WCDMA Traffic Modeling

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WCDMA Traffic Modeling

Original slides from Thomas Winter SN MN PG NT NE 3

Workshop Jakarta, 20 November 2007

AGUNG SETIA I3G !NP SUMA"I! A


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Traffic ModelingContents

O#tline!adio Access $earers

Traffic Model

!el%&& Traffic 're(etition)Additional Traffic *orm#la

Traffic Model Pla#si+ilit, Chec-

Concl#sion

Planning Calc#lation E.am(le

! a

d i o n e

t / o r - (

l a n n

i n g

A c c e s s n e

t / o r - (

l a n n

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this (resentation


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!adio Access $earers

Traffic Model

!el%&& Traffic

Additional Traffic *orm#la Traffic Model Pla#si+ilit, Chec-

Concl#sion



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Traffic Modeling!adio Access $earers

Traffic Classes S#((orted in are

CS Conversational

PS Interactive/Back ro!n"CS Streamin #optional $eat!re%PS Streamin #optional $eat!re%PS Conversational #optional $eat!re%

SIEMENS standard reference

model

Internet StreamingDo/nload


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Traffic Model

!el%&& Traffic

Additional Traffic *orm#la


Concl#sion



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Traffic ModelingTraffic Model $asics '012)

CS Con ersational A((lications Speech CS &'( )2*2 +i"eo calls CS -I .

PS Interacti e1$ac-gro#nd A((lications

ile -o1nloa" Web bro1sin mail 3

mappe" either to

4 PS Interactive/Back ro!n" (elease 55 (&B*


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Traffic ModelingTraffic Model $asics '212)

Siemens Standard !eference Traffic Model4 $asics

CS Con ersational AM! 0252 '6oice) B6C& 0*. ra$$ic -eman"8 )9 m rlan Call "!ration8 )09s

In addition4 CS UDI 78 '6ideo) B6C& 0*0: Call "!ration8 )90s

PS Interacti e1$ac-gro#nd B6C& 0*;2 otal ra$$ic -eman" #-


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Traffic Model

!el%&& Traffic



Concl#sion



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Traffic Modeling!el%&& Traffic '019)4 CS Ser ices1CS $earers

A((lications

!A$

!adio $earer in Cell 0

!adio $earer in Cell 2

S:O

E.am(le4 Modeling of CS Con ersational 1 CS Streaming

!emar-4 S:O factor is NOT considered in traffic model; +#t in Pole Ca(acit, for load calc#lation

and in calc#lation for C:C reso#rces


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$:CA

:olding

Time

Traffic'Erlang)

< 37==

Information

!ate '-+(s)

Acti it,*actor

-+(s -+it in $:N#m+er of S#+scri+ers

> '$:CA < :olding Time) 1 37== < kbit/s?B!s@=ho!r=call=attempts # bhca %Call "!ration >s?Channel #+oice% &ctivit@

he tra$$ic "eman" #or o$$ere" tra$$ic% per service is then iven b@8

Traffic_demand [kbit/BH] = number_of_subscribers * bhca * * call_duration [s]*channel (voice)_activity * information_rate [kb s]

#Incl!sion o$ channel activit@ "epen"s on inter$ace/reso!rce element%

Traffic_demand / !"## s = $ean %ate [kb s] = &$ean %ate in BH&


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Traffic Modeling!el%&& Traffic '819)4 PS I1$ Ser ices

E.am(le4 Modeling of PS Interacti e 1 $ac-gro#nd Ser ices '!elease &&)

@!A$ Session

PDP Conte.t 'Core Net/or- "e el) not rele ant for AI! I* Dim 1 C:C Dim

!A$ !A$

Inacti it,Timer

$it !ate Ada(tation '$!A)4

S#fficient reso#rces4 data rate of radio +earer increases to demanded rate; e5g5 #( to 78102Bor to 7813B8 ia triggering #tili ation of radio +earer

CTS4 Channel T,(e S/itching !A$4 !adio Access $earer

*AC: > *or/ard Access Channel 'D")

!AC: > !andom Access Channel 'U")

!$ 78178 78102B 78178 32132 CC: !$ 78178 78102B 78178

CTSCTS$!A$!A$!A $!A$!A


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$:CA

Session

D#ration

A 37==

Pea-!ate '-+(s)

On !atio

Traffic Data !ate

'-+(s)-+it in $:

N#m+er of S#+scri+ers

/37==

Traffic Demand 1Traffic 6ol#me

Traffic Modeling!el%&& Traffic ' 19)4 PS I1$ Ser ices


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Calc#lation of Traffic Demand4 PS Interacti e1$ac-gro#nd Ser ices '!el%&&)

(elevant parameters $or calc!latin the tra$$ic "eman" $or PS services are8

Peak rate >kbit/s?

B!s@=ho!r=call=attempts #B6C&%Session "!ration >s?n=ratio

he tra$$ic "eman" #or o$$ere" tra$$ic% is then iven b@8

Traffic_demand [kbit/BH] = number_of_subscribers * bhca ** session_duration [s] * on_ratio * eak_rate [kb s]


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Calc#lation of Traffic Demand4 Alternati es for PS Interacti e1$ac-gro#nd Ser ices

In case that a mean rate for a PS ser ice is a aila+le; the (ea- rate and on1offFratiocan +e re(laced +, the mean rate5

Traffic_demand [kbit/BH] = number_of_subscribers * bhca *

* session_duration [s] * mean_rate [kb s]

In case that a mean data ol#me (er s#+scri+er is -no/n for PS or CS ser ices;then the calc#lation red#ces to

Traffic_demand [kbit/BH] = number_of_subscribers ** mean_data_volume_ er_subscriber [kbit/BH]

Concernin the "e$ine" oS classes an" the respective bearers, the tra$$ic "eman"s per servicecan be s!mme" !p $or each bearer class*


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Traffic Model

!el%&& Traffic



Concl#sion



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Traffic Modeling*orm#la Con ersion4 Traffic (er S#+scri+er in milliErlang (er s#+scri+er '012 %

CS traffic 'U"1D")

Traffic [m'rl/subscr ] == call_duration [s] / !"##s * BH * +### no activity_factor yet

PS traffic 'U"1D")

Traffic [m'rl/subscr ] == call_duration [s] / !"##s * BH * +### no on_ratio yet


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Traffic Modeling*orm#la Con ersion4 Traffic (er S#+scri+er in milliErlang (er s#+scri+er '212 %

CS traffic 'U"1D")

Traffic [m'rl/subscr ] == mean_throu,h ut_ er_subscriber [b s] / Bearer_rate [kb s] / activity_factor

PS traffic 'U"1D")

Traffic [m'rl/subscr ] == mean_throu,h ut_ er_subscriber [b s] / Bearer_rate [kb s] / on_ratio


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Traffic Model

!el%&& Traffic



Concl#sion



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Traffic_ er_ -_subscriber [m'rl/subscr ] = call_duration [s] / !"##s * BH * +###

Traffic_ er_ -_subscriber [m'rl/subscr ] =

= mean_throu,h ut_ er_ -_subscriber [b s] / bearer_rate [b s] / activity_factor * +###

$ean_throu,h ut_ er_ -_subscriber [b s] =

= Traffic_volume_ er_ -_subscriber_ er_BH [kbit_ er_BH] / !"##s * +###

$ean_throu,h ut_ er_ -_subscriber [b s] =

= Traffic_volume_ er_ -_subscriber_ er_BH [kbyte_ er_BH] / !"##s * +### * .

= # 0 # " for voice1 + for video

in ut in 2tran 3im1 3%4 and H Tool

- -ervices5 26 and 36 symmetric to be com ared 7ith customer8s traffic model 9

Siemens traffic model target fig#res

Traffic ModelingPla#si+ilit, Chec- of C#stomer%s Traffic Model '013)4 6oice ? 6ideoTraffic


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Traffic ModelingPla#si+ilit, Chec- of C#stomer%s Traffic Model '213)4 PS !el%&& Traffic

:- %el8;; 36 traffic and :- %el8;; 26 traffic5

$ean_throu,h ut_ er_:-_%el8;;_subscriber [b s] == session_duration [s] / !"##s * BH * bearer_rate [b s] * on_ratio

$ean_throu,h ut_ er_:-_%el8;;_subscriber [b s] = = Traffic_volume_ er_subscriber_ er_BH [kbit er BH] / !"##s * +###

$ean_throu,h ut_ er_:-_%el8;;_subscriber [b s] = = Traffic_volume_ er_subscriber_ er_BH [kbyte_ er_BH] / !"##s * +### * .

-iemens Traffic $odel Tar,et values (year


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ll :- %el8;; services to be added se arately for 26 and 36 and finally tobe com ared 7ith -iemens Traffic model should be in the sameran,e

Traffic ModelingPla#si+ilit, Chec- of C#stomer%s Traffic Model '213)4 PS !el%&& Traffic

!el%&& traffic demand

PS N!T !el && onl,


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Traffic Model

!el%&& Traffic



Concl#sion



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-eplo@ment

environment8= area E cl!tters= F s!bscribers G miH

-e$inition o$applications

o$$ere"/!se" in thescenario

'appin o$

applications to CS/PS"omain

'appin o$applications to oS

#tra$$ic% classes

'appin o$

applications to (&Bs

-e$inition o$oS/ oS tar ets e* *

2 blockin CS,5: "ela@ PS

stimation o$ B6C&an" session activations

in B6

&ss!mptions on tra$$icso!rces perapplication/s!bscriber

Calc!lation o$ tra$$ic

"eman"

ra$$ic evol!tion over

time estimate" ro1th

rates

&"aptation o$

ass!mptions

Traffic ModelingConcl#sion


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#estion


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Traffic Model

!el%&& Traffic



Concl#sion



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Planning Calc#lation E.am(le Traffic Model ? S#+scri+er *orecast

Additional (arameters gi en4oS 8 2 Blockin CS, Kbest=e$$ortL PSS!bscriber -istrib!tion 8 - M;: , M:: , S M)0

Phase = Phase 0 Phase 2

S#+scri+ers 0=5=== 3=5=== =5===

CS AM!0252 02; 0 ;= 09;=

CS 78 6T 0; 2;= 3;=

PS 78102B 3;= 2;= 0;= 2nit is m'rl 9


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Planning Calc#lation E.am(le 4!el%&& Traffic CS 6oice and CS 6ideoCon ersion from mErl1S#+scri+er to Traffic 6ol#me in -$it1$:1S#+scri+er

CS Con ersational

:hase #

A((lication oS class !A$ $:CACall

d#rationJsecK

$earer!ate

J-+(sKActi it,

mErl 1S#+

+(s1S#+Traffic

6ol#meJ-+itK

S(eech Conver=sational &'()2*2

UL 0,. 9 ;= )2,2 0,: 02; = 7.,; 298;DL 0,. 9 ;= )2,2 0,: 02; = 7.,; 298;

6ideo Tel5 Conver=sationalCS -I

.< 0,0: 0=B;= . ),0 0; = 5.,0 38 ;7

-< 0,0: 0=B;= . ),0 0; = 5.,0 38 ;7

Total U" Total D"

72=;0 72=;0

Throu,h ut [b s] = Traffic [m'rl/subscr ] * Bearer_rate [kb s] * ctivity_factor

Traffic_>olume [kbit / BH] = Throu,h ut [b s] * !"##s / +###


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Planning Calc#lation E.am(le 4!el%&& PS Interacti e1$ac-gro#nd Con ersion from mErl1S#+scri+er to Traffic 6ol#me in -$it1$:1S#+scri+er

PS Interacti e1

1$ac-gro#nd

:hase #

A((lication oSclass !A$ $:CASessiond#ration

JsecK

$earer!ate

J-+(sK

Onratio

mErl1s#+scr5

+(s1s#+scr5

Trafficol#meJ-+itK

EFMail I1$ PS78178 UL = =;= 78 =;0= =;= =;= =;=

DL = =;= 78 =;2 =;= =;= =;=

EFCommerce I1$ PS78102B UL =;03 B=;= 78 =;0= 3;== 0&;2 7&;0

DL =;03 B=;= 02B =;2 3;== &7;= 38 ;7

Internet I1$ PS7812 7UL = =;= 78 =;0= =;= =;= =;=DL = =;= 2 7 =;2 =;= =;= =;=

Do/nload I1$ PS7813B8U" = =;= 78 =;0= =;= =;= =;=

D" = =;= 3B8 =;2 =;= =;= =;=Total U" Total D"

7&;0 38 ;7*rom Siemens StandardTraffic model UM!75 195= Throu,h ut [b s] = Traffic [m'rl/subscr ] * Bearer_rate [kb s] * ?n_ratio

Traffic_>olume [kbit / BH] = Throu,h ut [b s] * ! "s


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Traffic !es#lts Phase =4 Consideration of L S#+scri+ersIn(#t in -+it1$: for direct In(#t in Utran Dim; D!IC and C:C Tool 85


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Traffic !es#lts Phase 04 Consideration of L S#+scri+ersIn(#t in -+it1$: for direct In(#t in Utran Dim; D!IC and C:C Tool 85


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Traffic !es#lts Phase =ra$$ic -eman"


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Than- ,o# for ,o#r attention

Documents

WCDMA Traffic Modeling