公开(公告)号：US20180145739A1

公开(公告)日：2018-05-24

申请号：US15355421

申请日：2016-11-18

Applicant: Nokia Solutions and Networks Oy

Inventor： Rakash Sivasivaganesan ,  Wolfgang Zirwas ,  Berthold Panzner ,  Markus Staudacher

IPC: H04B7/06 ,  H04B7/02

CPC classification number: H04B7/0634 ,  H04B7/022 ,  H04B7/024 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0691 ,  H04W88/08

Abstract: A method includes mapping a signal desired by at least one receiver to a projection area based at least on a functionality corresponding to one or more first radio frequency chains coupled to a plurality of first antennas; selecting precoding coefficients for at least one of one or more second radio frequency chains coupled to a plurality of second antennas to generate a signal point within the projection area; and compensating for a difference between the generated signal point and the signal desired by the at least one receiver using at least one of the first radio frequency chains, wherein the second radio frequency chains have a reduced functionality relative to the functionality of the first radio frequency chains, and wherein the first and second set of antennas are different.