CN103179094B - Sending, receiving method, sending device and the reception device of IP packet head - Google Patents
Sending, receiving method, sending device and the reception device of IP packet head Download PDFInfo
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Abstract
The present invention provides sending, receiving method, sending device and the reception devices of a kind of IP packet head, wherein above-mentioned sending method includes: to be grouped to sent IP packet head；Each group IP packet head after grouping is compressed respectively and is grouped and sends the compressed IP packet head.Using above-mentioned technical proposal provided by the invention, it solves in the related technology, due to not leading to problems such as bandwidth of air-interface utilization rate lower the technical solution that Ethernet heading is compressed in microwave communication, and then reach the data volume reduced in transmission, improves the effect of bandwidth availability ratio.
Description
Technical field
The present invention relates to the communications fields, in particular to sending, receiving method, the sending device of a kind of IP packet head
And reception device.
Background technique
As one of the main means of modern communications transmission, microwave communication is capable of providing powerful business transmittability, by
Have the characteristics that transmission capacity is big, long distance transmission quality stabilization, small investment, at low cost, the construction period is short, easy to maintain in it,
Just it is being widely used in the mobile bearer network of 2G/3G, is becoming the important selection of mobile operator transmission voice-and-data business.By
In its point-to-point transmission feature, microwave communication also between base station and base station (as shown in Figure 1), base station and base station control station with
And it is transmitted between access gateway as backbone network.
Common microwave communication node is generally employed in pairs, and each website generally comprises modem module and transmitting is single
Member.As shown in Fig. 2, it is commonly referred to as indoor unit (IndoorUnit, referred to as IDU) that modem module, which is generally put in indoor,；
Rf transmitter unit is generally placed on steel tower together with antenna, referred to as outdoor unit (OutdoorUnit, referred to as ODU).With
The development of mobile communication, the business transmitted in network also become more diverse, either time division multiplexing (Time Division
Multiplex, referred to as TDM) business, E1 business or traditional Ethernet data business, all will in IDU framing, then
It is sent by eating dishes without rice or wine.Along with the development of technology, the demand of bandwidth of air-interface increasingly increases, and how to save limited band of eating dishes without rice or wine
Width becomes increasingly important
But with the intensification of IPization trend, more and more business will be encapsulated into ether network packet and transmit, due to
The expense of Ethernet heading is at least 38 bytes, when we are only concerned business, this expense large percentage, therefore
Ethernet heading is compressed, the utilization rate of bandwidth of air-interface is improved, saving limited bandwidth of air-interface resource becomes increasingly to weigh
It wants.And there is no the technical solutions compressed to Ethernet heading in current microwave communication.
Summary of the invention
For in the related technology, due in microwave communication there is no to the technical solution that Ethernet heading is compressed and
Lead to problems such as bandwidth of air-interface utilization rate lower, the present invention provides sending, receiving method, the sending devices of a kind of IP packet head
And reception device, at least one to solve the above problems.
According to an aspect of the invention, there is provided a kind of sending method of IP packet head, comprising: reported to sent IP
Literary head is grouped；Each group IP packet head after grouping is compressed respectively and is grouped and sends the compressed IP packet
Head.
The above-mentioned each group IP packet head to after grouping, which is compressed respectively and is grouped, sends the compressed IP packet head,
It include: that compressing mark corresponding with each group of IP packet is obtained from compaction table, wherein the compressing mark is for making to receive
End can restore the received compressed each group of IP packet head by the compaction table；Send the compression mark
Know.
Above-mentioned compressing mark include: in the compaction table message data corresponding with each group of IP packet described
Information in compaction table.
When message data difference corresponding with one group of IP packet in each group IP packet head in the compaction table,
It includes: to be grouped again to this group of IP packet head that compressing mark corresponding with this group of IP packet is then obtained from compaction table；
The every group of heading data obtained after being grouped again are compared with the message data of corresponding position in the compaction table, are obtained
The different information of the message data of corresponding position in every group of heading data and the compaction table after being grouped again, as described
Compressing mark；
Above-mentioned different information includes: every group of heading data after the grouping again and corresponding position in the compaction table
The discrepant data cell of message data number and location information.
It is above-mentioned each group of IP packet head is grouped again after obtain each group of data grouping sequentially enter compressing mark
Window.
When identical as the corresponding message data of one group of IP packet in each group IP packet head in the compaction table,
Then from obtained in compaction table corresponding with each group of IP packet compressing mark include: by the compaction table with described each group
Location information where the corresponding message data of IP packet is as the compressing mark.
According to a further aspect of the invention, a kind of method of reseptance of IP packet head is provided, comprising: grouping is received and come from
In the heading data of transmitting terminal, wherein the received heading data are to carry out compressed message in transmitting terminal grouping
Head data；The received heading data grouping is unziped it.
The above-mentioned received heading data are compressing mark, and the compressing mark is for enabling receiving end to pass through pressure
Contracting table restores received compressed each group of IP packet head；The received heading data grouping is decompressed
Contracting, comprising: the received heading data from transmitting terminal are unziped it according to the compressing mark.
According to another aspect of the invention, a kind of sending device of IP packet head is provided, comprising: grouping module is used for
It is grouped to sent IP packet head；Compression module, for being compressed respectively to each group IP packet head after grouping；Hair
Module is sent, sends the compressed IP packet head of compression module for being grouped.
Above-mentioned compression module, for obtaining compressing mark corresponding with each group of IP packet from compaction table, wherein institute
State compressing mark for enable receiving end by the compaction table to the received compressed each group of IP packet head into
Row reduction；Above-mentioned sending module, for sending the compressing mark.
According to another aspect of the invention, a kind of reception device of IP packet head is provided, comprising: receiving module is used for
Grouping receives the heading data from transmitting terminal, wherein the received heading data are to be grouped to carry out in transmitting terminal
Compressed heading data；Decompression module, for being unziped it to the received heading data grouping.
The above-mentioned received heading data of receiving module are compressing mark, and the compressing mark is for enabling receiving end
Enough received compressed each group of IP packet head is restored by compaction table；Above-mentioned decompression module, for according to institute
Compressing mark is stated to unzip it the received heading data from transmitting terminal.
Through the invention, the technological means compressed is grouped using the heading to sent message, solves phase
In the technology of pass, since there is no cause bandwidth of air-interface sharp to the technical solution that Ethernet heading is compressed in microwave communication
The problems such as lower with rate, and then reached the data volume reduced in transmission, improve the effect of bandwidth availability ratio.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the microwave communication application scenarios schematic diagram according to the relevant technologies；
Fig. 2 is the application scenarios schematic diagram according to the relevant technologies ODU and IDU；
Fig. 3 is the sending method flow diagram according to the IP packet head of the embodiment of the present invention；
Fig. 4 is the method for reseptance flow diagram according to the IP packet head of the embodiment of the present invention；
Fig. 5 is the sending device structural block diagram according to the IP packet head of the embodiment of the present invention；
Fig. 6 is the reception device structural block diagram according to the IP packet head of the embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
Fig. 3 is the sending method flow diagram according to the IP packet head of the embodiment of the present invention.As shown in Figure 1, this method
Include:
Step S302 is grouped to sent IP packet head；
Step S304 compresses each group IP packet head after grouping respectively and is grouped the compressed IP report of transmission
Literary head.
By above-mentioned processing step, since the heading grouping to sent message is compressed, reduce
The data volume of transmission saves bandwidth of air-interface resource, improves bandwidth availability ratio.
In step s 304, in the present embodiment, above-mentioned heading is compressed using following methods, i.e., only only maintained
One compressing mark, it is specific as follows: compressing mark corresponding with each group of IP packet to be obtained from compaction table, wherein described
Compressing mark is for enabling receiving end to carry out by the compaction table to the received compressed each group of IP packet head
Reduction；Send the compressing mark.
In a preferred embodiment of the present invention, above-mentioned compressing mark include: in the compaction table with it is described every
Information of the corresponding message data of one group of IP packet in the compaction table, such as location information etc. connect in this case
Receiving end can be inquired from the compaction table of receiving end according to above-mentioned location information obtain in compaction table with each group of IP packet head
Corresponding message data, and operation is unziped it according to the message data that inquiry obtains.
When message data difference corresponding with one group of IP packet in each group IP packet head in the compaction table,
Above-mentioned compressing mark can obtain in the following manner: be grouped again to this group of IP packet head；It is obtained after being grouped again
Every group of heading data be compared with the message data of corresponding position in the compaction table, every group after being grouped again
The message data different information of corresponding position is as the compressing mark in heading data and the compaction table.In this way,
Above-mentioned different information is only transmitted to decompressor end, message data is restored according to different information by decompressor end.
When identical as the corresponding message data of one group of IP packet in each group IP packet head in the compaction table,
Then above-mentioned compressing mark can obtain in the following manner: by report corresponding with each group of IP packet in the compaction table
Location information where literary data is as the compressing mark.
In a preferred embodiment of the present invention, a compressing mark window can be safeguarded, specifically, to each group of IP
The each group of data grouping that heading obtains after being grouped again sequentially enters compressing mark window.
Corresponding with the sending method of IP packet head in above-described embodiment, the present embodiment provides a kind of connecing for IP packet head
Receiving method.Fig. 4 is the method for reseptance flow diagram according to the IP packet head of the embodiment of the present invention.As shown in figure 4, this method packet
It includes:
Step S402, grouping receive the heading data from transmitting terminal, wherein the received heading data are
Compressed heading data are carried out in transmitting terminal grouping；
Step S404 unzips it the received heading data grouping.
Preferably, the above-mentioned received heading data are compressing mark, and the compressing mark is for enabling receiving end
Enough received compressed each group of IP packet head is restored by compaction table；It in a preferred implementation process, can basis
Above-mentioned compressing mark unzips it the received heading data grouping.
Additionally provide the sending device and reception device of a kind of IP packet head in the present embodiment, above-mentioned apparatus for realizing
Above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated, below to be related in device module carry out
Explanation.As used below, the combination of the software and/or hardware of predetermined function may be implemented in term " module ".Although following
Device described in embodiment is preferably realized with hardware, but the combined realization of software or software and hardware is also
It may and be contemplated.Fig. 5 is the sending device structural block diagram according to the IP packet head of the embodiment of the present invention.As shown in figure 5, should
Device includes:
Grouping module 50 is connected to compression module 52, for being grouped to sent IP packet head；
Compression module 52 is connected to sending module 54, for compressing respectively to each group IP packet head after grouping；
Sending module 54 sends the compressed IP packet head of compression module 52 for being grouped.
In a preferred embodiment of the present invention, above-mentioned compression module 52, for from compaction table obtain with it is each
The corresponding compressing mark of group IP packet, wherein the compressing mark is for enabling receiving end to dock by the compaction table
The compressed each group of IP packet head received is restored；Above-mentioned sending module 54, for sending the compressing mark.
Corresponding with above-mentioned sending device, the present embodiment also provides a kind of reception device of IP packet head, as shown in fig. 6,
The device includes:
Receiving module 60 is connected to decompression module 62, for being grouped the heading data received from transmitting terminal,
In, the received heading data are to carry out compressed heading data in transmitting terminal grouping；
Decompression module 62, for being unziped it to the received heading data grouping.
Preferably, the received heading data of above-mentioned receiving module 60 are compressing mark, and the compressing mark is used for
Receiving end is set to restore by compaction table to received compressed each group of IP packet head；Above-mentioned decompression module
62, for being unziped it according to the compressing mark to the received heading data from transmitting terminal.
Above-described embodiment in order to better understand is described in detail below in conjunction with relevant drawings and specific embodiment.
Embodiment 1
The present embodiment is related to the compression of the Ethernet heading during microwave communication, decompression and transmission.The present embodiment
Purpose is, by the compression to the Ethernet heading in business, reduces the data volume in transmission, to save band of eating dishes without rice or wine
It is wide.
In order to achieve the above objectives, technical solution used by the present embodiment is as follows:
It by IP packet header packet, and carries out drawing window operation, i.e., by 3 packet of layer, is compressed according to each group.
Specifically, above-mentioned compression/de-compression process is as follows:
In compression end
Step 1, it when 3 message of layer enters compression section, can be broken into a compression unit, with compaction table first
Data carry out logical operation.Wherein, result can represent each compression unit and the corresponding message data in compaction table
In various degree, specific as follows:
In the present embodiment, a compressing mark window is safeguarded.When new IP packet is come, by the heading of IP packet
IP packet head corresponding with (can be understood as in compaction table) compressing mark in window carries out logical operation, obtains different information.
In window in all operation results, with the minimum principle of difference, compressing mark is generated.One is arbitrarily taken if the same
It is a.
Step 2, compressive state, in the state of compression, can take out compression number in compaction table and in compaction table with message
Discrepant message data information is transmitted, and the purpose done so is ensuring that the efficiency of compression, if the complete phase of heading
Together, then a compression number corresponding with the heading is transmitted.Above-mentioned compression number contains the different information of message.In order to compared with
Understand above-described embodiment well, illustrates above-mentioned compression process below in conjunction with table 1- table 3.
Be shown in table 1 it is uncompressed before message format, in table 1, " type of message " is used to indicate ether network packet
Type, such as IPv4 or IPv6 etc..
The normal message format of table 1
| The head ETH | Type of message | Heading | Other protocol headers: UDP etc. | Payload |
Table 2, which is shown, is being grouped compressed data format to heading data, in table 2, the heading after grouping
Data show as self-existent every group of heading data after grouping in the specific implementation, can be divided into 2 groups, 3 groups, 4 groups etc..
2 compressed packet format of table
In decompressor end
Step 1, after the message for receiving layer 3, judge whether the message received is compressed packet (i.e. by above-mentioned compression side pressure
Contract obtained message), if uncompressed, then transparent transmission, is otherwise decompressed.
Step 2, decompression procedure: will be from the message in the data corresponding with compressing mark taken out in compaction table and compaction table
Data carry out framing after the message data after logical operation is decompressed.
Compared with prior art, the present embodiment proposes a kind of new compression method to 3 message of layer, can be effective
, simple compressed IP V4/IPV6 message, compression efficiency is high, realizes that simply high reliablity can significantly save band of eating dishes without rice or wine
It is wide.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of sending method of IP packet head characterized by comprising
It is grouped to sent an IP packet head；
Each group IP packet head after grouping is compressed respectively and is grouped and sends the compressed IP packet head；
Wherein, each group IP packet head after grouping is compressed respectively and is grouped and send the compressed IP packet head, packet
It includes: obtaining compressing mark corresponding with each group of IP packet from compaction table, wherein the compressing mark is for making receiving end
The received compressed each group of IP packet head can be restored by the compaction table；Send the compression mark
Know；
The compressing mark include: in the compaction table message data corresponding with each group of IP packet in the compression
Information in table；
When message data difference corresponding with one group of IP packet in each group IP packet head in the compaction table, then from
Compressing mark corresponding with this group of IP packet is obtained in compaction table includes:
This group of IP packet head is grouped again；
The every group of heading data obtained after being grouped again are compared with the message data of corresponding position in the compaction table,
The different information of the message data of corresponding position in every group of heading data and the compaction table after being grouped again, as
The compressing mark.
2. the method according to claim 1, wherein the different information include: it is described be grouped again after it is every
The number and location information of the discrepant data cell of message data of corresponding position in group heading data and the compaction table.
3. the method according to claim 1, wherein obtaining after being grouped again to each group of IP packet head
Each group of data grouping sequentially enters compressing mark window.
4. the method according to claim 1, wherein when in the compaction table and in each group IP packet head
When the corresponding message data of one group of IP packet is identical, then compression mark corresponding with each group of IP packet is obtained from compaction table
Knowledge includes:
Using the location information where message data corresponding with each group of IP packet in the compaction table as the pressure
Contracting mark.
5. a kind of method of reseptance of IP packet head characterized by comprising
Grouping receives the heading data from transmitting terminal, wherein the received heading data are will be in transmitting terminal
The IP packet head sent is grouped and carries out compressed heading data respectively to each group IP packet head after grouping；
Wherein, to each group IP packet head after grouping respectively carry out compression include: from compaction table obtain it is right with each group of IP packet
The compressing mark answered, when message data corresponding with one group of IP packet in each group IP packet head in the compaction table not
Meanwhile compressing mark corresponding with this group of IP packet is then obtained from the compaction table and includes:
This group of IP packet head is grouped again；
The every group of heading data obtained after being grouped again are compared with the message data of corresponding position in the compaction table,
The different information of the message data of corresponding position in every group of heading data and the compaction table after being grouped again, as
The compressing mark；
The received heading data grouping is unziped it；
Wherein, the received heading data are compressing mark, and the compressing mark is for enabling receiving end to pass through compression
Table restores received compressed each group of IP packet head；
The compressing mark include: in the compaction table message data corresponding with each group of IP packet in the compression
Information in table.
6. according to the method described in claim 5, it is characterized in that, being decompressed to the received heading data grouping
Contracting, comprising:
The received heading data from transmitting terminal are unziped it according to the compressing mark.
7. a kind of sending device of IP packet head characterized by comprising
Grouping module, for being grouped to sent an IP packet head；
Compression module, for being compressed respectively to each group IP packet head after grouping；
Sending module sends the compressed IP packet head of compression module for being grouped；
Wherein, the compression module, for obtaining compressing mark corresponding with each group of IP packet from compaction table, wherein
The compressing mark is for enabling receiving end by the compaction table to the received compressed each group of IP packet head
It is restored；The sending module, for sending the compressing mark
The compressing mark include: in the compaction table message data corresponding with each group of IP packet in the compression
Information in table；
When message data difference corresponding with one group of IP packet in each group IP packet head in the compaction table, then from
Compressing mark corresponding with this group of IP packet is obtained in compaction table includes:
This group of IP packet head is grouped again；
The every group of heading data obtained after being grouped again are compared with the message data of corresponding position in the compaction table,
The different information of the message data of corresponding position in every group of heading data and the compaction table after being grouped again, as
The compressing mark.
8. a kind of reception device of IP packet head characterized by comprising
Receiving module, for being grouped the heading data received from transmitting terminal, wherein the received heading data are
After an IP packet head to be sent is grouped by transmitting terminal and is compressed respectively to each group IP packet head after grouping
Heading data；Wherein, to each group IP packet head after grouping respectively carry out compression include: from compaction table obtain with it is each
The corresponding compressing mark of group IP packet, when corresponding with one group of IP packet head in each group IP packet head in the compaction table
Message data difference when, then corresponding with this group of IP packet compressing mark is obtained from the compaction table includes:
This group of IP packet head is grouped again；
The every group of heading data obtained after being grouped again are compared with the message data of corresponding position in the compaction table,
The different information of the message data of corresponding position in every group of heading data and the compaction table after being grouped again, as
The compressing mark；
Decompression module, for being unziped it to the received heading data grouping；
Wherein, the received heading data of the receiving module are compressing mark, and the compressing mark is for making receiving end
Received compressed each group of IP packet head can be restored by compaction table；
The compressing mark include: in the compaction table message data corresponding with each group of IP packet in the compression
Information in table.
9. device according to claim 8, which is characterized in that
The decompression module, for being solved according to the compressing mark to the received heading data from transmitting terminal
Compression.
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| CN108696492B (en) * | 2017-04-12 | 2020-12-22 | 联芯科技有限公司 | Method and device for processing IP message |
| CN109818901B (en) * | 2017-11-20 | 2021-04-20 | 华为技术有限公司 | Method, device and system for determining message header compression mechanism |
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| US20020095513A1 (en) * | 2001-01-16 | 2002-07-18 | Freddie Lin | Multilayer lossless data compression across a network |
| JP4336792B2 (en) * | 2003-03-13 | 2009-09-30 | 日本電気株式会社 | Packet transmission method and radio access network |
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| WO2000044116A1 (en) * | 1999-01-26 | 2000-07-27 | Net2Phone, Inc. | Improving voice ip bandwidth utilization |
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