2 Lte Eran6.0 Anr Feature Issue 1.00

8/9/2019 2 Lte Eran6.0 Anr Feature Issue 1.00

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LTE eRAN6.0 ANR Feature




Objectives

Upon completion of this course !ou "ill be able to# $escribe ANR principle Outline the flo" of event ANR an% fast ANR Outline the &' auto(setup mechanism

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)ontents

1.ANR Overvie"

2. *ntra(RAT ANR +ana,ement

3. *nter(RAT ANR +ana,ement

4. &' -elf -etup

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*ntro%uce of ANR

ANR Automatic Nei,hbor Relation/ ANR is a self(optimiation function that belon, to -ON

*t automaticall! maintains the inte,rit! an% effectiveness of nei,hbor cell lists to increase han%over success rates an% improve net"or1 performance

ANR automaticall! %etects missin, nei,hborin, cells 2)* collisions an% abnormal nei,hborin, cell covera,e an% anal!es nei,hborrelations.

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Abnormal Neighbor Coverage Detection

PCI Conflict Detection

Missing Neighbor Detection

Optimized by ANR




ANR )lassification

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ANR

Intra-RA ANR Inter-RAANR

!vent

trigger ANR

"ast

ANR!vent

trigger ANR

"ast

ANR




Relevant -"itch

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Re3uire% UE )apabilit!

*n UE feature ,roup the follo"in, bits shoul% be set to 45

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Index ofindicator

Description

5 - Support long DRX cycle

17 -Periodical meaurement reporting !orS"# $ %#R- %#R related intra-!re&uency meaurementreporting e'ent

1( - %#R related inter-!re&uency meaurement

reporting e'ent

1) - %#R related inter-R%* meaurementreporting e'ent




Relevant )onceptions 7 N)L

N)L contains the information about all e8ternal cells of a specific cell. N)Ls are classifie% into intra(RAT N)Ls inter(R

AT N)Ls.

N)L inclu%es the E(UTRAN )ell 9lobal *%entifiers E)9*s/ 2)*sTA) eNo%e: *$ an% E(UTRA Absolute Ra%io Fre3uenc!

)hannel Numbers EARF)Ns/ of the nei,hborin, cells.

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Relevant )onceptions 7 NRT

NRTNei,hbor Relation Table/ contains the information abo

ut the nei,hbor relations bet"een the source cell an% its ta

r,et nei,hborcells. NRTs are classifie% into intra(RAT NRTs a

n% inter(RAT NRTs. Each cell has an intra(RAT NRT inter(RAT

NRTs.

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SN LCI TCI NoRemove

No HO

1 +,1 *,1 *rue *rue

2 +,1 *,2 /ale /ale

3 +,1 *,3 *rue *rue




Relevant )onceptions 7 :lac1list

;O blac1list# ;O blac1list contains information about nei,hbor relations that cannot be use% for a han%over or remov

e% automaticall! from the NRT b! ANR.

&' blac1list# &' blac1list contains information about the nei,hborin, eNo%e:s "ith "hich the local eNo%e: is not per

mitte% to set up &' interfaces.

RR) blac1list# RR) blac1list contains the nei,hborin, E(UTR

AN cells "hose information "ill not be measure% or report

e% to the eNo%e: b! UEs

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Relevant )onceptions 7 <hitelist

;O "hitelist# ;O "hitelist contains information about nei,hbor relations that can be use% for a han%over an% cannot

be remove% automaticall! from the NRT b! ANR.

&' "hitelist# "hitelist contains information about the nei,hborin, eNo%e:s "ith "hich the local eNo%e: has set up &'

interfaces. These &' interfaces cannot be remove% automat

icall!

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)ontents

1. ANR Overvie"2. *ntra(RAT ANR +ana,ement


4. &' -elf -etup

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)ontents

2. *ntra(RAT ANR +ana,ement

'.5 Event( Tri,,ere% ANR +easurement

'.' Fast ANR +easurement

'.= N)L > NRT +aintenance

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Event(Tri,,ere% ANR Overvie"

Event(tri,,ere% ANR use stan%ar% han%over report event to tri,,er ANR proce%ure

*mpact# )ause the a%%itional %ela! aroun% '00?=00ms for

ANR measurement %urin, han%over

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Event ANR Flo"

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E8ample of ANR Report

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ANR <ith UE ;istor! ;ua"ei 2rivate/

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)ontents

2. *ntra(RAT ANR +ana,ement'.5 Event( Tri,,ere% ANR +easurement


'.= N)L > NRT +aintenance

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Fast ANR +easurement

*n or%er to re%uces the impact of event(tri,,ere% UE measurements on han%over performance s!stem supports peri

o% measurement.

eNo%e: %irectl! select some UEs an% activate the measurement if R-R2 is stron,er than a pre%efine% threshol% then

UE report its 2)* to tri,,er ANR flo".

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Periodic meas#rement report

Activate meas#rement




*mpact of Fast ANR

For intra(fre3uenc! fast ANR# 2)* measurement > report phase# no impact on current servi

ce e)9* measurement > report phase# $urin, this time there is

no traffic for the UE impacts UE throu,hput

For inter(fre3uenc! fast ANR# 2)* measurement > report phase# UE performs 9A2 assiste%

measurement has impact on throu,hput e)9* measurement > report phase# -ome impact as intra(fre3

uenc! fast ANR

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;o" to Re%uce the *mpact@

2erio%ic UE measurements have a ne,ative impact on the uplin

1 throu,hput of the net"or1. Therefore intra(RAT fast ANR rest

ricts the number of concurrent UEs involve% in perio%ic measu

rements b! several mechanisms.

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$hen c#rrent %! n#mber involved in fast ANR achieve the threshold& eNode' stop

selecting ne( %! for fast ANR

$hen the specific %! meas#rement report

achieve the threshold& the %! stop fast

ANR report

$hen the total %e n#mber involved in fast

ANR achieve the threshold in the certain

period& the eNode' stop fast ANR f#nction




)onfi,uration for Fast ANR

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)ontents

2. *ntra(RAT ANR +ana,ement'.5 Event( Tri,,ere% ANR +easurement


'.= N) > NRT +aintenance

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Overvie" of N)L>NRT Auto +aintenance

After a ne" nei,hbor is %etecte% b! ANR eNo%e: "ill a%% it to NRT an% N)L imme%iatel!.

*n or%er to ensure the vali%it! of N)L an% NRT eNo%e: cou

l% perio%ic evaluates nei,hbor performance an% automatic

%elete some non(reliable NRT an% N)L.

2er3uisite# Relevant ANR %elete s"itch shoul% be ON

ANR Noremove fla, is false NRTBN)L control mo%e shoul% be automo%e

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NRT Evaluation > +aintenance

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Period eval#ation

Ad)#st the list of NR

Res#lt analysisRemove from NR

Remaining in NR




N)L Evaluation > +aintenance

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Period eval#ation

Ad)#st the list of NR

Res#lt analysisRemove from NC*

Remaining in NC*




Relevant )onfi,uration

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)ontents


3.*nter(RAT ANR +ana,ement

4. &' -elf -etup

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Event ANR

*nter(RAT event(tri,,ere% ANR support 9ERAN an% UTRANs!stem controlle% b! the 9eranEventAnr-"itch an% Utra

nEventAnr-"itch chec1 bo8es un%er the Anr-"itch para

meter

*nter(RAT ANR has similar proce%ure as intra(RAT ANR.

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Fast ANR

*t is controlle% b! the 9eranFastAnr-"itch UtranFastAnr

-"itch

The proce%ure is similar as intra(RAT fast ANR but the para

meters are separate%

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*nter(RAT Fast ANR )onfi,uration

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)ontents



4. &' -elf -etup

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&' -elf -etup

$epen%in, on "hether the -ctp2eer control(plane peer/

an% User2lane2eer user(plane peer/ +Os are manuall!

confi,ure% eNo%e:s support the follo"in, &' self(setup m

etho%s in t!pical scenarios# &' self(setup "ith -ctp2eer an% User2lane2eermanuall! co

nfi,ure% &' self(setup "ith -ctp2eer an% User2lane2eerautomaticall

! confi,ure%

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&' Auto )onfi,uration +o%e

eNo%e: supports the follo"in, t"o mo%e for &' automaticconfi,uration &' over +'000 &' over -5 interface

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&' Over -5 -elf(setup Flo"

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&' Over +'000 -elf(setup

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-ummar!

Event ANR flo" Fast ANR flo"

&' self setup flo"

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han+ yo#(((,h#a(ei,com



Copyright © 2013 Huawei Technologies Co., Ltd. All rights reserved.age!1

Appen%i8 5# Trainin, *cons

/oreword "0ecti'e ,ontent uetion Summary

Re!erence



Coor !sa"e #$ideines% *he !ollowing color are corporate color and upporting color . it

0oth uage o! color create an harmonie eect. *he 'alue o! the color hould not 0e changed. #o other color hould

0e ued. "nly the uggeted color can 0e ued. /or the uage o! theupporting color only 'ertical and hori6ontal hould 0e ued thu a0leto ree8 the harmony.

Coor pateet%

)olor Usa,e

,orporate ,olor

Supporting ,olor

R9:;153$<$< R9:;<$<$< R9:;51$51$51 R9:;153$153$153 R9:;2<42<4 R9:;255$255$255

R9:;255$2<4$1<2 R9:;255$2<4$153 R9:;2<4$255$153 R9:;2<4$2<4$255 R9:;153$2<4$255 R9:;153$2<4$2<4

R9:;153$1<2$1< R9:;255$153$< R9:;1<2$153$< R9:;<$1<2$153 R9:;<$153$2<4 R9:;<$153$153

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2 Lte Eran6.0 Anr Feature Issue 1.00