Why UE just used 2 antenna for RSRP/RSSI measurement, but 4 antenna for SINR measurement?

Hi All,
Why UE just used 2 antenna for RSRP/RSSI measurement, but 4 antenna for SINR measurement?

It’s UE internal feature to consider best antenna for measurement as per position hold.

Really? Are you sure?

I came across it in one of discussion.
What’s your UE model?

I don’t know UE model, just checking one log.

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