CN103200151A - Method and system of policy and charging control (PCC) conversation binding in network address translation (NAT) deployment environment and policy and charging rule function (PCRF) - Google Patents
Method and system of policy and charging control (PCC) conversation binding in network address translation (NAT) deployment environment and policy and charging rule function (PCRF) Download PDFInfo
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Abstract
The invention discloses a method of policy and charging control (PCC) conversation binding in a network address translation (NAT) deployment environment. The method includes the following steps: a policy and charging rule function (PCRF) receives a first address of user equipment (UE) reported by a policy and charging enforcement function (PCEF) and a second address reported by an application function (AF); conversation between the PCEF and the PCRF and conversation between the AF and the PCRF are bound through judging whether the first address and the second address are the same or not; when the first address and the second address are not the same, an address mapping translation relation of the UE established by NAT equipment is obtained; according to the second address and a mapping relation of the address mapping translation relation, a third address corresponding to the second address is inquired; and the first address and the third address are compared to judge whether to be the same or not to bind the conversation between the PCEF and the PCRF and the conversation between the AF and the PCRF. The method can ensure that the PCRF carries out conversation binding in the NAT environment. Besides, the invention further discloses a system of the PCC conversation binding in the NAT deployment environment and the PCRF.
Description
Technical field
The present invention relates to a kind of method of PCC binding session, specifically, this method is applied to belong to network communication field under the NAT deployed environment.
Background technology
PCC (Policy and Charging Control, policy and charging control) framework is QoS (the Quality of Service of core net evolution SAE of future generation (System Architecture Evolution) project, quality of service) security mechanism, it is characterized in that with the Business Stream be granularity, highly mechanism the scheme of QoS end to end, wherein, can be so that network detect different Business Streams by this framework, and realize QoS control, the demands such as meter of chargeing at Business Stream.
Fig. 1 is the schematic diagram of PCC group-network construction in the prior art;
As shown in Figure 1, shown in the PCC framework, comprise following functional entity: AF (Application Function, Application Function), PCRF (Policy and Charging Rule Fuction, strategy and charging control unit), PCEF (Policy and Charging Enforcement Function, strategy and charging performance element), BBERF (Bearing Binding and Event Report Function, bearing binding and event reporting function entity), SPR (Subscription Profile Repository, the user property memory), OCS (Online Charging System, Online Charging System) and OFCS (Offline Charging System, off-line accounting system).
Wherein, PCRF (Policy and Charging Rule Function, strategy and charging control unit) be the centralized decision-making point of QoS rule, the input of its decision-making derives from AF (Application Function, Application Function) business information that Rx interface provides (describe by Business Stream, the Business Stream bandwidth demand, the Business Stream medium type, professional ID), the user signing contract information that comprises among user ID and the SPR, the carrier policy of local configuration, PCRF generate to authorize after the QoS rule to PCEF (Policy and Charging Enforcement Fucntion, strategy and charging performance element) issue, and carry out strategy execution by PCEF according to mandate QoS rule.
Under the 3GPP network, PCRF issues to PCEF (realized by P-GW under LTE, realized by GGSN under 2G/3G) after generating and authorizing the QoS rule, and carries out strategy execution by PCEF according to mandate QoS rule; Under non-3GPP network (as WLAN, Wimax), PCRF issues to BBERF after generating and authorizing the QoS rule, and carries out strategy execution by BBERF according to mandate QoS rule.
The QoS rule mainly comprises 2 partial contents: the description of Business Stream and relevant qos parameter.Wherein, described qos parameter mainly comprises ARP (being used for the priority that the decision bearing resource obtains), QCI (characterizing quality requirements such as forwarding priority, packet loss, the error rate) and bandwidth demand.
Based on the PCC framework, when the initial attach to network of UE, set up the IP-CAN session between user terminal and the network side, UE carries out the business of oneself based on the IP-CAN session that is established.Referring to Fig. 2.
According to Fig. 2 and Fig. 3, the flow process of last figure is briefly described below:
Step 301 receives that to 302:PCEF the IP-CAN session that UE sends sets up request message (Gx interface, adopted Diameter), request PCRF issues the PCC rule of the acquiescence of this UE, wherein, express for convenient, claim that the session between PCEF and the PCRF is session one.
In above-mentioned flow process, require after step 302 or step 310 (do not embody in last figure, for when step 302, PCEF can't be known under the scene of address of UE) to provide the address of UE to PCRF.In step 302, also need carry the user ID (IMSI or MSISDN) of UE.
The default bearer between a UE and the PCEF has been set up in the IP-CAN session that flow process is set up shown in the last figure, this default bearer of setting up in dialogue-based one, and UE can initiate service request, for example initiates logging request or IMS Invite request etc.
In addition, for the business that will carry out UE is controlled, need formulate suitable PCC rule at the business that UE asks.Therefore, under the PCC framework, also need the business of UE is controlled, wherein, figure below is to the professional control flow chart of UE under the PCC framework.
This flow process brief description is as follows:
Step 401 is to step 403:
After AF was triggered, the business information of definition UE sent to PCRF with the business information of UE by Rx interface message (AAR message), the session between initiation AF and the PCRF.
Wherein, the business information of UE can comprise the network address, network identity, the business data flow descriptor of UE, sign (IMSI or MSISDN) of UE etc.And convenient for expressing, can claim that the session between AF and the PCRF is session two.
Step 404, PCRF store the wherein business information of UE after receiving the AAR message that AF sends, and PCRF is not if there is storing user subscription data, and then execution in step 405; Otherwise, execution in step 407.Step 405 sends the request message of request user contracting data to step 406:PCRF to SPR; SPR returns user contracting data to PCRF after receiving this request message.
The network address of the UE that step 407 is sent according to AF in the session two to step 409:PCRF, the network address of the UE that sends with the PCEF that receives in the session one,
Or the user ID of the UE that sends of the PCEF that receives in the user ID by the UE that sends in the meeting two and the session one (because AF might not be known the user ID of UE-especially under third party's business scenario--adopt first kind of scheme usually) is carried out the binding of session one and session two, after binding successfully, PCRF formulates and storage PCC rule, send the response of expression binding session success to AF, and then finish overall process.
But, be that 200710165713.3 application for a patent for invention is illustrated according to application number: owing between UE and PDN network and AF, disposed NAT device usually, caused AF (being deployed in business platform usually) can't know the private net address (before the NAT) of UE usually, and provide the public network address (after the NAT) of UE to PCRF, and in session one, PCEF (is specially P-GW in LTE, its network address of being responsible for UE is distributed, being generally private net address) the UE address that reports to PCRF is private net address (before the NAT), thereby caused the failure of binding session.
Fig. 4 is a kind of the most general NAT deployed environment.As shown in the figure, NAT is deployed on the P-GW fire compartment wall afterwards usually, has one/minority of this NAT device realization public network address to act on behalf of the scheme of a plurality of UE private net addresses.
For realizing the transfer of data between business platform (AF) and UE, AF must and only need know that this UE is used for the public network address/port of private net address/port after the NAT conversion of transfer of data, yet AF might not know private net address/port of UE.When point-to-point communication, the opposing party of communication only needs also to know that the public network address of opposite end and port get final product.Therefore, AF can fill in public network address/port of UE in session usually, thereby causes session one and two to bind.
In Chinese patent application number: in 200710165713.3 the application for a patent for invention, for overcoming the above-mentioned shortcoming of prior art, disclose a kind of technical scheme: AF and reported the all-network address (comprise public network address and private net address even comprise relay address) of the UE of knowing to PCRF, thereby realized session one and two binding.For this reason, 200710165713.3 application for a patent for invention requires UE to provide above-mentioned all-network address information to AF, is specially:
UE carries the above-mentioned all-network address of oneself in the extended field of SDP;
UE fills in the above-mentioned all-network address of oneself in the Via of sip message field;
AF extracts above-mentioned all-network address information from the message that above-mentioned UE initiates.
There is following shortcoming in above-mentioned prior art:
The first, require UE that all network address information are provided, higher specification requirement has been proposed UE, and some scene, for example, pass through under the scene at NAT and to initiate address mapping request by the network equipment to NAT device, UE oneself does not also know oneself public network address;
The second, related to (under the no PCC network) this transformation of storage terminal/client of operate as normal, workload is bigger;
The 3rd, two kinds of UE that the application for a patent for invention of Chinese patent application numbers 200710165713.3 provides provide the method for all address informations possibly can't work in actual deployment: during at actual deployment IMS/SIP network, operator disposes SBC equipment at the edge of own network usually, to realize to the Full Proxy of the Full Proxy of service message and Media Stream (at this moment, SBC can replace the source address of sip message, and address in the SDP message replaced), for example the Via field can be replaced by the public network address behind SBC (NAT) when crossing SBC, thereby, cause this field can't accurately be passed to AF.
The 4th, the patent of invention of Chinese patent application numbers 200710165713.3 has required UE to adopt the SIP/SDP agreement, and this agreement is text type agreement, uses less at mobile phone terminal.
Summary of the invention
The present invention is directed to the shortcoming of prior art, a kind of method that can bind session one and session two reliably is provided, specifically, the technical solution used in the present invention is as following description:
PCC binding session method under a kind of NAT deployed environment comprises:
First address of the UE that PCRF reception PCEF reports and second address that AF reports;
According to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address; Wherein, when described first address and second address are inequality,
Obtain the address mapping transformational relation of the UE that NAT device creates;
According to the mapping relations in described second address and the described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Relatively whether first address is identical with the session between binding PCEF and PCRF and AF and the PCRF with the 3rd address.
Wherein, preferable methods is that the address mapping transformational relation of described UE is private net address and the public network address of port and UE and the mapping relations between the port of UE.
Further, preferably, second address of described UE is the private net address of UE or the public network address of UE.
After present embodiment has been taked technique scheme, can be after introducing the PCC framework, can guarantee PCRF exactly at the binding session that carries out under the NAT environment between PCEF and PCRF and AF and the PCRF, and then provide the required QoS of Business Stream to ensure to have better technical effect.
In addition, the invention also discloses the PCC binding session system under a kind of NAT deployed environment, comprising:
PCEF is for first address that reports UE to PCRF;
AF is for second address that reports UE to PCRF;
NAT device is used for establishment and provides the address of UE to shine upon transformational relation to PCRF;
PCRF is used for according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address; Wherein, when described first address and second address are inequality,
Obtain the address mapping transformational relation of the UE that NAT device creates;
According to the mapping relations in described second address and the described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Relatively whether first address is identical with the session between binding PCEF and PCRF and AF and the PCRF with the 3rd address.
The present invention has taked after the technique scheme; by interface and inquiry between NAT device or data networking equipment and the PCRF; can realize the technical purpose of the claimed PCC binding session under the NAT deployed environment of the present invention, have better technical effect.
In addition, the invention also discloses a kind of PCRF, comprising:
Information receiving unit be used for to receive first address of the UE that PCEF reports and second address of the UE that AF reports;
The first binding session unit is used for according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address;
The transformational relation receiving element is used for obtaining the address mapping transformational relation of the UE that NAT device creates;
Address conversioning unit is used for after the binding conversation failure of the first binding session unit, according to the mapping relations of described second address and described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Whether the second binding session unit is used for according to first address identical with the session between binding PCEF and PCRF and AF and the PCRF with second address or the 3rd address.
The present invention has taked after the technique scheme, design by PCRF, realized under the NAT deployed environment, carrying out the technique effect of PCC binding session, and then, by the relation of the binding session between the PCEF of PCRF and PCRF and AF and the PCRF, the purpose that can provide QoS to ensure for business further.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Come the present invention is described in detail below in conjunction with the drawings and specific embodiments, so that above-mentioned advantage of the present invention is clearer and more definite.
Fig. 1 is the schematic diagram of PCC framework in the prior art;
Fig. 2 be between prior art PCEF and the PCRF session one set up schematic diagram;
Fig. 3 be in the prior art session two between AF and the PCRF set up schematic diagram;
Fig. 4 is the system configuration schematic diagram under the NAT deployed environment in the prior art;
Fig. 5 is the schematic flow sheet of the PCC binding session method under the NAT deployed environment of the present invention;
Fig. 6 is the particular flow sheet of the PCC binding session method under the NAT deployed environment of the present invention;
Fig. 7 is the structural representation of the PCC binding session system under the NAT deployed environment of the present invention;
Fig. 8 is the concrete structure schematic diagram of PCRF of the present invention.
Embodiment
Come the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Method embodiment one:
According to the present invention, provide the method for the PCC binding session under a kind of NAT deployed environment;
Wherein, Fig. 5 is the schematic flow sheet of the PCC binding session method under the NAT deployed environment of the present invention;
As shown in Figure 5, described method specifically comprises:
First address of the UE that S101:PCRF reception PCEF reports and second address that AF reports; Specifically, in the session one of PCRF and PCEF, PCRF receives first address of the UE that PCEF reports to PCRF;
In the session two of PCRF and AF, PCRF receives the Business Stream information that AF reports to PCRF, wherein, second address of the user UE that business platform AF gets access to and user UE have been comprised in the described Business Stream information in order to the port of transfer of data, and described second address and port are through the address behind the NAT device and port.
S102:PCRF is according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address;
Wherein, if first address is identical with second address, then bind session one and session two;
S103: if first address and second address are inequality;
S104: the address mapping transformational relation that obtains the UE that NAT device creates;
S105: according to the mapping relations in described second address and the described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Specifically, address mapping relation is comprising the transformational relation of the various address that NAT device generates, thus, among this step, PCRF can inquire about and corresponding the 3rd address, second address from described address mapping transformational relation according to described second address and port;
S106: relatively whether first address is identical with the session between binding PCEF and PCRF and AF and the PCRF with the 3rd address;
Otherwise, then assert Bind Failed.
In this embodiment, described PCEF has the different forms of expression in concrete framework, for example, PCEF can replace to BBERF, and PCEF can have different functional entity manifestation modes under variety of network environments, these be those skilled in the art can know, be not described in detail at this.
After present embodiment has been taked technique scheme, can after introducing the PCC framework, can guarantee that PCRF carries out the binding of session one and session two exactly under the NAT environment, and then provide the required QoS of Business Stream to ensure to have better technical effect.
Method embodiment two:
Below in conjunction with accompanying drawing the present invention is described in more detail;
Wherein, Fig. 6 is the particular flow sheet of the PCC binding session method under the NAT deployed environment of the present invention, and as shown in Figure 6, described method specifically further comprises:
S201: in the session one of PCRF and PCEF, PCRF receives first address of the UE that PCEF reports to PCRF;
Wherein, the step of this step and prior art is identical substantially, particularly, PCEF receives that the IP-CAN session that UE sends sets up request message, wherein, this message is taked the Gx interface, and to have adopted Diameter, session one mainly be PCEF issues the PCC rule of UE session to the PCRF request, and UE can initiate specific service request by dialogue-based one default bearer of setting up, for example, initiate logging request or IMS Invite request.
And, for the business that will carry out UE is controlled, need formulate suitable PCC rule at the business that UE asks.
S202: in the session two of PCRF and AF, PCRF receives the Business Stream information that AF reports to PCRF, wherein, comprised second address of the user UE that business platform AF gets access to and the port that is used for transfer of data in the described Business Stream information, this port mainly is that UE is in order to the IP transfer of data;
Specifically in one embodiment, for example, AF receives article one message that UE transmits, this message can trigger AF, and thus, AF gets access to second address of UE among this message, and described AF can also get access to the port that concrete UE is used for the IP transfer of data in described article one message.
Wherein, second address and port are well-determined.
Particularly, AF carries second address of the described UE that gets access to and the port of the UE that gets access to sends to PCRF. together in the Rx interface message of sending to PCRF
After S204:PCRF received described Rx interface message, first address of the UE that UE second address that the AF side is transmitted and PCEF transmit compared, wherein,
If if second address of the UE relatively and first address of the UE in the session one identical, think that then these two sessions are sent by identical UE, therefore, implement binding session; And after binding successfully, PCRF formulates and storage PCC rule, simultaneously, sends the response of expression binding session success to AF;
Be provided with under the environment of NAT device, usually, above-mentioned first address and second address mostly can be inequality, and therefore, the present invention specifically also comprises before step S204:
S203:PCRF gets access to private net address/port that NAT device shines upon and the transformational relation of public network address/port;
Wherein, in a preferred embodiment, on the presentation mode of described transformational relation, but mainly contain the following following several mode that is not limited to:
Initiatively provide to PCRF during 1, by the mapping of a pair of address of the every establishment of NAT device/cancellation;
2, the open query interface of NAT device is for the PCRF inquiry;
3, offer PCRF by a data network equipment, perhaps, the open query interface of data networking equipment is for the PCRF inquiry, thus, described PCRF gets access to private net address/port and the mapping between public network address/port and transformational relation that NAT device shines upon by said method.
In this embodiment, initiatively provide private net address/port of shining upon and the transformational relation of public network address/port by NAT device to PCRF.
Thus, after step S204, carry out step S205: if first address and second address are inequality, extract UE address and the corresponding port in this address during then the Business Stream information that transmits of PCRF gathers from AF, and the transformational relation conversion of the private net address/port that shines upon according to NAT device accessed among the step S203 and public network address/port the 3rd address that obtains UE.
Wherein, because the mapping relations between the network address/port are well-determined in the process of carrying out transfer of data, therefore, we can utilize this kind transformational relation and second address and the port of the UE that gets access to, get access to corresponding the 3rd address of UE.
And according to this method, the type of the type of the 3rd address and first address should be identical (public network address or private net address), and then, PCRF compares the UE address that obtains in the 3rd address of this UE that obtains and the session one, if these two addresses are identical, then
S206: implement the binding of session one and session two; Otherwise, assert Bind Failed.
Thus, the present invention's mutual by between the PCRF, NAT device, AF, and provide address and the corresponding port of its UE that obtains by AF, just can be under the network environment of PCC framework, guarantee that PCRF carries out the binding of session one and session two exactly under the NAT environment, and then can solve the problem that produces owing to public network address/private net address is inconsistent under the NAT deployed environment in the prior art.
System embodiment one:
Fig. 7 is the structural representation of the PCC binding session system under the NAT deployed environment of the present invention, as shown in the figure, among the described embodiment, specifically comprises:
PCEF is used for the session one at PCRF and PCEF, first address of the UE that reports to PCRF;
AF is used for the session two at PCRF and AF, to PCRF reporting service stream information, wherein, comprised second address of the user UE that AF gets access in the described Business Stream information and in order to the corresponding port of transfer of data;
PCRF is used for according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address;
Wherein, when described first address and second address are inequality,
Obtain the address mapping transformational relation of the UE that NAT device creates;
According to mapping relations in described second address and the described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Relatively whether first address is identical with the session between binding PCEF and PCRF and AF and the PCRF with the 3rd address.
Can find that from Fig. 7 this system also further comprises:
NAT device is used for providing private net address/port of shining upon and the transformational relation of public network address/port to PCRF;
Wherein, above-mentioned transformational relation can directly be provided to PCRF by NAT device, also can be inquired about and obtain to NAT device by PCRF equipment.
And in this specific embodiment, also be provided with data networking equipment, it links to each other with NAT device, and is used for private net address/port that the storage NAT device shines upon and the transformational relation of public network address/port, and this data networking equipment can also provide inquiry service to PCRF.
The present invention has taked after the technique scheme; by interface and inquiry between NAT device or data networking equipment and the PCRF; can realize the technical purpose of the claimed PCC binding session under the NAT deployed environment of the present invention, have better technical effect.
Device embodiment one:
According to the embodiment of the invention, a kind of PCRF is disclosed;
Wherein, Fig. 8 is the concrete structure schematic diagram of PCRF of the present invention; As described in Figure 8, described PCRF specifically comprises:
Information receiving unit be used for to receive first address of the UE that PCEF reports and second address of the UE that AF reports;
The first binding session unit is used for according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address;
The transformational relation receiving element is used for obtaining the address mapping transformational relation of the UE that NAT device creates;
Address conversioning unit is used for after the binding conversation failure of the first binding session unit, according to the mapping relations of described second address and described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Whether the second binding session unit is used for according to first address identical with the session between binding PCEF and PCRF and AF and the PCRF with second address or the 3rd address.
Wherein, described NAT device initiatively provides to PCRF when being used for the mapping of a pair of address of every establishment/cancellation; Perhaps, open query interface for the PCRF inquiry.
In addition, also be provided with data networking equipment, be used for storing the address mapping transformational relation of the UE that described NAT device creates, and offer PCRF or inquire about for PCRF.
Wherein, mapping transformational relation in the address of described UE comprises: the public network address of the private net address of UE and port and UE and the mapping relations between the port.
Wherein, second address of described UE is the private net address of UE or the public network address of UE.
In addition, described PCRF also comprises:
PCC rule generation unit is used for formulating the PCC rule of business data flow for session after the binding session success.
The present invention has taked after the technique scheme, and this PCRF has realized carrying out the PCC binding session under the NAT deployed environment, and then ensures to have better technical effect for business provides QoS further.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the PCC binding session method under the NAT deployed environment comprises:
First address of the UE that PCRF reception PCEF reports and second address that AF reports;
According to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address; Wherein, when described first address and second address are inequality,
Obtain the address mapping transformational relation of the UE that NAT device creates;
According to the mapping relations in described second address and the described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Relatively whether first address is identical with the session between binding PCEF and PCRF and AF and the PCRF with the 3rd address.
2. the PCC binding session method under the NAT deployed environment according to claim 1 is characterized in that, the address mapping transformational relation of described UE comprises:
The public network address of the private net address of UE and port and UE and the mapping relations between the port.
3. the PCC binding session method under the NAT deployed environment according to claim 2 is characterized in that,
Second address of described UE is the private net address of UE or the public network address of UE.
4. the PCC binding session method under the NAT deployed environment according to claim 1, it is characterized in that, the described address mapping transformational relation that obtains the UE that NAT device creates specifically comprises: active provides to PCRF during by the mapping of a pair of address of the every establishment of NAT device/cancellation; Perhaps,
The open query interface of NAT device is for the PCRF inquiry; Perhaps, offer PCRF or supply PCRF to inquire about by a data network equipment.
5. PCRF specifically comprises:
Information receiving unit be used for to receive first address of the UE that PCEF reports and second address of the UE that AF reports; The first binding session unit is used for according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address;
The transformational relation receiving element is used for obtaining the address mapping transformational relation of the UE that NAT device creates;
Address conversioning unit is used for after the binding conversation failure of the first binding session unit, according to the mapping relations of described second address and described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Whether the second binding session unit is used for according to first address identical with the session between binding PCEF and PCRF and AF and the PCRF with second address or the 3rd address.
6. PCRF according to claim 5 is characterized in that, the address mapping transformational relation of described UE comprises: the public network address of the private net address of UE and port and UE and the mapping relations between the port.
7. according to claim 5 or 6 described PCRF, it is characterized in that second address of described UE is the private net address of UE or the public network address of UE.
8. the system of the PCC binding session under the NAT deployed environment comprises:
PCEF is for first address that reports UE to PCRF;
AF is for second address that reports UE to PCRF;
NAT device is used for establishment and provides the address of UE to shine upon transformational relation to PCRF;
PCRF is used for according to the whether session between identical binding PCEF and PCRF and AF and the PCRF of first address and second address; Wherein, when described first address and second address are inequality,
Obtain the address mapping transformational relation of the UE that NAT device creates;
According to the mapping relations in described second address and the described address mapping transformational relation, inquiry and corresponding the 3rd address, second address;
Relatively whether first address is identical with the session between binding PCEF and PCRF and AF and the PCRF with the 3rd address.
9. the system of the PCC binding session under the NAT deployed environment according to claim 8 is characterized in that, described NAT device initiatively provides to PCRF when being used for the mapping of a pair of address of every establishment/cancellation; Perhaps, open query interface for the PCRF inquiry.
10. according to Claim 8 or the system of the PCC binding session under the 9 described NAT deployed environment, it is characterized in that,
Also be provided with data networking equipment, be used for storing the address mapping transformational relation of the UE that described NAT device creates, and offer PCRF or inquire about for PCRF.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN105491176A (en) * | 2014-09-26 | 2016-04-13 | 中国电信股份有限公司 | Method and system for PCRF addressing |
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| CN109644179A (en) * | 2016-07-27 | 2019-04-16 | 甲骨文国际公司 | Strategy based on subscriber is applied to method, system and the computer-readable medium of network service data stream |
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| CN110048951A (en) * | 2018-01-16 | 2019-07-23 | 中国移动通信有限公司研究院 | A kind of PCF addressing method and device, equipment, storage medium |
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| WO2015169044A1 (en) * | 2014-05-05 | 2015-11-12 | 华为技术有限公司 | Session binding method, device and system in roaming scenario |
| WO2015192568A1 (en) * | 2014-06-19 | 2015-12-23 | 中兴通讯股份有限公司 | Multisession binding method, device and system |
| CN105491176B (en) * | 2014-09-26 | 2019-04-02 | 中国电信股份有限公司 | A kind of method and system for PCRF addressing |
| CN105491176A (en) * | 2014-09-26 | 2016-04-13 | 中国电信股份有限公司 | Method and system for PCRF addressing |
| CN105764043A (en) * | 2014-12-15 | 2016-07-13 | 中国移动通信集团公司 | Session binding method, PCRF, and session binding system |
| CN105992195A (en) * | 2015-02-16 | 2016-10-05 | 中国电信股份有限公司 | Method and system for implementing PCRF (policy and charging rule function) addressing |
| CN106804033A (en) * | 2015-11-26 | 2017-06-06 | 中国电信股份有限公司 | Binding session method and system and ability open gateway |
| CN109644179A (en) * | 2016-07-27 | 2019-04-16 | 甲骨文国际公司 | Strategy based on subscriber is applied to method, system and the computer-readable medium of network service data stream |
| CN109644179B (en) * | 2016-07-27 | 2021-08-03 | 甲骨文国际公司 | Methods, systems, and computer readable media for applying subscriber-based policies to network service data flows |
| CN109921918A (en) * | 2017-12-12 | 2019-06-21 | 华为技术有限公司 | A kind of service quality QoS control method and device |
| CN110048951A (en) * | 2018-01-16 | 2019-07-23 | 中国移动通信有限公司研究院 | A kind of PCF addressing method and device, equipment, storage medium |
| CN110048951B (en) * | 2018-01-16 | 2020-11-27 | 中国移动通信有限公司研究院 | PCF addressing method and device, equipment and storage medium |
| CN111328035A (en) * | 2018-12-14 | 2020-06-23 | 中国移动通信集团北京有限公司 | Service processing method, device and readable medium |
| CN111328035B (en) * | 2018-12-14 | 2021-08-10 | 中国移动通信集团北京有限公司 | Service processing method, device and readable medium |
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