CN101483826B - Method and apparatus for selecting policy and fee charging rule functional entity - Google Patents
Method and apparatus for selecting policy and fee charging rule functional entity Download PDFInfo
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- CN101483826B CN101483826B CN2008100557128A CN200810055712A CN101483826B CN 101483826 B CN101483826 B CN 101483826B CN 2008100557128 A CN2008100557128 A CN 2008100557128A CN 200810055712 A CN200810055712 A CN 200810055712A CN 101483826 B CN101483826 B CN 101483826B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/24—Accounting or billing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
- H04L12/1453—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
- H04L12/1457—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network using an account
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/66—Policy and charging system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention discloses a method and device of a selection strategy and policy and charging rules function. The method includes: in non-roaming situations, DRA receives messages transmitted by network equipment which needs to establish conversation with PCRF; DRA makes sure that a PCRF needs to be chosen according to the information carried in the message, which then chooses the PCRF according to the stored PCRF information or reserved strategy and sends message which carries information of chosen PCRF to the network equipment or transmits the message to the chosen PCRF. The other method includes: in roaming situations, a home network DRA receives messages from a visiting network and makes sure the home network PCRF; the message which carries the information of the chosen PCRF is returned to the visiting network or the message is transmitted to the chosen PCRF. The embodiment of the invention makes the specific realizing process of choosing PCRF clear and perfects the choosing mechanism of PCRF.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to the method and apparatus of selection strategy and charging regulation function entity.
Background technology
In the network that the network of evolution such as mobile communications network and wireless access wide band technology merge, a PCRF Realm (PCRF territory, Policy and Charging Rule Function, "Policy and Charging Rules Function entity) can comprise a plurality of PCRF.PCRF Realm is managed by DRA (Diameter Routing Agent, Diameter route agent).Set up in the conversation procedure at GW (gateway), the AF network equipments such as (application servers) and PCRF, GW and AF need select PCRF through DRA.
In realizing process of the present invention, the inventor finds: about the selection of PCRF, only stipulated some high-rise descriptions at present, do not had the network equipments such as GW, AF to obtain the concrete implementation of PCRF from DRA.The network equipment selects the concrete implementation procedure of PCRF to await further perfect through DRA.
Summary of the invention
Embodiment of the present invention provides the method and apparatus of selection strategy and charging regulation function entity, can select PCRF in several ways, the clear and definite concrete realization flow of selecting PCRF, the perfect realization mechanism of selecting PCRF.In addition, also clear and definite routing procedure to Diameter route agent.
A kind of selection strategy that embodiment of the present invention provides and the method for charging regulation function entity comprise:
Under non-roaming scene, Diameter route agent receives the message that network equipment transmission comes, and the said network equipment is for setting up the network equipment of session with selection strategy and charging regulation function entity PCRF;
After Diameter route agent receives the next message of network equipment transmission; PCRF information or predetermined policy according to storage are determined PCRF, and return the message that carries the said PCRF information of determining or transmit said message to the said PCRF that determines to the said network equipment.
Embodiment of the present invention also provides the method for a kind of selection strategy and charging regulation function entity, comprising:
Under roaming scence, home network Diameter route agent receives the message that the visited network transmission comes;
After home network Diameter route agent receives the next message of visited network transmission; Determine home network PCRF, and return the message that carries the said home network PCRF information of determining or transmit said message to the said home network PCRF that determines to said visited network.
Embodiment of the present invention also provides a kind of Diameter route agent, comprising:
First module is used to receive the message that network equipment transmission comes; Said message comprises: the Diameter route agent at the place of first module under the non-roaming scene or under roaming scence is arranged in visited network, the network equipment is being set up the message that the conversation procedure transmission comes with PCRF or home network PCRF;
Second module is used for after first module receives the next message of network equipment transmission, determining PCRF or visited network PCRF according to the PCRF information or the predetermined policy of storage;
Three module is used for returning to the said network equipment and carries the PCRF that said second module determines or the message of visited network PCRF information, or transmits the said message that first module receives to said PCRF that determines or visited network PCRF.
Embodiment of the present invention also provides a kind of Diameter route agent, comprising:
Four module is used to receive the message that the visited network transmission comes; Said message comprises: under roaming scence, visited network sets up in the process message that transmission comes in session;
The 5th module, be used for the 4th receive the message that visited network transmission comes after, determine home network PCRF;
The 6th module is used for returning the message that carries the said home network PCRF information of determining or transmitting the message that four module receives to the said home network PCRF that determines to visited network.
Embodiment of the present invention also provides a kind of method for routing to Diameter route agent, comprising:
From Access Point Name APN, obtain grouped data network PDN information;
Obtain Diameter route agent place domain information according to said PDN information;
Carry out the message route according to the said domain information that obtains to Diameter route agent.
Description through technique scheme can be known; Under non-roaming scene; Diameter route agent can be back to the network equipment with the PCRF information of determining; The forwards that also can network equipment transmission be come is to the PCRF that determines, and clear and definite Diameter route agent can be used as Redirect server or Gopher, also can be used as the Proxy agency; Under roaming scence; Home network Diameter route agent can be back to visited network with the home network PCRF information of determining; Also can transmit the message that the visited network transmission comes to the home network PCRF that determines, same clear and definite Diameter route agent can be used as Redirect server or Gopher, also can be used as the Proxy agency; Embodiment of the present invention is clear and definite in the concrete implementation procedure of selecting PCRF under the non-roaming scene and under the roaming scence, the perfect realization mechanism of selecting PCRF.In addition, embodiment of the present invention is also clear and definite to the routing procedure of Diameter route agent.
Description of drawings
Fig. 1 is the method flow diagram of the selection PCRF of the embodiment of the invention one;
Fig. 2 is the method flow diagram of the selection PCRF of the embodiment of the invention two;
Fig. 3 is the method flow diagram of the selection PCRF of the embodiment of the invention three;
Fig. 4 is the method flow diagram of the selection PCRF of the embodiment of the invention four;
Fig. 5 is the method flow diagram of the selection PCRF of the embodiment of the invention five;
Fig. 6 is the method flow diagram of the selection PCRF of the embodiment of the invention six;
Fig. 7 is the method flow diagram of the selection PCRF of the embodiment of the invention seven;
Fig. 8 is the method flow diagram of the selection PCRF of the embodiment of the invention eight;
Fig. 9 is the Diameter route agent sketch map of the embodiment of the invention.
Embodiment
In embodiment of the present invention; The DRA that bearing selection PCRF responsibility in the network of evolution can be after having selected PCRF; Need not the message of receiving be routed to the PCRF place of selection; Also can the message of receiving be routed to PCRF, promptly bear the role that the DRA that selects the PCRF responsibility can serve as Redirect server or Gopher, also can serve as Proxy agency's role.
Under non-roaming application scenarios, the corresponding DRA of the network equipment that sets up session with needs bears selection PCRF responsibility.Under the application scenarios of roaming, bear and select the DRA of PCRF responsibility can be merely home network DRA, also can be visited network DRA and home network DRA.The network equipment in the embodiment of the present invention is for need set up the network equipment of session with PCRF; This network equipment can be GW; Also AF can be, certainly, also other network equipment can be; GW can be aGW (access Gateway, IAD) of Serving GW (gateway), PDN GW (packet data network gateway), non-3GPP network etc.Wherein, when non-3GPP network was WIMAX, non-3GPP aGW can be ASN GW (AccessService Network Gateway, an access service gateway); When non-3GPP network was CDMA2000 HRPD (High Rate Packet Data network, high-speed packet data network), non-3GPP aGW can be PDSN (Packet Data Serving Node, a packet data serving node); When non-3GPP network was IWLAN (Interworking Wireless Local Access network, the wireless local Access Network of support intercommunication), non-3GPP aGW can be ePDG (evolved Packet Data Gateway, an evolution packet data gateway).Embodiment of the present invention is the concrete manifestation form of limiting network equipment not.
The technical scheme of the selection PCRF that embodiment of the present invention provides can be applied in the 3GPP system, also can use in the system of non-3GPP access.And the session that can be applied in Initial Attach (initially adhering to) is set up in the process, and the session that also can be applied in handover (switching) is set up in the process, certainly, also can be applied in other process that need set up session.
When the technical scheme of the selection PCRF that embodiment of the present invention provides is applied in the 3GPP initial Attach process and between Serving GW and the PDN GW during based on IETF; Serving GW, PDN GW and AF need set up Session (session) with PCRF, promptly Serving GW, PDN GW and AF all need with DRA alternately to obtain corresponding PCRF information.Under above-mentioned situation, the following GW that describes to accompanying drawing comprises: Serving GW and PDN GW.
When the technical scheme of the selection PCRF that embodiment of the present invention provides is applied in the 3GPP initial Attach process and between Serving GW and the PDN GW during based on the GTP agreement; Have only PDN GW and AF to set up Session with PCRF, promptly PDN GW and AF need with DRA alternately to obtain corresponding PCRF information.Under above-mentioned situation, the following GW that describes to accompanying drawing comprises: PDN GW.
When the technical scheme of the selection PCRF that embodiment of the present invention provides be applied in the handoff procedure from other networks to 3GPP and Serving GW and PDN GW during based on IETF; Under the situation that Serving GW changes; Need carry out reselecting of PCRF; At this moment, Serving GW need with DRA alternately to obtain corresponding PCRF information.Under above-mentioned situation, the GW that describes to accompanying drawing below comprises: Serving GW.
When the technical scheme of the selection PCRF that embodiment of the present invention provides be applied in the initialAttach process of non-3GPP and the terminal based on S2 (interface between non-3GPP aGW and the PDN GW) roaming or when non-roaming; Non-3GPP aGW (access Gateway; IAD), PDN GW and AF need set up session with PCRF, promptly non-3GPP aGW, PDN GW and AF all need with DRA alternately to obtain PCRF information.Under above-mentioned situation, the following GW that describes to accompanying drawing comprises: non-3GPP aGW, PDN GW.Wherein non-3GPP aGW can be ePDG, ASN GW, PDSN etc.
When the technical scheme of the selection PCRF that embodiment of the present invention provides is applied in the initialAttach process of non-3GPP and roaming is that the terminal is when roaming based on the S2+S8 interface based on S8 (interface between Serving GW and the PDN GW) interface at the terminal; Non-3GPP aGW, PDN GW, Serving GW and AF need set up session with PCRF, promptly non-3GPP aGW, PDN GW, Serving GW and AF all need with DRA alternately to obtain PCRF information.Under above-mentioned situation, the following GW that describes to accompanying drawing comprises: non-3GPP aGW, Serving GW, PDN GW.Non-3GPP aGW such as ePDG, ASN GW, PDSN etc.
When the technical scheme of the selection PCRF that embodiment of the present invention provides is applied in the handoff procedure from other networks to non-3GPP and terminal when roaming based on S2; Have only the aGW of non-3GPP to change, promptly the aGW of non-3GPP need reselect PCRF to set up new session.Under above-mentioned situation, the following GW that describes to accompanying drawing comprises: non-3GPP aGW.
When the technical scheme of the selection PCRF that embodiment of the present invention provides is applied in the handoff procedure from other networks to non-3GPP and terminal when roaming based on the S2+S8 interface; Non-3GPP aGW and ServingGW possibly change, and promptly non-3GPP aGW and Serving GW possibly need reselect PCRF to set up new session.In this case, the following GW that describes to accompanying drawing comprises: among non-3GPP aGW and the Serving GW any one or two.
The method flow of the selection PCRF that embodiment of the present invention is provided below in conjunction with accompanying drawing, to different application scenes is elaborated.
Be under the non-roaming application scenarios as Redirect server and terminal at DRA, the flow process of selecting PCRF is shown in accompanying drawing 1.
Among Fig. 1, step 1, GW/AF (GW or AF) confirm and need set up binding session with corresponding PCRF that GW/AF sends session according to routing iinformation (like default routing configuration information) to DRA and sets up request, sets up GW/AF to the session between the PCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN (Access Point Name, Service Access point title) etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, GW/AF also can carry out the route that request message is set up in session according to NAI or other information.
Step 4, GW/AF obtain PCRF information after receiving the redirect notification message of returning of DRA from redirect notification message, and send session according to PCRF information to PCRF and set up request, i.e. process is set up in the GW/AF session that directly is initiated to PCRF.
Session in above-mentioned Fig. 1 step 1 request of setting up also can be an inquiry request message, promptly the flow process among Fig. 1 also can for: when GW/AF sets up session at needs with PCRF, initiatively send inquiry request message, to obtain corresponding PCRF information to DRA; DRA can adopt the content choice PCRF of above-mentioned Fig. 1 step 2 description after receiving inquiry request message, then, DRA is carried at the PCRF information of selecting in the query response message and returns to GW/AF; Afterwards, GW/AF obtains PCRF information from query response message, and sends session according to PCRF information to PCRF and set up request.At this moment, DRA is as Gopher.
Be under the application scenarios of roaming as Redirect server and terminal at DRA, the flow process of selecting an embodiment of PCRF is shown in accompanying drawing 2.In this embodiment, vDRA (visited network DRA), hDRA all participate in PCRF and select, and promptly vDRA, hDRA all bear PCRF and select responsibility; There is intercommunication interface between vPCRF (visited network PCRF) and the hDRA, to carry out the transmission of messages between vPCRF and the hDRA.
Among Fig. 2; Step 1, GW/AF confirm and need set up binding session with the hPCRF (home network PCRF) in the home network; GW/AF sends session according to the vDRA of routing iinformation (like default routing configuration information) in visited network and sets up request, sets up GW/AF to the session between the hPCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, GW/AF also can carry out route according to NAI or other information.
Step 4, GW/AF obtain vPCRF information after receiving the redirect notification message of returning of vDRA from redirect notification message, and send session according to vPCRF information to vPCRF and set up request, i.e. process is set up in the GW/AF session that directly is initiated to vPCRF.
Step 7, hDRA are carried at the hPCRF information of selecting in the redirect notification message and return to vPCRF.
After step 8, vPCRF receive the redirect notification message that hDRA returns, send session according to the hPCRF information of carrying in the redirect notification message to hPCRF information and set up request message.VPCRF send session set up request message process can for: the host name in the redirect notification message destination address that hDRA is returned is revised as points to home network hPCRF.
Step 9, hPCRF are receiving after session sets up request message, return session to vPCRF and set up and receive the response.
Step 10, vPCRF set up the session that receives to receive the response and are transmitted to GW/AF.Thereby process is set up in the session of having accomplished between GW/AF and the hPCRF.
Session in above-mentioned Fig. 2 step 1, the step 5 request of setting up also can be an inquiry request message, promptly the flow process among Fig. 2 also can for: when GW/AF sets up session at needs with PCRF, initiatively send inquiry request message, to obtain corresponding vPCRF information to vDRA; VDRA after receiving inquiry request message, the content choice vPCRF that can adopt above-mentioned Fig. 2 step 2 to describe, and the vPCRF information of selecting is carried in the query response message returns to GW/AF; Afterwards, GW/AF obtains vPCRF information from query response message, and sends session according to vPCRF information to vPCRF and set up request; VPCRF is receiving session foundation request back to hDRA transmission inquiry request message, to obtain corresponding hPCRF information; HDRA after receiving inquiry request message, the content choice hPCRF that can adopt above-mentioned Fig. 2 step 6 to describe, and the hPCRF information of selecting is carried in the query response message returns to vPCRF; VPCRF obtains hPCRF information from the query response message that receives, and sends session according to hPCRF information to hPCRF and set up request, subsequent step such as Fig. 2 step 9,10 description.At this moment, DRA is as Gopher.
Be under the application scenarios of roaming as Redirect server and terminal at DRA, the flow process of selecting another embodiment of PCRF is shown in accompanying drawing 3.In this embodiment, vDRA, hDRA all participate in PCRF and select, and promptly vDRA, hDRA all bear PCRF and select responsibility; There is intercommunication interface between vDRA and the hDRA, to carry out the transmission of messages between vDRA and the hDRA.
Among Fig. 3; Step 1, GW/AF confirm and need set up binding session with the hPCRF in the home network; GW/AF sends session according to the vDRA of routing iinformation (like default routing configuration information) in visited network and sets up request, sets up GW/AF to the session between the hPCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, GW/AF also can carry out route according to NAI or other information.
Step 4, hDRA are carried at the hPCRF information of selecting in the redirect notification message and return to vDRA.
After step 5, vDRA receive redirect notification message; Judge whether to preserve the vPCRF information in the selected visited network according to loaded information in the redirect notification message (as according to terminal identification information, terminal address information and APN etc., perhaps according to PDN ID, terminal address information etc.); If preserve selected vPCRF information, then directly obtain the vPCRF information of preservation; If there is not to preserve selected vPCRF; Then vDRA selects a vPCRF (like vDRA according to only vPCRF of policy selection such as load sharing) according to predetermined local policy; And vPCRF information that preserve to select, the form of preservation can be the corresponding relation of terminal iidentification, terminal address, APN and vPCRF information.The vPCRF information that vDRA preserves can be one or more among PCRF ID, PCRF IP Address, the PCRF FQDN.
Step 7, GW/AF obtain hPCRF information and vPCRF information from the redirect notification message that receives, and send session according to vPCRF information to vPCRF and set up request message, and this session is set up and carried hPCRF information in the request message.The embodiment of the invention can be set up session through the mode of setting up in the request message new AVP of expansion (Attribute-Value Pairs, property value to) in session and carry hPCRF information in the request message.
Step 8, vPCRF are obtained hPCRF information from the AVP of request message is set up in the session that receives, and transmit session to hPCRF and set up request message.
Step 9, hPCRF return session foundation to vPCRF receives the response.
Step 10, vPCRF transmit session foundation to GW/AF receives the response.Thereby process is set up in the session of having accomplished between GW/AF and the hPCRF.
Session in above-mentioned Fig. 3 step 1, the step 2 request of setting up also can be an inquiry request message, promptly the flow process among Fig. 3 also can for: when GW/AF sets up session at needs with PCRF, initiatively send inquiry request message, to obtain corresponding vPCRF information to vDRA; VDRA sends inquiry request message to hDRA after receiving inquiry request message, to obtain corresponding hPCRF information; HDRA after receiving inquiry request message, the content choice hPCRF that can adopt above-mentioned Fig. 3 step 3 to describe, and the hPCRF information of selecting is carried in the query response message returns to vDRA; The content choice vPCRF that vDRA can adopt above-mentioned Fig. 3 step 5 to describe, and the vPCRF information of hPCRF information, selection is carried in the query response message returns to GW/AF; Afterwards, GW/AF obtains vPCRF information from query response message, and sends session according to vPCRF information to vPCRF and set up request, and this session is set up in the request and carried hPCRF information; VPCRF sets up hPCRF information in the request according to session and transmits session to hPCRF and set up request message after receiving the session request of setting up, subsequent step such as Fig. 3 step 9,10 description.At this moment, DRA is as Gopher.
Be under the application scenarios of roaming as Redirect server and terminal at DRA, the flow process of selecting another embodiment of PCRF is shown in accompanying drawing 4.In this embodiment, vDRA (visited network DRA) does not participate in the PCRF selection, hDRA participates in PCRF and selects, and promptly vDRA does not bear PCRF selection responsibility, hDRA bears PCRF and selects responsibility; There is intercommunication interface between vPCRF and the hDRA, to carry out the transmission of messages between vPCRF and the hDRA.
Among Fig. 4, step 1, GW/AF confirm and need set up binding session with the hPCRF in the home network that GW/AF sends session to vPCRF and sets up request message.GW/AF can send session to pre-configured vPCRF and set up request message, and GW/AF also can select a vPCRF and set up request message to the vPCRF of this selection transmission session according to predetermined local policy.
Step 4, hDRA are carried at the hPCRF information of selecting in the redirect notification message and return to vPCRF.
Step 7, vPCRF set up the session that receives to receive the response and are transmitted to GW/AF.Thereby process is set up in the session of having accomplished between GW/AF and the hPCRF.
Session in above-mentioned Fig. 4 step 2 request of setting up also can be an inquiry request message, promptly the flow process among Fig. 4 also can for: when GW/AF sets up session at needs with PCRF, send session to vPCRF and set up request message; VPCRF sends inquiry request message to hDRA, to obtain corresponding hPCRF information receiving after session sets up request message; HDRA after receiving inquiry request message, the content choice hPCRF that can adopt above-mentioned Fig. 4 step 3 to describe, and the hPCRF information of selecting is carried in the query response message returns to vPCRF; Subsequent step such as Fig. 4 step 5,6,7 description.At this moment, DRA is as Gopher.
Be under the non-roaming application scenarios as Proxy agency and terminal at DRA, the flow process of selecting PCRF is shown in accompanying drawing 5.
Among Fig. 5, step 1, GW/AF (GW or AF) confirm and need set up binding session with corresponding PCRF that GW/AF sends session according to routing iinformation (like default routing configuration information) to DRA and sets up request, sets up GW/AF to the session between the PCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, GW/AF also can carry out the route that request message is set up in session according to NAI or other information.
Step 4, PCRF receive after session sets up request message, set up the binding session with GW/AF, and return session to DRA and set up and receive the response.
Be under the application scenarios of roaming as Proxy agency and terminal at DRA, the flow process of selecting an embodiment of PCRF is shown in accompanying drawing 6.In this embodiment, vDRA (visited network DRA), hDRA all participate in PCRF and select, and promptly vDRA, hDRA all bear PCRF and select responsibility; There is intercommunication interface between vPCRF (visited network PCRF) and the hDRA, to carry out the transmission of messages between vPCRF and the hDRA.
Among Fig. 6; Step 1, GW/AF confirm and need set up binding session with the hPCRF (home network PCRF) in the home network; GW/AF sends session according to the vDRA of routing iinformation (like default routing configuration information) in visited network and sets up request, sets up GW/AF to the session between the hPCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, GW/AF also can carry out the route that request message is set up in session according to NAI or other information.
Step 4, vPCRF send session according to the hDRA of routing iinformation (like default routing configuration information) in home network and set up request after receiving session foundation request, are established to the session between the hPCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, vPCRF also can carry out the route that request message is set up in session according to NAI or other information.
Step 7, hPCRF are receiving after session sets up request message, set up the binding session with GW/AF, and return session to hDRA and set up and receive the response.
Step 8, hDRA transmit the session foundation that receives to vPCRF receives the response.
Step 9, vPCRF transmit the session foundation that receives to vDRA receives the response.
Step 10, vDRA set up the session that receives to receive the response and are transmitted to GW/AF.Thereby process is set up in the session of having accomplished between GW/AF and the hPCRF.
Be under the application scenarios of roaming as Proxy agency and terminal at DRA, the flow process of selecting another embodiment of PCRF is shown in accompanying drawing 7.In this embodiment, vDRA does not participate in the PCRF selection, hDRA participates in PCRF and selects, and promptly vDRA does not bear PCRF selection responsibility, hDRA all bears PCRF and selects responsibility; There is intercommunication interface between vDRA and the hDRA, to carry out the transmission of messages between vDRA and the hDRA.
Among Fig. 7; Step 1, GW/AF confirm and need set up binding session with the hPCRF in the home network; GW/AF sends session according to the vDRA of routing iinformation (like default routing configuration information) in visited network and sets up request, sets up GW/AF to the session between the hPCRF with request.Session is set up in the request message can the carried terminal identification information, terminal address information and APN etc.; Perhaps session is set up and can be carried PDN ID, terminal address information etc. in the request message.In addition, GW/AF also can carry out route according to NAI or other information.
Step 4, hDRA transmit session to the hPCRF that selects and set up request message.
Step 7, vDRA transmit session foundation to GW/AF receives the response.Thereby process is set up in the session of having accomplished between GW/AF and the hPCRF.
Be under the application scenarios of roaming as Proxy agency and terminal at DRA, the flow process of selecting another embodiment of PCRF is shown in accompanying drawing 8.In this embodiment, vDRA does not participate in the PCRF selection, hDRA participates in PCRF and selects, and promptly vDRA does not bear PCRF selection responsibility, hDRA bears PCRF and selects responsibility; There is intercommunication interface between vPCRF and the hDRA, to carry out the transmission of messages between vPCRF and the hDRA.
Among Fig. 8, step 1, GW/AF confirm and need set up binding session with the hPCRF in the home network that GW/AF sends session to vPCRF and sets up request message.GW/AF can send session to pre-configured vPCRF and set up request message, and GW/AF also can select a vPCRF and set up request message to the vPCRF of this selection transmission session according to predetermined local policy.
Step 4, hDRA transmit session to the hPCRF that selects and set up request message.
Step 7, vDRA transmit session foundation to GW/AF receives the response.Thereby process is set up in the session of having accomplished between GW/AF and the hPCRF.
In each execution mode of foregoing description; Route to DRA (comprising DRA and visited network DRA under the roaming scence or home network DRA under the non-roaming scene) possibly need PDN information (like PDNID), even be used as the route that auxiliary PDN information is implemented to DRA.Owing to there is the implementation procedure of multiple choices PCRF, therefore, the application entity of route that implements DRA is also different, and this entity can be GW/AF, also can be vPCRF, can also be vDRA.In practical application, the Realm (territory) at PCRF place can divide according to PDN ID, and in this case, the implementation procedure of obtaining PDN information can comprise following process:
The application entity of route that implements DRA need obtain corresponding PDN information from APN before carrying out the Diameter route, PDN information such as PDN ID then, obtain the Realm at corresponding DRA place according to PDN information.The implementation of obtaining the Realm at corresponding DRA place according to PDN information can be: directly from PDN information, extract Realm information; Also can be: information configured be obtained Realm information on the network entity that conducts interviews with DRA as required, and the information configured here is like the mapping table of the Realm at PDN information and DRA place.Embodiment of the present invention does not limit the concrete manifestation form of the network entity that conducts interviews with DRA.
After the Realm information of having obtained corresponding DRA place, the application entity that implements the route of DRA carries out route with the Realm information at the DRA place that obtains as Destination Realm.
Below in conjunction with accompanying drawing the DRA that embodiment of the present invention provides is described.
Accompanying drawing 9 is the DRA sketch map, and the DRA among Fig. 9 can comprise: first module, second module, three module, four module, the 5th module, the 6th module and the 7th module.Need to prove; Be at the terminal under the non-roaming situation, or be in roaming state and DRA at the terminal and be under the visited network situation; Through the operation of first module, second module and three module, perhaps can successfully select PCRF or home network PCRF through the operation of first module, second module, three module and the 7th module.Be in roaming state and DRA at the terminal and be under the home network situation,, can successfully select home network PCRF through the operation of four module, the 5th module and the 6th module.
First module receives the message that network equipment transmission comes.Promptly under non-roaming scene, the network equipment need be set up session with PCRF, and then the network equipment sends message to DRA, and first module receives the message that the network equipment sends; Under roaming scence, the network equipment need be set up session with hPCRF, and then the network equipment sends message to vDRA, and first module receives the message that the network equipment sends.The message that first module receives can be that request message is set up in the session that is used to set up session, and at this moment, the DRA at first module place has served as Redirect server or Proxy agency's role; The message that first module receives also can be information inquiring request message, and at this moment, the DRA at first module place has served as the role of Gopher.
Under non-roaming scene; The information of carrying in the message that second module utilizes first module to receive can judge whether need select PCRF; Is after request message or information inquiring request message are set up in session like second module in the message of judging the reception of first module, and determining needs to select PCRF.Need to select PCRF if judge; Then second module utilizes the PCRF information of DRA storage to determine PCRF; Perhaps second module is selected PCRF according to predetermined policy; For example, behind the PCRF of the information matches of carrying in the message that second module does not have to receive with first module in the PCRF information of judging the DRA storage, utilize predetermined policy to select PCRF again.The PCRF information of DRA storage can be the correspondence relationship information of terminal and PCRF.The PCRF information of storing among the DRA can be provided with through the static configuration mode, also can be provided with through the dynamic-configuration mode.Second module among dynamic-configuration mode such as the DRA is distributed PCRF according to predetermined policy, after having assigned, and the PCRF information of DRA memory allocation.
Under roaming scence; The information of carrying in the message that second module utilizes first module to receive can judge whether need select vPCRF; Is after request message or information inquiring request message are set up in session like second module in the message of judging the reception of first module, and determining needs to select vPCRF.Need to select vPCRF if judge; Then second module utilizes the vPCRF information of vDRA storage to determine vPCRF; Perhaps second module is selected vPCRF according to predetermined policy; For example, behind the vPCRF of the information matches of carrying in the message that second module does not have to receive with first module in the vPCRF information of judging the vDRA storage, utilize predetermined policy to select vPCRF again.The vPCRF information of DRA storage can be the correspondence relationship information of terminal and vPCRF.The vPCRF information of storing among the vDRA can be provided with through the static configuration mode, also can be provided with through the dynamic-configuration mode.Second module among dynamic-configuration mode such as the vDRA is distributed vPCRF according to predetermined policy, after having assigned, and the vPCRF information of vDRA memory allocation.
After second module is determined PCRF or vPCRF; Three module can return to the network equipment and carry the PCRF information that second module determines or the message of vPCRF information, also can transmit the message that first module receives to PCRF or the vPCRF that second module is determined.The message that receives when first module is that session is when setting up request message; Three module can return the redirect notification that carries PCRF information or vPCRF information to the network equipment (like above-mentioned Fig. 1 step 3, Fig. 2 step 3), also can set up request message (like above-mentioned Fig. 5 step 3, Fig. 6 step 3) to PCRF that determines or vPCRF forwarding session.When the message that receives when first module was information inquiring request message, three module can return the information inquiry that carries PCRF information or vPCRF information to the network equipment receiveed the response.
Under roaming scence, when the DRA at first module, second module and three module place is that vDRA and vDRA bear under the situation of selecting the PCRF responsibility first module, second module and the performed operation like above-mentioned description of three module.Do not bear under the situation of selecting the PCRF responsibility at vDRA, vDRA directly gets final product (step 2 in like Fig. 7) to the message that the transmission of hDRA forwarding network appliance comes.
Be under the applicable cases of home network at roaming scence and DRA; Visited network can be set up in the process of session between network equipment needs and hPCRF; DRA in being in home network is that hDRA sends message; PCRF as in the visited network sends message to hDRA, and the vDRA in the visited network sends message to hDRA for another example.Four module among the hDRA receives the message that visited network sends.The message that four module receives can be the message that the visited network forwarding network appliance sends, and also can be the new message that visited network produces after the message that receives network equipment transmission, like information inquiring request message.The sight of the message that four module reception visited network sends such as the step 5 among above-mentioned Fig. 2, the step 2 among Fig. 3, the step 2 among Fig. 4, the step 4 among Fig. 6, the step 2 among Fig. 7, the step 2 among Fig. 8 etc.
After four module received the message that visited network sends, the 5th module judged whether that according to the information of carrying in the message needs select hPCRF, judge need to select hPCRF after, determine hPCRF.The process that the 5th module is determined hPCRF can be utilized the PCRF information of hDRA storage for: the 5th module and determine hPCRF; Perhaps the 5th module is selected hPCRF according to predetermined policy; For example; Behind the hPCRF of the information matches of carrying in the message that the 5th module does not have to receive with four module in the hPCRF information of judging the hDRA storage, utilize predetermined policy to select hPCRF again.The hPCRF information of hDRA storage can be the correspondence relationship information of terminal and PCRF.The hPCRF information of storing among the hDRA can be provided with through the static configuration mode, also can be provided with through the dynamic-configuration mode.The 5th module among dynamic-configuration mode such as the hDRA is distributed hPCRF according to predetermined policy, after having assigned, and the hPCRF information of hDRA memory allocation.
After the 5th module was determined hPCRF, the 6th module can be returned the message that carries the hPCRF information that the 5th module determines to visited network, also can transmit the message that four module receives to the hPCRF that the 5th module is determined.The message that receives when four module is that session is when setting up request message; The 6th module can be returned the redirect notification that carries hPCRF information to visited network and (like above-mentioned Fig. 2 step 7, Fig. 3 step 4, Fig. 4 step 4), also can transmit session to the hPCRF that determines and set up request message (like above-mentioned Fig. 6 step 6, Fig. 7 step 4, Fig. 8 step 4).When the message that receives when four module was information inquiring request message, the 6th module can be returned the information inquiry that carries hPCRF information to visited network and receives the response.
Being arranged in visited network at the DRA that the 7th module belongs to is that the 7th module is positioned at vDRA and vDRA participates under the situation of vPCRF selection, and the 7th module receives hDRA and directly transmits next message, and perhaps the 7th module reception hDRA is through the next message of vPCRF transmission.
The information of carrying in the message that second module utilizes the 7th module to receive can judge whether need select vPCRF; The information of in according to message, carrying like second module in Fig. 3 step 5 is judged message that hDRA sends for after being redirected notification message, and judging needs to select vPCRF.If judging, second module needs to select vPCRF; Then second module utilizes the vPCRF information of vDRA storage to determine vPCRF; Perhaps second module is selected vPCRF according to predetermined policy; For example, behind the vPCRF of the information matches of carrying in the message that second module does not have to receive with the 7th module in the vPCRF information of judging the vDRA storage, utilize predetermined policy to select vPCRF again.The vPCRF information of DRA storage can be the correspondence relationship information of terminal and vPCRF.The vPCRF information of storing among the vDRA can be provided with through the static configuration mode, also can be provided with through the dynamic-configuration mode.Second module among dynamic-configuration mode such as the vDRA is distributed vPCRF according to predetermined policy, after having assigned, and the vPCRF information of vDRA memory allocation.
After second module was determined PCRF, three module can return the message that carries the vPCRF information that second module determines to the network equipment.The message that receives when the 7th module is that redirect notification is (like above-mentioned Fig. 6 step 4); Then three module can be carried at the vPCRF information that second module is determined in the redirect notification message, and returns redirect notification message (like above-mentioned Fig. 3 step 6) to the network equipment.
Though described the present invention through embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (16)
1. the method for selection strategy and charging regulation function entity is characterized in that, comprising:
Under roaming scence, home network diameter Diameter route agent receives the message that the visited network transmission comes;
After home network Diameter route agent receives the next message of visited network transmission; Determine home network PCRF, and return the message that carries the said home network PCRF information of determining or transmit said message to the said home network PCRF that determines to said visited network.
2. the method for claim 1 is characterized in that, the message that the transmission of said visited network comes comprises: request is set up in the session that is used to obtain the query messages of PCRF information or is used to ask set up session between the network equipment and the PCRF; The said message of returning comprises: the query response message corresponding with query messages or with the corresponding redirect notification of the session request of setting up; The message of said forwarding comprises: request is set up in session.
3. the method for claim 1 is characterized in that, the step that said home network Diameter route agent receives the message that the visited network transmission comes comprises:
Home network Diameter route agent receives the message that visited network PCRF transmission comes; Perhaps home network Diameter route agent receives the message that the transmission of visited network Diameter route agent comes.
4. method as claimed in claim 3 is characterized in that, the step of the message that the said home network Diameter reception visited network PCRF of route agent transmission comes comprises:
The visited network Diameter route agent message that transmission comes according to the network equipment is confirmed needs selection visited network PCRF, and visited network Diameter route agent determines visited network PCRF and returns visited network PCRF information to the said network equipment;
The said network equipment sends message according to the visited network PCRF information that receives to visited network PCRF; By visited network PCRF with the forwards that receives to home network Diameter route agent, or produce new message by visited network PCRF according to the message received and be sent to home network Diameter route agent;
The said network equipment is for need set up the network equipment of session with home network PCRF.
5. method as claimed in claim 3 is characterized in that, the step of the message that the said home network Diameter reception visited network PCRF of route agent transmission comes comprises:
Visited network PCRF receives the message that network equipment transmission comes, and is forwarded to home network Diameter route agent, or the message of coming according to said network equipment transmission produces new information and sending to home network Diameter route agent.
6. method as claimed in claim 5 is characterized in that, said visited network PCRF receives the message that network equipment transmission comes, and the step that is forwarded to home network Diameter route agent comprises:
Visited network PCRF is visited network PCRF at the destination address of confirming the message that network equipment transmission comes; The purpose domain name is pointed to visited network; Then confirm home network information according to the user equipment information that carries in the message; The purpose domain name of the message that network equipment transmission is next is revised as the sensing home network, and transmits to home network Diameter route agent.
7. like claim 4 or 5 described methods, it is characterized in that said step from the PCRF information of said selection to said visited network that return comprises:
Home network Diameter route agent returns the home network PCRF information of determining to visited network PCRF, utilizes said home network PCRF information to set up session by said visited network PCRF.
8. method as claimed in claim 3 is characterized in that,
The step that said home network Diameter route agent receives the message that the transmission of visited network Diameter route agent comes comprises:
After visited network Diameter route agent receives the next message of network equipment transmission; The forwards of receiving to home network Diameter route agent, or is produced new message by visited network Diameter route agent according to the message received and is sent to Diameter route agent;
The said network equipment is for need set up the network equipment of session with home network PCRF.
9. method as claimed in claim 8 is characterized in that, said step from the PCRF information of said selection to said visited network that return comprises:
Home network Diameter route agent returns the said home network PCRF information of determining to visited network Diameter route agent; And said method also comprises:
Visited network Diameter route agent determines visited network PCRF, and with visited network PCRF information and home network PCRF message transmission to the network equipment;
The network equipment sends session foundation request according to visited network PCRF information and home network PCRF information to visited network PCRF; Visited network PCRF sets up the home network PCRF information of carrying in the request and sends session foundation request to home network PCRF according to session, to set up session.
10. method as claimed in claim 3 is characterized in that, the step of the message that the said home network Diameter reception visited network PCRF of route agent transmission comes comprises:
The visited network Diameter route agent message that transmission comes according to the network equipment is confirmed needs selection PCRF; Visited network Diameter route agent determines visited network PCRF; And transmit said message to said visited network PCRF, transmit said message by said visited network PCRF to home network Diameter route agent;
The said network equipment is for need set up the network equipment of session with home network PCRF.
11. like claim 4 or 8 or 10 described methods; It is characterized in that the message that the transmission of the said network equipment comes comprises: the session that is used to obtain the query messages of visited network PCRF information or is used to ask set up session between the network equipment and the home network PCRF is set up and is asked; The said message of returning comprises: the query response message corresponding with query messages or with the corresponding redirect notification of the session request of setting up.
12., it is characterized in that the step of determining visit or home network PCRF comprises like claim 4 or 5 or 9 or 10 described methods:
Visit or home network Diameter route agent judge whether to store the PCRF information of coupling;
If store the PCRF information of coupling, then the PCRF information of said coupling is confirmed as visit or home network PCRF;
If do not store the PCRF information of coupling, then determine visit or home network PCRF according to predetermined policy;
When visit or home network Diameter route agent confirm visit or home network PCRF according to predetermined policy, visit or said visit of determining of storage of home network Diameter route agent or home network PCRF information.
13. a diameter Diameter route agent is characterized in that, comprising:
First module is used to receive the message that network equipment transmission comes; Said message comprises: under roaming scence and said Diameter trip is arranged under the situation of visited network by the agency, the network equipment is being set up the message that the conversation procedure transmission comes with PCRF or home network PCRF;
Second module is used for after first module receives the next message of network equipment transmission, determining PCRF or visited network PCRF according to the PCRF information or the predetermined policy of storage;
Three module is used for returning to the said network equipment and carries the PCRF that said second module determines or the message of visited network PCRF information, or transmits the said message that first module receives to said PCRF that determines or visited network PCRF.
14. a diameter Diameter route agent is characterized in that, comprising:
Four module is used to receive the message that the visited network transmission comes; Said message comprises: under roaming scence, visited network sets up in the process message that transmission comes in session;
The 5th module, be used for the 4th receive the message that visited network transmission comes after, determine home network PCRF;
The 6th module is used for returning the message that carries the said home network PCRF information of determining or transmitting the message that four module receives to the said home network PCRF that determines to visited network.
15. Diameter as claimed in claim 14 route agent is characterized in that, also comprises:
First module is used to receive the message that network equipment transmission comes; Said message comprises: the Diameter route agent at the place of first module under the non-roaming scene or under roaming scence is arranged in visited network, the network equipment is being set up the message that the conversation procedure transmission comes with PCRF or home network PCRF;
Second module is used for after first module receives the next message of network equipment transmission, determining PCRF or visited network PCRF according to the PCRF information or the predetermined policy of storage;
Three module is used for returning to the said network equipment and carries the PCRF that said second module determines or the message of visited network PCRF information, or transmits the said message that first module receives to said PCRF that determines or visited network PCRF.
16. Diameter as claimed in claim 14 route agent is characterized in that, also comprises:
The 7th module receives the message that home network Diameter route agent returns;
Second module; Be used for being positioned under the situation of visited network and participation PCRF selection in the Diameter at its place route agent; The information of carrying in the message according to the reception of the 7th module is determined visited network PCRF according to the PCRF information or the predetermined policy of storage after confirming that needs are selected visited network PCRF;
Three module is used for returning the message that carries the visited network PCRF information that said second module determines to the said network equipment.
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| CN2008100557128A CN101483826B (en) | 2008-01-07 | 2008-01-07 | Method and apparatus for selecting policy and fee charging rule functional entity |
| PCT/CN2009/070046 WO2009092304A1 (en) | 2008-01-07 | 2009-01-06 | A method and apparatus for selecting the policy and charging rule function entity |
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