CN101730150B - Method for controlling network resources during service flow transfer - Google Patents
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Abstract
The invention provides a method for controlling network resources during service flow transfer. In a service flow transfer process, a user terminal UE sends resource control information to a gateway of a target network, and the gateway of a source network or the target network controls the network resources of the network of the gateway according to the resource control information and a corresponding service quality QoS policy. In the method, during service flow transfer, the network gateway capable of accessing the network resources of the source network and the target network acquires the resource control information and controls the network resources according to the resource control information, so the controllability of the network sources is strengthened effectively.
Description
Technical field
The present invention relates to moving communicating field, when being specifically related to a kind of service flow transfer to the control method of carrying out of Internet resources.
Background technology
Third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) grouping system (the Evolved Packet System of evolution, abbreviate EPS as) by universal mobile telecommunications system land radio access web (the Evolved Universal Terrestrial Radio AccessNetwork of evolution, abbreviate E-UTRAN as), mobile management unit (Mobility Management Entity, abbreviate MME as), gateway (Serving Gateway, S-GW), grouped data network gateway (Packet Data Network Gateway, abbreviate P-GW or PDN GW as), home subscriber server (Home Subscriber Server, abbreviate HSS as), authentication and authorization charging (the Authentication of 3GPP, Authorization and Accounting, abbreviate AAA as) server, "Policy and Charging Rules Function (Policy and Charging Rules Function abbreviates PCRF as) entity and other support nodes are formed.
Fig. 1 is the schematic diagram according to the system architecture of the EPS of correlation technique, and as shown in Figure 1, MME is responsible for the related work of chains of command such as the processing of mobile management, Non-Access Stratum signaling and the contextual management of user's mobile management; S-GW is the accessing gateway equipment that links to each other with E-UTRAN, transmits data between E-UTRAN and P-GW, and is responsible for pending datas such as paging are carried out buffer memory; P-GW then is the borde gateway of EPS and packet data network (Packet Data Network abbreviates PDN as) network, and the access of being responsible for PDN reaches functions such as transmitting data between EPS and PDN; PCRF is the "Policy and Charging Rules Function entity, it is by receiving interface Rx and carrier network agreement (Internet Protocol, abbreviating IP as) business network links to each other, obtain business information, in addition, it links to each other with gateway device in the network by the Gx/Gxa/Gxc interface, be responsible for initiating the foundation of IP carrying, guarantee the service quality (Quality of Service abbreviates QoS as) of business datum, and the control of chargeing.
EPS supports the intercommunication with non-3 GPP system, wherein, passes through the S2a/b/c interface with the intercommunication of non-3 GPP system and realizes that P-GW is as the anchor point between 3GPP and non-3 GPP system.In the system architecture diagram of EPS, non-3 GPP system is divided into the non-3GPP IP access of trusted and trustless non-3GPP IP inserts.The non-3GPP IP of trusted inserts and can directly be connected with P-GW by the S2a interface; Trustless non-3GPPIP inserts packet data gateway (the Evolved Packet Data Gateway that needs through evolution, abbreviate ePDG as) link to each other with P-GW, interface between ePDG and P-GW is S2b, S2c provides subscriber equipment (User Equipment, abbreviate UE as) control and the mobility support relevant with user's face between the P-GW, the mobility management protocol of its support is for supporting the mobile IP v 6 (Moblie IPv6Support for Dual Stack Hosts and Routers abbreviates DSMIPv6 as) of two stacks.
Among the EPS system, strategy and charge execution function (Policy and Charging EnforcementFunction abbreviates PCEF as) entity are present among the P-GW Gx interface (see figure 1) exchange message between PCRF and the P-GW.When the interface between P-GW and S-GW during based on PMIPv6, S-GW also has bearing binding and event reporting function (Bearer Binding and Event Report Function, abbreviate BBERF as) entity carries out QoS control to business data flow, between S-GW and the PCRF by Gxc interface (see figure 1) exchange message.When inserting by the non-3GPP connecting system of trusted, the trusted non-3 GPP access network Central Shanxi Plain is resident BBERF also.Pass through Gxa interface (see figure 1) exchange message between trusted non-3 GPP access network pass and the PCRF.When UE roams, the S9 interface is as the interface of ownership place PCRF and visit ground PCRF, provide professional application function (Application Function for UE simultaneously, abbreviate AF as), send for generating strategy and charge the tactful business information of control (Policy andCharging Control abbreviates PCC as) to PCRF by Rx interface.In 3GPP, can find corresponding PDN network by APN (Access Point Name abbreviates APN as).Usually UE is called the session of an IP connection Access Network (IP Connectivity AccessNetwork abbreviates IP-CAN as) to a connection of PDN network.In the process of setting up the IP-CAN session, BBERF and PCEF respectively and set up the Diameter session between the PCRF transmit the policy, billing information that this IP-CAN session is controlled and the information that is used for generating strategy etc. by these Diameter sessions.
EPS supports UE to insert a PDN, i.e. Multiple Access (multiple access) by a plurality of Access Networks simultaneously.As shown in Figure 2, UE under the covering of non-3GPP and 3GPP access, is linked into PDN by non-3GPPIP Access Network and 3GPP Access Network by same P-GW simultaneously.Under this scene, P-GW is that UE distributes an IP address, namely has only an IP-CAN session between UE and the PDN.Like this, the data flow of the different business of UE request can be transmitted in the Access Network that is fit to its transmission.When for example non-3 GPP access network was WiFi, the business data flow of Http and Ftp just can pass through the WiFi Access Network, and meanwhile the business data flow of VoIP just can send to UE by 3GPP.Require lower business can bring into play the lower advantage of WiFi rate for this real-time of Http and Ftp like this, and can bring into play the QoS control of 3GPP, mobile management good advantage for the business that this real-time of VoIP is had relatively high expectations.
Under the multiple access scene, the user can use multiple business by different connecting systems simultaneously, these Business Streams can also be realized dynamic migration between connecting system.Cause the reason of service flow transfer to have multiple, can be wireless signal cover factor (as, the indoor multiple wireless signal of 3GPP and non-3GPP that exists covers, and outdoor the 3GPP network signal only arranged), when the network signal that covers changes, in order to continue to use some business, user to wish the partial service in the source network is migrated to objective network, business migration is answered these user-dependent all information in the source of release network after finishing.In addition, service flow transfer also can be caused by user intention, this moment, the user was in the coverage of multiple Access Network, consider that some professional operation rate is not good, decision should business migrates to another kind of connecting system from source network and transmits, in this case, other business are kept in the reply source network, and can not be as all information of this user in the wireless signal coverage condition deletion source network.Yet when Business Stream moved between different system, existing network can't judge the service flow transfer factor, thereby can not learn whether need source of release network user relevant information, caused Internet resources to be controlled preferably and to manage.
Wish to move under the situation of partial service stream the user, because network can't learn which Business Stream the user wishes to move, to this, a kind of solution party's rule of existing network is to set up default bearing earlier, carry out dedicated bearing again and set up, when service flow transfer be wireless signal cover factor (as, the indoor multiple wireless signal of 3GPP and non-3GPP that exists covers, and outdoor the 3GPP network signal only arranged), then may make carrying longer settling time.Certainly, after existing network also can together be set up default bearing and dedicated bearing, allow the user initiate the business of not wishing to move is deleted, obviously, this method not only can prolong the stream migration process, increase the network processes burden, and may collect more professional usage charges to the user, experience thereby reduce the user.
Summary of the invention
The technical problem to be solved in the present invention is, when a kind of stream migration is provided to the method for the control of Internet resources, to have strengthened the controllability to Internet resources effectively.
For solving the problems of the technologies described above, the method of when the invention provides a kind of service flow transfer Internet resources being controlled, in the service flow transfer process, user terminal UE sends resource control information the gateway of objective network to, and the gateway of source network or objective network carries out control operation according to described resource control information or corresponding QoS policy to place network of network resource.
Further, the gateway of described objective network is the grouped data network gateway P-GW that source network and objective network share, described resource control information is that resource discharges indication, and described P-GW discharges indication according to described resource whether the Internet resources of source network are deleted the judgement of source network resource and carried out releasing operation.
Further, described resource control information is to set up that default bearing, 3GPP revise that bearing resource, the non-3GPP of trusted connect, trustless non-3GPP connects or 3GPP sets up in the process that PDN connects at 3GPP, transmits described P-GW's by user terminal UE through network element.
Further, the process that described 3GPP revises bearing resource is to set up the process of dedicated bearing, described P-GW obtains described resource release indication like this: carry described resource release indication during the bearing resource modification that user terminal UE sends to mobile management unit MME is asked, described resource discharges to indicate to revise to the bearing resource of described P-GW to the bearing resource modification request of S-GW transmission, described S-GW by described MME successively asks or acts on behalf of the bandage updating message to be uploaded to described P-GW.
Further, need set up when stream migration under the situation of a plurality of dedicated bearings, described resource release indication is carried when in the end a dedicated bearing is set up.
Further, described resource discharges indication and utilizes protocol configuration option PCO to carry, and comprises that network coverage sign, handoff scenario sign, deletion action sign maybe need discharge the network identity of resource.
Further, to be described UE set up or PDN connects and sets up or dedicated bearing sends the gateway of objective network when setting up at default bearing described resource control information, and described resource control information comprises the stream information that needs to set up and/or need deletion; The control operation of described Internet resources is performed such: described objective network gateway is initiated the foundation operation of respective carrier according to the corresponding qos policy of described resource control information; Described source network gateway discharges the source network resource of described stream information correspondence.
Further, described resource control information is that described UE sends objective network gateway and Common Gateway to when default bearing foundation, PDN connection foundation or dedicated bearing are set up, described Common Gateway refers to grouped data network gateway P-GW, and described resource control information comprises needs to set up the stream information that maybe need delete; The control operation of described Internet resources is performed such: described objective network gateway is initiated the foundation operation of respective carrier according to qos policy; Described P-GW discharges the source network resource of this stream information correspondence.
Further, described QoS policy be obtain by "Policy and Charging Rules Function PCRF or static configuration.
Further, described source network or objective network gateway refer to the gateway at bearing binding and event reporting function BBERF or strategy and charge execution function PCEF place.
Further, described Business Stream information is service template stream TFT information, packet filtering device sign or the qos parameter that utilizes protocol configuration option PCO to carry.
The method of during service flow transfer of the present invention Internet resources being controlled, when service flow transfer, the network gateway that the Internet resources of source network and objective network is had knowability obtains resource control information, and according to this resource control information Internet resources are carried out control operation, thereby saved the service flow transfer process effectively, improve network operation efficient, strengthened the controllability to Internet resources effectively.
Description of drawings
Fig. 1 is the schematic diagram of EPS system architecture.
Fig. 2 is the scene schematic diagram of multiple access.
Fig. 3 is the flow chart of the embodiment of the invention one.
Fig. 4 is the flow chart of the embodiment of the invention two.
Fig. 5 is the flow chart of the embodiment of the invention three.
Fig. 6 is the flow chart of the embodiment of the invention four.
Fig. 7 is the flow chart of the embodiment of the invention five.
Fig. 8 is the flow chart of the embodiment of the invention six.
Fig. 9 is the flow chart of the embodiment of the invention seven.
Figure 10 is the flow chart of the embodiment of the invention eight.
Figure 11 is the flow chart of the embodiment of the invention nine.
Embodiment
The method of during service flow transfer of the present invention Internet resources being controlled, in the service flow transfer process, user terminal UE sends resource control information the gateway of objective network to, and the gateway of source network or objective network carries out control operation according to described resource control information or corresponding QoS policy to place network of network resource.
The inventive method can be controlled the resource of source network and objective network, and said source network refers to service flow transfer residing network system before among the present invention; Objective network refers to service flow transfer residing network system afterwards.
The said resource control information of the present invention can be that resource discharges indication or Business Stream information.
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in further detail, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
The said resource of the present invention discharges indication expression UE and informs whether network side needs this UE related resource of source of release network, and not to the control of target network resource (as, set up or deletion) judge, and in objective network, have only Common Gateway P-GW for the source network resource of UE have knowability (as, P-GW has preserved the beared information of UE in source network), therefore resource discharges indication and need inform P-GW in the objective network loading establishing process when stream migration, by P-GW to whether carrying out the deletion of source network resource and judge and carry out the respective handling operation.
Described resource control information is to set up that default bearing, 3GPP revise that bearing resource, the non-3GPP of trusted connect, trustless non-3GPP connects or 3GPP sets up in the process that PDN connects at 3GPP, transmits described P-GW's by user terminal UE through network element.One to embodiment six be described in detail by the following examples.
Embodiment one
Fig. 3 is the flow process of the embodiment of the invention one.UE at first is linked into P-GW by the trusted non-3 GPP access network, after the UE decision is moved to the 3GPP Access Network with some Business Stream from non-3 GPP access network, carries out the flow process that default bearing is set up in the 3GPP Access Network.When wherein inserting by 3GPP, core net can adopt PMIPv6 agreement, GTP (General Tunneling Protocol, general tunnel protocol) or DSMIP agreement.In order to simplify description, it is example that present embodiment only adopts the scene of PMIP agreement with the 3GPP core net, and other realize scene, as employing GTP, and the situation of DSMIP agreement, very similar to present embodiment, can not impact setting forth the present invention, so be not repeated at this.
In an embodiment, P-GW obtains described resource to discharge indication like this: when the 3GPP default bearing was set up, user terminal UE carried described resource to adhering to of node eNB transmission and discharges indication in the request; Described resource discharge indication successively by described eNB to the default bearing request of setting up that request, described MME send to gateway S-GW of adhering to of sending of mobile management unit MME and the default bearing request of setting up from described S-GW to described P-GW transmission or act on behalf of the bandage updating message and be uploaded to described P-GW.The present embodiment concrete steps are described below:
Step 301, UE inserts by the trusted non-3 GPP system, and relevant business is arranged in this connection transmission;
Step 302, UE determines some Business Stream is migrated to the 3GPP connecting system from non-3 GPP system according to local policy;
Step 303, UE sends Attach Request message to MME, carries resource and discharges indication;
Step 304 is carried out UE access authentication and position renewal by HSS;
Step 305, MME sends default bearing to S-GW and sets up request message, carries resource and discharges indication;
Step 306, S-GW initiates gateway control session to PCRF and sets up, and obtains bearing binding desire rule information;
Step 307, S-GW sends " agent binding update " request message to P-GW, wherein, should carry NAI, APN and resource release indication in " agent binding update " request message;
Step 308, the Diameter session of setting up between the P-GW of the resident PCEF of having and the PCRF sends " IP-CAN session modification " message to PCRF, and PCRF returns " affirmation of IP-CAN session modification " message to P-GW.
Step 309, P-GW handles Binding Update, and returns " agent binding affirmation " message to S-GW, and carrying P-GW is the UE IP address allocated;
Step 310, S-GW returns default bearing to MME and sets up acknowledge message, and wherein, this default bearing is set up the IP address that acknowledge message carries UE;
Step 311, mutual between MME, eNodeB, the UE, set up radio bearer;
Step 312, after radio bearer was set up, MME sent more new bearer request to S-GW, the address information of notice eNodeB etc., S-GW echo reply message;
Step 313 discharges indication according to the resource of carrying in " agent binding update " request message (seeing step 307), and P-GW initiates non-3GPP connecting system resource dispose procedure.This release flow process can occur in after the step 308.
Embodiment two
Fig. 4 is the flow process of the embodiment of the invention two.At first UE is linked into same P-GW by the non-3GPP of trusted and 3GPP Access Network, after the UE decision is moved to the 3GPP Access Network with some Business Stream from non-3 GPP access network, initiates the flow process that dedicated bearing is set up in the 3GPP Access Network.Adopt the GTP agreement when wherein inserting by 3GPP between S-GW and the P-GW.
Be to obtain described resource like this to discharge indication at P-GW described in embodiment two and the embodiment three: when the 3GPP bearing resource is revised, carry described resource release indication during the bearing resource modification that user terminal UE sends to mobile management unit MME is asked, described resource discharges to indicate to revise to the bearing resource of described P-GW to the bearing resource modification request of S-GW transmission, described S-GW by described MME successively asks or acts on behalf of the bandage updating message to be uploaded to described P-GW.S-GW sends agent binding update messages to P-GW after receiving the dedicated bearing foundation request that MME sends, P-GW is to S-GW response binding acknowledgement message.The concrete steps of embodiment two are described below:
Step 401, UE inserts same P-GW by 3GPP and non-3 GPP access network, and has relevant business to transmit by non-3 GPP system;
Step 402, UE determines some Business Stream is migrated to the 3GPP connecting system from non-3 GPP system according to local policy;
Step 403, UE sends bearing resource to MME and revises request, to set up dedicated bearing, wherein carries resource and discharges indication;
Step 404, MME sends bearing resource and revises request to S-GW, to set up dedicated bearing, carries resource equally and discharges indication;
Step 405, S-GW sends bearing resource to P-GW and revises request, to set up dedicated bearing, carries resource and discharges indication;
Step 406, P-GW and PCRF are mutual, begin to carry out the IP-CAN session updates;
Step 407, P-GW initiates the flow process of setting up of dedicated bearing;
Step 408, after dedicated bearing foundation was finished, P-GW informed the PCRF policy execution result, the IP-CAN session updates finishes;
Step 409 is set up the resource of carrying in the request (seeing step 405) according to dedicated bearing and is discharged indication, and P-GW initiates non-3 GPP system resource dispose procedure.This release flow process can occur in after the step 406.
Embodiment three
Fig. 5 is the flow process of the embodiment of the invention three.At first UE is linked into same P-GW by the non-3GPP of trusted and 3GPP Access Network, after the UE decision is moved to the 3GPP Access Network with some Business Stream from non-3 GPP access network, initiates the flow process that dedicated bearing is set up in the 3GPP Access Network.Adopt the PMIP agreement when wherein inserting by 3GPP between S-GW and the P-GW.Concrete steps are described below:
Step 501, UE inserts same P-GW by 3GPP and non-3 GPP access network, and has relevant business to transmit by non-3 GPP system;
Step 502, UE determines some Business Stream is migrated to the 3GPP connecting system from non-3 GPP system according to local policy;
Step 503, UE sends bearing resource to MME and revises request, to set up dedicated bearing, wherein carries resource and discharges indication;
Step 504, MME sends bearing resource and revises request to S-GW, to set up dedicated bearing, carries resource equally and discharges indication;
Step 505, S-GW initiates the request of gate and qos policy to PCRF;
Step 506, S-GW sends agent binding update messages to P-GW, carries resource and discharges indication;
Step 507, P-GW replys agent binding update and replys;
Step 508, S-GW initiates the flow process of setting up of 3GPP dedicated bearing;
Step 509, after dedicated bearing foundation was finished, S-GW informed the PCRF policy execution result, gate and qos policy implementation finish;
Step 510, PCRF upgrades the QOS strategy to P-GW;
Step 511 discharges indication according to the resource of carrying in the agent binding update messages (seeing step 506), and P-GW initiates non-3 GPP system resource dispose procedure.
Embodiment four
Fig. 6 is the flow process of the embodiment of the invention four.UE at first is linked into the EPS system by the 3GPP Access Network, when UE determines some Business Stream to connect the flow process of foundation in the trusted non-3 GPP access network after the 3GPP Access Network is moved to the trusted non-3 GPP access network.When wherein inserting by the non-3GPP of trusted, adopt the PMIPv6 agreement between trusted non-3 GPP access network and the P-GW.
Described P-GW obtains described resource to discharge indication so in the present embodiment: the non-3GPP of trusted connects when setting up, user terminal UE closes to the trusted non-3 GPP access network and adhering to of sending carries described resource release indication in the request, and described resource release indication is closed to the bandage updating message of acting on behalf of of P-GW transmission by described trusted non-3 GPP access network and is uploaded to described P-GW.
The present embodiment concrete steps are described below:
Step 601, UE is linked into the EPS system by the 3GPP Access Network, and relevant business is arranged in this connection transmission, wherein sets up data channel by GTP or PMIPv6 agreement between S-GW and the P-GW;
Step 602, UE determines some Business Stream from the 3GPP system migration to non-3GPP connecting system according to local policy;
Step 603, UE carries out specific non-3GPP access procedure, inserts the trusted non-3 GPP access network;
Step 604 after UE is linked into the trusted non-3 GPP access network, is carried out the EPS access authentication to the HSS/AAA request; After HSS/AAA receives the request of EPS access authentication, the UE of the request of sending is authenticated; After HSS/AAA finishes authentication to UE, close to send to the trusted non-3 GPP access network and return P-GW and the signatory APN of UE that in 3GPP inserts, selects, comprise acquiescence APN;
Step 605, after authentication success, the attachment flow of layer 3 is triggered, and the message that UE sends to the trusted IAD is carried resource and is discharged indication;
Step 606 is carried out gateway control session between trusted non-3 GPP access network pass and the PCRF and is set up process;
Step 607, the trusted non-3 GPP access network closes to P-GW and sends " agent binding update " request message, wherein, should carry NAI, APN and resource release indication in " agent binding update " request message;
Step 608 is carried out IP-CAN session modification process between P-GW and the PCRF;
Step 609, P-GW closes to the trusted non-3 GPP access network and returns " agent binding affirmation " message, and wherein, being somebody's turn to do and carrying P-GW in " agent binding affirmation " message is the UE IP address allocated;
Step 610, the trusted non-3 GPP access network closes to UE echo reply message, and wherein, this response message carries the IP address of UE.
Step 611 discharges indication according to the resource of carrying in " agent binding update " request message (seeing step 607), and P-GW initiates 3GPP connecting system resource dispose procedure.
Embodiment five
Fig. 7 is the flow process of the embodiment of the invention five.UE at first is linked into the EPS system by the 3GPP Access Network, when UE determines some Business Stream to connect the flow process of foundation in the trusted non-3 GPP access network after the 3GPP Access Network is moved to the trusted non-3 GPP access network.When wherein inserting by the non-3GPP of trusted, UE adopts DSMIPv6 to insert.
Described P-GW obtains resource to discharge indication so in the present embodiment: the non-3GPP of trusted connects when setting up, and user terminal UE sends the bandage updating message to P-GW, wherein carries described resource and discharges indication.The present embodiment concrete steps are described below:
Step 701, UE is linked into the EPS system by the 3GPP Access Network, and relevant business is arranged in this connection transmission, wherein sets up data channel by GTP or PMIPv6 agreement between S-GW and the P-GW;
Step 702, UE determines some Business Stream from the 3GPP system migration to non-3GPP connecting system according to local policy;
Step 703, layer 2 inserts.UE inserts by the trusted non-3 GPP access network, and the UE of HSS/AAA carries out the access authentication mandate;
Step 704, behind the authentication success, the layer 3 of setting up UE and the non-3GPP connecting system of trusted is connected.Connecting system is that UE distributes an IP address as the Care-of Address CoA of UE;
Step 705, UE carries out DNS inquiry, the IP address that obtains the P-GW that access business network is provided according to APN.Set up Security Association between UE and the P-GW, and be UE distribution home address HoA.P-GW and HSS carry out the Certificate Authority flow process alternately;
Step 706, UE sends " Binding Update " request message to P-GW, carries resource and discharges indication;
Step 707, P-GW closes to the trusted non-3 GPP access network and returns " binding acknowledgement " message;
Step 708 discharges indication according to the resource of carrying in " Binding Update " request message (seeing step 706), and P-GW initiates 3GPP connecting system resource dispose procedure.
Embodiment six
Fig. 8 is the flow process of the embodiment of the invention six.UE at first is linked into the EPS system by the 3GPP Access Network, when UE determines some Business Stream to connect the flow process of foundation by ePDG in trustless non-3 GPP access network after the 3GPP Access Network is moved to trustless non-3 GPP access network.When wherein inserting by trustless non-3GPP, set up ipsec tunnel between UE and the ePDG, adopt PMIPv6 to insert between ePDG and the P-GW.
Described P-GW obtains resource to discharge indication so in the present embodiment: trustless non-3GPP connects when setting up, user terminal UE sets up to the tunnel that ePDG sends and carries described resource release indication in the request, and described resource discharges indication and is uploaded to described P-GW by described ePDG to the bandage updating message of acting on behalf of that described P-GW sends.The present embodiment concrete steps are described below:
Step 801, UE is linked into the EPS system by the 3GPP Access Network, and relevant business is arranged in this connection transmission, wherein sets up data channel by GTP or PMIPv6 agreement between S-GW and the P-GW;
Step 802, UE determines some Business Stream from the 3GPP system migration to non-3GPP connecting system according to local policy;
Step 803, UE obtains the address of ePDG by the DNS inquiry, and to this ePDG initiation IKEv2 (internet key exchange version 2, Internet Key Exchange Protocol Version 2) foundation in authentication and IPsec tunnel, UE discharges resource to indicate and carries to ePDG in this step; EPDG and HSS/AAA carry out access authentication and mandate to UE alternately.
Step 804, after the authentication success, the attachment flow of layer 3 is triggered, and ePDG sends " Binding Update " request message to P-GW, carries resource and discharges indication;
Step 805, P-GW handles Binding Update, returns " binding acknowledgement " message to ePDG, will distribute to the IP address strap of UE and give ePDG in message;
Step 806, after Binding Update completed successfully, ePDG was by UE success authentication, and the IPsec tunnel is set up and is finished.
Step 807, ePDG sends the IKEv2 signaling, gives UE with the IP address strap of distributing to UE.IP from UE to P-GW connects foundation to be finished.
Step 808 discharges indication according to the resource of carrying in " Binding Update " request message (seeing step 804), and P-GW initiates 3GPP connecting system resource dispose procedure.
Carry out PDN for 3GPP and the non-3GPP of trusted and be connected situation about setting up, flow process only needs to be connected the request of foundation with asking to be replaced with PDN adhering to of Fig. 3 and Fig. 6, resource discharges indication and carries in PDN connection foundation request, very similar to the embodiment that above-mentioned default bearing is set up, particularly, described P-GW obtains resource to discharge indication like this: when 3GPP sets up the PDN connection, user terminal UE carries described resource release indication in the PDN connection request of eNB transmission, described resource discharges indication and passes through described eNB successively to the PDN connection request of MME, described MME asks or acts on behalf of the bandage updating message to be uploaded to described P-GW to the default bearing foundation that P-GW sends to the default bearing request of setting up and the described S-GW that S-GW sends.
For above-described embodiment, source network is represented service flow transfer residing network system before.Insert in terminal before the stream migration under the situation of a plurality of systems, need to point out deletion source network resource if resource discharges, then this indication can comprise one or more network identities that should discharge resource.
When stream migration, need set up under the situation of a plurality of dedicated bearings, then need to carry when in the end a dedicated bearing is set up resource and discharge indication.
In addition, UE informs that the indication of P-GW deletion source network resource can carry by protocol configuration option PCO in message, this resource discharges indication and can be: network coverage sign, handoff scenario sign, deletion action sign, need migration or/and need the stream information of deletion.
Described resource discharges indication and utilizes protocol configuration option PCO to carry, and comprises the network identity that network coverage sign, handoff scenario sign, deletion action sign maybe need discharge.
P-GW can delete needs migration or/and need the relevant Internet resources of stream information of deletion.
Discharge indication if P-GW gets access to resource, perhaps think needs deletion source network resource according to indication, then P-GW can not initiate the release of source network resource, perhaps the network carrying that only no any Business Stream transmits in the source of release network.
Following examples seven to embodiment nine show that described resource control information is the scene of Business Stream information:
Embodiment seven
Fig. 9 is the flow process of the embodiment of the invention seven.UE at first is linked into P-GW (core net adopts the PMIP agreement) by the trusted non-3 GPP access network, after the UE decision is moved to the 3GPP Access Network with some Business Stream from non-3 GPP access network, in the 3GPP Access Network, carry out the flow process that default bearing and dedicated bearing are set up.When wherein inserting by 3GPP, core net adopts GTP (General TunnelingProtocol, general tunnel protocol) agreement.
Described P-GW obtains described Business Stream information so in the present embodiment: set up or PDN connects when setting up at the 3GPP default bearing, user terminal UE is to adhering in request or the PDN connection foundation request of node eNB transmission carrying described Business Stream information, described Business Stream information connects the default bearing request of setting up that the request of foundation, MME send to S-GW by eNB to adhere to request or the PDN that MME sends successively, and S-GW sets up request or acts on behalf of the bandage updating message to the default bearing of P-GW and is uploaded to described P-GW.The present embodiment concrete steps are described below:
Step 901, UE inserts by the trusted non-3 GPP system, and relevant business is arranged in this connection transmission;
Step 902, UE determines some Business Stream is migrated to the 3GPP connecting system from non-3 GPP system according to local policy;
Step 903, UE sends Attach Request message to MME, and carrying needs migration or/and need the Business Stream information of deletion;
Step 904 is carried out UE access authentication and position renewal by HSS;
Step 905, MME sends default bearing to S-GW and sets up request message, and carrying needs migration or/and need the Business Stream information of deletion;
Step 906, S-GW sends default bearing to P-GW and sets up request message, and carrying in the message needs migration or/and need the Business Stream information of deletion;
Step 907, P-GW can be mutual with PCRF, carries out the IP-CAN session updates, carries the corresponding PCC decision-making of stream information, i.e. qos policy to trigger with step 906;
Step 908, P-GW initiates default bearing foundation and replys; Simultaneously, the qos policy that P-GW returns according to PCRF or use the qos policy of local configuration to distribute bearing bed QoS, and need to initiate the dedicated bearing of migration stream information correspondence to set up flow process;
Step 909, S-GW sends default bearing foundation to MME and replys, and the foundation request of dedicated bearing;
Step 910, mutual between MME, eNodeB, the UE, set up radio bearer, comprise default bearing and dedicated bearing;
Step 911, after radio bearer was set up, MME sent more new bearer request to S-GW, the address information of notice eNodeB etc., S-GW echo reply message; S-GW sets up to P-GW response dedicated bearing and replys simultaneously;
Step 912, non-3 GPP access network are closed the qos policy that returns according to PCRF to existing deleting load-bearing Business Stream, and discharge the network carrying that no any Business Stream transmits in the non-3GPP connecting system, so that processing is controlled in non-3GPP connection to trusted.Perhaps, the P-GW need migration of carrying according to step 906 is or/and need the stream information of deletion to discharge the corresponding resource of non-3GPP connecting system.
Embodiment eight
Figure 10 is the flow process of the embodiment of the invention eight.UE at first is linked into P-GW (core net adopts the PMIPv6 agreement) by the trusted non-3 GPP access network, after the UE decision is moved to the 3GPP Access Network with some Business Stream from non-3 GPP access network, in the 3GPP Access Network, carry out the flow process that default bearing and dedicated bearing are set up.When wherein inserting by 3GPP, core net adopts the PMIP agreement.
In this example, described S-GW obtains described Business Stream information like this: set up or PDN connects when setting up at the 3GPP default bearing, user terminal UE connects in the request of foundation and carries described Business Stream information to adhere to request or the PDN that node eNB sends, and described Business Stream information connects the default bearing request of setting up that the request of foundation, MME send to S-GW by eNB to adhere to request or the PDN that MME sends successively.The present embodiment concrete steps are described below:
Step 1001, UE inserts by the trusted non-3 GPP system, and relevant business is arranged in this connection transmission;
Step 1002, UE determines some Business Stream is migrated to the 3GPP connecting system from non-3 GPP system according to local policy;
Step 1003, UE sends Attach Request message to MME, and carrying needs migration or/and need the stream information of deletion;
Step 1004 is carried out UE access authentication and position renewal by HSS;
Step 1005, MME sends default bearing to S-GW and sets up request message, and carrying needs migration or/and need the stream information of deletion;
Step 1006, S-GW initiates gateway control session to PCRF and sets up;
Step 1007, S-GW sends " agent binding update " request message to P-GW, wherein, should carry NAI, APN in " agent binding update " request message;
Step 1008, the Diameter session of setting up between the P-GW of the resident PCEF of having and the PCRF sends " IP-CAN session modification " message to PCRF, and PCRF returns " affirmation of IP-CAN session modification " message to P-GW, carries the QoS rule.
Step 1009, P-GW handles Binding Update, and returns " agent binding affirmation " message to S-GW, and carrying P-GW is the UE IP address allocated;
Step 1010, PCRF and S-GW are mutual, carry out the gateway control session modification process, and S-GW carries stream information with step 1005 and is sent to PCRF, and need to obtain the QoS rule of migration stream information correspondence;
Step 1011, S-GW sends default bearing foundation to MME and replys, and according to QoS rule or local policy that PCRF returns, needs the corresponding dedicated bearing of migration stream information to set up flow process; Carry out between MME, eNodeB, the UE setting up radio bearer alternately, comprise default bearing and dedicated bearing;
Step 1012, after dedicated bearing foundation was finished, P-GW informed the PCRF policy execution result, gateway control and QoS rule implementation finish;
Step 1013, trusted non-3 GPP access network are closed the qos policy that provides according to PCRF to existing deleting load-bearing Business Stream, and discharge the network carrying that no any Business Stream transmits in the non-3GPP connecting system, so that processing is controlled in non-3GPP connection to trusted.
Embodiment nine
Figure 11 is the flow process of the embodiment of the invention nine.UE at first is linked into EPS system (core net adopts the GTP agreement) by the 3GPP Access Network, when UE determines some Business Stream to connect the flow process of foundation in the trusted non-3 GPP access network after the 3GPP Access Network is moved to the trusted non-3 GPP access network.When wherein inserting by the non-3GPP of trusted, adopt the PMIPv6 agreement between trusted non-3 GPP access network and the P-GW.The present embodiment concrete steps are described below:
Step 1101, UE is linked into the EPS system by the 3GPP Access Network, and relevant business is arranged in this connection transmission, wherein sets up data channel by the GTP agreement between S-GW and the P-GW;
Step 1102, UE determines some Business Stream from the 3GPP system migration to non-3GPP connecting system according to local policy;
Step 1103, UE carries out specific non-3GPP access procedure, inserts the trusted non-3 GPP access network;
Step 1104 after UE is linked into the trusted non-3 GPP access network, is carried out the EPS access authentication to the HSS/AAA request; After HSS/AAA receives the request of EPS access authentication, the UE of the request of sending is authenticated; After HSS/AAA finishes authentication to UE, close to send to the trusted non-3 GPP access network and return P-GW and the signatory APN of UE that in 3GPP inserts, selects, comprise acquiescence APN;
Step 1105, after authentication success, the attachment flow of layer 3 is triggered, and the message that UE sends to the trusted IAD is carried needs migration or/and need the stream information of deletion;
Step 1106 is carried out gateway control session between trusted non-3 GPP access network pass and the PCRF and is set up process;
Step 1107, the trusted non-3 GPP access network closes to P-GW and sends " agent binding update " request message, wherein, should carry NAI, APN in " agent binding update " request message;
Step 1108 is carried out IP-CAN session modification process between P-GW and the PCRF;
Step 1109, P-GW closes to the trusted non-3 GPP access network and returns " agent binding affirmation " message, and wherein, being somebody's turn to do and carrying P-GW in " agent binding affirmation " message is the UE IP address allocated;
Step 1110, PCRF and trusted non-3 GPP access network close mutual, carry out the gateway control session modification process, trusted non-3 GPP access network pass is carried stream information with step 1105 and is sent to PCRF, and PCRF closes to the trusted non-3 GPP access network QoS rule that step 1105 is carried needs to move the stream information correspondence is provided;
Step 1111, the trusted non-3 GPP access network closes to UE echo reply message, and wherein, this response message carries the IP address of UE.The trusted non-3 GPP access network closes QoS rule or the local policy that returns according to PCRF, needs the corresponding dedicated bearing of migration stream information to set up flow process;
Step 1112, the qos policy that P-GW returns according to PCRF then sends more new bearer request to S-GW to existing deleting load-bearing Business Stream, upgrades and handles in order to carry out the QoS of 3GPP carrying.
If UE at first is linked into EPS system (core net adopts the PMIPv6 agreement) by the 3GPP Access Network, when trusted non-3 GPP access network (core net adopts PMIPv6 agreement or DSMIPv6) is moved to some Business Stream in its decision from the 3GPP Access Network after, the flow process and Figure 10 flow process that connect foundation in the trusted non-3 GPP access network are similar, no longer are repeated in this description at this.
Carry out PDN for 3GPP and the non-3GPP of trusted and be connected situation about setting up, flow process only needs to be connected the request of foundation with asking to be replaced with PDN adhering to of Fig. 9, Figure 10 and Figure 11, stream need be moved or/and need the deletion stream information in PDN connection foundation request, to carry, very similar to the embodiment that above-mentioned default bearing is set up, can not impact setting forth the present invention, therefore, so no longer be repeated in this description at this.
For above-described embodiment, UE informs that P-GW Business Stream information can pass through PCO (protocol configuration option, Protocol configuration options) and carry in message; UE informs that S-GW or P-GW Business Stream information can be service template stream TFT information, also can be packet filtering device sign, also can be qos parameter; Simultaneously, Business Stream information can comprise one or more professional stream informations.
In the stream migration process, when having the Business Stream that needs deletion, UE informs the Business Stream information that the Business Stream information of network gateway comprises to be needed the Business Stream information of setting up at objective network (this Business Stream migrates to objective network from source network) or need to delete at source network, and objective network or source network gateway carry out deletion action to the corresponding source network resource of these streams.If the stream information that needs to set up is to move to objective network from source network, then the corresponding resource of source network should be deleted, and therefore, the described stream information that needs to set up can not be included in the stream information that needs deletion.
In addition, UE informs that the Business Stream information of network gateway can comprise flow operation information, as migration stream, deletion stream, increase stream etc.;
Be the scene (being embodiment seven to embodiment nine) of Business Stream information for the above resource control information, Business Stream information represent the resource information that UE informs network side to be needed to set up at objective network (as, Business Stream) or/and need the deletion source network resource information (as, Business Stream), therefore, be necessary to allow and these resources network element as can be known judged in source network and the objective network and handled, and these processing net element are different because of the diversity that adopts agreement.This patent has been described two kinds of solutions:
Method one, if adopt not PCC framework with BBERF (as, adopt the GTP agreement between S-GW and the P-GW), then this processing net element is the network entity (being P-GW) at PCEF place, if the PCC framework of employing band BBERF (as, adopt the PMIP agreement between S-GW and the P-GW), then this processing net element is the network entity (being that S-GW or non-3 GPP access network close) at BBERF place.Comprehensive, have following characteristics:
1, adopt not with the PCC framework of BBERF when objective network, then the Business Stream informational needs brings P-GW, by its mutual with PCRF, the control of realization resource;
A) for the foundation of resource, PCRF carries out the foundation of resource with corresponding QOS strategy notification target network P-GW by the P-GW judgement;
B) for the deletion of resource, when source network adopted the PCC framework of band BBERF, the corresponding QOS strategy of PCRF meeting notification source network B BERF place network element judged whether to delete corresponding resource by this network element; When source network adopted not PCC framework with BBERF, PCRF can the corresponding QOS strategy of notification source network PCEF place network element, judges whether to delete corresponding resource by this network element.
2, adopt the PCC framework of band BBERF when objective network, then the Business Stream informational needs brings S-GW or non-3 GPP access network closes, by its mutual with PCRF, the control of realization resource;
A) for the foundation of resource, PCRF closes corresponding QOS strategy notification target network S-GW or non-3 GPP access network, closes judgement by S-GW or non-3 GPP access network and carries out the foundation of resource;
B) for the deletion of resource, when source network adopted the PCC framework of band BBERF, the corresponding QOS strategy of PCRF meeting notification source network B BERF place network element judged whether to delete corresponding resource by this network element; When source network adopted not PCC framework with BBERF, PCRF can the corresponding QOS strategy of notification source network PCEF place network element, judges whether to delete corresponding resource by this network element.
Method two, when objective network adopts not with the PCC framework of BBERF, then the Business Stream informational needs brings the network entity at Common Gateway (as P-GW) and PCEF place, and the processing net element of resource foundation is the network entity at PCEF place; If adopt the PCC framework of band BBERF, then the Business Stream informational needs brings the network entity at Common Gateway (as P-GW) and BBERF place, and the processing net element that resource is set up is the network entity at BBERF place.But for the deletion of resource, processing net element is Common Gateway (as P-GW).
Certainly, for adopting Business Stream information to explain the situation of resource control information, can also be from summarizing the present invention with lower angle:
To be described UE set up or PDN connects and sets up or dedicated bearing sends the gateway of objective network when setting up at default bearing described resource control information, and described resource control information comprises the stream information that needs to set up and/or need deletion; The control operation of described Internet resources is performed such: described objective network gateway is initiated the foundation operation of respective carrier according to the corresponding qos policy of described resource control information; Described source network gateway discharges the source network resource of described stream information correspondence.
Described resource control information is that described UE sends objective network gateway and Common Gateway to when default bearing foundation, PDN connection foundation or dedicated bearing are set up, described Common Gateway refers to grouped data network gateway P-GW, and described resource control information comprises the stream information that needs to set up and/or need deletion; The control operation of described Internet resources is performed such: described objective network gateway is initiated the foundation operation of respective carrier according to qos policy; Described P-GW discharges the source network resource of this stream information correspondence.
Here said source network or objective network gateway refer to the gateway at bearing binding and event reporting function BBERF or strategy and charge execution function PCEF place, and namely S-GW or non-3 GPP access network close.
More than said QoS policy obtain by "Policy and Charging Rules Function PCRF, also can be static configuration.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
The method of during service flow transfer of the present invention Internet resources being controlled, when service flow transfer, the network gateway that the Internet resources of source network and objective network is had knowability obtains resource control information, and according to this resource control information Internet resources are carried out control operation, thereby saved the service flow transfer process effectively, improve network operation efficient, strengthened the controllability to Internet resources effectively.
Claims (11)
1. the method for Internet resources being controlled during a service flow transfer, it is characterized in that: in the service flow transfer process, user terminal UE sends resource control information the gateway of objective network to, and the gateway of source network or objective network carries out control operation according to described resource control information or corresponding QoS policy to place network of network resource; Wherein, described resource control information is that resource discharges the stream information that deletion maybe need be set up and/or be needed to indication;
Wherein, described resource control information is set up in the process of default bearing at 3GPP, sent under the situation of grouped data network gateway P-GW through network element by user terminal UE, described P-GW obtains described resource in the following manner and discharges indication: when the 3GPP default bearing was set up, UE carried described resource to adhering to of node eNB transmission and discharges indication in the request; Described resource discharge indication successively by described eNB to the default bearing request of setting up that request, described MME send to gateway S-GW of adhering to of sending of mobile management unit MME and the default bearing request of setting up from described S-GW to described P-GW transmission or act on behalf of the bandage updating message and be uploaded to described P-GW.
2. the method for claim 1, it is characterized in that: the gateway of described objective network is the P-GW that source network and objective network share, described resource control information is that described resource discharges when indicating, and described P-GW discharges indication according to described resource whether the Internet resources of source network are deleted the judgement of source network resource and carried out releasing operation.
3. method as claimed in claim 2, it is characterized in that: described resource control information is to set up that default bearing, 3GPP revise that bearing resource, the non-3GPP of trusted connect, trustless non-3GPP connects or 3GPP sets up in the process that PDN connects at 3GPP, transmits described P-GW's by UE through network element.
4. method as claimed in claim 3, it is characterized in that: the process that described 3GPP revises bearing resource is to set up the process of dedicated bearing, described P-GW obtains described resource release indication: UE to carry described resource release indication like this in the bearing resource modification request of mobile management unit MME transmission, and described resource release indicates the bearing resource modification request that sends to S-GW by described MME successively, described S-GW to ask or act on behalf of the bandage updating message to be uploaded to described P-GW to the bearing resource modification of described P-GW.
5. method as claimed in claim 4 is characterized in that: need set up when stream migration under the situation of a plurality of dedicated bearings, described resource discharges that indication carries when in the end a dedicated bearing is set up.
6. method as claimed in claim 2 is characterized in that: described resource discharges indication and utilizes protocol configuration option PCO to carry, and comprises that network coverage sign, handoff scenario sign, deletion action sign maybe need discharge the network identity of resource.
7. the method for claim 1 is characterized in that: to be described UE set up or PDN connects and sets up or dedicated bearing sends the gateway of objective network when setting up at default bearing described resource control information; Described resource control information comprises that the control operation of described Internet resources is performed such when needing foundation and/or needing the stream information of deletion: described objective network gateway is initiated the foundation operation of respective carrier according to the corresponding qos policy of described resource control information; Described source network gateway discharges the source network resource of described stream information correspondence.
8. the method for claim 1, it is characterized in that: described resource control information is that described UE sends objective network gateway and Common Gateway to when default bearing foundation, PDN connection foundation or dedicated bearing are set up, and described Common Gateway refers to grouped data network gateway P-GW; Described resource control information comprises that the control operation of described Internet resources is performed such when needing to set up the stream information that maybe need delete: described objective network gateway is initiated the foundation operation of respective carrier according to qos policy; Described P-GW discharges the source network resource of this stream information correspondence.
9. as claim 7 or 8 described methods, it is characterized in that: described QoS policy be obtain by "Policy and Charging Rules Function PCRF or static configuration.
10. as claim 7 or 8 described methods, it is characterized in that: described source network or objective network gateway refer to the gateway at bearing binding and event reporting function BBERF or strategy and charge execution function PCEF place.
11. as claim 7 or 8 described methods, it is characterized in that: described Business Stream information is service template stream TFT information, packet filtering device sign or the qos parameter that utilizes protocol configuration option PCO to carry.
Priority Applications (2)
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| CN200910003099.XA CN101730150B (en) | 2009-01-19 | 2009-01-19 | Method for controlling network resources during service flow transfer |
| PCT/CN2009/073638 WO2010081329A1 (en) | 2009-01-19 | 2009-08-31 | Method and system for controlling network resources during service flow migrating procedure |
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| CN200910003099.XA CN101730150B (en) | 2009-01-19 | 2009-01-19 | Method for controlling network resources during service flow transfer |
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| CN103379569A (en) * | 2012-04-17 | 2013-10-30 | 中兴通讯股份有限公司 | Trigger method and trigger apparatus of flow migration |
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| CN103458468B (en) * | 2012-05-31 | 2016-12-14 | 华为终端有限公司 | A kind of method and apparatus of bearing resource amendment |
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| WO2015066894A1 (en) * | 2013-11-08 | 2015-05-14 | 华为技术有限公司 | Forwarding plane migration method, controller, and gateway |
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| CN105379402B (en) * | 2014-04-21 | 2019-06-11 | 华为技术有限公司 | Bear control method and system |
| CN105897375A (en) * | 2015-01-26 | 2016-08-24 | 中兴通讯股份有限公司 | Service migration method and device |
| CN106162758B (en) * | 2015-03-23 | 2020-01-10 | 华为技术有限公司 | Service processing method, PCRF (policy and charging rules function) and service processing system |
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