CN101267318A - A method for indicating and realizing associated billing of related message - Google Patents

Abstract

The invention discloses a method for realizing associated charging to an indication and the associated messages, comprising the steps of: adding a parameter SCID for identifying the same one service into a REFER message and an operation message caused by the REFER message; when each network apparatus is reporting the charging information, if the SCID parameter information exists, reporting the SCID parameter information as a piece of charging information; a charging centre, according to the SCID parameter, associates the REFER charging information with the charging information of operation indicated by the REFER. The invention also discloses another method for realizing associated charging to an indication and the associated messages, an application server is configured to record the REFER associated information to associate the ICID of a REFER request message with the ICID of the corresponding operation messages. The invention can accomplish the association between the REFER charging information and the charging information of operation indicated by the REFER, thus strengthening the charging ability of operators about complicated services and providing better services for the users.

Description

The implementation method of a kind of indication and associated billing of related message thereof

Technical field

The present invention relates to the communications field, relate in particular to the implementation method of middle REFER (indication) of a kind of next generation network (NGN) and associated billing of related message thereof.

Background technology

Be in the next generation network (NGN) of core with IP Multimedia System (IMS), adopt initial session protocol (SIP) as professional control protocol, every communication service can be cooperated with the application server (AS) by operator's setting in the network by user's intelligent terminal to be finished.

Fig. 1 is that a kind of typical services in the next generation network realizes framework, wherein, application server (AS) (may exist a plurality of, be respectively applied for different business) link to each other with the service-call session control function entity (S-CSCF) of user attaching network by interface, the professional control messages of SIP between user terminal A and the user terminal B (with dashed lines sign) can be flowed through Proxy-Call Session Control Function entity (P-CSCF) in separately the visited network and the service-call session control function entity (S-CSCF) in the home network and application server (according to the kind of customer service, may pass through different application servers), application server can be by the business of various processing to realize enriching to professional control messages.User terminal A and user terminal B utilize the service message exchange and consult the media parameter that both sides supported, between is set up Media Stream and connected (using solid line), and Media Stream is used for transmitting data such as conversation voice packets.

Above-mentioned business realizing framework makes the single network functional entity all can't reflect (comprising P-CSCF, S-CSCF, AS etc.) the complete situation of whole service, therefore, the professional control messages of SIP each network functional entity of process, all need to report charge information (comprising the partial parameters in timestamp, type of message, initiator's sign, recipient's sign and the message) to the charging center of operator, so that the professional complete situation that realizes is grasped in the charging center, thereby can reasonably charge to the user.

Because each network functional entity is to distinguish independently to the charging center reporting information, the charging center need be discerned the charge information of receiving from different network functional entities, will associate with once professional charge information.In the prior art, this related following method realization of adopting:

When P-CSCF receives the new request message of of user, produce a globally unique ICID (IMS charging identifier), and be inserted in user's the request message as a parameter, pass to then this request message each network functional entity of process; These network functional entities all provide this ICID when the charging center reports charge information; The charging center can associate the charge information with identical ICID.In addition, when user terminal sends a request message, then can remove this ICID, ICID not offered the user at P-CSCF.

The problem that above technology exists is: if a complete business relates to a plurality of new request messages, then each new request message has different ICID, association can only be carried out with the charge information of same request in the charging center, be difficult to the charge information of a plurality of requests is carried out association, thereby limited the charging ability of charging center complicated business.

A kind of common business that relates to a plurality of new requests is to adopt the business of REFER message among the NGN.

Defined a kind of particular message: REFER (indication) in Session Initiation Protocol, its effect is as follows: user B sends REFER message to user A, and the major parameter that carries has Refer-To (indication third party user C) and method (indicating a kind of method); User A initiates certain operation requests according to this message to user C and (adopts the method for method parameter indication, invite the other side, MESSAGE-to send information as INVITE-) to the other side, parameters R eferred-By of portability in these operation requests message is used to identify indication side's (being user B) of this operation requests.

REFER message can be used for realizing calling out business such as switching, meeting.

Fig. 2 is a kind of typical call switching business flow process.For simplicity, the network equipments such as Proxy-Call Session Control Function entity, service-call session control function entity have been omitted among this figure.At this flow process section start, user terminal-A (user A) and user terminal-B (user B) are in the communication process, ((application server-B) all participates in this communication process to the application server of user terminal-A, for separately service object provides professional for application server-A) and the application server of user terminal-B; By user terminal-B user terminal-A is changed to then and calls out hold mode (be that service message can intercommunication, but Media Stream temporarily interrupting); User terminal-B sends a transfer-request (step 1～3) (this transfer-request employing REFER message by application server-A to user terminal-A then, the Refer-To parameter is a user C number, the method parameter is INVITE), after user terminal-A represents to accept this request (step 4～6), user terminal-B sends the on-hook request to user terminal-A, disconnects conversation speech channel (step 7～12) between the two; User terminal-A sends to user terminal-C (user C) and invites request (this transfer-request employing INVITE then, wherein carry the Referred-By parameter and be user B number), between user terminal-A and user terminal-C, set up conversation (step 13～21).

A characteristic of call switching business is: operator can remember the cost of the phone call between user A and the user C on the account of user B according to the Referred-By parameter in the INVITE.Concrete application scenarios as: user A dials the after-sale service center of certain manufacturer, after after-sale service center reception personnel goes and finds out what's going on, send REFER message to user A, make a certain technical staff (user C) of user A and this manufacturer set up conversation, with further handling problem, the cost of the phone call between user A and the user C will be born in the after-sale service center, to increase customer satisfaction degree.

As shown in Figure 3 (for simplicity, same user's P-CSCF, S-CSCF and AS are integrated, this does not influence the explanation to this paper), when user B sends REFER request (step F 1), P-CSCF by user B place distributes an ICID (following ICID with ICID-R sign REFER request), inserts in the REFER request message and is transmitted to the follow-up network equipment (step F 2); User A sends REFER to user B and receives response (step F 4～step F 6); When user A sends INVITE request (step F 7) to user C, P-CSCF by user A place distributes another ICID (following with the ICID of ICID-C sign by the operation requests of REFER initiation), inserts in the REFER request message and is transmitted to the follow-up network equipment (step F 8); User C receives operation respective request (step F 9), sends response message to user A (step F 10～F12).For the charging center, it can be received the band ICID-R that each network equipment reports respectively and be with the charge information of ICID-C, but they can't be associated easily.

Summary of the invention

The technical problem to be solved in the present invention just provides the implementation method of a kind of indication and associated billing of related message thereof, solves the REFER related news because of the charge information that the carries different IC ID problem that can't be mutually related.

In order to solve the problems of the technologies described above, the invention provides the implementation method of a kind of indication and associated billing of related message thereof, comprising:

In the operation information of indication REFER message and initiation thereof, increase the parameter service billing sign SCID that is used to identify with once professional;

Each network equipment if the SCID parameter information is arranged, then reports it when reporting charge information as a charge information, the charging center is according to the charge information of the indicated operation of SCID parameter association REFER charge information and REFER.

Further, described SCID is generated by the user terminal that sends the REFER request message, and is inserted in the REFER request message, is transmitted to subsequent network device; Perhaps, Proxy-Call Session Control Function entity P-CSCF or service-call session control function entity S-CSCF or application server AS generation by the user terminal place that sends the REFER request message, be inserted in the REFER request message, be transmitted to subsequent network device;

Further, after the user terminal that receives the REFER request message is received the REFER request that contains the SCID parameter, this SCID is inserted in the operation requests that this user will send, is sent to P-CSCF and subsequent network device.

Further, in the home network that receives REFER requesting users terminal, application server S is set, make the REFER request message that mails to the user arrive application server S earlier, and make user's operation requests message that indication is sent according to REFER arrive application server S earlier;

After this application server S is receiving that the REFER that contains the SCID parameter asks, write down the relevant information of this REFER request, the relevant information of described record comprises the SCID parameter; Simultaneously this REFER request is transmitted to and receives REFER requesting users terminal;

After application server S is receiving the operation information that described reception REFER requesting users terminal sends, retrieve corresponding record, take out the SCID parameter, be inserted in the operation requests message, be transmitted to the follow-up network equipment.

Further, described application server S transmits before the REFER request that contains the SCID parameter, and the SCID parameter deletion with in the REFER request forwards again.

Further, application server S receives in the operation information that described reception REFER requesting users terminal sends and comprises the SCID parameter, whether this application server S checks this SCID parameter according to record correct, if it is incorrect, then according to carrier policy, refuse the operation requests that this user sends, or the SCID that is preserved with application server S replaces the SCID that this user terminal provides.

Further, in the home network that receives REFER requesting users terminal, application server S is set, the REFER related news that make this user terminal are through this application server S, make the REFER request message that mails to the user arrive application server S earlier, and make user's operation requests message that indication is sent according to REFER arrive application server S earlier;

Application server S generates the SCID parameter after receiving the REFER request that does not contain the SCID parameter, write down the relevant information of this REFER request, and the relevant information of described record comprises the SCID parameter; Simultaneously this REFER request is transmitted to and receives REFER requesting users terminal;

After application server S is receiving the operation information that described reception REFER requesting users terminal sends, retrieve corresponding record, take out the SCID parameter, be inserted in the operation requests message, be transmitted to the follow-up network equipment.

Further, application server S is inserted into the SCID parameter in the REFER acceptance response message that user terminal returns, and is transmitted to other network equipment.

In order to solve the problems of the technologies described above, the invention provides the implementation method of a kind of indication and associated billing of related message thereof, comprising:

Step 1, in the home network that receives REFER requesting users terminal, application server S is set, make the REFER request message that mails to the user arrive application server S earlier, and make user's operation requests message that indication is sent according to REFER arrive application server S earlier;

Step 2, application server S analyzes the REFER request of mailing to user terminal, record REFER relevant information, this information comprises user ID and IP Multimedia System charging identifier ICID at least, simultaneously this REFER request is transmitted to user terminal;

Step 3, after application server S is receiving the operation requests message that user terminal sends, if retrieve corresponding record, then in the charge information that reports to the charging center, comprise the user and send out the ICID in the request message and the ICID of the REFER message in the corresponding record;

After step 4, charging center were received the charge information that application server S reports, according to two ICID parameters, the charge information with identical ICID that each network equipment is reported associated.

Further, described REFER relevant information also comprises Refer-To, method parameter, the timestamp information in the REFER message; Application server S records this locality with this information.

It is related that the present invention can realize that the charge information of the operation that REFER charge information and REFER is indicated carries out, thereby strengthen the charging ability of operator to complicated business, provides professional for the user better.The charging center can be checked the REFER charge information of association earlier, in case billing error occurs before according to the operation charge information user being chargeed.If contain in the REFER charge information special charging policy information (as, this user is unwilling to pay operation associated expense), then can not charge to this user in the charging center.In addition, if user A is under the situation of the REFER request of not receiving user B, its Referred-By parameter of sending out request is changed to user B number, the swindle of chargeing is implemented in attempt, the operation charge information of receiving owing to the charging center lacks the REFER charge information that is associated so, thereby can find this fraud.

Description of drawings

Fig. 1 is that a kind of typical services in the next generation network realizes Organization Chart;

Fig. 2 is a kind of typical call switching business flow chart;

Fig. 3 is the schematic diagram that REFER message and relevant operation information thereof carry ICID;

Fig. 4 is the first embodiment of the present invention;

Fig. 5 is the second embodiment of the present invention;

Fig. 6 is the third embodiment of the present invention.

Embodiment

The present invention is described in detail below in conjunction with drawings and the specific embodiments.

Embodiment one

As shown in Figure 4, a kind of simple execution mode is:

Increase an optional parameters SCID (service billing sign) in the operation information (comprising INVITE, MESSAGE etc.) of REFER message and initiation thereof, this parameter is used for sign with once professional.For with a kind of business (as calling out switching), each SCID that carries out when professional is different.

Step G1 when user terminal (being called for short the user) B transmission REFER request, generates the SCID parameter, is inserted in the REFER request message, is transmitted to P-CSCF-B/S-CSCF-B/AS-B;

Step G2, the P-CSCF at user B place distributes an ICID (following ICID with ICID-R sign REFER request), inserts in the REFER request message, simultaneously, carry the SCID parameter in this REFER request message, be transmitted to follow-up network equipment P-CSCF-A/S-CSCF-A/AS-A;

Perhaps, in step G1, user B does not generate the SCID parameter, but when the P-CSCF at user B place or S-CSCF or certain AS receive the REFER request that user B sends, generates the SCID parameter, is inserted in the REFER request message, is transmitted to the next network equipment;

Step G4～G6, user A sends REFER by relevant P-CSCF/S-CSCF/AS to user B and receives response;

Step G7～G8, user A are inserted in the operation requests of sending to user A after receiving the REFER request that contains the SCID parameter, are sent to P-CSCF and other follow-up network equipment;

Step G9, user C receive operation respective request (can not be with the SCID parameter in this request);

Step G10～G12 sends response message to user A.

Each network equipment if the SCID parameter information is arranged, then reports it when reporting charge information as a charge information, the charging center can be according to the charge information of the indicated operation of SCID parameter association REFER charge information and REFER.

In the above-described embodiment, the SCID parameter is used for the charging center and distinguishes different business, therefore need keep certain uniqueness within the specific limits, to avoid the not situation of the professional identical SCID of use of homogeneous.SCID keeps the method for uniqueness not in content of the present invention, can keep the method for uniqueness with reference to ICID in the prior art.

Embodiment two

The hidden danger of embodiment one is: for operator, the employed terminal of user may not followed agreement, does not fill in correct SCID in operation requests message, is fly-by-night therefore.For guaranteeing the credibility of SCID, on the basis of above-mentioned execution mode, a kind of improved execution mode as shown in Figure 5:

Operator is provided with one and is used to detect the REFER related news and (comprises the REFER request that the user receives in user A home network, and the various operation requests message sent of user) application server (in actual applications, this server can be independent server, also can be combined into a server with certain AS-A, in this example, be that the application server with above-mentioned functions is an example) with AS-A;

Operator by certain configuration (as, service-call session control function entity at the user attaching network is provided with certain message screening criterion), the REFER related news of guaranteeing the user can pass through AS-A, that is: the REFER request message that mails to the user is understood arrival AS-A earlier, is transmitted to the user by AS-A again; The various operation requests message that the user sends can arrive AS-A earlier, are transmitted to the purpose side of message again by AS-A.

Step H1～H2, the same with step G1～G2 among the embodiment one, when user B sends the REFER request, generate the SCID parameter, be inserted in the REFER request message, be transmitted to P-CSCF-B/S-CSCF-B/AS-B; Perhaps, user B does not generate the SCID parameter, when the P-CSCF at user B place or S-CSCF or certain AS receive the REFER request that user B sends, generates the SCID parameter, is inserted in the REFER request message, is transmitted to the next network equipment;

Step H3, AS-A is after receiving the REFER request that contains the SCID parameter, create a record in this locality, write down the relevant information (as information such as Refer-To, method in REFER initiator sign, the REFER message, parameters such as ICID, SCID, timestamps) of this REFER request, simultaneously this REFER request is transmitted to user A; According to carrier policy, AS-A can not offer user A with the SCID parameter deletion in the REFER request; (among the figure among the step H3 be example not contain the SCID parameter);

Step H4～H6, G4～G6 is the same with step, and user A sends REFER by relevant P-CSCF/S-CSCF/AS to user B and receives response;

Step H7, user A sends operation information to AS-A;

Step H8, AS-A retrieve corresponding local record after receiving the various operation informations that user A sends, take out the SCID parameter, are inserted in the operation requests message, are transmitted to the follow-up network equipment; If comprise the SCID parameter in the operation information that user A sends, whether AS-A can check this SCID parameter according to local record correct, if incorrect, then according to carrier policy, but the operation requests that refusing user's A sends, or replace the SCID that user A provides with SCID that AS-A preserved;

Step H9～H12 is identical with embodiment one corresponding steps, repeats no more herein.

Because application server is provided by operator, is trusty.Therefore, realize corresponding related with ICID-R and ICID-C having very high credibility by application server.

Embodiment three

Among embodiment one and the embodiment two, need the P-CSCF at user B or user B place or S-CSCF or certain AS when receiving the REFER request that user B sends, to generate the SCID parameter, be inserted in the REFER request message.If this condition can not satisfy, improve one's methods (as shown in Figure 6) below can adopting:

Step J1～J3, user B send the REFER request, and to user A, wherein the REFER request does not all contain the SCID parameter through a plurality of network equipments;

Step J2 wherein, AS-A is after receiving the REFER request that does not contain the SCID parameter, generate the SCID parameter, create a record in this locality, write down the relevant information (as information such as parameter, timestamp, SCID parameter such as Refer-To, method in REFER initiator sign, the REFER message, ICID) of this REFER request;

Other step, similar with embodiment two, only in step J5, according to carrier policy, AS-A can be inserted into the SCID parameter in the REFER acceptance response message that the user returns, and is transmitted to other network equipment.

More than three embodiment have an identical precondition, promptly need in the operation information of REFER message and initiation thereof, increase an optional parameters SCID, if this condition can not satisfy, improve one's methods below then can adopting (as Fig. 3):

Similar embodiment two,

Operator is provided with an application server AS-A who is used to detect REFER related news (comprise the REFER request that the user receives, and the various operation requests message sent of user) in user A home network;

Operator by certain configuration (as, service-call session control function entity at the user attaching network is provided with certain message screening criterion), the REFER related news of guaranteeing the user can pass through AS-A, that is: the REFER request message that mails to the user is understood arrival AS-A earlier, is transmitted to the user by AS-A again; The various operation requests message that the user sends can arrive AS-A earlier, are transmitted to the purpose side of message again by AS-A.

AS-A analyzes the REFER request (step F 2) of mailing to user A, information such as parameter, timestamp such as Refer-To, the method in record REFER initiator sign, the REFER message, ICID-R are transmitted to this REFER request user's (step F 3) simultaneously;

AS-A is after receiving the various operation requests message (step F 7) that user A sends, retrieve corresponding local record, in the charge information that reports to the charging center, not only comprise the user and send out ICID-C in the request, also comprise simultaneously the ICID-R of the REFER message in the corresponding local record;

After the charge information that AS-A reports is received in the charging center, extract related ICID-R and ICID-C, the charge information with identical ICID that each network equipment can be reported associates.

In sum, demand according to operator adopts one of above-mentioned implementation method, can realize that the charge information of the operation that REFER charge information and REFER is indicated carries out related, thereby strengthen the charging ability of operator, provide professional for the user better complicated business.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation, and protection scope of the present invention is as the criterion with claim.

Claims (11)

1. the indication and the implementation method of associated billing of related message thereof comprise:

In the operation information of indication REFER message and initiation thereof, increase the parameter service billing sign SCID that is used to identify with once professional;

Each network equipment if the SCID parameter information is arranged, then reports it when reporting charge information as a charge information, the charging center is according to the charge information of the indicated operation of SCID parameter association REFER charge information and REFER.

2. implementation method according to claim 1 is characterized in that, described SCID is generated by the user terminal that sends the REFER request message, and is inserted in the REFER request message, is transmitted to subsequent network device; Perhaps, Proxy-Call Session Control Function entity P-CSCF or service-call session control function entity S-CSCF or application server AS generation by the user terminal place that sends the REFER request message, be inserted in the REFER request message, be transmitted to subsequent network device;

3. implementation method according to claim 1, it is characterized in that, after the user terminal that receives the REFER request message is received the REFER request that contains the SCID parameter, this SCID is inserted in the operation requests that this user will send, is sent to P-CSCF and subsequent network device.

4. according to any described implementation method in the claim 1～3, it is characterized in that, in the home network that receives REFER requesting users terminal, application server S is set, make the REFER request message that mails to the user arrive application server S earlier, and make user's operation requests message that indication is sent according to REFER arrive application server S earlier;

After this application server S is receiving that the REFER that contains the SCID parameter asks, write down the relevant information of this REFER request, the relevant information of described record comprises the SCID parameter; Simultaneously this REFER request is transmitted to and receives REFER requesting users terminal;

After application server S is receiving the operation information that described reception REFER requesting users terminal sends, retrieve corresponding record, take out the SCID parameter, be inserted in the operation requests message, be transmitted to the follow-up network equipment.

5. implementation method according to claim 4 is characterized in that, described application server S transmits before the REFER request that contains the SCID parameter, and the SCID parameter deletion with in the REFER request forwards again.

6. implementation method according to claim 4, it is characterized in that, application server S receives in the operation information that described reception REFER requesting users terminal sends and comprises the SCID parameter, whether this application server S checks this SCID parameter according to record correct, if it is incorrect, then, refuse the operation requests that this user sends, or the SCID that is preserved with application server S replaces the SCID that this user terminal provides according to carrier policy.

7. according to claim 1 or 3 described implementation methods, it is characterized in that, in the home network that receives REFER requesting users terminal, application server S is set, the REFER related news that make this user terminal are through this application server S, make the REFER request message that mails to the user arrive application server S earlier, and make user's operation requests message that indication is sent according to REFER arrive application server S earlier;

Application server S generates the SCID parameter after receiving the REFER request that does not contain the SCID parameter, write down the relevant information of this REFER request, and the relevant information of described record comprises the SCID parameter; Simultaneously this REFER request is transmitted to and receives REFER requesting users terminal;

After application server S is receiving the operation information that described reception REFER requesting users terminal sends, retrieve corresponding record, take out the SCID parameter, be inserted in the operation requests message, be transmitted to the follow-up network equipment.

8. implementation method according to claim 7 is characterized in that, application server S is inserted into the SCID parameter in the REFER acceptance response message that user terminal returns, and is transmitted to other network equipment.

9. implementation method according to claim 7, it is characterized in that, application server S receives in the operation information that described reception REFER requesting users terminal sends and comprises the SCID parameter, whether this application server S checks this SCID parameter according to record correct, if it is incorrect, then, refuse the operation requests that this user sends, or the SCID that is preserved with application server S replaces the SCID that this user terminal provides according to carrier policy.

10. the indication and the implementation method of associated billing of related message thereof comprise:

Step 1, in the home network that receives REFER requesting users terminal, application server S is set, make the REFER request message that mails to the user arrive application server S earlier, and make user's operation requests message that indication is sent according to REFER arrive application server S earlier;

Step 2, application server S analyzes the REFER request of mailing to user terminal, record REFER relevant information, this information comprises user ID and IP Multimedia System charging identifier ICID at least, simultaneously this REFER request is transmitted to user terminal;

Step 3, after application server S is receiving the operation requests message that user terminal sends, if retrieve corresponding record, then in the charge information that reports to the charging center, comprise the user and send out the ICID in the request message and the ICID of the REFER message in the corresponding record;

After step 4, charging center were received the charge information that application server S reports, according to two ICID parameters, the charge information with identical ICID that each network equipment is reported associated.

11. implementation method according to claim 10 is characterized in that, described REFER relevant information also comprises Refer-To, method parameter, the timestamp information in the REFER message; Application server S records this locality with this information.

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