wcdma traffic modeling
TRANSCRIPT
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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
i n g
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
Planning Calc#lation E.am(le
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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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!adio Access $earers
Traffic Model
!el%&& Traffic
Additional Traffic *orm#la
Traffic Model Pla#si+ilit, Chec-
Concl#sion
Planning Calc#lation E.am(le
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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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!adio Access $earers
Traffic Model
!el%&& Traffic
Additional Traffic *orm#la
Traffic Model Pla#si+ilit, Chec-
Concl#sion
Planning Calc#lation E.am(le
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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$$ic% per service is then iven b@8
Traffic_demand [kbit/BH] = number_of_subscribers * bhca * * call_duration [s]*channel (voice)_activity * information_rate [kb s]
#Incl!sion o$ channel activit@ "epen"s on inter$ace/reso!rce element%
Traffic_demand / !"## s = $ean %ate [kb s] = &$ean %ate in BH&
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Traffic Modeling!el%&& Traffic '819)4 PS I1$ Ser ices
E.am(le4 Modeling of PS Interacti e 1 $ac-gro#nd Ser ices '!elease &&)
@!A$ Session
PDP Conte.t 'Core Net/or- "e el) not rele ant for AI! I* Dim 1 C:C Dim
!A$ !A$
Inacti it,Timer
$it !ate Ada(tation '$!A)4
S#fficient reso#rces4 data rate of radio +earer increases to demanded rate; e5g5 #( to 78102Bor to 7813B8 ia triggering #tili ation of radio +earer
CTS4 Channel T,(e S/itching !A$4 !adio Access $earer
*AC: > *or/ard Access Channel 'D")
!AC: > !andom Access Channel 'U")
!$ 78178 78102B 78178 32132 CC: !$ 78178 78102B 78178
CTSCTS$!A$!A$!A $!A$!A
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$:CA
Session
D#ration
A 37==
Pea-!ate '-+(s)
On !atio
Traffic Data !ate
'-+(s)-+it in $:
N#m+er of S#+scri+ers
/37==
Traffic Demand 1Traffic 6ol#me
Traffic Modeling!el%&& Traffic ' 19)4 PS I1$ Ser ices
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Traffic Modeling!el%&& Traffic '719)4 PS I1$ Ser ices
Calc#lation of Traffic Demand4 PS Interacti e1$ac-gro#nd Ser ices '!el%&&)
(elevant parameters $or calc!latin the tra$$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$$ic% is then iven b@8
Traffic_demand [kbit/BH] = number_of_subscribers * bhca ** session_duration [s] * on_ratio * eak_rate [kb s]
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Traffic Modeling!el%&& Traffic '919)4 PS I1$ Ser ices
Calc#lation of Traffic Demand4 Alternati es for PS Interacti e1$ac-gro#nd Ser ices
In case that a mean rate for a PS ser ice is a aila+le; the (ea- rate and on1offFratiocan +e re(laced +, the mean rate5
Traffic_demand [kbit/BH] = number_of_subscribers * bhca *
* session_duration [s] * mean_rate [kb s]
In case that a mean data ol#me (er s#+scri+er is -no/n for PS or CS ser ices;then the calc#lation red#ces to
Traffic_demand [kbit/BH] = number_of_subscribers ** mean_data_volume_ er_subscriber [kbit/BH]
Concernin the "e$ine" oS classes an" the respective bearers, the tra$$ic "eman"s per servicecan be s!mme" !p $or each bearer class*
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!adio Access $earers
Traffic Model
!el%&& Traffic
Additional Traffic *orm#la
Traffic Model Pla#si+ilit, Chec-
Concl#sion
Planning Calc#lation E.am(le
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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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!adio Access $earers
Traffic Model
!el%&& Traffic
Additional Traffic *orm#la
Traffic Model Pla#si+ilit, Chec-
Concl#sion
Planning Calc#lation E.am(le
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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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!adio Access $earers
Traffic Model
!el%&& Traffic
Additional Traffic *orm#la
Traffic Model Pla#si+ilit, Chec-
Concl#sion
Planning Calc#lation E.am(le
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-eplo@ment
environment8= area E cl!tters= F s!bscribers G miH
-e$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$$ic evol!tion over
time estimate" ro1th
rates
&"aptation o$
ass!mptions
Traffic ModelingConcl#sion
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#estion
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!adio Access $earers
Traffic Model
!el%&& Traffic
Additional Traffic *orm#la
Traffic Model Pla#si+ilit, Chec-
Concl#sion
Planning Calc#lation E.am(le
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Planning Calc#lation E.am(le Traffic Model ? S#+scri+er *orecast
Additional (arameters gi en4oS 8 2 Blockin CS, Kbest=e$$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