Title:
STATION-SIDE DEVICE AND OPTICAL TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/143692
Kind Code:
A1
Abstract:
A selection/distribution circuit (13) is provided between N optical transceivers (11) and one passive optical network (PON) control circuit (12). The selection/distribution circuit (13) selects one of the optical transceivers (11) corresponding to an uplink frame which arrives in time division, thereby transferring the uplink frame that has been opto-electrically converted by said transceiver (11) to the PON control circuit (12), and distributes downlink frames from the PON control circuit (12) to the optical transceivers (11). A power supply control circuit (23) suspends the supply of power to any of the optical transceivers (11) that are not being used to transfer the frame, and/or any circuits in the selection/distribution circuit (13) that are not being used to transfer the frame. By this means, the system cost per optical network unit (ONU) in an optical transmission system can be reduced.
Inventors:
OHTERU SHOKO (JP)
IKEDA NAMIKO (JP)
HATTA SAKI (JP)
SHIGEMATSU SATOSHI (JP)
TANAKA NOBUYUKI (JP)
KAWAI KENJI (JP)
KATO JUNICHI (JP)
KAWAMURA TOMOAKI (JP)
UZAWA HIROYUKI (JP)
ARIKAWA YUKI (JP)
MIURA NAOKI (JP)
IKEDA NAMIKO (JP)
HATTA SAKI (JP)
SHIGEMATSU SATOSHI (JP)
TANAKA NOBUYUKI (JP)
KAWAI KENJI (JP)
KATO JUNICHI (JP)
KAWAMURA TOMOAKI (JP)
UZAWA HIROYUKI (JP)
ARIKAWA YUKI (JP)
MIURA NAOKI (JP)
Application Number:
PCT/JP2016/056776
Publication Date:
September 15, 2016
Filing Date:
March 04, 2016
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04L12/44; H04B10/272
Domestic Patent References:
| WO2010123143A1 | 2010-10-28 |
Foreign References:
| JP2008283461A | 2008-11-20 | |||
| JP2013192064A | 2013-09-26 | |||
| JP2015056671A | 2015-03-23 |
Other References:
See also references of EP 3267630A4
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
Shigeki Yamakawa (JP)
Shigeki Yamakawa (JP)
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