CN102264054B - Resource management method and system - Google Patents
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Abstract
The invention relates to a resource management method and a resource management system. The resource management method comprises the following steps that: a policy and charging rule function (PCRF) acquires information of a mobile management entity (MME) associated with a session of an internet protocol (IP) connecting access network (IP-CAN); the PCRF creates a session with the MME according to the acquired MME information; and the PCRF acquires network load information from the MME through the created session and carries out resource management according to the network load information. By the resource management method and the resource management system, the policy control and the service authorization which correspond to the network load can be realized.
Description
Technical field
The present invention relates to moving communicating field, be specifically related to a kind of method for managing resource and system.
Background technology
Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) grouping system (the Evolved Packet System of evolution, referred to as EPS) by universal mobile telecommunications system land radio access web (the Evolved Universal Terrestrial Radio AccessNetwork of evolution, referred to as E-UTRAN), mobile management unit (Mobility ManagementEntity, referred to as MME), gateway (Serving Gateway, S-GW), grouped data network gateway (Packet Data Network Gateway, referred to as P-GW or PDN GW), home subscriber server (Home Subscriber Server, referred to as HSS), authentication and authorization charging (the Authentication of 3GPP, Authorization and Accounting, referred to as AAA) server, "Policy and Charging Rules Function (Policy and Charging Rules Function, referred to as PCRF) entity and other support nodes composition.
Fig. 1 is according to the schematic diagram of the system architecture of the EPS of correlation technique, and as shown in Figure 1, Mobility Management Entity is responsible for the related work of the chains of command such as the processing of mobile management, Non-Access Stratum signaling and the contextual management of user's mobile management; S-GW is the accessing gateway equipment being connected with E-UTRAN, forwarding data between E-UTRAN and P-GW, and be responsible for the pending datas such as paging to carry out buffer memory; P-GW (packet data gateway) is the borde gateway of EPS and packet data network (Packet Data Network, referred to as PDN) network, is responsible for the access of PDN and the function such as forwarding data between EPS and PDN; S-GW and P-GW belong to core net gateway; PCRF is "Policy and Charging Rules Function entity, it is by receiving interface Rx and carrier network agreement (Internet Protocol, referred to as IP) business network is connected, obtain business information, in addition, it is connected with the gateway device in network by Gx/Gxa/Gxc interface, be responsible for initiating the foundation of IP carrying, guarantee the service quality (Quality of Service, referred to as QoS) of business datum, and carry out charging control.
EPS supports the intercommunication with non-3 GPP system, and wherein, by S2a/b/c Interface realization, P-GW is as the anchor point between 3GPP and non-3 GPP system with the intercommunication of non-3 GPP system.In the system architecture diagram of EPS, non-3 GPP system is divided into the non-3GPP IP access of trusted and trustless non-3GPP IP access.The non-3GPP IP access of trusted can directly be connected with P-GW by S2a interface; Trustless non-3GPPIP access needs packet data gateway (the Evolved Packet Data Gateway through evolution, referred to as ePDG) be connected with P-GW, interface between ePDG and P-GW is S2b, S2c provides subscriber equipment (User Equipment, referred to as UE) control and the mobility support relevant to user's face between P-GW, the mobility management protocol of its support is for supporting the mobile IP v 6 (Moblie IPv6Support for Dual Stack Hosts and Routers, referred to as DSMIPv6) of two stacks.
Among EPS system, strategy and charge execution function (Policy and Charging EnforcementFunction, referred to as PCEF) entity are present in P-GW, Gx interface (seeing Fig. 1) exchange message between PCRF and P-GW.When the interface between P-GW and S-GW is during based on PMIPv6, S-GW also has bearing binding and event reporting function (Bearer Binding and Event Report Function, referred to as BBERF) entity carries out QoS control to business data flow, between S-GW and PCRF by Gxc interface (seeing Fig. 1) exchange message.When by the non-3GPP connecting system access of trusted, the trusted non-3 GPP access network Central Shanxi Plain is resident BBERF also.Trusted non-3 GPP access network close and PCRF between by Gxa interface (seeing Fig. 1) exchange message.When UE roams, S9 interface is as the interface of ownership place PCRF and visited place PCRF, application function (the ApplicationFunction of business is provided for UE simultaneously, referred to as AF), by Rx interface, to PCRF, send to be used for generating strategy and control business information of (Policy andCharging Control, referred to as PCC) strategy with charging.In 3GPP, by APN (Access Point Name, referred to as APN), can find corresponding PDN network.Conventionally UE is called to an IP to a connection of PDN network and connects Access Network (IP Connectivity AccessNetwork, referred to as IP-CAN) session.In setting up the process of IP-CAN session, BBERF and PCEF respectively and between PCRF, set up Diameter session, transmit policy, billing information that this IP-CAN session is controlled and for the information of generating strategy etc. by these Diameter sessions.
Under current operation mode, there are some business, operator need to adopt push mode to carry out (so-called push mode, the triggering that refers to this business is the service server from operator, such business is carried out and can be held consultation with user UE) time, for example: operator sends advertisement to user, the business such as notice; The normally non real-time class business of this class business (so-called non real-time class business, refers to that this business can carry out at current time, also can be postponed), for example: consider current network actual loading situation, if loading condition is heavier, can not carry out such business, postpone the execution of this business.The benefit of doing is like this: can when offered load is heavier, effectively avoid offered load to continue to increase the weight of, when offered load is lighter, then carry out such business, thereby play the effect of load balancing.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method for managing resource and system, to realize policy control and the service authorization adapting with offered load.
For solving above technical problem, the invention provides a kind of method for managing resource, the method comprises:
"Policy and Charging Rules Function (PCRF) knows that IP connects mobile management unit (MME) information of Access Network (IP-CAN) session association;
Described PCRF sets up session according to MME information and the described MME known;
Described PCRF is known network load information by the session of setting up from described MME, and carries out resource management according to described network load information.
Further, described PCRF knows that the step of the MME information of IP-CAN session association specifically comprises: IAD (S-GW) sends message, the MME information of wherein carrying IP-CAN session association to packet data gateway (P-GW); Described P-GW sends message, the MME information of wherein carrying described IP-CAN session association to described PCRF.
Further, described PCRF knows that the step of the MME information of IP-CAN session association specifically comprises:
The message that IAD (S-GW) or home subscriber server (HSS) initiatively send the MME information of carrying described IP-CAN session association is to described PCRF;
Or described PCRF sends the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to S-GW or HSS; Described S-GW or HSS return to the MME information of described IP-CAN session association according to described inquiry request.
Further, described PCRF knows that from described MME network load information specifically comprises: described PCRF sends offered load inquiry request to described MME; Described MME is according to described offered load inquiry request requester network load information, and to described PCRF, returns to the Query Result that comprises corresponding network load information.
Further, described PCRF knows that from described MME network load information specifically comprises: described PCRF issues offered load subscribe request to described MME; Described MME reports according to described offered load subscribe request periodicity or event the subscribing notification that comprises corresponding network load information.
Further, the MME information of described IP-CAN session association comprises IP-CAN session label information and MME identification information, described PCRF knows that from described MME, network load information, the method also comprises: described PCRF sets up the corresponding relation of MME information and described IP-CAN session label information; Described PCRF, according to the described corresponding relation of setting up, carries described MME IP-CAN session label information corresponding, that will inquire about in the inquiry request sending or subscribe request; Described MME inquires about corresponding offered load according to described IP-CAN session label information; Described IP-CAN session label information refers to identification information and/or APN (APN) information of terminal.
Further, when described PCRF learns the new MME information of described IP-CAN session association, set up session with described new MME, and the session of end and former MME.
For solving above technical problem, the present invention also provides a kind of resource management system, and this system comprises: "Policy and Charging Rules Function (PCRF) entity and mobile management unit (MME), wherein,
Described "Policy and Charging Rules Function (PCRF) entity comprises that MME information knows module, session management module and resource management module, wherein,
Described MME information is known module, for knowing mobile management unit (MME) information of IP-CAN session association;
Described session management module, for knowing that according to described MME information MME information and described MME that module is known set up session;
Described resource management module, knows network load information for the session of setting up by described session management module from described MME, and carries out resource management according to described network load information;
Described MME comprises Dialog processing module and offered load enquiry module, wherein:
Described Dialog processing module, for setting up session with described PCRF;
Described network load information maintenance module, for maintaining network load information, and the session of setting up by described Dialog processing module reports described network load information to described PCRF.
Further, described system also comprises IAD (S-GW) and packet data gateway (P-GW), and described S-GW is for sending message, the MME information of wherein carrying IP-CAN session association to described P-GW; The message that described P-GW sends for receiving described S-GW, and send message, the MME information of wherein carrying described IP-CAN session association to described PCRF; The MME information of described PCRF knows that module receives message that described P-GW sends to know described MME information.
Further, described system also comprises IAD (S-GW) or home subscriber server (HSS), described access network element or HSS are for initiatively sending message to described PCRF, wherein carry the MME information of described IP-CAN session association, the MME information of described PCRF knows that module receives message that described S-GW sends to know described MME information.
Further, described system also comprises IAD (S-GW) or home subscriber server (HSS), described access network element or HSS are for receiving the inquiry request of described PCRF, and to described PCRF, send message according to described inquiry request, wherein carry the MME information of described IP-CAN session association, the MME information of described PCRF is known module, for sending the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to described S-GW or HSS, and the message that receives described S-GW transmission is to know described MME information.
Further, the resource management module of described PCRF knows that from described MME network load information specifically comprises: to described MME, send offered load inquiry request, and receive the Query Result that described MME sends; The network load information maintenance module of described MME, according to described offered load inquiry request requester network load information, and returns to the Query Result that comprises corresponding network load information to described PCRF.
Further, the resource management module of described PCRF knows that from described MME network load information specifically comprises: to described MME, issue offered load subscribe request, and receive the subscribing notification that comprises Query Result that described MME reports; The network load information maintenance module of described MME is according to described offered load subscribe request, and periodicity or event report the subscribing notification that comprises corresponding network load information.
Further, the MME information of described IP-CAN session association comprises IP-CAN session label information and MME identification information, and the MME information of described PCRF knows that module is also for setting up the corresponding relation of MME information and described IP-CAN session label information; Described resource management module knows that according to described MME the corresponding relation that module is set up carries described MME IP-CAN session label information corresponding, that will inquire about in the inquiry request or the subscribe request that send; The offered load enquiry module of described MME, inquires about corresponding offered load according to described IP-CAN session label information; Described IP-CAN session label information refers to identification information and/or APN (APN) information of terminal.
Further, when the MME of described PCRF information knows that module learns the new MME information of described IP-CAN session association, upgrade the MME information corresponding with described IP-CAN session label information; When described session management module and described new MME set up session also for finishing the session with former MME, during corresponding IP-CAN conversation end, also for finishing the session with associated MME; The Dialog processing module of former MME, also for finishing the session with described PCRF.
In method for managing resource of the present invention and system, "Policy and Charging Rules Function (PCRF) is known mobile management unit (MME) information of IP-CAN session association, and sets up session with it; When PCRF need to be known network load condition, from MME, know network load information, and carry out resource management according to described network load information, thereby can realize service authorization and the policy control adapting with offered load.
Accompanying drawing explanation
Accompanying drawing explanation is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the system architecture of EPS;
Fig. 2 is the Organization Chart that PCRF expansion is generated strategy based on network load condition;
Fig. 3 is the schematic diagram of method for managing resource of the present invention;
Fig. 4 is user while adhering to, and P-GW (PCEF) informs the schematic flow sheet of information of the MME of PCRF user conversation association;
Fig. 5 is that PCRF is to MME requester network loading condition schematic flow sheet;
Fig. 6 is that PCRF issues the schematic flow sheet of offered load subscribing notification to MME;
Fig. 7 is that under handoff scenario, PCRF rebuilds the schematic flow sheet of session with new MME;
Fig. 8 is the modular structure schematic diagram of resource management system of the present invention;
Fig. 9 and Figure 10 are another two modular structure schematic diagrames of resource management system of the present invention;
Figure 11 is user while adhering to, and HSS informs the schematic flow sheet of information of the MME of PCRF user conversation association;
Figure 12 is user while adhering to, and S-GW (having BBERF) informs the schematic flow sheet of information of the MME of PCRF user conversation association.
Embodiment
The main thought "Policy and Charging Rules Function (PCRF) of method for managing resource of the present invention and system is known mobile management unit (MME) information of IP-CAN session association, and sets up session with it; When PCRF need to be known network load condition, from MME, know network load information, and carry out resource management according to described network load information, realize the service authorization and the policy control that adapt with offered load.
As shown in Figure 3, method for managing resource of the present invention comprises:
Step 301: "Policy and Charging Rules Function (PCRF) is known mobile management unit (MME) information of IP-CAN session association;
PCRF can be known by following two kinds of modes the MME information of IP-CAN session association:
Mode one: IAD (S-GW) sends message, the MME information of wherein carrying IP-CAN session association to packet data gateway (P-GW); Described P-GW sends message, the MME information of wherein carrying described IP-CAN session association to described PCRF.
Mode two: PCRF obtains the MME information of IP-CAN session association from S-GW:
IAD (S-GW) initiatively sends message, the MME information of wherein carrying described IP-CAN session association to described PCRF; Or PCRF sends the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to S-GW; Described S-GW returns to the MME information of described IP-CAN session association according to described inquiry request.
Mode three: PCRF obtains the MME information of IP-CAN session association from HSS:
The message that home subscriber server (HSS) initiatively sends the MME information of carrying described IP-CAN session association is to described PCRF; Or described PCRF sends the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to HSS; Described HSS returns to the MME information of described IP-CAN session association according to described inquiry request.
Step 302: described PCRF sets up session according to MME information and the described MME known;
Step 303: described PCRF is known network load information by the session of setting up from described MME, and carries out resource management according to described network load information.
Described PCRF knows that from described MME the mode of network load information has following two kinds:
PCRF inquiry: PCRF sends offered load inquiry request to MME; Described MME is according to described offered load inquiry request requester network load information, and to described PCRF, returns to the Query Result that comprises corresponding network load information.
PCRF subscribes to: PCRF issues offered load subscribe request to MME; Described MME is according to described offered load subscribe request, and periodicity or event report the subscribing notification that comprises corresponding network load information.
Particularly, the MME information of described IP-CAN session association comprises IP-CAN session label information and MME identification information (as MME ID); Described PCRF knows that from described MME, network load information, the method also comprises: described PCRF sets up the corresponding relation of MME information and described IP-CAN session label information; Described PCRF, according to the described corresponding relation of setting up, carries described MME IP-CAN session label information corresponding, that will inquire about in the inquiry request sending or subscribe request; Described MME inquires about corresponding offered load according to described IP-CAN session label information; Described IP-CAN session label information refers to identification information (as the IP address of Termination ID or terminal) and/or APN (APN) information of terminal.
When IP-CAN session switches, when PCRF learns the new MME information of described IP-CAN session association, set up session with described new MME, and the session of end and former MME.
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail, so that those skilled in the art can better understand the present invention also, can be implemented, but illustrated embodiment is not as a limitation of the invention.
When UE adheres to, the information that S-GW (having BBERF) informs MME to P-GW (having PCEF) (for example: MME ID), P-GW is when setting up IP-CAN session request to PCRF, with the information of upper MME (for example: MME ID), PCRF can select to set up session to this MME.As shown in Figure 4, PCRF knows that the process of MME information comprises:
Step 401:UE is attached on network;
Step 402:S-GW (BBERF) informs the information (MMEID) of MME to P-GW (PCEF), thereby P-GW can be known the MME information that the IP-CAN session of this UE is associated;
Step 403:P-GW (PCEF) and PCRF set up IP-CAN session, send in the message of PCRF the information (for example: MME ID and/or MME IP address) with MME;
Step 404:PCRF receives after message, preserves the corresponding relation of the UE MME associated with this UE, or the corresponding relation of the associated MME of the IP-CAN session of UE and this IP-CAN session;
The identification information of employing UE represents certain IP-CAN session of UE together with APN information.
Step 405:PCRF and MME set up session.
In Fig. 4, step 405 is selected to set up session to MME after knowing MME information, can certainly be when PCRF need to be known network load information, then set up session to MME.
User completes after IP-CAN session establishment, for example, for example, when PCRF is subject to inside (: operator configures) or external trigger (: receive the business information from AF); In the time of need to inquiring about the loading condition of current network, if now PCRF sets up session with MME, PCRF sends inquiry request to MME, in request message, can comprise the information such as UE ID and/or APN, MME returns to response to PCRF, comprises the result of inquiry in response message.As shown in Figure 5, the process that PCRF obtains network load information by inquiry mode comprises:
Step 501:IP-CAN session has been set up, and PCRF is subject to inside (for example: operator configures) or external trigger (for example: receive the business information from AF); Need to inquire about the loading condition of current network;
Step 502a: if now PCRF sets up session with MME, PCRF sends inquiry request to MME, can comprise the IP-CAN session label information such as UE ID and/or APN in request message;
Step 501b: if now PCRF not yet sets up session with MME, PCRF sets up session requester network loading condition to MME, in message with IP-CAN session label information such as UE ID and/or APN;
In step 501b, session establishment and offered load inquiry realize in same message, can certainly, after setting up session, inquire about whenever necessary to MME again.
Step 503:MME receives after request message, inquiry current network loading condition;
For example, MME can initiatively inquire about to NodeB, or MME also can, by subscribing to NodeB, be got the present load situation of network by NodeB active reporting.
It should be noted that, in actual applications, MME is after receiving inquiry request, can first inquire about the local present load situation of whether safeguarding this UE place network, if so, MME can directly obtain the present load situation of this network of preservation, otherwise, MME inquires about the present load situation of this network by base station, the result inquiring is returned to PCRF.
Wherein, the present load situation of the local network of preserving of MME can be that initiatively preserve to the MME that gives the correct time on MME base station, can be also that MME preserves when base station inquiry is obtained before this.
Step 504:MME returns to response to PCRF, comprises Query Result in response message;
Step 505:PCRF receives after Query Result, carries out resource management, carries out corresponding strategy or to corresponding service authorization.
When PCRF and the built vertical session of MME, and (for example: the signing or operator's configuration of user), can issue subscribe request to MME need MME active reporting network load condition when notice; When this subscription condition is triggered, MME reports subscribing notification to PCRF.When PCRF does not need MME to report subscribing notification, PCRF sends to subscribe to MME and cancels.As shown in Figure 6, this network load information reports process to comprise:
Step 601:PCRF issues offered load subscribe request to MME, comprising IP-CAN session label information, requires MME to report subscribing notification to PCRF;
For example, subscription condition can ask MME to report with some cycles, or, also can work as while there is certain network event and report.
Step 602: when subscription condition is triggered, MME is to PCRF report network load subscribing notification, comprising network load information;
Step 603: when PCRF does not need MME active reporting network load condition notice, PCRF sends offered load to MME and subscribes to cancellation.
In conversation procedure, during the scene switching (situation of relocation occurs MME), PCRF sets up session to Target MME (new MME), and PCRF deletes to Source MME (old MME) announcement session, as shown in Figure 7, the reconstruction of session and delete procedure comprise:
Step 701: for handoff scenario, P-GW (PCEF) reports PCRF by new MME ID;
Step 702:PCRF receives after message, preserves the information of new MME, carries out session association;
Step 703:PCRF sends message to Target MME, sets up session;
Step 704:PCRF finishes to Source MME announcement session;
For non-handoff scenario, when PCRF perceives UE deviated from network, during IP-CAN conversation end, notice MME session termination.
This inventive method is to 3GPP2, and the normal structures such as Wimax are also applicable.
When UE adheres to, PCRF perceives UE and adheres to and set up IP-CAN session, PCRF sends message to HSS, (for example: UE ID in message, carry the IP-CAN session information of UE, UE IP, the information such as APN), HSS receives after message, to PCRF, return to the MME information of the IP-CAN session association of this UE or this UE, PCRF can select to set up session to this MME.As shown in figure 11, PCRF knows that the process of MME information comprises:
Step 1101:UE is attached on network;
Step 1102:PCRF perceives UE and adheres to and set up IP-CAN session;
Step 1103:PCRF sends the inquiry request of this UE of inquiry or the associated MME information of this IP-CAN session to HSS;
Step 1104:HSS returns to response message, in message with this UE or the associated MME information of this IP-CAN session;
Step 1105:PCRF can set up session to MME, requester network loading condition.
In Figure 11, step 1105 is selected to set up session to MME after knowing MME information, can certainly be when PCRF need to be known network load information, then set up session to MME.
When UE adheres to, for example, when S-GW (having BBERF) sets up gateway control session to PCRF, with the information of upper MME (: MME ID), PCRF can select to set up session to this MME.As shown in figure 12, PCRF knows that the process of MME information comprises:
Step 1201:UE is attached on network;
Step 1202:S-GW (BBERF) and PCRF set up gateway control session, send in the message of PCRF the information (for example: MME ID and/or MME IP address) with MME;
Step 1203:PCRF receives after message, preserves the corresponding relation of the UE MME associated with this UE, or the corresponding relation of the associated MME of the IP-CAN session of UE and this IP-CAN session;
The identification information of employing UE represents certain IP-CAN session of UE together with APN information.
Step 1204:PCRF and MME set up session.
In Figure 12, step 1204 is selected to set up session to MME after knowing MME information, can certainly be when PCRF need to be known network load information, then set up session to MME.
In order to realize above method, the present invention also provides a kind of resource management system, and as shown in Figure 8, this system comprises: "Policy and Charging Rules Function (PCRF) entity and mobile management unit (MME), wherein,
Described "Policy and Charging Rules Function (PCRF) entity comprises that MME information knows module, session management module and resource management module, wherein,
Described MME information is known module, for knowing mobile management unit (MME) information of IP-CAN session association;
Described session management module, for knowing that according to described MME information MME information and described MME that module is known set up session;
Described resource management module, knows network load information for the session of setting up by described session management module from described MME, and carries out resource management according to described network load information;
Described MME comprises Dialog processing module and offered load enquiry module, wherein:
Described Dialog processing module, for setting up session with described PCRF;
Described network load information maintenance module, for maintaining network load information, and the session of setting up by described Dialog processing module reports described network load information to described PCRF.
Alternatively, as shown in Figure 9, described system also comprises IAD (S-GW) and packet data gateway (P-GW), and described S-GW is for sending message, the MME information of wherein carrying IP-CAN session association to described P-GW; The message that described P-GW sends for receiving described S-GW, and send message, the MME information of wherein carrying described IP-CAN session association to described PCRF; The MME information of described PCRF knows that module receives message that described P-GW sends to know described MME information.
Alternatively, as shown in figure 10, described system also comprises IAD (S-GW) or home subscriber server (HSS), described access network element or HSS are for initiatively sending message to described PCRF, wherein carry the MME information of described IP-CAN session association, the MME information of described PCRF knows that module receives message that described S-GW sends to know described MME information.
Alternatively, described system also comprises IAD (S-GW) or home subscriber server (HSS), described access network element or HSS are for receiving the inquiry request of described PCRF, and to described PCRF, send message according to described inquiry request, wherein carry the MME information of described IP-CAN session association, the MME information of described PCRF is known module, for sending the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to described S-GW or HSS, and the message that receives described S-GW transmission is to know described MME information.
Particularly, the resource management module of described PCRF knows that from described MME network load information specifically comprises: to described MME, send offered load inquiry request, and receive the Query Result that described MME sends; The network load information maintenance module of described MME, according to described offered load inquiry request requester network load information, and returns to the Query Result that comprises corresponding network load information to described PCRF.
Particularly, the resource management module of described PCRF knows that from described MME network load information specifically comprises: to described MME, issue offered load subscribe request, and receive the subscribing notification that comprises Query Result that described MME reports; The network load information maintenance module of described MME is according to described offered load subscribe request, and periodicity or event report the subscribing notification that comprises corresponding network load information.
The MME information of described IP-CAN session association comprises IP-CAN session label information and MME identification information, and the MME information of described PCRF knows that module is also for setting up the corresponding relation of MME information and described IP-CAN session label information; Described resource management module knows that according to described MME the corresponding relation that module is set up carries described MME IP-CAN session label information corresponding, that will inquire about in the inquiry request or the subscribe request that send; The offered load enquiry module of described MME, inquires about corresponding offered load according to described IP-CAN session label information; Described IP-CAN session label information refers to identification information and/or APN (APN) information of terminal.
When the MME of described PCRF information knows that module learns the new MME information of described IP-CAN session association, upgrade the MME information corresponding with described IP-CAN session label information; When described session management module and described new MME set up session also for finishing the session with former MME, during corresponding IP-CAN conversation end, also for finishing the session with associated MME; The Dialog processing module of former MME, also for finishing the session with described PCRF.
Claims (10)
1. a method for managing resource, is characterized in that, the method comprises:
"Policy and Charging Rules Function PCRF entity knows that IP connects the mobile management unit MME information of Access Network IP-CAN session association;
Described PCRF entity is set up session according to MME information and the described MME known;
Described PCRF entity is known network load information by the session of setting up from described MME, and carries out resource management according to described network load information;
Wherein, described PCRF entity knows that the step of the MME information of IP-CAN session association specifically comprises: IAD S-GW sends message, the MME information of wherein carrying IP-CAN session association to packet data gateway P-GW; Described P-GW sends message, the MME information of wherein carrying described IP-CAN session association to described PCRF entity;
Or described PCRF entity knows that the step of the MME information of IP-CAN session association specifically comprises:
IAD S-GW or home subscriber server HSS initiatively send the message of the MME information of carrying described IP-CAN session association to described PCRF entity;
Or described PCRF entity sends the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to S-GW or HSS; Described S-GW or HSS return to the MME information of described IP-CAN session association according to described inquiry request.
2. the method for claim 1, is characterized in that: described PCRF entity knows that from described MME network load information specifically comprises: described PCRF entity sends offered load inquiry request to described MME; Described MME is according to described offered load inquiry request requester network load information, and returns to described PCRF entity the Query Result that comprises corresponding network load information.
3. the method for claim 1, is characterized in that: described PCRF entity knows that from described MME network load information specifically comprises: described PCRF entity issues offered load subscribe request to described MME; Described MME reports according to described offered load subscribe request periodicity or event the subscribing notification that comprises corresponding network load information.
4. method as claimed in claim 2 or claim 3, it is characterized in that: the MME information of described IP-CAN session association comprises IP-CAN session label information and MME identification information, described PCRF entity knows that from described MME, network load information, the method also comprises: described PCRF entity is set up the corresponding relation of MME information and described IP-CAN session label information; Described PCRF entity, according to the described corresponding relation of setting up, carries described MME IP-CAN session label information corresponding, that will inquire about in the offered load inquiry request sending or subscribe request; Described MME inquires about corresponding offered load according to described IP-CAN session label information; Described IP-CAN session label information refers to identification information and/or the APN APN information of terminal.
5. the method for claim 1, is characterized in that: when described PCRF entity learns the new MME information of described IP-CAN session association, set up session with described new MME, and the session of end and former MME.
6. a resource management system, is characterized in that, this system comprises: "Policy and Charging Rules Function PCRF entity and mobile management unit MME, wherein,
Described "Policy and Charging Rules Function PCRF entity comprises that MME information knows module, session management module and resource management module, wherein,
Described MME information is known module, for knowing the mobile management unit MME information of IP-CAN session association;
Described session management module, for knowing that according to described MME information MME information and described MME that module is known set up session;
Described resource management module, knows network load information for the session of setting up by described session management module from described MME, and carries out resource management according to described network load information;
Described MME comprises Dialog processing module and network load information maintenance module, wherein:
Described Dialog processing module, for setting up session with described PCRF entity;
Described network load information maintenance module, for maintaining network load information, and the session of setting up by described Dialog processing module reports described network load information to described PCRF entity;
Wherein, described system also comprises IAD S-GW and packet data gateway P-GW, and described S-GW is for sending message, the MME information of wherein carrying IP-CAN session association to described P-GW; The message that described P-GW sends for receiving described S-GW, and send message, the MME information of wherein carrying described IP-CAN session association to described PCRF entity; The MME information of described PCRF entity knows that module receives message that described P-GW sends to know described MME information;
Or, described system also comprises IAD S-GW or home subscriber server HSS, described IAD or HSS are for initiatively sending message to described PCRF entity, wherein carry the MME information of described IP-CAN session association, the MME information of described PCRF entity knows that module receives message that described S-GW sends to know described MME information;
Or, described system also comprises IAD S-GW or home subscriber server HSS, described IAD or HSS are for receiving the inquiry request of described PCRF entity, and to described PCRF entity, send message according to described inquiry request, wherein carry the MME information of described IP-CAN session association, the MME information of described PCRF entity is known module, for sending the inquiry request of the IP-CAN session label information of carrying the MME information association that will inquire about to described S-GW or HSS, and the message that receives described S-GW transmission is to know described MME information.
7. system as claimed in claim 6, is characterized in that: the resource management module of described PCRF entity knows that from described MME network load information specifically comprises: to described MME, send offered load inquiry request, and receive the Query Result that described MME sends; The network load information maintenance module of described MME, according to described offered load inquiry request requester network load information, and returns to described PCRF entity the Query Result that comprises corresponding network load information.
8. system as claimed in claim 6, it is characterized in that: the resource management module of described PCRF entity knows that from described MME network load information specifically comprises: to described MME, issue offered load subscribe request, and receive the subscribing notification that comprises Query Result that described MME reports; The network load information maintenance module of described MME is according to described offered load subscribe request, and periodicity or event report the subscribing notification that comprises corresponding network load information.
9. system as claimed in claim 7 or 8, it is characterized in that: the MME information of described IP-CAN session association comprises IP-CAN session label information and MME identification information, the MME information of described PCRF entity knows that module is also for setting up the corresponding relation of MME information and described IP-CAN session label information; Described resource management module knows that according to described MME information the corresponding relation that module is set up carries described MME IP-CAN session label information corresponding, that will inquire about in the offered load inquiry request sending or subscribe request; The network load information maintenance module of described MME, inquires about corresponding offered load according to described IP-CAN session label information; Described IP-CAN session label information refers to identification information and/or the APN APN information of terminal.
10. system as claimed in claim 6, is characterized in that: when the MME of described PCRF entity information knows that module learns the new MME information of described IP-CAN session association, upgrade the MME information corresponding with IP-CAN session label information; When described session management module and described new MME set up session also for finishing the session with former MME, during corresponding IP-CAN conversation end, also for finishing the session with associated MME; The Dialog processing module of former MME, also for finishing the session with described PCRF entity.
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| CN109819486B (en) * | 2017-11-21 | 2022-04-08 | 中兴通讯股份有限公司 | Method and device for determining bearing identification and storage medium |
| CN110048951B (en) * | 2018-01-16 | 2020-11-27 | 中国移动通信有限公司研究院 | PCF addressing method and device, equipment and storage medium |
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| CN101335675A (en) * | 2008-01-09 | 2008-12-31 | 中兴通讯股份有限公司 | Policy control method |
| CN102238521A (en) * | 2010-04-27 | 2011-11-09 | 中兴通讯股份有限公司 | Service authorization method, device and system |
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| CN101335675A (en) * | 2008-01-09 | 2008-12-31 | 中兴通讯股份有限公司 | Policy control method |
| CN102238521A (en) * | 2010-04-27 | 2011-11-09 | 中兴通讯股份有限公司 | Service authorization method, device and system |
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