Configuring 30 kHz SCS and 15 kHz SSB SCS: Is it possible?

5G NR
, ,
1

Hello Experts.

Is it possible to configure SCS i.e. 30 kHz and SSB SCS i.e. 15 kHz?

For TDD band.

2

I don’t think so.

No such deployment till now.

3

I have seen in NR in Bullets book.

It’s mentioned and ref table there as well.

4

It depend on bands.

I don’t think for n78 band 15 kHz it is possible.

5

I’m curious. Why would you configure this way?

6

It is not possible to configure different SCS.

7

SCS for cell and SSB SCS I mean, can it be different possible?

Like cell SCS 30 kHz and SSB SCS 15 kHz.

8

subcarrierSpacing kHz30, must be same in all channel…except RACH.

9

Yes, possible.

Like SSB 30 kHz and data 15 kHz.

10

Thanks!

So cell carrier SCS = SSB SCS
RACH can differ only?

11

It is possible and can normally be implemented for DSS to avoid MBSFN subframe.

12

Yes, correct.

13

For FR1, only 15 kHz is supported for FDD bands and only 30 kHz is supported for TDD bands.