CN100479592C - Cross-domain heterogeneous network system and adjacent network switching method and device - Google Patents
Cross-domain heterogeneous network system and adjacent network switching method and device Download PDFInfo
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Abstract
The adjacent network includes user terminal affiliated source network, one or more objective networks neighboring to source network. The switch management server (SMS) in source network is configured in service switching management server. The method includes steps: context-sensing server in source network collects and processes relevant context information (RCI) of user terminal; based on RCI to generate switching trigger event; RCI includes network information of source network, network information of target network, and terminal information; SMS in source network and SMS in target network to be switched to carries out switching management for the switching trigger event; under switching management, user terminal is switched to target network from source network. The invention also discloses a kind of switch equipment in use for isomeric network across domains, and isomeric network system across domains.
Description
Technical field
The present invention relates to the communications field, more specifically, relate between cross-domain heterogeneous network system and adjacent networks and switch switching method and apparatus.
Background technology
Along with developing rapidly of the communication technology, the new communication technology and standard emerge in an endless stream, and communications industry is experiencing a new development and changing the phase.At communication network in the process of high speed, broadband, individualized development, diversified wireless communication technology and network have appearred, comprise: 2G (GSM), 2.5G (GPRS), 3G (UMTS), WLAN, WiMax, PAN, fixed network etc., this has brought abundant isomerism to communication network, and isomerism also is one of principal character of wireless network environment in the following a very long time.Therefore, the intercommunication of research heterogeneous network and fusion have become the main trend of communications field research and development.
The target of following UNE be realize anyone at any time and any place with any information of any object interaction, this just need carry out seamless support to user's business, therefore, how to realize seamless roaming and the focus that switches in order to study and to pay close attention to.Different according to the position of source and target network and management area can be divided into following four types switching corresponding movable management:
Vertical grand mobility (Vertical Macromobility): the user uses different wireless technologys, moves between different management domains;
The grand mobility of level (Horizontal Macromobility): the user uses identical wireless technology, moves between different management domains;
Vertical little mobility (Vertical Micromobility): the user uses the different radio technology, moves in same administrative domain;
The little mobility of level (Horizontal Micromobility): the user uses the same wireless technology, moves in same administrative domain;
In order to make full use of the resource of different management domains, heterogeneous networks, provide more, higher-quality business to the user, the support of the seamless handover method between cross-domain heterogeneous network must be arranged, this has proposed different demands to terminal, the network equipment.At present, industry is in the solution that this field provided, and some subject matters of existence have:
(1) handoff technique between the heterogeneous network of main support terminal triggering and decision-making lacks the support to the vertical switching of netinit and decision-making; Because terminal can't intactly be collected the relevant information of network portion, this causes terminal to trigger and the switching of judgement can't reach optimal effectiveness.Simultaneously, these class methods also cause the Terminal Design complexity, need support additional functions and a large amount of computings so that triggering and the decision-making to vertical switching to be provided, and energy saving is poor;
(2) the context-aware function with reshuffle function and isolate independently, cause netinit and the slow efficient of decision process speed low;
(3) it is clear and definite inadequately in the network user to be carried out the functions of the equipments definition of handover management;
(4) in the design of terminal, usually adopt the multimode terminal of compromise, cost an arm and a leg and do not possess versatility and autgmentability, can not satisfy the user to immanent, various types of Internet resources demands of applications.
Summary of the invention
The purpose of the embodiment of the invention is to provide method and apparatus between a kind of cross-domain heterogeneous network system and adjacent networks, to realize the seamless switching between heterogeneous network.
In embodiments of the present invention, a kind of adjacent network switching method is provided, wherein, adjacent networks comprises: the source network under the user terminal, one or more objective networks with the source network adjacency, handover management server in the source network is configured to serve the handover management server, this method comprises: the context-aware server collection in the source network and the related context information of process user terminal, produce handover trigger event according to related context information, wherein, related context information comprises the network information of source network, the network information of objective network, and end message; Handover management server in the objective network of source network handover management server and chosen switching carries out handover management at handover trigger event; And user terminal is realized the switching from the source network to the objective network under handover management.
In above-mentioned adjacent network switching method, related context information is collected and handled to the context-aware server, producing handover trigger event according to related context information specifically comprises: set up the related of source network handover management server and user terminal, hereinafter aware services device subscription context information makes progress; The context-aware server filters out the contextual information that changes to collecting the processing of classifying of successful contextual information, and produces handover trigger event; The context-aware server sends handover trigger event to source network handover management server.
In above-mentioned adjacent network switching method, handover management server in the objective network of source network handover management server and chosen switching carries out handover management at handover trigger event and specifically comprises: source network handover management server is adjudicated handover trigger event, and whether the judgement user terminal needs switches and should switch to which objective network; The handover management server of the objective network of chosen switching judges whether the continuous business that can provide identical with source network to handover trigger event, if can, then the objective network switching server is configured to serve the handover management server; Otherwise the objective network switching server is configured to act on behalf of the handover management server; Which resource objective network handover management server notification user terminal need reconfigure.
In above-mentioned adjacent network switching method, user terminal realizes that under handover management the switching from the source network to the objective network specifically comprises: user terminal reconfigures resource as per advice, if having stored, user terminal reshuffles resource, then user terminal is directly reconfigured, otherwise user terminal obtains from database and reshuffles resource and reconfigure.
In above-mentioned adjacent network switching method, database comprise following one of at least: local data base, in abutting connection with the third party database of network data base or trusted.
In above-mentioned adjacent network switching method, when switching server was configured to serve the handover management server, adjacent network switching method also comprised: switch, service handover management server is set up the communication link with user terminal; Be user terminal registration, subscription context information; And source network handover management server discharges and to reshuffle resource, provides continuous service by objective network for user terminal.
In above-mentioned adjacent network switching method, when switching server is configured to act on behalf of the handover management server, adjacent network switching method also comprises: keep the relevant resource of source network, the handover management server is set up and the communication link of user terminal by acting on behalf of; For the user terminal registration, collect contextual information; And the packet of acting on behalf of handover management server forwards service handover management server and terminal room, and the resource between source of release network and user terminal.
In above-mentioned adjacent network switching method, contextual information also comprise following one of at least: user preferences, associated profiles, user's historical record and application message.
In above-mentioned adjacent network switching method, also comprise: user terminal adopts the method for self study, according to user's setting and software frequency of utilization strategy, resource commonly used or that the user sets is stored.
In above-mentioned adjacent network switching method, between described adjacent networks cross-domain isomery relation, described switching is the vertical switching between cross-domain heterogeneous network.
In embodiments of the present invention, switching device shifter between a kind of adjacent networks also is provided, wherein, adjacent networks comprises: the source network under the user terminal, one or more objective networks with the source network adjacency, source network handover management server is configured to serve the handover management server, switching device shifter comprises between adjacent networks: the handover trigger module, be used for instructing the context-aware server of source network to collect and the related context information of process user terminal, produce handover trigger event according to related context information, wherein, related context information comprises the network information of source network, the network information of objective network, and end message; Switching management module is used for instructing the handover management server of objective network of source network handover management server and chosen switching to carry out handover management at handover trigger event; And handover module, be used to instruct user terminal under handover management, to realize switching from the source network to the objective network.
In embodiments of the present invention, a kind of cross-domain heterogeneous network system also is provided, the source network and the objective network that comprise cross-domain isomery, be respectively applied for to user terminal service is provided, source network comprises: the handover management server, it establishes relatedly with user terminal, is configured to serve the handover management server; The context-aware server is used to collect with the related context information of process user terminal, produces handover trigger event, and wherein, contextual information comprises the network information, end message and link information; Objective network comprises the handover management server, is used for carrying out handover management with the handover management server of source network at handover trigger event, so that user terminal is vertically switched to objective network from source network.
Specifically, the adjacent network switching method of the present invention's proposition and device and cross-domain heterogeneous network system have following technique effect:
(1) in network, utilizes the context-aware server to collect and manage related context information, produces handover trigger event; Owing in network, adopted powerful context-aware server, therefore can collect more and switch relevant contextual information, and the processing of better classifying, produce handover trigger event; Simultaneously,, only need reporting terminal and relevant link information, therefore, can significantly save power consumption because in this scheme, terminal just helps out; In addition, can also simplify design and the processing of terminal aspect switching, make device manufacturers then exploitation more users application function that be concerned about, powerful.
(2) in network, adopted the handover management server, carried out unified processing and control switching relevant treatment; In network, adopt special handover management server, can and act on behalf of two kinds of patterns according to the service of being configured to respectively of different disposal needs, be convenient to carry out processing unified, that concentrate: can utilize its powerful calculating, processing, memory function to switching associative operation, store abundanter strategy, incorporate user's hobby, greater flexibility is provided; Simultaneously, finish and the context management server between mutual, according to strategy and relevant handover trigger event, information, provide the switch decision of optimization.In addition, this server can also be connected by setting up link with objective network in advance, finishes the relevant preceding method of operating of switching, and has significantly shortened handover delay.
(3) terminal equipment is reconfigurable terminal, have great flexibility and autgmentability, can keep under user's communication and the successional prerequisite of miscellaneous service, reshuffle by the mode of from software database, carrying out the download of software or protocol stack, to offer ambulant support between the cross-domain heterogeneous network of user, remedy the shortcoming of existing multimode terminal flexibility deficiency, simultaneously, reduced the terminal cost significantly.In addition, this terminal also can adopt the method for self study, according to strategies such as user's setting and applying frequencies, and storage RAT protocol stack and corresponding software commonly used in database, make the same resource of repeated downloads that the user needn't be frequent, come in to avoid the waste of resource.
(4) trigger and judgement in network enabled, add network strategy and user preferences, in the time of the vertical handoff method of optimization, can compatible ground support terminal trigger and the changing method of judgement, have good versatility, extensibility and transplantability.
Merit attention, because cross-domain heterogeneous network is the most complicated adjacent networks relation, so since the changing method described in the following embodiment can be applicable to cross-domain heterogeneous network, so certainly, can also be applicable to other adjacent networks, for example be applicable to multiple adjacent networks such as non-cross-domain non-isomery, cross-domain non-isomery, non-cross-domain isomery.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the adjacent network switching method of the embodiment of the invention;
Fig. 2 is the handover operation schematic diagram according to the embodiment of the invention;
Fig. 3 is the flow chart that switches according to the realization of the embodiment of the invention;
Fig. 4 is according to operational flowchart before the switching of the embodiment of the invention;
Fig. 5 is according to operational flowchart in the switching of the embodiment of the invention;
Fig. 6 is an operational flowchart after the switching of the target handover management server according to the embodiment of the invention when being configured to serve the handover management server; And
Fig. 7 is the block diagram according to switching device shifter between the adjacent networks of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
The invention provides a kind of cross-domain heterogeneous network system, comprise the source network and the objective network of cross-domain isomery, be respectively applied for to user terminal service is provided that source network comprises: the handover management server, it establishes relatedly with user terminal, is configured to serve the handover management server; The context-aware server is used to collect with the related context information of process user terminal, produces handover trigger event, and wherein, contextual information comprises the network information, end message and link information; Objective network comprises the handover management server, is used for carrying out handover management at handover trigger event, to realize user terminal vertical switching of (that is, from the source network to the objective network) between cross-domain heterogeneous network under the handover management.
Fig. 1 is the flow chart with adjacent network switching method according to the embodiment of the invention.Among the present invention database can comprise following one of at least: local data base, in abutting connection with the third party database of network data base or trusted; Reshuffle resource and can comprise corresponding software and/or protocol stack; Protocol stack can comprise the WAP (wireless access protocol) stack.
As shown in Figure 1, this changing method may further comprise the steps:
Step S102, the context-aware server collection in the source network and the related context information of process user terminal, produce handover trigger event according to related context information, wherein, related context information comprises the network information of source network, the network information and the end message of objective network;
Step S104, the handover management server in the objective network of source network handover management server and chosen switching carries out handover management at handover trigger event; And
Step S106, user terminal is in the vertical switching that realizes under the handover management between cross-domain heterogeneous network.
Related context information is collected and handled to the context-aware server, and producing handover trigger event can may further comprise the steps: set up the related of source network handover management server and user terminal, hereinafter aware services device subscription context information makes progress; The context-aware server filters out the contextual information that changes to collecting the processing of classifying of successful contextual information, and produces handover trigger event; The context-aware server sends handover trigger event to source network handover management server.
Carrying out handover management can may further comprise the steps: source network handover management server is adjudicated handover trigger event, and whether the judgement user terminal needs switches and should switch to which objective network; The handover management server of the objective network of chosen switching judges whether the continuous business that can provide identical with source network to handover trigger event, if can, then the objective network switching server is configured to serve the handover management server; Otherwise the objective network switching server is configured to act on behalf of the handover management server; Which resource objective network handover management server notification user terminal need reconfigure.
User terminal realizes that under described handover management the switching from described source network to described objective network can may further comprise the steps: user terminal reconfigures resource as per advice, if having stored, user terminal reshuffles resource, then user terminal is directly reconfigured, otherwise user terminal obtains from database and reshuffles resource and reconfigure.
When switching server is configured to serve the handover management server, can may further comprise the steps: switch, service handover management server is set up the communication link with user terminal; Be user terminal registration, subscription context information; And source network handover management server discharges and to reshuffle resource, provides continuous service by objective network for user terminal.
When switching server is configured to act on behalf of the handover management server, can may further comprise the steps: keep the relevant resource of source network, the handover management server is set up and the communication link of user terminal by acting on behalf of; For the user terminal registration, collect contextual information; And the packet of acting on behalf of handover management server forwards service handover management server and terminal room, and the resource between source of release network and user terminal.
Preferably, contextual information also can comprise following one of at least: user preferences and associated profiles, user's historical record and application message.
Preferably, user terminal adopts the method for self study, according to user's setting and software frequency of utilization strategy, resource commonly used or that the user sets is stored.
Can be cross-domain isomery relation between described adjacent networks, described switching can be the vertical switching between cross-domain heterogeneous network.But obviously, because cross-domain heterogeneous network is the most complicated adjacent networks relation, so since the changing method described in the following embodiment can be applicable to cross-domain heterogeneous network, so certainly, can also be applicable to other adjacent networks, for example be applicable to multiple adjacent networks such as non-cross-domain non-isomery, cross-domain non-isomery, non-cross-domain isomery.
In the above-mentioned method, terminal equipment is reconfigurable terminal, have great flexibility and autgmentability, can keep under user's communication and the successional prerequisite of miscellaneous service, reshuffle by the mode of from software database, carrying out the download of software or protocol stack,, remedied the shortcoming of existing multimode terminal flexibility deficiency to offer ambulant support between the cross-domain heterogeneous network of user, simultaneously, reduced the terminal cost significantly.In addition, this terminal also can adopt the method for self study, according to strategies such as user's setting and applying frequencies, and storage RAT protocol stack and corresponding software commonly used in database, make the same resource of repeated downloads that the user needn't be frequent, come in to avoid the waste of resource.In addition, trigger and judgement in network enabled, add network strategy and user preferences, in the time of the vertical handoff method of optimization, above-mentioned method can compatible ground support terminal triggers and the changing method of judgement, has good versatility, extensibility and transplantability.
Fig. 2 is a handover operation schematic diagram according to an embodiment of the invention.As shown in Figure 2, suppose that the user is using a kind of application service in the network, but produced the possibility of switching (in an embodiment of the present invention, being example) owing to position, service quality (QoS) demand or other environment, condition change, then produced following handover operation step with the change in location:
1. after the user-network access registration, network is assigned the HOMS of service for the user, and finishes information subscribing to CS;
2.CS obtain and handle contextual information by terminal, Home Network with in abutting connection with network, and produce the perception trigger event;
The user under the situation that objective network moves, HOMS makes switch decision according to trigger event, selected target network, and connect under the continual situation keeping existing, HOMS connects with objective network, finishes user's registration, authentication and power mirror;
4. according to the user profile that obtains, from software or the protocol stack of software server (SR) to the user's download needs; And
At last, the step 5 of same operation and step 6: the user is accomplished to the foundation of new link of objective network and the subscription of the information in objective network CS.
Fig. 3 realizes the flow chart that switches according to an embodiment of the invention,, may further comprise the steps:
Step S302, it is related with S-HOMS to set up MT after the new user-network access registration;
Step S304, S-HOMS and CS are mutual, obtain related context information;
Step S306, based on contextual information is carried out switch decision, if judgement does not need to switch, then gets back to step S304;
Step S308, when judgement needed to switch, successful switch was to objective network; And
Step S310 carries out and switches the back operation.
Fig. 4 switches preceding operational flowchart according to an embodiment of the invention.Fig. 5 is an operational flowchart in switching according to an embodiment of the invention.Fig. 6 is an operational flowchart after switching when target handover management server is configured to serve the handover management server according to an embodiment of the invention.Below with reference to Fig. 4-6 detailed description concrete handover operation process as shown in Figure 3.
According to embodiments of the invention, operate, switch the back during switching realizes operating, switching before main treatment step comprises switching as mentioned below and operate.
One. operation before switching
Operation has comprised the contextual information subscription again before the switching as shown in Figure 4, and information gathering is handled, produced handover trigger event, and information interaction is made several sub-steps of switch decision, and is specific as follows:
(A) contextual information is subscribed to:
The user for the first time finishes registration in the home domain network after, network will be set up related between HOMS and user MT, will be according to network strategy and user's hobby, be provided with etc., subscribe to the contextual information of being correlated with to CS.Wherein:
1. the contextual information of subscribing to according to network strategy is that the CS needs are collected, some information that handover operation is necessary, and such information type seldom changes, unless operator changes network strategy, this category information is the acquiescence subscription information, mainly comprises:
(a) network information: in abutting connection with network topology, network parameter (type, availability, performance, load perception etc.), operator etc.;
(b) end message: terminal type, ability, position etc.; And
(c) link information: link signal intensity etc., can be by terminal to report;
2. the contextual information of subscribing to according to user's setting, hobby etc. is that CS collects and is used for assisting, optimizing handover operation, and CS can dynamically adjust the information category that needs are collected according to the different demand of user.This category information is for can subscribe to photos and sending messages.Mainly comprise:
(a) user preferences and relevant Profile (archives);
(b) user's historical record comprises network service recorder, application service record etc.; And
(c) application message comprises ongoing business, the QoS relevant with service etc.
(B) information gathering processing, handover trigger event produce:
CS is by information gathering multiple modes such as (S are mutual with the adjacency network C) between terminal to report, Home Network inquiry, net, finish collection to the information of various subscription, simultaneously to its processing of classifying, filter out the contextual information that changes, and, produce handover trigger event according to predefined strategy.The trigger event that produces according to a) in to the classification of different subscription information, can be divided into the acquiescence triggered time again and subscribe to trigger event two big classes, respectively to change acquiescence subscription information and optional subscription information.
(C) information interaction, make switch decision:
CS with handover trigger event by with the interface of HOMS, pass to HOMS, HOMS is according to predefined switch decision algorithm, trigger event is made assessment and judgement, and whether decision needs to switch, if desired, also the supplementary that will provide according to CS is carried out the optimum target network selection.
Two. operate in the switching
Operation has comprised with objective network and has set up new communication link in the switching as shown in Figure 5, and the pre-registration of terminal, objective network HOMS functional configuration, corresponding software, protocol stack are downloaded, and terminal such as reshuffles at operation, and is specific as follows:
(A) foundation of new communication link:
HOMS after having selected objective network, with initiate with objective network in the HOMS of the equity request of setting up communication link, treat that objective network returns acknowledge message after, begin to carry out necessary information interaction, simultaneously, keep the connection of former network still continuous, guarantee user's conversation continuity;
(B) terminal pre-registration:
By newly-established communication link, source HOMS can send to user related information and register requirement in the objective network through target HOMS, fulfils the basic operations such as registration, authentication and authentication of user in objective network ahead of schedule.
(C) objective network HOMS functional configuration:
When carrying out handover operation, objective network HOMS can be according to the user and the business information that obtain, and judging whether can be for the user provides the continuous business identical with source network, if can, then objective network HOMS can be configured to S-HOMS, carry out chain of command and switch; Otherwise, HOMS is configured to P-HOMS, carry out agent functionality;
(D) corresponding software, protocol stack are downloaded:
According to relevant user information, judge whether user terminal needs to carry out reshuffling of software, protocol stack etc.; If desired, then can pass through local data base,, download corresponding software, protocol stack to MT in abutting connection with the third party database downloading mode of network data base or trusted.If user terminal has been stored related software, can skip this step, directly it is configured.
(E) terminal reconfiguration operation:
Terminal will be installed configuration to it after downloaded software is carried out inspections such as integrality, availability, note number of times and frequency that new software and protocol stack use simultaneously, store according to the software that is provided with needs, avoid repeated downloads waste resource.
Three. switch the back operation
Switching the back operation mainly is to carry out corresponding operating according to the difference configuration (S-HOMS or P-HOMS) of target HOMS:
(A) as shown in Figure 6, target HOMS is configured under the S-HOMS situation:
1. with target HOMS configuring condition notification source network and MT, and carry out the switching of chain of command;
2. by the new communication link of objective network foundation with MT;
3. in objective network CS, be user's registration, and, subscribe to related context information according to network strategy and user's request; (specifically subscribe to and handle operation and see the preceding operation part of switching)
4. notification source network HOMS discharges related resource, comprises discharging among respective link resource and the CS memory space etc., directly provides continuous business by objective network for the user;
(B) target HOMS is configured under the P-HOMS situation:
1. notification source network and MT, target HOMS configuring condition keeps the source network related resource simultaneously;
2.S-HOMS link by P-HOMS and objective network foundation and MT;
In objective network CS for the user registers, collect user's relevant information in objective network;
4.P-HOMS, transmit the packet between S-HOMS and MT, and source of release network and terminal room communication channel resources as the agency.
Fig. 7 is the block diagram that is used for according to switching device shifter 700 between adjacent networks of the present invention, and it comprises:
Handover trigger module 702, be used for instructing the context-aware server of source network to collect and the related context information of process user terminal, produce handover trigger event according to related context information, wherein, related context information comprises the network information of source network, the network information and the end message of objective network;
Switching management module 704 is used for instructing the handover management server of objective network of source network handover management server and chosen switching to carry out handover management at handover trigger event;
Specifically, embodiments of the invention have following technique effect when the vertical switching that is used between cross-domain heterogeneous network:
(1) in network, utilizes the context-aware server to collect and manage related context information, produces handover trigger event; Owing in network, adopted powerful context-aware server, therefore can collect more and switch relevant contextual information, and the processing of better classifying, produce handover trigger event; Simultaneously,, only need reporting terminal and relevant link information, therefore, can significantly save power consumption because in this scheme, terminal just helps out; In addition, can also simplify design and the processing of terminal aspect switching, make device manufacturers then exploitation more users application function that be concerned about, powerful.
(2) in network, adopted the handover management server, carried out unified processing and control switching relevant treatment; In network, adopt special handover management server, can and act on behalf of two kinds of patterns according to the service of being configured to respectively of different disposal needs, be convenient to carry out processing unified, that concentrate: can utilize its powerful calculating, processing, memory function to switching associative operation, store abundanter strategy, incorporate user's hobby, greater flexibility is provided; Simultaneously, finish and the context management server between mutual, according to strategy and relevant handover trigger event, information, provide the switch decision of optimization.In addition, this server can also be connected by setting up link with objective network in advance, finishes the relevant preceding method of operating of switching, and has significantly shortened handover delay.
(3) terminal equipment is reconfigurable terminal, have great flexibility and autgmentability, can keep under user's communication and the successional prerequisite of miscellaneous service, reshuffle by the mode of from software database, carrying out the download of software or protocol stack, to offer ambulant support between the cross-domain heterogeneous network of user, remedy the shortcoming of existing multimode terminal flexibility deficiency, simultaneously, reduced the terminal cost significantly.In addition, this terminal also can adopt the method for self study, according to strategies such as user's setting and applying frequencies, and storage RAT protocol stack and corresponding software commonly used in database, make the same resource of repeated downloads that the user needn't be frequent, come in to avoid the waste of resource.
(4) trigger and judgement in network enabled, add network strategy and user preferences, in the time of the vertical handoff method of optimization, can compatible ground support terminal trigger and the changing method of judgement, have good versatility, extensibility and transplantability.
Merit attention, because cross-domain heterogeneous network is the most complicated adjacent networks relation, so since the changing method described in the following embodiment can be applicable to cross-domain heterogeneous network, so certainly, can also be applicable to other adjacent networks, for example be applicable to multiple adjacent networks such as non-cross-domain non-isomery, cross-domain non-isomery, non-cross-domain isomery.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.Should be understood that the variation in these concrete enforcements is conspicuous for a person skilled in the art, do not break away from spiritual protection range of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. adjacent network switching method, wherein, described adjacent networks comprises: the source network under the user terminal, one or more objective networks with described source network adjacency, it is characterized in that, handover management server in the described source network is configured to serve the handover management server, and described adjacent network switching method comprises:
The related context information of described user terminal is collected and handled to context-aware server in the described source network, produce handover trigger event according to described related context information, wherein, described related context information comprises the network information and the end message of the network information of described source network, described objective network;
Handover management server in the described objective network of described source network handover management server and chosen switching carries out handover management at described handover trigger event; And
User terminal is realized the switching from described source network to described objective network under described handover management.
2. adjacent network switching method according to claim 1 is characterized in that, related context information is collected and handled to the context-aware server, produces handover trigger event according to described related context information and specifically comprises:
Set up the related of described source network handover management server and described user terminal, subscribe to described contextual information to described context-aware server;
Described context-aware server filters out the described contextual information that changes, and produces described handover trigger event collecting the processing of classifying of successful described contextual information;
Described context-aware server sends described handover trigger event to described source network handover management server.
3. adjacent network switching method according to claim 1, it is characterized in that the handover management server in the described objective network of described source network handover management server and chosen switching carries out handover management at described handover trigger event and specifically comprises:
Described source network handover management server is adjudicated described handover trigger event, and whether adjudicate described user terminal needs to switch and should switch to which described objective network;
The handover management server of the described objective network of chosen switching judges whether the continuous business that can provide identical with source network to described handover trigger event, if can, then described objective network switching server is configured to serve the handover management server; Otherwise described objective network switching server is configured to act on behalf of the handover management server;
Which resource the described user terminal of described objective network handover management server notification need reconfigure.
4. adjacent network switching method according to claim 3, it is characterized in that, user terminal realizes that under described handover management the switching from described source network to described objective network specifically comprises: described user terminal reconfigures resource according to described notice, if described user terminal has been stored the described resource of reshuffling, then described user terminal is directly reconfigured, otherwise described user terminal obtains from database and reshuffles resource and reconfigure.
5. adjacent network switching method according to claim 4 is characterized in that, described database comprise following one of at least: local data base, in abutting connection with the third party database of network data base or trusted.
6. adjacent network switching method according to claim 3 is characterized in that, when described switching server was configured to serve the handover management server, described adjacent network switching method also comprised:
Carry out described switching, described service handover management server is set up the communication link with described user terminal;
For described user terminal registration, subscribe to described contextual information; And
Described source network handover management server discharges the described resource of reshuffling, and provides continuous service by described objective network for described user terminal.
7. adjacent network switching method according to claim 3 is characterized in that, when described switching server was configured to act on behalf of the handover management server, described adjacent network switching method also comprised:
Keep the relevant resource of described source network, by the described communication link of acting on behalf of foundation of handover management server and described user terminal;
For described user terminal registration, collect described contextual information; And
The described packet of acting on behalf of handover management server forwards described service handover management server and described terminal room, and discharge resource between described source network and described user terminal.
8. adjacent network switching method according to claim 1 is characterized in that, described contextual information also comprise following one of at least: user preferences, associated profiles, user's historical record and application message.
9. adjacent network switching method according to claim 1 is characterized in that, also comprises: described user terminal adopts the method for self study, according to user's setting and software frequency of utilization strategy, resource commonly used or that the user sets is stored.
10. according to each described adjacent network switching method in the claim 1 to 9, it is characterized in that, is cross-domain isomery relation between described adjacent networks, and described switching is the vertical switching between cross-domain heterogeneous network.
11. switching device shifter between an adjacent networks, wherein, described adjacent networks comprises: the source network under the user terminal, one or more objective networks with described source network adjacency, it is characterized in that, described source network handover management server is configured to serve the handover management server, and switching device shifter comprises between described adjacent networks:
The handover trigger module, be used for instructing the context-aware server of described source network to collect and handle the related context information of described user terminal, produce handover trigger event according to described related context information, wherein, described related context information comprises the network information and the end message of the network information of described source network, described objective network;
Switching management module is used for instructing the handover management server of described objective network of described source network handover management server and chosen switching to carry out handover management at described handover trigger event; And
Handover module is used to instruct user terminal to realize switching from described source network to described objective network under described handover management.
12. a cross-domain heterogeneous network system is characterized in that, comprises the source network and the objective network of cross-domain isomery, be respectively applied for to user terminal service is provided,
Described source network comprises:
The handover management server, it establishes relatedly with described user terminal, is configured to serve the handover management server;
The context-aware server, be used to collect and handle described user terminal related context information, produce handover trigger event, wherein, described contextual information comprises the network information, end message and link information;
Described objective network comprises the handover management server, is used for carrying out handover management with the handover management server of described source network at described handover trigger event, so that described user terminal is vertically switched to described objective network from described source network.
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| CN101541064A (en) * | 2008-03-18 | 2009-09-23 | 华为技术有限公司 | Network discovery and selection method, network system and device |
| CN101651898B (en) * | 2008-08-15 | 2012-12-12 | 华为技术有限公司 | Method, device and system for acquiring position area information during switching heterogeneous networks |
| US9066309B2 (en) * | 2008-09-23 | 2015-06-23 | Qualcomm Incorporated | Method and apparatus for reducing successive pre-registration attempts by access terminals |
| CN101990174B (en) * | 2009-07-29 | 2016-06-15 | 中兴通讯股份有限公司 | Message method and GPRS serving GPRS support node |
| CN102387180B (en) * | 2010-09-02 | 2014-12-24 | 中国人民解放军国防科学技术大学 | Self-adopting communication system and method thereof |
| WO2012064067A2 (en) * | 2010-11-10 | 2012-05-18 | 에스케이 텔레콤주식회사 | Method for changing connections between heterogeneous networks, and policy-providing device and terminal device for supporting same |
| CN102448136B (en) * | 2012-01-10 | 2018-09-28 | 中兴通讯股份有限公司 | Multi-mode terminal service switching method and device |
| CN103248653B (en) * | 2012-02-09 | 2016-06-08 | 联芯科技有限公司 | Based on multi-terminal reconfiguration system and the method for virtual terminal context environmental perception |
| CN103389977B (en) * | 2012-05-07 | 2017-05-31 | 华为技术有限公司 | Realize method, relevant apparatus and the system of context-aware web application |
| CN104509161B (en) * | 2012-08-07 | 2018-11-16 | 华为技术有限公司 | Switching handling method and base station |
| WO2016029462A1 (en) * | 2014-08-29 | 2016-03-03 | 华为技术有限公司 | Network function customizing method and system, and network controller |
| KR102201676B1 (en) * | 2016-05-10 | 2021-01-13 | 소니 모바일 커뮤니케이션즈 가부시키가이샤 | Method and server for controlling the relocation of MEC applications |
| CN106789238A (en) * | 2016-12-20 | 2017-05-31 | 北京智芯微电子科技有限公司 | A kind of processing method and system of Intelligent power distribution network isomery fusion |
| CN108076072B (en) * | 2018-01-16 | 2020-02-18 | 杭州电子科技大学 | Dynamic switching method for Web heterogeneous redundant system |
| CN109982401A (en) * | 2019-03-21 | 2019-07-05 | 南京先锋硕通无线技术有限公司 | Switching optimization method suitable for LTE wireless signal acquiring and analysis system |
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