Purpose

The reason for this rule is to determine a standard arrangement of BSS radio system KPIs covering both the circuit and parcel exchanged areas with a specific end goal to adjust the measurements utilized on the Ericsson BSS. The record depicts the abnormal state KPIs, portrayal on second level estimations can be found in Reference beneath

The Radio Network KPIs for BSS utilized inside Ericsson are being adjusted inside Ericsson, for instance NetQB will slowly adjust to the recipes in this record. To incorporate new KPIs in NetQB will however oblige that the highlight a KPI is in view of will have particular entrance in the client systems.


Scope of the Radio

The accompanying apply to the extent of the proposed radio system KPIs:

The KPIs mirror the end-client impression of the execution of BSS the extent that this would be possible as opposed to the framework view. The KPIs are however just in light of what can be measured in BSS, for GPRS end-to-end KPIs on administration level need different sorts of estimations and are portrayed e.g. by GETEP

The KPIs are conceivable to gather from STS measurements and are planned on counter level.

The KPI definitions in this form of the record are characterized for the R10 and R11 R12 and 06B discharges, individually. (There were no progressions to KPI definitions in the 06A discharge).

The KPIs are figured on cell level; they can however obviously be amassed on BSC or framework level. It has been remarked every KPI if a less difficult form of the equation can be utilized if connected on BSC or framework level.

The proposition is to characterize and redesign KPIs in light of new highlights at an early stage to permit the KPIs to be utilized as of now as a part of the advancement ventures, in FOA exercises and acknowledgement testing. This implies all KPIs have not yet been tried and completely assessed in live systems yet. This is the reason some KPIs are not yet prescribed to use for system checking until they have demonstrated to work the proposed way and have a solid importance for the supporter recognition.

Structure of This Document

The work to characterize and enhance the BSS KPIs is consistent. New KPIs are included as new highlights or administrations are presented, different KPIs are enhanced in the wake of being assessed in live systems.

The point is to incorporate KPIs and counters for new discharges even before GA, so some KPIs may not yet be completely assessed in live systems. The status of the KPIs will be upgraded ceaselessly in impending renditions of this report.

Comments on the formulas

Formulas have been written for R10, R11 and R12 if they differ

PERLEN stands for measurement period length in STS (minutes), and is available as a parameter in STS.

NB_CELLS means number of cells for one BSC

Recipes that incorporate handovers have considered handovers both to BSC inward and outer neighbors. If information is gathered from one BSC it is impractical to acquire the approaching handovers from outer cells, so then all handovers for outside cells could be overlooked.

For recipes taking care of handovers client characterized summation counter have been utilized. The summation counters are not piece of the BSC STS counters, but rather ought to made on cell level in a post-transforming instrument. The summation counters for both inner and outer cell relations are accessible in the NWS database and report generator in OSS,

Note: The names utilized as a part of NWS for the summation counters have been utilized as a part of this record and are portrayed in BSDDB

The STS item sorts that contain counters for BSC interior cell relations are NCELLREL and NICELASS, and for BSC outside cell relations NECELLREL and NECELASS.

The accompanying recipes demonstrate how the summation counters are computed as a total over all inside or outside cell relations:


ATT= HOVERCNT
SUCC=HOVERSUC
REV=HORTTOCH
LOST=HOVERCNT-HOVERSUC-HORTTOCH
ABSUCC=HOSUCBCL
AWSUCC=HOSUCWCL

The accompanying summation counters are utilized for each cell as a part of the BSC as the total over all inside or outside cell relations:

SUMOHOSUCC Sum of Successful Internal Handovers (Outgoing Handover)

SUMOHOSUCC = NCELLREL.HOVERSUC

SUMOABSUCC Sum of Successful Internal Assignment Handovers to Better Cell (Outgoing Handover)

SUMOABSUCC = NICELASS.HOSUCBCL 

SUMOAWSUCC Sum of Successful Internal Assignment Handovers to Worse Cell (Outgoing Handover)

SUMOAWSUCC = NICELASS.HOSUCWCL

SUMIHOSUCC Sum of Successful Internal Handovers (Incoming Handover)

SUMIHOSUCC = NCELLREL.HOVERSUC

SUMIABSUCC Sum of Successful Internal Assignment Handovers to Better Cell (Incoming Handover)

SUMIABSUCC = NICELASS.HOSUCBCL

SUMIAWSUCC Sum of Successful Internal Assignment Handovers to Worse Cell (Incoming Handover)

SUMIAWSUCC = NICELASS.HOSUCWCL

SUMEIHOSUCC Sum of Successful External Handovers (Incoming Handover)

SUMEIHOSUCC = NECELLREL.HOVERSUC

SUMEIABSUCC Sum of Successful External Assignment Handovers to Better Cell (Incoming Handover)

SUMEIABSUCC = NECELASS.HOSUCBCL

SUMEIAWSUCC Sum of Successful External Assignment Handovers to Worse Cell (Incoming Handover)

SUMEIAWSUCC = NECELASS.HOSUCWCL

SUMEOHOSUCC Sum of Successful External Handovers (Outgoing Handover)

SUMEOHOSUCC = NECELLREL.HOVERSUC

SUMEOABSUCC Sum of Successful External Assignment Handovers to Better Cell (Outgoing Handover)

SUMEOABSUCC = NECELASS.HOSUCBCL

SUMEOAWSUCC Sum of Successful External Assignment Handovers to Worse Cell (Outgoing Handover)

SUMEOAWSUCC = NECELASS.HOSUCWCL

SUMOHOATT Sum of Internal Handover Attempts (Outgoing Handover)

SUMOHOATT = NCELLREL.HOVERCNT

SUMEOHOATT Sum of External handover Attempts (Outgoing Handover)

SUMEOHOATT = NECELLREL.HOVERCNT

SUMOHOLOST Sum of MS Lost Internal Handovers (Outgoing Handover)

SUMOHOLOST = NCELLREL.HOVERCNT - NCELLREL.HORTTOCH -
NCELLREL.HOVERSUC

SUMEOHOLOST Sum of MS Lost External Handovers (Outgoing Handover)

SUMEOHOLOST = NECELLREL.HOVERCNT - NECELLREL.HORTTOCH
- NECELLREL.HOVERSUC

For GSM to UTRAN handovers similar summation counters are created on cell level, all counters are located in the object type NUCELLREL:

SUMHOVERCNTUTRAN Sum of the counter HOVERCNTUTRAN over all GSM to UTRAN cell relations (outgoing handover)

SUMHOVERCNTUTRAN = NUCELLREL.HOVERCNT

SUMHOVERSUCUTRAN Sum of the counter HOVERSUCUTRAN over all GSM to UTRAN cell relations (outgoing handover)

SUMHOVERSUCUTRAN = NUCELLREL.HOVERSUC

SUMHOLOSTUTRAN Sum of HOVERCNTUTRAN - HOVERSUCUTRAN HORTTOCHUTRAN over all GSM to UTRAN cell relations (outgoing handover)

SUMHOLOSTUTRAN=NUCELLREL.HOVERCNT-NUCELLREL.HORTTOCH NUCELLREL.HOVERSUC

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