CN103369593B - A kind of method compressing reconciliation compressed ethernet message and network element device - Google Patents
A kind of method compressing reconciliation compressed ethernet message and network element device Download PDFInfo
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Abstract
The present invention provides a kind of method and network element device compressing and conciliating compressed ethernet message, and the method for this compressed ethernet message includes: receive Ethernet message；Layer 2 heading and/or layer 3 heading to described Ethernet message are compressed processing.According to the present invention to save the expense of ethernet header, the utilization rate of bandwidth of air-interface can be improved, save limited bandwidth of air-interface resource.
Description
Technical field
The present invention relates to communication field, in particular, relate to a kind of method compressing reconciliation compressed ethernet message during microwave communication and network element device.
Background technology
One of Main Means as modern communications transmission, microwave communication can provide powerful business transmittability, and due to its have that transmission capacity is big, the feature such as long distance transmission steady quality, small investment, low cost, construction period are short, easy to maintenance, just it is being widely used in the bearer network that 2G/3G moves, is becoming mobile operator and transmit the important selection of voice-and-data business.Due to its point-to-point transmission feature, microwave communication also between base station and base station, base station and base station control station and accessing be transmitted as backbone network between gateway.
Common microwave communication node is generally employed in pairs, and each website generally comprises modem module and transmitter unit.Modem module (IDU) is typically put in indoor；Rf transmitter unit (ODU) is typically positioned on steel tower together with antenna.Development along with mobile communication, in network, the business of transmission also becomes more diverse, either TDM (time division multiplex) business, E1 business or traditional Ethernet data business, all will in IDU framing, then by eating dishes without rice or wine to send, eating dishes without rice or wine of network element device is the most limited, along with the development of technology, the demand of bandwidth of air-interface increases day by day, how to save limited bandwidth of air-interface and becomes to become more and more important.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and network element device compressing and conciliating compressed ethernet message, to save the expense of ethernet header.
In order to solve above-mentioned technical problem, a kind of method that the invention provides compressed ethernet message, including:
Receive Ethernet message；
Layer 2 heading and/or layer 3 heading to described Ethernet message are compressed processing.
Further, said method also has following feature: described layer 2 heading to Ethernet message is compressed processing, including:
The data of described layer 2 heading are compared with the data in the first compaction table,
If consistent, then replace the data of described layer 2 heading with compressing mark corresponding in described first compaction table；
If it is inconsistent, then generating a compressing mark, transmission is carried the described Ethernet message of this compressing mark, and is updated described first compaction table, when receiving the data of layer 2 heading identical Ethernet message next time, replace the data of described layer 2 heading with the compressing mark of this generation.
Further, said method also has following feature: after described layer 2 heading to Ethernet message is compressed processing, also include:
Described Ethernet message after transmission process, described Ethernet message carries check information.
Further, said method also has following feature: described layer 3 heading to Ethernet message is compressed processing, including:
The data of layer 3 heading of described Ethernet message are divided into multiple trifle, the data of each trifle are compared with the data in the second compaction table,
If the data of each trifle are the most consistent with the data in described second compaction table, then replace the data of described layer 3 heading by corresponding compressing mark；
If the data that there is part trifle are inconsistent with the data in described second compaction table, then replace the data of described layer 3 heading by the data of the different little section number of corresponding compressing mark, indicating section and trifle, and update described second compaction table；
If the data of each trifle are the most inconsistent with the data in described second compaction table, it is then that each trifle distributes a compressing mark, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of described layer 3 heading, and update described second compaction table, when receiving the data of layer 3 heading identical Ethernet message next time, replace the data of described layer 3 heading with the compressing mark of this distribution.
Further, said method also has following feature: described layer 3 heading to Ethernet message is compressed processing, including:
The data of layer 3 heading of described Ethernet message are divided into multiple groups, each group are divided into multiple trifle, the data of each trifle in each group are compared with the data in the second compaction table,
If the data of each trifle in group are the most consistent with the data in described second compaction table, then replace the data of this group by the compressing mark that this group is corresponding；
If the data of the existence part trifle in group are inconsistent with the data in described second compaction table, then replace the data of this group by the data of the different little section number of compressing mark corresponding to this group, indicating section and trifle, and update described second compaction table；
If the data of each trifle in group are the most inconsistent with the data in described second compaction table, then join a compressing mark for this component, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of this group, and update described second compaction table, when receiving the Ethernet message that in layer 3 heading, the data of corresponding group are identical next time, replace the data of this group with the compressing mark of this distribution.
Further, said method also has following feature: updates described second compaction table and includes:
If the data that there is part trifle are inconsistent with the data in described second compaction table, then data corresponding in described second compaction table are replaced with the data of the inconsistent trifle of data；
If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule.
Further, said method also has following feature: after described layer 3 heading to Ethernet message is compressed processing, also include:
Described Ethernet message after transmission process, described Ethernet message carries check information.
In order to solve the problems referred to above, present invention also offers a kind of method decompressing Ethernet message, including:
Receive Ethernet message；
Layer 2 heading and/or layer 3 heading to described Ethernet message carry out decompression.
Further, said method also has following feature: layer 2 heading of described Ethernet message is carried out decompression, including:
If judging, the data of described layer 2 heading only include compressing mark, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；
If judging, the data of described layer 2 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；
If judging the data of described layer 2 heading also include compressing mark, the data of the most described layer 2 heading take out this compressing mark, the corresponding relation of this compressing mark Yu the data of described layer 2 heading is stored in described first decompression table.
Further, said method also has following feature: layer 3 heading of described Ethernet message is carried out decompression, including:
If judging, the data of described layer 3 heading only include compressing mark, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；
If judging, the data of described layer 3 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；
If judging, the data of described layer 3 heading include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；
If judging, the data of described layer 3 heading include compressing mark, indicate the most different little section numbers and the data of trifle, then be stored in described second decompression table by the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle.
Further, said method also has following feature: layer 3 heading of described Ethernet message is carried out decompression, including:
If judging, the data of described layer 3 heading include multi-group data, then decompress each data organized, including:
If the data in judgement group only include compressing mark, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；
If the data in judgement group only include compressing mark and check information, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying compressing mark corresponding to this group to the transmitting terminal of described Ethernet message；
If the data in judgement group include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；
If the data in judgement group include compressing mark, indicate the most different little section numbers and the data of trifle, then the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle is stored in described second decompression table.
In order to solve the problems referred to above, present invention also offers a kind of network element device, including:
First module, is used for receiving Ethernet message；
Second module, for being compressed processing to layer 2 heading of described Ethernet message and/or layer 3 heading.
Further, said network element equipment also has following feature: described second module includes:
First module, for the data of described layer 2 heading being compared with the data in the first compaction table, if unanimously, then replaces the data of described layer 2 heading with compressing mark corresponding in described first compaction table；If it is inconsistent, then generating a compressing mark, transmission is carried the described Ethernet message of this compressing mark, and is updated described first compaction table, when the Ethernet message that the data receiving layer 2 heading are identical, replace the data of described layer 2 heading with the compressing mark of this generation.
Further, said network element equipment also has following feature: described second module also includes:
Second unit, transmits the described Ethernet message after described first module processes, and described Ethernet message carries check information.
Further, said network element equipment also has following feature: described second module includes:
Unit the 3rd, for the data of layer 3 heading of described Ethernet message are divided into multiple trifle, the data of each trifle are compared with the data in the second compaction table, if the data of each trifle are the most consistent with the data in described second compaction table, then replace the data of described layer 3 heading by corresponding compressing mark；If the data that there is part trifle are inconsistent with the data in described second compaction table, then replace the data of described layer 3 heading by the data of the different little section number of corresponding compressing mark, indicating section and trifle, and trigger updating block and update described second compaction table；If the data of each trifle are the most inconsistent with the data in described second compaction table, it is then that each trifle distributes a compressing mark, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of described layer 3 heading, and trigger updating block described second compaction table of renewal, when the Ethernet message that the data receiving layer 3 heading are identical, replace the data of described layer 3 heading with the compressing mark of this distribution；
If data corresponding in described second compaction table inconsistent with the data in described second compaction table for there are the data of part trifle, are then replaced with the data of the inconsistent trifle of data by described updating block；If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule.
Further, said network element equipment also has following feature: described second module includes:
Unit the 4th, for the data of layer 3 heading of described Ethernet message are divided into multiple groups, each group is divided into multiple trifle, the data of each trifle in each group are compared with the data in the second compaction table, if the data of each trifle in group are the most consistent with the data in described second compaction table, then replace the data of this group by the compressing mark that this group is corresponding；If the data of the existence part trifle in group are inconsistent with the data in described second compaction table, then replace the data of this group by the data of the inconsistent trifle of the inconsistent little section number of compressing mark corresponding to this group, data and data, and trigger updating block and update described second compaction table；If the data of each trifle in group are the most inconsistent with the data in described second compaction table, then join a compressing mark for this component, the data of this group are replaced with the data of this compressing mark, each little section number and each trifle, and trigger updating block described second compaction table of renewal, when receiving the Ethernet message that in layer 3 heading, the data of corresponding group are identical, replace the data of this group with the compressing mark of this distribution；
If data corresponding in described second compaction table inconsistent with the data in described second compaction table for there are the data of part trifle, are then replaced with the data of the inconsistent trifle of data by updating block；If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule.
Further, said network element equipment also has following feature: described second module also includes:
Unit the 5th, the described Ethernet message after transmitting described Unit the 3rd or described 4th cell processing, described Ethernet message carries check information.
Further, said network element equipment also has following feature: described network element device also includes:
Three module, layer 2 heading and/or layer 3 heading to the Ethernet message received carry out decompression.
Further, said network element equipment also has following feature: described three module includes:
First module, if for judging that the data of described layer 2 heading only include compressing mark, then take out corresponding data according to this compressing mark, restore the data of described layer 2 heading from the first decompression table；If judging, the data of described layer 2 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；If judging the data of described layer 2 heading also include compressing mark, the data of the most described layer 2 heading take out this compressing mark, the corresponding relation of this compressing mark Yu the data of described layer 2 heading is stored in described first decompression table.
Further, said network element equipment also has following feature: described three module includes:
Second unit, if for judging that the data of described layer 3 heading only include compressing mark, then take out corresponding data according to this compressing mark, restore the data of described layer 3 heading from the second decompression table；If judging, the data of described layer 3 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；If judging, the data of described layer 3 heading include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；If judging, the data of described layer 3 heading include compressing mark, indicate the most different little section numbers and the data of trifle, then be stored in described second decompression table by the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle.
Further, said network element equipment also has following feature: described three module includes:
Unit the 3rd, if judging, the data of described layer 3 heading include multi-group data, then trigger Unit the 4th and decompress each data organized；
Described Unit the 4th, if only including compressing mark specifically for the data in judgement group, then takes out corresponding data according to this compressing mark from the second decompression table, restores the data of this group；If the data in judgement group only include compressing mark and check information, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying compressing mark corresponding to this group to the transmitting terminal of described Ethernet message；If the data in judgement group include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；If the data in judgement group include compressing mark, indicate the most different little section numbers and the data of trifle, then the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle is stored in described second decompression table.
To sum up, the present invention provides a kind of method and network element device compressing and conciliating compressed ethernet message, to save the expense of ethernet header, can improve the utilization rate of bandwidth of air-interface, save limited bandwidth of air-interface resource.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for the compressed ethernet message of the embodiment of the present invention；
Fig. 2 is the flow chart of the method decompressing Ethernet message of the embodiment of the present invention；
Fig. 3 is the flow chart of compression layer 2 heading of the embodiment of the present invention；
Fig. 4 is the flow chart of decompression layer 2 heading of the embodiment of the present invention；
Fig. 5 is the flow chart of compression layer 3 heading of the embodiment of the present invention；
Fig. 6 is the flow chart of decompression layer 3 heading of the embodiment of the present invention；
Fig. 7 is the schematic diagram of the network element device of the embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can mutual combination in any.
Intensification along with IPization trend, increasing business will be encapsulated into Ethernet message and be transmitted, but the expense of ethernet packet header is at least 38 bytes, when we are only concerned business when, this expense large percentage, therefore the present invention mainly proposes to be compressed Ethernet heading, to improve the utilization rate of bandwidth of air-interface, saves limited bandwidth of air-interface resource.And for this problem of compression of Ethernet data, in current microwave communication, the most not relevant solution.
Fig. 1 is the flow chart of the method for the compressed ethernet message of the embodiment of the present invention, as it is shown in figure 1, the method for the present embodiment comprises the following steps:
S11, reception Ethernet message；
S12, it is compressed processing to layer 2 heading of described Ethernet message and/or layer 3 heading.
Fig. 2 is the flow chart of the method decompressing Ethernet message of the embodiment of the present invention, as in figure 2 it is shown, the method for the present embodiment comprises the following steps:
S21, reception Ethernet message；
S22, layer 2 heading and/or layer 3 heading to described Ethernet message carry out decompression.
The processing method to Ethernet message that the embodiment of the present invention provides includes: compression and/or the compression of layer 3 heading to layer 2 heading, it is capable of identify that Vlan (VLAN) indicates, realize the compression of message and adaptive decompression, and there is error correcting capability, it is ensured that system normal operation.The present invention, by the compression to the Ethernet heading in business, reduces the data volume in transmission, thus reaches to save the purpose of bandwidth of air-interface.
For the compression of layer 2 heading, as it is shown on figure 3, comprise the following steps:
Step 2001: receive an IP message (i.e. Ethernet message), the data of described layer 2 heading are compared with the data in layer 2 compaction table；
Specifically, after receiving an IP message, open the compression of layer 2 heading, MAC (MediaAccessControl, media interviews control) head data and layer 2 compaction table of message are compared, identical then for hit, going to step 2002, difference then enters more new state, goes to step 2003.
Step 2002: replace the data of described layer 2 heading with compressing mark corresponding in layer 2 compaction table；
When arrive MAC heading and layer 2 compaction table in data consistent when, layer 2 enters compressive state, now layer 2 compressing mark corresponding with in layer 2 compaction table one is replaced whole layer 2 MAC part transmit in a link.
Step 2003: generate a compressing mark, the described Ethernet message of this compressing mark, and update step 2 compaction table are carried in transmission；
So, when receiving the data of layer 2 heading identical Ethernet message next time, it is possible to replace the data of described layer 2 heading with the compressing mark of this generation.
When the data in the MAC heading arrived and layer 2 compaction table are inconsistent when, layer 2 heading enters more new state, now generates a more new logo, before may be added to the MAC of layer 2 data, is then delivered to opposite end, and carries out the renewal of compaction table.
The decompression process of layer 2 heading, as shown in Figure 4, comprises the following steps:
Step 2010: first the network element device of decompressor end detects in identification Ethernet message whether there is layer 2 compressing mark, if not existing, then this Ethernet message is uncompressed message, goes to step 2020；If existing, identify it is compressive state message further, or update state message, if compressive state message, then go to step 2030；If renewal state message, then go to step 2040.
In the present embodiment, if network element device judges that the data of described layer 2 heading only include compressing mark, or only include compressing mark and check information, be then identified as compressive state message.
Step 2020: do transparent transmission for unpressed message and process.
Step 2030: for the message under compressive state, first identifies compressing mark, will take out corresponding layer 2MAC data according to this compressing mark, restore original message in decompression table.
Step 2040: for updating message, first decompressor end is taken out compressing mark, and restored original MAC data from message, then, proceed to step 2050.
Step 2050: enter and decompress table synchronized update state, the corresponding relation between compressing mark and the original layers 2MAC data restored is stored in decompression table, it is ensured that it is consistent that compaction table conciliates compaction table.
For layer 3 compression process, as it is shown in figure 5, comprise the following steps:
Step 3001: packet: after receiving a new Ethernet message, if identifying this Ethernet is layer 3 message, being then grouped the data of layer 3 heading of this message, follow-up compression process is the compression process to each group.
Step 3002: merogenesis: will often organize data subdividing is N trifle, and each trifle is exactly the minimum unit of message compression；
It is such as a joint with 16bit.
Step 3003: compression: compare with local layer 3 compaction table often organizing message data, be handled as follows respectively according to comparative result:
If the data of each trifle in group are the most consistent with the data in layer 3 compaction table, then replace the data of this group by the compressing mark that this group is corresponding；
If the data of the existence part trifle in group are inconsistent with the data in layer 3 compaction table, then replace the data of this group, and update step 3 compaction table by the data of the different little section number of compressing mark corresponding to this group, indicating section and trifle, then go to step 3004；
If the data of each trifle in group are the most inconsistent with the data in layer 3 compaction table, then join a compressing mark for this component, the data of this group are replaced with the data of this compressing mark, each little section number and each trifle, and update step 3 compaction table, so, when receiving the Ethernet message that in layer 3 heading, the data of corresponding group are identical, i.e. can replace the data of this group with the compressing mark of this distribution, then go to step 3004.
Step 3004: framing, the message after often organizing compression carries out framing, and such as, compressing mark is front, and after the different trifle in often group is added in message, sends out.
Compression for layer 3 message can also be grouped, and can directly a point trifle be compressed, as comprised the following steps:
Step 3011, the data of layer 3 heading of described Ethernet message are divided into multiple trifle；
Step 3012, the data of each trifle are compared with the data in layer 3 compaction table, are handled as follows respectively according to comparative result:
If the data of each trifle are the most consistent with the data in layer 3 compaction table, then replace the data of described layer 3 heading by corresponding compressing mark；If the data that there is part trifle are inconsistent with the data in layer 3 compaction table, then replace the data of described layer 3 heading, and update step 3 compaction table by the data of the different little section number of corresponding compressing mark, indicating section and trifle；If the data of each trifle are the most inconsistent with the data in layer 3 compaction table, it is then that each trifle distributes a compressing mark, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of described layer 3 heading, and update step 3 compaction table, so, when the Ethernet message that the data receiving layer 3 heading are identical, the data of described layer 3 heading can be replaced with the compressing mark of this distribution.
For the decompression flow process of layer 3 message (packet), as shown in Figure 6, comprise the following steps:
Step 3010: decompressor end network element device will parse layer 3 message and be common message, compressed packet or update message, and common message does transparent transmission and processes, and for compressed packet, goes to step 3020, goes to step 3030 to updating message；
In the present embodiment, if network element device judges that the data of described layer 3 heading only include compressing mark or only include compressing mark and check information or include the different little section number of compressing mark, indicating section and the data of trifle, then it is identified as compressed packet；If judging, the data of described layer 3 heading include compressing mark, indicate the most different little section numbers and the data of trifle, then be identified as updating message.
Step 3020: as follows to the decompression of compressed packet:
If if network element device judges the data of described layer 3 heading and only includes compressing mark, then decompress from layer 3 according to this compressing mark and table takes out corresponding data, restore the data of described layer 3 heading；
If judging, the data of described layer 3 heading only include compressing mark and check information, then decompress from layer 3 according to this compressing mark and take out corresponding data table, restore the data of described layer 3 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；
If judging, the data of described layer 3 heading include the different little section number of compressing mark, indicating section and the data of trifle, then decompress from layer 3 according to this compressing mark and table takes out corresponding data, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle.
Step 3030: the corresponding relation of the compressing mark in the data of layer 3 heading, the data indicating the most different little section numbers and trifle is stored in layer 3 decompression table, the message recovered is updated in local decompression table, keeps consistent with compaction table.
If being grouped such as above-mentioned Fig. 3 during compression, then carrying out extracting decompression by group, decomposition principle is similar with the decomposition principle of Fig. 6, specific as follows:
If judging, the data of described layer 3 heading include multi-group data, then decompress each data organized, including:
If the data in judgement group only include compressing mark, then decompress from layer 3 according to this compressing mark and table takes out corresponding data, restore the data of this group；
If the data in judgement group only include compressing mark and check information, then decompress from layer 3 according to this compressing mark and table takes out corresponding data, restore the data of this group；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying compressing mark corresponding to this group to the transmitting terminal of described Ethernet message；
If the data in judgement group include the different little section number of compressing mark, indicating section and the data of trifle, then decompress from layer 3 according to this compressing mark and table takes out corresponding data, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；
If the data in judgement group include compressing mark, indicate the most different little section numbers and the data of trifle, then the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle is stored in described layer 3 decompression table.
Use message compression method as above, can be while ensureing compression efficiency, ensure the application of normal message, actual network environment is complicated and changeable, single fixing message, the method that the present invention is stated can not be there is, be adapted to the network environment of reality, and in the case of resource occupation is few, it is ensured that good compression ratio；Particularly, the message being compressed processing to carry check information, or can have check information in each compressing mark, after decompression, message can be verified by decompressor end, if the check results of message decompression is inconsistent with check value, then enter process of feedback, as follows:
Step 4001: the network element device of decompressor end produces feedback message according to the order of feedback indicator head+compressing mark (or compression number), is sent to compression end with link.
Step 4002: the network element device Recognition feedback marking head of compression end, parses the compression number of response, and locally compressed table content corresponding for compressing mark is emptied.
In the compressibility of the embodiment of the present invention, can introduce the mechanism of a kind of feedback as above, this mechanism can ensure that decompressing mistake when, notifies compression end, reach compaction table and conciliate the purpose that compaction table is consistent, it is ensured that during long-play, compression function is correct.
In the present embodiment, network element device can configure and only be compressed layer 2 heading processing, it is also possible to be configured to only be compressed layer 3 heading processing, it is also possible to be configured to all be compressed processing to layer 2 heading and layer 3 heading.
Fig. 7 is the schematic diagram of the network element device of the embodiment of the present invention, as it is shown in fig. 7, the network element device of the present embodiment includes:
First module, is used for receiving Ethernet message；
Second module, for being compressed processing to layer 2 heading of described Ethernet message and/or layer 3 heading.
Wherein, described second module includes:
First module, for the data of described layer 2 heading being compared with the data in the first compaction table, if unanimously, then replaces the data of described layer 2 heading with compressing mark corresponding in described first compaction table；If it is inconsistent, then generating a compressing mark, transmission is carried the described Ethernet message of this compressing mark, and is updated described first compaction table, when the Ethernet message that the data receiving layer 2 heading are identical, replace the data of described layer 2 heading with the compressing mark of this generation.
Wherein, described second module can also include:
Second unit, transmits the described Ethernet message after described first module processes, and described Ethernet message carries check information.
In a preferred embodiment, described second module can also include:
Unit the 3rd, for the data of layer 3 heading of described Ethernet message are divided into multiple trifle, the data of each trifle are compared with the data in the second compaction table, if the data of each trifle are the most consistent with the data in described second compaction table, then replace the data of described layer 3 heading by corresponding compressing mark；If the data that there is part trifle are inconsistent with the data in described second compaction table, then replace the data of described layer 3 heading by the data of the different little section number of corresponding compressing mark, indicating section and trifle, and trigger updating block and update described second compaction table；If the data of each trifle are the most inconsistent with the data in described second compaction table, it is then that each trifle distributes a compressing mark, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of described layer 3 heading, and trigger updating block described second compaction table of renewal, when the Ethernet message that the data receiving layer 3 heading are identical, replace the data of described layer 3 heading with the compressing mark of this distribution.
Unit the 4th, for the data of layer 3 heading of described Ethernet message are divided into multiple groups, each group is divided into multiple trifle, the data of each trifle in each group are compared with the data in the second compaction table, if the data of each trifle in group are the most consistent with the data in described second compaction table, then replace the data of this group by the compressing mark that this group is corresponding；If the data of the existence part trifle in group are inconsistent with the data in described second compaction table, then replace the data of this group by the data of the inconsistent trifle of the inconsistent little section number of compressing mark corresponding to this group, data and data, and trigger updating block and update described second compaction table；If the data of each trifle in group are the most inconsistent with the data in described second compaction table, then join a compressing mark for this component, the data of this group are replaced with the data of this compressing mark, each little section number and each trifle, and trigger updating block described second compaction table of renewal, when receiving the Ethernet message that in layer 3 heading, the data of corresponding group are identical, replace the data of this group with the compressing mark of this distribution.
If data corresponding in described second compaction table inconsistent with the data in described second compaction table for there are the data of part trifle, are then replaced with the data of the inconsistent trifle of data by described updating block；If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule.
Wherein, described second module can also include:
Unit the 5th, the described Ethernet message after transmitting described Unit the 3rd or described 4th cell processing, described Ethernet message carries check information.
Wherein, described network element device can also include:
Three module, layer 2 heading and/or layer 3 heading to the Ethernet message received carry out decompression.
Wherein, described three module may include that
First module, if for judging that the data of described layer 2 heading only include compressing mark, then take out corresponding data according to this compressing mark, restore the data of described layer 2 heading from the first decompression table；If judging, the data of described layer 2 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；If judging the data of described layer 2 heading also include compressing mark, the data of the most described layer 2 heading take out this compressing mark, the corresponding relation of this compressing mark Yu the data of described layer 2 heading is stored in described first decompression table.
Second unit, if for judging that the data of described layer 3 heading only include compressing mark, then take out corresponding data according to this compressing mark, restore the data of described layer 3 heading from the second decompression table；If judging, the data of described layer 3 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；If judging, the data of described layer 3 heading include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；If judging, the data of described layer 3 heading include compressing mark, indicate the most different little section numbers and the data of trifle, then be stored in described second decompression table by the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle.
In a preferred embodiment, three module can also include:
Unit the 3rd, if judging, the data of described layer 3 heading include multi-group data, then trigger Unit the 4th and decompress each data organized；
Described Unit the 4th, if only including compressing mark specifically for the data in judgement group, then takes out corresponding data according to this compressing mark from the second decompression table, restores the data of this group；If the data in judgement group only include compressing mark and check information, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying compressing mark corresponding to this group to the transmitting terminal of described Ethernet message；If the data in judgement group include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；If the data in judgement group include compressing mark, indicate the most different little section numbers and the data of trifle, then the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle is stored in described second decompression table.
One of ordinary skill in the art will appreciate that all or part of step in said method can instruct related hardware by program and complete, described program can be stored in computer-readable recording medium, such as read only memory, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.The present invention is not restricted to the combination of the hardware and software of any particular form.
These are only the preferred embodiments of the present invention; certainly; the present invention also can have other various embodiments; in the case of without departing substantially from present invention spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and deformation according to the present invention, but these change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (15)
1. a method for compressed ethernet message, including:
Receive Ethernet message；
Layer 2 heading and/or layer 3 heading to described Ethernet message are compressed processing；
Wherein, described layer 3 heading to Ethernet message is compressed processing, including:
The data of layer 3 heading of described Ethernet message are divided into multiple trifle, the data of each trifle are compared with the data in the second compaction table,
If the data of each trifle are the most consistent with the data in described second compaction table, then replace the data of described layer 3 heading by corresponding compressing mark；
If the data that there is part trifle are inconsistent with the data in described second compaction table, then replace the data of described layer 3 heading by the data of the different little section number of corresponding compressing mark, indicating section and trifle, and update described second compaction table；
If the data of each trifle are the most inconsistent with the data in described second compaction table, it is then that each trifle distributes a compressing mark, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of described layer 3 heading, and update described second compaction table, when receiving the data of layer 3 heading identical Ethernet message next time, replace the data of described layer 3 heading with the compressing mark of this distribution；
Or,
The data of layer 3 heading of described Ethernet message are divided into multiple groups, each group are divided into multiple trifle, the data of each trifle in each group are compared with the data in the second compaction table,
If the data of each trifle in group are the most consistent with the data in described second compaction table, then replace the data of this group by the compressing mark that this group is corresponding；
If the data of the existence part trifle in group are inconsistent with the data in described second compaction table, then replace the data of this group by the data of the different little section number of compressing mark corresponding to this group, indicating section and trifle, and update described second compaction table；
If the data of each trifle in group are the most inconsistent with the data in described second compaction table, then join a compressing mark for this component, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of this group, and update described second compaction table, when receiving the Ethernet message that in layer 3 heading, the data of corresponding group are identical next time, replace the data of this group with the compressing mark of this distribution.
2. the method for claim 1, it is characterised in that: described layer 2 heading to Ethernet message is compressed processing, including:
The data of described layer 2 heading are compared with the data in the first compaction table,
If consistent, then replace the data of described layer 2 heading with compressing mark corresponding in described first compaction table；
If it is inconsistent, then generating a compressing mark, transmission is carried the described Ethernet message of this compressing mark, and is updated described first compaction table, when receiving the data of layer 2 heading identical Ethernet message next time, replace the data of described layer 2 heading with the compressing mark of this generation.
3. method as claimed in claim 2, it is characterised in that: after described layer 2 heading to Ethernet message is compressed processing, also include:
Described Ethernet message after transmission process, described Ethernet message carries check information.
4. the method for claim 1, it is characterised in that: update described second compaction table and include:
If the data that there is part trifle are inconsistent with the data in described second compaction table, then data corresponding in described second compaction table are replaced with the data of the inconsistent trifle of data；
If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule.
5. the method for claim 1, it is characterised in that: after described layer 3 heading to Ethernet message is compressed processing, also include:
Described Ethernet message after transmission process, described Ethernet message carries check information.
6. the method decompressing Ethernet message, including:
Receive Ethernet message；
Layer 2 heading and/or layer 3 heading to described Ethernet message carry out decompression；
Wherein, layer 3 heading of described Ethernet message is carried out decompression, including:
If judging, the data of described layer 3 heading only include compressing mark, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；
If judging, the data of described layer 3 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；
If judging, the data of described layer 3 heading include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；
If judging, the data of described layer 3 heading include compressing mark, indicate the most different little section numbers and the data of trifle, then be stored in described second decompression table by the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle；
Or,
If judging, the data of described layer 3 heading include multi-group data, then decompress each data organized, including:
If the data in judgement group only include compressing mark, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；
If the data in judgement group only include compressing mark and check information, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying compressing mark corresponding to this group to the transmitting terminal of described Ethernet message；
If the data in judgement group include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；
If the data in judgement group include compressing mark, indicate the most different little section numbers and the data of trifle, then the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle is stored in described second decompression table.
7. method as claimed in claim 6, it is characterised in that: layer 2 heading of described Ethernet message is carried out decompression, including:
If judging, the data of described layer 2 heading only include compressing mark, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；
If judging, the data of described layer 2 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；
If judging the data of described layer 2 heading also include compressing mark, the data of the most described layer 2 heading take out this compressing mark, the corresponding relation of this compressing mark Yu the data of described layer 2 heading is stored in described first decompression table.
8. a network element device, including:
First module, is used for receiving Ethernet message；
Second module, for being compressed processing to layer 2 heading of described Ethernet message and/or layer 3 heading；
Wherein, described second module includes:
Unit the 3rd, for the data of layer 3 heading of described Ethernet message are divided into multiple trifle, the data of each trifle are compared with the data in the second compaction table, if the data of each trifle are the most consistent with the data in described second compaction table, then replace the data of described layer 3 heading by corresponding compressing mark；If the data that there is part trifle are inconsistent with the data in described second compaction table, then replace the data of described layer 3 heading by the data of the different little section number of corresponding compressing mark, indicating section and trifle, and trigger updating block and update described second compaction table；If the data of each trifle are the most inconsistent with the data in described second compaction table, it is then that each trifle distributes a compressing mark, with this compressing mark, the data of the most different each little section numbers and each trifle are indicated to replace the data of described layer 3 heading, and trigger updating block described second compaction table of renewal, when the Ethernet message that the data receiving layer 3 heading are identical, replace the data of described layer 3 heading with the compressing mark of this distribution；
If data corresponding in described second compaction table inconsistent with the data in described second compaction table for there are the data of part trifle, are then replaced with the data of the inconsistent trifle of data by described updating block；If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule；
Or,
Described second module includes:
Unit the 4th, for the data of layer 3 heading of described Ethernet message are divided into multiple groups, each group is divided into multiple trifle, the data of each trifle in each group are compared with the data in the second compaction table, if the data of each trifle in group are the most consistent with the data in described second compaction table, then replace the data of this group by the compressing mark that this group is corresponding；If the data of the existence part trifle in group are inconsistent with the data in described second compaction table, then replace the data of this group by the data of the inconsistent trifle of the inconsistent little section number of compressing mark corresponding to this group, data and data, and trigger updating block and update described second compaction table；If the data of each trifle in group are the most inconsistent with the data in described second compaction table, then join a compressing mark for this component, the data of this group are replaced with the data of this compressing mark, each little section number and each trifle, and trigger updating block described second compaction table of renewal, when receiving the Ethernet message that in layer 3 heading, the data of corresponding group are identical, replace the data of this group with the compressing mark of this distribution；
If data corresponding in described second compaction table inconsistent with the data in described second compaction table for there are the data of part trifle, are then replaced with the data of the inconsistent trifle of data by updating block；If the data of each trifle are the most inconsistent with the data in described second compaction table, then the corresponding relation of the compressing mark of distribution Yu the data of each trifle it are directly added in described second compaction table or replace original data in described second compaction table with pre-defined rule.
9. network element device as claimed in claim 8, it is characterised in that: described second module includes:
First module, for the data of described layer 2 heading being compared with the data in the first compaction table, if unanimously, then replaces the data of described layer 2 heading with compressing mark corresponding in described first compaction table；If it is inconsistent, then generating a compressing mark, transmission is carried the described Ethernet message of this compressing mark, and is updated described first compaction table, when the Ethernet message that the data receiving layer 2 heading are identical, replace the data of described layer 2 heading with the compressing mark of this generation.
10. network element device as claimed in claim 9, it is characterised in that: described second module also includes:
Second unit, transmits the described Ethernet message after described first module processes, and described Ethernet message carries check information.
11. network element devices as claimed in claim 8, it is characterised in that: described second module also includes:
Unit the 5th, the described Ethernet message after transmitting described Unit the 3rd or described 4th cell processing, described Ethernet message carries check information.
12. network element devices as claimed in claim 8, it is characterised in that: described network element device also includes:
Three module, layer 2 heading and/or layer 3 heading to the Ethernet message received carry out decompression.
13. network element devices as claimed in claim 12, it is characterised in that: described three module includes:
First module, if for judging that the data of described layer 2 heading only include compressing mark, then take out corresponding data according to this compressing mark, restore the data of described layer 2 heading from the first decompression table；If judging, the data of described layer 2 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the first decompression table, restore the data of described layer 2 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；If judging the data of described layer 2 heading also include compressing mark, the data of the most described layer 2 heading take out this compressing mark, the corresponding relation of this compressing mark Yu the data of described layer 2 heading is stored in described first decompression table.
14. network element devices as claimed in claim 12, it is characterised in that: described three module includes:
Second unit, if for judging that the data of described layer 3 heading only include compressing mark, then take out corresponding data according to this compressing mark, restore the data of described layer 3 heading from the second decompression table；If judging, the data of described layer 3 heading only include compressing mark and check information, then take out corresponding data according to this compressing mark from the second decompression table, restore the data of described layer 3 heading；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying described compressing mark to the transmitting terminal of described Ethernet message；If judging, the data of described layer 3 heading include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；If judging, the data of described layer 3 heading include compressing mark, indicate the most different little section numbers and the data of trifle, then be stored in described second decompression table by the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle.
15. network element devices as claimed in claim 12, it is characterised in that: described three module includes:
Unit the 3rd, if judging, the data of described layer 3 heading include multi-group data, then trigger Unit the 4th and decompress each data organized；
Described Unit the 4th, if only including compressing mark specifically for the data in judgement group, then takes out corresponding data according to this compressing mark from the second decompression table, restores the data of this group；If the data in judgement group only include compressing mark and check information, then from the second decompression table, take out corresponding data according to this compressing mark, restore the data of this group；Then according to described check information, the data restored are verified, if check results is wrong, then return the feedback message carrying compressing mark corresponding to this group to the transmitting terminal of described Ethernet message；If the data in judgement group include the different little section number of compressing mark, indicating section and the data of trifle, then from the second decompression table, take out corresponding data according to this compressing mark, data corresponding with this little section number in the data of taking-up are replaced with the data of this trifle；If the data in judgement group include compressing mark, indicate the most different little section numbers and the data of trifle, then the corresponding relation of this compressing mark, the data indicating the most different little section numbers and trifle is stored in described second decompression table.
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| CN110958646B (en) * | 2018-09-27 | 2023-03-31 | 华为技术有限公司 | Communication method and device |
| CN111385268B (en) * | 2018-12-29 | 2023-02-24 | 大唐移动通信设备有限公司 | Data packet header compression confirmation method and communication equipment |
| EP3905626B1 (en) | 2019-03-29 | 2022-12-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Compression processing method, decompression processing method and related devices |
| CN111800371B (en) * | 2019-07-05 | 2022-10-28 | 维沃移动通信有限公司 | Data processing method, sending end and receiving end |
| CN110417814A (en) * | 2019-08-27 | 2019-11-05 | 京信通信系统（中国）有限公司 | Air interface transmission processing method, device and the communication equipment of message |
| CN111107051A (en) * | 2019-11-01 | 2020-05-05 | 京信通信系统（中国）有限公司 | Message transmission method and device, computer equipment and storage medium |
| CN111711968B (en) * | 2020-06-10 | 2022-02-01 | 京信网络系统股份有限公司 | Message processing method, device, communication equipment and communication system |
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