Not related to other search space or coresets*.
So 1 coreset can be related to multiple search spaces. But not the other way around.
The good flexibility is numerology.
Lets assume we have 50 RB with three BWP.
Can we assign one for common and two for UE coreset?
As common coreset carriers SIB RAR and paging info.
So that can be a seperate entire coresetā¦
Yes, we can!
I understand.
Now assume I have searchspace id 1, two different coresets: one with id 3 and other coreset id 4 within active BWP.
So coreset id 3 and coreset id 4 can use the same searchspace id 1?
No, it canāt!
Okay I understand, much thanks much! 
Thanks! 
How many frequency division possible in one coreset?
Does it has limitations?
Or can go like nrb coreset till 50?
If i have 273 rb as example.
Nsymbol coreset can be 3 max if DL DMRS type a pos is 3?
Per my understanding there is no limitations but it must be group of multiple 6 REGs.
One last question: per searchspace I can have multiple aggregation level within it or each searchspace has one type of aggregation level?
How many coreset possible in active bwp?
Is it 3 or 4 per subframe?
You can have multiple aggregation lvl within a search space.
How many coreset can he having per active bwp per slot?
As max num of coreset in serving cell can be 12.
I guess 3 per bwp and total 4 bwp in a cell so 4x3.
Per slot, do you know how much in 30 kHz spacing?
So they overlap? Mean aggregation level 1 and aggregation level 2 their places (locations of rbs) overlap?
Yes with and w/o overlap both are possible.
We have 10 search spaces per BWP is 10 so a coreset has multiple search space with diff aggregation level.
max 10 search space.
So one search space has agg1, another agg4 or how?
Have 3 coreset per BWP so in freq one coreset can have how many RB.
Is it max 6 or more?
It is more.
How much max like 24 or more than that possible?
If i have 273 rb entire band.
24 each like example to make 72 in that bwp, and another 50 and so onā¦
Control set id is 11.
So can I make nrb per coreset as per required?
Maximum 3 CORESET is allowed for an active DL BWP.
Yes, I was confused. Thanks!
So assume 30 kHz is there another slot will too have coreset.
As we have 14+14 ofdm symbols.