01 rn31631en20gla0 rrm overview ru20 v12
DESCRIPTION
fggffggTRANSCRIPT
Course Content
Module O)*ectives
At the end of the module you will e ale to!
" #es$rie the %ur%ose of RR&
" List the RR& fun$tional entities
" #es$rie the %ur%ose of ea$h of the RR& fun$tional entities
" 'dentify the lo$ation of RR& entities
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Radio Resource Management
" he %lanned coverage for ea$h tar/eted ser.i$e
" -i/h capacity i,e, low lo$kin/ )new $alls7 hando.ers*
" he re8uired 9uality of Ser.i$e )9oS*
" :%timi;e the use of a.ailale $a%a$ity )%riorities*
<y $ontinuously monitorin/ad=ustin/ how the a.ailale resour$es are used in a$$ordan$e with user re8uests
dio Resource Management (RRM) is responsible for opti utilisation of the air interface resources
RRM
" +redi$t the im%a$t on interferen$e )%ower* of
the admittin/ a new user for L ? #L
" +erform a%%ro%riate a$tions )e,/, new $all
admissions7 itrate in$reasede$rease et$,* in
a$$ordan$e with %re.ailin/ load $onditions
" +ro.ide different 8uality of ser.i$e for real
time )R* and non@real time )NR* users
" ake a%%ro%riate $orre$ti.e a$tion when the
different $ell load thresholds are e$eeded in
order to maintain $ell staility )i,e, load
$ontrol*
Overload
Time
Estimated capacity for NRT tracMeasured load caused by non-controllable load (RT)
6 © Nokia Siemens Networks RN31631EN20GLA0
" RR& is made u% of a numer of $losely interde%endent fun$tions )i,e,
al/orithms*
" Cell ,ased
" Resour$e mana/er )R&*
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Load control States
" Preventative load control )e,/, $on/estion*
" Overload control )e,/, dro%%in/ of $alls in worst $ase*
" +re.entati.e a$tions are %erformed efore the $ell is o.erloaded )threshold y*
" :.erload a$tions are %erformed after $ell is o.erloaded )threshold *
" RN+ %arameters define the thresholds for the RR& fun$tionalities
" he thresholds define a stale fun$tionality within a $ell ? with surroundin/ $ells
Overload threshold x
Time
Measured load caused by non- controllable load (RT)
Load Control
" L( %erforms the fun$tion of load $ontrol in asso$iation with A( ? +S
" %dates load status usin/ measurements ? estimations %ro.ided y A( ? +S
" (ontinuously feeds $ell load information to +S ? A(!
" 'nterferen$e le.els
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Admission Control
" Res%onsile for maimisin/ $a%a$ity )throu/h%ut* whilst %ro.idin/ the re8uired 8uality of
ser.i$e for R traffi$,
" (he$ks that admittin/ a new user will not sa$rifi$e %lanned $o.era/e or 8uality of eistin/
$onne$tions
" #etermines whether RA<s $an e admitted to the RAN
" -andles R RA<s alone y estimatin/ the in$rease in non@$ontrollale load
" ith +S de$ides whether to allo$ate resour$es to NR RA<s
" 'n the de$ision L interferen$e ? #L %ower measurements y <S are used
" Sin$e RAS06 also the L throu/h%ut is $onsidered for A(
" +ro.ides RL( %arameters to +S for NR users7 for eam%le
" <earer $lass
" rans%ort Formats
" A( sets /ualit0 and ower arameters for the radio link7 for eam%le
" L#L <LER7 ENo tar/ets7 S'R tar/et
" 'nitial #L transmission %ower
Admission Control #RAS12$3 icture(
" 'n L the re$ei.ed total wideand interferen$e %ower )R+* measured indi$ates the
traffi$ load of the radio resour$es,
" For #L the %ower $han/e $aused y new R ser.i$e is otained from the maimum
allowed #L transmission %ower for the ser.i$e,
" 'n the admission de$ision %ro$edure new $all )or modified eistin/ $all* is admitted if
oth L and #L admission de$isions are %assed
Pr45target
Admission Control6 !L
i@fa$tor
P rxLoadMarginMaxDCH
P rxTarget
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
1> © Nokia Siemens Networks RN31631EN20GLA0
" +S allo$ation times need to e fast to a$$ommodate $han/in/ $onditions ?
a$$urate )u%@to@date load info*
" (a%a$ity re8uests sent .ia traffi$ .olume measurement re%orts )/o.erned y
RN+ %arameters*
" +S $om%rises two %arts! E s%e$ifi$ ? (ell s%e$ifi$
%ower
time
resour$es for oth L and #L R77 .R+
RA,s
%arameters
A( and L(
usin/ Hest effortI a%%roa$h
Packet Scheduler in R.C
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Power Control #PC(
" Sin$e (#&A system is interferen$e limited it is enefi$ial to redu$e
transmission %ower as far as %ossile,
" hus7 the tar/et of +( is to a$hie.e the min, S'R that is re8uired to offer
suffi$ient 8uality of the $onne$tion,
" +( works on a %er@$onne$tion asis,
o!er Control
o!er Control
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Handover Control #HC(
" -( is res%onsile for
" Managing the mo)ilit0 asects of an RR( $onne$tion as E mo.e around network
" &aintainin/ hi/h $a%a$ity y ensurin/ !8 is alwa0s served )0 )est cell
'ntra@layer
'nter@layer
9ntra:S0stem
Hard Handover 9nter:fre/uenc0
"*M% to +&M "*M% to +PR& +&M to "*M% +PR& to "*M%
"*M% to "*M%
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Resource Manager #RM(
" Res%onsile for mana/in/ the lo/i$al radio resour$es of the RN( in $o@o%eration with
A( and +S
" :n re8uest for resour$es7 from either A()R* or +S)NR*7 R& allo$atesB
" #L s%readin/ $ode
" L s$ramlin/ $ode
" Also looks after $ode tree mana/ement )to maintain ortho/onality*B
" 'nitial $ode sele$tion J $odes $on$entrated to same ran$h
" (ode de@fra/mentation J dynami$ reallo$ation of $odes as users enterlea.e system
" #L s%readin/ $ode allo$ation for -S#+A users $an e dynami$ in RAS06
Code Type %plink &o!nlink
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
HSDPA : general rincile
" Fast s$hedulin/ is done dire$tly in Node@< ased on feeda$k information from E
and knowled/e of $urrent traffi$ state,
,E
*ata
*ata
New <S fun$tions
,E4
5 5 6 5 7 5 8 5 4 5 5 4 5 4 6 5 4 7 5 -
5
4 6
4 7
T i m e 9 n u m b e r o f T T / s :
. P & ; 4 2 6
Comaring HS!PA to R77 and HSDPA
" -S+A is 3G++ Rel6 KEnhan$ed F## %link
" main $hara$teristi$s!
=eature
Rel>>
%daptive modulation N A N
BT& based schedulin N A A
=ast $4 #%R. N A A
&oft #andover A N A
TT/ lenth 9ms: 850650504
5 450
HSPA" 9mrovements
" 'm%ro.in/ the #L %eak rates7 $ell throu/h%ut ? s%e$trum effi$ien$y!
" 659A&! Enhan$ed -S#+A &odulation
" &'&:! 'ntelli/ent &ulti@Antenna Systems
" 'm%ro.in/ the $ell throu/h%ut ? s%e$trum effi$ien$y!
" #L Fleile RL(
" (+(! (ontinuous +a$ket (onne$ti.ity
+eak Rates u% to!
21 24 52 &%s
Module O)*ectives
At the end of the module you will e ale to!
" #es$rie the %ur%ose of RR&
" List the RR& fun$tional entities
" #es$rie the %ur%ose of ea$h of the RR& fun$tional entities
" 'dentify the lo$ation of RR& entities
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Radio Resource Management
" he %lanned coverage for ea$h tar/eted ser.i$e
" -i/h capacity i,e, low lo$kin/ )new $alls7 hando.ers*
" he re8uired 9uality of Ser.i$e )9oS*
" :%timi;e the use of a.ailale $a%a$ity )%riorities*
<y $ontinuously monitorin/ad=ustin/ how the a.ailale resour$es are used in a$$ordan$e with user re8uests
dio Resource Management (RRM) is responsible for opti utilisation of the air interface resources
RRM
" +redi$t the im%a$t on interferen$e )%ower* of
the admittin/ a new user for L ? #L
" +erform a%%ro%riate a$tions )e,/, new $all
admissions7 itrate in$reasede$rease et$,* in
a$$ordan$e with %re.ailin/ load $onditions
" +ro.ide different 8uality of ser.i$e for real
time )R* and non@real time )NR* users
" ake a%%ro%riate $orre$ti.e a$tion when the
different $ell load thresholds are e$eeded in
order to maintain $ell staility )i,e, load
$ontrol*
Overload
Time
Estimated capacity for NRT tracMeasured load caused by non-controllable load (RT)
6 © Nokia Siemens Networks RN31631EN20GLA0
" RR& is made u% of a numer of $losely interde%endent fun$tions )i,e,
al/orithms*
" Cell ,ased
" Resour$e mana/er )R&*
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Load control States
" Preventative load control )e,/, $on/estion*
" Overload control )e,/, dro%%in/ of $alls in worst $ase*
" +re.entati.e a$tions are %erformed efore the $ell is o.erloaded )threshold y*
" :.erload a$tions are %erformed after $ell is o.erloaded )threshold *
" RN+ %arameters define the thresholds for the RR& fun$tionalities
" he thresholds define a stale fun$tionality within a $ell ? with surroundin/ $ells
Overload threshold x
Time
Measured load caused by non- controllable load (RT)
Load Control
" L( %erforms the fun$tion of load $ontrol in asso$iation with A( ? +S
" %dates load status usin/ measurements ? estimations %ro.ided y A( ? +S
" (ontinuously feeds $ell load information to +S ? A(!
" 'nterferen$e le.els
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Admission Control
" Res%onsile for maimisin/ $a%a$ity )throu/h%ut* whilst %ro.idin/ the re8uired 8uality of
ser.i$e for R traffi$,
" (he$ks that admittin/ a new user will not sa$rifi$e %lanned $o.era/e or 8uality of eistin/
$onne$tions
" #etermines whether RA<s $an e admitted to the RAN
" -andles R RA<s alone y estimatin/ the in$rease in non@$ontrollale load
" ith +S de$ides whether to allo$ate resour$es to NR RA<s
" 'n the de$ision L interferen$e ? #L %ower measurements y <S are used
" Sin$e RAS06 also the L throu/h%ut is $onsidered for A(
" +ro.ides RL( %arameters to +S for NR users7 for eam%le
" <earer $lass
" rans%ort Formats
" A( sets /ualit0 and ower arameters for the radio link7 for eam%le
" L#L <LER7 ENo tar/ets7 S'R tar/et
" 'nitial #L transmission %ower
Admission Control #RAS12$3 icture(
" 'n L the re$ei.ed total wideand interferen$e %ower )R+* measured indi$ates the
traffi$ load of the radio resour$es,
" For #L the %ower $han/e $aused y new R ser.i$e is otained from the maimum
allowed #L transmission %ower for the ser.i$e,
" 'n the admission de$ision %ro$edure new $all )or modified eistin/ $all* is admitted if
oth L and #L admission de$isions are %assed
Pr45target
Admission Control6 !L
i@fa$tor
P rxLoadMarginMaxDCH
P rxTarget
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
1> © Nokia Siemens Networks RN31631EN20GLA0
" +S allo$ation times need to e fast to a$$ommodate $han/in/ $onditions ?
a$$urate )u%@to@date load info*
" (a%a$ity re8uests sent .ia traffi$ .olume measurement re%orts )/o.erned y
RN+ %arameters*
" +S $om%rises two %arts! E s%e$ifi$ ? (ell s%e$ifi$
%ower
time
resour$es for oth L and #L R77 .R+
RA,s
%arameters
A( and L(
usin/ Hest effortI a%%roa$h
Packet Scheduler in R.C
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Power Control #PC(
" Sin$e (#&A system is interferen$e limited it is enefi$ial to redu$e
transmission %ower as far as %ossile,
" hus7 the tar/et of +( is to a$hie.e the min, S'R that is re8uired to offer
suffi$ient 8uality of the $onne$tion,
" +( works on a %er@$onne$tion asis,
o!er Control
o!er Control
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Handover Control #HC(
" -( is res%onsile for
" Managing the mo)ilit0 asects of an RR( $onne$tion as E mo.e around network
" &aintainin/ hi/h $a%a$ity y ensurin/ !8 is alwa0s served )0 )est cell
'ntra@layer
'nter@layer
9ntra:S0stem
Hard Handover 9nter:fre/uenc0
"*M% to +&M "*M% to +PR& +&M to "*M% +PR& to "*M%
"*M% to "*M%
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
Resource Manager #RM(
" Res%onsile for mana/in/ the lo/i$al radio resour$es of the RN( in $o@o%eration with
A( and +S
" :n re8uest for resour$es7 from either A()R* or +S)NR*7 R& allo$atesB
" #L s%readin/ $ode
" L s$ramlin/ $ode
" Also looks after $ode tree mana/ement )to maintain ortho/onality*B
" 'nitial $ode sele$tion J $odes $on$entrated to same ran$h
" (ode de@fra/mentation J dynami$ reallo$ation of $odes as users enterlea.e system
" #L s%readin/ $ode allo$ation for -S#+A users $an e dynami$ in RAS06
Code Type %plink &o!nlink
Radio Resource Management Overview
" +ower (ontrol )+(*
" -ando.er (ontrol )-(*
HSDPA : general rincile
" Fast s$hedulin/ is done dire$tly in Node@< ased on feeda$k information from E
and knowled/e of $urrent traffi$ state,
,E
*ata
*ata
New <S fun$tions
,E4
5 5 6 5 7 5 8 5 4 5 5 4 5 4 6 5 4 7 5 -
5
4 6
4 7
T i m e 9 n u m b e r o f T T / s :
. P & ; 4 2 6
Comaring HS!PA to R77 and HSDPA
" -S+A is 3G++ Rel6 KEnhan$ed F## %link
" main $hara$teristi$s!
=eature
Rel>>
%daptive modulation N A N
BT& based schedulin N A A
=ast $4 #%R. N A A
&oft #andover A N A
TT/ lenth 9ms: 850650504
5 450
HSPA" 9mrovements
" 'm%ro.in/ the #L %eak rates7 $ell throu/h%ut ? s%e$trum effi$ien$y!
" 659A&! Enhan$ed -S#+A &odulation
" &'&:! 'ntelli/ent &ulti@Antenna Systems
" 'm%ro.in/ the $ell throu/h%ut ? s%e$trum effi$ien$y!
" #L Fleile RL(
" (+(! (ontinuous +a$ket (onne$ti.ity
+eak Rates u% to!
21 24 52 &%s