GSM and TDMA

7/24/2019 GSM and TDMA

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GSM AND TDMA

TECHNOLOGY

Mr.Narayana Swamy.R

Assoc.Prof,Dept of ECET.o!n "nst#t$te of Tec!no%o&y,

'an&a%ore


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GSM SYSTEM O(ER("E) INTRODUCTION TO GSM AND TDMA

"n *+- fre$ency /an0s of +12+*3MH4 an0 +532+61MH4 #.e. -3MH4 /an0w#0t! an0 73MH4

0$p%e8 spac#n&, were a%%ocate0 for a PAN2E$ropean secon0 &enerat#on 0#ta% ce%%$%ar system9GSM +11: w!#c! wo$%0 a%%ow roam#n& on an #nternat#ona% /as#s an0 wo$%0 rep%ace t!e#ncompat#/%e ;rst &enerat#on systems .

*+-2 tas< force, *+= > forma%%y a0opte0 /y E$ropean comm#ss#on, *++2ETS" Too< o?er, *++12stan0ar0 p$/%#s!e0, *++-20ep%oyment of f$nct#ona% system, *++=2 GSM *11 9DCS *11:,GSM*+11 9PCS:.

GSM Services @#rst Generat#on Analog cellular systems were 0es#&ne0 for basic voice service. Data

ser?#ces for fa8 or c#rc$#t sw#tc!e0 0ata transm#ss#on $s#n& a ?o#ce /an0 mo0em were c%ass#;e0as overlay ser?#ces t!at r$n on top of t!e ?o#ce ser?#ce. Secon0 Generat#on Digital Cellular systems GSM! were 0es#&ne0 for #nte&rate0 "ireless

voice#$ata service net"or%t!at oere0 se?era% ser?#ces %#


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GSM Networ< an0 SystemArc!#tect$re


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Mo/#%e Stat#on

Cons#sts of two e%ements Mo/#%e e$#pment S"M

"s t!e 0e?#ce t!at pro?#0es ra0#o %#n< /etween GSM s$/scr#/er an0 w#re%essmo/#%e networ


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'ase stat#on system

Cons#sts of two e%ements 'ase transce#?er system 9'TS: 'ase stat#on contro%%er 9'SC:

Pro?#0e trans%at#on /etween MS 9w#re%ess protoco%s: an0 MSC 9w#re%#ne protoco%:. Comm$n#cat#on 'etween 'TS an0 'SC #s t!ro$&! >A=D 'rotocol 90ata %#n


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Networ< sw#tc!#n& system

Pro?#0es necessary #nterface for connect#on of t!ew#re%ess networ< to ot!er networ


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Operat#on an0 s$pport systeman0 ot!er no0es

S$pports operat#on an0 ma#ntenanceof ent#re networ

GSM and TDMA

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