from different European countries were trail
and led to the agreement of the main characteristics of the new system. GSM is still in use to
date by all European countries and has also been adopted in other continents, such as Africa
and South America. There are over 540 million GSM subscribers in Europe, plus another 18
million Europeans using 3GSM networks, which are the 3G service delivered over the
evolved GSM core network.
1.3 COMPANY PROFILE
HTC, being one of the fastest growing companies in the mobile industry, is
introducing newer handsets with stunning applications every year. The company aims in
developing smarter devices to best satisfy the needs of the consumers. The latest release,
HTC Wildfire-S is expected to attract large number of consumers with its advanced technical
specs and cheaper price. Established in 1997, the company commenced its business by
introducing devices of popular brands in the market. HTC Corporation experienced wide
growth by bringing quality products of leading industries and started its services under its
own name since the year 2006. HTC Advantage arrived with prominent features like 5 inch
screen and QWERTY keyboard, which brought the company enough popularity among
consumers. HTC Shift and Touch followed the HTC Advantage with powerful applications,
which made HTC excel in Asian, European and US markets.
The achievements made by HTC Corp, in the past few years is something impressive.
HTC products are known for its innovation and elegant design, which certainly meet the
demands of the users. HTC was the first to introduce the products like color palm PC,
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Microsoft pocket PC & wireless pocket PC, Microsoft powered 3G phone and tri-band
UMTS 3G device. Updated news about HTC mobiles is available online with pictures,
videos and reviews.
It is clear from the introduction of HTC Sensation 4G, HTC ChaCha & HTC Wildfire
S that the company better understands the requirements different people have when they look
for buying new mobile phones. Sensation 4G possess the most advanced technology with
HTC sense, which is the perfect handset purely meant for entertainment.
HTC sense offers the users instant capture of images, HD video recording, fantastic
graphics and animation, thus a delightful multimedia experience. HTC ChaCha and Salsa
arrives with unique Facebook button for getting access to Facebook services and updates in a
single touch. Operated on Android Gingerbread version OS, these smart phones offer the
option of sharing updates while performing other applications. HTC sense is implemented in
a much simpler way in HTC Desire S, HTC Wildfire S and HTC Incredible S and with the
stunning design and speed, these smart phones are certain to present the users an exhilarating
mobile experience.
Advantages of Mobiles
1. Quick information- With the help of MOILES one can get quick information about the
things happening in the world and can thus remain updated.
2. Source of entertainment- Mobiles Phones acts as a source of entertainment for the
people. We enjoy a lot while watching Smartphones and get relaxed after watching phones.
3. Easy to operate –We can easily operate the mobiles; even children do not find any