Hi,
The ORAN spec that you are referring to likely relates to Massive MIMO beamforming, which uses multiple antennas and baseband processing to simultaneously transmit multiple data streams to different users. The beam weights for a Massive MIMO system are typically calculated using a combination of spatial and temporal signal processing techniques.
In Matlab, the phased.MVDRBeamformer and phased.PhaseShiftBeamformer objects are based on spatial beamforming techniques and calculate weights based solely on the number of antenna elements. These objects do not support the temporal processing needed for Massive MIMO beamforming.
To implement Massive MIMO beamforming in Matlab, you may need to develop your own custom algorithm based on the signal processing techniques described in the ORAN spec. This may involve a combination of techniques such as precoding, spatial multiplexing, and channel estimation.
If you are interested in learning more about Massive MIMO and related signal processing techniques, I would recommend looking into the following Matlab toolboxes:
- Communications Toolbox: This toolbox provides functions and algorithms for implementing digital communications systems, including MIMO techniques such as beamforming, precoding, and spatial multiplexing.
- Phased Array System Toolbox: This toolbox provides functions and algorithms for simulating and analyzing phased array systems, including beamforming and antenna array analysis.
- 5G Toolbox: This toolbox provides functions and algorithms for implementing a complete 5G New Radio (NR) communications system, including Massive MIMO beamforming and channel estimation.
Additionally, here is a link to the official MathWorks documentation on Massive MIMO: https://www.mathworks.com/discovery/massive-mimo.html
