153105596 UMTS Scrambling Code Planning

7/24/2019 153105596 UMTS Scrambling Code Planning

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UNCLASSIFIED

Author: Mattia Quinzio (Nokia) Owner: Paul Sheehan

Confdence:

Date: 12/07/02 Status: Issue Version: I1.0

Title: Scrambling code allocation strategy

Summary:

A strategy and methodology or DL primary scrambling code allocationin !" networ#$ or launch plus % months&

Documentno&

RD&T!M&S"#"

Owner: 'aul SheehanStatus: (ssueDate : )*+,-+,) .nclassifed

'rinted On: /0+//+/1'age / o /2

Scrambling code allocationstrategy

Hutchison 3G Engineering Documentation

Radio Design Group


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.nclassifed Radio DesignGroup

1.1 Document Version History

Version Date Author 3eason or Change

D/&, /)+,2+,) 4attia 5uin6io /st7ersion

D/&/ )!+,2+,) 4attia 5uin6io Code naming added$ code groupstrategy re7ised or carriers and layers

(/&, )*+,-+,) 'aul Sheehan 3e7ised ormatting

1.2 Dist$i%ution ist

8ame Organisation+Department

9assir ussain 3 Strategy ; Optimisation

Da7id ennessy 8ational 3ollout

Owner: 'aul SheehanStatus: (ssueDate : )*+,-+,)

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1." 'ontents Pae

1.1 Dou*ent +e$sion ,isto$-..................................................................................................1.2 Dist$i%ution ist..................................................................................................................1." 'ontents Pae....................................................................................................................

2 Dou*ent Soe....................................................................................................2.1 Pu$ose...............................................................................................................................2.2 Intene uiene.............................................................................................................2." S-nosis.............................................................................................................................

" Ree$enes..............................................................................................................

Int$oution............................................................................................................

3 S$a*%lin oes...................................................................................................3.1 !link.................................................................................................................................3.2 Do4nlink.............................................................................................................................3.2.1 'oe na*in..................................................................................................................

# !5 s-nh$onization $oess....................................................................................#.1 'ell seletion......................................................................................................................#.2 Neih%ou$s *easu$e*ents................................................................................................

7 Re6ui$e*ents o$ oe alloation...........................................................................

Tools.......................................................................................................................

.1 5nte$$ise 8 "....................................................................................................................2 5nte$$ise 8 .0..................................................................................................................." 5nte$$ise 8 .1..................................................................................................................

9 'oe alloation.....................................................................................................9.1 P$oess o8e$8ie4..............................................................................................................9.2 'ell otets.........................................................................................................................9." :$ou $euse istane.......................................................................................................

10 'oe $ous st$ate-...........................................................................................10.1 'a$$ie$s........................................................................................................................10.2 a-e$s..........................................................................................................................10.2.1 Pio a-e$.....................................................................................................................

10.2.2 Mi$o la-e$...................................................................................................................10.2." Ma$o la-e$..................................................................................................................10.2. Rese$8e oe $ous..................................................................................................10." Rest$aints on oe use; national %o$e$s.....................................................................

11 eni


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2 Dou*ent Soe

2.1 Purpose

This ou*ent $ooses a st$ate- to ao*lish the task o s$a*%lin oe alloation o$,": !MTS net4o$k.

2.2 Intended Audience

The R= Desin & Te$*inals an the National Net4o$k Rollout & Inte$ation tea*s.

2.3 Synopsis

" Ree$enes

[1] ":PP TS 23.21 8".10.0 (2001>0")? Tehnial Sei@ation :$ou Raio essNet4o$k? Ph-sial a-e$ P$oeu$es (=DD) Release 1999.

[2] Aou$tis S; B'oe Plannin St$ate- o$ !MTS>=DD net4o$ksB

[3] Me*o$anu* o !ne$stanin onlue %et4een =$ane an the !niteAino* on oo$ination in the 1900>190 M,z; 2010>2023 M,z an 2110>2170M,z $e6uen- %ans? +e$sion De 2001? Do (01) 03 5 $e8 1

[4] Me*o$anu* o !ne$stanin onlue %et4een the a*inist$ation o the!nite Aino* an I$elan on oo$ination in the 1900>190 M,z; 2010>2023M,z an 2110>2170 M,z $e6uen- %ans? +e$sion 0#/1>/01

[5] Me*o$anu* o !ne$stanin onlue %et4een the Isle o Man an the!nite Aino* on oo$ination in the 191.9>1919.9 M,z; 1920.">19"0." M,zan 2110.">2120." M,z $e6uen- %ans? +e$sion 27/0"/01


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Introduction

The$e is the nee to e@ne a s$a*%lin oe alloation st$ate- %eo$e ,":net4o$k launh.

This ou*ents @$st es$i%es the %asi onet o s$a*%lin oes (hate$3) an thei$ i*at on !5 e$o$*anes (hate$ #). Do4nlink s$a*%linoe alloation is not $uial on the o8e$all s-ste* e$o$*anes. It has %een$o8en thouh ho4 the !5 e$o$*anes an %e i*$o8e 4hen s$a*%linoes a$e e@ne 4ith e$tain onst$aints e$i8in $o* the neih%ou$ lists(hate$ 7). !no$tunatel- the i$o* lannin tool u$$entl- a8aila%le annotsuo$t this $oess (hate$ ).

In this sena$io; the $oose st$ate- o*es as an inte$i* solution o$ ,":net4o$k launh lus # *onths; es$i%e in hate$ 9. In the lon>te$*sena$io *o$e a$o$iate tools 4ill %e a8aila%le; $o8iin the Ce


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5ah s$a*%lin oe shoul ienti- uni6uel- one ell in the a$ea? this *eansthat in an- loation all the ells that a !5 an *easu$e nee to ha8e ie$ents$a*%lin oes in o$e$ to %e una*%iuousl- etete.

!.2.1 'ode naming

The RN s$a*%lin oe a$a*ete$ is si*l- nu*%e$e $o* 0 to 311; as inTa%le 1.

k\j 0 1 2 !

0 ( ) 1* !(

1 1 + 1, !(!

2 2 1( 1) !(*

! 3 11 1+ !(,

" 12 2( !()

# ! 13 21 !(+

* 1 22 !1(

$ , 1! 23 !11

Table /: Scrambling codes numbering

u$the$ oe>na*in she*e an %e e@ne o$ the alloation st$ate-es$i%e in this ou*ent. The $oose she*e is a th$ee>ha$ate$ st$inFthe @$st t4o iits iniate the oe $ou (G; $o* 00 to #") an the thi$lette$ is o$ the oe insie the $ou (k; $o* to ,).

k\j 0 1 2 !

0 ((A (1A (2A *3A

1 ((- (1- (2- *3-

2 ((' (1' (2' *3'

! ((D (1D (2D *3D

" ((E (1E (2E *3E

# (( (1 (2 *3

((G (1G (2G *3G

$ ((H (1H (2H *3H

Table ): Scrambling codeu ta%le an %e use at an- ti*e to on8e$t oes $o* one na*inshe*e to anothe$.

1 ( 1 2 / !(+ !1( !11

2 ((A ((- ((' *3 *3G *3H

Table !: Scrambling codes loo#


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* $E synchroni0ation process

*.1 'e## se#ection

The !5 ollo4s a th$ee>ste s-nh$onization $oess e8e$- ti*e it has to

s-nh$onize to a ne4 ell o$ ell seletion (seeTa%le ). In this $oess the !5is %lin; i.e. it has no kno4lee o the s$a*%lin oe use %- the eteteell.

Step

Cell selection

1 slot s-nh$onization

2 =$a*e s-nh. & oe $ou ienti@ation

" s$a*%lin oe ienti@ation an 'PI', *easu$e*ent

Table * < Synchroni6ation process

In the @$st ste; slot s-nh$onisation is ahie8e usin the P$i*a$-S-nh$onisation 'oe on the P>S',; o**on to all the ells in the net4o$k.

In the seon ste the $a*e s-nh$onization is o%taine an the s$a*%linoe $ou is ete$*ine $o* the Seona$- S-nh$onisation 'oe se6uene?the$e is a one>to>one $elationshi %et4een # ie$ent oe se6uenes on theS>S', an # s$a*%lin oe $ous.

Ene $a*e s-nh$onization is ahie8e the $i*a$- s$a*%lin oe an %e

ienti@e an the ilot hannel *easu$e H1. The 5/Io *easu$e*ents on the'PI', a$e at the %ase o ell seletion $ite$ia.

*.2 eigh"ours measurements

58en thouh the alo$ith* use %- the !5 to s-nh$onize to a neih%ou$ ell is8eno$ sei@; it is $easona%le to assu*e that the sa*e s-nh$onization$oess sei@e o$ ell seletion 4ill %e use; as it has %een esine to*ini*ize ti*e an o*le


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Table 1 < Characteristics o sync steps or neighbour cells measurements

n- st$ate- on s$a*%lin oe alloation shoul ai* to @n the %est t$ae>o %et4een the see o$ a ast hano8e$ an the $oessin o4e$$e6ui$e*ent (an hene %atte$- onsu*tion) on the seon an thi$ staeso the s-nh$onization $oess one o$ neih%ou$ ell *easu$e*ent.

In the neih%ou$s *easu$e*ent $oess the *ain $oles a$e la-e %- thenu*%e$ o neih%ou$s (N); the nu*%e$ o oe $ous (M) an the nu*%e$ ooe e$ $ous () use in the neih%ou$ list.

It has %een stuie H2that *ini*izin M an *a


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$e6ui$e*ent ) 4oul %e the *ost $est$iti8e one; an so*eho4ua$antee that a); %) an ) a$e satis@e.

- Re6ui$e*ent e) is to %e t$eate sea$atel- $o* all the othe$s? anoti*isation alo$ith* 4oul %e neee to @n the oti*alsolution to suh o*le< $o%le*.

) 4oo#s

t the ti*e o 4$itin this ou*ent no tool is a8aila%le to e$o$* as$a*%lin oe lannin that ul@l all the $e6ui$e*ents $o* hate$ 7.

).1 Enterprise 5 3.

The 5nte$$ise lannin tool 8e$sion ". has no ailit- o$ s$a*%lin oe

lannin.The $e6uen->lannin *oule oul ossi%l- %e use o$ that u$ose;alloatin oes as i the- 4e$e $e6uen- hannels. This t-e o alloation4oulnLt allo4 settin an- onst$aint on $ous an oes e$ $ou; as 4ellas an- onst$aint on the neih%ou$ lists. =u$the$*o$e the $e6uen->lannintool is not a$t o the liense u$$entl- hel %- ,":; 4hih *eans it 4oulha8e to %e %ouht sea$atel-.

=o$ all these $easons 4e o%8iousl- onlue that 5nte$$ise 8". annot %euse o$ an- s$a*%lin oe lannin.

).2 Enterprise 5 .(

5nte$$ise .0 $elease $o8ies a ell sei@ s$a*%lin oes lannin anassin*ent untionalit-. The tool assins s$a*%lin oe to all the ellsha8in the sa*e a$$ie$.

The s$a*%lin oe lanne$ untionalit-; thouh; is 6uite %asi; an is u$el-$i8en %- the onl- onst$aint o inte$e$ene? s$a*%lin oe a$e assine toeah ell *akin su$e that the inte$e$in ells onLt ha8e the sa*es$a*%lin oe (as $o* the @$st $e6ui$e*ent; hate$ 7).

t the ti*e o 4$itin this ou*ent; this tool $elease has not %een teste -eton ,": sie; the$eo$e no u$the$ o**ent on it an %e *ae a8aila%le.

).3 Enterprise 5 .1

The s$a*%lin oe lanne$ tool o$ 5nte$$ise 8e$sion .1 4ill %e sini@antl-enhane o*a$e to $elease .0.

The tool 4ill %e %ase on an oti*isation alo$ith*. Its u$$ent esin inluesalloation o oes e$ $ous 4ith $ee$ene %oth to neih%ou$ lists aninte$e$in ells. s 4ell istane onst$aints an %a$$e oes an %e taken

into aount.


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=$o* the esin; this tool see*s to i8e enouh Celannin tool isa8aila%le; a $e8ision o the st$ate- is st$onl- $eo**ene.

The $oess es$i%e inlues a $oosal o$ an inte$nal e8eloe tool toe$o$* the oe alloation in an auto*ate; assiste 4a- o$ the Ma$o la-e$.

The oe alloation o$ Mi$o an Pio ells an %e one *anuall-; e8enthouh ollo4in the sa*e uielines as o$ the Ma$o la-e$.

+.1 Process o5er5ie&

1. The ollo4in @u$e $esu*es the %asi stes o s$a*%lin oealloation

Scrambling codes

allocation

Neighbour lists

definition

Are requirements

all met

YES

NO

Implement codes

and neighbours

Scrambling codes

allocation

Neighbour lists

definition

Are requirements

all met

YES

NO

Implement codes

and neighbours

igure /: 'rocess o7er7iew

Ieall- the oe alloation shoul %e e$o$*e on the inut o the neih%ou$lists %utF

No tool is a8aila%le o$ that u$ose

n- oti*al oe alloation one o$ a e$tain neih%ou$ list inut*iht not %e oti*al 4hen the inut hanes? the neih%ou$ lists oa non>*atu$e net4o$k a$e su%Get to ontinuous hanes; 4hih4oul i*l- $e6uent $e>$un o the oe alloation.


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The $oose $oess hene an %e a $ee$a%le one i itLs ossi%le to @n aset o onitions o$ the s$a*%lin oe alloation st$ate- to ua$antee thatall o$ *ost o the $e6ui$e*ents a$e satis@e 4ith 8i$tuall- an- ossi%leneih%ou$ lists set. No ne4 oe alloation 4oul %e neee 4hen neih%ou$lists hanes.

The t4o ne


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+.3 Group reuse distance

Ene ell otets a$e e@ne; ie$ent oe $ous 4ill %e assine to aGaentotets. The oe $ou assin*ent *ust %e one *a


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1( 'ode groups strategy

=iu$e " $esu*es the oe $ou alloation st$ate- es$i%e in the ne


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a$e likel- to $o4 ineenentl-; a sueste st$ate- is to $ese$8e a e$tainnu*%e$ o oe $ous to eah la-e$.

1(.2.1 Pico 9ayer

igure *: .9 and London town < 'ico cells location

=iu$e sho4s the ist$i%ution o inoo$ sites o$ the @$st -ea$ o ,": net4o$kin all the ount$- an; 4ith hihe$ zoo*; in onon to4n; the ensest a$ea.

5ah Pio site on@u$ation *iht 8a$- eenin on the %uilin la-out anon the aait- nee. Je assu*e that one site an ha8e ells *a


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1(.2.3 8acro #ayer

30 oe $ous a$e *ae a8aila%le o$ oe alloation on Ma$o la-e$; o$ atotal o 30


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th$eshols e@ne in Ta%le 7to e8aluate the inte$e$ene on the neih%ou$lan.

The $ee$ential oe $ous a$e set ie$entl- o$ the neih%ou$in ount$iesan a$e $eo$te in the ne


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11 Appendi;

11.1 GIS too#

The $o%le* es$i%e in hate$s 9.2an 9."an %e sol8e 4ith the use o a:IS aliation like MaIno.

!sin Ma Kasi $o$a**in lanuae a tool an %e e8eloe to e$o$*the ollo4in oe$ationsF

1. I*o$t a net4o$k te

153105596 UMTS Scrambling Code Planning

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