Title:
CONTROL DEVICE, CONTROL METHOD, AND PROGRAM SELECTIVELY USING PLURALITY OF ANTENNAS
Document Type and Number:
WIPO Patent Application WO/2021/095322
Kind Code:
A1
Abstract:
This control device is connected with a plurality of antennas and communicates user data with a terminal device by using at least any one among the plurality of antennas, the control device controlling to: specify a reception state of a random access preamble, which has been transmitted from the terminal device in order to establish a connection with the control device, in each of the plurality of antennas; select an antenna to be used when communicating the user data with the terminal device from among the plurality of antennas on the basis of the reception state in each of the plurality of antennas; and communicate the user data with the terminal device by using the selected antenna.
Inventors:
OHSEKI TAKEO (JP)
ITO MASAAKI (JP)
KANNO ISSEI (JP)
YAMAZAKI KOSUKE (JP)
ITO MASAAKI (JP)
KANNO ISSEI (JP)
YAMAZAKI KOSUKE (JP)
Application Number:
PCT/JP2020/031974
Publication Date:
May 20, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
KDDI CORP (JP)
International Classes:
H04W16/28; H04B7/024; H04B7/06; H04W72/08; H04W74/08; H04W88/08
Foreign References:
| JP2005151369A | 2005-06-09 | |||
| JP2008048086A | 2008-02-28 | |||
| JP2019204826A | 2019-11-28 |
Other References:
ERICSSON, SONY: "Verification of beam correspondence during initital access", 3GPP TSG RAN WG4 #92 R4-1908719, 30 August 2019 (2019-08-30), XP051771666
M. KARLSSON: "Techniques for System Information Broadcast in Cell-Free Massive MIMO", IEEE TRANSACTION ON COMMUNICATION, January 2019 (2019-01-01)
See also references of EP 4061044A4
M. KARLSSON: "Techniques for System Information Broadcast in Cell-Free Massive MIMO", IEEE TRANSACTION ON COMMUNICATION, January 2019 (2019-01-01)
See also references of EP 4061044A4
Attorney, Agent or Firm:
OHTSUKA, Yasunori et al. (JP)
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