LTE UMTS GSM Network Optimization
-
Upload
avi-shetty -
Category
Documents
-
view
293 -
download
2
Transcript of LTE UMTS GSM Network Optimization
-
8/9/2019 LTE UMTS GSM Network Optimization
1/44
Batelco LTE IRAT Interworking Document
Batelco LTE IRAT InterworkingDocument
IRAT Interworking Optimization June 2013
1 !!"
-
8/9/2019 LTE UMTS GSM Network Optimization
2/44
Batelco LTE IRAT Interworking Document
2 !!"
-
8/9/2019 LTE UMTS GSM Network Optimization
3/44
Batelco LTE IRAT Interworking Document
Table of Contents
1 Introduction.......................................................................................5
2 Purpose.............................................................................................5
3 Benefits.............................................................................................5
4 Service Description..........................................................................6
5 !clusions........................................................................................."
6 #esponsibilit$ %atri!........................................................................&
" 'i() *evel Desi(n.............................................................................+
#$1 Intro%uction$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$2 Interworking De'ign (on'i%eration'$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$10#$3 Interworking De'ign )et*o%olog+$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$11#$! Interworking mo%e'$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$11#$, (ell Re'election - LTE to .(D)A/) I%le mo%e"$$$$$$$$$$$$$$$$$$$$$$$12
#$,$1 Tec*nolog+ rioritization 12#$,$2 IRAT )ea'urement' 12#$,$3 (ell Re'election 13
#$ (ell Re'election - .(D)A to LTE I%le )o%e"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$1,#$$1 Tec*nolog+ rioritization 1,#$$2 IRAT )ea'urement' 1#$$3 (ell Re'election 1#
#$# (ell Re'election - ) to LTE/.(D)A I%le )o%e"$$$$$$$$$$$$$$$$$$$$$$$14#$#$1 Tec*nolog+ rioritization 14#$#$2 IRAT )ea'urement' 14#$#$3 (ell Re'election 1&
#$4 (o5erage Triggere% .(D)A e''ion (ontinuit+$$$$$$$$$$$$$$$$$$$$$$$$$$$$$20#$4$1 Intro%uction 20#$4$2 Operation 21
#$& (o5erage Triggere% .(D)A IRAT 6an%o5er$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$23#$&$1 Intro%uction 23#$&$2 Operation 2!
#$10 (o5erage Triggere% ERA7 e''ion (ontinuit+$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$2##$10$1 Intro%uction 2#
#$10$2 Operation 24
& Test Case Develop,ent..................................................................31
+ -ield Tests.......................................................................................32
1 /0 *evel #eco,,endations.........................................................36
3 !!"
-
8/9/2019 LTE UMTS GSM Network Optimization
4/44
Batelco LTE IRAT Interworking Document
11 -uture trial reco,,endations.......................................................36
12 ppendi!.........................................................................................3"12$1 Brie8 %e'cription' 8or IRAT Relate% 9eature'$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$3#
12$1$1 .(D)A IRAT 6an%o5er: co5erage triggere% 3#
12$1$2 ERA7 e''ion (ontinuit+: (o5erage;Triggere% 3412$1$3 .(D)A e''ion (ontinuit+: (o5erage;Triggere% 3&
! !!"
-
8/9/2019 LTE UMTS GSM Network Optimization
5/44
Batelco LTE IRAT Interworking Document
1 Intro%uction
Batelco i' t*e 8ir't operator to launc* LTE 'er5ice' in Ba*rain$ T*e rollout i' ongoingwit* more t*an &0 'ite' integrate% out o8 t*e initial 100 8or t*e 8ir't p*a'e: w*ile
preparation' 8or 'econ% p*a'e o8 100 a%%itional 'ite' are un%erwa+$ It *a' ualit+ o8 'er5ice$
2 urpo'e
T*e purpo'e o8 t*i' %ocument i' to pro5i%e gui%eline' 8or t*e LTE IRAT Interworking
Optimization 8or Batelco network$ It pro5i%e' recommen%ation' 8or %eplo+ment
option': ke+ parameter': te't met*o%olog+ an% per8ormance metric'$
3 Bene8it'
A' 2/3 network' e5ol5e to !: a ke+ re>uirement 8or operator' i' to pro5i%e a
'eamle'' e=perience 8or t*eir cu'tomer'$
A' in t*e ca'e o8 Batelco: LTE *a' initiall+
-
8/9/2019 LTE UMTS GSM Network Optimization
6/44
High Level Design
Test Case
Development
Field Tests
NW Level
Recommendations
Batelco LTE IRAT Interworking Document
I. can al'o pro5i%e a mean' to mo't e88icientl+ le5erage t*e increa'e% capacit+ o8
LTE 8or *ig*er tra88ic area': an% alle5iate conge'tion on 2 an% 3 network'$
! er5ice De'criptionT*e LTE IRAT Interworking Optimization i' a part o8 t*e on;going Optimization
er5ice 8or Batelco 7etwork$ T*e LTE Interworking 'er5ice %raw' upon Eric''on?'
LTE tec*nical e=pert' to %eli5er a *ig*l+ 'pecialize% 'er5ice 8or t*e %eli5er+ o8 an
interworking 'olution t*at can
-
8/9/2019 LTE UMTS GSM Network Optimization
7/44
Batelco LTE IRAT Interworking Document
6ig* Le5el De'ign
During t*e *ig* le5el %e'ign p*a'e:
-
8/9/2019 LTE UMTS GSM Network Optimization
8/44
Batelco LTE IRAT Interworking Document
, E=clu'ion'
T*i' %ocument co5er' RA7 con'i%eration' 8or LTE Interworking onl+:
-
8/9/2019 LTE UMTS GSM Network Optimization
9/44
Batelco LTE IRAT Interworking Document
# 6ig* Le5el De'ign
#$1 Intro%uction
A well optimize% I. %e'ign will ena
-
8/9/2019 LTE UMTS GSM Network Optimization
10/44
Batelco LTE IRAT Interworking Document
Implementation o8 recommen% c*ange' to impro5e per8ormance e$g$
network;controlle% i%le mo%e cell re'election: a5aila
-
8/9/2019 LTE UMTS GSM Network Optimization
11/44
Batelco LTE IRAT Interworking Document
)inimize t*e 8re>uenc+ o8 inter;RAT *an%o5er an% impro5e t*e u'er perception o8
network 'ta
-
8/9/2019 LTE UMTS GSM Network Optimization
12/44
Batelco LTE IRAT Interworking Document
12 !!"
-
8/9/2019 LTE UMTS GSM Network Optimization
13/44
Batelco LTE IRAT Interworking Document
#$, (ell Re'election - LTE to .(D)A/) I%le mo%e"
(ell re'election 8rom LTE to .(D)A in i%le mo%e i' a Relation$cellRe'electionriorit+
Ftran9re>uenc+Relation$cellRe'electionriorit+
eran9re>roupRelation$cellRe'electionriorit+
LTE tec*nolog+ *a' Relation$cellRe'electionriorit+ i' 8i=e% a' #$
i5en t*at .(D)A compri'e' two carrier' on Batelco 7etwork: cell re'election
priorit+ i' kept a' , *ig*er" 8or t*e 8ir't carrier FAR9(7 1034" an% i' kept a' !
lower" 8or t*e 'econ% carrier FAR9(7 102"$ T*i' 'trateg+ i' place% 'ince t*e 8ir't
carrier o88er'
-
8/9/2019 LTE UMTS GSM Network Optimization
14/44
Batelco LTE IRAT Interworking Document
".5.2 I#T %easure,ents
.*en it come' to lower priorit+ 8re>uencie': t*e parameter snonintrasearch
%etermine' i8 t*e FE nee%' to mea'ure at all$ )ea'urement' are man%ator+ onl+
w*en r=le5 i' uire% RR le5el 8or
camping on t*e LTE cell$ (urrentl+ t*i' i' 'et to ;124%Bm$
LTE parameter '7onIntraearc* '*oul%
-
8/9/2019 LTE UMTS GSM Network Optimization
15/44
Batelco LTE IRAT Interworking Document
er5ing LTE cell RR R=Le5)in HEFtran(ell9DD K
t*re'*er5ingLow
Target .(D)A cell R( aR=Le5)in HFtran9re>Relation K
t*re'*Low
-i(ure 5- LTE to .(D)A re'election
I8 more t*an one .(D)A cell meet' t*e cell re'election criteria ar=le5minHutran8re>relation wit* t*e actual parameter
5alue' on 3 'i%e an% intro%uce t*re'*Low a' %B to a5oi% re'election attempt' at
too low 3 'ignal 'trengt* an% a5oi% an+ 'uuenc+ i' per8orme%
-
8/9/2019 LTE UMTS GSM Network Optimization
16/44
Batelco LTE IRAT Interworking Document
er5ing LTE cell RR R=Le5)in HEFtran(ell9DD K
t*re'*er5ingLow
Target .(D)A cell R( i' /TaR=Le5)in HFtran9re>Relation K
t*re'*Low
Target ) cell R=Le5 i' aR=Le5)in Heran9re>roupRelation K
t*re'*Low
I8 more t*an one ) cell meet' t*e cell re'election criteria auire% 'o a' to 'a5e 'canning ) 1400 w*ere it i' not pre'ent$
#$ (ell Re'election - .(D)A to LTE I%le )o%e"(ell re'election 8rom .(D)A to LTE 9AJ 121 1!#!" i' an optional 8eature allowing
a FE campe% on .(D)A to re'elect to an LTE cell$
(ell re'election 8rom .(D)A to LTE i' 'upporte% uencie' an% t*e parameter' 8or
cell re'election are 'ent on t*e
-
8/9/2019 LTE UMTS GSM Network Optimization
17/44
Batelco LTE IRAT Interworking Document
A' auenc+ in8ormation i'
-
8/9/2019 LTE UMTS GSM Network Optimization
18/44
Batelco LTE IRAT Interworking Document
In goo% .(D)A ra%io en5ironment: t*e re>uire% LTE 8re>uenc+ %etection
mea'urement rate i' low at lea't once e5er+ 0 'econ%'" an% applie' onl+ to *ig*er
priorit+ LTE 8re>uencie'$
In in8erior .(D)A ra%io en5ironment: re>uire% LTE 8re>uenc+ %etectionmea'urement rate i' %ou8%%mea'in%icator an%
8ac*mea'occac+clencoe88 an% compile re'ult' 8or IRAT moR=Le5)inHEutran9re>Relation
@r=le5mea' i' t*e RR le5el o8 t*e LTE cell mea'ure% R=Le5)in HEutran9re>Relation in%icate' t*e minimum re>uire% RR le5el 8or
camping on t*e LTE cell$
I8 more t*an one LTE cell meet' t*e criteria 8or cell re'election: t*e FE '*all re'elect
t*e LTE cell wit* t*e *ig*e't r=le5 le5el among t*e cell' meeting t*e criteria on t*e
*ig*e't a
-
8/9/2019 LTE UMTS GSM Network Optimization
19/44
Batelco LTE IRAT Interworking Document
.(D)A to LTE cell re'election to a *ig*er priorit+ LTE 8re>uenc+ i' per8orme% R=Le5)in
Kt*re'*6ig* %uring treelection 'econ%'$
-i(ure 6- .(D)A to LTE re'election
F'ing t*e current parameter 5alue': t*e FE will re'elect 8rom .(D)A to LTE cell
w*en LTE RR i' a
-
8/9/2019 LTE UMTS GSM Network Optimization
20/44
Batelco LTE IRAT Interworking Document
".".1 Tec)nolo($ Prioritiation
Tec*nolog+ prioritization *an%le' t*e camping o8 FE i8 more t*an one tec*nolog+ *a'
'u88icientl+ goo% 'ignal >ualit+$ B+ 'etting t*e tec*nolog+ priorit+: operator can %e8ine
a 'trateg+ 8or 'u
-
8/9/2019 LTE UMTS GSM Network Optimization
21/44
Batelco LTE IRAT Interworking Document
It i' recommen%e% to c*ange @RLEM)I7E 8rom 0 ;1!0%Bm" to ;124%Bm" an%
6RIOT6R 8rom to , 'o t*at LTE cell i' c*o'en onl+ w*en cell RR i' uenc+ occur' w*enC;
R( @RLEM)I7F K 6RIOT6R
9or Batelco 7etworkC
@RLEM)I7F G 0 ;11& %Bm"
6RIOT6R G 2 !%B"
A F)T cell i' onl+ 'electe% i8 t*e >ualit+ mea'urement (I(6 Ec/7o i' a
-
8/9/2019 LTE UMTS GSM Network Optimization
22/44
Batelco LTE IRAT Interworking Document
.(D)A e''ion (ontinuit+ 9AJ 121 0!&3" i' an optional 8eature t*at allow' a FE in
RR((onnecte% mo%e in t*e re>ui'ite co5erage con%ition' to uipment FE" in RR((O77E(TED
mo%e towar%' a .(D)A network w*en t*e FE mea'ure' poor co5erage in
t*e current LTE 8re>uenc+$ Re%irection i' controlle% uenc+ wit*in t*e LTE network wit* poor LTE
co5erage$ I8 t*e FE i' e5entuall+ relea'e%: it i' re>uire% to per8orm i%le mo%e cell
re'election to mo5e to a .(D)A network$ T*i' interruption time ma+
-
8/9/2019 LTE UMTS GSM Network Optimization
23/44
Batelco LTE IRAT Interworking Document
9or Batelco 7etwork: EFtran9re>Relation$connecte%)o%e)oRelation$connecte%)o%e)o
-
8/9/2019 LTE UMTS GSM Network Optimization
24/44
Batelco LTE IRAT Interworking Document
Re8erence ignal Recei5e% @ualit+ RR@": pro5i%ing an in%ication o8 t*e
re8erence 'ignal >ualit+: e'peciall+ *ig* inter cell inter8erence
T*e e7o%eB will con8igure two E5ent A2 mea'urement' in t*e FE to %etect poor
co5erage: an% u'ing t*e %e8ault 'etting': one o8 t*em will
-
8/9/2019 LTE UMTS GSM Network Optimization
25/44
-
8/9/2019 LTE UMTS GSM Network Optimization
26/44
Batelco LTE IRAT Interworking Document
In a%%ition: t*e (o5erage;Triggere% .(D)A IRAT 6an%o5er 8unction can al'o
-
8/9/2019 LTE UMTS GSM Network Optimization
27/44
Batelco LTE IRAT Interworking Document
9ollowing %eci'ion proce'' i' *an%le% a8ter e5ent A2$
-i(ure +- Deci'ion roce'' a8ter E5ent A2
T*e (o5erage;Triggere% .(D)A e''ion (ontinuit+ 8eature u'e' t*e E5ent A2
'er5ing cell uencie' LTE or
ot*er RAT'" are target can%i%ate' 8or tran'8erring t*e FE$
I8 t*e *ig*e't prioritize% 8re>uenc+ t*at t*e FE can *an%le *a' capauenc+: t*e RB can %o one o8 t*e 8ollowing two action'C
.*en t*e FE %oe' not *a5e 5oice
-
8/9/2019 LTE UMTS GSM Network Optimization
28/44
Batelco LTE IRAT Interworking Document
T*e (o5erage;Triggere% .(D)A IRAT 6an%o5er 8eature e=ten%' t*i' wit* t*e
8ollowing two new option'C
Imme%iatel+ initiate a *an%o5er 8or t*e FE to a cell on t*e target .(D)A
8re>uenc+ t*at i' known
-
8/9/2019 LTE UMTS GSM Network Optimization
29/44
-
8/9/2019 LTE UMTS GSM Network Optimization
30/44
Batelco LTE IRAT Interworking Document
Currentl$ Covera(e Tri((ered I#T ' to 0CD% is not activated in Batelco
net7or?. bove para,eters are reco,,ended for a trial before a /0 7ide
i,ple,entation is carried out.
#$10 (o5erage Triggere% ERA7 e''ion (ontinuit+
".1.1 Introduction
T*e (o5erage;Triggere% ERA7 e''ion (ontinuit+ 8eature pro5i%e' uenc+$ Re%irection i' controlle%
-
8/9/2019 LTE UMTS GSM Network Optimization
31/44
Batelco LTE IRAT Interworking Document
A *ig*er prioritization o8 LTE an% .(D)A to ERA7 i' %e'ire% an% 'etta
-
8/9/2019 LTE UMTS GSM Network Optimization
32/44
Batelco LTE IRAT Interworking Document
9ollowing %eci'ion proce'' i' *an%le% a8ter e5ent A2$
-i(ure 12- Deci'ion roce'' a8ter E5ent A2
-or BTC /et7or? ue%easure,entctive@-alse so blind release 7it) redirect
s)all be done to t)e )i()est priorit$ tec)nolo($ after *T i.e 0CD%.
It i' recommen%e% to make ue)ea'urementActi5eGTrue an% con8igure E5ent B2
t*re'*ol%' propo'e% a' 8ollowingC
Para,eter /a,e Para,eter Description nitDefault>alue
Prop>a
a,B2)o
-
8/9/2019 LTE UMTS GSM Network Optimization
33/44
Batelco LTE IRAT Interworking Document
trigger@uantit+B2T*e >uantit+ 8or t*re'*ol%1 'er5ing EFTRA7 cell" t*at i' 'ent to
t*e FE: an% i' u'e% toget*er wit* t*re'*ol%2 to trigger t*ee5entB2$
RR R
trigger@uantit+FtraB2T*e >uantit+ 8or t*re'*ol%2 neig*
-
8/9/2019 LTE UMTS GSM Network Optimization
34/44
Batelco LTE IRAT Interworking Document
4 Te't (a'e De5elopment
9ollowing te't ca'e' *a5e
-
8/9/2019 LTE UMTS GSM Network Optimization
35/44
Batelco LTE IRAT Interworking Document
& 9iel% Te't'
9ollowing re'ult' *a5e
-
8/9/2019 LTE UMTS GSM Network Optimization
36/44
Batelco LTE IRAT Interworking Document
u
-
8/9/2019 LTE UMTS GSM Network Optimization
37/44
Batelco LTE IRAT Interworking Document
u
-
8/9/2019 LTE UMTS GSM Network Optimization
38/44
Batelco LTE IRAT Interworking Document
u
-
8/9/2019 LTE UMTS GSM Network Optimization
39/44
Batelco LTE IRAT Interworking Document
3& !!"
-
8/9/2019 LTE UMTS GSM Network Optimization
40/44
Batelco LTE IRAT Interworking Document
10 7. Le5el Recommen%ation'
Attac*e% 8ile *a' all t*e con'oli%ate% network le5el recommen%ation' ma%e in t*i'%ocument$
Rele5ant c*ange' *a5e
-
8/9/2019 LTE UMTS GSM Network Optimization
41/44
Batelco LTE IRAT Interworking Document
12 Appen%i=
12$1 Brie8 %e'cription' 8or IRAT Relate% 9eature'
Below are '*ort %e'cription' o8 Batelco LTE 8eature' u'e% %uring LTE IRAT
Interworking Optimization$ 9urt*er %e'cription' o8 relate% parameter' can
-
8/9/2019 LTE UMTS GSM Network Optimization
42/44
Batelco LTE IRAT Interworking Document
In a%%ition: t*e (o5erage;Triggere% .(D)A IRAT 6an%o5er 8unction can al'o uenc+ wit*in t*e LTE network wit* poor LTE
co5erage$ I8 t*e FE i' e5entuall+ relea'e%: it i' re>uire% to per8orm i%le mo%e cell
re'election to mo5e to a ERA7 network$ T*i' interruption time ma+
-
8/9/2019 LTE UMTS GSM Network Optimization
43/44
Batelco LTE IRAT Interworking Document
e''ion tran'ition to a ERA7 network i' po''iuenc+$ Re%irection i' controlle% uenc+ wit*in t*e LTE network wit* poor LTE
co5erage$ I8 t*e FE i' e5entuall+ relea'e%: it i' re>uire% to per8orm i%le mo%e cell
re'election to mo5e to a .(D)A network$ T*i' interruption time ma+
-
8/9/2019 LTE UMTS GSM Network Optimization
44/44
Batelco LTE IRAT Interworking Document
er5ice per8ormance 8or an in%i5i%ual FE i' en*ance%