Overview of 3G Network
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Overview of
3G Network
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3G Standardization:
Two partnership projects have been established to accelerate allaspects of 3G standardization
1. 3GPP- UMTS
2. 3GPP2- CDMA2000
Main thrust of each project is to find commonality for their respectivestandards across regions
Global harmonization could enable:
lower overall costs faster product cycles
faster operator implementation of 3G services
3G Partnership Projects
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3GPP Release
3GPP Rel99
3GPP Rel4
3GPP Rel5
2000/03 2001/03 2002/03
GSM/GPRS Core Network
WCDMA
CS domain change to NGN
WCDMA Radio
HSDPA (DL=14.4 Mbps)
3GPP Rel6
HSUPA (UL=5.76Mbps)
MBMS: multimedia broadcast and Multicast service
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3GPP rel 99 Architecture
SS7
IP
BTS
BSCMSC
VLR
HLRAuC
GMSC
BSS
SGSN GGSN
PSTN
PSDN
CN
CD
GcGr
Gn Gi
Abis
Gs
B
H
AE PSTN
2G MS (voice only)
2G+ MS (voice & data)
Gb
3G UE (voice & data)
Node B
RNC
RNS
Iub
IuCS
ATM
IuPS
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3GPP rel4 Architecture-
Soft Switching
SS7
IP/ATM
BTS
BSCMSC Server
VLR
HLRAuC
GMSC server
BSS
SGSN GGSN
PSTN
PSDN
CN
CD
GcGr
Gn Gi
Gb
Abis
Gs
B
H
ANc
2G MS (voice only)
2G+ MS (voice & data)
Node B
RNC
RNS
Iub
IuCS
IuPS
3G UE (voice & data)
Mc
CS-MGW
CS-MGWNb
PSTNMc
ATM
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GSM vs WCDMA
GSM WCDMA
Base Station Subsystem(BSS)
Radio Access Network(RAN)
Base Station Controller
(BSC)Radio Network Controller
(RNC)
Base Transceiver Station(BTS)
Node B.
TDMA & FDMA WCDMA
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RNC RNC
Core Network
Node B Node B Node B Node B
Iu Iu
Iur
Iub IubIub Iub
Uu (the “radio interface”)
C h
a n
n e l
4 s
ak
d j
f
f j
as
ld
f
q w
e
r r
ti
u
c
.
sa
k d
jf
f j
as
ld
f
q w
e
r r
ti
u
c
.
sa
k d
jf
f j
as
ld
f
q w
e
r r
ti
u
c
.
UTRAN: Universal terrestrial radioaccess Network
RNC: Radio Network ControllerUE: User Equipment
UTRAN
3G UMTS Architecture
UE
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User equipment
USIM: Universal Subscriber Identity Module
USIM
ME
UE
Cu
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2G
3G
Complete evolution from 2G to 3G
Evolution should cover not only the technical evolution of network
elements but also expansions to network architecture and services.
When these three evolution types go hand in hand the smoothmigration from 2G to 3G will be successful.
Technical evolution
Network evolution
Service evolution