Patent ID: 11877311
Assignee: VIREWIRX, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method of clustering user equipments and computing precoding coefficients, the method comprising:
selecting first user equipments and associated first ranks for a first cluster that includes the first user equipments and first network nodes, wherein the selecting the first user equipments comprises:
estimating a Sounding Reference Signal channel estimate between an antenna of a user equipment of the first user equipments and an antenna of a network node of the first network nodes; and
computing an average of squared channel estimates of all antennas of the first network nodes and the antenna of the user equipment of the first user equipments, wherein the selecting the first user equipment is based on the average of squared channel estimates;

selecting second user equipments and associated second ranks for a second cluster that includes the second user equipments and second network nodes:
determining one or more user equipments of the second user equipments to protect;
computing precoding coefficients for the first cluster with nulling based on the one or more user equipments of the second user equipments to protect; and
causing wireless transmission from the first network nodes to the first user equipments using the precoding coefficients.