Title:
BASE STATION DEVICE, TERMINAL DEVICE, AND COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP2019118036
Kind Code:
A
Abstract:
To provide efficient beam forming keeping when a base station device or a terminal device performs transmission by beam forming and performs carrier aggregation.SOLUTION: A base station device or a terminal device performs transmission by beam forming, and when carrier aggregation is further performed, sets QCL (Quasi-colocation) between component carriers. QCL which was set at the time of CSI (Channel State Information) calculation is used. CSI of a component carrier is further calculated on the basis of setting of QCL between the component carrier and an antenna port. CSI of the component carrier is further calculated on the basis of the number of antenna ports to be used.SELECTED DRAWING: Figure 6
Inventors:
NANBA HIDEO
YAMADA RYOTA
TOMEBA HIROMICHI
SHIRAKAWA ATSUSHI
YAMADA RYOTA
TOMEBA HIROMICHI
SHIRAKAWA ATSUSHI
Application Number:
JP2017251431A
Publication Date:
July 18, 2019
Filing Date:
December 27, 2017
Export Citation:
Assignee:
SHARP KK
International Classes:
H04B7/0413; H04B7/024; H04B17/24; H04B17/309; H04J1/00; H04L27/26; H04W16/28; H04W72/04
Attorney, Agent or Firm:
Hiroyuki Katata