- This topic has 11 replies, 1 voice, and was last updated 8 years, 11 months ago by
TAD.
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TD
GuestHi All,
Please help by as how can i Minimize interference by using power control. Place is hilly terrain with low inter site distance. Varies from 300 mts to 700 mts with tight BCCH planning. Window size is 6 with avg period 2(UL/DL).UL/DL level increase 22 and decrease 30.UL/DL Quality increase 2 and decrease 0. Px 3 Nx 4.Please help as I am waiting for your eagar suggestion.
pix
Guesthi TD,
could list all your parameters related to power control, in a neat way ?
please search for other posts related to power control, you’ll find good info.
TD
GuestHi Pix,
Thanks for replying.UL Power control and DL power control is enabled.
POC Sampling,PcUlLevWindow:6,Weight value:2,
PcDlLevWindow:6,Weight value:2,
PcUlQualWindow:6,Weight value:2,
PcDlQualWindow:6,Weight value:2,
Min interval of power control:2,2,2,2POC Table:
Increase/Decrease Step size:0,
MsTxPwrMax:5,MsTxPwrMin:16,BsTxPwrMin:10,Increase uplink level:22,Decrease uplink level:30,Increase uplink quality:2,Decrease uplink quality:1,Increase downlink level:25,Decrease downlink level:35,Increase downlink quality:2,Decrease downlink quality:1,Px:3,Nx:4.TD
GuestHi Pix,
Also Preprocess value is 2. Is that any effect on it…Vendor is ZTE.Thanks.
pix
Guesthi,
i’m not familiar with zte algo, so i’m just gonna comment on the very basic stuff:
POC Table:
Increase/Decrease Step size:0,MsTxPwrMax:5,MsTxPwrMin:16 –> could you translate this in dBm ? 5 –> 33dBm ?? 16 –> ??? there is probably room for improvement here, so it is important we work on those.
BsTxPwrMin:10 –> how much power is it ? 10dB less than the max power ? or Tx power = 10dBm ?
Increase uplink level:22,Decrease uplink level:30 –> there is something to improve here. Try inc level = 25 and dec level = 15
Increase uplink quality:2,Decrease uplink quality:1 — try inc qual = 3, dec qual = 1
Increase downlink level:25, – ok
Decrease downlink level:35, – ok
Increase downlink quality:2, – try 3
Decrease downlink quality:1,
Px:3,Nx:4 – ok (i’m not familiar with those)regards
pixTD
GuestHi Pix,
MsTxPwrMin:16 is 11 dBm.
BsTxPwrMin:10 is 20 dBm.P and N value is 3 highest sample value out of 4 values.
Can You please help me ?
pix
Guesthi,
ok
so the previous recommendations are still valid, and on top of them you can do:
MsTxPwrMin = 5dB or less (choose the minimum value)The step size = 0 is very surprising. It should be 2dB… but this is strongly algo dependent, so maybe 0 is fine. Could you please explain this one for me ?
regards
pixTD
GuestHi Pix,
Thanks for your reply.
Step size 0 means 2 db.Aside to that is there any change i can do with Ho Parameter.
Rxlevmin 15 for all cells.
Uplink receive level 15.
Downlink receive level 15.Please suggest.
pix
GuestTD,
I gave you a list of changes to do… Have you applied them ? what’s the result ?
TD
GuestHi pix,
I Will Make this changes for 5 cells. But Need to Wait for 48 Hrs. Will Join you and share the results.Thanks and will be back soon.mannu
Guestit cause uplink handover also
TAD
GuestHI ALL ,
I AM NOT WELL EQUIPPED IN GSM, PLEASE EXPLAIN THE MEANING OF THE FOLLOWING REPORTS –
AMR Full Rate Speech Algo Fall Back_v1
AMR_Full_Rate_Traffic_Carried
AMR_Full_Rate_Traffic_Ratio
AMR_Half_Rate_Traffic_Carried
AMR_Half_Rate_Traffic_Ratio
AMR_Traffic_Carried
AMR_Traffic_Ratio
EFR_Traffic_Carried
Total Traffic
THANKS IN ADVANCE -
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