3a_lte performance measurements-v1.0-sh.ppt

7/25/2019 3a_lte performance measurements-v1.0-sh.ppt

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1 © Nokia Siemens Networks Presentation / Author / Date

For internal use

LTE Performance Measurements

• Rafael Sanchez

• System Performance NaM



2 © Nokia Siemens Networks Confidential

Contents

• Measurement locations

Dallas !"" #$and 1!%

Dallas A&S 'and #$and (%

)s*oo 2+"" #$and !%

Asia 2+"" #$and !%

• Measurement cases Peak and A,era-e .hrou-h*uts

Sin-le ) throu-h*ut and 0atenc

0ink Ada*tation

Cell Ca*acit with Multi)s

Scheduler and 0A interactions M3M4 Ada*tation

Mo'ilit Performance

5ando,er Performance




C o m m e r c i a l H W

C o m m e r c i a l H W M a r 0 9 B a s e l i n e S W

M a r 0 9 B a s e l i n e S W

C o m m e r c i a l H W

C o m m e r c i a l H W M a r 0 9 B a s e l i n e S W

M a r 0 9 B a s e l i n e S W

#*icture made *u'lic in midDec 2""7%

Test e!ices 8 69PP :el; March 2""7 $0 com*liant 0.) S$don-les

Fle<i NS #MM)%Fle<i NS #MM)%

Fle<i N9 #SA)9&%Fle<i N9 #SA)9&%

LTE Trial Setu"



( © Nokia Siemens Networks Confidential

Downlink throu-h*ut

"

2"

("

+"

;"

1""

12"

1("

1+"

1;"

2""

1 " = > ;

= 1 ( = ( 1 !

1 " = > ;

= 1 + = " 1

!

1 " = > ;

= 1 ! = + 1

!

1 " = > ;

= 1 7 = 2 1

!

1 " = > ;

= 2 " = ; 1

!

1 " = > ;

= 2 2 =

( 1 !

1 " = > ;

= 2 ( = " 1

!

1 " = > ;

= 2 > = + 1

!

1 " = > ;

= 2 ! = 2 1

!

1 " = > ;

= 2 ; = ; 1

!

1 " = > ;

= 6 " =

( 1 !

1 " = > ;

= 6 2 = " 1

!

1 " = > ;

= 6 6 = + 1

!

1 " = > ;

= 6 > = 2 1

!

1 " = > ;

= 6 + = ; 1

!

1 " = > ;

= 6 ; =

( 1 !

1 " = > ;

= ( " = " 1

!

1 " = > ;

= ( 1 = + 1

!

1 " = > ;

= ( 6 = 2 1

!

1 " = > ;

= ( ( = ; 1

!

1 " = > ;

= ( + =

( 1 !

1 " = > ;

= ( ; = " 1

!

1 " = > ;

= ( 7 = + 1

!

1 " = > ;

= > 1 = 2 1

!

1 " = > ;

= > 2 = ; 1

!

1 " = > ;

= > ( = ( 1 !

1 " = > ;

= > + = " 1

!

1 " = > ;

= > ! = + 1

!

? M ' * s @

Pea# Rate Sta$le %&' M$"s (ith )0 MHz LTE

1(; M'*s*+PP L% Pea# Throu,h"ut



> © Nokia Siemens Networks Confidential

Summary of LTE -iel Measurements (ith %0 MHz

• TCP traffic in D0 0B 0oadedand nloaded in Stationar

• NearB MidB Far corres*ond to5i-hB MedB 0owB S3N: conditions

• A,era-e latenc of 22 ms

>"M'*s 0imited ' Cate-or 2 De,ice

Near

Me

-ar



+ © Nokia Siemens Networks Confidential

Summary of LTE -iel Measurements (ith %0 MHz

• D0 0 TCP Mo'ilit .hrou-h*ut *erformance measured in dri,e route

with and without 0oad• A,era-e A**lication 0aer .CP D0 ./Put was 27>M'*s and 0 was 1(M'*s

• 4'ser,ed also an e<*ected MCS ada*tation due to chan-in- :F Conditions

.L MCS .istri$ution /L MCS .istri$ution

MCS Eariation

in Dri,e :oute

MCS Eariation

in Dri,e :oute

+(AMPSG PSG 1+AM

1+AM


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%0 MHz Throu,h"uts !s Raio Conitions

• 2+95H )s*oo .est Network

• Static location in the Field= Cate-or 6 de,ice• Downlink 40 M3M4 ada*tation

• *link 40 Power Control

• .CP traffic

Downlink *link


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0

5

10

15

20

25

LTE round trip time

ms

)<*ected 0atenc

Latency .istri$ution

Core

BTS

UE

Uplink scheduling grant

Uplink scheduling request

Retransmissions

Buering time

Transmission time

Measured 0atenc

A,era-e 0atenc 22ms in line with e<*ected

,alue


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For internal use

Lin# a"tation


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Lin# a"tation

•0ink ada*tation

Selection of modulation and codin- schemesB transmit *ower le,el andthe num'er of s*atiall multi*le<ed laers as a function of the*re,ailin- radio conditions #e-B C3%

4uter loo* link ada*tation #C3 measurement normaliHation%

4uter loo*0A

5A:mana-er

3nner loo*0A

PacketScheduler

$uffer

transmission'uilder

C3mana-er

01 Ack/Nack

C3

4ffset5A:info

0AreIuests/decisions

Schedulin- decision

01

06

02

.ransmitted si-nal

.efault scheuler is

Pro"ortional -air in

time an fre1uency

Controls the first

transmission

BLER tar,et2

Hel"s

com"ensate for

C34 errors2

C34 for .L RRM5

Sounin, an CS4

mana,er for /L

RRM2

synchronous aa"ti!e HR3 (ith

4ncremental Reunancy


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Lin# a"tation 6 Mo$ility 7S4NR !s Throu,h"ut8

Presentation / Author / Date


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.o(nlin# Throu,h"ut s Raio Conitions


• $etween Point A and Point $B the :S:P and :S: ,alues dro*B S3N: followsB which results in lower

re*orted C3 ,alues ' ) and hence lower 01 .hrou-h*ut

• .hrou-h*ut follows the S3N:B C3 cur,es as e<*ected .hrou-h*ut dro**ed as the S3N: measured dro*s

and it tends to increase as the measured S3N: increases

• $etween Point A and Point $B :ank 3ndicators and C3 ,alues dro*B with *ossi'ilit to tri--er M3M4 chan-e

Resource Bloc#s llocate in .L

.L S4NR

B

Ran#




MCS llocations s PRB llocation


•.his -ra*hB shows the MCS Allocated to the ) for the duration of incell dri,e with the P:$ allocated

• .he arrows inside the red 'o< indicatedB *eriod when MCS0e,el1 dro*s to Hero indicatin- that the ada*ti,e

M3M4 used was transmit di,ersit

B



1> © Nokia Siemens Networks Confidential

Cell Ca"acity (ith Multi /E Testin,

• Cell Ca*acit De*ends 5ea,il on ) distri'ution

Need to define reference setu*= 0imited num'er of )s a,aila'le

:esults cannot 'e directl com*ared with 69PP ca*acit fi-uresJ 1""K loadB 5omo-eneous distri'ution of users in 5e<a-onal Scenario

• Downlink Cell Ca*acit Measured with 6(

)s s*read o,er the cell

1 ) NearB 1 ) MidB 1 ) Far awa from the

Cell and 1 ) mo'ile

*+PP .L

*+PP /L



1+ © Nokia Siemens Networks Confidential

• Downlink = users close to $.S -ethi-her data rates due to hi-her

modulation and codin- schemes

• *link = *ower controlcom*ensates *ath loss and allusers -et similar data rates

LTE Multi:/E Cell Ca"acity

/E%

/E)/E*

/E&



1! © Nokia Siemens Networks Confidential

LTE Multi:/E Cell Ca"acity 7448

• Cell Ca*acit Measured in NSN Cluster with ( )s either

sittin- in different :F Conditions or ,aria'le :F• Downlink from a'out (12M'*s in No load to 61;M'*s in 0oaded

scenarios

• *link from a'out 17(M'*s in No load to 1!7M'*s in 0oaded scenarios

• For stationar tests )( is located in Mid *osition

.L Cell Ca"acity

*%2'M$"s

&%2)M$"s*92*M$"s

%'2*M$"s %;29M$"s%92&M$"s

/L Cell Ca"acity



1; © Nokia Siemens Networks Presentation / Author / Date

For internal use

Scheuler an L 4nteractions




Scheuler an L interactions• .hrou-h*ut of 1 M'*s maintained throu-hout ,aria'le SN: dri,e test

• :$s adLusted accordin-l with C3/MCS ada*tation



2" © Nokia Siemens Networks Confidential

La$ .L </E test= PRB llocation Bitma"

•P:$ Ma* shows P:$

allocation on each ..3• PF allocates P:$9rou*s 'ased on Su'$and C3 information

P R B i

1""ms sna*shot

Su'$and C3 for 1 ..3

0e-end




La$= /L < /E>s in %0MHz e?am"le PCC5 (P:$s

P:AC5=

+P:$se,er 1"ms

:andom5o**in- for

each )




For internal use

M4M@ a"tation an Mo$ility




@"en Loo" M4M@ S(itchin,

mimo@lC1iTh/

.ime

C3

:3

mimo@lC1iTh.

mimo@lR4Th/

mimo@lR4Th.

C34 A Th/5 R4 Th/

Remain T?.i!

SMT?.i! T?.i!

C34 A Th/5 R4 A Th

S(itch to SM

C34 Th.5 R4 A Th.

S(itch to T? .i!

C34 A Th.5 R4 Th.

S(itch to T?.i!

T?.i! SM

C34 A Th/5 R4 A Th/

S(itch to SM

Switching from/to TxDiversity modeto/from SpatialMultiplexing modeaccording to CQI and

RI



2> © Nokia Siemens Networks Confidential

/E Pers"ecti!e=: Throu,h"ut an R- Conitions

S"atial

Multi"le?in,

Lo( S4NR

Me S4NR

Hi,h S4NR

S"atial

Multi"le?in,



2+ © Nokia Siemens Networks Confidential

eNB Pers"ecti!e: @L M4M@ S(itchin,

$uffer -ets em*tsometimes so not allP:$s allocated



2! © Nokia Siemens Networks Confidential

LTE )0 MHz .ri!e Testin, (ith L+ /E .o(nlin#

TCP:.o(nlin#=

2"1""M'*s

M4M@ SM M4M@ T?.i! M4M@ SM M4M@ T?.i!




For internal use

Hano!er Performance



6" © Nokia Siemens Networks Confidential

4nter eNB Hano!ers


L% !, F 92<%

M$"s

!, S4NR F%<29& B

RSRP !aryin, from:<0 to :%)0 Bm

L% !, F '2&;

M$"s

Re linesre"resent aneNB chan,e




Hano!er Summary

DP 1" M'*sused in testin-

Eer lowinterru*tion time

3nterru*tion .ime Measured at Control Plane



Contact information G o(nloa location

• 3f ou ha,e an IuestionsB *lease contact *resenter=

:osario Colaianni

rosariocolaianninsncom

*hone= 676277"11;1;

CM4 &S) &est South )uro*e

• Slides will 'e a,aila'le in 3MS/Sharenet

htt*s=//sharenetimsinsidenokiasiemensnetworkscom/4*en/(177!67"6

mailto:[email protected]


https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/419973903





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