Title:
TRANSMISSION DEVICE AND TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/084635
Kind Code:
A1
Abstract:
This transmission device is provided with a first communication unit, a second communication unit, a detection unit, a control unit, and a selection unit. The first communication unit, when power is applied thereto, performs communication using a first path. The second communication unit, when power is applied thereto, performs communication using a second path. The detection unit detects a prognosis of failure. In the case where the detection unit has not yet detected a failure prognosis, the control unit refrains from applying power to the second communication unit. In the case where the detection unit has detected a failure prognosis, the control unit initiates supplying power to the second communication unit and also checks upon the normality of the second path prior to switching from the first path to the second path. In the case when the first communication unit and the second communication unit both have received signals, the selection unit makes a choice between the signal received by the first communication unit and the signal received by the second communication unit, and outputs the chosen signal.
Inventors:
KITAMURA KEI (JP)
INUZUKA FUMIKAZU (JP)
SHINTAKU KENGO (JP)
TANAKA TAKAFUMI (JP)
ODA TAKUYA (JP)
INUZUKA FUMIKAZU (JP)
SHINTAKU KENGO (JP)
TANAKA TAKAFUMI (JP)
ODA TAKUYA (JP)
Application Number:
PCT/JP2019/042486
Publication Date:
May 06, 2021
Filing Date:
October 30, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04L69/40
Domestic Patent References:
| WO2014050022A1 | 2014-04-03 | |||
| WO2017170006A1 | 2017-10-05 |
Foreign References:
| JPH0795132A | 1995-04-07 | |||
| JP2009100442A | 2009-05-07 | |||
| JP2013243559A | 2013-12-05 | |||
| JP2013005210A | 2013-01-07 |
Other References:
METAARC: "FUJITSU Network Virtuora/FUJITSU Network INFINITY Thinking network that supports MetaArc to lead digital innovation in business", FUJITSU FORUM, May 2017 (2017-05-01)
KITAMURA, KEI ET AL.: "Large capacity ODU path protection without bit disruption for low latency core/metro network", IEICE TECHNICAL REPORT, vol. 118, no. 505, 15 March 2019 (2019-03-15), pages 73 - 76
KITAMURA, KEI ET AL.: "Large capacity ODU path protection without bit disruption for low latency core/metro network", IEICE TECHNICAL REPORT, vol. 118, no. 505, 15 March 2019 (2019-03-15), pages 73 - 76
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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