CN101753527A - Method, system and device for transmitting bandwidth distribution information in transport network - Google Patents
Method, system and device for transmitting bandwidth distribution information in transport network Download PDFInfo
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Abstract
The invention discloses a method, a system and a device for transmitting bandwidth distribution information in a transport network. The method comprises the steps of: dividing the bandwidth distribution information into a plurality of bandwidth map segments by a sending end, wherein the bandwidth distribution information is used for indicating the time slot position and the length of a T-CONT frame in a data payload area; and respectively bearing the bandwidth map segments in data frames frame by frame for sending the bandwidth map segments, wherein the data payload area in the data frames bears the T-CONT frame. By adopting the invention, the bandwidth utilization rate of the service data in the transmission network can be improved.
Description
Technical field
The present invention relates to data communication technology, be specifically related to a kind of method, system and equipment that transmits transmission bandwidth assignment information in the net.
Background technology
Rise and PON (Passive Optical Network along with new applications such as IPTV, EPON) use of technology, requirement realizes the unified transmission of multiple business in transmitting network, such as real time business such as voice, non-real-time service such as video that bandwidth guarantees, online game and other non-real-time service as network browsing etc.Because the impossible unconfined increase of the bandwidth of communication network, transfer of data not only needs to carry multiple business, and need reasonable distribution channel width, change, and guarantee for different kinds of business provides different service quality with the bandwidth demand that adapts to different kinds of business.
The present patent application people has proposed a kind of multi-service transmitting network network framework in the patent application of having submitted to.As shown in Figure 1, be the network architecture schematic diagram of this multi-service transmitting network:
This network layer includes service adapting layer, channel layer and transmission convergence layer three-decker.Wherein, service adapting layer is responsible for miscellaneous service is carried out the encapsulation and the decapsulation of Unified Form, the miscellaneous service unification is encapsulated as GEM (the Gigabit Passive Optical Network Encapsulation Mode of expansion, G-PON Encapsulation Mode) frame, and require in network, to specify the professional unique sign of each bar.According to type of service, priority and destination address etc., the GEM frame of a plurality of expansions is formed dissimilar transmission container (T-CONT) frames, add that path overhead constitutes channel layer, can realize alarm end to end and conveying function monitoring to channel layer.All T-CONT frames are formed transmission convergence layer (TC) frame, add physical layer overhead, comprise frame head synchronously, fields such as administration overhead and bandwidth map, to make things convenient in the network main frame to the communication and the management of each node, the convenient distribution time slot of adjusting each T-CONT frame is realized the dynamic bandwidth adjustment.
The frame structure of this multi-service transmitting network is as shown in Figure 2:
Comprise PCB (Physical Control Block, physics controll block) and Payload (payload) two parts.Wherein, the payload user data district is made up of a plurality of T-CONT frames.
Comprise frame head, physical layer overhead and bandwidth map indication among the PCB.Wherein:
Physical layer overhead comprises fields such as multi-frame indication, signalling path, data check, APS and monitoring.Comprise the superframe counter in the multi-frame indication.
The bandwidth map indication comprises bandwidth map length of field and bandwidth map two parts.The bandwidth map length of field is represented bandwidth map self length subsequently.Bandwidth map is used to indicate the allocated bandwidth situation of each T-CONT frame, and the length of bandwidth map is relevant with the quantity of T-CONT frame.
After line speed is determined, the length of PCB+Payload will be fixed.Because PCB will distribute bandwidth map for each T-CONT, therefore, when the quantity of T-CONT frame increases, the quantity of BWmap (bandwidth map) increases, the length that causes PCB increases, the length of PCB may take massive band width, makes Payload length with corresponding minimizing, thereby has reduced the bandwidth availability ratio of business datum.
Summary of the invention
The embodiment of the invention provides a kind of method, system and equipment that transmits transmission bandwidth assignment information in the net, to improve the business datum bandwidth utilization.
A kind of method that transmits transmission bandwidth assignment information in the net that the embodiment of the invention provides comprises:
Transmitting terminal is divided into some bandwidth map fragments with bandwidth allocation information, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section;
With described bandwidth map fragment respectively frame by frame be carried in the Frame and send, the payload user data area carrier in the described Frame has the T-CONT frame.
A kind of transmission net node that the embodiment of the invention provides comprises:
Segmenting unit is used for bandwidth allocation information is divided into some bandwidth map fragments, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section;
The bandwidth allocation information transmitting element, be used for described some bandwidth map fragments respectively frame by frame be carried to Frame and send, the payload user data area carrier in the described Frame has the T-CONT frame.
A kind of transmission net node that the embodiment of the invention provides comprises:
Receiving element is used for receiving data frames, comprises the bandwidth map fragment in the described Frame, and described bandwidth map fragment is the part of bandwidth allocation information;
Record cell is used for the information according to the physics controll block multi-frame indication territory of described Frame, writes down the bandwidth map fragment in the described Frame;
Determining unit is used for determining whether described receiving element receives whole bandwidth map fragments of described bandwidth allocation information;
Recomposition unit is used for after described determining unit is determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
A kind of system that transmits transmission bandwidth assignment information in the net that the embodiment of the invention provides comprises:
Transmitting terminal, be used for bandwidth allocation information is divided into some bandwidth map fragments, and frame by frame is carried in the Frame and sends respectively, and the payload user data area carrier in the described Frame has the T-CONT frame, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section;
Receiving terminal, be used for receiving data frames, according to the information in the physics controll block multi-frame indication territory in the described Frame, write down the bandwidth map fragment in the described Frame, and after determining to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
The method of transmission bandwidth assignment information in the transmission net that the embodiment of the invention provides, system and equipment, T-CONT frame at bandwidth allocation information in the multi-service transmitting network data frame structure and payload user data district transmits with the road, and the characteristics relevant with the quantity of T-CONT frame, under the situation of as far as possible keeping the existing frame structure of multi-service transmitting network, reduce the frequency that Dynamic Bandwidth Allocation is adjusted, to the highlyest originally can every framing control once be reduced to some framing control once, promptly bandwidth allocation information is divided into some bandwidth map fragments at transmitting terminal, and frame by frame is carried in the Frame and sends respectively, and the payload user data area carrier in the described Frame has the T-CONT frame.Like this, after receiving terminal was received Frame, the information according in the physics controll block multi-frame indication territory write down bandwidth map fragment and count value in the described Frame; After receiving terminal is determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.Thereby reduced the bandwidth usage in bandwidth map territory in the multi-service transmitting network data frame structure, improved the bandwidth availability ratio of business datum.
Description of drawings
Fig. 1 is the network architecture schematic diagram of multi-service transmitting network;
Fig. 2 is the frame structure schematic diagram of multi-service transmitting network;
Fig. 3 is the flow chart that the embodiment of the invention transmits the method for transmission bandwidth assignment information in the net;
Fig. 4 is a kind of flow chart that transmitting terminal sends Frame in the embodiment of the invention;
Fig. 5 is a kind of flow chart of receiving terminal receiving data frames in the embodiment of the invention;
Fig. 6 is the another kind of flow chart that transmitting terminal sends Frame in the embodiment of the invention;
Fig. 7 is the another kind of flow chart of receiving terminal receiving data frames in the embodiment of the invention;
Fig. 8 is the structural representation that the embodiment of the invention transmits the system of transmission bandwidth assignment information in the net;
Fig. 9 is a kind of structural representation that the embodiment of the invention transmits the net node;
Figure 10 is the another kind of structural representation that the embodiment of the invention transmits the net node.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.
The embodiment of the invention transmits the method for transmission bandwidth assignment information in the net, T-CONT frame at bandwidth allocation information in the multi-service transmitting network data frame structure and payload user data district transmits with the road, and the characteristics relevant with the quantity of T-CONT frame, under the situation of as far as possible keeping the existing frame structure of multi-service transmitting network, reduce the frequency that Dynamic Bandwidth Allocation is adjusted, to the highlyest originally can every framing control once be reduced to some framing control once, promptly bandwidth allocation information is divided into some bandwidth map fragments at transmitting terminal, and frame by frame is carried in the Frame and sends respectively, and the payload user data area carrier in the described Frame has the T-CONT frame.That is to say that the T-CONT frame in bandwidth map fragment and payload user data district transmits with the road.Correspondingly, after receiving terminal was received Frame, the information according in the physics controll block multi-frame indication territory write down bandwidth map fragment and count value in the described Frame; After receiving terminal is determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment complete bandwidth allocation information of recombinating out of record.
To send bandwidth allocation information to transmitting terminal in the embodiment of the invention below, and the process of receiving terminal reception bandwidth allocation information is carried out the integral body description.
As shown in Figure 3, be the flow chart that the embodiment of the invention transmits the method for transmission bandwidth assignment information in the net, mainly may further comprise the steps:
Described bandwidth allocation information can the dedicated bandwidth cartographic representation, it can be the vectorial array of a multibyte structure, corresponding bandwidth that T-CONT distributed of each vector in the array, described vector comprises: the gap marker of T-CONT and this channel data original position and the end position in the payload user data district;
Such as, can the bandwidth allocation information that portion is complete be divided into K part (not requiring five equilibrium), each part is as a bandwidth map fragment, and the T-CONT frame in each bandwidth map fragment frame by frame and payload user data district sends with the road;
Such as, in multi-frame indication territory, comprise the superframe counter field, can utilize the superframe counter low several as indication information, be that in the K frame which is individual with the Frame of indicating current transmission;
After step 303, receiving terminal are determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
Described receiving terminal can determine to receive whole bandwidth map fragments of described bandwidth allocation information in the following manner:
(1) the bandwidth map fragment total value of making an appointment, like this, reach the fragment total value of bandwidth map in described count value after, receiving terminal determines to receive whole bandwidth map fragments of described bandwidth allocation information.Certainly, described fragment total value can pre-configuredly be given and be transmitted each online node, thereby makes each node by the Frame that receives being counted the whole bandwidth map fragments that determine whether to receive described bandwidth allocation information; Described fragment total value also can be carried in the Frame of bandwidth map fragment that transmitting terminal sends described bandwidth allocation information for the first time.
(2) transmitting terminal sends bandwidth map and upgrades opening flag before sending new bandwidth allocation information, and after the bandwidth map fragment of described bandwidth allocation information all sends, sends bandwidth map and upgrade end mark; Like this, receiving terminal upgrades whole bandwidth map fragments that end mark just can determine to receive described bandwidth allocation information according to described bandwidth map renewal opening flag or the described bandwidth map received.
The embodiment of the invention is not limited in above-mentioned this dual mode, can also adopt other modes, be divided into K part (every part length is identical or different) such as the bandwidth allocation information that portion is complete, as long as then make receiving terminal can learn the value of K, and the bandwidth map fragment is that in the K frame which gets final product in the Frame that receives.
Need to prove, in order to prevent loading error occurring, can also after each bandwidth map fragment, increase check information, such as, can adopt CRC (Cyclic Redundancy Check, cyclic redundancy check (CRC)), parity check, BIP modes such as (Bit-Interleaved Parity, Bit-Interleaved Parities); After can also being sent completely in whole bandwidth map fragments, increase check information, can adopt modes such as CRC, parity check, BIP equally full detail among the PCB.Like this, after receiving terminal is whenever received a Frame, the bandwidth map fragment of receiving is carried out verification,, thereby mistake can be controlled in the minimum scope if the verification failure then stops to receive follow-up bandwidth map fragment according to described check information.And, can also manage according to following method slip fault:
1. abandon the bandwidth map fragment of having received, and notice transmitting terminal data are made mistakes;
2. transmitting terminal is ended to send the bandwidth map fragment, and notifies other receiving terminal wrong generation;
3. transmitting terminal resends bandwidth allocation information according to above-mentioned method.
As seen, utilize the embodiment of the invention to transmit the method for transmission bandwidth assignment information in the net, can reduce the bandwidth usage of PCB greatly, thereby can improve the bandwidth availability ratio of business datum.
Below respectively with transmitting terminal in different ways the transmission bandwidth assignment information be example, the embodiment of the invention is further described.
In following examples, bandwidth allocation information is represented with bandwidth map.
It is example that following examples are adjusted a bandwidth map with fixed number of frames (such as 64 frames), i.e. bandwidth map of the fastest 64 frame updates of receiving terminal.Transmitting terminal sends once complete bandwidth map need be with 64 frames (125us*65=8ms), 64 is 6 powers of 2, so low 6 bits of superframe counter domain among the PCB are made counter, the expression transmitting terminal sends or receiving terminal receives is which part bandwidth map fragment in 64 parts, the bandwidth map that receiving terminal utilizes low 6 bits of superframe counter to regain one's integrity.After receiving terminal receives complete bandwidth map, upgrade the bandwidth map of its preservation.
Because after receiving terminal receives Frame, need resolve payload user data district in the described Frame according to the bandwidth map in the Frame that receives, obtain required business datum.Therefore, before not obtaining a complete bandwidth map, receiving terminal needs to resolve the Frame that receives according to the bandwidth map of preserving before own.
As shown in Figure 4, be a kind of flow chart that transmitting terminal sends Frame in the embodiment of the invention, mainly may further comprise the steps:
Step 401 produces bandwidth map, and it is divided into 64 parts;
That is to say, described bandwidth map is divided into 64 bandwidth map fragments, can five equilibrium, also can be five equilibrium not;
Step 402 judges whether low 6 K of superframe counter equal 0; If then execution in step 403; Otherwise return step 402;
Step 403 judges that whether low 6 K of superframe counter are less than 63; If then execution in step 404; Otherwise execution in step 405;
Step 404 sends K part bandwidth map fragment; Return step 403 then;
When sending every part of bandwidth map fragment, need to calculate simultaneously corresponding descending payload length, and in same frame, send to receiving terminal;
Step 405 sends the bandwidth map end mark, finishes so that receiving terminal learns according to this sign that all 64 parts of bandwidth map all send;
This step 405 is an optional step, and transmitting terminal also can make receiving terminal learn what bandwidth map fragments are described bandwidth map be divided into altogether by other modes, thereby can correctly recombinate out complete bandwidth map.
Send mode based on above-mentioned bandwidth map shown in Figure 4 as shown in Figure 5, shows a kind of flow chart of receiving terminal receiving data frames in the embodiment of the invention, mainly may further comprise the steps:
Step 501 judges whether low 6 K of superframe counter in the Frame that receives equal 0; If then execution in step 502; Otherwise return step 501;
Step 502 is preserved the bandwidth map fragment in the Frame that receives;
Step 503 judges that whether low 6 K of described superframe counter are less than 63; If then execution in step 504; Otherwise execution in step 505;
Step 504 is preserved the K part bandwidth map fragment that receives; Return step 503 then;
Step 505 judges whether to receive the bandwidth map end mark; If then execution in step 506; Add step 501 otherwise return;
This step 505 is an optional step, if transmitting terminal makes receiving terminal learn what bandwidth map fragments are described bandwidth map be divided into altogether by other modes, also can send the bandwidth map end mark, correspondingly, receiving terminal can not received the bandwidth map end mark yet, directly enters step 506 with regard to not needing step 505 yet;
As seen, transmission and receive mode by Fig. 4 and bandwidth map shown in Figure 5 can make the bandwidth usage of PCB be reduced to original 1/K, thereby can improve the bandwidth availability ratio of business datum greatly.
Following examples illustrate the transmission and the receiving course of bandwidth map to be example through bandwidth map of variable number framing control.After receiving terminal receives complete bandwidth map, upgrade the bandwidth map of its preservation.
As shown in Figure 6, be the another kind of flow chart that transmitting terminal sends Frame in the embodiment of the invention, mainly may further comprise the steps:
Step 601 produces bandwidth map, and it is divided into X part, and X is a variable;
Described bandwidth map is divided into X bandwidth map fragment, can five equilibrium, also can be five equilibrium not; The length of bandwidth map fragment can be pre-defined, for example determines the length upper limit of bandwidth map, and this length value is big more, the number of times that sends the bandwidth map fragment is few more, the bandwidth usage of bandwidth map is just high more, in actual applications, can come to determine the length of each bandwidth map fragment as required;
Step 602 sends bandwidth map and upgrades opening flag;
That is to say that transmitting terminal at first sends bandwidth map and upgrades opening flag, with the notice receiving terminal when preparing to adjust bandwidth map;
Alternatively, when sending the bandwidth map fragment, the also additional check information that carries;
Step 604 after X part bandwidth map fragment is sent completely, sends bandwidth map and upgrades end mark, with the notice receiving terminal.
Send mode based on above-mentioned bandwidth map shown in Figure 6 as shown in Figure 7, shows the another kind of flow chart of receiving terminal receiving data frames in the embodiment of the invention, mainly may further comprise the steps:
Step 702, the currency of record superframe counter;
Step 703 judges whether to receive bandwidth map and upgrades end mark; If then execution in step 704; Otherwise execution in step 705;
Step 704 is according to the complete bandwidth map of bandwidth map fragment reorganization of preserving; Finish this regrouping process then;
Step 705 according to the value of superframe counter, receives and preserves the bandwidth map fragment; Return step 703 then.
As seen, transmission and receive mode by Fig. 6 and bandwidth map shown in Figure 7, the bandwidth map that receiving terminal is sent according to transmitting terminal upgrades opening flag and bandwidth map is upgraded end mark, and the value of the superframe counter when receiving, determine the order of bandwidth map fragment, the complete bandwidth map of recombinating out.This mode can reduce the bandwidth usage of PCB, improves the bandwidth availability ratio of business datum.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
The embodiment of the invention also provides a kind of system that transmits transmission bandwidth assignment information in the net, as shown in Figure 8, is the structural representation that the embodiment of the invention transmits the system of transmission bandwidth assignment information in the net.
This system comprises: transmitting terminal 801 and receiving terminal 802.Wherein:
Transmitting terminal 801 is used for bandwidth allocation information is divided into some bandwidth map fragments, and frame by frame is carried in the Frame and sends respectively, payload user data area carrier in the described Frame has the T-CONT frame, described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section, can the dedicated bandwidth cartographic representation; Receiving terminal 802 is used for receiving data frames, according to the information in the physics controll block multi-frame indication territory in the described Frame, write down bandwidth map fragment and count value in the described Frame, and after determining to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment complete described bandwidth allocation information of recombinating out of record.
In actual applications, receiving terminal can determine whether to receive whole bandwidth map fragments of described bandwidth allocation information according to different modes, such as:
(1) the bandwidth map fragment total value of making an appointment, like this, reach the fragment total value of bandwidth map in described count value after, receiving terminal determines to receive whole bandwidth map fragments of described bandwidth allocation information.Certainly, described fragment total value can pre-configuredly be given and be transmitted each online node, thereby makes each node by the Frame that receives being counted the whole bandwidth map fragments that determine whether to receive described bandwidth allocation information; Described fragment total value also can be carried in the Frame of bandwidth map fragment that transmitting terminal sends described bandwidth allocation information for the first time.
(2) transmitting terminal sends bandwidth map and upgrades opening flag before sending new bandwidth allocation information, and after the bandwidth map fragment of described bandwidth allocation information all sends, sends bandwidth map and upgrade end mark.Like this, receiving terminal upgrades whole bandwidth map fragments that end mark just can determine to receive described bandwidth allocation information according to described bandwidth map renewal opening flag and the described bandwidth map received.
In order to prevent to make mistakes in the transmission course, can also after each bandwidth map fragment, increase check information, such as, can adopt modes such as CRC, parity check, BIP; After can also being sent completely in whole bandwidth map fragments, increase check information, can adopt modes such as CRC, parity check, BIP equally full detail among the PCB.Like this, after receiving terminal is whenever received a Frame, the bandwidth map fragment of receiving is carried out verification,, thereby mistake can be controlled in the minimum scope if the verification failure then stops to receive follow-up bandwidth map fragment according to described check information.And, can also manage according to following method slip fault:
1. abandon the bandwidth map fragment of having received, and notice transmitting terminal data are made mistakes;
2. transmitting terminal is ended to send the bandwidth map fragment, and notifies other receiving terminal wrong generation;
3. transmitting terminal resends bandwidth allocation information according to above-mentioned method.
Utilize the embodiment of the invention to transmit the method for transmission bandwidth assignment information in the net, can reduce the bandwidth usage of PCB greatly, thereby can improve the bandwidth availability ratio of business datum.
Need to prove, the method and system of the embodiment of the invention, be not only applicable to the above-mentioned multi-service transmitting network of mentioning, and be equally applicable to GPON (Gigabit-PON, gigabit passive optical network) network such as, the frame structure that this class transmits network has following characteristics: bandwidth allocation information is relevant with the quantity of road transmission and bandwidth allocation information and payload user data with payload user data.
For multi-service transmitting network, described transmitting terminal can be a host node, and receiving terminal is an ordinary node.Each node in the multi-service transmitting network need be collected each service bandwidth solicited message of this intranodal, and report host node, host node is according to the service bandwidth solicited message and the current line bandwidth resource of each this node, for each this node carries out allocated bandwidth, and bandwidth allocation information (comprising bandwidth map) is handed down to each this node.
For the GPON network, described transmitting terminal can be OLT (Optical Line Terninals, an optical line terminal), and receiving terminal is ONU (Optical Network Unit, an optical network unit).
Utilize the method and system of the embodiment of the invention, can make transmission network improve the bandwidth availability ratio of business datum greatly with this characteristics.
The embodiment of the invention also provides a kind of transmission net node, as shown in Figure 9, is the structural representation of this transmission net node.
This transmission net node 900 comprises: segmenting unit 901 and bandwidth allocation information transmitting element 902.Wherein, segmenting unit 901 is used for bandwidth allocation information is divided into some bandwidth map fragments, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section; Bandwidth allocation information transmitting element 902, be used for described some bandwidth map fragments respectively frame by frame be carried to Frame and send, the payload user data area carrier in the described Frame has the T-CONT frame.
In this embodiment, described transmission net node also can further comprise: sign transmitting element 903, be used for before the bandwidth map fragment that sends new bandwidth allocation information, send bandwidth map and upgrade opening flag, and after the bandwidth map fragment of described bandwidth allocation information all sends, send bandwidth map and upgrade end mark.
This transmission net node 900 can be the host node that transmits in the net, transmits the transmitting terminal of the system of transmission bandwidth assignment information in the net as the embodiment of the invention.Its detailed process that sends bandwidth allocation information can not repeat them here with reference to the description of front.
The embodiment of the invention also provides a kind of transmission net node, as shown in figure 10, is the structural representation of this transmission net node.
This transmission net node 100 comprises: receiving element 101, record cell 102, determining unit 103 and recomposition unit 104.Wherein, receiving element 101 is used for receiving data frames, comprises the bandwidth map fragment in the described Frame, and described bandwidth map fragment is the part of bandwidth allocation information; Record cell 102 is used for the information according to the physics controll block multi-frame indication territory of described Frame, writes down the bandwidth map fragment in the described Frame; Determining unit 103 is used for determining whether receiving element 101 receives whole bandwidth map fragments of described bandwidth allocation information; Recomposition unit 104 is used for after determining unit 103 is determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
In this embodiment, described determining unit 103 can determine whether described receiving element 101 receives whole bandwidth map fragments of described bandwidth allocation information according to different modes.
For example, if after the bandwidth map number of fragments that described receiving element 101 is received reaches the fragment total value of bandwidth map, then determine to receive whole bandwidth map fragments of described bandwidth allocation information.In addition, described receiving element 101 also is used to receive bandwidth map and upgrades opening flag and bandwidth map renewal end mark, like this, described determining unit 103 just can be upgraded opening flag and bandwidth map is upgraded whole bandwidth map fragments that end mark determines to receive described bandwidth allocation information according to the bandwidth map that described receiving element 101 is received.
For the bandwidth information that guarantees to receive is correct, can also follow check information after each bandwidth map fragment.Described transmission net node also can further comprise: verification unit 105, be used for carrying out verification according to the bandwidth map fragment that described check information is received receiving element 101, if the verification failure then notifies described receiving element to stop to receive follow-up bandwidth map fragment.
This transmission net node 100 can be transmit in the net from node, transmit the receiving terminal of the system of transmission bandwidth assignment information in the net as the embodiment of the invention.Its detailed process according to the Frame reorganization bandwidth allocation information that receives can not repeat them here with reference to the description of front.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. a method that transmits transmission bandwidth assignment information in the net is characterized in that, comprising:
Bandwidth allocation information is divided into some bandwidth map fragments, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section;
With described bandwidth map fragment respectively frame by frame be carried in the Frame and send, the payload user data area carrier in the described Frame has the T-CONT frame.
2. method according to claim 1 is characterized in that, also comprises:
Receiving terminal is received described Frame, and the information according in the physics controll block multi-frame indication territory of described Frame writes down the bandwidth map fragment in the described Frame;
After receiving terminal is determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
3. method according to claim 2 is characterized in that, described receiving terminal determines that whole bandwidth map fragments of receiving described bandwidth allocation information are specially:
Reach the fragment total value of bandwidth map in the bandwidth map number of fragments of receiving after, receiving terminal determines to receive whole bandwidth map fragments of described bandwidth allocation information.
4. method according to claim 2 is characterized in that, described method also comprises:
Transmitting terminal sends bandwidth map and upgrades opening flag before the bandwidth map fragment that sends new bandwidth allocation information, and after the bandwidth map fragment of described bandwidth allocation information all sends, sends bandwidth map and upgrade end mark;
Described receiving terminal determines that whole bandwidth map fragments of receiving described bandwidth allocation information are specially:
Described receiving terminal upgrades opening flag according to the described bandwidth map of receiving and described bandwidth map is upgraded whole bandwidth map fragments that end mark determines to receive described bandwidth allocation information.
5. according to each described method of claim 2 to 4, it is characterized in that each bandwidth map fragment heel is with check information; Described method also comprises:
Receiving terminal carries out verification according to described check information to the bandwidth map fragment of receiving, if the verification failure then stops to receive follow-up bandwidth map fragment.
6. one kind is transmitted the net node, it is characterized in that, comprising:
Segmenting unit is used for bandwidth allocation information is divided into some bandwidth map fragments, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section;
The bandwidth allocation information transmitting element, be used for described some bandwidth map fragments respectively frame by frame be carried to Frame and send, the payload user data area carrier in the described Frame has the T-CONT frame.
7. transmission net node according to claim 6 is characterized in that, also comprises:
The sign transmitting element is used for before the bandwidth map fragment that sends new bandwidth allocation information, sends bandwidth map and upgrades opening flag, and after the bandwidth map fragment of described bandwidth allocation information all sends, send bandwidth map and upgrade end mark.
8. one kind is transmitted the net node, it is characterized in that, comprising:
Receiving element is used for receiving data frames, comprises the bandwidth map fragment in the described Frame, and described bandwidth map fragment is the part of bandwidth allocation information;
Record cell is used for the information according to the physics controll block multi-frame indication territory of described Frame, writes down the bandwidth map fragment in the described Frame;
Determining unit is used for determining whether described receiving element receives whole bandwidth map fragments of described bandwidth allocation information;
Recomposition unit is used for after described determining unit is determined to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
9. transmission net node according to claim 8, it is characterized in that, after described determining unit determines that bandwidth map number of fragments that described receiving element is received reaches the fragment total value of bandwidth map, determine to receive whole bandwidth map fragments of described bandwidth allocation information.
10. transmission net node according to claim 8 is characterized in that,
Described receiving element also is used to receive bandwidth map and upgrades opening flag and bandwidth map renewal end mark;
The bandwidth map that described determining unit is received according to described receiving element upgrades opening flag and bandwidth map is upgraded whole bandwidth map fragments that end mark determines to receive described bandwidth allocation information.
11. to 10 each described transmission net nodes, it is characterized in that each bandwidth map fragment heel is with check information according to Claim 8; Described transmission net node also comprises:
Verification unit is used for carrying out verification according to the bandwidth map fragment that described check information is received described receiving element, if the verification failure then notifies described receiving element to stop to receive follow-up bandwidth map fragment.
12. a system that transmits transmission bandwidth assignment information in the net is characterized in that, comprising:
Transmitting terminal, be used for bandwidth allocation information is divided into some bandwidth map fragments, and frame by frame is carried in the Frame and sends respectively, and the payload user data area carrier in the described Frame has the T-CONT frame, and described bandwidth allocation information is used for the time slot position and the length of the T-CONT frame of designation data payload section;
Receiving terminal, be used for receiving data frames, according to the information in the physics controll block multi-frame indication territory in the described Frame, write down the bandwidth map fragment in the described Frame, and after determining to receive whole bandwidth map fragments of described bandwidth allocation information, according to the bandwidth map fragment described bandwidth allocation information of recombinating out of record.
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| CN200810186517A CN101753527B (en) | 2008-12-22 | 2008-12-22 | Method, system and device for transmitting bandwidth distribution information in transport network |
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| CN (1) | CN101753527B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102136992A (en) * | 2010-06-30 | 2011-07-27 | 华为技术有限公司 | Method of service transmission in multi-loop networking and network equipment thereof |
| CN102347902A (en) * | 2011-09-26 | 2012-02-08 | 北京星网锐捷网络技术有限公司 | Transmission interval regulation method and device and network equipment |
| CN104427412A (en) * | 2013-08-20 | 2015-03-18 | 中兴通讯股份有限公司 | Method and device for updating bandwidth map |
| CN104469554A (en) * | 2013-09-13 | 2015-03-25 | 中兴通讯股份有限公司 | Service transmitting and receiving methods and devices |
| CN111866946A (en) * | 2020-06-30 | 2020-10-30 | 北京瀚诺半导体科技有限公司 | Bandwidth allocation method and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5926478A (en) * | 1996-12-19 | 1999-07-20 | Ericsson, Inc. | Data transmission over a point-to-multipoint optical network |
| CN1964227B (en) * | 2005-11-11 | 2012-03-07 | 华为技术有限公司 | A method for data interaction and data transmit-receive module |
| CN100527708C (en) * | 2006-04-30 | 2009-08-12 | 华为技术有限公司 | Method for transmitting service frame in passive light network, optical network unit and optical line circuit |
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2008
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136992A (en) * | 2010-06-30 | 2011-07-27 | 华为技术有限公司 | Method of service transmission in multi-loop networking and network equipment thereof |
| WO2011140916A1 (en) * | 2010-06-30 | 2011-11-17 | 华为技术有限公司 | Service transmission method and network device in multi-ring network |
| CN102136992B (en) * | 2010-06-30 | 2014-03-12 | 华为技术有限公司 | Method of service transmission in multi-loop networking and network equipment thereof |
| CN102347902A (en) * | 2011-09-26 | 2012-02-08 | 北京星网锐捷网络技术有限公司 | Transmission interval regulation method and device and network equipment |
| CN102347902B (en) * | 2011-09-26 | 2014-04-23 | 北京星网锐捷网络技术有限公司 | Transmission interval regulation method and device and network equipment |
| CN104427412A (en) * | 2013-08-20 | 2015-03-18 | 中兴通讯股份有限公司 | Method and device for updating bandwidth map |
| CN104427412B (en) * | 2013-08-20 | 2019-06-18 | 中兴通讯股份有限公司 | A kind of method and device that bandwidth map updates |
| CN104469554A (en) * | 2013-09-13 | 2015-03-25 | 中兴通讯股份有限公司 | Service transmitting and receiving methods and devices |
| CN104469554B (en) * | 2013-09-13 | 2019-05-14 | 中兴通讯股份有限公司 | A kind of business sending, receiving method and device |
| CN111866946A (en) * | 2020-06-30 | 2020-10-30 | 北京瀚诺半导体科技有限公司 | Bandwidth allocation method and system |
| CN111866946B (en) * | 2020-06-30 | 2023-10-10 | 北京瀚诺半导体科技有限公司 | Bandwidth allocation method and system |
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| CN101753527B (en) | 2012-10-17 |
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