CN103731762B - The system and method for advanced power management for optical network terminal system on chip - Google Patents
The system and method for advanced power management for optical network terminal system on chip Download PDFInfo
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Abstract
Embodiments of the present invention are related to the system and method for the advanced power management for optical network terminal system on chip.System and method for the customer premises equipment, CPE (CPE) on passive optical network (PON) are provided.A kind of system includes packet handler at least with active mode and sleep pattern, and packet handler enters sleep pattern when being configured for when in active mode processing in the dataplane by PON from the received data packet flows of optical line terminal (OLT) and when not reception data grouping in the dataplane.A kind of system further includes the microcontroller separated from packet handler, packet handler is configured for receiving the operation and management (OAM) message transmitted in the control plane from OLT, and OMA message is handled by following operation: transmitting confirmation message or wake-up packet processor selectively to central local side in the case where not waking up the packet handler to receive data grouping in the dataplane.
Description
Cross reference to related applications
This application claims to by reference be fully incorporated in this, on October 15th, 2012 submit, it is entitled
The priority of No. 61/713,876 U.S. Provisional Application of " Advanced Power Management for ONT SOCs ".
Technical field
Present disclosure relates in general to network communication, and relates more specifically to the saving of the power in optical communication network.
Background technique
Optical line terminal (OLT) equipment is as ISP's endpoint operation in passive optical network (PON).OLT is taking
It is converted between the electric signal that the equipment of business supplier uses and the fiber-optic signal by PON transmission.OLT device is stayed to multiple users
Ground unit (CPE) continuously sends frame for handling and forwarding with stream.Also referred to as ONT Optical Network Terminal (ONT) or optical-fiber network
The CPE of unit (ONU) generally acts as the gateway between service provider networks and family or small business network.
The downstream frame transmitted on PON generally includes several predefined fields, and including data grouping (customer flow)
And various control structures, these control structures are used to manage the connection between OLT and CPE, and for coordinating in the net
Upstream transmission time division multiplexing (TDM) mechanism that cpe device on the other end of network uses.In the upstream direction, it is contemplated that PON CPE
Equipment transmits upstream frames when being requested by OLT.Upstream frames may include data grouping (customer flow) report.Making great efforts to be maintained in
PON synchronous protocol between OLT and ONU/ONT and when being connected to, though no user flow will either direction (downstream or on
Trip) on send when the inactive time during, OLT usually still to cpe device periodically transmit operation and manage (OAM) disappears
It ceases and the upstream bandwidth for cpe device is distributed.In response to OAM message, cpe device is configured for such as correlation standard
As transmission confirmation, state or report message.In general, it is contemplated that cpe device will be in no user flow or OAM
When OLT is sent, transmission is completed during each upstream bandwidth distribution that OLT is assigned to it, CPE will be provided such as related PON agreement
As in response to correspond to upstream bandwidth distribution come generation and transmission idle frame and/or message.
General Introduction of the above description as this field in relation to technology is presented and should not be construed as recognizing the information that it includes
In any information constitute the prior art relative to present patent application.
Summary of the invention
System and method for the customer premises equipment, CPE (CPE) on passive optical network (PON) are provided.A kind of system is at least
Packet handler with active mode and sleep pattern, packet handler are configured for processing when in active mode and exist
In data plane by PON from the received data packet flows of optical line terminal (OLT) and in the dataplane by PON towards
OLT transmission grouping, and enter sleep pattern when receiving data grouping not in the data plane.A kind of system further includes
The microcontroller separated with packet handler, microcontroller are configured for receiving the operation transmitted in the control plane from OLT
It is distributed with management (OAM) message and upstream bandwidth, and handles OMA message and upstream bandwidth point by following operation
Match: selectively transmitting confirmation or wake-up packet processing to central local side in the case where not waking up the packet handler
Device to receive data grouping in the dataplane.
As another example, in a kind of method communicated by passive optical network (PON) with optical line terminal (OLT),
Data grouping is received at PON customer premises equipment, CPE (CPE) equipment, and is connect in the packet processor processes of PON cpe device
The data grouping of receipts.Customer flow is received at the home network interface of CPE and user is sent towards OLT by PON interface
Flow.Sleep pattern be not placed in by packet handler from two interfaces to when data grouping at least threshold time period
In.Operation and management (OAM) message are received from OLT, and not from the feelings of packet handler described in the sleep mode wakeup
Under condition using micro controller module in response to OAM message according to related protocol to OLT transmit one or more confirmation, state or
Person's report message, micro controller module are the modules separated from packet handler.At PON cpe device receive data grouping or
Person is passed to the instruction of data grouping, and using microcontroller in response to the reception to data grouping or instruction and from sleep
Mode wakeup packet handler.
Detailed description of the invention
Fig. 1 is the block diagram of the CPE for being coupled to OLT by PON in the one embodiment for describe disclosure.
Fig. 2 is the block diagram for describing PON CPE, which is configured for management packet handler and one or more
The power mode of a peripheral equipment.
Fig. 3 is the timing diagram of the example communication of the microcontroller in the one embodiment for describe disclosure.
Fig. 4 is the PON CPE for entering sleep and low-power mode during being depicted in the data packet transfer inactive period
The timing diagram of component.
Fig. 5 is the schematic diagram of certain components of the PON CPE in the one embodiment for describe disclosure.
Fig. 6 is the block diagram for describing the exemplary home network including PON cpe device.
Fig. 7 is the flow chart of the method communicated by PON with OLT in the one embodiment for describe disclosure.
Specific embodiment
Fig. 1 is to be coupled to optical line terminal (OLT) (not by PON 108 in the one embodiment for describe disclosure
Show) PON customer premises equipment, CPE (CPE) unit, such as home gateway 102 block diagram.PON CPE 102 includes packet transaction
Device 104.Packet handler 104 is configured for active mode and sleep pattern.In active mode, packet handler
104 are configured for processing in the dataplane by stream of the PON 108 from the received data grouping 106 of OLT.In disclosure
One embodiment in, packet handler 104 is configured to PON 108 to OLT transmission outflow, namely upstream packet
110 to facilitate the two-way communication by PON 108 via CPE 102 between OLT and home network 112.Packet handler
104 are configured for entering sleep pattern when not receiving in the dataplane or transmitting data grouping 106,110.Open
In one embodiment of content, packet handler 104 substantially reduces power in sleep pattern compared in active mode and disappears
Consumption.
In one embodiment, CPE 102 further includes microcontroller 114, which divided from packet handler 104
From module or integrated circuit.During the inactive period, even if microcontroller 114 is configured for receiving OLT device 108
The OAM that still periodically (such as every 10ms) is transmitted in the control plane when without the data grouping for receiving or transmitting
Message 116, such as example in the compatible network of GPON for physical layer operations, manage and maintain (PLOAM) message.It is other in compatibility
In the PON network of standard, such as EPON, other appropriate OAM message, such as Multi-point Control Protocol (MPCP) message are received.By OLT
OAM message 116 is sent to be maintained in the synchronous and connection between PON CPE 102 and OLT 108.In one embodiment, exist
When non-wake-up packet processor 104, microcontroller 114 is configured for being passed through according to related protocol 116 in response to each reception
OAM downstream messages selectively transmit one or more confirmation, state or report to the OLT 108 of centrally located local side
Message 118 handles OAM message.In one embodiment, microcontroller 114 is additionally configured to receive in PON CPE 102
Via 120 wake-up packet processor 104 of wake-up signal when the instruction of incoming data grouping 106 or incoming data grouping 106.
In one embodiment of disclosure, microcontroller 114 is configured for significantly more than packet handler 104
Low power level operation.During the inactive period, microcontroller 114 be configured for disposition simultaneously operating and packet transaction
Device 104 maintains low-power mode.In one embodiment, by periodically received according to related protocol OAM message and
Selectively transmission response message maintains the active connection with passive optical network 108.Therefore microcontroller 114 is disposed as
Synchronous and auxiliary without the packet handler 104 from consumption higher power.By making packet handler 104 be able to enter sleep
Mode reduces the total power consumption of PON CPE 102.In addition, by using microcontroller 114 to maintain the work with OLT 108
Jump connection, the flow by providing 120 pairs of wake-up signal recovery data groupings 106 respond and allow actively to be connected to data
Comparatively speaking the conventional system to fail during the inactive period of grouping 106 improves the response speed of CPE 102.
In one embodiment of disclosure, CPE 102 is configured for meeting 1 watt of standby decree, such as the U.S.
Administrative decree 13221, the rules and regulations federal agent select have low standby energy consumption (example when buying certain networking products
Such as be not more than 1 watt) equipment.In another embodiment of disclosure, PON CPE 102 is configured for meeting 0.5 watt
Special standby decree, such as the committee, European Parliament regulations 1275/2008.Other areas, country, company and consumer similarly chase after
Seek such energy efficient technical requirements.
Other than being placed in packet handler in low-power or sleep pattern to save power, in disclosure
In one embodiment, CPE 102 is additionally configured to reduce the power consumption of other peripheral equipments, these peripheral equipments are configured
For facilitating communication of the data from service provider networks to home network device, such as interactive user device, these friendships
Mutual formula user equipment include in one embodiment of disclosure desktop computer, laptop computer, tablet devices,
Smart phone or TV.Fig. 2 is to describe the function for being configured for management packet handler and one or more peripheral equipment
The CPE 202 of rate mode, such as such as block diagram of home gateway system on chip.Implementation CPE 202 is system on chip, the system on chip
Including with active mode and the packet handler of sleep pattern 204, which is configured in active mode
Processing by passive optical network 208 from/go to OLT data grouping 206 stream, and do not receiving or transmit data divide
Enter sleep pattern when group.CPE 202 further includes being configured for facilitating data from OLT to one or more home network
Multiple peripheral equipments of the communication of equipment 210.In one embodiment of disclosure, CPE system on chip 202 includes: storage
Device, such as dynamic random access memory (DRAM) 212, packet handler 204 is when handling the stream of data grouping 206 and is somebody's turn to do
Memory interaction；The inner exchanging of data is routed between packet handler 204 and one or more home network device 210
Machine 214；And it is configured to act as the interface between PON CPE 202 and one or more home network device 210
One or more input-output apparatus 216.
CPE system on chip 202 also includes the microcontroller 218 isolated from packet handler 204, which is configured
For receiving OAM message 220 from OLT 208 during the transmission inactive period in data grouping 206, (such as GPON PLOAM disappears
Cease or meet other appropriate OAM messages of different PON agreements or standard).During such inactive period, microcontroller
Device 218 is transmitted back to one or more confirmation, state or report to OLT according to related protocol 208 in one embodiment and disappears
Breath 222 is to maintain the synchronous and connection between PON CPE 202 and OLT 208 and without the auxiliary from packet handler 204.
By doing so, packet handler 204 can enter low-power or be slept during the transmission inactive period of data grouping 206
Dormancy state.
In one embodiment of disclosure, during the transmission inactive period of data grouping 206, PON CPE
202 also one or more peripheral equipment in peripheral equipment 212,214,216 is placed in other than packet handler 204 it is low
In power or sleep pattern.Such as it senses in packet handler 204 or microcontroller 218 for the predetermined threshold period
When not yet receiving data grouping 206 from OLT 208, the entrance of order peripheral equipment 212,214,216 sleep state (such as instruction is deposited
Reservoir 212 enters self-refresh mode and command switch 214 and I/O equipment 216 enter sleep state).When in sleep mould
When in formula, microcontroller 218 be configured for disposition maintenance it is synchronous with OLT, thus receive data grouping 206 or be passed to count
According to grouping instruction when or when home network device 210 requests transmission outgoi8ng data grouping 226 it is real via wake-up signal 224
Now fast quick-recovery (such as in 10ms) communication.
Fig. 3 is the timing diagram of the example communication of the microcontroller in the one embodiment for describe disclosure.Although according with
The described in the text timing diagram up and down of the PLOAM message of GPON standard is closed, it is noted that the corresponding other appropriate PON standards of figure are similar
's.During the data packet transfer inactive period, network, such as OLT are to CPE transmission OAM message to maintain timing synchronization.This
The OAM message of sample in Fig. 3 by CPE ONT Optical Network Terminal from the received periodicity of PON (such as every 10ms) PLOAM message 302
It represents.In response to each OAM message in OAM message 302, microcontroller be configured for according to related protocol with one or
Multiple confirmations, state or report message 304 reply.Incoming data grouping 306 is received in home network or data grouping will
When being passed to such instruction quickly, microcontroller transmits wake-up signal 308 to packet handler, at the wake-up signal command grouping
Reason device exits sleep pattern and handles incoming data grouping 306 to be received.
Fig. 4 is the component for entering the PON CPE of sleep and low-power mode during the data packet transfer inactive period
Timing diagram.During first time period, data grouping 402 is received from OLT in PON CPE.404, data packet transfer stops
Only, and then soon, OLT only sends OAM message 406 to PON CPE.Once threshold time period 408 is since last time data point
Group transmission has terminated passage 404, then the determining exactly certain components of PON CPE enter the time of sleep pattern.In disclosure
One embodiment in, packet handler management enters sleep pattern.Such as when sleep threshold 408 expires, packet handler
Sleep commands 410,412 are sent to I/O equipment and internal switch respectively.Also internally memory transmission is used for packet handler
Into the order 414 of self-refresh mode.Once packet handler has been sent from for peripheral equipment to be placed in sleep/low-power mould
The order of formula, packet handler are converted to sleep pattern 418 from active mode 416.It is micro- in the other embodiments of disclosure
Controller sends the order for making certain peripheral equipment power down.
Fig. 5 is the schematic diagram of certain components of the PON CPE in the one embodiment for describe disclosure.PON CPE packet
Include the packet handler CPU 502 for being configured for handling from the received data packet flows of network.PON CPE further includes multiple sons
System peripheral 504, these system peripherals be configured for facilitating data from network to PON CPE it is associated in
The communication of the user equipment of portion's network.The microcontroller 506 isolated from host packet processor CPU 502 is configured for disposing
Carry out the OAM message of automatic network (such as optical line terminal) and without from host packet processor CPU 502 or any other logical
With the auxiliary of access memory, such as DRAM.Microcontroller 506 in one embodiment of disclosure in response to one or
The memory 508,510 of multiple close-coupleds, these memories include the instruction sum number for disposing the OAM message for carrying out automatic network
According to.In one embodiment of disclosure, instructing the memory 508 of close-coupled includes for being existed by microcontroller 506
The instruction set utilized when setting OAM message and wake-up packet processor CPU 502.The memory 510 of data close-coupled includes
Data for being used by microcontroller 506 when executing those functions.In one embodiment of disclosure, initializing
During process, memory 508 of the packet handler CPU 502 using director data filling instruction close-coupled, the application refers to
Data are enabled to support the use of the software/firmware of 506 pairs of microcontroller updates.In one embodiment of disclosure, close coupling
The memory 508,510 of conjunction is fast on-chip memory, these fast on-chip memories bypass and the associated height of microcontroller 506
Speed caches and provides safeguard horizontal low delay.Therefore, the offer of memory 508,510 of such close-coupled is exclusively used in micro-
The low latency memory of controller 506 accesses, this is avoided unpredictability present in some cache memories.
In one embodiment of disclosure, the CPE of Fig. 5 is manufactured to system on chip.System on chip includes substrate,
Middle packet handler CPU 502 is set on substrate.Microcontroller 506 is also connected to substrate and via lining as separation module
Bottom is electrically connected to packet handler CPU 502.System on chip further includes one or more additional peripheral made on substrate
Equipment, one or more additional peripheral devices are configured for facilitating communication of the data from network to user equipment.?
In one embodiment of disclosure, those peripheral equipments include memory, input-output apparatus and internal switch.
Fig. 6 is the block diagram for describing the exemplary home network including cpe device 602.Cpe device 602 includes packet handler
CPU 604 and the microcontroller 606 synchronous with external network for the disposition during the data packet transfer inactive period.PON
Cpe device 602 is interacted with certain memories, such as flash memory 608 and DDR memory 610.Cpe device 602 further include for via
One or more WiFi network 618, such as 802.11n network and USB hard disk 612, eSATA hard disk 614 and certain user are handed over
The I/O of one or more interaction in mutual equipment 616 (such as TV, computer, laptop computer, smart phone) connects
Mouthful.PON cpe device 602 further include for via the interface 624 and other networks simplified independently of Gigabit Media, such as
The interface of local area network 620, wide area network 622 and mediator network interaction.
In one embodiment of disclosure, the microcontroller 606 of PON cpe device 602 is configured for being grouped
Packet handler CPU 604 and certain peripheral equipments are placed in sleep or standby mode during handling the inactive period.?
When packet handler CPU 604 is in sleep state, microcontroller 606 disposes OAM message and non-wake-up packet processor CPU
604.Other than packet handler CPU 604 is placed in sleep state, an implementation of the microcontroller 606 in disclosure
In example, also the I/O interface for being used to interact with the external component of home network is placed in low power state, such as is used for and USB
It the USB interface of the interaction of external hard disc 612, the eSATA interface for being interacted with eSATA external hard disc 614 and is used for and WiFi
The I/O interface of network 618 and the interaction of the user equipment 616 of connection.
In one embodiment of disclosure, microcontroller 606 is configured to act as being applied not only to packet transaction CPU
604 and for system the other peripheral hardwares that can receive OAM message agency.Low-power mode is in multiple peripheral equipments
When middle and when receiving the OAM message of request and the associated confirmation of certain peripherals, microcontroller 606 is configured for leading to
It crosses and transmits confirmation for certain peripherals serving as agency for certain peripherals and do not waken up from low-power mode specific
Peripheral equipment.Such as (such as flash memory 608 or DDR are deposited the memory guided into low-power or self-refresh mode in reception
Reservoir 610) OAM message when microcontroller send confirmation signal and do not wake up it from the low-power mode of memory 608,610
, wherein formatting confirmation message to be revealed as from interested peripheral hardware.
Fig. 7 is the flow chart of the method communicated with OLT in the one embodiment for describe disclosure.702, in PON
Cpe device receives data grouping.704, in the received data grouping of the packet processor processes of gateway.706 right
Packet handler is placed in sleep pattern when the grouping of at least threshold time period not received data.708, set in PON CPE
It is standby to receive OAM message from OLT, and 710, it is passed in response to OAM message to OLT using micro controller module according to related protocol
One or more defeated confirmation, state or report message and not from sleep mode wakeup packet handler, the microcontroller mould
Block is the module separated from packet handler.712, data grouping or incoming data grouping are received in PON cpe device
Instruction, and 714, using microcontroller in response to receiving data grouping or instruction from sleep mode wakeup packet transaction
Device.
The application is illustrated the present invention using example.Patentable scope of the invention includes other examples.Such as in public affairs
It opens in one embodiment of content, PON CPE is configured for docking with plain old telephone service (POTS).In such reality
Apply in example, PON CPE serves as the interface with POTS network --- i.e. telephone plant is connected to PON CPE, and wherein PON CPE is served as
Public switched telephone network (PSTN) gateway or VoIP (ip voice) gateway.Phone traffic is converted into IP and used by the PSTN gateway
In passing through data network transmission.In such embodiments, it is contemplated that microcontroller is arranged at grouping during the period of no transmission
Manage device and the wake-up packet processor in " off-hook " instruction from telephone plant.
Claims (25)
1. a kind of customer premises equipment, CPE in passive optical network, the customer premises equipment, CPE include:
At least with the packet handler of active mode and sleep pattern, the packet handler, which is configured for working as, is in active
Processing is in the dataplane by the passive optical network from the received data packet flows of optical line terminal and in number when mode
It is grouped according to being transmitted by the passive optical network towards the optical line terminal in plane, and ought be not in the data plane
Enter the sleep pattern when receiving data grouping；
Multiple peripheral equipments are configured for facilitating communication of the data from the optical line terminal to user equipment, and
The microcontroller separated with the packet handler, the microcontroller are configured to act as certain peripherals
Agency, so as to when the multiple peripheral equipment is in low-power mode from optical line terminal reception transmit in the control plane
Operation and management message, and by it is following operation come handle it is described operation and management message, operation and management message request
With the associated confirmation of the certain peripherals:
The particular peripheral is being waken up not from packet handler described in the sleep mode wakeup and not from the low-power mode
The confirmation message for being directed to the certain peripherals is selectively transmitted in the case where equipment to central local side, and
Received at the customer premises equipment, CPE instruction of data grouping or incoming data grouping and using the microcontroller with
In response to the reception of the data grouping or the instruction from packet handler described in the sleep mode wakeup, with
Data grouping is received in the data plane.
2. the customer premises equipment, CPE according to claim 1 in passive optical network, wherein the microcontroller is configured
Described in periodically receiving during the period for not receiving data grouping from central office termination from the central local side
Operation and management message.
3. the customer premises equipment, CPE according to claim 2 in passive optical network, wherein being received from the central office end
The operation and management message be GPON physical layer operations and maintain PLOAM message.
4. the customer premises equipment, CPE according to claim 2 in passive optical network, wherein being received from the central office end
The operation and management message be EPON Multi-point Control Protocol MPCP message.
5. the customer premises equipment, CPE according to claim 2 in passive optical network, wherein the microcontroller is configured
For using the operation and management message and one or more confirmation, state or report message with according to related protocol come
Maintain the synchronous and connection between the customer premises equipment, CPE and the optical line terminal.
6. the customer premises equipment, CPE according to claim 1 in passive optical network, wherein the packet handler is matched
It sets for ordering the multiple peripheral equipment to enter low-power mode.
7. the customer premises equipment, CPE according to claim 1 in passive optical network, wherein the microcontroller is configured
For ordering the multiple peripheral equipment to enter low-power mode.
8. the customer premises equipment, CPE according to claim 1 in passive optical network, wherein the microcontroller is to one
Or the memory of multiple close-coupleds is responded, the memory of one or more of close-coupleds includes for disposing
The instruction and data of operation and management message from the optical line terminal.
9. the customer premises equipment, CPE according to claim 1 in passive optical network, wherein the microcontroller is to instruction
Collect the memory of close-coupled and the memory of data close-coupled responded, wherein described instruction collection close-coupled is deposited
Reservoir is configured for receiving from the packet handler using director data, wherein the microcontroller during initialization procedure
Device is configured for instructing number using the application during transmitting the confirmation message and waking up the packet handler
According to.
10. the customer premises equipment, CPE according to claim 1 in passive optical network further includes being coupled at the grouping
The peripheral equipment of device is managed, wherein when the peripheral equipment is in low-power mode and is set when receiving request with the periphery
When the operation and management message of standby associated confirmation, the microcontroller is configured as not waking up from the low-power mode
The confirmation is sent in the case where the peripheral equipment.
11. the customer premises equipment, CPE according to claim 1 in passive optical network, wherein the microcontroller is to first
Memory and second memory make a response, wherein the first memory is configured as during initialization procedure from described point
Group processor, which receives, applies director data, and wherein the microcontroller is configured as sending the confirmation message and wake-up
Director data is applied using described during the packet handler.
12. a kind of method communicated by passive optical network with optical line terminal, which comprises
Data grouping is received at passive optical network user premises equipment；
The received data grouping is handled at the packet handler of the passive optical network user premises equipment；
The packet handler is placed in sleep pattern when at least threshold time period does not receive data grouping；
It will be configured for facilitating data and pass through the more of the communication of the passive optical network to user equipment from ISP
A peripheral equipment is placed in low-power mode；
Operation and management message, the operation are received from the optical line terminal at the passive optical network user premises equipment
It include the specific operation and management message of the confirmation for the certain peripherals sought in the peripheral equipment with management message；
In the case where not from packet handler described in the sleep mode wakeup using microcontroller in response to it is described operation and
Management message transmits one or more confirmation, state or report message, institute to the optical line terminal according to related protocol
Microcontroller is stated to separate with the packet handler；
It is transmitted using the microcontroller to institute in the case where not waking up the certain peripherals from the low-power mode
It states specific operation and to the specific operation and manages the described true of message in transmission with the confirmation of message, the microcontroller is managed
The agency of the certain peripherals is served as during recognizing；
The instruction of data grouping or incoming data grouping is received at the passive optical network user premises equipment；And
Using the microcontroller in response to the reception to the data grouping or instruction and from the sleep pattern
Wake up the packet handler.
13. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
Additional operations and management message are periodically received during the period for not receiving data grouping, and according to the phase
Close requirement transmission additional one or more confirmation, state or report message of agreement.
14. the method according to claim 12 communicated by passive optical network with optical line terminal, wherein the transmission
Confirmation message include at the microcontroller processing using physical layer operations and maintain PLOAM form of message GPON operation and
Manage message.
15. the method according to claim 12 communicated by passive optical network with optical line terminal, wherein the transmission
Confirmation message includes the EPON operation and management that processing uses Multi-point Control Protocol MPCP form of message at the microcontroller
Message.
16. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
It is maintained according to the related protocol using the operation and management message and the confirmation, state or report message
Synchronous and connection between the passive optical network user premises equipment and the optical line terminal.
17. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
Using the packet handler to order multiple peripheral equipments before the packet handler enters the sleep pattern
Into the low-power mode.
18. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
Using the microcontroller to order the multiple periphery to set before the packet handler enters the sleep pattern
It is standby to enter the low-power mode.
19. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
The instruction and data of the memory from one or more close-coupled is accessed, using the microcontroller to be used for
One or more confirmation, state or report message is transmitted to the optical line terminal according to the related protocol.
20. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
Using the microcontroller so as in no user in the case where not from packet handler described in the sleep mode wakeup
According to the relevant passive optical-fiber network agreement provisions in response to corresponding upstream belt when flow will be sent to the optical line terminal
Width distribution comes generation and transmission idle frame and/or message.
21. the method according to claim 19 communicated by passive optical network with optical line terminal, further includes:
The microcontroller is initialized, wherein initializing the microcontroller includes with the instruction number from the packet handler
According to come one of the memory of filling one or more of close-coupleds.
22. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
In response to from the received corresponding upstream bandwidth distribution of the optical line terminal, according to the relevant passive optical-fiber network agreement come
Idle frame and/or message are transmitted to the optical line terminal.
23. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
The peripheral equipment that will be coupled into the packet handler is placed in low-power mode；
Receive the operation for seeking the confirmation from the peripheral equipment and management message；And
The confirmation is sent from the microcontroller in the case where not waking up the peripheral equipment from the low-power mode.
24. the method according to claim 12 communicated by passive optical network with optical line terminal, further includes:
The director data of applying from memory is accessed using the microcontroller, the microcontroller is to the optical link
Terminal uses described using director data during sending one or more of confirmations, state or report message.
25. the method according to claim 24 communicated by passive optical network with optical line terminal, further includes:
The microcontroller is initialized, wherein initializing the microcontroller includes with the instruction number from the packet handler
According to the filling memory.
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| US7818389B1 (en) * | 2006-12-01 | 2010-10-19 | Marvell International Ltd. | Packet buffer apparatus and method |
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