19-03-2012, 01:16 PM
Introduction to Mobile Telecommunication and GSM
[attachment=18539]
MOBILE TELEPHONY
Mobile telecommunications is one of the fastest growing and
most demanding of all telecommunications technologies.
Currently, it represents an increasingly high percentage of all
new telephone subscriptions worldwide. In many cases, cellular
solutions successfully compete with traditional wireline
networks and cordless telephones. In the future, cellular systems
employing digital technology will become the universal method
of telecommunication.
HISTORY OF WIRELESS COMMUNICATION
The origins of mobile communications followed quickly behind
the invention of radio in the late 1800s. The first applications of
mobile radio were related to the navigation and safety of ships at
sea. As radio concepts developed, so did it’s use as a
communications tool.
MOBILE STANDARDS
Standards play a major role in telecommunications by:
· Allowing products from diverse suppliers to be
interconnected
· Facilitating innovation by creating large markets for common
products
The standards-making process is one of co-operation at many
levels, both nationally and internationally and includes cooperation
between:
· Industrial concerns within a country
· These industrial concerns and their governments
· National governments at an international level
The primary purpose of a standard for mobile communications
is to specify how mobile phone calls are to be handled by a
mobile network. For example, this includes specification of the
following:
· The signals to be transmitted and received by the mobile
phone
· The format of these signals
· The interaction of network nodes
· The basic network services which should be available to
mobile subscribers
· The basic network structure (i.e. cells, etc.)
ERICSSON IN MOBILE
Ericsson is one of the leading telecommunication companies in
the world, with customers in more than 130 countries. Ericsson’s
key product is the AXE digital exchange which is in service in
the most sophisticated public networks in Europe, the Americas,
Australia, Africa and Asia. One of the key reasons for the
success of AXE is that it is modular in design which allows it to
adapt easily to a wide variety of applications. The concept of
open systems and standardized interfaces is fundamental to the
development of all new telecommunication products within
Ericsson.
[attachment=18539]
MOBILE TELEPHONY
Mobile telecommunications is one of the fastest growing and
most demanding of all telecommunications technologies.
Currently, it represents an increasingly high percentage of all
new telephone subscriptions worldwide. In many cases, cellular
solutions successfully compete with traditional wireline
networks and cordless telephones. In the future, cellular systems
employing digital technology will become the universal method
of telecommunication.
HISTORY OF WIRELESS COMMUNICATION
The origins of mobile communications followed quickly behind
the invention of radio in the late 1800s. The first applications of
mobile radio were related to the navigation and safety of ships at
sea. As radio concepts developed, so did it’s use as a
communications tool.
MOBILE STANDARDS
Standards play a major role in telecommunications by:
· Allowing products from diverse suppliers to be
interconnected
· Facilitating innovation by creating large markets for common
products
The standards-making process is one of co-operation at many
levels, both nationally and internationally and includes cooperation
between:
· Industrial concerns within a country
· These industrial concerns and their governments
· National governments at an international level
The primary purpose of a standard for mobile communications
is to specify how mobile phone calls are to be handled by a
mobile network. For example, this includes specification of the
following:
· The signals to be transmitted and received by the mobile
phone
· The format of these signals
· The interaction of network nodes
· The basic network services which should be available to
mobile subscribers
· The basic network structure (i.e. cells, etc.)
ERICSSON IN MOBILE
Ericsson is one of the leading telecommunication companies in
the world, with customers in more than 130 countries. Ericsson’s
key product is the AXE digital exchange which is in service in
the most sophisticated public networks in Europe, the Americas,
Australia, Africa and Asia. One of the key reasons for the
success of AXE is that it is modular in design which allows it to
adapt easily to a wide variety of applications. The concept of
open systems and standardized interfaces is fundamental to the
development of all new telecommunication products within
Ericsson.