CN102378267A

CN102378267A - Method and system for realizing resource control in fixed network and mobile network blending situation

Info

Publication number: CN102378267A
Application number: CN2010102516172A
Authority: CN
Inventors: 蒋陶; 毕以峰; 霍玉臻
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-08-09
Filing date: 2010-08-09
Publication date: 2012-03-14
Anticipated expiration: 2030-08-09
Also published as: CN102378267B; WO2012019506A1

Abstract

The invention discloses a method and system for realizing resource control in a fixed network and mobile network blending situation. A universal packet radio tunnel protocol interface can be respectively established between a packet data network gateway and a fixed network; and policy information is interacted between a policy and charging rules function (PCRF) and the fixed network via the packet data network gateway and the universal packet radio tunnel protocol interface. By the method and the system of the invention, the usage of the existing interface S9* can be avoided; the influences on a self-processing mechanism and external interaction characteristics of the PCRF can be obviously reduced; the reinforcement of the PCRF is not needed any more, so that the influence on an evolved packet system (EPS) is evidently reduced; furthermore, due to the new interface relationship and the communication information interaction manner, the resource control and management can be effectively realized; and the purpose of improving the current situation of the resource control and management is achieved.

Description

Merge the method and system of realizing resource control under the scene the fixed network mobile network

Technical field

The present invention relates to the communications field, be specifically related to merge the method and system of realizing resource control under the scene the fixed network mobile network.

Background technology

Third generation partner program (3rd Generation Partnership Project; 3GPP) the grouping system of evolution (Evolved Packet System; EPS) by UMTS land radio access web (the Evolved Universal Terrestrial Radio Access Network of evolution; E-UTRAN), mobile management unit (Mobility Management Entity; MME), gateway (Serving Gateway; S-GW), grouped data network gateway (Packet Data Network Gateway, P-GW or PDN GW), home subscriber server (Home Subscriber Server, HSS), 3GPP aaa server (3GPP authentication and authorization charging server); "Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF) form by entity and other support nodes.See Fig. 1 and Fig. 2 top square frame part.Wherein MME is responsible for the processing of mobile management, Non-Access Stratum signaling, user's chain of command related works such as the contextual management of mobile management; S-GW is the accessing gateway equipment that links to each other with E-UTRAN, between E-UTRAN and P-GW, transmits data, and is responsible for pending datas such as paging are carried out buffer memory.P-GW then is the grouping system (EPS, Evolved Packet System) of 3GPP evolution and the borde gateway of PDN (Packet Data Network) network, is responsible for the access of PDN, between EPS and PDN, transmits function such as data.When terminal (UE) inserts through E-UTRAN, both can adopt general packet wireless service tunnel protocol (GTP) between S-GW and the P-GW, also can adopt the PMIPv6 agreement.

Dotted line bottom illustrated in figures 1 and 2 is that the fixed network of fixed network mobile network fusion architecture inserts part.The fixed network part mainly comprises network element RG (Routing Gateway, routing gateway), AN (Access Network, Access Network); BNG (Broadband Network Gateway; Wideband network gateway)/BRAS (Broadband Remote Access Server, Broadband Remote Access Server), and BBF AAA (Broadband Forum AAA; The AAA of broadband forum), broadband forum policy control functions (Broadband Forum Policy Control Function, BPCF) etc.Said AN comprises DSLAM (Digital Subscriber Line Access Multiplexer, DSLAM), ONT network elements such as (Optical Network Terminal, ONT Optical Network Terminals).

EPS can realize the intercommunication with non-3GPP network, and promptly UE also can be linked into EPS through non-3 GPP access network, and P-GW is as the anchor point between 3GPP Access Network and non-3 GPP access network.Non-3 GPP system can be divided into the non-3GPP IP access of trusted again and trustless non-3GPP IP inserts.Wherein fixed network can be used as the non-3GPP access of a kind of trusted direct (like Fig. 2), perhaps (Interworking gateway among the present invention is called X-MAG through Interworking gateway; When practical application; Interworking gateway can define different titles; Do not influence this essence of an invention) the indirect P-GW that is linked into the EPS system through the S2a interface (like Fig. 1), the S2a interface adopts the PMIPv6 agreement.

If fixed network is directly to insert, the wideband network gateway/Broadband Remote Access Server of fixed network (BNG/BRAS) need be connected through the S2a interface with P-GW; After the user inserted, user data to X-MAG, arrived the P-GW of EPS core net via BNG/BRAS again, arrives outside PDN (for example: Internet or operator's enterprise network etc.) at last;

If insert indirectly, connect through the S2a interface between Interworking gateway X-MAG and the P-GW.After the user inserted, user data was through fixed network, X-MAG network element, arrived outside PDN (for example: Internet or operator's enterprise network etc.) via the P-GW of EPS core net.

X-MAG, BNG/BRAS, BBF AAA, and 3GPP HSS/AAA is to user's access realization authentication and authorization.BNG/BRAS, BPCF, 3GPP PCRF manage and control the fixed network resource.

In fixed network; Each interface is described for ease; Can be with two end points network elements of each interface name as each interface; For example: the interface between BNG/BRAS and the BBF AAA is called: (BNG/BRAS-BBF AAA) interface, the interface between BNG/BRAS and the BPCF is called: (BNG/BRAS-BPCF) interface, the rest may be inferred.

Strategy and charge execution function (PCEF, Policy And Charging Enforcement Function) are present in P-GW in the EPS system, and PCRF and P-GW are through Gx interface exchange message.When the interface between S-GW and P-GW during based on PMIPv6, resident bearing binding and event reporting function (BBERF, Bearer Binding and Event Reporting Function) among the S-GW, between S-GW and the PCRF through Gxc interface exchange message.The strategy of fixed network is generated strategy through BPCF with the control of chargeing, and is specifically carried out by BNG/BRAS.Current EPS network and fixed network merge, and need the unified management of implementation strategy and charging.Concrete realization is; Interface-PCRF-BPCF interface (also claiming the S9* interface) is set between BPCF and the PCRF; Policy development and control point are unified in PCRF, and BPCF passes through PCRF-BPCF interface/S9* interface acquisition strategy from PCRF, and the fusion local policy sends to the BNG/BRAS execution.Equally, BNG/BRAS and BPCF also can report PCRF to local event (for example, resource behaviour in service etc.).

The S9* interface is for the newly-increased interface of fixed network mobile network integration technology, the introducing of this interface be because: if this interface not, BPCF can't obtain the PCC strategy from PCRF; In other words, PCRF can't realize control to the resource of fixed network.But introduce after this interface, certainly will cause influence, need PCRF to strengthen self treatment mechanism and the outside interaction feature of PCRF.That is to say, realize fixed network mobile network fusion, the EPS system has been caused influence, need system to strengthen.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of and merges the method and system of realizing resource control under the scene the fixed network mobile network, to reduce the influence to the EPS system, improves resource control and management status.

For achieving the above object, technical scheme of the present invention is achieved in that

A kind of fusion the fixed network mobile network realized the method that resource is controlled under the scene, this method comprises:

Between P-GW and fixed network, set up the GTP interface; PCRF is via P-GW and said GTP interface, with fixed network interactive strategy information.

Said policy information comprises related service quality information and/or the event information that relates to communication;

Be provided with direct-connected BNG/BRAS in the said fixed network with the mobile network; This BNG/BRAS links to each other through the fixed network policy interface with BPCF entity in the fixed network;

Perhaps, be provided with the BNG/BRAS that is connected indirectly with the mobile network in the said fixed network; The mobile network is connected to Interworking gateway through the GTP interface, and Interworking gateway links to each other through the intercommunication policy interface with BPCF, and BNG/BRAS links to each other through the fixed network policy interface with BPCF entity in the fixed network.

When being provided with the direct-connected BNG/BRAS of mobile network in the said fixed network, the process of said interactive strategy information comprises:

PCRF issues said corresponding strategies to fixed network; The bang path of this corresponding strategies is: PCRF transmits to P-GW through the IP-CAN session of Gx interface; P-GW transmits to BNG/BRAS through the GTP agreement, and BNG/BRAS consults alternately through said fixed network policy interface and BPCF and carried out by BPCF or BNG/BRAS;

When being provided with the BNG/BRAS that is connected indirectly with the mobile network in the said fixed network, the process of said interactive strategy information comprises:

PCRF issues said corresponding strategies to fixed network; The bang path of this corresponding strategies is: PCRF transmits to P-GW through the IP-CAN session of Gx interface; P-GW passes through the GTP agreement to said Interworking gateway transmission; Said Interworking gateway transmits to BPCF through said intercommunication policy interface, and BPCF consults alternately through said fixed network policy interface and BNG/BRAS and carried out by BPCF or BNG/BRAS.

When being provided with the direct-connected BNG/BRAS of mobile network in the said fixed network, the process of said interactive strategy information further comprises:

Fixed network reports said corresponding strategies to PCRF; The bang path of this corresponding strategies is: BNG/BRAS is through said fixed network policy interface and the mutual consulting tactical of BPCF; BNG/BRAS transmits to P-GW through the GTP agreement, and P-GW transmits to PCRF through the IP-CAN session of Gx interface;

When said fixed network was connected with the mobile network through said Interworking gateway, the process of said interactive strategy information comprised:

Fixed network reports said corresponding strategies to PCRF; The bang path of this corresponding strategies is: BNG/BRAS is through said fixed network policy interface and the mutual consulting tactical of BPCF; BPCF through said intercommunication policy interface to said Interworking gateway transmission; Said Interworking gateway transmits to P-GW through the GTP agreement, and P-GW transmits to PCRF through the IP-CAN session of Gx interface.

When being provided with the direct-connected BNG/BRAS of mobile network in the said fixed network, the process that said fixed network policy interface, GTP interface are set up session and transmission policy comprises:

Between BNG/BRAS and BPCF, set up the session of fixed network policy interface to transmit corresponding strategies;

Between BNG/BRAS and P-GW, adopt the GTP agreement to set up binding relationship to transmit corresponding strategies;

When being provided with the BNG/BRAS that is connected indirectly with the mobile network in the fixed network, the process that said fixed network policy interface, intercommunication policy interface, GTP interface are set up session and transmission policy comprises:

Between Interworking gateway and BPCF, set up the session of intercommunication policy interface to transmit corresponding strategies;

Between BNG/BRAS and P-GW, adopt the GTP agreement to set up binding relationship to transmit corresponding strategies.

A kind of fusion the fixed network mobile network realized the system that resource is controlled under the scene, this system comprises P-GW, the PCRF that is positioned at the mobile network, also comprises fixed network; Between said P-GW and fixed network, establish the GTP interface;

Said PCRF is used for via P-GW and said GTP interface, with fixed network interactive strategy information.

Be provided with the BNG/BRAS that directly is connected or connects indirectly with the mobile network in the said fixed network; This BNG/BRAS links to each other with BPCF in the fixed network;

When being provided with the direct-connected BNG/BRAS of mobile network in the said fixed network, said PCRF is used for during mutual said policy information:

Issue said corresponding strategies to fixed network; The bang path of this corresponding strategies is: PCRF transmits to P-GW through the IP-CAN session of Gx interface; P-GW transmits to BNG/BRAS through the GTP agreement, and BNG/BRAS consults alternately through fixed network policy interface and BPCF and carried out by BPCF or BNG/BRAS;

When being provided with the BNG/BRAS that is connected indirectly with the mobile network in the said fixed network, said PCRF is used for during mutual said policy information:

Issue said corresponding strategies to fixed network; The bang path of this corresponding strategies is: PCRF transmits to P-GW through the IP-CAN session of Gx interface; P-GW passes through the GTP agreement to the Interworking gateway transmission; Interworking gateway transmits to BPCF through the intercommunication policy interface, and BPCF carries out and maybe sends the content of receiving to BNG/BRAS so that carry out.

When being provided with in the said fixed network, during the mutual said policy information of said PCRF, be further used for the direct-connected BNG/BRAS of mobile network:

Receive the said corresponding strategies that fixed network reports; The bang path of this corresponding strategies is: BNG/BRAS is through fixed network policy interface and the mutual consulting tactical of BPCF; BNG/BRAS transmits to P-GW through the GTP agreement, and P-GW transmits to PCRF through the IP-CAN session of Gx interface;

When said fixed network is connected with the mobile network through Interworking gateway, during the mutual said policy information of said PCRF, be further used for:

Receive the said corresponding strategies that fixed network reports; The bang path of this corresponding strategies is: BNG/BRAS is through said fixed network policy interface and the mutual consulting tactical of BPCF; BPCF through said intercommunication policy interface to said Interworking gateway transmission; Said Interworking gateway transmits to P-GW through the GTP agreement, and P-GW transmits to PCRF through the IP-CAN session of Gx interface.

When being provided with the direct-connected BNG/BRAS of mobile network in the said fixed network, said fixed network policy interface, GTP interface are used for when setting up session and transmission policy:

When being provided with through Interworking gateway with BNG/BRAS that the mobile network is connected indirectly in the said fixed network, said fixed network policy interface, intercommunication policy interface, GTP interface are used for when setting up session and transmission policy:

The inventive method and system; Can avoid use to present S9* interface; Can obviously reduce the influence that self treatment mechanism and outside interaction feature to "Policy and Charging Rules Function cause; No longer need "Policy and Charging Rules Function to strengthen, thereby obviously reduced influence the grouping system of evolution.And aforesaid new interface relationship and communication information interactive mode can effectively realize resource control and management, have reached the purpose of improving resource control and management status.

Description of drawings

Fig. 1 is a kind of fixed network mobile network fusion cage composition of prior art;

Fig. 2 is the another kind of fixed network mobile network fusion cage composition of prior art;

Fig. 3 is the fixed network mobile network fusion cage composition of one embodiment of the invention;

Fig. 4 is the fixed network mobile network fusion cage composition of another embodiment of the present invention;

The attachment flow figure that Fig. 5 realizes for framework shown in Figure 3;

Flow chart is set up in the carrying that the network that Fig. 6 realizes for framework shown in Figure 3 is initiated;

The deleting load-bearing flow chart that the fixed network that Fig. 7 realizes for framework shown in Figure 3 is initiated;

The attachment removal that initiate at the terminal that Fig. 8 realizes for framework shown in Figure 3/PDN connects release flow figure;

The bearing resource modification process figure that initiate at the terminal that Fig. 9 realizes for framework shown in Figure 3;

The attachment flow figure that Figure 10 realizes for framework shown in Figure 4;

Flow chart is set up in the carrying that the network that Figure 11 realizes for framework shown in Figure 4 is initiated;

The deleting load-bearing flow chart that the fixed network that Figure 12 realizes for framework shown in Figure 4 is initiated;

The attachment removal that initiate at the terminal that Figure 13 realizes for framework shown in Figure 4/PDN connects release flow figure;

The bearing resource modification process figure that initiate at the terminal that Figure 14 realizes for framework shown in Figure 4;

Figure 15 merges the general flow chart of realizing resource control under the scene for the present invention the fixed network mobile network.

Embodiment

In general, need between P-GW and fixed network, adopt the GTP interface, and the interface based on the PMIPv6 agreement that is adopted before no longer using.And, because the interface variation between P-GW and the fixed network no longer needing to cause the direct interface between PCRF and the BPCF; Make that finally PCRF can be via P-GW and said GTP interface, comprise alternately with fixed network relating to the corresponding strategies information of communicating by letter.

Based on above-mentioned thinking, on the one hand, can be as shown in Figure 3, between Interworking gateway X-MAG and P-GW, adopt the GTP agreement to set up binding relationship to transmit corresponding strategies and information; And between Interworking gateway X-MAG and BPCF through the intercommunication policy interface to transmit corresponding strategies and information.

In view of this, PCRF can issue corresponding strategies and information to the fixed network system, and the path is: PCRF->P-GW->X-MAG->fixed network.Wherein, PCRF transmits to P-GW through the IP-CAN session of Gx interface, and P-GW transmits to X-MAG through the GTP agreement, X-MAG through the intercommunication policy interface to the fixed network transmission.The functional entity that fixed network receives corresponding strategies and information can be BPCF, and BPCF and BNG/BRAS consulting tactical information are also carried out by BPCF and/or BNG/BRAS.

In like manner, fixed network can report corresponding strategies and information to PCRF; The path is: fixed network-X-MAG->P-GW->PCRF.Wherein, the corresponding function entity in the fixed network is collected corresponding strategies and information and is transmitted to X-MAG through the intercommunication policy interface; X-MAG transmits to P-GW through the GTP agreement, and P-GW transmits to PCRF through the IP-CAN session of Gx interface.The functional entity that fixed network is collected corresponding strategies and information can be BNG/BRAS and/or BPCF.

On the other hand, also can be as shown in Figure 4, between BNG/BRAS and P-GW, adopt the GTP agreement to set up binding relationship to transmit corresponding strategies and information; And between BNG/BRAS and BPCF, set up the fixed network policy interface to transmit corresponding strategies and information.

In view of this, PCRF can issue corresponding strategies and information to the fixed network system, and the path is: PCRF->P-GW->BNG/BRAS <-BPCF.Wherein, PCRF transmits to P-GW through the IP-CAN session of Gx interface, and P-GW transmits to BNG/>BRAS through the GTP agreement, and BNG/BRAS consults alternately through fixed network policy interface and BPCF and carried out by BNG/BRAS.

In like manner, fixed network can report corresponding strategies and information to PCRF; The path is: BPCF <-BNG/BRAS->P-GW->PCRF.Wherein, BNG/BRAS is through fixed network policy interface and the mutual consulting tactical of BPCF, and BNG/BRAS transmits to P-GW through the GTP agreement, and P-GW transmits to PCRF through the IP-CAN session of Gx interface.

Need to prove, when being provided with in the fixed network and when setting up said GTP interface, be used for the direct-connected BNG/BRAS of mobile network:

P-GW can adopt the GTP agreement to set up binding relationship to transmit corresponding strategies between BNG/BRAS and P-GW; BPCF then can set up the fixed network policy interface to transmit corresponding strategies between BNG/BRAS and BPCF.

Have again, when being provided with through X-MAG in the fixed network and when setting up said GTP interface, be used for BNG/BRAS that the mobile network is connected indirectly:

P-GW can adopt the GTP agreement to set up binding relationship to transmit corresponding strategies between X-MAG and P-GW; BPCF then can set up the intercommunication policy interface to transmit corresponding strategies between X-MAG and BPCF.

Below, be example with Fig. 5 to Figure 14, the aforesaid operations thinking is described in detail.

Referring to Fig. 5; The attachment flow figure that Fig. 5 realizes for framework shown in Figure 3; Described the terminal and adhered to/add PDN connection building process figure, fixed network as the non-3GPP access of the trusted of EPS network, various scenes such as wherein this flow chart has comprised roaming, and is non-roaming through what fixed network inserted EPS.

In general, set up the fixed network strategy session between BNG/BRAS and the BPCF, set up the intercommunication strategy session between X-MAG and the BPCF, after fixed network strategy session and intercommunication strategy session are set up, be used for downloading unified PCC strategy and reporting the fixed network incident to PCRF from PCRF.

The detailed step of Fig. 5 is described below:

Step 501:UE according to the fixed network authentication mode through authentication.

Step 502:UE sets up local the connection with fixed network, and obtains the local ip address of fixed network for its distribution.

Step 503: receive the local triggering that connects establishment step and/or authentication step, BNG/BRAS initiates the fixed network strategy session to BPCF and sets up request.Through this step, BNG/BRAS and BPCF set up and apply for/issue the session of dynamic strategy, so that Resource Allocation in Networks and user admission are realized accurately control.

Step 504:UE sends three layers of negotiation request message to X-MAG and inserts with request, in this signaling, carries parameters such as UE mobile network ID, APN.

Step 505: user's access to mobile network authentication.Employing is accomplished the access authentication to the user based on the authentication mode (as: EAP-AKA) of 3GPP.

Step 506:X-MAG initiates the intercommunication strategy session to BPCF and sets up request, sets up the intercommunication strategy session between X-MAG and the BPCF.

Step 507:X-MAG receives three layers of agreement request that UE sends trigger after, send the establishment conversation request message of GTP agreement and give P-GW, the tunnel binding of request and P-GW.

Step 508:P-GW is UE distributing IP address after receiving and creating conversation request message.P-GW and PCRF set up the IP-CAN session.

Step 509:P-GW is right to 3GPP HSS/AAA transmission APN/P-GW sign, and the sign of this P-GW of request HSS/AAA storage realizes the P-GW identification renewal.

Step 510:P-GW respond to create session response message to the X-MAG network element, and in this message, has carried and be the UE IP address allocated.

Step 511:X-MAG network element and UE accomplish three layers of negotiation, and the IP address of UE is sent to UE, perhaps send to UE through other message.

So far, the user is linked into mobile network EPS through fixed network, can carry out data service then.

After UE was linked into EPS, the PDN that has created an acquiescence connected; UE can also set up additional (Additional) PDN and connect.Through repeating step 504, step 506 to the step 511 in the flow chart, make UE carry different APN and give the EPS core net, can set up additional PDN and connect, and additional PDN connection is not limit one.When additional PDN connection was set up, except that the step 506, other step can be carried out according to foregoing description.Step 506 can have two kinds of methods of operation:

(I) X-MAG receives the triggering of step 504, initiates the intercommunication strategy session to BPCF and sets up request, sets up second the intercommunication strategy session that belongs to UE with BPCF.Need to prove that when UE adhered to, setting up the intercommunication strategy session that acquiescence PDN connects was first intercommunication strategy session, if follow-up also have additional PDN to connect to set up, also can set up the 3rd, a fourth class number intercommunication strategy session.

(II) X-MAG receives the message of step 504, has set up an intercommunication strategy session when detecting UE and adhering to, and X-MAG sends the intercommunication strategy session to BPCF and upgrades operation, multiplexing this session.

More than two kinds of schemes all feasible.If adopt (I) scheme, then fixed network strategy session and intercommunication strategy session are the relations of one-to-many; If adopt (II) scheme, then fixed network strategy session and intercommunication strategy session are man-to-man relations.

No matter adopt above-mentioned which kind of scheme; The fixed network strategy session of BPCF is (being respectively BNG/BRAS and X-MAG) of initiating foundation by two different network elements with the intercommunication strategy session, so BPCF needs to belong to two session associations of same UE or same PDN connection.Correlating method can adopt any in the following scheme:

(I) set up local the connection and step 503 when setting up the fixed network strategy session in step 502, UE has sent to BPCF with the mobile network information of self; When step 506 was set up the intercommunication strategy session, X-MAG had sent to BPCF with the mobile network information of UE.BPCF carries out association according to mobile network information to two types of sessions;

Wherein, mobile network information can comprise: the fixed network ID (as: IMSI/NAI) of UE, APN or other information.

(II) set up in the operation in the three layers of negotiation request message of step 504 and the intercommunication strategy session of step 506; UE has sent to BPCF with the fixed network information of self; When step 503 was set up the fixed network strategy session, BNG/BRAS had sent to BPCF with the fixed network information of UE.BPCF carries out association according to fixed network information to two types of sessions.

Wherein, fixed network information can comprise: the fixed network ID (as: user name) of UE, fixed network IP address or other information.

Referring to Fig. 6; Flow chart is set up in the carrying that the network that Fig. 6 realizes for framework shown in Figure 3 is initiated; Various scenes such as flow chart, the fixed network of having described network side initiation carrying foundation/modification insert as the non-3GPP of the trusted of EPS network, and wherein this flow chart has comprised roaming, and is non-roaming.

In general, UE has been linked into EPS through attachment flow, and the intercommunication strategy session between fixed network strategy session, X-MAG and the BPCF between BNG/BRAS and the BPCF has all been set up and be correct related.

What Fig. 6 described is: PCRF has issued relevant PCC strategy and has given P-GW, and P-GW sends to X-MAG through the control signaling of GTP agreement, and X-MAG sends to fixed network BPCF to strategy through the intercommunication strategy session then.After BPCF receives strategy, comprehensive fixed network self strategy, and notify and carry out to BNG/BRAS, execution result feeds back to PCRF at last.

The detailed step of Fig. 6 is described below:

Step 601:PCRF initiates the operation of IP-CAN session modification, and operates relevant PCC policy distribution to P-GW through this.

Step 602:P-GW sends the load creating/update inquiry information of GTP agreement to X-MAG, and has carried relevant PCC strategy.

Step 603:X-MAG and the configuration of UE negotiating resources.

This step is an optional step, if that is: network side has corresponding TFT to be handed down to UE, then sends to UE through this step; If need not transmit information such as TFT, then this step can be skipped.

The strategy that step 604:X-MAG will be sent by the GTP signaling from P-GW sends to BPCF through the intercommunication strategy session.

Step 605:BPCF will be the fixed network strategy from the policy mappings that X-MAG obtains, and send to BNG/BRAS and/or other fixed network strategy execution network elements through the fixed network strategy session according to local policy.

BNG/BRAS and/or other fixed network strategy execution network elements are carried out the strategy of receiving, configuration fixed network resource.And the result fed back to BPCF through the fixed network strategy session.

Step 606:BPCF sends intercommunication strategy session response signaling to X-MAG, and notice X-MAG fixed network strategy execution is accomplished.

Step 607:X-MAG receives the triggering of 606 steps, sends the load creating/renewal response message of GTP agreement and gives P-GW.

Step 608:P-GW sends IP-CAN session modification response signaling to PCRF, and the PCC strategy execution that notice PCRF issues is accomplished.

Referring to Fig. 7; The deleting load-bearing flow chart that the fixed network that Fig. 7 realizes for framework shown in Figure 3 is initiated; Various scenes such as flow chart, the fixed network of having described network side initiation deleting load-bearing insert as the non-3GPP of the trusted of EPS network, and wherein this flow chart has comprised roaming, and is non-roaming.

What Fig. 7 described is: PCRF has issued relevant PCC strategy (load bearing deactivation) and has triggered P-GW initiation load bearing deactivation to P-GW; Perhaps P-GW is because self reason will be initiated load bearing deactivation; P-GW sends the deleting bearing signaling of GTP agreement and gives X-MAG, and X-MAG sends to fixed network BPCF to strategy through the intercommunication strategy session then.After BPCF receives strategy, comprehensive fixed network self strategy, and notify and carry out to BNG/BRAS, execution result feeds back to PCRF at last.

The detailed step of Fig. 7 is described below:

Step 701:PCRF initiates the operation of IP-CAN session modification, and through this operation with relevant PCC policy distribution to P-GW, such as the bearing identification that needs deexcitation etc.

This step is an optional step.

Step 702:P-GW sends the deleting bearing request message of GTP agreement to X-MAG.

Step 703:X-MAG and the configuration of UE negotiating resources.

This step is an optional step, if that is: network side has corresponding TFT to notify to let UE that it is deleted; If do not need, then this step can be skipped.

Step 704:X-MAG receives the triggering of the deleting bearing request message that P-GW sends, and initiates intercommunication strategy session modify steps, and notice BPCF discharges corresponding resource.

Step 705:BPCF will be the fixed network strategy from the policy mappings that X-MAG obtains, and send to BNG/BRAS and/or other fixed network strategy execution network elements through the fixed network strategy session according to local policy.

BNG/BRAS and/or other fixed network strategy execution network elements are carried out the strategy of receiving, discharge the fixed network resource.And the result fed back to BPCF through the fixed network strategy session.

Step 706:BPCF sends intercommunication strategy session response signaling to X-MAG, and notice X-MAG fixed network strategy execution (resource release) is accomplished.

Step 707:X-MAG receives the triggering of 706 steps, sends the deleting bearing response message of GTP agreement and gives P-GW.

Step 708:P-GW sends IP-CAN session modification response signaling to PCRF, and notice PCRF load bearing deactivation is complete.This step is optional, corresponding step 701.

Referring to Fig. 8; The attachment removal that initiate at the terminal that Fig. 8 realizes for framework shown in Figure 3/PDN connects release flow figure; Described the terminal and connected release flow figure, fixed network as the non-3GPP access of the trusted of EPS network through attachment removal/additional PDN that fixed network inserts EPS; Various scenes such as wherein this flow chart has comprised roaming, and is non-roaming.

In general, set up the fixed network strategy session between BNG/BRAS and the BPCF, set up the intercommunication strategy session between X-MAG and the BPCF, fixed network strategy session and intercommunication strategy session, UE can with outside PDN intercommunication data.

What Fig. 8 described is: HSS/AAA or UE or fixed network itself or X-MAG have initiated PDN and have connected and discharge or the user inserts attachment removal and operates, and the deletion action of the relevant bearer of EPS network, session, context etc.

The detailed step of Fig. 8 is described below:

Step 800:HSS/AAA sends the attachment removal indication to X-MAG, and indication X-MAG initiates attachment removal/PDN and connects release.This is a scene that triggers operation shown in Figure 8;

Step 801:UE sends three layers and consults to stop signaling to X-MAG, initiates attachment removal/PDN and connects release.This is the second scenario that triggers operation shown in Figure 8;

Step 802:X-MAG is because self reason determines to initiate attachment removal/PDN and connects release.This is the 3rd scene that triggers operation shown in Figure 8.

X-MAG sends the deletion conversation request message of GTP agreement and gives P-GW, and request is removed tunnel binding with P-GW.

Step 803:P-GW removes the binding relationship with X-MAG after receiving the deletion conversation request message.P-GW and PCRF stop the IP-CAN session.

Step 804:P-GW responds deletion conversational response message to the X-MAG network element.

Step 805: if there is step 800, then X-MAG can send the attachment removal response signaling to HSS/AAA.

Step 806:X-MAG network element and UE accomplish three layers of negotiation, discharge connection between the two.

Step 807:X-MAG initiates intercommunication strategy session modification/terminating operation to BPCF.

Step 808: the fixed network resource discharges or reshuffles.

Need to prove: above-mentioned steps 807 also can occur in after the step 802, also can occur in after the step 804, also can as shown in the figurely occur in after the step 806.

Referring to Fig. 9; The bearing resource modification process figure that Fig. 9 initiates for the terminal that framework shown in the figure is realized, after having described the terminal and inserting as the non-3GPP of the trusted of EPS network through fixed network, the bearing resource retouching operation that UE initiates; Various scenes such as wherein this flow chart has comprised roaming, and is non-roaming.

The detailed step of Fig. 9 is described below:

Step 901:UE sends three layers of bearing resource to X-MAG and revises request, is used for to EPS core network requests foundation/modification/deleting bearing resource.

Step 902:X-MAG sends the bearing resource instruction message of GTP agreement and gives P-GW, and request resource is revised.

After step 903:P-GW receives the bearing resource instruction message, initiate the operation of IP-CAN session modification to PCRF, request PCRF examines resource modifying, feeds back to P-GW result after PCRF examines.

Load creating/modification/deletion action that step 904:P-GW initiates.The principle of the corresponding operating among this procedure and Fig. 6, Fig. 7 is similar.

Step 905:P-GW accomplishes message informing PCRF resource modifying result through the IP-CAN session modification.

Need to prove: the intercommunication strategy session between X-MAG and the BPCF alternately can be shown in figure, that is: occur in after the GTP message that X-MAG receives that P-GW sends, also can occur in after the message that X-MAG receives step 901.If occur in after the step 901, when fixed network can not provide the UE requested resource, X-MAG can directly refuse this request, need not carry out subsequent step.

Referring to Figure 10; The attachment flow figure that Figure 10 realizes for framework shown in Figure 4; Described the terminal and adhered to/add PDN connection building process figure, fixed network as the non-3GPP access of the trusted of EPS network, various scenes such as wherein this flow chart has comprised roaming, and is non-roaming through what fixed network inserted EPS.

In general; Set up the fixed network strategy session between BNG/BRAS and the BPCF; GTP signaling between this session, BNG/BRAS and the P-GW and the IP-CAN session between P-GW and the PCRF are used for downloading unified PCC strategy and reporting the fixed network incident to PCRF from PCRF.

The detailed step of Figure 10 is described below:

Step 1001:UE according to the 3GPP authentication mode through authentication.

Step 1002:UE initiates to insert request in fixed network.

Step 1003: receive the access request trigger, BNG/BRAS initiates the fixed network strategy session to BPCF and sets up request.Through this step, BNG/BRAS and BPCF set up and apply for/issue the session of dynamic strategy, so that Resource Allocation in Networks and user admission are realized accurately control.

Step 1004: receive the access request trigger, BNG/BRAS sends the establishment conversation request message of GTP agreement and gives P-GW, the tunnel binding of request and P-GW.

Step 1005:P-GW is UE distributing IP address after receiving and creating conversation request message.P-GW and PCRF set up the IP-CAN session.

Step 1006:P-GW is right to 3GPP HSS/AAA transmission APN/P-GW sign, and the sign of this P-GW of request HSS/AAA storage is to realize the P-GW identification renewal.

Step 1007:P-GW respond to create session response message to BNG/BRAS, and in this message, has carried and be the UE IP address allocated.

Step 1008: insert and accomplish.

After UE was linked into EPS, the PDN that has created an acquiescence connected; UE can also set up additional PDN and connect.Through repeating step 1002 to the step 1008 in the flow chart, UE carries different APN and gives the EPS core net, can set up additional PDN and connect, and additional PDN connection is not limit one.When additional PDN connection was set up, except that the step 1003, other step can be carried out according to foregoing description.Step 1003 can have two kinds of methods of operation:

(I) BNG/BRAS receives the triggering of step 1002, initiates the fixed network strategy session to BPCF and sets up request, sets up second the fixed network strategy session that belongs to UE with BPCF.Need to prove that when UE adhered to, setting up the fixed network strategy session that acquiescence PDN connects was first fixed network strategy session, if follow-up also have additional PDN to connect to set up, also can set up the 3rd, a fourth class number fixed network strategy session.

(II) BNG/BRAS receives the message of step 1002, has set up a fixed network strategy session when detecting UE and adhering to, and BNG/BRAS sends the fixed network strategy session to BPCF and upgrades operation, multiplexing this session.

More than two kinds of schemes all feasible.If adopt (I) scheme, then each UE can have a plurality of fixed network strategy sessions; If adopt (II) scheme, then UE has only a fixed network strategy session.

Referring to Figure 11; Flow chart is set up in the carrying that the network that Figure 11 realizes for framework shown in Figure 4 is initiated; Various scenes such as flow chart, the fixed network of having described network side initiation carrying foundation insert as the non-3GPP of the trusted of EPS network, and wherein this flow chart has comprised roaming, and is non-roaming.

In general, UE has been linked into EPS through attachment flow.PCRF has issued relevant PCC strategy and has given P-GW, and P-GW sends to BNG/BRAS through the control signaling of GTP agreement, and BNG/BRAS sends to fixed network BPCF to strategy through the fixed network strategy session then.After BPCF receives strategy, comprehensive fixed network self strategy, and feed back to the BNG/BRAS correlated results, BNG/BRAS carries out the result.

The detailed step of Figure 11 is described below:

Step 1101:PCRF initiates the operation of IP-CAN session modification, and operates relevant PCC policy distribution to P-GW through this.

Step 1102:P-GW sends the load creating/update inquiry information of GTP agreement to BNG/BRAS, and has carried relevant PCC strategy.

Step 1103:BNG/BRAS is through fixed network strategy session and BPCF consulting tactical, and BPCF is to the BNG/BRAS feedback result.

Step 1104:BNG/BRAS initiates the particular step of fixed network to accomplish resource reconfiguration.

Step 1105:BNG/BRAS receives the triggering of the resource reconfiguration completion incident in the step 1104, sends the load creating/renewal response message of GTP agreement and gives P-GW.

Step 1108:P-GW sends IP-CAN session modification response signaling to PCRF, and the PCC strategy execution that notice PCRF issues is accomplished.

Referring to Figure 12, the deleting load-bearing flow chart that fixed network that Figure 12 realizes for framework shown in Figure 4 is initiated has been described the flow chart that network side is initiated deleting load-bearing.Various scenes such as fixed network inserts as the non-3GPP of the trusted of EPS network, and wherein this flow chart has comprised roaming, and is non-roaming.

In general; UE has been linked into EPS through attachment flow, and PCRF has issued relevant PCC strategy (load bearing deactivation) and triggered P-GW initiation load bearing deactivation to P-GW, and perhaps P-GW is because self reason will be initiated load bearing deactivation; P-GW sends the deleting bearing signaling of GTP agreement and gives BNG/BRAS; After BNG/BRAS and BPCF consult, discharge the fixed network resource, resource discharges the result and feeds back to PCRF at last.

The detailed step of Figure 12 is described below:

Step 1201:PCRF initiates the operation of IP-CAN session modification, and through this operation with relevant PCC policy distribution to P-GW, such as the bearing identification that needs deexcitation etc.

This step is an optional step.

Step 1202:P-GW sends the deleting bearing request message of GTP agreement to BNG/BRAS.

Step 1203:BNG/BRAS receives the triggering of the deleting bearing request message that P-GW sends, and initiates fixed network strategy session modify steps, and notice BPCF discharges corresponding resource.

Step 1204:BNG/BRAS initiates resource release operations.

Step 1205:BNG/BRAS receives the triggering of the resource release completion incident in the step 1204, sends the deleting bearing response message of GTP agreement and gives P-GW.

Step 1206:P-GW sends IP-CAN session modification response signaling to PCRF, and notice PCRF load bearing deactivation is complete.This step is optional, corresponding step 1201.

Referring to Figure 13, the attachment removal that initiate at the terminal that Figure 13 realizes for framework shown in Figure 4/PDN connects release flow figure, has described the terminal and has connected release flow figure through attachment removal/additional PDN that fixed network inserts EPS.Various scenes such as fixed network inserts as the non-3GPP of the trusted of EPS network, and wherein this flow chart has comprised roaming, and is non-roaming.

In general, HSS/AAA or UE or BNG/BRAS have initiated that PDN connect to discharge or the user inserts the attachment removal operation.The operation of deletion such as the relevant bearer of EPS network, session, context.

The detailed step of Figure 13 is described below:

Step 1301:HSS/AAA sends the attachment removal indication to BNG/BRAS, and indication BNG/BRAS initiates attachment removal/PDN and connects release.This is a scene that triggers operation shown in Figure 13;

Step 1302:UE sends attachment removal/PDN to BNG/BRAS and connects the request of release.This is the second scenario that triggers operation shown in Figure 13;

Step 1303:BNG/BRAS is because self reason determines to initiate attachment removal/PDN and connects release.This is the 3rd scene that triggers operation shown in Figure 13.

BNG/BRAS sends the deletion conversation request message of GTP agreement and gives P-GW, and request is removed tunnel binding with P-GW.

Step 1304:P-GW removes the binding relationship with BNG/BRAS after receiving the deletion conversation request message.P-GW and PCRF stop the IP-CAN session.

Step 1305:P-GW responds deletion conversational response message to the BNG/BRAS network element.

Step 1306:BNG/BRAS initiates fixed network strategy session modification/terminating operation to BPCF.

Step 1307:BNG/BRAS initiates the release of fixed network resource or reshuffles.

Step 1308: if there is step 1301, then BNG/BRAS can send the attachment removal response signaling to HSS/AAA.

Need to prove: above-mentioned steps 1306, can occur in after the step 1302, also can as shown in the figurely occur in after the step 1305.

Referring to Figure 14; The bearing resource modification process figure that initiate at terminal that Figure 14 realizes for framework shown in Figure 4, after having described the terminal and inserting as the non-3GPP of the trusted of EPS network through fixed network, the bearing resource retouching operation that UE initiates; Various scenes such as wherein this flow chart has comprised roaming, and is non-roaming.

The detailed step of Figure 14 is described below:

Step 1401:UE sends the resource modifying request to BNG/BRAS, is used for to EPS core network requests foundation/modification/deleting bearing resource.

Step 1402:BNG/BRAS sends the bearing resource instruction message of GTP agreement and gives P-GW, and request resource is revised.

After step 1403:P-GW receives the bearing resource instruction message, initiate the operation of IP-CAN session modification to PCRF, request PCRF examines resource modifying, feeds back to P-GW result after PCRF examines.

Load creating/modification/deletion action that step 1404:P-GW initiates.The principle of the corresponding operating among this procedure and Figure 11, Figure 12 is similar.

Step 1405:P-GW accomplishes message informing PCRF resource modifying result through the IP-CAN session modification.

Need to prove: the fixed network strategy session between BNG/BRAS and the BPCF alternately can be shown in figure, that is: occur in after the GTP message that BNG/BRAS receives that P-GW sends, also can occur in after the message that BNG/BRAS receives step 1401.If occur in after the step 1401, when fixed network can not provide the UE requested resource, BNG/BRAS can directly refuse this request, need not carry out subsequent step.

Can know that in conjunction with system shown in above-mentioned each flow chart and operating process the present invention is merged the operation thinking that realizes resource control under the scene the fixed network mobile network and can be represented shown in figure 15.Referring to Figure 15, Figure 15 merges the general flow chart of realizing resource control under the scene for the present invention the fixed network mobile network, and this flow process may further comprise the steps:

Step 1510: between P-GW and fixed network, set up the GTP interface.

Step 1520:PCRF is via the said GTP interface of P-GW and foundation, with communication informations such as fixed network interactive strategy information.

Need to prove that said policy information comprises related service quality information and the event information that relates to communication.

More than be in the instance, description be that BPCF sends to BNG/BRAS and/or other fixed network strategy execution network elements with policy information and is used for carrying out, the execution network element here also might be BPCF self.That is, BPCF possibly self carry out the partial strategy in the strategy that obtains, such as admitting control business etc.

Visible in sum; No matter be method or system; The technology that realizes resource control under the scene is merged in the present invention the fixed network mobile network; All can between P-GW and fixed network, set up the GTP interface, the S2a interface is changed to this GTP interface, and the interface based on the PMIPv6 agreement that is adopted before no longer using.And, because the interface variation between P-GW and the fixed network no longer needing to cause the direct interface between PCRF and the BPCF; Finally make PCRF to comprise the communication informations such as policy information that relate to the corresponding strategies of communicating by letter alternately with fixed network via the said GTP interface of P-GW and foundation.

Like this; Just can avoid carrying out like the use described in the background technology to the S9* interface; Can obviously reduce the influence that self treatment mechanism and outside interaction feature to PCRF cause, no longer need PCRF to strengthen, thereby obviously reduced influence the EPS system.And aforesaid new interface relationship and communication information interactive mode can effectively realize resource control and management, have reached the purpose of improving resource control and management status.

The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.

Claims

1. one kind merges under the scene method that realizes resource control the fixed network mobile network, it is characterized in that this method comprises:

Between grouped data network gateway P-GW and fixed network, set up general packet wireless service tunnel protocol GTP interface; "Policy and Charging Rules Function PCRF is via P-GW and said GTP interface, with fixed network interactive strategy information.

2. method according to claim 1 is characterized in that,

Be provided with in the said fixed network and the direct-connected wideband network gateway of mobile network/Broadband Remote Access Server BNG/BRAS; This BNG/BRAS links to each other through the fixed network policy interface with broadband forum policy control functions BPCF entity in the fixed network;

3. method according to claim 2 is characterized in that,

4. method according to claim 3 is characterized in that,

5. according to each described method of claim 2 to 4, it is characterized in that,

6. a system that merges realization resource control under the scene the fixed network mobile network is characterized in that this system comprises P-GW, the PCRF that is positioned at the mobile network, also comprises fixed network; Between said P-GW and fixed network, establish the GTP interface;

7. system according to claim 6 is characterized in that,

8. system according to claim 7 is characterized in that,

9. system according to claim 8 is characterized in that,

10. according to each described system of claim 7 to 9, it is characterized in that,