Relay apparatus, optical access system and relay method

Patent metadata

Field	Value
Publication number	US-12526557-B2
Application number	US-202118285591-A
Country	US
Kind code	B2
Filing date	Apr 9, 2021
Priority date	Apr 9, 2021
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

Provided a relay device that performs relay among a plurality of optical communication devices that perform communication using at least time division multiplexing, the device including a data length acquisition unit configured to acquire information on a data length of an uplink signal transmitted from the optical communication device using the uplink signal, a management control signal generation unit configured to generate a management control signal used for management and control, a management control signal division unit configured to divide the generated management control signal based on the information on the data length of the uplink signal acquired by the data length acquisition unit, and a management control signal superimposition unit configured to superimpose the divided management control signal on the uplink signal and transfers the superimposed signal to another optical communication device.

First claim

The invention claimed is:

1 . A relay device that performs relay among a plurality of optical communication devices that perform communication using at least time division multiplexing, the device comprising:
a data length acquirer configured to acquire information on a data length of an uplink signal transmitted from an optical communication device using the uplink signal; a management control signal generator configured to generate a management control signal used for management and control; a management control signal divider configured to divide the generated management control signal based on the information on the data length of the uplink signal acquired by the data length acquirer; and a management control signal superimpositor configured to superimpose the divided management control signal on the uplink signal and transfers the superimposed signal to another optical communication device.

2 . The relay device according to claim 1 , wherein the management control signal divider divides the management control signal into a size not exceeding a data length indicated by the information on the data length of the uplink signal.

3 . The relay device according to claim 1 , further comprising
a brancher configured to branch the uplink signal transmitted from the optical communication device, wherein the management control signal superimpositor superimposes the divided management control signal on the uplink signal to which a delay is given on one branched path.

4 . The relay device according to claim 1 , further comprising
a user information acquirer configured to acquire transmission source information indicating a transmission source of the uplink signal from the uplink signal, wherein the management control signal generator is provided for each optical communication device, and the management control signal divider divides the management control signal generated by the management control signal generator related to a transmission source optical communication device indicated by the transmission source information acquired by the user information acquirer based on the information on the data length of the uplink signal.

5 . An optical access system comprising: a first optical communication device that performs communication using at least time division multiplexing; a second optical communication device; and a relay device that performs relay between the first optical communication device and the second optical communication device, wherein
the relay device includes a data length acquirer configured to acquire information on a data length of an uplink signal using the uplink signal transmitted from the first optical communication device, a management control signal generator configured to generate a management control signal used for management and control, a management control signal divider configured to divide the generated management control signal based on the information on the data length of the uplink signal acquired by the data length acquirer, a management control signal superimpositor configured to superimpose the divided management control signal on the uplink signal and transfers the superimposed signal to another optical communication device, a signal extractor configured to extract the divided management control signal superimposed on the uplink signal transferred from the relay device, and an integrator configured to integrate the divided management control signals to restore the management control signal.

6 . The optical access system according to claim 5 , further comprising
a management control device configured to manage and control the first optical communication device, wherein the management control device includes a receiver configured to receive the uplink signal transferred from the relay device, the signal extractor, and the integrator.

7 . A relay method performed by a relay device that performs relay among a plurality of optical communication devices that perform communication using at least time division multiplexing, the method comprising:
acquiring information on a data length of an uplink signal transmitted from the optical communication device using the uplink signal; generating a management control signal used for management and control; dividing the generated management control signal based on the acquired information on the data length of the uplink signal; and superimposing the divided management control signal on the uplink signal and transferring the superimposed signal to another optical communication device.

Assignees

• Ntt Inc

Inventors

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

Classifications

• H04Q2011/0086

  Network resource allocation, dimensioning or optimisation · CPC title

• H04Q2011/0079

  Operation or maintenance aspects · CPC title

• H04J14/08

  Time-division multiplex systems · CPC title

• H04B10/272

  Star-type networks {or tree-type networks} · CPC title

• H04J3/00

  Time-division multiplex systems (H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q) · CPC title