Title:
光伝送装置、光集線ネットワークシステム及びデータ送信指示方法
Document Type and Number:
Japanese Patent JP6667428
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simultaneously implement reduction of delay in data transmission from an ONU, reduction of delay fluctuation, avoidance of delay fluctuation of a downlink signal and suppression of band consumption with a control signal during a communication between an OLT and the ONU.SOLUTION: An OLT 21 transmits, using a gate signal, an allocation band to which a data transmissible band of an ONU 32Aa is allocated, and allocation transmission timing of a term corresponding to a DBA term T within the DBA term T in which DBA calculation for dynamically allocating a band corresponding to traffic volume of data that the ONU 32Aa receives from a host 43a, is performed at predetermined intervals, through the DBA calculation. Regarding the ONU 32Aa, an instruction of data transmission to the OLT 21 is performed on the ONU 32Aa in accordance with divided transmission timing of a dividing number (n) obtained by dividing an allocation interval corresponding to a term of the allocated transmission timing in the gate signal received from the OLT 21 by a data transmission period predetermined for the ONU 32Aa and the divided allocation band obtained by dividing an allocation band in the gate signal by the dividing number (n).SELECTED DRAWING: Figure 1
Inventors:
Masahiro Nakagawa
Namiki Masatoshi
Katsuhiro Aratani
Hidetoshi Onda
Gyoda Katsutoshi
Namiki Masatoshi
Katsuhiro Aratani
Hidetoshi Onda
Gyoda Katsutoshi
Application Number:
JP2016249732A
Publication Date:
March 18, 2020
Filing Date:
December 22, 2016
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L12/42
Domestic Patent References:
| JP2013046132A |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office