Full rate Half rate calculation

[electron]

Hi All,


How to calculate Half/Full rate parameters for each cell ?

I want to calculate globally for all of cells of a BSC.

(E******* 2G vendor)


Thanks

[s52d]

Hi!


My policy: assign HR to a call in last free TS.
This makes decent balance between HR/FR ratio on one side, and TCH congestion on another side.

As E/// needs to specify "number of free TS" in %, you ned different settings for each
cell, based on number of TRXes.
Bonus fun: when number of TRXes is changed, you have to change this parameters.


On top of it, you decide if TS used by GPRS/EDGE are considered free or busy for
this calculation. (do you want more FR or more EDGE?

Also, you might use different quality target for HR-AMR/HR, based on better robustness of AMR.

This one I do not bielive: works fine in gaussian noise, when random bits are wrongly
detected, but does not work if whole burst is lost. Observe FER and SQI stats.

BR
s52d

[leteo]

Hi All,


How to calculate Half/Full rate parameters for each cell ?

I want to calculate globally for all of cells of a BSC.

(E******* 2G vendor)


Thanks

Hi guy,

In my opinion, u should calculate HR/FR as following :
1, Based on TU (Traffic Utilization)
TU = Traffic Peak Hour / Traffic Offer
where : Traffic Peak Hour is traffic of one cell at peak hour, U can extract it from OSS (counter). And Traffic Offer is calculated as guideline of Aircom, I think you know "GSM Applied Cell Planning" of Aircom, right ? .
2, You should maintain 85% < TU(with HR) < 95% and TU( without HR) < 120%.
3, If 80% < TU (with HR) <85% (in 4 days of 7 days), you should decrease %HR.
If 95% < TU (with HR) < 120% (in 4 days of 7 days), you should increase %HR.
If TU(with HR) < 80% (in 4 days of 7 days), you delete HR.
If TU(with HR) > 120% (in 4 days of 7 days), you should add more radio resource (TRx, new cell, new site....)

Rgds,

[avatar]

Hello,
attached macro for HR tuning, hopefully it will be useful for you

[electron]

THANKS ,


ANY OTHER PRACTICAL ADVAISE...

[visible]

Hello,
attached macro for HR tuning, hopefully it will be useful for you

Hi Could you please put it on 4shared since we dont have enough credits to download it?Thanks

[joechaoul]

hi does anyone have a HR Tuning Guideline?

Thks in advance

[joechaoul]

Can anyone explain this file

[spindary]

please upload this file to a link because i don't have credit for downloading with password.

thanks

[radio_network]

General conditions of HR
According to your requirements.

1. DIrect allaoction of HR to a cell .... Not required as it is unnecessary
2. HR should be riggered only when the cell reaches certain % congestion /loading Keep according to your requirement observe the changes then change
3. HR triggering is also based on level. Check the C/I , Qualityand channel type using drive test.
4. And Codec threshold for AMR HR C/I value may be changed according to your requirement based on drive and statistics (codec mode penetration)
5. If u are employing concentric cells, better to avoid HR in innerband.
HR can be implied upto a certain percenatge of congestion. Better u can try directed retry and other options also.

ANy comments welcome.