RANOP_Part2_Assessment v1.2.ppt

8/21/2019 RANOP_Part2_Assessment v1.2.ppt

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Soc Classification level

Presentation / Author / Date1 © Nokia Siemens Networks

RANOP – Radio Network Optimization Assessment




" © Nokia Siemens Networks

Objectives

At te end of te capter" participants will #e a#le to

$ know wat is network assessment

$ know w% network assessment is needed

$ know ow to collect data for assessment

$ know wic data to collect from OSS

$ know wic tools can #e used for assessment




& © Nokia Siemens Networks

Contents of RANOP

$ 'ntroduction to optimization – (at is network optimization

– (at sould #e taken into account wen startin) NetworkOptimization*

$ Assessment Assessment

– Situation at te momentSituation at te moment$ +P's and ,easurements

– ,easurement ta#les - +P's

$ Solution findin)s .optimization and verification

– ,a0imum )ain in limited time – ottlenecks

$ 2eatures to #e consider – NSN recommended features to #e used in optimization




3 © Nokia Siemens Networks

Assessment – table of contents

$ Confi)uration Assessment

– 'ntroduction / dependenc% ta#le e0ample – Area assessment

– Network assessment

$ Parameter Assessment – Parameter values

– !efault and specific values

– Parameter cecks .default and specific parameters – Consistenc% cecks 4 delta values

– 2re5uencies .plannin) tool vs6 real network values

– Parameter discrepancies

– 2eature assessment

$ Performance Assessment

– encmarkin) +P's used – Performance !ata anal%sis

– ,ulti vendor +P'

– 2ield 7ests

– Alarms

$ 7ools to #e used





Assessment - Introduction

Project

Starts

INPUTS

Assessments Solutions

Priorizationor! ordersSolution"erification

Im#lementations

Are Criteria$s

%ulfilled

Project

&nds

'onitorin( )

*ata collection

Anal+sis Solutions

'ore detailed in#uts

,if necessar+ based

on assessment

.es

No

Project

re#ort

Performance

Problems

Assessment

Confi)uration assessment

Parameter assessment

Performance assessment




Presentation / Author / Date9 © Nokia Siemens Networks

Confi(uration Assessment




: © Nokia Siemens Networks

Confi(uration Assessment – Introduction

(% confi)uration assessment is needed*

$ 't supports optimization decisions

– 't )ives information wic features can #e implemented

'f tere are some limitations; dependenc% ta#le; tese sould #eknown

'f A,R pro<ect and lots of 7alk 2amil% 7Ss – 't )ives information; ow muc capacit% can #e increased

'f tere are some limitations6 Can same 7S ca#inet #e used ifadditional 7R= will #e added

Are 7R=s supportin) >!?>

Can @R #e used*

$ 't specif% tar)ets and inputs

– 't )ives information if special resources / knowled)e will #e needed




© Nokia Siemens Networks

Confi(uration Assessment –*e#endenc+ table e/am#le

0SS 0SC0TS

%le/i &*1&

0TS

UltraSite

0TS

'etroSite

Release 0SS23 S23 No dependenc% No dependenc% No dependenc%

0TS

Tal!%amil+

0TS

PrimeSite

0TS

InSite

3nd 1en

0TS

Release No dependenc% Not su##orted Not su##orted Not su##orted

S1SN 'CS 0SC NetAct

Release S?8 or later ,11 or later SC"i or CS&iPCB"

OSS361

*T' – *ual Transfer 'ode in 0SC




© Nokia Siemens Networks

Confi(uration Assessment –%eature to %eature *e#endenc+ table e/am#le

Some e0amples of feature to feature dependencies

$ !7,

– ?PRS;>!?> must #e implemented #efore !7, can #e used

– SC"i or SC&i / PCB"

$ @,C

– &?PP release 3 or earlier ,Ss are limited to com#ined !D/BD 7SD sumof 8

$ !2CA

– !2CA re5uires SS s%ncronization assumin) tat a Docation,easurement Bnit .D,B unit is installed in ever% 7S site wit !2CA6




1E © Nokia Siemens Networks

Confi(uration Assessment – Area assessment

$ Situation in )eneral

$ Area size$ Antenna t%pes F

$ Capacit% situation in )eneral$ G of sites

$ G of cells; se)mentsF

$ Network element t%pes and softwareH$ 7S / SC t%pes 4 S(s

$ PCB t%pes

$ Iolume of network element and connectivit% usa)e of network

elements$ G of SCs

$ Avera)e !AP size/C2; SS: link sizes etcF

$ 7e followin) information sould #e collected related toterminals used in te networkH

$ Ratio of A,R capa#le terminals$ Ratio of R:; R; R; R3 capa#le terminals F





Confi(uration Assessment – Net4or! &lementAssessment

$ Sites / cells .Site data#ase$ Site; cell names wit '!s

$ 7S confi)urations

$ Antenna t%pes; azimuts; ei)ts; feeder len)ts

$ Docation; coordinates and addresses

$ ,SC; SC; DAC; RAC parameters; 7= powers

$ >1/71s

$ 7S @( Assessments$ (ic @( versions are in use in certain site

$ SC$ SC name and t%pe

$ SC Btilization and ma0 capacit%




Presentation / Author / Date1" © Nokia Siemens Networks

Parameter assessment




1& © Nokia Siemens Networks

Parameter assessment – Parameter values

?eneric process of parameter collection

U#load 0SC

Actual

Confi(uration

Ta!e 0SC

5'6

*um#

*efine

Audit

Tem#late

Run

Audit

Scri#t

1enerate

5'6

Out#ut





Parameter assessment – Parameter values

2ollowin) parameters sould #e collected to )et full

parameter assessment





*efault Parameter "alues7$ Almost all parameters are set to

default values$ !efault values are defined #ased

on studies

S#ecific Parameter "alues7

$ Special solution for certain area

$ !efault values are not workin) well

$ Can)es mi)t #e 5uite dan)erous as

te% ma% ave a critical impact on te

network6

$ 't is not recommended to fi0 sideJ

effects of te special values #% settin)

special values

Parameter assessment – *efault and s#ecific#arameter values





Parameter assessment – default #arameter c8ec!

!efault parameter ceck

$ >0port Actual !efault Parameters from te OSS trou) a 0ml file; for e6)6

$ Bse alwa%s latest default values .#ased on latest studies

$ 'mport 0ml file into a !ata#ase usin) for e6)6 C, Plan >ditor6

$ Com#are Planned *efault Sets 4it8 Actual *efault Parameters in t8e net4or! 6

$ ,ark e0ceptions for eac default parameter

$ Sow differences

$ Select can)es to #e done

$ Create dat file or 0ml file for correction

Note9 't is ver% important to verif% if an% can)es to *efault Parameters as #een done #efore an% optimization; as tis ma% result in undesired andune0pected impacts on te network6




1: © Nokia Siemens Networks

Parameter assessment – S#ecific #arameter c8ec!

S#ecific

Parameter area

S#ecific

Parameter area

S#ecific

Parameter area

S#ecific

Parameter areaS#ecific

Parameter area

If lots of s#ecific #arameters in t8enet4or!: 8at !ind of #roblems mi(8te/ists;

<mm9 *o I reall+ 8andleall t8ese s#ecificrelations8i#s;





Parameter assessment – Consistenc+ c8ec!

OSS

C' *atabaseC' *atabase

> 0 p o r t

Parameter

file

'aster confi(uration

database

actual default

#lanned

default

actual s#ecific

NetAct Planner

Plannin(

database

Parameterfile

e0port

import

' m p o r t

Consistenc+

c8ec!

Parameterfile

' m p o r t > 0 p o r t

'a#info

O!C

Consistenc+

c8ec!

Consistenc+

c8ec!





Parameter assessment – Consistenc+ c8ec!

$ !elta values; plannin) tool values; network values .ne0t slide

– All values sould #e as planned

– 2or e0ample fre5uencies; S'Cs; nei)#ors F

$ !elta values; network values vs6 default/recommended values

– 'f not specific values; parameter values sould #e set as default value6

– SC; 7S; ?PRS; POC; @OC F

$ !iscrepancies

– Nei)#or parameters

$ Non s%mmetrical nei)#ors .slide

– 7S parameter vs6 ad<acent parameters




"E © Nokia Siemens Networks

Parameter assessment – %re=uencies - Plannin(Tool values vs: net4or! values

'f tere are some delta #etween network and planned values;conse5uences mi)t #e fatal6

Plannin) tool values Network values

>?@:">@118

?2@11E

B@"

2DD@

223@

>?@:">@118

?2@11E

B@"

2DD@

22@

Same c8annels ,22

EF bad interference992 TR5 s8ouldbe added




"1 © Nokia Siemens Networks

Cell A Cell B

Parameter assessment – discre#ancies

Non s+mmetrical adjacencies

2ind all non s%mmetrical ad<acencies H

$ cell is nei)#our of Cell A

$ cell A is not nei)#our of Cell




"" © Nokia Siemens Networks

SC id 7S id 7R= id 2R>K

f A

SC id 7S id NJDAC NJCell id NJCC@

fA

7R=

A!C>

NJNei)#our

Cell ACell 0

f A

f A

A##lies also to ot8er cell #arameters 99

Parameter assessment – discre#anciesN-0CC< in A*C& table a(ainst %R&G in TR5 table




"& © Nokia Siemens Networks

Parameter Assessment – 0SS %eature Assessment

7e followin) features must #e cecked and interworkin) issues must #e

empasized amon) features #elowH

– 'dle mode settin)s and !irected Retr%

– and R2 @oppin)

– ,ultiC2 and Common CC@

– Bm#rella

– 2R / @R / !R / A,R – @SCS!

– >0tended Cell

– 'ntelli)ent Bnderla% Overla%

– Priorit% #ased KoS

– N,O1

– NCCR – CS1J3

– NACC

– !2CA

– !7,




Presentation / Author / Date"3 © Nokia Siemens Networks

Performance Assessment





Performance AssessmentIntroduction

$ (% Performance assessment is needed*(% Performance assessment is needed*

$ Performance assessment is needed to )et clear picturePerformance assessment is needed to )et clear picturea#out network functionalit% and find te possi#ilities fora#out network functionalit% and find te possi#ilities forincreasin) te performance6increasin) te performance6

$Callen)es

$ ,issin) data

– 'f some ourl% data is missin) – difficult to find out witout ourl%

anal%sis .@intH Sarp drop in traffic – All ta#les are not activated

– All ta#les can not #e found from OSS





Performance AssessmentPerformance data anal+sis

Performance data measurements and anal%sis areusuall% separated to

$ OSS Performance data

$ Statistics

$ encmarkin) +P's

$ ,ulti Iendor +P'

$ Alarms

$ Customer complaints

$ !rive 7est Anal%sis

$ Plannin) tools

$ >0ecutive Summar% 4 Overview




": © Nokia Siemens Networks

Performance Assessment Statistics

Stron) points -$ Allows centralized data collection

$ A cost efficient wa% to monitor network 5ualit%

$ ProJActive

$ Selective performance monitorin) .e6)6 after new feature activation

$ Permanent information flow

$ Bseful to monitor trends

$ Docate pro#lems on a perJcell level

(eak points J

$ Needs statisticall% relevant traffic volume to provide relia#le results$ Dimited )eo)rapical location of pro#lems is possi#le

$ Can #e difficult to understand te meanin) of te counters





Performance Assessment0enc8mar!in( HPIs used

$ encmarkin) +P's

– 's recommended for reportin)

– Release specific

$ Customer +P's

– Almost all operators ave operator specific +P's6

– 'mportant +P's #ecause optimization is done for customer

$ Dimitations

– S( Release limitation

7ere mi)t #e errors in results if wron) +P's will #e used

– 2eature limitations 7ere mi)t #e errors in results if wron) +P's will #e used

2or e0ample if @R is not used





Performance Assessment0enc8mar!in( HPIs - CS

OSS counter and CS +P' anal%sis )ives e0act picture a#out network

performance6 7e anal%sis of CS +P's can #e #ased on te followin) listH

$ Accessibilit+

– S!CC@ access +P's

– 7C@; S!CC@ lockin) +P's

– @O failure due to #lockin)$ Retainabilit+

– 7C@; S!CC@ drop +P's

– 7otal @O failure; @O drops

$ Gualit+

– BD/!D Kualit% +P's$ Traffic s8are

– 7C@; S!CC@ 7raffic sum

– A,R traffic sare

KPIs

S2 &*1&@ 1PRS@ and1S' HPIs can be seen

8ere




&E © Nokia Siemens Networks

Performance Assessment0enc8mar!in( HPIs - PS

OSS counter and PS +P' anal%sis )ives e0act picture a#out network performance6 7e anal%sisof PS +P's can #e #ased on te followin) listH

$ Net4or! Usa(e

– BD/!D PS 7raffic

– BD /!D Pa%loads

$ P*TC< Con(estion

– !D ard/soft #lockin)

$ Abis)PCU Con(estion – 'nade5uate >!AP resources in !D

– !D ,CS selection limited #% PCB

$ P*TC< Gualit+

– BD/!D .>?PRS RDC trou)put

– 72 Success ratio

$ 'obilit+

– !ownlink flus per minute

$ Availabilit+

– !ata service availa#ilit% ratio

$ User &/#erience

– DDC 7rou)put




&1 © Nokia Siemens Networks

Performance Assessment0enc8mar!in( HPIs - PS

$ GoS

– 72 esta#lisment/success ratio

$ Connectivit+ ca#acit+

– !D ,CS selection +P's

$ 'obilit+

– !D 2lus

$ &3& data rate

– DDC 7rou)put

– Iolume wei)ted DDC trou)put




&" © Nokia Siemens Networks

Performance Assessment'ulti "endor HPI

,ulti Iendor +P' comparison is like comparin)apples and kiwis

Stron) points -

$ Performance can #e compared #% usin) statistics

(eak points J

$ Counter tri))er points mi)t #e different

$ Calculation metods mi)t #e different

– Are we calculatin) fails or .all attempts J successfulattempts




&& © Nokia Siemens Networks

Performance AssessmentAlarms

'n assessment report all main active alarms can #e mentionedH

Note9 Ceck also if an% #locked / filtered alarms

⇒'f tere are lots of active alarms; collected data is not valid

$ Performance data is not relia#le

$ Optimization tar)ets are #ased on wron) inputs

⇒ Optimization can #e started wen .most of critical activealarms ave #een solved

* Low Priority

** Med Priority

*** High Priority





Performance Assessment Customer Com#laints

Stron) points -$ ?ood coJoperation #etween network optimization and customer service department is

necessar%

$ @elps to find not known pro#lems

$ @elps to confirm known pro#lems

$ ,i)t pinpoint location of pro#lem

$ Reports indoor covera)e oles

$ ,a% tri))er fast decision from mana)ement in case eav% users are involved

$ Pro#lems wit specific mo#iles

$ Pro#lems of mo#ile confi)uration

(eak points J$ Reactin) to customer complaints is reactin) too late

$ Not efficient for optimizin) a wole network

$ !ifficult to distin)uis #etween mss and #ss pro#lems

>6)6H >rrors in te num#erin) plan can onl% #e detected from Customer ComplaintsL





Performance Assessment %ield Tests

Anoter wa% of measurin) te tar)et network performance

Necessar% in different steps of optimisation

!rive 7est process consists onH16!oin) te test and collectin) te lo)s

"6PostJprocessin) tese lo)s

&6 Anal%sis of !rive 7est

1PS

Outdoor antenna

Indoor antenna

*rive Test Soft4are

Pre-defined route

Net4or! 2





Performance Assessment %ield TestsStron) points$ @elps to ad<ust propa)ation models

$ 7rou#lesootin)

$ !etects pro#lems tat can #e masked #% statistics

$ ?rapical reports on maps tat allow to easil% identif% Mot areas

$ ,onitorin) and validation of new functionalities or can)es done in te network

$ 'dentif% covera)e pro#lems; meanin) #ot covera)e oles and cells coverin) less or more tan

wanted6 Bsed in antenna tiltin) optimisation6$ 2indin) interference .difficult to measure and #ad 5ualit%6

$ !etectin) ad<acenc% pro#lemsH

– ,issin) nei)#ours

– Bnnecessar% or unwanted nei)#ours

– 'ncorrectl% defined ad<acencies6

$ 2indin) ardware pro#lemsH

– Crossed sectors6

– ,i0ed antenna lines6

– 2ault% units .7R=s; Bs; etc6

– 'm#alance pro#lems .e6)6; due to RO> in ca#les or <umpers6

-




&: © Nokia Siemens Networks

Performance Assessment %ield Tests

(eak points J$ Ier% resource and time consumin); makin) it e0pensive to monitor wide

areas and sometimes restricts !7s to specific areas

$ KoS monitorin) from movin) su#scri#er point of view6 ?ives a feelin) ofcustomer view; altou) slow movin) ,S; indoor ,S; i) floor ,S are not

taken into consideration$ Supplies in most cases onl% downlink information

$ SnapJsot in time

$ Statistics can #e influenced #% te velocit% of te driver in )ood areas andin #ad areas6



Soc Classification level& © Nokia Siemens Networks

Performance Assessment %ield Tests e/am#les

$ CS

– Covera)e – Kualit% J 'nterference

– @O measurements

– CSSR wit sort call duration

– 7raffic andlin) measurements

$ PS – PS( accessi#ilit% anal%sis

$ ?PRS attac / P!P content activation / 72 esta#lisment

– 7rou)put anal%sis – Stationar%$ Avera)e trou)put .RDC/,AC and Application

$ ,CS distri#ution$ D>R ;C/' ratio

– 7rou)put anal%sis – ,o#ilit% .intra/inter PCB and RAB cellJreselection

$ DDC; RDC/,AC

$ Retransmission #ased on cell reJselection



Soc Classification level& © Nokia Siemens Networks

Performance Assessment O#timizer

Pro#lems cells #ased on interference matri0 from Optimizer



Soc Classification level3E © Nokia Siemens Networks

Performance Assessment&/ecutive Summar+ and Overvie4

'n performance assessment report followin) items sould #e

mentioned

$ >0ecutive summar%

– Stren)ts

– (eakness

$ Overview – All +P's wit values sould #e listed

– Network level 4 SC level

– ,ain causes for pro#lems sould #e mentioned



Tools to be used

>0ample of tools to #e used in assessment pase

$ Confi)uration data

– NetAct tools .Plan >ditor; C, Plan ,ana)er etc

– Plannin) tools .NetAct Planner; Asset; etc

$ Performance data

– Statistics .Reportin) Suite; ,etrica; Report uilder etc

– !rive test .Nemo Outdoor6 7>,S; Acti0 etc

$ Parameter assessment

– NetAct tools .Plan >ditor; Reportin) Suite etc

– Plannin) tools .NetAct Planner; Asset; etc

RANOP_Part2_Assessment v1.2.ppt

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