globle sysytem mananement

1. Gsm
submtted to
Anupriya singh
submtted by
name :- govinda yaduwanshi
branch :- i.t.

2. content
1. Gsm network architecture
2. Gsm in world
3. GSM IDENTITES
4. mobile station roming numbar
5. CDMA
6. Comparigen between CDMA and GSM

3. Gsm network architecture
• gsm a digital
mobile
telephone
system .
• use Europ
(43%)or
asia(37%).
• TDMA(time
division multipal
access)

4. Gsm network architecture
1. mobile station = mobile
(equipment)+SIM(subscriber identity
modual)
2. Base station=
 radio interface help mobile station
canneat.
 Bss(network and switching system)
cannect.
 BTS(base transfer station)and BSS(base
station cantrol) cansist

5. 3. Network sub system
(nss)= differant gsm user
cammunication manage.
sub system
• mobile service switching
center= call set up
• home location ragister(HLR)=
currant
• visitar location ragister(VLR) =

7. GSM IDENTITES
gsm identities numbar screen
subscriber
calling gsm n/w use
subscriber identity corrcet or uniquic
mobile station associated
numbar
MSI==CC+NDC+SN

8. Types of mobile station associted number
1. internationl mobile subscrber
identity =
usern uniqic identity allocat
use radio path carrect subscribar
identifacation
exmpal

9. 2. internationl mobile equipment
identiy(imei)
• use n/w mobile equipment uniquely
identify
• use basically sccurity processar
• 6 digit 2digit 6digit 1digit
(TAC)=time approval code
(FAC)=final assenby code
(SNR)=serial na.
TAC FAC SNR SPARE

10. 3. temparary mobile subscriber identity
• use subscriber identity protect
• time itervals change
• tmsi (msc/vlr)

11. Mobile Station Roaming Number
Mobile Station Roaming Number:- MSRN is a temporary identity which is
assigned during the establishment of a call to a roaming substation.
Mobile Station Roaming Number
New Network
11
MSC
HLR
(BSS)
Other
MSC
HLR
(Other BSS)

12. mobile station roming numbar
msrn temppary nw identity
• ms new n/w visit
• home nw incoming calls farword
numbars
msrn (HLR) store

13. Types of MSRN
Location area identity:-temparary nw identity
routing
Cell global identity:- gsm use local area indivisual
call identify
base station identify:- mobile station different base
station send same fequeucy
identify

14. Multipal access technolog
widthband spread specturm based
cdma time and fequency work

15. Comparigen between CDMA and GSM
CDMA
GSM
fequency band singal (550 mhz) multipal(550/900/1800m
hz)
storage type interanl memory sim card
network service handset specific sim specific
transfer speed faster bits lower
market share 24% only 76%
voice and data at some
time
no yes
area u.s world wide