Math behind the pairing UEs in MU-MIMO

[Ahmad_Dawara]

@LordGm

I think what was confusing here and sharetechnote article: gNB actually does not need csi.rs for DL channel estimation and adjust weights, SRS is good at cell center.

You can use either, SRS or CSI-RS from my understanding.

Please check this Samsung Technical White Paper about the topic here now.

@thall

2020 Dec - SAMSUNG - Massive MIMO for New Radio *describe the general principles of transmitting through a large number of antennas in a cellular system. Secondly, we look into massive MIMO radio structures that are fitted to the various deployment environments. Next, we introduce several DL MIMO schemes of 5G system and compare their pros and cons according to channel environment, traffic condition and device capability. Lastly, we present Samsung’s massive MIMO radio hardware and software plans for the best 5G MIMO performance. Samsung provides optimized algorithms for a mixture of various UE capabilities, SRS resource limitation, or enhanced antenna configurations.