View Full Version : Original Abnormal drop with good level and quality
raid75
2011-02-14, 04:10 AM
recently we are getting a lot of 2G call drops with description below:
Abnormal drop with good level and quality
since the vendor is e******* as BSS and Huwai as MSC
please be advised.
D33T0X
2011-02-14, 06:49 AM
Normally these are software bugs... seen lots of these
most probably inter-vendor equipment configuration/settings incompatibilities...
need to revisit hardware versions/firmware/software installed; as different vendors have different HW/SW features and capabilities; when there is an upgrade in a vendor's equipment, the other vendor's equipment need a similar upgrade as well addressing the other vendor's upgrades/updates - a disadvantage of a network with equipment/s supplied by different vendors.
mobilek530
2011-02-14, 03:36 PM
Please upload drive test log file to check root cause or at which layer its occuring
srilasitha
2011-02-15, 02:18 AM
Version upgrades or system parameter changes may affect in inter vendor networks
mobilek530
2011-02-15, 02:37 AM
Hi
Sometimes billing system also cause problems
please add repu
poncho
2011-02-15, 03:30 AM
Hi Raid75,
Is it on some specific cells, or it is across a whole BSC. There was release of E******* DRUs of the 2116 RBS type that had manufacturing defects that were detected only after reaching operators. The drop reasons were primarily due to low signal strength (because the DRUs were not transmitting correctly) and the HO performance also degraded at the same time.
I hope this helps
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