SDCCH Congestion Analysis ZTE

[ABDOO]

-Hardware:
SDCCH Availability Rate=100*(C900060122/(C900060122+C900060123))
Average number of available SDCCH
Average number of unavailable SDCCH
-Traffic load:
SDCCH Traffic= C900060124/3600
SDCCH busy time
TCH Congestion
causes the high SDCCH usage:
Check Call Setups:
Check amount of SMS. Check and verify with Core engineers SMS Center parameterization.
Number of SMS on SDCCH UL=C901150016
Number of SMS on SDCCH DL=C901150017
Number of SMS on TCH UL=(C901150018+C901150020)
Number of SMS on TCH DL=(C901150019+C901150021)
Check LAU/RAU requests:
-Site position: LAC redesign and CRH
-Feature: SDCCH dynamic ,immediate assignment on TCH
- Data Configuration: T3212, RXLEV_ACCESS_MIN, MAX Retrans, power balance
- Interference on the Um interface:
C901230055:Mean number of idle SDCCHs with interference band 0
C901230056:Mean number of idle SDCCHs with interference band 1
C901230057:Mean number of idle SDCCHs with interference band 2
C901230058:Mean number of idle SDCCHs with interference band 3
C901230059:Mean number of idle SDCCHs with interference band 4
C901230060:Mean number of idle SDCCHs with interference band 5
-Increase the number of SDCCH:
grade of service 2% TCH 0.5% SDCCH, Daily average for SDCCH cong for month