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. 19, 2017
Filed:
Nov. 12, 2014
Thomas Marzetta, Summit, NJ (US);
Oliver Blume, Stuttgart, DE;
Pawel Rulikowski, Dublin, IE;
Simone Maier, Stuttgart, DE;
Andreas Pascht, Rudersberg, DE;
Thierry Klein, Fanwood, NJ (US);
Thomas Marzetta, Summit, NJ (US);
Oliver Blume, Stuttgart, DE;
Pawel Rulikowski, Dublin, IE;
Simone Maier, Stuttgart, DE;
Andreas Pascht, Rudersberg, DE;
Thierry Klein, Fanwood, NJ (US);
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
In a method for transmitting data through a Massive MIMO backhaul system, a central node of the MIMO backhaul system transmits, to a small cell repeater terminal on the downlink, a downlink pilot signal carrying a set of pilot sequences that are mutually orthogonal in the frequency domain. Each pilot sequence in the set of pilot sequences corresponds to an antenna of an antenna array at the central node. The central node receives an uplink pilot signal carrying the set of pilot sequences transmitted by the small cell repeater terminal on the uplink, where the received uplink pilot signal is a frequency converted retransmission of the downlink pilot signal. The central node estimates at least one of an uplink channel and a downlink channel between the central node and the small cell repeater terminal based on the set of pilot sequences and the received uplink pilot signal.