CN101330713A

CN101330713A - Apparatus for coordinating guiding network, wireless network as well as method for switching and attaching user equipment

Info

Publication number: CN101330713A
Application number: CNA2007100286884A
Authority: CN
Inventors: 周艳; 胡伟华; 袁立平; 吴问付; 叶文林
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-06-19
Filing date: 2007-06-19
Publication date: 2008-12-24
Also published as: WO2008154836A1

Abstract

The invention discloses a wireless network, which comprises wireless communication systems of different standards. In addition, the wireless network comprises a different network coordinating device which is used for the coordination and switching between wireless communication systems of different standards or the coordination and process of a plurality of attachments to user equipment. The invention further discloses a corresponding user equipment switching and attachment method, which can provide convenient intersystem intercommunication, attachment, and optimized switch performance on the premise of keeping the access system standards developing independently and reducing the cross coupling.

Description

Rete mirabile conditioning unit, wireless network and subscriber equipment switch and adherence method

Technical field

The present invention relates to wireless communication technology field, in particular, the present invention relates to a kind of rete mirabile conditioning unit, wireless network and subscriber equipment and switch and adherence method.

Background technology

Wireless communication technology develop rapidly at present, for standard with coordinate the communication technology of industrialization, international and domesticly set up various normal structures, for example, international standard formulation tissue pocket is drawn together:

Third generation project partnership (3GPP, The 3rd Generation Project Partnership), third generation project partnership 2 (3GPP2, The 3rd Generation Project Partnership 2), whole world microwave access intercommunication (WiMAX, World Interoperability for Microwave Access) and wireless local access network (WLAN, Wireless Local Access Network) normal structure such as, described various normal structure has all been worked out the wireless communication standard of its standard and definition separately, how between the wireless communication system of described various criterion, to realize melting altogether intercommunication, it is the focus that industry is paid close attention to, for example, System Architecture Evolution (the SAE that the research and development of 3GPP next stage is at present worked out, System ArchitectureEvolution) network, it promptly is a framework of considering the multiple network technological incorporation, the user can insert the 3GPP core network by the 3GPP connecting system, also can pass through non-3GPP connecting system (for example: WiMAX, WLAN or the like) and insert the 3GPP network.

The core net of SAE mainly comprises Mobility Management Entity (MME, Mobility ManagementEntity), gateway (S-GW, Serving Gateway) and grouped data network gateway (P-GW, PDN Gateway) three logic function modules, MME wherein is the mobile management module, be responsible for the mobile management of chain of command, comprise the management of MM Context and mobile status, distributing user temporary identity sign, safety function and session management etc.; S-GW is the anchor point between Long Term Evolution (LTE) connecting system of 2G/3G and 3GPP Access Network, and roaming scence is visited the anchor point that ground S-GW can bear multiple connecting system down, comprise the switching between 3GPP, non-3GPP, S-GW also is a user entity simultaneously, be responsible for initiating paging for downlink data under the idle condition, IP bearing parameter and the interior routing iinformation of network etc. are preserved in management; P-GW serves as the user's face anchor point between different access systems, has interface with PCRF.The Non-3GPP connecting system can insert P-GW, but under roaming condition, each entity logic function of SAE network internal is divided the progress along with SAE (the packet domain core network network after the evolution that now renames, EPC:Evolved Packet Core) agreement, may adjust to some extent.

At present to realize melting altogether the problem of a key in the intercommunication be to realize that subscriber equipment switches between the rete mirabile system of various criterion in the rete mirabile system of various criterion, be predetermined before the switching Target cell, in advance authentication, in advance consulting service quality, to set up carrying in advance be to reduce the key link of handoff procedure service outage duration and can effectively promote success rate for switching.。

For this reason, industry has proposed the scheme at the MME of 3GPP system and non-3 GPP system increase interface, be that MME has all relevant carrying and safe context information, equally, MME can obtain Radio Access Network (RAN, Radio Access Network) relevant information and be handed down to subscriber equipment by source.Otherwise non-3 GPP system can provide the information of equity to MME equally.Like this, interface by MME and non-3 GPP system can obviously reduce service outage duration, but the scheme of described increase MME and Non-3GPP intersystem interface can influence all MME and non-3GPP controlled entity, and need 3GPP and non-3GPP network signal close coupling, cause the independent definition and the development of different access technologies standard to be restricted.

Summary of the invention

The technical problem that the embodiment of the invention solves provides a kind of rete mirabile conditioning unit, wireless network and subscriber equipment and switches and adherence method, each connecting system standard independent development be can realize keeping, intercommunication between the system that provides convenience, the performance of handoffs that adheres to and optimize reduced under the cross-linked prerequisite.

For addressing the above problem, a kind of wireless network of the embodiment of the invention comprises in addition, also comprising the wireless communication system of various criterion:

The rete mirabile conditioning unit is used for Coordination Treatment or subscriber equipment that subscriber equipment switches and adheres to Coordination Treatment more between the wireless communication system of described various criterion.

Correspondingly, a kind of rete mirabile conditioning unit of the embodiment of the invention comprises:

Switch the Coordination Treatment unit, be used for the switching Coordination Treatment that subscriber equipment switches between the wireless communication system of various criterion.

Correspondingly, a kind of subscriber equipment of the embodiment of the invention comprises switching treatmenting unit, and described switching treatmenting unit comprises:

The switching target generation unit is used to scan rete mirabile system adjacent area and measures, and determines rete mirabile system switching target;

Handoff request message encapsulation unit is used for rete mirabile aims of systems sub-district and/or the rete mirabile system authorization data information that will switch, and/or is encapsulated in the handoff request message for finishing the required rete mirabile system supplymentary information of switching;

The handoff request message sending unit is used for described handoff request message is sent to the source wireless communication system.

Adhere to the Coordination Treatment unit more, adhere to Coordination Treatment when being used for subscriber equipment and adhering to more.

Correspondingly, the changing method of a kind of subscriber equipment of the embodiment of the invention comprises:

Subscriber equipment sends handoff request message to source wireless communication system controlled entity;

Source wireless communication system controlled entity sends handoff request message to the rete mirabile coordination entity;

Target Cell Identifier in the handoff request message that the rete mirabile coordination entity is sent according to source wireless communication system controlled entity is known the controlled entity address of Target Wireless communication system and Target Wireless communication system;

The rete mirabile coordination entity directly or by the controlled entity of Target Wireless communication system is initiated authentication to authentication server according to the authorization data of subscriber equipment in the Target Wireless communication system; And after authentication is passed through, send to Target Wireless communication system controlled entity and to carry handoff request message Target Cell Identifier and new authentication/bearer context, after the signaling conversion;

Target Wireless communication system controlled entity returns switching response message to the rete mirabile coordination entity;

The rete mirabile coordination entity is carried the conversion negotiation, the handoff response after source wireless communication system controlled entity sends the signaling conversion;

Source wireless communication system controlled entity sends switching command to subscriber equipment, and subscriber equipment switches to the Target Wireless communication system.

The rete mirabile coordination entity is according to the authorization data of subscriber equipment in the Target Wireless communication system, and direct or signaling conversion is initiated authentication by the controlled entity of Target Wireless communication system to authentication server; And after authentication was passed through, the signaling conversion sent the handoff request message of carrying Target Cell Identifier and new authentication/bearer context to Target Wireless communication system controlled entity;

Target Wireless communication system controlled entity is set up the carrying of subscriber equipment in the Target Wireless communication system;

The switching response message of rete mirabile coordination entity after source wireless communication system controlled entity sends the signaling conversion;

Correspondingly, a kind of user's device attaching method of the embodiment of the invention comprises:

Subscriber equipment initiates to adhere to request to wireless communication system controlled entity to be adhered to;

It is multimode terminal or multiple access user that wireless communication system controlled entity to be adhered to detects described subscriber equipment, and notice rete mirabile coordination entity carries out adhering to authentication more;

The rete mirabile coordination entity initiates to adhere to authentication according to the subscription authentication parameter to authentication server more, if adhere to authentication passes through more, rete mirabile coordination entity notice communication system controlled entity authentication to be adhered to is passed through;

The subsequent attachment flow process is finished in communication system controlled entity control to be adhered to.

Subscriber equipment initiates to adhere to request to communication system controlled entity to be adhered to;

It is multimode terminal or multiple access user that communication system controlled entity to be adhered to detects described subscriber equipment, notice rete mirabile coordination entity is carried out authentication, if authentication is passed through, the rete mirabile coordination entity checks whether subscriber equipment adhered in other communication systems, and in check result when being, obtain former data anchor point information and/or original business information of adhering to communication system to the former communication system controlled entity that adheres to;

Communication system controlled entity to be adhered to is set up data channel according to the described data anchor point information of obtaining and/or original business information, continues to finish and adheres to.

According to embodiments of the invention, subscriber equipment switches between the wireless communication system of various criterion or when adhering to, the Coordination Treatment that Coordination Treatment of switching by a rete mirabile conditioning unit or subscriber equipment adhere to more, both can realize that subscriber equipment switched or adheres between the rete mirabile communication system of various criterion, the rete mirabile communication system independent development that can keep each various criterion simultaneously, and the coordination by the rete mirabile conditioning unit can keep business continuance, optimize performance of handoffs, solve subscriber equipment and frequently between net, adhere to the problem that to know mutually, change less subscriber equipment and each network communicating system.

Description of drawings

Fig. 1 is a kind of specific embodiment schematic diagram of wireless network of the present invention;

Fig. 2 is the specific embodiment interface schematic diagram of rete mirabile coordination entity of the present invention and various criterion communication system;

Fig. 3 is another specific embodiment interface schematic diagram of rete mirabile coordination entity of the present invention and various criterion communication system;

Fig. 4 is the first specific embodiment Message Processing flow chart of method for user device switching of the present invention;

Fig. 5 is the second specific embodiment Message Processing flow chart of method for user device switching of the present invention;

Fig. 6 is a kind of Message Processing flow chart of user's device attaching method of the present invention;

Fig. 7 is the structural representation of rete mirabile conditioning unit first specific embodiment of the present invention;

Fig. 8 is the specific embodiment structural representation of switching Coordination Treatment shown in Figure 7 unit;

Fig. 9 is the structural representation of a kind of specific embodiment of subscriber equipment of the present invention;

Figure 10 is the second specific embodiment structural representation of rete mirabile conditioning unit of the present invention;

Figure 11 is the specific embodiment structural representation that adheres to the Coordination Treatment unit shown in Figure 10 more.

Embodiment

With reference to figure 1, a kind of specific embodiment of wireless network of the present invention, described wireless network comprises the wireless communication system of various criterion, the wireless communication system of described various criterion can be the 3GPP communication system, the 3GPP2 communication system, WiMAX communication system and/or WLAN communication system, and other forms of wireless communication system, in the present embodiment with the first standard wireless communication system and the second standard wireless communication exemplary system, can comprise independent function entity in (between for example described first standard wireless communication system 1 and the second standard wireless communication system 2) between the wireless communication system of described various criterion: rete mirabile conditioning unit 12, the conditioning unit of rete mirabile described in the present embodiment 12 can be used for Coordination Treatment or subscriber equipment that subscriber equipment switches and adhere to Coordination Treatment more between the wireless communication system of described various criterion.Coordination by described rete mirabile conditioning unit, can carry out rete mirabile switching and the rete mirabile intersection of subscriber equipment between the wireless communication system of described various criterion adheres to, the rete mirabile system that can solve described various criterion is independent development both, and the problem of handover optimization, and optimize adhere between frequent net can't be mutual problem.

For convenience of description, below the rete mirabile conditioning unit also can the rete mirabile coordination entity be matched, in addition, it promptly is that subscriber equipment switches between the wireless communication system of various criterion that rete mirabile switches, should be appreciated that described statement only is to be used to describe clear, and is not used in the claim scope of the present invention that limits.

The entity morphology of described rete mirabile coordination entity also can be positioned at or be integrated on a certain functional entity of wireless communication system of a certain standard, for example described rete mirabile coordination entity form can be the Mobility Management Entity that is positioned at or is integrated in described 3GPP communication system, or serving GPRS support node, or the determination point of the access service network gateway of described WiMAX communication system, or the controlled entity of intercommunication in controlled entity IAD in the described 3GPP2 communication system or the described WLAN communication system, and other forms that can directly deduce thus, repeat no more here.

Need illustrate, described rete mirabile coordination entity is for the communication system of various criterion, interface definition that can adaptive correspondence, for example the communication system side to the 3GPP standard can provide S10, S11 interface, can provide R4 or R7 interface to WiMAX communication system side, the interface of the corresponding definition of 3GPP2 can be provided to 3GPP2 communication system side, WLAN can be provided the interface of relevant controlled entity to WLAN communication system side equally.

For example, with reference to figure 2, divide at S-GW and ASN GW and to build under the situation, described rete mirabile coordination entity is by Interface R4 (when the authentication entity of the similar independent ASN GW of rete mirabile coordination entity) and ASNGW intercommunication, or by R7 interface (being positioned at the DP entity of an ASN GW when the rete mirabile coordination entity).Use the Interface R4 intercommunication between S-GW and the ASN GW.Or the interface intercommunication (the new interface title of S2 or the follow-up definition of SAE) of using SAE to define.S-GW carries out the carrying conversion before and after switching, and transmits data and give ASN GW.Carry out intercommunication by S11 interface or Interface R4 (or same-action such as rise redetermination interface) between rete mirabile coordination entity and the S-GW.

In addition, for example, with reference to figure 3, build jointly at S-GW and ASN GW, described rete mirabile coordination entity can be passed through S11 or R4 or R7 interface and S-GW/ASN GW intercommunication, maybe can pass through Interface R4 or R7 interface and other ASN GW intercommunications, by S10 interface and MME intercommunication.The benefit that S-GW/ASN GW builds jointly is to save the tunnel (when ASN GW inserts P-GW by S-GW) between S-GW and the ASN GW, or save S-GW to the mobile Internet Protocol (MIP) of ASN GW re-register/tunnel rebulids process (as S-GW and ASN GW during all by MIP access P-GW and intercommunication), and make S-GW can unify multiple access (3GPP, WiMAX), similarly build jointly can further expand to and build together, build together with WLAN ePDG with 3GPP2AGW.When P-GW and S-GW build jointly, and above-mentioned packet domain gateway (P-GW, S-GW, ASN GW, AGW ePDG) has the unified form of building jointly thereupon.

In addition, need illustrate, described rete mirabile coordination entity is in using related various communication systems, needed ID of addressable or IP address, and the IP address of described rete mirabile coordination entity or addressing system (ID or etc. the addressing system of same-action) can be disposed by related network elements (for example, MME/ASN GW and similar solid).Related network elements finds that the rete mirabile coordination entity is arranged, then can carry out rete mirabile and switch by the rete mirabile coordination entity, otherwise, can adopt other modes to switch or initiate to insert again at new network by terminal; If rete mirabile coordination entity fault, related network elements can directly return handoff failure.

Realize the method that the subscriber equipment rete mirabile switches with concrete network environment explanation by described rete mirabile coordination entity below.

With reference to figure 4, provide S-GW and ASN GW in the present embodiment and be the rete mirabile that the non-3GPP gateway branch of representative builds and switch the Message Processing flow process.Non-3GPP gateway comprises in packet domain gateway A SN GW in the WiMAX network (the then corresponding unification of ASN GW and BS unification is entity afterwards), the 3GPP2 network packet domain gateway A GW, and (the part flow process is finished by BS among the 3GPP2, to function distribute and flow process have a small amount of different, but do not influence essence of the present invention), packet domain gateway ePDG among the WLAN.Wherein the label back adds s and represents interface among the SAE, the label back adds r and represents interface among the WiMAX, eNodeB can refer to ASNGW+BS, the MME that BS or radio network controller (RNC), ASN GW can refer to WiMAX ASN unification form and can refer to SGSN among the figure, P-GW can refer to GGSN, S-GW can refer to the part of functions of SGSN or GGSN, and the concrete Message Processing flow process of switching is as follows:

S101s:UE reports handoff request message, carries different aims of systems switching cell information and/or terminal different system authentication parameter in the described handoff request message and/or for finishing the required rete mirabile system supplymentary information of switching.

S102s:eNodeB judges that definite different aims of systems sub-district is a switching target, handoff request message is sent to MME, carry different aims of systems switching cell information and/or the different system of terminal authentication parameter in the described handoff request message, described handoff request message can utilize former interface to have message, for example Relocation Request message or other alternative message.

Need illustrate, if different system and native system authentication parameter are identical, or can directly draw in the conversion of rete mirabile coordination entity, then the user does not need to report this parameter again to source wireless communication system controlled entity (the wireless communication system controlled entity of source described in the present embodiment is MME), and UE also can directly report handoff request message to give MME among described S101, the S102.

S103s:MME finds that Target cell does not belong to this communication system, send handoff request message to the rete mirabile coordination entity, carry different aims of systems sub-district, the different system of terminal authentication parameter, bearer context in the message, and switch indicating information is former meaningful, described handoff request message can be the existing message of former interface, as Forward Relocation Request message or other alternative message;

S104: the rete mirabile coordination entity has following processing in this step:

A: according to Target Cell Identifier, know the destinations traffic system, and obtain destinations traffic system controlled entity address, for example parse the ASN GW address of WiMAX.Resolving can abide by that domain name analysis system (DNS) that the destinations traffic system stipulated is resolved or other play the flow process of reciprocity analytic function.

Wherein switching target small area can obtain by following optional mode:

Mode 1:UE belongs to bimodulus or multimode terminal, and oneself searches for rete mirabile, and reports different aims of systems sub-district.Current communication system is done switch decision according to the candidate cell in the native system, if the suitable candidate cell in the no native system, or handoff algorithms and switching law are judged and are enabled different aims of systems sub-district, or think that the candidate cell that UE reports is a prioritization criteria, then carry out different system authentication or seek pre-authentication before the control network element address switches under the different system cell by the rete mirabile coordination entity by the rete mirabile coordination entity.

The Target cell that UE provides different system to switch.Network side is changed very little, UE is delivered to eNodeB, be delivered to MME, be delivered to Sig Border, or UE is delivered to BS, is delivered to ASN GW, be delivered to Sig Border, or UE is delivered to BS, is delivered to Sig Border and only is transparent to the rete mirabile coordination entity by a cell, can be carried in the handoff request message or incidentally in other message.

Mode 2:MME or eNodeB are by disposing the adjacent cell that obtains and different system is provided, and perhaps, ASN GW or BS are by disposing the adjacent cell that obtains and different system is provided, the auxiliary web search that carries out.Or comprehensive multiple metrical information, carry out choosing of switching target small area at Radio Access Network.

Mode 3: network side independence Topology Management entity is according to terminal physical position information and network topology structure and physical location mapping relations, and the adjacent cell that issues different system by current system is given current system.Accessory terminal carries out web search and selects.

In addition, the also optional b of comprising: the rete mirabile coordination entity obtains the authentication parameter of UE in goal systems according to the information translation of UE in origin system, when partial parameters lacks, can use configuration data to carry out systematicness based on the isomerous network communication terms of agreement and replenish.When UE has reported different system authentication parameter, take the parameter that UE reports.

The rete mirabile coordination entity can comprise WiMAX Authenticator entity function, and is responsible for the request authentication.When the rete mirabile coordination entity is directly born the authentication entity function, the rete mirabile coordination entity is to local subscribed services device (HSS Home Subscriber Server) or authentication, mandate, charging (server) (AAA, Authentication Authorization Accounting) request authentication and obtain subscription data in the destinations traffic system is for example carried out cell by existing protocols such as Diameter, MAP (MAP) agreements and is replenished to expand and finish.Here repeat no more.

When the rete mirabile coordination entity is not directly born the authentication entity function, can be according to the message of source network, signaling is converted to the message of destinations traffic system, and authentication is carried out in request target communication system controlled entity address (otherwise ASN GW or MME).

In addition, the optional c of comprising: the rete mirabile coordination entity need be carried out conversion process to carrying.System before switching is in the system of switching back, because the difference of carrying granularity possibly can't keep original carrying in the handoff procedure one by one.If carrying is identical before and after switching, then can use the mode of direct correspondence.If carrying is different before and after switching, then can adopt and switch the back and use at UE or at the thick bearing mode of UE IP address, be that a thick carrying is used in the destinations traffic system in whole UE or UE IP address, there is not finer carrying to distinguish according to QoS, can guarantee the success of switching like this, but can't accurately guarantee the QoS that each carrying is original, and if disapprove the carrying conversion, then can independently set up new bearer in new system, or return failure information by the destinations traffic system.

S105r: the rete mirabile coordination entity uses the interface of destinations traffic system to communicate by letter with the target control entity after the addressing of target control entity, authentication, carrying conversion are passed through.The rete mirabile coordination entity uses R4 or R7 interface to communicate by letter with WiMAX ASN GW in the present embodiment, (former interface has this message to express handoff request message, example such as MOB_HO-IND or other alternative message), be carried at new switch contexts, the bearer context of goal systems.

Need explanation, if when not having authentication among the step S104 and getting subscription data, then this step needs authentication and gets subscription data, and subscription data can comprise P-GW address and other data of protocol definition.

Optionally, S106r: the acquisition strategy of target control entity and control (PCC) rule of chargeing, multiple possibility mode is arranged in for example current standard, can pass through P-GW or S-GW or visit ground strategy and charging control rule function (vPCRF) and obtain.

S107r: the target control entity judges whether to accept this handoff request, and the retrieval system switching response message during specific implementation, can utilize original interface message to return switching response message, for example R4HO_Cnf or other alternative message to the rete mirabile coordination entity;

S108r or S108s: think and the execution carrying to change if the rete mirabile coordination entity is judged, then send the order that conversion is carried in requirement, and carry user's face switch data forwarding gap marker that the judgement of target control entity distributes to S-GW.

S109r or S109s:S-GW receive the carrying conversion command of rete mirabile coordination entity, carry out destinations traffic system side bearer context relevant above the S-GW with UE foundation and with the corresponding relation of origin system bearer context, comprise the up-downgoing forwarding switch data forwarding carrying of carrying and harmless switching needs, return the switch data forwarding gap marker that S-GW distributes then.

S110s: the rete mirabile coordination entity is used the agreement of handover source communication system, transmit the switching response message of destinations traffic system and give MME, the switch data that portability S-GW distributes in the described response message is transmitted gap marker, specifically can utilize former interface to have message, issue as Forward Relocation Response or other alternative message.

S111s:MME issues switching command and gives eNodeB, specifically can utilize former interface to have message, uses Relocation Command or other alternative message to issue switching command as the MME-eNodeB interface, and eNodeB can start the switch data forwarding process.

S112s:eNodeB issues switching command, can utilize former interface to have message, issues switching command notice UE as eNodeB by Handover Command or other alternative message.

The switch data forwarding process that S113s, S113r: step S111s triggers, eNodeB forwards the data to S-GW (using the source communication interface standard), and S-GW is forwarded to ASN GW (using the target side communication interface standard).

The new net of S114:UE incision target side;

S115r, S116s: switching is finished indication and is forwarded to source MME by the rete mirabile coordination entity from the new net of target side; Specifically can utilize the existing forwards of former interface, for example WiMAX side example such as R4HO_Complete or other alternative forwards, 3GPP side example such as other alternative forwards of Forward RelocationComplete message.

S117r, S118: the specified user's face of the target control entity that switches to sends the tunnel and updates message to S-GW switching up-downgoing data channel to target side (optional renewal P-GW mainly is that whether needs are known according to P-GW).

In the above-mentioned steps, relate to the user and carry processing, can be pre-established by before the rete mirabile coordination entity is returned switching response message, also comprise the execution switching carrier at step S107r Target Wireless communication system controlled entity; And carrying is handled in the correlation step behind follow-up S108r or the S108s, and the rete mirabile coordination entity is auxiliary to be set up switch data and transmit the conversion of passage equivalent-load and handle through consultation; When source end communication system controlled entity sends switching command to subscriber equipment, and the indication related entities transmits passage by switch data and transmits the packet that switches etc., after the source communication system discharges data channel according to original flow process, can finish handoff procedure.

Need illustrate that in system and the switching back system, the system of signaling has difference before switching.The signaling conversion is not limited to the corresponding conversion of above-mentioned signaling, promptly may adjust signaling conversion according to new scene, when signaling status can't be fully at once, the rete mirabile coordination entity can increase function and realize state exchange, perhaps directly return handoff failure, abandon the rete mirabile switching flow.

In addition, need illustrate, if switch oppositely, promptly by WiMAX incision LTE, but or in other system also similar application, flow process was similar when S-GW built together to ASN GW, statement no longer separately, and said process is representative with normal switching flow, is similarly for the principle of unusual flow process such as handoff failure, and the rete mirabile coordination entity can be done the signaling conversion of unusual flow process by means of original system.

With reference to figure 5, present embodiment is switching target side system carrying switching Message Processing flow process newly-built, that do not change by S-GW, with aforementioned embodiment illustrated in fig. 4 different, the main variation of present embodiment is after step S106r, newly-increased S106A step: target control entity and S-GW, P-GW set up new bearer, and S-GW can be different.Remove step S108, S109 rete mirabile coordination entity to the step that S-GW issues the carrying conversion, remove the step that step S113 transmits data.Action and parameter in all the other steps slightly change, and remove carrying conversion related content and switch data and transmit the passage relevant parameter.

S101s:UE reports handoff request message, carries different aims of systems switching cell information and/or terminal different system authentication parameter in the described handoff request message and/or for finishing the required rete mirabile system supplymentary information of switching.。

Need illustrate, if rete mirabile system and native system authentication parameter are identical, or can directly draw in the conversion of rete mirabile coordination entity, then the user does not need to report this parameter again to source wireless communication system controlled entity (the wireless communication system controlled entity of source described in the present embodiment is MME), and UE also can directly report handoff request message to give MME among described S101, the S102.

S104: the rete mirabile coordination entity has following work in this step:

A: according to Target Cell Identifier, know the destinations traffic system, and obtain destinations traffic system controlled entity address, for example parse the ASN GW address of WiMAX.Resolving can be abideed by dns resolution or other flow processs that plays reciprocity analytic function that the destinations traffic system has stipulated.

Wherein switching target small area can obtain by following optional mode:

The Target cell that UE provides different system to switch.Network side is changed very little, UE is delivered to eNodeB, be delivered to MME, be delivered to the rete mirabile coordination entity, or UE is delivered to BS, is delivered to ASN GW, be delivered to the rete mirabile coordination entity, or UE is delivered to BS, is delivered to the rete mirabile coordination entity and only is transparent to the rete mirabile coordination entity by a cell, can be carried in the handoff request message or incidentally in other message.

Mode 2:MME or eNodeB are by disposing the adjacent cell that obtains and different system is provided, and perhaps, ASN GW or BS assist and carry out web search, and auxiliary UE carry out switch decision by disposing the adjacent cell that obtains and different system is provided.

The rete mirabile coordination entity can comprise WiMAX Authenticator entity function, and is responsible for the request authentication.When the rete mirabile coordination entity is directly born the authentication entity function, the rete mirabile coordination entity is to HSS or AAA request authentication and obtain subscription data in the destinations traffic system, for example carries out cell by existing protocols such as Diameter, MAP and replenishes expansion and finish.Here repeat no more.

S105r: the rete mirabile coordination entity uses the interface of destinations traffic system to communicate by letter with the target control entity after the addressing of target control entity, authentication are passed through.The rete mirabile coordination entity uses R4 or R7 interface to communicate by letter with WiMAX ASN GW in the present embodiment, (former interface has this message to express handoff request message, example such as MOB_HO-IND or other alternative message), be carried at new switch contexts, the bearer context of goal systems.

Alternatively, S106r: the target control entity obtains the PCC rule, for example by P-GW or S-GW or vPCRF acquisition.

S106A: target control entity and S-GW, P-GW set up new bearer, and S-GW can be different, and P-GW can keep the source carrying.

S107r: the target control entity judges whether to accept this switch indicating information, and the retrieval system handoff response gives the rete mirabile coordination entity, and for example R4HO_Cnf or other alternative message are returned switching response message.

S110s: the rete mirabile coordination entity is used the agreement of handover source communication system, transmits the switching response message of destinations traffic system and gives MME, specifically can utilize former interface to have message, issues as Forward RelocationResponse or other alternative message.

S111s:MME issues switching command and gives eNodeB, specifically can utilize former interface to have message, uses Relocation Command or other alternative message as the MME-eNodeB interface.

S112s:eNodeB issues switching command, can utilize former interface to have message, passes through Handover Command or other alternative message informing UE as eNodeB.

The new net of S114:UE incision target side;

The source system discharges data channel according to original flow process, finishes handoff procedure.

Need illustrate, if switch oppositely, promptly by WiMAX incision LTE, but or in other system also similar application, and said process is representative with normal switching flow, principle for unusual flow processs such as handoff failures is similarly, and the rete mirabile coordination entity can be done the signaling conversion of unusual flow process by means of original system.

With specific embodiment attachment flow is provided the example explanation below.

With reference to figure 6, MME can just be moved to the rete mirabile coordination entity with the authentication body in the present embodiment when finding that the explanation of dual-mode terminal or terminal is adhered to as the multiple access user certainly, and in follow-up flow process, can directly obtain subscription data, or obtain data channel from the rete mirabile coordination entity and whether need to set up to recover professional information from the rete mirabile coordination entity.Wherein the address of rete mirabile coordination entity disposes.In addition, with aforementioned, the label back adds s and represents interface among the SAE in the present embodiment, and the label back adds r and represents interface among the WiMAX.ENodeB can refer to ASN GW+BS, the MME that BS or RNC, ASN GW can refer to WiMAX ASN unification form and can refer to SGSN among the figure, and P-GW can refer to GGSN, and S-GW can refer to the part of functions of SGSN/GGSN.

Concrete Message Processing flow process is as follows:

S201s, S202s:UE adhere to from LTE, report from as multimode terminal, or report from as multiple access user modes such as () indicating bits.

S203s:MME knows that the user is multimode terminal or multiple access user, then directly notifies the rete mirabile coordination entity to carry out adhering to authentication more, simultaneously the authentication desired parameters of UE is delivered to the rete mirabile coordination entity.

S204: the rete mirabile coordination entity is obtained the multisystem subscription data to authentication server (in the present embodiment for example HSS or AAA) request authentication.

S205s: authentication is passed through, and HSS or AAA give MME with corresponding authentication context transfer, or only notify the MME authentication to pass through.

S206: the subsequent attachment flow process is finished in communication system controlled entity MME to be adhered to control, and can indicate to S-GW user and relate to many nets, and many nets anchor point be arranged.

Subsequent step and preceding step can independently be carried out, and do not rely on and adhere to more, and be specific as follows:

S207r: when the user inserts ASN GW from WiMAX, report from as multimode terminal, or report from as multiple access user modes such as () indicating bits.

S208r:ASN GW finds that the user is many network users, then to rete mirabile coordination entity request contexts, simultaneously the authentication desired parameters of UE is delivered to the rete mirabile coordination entity, and notice rete mirabile coordination entity is carried out authentication.The rete mirabile coordination entity can this locality judges whether that the WiMAX authentication passes through.If can not locally judge, then to HSS/AAA request authentication.

S209s: the rete mirabile coordination entity judges that whether the user is once in other network attachment mistakes, and in check result when being, obtain former data anchor point information and/or original business information of adhering to communication system to the former communication system controlled entity that adheres to, for example, if find in other network attachment mistakes, the request that then sends is to map network controlled entity (being MME in the present embodiment), and whether inquiry P-GW address and/or S-GW address have business to wait to set up information such as data path.MME provides response.The rete mirabile coordination entity also can be done some data auxiliary records.

S210r: rete mirabile coordination entity authentication is passed through, and the authentication context is notified to ASN GW.

S211s: have business to wait to set up if transmit, then ASN GW obtains PCC to P-GW, sets up data channel (the wherein optional participation of S-GW PCC acquisition process), otherwise only sets up default bearer by normal attachment flow.

In addition only when adhering to, at S212: the rete mirabile coordination entity can refresh current system information to HSS or AAA more.Can adopt repeatedly to refresh and merge or only refresh difference or mode such as regularly carry out reduces visit to HSS under the situation of operator's permission.In addition, the rete mirabile coordination entity is can do work such as key updating according to security framework.

Describe the rete mirabile coordination entity below in detail.

With reference to figure 7, a kind of rete mirabile conditioning unit of the embodiment of the invention, it mainly comprises:

Switch Coordination Treatment unit 121, described switching Coordination Treatment unit 121 is mainly used in the switching Coordination Treatment that subscriber equipment switches between the communication system of various criterion, the wireless communication system of wherein said various criterion comprises 3GPP communication system, 3GPP2 communication system, WiMAX communication system and/or WLAN communication system etc., repeats no more here.

During specific implementation, be the coordination that realizes switching between rete mirabile, with reference to figure 8, described switching Coordination Treatment unit 121 can comprise:

Source wireless communication system message receipts/bill unit 1211, be used for handoff request message that reception sources wireless communication system controlled entity sends or send switching response message to the source wireless communication system, in addition, also can be used for sending handoff completion message to the source wireless communication system;

Selected cell 1212, the Target Cell Identifier that is used for the source wireless communication system handoff request message that receives according to described source wireless communication system message receipts/bill unit 1211 is known the controlled entity address of Target Wireless communication system and Target Wireless communication system;

Authentication coordination unit 1213 is used to obtain the authorization data of subscriber equipment in the Target Wireless communication system, directly or by the controlled entity of Target Wireless communication system initiates authentication to authentication server;

As a specific embodiment, described authentication coordination unit 1213 can comprise:

Authorization data converting unit 1213a is used for the subscription data of source wireless communication system user equipment is converted to the subscription data of Target Wireless communication system; Or

Authentication entity unit 1213b is used for substituting family equipment according to subscriber equipment at Target Wireless communication system subscription data and directly initiates authentication to authentication server; Or

Authentication indicating member 1213c, be used for transmitting the subscription data of subscriber equipment, initiate authentication at the subscription data of Target Wireless communication system to authentication server according to described subscriber equipment by the controlled entity of Target Wireless communication system in the Target Wireless communication system to Target Wireless communication system controlled entity.

Target Wireless communication system information receipts/bill unit 1214 is used for sending the handoff request message of carrying Target Cell Identifier and new authentication/bearer context to Target Wireless communication system controlled entity; Or the receiving target wireless communication system controlled entity switching response message of sending, in addition, also be used for the handoff completion message that the receiving target communication system is sent;

Signaling converting unit 1215, be used for the conversion of Message Processing signaling between source wireless communication system and Target Wireless communication system, wherein relating generally to the switching response message or the handoff completion message that send to the source wireless communication system all needs to change according to source end signaling protocol before transmission, and the handoff request message that sends to the Target Wireless communication system also needed the signaling protocol conversion according to the Target Wireless communication system before sending, and may relate to signaling protocol conversion or the conversion of other signaling protocols that may relate to that carrying is handled.

Need illustrate, as previously mentioned, for the carrying after switching, both can pass through the preceding carrying conversion of carrying, also can be by newly-built carrying, carrying is changed for needs, described rete mirabile conditioning unit also can carry out corresponding coordination, and promptly described rete mirabile conditioning unit also can comprise:

Carrying conversion Coordination Treatment unit 1216 is used for subscriber equipment switches to the Target Wireless communication system from described source wireless communication system carrying conversion Coordination Treatment.

As a specific embodiment, described carrying conversion Coordination Treatment unit 1216 can comprise:

Beared information conversion processing unit 1216a, be used for after the handoff request message of receiving source wireless communication system controlled entity, according to being the beared information that the user set up in the wireless communication system of source, be converted to needed beared information in the Target Wireless communication system;

Bearing association is set up processing unit 1216b, be used for working as Target Wireless communication system controlled entity according to pre-established carrying of beared information, after returning the switching response message of accepting to switch, notification source, Target Wireless communication system institute data shared anchor point are set up the association at same user's carrying of source, Target Wireless communication system;

Switch data is transmitted passage and is set up coordination unit 1216c, the data forwarding channel information and the source wireless communication system related entities that are used for carrying according to Target Wireless communication system controlled entity switching response message are coordinated, and transmit passage with the switch data of setting up between source wireless communication system and Target Wireless communication system.

With reference to figure 9, for by the user equipment to report Target cell, need the user equipment to report target cell information, for this reason, and a kind of subscriber equipment in the present embodiment, it includes switching treatmenting unit 13, and described switching treatmenting unit 13 can comprise:

Switching target generation unit 131, the generation unit of switching target described in the present embodiment 121 are mainly used in scanning rete mirabile system adjacent area and measure, and determine rete mirabile system switching target;

Handoff request message encapsulation unit 132, the message of handoff request described in present embodiment encapsulation unit 132 is mainly used in the rete mirabile aims of systems sub-district of described switching and/or rete mirabile system authorization data information, and/or is encapsulated in the handoff request message for finishing the required rete mirabile system supplymentary information of switching;

Handoff request message sending unit 133,133 described being used for of handoff request message sending unit send to the source wireless communication system with described handoff request message in the present embodiment.

With reference to Figure 10, the rete mirabile conditioning unit of another embodiment, it mainly comprises:

Adhere to Coordination Treatment unit 122 more, adhere to Coordination Treatment unit 122 more described in the present embodiment and be mainly used in subscriber equipment and adhere to Coordination Treatment when adhering to more.

As a specific embodiment,, describedly more adhere to Coordination Treatment unit 122 and can comprise with reference to Figure 11:

Authentication process unit 1221, be used for carrying out the authentication process that subscriber equipment adheres to more alternately with authentication server, promptly the authentication parameter that sends according to wireless communication system to be adhered to is initiated authentication to authentication server, if authentication is passed through, then can obtain the subscription data that adheres to more;

Authenticating result notification unit 1222 is used for subscriber equipment is adhered to authentication process result notification subscriber equipment communication system controlled entity to be adhered to more.

In addition, between rete mirabile, frequently adhere to situation about can't know mutually, adhere to Coordination Treatment unit 122 more described in the present embodiment and can comprise following independent function entity for solving subscriber equipment:

Check to be used to check whether subscriber equipment adhered in other communication systems by processing unit 1223, and in check result when being, obtain former data anchor point information and/or original business information of adhering to communication system to the former communication system controlled entity that adheres to;

In addition, if attaching process relates to the interaction process of various criterion system, adhere to Coordination Treatment unit 122 more described in the present embodiment and also can comprise signaling conversion processing unit 1224, be used for above-mentioned conversion of adhering to Message Processing signaling between the communication system of handling the various criterion that relates to.

The above only is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1, a kind of wireless network comprises it is characterized in that the wireless communication system of various criterion, also comprises:

2, wireless network according to claim 1 is characterized in that, described rete mirabile conditioning unit is the standalone feature entity.

3, wireless network according to claim 1 is characterized in that, the wireless communication system of described various criterion comprises:

3GPP communication system, 3GPP2 communication system, WiMAX communication system and/or WLAN communication system;

Described rete mirabile conditioning unit is positioned at or is integrated in the Mobility Management Entity of described 3GPP communication system, or serving GPRS support node, or the determination point of the access service network gateway of described WiMAX communication system, or the controlled entity of intercommunication in controlled entity IAD in the described 3GPP2 communication system or the described WLAN communication system.

4, a kind of rete mirabile conditioning unit is characterized in that, comprising:

5, rete mirabile conditioning unit according to claim 4 is characterized in that, described switching Coordination Treatment unit comprises:

Source wireless communication system message receipts/bill unit is used for handoff request message that reception sources wireless communication system controlled entity sends or sends switching response message to the source wireless communication system;

Selected cell is used for the Target Cell Identifier of the source wireless communication system handoff request message that receives according to described source wireless communication system message receipts/bill unit, knows the controlled entity address of Target Wireless communication system and Target Wireless communication system;

The authentication coordination unit is used to obtain the authorization data of subscriber equipment in the Target Wireless communication system, directly or by the controlled entity of Target Wireless communication system initiates authentication to authentication server;

Target Wireless communication system information receipts/bill unit is used for sending the handoff request message of carrying Target Cell Identifier and new authentication/bearer context to Target Wireless communication system controlled entity; Or the receiving target wireless communication system controlled entity switching response message of sending;

The signaling converting unit is used for the conversion of Message Processing signaling between source wireless communication system and Target Wireless communication system.

6, rete mirabile conditioning unit according to claim 5 is characterized in that, also comprises carrying conversion Coordination Treatment unit, is used for subscriber equipment switches to the Target Wireless communication system from described source wireless communication system carrying conversion Coordination Treatment.

7, rete mirabile conditioning unit according to claim 6 is characterized in that, described carrying conversion Coordination Treatment unit comprises:

The beared information conversion processing unit is used for after the handoff request message of receiving source wireless communication system controlled entity, according to being the beared information that the user set up in the wireless communication system of source, is converted to needed beared information in the Target Wireless communication system;

Bearing association is set up processing unit, be used for working as Target Wireless communication system controlled entity according to pre-established carrying of beared information, after returning the switching response message of accepting to switch, notification source, Target Wireless communication system institute data shared anchor point are set up the association at same user's carrying of source, Target Wireless communication system;

Switch data is transmitted passage and is set up coordination unit, the data forwarding channel information and the source wireless communication system related entities that are used for carrying according to the switching response message that Target Wireless communication system controlled entity sends are coordinated, and transmit passage with the switch data of setting up between source wireless communication system and Target Wireless communication system.

8, rete mirabile conditioning unit according to claim 6 is characterized in that, described authentication coordination unit comprises:

The authorization data converting unit is used for the subscription data of source wireless communication system user equipment is converted to the subscription data of Target Wireless communication system; Or

The authentication entity unit is used for substituting family equipment according to subscriber equipment at Target Wireless communication system subscription data and directly initiates authentication to authentication server; Or

The authentication indicating member, be used for transmitting the subscription data of subscriber equipment, initiate authentication at the subscription data of Target Wireless communication system to authentication server according to described subscriber equipment by the controlled entity of Target Wireless communication system in the Target Wireless communication system to Target Wireless communication system controlled entity.

9, a kind of subscriber equipment comprises switching treatmenting unit, it is characterized in that, described switching treatmenting unit comprises:

10, a kind of rete mirabile conditioning unit is characterized in that, comprising:

11, rete mirabile conditioning unit according to claim 10 is characterized in that, describedly more adhere to the Coordination Treatment unit and comprises:

The authentication process unit is used for carrying out the authentication process that subscriber equipment adheres to more alternately with authentication server;

The authenticating result notification unit is used for subscriber equipment is adhered to authentication process result notification subscriber equipment communication system controlled entity to be adhered to more.

12, rete mirabile conditioning unit according to claim 11 is characterized in that, also comprises:

Check to be used to check whether subscriber equipment adhered in other communication systems by processing unit, and in check result when being, obtain former data anchor point information and/or original business information of adhering to communication system to the former communication system controlled entity that adheres to;

The signaling conversion processing unit is used to relate to the conversion of adhering to the Message Processing signaling of processing between the communication system of various criterion.

13, a kind of changing method of subscriber equipment is characterized in that, comprising:

The rete mirabile coordination entity directly or by the controlled entity of Target Wireless communication system is initiated authentication to authentication server according to the authorization data of subscriber equipment in the Target Wireless communication system; And after authentication is passed through, the Target Cell Identifier after the signaling conversion is carried in the transmission of Target Wireless communication system controlled entity and the handoff request message of new authentication/bearer context;

14, the changing method of subscriber equipment according to claim 13 is characterized in that, Target Wireless communication system controlled entity comprised also that before the rete mirabile coordination entity is returned switching response message the execution switching carrier is pre-established;

The rete mirabile coordination entity is carried and is also comprised the auxiliary switch data forwarding passage of setting up when conversion is consulted;

When source wireless communication system controlled entity sends switching command to subscriber equipment, and the indication related entities is transmitted the packet that passage is transmitted switching by switch data.

15, the changing method of subscriber equipment according to claim 13, it is characterized in that, the authorization data that described subscriber equipment is converted to for the source wireless communication system authorization data by subscriber equipment at the authorization data of Target Wireless communication system, or the authorization data that reports in the handoff request message that sends of subscriber equipment.

According to the changing method of claim 13,14 or 15 each described subscriber equipmenies, it is characterized in that 16, described source wireless communication system and Target Wireless communication system comprise the communication system of following various criterion:

3GPP communication system, 3GPP2 communication system, WiMAX communication system and/or WLAN communication system.

17, a kind of changing method of subscriber equipment is characterized in that, comprising:

18, the changing method of subscriber equipment according to claim 17, it is characterized in that, the authorization data that described subscriber equipment is converted to for the source wireless communication system authorization data by subscriber equipment at the authorization data of Target Wireless communication system, or the authorization data that reports in the subscriber equipment handoff request message.

According to the changing method of claim 17 or 18 described subscriber equipmenies, it is characterized in that 19, described source wireless communication system and Target Wireless communication system comprise the communication system of following various criterion:

20, a kind of user's device attaching method is characterized in that, comprising:

21, user's device attaching method according to claim 20, it is characterized in that, communication system controlled entity described to be adhered to is the Mobility Management Entity of 3GPP communication system, or serving GPRS support node, or the determination point of the access service network gateway of WiMAX communication system, or controlled entity IAD in the 3GPP2 communication system or the controlled entity in the WLAN communication system.

22, a kind of user's device attaching method is characterized in that, comprising:

23, user's device attaching method according to claim 22 is characterized in that, described rete mirabile coordination entity is carried out authentication and is:

The rete mirabile coordination entity detect described subscriber equipment whether local authentication pass through, if detect less than, then initiate to adhere to authentication to authentication server according to the subscription authentication parameter more.

24, according to claim 22 or 23 described user's device attaching methods, it is characterized in that, communication system controlled entity described to be adhered to is the Mobility Management Entity of 3GPP communication system, or serving GPRS support node, or the determination point of the access service network gateway of WiMAX communication system, or controlled entity IAD in the 3GPP2 communication system or the controlled entity in the WLAN communication system.