CN101426193A - Network resource information management method, communication apparatus and communication system - Google Patents
Network resource information management method, communication apparatus and communication system Download PDFInfo
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Abstract
The present invention discloses a method for managing network resource information and comprises the following procedures: receiving network resource information request from access device or terminal; obtaining the network resource information required for obtaining the request in the distributed network according to the request and/or network index information; and feeding back the obtained network resource information to the access device or terminal. The invention also discloses a communication device and communication system. Through the embodiment of the invention, the management of network resource information is executed with a distributing mode under a heterogeneous integrated network structure for facilitating the shearing and alternating of network resource information. The present invention provides an operable settling plan for the management, shearing, dynamic updating, etc. of network resource information under the existing heterogeneous integrated network structure.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method, communication equipment and communication system of network resource administration information.
Background technology
Along with the continuous development of Internet and IP technology and communication technology standard further combined with, future communications grid framework will be the layer-stepping network architecture that comprises the all-IP of different radio access network and heterogeneous networks, and IP agreement and IP-based business also will become the upper network layer agreement of future mobile communications net and the development trend of service application.Simultaneously, network edge then can be made of a plurality of different radios and cable network, the edge network interface can be GSM/GPRS, 3G cellular network interface, it also can be B3G/4G air interface, IEEE 802 serial radio network interfaces, self-organizing network (Ad Hoc) interface, and satellite and network interfaces such as Internet, PSTN, ADSL, the transmission environment of heterogeneous networks can be different, the frequency range that adopts also can be different, so just needs to consider the integration and the internetwork intercommunication of different access networks environment.
The mobile communication platform system of this employing layer-stepping will have the better elastic framework in future, and can support different system, multiple technologies, various value-added service, and the needs of global communication, but will inevitably bring many problems to existing wireless network resource management like this.Based on IP and location-based handoff technique, based on the dynamic frequency allocation of multiple network and multiple business, access control, scheduling, network capacity distribute, handoff technique, relate in the network and internetwork resource management scheme or the like aspect towards the ICP/IP protocol of mobile communication etc.
Current, 3GPP has also formulated the problem that corresponding standard is considered RRM under the UNE scene of multiple wireless access technology coexistence.Such as, in centralized RRM, consider tightly coupled fusion architecture, among network, there is a controlled entity of concentrating to come network resource administration, the easier although it is so optimization use of global resource and the target of maximized system capacity of reaching, but lack flexibility, need compare big change to network for increasing new access technology.Also have, distributed RRM mode though can well solve the problem of flexibility and extensibility, is difficult to reach the optimization use of resource.Though the application of JRRM joint radio resource management in distributed RRM, the radio management function is distributed in the wireless network of equity, but because being on the increase along with network, distributedly want mutual information also will rise with exponential form, this also brings adverse effect to distributed radio resource management.
For the Internet resources of following heterogeneous network, or even comprising the network resource management of wireless network resource and fixed network resource, at first is to obtain Internet resources fast, easily, just can carry out effective resource management on this basis.Internet resources are not only Home Network this locality, but also comprise the resource in heterogeneous network, other any place.And the flexible management that realizes resource is also wanted and can in time be responded the dynamic change of network, such as, the adding of new access network, or the withdrawing from of network, and the change of network characteristic etc.Make these variations can too much influence not arranged to existing network.Therefore, in existing network resource management, to consider these problems.
Current, in IEEE 802.21 draft standards, propose the MIH function and realized the heterogeneous network handoff procedure.In this standard, use independently information services of medium (MIIS) discovery and acquisition information of network in a geographic area that network selection and switching are provided.Mainly be to switch relevant information, general networking information, link layer information and high layer information in order to provide to high level.These information are exactly the information of a part of Radio Resource in the RRM.MIIS can find and the state information of obtaining or heterogeneous network similar in a certain geographic area the MIH functional entity from the angle of the overall situation.And just paid close attention among the MIIS that mentions among the IEEE 802.21 which information is arranged in information service, not relating to these information is how to obtain, and how this manages these information, just the stored data base of a Radio Resource.And the deployment to MIIS in 802.21 does not have clear and definite definition yet, to not relating to alternately of information between each MIIS.
Current network resource management to complicated heterogeneous network is still an outstanding question.
Summary of the invention
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of method, communication equipment and communication system of network resource administration information.Network resource information management and a kind of practical, convenient solution efficiently that provides of sharing are provided.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of method of network resource administration information, comprising:
Reception is from the network resource information request of access device or terminal;
According to described request and/or network index information, in distributed network, obtain the required network resource information of this request;
The network resource information that gets access to is fed back to described access device or terminal.
The embodiment of the invention also provides a kind of communication equipment, comprises interface unit, first memory cell, request-response unit, network function unit, wherein,
First memory cell is used for the storage networking resource information;
The network function unit is used for the network resource information of first memory cell is offered the network node of distributed network; Obtain network resource information from the network node of distributed network;
Interface unit is used to obtain the network resource information from access device and/or terminal, and described network resource information is stored in first memory cell; Reception offers request-response unit from the network resource information request of access device or terminal with this request; Reception is fed back this network resource information from the network resource information of request-response unit to access device;
Request-response unit, according to network resource information request from described interface unit, in described first memory cell, obtain the required network resource information of this request, the network resource information that gets access to is offered described interface unit, perhaps, the trigger network functional unit obtains the required network resource information of this request.
The embodiment of the invention also provides a kind of communication system, comprises the network resource information management entity, and this entity is deployed in the distributed network, is used for:
Obtain and store network resource information from access device or terminal;
Reception is from the network resource information request of access device or terminal;
According to described request and/or network index information, in distributed network, obtain the required network resource information of this request;
The network resource information that gets access to is fed back to described access device or terminal.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention adopts distributed mode to carry out the management of network resource information under isomery UNE framework, make the shared of network resource information and become convenient alternately, for existing isomery UNE framework lower network resource information management, share, dynamically update etc. provides practicable solution.
Description of drawings
Fig. 1-a is the composition schematic diagram of the embodiment of the invention one communication equipment;
Fig. 1-b is the composition schematic diagram of the embodiment of the invention one communication equipment;
Fig. 1-c is the composition schematic diagram of the embodiment of the invention one communication equipment;
Fig. 2 is the composition schematic diagram of the interface unit of the embodiment of the invention one communication equipment;
Fig. 3 is the composition schematic diagram of the request-response unit of the embodiment of the invention one communication equipment;
Fig. 4 is the composition schematic diagram of the embodiment of the invention two resource management entity (RME);
Fig. 5-a is the flow chart that the embodiment of the invention three RME add network;
Fig. 5-b is the flow chart that the embodiment of the invention three RME exit network;
Fig. 6 be RME and attachment point in the embodiment of the invention three (Point of Attachment, PoA), mobile node (MobiIe Node, MN) schematic diagram of the information interaction between;
Fig. 7 is the flow chart of finding in the embodiment of the invention three with retrieving information;
Fig. 8 finds in the embodiment of the invention three and retrieving information flow chart more specifically;
Fig. 9 is that the system of the embodiment of the invention four forms schematic diagram.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical scheme that the embodiment of the invention proposed is elaborated below in conjunction with accompanying drawing.
The related network resource information of the embodiment of the invention comprises: wireless network resource information and fixed network resource information, Internet resources can comprise: the state information of network node, configuration information, neighbor list, link information, mobile station information, and the various information of the communication carrier ability of network node networks such as (as telephone traffic, bandwidth, busy-idle conditions).
Embodiment one
Present embodiment provides a kind of communication equipment, and shown in Fig. 1-a, this equipment comprises: interface unit 102, first memory cell 104, network function unit 106, request-response unit 108, wherein,
With reference to Fig. 2, interface unit 102 can be divided into: the first interface unit 102-2 and the second interface unit 102-4, wherein,
The first interface unit 102-2, be used for medium independently mode obtain the network resource information of access device and/or terminal, this network resource information is offered first memory cell;
The second interface unit 102-4 is used to receive the network resource information request from access device or terminal, and this request is offered request-response unit; Reception is fed back this network resource information from the network resource information of request-response unit to access device.Because this communication equipment is deployed in the heterogeneous network framework, so in order to shield the different access way of bottom (as WiFi, Wimax, HSPA, xDSL, 2G etc.), this interface unit is integrated media independent handoff function (Media IndependentHandover Function is abbreviated as MIHF).
Request-response unit 108 according to the network resource information request from described interface unit, obtains the required network resource information of this request in described memory cell, perhaps, the trigger network functional unit obtains the required network resource information of this request; The network resource information that gets access to is offered described interface unit.
With reference to Fig. 3, request-response unit 108 can be divided into: retrieval unit 108-2, judging unit 108-4, feedback unit 108-6, wherein,
Retrieval unit 108-2 is used for according to the network resource information request from described interface unit, the required network resource information of retrieval described request in described memory cell;
Judging unit 108-4 is used to judge whether described retrieval unit can retrieve the required network resource information of described request; If can, then trigger described feedback unit the network resource information that retrieves is fed back to interface unit; If can not, then the trigger network functional unit obtains the required network resource information of this request;
Feedback unit 108-6 will feed back to described interface unit from the network resource information that retrieval unit or network function unit obtain.
Further, request-response unit can comprise: sequencing unit 108-8, the network resource information that obtains from retrieval unit or network function unit is carried out prioritization, and the back network resource information that will sort offers described feedback unit.
In concrete enforcement, some logic function (as database) in the memory cell can combine with some logic function module (as judging unit, retrieval unit, sequencing unit) of request-response unit.
With reference to Fig. 1-b, further, this communication equipment comprises: second memory cell 110 is used for the storage networking index information.The network index information comprises address information, the geographical location information of adjacent node in the distributed network, index information of each network element etc.; When the ambient network environment change, this unit can real-time storage upgrade these information.Interface unit 102 also receives the network index information from distributed network; The described network index information that receives is stored in second memory cell 110.Second memory cell specifically can be the combination of storage medium and software, and storage medium can be physical mediums such as hard disk, RAM, FLASH or optical storage media; Software can be logic function modules such as certain database or software program.
With reference to Fig. 1-c, further, this communication equipment also comprises: explorer 112, be used for network resource administration, and the strategy of retrieval network resource information is provided.
This communication equipment can be with other network equipment---and mutually integrated as AR couple in router, gateway etc.
Embodiment two
With reference to Fig. 4, present embodiment is based on further specializing of embodiment one, present embodiment provides a kind of communication equipment---resource management entity (Resource Management Entity, be abbreviated as RME), this resource management entity RME comprises: peer-to-peer network functional module, network resource data storehouse, resource management module and MIHF and interface module, wherein
The peer-to-peer network functional module, this module comprises index data base, storing network index informations such as network node identifier N_ID, IP address, Internet resources index information (the PoA relevant information of other RME issues, for in network fast Query Information index is provided), this peer-to-peer network functional module can also include management information issuing, retrieval (as, after the local data library searching was less than network resource information, other RME at distributed network retrieved by this module), search the submodule that function correspondences such as route are provided for RME.It all is reciprocity that the peer-to-peer network functional module makes each RME that is deployed in the distributed network, and each RME bears function corresponding, both provides network resource information as server for distributed network, obtains service as client computer from distributed network again.Each RME can carry out the inquiry and the issue of information, and network resource information is shared on distributed network, has avoided the bulk information that brings owing to newly-increased network mutual.
The network resource data storehouse, be used to preserve all attachment points (PoA) relevant information (comprising local resource information, network resource information, neighbor list etc.) that RME is in charge of, the algorithm policy support be provided---comprising: the network resource information request according to PoA or terminal retrieve, judge and according to judged result (as at the notebook data library searching less than the network resource information of being asked) trigger the peer-to-peer network functional module and from other node of distributed network, obtain network resource information; Network resource information is carried out functions such as prioritization.
MIHF and interface module, the same access device of this interface module, attachment point (PoA) or terminal etc. communicate, has independently function of medium, can shield the different access technology of bottom (as WiFi, Wimax, HSPA, xDSL, 3G etc.) and obtain the local network resource information, and communicate with other functional modules.
Explorer is used for network resource administration information, the information that management peer-to-peer network functional module, database and MIHF and interface module provide; The strategy of retrieval network resource information is provided, or the like.
RME is an entity of realizing network resource management, it obtains local network resource information by the MIHF functional module, can comprise network resource informations such as Radio Resource, broadband networks, PSTN net, and set up local data base, neighbor networks figure etc. according to the PoA situation of being responsible for, generate the Internet resources list item.RME joins in the distributed network by the peer-to-peer network functional module, and according to information such as geographical position corresponding information is published in the distributed network, obtains the information of other RME on the network simultaneously, sets up index data base in the peer-to-peer network functional module.
This resource management entity can be with other network equipment---and mutually integrated as router, gateway etc.
Embodiment three
Present embodiment is an example with the resource management entity (RME) of embodiment two, and the flow process that RME adds, exits network and upgrade network is described.
The distributed network that constitutes for RME can adopt DHT (Distributed Hash Table, distributed hashtable) this all distributed structure peer-to-peer network, do not need to be provided with special server in network, the function of all nodes in the network is reciprocity.Therefore, the network element in network can comprise: network elements such as RME, Boot Server (Bootstrap Server), registration/certificate server and map server etc.
When RME carried out network resource information management, except can obtaining from distributed network the network resource information, the zone that can also manage from this locality obtained corresponding network resource information.Resource management database in RME, having information server, policing algorithm multiple function such as provides.In the scope of RME management, multiple access technology can be arranged and deposit, in order to shield the technology of these isomeries, adopt among the IEEE 802.21 medium independently mode carry out RRM, information gathering etc.At RME, the MIH module is all arranged among PoA and the MN, be used for the communication of the information of carrying out.
When carrying out distributed network resource information management, at first, RME will interconnect, and makes up a distributed network, and RME can add and exit network at any time in distributed network.RME is linked in the network through being directed server after the registration/authentication, RME issues the relevant information of self on network, make other RME on the distributed network upgrade relevant index data base, and accept the index data base of the information architecture in the automatic network itself.
Fig. 5 a represents that RME adds the flow process of distributed network:
S502:RME carries out Hash calculation according to its IP address (or IP address and port numbers), obtains network node identifier (N_ID);
S504:RME sends registration/authentication request to registration/certificate server;
S506: successfully by behind the registration/identifying procedure, RME is connected to Boot Server (BootstrapServer), Bootstrap Server can return one or more current online network nodes, RME selects wherein certain node RME, communicate with it, the acquisition of Bootstrap Server address can be by being pre-configured among the RME or by dns lookup acquisition etc.;
S508: insert RME by this and join in the distributed network;
S510:RME carries out the information issue on network, RME with the relevant information of its PoA that is in charge of according to geographical location information---as attachment point identifier PoA_ID, longitude X, latitude Y, coverage R etc.---in peer-to-peer network, issue, the building network resource index is published to purpose network node RME to the Internet resources index---and satisfy Hash ([longitude X], [latitude Y]) and be responsible for ([] is the rounding operation symbol) by purpose network node RME.Such as concerning this DHT peer-to-peer network of Chord, be exactly that Hash ([longitude X], [latitude Y]) drops between the range of identifiers of RME forerunner's identifier and RME, other DHT peer-to-peer network type has the corresponding judgment rule; Purpose network node RME is stored in Internet resources index information etc. in the index data base of self.RME receives the network information, upgrades local index data base, and other RME on network are also according to the corresponding data of information updating.
Fig. 5 b represents the flow process that RME exits network:
RME leaves or changes the variation that can cause network resource information from distributed network under the situations such as (outage, network characteristic change) in normal condition or because cause specific, thus the database update of relevant RME on the trigger network.
When normal deviated from network of RME or change characteristic, RME can initiatively delete or change the information of index data base relevant on network, on whole network content is upgraded.When RME under improper situation during deviated from network, network can be learnt the variation of RME by periodic inspection, and the network information is upgraded being checked through the back.
Present embodiment also illustrates the flow process that network resource information obtains and upgrades:
RME has made up distributed network when carrying out network resource management, except the network resource information in can the database of acquisition itself, can also obtain network resource information from access device (as attachment point PoA) or the terminal itself be in charge of, can also obtain the network resource information of other RME by distributed network.RME receives the network informations such as the state information, configuration information, neighbor list, link information, mobile station information of the PoA be responsible for, and also reception comes the network of relation environmental resource information of automatic network and the change of the information that causes owing to network change.RME utilizes these information to come building network resource database and index data base, and the data in can these databases of real-time update, can and reshuffle the foundation that selection is provided for the network selecting of MN.When the ambient network environment change, also can dispose the PoA information of being responsible for according to specific circumstances.
As shown in Figure 6, be the mutual schematic diagram of configuration and information interaction between RME and PoA, the MN.At this isomerism that multiple access technology presented owing to network, RME adopts the mode of medium independent (MIH) to obtain information and configuration information.
MN in the sub-district of each PoA measures the state of self place network, the result of these measurements, and the PoA under reporting by the MIH function such as the link condition of the state of MN, the network that using etc.Each PoA also can measure information such as the network conditions, loading condition, neighbor list of affiliated area, and these information are reported RME, is stored in by RME in the database of itself.
As MN or PoA during to RME request network resource information, RME gives them according to request with the corresponding network feedback information of MN or PoA request.When MN request network resource information, can directly in the PoA at place, obtain, also can connect with RME obtains corresponding network resource information.
When RME carries out the information issue, can be by the mode of RME with periodic broadcast, also can be to be issued in the mode of active request by MN or PoA.
When network state changed, fashionable such as having new RME or new network to add, corresponding RME upgraded index data base in the network, and distribution configuration command upgrades the neighbor networks information of the corresponding PoA that is managed.
Present embodiment further specifies the retrieval flow of network resource information, and with reference to Fig. 7, this flow process comprises:
S702: receive network resource information request from access device or terminal;
S704: should ask required network resource information according to described request at local search, and, then the network resource information that retrieves be fed back to described access device or terminal if can retrieve described resource information; If can not, then in distributed network, retrieve the network resource information of this request according to the network index information, the network resource information that retrieves is fed back to described access device or terminal;
S706: the network resource information that retrieves is fed back to described access device or terminal.
Access device described in the S702 to S706 comprises attachment point etc.
In concrete enforcement, when MN need carry out network selecting or reshuffle, MN is to the network resource information in the place that network requests will obtain, location name or corresponding longitude and latitude are sent to network, by RME is discovery and the retrieval that the user provides (comprising MN and PoA) network resource information, make mobile node can obtain the neighbor networks information in required zone, for mobile node is made network selecting or configuration suitable network resource provides foundation.Below further specify the flow process of network resource information retrieval:
S802:MN is with the network resource information query requests, comprise geographic name or (longitude X, latitude Y, query context R) submits to affiliated local RME (" affiliated RME " refers to and be in charge of and the RME that safeguards the PoA that this MN is connected), when inquiring about, need geographic name be videoed into the form that network can be discerned by map server with geographic name;
S804: local RME retrieves in the network resource data storehouse of this locality, if retrieve required information in this database, then directly this information is sent to MN, if not then retrieve according to query requests in distributed network;
S806: local RME retrieves according to query requests in distributed network, in network, find the purpose network node RME that satisfies condition, described " condition " can be one-Hash ([longitude X], [latitude Y]) be responsible for ([] is the rounding operation symbol) by purpose RME, such as concerning this DHT peer-to-peer network of Chord, be exactly Hash ([longitude X], [latitude Y]) drop between the range of identifiers of purpose RME forerunner's identifier and purpose RME, other DHT network type has its corresponding judgment rule;
S808: search the index information that satisfies query requests (longitude X, latitude Y, query context R) in the index data base of purpose RME, obtain result set Result, Result returns RME with result set, and it is as follows wherein to search the index information process that satisfies query requests:
According to PoA (identifying) index information---(PoA_ID, longitude X in query requests (longitude X, latitude Y, query context R) and the index data base with PoA_ID
PoA, latitude Y
PoA, coverage R
PoA)-(N_ID IP), calculates covering relation, if formula below satisfying thinks that then PoA satisfies query requests:
(longitude X
PoA-longitude X)
2+ (latitude Y
PoA-latitude Y)
2＜(coverage R
PoA+ query context R)
2
Record format among the result set Result can for:
(PoA_ID, longitude X
PoA, latitude Y
PoA, coverage R
PoA)-(N_ID, IP);
S810: local RME is according to the record in the result set (PoA_ID, longitude X
PoA, latitude Y
PoA, coverage R
PoA)-(N_ID IP), to the details of purpose RME request PoA, and feeds back to user MN with the details of returning;
S812: the information retrieval flow process finishes.
In S808, may further include: result set Result is carried out prioritization at local RME or on purpose RME, according to the request of MN and the characteristic of MN the network that is obtained is carried out prioritization, the Internet resources that find the most suitable MN to use, the network selecting that may carry out for MN or reshuffle corresponding foundation is provided.
MN obtains neighbor networks information and also can obtain by the periodic information broadcast of RME, and MN can receive the network resource information of region, and this is to carry out the mutual of information by the MIHF function.
Embodiment four
Present embodiment provides a kind of communication system, as shown in Figure 9, is deployed in the distributed network, comprises a plurality of network resource management entities and a plurality of access device (as attachment point PoA) etc., wherein,
Network resource management entity (RME) is used to obtain the network resource information from access device; The storage networking resource information is carried out information interaction with other network resource management entity; Reception and response are from the network resource information request of access device; This entity also can be used for storage, issue, retrieval of network resource information etc.;
Attachment point PoA is used for providing network resource information to the network resource management entity; Send network resource information request to the network resource management entity; Reception is from the network resource information of network resource management entity.
Further, this system can also comprise:
Boot Server (Bootstrap Server), be used for preserving the address information (as network identity and IP address etc.) of distributed network network resource management entity,, assist new network resource management entity to add network so that thereby the RME that newly joins in the network can join the network from access point of Bootstrap Server acquisition;
Authentication/registrar provides Security Authentication Service when being used to new network resource management entity to add network, makes the RME that only meets the demands can join in the network;
The Map Services unit, be used to accept the inquiry of geographical geography information, carry out corresponding format conversion, such as geographic name (such as Shenzhen, Beijing etc.) and (longitude X are provided, latitude Y, inquiry coverage R) reflection service, thus make network can support fuzzy query (promptly pressing the geographic name inquiry); This unit can be separate equipment, also can be that its logic function is integrated in miscellaneous equipment such as Boot Server or RME etc.; The function of this unit in the network resource information retrieval is existing in embodiment three to be introduced in detail, does not repeat them here.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (15)
1, a kind of method of network resource administration information is characterized in that, comprising:
Reception is from the network resource information request of access device or terminal;
According to described request and/or network index information, in distributed network, obtain the required network resource information of this request;
The network resource information that gets access to is fed back to described access device or terminal.
2, the method for claim 1 is characterized in that, further comprises after the step of described reception from the network resource information request of access device or terminal: search the required network resource information of this request in this locality according to described request;
If can find described network resource information, then the network resource information that finds is fed back to described access device or terminal; If can not, then in distributed network, search the network resource information of this request according to the network index information, the network resource information that gets access to is fed back to described access device or terminal.
3. the method for claim 1 is characterized in that, further comprises:
Reception is from the network index information of distributed network;
The described network index information that receives is stored in this locality.
4. method as claimed in claim 3 is characterized in that, further comprises:
Reception is from the network resource information of access device;
Receive the network resource information of self terminal;
The described network resource information that receives is stored in this locality.
5. method as claimed in claim 4 is characterized in that, with medium independently mode shield different access technologies, receive from the network resource information of access device and come the network resource information of self terminal.
6, a kind of communication equipment is characterized in that, comprises interface unit, first memory cell, request-response unit, network function unit, wherein,
First memory cell is used for the storage networking resource information;
The network function unit is used for the network resource information of first memory cell is offered the network node of distributed network; Obtain network resource information from the network node of distributed network;
Interface unit is used to obtain the network resource information from access device and/or terminal, and described network resource information is stored in first memory cell; Reception offers request-response unit from the network resource information request of access device or terminal with this request; Reception is fed back this network resource information from the network resource information of request-response unit to access device or terminal;
Request-response unit, according to network resource information request from described interface unit, in described first memory cell, obtain the required network resource information of this request, the network resource information that gets access to is offered described interface unit, perhaps, the trigger network functional unit obtains the required network resource information of this request.
7, communication equipment as claimed in claim 6 is characterized in that, further comprises: second memory cell is used for the storage networking index information.
8, communication equipment as claimed in claim 7 is characterized in that, the described request response unit comprises judging unit, retrieval unit and feedback unit, wherein,
Retrieval unit is used for according to the network resource information request from described interface unit, the required network resource information of retrieval described request in described memory cell;
Judging unit is used to judge whether described retrieval unit can retrieve the required network resource information of described request; If can, then trigger described feedback unit the network resource information that retrieves is fed back to interface unit; If can not, then the trigger network functional unit obtains the required network resource information of this request according to described network index information;
Feedback unit will feed back to described interface unit from the network resource information that retrieval unit or network function unit obtain.
9, communication equipment as claimed in claim 8 is characterized in that, the described request response unit further comprises:
Sequencing unit carries out prioritization to the network resource information that obtains from retrieval unit or network function unit, and the back network resource information that will sort offers described feedback unit.
10. communication equipment as claimed in claim 6 is characterized in that, described interface unit comprises:
First interface unit, be used for medium independently mode obtain the network resource information of access device, this network resource information is offered memory cell;
Second interface unit is used to receive the network resource information request from access device, and this request is offered the described request response unit; Reception is fed back this network resource information from the network resource information of described request response unit to access device.
11, communication equipment as claimed in claim 6 is characterized in that, further comprises:
Explorer is used for network resource administration information, and the strategy of retrieval network resource information is provided.
12., it is characterized in that this communication equipment is integrated in the router as each described communication equipment of claim 6～11.
13, a kind of communication system is characterized in that, comprises the network resource information management entity, and this entity is deployed in the distributed network, is used for:
Obtain and store network resource information from access device or terminal;
Reception is from the network resource information request of access device or terminal;
According to described request and/or network index information, in distributed network, obtain the required network resource information of this request;
The network resource information that gets access to is fed back to described access device or terminal.
14, system as claimed in claim 13 is characterized in that, further comprises:
Certificate server provides Security Authentication Service when being used to new network resource management entity to add network;
Boot Server, the address information that is used for preserving distributed network network resource management entity guides new network resource management entity to add network.
15, system as claimed in claim 14 is characterized in that, further comprises:
The Map Services unit is used to accept the inquiry of geography information, carries out corresponding format conversion.
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| CN2007101242328A CN101426193B (en) | 2007-11-01 | 2007-11-01 | Network resource information management method, communication apparatus and communication system |
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| CN101932065A (en) * | 2010-07-30 | 2010-12-29 | 中国科学院软件研究所 | Method for discovering distributed satellite network resources |
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| CN100391157C (en) * | 2004-05-28 | 2008-05-28 | 华为技术有限公司 | Network resource management method and device |
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