3 RG10 Wideband AMR and TFO v2

7/17/2019 3 RG10 Wideband AMR and TFO v2

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1 © Nokia Siemens Networks

Wideband AMR and AMR Tandem Free

Operation




Background InformationAMR-WB Signal Compression

• 3GPP introduced AMR-WB codec modes achiein! a si!ni"icant im#roement in

s#eech $ua%it& '&( ) *+tension o" s#eech 'andwidth carried on a radio channe% , dou'%ed sam#%in! rate "rom

. k/0 NB si!na%s to 1 k/0 AMR-WB

) *""icient source encodin! a%!orithms

• 4n conc%usion5 AMR-WB o""ers increased inte%%i!i'i%it& and natura%ness &ie%din! a"ee%in! o" trans#arent communication , a more "ace-to-"ace %ike sound sensation

is #erceied in a mo'i%e communication

6re$uenc& s#ectrum o" B signals carried on a radio channe%

6re$uenc& s#ectrum o" AMR-WB signals carried on a radio channe%

*+tension o" s#eech 'andwidth re$uires

doubling t!e sampling fre"uenc#

N&$uist-Shannon theorem

$% k&' sampling rate

( k&' sampling rate




Background InformationAMR-WB Codec Modes and Source Bit Rates

• AMR-WB o""ers codec modes with "ie source 'it rates

Codec mode Codect#pe

Modulationt#pe

Bit rate o of bitsper s#mbol

S#mbolrate

78/9W6S :; 6u%%-rate GMS< 22:. k'#s 1 22:. k'#s

78/9W6S .:.= 6u%%-rate GMS< 22:. k'#s 1 22:. k'#s

78/9W6S 12:= 6u%%-rate GMS< 22:. k'#s 1 22:. k'#s

>-78/9W6S 1=:.= 6u%%-rate .-PS< .:? k'#s 3 22:. k'#s

>-78/9W6S 23:.= 6u%%-rate .-PS< .:? k'#s 3 22:. k'#s

>-78/9W/S :; /a%"-rate .-PS< 3?:2 k'#s 3 11:? k'#s

>-78/9W/S .:.= /a%"-rate .-PS< 3?:2 k'#s 3 11:? k'#s

>-78/9W/S12:=

/a%"-rate .-PS< 3?:2 k'#s 3 11:? k'#s

7he same source 'it rate modu%ated

with the )MS* signal in FR or with

the (+S* signal in &R



? © Nokia Siemens Networks

Background InformationAMR-WB ,s AMR-B Source Bit Rates

• AMR-WB o""ers codec modes with "ie source 'it rates(

) 3 GMS< "u%% rate codec modes BSS1?

) = .-PS< "u%% rate codec modes additiona%%& s#eci"ied '& 3GPP5 not in BSS1?

) 3 .-PS< ha%" rate codec modes additiona%%& s#eci"ied '& 3GPP5 not in BSS1?

• AMR-NB o""ers codec modes with ei!ht source 'it rates(

) . GMS< "u%% rate codec modes

) = GMS< ha%" rate codec modes @:= k'#s is not su##orted in BSS

..( kbps

..( kbps



= © Nokia Siemens Networks

Background InformationAMR-WB ,s AMR-B /ink /e,el +erformance

• Per"ormance o" codec modes o" com#ara'%e source 'it rates is simi%ar(

) Ro'ustness o" AMR-WB codec modes a!ainst channe% errors is as !ood as o" AMR-NB"or com#ara'%e source 'it rates and channe% t&#e5 which #roides simi%ar 6*R at !ienradio conditions

TC&0AFS %1 2 3 dB TC&0WFS %% 2 3 dB

AMR-B AMR-WB

F 4 R 5 6 7

F 4 R 5 6 7

C0I 5dB7 C0I 5dB7



© Nokia Siemens Networks


• Su##ort o" ro'ust codec modes with source 'it rates down to ?:@= k'#s #roides a

C0I gain of . dB at F4R 8 $6 "or 78/9A6S com#ared to 78/9W6S

TC&0AFS 913 2 : dB TC&0WFS %% 2 3 dB

TC&0AFS TC&0WFS

F 4 R 5 6 7

F 4 R 5 6 7

C0I 5dB7 C0I 5dB7


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• Audio 'andwidth e+tension in AMR-WB to twice o" that used in AMR-NB #roides essentia%

su'ectie s#eech $ua%it& im#roements in terms o" SC4D in !ood radio conditions• 4n 'ad radio conditions AMR-WB su""ers "rom hi!h 6*R , inte%%i!i'i%it& 'ecomes

unacce#ta'%e a'oe a certain 6*R thresho%d

• AMR-NB o""ers more ro'ust codec modes down to ?:@= k'#s sti%% kee#in! su""icient%& %ow6*R , "air s#eech $ua%it& and inte%%i!i'i%it& is sti%% maintained

4n,elope of best performing

AFS codec modes

4n,elope of best performing

WFS codec modes

*+ce%%ent s#eech $ua%it&

com#ared to AMR-NB due to

intrinsic nature o" AMR-WB

s#eech encodin! - no

se"uential frame errors

Increased number of se"uential frame errors s#oi%s s#eech

inte%%i!i'i%it& which cannot 'e com#ensated '& audio 'andwidthe+tension een i" the most ro'ust W6S codec mode is on air

AMR-NB is sti%% a'%e to a##%&

een more ro'ust codec mode

and maintain fair "ualit#

'ack to s%ide 1.

D SC4 ) s#eech $ua%it& indicator E;515 e+-Siemens #ro#rietar&

measure o" su'ectie s#eech $ua%it&


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1 2 3 ? = M>S

Fnarrow'andF sca%ema; MOS eg < 9$

1 2 3 ? = M>S

Fwide'andF sca%ema; MOS eg < 9$:

Measurement resu%ts can

not 'e com#ared direct%&

Sin!%e sca%e "or

com#arison is needed

1 2 3 ? = M>S

Fnarrow'and wide'andF sca%ema; MOS eg < 9$:

ma; MOS eg < :$

4" NB M>S , ?:; and5 e:!: WB M>S , 3: it doesnHt

mean that B =ualit# > WB =ualit#5

'ecause score ?:; is measured with res#ect to

narrow'and re"erence and 3: is measured with

res#ect to wide'and re"erence

Background InformationAMR-WB ,s AMR-B Mean Opinion Score ?MOS@


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Background InformationAMR-WB Impact on imensioning

• Penetration o" AMR-WB ca#a'%e termina%s Re%-= is e+#ected to 'e %ow at

the ear%& sta!e o" the "eature de#%o&ment( ) Most o" the ca%%s wi%% 'e esta'%ished in a narrow 'and mode5 'ecause the

#ro'a'i%it& to set u# a ca%% 'etween two AMR-WB ca#a'%e termina%s wi%% 'e %ow

) 7he e+#ected im#act on tra""ic mode%s and thus on ca#acit& is ne!%i!i'%e

• With the increased #enetration o" the AMR-WB ca#a'%e termina%s more

wide 'and ca%%s wi%% 'e esta'%ished( ) 7he ca%%s mi!ht 'ecome more "re$uent and %on!er what wi%% hae an im#act on

o'sered traffic models and there"ore on network dimensionin! #rocess(

&ard-blocking %imit "or the assumed GoS reached ear%ier due to an increased ca%%%en!th and a "re$uenc& o" AMR-WB ca%% attem#ts a%so increased si!na%%in!5

Soft-blocking %imit "or the assumed QoS reached ear%ier as a conse$uence o" an

increased ce%% %oad and thus inter"erence

) 6uture reision o" the tra""ic mode%s re$uired 'ased on counters9<P4s(

Based on measurements in a rea% network introduction o" *6R caused an increase o" aca%% ho%d time '& =-.I com#ared to GSM 6R , a simi%ar e""ect e+#ected "or theintroduction o" AMR-WB


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Background InformationAMR-WB Impact on imensioning

• Penetration o" AMR-WB ca#a'%e termina%s Re%-= is e+#ected to 'e %ow at

the ear%& sta!e o" the "eature de#%o&ment( ) Most o" the ca%%s wi%% 'e esta'%ished in a narrow 'and mode5 'ecause the

#ro'a'i%it& to set u# a ca%% 'etween two AMR-WB ca#a'%e termina%s wi%% 'e %ow

) 7he e+#ected im#act on tra""ic mode%s and thus on ca#acit& is ne!%i!i'%e

• With the increased #enetration o" the AMR-WB ca#a'%e termina%s more

wide 'and ca%%s wi%% 'e esta'%ished( ) 7he ca%%s mi!ht 'ecome more "re$uent and %on!er what wi%% hae an im#act on

o'sered traffic models and there"ore on network dimensionin! #rocess(

&ard-blocking %imit "or the assumed GoS reached ear%ier due to an increased ca%%%en!th and a "re$uenc& o" AMR-WB ca%% attem#ts a%so increased si!na%%in!5

Soft-blocking %imit "or the assumed QoS reached ear%ier as a conse$uence o" an

increased ce%% %oad and thus inter"erence

) 6uture reision o" the tra""ic mode%s re$uired 'ased on counters9<P4s(

Based on measurements in a rea% network introduction o" *6R caused an increase o" aca%% ho%d time '& =-.I com#ared to GSM 6R , a simi%ar e""ect e+#ected "or theintroduction o" AMR-WB


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Background InformationTandem Operation

• 7raditiona%%& the MS-to-MS oice connections are set in the tandem

o#eration 7> what "orces dou'%e s#eech encodin!9decodin! when#assin! 'etween the MSs

• 7he s#eech $ua%it& is de!raded '& the dou'%e encodin!9decodin!5es#ecia%%& when /R codec modes are on air

BSCBTS MSCTRA MSC TRA BSC BTS

A'is A A'is Ater A

1 k'#s s#eech

com#ressed? k'#s 47J-7 G:@11 A9K-%aw P8M

7LM

encodingdecodingencoding decoding1 k'#s s#eech

com#ressed

oss o" $ua%it& due totrans-codin! in 7RAJ

oss o" $ua%it& due tocom#ression in MS

oss o" $ua%it& due totrans-codin! in 7RAJ

oss o" $ua%it& due todecom#ression in MS

Jm Ater Jm




Background InformationTandem Free Operation

• 7andem 6ree >#eration 76> aims at aoidin! the dou'%e s#eech trans-

codin! in the MS-to-MS ca%%s• 4" 'oth MSs use the same codec t&#e it is conenient to send com#ressed

s#eech "rames trans#arent%& throu!h the network

• 7he s#eech $ua%it& de!radation is aoided

BSCBTS TRA TRA BSC BTS

A'is Ater A A'is Ater AJm Jm

1 k'#s com#ressed s#eech

7LM

encoding decoding

oss o" $ua%it& due tocom#ression in MS

oss o" $ua%it& due todecom#ression in MS

MSC MSC




Background InformationTFO Impact on =ualit#

• 76> is indis#ensa'%e when a connection is esta'%ished with the AMR-WB

codec modes( ) Wide-'and s#eech sam#%es are cone&ed throu!h the transmission #ath , the

"u%% 'ene"it is !ot out o" the AMR-WB a##%ication

) >therwise5 the tandem o#eration causes the wide-'and si!na% is com#ressed tothe narrow-'and si!na% , the $ua%it& im#roements o" the WB-AMR a##%icationare %ost

• ack o" 76> is not critica% "or connections with the AMR-NB codec modes(

) Si!ni"icant deterioration o" s#eech $ua%it& is o'sered "or ha%"-rate codec modeswith the %owest source rates on%&

• 76> can 'e esta'%ished 'etween 6R5 /R or *6R un%ess the AMR codecmodes are aai%a'%e(

) S#eech $ua%it& o" the AMR codec modes een with trans-codin! is 'etter thano" the 6R5 /R or *6R codec modes in 76>



1? © Nokia Siemens Networks

Background InformationTFO Impact on =ualit#

BSC$BTS$ MSC$TRA$ MSC. TRA. BSC. BTS.MS$ MS.

WB si!na% WB $ua%it&

WB-AMR it! t!e TFO


WB si!na% WB $ua%it& ( bits D $% k&' sampling rate 8 $.( kbps

$.( kbps does not fit to %9 kbpsEE 8> donsampling to ( k&'

B signal ?B "ualit#@EE

upsampling to $% k&' to get back WBsignal 8> t!e B "ualit# is kept

WB si!na% B "ualit#

WB-AMR it! t!e TO



1= © Nokia Siemens Networks

Background Information/ink Adaptation it! TFO

• 4n case the 76> is runnin! with the AMR(

) 7he AMR %ink ada#tation is disa'%ed in the %oca% and distant B7S

) Se%ection o" the codec mode is done considerin! 'oth radio %inks at a time( 4" radio conditions at 'oth ends a%%ow usin! di""erent codec modes then the more ro'ust

codec mode is se%ected as a common one

8odec mode u#!radin! is #ossi'%e i" 'oth radio %inks are !ood enou!h

8odec mode down!radin! is necessar& i" at %east one radio %ink is not !ood enou!h

) Li""erent codec modes can 'e actiated in 'oth directions o" the connection5 i:e:"rom MS1 to MS2 and "rom MS2 to MS1

) 7he same codec mode must 'e actiated in one direction5 i:e: in u#%ink "romMS1 to B7S1 and in down%ink "rom B7S2 to MS2 as we%% as in u#%ink "rom MS2 toB7S2 and in down%ink "rom B7S1 to MS1

• Se%ection o" the common codec mode hae im#act on $ua%it&(

) At stron!%& ar&in! radio conditions at B7S1MS1 and B7S2MS2 %ow and hi!h894 the common codec mode is not o#timum "or hi!h 894 when com#arin! withthe case without 76> and inde#endent se%ection o" the codec modes

) But there is a F$ua%it& !ainF due to aoidance o" trans-codin!






AMRcodec1 AMRcodec1 AMRcodec1

AMRcodec2 AMRcodec2 AMRcodec2

AMRcodec$ ma& 'e di""erent "rom AMRcodec.E


AMRcodec1 AMRcodec2 AMRcodeco#t

AMRcodecopt 8 min G AMRcodec$H AMRcodec.

Worse radio inter"ace "orces

more ro'ust codec mode to

use a%thou!h 894 is hi!hO

/i!h 894 , use 12:= k'#s5 'ut switch

to :; k'#s with 76>

ow 894 , use :; k'#sO 'ut F$ua%it& !ainF due to no trans-codin!



1@ © Nokia Siemens Networks

• Se%ection o" the common codec mode "or the %oca% and distant end ma& introduce

a round tri# de%a& , temporar# "ualit# degradation ?!en dongrading@ ma&occur 'ecause codec chan!e is not e+ecuted immediate%&(

) Lown!radin!( u#%ink ) no e""ect Lown!radin!( down%ink ) has e""ect

) J#!radin!( u#%ink ) no e""ect J#!radin!( down%ink ) has e""ect




1. © Nokia Siemens Networks

Background InformationTFO Impact on +lanning and imensioning

• 76> in-'and si!na%%in! s%i!ht%& increases si!na%%in! and #rocessin! %oad in

A'is9Ater9A inter"aces due to e+chan!e o" in"ormation 'etween %oca% anddistant connection ends(

) 76> in-'and si!na%%in! is 'ased on techni$ue o" 'it stea%in! , no additionalcapacit# is re$uired to cone& the si!na%%in! in"ormation

• G:@11 P8M 'its are an&wa& transmitted in the A inter"ace(

) 7here are not capacit# sa,ings in the A inter"ace , sti%% one P8M "rametrans"ers a sin!%e ca%%




Wideband AMR BSS.JK%J



2; © Nokia Siemens Networks

Wideband AMRSupported functionalities

• >n%& the AMR-WB 78/9W6S GMS< codec modes are su##orted(

) Actiated '& the #arameter amrWbFrCodecModeSet B7S o'ect• ink ada#tation as "or the AMR-NB codec modes(

) 7hresho%ds to actiate the codec mode ada#tation(

amrWbFrThreshold1 B7S o'ect5 = dB

amrWbFrThreshold2 B7S o'ect5 1; dB

) /&steresis to e%iminate osci%%ations in the codec mode ada#tation(

amrWbFrHysteresis1 B7S o'ect5 2 dB

amrWbFrHysteresis2 B7S o'ect5 2 dB




Wideband AMR&ardare Re"uirements

• AMR-WB is su##orted '& the "o%%owin! network entities(

) B7S( 6%e+i *d!e SW *P3:;5 MetroSite *d!e SW 8M@:;5 J%traSite *d!e*LG* 'ase 'and unit BB2* or BB265 SW 8@:; and J%tra Site /&'rid sameas *LG*5 'ut with GMS<-on%& R6 units5 SW 8@:;

) 7RAJ( 78SM3i and MGW J?:1

) BS8( a%% BS8 t&#es with SW %ee% 1?

) MSS( SW %ee% M1?• 7he a'oe %isted network entities su##ort 76> ) otherwise a##%ication o"

the AMR-WB "eature wou%d not 'rin! an& 'ene"its

• 4n-#ath e$ui#ment must 'e trans#arent "or 76>

• Restriction(

) North Re%H MS8 does not su##ort AMR-WB , AMR-WB "u%%& su##orted '&the North MGW97RAJ Re%-? so%ution




Wideband AMR+ooling Concept in TCSM:i

• 7here are new #oo%s de"ined "or the A inter"ace to su##ort AMR-WB ca%%s

• 7he new #oo%s are mana!ed as the e+istin! ones '& usin! the MM commands ,a 78P8M association is created 'etween a trans-coder unit and a P8M %ine

• When a wide-'and ca%% arries(

) A ca%% is a%%ocated to a #rimar& #oo% i" de"ined( 3@ or 3. accordin! to the AMR-WBhuntin! order , de"au%t huntin! order can 'e modi"ied

) 4" there are not "ree resources in the #rimar& #oo%s the ca%% is a%%ocated to asecondar& #oo% i" de"ined( ?;

) 4" there are not "ree resources in the #rimar& and secondar& #oo%s the ca%% isdown!raded to a AMR-NB ca%% switch to the #oo% i" de"ined( 235 2.5 ::: and so on

Speec! codec +rimar# pool Secondar# pool

6R 15 =5 35 @5 2;5 2.5 3. 1;5 215 135 225 325 ?;

*6R =5 @5 2;5 2.5 3. 1;5 215 135 225 325 ?;

NB-AMR 6R 235 2.5 3@5 3. 325 ?;

/R 25 35 @5 2;5 2. 1;5 215 135 225 325 ?;

NB-AMR /R 235 2.5 3@5 3. 325 ?;

WB-AMR 3@5 3. ?;

7he same #oo% hand%es "ew codec

t&#es ) there is no need to switch'etween #oo%s when a ca%% chan!es its

mode "rom NB to WB and ice-ersa

Le"au%t AMR-WB huntin! order




Wideband AMR+ooling Concept in M)W0TRA

• 7here is a new #oo% de"ined "or the A inter"ace to su##ort AMR-WB ca%%s

• 7he new #oo%s are mana!ed as the e+istin! ones '& usin! the MMcommands , a 78P8M association is created 'etween a trans-coderunit and a P8M %ine

• When a wide-'and ca%% arries(

) A ca%% is a%%ocated to a circuit #oo% F3@F ) the onl# one su##ortin! AMR-WB

) 4" there are not "ree resources in the circuit #oo% F3@F the ca%% is down!raded to a AMR-NB and switched to the circuit #oo% F23F or F2.F i" de"ined

Speec! codec +rimar# pool Secondar# pool

6R 15 =5 35 @5 2;5 2. 1;5 215 135 225 32

*6R =5 @5 2;5 2. 1;5 215 135 225 32

NB-AMR 6R 235 2.5 3@ 32

/R 25 35 @5 2;5 2. 1;5 215 135 225 32

NB-AMR /R 235 2.5 3@ 32

WB-AMR 3@ 4" no "ree resources in #oo% 3@5 the AMR-WB

ca%% is down!raded to AMR-NB 6R

7he same #oo% hand%es "ew codec t&#es )

there is no need to switch 'etween #oo%s

when a ca%% chan!es its mode "rom AMR-NB to WB and ice-ersa

Le"au%t AMR-WB huntin! order




AMR Tandem Free Operation ?BSS.$$$(@




AMR Tandem Free OperationSupported Functionalities

• 76> can 'e esta'%ished when 'oth connection ends hae their %ists with

A8S "i+ed in the wa&( ) AMR-WB F8on"i!-WB-8ode-;F con"i!uration( :; k'#s5 .:.= k'#s and 12:=

k'#s

) AMR-NB F8on"i!-NB-8ode-1F con"i!uration( ?:@= k'#s5 =: k'#s5 @:? k'#s and12:2 k'#s 3GPP recommended

• 76> is not #ossi'%e with other com'inations o" codec modes

• 76> #rotoco% su##orts the "o%%owin! decision a%!orithms at ca%% setu#9/>s#eci"ied '& 3GPP(

) Q4mmediate 76> esta'%ishmentH , 76> can 'e esta'%ished i" 'oth connectionends use t!e same codec t#pe5 i:e: AMR-WB5 AMR-NB 6R or AMR-NB /R

) Q6R-/R matchin!H , 76> can 'e esta'%ished een i" connection ends o#erate

with different codec t#pes5 i:e: /R AMR-NB and 6R AMR-NB5 'ut with the codecmodes o" the same source 'it rates

) Q4mmediate codec t&#e o#timisationH , 76> can 'e esta'%ished i" 'oth connectionends use different codec t#pes5 i:e: AMR-WB and AMR-NB5 'ut su##ort acommon codec t&#e




AMR Tandem Free OperationImmediate TFO 4stablis!ment

• 4mmediate 76> esta'%ishment with the AMR-WB codec modes

• 4mmediate 76> esta'%ishment with the AMR-NB codec modes

Radio conditions9con"i!uration

a%%ow usin! AMR-WB codec

modes at 'oth connection ends


a%%ow usin! 6R AMR-NB codec



a%%ow usin! /R AMR-NB codec





AMR Tandem Free OperationFR-&R Matc!ing

• 6R-/R matchin! ) the o'ectie is to esta'%ish 76> 'etween /R and 6R

codec t&#es( ) ower rate codec modes ?:@= k'#s5 =: k'#s and @:? k'#s use the same

source encodin! in /R and 6R , 76> can 'e esta'%ished on a common A8S

) 4" an& connection end uses 12:2 k'#s 6R codec mode 76> is not #ossi'%e /Rdoes not su##ort 12:2 k'#s codec mode


a%%ow usin! /R AMR-NB codec

modes at a distant connection

end


a%%ow usin! 6R AMR-NB codec

modes at a %oca% connection

end

MS1 B7S1 ?FR@ B7S2 MS2 ?&R@

MS1 MS2 ?&R@

A8S1( ?:@=5 =:5 @:?5 12:2 A8S2( ?:@=5 =:5 @:?

common A8S( ?:@=5 =:5 @:?

76> can 'e immediate%&started on an& o" the

common codec modes




AMR Tandem Free OperationImmediate Codec T#pe Optimisation

• 4mmediate codec t&#e o#timisation - the o'ectie is to "ind an o#timum

codec t&#e to success"u%%& esta'%ish 76>( ) oca% or distant ce%% chan!es the codec t&#e de#endin! on ca#a'i%ities o" the

ce%% and an MS

o Capabilities of cells Actions ?an MS preferred codec t#pe is AMR-WB@

/ocal cell istant cell

WB-AMR B-AMR WB-AMR B-AMR

1:

&es

&es

&es&es

>#tima% codec t&#e is WB-AMR5 immediate 76> esta'%ishment on WB-AMR2: no

3:

no&es

4mmediate codec t&#e o#timisation %oca% ce%% is switched to NB-AMR5 o#tima% codect&#e is NB-AMR

?: no None - 76> not #ossi'%e

=:

no

&es&es

>#tima% codec t&#e is WB-AMR5 immediate 76> esta'%ishment on WB-AMR: no

@:no

&esNone - 76> not #ossi'%e

.: no




AMR Tandem Free OperationImmediate Codec T#pe Optimisation

• 4" 'oth connection ends do not su##ort AMR-WB and AMR-NB the 76>

can 'e esta'%ished 'etween standard GSM codec modes 6R9*6R9/R, inde#endent "eature

o Capabilities of cells Actions ?an MS preferred codec t#pe is AMR-WB@

/ocal cell istant cell

WB-AMR B-AMR WB-AMR B-AMR

:

no

&es

&es

&es 4mmediate codec t&#e o#timisation distant ce%% is switched to NB-AMR5 o#tima% codect&#e is NB-AMR

1;: no None - 76> not #ossi'%e

11:no

&es >#tima% codec t&#e is NB-AMR5 immediate 76> esta'%ishment on W B-AMR

12: no

None - 76> not #ossi'%e13:

no

&es &es1?: no

1=:no

&es

1: no



3; © Nokia Siemens Networks

Wideband AMR and TFO Operation




Wideband AMR and AMR Tandem Free OperationCall Setup L )eneral

• 8a%% setu# #rocedure starts with to acti,ities(

) Settin! u# a ca%% in a standard wa& with the initia% codec t&#e and mode ) 4n #ara%%e% e+chan!e o" in"ormation B7S7RAJ on actie and su##orted codec t&#es

usin! the 76> #rotoco% to esta'ish the 76> , e+tra de%a&s in the ca%% setu# #rocedureare not si!ni"icant

• 7he ca%% setu# #rocedure is com#%eted(

) 7he ca%% starts in t!e tandem operation

) 7he used codec t&#es at the connection ends are the actie codec t&#es de#endin! on#arameter settin!s(

initialAmrCodecType BS8 o'ect de"ines the #re"erred codec t&#e

Bts(Sp!oad"epTch#ate!o$er BS89B7S o'ect de"ines a %oad thresho%d a'oewhich ha%"-rate channe%s are a%%ocated

initialAmrChannel#ate BS8 o'ect de"ines e+tra re$uirements "or the channe%

a%%ocation




Se%ection o" the channe% codec t&#e and mode as in the

#reious im#%ementation

Wideband AMR and Tandem Free OperationCall Setup L Acti,e Codec T#pe Selection

8a%% setu# #rocedure starts

4s AMR-WB

ena'%ed

What is

initAmrCodecType

4s %oad oer

bts(Sp!oad"epTc

h#ate!o$er thresho%d

What is

initAmrChannel#at

e

4s /R AMR-NB

ena'%ed*6R96R9/R /R AMR-NB6R AMR-NB AMR-WB

&es

no

no

AMR-WB

AMR-NB

&es

6R AMR

An& Rate

no&es

A##%ies to mo'i%e ori!inated ca%%s

on%& "or mo'i%e terminated ca%%s

the MSS #re"erence is o'e&ed




Wideband AMR and Tandem Free OperationTFO Setup L )eneral

• 76> ne!otiation starts i" #reious ste#s are success"u%%& com#%eted(

) *+chan!e o" the in"ormation %oca% 7RAJ distant 7RAJ to a!ree on theo#timum common codec t&#e 'ased on con"i!uration o" the connection ends

) 4n case the common codec t&#e is not "ound(

QPeriodic retr&H #rocedure de"ined '& 3GPP starts to #eriodica%%& re$uest con"i!urationo" the distant connection end to tr& to set u# the 76> as soon as #ossi'%e

TFO is not establis!ed , the ca%% continues with t!e AMR-B codec t#pe AMR-WBca%% is a%wa&s down!raded to AMR-NB with the channe% mode modi"& command , no?intra-cell@ !ando,er is e;ecuted

) 4n case the common codec t&#e is "ound5 'ut is di""erent than the actie codect&#es at the connection ends(

4mmediate codec t&#e o#timisation , the actie codec t&#e is chan!ed to the commoncodec t&#e usin! the channe% mode modi"& command , no ?intra-cell@ !ando,er is

e;ecuted

) 4n case the common codec t&#e at the connection ends is the actie one ,immediate 76> esta'%ishment or 6R-/R matchin!




&es

no4mmediate 76> esta'%ishment

on actie codec t&#e

Wideband AMR and Tandem Free OperationCall Setup L TFO 4stablis!ment

8a%% started in the tandem o#eration

4s actie codec

t&#e the same at a

%oca% and distant

ce%%

4s the o#tima%

codec t&#e the

same as actie

one

4s chan!e o" the

codec t&#e at a

%oca% ce%%

needed

4s common

codec t&#e

aai%a'%e

76> is esta'%ished76> is not esta'%ished

&esno

no

&es

no

&es

4mmediate codec t&#e

o#timisation at a %oca% ce%%

Periodic retr&

Wait unti% immediate

codec t&#e o#timisation

is done at a distant ce%%




no

Wideband AMR and Tandem Free OperationCall Setup L Optimum Codec T#pe Selection for TFO

Se%ection o" the o#timum codec t&#e

AMR-WB is an MS #re"erred codec t&#e

4s AMR-WB used

or su##orted in a

%oca% and distant

ce%%

4s AMR-NB used

or su##orted in a

%oca% and distant

ce%%

7he o#timum codec t&#e is AMR-WB

no&es&es

7he o#timum codec t&#e is AMR-NB7he o#timum codec t&#e not "ound




Wideband AMR and Tandem Free Operation&ando,er L )eneral

• /andoer #rocedure consists o" the "o%%owin! ste#s(

) /> #er"ormed in a FstandardF wa& with the se%ection o" the actie codec t&#e AMR-WB or AMR-NB and rate 6R or /R de#endin! on the ce%% %oad and aai%a'i%it& o" re$uestedchanne% t&#e

) >nce an MS is handed oer to a tar!et ce%%9channe% the 76> is resumed with theminimum de%a& i" codec t&#e does not chan!e

) >therwise5 76> is interru#ted and then restored i" #ossi'%e , the same ste#s are#er"ormed as in case o" the ca%% setu#

) 7ime needed to com#%ete the handoer with or without 76> interru#tion is not e;tended

• Se%ection o" the actie codec t&#e and rate de#ends on #arameter settin!s(

) bts(Sp!oad"epTch#ate!o$er BS89B7S o'ect de"ines a %oad thresho%d a'oe whichha%"-rate channe%s are a%%ocated

) initialAmrChannel#ate BS8 o'ect de"ines e+tra re$uirements "or the channe% a%%ocation

) initialAmrCodecType BS8 o'ect de"ines the #re"erred codec t&#e ) tch#ate%ntraCellH& B7S o'ect de"ines codec rate on the tar!et ce%% "or the intra-ce%% />

) tch#ate%nternalH& BS8 o'ect de"ines codec rate on the tar!et ce%% "or the inter-ce%% ande+terna% inter-BS8 />




/R

An& Rate

AMR-WB&es

no



Wideband AMR and Tandem Free OperationIntra-BSC or Intra-Cell &O L Acti,e Codec T#pe Selection4ntra-BS8 /andoer

Sour

ce in76>

Source

codect&#e

4s

tar!et

AMR-

WBca#a'%e

What is

initAmrChannel#ate

4s /R AMR-NBena'%ed in

tar!et

*6R96R9/R /R AMR-NB6R AMR-NB AMR-WB

&es

no

no

AMR-NB

&es

6R AMR

&es

4s %oad oer

bts(Sp!oad"epTc


What is

tch#ate%nternalHo

6R

no

Was 76> %ost in

the on-!oin!

ca%%

&es

*+terna% />

no

6or intra-ce%% /> check

tch#ate%ntraCellHo

Lo not se%ect AMR-WB 'ack

i" it was once %ost unti%

e+terna% /> is tri!!ered

4nter-BS8 /andoer

Acti,e AMR-WB

>#tiona%( 6R AMR-NB

Acti,e FR AMR-B

>#tiona%( AMR-WB i" su##orted

Acti,e &R AMR-B

>#tiona%( n9a




/R

What is

initAmrChannel#ate

&es

An& Rate

AMR-WB



Wideband AMR and Tandem Free Operation4;ternal ?Inter-BSC@ &O L Acti,e Codec T#pe Selection

*+terna% handoer 4s

tar!et

AMR-

WBca#a'%e

4s /R AMR-NBena'%ed in

tar!et

*6R96R9/R /R AMR-NB6R AMR-NB AMR-WB

no

no

AMR-NB

&es

6R AMR

&es

4s %oad oer

bts(Sp!oad"epTc


What is

tch#ate%nternalHo

6R

no

Acti,e AMR-WB

>#tiona%( 6R AMR-NB

Acti,e FR AMR-B

>#tiona%( AMR-WB

Acti,e &R AMR-B

>#tiona%( n9a

What is MSS

#re"erence codect&#e

A##%ies a%soto the intra-

BS8 />

when AMR-

WB or 76>

has not 'een

used in the

source ce%%




Wideband AMR and Tandem Free Operation&ando,er L Summar#

• When codec t&#e is once chan!ed "rom AMR-WB to AMR-NB due to %oss o" the

76> connection reertin! 'ack to AMR-WB is not #ossi'%e unti%( ) *+terna% /> is tri!!ered

) An MS #assed throu!h a ce%% not su##ortin! AMR-WB and 76>

• 7he ca%% continues with the AMR-WB without 76> i"(

) 76> is re%eased "or some reason durin! an on-!oin! ca%%5 e:!: no 4P* trans#arenc& is %ost5and AMR-NB codec modes are not su##orted in a tar!et ce%%

• 76> 'etween AMR-NB codec modes is re%eased when the tar!et ce%% has anothercodec set than F8on"i!-NB-8ode-1F and the #arameter A8/amrCon'%nHandoers denotes the codec set o" the tar!et ce%%

• AMR-WB and 76> s%i!ht%& increases si!na%%in! and #rocessin! %oad on the A'is9Ater inter"aces

• 2G

W8LMA />s are su##orted in the sam& wa& as e+terna% inter-BS8 />( ) 8a%%s with AMR-WB 8on"i!-WB-8ode-; codec modes and 76>

) 76> cannot 'e esta'%ished with AMR-NB codec modes5 'ecause the 8on"i!-NB-8ode-1?:@= k'#s5 =: k'#s5 @:? k'#s and 12:2 k'#s codec modes are not com#ati'%e with theW8LMA AMR-NB codec modes ?:@= k'#s5 =: k'#s5 @:= k'#s and 12:2 k'#s



?; © Nokia Siemens Networks

Wideband AMR and Tandem Free Operation

• /> P8 R Cua%it& thresho%ds "or *6R96R9/R ca%%s are a%so used "or AMR-WB ca%%s see data'ase #arameters

• 6or the 46/ and 4J> "eatures the /> 894 thresho%ds "or AMR-WB ca%%s arethe same as "or *6R96R9/R ca%%s

• When BS8 receies a re$uest to esta'%ish a L7M ca%%(

) 4ntra-ce%% /> is #er"ormed to a #acket territor& 'oth 8S and PS #arts

) AMR-WB is down!raded to an AMR-NB codec mode i" #ossi'%e otherwise

AMR-WB is sti%% in use ) 76> is a%wa&s interru#ted

AMR-WB ,s &O and +CAMR-WB ,s &O and +C

T!res!oldsT!res!olds

AMR-WB and TFO ,s TMAMR-WB and TFO ,s TM



?1 © Nokia Siemens Networks

e and Modified BSS +arameters

Wid b d AMR d AMR T d F O ti




Wideband AMR and AMR Tandem Free Operatione +arameters

B7S7he #arameter de"ines the thresho%d "or switchin! "rom the codec

mode 3 the hi!hest 'it rate to the codec mode 2 the second %owest

'it rate:

ote amrWbFrThreshold2 must 'e !reater than amrWbFrThreshold1:

; ::: 3 ; ::: 31:= dB5 ste# 1 ;:= dB5

de"au%t( . ? dB

amrWbFrThreshold2

A6R71

7he #arameter de"ines the thresho%d "or switchin! "rom the codec

mode 2 the second %owest 'it rate to the codec mode 1 the %owest

'it rate:ote amrWbFrThreshold1 must 'e e$ua% to or sma%%er than

amrWbFrThreshold2 :

escription

B7S; ::: 3 ; ::: 31:= dB5 ste# 1 ;:= dB5

de"au%t( . ? dB

amrWbFrThreshold1

A6R71

ObNect

name

Range and stepH default ,alue+arameter name

?abbre,iation@

7he #arameter de"ines i" the AMR-WB codec mode set is ena'%ed ordisa'%ed "eature actiated or deactiated

B7S; ::: 15 ste# 15 de"au%t( ;

; ) AMR-WB is disa'%ed

1 ) AMR-WB is ena'%ed

amrWbFrCodecModeSet

A8MS





initialAmrCodecType

4A87

Wideband AMR and AMR Tandem Free Operatione +arameters

B7S7he #arameter5 to!ether with amrWbFrThreshold2 5 de"ines the

thresho%d "or switchin! "rom the codec mode 2 the second %owest 'itrate to the codec mode 3 the hi!hest 'it rate:

ote amrWbFrThreshold2 T amrWbFrHysteresis2 must 'e !reaterthan amrWbFrThreshold1 T amrWbFrHysteresis1 :

; to 1= ; to @:= dB5 ste# 1 ;:= dB5

de"au%t( ? 2 dB

amrWbFrHysteresis2

A6R/2

7he #arameter5 to!ether with amrWbFrThreshold15 de"ines thethresho%d "or switchin! "rom the codec mode 1 the %owest 'it rate tothe codec mode 2 the second %owest 'it rate:

ote amrWbFrThreshold1 T amrWbFrHysteresis1 must 'e e$ua% to orsma%%er than amrWbFrThreshold1 T amrWbFrHysteresis1 :

escription

B7S

B7S; to 1= ; to @:= dB5 ste# 1 ;:= dB5

de"au%t( ? 2 dB

amrWbFrHysteresis1

A6R/1

ObNect

name


?abbre,iation@

7he #arameter de"ines the order o" #re"erence 'etween the AMR-WB

and AMR-NB codec modes: 7he third a%ue is the MSS codec %ist:

Le"au%t a%ue means that AMR-NB is se%ected when a ca%% is

esta'%ished:

; O 25 ste# 15 de"au%t( ;

; ) AMR-NB has !reater #riorit&

1 ) AMR-WB has !reater #riorit&

2 ) o'e& codec %ist !ien '& MSS




?? © Nokia Siemens Networks

Wideband AMR and AMR Tandem Free OperationModified +arametersD

B7S7he #arameter de"ines the u##er %imit "or the #ercenta!e o" "ree "u%%

rate resources: 6u%% rate 78/ channe%s are a%%ocated when the num'er

o" "ree "u%% rate resources e+ceeds the a%ue o" the #arameter:

; ::: 1;; I5 ste# 15 no de"au%t a%uebtsSp!oad"epTch#ate)pper

6RJ

BS87he #arameter de"ines the u##er %imit "or the #ercenta!e o" "ree "u%%

rate resources: 6u%% rate 78/ channe%s are a%%ocated when the num'er

o" "ree "u%% rate resources e+ceeds the a%ue o" the #arameter:

; ::: 1;; I5 ste# 15 no de"au%t a%uebts!oad"epTch#ate)pper

/RJ

7he #arameter de"ines the %ower %imit "or the #ercenta!e o" "ree "u%% rate

resources: 6u%% rate 78/ channe%s are a%%ocated unti% the num'er o" "ree

"u%% rate resources is reduced 'e%ow the a%ue o" the #arameter: 7he ha%"

rate resources are then a%%ocated:

7he #arameter de"ines the %ower %imit "or the #ercenta!e o" "ree "u%%

rate resources: 6u%% rate 78/ channe%s are a%%ocated unti% the num'er

o" "ree "u%% rate resources is reduced 'e%ow the a%ue o" the #arameter:

7he ha%" rate resources are then a%%ocated:

escription

B7S; ::: 1;; I5 ste# 15 no de"au%t a%uebtsSp!oad"epTch#ate!o

$er

6R

BS8; ::: 1;; I5 ste# 15 no de"au%t a%uebts!oad"epTch#ate!o$er

/R

ObNect

name


?abbre,iation@

D - in BSS1? the modi"ied #arameters re"er to AMR-WB ca%%s5 too




?= © Nokia Siemens Networks


BS87he #arameter de"ines the minimum acce#ta'%e carrier-to-noise ratio"or "u%% rate AMR-NB and "u%% rate AMR-WB s#eech connections:

; O 3 dB5 ste# 15 de"au%t( @ dBd'caAmrFrConnection*so't Bloc+in,Cn

SB8NA6

B7SLe"ines the ma+imum a%ue o" the radio %ink counter e+#ressed in SA88/ "rames?.;ms "or the "u%% rate AMR-NB and "u%% rate AMR-WB s#eech connections:

? ::: ? SA88/5 ste# ? SA88/5de"au%t( 2; SA88/

radio!in+Timeo-tAmr

AR7

BS87he #arameter de"ines the minimum acce#ta'%e 894 a%ue "or "u%% rate AMR-NB and "u%% rate AMR-WB s#eech connections:

ote 7he #arameter a%ue must 'e e$ua% to or sma%%er than the tar!et894 d'caAmrFrConnection*ciTar,et : Ua%ue -2; dB means so"t '%ockin!is disa'%ed:

-2; :: ?3 dB5 ste# 1dB5 de"au%t( -2;

dB

d'caAmrFrConnection*so't

Bloc+in,Ci SBA6

7he #arameter de"ines the tar!et 894 a%ue "or "u%% rate AMR-NB and "u%%rate AMR-WB s#eech connections:

ote 7he #arameter a%ue must 'e e$ua% to or !reater than theminimum acce#ta'%e 894 d'caAmrFrConnection*so'tBloc+in,Ci

escription

BS8; :: 3 dB5 ste# 1dB5 de"au%t( 12 dBd'caAmrFrConnection*ciT ar,et

84A6

ObNect

nameRange and stepH default ,alue+arameter name

?abbre,iation@







BS87he #arameter de"ines the initia% channe%rate at ca%% setu# and durin! a handoer "or

AMR-NB and AMR-WB ca%%s:

1 O 25 ste# 15 de"au%t( 1

1 ) an& rate5 there are not e+tra re$uirements and the se%ectedchanne% rate is de"ined '& takin! into account the current%& usedin"ormation on channe% a%%ocation5

2 ) AMR 6R is a%%ocated re!ard%ess the a%ues o" the current%& usedin"ormation on channe% a%%ocation

initAmrChannel#ate

4A8

B7SLe"ines the channe% rate a"ter the intra-ce%%/> takes #%ace: 7he #arameter can return

"u%%-rate 6R or ha%"-rate /R:

; O ?5 ste# 15 de"au%t( ;

; ) o'e& the BS8 %ee% #arameter tch#ate%nternalH&5

1 ::: ? ) see the #arameter tch#ate%nternalHo.

tch#ate%ntraCellHo

7R4/

BS8Le"ines channe% rate a"ter the inter-ce%% ore+terna% /> takes #%ace: 7he #arametercan return "u%%-rate 6R or ha%"-rate /R:

1 O =5 ste# 15 de"au%t( 1

1 ) the 'est candidate ce%% in which the same channe% t&#e 6R or /R and the

same s#eech ersion can 'e used is se%ected as a tar!et ce%% i" such the ce%% does

not e+ist another tar!et ce%% is searched ) at "irst5 with other s#eech ersions5 then

with other channe% t&#es

2 ) the same as 15 'ut at a time o" a data connection the channe% t&#e used in the

source ce%% is not taken into account in the se%ection o" the 'est candidate ce%%

3 ) chan!es o" the channe% t&#e 6R or /R are denied

? ) the 'est candidate ce%% in which the same channe% t&#e 6R or /R and thesame s#eech ersion as re$uested '& MS8 in the initia% radio resource re$uest is

se%ected

= ) the 'est candidate ce%% is se%ected ) the channe% t&#e and s#eech ersion used

in the source ce%% is not taken into account

tch#ate%nternalHo

/R4

escription ObNect

nameRange and stepH default ,alue+arameter name

?abbre,iation@





?@ © Nokia Siemens Networks


/>87he #arameters com#are the aera!ed a%ues o" si!na% $ua%it& "rom u#%inkmeasurements "or tri!!erin! the /> #rocess

thresholdQ-al)plin+#/ Q-al

ho7CJ%R+Cua%

/>87he #arameters com#are the aera!ed a%ues o" si!na% $ua%it& "romdown%ink measurements "or tri!!erin! the /> #rocessE ;:2I ;5 ;:2I - ;:?I 15 ;:?I

- ;:.I 25 ;:.I - 1:I 35 1:I -

3:2I ?5 3:2I - :?I =5 :?I -12:.I 5 12:.I @5 de"au%t( ?

thresholdQ-al"o$nlin+ #/Q-al

ho7CL%R+Cua%

BS87he #arameter de"ines the AMR %ink ada#tation A mode within the BSS:4n BSS1? the #arameter a%so re"ers to AMR-WB: TFO cannot operateit! t!e slo /A 8> t!e parameter must be set to FA/S4

; ::: 15 ste# 15 de"au%t( ;

; ) "ast A is ena'%ed

1 ) s%ow A is ena'%ed

slo$Amr!a0nabled

SA

BS87he #arameter de"ines when a B7S commands an MS to re#eat the SA88/'%ock:

4" the #arameter is set to 15 decodin! "ai%ure o" the %atest SA88/ '%ocktri!!ers transmission o" the ne+t SA88/ '%ock:

4" the #arameter has a%ue N , V25 35 ? :: 1=5 decodin! "ai%ure o" 2 SA88/'%ocks out o" N #recedin! SA88/ '%ocks tri!!ers the ne+t transmission: 7herenewed transmissions are done as %on! as the decodin! o" 2 SA88/ '%ocksout o" N #recedin! '%ocks "ai%s:

7he #arameter is re%ated to the ro'ust AMR si!na%%in!:

1 :::1= "rames5 ste# 1 "rame5

de"au%t( ?

sacch#epeatWindo$

SRW

escription ObNect

name


?abbre,iation@





?. © Nokia Siemens Networks


BS87he #arameter de"ines how much %ower down%ink 894 a%ues can 'e used "orthe SA48 ca%%s com#ared to the non-SA48 ca%%s in the L68A 78/ a%%ocation:7he aai%a'i%it& o" the #arameter re$uires the Sin!%e Antenna 4nter"erence8ance%%ation so"tware: 7he o""set is added to the 894 tar!ets and so"t '%ockin!894 %imits:

;O3 dB ste#( 1dB5 de"au%t( 2 dB

saic"lC%&''set

S84>

P>87he #arameters com#are the aera!ed a%ues o" si!na% $ua%it& "rom u#%inkmeasurements "or tri!!erin! the #ower contro% #rocess: RCJA(thresho%d %ee% "or the u#%ink #ower increase:

pc!o$erThresholdsQ-al)plin+#/Q-al

#c7Cua%J%R+Cua%

P>87he #arameters com#are the aera!ed a%ues o" si!na% $ua%it& u#%inkmeasurements "or tri!!erin! the #ower contro% #rocess: RCJA(thresho%d %ee% "or the down%ink #ower reduction:

pc)pperThresholdsQ-al"o$nlin+#/Q-al

#cJ7Cua%J%R+Cua%

P>87he #arameters com#are the aera!ed a%ues o" si!na% $ua%it& u#%ink

measurements "or tri!!erin! the #ower contro% #rocess: RCJA(thresho%d %ee% "or the u#%ink #ower reduction:

pc)pperThresholdsQ-a

l)plin+#/Q-al #cJ7Cua%J%R+Cua%

P>87he #arameters com#are the aera!ed a%ues o" si!na% $ua%it& "rom

down%ink measurements "or tri!!erin! the #ower contro% #rocess: RCJA(thresho%d %ee% "or the down%ink #ower increase:

E ;:2I ;5 ;:2I - ;:?I 15 ;:?I

- ;:.I 25 ;:.I - 1:I 35 1:I -

3:2I ?5 3:2I - :?I =5 :?I -

12:.I 5 12:.I @5 de"au%t( 3

pc!o$erThresholdsQ-al"o$nlin+#/Q-al

#c7Cua%L%R+Cua%

escription ObNect

name


?abbre,iation@





+erformance Measurements

Wideband AMR and AMR Tandem Free Operation



=; © Nokia Siemens Networks

Wideband AMR and AMR Tandem Free Operatione Counters ?$@

7he counter counts the num'er o" success"u% AMR-WB 78/ sei0ures:

Trigger e,ent

When a 78/ a%%ocated "or a s#eech is re%eased and the s#eech codec ersion = AMR-WB is or was%ater switched to AMR-NB in use durin! a ca%%:

JJ$.3: TC&S4IR4SFORAMR-WB

1 7ra""ic Measurement

7he counter counts the num'er o" 78/ re$uests "or AMR-WB-ca%%s:

Trigger e,ent

J#dated when a BS8 receies a 78/ re$uest in a ca%% setu# or /> attem#t and the s#eech codec ersion= AMR-WB is the most #re"erred one: 7he counter ;;1;2 78/8AR*C is not u#dated a%on! withthis counter in case o" a ca%% setu#:

JJ$.3. TC&R4=4STSFORAMR-WB


7he counter counts the time o" AMR-WB ca%%s in ce%%s in seconds: A BS8 kee#s record a'out the time thes#eech codec ersion = AMR-WB is used:

Trigger e,ent

7he time is u#dated in the counter when BS8 receies the 8/ANN* M>L* M>L46X A8< messa!ewhen AMR-WB chan!es to another codec mode or the channe% is re%eased:

JJ$.3$ TIM4OFAMR-WBCA//S


escriptionCounter name




=1 © Nokia Siemens Networks

Wideband AMR and AMR Tandem Free Operation+erformance Measurements

7he counter is u#dated when a 78/ transaction ends 'ecause o" a trans-coder "ai%ure durin! a ca%%attem#t or handoer and the s#eech codec ersion = AMR-WB is in use:

Trigger e,ent

7he counter is u#dated when a 78/ transaction ends 'ecause o" a trans-coder "ai%ure durin! a ca%%attem#t or /> and the s#eech codec ersion = AMR-WB is in use:

ote

7he counter is u#dated to!ether with one o" the trans-coder "ai%ure counters( ;;1;2 78/7R6A45;;1;3; 78/7R6A4S>JR8* or ;;1;31 78/7R6A47ARG*7:

JJ$.39 TC&444TRASCO4RFAI/R4CO4C3


7he counter counts the num'er o" success"u% codec t&#e chan!es "rom AMR-WB to AMR-NB:

Trigger e,ent

J#dated when the 8/ANN* M>L* M>L46X A8< messa!e is receied '& a BS8 and the codec t&#e

chan!e is success"u%:

JJ$.3% CO4CTP+4C&A)4FROMAMR-WBTOAMRSCC4SSF/


7he counter counts the num'er o" success"u% codec t&#e chan!es "rom AMR-NB to AMR-WB:

Trigger e,ent

J#dated when the 8/ANN* M>L* M>L46X A8< messa!e is receied '& a BS8 and the codec t&#echan!e is success"u%:

JJ$.33 CO4CTP+4C&A)4FROMAMRTOAMR-WBSCC4SSF/







Wideband AMR and AMR Tandem Free OperationModified Counters

4denti"ication o" the used codec t&#e:

Trigger e,ent

Lurin! a handoer and when a ca%% is c%eared:

J11JJ. CO4CTP+4

@@ 6*R Measurement

7he %ast used codec mode in down%ink direction when the 78/ dro# occurred:

Trigger e,ent

When a 78/ dro# occurred 'etween the messa!es ASS4GNM*N7 8>MP*7* "rom a B7S andL4S8>NN*87 "rom MS9MS8 or 'etween the messa!es ASS4GNM*N7 8>MP*7* "rom a B7S and8*AR 8>MMANL "rom an MS8:

ote

4n "act this is not a counter5 'ut an identi"ication o" the used codec mode when a dro# occured:

J.KJ$9 //ASTS4BITRAT4

2 Lro# 8a%% Breakdown >'seration

7he %ast used codec mode in u#%ink direction when the 78/ dro# occurred:

Trigger e,ent

When a 78/ dro# occurred 'etween the messa!es ASS4GNM*N7 8>MP*7* "rom a B7S andL4S8>NN*87 "rom MS9MS8 or 'etween the messa!es ASS4GNM*N7 8>MP*7* "rom a B7S and8*AR 8>MMANL "rom an MS8:

ote

4n "act this is not a counter5 'ut an identi"ication o" the used codec mode when a dro# occurred:

J.KJ$3 //ASTS4BITRAT4

2 Lro# 8a%% Breakdown >'seration

T!e abo,e listed counters !a,e t!eir ranges e;tended to also include AMR-WB codec modes %%J kbpsH ((3 kbps and $.%3 kbps






Wideband AMR and AMR Tandem Free OperationModified counters

7he measurement counters are u#dated "or AMR-NB 6R codec modes when an AMR-WB 6R codec mode is in use: New counters "or AMR-WB 6R codec modes are notneeded in these measurements 'ecause air inter"ace channe% encodin! and here'&the 894 conditions remain the same 'etween AMR-NB 6R and AMR-WB 6R:

All AMR-B FR Counters

1;; L68A Measurement

All AMR-B FR Counters

1;. L68A SA48 Measurement


7he counters #roide detai%ed in"ormation on the AMR codec mode used at handoera%ues( ? O 1@: 32 ca%%s can 'e o'sered at a time and re#orted to a B7S: Se#aratecounters are a##%ied to u#%ink and down%ink: 6rom BSS1? the counters are e+tendedto inc%ude AMR-WB codec modes( %%J kbps ?.J@H ((3 ?$K@ kbps and $:%3 kbps?$(@

AMR/$ Q AMR/:.

21 Radio Measurement Re#ort

AMR/$ Q AMR/:.

21 Radio Measurement Re#ort



=? © Nokia Siemens Networks

Feature Impact Anal#sis erification




== © Nokia Siemens Networks

Wideband AMR and AMR Tandem Free OperationFeature Impact Anal#sis erification

Counters

;;12=1 74M*>6AMRWB8AS( the tota% time in seconds when AMR-WB ca%%s are actie in a ce%%

;;12=2 78/R*CJ*S7S6>RAMRWB( the num'er o" 78/re$uests "or an AMR-WB ca%%

;;12=3 78/S*4YJR*S6>RAMRWB( the num'er o" success"u% AMR-WB 78/ sei0ures when the AMR-WB s#eech codec mode is in use

*+Is

Share o" AMR-WB ca%%s s: a%% ca%%s and AMR-NB ca%%s AMR-WB usa!e(

AMR-WB ca%% setu# success ratio accessi'i%it&(

7he "eature is actiated(

• At the ear%& sta!e o" the "eatureim#%ementation the #enetration o" AMR-WBca#a'%e termina%s is e+#ected to 'e %ow ,sma%% share o" wide-'and ca%%s s: narrow-'andca%%s

• Growin! #enetration o" AMR-WB ca#a'%etermina%s is e+#ected with the 'etter aai%a'i%it&o" AMR-WB ca#a'%e termina%s , !ig!er shareo" wide-'and ca%%s s: narrow-'and ca%%s

&o to measureFeature impact




= © Nokia Siemens Networks


Counters

;;12== SJ888/ANG*AMR7>AMRWB( the num'er o" success"u%codec t&#e chan!es "rom AMR to AMR-WB

;;12= SJ888/ANG*AMRWB7>AMR( the num'er o" success"u%codec t&#e chan!es "rom AMR-WB to AMR

*+Is

Aera!e %en!th o" the #hase without codec t&#e chan!e(

Aera!e %en!th o" the wide-'and #hase s: aera!e %en!th o" the narrow-'and #hase(

Switchin! 'etween AMR-NB and AMR-WBcodec t&#es to success"u%%&esta'%ish9maintain 76> at ca%% setu#9a"ter/>

Lown!rade o" wide-'and ca%%s to narrow-'and mode i" one o" connection ends doesnot su##ort AMR-WB codec modes

7oo "re$uent switchin! 'etween AMR-WBand AMR-NB codec modes is anno&in! "or asu'scri'er , it is desired that a sin!%e wide-'and or narrow-'and #hase o" a ca%% is as%on! as #ossi'%e idea%%&( the ca%% "rom the'e!innin! to the end is maintained withoutchan!in! a codec t&#e


WB AMRTO AMRCHANGE SUCC AMRTOWB AMRCHANGE SUCC

CALLS AMROF TIME CALLS WB AMROF TIME

schangetypecodecno phase Avg

_ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _

][ _ _ _ _ _

+

+=

=




=@ © Nokia Siemens Networks


Feature impact &o to measure

Potentia% ca%% dro#s when AMR-WB is in use Counters

;2;1? LAS7JS*LB47RA7*( 7he %ast used 'it-rate in down%inkdirection when a 78/ dro# occurred ) su'-counters( J;$. 12:= k'#s5J;$: .:.= k'#s and J;$9 :; k'#s

;2;1= JAS7JS*LB47RA7*( 7he %ast used 'it-rate in u#%inkdirection when a 78/ dro# occurred ) su'-counters( J;$. 12:= k'#s5J;$: .:.= k'#s and J;$9 :; k'#s




=. © Nokia Siemens Networks


*+Is

8ASS1B>JNLARX o" F@@ 6*R MeasurementF set to5 e:!: 2= 6*Rthresho%d set to 2:=I - a%% sam#%es "a%%in! 'e%ow the thresho%d denotes !oods#eech $ua%it&

Rea% 6*R 'ased $ua%it& in down%ink *MR ca#a'%e termina%s on%&(

*stimated 6*R 'ased $ua%it& in down%ink(

6*R 'ased $ua%it& in u#%ink5 e:!:(

7he 6*R 6rame *rasure Rate mi!ht 'ede!raded in 'ad 894 conditions5 'ecausethe s#eech ca%% once esta'%ished with

AMR-WB ma& neer 'e down!raded to AMR-NB and AMR-WB does not o""ersu""icient%& ro'ust codec modes5 e:!:com#ara'%e to AMR-NB ?:@= k'#s5 to co#ewith seere radio conditions

7he a'oe <P4s are ca%cu%ated "or the JS*L8>L*87XP* e$ua% to AMR-WB codec mode( :; k'#s5 .:.= k'#s or 12:= k'#s


IMS /inks



IMS /inks

• Wide'and AMR P%annin! !uide%ine

htt#s(99sharenet-ims:inside:nokiasiemensnetworks:com9>#en9?1?=?;3.• BSS S1? P3 ena'%in! SUJ session(

htt#s(99sharenet-ims:inside:nokiasiemensnetworks:com9>#en9?;1@3.;

• RG1; BSS "or Network P%anners(htt#s(99sharenet-ims:inside:nokiasiemensnetworks:com9Lown%oad9?;.==3313

https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/414540389


https://sharenet-ims.inside.nokiasiemensnetworks.com/Download/408553313

https://sharenet-ims.inside.nokiasiemensnetworks.com/Download/408553313



Documents

3 RG10 Wideband AMR and TFO v2