CN101959083A

CN101959083A - Data processing method and equipment

Info

Publication number: CN101959083A
Application number: CN2009100888746A
Authority: CN
Inventors: 操时宜; 张毅
Original assignee: Huawei Technologies Co Ltd
Current assignee: HUNAN QINHAI DIGITAL CO Ltd
Priority date: 2009-07-21
Filing date: 2009-07-21
Publication date: 2011-01-26
Anticipated expiration: 2029-07-21
Also published as: CN101959083B

Abstract

The embodiment of the invention discloses a data processing method and equipment. The method comprises the following steps: encapsulating a client signal to generate a transfer frame and encapsulating the transfer frame to generate an optical burst unit (OBU); carrying out electro-optic conversion on the OBU to form an optical burst channel (OBC) and generating OBC overhead corresponding to the OBC; and encapsulating the OBC overhead into a first control channel which is born in the OBC for transferring the first control channel. The data frame structures of the optical layer and the electrical layer are clearly defined in the technical scheme of the embodiment of the invention and the method for data processing based on the defined data frame structures of the optical layer and the electrical layer is suitable for OBTN, thus solving the problem that the data frame structures which have electrical layer and optical layer characteristics and are defined in the network and the method for data processing based on the defined data frame structures can not be applied to the OBTN for data transmission in the prior art.

Description

Data processing method and data processing equipment

Technical field

The embodiment of the invention relates to the communications field, particularly a kind of data processing method and data processing equipment.

Background technology

The light burst transmits net, and (Optical Burst Transport Network is called for short: OBTN) as a kind of new network architecture, combine the characteristics of photosphere and electricity layer.Fig. 1 is a kind of application schematic diagram of OBTN in the prior art, as shown in Figure 1, the node of OBTN comprises a plurality of fringe nodes of core node C1, C2, C3, C4 and each core node correspondence, all can adopt light burst (the Optical Burst on one or more wavelength between wherein any two nodes, be called for short: OB) passage connects and the OB channel transmission data by connecting, and wherein light burst passage can also abbreviate OBC (Optical BurstChannel) as.In addition, also comprise the control channel that is used to carry various maintenance management informations among the OBTN, control channel all needs to carry out the electricity layer at each node and handles.Fig. 2 is a kind of structural representation of OB passage in the prior art, as shown in Figure 2, and the sub-wavelength passage of OB passage on a wavelength of optical fiber, marking off.Particularly, marking off several length on a certain wavelength is the OB time slot of t2, and n OB time slot composition cycle is the OB frame of T, and it is the guard time of t3 that each OB time slot includes OB and the length that length is t1.Wherein, optical device was opened, is closed the required time when guard time mainly was meant the OB transmission, receives and switches; therefore each OB sends at interval or receives in OB frame, and its data-signal is discontinuous, and this signal that is different from continuous mode is called burst mode signal.The OB of different cycles same position forms an OB passage, and such wavelength can be divided into a plurality of OB passages, for example the OB1 passage among Fig. 2, OB2 passage and OBn passage etc.Fig. 3 is the another kind of structural representation of OB passage in the prior art, as shown in Figure 3, and the sub-wavelength passage of OB passage on a plurality of wavelength of optical fiber, marking off.Particularly, the OB of a plurality of wavelength same positions forms an OB passage, for example the OB1 passage among Fig. 3, OB2 passage and OBn passage etc.The OB passage as example that Fig. 1 provides is respectively: the OB2 passage on OB3 passage on the wavelength X 1 of the OB2 passage on the wavelength X 2 of connected node C1N10, C1, C3, C3N1 and C3N2, connected node C1N10, C1, C3 and C3N1 and the wavelength X 1 of connected node C2N1, C2, C3 and C3N10.In the channel attached node of above-mentioned each OB, C1, C2 and C3 not can be used as intermediate node because of there being the data He Xialu that sets out on a journey, and C1N10 and C2N1 can be used as source node because of there being data to set out on a journey, and the road can be used as destination node under the data because of having for C3N1, C3N2 and C3N10.When carrying out transfer of data by OBTN, data need be carried out encapsulation process at electricity layer at source node and be adapted to OB, be about to data and be adapted to the OB passage and transmit.At intermediate node OB passage is direct in the photosphere break-through, can not descend the electricity layer, so the intermediate node among the OBTN need not to carry out light/electricity/light conversion and electric layer is handled.Can draw in sum, OBTN combines the characteristics of photosphere and electricity layer in data transmission procedure.

At present, in the various network architectures of prior art, (Optical Transport Network is called for short: OTN) and EPON (PassiveOptical Network, abbreviation: PON) optical transfer network that mainly comprises of comprehensive photosphere and electricity layer characteristic.

OTN is synchronous digital hierarchy (the Synchronous Digital Hierarchy that continues, be called for short: SDH)/Synchronous Optical Network (Synchronous Optical Network, be called for short: SONET) transmit network transmission network system afterwards, its hierarchical structure comprises electricity layer photoreactive layer, and OTN can realize data transmission procedure based on the data frame structure of each layer that defines in the electricity layer photoreactive layer.Wherein the electricity layer comprises that (Optical Payload Unit, be called for short: OPU) (Optical Data Unit, be called for short: ODU) (Optical Transport Unit is called for short: OTU) layer optical payload unit for layer and optical transport unit for layer, light data cell.Electricity layer expense mainly comprises the OPU expense of OPU layer, the ODU expense of ODU layer and the OTU expense of OTU layer.In the transfer of data of OTN, intermediate node need be handled to realize various functions electricity layer expense, thereby finish data transmission procedure, for example: intermediate node need monitor that (Tandem Connection Monitoring is called for short: TCM) wait and handle byte to the multistage polyphone in adjustment byte in the OPU expense and the ODU expense.Owing to only under not meeting of photosphere break-through, arrive the electricity layer when data are by intermediate node in the transfer of data of OBTN, if the photosphere and the electricity layer that define among the OTN are directly applied among the OBTN, need just can't handle in the electricity layer expense that the electricity layer is handled, the various functions that need like this to realize in the data transmission procedure of OBTN just can't realize.Therefore, the data frame structure of each layer that defines among the OTN and can't be applied to carry out among the OBTN transfer of data based on the data processing method of this data frame structure.

PON is as a kind of broadband access technology, be characterized in a little arriving the physical topological structure of multiple spot, comprise optical line terminal (Optical Line Terminal, be called for short: OLT), passive optical distribution network (OpticalDistribution Network, be called for short: ODN) with a plurality of optical network units (Optical NetworkUnit, be called for short: ONU), OLT is connected with a plurality of ONU by ODN.Wherein, from OLT to ONU, be down direction, from ONU to OLT up direction.The signal of down direction adopts the continuous signal pattern among the PON, and its frame structure comprises physical layer controll block expense and payload, wherein comprises in the physical layer controll block expense being used for the upstream bandwidth map that upstream bandwidth distributes.The signal of up direction adopts burst mode signal among the PON, the data transmission procedure of up direction need be according to the indication of the upstream bandwidth map in down direction physical layer controll block expense bandwidth information, the transmission that is to say up direction depends on down direction, and the transmission mode of up direction is different from down direction, this causes PON to be only applicable to have the star or the tree network of a host node, and can't be applied in the network of other type.If the data frame structure of the uplink and downlink direction that defines among the PON is applied among the OBTN, then can't satisfies the demand that OBTN is applicable to diverse network.Therefore, the data frame structure of the uplink and downlink that define among the PON and can't be applied to carry out among the OBTN transfer of data based on the data processing method that this data frame structure carries out.

Have data frame structure that defines in the network of electricity layer photoreactive layer characteristics and the data processing method of carrying out in the prior art and can't be applied to carry out among the OBTN transfer of data based on the data frame structure that defines.

Summary of the invention

The embodiment of the invention provides a kind of data processing method and data processing equipment, thereby solves data frame structure that defines in the network that has electricity layer photoreactive layer characteristics in the prior art and the problem that can't be applied to carry out among the OBTN transfer of data based on the data processing method that the data frame structure that defines carries out.

The embodiment of the invention provides a kind of data processing method, comprising:

Client signal is carried out encapsulation process generate the transmission frame, described transmission frame is carried out encapsulation process generate light burst unit OBU, described OBU comprises OBU expense and OBU payload, described OBU payload is used to carry described transmission frame, and described OBU expense comprises the demarcation on leading, the border that is used to identify described OBU that is used for receiver locking received power and recovered clock at least and is used to identify the source node address of described OBU and/or the node ID of destination node address;

Described OBU is carried out the electric light conversion process form light burst passage OBC, and generating the OBC expense of described OBC correspondence, described OBC expense comprises the bandwidth map of information that is used to the node ID that identifies described OBU or identify described OBC and is used to identify the OB of described OBC correspondence at least;

Described OBC expense is encapsulated in first control channel, and described first control channel is carried on and is exclusively used among the described OBC that transmits described first control channel.

OBC is carried out the electric light conversion process form OBU, described OBU comprises OBU expense and OBU payload, described OBU payload is used for carrying and transmits frame, and described OBU expense comprises the demarcation on leading, the border that is used to identify described OBU that is used for receiver locking received power and recovered clock at least and is used to identify the source node address of described OBU and/or the node ID of destination node address;

Described OBU is carried out decapsulation handle the described transmission frame of generation;

Described transmission frame is carried out decapsulation handle the generation client signal;

Extract the OBC expense from first control channel, described first control channel is carried on and is exclusively used among the described OBC that transmits described first control channel.

The embodiment of the invention provides a kind of data processing equipment, comprising:

The first client signal processing module is used for that client signal is carried out encapsulation process and generates the transmission frame;

The one OBU processing module, be used for that described transmission frame is carried out encapsulation process and generate light burst unit OBU, described OBU comprises OBU expense and OBU payload, described OBU payload is used to carry described transmission frame, and described OBU expense comprises the demarcation on leading, the border that is used to identify described OBU that is used for receiver locking received power and recovered clock at least and is used to identify the source node address of described OBU and/or the node ID of destination node address;

The one OBC processing module, be used for that described OBU is carried out the electric light conversion process and form light burst passage OBC, and generating the OBC expense of described OBC correspondence, described OBC expense comprises the bandwidth map of information that is used to the node ID that identifies described OBU or identify described OBC and is used to identify the OB of described OBC correspondence at least;

The first control channel processing module is used for described OBC expense is encapsulated into first control channel, and described first control channel is carried on and is exclusively used among the described OBC that transmits described first control channel.

The embodiment of the invention also provides a kind of data processing equipment, comprising:

The 2nd OBC processing module, be used for that OBC is carried out the electric light conversion process and form OBU, described OBU comprises OBU expense and OBU payload, described OBU payload is used for carrying and transmits frame, and described OBU expense comprises the demarcation on leading, the border that is used to identify described OBU that is used for receiver locking received power and recovered clock at least and is used to identify the source node address of described OBU and/or the node ID of destination node address;

The 2nd OBU processing module is used for that described OBU is carried out decapsulation and handles the described transmission frame of generation;

The second client signal processing module is used for that described transmission frame is carried out decapsulation and handles the generation client signal;

The second control channel processing module is used for extracting the OBC expense from first control channel, and described first control channel is carried on and is exclusively used among the described OBC that transmits described first control channel.

Clearly defined the data frame structure of photosphere and electricity layer in the technical scheme of the embodiment of the invention according to the characteristics of OBTN, the data processing method of carrying out based on the data frame structure of the photosphere of definition and electricity layer is applicable to that OBTN carries out transfer of data, thus the problem that has solved the data frame structure that defines in the network that has electricity layer photoreactive layer characteristics in the prior art and can't be applied to carry out among the OBTN transfer of data based on the data processing method of the data frame structure of definition.

Description of drawings

Fig. 1 is a kind of application schematic diagram of OBTN in the prior art;

Fig. 2 is a kind of structural representation of OB passage in the prior art;

Fig. 3 is the another kind of structural representation of OB passage in the prior art;

Fig. 4 is the schematic diagram of the hierarchical structure of OBTN of the present invention;

Fig. 5 is the structural representation of TPU of the present invention;

Fig. 6 is the structural representation of OBU of the present invention;

Fig. 7 is the structural representation of OBC expense of the present invention;

Fig. 8 is the structural representation of OBMS of the present invention;

Fig. 9 is the structural representation of control channel of the present invention;

Figure 10 is the structural representation of even type loop network;

Figure 11 is the structural representation of TPU in the even type loop network of the present invention;

Figure 12 is the structural representation of OBU in the even type loop network of the present invention

Figure 13 is the structural representation of OBC expense in the even type loop network of the present invention;

Figure 14 is the structural representation of OBMS expense in the even type loop network of the present invention;

Figure 15 is the structural representation of control channel in the even type loop network of the present invention;

Figure 16 is the structural representation of star network of the present invention;

Figure 17 is the structural representation of TPU in the star network of the present invention;

Figure 18 is the structural representation of OBU in the star network of the present invention;

Figure 19 is the structural representation of OBC expense in the star network of the present invention;

Figure 20 is the structural representation of control channel in the star network of the present invention;

The flow chart of a kind of data processing method that Figure 21 provides for the embodiment of the invention one;

The flow chart of a kind of data processing method that Figure 22 provides for the embodiment of the invention two;

The flow chart of a kind of data processing method that Figure 23 provides for the embodiment of the invention three;

The flow chart of a kind of data processing method that Figure 24 provides for the embodiment of the invention four;

The structural representation of a kind of data processing equipment that Figure 25 provides for the embodiment of the invention five;

The structural representation of a kind of data processing equipment that Figure 26 provides for the embodiment of the invention six.

Embodiment

Below by drawings and Examples, the technical scheme of the embodiment of the invention is described in further detail.

OBTN combines light burst-switched (Optical Burst Switching, be called for short: OBS), wavelength division multiplexing (Wavelength-division Multiplexing, be called for short: WDM) and the advantage of PON, the above-mentioned relatively network architecture also has the advantage of himself simultaneously.

Compare with OBS, OBTN has kept the characteristics that the photosphere break-through photoreactive layer of OBS converges, and the needs of having evaded OBS are the shortcoming of optical buffer flexibly.Compare with PON, OBTN has kept the characteristics that the PON photosphere converges, and has broken through the restriction that PON can only be used for star network and tree network simultaneously, can be applicable to multiple network; OB distributes more regularly among the OBTN, is easy to realize that EDFA amplifies, and realizes that particularly the EDFA of multi-wavelength amplifies, thereby has prolonged data transmission distance, has increased data transmission capacity; And OBTN can guarantee high QoS based on tranmission techniques; Compare with WDM, OBTN has kept WDM multi-wavelength and characteristics capacious; Node among the OBTN is to carry out transfer of data with the sub-wavelength passage of dividing (being the OB passage) simultaneously, and the available linking number of node is many; The little suitable bandwidth of transmission granularity is adjusted demand.

OBTN is based on the OB passage and carries out transfer of data, needs the characteristics of comprehensive OBTN photosphere and electricity layer to define the data frame structure of each layer, and the data frame structure of each layer that comprehensive OBTN photosphere and electricity layer characteristic define just can be applied to carry out among the OBTN transfer of data.And in the prior art, though OTN has set up the unified mechanism that comprises photosphere and electricity layer, but OTN is based upon on the basis of continuous mode signal, and the prerequisite that electricity layer expense is set is that the intermediate node among the OTN can be handled these expenses at the electricity layer, in other words, OTN only is applicable to the scene that continuous mode transmission, electricity layer converge.If the data frame structure of the photosphere that defines among the above-mentioned OTN and electricity layer is applied among the OBTN, owing to only under not meeting of photosphere break-through, arrive the electricity layer when data are by intermediate node in the transfer of data of OBTN, therefore the intermediate node of OBTN just can't be handled to realize some function electricity layer expense at the electricity layer, for example in the data transmission procedure to the monitoring function of data, thereby can't finish data transmission procedure.Therefore, the data frame structure of each layer that defines among the OTN and can't be applied among the OBTN based on the data transmission method of this data frame structure.In addition, downlink data frame has adopted different signal modes with uplink data frames among the PON, and need in the process of up direction transfer of data to happen suddenly (Burst) or transmission container (Transmission Container according to the upstream bandwidth map in the downlink data frame, be called for short: location T-CONT), promptly indicate starting position and the end position of Burst or T-CONT, this makes PON and data transmission method thereof be only applicable to the star of a host node or the tree-like network architecture, and can't be applicable to other network architectures such as annular or Mesh; Though PON combines the characteristics of photosphere and electricity layer, it does not clearly define the data frame structure of photosphere, data frame structure and the function distinguishing between the two and the contact of electricity layer; In addition, PON can utilize the Burst on the single wavelength to carry out transfer of data, but it does not consider to utilize Burst on the multi-wavelength to carry out the problem of transfer of data.Therefore, the data frame structure that defines among the PON and can't be applied to carry out among the OBTN transfer of data based on the data processing method that this data frame structure carries out.

Can't be applied to problem among the OBTN at the data frame structure that defines among OTN and the PON in the above-mentioned prior art and based on the data frame structure of definition, the embodiment of the invention has proposed to be fit to be applied to the data frame structure of OBTN, and based on the data transmission method and the data transmission set of above-mentioned data frame structure.Network can comprise symmetry network and asymmetry network by the application scenarios classification.Service transferring mode is asymmetric on sending direction and receive direction between node in the asymmetry network.For example in star/tree network, descending (host node arrives from node) direction adopts continuous mode signal transport service; Up (from the node to the host node) direction adopts the burst mode signal transport service.Up direction needs down direction indication bandwidth information etc.Service transferring mode is symmetrical (not getting rid of also has one way traffic, and one way traffic is a special case wherein) on sending direction and receive direction between node in the symmetry network, promptly all adopts the burst mode signal transport service on the both direction.In this manner, photosphere is non-identical with professional transmission direction with road expense direction.This is more common in annular and wireless mesh (Mesh) network, and wherein loop network can comprise the loop network of monocycle and the loop network of dicyclo.The data frame structure of photosphere and electricity layer can be applied to symmetry network and asymmetry network in the hierarchical structure of the OBTN that the present invention proposes.

Fig. 4 is the schematic diagram of the hierarchical structure of OBTN of the present invention, and as shown in Figure 4, the hierarchical structure of OBTN comprises photosphere, electricity layer and control channel.The electricity layer comprises that (Optical Burst Unit is called for short: OBU) layer in light burst unit; Photosphere comprises that (Optical Burst Channel is called for short: OBC) layer light burst passage; Control channel comprises the OBC expense of OBC layer, and the OBC expense is non-with the road expense.

Further, photosphere can also comprise that (Optical Burst MultiplexSection is called for short: OBMS) layer light burst multiplex section; Control channel can also comprise the OBMS expense of OBMS layer, and the OBMS expense is non-with the road expense.

Further, the electricity layer can also comprise that (Transport Payload Unit is called for short: TPU) layer the transmission Payload Unit.Ethernet, client signal such as SDH/SONET or E1/T1/E3/T3 can shine upon (i.e. encapsulation) to Gigabit Passive Optical Network encapsulation mode (G-PON Encapsulation Method, be called for short: GEM) frame, Generic Framing Procedure (Generic Framing Procedure, be called for short: GFP) frame or other client signal adaptation layer container, advance TPU with GEM frame, gfp frame or other client signal adaptation layer container encloses again.Wherein, TPU can cross over the border of OBU.

Perhaps, further, the electricity layer can also comprise the T-CONT layer.Client signal is Ethernet for example, SDH/SONET and E1/T1/E3/T3 etc.) be mapped to the GEM frame, the GEM frame is mapped to T-CONT again.

Hence one can see that, and in OBTN, client signal encapsulates into three kinds of mapping modes of process existence of OBU:

Mapping mode 1: client signal (Ethernet for example, SDH/SONET or E1/T1/E3/T3 etc.) be mapped to earlier in the client signal adaptation layer containers such as GEM frame or gfp frame, client signal adaptation layer containers such as GEM frame or gfp frame are mapped among the TPU again, and last TPU is mapped among the OBU again.

Mapping mode 2: client signal (for example Ethernet, SDH/SONET or E1/T1/E3/T3 or the like) is mapped in the gfp frame, and gfp frame is mapped among the OBU again; Perhaps, client signal is Ethernet for example, SDH/SONET and E1/T1/E3/T3 or the like) be mapped to the GEM frame, the GEM frame is mapped among the OBU again.Wherein, gfp frame or GEM frame can be crossed over the border of OBU.

Mapping mode 3: client signal (Ethernet for example, SDH/SONET or E1/T1/E3/T3 or the like) be mapped in the client signal adaptation layer containers such as GEM frame, client signal adaptation layer containers such as GEM frame are mapped among the T-CONT again, and last T-CONT is mapped among the OBU again.When adopting this kind mapping mode, OBTN can comprise the T-CONT layer at the electricity layer, and it can be realized and GPON system compatibility, be convenient to smooth upgrade.

Further, according to different scenes, the hierarchical structure of OBTN can also comprise OCh layer, OMS layer and OTS layer, and this which floor concrete definition and OTN is similar, specifically can be referring to the record of ITU-T in G.709.Correspondingly, control channel can also comprise OCh expense, OMS expense and OTS expense, and OCh expense, OMS expense and OTS expense also are non-with the road expense.

Expense among the OBTN mainly comprises with the road expense and non-ly comprises the OBU expense with two kinds of road expenses with the road expense, further, can also comprise TPU expense or T-CONT expense, non-ly comprises the OBC expense with the road expense, further can also comprise the OBMS expense.Wherein, non-ly be carried in the control channel with the road expense, control channel can be carried on and be exclusively used among the OBC that transmits this control channel, is exclusively used in the OBC that transmits this control channel and can be one or more; Perhaps control channel can (Optical Supervisory Channel be called for short: OSC) for Optical Supervisory Channel; If perhaps OBTN is applied in the asymmetry networks such as the capable or tree network of star, control channel can be carried on downlink frame.

Below by Fig. 5 to Fig. 9 the data frame structure of each layer among the OBTN is described in detail.

Fig. 5 is the structural representation of TPU of the present invention, and as shown in Figure 5, TPU comprises TPU expense and TPU payload.The TPU payload is used for the carrying client signal, and client signal can be data such as Ethernet, SDH/SONET or E1/T1/E3/T3.Client signal can encapsulate earlier in gfp frame, GEM frame or other client signal adaptation layer container, and then client signal adaptation layer container encloses is advanced in the TPU payload, thereby realizes client signal is encapsulated in the TPU payload.When the length of TPU payload during, can use the byte of fixed pattern to fill greater than the length summation of a plurality of client signal adaptation layer containers of carrying.

The TPU expense comprises head and TPU sign (TPU-ID).The TPU expense can also comprise that bit interleaves odd even (Bit Interleaved Parity, abbreviation: BIP) verification, state indication or bandwidth report further.Be specially:

1) head is used to realize that TPU delimits, and comprises the TPU length information, specifically comprises Length Indication, extended field and header check.Length Indication is meant the length of TPU payload, and unit is a byte; Because TPU is relevant with class of business, therefore the length of payload is elongated (also can be fixed length under some scene) basically, and Length Indication can reflect the length of complete TPU, and the length of TPU is used for TPU and delimits and completeness check.Extended field is used for head is expanded, for various application and function expansion lay the foundation from now on.Header check is used for the data of each field of frame header are carried out cyclic redundancy check (CRC); Determining for convenience the original position of frame, require in the frame header length of each field to fix, is exactly to adopt the fixedly length of 5byte such as the head of GEM frame in the GPON system, and this method of calibration can adopt a verification rule and an algorithm in the prior art.This method to the frame header verification, verification rule (as cyclic redundancy check (CRC)) that on the one hand can be by a few byte and algorithm is caught and synchronizing frame head, can also carry out verification and error correction to some important information (as payload length, gap marker etc.) on the other hand, reliability is higher.

2) TPU-ID is ID number of TPU, is used to identify TPU, so that different TPU is distinguished.It is mainly used in processes such as bandwidth adjustment, interconnection, monitoring or management.

3) the BIP verification is represented by the errored block ratio, uses when TPU is carried out the BIP verification, is used to monitor delivery quality and the performance of TPU.

4) state indication comprises that TPU's is back to mistake indication (TPU Backward Error Indication, be called for short: TPU-BEI), TPU back to defective indication (TPU Backward Defect Indication, be called for short: TPU-BDI), payload type and reserved field, be used to transmit warning information and the Performance Detection information that produces in the TPU passage.The state indication can realize alarming end to end and performance monitoring at the TPU passage.It should be noted that TPU-BEI and TPU-BDI transmit be the back to information and alarm, detection be reciprocal passage.Payload type is used for identifying the type of the client signal adaptation layer container that the TPU payload carries, and TPU can support multiple client signal adaptation layer container.

5) the bandwidth report is optionally, the bandwidth request information that is used to carry TPU.In as asymmetry networks such as star or tree networks, can select according to actual needs whether the bandwidth report to be joined in the TPU expense; In as symmetry networks such as loop network or Mesh networks, do not comprise the bandwidth report in the TPU expense.In actual design, the bandwidth report can be adopted the form of the DBR report (DynamicBandwidth Report, dynamic bandwidth report) among the similar GPON.

Fig. 6 is the structural representation of OBU of the present invention, and as shown in Figure 6, OBU comprises OBU expense and OBU payload.The OBU payload is used for carrying and transmits frame, and described transmission frame comprises client signal adaptation layer container, TPU or T-CONT, and wherein client signal adaptation layer container comprises gfp frame, GEM frame or other client signal adaptation layer container.

That the OBU expense comprises is leading, demarcation and node ID.Further, the OBU expense can also comprise BIP verification, state indication, payload sign, signalling path, Emergency Maintenance management information or power adjustment message.Be specially:

1) leading receiver locking received power and the recovered clock of being used for is so that the follow-up clock and data recovery that carries out.

2) delimit the border that is used to identify OBU, be convenient to the location of OBU expense and OBU payload.

3) node ID is used to identify source node address and/or the destination node address of OBU.At the intermediate node Frame is directly in the photosphere break-through, can not handle OBU, OBU (considers the situation of multicast or broadcasting at source node and destination node, more than one of destination node possibility) just can be processed to, therefore, directly adopt node ID to distinguish different OBU in embodiments of the present invention.If there are a plurality of OBU between the node, then adopt cascade to identify and distinguish different OBU.Because of adopting TPU-ID to distinguish different TPU among the OBU in the structure of TPU, then can adopt node ID+TPU-ID to distinguish TPU between the different nodes in the OBTN network.Node ID comprises destination node ID and source node ID.Intermediate node is to handle node ID in the OBU expense, so the node ID among the OBU is mainly used in source node and destination node, plays the effect of gap marker and verification.

4) the BIP verification is represented by the errored block ratio, uses when OBU is carried out the BIP verification, is used to monitor delivery quality and the performance of OBU.

5) the state indication is used to transmit warning information and the Performance Detection information that produces in the OBU passage, to realize alarm and performance monitoring end to end.It comprises: OBU-BEI (back to mistake indication), OBU-BDI (back is to the defective indication), OBU's is back to decide the indication of frame mistake (TPU Backward IncomingAlignment Error, abbreviation: OBU-BIAE) and reserved field.Wherein the back is different to warning information with the implication of Performance Detection information (OBU-BEI, OBU-BDI, OBU-BIAE) in the different application scene.In the symmetry network, the back is the relevant alarm and the Performance Detection information of reciprocal OBU passage to warning information and Performance Detection information representation, and in the asymmetry network, what the back was then represented to warning information and Performance Detection information is the relevant alarm and the Performance Detection information of down going channel.Further, the state indication can also comprise that Emergency Maintenance management information sends request mark, is used for the OBU request and sends Emergency Maintenance management information.It is optionally that Emergency Maintenance management information sends request mark, and just effective in the asymmetry network, this sign is invalid in the symmetry network, only as reserved field.In the symmetry network,, be carried on non-with in the expense of road so Emergency Maintenance management information sends request mark because intermediate node can't be handled the OBU expense.

6) the payload sign is used to identify the OBU payload.The payload sign comprises payload type and cascade sign.Payload type is used for identifying the type of the container that the OBU payload carries, container comprises client signal adaptation layer container, TPU or T-CONT, client signal adaptation layer container comprises GEM frame, gfp frame or other client signal adaptation layer container, and promptly payload type is used for identifying that the OBU payload carries is TPU, T-CONT, gfp frame, GEM frame or other client signal adaptation layer container; The cascade sign is used to identify the cascade state of OBU, and promptly whether OBU is cascade, and the cascade sequence number of this OBU.One or more OB can form OBU according to the cascade sign.Particularly, if being non-cascade then OBU, the cascade state of OBU forms by an OB; Form by a plurality of OB if the cascade state of OBU is cascade then OBU, for example can form OBU (this moment, OBU can also be called the OBU of cascade) by OB1 among Fig. 2 or Fig. 3 and OB3.If OBU is cascade, allows TPU to cross over the border of OBU, but do not allow T-CONT to cross over the border of OBU.Because of T-CONT can't cross over the border of OBU, so when T-CONT shines upon into OBU, can make T-CONT complete mapping to advance in the OBU payload by the method for change T-CONT length or change T-CONT quantity.

7) signalling path is used for providing the transmission passage of the common management control information of OBU.This signalling path only just is provided with in the asymmetry network, does not need this signalling path in the symmetry network.

8) the transmission passage of the Emergency Maintenance management information managing control information that is used to provide urgent.Whether the Emergency Maintenance management information among the OBU only just is provided with in the asymmetry network, at this moment, exist Emergency Maintenance management information to be identified with the correlating markings in the expense of road by non-among the actual OBU.In the symmetry network, do not need Emergency Maintenance management information among when identical (be OB passage) OBU with the control channel direction.

9) power is adjusted message as transmitting optical power information communication passage, is mainly used in to adjust the node transmitting optical power.Power is adjusted message and has been used for reference GPON, specifically can be referring to ITU G.984.It is optionally that power is adjusted message, by non-with whether transmitted power is adjusted message among the correlated identities bit-identify OBU in the expense of road.

Fig. 7 is the structural representation of OBC expense of the present invention, and as shown in Figure 7, the OBC expense is non-with the road expense, and it is arranged in the control channel.The OBC expense comprises node ID and bandwidth map.Further, the OBC expense can also comprise state indication, synchronous regime, identification field or Emergency Maintenance management information.Be specially:

1) node ID is used to identify OBU or is used to identify OBC.Concrete implication can be referring to the node ID in the OBU expense.Intermediate node is to handle node ID in the OBU expense, therefore handles in order to make intermediate node can carry out interconnection to OBC at photosphere, need node ID be set to distinguish different OBC in the road expense OBC non-.Particularly, node ID comprises destination node ID and/or source node ID.

2) bandwidth map is used to identify the information of the OB of OBC correspondence.Bandwidth map comprises length field, OB-ID, TPU-ID and bandwidth report.Be specially:

Length field is used for illustrating the bandwidth reporting quantities that comprises among this OBC corresponding OB quantity, TPU quantity and the TPU, wherein the bandwidth reporting quantities is only just effective in the application scenarios of symmetry, in asymmetrical application scenarios, the bandwidth report is carried in the TPU expense.Because of length field possesses very high importance, so it has increased CRC check, and repeat to send twice, i.e. length field 1 and length field 2.

OB-ID is used for identifying the OB that OBC comprises, and is used for promptly illustrating this OBC comprises which OB in the OB frame.

TPU-ID is used for identifying the TPU that OBC comprises, and promptly is used for which TPU that illustrates that this OBC comprises.Specifically referring to the TPU-ID field in the TPU expense.Need to prove whether corresponding transmission bandwidth is reported to comprise this TPU in the TPU-ID field.

The bandwidth request information that the bandwidth report is used to carry TPU.The bandwidth report is optionally, and in the symmetry network, the bandwidth report is arranged in the OBC expense; In the asymmetry network, can according to circumstances select whether in certain TPU expense, to add the bandwidth report.

3) the state indication is used to transmit warning information and the Performance Detection information that produces in the OBC passage, realizes that OBC alarms and performance monitoring end to end.It comprises that (OBC Forward Defect Indication is called for short: OBC-FDI) and Emergency Maintenance management information transmission request mark for the forward direction defective indication of OBC-BEI (back to mistake indication), OBC-BDI (back is to the defective indication), OBC-BIAE (back is to decide the indication of frame mistake), OBC.Because it is non-with the road expense that each node all can be handled, therefore non-increase in the road expense OBC end to end warning information and Performance Detection information help to strengthen monitoring, also can be fit to the different application scenarios of OBTN.But at some application scenarios, some warning information and Performance Detection information may not need.Emergency Maintenance management information sends request mark and is used for OBC request transmission Emergency Maintenance management information.As previously mentioned, the transmission of the Emergency Maintenance management information in OBC expense request mark is only just effective in the symmetry network.This is because in the application scenarios of symmetry, there is not host node aspects such as (have only may have a host node) management in professional the transmission, and OBC is the photosphere break-through at intermediate node, this just means Emergency Maintenance management information if send to the words of host node, can not only be carried among the OBU, and it is manageable non-with in the expense of road to be carried on host node.In the asymmetry network, for example in star/tree network framework, because also there is a host node in professional the transmission, so Emergency Maintenance management information can be carried in the OBU expense.

4) identification field is used to identify the monitoring function that the OBC expense possesses.It comprises that Emergency Maintenance management information sends sign, power adjustment sign, forward error correction (Forward Error Correction, be called for short: FEC) use sign, penetrate sign and CRC (Cyclical Redundancy Check, abbreviation: CRC).Emergency Maintenance management information sends sign and is used for identifying in OBU expense or the OBC expense whether comprise Emergency Maintenance management information, promptly identifies OBU/OBC and whether sends Emergency Maintenance management information; Power adjustment sign is used for identifying the OBU expense and whether has power adjustment message; FEC uses sign to be used for identifying OBU and whether uses FEC, wherein can comprise FEC in the OBU expense, and is not shown among Fig. 6; Penetrating sign only just uses in the symmetry network, (the wide manager of master tape is the Bandwidth Broker of a node of OBTN network appointment to be used for identifying the wide manager of break-through master tape, then the Bandwidth Broker of all the other nodes is from Bandwidth Broker) OBC of place node, promptly be mainly used in the bandwidth adjustment of loop network; CRC is used for the checking mark field, because what comprise in the identification field all is some important informations, so the correctness in order to guarantee to transmit needs in addition verification.

5) synchronous regime is used to identify the synchronizing quality grade, and it has used for reference SDH, specifically can be referring to ITUG.707.Synchronous regime is also just just effective in the symmetry network, and in the asymmetry network, because there is a host node, clock can lock the host node clock, does not therefore need synchronous regime.

6) the transmission passage of the Emergency Maintenance management information managing control information that is used to provide urgent.Whether the Emergency Maintenance management information in the OBC expense only just is provided with in the asymmetry network, at this moment, exist Emergency Maintenance management information to be identified with the correlating markings in the expense of road by non-among the actual OBC.In the symmetry network, do not need Emergency Maintenance management information among when identical (be OB passage) OBC with the control channel direction.

Fig. 8 is the structural representation of OBMS of the present invention, and as shown in Figure 8, the OBMS expense is non-with the road expense, is arranged in the control channel.The OBMS expense comprises wavelength ID and state indication.Further, the OBMS expense also comprises multi-frame indication, markers, signalling path, APS field and Length Indication.Be specially:

1) wavelength ID is used to identify wavelength or the wavestrip of carrying OBMS.Because OBMS may be carried on single wavelength or the multi-wavelength, different wavelength or the OBMS on the wavestrip distinguish by wavelength ID.

2) the state indication is used to transmit warning information and the Performance Detection information in the OBMS passage, realizes that OBMS alarms and performance monitoring end to end.Mainly comprise: OBMS-BEI (back is to the mistake indication), OBMS-BDI (back is to the defective indication), OBMS-FDI (indication of forward direction defective).It should be noted that this part is the state indication of OBMS layer, different with the non-level of aforesaid OBC with entity with the monitoring of the case pointer section in the expense of road.Because it is non-with the road expense that each node all can be handled, therefore alarm end to end with Performance Detection information and help to strengthen monitoring at the non-OBMS that increases in the road expense, also can be fit to the different application scenarios of OBTN.But at different application scenarioss, some alarm and Performance Detection information may not need.

3) the multi-frame indication is used to indicate OBMS multi-frame state, and this OBMS multi-frame state can be used for being provided with the interval of the OB among the OBC.It is the interval that node can be provided with OB among the OBC according to the OBMS multi-frame state of multi-frame indication indication.If OBMS multi-frame state is no multi-frame, then among the OBC OB be spaced apart the frame period; If OBMS multi-frame state is the multi-frame of 2 frames, then among the OBC OB be spaced apart 2 times of frame periods; By that analogy.Multi-frame is mainly used in increases OBC quantity, for example, if can support 64 OBC (no cascade) under the situation of 125us one frame, then supports the 500us multi-frame can support 256 OBC (no cascade).The effect of multi-frame is the linking number that increases port under the situation that does not change the ports physical characteristic.

4) markers is used for identified time information.In time, is marked in the asymmetry network and is mainly used in range finding.Be mainly used in the symmetry network synchronously, host node sends markers, receives markers through ring again after the last week, thereby measure the girth of ring, (Fiber Delay Line, be called for short: FDL), the girth that makes ring is the integral multiple of frame length to regulate fibre delay line with this.Another purposes in the symmetry network is mainly used in protection and switches, and during the control channel fault, node can receive up-to-date bandwidth map information according to the time scale information of twocouese.It comprises:

OSC-FEC is used to identify control channel (OSC) and whether uses FEC.In the symmetry network, because in OSC, there are a plurality of OBMS expenses, therefore also there are a plurality of OSC-FEC, can carry out majority vote.In the asymmetry network, have only an OBMS expense, do not have the majority vote problem.

Counter is used to carry count value, concrete enforcement can adopt every frame add 1 or 1 the mode of subtracting count, with the reflection temporal information.

5) signalling path is used for providing the transmission passage of OBMS common management control information, and usage can be referring to the DCC passage among the SDH.

6) the APS field is used to realize automatic protection functions, and the embedding signaling channel of protection purpose is protected the response time faster to guarantee to have, and improves the survivability of network.Its usage can be used for reference the K1/K2 byte in the SDH system.

7) Length Indication is used for being identified at the information of this OBMS OBC.This field comprises 2 identical backups: length field 1 and length field 2, both can carry out verification.Length Indication can comprise:

Whether bandwidth map has or not sign, is used for identifying the OBC expense and whether comprises bandwidth map, promptly indicate OBC to need bandwidth allocation algorithm to carry out the dynamic bandwidth configuration.Carry out the dynamic bandwidth adjustment if desired, just comprise bandwidth map in the OBC expense.In actual design, bandwidth allocation algorithm can adopt the algorithm of the DBA (Dynamic Bandwidth Assignment, Dynamic Bandwidth Allocation) among the similar GPON.If do not need to carry out the dynamic bandwidth adjustment, be mainly used in and carry out static configuration, perhaps adopt standalone protocol for example GMPLS etc. carry out the situation of dynamic-configuration, at this moment, do not comprise bandwidth map in the OBC expense.

OBC quantity is used for identifying the quantity of the OBC of OBMS.

CRC check is used for the check length indication field, because the Length Indication field is an important information, the therefore correctness in order to guarantee to transmit needs in addition verification.

Fig. 9 is the structural representation of control channel of the present invention, and as shown in Figure 9, control channel can be carried on and be exclusively used among the OBC that transmits control channel, and perhaps this control channel can be OSC, and perhaps this control channel can also adopt the control channel of other form.Control channel comprises frame head, BIP verification and OBC expense, and further, this control channel can also comprise the OBMS expense.The BIP verification is used to monitor the delivery quality and the performance of control channel.The concrete structure of the OBMS expense in the control channel can be referring to Fig. 8, and the concrete structure of OBC expense can be not described in detail referring to Fig. 7 herein.Especially, in the asymmetry network, control channel can be carried in the downlink frame.Further, control channel can also comprise state indication or OMS/OTS expense.

In the symmetry network, non-transmission direction with the corresponding OBC of road expense and its is consistent.With the loop network is example, and this loop network is even type loop network, and as shown in figure 10, Figure 10 is the structural representation of even type loop network.Comprise control channel and data channel in the optical fiber shown in the figure, data channel adopts wavelength X 1～λ m, and control channel adopts wavelength X c.The situation that corresponding field is transmitted in OB and the control channel in the data channel can draw from Figure 10.Evenly the characteristics of type loop network are exactly all to have transfer of data between the node.Wherein can be with a node as host node, and all the other nodes are as from node, for example among Figure 10, S-Node can be used as host node, and L-Node can be used as from node.Control channel all can be carried out electric treatment at each node, and that transmit in the data channel is OB, and promptly ring is gone up and adopted the OB passage to connect between the node.That the data block of various pattern fills is represented among Figure 10 is the OB that transmits in data channel, and the black data piece is represented is the field of control channel output, also can draw thus, data channel is to be operated under the burst mode, and control channel is to be operated under the continuous mode.Especially, also can distribute one or more OB passage to be used to carry control channel (this moment, control channel was operated under the burst mode), in other words, control channel can be carried on and be exclusively used among the OBC that transmits first control channel, has not so just needed the Receiver And Transmitter of independent control channel.Phase relation between data channel and the control channel is shown in right half part among Figure 10, and the frame head between two passages aligns.

Data frame structure to the photosphere that defines in the even type loop network and electricity layer specifically describes below.

Figure 11 is the structural representation of TPU in the even type loop network of the present invention, and as shown in figure 11, the TPU expense comprises head, TPU-ID, BIP verification and state indication.Head comprises Length Indication, extended field and header check, and the state indication comprises TPU-BEI, TPU-BDI, payload type and reserved field.Particularly:

1) Length Indication: the bandwidth of considering T-CONT channel transfer data allows to reach 2.5G, 10G even bigger speed range, the length in TPU payload data district will reach 38880byte, 155520byte or bigger quantity, and scope that therefore can Length Indication is set to 20bit.

2) extended field can be used for purposes such as header extension, is set to 7bit.

3) header check is used for the data of each field of frame header are carried out Cyclic Redundancy Check, is set to 13bit.

4) TPU-BEI and TPU-BDI identify the back to the apparent defective indication of mistake indication and back of TPU respectively, are set to 4bit and 1bit respectively.

5) TPU-ID is used to identify the TPU in the OBU, because TPU represents is a class business, is set to 8bit.TPU-ID only arranges 5 classes at present, and T-CONT type concrete and among the GPON is identical.Can adopt the node ID+TPU-ID among the OBU to identify TPU together.Bit9～bit12 of the Alloc-ID of TPU-ID in can corresponding GPON, but activate ID and unallocated ID has increased 1bit again in order to identify.In addition, the reserved bit among the TPU-ID is 3bit, and its usage can be referring to the description in the OBC expense.

6) payload type is set to 2bit, has defined GEM (referring to the GPON standard), autgmentability GEM (Extended GPON Encapsulation Mode) and GFP at present, further, can also utilize the field of reservation to expand according to actual needs.

In even type loop network, the TPU expense does not comprise the bandwidth report.Because the possible break-through host node of OBU, host node can't receive in the TPU expense if be placed on, so be arranged at the bandwidth report non-with in the expense of road.

Figure 12 is the structural representation of OBU in the even type loop network of the present invention, and as shown in figure 12, that the OBU expense comprises is leading, demarcation, BIP verification, node ID, state indication, payload sign and power are adjusted message.Particularly:

1) in even type looped network, it is main by the relevant information (reason is that intermediate node can't obtain relevant information from OBU) on the control channel that node carries out dredging of OB passage, so destination node ID and source node ID among the OBU, mainly be used in source node and destination node, play the effect of channel-like sign and verification, wherein destination node ID and source node ID respectively are set to 12bit.Why destination node ID and source node ID are provided with 12bit, mainly are for compatible star network, have the demand of beam split in 1: 1024 in the star network, and needing node ID is more than the 10bit.

2) OBU-BEI, OBU-BDI, OBU-BIAE are mainly used in Burst and delimit error back.What above-mentioned each indication was indicated is the OB defective passback that receives.OBU-BEI is set to 4bit, and OBU-BDI and OBU-BIAE respectively are set to 1bit.In the state indication last reserved bit and evenly is being arranged in the OBC expense in the type looped network.And in star network, be used as the application of Emergency Maintenance management information.

3) 8bit of Yu Liuing in even type looped network as reserved field.In even type looped network,, need in the OBU expense, signalling path be set, so 8bit is as reserved field because there is control channel.And the 8bit of this reservation can be used as signalling path in star network, is used for the transmission of maintenance management information common between node.

Whether 4) power adjustment message is optionally, sent by non-the appointment with the road expense.Power is adjusted message can be set to 120byte.Under the situation of cascade, power is adjusted message and only is present among first OBU.

5) payload type in the payload sign is set to 2bit, and the cascade sign is set to 6bit.Payload type has defined TPU, gfp frame, T-CONT and GEM frame at present.

Evenly in the type loop network, the OBU expense does not comprise Emergency Maintenance management information, because the possible break-through host node of OBU, and host node can't receive the OBU expense, so Emergency Maintenance management information need be arranged at non-with in the expense of road.In addition, the byte-sized that all the other fields are provided with in the above-mentioned OBU expense can specifically be not described in detail referring to shown in Figure 11.

Figure 13 is the structural representation of OBC expense in the even type loop network of the present invention, and as shown in figure 13, the OBC expense comprises node ID, state indication, synchronous regime, identification field, bandwidth map and Emergency Maintenance management information.Particularly:

1) in even type loop network, the node ID in the OBC expense comprises destination node I D and source node ID, and wherein destination node ID and source node ID respectively are set to 12bit.Node ID is mainly used to identify OBC, may comprise a plurality of OB (situation of corresponding OBU cascade) among the OBC, and node ID can be used for indicating the allocated bandwidth situation.Node ID belongs to significant field in the OBC expense, node carries out interconnection according to node ID, and numerical value is identical with relevant field among the OBU.But the node ID among the OBU mainly is used in source node and destination node, plays the effect of channel-like sign and verification.Why destination node ID and source node ID are provided with 12bit is for compatible star network, has the demand of beam split in 1: 1024 in star network.

2) OBC-BDI and OBC-FDI are respectively the back to defective indication and the indication of forward direction defective of OBC, and it is set to 1bit respectively.FDI in the OBC expense is mainly used in the indication of forward direction defective, for example slotting down AIS etc., and this mainly is because can't carry out electric treatment to OB at intermediate node, so OBC-BDI and OBC-FDI need be arranged in the control channel (OSC).Different with OBU is, because intermediate node can't detect BEI and BIAE, thus do not comprise BEI and BIAE in the OBC expense, and destination node can be by the respective field transmission in the OBU expense to the result of BEI and BIAE detection.

3) Emergency Maintenance management information transmission request mark is used for sending Emergency Maintenance management information from node to the host node application, and host node receives continuously to be needed to respond as early as possible after three frame Emergency Maintenance management information send request.Emergency Maintenance management information sends request mark and is set to 1bit.

4) Emergency Maintenance management information sends sign and is provided with 3bit, and " 1 " represents the follow-up Emergency Maintenance management information that has, and 3bit can carry out majority vote.Because Emergency Maintenance management information can change the OBC overhead length, so need to increase verification scheme.

5) penetrate sign and also be provided with 3bit, " 1 " expression penetrates host node, is mainly used in the bandwidth adjustment in the loop network, also needs to carry out majority vote.This field belongs to significant field, so need to increase check mechanism.

6) power adjustment sign is used for identifying OBU and whether comprises power adjustment message, and it is set to 1bit.

7) OB quantity is provided with 14bit, and only there is the demand of 1024 splitting ratios in the OB quantity that can comprise at most among OBC of this expression at present much larger than 1024 in star network, so operated by rotary motion 12bit gets final product, other 2bit can be as reservation.Why in OB quantity 14bit being set, mainly is because the TPU number needs is wanted 5bit, is complete byte in order to guarantee length field, and the bit that has more has been set in the OB quantity.

8) comprise the sign that whether sends the bandwidth report among the TPU-ID.In even type loop network, the bandwidth report is arranged in the OBC expense, because the bandwidth report sends to host node, and not all OBU terminates at host node.

9) evenly in the type loop network, Emergency Maintenance management information is arranged in the OBC expense, because OBU might the break-through host node, if just be placed on that host node can't receive Emergency Maintenance management information in the OBU expense.

10) comprise synchronous regime in the OBC expense, its usage is identical with S1 byte among the SDH.Because have only control channel to carry out electric treatment,, promptly be arranged in the control channel so synchronization status byte can only be arranged in the OBC expense at each node.

The byte-sized that each field is provided with in the above-mentioned OBC expense can be referring to shown in Figure 12.

Figure 14 is the structural representation of OBMS expense in the even type loop network of the present invention, and as shown in figure 14, the OBMS expense comprises wavelength ID, multi-frame indication, markers, signalling path, APS field, state indication and Length Indication.Particularly:

1) in even type loop network, may there be a plurality of OBMS sections (for example, corresponding wavelength of each OBMS section) on the control channel; And in star network, only have an OBMS section (in the framework of similar WDM-PON, the down going channel that different wave length is corresponding different) in the down going channel.

Wavelength ID is unified to be arranged in the OBMS expense.Wherein, the ID of the single wavelength of 0～191 sign, promptly maximum 192 ripples of supporting; 192～254 sign wavestrip ID; The full wavelength of 255 signs, promptly OBC comprises an all wavelengths (except the wavelength at control channel place) in the optical fiber.

2) the multi-frame indication is used to indicate OBMS multi-frame state, and this OBMS multi-frame state is used to increase OBC quantity, for example, if under the situation of 125us one frame, supports 64 OBU, then can support 256 OBU under the situation of 500us multi-frame.The multi-frame indication can be set to 8bit.

3) be marked on the time and be mainly used in range finding in the star network, evenly be mainly used in synchronously in the type looped network, host node sends markers, receives markers through ring again after the last week, thereby measures the girth of ring, regulates FDL with this, and the girth that makes ring is the integral multiple of frame length.The time be marked on another purposes in the even type looped network, be mainly used in protection and switch, node can receive up-to-date bandwidth map information according to the time scale information of twocouese during the control channel fault.Highest order is OSC-FEC in the markers field, indicates whether control channel (OSC) uses FEC, and " 1 " expression is used.In even type looped network,,, can utilize OSC-FEC to carry out majority vote so also there are a plurality of OSC-FEC because in control channel (OSC), there are a plurality of OBMS expenses.And in star network, have only an OBMS expense, because of there not being the majority vote problem.Markers is set to 32bit.

4) signalling path is set to 12bit, and its usage is identical with the DCC passage of SDH.

5) OBMS-FDI is mainly used in the indication of forward direction defective, for example slotting down AIS etc., and this mainly is because intermediate node can't carry out electric treatment to OBMS, so OBMS-FDI need be arranged in the control channel (OSC).Because intermediate node can't detect OBMS-BEI, therefore make reserved field into.Because non-some maintenance management informations that are mainly used to transmit the OB passage with the road expense, so under the general situation, can adopt in the MESH network utilizes the control channel frame head to carry out synchronous method, it is identical that the implication of OBMS-BIAE and control channel are decided the frame mistake, also meaningless, so as reservation, relevant alarm moves on in the OTS expense of control channel with the respective field of OBMS-BIAE.

6) bandwidth map has or not and is used for identifying the OBC expense and whether comprises bandwidth map, be whether OBC needs bandwidth allocation algorithm to carry out dynamic-configuration (in the actual design, bandwidth allocation algorithm can adopt the algorithm of the DBA among the similar GPON), " 1 " sign need be carried out the dynamic bandwidth adjustment, and just OBC is non-with comprising bandwidth map (corresponding to aforementioned mapping mode 1) in the expense of road." 0 " sign does not need to carry out the dynamic bandwidth adjustment, can carry out static configuration or adopt standalone protocol for example GMPLS etc. carry out dynamic-configuration (corresponding to aforementioned mapping mode 2), at this moment, do not comprise bandwidth map in the OBC expense.

The byte-sized that each field is provided with in the above-mentioned OBMS expense can be referring to shown in Figure 13.

Figure 15 is the structural representation of control channel in the even type loop network of the present invention, and as shown in figure 15, control channel can be for the OB of OSC or appointment etc.Particularly, OSC-BEI, OSC-BDI, OSC-BIAE, the OSC-FDI in the indication of its state represents that respectively the back of control channel indicate to decide frame mistake and forward direction defective to defective indication, back to mistake indication, back.In even type loop network, may there be a plurality of OBMS sections (for example, corresponding wavelength of each OBMS section) on the control channel.Description to other field of control channel in the even type loop network can be not described in detail referring to aforementioned content herein.In addition, the byte-sized that each field is provided with in the control channel can be referring to shown in Figure 15.

In the asymmetry network, non-opposite with the transmission direction of the OBC of its indication with the road expense.With the star network is example, and as shown in figure 16, Figure 16 is the structural representation of star network of the present invention.S-Node is a host node, and L-Node is from node, and there is a host node exactly in the characteristics of star network, from node only and host node communicate.Is down direction from host node to the direction from node, and the direction from the node to the host node is a up direction.What describe among the figure is the situation that multi-wavelength is used.Down direction, for same wavelength, host node adopts the mode of photosphere broadcasting and sends data with the continuous mode signal, by splitter light signal is distributed to each from node again.Up direction for same wavelength, adopts burst mode signal to send data from node, and respectively the data that send from node realize that through mixer photosphere converges, and host node adopts the receiver of burst mode.

Figure 17 is the structural representation of TPU in the star network of the present invention, and as shown in figure 17, the TPU expense comprises head, TPU-ID, BIP verification, state indication and bandwidth report.Head comprises Length Indication, extended field and header check, and the state indication comprises TPU-BEI, TPU-BDI, payload type and reserved field.Particularly, the function of each field is to evenly the type loop network is similar in the star network, difference is: in even type loop network, do not comprise the bandwidth report in the TPU expense, because the possible break-through host node of OBU, if bandwidth report is arranged in the TPU expense then host node can't receive, thus the bandwidth report is arranged at non-with in the expense of road, but in star network, the bandwidth report can be arranged in the TPU expense.The byte-sized that each field is provided with in the above-mentioned TPU expense can be referring to shown in Figure 17.

Figure 18 is the structural representation of OBU in the star network of the present invention, and as shown in figure 18, that the OBU expense comprises is leading, demarcation, BIP verification, node ID, state indication, payload sign, signalling path, Emergency Maintenance management information and power adjustment message.Particularly:

1) in star network, the destination node of OBU is host node usually, and the destination node ID of host node is a fixed value.Why destination node ID is set mainly is to be star and loop network photosphere intercommunication reservation use.The source node ID that is set to 12bit supports 4096 values, has surpassed the maximum splitting ratio demand of present star network 1: 1024.

2) DS-BEI, DS-BDI and DS-BIAE are respectively the back to mistake indication, back to defective indication and back to deciding the frame mistake of downstream signal.Wherein, the back is mainly used in downlink frame and delimits error back to deciding the frame mistake.Above-mentioned indication is represented is the defective passback of the downstream signal that receives.

3) last the reservation bit in the state indication for Emergency Maintenance management information sends request mark, is used for the application of Emergency Maintenance management information in star network.In even type loop network, Emergency Maintenance management information sends request mark and is arranged in the OBC expense.Host node receives to be needed to respond as early as possible after Emergency Maintenance management information sends request.

4) the cascade sign is used to identify the cascade state of OBU.

5) signalling path is used to transmit maintenance management information common between node.In star network, comprise signalling path.And in even type loop network, because there is control channel, so need in the OBU expense, signalling path be set.Therefore in even type loop network, signalling path is set to reserved byte.

6) in star network, Emergency Maintenance management information can only report by OBU, so comprises Emergency Maintenance management information in the OBU expense.And in even type loop network, do not comprise Emergency Maintenance management information in the OBU expense, because OBU might the break-through host node, host node can't receive in the OBU expense if Emergency Maintenance management information is arranged at, so Emergency Maintenance management information is arranged in the OBU expense.

Whether 7) power adjustment message is optionally, specified by the OBC expense to send.Under the situation of cascade, power is adjusted message and only is present among first OBU.

The byte-sized that each field is provided with in the above-mentioned OBU expense can be referring to shown in Figure 18.

Figure 19 is the structural representation of OBC expense in the star network of the present invention, and as shown in figure 19, the OBC expense comprises node ID, state indication, identification field, bandwidth map and reserved field.Particularly:

1) in star network, the node ID in the OBC expense is mainly used to identify OBC, indicates the allocated bandwidth situation, belongs to significant field, and node can carry out the setting of OBC according to node ID.The situation that is provided with of node ID is identical with the OBU expense, and promptly the destination node ID that comprises in the node ID is star and loop network photosphere intercommunication reservation use.

2) OBC-BEI, OBC-BDI, OBC-BIAE are respectively the back to mistake indication, back to defective indication and back to deciding the frame mistake of OBU.

3) in star network, Emergency Maintenance management information sends request mark and is arranged in the OBU expense, so does not comprise in the OBC expense that Emergency Maintenance management information sends request mark.

4) Emergency Maintenance management information sends sign and is set to 3bit, and " 1 " represents the follow-up Emergency Maintenance management information that has, and 3bit can carry out majority vote.Because Emergency Maintenance management information can change the OBC overhead length, so need to increase verification scheme.

5) in star network, do not penetrate the situation of node, therefore penetrate sign and make reserved field (3bit) into.

6) power adjustment sign is used for indicating OBU whether to comprise power adjustment message.

7) OB quantity has been arranged 14bit, and only there is the demand of 1024 splitting ratios in the OB quantity that can comprise at most among OBC of this expression at present much larger than 1024 in star is used, so operated by rotary motion 12bit gets final product, other 2bit can be as reservation.Why in OB quantity 14bit being set, mainly is because the TPU number needs is wanted 5bit, is complete byte in order to guarantee length field, and the bit that has more has been set in the OB quantity.

8) comprise the sign that whether sends the bandwidth report among the TPU-ID.In even type loop network, the bandwidth report is arranged in the OBC expense.Because the bandwidth report sends to host node, and not all OBU terminates at host node.In star network, the bandwidth report is arranged in the TPU expense.

9) in star network, Emergency Maintenance management information is arranged in the OBU expense, so does not comprise Emergency Maintenance management information in the OBC expense.In even type loop network, Emergency Maintenance management information is arranged in the OBC expense.

10) evenly in the type loop network, comprise synchronous regime in the OBC expense, its usage is identical with S1 byte among the SDH.And in star network, this byte because under the general situation, is to lock host node clock from node as reservation.

The byte-sized that each field is provided with in the above-mentioned OBC expense can be referring to shown in Figure 19.

The OBMS expense comprises wavelength ID, multi-frame indication, markers, signalling path, APS field, state indication and Length Indication.Particularly, the specific descriptions to above-mentioned each field of OBMS can repeat no more referring to the content of putting down in writing in above-mentioned Figure 14 and the 26S Proteasome Structure and Function description to OBMS in the even type loop network herein.

Figure 20 is the structural representation of control channel in the star network of the present invention, as shown in figure 20, control channel is carried in the downlink frame, particularly, in star network, only there is an OBMS section (in the framework of similar WDM-PON, the down going channel that different wave length is corresponding different) in the down going channel; In star network, because the various non-of down direction followed downlink frame with the road expense, that is to say if there are a plurality of wavelength in down direction, non-ly be carried on the different wave length, so monitoring field and OTS/OMS expense in the state indication are all meaningless with the road expense.Because there is payload in the down direction of star network, need reduce amount of overhead simultaneously, so the OTS/OMS overhead part of state indication and reservation is omitted all as far as possible.

The data frame structure of the photosphere of above-mentioned definition and electricity layer and be applicable to OBTN, thereby the problem that has solved the data frame structure that defines in the network that has electricity layer photoreactive layer characteristics in the prior art and can't be applied to carry out among the OBTN transfer of data based on the data processing method of the data frame structure of definition based on the method that the data frame structure of definition carries out data processing.

Based on the data frame structure of photosphere among the OBTN of above-mentioned definition and electricity layer, the embodiment of the invention has proposed a kind of data processing method, as shown in figure 21, the flow chart of a kind of data processing method that Figure 21 provides for the embodiment of the invention one, this method comprises:

Step 101, client signal is carried out encapsulation process generate to transmit frame, carry out encapsulation process generation OBU to transmitting frame, this OBU comprises OBU expense and OBU payload, the OBU payload is used for carrying and transmits frame, and the OBU expense comprises the demarcation on leading, the border that is used to identify OBU that is used for receiver locking received power and recovered clock and is used to identify the source node address of OBU and/or the node ID of destination node address;

Further, the OBU expense can also comprise BIP verification, state indication, payload sign, signalling path, Emergency Maintenance management information or power adjustment message in the present embodiment.The concrete structure of OBU expense can repeat no more referring to Fig. 6 and to the specific descriptions of Fig. 6 herein.

In the present embodiment, client signal can be Ethernet, and SDH/SONET or E1/T1/E3/T3 transmit frame and can be TPU, gfp frame, GEM frame or T-CONT.Wherein, TPU comprises TPU payload and TPU expense, and the TPU payload is used for the carrying client signal, and the TPU expense comprises the head of the demarcation that is used to realize TPU and is used to identify the TPU-ID of TPU; Further, the TPU expense can also comprise BIP verification, state indication or bandwidth report.Specifically can repeat no more referring to Fig. 5 and to the specific descriptions of Fig. 5 herein.

When the transmission frame was TPU, step 101 comprised: client signal is carried out encapsulation process generate TPU, TPU is carried out encapsulation process generate OBU.Particularly, client signal can be carried out encapsulation process and generate gfp frame or GEM frame, gfp frame or GEM frame are carried out encapsulation process generation TPU, again TPU be carried out encapsulation process and generate OBU.

When the transmission frame was gfp frame, step 101 comprised: client signal is carried out encapsulation process generate gfp frame, gfp frame is carried out encapsulation process generate OBU.

When the transmission frame was the GEM frame, step 101 comprised: client signal is carried out encapsulation process generate the GEM frame, the GEM frame is carried out encapsulation process generate OBU.

When the transmission frame was T-CONT, step 101 comprised: client signal is carried out encapsulation process generate T-CONT, T-CONT is carried out encapsulation process generate OBU.Particularly, client signal can also be carried out encapsulation process and generate GEM frame or gfp frame, GEM frame or gfp frame are carried out encapsulation process generation T-CONT, T-CONT be carried out encapsulation process generate OBU.

Step 102, OBU is carried out the electric light conversion process form OBC, and generate the OBC expense of OBC correspondence, the OBC expense comprises the bandwidth map of information that is used to identify the node ID of OBU or sign OBC and is used to identify the OB of OBC correspondence;

Further, the OBC expense can also comprise state indication, synchronous regime, identification field or Emergency Maintenance management information in the present embodiment, specifically can repeat no more referring to Fig. 7 and to the specific descriptions of Fig. 7 herein.

In OBTN, the interval relative fixed between the length of OB and the adjacent OB when the length of OB and the change of the interval between the adjacent OB, need be prenoticed the interdependent node on the link.Form the OB frame with the OB in one-period.The OB of different cycles same position forms an OBC.OBC is made up of the OB on a wavelength or a plurality of wavelength.In this step, OBU is carried out the electric light conversion process generate OB, a plurality of OB rearrange the OB frame, and the OB by each OB frame same position on one or more wavelength forms OBC again.For example, the OBC of formation can be as Fig. 2 or shown in Figure 3.

Step 103, the OBC expense is encapsulated in first control channel, first control channel is carried on and is exclusively used among the OBC that transmits first control channel;

The concrete structure of first control channel can repeat no more referring to Fig. 9 and to the specific descriptions of Fig. 9 herein, and first control channel in the present embodiment does not comprise the OBMS expense.

Further, present embodiment can also comprise the step that sends the OBC and first control channel.

Each step can be carried out by the node in the network in the present embodiment, and this node can be used as source node.Present embodiment can be applicable in the symmetry network.When in the loop network that is applied to monocycle, further, present embodiment can also comprise the step that receives first control channel, this first control channel is to be generated and sent by other node that has received the OBC and first control channel, when other node can send first control channel to this node simultaneously when this node sends data.When in the loop network that is applied to dicyclo, present embodiment can also comprise the step that receives second control channel, this second control channel is to be generated and sent by other node that has received the OBC and first control channel, and this second control channel is carried on another and is exclusively used among the OBC that transmits second control channel.When other node can send second control channel to this node simultaneously when this node sends data.

In the time of in being applied to the asymmetry network, present embodiment can not comprise and generates the OBC expense and the OBC expense is encapsulated step in first control channel into.The node of carrying out each step this moment be in the asymmetry network from node.Further, present embodiment can also comprise the step that receives second control channel, and this second control channel is generated and sent to from node by host node in the asymmetry network.Host node generates the OBC expense after receiving the OBC that sends from node, the OBC expense is encapsulated into second control channel and second control channel is sent to from node.

The flow chart of a kind of data processing method that Figure 22 provides for the embodiment of the invention two, as shown in figure 22, this method comprises:

Step 201, client signal is carried out encapsulation process generate to transmit frame, carry out encapsulation process generation OBU to transmitting frame, this OBU comprises OBU expense and OBU payload, the OBU payload is used for carrying and transmits frame, and the OBU expense comprises the demarcation on leading, the border that is used to identify OBU that is used for receiver locking received power and recovered clock and is used to identify the source node address of OBU and/or the node ID of destination node address;

Further, the OBU expense can also comprise BIP verification, state indication, payload sign, signalling path, Emergency Maintenance management information or power adjustment message in the present embodiment.Specifically can repeat no more referring to Fig. 6 and to the specific descriptions of Fig. 6 herein.

To the specific descriptions of this step can referring among the embodiment one to the description of step 101, specifically repeat no more.

Step 202, OBU is carried out the electric light conversion process form OBC, and generate the OBC expense of OBC correspondence, the OBC expense comprises the bandwidth map of information that is used to identify the node ID of OBU or sign OBC and is used to identify the OB of OBC correspondence;

To the specific descriptions of this step can referring among the embodiment one to the description of step 102, specifically repeat no more.

Step 203, the OBC expense is encapsulated in first control channel, first control channel is carried on and is exclusively used among the OBC that transmits first control channel;

Step 204, OBC is carried out multiplexing process generate OBMS, and generating the OBMS expense of OBMS correspondence, the OBMS expense comprises the wavelength ID of the wavelength that is used to identify carrying OBMS or wavestrip and is used to transmit the warning information that produces in the OBMS passage and the state indication of Performance Detection information;

OBMS can be made up of the OBC on one or more wavelength.Particularly, can be made up of the OBC on the wavelength as shown in Figure 2, this moment, each OBMS was corresponding to a wavelength; Perhaps be made up of the OBC on a plurality of wavelength as shown in Figure 3, this moment, each OBMS was corresponding to a plurality of wavelength.

Step 205, the OBMS expense is encapsulated in first control channel;

The concrete structure of first control channel can repeat no more referring to Fig. 9 and to the specific descriptions of Fig. 9 herein.

Further, present embodiment can also comprise the step that sends the OBMS and first control channel.

Each step can be carried out by the node in the network in the present embodiment, and this node can be used as source node.Present embodiment can be applicable in the symmetry network.When in the loop network that is applied to monocycle, further, present embodiment can also comprise the step that receives first control channel, this first control channel is to be generated and sent by other node that has received the OBMS and first control channel, when other node can send first control channel to this node simultaneously when this node sends data.When in the loop network that is applied to dicyclo, present embodiment can also comprise the step that receives second control channel, this second control channel is to be generated and sent by other node that has received the OBMS and first control channel, and this second control channel is carried on another and is exclusively used among the OBC that transmits second control channel.When other node can send second control channel to this node simultaneously when this node sends data.

Sequential relationship in the present embodiment between each step only is a kind of example.For example step 203 can be positioned at after the step 204.Need to prove: step 203 is positioned at only represents that it starts from before a certain step before a certain step, and it carries out concluding time can be also can be after a certain step before a certain step.

In the time of in being applied to the asymmetry network, present embodiment can not comprise and generates the OBC expense and the OBC expense encapsulated the step in first control channel into and generate the OBMS expense and the OBMS expense is encapsulated step in first control channel into.The node of carrying out each step this moment be in the asymmetry network from node.Further, present embodiment can also comprise the step that receives second control channel, and this second control channel is generated and sent to from node by host node in the asymmetry network.Host node generates OBC expense and OBMS expense after receiving the OBMS that sends from node, OBC expense and OBMS expense is encapsulated into second control channel and second control channel is sent to from node.

The data processing method of the foregoing description one and embodiment two has clearly been described out the process that forms the data frame structure of each layer among the OBTN, and it can be used as the process that client signal is set out on a journey at source node in the data transmission procedure of OBTN network.

The flow chart of a kind of data processing method that Figure 23 provides for the embodiment of the invention three, as shown in figure 23, this method comprises:

Step 301, OBC is carried out the electric light conversion process form OBU, this OBU comprises OBU expense and OBU payload, the OBU payload is used for carrying and transmits frame, and the OBU expense comprises the demarcation on leading, the border that is used to identify OBU that is used for receiver locking received power and recovered clock and is used to identify the source node address of OBU and/or the node ID of destination node address;

In the present embodiment, transmit frame and can be TPU, gfp frame, GEM frame or T-CONT.Wherein, TPU comprises TPU payload and TPU expense, and the TPU payload is used for the carrying client signal, and the TPU expense comprises the head of the demarcation that is used to realize TPU at least and is used to identify the TPU-ID of TPU.

Step 302, OBU is carried out decapsulation handle to generate transmit frame, carry out decapsulation and handle and generate client signal transmitting frame;

When the transmission frame was TPU, step 302 comprised: OBU is carried out decapsulation handle generation TPU; TPU is carried out decapsulation handle the generation client signal.Particularly, OBU can be carried out the decapsulation processing and generate TPU, TPU be carried out decapsulation handle generation gfp frame or GEM frame, again gfp frame or GEM frame be carried out decapsulation processing generation client signal.

When the transmission frame was gfp frame, step 302 comprised: OBU is carried out decapsulation handle the generation gfp frame, gfp frame is carried out decapsulation handle the generation client signal.

When the transmission frame was the GEM frame, step 302 comprised: OBU is carried out decapsulation handle generation GEM frame, the GEM frame is carried out decapsulation handle the generation client signal.

When the transmission frame was T-CONT, step 302 comprised: OBU is carried out decapsulation handle generation T-CONT; T-CONT is carried out decapsulation handle the generation client signal.Particularly, OBU can be carried out the decapsulation processing and generate T-CONT, T-CONT be carried out decapsulation handle generation gfp frame or GEM frame, again gfp frame or GEM frame be carried out decapsulation processing generation client signal.

Step 303, extract the OBC expense from first control channel, this first control channel is carried on and is exclusively used among the OBC that transmits first control channel;

The purpose of extracting the OBC expense from first control channel is to carry out transmitting, monitoring according to the OBC expense to handle.

Further, present embodiment can also comprise the step that receives the OBC and first control channel before step 301.

Each step can be carried out by the node in the network in the present embodiment, and this node can be used as destination node.Present embodiment can be applicable in the symmetry network.When in the loop network that is applied to monocycle, further, present embodiment can also comprise the step that sends first control channel, particularly, and when this node can send first control channel to other node simultaneously when other node sends data.When in the loop network that is applied to dicyclo, further, present embodiment can also comprise the step that generates and sends second control channel, particularly, node generates second control channel and sends this second control channel to other node that sends the OBC and first control channel, and this second control channel is carried on another and is exclusively used among the OBC that transmits second control channel.When this node can send second control channel to other node simultaneously when other node sends data.

The sequential relationship of each step only is a kind of example in the present embodiment.For example, step 303 can also be positioned at before step 301 or the step 302.

In the time of in being applied to the asymmetry network, the node of then carrying out each step is the host node in the asymmetry network.Further, present embodiment can also comprise the step that sends second control channel, and this second control channel is generated and sent to from node by host node in the asymmetry network.Host node generates the OBC expense after receiving the OBC that sends from node, the OBC expense is encapsulated into second control channel and second control channel is sent to from node.

The flow chart of a kind of data processing method that Figure 24 provides for the embodiment of the invention four, as shown in figure 24, this method comprises:

Step 401, OBMS is carried out demultiplexing handle to form OBC;

Step 402, extract the OBMS expense from first control channel, this first control channel is carried on and is exclusively used among the OBC that transmits first control channel;

Step 403, OBC is carried out the electric light conversion process form OBU, this OBU comprises OBU expense and OBU payload, the OBU payload is used for carrying and transmits frame, and the OBU expense comprises the demarcation on leading, the border that is used to identify OBU that is used for receiver locking received power and recovered clock and is used to identify the source node address of OBU and/or the node ID of destination node address;

Step 404, OBU is carried out decapsulation handle to generate transmit frame, carry out decapsulation and handle and generate client signal transmitting frame;

To the specific descriptions of this step can referring among the embodiment three to the description of step 302, specifically repeat no more.

Step 405, from first control channel, extract the OBC expense.

Further, present embodiment can also comprise the step that receives the OBMS and first control channel before step 401.

Each step can be carried out by the node in the network in the present embodiment, and this node can be used as destination node.Present embodiment can be applicable in the symmetry network.When in the loop network that is applied to monocycle, further, present embodiment can also comprise the step that sends first control channel, particularly, and when this node can send first control channel to other node simultaneously when other node sends data.When in the loop network that is applied to dicyclo, further, present embodiment can also comprise the step that generates and sends second control channel, particularly, node generates second control channel and sends this second control channel to other node that sends the OBMS and first control channel, and this second control channel is carried on another and is exclusively used among the OBC that transmits second control channel.When this node can send second control channel to other node simultaneously when other node sends data.

The sequential relationship of each step only is a kind of example in the present embodiment.For example, step 402 can also be positioned at before the step 401 or after the step 403, step 405 can also be positioned at before step 403 or the step 404.

In the time of in being applied to the asymmetry network, the node of then carrying out each step is the host node in the asymmetry network.Further, present embodiment can also comprise the step that sends second control channel, and this second control channel is generated and sent to from node by host node in the asymmetry network.Host node generates OBC expense and OBMS expense after receiving the OBMS that sends from node, OBC expense and OBMS expense is encapsulated into second control channel and second control channel is sent to from node.

In the foregoing description one to embodiment four, in the time of in being applied to the symmetry network, particularly, the structure of TPU can adopt the structure among Figure 11, the structure of OBU can adopt the structure among Figure 12, the structure of OBC expense can adopt the structure among Figure 13, and the concrete structure of OBMS expense can adopt the structure among Figure 14; In the time of in being applied to the asymmetry network, particularly, the structure of TPU can adopt the structure among Figure 17, and the structure of OBU can adopt the structure among Figure 18, and the structure of OBC expense can adopt the structure among Figure 19, and the structure of OBMS can adopt the structure among Figure 14 equally.

In the foregoing description one to embodiment four, in the time of in being applied to the symmetry network, then the structure of first control channel and second control channel can adopt the structure among Figure 15; In the time of in being applied to the asymmetry network, the structure of second control channel can adopt the structure among Figure 20.

Among the embodiment one to embodiment four of above-mentioned data processing method, based on the data frame structure of photosphere among the OBTN of definition and electricity layer, this method all can also comprise the step of the transmission bandwidth between Control Node.Can realize by the following method particularly.

Method one, by signalling path in the OBMS expense or the signalling path control transmission bandwidth among the OBU.With node A in the network and Node B is example, describes the method by signalling path control transmission bandwidth in detail.Node A or Node B can be for carrying out the node of each step in the various embodiments described above, Node B is other node in the network when node A is the node of each step of execution in the foregoing description, and node A is other node in the network when Node B is the node of each step of execution in the foregoing description.

Node A comes allocation of transmission bandwidth to generate bandwidth information by management plane agreement in the signalling path or the control plane agreement in the signalling path, the bandwidth information that generates is encapsulated in the signalling path of first control channel into, when node A sent to Node B with first control channel, Node B can receive the bandwidth information in the signalling path of first control channel and adjust bandwidth according to this bandwidth information.Wherein the control plane agreement can comprise the GMPLS/ASON agreement.When signalling path is arranged in the OBU expense of OBU, be applicable in the data processing method of carrying out by source node and destination node, promptly in the data processing method of intermediate node; When signalling path is arranged in the OBMS expense, is applicable in the data processing method of carrying out by source node and destination node or is applicable in the data processing method of carrying out by source node, intermediate node and destination node.

Method two, by bandwidth report and bandwidth map, adopt bandwidth allocation algorithm to come allocation of transmission bandwidth.With two node A, B in the network is example, detailed description is by the method for bandwidth report and bandwidth map allocation of transmission bandwidth, node A or Node B can be for carrying out the node of each step in the various embodiments described above, Node B is other node in the network when node A is the node of each step of execution in the foregoing description, and node A is other node in the network when Node B is the node of each step of execution in the foregoing description.

When in the loop network that is applied to monocycle, node A comprises bandwidth request information in first control channel that Node B sends, and bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; Node B according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; Node B encapsulates the bandwidth information that generates in the bandwidth map of first control channel into; When Node B sent to node A with first control channel, node A can receive the bandwidth information in the bandwidth map of first control channel and adjust bandwidth according to this bandwidth information.

When in the loop network that is applied to dicyclo, Node B comprises bandwidth request information in second control channel that node A sends, and bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; Node A according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; Node A encapsulates the bandwidth information that generates in the bandwidth map of first control channel into; When node A sent to Node B with first control channel, Node B can receive the bandwidth information in the bandwidth map of first control channel and adjust bandwidth according to this bandwidth information.

When in the loop network that is applied to dicyclo, node A comprises bandwidth request information in first control channel that Node B sends, and bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; Node B according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; Node B encapsulates the bandwidth information that generates in the bandwidth map of second control channel into; When Node B sent to node A with second control channel, node A can receive the bandwidth information in the bandwidth map of second control channel and adjust bandwidth according to this bandwidth information.

In the time of in being applied to the asymmetry network, node A can be used as from node, and Node B can be used as host node, and then node A comprises bandwidth request information in OBC that Node B sends or OBMS, and bandwidth request information can be arranged in the bandwidth report of TPU expense particularly; Node B according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; Node B encapsulates the bandwidth information that generates in the bandwidth map of second control channel into; When Node B sent to node A with second control channel, node A can receive the bandwidth information in the bandwidth map of second control channel and adjust bandwidth according to this bandwidth information.

Bandwidth map is arranged in the OBC expense in said method two.

Method three, the bandwidth map of passing through, the employing bandwidth allocation algorithm comes allocation of transmission bandwidth.With two node A, B in the network is example, describes the method by the bandwidth map allocation of transmission bandwidth in detail.Node A detects data transfer throughput, generate bandwidth information by data transfer throughput and bandwidth allocation algorithm allocation of transmission bandwidth, the bandwidth information that generates is encapsulated in the bandwidth map of first control channel into, when node A sent to Node B with first control channel, Node B can receive the bandwidth information in the bandwidth map of first control channel and adjust bandwidth according to this bandwidth information.Perhaps node A encapsulates the bandwidth information that generates in the bandwidth map of second control channel into, when node A sent to Node B with second control channel, Node B can receive the bandwidth information in the bandwidth map of second control channel and adjust bandwidth according to this bandwidth information.Wherein, bandwidth map is arranged in the OBC expense.

Among the embodiment one to embodiment four of above-mentioned data processing method, based on the data frame structure of photosphere among the OBTN of definition and electricity layer, this method all can also comprise the step that sends Emergency Maintenance management information.

Be specifically as follows: send request mark by Emergency Maintenance management information, application sends Emergency Maintenance management information, applies for that successfully the back sends Emergency Maintenance management information.Particularly, can send sign according to Emergency Maintenance management information, transmission Emergency Maintenance management information after applying for successfully.Wherein, Emergency Maintenance management information sends request mark and is arranged in the state indication of OBC expense or the state indication of OBU expense, Emergency Maintenance management information is arranged in OBU expense or OBC expense, and Emergency Maintenance management information sends the identification field that sign is arranged in the OBC expense.

This method can be carried out by the node of carrying out each step among each embodiment of above-mentioned data processing method.

The technical scheme of data processing method embodiment of the present invention has clearly defined the data frame structure of photosphere and electricity layer according to the characteristics of OBTN, the method of carrying out data processing based on the data frame structure of the photosphere of definition and electricity layer is applicable to OBTN, thus the problem that has solved the data frame structure that defines in the network that has electricity layer photoreactive layer characteristics in the prior art and can't be applied to carry out among the OBTN transfer of data based on the data processing method of the data frame structure of definition.Compare with OTN, in the foregoing description OBC expense in the photosphere and OBMS expense are arranged in the control channel, intermediate node can carry out electric treatment to realize required function in the data transmission procedure to control channel, for example in the data transmission procedure to the monitoring function of data, thereby finish data transmission procedure.Compare with PON, the foregoing description can adopt unified data processing method to carry out transfer of data by the photosphere of definition and the data frame structure of electricity layer, thereby makes the data processing method in the present embodiment go for various application scenarios; The technical scheme of present embodiment has clearly defined data frame structure and the function distinguishing between the two and the contact of photosphere and electricity layer, has particularly clearly defined TPU (corresponding to the T-CONT among the PON) and OBU (corresponding to the Burst among the PON) and function distinguishing between the two and contact.

The structural representation of a kind of data processing equipment that Figure 25 provides for the embodiment of the invention five, as shown in figure 25, this equipment comprises the first client signal processing module 11, an OBU processing module 12, an OBC processing module 13 and the first control channel processing module 14.11 pairs of client signals of the first client signal processing module carry out encapsulation process and generate the transmission frame; 12 pairs of the one OBU processing modules transmit frame and carry out encapsulation process generation OBU, this OBU comprises OBU expense and OBU payload, the OBU payload is used for carrying and transmits frame, and the OBU expense comprises the demarcation on leading, the border that is used to identify OBU that is used for receiver locking received power and recovered clock at least and is used to identify the source node address of OBU and/or the node ID of destination node address; 13 couples of OBU of the one OBC processing module carry out the electric light conversion process and form OBC, and generate the OBC expense of OBC correspondence, and the OBC expense comprises the bandwidth map of information that is used to identify the node ID of OBU or sign OBC and is used to identify the OB of OBC correspondence at least; The first control channel processing module 14 encapsulates the OBC expense in first control channel, and first control channel is carried on and is exclusively used among the OBC that transmits first control channel.

Further, present embodiment can also comprise first transceiver module 16.First transceiver module 16 is used to send the OBC and first control channel.

Further, when transmitting frame is TPU, described TPU comprises TPU payload and TPU expense, the TPU payload is used to carry described client signal, the TPU expense comprises the head of the demarcation that is used to realize TPU at least and when being used to identify the TPU-ID of TPU, the first client signal processing module 11 comprises a TPU processing module 111.The one TPU processing module 111 is carried out encapsulation process with client signal and is generated TPU, and then an OBU processing module 12 is carried out encapsulation process generation OBU with TPU.

Further, when the transmission frame was gfp frame, the first client signal processing module 11 comprised a GFP processing module 112.The one GFP processing module 112 is carried out encapsulation process with client signal and is generated gfp frame, and then an OBU processing module 12 is carried out encapsulation process generation OBU with gfp frame.

Further, be the GEM frame when transmitting frame, the first client signal processing module 11 comprises a GEM processing module 113.The one GEM processing module 113 is carried out encapsulation process with client signal and is generated the GEM frame, and then an OBU processing module 12 is carried out encapsulation process generation OBU with the GEM frame.

Further, be T-CONT when transmitting frame, the first client signal processing module 11 comprises a T-CONT processing module 114.The one T-CONT processing module 114 is carried out encapsulation process with client signal and is generated T-CONT, and then an OBU processing module 12 is carried out encapsulation process generation OBU with T-CONT.

Further, the equipment in the present embodiment also comprises an OBMS processing module 15.15 couples of OBC of the one OBMS processing module carry out multiplexing process and generate OBMS, and generating the OBMS expense of OBMS correspondence, the OBMS expense comprises the wavelength ID of the wavelength that is used to identify carrying OBMS or wavestrip at least and is used to transmit the warning information that produces in the OBMS passage and the state indication of Performance Detection information; The first control channel processing module 14 encapsulates the OBMS expense in first control channel.First transceiver module 16 sends the OBMS and first control channel.

Further, the equipment in the present embodiment also comprises first Bandwidth Broker 17.

When in the loop network that is applied to monocycle, first transceiver module 16 sends in first control channel of other node and comprises bandwidth request information, and bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; Other node generates bandwidth information according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth, bandwidth information is encapsulated in the bandwidth map of first control channel into, and first control channel is sent to first transceiver module 16; First transceiver module 16 sends to the first control channel processing module 14 with first control channel, 14 pairs first control channels of the first control channel processing module are carried out the decapsulation processing and are drawn bandwidth information, and the bandwidth information that draws sent to first Bandwidth Broker 17, adjust bandwidth by first Bandwidth Broker 17 according to bandwidth information, thereby finish the process of allocation of transmission bandwidth.In such cases, 17 conducts of first Bandwidth Broker are from Bandwidth Broker.

Perhaps, when in the loop network that is applied to monocycle, comprise bandwidth request information in first control channel that other nodes that first transceiver module 16 receives send, bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; First transceiver module 16 sends to 14 pairs first control channels of the first control channel processing module, 14, the first control channel processing modules with first control channel to carry out decapsulation and handles and to draw bandwidth request information and the bandwidth request information that draws is sent to first Bandwidth Broker 17; First Bandwidth Broker 17 according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; The first control channel processing module 14 encapsulates bandwidth information in the bandwidth map of first control channel into; Sending first control channel by first transceiver module 16 sends the bandwidth information in the bandwidth map.In such cases, first Bandwidth Broker 17 can be used as the wide manager of master tape.

Perhaps, when in the loop network that is applied to dicyclo, first transceiver module 16 receives second control channel, and this second control channel comprises bandwidth request information, and bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; First transceiver module 16 sends to 14 pairs second control channels of the first control channel processing module, 14, the first control channel processing modules with second control channel to carry out decapsulation and handles and to draw bandwidth request information and the bandwidth request information that draws is sent to first Bandwidth Broker 17; First Bandwidth Broker 17 according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; The first control channel processing module 14 encapsulates bandwidth information in the bandwidth map of first control channel into; Sending first control channel by first transceiver module 16 sends the bandwidth information in the bandwidth map.Wherein second control channel is that other node sends, and first control channel that first transceiver module 16 can will be packaged with bandwidth information sends to other node, thereby finishes the process of allocation of transmission bandwidth.In such cases, first Bandwidth Broker 17 can be used as the wide manager of master tape.

Perhaps, when in the loop network that is applied to dicyclo, first transceiver module 16 sends in first control channel of other node and comprises bandwidth request information, and bandwidth request information can be arranged in the bandwidth report of OBC expense particularly; Other node generates bandwidth information, bandwidth information is encapsulated in the bandwidth map of second control channel into, and second control channel is sent to first transceiver module 16; First transceiver module 16 sends to the first control channel processing module 14 with second control channel, 14 pairs second control channels of the first control channel processing module are carried out the decapsulation processing and are drawn bandwidth information, and the bandwidth information that draws sent to first Bandwidth Broker 17, adjust bandwidth by first Bandwidth Broker 17 according to bandwidth information, thereby finish the process of allocation of transmission bandwidth.In such cases, first Bandwidth Broker 17 can be used as from Bandwidth Broker.

Perhaps, in the time of in being applied to the asymmetry network, first transceiver module 16 sends among the OBC of other node or the OBMS and comprises bandwidth request information, and bandwidth request information is positioned at the bandwidth report of TPU expense particularly; Other node generates bandwidth information according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth, bandwidth information is encapsulated in the bandwidth map of second control channel into, and second control channel is sent to first transceiver module 16; First transceiver module 16 sends to the first control channel processing module 14 with second control channel, 14 pairs second control channels of the first control channel processing module are carried out the decapsulation processing and are drawn bandwidth information, and the bandwidth information that draws sent to first Bandwidth Broker 17, adjust bandwidth by first Bandwidth Broker 17 according to bandwidth information, thereby finish the process of allocation of transmission bandwidth.In such cases, first Bandwidth Broker 17 can be used as from Bandwidth Broker.

Perhaps, first Bandwidth Broker 17 detects data transfer throughput, generates bandwidth information by data transfer throughput and bandwidth allocation algorithm allocation of transmission bandwidth; The first control channel processing module 14 encapsulates bandwidth information in the bandwidth map of first control channel into; By first transceiver module 16 bandwidth information in the bandwidth map of first control channel is sent to other node, thereby finish the process of allocation of transmission bandwidth.Perhaps the first control channel processing module 14 encapsulates bandwidth information in the bandwidth map of second control channel into; By first transceiver module 16 bandwidth information in the bandwidth map of second control channel is sent to other node, thereby finish the process of allocation of transmission bandwidth.In such cases, first Bandwidth Broker 17 can be used as the wide manager of master tape.

Perhaps, first Bandwidth Broker 17 can also pass through the signalling path allocation of transmission bandwidth.

When signalling path is arranged in the OBU expense, first Bandwidth Broker 17 generates bandwidth information by management plane agreement in the signalling path or control control plane agreement allocation of transmission bandwidth, and bandwidth information sent to an OBU processing module 12, by an OBU processing module 12 bandwidth information that generates is encapsulated in the signalling path;

When signalling path is arranged in the OBMS expense, first Bandwidth Broker 17 generates bandwidth information by management plane agreement in the signalling path or control control plane agreement allocation of transmission bandwidth, and bandwidth information sent the first control channel processing module 14, by the first control channel processing module 14 bandwidth information that generates is encapsulated in the signalling path of first control channel into.

Data processing equipment among the embodiment five can be used as source node, is used to finish the process that client signal is set out on a journey.

The structural representation of a kind of data processing equipment that Figure 26 provides for the embodiment of the invention six, as shown in figure 26, this equipment comprises the 2nd OBC processing module 23, the 2nd OBU processing module 22, the second client signal processing module 21 and the second control control channel processing module 24.23 couples of OBC of the 2nd OBC processing module carry out the electric light conversion process and form OBU, OBU comprises OBU expense and OBU payload, the OBU payload is used for carrying and transmits frame, and the OBU expense comprises the demarcation on leading, the border that is used to identify OBU that is used for receiver locking received power and recovered clock at least and is used to identify the source node address of OBU and/or the node ID of destination node address; 22 couples of OBU of the 2nd OBU processing module carry out decapsulation and handle generation transmission frame; 21 pairs of the second client signal processing modules transmit frame and carry out decapsulation processing generation client signal; The second control channel processing module 24 is extracted the OBC expense from first control channel, first control channel is carried on and is exclusively used among the OBC that transmits first control channel.

Further, present embodiment can also comprise second transceiver module 26.Second transceiver module 26 receives the OBC and first control channel.

Further, when transmitting frame is TPU, described TPU comprises TPU payload and TPU expense, the TPU payload is used to carry described client signal, the TPU expense comprises the head of the demarcation that is used to realize TPU at least and when being used to identify the TPU-ID of TPU, the second client signal processing module 21 comprises the 2nd TPU processing module 211.The 2nd OBU processing module 22 is carried out decapsulation with OBU and is handled generation TPU, and the 2nd TPU processing module 211 is carried out decapsulation with TPU and handled the generation client signal.

Further, when the transmission frame was gfp frame, the second client signal processing module 21 comprised the 2nd GFP processing module 212.The 2nd OBU processing module 22 is carried out decapsulation with OBU and is handled the generation gfp frame, and the 2nd GFP processing module 212 is carried out decapsulation with gfp frame and handled the generation client signal.

Further, when the transmission frame was the GEM frame, the second client signal processing module 21 comprised the 2nd GEM processing module 213.The 2nd OBU processing module 22 is carried out decapsulation with OBU and is handled generation GEM frame, and the 2nd GEM processing module 213 is carried out decapsulation with the GEM frame and handled the generation client signal.

Further, when the transmission frame was T-CONT, the second client signal processing module 21 comprised the 2nd T-CONT processing module 214.The 2nd OBU processing module 22 is carried out decapsulation with OBU and is handled generation T-CONT, and the 2nd T-CONT processing module 214 is carried out decapsulation with T-CONT and handled the generation client signal.

Further, the equipment in the present embodiment also comprises the 2nd OBMS processing module 25.25 couples of OBMS of the 2nd OBMS processing module carry out demultiplexing and handle formation OBC, and the OBC that forms is sent to the 2nd OBC processing module 23; The second control channel processing module 24 can also be extracted the OBMS expense from first control channel, described OBMS expense comprises wavelength or the wavelength ID of wavestrip and the state indication that is used to transmit interior warning information that produces of OBMS passage and Performance Detection information that is used to identify carrying OBMS at least.Then second transceiver module 26 receives the OBMS and first control channel.

Further, the equipment in the present embodiment also comprises second Bandwidth Broker 27.

Second Bandwidth Broker 27 can referring in the foregoing description to the description of first Bandwidth Broker 17, difference is: first transceiver module 16 that adopts in the above-mentioned description to first Bandwidth Broker 17 and the first control channel processing module 14 are respectively second transceiver module 26 and the second control channel processing module 24 in the present embodiment.And in the time of in being applied to the asymmetry network, comprise bandwidth request information among OBC that second transceiver module, 26 other nodes of reception send or the OBMS, bandwidth request information is arranged in the bandwidth report of TPU expense particularly; Second transceiver module 26 sends to the OBC that receives the 2nd OBC processing module 23 or the OBMS that receives is sent to the 2nd OBMS processing module 25, processing by the 2nd OBC processing module 23, the 2nd OBU processing module 22 and the 2nd TPU processing module 211 draws the TPU expense, from the TPU expense, extract the bandwidth report by the 2nd TPU processing module 211, and the bandwidth request information in the bandwidth report is sent to second Bandwidth Broker 27; Second Bandwidth Broker 27 according to solicited message by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; The second control channel processing module 24 encapsulates bandwidth information in the bandwidth map of second control channel into; Send second control channel by second transceiver module 26 bandwidth map is sent to other node.In such cases, second Bandwidth Broker 27 can be used as the wide manager of master tape.

Data processing equipment among the foregoing description five and the embodiment six can be used as destination node, is used to finish the process on road under the client signal.

The Bandwidth Broker that can specify a node in OBTN is the wide manager of master tape, and the Bandwidth Broker of other node is from Bandwidth Broker.For example, can specify first Bandwidth Broker 17 among the above-mentioned data processing equipment embodiment to be the wide manager of master tape, second Bandwidth Broker 27 among the then above-mentioned data processing equipment embodiment is from Bandwidth Broker.Data processing equipment with first Bandwidth Broker 17 and second Bandwidth Broker, 27 places is the process of example explanation allocation of transmission bandwidth.First transceiver module 16 receives second control channel that second transceiver module 26 sends, and this second control channel comprises bandwidth request information; First transceiver module 16 sends to 14 pairs first control channels of the first control channel processing module, 14, the first control channel processing modules with first control channel to carry out decapsulation and handles and to draw bandwidth request information and the bandwidth request information that draws is sent to first Bandwidth Broker 17; First Bandwidth Broker 17 according to bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; The first control channel processing module 14 encapsulates bandwidth information in the bandwidth map of first control channel into; First transceiver module 16 sends to second transceiver module 26 with first control channel; Second transceiver module 26 sends to 24 pairs first control channels of the second control channel processing module, 24, the second control channel processing modules with first control channel to carry out decapsulation and handles and to draw bandwidth information and the bandwidth information that draws is sent to second Bandwidth Broker 27; Second Bandwidth Broker 27 is adjusted bandwidth according to bandwidth information, thereby finishes the process of allocation of transmission bandwidth.

Among the above-mentioned data processing equipment embodiment, the structure of TPU, OBU, OBC, OBMS and control channel can be referring to the description among the data processing method embodiment.

In actual application, the node among the OBTN can adopt the data processing equipment in the various embodiments described above, also can adopt the combination of the data processing equipment in the various embodiments described above.In other words, node can only adopt the data processing equipment that possesses source node or destination node function, also can adopt the data processing equipment that possesses source node and destination node function.

The technical scheme of embodiment of the invention data processing equipment has clearly defined the data frame structure of photosphere and electricity layer according to the characteristics of OBTN, the equipment that carries out data processing based on the data frame structure of the photosphere of definition and electricity layer is applicable to OBTN, thus the problem that has solved the data frame structure that defines in the network that has electricity layer photoreactive layer characteristics in the prior art and can't be applied to carry out among the OBTN transfer of data based on the data processing method of the data frame structure of definition.Compare with OTN, in the data processing equipment of the foregoing description OBC expense in the photosphere and OBMS expense are arranged in the control channel, intermediate node can carry out electric treatment to realize required function in the data transmission procedure to control channel, for example in the data transmission procedure to the monitoring function of data, thereby finish data transmission procedure.Compare with PON, the data processing equipment of the foregoing description can adopt unified data processing method to carry out transfer of data by the photosphere of definition and the data frame structure of electricity layer, thereby makes the data processing equipment in the foregoing description go for various application scenarios; The technical scheme of the foregoing description has clearly defined data frame structure and the function distinguishing between the two and the contact of photosphere and electricity layer, has particularly clearly defined TPU (corresponding to the T-CONNT among the PON) and OBU (corresponding to the Burst among the PON) and function distinguishing between the two and contact.

It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.

Claims

1. a data processing method is characterized in that, comprising:

Described OBU is carried out the electric light conversion process form light burst passage OBC, and generating the OBC expense of described OBC correspondence, described OBC expense comprises the bandwidth map of information that is used to the node ID that identifies described OBU or identify described OBC and is used to identify the light burst OB of described OBC correspondence at least;

2. method according to claim 1 is characterized in that, also comprises:

Described OBC is carried out multiplexing process generate light burst multiplex section OBMS;

Generate the OBMS expense of described OBMS correspondence, described OBMS expense comprises wavelength or the wavelength ID of wavestrip and the state indication that is used to transmit interior warning information that produces of OBMS passage and Performance Detection information that is used to identify the described OBMS of carrying at least;

Described OBMS expense is encapsulated in into described first control channel.

3. method according to claim 1 and 2, it is characterized in that, described transmission frame comprises transmission Payload Unit TPU, described TPU comprises TPU payload and TPU expense, described TPU payload is used to carry described client signal, and described TPU expense comprises the head of the demarcation that is used to realize described TPU at least and is used to identify the TPU-ID of described TPU; Describedly client signal is carried out encapsulation process generate to transmit frame, described transmission frame is carried out encapsulation process generate light burst unit OBU and comprise: described client signal is carried out encapsulation process generate TPU, described TPU is carried out encapsulation process generate described OBU.

4. method according to claim 1 and 2, it is characterized in that, described transmission frame comprises the Generic Framing Procedure gfp frame, describedly client signal is carried out encapsulation process generate to transmit frame, described transmission frame is carried out encapsulation process generation light burst unit OBU to be comprised: described client signal is carried out encapsulation process generate gfp frame, described gfp frame is carried out encapsulation process generate described OBU; Perhaps

Described transmission frame comprises Gigabit Passive Optical Network encapsulation mode GEM frame, describedly client signal is carried out encapsulation process generate to transmit frame, described transmission frame is carried out encapsulation process generation light burst unit OBU to be comprised: described client signal is carried out encapsulation process generate the GEM frame, described GEM frame is carried out encapsulation process generate described OBU.

5. method according to claim 1 and 2 is characterized in that, also comprises:

Receive second control channel, described second control channel comprises bandwidth request information, and described second control channel is carried on another and is exclusively used among the described OBC that transmits described second control channel; According to described bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information; The bandwidth information that generates is encapsulated in the bandwidth map of into described first control channel.

6. method according to claim 1 and 2 is characterized in that, also comprises:

Detect data transfer throughput, generate bandwidth information, the bandwidth information that generates is encapsulated in the bandwidth map of into described first control channel by described data transfer throughput and bandwidth allocation algorithm allocation of transmission bandwidth.

7. method according to claim 2 is characterized in that, also comprises:

Generate bandwidth information by management plane agreement in the signalling path or the control plane agreement allocation of transmission bandwidth in the signalling path;

When described signalling path is arranged in described OBU expense, the bandwidth information that generates is encapsulated in the signalling path of OBU expense into;

When described signalling path is arranged in described OBMS expense, the bandwidth information that generates is encapsulated in the signalling path of first control channel into.

8. method according to claim 1 and 2 is characterized in that, also comprises:

Send request mark by Emergency Maintenance management information, application sends Emergency Maintenance management information, apply for successfully after, transmission Emergency Maintenance management information; Described Emergency Maintenance management information sends request mark and is arranged in described OBC expense or described OBU expense, and described Emergency Maintenance management information is arranged in described OBC expense or described OBU expense.

9. a data processing method is characterized in that, comprising:

10. method according to claim 9 is characterized in that, also comprises:

OBMS is carried out demultiplexing handle the described OBC of formation;

Extract the OBMS expense from first control channel, described OBMS expense comprises wavelength or the wavelength ID of wavestrip and the state indication that is used to transmit interior warning information that produces of OBMS passage and Performance Detection information that is used to identify the described OBMS of carrying at least.

11. according to claim 9 or 10 described methods, it is characterized in that, described transmission frame comprises transmission Payload Unit TPU, described TPU comprises TPU payload and TPU expense, described TPU payload is used to carry described client signal, and described TPU expense comprises the head of the demarcation that is used to realize described TPU at least and is used to identify the TPU-ID of described TPU; Describedly described OBU is carried out decapsulation handle to generate described transmission frame; Described transmission frame is carried out decapsulation processing generation client signal to be comprised: described OBU is carried out decapsulation handle generation TPU; Described TPU is carried out decapsulation handle the described client signal of generation.

12., it is characterized in that described transmission frame comprises gfp frame according to claim 9 or 10 described methods, describedly described OBU is carried out decapsulation handle to generate described transmission frame; Described transmission frame is carried out decapsulation processing generation client signal to be comprised: described OBU is carried out decapsulation handle the described gfp frame of generation, described gfp frame is carried out decapsulation handle the described client signal of generation; Perhaps

Described transmission frame comprises the GEM frame, describedly described OBU is carried out decapsulation handle to generate described transmission frame; Described transmission frame is carried out decapsulation processing generation client signal to be comprised: described OBU is carried out decapsulation handle the described GEM frame of generation, described GEM frame is carried out decapsulation handle the described client signal of generation.

13. a data processing equipment is characterized in that, comprising:

14. equipment according to claim 13 is characterized in that, also comprises:

The one OBMS processing module, be used for that described OBC is carried out multiplexing process and generate light burst multiplex section OBMS, and generating the OBMS expense of described OBMS correspondence, described OBMS expense comprises the wavelength ID of the wavelength that is used to identify the described OBMS of carrying or wavestrip and is used to transmit the warning information that produces in the OBMS passage and the state indication of Performance Detection information;

The described first control channel processing module also is used for described OBMS expense is encapsulated into described first control channel.

15. according to claim 13 or 14 described equipment, it is characterized in that, described transmission frame comprises TPU, described TPU comprises TPU payload and TPU expense, described TPU payload is used to carry described client signal, and described TPU expense comprises the head of the demarcation that is used to realize described TPU at least and is used to identify the TPU-ID of described TPU; The described first client signal processing module comprises:

The one TPU processing module is used for that described client signal is carried out encapsulation process and generates TPU;

A described OBU processing module is used for that also described TPU is carried out encapsulation process and generates described OBU.

16., it is characterized in that described transmission frame comprises gfp frame according to claim 13 or 14 described equipment, the described first client signal processing module comprises: a GFP processing module is used for that described client signal is carried out encapsulation process and generates gfp frame; A described OBU processing module is used for that also described gfp frame is carried out encapsulation process and generates described OBU; Perhaps

Described transmission frame comprises the GEM frame, and the described first client signal processing module comprises: a GEM processing module is used for that described client signal is carried out encapsulation process and generates the GEM frame; A described OBU processing module is used for that also described GEM frame is carried out encapsulation process and generates described OBU.

17. according to right 13 or 14 described equipment, it is characterized in that, the described first control channel processing module also is used to receive second control channel, described second control channel comprises bandwidth request information, and described second control channel is carried on another and is exclusively used among the described OBC that transmits described second control channel; Described equipment also comprises:

First Bandwidth Broker is used for according to described bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information;

The bandwidth information that the described first control channel processing module also is used for generating encapsulates the bandwidth map of into described first control channel.

18. according to right 13 or 14 described equipment, it is characterized in that, also comprise:

First Bandwidth Broker is used to detect data transfer throughput, generates bandwidth information by described data transfer throughput and bandwidth allocation algorithm allocation of transmission bandwidth;

19. a data processing equipment is characterized in that, comprising:

20. equipment according to claim 19 is characterized in that, also comprises:

The 2nd OBMS processing module is used for that OBMS is carried out demultiplexing and handles the described OBC of formation;

The described second control channel processing module also is used for extracting the OBMS expense from first control channel, and described OBMS expense comprises wavelength or the wavelength ID of wavestrip and the state indication that is used to transmit interior warning information that produces of OBMS passage and Performance Detection information that is used to identify the described OBMS of carrying at least.

21. according to claim 19 or 20 described equipment, it is characterized in that, described transmission frame comprises TPU, described TPU comprises TPU payload and TPU expense, described TPU payload is used to carry described client signal, and described TPU expense comprises the head of the demarcation that is used to realize described TPU at least and is used to identify the TPU-ID of described TPU; The described second client signal processing module comprises the 2nd TPU processing module;

Described the 2nd OBU processing module is used for that also described OBU is carried out decapsulation and handles the described TPU of generation;

Described the 2nd TPU processing module is used for that described TPU is carried out decapsulation and handles the described client signal of generation.

22., it is characterized in that described transmission frame comprises gfp frame according to claim 19 or 20 described equipment; The described second client signal processing module comprises the 2nd GFP processing module; The 2nd OBU processing module is used for that also described OBU is carried out decapsulation and handles the described gfp frame of generation; Described the 2nd GFP processing module is used for that described gfp frame is carried out decapsulation and handles the described client signal of generation; Perhaps

Described transmission frame comprises the GEM frame, and the described second client signal processing module comprises the 2nd GEM processing module; The 2nd OBU processing module is used for that also described OBU is carried out decapsulation and handles the described GEM frame of generation; Described the 2nd GEM processing module is used for that described GEM frame is carried out decapsulation and handles the described client signal of generation.

23., it is characterized in that the described second control channel processing module also is used to receive first control channel according to claim 19 or 20 described equipment, described first control channel comprises bandwidth request information; Described equipment also comprises:

Second Bandwidth Broker is used for according to described bandwidth request information by the bandwidth allocation algorithm allocation of transmission bandwidth and generate bandwidth information;

The bandwidth information that the described second control channel processing module also is used for generating encapsulates the into bandwidth map of second control channel, and described second control channel is carried on another and is exclusively used among the described OBC that transmits described second control channel.

24. according to right 19 or 20 described equipment, it is characterized in that, also comprise:

Second Bandwidth Broker is used to detect data transfer throughput, generates bandwidth information by described data transfer throughput and bandwidth allocation algorithm allocation of transmission bandwidth;