CN101820349B - Power saving in IEEE 802-style networks - Google Patents
Power saving in IEEE 802-style networks Download PDFInfo
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- CN101820349B CN101820349B CN2010101492024A CN201010149202A CN101820349B CN 101820349 B CN101820349 B CN 101820349B CN 2010101492024 A CN2010101492024 A CN 2010101492024A CN 201010149202 A CN201010149202 A CN 201010149202A CN 101820349 B CN101820349 B CN 101820349B
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Abstract
A system and method for power saving in IEEE 802-style and ITU-T G.984-style networks overcomes the limitations of conventional techniques using information from user and network devices for initiating power savings by the user or network device, enabling power savings on links such as optical networks. This innovative technique provides a system and method for communications between user and network devices, facilitating either the user or network device initiating a sleep mode for the user device. The implementation of a sleep mode in a device allows powering down of the device's transmitter and receiver for a specified length of time, during which the transmitter and receiver (also referred to as the physical interface of the device) consume diminished power.
Description
Technical field
Present embodiment relates generally to communication network field, more specifically, relates to the G.984 system and method saved of the electric power in type network of IEEE 802 types and ITU-T.
Background technology
The application requires the rights and interests of temporary patent application (PPA) sequence number 61/147,103 of submitting on January 25th, 2009, and this sentences the mode of quoting as proof and is incorporated to its content.
G.984, the background information of technology and term can find in standard at IEEE802 and ITU-T.The expansion of the rising of energy cost, data center's scale and the density growth of electronic equipment are some reasons that enterprise becomes more and more responsive for energy consumption impact in operation.Especially, many companies pay close attention to the electricity usage of its information technology (IT) system to determine whether energy cost reduces.The energy consumption that an aspect of electricity usage is communication equipment.
IEEE 802 type networks (it generally includes G.984 type network of ITU-T in the linguistic context of the literature) are general selections for enterprise and junior one mile access communications.An example of IEEE 802 type networks is ethernet standards of implementing with in such as 100Base-T, 10GBASE-R and the such standard of Ethernet passive optical network (EPON).The importance that in IEEE 802 type networks, electric power is saved can be found out from IEEE 802.3 working groups, this working group has set up energy-saving Ethernet (EEE) task groups that formal name is called 802.3az recently, with the solution of definition for reducing the average power consumption of copper Ethernet.Multiple conventional solution has been proposed.
The U.S. Patent application of Linghsiao Wang and James Yik No. 60/172986 (being entitled as " Power Saving For Ethernet MAC Control Logic ") has been instructed a kind of by stopping and opening the method that clock signal between MAC control logic module and Frame Handler module is controlled the electric power of inside communication equipment.
The mixed method that the people's such as Wael William Diab U.S. Patent application No. 20090204828 (being entitled as " Hybrid Technique in Energy Efficient Ethernet Physical Layer Devices ") has been instructed a kind of combination and managed a plurality of low power modes.This mixed method is used the combination of the idle technology of low electric power and physical interface technology, and it can be selectively activated at inside communication equipment.In the physical interface technology, link utilization can use High Data Rate when the transfer of data demand is higher, and can use low data rate when the transfer of data demand is low.In the idle technology of low electric power, the transmitter side of link can be designed to enter low electric power idle pulley when there is no transfer of data, and the energy in this pattern on most of physical interface and link is closed (entering sleep).Send physical interface and not exclusively close, physical interface sends refresh signal so that receiver is remained link synchronization and received from prenoticing of waking up low power mode but send.
The people's such as David J.Koenen U.S. Patent application No. 20080304519 (being entitled as " Method for Ethernet Power Savings on Link Aggregated Groups ") has been provided by the ability of the electric power that is consumed by the ethernet link group while providing reduction in being organized in link aggregation group.To in group during the low bandwidth utilance by a plurality of links, it never will consult the conversion of must link arriving lower power state when server or inductive switching.When bandwidth demand increases, algorithm will be rebuild link rapidly, and when needed by a plurality of link assignment Ethernet services.
The U.S. Patent application of Robert Hays No. 20090119524 (being entitled as " Energy Efficient Ethernet Using Active/Idle Toggling ") thus having instructed ethernet controller can be configured to operation in activating power state sends or receives packet with maximum available link speed.In case packet is sent out or received, this ethernet controller can be configured in idle power state operation to reduce energy consumption.Hays has defined a kind of " idle power state " as power state, and it is enough to remain open link together with link partner, but is not enough to send or receive data.In other words, be somebody's turn to do between " idle power state " ethernet controller and link partner and remain the ethernet communication connection.
In the linguistic context of the literature, user communication device, or be called more simply subscriber equipment and refer to the equipment that is usually located at user place, and to the user, be provided for carrying out to relevant communication network (being called more simply network) interface of sending and receiving.In the linguistic context of the literature, network communication equipment, or being called more simply the equipment that the network equipment refers to the center that usually is placed in a plurality of users, it is operably connected to subscriber equipment by communication network, and is provided for carrying out to relevant communication network the interface of sending and receiving.The network equipment can provide the communication between the communication between subscriber equipment on network and/or subscriber equipment and another network.
The conventional solution that electric power in Ethernet is saved concentrates on the power consumption of physics (PHY) interface that changes link data rates or optionally reduce subscriber equipment.Although use lower data transfer rate to send data, with respect to using higher data transfer rate, can save electric power, the transmission of remaining lower data transfer rate can continue to use electric power.When via analog communication (for example copper Ethernet), sending, transmitter can send with lower level of power to reduce electric power, but transmitter continues to use electric power.By the electric power that the transmitter that monitors idle transmission time and closing device is controlled in subscriber equipment, can save electric power for transmitter, yet receiver continues to use electric power.Low electric power and the idle condition of multiple routine can be saved electric power for transmitter and receiver, but in subscriber equipment, still need power consumption from the network equipment, to receive " waking up " signal to monitor communication channel.
Therefore the system and method that needs a kind of electric power for network to save, wherein transmission medium does not impel receiver to detect the transmitter signal that transmitter exits low power state, this network comprises IEEE 802 types and ITU-G.984 type network, but is not limited to Ethernet.Further, the information of saving for start electric power by subscriber equipment from user and the network equipment is used in expectation.
Summary of the invention
A kind of for IEEE 802 types and ITU-T G.984 the system and method saved of type network electric power by use come from subscriber equipment and the network equipment for by subscriber equipment or the network equipment, starting the information of electric power saving, overcome the limitation of routine techniques, made it possible to realize save such as the electric power on the link of optical-fiber network.This innovative technology is provided for the system and method that communicates between user and the network equipment, and impelling user or the network equipment is that subscriber equipment starts sleep pattern.In equipment, the enforcement of sleep pattern allows the transmitter and receiver outage of equipment to reach specific time span, and transmitter and receiver during this time span (being also referred to as the physical interface of equipment) is power consumption not.
The accompanying drawing explanation
Here only by way of example and with reference to accompanying drawing execution mode is described, in accompanying drawing:
Fig. 1 is the sketch plan of general purpose I EEE 802 type networks.
Fig. 2 is the sketch plan of EPON.
Fig. 3 is the flow chart of the common sleep control message stream in the IEEE802 type network.
Fig. 4 is the table that the execution mode of the field of SLEEP_REQ message and byte (octet) is shown.
Fig. 5 is the table that the execution mode of the field of CHANGE_SLEEP_MODE message and byte is shown.
Fig. 6 is the table that the execution mode of the field of SLEEP message and byte is shown.
Fig. 7 is the figure of the system of saving for electric power in communication network.
Embodiment
With reference to accompanying drawing and subsidiary description, can understand better principle and the operation according to this system and method for present embodiment.An execution mode for the system and method in IEEE 802 type network electric power savings comes from the information of saving for start electric power by user or the network equipment of user and the network equipment by use, overcome the defect of routine techniques, make it possible to realize save such as the electric power on the link of optical-fiber network.This innovative technology is provided for the system and method that communicates between user and the network equipment, and impelling user or the network equipment is that subscriber equipment starts sleep pattern.In equipment, the enforcement of sleep pattern allows the transmitter and receiver outage of equipment to reach specific time span, and transmitter and receiver during this time span (being also referred to as physics (PHY) interface of equipment) is power consumption not.In fact notice, structure according to physical interface, can have the assembly of the physical interface with scattered (stray) and/or remaining power consumption, so point-device measurement of the power consumption of physical interface can show minimum power consumption during given measuring period.This minimum power consumption is not considered relevant to linguistic context of the present invention usually.
In the linguistic context of the literature, term " transmitter " refers to and can make equipment to relevant communication network, send the apparatus assembly of data.Similarly, term " receiver " refers to and can make equipment from relevant communication network, receive the apparatus assembly of data.In the linguistic context of the literature, unless special definition, data are generally quoted with all information of being communicated by letter of opposing.
The electric power that this execution mode can be used in IEEE 802 type networks (including but not limited to copper and optical-fiber network) is saved.Usually, the network equipment and a plurality of communications of user equipment in IEEE 802 type networks.Because one or more subscriber equipment can enter sleep pattern, and the network equipment usually is busy with subscriber equipment, other network service and looks after other miscellaneous affair, makes the network equipment not have free time to enter sleep pattern.Although this exercisable description is normal mode of operation, the enforcement of the method is not limited only to subscriber equipment, and it is possible for the network equipment, entering sleep pattern.Network only comprises that the non-limiting example of two equipment (single network equipment and unique user equipment) is for the network equipment, to enter the example of the useful enforcement of sleep pattern.When any in two equipment all do not have data to send to another equipment, two equipment can enter sleep pattern.
For clear, specific implementations will utilize Ethernet passive optical network (EPON) assembly to describe in this description.Under these circumstances, subscriber equipment is implemented as optical network unit (ONU), and the network equipment is implemented as optical line terminal (OLT), and communication network is the EPON network.
With reference now to accompanying drawing,, Fig. 1 is the sketch plan of IEEE 802 type networks.The network equipment 100 is connected to one or more subscriber equipment (102A, 102B, 102N) and provides communication between the subscriber equipment on network.Alternatively, the network equipment 100 is connected to one or more equipment (for example the network switch 104), between subscriber equipment and other network 106, to provide communication.
With reference to figure 2, the sketch plan of EPON network shows an illustrative embodiments of IEEE 802 type networks.The network equipment, OLT 200, via passive optical splitters 208, be connected to one or more subscriber equipment (ONU-1 202A, ONU-2 202B and ONU-N 202N), and provide communication between the subscriber equipment on network.Alternatively, OLT 200 is connected to one or more equipment (for example the network switch 104), between subscriber equipment and other network 106, to provide communication.
With reference to figure 3, it is the flow chart of common sleep control message stream in IEEE 802 type networks, and the time 300 is illustrated as along the descending relative scale of the page.This sleep control message stream impels the transmitter and receiver outage of equipment to reach length preset time, and transmitter and receiver power consumption not during this length causes the electric power of the equipment of having saved preset time thus.In the first situation, when the network equipment 100 sent to subscriber equipment 102A without any data, sleep control message stream started.The network equipment 100 sends request to subscriber equipment 102A the message (being known as SLEEP_REQ302) that subscriber equipment is transformed into the circulation sleep pattern.If subscriber equipment 102A will send without any data, subscriber equipment enters the request (being known as CHANGE_SLEEP_MODE 304A) of sleep by transmission, carrys out response to network equipment 100 and is transformed into circulation sleep pattern 303A.In the second situation, if subscriber equipment 102A does not have data to send, the control message stream of sleeping can be usingd subscriber equipment and be sent CHANGE_SLEEP_MODE 304A as beginning to the network equipment 100.
In above two kinds of situations, if the network equipment 100 will send to subscriber equipment 102A without any data, the network equipment sends and makes subscriber equipment enter the instruction (being known as SLEEP 306A) that sleep reaches definite length of one's sleep to subscriber equipment.The network equipment 100 also suspends survival to be processed (keepalive process) and communicates by letter 308 to other of subscriber equipment 102A.When subscriber equipment 102A received SLEEP instruction 306A, subscriber equipment was transformed into sleep pattern 310A, and by suitable assembly outage, this assembly generally includes but is not limited to send logic and receiver.When arrived the length of one's sleep of determining for sleep, subscriber equipment 102A was transformed into circulation sleep pattern 303B, and to suitable assembly power supply, this assembly generally includes but is not limited to transmitter and receiver.Subscriber equipment is prepared to receive from the network equipment allowance message (being known as GATE) that allows subscriber equipment to send now.The network equipment 100 also knows when arrive the length of one's sleep of determining for subscriber equipment 102A sleep, and sends transmission opportunity message to subscriber equipment, and it is illustrated as GATE order 312A(and permits message).
If subscriber equipment 102A does not have data to send to the network equipment 100, subscriber equipment sends and informs that subscriber equipment does not have data will send also thereby can get back to the REPORT 314A of sleep.When the network equipment 100 will send to subscriber equipment 102A without any data, the network equipment sent SLEEP 306B to subscriber equipment.When subscriber equipment 102A received SLEEP instruction 306A, as mentioned above, subscriber equipment was transformed into sleep pattern 310B.When for sleep preset time, length arrived the time, subscriber equipment 102A again is transformed into circulation sleep pattern 303C and the network equipment 100 and sends GATE 312B, as mentioned above.
If subscriber equipment 102A has data to send to the network equipment 100, subscriber equipment sends and informs that subscriber equipment 102A wants the REPORT314B that sends.The network equipment 100 sends GATE 312C and activates survival and process and communicate by letter 316 to other of subscriber equipment to subscriber equipment 102A.Subscriber equipment 102A sends its message of changing from the circulation sleep pattern to general mode, and it is illustrated as CHANGE_SLEEP_MODE304B.Subscriber equipment 102A is transformed into general mode 318 from the circulation sleep pattern.Communication now is normal to recover.If again do not have data to send, the control message that can repeat to sleep stream.
In the situation that the network equipment has data to send to subscriber equipment from subscriber equipment 102A reception CHANGE_SLEEP_MODE304 and the network equipment, the network equipment sends data as general data message to subscriber equipment.When subscriber equipment does not receive SLEEP instruction 306, substitute and receive data, subscriber equipment is transformed into normal mode of operation from the circulation sleep pattern.
In one embodiment, can be by the system operator manual configuration on the network equipment or subscriber equipment the definite length of one's sleep for sleep.In another embodiment, determine the length of one's sleep can by network device computes and as the sleep message part be sent to subscriber equipment.Time, by in synchronous execution mode, determines that be following absolute time length of one's sleep in subscriber equipment and the network equipment.In nonrestrictive example, if the current time is very first time stamp (F424 radix 16), definitely determine that can be the second timestamp (605234 radix 16=will be 100 milliseconds at the future time stamp) length of one's sleep.In another embodiment, determine that can be relative time the length of one's sleep.In nonrestrictive example, determine that relatively can be numerical value (BA2E8BA radix 16=100 millisecond) length of one's sleep.Based on this, describe and specific application, determine that other execution mode of the length of one's sleep will become clear to those skilled in the art.
In optional execution mode, the network equipment 100 monitors communications traffic load, and subscriber equipment 102A is identified as light load, and the network equipment sends SLEEP_REQ 302 to subscriber equipment.In this embodiment, although subscriber equipment has data to send, subscriber equipment is accepted SLEEP_REQ, is transformed into the circulation sleep pattern and sends CHANGE_SLEEP_MODE to the network equipment.Data are cushioned in subscriber equipment until subscriber equipment is transformed into normal mode of operation, and subsequent data is sent out, and the load that is accompanied by on communication channel is relatively high.
In optional execution mode, the network equipment can initially send SLEEP to the unique user equipment of having asked CHANGE_SLEEP_MODE.SLEEP message subsequently can be broadcast to all subscriber equipmenies on network, and all are in the listen for user device translates of circulation sleep pattern to sleep pattern.
In optional execution mode, subscriber equipment sends CHANGE_SLEEP_MODE 304C immediately after receiving GATE 312B.In another optional execution mode, subscriber equipment sends user data immediately after receiving GATE 312B, to the network equipment, inform that impliedly subscriber equipment has been transformed into general mode thus.
For the special algorithm that determines to send SLEEP not in the linguistic context of this description.An execution mode is based on the network equipment and after subscriber equipment receives SLEEP_REQ, is just sending the decision of SLEEP.
In some applications, preferably can change translative mode, send message, and the order of suspending and activating.In a nonrestrictive example, the network equipment 100 suspends the survival processing and communicates by letter 308 with other, then to subscriber equipment 102A, sends SLEEP instruction 306.Based on this description and application-specific, it is clear that other execution mode will become for those skilled in the art.
For the execution mode of said method, the message that sends between subscriber equipment and the network equipment need to comprise sufficient information, so that the required control of sleep control message stream (electric power is saved and controlled) to be provided.In IEEE 802 type networks, media interviews are controlled (MAC) layer standard and are not sufficient to provide this control.Therefore, need to provide the mechanism that has for the abundant control of sleep control message stream.
For the network control layer (for example, 802.1MAC client layer or 802.3MAC key-course) on the MAC layer of message format and state information use a to(for) execution mode of the mechanism of the control of sleep control message stream is provided.Network control layer comprises for synchronous mechanism settling time, and should can be used to control purpose by shared concept of time.Existing Time Synchronization Mechanism is expanded, and it is determining not receive data in the length of one's sleep with the notice receiving equipment to make transmitting apparatus can send special message.
In Ethernet passive optical network (EPON), sleep control message stream can be implemented in the network control layer on the MAC layer, and this MAC layer is multiplexing for controlling, and is called as multiple spot MAC control [MPCP] layer.Existing MPCP standard comprises synchronous for settling time and uses and share concept of time (having the guard zone) to activate the mechanism of multiplexing transmission.This existing MPCP Time Synchronization Mechanism is expanded, and it is determining not receive data in the length of one's sleep with the notice receiving equipment to make transmitting apparatus can send special message.In addition, the MPCP layer is modified, thereby the survival function is suspended when subscriber equipment is in sleep pattern.Notice, control synchronous exchange and use IEEE 802 agreements, for example with the GPON that uses 3 notices, compare, it only uses a notice.In EPON, above-mentioned subscriber equipment and the network equipment are implemented as respectively optical network unit (ONU) and optical line terminal (OLT).
With reference to figure 4, it illustrates the table of the execution mode of the field of SLEEP_REQ message and byte, and field (also is known as the form of MPCP data cell-MPCPDU) based on general MPCP frame.The 64 byte mac frames that all MPCPDU are comprised of following field:
The destination address field of destination-address (DA)-mac frame comprises frame and plans 48 bit addresses of the equipment be supplied to.
The source address field of source address (sa)-mac frame comprises 48 bit absolute addresses of the equipment that sends frame.
The length/type field of length/type-mac frame is 2 byte field that comprise hexadecimal value 88-08.This value is generally divided and is equipped with the sign mac frame.
Command code-opcode field is 2 byte field, the mac frame that its sign is special.
The OUI-OUI field is the configurable field of 3 byte.
Extended operation code-configurable.In the execution mode of this SLEEP_REQ, value 00-00
16Being used to indicate this frame is SLEEP_REQ message.
The information of filling/reservation-relevant special MPCP function of these fields carryings.Be not operated yard part of the payload of special field use and should be filled to be zero.
The CRC-32 value that the carrying of Frame Check Sequence (FCS)-FCS field is used by MAC is to verify the integrality of received frame.
With reference to figure 5, it illustrates the table of the execution mode of the field of CHANGE_SLEEP_MODE message and byte, and field is similar to those fields of describing into SLEEP_REQ.The extended operation code field value of being configured to 00-01
16, it is used to indicate this frame is CHANGE_SLEEP_MODE message.An extra field is designated: whether new model-1 byte field, its indicating equipment ask to change to general mode (by value 0 indication) or change to circulation sleep pattern (by value 1 indication) from general mode from the circulation sleep pattern.
With reference to figure 6, it illustrates the table of the execution mode of the field of SLEEP message and byte, and field is similar to those fields of describing into SLEEP_REQ.The extended operation code field value of being configured to 00-02
16, it is used to indicate this frame is SLEEP message.An extra field is designated: wakeup time-4 byte field, its indication is for definite length of one's sleep of sleep.In the EPON network, this value is preferably the EPON clock, the timestamp of time-based quantum (1 time quantum, or TQ was 16 nanoseconds).
As mentioned above, the execution mode be used to specific fields, length and the value of the required control of the control message stream of sleeping (electric power is saved and controlled) can change based on this application.Based on this description and application-specific, it is clear that other execution mode of controlling mechanism will become for those skilled in the art.
With reference now to accompanying drawing,, Fig. 7 is the figure for the system of communication network electric power saving.Subscriber equipment 702 comprises that this treatment system 706 comprises one or more processor 708 for the communication module 704 of network communication and the treatment system 706 that is operably connected to communication module 704.Processor 708 is configured to have be used to the sleep control module 710 of the control message stream of initiating to sleep and is arranged to the mode control module 712 that subscriber equipment is transformed into to the circulation sleep pattern when the control message stream of sleeping is initiated.Note, for clear, the connection between module is not shown in Figure 7.
The network equipment 700 is operably connected to subscriber equipment.The network equipment 700 comprises the communication module 730 and the treatment system 732 that is operably connected to communication module for network communication, and this treatment system 732 comprises one or more processor 734.Processor 734 is configured to have for determining that subscriber equipment is in the determination module 736 length of one's sleep of the length of one's sleep of sleep pattern, and wherein subscriber equipment 702 is not communicated by letter with the network equipment 700 with electric power basically.Processor 734 also is configured to have sleep decision module 736, and it is arranged to determines whether the network equipment 700 needs to send data and send data-message be used to impelling from the network equipment to subscriber equipment 702.If the network equipment 700 does not have data to send to subscriber equipment 702, the decision module of sleeping 736 starts to impel the survival that sends sleep message from the network equipment to subscriber equipment and impel network equipment time-out to be associated with subscriber equipment to process.
The subscriber equipment treatment system also is configured to have sleep determinant module 714, it is configured to when subscriber equipment 702 is in the circulation sleep pattern, at subscriber equipment, after the network equipment 700 receives data-message, impel subscriber equipment is transformed into to general mode; After perhaps at subscriber equipment, from the network equipment, receiving sleep message, impel subscriber equipment to be transformed into sleep pattern and reach the length of one's sleep.
In optional execution mode, subscriber equipment sleep control module 710 further is configured to impel 700 transmissions first from subscriber equipment 702 to the network equipment to change sleep pattern message.In another optional execution mode, network device processing system 732 further is configured to have network equipment sleep control module 738, for by impelling from the network equipment 700 to subscriber equipment 702 to send the sleep request messages control message stream of initiating to sleep.
According to application, the function of above-mentioned a plurality of modules can be combined or be separated and implement.Based on this description and application-specific, it is clear that other execution mode of module will become to those skilled in the art.
Should be appreciated that foregoing description only is intended to as example, and in the scope of the invention as defined by the appended claims, can make many other execution modes.
Claims (11)
1. method of saving electric power in communication network, the method comprises the following steps:
(a) between subscriber equipment and the network equipment, initiate sleep control message stream;
(b) described subscriber equipment is transformed into to the circulation sleep pattern;
(c) determine that described subscriber equipment is in the length of one's sleep in sleep pattern, wherein said subscriber equipment does not come to communicate with the described network equipment with electric power;
(d) if the described network equipment need to send data to described subscriber equipment:
From the described network equipment, send data-message; And
Described subscriber equipment is transformed into general mode after receiving described data-message; And
(e) if the described network equipment does not have data to send to described subscriber equipment:
From the described network equipment to described subscriber equipment, send sleep message;
The described network equipment suspends the survival that is associated with described subscriber equipment to be processed; And
After described subscriber equipment place received described sleep message, described subscriber equipment was transformed into sleep pattern and reaches the described length of one's sleep.
2. method according to claim 1, the method is further comprising the steps of:
(f) based on the described length of one's sleep, described subscriber equipment is transformed into to described circulation sleep pattern from described sleep pattern;
(g), based on the described length of one's sleep, from the described network equipment to described subscriber equipment, send first and permit message to check the operation of described subscriber equipment;
(h) after receiving described the first allowance message, described subscriber equipment sends the first report message to the described network equipment, to inform described subscriber equipment, has data to send;
(i) after receiving described the first report message, the described network equipment carries out following operation:
Activating the described survival that is associated with described subscriber equipment processes; And
From the described network equipment to subscriber equipment, send second and permit message; And
(g) after described subscriber equipment place received described the second allowance message, described subscriber equipment carried out following operation:
From described circulation sleep pattern, be transformed into general mode; And
To the described network equipment, send second and change sleep pattern message.
3. method according to claim 1, wherein change by from described subscriber equipment to the described network equipment, sending first the step that sleep pattern message starts described initiation sleep control message stream.
4. method according to claim 1, wherein start by from the described network equipment to described subscriber equipment, sending the sleep request message step that described initiation sleep control message flows.
5. method according to claim 4, wherein initiate the step of sleep control message stream based on communications traffic load.
6. method according to claim 1, wherein be manual configuration the determined length of one's sleep.
7. method according to claim 1, wherein send the described length of one's sleep from the described network equipment to described subscriber equipment.
8. method according to claim 1, be included in described sleep message the wherein said length of one's sleep.
9. method according to claim 1, wherein realize by the described sleep message of a plurality of subscriber equipmenies broadcast to comprising described subscriber equipment to the described forwarding step of the described sleep message of described subscriber equipment transmission.
10. method according to claim 1, wherein said subscriber equipment and the described network equipment communicate via the IEEE802 standard network.
11. method according to claim 1, wherein said subscriber equipment are the optical network unit ONU of Ethernet passive optical network EPON, and the wherein said network equipment is the optical line terminal OLT of described ethernet passive optical network EPON.
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| US14710309P | 2009-01-25 | 2009-01-25 | |
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2442496B1 (en) | 2009-06-08 | 2014-07-30 | Mitsubishi Electric Corporation | Passive optical network (pon) |
| JP4812884B2 (en) | 2010-04-13 | 2011-11-09 | 三菱電機株式会社 | COMMUNICATION SYSTEM, STATION-SIDE OPTICAL LINE TERMINATION DEVICE, USER-SIDE OPTICAL LINE TERMINATION DEVICE, CONTROL DEVICE, AND COMMUNICATION METHOD |
| CN102404188A (en) * | 2010-09-14 | 2012-04-04 | 中兴通讯股份有限公司 | Method and system capable of maintaining link in energy saving state of Ethernet passive optical network |
| CN102404047B (en) * | 2010-09-17 | 2015-09-16 | 中兴通讯股份有限公司 | The method and system of power-saving mechanism management are realized between ONU and OLT |
| JP2012114604A (en) * | 2010-11-24 | 2012-06-14 | Nec Access Technica Ltd | Communication device, communication method, and program |
| EP2615800B1 (en) | 2010-12-08 | 2016-03-30 | Mitsubishi Electric Corporation | Communications method for optical communications system, optical communications system, secondary station device, control device and program |
| JP2012156785A (en) * | 2011-01-26 | 2012-08-16 | Sumitomo Electric Ind Ltd | Residence side device, optical transceiver, communication system, and power supply method |
| JP5380689B2 (en) * | 2011-05-30 | 2014-01-08 | 株式会社日立製作所 | Optical line device, bandwidth control method, and optical network system |
| JP5772240B2 (en) | 2011-06-01 | 2015-09-02 | 株式会社リコー | Communication apparatus and communication method |
| EP2728808B1 (en) * | 2011-06-29 | 2019-07-31 | Mitsubishi Electric Corporation | Subscriber-side optical communication device, communication system, control device and power-saving control method |
| US20130089091A1 (en) * | 2011-10-07 | 2013-04-11 | Broadcom Corporation | Control of Energy Efficiency Above PMD Interface |
| US9113237B2 (en) | 2012-02-03 | 2015-08-18 | Broadcom Corporation | Systems and methods for ethernet passive optical network over coaxial (EPOC) power saving modes |
| US9503270B2 (en) | 2012-03-28 | 2016-11-22 | Nec Corporation | Communication device and power saving method thereof in data transmission system |
| CN103581450B (en) * | 2012-07-25 | 2018-03-23 | 中兴通讯股份有限公司 | Power-economizing method and device |
| JP5546662B2 (en) * | 2013-03-14 | 2014-07-09 | 三菱電機株式会社 | Slave station apparatus, communication method of optical communication system, optical communication system, and control apparatus |
| CN104185258A (en) * | 2013-05-20 | 2014-12-03 | 中兴通讯股份有限公司 | Communication terminal energy-saving control method, communication method, device and system thereof |
| CN104639338A (en) * | 2013-11-12 | 2015-05-20 | 中兴通讯股份有限公司 | Initializing method and device of photoelectric hybrid access equipment |
| CN104901763A (en) * | 2015-05-22 | 2015-09-09 | 国家电网公司 | Electric power optical network unit with display and implementation method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002152309A (en) * | 2000-11-15 | 2002-05-24 | Sharp Corp | Bluetooth apparatus |
| JP4612828B2 (en) * | 2004-10-29 | 2011-01-12 | キヤノン株式会社 | COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMPUTER PROGRAM |
| US8817817B2 (en) * | 2007-06-06 | 2014-08-26 | Hewlett-Packard Development Company, L.P. | Method for ethernet power savings on link aggregated groups |
| JP2009302752A (en) * | 2008-06-11 | 2009-12-24 | Mitsubishi Electric Corp | Subscriber terminating device and power supply control method |
| JP2010114830A (en) * | 2008-11-10 | 2010-05-20 | Sumitomo Electric Ind Ltd | Pon optical communication system, station-side apparatus, subscriber-side apparatus and power consumption control method |
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2010
- 2010-01-22 JP JP2010011661A patent/JP4903276B2/en active Active
- 2010-01-25 CN CN2010101492024A patent/CN101820349B/en active Active
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| JP2010213259A (en) | 2010-09-24 |
| JP4903276B2 (en) | 2012-03-28 |
| CN101820349A (en) | 2010-09-01 |
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