LTE RACH SR formula

Then downtilt or power decrease can be the solution to control.
Or make emergency mode in qrxlevminšŸ˜­

And they claimed that they donā€™t want Traffic from more than 2 km away :slight_smile:
Like you can stop the traffic wherever you want.

Give emergency calls to that location.

All users from more than 2 km donā€™t have access to network at all.
Huge customer complaints.

Which is not for user point anyway.

With no neighbor sites to cover?

Huge interference everywhere, and overlapping due to max tilt 2 degrees only instead of 6-8-10 in the cities.

There are neighbor cells, but you have overshooting at 8-10 km distance, where is best server/dominant?
Nothing you can do without tilt.

Without tilt itā€™s tough.

Honestly, I didnā€™t get the downside here.
If the sites are properly planned, wouldnā€™t cell reduction be a good way of controlling overshooting?

You have to control planned by properly tilt. If a cell is dominant at 8 km away and cellradius is just 2000 m means no user at that location at 8 km, cannot access cell at all.
And this is a issue.

If you reduce the coverage and if in that point you have weak coverage, then you will have access issue and so on.
But if overlaps have that level then itā€™s a gain to improve your SINR.
So itā€™s RSRP is good of overlap then good or esle not.

I see some operator want tilt small (2 or 3) because they want large coverge to have more Traffic.

In better, if you want to analyse make a thumb rule that your site should be 20 percent of neighbor.
If very less undershooter; if more, overshooter.

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Hmm, I see. But how about cases like one of the folks here mentioned that the ISD is about 80m.
In this case I cannot imagine how overlapping would be controlled with tilt/power.
What are your thoughts on this?

(the mentioned scenario in India btw)

80 m is tough to control anyways give how much tilt you want.
But will improve interference.
If downtilt of serving and neighbor is proper.

As in your RACH failure is rsi conflict, so you need to check that.

There is no problem. Make cellradius enough and there will be no problem.
Just sinr degraded evrywhere due to too much overlapping.
For intersite distance of 80 meters is important where you place the antenna.
If you place it on top of the building you will have problems.
But if you place it on side walls of buildings there will be no issue.
So site survey is very important.
And same is candidate selection.

Is site relocation a common practice anywhere in the World?

No, it is not.
But sometime it is due to high rent.
I have seen sites with 5000 usd/month for10m x 10m area.
Now not anymore.
But back into 2000 year, it was like this.

Or for a new blockage.

Very expensive.