CN109756466A - Shared data transmission agreement SDTP method for message transmission and the network equipment - Google Patents
Shared data transmission agreement SDTP method for message transmission and the network equipment Download PDFInfo
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Abstract
The present invention provides a kind of shared data transmission agreement SDTP method for message transmission and the network equipments, are applied to source node, method includes: to obtain at least two fragment packets of original signaling to be transmitted；According at least two fragment packets, shared data transmission agreement SDTP message to be transmitted is generated；Wherein, SDTP message includes: the backpack body of the packet header of fragment packets and each fragment packets at least two fragment packets；SDTP message is sent to destination node.The present invention is fragment signaling in original signaling to be transmitted, when i.e. original signaling includes at least two fragment packets, the backpack body in the packet header of fragment packets at least two fragment packets and each fragment packets is encapsulated in a SDTP message to be transmitted and is sent to destination node, packet header is carried without each fragment packets in this way, the transmission bandwidth that SDTP message can be saved improves the utilization rate of network transmission bandwidth.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of shared data transmission agreement SDTP method for message transmission and
The network equipment.
Background technique
Existing mobile communication system planning is the framework thought based on functional stratification, as shown in Figure 1, existing system has
Body is responsible for acquiring all correlations from core net by uniform depth packet check (Deep Packet Inspection, DPI) system
Interface data, then by synthesis module carry out data verification, backfill and synthesis, finally by shared data transmission agreement
Data are reported to application system or received by the IF2 interface in (Shared Data Transfer Protocol, SDTP) to be applied
The reverse data of system is inquired.Wherein, IF2 interface is the sole criterion approach of application system Yu DPI system interaction, a province
Generally there was only a set of DPI system, this DPI system can dock multiple application systems, and IF2 interface will efficiently improve application system
Value, also can further embody the value of DPI system.
Specifically, as shown in Fig. 2, SDTP protocol stack is divided into: bearing bed, transport layer and application layer.Wherein, bearing bed IP
Layer, is mainly used for providing reliable data transmission channel.Transport layer includes: transmission control protocol (Transmission
Control Protocol, TCP) layer and SDTP layers, it is mainly used for providing general Data Transport Protocol for upper layer application.Using
(Application, APP) layer is mainly used for package outside data (External Data Representation, XDR) or original
Beginning signaling code stream.
Wherein, as shown in table 1, the original signaling of following message type transfers can be used in SDTP message:
Table 1
Further, a SDTP message can carry multiple original signalings, can also only carry an original signaling,
The general packet header SDTP carries the link information and timestamp in practical packet capturing network, wherein when SDTP transmits original signaling
Message format, such as the corresponding message format of 0x8006 are as shown in table 2:
Table 2
Original signaling code stream is transmitted based on existing SDTP agreement, is IP packet fragmentation packet in the network packet that DPI system acquisition arrives
When, the general packet header SDTP, Ethernet, IP, TCP header etc. calculate are as follows: 14+14+20+20=according to the most common situation
68Bytes.Letter is requested for the session initiation protocol (Session Initiation Protocol, SIP) of three fragment
It enables, these heads need to repeat transmission 3 times, to waste 2*68Bytes=126Bytes.And a SIP call establishment, it is corresponding
Source code flow may to have 2 to 3 message (such as: Invite, 180,183, Update, 200) be fragment, that is to say, that it is primary
SIP calling will waste the bandwidth of about 400Bytes in the corresponding source code signaling flow in the collection point of an interface.Assuming that one
There is 20,000,000 super voice long term evolution (Voice over Long Term Evolution, VoLTE) user in province, daily
Calling ticket amount is probably 2,000,000,000,000 (multiplex roles), and the bandwidth of waste is about 80G, when DPI system needs to answer to multiple simultaneously
When transmitting original signaling with system, this bandwidth waste can increase at double.Therefore, DPI system acquisition to network packet be
When IP packet fragmentation packet, the efficiency of agreement is relatively low, wherein the general packet header SDTP and original signaling itself Ethernet, IP,
TPC/UDP/SCTP head, even virtual LAN (Virtual Local Area Network, VLAN) marking head and
The package safety load of Internet protocol safety (Internet Protocol Security, IPSec)
The head (Encapsulate Security Payload, ESP) can repeat to transmit, there are bulk redundancy, cause network bandwidth and
The waste of computing resource.
Summary of the invention
The present invention provides a kind of shared data transmission agreement SDTP method for message transmission and the network equipment, solves traditional
The problem of network bandwidth and computing resource waste in SDTP protocol signaling transmission process.
The embodiment of the present invention provides a kind of shared data transmission agreement SDTP method for message transmission, is applied to source node,
Include:
Obtain at least two fragment packets of original signaling to be transmitted；
According at least two fragment packets, shared data transmission agreement SDTP message to be transmitted is generated；Wherein, SDTP message
It include: the backpack body of the packet header of fragment packets and each fragment packets at least two fragment packets；
SDTP message is sent to destination node.
Wherein, packet header includes: the general head of SDTP, Ethernet Ethernet, IP and TCP header.
Wherein, SDTP message includes: SDTP message header and SDTP message body, and SDTP message body includes: at least two fragments
The backpack body of the packet header of fragment packets and each fragment packets in packet.
Wherein, according at least two fragment packets, the step of generating shared data transmission agreement SDTP message to be transmitted, packet
It includes:
The backpack body of first fragment packets in packet header and at least two fragment packets is encapsulated as first source code flow frame；
Successively other fragment backpack bodies at least two fragment packets are packaged according to preset order, are generated to be transmitted
SDTP message；Wherein, other fragment packets are the fragment packets at least two fragment packets in addition to first fragment packets.
Wherein, according at least two fragment packets, the step of generating shared data transmission agreement SDTP message to be transmitted, also
Include:
According at least two fragment packets, segmental identification information is determined；Wherein, segmental identification information is used to indicate original signaling
For fragment signaling；
By segmental identification Information encapsulation in SDTP message.
The embodiment of the invention also provides a kind of network equipments, are applied to source node, comprising:
Module is obtained, for obtaining at least two fragment packets of original signaling to be transmitted；
Generation module, for generating shared data transmission agreement SDTP message to be transmitted according at least two fragment packets；
Wherein, SDTP message includes: the backpack body of the packet header of fragment packets and each fragment packets at least two fragment packets；
Sending module, for SDTP message to be sent to destination node.
Wherein, packet header includes: the general head of SDTP, Ethernet Ethernet, IP and TCP header.
Wherein, SDTP message includes: SDTP message header and SDTP message body, and SDTP message body includes: at least two fragments
The backpack body of the packet header of fragment packets and each fragment packets in packet.
Wherein, generation module includes:
First encapsulation unit, for the backpack body of first fragment packets in packet header and at least two fragment packets to be encapsulated as
One source code flow frame；
Second encapsulation unit, for successively being carried out to other fragment backpack bodies at least two fragment packets according to preset order
Encapsulation, generates SDTP message to be transmitted；Wherein, other fragment packets be at least two fragment packets in addition to first fragment packets
Fragment packets.
Wherein, generation module further include:
Determination unit, for determining segmental identification information according at least two fragment packets；Wherein, segmental identification information is used
In indicating that original signaling is fragment signaling；
Third encapsulation unit is used for segmental identification Information encapsulation in SDTP message.
The embodiment of the invention also provides a kind of network equipment, the network equipment includes processor, memory and is stored in
On memory and the computer program that can run on a processor, processor realize above-mentioned shared number when executing computer program
According to the step in transport protocol SDTP method for message transmission.
The embodiment of the invention also provides a kind of computer readable storage medium, it is stored on computer readable storage medium
Computer program realizes above-mentioned shared data transmission agreement SDTP method for message transmission when computer program is executed by processor
The step of.
The beneficial effect of above-mentioned technical proposal of the invention is: when original signaling to be transmitted is fragment signaling, i.e., original letter
It enables when including at least two fragment packets, by the packet header of fragment packets at least two fragment packets and the backpack body of each fragment packets
It is encapsulated in a SDTP message to be transmitted and is sent to destination node, carry packet header without each fragment packets in this way, can save
The transmission bandwidth of SDTP message improves the utilization rate of network transmission bandwidth.
Detailed description of the invention
Fig. 1 shows the networking relation schematic diagrams between application system, DPI system, VoLTE network；
The interface diagram of original signaling transfer protocol stack of Fig. 2 expression based on SDTP；
Fig. 3 indicates the flow diagram of SDTP method for message transmission in the embodiment of the present invention；
Fig. 4 indicates the module diagram of the network equipment of the embodiment of the present invention；
The network equipment block diagram of Fig. 5 expression embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.In the following description, such as specific configuration is provided and the specific detail of component is only
In order to help comprehensive understanding the embodiment of the present invention.It therefore, it will be apparent to those skilled in the art that can be to reality described herein
Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, it is omitted pair
The description of known function and construction.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be appreciated that the size of the serial number of following each processes is not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
In addition, the terms " system " and " network " are often used interchangeably herein.
In embodiment provided herein, it should be appreciated that " B corresponding with A " indicates that B is associated with A, can be with according to A
Determine B.It is also to be understood that determine that B is not meant to determine B only according to A according to A, it can also be according to A and/or other information
Determine B.
As shown in figure 3, being answered the embodiment provides a kind of shared data transmission agreement SDTP method for message transmission
For source node, specifically includes the following steps:
Step 31: obtaining at least two fragment packets of original signaling to be transmitted.
It here is to say, when original signaling to be transmitted is fragment signaling, original signaling includes at least two fragment packets.
Step 32: according at least two fragment packets, generating shared data transmission agreement SDTP message to be transmitted.
Wherein, SDTP message includes: the packet of the packet header of fragment packets and each fragment packets at least two fragment packets
Body.Since SDTP message can carry an original signaling, multiple original signalings can also be carried.For carrying an original letter
When enabling, when especially carrying a fragment signaling, source node can generate one according at least two fragment packets in fragment signaling
SDTP message.In order to improve efficiency of transmission, the mode that at least two fragment packets are multiplexed to same packet header can be used, to reduce SDTP
The data volume of message.For example, for the signaling of three fragment packets, it is assumed that the packet header of single fragment packets is 68 bytes (bytes),
It needs to send three times if the packet header of each fragment repeats to send, i.e. 68*3=204 byte.It is incited somebody to action using in the embodiment of the present invention
Three fragment packets are multiplexed the mode in same packet header, then only need to send packet header once, i.e. 68 bytes can save 68*2=136 in this way
Byte.
Step 33: SDTP message is sent to destination node.
The SDTP message of generation is sent to destination node, to realize the interaction of SDTP message.Wherein it is worth noting that,
Source node and destination node are network node, and identity can be interchanged, that is to say, that when first network node is to the second network
When node sends SDTP message, first network node is source node, and the second network node is destination node；When the second network node
When sending SDTP message to first network node, first network node is destination node, and the second network node is source node.
Wherein, the packet header of above-mentioned fragment packets includes: the general head of SDTP, Ethernet Ethernet, IP and TCP header.
Further, above-mentioned SDTP message includes: SDTP message header (Message header) and SDTP message body
(Message body), SDTP message body include: the packet header of fragment packets and each fragment packets at least two fragment packets
Backpack body.Wherein, the packet header of fragment packets includes: the general head of SDTP, Ethernet Ethernet, IP and TCP header.Fragment packets
Backpack body includes the data carried in fragment packets, such as SIP, Diameter layer message.
Wherein, above-mentioned steps 32 can specifically be realized by following steps: by first in packet header and at least two fragment packets
The backpack body of a fragment packets is encapsulated as first source code flow frame；According to preset order successively to other at least two fragment packets
Fragment backpack body is packaged, and generates SDTP message to be transmitted.Wherein, other fragment packets are that first is removed at least two fragment packets
Fragment packets except a fragment packets.That is, when original signaling to be transmitted includes at least two fragment packets, multiplexing first
The general head of the SDTP of a fragment, Ethernet, IP and TCP header, successive fragment packet no longer transmits these packet header, to avoid net
The waste of network bandwidth.
Further, in order to further avoid the wasting of resources, step 32 further include: according at least two fragment packets, determine
Segmental identification information；Wherein, it is fragment signaling that segmental identification information, which is used to indicate original signaling,；By segmental identification Information encapsulation in
In SDTP message.That is, increasing segmental identification field in SDTP message, such destination node passes through SDTP receiving
When the original signaling that message transmits, it is no longer necessary to be deep into inside IP header field and go to judge whether these packets are fragment packets, only
From the segmental identification field of external SDTP message it is known that is received is fragment packets, then frament reassembling can be directly carried out,
Avoid the waste of computing resource.
Specifically, SDTP message format can refer to shown in table 3:
Table 3
Original signaling code stream is transmitted based on existing SDTP agreement, is IP packet fragmentation packet in the network packet that DPI system acquisition arrives
When, the general packet header SDTP, Ethernet, IP, TCP header etc. calculates according to the most common situation are as follows: 14+14+20+20=
68Bytes.For the SIP request signaling of three fragments, using the packet for being multiplexed first fragment packets in the embodiment of the present invention
The mode of head, can save 2*68Bytes=126Bytes.And a SIP call establishment, corresponding source code flow may have
2 to 3 message are fragments, that is to say, that SIP calling the corresponding source code signaling flow in the collection point of an interface just
The bandwidth of about 400Bytes can be saved.Assuming that there is 20,000,000 VoLTE user in a province, daily calling ticket amount is probably
2000000000000, the bandwidth of saving is about 80G.Further, if DPI system is needed while being transmitted to multiple application systems original
When signaling, increase at double can largely be saved network bandwidth by the bandwidth of saving in this way, improve the utilization of network bandwidth
Rate.
In the shared data transmission agreement SDTP method for message transmission of the embodiment of the present invention, when original signaling to be transmitted is point
Piece signaling, i.e., when original signaling includes at least two fragment packets, by the packet header of fragment packets at least two fragment packets and
The backpack body of each fragment packets is encapsulated in a SDTP message to be transmitted and is sent to destination node, equal without each fragment packets in this way
Packet header is carried, the transmission bandwidth of SDTP message can be saved, improve the utilization rate of network transmission bandwidth.
Just shared data transmission agreement SDTP method for message transmission of the invention makes introduction to above embodiments respectively, below
The present embodiment will be described further its corresponding network equipment in conjunction with attached drawing.
Specifically, as shown in figure 4, the network equipment 400 of the embodiment of the present invention, is applied to source node, comprising:
Module 410 is obtained, for obtaining at least two fragment packets of original signaling to be transmitted；
Generation module 420, for generating shared data transmission agreement SDTP to be transmitted and disappearing according at least two fragment packets
Breath；Wherein, SDTP message includes: the backpack body of the packet header of fragment packets and each fragment packets at least two fragment packets；
Sending module 430, for SDTP message to be sent to destination node.
Wherein, packet header includes: the general head of SDTP, Ethernet Ethernet, IP and TCP header.
Wherein, SDTP message includes: SDTP message header and SDTP message body, and SDTP message body includes: at least two fragments
The backpack body of the packet header of fragment packets and each fragment packets in packet.
Wherein, generation module 420 includes:
First encapsulation unit, for the backpack body of first fragment packets in packet header and at least two fragment packets to be encapsulated as
One source code flow frame；
Second encapsulation unit, for successively being carried out to other fragment backpack bodies at least two fragment packets according to preset order
Encapsulation, generates SDTP message to be transmitted；Wherein, other fragment packets be at least two fragment packets in addition to first fragment packets
Fragment packets.
Wherein, generation module 420 further include:
Determination unit, for determining segmental identification information according at least two fragment packets；Wherein, segmental identification information is used
In indicating that original signaling is fragment signaling；
Third encapsulation unit is used for segmental identification Information encapsulation in SDTP message.
Network equipment embodiment of the invention is, the institute in above method embodiment corresponding with the embodiment of the above method
There is realization rate suitable for the embodiment of the network equipment, can also reach identical technical effect.The network equipment to
Transmitting original signaling is fragment signaling, i.e., when original signaling includes at least two fragment packets, by one at least two fragment packets
The backpack body of the packet header of fragment packets and each fragment packets is encapsulated in a SDTP message to be transmitted and is sent to destination node, in this way
Packet header is carried without each fragment packets, the transmission bandwidth of SDTP message can be saved, improves the utilization rate of network transmission bandwidth.
In order to preferably realize above-mentioned purpose, as shown in figure 5, the embodiments of the present invention also provide a kind of network equipment,
The network equipment includes: processor 500；The memory 520, Yi Jitong being connected by bus interface with the processor 500
Cross the transceiver 510 that bus interface is connected with processor 500；The memory 520 is being executed for storing the processor
Used program and data when operation；Data information or pilot tone are sent by the transceiver 510, also passes through the transmitting-receiving
Machine 510 receives uplink control channel；When processor 500 calls and executes the program and data stored in the memory 520
When, realize following functional module:
Processor 500 is used to read the program in memory 520, executes following process: obtaining original signaling to be transmitted
At least two fragment packets；According at least two fragment packets, shared data transmission agreement SDTP message to be transmitted is generated；Its
In, SDTP message includes: the backpack body of the packet header of fragment packets and each fragment packets at least two fragment packets.
Transceiver 510, for sending and receiving data under control of the processor 500, specifically for sending out SDTP message
It send to destination node.
Wherein, in Fig. 5, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 500
The various circuits for the memory that the one or more processors and memory 520 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 510 can
To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided
Member.Processor 500, which is responsible for management bus architecture and common processing, memory 520, can store processor 500 and is executing operation
When used data.
It will be understood by those skilled in the art that realize above-described embodiment all or part of step can by hardware come
It completes, relevant hardware can also be indicated by computer program to complete, the computer program includes executing above-mentioned side
The instruction of some or all of step of method；And the computer program can store in a readable storage medium storing program for executing, storage medium
It may be any type of storage medium.
In addition it should be pointed out that in the apparatus and method of the present invention, it is clear that each component or each step are can to divide
It solves and/or reconfigures.These, which decompose and/or reconfigure, should be regarded as equivalent scheme of the invention.Also, execute above-mentioned system
The step of column processing, can execute according to the sequence of explanation in chronological order naturally, but not need centainly suitable according to the time
Sequence executes, and certain steps can execute parallel or independently of one another.For those of ordinary skill in the art, it is to be understood that this
The whole or any steps or component of the method and apparatus of invention, can any computing device (including processor, storage
Medium etc.) perhaps to be realized with hardware, firmware, software or their combination in the network of computing device, this is this field
Basic programming skill of the those of ordinary skill in the case where having read explanation of the invention with them can be achieved with.
Therefore, the purpose of the present invention can also by run on any computing device a program or batch processing come
It realizes.The computing device can be well known fexible unit.Therefore, the purpose of the present invention can also include only by offer
The program product of the program code of the method or device is realized to realize.That is, such program product is also constituted
The present invention, and the storage medium for being stored with such program product also constitutes the present invention.Obviously, the storage medium can be
Any well known storage medium or any storage medium that developed in the future.It may also be noted that of the invention
In device and method, it is clear that each component or each step can be decomposed and/or be reconfigured.These decomposition and/or again group
Conjunction should be regarded as equivalent scheme of the invention.Also, the step of executing above-mentioned series of processes can be naturally according to the sequence of explanation
It executes in chronological order, but does not need centainly to execute sequentially in time.Certain steps can parallel or independently of one another
It executes.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (12)
1. a kind of shared data transmission agreement SDTP method for message transmission is applied to source node characterized by comprising
Obtain at least two fragment packets of original signaling to be transmitted；
According at least two fragment packets, shared data transmission agreement SDTP message to be transmitted is generated；Wherein, the SDTP
Message includes: the backpack body of the packet header of fragment packets and each fragment packets at least two fragment packets；
The SDTP message is sent to destination node.
2. shared data transmission agreement SDTP method for message transmission according to claim 1, which is characterized in that the packet header
It include: the general head of SDTP, Ethernet Ethernet, IP and TCP header.
3. shared data transmission agreement SDTP method for message transmission according to claim 1, which is characterized in that the SDTP
Message includes: SDTP message header and SDTP message body, and the SDTP message body includes: one point at least two fragment packets
The backpack body of the packet header of piece packet and each fragment packets.
4. shared data transmission agreement SDTP method for message transmission according to claim 3, which is characterized in that the basis
At least two fragment packets, the step of generating shared data transmission agreement SDTP message to be transmitted, comprising:
The backpack body of first fragment packets in the packet header and at least two fragment packets is encapsulated as first source code flow
Frame；
Successively other fragment backpack bodies at least two fragment packets are packaged according to preset order, are generated to be transmitted
SDTP message；Wherein, other described fragment packets are the fragment packets at least two fragment packets in addition to first fragment packets.
5. shared data transmission agreement SDTP method for message transmission according to claim 1, which is characterized in that the basis
At least two fragment packets, the step of generating shared data transmission agreement SDTP message to be transmitted, further includes:
According at least two fragment packets, segmental identification information is determined；Wherein, the segmental identification information is used to indicate described
Original signaling is fragment signaling；
By the segmental identification Information encapsulation in SDTP message.
6. a kind of network equipment is applied to source node characterized by comprising
Module is obtained, for obtaining at least two fragment packets of original signaling to be transmitted；
Generation module, for generating shared data transmission agreement SDTP message to be transmitted according at least two fragment packets；
Wherein, the SDTP message includes: the packet of the packet header of fragment packets and each fragment packets at least two fragment packets
Body；
Sending module, for the SDTP message to be sent to destination node.
7. the network equipment according to claim 6, which is characterized in that the packet header includes: the general head of SDTP, Ethernet
Ethernet, IP and TCP header.
8. the network equipment according to claim 6, which is characterized in that the SDTP message include: SDTP message header and
SDTP message body, the SDTP message body include: the packet header of fragment packets and each point at least two fragment packets
The backpack body of piece packet.
9. the network equipment according to claim 8, which is characterized in that the generation module includes:
First encapsulation unit, for encapsulating the backpack body of first fragment packets in the packet header and at least two fragment packets
For first source code flow frame；
Second encapsulation unit, for successively being carried out to other fragment backpack bodies at least two fragment packets according to preset order
Encapsulation, generates SDTP message to be transmitted；Wherein, other described fragment packets are that the first point is removed at least two fragment packets
Fragment packets except piece packet.
10. the network equipment according to claim 6, which is characterized in that the generation module further include:
Determination unit, for determining segmental identification information according at least two fragment packets；Wherein, the segmental identification letter
It is fragment signaling that breath, which is used to indicate the original signaling,；
Third encapsulation unit is used for the segmental identification Information encapsulation in SDTP message.
11. a kind of network equipment, which is characterized in that the network equipment includes processor, memory and is stored in memory
Computer program that is upper and can running on a processor, processor are realized any in claim 1 to 5 when executing computer program
The step in shared data transmission agreement SDTP method for message transmission described in.
12. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes shared data transmission agreement described in any one of claims 1 to 5 when computer program is executed by processor
The step of SDTP method for message transmission.
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Application publication date: 20190514 |