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8/17/2019 Huawei Multi Carrier
1/25
HUAWEI TECHNOLOGIES CO., LTD.
www.huawei.com
Huawei Confidential
Security Level:
Multi-Carrier Strategy Training
8/17/2019 Huawei Multi Carrier
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SDPA性能研究与华为解决方案汇报
Key feature
Cases
Strategy an Pr!s "s C!ns
#"a$uat%!n
&ntr!u't%!n
2
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Introduction
• Background:Remark: Multi-carrier strategy also include multi-band situation, such as
U900+U2100.
With the steady growth of radio services especially the data services,
operators need to expand the capacity of the live network and addmore carriers are one of the choices. Currently multi-band and multi-
carrier networking has become a main scenario for lots of operator’s live
networks.
According to the analysis of the operators requirements we classify them
into two categories and they are refer system capacity and refer
voice !uality"
eploying different strategies will meet different operator’s requirements in
different scenarios
274389
621
9111221
1501
• Strategy content(
CampingPolicy o!ility
Policy
"cce##Policy Loa$
%alancePolicy
Statu#&ran#ition
'SP"(
Multi-Caie State!"
)eig*!oringCell anage
"lgorit*mS+itc*
SP,Setting
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#ccess policy feature $ %&% - %irected &etry %ecision
• In '((") and earlier versions* %&% is implemented +ased on +lind handover ,that is* the cell signal !uality
meets certain threshold* +ut not to measure the target cell"
• In '(.")* the original %&% algorithm implementation is kept* and measurement-+ased %&% algorithm is
added ,that is* to measure signals of the target cell"
/0 Improve the performance and successful of %&% access procedure* increase the delay
Measurement-+ased %&% or %&% of +lind handover is +ased on parameters configuration and
currently measurement-+ased %&% is closed +y default"
D#D$ Diecte% #et"Deci&io'
D#D (eatue )oacce&&
*oce%ue
#A+ Setu* *oce%ue Comi'e UE a'% cell Tech'olo!"*ioit"
I( Tech'olo!" ioit" a'%Cell *ioit" ae &ame
#AN2
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1oad +alance policy feature $ 1%&
2hen the usage of cell resource exceeds the +asic congestion triggering threshold* the cell enters the +asic congestion
state" In this case* 1oad &eshuffling ,1%& is re!uired to reduce the cell load and increase the access success rate"
The &'C adopts the following +ehaviors until the congestion +e removed:
– !nter-frequency load handover – "# rate reduction – C$%&$ inter-'A( handover – A)' rate reduction – *o$ 'enegotiation for
+ncontrollable 'eal-(ime $ervices – code reshuffling
-e#ource
.L/L C*annel
L- "ction#
nter
reuencyLoa$
'an$over
%-ate
-e$ucti
on
nter-"&'an$overin
CSomain
nter-"&'an$overin
PSomain
"--ate
-e$uction
oS-enegotiat
ionor
.ncontrolla!le
-eal&ime
Service#
Co$e-e#*uing
Power
UL DCH √ √ √ √ √ √
HSUPA √ √
DLDCH √ √ √ √ √* √HSDPA √ √DC-HSDPA √ √
Iub
UL DCH √ √ √
HSUPA √
DL DCH √ √ √
HSDPA √
Code – –
DL DCH √ √ √
HSDPA
CreditUL
DCH √ √ √ √HSUPA √ √
DL DCH √ √ √ √
HSDPA
1%& actions intended or $ierent
re#ource#
Remarks:
! the do"nlink #o"er$based admission
uses the %&U algorithm, the basic
congestion can also be caused by the%&U. n this situation, '(R actions do not
in)ol)e *MR rate reduction or MM
#o"er reduction, as indicated by the
symbol / in the table.
LD# i' co''ecte%mo%e
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34 &estriction, &efer to 56 .7"(55
– +# can only measure inter-frequency only for both
idle mode and connected mode in
– +# can only measure inter-frequency frequency
in $)
Moe (e/ue'c" 01 Ma'" (e/ue'c" wa& i'to%uce% i'
the 'etwo 01 ut thee UE e&tictio'& acco%i'! to3G
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Strategy - referred Camping
("Idle 3sers camp on 8( carrier
."Through setting S6* &99 directly esta+lish on 8(
5"Through setting S6* services esta+lish on 8. preferentially
;"#llow intra-fre!uency handover +ased on coverage for all carriers
7"Configure +lind handover neigh+oring cell +etween 8(
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Strategy - &andom Camping
("Idle 3ser randomly camp on 8( or 8. carrier
."&99 directly esta+lish on each carrier that the user camp on
5"S# services %&% +ased on S# user num+er +alanced
;"#llow intra-fre!uency handover +ased on coverage for all carriers
7"Configure +lind handover neigh+oring cell +etween 8(
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#e&ouce& o' %i:ee't caie& ma"'ot e u&e% e/uall"
Due to HSA caie;& hi!h loa% a&well a& the D#D, the HSA &etu*&ucce&& atio ma" e %eteioate%
Strategy - ros vs Cons
Cons
AM# a'% HSA &e6ice& ae o' the&ame caie&, the AM#
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S%# Strategy 4valuation$ ow to use tool
• 'etwork audit tool >mstar Start 3MTS'etwork#udit
Choose items as +elow to analye network strategy and corresponding
DIs• &efer to the following document to see how to use 3MTS'etwork#udit :
- 《 3MTS 'etwork 4valuation Tool 3ser 6uide》 -
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4valuation$ >MST#& &esult to analysis
• #ccording to the 'odeB num+er*
provide Top() Strategy and as well
as itEs pros and cons
• rovide DI for each carrier
• rovide each 'odeBEs strategy
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Case ( $ Strategy analysis using tool example,(
•
Conclusion:• 12.3 4ode" deploy 'andom Camping $trategy
• 5.63 4ode" deploy &referred Camping $trategy
• 2hy are there so many different strategyF #re they rightF
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Case ( $ Strategy analysis using tool example,.
• Remark: all the abo)e s are calculated by each cell
• Conclusion:
•
78%7%7%72’s traffic are almost equal and this is reasonable for'andom Camping $trategy
• 75’s deployed in suburb and it’s traffic is lower than other carrier
• 2hy are there so many different strategyF #re they rightF
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Case . $ Strategy #dGust 4xample
(" In order to improve coverage and signal !uality ,voice !uality * operator x
adGust itEs network strategy from random camping to preferred camping
." #s expected its drive signal !uality improves ("?H ,4c'o0-(.dB* #M& call
drop rate reduces )")7H +ut S B setup success ratio deteriorates )";=H
and S %1 throughput reduces ?H
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HSA5#44
HSA5#44 HSA5#44 HSA5#44
HSA5#44HSA5#44
Mo+ility olicy
Allow intra-frequency handover based on coverage for all
carriers9A +!4('A7'#*4C#::;
Configure one way handover based on coverage from 72 to
7%7 and from 7 to 7 9A +!4(#'7'#*4C#::;
Configure blind handover neighboring cell between 78
78,7--=7> 78, 7--=72 9A +!4(#'7'#*4C#:: ?
"lind/@7lag('+#;
Configure $) as neighboring cell for all cells, only configure
78 and 7 as neighboring cell for $).
HSA5#44
HSA5#44
)
)2
)3
)@
HSA5#44
SHO
HHO
+li'% HO
&e!uirement: refer System Capacity
&ecommend Strategy: &andom Camping
Case 5 $ Strategy Configuration 4xample
Camping Policy
Camp on F1 and F2 randomly
#ccess and 1oad Balance olicy
All carriers support /$&A and '11
4on / service are directly established in the cell
where the +# camp on
/ service are established on 78%7%7%72 through
load balance
:' policy set as default
'SP"(
U&e )3 a'% )@ a& DC %ual caie&
Dual caie Gou*
4 : )on *omogeneou#carrier
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Case ; $ 39)) and 7 Carriers Strategy,(
,900
.900
,1800
.2100 2
.2100 4
.2100 1 .2100 1 .2100 1
.2100 2 .2100 2
.900
&e!uirement: (" 39)) a+sor+ weak coverage traffic ." refer system capacity
.900
,900
,1800
,900
,1800
.2100 3
DLB3B
DLB3
DL
DL3
DL33
Suggestion: &andom Camping Strategy and dedicated 39)) strategy
'etwork Coverage:
8. 78%7%1BB full coverage. +1BB,7,72 hotspot coverage
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Case ; $ 39)) and 7 Carriers Strategy,.
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G UE& will cam* o' U2 ))2, G4 a'% G i' i%le mo%e 7i.e. Acce&& La"e&8.
G U4 &et a& Jlimite% acce&& la"eK UE& ca' e&elect to U4 whe' co6ea!e o( U2
))2 i& *oo. I%le UE& o' U4 will e&elect to ))2 whe' withi' U2 co6ea!e aea.
G U4 la"e will e co'&i%ee% a& the co6ea!e la"e (o oth CS a'% S o'l" o'e wa"
(o UE to !o to thi& la"e 7(om all U2 la"e&8 %ui'! Co''ecte% Mo%e i& %ue to
co6ea!e 7i.e. I'te-)e/ue'c" HO8.
G Co6ea!e-a&e% I'te-#AT (om U2 la"e& to G4 i& (o CS &e6ice& o'l".
G Call& e'% o' U2 )3@ will e (oce% to e-&elect to U2 ))2, U4 o G4
imme%iatel".
G )3 a'% )@ will e the No'-Acce&& a'% HS-*e(ee% la"e& UE& will o'l" *e(om HSA
#A+ D#D (om ) to co-&ecto )23@ cell& a'% (om )2 to co-&ecto )3@ cell&.
G Comi'e% 3G &e6ice& will acce&& at the cue't 3G cell, whee the &t &e6ice i& ei'!
&e6e%.
Case ; $ 39)) and 7 Carriers Strategy,5
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G LD# ha**e'&
8 etwee' all U2 la"e& 7i-%iectio'al li'% I'te-)e/ue'c" HO8
28 (om 3G to G4 a'% co-&ecto G (o CS &e6ice& o'l" 7I'te-#AT - o'l" a& @th
actio' (o DL LD#8.
G; Mea&ueme't-+a&e% LD# al!oithm will e e'ale% (om U4 to U2 )2
7(eatue ca' o'l" &u**ot 2 ta!et (e/ue'cie& acco%i'! to 3G8.
G4 G La"e $
G #e-&electio'& to the G la"e i& o'l" *o&&ile 6ia the G4 la"e.
G U'i-%iectio'al ta?c ha'%o6e& ae *o&&ile (om G4 to G.
G UE& o' G ca' mo6e to G4 i' co''ecte% mo%e %ue to co6ea!e.
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.2100 1
Case ; $ 39)) and 7 Carriers Strategy,;IDLE MODE CONNECTED MODE
.2100 4
.2100 1
.2100 2
,900
,1800
-e#election ;!i$irectional<
-e#election ;uni$irectional<
.2100 2
,900
,1800
.2100 1
.2100 3
"cce##
Layer
"cce##Layer
Capacity/)
on "cce##Layer
"cce##Layer
.2100 3
.2100 1
.2100 2
Coverage
!a#e$ ;uni$irectional<
&ra=c !a#e$ ;uni$irectional<
'SP" -"% - ;co#ector> !i an$ uni$irectional<
%lin$ ' L- ;co#ector> !i an$ uni$irectional<
CS nter-"&an$ L- ;to,900<
.2100 1
.2100 2
.2100 4
.900 .900 .900 .900
Coverage!a#e$ CS ? PS '/ CS S' ;uni$irectional<
ea#urement !a#e$ L-
Capacity/)on "cce##Layer
.2100 1
CS L- ;to,900<
7or :' , possibilities ?-"lind /@ or-)easurement based /@
Loa% ala'ce la"e
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Parameter U2100 F1 U2100 F2 U2100 F3 U2100 F4 U900
Cell Reselection
Qqualmin -18 dB -18 dB -18 dB -18 dB -18 dB
Qrle!min -"8#-11"dBm$ -"8#-11"dBm$ -"8#-11"dBm$ -"8#-11"dBm$ -"8#-11"dBm$
Q%&'t( 1 #(dB$ 1 #(dB$ 1 #(dB$ 1 #(dB$ 1 #(dB$
IdleSintra'ear)% "#1*dB$ "#1*dB$ "#1*dB$ "#1*dB$ "#1*dB$
IdleSinter'ear)% +#8dB$ +#8dB$ 1(, #..$ 1(, #..$ 1(, #..$
Inter-freq Neighors
SIB11 Ind/o U0**2( - /rue/o )o-'e)tor 23+ –
2al'e
/o U0**21 - /rue/o )o-'e)tor 23+ -
2al'e
/o U0**21 - /rue/o 2( and )o-'e)tor 2+ -
2al'e
/o U0**2( - /rue/o 21 and )o-'e)tor 23
– 2al'e
/o 212( - /rue
IdleQo..'et( - inter #.orn)ell' wit% SIB11 /rue$
* dB –4 U(1** 2(3 dB -4 U0**
* dB –4 U(1** 213 dB -4 U0**
-"* dB -4 U(1** 213 dB –4 U0**
-"* dB -4 U(1** 2(3 dB –4 U0** -3 dB -4 U(1** 21(
Blind %ando!er .la5 #.orLD6 and D6D$
nl& /rue .or )o-'e)torU(1** )ell'
nl& /rue .or )o-'e)torU(1** )ell'
nl& /rue .or )o-'e)torU(1** )ell'
nl& /rue .or )o-'e)torU(1** )ell'
7one
HCP6I U0** - ()o-'e)tor 2(3+ - *U0** - (
)o-'e)tor 213+ - *U0** and ot%er 21 - (
)o-'e)tor 21(+ - *U0** and ot%er 2( - ()o-'e)tor 21(3 – * 212( - (
Case ; $ 39)) and 7 Carriers Strategy,7
E=em*le $3G cell with EcNo 0 -4 et #SC 0 -%+Sual @ CPC'AC/)o B ualinS/ual 0 -4 7-8 0 4 1 $intrasearch 5
!f $qual = $intrasearch, the +# need not start the intra-frequencymeasurement.
!f $qual H $intrasearch, the +# need to start the intra-frequency measurement.
7I%lemo%e8
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Parameter U2100 F1 U2100 F2 U2100 F3 U2100 F4 U900
Inter-freq !an"o#er $onl% for %o&r reference' (ls) refer to the "efa< #al&e accor"ing each #ersion
CS (D -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm
CS (2 -1+dB-1*8dBm -1+dB-1*8dBm -1+dB-1*8dBm -1+dB-1*8dBm -1+dB-1*8dBm
H (D -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm
H (2 -1+dB-1*,dBm -1+dB-1*,dBm -1+dB-1*,dBm -1+dB-1*,dBm -1+dB-1*,dBm
Inter-R+, !an"o#er $onl% for %o&r reference' (ls) refer to the "efa< #al&e accor"ing each #ersion
CS (D -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm -19dB-11*dBm
CS (2 -1+dB-1*8dBm -1+dB-1*8dBm -1+dB-1*8dBm -1+dB-1*8dBm -1+dB-1*8dBm
H (D -(+dB-11"dBm -(+dB-11"dBm -(+dB-11"dBm -(+dB-11"dBm -(+dB-11"dBm
H (2 -(1dB-11(dBm -(1dB-11(dBm -(1dB-11(dBm -(1dB-11(dBm -(1dB-11(dBm
Inter-2requen)& and Inter-6A/ Coei't Swit)% SI:I7/;626;Q6A/ SI:I7/;626;Q6A/ SI:I7/;626;Q6A/ SI:I7/;626;Q6A/ I7/;626;Q
Coei't:ea'/%dC%oi)eC;
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ea#urement !a#e$ L- or .900 cell: &argetre&*$-#cp: 92 $%m>&argetre&*$c)0: 12 $%
Parameter U2100 F1 U2100 F2 U2100 F3 U2100 F4 U900
R
Ser!i)e Steerin5 22 22 22 22 22
LdbD6DSwit)%DCH 22 22 22 22 22
LdbD6DSwit)%HSDPA 7 7 22 22 22
LdbD6D)%oi)e U'er7umber U'er7umber U'er7umber U'er7umber U'er7umber
! &ser alance Relate"
LdbD6DLoad6emain/%dHSDPA 1**#de.ault$ 1**#de.ault$ 1**#de.ault$ 1**#de.ault$ 1**#de.ault$
:aH'd>aU'er7um 9+#de.ault$ 9+#de.ault$ 9+#de.ault$ 9+#de.ault$ 9+#de.ault$
LdbD6D..'etHSDPA 1 -4 /ar5et blind H )ell will be )on'idered a' a D6D )andidate w%en HS-DSCH load o. 'our)e )ell i' 5reater t%an t%eload o. t%e tar5et )ell b& 1? or more@
Case ; $ 39)) and 7 Carriers Strategy,?
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#ppendixeature)um!er eature )ame
62D-*(*11* :ulti 2requen)& Band 7etworin5
62D-*(*19* ;n%an)ed :ultiband :ana5ement
62D-*(*+***1 Intra S&'tem Dire)t 6etr&
62D-*(*+***( Inter S&'tem Dire)t 6etr&62D-*(*+***3 Inter S&'tem 6edire)t
62D-*(*+***+ /ra..i) Steerin5 and Load S%arin5 Durin5 6AB Setu>
62D-*(*3*( Inter 2requen)& Hard Hando!er Ba'ed on Co!era5e
62D-*(*1*3 Inter 2requen)& Load Balan)e
62D-*(1(** HCS #Hierar)%i)al Cell Stru)ture$
62D-*(*1*" Potential U'er Control
62D-*(*+*( :ea'urement Ba'ed Dire)t 6etr&
62D-*(*19* ;n%an)ed :ultiband :ana5ementeature)um!er eature )ame62D-*(*+***1 Intra S&'tem Dire)t 6etr&62D-*(*+***( Inter S&'tem Dire)t 6etr&62D-*(*+***3 Inter S&'tem 6edire)t62D-*(*+***+ /ra..i) Steerin5 and Load S%arin5 Durin5 6AB Setu>62D-*(*3*( Inter 2requen)& Hard Hando!er Ba'ed on Co!era5e62D-*(*1*3 Inter 2requen)& Load Balan)e62D-*(1(** HCS #Hierar)%i)al Cell Stru)ture$
62D-*(*1*" Potential U'er Control62D-*(*+***1 Intra S&'tem Dire)t 6etr&62D-*(*+***( Inter S&'tem Dire)t 6etr&62D-*(*+***3 Inter S&'tem 6edire)t62D-*(*+*( :ea'urement Ba'ed Dire)t 6etr&eature )um!er eature )ame62D-*(*3*3 Inter-6A/ Hando!er Ba'ed on Co!era5e62D-*(*3*9 Inter-6A/ Hando!er Ba'ed on Load62D-*(*3*" Inter-6A/ Hando!er Ba'ed on Ser!i)e62D-*(*+*1 Inter-6A/ 6edire)tion Ba'ed on Di'tan)e
• 2G3G i'te-o*eatio'
• Multi-caie ele6a't
(eatue&
• Multi-(e/ue'c" ele6a't
(eatue&
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