3G PDP Cut Off Degradation

[adewijaya]

Dear all members and experts,

I have a big problem with 3G KPI data on PDP Cut Off, some degradation occured on our RNC Huawei with SGSN NSN, does anyone having some experiences?

Note : (here is the counter)


PDP Cut Off Ratio = 100%* (Total Undesired PDP Deactivation/Total active PDP)

Total Undesired PDP Deactivation:
Success_undesired_Deactivation / Deactivation_Success_ratio*

* deactivation Success Ratio:
IU_SUCC_NWR_PDP_CON_DEACT/(IU_SUCC_NWR_PDP_CON_DEACT+
IU_FAIL_NWR_PDP_CON_DEACT)

Success_undesired_Deactivation:
IU_NWR_PDP_DEACT_38+ IU_NWR_PDP_DEACT_39+ IU_NWR_PDP_DEACT_OTH

Total Active PDP:
(PEAK_ACTIVE_IU_PDP_CONTEXTS+ MIN_ACTIVE_IU_PDP_CONTEXTS)/2 +
IU_SUCC_MO_PDP_CON_ACT+ IU_MO_SEC_PDP_ACTIVATION_SUCC