CN103916257A - Optical network unit state switching method and device - Google Patents
Optical network unit state switching method and device Download PDFInfo
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- CN103916257A CN103916257A CN201310002229.4A CN201310002229A CN103916257A CN 103916257 A CN103916257 A CN 103916257A CN 201310002229 A CN201310002229 A CN 201310002229A CN 103916257 A CN103916257 A CN 103916257A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 86
- 238000012423 maintenance Methods 0.000 claims abstract description 3
- 230000004913 activation Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 3
- 230000004622 sleep time Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/272—Star-type networks or tree-type networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0086—Network resource allocation, dimensioning or optimisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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Abstract
The invention discloses an optical network unit (ONU) state switching method. The method comprises the steps that an ONU generates downlink sleep signals when the ONU is in the monitoring state and no service flow exists in the downlink direction, the ONU is directly switched to be in the sleeping state from the monitoring state according to the downlink sleep signals, and then the ONU sends a physical layer operation, administration and maintenance (PLOAM) message indicating that the ONU is in the sleeping state to an optimal line terminal (OLT). The invention further discloses an ONU state switching device. By the adoption of the method and device, the problem that the ONU can not be directly switched to be in the monitoring state or in the sleeping state in a 10 Gigabit passive optical network (XGPON) system is solved, and energy saving is achieved to the maximum extent when the XGPON system is in the energy-saving state. According to the method and device, uplink and downlink power consumption is administered more precisely by increasing the number of the downlink sleep signals, and power consumption administration efficiency is improved.
Description
Technical Field
The invention relates to the technical field of energy conservation of a Gigabit-capable passive optical Network (XGPON) system, in particular to a state switching method and device of an Optical Network Unit (ONU).
Background
The energy consumption of the existing network system is very remarkable, and the energy conservation and emission reduction of the network system are not slow. The XGPON system is a widely used Optical network transmission system at present, and a basic form of a topology structure of the XGPON system is a bus type, that is, one Optical Line Terminal (OLT) is connected to a plurality of ONUs, so that energy saving of the ONUs is very critical to energy saving of the entire XGPON system.
Fig. 1 is a schematic diagram of a switching flow of an ONU state machine of an existing XGPON system, and as shown in fig. 1, for an ONU, energy saving is divided into two cases, namely, a sleep state in which the ONU is completely inoperative, that is, there is no traffic in both uplink and downlink directions; the method comprises the steps that firstly, in a monitoring state, an ONU (optical network unit) works normally in a downlink mode and does not work in an uplink mode, namely, service flow exists in the downlink direction and no service flow exists in the uplink direction; here, the listening states include a Doze (Doze Aware) state and a deep listening (Listen) state, and the Sleep states include a Sleep subconscious (Sleep Aware) state and a deep Sleep (Asleep) state. However, when the ONU is in the monitoring state, if there is no traffic flow in the downstream direction of the ONU, the ONU needs to wake up the ONU by the OLT or wake up the wake-up state machine locally, so that the ONU switches to the Active help state first and then judges the current condition again to enter the corresponding sleep state, and cannot directly switch between the monitoring state and the sleep state, thereby increasing power consumption invisibly, and having low energy-saving efficiency and failing to achieve maximum energy saving.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method and an apparatus for switching the state of an ONU, which can solve the problem that the ONU in the conventional XGPON system cannot directly switch between the listening state and the sleeping state.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a method for switching ONU states, which comprises the following steps:
when the ONU is in the monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal, directly switches to the sleep state from the monitoring state according to the downlink sleep signal, and sends a Physical layer operation, Administration and Maintenance (PLOAM) message that the ONU has entered the sleep state to an optical line terminal OLT.
In the above scheme, the monitoring states include a doze state and a deep monitoring state, and the sleep states include a sleep subconscious state and a deep sleep state; the method further comprises the following steps:
if no local wake-up or OLT wake-up exists, the doze state and the deep monitoring state are switched between the doze state and the deep monitoring state according to set time; and the sleep subconscious state and the deep sleep state are switched between the sleep subconscious state and the deep sleep state according to set time.
In the above solution, when the ONU is in the monitoring state, if there is no traffic flow in the downlink direction, the ONU generates a downlink sleep signal, and directly switches from the monitoring state to the sleep state according to the downlink sleep signal, including:
when the ONU is in a doze state, if no traffic flow exists in a downlink direction within a set doze time, the ONU generates a downlink sleep signal, directly switches from the doze state to a sleep subconscious state according to the downlink sleep signal, and sends a PLOAM message that the ONU enters the sleep state to the OLT.
In the above solution, when the ONU is in the monitoring state, if there is no traffic flow in the downlink direction, the ONU generates a downlink sleep signal, and directly switches from the monitoring state to the sleep state according to the downlink sleep signal, including:
when the ONU is in a deep monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal, after the set time of the deep monitoring state, the ONU switches from the deep monitoring state to a dozing state according to the downlink sleep signal, then switches from the dozing state to a sleep subconscious state, and sends a PLOAM message that the ONU has entered the sleep state to the OLT.
In the above scheme, the method further comprises: when the ONU is in the monitoring state, if no service flow exists in the downlink direction, the ONU can be firstly awakened through local or OLT and switched from the monitoring state to the activation state, and if the set activation holding time is up, the ONU is switched from the activation state to the free state and then switched from the free state to the sleep state.
In the above scheme, the method further comprises: the OLT sets the doze time, the deep monitoring time and the activation holding time.
The invention also provides an ONU state switching device, which comprises a flow acquisition module, a signal driving module and a state machine; wherein,
the traffic collection module is used for collecting the traffic in the downlink direction and sending the collected traffic information in the downlink direction to the signal driving module;
the signal driving module is used for generating a downlink sleep signal according to the service traffic information in the downlink direction acquired by the traffic acquisition module;
and the state machine is used for directly switching the monitoring state to the sleeping state according to the downlink sleeping signal of the signal driving module.
In the above scheme, the monitoring states include a doze state and a deep monitoring state, and the sleep states include a sleep subconscious state and a deep sleep state;
the state machine is specifically used for directly switching from a doze state to a sleep subconscious state according to the downlink sleep signal of the signal driving module.
In the above solution, the state machine is specifically configured to,
when the OLT is in the doze state, if a downlink sleep signal generated by the signal driving module is received within a set doze time, the OLT is directly switched to the sleep subconscious state from the doze state according to the downlink sleep signal, and a PLOAM message which enters the sleep state is sent to the OLT.
In the foregoing solution, the state machine is specifically configured to:
when the OLT is in the deep monitoring state, if a downlink sleep signal generated by the signal driving module is received, after the set time of the deep monitoring state is over, the deep monitoring state is switched to a doze state, then the doze state is switched to a sleep subconscious state, and PLOAM information which enters the sleep state is sent to the OLT.
In the foregoing solution, the state machine is further configured to:
when the monitoring state is in, the monitoring state is switched to the active state through local awakening or OLT awakening, if the set active holding time is up, the active state is switched to the free state, and then the free state is switched to the sleep state.
The ONU state switching method and the ONU state switching device solve the problem that the ONU in the conventional XGPON system cannot be directly switched between the monitoring state and the sleeping state, realize the maximum energy conservation of the ONU of the XGPON system in the energy-saving state, improve the energy-saving efficiency and improve the energy-saving efficiency of the XGPON system; according to the invention, the uplink and downlink power consumption is managed more finely by adding the downlink sleep signal, the ONU can be directly switched between the monitoring state and the sleep state, and the efficiency of power consumption management is improved; meanwhile, the ONU of the XGPON system realizes the compatibility with the ONU of the existing XGPON system.
Drawings
Fig. 1 is a schematic diagram illustrating a switching process of a state machine of a conventional ONU;
fig. 2 is a schematic diagram of a switching process of a state machine of an ONU according to the present invention;
fig. 3 is a flowchart illustrating an implementation of an ONU state switching method according to the present invention;
fig. 4 is a flowchart of implementing ONU energy-saving state switching according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a configuration of an ONU state switching device according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 2 is a flowchart illustrating an implementation of an ONU state switching method according to the present invention, and as shown in fig. 2, the method includes:
step 201: when the ONU is in a monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal;
step 202: and directly switching from a monitoring state to a sleeping state according to the downlink sleeping signal, and sending a PLOAM message that the ONU enters the sleeping state to the OLT.
Specifically, the monitoring states include a doze state and a deep monitoring state, and the sleep states include a sleep subconscious state and a deep sleep state; if no local wake-up or OLT wake-up exists, the doze state and the deep monitoring state are switched between the doze state and the deep monitoring state according to set time; the sleep subconscious state and the deep sleep state are switched between the sleep subconscious state and the deep sleep state according to set time;
if no local wake-up or OLT wake-up exists, the ONU is switched from the doze state to the deep monitoring state after the set doze time is up; after the set deep monitoring time is up, the ONU is switched from the deep monitoring state to the doze state; in this way, the doze state and the deep listening state are switched between the doze state and the deep listening state according to the set time. And similarly, the sleep subconscious state and the deep sleep state are switched between the sleep subconscious state and the deep sleep state according to the set time.
Specifically, when the ONU is in the monitoring state, if there is no traffic flow in the downlink direction, the ONU generates a downlink sleep signal, and directly switches from the monitoring state to the sleep state according to the downlink sleep signal, including:
when the ONU is in a doze state, if no traffic flow exists in a downlink direction within a set doze time, the ONU generates a downlink sleep signal, directly switches from the doze state to a sleep subconscious state according to the downlink sleep signal, and sends a PLOAM message that the ONU enters the sleep state to the OLT;
when the ONU is in a deep monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal, after the set time of the deep monitoring state, the ONU switches from the deep monitoring state to a dozing state according to the downlink sleep signal, then switches from the dozing state to a sleep subconscious state, and sends a PLOAM message that the ONU has entered the sleep state to the OLT.
Specifically, the method further comprises: when the ONU is in the monitoring state, if no service flow exists in the downlink direction, the ONU can be switched from the monitoring state to the activation state by local awakening or OLT awakening, and if the set activation holding time is up, the ONU is switched from the activation state to the free state and then is switched from the free state to the sleep state.
Specifically, the method further comprises: the OLT sets the doze time, the deep monitoring time and the activation holding time.
Fig. 3 is a schematic diagram of a switching flow of the state machine of the ONU of the present invention, as shown in fig. 3, where LSI is an uplink and downlink simultaneous sleep signal, LDI is an uplink sleep signal, and DLSI is a downlink sleep signal. In fig. 3, a denotes a Local Wakeup (LWI); b represents forced wake-up (FWI); c represents an exit energy saving instruction sa (off); d represents energy saving indication sa (on); t1 denotes activation retention time (Theld); t2 denotes sleep subconscious time or doze time (aware); t3 denotes a deep sleep time or a deep listening time (Tsleep); a denotes that the ONU has been awakened, i.e., sr (awake); b indicates that the ONU has entered the listening state, i.e., sr (doze); c indicates that the ONU has entered the sleep state, sr (sleep).
When the ONU is in an activated state, if the OLT initiates a PLOAM message of energy saving indication, namely SA (ON), to the ONU, after the ONU receives the PLOAM message of the energy saving indication of the OLT and the activation holding time passes, the ONU is switched to a Free (Active Free) state, and waits for local LSI and LDI signal indication in the Free state.
If no service flow exists in the uplink and downlink directions, the ONU generates an uplink and downlink simultaneous sleep signal LSI, the ONU is switched to a sleep subconscious state from a free state according to the LSI, and a PLOAM message that the ONU enters the sleep state is sent to the OLT, namely SR (sleep); then, the ONU switches between a sleep subconscious state and a deep sleep state; if the ONU needs to be awakened, for example, there is traffic in the upstream direction, or the OLT needs to forcibly awaken the ONU, in a sleep subconscious state, the ONU is awakened by a local awakening message, and a PLOAM message that the ONU is awakened is sent to the OLT, that is, sr (awake); in the deep sleep state, the ONU is awakened by an sa (off) message or a FWI message issued by the OLT, and an sr (awake) is sent to the OLT.
If no service flow exists in the uplink direction, the ONU generates an uplink sleep signal LDI, the ONU is switched from a free state to a doze state according to the LDI, and a PLOAM message that the ONU enters a monitoring state, namely SR (doze), is sent to the OLT; in the doze state, if there is traffic in the downlink direction, i.e. the ONU does not generate the downlink sleep signal DLSI, the ONU switches from the doze state to the deep monitor state after the set doze time elapses; in the deep monitoring state, if there is no local wake-up message or sa (off) message or FWI message issued by the OLT to wake up the ONU, after the set deep monitoring time elapses, the ONU switches from the deep monitoring state to the doze state. In the doze state, if there is no traffic flow in the downlink direction within the set doze time, the ONU generates a downlink sleep signal DLSI, and the ONU directly switches from the doze state to the sleep subconscious state according to the downlink sleep signal and sends a PLOAM message that the ONU has entered the sleep state, that is, sr (sleep); in the deep monitoring state, if there is no traffic in the downstream direction, the ONU generates a downstream sleep signal, and after the set deep monitoring time elapses, the ONU switches from the deep monitoring state to the doze state according to the downstream sleep signal, then switches from the doze state to the sleep subconscious state, and sends a PLOAM message that the ONU has entered the sleep state to the OLT.
Here, if there is no traffic flow in the uplink direction, when the ONU is in the monitoring state, the monitoring state includes a doze state and a deep monitoring state, and if there is no traffic flow in the downlink direction, the ONU may also switch from the monitoring state to the active state by local wake-up or OLT wake-up, then switch from the active state to the free state after the set active holding time is up, and then switch from the free state to the sleep state. Here, the sleep states include a sleep subconscious state and a deep sleep state, and the OLT wakes up a FWI message or an sa (off) message issued by the OLT to the ONU.
Fig. 4 is a schematic diagram of a process for implementing ONU energy saving according to an embodiment of the present invention, and as shown in fig. 4, the process includes the following steps:
step 401: the OLT acquires the equipment information of the ONU;
here, the OLT can know which ONUs connected to the OLT support the switching mode of the present invention and which ONU supports the switching mode of the related art by inquiring the secret (me) of the OLT.
Step 402: the OLT configures time parameters of an energy-saving mode for all ONUs through an ONU Management and control Interface (OMCI, ONT Management and control Interface) channel; and sends PLOAM message of SA (ON) to ONU according with entering energy-saving state condition, namely send energy-saving instruction to ONU;
here, the OLT collects uplink and downlink service information and state information of the ONUs, and comprehensively decides whether each service flow meets the condition of entering the energy-saving state according to the collected information. When no service flow exists in the uplink direction, the OLT judges that the ONU meets the condition of entering the energy-saving state, and sends an energy-saving instruction to the ONU.
Here, the time parameters of the power saving mode include: activating a holding time, a sleep subconscious time or a dozing time, a sleep time or a monitoring time, wherein the time parameters of the energy-saving modes of all the ONUs are the same.
Step 403: the OLT configures whether the ONU can enter the switching mode of the invention through the OMCI channel, if so, the step 404 is entered, otherwise, the step 405 is entered;
here, the OLT makes a decision based on the capability of each ONU supporting power saving on the premise of confirming that the ONU supports power saving: if the switching mode of the invention is supported, entering the switching mode of the invention; otherwise, entering the switching mode of the existing ONU.
Step 404: after receiving the energy-saving indication, the ONU enters a switching mode of the invention, if the ONU has no service flow in the downlink direction in a dozing state, the ONU generates a downlink sleep signal, the ONU enters a sleep subconscious state and reports PLOAM information of the ONU entering the energy-saving state; and if the data is in the deep monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal, after the set time of the deep monitoring state, the ONU is switched from the deep monitoring state to the dozing state according to the downlink sleep signal, then the dozing state is switched to the sleep subconscious state, and a PLOAM message that the ONU enters the sleep state is sent to the OLT.
Step 405: after receiving the energy-saving instruction, the ONU enters the switching mode of the existing ONU, if no service flow exists in the downlink direction in a dozing state or a deep monitoring state, the ONU is awakened to be switched to an activated state through the OLT, then the ONU is switched to a sleep subconscious state after passing through a free state, and finally the ONU reaches the deep sleep state, and a PLOAM message that the ONU enters the energy-saving state is reported.
Fig. 5 is a schematic diagram of a structure of an ONU state switching apparatus according to the present invention, and as shown in fig. 5, the ONU state switching apparatus includes a traffic collection module 51, a signal driving module 52, and a state machine 53; wherein,
the traffic collection module 51 is configured to collect traffic in a downlink direction, and send collected traffic information in the downlink direction to the signal driving module 52;
the signal driving module 52 is configured to generate a downlink sleep signal according to the traffic flow information in the downlink direction acquired by the traffic acquisition module 51;
the state machine 53 is configured to directly switch the listening state to the sleep state according to the downlink sleep signal of the signal driving module 52.
Specifically, the monitoring states include a doze state and a deep monitoring state, and the sleep states include a sleep subconscious state and a deep sleep state; the state machine 53 is specifically configured to directly switch from the doze state to the sleep subconscious state according to the downlink sleep signal of the signal driving module 52.
In particular, the state machine 53 is, in particular for,
when in the doze state, in a set doze time, if a downlink sleep signal generated by the signal driving module 52 is received, directly switching from the doze state to the sleep subconscious state according to the downlink sleep signal, and sending a PLOAM message which enters the sleep state to the OLT; otherwise, after the set doze time is over, the doze state is switched to the deep monitoring state.
Specifically, the state machine 53 is specifically configured to:
when in the deep listening state, if a downlink sleep signal generated by the signal driving module 52 is received, after the set deep listening state time elapses, the deep listening state is switched to the doze state, then the doze state is switched to the sleep subconscious state, and a PLOAM message that has entered the sleep state is sent to the OLT.
Specifically, the state machine 53 is further configured to:
when the monitoring state is in, the monitoring state can be switched to the active state through local awakening or OLT awakening, if the set active holding time is up, the active state is switched to the free state, and then the free state is switched to the sleep state.
Here, the set doze time, the set deep listening time, and the set active hold time are set by the OLT.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A method for switching the state of an Optical Network Unit (ONU), the method comprising:
when the ONU is in the monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal, the ONU is directly switched to the sleep state from the monitoring state according to the downlink sleep signal, and sends a PLOAM message of physical layer operation management and maintenance (PLOAM) that the ONU enters the sleep state to an Optical Line Terminal (OLT).
2. The method of claim 1, wherein the listening states comprise a doze state and a deep listening state, and wherein the sleep states comprise a sleep subconscious state and a deep sleep state; the method further comprises the following steps:
if no local wake-up or OLT wake-up exists, the doze state and the deep monitoring state are switched between the doze state and the deep monitoring state according to set time; and the sleep subconscious state and the deep sleep state are switched between the sleep subconscious state and the deep sleep state according to set time.
3. The method of claim 2, wherein when the ONU is in the listening state, if there is no traffic in a downstream direction, the ONU generates a downstream sleep signal, and directly switches from the listening state to the sleep state according to the downstream sleep signal, comprising:
when the ONU is in a doze state, if no traffic flow exists in a downlink direction within a set doze time, the ONU generates a downlink sleep signal, directly switches from the doze state to a sleep subconscious state according to the downlink sleep signal, and sends a PLOAM message that the ONU enters the sleep state to the OLT.
4. The method of claim 2, wherein when the ONU is in the listening state, if there is no traffic in a downstream direction, the ONU generates a downstream sleep signal, and directly switches from the listening state to the sleep state according to the downstream sleep signal, comprising:
when the ONU is in a deep monitoring state, if no service flow exists in the downlink direction, the ONU generates a downlink sleep signal, after the set time of the deep monitoring state, the ONU switches from the deep monitoring state to a dozing state according to the downlink sleep signal, then switches from the dozing state to a sleep subconscious state, and sends a PLOAM message that the ONU has entered the sleep state to the OLT.
5. The method of claim 1, further comprising: when the ONU is in the monitoring state, if no service flow exists in the downlink direction, the ONU can be firstly awakened through local or OLT and switched from the monitoring state to the activation state, and if the set activation holding time is up, the ONU is switched from the activation state to the free state and then switched from the free state to the sleep state.
6. The method of claim 2, further comprising: the OLT sets the doze time, the deep monitoring time and the activation holding time.
7. The ONU state switching device is characterized by comprising a flow acquisition module, a signal driving module and a state machine; wherein,
the traffic collection module is used for collecting the traffic in the downlink direction and sending the collected traffic information in the downlink direction to the signal driving module;
the signal driving module is used for generating a downlink sleep signal according to the service traffic information in the downlink direction acquired by the traffic acquisition module;
and the state machine is used for directly switching the monitoring state to the sleeping state according to the downlink sleeping signal of the signal driving module.
8. The apparatus of claim 7, wherein the listening states comprise a doze state and a deep listening state, and wherein the sleep states comprise a sleep subconscious state and a deep sleep state;
the state machine is specifically used for directly switching from a doze state to a sleep subconscious state according to the downlink sleep signal of the signal driving module.
9. The apparatus according to claim 7, characterized in that the state machine, in particular for,
when the OLT is in the doze state, if a downlink sleep signal generated by the signal driving module is received within a set doze time, the OLT is directly switched to the sleep subconscious state from the doze state according to the downlink sleep signal, and a PLOAM message which enters the sleep state is sent to the OLT.
10. The apparatus of claim 7, wherein the state machine is specifically configured to:
when the OLT is in the deep monitoring state, if a downlink sleep signal generated by the signal driving module is received, after the set time of the deep monitoring state is over, the deep monitoring state is switched to a doze state, then the doze state is switched to a sleep subconscious state, and PLOAM information which enters the sleep state is sent to the OLT.
11. The apparatus of claim 7, wherein the state machine is further configured to:
when the monitoring state is in, the monitoring state is switched to the active state through local awakening or OLT awakening, if the set active holding time is up, the active state is switched to the free state, and then the free state is switched to the sleep state.
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| CN201310002229.4A CN103916257A (en) | 2013-01-05 | 2013-01-05 | Optical network unit state switching method and device |
| PCT/CN2013/089296 WO2014106427A1 (en) | 2013-01-05 | 2013-12-12 | State switching method and device for optical network unit, and computer storage medium |
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| CN201310002229.4A CN103916257A (en) | 2013-01-05 | 2013-01-05 | Optical network unit state switching method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998508A (en) * | 2016-01-25 | 2017-08-01 | 深圳市中兴微电子技术有限公司 | ONU state transfer method and ONU |
| CN110446123A (en) * | 2019-08-19 | 2019-11-12 | 深圳市双翼科技股份有限公司 | The energy-saving control method and system of the port OLT in passive optical network |
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| CN106998508A (en) * | 2016-01-25 | 2017-08-01 | 深圳市中兴微电子技术有限公司 | ONU state transfer method and ONU |
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| CN110839185A (en) * | 2019-11-27 | 2020-02-25 | 通鼎互联信息股份有限公司 | Method and system for reducing energy consumption of passive optical network |
| CN114980278A (en) * | 2021-02-22 | 2022-08-30 | 维沃移动通信有限公司 | Working method and device of communication equipment and communication equipment |
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| WO2014106427A1 (en) | 2014-07-10 |
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