Dual Band Network Handover Algorithm Mapping

8/11/2019 Dual Band Network Handover Algorithm Mapping

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Huawei Confidential

Dual band network handoveralgorithm mapping



1

•ALU netwo rk cel l type is single,

no layer is div ided.

•ALU enable the preferred band

handov er algor i thm (cause

21),and the preferred band is

DCS1800.

•After swap,Huawei set the

GSM900 layer3,the DCS1800layer2.

Dual band handover algorithm comparison



2 Page2

Serving Cell Neighboring Cell

[TA Threshold](s)

Time

TA(s)

HandoverTriggering

[TA Threshold](n)

or

Handover Triggering ZoneTA(n)

TA HO parameters mapping result:

TA handover algorithm mapping

Huawei TA HO is triggered when:

Actual TA >= [TA Threshold](s).

Candidate cell (except the

serving cell) exists and available.

HW Parameter

NameParameter ID

ALCATEL B10-

Parameter

ALCATEL B10-Parameter Mapping

Formula

TA HO Allowed TAHOEN

HO_INTERCELL_ALLOW

ED/

enableOptHandoverProce

ssing.enableMSDistanceP

rocess

If HO_INTERCELL_ALLOWED=ENABLE

and

EnableOptHandoverProcessing={xxx,enabl

eMSDistanceProcess}，Huawei=YES,else,Huawei=NO.

TA Threshold TALIMIT hoThresholdDistParam.mSRangeMax.timeadv Huawei=Alcatel



3 Page3

Serving CellNeighboring Cell

Huawei UL/DL Bad Quality HO is

triggered when:

To AMR: Actual Interference >=

Emergent AMR Qual Threshold.

To Non-AMR: Actual

Interference >= Emergent Qual

Threshold.

RX_LEV_DL (n) > RX_LEV_DL

(s)+ Inter-cell HO hysteresis(s->n)

-BQ HO Margin(s->n).

Candidate cell exists and

available.

BQ handover algorithm mapping

Parameter Name Parameter ID ALCATEL B10-ParameterALCATEL B10-Parameter Mapping

Formula

BQ HO Allowed BQHOENHO_INTERCELL_ALLOWED/

EN_RXQUAL_UL

If HO_INTERCELL_ALLOWED=ture&eN-

RXQUAL-UL=ture,Huawei=YES,else,Huawei=NO

DL Qual.Threshold DLQUALIMIT

HoThresholdQualParam.rxQua

lDL/

hoOffsetQualParam/

InactiveHoppingType

If InactiveHoppingType=noHopping，【DL

Qual.Threshold】=HoThresholdQualParam.rxQualDL；else，【DL

Qual. Threshold】=HoThresholdQualParam.rxQualDL+hoOffsetQual

Param

UL Qual.Threshold ULQUALIMIT

HoThresholdQualParam.rxQua

lUL/

hoOffsetQualParam/

InactiveHoppingType

If InactiveHoppingType=noHopping，【UL Qual.

Threshold】=HoThresholdQualParam.rxQualUL；else，【UL Qual. Threshold】

=HoThresholdQualParam.rxQualUL+hoOffsetQual

Param

DL Qual.Limit for AMR FRDLQUALIMITAMRF

R

L_RXQUAL_DL_H_AMR/hoOffsetQualParam/

InactiveHoppingType


Qual.Limit for AMR FR】=L_RXQUAL_DL_H_AMR；else，【DL Qual.Limit

for AMR FR】

=L_RXQUAL_DL_H_AMR+hoOffsetQualParam

DL Qual.Limit for AMR HRDLQUALIMITAMRH

R

L_RXQUAL_DL_H_AMR/

hoOffsetQualParam/

InactiveHoppingType


Qual.Limit for AMR HR】

=L_RXQUAL_DL_H_AMR；else，【DL Qual.Limit

for AMR HR】

=L_RXQUAL_DL_H_AMR+hoOffsetQualParam

UL Qual.Limit for AMR FRULQUALIMITAMRF

R

L_RXQUAL_UL_H_AMR/

hoOffsetQualParam/

InactiveHoppingType

If InactiveHoppingType=noHopping，【UL

Qual.Limit for AMR FR】

=L_RXQUAL_UL_H_AMR；else，【UL Qual.Limit

for AMR FR】=L_RXQUAL_UL_H_AMR+hoOffsetQualParam

UL Qual.Limit for AMR HRULQUALIMITAMRH

R

L_RXQUAL_UL_H_AMR/

hoOffsetQualParam/

InactiveHoppingType

If InactiveHoppingType=noHopping，【UL

Qual.Limit for AMR HR】=L_RXQUAL_UL_H_AMR；else，【UL Qual.Limit

for AMR HR】

=L_RXQUAL_UL_H_AMR+hoOffsetQualParam

BQ HO parameters mapping result:



4

Serving Cell Neighboring Cell

126dB 119dB

126-119=7dB>5dB

PBGT HOThreshold

Time

Path Loss (dB)

5

HandoverTriggering

P / N

P: Watch Time

N: Valid Time

Huawei PBGT HO is triggered when:

Path loss (s) –

Path loss (n) > PBGTHO Threshold (s->n) and 16bits(n) <16bits (s) following P/N rules

Layer & level (n) = Layer & level (s)

Candidate cell exists and available

PBGT handover algorithm mapping

Parameter Name Parameter ID ALCATEL B10-Parameter ALCATEL B10-Parameter Mapping Formula

PBGT HO Allowed PBGTHOEN

HO_INTERCELL_ALLOWED

/

EnableOptHandoverProcessi

ng.enablePwrBudgetHandov

er

IF HO_INTERCELL_ALLOWED=ENABLE and

EnableOptHandoverProcessing={enablePwrBudgetHa

ndover ，xxx}，Huawei=YES,else,Huawei=NO.

PBGT HO

ThresholdPBGTMARGIN

HoMargin(0,n)/

hoMarginAlcatelInnerOffset【PBGT HO Threshold】=HoMargin(0,n)+hoMarginAlcatelInnerOffset+64

PBGT HO parameters mapping result:



7

The following table is the mapping rule for handover

parameters

Handover parameters mapping result

Dual Band Network Handover Algorithm Mapping

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