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Overview of 3GOverview of 3G

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 Brief OutlineBrief Outline

• Wireless Generations.• Spectrum for 3G

• Mobile Soft Switch

• Issues in 3G Deployment

1!"!1# 33G O$er$iew

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1946- 1960s 1980s 1990s 2000s

Appeared 1G 2G 3G

Analog Digital Digital

Multi Standard Multi Standard Unified Standard

Terrestrial Terrestrial Terr ! Sat

%

Wireless Generations

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1!"!1# #3G O$er$iew

• 1 G -analog "#ellular re$olution%

  - onl& 'o(ile $oi#e ser$i#es

• 2 G - digital "(rea)ing digital (arrier%  - 'ostl& for $oi#e ser$i#es ! data deli$er&

possi(le

• 3 G - *oi#e ! data " (rea)ing data (arrier%

  - Mainl& for data ser$i#es +,ere $oi#e ser$i#es

+ill also (e possi(le

• e&ond 3G -.ide (and /DM

- ut surel& ,ig,er data rates

Wireless Generations

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1!"!1# &3G O$er$iew

1G 'DM( )*M+, (M-S, +(S/ 0"s

2 oice )analo4 traffic, 5i4ital si4nalin4/

G +DM( )GSM, D2(M-S, -D/ an5 DM( )IS26#/ 6"s2 oice, SMS, S 5ata transfer 7 6.& 8bit!s )#" 8bit!s 9SSD/

.#G +DM( )G-:S/ ""s2 -S 5ata transfer 7 #" 8bit!s

.;#G +DM( )G-:S

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  GSM Evolution- another view

1!"!1# 3G O$er$iew

GS

200 57 #arrier 

11 5(ps pea) data rates

DG

200 57 #arrier 

Data rates up to 384 5(ps

8-S5 'odulation

ig,er s&'(ol rate

UMTS

M7 #arrier 

2 M(ps pea) data rates

:e+ MT-2000 2 G7 spe#tru

GSM

200 57 #arrier 

8 full-rate ti'e slots

16 ,alf-rate ti'e slots

GSM GS DG UMTS

3G2G2G

S;SD

S;SD

;ir#uit-s+it#,ed data

64 5(ps pea) data rates

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3G AWARENESS

•3G is the next generation mobile communications systems.

•3G is basically an !" #e$ine# set o$ stan#ar#s% which along

with other s&eci$ications &rovi#es $or minimum #ata s&ee#

o$ 3'( )b&s.

•t enhances the services such as

Multime#ia

*igh s&ee# mobile +roa#ban#

nternet Access

Ability to view vi#eo $ootage on your mobile han#set.

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Third Generation System

!hir# generation systems are #esigne# $or multime#iacommunications. With it &erson to &erson communication can be

enhance# with high ,uality images vi#eos% access to

in$ormation services on &ublic an# &rivate networ)s will be

enhance# by higher #ata rates.

ey re,uirement $or 3G Networ)s/

0ata Rates u&to 1 Mb&s -$or $ixe# or n#oor Environments

0ata Rates u&to 3'( )b&s - $or &e#estrian2 urban Environments0ata Rates u&-to (( )b&s 4 $or wi#e area mobile Environments

 

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.;DMA

UMTS "3G GSM%

;DMA 2000 1 < *D/ e$ 0

 TDD = S ; D M A

3G

UMTS

MT =2000

UTA:

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3G55

3G

O$er$ie1!"!1# 11

• 3r# Gen 5artnershi& 5ro6ect/

!he 3G55 &ro#uces a com&lete set o$ globally a&&licable

!echnical S&eci$ications an# Re&orts $or the "M!S

stan#ar#. !hese are &ublishe# in releases.

•   3r# Gen 5artnershi& 5ro6ect-1/

0ealing with 70MA evolutions an# &ro&oses technicalstan#ar#s. 8u&to 70MA 1999 x E:0;

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3G-- :eleases3G-- :eleases 

4 MSS>

  ;ore

6SUA 2>

SDA 1>

MS?

991st 3G

net+or)s

@MM/>

A -

8A-(is

/$er

10T

Ada$an#ed

DL – 0.4 Mbps

UL - 0.4 Mbps

DL – 14 Mbps

UL - 0.4 Mbps

DL – 14 Mbps

UL - 5.7 Mbps

DL – 84 Mbps

UL - 22 MbpsDL – 168 Mbps

UL - 50 Mbps

DL – 1000 Mbps

UL - 500 Mbps

DL – 0.4 Mbps

UL - 0.4 Mbps

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Spectrum for 3G Systems

The IMT 2000 band has been identied in most of thecountries for the launch of 3G services-

Uplin -!"20-!"#0 M$%&

'o(nlin - 2!!0-2!)0 M$%*

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Mobile So$t switch Solution

a&ered Ar#,ite#ture 

;onne#ti$it& a&er  

;ontrol a&er  

Appli#ation a&er  

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Appli#ation a&er B-ro$ide Ser$i#es ! #ontents

;ontrol a&er B-ro$ide Session ! #all #ontrol fun#tion

;onne#ti$it& a&er B-,&si#al transport ! a##ess te#,

=ayere# Architecture 

Mobile soft switch enable a layered architecture design for

the mobile circuit core , where the network functionsresponsible for service management & control and for

transport of service data are physically & logically separated

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Mobile So$t switch Solution

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MS;"Monolit,i#%

MS;1"Monolit,i#%

MS;2"Monolit,i#%

MS;3"Monolit,i#%

MS;4"Monolit,i#%

+DM!*W

 lassic ircuit2Switche5 *!Wlassic ircuit2Switche5 *!W

1;BS*@ In5ia

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MS;"Monolit,i#%

MS;"Ser$er%

MG.ontrol an5 switchin4

ontrol

Switchin4

  @ayere5 (rchitecture@ayere5 (rchitecture

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MGW%

MGW# MGW1

MGW

MGW3

 (+M, I- or +DM

onnection

MS;Ser$er 

G; C 248

I-!*W

onnecti$ity @ayer 

ontrol @ayer 

  @ayere5 (rchitecture@ayere5 (rchitecture

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A#vantages o$ Mobile So$t switch Solution

Access independent (GSM!"#MA$ core network 

%acket backbone technology (% or A'M$ enables more

efficient transmission of voice traffic over the backbone by

retaining the same voice coding in the backbone as is used

in the air interface

Simplification of network planning through common core

for !"#MA & GSM

S

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"M!S networ) structure

U  User Euip'ent  A:  adio A##ess :et+or)

;:  ;ore :et+or)  :MS  :et+or) Manage'ent S&ste'

R #i A M h #

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n 3G Ra#io Access Metho# is Wi#eban# 7o#e 0ivision Multi&le

Access 8W70MA

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MS" Server 

MG!

012A+"

SGS3

GGS3

Mobile %acket 4ackbone 3etwork (M%43$

5SS

1awful ntercept System

"M!S networ) elements

M lithi MS7 A hit t

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MS;

S;

TS

Faipur 

  Al+ar 

Al+ar ;it&

Monolithic MS7 Architecture

= # A hit t

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=ayere# Architecture

  ;all ;ontrol

  S+it#,ing

  M S ;

  Ser$er

Media Gate+a&

  S;

  TS

MG. MG.

  S;

  TS

3G M bil N t ) l# l ) li)

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  M S ;

Ser$er 

  MG.

:;

:ode -

  S;

  TS

  SGS: GGS:

  nternet

3G Mobile Networ) woul# loo) li)e

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7ritical ssues n 3G 0e&loyment

1!"!1# ;3G O$er$iew

• Seamless migration of eisting network)

•  3ature and 6uantum of license fee)

• nter operability of e6uipments)

• Allocation %ricing of spectrum)

• A high risk business, huge investments)

• t is unlike 7G where market forecasts were certain)

•  3o proven business model eists for 8G)

• s 7)/G not enough9

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