CN102752829B - Access processing method, device and subscriber equipment - Google Patents

Abstract

The invention provides a kind of access processing method, device and subscriber equipment, described method is applied to and is communicated with in the communication system of access network based on IP, comprise: receive the tracing section updating request that in prohibited area, subscriber equipment is initiated, judge whether described subscriber equipment exists urgency traffic, if, then accept described tracing section updating request, retain the resource that described urgency traffic uses; Described device comprises: access request receiving element, connect into analysis unit, urgency traffic judging unit and urgency traffic processing unit.Described subscriber equipment, for the request of network side initiating updating of tracking area, and is linked in communication network and communicates, comprising: urgent access request initiates unit and urgency traffic stick unit.The present invention, to solve subscriber equipment when prohibited area accesses, can retain the problem of the resource that urgency traffic uses.

Description

Access processing method, device and subscriber equipment

Technical field

The present invention relates to moving communicating field, particularly relate to access processing method, device and subscriber equipment in prohibited area in a kind of IP connection access network.

Background technology

Along with network technology development, third generation partnership project (ThirdGenerationPartnershipProjects, 3GPP) in order to strengthen the competitiveness of future network, and release a kind of system evolved framework (SystemArchitectureEvolution, SAE), as shown in Figure 1, comprise the UMTS Terrestrial radio access network 101 (EvolvedUMTSTerrestrialRadioAccessNetwork of evolution, E-UTRAN), for realizing all relevant functions wireless with evolvement network; Mobility Management Entity 102 (MobilityManagementEntity, MME), for the mobile management of responsible chain of command, as user's context and mobile status management, distributing user temporary identifications etc.; Service gateway entity 103 (ServingGateway, ServingGW) is the user face anchor point between 3GPP connecting system, stops the interface of E-TURAN; Grouped data network gateway entity 104 (PacketDataNetworkGateway, PDNGW) be user face anchor point between 3GPP connecting system and non-3 GPP access system, the interface of termination and external packet data networks (PacketDataNetwork, PDN); "Policy and Charging Rules Function entity 105 (PolicyandChargingRuleFunction, PCRF) determines and flow based charging controlling functions for policy control; Home network server 106 (HomeSubscriberServer, HSS) is for storing user subscription information.

UMTS Terrestrial radio access network 107 (UMTSTerrestrialRadioAccessNetwork, UTRAN), GSM EDGE Radio Access Network 108 (GSM/EDGERadioAccessNetwork, GERAN), for realizing wireless relevant function in all and existing GPRS/UMTS network; Service universal grouping wireless business supporting node 109 (ServingGPRSSupportingNode, SGSN), for realizing the functions such as routing forwarding in GPRS/UMTS network, mobile management, session management and user profile storage.

Non-3 gpp IP access network 110 (Non-3GPPIPAccess), the mainly access network of some non-3 gpp tissues definition, as WLAN (wireless local area network) (WirelessLocalAreaNetwork, WLAN), the networks such as micro-wave access global inter communication (WorldwideInteroperabilityforMicrowaveAccess, Wimax).

This system architecture can also comprising certification, authorizing accounting server 111 (Authentication, AuthorizationandAccountingServer, AAAServer) for performing access authentication, mandate and billing function to UE.

At present, 3GPP is organized in research internet multimedia subnet (InternetMultiediaSubsystem, IMS) urgency traffic, so-called urgency traffic, be beneficial to IP exactly and be communicated with access network (IP-ConnectivityAccessNetwork, IP-CAN, as networks such as GPRS/UMTS/SAE/WLAN/Wimax) and IMS system provide urgency traffic (as alert service and fire alarm business etc.) for user.For urgency traffic, even if user needs when roaming prohibited area (forbiddenlocationareasforroaming) or business prohibited area (forbiddenlocationareasforregionalprovisionofservice) to allow to use, that is, under above-mentioned specific scene, user also can use urgency traffic.

But in current IP-CAN network, user will not allow access when prohibited area, and will be gone registration at these district's intra domain users from network, the business that such user is using will be interrupted.If but these users use urgency traffic, according to present protocol requirement, this user also needs to continue to provide urgency traffic in prohibited area, but other business (such as regular traffic) of described user does not allow to continue to use in prohibited area.How ensureing that user only uses urgency traffic in prohibited area and other business will be terminated, is current mechanism also insurmountable problem.

Summary of the invention

The embodiment of the present invention provides a kind of method, device and the subscriber equipment that access process, to solve subscriber equipment when prohibited area accesses, can retain the problem of the resource that urgency traffic uses.

For solving the problem, the embodiment of the present invention provides a kind of access processing method, is applied to and is communicated with in the communication system of access network based on IP, comprise step:

Receive the tracing section updating request that in prohibited area, subscriber equipment is initiated;

Judge whether described subscriber equipment exists urgency traffic, if so, then accept described tracing section updating request;

Retain the resource that described urgency traffic uses;

The resource that release regular traffic uses;

Wherein, the process of the resource of described release regular traffic use is:

According to described tracing section updating request, initiate network side resource and delete flow process, the resource used by described subscriber equipment regular traffic is deleted.

The embodiment of the present invention reoffers a kind of access processing method, comprises step:

When subscriber equipment switches to target side network from source network, if the target area of subscriber equipment is prohibited area, then source network judges whether described subscriber equipment exists urgency traffic, and if so, then the resource information that described urgency traffic uses is sent to objective network by described source network;

Described objective network sets up the resource that urgency traffic uses.

Correspondingly, the embodiment of the present invention provides a kind of access processing unit, for processing during the equipment access network of family, comprising:

Access request receiving element, for receiving the tracing section updating request that subscriber equipment is initiated;

Connect into analysis unit, for analyzing the tracing section updating request that described access request receiving element receives, judges whether subscriber equipment is positioned at prohibited area;

Urgency traffic judging unit, for the judged result according to connect into analysis unit, judge when subscriber equipment is positioned at prohibited area whether described subscriber equipment exists urgency traffic;

Urgency traffic processing unit, for the judged result according to described urgency traffic judging unit, accepts the access of subscriber equipment, and retains the resource of urgency traffic use described in this subscriber equipment;

Wherein, described urgency traffic processing unit comprises:

Resource process subelement, for when judged result is for existing urgency traffic, accepts tracing section updating request message or the Routing Area Update request message of subscriber equipment transmission, and retaining the resource of this user equipment urgent business use;

Described urgency traffic processing unit also comprises: network side resource release subelement, for accept subscriber equipment send tracing section updating request message or Routing Area Update request message after, initiate resource and delete flow process, delete the resource that described subscriber equipment normally uses.

The embodiment of the present invention provides again a kind of access processing unit, comprising:

Urgency traffic judging unit, when subscriber equipment switches to target side network from source network, for judging target area is whether the subscriber equipment of prohibited area exists urgency traffic, and to send be the judged result of urgency traffic;

Urgency traffic initiates unit, for sending the resource information of urgency traffic use after the judged result described in receiving being urgency traffic to objective network;

Urgent resource sets up unit, and the resource information that the described urgency traffic for sending according to urgency traffic transmitting element uses sets up the resource that described urgency traffic uses.

As shown from the above technical solution, after the network side element of the embodiment of the present invention receives the tracing section updating request of subscriber equipment, if find that user forbids or roam forbidding at this area traffic, then judge whether described subscriber equipment exists urgency traffic, if exist, network side element retains the related resource that urgency traffic uses.With meet subscriber equipment access in prohibited area time, the normal use of urgency traffic can be realized.Thus improve the satisfaction of user.

Accompanying drawing explanation

Fig. 1 is prior art 3GPP evolvement network schematic diagram;

Fig. 2 is embodiment of the present invention access processing method flow chart;

Fig. 3 is the flow chart of access processing method in first embodiment of the invention;

Fig. 4 is the flow chart of access processing method in second embodiment of the invention;

Fig. 5 is the flow chart of access processing method in third embodiment of the invention;

Fig. 6 is the flow chart of access processing method in the present invention four embodiment;

The flow chart of the another kind of access processing method that Fig. 7 provides for the embodiment of the present invention;

Fig. 8 is the flow chart of fifth embodiment of the invention access processing method;

Fig. 9 is the flow chart of access processing method in the present invention six embodiment;

Figure 10 is the flow chart of seventh embodiment of the invention access processing method;

The flow chart of another access processing method that Figure 11 provides for the embodiment of the present invention;

Figure 12 provides a kind of flow chart of access processing method for eighth embodiment of the invention;

Figure 13 is the structure chart of embodiment of the present invention access processing unit;

Figure 14 is the another kind of structure chart of embodiment of the present invention access processing unit;

Figure 15 is another structure chart of embodiment of the present invention access processing unit;

Figure 16 provides a kind of flow chart of access processing method for ninth embodiment of the invention;

Figure 17 tenth embodiment of the invention provides a kind of flow chart of access processing method.

Embodiment

Below in conjunction with drawings and Examples, the present invention is described in detail.

Refer to Fig. 2, the flow chart of access processing method in the embodiment of the present invention, the method is applied to and is communicated with in the communication system of access network based on IP, comprises step:

Step S21: receive the access request that in prohibited area, subscriber equipment is initiated;

Step S22: judge whether described subscriber equipment exists urgency traffic, if so, performs step S23, otherwise performs step S25;

Step S23: accept described access request;

Step S24: retain the resource that urgency traffic uses;

Step S25: refusal access request.

Optionally, described method also comprises: after the resource retaining urgency traffic use, the resource that release regular traffic uses.

Optionally, described access request is tracing section updating request or Routing Area Update request.

In IP-CAN network (IP is communicated with access network), network side element receives subscriber equipment (UserEquipment, UE) after access request message, if find that user forbids or roam forbidding at this area traffic, then network side element initiates network side resource release flow, the resource that regular traffic user set up uses discharges, and retains the related resource that urgency traffic uses.That is, when access request initiated by subscriber equipment, network side element is after prohibited area receives described access request, judge whether described subscriber equipment exists business and forbid or roam forbidding, if existed, network side element judges whether subscriber equipment exists urgency traffic, if existed, then initiate network side resource release flow, the resource release used by this subscriber equipment regular traffic, retains the resource that urgency traffic uses; While the resource that release regular traffic uses, judge whether subscriber equipment exists signaling bear, if exist, then retain the signaling bear of subscriber equipment; Network side element is initiated radio bearer and is deleted flow process, is deleted by radio bearer corresponding for releasing resource; After urgency traffic terminates, urgency traffic termination process initiated by subscriber equipment on signaling bear.

For the ease of the understanding of those skilled in the art, illustrate below in conjunction with specific embodiment.

Refer to Fig. 3, for the flow chart of access processing method in first embodiment of the invention, in the present embodiment, after network side element (such as mobile management entity MME/Serving GPRS Support Node SGSN) receives the tracing section updating request/Routing Area Update request message of user equipment (UE) transmission, judge whether forbid or roam forbidding by business in this region for UE, if, then MME/SGSN judges whether UE exists urgency traffic, if no, then MME refuses the tracing section updating request/Routing Area Update request of UE; If UE exists urgency traffic, then MME/SGSN accepts the tracing section updating request/Routing Area Update request of UE, is fallen by the deleting load-bearing that user's regular traffic uses simultaneously, and retain the relevant bearer that urgency traffic uses, its concrete implementation procedure is:

1, UE sends access request message to network side element; Wherein, for SAE system, UE sends tracing section updating request message to MME; For GPRS/UMTS system, UE sends Routing Area Update request message to SGSN.

2, MME or SGSN (follow-up abbreviation MME/SGSN) sends location update message to HSS;

3.HSS sends feedback and inserts subscription data message to MME/SGSN, carry the subscription data of UE in message, comprise the roaming position prohibited area " forbiddenlocationareasforroaming " of UE or position prohibited area " forbiddenlocationareasforregionalprovisionofservice " information of whole feed region;

3 ', described MME/SGSN replys authorization data acknowledge message to HSS.

4, HSS home position upgrades acknowledge message to MME/SGSN

5, MME/SGSN is according to the access region of the subscription data of user and user, judges whether forbid or roam forbidding by business in this region for UE, and the situation that may exist is:

Forbid or roam forbidding if UE is not business in this region, then MME/SGSN normal process; If UE forbids or roam forbidding at this area traffic, then MME/SGSN judges whether UE exists urgency traffic; If UE does not have urgency traffic, then MME/SGSN refuses the tracing section updating request of UE.

If UE forbids or roam forbidding at this area traffic, but this UE exists urgency traffic, then MME/SGSN accepts the tracing section updating request/Routing Area Update request of UE.For SAE system, MME sends deleting bearing request message and initiates network side load deletion flow process to ServingGW (described ServingGW forwards and delivers to PDN-GW), the deleting load-bearing that the regular traffic of UE uses is fallen, retains the relevant bearer that urgency traffic uses; For GPRS/UMTS system, SGSN sends and deletes PDP Context request message to ServingGW initiation network side load deletion flow process, is fallen by the deleting load-bearing that the regular traffic of UE uses, retains the relevant bearer that urgency traffic uses;

MME/SGSN according to judging with under type whether UE exists urgency traffic, can namely judge whether UE exists the emergency bearing of urgency traffic use.Its a kind of judgment mode is: judge the Access Point Name (AccessPointName that the carrying that UE uses uses, APN), if find to there is specific APN (described specific APN i.e. overall special urgent Access Point Name, globallydedicatedemergencyAPN), then MME/SGSN thinks that UE exists urgency traffic, another kind of judgment mode is: the urgent indicating bit (EmergencyIndication) judging to use in the carrying that UE uses service quality QoS parameter, if find that the value that there is urgent indicating bit is yes, then MME/SGSN thinks that UE exists the emergency bearing of urgency traffic use, namely there is urgency traffic in UE.

When described MME/SGSN retains the emergency bearing of urgency traffic use, also need to judge whether UE exists signaling bear (carrying of a transmitting SIP signaling), if UE exists signaling bear, then signaling bear also needs to retain.After subsequent emergency service ending, UE needs on signaling bear, initiate urgency traffic termination process.For other carrying, then these carryings are deleted by MME/SGSN initiation network side load deletion flow process from network.Whether described MME/SGSN can carry for signaling bear according to judging with under type: MME/SGSN judges whether there is IMCN Signaling Flag position (Subsystemsignallingflag) in the bearer context that UE uses, if the value of this flag bit is true (True), then show that this carrying is signaling bear.

5 ', described PDN-GW feeds back deleting bearing response to ServingGW, and described ServingGW forwards feedback to MME/SGSN and deletes response.

6, MME/SGSN initiates radio bearer and deletes flow process, is deleted by the radio bearer of the carrying correspondence of deleting;

7, MME/SGSN sends tracing section updating and accepts message to UE;

8, UE replys tracing section updating to MME/SGSN and completes message.

If there is signaling bear, after urgency traffic completes, UE initiates urgency traffic termination process on signaling bear.

Referring to Fig. 4, is the flow chart of access processing method in second embodiment of the invention.In the present embodiment, non-3 gpp gateway device performs access authentication and authorization flow after receiving the access request of UE transmission, judge whether UE is prohibited from entering in this region, if, then non-3 gpp gateway device judges whether UE exists urgency traffic, if no, then non-3 gpp gateway device refuses the access of UE; If UE exists urgency traffic, then non-3 gpp gateway device accepts the access of UE, retains the tunnel resource that urgency traffic uses simultaneously, is discharged by the tunnel resource that other business uses.Concrete implementation procedure is:

1, UE sends access request to non-3 gpp gateway device (Non-3GPPGW); For wlan system, non-3 gpp Gateway Network Element is EPDG (evolution packet data gateway, EvolvedPacketDataGateway); For Wimax system, non-3 gpp Gateway Network Element is ASNGW (access business network gateway, AccessServiceNetworkGateway); For cdma system, non-3 gpp Gateway Network Element is AGW (IAD, AccessGateway).

2, Non-3GPPGW performs access authentication and authorization flow, judges whether UE allows access;

If 3 UE are prohibited from entering in this region, then Non-3GPPGW judges whether UE exists urgency traffic, if there is no, then the access of non-3 gpp gateway refusal UE, if UE exists urgency traffic, then non-3 gpp gateway accepts the access request of UE;

According to following method, Non-3GPPGW can judge whether UE exists urgency traffic: Non-3GPPGW judges whether the APN in the tunnel that UE uses exists specific APN (namely overall special urgent Access Point Name, globallydedicatedemergencyAPN), if existed, then there is urgency traffic in UE;

4, Non-3GPPGW retains the tunnel resource that urgency traffic uses, and initiates release tunneled requests to UE, the tunnel resource that release regular traffic uses;

4 ', UE feeds back tunnel acknowledge message to Non-3GPPGW;

5, Non-3GPPGW transmission tunnel goes to connect report message to AAAServer, and notice AAAServer discharges tunnel resource;

5 ', AAAServer goes to report acknowledge message in succession to Non-3GPPGW reply tunnel.

In an embodiment of the present invention, the release of resource also can be initiated by UE, and is not just triggered by network side.That is, if when UE receive accept message after find to accept to carry in message the message that user to forbid in this region accessing after retain resource that urgency traffic uses and start flow deletes the resource that other business uses.Its concrete implementation procedure refers to figure below.

Referring to Fig. 5, is the flow chart of access processing method in third embodiment of the invention.In the present embodiment, network side element (i.e. Access Network) is MME or SGSN.MME/SGSN judges whether forbid or roam forbidding by business in this region for UE after receiving the tracing section updating request/Routing Area Update request message of UE transmission, if, then MME/SGSN judges whether UE exists urgency traffic, if no, then MME/SGSN refuses the tracing section updating request/Routing Area Update request of UE; If UE exists urgency traffic, then MME/SGSN accepts the tracing section updating request/Routing Area Update request of UE, sends tracing section updating acceptance/Routing Area Update and accepts message to UE, carries the information that UE forbids in this region accessing in message.UE retains the relevant bearer that urgency traffic uses after receiving message, the bearing resource for other is initiated deexcitation flow process and deleted.Concrete implementation procedure is:

1, UE sends tracing section updating request message to MME/SGSN;

2, MME/SGSN receives the tracing section updating request message that UE sends, judge whether forbid or roam forbidding by business in region for UE, if UE forbids access in this region, MME/SGSN judges whether UE exists in urgency traffic, if there is not urgency traffic in UE, then MME/SGSN refuses the tracing section updating request of UE, sends out tracing section updating refuse information to UE

If UE exists urgency traffic, then MME/SGSN accepts the tracing section updating request of UE, sends tracing section updating and accepts message to UE.Tracing section updating accepts to carry in message the information that UE forbids accessing in region, can realize in the following way: accept to increase " ForbiddenAccessFlag " field in message at tracing section updating, if the value of this field is True, then show that UE forbids access in this region, if the value of this field is False, then show that UE normally accesses in this region;

UE judges that tracking area follows the tracks of the flag accepted in message, if flag indicates that UE forbids access in region, then UE retains the emergency bearing that urgency traffic uses, and judges whether UE exists signaling bear simultaneously, if UE exists signaling bear, then retain signaling bear;

3, UE replys tracing section updating to MME/SGSN and completes message;

4, UE sends deexcitation bearing request message to MME/SGSN, initiates deexcitation flow process, deletes other carrying; That is, UE judges that tracking area tracking acceptance/Routing Area Update accepts the flag in message, if flag shows that UE forbids access in this region, then UE retains the emergency bearing that urgency traffic uses.Judge whether UE exists signaling bear (carrying of a transmitting SIP signaling), if UE exists signaling bear, then signaling bear also needs to retain simultaneously.For other carrying, then these carryings are deleted by UE initiation deexcitation flow process from network;

5, MME/SGSN sends deleting bearing request message to ServingGW; For SAE system, MME sends deleting bearing request message and initiates network side load deletion flow process to ServingGW, is fallen by the deleting load-bearing of deexcitation; For GPRS/UMTS system, SGSN sends and deletes PDP Context request message to ServingGW initiation network side load deletion flow process, is fallen by the deleting load-bearing of deexcitation;

5 ', ServingGW replys bearing response message to MME/SGSN, deletes the carrying of deexcitation;

6, MME/SGSN initiates radio bearer and deletes flow process, is deleted by radio bearer corresponding for deexcitation carrying;

7, MME/SGSN sends deexcitation carrying and accepts message to UE.

If there is signaling bear, after urgency traffic completes, UE initiates urgency traffic termination process on signaling bear.

Also referring to Fig. 6, is the flow chart of access processing method in the present invention four embodiment.In the present embodiment, non-3 gpp gateway device performs access authentication and authorization flow after receiving the access request of UE transmission, judge whether UE is prohibited from entering in this region, if, then non-3 gpp gateway device judges whether UE exists urgency traffic, if no, then non-3 gpp gateway device refuses the access of UE; If UE exists urgency traffic, then non-3 gpp gateway device sends access message to UE, carries the information that UE forbids in this region accessing in message.UE retains the associated tunnel resource that urgency traffic uses after receiving message, discharged by the tunnel resource that other business uses.Concrete implementation procedure is:

1, UE sends access request to Non-3GPPGW; For wlan system, non-3 gpp Gateway Network Element is EPDG (evolution packet data gateway, EvolvedPacketDataGateway); For Wimax system, non-3 gpp Gateway Network Element is ASNGW (access business network gateway, AccessServiceNetworkGateway); For cdma system, non-3 gpp Gateway Network Element is AGW (IAD, AccessGateway);

2, Non-3GPPGW performs access authentication and authorization flow, judges whether UE allows access, if allow access, then normal process, if forbid access, then performs step 3;

3, Non-3GPPGW judges whether UE exists urgency traffic, and if there is no, then Non-3GPPGW refuses the access of UE; If UE exists urgency traffic, then Non-3GPPGW accepts the access of UE.Accept to carry in message the information that UE forbids accessing in this region, can realize by the following method:

Accept to increase " ForbiddenAccessFlag " field in message in access.If the value of this field is True, then show that UE forbids access in this region.If the value of this field is False, then show that UE normally accesses in this region;

4, UE judges the flag in message after receiving and accepting message, if flag shows that UE forbids access in this region, then UE initiates release tunneled requests, namely initiates tunnel and removes linker, retain the tunnel resource that urgency traffic uses, the tunnel resource that release regular traffic uses;

4 ', UE sends the confirmation of release tunnel to Non-3GPPGW;

5, Non-3GPPGW transmission tunnel goes to connect report message to AAAServer, and notice tunnel resource is released.AAAServer discharges tunnel resource, then goes back to tunnel and goes to connect report acknowledge message to AAAServer;

5 ', AAAServer discharges tunnel resource, then replys tunnel and goes connection report to confirm message to Non-3GPPGW.

Referring to Fig. 7, is the flow chart of the another kind of access processing method that the embodiment of the present invention provides, and the method is applied to and is communicated with in the communication system of access network based on IP, comprises step:

Step S71: when initiating access request and refused by network side in prohibited area, then initiate urgent access request to network side element;

Step S72: the resource that the urgency traffic retaining the urgent access request of described initiation uses.

Preferably, described method also comprises: the resource that release regular traffic uses.

If after the network side element in IP-CAN network receives the access request message of UE, discovery user is limited or limited when roaming in this region, then the access request of network side element refusal UE.If find to there is urgency traffic after UE receives the access-reject message of network side element transmission, then UE sends urgent access request message to network side element, network side element accepts the urgent access request message of UE, initiate network side resource release flow simultaneously, by user set up regular traffic use resource discharge or UE receive network side element send urgent access accept message after initiate resource release flow, by user set up regular traffic use resource discharge.While reservation urgency traffic uses resource, judge whether subscriber equipment exists signaling bear, if exist, then retain; After urgency traffic terminates, urgency traffic termination process initiated by subscriber equipment on signaling bear.

For the ease of the understanding of the personnel of art technology, refer to following embodiment.

Referring to Fig. 8, is the flow chart of fifth embodiment of the invention access processing method.In the present embodiment, MME/SGSN judges whether forbid or roam forbidding by business in this region for UE after receiving the tracing section updating request/Routing Area Update request message of UE transmission, if so, then MME/SGSN refuses the tracing section updating request/Routing Area Update request of UE.UE judges whether to there is urgency traffic after receiving the tracing section updating refusal/Routing Area Update Reject message of MME/SGSN transmission, if existed, then UE sends urgent tracing section updating request/urgent Routing Area Update request message to MME.MME accepts the urgent tracing section updating request/urgent Routing Area Update request of UE, and initiates network side deexcitation flow process, and the deleting load-bearing that regular traffic user set up uses falls, and retains the relevant bearer that urgency traffic uses.Concrete implementation procedure is:

1, UE sends tracking area request message to MME/SGSN; For SAE system, UE sends tracing section updating request message to MME; Routing Area Update request message is sent to SGSN for GPRS/UMTS, UE;

2, MME/SGSN judges whether forbid or roam forbidding by business in region for UE after receiving the tracing section updating request message of UE transmission, if, then MME/SGSN refuses the tracing section updating request of UE, reply tracing section updating refuse information to UE, MME/SGSN judges whether UE exists urgency traffic simultaneously, if existed, then MME/SGSN does not delete user's context and the bearer context of UE, waits for the process of UE;

3, UE receives the tracing section updating refuse information that MME/SGSN replys, and judges whether UE exists urgency traffic: if there is no, then UE deletes user's context and bearer context, no longer carries out subsequent treatment; If UE exists urgency traffic, then UE sends urgent tracing section updating request message to MME/SGSN, and request promptly accesses, and the UpdateType of tracing section updating request message also can be set to emergencyaccess to represent urgent access by UE;

4, MME/SGSN accepts the urgent tracing section updating request of UE, sends deleting bearing request message to ServingGW; That is: MME/SGSN accepts the urgent tracing section updating request/urgent Routing Area Update request of UE, MME/SGSN sends deleting bearing request message and initiates network side load deletion flow process to ServingGW simultaneously, the deleting load-bearing that the regular traffic of UE uses is fallen, retains the relevant bearer that urgency traffic uses.Specifically see the process in the first embodiment, do not repeat them here.

4 ', ServingGW replys and deletes radio bearer response message to MME/SGSN, MME/SGSN initiation network side load deletion flow process, is fallen by the deleting load-bearing that the regular traffic of UE uses, retains the relevant bearer that urgency traffic uses;

5, MME/SGSN initiates radio bearer and deletes flow process, is deleted by the radio bearer of the carrying correspondence of deleting;

6, MME/SGSN sends urgent tracing section updating and accepts message to UE; Successively sequential relationship is not had between step 6 and step 4

7, UE replys urgent tracing section updating to MME/SGSN and completes message.

Also refer to Fig. 9, for, the flow chart of access processing method in the present invention six embodiment, in the present embodiment, MME/SGSN judges whether forbid or roam forbidding by business in this region for UE after receiving the tracing section updating request/Routing Area Update request message of UE transmission, if so, then MME/SGSN refuses the tracing section updating request/Routing Area Update request of UE.UE judges whether to there is urgency traffic after receiving the tracing section updating refusal/Routing Area Update Reject message of MME/SGSN transmission, if existed, then UE sends urgent tracing section updating request/urgent Routing Area Update and accepts message to MME/SGSN.MME/SGSN accepts the urgent tracing section updating request/urgent Routing Area Update request of UE.UE receives the urgent tracing section updating that MME sends and accepts/initiate load bearing deactivation flow process after urgent Routing Area Update accepts message, and the deleting load-bearing that regular traffic user set up uses falls, and retains the relevant bearer that urgency traffic uses.Its concrete implementation procedure is:

1, UE sends tracking area request message to MME/SGSN; For SAE system, UE sends tracing section updating request message to MME; For GPRS/UMTS system, UE sends Routing Area Update request message to SGSN;

2, MME/SGSN receives the tracing section updating request message that UE sends, judge whether forbid or roam forbidding by business in region for UE, if, then MME/SGSN refuses the tracing section updating request of UE, send tracing section updating refuse information to UE, MME/SGSN judges whether UE exists urgency traffic simultaneously, if existed, then MME/SGSN does not delete user's context and the bearer context of UE, waits for the process of UE;

3, UE receives the tracing section updating refuse information that MME/SGSN sends, judge whether UE exists urgency traffic, if there is no, then UE deletes user's context and bearer context, no longer carry out subsequent treatment, if there is urgency traffic in UE, then UE sends urgent tracing section updating request message to MME/SGSN, the urgent access of request, the updating type (UpdateType) in tracing section updating request message also can be set to urgent access (emergencyaccess) and represent urgent access by UE;

4, MME/SGSN accepts the urgent tracing section updating request of UE, replys urgent tracing section updating and accepts message to UE;

5, UE replys urgent tracing section updating and completes message to MME/SGSN;

6, UE retains the emergency bearing that urgency traffic uses, and judges whether UE exists signaling bear, if UE exists signaling bear, then retains signaling bear, and sends deexcitation flow process request message, by other deleting load-bearing to MME/SGSN;

7, MME/SGSN sends deleting bearing request message and initiates network side load deletion flow process to ServingGW, is fallen by the deleting load-bearing of deexcitation;

7 ', ServeringGW replys deleting bearing response message to MME/SGSN;

8, MME/SGSN initiates radio bearer and deletes flow process, is deleted by radio bearer corresponding for deexcitation carrying;

9, MME/SGSN sends deexcitation carrying and accepts message to UE

If there is signaling bear, after urgency traffic completes, UE initiates urgency traffic termination process on signaling bear.

Also referring to Figure 10, is the flow chart of seventh embodiment of the invention access processing method.In the present embodiment, non-3 gpp gateway device judges whether UE is prohibited from entering in this region after receiving the access request message of UE transmission, if so, then and the access request of non-3 gpp gateway device refusal UE.UE judges whether to there is urgency traffic after receiving the access-reject message of non-3 gpp gateway device transmission, if existed, then UE sends urgent access request message to non-3 gpp gateway device.Non-3 gpp gateway device accepts the urgent access request of UE.Non-3 gpp gateway device or UE initiate tunnel and go to connect flow process, and the tunnel resource that regular traffic user set up uses is deleted, and retains the tunnel resource that urgency traffic uses.Detailed process is:

1, UE sends access request message to Non-3GPPGW; For wlan system, non-3 gpp Gateway Network Element is EPDG (evolution packet data gateway, EvolvedPacketDataGateway); For Wimax system, non-3 gpp Gateway Network Element is ASNGW (access business network gateway, AccessServiceNetworkGateway); For cdma system, non-3 gpp Gateway Network Element is AGW (IAD, AccessGateway);

2, Non-3GPPGW performs access authentication and authorization flow, judges whether UE allows access;

If 3 UE are prohibited from entering in region, then Non-3GPPGW refuses the access request of UE, sends access-reject message to UE, and Non-3GPPGW judges whether UE exists urgency traffic, if existed, then non-3 gpp gateway device does not discharge the tunnel resource that UE uses, and waits for the process of UE;

4, UE receives the access-reject message that Non-3GPPGW sends, judge whether self exists urgency traffic, if there is no, the then tunnel resource of UE release use, no longer carry out subsequent treatment, if UE exists urgency traffic, then UE sends urgent access request message to Non-3GPPGW, the urgent access of request, the AccessType in access request message also can be set to emergencyaccess and represent urgent access by UE;

5, Non-3GPPGW receives urgent access request; Send urgent access message to UE;

6, UE or non-3 gpp gateway device retain the tunnel resource that urgency traffic uses, and the tunnel resource used for other business initiates the tunnel resource that tunnel goes linker release use;

7 ', non-3 gpp gateway device transmission tunnel goes to connect report message to AAAServer, and notice tunnel resource is released.AAAServer discharges tunnel resource, then goes back to tunnel and goes to connect report acknowledge message to AAAServer.

It should be noted that, UE also may initiate urgent access process when following: in UE, preservation business is forbidden or roams the area information forbidden, when UE finds to exist in the preservation prohibited area information of new access region at it and UE exists urgency traffic, then UE directly initiates urgent access process and carrys out access network.In this case the process in the same embodiment above of urgent access process process, no longer describes here.

In like manner, the embodiment of the present invention provides subscriber equipment equally needs switch or be reoriented to new region.Namely (Handover) or reorientation (Relocation) is being switched if source Access Network or source core net find that UE switches or access is forbidden to UE in the target area of reorientation in flow process, then source Access Network or source core net judge whether UE exists urgency traffic, if existed, then source issues in the resource information of target side the resource information only comprising urgency traffic and use, these resources of the network reconnection of target side, and the resource information that other business uses will not be carried to target side, these resources are initiated deexcitation flow process by source and are deleted (also can be initiated by UE or target side initiate deexcitation flow process delete) after completing switching.

Refer to Figure 11, be the flow chart of another access processing method that the embodiment of the present invention provides, described method comprises:

Step S111: when subscriber equipment switches to target side network from source network, if the target area of subscriber equipment is prohibited area, then source network judges whether described subscriber equipment exists urgency traffic, if so, then the resource information that described urgency traffic uses is sent to objective network (step S112) by described source network; If not, normal process (step S114)

Step S113: described objective network sets up the resource that urgency traffic uses.

In switching or reorientation flow process, source Access Network or source core net judge that subscriber equipment switches or whether reorientation target area forbids access, if, then source Access Network or source core net judge whether subscriber equipment exists urgency traffic, if exist, then send RELOCATION REQUEST message to objective network, this message comprises the resource that urgency traffic uses; Objective network rebuilds the resource that uses of urgency traffic, and after these resources complete switching, source network or subscriber equipment or objective network are initiated deexcitation flow process and these resources deleted.

Refer to Figure 12 again, eighth embodiment of the invention provides a kind of flow chart of access processing method.In the present embodiment, if source Access Network or source core net find that in reorientation or switching flow UE switches or access is forbidden to UE in the target area of reorientation, then source Access Network or source core net judge whether UE exists urgency traffic, if existed, then delivering in RELOCATION REQUEST message the resource information of only carrying urgency traffic and using, objective network rebuilds these resources after receiving this message.Switched opisthogenesis side joint network or source core net the resource that other business uses is deleted.Its concrete implementation procedure is:

1, source Access Network performs to switch and determines determine whether perform switching.If former connecting system is GPRS, source Access Network is source BSS; If source connecting system is UMTS, source Access Network is source RNC; If source connecting system is SAE, source Access Network is source eNodeB; If source connecting system is Wimax, then source Access Network is BS (BaseStation).Source Access Network according to target area whether be prohibited area, UE whether there is urgency traffic to adjudicate whether allow switch; Co-exist in following several situation;

If there is no the prohibited area information of UE in source Access Network, then source Access Network normal process;

If there is the prohibited area information of UE in source Access Network, then source Access Network judge UE need switch or the target area of reorientation whether in prohibited area, if not in prohibited area, then source Access Network normal process;

If target area is in prohibited area, then source Access Network judges whether UE exists urgency traffic, if UE does not exist urgency traffic, then source Access Network does not allow to perform switching, if UE exists urgency traffic, then source Access Network allows to perform switching;

Source Access Network can use following method, judges whether UE exists urgency traffic, namely judges the radio bearer that UE exists:

Judge the APN that the carrying that UE uses uses, if find to there is specific APN (globallydedicatedemergencyAPN), then source Access Network thinks that UE exists the radio bearer of urgency traffic use, and namely UE exists urgency traffic;

Judge the urgent indicating bit (EmergencyIndication) in the qos parameter that the carrying that UE uses uses, if find that the value that there is urgent indicating bit is YES, then source Access Network thinks that UE exists the radio bearer of urgency traffic use, and namely UE exists urgency traffic;

2, source Access Network sends RELOCATION REQUEST message to source core net, carries " needing the resource that target side creates " cell in message, and " needing the resource that target side creates " cell can be the following two kinds mode:

Only carry the resource information that urgency traffic uses in source Access Network " needs the resource that target side creates " in RELOCATION REQUEST message cell, the resource information that other business uses is not carried;

All resource informations that UE uses are carried in source Access Network " needs the resource that target side creates " in RELOCATION REQUEST message cell.Processed again by source core net;

3, source core net forwards and relocates request-message to target side core net, message comprises " needing the resource that target side creates " cell.Whether " needing the resource that target side creates " cell that source core net sends according to source Access Network, target area are prohibited areas, whether UE exists urgency traffic is made decision, determine the resource whether allowing to switch and need target side to create, comprise following three kinds of situations altogether:

If target area is not prohibited area, then source core net normal process;

If target area is prohibited area, and UE does not exist urgency traffic, then source core net refusal handover request or re-positioning request, reply handoff failure or reorientation failed message are to source Access Network;

If target area is prohibited area, and there is urgency traffic in UE, then source core net allows to carry out switching or reorientation operation, forward RELOCATION REQUEST message, and only carry the resource information that urgency traffic uses in " needing the resource that the target side creates " cell in RELOCATION REQUEST message, do not carry the resource information that other business uses.Obtain " needing the resource that target side creates " cell that source core net can be carried from source Access Network these information or oneself from urgency traffic use carrying obtain these information; Or carry all resource informations that UE uses in the cell that " needs the resource that target side creates ", complete by target side the process switching laggard line correlation; Or carry all resource informations that UE uses in the cell that " needs the resource that target side creates ", but carry in message and indicate that resource that target side core net urgency traffic uses needs to create and other resource does not need to create, can the process of the following two kinds mode:

Increase in the message and set up indicating bit (EstablishmentFlag), indicating bit is True, represent that the resource corresponding to urgency traffic needs to create in target side, indicating bit is False, represents that the resource corresponding to urgency traffic does not need to create in target side;

Increase the cell that resource sets up priority (EstablishmentPrioritization) in the message, the resource of this cell value corresponding to 0 expression urgency traffic does not need in target side to create, other value represents that the resource corresponding to urgency traffic needs in target side to create, be worth larger, represent that the priority of corresponding asset creation is higher;

4, target core network transmission re-positioning request or handover request message are to target access network.The information request target side joint carried in " needing the resource that target side creates " cell that target core network is carried according to source networks and sets up source access network resource corresponding to these resources.If target access system is GPRS, target access network is target side BSS; If target access system is UMTS, target access network is Target RNC; If target access system is SAE, target access network is target eNode B; If target access system is Wimax, then target access network is target BS (base station, BaseStation);

5, target side joint networking reply re-positioning request confirmation or switching request acknowledgement message are to target side core net;

6, target side core net delivers relocation response message to source core net;

7, the transmission reorientation order of source core net or switching command message are to source Access Network, " ForbiddenAccessFlag " field is increased in command messages, if the value of this field is True, then show that UE forbids access in target area, if the value of this field is False, then show that UE normally accesses in target area;

8, reorientation order or switching life message are sent to UE by source Access Network, and notice UE switches;

9, UE is switched to target side connecting system, transmission handovers complete message to target side joint and networks, if UE finds that " ForbiddenAccessFlag " is masked as True in switching command message, then UE only retains the resource that urgency traffic uses and the resource that local other business of release uses;

10, the networking of target side joint sends reorientation and completes message to target side core net;

11, reorientation is completed message and is forwarded to source core net by target side core net;

12, target core network initiates bearing modification flow process, the resource that modifying target side is set up;

13, source core net receives target side core net and sends " delivering re-positioning request " message, if find that UE forbids access in target area, then source core net initiates deleting load-bearing flow process, retains the resource that urgency traffic uses, and deletes the resource that other business uses.

According to the method that above-described embodiment provides, subscriber equipment region switch or reorientation process in, if subscriber equipment is prohibited in target area, the process of urgency traffic can be realized equally.

It should be noted that, other resource delete processing outside the resource that urgency traffic uses also can be processed in the access process after having switched (as TAU flow process) by UE or target side core net, concrete handling process describes see above embodiment, no longer describes here.

Correspondingly, the embodiment of the present invention provides a kind of access processing unit, this device is used for processing during the equipment access network of family, its structural representation refers to Figure 13, described device comprises: access request receiving element 131, connect into analysis unit 132, urgency traffic judging unit 133 and urgency traffic processing unit 134, preferably, described device also comprises radio bearer delete cells 135.Wherein, described access request receiving element 131, for receiving the access request that subscriber equipment is initiated; Described connect into analysis unit 132, for analyzing the access request that described access request receiving element receives, judges whether subscriber equipment is positioned at prohibited area; Described urgency traffic judging unit 133, for the judged result according to connect into analysis unit, judges when subscriber equipment is positioned at prohibited area whether described subscriber equipment exists urgency traffic; Described urgency traffic processing unit 134, for the judged result according to described urgency traffic judging unit, accepts the access of subscriber equipment, and retains the resource of urgency traffic use described in this subscriber equipment.

Wherein, described urgency traffic judging unit 133 includes: Access Point Name judgment sub-unit 1331 and/or urgent indicating bit judgment sub-unit 1332 (in figure shown in dotted line).Access Point Name judgment sub-unit 1331, for the judged result according to connect into analysis unit, judges whether the carrying Access Point Name that described subscriber equipment uses is particular access point name, and the subscriber equipment that there is particular access point name is judged as there is urgency traffic.Described urgent indicating bit judgment sub-unit 1332, for the judged result according to connect into analysis unit, judge whether there is urgent indicating bit in the bearer quality of service parameter that described subscriber equipment uses, and the subscriber equipment that there is urgent indicating bit is judged as there is urgency traffic.

Wherein, described access request is tracing section updating request or Routing Area Update request.

Urgency traffic processing unit 134 includes: network side resource releasing unit 1341, resource process subelement 1342, signaling bear judgment sub-unit 1343 and/or signaling bear retain subelement 1344.

The processing mode that described device realizes urgency traffic is as follows:

Access request receiving element 131 receives the access request that subscriber equipment is initiated, and described access request is sent to connect into analysis unit 132, and the result of analysis is sent to urgency traffic judging unit 133 by described connect into analysis unit 132;

The result that urgency traffic judging unit 133 is forbidden according to the access request received or judgement, use Access Point Name judgment sub-unit 1331 or urgent indicating bit judgment sub-unit 1332, judge whether subscriber equipment exists urgency traffic, and judged result is sent to urgency traffic processing unit 134;

Urgency traffic processing unit 134 receives the judged result of urgency traffic, wherein

Network side resource releasing unit 1341 accepts the request that subscriber equipment sends, and initiates network side resource release flow, deletes the resource that described subscriber equipment normally uses; Resource process subelement 1342, for when judged result is for existing urgency traffic, accepts the access request that subscriber equipment sends, and retains the resource of this user equipment urgent business use; Signaling bear judgment sub-unit 1343 judges whether subscriber equipment exists signaling bear, and judged result is sent to signaling bear reservation subelement 1344; Signaling bear retains subelement 1334 according to described judged result, retains the signaling bear of subscriber equipment;

After Internet resources releasing unit 1341 initiates network side resource release flow, radio bearer delete cells 1345 is initiated radio bearer and is deleted flow process, is deleted by radio bearer corresponding for releasing resource.

Described device can also comprise: network side separation processing unit, for after described urgency traffic terminates, initiates user's separating treatment, and is separated from network by described subscriber equipment.

Described device is self-existent physical entity, or is integrated in Mobility Management Entity or gateway device.

In addition, the embodiment of the present invention can also provide another kind of subscriber equipment, for initiating access request to network side, and is linked in communication network and communicates, its structural representation refers to asks Figure 14, and described device comprises: urgent access request initiates unit 141 and urgency traffic stick unit 142.Described urgent access request initiates unit 141, when initiating access request and refused by network side in prohibited area, for initiating urgent access request to network side element in prohibited area; Described urgency traffic stick unit 142, the resource that the user equipment urgent business for retaining described initiation access request uses, the resource that release regular traffic uses.

Described device also comprises: refusal judging unit or access region judging unit.Wherein, described refusal judging unit, for when receiving the refuse information of network side element feedback, sentencing this subscriber equipment according to described refuse information and whether there is urgency traffic, and the judgement that there is urgency traffic is sent to urgent access request to initiate unit; Or access region judging unit, judges whether the region accessed is prohibited area, if so, then the urgent access request of carrying urgent access request or carrying emergency access type is sent to urgent access request initiation unit.

Described subscriber equipment also comprises: user side releasing unit, for after the resource of urgency traffic stick unit reservation urgency traffic use, and the resource that release regular traffic uses.

Described subscriber equipment also comprises: user side separative element, for after urgency traffic terminates, initiates user's separating treatment, and is separated from network by described subscriber equipment.

The embodiment of the present invention provides again a kind of access processing unit, and as shown in figure 15, described device comprises its structural representation: urgency traffic judging unit 151, urgency traffic initiate unit 152 and urgent resource sets up unit 153.Wherein, described urgency traffic judging unit 151, when subscriber equipment switches to target side network from source network, for judging target area is whether the subscriber equipment of prohibited area exists urgency traffic, and to send be the judged result of urgency traffic; Described urgency traffic initiates unit 152, for sending the resource information of urgency traffic use after the judged result described in receiving being urgency traffic to objective network; Described urgent resource sets up unit 153, and the resource information that the described urgency traffic for sending according to urgency traffic transmitting element uses sets up the resource that described urgency traffic uses.

Described device also comprises: resource judgment unit, cell for setting up precedence information according to indicating bit or resource in the reorientation received or handover request judges whether to set up the resource of urgency traffic use, and judged result is sent to urgent resource to set up unit.

Described access processing unit also comprises: first switches preparatory unit, when judging that described subscriber equipment exists urgency traffic for the source access network element in source network, allows this subscriber equipment to switch, and sends switching message to source mobile management network element.

Described access processing unit also comprises: second switches preparatory unit, when judging that described subscriber equipment exists urgency traffic for the source mobile management network element in source network, allow described subscriber equipment to switch, and send switching message to target side mobile management network element.

In described device or system, the function and efficacy of unit refers to implementation procedure corresponding in said method, does not repeat them here.

Refer to Figure 16 again, ninth embodiment of the invention provides a kind of flow chart of access processing method.In the present embodiment, after UE moves to prohibited area, network side element judges whether UE exists urgency traffic.If UE exists urgency traffic, then network side element accepts the access of UE.When network side element finds that the urgency traffic of UE stops, network side element or UE initiate user's separation process, are separated by UE from network.Its concrete implementation procedure is:

1, UE transmission tracing section updating request message or Routing Area Update request message are to network side element.For E-UTRAN network, its network side element is MME; For GERAN/UTRAN network, its network side element is SGSN;

2, network side element sends location update message to HSS;

3.HSS sends and inserts subscription data message to network side element, carry the subscription data of UE in message, comprise the roaming position prohibited area " forbiddenlocationareasforroaming " of UE or position prohibited area " forbiddenlocationareasforregionalprovisionofservice " information of whole feed region;

3 ', described network side element is replied to HSS and is inserted subscription data acknowledge message.

4, HSS home position upgrades acknowledge message to network side element.

5, network side element is according to the access region of the subscription data of user and user, judges whether forbid or roam forbidding by business in this region for UE, and the situation that may exist is:

Forbid or roam forbidding if UE is not business in this region, then network side element normal process; If UE forbids or roam forbidding at this area traffic, then network side element judges whether UE exists urgency traffic; If UE does not have urgency traffic, then network side element refuses tracing section updating request or the Routing Area Update request of UE, process ends (this figure does not show).

If UE forbids or roams forbidding at this area traffic, but there is urgency traffic in this UE, then network side element accepts the tracing section updating request/Routing Area Update request of UE, and sends tracing section updating to UE and accept message or Routing Area Update accepts message;

Tracing section updating accepts message or Routing Area Update and accepts to carry in message the information that UE forbids accessing in region, can realize in the following way:

1) accept message or Routing Area Update at tracing section updating to accept to increase " ForbiddenAccessFlag " field in message, if the value of this field is True, then show that UE forbids access in this region, if the value of this field is False, then show that UE normally accesses in this region;

2) accept message or Routing Area Update accepts to carry " ForbiddenTA " or " ForbiddenLA " field in message at tracing section updating, in this field, carry the area information that UE forbids accessing, as UE forbids access in which TA region.

UE judges that tracing section updating accepts the information forbidding in region that message or Routing Area Update accept in message accessing, if forbid that accessing flag indicates that UE forbids that in region the region of access or the current access of UE is in prohibited area, then UE retains the emergency bearing that urgency traffic uses, judge whether UE exists signaling bear simultaneously, if UE exists signaling bear, then retain signaling bear;

6, after urgency traffic completes, UE sends PDN and goes connection request message to network side element, the bearing resource release that request urgency traffic uses.

7, network side element sends deleting bearing request message to ServingGW, asks the bearing resource used by urgency traffic to be deleted.

8, ServingGW sends deleting bearing request message to PDNGW.PDNGW returns deleting bearing response message to ServingGW (namely 8 ') after deleting the bearing resource of urgency traffic use.

9, ServingGW returns deleting bearing response message to network side element.

10, network side element initiates radio bearer delete program, the radio bearer resources release used by urgency traffic.

The bearing resource that urgency traffic uses is released rear user's separable programming and is performed.If user's separable programming is initiated by network side, then perform step 11 to step 13; If user's separable programming is initiated by UE, then perform step 14 to step 16;

If 11, network side element find bearing resource that the urgency traffic of UE uses be released and the region accessed now of UE for after prohibited area, network side element sends detach request message to UE, asks UE to be separated from network.

12, UE accepts detach request message, replys separation and accepts message to network side element.

13, network side element initiates deleting load-bearing program, deletes the bearing resource that non-emergent business uses.Its process is similar to the process of step 7 to step 10, is not described in detail here.

If 14, UE find bearing resource that the urgency traffic of UE uses be released and the region accessed now of UE for after prohibited area, UE sends detach request message to network side element, asks UE to be separated from network.

15, network side element initiates deleting load-bearing program, deletes the bearing resource that non-emergent business uses.Its process is similar to the step 7 of the present embodiment to the process of step 10, is not described in detail at this.

16, network side element accepts detach request message, replys separation and accepts message to UE.

It should be noted that, the resource delete processing that non-emergent business uses also can process in TAU or RAU flow process, and concrete handling process describes see above embodiment, no longer describes at this.

Refer to Figure 17 again, tenth embodiment of the invention provides a kind of flow chart of access processing method.In the present embodiment, after UE moves to prohibited area, network side element judges whether UE exists urgency traffic.If UE exists urgency traffic, then network side element accepts the access of UE.When network side element finds that the urgency traffic of UE stops, network side element or UE initiate user's separation process, are separated by UE from network.Its concrete implementation procedure is:

1, UE sends access request to non-3 gpp gateway device (Non-3GPPGW); For wlan system, non-3 gpp Gateway Network Element is EPDG (evolution packet data gateway, EvolvedPacketDataGateway); For Wimax system, non-3 gpp Gateway Network Element is ASNGW (access business network gateway, AccessServiceNetworkGateway); For cdma system, non-3 gpp Gateway Network Element is AGW (IAD, AccessGateway).

2, Non-3GPPGW performs access authentication and authorization flow, judges whether UE allows access;

If 3 UE are prohibited from entering in this region, then Non-3GPPGW judges whether UE exists urgency traffic, if there is no, the then access of non-3 gpp gateway refusal UE, if UE exists urgency traffic, then non-3 gpp gateway accepts the access request of UE, sends access and accepts message to UE.

Accept to carry in message the information that UE forbids accessing in region, can realize in the following way:

1) accept to increase " ForbiddenAccessFlag " field in message in access, if the value of this field is True, then show that UE forbids access in this region, if the value of this field is False, then show that UE normally accesses in this region;

2) accept in message, to carry " ForbiddenLA " field in access, in this field, carry the area information that UE forbids accessing, as UE forbids access in which band of position.

UE judges the information accepting to forbid in the region in message accessing, if forbid that accessing flag indicates that UE forbids that in region the region of access or the current access of UE is in prohibited area, then UE retains the emergency bearing that urgency traffic uses, judge whether UE exists signaling bear simultaneously, if UE exists signaling bear, then retain signaling bear;

4, urgency traffic complete after UE send PDN go connection request message to Non-3GPPGW, request urgency traffic use bearing resource discharge.

5, non-3GPPGW sends agent binding update messages to PDNGW, the resource release that urgency traffic uses by request PDNGW.PDNGW discharges the resource that urgency traffic uses, and replys proxy binding acknowledgment messages to non-3GPPGW (namely 5 ').

6, non-3GPPGW initiates radio bearer delete program, the radio bearer resources that release urgency traffic uses.

7, non-3GPPGW returns PDN and goes connection to accept message to UE.

The bearing resource that urgency traffic uses is released rear user's separable programming and is performed.If user's separable programming is initiated by non-3GPPGW, then perform step 8 to step 10; If user's separable programming is initiated by UE, then perform step 11 to step 13.

If 8, non-3GPPGW find bearing resource that the urgency traffic of UE uses be released and the region accessed now of UE for after prohibited area, non-3GPPGW sends detach request message to UE, asks UE to be separated from network.

9, UE accepts detach request message, replys separation and accepts message to non-3GPPGW.

10, non-3GPPGW initiates deleting load-bearing program, deletes the bearing resource that non-emergent business uses.Its process is similar to the process of the step 5 in the present embodiment to step 6, is not described in detail at this.

If 11, UE find bearing resource that the urgency traffic of UE uses be released and the region accessed now of UE for after prohibited area, UE sends detach request message to non-3GPPGW, asks UE to be separated from network.

12, non-3GPPGW initiates deleting load-bearing program, deletes the bearing resource that non-emergent business uses.Its process is similar to the process of the step 5 in the present embodiment to step 6, is not described in detail at this.

13, non-3GPPGW accepts detach request message, replys separation and accepts message to UE.

It should be noted that, the resource delete processing that non-emergent business uses also can process in access process, and concrete handling process describes see above embodiment, no longer describes at this.

Access processing method in the above-mentioned prohibited area provided for the embodiment of the present invention and device; and the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles 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 (11)

1. an access processing method, is characterized in that, comprising:

Mobility Management Entity MME receives the tracing section updating request that in prohibited area, subscriber equipment is initiated;

Described MME judges whether described subscriber equipment exists urgency traffic:

When determining that described subscriber equipment exists described urgency traffic, described MME:

Accept the tracing section updating request that described subscriber equipment sends;

Retain the resource that described urgency traffic uses; With

The resource that release regular traffic uses;

When determining that described subscriber equipment does not exist described urgency traffic, described MME:

Refuse the tracing section updating request that described subscriber equipment sends;

Wherein, described MME judges whether described subscriber equipment exists described urgency traffic, specifically comprises:

Whether have the emergency bearing of described urgency traffic use according to the subscriber equipment in described prohibited area, described MME judges whether the subscriber equipment in described prohibited area exists described urgency traffic.

2. access processing method according to claim 1, is characterized in that, also comprise:

Determine whether described subscriber equipment exists business and forbid or roam forbidding according to the tracing section updating request that described subscriber equipment is initiated.

3. access processing method according to claim 1 or 2, is characterized in that, when described MME retains the resource of described urgency traffic use, described method also comprises:

Judge whether described subscriber equipment exists signaling bear, if so, then retain described signaling bear.

4. access processing method according to claim 3, is characterized in that, describedly judges whether subscriber equipment exists signaling bear, specifically comprises:

Judge that described subscriber equipment uses whether the value of Signaling Flag position in bearer context is true, if very, then there is described signaling bear in described subscriber equipment.

5. access processing method according to claim 1, is characterized in that, when described MME accepts the tracing section updating request that described subscriber equipment sends, described method also comprises:

That feeds back described tracing section updating request to described subscriber equipment accepts message, described accept that message comprises described subscriber equipment forbid access information, for described subscriber equipment according to described in forbid the resource that access information retains described urgency traffic and uses.

6. an access processing unit, is characterized in that, comprising:

Access request receiving element, for receiving the tracing section updating request that subscriber equipment is initiated;

Connect into analysis unit, for judging whether described subscriber equipment is positioned at prohibited area;

Urgency traffic judging unit, for when described connect into analysis unit determines that described subscriber equipment is positioned at prohibited area, judges whether described subscriber equipment exists urgency traffic;

Urgency traffic processing unit, for when described urgency traffic judging unit determines that described subscriber equipment exists described urgency traffic, accept the tracing section updating request that described subscriber equipment sends, retain the resource that described urgency traffic uses, and discharge the resource of regular traffic use;

Wherein, described urgency traffic judging unit, specifically for:

When described connect into analysis unit determines that described subscriber equipment is positioned at prohibited area, whether there is according to the subscriber equipment in described prohibited area the emergency bearing of described urgency traffic use, judge whether the subscriber equipment in described prohibited area exists described urgency traffic.

7. access processing unit according to claim 6, is characterized in that, described connect into analysis unit, specifically for:

Determine whether described subscriber equipment exists business and forbid or roam forbidding according to the tracing section updating request that described subscriber equipment is initiated.

8. the access processing unit according to claim 6 or 7, is characterized in that, described urgency traffic processing unit comprises:

Signaling bear judgment sub-unit, for judging whether described subscriber equipment exists signaling bear, and sends the judged result that there is signaling bear;

Signaling bear retains subelement, for retaining the signaling bear of described subscriber equipment according to described judged result.

9. an access processing unit, is characterized in that, comprising:

The unit of the tracing section updating request that subscriber equipment is initiated in prohibited area is received for Mobility Management Entity MME;

Judge whether described subscriber equipment exists the unit of urgency traffic for described MME;

For when determining that described subscriber equipment exists described urgency traffic, described MME accepts the tracing section updating request that described subscriber equipment sends, and retains the resource that described urgency traffic uses, and the unit of the resource of release regular traffic use;

For when determining that described subscriber equipment does not exist described urgency traffic, described MME refuses the unit of the tracing section updating request that described subscriber equipment sends;

Wherein, describedly judge whether described subscriber equipment exists the unit of urgency traffic for MME, specifically for:

Whether have the emergency bearing of described urgency traffic use according to the subscriber equipment in described prohibited area, described MME judges whether the subscriber equipment in described prohibited area exists described urgency traffic.

10. device according to claim 9, is characterized in that, also comprises:

Tracing section updating request for initiating according to described subscriber equipment determines whether described subscriber equipment exists business and forbid or roam the unit forbidden.

11. devices according to claim 9 or 10, is characterized in that, also comprise:

For judging whether described subscriber equipment exists signaling bear, if so, then retain the unit of the signaling bear of described subscriber equipment.