CN101541025B - Wireless communication network system with cognitive function - Google Patents
Wireless communication network system with cognitive function Download PDFInfo
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Abstract
The invention discloses a wireless communication network system with a cognitive function, comprising a service platform and a control platform, a cognitive platform and a cognitive information base; wherein, the service platform and the control platform are in a wireless communication network, and the cognitive platform and the cognitive information base are additionally arranged. The cognitive platform is provided with a cognitive information detecting/transmitting unit, a cognitive interacting unit and a cognitive deciding unit; cognitive flow which is independent of the service flow and the control flow carries cognitive information, studying and reasoning information, resources optimal configuring information and an intelligent deciding information in the cognitive platform; the cognitive flow is transmitted in the each node and the network element entity of a cognitive network. The system can be used for a prior network or a future network, guarantees the compatibility and the flexibility of the network, has high cognitive competence for wireless environment, network environment and customer environment, and autonomously decision control the wireless network according to a set decision criteria based on the cognitive so as to lead the network to develop from a static working mode to a dynamic self-adapting working mode, thus solving the various problems such as rigescentnetwork use mode and low resource utilization efficiency in the prior network.
Description
Technical field
The present invention relates to a kind of cordless communication network of novel structure, exactly, relate to a kind of wireless communication network system, belong to the network configuration technical field of wireless communication system network layer with cognitive function.
Background technology
The broadband wireless business demand of current rapid growth has proposed requirements at the higher level to cordless communication network, but, owing to there is the static management problem of resource in the cordless communication network, make resource distribution very unbalanced, the phenomenon coexistence of shortage of resources and waste, and occupation mode can not dynamically be adjusted with the variation of environment according to demand, thereby it is low with the level of resources utilization to cause network modes to ossify.These problems have become the main bottleneck of restriction cordless communication network development, and are on the rise.In order to address these problems, make network develop into the mode of operation of dynamic self-adapting from static mode of operation, must make network possess height cognitive ability to wireless environment, network environment, user environment, and cordless communication network need carry out autonomous Decision Control with certain weighing criteria on the basis of cognition, and reaches the purpose that adapts to variation by the means of reconstruct.As can be seen, the solution of these problems too busy to get away cognitive, make decisions on one's own control and these three key elements of reconstruct, and the cordless communication network architecture of sealing at present, static state does not possess these key elements and corresponding tenability.
People such as David D.Clark have at first proposed the notion of knowledge platform in the internet.In order to make the network can be according to the situation of self, consciously but not take action artificially, artificial internet such as David D.Clark has proposed a new architecture, and promptly knowledge platform and data platform, management platform are separated, and make network become one three platform structure.
At the radio communication network side face, IEEE 802.22 proposes aware platform is independent of business platform and controlling platform, to realize perceptional function better.And, developed corresponding cordless communication network framework at present, it is described respectively below:
Referring to Fig. 1, introduce the Radio interface protocols universal architecture of traditional a kind of WCDMA that sets up according to principle separate between interlayer and the platform earlier and form.It laterally be provided with two-layer: wireless network layer and transport network layer.All wireless access relevant issues are only relevant with wireless network layer, and transport layer is a wireless access accepted standard transmission technology, and irrelevant with the specific function of wireless access.Protocol architecture vertically be provided with three vertical platforms: controlling platform comprises the application protocol interface of wireless network layer and the signaling bear that transport layer is used to transmit application protocol message; Business platform comprises data stream interface and the Data-carrying that is used for transmitting data stream; The transmission network controlling platform does not comprise the relevant information of any wireless network control platform, but comprises the required ALCAP agreement of business platform Data-carrying (being Access Link Control Application Protocol), and the required signaling bear of ALCAP.The introducing of this platform makes the application protocol of wireless network controlling platform be totally independent of the business platform data bearer technologies.The network of this protocol architecture has good flexibility.
In the standardized process of 802 serial protocols of IEEE, set up a cover physical layer/MAC layer/air-interface standard 802.22 " radio area network WRAN (Wireless Regional Area Networks) " that working group was responsible for is application aware radio (Cognitive Radio) technology, non-registered wireless device can detect and use idle frequency band based on this standard on the TV broadcast band.This agreement is also in the rough draft stage at present, and each participant is also constantly proposing new idea in standardized process.Recently, 802.22 agreement participants have proposed the notion of " cognitive platform (Cognitive Plane) " at the Protocol REference Model PRM in the draft standard (Protocol Reference Model).
Referring to Fig. 2, specifically introduce the 802.22 cognition network structures that cognitive platform forms of on 802 wireless serial protocols model based, having added that propose and form (base station end).
At the base station end, be provided with the wireless module of a plurality of application aware among the cognitive platform CP, mainly contain: be positioned at the spectrum manager (SM) of cognitive platform MAC layer, be positioned at spectrum cognitive functional unit (SSF) and geo-location unit (GL) of cognitive platform physical layer.The layering in cognitive platform of these three cognitive function module collections realizes, and according to the hierarchical relationship of setting, realize the information interaction of SSF/GL and SM by the Service Access Point between protocol layer, cognitive platform CP is then only mutual by the SM module and other platforms that are positioned at the MAC layer.This is consistent for the cognitive platform of user side and base station end group, and just the spectrum manager (SM) with the base station end is changed to the automatic cognitive device of frequency spectrum (SA), and corresponding Service Access Point is changed to SA-SSF, SA-GL.
802.22 the advantage of Protocol REference Model is: cognitive platform is independent of other two platforms, and function is more flexible on dividing; Keep the change that need not of original two platforms, had good protocol architecture inheritance; Make SM can be directly and SSF and GL unit mutual, reduced the expense of cognitive function.
But the essence of the cognitive platform in this 802.22 is equivalent to a kind of implementation of cognitive function just to the improvement of existing protocol model, does not have and business platform or management console position of equal importance.In addition, the composition structure of this cognition platform is also fairly simple, mainly is the integrated and layering realization of unification of cognitive function unit.
Therefore, but be multiple network and epoch of depositing now, how add cognitive platform in existing network and in following network and make network possess cognitive function, just become the technology focus that scientific and technical personnel in the industry pay close attention to.
Summary of the invention
In view of this, the objective of the invention is at the existing wireless network and following wireless network, the unified wireless communication network system with cognitive function of a kind of structure is proposed, be in static management with the resource that solves in the present wireless network, its occupation mode can not dynamically be adjusted with the variation of environment according to demand, cause that network modes ossifys, the low variety of issue of the level of resources utilization, make network possess cognitive function, can develop into the dynamic self-adapting mode of operation from static mode of operation.
In order to achieve the above object, the invention provides a kind of wireless communication network system with cognitive function, this system comprises business platform and the controlling platform in the cordless communication network; It is characterized in that: this system also comprises the cognitive information storehouse of the static state and the semi-static information of cognitive platform and responsible storage networking, described cognitive platform is not stratified and be provided with three kinds of different unit: cognitive information detects and transfer unit, cognitive interactive unit, the cognitive Decision unit; Wherein,
Cognitive information detects with transfer unit and is provided with detection transmission module, is responsible for the cognitive information of detection, filtration and delivery applications layer, realizes the interface function of the cognition stream of cognitive platform and business platform, controlling platform;
Cognitive interactive unit, be used between cognitive information detection and transfer unit and the cognitive Decision unit in the implementation platform and in the cognitive Decision unit cognitive information between each cognitive Decision module alternately, and be the different unified descriptive languages of cognitive information structure; Can realize striding cognitive information mutual of layer, so that create conditions for the combined optimization of striding layer information;
The cognitive Decision unit is provided with a plurality of cognitive Decision modules of finishing difference in functionality, and these cognitive Decision modules are direct interactive information each other, but realizes information interaction by cognitive interactive unit, so that the simple in structure and easy realization of platform; These cognitive Decision modules are responsible for the different behaviors of network being analyzed, and being made final decision-making according to the corresponding cognitive stream that obtains from cognitive interactive unit.
Described cognitive information is the information with cognitive function, comprise frequency spectrum resource, carrier/interface ratio situation, channel capacity and other radio environment information, the user profile of service quality rating, network are fitted the various network information of sex change, network operation cost, network matching degree; Converging of the cognitive information that described cognitive stream is different Information Levels, cognitive being classified as follows of flowing:
Be divided into according to geographic range: the local cognitive stream that other network node of getting along well is mutual, and need the global knowledge stream mutual with other network node;
Be divided into according to time scale: with millisecond with second be the cognitive stream of short-term of time scale, with minute and hour be the cognitive stream in mid-term of time scale, and with sky, week, moon or year be that the long-term cognition of time scale is flowed;
Be divided into according to action scope: the public cognitive stream of the cognitive information that all-network all has, and the privately owned cognitive stream of the cognitive information that just has of particular network just.
This system applies is when the existing communication network, the business platform of described existing communication network and the application layer of controlling platform will be set up cognitive interface, and the cognitive information in the cognitive platform detects with transfer unit and only is provided with a detection transmission module, be responsible for the cognitive information of detection, filtration and business transferring platform and controlling platform application layer, realize the interface function of the cognition stream of cognitive platform and business platform, controlling platform.
This system applies is when the existing communication network, and described cognitive information is as follows at the transmittance process of cognitive platform:
Cognitive information detects with transfer unit and detects cognitive stream by the application layer of business platform and controlling platform earlier, cognitive information is carried in business information and/or the control information, and after the application layer of business platform and controlling platform is collected, be transferred to cognitive platform respectively;
After the cognitive information detection is handled the cognitive stream that obtains with transfer unit, be passed to cognitive interactive unit, by cognitive interactive unit cognition is spread to the cognitive Decision unit, the cognition stream that the cognitive Decision unit converges according to cognitive interactive unit is analyzed the behavior of network and is made a policy again; And in decision process, cognitive platform will communicate with the cognitive information storehouse, knows the static state of network of cognitive information library storage and semi-static information, is used for auxiliary cognitive Decision unit and makes a policy;
Decision information detects with transfer unit by cognitive interactive unit and cognitive information and passes to controlling platform, after this decision information is the decision-making of cognitive Decision unit, issues the cognition stream of local controlling platform; After controlling platform received this cognition that comprises decision information stream, executive control operation was carried out the result of decision by business platform again; When if local cognitive information need be issued other cognitive nodes, also to this cognition be spread and pass business platform with the form of application data, carry this cognitive stream by business platform, finish each cognitive platform peer-to-peer communications.
Described cognitive information or cognitive stream are internodal in Different Cognitive to be the direct communication of the detection transmission intermodule of each the cognitive platform in isomorphism or the heterogeneous network alternately, and in physics realization, this cognitive information or cognitive flow mutual in fact by the layered architecture realization Delamination Transmission of each network user's business platform.
Between the cognitive platform and controlling platform and business platform in the described system, and the cognitive interface between each functional unit comprises in the cognitive platform: the interface between cognitive information detection and transfer unit and the cognitive interactive unit, interface between cognitive interactive unit and the cognitive Decision unit, interface between cognitive platform and the cognitive information storehouse, the interface between cognitive information detection and transfer unit and business platform application layer or the controlling platform application layer; For different networks, the cognitive interface of setting up is different, could realize the compatibility with each existing network like this; And only the reason of setting up cognitive interface in application layer is to realize easily.
This system applies is when the future communications network, each layer of the business platform of described future communications network and the physical layer of controlling platform, data link layer, network layer, transport layer and application layer set up cognitive interface respectively, and the cognitive information in the cognitive platform detects with transfer unit and is provided with a plurality of different detections transmission modules, be used for detecting respectively, the cognitive information of physical layer, data link layer, network layer, transport layer and the application layer of filtration and business transferring platform and controlling platform, realize the interface function of the cognition stream of cognitive platform and business platform, controlling platform.
Cognitive information transmittance process in this system is as follows:
The cognitive information detection is transmitted each layer detection cognitive information of module by business platform and controlling platform with each detection in the transfer unit, after this cognitive information being handled, is passed to cognitive interactive unit again; Cognitive interactive unit converges the cognitive information of each layer becomes cognitive stream, and cognition spread delivers to the cognitive Decision unit, and the cognition stream that the cognitive Decision unit converges according to cognitive interactive unit is analyzed the behavior of network and made a policy; And in decision process, cognitive platform will communicate with the cognitive information storehouse, knows the static state of network of cognitive information library storage and semi-static information, is used for auxiliary cognitive Decision unit and makes a policy;
Then, decision information is via cognitive interactive unit, hierarchical relationship according to cognitive information passes to each detection transmission module respectively with it, detect and transmit each layer that the module group passes to cognitive Decision information controlling platform, after each of controlling platform layer received cognitive Decision information, executive control operation is carried out this result of decision by business platform again; When if local cognitive information need be issued other cognitive nodes, detect to transmit the module group cognitive Decision information is passed to each layer of business platform, carry this cognition by each layer of business platform and flow, finish each cognitive platform peer-to-peer communications.
Described cognitive information or cognitive stream are internodal in Different Cognitive to be that each layer of each business platform in isomorphism or the heterogeneous network carries and finish alternately, promptly in physics realization, this cognitive information or cognitive stream come down to alternately by cognitive information detect with transfer unit in each detect corresponding each layered architecture that transmits module and each network user's business platform and realize what layering equity was transmitted with it.
Cognitive platform in the described system with and functional unit and module between the cognitive interface that is provided with comprise: the interface between cognitive information detection and transfer unit and the cognitive interactive unit, interface between cognitive interactive unit and the cognitive Decision unit, interface between cognitive platform and the cognitive information storehouse, interface C8 between cognitive information detection and transfer unit and the application layer, interface C9 between cognitive information detection and transfer unit and the transport layer, interface C10 between cognitive information detection and transfer unit and the network layer, interface C11 between cognitive information detection and transfer unit and the data link layer, interface C12 between cognitive information detection and transfer unit and the physical layer, wherein C8～C12 is the interface between cognitive information detection and transfer unit and business platform or the controlling platform; So that consistent with each other with the definition of the cognitive interface of existing network, existing network only uses the cognitive interface between cognitive platform and the application layer.
The present invention is a kind of wireless communication network system with cognitive function, its advantage is: by cognitive platform and the business platform and the controlling platform of separating, cognitive stream is independent of Business Stream and control flows, cognitive stream is present in cognitive platform, carrying cognitive information, study and reasoning information, most optimum distribution of resources information and intelligent decision information, in each node of cognition network and network element entity, transmit, realized the various functions that cognition, Decision Control and the adaptation of network change.
System of the present invention can be applicable to the existing wireless communications network and following cordless communication network of various isomorphisms or isomery, and simple in structure, unified, realization easily, can expand specific interface for particular network.Although the structure of the business platform of heterogeneous network and controlling platform is different, the cognitive platform structure in the heterogeneous network remains unified, like this equity of the cognitive information between heterogeneous network.Therefore, system of the present invention can be applied to the existing cordless communication network and following cordless communication network, has guaranteed flexibility of the present invention and compatibility.This network architecture possesses the height cognitive ability to wireless environment, network environment, user environment, and can on the basis of cognition, carry out autonomous Decision Control to wireless network, thereby make network develop into the dynamic self-adapting mode of operation from static mode of operation with the weighing criteria of setting.
Description of drawings
Fig. 1 is that wave point universal architecture of the prior art is formed schematic diagram.
Fig. 2 is that the network configuration of 802.22 agreements of the prior art is formed (base station end) schematic diagram.
Fig. 3 is that wireless communication network system that the present invention has the cognitive function structure when being applied to existing network is formed schematic diagram.
Fig. 4 is the equity of a cognitive information transmission schematic diagram between the two cognitive platforms in the network system shown in Figure 3.
Fig. 5 is the schematic diagram that cognitive information realizes peer-to-peer communications between the heterogeneous networks in the network system shown in Figure 3.
Fig. 6 is that wireless communication network system that the present invention has the cognitive function structure when being applied to future network is formed schematic diagram.
Fig. 7 is the equity of a cognitive information transmission schematic diagram between the two cognitive platforms in the network system shown in Figure 6.
Fig. 8 is the schematic diagram that cognitive information realizes peer-to-peer communications between the heterogeneous networks in the network system shown in Figure 6.
Fig. 9 is the schematic diagram of cognitive information peer-to-peer communications between future network and the existing network.
Figure 10 is the internal element of the cognitive platform in the network system shown in Figure 3 and the interface schematic diagram between other two platforms.
Figure 11 is the internal element of the cognitive platform in the network system shown in Figure 6 and the interface schematic diagram between other two platforms.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Be accompanied by development of wireless communication devices, multiple wireless network occurs in succession, so the epoch that formed multiple network and deposited.How to add cognitive function in existing network is the problem that the present invention at first will solve.From people's such as David D.Clark analysis as can be known, because cognitive information has reasoning, special nature such as of overall importance, must add cognitive platform so in network, add cognitive function.Yet the existing network that exists does not have cognitive platform, if picture adds cognitive platform as shown in Figure 2, certainly will make great change to existing network, and this is to be difficult to realize.
In order to address this problem, the present invention adopts cognitive platform is joined in the existing network, but not stratified to cognitive platform, just it is divided into different unit, and these unit are made up of a plurality of functional modules again.Cognitive information, is transmitted between controlling platform and the cognitive platform at business platform and cognitive platform with the application data form, thus all to expand the interface of application layer at business platform and controlling platform, and need expand specific Applied layer interface for particular network.
Referring to Fig. 3, introduce the wireless communication network system that the present invention has cognitive function, structure when being applied to existing network is formed, and is provided with the static state of responsible storage networking and cognitive information storehouse and three platforms of semi-static information: business platform, controlling platform and cognitive platform.Wherein business platform and controlling platform are on the business platform and controlling platform basis of original cordless communication network, set up cognitive interface with cognitive platform intercommunication in its application layer.And that cognitive platform is a legacy network is unexistent.This cognition platform is not stratified, just is divided into three kinds of different unit: cognitive information detects and transfer unit, cognitive interactive unit, cognitive Decision unit.At this moment, cognitive information wherein detects with transfer unit to be made up of a detection transmission module, is responsible for the cognitive information of detection, filtration and delivery applications layer, realizes the interface function of the cognition stream of cognitive platform and business platform, controlling platform.Cognitive interactive unit be responsible between cognitive information detection and transfer unit and the cognitive Decision unit in the implementation platform and in the cognitive Decision unit cognitive information between each cognitive Decision module alternately, and be the different unified descriptive languages of cognitive information structure; It can also realize striding cognitive information mutual of layer, so that create conditions for the combined optimization of striding layer information.The cognitive Decision unit is provided with a plurality of cognitive Decision modules of finishing difference in functionality, and these cognitive Decision modules are direct interactive information each other, but realizes information interaction by cognitive interactive unit, so that the simple in structure and easy realization of platform; These cognitive Decision modules are responsible for the different behaviors of network being analyzed, and being made final decision-making according to the corresponding cognitive stream that obtains from cognitive interactive unit.
Because the cognitive Decision unit is made up of a plurality of cognitive Decision modules of dividing with difference in functionality, for example, the cognitive Decision module comprises the module to the frequency spectrum resource decision-making, to the module of route decision-making, to the module of chip resource decision, to the module of congestion information decision-making.Consider complexity and factor such as realization property, direct interactive information between these functional modules, the information interaction between them is finished by cognitive interactive unit.Equally, the information interaction between detection of cognitive Decision unit and cognitive information and the transfer unit is also finished by cognitive interactive unit.The unified language that is adopted when adopting unified descriptive language (for example XML) to be meant description Different Cognitive information and the form of presentation of setting are to realize interconnecting between the Different Cognitive wireless network.The introducing of cognitive interactive unit can also realize striding cognitive information mutual of layer, thereby provides condition for the combined optimization of striding layer information.
The present invention proposes the notion of cognitive stream: the converging of the cognitive information of different Information Levels.Every information with cognitive function all is cognitive information.For example, wireless environment (as frequency spectrum resource, carrier/interface ratio situation etc.), user profile (QoS etc.), network information cognitive information such as (as the suitable sex change of network, network operation cost, network matching degrees) all is cognitive stream.And traditional cognitive information includes only radio environment information, can not promote user/network satisfaction degree well.
Being classified as follows of cognitive stream: can be divided into local cognitive stream and global knowledge stream according to geographic range: local cognitive other network node of stream discord is mutual; Global knowledge stream needs with other network node mutual.
Can be divided into the cognitive stream of short-term according to time scale, cognition in mid-term stream, long-term cognitive stream.The cognitive stream of short-term is time scale with millisecond or second; Mid-term cognitive stream with minute or hour be time scale; Long-term cognitive stream is time scale with sky, week, the moon or year.
Can be divided into public cognitive stream and privately owned cognitive stream according to action scope.The former is the cognitive information that all-network all has, and for example power disturbs etc.; The latter is the cognitive information that particular network just has, the subcarrier among the LTE for example, the chip resource among the CDMA etc.
Introduce system applies of the present invention below when existing network, cognitive information is at the transmittance process of cognitive platform:
At first cognitive information detects and the application layer detection cognitive stream of transfer unit by business platform and controlling platform, cognitive information is carried in business information and the control information, and after the application layer of business platform and controlling platform is collected, after being transferred to cognitive platform, form the cognitive stream (stream 1 among the figure, 2,3), the cognitive information that wherein flow 1, the stream 2 local cognitive information that to be respectively cognitive platform obtain from business platform and other cognitive nodes transmits, stream 3 is cognitive information that cognitive platform obtains from controlling platform.
The cognitive information detection is passed to cognitive interactive unit after with transfer unit the cognitive stream that obtains being handled.Cognitive interactive unit spreads cognition to the cognitive Decision unit.The cognition stream that the cognitive Decision unit converges according to cognitive interactive unit is analyzed the behavior of network and is made a policy.In decision process, cognitive platform will communicate with the cognitive information storehouse, knows the static state of network of cognitive information library storage and semi-static information, is used for auxiliary cognitive Decision unit and makes a policy.Then, decision information detects and transfer unit by cognitive interactive unit and cognitive information, passes to controlling platform with the form of application data, i.e. stream among the figure 4: after the decision-making of cognitive Decision unit, issue the cognitive Decision stream of local controlling platform.After controlling platform receives stream 4, executive control operation, and will control informing service platform as a result, thus make business platform carry out the result of decision.When if local cognitive information need be issued other cognitive nodes, cognitive stream also will pass to business platform with the form of application data, carries this cognition stream by business platform.This cognition stream is the stream 5 among the figure.When local cognitive information need be issued other cognitive nodes, just related to the notion of the peer-to-peer communications between the cognitive platform.
Referring to Fig. 4 and Fig. 5, when introducing this wireless communication network system in detail and being applied to existing wireless communications network with cognitive function, the peer-to-peer communications of cognitive platform wherein.Cognitive stream is the direct communication that intermodule is transmitted in the detection in their each autoepistemic platforms alternately between two Different Cognitive nodes, and wireless network A among Fig. 4 and wireless network B both can be homogeneous network, also can be heterogeneous networks.On logical construction, the direct communication that intermodule is transmitted in the mutual just cognition detection of cognitive stream and the detection of transfer unit does not relate to Delamination Transmission.But from physics realization, cognitive flow mutual in fact by the layered architecture of user platform, Fig. 5 understands this point specifically.
Fig. 5 has shown wireless communication network system cognitive the coming down to alternately by the layered architecture of each user platform of flowing between existing different networks or Different Cognitive node that has cognitive function in the present invention, so on physical structure, cognitive stream remains Delamination Transmission.Also have the ability of beared information though it should be noted that controlling platform, its carrying be control information.The amount of information of control information is smaller, and the amount of information of cognitive information is bigger, so cognitive information and be not suitable for being carried on controlling platform is transmitted and should be carried on business platform.Fig. 5 also illustrates, if wireless network A and wireless network B are isomeries, the structure of their business platform and controlling platform all is different so, but the structure of the cognitive platform in the heterogeneous network is unified, the cognitive information of heterogeneous network is reciprocity like this, and this has just created condition for heterogeneous network by unified logic that the intelligence mapping forms network.Specifically, though the structure of the business platform of heterogeneous network and controlling platform is different, the structure of its cognitive platform is identical, so just Business Stream and control flows can be mapped as cognitive stream, thereby it is unified logically to form network.
System of the present invention can be applied to comprise the various cordless communication networks of GSM, GPRS, Personal Handyphone System, WCDMA, TD-SCDMA, CDMA2000, USPA, LTE, WIMAX, LTE-Advanced, IMT-Advanced and 802 series.
Referring to Fig. 6, structure when introducing wireless communication network system that the present invention has cognitive function and being applied to following wireless network is formed: this system comprises the business platform and the controlling platform of future network, and the cognitive information storehouse of the static state of cognitive platform and responsible storage networking and semi-static information, as can be seen from Fig. 6, the difference of the framework when framework when system of the present invention is used for future network and front are used for existing network is: the business platform of future network and the physical layer of controlling platform, data link layer, network layer, transport layer and each layer of application layer are set up cognitive interface respectively, and need expand specific interface for particular network, with the mutual transmission of the cognitive information that realizes corresponding level between each platform and mutual.And the cognitive information in the cognitive platform detects with transfer unit and is provided with a plurality of different detections transmission modules, be used for detecting respectively, the cognitive information of physical layer, data link layer, network layer, transport layer and the application layer of filtration and business transferring platform and controlling platform, realize the interface function of the cognition stream of cognitive platform and business platform, controlling platform.Can carry out information interaction with each layer of business platform, controlling platform though it should be noted that cognitive platform, cognitive platform is not stratified, and reason is that cognitive information has characteristics of overall importance, is not suitable for the cognitive function layering.The network architecture that adds cognitive function at existing network does not adopt the cognitive information layering to detect with mutual reason: if cognitive platform and business platform, each layer of controlling platform design interface all will be made bigger change to existing network, realization is difficult.
On the composition and function of unit, the system architecture of system applies of the present invention when following cordless communication network and the system architecture basically identical that is applied to existing wireless communications network; On the functional module of component units, both differences only are: when being used for future network, cognitive information detects with transfer unit to be made up of a plurality of different detections transmission modules, and different modules detects/transmit the cognitive information of different layers respectively.And when being applied to existing network, cognitive information detects to detect by one with transfer unit and transmits module and forms, this module is responsible for detecting/and the cognitive information of delivery applications layer.And such difference does not influence the framework of network.
The process that cognitive information when the wireless communication network system that the present invention has a cognitive function is applied to following cordless communication network is transmitted is as follows:
At first each module in cognitive information detection and the transfer unit detects cognitive information by each layer of business platform and controlling platform, and the cognitive information detection is passed to cognitive interactive unit after with transmission module group the cognitive information that obtains being handled.Cognitive interactive unit converges the cognitive information of each layer becomes cognitive stream, and cognition is spread to the cognitive Decision unit.The cognition stream that the cognitive Decision unit converges according to cognitive interactive unit is analyzed the behavior of network and is made a policy.In decision process, cognitive platform will communicate with the cognitive information storehouse, knows the static state of network of cognitive information library storage and semi-static information, is used for auxiliary cognitive Decision unit and makes a policy.Then, decision information is through cognitive interactive unit, cognitive interactive unit passes to each detection transmission module according to the hierarchical relationship of cognitive information respectively with it, detect transmission module group cognitive Decision information is passed to each layer of controlling platform, after each layer of controlling platform received this cognitive Decision information, executive control operation.Business platform then can be carried out the result of decision.When if local cognitive information need be issued other cognitive nodes, cognitive information detects with transmitting the module group cognitive Decision information is passed to each layer of business platform, by this cognition stream of each layer of business platform carrying.When local cognitive information need be issued other cognitive nodes, just related to the notion of cognitive platform peer-to-peer communications.
Referring to Fig. 7, when introducing wireless communication network system that the present invention has cognitive function in detail and being applied to following wireless network, the peer-to-peer communications of cognitive platform wherein: cognitive stream mutual in fact also is the direct communication between each interface module between the Different Cognitive node.Wireless network A among the figure and wireless network B both can be homogeneous network, also can be heterogeneous networks.The cognitive information of this node is carried by each layer of business platform, so on logical construction, what cognition was flowed is the Delamination Transmission of each detection transmission intermodule in cognitive information detection and the transfer unit alternately.From physics realization, the mutual of cognitive stream in fact also is by the layered architecture of each user platform (referring to shown in Figure 8).
Fig. 8 has illustrated the realization situation of cognitive information peer-to-peer communications between the future network.From Fig. 8 as seen, cognitive stream can pass to business platform by the interface of each layer, by the cognitive stream of business platform carrying.Between following wireless network the mutual of cognitive stream in fact also is by the layered architecture of user platform, so on physical structure, cognitive stream remains Delamination Transmission.Fig. 8 illustrates that also the structure of the cognitive platform of different future networks also is unified, so no matter be future network or existing network, the cognitive information of heterogeneous network all is reciprocity.
Referring to Fig. 9, the realization situation of cognitive information peer-to-peer communications between future network and the existing network is described.
Wireless network A among the figure is a future network, the business platform of this future network, each layer of controlling platform are all wanted extended interface, cognitive information detects with transfer unit to be made up of a plurality of detections transmission modules, cognitive stream can pass to business platform by the interface of each layer, by the cognitive stream of business platform carrying.Wireless network B is an existing network, and cognitive stream promptly passes to business platform by Applied layer interface just with the form of application data, carries this cognitive stream by business platform.Just realized the peer-to-peer communications of existing network and future network like this by the carrying of business platform.Fig. 9 further specifies, and wireless network A and wireless network B are isomeries, but the structure of their cognitive platform is unified, like this cognitive information of heterogeneous network equity.
For the existing network system, cognitive platform only needs to set up with the application layer of business platform and controlling platform the cognitive interface of intercommunication, so that realize cognitive transmission of flowing and mutual, this is because the cognitive function of existing network only is to realize by application layer.Referring to Figure 10, introduce cognitive platform in the existing network and the cognitive interface between controlling platform and the business platform, and the interface between each functional unit in the cognitive platform: C1 is the interface between physical layer and the data Layer, C2 is the interface between data link layer and the network layer, C3 is the interface between network layer and the transport layer, C4 is the interface between transport layer and the application layer, C5 and C5.5 are the interfaces between cognitive information detection and transfer unit and the cognitive interactive unit, C6 is the interface between cognitive interactive unit and the cognitive Decision unit, C7 is the interface between cognitive platform and the cognitive information storehouse, and C8 is the cognitive interface between cognitive information detection and transfer unit and business platform or the controlling platform.
Existing network is consistent with the definition of the cognitive interface of future network, existing network only uses the cognitive interface between cognitive platform and the application layer, and future network need use the whole cognitive interface between cognitive platform and each layer (from the physical layer to the application layer), thereby cognitive function and the existing network of realizing future network are compatible.
Referring to Figure 11, introduce in the future network cognitive platform with and corresponding each interface: the C1 of functional unit and module be interface between physical layer and the data Layer, C2 is the interface between data link layer and the network layer, C3 is the interface between network layer and the transport layer, C4 is the interface between transport layer and the application layer, (C5.1～C5.5) is the interface between cognitive information detection and transfer unit and the cognitive interactive unit to C5, C6 is the interface between cognitive interactive unit and the cognitive Decision unit, C7 is the interface between cognitive platform and the cognitive information storehouse, C8 is the cognitive interface between cognitive information detection and transfer unit and the application layer, C9 is the cognitive interface between cognitive information detection and transfer unit and the transport layer, C10 is the cognitive interface between cognitive information detection and transfer unit and the network layer, C11 is the cognitive interface between cognitive information detection and transfer unit and the data link layer, C12 is the cognitive interface between cognitive information detection and transfer unit and the physical layer, and wherein C8～C12 is the cognitive interface between cognitive information detection and transfer unit and business platform or the controlling platform.
Claims (10)
1. wireless communication network system with cognitive function, this system comprises business platform and the controlling platform in the cordless communication network; It is characterized in that: this system also comprises the cognitive information storehouse of the static state and the semi-static information of cognitive platform and responsible storage networking, described cognitive platform is not stratified and be provided with three kinds of different unit: cognitive information detects and transfer unit, cognitive interactive unit and cognitive Decision unit; Wherein,
The cognitive information detection is provided with to detect with transfer unit transmits module, is responsible for detection, filters and transmits cognitive information, realizes the interface function of the cognition stream of cognitive platform and business platform, controlling platform;
Cognitive interactive unit, be used between cognitive information detection and transfer unit and the cognitive Decision unit in the implementation platform and in the cognitive Decision unit cognitive information between each cognitive Decision module alternately, and be the different unified descriptive languages of cognitive information structure; Can realize striding cognitive information mutual of layer, so that create conditions for the combined optimization of striding layer information;
The cognitive Decision unit is provided with a plurality of cognitive Decision modules of finishing difference in functionality, and these cognitive Decision modules are direct interactive information each other, but realizes information interaction by cognitive interactive unit, so that the simple in structure and easy realization of platform; These cognitive Decision modules are responsible for the different behaviors of network being analyzed, and being made final decision-making according to the corresponding cognitive stream that obtains from cognitive interactive unit.
2. wireless communication network system according to claim 1, it is characterized in that: described cognitive information is the information with cognitive function, comprise frequency spectrum resource, carrier/interface ratio situation, channel capacity and other radio environment information, the user profile of service quality rating, network are fitted the various network information of sex change, network operation cost, network matching degree; Converging of the cognitive information that described cognitive stream is different Information Levels, cognitive being classified as follows of flowing:
Be divided into according to geographic range: the local cognitive stream that other network node of getting along well is mutual, and need the global knowledge stream mutual with other network node;
Be divided into according to time scale: with millisecond with second be the cognitive stream of short-term of time scale, with minute and hour be the cognitive stream in mid-term of time scale, and with sky, week, moon or year be that the long-term cognition of time scale is flowed;
Be divided into according to action scope: the public cognitive stream of the cognitive information that all-network all has, and the privately owned cognitive stream of the cognitive information that just has of particular network just.
3. wireless communication network system according to claim 1, it is characterized in that: this system applies is when the existing communication network, the business platform of described existing communication network and the application layer of controlling platform will be set up cognitive interface, and the cognitive information in the cognitive platform detects with transfer unit and only is provided with a detection transmission module, be responsible for the cognitive information of detection, filtration and business transferring platform and controlling platform application layer, realize the interface function of the cognition stream of cognitive platform and business platform, controlling platform.
4. wireless communication network system according to claim 3 is characterized in that: this system applies is when the existing communication network, and described cognitive information is as follows at the transmittance process of cognitive platform:
Cognitive information detects with transfer unit and detects cognitive stream by the application layer of business platform and controlling platform earlier, cognitive information is carried in business information and/or the control information, and after the application layer of business platform and controlling platform is collected, be transferred to cognitive platform respectively;
After the cognitive information detection is handled the cognitive stream that obtains with transfer unit, be passed to cognitive interactive unit, by cognitive interactive unit cognition is spread to the cognitive Decision unit, the cognition stream that the cognitive Decision unit converges according to cognitive interactive unit is analyzed the behavior of network and is made a policy again; And in decision process, cognitive platform will communicate with the cognitive information storehouse, knows the static state of network of cognitive information library storage and semi-static information, is used for auxiliary cognitive Decision unit and makes a policy;
Decision information detects with transfer unit by cognitive interactive unit and cognitive information and passes to controlling platform, after this decision information is the decision-making of cognitive Decision unit, issues the cognition stream of local controlling platform; After controlling platform received this cognition that comprises decision information stream, executive control operation was carried out the result of decision by business platform again; When if local cognitive information need be issued other cognitive nodes, also to this cognition be spread and pass business platform with the form of application data, carry this cognitive stream by business platform, finish each cognitive platform peer-to-peer communications.
5. wireless communication network system according to claim 4, it is characterized in that: described cognitive information or cognitive stream are internodal in Different Cognitive to be the direct communication of the detection transmission intermodule of each the cognitive platform in isomorphism or the heterogeneous network alternately, and in physics realization, this cognitive information or cognitive flow mutual in fact by the layered architecture realization Delamination Transmission of each network user's business platform.
6. wireless communication network system according to claim 3, it is characterized in that: between the cognitive platform and controlling platform and business platform in the described system, and the interface between each functional unit comprises in the cognitive platform: the interface between cognitive information detection and transfer unit and the cognitive interactive unit, interface between cognitive interactive unit and the cognitive Decision unit, interface between cognitive platform and the cognitive information storehouse, the cognitive interface between cognitive information detection and transfer unit and business platform application layer or the controlling platform application layer; For different networks, the cognitive interface of setting up is different, so that can realize the compatibility with various existing wireless communications networks; And the reason of only setting up cognitive interface in application layer is to realize easily.
7. wireless communication network system according to claim 1, it is characterized in that: this system applies is when the future communications network, the business platform of described future communications network and the physical layer of controlling platform, data link layer, network layer, each of transport layer and application layer layer set up cognitive interface respectively, and the cognitive information in the cognitive platform detects with transfer unit and is provided with a plurality of different detections transmission modules, be used for detecting respectively, filter physical layer with business transferring platform and controlling platform, data link layer, network layer, the cognitive information of transport layer and application layer realizes cognitive platform and business platform, the interface function of the cognition stream of controlling platform.
8. wireless communication network system according to claim 7 is characterized in that: the transmittance process of the cognitive information in this system is as follows:
The cognitive information detection is transmitted each layer detection cognitive information of module by business platform and controlling platform with each detection in the transfer unit, after this cognitive information being handled, is passed to cognitive interactive unit again; Cognitive interactive unit converges the cognitive information of each layer becomes cognitive stream, and cognition spread delivers to the cognitive Decision unit, and the cognition stream that the cognitive Decision unit converges according to cognitive interactive unit is analyzed the behavior of network and made a policy; And in decision process, cognitive platform will communicate with the cognitive information storehouse, knows the static state of network of cognitive information library storage and semi-static information, is used for auxiliary cognitive Decision unit and makes a policy;
Then, decision information is via cognitive interactive unit, hierarchical relationship according to cognitive information passes to each detection transmission module respectively with it, detect and transmit each layer that the module group passes to cognitive Decision information controlling platform, after each of controlling platform layer received the cognitive information that comprises decision information, executive control operation is carried out this result of decision by business platform again; When if local cognitive information need be issued other cognitive nodes, detect to transmit the module group cognitive Decision information is passed to each layer of business platform, carry this cognition by each layer of business platform and flow, finish each cognitive platform peer-to-peer communications.
9. wireless communication network system according to claim 8, it is characterized in that: described cognitive information or cognitive stream are internodal in Different Cognitive to be that each layer of each business platform in isomorphism or the heterogeneous network carries and finish alternately, promptly in physics realization, this cognitive information or cognitive stream come down to alternately by cognitive information detect with transfer unit in each detect corresponding each layered architecture that transmits module and each network user's business platform and realize what layering equity was transmitted with it.
10. wireless communication network system according to claim 7, it is characterized in that: the cognitive platform in the described system with and functional unit and module between the interface that is provided with comprise: the interface between cognitive information detection and transfer unit and the cognitive interactive unit, interface between cognitive interactive unit and the cognitive Decision unit, interface between cognitive platform and the cognitive information storehouse, cognitive interface C8 between cognitive information detection and transfer unit and the application layer, cognitive interface C9 between cognitive information detection and transfer unit and the transport layer, cognitive interface C10 between cognitive information detection and transfer unit and the network layer, cognitive interface C11 between cognitive information detection and transfer unit and the data link layer, cognitive interface C12 between cognitive information detection and transfer unit and the physical layer, wherein C8～C12 is the cognitive interface between cognitive information detection and transfer unit and business platform or the controlling platform, so that consistent with each other with the definition of the cognitive interface of existing network.
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