umts walktest data interpretation

8/18/2019 UMTS Walktest Data Interpretation

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Walk Test Data Interpretation

UMTS


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All Rights Reserved © Alcatel-Lucent 201122

• UMTS channels are 5 MHz in bandidth

• All sect!rs trans"it at the sa"e #re$uencies but di%erent scra"bling c!des &S'(

• The scra"bling c!de is trans"itted b) each sect!r as a *il!t signal

• U+ &,user e$ui*"ent !r basicall) "!bile( "easures the received *il!ts andestablishes c!""unicati!n ith the sect!r ith the str!ngest *il!t &"!st !# theti"e(

• A g!!d *er#!r"ing s)ste" ill have a str!ng *il!t d!"inating !ther *il!ts b) 5-.

d/• hen *il!t levels are si"ilar &ithin a c!u*le !# d/s( U+ s*eas ith "!re than!ne sect!r trans"itter si"ultane!usl) &s!#t hand!% s!#ter hand!%(

• This is n!t ver) g!!d e3ce*t #!r the transiti!n regi!ns beteen the cells

• 4ara"eter raning &!!d 67 4!!r( suggested here are ") *ers!nal scale89i%erent c!"*anies have di%erent criteria t! gauge their !n c!verage

• A c!"binati!n !# *ara"eters deter"ine the $ualit) !# signal n!t a single*ara"eter in is!lati!n

• The raning stated here "ainl) re:ects the "acr! *er#!r"ance

• 'riteria used t! ;udge "acr! s)ste" *er#!r"ance is n!t the sa"e as the !nesused hen there is a 9AS s)ste" installed

• i9AS usuall) adheres t! sti%er set !# re$uire"ents

UMTS Summary


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FORD_STADIUM_CONCOURSE

Pilot Ec: Strength of the pilot ignal

Scale: The !igger" the !etter

Good Values OK Values Poor Values

# $%& '(m $%& '(m# E) # $*& '(m + $*& '(m


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Same thing a pre,iou li'e !ut for the e)on' tronget pilot


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Pilot Ec/Io: In'i)ation of interferen)e-noie to the pilot ignal

Scale: The !igger" the !etter


# $./ '(m $./ # E)-Io # $.0 '(m + $.0 '(m


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PSC: 1rimary S)ram!ling Co'e" the pilot that 2ere 'ominant in

'ifferent area

Scale: It i !etter to ha,e one 1SC 'ominate e,ery 2here


7/17


Same information a li'e 3 for a pe)ifi) 'ete)te' pilot


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11/17


Receiver Power: Strength of the ignal re)ei,e' a)ro the UMTS)hannel in)lu'ing 2ante' an' un2ante' ignal

Scale: Uually the !igger" the !etter if they are the inten'e' ignal

not interferen)e

Good Values OK Values Poor Values# $4& '(m $4& '(m# RSSI# $%& '(m + $%& '(m


12/17


CS (Circuit Switched, Voice) Short: Short term )all are ma'e

)ontinuouly to gauge ytem )onne)ti,ity

Active AGG Ec/Io: Similar to li'e &

iRA (I!ter Radio Acees ech!olo"# $a!dover): 5an'o,er !et2een UMTS an'

6SM to a,oi' )all 'i)onne)tion" ,alue / i preferre'

i%$O (I!ter %re&ue!c# $a!dover): 5an'o,er !et2een t2o UMTS fre7uen)ie toa,oi' 'rop )all" ,alue / i preferre'


13/17


Same thing a li'e 3 !ut 2ith 'ifferent ,er!iage !e)aue it i from the ,oi)e )all


14/17


Num!er of pilot 'ete)te' 'uring the )all8 The ,alue i prefera!ly ." higher ,alue

in'i)ate la)9 of 'ominan)e


15/17


Same thing a li'e : for the hort 'uration ,oi)e )all


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'AR%C ('RA Asolute Radio %re&ue!c# Cha!!el u*er): The UMTS

)hannel num!er ue' !y the mo!ile 'uring the )all


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'E ra!s*it Power: Mo!ile output po2er at ea)h lo)ation

Scale: The lo2er" the !etter


+ $./ '(m $./ '(m# T; #

umts walktest data interpretation

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