CN106549806A - A kind of network section manager and its management method - Google Patents
A kind of network section manager and its management method Download PDFInfo
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- CN106549806A CN106549806A CN201610949216.1A CN201610949216A CN106549806A CN 106549806 A CN106549806 A CN 106549806A CN 201610949216 A CN201610949216 A CN 201610949216A CN 106549806 A CN106549806 A CN 106549806A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/78—Architectures of resource allocation
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Abstract
The present invention proposes a kind of network section manager and its management method, belongs to communication technical field, and the manager includes creation module, dilatation module, removing module, user's request table, network slicing parameter table and network section state table, and multiple external interfaces；Wherein, creation module is connected with user's request table, network slicing parameter table respectively；Dilatation, removing module are respectively connected with network slicing parameter table, network section state table；Creation module is connected with core net, access network, physical resource pool and user by external interface, and dilatation module is cut into slices with existing network by external interface and physical resource pool is connected, and removing module is connected with the section of existing network by external interface；The management method of the manager includes the establishment of network section, three parts of dilatation and deletion；The present invention can be created that the network section for meeting demand according to user's request, and the utilization rate that effectively network is cut into slices is maximized, so as to improve network resource utilization.
Description
Technical field
The invention belongs to communication technical field, more particularly to a kind of network section manager and its management method.
Background technology
In following the Internet of things era, the connection between person to person, people and thing, thing and thing occurs various rich and varied
Communication requirement.Future network application scenarios species is various, different application scene to speed, capacity, coverage rate and safety etc. all
There are different requirements.If all setting up a specific network for every kind of business, although can be very good to meet various scenes
Demand, but cost is too high is difficult to；If all different business demands are all carried in identical consolidated network,
The decline of business experience can be caused because of the larger difference of business demand.5G networks should be built in a more flexible way, and be transported
Battalion business then can be adjusted flexibly and be combined to network performance indexes such as speed, capacity, coverage rate and safeties, so as to meet
The individual demand of different application.Therefore, NGMN (Next Generation Mobile Networks) proposes network section
Technological concept, 3GPP (3rd Generation Partnership Project) are also cut into slices network as next generation network and are closed
One of key technology.
Network section (Network Slice, NS) is made up of one group of network function (Network Function, NF)
A series of complete instantiation logic network, it is intended to provide the user network services needed for which.In same physical infrastructure
On, using software defined network (Software Defined Network, SDN) and network function virtualization (Network
Function Virtualization, NFV) etc. technology, for different application scenarios create on demand setting network section,
Reach the optimization of network resource usage.
Used as one of next generation network key technology, which is intended to higher using optimized resource allocation network microtomy
Effect ground solves line business (such as higher to bandwidth requirement HD video business, game service higher to delay requirement etc.
Deng).For future network, network section will have polytype, and wherein most basic type is then corresponded to three under 5G networks
The enhancement mode mobile broadband type section of big application scenarios, superelevation reliability are cut with the section of low latency type and large-scale machines class communication type
Piece.
The physical resource structure that network is cut into slices by the network function being adapted with application scenarios and corresponding to the network function
Into.Network function is present in access network and core net, and some of which network function is can be only present in access network or core net, and
Some network functions both may reside in access network and can also be present in core net.Different network functions needs corresponding thing
Manage resource to support, and physical resource is present in physical resource pool.Additionally, there is likely to be topological pass between network section
System, existing to carry out the shared of physical resource between the section of topological relation.The manager to network section for proposing at present
Method, is mainly described from technological layer to network section, and the demand for not being based entirely on user is set out, and can not reach money
The optimization that source utilizes.
The content of the invention
The invention aims to overcome the weak point of prior art, a kind of network section manager and its pipe are proposed
Reason method, the present invention can make corresponding adjustment according to the change of user's request in real time, reach utilization of resources optimization, and it is right to realize
The perfect management of network section.
A kind of network manager proposed by the present invention, it is characterised in that including creation module, dilatation module, removing module,
User's request table, network slicing parameter table and network section state table, and multiple external interfaces；Wherein, creation module difference
It is connected with user's request table, network slicing parameter table；Dilatation module respectively with network slicing parameter table, network section state table phase
Even；Removing module is connected with network slicing parameter table, network section state table respectively；Creation module passes through external interface and core
Net, access network, physical resource pool and user connection, dilatation module are cut into slices with already present network by external interface and physics money
Source pond is connected, and removing module is connected with the section of already present network by external interface.
The creation module is used for the establishment of network section；The network section application request that creation module receive user sends
Afterwards, the application information including the type of service and application time cut into slices including user's log on is collected and is stored to
In the required list of family, the application information is updated by creation module according to setting cycle timing；Creation module was received according to the previous cycle
The application information of collection analyzes the parameters of network section needed for user, in mainly including that network slice type, network are cut into slices
Comprising network function, network section creation time, network section prediction the persistent period and network section user capacity
And these parameters are stored into network slicing parameter table, utilize corresponding in core net or access network according to network slicing parameter
In network function and physical resource pool, corresponding physical resource creates network section, or creates to the section of user feedback network
The information of failure；Wherein, the network function that the network slice type of same type of service and the network section are included is uniquely determined；
Creation time is created module renewal according to the application time of this and last time network section, creates such network as next time
The creation time of section.
The dilatation module is used for the dilatation of network section；Dilatation module obtains the congestion of each existing network section in real time
State, the topological relation of the active user connection amount of network section and each existing network section by these status informations
Store into network section state table；Dilatation module when detecting a certain existing network section congestion occur, will from this
Network section obtains the physics for being adapted to network section in there is other networks sections of topological relation or physical resource pool
Resource, the network section to there is congestion carry out dilatation；Meanwhile, dilatation module can be by the type network section that congestion occurs
User capacity lifts 5%～15%, meets the business demand of user, and the user capacity after lifting creates same type as next time
The user capacity of network section.
The removing module is used for the deletion of network section；After network section is created, when the persistent period of network section
After reaching the 75%～85% of prediction persistent period, and 5% time period of continuous prediction persistent period in network section use
Family connection amount is zero, and removing module is then deleted the network section, discharges its internal physical resource and delete the network and cut into slices
Corresponding status information；Removing module was cut into slices to the type network according to the current actual persistent period for being deleted network section
The prediction persistent period is updated, and is easy to create use when same type network piece is cut into slices next time.
The management method of the network section manager, it is characterised in that including establishment, dilatation and the deletion of network section
Three parts；Creation module collects the network section solicited message of user, is that the establishment of network section is prepared, and creation module is led to
After crossing the network slice type and its parameter that user request information analyzes needs establishment, it is created that network is cut into slices；When dilatation mould
When block detects network section generation congestion, then dilatation can be carried out to which, that is, lifts the user capacity of network section；Work as satisfaction
The time requirement of setting accesses already present network section without user, and removing module is then deleted the network and cuts into slices and discharge which
Internal physical resource.
The creation method of the network section, specifically includes following steps：
(1.1) user is according to business demand, the creation module transmission log on section request of manager of cutting into slices to network；
(1.2) after creation module receives the log on section request of user's transmission, by including the network section request
Type of service and application time are collected and stored in user's request table in interior application information；Creation module is according to setting cycle
The information in user's request table is automatically updated, and the user in this cycle was applied according to user's application information of storage of the upper cycle
Information is predicted；
(1.3) user application of the creation module to different service types is classified, and analyzes establishment different service types
Network function required for network section；Creation module also counts the distribution situation of different service types application time, root respectively
Continue to determine the creation time of each network section and predict according to the different service types application time densely distributed time period
Time T, using in maximum single hour, user applies number as user capacity；Network corresponding with type of service is cut by creation module
Network function, the creation time of network section, the prediction persistent period of network section and the net included in sheet type, network section
The user capacity of network section is stored in network slicing parameter table；
(1.4) according to the parameter in network slicing parameter table, creation module whether there is in searching core net and access network
Corresponding network function, judges according to user capacity whether the resource in physical resource pool is sufficient：If there is corresponding network work(
Can be with sufficient physical resource, then creation module is according to the parameter establishment network section in network slicing parameter table；If do not deposited
Failure is then created corresponding network function or physical resource are not enough, after creating failure creation module to user feedback failure information,
User is made to abandon the request of the business；
(1.5) creation module is received again by corresponding with already recorded in the network slice type in network slicing parameter table
During user's request, densely distributed time period its application time is counted again, analyze new creation time, and cut into slices with network
In parameter list, original creation time averages to update creation time, used as the wound for creating the section of same type network next time
Build the time.
The expansion method of the network section, specifically includes following steps：
(2.1) dilatation module obtains the status information of all existing network sections in real time, and the status information is stored in
In network section state table；When network section generation congestion is detected, the acquisition of dilatation module exists topological with network section
User's connection amount of other network sections of relation, cuts into slices if there is other abundant networks of resource, then the network is cut into slices
Physical resource share to occur congestion network section；If there is no the network section that resource is abundant, then into step
(2.2)；
(2.2) dilatation module obtains the physical resource for being adapted to the network section from physical resource pool, and the network is cut into slices
Dilatation；If respective resources are not enough in physical resource pool, dilatation failure；After dilatation failure, dilatation module can prevent user from connecing
Enter in the network section of the congestion, when user's connection amount of the network section is less than the 70%～80% of user capacity
User is allowed to access；
(2.3) when detecting the section of certain network congestion occurs, no matter dilatation success or not, dilatation module is all
The user capacity of the type network section in network slicing parameter table can be lifted 5%～15%, same type is created as next time
The user capacity of network section.
The delet method of the network section, specifically includes following steps：
(3.1) after network chip durations t1 reaches the 75%～85% of prediction duration T, if t2 continuous time
Interior removing module detects user's connection amount of the type network section in network section state table and is always zero, then removing module
Delete the network to cut into slices and discharge its internal physical resource, while it is corresponding to delete the network section in network section state table
All information；T2 continuous time is predict duration T 5%；
(3.2) removing module records each actual duration T 1 of each network section, if the persistent period of reality
T1 differs 5% less than prediction duration T with prediction duration T, then next time, the network section still maintained former prediction
Duration T；If the duration T of reality 1 differs by more than the 5% of prediction duration T with prediction duration T, enter
Enter step (3.3)；
(3.3) removing module calculates meansigma methodss T2 of prediction duration T and the duration T 1 of reality, and by network
In slicing parameter table, the former prediction persistent period of the network section is revised as meansigma methodss T2, used as establishment the type net next time
The prediction persistent period of network section.
The characteristics of of the invention and beneficial effect：
The present invention with the addition of record customer service application and using application information analysis wound in network section visioning procedure
The step of establishing network section relevant parameter.The method can be created that the network section for meeting demand, effectively according to user's request
The utilization rate that network is cut into slices by ground is maximized, so as to improve network resource utilization.After the completion of network section is created, network is cut
Dynamically according to user, connection amount carries out dilatation operation to network section to piece manager in real time, strengthens motility, can be effective
Certain accident is tackled, the demand of more users is met.In the stage of deletion, adjustment network chip durations work(is increased
Can, can be according to the persistent period of actual connection dynamic adjustment network section, the connection need for meeting user as much as possible
While asking, complete the deletion of network section and discharge resource.
Description of the drawings
Accompanying drawing herein is only used for providing a further understanding of the present invention, constitutes the part of the application.The present invention's
Schematic description and description is only used for the explanation present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of network section manager.
Fig. 2 is network section network integrated stand composition.
Fig. 3 is network section state transition diagram.
Fig. 4 is network section visioning procedure figure.
Fig. 5 is network section dilatation flow chart.
Fig. 6 is that flow chart is deleted in network section.
Specific embodiment
In order that technical scheme easily facilitates understanding with functional structure, pass through each several part work(below in conjunction with accompanying drawing
The present invention is described in detail for energy.Concrete function embodiment described herein only to explain the present invention, is not used to limit
The present invention.
A kind of structure of network section manager proposed by the present invention as shown in figure 1, including creation module, dilatation module,
Removing module, user's request table, network slicing parameter table and network section state table, and multiple external interfaces；Wherein, create
Module is connected with user's request table, network slicing parameter table respectively；Dilatation module is cut into slices with network slicing parameter table, network respectively
State table is connected；Removing module is connected with network slicing parameter table, network section state table respectively.
Using the overall architecture of the network section network of above-mentioned manager of the invention, as shown in Fig. 2 whole network includes
Core net, access network, physical resource pool, network section manager, network section and user.Wherein, in core net and access network
Store multiple network function NF, NF1 as shown in Figure 2, NF2 ..., NF8；Creation module in network section manager
It is connected with core net, access network, physical resource pool and user by external interface；Dilatation module in network section manager is led to
Cross that external interface is cut into slices with already present network and physical resource pool is connected；Removing module in network section manager is by outer
Portion's interface is connected with the section of already present network.
The creation module of the manager is used for the establishment of network section；Creation module receives user and sends network section
After application request, the application information including the type of service and application time cut into slices including user's log on is collected simultaneously
It is stored in user's request table, the application information is updated by creation module according to the cycle timing of setting, the activity tool of user
There is certain periodicity, the present embodiment was used as a cycle with 24 hours；The application that creation module was collected according to the previous cycle
Information analysiss go out the parameters of network section needed for user, the main net for including that network slice type, network are included in cutting into slices
The user capacity of network function, the creation time of network section, the prediction persistent period of network section and network section, according to network
Slicing parameter is created using corresponding physical resource in corresponding network function in core net or access network and physical resource pool
Network is cut into slices, or the information of establishment failure of cutting into slices to user feedback network；Wherein, the network slice type of same type of service
And the network function that the network section is included is uniquely determined；Application time of the creation time according to network section of this and last time
Module renewal is created, as the creation time for creating such network section next time.
The dilatation module of the manager is used for the dilatation of network section；Dilatation module obtains each existing network in real time and cuts
The topological relation of the congestion state of piece, actual user's connection amount of the network section and each existing network section；Dilatation mould
Block, will be from other networks that there is topological relation with network section when a certain existing network section generation congestion is detected
The physical resource for being adapted to the network section is obtained in section or physical resource pool, the network section to there is congestion is expanded
Hold；Meanwhile, the user capacity of the type network section that congestion occurs can be lifted 5%～15% (concrete numerical value by dilatation module
Can be set according to actual Congestion Level SPCC), meet the business demand of user, the user capacity after lifting creates phase as next time
The user capacity of same type network section.
The removing module of the manager is used for the deletion of network section；After network section is created, when network section
Persistent period reach the prediction persistent period 75%～85% (concrete numerical value can be set according to actual connection amount size at that time
It is fixed) afterwards, and 5% time period of continuous prediction persistent period in user's connection amount of network section be zero, removing module is then
The network section is deleted, its internal physical resource is discharged and the corresponding status information of network section is deleted；Removing module root
The prediction persistent period that the type network is cut into slices is updated according to the current actual persistent period for being deleted network section, is easy to
Create next time when same type network piece is cut into slices and use.
The user's request table of the manager as shown in table 1, cut by the user's log on for storage creation module collection
Piece solicited message, including type of service and application time two arrange；Wherein, type of service refers to such as HD video, game service etc.
Business, in table 1, these types of service are represented by 7 bit binary numbers, can at most represent 128 kinds of different types of service,
As in table 1,0000000 represents that HD video business, 0000001 represent game service；Application time is stored by 10 integers, such as
Shown in table 1,0,910,082,034 8 points of expression September 10 days 20 minutes and 34 seconds；User's request table can record the user's letter of application in 24 hours
Breath, the present embodiment store up to 20000 (user's application information bar number upper limit of storage can be set according to actual needs)
User's application information, deleted all information in table 1, and updates table 1 by creation module per 24 hours.
Table 1
| Type of service | Application time |
| 0000000 | 0910082034 |
| 0000001 | 0910093023 |
| …… | …… |
As shown in table 2, the table is used to store all types of network sections the network slicing parameter table of the manager
Parameters, including network section type, network section in include network function, network section creation time, network
The prediction persistent period of section and the user capacity of network section；Wherein, network slice type is relative with the type of service in table 1
Should, represented with same 7bit；Network function NF is present in core net and access network, with the different network of 2 integer representation
In function, such as network function of table 2,03 represents that the network function of high bandwidth, 02 represent the network function of low time delay；During establishment
Between it is same by 10 integer representations, 0911080010 represents 8 points of September 11 days 0 minute and 10 seconds；The unit of prediction persistent period is little
When；The unit of user capacity is individual.Network section is created for first, creation time and the prediction persistent period of the network section
By creation module according to densely distributed time period application time in table 1 determining, the user capacity of network section is by creating
Module is determined according to the user's application number in maximum single hour.For the non-same type network section for creating first, the network
Corresponding network function of cutting into slices is uniquely determined and will not be changed, and creation time is according to the application of this and last time network section
Time is created the actual persistent period that module updates, the prediction persistent period cuts into slices according to this network and the last time network is cut
Piece prediction the persistent period be deleted module update, occurred before congested network section user capacity by dilatation module more
Newly, it is easy to create next time when same type network piece is cut into slices and uses.
Table 2
| Network slice type | Network function | Creation time | The prediction persistent period | User capacity |
| 0000000 | 03,05 | 0911080010 | 4 | 400 |
| 0000001 | 02,07 | 0911090023 | 6 | 200 |
| …… | …… | …… | …… | …… |
As shown in table 3, the table is used for the state letter for storing existing network section to the network section state table of the manager
Breath, the topological relation and user's amount of connection cut into slices with other networks of cutting into slices including network slice number, congestion state, the network
Four row；As the network section in synchronization, same type only can have one, so network slice number and net in table 2
Network slice type is corresponding, is represented with same 7bit；When the user of access network section is excessive, network section service user
During the situation of packet loss or time delay increase occurs, that is, there is congestion, represent congestion with " 1 " in table 3, " 0 " then table
Show congestion；In topological relation, " 0000001 " represents that the network section is cut with the network that network slice number is 0000001
There is topological relation in piece, " 0000000 " represents that the network section presence that the network is cut into slices with network slice number is 0000000 is opened up
Relation is flutterred, "-" represents the network section that not there is topological relation with the network section；User's connection amount is then represented and is currently connected
It is connected to the number of users of the network section.
Table 3
| Network slice number | Congestion state | Topological relation | User's connection amount |
| 0000000 | 0 | 0000001 | 20 |
| 0000001 | 1 | 0000000 | 200 |
| 0000010 | 0 | — | 0 |
| …… | …… | …… | …… |
The management method of above-mentioned network section manager proposed by the present invention includes establishment, dilatation and the deletion of network section
There is no network section in three parts, transfer figures of the Fig. 3 for network section state, 0 representative, 1 representative has network and cuts into slices.The shape
The all flow processs being related to during inventive network section manager administration method is covered in state transfer figure：Before creating network section
The network section solicited message of user is collected by creation module, is that the establishment of network section is prepared, creation module passes through user
Solicited message analyzes the network slice type and its parameter that need to create (including the included network function of network section, wound
Build time and prediction persistent period etc.) after, it is created that network is cut into slices, into state 1；During network section is present, work as expansion
When molar block detects network section generation congestion, then dilatation operation can be carried out to which, that is, the user for lifting network section holds
Amount；When the time requirement for meeting setting, when connecting network section without user, removing module is then deleted the network and is cut into slices simultaneously
Its internal physical resource is discharged, state 0 is returned.
The concrete steps of management method of the present invention are described in detail with reference to flow chart as follows：
The creation method of the network section, its flow process is as shown in figure 4, specifically include following steps：
(1.1) user is according to business demand, the creation module transmission log on section request of manager of cutting into slices to network；
(1.2) after creation module receives the log on section request of user's transmission, by including the network section request
Type of service and application time are collected and stored in user's request table in interior application information；In the present embodiment, user's request
Table first records the user's application information in 24 hours, and creation module deleted all information in table per 24 hours, and under start recording
One user's application information of 24 hours, user's application information that creation module was collected according to past 24 hours one day is to following one
It user's application information is predicted；
(1.3) user application of the creation module to different service types is classified, and analyzes establishment different service types
Network function required for network section；Creation module counts the distribution situation of different service types application time respectively, according to
When densely distributed time period different service types application time determines that the creation time of each network section and prediction continue
Between T, using in maximum single hour, user applies number as user capacity；Creation module will network section corresponding with type of service
Network function, the creation time of network section, the prediction persistent period of network section and the network included in type, network section
The user capacity of section is stored in network slicing parameter table；
(1.4) according to the parameter in step (1.3) network slicing parameter table, creation module is searched in core net and access network
With the presence or absence of corresponding network function, judge according to user capacity whether the resource in physical resource pool is sufficient：If there is phase
The physical resource of network function and abundance is answered, then creation module is created according to the parameter in step (1.3) network slicing parameter table
Network is cut into slices；Failure is then created if there is no corresponding network function or physical resource are not enough, create after failure creation module to
User feedback failure information, makes user abandon the request of the business；
(1.5) creation module is received again by corresponding with already recorded in the network slice type in network slicing parameter table
During user's request, densely distributed time period its application time is counted again, analyze new creation time, and cut into slices with network
In parameter list, original creation time averages to update creation time, used as the wound for creating the section of same type network next time
Build the time.
The expansion method of the network section, its flow process is as shown in figure 5, specifically include following steps：
(2.1) dilatation module obtains the status information of all existing network sections in real time (including network slice number, congestion
Topological relation and user's connection amount of state and other network sections etc.), and it is sliced that the status information is stored in network
In state table；When network section generation congestion is detected, dilatation module obtains other that there is topological relation of cutting into slices with the network
User's connection amount of network section, if there is other network sections (such as user's connection of the network section that resource is abundant
Amount less than its user capacity 20%, concrete numerical value can be set according to practical situation), then by the physics money of the network section
Source shares to the network section that congestion occurs；If there is no the network section that resource is abundant, then into step (2.2)；
(2.2) dilatation module obtains the physical resource for being adapted to the network section from physical resource pool, and the network is cut into slices
Dilatation；If respective resources are not enough in physical resource pool, dilatation failure；After dilatation failure, dilatation module can prevent user from connecing
Enter in the network section of the congestion, until user's connection amount of the network section (has less than the 70%～80% of user capacity
Body numerical value can be set according to real network congestion situation) when just allow user access；
(2.3) when detecting the section of certain network congestion occurs, no matter dilatation success or not, dilatation module is all
The user capacity of the type network section in network slicing parameter table can be lifted 5%～15%, same type is created as next time
The user capacity of network section.
The delet method of the network section, its flow process is as shown in fig. 6, specifically include following steps：
(3.1) after network chip durations t1 reaches the 75%～85% of prediction duration T, if t2 continuous time
(the 5% of the prediction persistent period) interior removing module detects user's connection amount of the type network section in network section state table
Zero is always, then removing module is deleted the network and cuts into slices and discharge its internal physical resource, while deleting network section state
The corresponding all information of network section in table；
(3.2) removing module records actual duration T that each network cuts into slices each 1 (i.e. network section is from initial
Be created to it is final delete institute after duration), if the duration T of reality 1 differs to be less than with prediction duration T predicted
The 5% of duration T, then next time, the network section still maintained former prediction duration T；If the duration T of reality with
Prediction duration T differs by more than the 5% of prediction duration T, then into step (3.3)；
(3.3) removing module calculates meansigma methodss T2 of prediction duration T and the duration T 1 of reality, and by network
In slicing parameter table, the former prediction persistent period of the network section is revised as meansigma methodss T2, used as establishment the type net next time
The prediction persistent period of network section.
Above step can be realized by common programmed method.
Claims (8)
1. a kind of network is cut into slices manager, it is characterised in that including creation module, dilatation module, removing module, user's request
Table, network slicing parameter table and network section state table, and multiple external interfaces；Wherein, creation module respectively please with user
Table, network slicing parameter table is asked to be connected；Dilatation module is connected with network slicing parameter table, network section state table respectively；Delete
Module is connected with network slicing parameter table, network section state table respectively；Creation module is by external interface and core net, access
Net, physical resource pool and user connection, dilatation module are cut into slices with already present network by external interface and physical resource pool phase
Even, removing module is connected with the section of already present network by external interface.
2. network as claimed in claim 1 is cut into slices manager, it is characterised in that the creation module is used for the wound of network section
Build；After the network section application request that creation module receive user sends, to the type of service including user's log on section
It is collected and stores into user's request table in interior application information with the application time, the application information is according to setting cycle
Timing is updated by creation module；Creation module network section according to needed for the application information that the previous cycle collects analyzes user
Parameters, it is main including the network function included in network slice type, network section, the creation time of network section, net
The user capacity for predicting persistent period and network section of network section simultaneously stores these parameters into network slicing parameter table, root
According to network slicing parameter using corresponding physics money in corresponding network function in core net or access network and physical resource pool
Source creates network section, or the information of establishment failure of cutting into slices to user feedback network；Wherein, the network of same type of service is cut
The network function that sheet type and the network section are included is uniquely determined；Shen of the creation time according to network section of this and last time
Please be created module renewal the time, as the creation time for creating such network section next time.
3. network as claimed in claim 2 is cut into slices manager, it is characterised in that the dilatation module is used for the expansion of network section
Hold；Dilatation module obtain in real time the congestion state of each existing network section, the active user connection amount of network section and
The topological relation of each existing network section simultaneously stores these status informations into network section state table；Dilatation module is once
When detecting a certain existing network section congestion occurring, will cut into slices from other networks that there is topological relation with network section or
The physical resource for being adapted to the network section is obtained in person's physical resource pool, the network section to there is congestion carries out dilatation；Together
When, the user capacity of the type network section that congestion occurs can be lifted 5%～15% by dilatation module, meet the business of user
Demand, the user capacity after lifting create the user capacity of same type network section as next time.
4. network as claimed in claim 3 is cut into slices manager, it is characterised in that the removing module is used for deleting for network section
Remove；It is after network section is created, after the persistent period of network section the 75%～85% of prediction persistent period is reached and continuous
In 5% time period of prediction persistent period, user's connection amount of the network section is zero, and removing module is then deleted the network and cut
Piece, the physical resource for discharging its inside simultaneously delete the corresponding status information of network section；Removing module is deleted according to current
The actual persistent period of network section was updated to the prediction persistent period that the type network is cut into slices, and was easy to create next time similar
Use when type network piece is cut into slices.
5. a kind of network as claimed in claim 1 is cut into slices the management method of manager, it is characterised in that including the wound of network section
Build, dilatation and delete three parts；Creation module collects the network section solicited message of user, is that standard is done in the establishment of network section
Standby, creation module is created that network after user request information analyzes the network slice type and its parameter that need to create
Section；When dilatation module detects network section, and congestion occurs, then dilatation can be carried out to which, that is, lift the use of the network section
Family capacity；When the time requirement for meeting setting accesses already present network section without user, removing module then deletes the net
Network is cut into slices and discharges its internal physical resource.
6. network as claimed in claim 5 is cut into slices the management method of manager, it is characterised in that the establishment side of the network section
Method, specifically includes following steps：
(1.1) user is according to business demand, the creation module transmission log on section request of manager of cutting into slices to network；
(1.2) after creation module receives the log on section request of user's transmission, by the business including the network section request
Type and application time are collected and stored in user's request table in interior application information；Creation module is automatic according to setting cycle
The information in user's request table is updated, and according to the user application information of user's application information to this cycle of storage of the upper cycle
It is predicted；
(1.3) user application of the creation module to different service types is classified, and analyzes establishment different service types network
Network function required for section；Creation module also counts the distribution situation of different service types application time respectively, according to not
Creation time and the prediction persistent period of each network section are determined with densely distributed time period type of service application time
T, using in maximum single hour, user applies number as user capacity；Creation module will network section class corresponding with type of service
Network function, the creation time of network section, the prediction persistent period of network section and the network included in type, network section is cut
The user capacity of piece is stored in network slicing parameter table；
(1.4) according to the parameter in network slicing parameter table, creation module whether there is corresponding in searching core net and access network
Network function, judge according to user capacity whether the resource in physical resource pool sufficient：If there is corresponding network function and
Sufficient physical resource, then creation module is according to the parameter establishment network section in network slicing parameter table；If there is no phase
Network function or not enough then establishment of physical resource is answered to fail, creation module to user feedback failure information, use by order after creating failure
Abandon the request of the business in family；
(1.5) creation module be received again by with already recorded in the corresponding user of network slice type in network slicing parameter table
During request, count again densely distributed time period its application time, analyze new creation time, and with network slicing parameter
In table, original creation time averages to update creation time, during as creating the establishment of same type network section next time
Between.
7. network as claimed in claim 5 is cut into slices the management method of manager, it is characterised in that the dilatation side of the network section
Method, specifically includes following steps：
(2.1) dilatation module obtains the status information of all existing network sections in real time, and the status information is stored in network
In section state table；When network section generation congestion is detected, dilatation module is obtained has topological relation with network section
The section of other networks user's connection amount, cut into slices if there is other abundant networks of resource, then by the thing of network section
Reason resource-sharing is to the network section that congestion occurs；If there is no the network section that resource is abundant, then into step (2.2)；
(2.2) dilatation module obtains the physical resource for being adapted to the network section from physical resource pool, dilatation of cutting into slices to the network；
If respective resources are not enough in physical resource pool, dilatation failure；After dilatation failure, dilatation module can prevent user from being linked into this
In the network section of congestion, just allow to use when user's connection amount of the network section is less than the 70%～80% of user capacity
Access at family；
(2.3) when detecting the section of certain network congestion occurs, no matter dilatation success or not, dilatation module all can be by
In network slicing parameter table, the user capacity of the type network section lifts 5%～15%, creates same type network as next time
The user capacity of section.
8. network as claimed in claim 5 is cut into slices the management method of manager, it is characterised in that the deletion side of the network section
Method, specifically includes following steps：
(3.1) after network chip durations t1 reaches the 75%～85% of prediction duration T, if deleting in t2 continuous time
Except user's connection amount that module detects the type network section in network section state table is always zero, then removing module is deleted
The network is cut into slices and discharges its internal physical resource, while it is corresponding all to delete the network section in network section state table
Information；T2 continuous time is predict duration T 5%；
(3.2) removing module records each network and cuts into slices each actual duration T 1, if the duration T of reality 1 with
Prediction duration T difference less than prediction duration T 5%, then next time, the network section still maintained former prediction to continue
Time T；If the duration T of reality differs by more than the 5% of prediction duration T with prediction duration T, into step
(3.3)；
(3.3) removing module calculates meansigma methodss T2 of prediction duration T and the duration T 1 of reality, and network is cut into slices
In parameter list, the former prediction persistent period of the network section is revised as meansigma methodss T2, cuts as the type network is created next time
The prediction persistent period of piece.
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