hari ini harus belajar menghitung KPI.
Sebenarnya KPI itu apa sih? ko bingung aku ni..
alhamdulilah aku dapat gambaran dikit..
ternyata KPI itu terdiri dari:
1. CSSR (CALL SETUP SUCCESS RATE)
Definition: Rate of calls going until TCH successful assignment
2. SCR (SUCCESSFULL CALL RATE)
Definition: Rate of calls going until normal release that is not interrupted by SDCCH DROP, neither by assignment failures, and neither by CALL DROP.
3. CALL DROP RATE (CDR)
Definition: Rate of all losses of TCH connections during a call in relation to the number of successful Call Setups
4. HOSR (HAND OVER SUCCESS RATE)
Definition: Successful internal and external outgoing handovers of total number of internal and external outgoing handover attempts
5. PSR (PAGING SUCCESS RATE)
Definition: Rate of successful paging attempts of total number of paging attempts. The formula is based on NSS point of view (based on MSC or LAC)
6. LOCATION UPDATE SUCCESS RATE
Definition: Successful location update attempts of total number of location update attempts. The formula is based on NSS point of view.
7. SDCCH BLOCK RATE
Definition: SDCCH congestion of total number of SDCCH seizure attempts
8. SDCCH DROP RATE
Definition: Dropped SDCCH connections of total number of SDCCH connections without TCH congestion.
9. TCH ASSIGNMENT BLOCK RATE
Definition: Rate of TCH unsuccessful seizures during assignment procedure due to congestion
10. TCH Assignment Failure Rate (exclude blocking)
Definition: Rate of RTCH seizure failed (system + radio) during normal assignment procedure over the total amount of RTCH request for normal assignment procedure
11. EMD (Erlang Minute per Drop)
Definition: Total of Erlang minutes (TCH occupation) in one period measurement per drop call (after TCH Assignment).
12. TCH Availability
Definition: Available TCH of total number of defined TCH
13. RACH Success Rate
Definition : Rate of Successful RACH over the total number of channel required message received
