EP 3251227 A1 20171206 - PRECODER DESIGN AND USE FOR MASSIVE MIMO
Title (en)
PRECODER DESIGN AND USE FOR MASSIVE MIMO
Title (de)
VORCODIERERENTWURF UND VERWENDUNG FÜR MASSIVE MIMO
Title (fr)
CONCEPTION ET UTILISATION D'UN PRÉCODEUR POUR MIMO MASSIF
Publication
Application
Priority
- US 201562109496 P 20150129
- EP 2016051909 W 20160129
Abstract (en)
[origin: WO2016120443A1] A precoder is determined (e.g., at a base station) for a given layer and for a UE. The precoder includes a three-part product codebook structure. The determining uses CSI from the UE for the three-part product codebook structure, and the CSI corresponds to multiple antenna elements in at least a 2D array of cross-polarized antenna elements. The determined precoder is applied to information for the layer to be transmitted to the UE, and the precoded information for the layer is transmitted to the UE using the antenna elements in the at least 2D array of cross-polarized antenna elements. The UE can determine, using reference signal information transmitted using the antenna elements, the CSI corresponding to each part of a three-part product codebook structure for the layer, and report the determined CSI to the base station. Methods, apparatus, computer program products, and systems are disclosed.
IPC 8 full level
CPC (source: EP)
H04B 7/0452 (2013.01); H04B 7/0456 (2013.01); H04B 7/0469 (2013.01); H04B 7/0478 (2013.01); H04B 7/0486 (2013.01); H04B 7/0626 (2013.01); H04B 7/0632 (2013.01); H04B 7/0634 (2013.01); H04B 7/0639 (2013.01); H04B 7/0697 (2013.01)
Citation (search report)
See references of WO 2016120443A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2016051909 W 20160129; EP 16701956 A 20160129