CN106790617B

CN106790617B - Collaborative content cache control system and method

Info

Publication number: CN106790617B
Application number: CN201611255847.XA
Authority: CN
Inventors: 靳浩; 徐丹; 赵成林; 梁栋
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Beijing University of Posts and Telecommunications
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2019-07-16
Anticipated expiration: 2036-12-30
Also published as: CN106790617A; WO2018120802A1

Abstract

The present invention proposes that a kind of collaborative content cache control system and method, the system include: the first controller when generation first is requested, according in the first request content information mark and present control mode generate the first control information；Multiple second controllers generate the second control information according to the first control information；Multiple third controllers generate third according to the second control information and control information；Multiple 4th controllers control information according to third and generate the 4th control information；Terminating stage controller identifies corresponding content information according to the content information that the 4th control acquisition of information is controlled and controls the content caching of itself corresponding terminal；The content caching of the controller in the combination of different Virtual Controller clusters generated according to the first request to Virtual Controller cluster generation module controls.Different collaborative content cache optimization targets centered on capable of neatly supporting based on user-center and/or the network optimization through the invention, promote the scalability and flexibility of this method.

Description

Collaborative content cache control system and method

Technical field

The present invention relates to network communication technology field more particularly to a kind of collaborative content cache control system and methods.

Background technique

Now with the continuous development of network communication technology, demand of the mobile subscriber to the multimedia service based on content is in Exponential increase causes network load flow to increase sharply, and causes huge pressure to mobile network, and in mobile radio access network and The demand of the communication link bandwidth of backhaul network also increasingly increases.On the other hand, due to having been had based on content information service The characteristics of from media business, causes the content quantity of content information business in network to increase in explosive, due to base station and user The spatial cache in terminal buffers area is limited, can not cache all content informations, therefore, it is necessary to mobile wireless network is based on Content caching optimize control.With the development of 5G technology, the mobile wireless networking of customer-centric and its wireless network Network resource optimization has become one urgently and needs the needs of meeting, meanwhile, with SDN (Software Defined Network, software defined network) technology it is increasingly mature, the fortune of operator is reduced using SDN technology in mobile wireless network Cost is sought, an important need of the operator when constructing business network is also become.Therefore, building can customer-centric, drop The mobile wireless content caching Optimal Control System of low operator cost, which becomes in Current Content cache control system, to be needed The critical issue of solution.

Currently, being typically employed in Mobile Network Operator in the content caching control program based on mobile wireless network Global controller offer content information service is set outside network and passes through shifting in the mobile wireless network of Mobile Network Operator Dynamic Radio Access Network carries out MPS process, and in each cell, base station provides certain content information caching function, all bases Stand and interconnected by high speed network (such as optical fiber), each optimizing cells selection content information is cached, meanwhile, base station according to The changes in demand of family content information timely updates the content information in caching, and content information can be shared between cells, To improve mobile subscriber in the content information hit rate of network edge；By macro base station, micro-base station, wireless access point device with And in the heterogeneous hierarchical wireless networks of the mobile subscriber terminal composition with caching capabilities, in general, macro base station and micro-base station configuration Caching capabilities it is different, the memory space of macro base station is greater than the memory space of micro-base station, and content caching control system can generally be set Determining optimization aim is to minimize user's time delay, minimize system energy consumption, maximize content caching hit of the user at micro-base station Rate etc., and thus determine that content information is distributed to finger in network flow non-peak period by the caching Placement Strategy of content information In fixed base station or access device.

In above-mentioned solution, the content caching optimal control based on content information service request lacks flexibility, And most of the cache optimization control of the prior art is designed according to determining optimization aim, accordingly, it is difficult to adapt to based on use Content caching centered on family or centered on the network optimization optimizes demand.

Summary of the invention

The present invention is directed to solve at least some of the technical problems in related technologies.

For this purpose, can complete an object of the present invention is to provide a kind of collaborative content cache control system based on complete The content caching optimal control at office's optimization visual angle, is neatly supported based on user-center and/or based on centered on the network optimization Different collaborative content cache optimization targets, promote the scalability and flexibility of the collaborative content buffer control method.

It is another object of the present invention to propose a kind of collaborative content buffer control method.

It is another object of the present invention to propose a kind of collaborative content buffer control device.

It is another object of the present invention to propose a kind of non-transitorycomputer readable storage medium.

It is another object of the present invention to propose a kind of computer program product.

In order to achieve the above objectives, the collaborative content cache control system that first aspect present invention embodiment proposes, the association It include following at least two prescription controller and Virtual Controller cluster generation module with content caching control system, wherein institute Prescription controller is stated to be one of the following: the first controller, for acquiring multiple second controllers and reporting when generation first is requested Current first network status information and the first buffer status information, current control model is obtained from preset configuration table, and It is identified according to the content information in first request and the control model generates and believes with the current first network state The first control information corresponding with the first buffer status information is ceased, and the first control information is distributed to corresponding control Device, wherein include but is not limited in the first control information: controller identifier, buffer control mode and being controlled interior Hold message identification；Multiple second controllers, for receiving the first control information of the first controller distribution, and according to described The controller identifier and the buffer control mode in first control information generate at the same level multiple second controllers and/ Or the second control information that the content caching of multiple third controllers of junior is controlled, and information is controlled by described second It is distributed to corresponding second controller and/or third controller；Multiple third controllers, the third controller is for receiving When the second control information of the second controller distribution, the controller identifier and the institute in information are controlled according to described second State buffer control mode generate to the content cachings of multiple 4th controllers of multiple third controllers at the same level and/or junior into The third of row control controls information, and third control information is distributed to corresponding third controller and/or the 4th control Device processed；Multiple 4th controllers, for controlling the institute in information according to the third when receiving the third control information Controller identifier, the buffer control mode and the controlled content information mark is stated to generate to multiple 4th controls at the same level The 4th control information that the content caching of device processed and/or multiple terminating stage controllers of junior is controlled, and by described the Four control information are distributed to corresponding 4th controller and/or terminating stage controller；Multiple terminating stage controllers, the terminating stage Controller is used to identify corresponding content information according to the content information that the 4th control acquisition of information is controlled, and will be described Content information is stored in caching corresponding with the terminating stage controller, and according to described slow in the 4th control information Control mode is deposited to control the content caching of the corresponding user terminal of the terminating stage controller；The Virtual Controller cluster Generation module for being generated the combination of different Virtual Controller clusters based on described at least two prescription controller, and is controlled The collaborative content cache control system switches in the combination of the different Virtual Controller cluster, the collaborative content caching Control system controls the content caching of the controller in the combination of different Virtual Controller clusters according to first request, In, prescription controller included in the combination of the different Virtual Controller cluster is different；Wherein, first controller, The second controller, the third controller, the 4th controller type can be respectively global controller, macro base station Any one of grade controller, micro-base station grade controller and thin cloud cluster head grade controller.

The collaborative content cache control system that first aspect present invention embodiment proposes, is being received by the first controller When the first request, according to the content information mark and control model generation control letter corresponding with status information in the first request Breath, and control information is distributed to second controller, third controller, the 4th controller and terminating stage controller, energy step by step It is enough to complete the content caching optimal control based on global optimization visual angle, it neatly supports based on user-center and/or is based on net Network optimization centered on different collaborative content cache optimization targets, promoted the collaborative content buffer control method scalability and Flexibility.

In order to achieve the above objectives, the collaborative content buffer control method that second aspect of the present invention embodiment proposes, comprising: When generating the first request, the current first network status information and the first buffer status letter that multiple second controllers report are acquired Breath obtains current control model from preset configuration table, and according to the content information mark and the control in first request Schema creation processed the first control information corresponding with current the first network status information and the first buffer status information, with And the first control information is distributed to corresponding controller, wherein include but is not limited in the first control information: control Device mark, buffer control mode and the content information mark controlled processed；Receive the first control of the first controller distribution Information processed, and according in the first control information the controller identifier and the buffer control mode generate at the same level The second control information that the content caching of multiple second controllers and/or multiple third controllers of junior is controlled, and The second control information is distributed to corresponding second controller and/or third controller；Receive the second controller point Hair second control information, according to it is described second control information in the controller identifier and the buffer control mode generate The third control letter that the content caching of multiple 4th controllers of multiple third controllers at the same level and/or junior is controlled Breath, and third control information is distributed to corresponding third controller and/or the 4th controller；Receive the third control Information processed controls the controller identifier in information, the buffer control mode and described controlled according to the third Content information mark generate to the content cachings of multiple terminating stage controllers of multiple 4th controllers at the same level and/or junior into 4th control information of row control, and the 4th control information is distributed to corresponding 4th controller and/or terminating stage Controller；Corresponding content information is identified according to the content information that is controlled described in the 4th control acquisition of information, and by institute It states content information to be stored in terminal buffers corresponding with the terminating stage controller, and according in the 4th control information The buffer control mode controls the content caching of the corresponding terminal of the terminating stage controller；Based on described at least two The prescription controller of kind generates the combination of different Virtual Controller clusters, and controls the collaborative content cache control system in institute It states and switches in the combination of different Virtual Controller clusters, the collaborative content cache control system is according to first request to not Content caching with the controller in the combination of Virtual Controller cluster is controlled, wherein the different Virtual Controller cluster Prescription controller included in combination is different；Wherein, first controller, the second controller, third control Device, the 4th controller type can be respectively global controller, macro base station grade controller, micro-base station grade controller, with And any one of thin cloud cluster head grade controller.

The collaborative content buffer control method that second aspect of the present invention embodiment proposes, is being received by the first controller When the first request, according to the content information mark and control model generation control letter corresponding with status information in the first request Breath, and control information is distributed to second controller, third controller, the 4th controller and terminating stage controller, energy step by step It is enough to complete the content caching optimal control based on global optimization visual angle, it neatly supports based on user-center and/or is based on net Network optimization centered on different collaborative content cache optimization targets, promoted the collaborative content buffer control method scalability and Flexibility.

In order to achieve the above objectives, the collaborative content buffer control device that third aspect present invention embodiment proposes, feature It is, comprising:

Processor；

Memory for storage processor executable instruction；

Wherein, the processor is configured to:

When generation first is requested, the current first network status information and first that multiple second controllers report is acquired Buffer status information obtains current control model from preset configuration table, and according to the content information mark in first request Know and the control model generates and the current first network status information and the first buffer status information corresponding first Information is controlled, and the first control information is distributed to corresponding controller, wherein includes in the first control information But it is not limited to: controller identifier, buffer control mode and the content information mark controlled；

The first control information of the first controller distribution is received, and according to the control in the first control information Device mark processed and the buffer control mode generate multiple third controllers to multiple second controllers at the same level and/or junior Content caching controlled second control information, and by it is described second control information be distributed to corresponding second controller And/or third controller；

The the second control information for receiving the second controller distribution, according to the control in the second control information Device mark and the buffer control mode are generated to multiple 4th controllers of multiple third controllers at the same level and/or junior The third that content caching is controlled controls information, and third control information is distributed to corresponding third controller And/or the 4th controller；

The third control information is received, the controller identifier, the caching in information are controlled according to the third Control mode and the controlled content information mark generate multiple ends to multiple 4th controllers at the same level and/or junior End grade controller content caching controlled the 4th control information, and by it is described 4th control information be distributed to it is corresponding 4th controller and/or terminating stage controller；

Corresponding content information is identified according to the content information that is controlled described in the 4th control acquisition of information, and by institute It states content information to be stored in terminal buffers corresponding with the terminating stage controller, and according in the 4th control information The buffer control mode controls the content caching of the corresponding terminal of the terminating stage controller；

Prescription controller based on described at least two generates the combination of different Virtual Controller clusters, and controls the association Switch in the combination of the different Virtual Controller cluster with content caching control system, collaborative content buffer control system System controls the content caching of the controller in the combination of different Virtual Controller clusters according to first request, wherein institute State the difference of prescription controller included in the combination of different Virtual Controller clusters；

Wherein, the class of first controller, the second controller, the third controller, the 4th controller Type can be respectively in global controller, macro base station grade controller, micro-base station grade controller and thin cloud cluster head grade controller It is any.

The collaborative content buffer control device that third aspect present invention embodiment proposes, is being received by the first controller When the first request, according to the content information mark and control model generation control letter corresponding with status information in the first request Breath, and control information is distributed to second controller, third controller, the 4th controller and terminating stage controller, energy step by step It is enough to complete the content caching optimal control based on global optimization visual angle, it neatly supports based on user-center and/or is based on net Network optimization centered on different collaborative content cache optimization targets, promoted the collaborative content buffer control method scalability and Flexibility.

In order to achieve the above objectives, the non-transitorycomputer readable storage medium that fourth aspect present invention embodiment proposes, When the instruction in the storage medium is performed by the processor of mobile terminal, so that mobile subscriber terminal is able to carry out one kind Collaborative content buffer control method, which comprises

Corresponding content information is identified according to the content information that is controlled described in the 4th control acquisition of information, and by institute It states content information to be stored in caching corresponding with the terminating stage controller, and according in the 4th control information Buffer control mode controls the content caching of the corresponding terminal of the terminating stage controller；

The non-transitorycomputer readable storage medium that fourth aspect present invention embodiment proposes, is existed by the first controller When receiving the first request, according to the content information mark and control model generation control corresponding with status information in the first request Information processed, and control information is distributed to second controller, third controller, the 4th controller and terminating stage step by step and is controlled Device can complete the content caching optimal control based on global optimization visual angle, neatly support to be based on user-center and/or base Different collaborative content cache optimization targets centered on the network optimization, promote the expansible of the collaborative content buffer control method Property and flexibility.

In order to achieve the above objectives, the computer program product that fifth aspect present invention embodiment proposes, when the computer When instruction processing unit in program product executes, a kind of collaborative content buffer control method is executed, which comprises

Corresponding content information is identified according to the content information that is controlled described in the 4th control acquisition of information, and by institute It states content information to be stored in terminal buffers corresponding with the terminating stage controller, and according to the 4th control information centering The buffer control mode described in the content caching of the corresponding terminal of terminating stage controller controlled；

The computer program product that fifth aspect present invention embodiment proposes is asked by the first controller receiving first When asking, is identified according to the content information in the first request and control model generates control information corresponding with the status information, And control information is distributed to second controller, third controller, the 4th controller and terminating stage controller step by step, it can The content caching optimal control based on global optimization visual angle is completed, neatly support based on user-center and/or is based on network Different collaborative content cache optimization targets centered on optimization, promote the scalability and spirit of the collaborative content buffer control method Activity.

The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.

Detailed description of the invention

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, in which:

Fig. 1 is the structural schematic diagram for the collaborative content cache control system that one embodiment of the invention proposes；

Fig. 2 is the structural schematic diagram for the collaborative content cache control system that another embodiment of the present invention proposes；

Fig. 3 is first network statistic sub-modular structure schematic diagram in the embodiment of the present invention；

Fig. 4 is the first buffer status statistic submodule structural schematic diagram in the embodiment of the present invention；

Fig. 5 is the structural schematic diagram of first service agent sub-module in the embodiment of the present invention；

Fig. 6 is the structural schematic diagram that the first control information generates submodule in the embodiment of the present invention；

Fig. 7 is the generic functional structure schematic diagram of collaborative content cache controller in the embodiment of the present invention；

Fig. 8 is the structural schematic diagram of the controller control submodule in the embodiment of the present invention based on software definition；

Fig. 9 is the function mould of the collaborative content cache controllers at different levels in the embodiment of the present invention based on centerized fusion mode Block composition schematic diagram；

Figure 10 is the function of the collaborative content cache controllers at different levels in the embodiment of the present invention based on hybrid control model Module composition schematic diagram；

Figure 11 is the function of the collaborative content cache controllers at different levels based on full distributed control model in the embodiment of the present invention It can module composition schematic diagram；

Figure 12 is the workflow based on macro base station grade controller optimization micro-base station grade controller number in the embodiment of the present invention Journey schematic diagram；

Figure 13 is the illustrative view of functional configuration of terminating stage collaborative content cache controller in the embodiment of the present invention；

Figure 14 is the flow diagram for the collaborative content buffer control method that one embodiment of the invention proposes；

Figure 15 is the flow diagram for the collaborative content buffer control method that another embodiment of the present invention proposes.

Specific embodiment

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 for explaining only the 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 structural schematic diagram for the collaborative content cache control system that one embodiment of the invention proposes.

Referring to Fig. 1, which includes following at least two prescription controller and Virtual Controller Cluster generation module 600, wherein prescription controller is one of the following: the first controller 100, multiple second controllers 200, multiple Third controller 300, multiple 4th controllers 400 and multiple terminating stage controllers 500.

In an embodiment of the present invention, which includes: the first controller 100, in life When at the first request, the current first network status information and the first buffer status that multiple second controllers 200 report is acquired Information obtains current control model from preset configuration table, and according to the content information mark and control model in the first request The first control information corresponding with current first network status information and the first buffer status information is generated, and first is controlled Information processed is distributed to corresponding controller.

Wherein, the first control information includes but is not limited to: controller identifier, controller cache mark, buffer control mode And the content information mark controlled.

In an embodiment of the present invention, the type of the first controller 100 and second controller 200 can be respectively global control Any one of device, macro base station grade controller, micro-base station grade controller and thin cloud cluster head grade controller processed, the present invention are implemented Example is using the type of the first controller 100 as global controller example, with second controller 200 for macro base station grade controller example.

In an embodiment of the present invention, preset configuration table is preconfigured, stores current controller in preset configuration table Control model, wherein control model includes: first kind control model and the second class control model, and first kind control model is Controller topological structure and the identical control model of mobile radio access network cache node topological structure, the second class control model For the controller topological structure control model different with mobile radio access network cache node topological structure.

Optionally, when the first controller 100 is global controller, first controller 100 is as being in core network Collaborative content cache controller, the collaborative content of offer and completion based on global visual angle that function is responsible for content information are slow Deposit optimal control.First controller 100 when generation first is requested, acquire that multiple second controllers 200 report current the One network state information and the first buffer status information obtain current control model from preset configuration table, and ask according to first Content information mark and control model in asking generate and current first network status information and the first buffer status information pair The the first control information answered, and the first control information is distributed to corresponding controller, for example, step by step by the first control information It is distributed to second controller 200, third controller 300, the 4th controller 400 and terminating stage controller 500.

Wherein, the type of third controller 300 and the 4th controller 400 can be respectively global controller, macro base station grade Any one of controller, micro-base station grade controller and thin cloud cluster head grade controller, the embodiment of the present invention is with third controller 300 type is micro-base station grade controller example, with the 4th controller 200 for thin cloud cluster head grade controller example.

In some embodiments, referring to fig. 2, the first controller 100 includes: first network statistic submodule 110, first Buffer status statistic submodule 120, first service agent sub-module 130, first content information analysis submodule 140, first are controlled Information processed generates submodule 150 and the first distribution submodule 160.Wherein,

First network statistic submodule 110, for acquiring multiple second controllers 200 and/or the control of multiple thirds Device 300 and/or the current network state information of multiple 4th controller, 400 belonging networks are as first network status information.

Optionally, first network statistic submodule 110 is used for multiple second controllers 200 and/or multiple thirds Controller 300 and/or the current network state information of multiple 4th controller, 400 belonging networks are periodically acquired, will The current network state information of acquisition is carried out as first network status information based on global state information statistics, will First network status information is pre-processed, and is exported network state predictive information and information based on first network status information and is converged It is poly- as a result, generates and exports the contextual data based on first network status information according to predictive information and converging information result, general This contextual data is input in first service agent sub-module 130, to decide whether to generate network optimization cache control server Request.

It as an example, is that first network statistic sub-modular structure shows in the embodiment of the present invention referring to Fig. 3, Fig. 3 It is intended to, wherein first network statistic submodule includes: network state information collector unit 31, pretreatment unit 32, data Analytical unit 33, predicting unit 34 and converging information unit 35.Network state information collector unit 31 is for periodically adopting Collect current network state information, and using the current network state information of acquisition as first network status information, by first Network state information is input in pretreatment unit 32 and is pre-processed, and then analyzes pretreated information input to data It is analyzed in unit 33, exports network state predictive information and converging information based on first network status information as a result, root It is predicted that information and converging information result generate and export the contextual data based on first network status information.

First buffer status statistic submodule 120, for acquiring multiple second controllers 200 and/or the control of multiple thirds The current buffer status information of caching is as the first buffer status information belonging to device 300 and/or multiple 4th controllers 400.

Optionally, the first buffer status statistic submodule 120 is used for multiple second controllers 200 and/or multiple thirds The current buffer status information of caching belonging to controller 300 and/or multiple 4th controllers 400 is periodically acquired, will The buffer status information of acquisition then pre-processes the first buffer status information as the first buffer status information, output Predictive information and converging information based on the first buffer status information according to predictive information and converging information result as a result, generate simultaneously The contextual data based on the first buffer status information is exported, this contextual data is input in first service agent sub-module 130, To decide whether to generate the request of network optimization cache control server.

Specifically, the first buffer status information can be analyzed, obtains the dynamic feature of content information, for example, The popularity degree of content, different type user are to the variation characteristic of content information service request, and according to this as the first control letter Breath generates the foundation that submodule 150 generates the first control information.

As an example, referring to fig. 4, Fig. 4 is that the first buffer status statistic submodule structure is shown in the embodiment of the present invention It is intended to, wherein the first buffer status statistic submodule includes: content caching resource state information collector unit 41, pretreatment list Member 42, data analysis unit 43, predicting unit 44 and converging information unit 45.Content caching resource state information is collected single Member 41 is for caching current buffer status to belonging to multiple second controllers, multiple third controllers, multiple 4th controllers Information is periodically acquired, using the buffer status information of acquisition as the first buffer status information, then by the first caching Status information is input in pretreatment unit 42 and is pre-processed, then by pretreated information input to data analysis unit Analyzed in 43, export predictive information based on the first buffer status information and converging information as a result, according to predictive information and Converging information result generates and exports the contextual data based on the first buffer status information.

First service agent sub-module 130 requests triggering to judge first network for receiving user's request, and according to user Status information and the first buffer status information meet whether preset condition generates the first request when meeting preset condition, In, it include: content information mark corresponding with user's request in the first request.

In an embodiment of the present invention, user's request is the service request that user is used to obtain content information in network, is used Family request includes but is not limited to: user terminal identification, content information mark.Wherein, service request can be in from the user Hold information service request, is also possible to the network optimization generated from network resource management and caching resource management optimization aim Cache control server request, with no restriction to this.

In an embodiment of the present invention, preset condition is that the plug-in of global controller is preset, to adjudicate Whether network optimization cache control server request is generated.

Optionally, first service agent sub-module 130 receives user's request, receives first network statistic submodule It is slow that 110 contextual datas based on the generation of first network status information and the first buffer status statistic submodule 120 are based on first The contextual data of status information generation is deposited, and received contextual data is analyzed, judges whether to meet preset condition, that is, sentences It is disconnected whether to generate the request of network optimization cache control server, when judging result is not generate the request of network optimization cache control server When, continue the contextual data for periodically receiving first network statistic submodule 110 and the first buffer status counts submodule The contextual data of block 120, and received contextual data is analyzed；When judging result makes a living into network optimization buffer control clothes When business request, the first request is generated.

It as an example, is the structural representation of first service agent sub-module in the embodiment of the present invention referring to Fig. 5, Fig. 5 Figure, wherein first service agent sub-module includes: that control service request generation unit 51, the content centered on the network optimization take Business request queue 52 and service request scheduling unit 53.Control service request generation unit 51 centered on the network optimization connects Receive the scene number of contextual data and the first buffer status statistic submodule 120 from first network statistic submodule 110 According to, and analyze it, when judging result makes a living into the request of network optimization cache control server, which is input to interior Hold in service request queue 52, content service request queue 52 receives the content of network optimization cache control server request and user Information service request, and by service request scheduling unit 53, it is based on scheduling rule, network optimization cache control server is requested Dispatch service is provided with the content information service request of user.For example, the content information service to user can be completed in real time The optimal control of network optimization cache control server request is completed in the scheduling of request in network flow non-peak period.

First content information analysis submodule 140, for according to the acquisition of content information mark and content in the first request The memory buffers that the corresponding content information of message identification is stored, and the corresponding controller identifier of memory buffers is obtained, and be based on The history buffer data of memory buffers, and the historical geography location information of the terminal of user's request is sent, generate predicted position Information.

Optionally, first content information analysis submodule 140 according to first request in content information identify, obtain with it is interior Hold the memory buffers and corresponding controller identifier that the corresponding content information of message identification is stored, it then, can be based on storage The history buffer data of caching and send user's request user terminal historical geography location information, generate based on the user and The predicted position information of its terminal device.

Optionally, due to the energy consumption problem of system, first content information analysis submodule 140 is in the first controller 100 It is optional.

It is understood that the historical geography position of history buffer data and subscriber terminal equipment based on memory buffers is pre- The controller and its affiliated area that user terminal future may pass through are surveyed, the network that can be then directed toward in predicted position information In controller control caching in, cached in advance for the content information of user's request, it is whole that user can be reduced in this way Hold as mobile and caused by content information failed download, improve the service body that content information of the user during movement obtains It tests.

First control information generates submodule 150, for according to the content information mark and preset configuration in the first request Table generates the first control information corresponding with current first network status information and the first buffer status information.

Wherein, the first control information is used to be directed toward the corresponding controller identifier of memory buffers and/or predicted position information Network in the content caching of controller identifier institute marking of control device controlled.

Specifically, the first control information generates submodule 150 according to content information mark, the preset configuration in the first request Table, first service agent sub-module 130 input user content information service request and come automatic network the network optimization caching control The contextual data that service request processed, first network statistic submodule 110 are generated based on first network status information, Yi Ji The contextual data that one buffer status statistic submodule 120 is generated based on the first buffer status information generates and is based on user-center And/or the collaborative content cache optimization of the cache control server request centered on the network optimization controls information, that is, generates and current First network status information and the first buffer status information it is corresponding first control information, controller corresponding to memory buffers The content caching for the controller that the controller identifier in network that mark and/or predicted position information are directed toward is marked is controlled System.

It as an example, is the structure of the first control information generation submodule in the embodiment of the present invention referring to Fig. 6, Fig. 6 Schematic diagram, wherein it includes: that the conversion of collaborative content cache control system optimization object function is single that the first control information, which generates submodule, Member 61, algoritic module selection decision unit 62, on-line Algorithm unit 63 and off-line algorithm unit 64.Collaborative content caching control System optimization objective function converting unit 61 processed receives the user content information service from first service agent sub-module 130 and asks Summation comes the network optimization cache control server request of automatic network, and the corresponding first network statistic submodule of request 110, the contextual data of the first buffer status statistic submodule 120 output, converts this contextual data and solicited message to and is based on The optimization problem of certain optimisation target, algoritic module select decision unit 62 according to the type of this optimization problem, adopt to the problem Algorithm carries out selection judgement, i.e. selection on-line Algorithm unit 63 or off-line algorithm subelement 64, to obtain and to optimize The corresponding collaborative content cache optimization control result of problem then generates control corresponding with collaborative content cache optimization control result Information processed generates the first control information corresponding with current first network status information and the first buffer status information.

Wherein, on-line Algorithm unit 63 includes mapping ruler set subelement 631 and regular Performance Evaluation subelement 632, Mapping ruler set subelement 631 is for providing the common mapping ruler that can be used for on-line Algorithm, regular Performance Evaluation subelement 632 for assessing the collaborative content cache optimization control result of the algorithm according to performance indicator；Off-line algorithm unit 64 includes imitative True mode subelement 641 and rules self-adaptive subelement 642, simulation model subelement 641 is for storing common system optimization Target and its corresponding collaborative content cache optimization control Simulation result data, read for off-line algorithm, and rules self-adaptive is single Member 642 is used for the corresponding optimization algorithm of Dynamic Matching contextual data.

First distribution submodule 160, for by first control information be distributed to the corresponding controller identifier of memory buffers and/ Or in the controller identifier institute marking of control device in the network that is directed toward of predicted position information, so that the controller marked is according to the One control information and caching control mode control content caching.

Optionally, the first distribution submodule 160 is used to the first control information generating the first control that submodule 150 generates Information is distributed, the control being distributed in the corresponding controller identifier of memory buffers and/or the network of predicted position information direction Device processed identifies in marked controller, so that the controller marked is internal according to the first control information and caching control mode Hold caching to be controlled, the collaborative content cache optimization control based on global optimization visual angle can be completed, neatly support to be based on User-center and/or based on the different collaborative content cache optimization targets centered on the network optimization.

As an example, from based on centered on the network optimization collaborative content cache optimization control angle, first Network state statistic submodule 110, the first buffer status statistic submodule 120 are respectively completed mobile radio access network state letter Breath and the collection based on content caching status information, and located in advance for network state information and buffer status information respectively Reason, wherein referring to fig. 4, be input in buffer status information data analysis unit by pretreated content caching status information 43 are analyzed, and analysis result is output to converging information unit 45, meanwhile, it is analyzed according to buffer status information, provides caching shape The predictive information of state；Referring to Fig. 3, network state information data analysis unit 33 is input to by pretreated network state information In analyzed, analysis result be output to converging information unit 35, meanwhile, according to network resource status information analysis, provide net The predictive information of network state, the caching crossed by respective converging information cell processing and network state information generate current network and The contextual data of buffer status information, and it is output to first service agent sub-module 130, referring to Fig. 5, first service acts on behalf of submodule Control service request generation unit 51 centered on the network optimization in block 130 is according to the contextual data, it is determined whether generates net Network optimizes cache control server request；If generating the request of network optimization cache control server, which will enter into first The content service request queue 52 of service broker's submodule 130, when service request scheduling unit 53 handles the service request, this is asked The first control information generation submodule 150 can be input to the processing of service request by seeking corresponding contextual data then, be used for At the collaborative content cache optimization strategy for corresponding to network optimization cache control server request.

Angle, the content information that mobile subscriber issues are controlled from the collaborative content cache optimization based on user-center Service request can be input to the content service request queue 52 that first service acts on behalf of submodule 130, and first service acts on behalf of submodule 130 The request is input to first content information analysis submodule 140 according to the scheduling rule of request by service request scheduling unit 53 In handled, first content information analysis submodule 140 include information preprocessing unit, based on historical data data analysis Unit, user content information service predicting unit and converging information unit, wherein information preprocessing unit extract in the request with The relevant information of collaborative content buffer control, and it is entered into the data analysis unit based on historical data, it is based on history number According to data analysis unit according to the relevant information of input, analyzed, provided to the pre- of the solicited message in conjunction with historical data Measurement information, meanwhile, for the relevant information of request through converging information cell processing, output corresponds to the contextual data of the solicited message, The contextual data generates the input data of submodule 150 as the first control information, believes for completing corresponding to the user content Cease the collaborative content cache optimization control of service request.

First control information generates submodule 150 and receives the scene number from network optimization content caching control service request According to the contextual data from user content information service request, the collaborative content for completing to be directed to respective request according to the data is slow Deposit optimal control.Specifically, referring to Fig. 6, wherein collaborative content cache control system optimization object function converting unit 61 According to the contextual data of input, the content caching Optimal Control Problem based on optimization object function is converted by the contextual data, and This problem is input in algoritic module selection decision unit 62, algoritic module selection decision unit 62 is asked according to the optimization of input Topic adjudicates this suboptimization using off-line algorithm or on-line Algorithm, if triggering on-line Algorithm unit using on-line Algorithm 63, according to the mapping ruler set subelement 631 of on-line Algorithm unit 63, select a suitable on-line Algorithm；If using Off-line algorithm then triggers off-line algorithm unit 64, the off-line algorithm data and systematicness provided according to simulation model subelement 641 Energy assessment result, selects a most suitable Optimal Decision-making result.By off-line algorithm or on-line Algorithm obtain for upper The optimum results for stating content caching Optimal Control Problem can be output to the first distribution submodule 160, and the first distribution submodule 160 is negative Collaborative content buffer control strategy result is distributed to cache resources and mobile radio access network resource by duty, is finally completed and is based on User-center and/or based on centered on the network optimization collaborative content cache optimization control content-data storage/resetting and Transmission.

It as an example, is the general utility functions of collaborative content cache controller in the embodiment of the present invention referring to Fig. 7, Fig. 7 Structural schematic diagram, collaborative content cache controller can for global controller, macro base station grade controller, micro-base station grade controller, Thin cloud cluster head grade controller and terminating stage controller.When collaborative content cache controller is global controller, overall situation control The not no function with upper level collaborative content cache controller interface sub-module of device；It is connect with next stage collaborative content cache controller Openning module is mainly completed between this global controller and next stage controller (for example, macro base station grade controller) belonging to it Control information exchange；Collaborative content cache controller interface sub-module at the same level completes have same levels with this global controller Control information exchange between global controller；Affiliated resources control interface sub-module is completed this global controller and is controlled with it Internet resources and content caching resource control information exchange；Controller control submodule based on software definition is for completing Control the controller control function between this global controller and controller based on Virtual Controller cluster.

In general, affiliated resources control interface sub-module has been used to cost controller to its belonging network resource and content caching The control of resource, control interaction include but is not limited to this controller from belonging network statistic submodule periodically collecting net Network status information periodically collects buffer status information from affiliated buffer status statistic submodule and this controller passes through The interface controls the cache optimization that affiliated content caching resource carries out and to the optimal control that belonging network resource carries out, specifically Ground says that the optimal control for content caching resource includes but is not limited to the caching insertion mechanism based on content information, such as FIFO, CEE, LCD, Prob (p) etc., and the cache information based on user content remove mechanism, such as FIFO, LRU, random shifting Except mechanism etc.；Optimal control for Internet resources includes but is not limited to the return link and forward pass to mobile radio access network The optimization that link bandwidth resource carries out and the optimization carried out for mobile radio access network resource.

Controller control submodule based on software definition is for completing to control this controller and being based on Virtual Controller cluster Controller control function.The major function of this submodule includes: the first of controller state of the completion based on different control models Beginningization, the state of a control information for monitoring this controller, the controller for updating this controller and its being controlled control operating mode, It stores data information relevant to controller/control model of controller cluster, controller/controller cluster state of a control is carried out Assessment, the reliability management of controller/controller cluster.

As an example, referring to the controller control submodule that Fig. 8, Fig. 8 are in the embodiment of the present invention based on software definition The structural schematic diagram of block, wherein the controller control submodule based on software definition includes: controller operating mode control unit 81, controller state monitoring unit 82, controller state assessment unit 83, controller state information memory cell 84, controller Reliability management unit 85 and director mode control information exchange unit 86.The concrete function of each unit is as follows:

(1) controller operating mode control unit 81: the initialization of the controller state based on different control models is completed Process monitors the association status of this controller and neighbor controller, receives the state of a control information of neighbor controller, update is based on The control topological diagram of the controller cluster of this controller, based on different controller clusters when this controller controller function submodule make Energy status information, this controller are in the network that can be monitored/control when different controller clusters and content caching resource information, And above-mentioned status information is sent to controller state information memory cell 84 and is updated；

(2) controller state monitoring unit 82: the operating state data of collection controller, monitoring controller and its control The state of a control information of controller cluster, and send controller state assessment unit 83 for state of a control property information cycle and carry out Assessment；

(3) controller state assessment unit 83: receiving the information from controller state monitoring unit 82, is based on controller Evaluation index assesses the state of a control of this controller and its relevant controller cluster, if the evaluation index of controller Value meets the required value of setting, then continues the data that periodic evaluation receives；If not meeting the required value of setting, letter is sent It ceases to the reliability management unit 85 of controller, is restored for the abnormality of controller；

(4) controller state information memory cell 84: controller state information primary recipient comes from controller operating mode The controller control model change information of control is simultaneously stored, and the information of storage mainly includes but is not limited to be based on this controller For virtual cluster head grade controller, He Yiben controller is the related control information of each controller cluster of member's controller, including But it is not limited to the association status of this controller and each controller of other direct neighbors, the control topological diagram of controller cluster is believed Breath, based on different controller clusters when the controller function submodule enabled state information of this controller, this controller be in difference The network and content caching resource information that can be monitored/control when controller cluster；

(5) the reliability management unit 85 of controller: it is responsible for being in exception control state in this controller/controller cluster When, it is matched based on reliability management rule, sends relevant recovery operation letter to controller operating mode control unit 81 Breath completes the recovery to controller；

(6) director mode controls information exchange unit 86: complete cost controller is associated with the control between controller Device controls information exchange.

Optionally, the first control information is distributed to corresponding controller by the first controller 100, for example, by the first control Information is distributed to second controller 200, third controller 300, the 4th controller 400 and terminating stage controller 500 step by step, It can complete the content caching optimal control based on global optimization visual angle.

In an embodiment of the present invention, which includes: multiple second controllers 200, is used for The first control information of the first controller 100 distribution is received, and is controlled according to the controller identifier in the first control information with caching Mode processed, which generates, carries out the content caching of multiple third controllers 300 of multiple second controllers 200 at the same level and/or junior Second control information of control, and the second control information is distributed to corresponding second controller 200 and/or third controller 300。

Optionally, when second controller 200 is macro base station grade controller, second controller 200 is mainly completed based on macro The collaborative content cache optimization at base station visual angle controls.Second controller 200 is in the first control for receiving the distribution of the first controller 100 When information, multiple third controllers to multiple second controllers 200 at the same level and/or junior are generated according to the first control information The second control information that 300 content caching is controlled, and the second control information is distributed to corresponding second controller 200 and/or third controller 300.

As an example, referring to Fig. 7, when collaborative content cache controller is macro base station grade controller, macro base station grade Controller and upper level collaborative content cache controller interface sub-module complete this macro base station grade controller and global controller it Between control information exchange；This macro base station grade controller is mainly completed with next stage collaborative content cache controller interface sub-module With the control information exchange between micro-base station grade controller；Collaborative content cache controller interface sub-module at the same level completes Ben Hongji Control information exchange between station level controller and other macro base station grade controllers；Affiliated resources control interface sub-module complete with The control information exchange of its Internet resources controlled and content caching resource；Controller control submodule based on software definition For completing the controller control function between control this macro base station grade controller and controller based on Virtual Controller cluster.

Optionally, it when controller topological structure is identical with mobile radio access network cache node topological structure, that is, controls Molding formula is first kind control model, and in collaborative content cache control system, each prescription controller can be supported to be based on Horizontal collaboration, vertical synergism, horizontal and vertical collaboration collaborative content buffer control mode.

(1) the content caching control mode based on level collaboration between controller refers to by some collaborative content buffer control Device be cluster head controller, initiate collaborative content cache optimization control process, the controller be used as cluster head controller, and with its phase It is cooperateed between adjacent same primary controller, completes the collaborative content buffer control based on certain optimisation target；

(2) the content caching control mode between controller based on vertical synergism refers to by some collaborative content buffer control Device is cluster head controller, initiates collaborative content cache optimization control process, this controller is used as cluster head controller, only adjacent thereto The superior and the subordinate's controller between cooperateed with, complete the collaborative content buffer control based on certain optimisation target；

(3) the content caching control mode between controller based on horizontal and vertical collaboration refers to is delayed by some collaborative content Memory controller is cluster head controller, initiates collaborative content cache optimization control process, this controller is used as cluster head controller, with it It is cooperateed between adjacent junior and controller at the same level, completes the collaborative content buffer control based on some optimization aim.

Above-mentioned three kinds of content caching control modes are described from the Collaborative Control angle between controller, due to control Device processed itself includes several function sub-modules, and the partial function submodule of controller has different enabled states, therefore, in conjunction with The control function submodule of collaborative content cache controller and above-mentioned three kinds of control modes select the difference of control function submodule Enabled mode can form different collaborative content cache control Modes.Typical collaborative content cache control Mode includes: collection Chinese style control model, hybrid control model and full distributed control model.

In an embodiment of the present invention, first kind control model includes: centerized fusion mode.

It optionally, include: centerized fusion mode in first kind control model, and second controller 200 is macro base station grade When controller, second controller 200 uniformly accepts user content information service request all in this macrocell, third controller 300 and the 4th controller 400 itself do not generate the request of the cache control server based on the network optimization, third controller 300 and the The network state information of this controller and buffer status information are periodically reported to the second control respectively by four controllers 400 step by step Device 200 processed generates the cache control server based on the network optimization according to the status information by second controller 200 and requests.

It as an example, is the collaborations at different levels based on centerized fusion mode in the embodiment of the present invention referring to Fig. 9, Fig. 9 The functional module composition schematic diagram of content caching controller.Optionally, in centerized fusion mode, macro base station grade controller root According to the network state information of macrocell, buffer status information and user content information service request, based on different optimization mesh Mark, for example including but be not limited to access that delay is minimum, system energy consumption is minimum, minimize macro base station, micro-base station is used for based on user The return link resource of cache contents information transmission, for content resetting bring particular link transmission band occupation it is minimum, The optimization aims such as content hit rate maximum, the caching based on content information and transmission cost, optimize control to content caching. Micro-base station grade controller and thin cloud cluster head grade controller deactivate its control information generation submodule therefore can only be from macro base First distribution submodule 160 of station level controller obtains the Distribution Results of collaborative content buffer control, and according to this Distribution Results Complete relevant collaborative content buffer control.In general, content information service request corresponding control of the distribution based on user in real time Information, to based on the cache optimization control result centered on the network optimization, each controller can control its cache node, selection The corresponding content information of active cache in network flow non-peak period completes the optimal control of collaborative content caching.

Optionally, referring to fig. 2, when first kind control model includes: centerized fusion mode, second controller 200 is wrapped Include: the second network state statistic submodule 210, the second buffer status statistic submodule 220, second service agent sub-module 230, Second content information analysis submodule 240, second controls information and generates submodule 250 and the second distribution submodule 260.Its In,

Second network state statistic submodule 210, for acquiring when current control model is centerized fusion mode The current network state information of multiple 300 belonging networks of third controller and multiple third controllers 300 report multiple four The current network state information of 400 belonging network of controller is as the second network state information.

For example, the load flow of each communication link can be counted, above-mentioned statistical information is fed back to in core net One controller 100 selects part of links load therein to optimize, as the collaborative content cache controller at core network Complete the foundation of collaborative content cache optimization control.

Second buffer status statistic submodule 220, for acquiring when current control model is centerized fusion mode It caches current buffer status informations belonging to multiple third controllers 300 and multiple third controllers 300 reports multiple four The current buffer status information of caching is as the second buffer status information belonging to controller 400.

For example, can count in the caching for the 4th controller 400 that third controller 300 and third controller 300 report Content information flow, caching bring energy consumption analyze the popularity variation of content information, the business demand of statistics and analysis user Above-mentioned statistic analysis result information, is fed back to the first controller 100 of core net, as in the collaboration at core network by variation Hold the foundation that cache controller completes the collaborative content cache optimization control based on energy consumption.

Second service agent sub-module 230, for receiving user when current control model is centerized fusion mode Request, and when the second network state information and the second buffer status information meet preset condition, according to user's request and first It controls information and generates the second request, wherein the second request includes but is not limited to: content information mark.

Second content information analysis submodule 240, for according to the acquisition of content information mark and content in the second request The memory buffers that the corresponding content information of message identification is stored, and the corresponding controller identifier of memory buffers is obtained, and be based on The history buffer data of memory buffers, and the historical geography location information of the terminal of user's request is sent, generate the pre- of terminal Survey location information.

Optionally, due to the expense and energy consumption problem of system realization, the second content information analysis submodule 240 is in the second control 200 be optional in device processed.

Second control information generates submodule 250, for according to the content information mark and preset configuration in the second request Table generates the second control information corresponding with the second current network state information and the second buffer status information, wherein second The multiple third controls for the multiple second controllers 200 and/or junior at the same level that control information is used to mark controller identifier The content caching of device 300 processed is controlled.

Second distribution submodule 260, for the second control information to be distributed to the net that the predicted position information of terminal is directed toward The multiple third controllers 300 for the multiple second controllers 200 and/or junior at the same level that controller identifier in network is marked In, so that the controller marked controls content caching according to the second control information and caching control mode.

In an embodiment of the present invention, first kind control model further include: hybrid control model.

It as an example, is the associations at different levels based on hybrid control model in the embodiment of the present invention referring to Figure 10, Figure 10 With the functional module composition schematic diagram of content caching controller.

Optionally, when control model is hybrid control model, controllers at different levels be can receive in from the user Hold information service request, and generate the cache control server request based on the network optimization, each controller is based on connecing with mobile wireless Enter the identical topological structure of network cache node topological structure and carry out collaboration optimal control, specifically, cluster head controller is in Controller it is top, it is lower belonging to controller be in the lower layer of its topological hierarchy, be core completion spy using cluster head controller Determine the collaborative content buffer control of optimization aim.Controllers at different levels include that control information generates submodule, can be according to difference Optimization aim complete Collaborative Control and cache management between each controller.Every primary controller periodically gives upper level control Device processed reports this controller belonging network status information and buffer status information, for upper level controller optimization network and collaboration Content caching control.Each prescription controller can be in a manner of support level Collaborative Control, vertical synergism control mode, Yi Jishui Gentle vertical synergism control mode.

Under vertical synergism mode, for example, macro base station grade controller controls micro-base station grade controller, it can complete The content information cache optimization of each micro-base station based on control belonging to macro base station controls, and optimization aim can be between controller Load balancing, controller control caching flow equalization, return link flow equalization etc..

Under horizontal cooperative mode, only support that the collaboration between collaborative content cache controller at the same level, realization are with user Center and/or the collaborative content buffer control centered on the network optimization can pass through the content information service to receive user The controller of request is cluster head controller, is cooperateed between the several base stations at the same level for covering the user simultaneously, in completion Hold Advance data quality control, for example, receiving the use when user issues content information service request to a micro-base station grade controller The controller of the content information service request at family can be triggered to be controlled using itself as the collaborative content cache optimization of cluster head controller, Allow the user by several micro-base stations of itself while access or some micro-base station that can be accessed, directly or indirectly Ground gets the content information of request, can be effectively reduced the access delay that user obtains content information, improve the interior of user Hold Information Service Quality experience.

Under the control mode based on horizontal and vertical collaboration, certain controller may be implemented while being based on its junior and peer The collaborative content buffer control carried out between controller completes customer-centric and/or the collaboration centered on the network optimization Content caching control, for example, can using receive user content information service request controller as cluster head controller, for same When cover the user base station at the same level and its next stage controller carry out the control of collaborative content Advance data quality, user is led to Cross cluster head controller, between the controller of cluster head controller peer perhaps its next stage controller cooperate with directly or Ground connection gets requested content information.

In an embodiment of the present invention, when control model is hybrid control model, the second control information generates submodule Block 250 is also used to: being received the first control information of the first controller 100 distribution, and is received multiple second controllers 200 at the same level Second control information of distribution.

In an embodiment of the present invention, first kind control model further include: full distributed control model.

It as an example, is in the embodiment of the present invention based on the at different levels of full distributed control model referring to Figure 11, Figure 11 The functional module composition schematic diagram of collaborative content cache controller.

Optionally, when control model is full distributed control model, each controller can receive from the user Content information service request generates the request of network optimization cache control server.For example, second controller 200, third controller 300 and the 4th be not based on collaborative content buffer control between controller between controller 400, controllers at different levels according to User content information service request or the request of network optimization cache control server, the affiliated resource based on the control of this controller Network state information and buffer status information independently optimize control to request.

In an embodiment of the present invention, when control model is full distributed control model, the second network state statistics Module 210, for when current control model is full distributed control model, acquisition 200 belonging network of second controller to be worked as Preceding network state information is as the second network state information.

Second buffer status statistic submodule 220, for adopting when current control model is full distributed control model Collect the buffer status information cached belonging to second controller 200 as the second buffer status information.

Second service agent sub-module 230 is cached for receiving user's request, and in the second network state information and second When status information meets preset condition, request to generate for 200 belonging network of second controller and/or affiliated slow according to user The third request that 200 content caching of second controller in depositing is controlled.

In an embodiment of the present invention, which includes: multiple third controllers 300, third Controller 300 is used for when receiving the second control information that second controller 200 is distributed, according to the control in the second control information Device mark and caching control mode generate multiple 4th controllers 400 to multiple third controllers 300 at the same level and/or junior Content caching controlled third control information, and by third control information be distributed to corresponding third controller 300 And/or the 4th controller 400.

Optionally, when third controller 300 is micro-base station grade controller, third controller 300 is mainly completed to be based on being somebody's turn to do The collaborative content cache optimization at micro-base station visual angle controls.Third controller 300 is in the second control for receiving the distribution of second controller 200 When information processed, multiple 4th controls to multiple third controllers 300 at the same level and/or junior are generated according to the second control information The third that the content caching of device 400 is controlled controls information, and third control information is distributed to corresponding third and is controlled Device 300 and/or the 4th controller 400.

Optionally, referring to fig. 2, third controller 300 includes: third network state statistic submodule 310, third caching shape State statistic submodule 320, third service broker submodule 330, third control information generates submodule 340, third distributes submodule Block 350.Wherein,

Third network state statistic submodule 310, for acquiring multiple 4th controllers 400 according to current control model And/or the current network state information of at the same level multiple 300 belonging networks of third controller is as third network state information, and Third network state information is reported into second controller 200.

Third buffer status statistic submodule 320, for acquiring multiple 4th controllers 400 according to current control model And/or current buffer status information is cached belonging to multiple third controllers 300 at the same level as third buffer status information, and Third buffer status information is reported into second controller 200.

Third service broker submodule 330 is cached for receiving user's request, and in third network state information and third When status information meets preset condition, the 4th request is generated, wherein the 4th request includes that user requests and/or for peer Multiple third controllers 300 and/or junior multiple 4th controllers 400 the request that is controlled of content caching.

Third controls information and generates submodule 340, for the second control to be received or do not received according to current control model The second control information that device 200 processed is distributed, and according to third network state information and third buffer status information generate for pair The third control that the content caching of multiple 4th controllers 400 of multiple third controllers 300 and/or junior at the same level is controlled Information processed.

Third distributes submodule 350, for by third control information be distributed at the same level multiple third controllers 300 and/ Or in multiple 4th controllers 400 of junior, so that the controller marked controls information and caching control mode according to third Content caching is controlled.

As an example, referring to Fig. 7, when collaborative content cache controller is micro-base station grade controller, micro-base station grade Controller and upper level collaborative content cache controller interface sub-module complete this micro-base station grade controller and macro base station grade controls Control information exchange between device；The grade control of this micro-base station is mainly completed with next stage collaborative content cache controller interface sub-module Control information exchange between device and thin cloud cluster head grade controller processed；Collaborative content cache controller interface sub-module at the same level is completed Control information exchange between this micro-base station grade controller and other micro-base station grade controllers；Affiliated resources control interface sub-module Complete the control information exchange of this micro-base station grade controller Yu its Internet resources controlled and content caching resource；Based on software The controller control submodule of definition is for completing control this micro-base station grade controller and the controller based on Virtual Controller cluster Between controller control function.

Significantly, since micro-base station deployment covers commonly used in hot zones, and the flow load of hot zones Probably due to the mobility of user terminal and change, therefore, can based on controller to Micro-cell implement dynamic it is excellent Change strategy, for example, closing its content caching controller function when user terminal is less, deactivating micro-base station grade controller Partial function submodule etc. reduces mobile wireless and connects to optimize the utilization of mobile radio access network resource to the maximum extent Enter the energy consumption of network.Therefore, the third control information based on micro-base station grade controller, which generates submodule 340, can have and can activate With deactivation two states, when system is in different control models, third controls the configuration shape that information generates submodule 340 State may be different.When third control information, which generates submodule 340, to be active, micro-base station grade controller possesses third control Information processed generates the function of submodule 340, and otherwise, the function that third controls information generation submodule 340 can be by its upper level Macro base station grade controller complete.

For example, when the third of micro-base station grade controller control information generates submodule 340 and is active, based on micro- The third distribution submodule 350 of base station grade controller, which is received, generates the third control that submodule 340 generates from third control information Information processed, and third control information is distributed to relevant thin cloud cluster head grade controller and terminating stage controller and belonging network And cache resources；When the third of micro-base station grade controller control information, which generates submodule 340, is in deactivation status, micro-base station Grade controller no longer completes its third control information and generates the function of submodule 340, but only receives and control from macro base station grade Second control information of device distribution, and according to the second control information generate at the same level multiple micro-base station grade controllers and/or under The third control information that the content caching of multiple thin cloud cluster head grade controllers of grade is controlled, and third control information is divided It is sent to corresponding micro-base station grade controller and/or thin cloud cluster head grade controller and belonging network and cache resources.

As an example, the number of third controller 300 can be optimized based on second controller 200, for example, with reference to figure 12, Figure 12 be the workflow signal in the embodiment of the present invention based on macro base station grade controller optimization micro-base station grade controller number Figure, wherein network resource status information evaluation index can be the bandwidth of particular link, the handling capacity of macrocell, based on macro small The system total energy consumption in area, the network load flow for caching, customer flow of this macro base station grade controller overlay area etc., it is interior Holding cache resources status information evaluation index can be terminal for caching bring energy consumption, the caching based on content information and biography Defeated cost, content service flow of user etc..Controller number optimization algorithm can choose between the energy consumption of micro-base station, micro-base station Load balancing, the hit rate of content information, access delay etc. evaluation indexes as optimization aim progress micro-base station grade controller The optimization of number.

In an embodiment of the present invention, which includes: multiple 4th controllers 400, is used for When receiving third control information, the controller identifier in information, buffer control mode are controlled according to third and is controlled Content information mark generates the content of multiple terminating stage controllers 500 to multiple 4th controllers 400 at the same level and/or junior The 4th control information controlled is cached, and the 4th control information is distributed to corresponding 4th controller 400 and/or end Hold grade controller 500.

Optionally, when the 4th controller is thin cloud cluster head grade controller, the 4th controller 400 is mainly completed to be based on thin cloud The collaborative content cache optimization at cluster head grade visual angle controls.4th controller 400 is when receiving third control information, according to third Control the content caching for multiple terminating stage controllers 500 that information is generated to multiple 4th controllers 400 at the same level and/or junior The 4th control information controlled, and the 4th control information is distributed to corresponding 4th controller 400 and/or terminating stage Controller 500 and belonging network and cache resources.

In some embodiments, referring to fig. 2, the 4th controller 400 includes: the 4th network state statistic submodule the 410, the 4th Buffer status statistic submodule 420, the 4th service broker's submodule the 430, the 4th control information generate submodule 440, Yi Ji Four distribution submodules 450.

4th network state statistic submodule 410, for multiple fourth controls at the same level according to current control model acquisition Multiple 500 belonging networks of terminating stage controller of 400 belonging network of device processed current network state information and/or junior are current Network state information reports to third controller 300 as the 4th network state information, and by the 4th network state information.

4th buffer status statistic submodule 420, for multiple fourth controls at the same level according to current control model acquisition The current buffer status information of caching belonging to the buffer status information of device 400 processed and/or multiple terminating stage controllers 500 of junior Third controller 300 is reported to as the 4th buffer status information, and by the 4th buffer status information.

4th service broker's submodule 430, for user's request to be received or not received according to current control model, and When the 4th network state information and the 4th buffer status information meet preset condition, the 5th request is generated, wherein the 5th request It is requested including user and/or for the content to multiple 4th controllers 400 and/or multiple terminating stage controllers 500 at the same level Caching optimizes the request of control.

4th control information generates submodule 440, for third control to be received or do not received according to current control model The third that device 300 processed is distributed controls information, and according to the 4th network state information and the 4th buffer status information generate for pair The 4th control letter that the content caching of multiple 4th controllers 400 and/or multiple terminating stage controllers 500 at the same level is controlled Breath.

4th distribution submodule 450, for the 4th control information to be distributed in the controller that controller identifier is marked, So that the controller marked controls content caching.

As an example, referring to Fig. 7, when collaborative content cache controller is thin cloud cluster head grade controller, thin cloud cluster Head grade controller and upper level collaborative content cache controller interface sub-module complete this thin cloud cluster head grade controller and micro-base station Control information exchange between grade controller；This thin cloud is mainly completed with next stage collaborative content cache controller interface sub-module Control information exchange between cluster head grade controller and terminating stage controller；Collaborative content cache controller interface sub-module at the same level Completion and the control information exchange between this thin cloud cluster head grade controller and other thin cloud cluster head grade controllers；Affiliated resources control Interface sub-module completes the control information of this thin cloud cluster head grade controller Yu its Internet resources controlled and content caching resource Interaction；Controller control submodule based on software definition is for completing control this thin cloud cluster head grade controller and based on virtual control Controller control function between other controllers of device cluster processed.

Significantly, since the dynamic of thin cloud networking, the i.e. changeability of thin cloud cluster head itself and its thin cloud member Thin cloud may can be exited/is added at any time, and therefore, distinguishingly, member of single user's terminal as thin cloud can also see At being a thin cloud cluster head.In addition, the energy consumption due to thin cloud cluster head limits, the function of thin cloud cluster head grade controller can be implemented Dynamic optimization strategy, for example, closing its content caching controller function when user does not use content information caching function, going The partial function submodule etc. of content caching controller is activated, to extend its cruise duration to the maximum extent.Therefore, based on micro- The 4th buffer status statistic submodule 420 relevant to content caching control, the 4th service broker in cloud cluster head grade controller The control information generation submodule 440 of module the 430, the 4th and the 4th distribution submodule 450 can have and can activate and deactivate Two states.For example, when the 4th control information of thin cloud cluster head grade controller generates submodule 440 and is active, the Four control information, which generate submodule 440, can be generated the 4th control information, and the 4th control information is passed through the 4th distribution submodule Block 450 is sent to relevant terminating stage controller 500；When the 4th control information, which generates submodule 440, is in deactivation status, This thin cloud cluster head grade controller no longer completes its 4th control information and generates submodule 440, only receives from the micro- of its upper level The third of base station grade controller distribution controls information, and third control information is distributed to controller identifier (for example, controller ID in the controller) marked, so that the controller marked controls content caching.

As an optimal control example, it can also equally be based on micro-base station grade controller optimization thin cloud cluster head grade controller Number, network resource status information evaluation index based on thin cloud grade can be the bandwidth of particular link in thin cloud, thin cloud Total throughout, the total energy consumption of thin cloud, in thin cloud for the network load flow of caching, micro-base station grade controller institute overlay area Number of users etc., content caching resource state information evaluation index can be terminal in thin cloud and be used for the energy consumption of caching, based on interior Hold caching and the transmission cost etc. of information.Controller number optimization algorithm can be by thin cloud customer flow, the total energy consumption, micro- of thin cloud The indexs such as the load balancing between cloud carry out the optimization of thin cloud cluster head grade controller number as optimization aim.

In an embodiment of the present invention, which includes: multiple terminating stage controllers 500, eventually End grade controller 500 is used to identify corresponding content information according to the content information that the 4th control acquisition of information is controlled, and will Content information is stored in terminal buffers corresponding with terminating stage controller 500, and according to the caching control in the 4th control information Mode processed controls the content caching of the corresponding terminal of terminating stage controller 500.

Optionally, in order to support the collaborative content buffer control function of system, be also required to be arranged in user terminal and cooperate with Therefore content caching controls relevant functional module can form terminating stage collaborative content cache controller in the user terminal.

It as an example, is terminating stage collaborative content cache controller in the embodiment of the present invention referring to Figure 13, Figure 13 Illustrative view of functional configuration, the function sub-modules that terminating stage collaborative content cache controller includes have: service broker's submodule, network Statistic submodule, buffer status statistic submodule, content information analysis submodule, control information generate submodule, distribution Submodule, node administration submodule, mode control terminal selection submodule and upper level collaborative content cache controller interface The affiliated resources control interface sub-module of module, this node, the interface sub-module and terminal control unit of this node and other terminals Control submodule.Wherein,

1) service broker's submodule: for generating the control information of submodule according to the control information received, belonging to it Collaborative content cache controller issue user content information service request；

2) network state statistic submodule: for periodically acquiring the network state information of this node, and to network-like State information is analyzed, while the network state information periodically being reported to the upper level collaborative content buffer control belonging to it The control information of device and this node generates submodule, wherein network state information mainly includes this node and mobile wireless access The information such as network and the power consumption of communication resource status, this node between other terminals；

3) buffer status statistic submodule: for periodically acquiring the buffer status information of this node, and to the caching Status information is analyzed, while buffer status property information cycle being reported to the upper level collaborative content caching control belonging to it The control information of device processed and this node generates submodule, wherein buffer status information mainly includes the affiliated content caching of this node The resource state information of unit and its content state information of caching；

4) content information analysis submodule: for store, analyze and report of user propose content information service request when Associated scenario information, by information reporting to the upper level collaborative content cache controller belonging to it, as upper level collaborative content Cache controller completes the foundation of collaborative content cache optimization control；The information of user content information service mainly includes user's The information such as the content information preference of mobility information and mobile Sexual pattern information, geographical location information and user；

5) control information generates submodule: the content information attendant application of this node is into the sending of terminating stage controller When holding information service request, control information generate network state information of the submodule then based on network state statistic submodule and its Result, the buffer status information of buffer status statistic submodule and its analysis are analyzed as a result, first for the content information in this section It is searched in content caching resource belonging to point, if it is possible to find corresponding content information, then be answered to content information service Corresponding content information, if can not find corresponding content information, transmission control information notifying service broker are sent with program Submodule generates user content information service request, and service broker's submodule is by cooperateing with cache controller with upper level content Interface sends the request to upper level collaborative content cache controller belonging to this terminal；

6) distribute submodule: receiving the distribution information of the distribution submodule from upper level collaborative content cache controller, And this terminal content caching and its content information optimization resetting between other terminals are completed according to well-behaved photos and sending messages；

7) node administration submodule: when the operating mode for supporting ad hoc networking is arranged in this terminal, node administration submodule Block is used to complete the networking relevant control between this terminal node and other terminal nodes；

8) mode control terminal selects submodule: whether complete cost user terminal supports the setting of ad hoc networking function to select It selects；

9) with the interface sub-module of upper level collaborative content cache controller: for complete this terminating stage collaborative content caching Content caching between controller and its upper level collaborative content cache controller belonged to controls information exchange；

10) the affiliated resources control interface sub-module of this node: for complete this terminating stage collaborative content cache controller with Control information exchange between its belonging network, content caching resource management submodule；

11) interface sub-module of this node and other terminals: when the operating mode of support ad hoc networking is arranged in this terminal When, the information that the interface sub-module of this node and other terminals is used to complete between this terminal node and other terminal nodes is handed over Mutually；

12) terminal control unit control submodule: when node is resident thin cloud cluster head grade controller and terminating stage controller simultaneously When, terminal control unit control submodule completes the director mode control of this node, i.e. thin cloud grade controller is supported in node selection Or terminating stage controller function；

13) Internet resources belonging to user terminal and collaborative content cache resources include four functional units, main function Can include:

13-1) this node and network-related resources management: refer to the management function for the Internet resources that this node is controlled；

13-2) the network-related resources of this node: it is primarily referred to as the communication link of this node and mobile radio access network Resource and when this node support ad hoc networking when, with the communication link resources between other terminal nodes；

13-3) the content caching resource management of this node: referring to the content caching resource management that this node is controlled, including The content information caching capabilities of content caching unit belonging to this node, content caching resource utilization, in content caching resource Content information and cache optimization administrative mechanism based on content information, the content information for example including this content caching unit Insertion and removal mechanism；

13-4) the content caching resource of this node: refer to the content caching money for the content caching unit that this node is controlled Source.

It is worth noting that, the general user terminal of cruising ability can for terminating stage collaborative content cache controller Above-mentioned function sub-modules are supported with selection, can also only be supported therein for being simplified between above-mentioned function sub-modules The function of some function sub-modules, to adapt to, part terminal function is simple, limitation of low-power consumption；It is stronger to cruising ability User terminal, then can choose while supporting the function of thin cloud cluster head grade controller and terminating stage controller, then this user is whole End can both become thin cloud leader cluster node, can also become general user terminal.

It should be noted that in the collaborative content cache control system based on classification, macro base station grade, micro-base station grade and micro- Cloud cluster head grade controller controls content information insertion and the information removing of the cache resources belonging to it respectively, due to setting for micro-base station Related with the customer flow of its covered hot spot region whether setting, the member of thin cloud also forms dynamic thin cloud due to its mobility Networking, therefore micro-base station grade and thin cloud cluster head grade controller should also control the support of collaborative content buffer control function with it The customer flow and its networking situation in region processed are related, i.e., when the number of users in some thin cloud is less, micro- base belonging to thin cloud Station control can remove the thin cloud of thin cloud cluster head grade controller and its composition；Similarly, the use belonging to the micro-base station grade controller When family and its less content service, macro base station grade controller, which can choose, deactivates this micro-base station grade controller and its caching money Source.Therefore, upper level controller can be according to the network state and caching state information statistics analysis of each affiliated controller report As a result, adaptively optimized to whether its affiliated controller activates, at the same can also optimize the controller controlled it is interior Hold cache resources.

In an embodiment of the present invention, which includes: Virtual Controller cluster generation module 600, the combination of different Virtual Controller clusters is generated for the prescription controller based at least two, and it is slow to control collaborative content It deposits control system to switch in the combination of different Virtual Controller clusters, collaborative content cache control system is according to the first request pair The content caching of controller in different Virtual Controller cluster combinations is controlled, wherein the group of different Virtual Controller clusters Prescription controller included in conjunction is different.

In an embodiment of the present invention, Virtual Controller cluster generation module 600 is also used to: being the second class control in control model When molding formula, the prescription controller based at least two generates the combination of different Virtual Controller clusters.

In an embodiment of the present invention, Virtual Controller cluster generation module 600 includes:

Acquisition submodule 610, for obtaining the corresponding controller of controller identifier for receiving the first request.

Judging submodule 620, in the content caching for judging corresponding controller with the presence or absence of in the first request in Hold the corresponding content information of message identification.

It determines submodule 630, is used for when there is no corresponding content information is identified with content information in the first request, it will Corresponding controller is determined as target controller.

Submodule 640 is configured, for configuring target controller to the virtual cluster head controller of Virtual Controller cluster, and The controller adjacent with target controller is selected to be configured to member's controller of Virtual Controller cluster.

In an embodiment of the present invention, the cluster head controller of Virtual Controller cluster for example can be macro base station grade controller, Or, or micro-base station grade controller, with no restriction to this.

Optionally, when controller topological structure and mobile radio access network cache node topological structure difference, the association A kind of virtual collaborative content cache controller framework can be supported with content caching control system, i.e., when the collaborative content caches When control system is to support based on a certain optimization aim as purpose, it can be temporarily formed with some collaborative content cache controller For cluster head controller, the controller of collaborative content buffer control is carried out therewith with other as member's controller with the cluster head controller A Virtual Controller cluster.

Optionally, the control model of the Virtual Controller cluster generated based on a certain optimization aim belongs to a kind of interim, flat The control model of graduation, specifically, first obtain receive the first request the corresponding controller of controller identifier (for example, Controller ID), there is no content letters corresponding with content information mark in the first request in the content caching belonging to controller When breath, which is determined as target controller, then configures target controller to the virtual cluster head of Virtual Controller cluster Controller selects relevant with the virtual cluster head controller of Virtual Controller cluster according to specific member's controller configuration rule All or part of controller be Virtual Controller cluster member's controller, formed an interim controller cluster.Therefore, empty Quasi- controller cluster can work according to based on centerized fusion mode, i.e., the virtual cluster head controller of Virtual Controller cluster completes control Information systematic function processed, member's controller of Virtual Controller cluster are only completed network state statistics, buffer status statistics, and control The function of information distribution processed.

Specifically, the virtual cluster head controller of Virtual Controller cluster obtains each controller ID adjacent thereto, then empty Quasi- cluster head controller sends Virtual Controller cluster related information to its higher level, peer, subordinate controllers, wherein in related information ID number containing this Virtual Controller cluster, virtual cluster head controller receive the Virtual Controller association from adjacent controller Information answer message sends Virtual Controller cluster invitation message, virtual cluster head control to the adjacent controller for sending response message Device processed invites response message to form Virtual Controller cluster according to the Virtual Controller cluster received.Virtual cluster head controller is to virtual The network state and buffer status of controller cluster are updated, and the state of a control information of update is including but not limited to virtual cluster head control Real-time control relationship topology figure between device processed and member's controller, including the multi-layer controller control based on physical network topology Topological diagram and at present in the control topological diagram of Virtual Controller cluster present on virtual cluster head controller；In addition, the control updated Status information processed further includes the enabled letter corresponding to the relevant each controller of a Virtual Controller cluster to its controlled resource Breath and the operation information allowed, that is, have recorded for the virtual cluster head controller of this Virtual Controller cluster, the control implement body Which resource has been opened to which Virtual Controller cluster (cluster ID), which control function can be completed corresponding to this Virtual Controller cluster Energy.

It is worth noting that, after Virtual Controller cluster completes its optimal control process, since this Virtual Controller cluster will It dismisses, therefore, the control topological diagram and its relevant control status information of the corresponding Virtual Controller cluster will be also deleted.

After the update for completing above-mentioned status information, this Virtual Controller is based on according to the building of updated status information Optimal control optimization aim and its constraint condition, virtual cluster head controller generate the control information based on the optimization aim, Then, control information is distributed to member's controller of this Virtual Controller cluster, member's controller root by virtual cluster head controller The resetting to its affiliated cache resources and content information is completed according to Distribution Results.

Specifically, virtual cluster head controller collects the network and content caching resource status letter that Virtual Controller cluster is controlled The first request is converted an optimization content caching problem by breath, and the control information based on virtual cluster head controller generates son Module provides the optimum results of the problem, this optimum results is distributed to this Virtual Controller cluster by distribution submodule and is controlled Member's controller of system notifies user to obtain the content information if the first request is user content information service request Mode, user obtain information according to content, obtain its requested content information；If the first request is that network optimization content is slow Control service request is deposited, then each member's controller resets cache resources and content information according to Distribution Results.

By generating Virtual Controller cluster when control model is the second class control model, can complete based on some control Device processed is that the collaborative content cache optimization at visual angle controls, and promotes the flexibility and applicability of collaborative content buffer control method.

Optionally, referring to fig. 2, the collaborative content cache control system further include: configuration module 700, for being controlled to first Device 100, multiple second controllers 200, multiple third controllers 300, multiple 4th controllers 400 and multiple terminating stages processed The control model of controller 500 is configured, and will be in the control model write-in preset configuration table postponed.

It is configured, and will be written in preset configuration table with the control model postponed in advance by the mode to controller, Collaborative content cache control system can be made neatly to support based on centralized, full distributed and hybrid-type controller collaboration control Mode processed promotes the scalability and flexibility of collaborative content buffer control method.

It should be noted that being also possible to come since service request can be content information service request from the user Automatic network resource management and the network optimization cache control server for caching resource management optimization aim and generating are requested, for coming from The content information service request of user, processing method are as follows:

User sends content information service request to the controller of its region, and controller receives content from the user Information service request therefrom extracts content information needed for request for content information, and judges this controller institute control area Whether the content information is had in caching, if so, controller and its cache resources that then this controller is controlled based on it, collecting net The content information service request of user is converted an optimization problem by the status information of network and content caching resource, passes through this The control information of controller generates submodule, provides optimum results, is provided by the distribution submodule of this controller to affiliated control Optimum results are distributed in source, and affiliated resource carries out cache optimization resetting according to the content information is directed to, this controller notifies user to obtain The content information for taking it to request；If nothing, judge whether the upload for supporting content information service request, if so, this controller The content information service request that will be unable to meet is uploaded to primary controller thereon, it is in sheet by upper level controller Hold the treatment process of information service request；If it is not, then this controller obtains by the information exchange with other controllers and possesses this The controller and its cache information of content information, then, the controller and its cache resources that this controller is controlled based on it are received The status information for collecting network and content caching resource, carries out the collaborative content cache optimization control process based on the content information.

According to the enabled configuration of the function sub-modules of the control model of controller and controller, can support following three kinds it is right The service mode of user content information service request:

(1) complete or collected works' Chinese style service mode

Under centralized service mode, the content information service request based on user is in the global control in core net It carries out centralization at device or macro base station grade controller to accept, for example, sending the overall situation for the content information service request of user Whether controller, global controller support self-organizing thin cloud collaborative content to cache according to this content information service request, the user The control working method of control model, the state of user and this global controller and its subordinate's controller, passes through user and its The collaborative content cache controller of affiliated thin cloud, Micro-cell or macrocell carries out Collaborative Control, completes to the user The cache optimization of the content information of content information service request controls, and user is notified to obtain content information.

This mode is readily achieved the content information service based on overall situation control and asks from the control angle of network and application Summation content caching optimal control, the Service coverage of content information is wide, still, will cause biggish user's access delay, Influence the Quality of Service Experience of user.

(2) full distributed service mode

Under this mode, the content information service request of user is initially first sent to the collaborative content caching nearest from oneself On controller, i.e., if User support is based on thin cloud self-organizing Cooperative Mode, it is first dealt into thin cloud cluster head grade controller, conversely, Micro-base station grade controller is then first sent a request to, by this collaborative content cache controller according to the content information service request, is looked into Corresponding content information is looked for, the acquisition to the content information of the user content information service request is completed and controls.When based on thin cloud When cluster head grade or micro-base station grade controller can not find corresponding content information in the buffer zone that it is controlled, then this control Whether device processed can support the upload of service request according to itself, choose whether for the content information service request to be uploaded to thereon The collaborative content cache controller of level-one is handled.

This mode handles content information service request marginalisation, makes full use of the edge cache resource of content information, because This, there is this mode lesser user to access delay, still, while will lead to a large amount of duplicate content letters of storage in edge cache Breath, when the content information of user content information service request concentrates on duplicate content information, user content information service is asked It asks with biggish content hit rate；When the content information of user content information service request is more dispersed and enormous amount, Since the spatial cache at edge is limited, it is impossible to store all information, it is thus possible to will lead to user content information service and ask The content hit rate decline asked.

(3) based on the cooperation with service mode of Virtual Controller cluster

Under this mode, the content information service request of user can be sent to macro base station grade, micro-base station grade or thin cloud On cluster head grade controller, which is handled by this controller, there are institutes when this controller controls in caching When the content information of request, the collaboration cache optimization based on the content information is provided as a result, and controlling user's completion to the content The acquisition of information；When the content information is not in the caching of this controller institute control area, then the controller is initiated with this control Device processed is the collaborative content buffer control based on Virtual Controller cluster of cluster head controller, realizes that the user content information service is asked Ask the content caching optimal control of corresponding optimization aim.

Service request, processing method are controlled for the content caching from the network optimization are as follows:

Since collaborative content cache controllers at different levels have network state statistic submodule and caching statistic submodule, And it is possible thereby to the contextual data for current network and buffer status is generated, service broker's submodule can according to this contextual data It to decide whether to generate the cache control server request of the network optimization, i.e., is optimization with network resource management and caching resource management Target executes the control of collaborative content cache optimization.If service broker's submodule of this controller is issued based on the network optimization Content caching controls service request, then this controller is responsible for executing relevant optimization process, i.e. global controller, macro base station grade control Device processed, micro-base station grade controller, that thin cloud cluster head grade controller can issue the network based on this controller institute control area is excellent The content caching control service request at center is turned to, and completes the content caching optimal control based on the controller for core.

In an embodiment of the present invention, collaborative content cache optimization control method is also provided, for example, being based on content flow Initiative information content caching remapping method, the passive content information cache based on content information service request Result of row degree Remapping method, and the collaborative content buffer control method based on user mobility.

Initiative information content caching remapping method based on content information prevalence degree: the popularity for defining certain content information is To user's parameter that request the content information number directly proportional.Collaborative content cache controller periodically collects this control Corresponding content information in user content information service request in device control area, at the appointed time in window, for these Information carries out statistics and analysis, based on the popularity of content information to the content information of active user's content information service request into Top n content information, then the control model based on this controller and the progress network optimization are taken out in row sequence from ranking results Different evaluation index when buffer control, for example, handling capacity, forward pass/passback link bandwidth, system total energy consumption, be based on content Caching and transmission cost of information etc., to centered on this controller Virtual Controller cluster and its network and cache resources carry out Optimization provides the active push content information optimization moment based on this controller and needs to distribute each controller ID of push And its particular content information of corresponding caching and push, and in the specified optimization period (for example, when the peak traffic of network Section), the active for carrying out content information to the caching of Assign Controller is reset.

Passive content information cache remapping method based on content information service request Result: in the time window of setting It is interior, for user to the service request of content information and the feature of user, such as age, schooling, gender, preference etc. into The analysis of row data provides the content information sequence of suitable Assign Controller region and designated user's feature, is based on this content Information and the network optimization target of one's respective area carry out combined optimization, provide content caching optimum results, and be directed to the optimum results Carry out the active cache resetting of content information.

Collaborative content buffer control method based on user mobility: customer-centric, the mobility based on user are gone through The controller and its affiliated area that history information prediction user's future passes through, to the content information of user content information service request It is cached in advance, in this way, it is possible to reduce user is preferably met user and existed due to mobile bring content information failed download Content information during movement obtains service experience.

In the present embodiment, through the first controller when receiving the first request, according to the content information in the first request Mark and control model generate corresponding with status information control information, and will control information be distributed to step by step second controller, Third controller, the 4th controller and terminating stage controller can complete the content caching optimization based on global optimization visual angle Control, is neatly supported based on user-center and/or based on the different collaborative content cache optimization mesh centered on the network optimization Mark, promotes the scalability and flexibility of the collaborative content buffer control method.

Figure 14 is the flow diagram for the collaborative content buffer control method that one embodiment of the invention proposes.

Referring to Figure 14, which includes:

S141: when generation first is requested, the current first network status information that multiple second controllers report is acquired With the first buffer status information, current control model is obtained from preset configuration table, and according to the content information in the first request Mark and control model generate the first control letter corresponding with current first network status information and the first buffer status information Breath, and the first control information is distributed to corresponding controller.

Wherein, include but is not limited in the first control information: controller identifier, buffer control mode and being controlled interior Hold message identification.

In an embodiment of the present invention, the type of the first controller, second controller, third controller, the 4th controller It can be respectively appointing in global controller, macro base station grade controller, micro-base station grade controller and thin cloud cluster head grade controller It is a kind of.

In an embodiment of the present invention, control model includes: first kind control model and the second class control model, wherein First kind control model is controller topological structure and the identical control mould of mobile radio access network cache node topological structure Formula, the second class control model are the control different with mobile radio access network cache node topological structure of controller topological structure Mode.

In an embodiment of the present invention, multiple second controllers and/or multiple third controllers can be acquired, and/or more The current network state information of a fourth stage controller belonging network is as first network status information；Acquire multiple second controls The current buffer status information of caching is as first belonging to device and/or multiple third controllers and/or multiple 4th controllers Buffer status information；User's request is received, and requests triggering to judge first network status information and the first caching shape according to user Whether state information meets preset condition, when meeting preset condition, generates the first request, wherein include: in the first request and use Request corresponding content information mark in family；It is obtained according to the content information mark in the first request corresponding with content information mark The memory buffers that content information is stored, and the corresponding controller identifier of memory buffers is obtained, and the history based on memory buffers It is data cached, and the historical geography location information of the terminal of user's request is sent, generate predicted position information；It is asked according to first Content information mark and preset configuration table in asking generate and current first network status information and the first buffer status information Corresponding first control information, wherein the first control information is used for the corresponding controller identifier of memory buffers and/or prediction bits The content caching for the controller identifier institute marking of control device in network that confidence breath is directed toward is controlled；By the first control information point The controller identifier being sent in the corresponding controller identifier of memory buffers and/or the network of predicted position information direction marks control In device processed, so that the controller marked controls content caching according to the first control information and caching control mode.

In some embodiments, referring to Figure 15, before step S141 further include:

S151: to the first controller, multiple second level controllers, multiple third controllers, multiple 4th controllers, and The control model of multiple terminating stage controllers is configured, and will be in the control model write-in preset configuration table postponed.

It in this step, is configured in advance by the mode to controller, and default by being written with the control model postponed In allocation list, collaborative content cache control system can be made neatly to support based on centralized, full distributed and hybrid-type control Device Collaborative Control mode processed promotes the scalability and flexibility of collaborative content buffer control method.

S142: the first control information of the first controller distribution is received, and according to the controller mark in the first control information Know and cache the content caching for multiple third controllers that control mode is generated to multiple second controllers at the same level and/or junior The the second control information controlled, and the second control information is distributed to corresponding second controller and/or third control Device.

In an embodiment of the present invention, first kind control model includes: centerized fusion mode, is to concentrate in control model When formula control model, the current network state information of multiple third controller belonging networks and multiple third controllers can be acquired The current network state information of the multiple 4th controller belonging networks reported is as the second network state information；Acquire multiple Delay belonging to multiple 4th controllers of caching current buffer status information and multiple third controller reports belonging to three controllers Current buffer status information is deposited as the second buffer status information；Receive user's request, and in the second network state information and When second buffer status information meets preset condition, the second request is generated according to user's request and the first control information, wherein the Two requests include but is not limited to the mark of content information；It is obtained and content information mark according to the content information mark in the second request Know the memory buffers that corresponding content information is stored, and obtain the corresponding controller identifier of memory buffers, and is slow based on storage The history buffer data deposited, and the historical geography location information of the terminal of user's request is sent, generate the predicted position of terminal Information；According in the second request content information mark and preset configuration table generate and the second network state information currently and the The corresponding second control information of two buffer status informations, wherein the second control information is same for being marked to controller identifier The content caching of multiple third controllers of multiple second controllers and/or junior of grade is controlled；Information is controlled by second Multiple second controllers at the same level that the controller identifier being distributed in the network of the predicted position information direction of terminal is marked And/or in multiple third controllers of junior, so that the controller marked is according to the second control information and caching control mode Content caching is controlled.

In an embodiment of the present invention, first kind control model further include: hybrid control model is mixed in control model When box-like control model, the current network state information of multiple third controller belonging networks and the control of multiple thirds can be acquired The current network state information of multiple 4th controller belonging networks that device reports is as the second network state information；It acquires multiple Belonging to multiple 4th controllers of caching current buffer status information and multiple third controller reports belonging to third controller Current buffer status information is cached as the second buffer status information；User's request is received, and in the second network state information When meeting preset condition with the second buffer status information, the second request is generated according to user's request and the first control information, wherein Second request includes but is not limited to: the mark of content information；Content information mark in second request obtains and content information mark Know the memory buffers that corresponding content information is stored, and obtain the corresponding controller identifier of memory buffers, and is slow based on storage The history buffer data deposited, and the historical geography location information of the terminal of user's request is sent, generate the predicted position of terminal Information；The first control information of the first controller distribution is received, and receives the second control of multiple second controllers distribution at the same level Information processed, wherein the multiple second controllers and/or junior at the same level that the second control information is used to mark controller identifier The content cachings of multiple third controllers controlled；The predicted position information that second control information is distributed to terminal is directed toward Network in multiple third controllers of multiple second controllers and/or junior at the same level for being marked of controller identifier in, So that the controller marked controls content caching according to the second control information and caching control mode.

In an embodiment of the present invention, first kind control model further include: full distributed control model is in control model When full distributed control model, this second controller can be acquired when current control model is full distributed control model The current network state information of belonging network is as the second network state information；Acquire the caching cached belonging to this second controller Status information is as the second buffer status information；User's request is received, and in the second network state information and the second buffer status When information meets preset condition, request to generate for in second controller belonging network and/or affiliated caching according to user The third request that second controller content caching is controlled；It is obtained according to the content information mark in the second request and is believed with content Breath identifies the memory buffers that corresponding content information is stored, and obtains the corresponding controller identifier of memory buffers, and is based on depositing The history buffer data of caching are stored up, and send the historical geography location information of the terminal of user's request, generate the prediction of terminal Location information；According to the content information mark and the generation of preset configuration table and the second network state information currently in the second request The second control information corresponding with the second buffer status information, wherein the second control information is used for belonging to this second controller Content caching resource and Internet resources controlled；By second control information be distributed to caching belonging to this second controller and Internet resources.

S143: the second control information of second controller distribution is received, according to the controller identifier in the second control information With caching control mode generate to the content cachings of multiple 4th controllers of multiple third controllers at the same level and/or junior into The third of row control controls information, and third control information is distributed to corresponding third controller and/or the 4th controller.

In an embodiment of the present invention, multiple 4th controllers and/or peer can be acquired according to current control model The current network state information of multiple third controller belonging networks as third network state information, and it is third is network-like State information reporting is to second controller；Multiple the of multiple 4th controllers and/or peer are acquired according to current control model Current buffer status information is cached belonging to three controllers as third buffer status information, and will be in third buffer status information It reports to second controller；It requests according to user is received, and meets in advance in third network state information and third buffer status information If when condition, being requested to generate the 4th request according to user, wherein the 4th request includes that user requests and/or for at the same level The request that the content caching of multiple third controllers and/or multiple 4th controllers of junior is controlled；According to current control Molding formula receives or does not receive the second control information of second controller distribution, and according to third network state information and third Buffer status information is generated for the content caching to multiple third controllers at the same level and/or multiple 4th controllers of junior The third control information controlled；Third control information is distributed to the more of multiple third controllers and/or junior at the same level In a 4th controller, content caching is carried out so that the controller marked controls information and caching control mode according to third Control.

S144: receiving third and control information, controls controller identifier, buffer control mode and the institute in information according to third The content information mark of control generate to the content cachings of multiple terminating stage controllers of at the same level multiple four and/or junior into 4th control information of row control, and the 4th control information is distributed to corresponding 4th controller and/or terminating stage control Device.

In an embodiment of the present invention, it can be acquired according to current control model belonging to multiple 4th controllers at the same level The current network state information of network and/or the current network state information of multiple terminating stage controller belonging networks of junior are made For the 4th network state information, and the 4th network state information is reported into third controller；It is adopted according to current control model Multiple terminating stage controller institutes of the affiliated caching of multiple 4th controllers for collecting at the same level current buffer status information and/or junior Belong to the current buffer status information of caching and reports to third control as the 4th buffer status information, and by the 4th buffer status information Device processed；User's request is received or not received according to current control model, and in the 4th network-like breath and the 4th buffer status When information meets preset condition, the 5th request of generation, wherein the 5th request includes that user requests and/or for the more of peer The request that the content caching of a 4th controller and/or multiple terminating stage controllers is controlled；According to current control model The third control information of third controller distribution is received or does not receive, and according to the 4th network state information and the 4th caching shape The generation of state information is controlled for the content caching to multiple 4th controllers and/or multiple terminating stage controllers at the same level 4th control information；4th control information is distributed in the controller that controller identifier is marked, so that the control marked Device controls content caching.

S145: identifying corresponding content information according to the 4th content information that is controlled of control acquisition of information, and by content Information is stored in terminal buffers corresponding with terminating stage controller, and according to the buffer control mode pair in the 4th control information The content caching of the corresponding terminal of terminating stage controller is controlled.

S146: the prescription controller based at least two generates the combination of different Virtual Controller clusters, and controls collaboration Content caching control system switches in the combination of different Virtual Controller clusters, and collaborative content cache control system is according to first The content caching to the controller in the combination of different Virtual Controller clusters is requested to control, wherein different Virtual Controllers Prescription controller included in the combination of cluster is different.

In an embodiment of the present invention, can control model be the second class control model when, based at least two it is pre- If controller generates the combination of different Virtual Controller clusters.

In an embodiment of the present invention, the available corresponding controller of controller identifier for receiving the first request；Sentence Break in the content caching of corresponding controller with the presence or absence of content information corresponding with content information mark in the first request；Not When in the presence of identifying corresponding content information with content information in the first request, corresponding controller is determined as target controller； Configure target controller to the virtual cluster head controller of Virtual Controller cluster, and by the controller adjacent with target controller It is configured to member's controller of Virtual Controller cluster.

In an embodiment of the present invention, the cluster head controller of Virtual Controller cluster for example can be macro base station grade controller, Alternatively, can be micro-base station grade controller, with no restriction to this.

Optionally, the control model of the Virtual Controller cluster generated based on a certain optimization aim belongs to a kind of interim, flat The control model of graduation, specifically, first obtain receive the first request the corresponding controller of controller identifier (for example, Controller ID), when in the content caching of controller there is no corresponding content information is identified with content information in the first request, The controller is determined as target controller, then controls the virtual cluster head that target controller is configured to Virtual Controller cluster Device, according to specific member's controller configuration rule, selection and the virtual cluster head controller of Virtual Controller cluster are related complete Portion or segment controller are member's controller of Virtual Controller cluster, form an interim controller cluster.Therefore, virtual control Device cluster processed can work according to based on centerized fusion mode, i.e., the virtual cluster head controller of Virtual Controller cluster completes control letter Systematic function is ceased, member's controller of Virtual Controller cluster is only completed network state statistics, buffer status statistics, and control letter Cease the function of distribution.

Specifically, the virtual cluster head controller of Virtual Controller cluster obtains each controller ID adjacent thereto, then empty Quasi- cluster head controller sends Virtual Controller cluster related information to its higher level, peer, subordinate controllers, wherein in related information ID number containing this Virtual Controller cluster, virtual cluster head controller receive the Virtual Controller association from adjacent controller Information answer message sends Virtual Controller cluster invitation message, virtual cluster head control to the adjacent controller for sending response message Device processed invites response message to form Virtual Controller cluster according to the Virtual Controller cluster received.Virtual cluster head controller is to virtual The network state and buffer status of controller cluster are updated, and the state of a control information of update is including but not limited to virtual cluster head control Real-time control relationship topology figure between device processed and member's controller, including the multi-layer controller control based on physical network topology Topological diagram and at present in the control topological diagram of Virtual Controller cluster present on virtual cluster head controller；In addition, the control updated Status information processed further includes the enabled letter corresponding to the relevant each controller of a Virtual Controller cluster to its controlled resource Breath and the operation information allowed, that is, have recorded for the virtual cluster head controller of this Virtual Controller cluster, the control utensil Which resource body has opened to which Virtual Controller cluster (cluster ID), which control can be completed corresponding to this Virtual Controller cluster Function.

Specifically, virtual cluster head controller collects the network and content caching resource status letter that Virtual Controller cluster is controlled The first request is converted an optimization content caching problem by breath, and the control information based on virtual cluster head controller generates son Module provides the optimum results of the problem, this optimum results is distributed to this Virtual Controller cluster by distribution submodule and is controlled Member's controller of system, meanwhile, if the first request is user content information service request, user is notified to obtain content letter The mode of breath, user obtain information according to content, obtain its requested content information；If the first request is the network optimization Content caching controls service request, then member's controller completes the weight to related cache resource and content information according to Distribution Results It sets.

It should be noted that explaining in earlier figures 1- Figure 13 embodiment collaborative content cache control system embodiment The bright collaborative content buffer control method for being also applied for the embodiment, realization principle is similar, and details are not described herein again.

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 indication or suggestion 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 discussed suitable Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang 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 invention can be realized with hardware, software, firmware or their combination.Above-mentioned In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system 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 column technology or their combination are realized: having a logic gates for realizing logic function to data-signal Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..

Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.

It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as Fruit is realized and when sold or used as an independent product in the form of software function module, also can store 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 embodiment or examples 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, modifies, replacement and variant.

Claims

1. a kind of collaborative content cache control system, which is characterized in that the collaborative content cache control system includes default control Device and Virtual Controller cluster generation module processed, wherein the prescription controller includes:

First controller, for acquiring the current first network shape that multiple second controllers report when generation first is requested State information and the first buffer status information obtain current control model from preset configuration table, and according in first request Content information mark and the control model generate with the current first network status information and the first buffer status letter Corresponding first control information is ceased, and the first control information is distributed to corresponding controller, wherein first control Include but is not limited in information processed: controller identifier, buffer control mode and the content information mark controlled；

Multiple second controllers, for receiving the first control information of the first controller distribution, and according to first control The controller identifier and the buffer control mode in information processed are generated to multiple second controllers at the same level and/or junior Multiple third controllers content caching controlled second control information, and by it is described second control information be distributed to Corresponding second controller and/or third controller；

Multiple third controllers, the third controller are used in the second control information for receiving the second controller distribution When, according in the second control information the controller identifier and the buffer control mode generate at the same level multiple the The third that the content caching of three controllers and/or multiple 4th controllers of junior is controlled controls information, and will be described Third control information is distributed to corresponding third controller and/or the 4th controller；

Multiple 4th controllers, for controlling the institute in information according to the third when receiving the third control information Controller identifier, the buffer control mode and the controlled content information mark is stated to generate to multiple 4th controls at the same level The 4th control information that the content caching of device processed and/or multiple terminating stage controllers of junior is controlled, and by described the Four control information are distributed to corresponding 4th controller and/or terminating stage controller；

Multiple terminating stage controllers, what the terminating stage controller was used to be controlled according to the 4th control acquisition of information Content information identifies corresponding content information, and the content information is stored in terminal corresponding with the terminating stage controller In caching, and according to the buffer control mode in the 4th control information to the corresponding terminal of the terminating stage controller Content caching controlled；

The Virtual Controller cluster generation module, for generating the group of different Virtual Controller clusters based on the prescription controller It closes, and controls the collaborative content cache control system and switch in the combination of the different Virtual Controller cluster, the association With content caching control system according to first request to the content caching of the controller in the combination of different Virtual Controller clusters It is controlled, wherein prescription controller included in the combination of the different Virtual Controller cluster is different；

Wherein, first controller, the second controller, the third controller, the 4th controller type can To be respectively any in global controller, macro base station grade controller, micro-base station grade controller and thin cloud cluster head grade controller Kind.

2. collaborative content cache control system as described in claim 1, which is characterized in that the control model includes: first Class control model and the second class control model, wherein the first kind control model is controller topological structure and mobile wireless The identical control model of network-caching node topology is accessed, the second class control model is controller topological structure and shifting The different control model of dynamic Radio Access Network cache node topological structure.

3. collaborative content cache control system as claimed in claim 2, which is characterized in that the Virtual Controller fasciation Cheng Mo Block is also used to:

When the control model is the second class control model, different virtual controllings is generated based on the prescription controller The combination of device cluster.

4. collaborative content cache control system as described in claim 1, which is characterized in that the Virtual Controller fasciation Cheng Mo Block includes:

Acquisition submodule, for obtaining the corresponding controller of controller identifier for receiving first request；

Judging submodule, in the content caching for judging the corresponding controller with the presence or absence of in first request in Hold the corresponding content information of message identification；

It determines submodule, is used for when there is no corresponding content information is identified with content information in first request, by institute It states corresponding controller and is determined as target controller；

Submodule is configured, for configuring the target controller to the virtual cluster head controller of Virtual Controller cluster, and general The controller adjacent with the target controller is configured to member's controller of the Virtual Controller cluster.

5. collaborative content cache control system as described in claim 1, which is characterized in that further include:

Configuration module, the configuration module are used for first controller, the multiple second controller, the multiple third The control model of controller, the multiple 4th controller and the multiple terminating stage controller is configured, and will configuration Control model afterwards is written in the preset configuration table.

6. collaborative content cache control system as described in claim 1, which is characterized in that first controller includes:

First network statistic submodule, for acquiring the multiple second controller and/or the control of the multiple third Device and/or the current network state information of the multiple 4th controller belonging network are as first network status information；

First buffer status statistic submodule, for acquiring the multiple second controller and/or the control of the multiple third The current buffer status information of caching is as the first buffer status information belonging to device and/or the multiple 4th controller；

First service agent sub-module requests triggering to judge first net for receiving user's request, and according to the user Whether network status information and first buffer status information meet preset condition, when meeting the preset condition, generate institute State the first request, wherein include: content information mark corresponding with user request in first request；

First control information generates submodule, raw with preset configuration table for being identified according to the content information in first request At the first control information corresponding with current the first network status information and the first buffer status information, wherein described In the network that first control information is used to be directed toward the corresponding controller identifier of the memory buffers and/or predicted position information The content caching of controller identifier institute marking of control device is controlled；

First distribution submodule, for the first control information to be distributed to the corresponding controller identifier of the memory buffers And/or in the controller identifier institute marking of control device in the network of the predicted position information direction, so that described marked Controller controls content caching according to the first control information and the buffer control mode.

7. collaborative content cache control system as claimed in claim 6, which is characterized in that first controller further include:

First content information analysis submodule, for being obtained and the content according to the content information mark in first request The memory buffers that the corresponding content information of message identification is stored, and the corresponding controller identifier of the memory buffers is obtained, and History buffer data based on the memory buffers, and the historical geography location information of the terminal of user's request is sent, Generate the predicted position information.

8. collaborative content cache control system as claimed in claim 2, which is characterized in that the first kind control model packet Include: centerized fusion mode, the second controller include:

Second network state statistic submodule, for acquiring institute when current control model is the centerized fusion mode State the multiple of the current network state information of multiple third controller belonging networks and the multiple third controller report The current network state information of 4th controller belonging network is as the second network state information；

Second buffer status statistic submodule, for acquiring institute when current control model is the centerized fusion mode State the multiple of the buffer status information and the multiple third controller report that caching is current belonging to multiple third controllers The current buffer status information of caching is as the second buffer status information belonging to 4th controller；

Second service agent sub-module, for receiving user and asking when current control model is the centerized fusion mode It asks, and when second network state information and second buffer status information meet preset condition, according to the user Request and the first control information generate the second request, wherein second request includes but is not limited to: the mark of content information Know；

Second control information generates submodule, raw with preset configuration table for being identified according to the content information in second request At the second control information corresponding with current second network state information and the second buffer status information, wherein described Multiple the of the multiple second controllers and/or junior at the same level that second control information is used to mark the controller identifier The content caching of three controllers is controlled；

Second distribution submodule, for the second control information to be distributed in the network of predicted position information direction of terminal Multiple third controllers of multiple second controllers and/or junior at the same level for being marked of controller identifier in so that described The controller marked controls content caching according to the second control information and the buffer control mode.

9. collaborative content cache control system as claimed in claim 8, which is characterized in that the second controller further include:

Second content information analysis submodule, for being obtained and the content according to the content information mark in second request The memory buffers that the corresponding content information of message identification is stored, and the corresponding controller identifier of the memory buffers is obtained, and History buffer data based on the memory buffers, and the historical geography location information of the terminal of user's request is sent, Generate the predicted position information of the terminal.

10. the collaborative content cache control system as described in claim 2 or 8, which is characterized in that the first kind control model Further include: hybrid control model, when the control model is the hybrid control model,

The second control information generates submodule and is also used to: the first control information of the first controller distribution is received, and Receive the second control information of multiple second controllers distribution at the same level.

11. collaborative content cache control system as claimed in claim 8, which is characterized in that the first kind control model is also It include: full distributed control model, when the control model is the full distributed control model,

The second network state statistic submodule is also used in current control model be the full distributed control model When, the current network state information of the second controller belonging network is acquired as the second network state information；

The second buffer status statistic submodule is also used in current control model be the full distributed control model When, the buffer status information cached belonging to the second controller is acquired as the second buffer status information；

The second service agent sub-module is also used to receive user's request, and in second network state information and described When second buffer status information meets preset condition, request to generate for the affiliated net of the second controller according to the user The third request that second controller content caching in network and/or affiliated caching is controlled.

12. collaborative content cache control system as described in claim 1, which is characterized in that the third controller, comprising:

Third network state statistic submodule, for according to current control model acquire the multiple 4th controller and/or The current network state information of multiple third controller belonging networks at the same level is as the third network state information, and by institute It states third network state information and reports to the second controller；

Third buffer status statistic submodule, for according to current control model acquire the multiple 4th controller and/or The current buffer status information of caching belonging to multiple third controllers at the same level is as third buffer status information, and by described the Three buffer status informations report to the second controller；

Third service broker's submodule, for according to receiving user's request, and in the third network state information and described the When three buffer status informations meet preset condition, requested to generate the 4th request according to the user, wherein the 4th request packet Include user's request and/or for the content caching to multiple third controllers at the same level and/or multiple 4th controllers of junior The request controlled；

Third controls information and generates submodule, for second control to be received or do not received according to the current control model The second control information of device distribution processed, and it is raw according to the third network state information and the third buffer status information At the third controlled for the content caching to multiple third controllers at the same level and/or multiple 4th controllers of junior Control information；

Third distribute submodule, for by the third control information be distributed to the peer multiple third controllers and/or In multiple 4th controllers of junior, so that the controller marked controls information and the buffer control side according to the third Formula controls content caching.

13. collaborative content cache control system as described in claim 1, which is characterized in that the 4th controller, comprising:

4th network state statistic submodule, for according to belonging to current control model acquisition multiple 4th controllers at the same level The current network state information of network and/or the current network state information of multiple terminating stage controller belonging networks of junior are made For the 4th network state information, and the 4th network state information is reported into the third controller；

4th buffer status statistic submodule, for according to belonging to current control model acquisition multiple 4th controllers at the same level The buffer status information that caching is current belonging to multiple terminating stage controllers of current buffer status information and/or junior is cached to make For the 4th buffer status information, and the 4th buffer status information is reported into the third controller；

4th service broker's submodule, for being received according to current control model or not receiving user's request, and described When 4th network state information and the 4th buffer status information meet the preset condition, the 5th request is generated, wherein institute Stating the 5th request includes that user requests and/or for multiple 4th controllers and/or multiple terminating stage controllers at the same level The request that content caching is controlled；

4th control information generates submodule, for the third controller to be received or do not received according to current control model The third of distribution controls information, and according to the 4th network state information and the 4th buffer status information generate for pair The 4th control information that the content caching of multiple 4th controllers and/or multiple terminating stage controllers at the same level is controlled；

4th distribution submodule, for the 4th control information to be distributed to the controller that the controller identifier is marked In, so that the marked controller controls content caching.

14. a kind of collaborative content buffer control method characterized by comprising

When generation first is requested, the current first network status information and the first caching that multiple second controllers report are acquired Status information, obtains current control model from preset configuration table, and according in first request content information mark and The control model generates the first control corresponding with current the first network status information and the first buffer status information Information, and the first control information is distributed to corresponding controller, wherein include but not in the first control information It is limited to: controller identifier, buffer control mode and the content information mark controlled；

The first control information of the first controller distribution is received, and according to the controller in the first control information Mark and the buffer control mode generate in multiple third controllers to multiple second controllers at the same level and/or junior Hold caching controlled second control information, and by it is described second control information be distributed to corresponding second controller and/ Or third controller；

The the second control information for receiving the second controller distribution, according to the controller mark in the second control information Know the content caching that the 4th controller to multiple third controllers at the same level and/or junior is generated with the buffer control mode The third control information controlled, and third control information is distributed to corresponding third controller and/or the 4th Controller；

The third control information is received, the controller identifier, the buffer control in information are controlled according to the third Mode and the controlled content information mark generate multiple terminating stages to multiple 4th controllers at the same level and/or junior The 4th control information that the content caching of controller is controlled, and the 4th control information is distributed to the corresponding 4th Controller and/or terminating stage controller；

The content information controlled according to the 4th control acquisition of information identifies corresponding content information, and will be described interior Hold information to be stored in terminal buffers corresponding with the terminating stage controller, and according in the 4th control information Buffer control mode controls the content caching of the corresponding terminal of the terminating stage controller；

The combination of different Virtual Controller clusters is generated based on prescription controller, and controls the collaborative content cache control system Switch in the combination of the different Virtual Controller cluster, the collaborative content cache control system is according to first request The content caching of controller in the combination of different Virtual Controller clusters is controlled, wherein the different Virtual Controller Prescription controller included in the combination of cluster is different；

15. collaborative content buffer control method as claimed in claim 14, which is characterized in that the control model includes: A kind of control model and the second class control model, wherein the first kind control model is controller topological structure and mobile nothing The identical control model of line access network cache node topological structure, the second class control model be controller topological structure and The different control model of mobile radio access network cache node topological structure.

16. collaborative content buffer control method as claimed in claim 15, which is characterized in that described to be based on the default control Device generates the combination of different Virtual Controller clusters, comprising:

17. collaborative content buffer control method as claimed in claim 14, which is characterized in that raw based on the prescription controller At the combination of different Virtual Controller clusters, and the collaborative content cache control system is controlled in the different virtual controlling Switch in the combination of device cluster, the collaborative content cache control system is according to first request to different Virtual Controller cluster groups The content caching of controller in conjunction is controlled, comprising:

Obtain the corresponding controller of controller identifier for receiving first request；

Judge in the content caching of the corresponding controller with the presence or absence of corresponding with content information mark in first request Content information；

It is when there is no corresponding content information is identified with content information in first request, the corresponding controller is true It is set to target controller；

Configure the target controller to the virtual cluster head controller of Virtual Controller cluster, and will be with the target controller Adjacent controller is configured to member's controller of the Virtual Controller cluster.

18. collaborative content buffer control method as claimed in claim 14, which is characterized in that further include:

To first controller, the multiple second controller, the multiple third controller, the multiple 4th control The control model of device and the multiple terminating stage controller is configured, and will be described pre- with the control model write-in postponed If in allocation list.

19. collaborative content buffer control method as claimed in claim 14, which is characterized in that described to be requested in generation first When, the current first network status information and the first buffer status information that multiple second controllers report is acquired, from pre- establishing Set table and obtain current control model, and according in first request content information mark and the control model generate and The corresponding first control information of current the first network status information and the first buffer status information, and by described first Control information is distributed to corresponding controller, comprising:

Acquire the multiple second controller and/or the multiple third controller and/or the multiple 4th controller institute Belong to the current network state information of network as first network status information；

Acquire the multiple second controller and/or the multiple third controller and/or the multiple 4th controller institute Belong to the buffer status information of caching as the first buffer status information；

User's request is received, and requests triggering to judge the first network status information and first caching according to the user Whether status information meets preset condition, when meeting the preset condition, generates first request, wherein described first It include: content information mark corresponding with user request in request；

According to the content information mark and the generation of preset configuration table and the current first network state in first request Information and the corresponding first control information of the first buffer status information, wherein the first control information is used for the storage Cache the interior of the controller identifier institute marking of control device in the network that corresponding controller identifier and/or predicted position information are directed toward Hold caching to be controlled；

The first control information is distributed to the corresponding controller identifier of the memory buffers and/or the predicted position information In controller identifier institute marking of control device in the network of direction, so that the marked controller is according to first control Information and the buffer control mode control content caching.

20. collaborative content buffer control method as claimed in claim 19, which is characterized in that described to be requested in generation first When, the current first network status information and the first buffer status information that multiple second controllers report is acquired, from pre- establishing Set table and obtain current control model, and according in first request content information mark and the control model generate and The corresponding first control information of current the first network status information and the first buffer status information, and by described first Control information is distributed to corresponding controller, further includes:

Content information corresponding with content information mark is obtained according to the content information mark in first request to be deposited The memory buffers of storage, and the corresponding controller identifier of the memory buffers is obtained, and the history buffer based on the memory buffers Data, and the historical geography location information of the terminal of user's request is sent, generate the predicted position information.

21. collaborative content buffer control method as claimed in claim 15, which is characterized in that the first kind control model packet It includes: centerized fusion mode, the first control information for receiving the first controller distribution, and according to first control The controller identifier and the buffer control mode in information are generated to multiple second controllers at the same level and/or junior The second control information that the content caching of multiple third controllers is controlled, and the second control information is distributed to pair The second controller and/or third controller answered, comprising:

Acquire the current network state information of the multiple third controller belonging network and the multiple third controller report The current network state information of the multiple 4th controller belonging network as the second network state information；

It acquires and caches current buffer status information and the multiple third controller report belonging to the multiple third controller The multiple 4th controller belonging to cache buffer status information as the second buffer status information；

User's request is received, and meets preset condition in second network state information and second buffer status information When, the second request is generated according to user request and the first control information, wherein second request includes but unlimited In the mark of content information；

According to the content information mark and the generation of preset configuration table and the second current network state in second request Information and the corresponding second control information of the second buffer status information, wherein the second control information is used for the control The content caching that device identifies multiple third controllers of marked multiple second controllers and/or junior at the same level is controlled System；

The controller identifier second control information being distributed in the network of the predicted position information direction of terminal is marked Multiple second controllers and/or junior at the same level multiple third controllers in so that the marked controller according to The second control information and the buffer control mode control content caching.

22. collaborative content buffer control method as claimed in claim 21, which is characterized in that described to be requested in generation first When, the current first network status information and the first buffer status information that multiple second controllers report is acquired, from pre- establishing Set table and obtain current control model, and according in first request content information mark and the control model generate and The corresponding first control information of current the first network status information and the first buffer status information, and by described first Control information is distributed to corresponding controller, further includes:

Content information corresponding with content information mark is obtained according to the content information mark in second request to be deposited The memory buffers of storage, and the corresponding controller identifier of the memory buffers is obtained, and the history buffer based on the memory buffers Data, and the historical geography location information of the terminal of user's request is sent, generate the predicted position information of the terminal.

23. collaborative content buffer control method as claimed in claim 21, which is characterized in that the first kind control model is also It include: hybrid control model, when the control model is the hybrid control model,

The content information mark and preset configuration table according in second request generates and the second current network Status information and the corresponding second control information of the second buffer status information, comprising: receive the of first controller distribution One control information, and receive the second control information of multiple second controllers distribution at the same level.

24. the collaborative content buffer control method as described in claim 15 or 21, which is characterized in that the first kind controls mould Formula further include: full distributed control model, when the control model is the full distributed control model,

The multiple third controller belonging network of acquisition current network state information and the multiple third controller The current network state information of the multiple 4th controller belonging network reported is as the second network state information, comprising: When current control model is the full distributed control model, the current network of the second controller belonging network is acquired Status information is as the second network state information；

Current buffer status information and the multiple third controller are cached belonging to the multiple third controller of acquisition The current buffer status information of caching is as the second buffer status information belonging to the multiple 4th controller reported, comprising: When current control model is the full distributed control model, the buffer status cached belonging to the second controller is acquired Information is as the second buffer status information；

The reception user request, and meet default item in second network state information and second buffer status information When part, the second request is generated according to user request and the first control information, comprising: user's request is received, and When second network state information and second buffer status information meet preset condition, please be seek survival according to the user At for being controlled the second controller content caching in the second controller belonging network and/or affiliated caching Three requests.

25. collaborative content buffer control method as claimed in claim 14, which is characterized in that described to receive second control Second control information of device distribution, the controller identifier and the buffer control mode in information are controlled according to described second Generate the third control controlled the content caching of multiple 4th controllers of multiple third controllers at the same level and/or junior Information processed, and third control information is distributed to corresponding third controller and/or the 4th controller, comprising:

Multiple third controller belonging networks of the multiple 4th controller and/or peer are acquired according to current control model Current network state information reports to described second as third network state information, and by the third network state information Controller；

According to current control model acquire the multiple 4th controller and/or peer multiple third controllers belonging to caching Current buffer status information reports to described second as third buffer status information, and by the third buffer status information Controller；

It is requested according to user is received, and meets default item in the third network state information and the third buffer status information It when part, is requested to generate the 4th request according to the user, wherein the 4th request includes that user requests and/or for same The request that the content caching of multiple 4th controllers of multiple third controllers and/or junior of grade is controlled；

The second control information of the second controller distribution is received or not received according to the current control model, And it is generated according to the third network state information and the third buffer status information for controlling multiple thirds at the same level The third that the content caching of device and/or multiple 4th controllers of junior is controlled controls information；

Third control information is distributed to multiple third controllers of the peer and/or multiple 4th controllers of junior In, content caching is controlled in a manner of information and the buffer control by controlling marked controller according to the third System.

26. collaborative content buffer control method as claimed in claim 14, which is characterized in that described to receive the third control Information, according to the third control information in the controller identifier, the buffer control mode and it is described it is controlled in Hold message identification generation to carry out the content caching of multiple terminating stage controllers of multiple 4th controllers at the same level and/or junior 4th control information of control, and the 4th control information is distributed to corresponding 4th controller and/or terminating stage control Device processed, comprising:

According to the current network state information of current control model acquisition multiple 4th controller belonging networks at the same level and/or The current network state information of multiple terminating stage controller belonging networks of junior, and will be described as the 4th network state information 4th network state information reports to the third controller；

Cached according to belonging to current control model acquisition multiple 4th controllers at the same level current buffer status information and/or Current buffer status information is cached belonging to multiple terminating stage controllers of junior as the 4th buffer status information, and will be described 4th buffer status information reports to the third controller；

Receive or do not receive user's request according to current control model, and in the 4th network state information and described the When four buffer status informations meet the preset condition, the 5th request is generated, wherein the 5th request includes that user requests And/or the request controlled for the content caching to multiple 4th controllers and/or multiple terminating stage controllers at the same level；

The third for being received according to current control model or not receiving the third controller distribution controls information, and according to institute The 4th network state information and the 4th buffer status information is stated to generate for multiple 4th controllers at the same level and/or more The 4th control information that the content caching of a terminating stage controller is controlled；

The 4th control information is distributed in the controller that the controller identifier is marked, so that the marked control Device processed controls content caching.