day3_ session13_uality of service (qos) definition and standards
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Quality of ServiceQuality of Service
((QoSQoS) definition and) definition and
standardsstandards
Sami TABBANE
ITU ASP COE Trainin on
!Wireless Broadband"
5-8 November 2013 Nadi (Fiji Islands)
Session #$
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CONTENTSCONTENTS
I% Qos definitions and o&'ectives
II% Qos criteria
III% Evaluation of te QoS
I% Quality of Service in *S+,*P-S
% Quality of Service in U+TS
I% Quality of Service in .TE
II% Summary
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CONTENTSCONTENTS
I% QoS definitions and o&'ectives
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/0AT IS T0E QUA.IT1 O2 SE-ICE 3/0AT IS T0E QUA.IT1 O2 SE-ICE 3
Evolution a44roac
Classically
Perorman!e o"#imi$a#ion in lo%er la&ers
im"rovemen# o 'ser o*
Top-down approach+ ,e##er a!ieved as
!an.es in lo%er la&ers ma& ave dieren#
im"a!#s on a""li!a#ion la&ers and 'ser
servi!es*
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*ENE-A. APP-OAC0*ENE-A. APP-OAC0
5efinition
a"abili#& o #e !ell'lar servi!e "roviders #o
"rovide a sa#isa!#or& servi!e+
oi!e 'ali#&
i.nal s#ren.#
o% !all blo!in. and dro""in. "robabili#&
i. da#a ra#es or m'l#imedia and da#aa""li!a#ions*
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EN5 TO EN5EN5 TO EN5 QQooSS
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7adio ne#%or "erorman!es (errors "lannin.)
Ne#%or !a"a!i#&
Ne#%or desi.n (ransmission !a"a!i#&)
9""li!a#ion desi.n (ina""ro"ria#e "ro#o!ols 'sed or
mobile environmen#)
ervi!e s'""or# (#e!nolo.ies in!orre!#l& !oni.'red
as !om"ression 'ali#& !on#rol :)*
QUA.IT1 O2 SE-ICE I+PAI-+ENT O-I*INSQUA.IT1 O2 SE-ICE I+PAI-+ENT O-I*INS
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QoS (;I-)+
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Serveability performance
QoS and NP, Performance network (ITU Rec !"##$
'ali#& o ervi!e
Service support(ability to
provide a serviceand help its
usage)
Serviceoperability
(capacity of aservice to be
used)
Serviceaccessibility
Servce sustaina-bility
Serviceintegrity
Servicesecurity
QoSQoS
Billing(probability that the
network accounts thecommunications bytype, destination,
Traffic performance
Resources andenvironment
Dependability(availability,reliability,
maintenance, support)
Transmission
NPNP
QQooSS8 5E2INITION8 5E2INITION
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Commercial offer Com4etition Trends
Users e94ectations in terms of QoS
Tecnical QoS
Network
performanceSales points
Customer
careTerminal
performance
Non:tecnical QoS
QUA.IT1 O2 SE-ICE AN5 USE- SATIS2ACTIONQUA.IT1 O2 SE-ICE AN5 USE- SATIS2ACTION
Users satisfaction
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I;- 7e!* A*860 < Frame%or o a servi!e level
a.reemen# = (2002)*
Formal deini#ion o a rela#ion be#%een 2 en#i#ies a# leas##e servi!e "rovider and is !'s#omer
onsis#s in+
e.al and inan!ial s"e!ii!a#ions
ervi!e level s"e!ii!a#ions (#e!ni!al)
S.A (SE-ICE .EE. A*-EE+ENT)S.A (SE-ICE .EE. A*-EE+ENT)
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o is #e de.ree o !onorman!e o #e servi!edelivered #o a 'ser b& a "rovider %i# an a.reemen#be#%een #em*
Negotiation Phase
Documentation PhaseImplementation Phase
Maintenance and Reporting
Phase
Satisfaction (user/provider)
Termination Phase
Yes
No
S.A (SE-ICE .EE. A*-EE+ENT)S.A (SE-ICE .EE. A*-EE+ENT)
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Benerall& meas'red in a mon#l& base
7 (7o'nd ri" ime)
Pa!e# loss ra#io (meas'red b& "in. ICP)
ime "er!en#a.e+ #e s'bs!riber "or# is available #oeD!an.e #rai!
Bi.'e (dela& be#%een s'!!essive "a!e#s)*
am"lin. !an be a!ieved on a 5 min'#es basis #&"i!all&*
S.A (SE-ICE .EE. A*-EE+ENT)S.A (SE-ICE .EE. A*-EE+ENT)
!%amples of S&' parameters
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o !ri#eria in %ireless and mobili#& !on#eD#
9!!essibili#&
7eliabili#&
onne!#ion dela&
In#err'"#ions or dro" o servi!e d'e #o #e la! one#%or reso'r!es
Ne#%or !overa.e
7oamin. and and-Ever "erorman!e
oi!e 'ali#&
?a#a #ranser ro'."'#
In#ero"erabili#& be#%een dieren# area
S.AS.A AN5AN5 QQooSS IN -A5IO NET/O-; +OBI.EIN -A5IO NET/O-; +OBI.E
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e 'ali#& eD"erien!e (oA) is
deined as #e #radi#ional eD#ension
o #e o*
oA indi!a#es #e manner %i#
%i! servi!es are oered in #e
"oin# o vie% 'ser*
oA des!ribes o% a 'ser "er!eives #e 'sabili#& o aservi!e %en in 'se o% sa#isied e/se is %i# a servi!ein #erms o e*.* 'sabili#& a!!essibili#& re#ainabili#& andin#e.ri#&*
QQooEE CONCEPTCONCEPT
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oA is #e overall a!!e"#abili#& o an a""li!a#ion or
servi!e as "er!eived s'bje!#ivel& b& #e end-'ser*
'ali#& o AD"erien!e in!l'des #e !om"le#e end-#o-
end s&s#em ee!#s (!lien# #erminal ne#%or servi!es
inras#r'!#'re e#!*)* Everall a!!e"#abili#& ma& be
inl'en!ed b& 'ser eD"e!#a#ions and !on#eD#*
QQooEE 5E2INITION (ITU5E2INITION (ITU::T S*#
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QQooEE 5E2INITION (ITU5E2INITION (ITU::T S*#
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QQooSS IN5ICATO- C.ASSESIN5ICATO- C.ASSES
Indicators classes
Ne#%or a!!ess
ervi!e a!!ess
ervi!e in#e.ri#&
ervi!e s's#ainabili#&*
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Service Accessibility
Network Availability
Network Accessibility
Service Integrity
Service Retainability
USA*E P0ASES (USA*E P0ASES (USE-USE- POINT O2POINT O2 IE/)IE/)
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Load for a predefined QoS
System capacity QoS
System capacity for a
predefined load
QoS
-E.ATION-E.ATION QOSQOS @@ CAPACIT1CAPACIT1 @@ .OA5.OA5
Load for a predefined
Capacity
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CONTENTSCONTENTS
II% QoS criteria
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QOSQOS C-ITE-IAC-ITE-IA
QoS User criteria
lassi!all& (voi!e servi!e) 4 main !ri#eria allo%
'sers #o eval'a#e #e ne#%or 'ali#& o ervi!e+
overa.e
all es#ablismen#
oi!e 'ali#&
all dro"*
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QOS C-ITE-IAQOS C-ITE-IA
Qos O4erator evaluation
Coverae
anno# be assessed #ro'. #e s&s#em*
7adio meas'remen#s and s'bs!ribers
Communication uality durin te call
7adio meas'remen#s
&s#em meas'remen#s
oi!e 'ali#& anal&$ers
Successful call rate
&s#em meas'remen#s
Call dro4 rate
&s#em meas'remen#s
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onversa#ional 79,
#reamin. 79,
In#era!#ive 79, P/97P 1
In#era!#ive 79, P/97P 3
,a!.ro'nd 79,
-NC $* **SN$*S*SN
A44licationserver
Node B
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;ser "roiles are s#ored in 7*
Aa! 'ser !an ave several 'ser
"roiles %i! !orres"ond #o dieren#
servi!es and are ma""ed #o dieren#bearers a!!ordin. #o #e o"era#orGs
s#ra#e.&*
QOSQOS C-ITE-IA8 OPE-ATO- ST-ATE*1C-ITE-IA8 OPE-ATO- ST-ATE*1
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E"era#or !an "rovide+
User differentiation %i# #e
a##rib'#ion o o "roiles #o
dieren# 'sers
Service differentiation %i#
!orres"ondin. #o ea! servi!e #e
!orres"ondin. s'""or# a!!ordin. #o
servi!es !ara!#eris#i!s*
o a#isa!#ion o dieren# 'sers
needed
o 9llo!a#ion o #e re'ired
'ali#& o servi!e
o ;sa.e o"#imi$a#ion o
ne#%or reso'r!es
QOSQOS C-ITE-IA8 OPE-ATO- ST-ATE*1C-ITE-IA8 OPE-ATO- ST-ATE*1
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Qalit) of Ser*ice + o*era-e
ITU Rec "##+ "robabili#& #a# #e 'ser
re!eives a si.nal in s"e!ii! !ondi#ions
Reasons.'ctions+
N'mber o si#es
Posi#ion o #e si#es
9n#ennas #&"e dire!#ion and ei.# (7F
design)
E'#"'# "o%er and !able losses
(ins#alla#ion or main#enan!e)*
QOSQOS C-ITE-IAC-ITE-IA
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Qalit) of Ser*ice + Sccessfl call rates
ITU Rec "## + "robabili#& #a# a servi!e!an be ob#ained b& #e 'ser in !er#aino"era#ional !ondi#ions
Reasons.'ctions+
Cinim'm a!!ess level in #e !ell
?ieren!e be#%een #e dimensionin. o
#e reso'r!es and #e oered #rai!
In#ereren!es
7adio !overa.e
QOS C-ITE-IAQOS C-ITE-IA
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CONTENTSCONTENTS
III% Test8 Evaluation of te QoS
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1- overa.e BC BP7 A?BA ;C
2- Ceas'remen#s 'ali#& o servi!e voi!e
9!!essibili#&
Cain#ainabili#& o !omm'ni!a#ion oi!e 'ali#&
3- 'ali#& o servi!e C
4- 'ali#& o servi!e ?99
CC
H9P
FP
T)pe of tests
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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Aval'a#ion o #e !overa.e (in!ar indoor o'#door)
Ceas'remen#s in Idle mode
In ?edi!a#ed mode #e "o%er !on#rol dis#or#s #e
res'l#s
resold level o !overa.e+
Threshold Indoor Incar Outdoor
Values - 67dbm - 87dbm - 90dbm
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
o*era-e
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alibra#ion o si.nal level s#ren.#
Ne!essar& e'i"men#s+ meas'remen#s #ools
Ceas'remen#s #&"e+ i#& 7o'#e #rain Indoor
+easurements tools8
a"#o"
o#%are
BPra!e mobile
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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'ccessibilit) e*alation from a re-lator point of *iew
/et0od
!ond'!# several !all a##em"#s s"a!ed %i# 30 se!ondsminim'm
Ceas're And o And b& inves#i.a#ors or ?rive #es#!am"ai.n
resold blo!a.e ra#e a# b's& o'r+ 2
'ccessibilit) rate n'mber s'!!ess'l o !omm'ni!a#ions
(dela& o !onne!#ion J 10s )/#o#al !all a##em"#s n'mber
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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!%ample+ bad !omm'ni!a#ion 'ali#&*
Reasons.'ctions1
AD#ernal in#ereren!es
o-!annel or adja!en# !annel in#ereren!es
E'#-o-!overa.e
,ad ins#alla#ion
ransmission ne#%or (eD*+ e!o !an!eller or #r'ns)*
Qalit) of Ser*ice + 2oice 3alit)
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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2oice Qalit) measrements principle
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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/ain factors impactin- t0e 2oice Qalit)
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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I;- P*800 re!ommenda#ion
A&solute Cateory -atin (AC-)8
AD!ellen# (5)
Bood (4)
Fair (3)
Poor (2)
,ad (1)*
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
2oice Qalit) measrements
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Qalit) of Ser*ice + all droppin-
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
Reasons.'ctions1
overa.e
In#ereren!e
andover "roblems
7adio "arame#ers lo!al#'nin.
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Qalit) of Ser*ice + //S 3alit)
TEST8TEST8 EA.UATION O2 T0E QOSEA.UATION O2 T0E QOS
onsis# in an eD!an.e o C be#%een
#%o 'sers e'i"men#s ( #ransmi##er- re!eiver)
e eval'a#ion indi!a#ors are+
K Fail're ra#io
K N'mber o errored messa.es
K ?ela& o re!e"#ion( J30s 30 2 min'#es L 2 min'#es)*
K 9vera.e re!e"#ion dela&
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TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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Qalit) of Ser*ice + //S 3alit)
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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Qalit) of Ser*ice + 4ata ( 5TP$
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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!%ample of measrements
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Nouakchott
Nouadhibo
AxeNK
C/ND
AxeRo
sso
Faiblesse (Rxlev< -94 dBm)
(-94 dBm
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!%ample of measrements
TEST8TEST8 EA.UATION O2 T0EEA.UATION O2 T0E QOSQOS
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CONTENTSCONTENTS
I% Quality of Service in *S+,*P-SQuality of Service in *S+,*P-S
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Interfaces Blockin- rate
;m/ 2 (1 #o 5)
;m/? 0*1 (0 #o 1)
BC-7 0*5 (0*1 #o 1)
9 0*1 (0 #o 1)
9bis 0
9#er 0*1 (0 #o 1)
GS/ GoS (t)pical *ales$
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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Indicators Outdoor Indoor Incar
Bloc7ae rate J 2 J 2 J 2
5ro44ed rate J 2 J 2 J 2
Po6er in dBm - >0 - 6 - 8
E '!!ess ra#e L >0
'ali#& 7M;9 J 4 or >5 #e sam"les
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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QoS 4rofile (limitation &y tetrou4ut class su44orted &y
te client)QoS services
Priorityclasses
ervi!e main#ain in !ase omal'n!#ionin.+
1* i. "riori#&
2* Cedi'm "riori#&3* o% "riori#&*
Pa!e# "riori#&+
1* i.+ onserve "a!e# in !ase o!on.es#ion
2* Normal+ onserve "a!e# a#er #ose%i# i. "riori#&
3* o%+ Alimina#e "a!e# in !ase o a"roblem*
-elia&ilityclasses
7esid'al error !orre!#ion (?a#aloss error da#a :)+
1* IP s'bs!ri"#ion2* 'bs!ri"#ion < %i#o'# errorsensi#ivi#& =*
Probabili#& loss d'"li!a#ion :+1* ensi#ive #o errors %i#o'#!orre!#ion !a"a!i#& limi#a#ion o error#oleran!e2* ensi#ive #o errors limi#a#ion!orre!#ion !a"a!i#& .ood #oleran!e
3* ensi#ive #o errors .ood !orre!#ion!a"a!i#& or ver& .ood #oleran!e
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
GPRS (QoS indicators$
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QoS 4arameters of a P5P conte9t8
Pre!eden!e !lass+ 1 2 e# 3 (1as "riori#&)
?ela& lass+ 1-4 (4 bes# eor#)
7eliabili#& !lass+
1+ BP 9 9/"ro#e!#ed 7 9
2+ BP ;N9 9/"ro#e!#ed 7 9
3+ BP ;N9 ;N9/"ro#e!#ed 7 9
4+ BP ;N9 ;N9/"ro#e!#ed 7 ;N9
5+ BP ;N9 ;N9/non-"ro#e!#ed 7 ;N9
CaDim'm #ro'."'# !lass+ 1-> (8 O 2 048 b/s)
Cedi'm #ro'."'# !lass+ 1-1> (022 bi#s/s O 111 b/s)
QoS GPRS profile (R67.R6"$
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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Ene "roile "er os ?P? !on#eD#
os "roile "arame#ers non de#ailed in #e s#andard
on#rol reso'r!es #ools in #e , are limi#ed (bes# eor# in
release 1)
Pre!eden!e "er !on#eD# P?P*
7>/7>8 E in !ase o lo% load "er !ell*
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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*P-S -8 Su&set of QoS 4rofile $*PP
9llo!a#ion/re#en#ion "riori#& (97P)
rai! !lass rai! andlin. "riori#& (P)
o In#era!#ive+ P1-3o ,a!.ro'nd*
7eliabili#& "arame#ers+
o 7esid'al ,A7
o ?; error ra#e
o ?; deliver& %i# error*
CaDim'm #ro'."'#
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
QoS GPRS profile (R66$
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ervi!es+
o H9P
o CC+ #eD# ima.es video !li"s*
Amail
?o%nloadin.
:
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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I#em AD!ellen# Bood 9vera.e ,es# Aor#
+OS 4-5 3*8-4*2 2*>-3*8 2-2*>
Call
esta&lisment
delay
J 1*5 se!* 1*5 3
se!*
L 3 se!* L 3 se!*
-ound:tri4 delay
(ms)
J 150 150 250 250
450
L 450
itter (ms) J 1 J 18 L 18 L 80
Pac7et loss (D) J 1 J 5 J 10 J 10
8t0er QoS indicators
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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Transmission dela)
FiDed ne#%or (PN)+ 35 mse! end-#o-end
Node , 7N Q3BPPR+ J 10 ms
;79N (real #ime servi!es)+ J 5 ms
;79N (non real #ime servi!es)+ J 10 ms
7adio in#era!e+ 0-80 mse! in ea! dire!#ion*
&oss rate
;79N+ J 10-4 (real #ime #rai!) 10- (non real #ime#rai!)
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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Rond9trip transmission dela)s for IP packets
BP7+ 650 ms
A?BA (7>>)+ 300-500 ms
;C+ 200 ms*
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
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Indicators Tresold
?ro""ed !all 2
?ro""ed !all ( ard%are !a'ses) 1
?ro""ed !all ( 7adio !a'ses) 2
?ro""ed E 1
,lo!a.e 2
,lo!a.e ? 05
all s'!!ess es#ablismen# >5
E (bes# !ell) 50
E ('ali#&) 30
E (s#ren.# si.nal level) 20
E (in#ereren!e) 1
E (s'!!ess) >0
QUA.IT1 O2 SE-ICE IN *S+,*P-SQUA.IT1 O2 SE-ICE IN *S+,*P-S
60
Averae data
trou4ut
Ne#%or !overa.e divided in#o "iDels %i# #e samesi$e (, !loses "iDels o #e i.es# #ro'."'# #o#ose o !ell border)* 9vera.e #ro'."'#9vera.eo all "iDels
D of datatrou4ut
ro'."'# !al!'la#ion "iDel b& "iDel*
Cinim'm #ro'."'# minim'm ro'."'#rea!ed b& leas# D o "iDels(eD*+ 50 >0 >5)*
+inimum
uaranteed
trou4ut
Cinim'm .'aran#eed #ro'."'# %i# a "robabili#&or a s"e!ii! area
4ata t0ro-0pt calclation
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61
A44lication trou4ut
(en 7&,s)
Performance 4arameters and taret values
And #o end
dela&
@i##er Inorma#ion
loss
oi!e 4 25J 150 ms
CaD+ 400 ms
J 1 ms J 3 FA7
CaD+ 5
ideo "one 32 384
J 150 ms
CaD+ 400 ms
&n!ro* J 100
ms
J 1 FA7
eleme#r& J 288 J 250 ms / 0
on*ersational real time ser*ices percei*ed b) sers
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62
oice service Pac7et data services (*P-S,E*P-S)
Avalibilibiliy of service or non Avaliability service with uality certain uality
Distance MS-BTS
Service quality
Distance MS-BTS
Service quality
!*oltion 2oice QoS94ata QoS
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CONTENTSCONTENTS
% Quality of ServiceQuality of Service in U+TSin U+TS
64
Traffic classes Conversational Streamin Interactive Bac7round
+ain
caracteristics
Cinim'm j i##er
o% dela&
Cinim'm
ji##er
'es#ion/res"onse
mode
Cinimi$es #e errors
No dela&
!ons#rain#s
Cinimi$es #eerrors
E9am4le oi!e ideo Heb bro%sin. Amails
U/TS QoS classes
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K 7eal #ime !omm'ni!a#ions
K oi!e
K eD#
K ideo
K Non real #ime !omm'ni!a#ions
K 9'dio s#reamin.
K ideo s#reamin.
K ?a#a iles
K eD# messa.in. (eD* C)
K Amail
K Heb bro%sin.
K C'l#imedia messa.in.
/ltimedia ser*ices
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66
Traffic class onversa#ion* #reamin. In#era!#ive ,a!.ro'nd
ma9imum trou4ut (7&,s)J 2048
scedulin Ses / No
ma9% S5U siFe (octets) 1 500 or 1 502Corru4ted S5U delivery Ses/No
residual BE-
5T10-2 10-2 5T10-3
10-4 10-65T10-2 10-2
5T10-3 10-3
10-4 10-5 10-6
4T10-3 10-
5 6T10-84T10-3 10-5
6T10-8
S5U error rate
10-2 T10-3 10-3 10-
4 10-510-1 10-2
T10-3 10-3
10-4 10-5
10-3 10-4
10-6
10-3 10-4 10-
6
transfer delay (ms)
100 maDim'm
val'e
250
maDim'm
val'e
Some *ales of QoS U/TS parameters classes
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6
And #o end servi!es 'sed b& #erminal (A erminal A'i"men#)a!ieved b& #e !ombina#ion o+
U+TS Bearer Service8 deined b& #e 79, (7adio 9!!ess ,earer) and#e servi!e o N (ore Ne#%or)
Service -AB8 oniden#ial #rans"or# o #e si.nalin. and da#a be#%eenC e# N* ervi!es based on radio in#era!e !ara!#eris#i!s *
Service su44ort CN8 !on#rol and 'sa.e o !ore ne#%or*
-adio su44ort (-B)8 !overs all #rans"or# as"e!#s o radio in#era!e* es'""or# servi!e I' "rovide #rans"or# be#%een ;79N and N*
QUA.IT1 O2 SE-ICE IN U+TSQUA.IT1 O2 SE-ICE IN U+TS
QoS U/TS classes
68
TE MTUTRAN
TECN
gtwCN Iu Edge
Node
End to end services
ExternalService
Support
Service support UMTSSupportTE/MT
Radio servicesupport
ServiceUTRA
FDD/TDD
ServiceSupport Iu
PhysiqueServiceSupport
RAB service
ServiceSupport
Backbone
Servicesupport CN
RRM
GTP Packets
ATM: manage ATM
traffic and division in cells
RNCNode B
CN
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1
QoS attri&uts - alues e9am4le
7esid'al ,A7 10 5
?; error ra#io 10 4
?eliver& o erraneo's ?;s No
CaDim'm ?; si$e (o!#e#s) 1500
?eliver& order No
ranser dela& 100 ms (!onversa#ional)
280 ms (s#reamin.)
97P 1 2 or 3
rai! !lasses onversa#ional s#reamin.in#era!#ive ba!.ro'nd
P 1 2 or 3 (same as 97P)
CaDim'm bi# ra#e e*.* 64 128 or 384 b"s
CaDim'm .'aran#eed bi# ra#e e*.* 64 128 or 384 b"s
Depends onoperator strategy
Depends on QoS
strategy andcapacity
of UE/RNC
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2
onversa#ional 79,
#reamin. 79,In#era!#ive 79, P/97P 1
In#era!#ive 79, P/97P 3
,a!.ro'nd 79,
++S
/e&
&ro6sin
Pus:to:tal7
Streamin
ideo
tele4ony
T0P G Traffic 0andlin Priority
A-P G Allocation and retention 4riority
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QoS traffic differentiation
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3
CONTENTSCONTENTS
I% Quality of ServiceQuality of Service in .TEin .TE
4
e #rai! r'nnin. be#%een a "ar#i!'lar !lien# a""li!a#ion and aservi!e !an be dieren#ia#ed in#o se"ara#e servi!e da#a lo%s(?Fs)
?Fs ma""ed #o #e same bearer re!eive a !ommon o#rea#men#
QUA.IT1 O2 SE-ICE INQUA.IT1 O2 SE-ICE IN .TE.TE
&T! QoS 5ramework
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5
9 bearer is assi.ned a s!alar val'e reerred #o as a o !lass
iden#iier (I)
B'aran#eed bi# ra#e (B,7)
Non-.'aran#eed bi# ra#e (non-B,7)
9 non-B,7 bearer is reerred #o as #e dea'l# bearer
%i! is also 'sed #o es#ablis IP !onne!#ivi#&*
QUA.IT1 O2 SE-ICE INQUA.IT1 O2 SE-ICE IN .TE.TE
&T! bearer
6
o !lass iden#iier (I)
9 s!alar re"resen#in. a se# o "a!e# or%ardin. #rea#men#s
9llo!a#ion and re#en#ion "riori#& (97P)
9 "arame#er 'sed b& !all admission !on#rol and overload!on#rol
CaDim'm bi# ra#e (C,7)
B'aran#eed bi# ra#e (B,A)
9..re.a#e C,7 (9C,7)
e #o#al amo'n# o bi# ra#e o a .ro'" o non-B,7 bearers
QUA.IT1 O2 SE-ICE INQUA.IT1 O2 SE-ICE IN .TE.TE
QoS attribtes associated wit0 t0e &T! bearer
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QUA.IT1 O2 SE-ICE INQUA.IT1 O2 SE-ICE IN .TE.TE
&T! standardi:ed QI c0aracteristics
8
e A air in#era!e s!ed'ler 'ses #e ollo%in. inorma#ion
as in"'#
7adio !ondi#ions a# #e ;A iden#iied
e o a##rib'#es o bearers
e in#ereren!e si#'a#ion in #e nei.borin. !ells
QUA.IT1 O2 SE-ICE INQUA.IT1 O2 SE-ICE IN .TE.TE
&T! 'ir Interface Sc0edler
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>
e b'er s#a#'s re"or#in. me!anism inorms #e ; "a!e#
s!ed'ler abo'# #e amo'n# o b'ered da#a a# #e ;A
9 "eriodi! ,7 #ri..er does no# !a'se a servi!e re'es#(7) #ransmission rom #e ;A
E#er%ise #e 7 is #ransmi##ed via a random a!!ess
"ro!ed're or# orma# !an be 'sed #o re"or# on one radio
bearer .ro'"
on. orma# one !an be 'sed or o'r .ro'"s
QUA.IT1 O2 SE-ICE INQUA.IT1 O2 SE-ICE IN .TE.TE
Bffer Stats Reportin-
80
CONTENTSCONTENTS
II% SummarySummary
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SummarySummary
Summary
ario's s!emes ave been seen or
main#ainin. o in !ell'lar Ne#%ors and ea!
as i#s advan#a.es and disadvan#a.es
C'l#imedia servi!es are dela& sensi#ive and
re'ire i. band%id#*
7ene.o#ia#ion and !annel re'se are .ood
#e!ni'es #o ass're be##er o and i. da#ara#e
82
Tan7Tan7 youyou