CN102098799A - Intelligent cognitive wireless network system for realizing heterogeneous network convergence - Google Patents
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Abstract
The invention discloses an intelligent cognitive wireless network system for realizing heterogeneous network convergence. New function entities with multi-domain active cognition, high-efficiency heterogeneous network resource management, and network or terminal reconstruction are added in the network elements of the existing wireless network system, namely, a cognitive information management module, an intelligent management module and a heterogeneous network convergence management module are added on a network side; a reconstruction management unit, a united wireless resource management & self-optimization unit, a cognitive information/knowledge base and cognitive information management module are added on a terminal side; four interactive interfaces, namely interfaces among operators, interfaces between the network side and the terminal side, interfaces among respective modules and interfaces among units inside the modules are arranged. Modules or units inside the modules realize information exchange via interfaces, and realize corresponding network functions jointly, so that the cognitive capacity, autonomous capacity and adaptive capacity of the network are extended, the intellectualization of network management is promoted, the efficient utilization of heterogeneous network convergence and system frequency spectrum is realized, and overall performance of the network is promoted.
Description
Technical field
The present invention relates to cognitive radio technology, exactly, relate to a kind of intelligentized cognition wireless network system that realizes that heterogeneous network merges, be used to break through the limitation of existing network spectrum utilization, solve the low and isomerism problem of the availability of frequency spectrum that existing network exists, effectively improve the network spectrum utilance, realize the seamless fusion of heterogeneous wireless network, belong to the network configuration technical field of wireless communication system network layer.
Background technology
The low pressure of the existing network availability of frequency spectrum has been alleviated in the appearance of cognitive radio technology.At present, the cognition wireless network system has been carried out certain research.Briefly introduce wherein several typical schemes below:
Referring to Fig. 1, (extended frequency range is the Protocol REference Model that the TV channel in the frequency range of 47MHz～910MHz) proposes for fixing wireless area network (WRAN) works in 54MHz～862MHz VHF/UHF to introduce IEEE 802.22, in order to support cognitive radio technology better, IEEE 802.22 has proposed the notion of cognitive plane (Cognitive Plane), cognitive plane is independent of datum plane and management control plane, realizes MAC layer Dynamic Spectrum Management function by introduce frequency spectrum perception function (SSF) and geographic positioning functionality in the physical layer on cognitive plane.The MAC layer on cognitive plane has defined spectrum management unit (SM), frequency spectrum perception automation cell (SSA) and Security Sublayer 2 (SP).Between each layer module by different Service Access point SAP pass-along message.Wherein, spectrum management module SM is the core of IEEE 802.22, and its major function comprises: preserve usable spectrum information, channel classification and selection, jointly control, the channel status management, for the regional policy of frequency spectrum perception scheduling silent period, accessing database, execution IEEE 802.22 and supervision etc.IEEE 802.22 also provides database service, and the inquiry and the update functions of data is provided for other functional modules.It mainly stores the frequency spectrum occupied information.
IEEE 1900 standards are by IEEE Standards Board issue, by defining a series of system architectures and agreement, so that under multiple wireless access technology environment, reach the purpose of improving whole wireless system integration capability and service quality.Referring to Fig. 2, brief introduction IEEE1900.4 systemic-function framework is formed.
The network side framework has defined following four kinds of entities for characterizing network resource management: the spectrum management OSM of operator, and the RAN metrical information is collected RMC, and Network reconfiguration management NRM and RAN reshuffle control RRC.Wherein, OSM is used to realize the control of operator to the decision-making of NRM dynamic frequency spectrum deployment.RMC collects the RAN contextual information and provides it to NRM.Use in the optimization at network-terminal distributed frequency spectrum, NRM is in charge of CWN and terminal.RRC reshuffles according to the request control RAN of NRM.
The end side framework has defined following three kinds of entities for characterizing the end side resource management: the terminal metrical information is collected TMC, terminal reshuffles management TRM and terminal is reshuffled control TRC.Wherein, TMC collects the terminal contextual information and provides it to TRM.When network-terminal distributed frequency spectrum used optimization, NRM was in charge of terminal.TRC reshuffles according to the request control terminal of TRM.NRM and TRM are the nucleus modules of IEEE1900.4, and wherein NRM has defined six functions: tactful reasoning, and tactful efficiency evaluation, Network reconfiguration decision-making and control, the spectrum allocation may assessment, information extraction, collection, storage and RAN select.TRM has defined three functions: terminal is reshuffled decision-making and control, information extraction, collection, storage, and RAN selects.
ETSI RRS (Reconfigurable Radio System): reshuffling radio system RRS is one of etsi standard direction, is based on the generic concept of SDR and CR technology.RRS can utilize and reshuffle the ability that wireless function and network are adjusted for the dynamic change environment self-adaption, effectively solves incompatibility and the rare characteristic of frequency spectrum between the heterogeneous system, reaches the purpose that improves the availability of frequency spectrum.
The RRS groundwork is to provide the function structure of realizing system spectrum management under the isomerous environment, RRM and network element and terminal self-configuring management, referring to Fig. 3, introduce its function structure signal under single operator scenario (by introducing interface between the same functional module of different operators and can be generalized to multi-operator scenario belonging to).Function structure among the figure mainly comprises four functional modules: Dynamic Spectrum Management DSM, the dynamic self-organization network planning and management DSONPM, joint radio resource management JRRM and configuration control module CCM.Each functional module is not to work alone, and exists between them to be closely connected, and realizes the collaborative work of each module by the mode of introducing interface between the difference in functionality module.
Except providing function structure, because RRS is based on cognitive radio CR (Cognitive Radio) technology, must there be terminal perceived spectral link in system, for time and the energy that reduces the terminal perceived spectral, between base station and terminal, introduced cognitive pilot channel CPC, be used to be reconstructed required software download and cognitive information transmission, solve public download channels and signaling control problem in the reconstruct.
Than IEEE 1900.4, RRS repartitions systemic-function, and has proposed the transmission of CPC support cognitive information, and the relation between IEEE 1900.4 and the ETSI RRS function structure as shown in Figure 4.As can be seen from Figure 4, the RRS groundwork is that function with NRM module among the IEEE 1900.4 is refined as DSM, DSONPM, CCM and JRRM.TRM, TRC and the TMC function of end side are finished by the end side of CCM module and JRRM module simultaneously.
Sum up the present situation of above-mentioned various prior aries, find to exist following shortcoming:
Existing cognition wireless network system does not possess the perception multi-domain environment ability of (mainly comprising user environment, network environment, wireless environment and policy management), lacks the complete multi-domain environment representation system and the database of multi-domain environment cognitive information.For example, IEEE 802.22 does not possess intelligence learning/inference function, and IEEE 1900.4 and ETSI RRS only possess simple learning ability, do not possess the ability of autonomous learning, lacks the unified management that network intelligence is handled.IEEE 802.22 does not possess re-configurability at Television Broadcasting Network.There have been fairly perfect reconstruct management function in EEE 1900.4 and ETSI RRS, but lack certain intelligent.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of intelligent cognition wireless network system that realizes that heterogeneous network merges, this system be IEEE and ETSI to cognition wireless network system research basis on, by introducing new functional module at related network elements and terminal, the cognitive ability of extended network, capacity of will and suitable change ability, promote the intellectuality of network management, reaching efficiently, heterogeneous network merges and the system spectrum utilization.
In order to reach the foregoing invention purpose, the invention provides a kind of intelligent cognition wireless network system that realizes that heterogeneous network merges, it is characterized in that: described system sets up the new functional entity of the reconstruct with initiatively cognitive, the efficient heterogeneous network resource management of multiple domain, network or terminal in the related network elements of prior wireless network system, thereby extended network cognitive ability, capacity of will and suitable change ability, promote the intellectuality of network management, realize that heterogeneous network merges and the efficient utilization of system spectrum and the overall performance of lifting network; The described new functional entity of setting up comprises functional module and interactive interface, and functional module is divided into network side module and end side module according to its network element position of installing, and wherein the network side module comprises:
Cognitive information administration module CIM (Cognitive Information Management), be provided with the cognitive information acquiring unit, cognitive information pretreatment unit and the cognitive information characterization unit that are linked in sequence, be used to finish the obtaining of cognitive information, preliminary treatment and sign, for other module provides basic cognitive information;
The intelligent management module, control core as this network system, form by intelligence learning administrative unit SLM (SmartLearning Management) and cognitive information/knowledge base CIKB (Cognitive Information/KnowledgeBase), be used to other each functional module that the cognitive data message of study/inference mechanism and magnanimity is provided, assist heterogeneous network to merge administration module and flexibly, dynamically adjust the heterogeneous network Managed Solution;
Heterogeneous network merges administration module, is provided with the advanced spectrum management unit ASM (AdvancedSpectrum Management), dynamic network plan management and the self-organizing network cells D NPM﹠amp that are linked in sequence; SON (Dynamic Network Planning Management ﹠amp; Self-Organizing Network) and Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing unit JRRM﹠amp; SO (Joint Radio Resource Management ﹠amp; And reconstruct administrative unit RM (Reconfiguration Management) Self-Optimization); Be used under the assistance and control of intelligent management module, finishing to a plurality of different Access Networks and heterogeneous network spectrum management, Dynamic Programming and the self-organizing of depositing and joint radio resource management function;
The end side module is used for each equipment control network of assisted network side, is provided with the reconstruct administrative unit RM, the Lian Hewuxianziyuanguanli ﹠amp that are linked in sequence; Self-optimizing unit JRRM﹠amp; SO, cognitive information/knowledge base CIKB and cognitive information administration module CIM;
Interactive interface is provided with four kinds: the interactive interface between operator between interactive interface, network side and end side interactive interface, each intermodule interactive interface and each unit of inside modules, information interaction is realized by interactive interface between each module or each unit in the module, finishes corresponding network function jointly.
The innovative technology key of network system of the present invention is: the related network elements of this network system has been set up following three modules: realize that cognitive information is obtained, the cognitive information administration module of the unified management of preliminary treatment, sign and transmission, this is the innovation that system of the present invention compares with IEEE 802.22, IEEE 1900.4 and ETSI RRS system.Cognitive information/the knowledge base of storage networking cognitive information, this cognitive information/knowledge base are that this system realizes intelligentized important means, for the functional module with intelligence learning/reasoning provides knowledge and case; Simultaneously, it also provides multiple domain cognitive information vector for other functional modules.Promote the intelligence learning administration module of cognition wireless network system intelligence, the proposition of this module has realized the intellectuality of function structure, finishes the study/reasoning to the general character cognitive information, and guides other functional module to finish intelligent decision.
The present invention compared with prior art, the advantage that has is: the present invention is by introducing the cognitive information administration module in network system, expanded the scope of network cognitive environment, the multi-domain environment representation system of complete, standard, science can be provided, unite with the autonomous learning function of intelligent management module that to finish network initiatively cognitive, improve the cognitive ability of network.The intelligent management module that the present invention introduces in network system has realized the unified management to the network cognitive intelligent processing method, is used for modules such as assisted network spectrum management, Dynamic Programming, resource management and finishes and make decisions on one's own, and improves the ability of making decisions on one's own of network.The decision information that the network reconfiguration module that the present invention sets up provides according to the heterogeneous networks resource management module is carried out network and terminal reconstruction intelligently, improves the suitable change ability of network.
Description of drawings
Fig. 1 is the Protocol REference Model schematic diagram that IEEE 802.22 proposes.
Fig. 2 is IEEE 1900.4 function structure schematic diagrames.
Fig. 3 is the systemic-function configuration diagram of single operator scenario.
Fig. 4 is the schematic diagram that concerns between IEEE 1900.4 and the ETSI RRS function structure.
Fig. 5 is that the present invention realizes the intelligentized cognition wireless network system configuration composition schematic diagram that heterogeneous network merges.
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 drawings and Examples.
Compare with the designing technique of legacy network system, the introducing of cognitive radio technology, for the architecture design of cognition wireless network system has increased the more freedom degree, it is mainly reflected in three aspects: awareness, independence and suitable sex change, cognitive ability, capacity of will and suitable change ability then are respectively the quantitative descriptions to awareness, independence and suitable sex change.Wherein, cognitive ability is represented the ability of obtaining, express, transmitting and utilize of multi-domain environment information; Capacity of will is illustrated under the environment complicated and changeable, is target to reach overall usefulness, the ability of making decisions on one's own and controlling; The suitable capability list that becomes is shown under the situation that network environment changes the ability of can in time adjust the network decision-making, carrying out.
Referring to Fig. 5, the structure of the intelligent cognition wireless network system of introducing that the present invention realizes that heterogeneous network merges is formed: system of the present invention sets up the new functional entity of the reconstruct with initiatively cognitive, the efficient heterogeneous network resource management of multiple domain, network or terminal in the related network elements of prior wireless network system, thereby extended network cognitive ability, capacity of will and suitable change ability, promote the intellectuality of network management, realize that heterogeneous network merges and the efficient utilization of system spectrum and the overall performance of lifting network.The new functional entity of setting up comprises functional module and interactive interface, and functional module is divided into network side module and end side module according to its network element position of installing, the effect of end side module is assisted network side the corresponding function module supervising the network, and the network side module has following three:
Cognitive information administration module CIM (Cognitive Information Management), be provided with the cognitive information acquiring unit, cognitive information pretreatment unit and the cognitive information characterization unit that are linked in sequence, be used to finish the obtaining of cognitive information, preliminary treatment and sign, for other module provides basic cognitive information.Specifically introduce each Elementary Function in this cognitive information administration module again:
The cognitive information acquiring unit, because of system works of the present invention in a plurality of access networks and deposit, complicated isomerous environment, this unit adopts cognitive radio technology that behavior, state and the parameter of system's external environment condition (mainly comprising wireless environment, network environment, user environment, policy management) are carried out perception, obtains the cognitive information of external environment condition.
The cognitive information pretreatment unit is because the characteristics of environment sensing information are complicated, various, after this unit receives environment sensing information from cognitive information acquiring unit interface, to the screening of environment sensing information and executing, extract and pretreated function such as classification.
The cognitive information characterization unit is used for adopting the mathematical character of unified, complete, standard and science to describe cognitive information to pretreated cognitive information, and formation can quantize and discernible discrete environment sight is gathered.Again the cognitive information after characterizing is handled according to following two kinds of methods:
Merge administration module for heterogeneous network and need directly to use, do not need again the cognitive information of storing, the interface that merges between the administration module by cognitive information administration module and heterogeneous network transmits for example relevant with the channel conditions of user's dynamic change cognitive information.
For the cognitive information of needs storages or study/reasoning, deposit in by the interface between this cognitive information administration module and the intelligent management module latter cognitive information/knowledge base multiple domain cognitive information vector storehouse or pass to the intelligence learning administrative unit.
Above-mentioned each unit of cognitive information administration module of the present invention is the independent respectively setting of each operator.When heterogeneous network fusion administration module will be realized the network planning and radio resource management function under multi-operator scenario, the cognitive information administration module of a plurality of different operators, can for merging administration module, heterogeneous network provide the network configuration information of different operators and the load information of network/cell by interface between the operator that is provided with, avoid or reduce inter-network interference, support handover negotiation optimization and the execution of user between the different operators.
The intelligent management module, control core as this network system, form by intelligence learning administrative unit SLM (SmartLearning Management) and cognitive information/knowledge base CIKB (Cognitive Information/KnowledgeBase), be used to other each functional module that the cognitive data message of study/inference mechanism and magnanimity is provided, assist heterogeneous network to merge administration module and flexibly, dynamically adjust the heterogeneous network Managed Solution.Wherein each Elementary Function is:
Cognitive information/knowledge base, be used to store cognitive information, the inquiry and the renewal of data are provided for other functional modules, and the data based cognitive information source of storage classified, also it is carried out careful division according to the scope of application, time granularity or other sorting techniques of cognitive information, to improve the identification of cognitive information, the convenient extraction and storage.Be provided with three parts: knowledge base, case library and multiple domain cognitive information vector storehouse; Wherein,
Knowledge base is structuring in the stored knowledge engineering, easy to operate, easily utilize, comprehensive organized knowledge cluster, when being used to find the solution certain or some field questions, certain or multiple learning method in the knowledge sheet that the interknits set of storing, organize, managing and use can be provided wherein, and these knowledge sheets comprise the knowwhy relevant with this area, factual data at least, heuristic knowledge and common sense knowledge etc.
Case library is the independent special part of storage in this knowledge base, is used to solve the method for some problem or approach and is certainly and when inevitable, and the present invention just directly stores it wherein as the solution of particular problem or approach.Intelligence learning/inference mechanism just is only limited to selects related content in the case library for use.
Multiple domain cognitive information vector storehouse is made up of the cognitive information of the various not same areas that comprise wireless environment territory, network rings condition, user environment territory and policy management territory, and relevant information is regional characteristic, RAT access, level of interference, mobility, offered load, network capabilities and customer service demand etc. for example.
Than the cognitive information/knowledge base of network side, the cognitive information of end side of the present invention/knowledge base data quantity stored is considerably less, can assist the JRRM﹠amp of end side by network side and end side interface; SO unit and RM unit make decisions.
The intelligence learning administrative unit is used to finish two functions: the 1st, and study/reasoning has the cognitive information of general character, and promptly a plurality of functional units are finished the cognitive information that all will use when making a strategic decision, and by the inside modules interface it are stored in cognitive information/knowledge base; The 2nd, know that by the interface of intermodule heterogeneous network merges each unit of administration module (for example ASM, DNPM﹠amp; SON or JRRM﹠amp; SO) demand adopts the study/inference mechanism that self defines, and instructs other unit to finish intelligent decision.Two kinds of study are finished in other unit: be according to the variation of the current network cognitive information of knowing and in the past network cognitive information prediction network state and provide corresponding solution based on the study of knowledge, so that obtain more perfect multiple domain cognitive information; Study based on case is to find out the case the most similar to current network state in cognitive information/knowledge base, and the decision information of the case of will being correlated with is as the decision information of current network; Because of depend on the case in cognitive information/knowledge base based on the study of case, so will store the magnanimity case.
Heterogeneous network merges administration module, is provided with the advanced spectrum management unit ASM (AdvancedSpectrum Management), dynamic network plan management and the self-organizing network cells D NPM﹠amp that are linked in sequence; SON (Dynamic Network Planning Management ﹠amp; Self-Organizing Network) and Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing unit JRRM﹠amp; SO (Joint Radio Resource Management ﹠amp; And reconstruct administrative unit RM (Reconfiguration Management) Self-Optimization); Be used under the assistance and control of intelligent management module, finishing to a plurality of different Access Networks and heterogeneous network spectrum management, Dynamic Programming and the self-organizing of depositing and joint radio resource management function.The function of each unit of this module is:
Advanced spectrum management ASM unit, be responsible for variation according to traffic carrying capacity, utilize interface with the intelligent management intermodule, by the study/inference mechanism and the cognitive information/knowledge base of intelligence learning administrative unit, between the wireless access network RAT of different operators (Radio Access Technique), carry out redistributing of frequency spectrum resource dynamically, neatly.Its major function provides following knowledge: frequency spectrum uses the spectrum allocation may strategy of framework, composes the knowledge of the current spectrum allocation may of distribution and secondary spectrum allocation may about dominant frequency, the knowledge of the concluded the business frequency band of relevant a plurality of operator scenarios, and with the ability of the ASM unit of other operators transaction frequency band.
Dynamic network plan management ﹠amp; Self-organizing network DNPM﹠amp; The SON unit, after the network spectrum assignment information of internal interface acquisition from the ASM unit, the business demand of the zones of different that obtains according to the load of different RATs with from interface between the cognitive information administration module, utilize interface with the intelligent management intermodule, study/the inference mechanism and the cognitive information/knowledge base that provide according to the intelligence learning administrative unit, finish the network intelligence planning and self-organizing management that comprise that coverage evaluating, capacity assessment, frequency planning and site distribute, so that make a strategic decision for network provides mid-term or long-term reconstruct action.
Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing JRRM﹠amp; The SO unit is used for obtaining from DNPM﹠amp by internal interface; After the network planning of SON unit and the self-organizing information, utilize interface with the intelligent management intermodule, study/the inference mechanism and the cognitive information/knowledge base that provide according to the intelligence learning administrative unit, finish the Radio Resource corporate management between isomery RAT, its major function comprises that the user inserts that selection, neighbor information provide, QoS/ allocated bandwidth/admittance control and provide mobility and the resource management indication; Be responsible for the type of service feature according to user's request, ability and other controlling factors user access of terminal/network; For the user provides seamless connectivity under isomery RAT overlay environment; Provide the monitoring and the judging process that switch between management system, to realize more balanced transmission and load allocating; Other JRRM﹠amp with each base station RAT; The cooperation of SO unit, the realization Business Stream is more fine-grained to be cut apart and scheduling more flexibly.
Reconstruct management RM unit obtains DNPM﹠amp by internal interface; SON unit and JRRM﹠amp; The network reconfiguration information of SO unit, responsible reorganization order of initiating network side, and the reorganization order of coordinating net element device initiation.In order to supervise restructuring procedure end to end, signaling logic mutual and that consult will be supported in this unit; When taking place to switch between the territory, also to finish the context switch and the interpretative function of some necessary session managements and mobile management; Be provided with network reconfiguration management N-RM (Network Reconfiguration Management) unit and terminal reconstruction management T-RM (Terminal Reconfiguration Management), wherein, N-RM is used to support wireless network reconstructed, carry out abstract the public function of multiple heterogeneous radio access networks RAN and encapsulation, to support unified management and visit based on public IP kernel heart net; And by with each RAN in wireless network layer mutual, realize the context corporate management of multiple access net, for the restructuring procedure of terminal provides environmental scanning, software download efficiently and seamless business intercommunication fast; Support comprises the function of the management of Self-X business information, software download management.T-RM is arranged in reconfigurable mobile terminal, except finishing operations such as reconfiguration information management, reconstruction software installation, strategic decision-making execution, also need by the N-RM of interactive interface and network side alternately, find, consult restructuring procedures such as selection, software download to realize network measuring.
The various modules of network side of the present invention are to determine the network element position that it is installed according to the related scope of the Network Management Function of its realization, wherein the ASM unit of heterogeneous network fusion administration module relates to the frequency spectrum transaction between the operator, so be placed in the following network element of core net: the GPRS Support Node gateway GGSN of gsm system or the gateway GMSC of mobile switching centre, the GPRS Support Node gateway GGSN of cdma system or GPRS serving GPRS support node SGSN, and the packet data network gateway PDN-GW or the gateway/S-GW of LTE system; Finish the DNPM﹠amp of the planning management function of Access Network; The SON unit is arranged at the network element in the Access Network: the base station controller BSC of gsm system, the radio network controller (RNC) of cdma system, and the evolved base station eNodeB of LTE system; Be used to finish the JRRM﹠amp of network resource management and self-optimization function; The SO unit also is arranged at the network element of Access Network: the base station controller BSC of gsm system or base station transceiver BTS, the RNC of cdma system or NodeB, and the eNodeB of LTE system, the RM unit that is used to finish the reconstruct management function is arranged at the following network element of Access Network: BSC or BTS, RNC or NodeB, and eNodeB.
The functional unit that each functional unit in the intelligent management module is used for instructing heterogeneous network to merge administration module is finished intelligent decision, so must be arranged at GGSN, GMSC, BSC and the BTS that comprises gsm system in core net and the Access Network simultaneously, each network element of the PDN-GW of the GGSN of cdma system, SGSN, RNC and NodeB, LTE system, S-GW and eNodeB is to realize its function.The cognitive information administration module is arranged at the various different base stations of different system respectively.
The module of end side of the present invention and unit are arranged at the terminal of the various mobile communication system that comprise GSM, TD-SCDMA, WCDMA and LTE, the function of its module and unit is as follows: reconstruct administrative unit RM is used to finish the operation that comprises that reconfiguration information management, reconstruction software installation, strategic decision-making are carried out, also mutual by the N-RM of interactive interface and network side, find, consult the various restructuring procedures of selection, software download to realize network measuring; Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing unit JRRM﹠amp; The JRRM﹠amp of SO assisted network side; The SO unit realizes that terminal inserts selection function, comprises operator's selection, network selecting, wireless access technology selection and cell selecting; Cognitive information administration module CIM carries out and the unit of network side or the identical function of module; Cognitive information/knowledge base data quantity stored is less, is used for assisting by the interactive interface of network side and end side the JRRM﹠amp of end side; SO unit and RM module make decisions.
Between the disparate modules of the present invention or each inside modules all realize information interaction by interface, finish corresponding network function jointly.Therefore, the present invention has four kinds of interactive interfaces: the interactive interface between operator between interactive interface, network side and end side interactive interface, each intermodule interactive interface and each unit of inside modules.
The above only is embodiment of the invention introduction, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (8)
1. intelligent cognition wireless network system that realizes that heterogeneous network merges, it is characterized in that: described system sets up the new functional entity of the reconstruct with initiatively cognitive, the efficient heterogeneous network resource management of multiple domain, network or terminal in the related network elements of prior wireless network system, thereby extended network cognitive ability, capacity of will and suitable change ability, promote the intellectuality of network management, realize that heterogeneous network merges and the efficient utilization of system spectrum and the overall performance of lifting network; The described new functional entity of setting up comprises functional module and interactive interface, and functional module is divided into network side module and end side module according to its network element position of installing, and wherein the network side module comprises:
Cognitive information administration module CIM is provided with the cognitive information acquiring unit, cognitive information pretreatment unit and the cognitive information characterization unit that are linked in sequence, is used to finish the obtaining of cognitive information, preliminary treatment and sign, for other module provides basic cognitive information;
The intelligent management module, control core as this network system, form by intelligence learning administrative unit SLM and cognitive information/knowledge base CIKB, be used to other each functional module that the cognitive data message of study/inference mechanism and magnanimity is provided, assist heterogeneous network to merge administration module and flexibly, dynamically adjust the heterogeneous network Managed Solution;
Heterogeneous network merges administration module, is provided with the advanced spectrum management unit ASM, dynamic network plan management and the self-organizing network cells D NPM﹠amp that are linked in sequence; SON and Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing unit JRRM﹠amp; SO, and reconstruct administrative unit RM; Be used under the assistance and control of intelligent management module, finishing to a plurality of different Access Networks and heterogeneous network spectrum management, Dynamic Programming and the self-organizing of depositing and joint radio resource management function;
The end side module is used for each equipment control network of assisted network side, is provided with the reconstruct administrative unit RM, the Lian Hewuxianziyuanguanli ﹠amp that are linked in sequence; Self-optimizing unit JRRM﹠amp; SO, cognitive information/knowledge base CIKB and cognitive information administration module CIM;
Interactive interface is provided with four kinds: the interactive interface between operator between interactive interface, network side and end side interactive interface, each intermodule interactive interface and each unit of inside modules, information interaction is realized by interactive interface between each module or each unit in the module, finishes corresponding network function jointly.
2. system according to claim 1, it is characterized in that: described cognitive ability is the ability of obtaining, express, transmitting and utilize to multi-domain environment information, capacity of will is under environment complicated and changeable, to reach the ability of making decisions on one's own and controlling that overall usefulness is target, suitable change ability is when network environment changes, and can in time adjust network decision-making and the ability of carrying out.
3. system according to claim 1 is characterized in that: the function of each unit in the described cognitive information administration module is:
The cognitive information acquiring unit, because of this system works in a plurality of access networks and deposit, complicated isomerous environment, this unit adopts cognitive radio technology that behavior, state and the parameter of the various systems external environment condition that comprises wireless environment, network environment, user environment, policy management are carried out perception, obtains the cognitive information of external environment condition;
The cognitive information pretreatment unit is because of the characteristics of environment sensing information are complicated, various, after this unit receives environment sensing information from cognitive information acquiring unit interface, to the screening of environment sensing information and executing, extract and the preliminary treatment of classifying;
The cognitive information characterization unit is used for adopting the mathematical character of unified, complete, standard and science to describe cognitive information to pretreated cognitive information, and formation can quantize and discernible discrete environment sight is gathered; Again the cognitive information after characterizing is handled according to following two kinds of methods:
Merging administration module for heterogeneous network needs directly to use, does not need again the cognitive information of storing, and transmits by cognitive information administration module and interface between the heterogeneous network fusion administration module;
For the cognitive information of needs storages or study/reasoning, deposit in by the interface between this cognitive information administration module and the intelligent management module latter cognitive information/knowledge base multiple domain cognitive information vector storehouse or pass to the intelligence learning administrative unit.
4. system according to claim 1 is characterized in that: the function of each unit in the described intelligent management module is:
Cognitive information/knowledge base is used to store cognitive information, and the inquiry and the renewal of data are provided for other functional modules; And classifying in the data based cognitive information source to storage, also according to the scope of application, time granularity or other sorting techniques of cognitive information it is carried out careful division, to improve the identification of cognitive information, the convenient extraction and storage; Be provided with knowledge base, case library and multiple domain cognitive information vector storehouse; Wherein, knowledge base is structuring in the stored knowledge engineering, easy to operate, easily utilize, comprehensive organized knowledge cluster when being used to find the solution certain or some field questions, can provide wherein certain or multiple learning method in the knowledge sheet that the interknits set of storing, organize, managing and use, described knowledge sheet comprises the knowwhy relevant with this area, factual data at least, heuristic knowledge and common sense knowledge; Case library is the independent special part of storage in this knowledge base, is used to solve the method for some problem or approach and is certainly and when inevitable, just it is directly stored wherein as the solution of particular problem or approach; Intelligence learning/inference mechanism just is only limited to selects related content in the case library for use; Multiple domain cognitive information vector storehouse is made up of the cognitive information of the various not same areas that comprise wireless environment territory, network rings condition, user environment territory and policy management territory, and relevant information comprises regional characteristic, RAT access, level of interference, mobility, offered load, network capabilities and customer service demand;
The intelligence learning administrative unit, be used to finish two functions: study/reasoning has the cognitive information of general character, and promptly a plurality of functional units are finished the cognitive information that all will use when making a strategic decision, and by the inside modules interface it are stored in cognitive information/knowledge base; Know that by the interface of intermodule heterogeneous network merges the demand of each unit of administration module, adopt the study/inference mechanism that self defines, instruct other unit to finish intelligent decision; The latter finishes two kinds of study: based on the study of knowledge, promptly according to the variation of the current network cognitive information of knowing and in the past network cognitive information prediction network state and provide corresponding solution, so that obtain more perfect multiple domain cognitive information; Study based on case is to find out the case the most similar to current network state in cognitive information/knowledge base, and the decision information of the case of will being correlated with is as the decision information of current network; Because of depend on the case in cognitive information/knowledge base based on the study of case, so will store the magnanimity case.
5. according to claim 1 or 3 described systems, it is characterized in that: above-mentioned each unit of described cognitive information administration module is the independent respectively setting of each operator; When described heterogeneous network fusion administration module will be realized the network planning and radio resource management function under multi-operator scenario, each cognitive information administration module of a plurality of different operators is to provide the network configuration information of each different operators and the load information of network/cell by interface between the operator that sets up for heterogeneous network merges administration module, so that avoid or reduce inter-network interference, support handover negotiation optimization and the execution of user between the different operators.
6. system according to claim 1 is characterized in that: the function that described heterogeneous network merges each unit in the administration module is:
Advanced spectrum management ASM unit, be responsible for variation according to traffic carrying capacity, utilize interface with the intelligent management intermodule, by the study/inference mechanism and the cognitive information/knowledge base of intelligence learning administrative unit, between the wireless access network RAT of different operators (Radio Access Technique), carry out redistributing of frequency spectrum resource dynamically, neatly; Its function provides following knowledge: comprise that frequency spectrum uses the knowledge of current spectrum allocation may of spectrum allocation may strategy, the distribution of relevant dominant frequency spectrum and the secondary spectrum allocation may of framework, the knowledge of the concluded the business frequency band of relevant a plurality of operator scenarios, and with the ability of the ASM unit of another operator transaction frequency band;
Dynamic network plan management ﹠amp; Self-organizing network DNPM﹠amp; The SON unit, after the network spectrum assignment information of internal interface acquisition from the ASM unit, the business demand of the zones of different that obtains according to the load of different RATs with from interface between the cognitive information administration module, utilize interface with the intelligent management intermodule, study/the inference mechanism and the cognitive information/knowledge base that provide according to the intelligence learning administrative unit, finish the network intelligence planning and self-organizing management that comprise that coverage evaluating, capacity assessment, frequency planning and site distribute, so that make a strategic decision for network provides mid-term or long-term reconstruct action;
Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing JRRM﹠amp; The SO unit is used for obtaining from DNPM﹠amp by internal interface; After the network planning of SON unit and the self-organizing information, utilize interface with the intelligent management intermodule, study/the inference mechanism and the cognitive information/knowledge base that provide according to the intelligence learning administrative unit, finish the Radio Resource corporate management between isomery RAT, its function comprises that the user inserts that selection, neighbor information provide, QoS/ allocated bandwidth/admittance control and provide mobility and the resource management indication; Be responsible for the type of service feature according to user's request, ability and other controlling factors user access of terminal/network; For the user provides seamless connectivity under isomery RAT overlay environment; Provide the monitoring and the judging process that switch between management system, to realize more balanced transmission and load allocating; Other JRRM﹠amp with each base station RAT; The cooperation of SO unit, the realization Business Stream is more fine-grained to be cut apart and scheduling more flexibly;
Reconstruct management RM unit obtains DNPM﹠amp by internal interface; SON unit and JRRM﹠amp; The network reconfiguration information of SO unit, responsible reorganization order of initiating network side, and the reorganization order of coordinating net element device initiation; For supervising restructuring procedure end to end, signaling logic mutual and that consult will be supported in this unit; When taking place to switch between the territory, also to finish the context switch and the interpretative function of some necessary session managements and mobile management; Be provided with network reconfiguration management N-RM (Network Reconfiguration Management) unit and terminal reconstruction management T-RM (Terminal Reconfiguration Management), N-RM is used to support wireless network reconstructed, carry out abstract the public function of multiple heterogeneous radio access networks RAN and encapsulation, to support unified management and visit based on public IP kernel heart net; And by with each RAN in wireless network layer mutual, realize the context corporate management of multiple access net, for the restructuring procedure of terminal provides environmental scanning, software download efficiently and seamless business intercommunication fast; Support comprises the function of the management of Self-X business information, software download management; T-RM is used to finish reconfiguration information management, reconstruction software installation, the strategic decision-making of terminal to be carried out, and is undertaken alternately by the N-RM of interactive interface and network side, with the restructuring procedure of realizing comprising the network measuring discovery, consulting selection, software download.
7. system according to claim 1, it is characterized in that: the various modules of described network side are to determine the network element position that it is installed according to the related scope of the Network Management Function of its realization, wherein the ASM unit of heterogeneous network fusion administration module relates to the frequency spectrum transaction between the operator, realize its corresponding function so be placed in the following network element of core net: the GPRS Support Node gateway GGSN of gsm system or the gateway GMSC of mobile switching centre, the GPRS Support Node gateway GGSN of cdma system or GPRS serving GPRS support node SGSN, and the packet data network gateway PDN-GW or the gateway/S-GW of LTE system; Finish the DNPM﹠amp of the planning management function of Access Network; The SON unit then is arranged at the following network element in the Access Network: the base station controller BSC of gsm system, the radio network controller (RNC) of cdma system, and the evolved base station eNodeB of LTE system; Be used to finish the JRRM﹠amp of network resource management and self-optimization function; The SO unit also is arranged at the following network element of Access Network: the base station controller BSC of gsm system or base station transceiver BTS, the RNC of cdma system or NodeB, and the eNodeB of LTE system, the RM unit that is used to finish the reconstruct management function is arranged at the following network element of Access Network: BSC or BTS, RNC or NodeB, and eNodeB.
The functional unit that functional unit in the intelligent management module is used for instructing heterogeneous network to merge administration module is finished intelligent decision, so must be arranged at the GGSN that comprises gsm system, GMSC, BSC and the BTS of core net and Access Network simultaneously, each network element of the PDN-GW of the GGSN of cdma system, SGSN, RNC and NodeB, LTE system, S-GW and eNodeB is to realize its function;
The cognitive information administration module is arranged at the various different base stations of different system respectively.
8. system according to claim 1 or 5, it is characterized in that: the module of described end side and unit are arranged at the terminal of the various mobile communication system that comprise GSM, TD-SCDMA, WCDMA and LTE, the function of its module and unit is as follows: reconstruct administrative unit RM is used to finish the operation that comprises that reconfiguration information management, reconstruction software installation, strategic decision-making are carried out, also mutual by the N-RM of interactive interface and network side, find, consult the various restructuring procedures of selection, software download to realize network measuring; Lian Hewuxianziyuanguanli ﹠amp; Self-optimizing unit JRRM﹠amp; The JRRM﹠amp of SO assisted network side; The SO unit realizes that terminal inserts selection function, comprises operator's selection, network selecting, wireless access technology selection and cell selecting; Cognitive information administration module CIM carries out and the unit of network side or the identical function of module; Cognitive information/knowledge base data quantity stored is less, is used for assisting by the interactive interface of network side and end side the JRRM﹠amp of end side; SO unit and RM module make decisions.
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