CN103906223B - Information synchronization method and system based on double DRA in domain - Google Patents
Information synchronization method and system based on double DRA in domain Download PDFInfo
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Abstract
The invention discloses a kind of information synchronization method and system based on double DRA in domain, it is related to mobile network's technical field.This method includes：First DRA receives the CCR-I message that PCEF is sent, and CCR-I message is transmitted into the 2nd DRA；2nd DRA receives the CCR-I message of the first DRA forwardings, selects HPCRF according to CCR-I message, establishes the dynamic binding information of IP CAN sessions and the HPCRF, CCR-I message is transmitted into the HPCRF；2nd DRA receives the CCA-I message that HPCRF is returned, and CCA-I message is transmitted into the first DRA；First DRA receives the CCA-I message of the 2nd DRA forwardings, and the dynamic binding information of IP CAN sessions and the HPCRF is established according to CCA-I message.The present invention passes through the expansion to basic signaling process, realize that IP CAN sessions are synchronous with PCRF binding informations between two DRA in domain by the way of general, solve the problems, such as that AF caused by because information is asynchronous can not address PCRF, go for the synchronizing information between different manufacturers DRA.
Description
Technical field
It is more particularly to a kind of based on double DRA in domain the present invention relates to mobile network's technical field（Diameter Router
Agent, Diameter route agent）Information synchronization method and system.
Background technology
With PCC（Policy Control and Charging, policy control and charging）The introducing of framework, passes through AF
（Application Function, Application Function）The technology of dynamic network resource adjustment is carried out for client layer utility cession
To carry out new business, new business mode creates condition.In 3GPP PCC frameworks, AF uses Diameter（Diameter）Agreement to
PCRF（Policy and Charging Rules Function, strategy and charging regulation function entity）Log on resource.
AF is typically found by DRA using user side IP address has related IP-CAN（IP Connectivity Access
Network, IP connection access network）The PCRF of information.
Existing network typically deployment two DRA and multiple pc RF.If IP-CAN sessions and PCRF dynamic binding relationship are two
There is no synchronization mechanism between platform DRA, when AF selects PCRF by any one DRA, if the user that the DRA does not provide with AF
The IP-CAN sessions and PCRF dynamic binding relationship that IP address matches, DRA can return to AF error messages, cause business application
Failure.
At present, prior art mainly realizes the synchronization of information between DRA by producer's proprietary protocol, is unfavorable for more producer DRA
Between interoperability.
The content of the invention
A technical problem to be solved of the embodiment of the present invention is：Solves the problems, such as the synchronizing information between different manufacturers DRA.
The one side of the embodiment of the present invention provides a kind of information synchronization method based on double DRA in domain, including：First
DRA receives the initial CCR-I message of credit control request that strategy and charging execution function entity PCEF are sent, and CCR-I is disappeared
Breath is transmitted to the 2nd DRA；2nd DRA receives the CCR-I message of the first DRA forwardings, and home domain is selected according to CCR-I message
"Policy and Charging Rules Function entity HPCRF, establish IP connections access network IP-CAN sessions and the dynamic binding of the HPCRF
Information, CCR-I message is transmitted to the HPCRF；It is initial that 2nd DRA receives the diameter credit control response that the HPCRF is returned
CCA-I message, CCA-I message is transmitted to the first DRA；First DRA receives the CCA-I message of the 2nd DRA forwardings, according to
CCA-I message establishes the dynamic binding information of IP-CAN sessions and the HPCRF.
Wherein, the CCR-I message carries the IP address and international mobile subscriber identity IMSI of user equipment (UE), institute
IP-CAN sessions are stated to be identified by UE IP address and IMSI, CCA-I message carry UE IP address and IMSI and
HPCRF identification informations.
The information synchronization method based on double DRA in domain also includes：First DRA receives the diameter credit control that PCEF is sent please
Ask and terminate CCR-T message, CCR-T message is transmitted to the 2nd DRA；The CCR-T that 2nd DRA receives the first DRA forwardings disappears
Breath, the HPCRF is transmitted to by CCR-T message；2nd DRA receives the diameter credit control response that the HPCRF is returned and terminated
CCA-T message, IP-CAN sessions and the dynamic binding information of the HPCRF are deleted according to CCA-T message, by CCA-T message
It is transmitted to the first DRA；
First DRA receive the 2nd DRA forwarding CCA-T message, according to CCA-T message delete IP-CAN sessions with it is described
HPCRF dynamic binding information.
Wherein, the CCR-T message and the CCA-T message carry UE IP address and IMSI and HPCRF marks
Know information, the IP-CAN sessions are identified by UE IP address and IMSI.
The information synchronization method based on double DRA in domain is applied to non-roaming scene, roams home scene, local break-out
Roaming scence.
The one side of the embodiment of the present invention provides a kind of information synchronization system based on double DRA in domain, including：First
DRA and the 2nd DRA；First DRA is used to receive strategy and the credit control request of charging execution function entity PCEF transmissions is initial
CCR-I message, CCR-I message is transmitted to the 2nd DRA；The CCA-I message of the 2nd DRA forwardings is received, is disappeared according to CCA-I
Breath establishes IP-CAN sessions and the dynamic binding information of the HPCRF；2nd DRA is used for the CCR-I for receiving the first DRA forwardings
Message, the "Policy and Charging Rules Function entity HPCRF of home domain is selected according to CCR-I message, establish IP connection access networks
IP-CAN sessions and the dynamic binding information of the HPCRF, the HPCRF is transmitted to by CCR-I message；Receive the HPCRF
The diameter credit control of return responds initial CCA-I message, and CCA-I message is transmitted into the first DRA.
Wherein, the CCR-I message carries the IP address and international mobile subscriber identity IMSI of user equipment (UE), institute
IP-CAN sessions are stated to be identified by UE IP address and IMSI, CCA-I message carry UE IP address and IMSI and
HPCRF identification informations.
In based on double DRA information synchronization system in domain, the diameter credit control that the first DRA is additionally operable to receive PCEF transmissions please
Ask and terminate CCR-T message, CCR-T message is transmitted to the 2nd DRA；The CCA-T message of the 2nd DRA forwardings is received, according to
CCA-T message deletes IP-CAN sessions and the dynamic binding information of the HPCRF；2nd DRA is additionally operable to receive the first DRA turns
The CCR-T message of hair, CCR-T message is transmitted to the HPCRF；It is whole to receive the diameter credit control response that the HPCRF is returned
Only CCA-T message, IP-CAN sessions and the dynamic binding information of the HPCRF are deleted according to CCA-T message, CCA-T is disappeared
Breath is transmitted to the first DRA.
Wherein, the CCR-T message and the CCA-T message carry UE IP address and IMSI and HPCRF marks
Know information, the IP-CAN sessions are identified by UE IP address and IMSI.
The information synchronization system based on double DRA in domain is applied to non-roaming scene, roams home scene, local break-out
Roaming scence.
For the present invention when PCEF initiates the CCR-I message of resource bid by the first DRA to PCRF, the first DRA1 can should
Message is transmitted to another the 2nd DRA in domain, and the 2nd DRA selects a PCRF, and the PCRF is by the CCA-I message of return by the
Two DRA, the first DRA return to PCEF, and IP-CAN session informations are remained on such two DRA, so when AF initiates to apply
During session, the PCRF related to IP-CAN sessions can be addressed to from arbitrary DRA.In IP-CAN session terminations, CCR-T
Message is needed by the 2nd DRA and the first DRA, ensures that dynamic binding information can be removed on two DRA.By to basic letter
The expansion of flow is made, realizes that IP-CAN sessions are synchronous with PCRF binding informations between two DRA in domain by the way of general, is solved
Certainly due to information it is asynchronous caused by AF can not address PCRF the problem of, go for the synchronizing information between different manufacturers DRA.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is IP-CAN session establishments schematic flow sheet provided by the invention.
Fig. 2 is IP-CAN session terminations schematic flow sheet provided by the invention.
Fig. 3 is structural representation of the present invention based on double DRA information synchronization system one embodiment in domain.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
First, network entity involved in the present invention is illustrated.
PCRF（Policy and Charging Rule Function, "Policy and Charging Rules Function entity）, the function
Entity includes policy control decision and the function based on flow based charging control, and PCRF can be provided on business data flow detection, door
Control, based on QoS（Service quality）With based on flow based charging（In addition to diameter credit control）Network control function.
PCEF（Policy and Charging Enforcement Fucntion, strategy and charge execution function are real
Body）, the functional entity mainly includes detection, strategy execution and the billing function based on stream of business data flow.The functional entity
Positioned at gateway, such as GPRS（General packet radio service）GGSN（Gateway GPRS Support Node）、EPC（Evolution block core
Net）P-GW（Grouped data network gateway）、WLAN（WLAN）In be PDG（Packet data gateway）, also can independent part
Administration.
Synchronizing information scheme provided by the invention based on double DRA in domain is adapted to the situation that two DRA are disposed in domain, right
The IP-CAN session establishments flow and IP-CAN session termination flows that DRA is participated in are expanded.
IP-CAN session establishment flows are introduced first below.Pass through the first DRA in PCEF（It is set to DRA1）Initiated to PCRF
During the CCR-I message of resource bid, the first DRA1 can forward that message to another the 2nd DRA in domain（It is set to DRA2）, the
Two DRA select a PCRF（Assuming that the PCRF1 of selection）, the CCA-I message of return passed through the 2nd DRA, the first DRA by the PCRF
PCEF is returned to, IP-CAN session informations are remained on such two DRA, so when AF initiates utility cession, Ke Yicong
The PCRF related to IP-CAN sessions is addressed on arbitrary DRA.
In addition, it is necessary to explanation, the first DRA and the 2nd DRA can be HDRA（The Diameter route generations of home domain
Reason）, repeated no more subsequently to this.
Fig. 1 is IP-CAN session establishments schematic flow sheet provided by the invention.As shown in figure 1, the IP-CAN of the embodiment
Session establishment flow comprises the following steps：
Step 11, PCEF initiates CCR-I to DRA1（Credit control request is initial）Message, UE IP is carried in the message
Address, IMSI（International mobile subscriber identity）Etc. information.
In non-roaming scene and roams home（Home-routed）Under scene, PCEF can directly transmit CCR-I message
To DRA1.
In local break-out（Local Breakout）Under roaming scence, PCEF can pass through VPCRF（Visit domain strategy and
Charging regulation function entity）CCR-I message is transmitted to DRA1.It is specific as follows：
Under step 11a, roaming scence Local Breakout, CCR-I message is sent to VPCRF by PCEF；
Under step 11b, roaming scence Local Breakout, the information such as the IMSI of VPCRF in CCR-I message will
CCR-I message is transmitted to DRA1.
Step 12, DRA1 judges that CCR message is Initial request（Initial request）Type, then by CCR-I message
It is transmitted to the built-in normal PEER that attentions in domain（Equity）The DRA2 of relation.
If it should be noted that not having other DRA in domain in addition to DRA1, DRA1 can be directly according to routing table
It is transmitted to purpose PCRF.
Step 13, DRA2 receives CCR-I message, judges that CCR-I message forwards from DRA1, then not followed by
Continuous forwarding CCR-I message is to DRA1；DRA2 selects a HPCRF by information such as IMSI, IP address according to routing table（Ownership
The "Policy and Charging Rules Function entity in domain）, it is assumed here that selection is HPCRF1；And establish IP-CAN sessions and HPCRF1
Dynamic binding relationship.
It should be noted that IP-CAN sessions are identified by IP address and IMSI, and set up dynamic with HPCRF and tie up
Determine information.
Step 14, CCR-I message is transmitted to the HPCRF1 of selection by DRA2.
Step 15, HPCRF1 is by CCA-I（Diameter credit control response is initial）Message is sent to DRA2.UE is carried in the message
IP address, IMSI and HPCRF identification informations.
Step 16, CCA-I message is transmitted to DRA1 by DRA2.
Step 17, DRA1 establishes IP-CAN sessions and HPCRF1 dynamic binding relationship according to CCA-I message contents.
Step 18, CCA-I message is sent to PCEF by DRA1.
Under non-roaming scene and Home-routed roaming scences, CCA-I message can be transmitted directly to by DRA1
PCEF。
Under Local Breakout roaming scences, CCA-I message can be sent to PCEF by DRA1 by VPCRF.Tool
Body is as follows：
CCA-I message is sent to VPCRF by step 18a, DRA1；
CCA-I message is transmitted to PCEF by step 18b, VPCRF.
In addition, it is necessary to explanation, above-mentioned IP-CAN session establishments flow are equally applicable to PCEF in VPLMN（Visited place
Public land mobile network）In, pass through VDRA（Visit the Diameter route agents in domain）Position VPCRF process.AF is participated in
Flow repeats no more here with 3GPP TS29.213.
Above-described embodiment, when PCEF initiates the CCR-I message of resource bid by DRA1 to PCRF, DRA1 can disappear this
Breath is transmitted to another DRA2 in domain；DRA2 selects a PCRF, PCRF to pass through the CCA-I of return according to information such as IMSI
DRA2, DRA1 return to PCEF, and IP-CAN session informations are remained on such two DRA；, can when AF initiates utility cession
To be addressed to the PCRF related to IP-CAN sessions from arbitrary DRA.It is general by the expansion to basic signaling process, use
Mode realize that IP-CAN sessions are synchronous with PCRF binding informations between two DRA in domain, solve to cause because information is asynchronous
AF the problem of can not addressing PCRF, go for the synchronizing information between different manufacturers DRA.
IP-CAN session termination flows are described below.In IP-CAN session terminations, CCR-T message is needed by second
DRA and the first DRA, ensure that dynamic binding information can be removed on two DRA.
Fig. 2 is IP-CAN session terminations schematic flow sheet provided by the invention.As shown in Fig. 2 the IP-CAN of the embodiment
Session termination flow comprises the following steps：
Step S21, PCEF initiate CCR-T to DRA1（Credit control request terminates）Message, the message carry UE IP
Address, IMSI, HPCRF identification information（It is assumed here that it is HPCRF1）.
Under non-roaming scene and Home-routed roaming scences, CCR-T message can be transmitted directly to by PCEF
DRA1。
Under Local Breakout roaming scences, CCR-T message can be transmitted to DRA1 by PCEF by VPCRF.Tool
Body is as follows：
Step S21a, under roaming scence Local Breakout, CCR-T message is sent to VPCRF by PCEF；
Step S21b, under roaming scence Local Breakout, CCR-T message is transmitted to DRA1 by VPCRF.
Step S22, DRA1 judge that CCR is Termination request（Terminate request）Type, then CCR-T is disappeared
Breath is transmitted to the DRA2 of the built-in normal PEER relations of attentioning in domain.
If it should be noted that not having other DRA in domain in addition to DRA1, DRA1 can be directly according to routing table
It is transmitted to purpose PCRF.
Step S23, DRA2 receive CCR-T message, judge what CCR-T message forwarded from DRA1, then no longer
Continue to forward CCR-T message that CCR-T message is directly forwarded into HPCRF1 to DRA1.
Step S24, HPCRF1 are by CCA-T（Diameter credit control response terminates）Message is sent to DRA2, and the message carries UE
IP address, IMSI, HPCRF identification information（It is assumed here that it is HPCRF1）.
Step S25, DRA2 delete the dynamic binding relationship between IP-CAN sessions and HPCRF1 according to CCA-T message.
CCA-T message is forwarded to DRA1 by step S26, DRA2.
Step S27, DRA1 delete the dynamic binding relationship between IP-CAN sessions and HPCRF1 according to CCA-T message.
CCA-T message is sent to PCEF by step S28, DRA1.
Under non-roaming scene and Home-routed roaming scences, CCA-T message can be transmitted directly to by DRA1
PCEF。
Under Local Breakout roaming scences, CCA-T message can be sent to PCEF by DRA1 by VPCRF.Tool
Body is as follows：
CCA-T message is sent to VPCRF by step S28a, DRA1；
CCA-T message is sent to PCEF by step S28b, VPCRF.
In addition, it is necessary to explanation, above-mentioned IP-CAN session terminations flow are equally applicable to PCEF in VPLMN, passed through
VDRA positions VPCRF process.AF participates in flow with 3GPP TS29.213, repeats no more here.
Above-described embodiment, in IP-CAN session terminations, CCR-T message is needed by DRA2 and DRA1, ensures that dynamic is tied up
Determining information can remove on two DRA.By the expansion to basic signaling process, two are realized in domain by the way of general
IP-CAN sessions are synchronous with PCRF binding informations between DRA, and solving AF caused by because information is asynchronous can not address PCRF's
Problem, suitable for the synchronizing information between different manufacturers DRA.
Fig. 3 is structural representation of the present invention based on double DRA information synchronization system one embodiment in domain.Such as Fig. 3 institutes
Show, the system of the embodiment includes：First DRA31 and the 2nd DRA32.
In IP-CAN session establishments, the first DRA is used to receive the letter that strategy and charging execution function entity PCEF are sent
With the initial CCR-I message of control data, CCR-I message is transmitted to the 2nd DRA；The CCA-I for receiving the 2nd DRA forwardings disappears
Breath, IP-CAN sessions and HPCRF dynamic binding information are established according to CCA-I message；2nd DRA is used to receive the first DRA turns
The CCR-I message of hair, the "Policy and Charging Rules Function entity HPCRF of home domain is selected according to CCR-I message, establish IP companies
The dynamic binding information into network IP-CAN sessions and HPCRF is connected, CCR-I message is transmitted to HPCRF；HPCRF is received to return
The diameter credit control returned responds initial CCA-I message, and CCA-I message is transmitted into the first DRA.
Wherein, CCR-I message carries the IP address and international mobile subscriber identity IMSI, IP-CAN of user equipment (UE)
Session is identified by UE IP address and IMSI, and CCA-I message carries UE IP address and IMSI and HPCRF marks
Information.
In IP-CAN session terminations, the first DRA is additionally operable to receive the credit control request termination CCR-T that PCEF is sent
Message, CCR-T message is transmitted to the 2nd DRA；The CCA-T message of the 2nd DRA forwardings is received, is deleted according to CCA-T message
IP-CAN sessions and HPCRF dynamic binding information；2nd DRA is additionally operable to receive the CCR-T message of the first DRA forwardings, will
CCR-T message is transmitted to HPCRF；Receive the diameter credit control response that HPCRF is returned and terminate CCA-T message, disappeared according to CCA-T
Breath deletes IP-CAN sessions and HPCRF dynamic binding information, and CCA-T message is transmitted into the first DRA.
Wherein, CCR-T message and CCA-T message carry UE IP address and IMSI and HPCRF identification informations,
IP-CAN sessions are identified by UE IP address and IMSI.
Information synchronization system based on double DRA in domain is applied to non-roaming scene, roams home scene, local break-out roaming
Scene.
For the present invention when PCEF initiates the CCR-I message of resource bid by the first DRA to PCRF, the first DRA1 can should
Message is transmitted to another the 2nd DRA in domain, and the 2nd DRA selects a PCRF, and the PCRF is by the CCA-I message of return by the
Two DRA, the first DRA return to PCEF, and IP-CAN session informations are remained on such two DRA, so when AF initiates to apply
During session, the PCRF related to IP-CAN sessions can be addressed to from arbitrary DRA.In IP-CAN session terminations, CCR-T
Message is needed by the 2nd DRA and the first DRA, ensures that dynamic binding information can be removed on two DRA.By to basic letter
The expansion of flow is made, realizes that IP-CAN sessions are synchronous with PCRF binding informations between two DRA in domain by the way of general, is solved
Certainly due to information it is asynchronous caused by AF can not address PCRF the problem of, go for the synchronizing information between different manufacturers DRA.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of information synchronization method based on Yu Neishuan Diameter route agent DRA, including：
First DRA receives the initial CCR-I message of credit control request that strategy and charging execution function entity PCEF are sent, will
CCR-I message is transmitted to the 2nd DRA；
2nd DRA receives the CCR-I message of the first DRA forwardings, selects the strategy of home domain and charging to advise according to CCR-I message
Then functional entity HPCRF, IP connections access network IP-CAN sessions and the dynamic binding information of the HPCRF are established, by CCR-
I message is transmitted to the HPCRF；
2nd DRA receives the diameter credit control that the HPCRF is returned and responds initial CCA-I message and store, and CCA-I message is turned
Issue the first DRA；
First DRA receive the 2nd DRA forwarding CCA-I message, according to CCA-I message establish IP-CAN sessions with it is described
HPCRF dynamic binding information.
2. according to the method for claim 1, it is characterised in that
The CCR-I message carries the IP address and international mobile subscriber identity IMSI of user equipment (UE),
The IP-CAN sessions are identified by UE IP address and IMSI,
CCA-I message carries UE IP address and IMSI and HPCRF identification informations.
3. according to the method for claim 1, it is characterised in that also include：
First DRA receives the credit control request that PCEF is sent and terminates CCR-T message, and CCR-T message is transmitted into second
DRA；
2nd DRA receives the CCR-T message of the first DRA forwardings, and CCR-T message is transmitted into the HPCRF；
2nd DRA receives the diameter credit control response that the HPCRF is returned and terminates CCA-T message, is deleted according to CCA-T message
IP-CAN sessions and the dynamic binding information of the HPCRF, the first DRA is transmitted to by CCA-T message；
First DRA receive the 2nd DRA forwarding CCA-T message, according to CCA-T message delete IP-CAN sessions with it is described
HPCRF dynamic binding information.
4. according to the method for claim 3, it is characterised in that
The CCR-T message and the CCA-T message carry UE IP address and IMSI and HPCRF identification informations,
The IP-CAN sessions are identified by UE IP address and IMSI.
5. according to the method described in claim any one of 1-4, it is characterised in that methods described is applied to non-roaming scene, returned
Belong to roaming scence, local break-out roaming scence.
6. a kind of information synchronization system based on Yu Neishuan Diameter route agent DRA, including：First DRA and the 2nd DRA；
First DRA is used to receive strategy and the initial CCR-I of credit control request of charging execution function entity PCEF transmissions disappears
Breath, the 2nd DRA is transmitted to by CCR-I message；The CCA-I message of the 2nd DRA forwardings is received, is established according to CCA-I message
IP-CAN sessions and "Policy and Charging Rules Function entity HPCRF dynamic binding information；
2nd DRA is used for the CCR-I message for receiving the first DRA forwardings, according to CCR-I message selects home domain
HPCRF, IP connections access network IP-CAN sessions and the dynamic binding information of the HPCRF are established, CCR-I message is forwarded
To the HPCRF；Receive the diameter credit control that the HPCRF is returned to respond initial CCA-I message and store, by CCA-I message
It is transmitted to the first DRA.
7. system according to claim 6, it is characterised in that
The CCR-I message carries the IP address and international mobile subscriber identity IMSI of user equipment (UE),
The IP-CAN sessions are identified by UE IP address and IMSI,
CCA-I message carries UE IP address and IMSI and HPCRF identification informations.
8. system according to claim 6, it is characterised in that
First DRA is additionally operable to receive the credit control request termination CCR-T message that PCEF is sent, and CCR-T message is transmitted to
2nd DRA；The CCA-T message of the 2nd DRA forwardings is received, IP-CAN sessions and the HPCRF's are deleted according to CCA-T message
Dynamic binding information；
2nd DRA is additionally operable to receive the CCR-T message of the first DRA forwardings, and CCR-T message is transmitted into the HPCRF；Receive
The diameter credit control response that the HPCRF is returned terminates CCA-T message, according to CCA-T message delete IP-CAN sessions with it is described
HPCRF dynamic binding information, CCA-T message is transmitted to the first DRA.
9. system according to claim 8, it is characterised in that
The CCR-T message and the CCA-T message carry UE IP address and IMSI and HPCRF identification informations,
The IP-CAN sessions are identified by UE IP address and IMSI.
10. according to the system described in claim any one of 6-9, it is characterised in that the system is applied to non-roaming scene, returned
Belong to roaming scence, local break-out roaming scence.
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| CN201210583530.4A CN103906223B (en) | 2012-12-28 | 2012-12-28 | Information synchronization method and system based on double DRA in domain |
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| CN105530235A (en) * | 2014-10-27 | 2016-04-27 | 中国移动通信集团公司 | Session routing information verifying method and device |
| CN105635042B (en) * | 2014-10-28 | 2019-04-23 | 中国移动通信集团公司 | Time-based session routing iinformation consistency desired result method and device |
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