公开(公告)号：US20230081201A1

公开(公告)日：2023-03-16

申请号：US17797505

申请日：2020-02-10

Applicant: Nokia Solutions and Networks Oy

Inventor： Marko Fleischer ,  Jan HELLMANN ,  Rene ROSCHKE ,  Helmut HEINZ

IPC: H04B7/06

Abstract: The present subject matter relates to an apparatus for a communication system. The apparatus is configured for: for each beam direction of a set of beam directions of an antenna array of the communication system, determining a level of a passive intermodulation, PIM, signal at a receiver of the communication system, the PIM signal being caused by a set of signals transmitted by the antenna array in the beam direction, identifying beam directions of the set of beam directions whose PIM level is higher than a predefined threshold, adapting a beamforming of signals in at least part of the identified beam directions to mitigate the PIM level at the receiver.