公开(公告)号：US20240089874A1

公开(公告)日：2024-03-14

申请号：US18237025

申请日：2023-08-23

Applicant: Nokia Solutions and Networks Oy

Inventor： Hong YANG ,  Carl NUZMAN ,  Paschalis TSIAFLAKIS

IPC: H04W52/42 ,  H04W52/34

CPC classification number: H04W52/42 ,  H04W52/34

Abstract: An apparatus is disclosed, which may include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to perform: receiving downlink channel estimates between a plurality of access point (AP) antennas of one or more APs and a plurality of user equipment (UE) antennas of one or more UEs; iteratively updating a set of power allocation weights for the AP antennas using weights extracted from a precoder; computing the precoder based on the received channel estimates and a previous set of power allocation weights; performing the iterative updates until a stopping criterion is reached; and outputting data representative of a precoder computed from the received channel estimates and the updated set of power allocation weights.