CN1832438A - Service switchover system of next network and its method - Google Patents
Service switchover system of next network and its method Download PDFInfo
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Abstract
This invention discloses a service switch system and its method for the network of the next generation, in which, a switch control point processes switch request and switch condition management, controls the switch and condition judgement in concentration, a service control point applies in setting up new session links and removing the original session link in the switch to be matched by the terminal and the access network node. In the process of switch, the terminal triggers switch request and the service control point reports the switch control point, which judges the switch condition and sends the switch instruction and the service control point sets up new links and removes the original one by signaling interaction to finish seamless switch.
Description
Technical field
The present invention relates to next generation network technology, particularly the service switchover system of next generation network and method.
Background technology
Next generation network (Next Generation Network is called for short " NGN ") is milestone of telecommunication history, indicates the arrival in new generation telecommunication network epoch.NGN is at traditional public switched telephone network based on circuit switching (Public Switched Telephone Network, be called for short " PSTN ") in stepped gradually to based on the paces of packet switching, it has carried all business of original PSTN network, simultaneously great amount of data transmission is unloaded to Internet protocol (Internet Protocol, be called for short " IP ") in the network to alleviate the heavy burden of PSTN network, the new features with the IP technology increase and have strengthened many old and new's business again.We can say, NGN is based on time-multiplexed PSTN speech network and based on IP/ asynchronous transfer mode (Asynchronous Transfer Mode, abbreviation " ATM ") product that packet network merges, it makes that integrated services such as voice, video, data become possibility on new generation network.
The most important character of NGN is the framework that adopts carrying to separate with control, and the core bearer network is the packet switching network, and key-course is then based on Softswitch technology.NGN can realize the fusion of miscellaneous service, can realize fusion fixing and that move, and it has inherited all business of original PSTN fixed network, has also enough inherited mobile network's professional ability simultaneously.NGN combines the advantage of fixed-line telephone network, mobile telephone network and IP network, make analog subscriber, digital subscriber, mobile subscriber, asymmetric data subscribers feeder (Asymmetric Data Subscriber Line, abbreviation " ADSL ") user of user, ISDN(Integrated Service Digital Network) (Integrated Service Data Network is called for short " ISDN ") user, IP narrowband network user, IP broadband network user or even access via satellite can both intercom mutually as a member in the next generation network.Therefore, be a very important traffic performance for ambulant tenability, particularly for the tenability of the seamless switching of real-time session class business.
So-called seamless switching, in wireless technology, switch and be meant that mobile subscriber terminal is under the session status, when a radio coverage roams into the another one radio coverage, for a certain reason, when new radio coverage signal strength signal intensity is enough to support this service bearer to service bearer can't be provided such as the signal attenuation of former radio coverage, user's session also switches to new wireless access network from former Radio Access Network, in this handoff procedure, need to keep the continuity of ongoing session control and user's face Media Stream, promptly reach the standard of seamless switching.
Different with in the past network exchange is, the network that NGN separates as carrying and professional control, and its business data flow directly transmits between communication terminal by packet network, and the professional control then service control point of process application layer is operated.Fig. 1 shows carrying and the typical model of controlling separated network.
Different user can be linked into by identical or different Access Networks among the NGN, and they can also can adhere to different service control points separately under same service control point, and all nodes can reach at packet layer.Service control point is responsible for controlled function such as the distribution of foundation, media resource of session and route, and service control point also may adopt the pattern of layering, as route and professional control separate processes; Service control point need be with user interactions control signaling, when the user at angelica different business control point need communicate by letter, also need between the different business control point to control and consult with mutual, in case finish the negotiation of signaling and the foundation of session, Media Stream will only occur over just between the user, and not need through service control point.User terminal 101 and user terminal 102 insert NGN from Access Network 103 and access network 104 respectively among the figure, receive the control of service control point 105 and service control point 106 respectively, when communication service is set up, the control Signalling exchange takes place with user terminal 101, user terminal 102 in service control point 105, service control point 106 separately, service control point 105 and service control point 106 also need Signalling exchange and negotiation each other then, set up the DCL of user terminal 101 to user terminal 102 then, data are directly transmitted by packet network.
As controlling the network that is separated with carrying, NGN user unlike traditional mobile communications network inserts and business is set up equal radio network controller centralized control, therefore the user between the adjacent wireless area roams caused professional the switching, can realize easily under radio network controller control.How in NGN, realize different Access Networks especially between the wireless access network customer service seamless switching be current urgent problem.
Have a kind of Media Stream assemblage method can solve the support of professional seamless switching among the NGN at present, Fig. 2 shows Media Stream and converges the network model of realizing professional switching.Under Media Stream converges pattern, session foundation and route are still only finished by service control point, but difference has been to introduce a new medium process points, is responsible for finishing the medium processing capacity of similar meeting control, and the Media Stream that is about to all sessions all converges to this point.Set up in the process to the session of user terminal 202 in initial user terminal 201, under service control point 205 and service control point 206 controls, by Access Network 203 and Access Network 204, media resource is to be operatively connected to medium process points 207, as media link among the figure 208 and media link 209, and taken place to move to when inserting in 210 coverages when user terminal 202, need carry out business switches, under the control of service control point 206, set up earlier the media link 211 of user terminal 202 to medium process points 207, and then dismounting media link 209, so just guaranteed the ability of seamless switching, in whole handoff procedure, for ongoing session also not influence.
But, realize that by the medium pattern that converges the method for seamless switching can cause the flow at medium process points place huge, when all sessions all need at first to be established to this medium process points, makes the medium process points become the bottleneck of network.And if do not introduce the medium process points, then can't realize the foundation and the dismounting of media link in user's moving process, the user can only select to re-register, promptly business can't realize seamless switching.
The implementation method of another kind of NGN seamless switching is to realize by mobile IP (Mobile IP) technology.At first between Access Network and IP Multimedia System (IP Multimedia Subsystem is called for short " IMS ") network by mobile IP technology, it is constant to keep user network layer IP address, promptly the user between Access Network when mobile its IP address constant.This requires relevant network routing node to possess mobile IP function, when the IMS terminal when roaming into new Access Network, after new Access Network obtains Care-of Address (Care-of-Address), can be Foreign Agent (ForeignAgent by new network control node, be called for short " FA ") to Control Node home agent (the Home Agent of original access network, be called for short " HA ") initiate mobile IP registration, make the IP message be routed to FA from the HA tunnel.Thus, when an access network moved to another Access Network, its IP message promptly was routed to new FA in network layer by HA at portable terminal, kept professional continuity, realized seamless switching.
But the method that realizes by mobile IP requires network support to move the IP function, and this proposes higher requirement to existing IP network infrastructure and agreement upgrading.In addition, because the broadcasting diffusion delay of the registration of IP network layer, new route is much larger than the handover delay index towards the cell phone system of connection mechanism, therefore such switching can't be supported the uninterrupted real-time requirement of real-time session Business Stream well.Simultaneously, because the changed course of the Media Stream of mobile IP is finished in network layer, the situation when this service quality for former and later two Access Networks of switching (Quality of Service is called for short " QoS ") is different will make new service link go wrong.At last, the still problem of a network internal that mobile IP can solve, but along with technical development, in case if operator's full-service operation, and popularizing of multimode terminal causes switching may occur between the Access Network not of the same race, and such switching is for mobile IP technology and inapplicable.
Summary of the invention
In view of this, main purpose of the present invention is to provide service switchover system and the method thereof in a kind of next generation network, make next generation network under the prerequisite that does not cause the network traffics bottleneck, support quick, the reliable seamless switching of the dialogue-based business between the multiple Access Network.
For achieving the above object, the invention provides the service switchover system in a kind of next generation network, comprise terminal, Access Network and service control point, described terminal inserts described next generation network by described Access Network, and by the business control of the realization of the service control point in the described next generation network to described terminal, described system also comprises the switching controls point
Wherein, described terminal also is used for triggering and handovers request to described service control point;
Described service control point also is used to report the described described switching controls point that handovers request to, and implements to finish professional the switching;
Described switching controls point is used to respond the described handoff request that described service control point reports, and judges whether to switch according to switching condition, and issues corresponding switching command to described service control point.
Wherein, described terminal can at least two session links of concurrent foundation.
In addition, described switching controls point also is used to manage switchover policy concentratedly, judges described switching condition, issues described switching command, and carries out Signalling exchange with described terminal, described service control point.
In addition, described terminal is weaker than new described Access Network owing to original described Access Network signal, thereby triggers described handoff request.
In addition, described terminal is lower than new described Access Network owing to original described Access Network priority, thereby triggers described handoff request.
In addition, described service control point is used for signaling to be controlled described Access Network and described terminal and sets up the new session link, removes former session link, implements to finish professional the switching.
In addition, described service control point is set up described new session link by notifying described terminal to make a call.
In addition, described service control point passes through to set up meeting at described Access Network, and notifies described former session both link ends to add meeting, sets up described new session link and connect.
In addition, described switching controls point can be single physical equipment, also can be to be distributed on the same physical equipment with other control points.
The present invention also provides the business switch method in a kind of next generation network, comprises step,
The A terminal triggers and handovers request to service control point, reports this to handover request to the switching controls point by this service control point;
The described switching controls point of B judges whether switching condition satisfies, and issues corresponding switching command to described service control point;
Described service control point of C and described terminal, the described switching command of the collaborative enforcement of Access Network.
Wherein, described steps A comprises following substep,
Described terminal monitors former Access Network signal power and is lower than predefined thresholding, triggers the described described service control point that handovers request to;
Described service control point reports the described described switching controls point that handovers request to.
In addition, described steps A comprises following substep,
Described terminal enters new Access Network and attempts successful connection, triggers the described described service control point that handovers request to;
Described service control point reports the described described switching controls point that handovers request to.
In addition, described step B comprises following substep,
Described switching controls point by with the Signalling exchange at described terminal or corresponding business control point, upgrade the state of described terminal;
Described switching controls point judges whether to start according to described switching condition and switches, and starts switching command to described service control point if then issue, and gives described service control point otherwise issue the refusal switching command.
In addition, described switching condition is including but not limited to one in the following condition or its combination in any: whether former Access Network signal is weak, whether described former Access Network priority is low, whether switchover policy satisfies.
In addition, described step C comprises following substep,
C1 notifies interdependent node and described terminal in the described Access Network, and finishes this switching flow when described service control point receives described refusal switching command;
C2 is when described service control point receives described startup switching command, and signaling controls described Access Network and described terminal is set up described new session link, if set up described new session link success, then enters step C3, otherwise enters step C4;
The described service control point signaling of C3 is controlled in the described Access Network interdependent node and described terminal and is removed described former session link, and session is switched to described new session, finishes this switching flow;
The described service control point of C4 notifies that interdependent node discharges the resource of described new session link in the described Access Network, and notifies described switching controls point and described terminal handoff failure, and described switching controls point carries out follow-up work.
In addition, described step C2 comprises following substep,
Described service control point is set up described new session link by notifying described terminal to make a call.
In addition, described step C2 comprises following substep,
Described service control point passes through to set up meeting at described Access Network, and notifies described former session both link ends to add meeting, sets up described new session link and connect.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, the present invention concentrates by switching controls point and handles handoff request and switching condition management, centralized control switching and switching condition judgement, implement the foundation of new session link in the switching and the dismounting of former session link by service control point, terminal and access network node cooperate to be finished; In the handoff procedure, trigger handoff request by terminal, and report the switching controls point by service control point, switching controls point is judged switching condition and is issued switching command, service control point is set up the new session link by Signalling exchange and is removed former session link, finishes professional seamless switching.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly by the centralized control and the processing of switching controls point, has realized the professional seamless switching on the universal significance, is convenient to function expansion and deployment;
By replacing of new session link and former session link, avoided Media Stream to assemble and the bottleneck of generation;
By the concurrent foundation of multiple session link, realized that the business between the Access Network of different technologies, different operators is switched;
By terminal and switching controls point setting and judgment mechanism for switching condition, make switchover policy more flexibly, more manageable.
Description of drawings
Fig. 1 is carrying and separated network model schematic diagram;
Fig. 2 converges the network model schematic diagram of realizing professional seamless switching by Media Stream;
Fig. 3 is according to the service switchover system schematic diagram in the next generation network of the first embodiment of the present invention;
Fig. 4 is the business switch method flow chart in according to a second embodiment of the present invention the next generation network.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Principle of the present invention is to realize professional seamless switching by two service link setting up new and old Access Network simultaneously.The Network switched system comprises service control point, switching controls point, terminal etc., at first need the handoff request that service control point can processing terminal, and can implement the foundation of new service link and the dismounting of old service link, secondly come centralized control to differentiate switching condition by introducing the switching controls point, also require portable terminal to possess when keeping a session at last and have the ability to set up another session.
When terminal is moved, initiatively initiate handoff request or when switching, handle request by service control point by pre-conditioned satisfied triggering, report the switching controls point.The place preserves the various switching conditions of each terminal at the switching controls point, and the switching controls point judges whether to satisfy switching condition, and whether switch at the informing business control point.During switching, service control point carries out new link establishment by each node of notifying whole Access Network, after new service link is set up, promptly notifies Access Network to remove original service link.In this course, keep continuously professional, promptly finish professional seamless switching.
In the first embodiment of the present invention, the service switchover system of the NGN network of supporting business seamless switching comprises following functional entity: in addition terminal, service control point, switching controls point also have the packet switching network in the existing network system, dissimilar Access Networks, the node of Access Network etc.
Wherein, terminal needs the function of enhancing, can concurrently set up two above sessions, when switching, matches with the controlled entity of network side, sets up new service link, removes old service link, realizes seamless switching.Concurrent a plurality of sessions processor resource to terminal of setting up has proposed requirement, development along with integrated circuit technique and computing technique, the current main-stream mobile terminal model, all possessed the hardware resource that this ability is arranged, only need do the simple software upgrading, add the ability of a plurality of thread process communication protocols, can realize the described concurrent enhancement function of setting up a plurality of sessions.Current high-end type has then possessed the concurrent ability of setting up a plurality of sessions, such as multi-module mobile terminal, and the service communication under can a plurality of different access modules of parallel processing.
Because professional switching has multiple mode, being not only because moving the wireless coverage cell signal cause dies down, also might be the condition of user preset, such as under the multiple Access Network and the situation of depositing, the user can set the professional more rich network of preferential selection, promptly needs professional the switching this moment.In a word, professional switchover policy can be more careful and flexible, for example according to the signal power, according to operator's priority, according to Access Network priority, according to various conditions such as time places, all can trigger professional the switching.Such as, for global system for mobile communications (Global System of Mobile, be called for short " GSM ") and WCDMA mobile communication system (Wideband Code Division Multiple Access, abbreviation " WCDMA ") dual-mode handset, be coated with GSM and WCDMA network and current service network at the same time when being GSM, in general, the user wishes to switch to the WCDMA network,, better service abundanter to obtain.
In order to realize the general switching on the universal significance, introduce the switching controls point in application layer, be used for centralized management and switch and switching condition.And service control point also needs to realize professional switching control function except finishing original service control function.Switching is initiatively initiated after judging trigger condition by terminal.Switching is presided over by service control point, and the passive realization of terminal is switched.
The required function that has of terminal comprises the concurrent ability of setting up many sessions, promptly can start and consult the ability of other sessions under the situation that a session has been set up.Obviously, terminal just must can be supported various session protocols, as supports many IP address, a plurality of media link to consult ability.Secondly, terminal also has active and triggers the ability of switching, and can detect handover triggering condition, and initiatively triggers switching.Such as the quality that receives wireless signal by continuous detection, when this index was lower than handoff threshold, whether then automatic search existed the area of wireless network coverage of same kind, if there is no, whether search exists in the area of wireless network coverage of other types again, selects new Radio Access Network then.Then, terminal also has the ability of passive switching, accepts the order from service control point or switching controls point, cooperates the instruction of network side to implement to switch.
The required function that possesses of service control point is except the functions such as control, triggering and route of the business of being responsible for having under its command the user, also wants the handoff request can processing terminal initiated, it reported the switching controls point, and receive the switching command of switching controls point.When implementing to switch, also want to control to set up new service link, remove old service link.Set up or remove the process of link, service control point need carry out Signalling exchange at whole Access Network, and the interdependent node of Access Network is sent instruction.The physical aspect of service control point can independently exist, and also can be integrated into other function servers.
The required function that possesses of switching controls point is promptly managed the switching condition of terminal concentratedly, preserve the default switchover policy of terminal, be responsible for renewal, and when service control point reports handoff request, judge, assign the order that allows or refuse to switch then and give service control point.Corresponding to physical aspect, the switching controls point can individualism, also can with the integrated use of other function servers.
The ability that Access Network need provide terminal to be linked into business network is made up of a lot of network nodes, and wherein part of nodes need cooperate access request or the handoff request of finishing processing terminal jointly with service control point or switching controls point, to realize switching.Access Network can be the Access Network that adopts different technologies, such as WLAN (wireless local area network) (Wireless Local Area Network is called for short " WLAN ") Access Network and GSM Access Network.May have overlapping region between the Access Network, in overlapping region, which Access Network is terminal can select to be connected to, and professional the switching promptly taken place.
Packet Based Network is used to provide the interconnected ability between network node, and the transfer capability of grouping message is provided, and the business that not perception is concrete realizes service bearer separately.
Fig. 3 shows the NGN network model, comprises the annexation of frame system and each functional entity of switched system.Terminal 301 is with terminal 302 professional two terminals that are connected takes place, insert Packet Based Network by Access Network 303 and Access Network 304 respectively, be subjected to service control point 305 and service control point 306 controls respectively, switching controls point 307 then is the functional entity that independent centralized management is switched, and it can carry out Signalling exchange with service control point.
When terminal 302 through moving the zone that moves to Access Network 308 from Access Network 304 owing to satisfy switching condition, such as a little less than the signal of Access Network 304 and terminal 302 can search the signal of Access Network 308, then terminal 302 will trigger professional handover event.Professional handoff request is reported to switching controls point 307 via service control point 306, issues switching command and give service control point 306 after switching controls point 307 is judged.Be responsible for implementing the foundation of link 310 and the dismounting of link 309 by service control point 306 then, finish seamless service and switch.
As seen in this process, service control point and switching controls point have the interaction flow of mutual control signaling; Mutual control Signalling exchange is arranged between service control point and the terminal; Also need to control alternately signaling between switching controls point and the terminal, when promptly terminal need be preset switchover policy, upgrade by switching controls point.
Fig. 4 shows the idiographic flow of business switch method according to a second embodiment of the present invention.Terminal in Access Network and another terminal in the opposite side Access Network are set up normal session connection.Before switching, the professional connection takes place between the terminal.
In step 401, the terminal in the Access Network has taken place to move or because some pre-conditioned needs of user or Virtual network operator switch in the new Access Network, has triggered handovering request to service control point.As previously mentioned, these conditions have a variety of.Such as, when terminal monitors the poor signal of former Access Network, initiatively trigger " the weak handoff request of signal ", this kind request is handled by Access Network in present wireless network substantially fully, service control layer not perception fully, and in the second embodiment of the present invention, this request directly is triggered to service control layer, and finally unifies to be triggered to the switching controls point and handle.Again such as, when terminal enters new Access Network coverage, trigger the request of access and attempt connection request, obtain and insert actions such as checking as the address, if attempt the connection request success, then trigger " switch may incident " to service control point, and service control point is responsible for that corresponding message is given to the switching controls point and is handled.
Then in step 402, when service control point receives from incidents such as handoff request incident a little less than the signal of Access Network transmission or switching possibility incidents, this Event triggered is arrived corresponding switching controls point.Promptly by service control point handoff request is reported to the switching controls point, the handoff request of the whole network is all concentrated by switching controls point and is handled.
Then in step 403, after the switching controls point receives trigger event from service control point, whether start switching according to the condition judgment that pre-sets, here the condition that presets can be the strategy that signal power, preferred operator, different tariff strategy and user preset are put, the perhaps combination of these conditions.The switching controls point returns startup or the refusal switching command is given service control point, if refusal switches, then enters in the step 404, otherwise enters step 405.
In step 404, after service control point was received the refusal switching command, service control point issued node and the terminal that " refusal switching command " gives Access Network again.Node and terminal cooperate the flow process that finishes this handoff request, and the feedback processing result gives service control point.To revise switching pre-conditioned etc. because of switching result failure such as terminal, feeds back to service control point.
In step 405, after service control point was received and started switching command, service control point need be set up an other session link of the terminal and the session other end, set up the process need service control point of link and the node and the terminal cooperation of Access Network and finished.The method of setting up new session link can be: at first transmitting order to lower levels is given terminal, require terminal initiatively according to the normal process call session other end, finish the foundation of new session link by the service control point of the session other end, this link uses terminal address in new Access Network and other related resources; Perhaps, service control point also can be controlled the network components that other can provide conferencing resource, sets up meeting, and sets up other session link for the terminal and the session other end by normal process, and controls its adding meeting.
Then in step 406, node in the Access Network or terminal, receive control command from service control point, promptly start switching command, then terminal need cooperate the order of service control point, the other session of call setup perhaps joins in certain meeting, and the feedback processing result gives service control point.
Then in step 407, service control point carries out relevant treatment according to node in the Access Network or terminal for the feedback result of setting up the new session link, if set up the link success, then to Access Network 2 and terminal, send the order of removing article one session, enter in the step 408; If set up link failure, then enter in the step 409.
In step 408, after node or terminal receive the order of removing former session link in the Access Network, discharge owing to the shared resource of former session link by Access Network 2 and terminal, terminal switches to session upper strata loaded service simultaneously and continues in the session 2 to handle, and feedback is removed results messages to service control point.If remove failure, then control Access Network 3 and all be released to and set up the resource that the new session link is distributed, and the service control point of the announcement session other end discharges the new session link circuit resource in the Access Network 1, continue to adopt original session link communication.If remove successfully, then the service control point of the announcement session other end is removed the resource of being distributed for former session link, and notice switching controls point has been finished switching, and the switching controls point carries out follow-up work, as writes down information such as current access module and state.
In step 409, service control point reports handoff failure to the switching controls point, and finish the release of this related resource that uses in switching, feed back handoff failure simultaneously and give node in terminal and the Access Network, keep the processing and the maintenance of original session link, discharge any resource that is used to set up new session link, and finish this switching.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (17)
1. the service switchover system in the next generation network, comprise terminal, Access Network and service control point, described terminal inserts described next generation network by described Access Network, and is realized the business of described terminal is controlled by the service control point in the described next generation network
It is characterized in that described system also comprises the switching controls point,
Wherein, described terminal also is used for triggering and handovers request to described service control point;
Described service control point also is used to report the described described switching controls point that handovers request to, and implements to finish professional the switching;
Described switching controls point is used to respond the described handoff request that described service control point reports, and judges whether to switch according to switching condition, and issues corresponding switching command to described service control point.
2. the service switchover system in the next generation network according to claim 1 is characterized in that, described terminal can at least two session links of concurrent foundation.
3. the service switchover system in the next generation network according to claim 1 and 2, it is characterized in that, described switching controls point also is used to manage switchover policy concentratedly, judges described switching condition, issues described switching command, and carries out Signalling exchange with described terminal, described service control point.
4. the service switchover system in the next generation network according to claim 3 is characterized in that, described terminal is weaker than new described Access Network owing to original described Access Network signal, thereby triggers described handoff request.
5. the service switchover system in the next generation network according to claim 3 is characterized in that, described terminal is lower than new described Access Network owing to original described Access Network priority, thereby triggers described handoff request.
6. the service switchover system in the next generation network according to claim 1 and 2 is characterized in that, described service control point is used for signaling to be controlled described Access Network and described terminal and set up the new session link, remove former session link, implements to finish professional the switching.
7. the service switchover system in the next generation network according to claim 6 is characterized in that, described service control point is set up described new session link by notifying described terminal to make a call.
8. the service switchover system in the next generation network according to claim 6 is characterized in that, described service control point passes through to set up meeting at described Access Network, and notifies described former session both link ends to add meeting, sets up described new session link and connect.
9. the service switchover system in the next generation network according to claim 1 and 2 is characterized in that, described switching controls point can be single physical equipment, also can be to be distributed on the same physical equipment with other control points.
10. the business switch method in the next generation network is characterized in that, comprises step,
The A terminal triggers and handovers request to service control point, reports this to handover request to the switching controls point by this service control point;
The described switching controls point of B judges whether switching condition satisfies, and issues corresponding switching command to described service control point;
Described service control point of C and described terminal, the described switching command of the collaborative enforcement of Access Network.
11. the business switch method in the next generation network according to claim 10 is characterized in that, described steps A comprises following substep,
Described terminal monitors former Access Network signal power and is lower than predefined thresholding, triggers the described described service control point that handovers request to;
Described service control point reports the described described switching controls point that handovers request to.
12. the business switch method in the next generation network according to claim 10 is characterized in that, described steps A comprises following substep,
Described terminal enters new Access Network and attempts successful connection, triggers the described described service control point that handovers request to;
Described service control point reports the described described switching controls point that handovers request to.
13. the business switch method according in each described next generation network in the claim 10 to 12 is characterized in that described step B comprises following substep,
Described switching controls point by with the Signalling exchange at described terminal or corresponding business control point, upgrade the state of described terminal;
Described switching controls point judges whether to start according to described switching condition and switches, and starts switching command to described service control point if then issue, and gives described service control point otherwise issue the refusal switching command.
14. the business switch method in the next generation network according to claim 13, it is characterized in that described switching condition comprises or its combination in any in the following condition: whether former Access Network signal is weak, whether described former Access Network priority is low, whether switchover policy satisfies.
15. the business switch method according in each described next generation network in the claim 10 to 12 is characterized in that described step C comprises following substep,
C1 notifies interdependent node and described terminal in the described Access Network, and finishes this switching flow when described service control point receives described refusal switching command;
C2 is when described service control point receives described startup switching command, and signaling controls described Access Network and described terminal is set up described new session link, if set up described new session link success, then enters step C3, otherwise enters step C4;
The described service control point signaling of C3 is controlled in the described Access Network interdependent node and described terminal and is removed described former session link, and session is switched to described new session, finishes this switching flow;
The described service control point of C4 notifies that interdependent node discharges the resource of described new session link in the described Access Network, and notifies described switching controls point and described terminal handoff failure, and described switching controls point carries out follow-up work.
16. the business switch method in the next generation network according to claim 15 is characterized in that, described step C2 comprises following substep,
Described service control point is set up described new session link by notifying described terminal to make a call.
17. the business switch method in the next generation network according to claim 15 is characterized in that, described step C2 comprises following substep,
Described service control point passes through to set up meeting at described Access Network, and notifies described former session both link ends to add meeting, sets up described new session link and connect.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100335788A CN1832438A (en) | 2005-03-08 | 2005-03-08 | Service switchover system of next network and its method |
| CN2005800013208A CN1898972B (en) | 2004-12-17 | 2005-12-19 | Method and system for maintaining conversation continuity |
| DE602005013281T DE602005013281D1 (en) | 2004-12-17 | 2005-12-19 | METHOD AND SYSTEM FOR HOLDING A SESSION CONTINUITY |
| PCT/CN2005/002240 WO2006063536A1 (en) | 2004-12-17 | 2005-12-19 | A method and system of holding session continuity |
| EP05820665A EP1827034B1 (en) | 2004-12-17 | 2005-12-19 | A method and system of holding session continuity |
| AT05820665T ATE425643T1 (en) | 2004-12-17 | 2005-12-19 | METHOD AND SYSTEM FOR MAINTAINING SESSION CONTINUITY |
| HK06109633.8A HK1089323A1 (en) | 2004-12-17 | 2006-08-30 | A method and system for holding session continuity |
| US11/649,022 US8625527B2 (en) | 2004-12-17 | 2007-01-03 | Method and system for maintaining session continuity when changes occur at the terminal during a session |
| US14/584,662 USRE47858E1 (en) | 2004-12-17 | 2014-12-29 | Method and system for maintaining session continuity when changes occur at the terminal during a session |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100335788A CN1832438A (en) | 2005-03-08 | 2005-03-08 | Service switchover system of next network and its method |
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| Publication Number | Publication Date |
|---|---|
| CN1832438A true CN1832438A (en) | 2006-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100335788A Pending CN1832438A (en) | 2004-12-17 | 2005-03-08 | Service switchover system of next network and its method |
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| Country | Link |
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| CN (1) | CN1832438A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009046644A1 (en) * | 2007-10-09 | 2009-04-16 | Huawei Technologies Co., Ltd. | A method and device for traffic flow switching |
| CN102264154A (en) * | 2010-05-26 | 2011-11-30 | 中兴通讯股份有限公司 | Method and system for controlling user service in backhaul network |
| CN102484825A (en) * | 2009-08-21 | 2012-05-30 | 株式会社Ntt都科摩 | Mobile communication method and radio access network device |
| CN102549978A (en) * | 2009-10-14 | 2012-07-04 | 华为技术有限公司 | Network selection method, network device and network system |
| CN102594646A (en) * | 2011-12-31 | 2012-07-18 | 成都市华为赛门铁克科技有限公司 | Switching method, switching device and transmission system of Internet protocol security tunnels |
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| CN110933710A (en) * | 2018-09-20 | 2020-03-27 | 海能达通信股份有限公司 | Voice communication control method and system |
| CN116419360A (en) * | 2023-06-06 | 2023-07-11 | 成都爱瑞无线科技有限公司 | Mobility management method, device and storage medium of general sense integrated system |
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- 2005-03-08 CN CNA2005100335788A patent/CN1832438A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009046644A1 (en) * | 2007-10-09 | 2009-04-16 | Huawei Technologies Co., Ltd. | A method and device for traffic flow switching |
| CN102484825A (en) * | 2009-08-21 | 2012-05-30 | 株式会社Ntt都科摩 | Mobile communication method and radio access network device |
| CN102484825B (en) * | 2009-08-21 | 2015-07-15 | 株式会社Ntt都科摩 | Mobile communication method and radio access network device |
| CN102549978A (en) * | 2009-10-14 | 2012-07-04 | 华为技术有限公司 | Network selection method, network device and network system |
| CN102549978B (en) * | 2009-10-14 | 2015-03-25 | 华为技术有限公司 | Network selection method, network device and network system |
| CN102264154B (en) * | 2010-05-26 | 2016-12-07 | 中兴通讯股份有限公司 | Customer service control method in a kind of backhaul network and system |
| CN102264154A (en) * | 2010-05-26 | 2011-11-30 | 中兴通讯股份有限公司 | Method and system for controlling user service in backhaul network |
| CN102594646A (en) * | 2011-12-31 | 2012-07-18 | 成都市华为赛门铁克科技有限公司 | Switching method, switching device and transmission system of Internet protocol security tunnels |
| CN102594646B (en) * | 2011-12-31 | 2015-11-25 | 华为数字技术（成都）有限公司 | A kind of internet protocol secure tunnel changing method, device and transmission system |
| CN110741683A (en) * | 2017-11-10 | 2020-01-31 | Oppo广东移动通信有限公司 | Network service implementation method, device, computer equipment and storage medium |
| CN110741683B (en) * | 2017-11-10 | 2020-12-11 | Oppo广东移动通信有限公司 | Network service implementation method, device, computer equipment and storage medium |
| CN108519612A (en) * | 2018-03-01 | 2018-09-11 | 千寻位置网络有限公司 | Network RTK switching methods |
| CN110933710A (en) * | 2018-09-20 | 2020-03-27 | 海能达通信股份有限公司 | Voice communication control method and system |
| CN110933710B (en) * | 2018-09-20 | 2023-01-17 | 海能达通信股份有限公司 | Voice communication control method and system |
| CN116419360A (en) * | 2023-06-06 | 2023-07-11 | 成都爱瑞无线科技有限公司 | Mobility management method, device and storage medium of general sense integrated system |
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