WO2010000200A1 - 节点、数据处理系统和数据处理方法 - Google Patents

节点、数据处理系统和数据处理方法 Download PDF

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Publication number
WO2010000200A1
WO2010000200A1 PCT/CN2009/072548 CN2009072548W WO2010000200A1 WO 2010000200 A1 WO2010000200 A1 WO 2010000200A1 CN 2009072548 W CN2009072548 W CN 2009072548W WO 2010000200 A1 WO2010000200 A1 WO 2010000200A1
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Prior art keywords
optical burst
channel
optical
burst
node
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PCT/CN2009/072548
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English (en)
French (fr)
Inventor
操时宜
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09771970.2A priority Critical patent/EP2293498B1/en
Publication of WO2010000200A1 publication Critical patent/WO2010000200A1/zh
Priority to US12/981,129 priority patent/US8509617B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0284—WDM mesh architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/62—Wavelength based
    • 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
    • H04Q11/0005—Switch and router aspects
    • 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
    • H04Q11/0066—Provisions for optical burst or packet networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0286—WDM hierarchical architectures
    • 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
    • H04Q11/0071—Provisions for the electrical-optical layer interface
    • 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
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0045—Synchronisation
    • 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
    • H04Q2011/0064—Arbitration, scheduling or medium access control aspects

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a node, a data processing system, and a data processing method. Background technique
  • Nodes in a communication network can be classified into source nodes, destination nodes, and intermediate nodes according to their functions.
  • the source node is a node that acts as a source to send service data
  • the destination node is a node that acts as a sink source to receive service data
  • the intermediate node is a node that forwards service data.
  • a node that has a service data on the road can be called a source node
  • a node that has a service data drop can be called a destination node.
  • the communication network is mainly composed of an upper layer data communication network and a lower layer transmission network.
  • the communication network can be divided into a core network and a convergence network according to the network topology structure.
  • the nodes located in the core network can be referred to as core nodes, and the nodes located in the aggregation network can be referred to as edge nodes.
  • the core node is mainly composed of a core router in the upper layer data communication network and a wavelength branching multiplexing device in the lower layer transmission network.
  • the edge node is mainly composed of an edge router in the upper layer data communication network and a wavelength division multiplexing device in the lower layer transmission network.
  • the edge node and the core node in the above communication network may serve as a source node and a destination node respectively when there is a service on the road and a downlink, and may serve as an intermediate node when there is no service on the road and on the downlink.
  • the edge node is used as the source node and the destination node, and the core node is used as the intermediate node.
  • network traffic in communication networks has grown exponentially, resulting in higher and higher requirements for router capacity and power consumption in nodes.
  • the capacity and power consumption of the router have been developed to an unacceptable level, and capital expenditure and operation cost are high. Therefore, reducing the capacity and power consumption of the router in the node, that is, reducing the capacity and power consumption of the node, especially reducing the power consumption of the node, is an urgent problem to be solved.
  • the prior art 1 proposes a solution.
  • One of the prior art is in communication
  • nodes especially core nodes
  • the non-local downlink service data can pass through the wavelength layer or the 0DU layer directly through the node. Since the wavelength cross-connection device of the node or the 0TN cross-connect device has high electrical processing efficiency, the technical solution of the prior art is The power consumption of the node can be reduced to some extent, especially the power consumption of the core node.
  • the prior art 2 proposes another solution, that is, all-optical switching technology, for example, optical burst switching (Opt i ca l Bur S t Swi tch) technology.
  • OBS technology optical burst switching
  • the main idea of OBS technology is to physically separate the optical burst channel from the control channel, respectively transmitting optical burst data and control channels.
  • the node only performs electrical processing on the control channel, and the information carried in the control channel is the upcoming light.
  • the burst data reserves resources, so that the optical burst data does not need to be photoelectrically converted when passing through the node, and can be directly transmitted and exchanged in the optical layer, thereby reducing the electrical processing process of the node and reducing the power consumption of the node.
  • the inventors have found that at least the following problems exist in the prior art:
  • the wavelength of the wavelength layer or the 0DU layer penetrated by the node in the service data is large, so the wavelength or The bandwidth of the 0DU path connection node is too large.
  • Connecting nodes with wavelength or 0DU path is equivalent to providing a direct path between nodes, especially between edge nodes.
  • the number of paths is approximately squared with the number of nodes (n* (n-l) /2 , where n is the number of routers for the node).
  • the optical burst switching technology lacks a suitable optical buffer, so that data is easily collided in the optical layer when transmitted in the 0BS system.
  • Embodiments of the present invention provide a node, a data processing system, and a data processing method, which overcome the defects of the size, power consumption, and cost of the node in the prior art and the data collision of the optical layer in the all-optical switching, thereby reducing the node. Volume, power consumption and cost as well as avoiding light layer generation in all-optical switching The problem of data conflicts.
  • An embodiment of the present invention provides a node, including:
  • control module configured to generate synchronization information and optical burst configuration information
  • At least one synchronization processing module configured to perform synchronization processing on the optical burst channels on one or more wavelengths according to the synchronization information
  • a cross-connect module configured to perform cross-connection processing on the synchronized optical burst channels according to the optical burst configuration information.
  • the embodiment of the invention further provides a data processing system, comprising: at least two nodes, wherein the nodes are connected by using one or more optical burst channels on a wavelength, and the node passes the service data through the optical protrusion
  • the transmitting channel is further configured to perform synchronization processing and cross-connection processing on the optical burst channel on one or more wavelengths carrying the service data, where the node includes:
  • control module configured to generate synchronization information and optical burst configuration information
  • At least one synchronization processing module configured to perform synchronization processing on the optical burst channels on one or more wavelengths according to the synchronization information
  • a cross-connect module configured to perform cross-connection processing on the synchronized optical burst channels according to the optical burst configuration information.
  • the embodiment of the present invention further provides a data processing method, including: generating synchronization information and optical burst configuration information; performing synchronization processing on an optical burst channel on one or more wavelengths according to the synchronization information;
  • the configuration information is cross-connected to the synchronized optical burst channel.
  • the nodes of the data processing system can transmit service data through the 0B channel, thereby reducing the connection bandwidth between the nodes, and the ports on the nodes can be It includes multiple 0B channels, which enables nodes to connect more nodes through multiple 0B channels, increasing the number of available connections of the nodes.
  • the number of node ports can be reduced when the number of connections is the same. This reduces the size, power consumption, and cost of the node.
  • the 0B channel can be configured, relatively fixed, and the node passes the optical burst configuration information pair 0B.
  • the channel performs cross-connection processing, which avoids the problem of data collision in the optical layer due to the lack of an optical buffer in all-optical switching.
  • the synchronization and cross-connection processing of the node to the 0B channel is completed in the optical layer, which reduces the photoelectric, electro-optical conversion and electrical processing, and reduces the power consumption, volume and cost of the node.
  • FIG. 1 is a schematic structural diagram of a communication network according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a 0B channel according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a physical format of 0B in an embodiment of the present invention.
  • Embodiment 1 of a node according to the present invention is a schematic structural diagram of Embodiment 1 of a node according to the present invention.
  • FIG. 5 is a schematic structural diagram of a second embodiment of a node according to the present invention.
  • FIG. 6 is a timing diagram of a control channel and a 0B channel in a second embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a cross-connect module in a node according to the present invention.
  • FIG. 8 is a second schematic structural diagram of a cross-connect module in a node according to the present invention.
  • FIG. 9 is a schematic structural diagram of a third embodiment of a node according to the present invention.
  • FIG. 10 is a timing diagram of a control channel and a 0B channel in a third embodiment of the present invention
  • FIG. 11 is a schematic structural diagram of a fourth embodiment of the node according to the present invention.
  • FIG. 12 is a third schematic structural diagram of a cross-connect module in a node according to the present invention.
  • FIG. 13 is a schematic structural diagram of Embodiment 5 of a node according to the present invention.
  • FIG. 14 is a schematic structural diagram of a sixth embodiment of a node according to the present invention.
  • FIG. 15 is a schematic diagram of an optical power envelope signal and a 0B slot clock in a fourth embodiment of the present invention
  • FIG. 16 is a fourth schematic structural diagram of a cross-connect module in a node according to the present invention.
  • FIG. 17 is a fifth structural diagram of a cross-connect module in a node according to the present invention.
  • FIG. 18 is a schematic structural diagram of Embodiment 7 of a node according to the present invention. detailed description The technical solutions of the embodiments of the present invention are further described in detail below through the accompanying drawings and embodiments.
  • the embodiment of the present invention takes a communication network as an example, but the communication network should not be construed as limiting the present invention.
  • the communication network is composed of a core network and a convergence network, and the core network includes nodes C1, C2, C3, and C4, Cl, C2, C3, and C4.
  • Cl, C2, C3, and C4 respectively correspond to one aggregation network, and the aggregation network includes multiple nodes.
  • the aggregation network corresponding to C1 includes nodes C1N1, C1N2, C1N2, C1N1, C1N2... ... C1N10 as an edge node.
  • the nodes of the communication network transmit the service data through the optical burst (Opt ica l Burst, hereinafter abbreviated as 0B) channel, and the nodes are connected through the 0B channel, and the 0B channel is A sub-wavelength channel divided at one or more wavelengths of the fiber, and the transmission entity of the 0B channel is 0B.
  • the node processes the 0B channel corresponding to the 0B channel carrying the service data, thereby implementing the processing of the 0B channel.
  • an optical fiber includes a plurality of wavelengths ⁇ 1 , ⁇ 2 , ⁇ ⁇ , on ⁇ 1 , ⁇ 2 , ... ⁇ ⁇
  • Each time slot is divided into several time slots, which are called 0 ⁇ time slots, t2 is the length of 0 ⁇ time slots; the payload in the 0B time slot is OB, and the length of 0B is t1, and data transmission is possible when the laser is turned on in tl time;
  • t 3 is the protection time, and the protection time mainly refers to the time required for the optical device to be turned on and off when the 0B transmits, receives, and switches.
  • a plurality of 0B slots constitute one frame, which is called a 0B frame, and T is a frame period.
  • T is a frame period.
  • the figure shows that 0B1 to OBn form a frame.
  • 0B is transmitted periodically, and 0B transmitted in the same cycle forms a 0B frame.
  • the 0B frame is periodically transmitted in units of T.
  • the lengths of 0B1, 0B2, ..., OBn may be the same or different, that is, the lengths of the divided 0B slots may be the same or different.
  • 0B at the same position in different periods constitutes a 0B channel, such as 0B1 channel, 0B2 channel... OBn channel, and the like.
  • the service data will be adapted to 0B, because the service data is transmitted by the packet, so the service data is adapted into multiple 0Bs according to the packet, and these 0Bs are transmitted at time interval T, thereby completing the entire service.
  • the transfer of data, these OBs transmitted at time interval T constitute the OB channel.
  • the service data is adapted to multiple OBIs, and the 0B1 is transmitted at the time interval T.
  • the 0B1s transmitted at the time interval T constitute the 0B1 channel, and the multiple 0B1s carry the service data, that is, the 0B1 channel carries the service data. .
  • the 0B channel carrying the service data may be a 0B channel on one wavelength, for example, the 0B1 channel on ⁇ 1; it may be a channel composed of multiple 0 ⁇ on one wavelength, for example, 0 ⁇ 1, 0 ⁇ 2 and 0 ⁇ 3 on ⁇ 1 Or a 0 ⁇ channel composed of 0 ⁇ at the same position on multiple wavelengths, for example, 0B1 on a partial wavelength of one fiber or 0B1 on all wavelengths; or multiple A plurality of 0 ⁇ channels composed of 0 ⁇ at the same position on the wavelength, for example, may be a 0 ⁇ channel composed of 0B1 and 0 ⁇ 2 on a partial wavelength of a fiber or a channel composed of 0B1 and 0 ⁇ 2 at all wavelengths.
  • the nodes in Figure 1 are connected by a 0-channel.
  • three 0-channels are shown in Figure 1, which are 0 ⁇ 2 channels on ⁇ 1 connecting C2N1 and C3N10, and 0 ⁇ 3 channels on ⁇ 1 connecting C1N10 and C3N1.
  • the 0 ⁇ 2 channel on ⁇ 2 connecting C1N10 and C3N2.
  • traffic data sent from C2N1 to C3N10 is carried on the 0 ⁇ 2 channel on ⁇ 1 .
  • FIG. 3 is a schematic diagram of a physical format of a frame according to an embodiment of the present invention.
  • a 0 ⁇ mainly includes power lock, timing, delimitation, overhead, and payload.
  • the power lock is used for the power of the burst receiver to lock 0 ⁇
  • the timing is used for the clock of the burst receiver to lock 0 ⁇
  • the delimitation is used to determine the boundary of 0 ⁇
  • the 0 ⁇ overhead contains the information of the 0 ⁇ channel
  • the payload bearer It It is the payload of 0 ⁇ .
  • power lock, timing and delimitation can also be part of the overhead
  • 0 ⁇ mainly includes overhead and payload.
  • 0 ⁇ channel can be configured, which can be static or dynamic.
  • the static configuration can be manually configured and configured through the command line or the network management plane.
  • the dynamic configuration can be automatically configured through the control plane protocol or other control protocols and algorithms.
  • the control plane protocol general multi-protocol label exchange protocol (Genera li zed) Mul t iprotocol Labe l Swi tching (GMPLS for short) or Automa tic Swi tch Opt i ca l Network (AS0N) for automatic placement.
  • GPLS General multi-protocol label exchange protocol
  • AS0N Automa tic Swi tch Opt i ca l Network
  • the service data can be transmitted between the nodes through the 0B channel.
  • the bandwidth of the 0B channel is small, which reduces the connection bandwidth between nodes.
  • the port of the node includes multiple 0B channels, so that the node can connect more nodes through the 0B channel, increasing the number of available connections of the node, and for one node. In the case of the same number of connections, the number of node ports can be reduced, thereby reducing the size, power consumption, and cost of the nodes. Since the different 0B channels are separated and independent of each other, the configuration change of one 0B channel does not affect other 0B channels, making the 0B channel configuration change more secure, which is beneficial to realize the dynamic configuration of the 0B channel.
  • the node includes a control module 1 1 , a synchronization processing module 12 , and a cross connection module 13 .
  • the control module 11 is configured to generate synchronization information, and send the synchronization information to the synchronization processing module 12; the control module 11 is further configured to generate optical burst configuration information, and send the optical burst configuration information to the cross-connect module 13.
  • the synchronization processing module 12 synchronizes the 0B channels on one or more wavelengths according to the synchronization information, and sends the synchronized 0B channels to the cross-connect module 13.
  • the cross-connect module 1 3 performs cross-connection processing on the synchronized 0B channel according to the optical burst configuration information.
  • the synchronization processing module 12 may be one or more, and only one is shown in FIG.
  • the port of the node in this embodiment includes multiple 0B channels, and the node can connect more nodes through multiple 0B channels, increasing the number of available connections of the node, and for one node, when the number of connections is the same , can reduce the number of node ports, thereby reducing the size, power consumption and cost of the node.
  • the 0B channel can be configured and relatively fixed, and the node can cross-connect the 0B channel through the optical burst configuration information, thereby avoiding the problem of data collision in the optical layer due to lack of the optical buffer in the all-optical switching. .
  • the synchronization and cross-connection processing performed by the node in the embodiment on the 0B channel is completed in the optical layer, which reduces the photoelectric, electro-optical conversion and electrical processing processes, and reduces the power consumption of the node.
  • FIG. 5 is a schematic structural diagram of Embodiment 2 of a node according to the present invention.
  • a node includes a control. Module 11, synchronization processing module 12 and cross-connect module 13.
  • the control module 11 includes a detecting unit 111, a generating unit 112, and a configuration information generating unit 113.
  • the detecting unit 111 is configured to detect the 0B frame header clock and the 0B slot clock from the pre-separated signals, and send the 0B frame header clock to the synchronization processing module 12, where the pre-separated signal in this embodiment is a control channel;
  • the generating unit 112 is configured to perform frequency locking processing and delay processing on the 0B frame header clock and the 0B slot clock to generate a new 0B frame header clock and a new 0B slot clock, and send the new 0B frame header clock to the synchronization processing module 12, Further, the generating unit 112 may further perform filtering processing and phase locking processing on the 0B frame header clock and the 0B slot clock.
  • the configuration information generating unit 113 is configured to use the preset optical burst channel configuration information and the new 0B frame header clock.
  • the optical burst configuration information is generated by the new 0B slot clock, and the optical burst configuration information is sent to the cross-connect module 13.
  • the optical burst channel configuration information includes the information of the 0B channel of the connected node, that is, includes the inter-node. Information that is connected through one or more 0B channels.
  • the optical burst configuration information further includes a timing relationship of each OB channel on the basis of the optical burst channel configuration information, that is, the cross-connect module 13 crosses the 0B constituting the 0B channel according to the optical burst configuration information during the cross-connect processing.
  • the synchronization processing module 12 includes an array control unit 121 and an array unit 122.
  • the array control unit 121 is configured to generate array control information according to the 0B frame header clock and the new 0B frame header clock
  • the array unit 122 is configured to configure the optical delay array according to the array control information.
  • the 0B channel of one or more wavelengths is synchronously processed by the optical delay array, and the synchronized processed 0B channel is sent to the cross-connect module 13.
  • the cross-connect module 13 includes a wavelength crossing unit 131 and an optical burst crossing unit 132.
  • the wavelength crossing unit 131 is configured to perform cross-connection processing on the wavelength of the synchronously processed OB channel according to the optical burst configuration information;
  • the cross unit 132 is configured to perform cross-connection processing on the synchronized OB channel according to the optical burst configuration information.
  • the node further includes a first thin film filter (Thin-Fim mil ter, TFF for short) 26, a receiver 24, a control channel processing module 14, a control channel generating module 15, a transmitter 25, and a second thin film filter 27.
  • the first thin film filter 26 pre-separates the control channel from the optical fiber, and transmits the control channel to the receiver 24;
  • the receiver 24 is configured to photoelectrically receive the received control channel Converting, and sending the converted control channel to the control channel processing module 14,
  • the control channel processing module 14 is configured to extract control channel information from the control channel, and the control channel generating module 15 is configured to update the control channel information, according to the update
  • the subsequent control channel information generates a new control channel based on the new 0B frame header clock and the new 0B slot clock;
  • the transmitter 25 is configured to perform electro-optical conversion on the received new control channel;
  • the second thin film filter 27 is used to pass the A new control channel for electro-optic conversion is coupled into the fiber.
  • control channel processing module 14 may further generate processing completion information after extracting the control channel information, and the processing completion information may be used as a reference for the delay processing of the new 0B frame header clock and the new 0B slot clock when the generating unit 1 12 generates the new 0B frame clock.
  • processing completion information may be used as a reference for the delay processing of the new 0B frame header clock and the new 0B slot clock when the generating unit 1 12 generates the new 0B frame clock.
  • the node also includes a client side service processing module 16, a burst container adaptation module 17 and an optical burst framing module 18.
  • the client-side service processing module 16 is configured to perform detection processing and forwarding processing on the service data. Further, the client-side service processing module 16 may further perform an adaptation process or a convergence process on the service data.
  • the burst container adaptation module 17 is configured to The processed service data is encapsulated into the burst container or the service data encapsulated in the burst container is decapsulated to generate service data.
  • the burst container is mainly used to complete the function of adapting the service signal and the rate difference of 0B, according to the function, according to The actual application is different, the burst container may include different levels of containers; the optical burst framing module 18 is configured to adapt the burst container encapsulating the service data to 0B according to the new 0B frame header clock and the new 0B slot clock. The received 0B is processed to generate a burst container encapsulating the service data.
  • the node further includes a burst receiver 19 and a burst transmitter 20 for photoelectrically converting the cross-connected OB and transmitting it to the optical burst framing module 18 for the burst transmitter 20
  • the optical multiplex conversion is performed on the OB to which the optical burst framing module 18 is adapted, and sent to the cross-connect module 13.
  • the node may further include a first fault detecting module 21, a second fault detecting module 22, and a fault monitoring module 23, where the first fault detecting module 21 is configured to detect the light of the input wavelength of the optical burst crossing unit 1 32.
  • the second fault detection module 22 is configured to detect the optical power of the output wavelength of the optical burst crossing unit 1 32.
  • the fault monitoring module 23 is configured to use the optical power of the input wavelength, the optical power of the output wavelength, and the optical burst configuration information. Generating optical burst channel fault information, the optical burst channel fault information is used to monitor the optical burst channel entering and passing through the optical burst crossing unit 1 32 Barriers to monitor the failure of optical burst channels.
  • the node may further include an optical fiber amplifier 28 for optically amplifying the signal in the received optical fiber, for example, an Erbium-doped Optica Optical Fiber Amplifier (EDFA).
  • EDFA Erbium-doped Optica Optical Fiber Amplifier
  • the node in this embodiment needs to perform synchronization processing on the OB channel, and the synchronization processing of the 0B channel includes synchronization of the 0B slot and synchronization of the 0B frame.
  • a wavelength can be designated as a control channel in each fiber, and the wavelength is separated from the input wavelength by the first thin film filter 26, that is, the control channel is separated by the first thin film filter 26 in advance.
  • the control channel is photoelectrically converted by the receiver 24 and sent to the control channel processing module 14, the signal of which includes the 0B frame identifier and the 0B slot identifier.
  • synchronization of the 0B channel in one or more wavelengths needs to be achieved through the control channel.
  • FIG. 6 is a timing diagram of a control channel and a 0B channel in a second embodiment of the present invention.
  • the control channel mainly includes an OB frame identifier, a 0B slot identifier, and a payload, where the 0B frame identifier indicates that the 0B frame starts.
  • the location which indicates the 0B1 slot start position, the 0B slot identifier identifies each 0B slot start position, payload bearer clock information, and other management and maintenance information.
  • the control channel has several main functions: one is to transmit clock information, the other is to transmit the synchronization information of the 0B channel, and the third is to transmit maintenance management information. Each node locks the clock of the control channel as the service clock.
  • the clock maintenance information such as the priority of the clock is carried by the control channel payload, and the maintenance management information is carried in the control channel payload.
  • the 0B channel and the control channel are synchronized, that is, the corresponding 0B slot identifier of each 0B slot alignment control channel and the 0B frame identifier in the 0B frame alignment control channel, for example, the 0B channel corresponding to ⁇ 1
  • the 0 ⁇ 2 is aligned with the 0 ⁇ 2 time slot identifier in the control channel ⁇ c
  • the 0 ⁇ frame in ⁇ 1 is aligned with the 0B frame identifier in the control channel A c .
  • the process of the synchronization process specifically includes: aligning the frame header of the 0B frame on different wavelengths; or, aligning the 0B of the same position on different wavelengths.
  • the synchronization processing of the 0B channel in the node is performed by the control module 11 and the synchronization processing module 12.
  • the detecting unit 111 detects the 0B frame header clock and the 0B slot clock from the 0B frame identifier and the 0B slot identifier of the control channel, and sends the 0B frame header clock and the 0B slot clock to the generating unit 112; the generating unit 112 pairs 0B
  • the frame header clock and the 0B slot clock are processed by a frequency lock and a delay to generate a new 0B frame header clock and a new 0B slot clock, wherein the delay processing is based on the processing completion information generated by the control channel processing module 14, and This base is delayed for a while.
  • the generating unit 112 also monitors the processing completion information, and if the delay of the processing completion information continues to change and exceeds a certain threshold, the generated new 0B frame header clock and the new 0B slot clock may be adjusted; the array control unit 121
  • the array control information is generated according to the 0B frame header clock and the new 0B frame header clock.
  • the array control information is the calculated time difference between the 0B frame header clock and the new 0B frame header clock.
  • the array unit 122 configures the optical delay according to the array control information. In the time array, the 0B channel of one or more wavelengths is synchronously processed by the optical delay array. In this embodiment, the synchronization process is to delay the optical path of the 0B channel.
  • the control channel generation module 15 performs update processing according to the control channel information generated by the control channel processing module 14, and based on the updated control channel information, based on the new 0B frame header clock and the new 0B frame header clock.
  • a new control channel is generated; the new control channel is electro-optically converted by the transmitter 25 and sent to the second thin film filter 27, which is coupled into the fiber by a second thin film filter 27.
  • the optical path delay processing of the 0B channel it will be synchronized with the new control channel coupled into the fiber after cross-connect processing.
  • the wavelength crossing unit 131 is configured to perform the wavelength of the synchronously processed 0B channel according to the optical burst configuration information.
  • the optical burst crossing unit 1 32 is configured to perform cross-connection processing on the synchronized OB channel according to the optical burst configuration information.
  • the optical burst crossing unit 1 32 sends the 0B corresponding to the 0B channel to the burst receiver 19, and the burst receiver 19 photoelectrically converts the received 0B and transmits Giving light burst framing Block 18, the optical burst framing module 18 processes the received OB to generate a burst container encapsulating the service data, and the burst container adapting module 17 decapsulates the service data encapsulated into the burst container to generate service data.
  • the client-side service processing module 16 performs detection processing and forwarding processing on the service data. Further, the service data may be subjected to adaptation processing, thereby completing the process of localizing the service data.
  • the client-side service processing module 16 When the node has the service data on the road, the client-side service processing module 16 performs the detection processing and the forwarding process on the service data. Further, the client-side service processing module 16 can also perform the adaptation processing or convergence processing on the service data, and the burst
  • the container adaptation module 17 encapsulates the processed service data into the burst container, and the optical burst framing module 18 adapts the burst container encapsulating the service data to 0B according to the new 0B frame header clock and the new 0B slot clock.
  • the burst transmitter 20 performs the electro-optical conversion of the adapted 0B and sends it to the cross-connect module 13 . In this embodiment, the burst transmitter 20 converts the adapted 0B to the wavelength cross-connecting unit 1 31 by electro-optical conversion. Thereby completing the process of the business data.
  • the structure and cross-connection processing of the cross-connect module 13 in the node may be different according to the type of the burst receiver and the burst transmitter used by the nodes in the communication network.
  • the node in this embodiment may be the edge node C2N1 in the aggregation network corresponding to the core node C2 in FIG. 1, and all the edge nodes in FIG. 1 adopt the fixed wavelength burst transmitter 19 and the tunable wavelength burst.
  • the receiver 20, at this time, each edge node in FIG. 1 should only transmit service data at a fixed wavelength, that is, the service data on each edge node is transmitted at a fixed wavelength, which is shown in FIG.
  • the OB channel of the plurality of bearer service data between the nodes shown in FIG. 1 is only used to describe multiple cases of transmitting service data between the nodes through the OB channel, instead of the inter-node bearer service in this embodiment.
  • the cross-connect module includes a wavelength crossing unit 1 31 and an optical burst crossing unit 1 32, wherein the wavelength crossing unit 1 31 includes a splitter and a combination.
  • the wave, optical burst crossing unit 1 32 includes a plurality of splitters, a plurality of optical switches, and a coupler. Since the burst receiver 19 connected to the cross-connect module is a tunable wavelength burst receiver, the burst receiver 19 can receive 0B on different wavelengths, that is, 0B sent from different nodes and need to be detoured at the local node.
  • the connection module cross-connects the 0B channels on the received multiple wavelengths.
  • the demultiplexer in the wavelength crossing unit 1 31 performs the demultiplexing process on the received wavelength, and then controls the 0B corresponding to the 0B channel on each wavelength by controlling the splitter and the optical switch in the optical burst crossing unit 1 32. Processing, taking out the 0B corresponding to the 0B channel that the node needs to receive, that is, the 0B corresponding to the 0B channel of the local downlink, and coupling the extracted 0B on different wavelengths to the burst receiver 19 through the coupler.
  • the optical burst crossing unit 1 32 processes the 0B corresponding to the 0B channel to implement the downlink process of the 0B channel, and transmits the wavelength of the remaining 0B channel that does not need the local downlink to the combiner.
  • the burst transmitter 20 in this embodiment is a fixed-wavelength burst transmitter, the burst transmitter 20 needs to send the 0B corresponding to the local-channel 0B channel to the combiner at a fixed wavelength to implement the 0B channel.
  • the 0B channel which does not need to be locally down, can be directly through through the cross-connect module, that is, the optical layer is penetrated at the node, and no photoelectric, electro-optical conversion, or complicated electrical processing is required.
  • the cross-connect module in FIG. 7 is applicable to a case where a service data transmitted from another node and required to be downlinked at the node carries an OB channel on one wavelength or a plurality of OB channels on one wavelength, and the cross-connect module of the node The 0B corresponding to one 0B channel on one wavelength or the 0B corresponding to multiple 0B channels on one wavelength is taken to complete the downlink process of the service data.
  • the structure diagram of the cross-connect module may be as shown in FIG. 8 when the service data sent from other nodes and the service data to be dropped on the node is carried in the 0B channel of the same location 0B on multiple wavelengths.
  • FIG. 8 is a second schematic structural diagram of a cross-connect module in a node according to the present invention.
  • the cross-connect module includes a wavelength crossing unit 1 31 and an optical burst crossing unit 1 32.
  • the wavelength crossing unit 1 31 includes a band filter and a band multiplexer
  • the optical burst crossing unit 1 32 includes a plurality of splitters, a plurality of optical switches, and a coupler. Because the 0B channel corresponding to the service data of the node is carried in multiple wavelengths, the band filter in the wavelength crossing unit 1 31 needs to filter the band in the fiber, and multiple channels corresponding to the 0B channel.
  • the wavelength is filtered out, and then the plurality of wavelengths carrying the 0B channel are processed by controlling the splitter and the optical switch in the optical burst crossing unit 1 32, and the 0B of the plurality of wavelengths that the node needs to receive is taken out and taken out.
  • the 0B on the plurality of wavelengths is coupled and transmitted to the burst receiver 19.
  • the burst receiver 19 is composed of a splitter and a burst receiving array group.
  • the splitter processes the multiple wavelengths of the OB channel and sends them to the burst receiving array.
  • the burst receiving array simultaneously receives 0B on different wavelengths, thereby completing the 0B channel carried on multiple wavelengths. The process of the business data.
  • the 0B channel that does not need to be off the node and the 0B channel that is on the node of the node are sent to the band multiplexer.
  • the service data of the node on the local node can be carried on the 0B channel composed of 0B at the same position on multiple wavelengths.
  • the structure and function of the cross-connect module and the service data bearer are transmitted when the service data sent from other nodes and needs to be downlinked at the node carries multiple OB channels composed of 0Bs of multiple corresponding same locations on multiple wavelengths.
  • the downlink process of the service data is similar to the 0B channel formed by the service data carrying the same position 0B on multiple wavelengths, except that the burst is
  • the receiving array simultaneously receives a plurality of corresponding corresponding locations 0B on different wavelengths, thereby completing the downlink process of the service data.
  • the cross-connect module in Figure 8 There is a special case in the cross-connect module in Figure 8.
  • the wavelength crossing unit 1 31 can be simplified, and the band filter and the band multiplexer are not required, but at this time, a coupler is required to be locally on the road.
  • the 0B channel is coupled into the optical fiber, the optical burst crossing unit 1 32 includes a splitter and an optical switch, and the optical burst crossing unit 1 32 processes the 0B channel carried on all wavelengths, and takes out the 0B in the 0B channel, and The extracted 0B is sent to the optical burst receiver 19.
  • FIG. 9 is a schematic structural diagram of a third embodiment of a node according to the present invention.
  • the control module 11 includes a detecting unit 111, a generating unit 112, and The configuration information generating unit 113 and the optical burst slot clock generating module 115.
  • the detecting unit 111 is configured to detect the 0B frame header clock from the pre-separated signals, and send the 0B frame header clock to the synchronization processing module 12.
  • the pre-separated signal is a control channel; the generating unit 112 is used to pair 0B.
  • the frame header clock performs a frequency-locking process and a delay process to generate a new OB frame header clock, and sends a new OB frame header clock to the synchronization processing module 12 and the optical burst slot clock generation module 115.
  • the generating unit 112 may also The 0B frame header clock performs filtering processing and phase lock processing;
  • the optical burst slot clock generation module 115 is configured to generate a new reference based on the start position of the new 0B frame header clock.
  • the configuration information generating unit 311 is configured to generate optical burst configuration information according to the preset optical burst channel configuration information and the new OB frame header clock and the new OB slot clock, and send the optical burst configuration information Give the cross-connect module 1 3.
  • the new 0B slot clock is generated by the optical burst slot clock generation module 115.
  • the functions of the remaining modules are the same as those in the second embodiment, and are not described here.
  • This embodiment is generally used when the interval length between the 0Bs (i.e., the guard time) is large.
  • the synchronization processing of the 0B channel may include only the synchronization of the 0B frame, and the 0B slot clock is generated by the node according to the generated new 0B frame. Generated by the head clock (the error of the 0B slot clock due to clock errors between different nodes is absorbed by the interval between 0B).
  • the 0B channel and the control channel are synchronized, that is, the 0B frame of the 0B channel is aligned with the 0B frame identifier in the control channel.
  • the control channel mainly includes an OB frame identifier and a payload, and the 0B frame identifier indicates a 0B frame start position, and the 0B channel and
  • the 0B frame of the 0B channel needs to be aligned with the 0B frame identifier in the control channel.
  • the 0B frame in ⁇ 1 is aligned with the 0 ⁇ frame identifier in the control channel ⁇ c .
  • edge nodes in Figure 1 can also use a tunable wavelength burst transmitter and a fixed wavelength burst receiver, in which case each edge node receives a 0 ⁇ channel at a fixed wavelength, as shown in Figure 1. It is not shown that the multiple channels of the bearer service data between the nodes shown in FIG. 1 are only used to describe the multiple cases in which the service data is transmitted between the nodes through the 0-channel, instead of the inter-node bearer service in this embodiment. The case of 0 ⁇ channel of data. At this time, only the wavelength crossing unit 1 31 may be included in the cross-connect module 13 of the node.
  • FIG. 11 is a schematic structural diagram of a fourth embodiment of a node according to the present invention.
  • the node in this embodiment differs from the node in the second embodiment only in that, in this embodiment, the cross-connect module does not include an optical burst crossing unit.
  • the node in this embodiment does not include the first fault detection module and the second fault detection module.
  • the function of the channel fault detection may be completed by the burst receiver, so the node may further include a fault monitoring module, where the fault monitoring module is in the figure.
  • the remaining modules and their functions and implementation The same in Example 2, it will not be described in detail here.
  • the cross-connect module 13 includes only the wavelength crossing unit 1 31 , and the specific structure thereof can be as shown in FIG. 12 .
  • the cross-connect module includes a wavelength crossing unit 1 31, and the wavelength crossing unit 1 31 is composed of a TFF and a coupler.
  • the burst receiver 19 connected to the cross-connect module is a fixed-wavelength burst receiver, the 0B channel at the fixed wavelength is the 0B channel that the edge node needs to receive, that is, the edge is The 0B channel of the node down.
  • the cross-connect processing of the wavelength crossing unit 1 31 is performed by taking out the wavelengths that the burst receiver 19 needs to receive from a plurality of wavelengths of the optical fiber, which is realized by the TFF in the wavelength crossing unit 1 31.
  • the TFF filters out the wavelengths that the burst receiver 19 needs to receive from a plurality of wavelengths of the fiber and transmits it to the burst receiver 19, thereby completing the local down process of the 0B channel.
  • the TFF will send the remaining wavelengths of the 0B channel that does not need the local down channel to the coupler. Since the burst transmitter 20 is a burst transmitter of adjustable wavelength, the burst transmitter 20 can set the 0B corresponding to the 0B channel.
  • the required wavelength is coupled directly into the fiber through the coupler.
  • This cross-connection process only needs to cross-connect the wavelength of the 0B channel to realize the cross-connection processing for the 0B channel.
  • the cross-connect module of Figure 12 is suitable for the case where the 0B channel that needs to be localized is a 0B channel on one wavelength or multiple 0B channels on one wavelength.
  • FIG. 13 is a schematic structural diagram of a fifth embodiment of the node according to the present invention.
  • the difference between the embodiment and the fourth embodiment is that the control module 11 is different.
  • the control module 11 includes a detecting unit 11 1 .
  • the detecting unit 1 11 is configured to detect the 0B frame header clock from the pre-separated signals, and send the 0B frame header clock to the synchronization processing module 12.
  • the pre-separated signal is a control channel;
  • the generating unit 112 is configured to The 0B frame header clock performs a frequency lock process and a delay process to generate a new 0B frame header clock, and sends a new 0B frame header clock to the synchronization processing module 12 and the optical burst time slot clock generation module 115.
  • the generating unit 112 The 0B frame header clock may also be subjected to filtering processing and phase lock processing; the optical burst slot clock generation module 115 is configured to use the start position of the new 0B frame header clock as a reference.
  • a configuration information generating unit 11 3 configured to generate optical burst configuration information according to preset optical burst channel configuration information and a new OB frame header clock and a new OB slot clock, and generate an optical burst
  • the configuration information is sent to the cross-connect module 13.
  • the new 0B slot clock is generated by the optical burst slot clock generation module 115.
  • the functions of the remaining modules are the same as those in the fourth embodiment, and are not described here. This embodiment is generally used when the interval length (ie, the guard time) between 0Bs is large.
  • the nodes in the second embodiment to the fifth embodiment can be used as the edge node and the core node, and can complete the synchronization and cross-connection processing for the 0B channel.
  • the node can receive the service data through the downlink of the 0B channel; by adapting the service data to 0B and the 0B to the road, the 0B channel is implemented, that is, The node can transmit the service data; the 0B channel that is not in the downlink of the node can directly pass the node, thereby realizing the forwarding of the service data.
  • the node may include multiple 0B channels on the port, and the node may connect more nodes through multiple 0B channels, thereby increasing the available between nodes.
  • the number of connections while for a node, the number of node ports can be reduced in the case of the same number of connections, thereby reducing the size, power consumption, and cost of the node device.
  • the 0B channel in this embodiment may be configured and relatively fixed, and the node may cross-connect the 0B channel through the optical burst configuration information, thereby avoiding data collision in the optical layer due to lack of the optical buffer in all-optical switching. problem.
  • FIG. 14 is a schematic structural diagram of Embodiment 6 of a node according to the present invention.
  • the node includes a control module 11, a plurality of synchronization processing modules 12, and a cross-connect module 13.
  • the control module 11 includes a plurality of optical power detecting units 114, a plurality of detecting units 111, a generating unit 112, and a configuration information generating unit 113.
  • one optical power detecting unit 114 and one detecting unit 111 are disposed for each fiber.
  • a synchronization processing module 12 is a synchronization processing module 12.
  • the optical power detecting unit 114 is configured to perform photoelectric conversion on the received optical power signal, and output an optical power envelope signal to the detecting unit 11 1 ; the detecting unit 11 1 For detecting the 0B frame header clock and the 0B slot clock from the pre-separated signals, and transmitting the 0B frame header clock to the synchronization processing module 12, the pre-separated signal in this embodiment is an optical power envelope signal; 112 is configured to perform frequency locking processing and delay processing on the 0B frame header clock and the 0B slot clock to generate a new 0B frame header clock and a new 0B slot clock, and send the new 0B frame header clock to the synchronization processing module 12, further The generating unit 112 may further perform filtering processing and phase locking processing on the 0B frame header clock and the 0B slot clock; the configuration information generating unit 113 is configured to use the preset optical burst channel configuration information and the new 0B frame header clock and the new The 0B slot clock generates optical burst configuration information
  • Each of the synchronization processing modules 12 includes an array control unit 121 and an array unit 122.
  • the array control unit 121 is configured to generate array control information according to the 0B frame header clock and the new 0B frame header clock
  • the array unit 122 is configured to configure the optical extension according to the array control information.
  • the time array synchronizes the 0B channels of the plurality of wavelengths through the optical delay array, and sends the synchronized 0B channels to the cross-connect module 13.
  • the cross-connect module 13 is configured to perform cross-connection processing on the synchronized OB channel sent by the multiple synchronization processing modules according to the configuration information.
  • the node also includes a first thin film filter 26, a receiver 24, a control channel processing module 14, a control channel generation module 15, a transmitter 25, and a second thin film filter 27.
  • the first thin film filter 26 pre-separates the control channel from the optical fiber, and sends the control channel to the receiver 24; the receiver 24 is configured to photoelectrically convert the received control channel, and send the converted control channel
  • the control channel processing module 14 is configured to extract control channel information from the control channel
  • the control channel generating module 15 is configured to update the control channel information, and use a new 0B frame header according to the updated control channel information.
  • the clock and the new 0B time slot clock generate a new control channel for reference; the transmitter 25 is used for electro-optical conversion of the received new control channel; and the second thin film filter 27 is used to couple the new control channel that is electrically and optically converted into the optical fiber.
  • the control channel in this embodiment may also be multiple, for example, one control channel may be separated from each fiber, and the control channel may be separated from a part of the fiber according to different practical applications.
  • the node may also include a plurality of fiber amplifiers 28 for optically amplifying signals in the received fiber, such as EDFA.
  • the node in this embodiment needs to perform synchronization processing on the 0B channel.
  • the synchronization processing of the node to the 0B channel is based on the own information of the 0B.
  • Each optical power detecting unit 114 separates 10% of the optical power signal from the connected optical fiber for detection, and outputs an optical power envelope signal; and the detecting unit 111 detects the 0B frame of each optical fiber from the optical power envelope signal.
  • the head clock and the 0B slot clock; the generating unit 112 performs comprehensive processing according to the 0B frame header clock and the 0B slot clock corresponding to each fiber, and selects an optimal value as the new 0B frame header clock and the new 0B slot clock;
  • the array control unit 121 corresponding to the root fiber generates the array control information according to the 0B frame header clock and the new 0B frame header clock.
  • the array control information is the calculated time difference between the 0B frame header clock and the new 0B frame header clock, and the array unit
  • the optical delay array is configured according to the array control information, and the optical delay of the 0B channel is performed by the optical delay array to complete the synchronization process of the 0B channel on multiple wavelengths of the multiple optical fibers.
  • the process of the clock and the 0B time slot clock is described in further detail.
  • 15 is a schematic diagram of an optical power envelope signal and a 0B slot clock in a fourth embodiment of the present invention. As shown in FIG. 15, the optical power detecting unit 114 outputs an optical power envelope signal in an optical fiber, assuming an optical fiber.
  • the 0B channels on different wavelengths are synchronized, and the optical power envelope signal includes several pulses, and these pulses correspond to different 0B time slots, since 0B is not necessarily configured on the 0B time slot of each wavelength in the optical fiber. Therefore, the pulse amplitude in the optical power envelope signal is high or low, and even a missing condition occurs.
  • the detecting unit 11 1 needs to first process the optical power envelope signal, such as shaping and filtering, to obtain a regular 0B time slot clock, as shown in FIG.
  • the detecting unit 11 detects the 0B frame header clock from the optical power envelope signal, and specifically includes: for example, presetting the power blocking area of the 0B1 corresponding to the first 0B time slot (0B1 time slot) adopts all "1" Coding, the power lock area of 0B corresponding to other 0B time slots is a mixed code of "1" and "0", for example, an encoding of "1" and "0” alternating like "101010".
  • the power lock region is sufficiently long, i.e., the code is sufficiently long, a spike can be detected in the position of the corresponding 0B1 slot header in the optical power envelope signal.
  • the detecting unit 11 1 detects the power value of the 0B time slot in the optical power envelope signal according to the code of the power lock zone of the preset 0B, for example, the power value may be sampled multiple times in one 0B time slot, if the 0B The power value of the time slot is consistent
  • the code of the power lock region of the optical burst is characterized by all "1" coding, that is, it is detected that a power spike occurs at the beginning of a certain 0B slot, that is, the code is all "1", indicating that the 0B slot
  • the 0B1 time slot that is, the start position of the 0B frame, is taken out, and the "0B frame header clock" is obtained, so that the detecting unit 111 completes the process of detecting the 0B frame header clock and the 0B slot clock from each of the optical fibers.
  • the synchronization processing of the 0B channel of the multiple wavelengths in this embodiment can also adopt the synchronous processing method in the second embodiment.
  • the method for realizing the 0B channel synchronization by using the control channel in the second embodiment is mature.
  • the control channel needs to be separated from each fiber, and the control channel is processed, which makes the number of control channels somewhat redundant. Therefore, in this embodiment, the 0B channel synchronization is implemented by using the 0B self-contained information, which reduces the processing of the control channel, so that the service data transmission and the control management are separated, thereby further reducing the cost.
  • an optical power detection unit needs to be added to the control module.
  • the node in this embodiment may be the core node C2 in FIG. 1, and the node in this embodiment is different according to the type of the burst receiver and the burst transmitter used by the edge node in the communication network.
  • the structure and cross-connection processing of the cross-connect module 13 in the process will be different.
  • the cross-connect module 13 in C2 may only include the wavelength cross unit 1 31, and its cross-connect function This is achieved by the wavelength crossing unit 1 31.
  • the cross-connect module includes only a wavelength crossing unit 1 31, and the wavelength crossing unit 1 31 is composed of a splitter, a combiner, and a coupler. . Since the edge node uses a fixed-wavelength burst receiver, that is, the edge node corresponding to C2 can only receive a fixed wavelength, the splitter in the wavelength crossing unit 1 31 of C2 splits the wavelength in the fiber connecting the edge node.
  • the service data of Cl, C3, and C4 are the service data that the edge node corresponding to C2 needs to receive. Therefore, the wavelength of the 0B channel carrying the service data can be directly coupled into the C2 convergence network fiber through the coupler.
  • the cross-connect module in FIG. 16 can realize the cross-connection processing for the 0B channel by performing cross-connection processing on the wavelength at which the 0B channel is located.
  • the cross-connect module 13 in C2 may only include the fiber cross-over unit, which is cross-connected.
  • the function is implemented by a fiber cross unit.
  • 17 is a fifth schematic structural diagram of a cross-connect module in a node according to the present invention. As shown in FIG. 17, the cross-connect module includes only a fiber-optic cross unit, and the fiber cross-connect unit is composed of a splitter and a coupler.
  • the fiber cross-unit only needs to split the fiber from the C2 convergence network and pass through
  • the coupler couples the shunted fiber to the C2 aggregation network and to other core nodes; for other core nodes to access the fiber of the fiber crossover unit 1 31, it is directly coupled into the C2 aggregation network by the coupler.
  • FIG. 18 is a schematic structural diagram of a seventh embodiment of a node according to the present invention. As shown in FIG. 18, the difference between the embodiment and the sixth embodiment is that the control module 11 is different.
  • the control module 11 includes multiple optical power detecting units. 14. A plurality of detecting units 1 11 , a generating unit 112 , a configuration information generating unit 11 3 , and an optical burst slot clock generating module 115.
  • the optical power detecting unit 114 is configured to perform photoelectric conversion on the received optical power signal, and output an optical power envelope signal to the detecting unit 111.
  • the detecting unit 111 is configured to detect the 0B frame head clock from the pre-separated signal, and the 0B is The frame header clock is sent to the synchronization processing module 12 and the optical burst time slot clock generation module 115.
  • the pre-separated signal in this embodiment is an optical power envelope signal; the generating unit 12 is configured to perform frequency locking processing on the 0B frame header clock.
  • the delay processing generates a new 0B frame header clock, and sends the new 0B frame header clock to the synchronization processing module 12.
  • the generating unit 112 can also perform filtering processing and phase lock processing on the 0B frame header clock;
  • the clock generation module 1 15 is configured to generate a new 0B slot clock based on the start position of the new 0B frame header clock;
  • the configuration information generating unit 11 3 is configured to use the preset optical burst channel configuration information and the new 0B frame header clock. And generating a light burst configuration information with the new 0B slot clock, and sending the optical burst configuration information to Cross connect module 13.
  • the difference between this embodiment and the sixth embodiment is that the new 0B slot clock is generated by the optical burst slot clock generation module 115.
  • the functions of the remaining modules are the same as those in Embodiment 6, and are not described here. This embodiment is generally used when the interval length (ie, the guard time) between 0Bs is large.
  • the nodes in the foregoing sixth embodiment and the seventh embodiment are used as the core node and the edge node, and the synchronization and cross-connection processing for the 0B channel can be completed.
  • the node realizes the cross-connection processing of the 0B channel by completing the cross-connection processing on the wavelength or the optical fiber of the 0B channel, and the 0B channel can be directly penetrated at the node without passing through the photoelectric Or electro-optic conversion and electrical processing, thereby achieving direct penetration of the 0B channel at the optical layer of the node.
  • the OB channel in the foregoing embodiment 6 and the seventh embodiment may be configured, relatively fixed, and the node, especially as the core node, may cross-connect the 0B channel through the configuration information, thereby avoiding the lack of optical buffer in the all-optical switching.
  • the problem of data collision occurs in the optical layer; the synchronization and cross-connection processing performed by the node on the 0B channel is completed in the optical layer, which reduces the photoelectric, electro-optical conversion and electrical processing processes, and reduces the power consumption and volume of the core node and cost.
  • the 0B channel can be protected by channel protection, which enhances the reliability of the network.
  • the implementation manners are different according to different protection modes.
  • the protection of the 0B channel may be: at the source node, that is, the node with the service data on the road, the client side service data is sent to the optical protrusion after being processed by the client side service processing module and encapsulated by the burst container adaptation module. After the framing module is adapted to 0B by the optical burst framing module, 0B is copied into two channels and transmitted through the optical burst transmitter. The two identical 0Bs form different 0B channels, and the two 0B channels form a protection relationship. Under normal circumstances, the two 0B channels will pass through different physical links, such as fiber paths.
  • the optical burst framing module selects a 0B channel for processing. If the destination node detects that the currently selected 0B channel has failed, It will switch to another 0B channel, thus completing the protection switching process of the 0B channel and realizing the protection of the 0B channel. Since different 0B channels are separated in time and independent of each other, the protection switching of the 0B channel can not affect other 0B channels, so that the reliability of the network Higher.
  • the embodiment of the present invention further provides a data processing system.
  • the data processing system includes at least two nodes, and the nodes use one or more optical burst channels on the wavelength to transmit service data.
  • nodes are connected through the 0B channel to transmit service data
  • the port of the node includes multiple 0B channels, so that the node can connect more nodes through the 0B channel, and the available connection of the node is increased.
  • the number of node ports can be reduced, thereby reducing the size, power consumption, and cost of the node device; the 0B channel for transmitting service data can be configured, relatively fixed.
  • the node can process the 0B channel, which avoids the problem of data collision in the optical layer due to the lack of an optical buffer in all-optical switching.
  • the data processing system includes four nodes, and the service data is transmitted between the nodes by using the 0B channel on one or more wavelengths, wherein the four nodes are also used to perform 0B on one or more wavelengths carrying the service data.
  • the channel is synchronized and cross-connected.
  • four nodes may be a core node C2 in the core network, an edge node C2N1 in the aggregation network corresponding to the core node C2, and a core node C3 and a core node C3 in the core network.
  • Edge node C 3N1 0 in the network.
  • the edge nodes C2N1 and C 3N1 0 can use the nodes in Figure 5 or Figure 9, the edge nodes C2N1 and
  • C 3N1 0 The specific structure of C 3N1 0 and the functions of the respective structures are the same as those in the second embodiment or the third embodiment, and will not be described in detail here.
  • the core nodes C2 and C3 may adopt the nodes in FIG. 14 or FIG. 18.
  • the specific structures of the core nodes C2 and C3 and the functions of the respective structures are the same as those in the sixth embodiment or the seventh embodiment, and are not described in detail herein.
  • the cross connection modules in the edge nodes C2N1 and C 3N1 0 in the data processing system may adopt the Cross-connect module, as shown in Figure 7, the cross-connect module includes a wavelength cross The element 1 31 and the optical burst crossing unit 1 32 , wherein the wavelength crossing unit 1 31 includes a splitter and a combiner, the optical burst crossing unit 1 32 includes a plurality of splitters, a plurality of optical switches, and a coupler.
  • the core nodes C2 and C3 in the data processing system may employ the cross-connect module in FIG. 17, as shown in FIG. 17, the cross-connect module includes only the fiber cross-over unit, and the fiber-crossing unit is composed of a splitter and a coupler.
  • the service data needs to be sent from the C2N1 in the C2 aggregation network to the C3N10 in the C3 aggregation network.
  • the service data needs to be carried by C2N1, C2, C3, and C3N10 in sequence, and is carried by a 0B channel on one wavelength.
  • the data processing system needs to perform synchronization processing and cross-connection processing on the 0-channel carrying the service data, so as to implement the process of the uplink, the punch-through, and the downlink of the 0 ⁇ corresponding to the 0 ⁇ channel, thereby completing the service data. Transfer.
  • the edge node C2N1 completes the service data that needs to be sent to the C3N10 through the client side service processing module 16, the burst container adaptation module 17, the optical burst framing module 18, and the burst transmitter 20.
  • the client-side service processing module 16 receives the service data to be sent, and performs detection processing and forwarding processing on the service, and further includes an adaptation processing or a convergence processing, and sends the processed service data to the burst container adaptation module. 17.
  • the burst container adaptation module 17 encapsulates the business data into a burst container.
  • the optical burst framing module 18 adapts the burst container encapsulating the service data to 0 ⁇ according to the new 0 ⁇ frame header clock and the new 0 ⁇ slot clock generated when the C2N1 performs the synchronization processing, which is 0 ⁇ 2 in the ⁇ ⁇ in this embodiment.
  • the optical burst framing module 18 also assembles 0 ⁇ 2 and 0 ⁇ sent to other edge nodes into a 0 ⁇ frame, and the 0 ⁇ frame has a wavelength of ⁇ 1.
  • the burst transmitter 20 transmits the 0 ⁇ frame in which 0 ⁇ 2 is located to the wavelength crossing unit 1 31, thereby completing the uplink process of the traffic data at N1.
  • the combiner in the wavelength crossing unit 1 31 multiplexes the wavelength at which 0 ⁇ 2 is located with other wavelengths and transmits it to the core node C2.
  • the core node C2 receives the 0B channel from the OB channel and other core node fibers in the aggregation network fiber, and synchronizes the 0B channel in all the fibers.
  • the synchronization process is performed by multiple Synchronous processing module 12 and the control module 11 is completed, and the specific synchronization processing method is the same as that in the node embodiment 6, and will not be described in detail herein.
  • the splitter in the fiber cross-over unit splits the fiber from the C2 aggregation network, and directly splits the fiber of the C2 aggregation network to C3, that is, directly splits the fiber of the 0B2 channel carrying the service data to C3.
  • C3 performs a synchronization process on the 0B channel of all the access fibers, and the synchronization process is completed by the plurality of synchronization processing modules 12 and the control module 11.
  • the specific synchronization processing method is the same as that in the node embodiment 6, where More details will be described.
  • the coupler in the C3 fiber crossover unit directly couples the fiber connected to the C3 into the C3 convergence network fiber, and the fiber in which the 0B2 channel carrying the service data is coupled into the fiber of the C3 convergence network and connected to the N1 0.
  • the synchronization processing module 12 and the control module 11 in the edge node C3N10 perform synchronization processing on the 0B channels of multiple wavelengths in the optical fiber from C3, and the specific synchronization processing method and the node embodiment 2 The same, will not be described in detail here.
  • the branching device in the wavelength crossing unit 1 31 of the C3N10 performs demultiplexing processing on the plurality of wavelengths in the optical fiber from the C3 that are subjected to the synchronization processing, by controlling the splitter and the optical switch in the optical burst crossing unit 1 32.
  • the branching device in the wavelength crossing unit 1 31 of the C3N10 performs demultiplexing processing on the plurality of wavelengths in the optical fiber from the C3 that are subjected to the synchronization processing, by controlling the splitter and the optical switch in the optical burst crossing unit 1 32.
  • For processing 0B on each wavelength take out the 0B that the node needs to receive, that is, the local downlink 0B, which includes 0 ⁇ 2 on the ⁇ ⁇ carrying the service data, and 0 ⁇ 2 and other need to go down locally.
  • the burst receiver 19 After being coupled by the coupler, it is sent to the burst receiver 19, and the burst receiver 19 photoelectrically converts the local downlink 0 ⁇ , and then sends it to the optical burst framing module 18, and the optical burst framing module 18 pairs
  • the received data is processed to generate a burst container encapsulating the service data
  • the burst container adapting module 17 encapsulates the burst container encapsulating the service data to generate service data, where the service data includes the service data carried by the channel 02.
  • the client-side service processing module 16 performs detection processing and forwarding processing on the service data, and further includes an adaptation process, and finally completes the service data on the channel 0-2 under C3N10.
  • Process i.e., to achieve a convergence of C3 C3N10 network service data is transmitted from the aggregation network C2N1 on channel C2 via 0 ⁇ 2 to 1 ⁇ .
  • the bearer service data may also be multiple OB channels on one wavelength
  • the process of synchronization processing and cross-connection processing is similar to the process of synchronous processing and cross-connection processing of an OB channel carrying traffic data at one wavelength.
  • the only difference is that the edge node C2N1 is on the road.
  • the service data and the service data of the edge node C 3N10 are carried on multiple 0B channels on one wavelength. The specific synchronization processing and cross-connection processing are not described in detail here.
  • the bearer service data may also be an OB channel composed of 0B at the same position on multiple wavelengths or a plurality of OB channels composed of 0Bs of multiple corresponding positions at multiple wavelengths.
  • the edge nodes C2N1 and C3N10 may adopt the nodes in FIG. 5, and the cross-connect module may use the cross-connect module in FIG. 8 to perform cross-connection processing on the 0B channel carrying the service data to complete the service data on the C2N1 and C3N10.
  • the specific processing procedure of the downlink process is the same as that in the node embodiment 2, and will not be described in detail herein.
  • FIG. 8 When carrying the service data is a 0B channel composed of the same position 0B on all wavelengths on one optical fiber or a plurality of corresponding 0B channels composed of the same position 0B on all wavelengths on one optical fiber, FIG. 8
  • the wavelength crossover unit 1 31 can be simplified, without the need for a band filter and a band multiplexer, but in this case a coupler is needed to couple the local OB channel into the fiber.
  • the nodes are connected through the 0B channel, that is, the service data is transmitted through the 0B channel, and the port of the node includes multiple 0B channels, so that the node can connect more nodes through the 0B channel, and the number of nodes is increased.
  • the number of available connections of the node, and for one node, the number of node ports can be reduced in the case of the same number of connections, thereby reducing the size, power consumption, and cost of the node device;
  • 0B channel can be configured, relatively fixed
  • the node, including the edge node and the core node, can cross-connect the 0B channel through the configuration information, thereby avoiding the data collision problem caused by the lack of the optical buffer in the all-optical switching; the node, especially the core node performing the 0B channel
  • the synchronization and cross-connection processing is completed in the optical layer, which reduces the photoelectric, electro-optical conversion and electrical processing processes, reduces the power consumption, volume and cost of the node, reduces the capital cost and operation cost of the communication network, and is suitable for building large Capacity network to adapt to the fast-growing data industry Transmission needs.
  • the data processing system includes four nodes, and the service data is transmitted between the nodes by using the 0B channel on one or more wavelengths, wherein the four nodes are also used to perform 0B on one or more wavelengths carrying the service data.
  • a node that performs synchronization processing and cross-connection processing may be the core node C2 in the core network, the edge node C2N1 in the aggregation network corresponding to the core node C2, the core node C3 in the core network, and the edge node C in the aggregation network corresponding to the core node C3. 3N10.
  • the edge nodes C2N1 and C3N1 0 can adopt the nodes in FIG. 11. As shown in FIG. 11, the specific structures of the edge nodes C2N1 and C3N10 and the functions of the structures are the same as those in the fourth embodiment, and are not described here.
  • the core nodes C2 and C3 can use the nodes in FIG. 14. As shown in FIG. 14, the specific structures of the core nodes C2 and C3 and the functions of the structures are the same as those in the node embodiment 6, and will not be described in detail herein.
  • the cross-connect modules in the edge nodes C2N1 and C3N10 in the data processing system may adopt the crossover in FIG.
  • the connection module as shown in FIG. 12, includes a wavelength crossing unit 1 31, and the wavelength crossing unit 1 31 is composed of a TFF and a coupler.
  • the core nodes C2 and C3 in the data processing system may adopt the cross-connect module in FIG. 16, as shown in FIG. 16, the cross-connect module includes only the wavelength cross unit 1 31, and the wavelength cross unit 1 31 is separated by a splitter and a combiner. And the coupler.
  • the service data needs to be sent from the C2N1 in the C2 aggregation network to the C3N10 in the C3 aggregation network.
  • the service data needs to pass through C2N1, C2, C3, and C3N10 in sequence, and is carried by a 0B channel on one wavelength.
  • this implementation In the example, it is set to 0 ⁇ 2 channel on ⁇ 1.
  • the data processing system In the service data transmission process, the data processing system needs to perform synchronization processing and cross-connection processing on the 0-channel carrying the service data, so as to implement the process of the uplink, the punch-through, and the downlink of the 0 ⁇ corresponding to the 0 ⁇ channel, thereby completing the service data. Transfer.
  • the edge node C2N1 completes the service data that needs to be sent to the C3N10 through the client side service processing module 16, the burst container adaptation module 17, the optical burst framing module 18, and the burst transmitter 20.
  • the client side service processing module 16 receives the service to be sent
  • the data, and the detection processing and forwarding processing of the service may further include an adaptation processing or a convergence processing, and the processed service data is sent to the burst container adaptation module 17.
  • the burst container adaptation module 17 encapsulates the business data into a burst container.
  • the new OB frame header clock and the new OB slot clock generated by the optical burst framing module 18 according to the C2N1 synchronization process adapt the burst container encapsulating the service data to 0B, which is 0B2 on the ⁇ ⁇ in this embodiment.
  • the optical burst framing module 18 also assembles 0 ⁇ 2 and 0 ⁇ in the 0 ⁇ channel sent to other edge nodes into a 0 ⁇ frame, and the 0 ⁇ frame has a wavelength of ⁇ 1.
  • the burst transmitter 20 transmits the 0 ⁇ frame in which 0 ⁇ 2 is located to the wavelength crossing unit 1 31, thereby completing the uplink process of the service data in C2N1.
  • the coupler in the wavelength crossing unit 1 31 directly couples the wavelength at which the 0 ⁇ 2 channel is located into the fiber and sends it to the core node C2.
  • the core node C2 receives the 0B channel from the 0B channel and other core node fibers in the convergence network fiber, and performs synchronization processing on the 0B channel in all the fibers, and the synchronization process is performed by multiple
  • the synchronization processing module 12 and the control module 11 are completed, and the specific synchronization processing method is the same as that in the node embodiment 6, and will not be described in detail herein.
  • the splitter in the wavelength crossing unit 1 31 demultiplexes the wavelength from the C2 convergence network fiber, and combines the wavelength ⁇ ⁇ of the 0B2 channel and other wavelengths that need to be sent to C 3 through the combiner. And sent to C3.
  • C3 synchronizes the 0B channel on the wavelength of all the access fibers.
  • the specific synchronization processing method is the same as that in the node embodiment 6, and will not be described in detail here.
  • the wavelength crossing unit 1 31 of C3 directly couples the C2 access fiber into the C3 convergence network fiber, and couples the fiber where the 0B2 channel carrying the service data is coupled into the C3N10 fiber in the C3 aggregation network. As shown in FIG. 11 and FIG.
  • the synchronization processing module 12 and the control module 11 in the edge node C3N10 perform synchronization processing on the 0B channels of multiple wavelengths in the optical fiber from C3, and the specific synchronization processing method and node embodiment 6 Same in the middle, not described in detail here.
  • the TFF in the wavelength crossing unit 1 31 of C3N10 filters out ⁇ 1 from a plurality of wavelengths in the optical fiber, and transmits it to the burst receiver 19, that is, the 0 ⁇ channel on ⁇ 1 is sent to the burst receiver 19,
  • the channel includes the 0 ⁇ 2 channel carrying the service data, and the burst receiver 19 performs photoelectric conversion on the 0 ⁇ corresponding to the 0 ⁇ channel of the local downlink, and then sends the signal to the optical burst framing module 18, and the optical burst framing module 18 receives the received signal.
  • the burst container adaptation module 17 encapsulates the burst container encapsulating the service data to generate service data
  • the service data includes the service data carried by the 0B2 channel
  • the client side service processing module 16 detects and processes the service data. Forwarding processing, further, the service data may be adapted, and finally the process of the service data on the 0B2 channel is completed in the N10, that is, the service data is transmitted from the C2 aggregation network through the 0 ⁇ 2 channel on the ⁇ 1.
  • the C2N1 is sent to the C3N10 in the C3 aggregation network.
  • the bearer service data may also be multiple OB channels on one wavelength
  • the process of synchronization processing and cross-connection processing is similar to the process of synchronous processing and cross-connection processing of an OB channel carrying traffic data at one wavelength.
  • the difference is that the service data on the edge node C2N1 and the service data on the edge node C 3N10 are carried on multiple 0B channels on one wavelength.
  • the specific synchronization processing and cross-connection processing are no longer here. A detailed description.
  • the nodes are connected through the 0B channel, and the port of the node includes multiple 0B channels, so that the node can connect more nodes through the 0B channel, increasing the number of available connections of the node, and simultaneously For the node, in the case of the same number of connections, the number of node ports can be reduced, thereby reducing the size, power consumption, and cost of the node device.
  • the 0B channel carrying the service data can be configured, relatively fixed, and the node can be 0B.
  • the channel is cross-connected, which avoids the problem of data collision in the optical layer due to the lack of optical buffer in all-optical switching.
  • the synchronization and cross-connection processing of the node to the 0B channel is completed in the optical layer, which reduces the photoelectric and electro-optical light. Conversion and electrical processing reduce the power, size, and cost of the node.
  • the data processing system includes two nodes, at which time the two nodes serve as the source node and the destination node, respectively, and only one OB channel on one wavelength is used to transmit the service between the nodes.
  • Data, the 0B channel carrying the service data is on the source node, and after being sent to the destination node, the destination node is taken off, thereby completing the transmission process of the service data.
  • the two nodes in the data processing system do not need to perform synchronization processing and cross-connection processing on the 0B channel, and only need to complete the uplink and downlink of the 0B channel to realize the transmission of service data.
  • the embodiment of the invention provides a data processing method, which specifically includes: Generating synchronization information and optical burst configuration information;
  • the generating synchronization information and the optical burst configuration information may be: detecting an optical burst frame header clock from the pre-separated signal; performing frequency locking processing, delay processing, and phase locking on the optical burst frame header clock Processing, the synchronization information includes at least an optical burst frame header clock and a new optical burst frame header clock; generating a new optical burst slot clock based on a start position of the new optical burst frame header clock; according to a preset optical burst channel
  • the configuration information and the new optical burst frame header clock and the generated new optical burst slot clock generate optical burst configuration information.
  • the generating synchronization information and the optical burst configuration information may further be: detecting an optical burst frame header clock and an optical burst slot clock from the pre-separated signals; and the optical burst frame header clock and the optical burst slot The clock performs frequency-locking processing and delay processing to generate a new optical burst frame header clock and a new optical burst.
  • the synchronization information includes at least an optical burst frame header clock and a new optical burst frame header clock; according to a preset optical burst channel configuration. The information and the new optical burst frame header clock and the new optical burst slot clock generate optical burst configuration information.
  • the synchronizing the optical burst channels on the one or more wavelengths according to the synchronization information specifically includes: generating array control information according to the optical burst frame header clock and the new optical burst frame header clock;
  • the array control information configures an optical delay array, and the optical burst channels of the one or more wavelengths are synchronized by the optical delay array.
  • the performing the cross-connection processing on the optical burst channel after the synchronization processing according to the optical burst configuration information may be: performing cross-connection processing on the optical fiber where the synchronous optical burst channel is located according to the optical burst configuration information .
  • the processing may further be: performing cross-connection processing on the wavelength of the optical burst channel after the synchronization process according to the optical burst configuration information.
  • the cross-connecting processing of the synchronized optical burst channel according to the optical burst configuration information may further include: performing cross-connection processing on the synchronized optical burst channel according to the optical burst configuration information.
  • the performing the cross-connection processing on the synchronized optical burst channel according to the optical burst configuration information may further be: performing cross-connection on the wavelength of the synchronized optical burst channel according to the optical burst configuration information Processing and performing cross-connection processing on the synchronized optical burst channel according to the optical burst configuration information.
  • a phase relationship in which the frame headers of the optical burst frames at different wavelengths may be aligned; or, the simultaneously processed optical bursts at the same position on different wavelengths maintain a relatively fixed phase relationship, wherein the same position at different wavelengths
  • the light bursts can be aligned.
  • the process of the synchronization process specifically includes: aligning the frame headers of the optical burst frames on different wavelengths; or aligning the light bursts of the same location on different wavelengths.
  • the embodiment of the present invention further provides a data processing method, which specifically includes: connecting, by using, an optical burst channel on one or more wavelengths, the node transmits the service data through the optical burst channel.
  • the method further includes: the node performing synchronization processing and cross-connection processing on the optical burst channel on one or more wavelengths carrying the service data.
  • the synchronizing processing and the cross-connection processing of the optical burst channel on one or more wavelengths carrying the service data by the node may be: generating synchronization information and optical burst configuration information; and one or more according to the synchronization information
  • the optical burst channel on the wavelength is synchronized; and the optical burst channel after the synchronization is cross-connected according to the optical burst configuration information.
  • a phase relationship in which the frame headers of the optical burst frames at different wavelengths may be aligned; or Light bursts at the same location on different wavelengths of the over-synchronized process maintain a relatively fixed phase relationship, wherein light bursts of the same location at different wavelengths may be aligned.
  • the process of the synchronization process specifically includes: aligning the frame headers of the optical burst frames on different wavelengths; or aligning the light bursts at the same position on different wavelengths.
  • the nodes are connected through the 0B channel, and the port of the node includes multiple 0B channels, so that the node can connect more nodes through the 0B channel, increasing the number of available connections of the node, and simultaneously For a node, the number of node ports can be reduced in the case of the same number of connections, thereby reducing the size, power consumption, and cost of the node device.
  • the 0B channel carrying the service data can be configured and relatively fixed.
  • the node can cross-connect the 0B channel, which avoids the problem of data collision in the optical layer due to the lack of optical buffer in all-optical switching.
  • the synchronization and cross-connection processing performed by the node on the 0B channel is completed in the optical layer, which reduces the photoelectric, electro-optical conversion and electrical processing processes, and reduces the power consumption, volume and cost of the node.

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Description

节点、 数据处理系统和数据处理方法 技术领域
本发明实施例涉及通信领域， 特别涉及一种节点、 数据处理系统和数据 处理方法。 背景技术
通信网络中的节点按其功能可分为源节点、 目的节点和中间节点。 源节 点是充当信源发送业务数据的节点， 目的节点是充当宿源接收业务数据的节 点， 中间节点是转发业务数据的节点。 换言之， 有业务数据上路的节点可以 称为源节点， 有业务数据下路的节点可以称为目的节点。 通信网络主要由上 层的数据通信网络和下层的传送网络组成。 通信网络按照网络拓朴结构可分 为核心网络和汇聚网络， 位于核心网络中的节点可称为核心节点， 位于汇聚 网络中的节点可称为边缘节点。 核心节点主要由上层的数据通信网络中的核 心路由器以及下层的传送网络中的波长分叉复用设备组成。 边缘节点主要由 上层的数据通信网络中的边缘路由器以及下层的传送网络中的波长分叉复用 设备组成。 例如， 上述通信网络中的边缘节点和核心节点当有业务上路和下 路时可分别作为源节点和目的节点， 当没有业务上路和下路时可作为中间节 点。 在上述通信网络中通常边缘节点是作为源节点和目的节点， 而核心节点 是作为中间节点。 随着高宽带业务的兴起和宽带用户数量的增长， 通信网络 中的网络流量呈指数增长， 导致对节点中的路由器容量和功耗的要求越来越 高。 目前， 为了支持通信网络中的业务数据传送， 路由器的容量和功耗都已 经发展到了无法承受的地步， 并且资金花费和运作花费高昂。 因此， 降低节 点中路由器的容量和功耗，即降低节点的容量和功耗，尤其是降低节点的功耗 是当前亟待解决的问题。
针对上述问题， 现有技术一提出了一种解决方案。 现有技术一是在通信 网络中， 节点， 尤其是核心节点， 利用波长交叉连接设备或 0TN交叉连接设 备代替原有的波长分插复用设备。 此方案中非本地下路的业务数据经过节点 时可以直接在波长层或 0DU层穿通， 由于节点的波长交叉连接设备或 0TN交 叉连接设备的电处理效率高， 因此， 现有技术一的技术方案可以在某种程度 上降低节点的功耗， 尤其是降低核心节点的功耗。
针对上述问题， 现有技术二提出了另一种解决方案， 即全光交换技术， 例如， 光突发交换（Opt i ca l Bur s t Swi tch )技术。 OBS 技术的主要思想是 使光突发通道与控制通道在物理上分离， 分别传送光突发数据和控制通道， 节点仅对控制通道进行电处理， 根据控制通道中携带的信息为即将到来的光 突发数据预留资源， 使光突发数据经过节点时无需进行光电转换， 可直接在 光层实现传送和交换， 从而减少了节点的电处理过程， 降低了节点的功耗。
但是， 在实现本发明过程中， 发明人发现现有技术中至少存在如下问题： 现有技术一中的技术方案中由于业务数据在节点穿通的波长层或 0DU层 的颗粒大， 因此采用波长或者 0DU路径连接节点的带宽过大， 采用波长或者 0DU路径连接节点相当于在节点间提供了直达的路径， 尤其是在边缘节点间。 该路径的数量近似与节点的数量呈平方关系 （n* (n-l) /2 , n为节点的路由器 数量） 。 当节点需要连接更多的节点时， 需要的路径数量庞大， 需要的连接 数增加， 并且节点需要提供更多的端口来连接更多的节点， 这导致节点的体 积、 功耗和成本增大。
现有技术二虽然降低了节点的功耗， 但由于光突发交换技术缺乏合适的 光緩存器， 使得数据在 0BS系统中传输时容易在光层产生冲突。 发明内容
本发明实施例提供了一种节点、 数据处理系统和数据处理方法， 克服了 现有技术中节点的体积、 功耗和成本大以及全光交换中光层产生数据冲突的 缺陷， 从而降低了节点的体积、 功耗和成本以及避免了全光交换中光层产生 数据冲突的问题。
本发明实施例提供了一种节点， 包括：
控制模块， 用于生成同步信息和光突发配置信息；
至少一个同步处理模块， 用于根据所述同步信息对一个或多个波长上的 光突发通道进行同步处理；
交叉连接模块， 用于根据所述光突发配置信息对同步处理后的光突发通 道进行交叉连接处理。
本发明实施例还提供了一种数据处理系统， 包括： 至少二个节点， 所述 节点间采用一个或多个波长上的光突发通道进行连接， 所述节点将业务数据 通过所述光突发通道进行传送， 所述节点还用于对承载业务数据的一个或多 个波长上的光突发通道进行同步处理和交叉连接处理， 所述节点包括：
控制模块， 用于生成同步信息和光突发配置信息；
至少一个同步处理模块， 用于根据所述同步信息对一个或多个波长上的 光突发通道进行同步处理；
交叉连接模块， 用于根据所述光突发配置信息对同步处理后的光突发通 道进行交叉连接处理。
本发明实施例还提供了一种数据处理方法， 包括： 生成同步信息和光突 发配置信息； 根据所述同步信息对一个或多个波长上的光突发通道进行同步 处理； 根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接处 理。
本发明实施例的技术方案中， 通过在一个波长上划分多个 0B通道， 使数 据处理系统的节点间可通过 0B通道来传送业务数据，从而降低了节点间的连 接带宽， 节点的端口上可包括多个 0B通道， 使节点可以通过多个 0B通道连 接更多的节点， 增加了节点的可用连接数， 同时对于一个节点而言， 在连接 数相同的情况下， 可以减少节点端口的数量， 从而降低了节点的体积、 功耗 以及成本。 0B通道可以是配置的， 相对固定， 节点通过光突发配置信息对 0B 通道进行交叉连接处理， 避免了全光交换中由于缺乏光緩存器而在光层产生 数据冲突的问题。 节点对 0B 通道进行的同步和交叉连接处理是在光层完成 的， 减少了光电、 电光转换以及电处理过程， 降低了节点的功耗、 体积以及 成本。 附图说明
图 1为本发明实施例中通信网络的结构示意图；
图 2为本发明实施例中 0B通道的结构示意图；
图 3为本发明实施例中 0B的物理格式示意图；
图 4为本发明节点实施例一的结构示意图；
图 5为本发明节点实施例二的结构示意图；
图 6为本发明节点实施例二中控制通道与 0B通道的时序关系图； 图 7为本发明节点中交叉连接模块的结构示意图之一；
图 8为本发明节点中交叉连接模块的结构示意图之二；
图 9为本发明节点实施例三的结构示意图；
图 10为本发明节点实施例三中控制通道与 0B通道的时序关系图； 图 11为本发明节点实施例四的结构示意图；
图 12为本发明节点中交叉连接模块的结构示意图之三；
图 1 3为本发明节点实施例五的结构示意图；
图 14为本发明节点实施例六的结构示意图；
图 15为本发明节点实施例四中光功率包络信号与 0B时隙时钟的示意图； 图 16为本发明节点中交叉连接模块的结构示意图之四；
图 17为本发明节点中交叉连接模块的结构示意图之五；
图 18为本发明节点实施例七的结构示意图。 具体实施方式 下面通过附图和实施例， 对本发明实施例的技术方案做进一步的详细描 述。
为能更清楚的描述本发明实施例中的节点、 数据处理系统和数据处理方 法， 本发明实施例以一个通信网络为例， 但此通信网络不应成为对本发明的 限制。
图 1为本发明实施例中通信网络的结构示意图， 如图 1所示， 该通信网 络由核心网络和汇聚网络组成， 核心网络包括节点 Cl、 C2、 C3和 C4 , Cl、 C2、 C3和 C4作为核心节点； Cl、 C2、 C3和 C4分别对应一个汇聚网络， 汇聚 网络包括多个节点， 例如， C1 对应的汇聚网络中包括节点 C1N1、 C1N2 ... ... C1N10, C1N C1N2... ... C1N10作为边缘节点。在本发明实施例的技术方案中， 通信网络的节点间是通过光突发（Opt ica l Bur s t , 以下简称 0B )通道来传 送业务数据的， 节点间是通过 0B通道连接的， 0B通道为在光纤的一个或者 多个波长上划分出的子波长通道， 0B通道的传输实体为 0B。 节点通过对承载 业务数据的 0B通道对应的 0B进行处理， 从而实现对 0B通道的处理。
图 2为本发明实施例中 0B通道的结构示意图， 如图 2所示， 例如， 一根 光纤包括多个波长 λ 1、 λ 2…… λ ηι, 在 λ 1、 λ 2…… λ ηι上分别划分出数个 时隙， 称为 0Β时隙， t2为 0Β时隙的长度； 0B时隙中的有效载荷为 OB, 0B 长度为 t l , 在 t l时间内激光器开启时才可能有数据传输； t 3为保护时间， 保护时间主要指 0B发送、 接收以及切换时， 光器件开启、 关闭所需的时间。 多个 0B时隙组成一帧， 称为 0B帧， T为帧周期， 图中所示为 0B1至 OBn组 成一帧。 换言之， 0B按照周期性发送， 同一周期发送的 0B形成 0B帧。 在一 个波长中， 以 T为单位周期性发送 0B帧。 其中 0B1、 0B2…… OBn的长度可以 相同， 也可以不同， 即划分的 0B时隙的长度可以相同， 也可以不同。 不同周 期同一位置的 0B组成一个 0B通道，例如 0B1通道、 0B2通道 ... ... OBn通道等。 首先业务数据会被适配成 0B, 因为业务数据是分组传送的， 所以业务数据按 分组适配成多个 0B, 这些 0B再以时间间隔 T进行传送， 从而完成整个业务 数据的传送， 这些以时间间隔 T进行传送的 OB就组成了 OB通道。 例如， 业 务数据被适配成多个 OBI , 0B1再以时间间隔 T进行传送， 这些以时间间隔 T 进行传送的 0B1就组成了 0B1通道， 多个 0B1承载业务数据， 即 0B1通道承 载该业务数据。 承载业务数据的 0B通道可以是一个波长上的 0B通道， 例如 λ 1上的 0B1通道； 可以是一个波长上的多个 0Β组成的通道， 例如 λ 1上的 0Β1、 0Β2和 0Β3组成的 0Β通道； 也可以是多个波长上的对应的同一位置上 的 0Β组成的 0Β通道， 例如， 可以是一根光纤中部分波长上的 0B1或者是所 有波长上的 0B1组成的通道； 还可以是多个波长上的多个对应的同一位置上 的 0Β组成的 0Β通道， 例如， 可以是一才艮光纤中部分波长上的 0B1和 0Β2组 成的 0Β通道或者是所有波长上的 0B1和 0Β2组成的通道。
图 1中的节点间是通过 0Β通道连接的， 例如， 图 1中示出三个 0Β通道， 分别为连接 C2N1和 C3N10的 λ 1上的 0Β2通道、连接 C1N10和 C3N1的 λ 1上 的 0Β3通道以及连接 C1N10和 C3N2的 λ 2上的 0Β2通道。 例如， 从 C2N1发 往 C3N10的业务数据采用 λ 1上的 0Β2通道 载。
图 3为本发明实施例中 0Β的物理格式示意图， 如图 3所示， 一个 0Β主 要包括功率锁定、 定时、 定界、 开销和净荷。 其中， 功率锁定用于突发接收 机锁定 0Β的功率， 定时用于突发接收机锁定 0Β的时钟， 定界用于定出 0Β的 边界， 0Β开销中包含有 0Β通道的信息， 净荷承载的是 0Β的净荷。 需要说明 的是： 功率锁定、 定时和定界也可以作为开销的一部分， 则此时 0Β主要包括 开销和净荷。 功率锁定和定时也可以合称为前导。 0Β通道可以配置， 具体可 以采用静态配置或动态配置。 其中静态配置可以为手工配置， 通过命令行或 者网络管理平面进行配置；动态配置可以通过控制平面协议或其他控制协议、 算法进行自动配置， 例如基于控制平面协议通用多协议标志交换协议 ( Genera l i zed Mul t iprotocol Labe l Swi tching , 简称 GMPLS )或自动交换 光网络 ( Automa t ic Swi tch Opt i ca l Network, 简称 AS0N )进行自动酉己置。 需要说明的是， 0B通道配置更改时， 其持续时间并没有限定， 即极端情况下， 一个 OB通道也可能只持续了一帧的时间。 在这种情况下， 可以通过一些控制 协议实现带宽的动态复用。
本发明实施例通过在一个波长上划分多个 0B通道， 节点间可通过 0B通 道来传送业务数据。 0B通道的带宽小， 降低了节点间的连接带宽， 节点的端 口上包括多个 0B通道， 使节点可以通过 0B通道连接更多的节点， 增加了节 点的可用连接数， 同时对于一个节点而言， 在连接数相同的情况下， 可以减 少节点端口的数量， 从而降低了节点的体积、 功耗以及成本。 由于不同的 0B 通道时间上是分离的， 相互独立， 因此一个 0B通道的配置变更不会影响其他 0B通道， 使 0B通道配置变更更安全， 有利于实现 0B通道的动态配置。
图 4为本发明节点实施例一的结构示意图， 如图 4所示， 节点包括控制 模块 1 1、 同步处理模块 12和交叉连接模块 1 3。 控制模块 11用于生成同步信 息， 并将同步信息发送到同步处理模块 12 ; 控制模块 11还用于生成光突发 配置信息， 并将光突发配置信息发送到交叉连接模块 1 3。 同步处理模块 12 才艮据同步信息对一个或多个波长上的 0B通道进行同步处理，并将同步处理后 的 0B通道发送到交叉连接模块 1 3。 交叉连接模块 1 3根据光突发配置信息对 同步处理后的 0B通道进行交叉连接处理。 本实施例中同步处理模块 12可以 为一个或多个， 图 4中只示出一个。
本实施例中的节点的端口上包括多个 0B通道， 节点可以通过多个 0B通 道连接更多的节点， 增加了节点的可用连接数， 同时对于一个节点而言， 在 连接数相同的情况下， 可以减少节点端口的数量， 从而降低了节点的体积、 功耗以及成本。 本实施例中 0B通道可以是配置的， 相对固定， 节点可通过光 突发配置信息对 0B通道进行交叉连接处理，避免了全光交换中由于缺乏光緩 存器而在光层产生数据冲突的问题 。 本实施例中的节点对 0B通道进行的同 步和交叉连接处理是在光层完成的， 减少了光电、 电光转换以及电处理过程， 降低了节点的功耗。
图 5为本发明节点实施例二的结构示意图， 如图 5所示， 节点包括控制 模块 11、 同步处理模块 12和交叉连接模块 13。 控制模块 11 包括检测单元 111、 生成单元 112、 配置信息生成单元 113。 其中， 检测单元 111用于从预 先分离的信号中检测出 0B帧头时钟和 0B时隙时钟，并将 0B帧头时钟发送给 同步处理模块 12 , 本实施例中预先分离的信号为控制通道； 生成单元 112用 于对 0B帧头时钟和 0B时隙时钟进行锁频处理和延时处理生成新 0B帧头时钟 和新 0B时隙时钟， 并将新 0B帧头时钟发送给同步处理模块 12 , 进一步地， 生成单元 112还可以对 0B帧头时钟和 0B时隙时钟进行滤波处理和锁相处理； 配置信息生成单元 113 , 用于根据预先设置的光突发通道配置信息以及新 0B 帧头时钟和新 0B时隙时钟生成光突发配置信息，并将光突发配置信息发送给 交叉连接模块 13 , 本实施例中光突发通道配置信息包括连接节点的 0B通道 的信息， 即包括节点间通过一个或多个 0B通道进行连接的信息。 而光突发配 置信息在光突发通道配置信息的基础上还包括各个 0B通道的时序关系，即在 交叉连接处理过程中交叉连接模块 13根据光突发配置信息对组成 0B通道的 0B进行交叉连接处理， 从而实现对 0B通道的交叉连接处理。 同步处理模块 12包括阵列控制单元 121和阵列单元 122 ,阵列控制单元 121用于根据 0B帧 头时钟和新 0B帧头时钟生成阵列控制信息，阵列单元 122用于根据阵列控制 信息配置光延时阵列，通过光延时阵列对一个或多个波长中的 0B通道进行同 步处理， 并将同步处理后的 0B通道发送给交叉连接模块 13。 本实施例中交 叉连接模块 13包括波长交叉单元 131和光突发交叉单元 132 , 波长交叉单元 131用于根据光突发配置信息对同步处理后的 0B通道所在的波长进行交叉连 接处理；光突发交叉单元 132用于根据光突发配置信息对同步处理后的 0B通 道进行交叉连接处理。
节点还包括第一薄膜滤波器（Thin-F i lm F i l ter , 简称： TFF ) 26、 接 收机 24、 控制通道处理模块 14、 控制通道生成模块 15、 发射机 25和第二薄 膜滤波器 27。 其中， 第一薄膜滤波器 26从光纤中预先分离出控制通道， 并 将控制通道发送到接收机 24; 接收机 24用于将接收到的控制通道进行光电 转换， 并将转换后的控制通道发送到控制通道处理模块 14 , 控制通道处理模 块 14用于从控制通道中提取控制通道信息， 控制通道生成模块 15用于对控 制通道信息进行更新处理， 根据更新后的控制通道信息以新 0B帧头时钟、新 0B时隙时钟为基准生成新控制通道； 发射机 25用于将接收到的新控制通道 进行电光转换；第二薄膜滤波器 27用于将经过电光转换的新控制通道耦合进 光纤中。 进一步地， 控制通道处理模块 14在提取出控制通道信息后还可以生 成处理完成信息，处理完成信息可作为生成单元 1 12生成新 0B帧头时钟和新 0B时隙时钟时延时处理的基准之一。
节点还包括客户侧业务处理模块 16、 突发容器适配模块 17和光突发成 帧模块 18。 客户侧业务处理模块 16用于对业务数据进行检测处理和转发处 理， 进一步地， 客户侧业务处理模块 16还可以对业务数据进行适配处理或汇 聚处理； 突发容器适配模块 17用于将处理后的业务数据封装进突发容器或者 对封装进突发容器的业务数据进行解封装生成业务数据， 具体地， 突发容器 主要用于完成适配业务信号和 0B的速率差等功能， 根据实际应用的不同， 突 发容器可包括不同层次的容器；光突发成帧模块 18用于根据新 0B帧头时钟、 新 0B时隙时钟将封装有业务数据的突发容器适配成 0B或者对接收到的 0B进 行处理生成封装有业务数据的突发容器。节点还包括突发接收机 19和突发发 射机 20 , 突发接收机 19用于将经过交叉连接处理的 0B进行光电转换， 并发 送给光突发成帧模块 18 , 突发发射机 20用于将光突发成帧模块 18适配成的 0B进行电光转换， 并发送到交叉连接模块 1 3。
进一步地， 该节点还可以包括第一故障检测模块 21、 第二故障检测模块 22和故障监测模块 23 , 第一故障检测模块 21用于检测所述光突发交叉单元 1 32的输入波长的光功率， 第二故障检测模块 22用于检测所述光突发交叉单 元 1 32的输出波长的光功率， 故障监测模块 23用于根据输入波长的光功率、 输出波长的光功率和光突发配置信息生成光突发通道故障信息， 光突发通道 故障信息用于监测进入和经过所述光突发交叉单元 1 32 的光突发通道的故 障， 以实现对光突发通道故障的监测。
另外， 节点还可以包括光纤放大器 28 , 用于对接收到的光纤中的信号进 行光放大， 例如可以为掺铒光纤放大器 ( Erbium-doped Opt ica l Fiber Amp l ifer , 简称 EDFA ) 。
本实施例中的节点需要对 OB通道进行同步处理， 0B通道的同步处理包 括 0B时隙的同步和 0B帧的同步。 首先可以在每根光纤中指定一个波长作为 控制通道， 并由第一薄膜滤波器 26将该波长从输入波长中分离出来， 也就是 说由第一薄膜滤波器 26 预先将控制通道分离出来， 该控制通道经过接收机 24 的光电转换后被发送到控制通道处理模块 14 , 该控制通道的信号包括 0B 帧标识和 0B时隙标识。在本实施例的节点中需要通过该控制通道实现一个或 多个波长中 0B通道的同步。
图 6为本发明节点实施例二中控制通道与 0B通道的时序关系图， 如图 6 所示， 控制通道主要包括 0B帧标识、 0B时隙标识以及净荷， 其中 0B帧标识 表示 0B帧开始位置， 同时表示 0B1时隙开始位置， 0B时隙标识标识每个 0B 时隙开始位置， 净荷承载时钟信息以及其它管理维护信息。 控制通道主要有 几大作用： 一是传送时钟信息， 二是传送 0B通道的同步信息， 三是传送维护 管理信息。 每个节点锁定控制通道的时钟作为业务时钟， 时钟的优先级等时 钟维护信息由控制通道净荷承载， 维护管理信息承载在控制通道净荷中。 在 每根光纤中， 0B通道和控制通道保持同步， 即每个 0B时隙对齐控制通道的 相应的 0B时隙标识以及 0B帧对齐控制通道中的 0B帧标识，例如 λ 1上的 0B 通道对应的 0Β2与控制通道 λ c中的 0Β2时隙标识对齐， λ 1中的 0Β帧与控 制通道 A c中的 0B帧标识对齐。 由于控制通道在节点会进行电处理， 存在延 时， 因此 0B通道需要进行光路延时， 以确保在节点出口处， 控制通道和 0B 通道继续保持同步。 因此，经过同步处理的不同波长上的 0B帧的帧头保持相 对固定的相位关系， 其中不同波长上的 0B帧的帧头可以是对齐的； 或者， 经 过同步处理的不同波长上同一位置的 0B保持相对固定的相位关系，其中不同 波长上同一位置的 OB可以是对齐的。 换言之， 同步处理的过程具体包括： 对 齐不同波长上的 0B帧的帧头； 或者， 对齐不同波长上的同一位置的 0B。
如图 5所示， 节点中 0B通道的同步处理是由控制模块 11和同步处理模 块 12配合完成的。检测单元 111从控制通道的 0B帧标识和 0B时隙标识中检 测出 0B帧头时钟和 0B时隙时钟， 并将 0B帧头时钟和 0B时隙时钟发送给生 成单元 112 ; 生成单元 112对 0B帧头时钟和 0B时隙时钟进行锁频和延时等 处理， 生成新 0B帧头时钟和新 0B时隙时钟， 其中延时处理以控制通道处理 模块 14生成的处理完成信息为基准， 并在此基 上再延迟一段时间。 此外， 生成单元 112还会同时监测处理完成信息， 如果处理完成信息的延时持续变 化而超过一定门限的话， 可以对生成的新 0B帧头时钟以及新 0B时隙时钟进 行调整； 阵列控制单元 121根据 0B帧头时钟和新 0B帧头时钟生成阵列控制 信息， 本实施例中阵列控制信息为计算出的 0B帧头时钟和新 0B帧头时钟的 时间差； 阵列单元 122根据阵列控制信息配置光延时阵列， 通过光延时阵列 对一个或多个波长的 0B通道进行同步处理， 本实施例中同步处理为对 0B通 道进行光路延时。 在进行同步处理的同时， 控制通道生成模块 15会根据控制 通道处理模块 14生成的控制通道信息进行更新处理，根据更新处理后的控制 通道信息以新 0B帧头时钟和新 0B帧头时钟为基准生成新控制通道； 新控制 通道经过发射机 25 电光转换后被发送到第二薄膜滤波器 27 , 并由第二薄膜 滤波器 27将其耦合进光纤中。 同时由于 0B通道进行了光路延时处理， 其在 经过交叉连接处理后将与耦合进光纤的新控制通道保持同步。
在对 0B通道进行同步处理之后需要对经过同步处理的 0B通道进行交叉连 接处理， 如图 5所示， 波长交叉单元 131用于根据光突发配置信息对同步处理 后的 0B通道所在的波长进行交叉连接处理， 光突发交叉单元 1 32用于根据光 突发配置信息对同步处理后的 0B通道进行交叉连接处理。当 0B通道为本地下 路的 0B通道时， 光突发交叉单元 1 32将该 0B通道对应的 0B发送到突发接收 机 19 , 突发接收机 19将接收到的 0B进行光电转换， 并发送给光突发成帧模 块 18 , 光突发成帧模块 18对接收到的 0B进行处理生成封装有业务数据的突 发容器， 突发容器适配模块 17对封装进突发容器的业务数据进行解封装生成 业务数据， 客户侧业务处理模块 16对该业务数据进行检测处理和转发处理， 进一步地， 还可以对该业务数据进行适配处理， 由此完成业务数据本地下路的 过程。 当节点有业务数据上路时， 客户侧业务处理模块 16对该业务数据进行 检测处理和转发处理， 进一步地， 客户侧业务处理模块 16还可以对该业务数 据进行适配处理或汇聚处理， 突发容器适配模块 17将经过处理的业务数据封 装进突发容器， 光突发成帧模块 18根据新 0B帧头时钟、 新 0B时隙时钟将封 装有业务数据的突发容器适配成 0B。 突发发射机 20将适配成的 0B进行电光 转换并发送到交叉连接模块 1 3 , 本实施例中突发发射机 20将适配成的 0B经 过电光转换并发送到波长交叉单元 1 31 , 从而完成业务数据的上路过程。
其中，根据通信网络中节点采用的突发接收机和突发发射机类型的不同， 节点中的交叉连接模块 1 3的结构和交叉连接处理过程会有所不同。 例如， 本 实施例中的节点可以为图 1 中核心节点 C2 对应的汇聚网络中的边缘节点 C2N1 ,且图 1中的所有边缘节点均采用固定波长的突发发射机 19和可调波长 的突发接收机 20 , 此时图 1中每个边缘节点均应只能以固定的波长发送业务 数据， 即在每个边缘节点上路的业务数据为以一个固定的波长发送， 此种情 况在图 1中未示出， 图 1中所示的节点间的多个承载业务数据的 0B通道仅是 用以说明节点间通过 0B通道传送业务数据的多种情况，而不是本实施例中节 点间承载业务数据的 0B通道的情况。
图 7为本发明节点中交叉连接模块的结构示意图之一， 如图 7所示， 交 叉连接模块包括波长交叉单元 1 31和光突发交叉单元 1 32 , 其中波长交叉单 元 1 31 包括分波器和合波器， 光突发交叉单元 1 32包括多个分路器、 多个光 开关和耦合器。因为该交叉连接模块连接的突发接收机 19为可调波长的突发 接收机， 所以突发接收机 19可接收不同波长上的 0B, 即发送自不同节点且 需要在本节点下路的 0B , 即接收需要在本地下路的 0B通道， 这就需要交叉 连接模块对接收到的多个波长上的 0B通道进行交叉连接处理。首先波长交叉 单元 1 31 中的分波器对接收到的波长进行分波处理， 然后通过控制光突发交 叉单元 1 32中的分路器和光开关， 对每个波长上的 0B通道对应的 0B进行处 理， 取出本节点需要接收到的 0B通道对应的 0B, 即本地下路的 0B通道对应 的 0B, 并将取出的不同的波长上的 0B经过耦合器耦合后发送到突发接收机 19 ,即光突发交叉单元 1 32通过对 0B通道对应的 0B进行处理以实现 0B通道 的下路过程， 将其余不需要本地下路的 0B通道所在的波长发送到合波器。 因 为本实施例中的突发发射机 20 为固定波长的突发发射机， 所以突发发射机 20需要以固定波长将本地上路的 0B通道对应的 0B发送到合波器以实现 0B 通道的上路。其中不需要本地下路的 0B通道可实现在交叉连接模块中直接穿 通， 即实现在节点的光层穿通， 无需进行光电、 电光转换以及复杂的电处理 过程。 图 7 中的交叉连接模块适用于发送自其它节点且需要在该节点下路的 业务数据承载在一个波长上的一个 0B通道或者一个波长上的多个 0B通道的 情况， 该节点的交叉连接模块取出一个波长上的一个 0B通道对应的 0B或者 一个波长上的多个 0B通道对应的 0B即完成该业务数据的下路过程。 当发送 自其它节点且需要在该节点下路的业务数据承载在多个波长上的同一位置 0B 组成的 0B通道时， 交叉连接模块的结构示意图可以如图 8所示。
图 8为本发明节点中交叉连接模块的结构示意图之二， 如图 8所示， 交 叉连接模块包括波长交叉单元 1 31和光突发交叉单元 1 32。 其中波长交叉单 元 1 31包括波带滤波器和波带合波器，光突发交叉单元 1 32包括多个分路器、 多个光开关和耦合器。因为在本节点下路的业务数据对应的 0B通道承载在多 个波长中， 所以波长交叉单元 1 31 中的波带滤波器需要对光纤中的波带进行 滤波处理， 将 0B通道对应的多个波长滤出， 然后通过控制光突发交叉单元 1 32中的分路器和光开关， 对承载 0B通道的多个波长进行处理， 取出本节点 需要接收到的多个波长上的 0B, 并将取出的多个波长上的 0B经过耦合后发 送到突发接收机 19。 本实施例中突发接收机 19 由分波器和突发接收阵列组 成，分波器对 OB通道所在的多个波长进行分波处理，并发送给突发接收阵列， 由突发接收阵列同时接收不同波长上的 0B, 从而完成承载在多个波长的 0B 通道上的业务数据的下路过程。不需要在本节点下路的 0B通道与本节点上路 的 0B通道均被发送到波带合波器。其中本节点上路的业务数据可以承载在多 个波长上同一位置的 0B组成的 0B通道上。 当发送自其它节点且需要在该节 点下路的业务数据承载在多个波长上的多个对应的同一位置的 0B 组成的多 个 0B通道时，其交叉连接模块的结构和功能与业务数据承载在多个波长上的 同一位置 0B组成的 0B通道时相同， 其业务数据的下路过程也与业务数据承 载在多个波长上的同一位置 0B组成的 0B通道时相似， 不同之处在于突发接 收阵列同时接收不同波长上的多个对应的同一位置的 0B, 从而完成业务数据 的下路过程。 图 8 中的交叉连接模块存在一种特例情况， 当需要在本节点下 路的业务数据承载在一根光纤上的所有波长上的同一位置 0B组成的 0B通道 或者承载在一根光纤上的所有波长上的多个对应的同一位置 0B组成的多个 0B通道时， 波长交叉单元 1 31可以简化， 不需要波带滤波器和波带合波器， 但此时需要一个耦合器将本地上路的 0B通道耦合进光纤中，光突发交叉单元 1 32包括分路器和光开关， 光突发交叉单元 1 32对承载在所有波长上的 0B通 道进行处理，取出该 0B通道中的 0B ,并将取出的 0B发送到光突发接收机 19。
图 9为本发明节点实施例三的结构示意图， 如图 9所示， 本实施例与实 施例二的区别在于控制模块 11不同， 本实施例中控制模块 11 包括检测单元 111、 生成单元 112、 配置信息生成单元 11 3和光突发时隙时钟生成模块 115。 检测单元 111用于从预先分离的信号中检测出 0B帧头时钟， 并将 0B帧头时 钟发送给同步处理模块 12 , 本实施例中预先分离的信号为控制通道； 生成单 元 112用于对 0B帧头时钟进行锁频处理和延时处理生成新 0B帧头时钟， 并 将新 0B帧头时钟发送给同步处理模块 12和光突发时隙时钟生成模块 115 , 进一步地， 生成单元 112还可以对 0B帧头时钟进行滤波处理和锁相处理； 光 突发时隙时钟生成模块 115用于以新 0B帧头时钟的开始位置为基准生成新 OB时隙时钟； 配置信息生成单元 11 3用于根据预先设置的光突发通道配置信 息以及新 0B帧头时钟和新 0B时隙时钟生成光突发配置信息， 并将光突发配 置信息发送给交叉连接模块 1 3。 本实施例与实施例二的区别在于， 新 0B时 隙时钟是由光突发时隙时钟生成模块 115生成的。 其余模块的功能与实施例 二中相同，此处不再赘述。本实施例通常用于 0B间的间隔长度（即保护时间 ) 较大的情况。
本实施例中， 由于 0B间的间隔长度较大， 因此节点对 0B通道进行同步 处理过程中， 0B通道的同步处理可仅包括 0B帧的同步， 0B时隙时钟由节点 根据生成的新 0B帧头时钟而生成（不同节点间由于时钟误差造成的 0B时隙 时钟的误差由 0B间的间隔吸收）。 具体地， 将 0B通道和控制通道保持同步， 即将 0B通道的 0B帧对齐控制通道中的 0B帧标识。
图 10为本发明节点实施例三中控制通道与 0B通道的时序关系图， 如图 10所示， 控制通道主要包括 0B帧标识以及净荷， 0B帧标识表示 0B帧开始位 置， 在 0B通道和控制通道同步过程中， 0B通道的 0B帧需要对齐控制通道中 的 0B帧标识， 例如， λ 1中的 0B帧与控制通道 λ c中的 0Β帧标识对齐。
另外， 图 1 中的所有边缘节点还可采用可调波长的突发发射机和固定波 长的突发接收机， 此时每个边缘节点接收一个固定波长上的 0Β通道， 此种情 况在图 1中未示出， 图 1中所示的节点间的多个承载业务数据的 0Β通道仅是 用以说明节点间通过 0Β通道传送业务数据的多种情况，而不是本实施例中节 点间承载业务数据的 0Β通道的情况。 此时节点的交叉连接模块 1 3中可仅包 括波长交叉单元 1 31。
图 11为本发明节点实施例四的结构示意图， 如图 11所示， 本实施例与 实施例二中节点的区别仅在于， 由于本实施例中交叉连接模块不包括光突发 交叉单元， 因此本实施例中的节点不包括第一故障检测模块和第二故障检测 模块， 此时通道故障检测的功能可以由突发接收机完成， 所以节点还可以包 括故障监测模块， 其中故障监测模块图中未示出， 其余模块及其功能与实施 例二中相同， 此处不再详细描述。 其中交叉连接模块 1 3仅包括波长交叉单元 1 31 , 其具体结构可如图 12中所示。
图 12为本发明节点中交叉连接模块的结构示意图之三， 如图 12所示， 该交叉连接模块包括波长交叉单元 1 31 , 波长交叉单元 1 31 由 TFF和耦合器 组成。 对于边缘节点， 由于其交叉连接模块连接的突发接收机 19为固定波长 的突发接收机， 所以在该固定波长上的 0B通道均为该边缘节点需要接收的 0B通道， 即均为本边缘节点下路的 0B通道。 因此波长交叉单元 1 31的交叉 连接处理过程为从光纤的多个波长中将突发接收机 19 需要接收的波长取出 即可， 此过程由波长交叉单元 1 31 中的 TFF来实现。 TFF从光纤的多个波长 中过滤出突发接收机 19需要接收的波长， 并将其发送到突发接收机 19 , 从 而完成了 0B通道的本地下路的过程。 同时 TFF将不需要本地下路的 0B通道 所在的其余波长发送到耦合器， 由于突发发射机 20 为可调波长的突发发射 机，所以突发发射机 20可以将 0B通道对应的 0B以需要的波长直接通过耦合 器耦合进光纤。此交叉连接处理过程只需要对 0B通道所在的波长进行交叉连 接处理， 即可实现对 0B通道的交叉连接处理。 图 12中的交叉连接模块适用 于需要在本地下路的 0B通道为一个波长上的一个 0B通道或者一个波长上的 多个 0B通道的情况。
图 1 3为本发明节点实施例五的结构示意图， 如图 1 3所示， 本实施例与 实施例四的区别在于控制模块 1 1不同， 本实施例中控制模块 11 包括检测单 元 11 1、 生成单元 112、 配置信息生成单元 11 3和光突发时隙时钟生成模块 115。检测单元 1 11用于从预先分离的信号中检测出 0B帧头时钟， 并将 0B帧 头时钟发送给同步处理模块 12 , 本实施例中预先分离的信号为控制通道； 生 成单元 112用于对 0B帧头时钟进行锁频处理和延时处理生成新 0B帧头时钟， 并将新 0B帧头时钟发送给同步处理模块 12和光突发时隙时钟生成模块 115 , 例如， 进一步地， 生成单元 112还可以对 0B帧头时钟进行滤波处理和锁相处 理；光突发时隙时钟生成模块 115用于以新 0B帧头时钟的开始位置为基准生 成新 OB时隙时钟； 配置信息生成单元 11 3 , 用于根据预先设置的光突发通道 配置信息以及新 0B帧头时钟和新 0B时隙时钟生成光突发配置信息， 并将光 突发配置信息发送给交叉连接模块 1 3。 本实施例与实施例四的区别在于， 新 0B时隙时钟是由光突发时隙时钟生成模块 115生成的。 其余模块的功能与实 施例四中相同， 此处不再赘述。 本实施例通常用于 0B间的间隔长度（即保护 时间）较大的情况。
本实施例中，节点对 0B通道进行同步处理的具体过程可参见实施例三中 的描述。
实施例二至实施例五中的节点可作为边缘节点和核心节点， 可完成对 0B 通道的同步和交叉连接处理。 尤其是作为边缘节点时， 在交叉连接处理过程 中， 通过对 0B通道的下路可实现本节点接收业务数据； 通过将业务数据适配 成 0B并将 0B上路，从而实现了 0B通道上路，即可实现本节点发送业务数据； 不在本节点下路的 0B通道可直接通过该节点， 从而实现业务数据的转发。
节点实施例二至实施例五的技术方案中， 节点， 尤其是作为边缘节点， 其端口上可包括多个 0B通道， 节点可以通过多个 0B通道连接更多的节点， 增加了节点间的可用连接数， 同时对于一个节点而言， 在连接数相同的情况 下， 可以减少节点端口的数量， 从而降低了节点设备的体积、 功耗以及成本。 本实施例中的 0B通道可以是配置的， 相对固定， 节点可通过光突发配置信息 对 0B通道进行交叉连接处理，避免了全光交换中由于缺乏光緩存器而在光层 产生数据冲突的问题。
图 14为本发明节点实施例六的结构示意图， 如图 14所示， 节点包括控 制模块 11、 多个同步处理模块 12和交叉连接模块 1 3。 控制模块 11包括多个 光功率检测单元 114、 多个检测单元 111、 生成单元 112和配置信息生成单元 11 3 , 本实施例中为每根光纤配置了一个光功率检测单元 114、 一个检测单元 111和一个同步处理模块 12。 其中， 光功率检测单元 114用于对接收的光功 率信号进行光电转换， 并输出光功率包络信号到检测单元 11 1 ; 检测单元 11 1 用于从预先分离的信号中检测出 0B帧头时钟和 0B时隙时钟，并将 0B帧头时 钟发送给同步处理模块 12 , 本实施例中预先分离的信号为光功率包络信号； 生成单元 112用于对 0B帧头时钟和 0B时隙时钟进行锁频处理和延时处理生 成新 0B帧头时钟和新 0B时隙时钟，并将新 0B帧头时钟发送给同步处理模块 12 , 进一步地， 生成单元 112还可以对 0B帧头时钟和 0B时隙时钟进行滤波 处理和锁相处理； 配置信息生成单元 11 3用于根据预先设置的光突发通道配 置信息以及新 0B帧头时钟和新 0B时隙时钟生成光突发配置信息， 并将光突 发配置信息发送给交叉连接模块 1 3。 每个同步处理模块 12 包括阵列控制单 元 121和阵列单元 122 , 阵列控制单元 121用于根据 0B帧头时钟和新 0B帧 头时钟生成阵列控制信息， 阵列单元 122用于根据阵列控制信息配置光延时 阵列， 通过光延时阵列对多个波长中的 0B通道进行同步处理， 并将同步处理 后的 0B通道发送给交叉连接模块 1 3。 交叉连接模块 1 3用于根据所述配置信 息对多个同步处理模块发送的同步处理后的 0B通道进行交叉连接处理。
节点还包括第一薄膜滤波器 26、 接收机 24、 控制通道处理模块 14、 控 制通道生成模块 15、 发射机 25和第二薄膜滤波器 27。 其中， 第一薄膜滤波 器 26从光纤中预先分离出控制通道， 并将控制通道发送到接收机 24 ; 接收 机 24用于将接收到的控制通道进行光电转换，并将转换后的控制通道发送到 控制通道处理模块 14 , 控制通道处理模块 14用于从控制通道中提取控制通 道信息， 控制通道生成模块 15用于对控制通道信息进行更新处理， 根据更新 后的控制通道信息以新 0B帧头时钟和新 0B时隙时钟为基准生成新控制通道； 发射机 25用于将接收到的新控制通道进行电光转换； 第二薄膜滤波器 27用 于将经过电光转换的新控制通道耦合进光纤中。 本实施例中的控制通道还可 以为多个， 例如可以从每根光纤分离出一个控制通道， 还可以根据不同的实 际应用从部分光纤分离出控制通道。
节点还可以包括多个光纤放大器 28 , 用于对接收到的光纤中的信号进行 光放大， 例如可以为 EDFA。 本实施例中的节点需要对 0B通道进行同步处理。 节点对 0B通道的同步 处理是基于 0B的自带信息进行的。每个光功率检测单元 114从其连接的光纤 中分出 10%的光功率信号进行检测， 并输出光功率包络信号； 检测单元 111 从光功率包络信号中检测出每根光纤的 0B帧头时钟和 0B时隙时钟； 生成单 元 112根据每根光纤对应的 0B帧头时钟和 0B时隙时钟进行综合处理， 选取 一个最优值做为新 0B帧头时钟和新 0B时隙时钟； 每根光纤对应的阵列控制 单元 121根据 0B帧头时钟和新 0B帧头时钟生成阵列控制信息， 本实施例中 阵列控制信息为计算出的 0B帧头时钟和新 0B帧头时钟的时间差， 阵列单元 122根据阵列控制信息配置光延时阵列， 通过光延时阵列对 0B通道进行光路 延时， 完成对多根光纤中多个波长上的 0B通道的同步处理过程。 钟和 0B时隙时钟的过程进行进一步的详细描述。 图 15为本发明节点实施例 四中光功率包络信号与 0B时隙时钟的示意图， 如图 15所示， 光功率检测单 元 114输出一根光纤中的光功率包络信号， 假设一根光纤中的不同波长上的 0B通道是同步的， 则光功率包络信号包括了若干脉冲， 且这些脉冲就对应不 同的 0B时隙， 由于光纤中每个波长的 0B时隙上不一定会配置 0B, 因此光功 率包络信号中的脉冲幅度有高有低， 甚至出现缺失的情况。 检测单元 11 1需 要首先对光功率包络信号进行处理， 例如整形和滤波， 得出规则的 0B时隙时 钟， 如图 15中所示。 然后检测单元 1 11从光功率包络信号中检测出 0B帧头 时钟， 具体包括： 例如， 预先设定第一个 0B时隙 （ 0B1时隙）对应的 0B1的 功率锁定区域采用全 "1 "编码，其它 0B时隙对应的 0B的功率锁定区域为 " 1 " 和 " 0" 的混合编码， 例如采用类似 "101010" 的 "1 " 和 "0" 交替的编码。 这样， 只要功率锁定区域足够长， 即编码足够长， 就可以在光功率包络信号 中对应 0B1时隙头部的位置检测出一个尖峰。 检测单元 11 1根据预先设定的 0B的功率锁定区域的编码检测光功率包络信号中 0B时隙的功率值， 例如可 以为在一个 0B时隙内对功率值进行多次采样， 如果该 0B时隙的功率值符合 光突发的功率锁定区域的编码为全 " 1 " 编码的特征， 即检测出在某一个 0B 时隙的开始位置出现了一个功率尖峰， 即编码为全 "1 " , 则表明这个 0B时 隙为 0B1时隙， 即 0B帧的开始位置， 取出该脉冲， 就得出 "0B帧头时钟" ， 从而检测单元 111完成从每根光纤中检测 0B帧头时钟和 0B时隙时钟的过程。
本实施例中对多个波长的 0B 通道的同步处理也可采用实施例二中的同 步处理方法， 实施例二中的利用控制通道实现 0B通道同步的方法技术成熟。 但因本实施例中节点接入多根光纤， 如采用实施例二中的同步处理方法， 需 要从每根光纤中分离出控制通道， 并对控制通道进行处理， 这使控制通道的 数量有些冗余， 因此本实施例中采用 0B 自带信息实现 0B通道同步， 减少了 对控制通道的处理， 使得业务数据传输和控制管理分离， 进一步降低了成本。 法， 此时需要在控制模块中增加光功率检测单元。
在对 0B通道进行同步处理之后， 需要对经过同步处理的 0B通道进行交 叉连接处理。 例如， 在通信网络中， 本实施例中的节点可以为图 1 中的核心 节点 C2 , 根据该通信网络中边缘节点采用的突发接收机和突发发射机类型的 不同，本实施例中节点中的交叉连接模块 1 3的结构和交叉连接处理过程会有 所不同。 当通信网络中的边缘节点均采用固定波长的突发接收机 19和可调波 长的突发发射机 20时， C2中的交叉连接模块 1 3可只包括波长交叉单元 1 31 , 其交叉连接功能由波长交叉单元 1 31来实现。
图 16为本发明节点中交叉连接模块的结构示意图之四， 如图 16所示， 交叉连接模块仅包括波长交叉单元 1 31 , 波长交叉单元 1 31 由分波器、 合波 器和耦合器组成。 因边缘节点采用固定波长的突发接收机， 即 C2对应的边缘 节点只能接收固定的波长，所以 C2的波长交叉单元 1 31中的分波器将连接边 缘节点的光纤中的波长进行分波处理， 并通过合波器将其它核心节点接收的 波长和 C2对应的边缘节点接收的波长分别进行合波处理， 并将 C2对应的边 缘节点接收的波长通过耦合器耦合进 C2汇聚网络光纤； 因来自其它核心节点 Cl、 C3和 C4的业务数据均是 C2对应的边缘节点需要接收的业务数据， 所以 只需将承载有该业务数据的 0B通道所在的波长直接通过耦合器耦合进 C2汇 聚网络光纤即可。 图 16中的交叉连接模块通过对 0B通道所在的波长进行交 叉连接处理即可实现对 0B通道的交叉连接处理。
又例如， 当通信网络中的边缘节点均采用可调波长的突发接收机 19和固 定波长的突发发射机 20时， C2中的交叉连接模块 1 3可只包括光纤交叉单元， 其交叉连接功能由光纤交叉单元来实现。图 17为本发明节点中交叉连接模块 的结构示意图之五， 如图 17所示， 交叉连接模块仅包括光纤交叉单元， 光纤 交叉单元由分路器和耦合器组成。 因边缘网络中的突发接收机为可调波长的 突发接收机， 即 C2对应的边缘节点可接收任意波长， 所以光纤交叉单元只需 将来自 C2汇聚网络的光纤进行分路处理，并通过耦合器将经过分路处理的光 纤耦合到 C2汇聚网络以及发送到其它核心节点；对于其它核心节点接入光纤 交叉单元 1 31的光纤， 则通过耦合器直接将其耦合进 C2汇聚网络。
图 18为本发明节点实施例七的结构示意图， 如图 18所示， 本实施例与 实施例六的区别在于控制模块 1 1不同， 本实施例中控制模块 11 包括多个光 功率检测单元 1 14、多个检测单元 1 11、生成单元 112、配置信息生成单元 11 3 和光突发时隙时钟生成模块 115。 光功率检测单元 114用于对接收的光功率 信号进行光电转换， 并输出光功率包络信号到检测单元 111 ; 检测单元 111 用于从预先分离的信号中检测出 0B帧头时钟， 并将 0B帧头时钟发送给同步 处理模块 12和光突发时隙时钟生成模块 115 , 本实施例中预先分离的信号为 光功率包络信号；生成单元 1 12用于对 0B帧头时钟进行锁频处理和延时处理 生成新 0B帧头时钟，并将新 0B帧头时钟发送给同步处理模块 12 ,进一步地， 生成单元 112还可以对 0B帧头时钟进行滤波处理和锁相处理；光突发时隙时 钟生成模块 1 15用于以新 0B帧头时钟的开始位置为基准生成新 0B时隙时钟； 配置信息生成单元 11 3 , 用于根据预先设置的光突发通道配置信息以及新 0B 帧头时钟和新 0B时隙时钟生成光突发配置信息，并将光突发配置信息发送给 交叉连接模块 1 3。 本实施例与实施例六的区别在于， 新 0B时隙时钟是由光 突发时隙时钟生成模块 115生成的。 其余模块的功能与实施例六中相同， 此 处不再赘述。本实施例通常用于 0B间的间隔长度（即保护时间）较大的情况。
上述实施例六和实施例七中的节点作为核心节点和边缘节点， 可完成对 0B通道的同步和交叉连接处理。 尤其是作为核心节点， 在交叉连接处理过程 中， 该节点通过对 0B通道所在波长或者光纤完成交叉连接处理， 实现了 0B 通道的交叉连接处理， 0B通道可直接在该节点穿通， 而无需经过光电或电光 转换以及电处理过程， 从而实现了 0B通道在该节点的光层的直接穿通。
上述实施例六和实施例七中的 0B通道可以是配置的， 相对固定， 节点， 尤其是作为核心节点， 可通过配置信息对 0B通道进行交叉连接处理， 避免了 全光交换中由于缺乏光緩存器而在光层产生数据冲突的问题；节点对 0B通道 进行的同步和交叉连接处理是在光层完成的， 减少了光电、 电光转换以及电 处理过程， 降低了核心节点的功耗、 体积以及成本。 在上述七个实施例的基 础上， 0B通道可以采用通道保护的方式进行保护， 增强了网络的可靠性。 其 中根据保护方式的不同， 实现的方式也不同， 具体可以参照目前比较成熟的 波分网络以及 SDH网络中对于通道的保护方法。 例如，实现 0B通道的保护可 以为： 在源节点， 即有业务数据上路的节点， 客户侧业务数据经过客户侧业 务处理模块的处理、 突发容器适配模块的封装后， 被发送到光突发成帧模块， 经光突发成帧模块适配成 0B后， 0B被复制成二路， 通过光突发发射机发送 出去。 这二路相同的 0B, 分别组成不同的 0B通道， 这二个 0B通道就形成保 护关系。 一般的情况下， 这二个 0B通道会经过不同的物理链路， 例如光纤路 径。 在目的节点即有业务数据下路的节点， 接收到这二个 0B通道后， 光突发 成帧模块会选择一个 0B通道进行处理， 如果目的节点检测到当前选择的 0B 通道出现了故障， 则会切换到另一个 0B通道上， 从而完成 0B通道的保护倒 换过程， 实现对 0B通道的保护。 由于不同的 0B通道在时间上是分离的， 相 互独立， 因此 0B通道的保护倒换可以不影响其他 0B通道， 使网络的可靠性 更高。
本发明实施例还提供了一种数据处理系统， 作为一个实施例， 该数据处 理系统包括至少二个节点， 所述节点间采用一个或多个波长上的光突发通道 传送业务数据。
本实施例中的数据处理系统中节点间通过 0B通道进行连接，来传送业务 数据， 节点的端口上包括多个 0B通道， 使节点可以通过 0B通道连接更多的 节点， 增加了节点的可用连接数， 同时对于一个节点而言， 在连接数相同的 情况下， 可以减少节点端口的数量， 从而降低了节点设备的体积、 功耗以及 成本； 传送业务数据的 0B通道可以是配置的， 相对固定， 节点可对 0B通道 进行处理， 避免了全光交换中由于缺乏光緩存器而在光层产生数据冲突的问 题。
作为另一个实施例， 数据处理系统包括四个节点， 节点间采用一个或多 个波长上的 0B通道传送业务数据，其中四个节点还用于对承载业务数据的一 个或多个波长上的 0B通道进行同步处理和交叉连接处理。例如，如图 1所示， 四个节点可以为核心网络中的核心节点 C2、 核心节点 C2对应的汇聚网络中 的边缘节点 C2N1、 核心网络中的核心节点 C 3和核心节点 C 3对应的汇聚网络 中的边缘节点 C 3N1 0。
边缘节点 C2N1和 C 3N1 0可采用图 5或图 9中的节点， 边缘节点 C2N1和
C 3N1 0 的具体结构及各结构的功能与节点实施例二或者实施例三中相同， 此 处不再详细描述。
核心节点 C2和 C 3可采用图 14或者图 18中的节点， 核心节点 C2和 C 3 的具体结构及各结构的功能与节点实施例六或者实施例七相同， 此处不再详 细描述。
当通信网络中的边缘节点均采用可调波长的突发接收机和固定波长的突 发发射机时，数据处理系统中的边缘节点 C2N1和 C 3N1 0中的交叉连接模块可 采用图 7中的交叉连接模块， 如图 7所示， 该交叉连接模块包括波长交叉单 元 1 31和光突发交叉单元 1 32 , 其中波长交叉单元 1 31包括分波器和合波器， 光突发交叉单元 1 32 包括多个分路器、 多个光开关和耦合器。 数据处理系统 中的核心节点 C2和 C3可采用图 17中的交叉连接模块， 如图 17所示， 交叉 连接模块仅包括光纤交叉单元， 光纤交叉单元由分路器和耦合器组成。
下面通过一个实例具体阐述上述数据处理系统对 0B通道进行同步处理 和交叉连接处理的过程。
例如业务数据需要从 C2 汇聚网络中的 C2N1 发送到 C3 汇聚网络中的 C3N10 , 该业务数据需要依次经过 C2N1、 C2、 C3和 C3N10 , 由一个波长上的 一个 0B通道承载， 例如， 本实施例中设定为 λ 1上的 0Β2通道。 在该业务数 据传送过程中，数据处理系统需要对承载该业务数据的 0Β通道进行同步处理 和交叉连接处理， 以实现 0Β通道对应的 0Β的上路、 穿通以及下路的过程， 从而完成业务数据的传送。
如图 5和图 7所示， 边缘节点 C2N1通过客户侧业务处理模块 16、 突发 容器适配模块 17、光突发成帧模块 18和突发发射机 20完成需要发送到 C3N10 的业务数据的上路过程。 客户侧业务处理模块 16接收需要发送的业务数据， 并对该业务进行检测处理和转发处理， 进一步还可以包括适配处理或者汇聚 处理， 并将处理后的业务数据发送到突发容器适配模块 17。 突发容器适配模 块 17将业务数据封装进突发容器。光突发成帧模块 18根据 C2N1进行同步处 理时生成的新 0Β帧头时钟和新 0Β时隙时钟将封装有业务数据的突发容器适 配成 0Β, 本实施例中为 λ ΐ上的 0Β2 ; 同时光突发成帧模块 18还会将 0Β2与 发送到其他边缘节点的 0Β组装成 0Β帧， 该 0Β帧所在波长为 λ 1。 突发发射 机 20将 0Β2所在的 0Β帧发送到波长交叉单元 1 31中， 从而完成业务数据在 N1的上路过程。 波长交叉单元 1 31中的合波器将 0Β2所在的波长与其它波长 进行合波处理， 并发送到核心节点 C2。 如图 14和 17所示， 核心节点 C2接 收来自汇聚网络光纤中的 0B通道和其它核心节点光纤中的 0B通道， 并对所 有光纤中的 0B通道进行同步处理过程， 同步处理过程是由多个同步处理模块 12和控制模块 11 完成， 具体的同步处理方法与节点实施例六中相同， 此处 不再详细描述。接着光纤交叉单元中的分路器对来自 C2汇聚网络的光纤进行 分路处理， 直接将 C2 汇聚网络的光纤分路到 C3 , 即直接将承载有业务数据 的 0B2通道所在的光纤分路到 C3。 C 3对所有接入光纤中的 0B通道进行同步 处理过程， 同步处理过程是由多个同步处理模块 12和控制模块 1 1完成， 具 体的同步处理方法与节点实施例六中相同， 此处不再详细描述。接着 C3光纤 交叉单元中的耦合器直接将接入 C3的光纤耦合进 C3汇聚网络光纤， 即将承 载有业务数据的 0B2通道所在的光纤耦合进 C3汇聚网络中接入 N1 0的光纤。 如图 5和图 7所示， 边缘节点 C3N10中的同步处理模块 12和控制模块 11对 来自 C3的光纤中的多个波长的 0B通道进行同步处理， 具体的同步处理方法 与节点实施例二中相同，此处不再详细描述。接着 C3N10的波长交叉单元 1 31 中的分波器对经过同步处理后的来自 C 3的光纤中的多个波长进行分波处理， 通过控制光突发交叉单元 1 32中的分路器和光开关，对每个波长上的 0B进行 处理， 取出本节点需要接收到的 0B , 即本地下路的 0B, 其中包括 λ ΐ上的承 载有业务数据的 0Β2 , 并将 0Β2和其它需要在本地下路的 0Β通过耦合器进行 耦合后， 发送到突发接收机 19 , 突发接收机 19对本地下路的 0Β进行光电转 换后， 发送到光突发成帧模块 18 , 光突发成帧模块 18对接收到的 0Β进行处 理生成封装有业务数据的突发容器，突发容器适配模块 17对封装有业务数据 的突发容器进行封装生成业务数据， 该业务数据中包括 0Β2通道承载的业务 数据， 最后客户侧业务处理模块 16对业务数据进行检测处理和转发处理， 进 一步还可以包括适配处理， 最终完成 0Β2通道上的业务数据在 C 3N10下路的 过程， 即实现了将业务数据通过 λ 1上的 0Β2通道从 C2汇聚网络中的 C2N1 发送到 C3汇聚网络中的 C3N10。
本实施例中承载业务数据的还可以是一个波长上的多个 0B通道，其同步 处理和交叉连接处理的过程和业务数据承载在一个波长上的一个 0B 通道的 同步处理和交叉连接处理过程相似，不同之处仅在于在边缘节点 C2N1上路的 业务数据以及在边缘节点 C 3N10下路的业务数据承载在一个波长上的多个 0B 通道上， 具体的同步处理、 交叉连接处理过程此处不再详细描述。
本实施例中承载业务数据的还可以是多个波长上对应的同一位置上的 0B 组成的 0B通道或者是多个波长上的多个对应的同一位置的 0B组成的多个 0B 通道时， 此时边缘节点 C2N1和 C 3N10可采用图 5中的节点， 其交叉连接模块 可采用图 8中的交叉连接模块对承载业务数据的 0B通道进行交叉连接处理， 以完成业务数据在 C2N1的上路和 C3N10的下路过程，其具体处理过程与节点 实施例二中相同， 此处不再详细描述。 当承载业务数据的是一根光纤上的所 有波长上的同一位置 0B组成的 0B通道或者是一根光纤上的所有波长上的多 个对应的同一位置 0B组成的多个 0B通道时， 图 8中的波长交叉单元 1 31可 以简化， 不需要波带滤波器和波带合波器， 但此时需要一个耦合器将本地上 路的 0B通道耦合进光纤中。
本实施例中的数据处理系统， 节点间通过 0B通道进行连接， 即通过 0B 通道来传送业务数据， 节点的端口上包括多个 0B通道， 使节点可以通过 0B 通道连接更多的节点， 增加了节点的可用连接数， 同时对于一个节点而言， 在连接数相同的情况下， 可以减少节点端口的数量， 从而降低了节点设备的 体积、 功耗以及成本； 0B通道可以是配置的， 相对固定， 节点， 包括边缘节 点和核心节点， 可通过配置信息对 0B通道进行交叉连接处理， 避免了全光交 换中由于缺乏光緩存器而产生数据冲突的问题； 节点， 尤其是核心节点对 0B 通道进行的同步和交叉连接处理是在光层完成的， 减少了光电、 电光转换以 及电处理过程， 降低了节点的功耗、 体积以及成本， 降低了通信网络的资金 花费和运作花费， 适于组建大容量网络， 以适应快速增长的数据业务传送需 求。
作为又一个实施例， 数据处理系统包括四个节点， 节点间采用一个或多 个波长上的 0B通道传送业务数据，其中四个节点还用于对承载业务数据的一 个或多个波长上的 0B通道进行同步处理和交叉连接处理的节点。 例如， 如图 1所示， 四个节点可以为核心网络中的核心节点 C2、核心节点 C2对应的汇聚 网络中的边缘节点 C2N1、 核心网络中的核心节点 C3和核心节点 C3对应的汇 聚网络中的边缘节点 C 3N10。
边缘节点 C2N1和 C3N1 0可采用图 11中的节点， 如图 1 1所示， 边缘节点 C2N1和 C3N10的具体结构及各结构的功能与节点实施例四中相同， 此处不再 伴细描述。
核心节点 C2和 C3可采用图 14中的节点， 如图 14所示， 核心节点 C2和 C3的具体结构及各结构的功能与节点实施例六中相同， 此处不再详细描述。
当通信网络中的边缘节点均采用固定波长的突发接收机和可调波长的突 发发射机时，数据处理系统中的边缘节点 C2N1和 C 3N10中的交叉连接模块可 采用图 12中的交叉连接模块， 如图 12所示， 该交叉连接模块包括波长交叉 单元 1 31 , 波长交叉单元 1 31 由 TFF和耦合器组成。 数据处理系统中的核心 节点 C2和 C3可采用图 16中的交叉连接模块， 如图 16所示， 交叉连接模块 仅包括波长交叉单元 1 31 , 波长交叉单元 1 31 由分波器、 合波器和耦合器组 成。
下面通过一个实例具体阐述上述数据处理系统对 0B通道进行同步处理 和交叉连接处理的过程。
例如， 业务数据需要从 C2汇聚网络中的 C2N1发送到 C 3汇聚网络中的 C3N10 , 该业务数据需要依次经过 C2N1、 C2、 C3和 C3N10 , 由一个波长上的 一个 0B通道承载， 例如， 本实施例中设定为 λ 1上的 0Β2通道。 在该业务数 据传送过程中，数据处理系统需要对承载该业务数据的 0Β通道进行同步处理 和交叉连接处理， 以实现 0Β通道对应的 0Β的上路、 穿通以及下路的过程， 从而完成业务数据的传送。
如图 11和图 12所示， 边缘节点 C2N1通过客户侧业务处理模块 16、 突 发容器适配模块 17、 光突发成帧模块 18 和突发发射机 20 完成需要发送到 C3N10的业务数据的上路过程。 客户侧业务处理模块 16接收需要发送的业务 数据， 并对该业务进行检测处理和转发处理， 进一步还可以包括适配处理或 者汇聚处理， 并将处理后的业务数据发送到突发容器适配模块 17。 突发容器 适配模块 17将业务数据封装进突发容器。光突发成帧模块 18根据 C2N1进行 同步处理时生成的新 0B帧头时钟和新 0B时隙时钟将封装有业务数据的突发 容器适配成 0B , 本实施例中为 λ ΐ上的 0B2 ; 同时光突发成帧模块 18还会将 0Β2与发送到其他边缘节点的 0Β通道中的 0Β组装成 0Β帧， 该 0Β帧所在波 长为 λ 1。 突发发射机 20将 0Β2所在的 0Β帧发送到波长交叉单元 1 31中， 从 而完成业务数据在 C2N1 的上路过程。 波长交叉单元 1 31 中的耦合器直接将 0Β2通道所在的波长耦合进光纤中， 并发送到核心节点 C2。 如图 14和图 16 所示， 核心节点 C2接收来自汇聚网络光纤中的 0B通道和其它核心节点光纤 中的 0B通道， 并对所有光纤中的 0B通道进行同步处理过程， 同步处理过程 是由多个同步处理模块 12和控制模块 11完成， 具体的同步处理方法与节点 实施例六中相同， 此处不再详细描述。 接着波长交叉单元 1 31 中的分波器对 来自 C2汇聚网络光纤中的波长进行分波处理，并通过合波器将 0B2通道所在 波长 λ ΐ和其它需要发送到 C 3的波长进行合波处理， 并发送到 C3。 C3对所 有接入光纤中的波长上的 0B通道进行同步处理，具体的同步处理方法与节点 实施例六中相同， 此处不再详细描述。 接着 C3 的波长交叉单元 1 31 直接将 C2接入的光纤耦合进 C3汇聚网络光纤， 即将承载有业务数据的 0B2通道所 在的光纤耦合进 C3汇聚网络中接入 C 3N10的光纤。 如图 1 1和图 12所示， 边 缘节点 C3N10中的同步处理模块 12和控制模块 11对来自 C3的光纤中的多个 波长的 0B通道进行同步处理， 具体的同步处理方法与节点实施例六中相同， 此处不再详细描述。 接着 C3N10的波长交叉单元 1 31中的 TFF从光纤中的多 个波长中过滤出 λ 1 , 并将其发送到突发接收机 19 , 即 λ 1上的 0Β通道发送 到突发接收机 19 , 其中包括承载有业务数据的 0Β2通道， 突发接收机 19对 本地下路的 0Β通道对应的 0Β进行光电转换后， 发送到光突发成帧模块 18 , 光突发成帧模块 18对接收到的 0Β通道进行处理生成封装有业务数据的突发 容器，突发容器适配模块 17对封装有业务数据的突发容器进行封装生成业务 数据， 该业务数据中包括 0B2通道承载的业务数据， 最后客户侧业务处理模 块 16对业务数据进行检测处理和转发处理， 进一步地， 还可以对该业务数据 进行适配处理， 最终完成 0B2通道上的业务数据在 N10下路的过程， 即实现 了将业务数据通过 λ 1上的 0Β2通道从 C2汇聚网络中的 C2N1发送到 C 3汇聚 网络中的 C3N10。
本实施例中承载业务数据的还可以是一个波长上的多个 0B通道，其同步 处理和交叉连接处理的过程和业务数据承载在一个波长上的一个 0B 通道的 同步处理和交叉连接处理过程相似，不同之处仅在于在边缘节点 C2N1上路的 业务数据以及在边缘节点 C 3N10下路的业务数据承载在一个波长上的多个 0B 通道上， 具体的同步处理、 交叉连接处理过程此处不再详细描述。
本实施例中的数据处理系统中节点间通过 0B通道进行连接，节点的端口 上包括多个 0B通道， 使节点可以通过 0B通道连接更多的节点， 增加了节点 的可用连接数， 同时对于一个节点而言， 在连接数相同的情况下， 可以减少 节点端口的数量， 从而降低了节点设备的体积、 功耗以及成本； 承载业务数 据的 0B通道可以是配置的， 相对固定， 节点可对 0B通道进行交叉连接处理， 避免了全光交换中由于缺乏光緩存器而在光层产生数据冲突的问题； 节点对 0B通道进行的同步和交叉连接处理是在光层完成的， 减少了光电、 电光转换 以及电处理过程， 降低了节点的功耗、 体积以及成本。
在数据处理系统的实施例中存在一种特例情况， 该数据处理系统包括二 个节点， 此时二个节点分别作为源节点和目的节点， 并且节点间仅采用一个 波长上的一个 0B通道传送业务数据，承载业务数据的 0B通道在源节点上路， 发送到目的节点后， 在目的节点下路， 从而完成业务数据的传送过程。 在上 述过程中，数据处理系统中的二个节点无需对 0B通道进行同步处理和交叉连 接处理， 只需分别完成 0B通道的上路和下路即可实现业务数据的传送。
本发明实施例提供了一种数据处理方法， 具体包括： 生成同步信息和光突发配置信息；
根据所述同步信息对一个或多个波长上的光突发通道进行同步处理； 根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接处 理。
其中， 所述生成同步信息和光突发配置信息可以为： 从预先分离的信号 中检测出光突发帧头时钟； 对所述光突发帧头时钟进行锁频处理和延时处理 理和锁相处理，所述同步信息至少包括光突发帧头时钟和新光突发帧头时钟； 以新光突发帧头时钟的开始位置为基准生成新光突发时隙时钟； 根据预先设 置的光突发通道配置信息以及所述新光突发帧头时钟和生成的新光突发时隙 时钟生成光突发配置信息。
其中， 所述生成同步信息和光突发配置信息还可以为： 从预先分离的信 号中检测出光突发帧头时钟和光突发时隙时钟； 对所述光突发帧头时钟和光 突发时隙时钟进行锁频处理和延时处理生成新光突发帧头时钟和新光突发时 所述同步信息至少包括光突发帧头时钟和新光突发帧头时钟； 根据预先设置 的光突发通道配置信息以及所述新光突发帧头时钟和新光突发时隙时钟生成 光突发配置信息。
所述根据所述同步信息对一个或多个波长上的光突发通道进行同步处理 具体包括： 根据所述光突发帧头时钟和所述新光突发帧头时钟生成阵列控制 信息； 根据所述阵列控制信息配置光延时阵列， 通过所述光延时阵列对所述 一个或者多个波长中的光突发通道进行同步处理。
所述根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接 处理可以为： 根据所述光突发配置信息对同步处理后的光突发通道所在的光 纤进行交叉连接处理。
所述根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接 处理还可以为： 根据所述光突发配置信息对同步处理后的光突发通道所在的 波长进行交叉连接处理。
所述根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接 处理还可以为： 根据所述光突发配置信息对同步处理后的光突发通道进行交 叉连接处理。
所述根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接 处理还可以为： 根据所述光突发配置信息对同步处理后的光突发通道所在的 波长进行交叉连接处理以及根据所述光突发配置信息对同步处理后的光突发 通道进行交叉连接处理。 定的相位关系， 其中不同波长上的光突发帧的帧头可以是对齐的； 或者， 经 过同步处理的不同波长上同一位置的光突发保持相对固定的相位关系， 其中 不同波长上同一位置的光突发可以是对齐的。 换言之， 同步处理的过程具体 包括： 对齐不同波长上的光突发帧的帧头； 或者， 对齐不同波长上的同一位 置的光突发。
本发明实施例还提供了一种数据处理方法， 具体包括： 节点间采用一个 或多个波长上的光突发通道进行连接， 所述节点将业务数据通过所述光突发 通道进行传送。
进一步地， 还包括： 所述节点对承载业务数据的一个或多个波长上的光 突发通道进行同步处理和交叉连接处理。
其中， 所述节点对承载业务数据的一个或多个波长上的光突发通道进行 同步处理和交叉连接处理可以为： 生成同步信息和光突发配置信息； 根据所 述同步信息对一个或多个波长上的光突发通道进行同步处理； 根据所述光突 发配置信息对同步处理后的光突发通道进行交叉连接处理。 定的相位关系， 其中不同波长上的光突发帧的帧头可以是对齐的； 或者， 经 过同步处理的不同波长上同一位置的光突发保持相对固定的相位关系， 其中 不同波长上同一位置的光突发可以是对齐的。 换言之， 同步处理的过程具体 包括： 对齐不同波长上的光突发帧的帧头； 或者， 对齐不同波长上的同一位 置的光突发。
上述数据处理方法实施例中的步骤并未限定严格的时序过程， 另外数据 处理方法中所涉及的各个模块与节点和数据处理系统中相同， 其具体功能在 此不再伴细描述。
本发明实施例数据处理方法的技术方案中节点间通过 0B通道进行连接， 节点的端口上包括多个 0B通道， 使节点可以通过 0B通道连接更多的节点， 增加了节点的可用连接数， 同时对于一个节点而言， 在连接数相同的情况下， 可以减少节点端口的数量， 从而降低了节点设备的体积、 功耗以及成本。 承 载业务数据的 0B通道可以是配置的， 相对固定， 节点可对 0B通道进行交叉 连接处理， 避免了全光交换中由于缺乏光緩存器而在光层产生数据冲突的问 题。节点对 0B通道进行的同步和交叉连接处理是在光层完成的，减少了光电、 电光转换以及电处理过程， 降低了节点的功耗、 体积以及成本。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案而非对其进 行限制， 尽管参照较佳实施例对本发明进行了详细的说明， 本领域的普通技 术人员应当理解： 其依然可以对本发明的技术方案进行修改或者等同替换， 而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技术方案的 4青神和范围。

Claims

权 利 要 求 书
1、 一种节点， 其特征在于， 包括：
控制模块， 用于生成同步信息和光突发配置信息；
至少一个同步处理模块， 用于根据所述同步信息对一个或多个波长上的 光突发通道进行同步处理；
交叉连接模块， 用于根据所述光突发配置信息对同步处理后的光突发通 道进行交叉连接处理。
2、 根据权利要求 1所述的节点， 其特征在于， 所述同步处理具体包括： 对齐不同波长上的光突发帧的帧头， 所述光突发通道的传输实体为光突 发， 所述光突发按照周期性发送， 同一周期发送的所述光突发形成光突发帧； 或者，
对齐不同波长上的同一位置的光突发， 所述光突发通道的传输实体为光 突发。
3、 根据权利要求 1所述的节点， 其特征在于， 所述控制模块包括： 至少一个检测单元， 用于从预先分离的信号中检测出光突发帧头时钟， 生成单元， 用于对所述光突发帧头时钟进行锁频处理和延时处理生成新 光突发时隙时钟生成模块， 用于以所述新光突发帧头时钟的开始位置为 基准生成新突发时隙时钟；
配置信息生成单元， 用于根据预先设置的光突发通道配置信息以及所述 新光突发帧头时钟和所述新光突发时隙时钟生成光突发配置信息， 并将所述 光突发配置信息发送给所述交叉连接模块；
所述同步信息至少包括光突发帧头时钟和新光突发帧头时钟。
4、 根据权利要求 1所述的节点， 其特征在于， 所述控制模块包括： 至少一个检测单元， 用于从预先分离的信号中检测出光突发帧头时钟和
生成单元， 用于对所述光突发帧头时钟和光突发时隙时钟进行锁频处理 和延时处理生成新光突发帧头时钟和新光突发时隙时钟， 并将所述新光突发 帧头时钟发送给所述同步处理模块；
配置信息生成单元， 用于根据预先设置的光突发通道配置信息以及所述 新光突发帧头时钟和所述新光突发时隙时钟生成光突发配置信息， 并将所述 光突发配置信息发送给所述交叉连接模块；
所述同步信息至少包括光突发帧头时钟和新光突发帧头时钟。
5、根据权利要求 3或 4所述的节点，其特征在于，所述控制模块还包括： 至少一个光功率检测单元， 用于对接收的光功率信号进行光电转换， 并 输出光功率包络信号到所述检测单元， 所述预先分离的信号为光功率包络信 号。
6、 根据权利要求 3或 4所述的节点， 其特征在于， 所述预先分离的信号 为控制通道， 所述节点还包括：
至少一个控制通道处理模块，用于从所述控制通道中提取控制通道信息； 至少一个控制通道生成模块， 用于对所述控制通道信息进行更新处理， 根据更新后的控制通道信息以所述新光突发帧头时钟和新光突发时隙时钟为 基准生成新控制通道。
7、 根据权利要求 3或 4所述的节点， 其特征在于， 所述同步处理模块包 括：
阵列控制单元， 用于根据所述光突发帧头时钟和所述新光突发帧头时钟 生成阵列控制信息；
阵列单元， 用于根据所述阵列控制信息配置光延时阵列， 通过所述光延 时阵列对所述一个或者多个波长中的光突发通道进行同步处理， 并将同步处 理后的光突发通道发送给所述交叉连接模块。
8、 根据权利要求 1所述的节点， 其特征在于， 所述交叉连接模块包括： 光纤交叉单元， 用于根据所述光突发配置信息对同步处理后的光突发通 道所在的光纤进行交叉连接处理； 或者
波长交叉单元， 用于根据所述光突发配置信息对同步处理后的光突发通 道所在的波长进行交叉连接处理。
9、 根据权利要求 1或 8所述的节点， 其特征在于， 所述交叉连接模块还 包括： 光突发交叉单元， 用于根据所述光突发配置信息对同步处理后的光突 发通道进行交叉连接处理。
10、 根据权利要求 3或 4所述的节点， 其特征在于， 还包括：
客户侧业务处理模块， 用于对业务数据进行检测处理和转发处理； 突发容器适配模块， 用于将处理后的业务数据封装进突发容器或者对封 装进突发容器的业务数据进行解封装生成业务数据；
光突发成帧模块， 用于根据所述新光突发帧头时钟、 新光突发时隙时钟 将封装有业务数据的突发容器适配成光突发或者对接收到的光突发进行处理 生成封装有业务数据的突发容器，所述光突发为所述光突发通道的传输实体。
11、 根据权利要求 10所述的节点， 其特征在于， 还包括：
突发接收机， 用于将经过交叉连接处理的光突发通道进行光电转换， 并 发送给所述光突发成帧模块；
突发发射机，用于将所述光突发成帧模块适配成的光突发进行电光转换， 并发送到所述交叉连接模块。
12、 一种数据处理系统， 其特征在于， 包括：
至少二个节点， 所述节点间采用一个或多个波长上的光突发通道进行连 接， 所述节点将业务数据通过所述光突发通道进行传送， 所述节点还用于对 承载业务数据的一个或多个波长上的光突发通道进行同步处理和交叉连接处 理， 所述节点包括：
控制模块， 用于生成同步信息和光突发配置信息； 至少一个同步处理模块， 用于根据所述同步信息对一个或多个波长上的 光突发通道进行同步处理；
交叉连接模块， 用于根据所述光突发配置信息对同步处理后的光突发通 道进行交叉连接处理。
1 3、 根据权利要求 12所述的数据处理系统， 其特征在于， 所述同步处理 具体包括：
对齐不同波长上的光突发帧的帧头， 所述光突发通道的传输实体为光突 发， 所述光突发按照周期性发送， 同一周期发送的所述光突发形成光突发帧； 或者，
对齐不同波长上的同一位置的光突发， 所述光突发通道的传输实体为光 突发。
14、根据权利要求 12的数据处理系统，其特征在于，所述控制模块包括： 至少一个检测单元， 用于从预先分离的信号中检测出光突发帧头时钟， 生成单元， 用于对所述光突发帧头时钟进行锁频处理和延时处理生成新 光突发时隙时钟生成模块， 用于以所述新光突发帧头时钟的开始位置为 基准生成新突发时隙时钟；
配置信息生成单元， 用于根据预先设置的光突发通道配置信息以及所述 新光突发帧头时钟和所述新光突发时隙时钟生成光突发配置信息， 并将所述 光突发配置信息发送给所述交叉连接模块；
所述同步信息至少包括光突发帧头时钟和新光突发帧头时钟。
15、 根据权利要求 12所述的数据处理系统， 其特征在于， 所述控制模块 包括：
至少一个检测单元， 用于从预先分离的信号中检测出光突发帧头时钟和 生成单元， 用于对所述光突发帧头时钟和光突发时隙时钟进行锁频处理 和延时处理生成新光突发帧头时钟和新光突发时隙时钟， 并将所述新光突发 帧头时钟发送给所述同步处理模块；
配置信息生成单元， 用于根据预先设置的光突发通道配置信息以及所述 新光突发帧头时钟和所述新光突发时隙时钟生成光突发配置信息， 并将所述 光突发配置信息发送给所述交叉连接模块；
所述同步信息至少包括光突发帧头时钟和新光突发帧头时钟。
16、 一种数据处理方法， 其特征在于， 包括：
生成同步信息和光突发配置信息；
根据所述同步信息对一个或多个波长上的光突发通道进行同步处理； 根据所述光突发配置信息对同步处理后的光突发通道进行交叉连接处 理。
17、根据权利要求 16所述的方法，其特征在于，所述同步处理具体包括： 对齐不同波长上的光突发帧的帧头， 所述光突发通道的传输实体为光突 发， 所述光突发按照周期性发送， 同一周期发送的所述光突发形成光突发帧； 或者，
对齐不同波长上的同一位置的光突发， 所述光突发通道的传输实体为光 突发。
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