Slide 1

Event ANALYSIS - ACCESSIBILITY

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Drop reason: All of the RRC setup fails are in very poor Radio Condition & poor coverage, there is no dominant server out of coverage area, setup fails are under exclusion.

Recommendation: Required new site to fill the coverage hole.

RRC Connection setup fail

RRC Fail EventRRC Failure

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PROBLEM ANALYSIS - RETAINABILITY

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Drop reason: All of the RRC drops are in very poor Radio Condition & poor coverage, there is no dominant server as out of coverage area, drops are under exclusion.

Recommendation: Required new site to fill the coverage hole.

RRC Connection drop

Drop Call Event

Call Drop

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PROBLEM ANALYSIS - HANDOVER

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Handover FailureDrop reason: Most of the HO failure are due to poor Radio Condition & poor coverage, under exclusion.

Drop Call EventHO Failure

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PROBLEM ANALYSIS - CSFB

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Drop reason: Initiated Extended service request for CSFB & RRCConnection released successfully from LTE network, dropped in UMTS due to poor coverage, UE is sending continuous measurement report in uplink but due to poor coverage not able to find the dominant server to give handover and call dropped suddenly.

CSFB FailureCSFB Failure

CSFB Setup Failure

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