Mobile Computing U3 Part3 New Fri

8/12/2019 Mobile Computing U3 Part3 New Fri

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http://10.0.0.141/~cmmankar/02/10/2013 Tuesday

Mobile communication systems: Cellular system

infrastructure, Registration, Handoff parameter and

underlying support Roaming support, Multicasting,Security and privacy, Firewall and system security.

Eiting wireless system: AMPS, IS-41, GSM, IMT-

2000.

Unit-3

1

(1KMEF5-Mobile Computing)


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IMT2000 (International Mobile Telecommunications)


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Key Features

1) International Spectrum allocation

2) Services Provided by Third-Generation

Cellular Systems

3) Harmonied 3G Systems

!) "ultimedia Service #""S)

$) %"TS (Universal Mobile Telecommunication Systems)

&) %T'( (UMTS Terrestrial Radio N/W)

*) Channels in %T'(


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1) Hi+h de+ree o, commonality o, desi+n orldide.

2) Compatibility o, services ithin I"T-2/// and ith ,i0ed

netors.

3) Hi+h uality.

!) Small terminal ,or orldide use includin+ pico micro

macro and +lobal satellite cells.

$) 4orldide roamin+ capability.

&) Capability ,or multimedia applications and a ide ran+e

o, services and terminals.

KEY FEATURES


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International Spectrum Allocation


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http://10.0.0.141/~cmmankar/


Service Provided by Third- Generation ellular Sy!tem!


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Radio Inter"ace! "or I#T-$%%%


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Service provided by &G ellular Sy!tem!

Hig rate ca!ability

2 "bps ,or ,i0ed environments

37! bps ,or indoor9outdoor : pedestrian environment

1!! bps ,or vehicular environment

Standardi"ation #or$6urope #6TSI; Er!p"an T"#"c!mmnicati!n$ Stan%ar%i&ati!n In$titt"!

%"TS < 4C="(>apan #('I?; A$$!ciati!n !' (a%i! In%$tri"$ ) *$in"$$)

4C="(

%S( #TI(; T"#"c!mmnicati!n In%$tr+ A$$!ciati!n)cdma2///


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IMT2000

##S' Multimedia Messaging Service

1. Is open industry speci,ication by 4(P ,orum ,or 3GPP

2. It is improvement over S"S service

3. 4ors over broadband channels in 2.$G : 3G

!. It is store-and-,orard service

$. %nlie S"S ""S can be delivered as email


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IMT2000

Components of MMSMMS Relay;

Transcodes & delivers messages to mobile subscriber

MMS Server;

Provides Store in the stor-N-fwd MMS architecture

MMS User %gent;

An application server the the abilit to view! create! send! edit!

delete! manage their MMS



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IMT2000

The contents o, ""S are de,ined byMMS !n'"r"nc" Sp"ciati!n "r$i!n 2.0.0

i.e. SM' *+ #Snchroni%ation Multimedia ntegration 'anguage)

Application scenarios o MM!"

1. Next Generation Voicemail

2. Immediate Messaging

3. Choosing ho! hen! and here to "ie the messages

#. Mobile $%&

'. ending multimedia ostcards



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IMT2000

1) %"TS architecture is partly based on 3G speci,ications2) %"TS inherits G"S #Global System @or "obile)

3) "SC has similar ,unctionality as o, GS" : %"TS

!) It has circuit s#itced service ,or pacet data

$) ( node is called as ,&%N#Pacet =ata (ccess ode)

&) Supports 2"bit9sec

U#TS' Universal M!ile Telecmmunicatin System


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IMT2000

U#TS' "et#r$ %rc&itecture


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IMT2000

The %T'( consists o, a set o, radio net#or$ subsystems #'Ss)To main elements;

-)Node (: ))adio Networ* "ontroller #'C)

( ("$p!n$i#" '!r:

"! #ntra $%R&' Hand off

(! Macro)diversity combining and splitting of t*e I

datastreams

+! Frame Sync*roniation

-! Radio Resource Management

! /uter loop power control

0! Serving R'S relocation

U#TS Terre!trial Radio Acce!! (et)or* +UTRA(,


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IMT2000

'uis a inter,ace similar to %.'nteracein GS"'uris ne inter,ace < hich connects to nei+hbourin+ 'Cs

'ubis used to connect ?S to 'C #'adio etor Controller)

0bis pacet sitched netors hich uses T=" ,or transport

Ather inter,aces;

0ris

0uis are all interfaces +Stud diagram ,,#./Page012,

0sis

'uris

U#TS Terre!trial Radio Acce!! (et)or* +UTRA(, omponent!


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IMT2000

U#TS Terre!trial Radio Acce!! (et)or* +UTRA(, Architecture

(S (a%i! "t!rk S$+$t"m

( - (a%i! "t!rk !ntr!##"r


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IMT2000

%T'( consists o, 'Ss #See @i+ Prv. Slide)Eac# $%! #as t&o elements"

1' %oe 2' a $%C

'S is responsible ,or radio resources and transmission9 reception in aset o, cells.

( r"$p!n$ii#it+ inc#%"$:

"! #ntra $%R&' Hand off

(! Macro)diversity combining and splitting of t*e Idatastreams

+! Frame Sync*roniation

-! Radio Resource Management! /uter loop power control

0! Serving R'S relocation

1! $M%S radio lin2 control 3R4C! sublayers function eecution


(S (a%i! "t!rk S$+$t"m

( - (a%i! "t!rk !ntr!##"r


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IMT2000

UTRA( o.ical inter"ace!'The protocol !tructure contain! t)o layer!'

/, R( +Radio (et)or* layer, 0

$, T( +Tran!port (et)or* ayer,


General protocol model ,or %T'( is shon in ne0t ,i+ure

ote;

R%N%, is 'adio (ccess etor (pplication Protocol


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UTRA( o.ical inter"ace!'The protocol !tructure contain! t)o layer!'

/, R( +Radio (et)or* layer, 0

$, T( +Tran!port (et)or* ayer,

R%N%, is'adio (ccess

etor

(pplication

Protocol


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%"TS has 1types o, channels;1) Transport

2) *ogical+) ,#sical

Trans!ort; This channel handles in,ormation transmission on radio

inter,ace

ogical; (re described by the type o, in,ormation they carry

,ysical; (re de,ined di,,erently ,or F&@re. =ivision =uple0in+):

T&& #Time =ivision =uple0in+)

@or @== a physical channel isidenti,ied by its carrier

fre3uenc! its access code! the

relative phase of the signalin

the uplin

Similarly T== identi,ies a physicalchannel by its carrier ,reuency

access code relative phase ,or the

uplin and the time slotin hich it

is transmitted


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T'(SPA'T CH(6BS;

(re the services o,,ered by the physical layer to hi+her layer

General Classi,ication o, Transport channels is done in t#o grou!s;

1. 2ommon trans!ort cannels#4here there is need for in-bandidentification of 56s when perticular 56 is addressed)

2. &edicated trans!ort cannels#4here 56s are identified b the

phsical channel i#e# code! time slot! and fre3uenc)


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1. 2ommon trans!ort cannels#4here there is need for in-band

identification of 56s when perticular 56 is addressed)

2. &edicated trans!ort cannels#4here 56s are identified b the

phsical channel i#e# code! time slot! and fre3uenc)


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2ommon Trans!ort 2annels3

1. '(CH #'andom (ccess Channel)

2. A="( #Apportunity =riven "ultiple (ccess)3. CPCH #Common Pacet Channel)

!. @(CH #@orard (ccess Channel)

$. =SCH #=onlin Shared Channel)

&. %SCH #%plin Shared Channel)

*. ?CH #?roadcast Channel)7. PCH #Pa+in+ Channel)

&edicated Trans!ort 2annels3

1. =CH #=edicated Channel)

2. @(%CH #@ast %plin Si+nalin+ Channel)3. A=CH #A="( =edicated Channel)


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2. A="( #Apportunity =riven "ultiple (ccess)

3. CPCH #Common Pacet Channel)!. @(CH #@orard (ccess Channel)



*. ?CH #?roadcast Channel)

7. PCH #Pa+in+ Channel)

1(A: It i$ c!nt"n$i!n a$"% p#ink chann"# '!r tran$mi$$i!n !' r"#ati"#+

$ma## %ata 5".6. '!r initia# acc"$$ !r n!n-r"a#-tim" %"%icat"% c!ntr!# !r tra''ic

%ata

278MA: U$"% in r"#a+ #ink

3P: '!r tran$mi$$i!n !' r$t+ tra''ic. It "9i$t$ in 88 m!%" an% !n#+ in

p#ink %ir"cti!n. P i$ $har"% + UE !r MS in a c"##.

4 A: !mm!n %!n#ink '!r tran$mi$$i!n !' r"#ati"#+ $ma## am!nt !'

%ata


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2. A="( #Apportunity =riven "ultiple (ccess)

3. CPCH #Common Pacet Channel)!. @(CH #@orard (ccess Channel)



*. ?CH #?roadcast Channel)

7. PCH #Pa+in+ Channel)

;8S: It i$ $har"% + $""ra# UE$ carr+in6 c!ntr!# !r tra''ic %ata


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IMT2000

o.ical hannel! in UTRA(


d dI! .1


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Interim StandardI!- .1

'S.4-IS-!1 uses 3 identi,ication numbers similar to ("PS

+ Identi,ication numbers are used in ("PS to per,orm various ,unctions1. 6lectronic Serial umber #5SN)

2. System Identi,ication umber #S'N)

3. "obile Identi,ication umber #M'N)

6 !lus IS-!1 uses SWN7#Sitch umber) to identi,y particularsitch in hich the "S is associated

it is concatenation o, S'& and sitch identi,ication i.e. SW'&

i S d dI! .1


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Interim Standard


IS-!1 allos hando,, beteen ?Ss under control o, Control o, di,,erent

"SCs

It allos roamin+ o, "S outside the home system

Services provided by IS-!1

I!- .1

I! .1


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+ Identi,ication numbers are used in ("PS to per,orm various ,unctions1. 6lectronic Serial umber #5SN)

2. System Identi,ication umber #S'N)

3. "obile Identi,ication umber #M'N)

I!- .1

I! .1


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5SN31. ( 32 bit number

uniuely identi,ies

"S

2. Is established by

"anu,acturer

3. lie "(C

!I%"1. % uni*ue 1' bit

number assignedto cellulars+stem ($CC)!

2. ,sed b+ M toregister in

ser"ice region!3. ,sed to detect

M roaming!

M'N31. ( di+ital

representation o,

"S 1/ di+it

directory

telephone number

I!- .1


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IS-1/ Entitie! and Re"erence Point!


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ey terms used as components o, I!- .1


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I!- .1

'elationship beteen the IS-!1 and ASI "odel protocol stac


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I!- .1

IS-!1 ,unctionality in application layer support;

1) The mobile application part

2) Transaction capabilities

%2S5#(ssociation Control Service 6lement) is used to correlate toapplications i.e. association beteen the to entities ( : ?

The internet orin+ o, IS-!1 is shon is ne0t ,i+ure


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Inter)or*in. o" IS-1/ and A#PS I!- .1


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'S.4- su!!ort various o!erations31. 'e+istration in ne "SC

2. Callin+ an idle "S in a ne system

3. Call ith unconditional call ,orardin+

!. Call ith no anser

$. Callin+ a busy "S

&. Hando,, measurement reuest

*. 'ecovery ,rom ,ailure at the HB'


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'S.4- su!!ort various o!erations3

'e+istration in ne "SC #5*en MS moves in new area served by differentMSC, it *as to register wit* new serving MSC. #S)-" manages t*e new

registration)Callin+ an idle "S in a ne system #>h"n ca## i$ r!t"% t! a MS in a n"

$+$t"m, th" ?( !' h!m" MS c!ntact$ ?( !' #at"$t i$itin6 $+$t"m ) a't"r

appr!priat" ath"nticati!n an% "9chan6" IS-41 m"$$a6"$ a##!$ ca## t! "

r!t"% t! th" in th" i$itin6 $+$t"m)Call ith unconditional call ,orardin+Call ith no anser

Callin+ a busy "S

Hando,, measurement reuest

'ecovery ,rom ,ailure at the HB'


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Global Sy!tem "or

#obile

ommunication!

GS#


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GS# in"ra!tructure +T2#A,

/, Fre3uency 4and! and hannel!

$,

Frame! in GS#&, Identity number! u!ed by a GS# Sy!tem

1, ayer!5 plane! and Inter"ace! o" GS#

Group Special #obile

6R

Global Sy!tem "or #obile ommunication!' Europe


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GS# In"ra!tructure


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Mobile Computing U3 Part3 New Fri