CN109361526A - Method for routing, PCRF/PCF and the DRA of policy control - Google Patents
Method for routing, PCRF/PCF and the DRA of policy control Download PDFInfo
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- CN109361526A CN109361526A CN201811260311.6A CN201811260311A CN109361526A CN 109361526 A CN109361526 A CN 109361526A CN 201811260311 A CN201811260311 A CN 201811260311A CN 109361526 A CN109361526 A CN 109361526A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
- H04L12/1403—Architecture for metering, charging or billing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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Abstract
The technical issues of the invention discloses a kind of method for routing of policy control, PCRF/PCF and DRA, are related to field of communication technology, are used to solve when 4G user is from 4G network migration to 5G network, and DRA is difficult to realize the routing of the policy control based on single user.This method comprises: user identifier of the DRA based on the received in strategy control requesting information determines the corresponding PCRF/PCF of user identifier, obtains the first destination host name of PCRF/PCF and the first Gx interface session message for carrying user identifier and the first destination host name is sent to PCRF/PCF;PCRF/PCF judges whether user is 4G user according to user identifier;If, then PCRF/PCF obtains the second destination host name according to user identifier and the first destination host name is revised as the second destination host name, and the 2nd Gx interface session message for carrying the second destination host name is returned to DRA, the 2nd Gx interface session message is sent to the corresponding purpose PCRF of the second destination host name by DRA.The routing for the session request that 4G user issues when the present invention is used for 4G user from 4G network migration to 5G network.
Description
Technical field
The embodiment of the present invention is related to field of communication technology more particularly to a kind of method for routing of policy control, PCRF/
PCF and DRA.
Background technique
With the introducing of 5G network and business, operator will face multiple network coexisted situations such as 4G and 5G.Currently, not
It needs to access different networks according to different user property and service attribute with user, such as: 4G user accesses 4G network, 5G
User accesses 5G network, and 4G/5G merges user and accesses 4G/5G converged network;Meanwhile 4G network and 5G network are respectively adopted respectively
From strategy and charging control system, and based on it is respective strategy with charging control system carry out policy control.
In 4G network, in order to realize that multiple PCRF (Policy and Charging Rules would generally be arranged in load balancing
Function, "Policy and Charging Rules Function), the session request that user issues passes through DRA (Diameter Routing
Agent, Diameter route agent node) corresponding PCRF is routed to, which is user's formulation according to above-mentioned session request
And dynamic issues control and charging policy to carry out policy control.In actual conditions, DRA can IMSI number section based on user or
User is routed to corresponding PCRF by person MSISDN number section, i.e., routes to the user of same IMSI number section or MSISDN number section
Corresponding PCRF, but the routing function difficult to realize based on single user.When single 4G user is from 4G network migration to 5G network
As 4G/5G merge user when, carry out unified policy control when carrying out 4G/5G interoperability in order to facilitate user, need by
4G/5G fusion Client-initiated session request routes to while supporting the PCRF/PCF of the policy control functions of 4G and 5G, this
Just it needs to modify the routing configuration information on DRA about the single user.But the road based on single user is configured in DRA
It needs DRA to meet higher storage capacity requirement by configuration information and needs higher O&M cost, it is difficult on current DRA to cause
To realize the routing of the policy control based on single user.
Summary of the invention
The embodiment of the present invention provides the method for routing, PCRF/PCF and DRA of a kind of policy control, existing for solving
In technology when 4G user is from 4G network migration to 5G network, DRA is difficult to realize the routing of the policy control based on single user
The technical issues of.
In a first aspect, providing a kind of method for routing of policy control, comprising:
Route agent node DRA receives user and passes through the user of strategy and charge execution function PCEF the carrying user sent
The strategy control requesting information of mark is melted according to preset user identifier and "Policy and Charging Rules Function/policy control functions
The corresponding relationship for closing network element PCRF/PCF determines the corresponding PCRF/PCF of user identifier;
The first destination host name of DRA acquisition PCRF/PCF;
DRA sends the first Gx interface session message and is sent to PCRF/PCF;User is carried in first Gx interface session message
User identifier and the first destination host name;
PCRF/PCF judges whether user is 4G user according to user identifier;
If the determination result is YES, then PCRF/PCF according to user identifier obtain the second destination host name;
First destination host name is revised as the second destination host name by PCRF/PCF;
PCRF/PCF returns to the 2nd Gx interface session message to DRA, and the 2nd Gx interface session message carries the master of the second mesh
Machine name;
2nd Gx interface session message is sent to the corresponding purpose PCRF of the second destination host name by DRA.
It can be seen that being based on 4G user from 4G network migration in the method for routing of policy control provided by the invention
Into the scene of 5G network, when DRA receives the first Gx interface session message, DRA is not further according to IMSI or Mobile Subscriber International ISDN Number
It distinguishes 4G user and 4G/5G merges user, but the first Gx interface session message is forwarded to PCRF/PCF;It is new in PCRF/PCF
The judgement, modification and redirection function for user are increased, i.e. PCRF/PCF is according to the use in the first Gx interface session message
Family mark judges that user is 4G user or 4G/5G fusion user, and when user is 4G user, PCRF/PCF obtains the 4G from local
The corresponding second destination host name of user, and the first destination host name is revised as the second destination host name, list is supported to realize
The purpose of the routing of a subscriber policy control.It can be seen that the road of the policy control based on single user will be executed in the present invention
By executing subject PCRF/PCF is converted to by DRA, solve in the prior art when 4G user is from 4G network migration to 5G network
When, the technical issues of DRA is difficult to realize the routing of the policy control based on single user, avoids due to increasing base newly in DRA
It is influenced caused by memory capacity of the routing configuration information to DRA of the policy control of single user, and reduces operation management
Cost.
Optionally, if judging result be it is no, PCRF/PCF is controlled according to the first Gx interface session message implementation strategy.
Optionally, PCRF/PCF obtains the second destination host name according to user identifier specifically:
PCRF/PCF obtains the corresponding purpose PCRF of user identifier according to the corresponding relationship of preset user identifier and PCRF,
The second destination host name is obtained according to the corresponding purpose PCRF of user identifier.
Optionally, after PCRF/PCF returns to the 2nd Gx interface session message to DRA, method further include:
DRA is according to the binding information in the PCRF of the 2nd Gx interface session information updating user binding record;
Binding information includes at least following information: user identifier, IP address and the first destination host name.
Optionally, PCRF/PCF judges whether user is 4G user according to user identifier specifically:
PCRF/PCF inquire user property storage/user data register amalgamation database SPR/UDR on the presence or absence of with
The corresponding 5G signing information of user identifier;
If it does not exist, then determine user for 4G user.
Second aspect provides a kind of PCRF/PCF, comprising:
Receiving module, for receiving the first Gx interface session message of DRA transmission;It is carried in first Gx interface session message
The user identifier of user and the first destination host name;
Judgment module, for judging whether user is 4G user according to user identifier;
First processing module, if the judging result for judgment module be it is yes, according to user identifier obtain the second purpose
Host name;
First processing module is also used to the first destination host name being revised as the second destination host name;
Sending module, for returning to the 2nd Gx interface session message to DRA according to the processing result of first processing module, the
Two Gx interface session message carry the second destination host name.
Optionally, PCRF/PCF further include:
Second processing module, if the judging result for judgment module be it is no, held according to the first Gx interface session message
Row policy control.
Optionally, first processing module is specifically used for:
According to preset user identifier purpose PCRF corresponding with the corresponding relationship of PCRF acquisition user identifier, according to user
It identifies corresponding purpose PCRF and obtains the second destination host name.
Optionally, judgment module is specifically used for:
It inquires and whether there is 5G signing information corresponding with user identifier on SPR/UDR;
If it does not exist, then determine user for 4G user.
The third aspect provides a kind of DRA, comprising:
Receiving module is disappeared for receiving user by the policy control request of the user identifier of the PCEF carrying user sent
Breath;
Processing module, for determining that user identifier is corresponding with the corresponding relationship of PCRF/PCF according to preset user identifier
PCRF/PCF obtains the first destination host name of PCRF/PCF;
Sending module, for the first Gx interface session message to be sent to PCRF/ according to the processing result of processing module
PCF;The user identifier and the first destination host name of user are carried in first Gx interface session message;
Receiving module, is also used to receive the 2nd Gx interface session message of PCRF/PCF return, and the 2nd Gx interface session disappears
Breath carries the second destination host name;
Sending module is also used to the 2nd Gx interface session message being sent to the corresponding purpose of the second destination host name
PCRF。
Optionally, DRA further include:
Update module, for being believed according to the binding in the PCRF of the 2nd Gx interface session information updating user binding record
Breath;
Binding information includes at least following information: user identifier, IP address and the first destination host name.
Fourth aspect, provides a kind of PCRF/PCF, and PCRF/PCF includes processor and memory, memory and processor coupling
It closes, memory is for saving the necessary program instruction of PCRF/PCF and data, and processor is for executing the journey stored in memory
Sequence instruction, so that PCRF/PCF executes the method for routing such as above-mentioned policy control.
5th aspect, provides a kind of DRA, DRA includes processor and memory, and memory is coupled with processor, memory
For saving the necessary program instruction of DRA and data, processor is for executing the program instruction stored in memory, so that DRA
Execute the method for routing such as above-mentioned policy control.
6th aspect provides a kind of storage medium, and storage medium is stored with instruction code, and instruction code is for executing as above
The method for routing for the policy control stated.
7th aspect provides a kind of computer program product, and computer program product includes instruction code, and instruction code is used
In the method for routing for executing such as above-mentioned policy control.
It is to be appreciated that PCRF/PCF, DRA of above-mentioned offer, storage medium and computer program product are for executing
The corresponding method of first aspect presented above, therefore, attainable beneficial effect can refer to first aspect above
The beneficial effect of corresponding scheme in method and following detailed description, details are not described herein again.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, the drawings are only for the purpose of illustrating a preferred embodiment, and is not to be construed as limiting the invention.
Fig. 1 a is the strategy and charging control system architecture diagram of 4G network;
Fig. 1 b is the strategy and charging control system architecture diagram of 5G network;
Fig. 2 is a kind of method flow diagram of the method for routing of policy control provided by the invention;
Fig. 3 is a kind of method flow diagram of the method for routing of policy control provided by the invention;
Fig. 4 is a kind of illustrative view of functional configuration of PCRF/PCF provided by the invention;
Fig. 5 is a kind of illustrative view of functional configuration of PCRF/PCF provided by the invention;
Fig. 6 is a kind of illustrative view of functional configuration of DRA provided by the invention;
Fig. 7 is a kind of illustrative view of functional configuration of DRA provided by the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is some embodiments of the present application, instead of all the embodiments.Based on this Shen
Please in embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall in the protection scope of this application.The use of term " first " and " second " etc. does not indicate any sequence, can be by above-mentioned art
Language is construed to the title of described object.In the embodiment of the present application, " illustrative " or " such as " etc. words for indicate make
Example, illustration or explanation.Be described as in the embodiment of the present application " illustrative " or " such as " any embodiment or design
Scheme is not necessarily to be construed as than other embodiments or design scheme more preferably or more advantage.Specifically, it uses " exemplary
" or " such as " etc. words be intended to that related notion is presented in specific ways.
Before introducing the present invention, first to 4G (the 4Generation mobile communication
Technology, fourth generation mobile communication technology, referred to as: 4G) network and 5G (5-Generation mobile
Communication technology, the 5th third-generation mobile communication technology, referred to as: 5G) network strategy with charging control system,
And the routing mode in DRA is simply introduced at present.
Referring to shown in Fig. 1 a, strategy and the charging control system of 4G network include: PCRF, AF (Application
Function, application function), SPR (Subscription Profile Repository, user property storage), PCEF
(Policy and Charging Enforcement Function, strategy and charge execution function), OCS (online
Charging system, online charging system), OFCS (offline Charging system, off-line accounting system), Gx ginseng
Examination point and Rx reference point.Wherein, AF carries out information exchange by Rx interface and PCRF, for providing business information to PCRF;
SPR is used for storage and management policy control signing information relevant to contracted user, such as business, the signing of contracted user's permission
The information such as the classification of user, the QoS (Quality of Service, service quality) of contracted user, charging, and pass through Sp interface
Signing information is supplied to PCRF;PCRF be used for the information that is provided according to AF, SPR and PCEF formulate and dynamically issue control and
Charging policy is used to detect business data flow to PCEF, PCEF, and according to the strategy execution base obtained from PCRF
In the control and charging of business;PCEF is typically deployed in gateway GW (GateWay);OCS be used for online charging, OFCS be used for from
Line charging.PCRF carries out information exchange by Gx reference point and PCEF, and dynamic controls PCC (the Policy and in PCEF
Charging Control, strategy and charging control) behavior, PCC decision message is transmitted, such as initiate and safeguard connection IP-CAN
Session, PCEF request PCC decision to PCRF, and PCRF provides PCC decision to PCEF, terminate connection IP-CAN session etc.;AF passes through
Rx reference point and PCRF carry out information exchange, to use to application layer conversations information such as the marks of PCRF transmitting upper-layer service application
PCC decision is carried out in PCRF.
Referring to shown in Fig. 1 b, strategy and the charging control system of 5G network include: PCF, UDR (User Data
Repository, user data register), AMF (Access and Mobility Management Function, access with
Mobile management function to ps domain), SMF (Session Management Function, conversation management functional is more), NEF (Network
Exposure Function, network opening function), NWDAF (Network Data Analyticas Function, network number
According to analytic function), AF, UDSF, OCS.Wherein, the strategy and the core network element in charging control system that PCF is 5G network, are used for
The information provided according to other NF (Network Function, network function) network element is formulated and dynamically issues control and charging plan
Slightly executed to corresponding NF network element.PCF in 5G network can be separately provided, and setting can also be merged with PCRF.For convenience
Unified Policy control of the 5G user when carrying out 4G/5G interoperability, PCF can be provided simultaneously with the function of PCRF.Of the invention real
It applies in example, the PCF for having the function of PCRF is PCRF/PCF.UDR is for storage and management strategy control relevant to contracted user
Signing information processed, such as the information such as business, the classification of contracted user, the QoS of contracted user, charging that contracted user allows, and
Signing information is supplied to PCF by N25 interface;It is similar with PCF and PCRF/PCF, 4G/5G is being carried out in order to facilitate 5G user
Unified Policy control when interoperability, UDR can be provided simultaneously with the function of SPR, in embodiments of the present invention, have the function of SPR
The UDR of energy is SPR/UDR.The concrete function of AF and OCS and the above-mentioned strategy about 4G network and AF in charging control system
And the function of OCS is identical, is specifically referred to the corresponding of the above-mentioned function about AF and OCS and introduces, details are not described herein again.
PCF supports the interface (N30 of the interface (N25 interface) of UDR, the interface (N15 interface) of AMF, the interface (N7 interface) of SMF, NEF
Interface), the interface (N23 interface) of NWDAF, the interface (N5 interface) of AF, OCS interface (N23 interface), PCF passes through above-mentioned each
Interface transmits the conversation message of the corresponding NF network element of each interface.
The session request that user is issued by AF and PCEF to PCRF can route to corresponding PCRF by DRA to make
Determine and dynamically issues control and charging policy.Specifically, between AF and PCRF, DRA is set between PCEF and PCRF, DRA will
The request that AF and PCEF is issued routes to corresponding PCRF.In DRA, routing configuration information between user and PCRF can be with
According to MSISDN (Mobile Subscriber International ISDN (the Integrated Service of user
Digital Network, ISDN) Number, mobile station international member identification code) number section or IMSI
(International Mobile Subscriber Identification Number, international mobile subscriber identity) number
Duan Jinhang configuration.Wherein, MSISDN=CC+NDC+SN;CC (Country Code) is national code, and Chinese national code CC is
86;NDC (National Destination Code) is network insertion number, forms N1N2N3, such as 130,156,186 by 3
Deng;SN (Subscriber Number) is user code, is formed by 8, H0H1H2H3XXXX, wherein H0H1H2H3 is by operator
Unified distribution;XXXX is sequence number, is voluntarily distributed by carrier subscriber database.
When DRA routes user based on MSISDN, based on the routing configuration for according to MSISDN number section being user configuration
Information routes user.Wherein, above-mentioned routing configuration information can be to use according to MSISDN number section CC+NDC+H0H1H2H3
Family configures corresponding PCRF, and the identical user of CC+NDC+H0H1H2H3 corresponds to the same PCRF.
IMSI=MCC+MNC+MSIN;Wherein, MCC (Mobile Country Code) is mobile national number, by 3
Number composition, for country belonging to unique identification mobile subscriber;MNC (Mobile Network Code) is mobile network number
Code, the mobile network that user is belonged to for identification;MSIN (Mobile Subscriber Identification Number) is
The identification number of mobile subscriber, for the mobile subscriber in unique identification 2G/3G/4G mobile network, MSIN is using 10 codings:
H0H1H2H3 in H1H2H3H0AXXXXX, H0H1H2H3 and MSISDN is identical, and the value of A is corresponding with the NDC in MSISDN,
5 are sequence number after MSIN, and the service area where user voluntarily distributes.
When DRA routes user based on IMSI, based on the routing configuration information for according to IMSI number section being user configuration
User is routed.Wherein, above-mentioned routing configuration information can match according to IMSI number section MCC+MNC+H1H2H3H0A for user
Corresponding PCRF is set, the identical user of MCC+MNC+H1H2H3H0A corresponds to the same PCRF.
It can be seen that being all to configure above-mentioned routing according to the IMSI number section or MSISDN number section of user to match at present in DRA
Confidence breath, to reduce configuration work amount and reduce the storage capacity requirement of DRA.Due in above-mentioned routing configuration information and not including
It can identify the complete sequence number of single user, therefore in this case, DRA is only supported same IMSI number section or same
MSISDN number section user routes to corresponding PCRF, and does not support the routing addressing based on single user, that is to say, that works as list
When a 4G user becomes 4G/5G fusion user from 4G network migration to 5G network, DRA just can not be by the meeting of above-mentioned 4G user sending
Words request routes to corresponding PCRF;However, if in change DRA routing configuration information configuration mode, using can uniquely mark
The IMSI number and Mobile Subscriber International ISDN Number for knowing user are the corresponding PCRF of each user configuration, although may be implemented to support individually uses
The routing addressing purpose at family, but the IMSI number based on user and the routing configuration information data volume of Mobile Subscriber International ISDN Number configuration are huge
Greatly, while configuration process needs huge workload, realizes that process is higher to DRA storage capacity requirement and needs higher fortune
Cost is tieed up, realizes that difficulty is larger;Meanwhile 4G user, which migrates to most of 5G network, to be sent out according to the actual conditions of individual subscriber
Raw, there is very high randomness, the configuration process of routing configuration information is also irregular to be followed;In addition DRA is as responsible information road
By the backbone network element transferred, if often modifying stability and robustness that routing configuration information is unfavorable for network element on DRA, once
It goes wrong in operating process, it is easy to which leading to the routing work of localized network or whole network can not be normally carried out, and increase
The risk that business is normally carried out.
Based on above-mentioned problem, the present invention provides a kind of method for routing of policy control, as shown in Figure 2, comprising:
Step S201:DRA receives the strategy control requesting information for carrying the user identifier of user, determines that user identifier is corresponding
PCRF/PCF, obtain the first destination host name of the PCRF/PCF.
Specifically, preset PCRF/PCF routing policy can be configured on DRA in advance, the preset PCRF/PCF routing
The corresponding relationship of user identifier and the first destination host name is set in strategy, it may be assumed that does not repartition 4G in PCRF/PCF routing policy
User's number section is merged with 4G/5G, the corresponding first destination host name of all 4G and 4G/5G fusion user's number section is both configured to
The host name of PCRF/PCF fusion network element.DRA inquires DRA sheet according to the IMSI number section or MSISDN number section in user identifier
Preconfigured preset PCRF/PCF routing policy on the ground, according to IMSI number section in preset PCRF/PCF routing policy and the
The corresponding relationship or MSISDN number section of one destination host name and the determination of the first destination host name corresponding relationship and user identifier pair
The the first destination host name answered.The corresponding relationship of user identifier and the first destination host name can by those skilled in the art according to
Actual conditions are configured, and this is not limited by the present invention.
First Gx interface session message is sent to PCRF/PCF by step S202:DRA.
Wherein, the user identifier and the first destination host name of user are carried in the first Gx interface session message.User's mark
Know to be the IMSI number section or MSISDN number section of user.IMSI number section can be MCC+MNC+H1H2H3H0A number section,
MSISDN number section can be CC+NDC+H0H1H2H3 number section.For example, if the MSISDN=861860110XXXX of user,
MSISDN number section is 861860110.
First destination host name may include: mobile network appliance title (number comprising mobile network appliance, such as
PCRF 01 etc.), mobile network appliance urban information, mobile network appliance province information, MNC and MCC etc..Specific implementation
In, the name format of the first destination host name is as follows:
PCRF device Host name: pcrf (number)<city abbreviation>[province abbreviation] .pcrf.epc.mnc<MNC>.mcc
<MCC>.3gppnetwork.org;
For example, the host name name of Beijing PCRF equipment can be with are as follows: pcrf01.bj.bj.pcrf.epc.mn
c001.mcc460.3gppnetwork.org。
In addition, can also include: the information such as IP address in the first Gx interface session message.Wherein, IP address
When using Packet data service for user, mobile network is the IP address of user's distribution.IP address is used for packet data industry
The access of business, according to the difference of address style, IP address can be divided into the address User IP v4, the address User IP v6 and user
The address IPv4v6.
Step S203:PCRF/PCF judges whether user is 4G user according to user identifier, if judging result be it is no, hold
Row step S204;If the determination result is YES, S206 is thened follow the steps.
Wherein, the PCRF/PCF in the present invention increases the arbitration functions for user, that is, judge user for 4G user or
4G/5G merges user.
Specifically, PCRF/PCF according to user identifier judge user whether be 4G user judgment mode can there are many,
In a kind of preferred embodiment, when 4G user becomes 4G/5G fusion user from 4G network migration to 5G network, 4G/5G merges net
The corresponding 5G signing information of user identifier for storing the user can be corresponded on the SPR/UDR of network.Therefore, when executing this step,
It can inquire on SPR/UDR with the presence or absence of 5G signing information corresponding with user identifier, and if it exists, then determine above-mentioned user identifier
Corresponding user is that 4G/5G merges user, i.e. the user can access 4G/5G converged network, then follow the steps S204;If not depositing
Then determining that the corresponding user of above-mentioned user identifier is 4G user, i.e. the user only has access to 4G network, thens follow the steps
S206。
Step S204:PCRF/PCF is controlled according to the first Gx interface session message implementation strategy.
When user is that 4G/5G merges user, then PCRF/PCF is controlled according to the first Gx interface session message implementation strategy, and
Step S205 is executed after the execution for completing policy control.
Step S205:PCRF/PCF returns to policy control response message to DRA.
Wherein, after PCRF/PCF returns to policy control response message to DRA, step S211 can further be executed.
Step S206:PCRF/PCF obtains the second destination host name according to user identifier.
Specifically, preset PCRF routing policy can be configured on PCRF/PCF in advance, which routes plan
The corresponding relationship of setting user identifier and the second destination host name in slightly.PCRF/PCF according in user identifier IMSI number section or
Person's MSISDN number section inquires the preconfigured preset PCRF routing policy in this ground PCRF/PCF, according to the preset road PCRF
It is corresponding with the second destination host name with the corresponding relationship of the second destination host name or MSISDN number section by IMSI number section in strategy
Relationship determines the second destination host name corresponding with user identifier.Wherein, the set-up mode and the first mesh of the second destination host name
Host name it is identical, specifically may refer to the above-mentioned related introduction about in the first destination host name, details are not described herein again.User
Identifying can be configured according to the actual situation with the corresponding relationship of the second destination host name by those skilled in the art, the present invention
This is not construed as limiting.
For example, user A is using number section where number in preset PCRF routing policy if user A is 4G user
Corresponding PCRF is the second destination host name of PCRF01, then PCRF/PCF obtains the second destination host name of PCRF01 are as follows:
pcrf01.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org。
First destination host name is revised as the second destination host name by step S207:PCRF/PCF.
Specifically, the PCRF/PCF in the present invention increases the modification function of the first destination host name for user, will
The first destination host name in first Gx interface session message is revised as the second host name, and executes step S208.
For example, user A disappears via the first Gx interface session that DRA is sent to PCRF/PCF if user A is 4G user
The the first destination host name for including in breath are as follows:
pcrfpcf.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org;
The second destination host name that PCRF/PCF is obtained are as follows:
pcrf01.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org;
Pcrfpcf.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org is then revised as pcrf01
.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org。
Step S208:PCRF/PCF returns to the 2nd Gx interface session message to DRA, and the 2nd Gx interface session message carries the
Two destination host names.
Specifically, the PCRF/PCF in the present invention is increased for user's redirection function, it may be assumed that PCRF/PCF is returned to DRA
The 2nd Gx interface session message is returned, so that DRA is according to the second destination host star 4G user in the 2nd Gx interface session message
It routes on PCRF corresponding with the second destination host name, and executes step S209.
For example, if the second destination host name are as follows:
Pcrf01.bj.bj.pcrf.epc.mnc001.mcc460.3gppnetwork.org then routes to 4G user
pcrf01。
2nd Gx interface session message is sent to the corresponding purpose PCRF of the second destination host name by step S209:DRA.
Optionally, after executing step S209, the embodiment of the present invention can further execute following steps:
Step S210: the control of purpose PCRF implementation strategy, and policy control response message is returned to DRA.
Step S211:DRA returns to policy control response message to PCEF.
Optionally, if user is 4G user, after executing step S209, DRA can also be according to the 2nd Gx interface session
Binding information in the PCRF binding record of information updating user.
Specifically, after receiving the first Gx interface session message, DRA can also further obtain the first Gx and connect DRA
User identifier (such as IMSI or MISDN), IP address and the first destination host name in mouth conversation message, and will
Corresponding relationship between user identifier, IP address and the first destination host name three is protected as PCRF binding record
It deposits, to guarantee that it is same that conversation request message that same user issues from the distinct interfaces such as Gx interface, Rx can route to
PCRF, it is ensured that control and charging policy for the user are formulated and are issued by one PCRF, guarantee strategy correctly issue and
It executes.
Then in this step, DRA is bound according to the PCRF of user in the 2nd Gx interface session information updating DRA received
Binding information in record.Above-mentioned binding information includes at least following information: user identifier, IP address and the first purpose
Host name.
In specific implementation, the first destination host name in original binding record can be updated to the second destination host name by DRA,
To realize the update to the information in the first destination host name.For example, if the first destination host of the binding record saved in DRA
The PCRF of name is PCRF/PCF, if the PCRF of the second destination host name is PCRF01 in the 2nd Gx interface session message, DRA is logical
It crosses and the first destination host name is updated to the second destination host name, the PCRF/PCF in binding information can be updated to
PCRF01。
The update of binding information can guarantee that in the session process for carrying out Rx interface, DRA can be according to above-mentioned update
PCRF binding record, routes to correct PCRF for Rx interface conversation request message, in order to complete the session process of Rx interface.
Specifically, the session process of Rx interface shown in Figure 3 is as follows:
Step S1:DRA receives the Rx interface session request that user is sent by AF;Wherein carry the IP address of user.
Step S2:DRA determines the corresponding PCRF of IP address of user according to the IP address of user.
DRA determines that the IP address of user is corresponding from the PCRF binding record that DRA is locally saved according to the IP address of user
PCRF.PCRF binding record is above-mentioned DRA according to the second purpose carried in the 2nd Gx interface session message received
The PCRF that host name updates binds record.
The corresponding PCRF of the IP address of from step S3:DRA to user sends Rx interface session request.
Step S4:DRA receives the Rx interface conversational response message that the corresponding PCRF of IP address of user is returned.
Rx interface conversational response message is sent to AF by step S5:DRA.
It is recorded it can be seen that DRA can be bound by the PCRF of update, Rx interface conversation request message is routed to correctly
PCRF, in order to complete the session process of Rx interface.
It can be seen that being based on 4G user from 4G network migration in the method for routing of policy control provided by the invention
Into the scene of 5G network, when DRA receives strategy control requesting information, DRA is not further according to IMSI or Mobile Subscriber International ISDN Number area
Divide 4G user and 4G/5G to merge user, but the unification of the first Gx interface session message is all sent to PCRF/PCF;PCRF/PCF
In increased judgement, modification and redirection function for user newly, i.e. PCRF/PCF is according in the first Gx interface session message
User identifier judge that user is 4G user or 4G/5G fusion user, when user is 4G user, PCRF/PCF is from local acquisition
The corresponding second destination host name of the 4G user, and the first destination host name is revised as the second destination host name, to realize branch
Hold the purpose of the routing of single user's policy control.It can be seen that the policy control based on single user will be executed in the present invention
The executing subject of routing PCRF/PCF is converted to by DRA, solve in the prior art when 4G user is from 4G network migration to 5G
When network, the technical issues of DRA is difficult to realize the routing of the policy control based on single user, is avoided due to new in DRA
Increasing influences caused by memory capacity of the routing configuration information of the policy control based on single user to DRA, and reduces O&M
Management cost.In addition, DRA can also further save user's mark when receiving the first Gx interface session message in the present invention
Corresponding relationship between knowledge, the IP address of user and PCRF host name three is bound as PCRF to be recorded, and being capable of basis
The above-mentioned PCRF binding record of the 2nd Gx interface session information updating that PCRF/PCF is returned, is effectively ensured in the meeting for carrying out Rx interface
It talks about in process, DRA can bind according to the PCRF of above-mentioned update and record, and Rx interface conversation request message is routed to correctly
PCRF, in order to complete the session process of Rx interface.
The embodiment of the present invention also provides a kind of PCRF/PCF, as shown in figure 4, PCRF/PCF includes:
Receiving module 41, for receiving the first Gx interface session message of DRA transmission;It is taken in first Gx interface session message
User identifier with user and the first destination host name.
Judgment module 42, for judging whether user is 4G user according to user identifier.
Judgment module 42 specifically can be used for: with the presence or absence of 5G corresponding with user identifier signing letter on inquiry SPR/UDR
Breath.
If it does not exist, then determine user for 4G user;If it exists, then determine that user merges user for 4G/5G.
First processing module 43, if the judging result for judgment module 42 be it is yes, according to user identifier obtain second
Destination host name.
Specifically, first processing module 43 obtains user identifier pair according to the corresponding relationship of preset user identifier and PCRF
The purpose PCRF answered obtains the second destination host name according to the corresponding purpose PCRF of user identifier.
First processing module 43 is also used to the first destination host name being revised as the second destination host name.
Second processing module 44, if the judging result for judgment module 42 be it is no, disappeared according to the first Gx interface session
Cease implementation strategy control.
Sending module 45, for returning to the 2nd Gx interface session message to DRA according to the processing result of first processing module,
2nd Gx interface session message carries the second destination host name.In addition, sending module 45 can also be according to Second processing module 44
Processing result to DRA return Gx interface session response message.
The embodiment of the present invention also provides a kind of PCRF/PCF, as shown in Figure 5, comprising: storage unit, processing unit and connects
Mouth unit.Processing unit is for carrying out control management to the movement of PCRF/PCF, for example, processing unit is for supporting PCRF/PCF
Execute each step in Fig. 2 and Fig. 3.Interface unit is used for the interaction of PCRF/PCF and other devices;Storage unit, for depositing
Store up PCRF/PCF code and data.
Wherein, using processing unit as processor, storage unit is memory, and interface unit is for communication interface.Wherein,
PCRF/PCF referring to fig. 5, including communication interface 501, processor 502, memory 503 and bus 504, communication interface
501, processor 502 is connected by bus 504 with memory 503.
Processor 502 can be a general central processor (Central Processing Unit, CPU), micro process
Device, application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC) or one or more
A integrated circuit executed for controlling application scheme program.
Memory 503 can be read-only memory (Read-Only Memory, ROM) or can store static information and instruction
Other kinds of static storage device, random access memory (Random Access Memory, RAM) or letter can be stored
The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (Electrically
Erasable Programmable Read-only Memory, EEPROM), CD-ROM (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal
Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to
Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this.
Memory, which can be, to be individually present, and is connected by bus with processor.Memory can also be integrated with processor.
Wherein, memory 503 is used to store the application code for executing application scheme, and is controlled by processor 502
System executes.Communication interface 501 is used to support the interaction of PCRF/PCF Yu other devices.Processor 502 is for executing memory 503
The application code of middle storage, to realize the method in the embodiment of the present invention.
All related contents for each step that above method embodiment is related to can quote the function of corresponding function module
It can describe, details are not described herein for effect.
The embodiment of the present invention also provides a kind of DRA, as shown in Figure 6, comprising:
Receiving module 61 is requested for receiving user by the policy control of the user identifier of the PCEF carrying user sent
Message.
Processing module 62, for determining that user identifier is corresponding with the corresponding relationship of PCRF/PCF according to preset user identifier
PCRF/PCF, obtain the first destination host name of PCRF/PCF.
Sending module 63, for being sent to the first Gx interface session message according to the processing result of processing module 62
PCRF/PCF。
Receiving module 61 is also used to, and receives the 2nd Gx interface session message that PCRF/PCF is returned, the 2nd Gx interface session
Message carries the second destination host name.
Sending module 63 is also used to, and the 2nd Gx interface session message is sent to the corresponding purpose of the second destination host name
PCRF。
It is, of course, understood that corresponding above method embodiment, receives the policy control response that purpose PCRF is returned and disappears
Breath can be executed by receiving module 61;Returning to policy control response message to PCEF can be executed by sending module 63.
Optionally, DRA further include: update module 64, for the 2nd Gx interface session information updating according to receiving module
Binding information in the PCRF binding record of user.
Binding information includes at least following information: user identifier, IP address and the first destination host name.
The present invention also provides a kind of DRA, as shown in fig. 7, comprises: storage unit, processing unit and interface unit.Processing
Unit is for carrying out control management to the movement of DRA, for example, processing unit is each in Fig. 2 and Fig. 3 for supporting that DRA is executed
Step.Interface unit is used for the interaction of DRA and other devices;Storage unit, for storing DRA code and data.
Wherein, using processing unit as processor, storage unit is memory, and interface unit is for communication interface.Wherein,
DRA referring to fig. 7, including communication interface 701, processor 702, memory 703 and bus 704, communication interface 701, place
Reason device 702 is connected by bus 704 with memory 703.
Processor 702 can be a general central processor (Central Processing Unit, CPU), micro process
Device, application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC) or one or more
A integrated circuit executed for controlling application scheme program.
Memory 703 can be read-only memory (Read-Only Memory, ROM) or can store static information and instruction
Other kinds of static storage device, random access memory (Random Access Memory, RAM) or letter can be stored
The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (Electrically
Erasable Programmable Read-only Memory, EEPROM), CD-ROM (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal
Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to
Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this.
Memory, which can be, to be individually present, and is connected by bus with processor.Memory can also be integrated with processor.
Wherein, memory 703 is used to store the application code for executing application scheme, and is controlled by processor 702
System executes.Communication interface 701 is used to support the interaction of DRA Yu other devices.Processor 702 is deposited in memory 703 for executing
The application code of storage, to realize the method in the embodiment of the present invention.
All related contents for each step that above method embodiment is related to can quote the function of corresponding function module
It can describe, details are not described herein for effect.
The step of method in conjunction with described in the disclosure of invention or algorithm can realize in a manner of hardware, can also
It is realized in a manner of being to execute software instruction by processor.Such as: above-mentioned processing module can be realized by processor, be obtained
Module can by transceiver or other have signal receiving function circuit realize.The embodiment of the present invention also provides a kind of storage Jie
Matter, the storage medium may include memory, and for being stored as computer software instructions used in set-top box, it includes execute plan
Program code designed by the method for routing slightly controlled.Specifically, software instruction can be made of corresponding software module, software
Module can be stored on random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read
Only Memory, ROM), Erasable Programmable Read Only Memory EPROM (Erasable Programmable ROM, EPROM), electricity can
Erasable programmable read-only memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM
(CD-ROM) or in the storage medium of any other form well known in the art.A kind of illustrative storage medium is coupled to place
Device is managed, to enable a processor to from the read information, and information can be written to the storage medium.Certainly, it stores
Medium is also possible to the component part of processor.
The embodiment of the present invention also provides a kind of computer program, which can be loaded directly into memory, and
Containing software code, which is loaded into via computer and can be realized the routing side of above-mentioned policy control after executing
Method.
Those skilled in the art are it will be appreciated that in said one or multiple examples, function described in the invention
It can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by these functions
Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.
Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another
Any medium of one place transmission computer program.Storage medium can be general or specialized computer can access it is any
Usable medium.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (15)
1. a kind of method for routing of policy control characterized by comprising
Route agent node DRA receives user and passes through the user identifier of strategy and charge execution function PCEF the carrying user sent
Strategy control requesting information, net is merged with "Policy and Charging Rules Function/policy control functions according to preset user identifier
The corresponding relationship of first PCRF/PCF determines the corresponding PCRF/PCF of the user identifier;
The DRA obtains the first destination host name of the PCRF/PCF;
The DRA sends the first Gx interface session message and is sent to PCRF/PCF;It is carried in the first Gx interface session message
The user identifier of the user and the first destination host name;
The PCRF/PCF judges whether the user is 4G user according to the user identifier;
If the determination result is YES, then the PCRF/PCF according to the user identifier obtain the second destination host name;
The first destination host name is revised as the second destination host name by the PCRF/PCF;
The PCRF/PCF returns to the 2nd Gx interface session message to the DRA, and the 2nd Gx interface session message carries institute
State the second destination host name;
The 2nd Gx interface session message is sent to the corresponding purpose PCRF of the second destination host name by the DRA.
2. the method for routing of policy control according to claim 1, which is characterized in that if judging result be it is no, it is described
PCRF/PCF is controlled according to the first Gx interface session message implementation strategy.
3. the method for routing of policy control according to claim 1 or 2, which is characterized in that the PCRF/PCF is according to institute
It states user identifier and obtains the second destination host name specifically:
The PCRF/PCF is according to preset user identifier purpose corresponding with the corresponding relationship of the PCRF acquisition user identifier
PCRF obtains the second destination host name according to the corresponding purpose PCRF of the user identifier.
4. the method for routing of policy control according to claim 1, which is characterized in that the PCRF/PCF is to the DRA
After returning to the 2nd Gx interface session message, the method also includes:
Binding information in the PCRF binding record of DRA user according to the 2nd Gx interface session information updating;
The binding information includes at least following information: the user identifier, IP address and the first destination host name.
5. the method for routing of policy control according to claim 1, which is characterized in that the PCRF/PCF is according to the use
Family mark judges whether the user is 4G user specifically:
On PCRF/PCF inquiry user property storage/user data register amalgamation database SPR/UDR with the presence or absence of with
The corresponding 5G signing information of the user identifier;
If it does not exist, then determine the user for 4G user.
6. a kind of PCRF/PCF characterized by comprising
Receiving module, the first Gx interface session message sent for receiving the DRA;In the first Gx interface session message
Carry the user identifier and the first destination host name of the user;
Judgment module, for judging whether the user is 4G user according to the user identifier;
First processing module, if the judging result for the judgment module be it is yes, according to the user identifier obtain second
Destination host name;
First processing module is also used to the first destination host name being revised as the second destination host name;
Sending module returns to the 2nd Gx interface session to the DRA for the processing result according to the first processing module and disappears
Breath, the 2nd Gx interface session message carry the second destination host name.
7. PCRF/PCF according to claim 6, which is characterized in that the PCRF/PCF further include:
Second processing module, if the judging result for the judgment module be it is no, disappeared according to the first Gx interface session
Cease implementation strategy control.
8. according to right want 6 described in PCRF/PCF, which is characterized in that the first processing module is specifically used for:
According to preset user identifier purpose PCRF corresponding with the corresponding relationship of the PCRF acquisition user identifier, according to described
The corresponding purpose PCRF of user identifier obtains the second destination host name.
9. PCRF/PCF according to claim 6, which is characterized in that the judgment module is specifically used for:
It inquires and whether there is 5G signing information corresponding with the user identifier on SPR/UDR;
If it does not exist, then determine the user for 4G user.
10. a kind of DRA characterized by comprising
Receiving module disappears for receiving the policy control request of user identifier for the carrying user that user is sent by PCEF
Breath;
Processing module, for determining that the user identifier is corresponding with the corresponding relationship of PCRF/PCF according to preset user identifier
PCRF/PCF obtains the first destination host name of the PCRF/PCF;
Sending module, for the first Gx interface session message to be sent to PCRF/ according to the processing result of the processing module
PCF;The user identifier and the first destination host name of the user are carried in the first Gx interface session message;
The receiving module is also used to receive the 2nd Gx interface session message of PCRF/PCF return, the 2nd Gx interface meeting
It talks about message and carries the second destination host name;
The sending module is also used to the 2nd Gx interface session message being sent to the second destination host name corresponding
Purpose PCRF.
11. DRA according to claim 10, which is characterized in that the DRA further include:
Update module, for the binding in the PCRF binding record of the user according to the 2nd Gx interface session information updating
Information;
The binding information includes at least following information: the user identifier, IP address and the first destination host name.
12. a kind of PCRF/PCF, which is characterized in that the PCRF/PCF includes processor and memory, the memory and institute
Processor coupling is stated, the memory is used for saving the necessary program instruction of the PCRF/PCF and data, the processor
In executing the program instruction stored in the memory, so that the PCRF/PCF is executed as described in claim any one of 1-5
Policy control method for routing.
13. a kind of DRA, which is characterized in that the DRA includes processor and memory, the memory and the processor coupling
It closes, the memory is for saving the necessary program instruction of the DRA and data, and the processor is for executing the memory
The program instruction of middle storage, so that the DRA executes the method for routing of policy control as described in any one in claim 1-5.
14. a kind of storage medium, which is characterized in that the storage medium is stored with instruction code, and described instruction code is for holding
The method for routing of row policy control as described in any one in claim 1-5.
15. a kind of computer program product, which is characterized in that the computer program product includes instruction code, described instruction
Code is used to execute the method for routing of policy control as described in any one in claim 1-5.
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