Passive optical network user terminal and method of power supply control and power supply state reporting for the same

Abstract

The present disclosure discloses a method, wherein the method comprises generating a passive optical network (PON) protocol message, wherein the PON protocol message comprises an identifier of a PON user terminal and an action indication indicating that the PON user terminal intends to exercise a first power supply mode that is a power-saving mode. The present disclosure further provides a method for controlling the PON power supply and for reporting the power supply state. The present disclosure allows control of the energy usage of the PON user terminal to save power when a service in the PON user terminal is not used or when the user terminal uses a backup power source to supply power.

What is claimed is: 
     
         1 . A passive optical network (PON) component, comprising:
 a plurality of service processing units configured to process service data;   a service state checking unit configured to monitor usage of the plurality of service processing units;   a power supply control unit configured to activate an energy-saving power supply mode on at least one service processing unit when the at least one service processing unit is not in use; and   wherein the PON component sends an alert message to an optical line terminal (OLT) when the at least one service processing unit of the PON component enters an energy-saving power supply mode, the alert message comprises an identifier of the PON component, and the alert message is an Operation Administration Maintenance (OAM) message.   
     
     
         2 . The PON component of  claim 1 , wherein the alert message further comprises an action identifier that indicates an operation of entering the energy-saving power supply mode. 
     
     
         3 . The PON component of  claim 2 , wherein the PON component further receives a reply message from the OLT as a response to the alert message. 
     
     
         4 . The PON component of  claim 1 , wherein the power supply control unit activates the energy-saving power supply mode on the at least one service processing unit by disconnecting or decreasing a power supply to the at least one service processing unit. 
     
     
         5 . The PON component of  claim 1 , further comprising:
 a power source comprising a main power supply provided by a user premises; and   a backup battery power supply installed in the PON component.   
     
     
         6 . The PON component of  claim 5 , wherein the power supply control unit is further configured to activate the energy-saving power supply mode on the at least one service processing unit when the main power source is disconnected and the backup battery power supply is providing power. 
     
     
         7 . The PON component of  claim 5 , wherein the power supply control unit is further configured to activate the energy-saving power supply mode on the at least one service processing unit when the backup battery power supply drops to a preset level. 
     
     
         8 . The PON component of  claim 1 , further comprising:
 a PON interface unit configured to receive the service data from a PON system; and   a service data distribution unit configured to receive the service data from the PON interface unit and distribute a different type of service data to each of the plurality of service processing units.   
     
     
         9 . The PON component of  claim 8 , wherein the power supply control unit is further configured to:
 activate, upon determining that none of the service processing units is in use, the energy-saving power supply mode on all of the plurality of service processing units, the PON interface unit, and the service data distribution unit; and   deactivate, upon detecting that one of the service processing units is needed, the energy-saving power supply on the needed service processing unit, the PON interface unit, and the service data distribution unit.   
     
     
         10 . A method comprising:
 checking a usage state of each of a plurality of service processing units in a passive optical network (PON) user terminal;   activating an energy-saving power supply mode on at least one service processing unit upon determining that the at least one service processing unit is not in use; and   sending an alert message to an optical line terminal (OLT) when the at least one service processing unit of the PON user terminal enters an energy-saving power supply mode, wherein the alert message comprises an identifier of the PON user terminal, and the alert message is Operation Administration Maintenance (OAM) message.   
     
     
         11 . The method of  claim 10 , wherein the alert message further comprises an action identifier that indicates an operation of entering the energy-saving power supply mode. 
     
     
         12 . The method of  claim 10 , wherein activating an energy-saving power supply on at least one service processing unit of the PON user terminal comprises:
 disconnecting or decreasing a power supply to the at least one service processing unit in the PON user terminal.   
     
     
         13 . The method of  claim 10 , wherein the PON user terminal comprises a main power supply provided by a user premises and a backup battery power supply installed in the PON user terminal. 
     
     
         14 . The method of  claim 13 , further comprising:
 activating the energy-saving power supply mode on the at least one service processing unit when the main power source is disconnected and the backup battery power supply is providing power.   
     
     
         15 . The method of  claim 13 , further comprising:
 activating the energy-saving power supply mode on the at least one service processing unit when the backup power source drops to a preset level.   
     
     
         16 . The method of  claim 1 , further comprising:
 activating, upon determining that none of plurality of service processing units is in use, the energy-saving power supply mode on all of the plurality of service processing units, a passive optical network interface unit, and a service data distribution unit; and   deactivating, upon detecting that one of the service processing units is needed, the energy-saving power supply on the needed service processing unit, the passive optical network interface unit, and the service data distribution unit.   
     
     
         17 . A method comprising:
 activating an energy-saving power supply mode on an optical network unit (ONU) in responsive to detection of inactivity at a service processing unit in the ONU;   sending an alert message to an optical line terminal (OLT) to alert the OLT of a power supply state change in the ONU when the ONU enters the energy-saving power supply mode; and   wherein the alert message comprises an identifier of the ONU that enters the energy-saving power supply mode and an action identifier that indicates an operation of entering the energy-saving power supply mode, and wherein the alert message is Operation Administration Maintenance (OAM) message.   
     
     
         18 . The method of  claim 17 , wherein the action identifier identifies which of a plurality of service processing units within the ONU had a power supply state change. 
     
     
         19 . The method of  claim 18 , wherein the ONU comprises a main power supply provided by a user premises and a backup battery power supply installed in a PON user terminal. 
     
     
         20 . The method of  claim 19 , further comprising:
 activating the energy-saving power supply mode on at least one of the service processing units when the backup battery power supply drops to a preset level.