02-11-2010, 05:53 PM
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GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM)
BY
Arpit Sharma
Guided by
Mr. Amit Bairva
INTRODUCTION
This report explains the basic components, technologies used, and operation of GSM systems. We will discover why mobile telephone service providers have upgraded from 1st generation analog systems to more efficient and feature rich 2nd generation GSM systems. We will also discover how 2nd generation systems are gradually evolving into 3rd generation broadband multimedia systems. We will learn that the key types of GSM devices include single mode and dual mode mobile telephones, wireless PCMCIA cards, embedded radio modules, and external radio modems. We will then discover the different types of available services such as voice services, data services, group call, and messaging services. Described are the fundamental capabilities and operation of the GSM radio channel. Because the needs of voice and data communication are different, we will discover that the GSM system essentially separates circuit switched (primarily voice) and packet switched (primarily data) services. Described are key functional sections of a GSM network and how they communicate with each other. We will learn how and why GSM is evolving into 3rd generation broadband systems including GPRS, EDGE, and WCDMA. The term GSM usually means the GSM standard and protocols in the frequency spectrum around 900MHz. There is also DCS1800 - GSM protocols but at different air frequencies around 1800 MHz - and in the United States, where spectrum for Personal Communication Services (PCS) was auctioned at around 1900MHz, operators using the aptly-named GSM1900 are competing against a plethora of other standards. As a result of this, the original and most widely-used GSM frequency implementation is also becoming known as GSM900, and DCS1800 is also known as GSM1800. However, although the physical frequencies used differ, the protocols and architecture remain the same.
http://studentbank.in/report-gsm-using-t...?pid=16448
GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM)
BY
Arpit Sharma
Guided by
Mr. Amit Bairva
INTRODUCTION
This report explains the basic components, technologies used, and operation of GSM systems. We will discover why mobile telephone service providers have upgraded from 1st generation analog systems to more efficient and feature rich 2nd generation GSM systems. We will also discover how 2nd generation systems are gradually evolving into 3rd generation broadband multimedia systems. We will learn that the key types of GSM devices include single mode and dual mode mobile telephones, wireless PCMCIA cards, embedded radio modules, and external radio modems. We will then discover the different types of available services such as voice services, data services, group call, and messaging services. Described are the fundamental capabilities and operation of the GSM radio channel. Because the needs of voice and data communication are different, we will discover that the GSM system essentially separates circuit switched (primarily voice) and packet switched (primarily data) services. Described are key functional sections of a GSM network and how they communicate with each other. We will learn how and why GSM is evolving into 3rd generation broadband systems including GPRS, EDGE, and WCDMA. The term GSM usually means the GSM standard and protocols in the frequency spectrum around 900MHz. There is also DCS1800 - GSM protocols but at different air frequencies around 1800 MHz - and in the United States, where spectrum for Personal Communication Services (PCS) was auctioned at around 1900MHz, operators using the aptly-named GSM1900 are competing against a plethora of other standards. As a result of this, the original and most widely-used GSM frequency implementation is also becoming known as GSM900, and DCS1800 is also known as GSM1800. However, although the physical frequencies used differ, the protocols and architecture remain the same.
http://studentbank.in/report-gsm-using-t...?pid=16448
