09 Dual Band Features and Multi-BCF MO v3.1

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Dual Band Features

The inforation in this do!uent is su"#e!t to !han$e without noti!e and des!ri"es only the%rodu!t defined in the introdu!tion of this do!uentation& This do!uent is intended for theuse of Nokia Networks' !ustoers only for the %ur%oses of the a$reeent under whi!h thedo!uent is su"itted and no %art of it ay "e re%rodu!ed or transitted in any for oreans without the %rior written %erission of Nokia Networks& The do!uent has "een

%re%ared to "e used "y %rofessional and %ro%erly trained %ersonnel and the !ustoerassues full res%onsi"ility when usin$ it& Nokia Networks wel!oes !ustoer !oents as%art of the %ro!ess of !ontinuous deelo%ent and i%roeent of the do!uentation&

The inforation or stateents $ien in this do!uent !on!ernin$ the suita"ility !a%a!ity or%erforan!e of the entioned hardware or software %rodu!ts !annot "e !onsidered "indin$"ut shall "e defined in the a$reeent ade "etween Nokia Networks and the !ustoer&*oweer Nokia Networks has ade all reasona"le efforts to ensure that the instru!tions!ontained in the do!uent are ade+uate and free of aterial errors and oissions& NokiaNetworks will if ne!essary e,%lain issues whi!h ay not "e !oered "y the do!uent&

Nokia Networks' lia"ility for any errors in the do!uent is liited to the do!uentary!orre!tion of errors& Nokia Networks -.// NOT B0 0ON.B/0 .N 4N 0V0NT FO0O .N T*. DO6780NT O FO 4N D48490 .N6.D0NT4/ O6ON0:70NT.4/ (.N6/7D.N9 8ON0T4 /O0) that i$ht arise fro the use of thisdo!uent or the inforation in it&

This do!uent and the %rodu!t it des!ri"es are !onsidered %rote!ted "y !o%yri$ht a!!ordin$to the a%%li!a"le laws&

NO;.4 lo$o is a re$istered tradeark of Nokia 6or%oration&

Other %rodu!t naes entioned in this do!uent ay "e tradearks of their res%e!tie!o%anies and they are entioned for identifi!ation %ur%oses only&

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Dual Band Features

Contents

9 Dual Band eatures and !ulti"BC#####################################################$

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Dual Band Features

9 Dual Band eatures and !ulti"BC

%%#% !odule &'ecties

4t the end of the odule the %arti!i%ant will "e a"le to>

0,%lain how the !a%a!ity of a !ellular network !an "e e,%anded "y

additional fre+uen!y "ands

Des!ri"e shortly the ar!hite!ture of a dual "and network

0,%lain in detail the dire!t a!!ess to desired layer ? "and e!hanis

9ie an oeriew of the !oon B66* and B6F feature

0,%lain the !on!e%t of se$ents

Dis!uss the %araeters for !oon B66* and B6F

%%#2 *ntroduction

%%#2#% re+uenc, Bands

Nowadays the resour!es offered "y 98 @


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7sually in a dual "and network there are se%arate 98 @


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NOKIA BSSP AR / 10.05.2004

Capacity Expansion(!ri Band)

Dual Bandeatures

890-915 MHz 935-960 MHz

Classical GSM 900 ($%GSM) + extended GSM 900 (E%GSM)

P a( a( us$ &( s$a%a$ ,$sa(($s "* " a(s ,a((" $ us$ &( $ sa$ ,$

880-890

925-935

PP

Fi$& 11C2> 6a%a!ity e,%ansion (tri "and)

%%#2#2 Dual Band Networ- &peration

4 dual "and !ell has nei$h"ours of another fre+uen!y "and& .f the%araeter dualBandCell (DBC)(./0)(1N)(") set to1 ad#a!ent !ellshain$ a B66* of another fre+uen!y "and than the serin$ !ell will "etaken into a!!ount for handoer& -ith the %araetermultiCellBand3eporting (!B3)(./0)(4##)(%) 8s in dedi!ated ode!an "e for!ed to re%ort nei$h"ours of another "and&

For dual "and networks 8s hae to indi!ate their "and !a%a"ilitiesdurin$ !all setu%& The %araeter earl,.ending*ndication (/.*)(./0)(1N)(1)has to "e set to1 in dual "andnetworks& .f set to y 8 will $etthis in ys info and they will autonoously indi!ate their "and

!a%a"ilities durin$ !all setu% "efore a T6* is !hosen&

4 dual "and network !an "e o%erated also with e+ui%ent of seeralendors& .n this !ase the 86 ust su%%ort the ulti "and !a%a"ility ofthe 8 as otherwise an intra B6 handoer "etween NokiaT8B andanother one would not "e %ossi"le& Dual "and network o%eration issuariEed "yFi$& 11 C3&

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Capacity Expansion(Dual Band &et'or peration)

6ando)er for multi )endor e+uipment

N"&a +SM 900 -N"&a+SM 900N"&a +SM 900 -N"&a+SM 1800N"&a ,$ -"$% +SM 900 ,$:,"(%"$ ! MS;

944 %744

Dual 'and !.

944

No-ia B..

!.C

other B..

944

D8 244

C!5

Dual Bandeatures

$ara#eter

dualBand6ell 6a%a!ity e,%ansion (dual "and network o%eration)

%%# Direct ccess to Desired :a,er Band

%%##% *dea

7sually in a dual "and network an idle 8 !a%s on a 98 @


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a!!ess in an .7O network whi!h is tri$$ered "y a hi$h re!eie leel of asu%er reuse !ell&


900 Macro900 Macro

900 Micro900 Micro

18001800

!C* allocation durin call set up (SDCC* ,ando-er)

*i,est$riority

.nd priority .nd priority

/rd priority

MS ca#ped on900 #icrocell

MS ca#ped on900 #acrocell

900 Micro900 Micro

18001800

*i,est$riority

Dual Bandeatures

DDB

(2dea)

Fi$& 11C> D4D/?B (idea)

%%##2 ;arameters

First of all it ust "e indi!ated whether a !ell shall "e used as tar$et atall& This is done "y settin$ the %araeter dadl'TargetCell (DD:)(D


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cell load 3100 4

Btsloadt,res,old5cell load 5100 4

Cell load 5

6tsloadt,res,old

Dual Bandeatures

DDB(!rierin)

Speci7ic para#eter

dadl"Tar$et6el 38:/=>NC/:: (n)of the ad#a!ent !elln ust e,!eed the threshold ho:eel?m'rella (n) as des!ri"ed "ye+uation 1" in !ha%ter *andoer 6ontrol and 4d#a!en!ies se!tion9eneral trate$y& Thus the D4D/?B handoer is %erfored +uite siilaras an u"rella handoer (see Fi$& 11 C)&

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DDB(Execution)

0stiation of le)els of ad#a!ent D4D/?B tar$et !ells

ankin$ of ad#a!ent !ells as usual on the "asis ofho;riorit,:e)el ( ho:oadactor( 'ts:oadThreshold

6he!k of ad#a!ent !ells with !ondition4VG/0VGN60// H ho:e)el?m'rella

4d#a!ent D4D/?B !ell with suffi!ient le)el

5es No

D4D/?B hando)er 2ee ne,t slide

$ "a $@,$$s s"a%$s"u%&(' ,a s$ uu (" 100 >

Dual Bandeatures

Fi$& 11C> D4D/?B (e,e!ution)

The tiin$ for dire!t a!!ess to desired layer ? "and is the sae as fordire!ted retry !ontrolled "y the sae %araetersminTime:imitDirected3etr,and ma@Time:imitDirected3etr,(see!ha%ter *andoer 6ontrol and 4d#a!en!ies se!tion .%eratie*andoer)& .f the handoer fails or if there is no relia"le tar$et !ell aT6* is allo!ated fro the serin$ !ell& .f no T6* is aaila"le dire!tedretry is tried whi!h !an "e !o"ined with +ueuin$ (see Fi$& 11 C=)&

1


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&ei,6our cell reportin

DDBtriered

Min!i#ei#itD

DDB ,ando-ersuccess

DDB ,ando-er7ailure

DDB ,ando-ercandidate selection 7ails

!C* allocated 7ro# DDBtaret cell

Max!i#ei#itD

!C* allocation 7ro#ser-in cell

Ser-in cell in real !C* conestionD atte#pt 'it, or 'it,out "ueuin

Maxi#u# allo'ed ti#e 7orDDB ,ando-er expires

!i#e

Dual Bandeatures

DDB(!i#in)

!C* allocation 7ro#ser-in cell

Ser-in cell in real !C* conestionD atte#pt 'it, or 'it,out "ueuin

DDB uses sa#e

ti#ers as directed retry

Fi$& 11C=> D4D/?B (tiin$)

%%#$ Common BCC6 and BC

%%#$#% Common BCC6

The "asi! idea "ehind the 6oon B66* is to in!lude the 98 @


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one "and only whi!h is useful in the .7O J Dual Band !ase in order to%roide ore relia"le 6?. alues& 6oon B66* in only one of the "andof o%eration when resour!es a!ross all "ands is !oClo!ated andsyn!hronised&

The !ells !an naturally "e allo!ated as se%arate !ells as in the !urrentTri Band solution&

The ain adanta$es of the !oon B66* fun!tionality are>

1& .%roed Trunkin$ 9ain

2& 7se of si$nallin$ !hannels is o%tiised "y sharin$ the "etween"ands

3& Ti$hter reuse of all 981A


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Dual Band Features

"and !ell (and any 09s as one B66* fre+uen!y "and network) as ithas no knowled$e of the other fre+uen!y "ands in a 09 (due to these"ands hain$ no B66*)& The 8 $ains knowle$de of nei$h"orin$09s "y easurin$ their serin$ layer's B66* fre+uen!y&

The followin$ fre+uen!y "and !o"inations are su%%orted for !oonB66*>

98@


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0en if the !a%a"ilities of an a!!essin$ 8 were known already in the"e$innin$ there would "e no way to define the usa"ility of the nonCB66*layer of the se$ent& This is "e!ause the 8 starts sendin$easureent re%orts only after it has oed to a dedi!ated !hannel&

et another thin$ !allin$ for D66* allo!ation only on B66* fre+uen!y"and is the need to aintain the %ossi"ility for usin$ 3 fe+uen!ies infre+uen!y ho%%in$& This !oes true when we hae indiidual 6ell4llo!ation and 8o"ile 4llo!ation lists for ea!h fre+uen!y "and& .n the !allsetu% %hase we hae to in!lude only B66* fre+uen!ies on the 6ell4llo!ation list that is sent in yste .nforation ty%e 1 essa$e on theB66*& This allows allo!atin$ of an initial D66* only on the B66*fre+uen!y layer& /ater when the !all is transferred to a !hannel ofanother fre+uen!y "and the !orres%ondin$ 64 and 84 lists are $ien tothe 8 in either anASSIGNMENT COMMANDor a HANDOVERCOMMAND&

NOKIA BSSPAR/ 11.2006 C3

1. S


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4 BT is a $rou% of siilar Ts& BT ust !onsist of Ts of thesae fre+uen!y "and (6oon B66*) and Ts of the sae "asestation site ty%e (8ulti B6F)&

The %ossi"ility to use the se$ent stru!ture will not "e restri!ted to the6oon B66* and 8ulti B6F features "ut will "e an o%tion of its own&4n o%erator !an for e,a%le !reate ulti%le ho%%in$ $rou%s in a !ell "y$atherin$ Ts of one ho%%in$ $rou% into one BT and hae seeralsu!h BTs in a se$ent&

-ith the !oon B66* feature there are !ou%le of %ossi"le fre+uen!y"ands in a 09> riary 98@


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Dual Band Features

terinals& %e!ifi!ations state that the 098@


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Dual Band Features


BTS-1, BCCH-1

- BB hopping- 6 TRXsBTS-5, BCCH-5- RF hopping- 6 freq f!-f6- " TRXs

BTS-3, BCCH-3- BB hopping- 6 TRXsBTS-4, BCCH-4- RF hopping- 6 freq f!-f6- " TRXs BTS-2, BCCH-2

- BB hopping- 6 TRXsBTS-6, BCCH-6- RF hopping- 6 freq f!-f6- " TRXs

Multi BC:; exa#ple

UltraSite8+8+8 con7iurationin S9

/0VGD/ I NonB##h$%&erOffse'HL

S(perRe(seGoo)R*$e+Thresho,).n 1< i%leentation the latest re%orted si$nal leel was used in theforula sin!e 1

/0VGD/ I NonB##h$%&erOffse'HLS(perRe(seGoo)R*$e+Thresho,)

in!e 1


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Dual Band Features

.f the D66* has "een allo!ated fro a nonCB66* fre+uen!y BT then/0VGD/ is the latest B66* easureent re%ort&

.n ea!h !andidate se$ent of an inter !ell handoer the usa"ility of

B66* fre+uen!y "and resour!es is de!ided usin$ the aera$ed B66*easureent results for the se$ent and the %araeterNonB##h$%&erOffse' of BT& The resulted leel is !o%ared to ane,istin$ threshold %araeter r*$e+MinCe,, >

4VG/0VN60// I NonB!!h/ayerOffset HL r*$e+MinCe,,&

r*$e+MinCe,, for a handoer !andidate se$ent is found in thenei$h"our %araeters of the !andidate se$ent& The %araeter definesthe iniu si$nal leel of an ad#a!ent !ell when a handoer is allowedto one of the&

.n ea!h !andidate se$ent of an inter !ell handoer the usa"ility of thenonCB66* fre+uen!y "and is de!ided usin$ the aera$ed B66*easureent results for the se$ent and the %araeterNonB##h$%&erOffse' of a nonCB66* fre+uen!y BT of the se$ent&The resulted leel is !o%ared to a new threshold %araeterNonBCCHLayerAccessThreshold>

4VG/0VN60// I NonB!!h/ayerOffset HLNonBCC6:a,erccessThreshold


Co##on BCC* ? Multi BC:

esource usa6ility de7inition in intra cell ,ando-erD $( $ ,a &s '"&(' "( "( a ("(-BH *%$Eu$(,! a( $ usa&&! "*

&**$%$( !$s "* %$s"u%,$s &s $*&($ as$ "( $ a)$%a'$BCC*#easure#ent results. $ *""#&(' *"%uas a%$ us$G

ACBHR8C? N"(B,,a!$%O**s$rxe-ccessMin

ACBHR8C? N"(B,,a!$%O**s$&onBCC*ayerccess!,res,old

$ *&%s *"%ua &s us$ " $)aua$ $ usa&&! "* BH*%$Eu$(,! %$s"u%,$s"* $ s$'$(. $ s$,"( *"%ua &s us$ " $)aua$ $ usa&&! "* ("(-BH *%$Eu$(,! %$s"u%,$s "* $ s$'$(.

Dual Band

eatures and

!ulti"BC

Fi$ure @C1


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Dual Band Features

the load !annot ne!essarily "e ke%t a!!ordin$ to the set liits "e!auseall the terinals do not su%%ort all the resour!e ty%es& 4lso due to the+uality reasons non B66* fre+uen!y resour!es ay not "e aaila"le inall T6* allo!ation !ases&

B6 !he!ks the load of the BTs eery tie it re!eies a T6* re+uestfor the se$ent in +uestion& 4 T6* re+uest !an tri$$er a load "alan!in$handoer een if the re+uest does not lead to allo!atin$ a T6* in the%arti!ular BT or een in the whole se$ent&

-hen B6 sele!ts tar$et BTs for the load "ased intra !ell handoer ita!!e%ts as tar$et only BTs whose load is "elow the res%e!tieBTS$o%)InSEG alue&

.n 1< i%leentation the load "alan!in$ handoers were ade to otherfre+uen!y "and only fro a 98@


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E@ % Base !ranscei-er Station *andlin in BSCPa%a$$% BTSLoadInSG

D "a && *"% a BS

D us$ &( ,"(%"&(' $ "a &s%&u&"( $#$$( BSs&( a s$'$(

Ra('$ 0 ...100 >

?$*au )au$ 70 >

M"&*!&(' "(&($

MM ,"a(sG LMJ LO

Dual Band

eatures and

!ulti"BC

Fi$ure @C12& araeter for load "alan!in$

4 e!hanis to dire!t traffi! fro the nonCB66* layer to B66* layerhas also "een i%leented& -hen the downlink si$nal leel in theserin$ nonCB66* fre+uen!y T6* de!reases the B6 starts ahandoer to the B66* fre+uen!y layer of the se$ent& This handoerty%e is a%%li!a"le only in networks where B66* fre+uen!y layer has

ore !oera$e than nonCB66* fre+uen!y layer (that is the B66* is on98 @


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2ntra cell ,ando-er 7ro#non BCC* layer 6ased on sinal le-el

D BS &(&&a$s a( &(%a ,$ a(")$% *%" ("( BH a!$% " BHa!$% #$( $ a)$%a'$ "#(&( s&'(a $)$ "( s$%)&(' ,a(($$,%$as$s $"# $ %$s" $*&($ ! a%a$$%NonBcchLayerx!tThreshold"R#$L%& N& P(

D &s $,%$as$s $ (u$% "* &($% ,$ a(")$%s *%" ("( BH a!$%

D a(")$% &s a&,a$ &( ,$s #$%$ BH a!$% as "%$ ,")$%a'$a( ("( BH a!$%

D BS us$s '$($%a P"#$% "(%" a( Ha(")$% A'"%& *u(,&"(s "%&''$% $ a(")$%

D I* &(%a ,$ a(")$% *a&s $( &($% ,$ a(")$% ,a( $ %&''$%$

Dual Bandeatures and

!ulti"BC

Fi$ure @C13 .ntra !ell *O fro non B66* layer "ased on si$nal leel

09 Dual Band Features and Multi-BCF MO v3.1

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