CN102870361A

CN102870361A - Data processing method, apparatus and system

Info

Publication number: CN102870361A
Application number: CN2012800005199A
Authority: CN
Inventors: 赵泉波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2013-01-09
Anticipated expiration: 2032-06-15
Also published as: WO2013185355A1; CN102870361B

Abstract

A data processing method, an apparatus and a system are disclosed by the embodiment of the present invention. The method comprsises though a first medium domain coding and a second medium domain encoding at a first terminal, performing a first medium domain decoding in a media conversion device, and the second domain decoding in a second terminal; or performing the first medium domain encoding at the first terminal, the second domain decoding in the media conversion device. Performing the first medium domain decoding and the second media domain coding at the second terminal, error correction capability of the first medium domain and the second medium domain is integrated, improving the accuracy of the data receives by the receiving end from the the sending end, s while simplifying the protocol structure of the media conversion device. The solutions provided by the embodiment of the invention are suitable for data processing in the orthogonal frequency division multiple access 0FDMA system.

Description

Data processing method, Apparatus and system

Technical field

The present invention relates to communication network technology, relate in particular to data processing method, Apparatus and system.

Background technology

At EPOC (Ethernet Passive Optical Network Over Coax, carry Ethernet passive optical network at coaxial cable) in the system, CLT (Coax Line Terminal, coaxial line terminal) is divided into two parts, comprise processing section, copper territory and processing section, light territory, wherein, coaxial cable connects CNU (Coax Network Unit, coaxial network unit) with the processing section, copper territory of CLT, CNU belongs to the copper territory; Optical fiber connects the processing section, light territory of OLT (optical line terminal, optical line terminal) and CLT, and OLT belongs to the light territory.Physical layer in copper territory and light territory has all adopted respectively independently FEC (Forward Error Correction, forward error correction mode) encoding and decoding.

At up direction, CNU will send to the data of OLT to carry out sending to CLT behind the FEC coding, CLT carries out fec decoder after receiving data behind the coding, then carry out the secondary FEC coding in light territory in processing section, light territory, send to OLT, carry out fec decoder after OLT receives, obtain the initial data that CNU sends to OLT.

At down direction, OLT will send to the data of CNU to carry out sending to CLT behind the FEC coding, CLT receives through carrying out fec decoder after the coded data, then carry out the secondary FEC coding in copper territory in processing section, copper territory, send to CNU, carry out fec decoder after CNU receives, obtain the initial data that OLT sends to CNU.

Yet when adopting prior art, when the error code of introducing when the copper territory had surpassed the FEC error correcting capability in copper territory, secondary coding can be carried out to the data of copper territory mistake in the light territory; Equally, when the error code of introducing when the light territory had surpassed the FEC error correcting capability in light territory, secondary coding can be carried out to the data of light territory mistake in the copper territory, like this, will cause receiving terminal can't obtain the correct data that transmitting terminal sends.

Summary of the invention

The data processing method that embodiments of the invention provide, Apparatus and system can improve receiving terminal and obtain the correctness that transmitting terminal sends data.

A kind of data handling system is characterized in that, comprising: first terminal, change of medium equipment and the second terminal; Described first terminal is used for the coding that the first data are carried out second medium territory Physical Coding Sublayer, obtains the second data, and described the second data are carried out the coding of first medium territory Physical Coding Sublayer, obtains the 3rd data; Perhaps, the first data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the 4th data; Described the 3rd data or described the 4th data are sent to described change of medium equipment; Described change of medium equipment is used for receiving described the 3rd data, and described the 3rd data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains described the second data; Perhaps, receive described the 4th data, described the 4th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 5th data; Described the second data or described the 5th data are sent to described the second terminal; Described the second terminal is used for receiving described the second data, and described the second data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the first data; Perhaps, receive described the 5th data, described the 5th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 4th data, and described the 4th data that obtain are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the first data.

A kind of data handling system is characterized in that, comprising: first terminal, change of medium equipment and the second terminal; Described the second terminal, the coding that is used for the 6th data are carried out first medium territory Physical Coding Sublayer obtains the 7th data, and described the 7th data are carried out the coding of second medium territory Physical Coding Sublayer, obtains the 8th data; Perhaps, the 6th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 9th data; Described the 8th data or described the 9th data are sent to described change of medium equipment; Described change of medium equipment is used for receiving described the 8th data, and described the 8th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 7th data; Perhaps, receive described the 9th data, described the 9th data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the tenth data; Described the 7th data or the 9th data or described the tenth data are sent to described first terminal; Described first terminal is used for receiving respectively described the 7th data or described the 9th data or described the tenth data; Described the 7th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer obtains described the 9th data, and described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data.

A kind of terminal is characterized in that, comprising: the first receiving element is used for receiving the first data that medium access control MAC processing layer sends; Physical code unit, second medium territory, the coding for described the first data being carried out second medium territory Physical Coding Sublayer obtains the second data; Physical code unit, first medium territory, the coding for described the second data being carried out first medium territory Physical Coding Sublayer obtains the 3rd data; The first transmitting element is used for described the 3rd data or described the 4th data are sent to described change of medium equipment.

A kind of data processing method is characterized in that, comprising: receive the first data that medium access control MAC processing layer sends; The first data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the second data, described the second data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the 3rd data; Described the 3rd data or described the 4th data are sent to change of medium equipment.

A kind of terminal is characterized in that, comprising: the first receiving element is used for the second data and the 5th data that the receiver media conversion equipment sends; Second medium territory physical solution code element, be used for described the second data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the first data, perhaps described second medium territory physical solution code element is used for described the 5th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains decoded the 4th data; First medium territory physical solution code element is used for described the 4th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains the first data that first terminal sends; The first transmitting element is used for described the first data are sent to medium access control MAC processing layer.

The method that a kind of data are processed is characterized in that, comprising: the second data or the 5th data that the receiver media conversion equipment sends; Described the second data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the first data, perhaps described the 5th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain the 4th data, and described the 4th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtain the first data that first terminal sends; Described the first data are sent to medium access control MAC processing layer.

The embodiment of the invention provides a kind of data processing method, Apparatus and system by carry out first medium territory coding and second medium territory coding at first terminal, carries out the decoding of first medium territory at change of medium equipment, carries out the decoding of second medium territory in the second terminal; Perhaps carry out first medium territory coding at first terminal, carry out second medium territory coding at change of medium equipment, carry out the decoding of first medium territory and the decoding of second medium territory in the second terminal, integrated the error code correction ability in first medium territory and second medium territory, improve receiving terminal and received the accuracy that transmitting terminal sends data, simplified simultaneously the protocol architecture of change of medium equipment.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The schematic diagram of a kind of data handling system that Fig. 1 provides for the embodiment of the invention;

A kind of schematic diagram of data handling system after the change CNU structure that Fig. 2 provides for the embodiment of the invention;

A kind of schematic diagram of data handling system after the change OLT structure that Fig. 3 provides for the embodiment of the invention;

The schematic diagram of another kind of data handling system after the change CNU structure that Fig. 4 provides for the embodiment of the invention;

Only adopt a kind of schematic diagram of data handling system of coded system after the change CNU structure that Fig. 5 provides for the embodiment of the invention;

Only adopt a kind of schematic diagram of another kind of data handling system of coded system after the change CNU structure that Fig. 6 provides for the embodiment of the invention;

The flow chart of a kind of data processing method that Fig. 7 provides for the embodiment of the invention;

The flow chart of the another kind of data processing method that Fig. 8 provides for the embodiment of the invention;

The flow chart of the third data processing method that Fig. 9 provides for the embodiment of the invention;

The flow chart of up direction data processing method after the change CNU structure that Figure 10 provides for the embodiment of the invention;

The flow chart of down direction data processing method after the change OLT structure that Figure 11 provides for the embodiment of the invention;

The flow chart of another kind of data processing method after the change OLT structure that Figure 12 provides for the embodiment of the invention;

Only adopt a kind of flow chart of data processing method of coded system after the change CNU structure that Figure 13 provides for the embodiment of the invention;

Only adopt a kind of flow chart of another kind of data processing method of coded system after the change CNU structure that Figure 14 provides for the embodiment of the invention;

The flow chart of a kind of data processing method of up direction after the change OLT structure that Figure 15 provides for the embodiment of the invention;

The block diagram of a kind of change of medium equipment that Figure 16 provides for the embodiment of the invention;

The block diagram of the another kind of change of medium equipment that Figure 17 provides for the embodiment of the invention;

The block diagram of a kind of CNU that Figure 18 provides for the embodiment of the invention;

The block diagram of the another kind of CNU that Figure 19 provides for the embodiment of the invention;

The block diagram of a kind of OLT that Figure 20 provides for the embodiment of the invention;

The block diagram of the another kind of OLT that Figure 21 provides for the embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.

Need to prove that first terminal can be coaxial network unit CNU among the present invention, also can be the network terminal of All other routes connection, the terminal that for example connects by power line or telephone wire.The second terminal among the present invention can be the optical line terminal OLT among the EPON, can also be the terminal in GPON or other optical-fiber networks.Change of medium equipment among the present invention can be CLT, also can be CMC (Coax Media Converter, coaxial dielectric transducer), can also be MC (Media Converter, media converter), namely so long as can change the equipment of different medium and get final product.For convenience of description, the present invention take first terminal as CNU, change of medium equipment is described as OLT as example as CLT, the second terminal.

In addition, change of medium equipment comprises first medium processing section and second medium processing section, and wherein, first medium is different media with second medium, and the present invention is not limited concrete medium.For example, the first medium processing section can be processing section, copper territory, and the second medium processing section can be processing section, light territory; Perhaps, the first medium processing section can processing section, light territory, and the second medium processing section can be processing section, copper territory.The below is take first medium as coaxial cable, and second medium is that optical fiber Fiber is that example is described.

The embodiment of the invention provides a kind of data handling system, as shown in Figure 1, comprising: first terminal 100, change of medium equipment 200 and the second terminal 300; Link to each other by first medium between first terminal 100 and the change of medium equipment 200; Link to each other by second medium between the second terminal 300 and the change of medium equipment 200.

At up direction, described first terminal 100 is used for the first data are carried out the coding of second medium territory Physical Coding Sublayer, obtains the second data, and described the second data are carried out the coding of first medium territory Physical Coding Sublayer, obtains the 3rd data; Perhaps, the first data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the 4th data; Described the 3rd data or described the 4th data communication device are crossed first medium send to described change of medium equipment 200;

Described change of medium equipment 200 is used for receiving described the 3rd data, and described the 3rd data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains described the second data; Perhaps, receive described the 4th data, described the 4th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 5th data; Described the second data or described the 5th data communication device are crossed second medium send to described the second terminal 300;

Described the second terminal 300 is used for receiving described the second data, and described the second data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the first data; Perhaps, receive described the 5th data, described the 5th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 4th data, and described the 4th data that obtain are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the first data.

At down direction, described the second terminal 300 is used for the 6th data are carried out the coding of first medium territory Physical Coding Sublayer, obtains the 7th data, and described the 7th data are carried out the coding of second medium territory Physical Coding Sublayer, obtains the 8th data; Perhaps, the 6th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 9th data; Described the 8th data or described the 9th data communication device are crossed second medium send to described change of medium equipment 200;

Described change of medium equipment 200 is used for receiving described the 8th data, and described the 8th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 7th data; Perhaps, receive the 9th data, described the 9th data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the tenth data; Described the 7th data or the 9th data or described the tenth data communication device are crossed first medium send to described first terminal 100;

Described first terminal 100 is used for receiving respectively described the 7th data or described the 9th data or described the tenth data; Described the 7th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer obtains described the 9th data, and described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data; Perhaps, described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data.

Second medium territory Physical Coding Sublayer comprises: 1G EPON (Ethernet Passive Optical network, Ethernet passive optical network) or the Physical Coding Sublayer of 10G EPON, or 1GGPON (Gigabit-Capable Passive Optical network, gigabit passive optical network) or the GTC of 10GGPON (GPON Transmission Convergence, Gigabit Passive Optical Network Transmission Convergence) framing sublayer.First medium territory Physical Coding Sublayer can be coaxial cable COAX PCS (Physical Coding Sublayer, Physical Coding Sublayer).

Further, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, the described coding that the first data that receive are carried out second medium territory Physical Coding Sublayer comprised:

The first data that receive are carried out 8B/10B coding or 64B/66B coding and the forward error correction mode FEC coding of second medium territory Physical Coding Sublayer; Perhaps,

The first data that receive are carried out the forward error correction mode FEC coding of second medium territory Physical Coding Sublayer.

The described decoding of carrying out second medium territory Physical Coding Sublayer comprises:

Carry out forward error correction mode fec decoder and 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer.

The embodiment of the invention provides another kind of data handling system, need to prove, second medium territory Physical Coding Sublayer can be the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON; First medium territory Physical Coding Sublayer can be coaxial cable COAX PCS sublayer.

As shown in Figure 2, this system comprises: CNU 210, CLT220, second medium territory Physical Coding Sublayer 101 in the OLT230, CNU210, first medium territory Physical Coding Sublayer 102 in the CNU210, first medium territory Physical Coding Sublayer 201 in the CLT220, second medium territory Physical Coding Sublayer 301 in the OLT;

Need to prove that present embodiment is with originally placing the second medium territory physical coding sublayer of CLT220 to be placed on CNU210, and is concrete, increase second medium territory Physical Coding Sublayer on the upper strata of COAX PHY, as shown in Figure 2.

On up direction, after second medium territory Physical Coding Sublayer 101 receives the first data that medium access control MAC processing layer sends among the described CNU210, described the first data are carried out the coding of second medium territory Physical Coding Sublayer 101, obtain the second data;

Concrete, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, the coding that described the first data is carried out EPON PCS sublayer 101 comprises 8B/10B coding or the 64B/66B coding that described the first data is carried out EPON PCS sublayer 101, then the data behind the coding is carried out again the FEC coding of EPON PCS sublayer 101.When described second medium territory Physical Coding Sublayer is the GTC framing sublayer of 1G GPON or 10G GPON, described the first data are carried out the FEC coding of GTC framing sublayer.

Need to prove, when carrying out the coding of EPON PCS sublayer 101, the 8B/10B coding is carried out in the PCS sublayer of 1G EPON, the PCS sublayer of 10G EPON standard definition is the 64/66B coding, the present invention does not distinguish the type of EPON, so 8B/10B coding or 64B/66B coding can be carried out in EPON PCS sublayer 101.

First medium territory Physical Coding Sublayer 102 among the described CNU210 receives described the second data, and described the second data are carried out the coding of first medium territory Physical Coding Sublayer 102, obtains the 3rd data;

Wherein, described the second data are carried out the coding of first medium territory Physical Coding Sublayer 102, namely described the second data are carried out the FEC coding of first medium territory Physical Coding Sublayer 102.CNU210 upstream data of the present invention has passed through two-stage FEC concatenated coding.

CNU210 crosses coaxial cable COAX with described the 3rd data communication device and sends to CLT220;

After CLT220 receives described the 3rd data, process in processing section, first medium territory.Wherein, 201 pairs of described the 3rd data of the first medium territory Physical Coding Sublayer in the processing section, first medium territory are carried out the decoding of first medium territory Physical Coding Sublayer 201, obtain decoded described the second data;

Described CLT220 crosses processing section, light territory with described the second data communication device and sends to OLT230 at optical fiber Fiber, does not carry out the decoding of the second medium territory Physical Coding Sublayer of internal layer, thereby simplifies the protocol architecture of CLT220, so that be more suitable for end-to-end processing.

After described the second data that described OLT230 receives, carry out the decoding of second medium territory Physical Coding Sublayer 301 at second medium territory Physical Coding Sublayer 301.

For example, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, carry out first the fec decoder of EPON PCS sublayer 301, carry out again 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer 301, thereby obtain described the first data that CNU210 sends.When described second medium territory Physical Coding Sublayer was the GTC framing sublayer of 1G GPON or 10G GPON, the fec decoder that described the second data is carried out GTC framing sublayer obtained described the first data that CNU210 sends.

Described OLT230 mails to the upper strata with described the first data to be processed.

On down direction, dual mode can be arranged, a kind of is the same with the system schematic of accompanying drawing 2;

Concrete, OLT230 receives the 6th data that the MAC processing layer sends, and described the 6th data are carried out the coding of second medium territory Physical Coding Sublayer at second medium territory Physical Coding Sublayer 301, obtains the 9th data; OLT230 crosses optical fiber with described the 9th data communication device and sends to CLT220;

Described CLT220 receives described the 9th data, do not carry out the processing of second medium territory Physical Coding Sublayer, but directly send to processing section, first medium territory, and carry out the coding of first medium territory Physical Coding Sublayer by first medium territory Physical Coding Sublayer 201, obtain the tenth data; Described the tenth data communication device that obtains is crossed coaxial cable send to CNU210;

Described CNU210 receives described the tenth data, carries out the decoding of first medium territory Physical Coding Sublayer at first medium territory Physical Coding Sublayer 102, the 9th data of acquisition; Carry out the decoding of second medium territory Physical Coding Sublayer at second medium territory Physical Coding Sublayer 101, obtain described the 6th data that described OLT300 sends.

On down direction, another kind of mode can be arranged, example system schematic as shown in Figure 3, namely up direction is different with the path of down direction transfer of data.As shown in Figure 3, this system comprises: CNU310, CLT320, OLT330, first medium territory Physical Coding Sublayer 302 among the OLT 330, second medium territory Physical Coding Sublayer 301 among the OLT, second medium territory Physical Coding Sublayer 202 among the CLT 320, first medium territory Physical Coding Sublayer 102 among the CNU310;

Need to prove that on down direction, present embodiment will originally place the first medium territory Physical Coding Sublayer 302 of CLT320 to place in the OLT330.

Concrete, after first medium territory Physical Coding Sublayer 302 receives the 6th data of MAC processing layer transmission among the OLT330, described the 6th data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the 7th data, optionally, carry out the FEC coding that being encoded to of first medium territory Physical Coding Sublayer carried out first medium territory Physical Coding Sublayer.

Described second medium territory Physical Coding Sublayer 301 receives described the 7th data after first medium territory Physical Coding Sublayers 302 are processed, and described the 7th data are carried out the coding of second medium territory Physical Coding Sublayer, obtains the 8th data;

Described second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G Ethernet passive optical network EPON, or the GTC framing sublayer of 1G gigabit passive optical network GPON or 10G gigabit passive optical network GPON.

Concrete, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, after the coding that carries out second medium territory Physical Coding Sublayer comprises that the 8B/10B of EPON PCS sublayer encodes or 64B/66B encodes, again the data behind the coding are carried out the FEC coding of EPON PCS sublayer, obtain described the 8th data.OLT330 crosses optical fiber with described the 8th data communication device and sends to CLT320.When described second medium territory Physical Coding Sublayer was the GTC framing sublayer of 1G GPON or 10G GPON, the FEC that described the second data is carried out GTC framing sublayer encoded, and obtains described the 8th data.

Described CLT320 receives the 8th data that described OLT330 sends, and processes in the processing section, second medium territory of described CLT320.202 pairs of described the 8th data of second medium territory Physical Coding Sublayer in the concrete processing section, second medium territory are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 7th data; CLT320 crosses processing section, first medium territory with described the 7th data communication device and sends to CNU310 at coaxial cable.

Need to prove, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, the decoding of carrying out EPON PCS sublayer comprises the fec decoder of EPON PCS sublayer, more decoded data is carried out 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer.When described second medium territory Physical Coding Sublayer is the GTC framing sublayer of 1G GPON or 10G GPON, described the second data are carried out the fec decoder of GTC framing sublayer, obtain described the 8th data.

Described CUN100 receives described the 7th data, and described the 7th data are carried out the decoding of first medium territory Physical Coding Sublayer at first medium territory Physical Coding Sublayer 102, obtains described the 6th data that OLT330 sends.

Need to prove, if OLT sends to the data of ONU, then do not carry out the coding of first medium territory Physical Coding Sublayer.

The system that a kind of data that the embodiment of the invention provides are processed, by will originally placing the second medium territory Physical Coding Sublayer of CLT 320 to be placed at OLT330, so that processing, the encoding and decoding of second medium territory Physical Coding Sublayer in OLT, carry out, thereby simplify the CLT protocol architecture, so that system is more suitable for is end-to-end.Because the coding in second medium territory and the coding in first medium territory combine, can be so that receiving terminal obtains the correct data that transmitting terminal sends.

The system that the another kind of data that the embodiment of the invention provides are processed need to prove that second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G EPON or 10G EPON, or the GTC framing sublayer of 1G GPON or 10GGPON.When described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, then the coding/decoding of second medium territory Physical Coding Sublayer can be 8B/10B coding/decoding or 64B/66B coding/decoding and FEC coding/decoding.For convenience, the Physical Coding Sublayer of the embodiment of the invention take second medium territory Physical Coding Sublayer as 1G Ethernet passive optical network EPON or 10GEPON in addition, further is the light territory take the second medium territory, and the first medium territory is that the copper territory is described.

As shown in Figure 4, described system comprises: CNU410, CLT420, OLT430, EPON FEC module 103 among the CNU410, the COAX PCS sublayer 102 among the CNU410, COAX PCS sublayer 201 among the CLT420,8B/10B coding or 64B/66B coding module 203 among the CLT420, EPON PCS sublayer 301 among the OLT430;

The processing of EPON PCS sublayer is divided into two parts, a part is carried out 8B/10B coding or 64B/66B coding/decoding, another part carries out the FEC coding/decoding module that the COAX PCS sublayer of FEC coding/decoding in CNU410 increases the EPONPCS sublayer, namely increases EPON FEC module 103.

Concrete, at up direction, after the EPON FEC module 103 among the CNU410 receives the first data of MAC processing layer transmission, described the first data are carried out the FEC coding of EPON PCS sublayer, be the second coding of EPON PCS sublayer, obtain through the data behind the second coding;

COAX PCS sublayer 102 among the CNU410 receives the data behind described the second coding, carries out the coding of COAX PCS sublayer, namely carries out the FEC coding of COAX PCS sublayer.Described CNU410 will send to CLT420 through the data behind the concatenated coding;

Need to prove that the data before 8B/10B coding or the 64B/66B coding can improve efficiency of transmission when transmission over coaxial cable, avoid the bandwidth efficiency waste.

Described CLT420 carries out the decoding of COAX PCS sublayer in the COAX PCS sublayer 201 of processing section, copper territory after receiving data through concatenated coding, then decoded data is sent to processing section, light territory.

8B/10B in the processing section, light territory coding or 64B/66B coding module 203 receive the 8B/10B coding or the 64B/66B coding that carry out EPON PCS sublayer after these data and process.Data after this moment, process CNU410 and CLT420 processed have been passed through FEC coding and 8B/10B or the 64B/66B coding of EPON PCS sublayer, will be called the second data through the data behind the coding of EPON PCS sublayer.Described CLT420 crosses optical fiber with described the second data communication device and sends to OLT430.

After described OLT430 receives described the second data, carry out the decoding of EPON PCS sublayer 301 in EPON PCS sublayer 301, namely carry out first the fec decoder of EPON PCS sublayer 301, carry out again 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer 301, thereby obtain described the first data that CNU100 sends.OLT300 mails to the upper strata with described the first data to be processed.

At down direction, can adopt the schematic diagram shown in the accompanying drawing 4, namely the path of the transfer of data of up direction and down direction is identical.

Concrete, after OLT430 received the 6th data that the MAC processing layer sends, the coding of EPON PCS sublayer was carried out with described the 6th data in EPON PCS sublayer 301, obtains the 9th data; Concrete, the FEC that described the 6th data is carried out first EPON PCS sublayer encodes, and the data after will encoding are again carried out 8B/10B coding or the 64B/66B coding of EPON PCS sublayer.Described OLT430 crosses optical fiber with described the 9th data communication device and sends to CLT420.

After described CLT420 received described the 9th data, 201 pairs of described the 9th data in the COAX PCS sublayer in the processing section, copper territory were carried out the coding of COAX PCS sublayer, obtain the tenth data.Described CLT420 crosses coaxial cable with described the tenth data communication device and sends to CNU410.

After described CNU410 receives described the tenth data, carry out the decoding of COAX PCS sublayer in COAX PCS sublayer 102, the decoded data that obtain are carried out the second decoding of EPON PCS sublayer in EPON FEC module 103, obtain described the 6th data that described OLT430 sends.

The system that a kind of data that the embodiment of the invention provides are processed combines by the coding of EPON and the coding of COAX, can be so that receiving terminal obtains the correct data that transmitting terminal sends.And further the data before 8B/10B coding or the 64B/66B coding are carried at coaxial cable, improve load-carrying efficiency, reduce the bandwidth waste rate.

The system that the another kind of data that the embodiment of the invention provides are processed, need to prove, second medium territory Physical Coding Sublayer can be the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON; First medium territory Physical Coding Sublayer can be coaxial cable COAX PCS sublayer.As shown in Figure 5, this system comprises: CNU510, CLT520, OLT530, second medium territory Physical Coding Sublayer 101 among the CNU510, second medium territory Physical Coding Sublayer 301 among the OLT530;

To originally place the second medium territory physical coding sublayer of CLT520 to be placed on CNU510, concrete, second medium territory physical code is placed the PCS sublayer that does not define COAXPHY on the CNU100 COAX PHY at native system, only carry out end to end transfer of data with second medium territory physical code.

At up direction, the first data that the MAC processing layer that 101 pairs of second medium territory Physical Coding Sublayers receive among the CNU510 sends are carried out the coding of second medium territory Physical Coding Sublayer, obtain the second data.

Concrete, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, described the first data are carried out 8B/10B coding or the 64B/66B coding of EPON PCS sublayer, and then carry out the FEC coding of EPON PCS sublayer.When described second medium territory Physical Coding Sublayer was the GTC framing sublayer of 1G GPON or 10G GPON, the FEC that described the first data is carried out GTC framing sublayer encoded, and obtains the second data.

Described the second data that described CNU510 will obtain send to CLT520.

Described the second data that described CLT520 will receive directly send to OLT530, thereby simplify the protocol architecture of CLT520.

After described OLT530 receives described the second data, carry out the decoding of second medium territory Physical Coding Sublayer at second medium territory Physical Coding Sublayer 301, obtain described the first data that described CNU510 sends.

Concrete, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, described the second data are carried out the fec decoder of EPON PCS sublayer, and then carry out 8B/10B decoding or the 64B/66B decoding of EPONPCS sublayer.When described second medium territory Physical Coding Sublayer is the GTC framing sublayer of 1G GPON or 10G GPON, described the second data are carried out the fec decoder of GTC framing sublayer.

The system that the embodiment of the invention provides a kind of data to process finishes OLT to the end to end error code correction of CNU by the encoding and decoding of second medium territory Physical Coding Sublayer, so that receiving terminal obtains the correct data that transmitting terminal sends, and simplifies the protocol architecture of CLT.

The system that the another kind of data that the embodiment of the invention provides are processed, the second medium territory Physical Coding Sublayer that provides in the embodiment of the invention is the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, as shown in Figure 6, this system comprises: CNU610, CLT620, OLT630, the EPON FEC module 103 among the CNU610, the 8B/10B coding among the CLT620 or the EPONPCS sublayer 301 among the 64B/66B coding module 203OLT630;

To originally place the FEC module of the EPON PCS sublayer of CLT620 to place OLT630,8B/10B coding or 64B/66B coding module be arranged in processing section, CLT620 light territory.In native system, do not define the PCS sublayer of COAX PHY, only carry out end to end transfer of data with EPON PCS.

At up direction, after the EPON FEC module 103 among the CNU610 received the first data of MAC processing layer transmission, the FEC that described the first data is carried out EPON PCS sublayer encoded, the data behind acquisition the second coding.Data communication device after described CNU610 encodes described second is crossed coaxial cable and is sent to CLT620.

Described CLT620 receive described second the coding after data after, processing section, copper territory is left intact, directly send to processing section, light territory, the 8B/10B of processing section, light territory coding or 64B/66B coding module 203 receive the 8B/10B coding or the 64B/66B coding that carry out EPON PCS sublayer after these data and process.Data after this moment, process CNU and CLT processed have been passed through FEC coding and 8B/10B coding or the 64B/66B coding of EPON PCS sublayer, and the data after will encoding through EPON PCS sublayer be called the second data.Described CLT620 crosses optical fiber with described the second data communication device and sends to OLT630.

After described OLT630 receives described the second data, carry out the decoding of EPON PCS sublayer 301 in EPON PCS sublayer 301, namely carry out first the second decoding of EPON PCS sublayer 301, carry out again the first decoding of EPON PCS sublayer 301, namely to described the second data, carry out first the fec decoder of EPON PCS sublayer 301, carry out again 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer 301, thereby obtain described the first data that CNU100 sends.OLT300 mails to the upper strata with described the first data to be processed.

At down direction, can adopt the schematic diagram shown in the accompanying drawing 6, namely the path of the transfer of data of up direction and down direction is identical.

Concrete, after OLT630 received the 6th data that the MAC processing layer sends, the coding of EPON PCS sublayer was carried out with described the 6th data in EPON PCS sublayer 301, obtains the 9th data; Concrete, described the 6th data are carried out the second coding of EPON PCS sublayer and the FEC coding of EPON PCS sublayer, the data after will encoding are again carried out 8B/10B coding or the 64B/66B coding of EPON PCS sublayer.Described OLT630 crosses optical fiber with described the 9th data communication device and sends to CLT620.

After described CLT620 receives described the 9th data, at the light territory of described CLT620 processing section 8B/10B decoding or 64B/66B decoder module 203, carry out EPON PCS sublayer 8B/10B decoding or 64B/66B decoding; Described CLT620 sends to processing section, copper territory with decoded data.Processing section, copper territory directly sends to CNU610. after receiving these data

The EPON FEC module 103 of described CNU610 receives through 8B/10B decoding or the decoded data of 64B/66B decoder module, and described data are carried out the fec decoder of EPON PCS sublayer, obtains the 6th data that described OLT630 sends to CNU610.

The system that the embodiment of the invention provides a kind of data to process, finish OLT to the end to end error code correction of CNU by the encoding and decoding of adopting EPON PCS sublayer, so that receiving terminal obtains the correct data that transmitting terminal sends, and the data before 8B/10B coding or the 64B/66B coding are carried at coaxial cable, can improve load-carrying efficiency, reduce the bandwidth waste rate.

Need to prove that the scheme that the above embodiment of the present invention provides can be applied in No-MAC scheme, 1.5MAC scheme, the 2MAC scheme etc.The No-MAC scheme is only to have defined physical layer for CLT in the present embodiment, finishes the conversion of physical medium, there is no the MAC function.1.5MAC scheme is CLT MAC layer definition arranged, but the MAC layer of CLT does not carry out allocated bandwidth to the CNU in copper territory, but according to the bandwidth allocation information of OLT, translate into time corresponding to coaxial cable.The 2MAC scheme is that independently bandwidth scheduling is adopted respectively in light territory and copper territory, the allocated bandwidth of CLT complete independently copper territory part.

The method that the embodiment of the invention provides a kind of data to process, the executive agent of the method is change of medium equipment, as shown in Figure 7, the method may further comprise the steps:

Step 701 receives respectively the 3rd data or the 4th data that first terminal sends;

First terminal can be CNU.

Step 702 is carried out the decoding of first medium territory Physical Coding Sublayer to described the 3rd data, obtains described the second data; Perhaps, described the 4th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 5th data;

Described second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G Ethernet passive optical network EPON, or the Gigabit Passive Optical Network Transmission Convergence GTC framing sublayer of 1G gigabit passive optical network GPON or 10G gigabit passive optical network GPON.Described first medium territory Physical Coding Sublayer is COAX PCS sublayer.

Further, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, the described coding that carries out second medium territory Physical Coding Sublayer comprised:

Carry out 8B/10B coding or 64B/66B coding and the forward error correction mode FEC coding of second medium territory Physical Coding Sublayer.

Step 703 sends to the second terminal with described the second data or described the 5th data.

The second terminal can be OLT.

Need to prove, the method also further comprises: receive that described first terminal sends through the data behind the coding of the second coding of second medium territory Physical Coding Sublayer and described first medium territory Physical Coding Sublayer, and carry out the decoding of first medium territory Physical Coding Sublayer, and the first coding that carries out second medium territory Physical Coding Sublayer, obtain described the second data; Perhaps,

Receive the second coded data through second medium territory Physical Coding Sublayer that described first terminal sends, and carry out the first coding of second medium territory Physical Coding Sublayer, obtain described the second data.

Optionally, at down direction, receive respectively the 8th data or the 9th data that described the second terminal sends;

Described the 8th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 7th data; Perhaps, described the 9th data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the tenth data;

Further, described the 9th data are carried out the first decoding of second medium territory Physical Coding Sublayer; The first decoded data that obtains is carried out the coding of first medium territory Physical Coding Sublayer, obtain the 11 data; Perhaps,

Described the 9th data are carried out the first decoding of second medium territory Physical Coding Sublayer, obtain described the first decoded data.

Described the 7th data or described the 9th data or described the tenth data or described the 11 data or described the first decoded data are sent to described first terminal.

The method that the embodiment of the invention provides a kind of data to process is by the further processing of data that the first terminal that receives or the second terminal are sent, so that can simplify change of medium equipment.

The embodiment of the invention provides another kind of data processing method, and the executive agent of the method is first terminal, is described take first terminal as CNU in the embodiment of the invention.Need to prove that increase the forward error correction mode FEC module of second medium territory Physical Coding Sublayer or increase second medium territory Physical Coding Sublayer in CNU, as shown in Figure 8, the method may further comprise the steps:

Step 801 receives the first data that the medium access control MAC processing layer in the first terminal sends;

Step 802 at up direction, is carried out the coding of second medium territory Physical Coding Sublayer to described the first data, obtains the second data;

Described second medium territory Physical Coding Sublayer can be the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10GEPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON.Described first medium territory Physical Coding Sublayer can be coaxial cable COAX PCS sublayer.

When described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, the described coding that carries out second medium territory Physical Coding Sublayer comprised: the 8B/10B coding or 64B/66B coding and the fec decoder that carry out second medium territory Physical Coding Sublayer.When second medium territory Physical Coding Sublayer is the physical code PCS sublayer of 1G GPON or 10G GPON, can adopt GTC framing sublayer to carry out FEC coding or decoding, the present invention is not limited.

Step 803 is carried out the coding of first medium territory Physical Coding Sublayer to described the second data, obtains the 3rd data;

Step 804 is carried out the coding of first medium territory Physical Coding Sublayer to the first data, obtains the 4th data;

Need to prove that this step is the another kind of processing method to described the first data, with step 802 and step 803 be step arranged side by side, represent by empty arrow in the accompanying drawing 8.

Step 805 sends to change of medium equipment with described the 3rd data or described the 4th data.

After this step, further comprise:

At down direction, the 7th data or the 9th data or the tenth data that difference receiver media conversion equipment sends;

Described the 7th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer obtains described the 9th data, and described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data; Perhaps, described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data; Described the 6th data are sent to described MAC processing layer.

Need to prove, described the 9th data are carried out the 9th data that the 9th data in the decoding of second medium territory Physical Coding Sublayer comprise that the change of medium equipment that receives sends, the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer obtains the 9th data.

Concrete, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, the decoding of carrying out second medium territory Physical Coding Sublayer comprised: the 8B/10B decoding or 64B/66B decoding and the fec decoder that carry out second medium territory Physical Coding Sublayer.When described second medium territory Physical Coding Sublayer was the GTC framing sublayer of 1G GPON or 10G GPON, the decoding of carrying out second medium territory Physical Coding Sublayer comprised the fec decoder that carries out GTC framing sublayer.

Further, at down direction, receive the 11 data or the first decoded data that described change of medium equipment sends;

Described the 11 data are carried out the decoding of first medium territory Physical Coding Sublayer, decoded data are carried out the second decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, described the first decoded data is carried out the second decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data.Described the 6th data are sent to described MAC processing layer.

The method that the embodiment of the invention provides a kind of data to process, the first data that send by receiving medium access control MAC processing layer; At up direction, the first data that receive are carried out the coding of second medium territory Physical Coding Sublayer; Perhaps, the first data that receive are carried out the FEC coding of second medium territory Physical Coding Sublayer; Data behind the coding are sent to change of medium equipment.During with the employing prior art, when the error code of introducing when the copper territory had surpassed the FEC error correcting capability in copper territory, secondary coding can be carried out to the data of copper territory mistake in the light territory; Equally, the error code of introducing when the light territory has surpassed the FEC error correcting capability in light territory, secondary coding can be carried out to the data of light territory mistake in the copper territory, like this, the correct data that will cause receiving terminal can't obtain the transmitting terminal transmission is compared, and the scheme that the embodiment of the invention provides can obtain the correct data that transmitting terminal sends at receiving terminal.

The method that the embodiment of the invention provides another kind of data to process, the executive agent of the method is the second terminal, is described take the second terminal as optical line terminal OLT in the embodiment of the invention, wherein, increase first medium territory Physical Coding Sublayer at OLT, as shown in Figure 9, the method may further comprise the steps:

Step 901, the second data or the 5th data that the receiver media conversion equipment sends;

Step 902 is carried out the decoding of second medium territory Physical Coding Sublayer to described the second data, obtains described the first data;

Step 903 is carried out the decoding of second medium territory Physical Coding Sublayer to described the 5th data, obtains described the 4th data, and described the 4th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains the first data that first terminal sends;

Need to prove that this step and step 902 are two kinds of different technical methods, represent optional two kinds of methods by empty arrow in the accompanying drawing 9.

Described second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10GEPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON.Described first medium territory Physical Coding Sublayer comprises: COAX PCS sublayer.

When described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, the decoding of described second medium territory Physical Coding Sublayer comprised fec decoder and 8B/10B decoding or 64B/66B decoding.When described second medium territory Physical Coding Sublayer was the GTC framing sublayer of 1G GPON or 10G GPON, the described coding that carries out second medium territory Physical Coding Sublayer comprised: the FEC coding that carries out GTC framing sublayer.

Step 904 sends to medium access control MAC processing layer with described the first data.

After this step, further comprise:

Receive the 6th data that the MAC processing layer sends;

The coding that the 6th data is carried out first medium territory Physical Coding Sublayer obtains the 7th data, and described the 7th data are carried out the coding of second medium territory Physical Coding Sublayer, obtains the 8th data; Perhaps, the 6th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 9th data; Described the 8th data or described the 9th data are sent to change of medium equipment.

The method that the embodiment of the invention provides a kind of data to process, by at up direction, the data that the receiver media conversion equipment sends; The described data that receive are carried out the decoding of second medium territory Physical Coding Sublayer, carry out the decoding of first medium territory Physical Coding Sublayer with obtaining described decoded data, obtain the first data that coaxial network unit CNU sends; Described the first data are sent to medium access control MAC processing layer.The scheme that the embodiment of the invention provides by can second medium territory Physical Coding Sublayer and the encoding and decoding of first medium territory Physical Coding Sublayer combine so that obtain the correct data that transmitting terminal sends at receiving terminal.

Need to prove that second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON.Described first medium territory Physical Coding Sublayer comprises: COAX PCS sublayer.

But, when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10G EPON, the coding/decoding that carries out EPON PCS sublayer comprises 8B/10B coding/solution or the 64B/66B coding/decoding that carries out EPON PCS sublayer, then the data behind the coding is carried out again the FEC coding/decoding of EPON PCS sublayer.When described second medium territory Physical Coding Sublayer was the GTC framing sublayer of 1G GPON or 10G GPON, the coding/decoding that carries out GPON PCS sublayer comprised the FEC coding/decoding that carries out GTC framing sublayer.

The present invention does not limit first medium territory Physical Coding Sublayer and second medium territory Physical Coding Sublayer, but for detailed description, below embodiment take second medium territory Physical Coding Sublayer as EPON PCS sublayer, first medium territory Physical Coding Sublayer can be described as COAX PCS sublayer as example.

The method that the embodiment of the invention provides another kind of data to process, as shown in figure 10, the method comprises:

Step 1001, at up direction, coaxial network unit CNU receives the first data that medium access control MAC processing layer sends;

Step 1002, described CNU carries out the coding of EPON PCS sublayer to described the first data, obtains the second data;

8B/10B coding or 64B/66B coding and the FEC coding of EPON PCS sublayer carried out in the EPON PCS sublayer that increases in CNU.

Step 1003, described second data of described CNU after to coding are carried out the coding of COAX PCS sublayer, obtain the 3rd data;

Original COAX PCS carries out the sublayer coding of COAX PCS sublayer in CNU, namely carries out the FEC coding of COAX PCS sublayer.

Step 1004, described CNU sends to coaxial line terminal CLT with described the 3rd data;

CNU sends to CLT by coaxial cable.

Step 1005, described CLT receives described the 3rd data, and described the 3rd data are carried out the decoding of COAX PCS sublayer, obtains described the second data;

In CLT, comprise processing section, copper territory and processing section, light territory; Wherein, processing section, copper territory comprises the COAXPCS sublayer, and the present invention places CNU with the EPON PCS sublayer of processing section, light territory, and CLT does not carry out the light territory to described the 3rd data to be processed.Process but only carry out the copper territory, can simplify like this protocol architecture of CLT.

Step 1006, described CLT sends to optical line terminal OLT with described the second data;

CLT sends to OLT by optical fiber with the second data.

Step 1007, described OLT receives described the second data, and described the second data are carried out the decoding of EPON PCS sublayer, obtains described the first data that described CNU sends;

Carry out respectively the fec decoder of EPON PCS sublayer in the EPON of described OLT PCS sublayer, carry out again 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer.

Step 1008, described OLT sends to the MAC processing layer with described the first data.

OLT is sent to identical that the path of the transfer of data of CNU can be with up direction at down direction, the present invention is not described in detail, and specifically can describe with reference to the system shown in the accompanying drawing 2.The path that OLT is sent to the transfer of data of CNU at down direction also can be different from the path of up direction, need this moment existing OLT is changed, and as shown in figure 11, the method may further comprise the steps:

Step 1101, OLT receives the 6th data that the MAC processing layer sends;

Step 1102, described OLT carries out the coding of COAX PCS sublayer to described the 6th data, obtains the 7th data;

COAX PCS sublayer among the CLT is placed described OLT, increase the processing to the COAX PCS sublayer of data.Concrete, the FEC that described the 6th data is carried out COAX PCS sublayer encodes.

Step 1103, described OLT carries out the coding of EPON PCS sublayer to described the 7th data, obtains the 8th data;

Original EPON PCS carries out the sublayer 8B/10B coding or the 64B/66B coding of EPON PCS sublayer in described OLT, the data behind the coding is carried out the FEC coding of EPON PCS sublayer again.

Step 1104, described OLT sends to CLT with described the 8th data;

Concrete, described OLT will state the 8th data by optical fiber and send to CLT.

Step 1105, described CLT receives described the 8th data, and described the 8th data are carried out the decoding of EPON PCS sublayer, obtains described the 7th data;

Concrete, comprise processing section, light territory and processing section, copper territory among the described CLT, processing section, described smooth territory comprises EPON PCS sublayer, the COAX PCS sublayer of processing section, copper territory is placed OLT, so the processing of COAX PCS sublayer is not carried out in processing section, copper territory.

Step 1106, described CLT sends to CNU with described the 7th data;

Described CLT sends to CNU by coaxial cable with the 7th data.

Step 1107, described CNU receives described the 7th data, and described the 7th data are carried out the decoding of COAX PCS sublayer, obtains described the 6th data;

Original COAX PCS carries out the sublayer fec decoder of COAX PCS sublayer in described CNU, obtains the 6th data that described OLT sends.

Step 1108, described CNU sends to the MAC processing layer with described the 6th data.

The method that the embodiment of the invention provides a kind of data to process by simplifying CLT, is independently gone out the encoding and decoding part of PON or COAX, is put among CNU or the OLT, can solve the problem of the receiving terminal receive data accuracy that exists in the prior art.

The method that the embodiment of the invention provides another kind of data to process, as shown in figure 12, the method comprises:

Step 1201, at up direction, coaxial network unit CNU receives the first data that medium access control MAC processing layer sends;

Step 1202, the FEC that described CNU carries out EPON PCS sublayer to described the first data encodes, and obtains the data after FEC encodes;

Present embodiment is divided into two parts with the processing of EPON PCS sublayer, and a part is carried out 8B/10B coding or 64B/66B coding/decoding, and another part carries out the FEC coding/decoding.COAX PCS sublayer in CNU increases the FEC coding/decoding module of EPON PCS sublayer.After EPON PCS sublayer receives described the first data, described the first data are carried out the FEC coding of EPON PCS sublayer.

Step 1203, the data of described CNU after with described FEC coding, carry out the coding of COAX PCS sublayer after, send to CLT;

The coding that carries out COAX PCS sublayer namely carries out the FEC coding of COAX PCS sublayer.

Step 1204, described CLT receives the data behind the coding that described CNU sends, carry out the decoding of COAX PCS sublayer after, carry out again 8B/10B coding or the 64B/66B coding of EPON PCS sublayer, obtain the second data;

CLT comprises processing section, copper territory and processing section, light territory, after the decoding of COAX PCS sublayer is carried out in the COAX PCS sublayer of processing section, copper territory, send to processing section, light territory, processing section, light territory comprises 8B/10B coding or the 64B/66B coding module of EPON PCS sublayer, carries out 8B/10B coding or the 64B/66B coding of EPON PCS sublayer.This moment, the first data were encoded and 8B/10B coding or 64B/66B coding through the FEC of EPON PCS sublayer, and the data behind the coding are become the second data.

Step 1205, described CLT sends to OLT with described the second data;

Concrete, CLT sends to OLT by optical fiber with the second data.

Step 1206, described OLT carries out the decoding of EPON PCS sublayer after receiving described the second data, obtains described the first data that described CNU sends;

Concrete, carry out successively the fec decoder of EPON PCS sublayer and 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer in EPON PCS sublayer

Step 1207, described OLT sends to the MAC processing layer with described the first data.

Need to prove that at down direction, the path that data are processed is identical with up direction, specifically can with reference to the system schematic shown in the accompanying drawing 4, not describe in detail one by one at this.

The method that a kind of data that the embodiment of the invention provides are processed combines by the coding of EPON and the coding of COAX, can be so that receiving terminal obtains the correct data that transmitting terminal sends.And further the data before the 8B/10B coding are carried at coaxial cable, improve load-carrying efficiency, reduce the bandwidth waste rate.

The method that the embodiment of the invention provides a kind of data to process, as shown in figure 13, the method comprises:

Step 1301, at up direction, CNU receives the first data that medium access control MAC processing layer sends;

Step 1302, described CNU carries out the coding of EPON PCS sublayer to described the first data, obtains the second data;

In the present embodiment EPON PCS sublayer among the CLT is placed CNU, concrete, EPON PCS is placed on the CNU COAX PHY.In native system, do not define the PCS sublayer of COAX PHY, only carry out end to end transfer of data with EPON PCS.

Step 1303, described CNU crosses CLT with described the second data communication device and sends to OLT;

In the present embodiment, CLT does not do any processing to data, can simplify like this protocol architecture of CLT.

Step 1304 after described OLT receives described the second data, is carried out the decoding of EPON PCS sublayer to described the second data, obtains the first data that described CNU sends;

Step 1305, described OLT sends to the MAC processing layer with described the first data.

At down direction, the path that data are processed is identical with up direction, specifically can with reference to the system schematic shown in the accompanying drawing 5, not describe in detail one by one at this.

The method that the embodiment of the invention provides a kind of data to process is finished OLT to the end to end error code correction of CNU by the encoding and decoding of EPON PCS sublayer, so that receiving terminal obtains the correct data that transmitting terminal sends, and simplifies the protocol architecture of CLT.

The method that the embodiment of the invention provides another kind of data to process, as shown in figure 14, the method comprises:

Step 1401, at up direction, CNU receives the first data that medium access control MAC processing layer sends;

Step 1402, the FEC that described CNU carries out EPON PCS sublayer to described the first data encodes, and obtains the data after FEC encodes;

Present embodiment places CNU with the FEC module of the EPON PCS sublayer among the CLT, and 8B/10B coding or 64B/66B coding module are arranged in processing section, CLT200 light territory.Concrete, EPON FEC module is placed on the CNU COAX PHY.In native system, do not define the PCS sublayer of COAX PHY, only carry out end to end transfer of data with EPON PCS.

Step 1403, the data after described CNU encodes described FEC send to CLT;

Step 1404, described CLT carries out 8B/10B coding or 64B/66B coding to the data behind the described FEC coding after receiving data behind the described FEC coding, obtains the second data;

Described CLT receive described second the coding after data after, processing section, copper territory is left intact, directly send to processing section, light territory, the 8B/10B of processing section, light territory coding or 64B/66B coding module receive the 8B/10B coding or the 64B/66B coding that carry out EPON PCS sublayer after these data and process.Data after this moment, process CNU and CLT processed have been passed through FEC coding and the 8B/10B coding of EPON PCS sublayer, will be called the second data through the data behind the coding of EPON PCS sublayer.

Step 1405, described CLT sends to OLT with described the second data;

Step 1406, described OLT receives described the second data, and described the second data are carried out the decoding of EPON PCS sublayer, obtains described the first data that described CNU sends;

After described OLT receives described the second data, carry out first the fec decoder of EPON PCS sublayer, carry out again 8B/10B decoding or the 64B/66B decoding of EPON PCS sublayer, thereby obtain described the first data that CNU sends.

Step 1407, described OLT sends to the MAC processing layer with described the first data.

The path that data are processed on down direction is identical with up direction, specifically can with reference to the system schematic shown in the accompanying drawing 6, not describe in detail one by one at this.

The method that the embodiment of the invention provides a kind of data to process, finish OLT to the end to end error code correction of CNU by the encoding and decoding of adopting EPON PCS sublayer, so that receiving terminal obtains the correct data that transmitting terminal sends, and the data before 8B/10B coding or the 64B/66B coding are carried at coaxial cable, can improve load-carrying efficiency, reduce the bandwidth waste rate.

The method that the embodiment of the invention provides another kind of data to process, as shown in figure 15, the method comprises:

Step 1501, at up direction, CNU receives the first data that medium access control MAC processing layer sends;

Step 1502, described CNU carries out the coding of COAX PCS sublayer with described the first data, obtains the 4th data;

Present embodiment does not change CNU, so comprises COAX PCS sublayer among the CNU, the first data is carried out the FEC coding of COAX PCS sublayer in COAX PCS sublayer.

Step 1503, described CNU sends to CLT with described the 4th data;

Step 1504, described CLT receives described the 4th data, and described the 4th data are carried out the coding of EPON PCS sublayer, obtains the 5th data;

In CLT, comprise processing section, copper territory and processing section, light territory, after at first processing section, copper territory receives described the 4th data, directly send to processing section, light territory, the coding of the EPON PCS sublayer that carry out the 4th data the EPON PCS sublayer in the processing section, light territory.

Step 1505, described CLT sends to OLT with described the 5th data;

Step 1506, described OLT receives described the 5th data, and described the 5th data are carried out the decoding of EPON PCS sublayer, obtains described the 4th data;

Step 1507, described OLT carries out the decoding of COAX PCS sublayer to described the 4th data, obtains described the first data;

Present embodiment places OLT with the COAX PCS sublayer among the CLT, namely increases COAX PCS sublayer to the processing of data in OLT.

Step 1508, described OLT sends to the MAC processing layer with described the first data.

At down direction, can dilating of the path that data are processed and up direction specifically can referring to the system schematic shown in the accompanying drawing 3, do not described in detail at this one by one.Need to prove, for the data that OLT directly sends to ONU, can not pass through the processing of COAX PCS sublayer.

The method that a kind of data that the embodiment of the invention provides are processed by EPON PCS sublayer among the CLT is placed at CNU, is carried out in CNU so that the coding of EPON PCS sublayer is processed, thereby is simplified the CLT protocol architecture, so that system is more suitable for is end-to-end.Because the coding of EPON and the coding of COAX combine, can be so that receiving terminal obtains the correct data that transmitting terminal sends.

The embodiment of the invention provides a kind of change of medium equipment, and this change of medium equipment can be CLT, also can be CMC or MC, namely has the equipment of changing different medium and carrying out respective handling.As shown in figure 16, this device comprises: the first receiving element 1601, first medium territory physical solution code element 1602, physical code unit, second medium territory 1603, the first transmitting elements 1604;

The first receiving element 1601 is used for receiving respectively the second data or the 3rd data or the 4th data that first terminal sends;

First medium territory physical solution code element 1602 is used for described the 3rd data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains described the second data; Perhaps, physical code unit, second medium territory 1603, the coding for described the 4th data being carried out second medium territory Physical Coding Sublayer obtains the 5th data;

Need to prove, in the medium converting apparatus, can comprise first medium territory physical solution code element 1602, also can comprise physical code unit, second medium territory 1603, in accompanying drawing 16, represent washability with empty arrow.

The first transmitting element 1604 is used for described the second data or described the 5th data are sent to the second terminal.

Further, as shown in figure 17, second medium territory Physical Coding Sublayer can be the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10GGPON.When described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G Ethernet passive optical network EPON, physical code unit, described second medium territory 1603 comprises: the first coding module 16031, the second coding modules 16032;

The first coding module 16031 is for the 8B/10B coding that carries out second medium territory Physical Coding Sublayer or 64B/66B coding;

The second coding module 16032 is for the FEC coding that carries out second medium territory Physical Coding Sublayer;

Further, physical code unit, described first medium territory 1602, also for the data behind the coding of the second coding that passes through second medium territory Physical Coding Sublayer that receives described first terminal transmission and described first medium territory Physical Coding Sublayer, and carry out the decoding of first medium territory Physical Coding Sublayer, and described the first coding module 16031, also be used for carrying out the first coding of second medium territory Physical Coding Sublayer, obtain described the second data; Perhaps,

Described the first coding module 16031 also is used for receiving the second coded data through second medium territory Physical Coding Sublayer that described first terminal sends, and carries out the first coding of second medium territory Physical Coding Sublayer, obtains described the second data.

Described equipment also is used for carrying out the processing of downlink data, and as shown in figure 17, this equipment also comprises: the second receiving element 1605, second medium territory physical solution code element 1606, physical code unit, first medium territory 1607, the second transmitting elements 1608;

The second receiving element 1605 is used for receiving respectively the 8th data or the 9th data that described the second terminal sends;

Second medium territory physical solution code element 1606 is used for described the 8th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 7th data; Perhaps, physical code unit, first medium territory 1607, the coding for described the 9th data being carried out first medium territory Physical Coding Sublayer obtains the tenth data; Need to prove, can only comprise second medium territory physical solution code element 1606 in this equipment, also can only comprise physical code unit, first medium territory 1607, in accompanying drawing 17, represent washability with empty arrow.

The second transmitting element 1608 is used for described the 7th data or the 9th data or described the tenth data are sent to described first terminal.

Further, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G Ethernet passive optical network EPON, described second medium territory physical solution code element 1606 comprised:

The first decoder module 16061 is used for carrying out 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer;

The second decoder module 16062 is for the fec decoder that carries out second medium territory Physical Coding Sublayer.

Need to prove, when the 8B/10B coding that at first carries out second medium territory Physical Coding Sublayer or 64B/66B coding, and then carry out FEC when coding of second medium territory Physical Coding Sublayer, in decoding, then at first carry out the fec decoder of second medium territory Physical Coding Sublayer, carry out again 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer; That is to say that the module of encoding is first decoded after needing.

Further, described the first decoder module 16061 also is used for described the 9th data are carried out the first decoding of second medium territory Physical Coding Sublayer; Physical code unit, described first medium territory 1607, the first decoded data that also is used for obtaining carries out the coding of first medium territory Physical Coding Sublayer, obtains the 11 data; Perhaps,

Described second medium territory physical solution code element 1606 also is used for described the 9th data are carried out the first decoding of second medium territory Physical Coding Sublayer, obtains described the first decoded data;

Described the second transmitting element 1608 also is used for described the 11 data or described the first decoded data are sent to described first terminal

The embodiment of the invention provides a kind of change of medium equipment, by the further processing of data that the first terminal that receives or the second terminal are sent, so that can simplify change of medium equipment.

The embodiment of the invention provides a kind of terminal, described terminal is first terminal, concrete, the network terminal that described first terminal can connect for CNU or for All other routes, present embodiment is described as an example of CNU example, as shown in figure 18, this device comprises the first receiving element 1801, physical code unit, second medium territory 1802, physical code unit, first medium territory 1803, the first transmitting elements 1804;

The first receiving element 1801 is used for receiving the first data that medium access control MAC processing layer sends;

Physical code unit, second medium territory 1802, the coding for described the first data being carried out second medium territory Physical Coding Sublayer obtains the second data;

Physical code unit, first medium territory 1803, the coding for described the second data being carried out first medium territory Physical Coding Sublayer obtains the 3rd data; Perhaps, physical code unit, described first medium territory, the coding for described the first data being carried out first medium territory Physical Coding Sublayer obtains the 4th data;

The first transmitting element 1804 is used for described the second data or described the 3rd data or described the 4th data are sent to described change of medium equipment.

Second medium territory Physical Coding Sublayer can be the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G EPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON.Further, as shown in figure 19, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, physical code unit, described second medium territory 1802 comprised: the first coding module 18021, the second coding modules 18022;

The first coding module 18021 is for the 8B/10B coding that described the first data that receive is carried out second medium territory Physical Coding Sublayer or 64B/66B coding; And second coding module 18022, be used for the data behind the first coding are carried out the FEC coding of second medium territory Physical Coding Sublayer;

Perhaps, described the second coding module 18022 is for the forward error correction mode FEC coding that described the first data that receive is carried out second medium territory Physical Coding Sublayer.

When down direction was processed data, described device can also comprise the second receiving element 1805, first medium territory physical solution code element 1806, second medium territory physical solution code element 1807, the second transmitting elements 1808;

The second receiving element 1805 is used for the 7th data or the 9th data or the tenth data that difference receiver media conversion equipment sends;

First medium territory physical solution code element 1806 is used for described the 7th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains described the 6th data; Perhaps, the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer obtains described the 9th data;

Second medium territory physical solution code element 1807 is used for described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data; Perhaps, described second medium territory physical solution code element 1807 also is used for directly described the 9th data that receive being carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data;

The second transmitting element 1808 is used for described the 6th data are sent to described MAC processing layer.

Further, described second medium territory physical solution code element 1807 comprises: the first decoder module 18071, the second decoder modules 18072;

Described the second decoder module 18072 is for the fec decoder that carries out second medium territory Physical Coding Sublayer;

Described the first decoder module 18071 is used for carrying out 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer.

Described second medium territory Physical Coding Sublayer comprises: the physical code PCS sublayer of 1G Ethernet passive optical network EPON or 10GEPON or 1G Gigabit Passive Optical Network GPON or 10G GPON.Second medium territory Physical Coding Sublayer can be coaxial cable COAX PCS sublayer.

Need to prove, when second medium territory Physical Coding Sublayer is the physical code PCS sublayer of 1G GPON or 10G GPON, can adopt FEC coding or the decoding of the GTC framing sublayer of GPON.

Optionally, described the second receiving element 1805 also is used for receiving the 11 data or the first decoded data that described change of medium equipment sends;

Described first medium territory physical solution code element 1806, also be used for described the 11 data are carried out the decoding of first medium territory Physical Coding Sublayer, and described second medium territory physical solution code element 1807, also be used for decoded data are carried out the second decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, described second medium territory physical solution code element 1807 also is used for described the first decoded data is carried out the second decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data.

The embodiment of the invention provides a kind of terminal, by in terminal, increasing second medium territory Physical Coding Sublayer processing module, so that the encoding and decoding of the encoding and decoding of second medium territory Physical Coding Sublayer and first medium territory Physical Coding Sublayer combine, perhaps only adopt the encoding and decoding of second medium territory Physical Coding Sublayer to finish end to end error code correction, so that can obtain correct data at receiving terminal.

The embodiment of the invention provides another kind of terminal, and described terminal can be for the second terminal, and concrete, described terminal can be OLT, also can be the terminal in GPON or other optical-fiber networks, and present embodiment is described as an example of OLT example.As shown in figure 20, this device comprises: the first receiving element 2001, second medium territory physical solution code element 2002, first medium territory physical solution code element 2003, the first transmitting elements 2004;

The first receiving element 2001 is used for the second data or the 5th data that the receiver media conversion equipment sends;

Second medium territory physical solution code element 2002 is used for described the second data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the first data; Perhaps, described the 5th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain decoded the 4th data;

First medium territory physical solution code element 2003 is used for described the 4th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains the first data that first terminal sends;

The first transmitting element 2004 is used for described the first data are sent to medium access control MAC processing layer.

Described second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10GEPON, or the GTC framing sublayer of 1G Gigabit Passive Optical Network GPON or 10G GPON.

As shown in figure 21 when described second medium territory Physical Coding Sublayer is the Physical Coding Sublayer of 1G EPON or 10GEPON, described second medium territory physical solution code element 2002 comprises: the first decoder module 20021, the second decoder modules 20022 further;

The first decoder module 20021 is used for carrying out 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer; The second decoder module 20022 is for the fec decoder that carries out second medium territory Physical Coding Sublayer.

Further, when down direction was processed data, described OLT also comprised: the second receiving element 2005, physical code unit, first medium territory 2006, physical code unit, second medium territory 2007, the second transmitting elements 2008;

The second receiving element 2005 also is used for receiving the 6th data that the MAC processing layer sends;

Physical code unit, first medium territory 2006 is used at down direction, and described the 6th data that receive are carried out the coding of first medium territory Physical Coding Sublayer, obtains the 7th data behind the coding;

Physical code unit, second medium territory 2007, the coding for described the 7th data being carried out second medium territory Physical Coding Sublayer obtains the 8th data; Perhaps the 6th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 9th data;

The second transmitting element 2008 also is used for, and described the 8th data or described the 9th data are sent to change of medium equipment.

Further, physical code unit, described second medium territory 2007 comprises the first coding module 20071, the second coding modules 20072;

The second coding module 20072 is for the FEC coding that carries out second medium territory Physical Coding Sublayer;

The first coding module 20071 is for the 8B/10B coding that carries out second medium territory Physical Coding Sublayer or 64B/66B coding;

Need to prove that when second medium territory Physical Coding Sublayer is the physical code PCS sublayer of 1G GPON or 10G GPON, can adopt FEC coding or the decoding of the GTC framing sublayer of GPON, the present invention is not limited.

The embodiment of the invention provides a kind of terminal, by in terminal, increasing first medium territory Physical Coding Sublayer processing module, so that the encoding and decoding of the encoding and decoding of second medium territory Physical Coding Sublayer and first medium territory Physical Coding Sublayer combine, perhaps only adopt the encoding and decoding of second medium territory Physical Coding Sublayer to finish end to end error code correction, so that can obtain correct data at receiving terminal.

The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.

Claims

1. a data handling system is characterized in that, comprising: first terminal, change of medium equipment and the second terminal;

Described first terminal is used for described the first data are carried out the coding of second medium territory Physical Coding Sublayer, obtains the second data, and described the second data are carried out the coding of first medium territory Physical Coding Sublayer, obtains the 3rd data; Perhaps, the first data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the 4th data; Described the 3rd data or described the 4th data are sent to described change of medium equipment;

Described change of medium equipment is used for receiving described the 3rd data, and described the 3rd data are carried out the decoding of first medium territory Physical Coding Sublayer, obtains described the second data; Perhaps, receive described the 4th data, described the 4th data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the 5th data; Described the second data or described the 5th data are sent to described the second terminal;

Described the second terminal is used for receiving described the second data, and described the second data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the first data; Perhaps, receive described the 5th data, described the 5th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 4th data, and described the 4th data that obtain are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the first data.

2. system according to claim 1 is characterized in that, described first terminal is coaxial network unit CNU, and described the second terminal is optical line terminal OLT, and described change of medium equipment is coaxial line terminal CLT;

Perhaps described first terminal is optical line terminal OLT, and described the second terminal is coaxial network unit CNU, and described change of medium equipment is coaxial line terminal CLT.

3. system according to claim 2, it is characterized in that, when described first terminal is coaxial network unit CNU, described the second terminal is optical line terminal OLT, when described change of medium equipment was coaxial line terminal CLT, the described coding that the first data that receive are carried out second medium territory Physical Coding Sublayer comprised:

The first data that receive are carried out the 8B/10B coding of second medium territory Physical Coding Sublayer; Perhaps the first data that receive are carried out second medium territory Physical Coding Sublayer 64B/66B coding and forward error correction mode FEC coding or the forward error correction mode FEC that the first data that receive are carried out second medium territory Physical Coding Sublayer is encoded;

When described first terminal is coaxial network unit CNU, described the second terminal is optical line terminal OLT, and when described change of medium equipment was coaxial line terminal CLT, the described coding that the second data that receive are carried out first medium territory Physical Coding Sublayer comprised:

The second data that receive are carried out the 8B/10B coding of first medium territory Physical Coding Sublayer; Perhaps the second data that receive are carried out first medium territory Physical Coding Sublayer 64B/66B coding and forward error correction mode FEC coding or the forward error correction mode FEC that the second data that receive are carried out first medium territory Physical Coding Sublayer is encoded.

4. system according to claim 2, it is characterized in that when described first terminal is coaxial network unit CNU, described the second terminal is optical line terminal OLT, described change of medium equipment be coaxial line terminal CLT constantly, the described decoding of carrying out second medium territory Physical Coding Sublayer comprises:

Carry out the forward error correction mode fec decoder of second medium territory Physical Coding Sublayer; Perhaps carry out forward error correction mode fec decoder and the 8B/10B decoding of second medium territory Physical Coding Sublayer; Perhaps carry out the 64B/66B decoding of second medium territory Physical Coding Sublayer;

When described first terminal is coaxial network unit CNU, described the second terminal is optical line terminal OLT, and when described change of medium equipment was coaxial line terminal CLT, the described decoding of carrying out first medium territory Physical Coding Sublayer comprised:

Carry out the forward error correction mode fec decoder of first medium territory Physical Coding Sublayer; Perhaps carry out forward error correction mode fec decoder and the 8B/10B decoding of first medium territory Physical Coding Sublayer; Perhaps carry out the 64B/66B decoding of first medium territory Physical Coding Sublayer.

5. a terminal is characterized in that, comprising:

The first receiving element is used for receiving the first data that medium access control MAC processing layer sends;

Physical code unit, second medium territory, the coding for described the first data being carried out second medium territory Physical Coding Sublayer obtains the second data;

Physical code unit, first medium territory, the coding for described the second data being carried out first medium territory Physical Coding Sublayer obtains the 3rd data;

The first transmitting element is used for described the 3rd data are sent to described change of medium equipment.

6. terminal according to claim 5 is characterized in that, described terminal also comprises:

The second receiving element is used for respectively the tenth data of receiver media conversion equipment transmission;

First medium territory physical solution code element obtains described the 9th data for the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer;

Second medium territory physical solution code element is used for described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data

The second transmitting element is used for described the 6th data are sent to described MAC processing layer.

7. such as claim 5 or 6 described terminals, it is characterized in that described terminal is coaxial network unit CNU or optical line terminal OLT.

8. according to claim 5 or 6 described terminals, it is characterized in that, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G Ethernet passive optical network EPON, described second medium territory Physical Coding Sublayer coding unit comprised:

The first coding module is for the 8B/10B coding that described the first data that receive is carried out second medium territory Physical Coding Sublayer or 64B/66B coding; And second coding module, be used for the data behind the first coding are carried out the forward error correction FEC coding of second medium territory Physical Coding Sublayer; Perhaps,

Described the second coding module is for the forward error correction mode FEC coding that described the first data that receive is carried out second medium territory Physical Coding Sublayer;

Described second medium territory physical solution code element comprises:

The second decoder module is for the fec decoder that carries out second medium territory Physical Coding Sublayer;

The first decoder module is used for carrying out 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer.

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

Receive the first data that medium access control MAC processing layer sends;

The first data are carried out the coding of second medium territory Physical Coding Sublayer, obtain the second data, described the second data are carried out the coding of first medium territory Physical Coding Sublayer, obtain the 3rd data;

Described the 3rd data are sent to change of medium equipment.

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

The 7th data or the 9th data or the tenth data that difference receiver media conversion equipment sends;

Described the 7th data are carried out the decoding of first medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, the decoding of described the tenth data being carried out first medium territory Physical Coding Sublayer obtains described the 9th data, and described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtains described the 6th data; Perhaps, described the 9th data are carried out the decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data;

Described the 6th data are sent to described MAC processing layer.

11. according to claim 9 or 10 described methods, it is characterized in that,

Described second medium territory Physical Coding Sublayer comprises: the Physical Coding Sublayer of 1G Ethernet passive optical network EPON or 10G Ethernet passive optical network EPON, or the Gigabit Passive Optical Network Transmission Convergence GTC framing sublayer of 1G gigabit passive optical network GPON or 10G gigabit passive optical network GPON.

12. method according to claim 11 is characterized in that, when described second medium territory Physical Coding Sublayer was the Physical Coding Sublayer of 1G EPON or 10G EPON, the described coding that carries out second medium territory Physical Coding Sublayer comprised:

Described the first data that receive are carried out 8B/10B coding or the 64B/66B coding of second medium territory Physical Coding Sublayer, and the data behind the first coding are carried out the forward error correction mode FEC coding of second medium territory Physical Coding Sublayer; Perhaps, described the first data that receive are carried out the FEC coding of second medium territory Physical Coding Sublayer;

Carry out fec decoder and 8B/10B decoding or the 64B/66B decoding of second medium territory Physical Coding Sublayer.

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

Receive the 11 data or the first decoded data that described change of medium equipment sends;

Described the 11 data are carried out the decoding of first medium territory Physical Coding Sublayer, decoded data are carried out the second decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data; Perhaps, described the first decoded data is carried out the second decoding of second medium territory Physical Coding Sublayer, obtain described the 6th data.