Can DSS be considered as 5G?

Hello dear Experts,

We’re hearing a lot about DSS deployment, several Operators widely activating it.

But can we consider it real “5G”?

DSS is just an early introduction of 5G. More like a Marketing thing.

That’s exactly my thought. Thank you for confirmation. :wink:

Maybe DSS can help you to boost your 3.5 GHz TDD coverage by FDD-TDD NR CA. This is case if you have no space to allocate dedicated spectrum for NR on FDD area like Band 1 or Band 3.
NR PUCCH on 3.5 GHz TDD could suffer weaker…

Is there any real time use case of DSS for the operators?
I.e. From a planning engineering point of view, if I want to show this feature in any RF planning tool than what could be the use case which I show to any operator?

In DSS implementation will there be any identifier in drive logs to identify DSS is used or not.
Or will it be not identiable in Air interface?

Use case would be if operator does not have allocated 3.5Ghz or have no equpment, just to make fast 5G launch.
As collegues said this use case has just marketing purpose.
From capacity perspective probably will be worse.
You can maybe ask for 4x4 MIMO for NR FDD to boost NR thpts that are affected by LTE control symbols.
From RF planning point there is no anything specific in there.

Hi @Bega82,
With which UE did you test it?
If it was Qualcomm, were you able to see RE level logs to check which RE are actually being punctured in a 5G slot to compensate for the LTE CRS?

In case of DSS center frequency remains common for both LTE and NR so from ARFCN of NR and LTE you can check whether DSS is activated or not.