workshop - hsdpa
TRANSCRIPT
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HSDPA RRM
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Contents
• HSDPA Principle
• HSDPA Channel
• RU3 Capa!ilities
• HSDPA Power Allocation
• HSDPA Co"e Allocation
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HSDPA Principles: Contents
• A"apti#e $o"%lation an" Co"in&
• $%lti Co"e 'peration
• Network $o"i(ications
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Adaptive Modulation and Coding (1/2)
I
!!!!
!!1!
!!11
!!!1
1!!!
1!1!
1!11
1!!1
11!!
111!
1111
11!1
!1!!
!11!
!111
!1!1
1"AM#$%it &e'ing
PS&
2$%it &e'ing
I
(11)(!1)
(1!)(!!)
HSDPA uses• PS&• 1"AM
d'naicall' *ased on+ualit' o, t-e radio lin.
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Adaptive Modulation and Coding (2/2)
Rate
Matc-ing
Puncturing /
Repetition
Rate
Matc-ing
Puncturing /
Repetition
ur*o Coding1/0
ur*o Coding
1/0
,,ective
Code Rate:
1/# $ 0/#
HSDPA Adaptive Coding
• *ased on t-e R33 1/0 ur*o Coding
• Rate Matc-ing: Puncturing or Repetition
⇒ code rate: 1/" 4 #/#
• d'naicall' *ased on
+ualit' o, t-e radio lin.
HSDPA Adaptive Coding
• *ased on t-e R33 1/0 ur*o Coding
• Rate Matc-ing: Puncturing or Repetition
⇒ code rate: 1/" 4 #/#
• d'naicall' *ased on
+ualit' o, t-e radio lin.
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C1, - .1
C2,1 - .101
C2, - .11
C), - .1111
C),1 - .110101
C),2 - .101101
C),3 - .101011
C, - .11111111
C,1 - .111101010101
C,2 - .110101110101
C,3 - .110101010111
C,) - .101101101101
C,* - .101101011011
C,+ - .101011101011
C, - .101011011101
C1+, - .
C1+,1 - .
C1+,1* - .
C1+,1) - .
C1+,13 - .
C1+,12 - .
C1+,11 - .
C1+,1 - .
C1+,4 - .
C1+, - .
C1+,- .C1+,+ - .
C1+,* - .
C1+,) - .
C1+,3 - .
C1+,2 - .
S5 6 1 2 # 7 S5 6 1" 28" 812999
S5 6 1"
2#! .s'*/s
Multi$Code operation:
19918 codes
!92# 99 09" Ms'*/s
S5 6 1"
2#! .s'*/s
Multi$Code operation:
19918 codes
!92# 99 09" Ms'*/s
Multi Code peration (1/0)
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Multi Code peration (2/0)
5 6678 6ransmission 6ime 7nter#al
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Multi Code peration (0/0)
5 6678 6ransmission 6ime 7nter#al
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;
R<CIu*
<ode%
;u
R e d u c e d
r e t r a
n s
) i s s i o n
R e d u c e d
r e t r a
n s
) i s s i o n
R<C:
H= > S=$
odi,ications
R<C:
H= > S=$
odi,ications?ore intelligence@
S= odi,ications
ne ;s
(H= > S=)
ne ;s
(H= > S=)
<etor. Modi,ications
;RA< and ;
• odi,ied PHB la'er
• odi,ied MAC
• odi,ied transport andp-'sical c-annels
• odi,ied coding
• odi,ied odulation
HSDPA: ,unctionalities s-i,ted ,ro
R<C to <ode %
• Ac.noledged transission (H$AR)
,aster retransission / reduced dela's
less Iu* tra,,ic
• ; pac.et sc-eduling
,ast ; resource allocation
,ast lin. adaptation ,or AMC
copensation o, ,ast ,ading (it-out ,ast PC )
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HSDPA C-annels: Contents
• Ph9sical Channels• Ph9sical Channel '#er#iew
• HS0PDSCH
• HS0DCCH
• Associate" D: DPDCH
• HS0DPCCH
• Associate" U: DPDCH
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P-'sical C-annel vervie
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HS$PDSCH (1/2)
• HS$PDSCH: Hig-$Speed P-'sical Donlin. S-ared C-annel
• rans,er o, actual HSDPA data
• 8$18 code c-annels
• PS& or 1"AM odulation
• Divided into 2 s Is
• 5iEed S51"
S56 1
S56 2
S56 #
S56 7
S561"
Eaple: Allocated ,or HS$DSCHallocated ,or ot-er c-annels
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HS$PDSCH (2/2)• HS$PDSCH code set paraeter
• Speci,ies -et-er nu*er o, code c-annels reserved ,or HSDPA is ,iEed or
d'naicall' adFusta*le *' t-e netor.
• Miniu 8 code c-annels• MaEiu 18 codes c-annels
• Possi*le nu*ers o, code c-annels ena*led / disa*led *it ise
HS$PDSCH code set
HSPDSCHCodeSet (=C) ($) ($) (8 codes)
Eaples
!!!!! !!!!! 1!!!!! 6 ala's 8 codes reserved (de,ault)
11!1! 1!1!! 1!!!!! 6 nu*er o, reserved codes adFusta*le (8 7 1! 12 1# or 18 codes
recoended)
!$# codes ala's disa*led11$18 codes
"$1! codes
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HS$SCCH
• HS$SCCH: Hig-$Speed S-ared Control C-annel
• 1 Control Data ,or ;G in,ors t-e ; -o to decode t-e neEt HS$PDSCH ,rae
e& U; 7"entit9, Channelisation Co"e Set, $o"%lation Scheme, 6<S, H0AR= process in(ormation
• 5iEed S5127
• <o.ia ipleentation it- slo poer control: s-ares D poer it- t-e HS$PDSCH
• More t-an 1 HS$SCCH re+uired -en code ultipleEing is used
%S: ransport %loc. Sie
• Code ultipleEing
• HSDPA service ,or several userssiultaneousl'
• 5or eac- user individual HS$SCCHre+uired
• availa*le onl' i, 8 codes can *ereserved ,or HS$PDSCH
S51"
HS$PDSCH
ie
;ser 1 ;ser 2 ;ser 0 ;ser #
Su*,rae
2 s
8
1!
18
MaEiu nu*er o, HS$SCCH codes
MaE<*r,HSSCCHCodes (=C) (1990) ( 6 1) (1)
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HS$DPCCH
• HS$DPCCH: Hig-$Speed Dedicated P-'sical Control C-annel
• MAC$-s Ac./<ac. in,oration (send -en data received)
• C-annel ualit' In,oration (CI reports send ever' #s -ardcoded period)• 5iEed S5 28"
HAR$AC&
(1! *it)
1 Slot 6 28"! c-ip 2 Slots 6 812! c-ip
Su*,rae J ! Su*,rae J i Su*,rae J <
1 HS$DPCCH Su*,rae 6 2s
CI (2! *it)
C-annel ualit' Indication
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HS$DPCCH > CI
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Associated DPDCH (D > ;)
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R;0! Capa*ilities: Contents
• S%mmar9
• >eat%re Acti#ation
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Suar'
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5eature Activation
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%asics o, HSDPA Poer Allocation: Contents
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%asics o, HSDPA Poer Allocation: Contents
• Static HS0PDSCH Power Allocation
• D9namic HS0PDSCH Power Allocation
Static HS PDSCH Poer Allocation (1/#)
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Static HS$PDSCH Poer Allocation (1/#)
• Re+uired paraeter settings ? D'naic HS$PDSCH poer allocation disa*led
? @5iEedK HS$PDSCH poer de,ined it- PtEMaEHSDPA
• Slo adFustent o, HS$PDSCH poer PHS$PDSCH due to HS$SCCH poerconsuption
? otal HSDPA poer PHS$PDSCH L PHS$SCCH c-ec.ed against PtEMaEHSDPA
? I, t-res-old eEceeded PHS$PDSCH reduced *' -ardcoded step
? I, total HSDPA poer *elo PtEMaEHSDPA $ 2 d% PHS$PDSCH increased *' -ardcoded step
• Recoendations ? I, 2! = carrier s-ared *' R33 and HSDPA users no ,urt-er gain ,or total t-roug-put *e'ond
PtEMaEHSDPA 6 " =
? I, carrier dedicated to HSDPA users onl' PtEMaEHSDPA can *e set to aEiu cell poer
MaEiu alloed HSDPA poer PtEMaEHSDPA (=C) (!998! d%) (
6 !91 d%) (#0 d%)
Static HS PDSCH Poer Allocation (2/#)
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Static HS$PDSCH Poer Allocation (2/#)
• Re+uired paraeter settings
? Hig-er priorit' ,or HSDPA or R33 <R users in case o, -ig- load it- HSDPAPriorit'
(setta*le on R<C level onl')
? Modi,ied load target ,or R33 it- PtEargetHSDPA (set a*solutel' in d%)
? PtEMaEHSDPA and PtEargetHSDPA s-ould *e set in suc- a a' so t-at
? MaEiu cell poer $ PtEargetHSDPA PtEMaEHSDPA
? t-erise t-e ,orer liits t-e HSDPA poer
? Modi,ied overload t-res-old ,or R33 it- PtE,,setHSDPA (set relative to
PtEargetHSDPA in d%)
? All t-ese paraeters are ignored *' d'naic HS$PDSCH poer allocation
HSDPA priorit'
HSDPAPriorit' (R<C) (1992) (
6 1) (1 6 -ig-er priorit' ,or HSDPA)
arget ,or transitted non$HSDPA poer
PtEargetHSDPA (=C) ($1!998! d%) (
6 !91 d%) (0798 d%)
,,set ,or transitted non$HSDPA poer
PtE,,setHSDPA (=C) (!99" d%) (
6 !91 d%) (!97 d%)
Static HS PDSCH Poer Allocation (0/#)
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Static HS$PDSCH Poer Allocation (0/#)
• Rules ,or HSDPAPriorit' 6 1 (-ig-er priorit' ,or HSDPA)
? A: 1st HSDPA users enters cell
<on controlla*le tra,,ic PtE<C PtEargetHSDPA Can -ave HSDPA
t-erise can -ave R33 onl'
? HSDPA alread' active
R33 sc-eduled up to PtEargetHSDPA
? %: verload ,or total R33 tra,,ic PtEnonHSDPA odi,ied overload t-res-old
Standard R33 overload actions
? C: verload ,or non controlla*le tra,,ic PtE<C odi,ied overload t-res-old
HSDPA released
MaE poer <ode % E poer
A
PtE,,setHSDPAPtEnonHSDPA
PtE<C
PtEargetHSDPA
%
PtEtotal
PtEarget
C
Static HS$PDSCH Poer Allocation (#/#)
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Static HS$PDSCH Poer Allocation (#/#)
• Rules ,or HSDPAPriorit' 6 2 (-ig-er priorit' ,or R33)
? A: 1st HSDPA users enters cell
otal R33 tra,,ic PtEnonHSDPA PtEargetHSDPA Can -ave HSDPA
t-erise can -ave R33 onl'
? HSDPA alread' active
R33 sc-eduled up to PtEargetHSDPA
? %: verload ,or total R33 tra,,ic PtEnonHSDPA odi,ied overload t-res-old
HSDPA released
? C: Standard overload ,or total R33 tra,,ic PtEnonHSDPA standard overload t-res-old
Standard R33 overload actions
MaE poer
<ode$% E poer
PtE,,setHSDPA
PtEnonHSDPA
PtE<C
PtEargetHSDPA
PtEtotal
PtEarget
PtE,,set
A % C
D'naic HS$PDSCH Poer Allocation (1/N)
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D'naic HS$PDSCH Poer Allocation (1/N)
• static poer allocation d'naic poer allocation
• PHSDPA PtEMaEHSDPA PHSDPA in(PtEMaEHSDPA PtECellMaE)$ poer allocated
to R33 DCH and D control c-annels
• 5iEed load target PtEargetHSDPA D'naicall' adFusted load target PtEargetPS
• 5iEed overload t-res-old ,or R33 verload t-res-old ,or R33 goes parallel to load target
PtEargetHSDPA L PtE,,setHSDPA PtEargetPS L PtE,,set
• In case o, overload HSDPA ig-t *e In case o, overload HSDPA poer ig-t *e reduced
released iediatel' *ut usuall' service not released iediatel'• Priorities distinguis- *eteen R33 and Priorities distinguis- *eteen interactive and
HSDPA users onl' *ac.ground users as ell
MaEiu alloed HSDPA poer
PtEMaEHSDPA (=C) (!998! d%) (
6 !91 d%) (#0 d%)
arget ,or transitted non$HSDPA poer PtEargetHSDPA (=C) ($1!998! d%) (
6 !91 d%) (0798 d%)
,,set ,or transitted non$HSDPA poer
PtE,,setHSDPA (=C) (!99" d%) (
6 !91 d%) (!97 d%)
HSDPA D'naic Resource Allocation
HSDPAD'naicResourceAllocation (R<C)
(!991) (
6 1) (! 6 disa*led)
Cell aEiu transission poer
PtECellMaE (=C) (!998! d%) ( 6 !91 d%) (#0 d%)
,,set ,or transitted poer
PtE,,set (=C) (!99" d%) (
6 !91 d%) (1 d%)
D'naic HS$PDSCH Poer Allocation (2/N)
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• %S a' allocate all unused D poer up to aEiu cell poer
• All poer availa*le a,ter DCH tra,,ic HS;PA control and coon c-annels can *eused ,or HSDPA
PtE<C
PtE<R
PtEHSDPA
PtEMaE 6 in (PtECellMaE MaEDPoerCapa*ilit')
PtE<onHSDPA
D'naic HS$PDSCH Poer Allocation (2/N)
D'naic HS$PDSCH Poer Allocation (0/N)
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D'naic HS PDSCH Poer Allocation (0/N)
<o active HSDPA users
• <R DCH sc-eduling to PtEarget L PtE,,set
• R DCH adission to PtEarget
Active HSDPA users
• <R DCH sc-eduling to PtEargetPS
• R DCH adission to PtEarget
HSDPA active<o HSDPA users <o HSDPA users
PtxTarget + PtxOffset
PtxMax
PtEargetPS
PtE<C
PtE<R
PtEHSDPA
1
2
0
PtE<onHSDPA
PtEotal
D'naic HS$PDSCH Poer Allocation (#/N)
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D'naic HS PDSCH Poer Allocation (#/N)
D'naic load target
• AdFusta*le load target PtEargetPS
• PtEargetPSMin (iniu value)• PtEargetPSMaE (aEiu value also initial value)
Ideal load target
• stiated *' R<C in dependence on
• <on controlla*le tra,,ic
• <R DCH tra,,ic (including eig-ts o, individual services)• <R HSDPA tra,,ic (including eig-ts o, individual services)
Min DCH PS target ,or d'naic HSDPA pr allocation
PtEargetPSMin (=C) ($1!998! d%) (
6 !91 d%) (0" d%)
MaE DCH PS target ,or d'naic HSDPA pr allocation
PtEargetPSMaE (=C) ($1!998! d%) (
6 !91 d%) (#! d%)
D'naic HS$PDSCH Poer Allocation (8/N)
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D'naic HS PDSCH Poer Allocation (8/N)
=eig-ts o, individual services
• Can *e set individuall' ,or eac- release
? R33 (structured paraeter =eig-tDCH)
? HSPA (structured paraeter =eig-tHSPA)
• Can *e set individuall' ,or eac- tra,,ic class
? Interactive HP1 HP2 HP0
? %ac.ground
• In case o, ulti$RA% t-e average eig-t o, t-e individual RA%s is ta.en ,or t-at user
Structured paraeter =eig-tDCH=eig-t o, <R DCH ; %O RA%
=eig-tDCH%O (R<C) (!91!!) ( 6 1) (18)
=eig-t o, <R DCH ; HP1/2/0 RA%
=eig-tDCHHP1/2/0 (R<C) (!91!!) ( 6 1)
(3!/"8/#!)
Structured paraeter =eig-tHSPA
=eig-t o, HSPA ; %O RA%=eig-tHSPA%O (R<C) (1991!!) (1) (28)
=eig-t o, HSPA ; HP1/2/0 RA%
=eig-tHSPAHP1/2/0 (R<C) (!91!!) (
6 1)
(1!!/N8/8!)
1*2*<ack&ro%n"
)*7nteracti#e
6HP3
+**7nteracti#e6HP2
417nteracti#e6HP1
DCH wei&ht#al%e @1
HSDPA wei&ht#al%e @1
ra,,ic Class
D'naic HS$PDSCH Poer Allocation ("/N)
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PtEMaE #0 d%
PtEargetPS
PtE<C
PtE<R
PtEHSDPA
1
2
PtE<onHSDPA
PtEotalPtEHig-HSDPAPr
#1 d%
Ideal PtEargetPS
PtEargetPSMaE#! d%
PtEargetPSMin
0" d%
D'naic HS PDSCH Poer Allocation ("/N)
1) HSDPA poer congestion i, PtEtotal PtEHig-HSDPAPr
Decrease PtEargetPS *' 1 d% (i, a*ove ideal value) *ut not *elo iniu value (0" d%)
Hig- t-res-old o, PtEotal ,or d'naic HSDPA pr alloc
PtEHig-HSDPAPr (=C) ($1!998! d%) ( 6 !91 d%) (#1 d%)
D'naic HS$PDSCH Poer Allocation (N/N)
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PtEargetPSMin
0" d%
2) <R DCH poer congestion i, PtE<onHSDPA PtEargetPS $ 1d% (-ardcoded argin)
Increase PtEargetPS *' 1 d% (i, *elo ideal value) *ut not a*ove aEiu value (#! d%)
PtEMaE #0 d%
PtEargetPS
PtE<C
PtE<R
PtEHSDPA
1
2
PtE<onHSDPA
PtEotalPtEHig-HSDPAPr
#1 d%
PtEargetPSMaE#! d%
' ( )
Ideal PtEargetPS
%asics o, HSDPA Code Allocation: Contents
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• Static an" D9namic Allocation
• D9namic Allocation Proce"%re
Static and D'naic Allocation (1/2)
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' ( )
HSPDSCHCodeSet11!1! 1!1!! 1!!!!!
HSPDSCHCodeSet!!!!! 1!1!! 1!!!!!
HSPDSCHCodeSet!!!!! !!!!! 1!!!!!
Additionall' re+uired
HSDPAD'naicResourceAllocation 6 ena*led
<u*er o, HS$
PDSCH codes (,ull
set)
HSDPA
18
Codes
HSDPA
1!
Codes
Static
code
allocation
8 Q Q Q
" $ $ $
N $ $ $
7 Q Q $
3 $ $ $
1! Q Q $
11 $ $ $
12 Q $ $
10 $ $ $
1# Q $ $
18 Q $ $
Static and D'naic Allocation (2/2)
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' ( )
D'naic code allocation applied i,
• HSDPA d'naic resource allocation
ena*led(HSDPAD'naicResourceAllocation)
• MaEiu nu*er o, codes iniunu*er (HSPDSCHCodeSet)
• %S capa*le o, 1!/18 codes
• <ote t-at HSDPA service starts it-iniu nu*er o, codes de,ined *'
HSPDSCHCodeSet
I, HSDPA d'naic resourceallocation disa*led 8 codes areavaila*le onl'
SF=8
SF=4
SF=2
SF=1
SF=16
1514131211109876543210
HS-PDSCH
………. ……….
SF=8
SF=4
SF=2
SF=1
SF=16
1514131211109876543210
HS-PDSCHRel-99 channels(& HS-SCCH)
Rel-99 code area (& HS-SCCH)
Shared code area
DedicatedHS-PDSCHcode area
SF=8
SF=4
SF=2
SF=1
SF=16
1514131211109876543210
HS-PDSCH
………. ……….
SF=8
SF=4
SF=2
SF=1
SF=16
1514131211109876543210
HS-PDSCHRel-99 channels(& HS-SCCH)
Rel-99 code area (& HS-SCCH)
Shared code area
DedicatedHS-PDSCHcode area
D'naic Allocation Procedure (1/2)
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Periodic upgrade
• R<C attepts periodic upgrade i,
• <u*er o, currentl' allocated HS$PDSCH codes aEiu alloed nu*er
• Supported *' %S capa*ilit'
• 5ree S5 1" codes adFacent to currentl' allocated ones availa*le
• A,ter upgrade still enoug- S5 127 codes availa*le (t-res-old HSPDSCHMarginS5127 setta*le *'operator de,ault 7 S5 127 codes restricts HSDPA to 1# codes)
• I, all conditions are ,ul,illed t-e neEt greater value ,ro t-e HS$PDSCH code set is ta.en
Periodic dongrade
• R<C attepts periodic dongrade i,
• <u*er o, currentl' allocated HS$PDSCH codes iniu alloed nu*er
• <ot enoug- S5 127 codes availa*le (sae t-res-old HSPDSCHMarginS5127 as entioned a*ove)
• I, all condition ,ul,illed t-e neEt loer value ,ro t-e HS$PDSCH code set is ta.en
HSPDSCHMarginS5127 6 7
< u ) * e r o , r e s
e r v e d
S 5 1 2 7 c o d e s
127
12!
tie
Here periodic dongrade
<o periodic upgrade
D'naic Allocation Procedure (2/2)
8/9/2019 Workshop - HSDPA
http://slidepdf.com/reader/full/workshop-hsdpa 41/42
)1 © Nokia Siemens Networks
• Code congestion events
• R re+uest congested due to lac. o, code HS$PDSCH dongrade in an' case
• <R re+uest congested due to lac. o, code HS$PDSCH dongrade onl' i, actuall' ,or HSDPA toouc- S5 1" codes in use
(t-res-old DPCHverHSPDSCH-res-old setta*le *' operator relative to t-e aEiu nu*er o,codes de,ault 8 S5 1" codes)
• iitations o, congestion triggered dongrade
• <ot *elo iniu alloed nu*er o, HS$PDSCH codes
• Hig-est still possi*le nu*er o, codes according HSPDSCHCodeSet is ta.en
< u ) * e r o , a
l l o c a t e d S 5 1 " c o d e s
DPCHverHSPDSCH-res-old
"
N
7
3
1!
11
12
10
1#
18
8
tie
Here dongrade i, R33 <R re+uest
reFected due to code congestion
Code ree
8/9/2019 Workshop - HSDPA
http://slidepdf.com/reader/full/workshop-hsdpa 42/42
)2 © Nokia Siemens Networks