Layering HO Parameters Adjustment for Traffic Offloading

7/26/2019 Layering HO Parameters Adjustment for Traffic Offloading

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HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Strategy Optimization Report

Layering HO Parameter

Huawei Performance TeamMay 8th, 2012


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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential

Layering HO Parameter Setting

Parameter Setting

No. HO ParameterHO Parameter(Old Setting)

HO Parameter(New Setting)

HO Parameter(Aggresive

Setting)GSM DCS GSM DCS GSM DCS

1 ;d*e H< /. 9%=.;> Threho!d 12 1 10 10 10 10

2 ;d*e H< D. 9%=.;> Threho!d 1 20 1 18 1 14

7 #nter!ayer H< Threho!d 74 24 74 27 74 20

#nter!ayer H< Hyteri 2 2 2 2 2 2

4 Min /. Power on H< Candidate Ce!! 0 0

Min D. Power on H< Candidate Ce!! 14 14 12 12 12 12

No. HO Parameter

HO Parameter(Old Setting)

HO Parameter(New Setting)

HO Parameter(Aggresive

Setting)

GSM DCS GSM DCS GSM DCS1 Mininum -cce .e'e!


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ra!" # $%lin& 'ntereren"e Prole

?ee$ 18 9eu!t

NE Name

GS!""# I$ %&

'GS!""# I$ (&'

GS!""# I$ ' D Cell)#* G Cell )#*

DT+ac)#*

GT+ac)#*

D TCHD+o- )#*

G TCHD+o- )#*

Im-lementLae+in/ HO

St+ate/

$SC Sli-i ''.0! 1'.'2 3.!2 0(.24# %'.1!# 2!.((# 1".'0# ''.'4# ((.(!#

$SCAt+ium 1!."" 0.(1 "."' 03.13# %4.21# 2!.3"# 1".1"# '".0(# (!.%0#

$SC5a6awali 13.%2 !.(1 %.%" 0(.!0# %'."(# 34.1%# 43.22# '0."1# (%.!3#

$SC e+ua4 1'.43 44.0% %.1" '!.34# (".4!# 20.13# 1%.21# '3.(4# (4.'!# 7ini8hed

$SCIndomo9il 11.%" 3.!' %.!1 0!.4%# %".32# 3(.(%# 4'.'2# %'.4%# 0(.32#

$SC T$S % 4%.21 %.0" 4.!4 '!.(%# (".'2# 2".2"# 1!.%"# 04."3# %3.!1#

$SC Gam9i+ 41.30 (.3% 1.31 00."1# %%.!3# 2!.%3# 1".01# 0'.%(# %(.00# 7all9ac:

$SCWi8mul4 44.'1 (.34 ".4% 0'.23# %(.11# 20."%# 1%.!2# %2.%%# 01.02#

$SC e+ua1 4".0" 1.%( 4."4 (!."0# '".!(# 02.0(# %1.%0# (".%!# '!.04# 7ini8hed

$SC$ua+an4 3.21 1.'2 ".24 ''.30# ((.4(# 2(.'!# 1'.(4# '%.11# (0.23#

$SC$ua+an% 3.14 1.(! ".42 00.02# %%.%%# 23.24# 14.1!# '%.''# (0.('#

$SCT$S4 0.10 ".21 "."! '!."0# (".!(# 0!.3!# %".44# '(.4!# ('.34#

$SC T$S ( '.2" ".1! "."4 (".13# '!.21# ''.%0# ((.0(# %'.33# 0(.41# 7ini8hed

$SC$ua+an1 '.(' 4.33 "."( '(.''# ('.('# 2%.(%# 10.'2# %3.!3# 04."1#

$SC T$S 1 %.02 ".'4 "."4 ((.%2# ''.0%# '3.!1# (4."3# %%.""# 02.""#

$SCCihuni 1.3" ".2( "."1 ((.0"# ''.("# 00.%'# %%.0'# (2.01# '1.%3# 7ini8hed

$SCT$S' 1.'! "."( "."1 ((.""# '0.""# 02."%# %1.!2# '%.33# (0.41# 7ini8hed


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Parameter HO Parameter Des"ri%tion

Concept :

1.For GSM O to !CS : "ill be triggering b# Inter $a#er O

%.For !CS O to GSM : "ill be triggering b# &'ge O

'nter Layer Handover

$a#er O t(res(ol' a'justment

5ei*hbor ce!! criterion9ecei'e !e'e! @A!ayer H< threho!d B !ayer H< hyterei

)riggering

Ta+/et cell ;Lae+ o< the Ta+/et cell i8 lowe+ than the 8e+=in/ cell.

5ecei=e le=el o< the Ta+/et cell > 'nter *layer "ell t+res+old , 'nter*layer "ell +ysteresis.


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Parameter HO Parameter Des"ri%tion

-DG- Handover

Ed/e HO C+ite+ion;In N 8econd8, when the+e a+e ? 8econd8 that the DL o+ UL 8i/nal le=el i8 lowe+ than

the -dge HO t+res+old, Then the c+ite+ion i8 met and Ed/e HO occu+8.

5e@ui+ement8


7/20HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential

Layering HO Parameter * Old Settings

GSM Co'era*e

DCS Co'era*e

GSM to DCS

#nter .ayer H< criteria for er'in* ce!! in theadutment tate

GSM EA FF d)m 6DCS mi*ht be 8 d)m

#nter !ayer wi!! tri**erin* when

DCS EA 87 d)m

The ;DG; H< wi!! tri**erin*

-t thi (oint GSM mi*ht be 87 d)m

conider ti!! *ood i*na! tren*th

DCS EA 87 dBm

DCS to GSM

DCS EA &0 dBm

GSM band a((ro%imate!y tron*er

than DCS and F d)m"


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GSM Co'era*e

DCS Co'era*e

GSM to DCS




DCS EA 84 d)m




DCS EA 84 dBm

DCS to GSM

DCS EA &2 dBm


than DCS and F d)m"

New Layering HO Parameter * Normal Settings


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New Layering HO Parameter * Aggressive Settings

GSM Co'era*e

DCS Co'era*e

GSM to DCS




DCS EA 88 d)m




DCS EA 88 dBm

DCS to GSM

DCS EA &4 dBm


than DCS and F d)m"


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MSC Meruya/0 1P'

2esult


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Meruya/0 * HO Causes

O Causes !istribution

5elation

Sum o

Layering HO Parameters Adjustment for Traffic Offloading

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