公开(公告)号：US20180324003A1

公开(公告)日：2018-11-08

申请号：US15778381

申请日：2015-11-26

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Wolfgang Zirwas ,  Berthold Panzner ,  Rakash Sivasiva Ganesan ,  Markus Jaeger ,  Gerhard Kramer

IPC: H04L25/02 ,  H04B7/06 ,  H04B7/26 ,  H04B7/0417 ,  H01Q21/22

CPC classification number: H04L25/0204 ,  H01Q21/22 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/066 ,  H04B7/265 ,  H04L1/0026

Abstract: A method is provided for channel estimation of an antenna array comprising multiple antenna elements. The method comprises obtaining channel state information for antenna elements with a high-end radio frequency chain, wherein the antenna elements with the high-end radio frequency chain are placed in the antenna array intermittently with antenna elements with a low-cost radio frequency chain. Channel state information is estimated for the antenna elements with the low-cost radio frequency chain, by interpolating the channel state information obtained for the antenna elements with the high-end radio frequency chain.