When is an Antenna considered Massive MIMO Antenna?

Equipment Antennas
1

Dear Experts.

Considering mmWave AAU 2T & 4T only with up to 1024 antenna elements.

Is it called massive MIMO?

2

For massive mimo simply AE > 8.

Also worth to read this: What is the difference between MIMO, Massive MIMO, and Cell free Massive MIMO?

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3

AE > 8 or TRX > 8?

4

For massive MIMO AE >> csi-rs ports.

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