ZTE WCDMA RRC Fail Counter Optimisation : Clive Mangwiro Counter Name
Sub Counter C310080064
C310080063
Number of failed RRC connection preparation, NodeB C310080065
C310080067
C310080066
Number of failed RRC connection preparation, Due To Admission Control
C310080069
Number of failed RRC connection preparation, Due To UL Interfere
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C310080077
C310080076
Number of failed RRC connection preparation, Due To Trans
C310080078
C310080079
C310086446
Number of failed RRC connection preparation, Due To Rl setup expiry. Number of failed RRC connection preparation, Due To Codes Number of failed RRC connection preparation, Due To DL POWER Shortage
C310080071 Number of failed RRC connection preparation, Due To RNC Internal Reasons
Counter explanation
C310080068
C310080070
C310080072
Name
Number of failed RRC connection preparation,Due To Rl setup FAIL Rl setup FAIL
Number of failed RRC connection preparation,Due To C310086447 CN
Number of failed RRC connection preparation, Due To UL CE Shortage Number of failed RRC connection preparation, Due To DL CE Shortage / Number of failed RRC connection preparation,Due To Iub RlSetup TbFail Number of failed RRC connection preparation,Due To Iub RlSetup TbCacFail Number of failed RRC connection preparation,Due To Iub UP Fail Number of failed RRC connection preparation, Due To CN Overload
Cause & Solution 1. CE shortage；need CE expansion 2. Check alarm for more information
Due To Rl setup expiry
Transmission problem
CODE Shortage
Code shortage, need traffic balance, add new cell, second carrier
DL POWER Shortage
Power shortage, need traffic balance, add new cell, second carrier
UL Interference
Check the reason for RTWP increase, follow the interference shooting document
UL CE
CE shortage；need CE expansion
DL CE
CE shortage；need CE expansion
RL setup fail, Due to RNC
1. RCB OVERLOAD 2. DSP on RUB not config IP address
Iub Transmission Fail
Transmission problem
Iub Transmission access Fail
Transmission problem
IUB Use Plane Fail
Transmission problem
CN OVERLOAD
CN OVERLOAD
C310080167
Number of failed RRC connection access, due to Radio Interface Synch.
C310080168
Number of failed RRC connection access, due to timeout of Uu interface
C310080169
Number of failed RRC connection access, due to RNC Inner Reasons
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CAUSE: DSP Failed Other hardware problem RRC lodebalance strategy Radio interface failure has Timer for RL restore is to short Have Sent RRC Connection been attributed to some Setup, hardware failures(in sympathy SOLUTION: change hardware But do not received RRC with traffic as what happened Connection Setup Complete or to check if it is the problem at site selbone Park (BPC), Radio Link Restore 1. change the site CMP Nguboyenja (RRU)) 2. change resource shelf priority if it worked, need upgrade or repalce
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Have sent RRC Connection Setup, but do not receiced RRC Connection Setup Complete, but received Radio Link Restore
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Have sent RRC Connection Setup,but do not received RRC N/A Connection Setup Complete, because of RNC
N/A
Meanwhile, UU interface may require some downtilt adjustments and that is what I will be doing for those cells with more than 100 RRC setup blocked due to UU interfac