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

• US 8,913,890 B2
• Filed: 04/29/2013
• Issued: 12/16/2014
• Est. Priority Date: 12/20/2005
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Gao, Hai, Dong, Yinghua
• Primary Examiner(s): Jacob, Oommen
• Application Number:
  US13/872,714
• Publication Number:
  US 20130236179A1
• Time in Patent Office: 596 Days
• Field of Search: 398/67, 398/66, 398/43, 725/111
• US Class Current: 398/67
• CPC Class Codes: H04J 14/0221 Power control, e.g. to keep the total optical power constant
• CPC Class Codes: H04Q 11/0067 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 Class Codes: H04Q 2011/0049 Crosstalk reduction; Noise; Power budget
• CPC Class Codes: H04Q 2011/0079 Operation or maintenance aspects

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.

Claims

1. A method, comprising:

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, wherein the first power supply mode is operated at lower power than a power provided in a second power supply mode, wherein in the second power supply mode, a power supply is provided to the PON user terminal such that the PON user terminal can provide service data from an optical line termination (OLT) to a user and communicate with the OLT via an established upstream connection;

sending the PON protocol message; and

activating the first power supply mode in which a plurality of units of the PON user terminal comprising an optical-electrical conversion module, a PON protocol processing module and a service processing unit (SPU) are disabled to break both upstream communication and downstream communication with the OLT, while an activity detection operation on the SPU remains active.

2. The method of claim 1, wherein in the first power supply mode, the PON user terminal is inactive in providing service data to the user.

3. The method of claim 1, wherein in the first power supply mode, the PON user terminal is configured to detect whether the upstream PONIU is reactivated and an upstream connection with the OLT is reestablished.

4. The method of claim 3, further comprising:

sending another PON protocol message from the PON user terminal in the first power supply mode to the OLT, wherein the PON protocol message comprises the identifier of the PON user terminal and an action indication indicating that the PON user terminal intends to be operated in the second power supply mode after the PON user terminal detect the upstream PONIU is reactivated and upstream connection with the OLT is reestablished.

5. The method of claim 1, wherein the PON protocol message is a physical layer operation administration maintenance (PLOAM) message or an Optical Network Terminal management and control interface (OMCI) message.

11. The method of claim 1, wherein the step of activating the first power supply mode comprises:

activating the first power supply mode when a backup power source of the PON user terminal is used and a main power failures.

6. A passive optical network (PON) component, comprising a processor which is configured to:

generate 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, wherein the first power supply mode is operated at lower power than a power provided in a second power supply mode, wherein in the second power supply mode, a power supply is provided to the PON user terminal such that the PON user terminal can provide service data from an optical line termination (OLT) to a user and communicate with the OLT via an established upstream connection; and

send the PON protocol message; and

activate the first power supply mode, in which a plurality of units of the PON user terminal comprising an optical-electrical conversion module, a PON protocol processing module and a service processing unit (SPU) are disabled to break both upstream communication and downstream communication with the OLT, while an activity detection operation on the SPU remains active.

7. The PON component of claim 6, wherein in the first power supply mode, the PON component is inactive in providing service data to the user.

8. The PON component of claim 6, wherein in the first power supply mode, the PON component is further configured to detect whether the upstream PONIU is reactivated and an upstream connection with the OLT is reestablished.

9. The PON component of claim 8, wherein the PON component is further configured to:

send another PON protocol message from the PON component in the first power supply mode to the OLT, wherein the PON protocol message comprises the identifier of the PON user terminal and an action indication indicating that the PON user terminal intends to be operated in the second power supply mode after the PON user terminal detect the upstream PONIU is reactivated and upstream connection with the OLT is reestablished.

10. The PON component of claim 6, wherein the PON protocol message is a physical layer operation administration maintenance (PLOAM) message or an Optical Network Terminal management and control interface (OMCI) message.

12. The PON component of claim 6, wherein the processor is configured to activate the first power supply mode when a backup power source of the PON user terminal is used and a main power failures.