lte drive testing powerpoint
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DRIVE TESTPrepared by
Ahmed Taha El-Ghazaly
Hazem Mohamed Mamdouh
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-Preparation for DT.
-Types of DT.
-Analysis of some !ases in the "eld durin# DT.
-Tools for analysis.
%utline
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Tems soft&are. Tems 'it. 1-Tems (i!ense )Don#ol*. 2- Mobile e+uipments )',i / '0i*.
- GP. $- Eternal hub )if needed*.
3pdated !ell "le and 4re+uen!y plan )4P*.Map.5n6erter.
1-Preparation for DT
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2-Types of Dri6eTest
r.ite 8eri"!ation.mar:in#.
al Tests.
nin#. ;- 5ndoor.
onal =oomin#. ,-Auditin#.national =oomin#. 0- (o!:in# on !ertain 977H>s?7>s=oads. - Tra!in# !alls usin# TM5 or 5M5
stin# Tilts ? Azimuth. 1- pe!i"ed Tests.
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Analysis for some !ases in the field durin# D
%6er shootin#.
7ross feeder.
9ad +uality.
ites ha6in# same 7>s.
9ad !o6era#e.
Missin#
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$-Tools for analysis
Tems =oute analysis.
Map5nfo.
s )Top
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1-Prepration for DT.
Fig.1
1.1 7onne!t the e+uipments as sho&n in "#.1
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.2 Adust the !ommand se+uen!e a!!ordin# to the DT needs as sho&n in "#.2
Fig.2
1-Prepration for DT. )7ont.*
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1. 3pload the re#ional map and then the !ell "le as sho&n belo& in "#.
Fig.3
1-Prepration for DT. )7ont.*
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1.$ 4i#.$ ? "#.@ sho&s the !ell "le ? 4P for Hua&ei>s 5
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Fig.5
1-Prepration for DT. )7ont.*
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1.@ The in6erter is used to !har#e the laptop ?themobile e+uipments .
1-Prepration for DT. )7ont.*
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2.1 Cluster.
This test is mainly a!hie6ed usin# t&o mobiles for 2G?G.
4or !he!:in# retainability the !ommand se+uen!e is adusted as follo&B
- in"nity number of minutes. - !all &ait 1 to 1@ se!.
4or !he!:in# a!!essability the !ommand se+uen!e is adusted as follo&B
- 2 minutes per !all.
- !all &ait 1 to 1@ se!. 4i#.1 sho&s an eample for a !luster route in Portsaid.
2-Types of Dri6eTest.
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Fig.1
-Types of Dri6eTest )7ont.*.
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2.2 Single Site Verifcation.
There are t&o :inds of sin#le site 6eri"!ation testsB
2G verifcation.
- 7he!:in# the hando6er bet&een the se!tors of the site.
- 7he!:in# the hando6er )in ? out* &ith the nei#hbors of the
site.
- 7he!:in# the !o6era#e of ea!h se!tor.
- 7he!:in# !ross feeder.
-7he!:in# the !apability to a!!ess on the internet
-7he!:in# the !apability to do&nload "les to 6ie& the GP=
rate. )%ptional*
-Types of Dri6eTest )7ont.*.
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3G verifcation . -7he!:in# the !o6era#e of ea!h se!tor.
-7he!:in# !ross feeder.
-7he!:in# the 6ideo !all establishment under the site )lo!:in# on G*.
-7he!:in# !ell resele!tions from 2G to G under the site )idle mode*.
-7he!:in# !ell resele!tions from G to 2G &ith attenuation )idle
mode*.
-7he!:in# hando6er !ir!uit s&it!h )7 session* by lo!:in# on normal
mode 1st
then ma:e a 6oi!e !all /attenuate till the =AT hando6er is a!hie6ed
from G to 2G.
-7he!:in# hando6er pa!:et s&it!h )P session* by lo!:in# on normal
mode 1st
then lo# on the internet /attenuate till hando6er o!!urs from G to
GP=. The !ommand se uen!e is usuall ad usted as 2min er !all and
-Types of Dri6eTest )7ont.*.
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2.3 enc!"ar#ing.
This test is a!hie6ed by usin# mobiles one for ea!h operator.
The main aim of this test is to !ompare bet&een the performan!e
of ea!h operator.
The !ommand se+uen!e is adusted as eplained before in the
!luster test.
The route of this test is de!ided by the Team (eader.
-Types of Dri6eTest )7ont.*.
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-Types of Dri6eTest )7ont.*.
Fig.1
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Fig.2
-Types of Dri6eTest )7ont.*.
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2.4.2. %ational Roa"ing.
The aim of this test is to !he!: the roomin# from Etisalat to
8odafone ?
Mobinil ? 6i!e 6ersa. After the a!hie6ement of roomin# pro!ess !alls must be made
to !he!: it>s
establishment.
5n !ertain areas as a#reed by the three operators / &hen the!o6era#e of
Etisalat be!omes so &ea: it must room automati!ally on one of
the t&o
operators dependin# on &hi!h area is for 8odafone ? Mobinil.
-Types of Dri6eTest )7ont.*.
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2.4.3. International Roa"ing.
5ts mainly the same idea for national roomin# e!ept that
it>s done to !he!: the roomin# bet&een Etisalat and other
forei#n operators su!h as El Ga&al/ mt! et!.
-Types of Dri6eTest )7ont.*.
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4.4. &ain Roa's.
This test is done some times to !he!: !ertain areas after a !luster test andit>s usually the main roads .
5t>s ea!tly done as des!ribed before in the !luster test.4i#.1 sho&s the main roads of 5smallia.
Fig.1
-Types of Dri6eTest )7ont.*.
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4i#.1Fig.1
-Types of Dri6eTest )7ont.*.
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2.4.5. (')usting tilts * a+i"ut!.
4irst of all you must ha6e the updated !ell "le ? 4P as mentioned
before.
The aim of this test is to ma:e sure that the tilt and the azimuth
are as in the 4P
Ele!tri!al or Me!hani!al tilts are a!hie6ed some time unli:e the
4P to sol6e o6ershootin# problems.
The 4P must then be updated &ith the ne& tilts for further tests.
9efore and after tests are some times made to !he!: if there is
any impro6ement in the site for the spe!i"ed !han#es either in
tiltin# or azimuth.
-Types of Dri6eTest )7ont.*.
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2.4.-. (u'iting.
The aim of this test is to !olle!t the follo&in# data from the site.
1-ite name. 4rom the 4P 2-(atitude. 4rom GP
-(on#itude. 4rom GP $-Azimuth. 3sin# the !ompass @-Antenna hei#ht. 7ountin# the no. of stubs &ere ea!h stub is
meters. ;-9uildin# hei#ht. 7ountin# the no. of oors &ere ea!h oor is
meters e!ept for the #round oor it>s $ meters
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2.4.. /oc#ing on certain CC0s * SCs.
The aim of this test is to !he!: the !o6era#e ? 6oi!e !alls of a
!ertain 977H of a !ertain se!tor.
4or 2G &e lo!: on a !ertain 977H in the idle mode to assure
that the ms &ill !ell resele!t on it.
Then to pre6ent H% to the site>s nei#hbors &e tar#et the H% to
that !ertain 977H in the dedi!ated mode.
4or the G &e !an only sele!t the !ertain 7 in the idle mode.
4i#.1?2 sho&s us ho& to a!hie6e the abo6e test for 2G in both
idle and dedi!ated mode / "#. sho&s the G !ase.
-Types of Dri6eTest )7ont.*.
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-Types of Dri6eTest )7ont.*.
Fig.1
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Fig.3
-Types of Dri6eTest )7ont.*.
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2.4.. Tracing calls using T&SI or I&SI. The aim of this test is to tra!e !ertain !alls to monitor the si#nal? identify any problem su!h as blo!:ed !alls. 4irst you !all the
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Fig.2
-Types of Dri6eTest )7ont.*.
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2.4.1. S$ecife' tests.
These tests are random meanin# that the Team (eader &ill
des!ribe ea!tly the aim of the test in!ludin# the !ommand
se+uen!e su!h asB
1- 8ideo !alls at !ertain sites.
2- 1 6oi!e !alls &ith !ertain !ommand se+uen!e in diFerent
areas.
- G silent !alls.
$- 5dle mode test.
-Types of Dri6eTest )7ont.*.
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3.1 vers!ooting.
hen &e say that this site se!tor o6ershoots it means that it
ser6es at 6ery lon# distan!e &ith #ood = (e6el &ere in this area
it>s supposed to be ser6ed by another !loser site ha6in#
approimately the same si#nal stren#th.
This may !ause hi#h interferen!e leadin# to bad +uality.
3sually the re!ommendation for this !ase is to do&ntilt the
antenna.
4i#.1 sho&s an eample for the abo6e !ase.
Analysis for some !ases in the field durin# DT.
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Fig.1
nalysis for some !ases in the field durin# DT. )7on
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.2 Cross Fee'er.
5t>s usually obser6ed durin# a site 6eri"!ation test.
5t means that se!tor ser6es in the area of se!tor y and 6i!e 6ersa as
he 977Hs of these t&o se!tors are in6ersed.
Another type of !ross feeder is !alled T7H 74 &hi!h means that the T7Hs
of these t&o se!tors are also in6ersed.
ame 4or G but in this !ase &e are dealin# &ith in6ersed 7s.
This !ase may !ause also hi#h interferen!e leadin# to bad +uality.
The re!ommendation is to s&it!h the feeders from the shelter.
4i#.1?2sho&s an eample for the abo6e !ase for 2G?G respe!ti6ely.
nalysis for some !ases in the field durin# DT. )7on
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Fig.1
nalysis for some !ases in the field durin# DT. )7on
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Fig.2
nalysis for some !ases in the field durin# DT. )7on
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3.3 a' 6ualit7.
9ad +uality o!!urs either due to bad !o6era#e or hi#h interferen!e
&hi!h is mainly !o-!hannel &hi!h is :no&n from 75 data in the
TEM data !olle!tion.
5f the reason is bad !o6era#e then the infe!ted site or antenna
must be !he!:ed.
5f the reason is the hi#h interferen!e the =4 plannin# must be
re!he!:ed usin# nastar tool to identify the reason for the
interferen!e.
4i#.1 sho&s an eample for the abo6e !ase.
nalysis for some !ases in the field durin# DT. )7on
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Fig.1
nalysis for some !ases in the field durin# DT. )7on
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3.4 Sites !aving sa"e SCs.
5t>s not re!ommended for t&o sites to ha6e the same 7>s as it &ill not
be ob6ious durin# the data !olle!tion &hi!h site of both ser6es the M
4i#.$ sho&s an eample for the abo6e !ase &ere as sho&n both sites
;1$ ? ;$2 ha6e the same 7>s.
nalysis for some !ases in the field durin# DT. )7on
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3.5 a' coverage.
hen &e are tal:in# about bad !o6era#e &e mean abnormal
!o6era#e/ &hi!h means that &e are standin# &ithin the main beam
of the antenna at a reasonable distan!e and still the !o6era#e is
&ea:.
This may be due to &ron# azimuth / the azimuth in the "eld is not
set as the 4P.
5t may be also due to lo& po&er transmission from the 9T &hi!h
is !he!:ed by a po&er meter other&ise hard&are failure.
4i#.1?2 sho&s an eample for the abo6e !ase.
nalysis for some !ases in the field durin# DT. )7on
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Fig.1
nalysis for some !ases in the field durin# DT. )7on
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Fig.2
nalysis for some !ases in the field durin# DT. )7on
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3., &issing neig!8ors.
This !ase may !ause to dropped !alls / bad !o6era#e as the M &ill
not be able to H% on the tar#et site as it>s not :no&n for the ser6in#
site.
The nei#hbor list must be then !he!:ed from the (MT)97;*
/&hile nastar is used to add re!ommended nei#hbors or delete
unne!essary ones.
3.- Dro$$e' calls .
A drop !all may o!!ur due to the abo6e !ase as mentioned.
5t may also o!!ur due to an abnormal release in the T7H or D77H
after it Is bein# o!!upied su!!essfully.
5n the D( !ase the radio lin: time out may de!rease to zero.
nalysis for some !ases in the field durin# DT. )7on
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- Analysis for some !ases in the field durin# DT.)7ont.*
Fig.1
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- Analysis for some !ases in the field durin# DT.)7ont.*
Fig.2
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Fig.3
nalysis for some !ases in the field durin# DT. )7on
5n this !ase sho&n belo& ;2-1 o6ershoots in the dire!tion of the uez !analo as a result the si#nal rea!hed up to @'m.4i#.?$ sho&s the abo6e !ase.
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. 0o 9ailure * 'ela7.
5n the !ase of H% failure the M fails to rea!h the tar#et !ell and so it returns
a!: to the sour!e !ell.
he reason for this !ase may be due to !hannel interferen!e or poor !o6era#e.
5n the other !ase H% delay the 957 of the nei#hbor is de!oded but H% o!!urs
mu!h later time.
he reason for this !ase that all possible nei#hbors may suFer blo!:in# or some
the H% parameters )H% &at!h time / H% 6alid time* need to be adusted.
nalysis for some !ases in the field durin# DT. )7on
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$-Tools for analysis
After !olle!tin# the data in the "eld the lo# "les are then handled to theptimization team so they !an do the analysis &or: in order to sol6e any
problems fa!ed and try to impro6e the net&or: performan!e.
The analysis &or: is done throu#h out the follo&in# tools and soft&ares B
1-Tems =oute analysis.
2-Map5nfo.
-s )Top
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4inally 5 &ould li:e to add that tryin# to do analysis in the "eld durin# the DTas des!ribed throu#h out the presentation sa6es a lot of time for the optimizerto ta:e eFe!ti6e and +ui!: a!tions to sol6e the fa!ed problems.
9esides that it also adds to your "eld eperien!e and helps you to impro6e
yourself and start your "rst step as an %ptimizer.
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