Optical communication device, optical access system and optical communication method

Patent metadata

Field	Value
Publication number	US-12531633-B2
Application number	US-202018037051-A
Country	US
Kind code	B2
Filing date	Nov 19, 2020
Priority date	Nov 19, 2020
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

An optical communication device that communicates with another optical communication device using at least a time division multiplexing method, the optical communication device includes: a band request unit that requests a band for transmitting a management control signal used for management and control; and a transmitting unit that transmits the management control signal as a burst signal using a band assigned to be able to transmit data having a data length or more obtained based on a transmission rate of the management control signal, a transmission rate of a main signal, and a data length of the management control signal.

First claim

The invention claimed is:

1 . An optical communication device that communicates with another optical communication device using at least a time division multiplexing method, the optical communication device comprising:
a processor; and a storage medium having computer program instructions stored thereon, when executed by the processor, perform to: request a band for transmitting a AMCC signal used for management and control; and generate the AMCC signal; and a transmitter configured to transmit the AMCC signal as a burst signal using a band assigned to be able to transmit data having a data length or more obtained based on a transmission rate of the AMCC signal, a transmission rate of a main signal, and a data length of the AMCC signal.

2 . The optical communication device according to claim 1 , wherein the computer program instructions further perform to:
calculate a converted data length based on a following formula ( 1 ) using AMCC signal transmission rate indicating the transmission rate of the AMCC signal, the transmission rate of the main signal, and AMCC signal data length indicating the data length of the AMCC; and compare the data length of the converted data length with a data length of the main signal accumulated in a buffer, and generates a report frame including an assigned amount of a band required for transmitting the AMCC signal as longer of the converted data length or the data length of the main signal

Formula
⁢

(
1
)

Converted
⁢

data

length

=

AMCC
⁢

signal
⁢

data
⁢

length

[
byte
]

×
8

AMCC
⁢

signal
⁢

transmission

rate

[

bit
/
s

]

×

main
⁢

signal

transmission
⁢

rate

[

bit
/
x

]

.

3 . An optical communication device that communicates with another optical communication device using at least a time division multiplexing method, the optical communication device comprising:
a processor; and a storage medium having computer program instructions stored thereon, when executed by the processor, perform to: calculate a converted data length based on a following formula ( 1 ) using AMCC signal transmission rate indicating a transmission rate of an AMCC signal used for management and control, main signal transmission rate indicating a transmission rate of a main signal, and AMCC signal data length indicating a data length of the AMCC signal notified from the another optical communication device; compare the data length of the converted data length with a data length of the main signal accumulated in a buffer of the other optical communication device; and determine a band to be assigned to the other optical communication device according to a comparison result of the comparator, and transmits a gate frame including information of an assigned amount of the determined band to the other optical communication device

Formula
⁢

(
1
)

Converted
⁢

data

length

=

AMCC
⁢

signal
⁢

data
⁢

length

Assignees

• Ntt Inc

Inventors

• Honda Kazuaki
• Senoo Yumiko
• Kaneko Shin
• Hara Kazutaka

Classifications

• H04B10/50

  Transmitters · CPC title

• H04Q11/0067 Primary

  Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring · CPC title

• H04L12/44

  Star or tree networks · CPC title

• H04J14/0275

  using an optical service channel · CPC title

• H04J14/0227

  Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation · CPC title