CN103209497B - A kind of strategy session method for building up and device - Google Patents
A kind of strategy session method for building up and device Download PDFInfo
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- CN103209497B CN103209497B CN201210008642.7A CN201210008642A CN103209497B CN 103209497 B CN103209497 B CN 103209497B CN 201210008642 A CN201210008642 A CN 201210008642A CN 103209497 B CN103209497 B CN 103209497B
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Abstract
The invention discloses a kind of strategy session method for building up and device.In the present invention, UE is linked into EPC by WLAN or Home eNodeB and establishes PDN connections, after P GW and PCRF establish the strategy session of Gx interfaces, PCRF or BPCF decides whether to need to establish the IP connections access net IP CAN sessions on S9a interfaces according to the local information that the user received accesses, and PCRF or BPCF decide whether to establish the IP CAN sessions according to court verdict.By the present invention solve in the prior art, when under same RG multiple UE establish multiple IP CAN sessions in the case of application layer AF download related service information when, the DRA out of existing EPC domains can not find the technical problem of correct PCRF.
Description
Technical field
The present invention relates to the method for building up and device of moving communicating field, more particularly to a kind of strategy session.
Background technology
Point of the evolution of third generation partner program (3rd Generation Partnership Project, 3GPP)
System unite (Evolved Packet System, EPS) by evolution Universal Terrestrial Radio Access Network (Evolved Universal
Terrestrial Radio Access Network, E-UTRAN), mobile management unit (Mobility Management
Entity, MME), gateway (Serving Gateway, S-GW), grouped data network gateway (Packet Data
Network Gateway, P-GW) and home subscriber server (Home Subscriber Server, HSS) composition.
EPS supports the intercommunication (as shown in Figure 1) with non-3 GPP system, wherein, the intercommunication with non-3 GPP system passes through S2a/
B/c interfaces realize that P-GW is as the anchor point between 3GPP and non-3 GPP system.In the system architecture diagram of EPS, non-3 GPP system connects
Enter and be divided into trustless non-3 GPP access and trusted non-3 GPP access；Wherein, trustless non-3 GPP access need to pass through and drill
Into packet data gateway (Evolved Packet Data Gateway, ePDG) be connected with P-GW, connecing between ePDG and P-GW
Mouth is S2b；Trusted non-3 GPP access can be directly connected by S2a interfaces with P-GW, and S2a interfaces use PMIPv6 (Proxy
Mobile IP version 6, proxy mobile IP protocol version 6) agreement progress information exchange；In addition, S2c interfaces provide use
User plane relevant control and mobility support of the family equipment (User Equipment, UE) between P-GW, its shifting supported
Mobility management agreement is to support mobile IP v 6 (the Mobile IPv6Support for Dual Stack Hosts and of double stacks
Routers, DSMIPv6), it can be used for trustless non-3 gpp and trusted non-3 GPP access.
Wireless LAN (Wireless Local Area Network, WLAN) can be used as non-3 GPP system, the above
S2b patterns or S2c patterns the access EPC (S2a patterns just under study for action, wouldn't belong to the research object of the present invention) stated, this
It is related to technology (Fixed Mobile Convergence, FMC) problem of fixed network, the interconnection and interflow of mobile network and fusion.Its
In, interconnect as follows with the technology introduction of the network integration：
1) WLAN accesses and offload technologies
When terminal accesses evolution block core net (evolved Packet Core, EPC) by WLAN, such as Fig. 2 institutes
Show.It is its distribution that UE obtains wlan network (or referred to as fixed network, BBF networks, BBF accesses network, WIFI networks etc.) first
The local address (UE local IP address) of UE.
Terminal UE establishes the PDN connections to EPC with the local ip address, and P-GW can also be for terminal UE with distributing an IP
Location.Wherein, the IP address of the EPC distribution of terminal is used to pass through P-GW communication with the outside world, when data pass through wlan network, can also use
Local ip address carries out data packet data encapsulation again, this partial service data is known as EPC-routed business datums, such as
Passed through in figure shown in P-GW dotted lines.Meanwhile terminal can also directly pass through local ip address communication with the outside world, this partial service data
Referred to as shunt " offload " business datum, as in figure directly from BNG/BRAS (Broadband network gateway/
Broadband Remote Access Server, wideband network gateway/Broadband Remote Access Server) it is pointing directly at extranets
Shown in the arrow of network.
To above-mentioned UE local ip address you need to add is that, RG (Residential Gateway, family in existing network
Front yard gateway) there are two kinds of operating modes：Route pattern and bridge mode.When network RG is operated in bridge mode, UE access WLAN
The IP address obtained during network is exactly the local ip address of UE；When RG is operated in route pattern, there are NA (P) T on RG
(Network Address (Port) Translation, NA (P) T), UE are to be distributed by RG for it from the address that WLAN is obtained,
The address is private address, but the address corresponds to the additional a port number of local address that RG is obtained from wlan network, the RG
The additional port numbers of local address establish PDN connections to EPC for terminal UE, and the additional port numbers of the local address can determine
The access of the position UE, the sometimes also local ip address of abbreviation UE, should actually be referred to as local ip address and the end of UE
Slogan (if can obtain), as long as in the case that person skilled in art should be understood that port numbers, which is to pass
It is sent to EPC's.
It should also be noted that, due under the scene that RG does router, if terminal from BNG/BRAS directly externally mutually
Logical data (i.e. offload), network side can only perceive RG rather than directly perceive the UE below RG, therefore cannot under such a scene
Ensureing the service quality QoS of terminal, that is to say, that RG is done under router scene, to the business datum of offload not guaranteed qos,
Without policy control.
2) Home eNodeB (Home (evolved) Node B, H (e) NB) access technology
H (e) NB technologies do not show in figure, do simple introduction to it at this, and H (e) NB are by WLAN, or are known as
Fixed network network insertion EPC's, the data for accessing the UE of H (e) NB are by the WLAN/ fixed network network carryings.Therefore it is similar to
WLAN access technologies, there are a same term " local ip address and port numbers (if can obtain) of H (e) NB ", the address
The access of current H (e) NB/ terminal UEs can also be positioned with port numbers (if can obtain).
Herein when using title " Home eNodeB ", the Home eNodeB HeNB of the either evolution of EPC system is referred both to, or
It is 3G (3rdGeneration, 3G (Third Generation) Moblie) Home eNodeB HNB in system.
3) tactful intercommunication and integration technology
Either access from WLAN or accessed from H (e) NB, no matter business datum is directly to be shunted from BNG/BRAS
(offload) external network is arrived, EPC is still routed to and external network, business datum used in terminal UE is routed to by P-GW
The resource of wlan network will be taken.Therefore in order to ensure QoS of the business datum in transmitting procedure, in existing technology,
The policy control of EPC networks and regulation function entity (Policy Control and Rule Function, PCRF) and WLAN
It is (former that S9a is devised between the broadband policy controlled entity BPCF (Broadband Policy Control Function) of network
Name S9*, through the S9a that renames) and interface, it is used for transmission the strategy of intercommunication.
Wherein, for the business datum transmitted by H (e) NB systems, and by WLAN and via the business number of EPC routes
According to, " gateway control session (Gateway Control Session) " is established on S9a interfaces, be business datum QoS protect
Demonstrate,prove intercommunication strategy；Business datum for being routed directly to external network from the BNG/BRAS of wlan network, builds on S9a interfaces
IP connections access net (IP-CAN, IP Connectivity Access Network) session has been stood to protect for the QoS of business datum
Demonstrate,prove intercommunication strategy.Referring to Fig. 3.
The scene that attached drawing 3 is based on is, terminal UE accesses EPC by wlan network and establishes PDN connections (wlan network is not
Under the scene for supporting the certification of 3GPP), or terminal UE is linked into EPC by H (e) NB and establishes PDN connections, P-GW and PCRF
Establish the strategy session of Gx interfaces, PCRF have received at P-GW UE local ip address and port numbers (if can obtain) or
After H (e) NB local ip address and port numbers (if can obtain), PCRF initiates gateway to the BPCF of wlan network by S9a interfaces
Control session establishment operation.
Step 301：The gateway control session that PCRF is initiated to BPCF on S9a interfaces establishes operation, and UE local address
BPCF has been sent to port numbers (if can obtain) information.Concrete operations are that PCRF sends triggering (trigger) to BPCF,
BPCF sends request (request) to PCRF, and PCRF responds response (response) to BPCF.Wherein the gateway control session is
" by the business datum service of EPC routes ".
Step 302：It is subject to the triggering of step 301, other PCRF of BPCF to the PCRF or into EPC domains (are depended on
The selection mechanism of PCRF) initiate S9a interfaces on IP-CAN session establishments operation.Asked specifically, BPCF is sent to PCRF
(request), PCRF responds response (response) to BPCF.Wherein the IP-CAN sessions are WLAN shunt (offload)
Business datum service.
In above-mentioned background technology, there are three kinds of sub-scenes：1) terminal UE is linked into EPC by WLAN, RG in wlan network
On there are NA (P) T；2) terminal UE is linked into EPC by WLAN, and NA (P) T is not present on RG in wlan network；3) terminal UE is led to
Cross H (e) NB and be linked into EPC.After the process step that Fig. 3 is performed under these three scenes, one can be established between BPCF and PCRF
IP-CAN sessions.When WLAN is there are when NA (P) T, the UE of multiple access WLAN can share same local ip address (RG
Publicly-owned address), therefore to multiple UE under same RG, multiple IP-CAN sessions may be finally established, in this way, when application layer
When AF (application function, application function) downloads related service information, the DRA out of existing EPC domains
(diameter routing agent, diameter route agents) just can not find correct PCRF, (DRA can only be looked for based on address
PCRF, it is impossible to look for PCRF by port numbers), session association mistake thus occurs.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of strategy session method for building up and device, for solving
In the case that multiple UE establish multiple IP-CAN sessions under same RG, when the AF of application layer downloads related service information, from
DRA in existing EPC domains can not find the technical problem of correct PCRF.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of strategy session method for building up, this method include：
Policy control decides whether to need to build with BPCF with regulation function entity PCRF according to the local information that user accesses
IP connections access net IP-CAN sessions on vertical S9a interfaces, or the local information accessed by the BPCF users sent according to PCRF
Decide whether to need to establish the IP-CAN sessions on S9a interfaces with PCRF；
Determining to need to establish the access net IP-CAN sessions of the IP connections on the S9a interfaces between the PCRF and BPCF
When, perform correspondingly IP-CAN session establishments and operate.
Further, before the PCRF or described BPCF perform judgement, the method further includes：
User terminal UE is linked into evolution block core net EPC by Wireless LAN WLAN or Home eNodeB and establishes
Packet data network PDN connections, grouped data network gateway P-GW and the PCRF establish the strategy session of Gx interfaces, and PCRF is obtained
Take the local information of family access.
Further, the local information of user's access includes the local ip address and port numbers of UE, or only includes UE
Local ip address do not include port numbers, or the local ip address and port numbers of the Home eNodeB accessed comprising user, or only
The local ip address of the Home eNodeB accessed comprising user does not include port numbers.
Further, the PCRF decides whether to need to establish S9a interfaces with BPCF according to the local information that user accesses
On the methods of IP-CAN sessions be：
If the local information of user's access is the local ip address of Home eNodeB or the local ip address of Home eNodeB
And port numbers, then judge not establishing the IP-CAN sessions；
If the local information of user's access includes the local ip address and port numbers of UE, judge not establish described
IP-CAN sessions；
If only the local ip address comprising UE does not include port numbers to the local information of user's access, judge that needs are built
Stand the IP-CAN sessions；
If the local information accessed according to the user judges to need to establish the IP-CAN sessions, but the signing of the UE
Information forbids the UE to be shunted, then PCRF finally determines that the IP-CAN sessions need not be established.
Based on a specific embodiment, further, needs are determined whether according to the local information that user accesses in PCRF
After establishing the IP-CAN sessions on S9a interfaces with BPCF, whether PCRF will need to establish the court verdict of the IP-CAN sessions
Information is sent to BPCF；BPCF is performed according to the court verdict information or is not performed the IP-CAN session establishments and operates.
Based on a specific embodiment, further, the BPCF is established the net on S9a interfaces be subject to the PCRF initiations
The triggering of control session operation is closed, initiates the IP-CAN session establishments operation；
The PCRF decides whether to need to establish the IP-CAN on S9a interfaces with BPCF according to the local information that user accesses
Session, and operated according to the IP-CAN session establishments that court verdict determines to receive or refuse the BPCF initiations.
Based on a specific embodiment, further, the local information that user accesses is passed through gateway control meeting by the PCRF
Words operation is sent to BPCF, and BPCF decides whether to need to establish on S9a interfaces with PCRF according to the local information that user accesses
IP-CAN sessions, BPCF decide whether to establish the IP-CAN sessions according to following condition A to D：
If A, the local information of user access is the local ip address of Home eNodeB or the local IP of Home eNodeB
The IP-CAN sessions are not established in location and port numbers, then BPCF judgements；
If B, the local information of user's access is to include the local ip address and port numbers of UE, BPCF judges not build
Stand the IP-CAN sessions；
If C, only the local ip address comprising UE does not include port numbers to the local information of user's access, BPCF judges
Need to establish the IP-CAN sessions；
If D, the local information accessed according to the user judges to need to establish the IP-CAN sessions, but PCRF is sent to
The UE is forbidden to be shunted in the UE signing informations of BPCF, then BPCF finally judges not establishing the IP-CAN sessions；
In the case where PCRF initiates to establish the triggering of gateway control session operation on S9a interfaces to BPCF, the BPCF foundations
The result of the judgement performs or does not perform the IP-CAN session establishments operation.
The present invention also provides a kind of strategy session to establish device, which includes：
Judging module, positioned at PCRF or BPCF, the local information for being accessed according to user decides whether to need to establish
The IP-CAN sessions on S9a interfaces between PCRF and BPCF, and indicate that IP-CAN session establishment modules are held according to court verdict
Row does not perform the IP-CAN session establishments operation, or instruction gateway control session initiation module receives or refuse the IP-
The foundation request of CAN sessions；
Gateway control session initiation module, positioned at PCRF, builds for initiating the gateway control session on S9a interfaces to BPCF
Vertical operation；
IP-CAN session establishment modules, to PCRF under BPCF, the triggering for establishing operation in gateway control session
Initiate the operation of IP-CAN session establishments.
Further, the local information of user's access includes the local ip address and port numbers of UE, or only includes UE
Local ip address do not include port numbers, or the local ip address and port numbers of the Home eNodeB accessed comprising user, or only
The local ip address of the Home eNodeB accessed comprising user does not include port numbers；The judging module perform the judgement according to
According to for：
If the local information of user's access is the local ip address of Home eNodeB or the local ip address of Home eNodeB
And port numbers, then judge not establishing the IP-CAN sessions；
If the local information of user's access includes the local ip address and port numbers of UE, judge not establish described
IP-CAN sessions；
If only the local ip address comprising UE does not include port numbers to the local information of user's access, judge that needs are built
Stand the IP-CAN sessions；
If the local information accessed according to the user judges to need to establish the IP-CAN sessions, but the signing of the UE
Information forbids the UE to be shunted, then PCRF finally judges that the IP-CAN sessions need not be established.
Further, in the case where the judging module is located at PCRF, described device further includes：
Court verdict sending module, positioned at PCRF, for initiating the gateway in the gateway control session initiation module
After controlling session establishment operation, the court verdict of the judging module is sent to BPCF；
The IP-CAN session establishments module performs according to the court verdict or does not perform the IP-CAN sessions and builds
Vertical operation.
Further, in the case where the judging module is located at PCRF, described device further includes：
IP-CAN conversational response judging modules, positioned at PCRF, for initiating net in the gateway control session initiation module
After closing control session establishment operation, and IP-CAN session establishments module initiation IP-CAN session establishment operations, according to institute
The court verdict for stating judging module determines to receive or refuse the IP-CAN session establishments that the IP-CAN session establishments module is initiated
Operation.
Further, in the case where the judging module is located at BPCF, the gateway control session initiation module is initiated
After gateway control session establishes operation, the judging module performs judgement, and the IP-CAN session establishments module is sentenced according to
Certainly the court verdict of module determines to perform or do not perform the IP-CAN session establishments operation.
In the present invention, UE is linked into EPC by WLAN or Home eNodeB and establishes PDN connections, is established in P-GW and PCRF
After the strategy session of Gx interfaces, PCRF or BPCF decide whether to need to establish S9a interfaces according to the local information that user accesses
On IP connections access net IP-CAN sessions, PCRF or BPCF decide whether to establish the IP-CAN sessions according to court verdict.
Solved in the prior art by the present invention, in the case that multiple UE establish multiple IP-CAN sessions under same RG, application layer
AF download related service information when, the DRA out of existing EPC domains can not find the technical problem of correct PCRF.
Brief description of the drawings
Fig. 1 is the 3GPP networks according to correlation technique and the network structure of non-3 GPP network intercommunication；
Fig. 2 is to carry out service distributing by WLAN according to the mobile terminal of correlation technique and access the network structure of EPC；
Fig. 3 is from session establishment mechanism stream on S9a interfaces during WLAN accesses/H (e) NB accesses according to the terminal of correlation technique
Cheng Tu；
Fig. 4 is 1 flow chart according to embodiments of the present invention；
Fig. 5 is 2 flow chart according to embodiments of the present invention；
Fig. 6 is 3 flow chart according to embodiments of the present invention.
Embodiment
It is by the following examples and referring to the drawings, right for the object, technical solutions and advantages of the present invention are more clearly understood
The present invention is further described.
Embodiment 1
Fig. 4 be the embodiment provide strategy session method for building up flow chart, the embodiment based on scene be：Terminal
UE accesses EPC by wlan network and establishes PDN connections (wlan network is not supported under the scene of the certification of 3GPP), or terminal
UE is linked into EPC by H (e) NB and establishes PDN connections, and P-GW and PCRF establish the strategy session of Gx interfaces, and PCRF is from P-
Have received at GW UE local ip address and port numbers (if can obtain) or H (e) NB local ip address and port numbers (if can
) after, PCRF initiates gateway control session by S9a interfaces to the BPCF of wlan network and establishes operation.The present embodiment provides plan
Slightly session establishing method comprises the following steps：
Step 401：Terminal UE is accessed from WLAN or accessed from H (e) NB.
Step 402：The PDN connections of EPC are established by terminal, the strategy session of Gx interfaces is established in P-GW and PCRF
Afterwards, PCRF have received the local information of user's access, the local information of user access, or the local ip address of UE and
Port numbers, the or only local ip address comprising UE does not include port numbers, or the local of H (e) NB that user is accessed
IP address and port numbers (if can obtain).
Step 402a：PCRF does following judgement according to the local information that received user accesses：
If 1) local ip address and port numbers (if can obtain) that the local information of received user's access is H (e) NB,
Then PCRF judges that the IP-CAN sessions on S9a interfaces need not be established with BPCF；
If 2) local information of received user's access includes the local ip address and port numbers of UE, PCRF judges not
Need to establish the IP-CAN sessions on S9a interfaces with BPCF；
3) only if the local ip address comprising UE does not include port numbers, PCRF to the local information of received user's access
Judge to need to establish the IP-CAN sessions on S9a interfaces with BPCF.
If 4) local information accessed according to user judges to need to establish the IP-CAN sessions on S9a interfaces with BPCF,
But the UE is forbidden to carry out offload in the signing information of UE, then PCRF finally judges to establish with BPCF on S9a interfaces
IP-CAN sessions.
Step 403：The gateway control session that PCRF is actively initiated to BPCF on S9a interfaces establishes operation, and user is connect
The local information entered is sent to BPCF.Meanwhile PCRF the judging result of 402a by instruction or other modes, report and submit to
BPCF。
Step 404：Be subject to the triggering of step 403, and performed according to the 403 information BPCF that either reports and submits of instruction or
The IP-CAN session establishments operation on S9a interfaces is not performed.
Embodiment 2
The embodiment, difference lies in the embodiment, is sent based on scene same as Example 1 by BPCF according to PCRF
User access local information decide whether to need to establish IP-CAN sessions, referring to Fig. 5, this method comprises the following steps：
Step 501：Terminal UE is accessed from WLAN or accessed from H (e) NB.
Step 502：The PDN connections of EPC are established by terminal, the strategy session of Gx interfaces is established in P-GW and PCRF
Afterwards, PCRF have received the local information of user's access.
Step 503：The gateway control session that PCRF is actively initiated to BPCF on S9a interfaces establishes operation, and user is connect
The local information entered has been sent to BPCF.
Step 503a：BPCF does following judgement according to the local information that received user accesses：
If 1) local ip address and port numbers (if can obtain) that the local information of received user's access is H (e) NB,
Then BPCF judges that the IP-CAN sessions on S9a interfaces need not be established with PCRF；
If 2) local information of received user's access includes the local ip address and port numbers of UE, BPCF judges not
Need to establish the IP-CAN sessions on S9a interfaces with PCRF；
3) only if the local ip address comprising UE does not include port numbers, BPCF to the local information of received user's access
Judge to need to establish the IP-CAN sessions on S9a interfaces with PCRF；
If 4) local information accessed according to user judges to need to establish the IP-CAN sessions on S9a interfaces with PCRF,
But PCRF, which is sent in the UE signing informations of BPCF, forbids the UE to carry out offload, then BPCF finally judges not establish with PCRF
IP-CAN sessions on S9a interfaces.
Step 504：It is subject to the triggering of step 503, and S9a is performed or do not perform according to the court verdict of 503a, BPCF
IP-CAN session establishments operation on interface.
Embodiment 3
The embodiment, difference lies in the embodiment, BPCF hairs is received in PCRF based on scene same as Example 1
After that rises establishes IP-CAN session requests, then by PCRF decide whether to need to establish IP-CAN according to the local information that user accesses
Session, and operated according to the IP-CAN session establishments that court verdict determines to receive or refuse the BPCF initiations.Referring to the step of Fig. 6
Rapid flow.
Step 601：Terminal UE is accessed from WLAN or accessed from H (e) NB.
Step 602：PDN connections to EPC are established by terminal, the strategy session of Gx interfaces is established in P-GW and PCRF
Afterwards, PCRF have received the local information of user's access.
Step 603：The gateway control session that PCRF is initiated to BPCF on S9a interfaces establishes operation.
Step 604：It is subject to the triggering of step 603, BPCF initiates the IP-CAN session establishments operation on S9a interfaces.
Step 604a：The local information that PCRF is accessed according to received user adjudicates (judgement mode and embodiment 1 are same)
No needs establish the IP-CAN sessions on S9a interfaces with BPCF, and determine that receiving or refuse the BPCF sends out according to court verdict
The IP-CAN session establishments operation risen.
Embodiment 4
Based on the technical solution of the scene of embodiment 1, in conjunction with the embodiments 1,2 and 3, the present invention also provides a kind of strategy session
Device is established, which includes：
Judging module, positioned at PCRF or BPCF, for being linked into EPC simultaneously by WLAN or Home eNodeB in user terminal UE
PDN connections are established, and after P-GW and PCRF establish the strategy session of Gx interfaces, the local information accessed according to user is adjudicated
Whether need to establish the IP-CAN sessions on the S9a interfaces between PCRF and BPCF；And IP-CAN meetings are indicated according to court verdict
Words establish module and perform or do not perform IP-CAN session establishments operation, or instruction gateway control session initiation module receive or
Refuse the foundation request of the IP-CAN sessions；
Gateway control session initiation module, positioned at PCRF, builds for initiating the gateway control session on S9a interfaces to BPCF
Vertical operation；
IP-CAN session establishment modules, to PCRF under BPCF, the triggering for establishing operation in gateway control session
Initiate the operation of IP-CAN session establishments.
Preferably, the local information of user's access includes the local ip address and port numbers of UE, or only includes UE's
Local ip address does not include port numbers, or the local ip address and port numbers of the Home eNodeB accessed comprising user, or only wraps
The local ip address of the Home eNodeB accessed containing user does not include port numbers；The judging module is according to following Rule of judgment A-
D performs the judgement：
If A, the local information of user's access is the local ip address and port numbers (if can obtain) of Home eNodeB,
The IP-CAN sessions are not established in judgement；
If B, the local information of user's access includes the local ip address and port numbers of UE, judge not establish described
IP-CAN sessions；
If C, only the local ip address comprising UE does not include port numbers to the local information of user's access, judge to need
Establish the IP-CAN sessions；
D, if the local information accessed according to the user judges to need to establish the IP-CAN sessions, but the label of the UE
About information forbids the UE to be shunted, then PCRF finally judges that the IP-CAN sessions need not be established.
The step flow of embodiment 1 is preferably based on, in the case where the judging module is located at PCRF, described device
Further include：
Court verdict sending module, positioned at PCRF, for initiating the gateway in the gateway control session initiation module
After controlling session establishment operation, the court verdict of the judging module is sent to BPCF；
The IP-CAN session establishments module performs according to the court verdict or does not perform the IP-CAN sessions and builds
Vertical operation.
The step flow of embodiment 3 is preferably based on, the judging module is located under the scene of PCRF, and described device is also
Including：
IP-CAN conversational response judging modules, positioned at PCRF, for initiating net in the gateway control session initiation module
After closing control session establishment operation, and IP-CAN session establishments module initiation IP-CAN session establishment operations, according to institute
The court verdict for stating judging module determines to receive or refuse the IP-CAN session establishments that the IP-CAN session establishments module is initiated
Operation.
The step flow of embodiment 2 is preferably based on, the judging module is located under the scene of BPCF, the gateway control
After session setup module processed initiates gateway control session foundation operation, the judging module performs judgement, the IP-CAN sessions
Establish module and determine that performing or do not perform the IP-CAN session establishments operates according to the court verdict of the judging module.
Technical scheme is equally applicable to the intercommunicating system after evolution, in the system after evolution, BPCF collection
Into having arrived in PCRF, therefore BPCF no longer occurs in Organization Chart and flow chart, is no longer that S9a connects between PCRF and BNG/BRAS
Mouthful, and it is Gxd interfaces to change into, in this case, gateway control session is established by Gxd interfaces between PCRF and BNG/BRAS
With IP-CAN sessions, corresponding the, in above-described embodiment should by the BPCF step flows completed and corresponding functions of modules from
It has been transferred on BPCF on BNG/BRAS.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.Combined in this way, the present invention is not restricted to any specific hardware and software.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of strategy session method for building up, it is characterised in that this method includes：
Policy control decides whether to need to establish S9a with BPCF with regulation function entity PCRF according to the local information that user accesses
IP-CAN sessions are netted in IP connections access on interface, or the local information judgement of the user's access sent by BPCF according to PCRF is
No needs establish the IP-CAN sessions on S9a interfaces with PCRF；
When determining to need to establish the access net IP-CAN sessions of the IP connections on the S9a interfaces between the PCRF and BPCF, hold
Correspondingly IP-CAN session establishments operate row；
The local information of user's access includes the local ip address and port numbers of UE, or only includes the local ip address of UE not
Comprising port numbers, or the local ip address and port numbers of the Home eNodeB accessed comprising user, or only accessed comprising user
The local ip address of Home eNodeB do not include port numbers.
2. according to the method described in claim 1, it is characterized in that, the PCRF or described BPCF perform judgement before, institute
The method of stating further includes：
User terminal UE is linked into evolution block core net EPC by Wireless LAN WLAN or Home eNodeB and establishes packet
Data network PDN connections, grouped data network gateway P-GW and the PCRF establish the strategy session of Gx interfaces, and PCRF, which is obtained, to be used
The local information of family access.
3. according to the method described in claim 1, the PCRF according to the local information that user accesses decide whether need with
The method for the IP-CAN sessions that BPCF is established on S9a interfaces is：
If the local information of user's access is the local ip address of Home eNodeB or local ip address and the end of Home eNodeB
Slogan, then judge not establishing the IP-CAN sessions；
If the local information of user's access includes the local ip address and port numbers of UE, judge not establish the IP-CAN
Session；
If only the local ip address comprising UE does not include port numbers to the local information of user's access, judgement needs to establish institute
State IP-CAN sessions；
If the local information accessed according to the user judges to need to establish the IP-CAN sessions, but the signing information of the UE
The UE is forbidden to be shunted, then PCRF finally determines that the IP-CAN sessions need not be established.
4. according to the method described in claim 1, it is characterized in that, being determined in PCRF according to the local information that user accesses is
After no needs establish the IP-CAN sessions on S9a interfaces with BPCF, whether PCRF will need to establish sentencing for the IP-CAN sessions
Certainly result information is sent to BPCF；BPCF performs according to the court verdict information or does not perform the IP-CAN session establishments
Operation.
5. according to the method described in claim 1, it is characterized in that, the BPCF is established S9a be subject to the PCRF initiations connects
The triggering of gateway control session operation on mouth, initiates the IP-CAN session establishments operation；
The PCRF decides whether to need to establish the IP-CAN meetings on S9a interfaces with BPCF according to the local information that user accesses
Words, and operated according to the IP-CAN session establishments that court verdict determines to receive or refuse the BPCF initiations.
6. according to the method described in claim 1, it is characterized in that, the local information that user accesses is passed through gateway by the PCRF
Control session operation is sent to BPCF, and BPCF decides whether that needs are established S9a with PCRF and connect according to the local information that user accesses
IP-CAN sessions on mouth, BPCF decide whether to establish the IP-CAN sessions according to following condition A to D：
If A, the local information of user access for the local ip address of Home eNodeB or the local ip address of Home eNodeB and
The IP-CAN sessions are not established in port numbers, then BPCF judgements；
If B, the local information of user's access is to include the local ip address and port numbers of UE, BPCF judges not establishing institute
State IP-CAN sessions；
If C, only the local ip address comprising UE does not include port numbers to the local information of user's access, BPCF judges to need
Establish the IP-CAN sessions；
If D, the local information accessed according to the user judges to need to establish the IP-CAN sessions, but PCRF is sent to BPCF
UE signing informations in forbid the UE to be shunted, then BPCF finally judge do not establish the IP-CAN sessions；
In the case where PCRF initiates to establish the triggering of gateway control session operation on S9a interfaces to BPCF, the BPCF is according to described in
The result of judgement performs or does not perform the IP-CAN session establishments operation.
7. a kind of strategy session establishes device, it is characterised in that the device includes：
Judging module, positioned at PCRF or BPCF, the local information for being accessed according to user decide whether to need to establish PCRF with
The IP-CAN sessions on S9a interfaces between BPCF, and according to court verdict instruction IP-CAN session establishments module execution or not
The IP-CAN session establishments operation is performed, or instruction gateway control session initiation module receives or refuse the IP-CAN sessions
Foundation request；Wherein, the local information of user's access includes the local ip address and port numbers of UE, or only includes UE's
Local ip address does not include port numbers, or the local ip address and port numbers of the Home eNodeB accessed comprising user, or only wraps
The local ip address of the Home eNodeB accessed containing user does not include port numbers；
Gateway control session initiation module, positioned at PCRF, the gateway control session for being initiated to BPCF on S9a interfaces establishes behaviour
Make；
IP-CAN session establishment modules, are initiated under BPCF, the triggering for establishing operation in gateway control session to PCRF
IP-CAN session establishments operate.
8. device according to claim 7, it is characterised in that the local information of user's access includes the local IP of UE
Address and port numbers, or only the local ip address comprising UE does not include port numbers, or the Home eNodeB accessed comprising user
Local ip address and port numbers, or the local ip address of the Home eNodeB only accessed comprising user do not include port numbers；It is described
The foundation that judging module performs the judgement is：
If the local information of user's access is the local ip address of Home eNodeB or local ip address and the end of Home eNodeB
Slogan, then judge not establishing the IP-CAN sessions；
If the local information of user's access includes the local ip address and port numbers of UE, judge not establish the IP-CAN
Session；
If only the local ip address comprising UE does not include port numbers to the local information of user's access, judgement needs to establish institute
State IP-CAN sessions；
If the local information accessed according to the user judges to need to establish the IP-CAN sessions, but the signing information of the UE
The UE is forbidden to be shunted, then PCRF finally judges that the IP-CAN sessions need not be established.
9. device according to claim 7, it is characterised in that described in the case where the judging module is located at PCRF
Device further includes：
Court verdict sending module, positioned at PCRF, for initiating the gateway control in the gateway control session initiation module
After session establishment operation, the court verdict of the judging module is sent to BPCF；
The IP-CAN session establishments module performs or does not perform the IP-CAN session establishments behaviour according to the court verdict
Make.
10. device according to claim 7, it is characterised in that described in the case where the judging module is located at PCRF
Device further includes：
IP-CAN conversational response judging modules, positioned at PCRF, for initiating gateway control in the gateway control session initiation module
After session establishment operation processed, and IP-CAN session establishments module initiation IP-CAN session establishment operations, sentence according to described in
Certainly the court verdict of module determines to receive or refuse the IP-CAN session establishments operation that the IP-CAN session establishments module is initiated.
11. device according to claim 7, it is characterised in that described in the case where the judging module is located at BPCF
After gateway control session initiation module initiates gateway control session foundation operation, the judging module performs judgement, the IP-
CAN session establishments module determines to perform or do not perform the IP-CAN session establishments according to the court verdict of the judging module
Operation.
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| WO2011082895A1 (en) * | 2010-01-05 | 2011-07-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for gateway session establishment |
| CN102131240A (en) * | 2010-01-15 | 2011-07-20 | 中兴通讯股份有限公司 | Method and system for realizing service quality control |
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| WO2011082895A1 (en) * | 2010-01-05 | 2011-07-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for gateway session establishment |
| CN102131240A (en) * | 2010-01-15 | 2011-07-20 | 中兴通讯股份有限公司 | Method and system for realizing service quality control |
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