Call Drop Analysis

BSC Timer Change / MUDASSIR HUSSAIN / 6/1/2011BSC Timer Change MSBSCN8IRANCELL / 01-May-2010Soc Classification level # Nokia Siemens NetworksSoc Classification level # Nokia Siemens NetworksPresentation / Author / Date

TCH Drop Rate TCH_RF_OLD_HO (c1014) .TCH_RF_OLD_HO (c1014) - Number of TCH transaction failures due to a radio failure of the old channel during a TCH handover This counter is updated when TCH transaction fails and TCH is released in the Radio Resource Manager due to radio failure (handover failure) of the old channel during handover attemptRecommendations for improvement of TCH_RF_OLD_HO & TCH_Abis_fail_call by optimising BSC timer value:Note: T10 > T3107 and T10 > T3103. T10 should be at least 2 sec longer than T3107 and T3103T3107 --Supervision of the assignment procedureT3103 Supervision of the internal handover procedureT9113 Supervision of the external handover procedure in the target BSCT10 Supervision of the assignment procedureDefault valuesT3107 - 6secT3103 6secT9113 13secT10 8secRecommended ValuesT3107 7.99secT3103 7.99secT9113 15secT10 10secSoc Classification level # Nokia Siemens NetworksPresentation / Author / Date

T10 Supervision of the assignment procedure

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date T3103 Supervision of the internal Handover procedure

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date

T9113 Supervision of the External Handover procedure in the Target BSC

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date

T3107 Supervision of the Assignment Procedure

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date TCH DROP :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date TCH DROP :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date HOSR :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date HOSR :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date TCH_RF_OLD_HO :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date TCH_Abis_Fail_Call:-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date TCH Congestion Time:-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date CSSR :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date SD DROP :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date Drop per Erlang :-

Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date Soc Classification level # Nokia Siemens NetworksPresentation / Author / Date Soc Classification level # Nokia Siemens Networks