Hello Experts,
Are there many UEs capable for DSS in market now?
I know some only like Samsung S20 series & Huawei P40.
Iphone 12 in Q3 2020
But you must check the frequencies of your network. Even the mobile phones support DSS you must check the frequencies combination.
Thank you 
.
For DSS is it enough to check only from rateMatchingLTE-CRS?
Are there any other need to be checked?
Only rateMatchingLTE-CRS supported enough for DSS capbility.
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“frequencyShift7p5khz” is also mandatory for DSS on UL
“additionalDMRS-DL-Alt” is required if additional dmrs is configured