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8/17/2019 Huawei Multi Carrier

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HUAWEI TECHNOLOGIES CO., LTD.

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Huawei Confidential

Security Level:

Multi-Carrier Strategy Training


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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'




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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Inter-freq !an"o#er $onl% for %o&r reference' (ls) refer to the "efa&lt #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&lt #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 $%


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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