CN101742453B

CN101742453B - Access control method, system and network element

Info

Publication number: CN101742453B
Application number: CN2008102171930A
Authority: CN
Inventors: 吴问付; 朱奋勤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-11-06
Filing date: 2008-11-06
Publication date: 2013-01-09
Anticipated expiration: 2028-11-06
Also published as: CN101742453A

Abstract

The invention relates to the technical field of communication, in particular to an access control method, an access control system and an access control network element. The invention aims to solve the problem that part of emergency service demands cannot be satisfied due to the deletion of other non-emergency service bearers when User Equipment (UE) moves from a normal region to a forbidden region and does not have a signaling bearer. The access control method provided by the invention comprises the following steps of: receiving an access request from the UE; determining that the current access region of the UE is the forbidden region and a user needs an emergency service; and initiating a signaling bearer establishing process to establish the signaling bearer when the UE does not has the signaling bearer. The invention also provides an access control system and an access control network element. The access control method provided by the invention ensures the satisfaction of a user emergency calling service demand when the UE moves from the normal region to the forbidden region.

Description

The method of access control, system and access control network element

Technical field

The present invention relates to communication technical field, relate in particular to method, system and the access control network element of access control.

Background technology

At present, 3GPP is organized in research IP Multimedia System (IP Multimedia Subsystem, IMS) urgent call (Emergency Call, EMC) business, so-called emergence call service, be beneficial to exactly IP connection access network (IP-Connectivity Access Network, IP-CAN is such as networks such as GPRS/UMTS/E-UTRAN/WLAN/Wimax) and IMS system and provide emergence call service (such as alert service and fire alarm business etc.) for the user.

For emergence call service, even the user at prohibited area (such as roaming prohibited area (forbidden location areas for roaming) or professional prohibited area (forbidden location areas for regional provision of service) or CSG (closed user group, Closed Subscriber Group) confined area etc., be that the user can not use normal business in these zones, also being referred to as confined area) time all needs allow to use, that is to say that the user also can use emergence call service under above-mentioned specific scene.In existing standard, require when UE moves to a prohibited area from a normal region, network side only keeps the urgency traffic carrying, deletes other non-emergent service bearers.

When UE moves to a prohibited area from a normal region, network side can be deleted other non-emergent service bearers of UE, when if UE does not have signaling bear (in the prior art, signaling can be transmitted by default bearer etc.), because the non-emergent service bearer of UE is all deleted, to cause the urgency traffic of UE to finish by signaling control, in addition, after urgency traffic finishes, because the carrying between UE and the network side is all deleted, to cause UE in this prohibited area, again to initiate urgency traffic, can not receive the callback at urgent center, not satisfy the requirement of urgency traffic.

In addition, when UE when a prohibited area carries out urgent call, how to limit the foundation request that UE can not receive other business, perhaps after the user finishes urgent call, next the user also may carry out urgent call again, perhaps receives the callback of EC, how to guarantee that the business that UE can accept business the request of setting up and only accept urgency traffic sets up request, refuse the foundation request of other business, also do not have at present mechanism to address this problem.

Summary of the invention

An aspect of the embodiment of the invention provides a kind of method of access control, comprising:

Receive the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic; When subscriber equipment does not have signaling bear, initiate the signaling bear Establishing process, set up signaling bear.Described initiation signaling bear Establishing process, the process of setting up signaling bear can comprise: core management network element is the starting update load bearing flow process in the carrying of UE, and in the message that sends to gateway SGW or grouped data network gateway PGW, carrying indication information, being used to indicate SGW or PGW is signaling bear or carrying that can only command transmitting with described bearing modification; Perhaps core management network element is initiated the load creating flow process, and carry indication information in the message of SGW or PGW transmission, is used to indicate SGW or PGW and creates signaling bear; Perhaps core management network element and PCRF are mutual, obtain the PCC rule of signaling bear; According to described PCC rule, core management network element starting update load bearing flow process is signaling bear with the bearer update of UE, perhaps initiates the load creating flow process, creates signaling bear.

The method of the access control that provides by the embodiment of the invention, when the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, when if subscriber equipment does not have signaling bear, initiate the signaling bear Establishing process, set up signaling bear, thereby so that UE can transmit signaling data by the signaling bear of setting up, finish current urgency traffic, after the urgency traffic technology, the signaling bear of this foundation can also be used to receive the foundation request of the call back service at the foundation request of the urgency traffic that UE initiates again and urgent center, thereby so that UE again initiates urgency traffic and receives the call back service at urgent center in this prohibited area urgency traffic demand be achieved.

The embodiment of the invention a kind of access control system is provided on the other hand, this system comprises core management network element and PGW, wherein core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, starting update load bearing flow process in the carrying of UE, and in the message that sends to PGW, carry indication information, indication PGW is signaling bear or carrying that can only command transmitting with described bearing modification, perhaps initiate the load creating flow process, and in the message that sends to PGW, carrying indication information, indication PGW creates signaling bear; PGW is used for setting up signaling bear according to the core management network element indication.

The embodiment of the invention a kind of access control system also is provided on the other hand, comprise core management network element, SGW and PCRF, wherein core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, starting update load bearing flow process in the carrying of UE, and in the message that sends to SGW, carry indication information, indication SGW is signaling bear or carrying that can only command transmitting with described bearing modification, perhaps initiate the load creating flow process, and in the message that sends to SGW, carrying indication information, indication SGW creates signaling bear; SGW is for according to the core management network element indication, and to the PCC rule of PCRF demand signalling carrying, and according to the PCC rule of obtaining, starting update load bearing flow process or establishment carrying flow process are set up signaling bear; PCRF is used for the request according to SGW, the PCC rule of signaling bear is set, and sends to SGW.

The embodiment of the invention a kind of access control system also is provided on the other hand, comprise core management network element and PCRF, wherein said core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, PCC rule to the carrying of PCRF demand signalling, thereby obtain the PCC rule of signaling bear, and according to described PCC rule, initiate the bearer update flow process, be signaling bear with the bearer update of UE, perhaps initiate the load creating flow process, create signaling bear; PCRF is used for the request according to core management network element, the PCC rule of signaling bear is set, and sends to core management network element.

The embodiment of the invention a kind of core management network element also is provided on the other hand, this core management network element comprises receiving element, the unit is set up in determining unit and carrying, wherein receiving element is used for receiving the access request of subscriber equipment, determining unit is used for determining that the zone of the current access of subscriber equipment is that prohibited area and user exist urgency traffic, carrying is set up the unit and is used for determining the zone of the current access of subscriber equipment when determining unit to be that prohibited area and user are when existing urgency traffic, determine that subscriber equipment does not have signaling bear, then initiate the signaling bear Establishing process, set up signaling bear.Carrying is set up the unit and is comprised: the bearer update subelement, be used for starting update load bearing flow process in the carrying of UE, carrying indication information in the message that sends to SGW or PGW, being used to indicate SGW or PGW is signaling bear or carrying that can only command transmitting with described bearing modification; Perhaps the load creating subelement is used for initiating the load creating flow process, carry indication information in the message of SGW or PGW transmission, is used to indicate SGW or PGW and creates signaling bear.

The core management network element that the embodiment of the invention provides and access control system have been realized access control relevant to urgency traffic in the prohibited area under the heterogeneous networks scene.When the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, when if subscriber equipment does not have signaling bear, initiate the signaling bear Establishing process, set up signaling bear, thereby so that UE can transmit signaling data by the signaling bear of setting up, finish current urgency traffic, after the urgency traffic technology, the signaling bear of this foundation can also be used to receive the foundation request of the call back service at the foundation request of the urgency traffic that UE initiates again and urgent center, thereby so that UE again initiates urgency traffic and receives the call back service at urgent center in this prohibited area urgency traffic demand be achieved.

Description of drawings

The Organization Chart of the evolvement network that Fig. 1 provides for the embodiment of the invention.

The flow chart of the connection control method that Fig. 2 provides for the embodiment of the invention.

The Serving GW that Fig. 3 provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of a kind of connection control method in the GTP situation.

The Serving GW that Fig. 4 provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of another kind of connection control method in the GTP situation.

The Serving GW that Fig. 5 provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of a kind of connection control method in the PMIP situation.

The Serving GW that Fig. 6 provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of another kind of connection control method in the PMIP situation.

The non-3GPP GW that Fig. 7 provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of another kind of connection control method in the PMIP situation.

The flow chart of another connection control method that Fig. 8 provides for the embodiment of the invention.

The flow chart of another connection control method that Fig. 9 provides for the embodiment of the invention.

The schematic diagram of a kind of access control system that Figure 10 provides for the embodiment of the invention.

The schematic diagram of the another kind of access control system that Figure 11 provides for the embodiment of the invention.

The schematic diagram of the another kind of access control system that Figure 12 provides for the embodiment of the invention.

The schematic diagram of the core management network element that Figure 13 A to Figure 13 C provides for the embodiment of the invention.

The schematic diagram of the access control network element that Figure 14 A to Figure 14 D provides for the embodiment of the invention.

Embodiment

A kind of brand-new evolvement network that the network system that embodiments of the invention are used is mainly being studied based on 3GPP, as shown in Figure 1, the embodiment of the invention has provided a kind of Organization Chart of evolvement network, comprising:

The UMTS Terrestrial radio access network of evolution (E-UTRAN, Evolved UMTS Terrestrial RadioAccess Network) is used for realizing all and the wireless relevant function of evolvement network;

Mobile management network element (MME, Mobility Management Entity) is responsible for the mobile management of chain of command, comprises the management of user's context and mobile status, distributing user temporary identity sign etc.;

Gateway (SGW, Serving Gateway) is the user's face anchor point between the 3GPP access network, stops the interface of E-TURAN;

Grouped data network gateway (PGW, Packet Data Network Gateway) is user's face anchor point between 3GPP access network and the non-3 GPP access network network, stop and external packet data network (PDN, Packet Data Network) interface, PGW is in PCC (strategy and charging control, Policy and ChargingControl) also is described as strategy and charge execution function network element (PCEF in the framework, Policy and ChargingEnforcement Function), implementation strategy carry out, based on functions such as flow based charging;

"Policy and Charging Rules Function network element (PCRF, Policy and Charging Rule Function) is used for policy control decision and flow based charging control function;

Home network server (HSS, Home Subscriber Server) is used for storing user subscription information;

UMTS Terrestrial radio access network (UTRAN, UMTS Terrestrial Radio AccessNetwork), GSM EDGE Radio Access Network (GERAN, GSM/EDGE Radio AccessNetwork), be used for realizing all and the wireless relevant function of existing GPRS/UMTS network;

Service universal grouping wireless business supporting node (SGSN, Serving GPRS Supporting Node) is used for realizing the functions such as GPRS/UMTS network routing forwarding, mobile management, session management and user profile storage;

Non-3GPP IP access network (Non-3GPP IP Access), it mainly is the access network of some non-3GPP tissue definition, such as WLAN (wireless local area network) (WLAN, Wireless Local Area Network), micro-wave access global inter communication (Wimax, Worldwide Interoperability for Microwave Access), code division multiple access access networks such as (CDMA, Code Division Multiple Access);

Authenticating, authorize accounting server (AAA Server, Authentication, Authorization andAccounting Server) is used for UE is carried out access authentication, mandate and billing function.

Need to prove that this framework only is an example, along with network evolution and different application scenarioss, the function of each entity, title and annexation etc. may change, and the embodiment of the invention does not limit the concrete network architecture.

Core management network element described in the embodiment of the invention comprises mobile management network element MME, service universal grouping wireless business supporting node SGSN or the non-3GPP Gateway Network Element (non-3GPPGW in the evolvement network, also can be referred to as MAG (Mobile Access Gateway, Mobile Access Gateway)), wherein non-3GPP GW be used for to realize the functions such as mobile management, session management of non-3GPP network.

For wlan network, non-3GPP GW can be evolution packet data gateway (EPDG, EvolvedPacket Data Gateway); For the Wimax network, non-3GPP GW can be access business network gateway (Access Service Network Gateway, ASN GW); For cdma network, non-3GPPGW can be IAD (Access Gateway, AGW); For the HRPD network, non-3GPP GW can be high-speed packet data service gateway (HSGW, HRPD Serving Gateway).

Shown in Figure 2, the flow chart of the connection control method that provides for the embodiment of the invention comprises:

201, receive the access request of subscriber equipment;

203, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic;

205, when subscriber equipment does not have signaling bear, initiate the signaling bear Establishing process, set up signaling bear.

In the embodiment of the invention, initiate the signaling bear Establishing process, set up signaling bear and can realize by following several modes:

Starting update load bearing flow process in the carrying of UE is signaling bear with this bearer update; Perhaps

Starting update load bearing flow process in the carrying of UE, with this bearer update be can only command transmitting carrying; Perhaps

Initiate the carrying Establishing process, set up a signaling bear.

Below by different application scenarioss embodiments of the invention are described.

Interface between concrete application scenarios 1:Serving GW and the PDN GW uses GTP (GPRS Tunnel Protocol, GPRS Tunneling Protocol)

Shown in Figure 3, the Serving GW that provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of a kind of connection control method in the GTP situation, wherein core management network element is mobile management network element MME or SGSN, and the method for this access control comprises:

301, UE is moved to prohibited area.

For example, more new technological process (such as tracing section updating flow process (TAU) etc.) UE to prohibited area of migration or access network element initiate to switch UE to prohibited area of (Handover) flow process migration to the UE launch position.Under the both of these case, the access network of this prohibited area all can receive the access request of UE.

Need to prove, the UE launch position is more during new technological process, also may there be carrying in UE, do not carry out special processing such as network side when switching, resource is all created, the UE launch position is more processed during new technological process after switching is finished, and UE was in connected state and may has urgency traffic this time; Perhaps, for EC can be after urgent call finishes can callback UE, the carrying that urgent call is used in a period of time after urgent call finishes is not deleted, but the state of UE might become the Idle state, also can trigger position under this scene new technological process more.

302, after core management network element receives the access request of UE, the zone of determining the current access of UE is that prohibited area and UE exist EMC professional for UE, then core management network element determines whether UE exists signaling bear, described signaling bear is this carrying command transmitting, such as SIP (Session initiation Protocol, SessionInitiation Protocol) signaling, DNS (name server, Domain Name Server) signaling or DHCP (DHCP, Dynamic Host Configuration Protocol) signaling, if there is signaling bear in UE, then core management network element keeps signaling bear and emergency bearing, and other carrying can be deleted by core management network element (sending the load bearing deactivation flow process such as core management network element) or be hung up (other carryings being hung up such as core management network element notice Serving GW).If core management network element finds that there is not signaling bear in UE, then core management network element keeps emergency bearing, initiate the bearer update flow process in the carrying of UE simultaneously, for example, the default bearer of UE, be signaling bear with this bearer update, other carrying is deleted or is hung up by core management network element.Core management network element sends more new bearer request (Update BearerRequest) message or the request bearing resource is revised (Request Bearer Resource Modification) message to Serving GW, Serving GW sends and upgrades bearing request message or ask bearing resource to revise message to PDN GW, and in message, carry indication information, being used to indicate PDN GW is signaling bear with this bearer update.This indication information can comprise:

More new bearer request or request bearing resource are revised the QCI that carries in the message, and this QCI is set to Signalling; Perhaps,

More new bearer request or request bearing resource are revised the QoS (quality of service, Qualityof Service) that carries in the message, and carry signaling indication (Signalling Indication) information among the QoS.

Core management network element also can carry the second indication information in this message, be used to indicate follow-up network element and only accept the foundation request of urgency traffic, refuse the foundation request of other business, follow-up network element can be such as PDN GW or PCRF or AF (Application Function, the application function network element, the business of being primarily implemented in is set up provides business information to functions such as PCRF in the process, such as (the Proxy Call Session Control Function network element of the P-CSCF in the IMS system, Proxy Call Session Control Function)) etc., wherein, PDNGW can be after receiving the message that comprises the second indication information that core management network element sends, with PCRF reciprocal process in, the message that comprises described the second indication information can be sent to PCRF; PCRF can be after receiving the message that comprises the second indication information, with AF reciprocal process in, the message that comprises described the second indication information can be issued AF.The second indication information can comprise:

In upgrading bearing request message or request bearing resource modification message, carry limited indication (Restricted Indication) information, the follow-up network element of this information indication: current zone is prohibited area for UE, and UE can only use urgency traffic in this zone; Perhaps

More carrying urgent use indication (Emergency Usage Indication) information in new bearer request or the request bearing resource modification message, the follow-up network element of this information indication: UE can only use urgency traffic; Perhaps

In upgrading bearing request message or request bearing resource modification message, carry limit service pattern (Limited Service Mode) information, the follow-up network element of this information indication: the business model of the current operation of UE is the restriction business model, and UE can only use urgency traffic under this pattern.

In embodiments of the present invention, if there is signaling bear in UE, core management network element can initiate the bearer update flow process (as described in information carrying initiate the bearer update flow process), in upgrading bearing request message, carry the second indication information, be used to indicate follow-up network element and only accept the foundation request of urgency traffic, refuse the foundation request of other business, its specific implementation with above describe identical.

The emergency bearing of describing among each embodiment of the present invention can be the carrying of transmission EMC service media stream.

In each embodiment of the present invention, core management network element can be judged emergency bearing and signaling bear by the following method:

The quality of service class sign (QCI, Quality of Service ClassIdentifier) that a, judgement carrying are used, if find that the QCI that carries is Emergency, then core management network element thinks that this is carried as emergency bearing; If find that the QCI of carrying is Signalling, then core management network element thinks that this is carried as signaling bear.

The QoS that b, judgement carrying are used, if the urgent indication of existence (EmergencyIndication) information among the QoS that finds to carry, then core management network element thinks that this is carried as emergency bearing; If have the signaling indication information among the QoS that finds to carry, then core management network element thinks that this is carried as signaling bear.

303, PDN GW returns more new bearer response (Update Bearer Response) message to ServingGW, and Serving GW returns and upgrades bearing response message to core management network element.

If 304 dynamic PCC (strategy and charging control, Policy and Charging Control) is used, be that the PCC rule is decided by PCRF, then PDN GW sends IP-CAN session modification indication (Indication OfIP-CAN Session Modification) message to PCRF, carry indication information in the message, indication PCRF returns the PCC rule (Rules) of signaling traffic data flow (SDF, Service Data Flow) or signaling bear use.Indication information can comprise:

1) carry QCI in the IP-CAN session modification Indication message, and this QCI is set to Signalling; Perhaps,

2) carry QoS in the IP-CAN session modification Indication message, and carry the signaling indication information among the QoS.

PDN GW also can carry the second indication information in this message, indication PCRF only accepts the foundation request of urgency traffic, and the foundation request of other business will be rejected.The second indication information can comprise:

1) carry limited indication (Restricted Indication) information in IP-CAN session modification Indication message, this information indication PCRF: current zone is prohibited area for UE, and UE can only use urgency traffic in this zone.

2) carry urgent use indication (Emergency UsageIndication) information in IP-CAN session modification Indication message, this information indication PCRF:UE can only use urgency traffic.

3) carry limit service pattern (Limited ServiceMode) information in IP-CAN session modification Indication message, this information indication PCRF:UE can only use urgency traffic.

In embodiments of the present invention, if there is signaling bear in UE, core management network element can be initiated in the bearer update flow process, PDN GW also can carry the second indication information in IP-CAN session modification Indication message, be used to indicate follow-up network element and only accept the foundation request of urgency traffic, refuse the foundation request of other business, its specific implementation with above describe identical.

305, PCRF returns IP-CAN session modification affirmation (Acknowledge of IP-CAN SessionModification) message to PDN GW, and PCRF carries signaling traffic stream or signaling bear use in this message PCC rule arrives PDN GW.Wherein, carry the business datum flow template (SDF template) that signaling traffic stream or signaling bear use in the PCC rule, comprising a series of business datum flow filter SDF Filters, SDF Filters comprises Source IP Address (source IP address), Target IPAddress (purpose IP address), Source UPD Port (source udp port number), Target UPD Port (purpose udp port number), Protocol Type (protocol type), PCRF arranges these SDF Filters so that the signaling bear on the PDN GW can only command transmitting (such as the SIP signaling, DNS signaling or DHCP signaling).PCRF can followingly arrange:

1) for up (Uplink) Filters, the Source IP Address that PCRF arranges among the Filter is the IP address of UE, Target IP Address be set be the IP address (this time this signaling bear can transmitting SIP signaling) of P-CSCF (Proxy Call Session Control Function network element, ProxyCall Session Control Function), the IP address of the IP address of DNS (this time, this signaling bear can transmit the DNS signaling) or DHCPServer (this time this signaling bear can transmission of dhcp signaling).

2) for descending (Downlink) Filters, the Target IP Address that PCRF arranges among the Filter is the IP address of UE, and the IP address (this time, this signaling bear can transmit the DNS signaling) of the IP address that Source IP Address is P-CSCF (this time this signaling bear can transmitting SIP signaling), DNS or the IP address of DHCP Server (this time this signaling bear can transmission of dhcp signaling) be set.

If carry QoS in the IP-CAN session modification Indication message, and carry the signaling indication information among the QoS, then the QCI of PCRF in can the PCC rule is set to Signalling.

PDN GW is according to the PCC rule of receiving, carry out the PCC rule, TFT (transmission stream template with the carrying revised, Traffic Flow Template, the up Filters and the descending Filters that use comprising this carrying) in the Filters that comprises be set to the Filters that carries in the PCC rule.Can only command transmitting in follow-up like this this carrying, other business can not be processed.

If dynamically PCC is not used, then PDN GW uses static PCC rule, and namely PDN GW receives the PCC rule that this carrying is set after Update Bearer Request message that Serving GW sends or the Request Bearer ResourceModification message.Comprising the Filters among the TFT that this carrying is set, so that this carrying can only command transmitting, the principle of setting is not described in detail here with the setting among the PCRF.Upgrade in bearing request message or the Request Bearer Resource Modification message and carry QoS, and carry signaling indication (Signalling Indication) information among the QoS, then the QCI of PDN GW in can the PCC rule is set to Signalling.

If in the bearer context among the PDN GW bearer types is arranged, then the bearer types of the carrying that will revise of PDN GW is revised as signaling bear type (Signalling Bearer Type).

306, PCRF can notify the second indication information to AF, and indication AF only accepts the foundation request of urgency traffic, and the foundation request of other business will be rejected.Send Event report (event report) message to AF such as PCRF, carry the second indication information in the message, can comprise:

1) carry limited indication (Restricted Indication) information in Event report message, this information indication AF: current zone is prohibited area for UE, and UE can only use urgency traffic in this zone.

2) carry urgent use indication (Emergency Usage Indication) information in Event report message, this information indication AF:UE can only use urgency traffic.

3) carry limit service pattern (Limited Service Mode) information in Event report message, this information indication AF:UE can only use urgency traffic.

AF returns acknowledge message to PCRF.

The embodiment of the invention is the sequential relationship between conditioning step 306 and the subsequent step not, namely also can be after step 307, and execution in step 306.

307, according to the PCC rule of obtaining, PDN GW initiates the bearer update flow process, and the information such as TFT, QCI that this carrying is used are notified to UE.PDN GW sends Update Bearer Request message to Serving GW, Serving GW sends Update Bearer Request message to core management network element, carries the QoS (such as the parameters such as QCI of carrying use) that this TFT that carries use and this carrying are used in the message.If distinguish bearer types in the bearer context among the UE, then also carry the signaling bear type information in the Update Bearer Request message.

308, core management network element sends bearing modification request (Bearer ModifyRequest) message to access network element, carries the information such as TFT and QCI in the message.If core management network element is received the signaling bear type information, then also carry the signaling bear type information in the bearing modification request message.

309, access network element sends radio bearer modification request (Radio Bearer Modify Request) message to UE, carries the information such as TFT and QCI in the message, and the QCI that access network element upgrades in oneself carrying is the QCI that carries in the message.If access network element is received the signaling bear type information, then also carry the signaling bear type information in the radio bearer modification request message.

310, UE revises radio bearer, carry according to information updating core net such as the TFT that receives and QCI, follow-up UE can only send signaling in this carrying, other business will abandon, and UE returns radio bearer modification response (Radio Bearer Modify Response) message to access network element.If UE receives the signaling bear type information, then the bearer types of the carrying that will revise of UE is revised as signaling bear type (SignallingBearer Type).

311, access network element returns bearing modification response (Bearer Modify Response) message to core management network element.

312, core management network element returns more new bearer response (Update Bearer Response) message to Serving GW, and Serving GW returns and upgrades bearing response message to PDN GW.

Follow-up, UE can transmit signaling data by the signaling bear that upgrades, and finishes current urgency traffic flow process.

Need to prove that core management network element can be not yet be signaling bear with the bearer update selected, and just notifies follow-up network element that the Filters of this carrying is upgraded, so that this carrying can only command transmitting and can not carry out other business.In this time, core management network element can be revised at the renewal bearing request message of issuing PDN GW or request bearing resource and carry the indication information indication in the message Filters of this carrying is upgraded, and makes this carrying can only command transmitting.Be specifically as follows:

Revise in the message and carry the signaling indication information upgrading bearing request message or request bearing resource, this indication information indicates this carrying can only the transmitting SIP signaling.

If PDN GW receives after this information that dynamically PCC is used, then PDN GW notice PCRF upgrades the Filters of this carrying, so that this carrying can only command transmitting and can not carry out other business.PDN GW carries indication information indication the Filters of this carrying is upgraded in IP-CAN session modification Indication message, make this carrying can only command transmitting.Be specifically as follows: in IP-CAN session modification Indication message, carry the signaling indication information, can only command transmitting to indicate this carrying.PCRF arranges Filters according to this indication information, and the principle of setting repeats no more here with top description.If static PCC is used, then PDN GW arranges the Filters of this carrying, makes this carrying can only command transmitting.

PDN GW initiates the bearer update flow process, with the TFT of the renewal of this carrying (comprise renewal after Filters) notice to UE.Because the qos parameter (such as QCI) of this carrying does not change, so do not carry the qos parameter such as QCI in the renewal bearing request message that PDN GW sends.Core management network element also need not to notify access network element to upgrade radio bearer after receiving the renewal bearing request message that Serving GW sends, and core management network element is directly notified the TFT of the renewal of this carrying to UE.

Core management network element also can carry indication information to message or the PDN GW that PDN GW sends in the message of PCRF transmission, be used to refer to the foundation request that PDN GW or PCRF or AF only accept the urgency traffic of UE, the foundation request of other business is rejected, it is processed with top description, does not repeat them here.

Core management network element also can by one independently flow process rather than bearer update flow process notify follow-up network element (such as PDN GW or PCRF or AF etc.) only to accept the foundation request of the urgency traffic of UE, the foundation request of other business is rejected.Send Event Report message to PDNGW such as core management network element, carry the foundation request that the second indication information indication PDN GW only accepts urgency traffic in the Event Report message, the foundation request of other business will be rejected.PDN GW receives that also can send Event Report message after the message of carrying the second indication information only accepts the foundation request of urgency traffic to PCRF indication PCRF, and the foundation request of other business will be rejected.PCRF receives that also can send Event Report message after the message of carrying the second indication information only accepts the foundation request of urgency traffic to AF indication AF, and the foundation request of other business will be rejected.

The connection control method that provides by above embodiment, when the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, if there is signaling bear in subscriber equipment, then keep the carrying of signaling bear and urgency traffic, when if subscriber equipment does not have signaling bear, be signaling bear with a bearer update then or be updated to the carrying that to transmit signaling, thereby so that UE can transmit signaling data by the signaling bear of setting up, finish current urgency traffic, after urgency traffic finishes, the signaling bear of this foundation can also be used to receive the foundation request of the call back service at the foundation request of the urgency traffic that UE initiates again and urgent center, thereby so that UE again initiates urgency traffic and receives the call back service at urgent center in this prohibited area urgency traffic demand is achieved, further, MME can delete or hang up other carryings beyond urgency traffic carrying and the signaling bear, thereby so that UE only can carry out the business of urgent call in prohibited area, and can not transmit other professional related datas by other carryings.When UE does not have signaling bear, if network side has been deleted other carryings beyond all non-emergent business, then UE is owing to can be used for command transmitting less than carrying, so that UE can't finish the callback flow that the process ends of urgency traffic or UE can't again initiate the call flow of urgency traffic or receive urgent center, if and network side is preserved for being used for transmitting the non-signaling bear of signaling, such as default bearer, then UE can also transmit other non-emergent business datums by default bearer, causes damage to operator.Therefore, when embodiments of the invention do not have signaling bear at UE, by setting up signaling bear, avoided not having carrying and transmitted signaling and can't finish follow-up urgency traffic signaling process, avoided also that other carries to transmit in the situation of signaling by default bearer etc., UE can other carries to transmit other professional data by default bearer etc., has reduced the loss of operator

Further, in an embodiment, core management network element can also be in the message to PDN GW or PCRF transmission, perhaps PDN GW carries indication information to message or the PCRF that PCRF sends in the message of AF transmission, be used to indicate the network element that receives message and only accept the foundation request of urgency traffic, refuse the foundation request of other business, like this, as PDN GW, after PCRF or AE receive the business foundation request relevant with UE, just can refuse other business of non-emergent business by judging type of service, thereby can guarantee that UE can not receive the foundation request of other business in this prohibited area, and receive only the foundation request of urgency traffic.

After the urgent call of UE finished, UE can initiate by signaling bear the signaling of terminated call, finished urgent call.After urgent call finishes, network side can arrange a timer for this UE, in timer time, network side is that UE keeps signaling bear, thereby so that UE can initiate the foundation request of urgency traffic again in timer time, perhaps can receive the foundation request of the callback at urgent center, guarantee the realization of urgency traffic.When timer expiry, network side can be deleted the signaling bear of UE, and UE is separated.Indicate the network element that receives message only to accept the foundation request of urgency traffic owing to comprised in the message that PDN GW/PCRF or AF receive, refuse the indication information of the foundation request of other business, therefore, just guaranteed that the signaling bear of this moment can only receive the foundation request of urgency traffic, and can not receive the foundation request of other business, thereby guaranteed that UE can't carry out the foundation of other non-emergent business in prohibited area.

Shown in Figure 4, for the Serving GW that provides in the embodiment of the invention and the interface between the PDN GW use the signaling process figure of another kind of connection control method in the GTP situation, the method for this access control comprises:

401, with step 301

402, after core management network element receives the access request of UE, the zone of determining the current access of UE is that prohibited area and UE exist EMC professional for UE, then core management network element determines whether UE exists signaling bear, described signaling bear is this carrying command transmitting, if there is signaling bear in UE, then core management network element keeps signaling bear and emergency bearing, and other carrying can be deleted by core management network element (sending the load bearing deactivation flow process such as core management network element) or be hung up (other carryings being hung up such as core management network element notice Serving GW).If core management network element finds that there is not signaling bear in UE, then core management network element keeps emergency bearing, initiates simultaneously the carrying Establishing process, sets up a signaling bear, and other carrying is deleted or hung up by core management network element.MME sends and creates carrying request (Create Bearer Request) message to Serving GW, Serving GW sends and creates bearing request message to PDN GW, and in message, carry indication information, be used to indicate the signaling bear that is carried as of this request foundation of PDN GW.This indication information can comprise:

Create the QCI that carries in the bearing request message, and this QCI is set to Signalling; Perhaps

Create the QoS (quality of service, Quality of Service) that carries in the bearing request message, and carry signaling indication (Signalling Indication) information among the QoS.

Core management network element also can carry the second indication information in this message, be used to indicate follow-up network element and only accept the foundation request of urgency traffic, the foundation request of other business will be rejected, follow-up network element can be such as PDN GW or PCRF or AF etc., a concrete the same embodiment of transfer mode, the second indication information also with a upper embodiment in the second indication information similar, namely carry limited indication information in creating bearing request message, promptly use indication information or limit service pattern information, the effect of each indication information is same as the previously described embodiments.

403, PDN GW returns and creates carrying response (Create Bearer Response) message to ServingGW, and Serving GW returns and creates bearing response message to core management network element.

If 404 dynamic PCC (strategy and charging control, Policy and Charging Control) is used, be that the PCC rule is decided by PCRF, then PDN GW sends IP-CAN session establishment indication (Indication Of IP-CAN Session establishment) message to PCRF, carry the PCC regular (Rules) that indication information indication PCRF returns signaling traffic data flow (SDF, Service Data Flow) or signaling bear use in the message.Indication information can comprise:

1) carry QCI in the IP-CAN session establishment Indication message, and this QCI is set to Signalling; Perhaps,

2) carry QoS in the IP-CAN session establishment Indication message, and carry the signaling indication information among the QoS.

PDN GW also can carry the second indication information in this message, indication PCRF only accepts the foundation request of urgency traffic, and the foundation request of other business will be rejected.The carrying mode of the second indication information can be with reference to above-described embodiment, namely can carry limited indication information in IP-CAN session establishment Indication message, promptly use indication information or limit service pattern information.

405, PCRF returns IP-CAN session establishment affirmation (Acknowledge of IP-CAN Sessionestablishment) message to PDN GW, and PCRF carries signaling traffic stream or signaling bear use in this message PCC rule arrives PDN GW.Wherein, carry the SDF template (business datum flow template) that signaling traffic stream or signaling bear use in the PCC rule, comprising a series of SDF Filters, PCRF arranges these SDF Filters, so that the signaling bear on the PDN GW can only command transmitting (such as SIP signaling, DNS signaling or DHCP signaling).PCRF arranges with embodiment 1.

If carry QoS in the IP-CAN session establishment Indication message, and carry the signaling indication information among the QoS, then the QCI of PCRF in can the PCC rule is set to Signalling.

PDN GW carries out the PCC rule according to the PCC that receives rule, can only command transmitting on the follow-up signaling bear, and other business can not be processed.

If dynamically PCC is not used, then PDN GW uses static PCC rule, and namely PDN GW receives the PCC rule that this carrying is set after the Create Bearer Request message that Serving GW sends.Comprising the Filters that this carrying is set, so that this carrying can only command transmitting, the principle of setting is not described in detail here with the setting among the PCRF.Create in the bearing request message and carry QoS, and carry signaling indication (Signalling Indication) information among the QoS, then the QCI of PDN GW in can the PCC rule is set to Signalling.

If in the bearer context among the PDN GW bearer types is arranged, then the bearer types of the newly-built carrying of PDN GW is set to the signaling bear type.

406, PCRF can notify the second indication information to AF, and indication AF only accepts the foundation request of urgency traffic, and the foundation request of other business will be rejected.Send Event report (event report) message to AF such as PCRF, carry the second indication information in the message, the second indication information also with a upper embodiment in the second indication information similar, namely carry limited indication information in Event report message, promptly use indication information or limit service pattern information, the effect of each indication information is same as the previously described embodiments.

AF returns acknowledge message to PCRF.

The embodiment of the invention is the sequential relationship between conditioning step 406 and the subsequent step not, namely also can be after step 407, and execution in step 406.

407, according to the PCC rule of obtaining, PDN GW initiates the load creating flow process, sets up signaling bear.PDN GW sends Create Dedicated Bearer Request (creating the dedicated bearing request) message to Serving GW, Serving GW sends Create Dedicated Bearer Request message to core management network element, carry the TFT (transmission stream template that this carrying is used in the message, Traffic Flow Template, the up Filters and the descending Filters that use comprising signaling bear) and the QoS that uses of signaling bear (parameters such as QCI of using such as carrying).If distinguish bearer types in the bearer context among the UE, then also carry the signaling bear type information in the Create Dedicated Bearer Request message.

408, core management network element sends carrying and sets up request (Bearer Setup Request) message to access network element, carries the information such as TFT and QCI in the message.If core management network element is received the signaling bear type information, then carrying is set up and is also carried the signaling bear type information in the request message.

409, access network element sends the RRC connection and reshuffles (RRC Connection Reconfiguration) message to UE, carries the information such as TFT and QCI in the message.Access network element creates radio bearer.If access network element is received the signaling bear type information, then also carry the signaling bear type information in the RRC connection reconfiguration message.

410, UE sets up radio bearer and core net carrying, and follow-up UE can only send signaling on signaling bear, and other business will abandon.UE returns RRC and connects to reshuffle and finish (RRC ConnectionReconfiguration Complete) message to access network element.If UE receives the signaling bear type information, then the bearer types of the newly-built carrying of UE is set to the signaling bear type.

411, access network element returns carrying and sets up response (Bearer Setup Response) message to core management network element.

412, core management network element returns and creates the dedicated bearing response message to Serving GW, and Serving GW returns and creates the dedicated bearing response message to PDN GW.

Follow-up, UE can transmit signaling data by the signaling bear that creates, and finishes current urgency traffic flow process.

Need to prove, in embodiments of the present invention, if there is signaling bear in UE, core management network element can notify follow-up network element (such as PDN GW or PCRF or AF etc.) only to accept the foundation request of the urgency traffic of UE, the foundation request of other business is rejected, and specifically processes referring to above-described embodiment.

The connection control method that provides by above embodiment, when the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, if there is signaling bear in subscriber equipment, then keep the carrying of signaling bear and urgency traffic, when if subscriber equipment does not have signaling bear, then initiate the carrying Establishing process, create a signaling bear, and other carryings beyond deletion or the carrying of hang-up urgency traffic and the signaling bear, thereby so that UE only can carry out the business of urgent call in prohibited area, and can not transmit other professional related datas by other carryings.Set up that to upgrade a technique effect that is carried as signaling bear in the technique effect of a signaling bear and above-described embodiment similar, at this, be not repeated in this description.

Interface between concrete application scenarios 2:Serving GW and the PDN GW uses PMIP (proxy mobile internet protocol, Proxy Mobile Internet Protocol).

Shown in Figure 5, the Serving GW that provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of a kind of connection control method in the PMIP situation, and wherein core management network element is MME or SGSN, and the method comprises:

501, with 301.

502, after core management network element receives the access request of UE, the zone of determining the current access of UE is that prohibited area and UE exist EMC professional for UE, then core management network element determines whether UE exists signaling bear, described signaling bear is this carrying command transmitting, if there is signaling bear in UE, then core management network element keeps signaling bear and emergency bearing, and other carrying can be deleted or hang up by core management network element.If core management network element finds that there is not signaling bear in UE, then core management network element keeps emergency bearing, initiate the bearer update flow process in the carrying (such as the default bearer of UE) of UE simultaneously, be signaling bear with this bearer update, other carrying is deleted or is hung up by core management network element.Core management network element sends more new bearer request (Update Bearer Request) message or the request bearing resource is revised message to Serving GW.And in message, carry indication information, being used to indicate Serving GW is signaling bear with this bearer update.The mode of carrying this indication information in the bearer update request message is identical with Fig. 3 embodiment, is not repeated in this description at this.

Core management network element also can carry the second indication information in this message, be used to indicate follow-up network element and only accept the foundation request of urgency traffic, the foundation request of other business will be rejected, for example, the hard core control gateway carries the second indication information in the message that sends to Serving GW, like this Serving GW with PCRF reciprocal process in, can be in mutual message, described the second indication information is sent to PCRF, thereby PCRF is according to described the second indication information in indication, only accept the foundation request of urgency traffic, refuse the foundation request of other business, in follow-up PCRF and PDN GW or the AF reciprocal process, PCRF can carry described the second indication information in the message of PDN GW or AF transmission, thereby indication PDN GW or AF only accept the foundation request of urgency traffic, refuse the foundation request of other business.The second indication information can be the limited indication information that carries in the message in above-mentioned reciprocal process, promptly use indication information or limit service pattern information.

In embodiments of the present invention, if there is signaling bear in UE, core management network element can be initiated in the bearer update flow process, be that core management network element carries the second indication information in the renewal bearing request message that sends to Serving GW, like this Serving GW with PCRF reciprocal process in, can be in mutual message, described the second indication information is sent to PCRF, thereby PCRF is according to described the second indication information in indication, only accept the foundation request of urgency traffic, refuse the foundation request of other business, in follow-up PCRF and PDN GW or the AF reciprocal process, PCRF can carry described the second indication information in the message of PDN GW or AF transmission, thereby indication PDN GW or AF only accept the foundation request of urgency traffic, refuse the foundation request of other business.The second indication information can be the limited indication information that carries in the message in above-mentioned reciprocal process, promptly use indication information or limit service pattern information.

503, Serving GW returns and upgrades bearing response message to core management network element.

504, Serving GW transmission gateway control and QoS rule request (Gateway Control and QoSRules Request) message are to PCRF, carry indication information in the message, be used to indicate QoS and the Filters of the carrying of PCRF demand signalling or signaling traffic stream, indication information can comprise:

1) QCI that carries in gateway control and the QoS rule request message, and this QCI is set to Signalling; Perhaps,

2) QoS that carries in gateway control and the QoS rule request, and carry the signaling indication information among the QoS.

Serving GW also can carry the second indication information in this message, be used to indicate the foundation request that PCRF only accepts urgency traffic, and the foundation request of other business will be rejected.The second indication information one of can be in the following manner carries:

1) carry limited indication (Restricted Indication) information in gateway control and the QoS rule request message, the current zone of this information indication PCRF is prohibited area for UE, and UE can only use urgency traffic in this zone.

2) carry urgent use indication (Emergency UsageIndication) information in gateway control and the QoS rule request message, this information indication PCRF UE can only use urgency traffic.

3) carry limit service pattern (Limited ServiceMode) information in gateway control and the QoS rule request message, the business model of the current operation of network element UE that this information indication is follow-up is the restriction business model, and UE can only use urgency traffic under this pattern.

505, PCRF returns gateway control and QoS rule response (Gateway Control and QoS RulesReply) message to Serving GW, carries QoS (such as QCI etc.) and the Filters of signaling bear or signaling traffic stream in the message.QoS and Filters that PCRF arranges signaling bear or signaling traffic stream process with above-mentioned embodiment.

506, PCRF sends Policy and Charging Rules Provision (strategy and charging regulation provide) message and carries QoS and the Filters of signaling bear or signaling traffic stream in the message to PDN GW.PCRF also can carry the second indication information in this message, be used to indicate the foundation request that PDN GW only accepts urgency traffic, and the foundation request of other business will be rejected.The second indication information one of can be in the following manner carries:

1) carries limited indication (RestrictedIndication) information in the Policy and Charging Rules Provision message, the current zone of this information indication PDN GW is prohibited area for UE, and UE can only use urgency traffic in this zone.

2) carry urgent use indication (Emergency Usage Indication) information in the Policy and Charging Rules Provision message, this information indication PDN GW UE can only use urgency traffic.

3) carry limit service pattern (LimitedService Mode) information in the Policy and Charging Rules Provision message, the business model of the current operation of network element UE that this information indication is follow-up is the restriction business model, and UE can only use urgency traffic under this pattern.

507, PDN GW returns Ack message to PCRF.

508, PCRF can notify the second indication information to AF, and indication AF only accepts the foundation request of urgency traffic, and the foundation request of other business will be rejected.Send Event report (event report) message to AF such as PCRF, carry the second indication information in the message, the second indication information also with a upper embodiment in the second indication information similar, namely carry limited indication information in Event report message, promptly use indication information or limit service pattern information, the effect of each indication information is same as the previously described embodiments.

AF returns acknowledge message to PCRF.

Need to prove, step 506,507 and step 508 do not have strict sequential relationship, do not have strict sequential relationship between step 506-508 and the step 509 yet.

509, Serving GW initiates the bearer update flow process, and QoS and the Filters of signaling bear or signaling traffic stream notified to UE.The handling process of its handling process refer step 306-311.

Need to prove that core management network element can be not yet be signaling bear with the bearer update selected, and just notifies follow-up network element that the Filters of this carrying is upgraded, so that this carrying can only command transmitting and can not carry out other business.Core management network element can carry indication information in issuing the renewal bearing request message of Serving GW, the Filters of this carrying is upgraded in indication, makes this carrying can only command transmitting.Indication information can comprise: upgrade in the bearing request message and carry the signaling indication information, this indication information indicates this carrying can only the transmitting SIP signaling.

Serving GW notice PCRF upgrades the Filters of this carrying, so that this carrying can only command transmitting and can not carry out other business.In this time, Serving GW can carry indication information in gateway control and QoS rule request message, and the Filters of this carrying is upgraded in indication, makes this carrying can only command transmitting.Indication information can comprise: carry the signaling indication information in gateway control and the QoS rule request, this indication information indicates this carrying can only the transmitting SIP signaling.

Serving GW initiates the bearer update flow process, with the TFT of the renewal of this carrying (comprise renewal after Filters) notice to UE.Because the qos parameter (such as QCI) of this carrying does not change, so do not carry the qos parameter such as QCI in the renewal bearing request message that Serving GW sends.Core management network element also need not to notify access network element to upgrade radio bearer after receiving the renewal bearing request message that Serving GW sends, and core management network element is directly notified the TFT of the renewal of this carrying to UE.

Core management network element also can by one independently flow process notify follow-up network element (such as PDN GW or PCRF or AF etc.) only to accept the foundation request of the urgency traffic of UE, the foundation request of other business is rejected.Send Event Report message to Serving GW such as core management network element, carry the foundation request that the second indication information indication Serving GW only accepts urgency traffic in the Event Report message, the foundation request of other business will be rejected.Serving GW receives that also can send Event Report message after the message of carrying the second indication information only accepts the foundation request of urgency traffic to PCRF indication PCRF, and the foundation request of other business will be rejected.PCRF receives that also can send EventReport message after the message of carrying the second indication information only accepts the foundation request of urgency traffic to PDN GW or AF indication PDN GW or AF, and the foundation request of other business will be rejected.

The connection control method that provides by above embodiment, realized that the interface between Serving GW and the PDN GW uses in the PMIP situation, when the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, when if subscriber equipment does not have signaling bear, by the bearer update with a UE be signaling bear or be updated to can only command transmitting carrying, thereby set up signaling bear, and other carryings beyond deletion or the carrying of hang-up urgency traffic and the signaling bear, thereby so that UE only can carry out the business of urgent call in prohibited area, and can not transmit other professional related datas by other carryings.The technique effect of setting up a signaling bear illustrates in the above-described embodiments, at this, is not repeated in this description.

Shown in Figure 6, the Serving GW that provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of another kind of connection control method in the PMIP situation, and wherein core management network element is MME or SGSN, and the method comprises:

601, with 401.

602, after core management network element receives the access request of UE, the zone of determining the current access of UE is that prohibited area and UE exist EMC professional for UE, then core management network element determines whether UE exists signaling bear, described signaling bear is this carrying command transmitting, if there is signaling bear in UE, then core management network element keeps signaling bear and emergency bearing, and other carrying can be deleted or hang up by core management network element.If core management network element finds that there is not signaling bear in UE, then core management network element keeps emergency bearing, initiates simultaneously the load creating flow process, creates a signaling bear.Other carrying is deleted or is hung up by core management network element.Core management network element sends and creates carrying request (Create Bearer Request) message to Serving GW, and carries indication information in message, is used to indicate Serving GW and creates signaling bear.The mode of carrying this indication information in creating bearing request message is identical with Fig. 4 embodiment, is not repeated in this description at this.

Core management network element also can carry the second indication information in this message, be used to indicate the foundation request that follow-up network element is only accepted urgency traffic, and the foundation request of other business will be rejected, and concrete mode is identical with a upper embodiment.

603, Serving GW returns and creates bearing response message to core management network element.

604, with 504

605, with 505

606, with 506

607, PDN GW returns Ack message to PCRF.

608, with 508

Need to prove, step 606,607 and step 608 do not have strict sequential relationship, do not have strict sequential relationship between step 606-608 and the step 609 yet.

609, Serving GW initiates the carrying Establishing process, and QoS and the Filters of signaling bear or signaling traffic stream notified to UE.Its handling process can refer step 407-412 flow process.

The connection control method that provides by above embodiment, realized that the interface between Serving GW and the PDN GW uses in the PMIP situation, when the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, when if subscriber equipment does not have signaling bear, create a new signaling bear, and other carryings beyond deletion or the carrying of hang-up urgency traffic and the signaling bear, thereby so that UE only can carry out the business of urgent call in prohibited area, and can not transmit other professional related datas by other carryings.The technique effect of setting up a signaling bear illustrates in the above-described embodiments, at this, is not repeated in this description.

Shown in Figure 7, the non-3GPP GW that provides for the embodiment of the invention and the interface between the PDN GW use the signaling process figure of another kind of connection control method in the PMIP situation, and wherein core management network element is non-3GPP GW, and the method comprises:

701, with 301.

702, after core management network element receives the access request of UE, the zone of determining the current access of UE is that prohibited area and UE exist EMC professional for UE, then core management network element determines whether UE exists signaling bear, described signaling bear is this carrying command transmitting, if there is signaling bear in UE, then core management network element keeps signaling bear and emergency bearing, and other carrying can be deleted or hang up by core management network element.If core management network element finds that there is not signaling bear in UE, then core management network element keeps emergency bearing, core management network element transmission gateway control and QoS rule request (Gateway Control and QoSRules Request) message are to PCRF simultaneously, carry indication information in the message, QoS and the Filters of indication PCRF demand signalling carrying or signaling traffic stream, indication information can comprise:

1) carry QCI in gateway control and the QoS rule request message, and this QCI is set to Signalling; Perhaps,

2) carry QoS in gateway control and the QoS rule request, and carry the signaling indication information among the QoS.

Core management network element also can carry the second indication information in this message, be used to indicate the foundation request that PCRF only accepts urgency traffic, and the foundation request of other business will be rejected.The second indication information can comprise:

703, PCRF returns gateway control and QoS rule response (Gateway Control and QoS RulesReply) message to core management network element, carries QoS (such as QCI etc.) and the Filters of signaling bear or signaling traffic stream in the message.PCRF arranges the Filters processing mode of signaling bear or signaling traffic stream with the processing of aforementioned embodiment.

704, PCRF sends Policy and Charging Rules Provision message to PDN GW, carries QoS and the Filters of signaling bear or signaling traffic stream in the message.

PCRF can carry the second indication information in this message, be used to indicate the foundation request that PDN GW only accepts urgency traffic, and the foundation request of other business will be rejected.

705, PDN GW returns Ack message to PCRF.

706, PCRF can notify the second indication information to AF, and indication AF only accepts the foundation request of urgency traffic, and the foundation request of other business will be rejected.Send Event report (event report) message to AF such as PCRF, carry the second indication information in the message, the second indication information also with a upper embodiment in the second indication information similar, namely carry limited indication information in Event report message, promptly use indication information or limit service pattern information, the effect of each indication information is same as the previously described embodiments.

AF returns acknowledge message to PCRF.

707a, core management network element initiate the bearer update flow process according to QoS and the Filters of the carrying of obtaining, and are signaling bear with the bearer update of UE, and QoS and the Filters of signaling bear or signaling traffic stream notified to UE.Its handling process refer step 308-312.Perhaps

QoS and the Filters of the carrying that 707b, core management network element basis are obtained can initiate the load creating flow process, set up a signaling bear, and QoS and the Filters of signaling bear or signaling traffic stream notified to UE.Its handling process refer step 408-412.

Wherein 707a and 707b select an execution.

Follow-up, UE can transmit signaling data by the signaling bear that upgrades or create, and finishes current urgency traffic flow process.

In embodiments of the present invention, if there is signaling bear in UE, then core management network element can be initiated the bearer update flow process, and in the bearer update flow process, in the message that sends to PCRF, carry the second indication information, to indicate PCRF only to accept the foundation request of urgency traffic, the foundation request of other business will be rejected, and specific implementation is identical with step 702.PCRF also can send to the message of carrying the second indication information PDN GW or AF in follow-up and PDN GW or AF reciprocal process, be used to indicate the foundation request that PDN GW or AF only accept urgency traffic, and the foundation request of other business will be rejected.

Need to prove, core management network element also can by one independently flow process notify follow-up network element (such as PDN GW or PCRF or AF etc.) only to accept the foundation request of the urgency traffic of UE, the foundation request of other business is rejected.Send Event Report message to PCRF such as core management network element, carry the foundation request that the second indication information indication PCRF only accepts urgency traffic in the EventReport message, the foundation request of other business will be rejected.PCRF receives that also can send Event Report message after the message of carrying the second indication information only accepts the foundation request of urgency traffic to PDN GW or AF indication PDN GW or AF, and the foundation request of other business will be rejected.

The connection control method that provides by above embodiment, realized that the interface between non-3GPP GW and the PDN GW uses in the PMIP situation, non-3GPP GW determines that the zone of the current access of subscriber equipment is that prohibited area and user exist urgency traffic, when if subscriber equipment does not have signaling bear, be signaling bear with a bearer update or create a new signaling bear, and other carryings beyond deletion or the carrying of hang-up urgency traffic and the signaling bear, thereby so that UE only can carry out the business of urgent call in prohibited area, and can not transmit other professional related datas by other carryings.The technique effect of setting up a signaling bear illustrates in the above-described embodiments, at this, is not repeated in this description.

In the above embodiment that provides, when there is signaling bear in UE, by the bearer update message process to signaling bear, PDN GW or PCRF or AF receive the message that comprises the second indication information, perhaps when there is not signaling bear in UE, by the renewal load bearing process that is signaling bear of a bearer update with UE or create in the signaling bear process, PDN GW or PCRF or AF receive the message that comprises the second indication information, like this, follow-up PDN GW or PCRF or AF receive when the relevant business of UE is set up request, just can receive only the foundation request of urgency traffic according to the type of service of request, refuse the foundation request of other business.After the user finished current urgency traffic, network side can keep user's signaling bear within a certain period of time, and a timer for example can be set, timer then before, UE can again initiate urgent call or receive the callback of EC.

Shown in Figure 8, the flow chart of another connection control method that provides for the embodiment of the invention, the method comprises:

801, receive the message that includes indication information, described indication information is used to indicate the foundation request that the network element of receiving described message is only accepted urgency traffic, refuses the foundation request of other business;

803, receive professional foundation request, determine whether the type of service of request is urgency traffic, if urgency traffic is then accepted the foundation request of this business, otherwise, refuse the foundation request of this business.

Described indication information comprises limited indication information, the limit service pattern information of carrying in the message or promptly uses indication information.

The network element that reception includes the message of indication information can be PDN GW or PCRF or AF, embodiment such as the front describes, PDN GW or PCRF or AF can be in bearer update flow process or load creating flow processs, receive the message that includes the second indication information, concrete message and application scenarios can be with reference to the embodiments of the method for front.

The flow chart of another connection control method that Fig. 9 provides for the embodiment of the invention, in the present embodiment, PCRF or PDN GW or AF are in aforesaid bearer update process or loading establishing process or independently in the flow process, received the message that comprises the second indication information, this connection control method comprises:

901, AF receives business or the application message of service request, comprise in the information and using or the information of traffic aided, such as the bandwidth of service needed, professional stream description (such as the source IP address of business, purpose IP address, professional source port number, professional destination slogan, professional protocol type) etc.

If received the message that includes the second indication information before 902 AF, described the second indication information indication AF receives only the foundation request of urgency traffic, refuse the foundation request of other business, then AF determines the type of service of the service request received, if not urgency traffic, then the service request received of AF refusal is returned exclude information NAck.AF can find whether urgency traffic of the service request received by the following method:

1) carry urgent indication (Emergency Indicator) information in the business information that AF receives, AF judges according to this information whether the business of request is urgency traffic.

2) carry QCI information in the business information that AF receives, for urgency traffic, its QCI is a specific QCI (Emergency QCI) value.AF judges according to the value of this QCI whether the business of request is urgency traffic.

If whether 903 non-emergent business are rejected the requested service that decision or AF discovery is not received in AF is urgency traffic, then AF transmission business or application message are to PCRF.Comprise in business or the application message and using or the information of traffic aided, such as the bandwidth of service needed, professional stream description (such as the source IP address of business, purpose IP address, professional source port number, professional destination slogan, professional protocol type) etc.

904, the PCRF implementation strategy determines.If received the message that includes the second indication information before the PCRF, described the second indication information indication PCRF receives only the foundation request of urgency traffic, refuse the foundation request of other business, then PCRF determines the type of service of the requested service receive from AF, if not urgency traffic, then the service request of PCRF refusal AF transmission is returned exclude information NAck to AF.PCRF can find whether urgency traffic of requested service that AF sends by the following method:

1) AF carries urgent indication (Emergency Indicator) information in offering the business information of PCRF, and PCRF judges according to this information whether the business of request is urgency traffic.

2) AF carries QCI information in offering the business information of PCRF, and for urgency traffic, its QCI is a specific QCI (Emergency QCI) value.PCRF judges according to the value of this QCI whether the business of request is urgency traffic.

If whether 905 non-emergent business are rejected the business that decision or PCRF discovery AF does not ask in PCRF is urgency traffic, then PCRF sending strategy and charging regulation supply (Policy and ChargingRules Provision) message is carried PCRF according to the application of receiving from AF or the definite PCC rule of business information to PDN GW in the message.

If received the message that includes the second indication information before the 906 PDN GW, described the second indication information indication PCRF receives only the foundation request of urgency traffic, refuse the foundation request of other business, and determine the type of service of request in the information of carrying in the PCC rule that PDN GW determines to receive from PCRF, if it is not urgency traffic that the information of carrying shows the business of request, then PDN GW returns exclude information to PCRF.PDN GW can find whether urgency traffic of the business information of carrying in the PCC rule by the following method:

1) carry urgent indication (Emergency Indicator) information in the PCC Rule Information, PDN GW judges according to this information whether the business information of carrying in the PCC rule is urgency traffic.

2) carry QCI information in the PCC Rule Information, for urgency traffic, its QCI is a specific QCI (Emergency QCI) value.PDN GW judges according to the value of this QCI whether the business information of carrying in the PCC rule is urgency traffic.

3) carry ARP information in the PCC Rule Information, for urgency traffic, its ARP is a specific QCI (Emergency ARP) value.PDN GW judges according to the value of this ARP whether the business information of carrying in the PCC rule is urgency traffic.

If 907 PCRF receive the refuse information of PDN GW, then PCRF returns refuse information to AF.

Show that the business of request is urgency traffic if whether 908 non-emergent business are rejected the information of carrying in the PCC rule that decision or PDN GW do not find to receive in PDN GW from PCRF, then PDNGW determines to initiate dedicated bearing Establishing process or bearer update flow process according to the PCC rule of receiving, if initiate the dedicated bearing Establishing process, then PDN GW sends and creates dedicated bearing request (Create DedicatedBearer Request) message to core management network element; If find the bearer update flow process, then PDN GW sends more new bearer request (Update Bearer Request) message to core management network element.

If whether 909 non-emergent business are rejected at core management network element determined, then core management network element judges according to the message of receiving whether the business of current request is urgency traffic, if the business of current request is urgency traffic, the then foundation of core management network element initiation radio bearer or more new technological process, notice access network element are set up radio bearer or are upgraded radio bearer.

910, core management network element returns and creates the dedicated bearing response message or upgrade bearing response message to PDN GW.If it is not that urgency traffic and current zone are prohibited areas for UE that core management network element is found the business of current request, then core management network element is rejected (carry Cause cell value such as core management network element in the message of response and be rejected for " Service not Allowed dueto Restricted " indication request, and the cause value of refusal is that the zone is limited) in response message indicating PDN GW request.

Core management network element can judge by the following method whether the business of current request is urgency traffic:

1) QCI of the carrying use of the carrying of judgement establishment or renewal, if find that the QCI of carrying is Emergency, then core management network element thinks that the business of current request is urgency traffic.

2) QoS of the carrying use of the carrying of judgement establishment or renewal, if (Emergency Indication) information is promptly indicated in existence among the QoS that finds to carry, then core management network element thinks that the business of current request is urgency traffic.

3) ARP of the carrying use of the carrying of judgement establishment or renewal, if find that the ARP of carrying is Emergency, then core management network element thinks that the business of current request is urgency traffic.

If 911 requests are accepted, then PDN GW returns affirmation (Ack) message to PCRF; If request is rejected, then PDN GW returns refusal (NAck) message to PCRF.

If 912 PCRF receive Ack message, then PCRF returns Ack message to AF; If PCRF receives NAck message, then PCRF returns NAck message to AF.

The connection control method that provides by embodiments of the invention, so that if AF or PDN GW or PCRF or core management network element find that the business of UE request is not that urgency traffic and UE are prohibited area in current zone, then AF or PDN GW or PCRF or core management network element can be refused the business of UE request, avoid like this in prohibited area creating the non-emergent professional resource of using, cause that UE uses non-emergent business in prohibited area.

The connection control method that provides by the embodiment of the invention, network side can be selected access control point is arranged on certain network equipment, such as AF, PCRF, PGW or MME, thereby so that network management more flexibly effectively, by the decision-making mechanism of access control is set in the preorder network element in access path, can save the signalling amount of core network side, improve the treatment effeciency of network.When the zone of the current access of subscriber equipment is that prohibited area and user are when existing urgency traffic, equipment in the network is according to the indication information in the message that receives, only accept the foundation request of urgency traffic, refuse the foundation request of other business, so just can guarantee that UE can not receive the foundation request of urgency traffic other business in addition in this prohibited area, and receive only the foundation request of urgency traffic.

Shown in Figure 10, the schematic diagram of a kind of access control system that provides for the embodiment of the invention, this system comprises core management network element 1001 and PGW 1003, core management network element 1001 in the present embodiment can be MME or SGSN, wherein core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, send indication to PGW 1003, initiate the signaling bear Establishing process and set up signaling bear; PGW1003 is used for setting up signaling bear according to the core management network element indication.

Concrete, UE launch position more new technological process (such as tracing section updating flow process (TAU) etc.) UE to prohibited area of migration or access network element initiates to switch UE to prohibited area of (Handover) flow process migration.Under the both of these case, the core management network element of this prohibited area all can receive the access request of UE.

Core management network element 1001 can be further used for starting update load bearing flow process in the carrying of UE, and in the message that sends to PGW, carry indication information, indication PGW 1003 is signaling bear or carrying that can only command transmitting with described bearing modification, it is concrete that more new technological process can be with reference to the associated description in the embodiment of the method for figure 3 correspondences, perhaps core management network element can be further used for initiating the load creating flow process, and in the message that sends to PGW, carry indication information, indication PGW creates signaling bear, and concrete visioning procedure can be with reference to the associated description of the embodiment of the method for figure 4 correspondences.

Described PGW 1003 can be according to the indication of core management network element, the PCC of static state setting signaling bear rule, and according to described PCC rule, starting update load bearing flow process or establishment carrying flow process; And if dynamically PCC is used, the PCC rule is decided by PCRF, then this access control system also comprises PCRF 1005, PGW can be mutual with PCRF, obtain the PCC rule of signaling bear, and according to the PCC rule of obtaining, starting update load bearing flow process or establishment carrying flow process, PCRF is used for the request according to PGW, the PCC rule of signaling bear is set and sends the PCC rule of this signaling bear to PGW.

But the description among the concrete interaction flow reference method embodiment of PGW and PCRF.

Need to prove, omitted the SGW of pass-along message between core management network element and PGW in the native system, SGW only is used for pass-along message between PGW and core management network element, and interface can use the GTP protocol interaction between SGW and the PGW.

How the indication information of core management network element and PGW or PCRF arrange the PCC rule of signaling bear, and clearly explanation has been arranged in embodiment of the method, are not described in detail at this.

In addition, core management network element can also be further used for carrying the second indication information in the message that sends to PGW, be used to indicate the foundation request that PGW receives only urgency traffic, refuse the foundation request of other business, follow-up PGW can also with the reciprocal process of PCRF in, described the second indication information is sent to PCRF, thereby PCRF is according to described indication information in indication, receive only the foundation request of urgency traffic, refuse the foundation request of other business, follow-up PCRF can also be mutual with AF, sends the message of carrying described the second indication information to AF, to indicate AF to receive only the foundation request of urgency traffic, refuse the foundation request of other business.The setting of the second indication information and concrete transmission course can be with reference to the descriptions among the preceding method embodiment.

Shown in Figure 11, the schematic diagram of the another kind of access control system that provides for the embodiment of the invention, this system comprises core management network element 1101, SGW1103 and PCRF 1105, wherein core management network element 1101 is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, send indication to SGW 1103, initiate the signaling bear Establishing process and set up signaling bear; SGW 1103, are used for according to the core management network element indication, to the PCC rule of PCRF1105 demand signalling carrying, and according to the PCC rule of obtaining, set up signaling bear; PCRF1105 is used for the request according to SGW 1103, the PCC rule of signaling bear is set, and sends to SGW.

Core management network element can be MME or SGSN in the native system, and the interface between PGW and the SGW can use PMIP.

Core management network element 1101 is further used for starting update load bearing flow process in the carrying of UE, and in the message that sends to SGW 1103, carry indication information, indication SGW 1103 is signaling bear or carrying that can only command transmitting with described bearing modification, concrete more new technological process can be with reference to the description in the embodiment of the method for figure 5 correspondences, perhaps core management network element is further used for initiating the load creating flow process, and in the message that sends to SGW1103, carry indication information, indication SGW 1103 creates signaling bears, and concrete load creating flow process can be with reference to the description of the embodiment of figure 6 correspondences; Described SGW 1103 is further used for the indication according to core management network element, to the PCC rule of PCRF 1105 demand signallings carrying, thereby the PCC that obtains signaling bear is regular, and according to described PCC rule, starting update load bearing flow process or establishment carrying flow process, thus signaling bear set up.

PCRF arranges the mode of signaling bear can reference method embodiment.

Further, core management network element 1101 also is used for carrying the second indication information to message or SGW1103 that SGW 1103 sends to the message that PCRF 1105 sends, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.Further, the access control system that the embodiment of the invention provides can also comprise PGW 1107 or AF1109, then PCRF 1105 also is used for sending the message that includes the second indication information to PGW 1107 or AF 1109, receive only the foundation request of urgency traffic with indication PGW 1107 or AF 1109, refuse the foundation request of other business, then PGW 1107 or AF 1109 also are used for receiving the message that includes indication information, after receiving professional foundation request, whether the type of service of determining request is urgency traffic, if urgency traffic, then accept the foundation request of this business, otherwise, the foundation request of this business refused.

The wherein concrete form of the second Indication message and transmission form can be with reference to preceding method embodiment.

Shown in Figure 12, the schematic diagram of the another kind of access control system that provides for the embodiment of the invention, this system comprises

Core management network element 1201 and PCRF 1203, wherein core management network element 1201 can be non-3GPP GW, the interface between non-3GPP GW and the PDN GW can use PMIP.

Described core management network element 1201 is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, PCC rule to the carrying of PCRF 1203 demand signallings, thereby obtain the PCC rule of signaling bear, and according to described PCC rule, set up signaling bear;

PCRF 1203, are used for the request according to core management network element, the PCC rule of signaling bear is set, and sends to core management network element.

In embodiments of the present invention, after core management network element 1201 gets access to the PCC rule, can be by initiating the bearer update flow process, be signaling bear with the bearer update of UE, also can by initiating the load creating flow process, create signaling bear.Idiographic flow can be with reference to the description in the embodiment of the method for figure 7 correspondences.

Described core management network element 1201 can also be used for carrying the second indication information to the message that PCRF 1203 sends, and is used to indicate the foundation request that PCRF receives only urgency traffic, refuses the foundation request of other business.

The set-up mode of the second indication information and transmission means, and PCRF arranges the mode of the PCC rule of signaling bear, description that can reference method embodiment.

Further, the access control system that the embodiment of the invention provides can also comprise PGW 1205 or AF 1207, then PCRF 1203 also is used for sending the message that includes the second indication information to PGW 1205 or AF 1207, receive only the foundation request of urgency traffic with indication PGW 1205 or AF 1207, refuse the foundation request of other business, then PGW 1205 or AF 1207 also are used for receiving the message that includes indication information, after receiving professional foundation request, whether the type of service of determining request is urgency traffic, if urgency traffic, then accept the foundation request of this business, otherwise, the foundation request of this business refused.

Shown in Figure 13 A, the schematic diagram of a kind of core management network element that provides for the embodiment of the invention, comprise receiving element 1301, unit 1305 is set up in determining unit 1303 and carrying, wherein, receiving element 1301 is used for receiving the access request of subscriber equipment, determining unit 1303 is used for determining that the zone of the current access of subscriber equipment is that prohibited area and user exist urgency traffic, carrying is set up unit 1305 and is used for determining the zone of the current access of subscriber equipment when determining unit to be that prohibited area and user are when existing urgency traffic, determine that subscriber equipment does not have signaling bear, then initiate the signaling bear Establishing process, set up signaling bear.

Described core management network element can be MME, SGSG or non-3GPP GW.

When core management network element was MME or SGSN, shown in Figure 13 B, described carrying was set up unit 1305 and be may further include:

Bearer update subelement 1350, be used for starting update load bearing flow process in the carrying of UE, in the message of SGW or PGW transmission, carrying indication information, being used to indicate SGW or PGW is signaling bear or carrying that can only command transmitting with described bearing modification, and concrete bearer update flow process can be with reference to the description of embodiment of the method corresponding to figure 3 and Fig. 5; Perhaps

Load creating subelement 1352, be used for initiating the load creating flow process, carrying indication information in the message that sends to SGW or PGW, be used to indicate SGW or PGW and create signaling bear, concrete load creating flow process can be with reference to the description of embodiment of the method corresponding to figure 4 and Fig. 6.

When core management network element was non-3GPP GW, shown in Figure 13 C, described core management network element also comprised PCC Rule unit 1307, for mutual with PCRF, obtained the PCC rule of signaling bear; Then described carrying is set up unit 1305 also for the PCC rule of obtaining according to described PCC Rule unit, starting update load bearing flow process in the carrying of UE, be signaling bear or carrying that can only command transmitting with described bearing modification, perhaps be used for initiating the load creating flow process, in the message of SGW or PGW transmission, carrying indication information, be used to indicate SGW or PGW and create signaling bear, concrete bearer update and visioning procedure can be with reference to the descriptions of the embodiment of figure 7 correspondences.

In the various core management network elements that above embodiment describes, can comprise adding device, be used for adding the second indication information to the message of PGW, SGW or PCRF transmission, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.Set-up mode and the transmission means of the second concrete indication information can be with reference to the explanations among the mode embodiment.

Each access control system and core management network element that the embodiment of the invention provides have been realized access control relevant to urgency traffic in the prohibited area under the heterogeneous networks scene.When the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, when if subscriber equipment does not have signaling bear, initiate the signaling bear Establishing process, set up signaling bear, thereby so that UE can transmit signaling data by the signaling bear of setting up, finish current urgency traffic, after the urgency traffic technology, the signaling bear of this foundation can also be used to receive the foundation request of the call back service at the foundation request of the urgency traffic that UE initiates again and urgent center, thereby so that UE again initiates urgency traffic and receives the call back service at urgent center in this prohibited area urgency traffic demand be achieved.

Shown in Figure 14 A, the schematic diagram of a kind of access control network element that provides for the embodiment of the invention, this control network element comprises indication receiving element 1401, be used for receiving the message that includes indication information, described indication information is used to indicate the foundation request that described access control network element receives only urgency traffic, refuses the foundation request of other business; Decision-making performance element 1403 is used for receiving professional foundation request, determines whether the type of service of request is urgency traffic, if urgency traffic is then accepted the foundation request of this business, otherwise, refuse the foundation request of this business.

Concrete, described access control network element can be PGW, as shown in Figure 14B, then described indication receiving element 1401 is used for receiving from core management network element through the message of SGW transmission or the message that sends from PCRF; Described decision-making performance element further comprises the first judgment sub-unit 1410 and the first execution subelement 1412, wherein,

The first judgment sub-unit 1410 is used for receiving professional foundation request, determine whether to carry urgent indication information, whether to carry value in the professional PCC Rule Information of setting up request and be the QCI information of Emergency QCI or whether carry the ARP information that value is Emergency ARP, if carry above-mentioned information in the PCC Rule Information, the business of then determining request is urgency traffic, otherwise is non-emergent business;

First carries out subelement 1412, is used for the judged result according to judgment sub-unit, receives the foundation request of urgency traffic, refuses the foundation request of non-emergent business.

Perhaps described access control network element can be PCRF, and shown in Figure 14 C, then described indication receiving element 1401 is used for receiving the message that sends from core management network element, SGW or PGW; Described decision-making performance element further comprises the second judgment sub-unit 1420 and the second execution subelement 1422, wherein,

The second judgment sub-unit 1420 is used for receiving professional foundation request, determine whether professional foundation in the request carries urgent indication information or whether carry the QCI information that value is Emergency QCI, if carry above-mentioned information in the professional foundation request, the business of then determining request is urgency traffic, otherwise is non-emergent business;

Second carries out subelement 1422, is used for the judged result according to judgment sub-unit, receives the foundation request of urgency traffic, refuses the foundation request of non-emergent business.

Perhaps described access control network element can be AF, and shown in Figure 14 C, then described indication receiving element 1401 is used for receiving the message that sends from PCRF; Described decision-making performance element further comprises the 3rd judgment sub-unit 1430 and the 3rd execution subelement 1432, wherein,

The 3rd judgment sub-unit 1430 is used for receiving professional foundation request, determine whether professional foundation in the request carries urgent indication information or whether carry the QCI information that value is Emergency QCI, if carry above-mentioned information in the professional foundation request, the business of then determining request is urgency traffic, otherwise is non-emergent business;

The 3rd carries out subelement 1432, is used for the judged result according to judgment sub-unit, receives the foundation request of urgency traffic, refuses the foundation request of non-emergent business

The setting of access control network element can be determined by network side in the concrete network.The specific implementation of access control equipment also can be with reference to the description in the embodiment of the method for figure 9 correspondences.The embodiment of the invention provides multiple access control equipment, network side can be selected access control point is arranged on certain network equipment, such as AF, PCRF, PGW, thereby so that network management more flexibly effectively, by the decision-making mechanism of access control is set in the preorder network element in access path, can save the signalling amount of core network side, improve the treatment effeciency of network.When the zone of the current access of subscriber equipment is that prohibited area and user are when existing urgency traffic, equipment in the network is according to the indication information in the message that receives, only accept the foundation request of urgency traffic, refuse the foundation request of other business, so just can guarantee that UE can not receive the foundation request of urgency traffic other business in addition in this prohibited area, and receive only the foundation request of urgency traffic.

Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode in a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

In a word, the above is the preferred embodiment of technical solution of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the method for an access control is characterized in that, the method comprises:

Receive the access request of user equipment (UE);

The zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic;

When subscriber equipment does not have signaling bear, initiate the signaling bear Establishing process, set up signaling bear;

Described initiation signaling bear Establishing process, set up signaling bear and comprise:

Core management network element is the starting update load bearing flow process in the carrying of UE, and in the message that sends to gateway SGW or grouped data network gateway PGW, carrying indication information, being used to indicate SGW or PGW is signaling bear or carrying that can only command transmitting with described bearing modification; Perhaps

Core management network element is initiated the load creating flow process, and carry indication information in the message of SGW or PGW transmission, is used to indicate SGW or PGW and creates signaling bear; Perhaps

Core management network element and PCRF are mutual, obtain the PCC rule of signaling bear; According to described PCC rule, core management network element starting update load bearing flow process is signaling bear with the bearer update of UE, perhaps initiates the load creating flow process, creates signaling bear.

2. the method for access control according to claim 1 is characterized in that, described indication information comprises:

The quality of service class sign QCI that carries in the message, described QCI is set to signaling Signalling; Perhaps,

The QoS parameter that carries in the message carries the signaling indication information in the described QoS parameter.

3. the method for access control according to claim 1, it is characterized in that, the method also comprises: after SGW or PGW receive the message of core management network element transmission, according to the indication information in the message, PCRF is mutual with the "Policy and Charging Rules Function network element, obtain strategy and the charging control PCC rule of signaling bear, and according to the PCC rule of obtaining, starting update load bearing flow process or establishment carrying flow process.

4. the method for access control according to claim 1, it is characterized in that, after PGW receives the message of core management network element transmission, according to the indication information in the message, the PCC rule of signaling bear is set, and regular according to the PCC of the signaling bear that arranges, starting update load bearing flow process or establishment carrying flow process.

5. according to claim 3 or the method for 4 described access controls, it is characterized in that the method that PGW or PCRF arrange the PCC rule of signaling bear comprises:

For up filtering rule, the source address that arranges in the filtering rule is the IP address of UE, and IP address or the IP address of DNS or the IP address of DHCP Server that purpose IP address is proxy call conversation control function entity P-CSCF are set;

For descending filtering rule, the destination address that arranges in the filtering rule is the IP address of UE, and it is IP address or the IP address of DNS or the IP address of DHCP Server of P-CSCF that source IP address is set.

6. according to claim 1 or the method for 3 described access controls, it is characterized in that, the method also comprises, core management network element is in the message of PGW or SGW or PCRF transmission, perhaps PGW or SGW are in the message of PCRF transmission, also comprise the second indication information, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.

7. the method for access control according to claim 6, it is characterized in that, the method comprises that also PCRF sends message to PGW or application function network element AF, and in the message that sends, carry the second indication information, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.

8. the method for access control according to claim 7 is characterized in that, described the second indication information comprises:

Limited indication information, perhaps

The urgent indication information that uses, perhaps

The limit service pattern information.

9. according to claim 1 to the method for the described access control of 4 arbitrary claims, it is characterized in that the method also comprises: other carryings beyond deletion or the carrying of hang-up urgency traffic and the signaling bear.

10. an access control system is characterized in that, this system comprises core management network element and PGW, wherein

Core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, starting update load bearing flow process in the carrying of UE, and in the message that sends to PGW, carry indication information, indication PGW is signaling bear or carrying that can only command transmitting with described bearing modification, perhaps initiate the load creating flow process, and in the message that sends to PGW, carrying indication information, indication PGW creates signaling bear;

PGW is used for setting up signaling bear according to the core management network element indication.

11. access control system according to claim 10 is characterized in that,

Described PGW is further used for the indication according to core management network element, and the PCC rule of signaling bear is set, and according to described PCC rule, starting update load bearing flow process or establishment carrying flow process.

12. access control system according to claim 10 is characterized in that;

This system further comprises PCRF, is used for the request according to PGW, the PCC rule of signaling bear is set and sends the PCC rule of this signaling bear to PGW;

Described PGW is further used for the indication according to core management network element, and to the PCC rule of PCRF demand signalling carrying, thereby the PCC that obtains signaling bear is regular, and according to described PCC rule, starting update load bearing flow process or establishment carrying flow process.

13. according to claim 10 to the described access control system of 12 arbitrary claims, it is characterized in that, core management network element is further used for carrying the second indication information in the message that sends to PGW, perhaps PGW is further used for carrying the second indication information in the message of PCRF transmission, perhaps PCRF is further used for carrying the second indication information in the message of AF transmission, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.

14. an access control system is characterized in that this system comprises core management network element, SGW and PCRF, wherein

Core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, starting update load bearing flow process in the carrying of UE, and in the message that sends to SGW, carry indication information, indication SGW is signaling bear or carrying that can only command transmitting with described bearing modification, perhaps initiate the load creating flow process, and in the message that sends to SGW, carrying indication information, indication SGW creates signaling bear;

SGW, for according to the core management network element indication, to the PCC rule of PCRF demand signalling carrying, and according to the PCC rule of obtaining, starting update load bearing flow process or establishment carrying flow process are set up signaling bear;

PCRF is used for the request according to SGW, the PCC rule of signaling bear is set, and sends to SGW.

15. access control system according to claim 14, it is characterized in that, described core management network element also is used for carrying the second indication information to the message that SGW sends, perhaps described SGW also is used for carrying the second indication information to the message that PCRF sends, perhaps PCRF also is used for carrying the second indication information to the message that AF sends, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.

16. an access control system is characterized in that this system comprises core management network element and PCRF, wherein

Described core management network element is used for receiving the access request of subscriber equipment, the zone of determining the current access of subscriber equipment is that prohibited area and user exist urgency traffic, and when subscriber equipment does not have signaling bear, to the PCC rule of PCRF demand signalling carrying, thereby the PCC that obtains signaling bear is regular, and according to described PCC rule, initiate the bearer update flow process, be signaling bear with the bearer update of UE, perhaps initiate the load creating flow process, create signaling bear;

PCRF is used for the request according to core management network element, the PCC rule of signaling bear is set, and sends to core management network element.

17. access control system according to claim 16, it is characterized in that, described core management network element also is used for carrying the second indication information to the message that PCRF sends, and is used to indicate the foundation request that PCRF receives only urgency traffic, refuses the foundation request of other business.

18. a core management network element is characterized in that, comprising:

Receiving element is for the access request that receives subscriber equipment;

Determining unit is used for determining that the zone of the current access of subscriber equipment is that prohibited area and user exist urgency traffic;

The unit is set up in carrying, and being used for determining the zone of the current access of subscriber equipment when determining unit is prohibited area and user when having urgency traffic, determines that subscriber equipment does not have signaling bear, then initiates the signaling bear Establishing process, sets up signaling bear;

Described carrying is set up the unit and is comprised:

The bearer update subelement is used for starting update load bearing flow process in the carrying of UE, is carrying indication information in the message that sends to SGW or PGW, and being used to indicate SGW or PGW is signaling bear or carrying that can only command transmitting with described bearing modification; Perhaps

The load creating subelement is used for initiating the load creating flow process, carry indication information in the message of SGW or PGW transmission, is used to indicate SGW or PGW and creates signaling bear.

19. core management network element according to claim 18 is characterized in that, described core management network element also comprises:

PCC Rule unit for mutual with PCRF, obtains the PCC rule of signaling bear;

Then described carrying is set up the unit also for the PCC rule of obtaining according to described PCC Rule unit, starting update load bearing flow process in the carrying of UE, be signaling bear or carrying that can only command transmitting with described bearing modification, perhaps be used for initiating the load creating flow process, in the message of SGW or PGW transmission, carrying indication information, be used to indicate SGW or PGW and create signaling bear.

20. according to claim 18 or 19 described core management network elements, it is characterized in that, core management network element also comprises adding device, be used for adding the second indication information to the message of PGW, SGW or PCRF transmission, be used to indicate the foundation request that the network element that receives the message that includes the second indication information receives only urgency traffic, refuse the foundation request of other business.