1 Nokia Siemens NetworksRN31671EN30GLA0Radio Resource Management Overview2 Nokia Siemens NetworksRN31671EN30GLA0Radio Resource Management (RRM) Overview:Module ObjectivesAt the end of the module ou will !e a!le to"#es$ri!e the %ur%ose of RR&List the RR& fun$tional entities#es$ri!e the %ur%ose of ea$h RR& fun$tional entit3 Nokia Siemens NetworksRN31671EN30GLA0Radio Resource Management'ar(et for RR& is to ensure the RAN offers"'he %lanned coverage for ea$h tar(eted ser)i$e*i(h capacityi+e+ low !lo$kin( ,new $alls- hando)ers.'he re/uired 0ualit of Ser)i$e ,0oS.1%timi2e the use of a)aila!le $a%a$it ,%riorities.3 $ontinuousl monitorin(4ad5ustin( how the a)aila!le resour$es are used in a$$ordan$e with user re/uests Radio Resource Management (RRM) is responsible for optimalutilization of the air interface resourcesRRMLink ualit!"ell "overage "ell "apacit!6 Nokia Siemens NetworksRN31671EN30GLA0RRM #asksRR& must !e a!le to"7redi$t the im%a$t on interferen$e ,%ower. of the admittin( a new user for 8L 9 #L7erform a%%ro%riate a$tions ,e+(+ new $all admissions- !itrate in$rease4de$rease et$+. in a$$ordan$e with %re)ailin( load $onditions7ro)ide different /ualit of ser)i$e for real time ,R'. and non:real time ,NR'. users'ake a%%ro%riate $orre$ti)e a$tions when the different $ell load thresholds are e;$eeded in order to maintain $ell sta!ilit ,i+e+ load $ontrol.OverloadLoad TargetOverload MarginPowerTimeEstimated capacity for NRT trafcMeasured load causedby non-controllable load (RT)R' ser)i$es must ha)e hi(her /ualit assuran$e than NR'< Nokia Siemens NetworksRN31671EN30GLA0RR& is made u% of a num!er of $losel interde%endent fun$tions ,i+e+ al(orithms.'hese fun$tions $an !e di)ided into="ell $asedLoad >ontrol ,L>.Admission >ontrol ,A>.7a$ket S$hedulin( ,7S.Resour$e &ana(er ,R&."onnection $ased*ando)er >ontrol ,*>.7ower >ontrol ,7>.RRM %unctional &plitPCHCConnection based functions C!CCell based functionsP"RM6 Nokia Siemens NetworksRN31671EN30GLA0'ower "ontrol '"?>#&A sstems are interferen$e limited= therefore- it is !enefi$ial to redu$e transmission %ower as far as %ossi!le ,without )iolatin( the re/uired /ualit.+ 'hus- the tar(et of 7> is to a$hie)e the min+ S@R that is re/uired to offer suffi$ient /ualit of the $onne$tion+ 7> works on a %er:$onne$tion !asis+ 'ower "ontrol'ower "ontrolLoad "ontrolRNC BTS MS'ower "ontrol(andover "ontrol)dmission "ontrolLoad "ontrol'acket &cheduler7 Nokia Siemens NetworksRN31671EN30GLA0Load "ontrol functions'he load $ontrol fun$tion within RR& $an !e di)ided"'reventative load control ,e+(+ $on(estion.Overload control ,e+(+ dro%%in( of $alls in worst $ase.7re)entati)e a$tions are %erformed !efore the $ell is o)erloaded ,threshold .1)erload a$tions are %erformed after $ell is o)erloaded ,threshold ;.RN7 %arameters define the thresholds for the RR& fun$tionalities 'he thresholds define a sta!le fun$tionalit within a $ell 9 with surroundin( $ellsOverloadthreshold xLoad Targetthreshold yPowerTimeEstimated $a%a$it for NR' traffi$+&easured load $aused ! non:$ontrolla!le load ,R'.Preventative Load ControlOverload ControlA Nokia Siemens NetworksRN31671EN30GLA0Load "ontrol L"L> %erforms the fun$tion of load $ontrol in asso$iation with Admission >ontrol A> 9 7a$ket S$hedulin( 7S 8%dates load status usin( measurements 9 estimations %ro)ided ! A> 9 7S>ontinuousl feeds $ell load information to 7S 9 A>"@nterferen$e le)els3'S %ower le)elsNon:$ontrolla!le loadL>A>7S*R# loadLoad change infoLoad statusLoad differentiation"'otal load B >ontrolla!le load C Semi:$ontrolla!le load C Non:$ontrolla!le load D Nokia Siemens NetworksRN31671EN30GLA0)dmission "ontrol )">he$ks that admittin( a new user will not sa$rifi$e %lanned $o)era(e or /ualit of e;istin( $onne$tions+etermines whether R)$s or RR" connections can be admitted*andles R' RA3s ! estimatin( the in$rease in non:$ontrolla!le load@n the de$ision 8L interferen$e 9 #L %ower measurements ! 3'S are usedSin$e RAS06 the 8L throu(h%ut is $onsidered for A>- too8L 9 #L admission $onditions must !oth !e fulfilled to admit a new $all or modified e;istin( $all7ro)ides RL> %arameters to 7S for NR' users- e+(+3earer $lass'rans%ort EormatsA> sets ,ualit! and power parameters for the radio link- e+(+"8L4#L 3LER- E!4No tar(ets- S@R tar(et@nitial #L transmission %owerA> takes %la$e in the RN>)dmission+ecision-rantReject10 Nokia Siemens NetworksRN31671EN30GLA07Sallo$ationtimesneedto!efasttoa$$ommodate$han(in($onditions9 a$$urate ,u%:to:date load info.>a%a$itre/uestssent)iatraffi$)olumemeasurementre%orts,(o)erned! RN7 %arameters.7S $om%rises two %arts"8E s%e$ifi$ 9 >ell s%e$ifi$(&+') . (&/') resources are s$heduled ! the *ode $%owertimenon:$ontrolla!le load$ontrolla!le loadTotal oadTar#et t$res$old%&erload t$res$old7a$ket S$heduler in R*" s$hedules radio resour$es for !oth /L . +L R00 *R# R)$sS$hedulin( %eriod defined ! RN7 %arameters7S relies on u%:to:date information from A> 9 L>>a%a$it allo$ated on a needs !asis usin( F!est effortG a%%roa$h'acket &cheduler '&11 Nokia Siemens NetworksRN31671EN30GLA0(andover "ontrol ("1ntra2%re,uenc! (andovers&ofter3&oft (andover8E simultaneousl $onne$ted to multi%le $ells from same4different Node 3s&o!ile E)aluated *ando)er M4(O(ard (andoverwhen @nter:RN> S*1 is not %ossi!le ,@ur not su%%orted or @ur $on(estion.Hin $ase of *S#7A1nter2%re,uenc! (andover$an !e @ntra:3S- @ntra:RN> or @nter:RN> Network E)aluated *ando)er *4(O1nter2R)# (andover *ando)ers !etween ?>#&A and GS&- L'E or ?LANNetwork E)aluated *ando)er *4(O?>#&A E1 ?>#&A E1 ?>#&A E1?>#&A E2 ?>#&A E2?>#&A E1*> is res%onsi!le for"&ana(in( the mo!ilit as%e$ts of an RR> $onne$tion as 8E mo)es around network&aintainin( $onne$tion /ualit ! ensurin( 8E is alwas ser)ed ! the !est $ellsa)in( $a%a$itGS&4L'E GS&4L'E?>#&A12 Nokia Siemens NetworksRN31671EN30GLA0Resource Manager RMRes%onsi!le for mana(in( the lo(i$al radio resour$es of the RN> in $o:o%eration with A> and 7S1n re/uest for resour$es- from either A>,R'. or 7S,NR'.- R& allo$ates"#L >hanneli2ation >ode 8L S$ram!lin( >ode>ares a!out $ode tree mana(ement ,to maintain ortho(onalit.=@nitial $ode sele$tion I $odes $on$entrated to same !ran$h>ode de:fra(mentation I dnami$ reallo$ation of $odes as users enter4lea)e sstem#L s%readin( $ode allo$ation for *S#7A users $an !e dnami$ from RAS06 on"ode #!pe /plink +ownlink&crambling codes"hannelization codes/ser separation "ell separation+ata . control channels from same /4 /sers within one cell13 Nokia Siemens NetworksRN31671EN30GLA0(&+') 2 general principleEast s$hedulin( is done dire$tl in Node:3 !ased on feed!a$k information from 8E and knowled(e of $urrent traffi$ state+*ard *ando)er onl'E(>hannel /ualit,>0@- A$k4Na$k- '7>.>hannel /ualit,>0@- A$k4Na$k- '7>.#ata#ata8sers ma !e time and4or $ode multi%le;edNew 5$#& functions" East *AR0 retransmissions East Ada%ti)e &odulation 9 >odin( East 7a$ket data s$hedulin( ,short ''@.New 5$#& functions" East *AR0 retransmissions East Ada%ti)e &odulation 9 >odin( East 7a$ket data s$hedulin( ,short ''@.'E)* ( * + * , * - * ) * * ) ( * ) + * ) , *- (*(+,-) *) () +) ,T i m e . n u m b e r o f T T / s 01 P " 2 ) 3 +1 P " 2 ( 3 +1 P " 2 4 3 +) , 1 ! M ( 3 +) , 1 ! M 4 3 +16 Nokia Siemens NetworksRN31671EN30GLA0(&/') 3 "omparing (&/') to R00 and (&+') *S87A is 3G77 Rel6 JEnhan$ed E## 8%linkK main $hara$teristi$s" East ?3'S 7a$ket S$hedulin( East L1 *AR0 al(orithms East Link Ada%tation 2ms or 10ms ''@ %eriods Soft *ando)er SE down to SE B 2 7eak Rates u% to arrier4>ell 'ransmission @m%ro)in( the $ell throu(h%ut 9 s%e$trum effi$ien$"#L Ele;i!le RL> >ontinuous 7a$ket >onne$ti)it>S Moi$e o)er *S7A#L 7eak Rates u% to" 2142A462 &!%s8L 7eak Rates u% to" an$ellation Re$ei)er#L 7eak Rates u% to" 62 &!%s8L 7eak Rates u% to" 11 &!%sR/9816 Nokia Siemens NetworksRN31671EN30GLA0(&')6 1mprovementsH"5P! /mpro&ements6 5C-H"5P! 7 ,+1!M 7 M/M% (-+Mbps)#ual 3and *S#7A,62 &!%s.8eneral /mpro&ements6*i(h S%eed >ellQEA>* ,#LC8L.Smart L'E Laerin( A%%li$ation Aware RAN#L 7eak Rates u% to" A6 &!%s8L 7eak Rates u% to" 11 &!%sR/:8*S#7A @m%ro)ements" &>:*S#7A,16A &!%s.*S#7A &ultiflow General @m%ro)ements"&easurement !ased L'E Laerin(>on)ersational 0oS for Mo@7RAN 1%timi2ed >ontent #eli)er *S87A @m%ro)ements" #>:*S87A ,23 &!%s.#L 7eak Rates u% to" 16A &!%s8L 7eak Rates u% to" 23 &!%sR/;8under planning17 Nokia Siemens NetworksRN31671EN30GLA1&lide count . module versionsLearnin( Element &odule Mersion SlidesRLE 01 Radio Resour$e &ana(ement 1)er)iew RAN7AR >om!i R860Q)1+0 20 4 1D 4 30LE 02 7arameter >onfi(uration RAN7AR >om!i R830Q)1+0 SS 4 2D 4 2DLE 03 >ommon >hannels 9 7ower >ontrol RAN7AR >om!i R830Q)1+0 SS 4 ontrol RAN7AR >om!i R830Q)1+0 SS 4 26 4 2ontrol RAN7AR >om!i R860Q)1+0 71 4 70 4 AALE 06 7a$ket S$hedulin( RAN7AR >om!i R830Q)1+0 SS 4 D0 4 126LE 07 *ando)er >ontrol RAN7AR >om!i R830Q)1+0 SSS 4 163 4 16om!i R830Q)1+0 11 4 11 4 12LE 0D *S#7A RR& 9 %arameters RAN7AR >om!i R830Q)1+0 SSS 4 11A 4 12DLE 10 *S87A RR& 9 %arameters RAN7AR >om!i R830Q)1+0 SS 4 DA 4 106LE 11 *S7AC RR& RAN7AR >om!i R830Q)1+0 122 4 101 4