PDF- call drop analysis in lte, -KPI Analysis - Call Drop Rate Improvement by Parameter Change in 3G UMTS

Description

Call Drop Rate improvement by Parameter change in 3G UMTS/WCDMA Huawei Network Call drop rate in 3G WCDMA is important thing to optimize in our Network

There are many ways to improve drop call such as hardware problem detection,

Fix Coverage overlapping,

Fix Missing neighbor and Parameter changing

You can refer to previous chapter about Drop Call Rate Improvement to know step by step about call drop reasons and optimization

What I want to share now is about how to improve drop call rate in 3G UMTS/WCDMA by Parameter adjustment

Before go to the topic we need to know call drop reasons in 3G UMTS:

You need to make sure first no coverage overlapping and can be solved by Physical optimization(Antenna down tilt)

After you clear main issue for above reasons then you can go to Parameter optimization to reduce drop call rate

Here are recommended Parameter to reduce call drop rate in 3G UMTS/WCDMA for Huawei Network

If you work for other Vendor you can refer to your document and looking for same Parameter

Increase HOASUTMR HOASUTMR meaning HO active set update response timer,

A timer to RNC wait for the response to active set update in soft handover procedure

You can improve call drop in 3G by increase this parameter

Increase Parameter 2D/2F The idea of this parameter setting is to make fast Handover to GSM network

You can increase 2D/2F parameter and improve your drop call in 3G by moving traffic to GSM network

Detail parameter need to be changed are as follow:

-100 to

-100 to

-100 to

-107 to

-107 to

when Ec/No is used as the measurement quantity for interRAT measurement,

the RNC sends the signaling to activate compressed mode and start inter-RAT measurement,

if the UE reports the event 2D when the measured value is smaller than the value of this parameter

Recommended value (default value):

when Ec/No is used as the measurement quantity for interRAT measurement,

the RNC sends the signaling to deactivate compressed mode and stop inter-RAT measurement,

if the UE reports the event 2F when the measured value is larger than the value of this parameter

Recommended value (default value):

when RSCP is used as the measurement quantity for interRAT measurement,

the RNC sends the signaling to activate compressed mode and start inter-RAT measurement,

if the UE reports the event 2D when the measured value is smaller than the value of this parameter

Recommended value (default value):

when RSCP is used as the measurement quantity for interRAT measurement,

the RNC sends the signaling to deactivate compressed mode and stop inter-RAT measurement,

if the UE reports the event 2F when the measured value is larger than the value of this parameter

Recommended value (default value):

when Ec/No is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to activate compressed mode and start inter-RAT measurement,

if the UE reports the event 2D when the measured value is smaller than the value of this parameter

Recommended value (default value):

when Ec/No is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to activate compressed mode and start inter-RAT measurement,

if the UE reports the event 2D when the measured value is smaller than the value of this parameter

Recommended value (default value):

when Ec/No is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to deactivate compressed mode and stop inter-RAT measurement,

if the UE reports the event 2F when the measured value is larger than the value of this parameter

Recommended value (default value):

when Ec/No is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to deactivate compressed mode and stop inter-RAT measurement,

if the UE reports the event 2F when the measured value is larger than the value of this parameter

Recommended value (default value):

when RSCP is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to activate compressed mode and start inter-RAT measurement,

if the UE reports the event 2D when the measured value is smaller than the value of this parameter

Recommended value (default value):

when RSCP is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to activate compressed mode and start inter-RAT measurement,

if the UE reports the event 2D when the measured value is smaller than the value of this parameter

Recommended value (default value):

when RSCP is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to deactivate compressed mode and stop inter-RAT measurement,

if the UE reports the event 2F when the measured value is larger than the value of this parameter

Recommended value (default value):

when RSCP is used as the measurement quantity for inter-RAT measurement,

the RNC sends the signaling to deactivate compressed mode and stop inter-RAT measurement,

if the UE reports the event 2F when the measured value is larger than the value of this parameter

Recommended value (default value):

hope can help you best network

You might also Need to know: