CN108377530A - Mobile radio access network content network is sliced generation method and system - Google Patents

Mobile radio access network content network is sliced generation method and system Download PDF

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Publication number
CN108377530A
CN108377530A CN201810090062.4A CN201810090062A CN108377530A CN 108377530 A CN108377530 A CN 108377530A CN 201810090062 A CN201810090062 A CN 201810090062A CN 108377530 A CN108377530 A CN 108377530A
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content
controller
network
information
network slice
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CN108377530B (en
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靳浩
陆海亚
赵成林
彭木根
王文博
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention proposes that a kind of mobile radio access network content network is sliced generation method and system, this method includes that the acquisition of the first controller generates status information needed for mobile radio access network content network slicing processes, and determines network parameter and content parameters according to present communications resource state information, content resource status information and content service request status information；According to status information, network parameter and the content parameters acquired, corresponding control parameter is generated；According to corresponding control parameter, the mobile radio access network content network slice of content oriented business is generated in the form of statically and/or dynamically.The access delay that this method can improve the request hit rate of content service, reduce content service；Content network slice is generated by optimization, the resource utilization of Radio Access Network can be improved, reduce mobile radio access network to the content flow load of core network, be finally reached the purpose for reducing operation cost and investment spending that content service is provided.

Description

Mobile radio access network content network is sliced generation method and system
Technical field
The present invention relates to fields of communication technology more particularly to a kind of mobile radio access network content network to be sliced generation side Method and system.
Background technology
With the rapid development of smart machine, mobile subscriber starts to subscribe to and take using more and more mobile Internets Business.In these mobile internet services, the content service being used widely occupies a big chunk mobile wireless access The Internet resources of network.
In order to meet the great demand of mobile subscriber business application, structure isomery mobile radio access network is to improve user One effective solution of access rate.But for the business based on content, since user generally only focuses on content Information itself is not relevant for the position of content, for this purpose, information centre's network (ICN) network pattern new as one is suggested. In the information in heart network, mobile subscriber uploads some contents to the routing node with content caching ability, meanwhile, work as user When request content, the content information of needs can be directly obtained from the routing node for be cached with request content, and no longer need To obtaining these contents in core network.In ICN, content information is identified based on content, is named and routing, and no longer as Traditional IP network is named by the way of based on address like that and routing.In order to reduce the service time delay of content service, The hit rate of user's request content and the utilization rate to the communication resource are improved, content caching can be disposed at the edge of ICN networks. That is, in being cached on base station, micro-base station, wireless access point even user equipment in Radio Access Network Hold information.The edge content cache optimization strategy of content oriented business becomes one in isomery mobile radio access network as a result, A research hotspot.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of mobile radio access network content networks to be sliced generation side Method, this method can improve the service quality of content service, meanwhile, it is sliced by content network, wireless access network can be improved The resource utilization of network, to reduce the operation cost and the investment spending that provide content information service.
It is another object of the present invention to propose a kind of mobile radio access network content network slice generation system.
In order to achieve the above objectives, the mobile radio access network content network slice that first aspect present invention embodiment proposes Generation method is applied in mobile radio access network, including：The acquisition of first controller generates the mobile radio access network Status information needed for content network slicing processes and according to present communications resource state information, content resource status information Network parameter and content parameters are determined with content service request status information；According to status information, the network ginseng acquired Number and content parameters, generate corresponding control parameter；According to the corresponding control parameter, using shape statically and/or dynamically Formula generates the mobile radio access network content network slice；It is described according to the corresponding control parameter, using static Form generates the mobile radio access network content network slice, including：According to the corresponding control parameter, it is based on target Network performance index and/or user content Service Quality Metrics, to cached in the mobile radio access network all or Partial content carries out content network slice, obtains multiple content network slices, wherein each content network slice includes needs Distribute to its communication resource and content caching resource；It is described according to the corresponding control parameter, given birth to using dynamic form It is sliced at the mobile radio access network content network, including：The second controller controlled according to first controller/ The content service request and the corresponding control parameter that third controller is sent, are based on the target network performance indicator And/or user content Service Quality Metrics, content network is carried out to requested content in the mobile radio access network and is cut Piece obtains single content network slice, wherein each content network slice includes needing to distribute to its communication resource and interior Hold cache resources；Wherein, first controller, the second controller, the third controller type can be respectively Any one of macro base station grade controller, micro-base station grade controller and wireless access point controller.
The mobile radio access network content network that first aspect present invention embodiment proposes is sliced generation method, by adopting Collection generates status information needed for mobile radio access network content network slicing processes, and according to present communications resource status Information, content resource status information and content service request status information determine network parameter and content parameters, and according to being adopted Status information, network parameter and the content parameters of collection generate corresponding control parameter, and according to corresponding control parameter, adopt Mobile radio access network content network slice is generated with form statically and/or dynamically, the service of content service can be improved Quality, meanwhile, it is sliced by content network, the resource utilization of Radio Access Network can be improved, to reduce in offer The operation cost of appearance business and investment spending.
In order to achieve the above objectives, the mobile radio access network content network slice that second aspect of the present invention embodiment proposes Generation system, including：Acquisition module is cut for making the acquisition of the first controller generate the mobile radio access network content network Status information needed for piece process and according to present communications resource state information, content resource status information and content service Requesting state information determines network parameter and content parameters；First generation module, for according to the status information, described acquired Network parameter and content parameters generate corresponding control parameter；Second generation module, for being joined according to the corresponding control Number generates the mobile radio access network content network slice in the form of statically and/or dynamically；Described second generates mould Block, including：First generation unit, for according to the corresponding control parameter, being based on target network performance indicator and/or user Content service quality index is cut to caching all or part of content progress content network in the mobile radio access network Piece obtains multiple content networks slice, wherein each content network slice includes needing to distribute to its communication resource and interior Hold cache resources；Second generation unit, second controller/third controller hair for being controlled according to first controller The content service request sent and the corresponding control parameter are based on the target network performance indicator and/or user content Service Quality Metrics carry out content network slice to requested content in the mobile radio access network, obtain in single Content network is sliced, wherein each content network slice includes needing to distribute to its communication resource and content caching resource；Its In, first controller, the second controller, the third controller type can be respectively macro base station grade control Any one of device, micro-base station grade controller and wireless access point controller.
The mobile radio access network content network that second aspect of the present invention embodiment proposes is sliced generation system, by adopting Collection generates status information needed for mobile radio access network content network slicing processes, and according to present communications resource status Information, content resource status information and content service request status information determine network parameter and content parameters, and according to being adopted Status information, network parameter and the content parameters of collection generate corresponding control parameter, and according to corresponding control parameter, adopt Mobile radio access network content network slice is generated with form statically and/or dynamically, the service of content service can be improved Quality, meanwhile, it is sliced by content network, the resource utilization of Radio Access Network can be improved, to reduce in offer The operation cost of appearance business and investment spending.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments Obviously and it is readily appreciated that, wherein：
Fig. 1 is that the flow for the mobile radio access network content network slice generation method that one embodiment of the invention proposes is shown It is intended to；
Fig. 2 is the schematic diagram of a scenario that mobile radio access network content network is sliced generation system in the embodiment of the present invention；
Fig. 3 is the networking schematic diagram of controller in control plane in the embodiment of the present invention；
Fig. 4 is the networking schematic diagram of the functional entity on user plane in the embodiment of the present invention；
Fig. 5 is the illustrative view of functional configuration of macro base station controller in the embodiment of the present invention；
Fig. 6 is the flow for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Schematic diagram；
Fig. 7 is the flow for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Schematic diagram；
Fig. 8 is the flow for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Schematic diagram；
Fig. 9 is the flow for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Schematic diagram；
Figure 10 is the illustrative view of functional configuration of micro-base station grade controller in the embodiment of the present invention；
Figure 11 is the illustrative view of functional configuration of wireless access point controller in the embodiment of the present invention；
Figure 12 is the illustrative view of functional configuration of user terminal controller in the embodiment of the present invention；
Figure 13 is the stream for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Journey schematic diagram；
Figure 14 is the stream for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Journey schematic diagram；
Figure 15 is the stream for the mobile radio access network content network slice generation method that another embodiment of the present invention proposes Journey schematic diagram；
Figure 16 is the information collection of macro base station grade controller and analysis process schematic diagram in the embodiment of the present invention；
Figure 17 is the information collection of micro-base station grade controller and analysis process schematic diagram in the embodiment of the present invention；
Figure 18 is the information collection of wireless access point controller and analysis process schematic diagram in the embodiment of the present invention；
Figure 19 is the information collection of user terminal controller and analysis process schematic diagram in the embodiment of the present invention；
Figure 20 is that the static content network of macro base station controller in the embodiment of the present invention is sliced generation method flow diagram；
Figure 21 is that the static content network of micro-base station controller in the embodiment of the present invention is sliced generation method flow diagram；
Figure 22 is the flow of the dynamic content network slice optimization generation method of macro base station controller in the embodiment of the present invention Schematic diagram；
Figure 23 is the content network slice information that content network slice generates system administration manager triggering in the embodiment of the present invention Synchronized update maintenance process schematic diagram；
Figure 24 is that content network caused by being moved due to user terminal in the embodiment of the present invention is sliced synchronized update maintenance stream Journey schematic diagram；
Figure 25 is a kind of flow diagram of centralized content cache control Mode configuration process in the embodiment of the present invention；
Figure 26 is a kind of flow diagram of hybrid content caching control model configuration process in the embodiment of the present invention；
Figure 27 is a kind of flow diagram of distributed content cache control model configuration process in the embodiment of the present invention；
Figure 28 is that the content network slice optimization of system in the embodiment of the present invention generates control model configuration process schematic diagram；
Figure 29 is static content network slice optimization life of the macro base station controller based on CCSOA algorithms in the embodiment of the present invention At the flow diagram of method；
Figure 30 is the structure for the mobile radio access network content network slice generation system that one embodiment of the invention proposes Schematic diagram；
Figure 31 is the knot for the mobile radio access network content network slice generation system that another embodiment of the present invention proposes Structure schematic diagram.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.On the contrary, this The embodiment of invention includes all changes fallen within the scope of the spiritual and intension of attached claims, modification and is equal Object.
Fig. 1 is the stream for the mobile radio access network content network slice optimization generation method that one embodiment of the invention proposes Journey schematic diagram.
This method is applied in mobile radio access network.
Wherein, the executive agent of this method can be, for example, the first controller, and the type of the first controller therein can be with Respectively any one of macro base station grade controller, micro-base station grade controller and wireless access point controller.
Referring to Fig. 1, this method includes：
S101：The acquisition of first controller generates state letter needed for mobile radio access network content network slicing processes Breath, and network is determined according to present communications resource state information, content resource status information and content service request status information Parameter and content parameters.
Wherein, status information includes：The number of the second controller that first controller is controlled/third controller, first First between controller and second controller/third controller communicates related status information, the controlled user of the first controller The second communication related status information, second controller/third control between the number of terminal, second controller/third controller Third communication correlated condition letter between third communication related status information, multiple user terminals between device and user terminal processed Content caching relevant information belonging to breath, each controller；And content resource status information and content service request status information；
S102：According to status information, network parameter and the content parameters acquired, corresponding control parameter is generated.
S103：According to corresponding control parameter, mobile radio access network is generated in the form of statically and/or dynamically Content network is sliced.
Wherein, S103 generates the mobile nothing of content oriented business according to static form during specific execute The content network of line access network is sliced, then for：According to corresponding control parameter, it is based on target network performance indicator and/or use Indoor appearance Service Quality Metrics are cut to caching all or part of content progress content network in mobile radio access network Piece obtains multiple content networks slice, wherein each content network slice includes needing to distribute to its communication resource and interior Hold cache resources.
Wherein, S103 is generated according to dynamic form in mobile radio access network during specific execute Content network be sliced, then for：The content service that the second controller controlled according to the first controller/third controller is sent is asked It asks and corresponding control parameter, is based on target network performance indicator and/or user content Service Quality Metrics, to mobile nothing Requested content carries out content network slice in line access network, obtains single content network slice, wherein each content net Network slice includes needing to distribute to the communication resource of this content and content caching resource.
Wherein, the first controller, second controller, third controller type can be respectively macro base station grade controller, Any one of micro-base station grade controller and wireless access point controller.
Optionally, the first controller is user terminal controller, when the first controller is user terminal controller, second Controller/third controller is the control of the other user terminals side in addition to the first controller in mobile radio access network Device.
It is the scene that mobile radio access network content network is sliced generation system in the embodiment of the present invention referring to Fig. 2, Fig. 2 Schematic diagram.Including：Between macro base station 21, micro-base station 22, wireless access point 23, user terminal 24, macro base station and micro-base station Physical link 25, the physical link 26 between micro-base station and micro-base station, the link 27 between micro-base station and wireless access point, use Communication link 31, mobile radio access network content network between family terminal and user terminal are sliced controller 28, content net Network slice generates system administration manager 29, content caching 20.Macro base station, micro-base station in Radio Access Network, wireless access point It is even equipped with corresponding content caching 20 on user equipment, is used for cache contents information.
In an embodiment of the present invention, mobile radio access network content network be sliced generation system in, including phase Closing functional entity mainly has the mobile radio access network content network slice of content oriented business to generate system administration manager, macro base It stands, micro-base station, wireless access point and user terminal；During specific implementation, the mobile wireless of the content oriented business connects Enter network content network slice optimization generation method may include the initialization procedure of system, system control model configuration process, Content caching control model configuration process, content network slice creation process and content network slice information synchronized update process, Since the function of each equipment is likely to be at user plane or control plane, individually below from user plane and control The angle of plane, provides each functional entity and the Radio Access Network content network of content oriented business is sliced generation system phase The major function of pass.
Specifically, the meaning of the user plane to each functional entity and control plane illustrates individually below：
(1) macro base station.
The user plane of macro base station includes the content caching area and communication link belonging to macro base station；Control plane include towards The mobile radio access network content network of content service is sliced macro base station controller.
(2) micro-base station.
The user plane of micro-base station includes the content caching area and communication link belonging to macro base station；Control plane include towards The mobile radio access network content network of content service is sliced micro-base station controller.
(3) wireless access point (AP).
Wireless access point refers to system when supporting isomery mobile radio access network, the wireless access point device of introducing or Person's wireless access control equipment.The user plane of wireless access point includes the content caching area and communication chain belonging to wireless access point Road；Control plane includes that the Radio Access Network content network of content oriented business is sliced wireless access point controller.
(4) user terminal.
In the user terminal, user plane includes the content caching area belonging to user and communication link；Control plane includes The mobile radio access network content network of content oriented business is sliced user terminal controller.
Mobile radio access network content network slice optimization generation method in the embodiment of the present invention can be applied to move In dynamic Radio Access Network content network slice generation system, this is not restricted.
In the embodiment of the present invention in control plane defined above, mobile radio access network content network slice generates System is divided into three-level, i.e., in macro base station grade, micro-base station grade and user terminal grade, including the mobile radio access network of macro base station grade The mobile radio access network content net of content network slice macro base station controller (referred to as macro base station grade controller), micro-base station grade Network slice micro-base station controller (hereinafter referred to as micro-base station grade controller) and Radio Access Network content network slice wirelessly connect Enter the mobile radio access network content network of base site controller (hereinafter referred to as wireless access point controller) and user terminal Be sliced user terminal controller (hereinafter referred to as user terminal controller), furthermore it is also possible to include by with macro base station grade control Device, micro-base station grade controller and wireless access point controller processed carry out information exchange, manage the content oriented business of whole system Radio Access Network content network slice generate system administration manager.
Referring to the networking schematic diagram that Fig. 3, Fig. 3 are controller in control plane in the embodiment of the present invention.
In the embodiment of the present invention on user plane defined above, it is sliced and gives birth in mobile radio access network content network At in system, user plane includes communication layer and content caching plane.Wherein, on communication layer, including macro base station, micro- base It stands, communication link (including the wired and radio chains between functional entitys and above-mentioned entity such as wireless access point, user terminal Road)；In content caching plane, including the content being deployed on macro base station, micro-base station, wireless access point and user terminal is slow It deposits.
It is the networking schematic diagram of the functional entity on user plane in the embodiment of the present invention referring to Fig. 4, Fig. 4.Wherein, it wraps It includes：Macro base station 41, micro-base station 42, wireless access control point 43, wireless communication link 44, wired communications links 45, and can be with The content caching 46 being deployed in macro base station, micro-base station, Radio Access Controller point and user terminal.
It is sliced in generation system in mobile radio access network content network in the embodiment of the present invention, it is each in control plane Grade controller is completed to generate control process to the optimization of the content network slice on user plane, be divided below by Collaborative Control Not from two angles of control plane and user plane, the major function entity and its information exchange of system are illustrated.
In the embodiment of the present invention in control plane, includes mainly macro base station grade controller, micro-base station grade controller, wirelessly connects Enter base site controller and user terminal controller, and is interacted with each controller information, generates phase for completing content network slice The content network slice of the management function of pass generates system administration manager.Individually below to macro base station grade controller, micro-base station grade control Device, wireless access point controller and content network slice processed generate system administration manager and illustrate.
(1) macro base station grade controller.
Macro base station grade controller completes the mobile radio access network content network slice based on macro base station grade and generates correlation Control function, referring to Fig. 5, Fig. 5 is the illustrative view of functional configuration of macro base station controller in the embodiment of the present invention, including： Content service request receives and respond module 51, macro base station grade content network slice management module 52, communication module 53, macro base station Grade content network slice cache optimization control strategy module 54, macro base station communication resource module 55, macro base station grade content network are cut Piece management module 52 includes again：Content update submodule 521, content caching submodule 522, the synchronous submodule of content network slice 523, content network slice is searched and record sub module 524；Macro base station grade content network is sliced cache optimization control strategy module 54 include again：Status information capture and analysis submodule 541, control parameter generate submodule 542, content network slice control plan Slightly submodule 543 and control strategy output and distribution submodule 544, content network therein are sliced control strategy submodule 543 include specifically：Static content network is sliced control strategy unit 5431 and dynamic content network is sliced control strategy unit 5432。
Wherein, the major function of each function module is as follows：
Content service request receives and respond module 51, this module receives the content service request from micro-base station, extraction Content identification information therein, and send that information to the lookup of content network slice and record sub module 524；According to content net The content network slice information lookup result that network slice is searched and record sub module 524 is fed back, to transmission content service request Micro-base station sends the content service request lookup result message of the content service request.Wherein, content network slice information includes Corresponding to the content caching resource information of the content, communication resource information and the optimum way information for obtaining the content, including But be not limited to the identification number of the content, the content storage content caching submodule 522 mark and reach the content caching The optimal path of submodule, optimal path here refer to path when user terminal obtains the content, can be according to different excellent Change target to be chosen, for example, if obtaining the minimum cost target as an optimization of content with user terminal, it can be according to this Ground obtains, neighboring user terminals obtain, the micro-base station that is connected from this user terminal obtains, is connected by this user terminal The order that micro-base station is obtained from macro base station is ranked up.
Macro base station grade content network is sliced management module 52：In this module completion system all the elements network slice information and Record, update and the locating function of content network slice.
Content network slice is searched and record sub module 524：It is sliced for all the elements network in minute book user terminal Information；According to the content identification information extracted from content service request message, corresponding content is searched in this submodule Network slice information, the content network that the output of cache optimization control strategy module is sliced according to macro base station grade content network are sliced control System generates information, update content network slice record information；It is sliced synchronized update maintenance request information updating according to content network Content network slice information.
Content update submodule 521：For being exported according to the control strategy of this controller and distributing what submodule 544 exported Content network slice generates control information, generates the controlled content cache management mechanism for content caching submodule 522, internally The content for holding cache sub-module 522 optimizes resetting；The content caching management rule that can also be formulated according to local controller, Different autonomous content caching controlling mechanisms is executed for different contents；Wherein, content caching administrative mechanism includes that content is inserted Entering mechanism and content removes mechanism, content insertion mechanism includes but not limited to the contents insertion mechanisms such as probability caching, random cache, Content removes the content removal mechanism that mechanism includes but not limited to LRU, LFU or removes cache contents according to time cycle property.
Content network slice synchronizes submodule 523：It receives in micro-base station controller and wireless access point controller Content network is sliced synchronized update maintenance request message, and corresponding content caching is excellent when carrying out generating based on content network slice to it Content network slice synchronized update maintenance request message after merging is sent to content network slice by the merging for changing control process Generate system administration manager；The content network slice synchronized update maintenance from content network slice generation system administration manager is received to ask Message is sought, and according to the content network slice information in the message, gives the micro-base station grade controller in system and user terminal control Device processed sends content network and is sliced synchronized update maintenance request message, controls micro-base station grade controller and user terminal controller is complete At the synchronized update mistake of the related content network slice information in its respective content network slice lookup and record sub module 524 Journey.
Content caching submodule 522：For caching all the elements information provided in macro base station institute overlay area, this submodule Block generates the controlled content cache management machine that control information generates based on content update submodule 521 for content network slice System executes different content insertions to the content information of this submodule and content removes mechanism.
Macro base station grade content network is sliced cache optimization control strategy module 54：Complete the content net based on macro base station level Content caching optimal control when network slice generates generates content network slice.The major function of each submodule includes：
Status information capture and analysis submodule 541：Content network slice needed for acquisition system generates relevant state Information, the micro-base station/wireless access point number information controlled based on macro base station visual angle including but not limited in system, micro- base It stands/networking the status information of wireless access point and macro base station, the user terminal number information, the micro-base station/wireless access that are controlled Between networking status information, the networking status information of micro-base station/wireless access point and user terminal, user terminal between point The use state information of content caching belonging to networking status information and each controller；Based on macro base station grade Perspective Analysis system Current communication resource status information, content resource status information and content service request status information, provides network model class Type, content service request analysis result, the network parameter and content parameters of output system；
Control parameter generates submodule 542：According to status information capture and analysis submodule 541 export network parameter with And content parameters, generate the input control parameter that macro base station grade content network slice cache optimization control strategy module 54 needs；
Content network is sliced control strategy submodule 543：This submodule includes mainly excellent when content network slice generates Change control algolithm, including static content network slice control strategy unit 5431 and dynamic content network are sliced control strategy unit 5432。
Static content network is sliced control strategy unit 5431：The input control of submodule 542 is generated according to control parameter Parameter, with specific network performance index and/or user content Service Quality Metrics target as an optimization, based on part input control The restrictive condition of the configuration parameter of parameter and/or system processed as an optimization is completed to be sliced for the content network of all the elements excellent Change generating process；The content network slice of all the elements that output system is supported, each content network slice includes needing to distribute The communication resource to the content and content caching resource.
Dynamic content network is sliced control strategy unit 5432：According to the content service request of user, according to control parameter The input control parameter for generating submodule 542, with the Service Quality Metrics of user and/or network performance index mesh as an optimization Mark, the restrictive condition of the configuration parameter based on part input control parameter and/or system as an optimization are completed based on the content Cache optimization places decision, generates the content network slice based on the content, when exporting the content network slice generation of the content Cache contents optimal control result.
Control strategy exports and distribution submodule 544：Based in 543 output of content network slice control strategy submodule Cache contents optimal control when content network slice generates is as a result, content network of the output based on single interior perhaps full content is cut Piece information and content network slice generate control information, and content network slice information and content network slice are generated control letter Breath is distributed to and the relevant micro-base station grade controller of optimal control result, wireless access point controller and user terminal controller.
Communication module 53：Complete macro base station grade controller and micro-base station grade controller, wireless access point controller, content net Network slice is believed between generating system administration manager with the relevant control plane information of content network slice generation control and user plane Breath interaction.
Macro base station communication resource module 55：This module receives the content network of control strategy output and distribution submodule 544 Slice generates control information, and providing content network according to content network slice generation control information is sliced corresponding communication money Source, the communication resource, macro base station and nothing between the main communication resource, macro base station and micro-base station including between user and macro base station The communication resource between line access point.
Wherein, it refers to for controlling micro-base station grade controller, wireless access point control that content network slice, which generates control information, The affiliated content caching submodule of device and user terminal controller processed carries out the control information of content optimization placement.
Optionally, in some embodiments, the first controller receives the content service that second controller/third controller is sent Request, and corresponding content network slice information is inquired according to the content identification information in content service request, and will be corresponding Content network slice information is issued to second controller/third controller.
In other embodiments, the first controller therein can also be user terminal controller, in the first control Device be user terminal controller when, second controller/third controller be mobile radio access network in, except the first controller it Outer other user terminals controller.
During specific implementation, content network slice information includes：Content identification information, the caching of content storage are empty Between identify, and obtain spatial cache and identify the routing information of corresponding spatial cache, according to the content in content service request The corresponding content network slice information of identification information-enquiry, and corresponding content network slice information is issued to the second control Device/third controller further includes：It is stored according to the routing information positioning content in corresponding content network slice information slow Deposit space；Content corresponding with content identification information is read from the spatial cache stored, and corresponding content network is cut Piece information and corresponding down sending content are to second controller/third controller.
Optionally, in some embodiments, referring to Fig. 6, this method can also include：
S601：The spatial cache of the corresponding content caching of each controller is divided into configuration, is obtained corresponding with each controller The first spatial cache and the second spatial cache.
S602：It configures the first spatial cache in the content caching space of autonomous management, configures the second spatial cache to The content caching space of controlled management, wherein the content caching space of autonomous management is managed by its affiliated controller, controlled The content caching space of management is that corresponding content caching optimal control result progress is controlled when being generated based on content network slice Management.
S603：The content caching optimization resetting result information of controller output belonging to the second spatial cache, generates Controlled content cache management mechanism, to be reset to the second spatial cache institute cache contents.
S604：According to the autonomous content caching management rule that system initialization is arranged, to the content of the first spatial cache into Content caching control of the row based on autonomous content caching management rule.
Wherein, autonomous content caching controlling mechanism includes that content insertion mechanism and content remove mechanism, content insertion mechanism Including but not limited to：Probability caches and random cache content insertion mechanism, and content removes mechanism and includes but not limited to：LRU and LFU, and according to preset period of time, the content for removing cache contents periodically removes mechanism.
Optionally, in some embodiments, referring to Fig. 7, this method can also include：
S701：It is sliced to the first controller, second controller, third controller based on the multiple content networks generated, And corresponding content caching optimal control result when being sliced generation with content network belonging to user terminal controller is relevant Content caching is managed.
Optionally, in some embodiments, referring to Fig. 8, the first controller receives what second controller/third controller was sent Content service request, and corresponding content network slice information is inquired according to the content identification information in content service request, and Corresponding content network slice information is issued to second controller/third controller, including：
S801：First controller is sliced management mould according to the content identification information in content service request in its content network Corresponding content network slice information is inquired in block.
S802：First controller judges whether to inquire corresponding content network slice information；If inquired, execute 803, otherwise execute S804；
S803：Corresponding content network slice information is issued to second controller/third controller.
S804：Content service request is forwarded in the controller adjacent with the first controller, so that the adjacent control Device inquires corresponding content network slice information according to the content identification information in content service request.
In the first controller is micro-base station grade controller, wireless access point controller and user terminal controller When any, referring to Fig. 9, further include：
S8031：If inquiring corresponding content network slice information, corresponding content network slice information is issued to Second controller/third controller.
S8041：If not inquiring corresponding content network slice information, content service request is forwarded to and the first control In the adjacent controller of device processed, corresponded to so that the adjacent controller is inquired according to the content identification information in content service request Content network slice information.
S806：If adjacent controller is not inquired to obtain corresponding content network slice information, by content service request It is forwarded in the higher controller that the controller adjacent to this is controlled, so that higher controller is according in content service request Content identification information inquire corresponding content network slice information.
It is the illustrative view of functional configuration of micro-base station grade controller in the embodiment of the present invention, this controller referring to Figure 10, Figure 10 It completes the content network slice based on micro-base station grade and generates the relevant function of control, including content service request receives and response mould Block 101, micro-base station grade content network slice management module 102, communication module 103, micro-base station grade content network slice caching are excellent Change control strategy module 104 and micro-base station communication resource module 105, wherein micro-base station grade content network is sliced management module 102 Including：Content network slice is searched and record sub module 1021, the synchronous submodule 1022 of content network slice, content caching submodule Block 1023, content update submodule 1024, content network slice generate control strategy receiving submodule 1025.Micro-base station grade content Network is sliced cache optimization control strategy module 104：Control strategy exports and distribution submodule 1041, content network slice Control strategy submodule 1042, control parameter generates submodule 1043, status information capture and analysis submodule 1044, therein Content network slice control strategy submodule 1042 specifically includes：Static content network is sliced control strategy unit 10421 and moves State content network is sliced control strategy unit 10422.
Wherein, the major function of each function module is as follows：
Content service request receives and respond module 101：This module, which receives, comes user terminal or micro-base station/wireless access The content service request of point extracts content identification information based on content service request, content identification information is sent to micro-base station The content network slice of grade content network slice management module 102 is searched and record sub module 1021；It is sliced according to content network The content network slice information lookup result that lookup and record sub module 1021 are fed back, to the micro- base for sending content service request Stand/wireless access point or user terminal send the content service request lookup result message of the content service request.
Micro-base station grade content network is sliced management module 102：This module complete content network slice record, update and Locating function.
Content network slice is searched and record sub module 1021：For the affiliated content caching of minute book micro-base station grade controller The content network slice information of all the elements of storage；According to the content identification information extracted from content service request, search Corresponding content network slice information, wherein content network slice information includes but not limited to the corresponding content caching of the content Resource information and communication resource information；It is excellent according to macro base station controller or the micro-base station grade content network of this micro-base station slice caching Change the content network slice information that control strategy module generates, updates content network slice information；It receives and according to from content The content network that network slice generates system administration manager is sliced synchronized update maintenance request message and macro base station controller or sheet The content network that the synchronous submodule 1022 of content network slice of controller is sent is sliced synchronized update maintenance request message, update Content network slice information in this submodule.
Content network slice generates control strategy receiving submodule 1025：Content for receiving the transmission of macro base station controller Cache optimization control result information, and according to the optimal control result information, output content network slice generate control information and Content network slice generation control information is sent to content update submodule 1024 and micro-base station is led to by content network slice information Believe resource module 105, content network slice information is sent to the lookup of content network slice and record sub module 1021.
Content update submodule 1024：For generating control strategy receiving submodule 1025 according to from content network slice Or the content network slice of micro-base station grade content network slice cache optimization control strategy module 104 generates control information, control Content caching submodule 1023 belonging to micro-base station completes controlled content cache management mechanism, is carried out to the content of its content caching Optimization resetting；The content caching management rule that can also be given according to this micro-base station grade controller, executes for different contents Different autonomous content caching administrative mechanisms, content caching administrative mechanism include that content insertion mechanism and content remove mechanism.It is interior It includes but not limited to the contents insertion mechanisms such as probability caching, random cache to hold insertion mechanism, and content removal mechanism includes but unlimited Mechanism is removed in LRU, LFU or according to the caching of time cycle property removal content.
Content network slice synchronizes submodule 1022：Receive the content network from macro base station grade controller or this controller It is sliced synchronized update maintenance request message, the content network slice information in message is sent to the lookup of content network slice and note Submodule 1021 is recorded, control content network slice is searched and record sub module 1021 completes corresponding content network slice information Synchronized update process.
Content caching submodule 1023：For being based on content update submodule 1024 control is generated for content network slice The autonomous content caching administrative mechanism that the corresponding controlled content cache management mechanism of information or this micro-base station grade controller give, Cache contents information.Specifically, it can be sliced according to content network and generate control information, complete the caching weight to specifying content It sets, that is, executes controlled buffer update mechanism；According to the autonomous content caching managing control information of this micro-base station grade controller, to this The content information stored in submodule executes the content caching update mechanism of micro-base station grade controller autonomous control.
Communication module 103：It completes between micro-base station grade controller and macro base station grade controller, micro-base station and micro-base station/nothing The information of control plane and user plane between line access point, between micro-base station grade controller and user terminal controller is handed over Mutually.
Micro-base station grade content network is sliced cache optimization control strategy module 104：The completion of this module is regarded based on micro-base station grade The content network at angle is sliced cache optimization control strategy, and the function of each submodule of this module is as follows：
Status information capture and analysis submodule 1044：Content network needed for acquisition is sliced relevant system mode letter Breath, user terminal number information that the micro-base station including but not limited to based on this micro-base station visual angle is controlled, micro-base station/wirelessly connect Group between networking status information, micro-base station between access point and the networking status information of user terminal, controlled user terminal The use state information in the content caching area of net state information and each user terminal controller, the current communication money of analysis system Source status information, content resource status information and content service request status information, provide the network model at this micro-base station visual angle Type, content service request analysis result, the network parameter and content parameters of output system；By above-mentioned status information and its analysis Result information is reported to the macro base station grade controller belonging to it.
Control parameter generates submodule 1043：The network parameter exported according to status information capture and analysis submodule 1044 And content parameters, generate the input control parameter that content network slice control strategy submodule 1042 needs.
Content network is sliced control strategy submodule 1042：This submodule includes mainly excellent when content network slice generates Change control algolithm, including static content network slice control strategy unit 10421 and dynamic content network are sliced control strategy list Member 10422.
Static content network is sliced control strategy unit 10421：The input control of submodule 1043 is generated according to control parameter Parameter processed is inputted with specific network performance index and/or user content Service Quality Metrics target as an optimization based on part The restrictive condition of the configuration parameter of control parameter and/or system as an optimization is completed to be sliced for the content network of specific content Optimize generating process；The content network slice for the specific content that output system is supported, each content network slice include needing to divide The communication resource and content caching resource of the dispensing content.
Dynamic content network is sliced control strategy unit 10422：According to the content service request of user, according to control parameter The input parameter of submodule 1043 is generated, specific network performance index and/or user content Service Quality Metrics is based on, is based on The restrictive condition of the configuration parameter of part input control parameter and/or system as an optimization, it is excellent to carry out the caching based on the content Change and place decision, completes to generate for the content network slice optimization of single content, export the content caching money based on the content The optimal control result information in source and the communication resource.
Control strategy exports and distribution submodule 1041：Reception content network is sliced 1042 output of control strategy submodule The optimal control result information of content caching resource and the communication resource, generate content network slice information based on single content and Content network slice generates control information, and content network slice information and content network slice are generated control information and are distributed to With the relevant micro-base station grade controller of optimal control result, wireless access point controller and user terminal controller.
Micro-base station communication resource module 105：This module receives control strategy output and the content network of distribution submodule is cut Piece generates control information, and providing content network according to the information for content service is sliced the corresponding communication resource, and main includes using The communication resource, macro base station between family and micro-base station and the communication resource between micro-base station and micro-base station and micro-base station/wireless The communication resource between access point.
It is the illustrative view of functional configuration of wireless access point controller in the embodiment of the present invention referring to Figure 11, Figure 11.This control Device completes the content network slice based on wireless access point visual angle and generates relevant control function, including：Content service request connects It receives and respond module 111, content network slice management module 112, communication module 113, wireless access point content network slice is slow Deposit Optimal Control Strategy module 114 and wireless access point communication resource module 115.Wherein, content network is sliced management module 112 It specifically includes：Content network slice is searched and record sub module 1121, the synchronous submodule 1122 of content network slice, content caching Submodule 1123, content update submodule 1124, content network slice generate control strategy receiving submodule 1125；Wireless access Point content network slice cache optimization control strategy module 114 can specifically include：Control strategy exports and distribution submodule 1141, content network is sliced control strategy submodule 1142, and control parameter generates submodule 1143, status information capture and analysis Submodule 1144, content network slice control strategy submodule 1142 therein include：Static content network is sliced control strategy Unit 11421 and dynamic content network slice control strategy unit 11422.
Wherein, the major function of each function module is as follows：
Content service request receives and respond module 111：This module, which receives, comes user terminal or micro-base station/wireless access The content service request of point extracts content identification information based on content service request, content identification information is sent to content net Network is sliced the lookup of content network slice and the record sub module 1121 of management module 112；It is sliced according to content network and searches and remember Record submodule 1121 feed back content network slice information lookup result, to send content service request micro-base station/wirelessly connect Access point or user terminal send the content service request lookup result message of the content service request.
Content network is sliced management module 112：This module completes record, update and the lookup work(of content network slice Energy.
Content network slice is searched and record sub module 1121：For being deposited in the affiliated content caching of minute book wireless access point The content network slice information of all the elements of storage；According to the content identification information extracted from content service request, phase is searched The content network slice information answered, wherein content network slice information includes but not limited to the corresponding content caching money of the content Source information and communication resource information；It is sliced according to macro base station grade controller or the wireless access point content network of this wireless access point The content network slice information that cache optimization control strategy module 114 generates updates content network slice information；Receive simultaneously basis The content network slice synchronized update maintenance request message and macro base station grade for generating system administration manager are sliced from content network The content network slice synchronized update maintenance request that the synchronous submodule of the content network of controller or this controller slice is sent disappears Breath, updates the content network slice information in this submodule.
Content network slice generates control strategy receiving submodule 1125：Content for receiving the transmission of macro base station controller Cache optimization control result information, and according to the optimal control result information, output content network slice generate control information and Content network is sliced generation control information and is sent to content update submodule 1124, by content net by content network slice information Network slice information is sent to the lookup of content network slice and record sub module 1121.
Content update submodule 1124：For generating control strategy receiving submodule 1125 according to from content network slice Or the content network slice of wireless access point content network slice cache optimization control strategy module 114 generates control information, control Content caching submodule 1123 belonging to wireless access point processed completes controlled content cache management mechanism, in its content caching Appearance optimizes resetting；The content caching management rule that can also be given according to this wireless access point controller, for different Content executes different autonomous content caching administrative mechanisms, and content caching administrative mechanism includes that content insertion mechanism and content remove Mechanism.Content insertion mechanism includes but not limited to the contents insertion mechanisms such as probability caching, random cache, and content removes mechanism and includes But the caching for being not limited to LRU, LFU or removing content according to time cycle property removes mechanism.
Content network slice synchronizes submodule 1122：Receive the content network from macro base station grade controller or this controller It is sliced synchronized update maintenance request message, the content network slice information in message is sent to the lookup of content network slice and note Submodule 1121 is recorded, control content network slice is searched and record sub module 1121 completes corresponding content network slice information Synchronized update process.
Content caching submodule 1123：For being based on content update submodule 1124 control is generated for content network slice The autonomous content caching administrative mechanism that the controlled content cache management mechanism of information or this wireless access point controller give, delays Deposit content information.Specifically, it can be sliced according to content network and generate control information, completed to specifying the caching of content to reset, Execute controlled buffer update mechanism；According to the autonomous content caching managing control information of this wireless access point controller, to this The content information stored in submodule executes the content caching update mechanism of wireless access point controller autonomous control.
Communication module 113：For completing between wireless access point controller and macro base station grade controller, wireless access point with Control plane and user between micro-base station/wireless access point, between wireless access point controller and user terminal controller is flat The information exchange in face.
Wireless access point content network is sliced cache optimization control strategy module 114：This module is completed to be based on wireless access The content network at base site controller visual angle is sliced cache optimization control strategy.Wherein, the function of each submodule is as follows：
Status information capture and analysis submodule 1144：Content network needed for acquisition is sliced relevant system mode letter Breath, the user terminal number letter that the wireless access point including but not limited to based on this wireless access point controller visual angle is controlled Networking status information, the networking status information of wireless access point and user terminal between breath, wireless access point/micro-base station, institute The use state information of the content caching of the networking status information and each user terminal controller between user terminal is controlled, point The current communication resource status information of analysis system, content resource status information and content service request status information, provide this nothing Network model type, the content service request analysis result at line access point controller visual angle, the network parameter of output system and interior Hold parameter；By above-mentioned status information and its analysis result information reporting to the macro base station grade controller belonging to it.
Control parameter generates submodule 1143：The network parameter exported according to status information capture and analysis submodule 1144 And content parameters, generate the input control parameter that content network slice control strategy submodule 1142 needs.
Content network is sliced control strategy submodule 1142：This submodule includes mainly excellent when content network slice generates Change control algolithm, including static content network slice control strategy unit 11421 and dynamic content network are sliced control strategy list Member 11422.
Static content network is sliced control strategy unit 11421：The input control ginseng of submodule is generated according to control parameter Number is based on part input control with specific network performance index and/or user content Service Quality Metrics target as an optimization The restrictive condition of the configuration parameter of parameter and/or system as an optimization completes the content network slice optimization for specific content Generating process；The content network slice for exporting corresponding specific content, export content caching resource based on the specific content and The optimal control result information of the communication resource.
Dynamic content network is sliced control strategy unit 11422：According to the content service request of user, according to control parameter The input parameter of submodule 1143 is generated, specific network performance index and/or user content Service Quality Metrics conduct are based on Optimization aim, the restrictive condition of the configuration parameter based on part input control parameter and/or system as an optimization carry out being based on being somebody's turn to do The cache optimization of content places decision, completes to generate for the content network slice optimization of single content, output is based on the content Content caching resource and the communication resource optimal control result information.
Control strategy exports and distribution submodule 1141：Reception content network is sliced 1142 output of control strategy submodule The optimal control result information of content caching resource and the communication resource generates content network slice information and content based on content Network slice generate control information, and by content network slice information and content network slice generate control information be distributed to it is excellent Change the relevant micro-base station grade controller of control result, wireless access point controller and user terminal controller.
Wireless access point communication resource module 115：This module receives control strategy output and distributes the interior of submodule 1141 Content network slice generates control information, and providing content network according to the information is sliced the corresponding communication resource, includes mainly this nothing Between line access point and macro base station, between this wireless access point and micro-base station/wireless access point, this wireless access point and user it Between the communication resource.
It is the illustrative view of functional configuration of user terminal controller in the embodiment of the present invention referring to Figure 12, Figure 12.User terminal Controller mainly completes to be based on user terminal controller visual angle, status information capture and analysis, content obtaining to user terminal, Lookup, synchronization, management and the optimization based on content network slice optimal control result to cache contents of content network slice The content networks such as resetting are sliced relevant control function.This controller includes message generation and receiving module 121, content obtaining mould Block 122, content user terminal network slice management module 123, communication module 124, status information capture and analysis module 125, User terminal communication resource module 126, content user terminal network slice management module 123 therein specifically include：Content net Network slice is searched and record sub module 1231, the synchronous submodule 1232 of content network slice, content caching submodule 1233, content Submodule 1234 is updated, content network slice generates control strategy receiving submodule 1235.
Wherein, the major function of each function sub-modules is as follows：
Status information capture and analysis module 125：It acquires relevant with system generation content network slice in user terminal Status information, the information include but not limited to the location information and its affiliated content caching use state letter of this user terminal Networking status information, this user terminal and its adjacent use between breath, this user terminal and its affiliated micro-base station/wireless access point Networking status information of family terminal etc., and by above-mentioned status information and its analysis result information reporting to the micro-base station control belonging to it Device/wireless access point controller processed.
Message generates and receiving module 121：According to the content information that user wants to obtain, corresponding content service request is generated Message；Receive the content service request information from its neighboring user terminals.
Content obtaining module 122：This module is sliced the content net in lookup and record sub module 1231 according to content network Network slice information obtains the content information of user terminal requests in systems in corresponding content caching.
Content user terminal network is sliced management module 123：This module completes the record of content network slice information, update And locating function.
Content network slice generates control strategy receiving submodule 1235：Micro-base station grade controller/nothing is come from for receiving The content caching optimal control result information of line access point controller generates content network slice and generates control information and content net Content network is sliced generation control information and is sent to content update submodule 1234 and user terminal communication money by network slice information Content network slice information is sent to the lookup of content network slice and record sub module 1231 by source module 126.
Content update submodule 1234：Reception content network slice generates the content net that control strategy receiving submodule is sent Network slice generates control information, completes controlled content update mechanism according to the information, control content cache sub-module 1233 updates Its content cached receives the content caching update rule of the given autonomous control of this controller, completes to content caching submodule The content update of block 1233.
Content network slice is searched and record sub module 1231：This module is cut for recording, searching and updating content network Piece information.Specifically, the content network slice information in minute book user terminal；According to from the content service request received The content identification information of extraction searches corresponding content network slice information, wherein content network slice information in this module Including but not limited to content caching resource information and communication resource information；It is controlled from its affiliated micro-base station grade according to receiving The content network slice information that the content network slice cache optimization control strategy module of device/wireless access point controller generates, Update the content network slice information of corresponding content in this module；According to from its affiliated micro-base station grade controller/wireless access The content network of base site controller is sliced synchronized update maintenance request message, updates this mould content network slice information in the block.
Content network slice synchronizes submodule 1232：Micro-base station grade controller/wireless access point is come from according to what is received The content network of controller is sliced synchronized update maintenance request message, and the content network slice completed in user terminal is searched and remembered Record the synchronized update process of the content network slice information of submodule 1231.
Content caching submodule 1233：Content information for caching this user terminal.Specifically, it receives and basis comes from The content network slice of content update submodule 1234 generates the corresponding content caching operation information of control information, completes to specified The cache optimization of content is reset；Reception content updates the autonomous control content caching update rule of submodule 1234, to this module Content information carry out autonomous content update, content update mechanism includes that content insertion mechanism and content remove mechanism, wherein interior It includes but not limited to the contents insertion mechanisms such as probability caching, random cache to hold insertion mechanism, and content removal mechanism includes but unlimited Mechanism is removed in LRU, LFU or according to the content of time cycle property removal cache contents.
Communication module 124：For micro-base station controller/wireless access point belonging to complete cost user terminal controller and its The information exchange of the control plane and user plane that are carried out between controller and this user terminal and the user terminal of its neighbour.
User terminal communication resource module 126：By communication module 124, receives and generate control from content network slice The content network slice of Policy receipt submodule 1235 generates information, and be sliced generation information based on content network carries for content information It is sliced the corresponding communication resource for content network, including but not limited between this user terminal and micro-base station/wireless access point Communication money between the communication resource and this user terminal and user terminal between the communication resource, this user terminal and macro base station Source.
In the another aspect of the embodiment of the present invention, the mobile radio access network content network slice life of content oriented business It is mainly used in completion system be sliced relevant maintenance management with content network at system administration manager, may include following functions：
(a) initialization procedure:The initiation parameter for completing this system is arranged, the main parameter inputted including system needs, The QoS of customer index of support and Initialize installation with the relevant network performance index of content service；
(b) control model configuration process：The control model of completion system configures, the main static state for including content oriented business Mobile radio access network content network is sliced generation pattern and dynamic mobile Radio Access Network content network slice generates mould The configuration process of formula；
(c) content caching control model configuration process：To the administrative mechanism pattern of the content caching of deployment in completion system Selection and Parameter Configuration process, main control model selection course including controlled content cache management mechanism and from main contents The control model selection course of cache management mechanism；
(d) content network slice information synchronized update process：The synchronization of all the elements network slice information in completion system Renewal process.Wherein, content network slice information refers to the optimum way information of acquisition specific content in systems, including but not Be limited to the content identification number, the content storage content caching submodule mark and reach the content caching submodule Optimal path, optimal path here refer to path when user terminal obtains the content, can be according to different optimization aims Optimal path is chosen, for example, if obtaining the minimum cost target as an optimization of content with user terminal, it can be according to local It obtains, neighboring user terminals obtain, the micro-base station that is connected from this user terminal obtains, it is micro- to be connected by this user terminal The order that base station is obtained from macro base station is ranked up.
In the embodiment of the present invention, on the user plane, the visual angle based on functional entity may include communication layer and content Cache plane.
In the present system, the functional entity on communication layer being related to includes macro base station, micro-base station, wireless access point and use Bidirectional communication link, micro-base station between the communication function entity and macro base station and micro-base station/wireless access point of family terminal with The two-way communication of bidirectional communication link, micro-base station between micro-base station/wireless access point/between wireless access point and user terminal Bidirectional communication link between link, user terminal and user terminal.Wherein, between macro base station and micro-base station/wireless access point Bidirectional communication link, the bidirectional communication link between micro-base station and micro-base station/wireless access point can be wireless communication link, Can also be wired communications links.
In content caching plane, including the content that is deployed on macro base station, micro-base station, wireless access point and user terminal Caching.
In the present system, content caching supports content caching administrative mechanism, including content insertion mechanism and content to remove machine System, wherein content insertion mechanism is divided into controlled content insertion mechanism and from main contents insertion mechanism, and content removes mechanism and is divided into Mechanism is removed at controlled content and removes mechanism from main contents.
Controlled content is inserted into and controlled content removal mechanism refers to that this content caching is slow according to the content of its affiliated controller Optimal control is deposited as a result, for the content caching optimization resetting that the particular cache unit of content caching, specific content carry out, i.e., this Partial content buffer unit is controlled optimization placed content, not by radom insertion, probability be inserted into etc. contents insertion mechanism and The contents such as LFU, LRU remove the influence of mechanism.
It refers to that local content cache is controlled by its affiliated controller to be inserted into from main contents and remove mechanism from main contents, can With usually supported according to content caching radom insertion, probability be inserted into etc. the contents such as contents insertion mechanism and LFU, LRU remove machine System, the mechanism that the content that it is cached is updated.
The embodiment of the present invention is based on above-mentioned two classes content caching update mechanism, can be by each content caching in system Spatial cache is arranged to two parts, and a part is that content caching is controlled by its affiliated controller, and user equipment can manage independently The part of its content cached, the content caching referred to as managed independently；Another part is controllable by the content of content oriented business The controller control of network slice optimization generation system, user equipment can not autonomous control its content update content caching, claim For the content caching of controlled management, specifically, the content that the content caching of controlled management refers to this part content caching is inserted into The content resource distribution being only controlled by when system generates content network slice is removed with content, is sliced and is generated only according to content network Information is controlled, the content caching of corresponding content caching optimization resetting is completed.
Correspondingly, in some embodiments of the invention, referring to Figure 13, this method can also include：
S131：First controller receives the content network slice synchronized update dimension that second controller/third controller is sent Request message is protected, and corresponding content network is sliced according to the content identification information in synchronized update maintenance request message Information synchronizes update.
Specific implementation procedure example is referring to above-described embodiment, and details are not described herein.
As an example, below by way of the content network of a content service request for carrying out user terminal in this system Slice information query process and the content network based on mobile radio access network carried out for the content service request are sliced Generating process, to illustrate the information interactive process in the system between each functional entity.
Under network scenarios shown in Fig. 2, when user equipment S1 sends out a content service request, system will be based on this Request triggers the search process to the corresponding content network slice information of the content, and after search process, system will be completed Content network slice in mobile radio access network based on this search result generates updated with content network slice Journey.Specifically, the above process includes the following steps：
Step 1：The user terminal controller of S1 according to the operation of user's request content, message generate and receiving module in Content service request message is generated, content identification information is extracted, and content identification information is sent to the content user terminal of S1 Network is sliced management module；The content network slice management module of the user terminal of S1 is sliced in its content network to be searched and records The content network slice information corresponding to the content is searched in submodule, if finding the content network slice information, from Content network slice is searched and record sub module is generated to message and receiving module sends content search success message, and terminates this Secondary content search executes step 7-1-1；If not finding the content network slice information, step 2 is carried out.
Step 2：The message that content service request message is sent to its neighboring user terminals by S1 by communication module generates And receiving module；The message of neighboring user terminals generates and receiving module receives the content service request, extraction content identification letter Breath, the content network that content identification information is sent to its user terminal are sliced management module；The content net of neighboring user terminals Network is sliced management module and is sliced the content network slice carried out in lookup and record sub module based on the content in its content network Information searching, meanwhile, content search response message is sent to the message generation of S1 and receiving module；If multiple neighbor users are whole End all finds the content network slice information, then S1 selects one of user terminal, allows the user terminal by the content net Network slice information feeds back to S1 according to original route, and content information search terminates, and executes step 7-1-2；If the neighbor user of S1 Terminal does not find the content network slice information, then sends content search failed message to S1, meanwhile, S1 executes step Rapid 3.
Step 3：S1 based at present with oneself have the networking status information between the neighboring user terminals of communication association, select The user terminal of the highest user equipment S2 of angle value in its neighboring user terminals, S1 send content service request message to S2；S2 Message generate and receiving module receive the content service request, content service request message is sent to and communicates pass with it by S2 The neighboring user terminals of connection；The message of the neighboring user terminals of S2 generates and receiving module receives the content service request, extracts Content identification information, the content network that content identification information is sent to the content network slice management module of its user terminal are cut Piece is searched and record sub module, and content network slice is searched and record sub module lookup is sliced corresponding to the content network of the content Information, while content search response message is sent to S2；If the neighboring user terminals of S2 find content network slice Information, then S2 select one of user terminal, allow the user terminal by its communication module by content network slice information S2 is fed back to according to original route, then content network slice information is fed back to S1 by S2 again, this content search terminates, and executes Step 7-1-2；If the neighboring user terminals of S2 do not find content network slice information, the neighboring user terminals of S2 to S2 feedback contents search failed message, when all neighboring user terminals of S2 do not find the content network slice information, S2 Failed message is searched to S1 feedback contents, the mark of the content can not be found in the message in user class containing S2, then S1 is held Row step 4.
Step 4：User terminal S1 receive S2 transmission can not user class find the content mark content search Failed message shows that this content service request is unable to get satisfaction in active user's grade of system, then user terminal S1 is by content Service request information is sent to the micro-base station controller/wireless access point controller (SBS1/AP1) being attached thereto.SBS1/AP1 Content service request receive and respond module receives the content service request message, content identification information is extracted, by content Identification information is sent to the content network slice management module of micro-base station controller/wireless access point controller of SBS1/AP1 Content network slice is searched and record sub module, and content network slice is searched and record sub module searches the corresponding content of the content Network slice information, if finding the content network slice information, SBS1/AP1 sends content search success message to S1, This content search terminates, and executes step 7-2；If SBS1/AP1 does not find the content network slice information, execute Step 5.
Step 5：Content service request message is sent to by micro-base station controller/wireless access point controller of SBS1/AP1 The content service request of the neighbours SBS/AP of SBS1/AP1 receives and respond module, and content service request receives and respond module carries Content identification information is taken, the content network that content identification information is sent to its micro-base station/wireless access point is sliced management module Content network slice search and record sub module, content network slice search and record sub module search the content it is corresponding in Content network slice information, meanwhile, it sends content search response message and gives SBS1/AP1 controllers, if multiple SBS/AP are found The content network slice information, SBS1/AP1 then select one of SBS/AP, it is allowed to feed back to content network slice information SBS1/AP1, content search terminate, and execute step 7-2；If the neighbours SBS/AP of SBS1/AP1 does not find the content net Network slice information, then SBS/AP is to the controller of SBS1/AP1 transmission content search failed message, execution step 6.
Step 6：The controller of SBS1/AP1 receives the content search failed message of each SBS/AP feedbacks, shows the content Service request is unable to get satisfaction in the current micro-base station grade of system, then SBS1/AP1 by the content service request of S1 be sent to Its connected macro base station controller, the content service request in macro base station controller receives and respond module receives the content service Content identification information is extracted in request, and content identification information is sent to the content net that macro base station content network is sliced management module Network slice is searched and record sub module, and content network slice is searched and record sub module finds content net corresponding with the content The content network slice information is sent to SBS1/AP1 by network slice information, this content search terminates, and executes step 7-3.
Step 7-1-1：The content network slice of user terminal controller S1 is searched and record sub module passes through communication module The content network slice information found is sent to content obtaining module, content obtaining module is sliced according to the content network to be believed Breath obtains the content information from the content caching submodule that content user terminal network is sliced in management module, obtains content After information is completed, content obtaining module is sliced the content network in management module to content user terminal network and is sliced same step Module sends content synchronization fresh information, and micro-base station controller/nothing that synchronous submodule is connected to it is sliced from content network Line access point controller sends the content network based on the content and is sliced synchronized update maintenance request message；Execute step 8.
Step 7-1-2：The content network slice of the user terminal controller of S1 is searched and record sub module is by communicating mould Block receives the content network slice information of neighboring user terminals feedback, which is sent to content obtaining mould Block, while storing or updating and being sliced in lookup and record sub module the content network slice letter based on the content in content network Breath；The content obtaining module of the user terminal controller of S1 obtains the content information according to the content network slice information；It obtains After content information is completed, content obtaining module is sliced the content network slice in management module together to content user terminal network Step module sends content synchronization fresh information, and synchronous submodule is sliced to micro-base station controller/wireless access from content network Base site controller sends the content network based on the content and is sliced synchronized update maintenance request message；Execute step 8.
Step 7-2：Dynamic content network slice in micro-base station controller/wireless access point controller of SBS1/AP1 is excellent Change search result of the control strategy unit according to the above network slice information, based on the communication resource for obtaining the content information With the content caching resource identification information for having the content information, completes the slice optimization of the content network based on the content and generated Journey exports to control strategy and distributes content caching optimal control when submodule exports the content network slice generation of the content Result information；Control strategy exports and distribution submodule is according to the content caching optimal control result information, to optimal control knot The relevant micro-base station controller/wireless access point controller of fruit and user terminal controller output content network slice generate control Information, with the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/or user terminal control Device processed is completed to be sliced the cache contents optimization resetting for generating control information and communication resource distribution based on the content network；Meanwhile The control strategy of micro-base station controller/wireless access point controller exports and distribution submodule be sliced to its content network search and Record sub module and user terminal S1 export the content network slice information of the content, contain needle in the content network slice information The content caching resource information distributed and communication resource information are needed to the content system, and obtain the side of the content information Formula；The content network slice of micro-base station controller/wireless access point controller is searched and record sub module record update is corresponding Content network slice information.
The content network slice of the user terminal controller of S1 generates control strategy receiving submodule and passes through user terminal Communication module receives the content network slice information from micro-base station controller, sends that information to content obtaining module, interior Hold acquisition module according to the content network slice information, obtains corresponding content information；After obtaining content completion, user terminal The synchronous submodule of content network slice that the content obtaining module of S1 is sliced to content user terminal network in management module is sent Content network is sliced updating maintenance solicited message, is controlled from the synchronous submodule of the content network of user terminal slice to micro-base station It is synchronous more that the synchronous submodule of content network slice of device/wireless access point controller sends the content network slice based on the content New maintenance request message；The synchronous submodule of content network slice of micro-base station controller/wireless access point controller receives content Network is sliced synchronized update maintenance request message, is sliced to content network and generates content of the system administration manager transmission based on the content Network is sliced synchronized update maintenance request message, is sliced containing this dynamic content network in the message and optimizes generating process ID, the content identification information of optimization and corresponding to the content network slice information after the content optimization；Execute step 8.
Step 7-3：Macro base station controller is according to the search result of the above information, based on obtaining the logical of the content information Letter resource identification information and the content caching resource identification information for having the content information start the slice control of its dynamic content network Policy unit processed is completed to generate for the content network slice optimization of the mobile radio access network of the secondary content service request Journey exports to control strategy and distributes content caching optimal control knot when submodule output content network slice optimization generates Fruit；Control strategy exports and distribution submodule is based on the content caching optimal control result information, generates content network slice life At control information and content network slice information；Control strategy exports and content network is sliced and generates control letter by distribution submodule Breath is sent to and this relevant micro-base station of optimal control result and/or the control of wireless access point controller and/or user terminal Device is completed with this relevant micro-base station of optimal control result and/or wireless access point controller and/or user terminal controller The cache contents optimization resetting for generating control information and communication resource distribution are sliced based on the content network；Control strategy export and Content network slice information is fed back to user terminal S1 by distribution submodule by communication module；Control strategy exports and distribution Content network slice information is sent to the lookup of content network slice and the record sub module of macro base station, content network slice by module Search the content network slice information that the content is updated with record sub module.
The content network slice of the user terminal controller of S1 generates control strategy receiving submodule and receives the content network Slice information, sends it to content obtaining module, and content obtaining module obtains the content according to the content network slice information Information；After obtaining content information completion, the content obtaining module of user terminal S1 is sliced to content user terminal network to be managed The synchronous submodule of mould content network slice in the block sends content network and is sliced updating maintenance solicited message, and user terminal S1's is interior The synchronous submodule of content network slice is sliced synchronous submodule hair to the content network of micro-base station controller/wireless access point controller The content network based on the content is sent to be sliced synchronized update maintenance request message；Micro-base station controller/wireless access point controller The synchronous submodule of content network slice receive to carry out the content network slice synchronized update maintenance request of user terminal S1 and disappear Breath carries out it merging that corresponding content caching optimal control process when generating is sliced based on content network, after merging Content network slice synchronized update maintenance request message is sent to the macro base station controller belonging to it, macro base station controller to its into Row is sliced the merging of corresponding content caching optimal control process when generating based on content network, and the content network after merging is cut Piece synchronized update maintenance request message is sent to content network slice and generates system administration manager, includes but not limited to this in the message The ID of the secondary dynamic content network slice creation process based on macro base station controller visual angle, corresponding content identification information and right It should be in the content network slice information after the content optimization；Execute step 8.
Step 8：This content network slice generates and the synchronized update process of content network slice terminates.
In the mobile radio access network content network slice generation system of content oriented business, it can support for use The optimization generation method that the content service request at family, the dynamic content network based on specific content network slice are sliced, can also It supports based on the optimization aim centered on network, the optimization based on the static content network of all the elements or partial content slice Generation method, for example, can select with optimize the load between the flow on particular link, balanced cell, reduce by micro-base station/ Wireless access point is to the target as an optimization such as the content service request of macro base station, all the elements or partial content in optimization system Content network be sliced corresponding resource allocation.
Optionally, in some embodiments, referring to Figure 14, the first controller is acquired according to the determination of corresponding control parameter Whether the system performance index of status information instruction reaches preset threshold value, and in not up to preset threshold value, triggering is using quiet State content network slice optimization generation method generates mobile radio access network content network slice.
According to corresponding control parameter, optimization generation method is sliced using static content network and generates mobile wireless access network Network content network is sliced, including：
S141：Optimization aim is determined according to network parameter and content parameters, and obtains the status information to being acquired in advance Predetermined threshold value configured, corresponding.
S142：According to optimization aim, corresponding predetermined threshold value, taken based on target network performance indicator and/or user content Quality index of being engaged in obtains all or part of content progress content network slice cached in mobile radio access network Multiple content network slices.
Wherein, optimization aim includes but not limited to：Hit rate of each content in the content service request of user class, communication The access delay of the resource usage amount, the utilization rate of communication link, content of link；
Corresponding predetermined threshold value includes but not limited to：Predetermined threshold value corresponding with the bandwidth of communication link is accessed with content The corresponding predetermined threshold value of maximum hop count, with obtain the corresponding predetermined threshold value of the value at cost of content.
Optionally, in some embodiments, it is cut using dynamic content network according to corresponding control parameter referring to Figure 15 Piece optimizes the content network that generation method generates in mobile radio access network and is sliced, including：
S151：The content service request belonging to the content service request status information is received, requested content is obtained Message identification.
S152：Optimization aim is determined according to the network parameter and content parameters, and is obtained in advance to described acquired Predetermined threshold value that status information is configured, corresponding.
S153：According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or use Indoor appearance Service Quality Metrics, the content network that the content is generated to requested content in the mobile radio access network are cut Piece obtains the single content network slice based on the content.
Wherein, the optimization aim includes but not limited to：Each content the content service request of user class hit rate, The access delay of the resource usage amount, the utilization rate of communication link, content of communication link；
The corresponding predetermined threshold value includes but not limited to：Predetermined threshold value corresponding with the bandwidth of communication link and content The corresponding predetermined threshold value of maximum hop count of access, predetermined threshold value corresponding with the value at cost of content is obtained.
As an example, system is provided individually below, and movement is generated using static content network slice optimization generation method The content network of Radio Access Network is sliced and generates mobile wireless access using dynamic content network slice optimization generation method The implementation of the content network slice of network, is not restricted this.
It is understood that since two kinds of content network slice optimization generation methods are that information is collected and divided based on system It is completed on the basis of analysis, meanwhile, system is after completing a content network slice optimization generation method, due to user terminal Mobility, the administrative mechanism of content caching at different levels, content network can be caused to be sliced corresponding copy of content number in system and become Change, to influence the content resource of system for content network slice, in final influence system with the relevant system performance index of content, Therefore, propose that a kind of information collection and analytic process illustrate static content network respectively on this basis in the embodiment of the present invention Slice optimization generation method and the content network of dynamic content network slice optimization generation method and system are sliced synchronized update The implementation procedure of method.
The information collection of system and analytic process can include specifically in macro base station controller in the embodiment of the present invention Information collection and analytic process, the information collection in the micro-base station controller and letter in analytic process, wireless access point controller Breath acquisition and analytic process and the information collection in user terminal controller and analytic process.
(1) information collection in macro base station controller and analytic process
S161：Information collection and analysis module in macro base station controller acquire and monitor the status information of system.
Status information includes mainly and the relevant status information of content, communication resource status information, wherein related to content Status information include but not limited in content service request information on load, the hit rate information of content service request, system Content caching use state information and user terminal belonging to content popularit information, this macro base station controller is due to executing certainly The synchronous wiping of content network slice reported after the specific content copy in its content caching is wiped caused by master cache administrative mechanism Except message, communication resource status information include but not limited to load balancing state information between each cell belonging to macro base station, Micro-base station/wireless access point to the link load status information between macro base station/with the relevant link load status information of content, Link load status information/between micro-base station/wireless access point and the relevant link load status information of content and system Network connection topology information between middle macro base station, micro-base station/wireless access point etc..
S162：Information collection and analysis module are to being collected into and the relevant status information of content and communication resource status letter Breath is analyzed.
S163：Judge preset in system with whether the relevant performance indicator of content and/or network performance index meet Threshold requirement.
If not meeting threshold requirement, S161 is executed, information collection and analysis module continue to acquire and monitor system shape State information；If meeting threshold requirement, S164 is executed.
S164：The static content network started in macro base station controller is sliced Optimal Control Strategy unit, to the institute of system There is the content network of content or partial content slice to optimize.
It is the information collection of macro base station grade controller and analysis process signal in the embodiment of the present invention referring to Figure 16, Figure 16 Figure.
(2) information collection in micro-base station controller and analytic process.
S171：Information collection and analysis module in micro-base station controller acquire and monitor the status information of system.
Wherein, status information includes mainly and the relevant status information of content and communication resource status information, wherein with it is interior Hold the hit rate that relevant status information includes but not limited to the content service request information on load of micro-base station, content service request The content caching use state information belonging to content popularit information, this micro-base station controller in information, system, user terminal It is reported to this micro-base station after wiping the specific content copy in its content caching caused by executing autonomous cache management mechanism The synchronous erasing message of content network slice of controller, communication resource status information includes but not limited to this micro-base station and macro base station Between link load state information/with the relevant link load status information of content, this micro-base station and other micro-base station/nothings Link load status information between line access point/with the relevant link load status information of content, this micro-base station to user it Between link load status information/opened up with the relevant link load status information of content, with the relevant network connection of this micro-base station Flutter the connection topology information etc. between information, this micro-base station owning user terminal.
S172：Judge whether the status information of system changes, if it is not, then executing S171, is, executes S173.
S173：The status information of changed system is sent to macro base station by information collection and analysis module.
Information collection and analysis module divide the content resource status information and communication resource status information that are collected into Analysis, and give those changed state information reports to macro base station controller in real time.
It is the information collection of micro-base station grade controller and analysis process signal in the embodiment of the present invention referring to Figure 17, Figure 17 Figure.
(3) information collection in wireless access point controller and analytic process.
S181：Information collection and analysis module in wireless access point controller acquire and monitor the status information of system.
Status information includes mainly and the relevant status information of content, communication resource status information, wherein related to content Status information include but not limited in content service request information on load, the hit rate information of content service request, system Content caching use state information, user terminal belonging to content popularit information, this wireless access point controller is due to executing The copy of content erasure information reported after the specific content copy in its content caching is wiped caused by autonomous cache management mechanism, Communication resource status information include but not limited to wireless access point to the link between macro base station load state information, wirelessly connect Link load status information/between access point and wireless access point/micro-base station and the relevant link load status information of content, nothing Line access point wirelessly connects to the link load status information between user/with the relevant link load status information of content, with this The relevant network connection topology information of access point, connection topology information of this wireless access point owning user etc..
S182：Judge whether the status information of system changes, if it is not, then executing S181, is, executes S183.
S183：The status information of changed system is sent to macro base station by information collection and analysis module.
Information collection and analysis module divide the content resource status information and communication resource status information that are collected into Analysis, and give those changed state information reports to macro base station controller in real time.
It is the information collection of wireless access point controller and analysis process signal in the embodiment of the present invention referring to Figure 18, Figure 18 Figure.
(4) information collection in user terminal controller and analytic process.
S191：Information collection and analysis module in user terminal controller acquire and monitor the system mode of user terminal Information.
Wherein, the system status information of user terminal includes communication resource status information and believes with the relevant state of content Breath, wherein communication resource status information includes but not limited between user terminal and micro-base station/wireless access point belonging to it Connection status between wireless signal strength information, user terminal and connection topology information, with the relevant status information packet of content Including but be not limited to the content caching belonging to the content request message that user terminal sends out and receive, this user terminal controller makes The information such as the popularity with status information, content.
S192：Judge whether system status information changes, if it is not, then executing S191, is, executes S193.
S193：User terminal controller report generate the system status information of variation to the micro-base station controller belonging to it/ Wireless access point controller.
Information collection and analysis module analyze above-mentioned status information, in real time by those changed system shapes State information reporting gives micro-base station controller/wireless access point controller belonging to it.
It is the information collection of user terminal controller and analysis process signal in the embodiment of the present invention referring to Figure 19, Figure 19 Figure.
It is excellent for the static content network of all the elements slice in macro base station controller completion system in the embodiment of the present invention Change generation method, the static content network slice optimization generation method of specific content is directed in micro-base station controller completion system.
The static content network slice optimization being given at individually below in macro base station controller and micro-base station controller generates The step of method.
As an example, it is the static content network of macro base station controller in the embodiment of the present invention referring to Figure 20, Figure 20 It is sliced generation method flow diagram.
S201：The information collection of macro base station controller and analysis submodule receive the system shape by micro-base station controller report State change information, and provide the particular characteristic index of system after system state change information.
System state change information therein includes but not limited to the relevant status information of content and communication resource status letter Breath, wherein the relevant status information of content includes but not limited to since user mobility or user terminal independently remove content The change information of caused specific content copy, communication resource status information include but not limited to the content of particular link in system Load state information, the load state information of particular link；Information collection and analysis submodule block analysis simultaneously provide system mode change The particular characteristic index of system after change information.
S202：Judge whether particular characteristic index reaches preset threshold value, if so, executing S201, otherwise starts static Content network slice optimization generating process, executes S203.
S203：The status information of the information acquisition module acquisition system of macro base station controller exports network parameter and content Parameter generates submodule to control parameter.
In specific implementation procedure, micro-base station/wireless access point number in acquisition system and its group net state, user The use state information of each content caching of group net state, content caching network between terminal number, subscriber terminal equipment, The content parameters of the network parameter and content caching network of submodule output system current network are generated to control parameter, wherein Network parameter include but not limited to networking topological diagram between the nodes such as macro base station, micro-base station, wireless access point, user terminal, The number of degrees of each node, center betweenness；Content parameters include but not limited to Zip parameters, the arrival rate of content service request, content The capacity etc. of number, content caching.
S204：Control parameter generates submodule and specific performance indicator and optimization limitation is selected and exported according to system mode Condition.
In specific implementation procedure, control parameter generates what submodule was exported according to status information capture and analysis module System status information, network parameter and content parameters select specific performance indicator to be sliced as this static content network excellent Change the optimization aim of generating process, selected section system status information and/or the corresponding predetermined threshold value of status information are as this Optimization restrictive condition when content network slice optimization generates, wherein optimization aim includes but not limited to each content in user Content service request hit rate, the relevant resource usage amount of the resource of particular communication links usage amount/content, the specific communications of grade The resource utilization of link/be delayed with the access of the relevant resource utilization of content, content, corresponding predetermined threshold value includes but not It is limited to：And the corresponding predetermined threshold value of the bandwidth of communication link, predetermined threshold value corresponding with the maximum hop count of content access, with obtain The corresponding predetermined threshold value of value at cost of content.Communication link bandwidth limitation include but not limited to macro base station belonging to each cell it Between the relevant load balancing state threshold information of load/content, forward pass link between micro-base station and macro base station link band Link bandwidth threshold value/load/content between the relevant load status threshold information of wide threshold value/load/content, micro-base station is related Load status threshold information arrived based on optimization aim and optimization restrictive condition output control parameter according to above-mentioned selection result Static content network is sliced Optimal Control Strategy unit.
S205：Static content network is sliced Optimal Control Strategy unit and the content network is sliced optimization generation problem conversion It is directed to all the elements in system for one, places optimization based on the cache contents of certain optimisation target and certain optimisation restrictive condition Problem completes the optimization based on above-mentioned optimization problem, and is exported to control strategy and distribute submodule output and be based on content caching The cache contents Optimal Control Strategy result information of resource and the communication resource.
It is all the elements distribution using content as the communication resource of granularity and interior that result information therein, which includes system, Hold cache resources information.
S206：Control strategy exports and distribution submodule receives cache contents optimal control as a result, being based on the optimal control Result information generates content network slice information and content network the slice generation control information corresponding to each content, and will be right The content network slice that macro base station controller should be sent in the content network slice information of each content is searched and record submodule Block, meanwhile, the corresponding content network slice of the optimal control result is also generated into control information and is sent to and optimal control result The content network of relevant micro-base station controller and/or wireless access point controller slice generates control strategy receiving submodule And/or the content network slice of user terminal controller generates control strategy receiving submodule.
S207：The content network slice of macro base station controller is searched and record sub module updates the content for all the elements Network slice information；The content network of micro-base station and/or wireless access point controller slice generates control strategy receiving submodule And/or the content network slice of user terminal controller generates control strategy receiving submodule and is cut according to the content network received Piece generates control information and carries out resource allocation, and the content network generated corresponding to each content is sliced.
Further, after content network slice creation process is completed, with this relevant micro-base station of optimal control result Controller and/or wireless access point controller and/or user terminal controller send content caching optimization to macro base station controller Reset success message.
S208：The control strategy output of macro base station and distribution submodule receive all relevant with this optimal control result The optimization of the content caching of micro-base station controller and/or wireless access point controller and/or user terminal controller, which is reset, successfully to disappear Breath.
This static content network slice optimization generating process terminates.
It should be noted that being given above the static state that the macro base station controller carried out for all the elements in system is completed The flow of content network slice optimization generation method, the static content network that can be used for macro base station for specific content are sliced Optimization generates.
It is the static content net of micro-base station controller in the embodiment of the present invention referring to Figure 21, Figure 21 as another example Network slice optimization generation method flow diagram.Include the following steps：
S211：The information collection of micro-base station controller and analysis submodule receive by its owning user terminal control unit and with The system status information of its connected micro-base station controller.
Wherein, the including but not limited to relevant status information of content and communication resource status information, wherein content is relevant Status information includes but not limited to specific content copy caused by independently removing content due to user mobility or user terminal Change information, communication resource status information include but not limited to the affiliated controller of micro-base station particular link load/content Load state information, load/content load status information of particular link；Information collection and analysis submodule block analysis simultaneously provide State the particular characteristic index of micro-base station affiliated area after state change information.
S212：The information collection of micro-base station controller and analysis submodule judge whether the particular characteristic index reaches default Threshold value, if so, execute S211, otherwise start static content network slice optimization generating process, execute S213.
S213：The information collection of micro-base station controller and analysis submodule acquire its affiliated area user terminal number, Group net state between subscriber terminal equipment, the networking status information between this micro-base station and other micro-base station/wireless access point, The use state information of each content caching of the affiliated content caching network of this micro-base station controller generates submodule to control parameter Block exports the content parameters of the current network parameter and content caching network of affiliated area.
Wherein, network parameter include but not limited to the nodes such as macro base station, micro-base station, wireless access point and user terminal it Between networking topological diagram, the number of degrees of each node, center betweenness；Content parameters include but not limited to that Zip parameters, content service are asked The utilization rate etc. of the arrival rate, content number, the popularity of content, the capacity of content caching, content caching asked.
S214：Control parameter generate the system status information that submodule exports according to status information capture and analysis module, Network parameter and content parameters select specific performance indicator to be sliced the excellent of optimization generating process as this static content network The predetermined threshold value of change target, selected section system status information and/or status information is sliced optimization life as this content network At when optimization restrictive condition, generate based on optimization aim and optimization restrictive condition and export control parameter to static content network It is sliced Optimal Control Strategy unit.
Wherein, optimization aim includes but not limited to content service request hit rate, communication chain of each content in user class The resource on road/with content relevant resource usage amount, the resource of communication link/with the relevant resource utilization of content, content Access delay, corresponding predetermined threshold value include but not limited to：Predetermined threshold value corresponding with the bandwidth of communication link is accessed with content The corresponding predetermined threshold value of maximum hop count, with obtain the corresponding predetermined threshold value of the value at cost of content.The bandwidth of communication link limits Including but not limited to：Link bandwidth threshold value/load/and content of this micro-base station to the forward pass link between macro base station are relevant negative Carry link bandwidth threshold value/load/and the relevant load shape of content between state threshold information, this micro-base station and other micro-base stations State threshold information, specific content include but not limited to special caused by independently removing content due to user mobility or user terminal Content, the content with specific popularity for determining copy of content variation are based on optimization aim and optimization according to above-mentioned selection result Restrictive condition generates and exports control parameter is sliced Optimal Control Strategy unit to static content network.
S215：Static content network is sliced Optimal Control Strategy unit and the content network is sliced optimization generation problem conversion It is put for specific content, the cache contents based on certain optimisation target and certain optimisation restrictive condition selected in system for one Optimization problem is set, the optimization based on above-mentioned optimization problem is completed, and is exported to control strategy and distributes submodule output towards spy Determine content, content caching Optimal Control Strategy result information based on content caching resource and the communication resource.
Result information therein be included as selected specific content distribution using content as the communication resource of granularity and Content caching resource information.
S216：Control strategy exports and distribution submodule receives Optimal Control Strategy as a result, being based on the Optimal Control Strategy Result information generates content network slice information and content network the slice generation control information corresponding to each content, and will be right The content network slice that micro-base station controller should be sent in the content network slice information of each content is searched and record submodule Block, meanwhile, the corresponding content network slice of the optimal control result is also generated into control information and is sent to and optimal control result Relevant micro-base station controller and/or wireless access point controller and/or user terminal controller.
S217：The content network slice of micro-base station controller is searched and record sub module updates the content for specific content Network slice information, the content with the relevant micro-base station controller of this optimal control result and/or wireless access point controller Network slice generates control strategy receiving submodule and/or the content network slice generation control strategy of user terminal controller connects It receives submodule and control information progress resource allocation is generated according to the content network slice received, generate corresponding to each content Content network is sliced.
During specific execute, after content network slice creation process is completed, relevant micro-base station controller and/ Or wireless access point controller and/or user terminal controller send content caching optimization and reset and successfully disappear to macro base station controller Breath；
S218：The control strategy output of this micro-base station and distribution submodule receive all related to this optimal control result Micro-base station and/or the content caching of wireless access point and/or user terminal optimization resetting success message.
This static content network slice optimization generating process terminates.
It should be noted that being given above static content network slice optimization of the micro-base station controller based on specific content The flow of generation method can be used for static content network slice of the wireless access point controller based on specific content and generate, Details are not described herein.
In the embodiment of the present invention, the optimization generation method of dynamic content network slice refers to that system takes for the content of user The content network slice optimization generation method based on single content that business request is completed.The optimization of dynamic content network slice generates Method can be completed by macro base station controller or specific micro-base station controller, provide the content clothes based on user individually below Business request, the dynamic content network for single content completed in macro base station controller and micro-base station controller are sliced optimization Generation method.
Referring to the dynamic content network slice optimization generation side that Figure 22, Figure 22 are macro base station controller in the embodiment of the present invention The flow diagram of method, includes the following steps：
S221：Macro base station controller receives the user content service request from micro-base station controller, and executes S222.
S222：Content network slice management module in macro base station controller finds the content network slice information, holds Row S223.
S223：The node of affiliated node in information collection and analysis submodule acquisition system in macro base station controller The status information of the content caching of networking status information and content caching network between number, node analyzes simultaneously output system Network parameter and content parameters generate submodule to control parameter, and execute S224.
S224：Control parameter generates network parameter and interior of the submodule according to status information capture and analysis submodule output Hold parameter, based on the content network slice information found, particular characteristic index is selected to be sliced as this dynamic content network When optimizing the optimization aim of generating process, selected section status information and/or preset threshold value as content network slice generation Optimization restrictive condition, select the content of the request content as an optimization.
Wherein, optimization aim includes but not limited to the content in the content service request hit rate of user class, communication link Resource/with the relevant resource utilization of content, content access be delayed, optimization restrictive condition include but not limited to communication link Bandwidth limitation/limited with the relevant bandwidth of content, the cost of the maximum hop count of content access, acquisition content limit；Wherein, bandwidth Restrictive condition includes but not limited to link bandwidth limitation between macro base station and micro-base station/load bandwidth limitation/related with content Load bandwidth limitation, the link bandwidth limitation between micro-base station and micro-base station/load bandwidth limitation/with the relevant load of content Link bandwidth limitation/load bandwidth limitation/and the relevant load-strap of content between bandwidth limitation, micro-base station and user are extended the deadline Link bandwidth limitation/link load bandwidth limitation/and the relevant load bandwidth of content between system, user limit；According to above-mentioned Selection result is generated based on optimization aim and optimization restrictive condition and exports control parameter to the slice optimization control of dynamic content network Policy unit processed, and execute S225.
S225：Dynamic content network is sliced control strategy unit and content network slice optimization generation problem is converted into one Optimization problem is placed for requested content, based on the cache contents of certain optimisation target and certain optimisation restrictive condition, it is complete At the optimization based on above-mentioned optimization problem.
Dynamic content network be sliced control strategy unit to control strategy export and distribute submodule output for the content, For Optimal Control Strategy based on content caching resource and the communication resource as a result, i.e. using the content as granularity, system is the content The communication resource and content caching resource of distribution；Meanwhile macro base station controller updates its content network slice and searches and record son It is directed to the content network slice information of the content in module, and executes S226.
S226：Control strategy exports and distribution submodule receives content caching Optimal Control Strategy as a result, generating content net Network slice information and content network slice generate control information, and content network, which is sliced generation control information, to be sent to and this suboptimum Change the relevant micro-base station controller of control result and/or wireless access point controller and/or user terminal controller, by content net Network slice information is sent to the user terminal controller for asking the content by the micro-base station controller being connected with user terminal, Execute S227.
S227：It is each with the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/ Or the content network slice of user terminal controller generates control strategy receiving module and is sliced life according to the content network received At control information, its content caching submodule is controlled respectively and carries out content caching resetting, controlling corresponding communication resource module is The content network slice distribution communication resource.
After content network slice generates, it is each with the relevant user terminal controller of this optimal control result to its institute Belong to the control strategy output of micro-base station controller and distribution submodule sends content caching optimization resetting success message, each micro- base Station control receives the content caching optimization resetting success message of this content network slice optimization generating process, to the message Information is summarized, and is sent the content caching optimization resetting success message after information merges to macro base station controller, is executed S228.
The control strategy of macro base station controller exports and distribution submodule is received from each and this optimal control result The optimization of the content caching of relevant micro-base station and/or wireless access point controller and/or user terminal controller, which is reset, successfully to disappear Breath.
S228：The dynamic content network slice optimization generating process of this macro base station controller terminates.
The flow of the dynamic content network slice optimization generating process of micro-base station controller, can wrap in the embodiment of the present invention Include following steps：
Step 1：Micro-base station controller SBS1 receives content service request from the user, is sliced and manages in its content network Module searches the content network slice information, if finding the content network slice information, thens follow the steps 3；If no The content network slice information for finding the content, thens follow the steps 2.
Step 2：Micro-base station controller SBS1 allows the SBS2 controllers of its neighbour to be sliced in management module in its content network Search the content network slice information, if SBS2 controllers find the content network slice information, SBS2 controllers to SBS1 micro-base station controllers feed back the content network slice information of the content, execute step 9；If SBS2 controllers are not searched To the content network slice information, then micro-base station SBS1 sends the content service request to macro base station, and executes step 16.
Step 3：Content network slice control strategy submodule in SBS1 controllers starts in the dynamic based on the content Content network slice optimization generating process, executes step 4.
Step 4：Information collection and analysis submodule are according between this micro-base station owning user terminal number of acquisition, node Networking status information and content caching network content caching status information, analyze and generate the network parameter of system and interior Hold parameter, the network parameter of generation and content parameters, which are input to control parameter, generates submodule, and executes step 5.
Step 5：Control parameter generate submodule according to status information capture and analysis submodule output network parameter with And content parameters select this dynamic content network slice optimization generating process based on the content network slice information found Particular characteristic index target as an optimization, selected section status information and/or preset threshold value are sliced as content network and give birth to At when optimization restrictive condition, wherein optimization aim includes but not limited to the content hits in the content service request of user class Rate, the resource utilization of communication link/be delayed with the access of the relevant resource utilization of content, content, limitation item when optimization Part includes but not limited to bandwidth limitation/and the relevant bandwidth limitation of content, the maximum hop count of content access, the acquisition of communication link The cost of content information；Wherein, the bandwidth limitation of communication link includes but not limited to the link bandwidth between micro-base station and user Link bandwidth limitation/link between limitation/link load bandwidth limitation/and the relevant load bandwidth limitation of content, user is negative It carries/is limited with the relevant link load of content, and generated based on optimization aim and optimization limitation and export control parameter to dynamic Content network is sliced in control strategy submodule, executes step 6.
Step 6：Dynamic content network is sliced control strategy unit and content network slice optimization generation problem is converted into one It is a to be directed to requested content, optimization problem is placed based on certain optimisation target and the cache contents of specific limitation, completes to be based on The optimization of above-mentioned optimization problem, and it is excellent based on content caching resource and the communication resource to strategy output and distribution submodule output Change control result, i.e., is granularity comprising the content, system is the communication resource and content caching resource of the content assignment；It executes Step 7.
Step 7：Control strategy exports and distribution submodule receives Optimal Control Strategy as a result, generating content network slice life At control information and content network slice information；Content network is sliced by strategy output and distribution submodule generates control information hair It gives and the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/or user terminal control The content network slice of device processed generates control strategy receiving submodule, and content network slice information is sent to the S1 of request content User terminal controller；Execute step 8.
Step 8：With the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/or The content network slice of user terminal controller generates control strategy receiving submodule and is sliced life according to the content network received At control information, control content cache sub-module carries out cache contents optimization resetting, and control communication resource module is the content net The network slice distribution communication resource；After the completion of resource allocation, with the relevant micro-base station controller of this optimal control result and/or nothing The content network of line access point controller and/or user terminal controller slice generates control strategy receiving submodule to triggering sheet The micro-base station controller of suboptimization process sends content caching optimization resetting success message, executes step 15.
Step 9：Content network slice SBS2 controller of the control strategy submodule based on its neighbour of SBS1 controllers is anti- The content network slice information of feedback starts the dynamic content network slice optimization generating process based on the content, and executes step 10。
Step 10：The user controlled belonging to information collection and analysis submodule acquisition micro-base station SBS1 in SBS1 controllers Terminal number is used with each content caching of the networking status information of the relevant each nodes of SBS1 and content caching network Status information is analyzed and is exported network parameter and content parameters and generate submodule to control parameter, executes step 11.
Step 11：The control parameter of SBS1 controllers generates submodule according to status information capture and analysis submodule output Network parameter and content parameters selected specific based on the content network slice information that its neighbours' micro-base station controller is found Performance indicator as this dynamic content network be sliced optimization generating process optimization aim, selected section status information and/or Preset threshold value is sliced optimization restrictive condition when generating as content network, wherein optimization aim includes but not limited to be based on The content is used in the content service request hit rate of user class, the resource utilization of communication link/and the relevant resource of content The access delay of rate, content, optimization restrictive condition include but not limited to bandwidth limitation/content relevant band tolerance of communication link The cost of system, the maximum hop count of content access, acquisition content information, wherein the bandwidth of communication link, which limits, includes but not limited to Link bandwidth limitation between micro-base station and user/link load bandwidth limitation/with the relevant link load bandwidth limitation of content, The relevant link load bandwidth limitation of link bandwidth limitation/link load bandwidth limitation/content between user terminal；Based on excellent Change target and optimization limitation generates and exports control parameter and is sliced control strategy unit to dynamic content network；Execute step 12.
Step 12：Dynamic content network is sliced control strategy unit, and the content network slice based on the requested content is excellent Metaplasia is problematic to be converted into one for requested content, is placed based on certain optimisation target and the cache contents of specific limitation Optimization problem completes the optimization based on above-mentioned optimization problem；It is provided to strategy output and distribution submodule output based on content caching The optimal control of source and the communication resource as a result, be granularity comprising the content, system be the content assignment the communication resource and Content caching resource；And execute step 13.
Step 13：Control strategy exports and distribution submodule receives Optimal Control Strategy as a result, being based on the optimal control knot Fruit generates content network slice and generates control information and content network slice information, and corresponding content network is sliced and generates control Information is sent to and the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/or user The content network slice of terminal control unit generates control strategy receiving submodule, and content network slice information is sent to user's end Side controller S1, and execute step 14.
Step 14：With the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/or The content network slice of user terminal controller generates control strategy receiving submodule and is sliced life according to the content network received At control information, control content cache sub-module carries out content caching resetting, and control communication resource module is that the content network is cut Piece distributes the communication resource；After the completion of resource allocation, and the relevant micro-base station controller of this optimal control result and/or wirelessly connect Enter base site controller and/or user terminal controller and sends content caching to the micro-base station controller SBS1 for triggering this optimization process Optimization resetting success message；And execute step 15.
Step 15：The control strategy of micro-base station controller exports and distribution submodule is received from each and this suboptimization control The content of the relevant micro-base station controller of result processed and/or wireless access point controller and/or user terminal controller feedback is slow Deposit optimization resetting success message.
Step 16：This dynamic content network slice optimization generating process terminates.
It should be noted that being given above the dynamic content network slice optimization generating process of micro-base station controller completion Flow, can be used for the optimization that wireless access point controller is sliced dynamic content network and generate.
In other embodiments, under present invention network scenarios shown in Fig. 2, when user equipment S1 sends out a content clothes When business request, system is by triggering for the optimization generating process of the dynamic content network slice of the content service request.Content is believed After ceasing search process, the resource allocation process in the mobile radio access network based on this search result, packet will be completed The distribution of content caching resource and the communication resource is included, is finally generated for the content in current mobile radio access network Content network is sliced.
The system of being given below carries out content search based on the content service request that user sends, by triggering dynamic content net Network slice optimization generating process, generates the content network slice based on the content, completes answering to the content service request of user Answer service process.
Step 1：The user terminal controller of S1 generates and receives mould according to the operation of user's request content service in message Content service request message is generated in block；Message generates and receiving module extraction content information mark, and content information is identified It is sent to the content network slice management module of the user terminal controller of S1；The content net in user terminal controller in S1 Network slice management module searches the content network slice information, if finding the content network slice information, thens follow the steps 7-1；If not finding the content network slice information, which is sent to the neighboring user terminals of S1 Controller, and execute step 2.
Step 2：Content network slice management module in the neighboring user terminals controller of user terminal S1 searches content Network slice information executes step 7-2 if finding the content network slice information；If neighboring user terminals do not have The content network slice information is found, then returning to the content search based on the content to user terminal controller S1 unsuccessfully disappears Breath, and execute step 3.
Step 3：User terminal S1 selects the highest subscriber terminal equipment S2 of angle value in its neighboring user terminals, and content is taken Business request is sent to the user terminal controller of S2, it is asked to search the content information；The user terminal controller of S2 is by its neighbour It occupies user terminal controller and is sliced the content network slice information searched in management module corresponding to the content in its content network, If its neighboring user terminals controller finds the content network slice information, 7-3 is thened follow the steps；If do not found The content network slice information then searches failed message, the control of S1 user terminals to the user terminal controller returned content of S1 Device then sends content service request to coupled micro-base station controller SBS1, and executes step 4.
Step 4：The micro-base station controller for the micro-base station SBS1 being connected with S1 executes the dynamic content net of micro-base station controller Network slice optimization generating process (referred to as Dynamic-SBS1 processes).
Step 4-1：Judge the content network corresponding to the request content whether is found at the end of Dynamic-SBS1 processes Slice information, if it is not, then content service request is sent to the macro base station controller belonging to it by micro-base station controller SBS1 MBS1 is executed dynamic content network slice optimization generating process (the referred to as Dynamic-MBS1 of macro base station controller by MBS1 Process), S1 user terminals controller obtains the content according to the newer content network slice information received；Execute step 8； If so, S1 user terminals controller obtains the content according to the newer content network slice information received；Execute step 8.
Step 7-1：Content network slice management module update in S1 user terminal controllers is directed to the content of the content Network slice information, S1 obtain the content according to newer content network slice information；Execute step 8.
Step 7-2：Content network slice management module in S1 user terminal controllers selects one of neighbor user The content network slice information that terminal control unit is found, and update based on the content network slice information content network of the S1 The content network slice information of the content is directed in slice lookup and record sub module, S1 is sliced according to updated content network Information obtains the content；Execute step 8.
Step 7-3：Content network slice management module in S2 user terminal controllers selects one of neighbor user The content network slice information that terminal control unit is found；Content network slice management module in S2 controllers updates the content The content network slice information is simultaneously sent to S1 by the information of network slice；Content network slice in S1 user terminal controllers Management module updates the information of content network slice；S1 user terminals controller is sliced according to updated content network to be believed Breath, obtains the content；Execute step 8.
Step 8：The service of this user terminal S1 request contents, system are completed content service request process and are terminated.
In an embodiment of the present invention, the synchronized update maintenance process of content network slice is mainly used to complete content network Update and the synchronous maintenance of slice and content network slice information.Individually below from different controller angles and content may occurring The synchronous different situations of network slice are set out, and the content network slice synchronized update maintenance process completed in system is provided.
Content network slice synchronized update in system is safeguarded with the controller difference for triggering this process, detailed process It has any different.According to the controller classification in system, this synchronized update maintenance process is divided into the content net of macro base station controller triggering The content network slice that network is sliced synchronized update maintenance process, micro-base station controller/wireless access point controller triggering is synchronous more New maintenance process and the content network of user terminal controller triggering are sliced synchronized update maintenance process.
What the content network slice synchronized update maintenance process of macro base station controller triggering was primarily referred to as being originated by macro base station Content network is sliced caused by static content network slice optimization generating process and dynamic content network slice optimization generating process Synchronized update maintenance process.
Wherein, static content network slice optimization generating process can be based on the particular characteristic index in system, for institute There are content or part that content is specified to complete content network slice optimization to generate, static content network slice optimization generating process is complete Cheng Hou starts static content network slice synchronized update maintenance process (the referred to as MBS-initiated- of macro base station triggering CSYN-S processes)；Dynamic content network slice is then that the content service request based on user is initiated, based on this request content Content network slice optimization generating process, when user sends out content service request, if the search based on content network slice Process can not obtain requested content information in micro-base station grade, then the content service request is forwarded to macro base station controller, Macro base station controller startup dynamic content network, which is sliced, optimizes generating process, and after the process, macro base station controller device starts The dynamic content network slice synchronized update maintenance process (referred to as MBS-initiated-CSYN-D processes) of macro base station triggering.
MBS-initiated-CSYN-S processes therein are as follows：
The particular characteristic index of macro base station monitoring control devices system, particular characteristic index include but not limited to the control of this macro base station The specific content copy amount change information of device institute processed control area, the content hit rate of specific micro-base station controller and macro base The connected link state of station control/relevant negative with the relevant link-state information of content, the load/of particular link and content Carry status information；When the particular characteristic index of system does not meet preset threshold value, the static content network for starting macro base station is cut Piece optimize generating process, the optimization generating process can be for all the elements content network slice optimization generating process (i.e. Static-MBS-All Contents processes), can also be the content network slice optimization generating process for partial content (i.e. Static-MBS-specific Contents processes)；If it is not, then continuing the particular characteristic index of monitoring system.
When above-mentioned Static-MBS-All Contents processes or Static-MBS-specific Contents mistakes After journey, the macro base station controller of system is generated to be sliced based on the content network of all the elements or partial content, and Corresponding content network slice generates control information and content network slice information.Macro base station controller control strategy output and Content network slice information is sent to the lookup of its content network slice and record sub module, content network slice by distribution submodule It searches and record sub module updates corresponding content network slice information, after the completion of update, content network slice is searched and record Submodule is sliced synchronous submodule to content network and sends content network slice synchronized update maintenance request information, which includes But all the elements network for being not limited to the generation of this suboptimization generating process is sliced the ID number of corresponding content, corresponding content network Slice information, the ID number etc. of this suboptimization generating process, the synchronous submodule of content network slice is sliced to content network generates system Manager of uniting sends content network and is sliced synchronized update maintenance request message, includes but not limited to macro base station control in the message All the elements network slice that the ID number of device, the ID number of this suboptimization generating process, this suboptimization generating process generate is corresponding The ID number of content and its corresponding content network slice information.Content network slice generates system administration manager and receives the content network It is sliced synchronized update maintenance request message, the micro-base station controller and/or wireless access point controller transmission into system are based on The content network of this suboptimization generating process is sliced synchronized update maintenance request message, micro-base station controller in system and/or Wireless access point controller receives content network slice synchronized update maintenance request message, is sliced to the content network belonging to it It searches and is updated with corresponding content network slice information in record sub module, meanwhile, also the content network is sliced and is synchronized Updating maintenance request message is sent to each user terminal controller belonging to it, and each user terminal controller is disappeared based on this Breath, to the content network slice belonging to it search and record sub module in corresponding content network slice information be updated, when After the content network slice synchronized update of all controllers, MBS-initiated-CSYN-S processes terminate.
MBS-initiated-CSYN-D procedure declarations therein are as follows：
When macro base station controller receives the content service request from some micro-base station controller, start the dynamic of macro base station Content network slice optimization generating process, i.e. Dynamic-MBS processes.After above-mentioned Dynamic-MBS processes, the macro base of system Station control generates the slice of the content network based on the request content and corresponding content network slice generates control information With content network slice information.The control strategy of macro base station controller exports and distributes submodule by the content network slice information It is sent to the lookup of its content network slice and record sub module, content network slice is searched and record sub module update is corresponding interior Content network slice information, after the completion of update, content network slice is searched with record sub module to the synchronous submodule of content network slice Block sends the content network based on the content and is sliced synchronized update maintenance request information, which includes but not limited to this dynamic Optimization generating process is related to the ID of the ID number of the content of optimization, corresponding content network slice information, this suboptimization generating process Number etc., the synchronous submodule of content network slice is synchronous more to content network slice generation system administration manager transmission content network slice New maintenance request message includes but not limited to the ID of the ID number of the macro base station controller, this suboptimization generating process in the message Number, the ID number of content that is related to of this suboptimization generating process and corresponding content network slice information.Content network slice life Receive the content network at system administration manager and be sliced synchronized update maintenance request message, micro-base station controller into system and/ Or wireless access point controller sends the content network based on this dynamic improving process and is sliced synchronized update maintenance request message, All micro-base station controllers and/or wireless access point controller in system receive content network slice synchronized update maintenance and ask Seek message, to the content network slice belonging to it search and record sub module in the corresponding content network slice information carry out more Newly, meanwhile, content network slice synchronized update maintenance request message is also sent to each user terminal belonging to it and is controlled Device, each user terminal controller are based on the message, and correspondence in lookup and record sub module is sliced to the content network belonging to it The content network slice information be updated, after the content networks of all controllers slice synchronized update, MBS- Initiated-CSYN-D processes terminate.
The content network of micro-base station controller triggering in the embodiment of the present invention is sliced synchronized update maintenance process and is mainly Refer to the static content network slice optimization generating process originated by micro-base station and dynamic content network slice optimization generating process is drawn The content network risen is sliced synchronized update maintenance process.Wherein, static content network slice optimization generating process can be based on micro- The particular characteristic index of the affiliated control area in base station is specified content to complete content network slice optimization and is generated for part, static After the completion of content network slice optimization generating process, the static content network slice synchronized update for starting micro-base station triggering was safeguarded Journey (referred to as SBS-initiated-CSYN-S processes)；Dynamic content network slice is then the content service request based on user Content network slice optimization generating process initiate, based on this request content, when user sends out content to micro-base station controller When service request, micro-base station controller starts the dynamic content network slice optimization generating process based on the content, optimization life After process, the dynamic content network that micro-base station controller device starts micro-base station triggering is sliced synchronized update maintenance process (referred to as SBS-initiated-CSYN-D processes).
SBS-initiated-CSYN-S procedure declarations therein are as follows：
The particular characteristic index of its affiliated control area of micro-base station monitoring control devices, particular characteristic index include but not limited to The copy of content quantity change information of the affiliated control area of micro-base station controller, the content hit rate of this micro-base station controller, with The connected link state of this micro-base station controller/with the relevant link-state information of content, the load state information of particular link/ With the relevant load state information of content；When the particular characteristic index of affiliated control area does not meet preset threshold value, start Static content network slice optimization generating process (i.e. Static-SBS-Specific of the micro-base station for partial content Contents processes)；If it is not, then continuing the particular characteristic index of its affiliated control area of micro-base station monitoring control devices.
After Static-SBS-Specific Contents processes, which generates based on part The content network of content is sliced, and generates control information and content network slice corresponding to the content network slice of these contents Information.The control strategy of micro-base station controller exports and content network slice information is sent to its content network by distribution submodule Slice is searched and record sub module, and content network slice is searched and record sub module updates corresponding content network slice information, After the completion of update, content network slice is searched and record sub module is cut to content network slice synchronous submodule transmission content network Piece synchronized update maintenance request information, the information include but not limited to the ID for the specified content that this suboptimization generating process generates Number, corresponding content network slice information, the ID number etc. of this suboptimization generating process, the synchronous submodule of content network slice is inside Content network slice, which generates system administration manager and sends content network, is sliced synchronized update maintenance request message, which includes but not Be limited to that the ID number of the micro-base station controller, the ID number of this suboptimization generating process, this suboptimization generating process generate it is specified in The ID number of appearance and its corresponding content network slice information.Content network slice generation system administration manager receives the content network and cuts Piece synchronized update maintenance request message, the macro base station controller, micro-base station controller into system and/or wireless access point control Device sends the content network based on this optimization process and is sliced synchronized update maintenance request message, the macro base station control in system Device, micro-base station controller and/or wireless access point controller receive content network slice synchronized update maintenance request message, right Content network slice belonging to it is searched to be updated with corresponding content network slice information in record sub module, meanwhile, Content network slice synchronized update maintenance request message is sent to each user terminal controller of its affiliated control area, Each user terminal controller is based on the message, searches the content network slice belonging to it and the content network of record sub module Slice information is updated, when all micro-base station controllers and/or wireless access point controller, user terminal controller are directed to this After the content network slice synchronized update of suboptimization generating process, SBS-initiated-CSYN-S processes terminate.
SBS-initiated-CSYN-D procedure declarations therein are as follows：
When micro-base station controller receives the content service request from some user terminal controller, start the dynamic of micro-base station State content network slice optimization generating process (i.e. Dynamic-SBS processes).After above-mentioned Dynamic-SBS processes, micro- base Station control generates the slice of the content network based on the request content and corresponding content network slice generates control information With content network slice information.The control strategy of micro-base station controller exports and distributes submodule by the content network slice information It is sent to the lookup of its content network slice and record sub module, content network slice is searched and record sub module update is corresponding interior Content network slice information, after the completion of update, content network slice is searched with record sub module to the synchronous submodule of content network slice Block sends the content network based on the content and is sliced synchronized update maintenance request information, which includes but not limited to this dynamic Optimization generating process is related to the ID of the ID number of the content of optimization, corresponding content network slice information, this suboptimization generating process Number etc., the synchronous submodule of content network slice is synchronous more to content network slice generation system administration manager transmission content network slice New maintenance request message includes but not limited to the ID of the ID number of the micro-base station controller, this suboptimization generating process in the message Number, the ID number of content that is related to of this suboptimization generating process and corresponding content network slice information.
Content network slice generates system administration manager and receives content network slice synchronized update maintenance request message, to being Macro base station controller, micro-base station controller and/or wireless access point controller in system, which are sent, is based on this dynamic improving process Content network be sliced synchronized update maintenance request message, macro base station controller, micro-base station controller in system and/or wireless Access point controller receives content network slice synchronized update maintenance request message, and lookup is sliced to the content network belonging to it The corresponding content network slice information is updated in record sub module, meanwhile, it is also that content network slice is synchronous more New maintenance request message is sent to each user terminal controller belonging to it, and each user terminal controller is based on the message, To the content network slice belonging to it search and record sub module in the corresponding content network slice information be updated, work as institute After the synchronized update for having controller, SBS-initiated-CSYN-D processes terminate.
It should be noted that being given above the stream of the content network slice synchronized update maintenance process of micro-base station controller Journey, the content network slice synchronized update that can be used for wireless access point controller safeguard that details are not described herein.
The content network of user terminal controller triggering in the embodiment of the present invention is sliced synchronized update maintenance process and refers to The content network slice synchronized update dimension of caused system when the copy of content of the specific content stored in user terminal is reduced Shield process.This process includes content network slice synchronized update maintenance process (the referred to as active of active user terminal starting Formula UE-initiated-CSYN processes) and the user terminal-initiated content network slice synchronized update maintenance process (letter of passive type Referred to as passive U E-initiated-CSYN processes).
Wherein, caused by active UE-initiated-CSYN processes refer to after user's active erasure specific content copy Content network is sliced synchronized update maintenance process；Passive U E-initiated-CSYN processes refer to user terminal due to movement Go out former affiliated area, cause the copy of content quantity belonging to one's respective area change caused by content network slice synchronized update Maintenance process.
1, active UE-initiated-CSYN processes
The content caching that the content caching update submodule of user terminal controller is provided according to user terminal controller is more New strategy, the content caching update mechanism based on autonomous control, is updated the specific content in its content caching, and content is more After the completion of new, content caching updates submodule transmission copy of content erasure information and is sliced synchronous submodule, content to content network Copy erasure information includes but not limited to the ID number for being wiped free of content, be wiped free of content where customer controller ID and original The ID number of the content caching at place.
The synchronous submodule of content network slice sends content network to user terminal micro-base station controller affiliated at present and cuts Piece synchronizes erasing message, include but not limited to the ID number of this user terminal controller in the message, be wiped free of content ID number and The ID number of content caching where its original.
Micro-base station controller belonging to user terminal controller receives the synchronous erasing of content network slice from the user and disappears Breath, row information of going forward side by side summarize, and generate the synchronous erasing message of content network slice after information merges；Micro-base station controller is by content The synchronous erasing message of network slice is sent to content network slice and generates system administration manager；Content network slice generates system administration Macro base station controller, all micro-base station controller and/or wireless access point controller of the device into system, which are sent, is based on this suboptimum The content network of change process is sliced synchronized update maintenance request message；It all micro-base station controllers in system and/or wirelessly connects Enter base site controller and receive content network slice synchronized update maintenance request message, the content network slice belonging to it is searched and Corresponding content network slice information is updated in record sub module；Meanwhile also by content network slice synchronized update dimension Shield request message is sent to each user terminal controller belonging to it；Each user terminal controller is based on the message, to it Affiliated content network slice is searched to be updated with corresponding content network slice information in record sub module；When all controls After the synchronized update of device, active UE-initiated-CSYN processes terminate.
2, passive U E-initiated-CSYN processes
The mobility state information of the information collection and analysis submodule monitoring user terminal of micro-base station controller, judges to use Whether family will move out this micro-base station controller affiliated area, if it is, this micro-base station controller is collected in this user terminal The content network slice information for being related to this system of upper storage generates the copy of content corresponding to these content network slice informations Erasure information；If it is not, then continuing the mobility state information of monitoring user terminal.
When user terminal moves out this micro-base station controller affiliated area, user terminal controller passes through content update Module, control content cache sub-module are sliced the content network for being related to this system stored on this user terminal, i.e. content pair This progress active removal.Meanwhile micro-base station controller is opened for the synchronous erasing message of content network slice of above-mentioned user terminal Dynamic SBS-initiated-CSYN-S processes.
In the embodiment of the present invention, as an example, content network slice generates the content network of system administration manager triggering Slice synchronized update maintenance process (NSSM-initiated-CSYN processes) may refer to Figure 23, and Figure 23 is the embodiment of the present invention Middle content network slice generates the content network slice information synchronized update maintenance process schematic diagram of system administration manager triggering.
When content network is sliced generation system administration manager update is synchronized for the specific content network slice in system When, the content network slice synchronized update maintenance process that content network slice generates system administration manager triggering, this stream can be started The step of journey, is as follows：
S231：Content network slice generates system administration manager and starts what the specific content network slice in the system of being directed to carried out Synchronized update maintenance process, the content network generated corresponding to the content are sliced synchronized update maintenance request message.
S232：Content network slice generate system administration manager send content network slice synchronized update maintenance request message to Specific macro base station controller, micro-base station controller, wireless access point controller, macro base station controller, micro-base station controller, nothing Line access point controller receives content network slice synchronized update maintenance request message.
S233：Micro-base station controller, wireless access point controller send content network slice together to user terminal controller Walk updating maintenance request message.
S234：Each controller receive content network slice synchronized update maintenance request message, for the specific content into The synchronized update of row content network slice, each macro base station controller, micro-base station controller, wireless access point controller and user are whole Side controller is completed to be sliced synchronized update for the content network of the content.
S235：The content network slice for specific content that content network slice generates system administration manager triggering is synchronous more New maintenance process terminates.
During the embodiment of the present invention executes, in addition to due in static content network slice optimization generating process, dynamic Content network slice optimization generates except the content network slice information variation brought, due to User support mobility, between user Connection can because user mobility and change, when some user remove some micro-base station controller control region When, it may occur that certain copy of content failure that content caching stores in the user terminal, so as to cause corresponding in the content Thus the situation that content network slice information changes can also bring macro base station controller, micro-base station controller, wireless access point control The change of corresponding content network slice information in content network slice logging modle in device and user terminal controller；When When same partial content caches while supporting controlled content update and autonomous content update, based on autonomous control in content caching Content caching update can cause certain copy of content in system to be removed, and also result in content network slice and search and record son The situation that certain content network slice informations change in module, therefore, system need to complete the synchronization of content network slice Updating maintenance process.
The embodiment of the present invention is given at the content network slice synchronized update that system is completed under above-mentioned different situations and safeguards stream Journey.
As an example, content network slice synchronized update maintenance process caused by user terminal movement can be referred to as UM-CSYN processes are that content network slice caused by being moved due to user terminal in the embodiment of the present invention is same referring to Figure 24, Figure 24 Updating maintenance flow diagram is walked, is included the following steps：
S241：The status information capture and analysis submodule of user terminal controller detect and analyze the physics of user terminal Layer link-state information.
S242：Judge whether physical layer link status information changes, if it is not, then executing S241, is, executes S243.
S243：It is affiliated at present to judge whether the link-state change information can cause user terminal to leave this user terminal Otherwise this physical link state change information is reported to the micro-base station belonging to it by micro-base station controller if so, executing S244 Controller, and execute S241.
S244：The status information capture of user terminal controller and analysis submodule change physical link information hair The content information for giving user terminal controller is searched and record sub module.
Content information is searched and record sub module counts the content network slice of this user terminal storage, and the information is sent out Content update submodule is given, when content update submodule receives status information capture and analyzes the user terminal of submodule transmission After leaving this micro-base station controller information, the content caching submodule removal that content update submodule controls user terminal is corresponding Copy of content information；After the completion of copy of content removes, copy of content removal successful information is sent to user terminal controller Content service request generates and receiving module, and content service request generates and receiving module sends and is directed to above-mentioned removed content pair This content network is sliced synchronous erasing message and gives this user terminal current affiliated micro-base station controller.
S245：Micro-base station belonging to user terminal is current judges whether the synchronous erasing message of this content network slice belongs to this Micro-base station affiliated area needs to safeguard newer content network slice information, if so, executing S247, otherwise, executes S246.
S246：The content network is sliced the macro base station that synchronous erasing message is sent to belonging to it and controlled by micro-base station controller Device executes S248；
S247：Execute micro-base station controller triggering caused by independently being wiped based on user terminal in micro-base station controller Static content network is sliced synchronized update maintenance process (SBS-initiated-CSYN-S processes), and triggers and execute S248.
S248：Content network slice synchronized update maintenance process caused by movement based on this user terminal terminates.
In the embodiment of the present invention, content network is sliced synchronized update caused by the autonomous content caching update of user terminal Maintenance process includes the following steps：
Step 1：The content caching shape of the information collection of user terminal controller and analysis module monitoring subscriber terminal equipment State information.
Step 2：Judge whether content caching has occurred the autonomous erasing to specific content copy according to status information, if It is then to enter step 3；If it is not, then entering step 1.
Step 3：User terminal controller updates the content of its own based on the autonomous erasure information to specific content copy Network slice information, and the micro-base station controller belonging to it sends the synchronous erasing message of content network slice, is wrapped in this message Include but be not limited to the ID of content of erasing, the content caching ID where the copy of content of erasing and its control of affiliated user terminal Device ID.
Step 4：Micro-base station controller receives the synchronous erasing message of content network slice for carrying out user terminal controller, base It is sliced synchronous erasing message in the content network, executes the synchronized update of the static content network slice of micro-base station controller triggering Maintenance process (SBS-initiated-CSYN-S processes).
Step 5：User terminal content network slice synchronized update caused by autonomous content caching update mechanism is safeguarded Process terminates.
It, can be by macro base station controller due to being based on static content network slice optimization generating process in the embodiment of the present invention Or micro-base station controller is initiated, therefore, thus caused content network slice synchronized update maintenance process can be optimized by triggering The macro base station controller or micro-base station controller of generating process are initiated, that is, execute MBS-initiated-CSYN-S processes or SBS-initiated-CSYN-S processes.
In the embodiment of the present invention, due to dynamic content network is sliced optimization generating process can be by micro-base station controller or macro Base station controller is initiated, and therefore, thus caused content network slice synchronized update maintenance process can be generated by triggering optimization The macro base station controller or micro-base station controller of process are initiated, that is, execute MBS-initiated-CSYN-D processes or SBS- Initiated-CSYN-D processes.
In the embodiment of the present invention, system administration manager is generated because of the maintenance managements reason such as more new content when content network is sliced, When changed content network is sliced, NSSM-initiated-CSYN processes are executed.
In the embodiment of the present invention, the initialization of system and configuration process include the initialization procedure of system, content caching control Molding formula configuration process and content network slice optimization generate control model configuration process.
The Radio Access Network content network slice of content oriented business generates the initialization that system administration manager completes system Process.The initialization procedure of system includes mainly the initial parameter setting of system, Performance Counter Threshold is arranged, the node of system is opened up The content network slice for flutterring configuration, the content caching control model configuration of system and system generates control model configuration.
Wherein, initiation parameter includes but not limited to greatest content number/current content number, the system that system is supported The macro base station number of the maximum user terminal number of support, maximum macro base station number/current, maximum micro-base station number/current The wireless access point number etc. of micro-base station number, maximum wireless access point number/current, and it is directed to each content, user class In greatest content copy number/minimum contents copy number of storage, greatest content copy number/minimum of micro-base station grade storage Hold copy number, greatest content copy number/minimum contents copy number etc. of macro base station grade storage；Performance Counter Threshold is arranged Be be sliced by content network generate in the complete paired systems of system administration manager based on centered on network performance indicator and with user be The Performance Counter Threshold at center is arranged, and network-centric performance indicator includes but not limited to the bandwidth most ambassador of particular link With value/and the relevant bandwidth maximum use value of content, load bandwidth threshold value/and the relevant load bandwidth threshold value of content, load Weigh parameter threshold/and the relevant load balancing parameter threshold of content etc., and the performance indicator of customer-centric includes but not limited to The average content hit rate of user class, average content hit rate of micro-base station grade etc.；The node topology of system configures mainly by interior Content network slice generates system administration manager according to the networking state initialization process of each node in system, macro base in complete paired systems Networking topological diagram, macro base station between standing and the networking topological diagram between micro-base station/wireless access point, micro-base station/wireless access Networking topological diagram, micro-base station/networking between wireless access point and user terminal between point and micro-base station/wireless access point are opened up Flutter the networking topology map generalization between figure, user terminal and user terminal；The content caching control model configuration of system is completed In system content caching control configuration, include mainly to controlled content buffer memory capacity, autonomous control content caching capacity and its The configuration of content caching update mechanism；The content network slice optimization of system generates control model configuration and is given birth to by content network slice It is completed at system administration manager, including static content network slice optimization generation pattern, the slice optimization of dynamic content network generate mould The control model that formula and static and dynamic content network slice optimization generation pattern are supported.
In the embodiment of the present invention, system administration manager is generated by the Radio Access Network content network slice of content oriented business Control model configuration is carried out to the content caching in whole system.
The control model of content caching configuration mainly including controlled content cache management mechanism control model selection and The control model of the content caching administrative mechanism of autonomous control selects.
It, can be in the way of centerized fusion, in the way of distributed AC servo system and hybrid control when control model configures The mode of system carries out control configuration.
A kind of centralized content cache control Mode configuration process, distributed content cache control model are provided individually below The flow of configuration process and hybrid content caching control model configuration process.It is the embodiment of the present invention referring to Figure 25, Figure 25 A kind of flow diagram of middle centralized content cache control Mode configuration process.
The centralized content cache control Mode configuration process of Figure 25 completes content network slice and generates system administration manager pair The micro-base station controller of system and the content caching belonging to user terminal controller are uniformly controlled pattern configurations, including micro-base station The controlled content buffer memory capacity of affiliated content caching unit, the content caching capacity of autonomous control and controlled content caching can With the content number of storage.The content caching update mechanism that the content caching of autonomous control is supported includes content insertion mechanism and interior Hold removal mechanism.
Referring to Figure 26, Figure 26 is a kind of flow of hybrid content caching control model configuration process in the embodiment of the present invention Schematic diagram.In the hybrid content caching control model configuration process that Figure 26 is provided, content network slice generates system administration manager According to the initiation parameter of system, the controlled content that micro-base station controller and the affiliated content caching of user terminal controller is arranged is slow Deposit capacity, autonomous control content caching capacity belonging to it is arranged in micro-base station controller and user terminal controller and its content is slow Deposit update mechanism.
Referring to Figure 27, Figure 27 is a kind of flow of distributed content cache control model configuration process in the embodiment of the present invention Schematic diagram.Figure 27 gives a kind of distributed content cache control model configuration process.By micro-base station controller and user terminal Controller is respectively to the controlled content buffer memory capacity of the content caching unit belonging to it, autonomous control content caching capacity and its interior Hold buffer update mechanism to be configured, configuration process is completed, and the content network slice that configuration result is sent to system generates system It unites manager, content network slice generates system administration manager and records configuration result, and system for content network slice generates control will be by According to the configuration capacity of above-mentioned controlled content caching, distribution generates the content caching resource of content network slice for system.
This process is to generate system administration manager pair by the mobile radio access network content network slice of content oriented business Whole system carries out the configuration of control model.The configuration of the control model of system includes mainly being controlled in mobile radio access network The configuration of the control planning of device, the static slicing pattern of the content network slice of content oriented business and Dynamic Slicing pattern etc..
Referring to Figure 28, Figure 28 is that the content network slice optimization generation control model of system in the embodiment of the present invention configured Journey schematic diagram.Figure 28 gives a kind of flow of the content network slice optimization generation control model configuration process of system.At this In flow, since system can support the slice optimization of static content network to generate control model and the slice optimization of dynamic content network Control model is generated, therefore, the content network slice optimization that system can be arranged generates control model mark, and one kind is simply set The mode of setting is that setting 01 generates control model for only support static content network slice optimization, and 10 be only support dynamic content network Slice optimization generates control model, and 11, both to support the slice optimization of static content network to generate control model, also support in dynamic Content network slice optimization generates control model.A kind of specific content network slice optimization generation of the selection of this during in system Control model identifies, and content network slice generates the above network slice optimization of the system administration manager based on selection and generates control Pattern identification completes system and controls relevant initialization procedure based on the content network slice under this control model.
As an example, a kind of specific implementation being sliced optimization generation method based on the above network is given below Example, i.e., a kind of weighting hop count to obtain content make optimization aim of the Least-cost as system, with user content as cost The threshold value that service request mean hit rate, the copy of content number needed in user class reach system needs limits item as an optimization Content network slice optimization algorithm (CCSOA, Content-oriented the Caching Optimization of part Algorithm) and the slice of the content network based on CCSOA algorithms optimizes generation method.
The flow of the optimization generating process of the content network slice based on CCSOA is introduced individually below, based on the quiet of CCSOA State content network slice optimization generation method and dynamic content network slice optimization generation method.
Under network scenarios shown in Fig. 2, when user equipment S1 sends out a content service request, system will be based on CCSOA, triggering is to the search of the content network slice information and content network slice optimization generating process, when search and content net After network slice creation process, user terminal obtains requested content information, meanwhile, system will be completed to be based on this content The synchronized update process of content network slice information in the mobile radio access network of network slice optimization generating process result.
Specifically, the above process includes the following steps：
Step 1：Message in user terminal controller in user equipment S1 generates and receiving module is asked according to user The operation of content generates content service request message, and this content service request message is sent to the content of this user equipment Network is sliced management module；The content network slice management module of S1 is searched in the content network slice of user equipment and record is sub The content network slice information is searched in module, if finding the content network slice information, is looked into from content network slice It looks for and record sub module is generated to message and receiving module sends content search successful information, and terminate this content search, into Enter step 7-1-1；If not finding the content network slice information, step 2 is carried out.
Step 2：Content service request message is sent to its neighboring user terminals by S1 by communication module, and neighbor user is whole The content network slice management module at end receives the content service request message by its communication module, is cut in its content network Piece search and record sub module in carry out the lookup of content network slice information, meanwhile, send content search response message to S1, If multiple neighboring user terminals all find the content network slice information, S1 selects one of subscriber terminal equipment, It allows communication module of the equipment by its own, which is sent to S1, content information according to original route Search terminates, and enters step 7-1-2；If the neighboring user terminals of S1 equipment do not find content network slice letter Breath then sends content search failed message to S1, meanwhile, S1 enters step 3.
Step 3：S1 based at present with oneself have the group net state between the neighbor user equipment of communication association, select its neighbour It occupies angle value in subscriber terminal equipment highest equipment S2, S1 and sends content service request message to S2, the content network of S2 is sliced Content service request message is sent to the neighboring user terminals for having communication association with it by management module by communication module；S2 Neighboring user terminals according to the content service request message received, in its respective content network slice management module Corresponding content network slice information is searched in the lookup of content network slice and record sub module, and content search response message is sent out S2 is given, if the neighboring user terminals of S2 find the content network slice information, S2 selects one of user whole End, allows the user terminal that content network slice information is sent to S2 according to original route by its communication module, and then S2 will be interior Content network slice information is sent to S1, this content search terminates, and enters step 7-1-2；If the neighboring user terminals of S2 Content network slice information is not found, then the neighboring user terminals of S2 search failed message to S2 feedback contents, when S2's When all neighboring user terminals do not find the content network slice information, S2 is fed back to S1 can not search containing S2 in user class To the content search failed message of the mark of the content, then S1 enters step 4.
Step 4：User terminal S1 receives can not being found in the mark of the content in user class containing S2 for S2 transmissions Hold and search failed message, shows that this content service request is unable to get satisfaction in active user's grade of system, then user terminal S1 Content service request message is sent to the micro-base station controller SBS1 being attached thereto by communication module.The content service of SBS1 Request receiving module receives the content service request message by its communication module, and management module is sliced in its content network Corresponding content network slice information is searched in the lookup of content network slice and record sub module, if finding the content network Slice information, this content search terminate, and enter step 7-2；If SBS1 does not find the content network slice information, Carry out step 5.
Step 5：Content service request message is sent to the neighbours SBS of SBS1, these SBS by the micro-base station controller of SBS1 Corresponding content network is searched in the content network slice lookup of its content network slice management module and record sub module to cut Piece information, meanwhile, it sends lookup response message and gives SBS1 controllers, if multiple SBS find the content network slice information, SBS1 then selects one of SBS, allows it that content network slice information is sent to SBS1, content search knot by communication module Beam enters step 7-2；If the neighbours SBS of SBS1 does not find the content network slice information, these SBS to The controller of SBS1 sends content search failed message；Enter step 6.
Step 6：The controller of SBS1 receives the content search failed message of each SBS feedbacks, shows that the content service is asked Ask the current micro-base station grade in system to be unable to get satisfaction, then the content network slice management module of SBS1 is by communication module, The content service request of S1 is sent to coupled macro base station, the content network in macro base station controller is sliced management module The lookup of its content network slice and record sub module are searched, obtains corresponding content network slice information, this content search knot Beam；Enter step 7-3.
Step 7-1-1：The content network slice of user terminal controller S1 is searched and record sub module passes through communication module Obtained content network slice information is sent to content obtaining module, content obtaining module is sliced according to the content network to be believed Breath obtains the content information from the content buffering submodule that content network is sliced in management module；After obtaining content information, The synchronous submodule of content network slice that content obtaining module is sliced to content network in management module sends content synchronization information, Synchronous submodule is sliced from content network and is sliced content network of the generation system administration manager transmission based on the content to content network It is sliced synchronized update maintenance request message, content network slice generates system administration manager and starts NSSM-initiated-CSYN mistakes Journey completes the content network based on the content and is sliced renewal process；Enter step 8.
Step 7-1-2：The content network slice of user terminal controller is searched and record sub module is received by communication module The content network slice information sent to neighboring user terminals, content obtaining module is sent to by the content network slice information, Storage updates the content network slice information based on the content in the lookup of content network slice and record sub module；Meanwhile The content obtaining module of S1 user terminal controllers obtains the content information according to the content network slice information；Obtain content After information, the synchronous submodule of content network slice that content obtaining module is sliced to content network in management module sends content Synchronizing information is sliced synchronous submodule from content network and is sliced generation system administration manager transmission based on the content to content network Content network is sliced synchronized update maintenance request message, and content network slice generates system administration manager and starts NSSM- Initiated-CSYN processes complete the content network based on the content and are sliced renewal process；Enter step 8.
Step 7-2：Micro-base station controller in SBS1 is according to the search result of the above network slice information, based on obtaining It takes the path of the content information and has the content caching module id information of the content information, start its dynamic content network and cut Piece Optimal Control Strategy unit is completed the content network slice optimization based on CCSOA and is generated, the output optimization life of micro-base station controller At content network slice information and content network slice generate information；It is controlled with the relevant micro-base station of this optimal control result Device and/or wireless access point controller and/or user terminal controller are based on content network slice and generate information to be the content Distribute corresponding cache resources and the communication resource；
The content obtaining module of user's S1 terminal control units is received by the communication module of terminal from micro-base station controller The content network slice information that sends of content network slice management module, and according to the content network slice information, obtain it Ask corresponding content information；After obtaining end of text, the content network in micro-base station controller is sliced the interior of management module The synchronous submodule of content network slice is sliced to content network by communication module and generates system administration manager transmission based on the content Content network is sliced synchronized update maintenance request message, and content network slice generates system administration manager and starts NSSM- Initiated-CSYN processes complete the content network based on the content and are sliced synchronized update process；Enter step 8.
Step 7-3：Macro base station controller is according to the search result of the above information, the road based on the acquisition content information Diameter and the content caching module id information for having the content information start its dynamic content network slice Optimal Control Strategy list Member is completed for the content service request, the slice optimization generating process of the content network based on CCSOA, the life of macro base station controller At and export for the content content network slice information and content network slice generate information；With this optimal control result Relevant micro-base station controller and/or wireless access point controller and/or user terminal controller are sliced based on the content network It is the corresponding cache resources of the content assignment and the communication resource, the content network slice management mould of macro base station controller to generate information Content network slice information is sent by its communication module or the micro-base station by being connected with the user is sent to user's end by block Hold S1；The content network slice management module of user's S1 terminal control units receives the content network slice information, sends it to Content obtaining module, content obtaining module obtain content information according to the content network slice information；Obtain end of text it Afterwards, the synchronous submodule of content network slice of the content network slice management module of macro base station controller is by communication module, to Content network slice generates the synchronized update maintenance request message that system administration manager sends the content network slice based on the content, Content network slice generates system administration manager and starts NSSM-initiated-CSYN processes, completes the content net based on the content Network is sliced renewal process；Enter step 8.
Step 8：This believes for the content network slice of content service request, system based on CCSOA of user equipment S1 Breath search and the renewal process of content network slice optimization generating process and its content network slice information terminate.
Static content network slice optimization generation method of the macro base station controller based on CCSOA is given below, referring to Figure 29, Figure 29 is the flow of static content network slice optimization generation method of the macro base station controller based on CCSOA in the embodiment of the present invention Schematic diagram includes the following steps：
S291：Macro base station controller information acquires and analyzes micro-base station number/wireless access in submodule acquisition system Point number, user terminal number, the group net state between node and and its content caching network in each content caching state Information generates submodule to control parameter and exports the network parameter of current network and the content parameters of content caching network.
Wherein, network parameter includes but not limited to that networking topological diagram between node, the number of degrees of each node, center are situated between Number；Content parameters include but not limited to the capacity of Zip parameters, the arrival rate of content service request, content number, content caching Deng.
S292：Control parameter generate the system status information that submodule exports according to status information capture and analysis module, Network parameter and content parameters select the weighting hop count for obtaining content to minimize and are sliced optimization life as this static content network At the optimization aim of process, selection, which is not more than the copy of content number of specific threshold and meets specific content hit rate, it is expected to make It is sliced optimization restrictive condition when optimization generates for content network, optimization aim and optimization restrictive condition are output to static content Network is sliced in Optimal Control Strategy unit.
S293：Static content network is sliced control strategy unit and content network slice optimization generation problem is converted into one It is a to be directed to all the elements in system, the minimum optimization aim of weighting hop count based on acquisition content, be not more than in given threshold value Hold number of copies and meet the cache contents placement optimization problem that given content hit rate is desired for optimization restrictive condition, completes Optimization based on CCSOA algorithms to above-mentioned optimization problem, and exported to control strategy and distribute submodule output and delayed based on content Deposit resource and the optimal control result of the communication resource.
The result includes that system is being provided by the communication resource of granularity and content caching of content for all the elements distribution Source.
S294：Control strategy exports and distribution submodule receives Optimal Control Strategy and is based on this suboptimization control as a result, generating Content network slice information and the content network slice of result processed generate information.
The corresponding content network slice of the optimal control result is generated control information to be sent to and this optimal control knot The content network of the relevant micro-base station controller of fruit and/or wireless access point controller slice generates control strategy receiving submodule And/or the content network slice of user terminal controller generates control strategy receiving submodule, and content network slice information is sent out The content network slice for giving macro base station controller is searched and record sub module, and the content network slice of macro base station controller is searched And record sub module update is for the content network slice information of all the elements.
S295：The content network slice of micro-base station controller/wireless access point controller generates control strategy and receives submodule The content network of block and/or user terminal controller slice generates control strategy receiving submodule according to the content network received Slice generates control information and carries out resource allocation, generates the content network slice of corresponding content.
It is a during specific execute, it also further returns to macro base station controller and is cut for above-mentioned static content network The content caching optimization resetting success message of piece generating process.
Meanwhile the content network of micro-base station controller/wireless access point controller and customer controller is sliced management module In content network slice search and record sub module record and update the content network slice information, and to micro-base station control Device/wireless access point controller submodule feedback content network slice synchronous with the content network of customer controller slice is synchronous more New information.
S296：The synchronous submodule of content network slice of customer controller receives content network slice synchronized update information Afterwards, content network slice synchronized update maintenance request message is sent to control to the micro-base station controller belonging to it/wireless access point Device.
The synchronous submodule of content network slice of micro-base station controller/wireless access point controller receives content network slice Synchronized update information is sliced synchronized update maintenance request message to macro base station controller feedback content network.Macro base station controller Content network of the generation system administration manager transmission based on this content network slice optimization generating process is sliced to content network to cut Piece synchronized update maintenance request message, to complete based in system after this static content network slice optimization generating process Content network slice information synchronized update.
S297：It is excellent based on this content network slice that content network slice generation system administration manager receives macro base station controller The content network for changing generating process is sliced synchronized update maintenance request message, this static content network is not directed into system and is cut Piece optimization generates micro-base station controller/wireless access point controller of control process and customer controller sends and given birth to this suboptimization It is sliced synchronized update maintenance request message at the relevant content network of process, is completed for the slice optimization of this static content network The update of all the elements network slice information of generating process.
In the embodiment of the present invention, the optimization generation method of dynamic content network slice refers to that system takes for the content of user The content network slice optimization generation method based on single content that business request is completed.The optimization of dynamic content network slice generates Method can be completed by macro base station controller or specific micro-base station controller, be given at individually below macro base station controller and The dynamic content caching network slice optimization generation method based on CCSOA completed in micro-base station controller.
The dynamic content caching network slice optimization generation side based on CCSOA completed in macro base station controller is given below The step of method：
Step 1：Macro base station controller receives the user content service request from micro-base station controller, and enters step 2.
Step 2：Content network slice management module in macro base station controller finds the content network slice information, into Enter step 3-6.
Step 3-6：Content network slice control strategy submodule in macro base station controller starts dynamic based on the content State content network slice optimization generating process, and enter step 3-6-1.
Step 3-6-1：Own in information collection and analysis submodule acquisition system in macro base station controller (including micro- base Stand, wireless access point and user terminal) in node number, the networking status information between node and content caching network in Hold the content state information of caching, analyze and the network parameter of output system and content parameters generate submodule to control parameter, And enter step 3-6-2.
Step 3-6-2：Control parameter generates submodule and is joined according to the network of status information capture and analysis submodule output Number and content parameters are based on CCSOA algorithms based on the content network slice information found, and the weighting that selection obtains content is jumped Number minimizes the optimization aim that optimization generating process is sliced as this dynamic content network, and selection is not more than the interior of specific threshold Hold number of copies and meet specific content hit rate and it is expected to be sliced optimization when optimization generates as this dynamic content network Restrictive condition is generated based on above-mentioned optimization aim and optimization limitation and exports control parameter to the dynamic content net based on CCSOA Network is sliced in Optimal Control Strategy unit, and enters step 3-6-3.
Step 3-6-3：Dynamic content network is sliced control strategy unit and content network is sliced optimization generation problem conversion For one based on the weighting hop count minimum target as an optimization for obtaining content, and not more than the copy of content number of specific threshold and Meet specific content hit rate and it is expected that the cache contents of restrictive condition as an optimization place optimization problem, is based on CCSOA algorithms Complete the optimization to above-mentioned optimization problem；Dynamic content network is sliced control strategy unit and submodule is exported and distributed to control strategy Block exports the optimal control based on content caching resource and the communication resource as a result, i.e. using the content as granularity, and system is that this is interior Hold the communication resource and content caching resource of distribution；Meanwhile macro base station controller updates its content network slice and searches and record It is directed to the content network slice information of the content in submodule, and enters step 3-6-4.
Step 3-6-4：Control strategy exports and distribution submodule receives content caching Optimal Control Strategy as a result, in generation Content network slice information and content network slice generate control information, and by content network be sliced generate control information be sent to The content network of the relevant micro-base station controller of optimal control result and/or wireless access point controller slice generates control strategy The content network of receiving module and/or user terminal controller slice generates control strategy receiving module, and content network is sliced Information is sent to the user terminal controller S1 for asking the content by the micro-base station controller being connected with S1, enters step 3-6- 5。
Step 3-6-5：It is each to be controlled with the relevant micro-base station controller of this optimal control result and/or wireless access point The content network of device and/or user terminal controller slice generates control strategy receiving module and is cut according to the content network received Piece generates control information, controls its content caching submodule respectively and carries out content caching resetting, controls corresponding communication resource mould Block is the content network slice distribution communication resource, generates content network slice；It is each relevant with this optimal control result User terminal controller exports and is distributed to the control strategy of its affiliated micro-base station controller submodule and sends content caching optimization Success message is reset, each micro-base station controller receives the content caching optimization resetting success message of this suboptimization generating process, The information of the message is summarized, the content caching optimization after merging to macro base station controller transmission information, which is reset, successfully to disappear Breath, enters step 4.
Step 4：The control strategy of macro base station controller exports and distribution submodule is received from each micro-base station/wirelessly connect Enter the content caching optimization resetting success message of base site controller.
Step 5：Dynamic content network slice optimization generating process of this macro base station controller based on CCSOA terminates.
In the embodiment of the present invention, the dynamic content caching net based on CCSOA completed in micro-base station controller is given below The flow of network slice optimization generation method：
Step 1：Micro-base station controller SBS1 receives content service request from the user, is sliced and manages in its content network Module searches the content network slice information, if finding the content network slice information, enters step 3-4；If not yet There is the content network slice information for finding the content, then enters step 2.
Step 2：Micro-base station controller SBS1 allows the SBS2 controllers of its neighbour to be sliced in management module in its content network Search the content network slice information, if SBS2 controllers find the content network slice information, SBS2 controllers to SBS1 micro-base station controllers feed back the content network slice information of the content, enter step 3-5；If SBS2 controllers are not looked into The content network slice information is found, then micro-base station SBS1 sends the content service request to macro base station, and enters step 5.
Step 3-4：Content network slice control strategy submodule in SBS1 controllers starts the dynamic based on the content Content network slice optimization generating process, enters step 3-4-1.
Step 3-4-1：Information collection and analysis submodule according to owning user terminal number in this micro-base station of acquisition, with The content state information of content caching in networking status information and content caching network between the relevant node of this micro-base station, The network parameter of generation and content parameters are input to control parameter life by the network parameter and content parameters for analyzing and generating system At submodule, and enter step 3-4-2.
Step 3-4-2：Control parameter generates submodule and is joined according to the network of status information capture and analysis submodule output Number and content parameters are based on CCSOA algorithms based on the content network slice information found, and selection obtains the weighting of content Hop count minimum is sliced the optimization aim of optimization generating process as this dynamic content network, and selection is not more than the interior of specific threshold Hold number of copies and meet specific content hit rate and it is expected to be sliced optimization limitation when optimization generates as this content network Condition is generated based on above-mentioned optimization aim and optimization limitation and exports control parameter and cut to the dynamic content network based on CCSOA In piece control strategy submodule, 3-4-3 is entered step.
Step 3-4-3：Dynamic content network is sliced control strategy unit and content network is sliced optimization generation problem conversion For one based on obtaining the weighting hop count minimum of content target, not more than the copy of content number of specific threshold and full as an optimization The specific content hit rate of foot it is expected that the cache contents of restrictive condition as an optimization place optimization problem, completes to calculate based on CCSOA Optimization of the method to above-mentioned optimization problem, and exported to control strategy and distribute submodule output and be based on content caching resource and communication As a result, i.e. using the content as granularity, system is the communication resource and content caching money of the content assignment for the optimal control of resource Source；Enter step 3-4-4.
Step 3-4-4：Control strategy exports and distribution submodule receives Optimal Control Strategy and cut as a result, generating content network Piece generates control information and content network slice information；Content network is sliced by strategy output and distribution submodule generates control letter Breath, which is sent to be sliced with the content network of the relevant user terminal controller of this optimal control result, generates control strategy reception Content network slice information is sent to the user terminal controller of the S1 of request content by submodule；Enter step 3-4-5.
Step 3-4-5：Control is generated with the content network slice of the relevant user terminal controller of this optimal control result Policy receipt submodule processed generates according to the content network slice received and controls information, in the progress of control content cache sub-module Hold cache optimization resetting, control communication resource module is the content network slice distribution communication resource；After the completion of resource allocation, with The relevant user terminal controller of this optimal control result content network slice generate control strategy receiving submodule to touch The micro-base station controller for sending out this content network slice optimization generating process sends content caching optimization resetting success message；Into Step 4.
Step 3-5：The content network of SBS1 controllers is sliced SBS2 controller of the control strategy submodule based on its neighbour The content network slice information of feedback starts the dynamic content network slice optimization generating process based on the content, and enters step Rapid 3-5-1.
Step 3-5-1：It is controlled belonging to information collection and analysis submodule acquisition micro-base station SBS1 in SBS1 controllers User terminal number, with the networking status informations of the relevant nodes of SBS1 and content caching network and each content caching Content state information is analyzed and is exported network parameter and content parameters and generate submodule to control parameter, enters step 3-5-2.
Step 3-5-2：The control parameter of SBS1 controllers generates submodule according to status information capture and analysis submodule The network parameter and content parameters of output are based on based on the content network slice information that its neighbours' micro-base station controller is found CCSOA algorithms select the weighting hop count for obtaining content to minimize and are sliced optimization generating process as this dynamic content network Optimization aim selects the not more than copy of content number of specific threshold and meets specific content hit rate expectation as content net Optimization restrictive condition when network slice optimization generates, is generated based on above-mentioned optimization aim and optimization limitation and exports control parameter and arrived In dynamic content network slice control strategy unit based on CCSOA, 3-5-3 is entered step.
Step 3-5-3：Dynamic content network is sliced control strategy unit and content network is sliced optimization generation problem conversion For one based on the copy of content number and satisfaction for obtaining the weighting hop count minimum of content target, not more than specific threshold as an optimization Specific content hit rate it is expected that the cache contents of restrictive condition as an optimization place optimization problem, completes to be based on CCSOA algorithms Optimization to above-mentioned optimization problem generates content network slice；It is exported to control strategy and distributes submodule output and be based on content For the Optimal Control Strategy of cache resources and the communication resource as a result, i.e. using the content as granularity, system is the logical of the content assignment Believe resource and content caching resource；And enter step 3-5-4.
Step 3-5-4：Control strategy exports and distribution submodule receives optimal control as a result, being based on the optimal control result It generates content network slice and generates control information and content network slice information, corresponding content network is sliced and generates control letter Breath is sent to whole with the relevant micro-base station controller of this optimal control result and/or wireless access point controller and/or user The content network slice of side controller generates control strategy receiving submodule, and content network slice information is sent to user terminal Controller S1, and enter step 3-5-5.
Step 3-5-5：With the relevant micro-base station controller of this optimal control result and/or wireless access point controller And/or the content network slice of user terminal controller generates control strategy receiving submodule and is cut according to the content network received Piece generates control information, and control content cache sub-module carries out content caching resetting, and control communication resource module is the content net The network slice distribution communication resource, generates content network slice；It is relevant micro- with this optimal control result after the completion of resource allocation Base station controller and/or wireless access point controller and/or user terminal controller are sliced to this dynamic content network is triggered The micro-base station controller SBS1 for optimizing generating process sends content caching optimization resetting success message；And enter step 4.
Step 4：The control strategy of micro-base station controller exports and distribution submodule is received from each and this suboptimization control The content caching optimization resetting success message of result relevant user terminal controller and micro-base station controller feedback processed.
Step 5：Dynamic content network slice optimization generating process of this micro-base station based on CCSOA terminates.
It should be noted that being given above the dynamic content network slice based on CCSOA of micro-base station controller completion The flow for optimizing generating process, the optimization that can be used for the dynamic content network slice of wireless access point controller generate.
In the embodiment of the present invention, under network scenarios shown in Fig. 2, when user equipment S1 sends out a content service request When, system is by triggering for the optimization generating process of the dynamic content network slice of the content service request.Content information is searched for After process, the resource allocation process in the mobile radio access network based on this search result, including content will be completed The distribution of cache resources and the communication resource finally generates the content net for the content in current mobile radio access network Network is sliced.
The system of being given below carries out content search based on the content service request that user sends, by triggering dynamic content net Network slice optimization generating process, generates the content network slice based on the content, completes answering to the content service request of user Service process is answered, this process is as follows：
Step 1：The user terminal controller of S1 generates and receives mould according to the operation of user's request content service in message Content service request message is generated in block；Message generates and receiving module extraction content information mark, and content information is identified It is sent to the content network slice management module of the user terminal controller of S1；The content net in user terminal controller in S1 Network slice management module searches the content network slice information, if finding the content network slice information, enters step 7-1；If not finding the content network slice information, which is sent to the neighboring user terminals of S1 Controller, and enter step 2.
Step 2：Content network slice management module in the neighboring user terminals controller of user terminal S1 searches content Network slice information enters step 7-2 if finding the content network slice information；If neighboring user terminals are not looked into The content network slice information is found, then gives user terminal controller S1 to return to the content search failed message based on the content, And enter step 3.
Step 3：User terminal S1 selects the highest subscriber terminal equipment S2 of angle value in its neighboring user terminals, and content is taken Business request is sent to the user terminal controller of S2, it is asked to search the content information；The user terminal controller of S2 is by its neighbour It occupies user terminal controller and is sliced the content network slice information searched in management module corresponding to the content in its content network, If finding the content network slice information, 7-3 is entered step；If not finding the content network slice information, Failed message then is searched to the user terminal controller returned content of S1, S1 user terminals controller is then to coupled micro- base Station control SBS1 sends content service request, and enters step 4.
Step 4：The micro-base station controller for the micro-base station SBS1 being connected with S1 executes the dynamic content network based on CCSOA and cuts Piece optimizes generating process (i.e. the Dynamic-SBS1 processes based on CCSOA).
Step 4-1：Judge whether found corresponding to the request content at the end of the Dynamic-SBS1 processes based on CCSOA Content network slice information, if it is not, then content service request is sent to the macro base belonging to it by micro-base station controller SBS1 Station control MBS1 executes the dynamic content network slice optimization generating process based on CCSOA (i.e. based on CCSOA's by MBS1 Dynamic-MBS1 processes), it is interior to obtain this according to the newer content network slice information received for S1 user terminals controller Hold；Enter step 8；If so, it is interior to obtain this according to the newer content network slice information received for S1 user terminals controller Hold；Enter step 8.
Step 7-1：Content network slice management module update in S1 user terminal controllers is directed to the content of the content Network slice information, S1 obtain the content according to newer content network slice information；Enter step 8.
Step 7-2：Content network slice management module in S1 user terminal controllers selects one of neighbor user The content network slice information that terminal control unit is found, and update based on the content network slice information content network of the S1 The content network slice information of the content is directed in slice lookup and record sub module, S1 is sliced according to updated content network Information obtains the content；Enter step 8.
Step 7-3：Content network slice management module in S2 user terminal controllers selects one of neighbor device The content network slice information that controller is found；Content network slice management module update in S2 user terminal controllers should The content network slice information is simultaneously sent to S1 by the information of content network slice；Content network in S1 user terminal controllers Slice management module updates the information of content network slice；S1 user terminals controller is sliced according to updated content network Information obtains the content；Enter step 8.
Step 8：This carries out content search, by triggering based on CCSOA's based on the content service request that user sends Dynamic content network slice optimization generating process generates content network slice based on the content, completes content service to user The answer service process of request terminates.
In the present embodiment, state needed for mobile radio access network content network slicing processes is generated by acquisition and is believed Breath, and network is determined according to present communications resource state information, content resource status information and content service request status information Parameter and content parameters, and according to status information, network parameter and the content parameters acquired, corresponding control parameter is generated, And according to corresponding control parameter, mobile radio access network content network is generated by the way of statically and/or dynamically and is cut Piece, the access delay that can be improved the request hit rate of content service, reduce content service generate content network by optimization and cut Piece can improve the resource utilization of Radio Access Network, the content stream of reduction mobile radio access network to core network Amount load, is finally reached the purpose for reducing the operation cost and investment spending that provide content service.
Figure 30 is the structure for the mobile radio access network content network slice generation system that one embodiment of the invention proposes Schematic diagram.
Referring to Figure 30, which includes：
Acquisition module 301, for making the acquisition of the first controller generate the mobile radio access network content network slice Status information needed for process, and asked according to present communications resource state information, content resource status information and content service Status information is asked to determine network parameter and content parameters；
First generation module 302, for according to status information, the network parameter and the content parameters acquired, generating Corresponding control parameter；
Second generation module 303, for according to the corresponding control parameter, being given birth to by the way of statically and/or dynamically It is sliced at the mobile radio access network content network；
Second generation module 303, including：
First generation unit 3031, for according to the corresponding control parameter, based on target network performance indicator and/or User content Service Quality Metrics carry out content net to caching all or part of content in the mobile radio access network Network is sliced, and obtains multiple content network slices, wherein each content network slice includes needing to distribute to its communication resource With content caching resource；
Second generation unit 3032, second controller/third controller for being controlled according to first controller The content service request of transmission and the corresponding control parameter, based on the target network performance indicator and/or with indoor Hold Service Quality Metrics, content network slice is carried out to requested content in the mobile radio access network, is obtained single Content network is sliced, wherein each content network slice includes needing to distribute to its communication resource and content caching resource；
Wherein, first controller, the second controller, the third controller type can be respectively macro base Any one of station level controller, micro-base station grade controller and wireless access point controller.
Optionally, in some embodiments, first controller is user terminal controller, is in first controller When the user terminal controller, the second controller/third controller is in the mobile radio access network, except described The controller of other user terminals side except first controller.
Optionally, the status information includes but not limited to：Second controller/third that first controller is controlled The number of controller, first controller communicate correlated condition with first between the second controller/third controller Second between information, the number of the controlled user terminal of the first controller, the second controller/third controller is logical Believe the third communication correlated condition of related status information, the second controller/between third controller and the user terminal The content caching relevant information belonging to third communication related status information, each controller between information, multiple user terminals, with And content service request status information.
Optionally, in some embodiments, referring to Figure 31, which further includes：
First receiving module 304, for making the first controller receive in the second controller/third controller transmission Content network is sliced synchronized update maintenance request message, and according to the content identification information in the synchronized update maintenance request message Update is synchronized to corresponding content network slice information.
Optionally, in some embodiments, first generation unit 3031 is specifically used for：
First controller is set to determine whether the system performance index of the acquired status information instruction reaches pre- If threshold value, in the not up to preset threshold value, according to the corresponding control parameter, triggering is using life in the form of static It is sliced at the mobile radio access network content network；
The mobile radio access network content network slice of the generation in the form of static, including：
Optimization aim is determined according to the network parameter and content parameters, and obtains and the acquired state is believed in advance Predetermined threshold value that breath is configured, corresponding；
According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or user content Service Quality Metrics carry out content network slice to caching all or part of content in the mobile radio access network, Obtain multiple content network slices；
Wherein, the optimization aim includes but not limited to：Each content the content service request of user class hit rate, The access delay of the resource usage amount, the utilization rate of communication link, content of communication link；
The corresponding predetermined threshold value includes but not limited to：Predetermined threshold value corresponding with the resource of communication link and content Time delay, the corresponding predetermined threshold value of maximum hop count parameter, the predetermined threshold value corresponding with the value at cost of content is obtained of access.
Optionally, in some embodiments, second generation unit 3032 is specifically used for：
Optimization aim is determined according to the network parameter and content parameters, and obtains and the acquired state is believed in advance Predetermined threshold value that breath is configured, corresponding；
The content service request belonging to the content service request status information is inquired, user in content service request is obtained The content information of request；
According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or user content Service Quality Metrics, the content network that the content is generated to requested content in the mobile radio access network are sliced, obtain To the single content network slice based on the content；
Wherein, the optimization aim includes but not limited to：Each content the content service request of user class hit rate, The access delay of the resource usage amount, the utilization rate of communication link, content of communication link；
The corresponding predetermined threshold value includes but not limited to：Predetermined threshold value corresponding with the resource of communication link and content The delay of access, the corresponding predetermined threshold value of maximum hop count parameter, predetermined threshold value corresponding with the value at cost of content is obtained.
Optionally, in some embodiments, referring to Figure 31, which further includes：
Second receiving module 305, for making the first controller receive in the second controller/third controller transmission Hold service request, and corresponding content network slice information inquired according to the content identification information in the content service request, And the corresponding content network slice information is issued to the second controller/third controller.
Divide configuration module 306, for the spatial cache of the corresponding content caching of each controller to be divided configuration, obtain with Each corresponding first spatial cache of controller and the second spatial cache, and first spatial cache is configured to manage independently Content caching space, configure second spatial cache in the content caching space of controlled management, wherein it is described from be responsible for The content caching space of reason is managed by its affiliated controller, and the content caching space of the controlled management is to be based on content net Network slice corresponding content caching optimal control result progress controlled management when generating.
Content caching control module 307, the content caching for the controller output belonging to the second spatial cache are excellent Change resetting result information, generate controlled content cache management mechanism, to carry out weight to the second spatial cache institute cache contents It sets；
According to the autonomous content caching management rule that system initialization is arranged, the content of the first spatial cache is based on The content caching control of autonomous content caching management rule；
Wherein, autonomous content caching controlling mechanism includes that content insertion mechanism and content remove mechanism, content insertion mechanism Including but not limited to：Probability caches and random cache content insertion mechanism, and content removes mechanism and includes but not limited to：It is minimum recently Algorithm LFU is used using algorithm LRU and minimum frequency, and according to preset period of time, removes the interior of cache contents periodically Hold removal mechanism.
Content caching management module 308, for based on generated multiple content networks slice to first controller, Belonging to the second controller, the third controller and user terminal controller with content network be sliced generate when pair The relevant content caching of content caching optimal control result answered is managed.
Content read module 309, for positioning institute according to the routing information in the corresponding content network slice information The spatial cache that content is stored is stated, is read in corresponding with the content identification information from the stored spatial cache Hold, and by the corresponding content network slice information and the corresponding down sending content to the second controller/third control Device processed.
Optionally, in some embodiments, second receiving module 305 is specifically used for：
According to the content identification information in the content service request inquiry pair in management module is sliced in its content network The content network slice information answered；
If inquiry obtains the corresponding content network slice information, will be under the corresponding content network slice information It is sent to the second controller/third controller；
If not inquiring to obtain the corresponding content network slice information, the content service request is forwarded to and institute It states in the adjacent controller of the first controller, so that the adjacent controller is according to the content mark in the content service request Know the corresponding content network slice information of information inquiry.
Second receiving module 305, also particularly useful for：
If the adjacent controller is not inquired to obtain the corresponding content network slice information, the content is taken Business request is forwarded in the higher controller controlled the adjacent controller, so that the higher controller is according to institute The content identification information stated in content service request inquires corresponding content network slice information.
It should be noted that aforementioned explain mobile radio access network content network slice generation method embodiment It is bright, it is also applied for the mobile radio access network content network slice generation system of the embodiment, therefore details are not described herein.
In the present embodiment, state needed for mobile radio access network content network slicing processes is generated by acquisition and is believed Breath, and network is determined according to present communications resource state information, content resource status information and content service request status information Parameter and content parameters, and according to status information, network parameter and the content parameters acquired, corresponding control parameter is generated, And according to corresponding control parameter, mobile radio access network content network is generated by the way of statically and/or dynamically and is cut Piece, the access delay that can be improved the request hit rate of content service, reduce content service generate content network by optimization and cut Piece can improve the resource utilization of Radio Access Network, the content stream of reduction mobile radio access network to core network Amount load, is finally reached the purpose for reducing the operation cost and investment spending that provide content service.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without It can be interpreted as indicating or implying relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple " It is two or more.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, it can also That each unit physically exists alone, can also two or more units be integrated in a module.Above-mentioned integrated mould The form that hardware had both may be used in block is realized, can also be realized in the form of software function module.The integrated module is such as Fruit is realized in the form of software function module and when sold or used as an independent product, can also be stored in a computer In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any One or more embodiments or example in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (26)

1. a kind of mobile radio access network content network is sliced generation method, it is applied in mobile radio access network, it is special Sign is, includes the following steps：
The acquisition of first controller generates status information needed for the mobile radio access network content network slicing processes, simultaneously According to present communications resource state information, content resource status information and content service request status information determine network parameter and Content parameters；
According to status information, the network parameter and the content parameters acquired, corresponding control parameter is generated；
According to the corresponding control parameter, generated in the mobile radio access network in the form of statically and/or dynamically Content network is sliced；
It is described according to the corresponding control parameter, the mobile radio access network content network is generated in the form of static Slice, including：
According to the corresponding control parameter, target network performance indicator and/or user content Service Quality Metrics are based on, to institute It states and caches all or part of content progress content network slice in mobile radio access network, obtain multiple content networks and cut Piece, wherein each content network slice includes needing to distribute to its communication resource and content caching resource；
It is described according to the corresponding control parameter, the mobile radio access network content network is generated using dynamic form Slice, including：
The content service request that the second controller controlled according to first controller/third controller is sent, Yi Jisuo Corresponding control parameter is stated, the target network performance indicator and/or user content Service Quality Metrics are based on, to the movement Requested content carries out content network slice in Radio Access Network, obtains single content network slice, wherein each content Network slice includes needing to distribute to its communication resource and content caching resource；
Wherein, first controller, the second controller, the third controller type can be respectively macro base station grade Any one of controller, micro-base station grade controller and wireless access point controller.
2. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that wherein,
The status information includes：The number of the second controller that first controller is controlled/third controller, described First between one controller and the second controller/third controller communicates related status information, first controller The second communication related status information, described between the number of controlled user terminal, the second controller/third controller The third communication related status information of second controller/between third controller and the user terminal, multiple user terminals it Between third communication related status information, content caching relevant information and content service request state belonging to each controller Information.
3. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that also wrap It includes：
First controller receives the content network slice synchronized update maintenance request that the second controller/third controller is sent Message, and letter is sliced to corresponding content network according to the content identification information in the synchronized update maintenance request message Breath synchronizes update.
4. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that described According to the corresponding control parameter, the mobile radio access network content network slice is generated in the form of static, including：
First controller determines whether the system performance index of the acquired status information instruction reaches preset threshold Value, in the not up to preset threshold value, according to the corresponding control parameter, triggering is in the form of static described in generation Mobile radio access network content network is sliced；
The mobile radio access network content network slice of the generation in the form of static, including：
Optimization aim is determined according to the network parameter and content parameters, and is obtained in advance to the acquired status information institute Configuration, corresponding predetermined threshold value；
According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or user content service Quality index carries out content network slice to caching all or part of content in the mobile radio access network, obtains Multiple content network slices；
Wherein, the optimization aim includes：Each content is in the hit rate of the content service request of user class, the money of communication link The access delay of source usage amount, the utilization rate of communication link, content；
The corresponding predetermined threshold value includes：Predetermined threshold value corresponding with the resource of communication link, the time delay, most with content access The corresponding predetermined threshold value of hop count parameter, predetermined threshold value corresponding with the value at cost of content is obtained greatly.
5. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that described According to the corresponding control parameter, the mobile radio access network content network is generated using dynamic form and is sliced, including：
Optimization aim is determined according to the network parameter and content parameters, and is obtained in advance to the acquired status information institute Configuration, corresponding predetermined threshold value；
The content service request belonging to the content service request status information is inquired, user in content service request is obtained and asks Content information；
According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or user content service Quality index, the content network that the content is generated to requested content in the mobile radio access network are sliced, and obtain base It is sliced in the single content network of the content；
Wherein, the optimization aim includes：Each content is in the hit rate of the content service request of user class, the money of communication link The access delay of source usage amount, the utilization rate of communication link, content；
The corresponding predetermined threshold value includes：Predetermined threshold value corresponding with the resource of communication link, the delay, most with content access The corresponding predetermined threshold value of hop count parameter, predetermined threshold value corresponding with the value at cost of content is obtained greatly.
6. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that also wrap It includes：
First controller receives the content service request that the second controller/third controller is sent, and according to the content Content identification information in service request inquires corresponding content network slice information, and the corresponding content network is sliced Information is issued to the second controller/third controller.
7. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that also wrap It includes：
The spatial cache of the corresponding content caching of each controller is divided into configuration, obtains the first caching corresponding with each controller Space and the second spatial cache；
By first spatial cache be configured to autonomous management content caching space, by second spatial cache be configured to by The content caching space of keyholed back plate reason, wherein the content caching space of the autonomous management is managed by its affiliated controller, institute The content caching space for stating controlled management be when being generated based on content network slice corresponding content caching optimal control result into Row controlled management.
8. mobile radio access network content network as claimed in claim 7 is sliced generation method, which is characterized in that also wrap It includes：
The content caching optimization resetting result information of controller output of first controller belonging to the second spatial cache, Controlled content cache management mechanism is generated, to be reset to the second spatial cache institute cache contents；
According to the autonomous content caching management rule that system initialization is arranged, the content of the first spatial cache is carried out based on autonomous The content caching of content caching management rule controls；
Wherein, autonomous content caching controlling mechanism includes that content insertion mechanism and content remove mechanism, and content insertion mechanism includes： Probability caches and random cache content insertion mechanism, and content removes mechanism and includes：Least recently used algorithm LRU and minimum frequency Using algorithm LFU, and according to preset period of time, the content for removing cache contents periodically removes mechanism.
9. mobile radio access network content network as described in claim 1 is sliced generation method, which is characterized in that described the One controller is user terminal controller, when first controller is the user terminal controller, second control Device/third controller is in the mobile radio access network, other user terminals side in addition to first controller Controller.
10. mobile radio access network content network as claimed in claim 9 is sliced generation method, which is characterized in that also wrap It includes：
First controller, the second controller, the third are controlled based on the multiple content networks slice generated Corresponding content caching optimal control result when generating is sliced with content network belonging to device and the user terminal controller Relevant content caching is managed.
11. mobile radio access network content network as claimed in claim 3 is sliced generation method, which is characterized in that described Content network slice information includes：The spatial cache mark that content identification information, the content store, and obtain the caching The routing information of the corresponding spatial cache of space identification, the method further include：
The spatial cache that the content is stored is positioned according to the routing information in the corresponding content network slice information；
Content corresponding with the content identification information is read from the stored spatial cache, and will be described corresponding interior Content network slice information and the corresponding down sending content are to the second controller/third controller.
12. mobile radio access network content network as claimed in claim 6 is sliced generation method, which is characterized in that described The number of first controller is at least one, and first controller receives what the second controller/third controller was sent Content service request, and corresponding content network slice letter is inquired according to the content identification information in the content service request Breath, and the corresponding content network slice information is issued to the second controller/third controller, including：
First controller is sliced management mould according to the content identification information in the content service request in its content network Corresponding content network slice information is inquired in block；
If inquiry obtains the corresponding content network slice information, the corresponding content network slice information is issued to The second controller/third controller；
If not inquiring to obtain the corresponding content network slice information, the content service request is forwarded to and described In the adjacent controller of one controller, so that the adjacent controller is believed according to the content identification in the content service request Breath inquires corresponding content network slice information.
13. mobile radio access network content network as described in claim 1 or 6 is sliced generation method, which is characterized in that First controller is the micro-base station grade controller, the wireless access point controller and user terminal control When any one of device, further include：
If the adjacent controller is not inquired to obtain the corresponding content network slice information, the content service is asked It asks in the higher controller for being forwarded to and being controlled the adjacent controller, so that the higher controller is according to described interior The content identification information held in service request inquires corresponding content network slice information.
14. a kind of mobile radio access network content network is sliced generation system, which is characterized in that including：
Acquisition module, for making the acquisition of the first controller generate institute in the mobile radio access network content network slicing processes The status information of need is simultaneously believed according to present communications resource state information, content resource status information and content service request state Breath determines network parameter and content parameters；
First generation module, for according to status information, the network parameter and the content parameters acquired, generating corresponding control Parameter processed；
Second generation module, for according to the corresponding control parameter, the shifting to be generated in the form of statically and/or dynamically Dynamic Radio Access Network content network slice；
Second generation module, including：
First generation unit, for according to the corresponding control parameter, being based on target network performance indicator and/or user content Service Quality Metrics carry out content network slice to caching all or part of content in the mobile radio access network, Obtain multiple content network slices, wherein each content network slice includes needing to distribute to its communication resource and content Cache resources；
Second generation unit, in second controller for being controlled according to first controller/third controller is sent Hold service request and the corresponding control parameter, is based on the target network performance indicator and/or user content Service Quality Figureofmerit carries out content network slice to requested content in the mobile radio access network, obtains single content network Slice, wherein each content network slice includes needing to distribute to its communication resource and content caching resource；
Wherein, first controller, the second controller, the third controller type can be respectively macro base station grade Any one of controller, micro-base station grade controller and wireless access point controller.
15. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that its In,
The status information includes：The number of the second controller that first controller is controlled/third controller, described First between one controller and the second controller/third controller communicates related status information, first controller The second communication related status information, described between the number of controlled user terminal, the second controller/third controller The third communication related status information of second controller/between third controller and the user terminal, multiple user terminals it Between third communication related status information, content caching relevant information and content service request state belonging to each controller Information.
16. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that also wrap It includes：
First receiving module, for making the first controller receive the content network that the second controller/third controller is sent Be sliced synchronized update maintenance request message, and according in the synchronized update maintenance request message content identification information pair and its Corresponding content network slice information synchronizes update.
17. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that described First generation unit, is specifically used for：
First controller is set to determine whether the system performance index of the acquired status information instruction reaches preset Threshold value, in the not up to preset threshold value, according to the corresponding control parameter, triggering generates institute in the form of static State mobile radio access network content network slice；
The mobile radio access network content network slice of the generation in the form of static, including：
Optimization aim is determined according to the network parameter and content parameters, and is obtained in advance to the acquired status information institute Configuration, corresponding predetermined threshold value；
According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or user content service Quality index carries out content network slice to caching all or part of content in the mobile radio access network, obtains Multiple content network slices；
Wherein, the optimization aim includes：Each content is in the hit rate of the content service request of user class, the money of communication link The access delay of source usage amount, the utilization rate of communication link, content；
The corresponding predetermined threshold value includes：Predetermined threshold value corresponding with the resource of communication link, the time delay, most with content access The corresponding predetermined threshold value of hop count parameter, predetermined threshold value corresponding with the value at cost of content is obtained greatly.
18. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that described Second generation unit, is specifically used for：
Optimization aim is determined according to the network parameter and content parameters, and is obtained in advance to the acquired status information institute Configuration, corresponding predetermined threshold value；
The content service request belonging to the content service request status information is inquired, user in content service request is obtained and asks Content information；
According to the optimization aim, the corresponding predetermined threshold value, it is based on target network performance indicator and/or user content service Quality index, the content network that the content is generated to requested content in the mobile radio access network are sliced, and obtain base It is sliced in the single content network of the content；
Wherein, the optimization aim includes：Each content is in the hit rate of the content service request of user class, the money of communication link The access delay of source usage amount, the utilization rate of communication link, content；
The corresponding predetermined threshold value includes：Predetermined threshold value corresponding with the resource of communication link, the delay, most with content access The corresponding predetermined threshold value of hop count parameter, predetermined threshold value corresponding with the value at cost of content is obtained greatly.
19. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that also wrap It includes：
Second receiving module, for making the first controller receive the content service that the second controller/third controller is sent Request, and corresponding content network slice information is inquired according to the content identification information in the content service request, and by institute It states corresponding content network slice information and is issued to the second controller/third controller.
20. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that also wrap It includes：
Divide configuration module, for the spatial cache of the corresponding content caching of each controller to be divided configuration, obtains and each control Corresponding first spatial cache of device processed and the second spatial cache, and configure first spatial cache to the content of autonomous management Spatial cache configures second spatial cache in the content caching space of controlled management, wherein the autonomous management it is interior Hold spatial cache to be managed by its affiliated controller, the content caching space of the controlled management is sliced based on content network Corresponding content caching optimal control result carries out controlled management when generation.
21. mobile radio access network content network as claimed in claim 20 is sliced generation system, which is characterized in that also wrap It includes：
Content caching control module, the content caching optimization resetting knot for the controller output belonging to the second spatial cache Fruit information generates controlled content cache management mechanism, to be reset to the second spatial cache institute cache contents；
According to the autonomous content caching management rule that system initialization is arranged, the content of the first spatial cache is carried out based on autonomous The content caching of content caching management rule controls；
Wherein, autonomous content caching controlling mechanism includes that content insertion mechanism and content remove mechanism, and content insertion mechanism includes： Probability caches and random cache content insertion mechanism, and content removes mechanism and includes：Least recently used algorithm LRU and minimum frequency Using algorithm LFU, and according to preset period of time, the content for removing cache contents periodically removes mechanism.
22. mobile radio access network content network as claimed in claim 14 is sliced generation system, which is characterized in that described First controller is user terminal controller, when first controller is the user terminal controller, second control Device processed/third controller is the other user terminals side in addition to first controller in the mobile radio access network Controller.
23. mobile radio access network content network as claimed in claim 22 is sliced generation system, which is characterized in that also wrap It includes：
Content caching management module, for based on the multiple content networks slice generated to first controller, described the Being sliced with content network in corresponding when generating belonging to two controllers, the third controller and user terminal controller Hold the relevant content caching of cache optimization control result to be managed.
24. mobile radio access network content network as claimed in claim 16 is sliced generation system, which is characterized in that described Content network slice information includes：The spatial cache mark that content identification information, the content store, and obtain the caching The routing information of the corresponding spatial cache of space identification, the system also includes：
Content read module, for positioning the content institute according to the routing information in the corresponding content network slice information The spatial cache of storage reads content corresponding with the content identification information from the stored spatial cache, and will The corresponding content network slice information and the corresponding down sending content are to the second controller/third controller.
25. mobile radio access network content network as claimed in claim 19 is sliced generation system, which is characterized in that described Second receiving module, is specifically used for：
According to the content identification information in the content service request its content network be sliced management module in inquire it is corresponding Content network slice information；
If inquiry obtains the corresponding content network slice information, the corresponding content network slice information is issued to The second controller/third controller；
If not inquiring to obtain the corresponding content network slice information, the content service request is forwarded to and described In the adjacent controller of one controller, so that the adjacent controller is believed according to the content identification in the content service request Breath inquires corresponding content network slice information.
26. the mobile radio access network content network as described in claim 14 or 19 is sliced generation system, which is characterized in that Second receiving module, also particularly useful for：
If the adjacent controller is not inquired to obtain the corresponding content network slice information, the content service is asked It asks in the higher controller for being forwarded to and being controlled the adjacent controller, so that the higher controller is according to described interior The content identification information held in service request inquires corresponding content network slice information.
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