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WO-2026092768-A1 - ENERGY SAVING STATE CONTROL METHOD AND APPARATUS, AND DEVICE, SYSTEM AND MEDIUM

WO2026092768A1WO 2026092768 A1WO2026092768 A1WO 2026092768A1WO-2026092768-A1

Abstract

Disclosed are an energy saving state control method and apparatus, and a device, a system and a medium, which belong to the technical field of optical communications. The method comprises: an OLT determining that a plurality of ONUs connected to the OLT are all in energy saving states; and sending an energy saving instruction message to the plurality of ONUs, wherein the energy saving instruction message is used for instructing the ONUs to set the energy saving states on the basis of energy saving configuration information, and the energy saving configuration information comprises the duration of a low-power-consumption state and the duration of an awake state. The method can realize the synchronization of the energy saving states of the plurality of ONUs.

Inventors

  • ZHAN, Jinguang
  • LI, JIN
  • LI, HONGBO

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260507
Application Date
20251104
Priority Date
20241104

Claims (20)

  1. A method for controlling energy-saving states, characterized in that it is applied to an optical line terminal, the optical line terminal being connected to multiple optical network units, comprising: It is determined that at least two optical network units among the plurality of optical network units are in a power-saving state; A power saving instruction message is sent to the at least two optical network units. The power saving instruction message is used to instruct the optical network units to set a power saving state based on power saving configuration information, which includes the duration of the low power state and the duration of the wake-up state.
  2. According to the method of claim 1, the energy-saving indication message is a sleep permission message.
  3. The method according to claim 1 or 2 is characterized in that the energy-saving indication message is used to force the optical network unit into an energy-saving state.
  4. The method according to any one of claims 1 to 3, characterized in that the method further comprises: Before sending the energy-saving instruction message to the at least two optical network units, a wake-up message is sent to the at least two optical network units.
  5. According to the method of claim 4, the wake-up message is a sleep-allowed-off message or a forced-wake-up indication.
  6. The method according to claim 4 or 5, characterized in that the method further comprises: The energy-saving configuration information is sent to the at least two optical network units.
  7. The method according to claim 6, wherein sending energy-saving configuration information to the at least two optical network units includes: Sending an Optical Network Unit Management and Control Interface (OMCI) message to the at least two optical network units, the OMCI message carrying the energy-saving configuration information; or... Physical layer operation management and maintenance (PLOAM) messages are sent to the at least two optical network units, the PLOAM messages carrying the energy-saving configuration information.
  8. The method according to claim 7, wherein sending the OMCI message to the at least two optical network units comprises: After sending the wake-up message to the at least two optical network units and before sending the power saving instruction message to the at least two optical network units, the OMCI message is sent to the plurality of optical network units.
  9. The method according to any one of claims 1 to 3, wherein the energy-saving indication message includes a first time, the energy-saving indication message is used to instruct the optical network unit to take the first time as the start time of the first wake-up state, and the first wake-up state is the next wake-up state after the optical network unit receives the wake-up state of the energy-saving indication message; Alternatively, the power saving instruction message may include a second time, which instructs the optical network unit to use the second time as the end time of the second wake-up state.
  10. The method according to any one of claims 1 to 3 and claim 9, characterized in that the method further comprises: The energy-saving configuration information is sent to the at least two optical network units.
  11. The method according to claim 10, wherein sending the energy-saving configuration information to the at least two optical network units includes: An Optical Network Unit Management and Control Interface (OMCI) message is sent to the at least two optical network units, the OMCI message carrying the energy-saving configuration information.
  12. The method according to any one of claims 1 to 11, characterized in that the method further comprises: Upon receiving a sleep power-saving request from one of the plurality of optical network units, determine whether at least two of the plurality of optical network units are in a power-saving state; or... Periodically determine whether at least two of the plurality of optical network units are in an energy-saving state.
  13. A method for controlling energy-saving states, characterized in that it is applied to a first optical network unit, the method comprising: The optical line terminal receives an energy-saving instruction message, wherein the energy-saving instruction message is sent by the optical line terminal after determining that at least two optical network units among the multiple optical network units connected to the optical line terminal are in an energy-saving state, the first optical network unit is one of the at least two optical network units, and the energy-saving instruction message is used to instruct the optical network unit to set an energy-saving state based on energy-saving configuration information, the energy-saving configuration information including the duration of the low-power state and the duration of the wake-up state. Set the energy-saving status according to the energy-saving instruction message.
  14. The method according to claim 13, wherein the energy-saving indication message is a sleep permission message.
  15. The method according to claim 13 or 14 is characterized in that the energy-saving indication message is used to force the optical network unit into an energy-saving state.
  16. The method according to any one of claims 13 to 15, characterized in that the method further comprises: Receive a wake-up message, which is sent by the optical line terminal before sending the energy-saving instruction message.
  17. According to the method of claim 16, the wake-up message is a sleep-allowed-off message or a forced-wake-up indication.
  18. The method according to claim 16 or 17, characterized in that the method further comprises: Receive the energy-saving configuration information sent by the optical line terminal.
  19. According to the method of claim 18, the step of receiving the energy-saving configuration information sent by the master device includes: Receive an Optical Network Unit Management and Control Interface (OMCI) message sent by the optical line terminal, the OMCI message carrying the energy-saving configuration information; or... The system receives a Physical Layer Operation Management and Maintenance (PLOAM) message sent by the optical line terminal, the PLOAM message carrying the energy-saving configuration information.
  20. The method according to claim 19, characterized in that, receiving the Optical Network Unit Management and Control Interface (OMCI) message sent by the optical line terminal includes: The OMCI message is received after the wake-up message is received and before the power saving indication message is received.

Description

Methods, devices, equipment, systems, and media for controlling energy-saving states This application claims priority to Chinese Patent Application No. 202411566853.1, filed on November 4, 2024, entitled "Method, Apparatus, Equipment, System and Medium for Controlling Energy-Saving State", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of optical communication technology, and in particular to a method, apparatus, device, system and medium for controlling energy-saving status. Background Technology In optical access networks, the power consumption of optical communication equipment has received widespread attention. In related technologies, some energy-saving management strategies have been developed for ONUs in PON (passive optical network) systems. When the optical line terminal (OLT) allows the optical network unit (ONU) to enter an energy-saving state, if the ONU needs to enter this state, it will send a sleep request message to the OLT. In the energy-saving state, the ONU cycles between a wake-up state and a low-power state. In the low-power state, some modules of the ONU are permanently turned off, while others are periodically turned on, thereby reducing the ONU's power consumption. However, since each ONU enters the power-saving state at different times, the duration of the wake-up state and the duration of the low-power state may also be different. Therefore, the power-saving states of each ONU are not synchronized. Summary of the Invention This application provides a method, apparatus, equipment, system, and medium for controlling energy-saving status, which can realize the synchronization of energy-saving status of multiple ONUs. Firstly, this application provides a method for controlling an energy-saving state. This method is executed by an OLT. The method includes: the OLT determining that at least two ONUs among a plurality of ONUs connected to the OLT are in an energy-saving state; and sending an energy-saving instruction message to the at least two ONUs in the energy-saving state, the energy-saving instruction message instructing the ONUs to set an energy-saving state based on energy-saving configuration information, the energy-saving configuration information including the duration of a low-power state and the duration of a wake-up state. In this application, when at least two ONUs in energy-saving mode receive the energy-saving instruction message, they all set their energy-saving mode based on the energy-saving configuration information, thus achieving synchronization of the energy-saving modes of the at least two ONUs. That is, the OLT can control at least some of the ONUs connected to the OLT to synchronize their energy-saving modes through the energy-saving instruction message. Optionally, the ONU's power-saving states include a low-power state and a wake-up state. In the low-power state, at least some modules of the ONU are turned off to reduce the ONU's power consumption. When an ONU is in a low-power state, the OLT needs to store the ONU's downlink data and send it to the ONU after it enters the wake-up state. Therefore, if the low-power state is prolonged and the power-saving states of the various ONUs are not synchronized, and the downlink data from these multiple ONUs needs to be sent in a queue, the ONU corresponding to the first received downlink data may be unable to send due to its low-power state, causing subsequent downlink data to also be unable to be sent to the corresponding ONU. This results in downlink data congestion across multiple ONUs, thus requiring the OLT to store a large amount of data and placing high demands on its storage capacity. This application synchronizes the ONU's power-saving state, allowing all ONUs' downlink data to be sent out during the wake-up state, avoiding downlink data congestion and reducing the storage capacity requirements of the OLT. Optionally, the energy-saving indication message is a sleep permission message. This energy-saving indication message can be obtained by extending the sleep permission message, reusing the existing message format and making implementation convenient. In some examples, the energy-saving indication message is used to force the ONU to enter an energy-saving state. Forcing the ONU to enter an energy-saving state means forcibly interrupting the ONU's current state and compelling it to enter an energy-saving state. When multiple ONUs receive this energy-saving indication message, the energy-saving states of these multiple ONUs can be synchronized. In the first possible implementation, each ONU needs to exit the energy-saving state first and then synchronously enter the energy-saving state to achieve synchronization of the energy-saving states of multiple ONUs. In this first possible implementation, the method further includes: sending a wake-up message to the plurality of ONUs before sending the energy-saving indication message to the plurali