Title:
BAND UNUSED PERIOD DETECTING DEVICE, SUBSCRIBER LINE TERMINAL DEVICE, AND BAND UNUSED PERIOD DETECTING METHOD
Document Type and Number:
Japanese Patent JP2019050449
Kind Code:
A
Abstract:
To detect a band unused period of an upstream signal at an arbitrary timing.SOLUTION: A band unused period detecting method includes: acquiring linkage information used when an optical transmission system performs bandwidth allocation; arranging information indicating a period assigned to transmission of a signal obtained from acquired cooperation information in time series on a time axis to make a transmission period pattern of the signal; dividing the time axis on the basis of a length of a frame used in a time division duplex system; creating a data set by overlaying the divided time axes; detecting information about a frame format corresponding to a data set on the basis of the generated data set and information of a plurality of frame formats of a predetermined time division duplex system; calculating a band unused period in the optical transmission system on the basis of the information about the detected frame format; and calculating a period for allocating a band in a band unused period on the basis of the reference time obtained from the cooperation information acquired first and the calculated bandwidth unused period information.SELECTED DRAWING: Figure 3
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Inventors:
HISANO DAISUKE
UZAWA HIROYUKI
NOMURA HIROKO
SHIMADA TATSUYA
UZAWA HIROYUKI
NOMURA HIROKO
SHIMADA TATSUYA
Application Number:
JP2017172391A
Publication Date:
March 28, 2019
Filing Date:
September 07, 2017
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H04L12/44; H04W16/26; H04W88/08; H04W92/04
Domestic Patent References:
| JP2016146584A | 2016-08-12 | |||
| JP2018056689A | 2018-04-05 |
Foreign References:
| WO2016204226A1 | 2016-12-22 | |||
| WO2017061407A1 | 2017-04-13 |
Attorney, Agent or Firm:
Shiga International Patent Office