I have a few questions in 5G NR, please clarify them.

- If 15 kHz subcarrier = slot per subframe is 1 slot = 1 ms = 14 OFDM symbol, then 30 kHz subcarrier = slot per subframe is 2 slots = 1 ms = 28 OFDM symbol, and for 60 kHz subcarrier = slot per subframe, it is 4 slots = 1 ms = 56 OFDM symbol.

Now, my question is this:

A . What is the size of 1 slot, which means each slot’s bandwidth size, for 15 kHz, 30 kHz, and 60 kHz?

B. How much bandwidth contains 1 OFDM symbol?

- Resource element (RE) consists 1 OFMD symbol in time domain and 1 subcarrier in frequency domain.1 slot =14 OFDM, where slot duration depends on subcarrier spacing.

Now, my question is this:

A. Is there any relation between slot and RE?

B. 1RE = 1 OFDM symbol (also 1 subcarrier), and 1 slot = 14 OFDM symbols. so can I say , in 1 slot contain 14 RE or 14 subcarrier.