Optical network device, optical signal output control chip, and optical signal output control method

Abstract

An optical network device includes a processing circuit, a media access control circuit, and a laser module. The processing circuit determines whether to trigger or deactivate software-defined power-saving controls based on the system state of the optical network device. The media access control circuit includes a burst control circuit and a disable control circuit. The burst control circuit generates a burst enable signal based on bandwidth mapping information corresponding to the optical network device. The disable control circuit generates an uplink transmission disable signal based on the burst enable state of the burst control circuit and the software-defined power-saving control state of the processing circuit. The laser module, based on the uplink transmission disable signal, remains in a closed state between the optical network device entering an active state from a dormant state due to the processing circuit deactivating software-defined power-saving controls and the start of a subsequent burst time slot, thereby stopping the output of optical energy.

Claims

1. An optical network device, comprising: a processing circuit for determining whether to trigger or deactivate a software-defined power-saving control based on a system state of the optical network device; a media access control (MAC) circuit, comprising: a cluster control circuit for generating a cluster enable signal based on bandwidth mapping information corresponding to the optical network device; and a disable control circuit for generating an uplink transmission disable signal based on a cluster enable state of the cluster control circuit and a software-defined power-saving control state of the processing circuit; and a laser module coupled to the cluster control circuit and the disable control circuit, the laser module being configured to, based on the uplink transmission disable signal, be in a closed state between when the optical network device enters an active state from a dormant state due to the processing circuit deactivating the software-defined power-saving control and the start of a subsequent first cluster time slot, thereby stopping the output of optical energy until the optical network device enters the first cluster time slot.

2. The optical network device as described in claim 1, wherein the disable control circuit stops transmitting the uplink transmission disable signal to the laser module after an enable waiting time for the optical network device to enter one of the active states, thereby enabling the laser module to enter an enable state.

3. The optical network device as claimed in claim 2, wherein the activation waiting time is not greater than the remaining time for the optical network device to enter one of the first cluster time slots minus the activation delay time of one of the laser modules.

4. The optical network device as claimed in claim 2, wherein the cluster control circuit transmits the cluster enable signal to the laser module when the optical network device enters the first cluster time slot, so that the laser module outputs an optical signal in the first cluster time slot.

5. The optical network device as claimed in claim 1, wherein the laser module remains in an enabled state when the processing circuit triggers the software to set power-saving control and the optical network device is located in a second cluster time slot, and switches from the enabled state to the disabled state at the end of the second cluster time slot.

6. The optical network device as claimed in claim 5, wherein the disable control circuit transmits the uplink transmission disable signal to the laser module after a shutdown waiting time during which the optical network device enters one of the active states, causing the laser module to enter the shutdown state.

7. The optical network device as claimed in claim 6, wherein the shutdown waiting time is the end time of one of the second burst time slots minus the current system time of one of the optical network devices.

8. The optical network apparatus as claimed in claim 1, wherein the media access control circuitry supports a passive optical network (PON) protocol.

9. An optical signal output control chip for use in an optical network unit (ONU) of a laser module, the optical signal output control chip comprising: a processing circuit for determining whether to trigger or deactivate a software-defined power-saving control based on a system state of the ONU; a clustering control circuit for generating a clustering enable signal based on bandwidth mapping information corresponding to the ONU; and a disable control circuit for generating an uplink transmission disable signal based on a clustering enable state of the clustering control circuit and a software-defined power-saving control state of the processing circuit, such that the laser module is in a closed state between the ONU entering an active state from a dormant state due to the deactivation of the software-defined power-saving control by the processing circuit and the start of a subsequent first clustering time slot, thereby stopping the output of optical energy until the ONU enters the first clustering time slot.

10. An optical signal output control method for an optical network unit having a laser module, the optical signal output control method comprising: deactivating a software-defined power-saving control of the optical network unit to cause the optical network unit to enter an active state from a dormant state; and causing the laser module to be in a closed state between the optical network unit entering the active state and the start of a subsequent first cluster emission slot, to stop outputting optical energy until the optical network unit enters the first cluster emission slot.

Images