NSN 2G-3G Parameter Setting

1 NSN Siemens Networks Presentation / Author / Date
I insert classification level

Sharing Traffic 2G-3G
Load Base Handover 2G-3G
Cell Reselection
3G-2G
2G-3G
PUSH AMR
Soc Classification level
Load ased Handover GSM -! "C#MA
100
!0
0
"oa# reason
$an#overs
for s%eech
Load of GSM cell
Packet Data to &CD'A
re(ar#less of )S' loa#
Packet Data to &CD'A
re(ar#less of )S' loa#
S%eech to &CD'A
onl* with hi(h )S' loa#
S%eech to &CD'A
onl* with hi(h )S' loa#
$i(her +it rates
for #ata users
$i(her +it rates
for #ata users
'ore ca%acit*
for s%eech
'ore ca%acit*
for s%eech
Packet ,CC$ %arameters can +e use#
to %ush )P-S mo+iles to &CD'A
Packet ,CC$ %arameters can +e use#
to %ush )P-S mo+iles to &CD'A
Utran
HoThScTpdc
= 80%
. NSN Siemens Networks Presentation / Author / Date
)S'
)S'
)S'
)S'
Load $ Coverage Reason Handover
)S'
)S'
)S' hi(h
loa#e#
&CD'A low
loa#e#
)S'
)S'
)S'
)S'
&CD'A
&CD'A
&CD'A
&CD'A
"oa# reason
$an#over for s%eech
an# for $SCSD
"oa# reason
$an#over for s%eech
an# for $SCSD
&CD'A
&CD'A
)S'
)S'
"oa# reason
$an#over
Covera(e reason
$an#over
"C#MA can e %sed
to relieve GSM overload
GSM can e %sed to e&tend
"C#MA coverage area
"C#MA can e %sed
to relieve GSM overload
GSM can e %sed to e&tend
"C#MA coverage area
'o+ile movin(
/ NSN Siemens Networks Presentation / Author / Date
Load ased Handover Process' GSM-! "C#MA
$an#over 0ri((erin( 0hreshol#s set in ,SC
$an#over 0ri((erin( 0hreshol#s set in ,SC
Inter1-A0 measurements starts in case
0he R(L)* of the servin( cell is a+ove or
+elow the (iven threshol# +search,C
Inter1-A0 measurements starts in case
0he R(L)* of the servin( cell is a+ove or
+elow the (iven threshol# +search,C
Handover #ecision is #one in case of
"oa# of the servin( cell 2 Load,Threshold
3 CPIC$ 4c/No2 -in )c./o Threshold
Handover #ecision is #one in case of
"oa# of the servin( cell 2 Load,Threshold
3 CPIC$ 4c/No2 -in )c./o Threshold
'S selects the tar(et 50-AN cell +ase#
on measurement results
'S selects the tar(et 50-AN cell +ase#
on measurement results
$an#over comman# is sen# to 'SC
$an#over comman# is sen# to 'SC
'S is measurin( the 50-AN cells continuousl*
if the* are #efine# as a nei(h+or 6
0he num+er of )S' nei(h+or re%orte# coul# +e .17
#e%en#in( on the set value of %arameter
0##,MULT1RAT,R)P2RT 8061623def6.9:
0he loa# is measure# in the cell level +* com%arin(
the occu%ie# 0C$s to the availa+le 0C$s 820 s
interval use#9
"oa# 0hreshol# for S%eech Calls or 0rans%arent
Data inter1-A0 $an#over;
%tranHoThScT4dc 5Min Traffic Load T#H267
defa%lt 3 89:
-in)cnoThreshold 5Min CP1CH )C./2
Threshold67 defa%lt ;<= dB
Parameters are sent from the ,SC to the mo+ile
in the 'easurement Information messa(e
< NSN Siemens Networks Presentation / Author / Date
1SH2 2G -! 3G Para-eters
Parameter S%ecification name NSN %arameter -an(e Default value
min traffic loa# for s%eech call "=AD>0$-4S$="D>?=->S
C>IS>$=
utran$o0hSc0%#c 8"0SC9 01100 !0
minimum CPIC$ 4c/Io level 'IN>4CN=>0$-4S$="D min4cno0hreshol#
8'409
12/@0:< #, 11< #,
min interval +etween unsucc IS$=
attem%t
'IN>IN04-AA">,40&44N>
5NS5CC>IS$=>A004'P0
minInt5nsuccIs$o 85'I59 0@2<< s . s
threshol# for multi1-A0 'S Bsearch>C CSearchC 8BS-C9 0@1< 1< 8never9 rec: D
8alwa*s9
S%ecification name Parameter eE%lanation Aalue ran(e Note
?DD>-4P>B5AN0 In#icates the re%ortin( Cuantit* for 50-AN ?DD
cells
0F-SCP6
1F4C/N=
Not tuna+le6 ?iEe#
value 1
.)>S4A-C$>P-I= In#icates if .) cells ma* +e searche# when
,SIC #eco#in( is reCuire#
0 F no6
1 F *es
Not tuna+le6 ?iEe#
value 1
?DD>'5"0I-A0>-4P=-0IN) 0he num+er of cells from the access
technolo(*/mo#e ?DD that shall +e inclu#e# in
the measurement re%ort
0@. Not tuna+le6 ?iEe#
value 2
Bsearch>C>Initial In#icates the Bsearch value to +e use# in
connecte# mo#e +efore Bsearch>C is receive#
0 F use Bsearch>I6
1 F G 8alwa*s9
Not tuna+le6 ?iEe#
value 0
C
h
a
n
g
e
a
b
l
e
H
i
d
d
e
n
Handover Control
)S' IS$=
"oa# ,ase# $an#over to &CD'A
Cell Reselection
D NSN Siemens Networks Presentation / Author / Date
Cell Reselection 3G -! 2G
First ranking of all the cells based on
CPICH RSCP (WCDMA) and RSSI (GSM)
Rs CPICH RSCP ! Qhyst1
Rn R"le#(n) $ Qoffset1
First ranking of all the cells based on
CPICH RSCP (WCDMA) and RSSI (GSM)
Rs CPICH RSCP ! Qhyst1
Rn R"le#(n) $ Qoffset1
Rn (GSM) % Rs (WCDMA)
And
R"le# (GSM) %QrxlevMin
Rn (GSM) % Rs (WCDMA)
And
R"le# (GSM) %QrxlevMin
&es
'o
Cell re$selection
to GSM
Cell re$selection
to GSM
'eighbo(r WCDMA or GSM
cell calc(lation )ith offset
*ara+eter
Ser#ing WCDMA cell
calc(lation, )ith
h-steresis *ara+eter
./ starts GSM +eas(re+ents if
CPICH /c0'o 1 qQualMin ! sSearchRAT
./ starts GSM +eas(re+ents if
CPICH /c0'o 1 qQualMin ! sSearchRAT
SintraSearch
SinterSearch
SsearchRAT
CPICH EcNo
qQualMin
Second ranking onl- for WCDMA
cells based on CPICH /c0'o
Rs CPICH /c0'o ! 2h-st3
RnCPICH4/c0'o(n)$2offset3
Second ranking onl- for WCDMA
cells based on CPICH /c0'o
Rs CPICH /c0'o ! 2h-st3
RnCPICH4/c0'o(n)$2offset3 Cell re$selection to
WCDMA cell of highest
R #al(e
Cell re$selection to
WCDMA cell of highest
R #al(e
! NSN Siemens Networks Presentation / Author / Date
54 ranks the servin( cell an# the measure# nei(h+orin( cells to fin# out if
reselection shoul# +e ma#e
All the measure# suita+le cells 8S1criteria9 are inclu#e# in the rankin(:
Criteria for a suita+le cell 8S1criteria9 is #efine# as

&CD'A intra1freCuenc* nei(h+or cell;
CPIC$ 4c/No 2 AdjsQqualmin and CPIC$ -SCP 2 AdjsQrexlevmin
&CD'A inter1freCuenc* cell;

CPIC$ 4c/No 2 AdjiQqualmin and CPIC$ -SCP 2 AdjiQrexlevmin
)S' cell;
-Elev 2 Qrxlevmin
-ankin( is #one usin( Criteria -6 an# the 54 reselects to the cell with hi(hest -1
criteria: -1criteria is #efine# as;
?or servin( cell; -s F Qmeas,s H Qhsts

?or nei(h+orin( cell -n F Qmeas,n Qo!!setts,n
Bmeas is CPIC$ 4c/No for &CD'A cell an# -E"ev for )S' cell
)S' measurements can start when CPIC$ 4c/Io of servin( cell is +elow Ssearch_RAT H QqualMin
I NSN Siemens Networks Presentation / Author / Date
Cell Reselection List
GSM MS starts "C#MA -eas%re-ents if ;
RLA,C> 05+search,16 for 9>+search,1>3?
or
RLA,C! 05+search,16 for ?>+search,1>3<=
If6 for suita+le 5'0S cell
3 for a %erio# of < s;
CP1CH RSCP ! RLA,C @ 0##,+offset
CP1CH )c./o 0##,+-in
no %riorities
+etween
&CD'A
nei(h+ors
'easurement 5%#ates;
-"C>C value of the servin( cell
H least 7 stron(est non servin( )S' cells
at least ever* < s
check
an#
&CD'A cell
reselection
BCCH' ?DD>Bmin6 ?DD>Boffset
+search,1'
0::1<J 1J ?
"al#as$
0##,+-in'
120::: K7J 2J -<2 dB
0dd,+offset'
select alAaBs
8value is -infinitB6
Cell Re-selection Para-eters
Qsearch%& an# Qsearch%' #efine the threshol# for non1)P-S/)P-S 8res%ectivel*9 ca%a+le
54s to measure .) nei(h+our cells when a runnin( avera(e of the receive# #ownlink
si(nal level 8-"A>C9 of the servin( cell is +elow 801D9 or a+ove 8!11<9 the threshol#
Aalue 0 1 @ 7 D ! I 10 @ 1/ 1<
#,m 1I! 1I/ @ 1D/
AlAaBs
1D! 1D/ 1D0 @ 1</ Never
())%Qo!!set an# ())%*'+S%,!!set the non1)P-S/)P-S 8res%ectivel*9 ca%a+le 54s

a## this offset to the -"A>C of the )S' cells: After that the 54 com%ares the
measure# -SCP values of .) cells with si(nal levels of the )S' cells
Aalue 0 1 2 . @ ! @ 1/ 1<
#,m 1alwa*s 12! 12/ 120 @ 0 @ 2/ 2!
Al)a-s select
irres*ecti#e of
RSCP #al(e
Reselect in case
RSCP % GSM R56e#
(R6A4C) !37d8
If R6A4C 1 $9: ./
starts ;G
+eas(re+ents
./ al)a-s
+eas(res ;G cells
If R6A4C % $<= ./
starts ;G
+eas(re+ents
RLA,C
Cell Re-selection )&a-4le' AeaCer "C#MA
/on GPRS case
t
Serving GSM Cell
/eigho%r "C#MA Cell
4c/No
-SCP/
-"A>C
< sec:
Cell re1selection to &CD'A
0##,+-inF0
112 #,
0##,+offset F 1! #,
+search,1 F
1I! #,m
'easurements starts 8servin( cell9
'inimum Bualit* -eCuirement for &CD'A
)c./9
RSCP
GSM -! "C#MA
GSM -! "C#MA
-'&-H +S-' ! RLA,C @ 0##,+offset
$
-'&-H .c/0o 0##,+-in
1dle Mode
1dle Mode
Cell Re-selection )&a-4le' stronger "C#MA
GPRS case
t
Serving GSM Cell 5Best6
/eigho%r "C#MA Cell
4c/No
-SCP/
-"A>C
< sec:
Cell re-selection to "C#MA
0##,+-in
F 120 #,
0##,GPRS,+offset
F ! #,
+search,P
F 1I! #,m
RLA,P
'easurements starts 8servin( cell9
'inimum Bualit* -eCuirement for &CD'A
)c./9
RSCP
Connected Mode
Connected Mode
GSM -! "C#MA
GSM -! "C#MA
1. NSN Siemens Networks Presentation / Author / Date
HoA to avoid 4ing 4ong D
&hen %hone is cam%e# on .)6 )S' measurements can start when CPIC$ 4c/Io of
servin( cell is +elow Ssearch_RAT H QqualMin:
&hen %hone is cam%e# on )S'6 cell reselection to .) is %ossi+le if CPIC$ 4c/Io of the
can#i#ate is a+ove FDD_Qmin:
0herefore6 to avoi# %in( %on(s +etween .) an# )S' the followin( con#ition shoul# +e
met;
0##,+-in !3 +E%alMin@Ssearch,RAT
2>(alMin$?7 d8
Ssearch4RA@: d8
CPICH /c0Io
FDD42+in %
$?3 d8
QqualMin +Ssearch_RAT
t
Ca+*ing on ;G Ca+*ing on GSM Ca+*ing on ;G
1/ NSN Siemens Networks Presentation / Author / Date
PUSH AMR
Push Aoice .)12)
1< NSN Siemens Networks Presentation / Author / Date
max1 allo#ed U. Tx 'o#er
(e.g. 21 dBm) 2
*smU.Tx'#rThrA3+;
?'C)J 170::0J 1J -3 dB
here' - F9 dB G
0orced Handover for AMR *oice Call
?eature can +e use# to %ush
.) A'- calls to 2)
4Etreme %arameter settin( for IS$=
tri((er cause L54 0E %owerM 8event 7A9
WCDMA
GSM
AMR oice call se!u" in #G
$orce% han%oer
!o GSM
&''(
)E RNC
RRC* Ra%io+earerSe!u"
RRC* Ra%io+earerSe!u"Co,"le!e
RRC* Measure,en!Con!rol
RRC* Measure,en!Re"or! -een! .A/
FMC! SMcauseT"#$r%&
FMC! sm%'T"#$rThrAMR
IS$= measurements 3 $=
to )S'
54 imme#iatel* answers
with 'easurement -e%ort
H4%shI -eans Handover7 not #irected-RetrB G
-emem+er;
FA;
U) T& 4oAer !
asol%te threshold
*S3causeTx'4+U5
?'C)J 0 8no9 / < 5Bes6
0orced Handover for AMR *oice Call
?'C); )S'cause0EPwr5"
-an(e an# ste%; 0 8?alse96 1 80rue9
In#icates whether a han#over to )S' cause# +* hi(h 54 0N %ower level is ena+le#: 0he
han#over is ena+le# when the value of the %arameter is O5se#L
0o ena+le feature6 settin( must +e 1 80rue9
?'C); )sm540EPwr0hrA'-
-an(e an# ste%; 170::0 #,
0his %arameter #etermines the 54 0N %ower threshol# for a CS voice connection: If the
han#over to )S' cause# +* hi(h 54 0N %ower level is ena+le#6 the -NC starts inter1-A0
8)S'9 measurements when the 54 0N %ower reaches this threshol#: 0he 54 0N %ower
threshol# is relative to the maEimum 0N %ower level an 54 can use on the DPC$ in the cell 8or
the maEimum -? out%ut %ower ca%a+ilit* of the 546 whichever is lower
0o ena+le feature6 settin( must +e K70 #,
1D NSN Siemens Networks Presentation / Author / Date
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NSN 2G-3G Parameter Setting

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How can load balancing between 2G and 3G networks be achieved?

What factors influence cell reselection between 2G and 3G networks?

1 NSN Siemens Networks Presentation / Author / Date

I insert classification level

Load Base Handover 2G-3G

Criteria for a suita+le cell 8S1criteria9 is #efine# as

&CD'A inter1freCuenc* cell;

?or servin( cell; -s F Qmeas,s H Qhsts

())%Qo!!set an# ())%'+S%,!!set the non1)P-S/)P-S 8res%ectivel9 ca%a+le 54s

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