How to compute pzeronominalpucch?

Hi Experts.

Anyone could share how to compute pzeronominalpucch?

Why don’t you use vendor default value?
Sometimes I see values of -70 dBm, sometime -90 dBm sometime -98 dBm.
Better check with vendor.

Yes, it’s better to check the planning value because it will depend on a set of parameters related to OLPC configuration.

Ericsson vendor default is -117 :slight_smile: .
I am also interested in knowing, till what value it is safe to increase.
And what can be the potential draw backs in a highly loaded network.

A high value will shrink the cell coverage in Uplink.
But it will guarantee there is communication between UE and eNodeB.

It shouldn’t be other way round?
We are making UL robust and Increased chances of communication fir UE with eNodeB means improved UL Coverage.

I mean if you set a pzeronominalpucch = - 70 dBm do you expect all users from cell to be able to accomplish it?
The ones from cell edge will not have enough TX power to transmit so high.
There has to be a trade-off between robust communication and cell distance/range/radius.

In cities there is no problem, there’s a site every 500m but in residential it could be a problem to set -70 dBm.

Imagine that coverage and interference are very well regulated in DL due to specific antenna patern in DL.
But in uplink there is interference everywhere all UEs radiate omni.
It is a mess in Uplink.
Uplink Power control is the only thing that makes things to be acceptable.
Yet all UEs radiate omni in Uplink.

It also will differ from Fractional UL Power Control and Open Loop Power Control.

Take a look on this information:

Definitely Cell edge users are already transmitting at a higher pewer.
Increasing to some extent works but after that it becomes counter productive I believe.

As you said, it will create increased UL Noise.

Fractional PL PC is based on PUSCH. PUCCH Power Control is separate.

It’s a parameter… normally set to a certain value and not calculated…

Yes -117 and -96 or -93.

-103 for PUSCH.