Title:
BASE STATION APPARATUS AND ALLOCATION METHOD
Document Type and Number:
Japanese Patent JP2019125831
Kind Code:
A
Abstract:
To provide a base station apparatus and the like for improving the demodulation performance of a data signal by assigning an optimum reference signal to each terminal device.SOLUTION: A base station includes a transmission unit, a calculation unit, and an allocation unit. The transmission unit forms a plurality of beams by using antenna elements, and spatially multiplexes a data signal and a reference signal used when the data signal is demodulated, and transmits the data signal to each terminal device. The calculation unit calculates an index value related to the correlation between the terminal devices on the basis of propagation path information between the terminal devices to be spatially multiplexed. The allocation unit allocates the reference signal to each of the terminal devices to be spatially multiplexed according to the index value between the terminal devices.SELECTED DRAWING: Figure 3
Inventors:
KUMAGAI SHINYA
Application Number:
JP2018002968A
Publication Date:
July 25, 2019
Filing Date:
January 11, 2018
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
H04L27/26; H04B7/0413; H04B7/0452; H04B7/06; H04J13/16; H04J99/00; H04W16/28; H04W72/04
Domestic Patent References:
| JP4776685B2 | 2011-09-21 | |||
| JP2013179407A | 2013-09-09 |
Attorney, Agent or Firm:
Sakai International Patent Office