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In my network drop due quality uplink is high which contributing around 45% of the network call drop. can anybody tell how to improve the network and what are methods to check
Details of my netwok
GSM 900/ 1800 Band – Ericsson network- 6,6,6 TRx configaration with 31 ARFCN in GSM 900 & 12 ARFCN in GSM 1800
did you activate the UL power control and the DTX uplink ?
if no : activate them
if yes : check your UL power control thresholds (upper and lower), decrease those values by few dB in order to reduce the overall uplink noise in your network.
HI PIX THANKS FOR UR INFO
WE AHVE ALREADY ACTIVATED UL PWR CONTROL AND DTX ULWE HAVE UL PWR CNTRL AS
SCTYPE SSDESUL SSLENUL LCOMPUL
ALL 92 3 10
QDESUL QLENUL QCOMPUL
40 3 50
REGINTUL DTXFUL
1 5
are these parameters as correctHi Pix
I Have same problem in my site high TDROP bad quality uplink.
Network GSM900 Band – Ericsson Metwork 2,2,2 TRX Configuration
Thanks,
I have drops by LOWSS
all BSC’s in my GSM 900 network are suffering from an increasing on TCH drop rate with bad quality up link and sudden reasons.
TCH drop rate 0.87% to 1.6%.
what do you think I have to do to improve it? by the way all power control parameters set correctly.That is a huge increase. Are you absolutely sure no parameter has been changed (eg, BADQUL on the BSC)?
Let your BSS/Core network guys perform a synchronization audit.
If you’ve not already done so, please activate Interference Rejection Combining (IRC). It will definitely help with the uplink quality drops.
Regards
Hi,
I have same problem with drop due to Bad Quality Uplink on GSM network and I try to swab layer between GSM and DCS and it work.
Hi,
Please check if ICM is active (Idle Channel Measurements)
ICM bands are used for prioritizing good quality channels for allocation first and keeping the bad ones as a last resort.
Good Luck
Dear all
You should check the TA of drop calls. If your drop calls are at far places down tilt your antennas or if you dont want to loose coverage install TMA. TMAs will improve your UL strength.How to improve the poor uplink in GSM network
ya i have got the result by power control
but some of cell having high ho failure
I have the same problem on just one cell. Can someone help us?
