I understand that, in MU-MIMO, the same PRB on different layers can be shared between different UEs, with enough space between them. However, can the same PRB on different layers be used by a single user, effectively double, triple or even quadruple the throughput?
Of course, upto 8 layers (2 codewords) for single UE in 5G NR. A UE typically supports up to 4 layers in practice.
Thank you for your response. Yes I understand that a UE can have multiple layers. However, my question is that, can a UE use the same PRB on different layers at the same time. From what I read, it seems that it is the case, but I can’t wrap my head around how the beamforming works to support it
Basically, each layer has its own resource grid, so for example, in the case of 4 layers, it means 4 resource grids are transmitted simultaneously. UE can decode based on different DMRS signals on each layer. 5G supports up to 12 orthogonal DMRS ports, which allows a maximum of 12 layers without reusing DMRS ports.
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Thank you so much for the response!