WO2011134320A1

WO2011134320A1 - Method, system and device for authorization request

Info

Publication number: WO2011134320A1
Application number: PCT/CN2011/071700
Authority: WO
Inventors: 周晓云; 宗在峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-04-27
Filing date: 2011-03-10
Publication date: 2011-11-03
Also published as: CN102238698A; CN102238698B

Abstract

The present invention discloses a method, system and device for authorization request. The method includes that: a user equipment (UE) establishes an IP-Connectivity Access Network (IP-CAN) session via a home base station (S702) which is connected to a 3GPP core network by a signed fixed-network line; a Policy and Charging Rules Function (PCRF) selects an Interwork-Policy and Charging Rules Function (I-PCRF) for the IP-CAN session, wherein, the PCRF selects the same I-PCRF for the IP -CAN sessions established by the same signed fixed-network line (S704); and the PCRF requests the selected I-PCRF to perform Quality of service (Qos) authorization for the IP-CAN session (S706). With the present invention, Qos control can be performed for all the UEs accessing home base stations, enabling that the overall Qos requirement does not exceed the Qos which can be provided by signed fixed-network lines accessed by the home base stations.

Description

The present invention relates to the field of communications, and in particular to an authorization request method, system and apparatus. BACKGROUND OF THE INVENTION The Evolved Packet System (EPS) of the 3rd Generation Partnership Project (3GPP) is evolved by the Evolved Universal Terrestrial Radio Access Network (referred to as Evolved Universal Terrestrial Radio Access Network). E-UTRAN), Mobility Management Entity (MME), Serving Gateway (S-GW), Packet Data Network Gateway (P-GW) FIG. 1 is a schematic diagram of an architecture of a HeNB accessing an EPS in a non-roaming scenario according to the related art, and FIG. 2 is a schematic diagram of a home routing roaming scenario according to the related art. Schematic diagram of the architecture of the HeNB accessing the EPS, and FIG. 3 is a schematic diagram of the architecture of the HeNB accessing the EPS in the local grooming roaming scenario according to the related art. The structure of the EPS will be described below with reference to Fig. 1, Fig. 2 and Fig. 3.

The MME is connected to the EUTRAN, the S-GW, and the Home evolved NodeB (HeNB) gateway (HeNB GW), and is responsible for control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management. Related work; S-GW is an access gateway device connected to E-UTRAN, which forwards data between E-UTRAN and P-GW, and is responsible for buffering paging waiting data; P-GW is EPS and packet Data Network (referred to as PDN) The border gateway of the network, responsible for PDN access and forwarding data between EPS and PDN. If the EPS system supports the Policy and Charging Control (PCC), the Policy and Charging Rules Function (PCRF) performs the policy and charging rules. The Rx is connected to an application function (Application Function, abbreviated as AF) in the service network protocol of the Internet Protocol (IP), and obtains service information, which is used to generate service information of the PCC policy. When the S5 interface between the S-GW and the P-GW uses the GTP protocol, the P-GW resides in the Policy and Charging Enforcement Function (PCEF), between the PCRF and the P-GW. Exchange information through the Gx interface, responsible for initiating the establishment, modification, and release of bearers. Quality of Service (QoS) for service data, and charging control. When the S5 interface of the S-GW and the P-GW uses Proxy Mobile IP (PMIP), the S-GW hosts the Bearer Binding and Event Report Function (Bearer Binding and Event Report Function, It is abbreviated as BBERF), and the S-GW and the PCRF exchange information through the Gxc interface. The BBERF is responsible for initiating the establishment, modification and release of the bearer to ensure the service quality of the service data, and the PCEF performs the charging control.

The EPS supports the access of the HeNB, which is a small, low-power base station deployed in indoor places such as homes and offices. Closed Subscriber Group (CSG) is a new concept introduced after the introduction of home base stations. Usually a family or a user inside an enterprise forms a closed user group, which is identified by a CSG ID. The home base station for the user's monthly service in this closed subscriber group has the same CSG ID. When a closed subscriber group is served by only one home base station, the closed subscriber group can also directly identify the home base station identity (e.g., BS ID). At the will of the home base station manager, the CSG user and/or the non-CSG user can distinguish different levels, and the priority of the service is different, and the quality of the service and the service category can be different. By signing with the operator, the user can access the home base station corresponding to multiple closed user groups, for example, the user's office, home, and the like. The concept of allowing a closed user group list to be introduced is therefore introduced. This list is stored in the user's terminal and the user data server on the network side. There are three usage modes for home base stations: closed mode, mixed mode, and open mode. When the home base station is in the closed mode, only the CSG subscription user to which the home base station belongs can access the base station and enjoy the services provided by the base station. When the home base station is in the open mode, any operator subscription subscriber can access the base station, and the home base station at this time is equivalent to the macro base station. When the home base station is in the hybrid mode, any operator subscription or roaming user is also allowed to access, but different levels are classified according to whether the user subscribes to the CSG, that is, the user who signs the CSG is using the hybrid home. Base stations have higher service priorities and enjoy better quality of service and service categories. When the user performs initial access, the user data server on the network side sends the closed user group that the user subscribes to allow access to the mobility management entity of the core network. The core network mobility management entity will use this information to perform access control on the UE. If the UE accesses the core network from an unlicensed closed mode home base station, the core network will deny access to such users. The HeNB usually accesses the core network of the EPS through a leased fixed line. To ensure the security of the access, a security gateway (SeGW) is shielded in the core network. The data between the HeNB and the SeGW is encapsulated by IPSec. The HeNB can directly connect to the MME and the S-GW of the core network through the IPSec tunnel established by the HeNB and the SeGW, and can also connect to the MME and the S-GW through the HeNB GW. At the same time, in order to implement management of the HeNB, a Home eNodeB Management System (HeMS) is introduced. „ The QoS of the fixed line that is accessed by the HeNB is usually the owner of the HeNB and the fixed network operator. Therefore, when the 3GPP UE usually accesses the 3GPP core network access service, the required QoS cannot exceed the subscription QoS of the fixed network line that the fixed network operator can provide. Otherwise, the QoS of the UE access service There is no guarantee, especially Guaranteed Bitrate (GBR). Therefore, for 3GPP networks, the total QoS requirement for service access of all UEs accessed through the HeNB must not exceed that of the HeNB. QoS guarantee for fixed line subscription. jt匕, Universal Mobile Telecommunications System (UMTS) also supports access to home base station HNB (Home NodeB). Figure 4 is a non-roaming scenario according to the related art. Schematic diagram of the architecture of the HNB accessing the UMTS, and FIG. 5 is an architecture of the HNB accessing the UMTS in the home routing roaming scenario according to the related art. 6 is a schematic diagram of an architecture of an HNB accessing UMTS in a local grooming roaming scenario according to the related art. The architectures in FIG. 4, FIG. 5, and FIG. 6 are similar to the architectures of FIG. 1, FIG. 2, and FIG. 3, except that , using the Serving General packet radio service support node (SGSN) instead of the S-GW, using the gateway general packet radio service support node

(Gateway General Packet Radio Service Supporting Node, GGSN for short) replaced P-GW. In the case where the home base station accesses through the contracted fixed line, it is necessary to consider a scenario in which multiple home base stations (for example, HeNB, HNB) access the 3GPP core network through a contracted fixed line. At this time, for the 3GPP network, all user equipments accessed through the multiple home base stations must be controlled.

The total QoS requirement for service access (User Equipment, UE for short) does not exceed the subscription QoS guarantee of the same fixed line that the multiple home base stations access. In the related art, when different user equipments sharing the same fixed-line line are accessed by one or more home base stations, the network side may select different PCRFs for each user equipment, thus causing related technologies in the related art. Unable to control sharing the same contracted fixed line but chose different The total service access QoS requirement of the user equipment of the PCRF does not exceed the signing of the contracted fixed network line.

QoS guarantee. SUMMARY OF THE INVENTION A primary object of the present invention is to provide an authorization request scheme to solve at least the above problems. According to an aspect of the present invention, an authorization request method is provided, including: a user equipment establishes a network protocol to connect to an access network IP-CAN session through a home base station, wherein the home base station is connected to the third generation through a contracted fixed network line The partner plan 3GPP core network; the policy and charging rule function PCRF selects an interworking policy and charging rule function I-PCRF for the IP-CAN session, wherein the PCRF is an IP established through the contracted fixed line The CAN session selects the same I-PCRF; the PCRF requests the I-PCRF to perform Quality of Service QoS authorization for the IP-CAN session. Preferably, before the PCRF selects the I-PCRF for the IP-CAN session, the method further includes: a policy and charging execution function PCEF or a load binding function and an event 4 report function BBERF receiving a request to establish the IP a message of the CAN session, wherein the message carries broadband connection information of the subscribed fixed network line through which the IP-CAN session passes; the PCEF or the BBERF sends the broadband connection information to the PCRF . Preferably, before the PCRF selects the I-PCRF for the IP-CAN session, the method further includes: the PCEF or the BBERF receiving a message requesting to establish an IP-CAN session, where the message carries the user equipment Closing user group CSG information; the PCEF or the BBERF transmitting the closed subscriber group CSG information to the PCRF. Preferably, in the case that the PCEF or the BBERF is located in a visited network, the PCRF is a visited policy and a charging rule function V-PCRF; the V-PCRF will use the broadband of the subscription fixed line The connection information and the closed subscriber group CSG information are sent to the I-PCRF. Preferably, in a case where the PCEF is located in the home network, the PCRF is a home visit policy and a charging rule function H-PCRF; the PCEF sends information about the visited network currently roamed by the user equipment to the The H-PCRF sends the broadband connection information of the subscription fixed network line and the closed subscriber group CSG information to the I-PCRF of the visited network according to the information of the visited network. Preferably, the correspondence between the I-PCRF and the fixed network operator is pre-configured on the PCRF, and the PCRF obtains the broadband connection information of the subscribed fixed network line and the corresponding relationship as the IP. - The CAN session selects the I-PCRF. Preferably, the broadband connection information includes at least one of the following: a public IP address of the home gateway RGW connected to the home base station, a line identifier of the RGW, and a username of the home base station owner and the fixed network operator. Preferably, the I-PCRF is an independent functional network element or a function enhancement of the BPCF. According to another aspect of the present invention, a method for requesting authorization is provided, including: an interworking policy and a charging rule function, a request for QoS information and/or QoS information of an I-PCRF receiving policy and charging rule function PCRF Identifying; the I-PCRF request identifier of the QoS information and/or QoS information requests QoS from the broadband policy control framework BPCF, wherein the QoS of the IP-CAN session established through the same contracted fixed line The authorization request is from the same I-PCRF. Preferably, before the I-PCRF receives the request identifier of the QoS information and/or QoS information of the PCRF, the method further includes: the PCRF formulating or updating the QoS information; and the PCRF is configured to: And the indication information is sent to the I-PCRF, where the indication information is used to instruct the I-PCRF to perform processing on at least one of the following: the allocation, the update, and the QoS information includes: ARP, guaranteed rate GBR. Preferably, before the I-PCRF receives the request identifier of the QoS information and/or QoS information of the PCRF, the method further includes: the PCRF determining to release a bandwidth resource of the authorized QoS information; the PCRF determining The request identifier and the indication information of the QoS information of the bandwidth resource are sent to the I-PCRF, where the indication information is used to indicate that the I-PCRF releases the bandwidth resource. Preferably, the I-PCRF requesting the QoS information and the request identifier of the QoS information to request the QoS authorization to the BPCF includes: the I-PCRF to the BPCF if the indication information is used to indicate that the resource is allocated Requesting to allocate a bandwidth resource of the same size as the GBR in the QoS information; in the case that the indication information is used to indicate that the resource is updated, the I-PCRF requests the BPCP to add or release two QoS information before and after the update. The GBR has the same bandwidth resource size. Preferably, the requesting, by the I-PCRF, the release of the bandwidth resource from the BPCF includes: the I-PCRF requesting the BPCF to release a bandwidth resource of the same size as the GBR in the QoS information corresponding to the request identifier of the received QoS information. Preferably, after the request identifier of the QoS information and/or QoS information is requested by the I-PCRF to the broadband policy control framework BPCF, the method further includes the location where the BPCF passes in the IP-CAN session. Returning a rejection message to the I-PCRF if the remaining available bandwidth resource of the contracted fixed network line is smaller than the bandwidth resource requested by the I-PCRF request; otherwise, the BPCF is allocated with the I-PCRF request Allocate or increase bandwidth resources and return an accept message. Preferably, after the I-PCRF receives the reject message, the method further includes: determining, by the I-PCRF, whether the QoS information can preempt the subscribed fixed network line as other QoS information according to at least one of the following: Allocated resources: Closed user group CSG information obtained by the PCRF, ARP in the QoS information. Preferably, if the result of the determination is that the resource that the subscription fixed network line has allocated for other QoS information is preempted, the method further includes: the I-PCRF instructing the BPCF to release the bandwidth of the preempted other QoS information. Resource: after the BPCF releases the resource, the I-PCRF again instructs the BCPF to allocate or increase a bandwidth resource that is the same size as the first requested or increased bandwidth resource; the BPCF allocates or increases bandwidth resources, and returns to accept Message. Preferably, in a case that the result of the determination is that the resource that the subscription fixed network line has allocated for the other QoS information is preempted, the method further includes: the I-PCRF sending a message to the PCRF, where the message carries Pre-empting the request identifier of the other QoS information; the PCRF sends a message to the BBERF and/or the PCEF, requesting to delete or deactivate a policy rule corresponding to the request identifier of the QoS information; or, the PCRF update The request for the QoS information identifies a corresponding policy rule, and sends the updated policy rule to the BBERF and/or the PCEF. Preferably, after the BPCF returns the accept message, the method further includes: the I-PCRF returns an acknowledgement message to the PCRF, and the PCRF sends a policy rule including the QoS information to the BBERF and/or the PCEF. Preferably, the I-PCRF is an independent functional network element or is a function enhancement of the BPCF. According to still another aspect of the present invention, an authorization request method is provided, including: a broadband policy control framework BPCF receiving a policy and charging rule function PCRF is QoS information authorized by an IP-CAN session; and the BPCF performs the QoS information according to the QoS information. QoS authorization. Preferably, before the BPCF receives the QoS information that the PCRF is the IP-CAN session, the method further includes: the PCRF formulating or updating QoS information, where the QoS information The information includes an allocation retention priority ARP, a guarantee rate GBR, and the PCRF sends the QoS information and the indication information to the BPCF, where the indication information is used to indicate that the BCPF is allocated according to the GBR or Update bandwidth resources. Preferably, the BPCF is configured according to at least one of the following when the remaining available bandwidth resources of the subscribed fixed network line that the IP-CAN session passes are smaller than the bandwidth resources that the PCRF requests to allocate or increase. Determining whether the QoS information can preempt the bandwidth resources allocated by the subscribed fixed network line for other QoS information: the closed closed subscriber group CSG information and the ARP in the QoS information. Preferably, the BPCF sends a message to the PCRF, where the message carries a preempted message, if the BPCF determines that the bandwidth of the subscribed fixed network line has been allocated for other QoS resources. The request identifier of the other QoS information; the PCRF sends a message to the BBERF and/or the PCEF, requesting to delete or deactivate the policy rule corresponding to the request identifier; or the PCRF updates the policy rule corresponding to the request identifier, And the updated policy rule is sent to the BBERF and/or the PCEF. Preferably, in the case that the BPCF determines that the bandwidth resources that the subscribed fixed network line has allocated for other QoS are preempted, the method further includes: after the BPCF releases the bandwidth resources of the preempted other QoS information; The BPCF allocates bandwidth resources allocated or added by the PCRF request to the QoS information, and returns an accept message. According to an aspect of the present invention, an interworking policy and a charging rule function are also provided.

The I-PCRF includes: a receiving module, configured to receive a policy and charging rule function, the PCRF is a request identifier of the QoS information and/or QoS information authorized by the IP-CAN session; and the requesting module is configured to be configured according to the QoS information and/or The request identifier of the QoS information requests authorization from the broadband policy control framework BPCF, wherein the QoS authorization request of the IP-CAN session established through the same contracted fixed line is from the same I-PCRF. Preferably, the requesting module is configured to send, to the BPCF, the guaranteed bandwidth GBR required to be allocated in the QoS authorization request and the indication information that is used to indicate that the BPCF allocates and releases the resource. Preferably, the method further includes: a determining module, configured to determine, according to at least one of the following, whether the QoS information can preempt the subscription fixed network line after receiving the message sent by the BPCF to indicate that the bandwidth resource is refused to be allocated Resources allocated by other QoS information: obtained by the PCRF The closed user group CSG information and the ARP in the QoS information; the requesting module is further configured to: when the determination result is yes, instruct the BPCF to release the bandwidth resource of the preempted other QoS information; And after the BPCF releases the resource, the BCPF is again instructed to allocate or increase the bandwidth resource of the same size as the first request allocated or increased bandwidth resource. According to another aspect of the present invention, an authorization request system is further provided, including: a user equipment, a home base station, and a policy and charging rule function PCRF, the system further comprising: an interworking policy and a charging rule function I-PCRF, wherein The user equipment is configured to establish a network protocol connection access network IP-CAN session by using the home base station, where the home base station is connected to a third generation partnership project 3GPP core network by using a contracted fixed network line; And the charging rule function PCRF selects an interworking policy and a charging rule function I-PCRF for the IP-CAN session, wherein the PCRF selects the same I-PCRF for the IP-CAN session established through the contracted fixed line; The PCRF is further configured to request the I-PCRF to perform quality of service QoS authorization for the IP-CAN session. Preferably, the method further includes: a policy and charging execution function PCEF or a load binding and event 4 reporting function BBERF, wherein the policy and charging execution function PCEF or the load binding and event 4 reporting function BBERF is used. Receiving a message requesting to establish the IP-CAN session, where the message carries broadband connection information of the subscribed fixed network line through which the IP-CAN session is established; and transmitting the broadband to the PCRF Connection information. Preferably, the PCEF or the BBERF is further configured to receive a message requesting to establish an IP-CAN session, where the message carries closed subscriber group CSG information of the user equipment; the PCEF or the BBERF is further used. The closed subscriber group CSG information is sent to the PCRF. With the present invention, the user equipment is requested to establish an IP-CAN session through the home base station; the PCRF selects an I-PCRF for the IP-CAN session according to the contracted fixed network line to which the IP-CAN session belongs, where the belongs to the same contracted fixed network line. The IP-CAN session selects the same I-PCRF; the I-PCRF initiates an authorization request for the IP-CAN session to the BPCF. The problem that the total requirement of the user equipment that cannot share the same contracted fixed line but the different PCRFs is selected does not exceed the subscription QoS guarantee of the contracted fixed line, and all the accesses through the home base station can be solved. The UE performs QoS control so that the total QoS requirement does not exceed the QoS that the fixed-line line that the home base station accesses can provide. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a schematic structural diagram of a HeNB accessing an EPS in a non-roaming scenario according to the related art; FIG. 2 is a schematic structural diagram of a HeNB accessing an EPS in a home routing roaming scenario according to the related art; FIG. 4 is a schematic diagram of an architecture of an HNB accessing an UMTS in a non-roaming scenario according to the related art; FIG. 5 is a schematic diagram of a home routing roaming scenario according to the related art; FIG. 6 is a schematic diagram of an architecture of an HNB accessing a UMTS in a local grooming roaming scenario according to the related art; FIG. 7 is a flowchart of an authorization requesting method according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of a HeNB accessing an EPS in a home route roaming scenario according to an embodiment of the present invention; FIG. 10 is a schematic diagram of a local device in accordance with an embodiment of the present invention; FIG. 11 is a schematic structural diagram of an HNB accessing a UMTS in a non-roaming scenario according to an embodiment of the present invention; FIG. 12 is a schematic structural diagram of an HNB accessing a UMTS in a home route roaming scenario according to an embodiment of the present invention; 13 is a schematic structural diagram of an HNB accessing a UMTS in a local grooming roaming scenario according to an embodiment of the present invention; FIG. 14 is a flowchart according to Embodiment 1 of the present invention; FIG. 15 is a flowchart according to Embodiment 2 of the present invention; 16 is a flowchart according to a third embodiment of the present invention; FIG. 17 is a flowchart according to a fourth embodiment of the present invention; FIG. 18 is a flowchart according to a fifth embodiment of the present invention; and FIG. 19 is a flowchart according to Embodiment 6 of the present invention; Figure 20 is a flow chart according to Embodiment 7 of the present invention; Figure 21 is a flow chart according to Embodiment 8 of the present invention; Figure 22 is a flow chart according to Embodiment 9 of the present invention; Figure 23 is a flowchart according to Embodiment 10 of the present invention; Figure 24 is a flowchart of an embodiment 11 of the present invention; Figure 25 is a flow chart of an embodiment of the present invention; Figure 26 is a block diagram of an I-PCRF according to an embodiment of the present invention; 27 is a structural block diagram of a preferred I-PCRF according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In the following embodiments, the Interwork-Policy and Charing Rule Function (I-PCRF) is introduced. The PCRF will control the broadband policy in the fixed network through I-PCRF.

4 truss BPCF (Broadband Policy Control Framework) implements interaction. The I-PCRF can be deployed independently in the mobile operator network to which the home base station (HeNB, HNB) owner belongs, or can be used as a function enhancement of the BPCF, and deployed in the fixed network line leased by the home base station owner. It belongs to the network of fixed network operators. Multiple I-PCRFs can be deployed for the same carrier network. QoS of all IP-CAN sessions established by 3GPP UEs accessing the core network through the same home base station or multiple home base stations and the multiple home base stations are connected by an I-PCRF BPCF request. (For the deployment of ICMPF for BPCF function enhancement, it can be understood that the PCRF requests QoS authorization from a BPCF). FIG. 7 is a flowchart of an authorization request method according to an embodiment of the present invention. As shown in FIG. 7, the process includes the following steps: Step S702: A UE requests to establish an IP-CAN session through a home base station (eg, HeNB, HNB), where The home base station is connected to the 3GPP core network through the contracted fixed network line; in step S704, the PCRF selects an I-PCRF for the IP Connectivity Access Network (IP-Access) network session (IP-CAN), wherein the same contract is adopted. The IP-CAN session established by the fixed line selects the same I-PCRF; step S706, the PCRF requests the selected I-PCRF to perform QoS authorization for the IP-CAN session. Since the PCRF selected for the IP-CAN session established by the same UE may be different, the PCRF selected for the IP-CAN session established by different UEs may also be different. However, through the above steps S702 to S704, since the affiliated fixed network lines to which the PCRF is reported are the same during the IP-CAN session establishment process, each PCRF will select the same I- for all of these IP-CANs. PCRF. The PCRF may send the broadband connection information of the subscription fixed network line to the I-PCRF. The PCRF can obtain broadband connection information in the following ways:

The PCEF or BBERF receives a message requesting to establish an IP-CAN session, where the message carries the broadband connection information of the subscribed fixed network line through which the IP-CAN session is established; the PCEF or BBERF sends the broadband connection information to the PCRF. Preferably, the PCRF may also send the CSG information of the UE to the I-PCRF. In this way, the I-PCRF can learn the access mode of the HeNB accessed by the UE, and the membership relationship between the UE and the CSG to which the home base station belongs. After the BPCF rejects the I-PCRF QoS request according to the current resource condition of the contracted fixed line, the I-PCRF will according to the CSG information and/or the user of the IP-CAN session that initiated the QoS request. Priority, etc. make further decisions. It is decided to release resources of non-CSG users or lower priority users for distribution to CSG users or higher priority users. FIG. 8, FIG. 9, and FIG. 10 are schematic diagrams showing the architecture of a 3GPP UE accessing through a HeNB in a non-roaming scenario, a home routing roaming scenario, and a local grooming roaming scenario, respectively, according to an embodiment of the present invention. FIG. 11 , FIG. 12 , and FIG. 13 are schematic diagrams showing the architecture of a 3GPP UE accessing through an HNB in a non-roaming scenario, a home routing roaming scenario, and a local grooming roaming scenario, respectively, according to an embodiment of the present invention. Due to the introduction of the functional network element of the I-PCRF, the PCRF will interact with the BPCF through the I-PCRF. The function network element is deployed in an operator network to which the owner of the home base station (HeNB, HNB) belongs. Thus, for the roaming scenarios of Figures 9, 10, 12, and 13, the I-PCRF is deployed on the visited network. Multiple I-PCRFs can be deployed in the same carrier network. The PCRF selected by the IP-CAN established by all the UEs that access the same home base station or access multiple home base stations but the multiple home base stations share the fixed network subscription line (including the home PCRF for short, H-PCRF, visited place) The PCRF is abbreviated as V-PCRF. It may be different, so all these PCRFs will have to pass the same I-PCRF and BPCRF, so that the I-PCRF will be based on the current QoS status of the contracted fixed line, for all currently accessed. The UE's service access performs QoS control. For the architecture of Figure 9, when the General Tunnel Protocol (GTP) protocol is used between the S-GW and the P-GW, the H-PCRF directly interacts with the I-PCRF, and the I-PCRF further interacts with the BPCF. Interact. When the PMIPv6 protocol is used between the S-GW and the P-GW, the H-PCRF interacts with the V-PCRF, and the V-PCRF interacts with the I-PCRF, and the I-PCRF further interacts with the BPCF. The embodiments under the architectures of Figs. 8 to 13 will be separately described below. Embodiment 1 FIG. 14 is a flowchart according to Embodiment 1 of the present invention, and FIG. 14 shows a non-roaming architecture based on FIG. 8 and FIG. 11, when a UE establishes an IP-CAN session, PCRF and I-PCRF, I- The PCRF establishes a session with the BPCF to establish a session and perform QoS authorization. The IP-CAN session established by the UE does not have a BBERF, and the method includes the following steps: Step S1401: During the UE requesting to establish an IP-CAN session, the PCEF receives a request to establish an IP-CAN session message, and the request establishes an IP-CAN. The session message carries the user ID of the user, the PDN identifier of the PDN network requesting access, the broadband connection information, and optional CSG information. The broadband connection information may be a home gateway connected by the HeNB (Residential GateWay, The public IP address of the RGW can also be the line identifier of the RGW, or the user name of the HeNB owner and the fixed network. For the process of the UE accessing through the HeNB, the broadband connection information obtained by the PCEF in this step and The process of the optional CSG information is as follows: In the attach procedure of the UE, the UE sends an attach request message to the HeNB, and the HeNB sends an attach request message to the MME, and carries the broadband connection information in the attach request message. If the HeNB is in the closed mode or the hybrid mode, the HeNB may also carry the CSG information in the message, where the CSG information includes the access mode and the CSG identifier of the CSG. The MME will interact with the HSS to obtain the subscription data of the user, and allow the UE to access according to the CSG subscription data. The MME then sends a Create Session Request message to the S-GW, where the Create Session Request message carries the broadband connection information and the CSG information. If the HeNB and the hybrid mode, the MME further adds a membership indication to the CSG information, the indication is divided into a CSG user and a non-CSG user; and the S-GW sends a create session request message to the P-GW, where the session request message is sent. The broadband connection information and the CSG information are carried, so that the PCEF located at the P-GW obtains the broadband connection information currently accessed by the UE and the optional CSG information. Or, in the process of establishing another PDN connection by the UE (that is, after the UE is attached, another PDN connection is also established, where the selected P-GW and the selected P-GW may be different), and the UE sends a PDN connection to the MME. After the request, the MME sends a Create Session Request message to the S-GW, where the Create Session Request message carries the broadband connection information and the CSG information (the content included in the CSG information is consistent with the attachment flow). The S-GW sends a Create Session Request message to the P-GW, where the Create Session Request message carries the broadband connection information and the CSG information, so that the PCEF located in the P-GW obtains the broadband connection information currently accessed by the UE and optionally CSG information. If the HeNB accesses the core network through the HeNB GW, the broadband connection information of the HeNB and the optional CSG information will be forwarded to the MME through the HeNB GW, where the steps are the same. For the process of the UE accessing through the HNB, the specific process of the PCEF obtaining the broadband connection information and the optional CSG information in this step is similar to that of the HeNB: the broadband connection information and the optional CSG information are sent by the NodeB to the HNB GW, and the HNB GW sends the information to the HNB GW. The SGSN is then sent by the SGSN to the GGSN, so that the PCEF located in the GGSN can obtain broadband connection information and optional CSG information. Step S1402: The PCEF sends an IP-CAN session establishment indication message to the PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, the IP address assigned to the UE, and the broadband connection information received by the PCEF, and The selected CSG information and the like; Step S1403: If the PCRF has no related subscription information, the PCRF sends a subscription document request message to the SPR, carrying the user identifier and the PDN identifier; Step S1404: SPR returns the subscription information; Step S1405: PCRF Develop a policy PCC policy based on contract data, network policies, and access information. The PCC policy includes at least one of the following: a default PCC rule and an APN-AMBR. The QoS information of the default PCC rule includes a quality of service type identifier QCI and an allocation hold priority ARP parameter. The ARP parameter may identify the priority of the user; Step S 1406: The PCRF sends an interworking session setup message to the I-PCRF, where the message carries the broadband connection information, the optional CSG information, and the default PCC rule, APN-AMBR;

The PCRF selects the I-PCRF to use the following method: The 3GPP network configures the I-PCRF and the correspondence with the fixed network operator on the PCRF, so that when the PCRF obtains the broadband connection information, the correct I-PCRF is selected according to the configuration information. Step S1407: The I-PCRF determines, according to the broadband connection information, the fixed network operator that needs to interact, and whether the same broadband connection information has established an interworking session with the BPCF, if the broadband connection information has not been established for the broadband connection information. In the session, the I-PCRF sends a broadband session setup message to the BPCF of the operator, and provides broadband connection information to the BPCF; otherwise, step S1409 is performed; Step S1408: BPCF returns an acknowledgement message to the I-PCRF; Step S1409: I - The PCRF returns an acknowledgment message to the PCRF; Step S 1410: The PCRF returns an acknowledgment message to the PCEF, where the message carries the default PCC rule, APN-AMBR, etc.; Step S 1411: The gateway where the PCEF is located returns a response to establish an IP-CAN session. Embodiment 2 FIG. 15 is a flowchart according to Embodiment 2 of the present invention, and FIG. 15 shows a non-roaming architecture based on FIG. 8 , where an UE establishes an IP-CAN (IP-Connectivity Access Network). During the session, the PCRF and the I-PCRF, the I-PCRF and the BPCF establish a session to establish a session and perform QoS authorization. The IP-CAN session established by the UE has a BBERF, and the method includes the following steps: Step S1501: During the UE requesting to establish an IP-CAN session, the BBERF receives a request to establish an IP-CAN session message, and the request establishes an IP-CAN. The session message carries the user ID of the user, the PDN identifier of the PDN network requesting access, the broadband connection information, and optional CSG information. The broadband connection information may be a public IP address of the RGW to which the HeNB is connected, or may be a line identifier of the RGW, or may be a user name that the HeNB owner subscribes to the fixed network. For the process of the UE accessing through the HeNB, the BBERF in this step The obtained broadband connection information and the optional CSG information process are as follows: In the attach procedure of the UE, the UE sends an attach request message to the HeNB, and the HeNB sends an attach request message to the MME, and carries the broadband connection information in the attach request message. If the HeNB is in the closed mode or the hybrid mode, the HeNB also carries the CSG information in the message, where the CSG information includes the CSG access mode and the CSG identifier. The MME will interact with the HSS to obtain the subscription data of the user, and allow the UE to access according to the CSG subscription data. The MME then sends a Create Session Request message to the S-GW, where the Create Session Request message carries the broadband connection information and the CSG information. If the HeNB and the hybrid mode, the MME further adds a membership indication to the CSG information, and the indication is divided into a CSG user and a non-CSG user; thus, the BBERF located in the S-GW obtains the broadband connection information currently accessed by the UE and Selected CSG information. Or, in the process of establishing another PDN connection by the UE (that is, after the UE is attached, another PDN connection is also established, where the selected P-GW and the selected P-GW may be different), and the UE sends a PDN connection to the MME. After the request, the MME sends a Create Session Request message to the S-GW, where the Create Session Request message carries the broadband connection information and the CSG information (the content included in the CSG information is consistent with the attachment flow). The BBERF located in the S-GW thus obtains the broadband connection information currently accessed by the UE and the optional CSG information. If the HeNB accesses the core network through the HeNB GW, the broadband connection information of the HeNB and the optional CSG information will be forwarded to the MME through the HeNB GW, and the remaining steps are the same. Step S1502: The BBERF sends a gateway control session establishment message to the PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, the broadband connection information received by the BBERF, and optional CSG information. Step S1503: If the PCRF has no related subscription information, the PCRF sends a subscription document request message to the SPR, carrying the user identifier and the PDN identifier. Step S1504: SPR returns the subscription information; Step S1505: PCRF and according to the subscription data and the network policy , access information, etc. to develop a policy PCC strategy. The policy includes default PCC rules, QoS rules, and APN-AMBR. The default PCC rules and OoS rules include QCI and ARP parameters. The ARP parameter can identify the priority of the user; Step S 1506: The PCRF sends an interworking session setup message to the I-PCRF, where the message carries the broadband connection information, the optional CSG information, and the default PCC rule, APN-AMBR;

The PCRF can select the I-PCRF to use the following method: The 3GPP network configures the correspondence between the I-PCRF and the fixed network operator on the PCRF, so that when the PCRF obtains the broadband connection information, the correct I-PCRF is selected according to the configuration information. Step S1507: The I-PCRF determines, according to the broadband connection information, the fixed network operator that needs to interact, and whether the same broadband connection information has already established an interworking session with the BPCF, if the broadband connection information has not been established for the broadband connection information. In the session, the I-PCRF sends a broadband session setup message to the BPCF of the operator, and provides broadband connection information to the BPCF; otherwise, step S 1509 is performed; Step S 1508: BPCF returns an acknowledgement message to the I-PCRF; Step S 1509: I - The PCRF returns an acknowledgement message to the PCRF; Step S1510: The PCRF returns an acknowledgement message to the BBERF, the message carrying the default QoS rule; Step S1511: The S-GW where the BBERF is located sends a request to the P-GW where the PCEF is located to establish the IP-CAN a session message, the message is implemented as a proxy binding update message, carrying the user identifier and the PDN identifier; Step S1512: The PCEF sends an IP-CAN session establishment indication message to the PCRF, where the message carries the user identifier and the PDN identifier; Step S1513: The PCRF associates the message with the message of step S1502 according to the user identification and the PDN identity. Thereby the PCRF returns the PCC rule defined in step S1505 to the PCEF; Step S 1514: The P-GW returns a response to the S-GW to establish an IP-CAN session message, and the message is implemented as a proxy binding update acknowledgement message carrying an IP address; Step S 1515: The S-GW returns a response to establish an IP-CAN session. , carrying an IP address. Embodiment 3 FIG. 16 is a flowchart according to Embodiment 3 of the present invention, and FIG. 16 shows a home route roaming architecture based on FIG. 9 and FIG. 12, when an UE establishes an IP-CAN session, H-PCRF and I-PCRF The I-PCRF and the BPCF establish a process of establishing a session and performing QoS authorization, respectively. The IP-CAN session established by the UE does not have a BBERF. The specific steps of Figure 16 are similar to the steps of Figure 14. The main difference is that the PCEF is located in the home network. The message that the PCEF receives to request the establishment of the IP-CAN session carries the identifier of the visited network that the UE is currently roaming. The PCEF will send the identifier to the H-PCRF, so that the H-PCRF will The interworking session establishment message is sent to the visited network, and the I-PCRF is selected by the visited network according to the configuration information and the broadband connection information. Embodiment 4 FIG. 17 is a flowchart according to Embodiment 4 of the present invention, and FIG. 17 shows a home route roaming architecture based on FIG. 9. When an UE establishes an IP-CAN session, V-PCRF and I-PCRF, I-PCRF and BPCF establishes a process of establishing a session and performing QoS authorization. The IP-CAN session established by the UE has a BBERF. The method includes the following steps: Step S 1701: In the process of the UE requesting to establish an IP-CAN session, the BBERF receives a request to establish an IP-CAN session message, where the request establishes an IP-CAN session message carrying the user identifier of the user, requesting access PDN ID of the PDN network, broadband connection information, and optional CSG information. The broadband connection information may be a public IP address of the RGW (Residential GateWay) connected to the HeNB, or may be a line identifier of the RGW, or may be a user name that the HeNB owner subscribes to the fixed network; The process of the broadband connection information obtained by the BBERF and the optional CSG information in this step is consistent with the process of FIG. 15 and is not mentioned here. Step S 1702: The BBERF sends a gateway control session establishment message to the V-PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, the broadband connection information received by the BBERF, and optional CSG information. Step S1703: The V-PCRF determines, according to the user identifier, whether an S9 session has been established for the roaming user. If not yet established, the V-PCRF sends an S9 session establishment indication to the H-PCRF; otherwise, the V-PCRF to the H-PCRF Send an S9 session modification indication. The V-PCRF requests to establish a new S9 sub-session in the S9 session, and carries the CSG information in the sub-session; Step S 1704: If the H-PCRF has no relevant subscription information, the H-PCRF sends a subscription document request message to the SPR, Carrying the user identifier and the PDN identifier; Step S1705: The SPR returns the subscription information; Step S 1706: The H-PCRF sets the policy PCC policy according to the subscription data, the network policy, and the access information. The policy includes default PCC rules, QoS rules, and APN-AMBR. The default PCC rules and OoS rules include QCI and ARP parameters. The ARP parameter may identify the priority of the user; Step S 1707: The H-PCRF returns an S9 session establishment or a tampering confirmation message to the V-PCRF, and includes the QoS rule in the newly created S9 subsession; Step S 1708 The V-PCRF performs policy decision according to the local policy, and performs QoS authorization according to the QoS rule delivered by the H-PCRF. Step S1709: The V-PCRF sends an interworking session establishment message to the I-PCRF, where the message carries the broadband connection information. Selected CSG information and default QoS rules;

The V-PCRF selects the I-PCRF and can use the following methods: The correspondence between the I-PCRF and the fixed network operator in the 3GPP network configuration is on the V-PCRF, so that when the V-PCRF obtains the broadband connection information, it selects according to the configuration information. Correctly I-PCRF. Step S 1710: The I-PCRF determines, according to the broadband connection information, the fixed network operator that needs to interact, and whether the same broadband connection information has established an interworking session with the BPCF, if the broadband connection information has not been established for the broadband connection information. In the session, the I-PCRF sends a broadband session setup message to the BPCF of the operator, and provides broadband connection information to the BPCF; otherwise, step S 1712 is performed; Step S 1711: BPCF returns an acknowledgement message to the I-PCRF; Step S 1712: I - the PCRF returns a confirmation message to the V-PCRF; Step S 1713: The PCRF returns an acknowledgement message to the BBERF, and the message carries the default QoS rule. Step S1714: The S-GW where the BBERF is located sends a request to establish an IP-CAN session message to the P-GW where the PCEF is located, and the message is implemented. The proxy binding update message carries the user identifier and the PDN identifier; Step S 1715: The PCEF sends an IP-CAN session establishment indication message to the H-PCRF, where the message carries the user identifier and the PDN identifier; Step S 1716: H-PCRF The user identification and the PDN identity associate the message with the message of step S 1703. Therefore, the H-PCRF returns the PCC rule defined in step S 1706 to the PCEF; Step S 1717: The P-GW returns a response to the S-GW to establish an IP-CAN session message, and the message is implemented as a proxy binding update acknowledgement message, carrying the IP Address; Step S 1718: The S-GW returns a response to establish an IP-CAN session carrying the IP address. Embodiment 5 FIG. 18 is a flowchart according to Embodiment 5 of the present invention, and FIG. 18 shows a local grooming roaming architecture based on FIG. 10 or FIG. 11, when a UE establishes an IP-CAN session, V-PCRF and I-PCRF, I - The PCRF establishes a session with the BPCF to establish a session and perform QoS authorization. The IP-CAN session established by the UE does not have a BBERF. The method includes the following steps: Step S 1801: In the process of the UE requesting to establish an IP-CAN session, the PCEF receives a request to establish an IP-CAN session message, where the request establishes an IP-CAN session message carrying the user identifier of the user, requesting access PDN ID of the PDN network, broadband connection information, and optional CSG information. The broadband connection information may be a public IP address of the RGW to which the HeNB is connected, or may be a line identifier of the RGW, or may be a user name that the HeNB owner subscribes to the fixed network. For the process of the UE accessing through the HeNB or the HNB, the step is The specific process of obtaining the broadband connection information and the optional CSG information obtained by the PCEF is consistent with the process of FIG. 14, and is not mentioned here. Step S 1802: The PCEF sends an IP-CAN session establishment indication message to the V-PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, the IP address assigned to the UE, and the broadband connection information received by the PCEF. And optional CSG information, etc. Step S 1803: The V-PCRF determines, according to the user identifier, whether an S9 session has been established for the roaming user. If not yet established, the V-PCRF sends an S9 session establishment indication to the H-PCRF; otherwise, the V-PCRF goes to the H-PCRF. Send an S9 session modification indication. The V-PCRF requests to establish a new S9 sub-session in the S9 session, and carries the CSG information in the sub-session; Step S 1804: If the H-PCRF does not have the relevant subscription information, the H-PCRF sends a subscription document request message to the SPR, Carrying the user identifier and the PDN identifier; Step S 1805: The SPR returns the subscription information; Step S 1806: The H-PCRF formulates a policy PCC policy according to the subscription data, the network policy, and the access information. The policy includes default PCC rules and information such as APN-AMBR. The QoS information of the default PCC rules includes QCI and ARP parameters. The ARP parameter may identify the priority of the user; Step S 1807: The H-PCRF returns an S9 session establishment or a tampering confirmation message to the V-PCRF, and includes the PCC rule in the newly created S9 subsession; Step S 1808 The V-PCRF performs the policy decision according to the local policy, and performs the QoS authorization by the PCC rule issued by the H-PCRF. Step S1809: The V-PCRF sends an interworking session establishment message to the I-PCRF, where the message carries the broadband connection information, Optional CSG information and default PCC rules, APN-AMBR;

The V-PCRF selects the I-PCRF and can use the following methods: The correspondence between the I-PCRF and the fixed network operator in the 3GPP network configuration is on the V-PCRF, so that when the V-PCRF obtains the broadband connection information, it selects according to the configuration information. Correctly I-PCRF. Step S1810: The I-PCRF determines, according to the broadband connection information, the fixed network operator that needs to interact, and whether the same broadband connection information has established an interworking session with the BPCF, if the broadband connection information has not been established for the broadband connection information. In the session, the I-PCRF sends a broadband session setup message to the BPCF of the operator, and provides broadband connection information to the BPCF; otherwise, step S 1812 is performed; Step S 1811: BPCF returns an acknowledgement message to the I-PCRF; Step S 1812: I - the PCRF returns a confirmation message to the V-PCRF; Step S1813: The V-PCRF returns an acknowledgement message to the PCEF, where the message carries the default PCC rule, APN-AMBR, and the like. Step S1814: The gateway where the PCEF is located returns a response to establish an IP-CAN session. Embodiment 6 FIG. 19 is a flowchart according to Embodiment 6 of the present invention, and FIG. 19 shows a local grooming roaming architecture based on FIG. 10, when a UE establishes an IP-CAN session, V-PCRF and I-PCRF, I-PCRF and BPCF establishes a process of establishing a session and performing QoS authorization. The IP-CAN session established by the UE does not exist as a BBERF. The specific steps of Figure 19 are similar to the steps of Figure 18. The main difference is that the PCEF is located in the visited network, and the P-GW where the PCEF is located allocates an IP address to the UE, and then passes the IP address to the H-PCRF through the V-PCRF. Establishing an IP-CAN session for other UEs accessing the same home base station (HeNB or HNB) or accessing other home base stations, but these home base stations access the same contracted fixed line as the home base station in the above embodiment. The establishment of the IP-CAN session of the UE can be implemented according to different network scenarios using the corresponding processes of FIG. 14 to FIG. In the prior art, only when the HeNB is in the mixed mode and the closed mode, the CSG information is reported to the P-GW and further reported to the PCRF, and in the open mode, not reported to the P-GW and the PCRF. In the embodiment of the present invention, when the PCRF only receives the broadband connection information and does not receive the CSG information, the PCRF may consider that the HeNB accessed by the UE is in an open mode. Similarly, the I-PCRF can also consider that the HeNB accessed by the UE is in an open mode. In the following embodiments, among the CSG information mentioned, the modes accessed by the HeNB include an open mode, a mixed mode, and a closed mode. In the flow of the first embodiment to the sixth embodiment, the broadband connection information is given to the PCRF via PCEF or BBERF. Since the home base station can register the broadband connection information when registering with the home base station management system (referred to as the home base station H(e)MS). Therefore, for a non-roaming scenario, the PCRF can obtain the broadband connection information by querying the H(e)MS. For the roaming scenario, the V-PCRF can obtain the broadband connection information by querying the H(e)MS. In another embodiment of the present invention, the I-PCRF receives the request identifier of the QoS information and/or QoS information of the PCRF; the I-PCRF requests the broadband policy control framework BPCF according to the request identifier of the QoS information and/or the QoS information. QoS authorization, where the QoS authorization request for the IP-CAN session established through the same contracted fixed line is from the same I-PCRF. Preferably, the PCRF may formulate or update the QoS information before the I-PCRF receives the QoS information of the PCRF and the request identifier of the /QoS information; the PCRF sends the QoS information and the indication information to the I-PCRF, where the indication information is used for Instructing the I-PCRF to process the bandwidth resource by at least one of the following: allocation, update, and QoS information includes: ARP and GBR. For resource release, the PCRF determines the bandwidth resource for releasing the authorized QoS information; the PCRF sends an identifier and indication information for determining the QoS of the released bandwidth resource to the I-PCRF, where the indication information is used to indicate the I-PCRF release bandwidth. Resources. If the BCPF sends a message rejecting the allocation or updating of the bandwidth resource, the I-PCRF determines whether the QoS information can preempt the resources allocated by the fixed-line line for other QoS information at least one of the following: The closed user group CSG information obtained by the PCRF, ARP in QoS information.

The I-PCRF instructs the BPCF to release the bandwidth resources of the preempted other QoS information; after the BPCF releases the resource, the I-PCRF again instructs the BCPF to allocate or increase the bandwidth resource of the same size as the first request allocated or increased bandwidth resource; BPCF allocation Or increase the bandwidth resource and return an accept message. Preferably, the I-PCRF sends a message to the PCRF, where the message carries the request identifier of the preempted other QoS information; the PCRF sends a message to the BBERF and/or the PCEF, requesting to delete or deactivate the policy rule corresponding to the request identifier of the QoS information. Alternatively, the PCRF updates the QoS information request identifier corresponding to the policy rule, and sends the updated policy rule to the BBERF and/or PCEF. The following embodiment is a modified embodiment of the above embodiment, which will be separately described below. Embodiment 7 This embodiment describes a process in which a UE that establishes an IP-CAN session according to the flow of FIG. 14 or FIG. 15 needs to request, modify, or release QoS resources due to accessing a service, and the PCRF, the I-PCRF, and the BPCF interact. 3⁄43⁄4 steps. FIG. 20 is a flowchart of Embodiment 7 of the present invention. The process includes the following steps: Step S2001: The PCRF performs policy decision after receiving the service information provided by the AF or the resource modification request message initiated by the UE. The decision includes the following three types: (a) If the AF provides new service information or the UE initiates a new resource allocation request, the PCRF performs QoS authorization for the development of PCC rules, as well as QoS rules (IP-CAN sessions established using the process of Figure 15). The QoS information of the PCC rule or the QoS rule includes QCI, ARP, GBR, and MBR.

(b) If the AF notification service terminates or the UE initiates a resource release request, the QoS authorization by the PCRF is to delete or deactivate the corresponding PCC rule, and the QoS rule (the IP-CAN session established by the process of Figure 15). The QoS information of the PCC rule or QoS rule to be deleted or deactivated includes QCI, ARP, GBR and MBR.

(c) If the AF modifies the provided service information or the UE requests to modify the allocated resources, then the PCRF's QoS authorization is to update the established PCC rules, as well as the QoS rules (using the IP-CAN session established by the process of Figure 15). The QoS information of the PCC rule or QoS rule includes QCI, ARP, GBR and MBR. Step S2002: The PCRF sends an interworking session QoS request message to the I-PCRF, requesting the I-PCRF

QoS authorization. If the PCRF decision is (a), the PCRF requests the I-PCRF to allocate a new resource, and the PCRF carries an indication in the message requesting allocation of a new resource, newly formulated QoS information in the PCC rule, and a one assigned to the QoS information. QoS request identifier. The QoS information includes at least ARP and GBR. ARP indicates the priority of the QoS information, GBR indicates the bandwidth resource GBR requested by the I-PCRF, and the QoS request identifier is used to identify the QoS information of the request. If the PCRF decision is (b), the PCRF requests the release from the I-PCRF. Allocated resources. The PCRF carries an indication of requesting release of the resource, and an identifier of the QoS information corresponding to the PCC rule to be deleted or deactivated (that is, when the PCRF requests the resource allocation to the I-PCRF when the PCC rule is newly formulated, the QoS information is allocated. QoS request identifier) to inform the I-PCRF that the resource of the QoS information identified by the QoS request identifier needs to be released; if the PCRF decision is (c), the PCRF requests the I-PCRF to update the allocated resource. The PCRF carries the request update resource indication in the message, the QoS information in the updated PCC rule, and the allocated QoS request identifier (that is, when the PCRF requests the resource allocation to the I-PCRF when the PCC rule is newly formulated, the QoS information is allocated. QoS request identifier;), to inform the I-PCRF that the resource of the QoS information identified by the QoS request identifier needs to be updated; Step S2003: The I-PCRF sends a broadband session QoS request message to the BPCF requesting the BPCF QoS authorization. If the message received by the I-PCRF allocates a resource for the request, the I-PCRF carries an indication of requesting allocation of a new resource and a GBR in the QoS information in the message to request the BPCF to allocate the bandwidth resource GBR; if the I-PCRF receives The message is a request to release the resource, and the I-PCRF carries an indication of requesting release of the resource and a GBR in the QoS information in the message to request the BPCF to release the bandwidth resource GBR; if the message received by the I-PCRF is to request to update the resource, Then, the I-PCRF will request the BPCF according to the GBR in the updated QoS information and the increment of the allocated GBR. If the updated GBR is reduced, the GBR carried by the I-PCRF in the message is an increase of the GBR. And request the BPCF to release the bandwidth resource GBR increment; if the updated GBR is increased, the I-PCRF carries the GBR as the GBR increment in the message, and requests the BPCF to allocate the bandwidth resource GBR increment; Step S2004: BPCF According to the request message of the I-PCRF, the corresponding policy is executed. If the BPCF receives the request to allocate the bandwidth resource GBR, the BPCF performs resource admission according to the currently available bandwidth of the contracted fixed line. If the remaining available bandwidth is greater than or equal to GBR, the BPCF receives the I-PCRF request and returns a reception confirmation message to the I-PCRF, and the BPCF will deduct the GBR from the currently available bandwidth of the subscription fixed line; if the remaining available bandwidth is less than the GBR The BPCF rejects the I-PCRF request and returns a reject message to the I-PCRF, and carries the bandwidth that the BPCF can accept; if the BPCF receives the request to release the bandwidth resource GBR, the BPCF directly returns a receive acknowledgement message, and the BPCF will Add GBR to the currently available bandwidth of the contracted fixed line. Step S2005: The I-PCRF performs policy decision according to the BPCF return message. If the I-PCRF receives the reception confirmation message (including the reception resource allocation and the resource release), step 4 is performed; if the I-PCRF receives the rejection message, the I-PCRF will prioritize the priority in the QoS information. The level ARP and the CSG information of the UE that initiated the QoS request perform the following logical decisions:

(a) if the access mode in the CSG information is a hybrid mode, and the membership of the UE that initiated the QoS request is a non-CSG user, (al) If there are other QoS information that the user has authorized himself or other authorized QoS information of other non-CSG users accessing through the same contracted fixed line, the I-PCRF will refer to the ARP according to the ARP in the QoS information. The QoS is compared with other QoS information. If the QoS information cannot preempt other QoS information, step S2014 is performed. If the QoS information can preempt resources of other QoS information, step S2006 is performed;

(a2) If there is no other QoS information that the user himself/herself has authorized or the QoS information of other non-CSG users accessing through the same contracted fixed line, step S2014 is performed.

(b) if the access mode in the CSG information is in a mixed mode, and the membership of the UE that initiated the QoS request is a CSG user,

( bl ) if there are other QoS information that has been QoS-authorized by other non-CSG users accessing through the same contracted fixed line, the QoS information will preempt other QoS information already authorized by QoS;

(b2) If there is no QoS information already QoS-authorized by other non-CSG users, then the I-PCRF associates the QoS information with other QoS information that the user has already QoS-accepted according to the ARP and through the same contracted fixed line. If the QoS information of all other CSG users that have entered is compared, if the QoS information cannot preempt other QoS information, step S2014 is performed. If the QoS information can preempt the QoS information resources that have been authorized by other CSG users, step S2006 is performed;

(c) If the mode of access in the CSG information is open mode or closed mode, the I-PCRF accesses the QoS information according to the ARP with other QoS information authorized by the user himself and through the same contracted fixed line. If all the other users' QoS information is compared, if the QoS information cannot preempt other QoS information, step S2014 is performed. If the QoS information can preempt the resources of the QoS information that the other user has authorized, step S2006 is performed. Step S2006: The flow of FIG. 23, FIG. 24 or FIG. 25 is performed. After performing this step, the remaining available bandwidth of the contracted fixed line will be greater than or equal to the GBR in the QoS information. Step S2007: The I-PCRF sends a broadband session QoS request message to the BPCF again, carrying the bandwidth GBR of the request allocation in step S2002. Step S2008: The BPCF allocates a resource and returns an acceptance confirmation message to the I-PCRF. Step S2009: The I-PCRF returns an acknowledgement message to the PCRF, carrying an acceptance indication. Step S2010: If the IP-CAN session established by the flow of FIG. 14 is used, the PCRF sends a gateway control and QoS rule providing message to the BBERF. If the PCRF decision is (a), the PCRF carries the newly formulated QoS rule information in the message; if the PCRF decision is (b), the PCRF carries the QoS rule information to be deleted or deactivated in the message; if the PCRF decision is (c) Then, the PCRF carries the updated QoS rule information in the message. Step S2011: If the IP-CAN session established by the flow of FIG. 15 is used, the BBERF executes the QoS rule and returns an acknowledgement message to the PCRF. Step S2012: The PCRF sends a policy charging rule providing message to the PCEF. If the PCRF decision is (a), the PCRF carries the newly formulated PCC rule information in the message; if the PCRF decision is (b), the PCRF carries the PCC rule information to be deleted or deactivated in the message; if the PCRF decision is (c) Then, the PCRF carries the updated PCC rule information in the message. Step S2013: The PCEF returns an acknowledgement message to the PCRF, and the flow ends. Step S2014: The I-PCRF returns an acknowledgement message to the PCRF, carrying a rejection indication. The PCRF returns the QoS ί 受受受 ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί The process of interaction between H-PCRF, I-PCRF and BPCF in the process of requesting, tampering, or releasing QoS resources for a UE that establishes an IP-CAN session according to the flow of FIG. 16 and FIG. 20 The process is consistent. Embodiment 8 This embodiment describes a PCRF (including H-PCRF, V-PCRF) in a process in which a certain UE that establishes an IP-CAN session according to the procedure of FIG. 17 needs to request, modify, or release QoS resources due to accessing a service. ), the process of interaction between I-PCRF and BPCF. Figure 21 is a flow chart according to Embodiment 8 of the present invention, the flow comprising the following steps: Step S2101: The H-PCRF performs policy decision after receiving the service information provided by the AF or the resource modification request message initiated by the UE. The decision includes the following three types:

(a) If the AF provides new service information or the UE initiates a new resource allocation request, the H-PCRF performs QoS authorization for the development of PCC rules, as well as QoS rules. The QoS information of the PCC rule or QoS rule includes QCI, ARP, GBR, and MBR.

(b) If the AF notification service is terminated or the UE initiates a resource release request, the H-PCRF performs QoS authorization to decide to delete or deactivate the corresponding PCC rule, and the QoS rule. The QoS information to be deleted or deactivated for PCC rules or QoS rules includes QCI, ARP, GBR, and MBR.

(c) If the AF modifies the provided service information or the UE requests to modify the allocated resources, the H-PCRF performs QoS authorization to update the established PCC rules, and QoS rules. The QoS information of the PCC rule or the QoS rule includes QCI, ARP, GBR, and MBR. Step S2102: The H-PCRF sends an S9 session rule providing message to the V-PCRF, and carries a newly formulated QoS rule, or a deleted or deactivated QoS rule or an updated QoS rule according to different H-PCRF decisions. Step S2103: The V-PCRF sends an interworking session QoS request message to the I-PCRF, requesting QoS authorization of the I-PCRF. If the H-PCRF decision is (a), the V-PCRF requests the I-PCRF to allocate a new resource, and the V-PCRF carries an indication requesting to allocate a new resource in the message, newly formulates the QoS information in the QoS rule, and gives A QoS request identifier assigned by the QoS information. The QoS information includes at least ARP and GBR. ARP indicates the priority of the QoS information, GBR indicates the bandwidth resource GBR requested by the I-PCRF, and the QoS request identifier is used to identify the QoS information of the request. If the H-PCRF decision is (b), the V-PCRF is directed to I- The PCRF requests to release the allocated resources. The V-PCRF carries an indication of requesting release of the resource, and an identifier of the QoS information corresponding to the QoS rule to be deleted or deactivated (ie, when the V-PCRF requests the allocation of resources to the I-PCRF when the QoS rule is newly formulated, The QoS request identifier of the QoS information is allocated to notify the I-PCRF that the resource of the QoS information identified by the QoS request identifier needs to be released; if the H-PCRF decision is (c), the V-PCRF requests the I-PCRF to update the allocated resource. . The V-PCRF carries the request update resource indication in the message, and the QoS information in the updated QoS rule Information and the assigned QoS request identifier (that is, the QoS request identifier assigned to the QoS information when the V-PCRF requests the I-PCRF to allocate resources when the QoS rule is newly formulated); to notify the I-PCRF that the QoS needs to be updated. Requesting resources identifying the identified QoS information; Step S2104: The I-PCRF sends a Broadband Session QoS Request message to the BPCF requesting QoS authorization of the BPCF. If the message received by the I-PCRF allocates a resource for the request, the I-PCRF carries an indication of the resource allocation request and the GBR in the QoS information to request the BPCF to allocate the bandwidth resource GBR; if the message received by the I-PCRF is Requesting to release the resource, the I-PCRF carries an indication of requesting release of the resource and GBR in the QoS information in the message to request the BPCF to release the bandwidth resource GBR; if the message received by the I-PCRF is to request to update the resource, then the I-PCRF will According to the GBR in the updated QoS information and the increment of the allocated GBR, the request is made to the BPCF. If the updated GBR is reduced, the GBR carried in the message by the I-PCRF is the GBR increment and carries the request. If the updated GBR is increased, the I-PCRF carries the GBR as a GBR increment in the message, and carries an indication requesting to allocate the resource; Step S2105: The BPCF performs the request message according to the I-PCRF, and executes The corresponding strategy. If the BPCF receives the request to allocate the bandwidth resource GBR, the BPCF performs resource admission according to the currently available bandwidth of the contracted fixed line. If the remaining available bandwidth is greater than or equal to GBR, the BPCF receives the I-PCRF request and returns a reception confirmation message to the I-PCRF, and the BPCF will deduct the GBR from the currently available bandwidth of the subscription fixed line; if the remaining available bandwidth is less than the GBR The BPCF rejects the I-PCRF request and returns a reject message to the I-PCRF, and carries the bandwidth that the BPCF can accept in the message; if the BPCF accepts the request to release the bandwidth resource GBR, the BPCF directly returns a receive acknowledgement message, and the BPCF GBR will be added to the currently available bandwidth of the contracted fixed line. Step S2106: The I-PCRF performs policy decision according to the BPCF return message. If the I-PCRF receives a reception confirmation message (including receiving resource allocation and resource release), step 4 is performed S2110; If the I-PCRF receives the reject message, the I-PCRF will perform the following logical decision based on the priority ARP of the QoS information and the CSG information of the UE that initiated the QoS request:

(a) If the access mode in the CSG information is in a hybrid mode, and the membership of the UE initiating the QoS request is a non-CSG user:

( al ) If there is other QoS information that the user has QoS ί 受 or other QoS-authorized QoS information of other non-CSG users accessing through the same contracted fixed line, then the I-PCRF QoS according to ARP The information is compared with other authorized QoS information. If the QoS information cannot preempt other QoS information, step S2116 is performed. If the QoS information can preempt the resources of other QoS information, step S2107 is performed;

( a2 ) If there is no other QoS information that the user has already QoS ί or other QoS information that is not QoS ί authorized by the user, step S2116 is performed.

(b) If the access mode in the CSG information is mixed mode, and the membership of the UE that initiated the QoS request is a CSG user:

( bl ) if there is QoS-authorized QoS information of other non-CSG users accessing through the same contracted fixed line, the QoS information will preempt QoS information of other non-CSG users with QoS authorization,

(b2) If there is no QoS information already QoS-authorized by other non-CSG users accessing through the same contracted fixed line, then the I-PCRF modifies the QoS rule according to the ARP with the user's own QoS. The QoS information is compared with the already-authorized QoS information of all other CSG users. If the QoS rule cannot preempt other QoS rules, step S2116 is performed. If the QoS information can preempt the resources of the QoS information that the other CS G user has authorized, step S2107 is performed;

(c) If the mode of access in the CSG information is open mode or closed mode, the I-PCRF accesses the QoS information according to the ARP with other QoS information authorized by the user himself and through the same contracted fixed line. The QoS information of all other users is compared, and if the QoS information cannot preempt other QoS information, step S2116 is performed. If the QoS information can preempt the resources of the QoS information that the other user has authorized, step S2107 is performed. Step S2107: The flow of FIG. 23, FIG. 24 or FIG. 25 is executed. After performing this step, the remaining available bandwidth of the contracted fixed line will be greater than or equal to the GBR in the QoS information. Step S2108: The I-PCRF sends a broadband session QoS request message to the BPCF again, carrying the bandwidth GBR of the request allocation in step S2103. Step S2109: The BPCF allocates a resource and returns an acceptance confirmation message to the I-PCRF. Step S2110: The I-PCRF returns an acknowledgement message to the V-PCRF, carrying an acceptance indication. Step S2111: The V-PCRF returns an S9 session rule providing confirmation message to the H-PCRF, and notifies the H-PCRF to request acceptance. Step S2112: The V-PCRF sends a gateway control and QoS rule providing message to the BBERF. If the H-PCRF decision is (a), the PCRF carries the newly formulated QoS rule information in the message; if the H-PCRF decision is (b), the PCRF carries the QoS rule information to be deleted or deactivated in the message; The PCRF decision is (c), and the PCRF carries the updated QoS rule information in the message. Step S2113: Then the BBERF executes the QoS rule and returns an acknowledgement message to the PCRF. Step S2114: The H-PCRF sends a policy charging rule providing message to the PCEF. If the H-PCRF decision is (a), the H-PCRF carries the newly formulated PCC rule information in the message; if the H-PCRF decision is (b), the H-PCRF carries the information to delete or deactivate the PCC rule in the message. If the H-PCRF decision is (c), the H-PCRF carries the updated PCC rule information in the message. Step S2115: The PCEF returns an acknowledgement message to the H-PCRF, and the process ends. Step S2116: The I-PCRF returns an acknowledgement message to the V-PCRF, carrying a rejection indication. Step S2117: The V-PCRF returns an acknowledgement message to the H-PCRF, notifying that the H-PCRF request is rejected. The H-PCRF returns the QoS to the AF or the UE according to the rejection indication, and the process ends. Embodiment 9 This embodiment describes a process in which a UE that establishes an IP-CAN session according to the process of FIG. 18 or FIG. 19 needs to request, modify, or release QoS resources due to accessing a service, and the PCRF (including H-PCRF, V-PCRF), the flow of interaction between I-PCRF and BPCF. FIG. 22 is a flowchart of Embodiment 9 of the present invention. The process includes the following steps: Step S2201: The H-PCRF performs policy decision after receiving the service information provided by the AF or the resource modification request message initiated by the UE. The decision includes the following three types:

(a) If the AF provides new service information or the UE initiates a new resource allocation request, the QoS authorization by the H-PCRF establishes a PCC rule. The QoS information of the PCC rule includes QCK ARP, GBR, and MBR.

(b) If the AF notification service is terminated or the UE initiates a resource release request, the H-PCRF performs QoS ί authorization to delete or deactivate the corresponding PCC rule. The QoS information to delete or deactivate the PCC rules includes QCI, ARP, GBR, and MBR.

(c) If the AF modifies the provided service information or the UE requests to modify the allocated resources, the H-PCRF performs QoS authorization and updates the established PCC rules. The QoS information of the PCC rule includes QCI, ARP, GBR, and MBR. Step S2202: The H-PCRF sends an S9 session rule providing message to the V-PCRF. If the H-PCRF decision is (a), the H-PCRF carries the newly formulated PCC rule information in the message; if the H-PCRF decision is (b), the H-PCRF carries the information to delete or deactivate the PCC rule in the message. If the H-PCRF decision is (c), the H-PCRF carries the updated PCC rule information in the message. Step S2203: The V-PCRF sends an interworking session QoS request message to the I-PCRF, requesting QoS authorization of the I-PCRF. If the H-PCRF decision is (a), the V-PCRF requests the I-PCRF to allocate a new resource, and the V-PCRF carries an indication requesting to allocate a new resource in the message, and newly establishes the QoS in the PCC rule. Information, and a QoS request identifier assigned to the QoS information. The QoS information includes at least ARP and GBR. ARP indicates the priority of the QoS information, GBR indicates the bandwidth resource GBR requested by the I-PCRF, and the QoS request identifier is used to identify the QoS information of the request. If the H-PCRF decision is (b), the V-PCRF is directed to I- The PCRF requests to release the allocated resources. The V-PCRF carries an indication of requesting release of the resource, and an identifier of the QoS information corresponding to the PCC rule to be deleted or deactivated (ie, when the V-PCRF requests the allocation of resources to the I-PCRF when the PCC rule is newly formulated, The QoS request identifier of the QoS information is allocated to notify the I-PCRF that the resource of the QoS information identified by the QoS request identifier needs to be released; if the H-PCRF decision is (c), the V-PCRF requests the I-PCRF to update the allocated resource. . The V-PCRF carries the request update resource indication, the QoS information in the updated PCC rule, and the allocated QoS request identifier in the message (that is, when the V-PCRF requests the I-PCRF to allocate resources when the PCC rule is newly formulated, The QoS request identifier of the QoS information is allocated;) to notify the I-PCRF that the resource of the QoS information identified by the QoS request identifier needs to be updated; Step S2204: The I-PCRF sends a broadband session QoS request message to the BPCF, requesting QoS authorization of the BPCF. If the message received by the I-PCRF allocates a resource for the request, the I-PCRF carries an indication of the resource allocation request and the GBR in the QoS information to request the BPCF to allocate the bandwidth resource GBR; if the message received by the I-PCRF is If the request is to release the resource, the I-PCRF carries an indication of requesting release of the resource and a GBR in the QoS information to request the BPCF to release the bandwidth resource GBR. If the message received by the I-PCRF is to request to update the resource, then the I-PCRF The request to the BPCF is based on the GBR in the updated QoS information and the increment of the allocated GBR. If the updated GBR is reduced, the GBR carried in the message by the I-PCRF is the GBR increment and carries The request to release the resource; if the updated GBR is increased, the I-PCRF carries the GBR as a GBR increment in the message, and carries an indication requesting to allocate the resource; Step S2205: The BPCF responds to the request message of the I-PCRF, Implement the appropriate strategy. If the BPCF accepts the request to allocate the bandwidth resource GBR, the BPCF performs resource admission according to the current available bandwidth of the contracted fixed line. If the remaining available bandwidth is greater than or equal to GBR, the BPCF receives the I-PCRF request and returns a reception confirmation message to the I-PCRF, and the BPCF will sign the contract. The GBR is deducted from the currently available bandwidth of the fixed line; if the remaining available bandwidth is less than the GBR, the BPCF rejects the I-PCRF request and returns a reject message to the I-PCRF, and the message carries the bandwidth that the BPCF can accept; if the BPCF accepts If the bandwidth resource GBR is requested to be released, the BPCF directly returns a reception confirmation message, and the BPCF will add GBR to the currently available bandwidth of the subscription fixed line. Step S2206: The I-PCRF performs policy decision according to the BPCF return message. If the I-PCRF receives the reception confirmation message (including the reception resource allocation and the resource release), step S4210 is performed; if the I-PCRF receives the rejection message, the I-PCRF will calculate the ARP and the QoS information. The CSG information of the UE that initiated the QoS request performs the following logical judgment:

( al ) If there is other QoS information that the user has QoS ί 受 or other QoS-authorized QoS information of other non-CSG users accessing through the same contracted fixed line, then the I-PCRF QoS according to ARP The information is compared with the already-authorized QoS information of all non-CSG users. If the QoS information cannot preempt other PCC rules, step S2216 is performed. If the PCC rule can preempt the resources of other QoS information, step S2207 is performed;

(a2) If there is no other QoS information that the user has already QoS ί or QoS information that has been QoS-authorized by other non-CSG users accessing the same fixed-line line, then step S2216 is performed.

( bl ) if there is QoS-authorized QoS information of other non-CSG users accessing through the same contracted fixed line, the PCC rules will preempt the resources of the QoS-authorized QoS information of other non-CSG users.

(b2) If there is no QoS information already QoS-authorized by other non-CSG users, then the I-PCRF associates the QoS information with other QoS information that the user has already QoS-accepted according to the ARP and through the same contracted fixed line. Authenticated QoS letter of all CSG users If the QoS information cannot preempt other resources of the QoS information, step S2216 is performed. If the QoS information can preempt the resources of the QoS information that the other CSG users have authorized, step S2207 is performed;

(c) If the mode of access in the CSG information is open mode or closed mode, the I-PCRF accesses the QoS information according to the ARP with other QoS information authorized by the user himself and through the same contracted fixed line. The QoS information of all other users is compared, and if the QoS information cannot preempt the resources of other QoS information, step S2216 is performed. If the QoS information can preempt the resources of the QoS information that the other user has already authorized, step S2207 is performed; Step S2207: The flow of FIG. 23, FIG. 24 or FIG. 25 is performed. After performing this step, the remaining available bandwidth of the contracted fixed line will be greater than or equal to the GBR in the QoS information. Step S2208: The I-PCRF sends a broadband session QoS request message to the BPCF again, carrying the bandwidth GBR of the request allocation in step S2203. Step S2209: The BPCF allocates a resource and returns an acceptance confirmation message to the I-PCRF. Step S2210: The I-PCRF returns an acknowledgement message to the V-PCRF, carrying an acceptance indication. Step S2211: The V-PCRF returns an S9 session rule providing confirmation message to the H-PCRF, and notifies the H-PCRF to request acceptance. Step S2212: If the IP-CAN session established by the process of FIG. 18 is used, the V-PCRF sends a gateway control and QoS rule providing message to the BBERF. If the H-PCRF decision is (a), the V-PCRF formulates a QoS rule according to the PCC rule. And carrying the newly formulated QoS rule information in the message; if the H-PCRF decision is (b), the V-PCRF carries the QoS rule information corresponding to the PCC rule to be deleted or deactivated; if the H-PCRF decision is ( c), then the V-PCRF formulates an update QoS rule according to the updated PCC rule, and carries the updated QoS rule information in the message. Step S2213: If the IP-CAN session established by the flow of FIG. 18 is used, the BBERF executes the QoS rule and returns an acknowledgement message to the PCRF. Step S2214: The H-PCRF sends a policy charging rule providing message to the PCEF. If the H-PCRF decision is (a), the V-PCRF carries the newly formulated PCC rule information in the message; if the H-PCRF decision is (b), Then, the V-PCRF carries the PCC rule information to be deleted or deactivated in the message; if the H-PCRF decision is (c), the V-PCRF carries the updated PCC rule information in the message; Step S2215: The PCEF returns to the H-PCRF Confirm the message, the end of the process. Step S2216: The I-PCRF returns an acknowledgement message to the V-PCRF, carrying a rejection indication. Step S2217: The V-PCRF returns an acknowledgement message to the H-PCRF, notifying that the H-PCRF request is rejected. The H-PCRF returns the QoS to the AF or the UE according to the rejection indication, and the process ends. Embodiment 10 This embodiment describes a procedure in which an already allocated resource of a UE that establishes an IP-CAN session according to the flow of FIG. 14 or FIG. 15 is initiated by an I-PCRF. FIG. 23 is a flowchart of Embodiment 10 of the present invention, the process includes the following steps: Step S2301: After the I-PCRF performs the policy decision in the processes of FIG. 19, FIG. 20, and FIG. 21, it is decided to release an IP-CAN session. One or more resources to which QoS information has been allocated, that is, GBR bandwidth. Step S2302: The I-PCRF sends a message to the PCRF, informing the PCRF that it decides to release one or more resources allocated by the QoS information, and carries the corresponding QoS request identifier in the message; Step S2303: The PCRF returns an acknowledgement message; Step S2304: Performing PCRF Strategic decision making. At this point, the PCRF can perform two decisions according to the network policy:

(a) The PCRF deletes or deactivates the PCC rule corresponding to the QoS request identifier of the I-PCRF request and the QoS rule (there is BBERF present); (b) The PCRF modifies the PCC rule corresponding to the QoS request identifier of the I-PCRF request, and changes the original GBR PCC rule to a non-GBR PCC and a QoS rule (with BBERF presence). Step S2305: If the IP-CAN session established by the process of FIG. 14 is used, the PCRF sends a gateway control and QoS rule providing message to the BBERF, and if the PCRF decision is (a), carries the QoS rule information to be deleted or deactivated; The decision is (b), and the updated QoS rule information is carried. Step S2306: If the IP-CAN session established by the process of FIG. 14 is used, the BBERF deletes or deactivates the QoS rule (the PCRF decision is (a)) or updates the QoS rule (the PCRF decision is (b)), and returns an acknowledgement message to the PCRF. . Step S2307: The PCRF sends a policy charging rule providing message to the PCEF. If the PCRF decision is (a), the PCC rule information to be deleted or deactivated is carried. If the PCRF decision is (b), the updated PCC rule information is carried. . Step S2308: The PCEF returns an acknowledgement message to the PCRF. Step S2309: The I-PCRF sends a broadband session QoS request message to the BPCF, requesting the BPCF to release the bandwidth GBR, which is the GBR in the deleted or deactivated PCC rule. Step S2310: After the BPCF releases the resource, a confirmation message is returned. According to the flow of FIG. 16, the process of establishing the allocated resources of a certain UE of the IP-CAN session by the I-PCRF is released, and the flow of the H-PCRF, I-PCRF and BPCF interaction is consistent with the flow of FIG. Embodiment 11 This embodiment describes a flow chart 24 in which an already allocated resource of a UE that establishes an IP-CAN session according to the flow of FIG. 17 is initiated by an I-PCRF, in accordance with Embodiment 11 of the present invention. Flowchart, the process includes the following steps: Step S2401: After performing the policy decision in the processes of FIG. 19, FIG. 20, and FIG. 21, the I-PCRF decides to release the allocated resources of one or more QoS information of an IP-CAN session. , that is, the GBR bandwidth; Step S2402: The I-PCRF sends a message to the V-PCRF, informing the V-PCRF that it decides to release the allocated resources of one or more QoS information, and carries the corresponding QoS request identifier in the message; Step S2403: The V-PCRF returns an acknowledgement message to the I-PCRF. Step S2404: The V-PCRF performs a policy decision. At this point, V-PCRF can perform two decisions according to the network policy:

(a) The V-PCRF deletes or deactivates the QoS request identifier of the I-PCRF request corresponding to the QoS rule;

(b) The V-PCRF modifies the QoS request identifier of the I-PCRF request corresponding to the QoS rule, and changes the original GBR QoS rule to a non-GBR QoS rule. Step SMO ⁵ V-PCRF sends a message to the H-PCRF. If the V-PCRF decision is (a), it requests to release the allocated resources of one or more QoS rules, and carries the corresponding QoS rule name in the message; The PCRF decision is (b), and the updated QoS rule information is carried; Step S2406: The H-PCRF returns an acknowledgement message to the V-PCRF; Step S2407: The V-PCRF sends a gateway control and QoS rule providing message to the BBERF, if V- The PCRF decision is (a), and carries the QoS rule information to be deleted or deactivated; if the V-PCRF decision is (b), the updated QoS rule information is carried; Step S2408: BBERF deletes or deactivates the QoS rule (V - The PCRF decision is (a)) or the QoS rule is updated (the V-PCRF decision is (b)), and the acknowledgment message is returned to the V-PCRF; Step S2409: The H-PCRF sends a policy charging rule providing message to the PCEF, if V- The PCRF decision is (a), and the PCC rule information corresponding to the QoS rule to be deleted or deactivated is carried; if the V-PCRF decision is (b), the PCC rule information corresponding to the updated QoS rule is carried; Step S2410: PCEF Delete or deactivate PCC rules (V-PCRF decision is (a)) or update PCC rules (V-PCRF decision) (b)), returning an acknowledgement message to the H-PCRF; Step S2411: The I-PCRF sends a Broadband Session QoS Request message to the BPCF, requesting the BPCF to release the bandwidth GBR, which is the GBR in the deleted or deactivated QoS rule; S2412: After the BPCF releases the resource, it returns a confirmation message. Embodiment 12 This embodiment describes a procedure in which an already allocated resource of a certain UE that establishes an IP-CAN session according to the flow of FIG. 18 or FIG. 19 is initiated by the I-PCRF. FIG. 25 is a flowchart of Embodiment 12 of the present invention, the process includes the following steps: Step S2501: After the I-PCRF performs the policy decision in the processes of FIG. 20, FIG. 21, and FIG. 22, it is decided to release an IP-CAN session. One or more QoS information allocated resources, that is, GBR bandwidth; Step S2502: The I-PCRF sends a message to the V-PCRF, informing the V-PCRF that it decides to release one or more QoS information allocated resources, in the message Carrying the corresponding QoS request identifier; Step S2503: The V-PCRF returns an acknowledgement message to the I-PCRF; Step S2504: The V-PCRF performs policy decision. At this point, V-PCRF can perform two decisions according to the network policy:

(a) The V-PCRF deletes or deactivates the QoS rule corresponding to the QoS request identifier of the I-PCRF request;

(b) The V-PCRF modifies the QoS rule corresponding to the QoS request identifier of the I-PCRF request, and changes the original GBR QoS rule to a non-GBR QoS rule. Step S2505: The V-PCRF sends a message to the H-PCRF. If the V-PCRF decision is (a), it requests to release one or more resources allocated by the PCC rule, and carries the corresponding PCC rule name in the message; The PCRF decision is (b), and the updated QoS rule information is carried; Step S2506: The H-PCRF returns an acknowledgement message to the V-PCRF; Step S2507: If the IP-CAN session established by the process of FIG. 18 is used, the V-PCRF The BBERF sends a gateway control and QoS rule providing message. If the V-PCRF decision is (a), the QoS rule information corresponding to the PCC rule to be deleted or deactivated is carried; if the V-PCRF decision is (b), the updated QoS rule information corresponding to the PCC rule; Step S2508: If the IP-CAN session established by the process of FIG. 18 is used, the BBERF deletes or deactivates the QoS rule (V-PCRF decision is (a)) or updates the QoS rule (V-PCRF decision (b)), returning an acknowledgement message to the V-PCRF; Step S2509: The V-PCRF sends a policy charging rule providing message to the PCEF, and if the V-PCRF decision is (a), carrying the PCC rule to be deleted or deactivated Information; if the V-PCRF decision is (b), carrying the updated PCC rule information; Step S2510: The PCEF deletes or deactivates the PCC rule (the V-PCRF decision is (a)) or updates the PCC rule (the V-PCRF decision is (b)), and returns a confirmation message to the V-PCRF; Step S2511: I-PCRF direction The BPCF sends a broadband session QoS request message, requesting the BPCF to release the bandwidth GBR, which is the GBR in the deleted or deactivated PCC rule; Step S2512: After the BPCF releases the resource, the acknowledgment message is returned. In all of the above embodiments, the I-PCRF is used as a separate functional network element. As a variant embodiment of the above embodiment, the I-PCRF can also be combined with BPCF, ie the I-PCRF is a functional enhancement of BPCF. Similarly, in the flow of all the above embodiments, the PCRF interacts with the I-PCRF, which can be regarded as the interaction between the PCRF and the BPCF, and the interaction between the I-PCRF and the BPCF can be regarded as an internal implementation. At this point, the BPCF will perform a logical judgment on whether it can preempt the allocated resources and notify the PCRF to release the corresponding resources. In another embodiment of the present invention, an I-PCRF is further provided. FIG. 26 is a structural block diagram of an I-PCRF according to an embodiment of the present invention. The I-PCRF includes: a receiving module 22, a requesting module 24, The following is described: The receiving module 22 is configured to receive the policy and charging rule function PCRF as the request identifier of the IP-CAN session authorized QoS information and/or QoS information; the requesting module 24 is connected to the receiving module 22, and is set to The authorization request is requested from the broadband policy control framework BPCF according to the request identifier of the QoS information and/or the QoS information, wherein the QoS request of the IP-CAN session established through the same subscription fixed line is from the same I-PCRF. Preferably, the requesting module 24 is configured to send the guaranteed bandwidth GBR required to be allocated in the QoS authorization request to the BPCF, which is set to indicate that the BPCF allocates and releases the resource. FIG. 27 is a structural block diagram of a preferred I-PCRF according to an embodiment of the present invention. The I-PCRF further includes: a determining module 26, the module is connected to the receiving module 22, and the requesting module 24 is configured to receive the BPCF transmission. After the message indicating that the bandwidth resource is refused to be allocated, it is determined whether the QoS information can preempt the resources allocated by the fixed network line for other QoS information according to at least one of the following: the closed user group CSG information obtained by the PCRF, and the ARP in the QoS information; The requesting module 24 is further configured to: when the determination result is yes, instruct the BPCF to release the bandwidth resource of the preempted other QoS information; and after the BPCF releases the resource, indicate the BCPF allocation or increase and the first request allocation or increase again. Bandwidth resources of the same bandwidth resource size. In another embodiment of the present invention, an authorization request system is further provided, including: a user equipment, a home base station, and a policy and charging rule function PCRF, an interworking policy, and a charging rule function. An I-PCRF, wherein the user equipment is configured to establish an access protocol network IP-CAN session by establishing a network protocol through the home base station, wherein the home base station is connected to the 3rd Generation Partnership Project 3GPP core network by signing the fixed network line; policy and charging The rule function PCRF selects the interworking policy and charging rule function I-PCRF for the IP-CAN session, wherein the PCRF selects the same I-PCRF for the IP-CAN session established through the contracted fixed line; the PCRF is also used to request the I-PCRF as IP-CAN session for quality of service QoS authorization. Preferably, the system further comprises: a policy and charging execution function PCEF or a load binding and event reporting function BBERF, wherein the policy and charging execution function PCEF or the bearer binding and event reporting function BBERF is used to receive the request to establish an IP- The message of the CAN session, where the message carries the broadband connection information of the contracted fixed network line through which the IP-CAN session is established; and transmits the broadband connection information to the PCRF. Preferably, the PCEF or the BBERF is further configured to receive a message requesting to establish an IP-CAN session, where the message carries the closed subscriber group CSG information of the user equipment; and the PCEF or BBERF is further used to send the closed subscriber group to the PCRF. CSG information. In another embodiment of the present invention, the BPCF performs the function of the I-PCRF in the above embodiment, that is, the BPCF and the I-PCRF are combined, which will be described below, and it should be noted that, The description of the embodiments that have been carried out will not be repeated here.

The BPCF receives the QoS information authorized by the PCRF for the IP-CAN session; the BPCF performs QoS authorization based on the QoS information. Before the BPCF receives the QoS information authorized by the PCRF for the IP-CAN session, the PCRF formulates or updates the QoS information, where the QoS information includes the allocation and retention priority ARP, the guarantee rate GBR, and the PCRF sends the QoS information and the indication information to the BPCF, where The indication information is used to instruct the BCPF to allocate or update bandwidth resources according to the GBR.

In the case that the remaining available bandwidth resources of the contracted fixed network line passed by the IP-CAN session are smaller than the bandwidth resources allocated by the PCRF request, the BPCF determines whether the QoS information can preempt the contracted fixed network line as other Bandwidth resources allocated by QoS information: pre-obtained closed subscriber group CSG information, ARP in QoS information. The BPCF sends a message to the PCRF, where the message carries the request identifier of the other QoS information that is preempted; the PCRF to the BBERF and/or the PCEF is determined by the BPCF to be able to preempt the bandwidth resources allocated by the fixed-line line for other QoS. Send a message, request to delete or deactivate The request identifies the corresponding policy rule; or, the PCRF update request identifies the corresponding policy rule, and sends the updated policy rule to the BBERF and/or the PCEF. After the BPCF releases the bandwidth resources of the other QoS information that is preempted; the BPCF allocates the bandwidth resource allocated or added by the PCRF request for the QoS information, and returns an accept message. In summary, the foregoing embodiments of the present invention solve the problem that the total requirement of the user equipment that cannot share the same subscription fixed network line but selects different PCRFs in the related art does not exceed the subscription QoS guarantee of the contracted fixed network line. In turn, QoS control can be performed on all UEs accessed through the home base station, so that the total QoS requirement does not exceed the QoS that the fixed base line accessed by the home base station can provide. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. An authorization request method, including:

The user equipment establishes a network protocol to connect to the access network IP-CAN session by using the home base station, where the home base station is connected to the 3GPP core plan 3GPP core network through the contracted fixed network line;

The policy and charging rule function PCRF selects an interworking policy and charging rule function I-PCRF for the IP-CAN session, wherein the PCRF selects the same I-PCRF for the IP-CAN session established through the contracted fixed line ;

The PCRF requests the I-PCRF to perform Quality of Service QoS authorization for the IP-CAN session.

The method according to claim 1, wherein before the PCRF selects the I-PCRF for the IP-CAN session, the method further includes:

The policy and charging enforcement function PCEF or bearer binding and event reporting function BBERF receives a message requesting to establish the IP-CAN session, wherein the message carries the subscription fixed network through which the IP-CAN session passes Broadband connection information of the line;

The PCEF or the BBERF sends the broadband connection information to the PCRF.

The method according to claim 1 or 2, wherein before the PCRF selects the I-PCRF for the IP-CAN session, the method further includes:

The PCEF or the BBERF receives the message requesting to establish an IP-CAN session, where the message carries the closed user group CSG information of the user equipment;

The PCEF or the BBERF sends the closed subscriber group CSG information to the PCRF.

4. The method according to claim 3, wherein

In the case that the PCEF or the BBERF is located in the visited network, the PCRF is a visited policy and a charging rule function V-PCRF;

The V-PCRF sends the broadband connection information of the subscribed fixed network line and the closed subscriber group CSG information to the I-PCRF.

5. The method according to claim 3, wherein

In the case that the PCEF is located in the home network, the PCRF is a home location policy and a charging rule function H-PCRF; the PCEF sends information about the visited network currently roamed by the user equipment to the H-PCRF. ;

And transmitting, by the H-PCRF, the broadband connection information of the subscription fixed network line and the closed subscriber group CSG information to the I-PCRF of the visited network according to the information of the visited network.

The method according to claim 1, wherein the correspondence between the I-PCRF and the fixed network operator is pre-configured on the PCRF, and the PCRF is configured according to the obtained broadband connection information of the subscribed fixed network line and The correspondence is to select the I-PCRF for the IP-CAN session.

The method according to claim 2 or 6, wherein the broadband connection information comprises at least one of: a public IP address of a home gateway RGW connected by a home base station, a line identifier of an RGW, a home base station owner and a fixed network The username of the operator's contract.

The method according to claim 1 or 6, wherein the I-PCRF is an independent functional network element or a function enhancement of BPCF.

9. An authorization request method, including:

Interworking policy and charging rule function I-PCRF receiving policy and charging rule function The request identifier of the QoS information and/or QoS information of the PCRF;

The I-PCRF requesting the QoS information and/or the QoS information requesting the QoS authorization from the broadband policy control framework BPCF, wherein the QoS authorization request of the IP-CAN session established through the same contracted fixed network line is from the same I-PCRF.

The method according to claim 9, wherein before the I-PCRF receives the request identifier of the QoS information and the /QoS information of the PCRF, the method further includes:

The PCRF formulates or updates the QoS information;

The PCRF sends the QoS information and the indication information to the I-PCRF, where the indication information is used to indicate that the I-PCRF performs at least one of the following on a bandwidth resource. Processing: Allocating, updating, the QoS information includes: an allocation retention priority ARP, a guarantee rate GBR.

The PCRF determines a bandwidth resource for releasing the authorized QoS information; the PCRF sends a request identifier and indication information for determining the QoS information of the released bandwidth resource to the I-PCRF, where the indication information is used to indicate the The I-PCRF releases bandwidth resources.

12. The method according to claim 10, wherein the requesting, by the I-PCRF, the QoS authorization to the BPCF according to the request identifier of the QoS information and the /QoS information comprises:

In the case that the indication information is used to indicate allocation of resources, the I-PCRF requests the BPCF to allocate a bandwidth resource of the same size as the GBR in the QoS information; where the indication information is used to indicate that the resource is updated. The I-PCRF requests the BPCP to add or release a bandwidth resource of the same size as the difference between the GBRs of the two QoS information before and after the update.

13. The method according to claim 11, wherein the requesting, by the I-PCRF, the release of the bandwidth resource from the BPCF comprises:

The I-PCRF requests the BPCF to release a bandwidth resource of the same size as the GBR in the QoS information corresponding to the request identifier of the received QoS information.

The method according to claim 9, 12 or 13, wherein, after the I-PCRF requests the QoS authorization from the broadband policy control framework BPCF according to the request identifier of the QoS information and/or QoS information,

The BPCF returns a reject message to the I-PCRF if the remaining available bandwidth resource of the subscribed fixed network line through which the IP-CAN session passes is smaller than the bandwidth resource allocated or added by the I-PCRF request. ;

Otherwise, the BPCF allocates bandwidth resources allocated or added with the I-PCRF request and returns an accept message. The method according to claim 14, wherein, after receiving the reject message, the I-PCRF further includes: The I-PCRF determines whether the QoS information can preempt the resources allocated by the subscribed fixed network line for other QoS information according to at least one of the following: closed user group CSG information obtained by the PCRF, the QoS ARP in the message.

The method of claim 15, wherein, if the result of the determination is that the resource that the subscription fixed network line has allocated for other QoS information is preempted, the method further includes:

The I-PCRF instructs the BPCF to release the bandwidth resource of the preempted other QoS information; after the BPCF releases the resource, the I-PCRF again indicates the BCPF allocation or addition and the first request allocation or addition Bandwidth resources with the same bandwidth resources;

The BPCF allocates or adds bandwidth resources and returns an accept message.

The method according to claim 15, wherein, in the case that the result of the determination is that the resource that the subscription fixed network line has allocated for other QoS information can be preempted, the method further includes:

The I-PCRF sends a message to the PCRF, where the message carries the request identifier of the other QoS information that is preempted;

Sending, by the PCRF, a message to the BBERF and/or the PCEF, requesting to delete or deactivate a policy rule corresponding to the request identifier of the QoS information; or the PCRF updating a policy rule corresponding to the request identifier of the QoS information And sending the updated policy rule to the BBERF and/or the PCEF.

The method according to claim 14 or 16, wherein, after the BPCF returns an accept message, the method further includes:

The I-PCRF returns an acknowledgement message to the PCRF, and the PCRF sends a policy rule containing the QoS information to the BBERF and/or the PCEF.

19. The method according to claim 9, wherein the I-PCRF is an independent functional network element or a function enhancement of the BPCF.

20. A method of requesting authorization, including:

Broadband Policy Control Framework BPCF Receive Policy and Charging Rules Function PCRF is IP-CAN Session · Authenticate QoS Information;

The BPCF performs QoS authorization based on the QoS information.

The method according to claim 20, wherein before the BPCF receives the QoS information authorized by the PCRF for the IP-CAN session, the method further includes:

The PCRF formulates or updates QoS information, where the QoS information includes an allocation retention priority ARP, a guarantee rate GBR;

The PCRF sends the QoS information and the indication information to the BPCF, where the indication information is used to indicate that the BCPF allocates or updates a bandwidth resource in the GBR.

22. The method according to claim 20 or 21, wherein

And the BPCF, in the case that the remaining available bandwidth resource of the subscribed fixed network line that the IP-CAN session passes is smaller than the bandwidth resource that the PCRF requests to allocate or increase,

The BPCF determines, according to at least one of the following, whether the QoS information can preempt the bandwidth resources allocated by the signing fixed network line for other QoS information: the closed closed user group CSG information and the ARP in the QoS information.

23. The method according to claim 22, wherein, in the case that the BPCF determines that the reserved fixed network line has allocated bandwidth resources for other QoS, the method further includes:

The BPCF sends a message to the PCRF, where the message carries the request identifier of the other QoS information that is preempted;

Sending, by the PCRF, a message to the BBERF and/or the PCEF, requesting to delete or deactivate the policy rule corresponding to the request identifier; or, the PCRF updates the policy rule corresponding to the request identifier, and sends the updated policy rule to the The BBERF and/or the PCEF.

The method according to claim 22, wherein, in the case that the BPCF determines that the reserved fixed network line has been allocated bandwidth resources for other QoS, the method further includes:

After the BPCF releases the bandwidth resource of the preempted other QoS information; the BPCF allocates the bandwidth resource allocated or added by the PCRF request to the QoS information, and returns an accept message.

25. An interworking policy and charging rule function I-PCRF, including:

The receiving module is configured to receive the policy and charging rule function. The PCRF is an IP-CAN session. ί The authorized QoS information and/or the request identifier of the QoS information;

The requesting module is configured to request authorization from the broadband policy control framework BPCF according to the request identifier of the QoS information and/or QoS information, wherein the QoS authorization request of the IP-CAN session established through the same contracted fixed network line is from the same I-PCRF.

The I-PCRF according to claim 25, wherein the requesting module is configured to set a guaranteed bandwidth GBR required to be allocated in the QoS authorization request and indication information for instructing the BPCF to allocate and release resources. Sent to the BPCF.

27. The I-PCRF of claim 25, further comprising:

The determining module is configured to: after receiving the message sent by the BPCF to indicate that the bandwidth resource is refused to be allocated, determine, according to at least one of the following, whether the QoS information can preempt the resource that the subscribed fixed network line has allocated for other QoS information : closed user group CSG information obtained by the PCRF, ARP in the QoS information;

The requesting module is further configured to: when the determination result is yes, instruct the BPCF to release the bandwidth resource of the preempted other QoS information; and after the BPCF releases the resource, instruct the BCPF to allocate or increase the The bandwidth resource with the same bandwidth resource size allocated or added for the first time.

28. An authorization request system, comprising: a user equipment, a home base station, and a policy and charging rule function PCRF, and further comprising: an interworking policy and a charging rule function I-PCRF, wherein

The user equipment is configured to establish a network protocol connection access network IP-CAN session by using the home base station, where the home base station is connected to the third generation partner plan 3GPP core network by using a contracted fixed network line;

The policy and charging rule function PCRF selects an interworking policy and a charging rule function I-PCRF for the IP-CAN session, where the PCRF selects the same I for the IP-CAN session established through the contracted fixed line. -PCRF;

The PCRF is further configured to request the I-PCRF to perform quality of service QoS authorization for the IP-CAN session.

29. The system of claim 28, further comprising: policy and charging enforcement functions

PCEF or load binding and event 4 obituary function BBERF, where The policy and charging execution function PCEF or the bearer binding and event reporting function BBERF is configured to receive a message requesting to establish the IP-CAN session, where the message carries the IP-CAN session establishment And transmitting the broadband connection information of the fixed line; and transmitting the broadband connection information to the PCRF.

30. The system of claim 28 or 29, wherein

The PCEF or the BBERF is further configured to receive a message requesting to establish an IP-CAN session, where the message carries closed user group CSG information of the user equipment; group CSG information ₍