The document discusses keeping traffic on the 3G network and reducing congestion on the 2G network for Vendor Huawei. It recommends applying parameters to the RNC level to keep traffic on 3G by changing the default command from -14/-12 to -16/-14. The result was that traffic on the BSC reduced and traffic on 3G increased, improving the key performance indicator for voice traffic.

1. Keep traffic on 3G network
Reduce congestion on 2G network
Vendor Huawei
Prepared by Chhourn Puthi Ratana (Smart Axiata Cambodia)
Date: 16 Sep 2019

2. Issue:
We use concentric cell and has high congestion on 2G network as we lack of 2G frequency. We
need to move traffic to 3G as it has better voice quality
Action:
Apply parameter on RNC level to keep traffic on 3G
Command: default is -14/-12, change to -16/-14
SET UINTERFREQHOCOV:LOGICRNCID=6,INTERFREQCSTHD2DECN0=-
16,INTERFREQCSTHD2FECN0=-14,INTERFREQR99PSTHD2DECN0=-18,INTERFREQHTHD2DECN0=-
18,INTERFREQR99PSTHD2FECN0=-16,INTERFREQHTHD2FECN0=-16,TARGETFREQCSTHDECN0=-
14,TARGETFREQR99PSTHDECN0=-16,TARGETFREQHTHDECN0=-16,USEDFREQCSTHDECN0=-
14,USEDFREQR99PSTHDECN0=-16,USEDFREQHTHDECN0=-16;
Result:
Traffic on BSC reduces and Traffic on 3G increase.

3. KPI Voice Traffic