The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2016
Filed:
Feb. 07, 2014
Alcatel Lucent, Boulogne-Billancourt, FR;
Alexei Ashikhmin, Morristown, NJ (US);
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
Directed inter-cell interference experienced by the downlink of a massive MIMO wireless communication network base station due to pilot contamination that occurs as a result of pilot signal reuse is significantly reduced by encoding signals to be transmitted over the downlink into robust signals. The robust signals along with corresponding beamforming vectors are transmitted over the downlink where the beamforming vectors are estimated by the base station using received fast fading pilot sequences. The encoding is performed by an interference cancellation algorithm whose use is proper when the communication network can be characterized as having one transmitter at each of its nodes (i.e., the base stations) and all the channel coefficients of the network are known by every node.