US 12,451,946 B2
Control device that improves communication efficiency in cell-free massive MIMO system composed of many antennas, control method of the same, processing device, processing method of the same, and computer-readable storage medium
Akio Ikami, Fujimino (JP); and Yuu Tsukamoto, Fujimino (JP)
Assigned to KDDI CORPORATION, Tokyo (JP)
Filed by KDDI CORPORATION, Tokyo (JP)
Filed on Mar. 20, 2024, as Appl. No. 18/610,400.
Application 18/610,400 is a continuation of application No. PCT/JP2023/006704, filed on Feb. 24, 2023.
Claims priority of application No. 2022-032779 (JP), filed on Mar. 3, 2022.
Prior Publication US 2024/0235648 A1, Jul. 11, 2024
Int. Cl. H04L 5/12 (2006.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0691 (2013.01) [H04L 5/0048 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A control device that functions as a RAN Intelligent Controller (RIC) in an Open-Radio Access Network (O-RAN), the control device comprising:
one or more processors; and
one or more memories that store a computer-readable instruction for causing, when executed by the one or more processors, the one or more processors to function as:
an identification unit configured to identify, with respect to each of a plurality of terminal devices, a plurality of antennas that are expected to receive, with at least a predetermined power, a signal transmitted from the terminal device, based on locations of the plurality of terminal devices; and
a notification unit configured to notify an O-RAN Distributed Unit (O-DU) that is connected to one or more first antennas included in the plurality of antennas for a first terminal device and executes demodulation and decoding processing for the first terminal device, and is connected to one or more second antennas included in the plurality of antennas for a second terminal device and does not execute demodulation and decoding processing for the second terminal device, of information indicating the one or more first antennas and information indicating a third antenna among the one or more second antennas, the third antenna being a target of transmission path estimation performed based on pilot symbols received from the second terminal device.