Title:
MULTIPLEX TRANSMISSION SYSTEM AND MULTIPLEX TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/209095
Kind Code:
A1
Abstract:
In the present invention, an uplink transmission band and a downlink transmission band to be allocated to users are determined on the basis of allocation information indicating the allocation of a usable frequency bandwidth to each user, and are output respectively as uplink transmission band allocation information and downlink transmission band allocation information. The following are multiplexed: downlink signals for the users output towards a plurality of wireless devices by a plurality of wireless control devices on the basis of the downlink transmission band allocation information; and the uplink transmission band allocation information. The downlink signals for the users and the uplink transmission allocation information are separated from the multiplexed signal. The uplink transmission bands allocated to the users are changed on the basis of the separated uplink transmission band allocation information. Uplink signals for the users output towards the plurality of wireless control devices by the plurality of wireless devices in accordance with the changed uplink transmission bands are multiplexed. The multiplexed signal is separated into uplink signals for the users.
Inventors:
SHIBATA NAOTAKA (JP)
TAKAHASHI KEITA (JP)
FUKUI TATSUYA (JP)
KIMURA HIDEAKI (JP)
YAMAMOTO HIROFUMI (JP)
OTA NORIYUKI (JP)
TERADA JUN (JP)
TAKAHASHI KEITA (JP)
FUKUI TATSUYA (JP)
KIMURA HIDEAKI (JP)
YAMAMOTO HIROFUMI (JP)
OTA NORIYUKI (JP)
TERADA JUN (JP)
Application Number:
PCT/JP2020/013842
Publication Date:
October 15, 2020
Filing Date:
March 26, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04W92/12; H04B10/272; H04J1/00; H04J14/02; H04W28/20
Domestic Patent References:
| WO2018113797A1 | 2018-06-28 | |||
| WO2020075318A1 | 2020-04-16 |
Foreign References:
| JP2018532296A | 2018-11-01 | |||
| JP2017212707A | 2017-11-30 |
Other References:
NAKAO, AKIHIRO ET AL.: "Virtualization technology to improve spectrum efficiency in 5G/IoT access networks", LECTURE PROCEEDINGS OF THE 2018 GENERAL CONFERENCE OF IEICE: COMMUNICATION 2 B-8-50, 6 March 2018 (2018-03-06), pages 191
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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