CN101567842A - Method, device and system for transmitting and receiving service data - Google Patents

Method, device and system for transmitting and receiving service data Download PDF

Info

Publication number
CN101567842A
CN101567842A CNA2008100950263A CN200810095026A CN101567842A CN 101567842 A CN101567842 A CN 101567842A CN A2008100950263 A CNA2008100950263 A CN A2008100950263A CN 200810095026 A CN200810095026 A CN 200810095026A CN 101567842 A CN101567842 A CN 101567842A
Authority
CN
China
Prior art keywords
gem frame
business datum
frame head
internal layer
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2008100950263A
Other languages
Chinese (zh)
Other versions
CN101567842B (en
Inventor
郑若滨
弗兰克·埃芬博格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN2008100950263A priority Critical patent/CN101567842B/en
Priority to PCT/CN2009/071247 priority patent/WO2009129721A1/en
Publication of CN101567842A publication Critical patent/CN101567842A/en
Application granted granted Critical
Publication of CN101567842B publication Critical patent/CN101567842B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0064—Arbitration, scheduling or medium access control aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention discloses a method, a device and a system for transmitting and receiving service data. A transmitting terminal encapsulates service data to be transmitted into GEM frames in a passive optical network encapsulating mode and transmit the encapsulated GEM frames to optical fibers for transmission, wherein the GEM frames comprise service type identifiers which indicate the types of service data; accordingly, a receiving terminal receives the GEM frames and decapsulates the GEM frames to obtain the service data and the service type identifiers of the service data; and the receiving terminal identifies the service types of the service data according to the service type identifiers and carries out service processing corresponding to the service types. The method for encapsulating the service data comprises the steps: allocating the service data to be transmitted into a payload field; adding an internal field carrying port identifiers on the basis of the payload field; and adding external GEM frame headers carrying port identifiers on the basis of the internal field, thus the port identifiers carried by the external GEM frame headers and the port identifiers carried by the internal field together identify the port information of the service data.

Description

A kind of sending, receiving method of business datum, device and system
Technical field
The present invention relates to the EPON field, particularly a kind of business datum sending, receiving method, device and system.
Background technology
Along with the sustained and rapid development of internet and popularizing of PC, various value-added multimedias and IP operation are increased sharply, and already present access technology can't satisfy huge bandwidth demand, becomes " bottleneck " of whole network development.The enormous bandwidth resource that the backbone network fiberize brings is ordered about people's consideration Access Network is realized fiberize, broadband, and then has formed GPON (Gigabit Passive Optical Network, gigabit passive optical network) gradually.
GPON protocol hierarchy model structure comprises GPM (GPON Physical Media DependentLayer, gigabit passive optical network physical medium relevant layers) and GTC (GPON TransmissionConvergence Layer, gigabit passive optical network transmission convergence layer).
The GTC layer of GPON can provide the encapsulation mode of two kinds of business datums, i.e. ATM encapsulation mode and GEM encapsulation mode.Wherein, the ATM encapsulation mode is business datum to be encapsulated in the ATM cell of 53 bytes transmit, and the ATM encapsulation mode is the fixed length encapsulation mode; The GEM encapsulation mode is that business datum is encapsulated in the GEM frame.
See also Fig. 1, the schematic diagram that it sends business datum for GPON system in the prior art.The port of A system can only be supported the encapsulation to the TDM message, the B system port can only be supported the encapsulation to the SDH message, for A, B system, the GEM encapsulation mode of their each ports all is pre-configured, when system is fixed, packaged business datum is also fixing thereupon, and this encapsulation mode is a kind of encapsulation mode of static state.Corresponding, receiving terminal also is a static configuration to the decapsulation pattern of GEM frame.
This shows that the transmission method of existing this business datum can only be supported the transmission of the business datum of fixed type, can not satisfy the user, make the user should use underaction multiple services demand.In addition, the GEM port address space of GPON support at present is 4K, increase day by day along with number of users and communication service kind, especially when adopting IP to be carried on the technology of GEM, the requirement to the become more meticulous classification and the control of user and communication service far can not be satisfied in the GEM port address space of 4K, and GEM port address space how to expand GPON becomes a technical barrier.
Summary of the invention
The embodiment of the invention provides a kind of sending, receiving method, device and system of business datum, can dynamically support transmission, reception or the transmission of multiple business data.
The embodiment of the invention also provides a kind of method for packing and device of business datum, and port number that can expanding unit can better be supported the transmission of multiple business data.
The embodiment of the invention discloses a kind of sending method of business datum, comprising: business datum to be sent is packaged into EPON encapsulation mode GEM frame, comprises the type of service sign of indicating described traffic data type in the described GEM frame; GEM frame after the described encapsulation sent on the optical fiber transmit.
The embodiment of the invention discloses a kind of method of reseptance of business datum, comprising: receive the GEM frame; Decapsulation obtains the type of service sign of business datum and described business datum to described GEM frame; Identify the type of service of described business datum according to described type of service, described business datum is carried out and described type of service corresponding service is handled.
The embodiment of the invention discloses a kind of transmission method of business datum, comprising: transmitting terminal is packaged into the GEM frame with business datum to be sent, comprises the type of service sign of indicating described traffic data type in the described GEM frame; GEM frame after the described encapsulation sent on the optical fiber transmit; Receiving terminal receives described GEM frame; Decapsulation obtains described business datum and described type of service sign to described GEM frame; Identify the type of service of described business datum according to described type of service, described business datum is carried out and described type of service corresponding service is handled.
The embodiment of the invention discloses a kind of dispensing device of business datum, comprising: encapsulation unit, be used for business datum to be sent is packaged into the GEM frame, wherein, comprise the type of service sign of indicating described traffic data type in the described GEM frame; Transmitting element is used for the GEM frame after the encapsulation of described encapsulation unit sent on the optical fiber and transmits.
The embodiment of the invention discloses a kind of receiving system of business datum, comprising: receiving element is used to receive the GEM frame; Decapsulation unit is used for GEM frame decapsulation that described receiving element is received, obtains the type of service sign of business datum and described business datum; First Service Processing Unit is used for identifying according to described type of service the type of service of described business datum, and described business datum is carried out and described type of service corresponding service is handled.
The embodiment of the invention discloses a kind of transmission system of business datum, comprise dispensing device and receiving system.
The embodiment of the invention also discloses a kind of method for packing of business datum, comprising: business datum to be sent is put into payload field; On described payload field basis, add the internal layer territory of carrying port-mark; On basis, described internal layer territory, add the outer GEM frame head that carries port-mark, the port information of the described business datum of the common sign of the port-mark that carry in port-mark that described outer GEM frame head carries and described internal layer territory.
The embodiment of the invention also discloses a kind of packaging system of business datum, comprising: the payload field load bearing unit is used for described business datum to be sent is put into payload field; Internal layer territory adding device is used for adding the internal layer territory of carrying port-mark on described payload field basis; Outer GEM frame head adding device is used for adding the outer GEM frame head that carries port-mark on basis, described internal layer territory, the port information of the described business datum of the common sign of the port-mark that carry in port-mark that described outer GEM frame head carries and described internal layer territory.
From an embodiment of the invention described above as can be seen, transmitting terminal carries out the GEM encapsulation to business datum when, for business datum is added the type of service sign, thereby distinguish dissimilar business datums, and then can dynamically support the transmission of multiple business data; Accordingly, receiving terminal is when decapsulation GEM frame, the type of service that the traffic data type that takes on according to deblocking identifies, can carry out handling to business datum with this type of service corresponding service, and then can support reception to the multiple business data, satisfy the user to multiple services demand, helped improving the practical application of GPON.
From the another one embodiment of the invention described above as can be seen, owing in the GEM frame, added the internal layer territory of carrying port-mark, and then the port information by the common identification service data of port-mark in port-mark in the described internal layer territory and the outer GEM frame head of this GEM frame, therefore only compare in the prior art relatively by outer GEM frame head sign business datum port information, obviously expanded and installed available port number, can better support the transmission of multiple business data, solve the GEM port address space problem of shortage that GPON supports in the prior art.
Description of drawings
The schematic diagram that Fig. 1 sends business datum for GPON system in the prior art;
Fig. 2 is the structure chart of GEM frame first embodiment of the present invention;
Fig. 3 is the flow chart of first embodiment of a kind of business datum sending method of the present invention;
Fig. 4 is the structure chart of first embodiment of a kind of business datum dispensing device of the present invention;
Fig. 5 is the flow chart of first embodiment of a kind of business datum method of reseptance of the present invention;
Fig. 6 is the structure chart of first embodiment of a kind of business datum receiving system of the present invention;
Fig. 7 is the structure chart of GEM frame second embodiment of the present invention;
Fig. 8 is the structure chart of GEM frame the 3rd embodiment of the present invention;
Fig. 9 is the flow chart of the 3rd embodiment of a kind of business datum sending method of the present invention;
Figure 10 is the structure chart of the 3rd embodiment of a kind of business datum dispensing device of the present invention;
Figure 11 is the flow chart of the 3rd embodiment of a kind of business datum method of reseptance of the present invention;
Figure 12 is the structure chart of the 3rd embodiment of a kind of business datum receiving system of the present invention;
Figure 13 is the structure chart of GEM frame the 4th embodiment of the present invention;
Figure 14 is the structure chart of first embodiment of a kind of business datum packaging system of the present invention;
Figure 15 is the structure chart of GEM frame the 5th embodiment of the present invention;
Figure 16 is the structure chart of second embodiment of a kind of business datum packaging system of the present invention;
Figure 17 is the structure chart of GEM frame the 6th embodiment of the present invention;
Figure 18 is the structure chart of the 3rd embodiment of a kind of business datum packaging system of the present invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
See also Fig. 2, it is the structure chart of GEM frame first embodiment of the present invention, comprises outer GEM frame head, extension field and payload field, and the type of service of carrying the indicating services data type in the extension field identifies.
At above-mentioned frame structure, in transmission first embodiment of the present invention, provide a kind of sending method of business datum, see also Fig. 3, may further comprise the steps:
Step 301: business datum to be sent is put into payload field, on the payload field basis, add extension field, in extension field, carry the type of service sign of indicating services data type, on the payload field basis, add outer GEM frame head, finish the GEM encapsulation;
For example, after receiving business datum, its segmentation is formed the GEM data block, then the GEM data block is put into the payload field of GEM frame structure from GEM Client.Then, in the outer extension field of adding of the payload field that carries business datum, in this extension field, carry the type of service sign of indicating services data type.After this, also to add the GEM frame head for the payload field that carries business datum, generally speaking, can be at the outer GEM frame head that adds of extension field.Through after the above-mentioned processing, just finished GEM encapsulation to business datum.
Wherein, outer GEM frame head comprises PLI (PDU Length Indicator, the payload length indication), Port ID (Port Identification, port-mark), PTI (PDU Type Indicator, payload type is indicated) and four parts of HEC (Header Error Control, the wrong control of head).
Step 302: the GEM frame after will encapsulating sends on the optical fiber and transmits.
Corresponding with the above-mentioned method that provides, a kind of first embodiment of business datum dispensing device also is provided, referring to Fig. 4, dispensing device in the present embodiment comprises encapsulation unit 401 and transmitting element 402, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Encapsulation unit 401 is used for business datum to be sent is packaged into the GEM frame, and wherein, this GEM frame comprises outer GEM frame head, extension field and payload field, and the type of service of carrying the indicating services data type in the extension field identifies;
Transmitting element 402 will send to optical fiber from the GEM frame after the encapsulation unit encapsulation and transmit;
Wherein, encapsulation unit comprises:
Payload field load bearing unit 403 is used for business datum to be sent is put into payload field;
Extension field adding device 404 is used for adding extension field on the basis of payload field, carries the type of service sign of indicating services data type in extension field;
Frame head adding device 405 is used for adding outer GEM frame head on the basis of payload field.
In reception first embodiment of the present invention, realize the method that a kind of business datum receives, see also Fig. 5, may further comprise the steps:
Step 501: receive the GEM frame, this GEM frame comprises outer GEM frame head, extension field and payload field, and the type of service of carrying the indicating services data type in the extension field identifies;
Step 502: read outer GEM frame head, judge whether the PTI territory in this GEM frame head indicates the GEM frame to carry extension field, if, enter step 503, if not, enter 504;
Step 503: read the extension field of GEM frame, obtain the type of service sign of business datum, enter step 505;
Step 504: business datum is carried out and the traffic data type corresponding service processing of static configuration in advance, process ends;
Step 505: identify the type of service of business datum according to type of service, read the payload field of GEM frame, obtain business datum, business datum is carried out and the type of service corresponding service is handled process ends.
Corresponding with the above-mentioned method that provides, a kind of first embodiment of business datum receiving system also is provided, referring to Fig. 6, receiving system in the present embodiment comprises receiving element 601, decapsulation unit 602, first Service Processing Unit 603 and second Service Processing Unit 604, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Receiving element 601 is used to receive the GEM frame, and this GEM frame comprises outer GEM frame head, extension field and payload field, and the type of service of carrying the indicating services data type in the extension field identifies;
Decapsulation unit 602 is used for the GEM frame decapsulation with the receiving element reception, obtains the type of business datum and business datum;
First Service Processing Unit 603 is used for identifying according to type of service the type of service of business datum, and business datum is carried out handling with the type of service corresponding service;
Second Service Processing Unit 604 is used for business datum is carried out and the traffic data type corresponding service processing of static configuration in advance.
Wherein, decapsulation unit comprises:
Frame head reading unit 605 is used to read outer GEM frame head;
Identifying unit 606, whether the PTI territory of the outer GEM frame head that is used to judge that the frame head reading unit reads indicates the GEM frame to carry extension field; If then notify the extension field reading unit; If not, then notify second Service Processing Unit;
Wherein, when the GEM frame of receiving system reception all carries extension field, do not get rid of the PTI territory of not using identifying unit to judge the outer GEM frame head that the frame head reading unit reads and whether indicate the GEM frame to carry extension field.
Extension field reading unit 607 is used to read the extension field of GEM frame, obtains the type of service sign of business datum;
Payload field reading unit 608 is used to read the payload field of GEM frame, obtains business datum.
In transmission first embodiment of the present invention, realize a kind of transmission method of business datum, comprise aforesaid sending method and method of reseptance, because of the front is described in detail it, so do not give unnecessary details.
Corresponding with the above-mentioned method that provides, the present invention also provides first embodiment of a kind of business data transmission system, comprises aforesaid dispensing device and receiving system, because of the front is described in detail it, here so do not give unnecessary details.
See also Fig. 7, be the GEM frame second example structure figure of the present invention, comprise outer GEM frame head, extension field and payload field, carry the type of service sign and Ex-portID (the Expanded Port Identification of indicating services data type in the extension field, the Extended Capabilities Port sign), Ex-port ID is used to expand the port of GPON system.
At above-mentioned frame structure, the invention provides second embodiment of sending method, device.The present embodiment and the first embodiment difference are, also carry Ex-port ID in the extension field of GEM frame except carrying the type of service sign.
Equally, at above-mentioned frame structure, the invention provides second embodiment of method of reseptance, device.The present embodiment and the first embodiment difference are, also carry Ex-port ID in the extension field of GEM frame except carrying the type of service sign.
In transmission second embodiment of the present invention, realize a kind of transmission method of business datum, comprise aforesaid sending method and method of reseptance, because of the front is described in detail it, so do not give unnecessary details.
Corresponding with the above-mentioned method that provides, the present invention also provides second embodiment of a kind of business data transmission system, comprises aforesaid dispensing device and receiving system, because of the front is described in detail it, here so do not give unnecessary details.
See also Fig. 8, be GEM frame the 3rd example structure figure of the present invention, comprise outer GEM frame head, internal layer GEM frame head, extension field and payload field, carry the type of service sign and the Ex-port ID of indicating services data type in the extension field, outer GEM frame head and internal layer GEM frame head all carry the Port ID that is used to expand the GPON system port.
At above-mentioned frame structure, in transmission the 3rd embodiment of the present invention, provide a kind of sending method of business datum, see also Fig. 9, may further comprise the steps:
Step 901: business datum to be sent is put into payload field, on the payload field basis, add extension field, in this extension field, carry the type of service sign and the Ex-port ID of indicating services data type, Ex-port ID is used to expand the port of GPON system, on the payload field basis, add outer GEM frame head and internal layer GEM frame head, finish the GEM encapsulation;
Wherein, outer GEM frame head and internal layer GEM frame head structure are identical with frame head structure in sending first embodiment.
Step 902: the GEM frame after will encapsulating sends on the optical fiber and transmits.
Corresponding with the above-mentioned method that provides, a kind of business datum dispensing device the 3rd embodiment also is provided, referring to Figure 10, dispensing device in the present embodiment comprises encapsulation unit 1001 and transmitting element 1002, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Encapsulation unit 1001, be used for business datum to be sent is packaged into the GEM frame, wherein, this GEM frame comprises outer GEM frame head, internal layer GEM frame head, extension field and payload field, carries the type of service sign and the Ex-port ID of indicating services data type in the extension field;
Transmitting element 1002 will send to optical fiber from the GEM frame after the encapsulation unit encapsulation and transmit;
Wherein, encapsulation unit comprises:
Payload field load bearing unit 1003 is used for business datum to be sent is put into payload field;
Extension field adding device 1004 is used for adding extension field on the basis of payload field, carries the type of service sign of indicating services data type and the Ex-port ID of Extended Capabilities Port in extension field;
Frame head adding device 1005 is used for adding the GEM frame head on the basis of payload field.
Wherein, the frame head adding device comprises:
Outer GEM frame head adding device 1006 is used for adding outer GEM frame head on the basis of described payload field.
Internal layer GEM frame head adding device 1007 is used for adding internal layer GEM frame head on the basis of described payload field.
In reception the 3rd embodiment of the present invention, realize a kind of method of reseptance of business datum, see also Figure 11, may further comprise the steps:
Step 1101: receive the GEM frame, this GEM frame comprises outer GEM frame head, and internal layer GEM frame head, extension field and payload field are carried the type of service sign and the Ex-port ID of indicating services data type in the extension field;
Step 1102: read outer GEM frame head, judge whether the PTI territory in the outer GEM frame head indicates the GEM frame to carry internal layer GEM frame head, if, enter step 1103, if not, enter step 1105;
Step 1103: read internal layer GEM frame head, judge whether the PTI territory in the internal layer GEM frame head indicates the GEM frame to carry extension field, if, enter step 1104, if not, enter step 1105;
Step 1104: read the extension field of GEM frame, obtain the type of service sign of business datum, enter step 1106;
Step 1105: business datum is carried out and the traffic data type corresponding service processing of static configuration in advance, process ends.
Step 1106: identify the type of service of business datum according to type of service, read the payload field of GEM frame, obtain business datum, business datum is carried out and the type of service corresponding service is handled process ends.
Corresponding with the above-mentioned method that provides, a kind of the 3rd embodiment of business datum receiving system also is provided, see also Figure 12, receiving system in the present embodiment comprises receiving element 1201, decapsulation unit 1202, first Service Processing Unit 1203 and second Service Processing Unit 1204, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Receiving element 1201 is used to receive the GEM frame, and this GEM frame comprises outer GEM frame head, and internal layer GEM frame head, extension field and payload field are carried the type of service sign and the Ex-port ID of indicating services data type in the extension field;
Decapsulation unit 1202 is used for GEM frame decapsulation that receiving element is received, obtains the type of service sign of business datum and business datum;
First Service Processing Unit 1203 is used for identifying according to type of service the type of service of business datum, and business datum is carried out handling with the type of service corresponding service.
Second Service Processing Unit 1204 is used for business datum is carried out and the traffic data type corresponding service processing of static configuration in advance.
Wherein, decapsulation unit comprises:
Outer GEM frame head reading unit 1205 is used to read outer GEM frame head;
Internal layer GEM frame head reading unit 1206 is used to read internal layer GEM frame head;
Extension field reading unit 1207 is used to read the extension field of GEM frame, obtains the type of service sign of business datum;
Payload field reading unit 1208 is used to read the payload field of GEM frame, obtains business datum.
Outer GEM frame head identifying unit 1209, whether the PTI territory of the outer GEM frame head that is used to judge that outer GEM frame head reading unit reads indicates the GEM frame to carry internal layer GEM frame head; If then notify internal layer GEM frame head identifying unit; If not, then notify second Service Processing Unit;
Wherein, when the GEM frame of receiving system reception all carries internal layer GEM frame head, do not get rid of the PTI territory of not using outer GEM frame head identifying unit to judge the outer GEM frame head that outer GEM frame head reading unit reads and whether indicate the GEM frame to carry internal layer GEM frame head.
Internal layer GEM frame head identifying unit 1210, whether the PTI territory of the described internal layer GEM frame head that is used to judge that internal layer GEM frame head reading unit reads indicates the GEM frame to carry internal layer GEM frame head; If then notify the extension field reading unit; If not, then notify second Service Processing Unit;
Wherein, when the GEM frame of receiving system reception all carries extension field, do not get rid of the PTI territory of not using internal layer GEM frame head identifying unit to judge the internal layer GEM frame head that internal layer GEM frame head reading unit reads and whether indicate the GEM frame to carry extension field.
In transmission the 3rd embodiment of the present invention, realize a kind of method of business data transmission, comprise aforesaid sending method and method of reseptance, because of the front is described in detail it, so do not give unnecessary details.
Corresponding with the above-mentioned method that provides, the 3rd embodiment of a kind of business data transmission system also is provided, comprise aforesaid dispensing device and receiving system, because of the front is described in detail it, here so do not give unnecessary details.
In the above-described embodiments, if the port number of GPON system satisfies actual needs, the extension field in the present embodiment can not comprise Ex-port ID.
See also Figure 13, be the structure chart of GEM frame the 4th embodiment of the present invention, this GEM frame comprises outer GEM frame head, internal layer GEM frame head and payload field, and internal layer GEM frame head and outer GEM frame head all carry Port ID, identify the port information of described business datum jointly.
At above-mentioned frame structure, in encapsulation first embodiment of the present invention, provide a kind of method for packing of business datum, may further comprise the steps:
Step 1 is put into payload field with business datum to be sent;
Step 2 is added internal layer GEM frame head on the payload field basis, this internal layer GEM frame head carries PortID;
Step 3 is added outer GEM frame head on internal layer GEM frame head basis, this skin GEM frame head carries Port ID, and the PTI territory indication GEM frame in the outer GEM frame head carries internal layer GEM frame head.
Corresponding with the above-mentioned method that provides, a kind of first embodiment of business datum packaging system also is provided, see also Figure 14, packaging system in the present embodiment comprises payload field load bearing unit 1401, internal layer GEM frame head adding device 1402 and outer GEM frame head adding device 1403, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Payload field load bearing unit 1401 is used for described business datum to be sent is put into payload field;
Internal layer GEM frame head adding device 1402 is used for adding internal layer GEM frame head on the payload field basis;
Outer GEM frame head adding device 1403 is used for adding outer GEM frame head on internal layer GEM frame head basis, the PTI territory indication GEM frame in the outer GEM frame head carries internal layer GEM frame head.
See also Figure 15, be the structure chart of GEM frame the 5th embodiment of the present invention, this GEM frame comprises outer GEM frame head, internal layer extension field and payload field, wherein, the port information of entrained Ex-port ID of internal layer extension field and the outer GEM frame head common identification service data of Port ID of carrying.
At above-mentioned frame structure, in encapsulation second embodiment of the present invention, provide a kind of method for packing of business datum, may further comprise the steps:
Step 1 is put into payload field with business datum to be sent;
Step 2 is added the internal layer extension field on the payload field basis, this internal layer extension field is carried Ex-port ID;
Step 3 is added outer GEM frame head on internal layer extension field basis, this skin GEM frame head carries Port ID, and the PTI territory indication GEM frame in the outer GEM frame head carries the internal layer extension field.
Corresponding with the above-mentioned method that provides, a kind of second embodiment of business datum packaging system also is provided, see also Figure 16, packaging system in the present embodiment comprises payload field load bearing unit 1601, internal layer extension field adding device 1602 and outer GEM frame head adding device 1603, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Payload field load bearing unit 1601 is used for business datum to be sent is put into payload field;
Internal layer extension field adding device 1602 is used for adding the internal layer extension field on the payload field basis;
Outer GEM frame head adding device 1603 is used for adding outer GEM frame head on internal layer extension field basis, the PTI territory indication GEM frame in the outer GEM frame head carries the internal layer extension field.
See also Figure 17, be GEM frame the 6th example structure figure of the present invention, this GEM frame comprises outer GEM frame head, internal layer GEM frame head, internal layer extension field and payload field, the Port ID that Ex-portID that the internal layer extension field is carried and internal layer GEM frame head and outer GEM frame head carry, the port information of common identification service data.
At above-mentioned frame structure, in encapsulation the 3rd embodiment of the present invention, provide a kind of method for packing of business datum, may further comprise the steps:
Step 1 is put into payload field with business datum to be sent;
Step 2 is added the internal layer extension field on the payload field basis, this internal layer extension field is carried Ex-port ID;
Step 3 is added internal layer GEM frame head on internal layer extension field basis, this internal layer GEM frame head carries Port ID, and the PTI territory indication GEM frame in the internal layer GEM frame head carries the internal layer extension field;
Step 4 is added outer GEM frame head on internal layer GEM frame head basis, this skin GEM frame head carries Port ID, and the PTI territory indication GEM frame in the outer GEM frame head carries internal layer GEM frame head.
Corresponding with the above-mentioned method that provides, a kind of the 3rd embodiment of business datum packaging system also is provided, see also Figure 18, packaging system in the present embodiment comprises payload field load bearing unit 1801, internal layer extension field adding device 1802, internal layer GEM frame head adding device 1803 and outer GEM frame head adding device 1804, further introduces its internal structure and annexation below in conjunction with the operation principle of this device.
Payload field load bearing unit 1801 is used for business datum to be sent is put into payload field;
Internal layer extension field adding device 1802 is used for adding the internal layer extension field on the payload field basis;
Internal layer GEM frame head adding device 1803 is used for adding internal layer GEM frame head on internal layer extension field basis.
Outer GEM frame head adding device 1804 is used for adding outer GEM frame head on internal layer GEM frame head basis.
In each embodiment of the present invention, utilize PTI territory indication GEM frame to carry extension field or/and internal layer GEM frame head can adopt the mode of coding to realize, concrete execution mode is shown in table 1,2.
Table 1 coding execution mode
The PTI bit Function
PTI the 1st bit Internal layer GEM frame head is carried in indication
PTI the 2nd bit GEM frame extension field is carried in indication
PTI the 3rd bit Same prior art, last segmentation when whether indication GEM frame is segment processing
The another kind of coding of table 2 execution mode
The PTI coding Function
000-101 Same prior art, last segmentation when whether indication GEM frame is segment processing or do not have congested
110 GEM frame extension field is carried in indication
111 Internal layer GEM frame head is carried in indication
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (20)

1, a kind of sending method of business datum is characterized in that, comprising:
Business datum to be sent is packaged into EPON encapsulation mode GEM frame, comprises the type of service sign of indicating described traffic data type in the described GEM frame;
GEM frame after the described encapsulation sent on the optical fiber transmit.
2, method according to claim 1 is characterized in that, describedly business datum to be sent is packaged into the GEM frame comprises:
Described business datum to be sent is put into payload field;
On described payload field basis, add extension field, in described extension field, carry the type of service sign of indicating services data type;
On described payload field basis, add the GEM frame head.
3, method according to claim 2 is characterized in that, described GEM frame head comprises payload type indication PTI territory, indicates described GEM frame to carry described extension field by described PTI territory.
4, method according to claim 2 is characterized in that, the described GEM frame head that adds on the payload field basis comprises:
Add outer GEM frame head and internal layer GEM frame head on described payload field basis, described outer GEM frame head and described internal layer GEM frame head all comprise port-mark.
5, method according to claim 2 is characterized in that, also comprises:
In described extension field, carry the Extended Capabilities Port sign.
6, a kind of method of reseptance of business datum is characterized in that, comprising:
Receive the GEM frame;
Decapsulation obtains the type of service sign of business datum and described business datum to described GEM frame;
Identify the type of service of described business datum according to described type of service, described business datum is carried out and described type of service corresponding service is handled.
7, method according to claim 6 is characterized in that, described GEM frame comprises GEM frame head, extension field and payload field, and the type of service sign that decapsulation obtains business datum and described business datum to described GEM frame comprises:
Read described GEM frame head;
Read the extension field of described GEM frame, obtain the type of service sign of described business datum;
Read the payload field of described GEM frame, obtain described business datum.
8, method according to claim 7 is characterized in that, also comprises:
Judge whether the PTI territory in the described GEM frame head indicates described GEM frame to carry extension field;
If, then carry out the extension field step of the described GEM of reading frame, if not, then described business datum is carried out handling with the traffic data type corresponding service of static configuration in advance.
9, a kind of dispensing device of business datum is characterized in that, comprising:
Encapsulation unit is used for business datum to be sent is packaged into the GEM frame, wherein, comprises the type of service sign of indicating described traffic data type in the described GEM frame;
Transmitting element is used for the GEM frame after the encapsulation of described encapsulation unit sent on the optical fiber and transmits.
10, device according to claim 9 is characterized in that, described encapsulation unit comprises:
The payload field load bearing unit is used for described business datum to be sent is put into payload field;
The extension field adding device is used for adding extension field on the basis of described payload field, carries the type of service sign of indicating services data type in described extension field;
The frame head adding device is used for adding the GEM frame head on the basis of described payload field.
11, according to claim 9 or 10 described devices, it is characterized in that described frame head adding device is used for adding the GEM frame head on the basis of described payload field, described GEM frame head comprises payload type indication PTI territory, indicates described GEM frame to carry described extension field by described PTI territory.
12, a kind of receiving system of business datum is characterized in that, comprising:
Receiving element is used to receive the GEM frame;
Decapsulation unit is used for GEM frame decapsulation that described receiving element is received, obtains the type of service sign of business datum and described business datum;
First Service Processing Unit is used for identifying according to described type of service the type of service of described business datum, and described business datum is carried out and described type of service corresponding service is handled.
13, device according to claim 12 is characterized in that, the GEM frame that described receiving element receives comprises GEM frame head, extension field and payload field, and described decapsulation unit comprises:
The frame head reading unit is used to read described GEM frame head;
The extension field reading unit is used to read the extension field of described GEM frame, obtains the type of service sign of described business datum;
The payload field reading unit is used to read the payload field of described GEM frame, obtains described business datum.
14, device according to claim 13 is characterized in that, also comprises:
Identifying unit, whether the PTI territory of the described GEM frame head that is used to judge that described frame head reading unit reads indicates described GEM frame to carry extension field; If then notify described extension field reading unit; If not, then notify second Service Processing Unit;
Described second Service Processing Unit is used for described business datum is carried out and the traffic data type corresponding service processing of static configuration in advance.
15, a kind of transmission system of business datum is characterized in that, comprises in the claim 9 to 11 any described receiving system in any described dispensing device and claim 12 to 14.
16, a kind of method for packing of business datum is characterized in that, comprising:
Business datum to be sent is put into payload field;
On described payload field basis, add the internal layer territory of carrying port-mark;
On basis, described internal layer territory, add the outer GEM frame head that carries port-mark, the port information of the described business datum of the common sign of the port-mark that carry in port-mark that described outer GEM frame head carries and described internal layer territory.
17, method according to claim 16 is characterized in that, the described internal layer territory of carrying port-mark of adding on the payload field basis comprises:
On described payload field basis, add the internal layer GEM frame head that carries port-mark;
And/or,
On described payload field basis, add the internal layer expansion of carrying the Extended Capabilities Port sign.
18, method according to claim 17 is characterized in that,
Describedly comprise adding the internal layer territory carry port-mark on the payload field basis: add the internal layer GEM frame head that carries port-mark on described payload field basis, the PTI territory in the described outer GEM frame head indicates described GEM frame to carry described internal layer GEM frame head;
Perhaps,
Describedly comprise adding the internal layer territory carry port-mark on the payload field basis: add the internal layer expansion of carrying the Extended Capabilities Port sign on described payload field basis, the PTI territory in the described outer GEM frame head indicates described GEM frame to carry described internal layer expansion;
Perhaps,
Describedly comprise adding the internal layer GEM frame head carry port-mark on the payload field basis: on described payload field basis, add the internal layer GEM frame head and the internal layer expansion of carrying port-mark, PTI territory in the described outer GEM frame head indicates described GEM frame to carry described internal layer GEM frame head, and the PTI territory in the described internal layer GEM frame head indicates described GEM frame to carry described internal layer expansion.
19, a kind of packaging system of business datum is characterized in that, comprising:
The payload field load bearing unit is used for described business datum to be sent is put into payload field;
Internal layer territory adding device is used for adding the internal layer territory of carrying port-mark on described payload field basis;
Outer GEM frame head adding device is used for adding the outer GEM frame head that carries port-mark on basis, described internal layer territory, the port information of the described business datum of the common sign of the port-mark that carry in port-mark that described outer GEM frame head carries and described internal layer territory.
20, device according to claim 19 is characterized in that, internal layer territory adding device comprises:
Internal layer GEM frame head adding device is used for adding the internal layer GEM frame head that carries port-mark on described payload field basis;
And/or,
Internal layer expansion adding device is used for adding the internal layer expansion of carrying the Extended Capabilities Port sign on described payload field basis.
CN2008100950263A 2008-04-23 2008-04-23 Method, device and system for transmitting and receiving service data Expired - Fee Related CN101567842B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008100950263A CN101567842B (en) 2008-04-23 2008-04-23 Method, device and system for transmitting and receiving service data
PCT/CN2009/071247 WO2009129721A1 (en) 2008-04-23 2009-04-13 A method, apparatus and system for transmitting and receiving service data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100950263A CN101567842B (en) 2008-04-23 2008-04-23 Method, device and system for transmitting and receiving service data

Publications (2)

Publication Number Publication Date
CN101567842A true CN101567842A (en) 2009-10-28
CN101567842B CN101567842B (en) 2012-07-04

Family

ID=41216426

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100950263A Expired - Fee Related CN101567842B (en) 2008-04-23 2008-04-23 Method, device and system for transmitting and receiving service data

Country Status (2)

Country Link
CN (1) CN101567842B (en)
WO (1) WO2009129721A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101924648A (en) * 2010-07-22 2010-12-22 中兴通讯股份有限公司 Adaptive method and adaptive device of service veneer
WO2010148708A1 (en) * 2009-11-10 2010-12-29 中兴通讯股份有限公司 Method and device for implementing the recombination for ethernet packets in a gigabit passive optical network (gpon) system
WO2010148887A1 (en) * 2009-11-12 2010-12-29 中兴通讯股份有限公司 Method for data transmission and system for gigabit passive optical network
CN102255771A (en) * 2011-06-12 2011-11-23 中山爱科数字科技有限公司 Device for identifying interregional integrated service
CN102497265A (en) * 2011-11-24 2012-06-13 飞天诚信科技股份有限公司 Pulse light signal identification method and apparatus thereof
CN102820946A (en) * 2011-06-07 2012-12-12 中兴通讯股份有限公司 Transmission equipment and method for initiatively releasing own information of transmission equipment
WO2016000367A1 (en) * 2014-06-30 2016-01-07 中兴通讯股份有限公司 Trunking communication service processing method, core network device, ue and storage medium
CN110752979A (en) * 2019-10-30 2020-02-04 迈普通信技术股份有限公司 Tunnel transmission method, device and network equipment of message

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7535930B2 (en) * 2003-04-10 2009-05-19 Samsung Electronics Co., Ltd. GEM frame structure showing payload type of frame and method for processing data thereof
KR100594128B1 (en) * 2003-04-30 2006-06-28 삼성전자주식회사 GOM OAM Frame Transmission Method in Gigabit Passive Optical Subscriber Network
CN100512059C (en) * 2006-08-16 2009-07-08 华为技术有限公司 Method and device for transmitting synchronization digital system service in passive optical network

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010148708A1 (en) * 2009-11-10 2010-12-29 中兴通讯股份有限公司 Method and device for implementing the recombination for ethernet packets in a gigabit passive optical network (gpon) system
CN102056029B (en) * 2009-11-10 2013-06-05 中兴通讯股份有限公司 Method and device for implementing Ethernet packet recombination in GPON system
US8909044B2 (en) 2009-11-12 2014-12-09 Zte Corporation Method for transmitting data and gigabit-capable passive optical network system
WO2010148887A1 (en) * 2009-11-12 2010-12-29 中兴通讯股份有限公司 Method for data transmission and system for gigabit passive optical network
CN102065344A (en) * 2009-11-12 2011-05-18 中兴通讯股份有限公司 Data transmission method and gigabit-capable passive optical network system
CN102065344B (en) * 2009-11-12 2016-09-07 中兴通讯股份有限公司 Data transmission method and Gbit passive optical network system
CN101924648A (en) * 2010-07-22 2010-12-22 中兴通讯股份有限公司 Adaptive method and adaptive device of service veneer
CN101924648B (en) * 2010-07-22 2015-05-13 中兴通讯股份有限公司 Adaptive method and adaptive device of service veneer
CN102820946A (en) * 2011-06-07 2012-12-12 中兴通讯股份有限公司 Transmission equipment and method for initiatively releasing own information of transmission equipment
WO2012167681A1 (en) * 2011-06-07 2012-12-13 中兴通讯股份有限公司 Transmission device and method for distributing information thereof
CN102255771A (en) * 2011-06-12 2011-11-23 中山爱科数字科技有限公司 Device for identifying interregional integrated service
CN102497265B (en) * 2011-11-24 2014-03-12 飞天诚信科技股份有限公司 Pulse light signal identification method and apparatus thereof
WO2013075379A1 (en) * 2011-11-24 2013-05-30 飞天诚信科技股份有限公司 Pulse optical signal recognition method and device
US9112855B2 (en) 2011-11-24 2015-08-18 Feitian Technologies Co., Ltd. Method for identifying pulse optical signal and device thereof
CN102497265A (en) * 2011-11-24 2012-06-13 飞天诚信科技股份有限公司 Pulse light signal identification method and apparatus thereof
WO2016000367A1 (en) * 2014-06-30 2016-01-07 中兴通讯股份有限公司 Trunking communication service processing method, core network device, ue and storage medium
US10051443B2 (en) 2014-06-30 2018-08-14 Zte Corporation Trunking communication service processing method, core network device, UE and storage medium
CN110752979A (en) * 2019-10-30 2020-02-04 迈普通信技术股份有限公司 Tunnel transmission method, device and network equipment of message
CN110752979B (en) * 2019-10-30 2021-09-17 迈普通信技术股份有限公司 Tunnel transmission method, device and network equipment of message

Also Published As

Publication number Publication date
CN101567842B (en) 2012-07-04
WO2009129721A1 (en) 2009-10-29

Similar Documents

Publication Publication Date Title
CN101567842B (en) Method, device and system for transmitting and receiving service data
US11444798B2 (en) Methods and apparatus for configuring a flex ethernet node
CN110691034B (en) Method and device for transmitting service flow of flexible Ethernet
US20080260385A1 (en) Signal processing apparatus and method for gigabit passive optical network
EP1978654B1 (en) A method for mapping the service stream to the service transmission channel, system and optical network terminator thereof
JP3805333B2 (en) Method for confirming multicast transmission method in Ethernet (registered trademark) passive optical network
CN101317377B (en) Device, method and system for configuring Ethernet service in passive optical network
CN101156396B (en) Data frame transmission processing method and system
EP2154798B1 (en) Ethernet data reforming apparatus and method
EP2326059B1 (en) Mapping method, apparatus and system for data transmission
US8199775B2 (en) Optical transmission device and optical transmission method
CN102045130B (en) Downlink framing method, optical line terminal and passive optical network system
US9621970B2 (en) OLT MAC module for efficiently processing OAM frames
CN103368808A (en) Transparent edge routing bridge
KR102450095B1 (en) Data transmission method, transmission device, and reception device
CN101227334B (en) Encapsulation and processing method of operation management maintenance protocol data unit
CN102652414B (en) Forwarding a packet in a sensor personal area network
CN103269277A (en) Method and system for finding link, first network element and network management equipment
CN113890680A (en) Transmission method applied to fiber channel avionics network DDS
WO2017193711A1 (en) Data transmission method and device
CN109951458B (en) RapidIO/FC protocol conversion system and method applied to simulation ICP environment
US20030063345A1 (en) Wayside user communications over optical supervisory channel
CN116781611A (en) Data exchange equipment and method based on flexible Ethernet and deterministic network
CN1738224B (en) TDM data and frame format conversion circuit and method , transmission switching system and method
US6996095B2 (en) Shared VT connectivity over SONET

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20170423