Vertical beamwidth adjustment to increase MU-MIMO pairing efficiency
Systems and methods are provided for dynamically modifying beamforming weights based on MU-MIMO user device pairings. A quantity of MU-MIMO user device pairings served by a node is determined. Based on a maximum quantity of potential MU-MIMO user device pairings for the node, it is determined that a quantity of the MU-MIMO user device pairings for the node is below a threshold. Because the quantity of the MU-MIMO user device pairings is below the threshold, beamforming weights are modified to widen a vertical main lobe to increase the quantity of MU-MIMO user device pairings.
1. A system for dynamically modifying beamforming weights based on MU-MIMO user device pairings, the system comprising:
a processor; and
one or more computer storage hardware devices storing computer-usable instructions that, when used by the processor, cause the processor to:
determine a quantity of MU-MIMO user device pairings served by a node;
based on a maximum quantity of potential MU-MIMO user device pairings for the node, determine that a quantity of the MU-MIMO user device pairings for the node is below a threshold; and
based on the quantity of the MU-MIMO user device pairings being below the threshold, modify one or more beamforming weights to widen a vertical main lobe.
2. The system of claim 1 , wherein the processor is further caused to request the quantity of MU-MIMO user device pairings served by the node from a gNodeB associated with the node.
3. The system of claim 1 , wherein the beamforming weights correspond to at least a phase and an amplitude of a beam.
4. The system of claim 1 , wherein the processor is further caused to compute a pairing efficiency based on the quantity of MU-MIMO user device pairings served by a node.
5. The system of claim 1 , wherein the vertical main lobe is formed using MU-MIMO.
6. The system of claim 1 , wherein the processor is further caused to, subsequent to the one or more beamforming weights being modified to widen the vertical main lobe, determine that the quantity of the MU-MIMO user device pairings for the node is above the threshold.
7. The system of claim 6 , wherein the processor is further caused to modify the one or more beamforming weights to narrow the vertical main lobe.
8. A method for dynamically modifying beamforming weights based on MU-MIMO user device pairings, the method comprising:
determining a quantity of MU-MIMO user device pairings served by a node;
based on a maximum quantity of potential MU-MIMO user device pairings at the node, determining a threshold for MU-MIMO user device pairings for the node;
determining that the quantity of MU-MIMO user device pairings at the node is below the threshold; and
modifying one or more beamforming weights to widen a vertical main lobe.
9. The method of claim 8 , wherein the vertical main lobe is formed using MU-MIMO.
10. The method of claim 8 , further comprising subsequent to modifying the one or more beamforming weights to widen the vertical main lobe, determining that the quantity of the MU-MIMO user device pairings for the node is above the threshold.
11. The method of claim 10 , further comprising modifying the one or more beamforming weights to narrow the vertical main lobe.
12. A method for dynamically modifying beamforming weights based on MU-MIMO user device pairings, the method comprising:
computing a MU-MIMO pairing efficiency for a node;
determining that the MU-MIMO pairing efficiency is below a threshold; and
based on the MU-MIMO pairing efficiency being below the threshold, modifying one or more beamforming weights to widen a vertical main lobe formed from MU-MIMO at the node.
13. The method of claim 12 , wherein computing the MU-MIMO pairing efficiency comprises:
determining a quantity of MU-MIMO user device pairings at the node; and
based on a maximum quantity of potential MU-MIMO user device pairings at the node and the quantity of MU-MIMO user device pairings at the node, determining the MU-MIMO pairing efficiency.
14. The method of claim 12 , wherein the MU-MIMO pairing efficiency is based on a quantity of MU-MIMO user device pairings at the node and a maximum quantity of potential MU-MIMO user device pairings at the node.
15. The method of claim 12 , wherein the one or more beamforming weights correspond to at least a phase and an amplitude of the vertical main lobe.
16. The method of claim 12 , further comprising subsequent to modifying the one or more beamforming weights to widen the vertical main lobe, determining that the MU-MIMO pairing efficiency is above the threshold.
17. The method of claim 16 , further comprising modifying the one or more beamforming weights to narrow the vertical main lobe.