LTE: Why is SU-MIMO needed (an eNodeB needs to communicate with hundreds or more UE, not a single UE)?

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posted Feb 13 by anonymous

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2 Answers

Using multi layer beamforming SU-MIMO can have multiple layers using same time-freq resources...it is equivalent to nxn spatial multiplexing MIMO but technically it is different. It is supported by beamforming in TM8 and TM9.

answer Feb 13 by Faisal Adeem Siddiqui

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Hi,
SU-MIMO is used to support peak data rate for individual users and MU-MIMO is to increase cell capacity so that all user will get fairness. It is depends on the operator based on the subscription and ENB type (small cell,macro cell etc) he can decide SU-MIMO or MU-MIMO.