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- Mobile Networks Overview &
2G Standards Comparison
Date
- O uti
lne
I M
² obie et or O ver ew
l N w ks vi
² I adi Technol es
I R o ogi
² I andar
II2G St ds
² I G SM
V
Advant
ages
overC D M A
Locaton,Dat
i e,page
n° 2 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- C elul et or
l arN w ks
O m nidi ectonal
r i
U ni r i
di ectonal
Sect ed
or
Locaton,Dat
i e,page
n° 3 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- C elul et or H i or
l arN w ks st y
1st G ener i
aton:Anal N et or
og w ks
1979 C hi
cago AM PS
1981 Sw eden NM T
1985 U nied ngdom
t Ki TAC S
2nd ener i i t et or
G aton:D gialN w ks
1992 Europe G SM
900 SM
/G 1800
1995 U SA I
S95 C D M A)
(
3rd ener i
G aton:Feder i St
atve andards
2000 Europe U M TS
i
dem SA
U I T
M 2000:ED G E C D M A2000
+
Locaton,Dat
i e,page
n° 4 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- Types els or
ofC l f
D if entApplcatons
fer i i
Gl
obal
Sat lt
elie
R ural Urban
I buidi
n l ng
M i o el
cr C l Pi C el
co l
M acr C el
o l
Locaton,Dat
i e,page
n° 5 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- Ar t ur ofa SM et or
chiect e G N w k
B ase aton
st i SubSyst B SS)
em (
B B
e a sy0 6 T T
S B S
B
T T
S S
I
N
B SC M SC /
VLR
H LR / uC
A
B SC
N et or Sub
w k Syst N SS)
em (
Locaton,Dat
i e,page
n° 6 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- O uti
lne
I M
² obie et or O ver ew
l N w ks vi
² I adi Technol es
I R o ogi
² I andar
II2G St ds
² I G SM
V
Advant
ages
overC D M A
Locaton,Dat
i e,page
n° 7 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- Ai nt f
rI erace uli e
M tpl Access Schem e
FD M A,TD M A C D M A
&
FD M A TD M A CDM A
Frequency Frequency Frequency
C hannel3
C hannel2
Ch Ch Ch
C hannel1
1 2 3
Ti e
m Ti e
m Ti e
m
C ode
B andw i h i si
dt D vi on Frequency i si
D vi on Pseudo andom
R
i o equenci
nt Fr es i o m e ot
nt Ti Sl s C ode
Locaton,Dat
i e,page
n° 8 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- Frequency i si M uli e
D vi on tpl Access
FD M A
B andw i h i si i o equenci
dt D vi on nt Fr es
Each
useri assi
s gned
a
Pow er
slce t R F
i of he spectum
r
FD M A
Applcatons
i i
Anal C elul
og l ar
PS
AM
MT
N
TAC S
Ti
O ne ser
U
Ti
Anal PM R
og
m
m
e
e
Frequency Anal Sat lt
og elies
Locaton,Dat
i e,page
n° 9 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- Ti e i si M uli e
m D vi on tpl Access
TD M A
Frequency i si i o m e ot
D vi on nt Ti Sl s
TD M A
U ser shar one F rer
s e R car i
Pow er on tm e otbasi
a i sl s
U
se
r Applcatons
i i
D i t l ar
gialcelul
G SM ,
D PS
AM
Sat lt (
elie VSAT)
Ti
Ti
m
m
e
e
Frequency
Locaton,Dat
i e,page
n° 10 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- C ode i si M uli e
D vi on tpl Access
CDM A
Pseudo andom ode
R C Sequence
Pow er
Al
luser use he ie rer
s t entr car i
CDM A al he i e !
loft tm !
“ ead
Spr Spectum ”t
r echnol
ogy
O ne ser
U 1
user= U ni
1 que gialcode
di t
Ot
heruser = oi
s N se
Ti
Ti
m
m
e
e
Applcatons
i i
Frequency
D i t elul I 95)
gialC l ar(S
Sat lt ( l st )
elie G obal ar
Locaton,Dat
i e,page
n° 11 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- M uli e
tpl Access Schem e
C D M A TD M A
vs
C onver i 1
saton
C onver i 2
saton
C onver i 3
saton
TD M A CDM A
Ti e
m
Locaton,Dat
i e,page
n° 12 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- The ockt lPary
C ai t Anal 1/
ogy 3
Parygoer = elul
t s C l arusers
1o conver i = om .
t 1 saton C
R oom Fr
= equency
Locaton,Dat
i e,page
n° 13 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- The ockt lPary
C ai t Anal 2/
ogy 3
FD M A,TD M A C D M A
vs
FD M A TD M A CDM A
Locaton,Dat
i e,page
n° 14 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- The ockt lPary
C ai t Anal 3/
ogy 3
CDM A
Peopl fom any i
e r m natons
speaki dif entl
ng fer anguages
conver i vi tansl or
satons a r at
Phenom enaltansl or
r at
M or parygoer => si oom
e t s noi err
N oi i erer w ih
se nt f es t conver i
satons
“ ea
Ar ofcom f t e
orabl conver i
saton”
( oS)decr
Q eases
Locaton,Dat
i e,page
n° 15 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- O uti
lne
I M
² obie et or O ver ew
l N w ks vi
² I adi Technol es
I R o ogi
² I andar
II2G St ds
² I G SM
V
Advant
ages
overC D M A
Locaton,Dat
i e,page
n° 16 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- M ai 2G andar
n st ds
G SM
TD M A ri erace
ai nt f
C om pl e em R adi Access C or N et or
et syst ( o & e w k)
Fr ope ih ord i success
om Eur butw t w l w de
G PR S orH i Speed at
f gh D a
U S M A D M PS) S
TD ( A ,I 136,TD M A
C D M A O ne,I 95,C D M A
S
Ai nt f
ri erace y I 41 orC or N et or
onl + S f e w k
Fr he SA
om t U and ite
ltl expor
tsuccess
PD C
Japanese em
syst
Locaton,Dat
i e,page
n° 17 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- 2G andar
St ds
G SM ,I 136 D PS)& S ( D M A)
S ( AM I 95 C
PC S
1900
800 H z
M 900 M H z
1800 M H z
1900 M H z
TD M A G SM
I 136
S I 136
S
CDM A I 95
S I 95
S
Locaton,Dat
i e,page
n° 18 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- C elul equency
l arFr Spectum l i
r Alocaton
800,
900,1800 1900
& Bands
890 915 935 960
G SM
900
824 849 869 894
AM PS/ PS/ D M A
D AM C
825 840 855 870 885 900 915 930 945 960 M HZ
1850 1910 1930 1990
PC S
1900
1710 1785 1805 1880
D C S
1800
M HZ
1700 1750 1800 1850 1900 1950 2000
Locaton,Dat
i e,page
n° 19 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
- 2G andar C om parson
St ds i
G SM I 136
S I 95
S
M uli e ccess
tpl A TD M A TD M A CDM A
C ar
eer Spaci
ng 200 z
kH 30 z
kH 1. M H z
25
Fr e
am Length 4.
615 s
m 40 s
m 20 s
m
Sl am e
ot/Fr 8 6 1
M ax
Possi e at R at
bl D a e 160 bi/
K ts 43. K bi/
2 ts 115. K bi/
2 ts
N SS G SM A P
M I 41
S
Locaton,Dat
i e,page
n° 20 Al i s eser
lrght r ved
© 2000,Al el i
cat ,Pars.
nguon tai.lieu . vn