CN103490910A

CN103490910A - Method for charging session contents

Info

Publication number: CN103490910A
Application number: CN201310488818.8A
Authority: CN
Inventors: 潘永东; 张燕; 于继明
Original assignee: Jinling Institute of Technology
Current assignee: Jinling Institute of Technology
Priority date: 2013-10-17
Filing date: 2013-10-17
Publication date: 2014-01-01
Anticipated expiration: 2033-10-17
Also published as: CN103490910B

Abstract

The invention relates to a method for charging IMS (Internet protocol multimedia subsystem) peer-to-peer session contents. The method comprises the following steps of expanding an AVP (accounting value pair) structure for expressing IMS peer-to-peer session service charging information in a Diameter protocol charging message structure, wherein the AVP structure comprises a signaling type identification field, a virtual signaling packet identification filed, a charging stage identification field and a media traffic table identification field; in a session process, recording the charging information of a user through the AVP structure and transmitting the charging information of the user to a charging function entity network element by using a charging information acquisition network element; performing charging data recording, association and sorting according to the AVP structure by using the charging function entity network element, thereby realizing charging. According to the method, not only is the problem of incapability of distinguishing signaling types and virtual logic network elements during the session charging of an IMS peer-to-peer session service solved, but also the problem of incapability of charging session media traffic and media quality in case of media type transcoding and media switching services in the session process is solved.

Description

A kind of method that realizes the session content charging

Technical field

The present invention relates to IP Multimedia System in the communications field (IMS, IP Multimedia subsystem) business charging method, relate in particular to the method that the point-to-point session content of IMS multimedia is carried out to charging that realizes.

Background technology

At present, existing IMS business charging method can based on Rf interface or Ro interface to the IMS multimedia point-to-point session carry out off-line or online charging.Third generation partnership project (3GPP, Third Generation Partnership Projects) consensus standard is for charging bill (CDR, Charging Data Record) and Diameter offline charging ACR(Accounting Request) message, online charging CCR(Credit Control Request) message, also stipulated that some meet the field of charging demand, such as session identification Session-ID, calling party address Calling-Party-Address, service request time Service-Request-Time-Stamp, service response time Service-Delivery-Start-Time-Stamp, service concluding time Service-Delivery-End-Time-Stamp etc.But, be different from traditional, be tending towards ripe Circuit Switching Network's Freight Basis, the relevant consensus standard of charging of the IMS multimedia peer to peer session business of IP network carrying also exists many perfect not places, concrete manifestation is as follows:

1) an IMS multimedia peer to peer session, the Calling Side that may have a network element and callee side are used the scene of different signaling surface protocol types, but current consensus standard there is no the difference of method according to the signaling surface protocol type, perhaps, according to the difference of conversation initial request call direction, charging bill is identified and sorted.

2) in the IMS network, may exist a physical NE entity to be virtualized as a plurality of logical ne entities, and these a plurality of logical ne entities share the scene of 1 Rf billing interface, but current consensus standard there is no the difference of method according to the logical ne entity, and charging bill is identified and sorts.

3) an IMS multimedia peer to peer session may exist Calling Side and callee side medium type to change the scene of (trandcoding) business, operator needs in charging bill to provide respectively the Calling Side of IMS multimedia peer to peer session medium surface and media flow, the media quality continuous data of callee side, so that it can work out charging policy more flexibly, but current consensus standard there is no method in charging bill, distinguish media flow, media quality continuous data that Calling Side and callee side provide IMS multimedia peer to peer session.

4) after an IMS multimedia peer to peer session enters speech phase, may there is the scene of media switching, but current consensus standard there is no method in charging bill, media flow, the media quality continuous data of media switching front and back medium surface are provided, and then have caused operator to formulate charging policy more flexibly according to different media flow, media quality before and after the media switching.

For some above specific charging demands, a kind of charging method that can adapt to and serve such IMS multimedia peer to peer session scene is urgently proposed, and the corresponding charging property to IMS multimedia peer to peer session business is to (AVP, Accounting Value Pair) structure is carried out expanded definition, makes some information wherein can separately or combine the keyword as the sorting of IMS multimedia peer to peer session charging bill and metering.

Summary of the invention

Technical problem to be solved by this invention is to provide the method for a kind of IMS of realization multimedia peer to peer session content charging, the new feature that can either adapt to IMS multimedia peer to peer session business reasonably carries out charging, carries out easily expansion of content after can taking into account again the development of technology in the future.

In order to solve the problems of the technologies described above, the invention provides the method for a kind of IMS of realization multimedia peer to peer session content charging, relate to the charge information acquisition network element and (comprise interconnected boundary point control function IBCF, perhaps Proxy-Call Session Control Function P-CSCF, perhaps access switching control function ATCF) and billing function entity CDF network element, the method comprises:

(1) the combined charging property that expansion is used for explaining described IMS multimedia peer to peer session service charging information in Diameter charging message structure, to the AVP structure, comprising: signaling type identification field, virtual signaling group character field, charging phase identification field and Media Stream scale identification field;

(2) in described IMS multimedia peer to peer session business procedure, described charge information acquisition network element is by the charge information of described AVP structure recording user, and described AVP structure is sent to described billing function entity network element; Described billing function entity network element is carried out charging bill record, associated and sorting according to described AVP structure, thereby realizes charging.

Further,

(2a) described Diameter charging message refers to and comprises and offline charging message and the online charging message of described IMS multimedia peer to peer session correlation circumstance, and correspondingly described billing function entity comprises offline charging data function entity and online charging data function entity.

Described signaling type identification field, for distinguishing the signaling surface protocol type of an IMS multimedia peer to peer session, described signaling surface protocol type comprises: Session Initiation Protocol type, protocol type H.323;

Described virtual signaling group character field, for being virtualized as a plurality of logical ne entities at a physical NE entity, and, when these a plurality of logical ne entities share 1 Rf or Ro billing interface scene, distinguish the virtualizes logical network element entity of described IMS multimedia peer to peer session ownership;

Described charging phase identification field, for distinguishing the charging session information of the conversation initial request message of an IMS multimedia peer to peer session with respect to the charge information acquisition network element, the described charging stage comprises: enter to type of call (to the session charging of incoming call charge information acquisition network element direction), go out to type of call (to the session charging of exhalation charge information acquisition network element direction);

Described Media Stream scale is a combined identification field, for recording the quantitative charge information of the various medium types of IMS multimedia peer to peer session medium surface, the quantitative charge information of described medium type comprises: the Media Stream scale reports cause value field, Media Stream scale to report field, Calling Side media quality information field, callee side media quality information field constantly;

Further,

(2b) described Media Stream scale reports the cause value field, trigger for recording the cause value that corresponding Media Stream scale reports, comprising: media switching, network element configuration change, session termination, time threshold values cross the border, the flow threshold values crosses the border, conversation aging, disaster tolerance switch;

Described Media Stream scale reports constantly, the time-parameters reported for recording corresponding Media Stream scale;

Described Calling Side media quality information, for recording the Calling Side media quality parameter information that corresponding Media Stream scale reports, comprising: Calling Side enters to Media Stream byte number, Calling Side to go out to Media Stream byte number, Calling Side medium type, Calling Side media bandwidth, Calling Side media average delay, Calling Side media maximum delay, Calling Side media average jitter, the maximum jitter of Calling Side media, Calling Side media average packet loss ratio, the maximum packet loss of Calling Side media, Calling Side media quality R index;

Described callee side media quality information, for recording the callee side media quality parameter information that corresponding Media Stream scale reports, comprising: callee side enters to Media Stream byte number, callee side to go out to Media Stream byte number, callee side medium type, callee side media bandwidth, callee side media average delay, callee side media maximum delay, callee side media average jitter, the maximum jitter of callee side media, callee side media average packet loss ratio, the maximum packet loss of callee side media, callee side media quality R index;

Further,

(2c) described Calling Side enters to the Media Stream byte number, for recording the media flow of IMS multimedia peer to peer session request initiating terminal one side inflow charge information acquisition network element;

Described Calling Side goes out to the Media Stream byte number, goes out the media flow of charge information acquisition network element for recording IMS multimedia peer to peer session request initiating terminal one effluent;

Described Calling Side medium type, for recording the medium type between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

Described Calling Side media bandwidth, for recording the media bandwidth between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

Described Calling Side media average delay, for recording the media average delay between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

Described Calling Side media maximum delay, for recording the media maximum delay between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

Described Calling Side media average jitter, for recording the media average jitter between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

The maximum jitter of described Calling Side media, for recording the media maximum jitter between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

Described Calling Side media average packet loss ratio, for recording the media average packet loss ratio between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

The maximum packet loss of described Calling Side media, for recording the maximum packet loss of media between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element;

Described Calling Side media quality R index, for recording media quality R index between IMS multimedia peer to peer session request initiating terminal and charge information acquisition network element (media quality R index definition see ITU-T G.107 standard is described);

Described callee side enters to the Media Stream byte number, for recording the media flow of IMS multimedia peer to peer session terminal called one side inflow charge information acquisition network element;

Described callee side goes out to the Media Stream byte number, goes out the media flow of charge information acquisition network element for recording IMS multimedia peer to peer session terminal called one effluent;

Described callee side medium type, for recording the medium type between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

Described callee side media bandwidth, for recording the media bandwidth between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

Described callee side media average delay, for recording the media average delay between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

Described callee side media maximum delay, for recording the media maximum delay between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

Described callee side media average jitter, for recording the media average jitter between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

The maximum jitter of described callee side media, for recording the media maximum jitter between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

Described callee side media average packet loss ratio, for recording the media average packet loss ratio between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

The maximum packet loss of described callee side media, for recording the maximum packet loss of media between IMS multimedia peer to peer session terminal called and charge information acquisition network element;

Described callee side media quality R index, for recording media quality R index between IMS multimedia peer to peer session terminal called and charge information acquisition network element (media quality R index definition see ITU-T G.107 standard is described);

Further,

Described IMS multimedia peer to peer session business procedure comprises the following steps;

(2-1) described charge information acquisition network element is received Calling Side terminal session initial request message, and after receiving afterwards callee side terminal responds message, the charge information acquisition network element triggers initial ticketing, record the current time stamp, the charge information of Jiang Gai road session simultaneously is filled up in described AVP structure, and together with described timestamp, is carried in the charging request message that is sent to described billing function entity; Filling in of described charge information comprises:

The local charging stage configuration of preserving of described charge information acquisition network element is inserted to described charging phase identification field; The protocol type of described charging phase identification Related fields one side signaling plane is inserted to the signaling type identification field; The virtual signaling packet number belonged to of described charging phase identification Related fields one side signaling plane is inserted to virtual signaling group character field;

(2-2), after described billing function entity is received described charging request message, for described IMS multimedia peer to peer session is opened 1 charging bill CDR, and return to accounting answer;

(2-3) described charge information acquisition network element detects in described IMS multimedia peer to peer session communication process, when variation has occurred in the conversation medium surface, the charge information acquisition network element triggers the interim UDR charging, record the current time stamp, the charge information of Jiang Gai road session simultaneously is filled up in described AVP structure, and together with described timestamp, is carried in the charging request message that is sent to described billing function entity; Filling in of described charge information comprises:

The local charging stage configuration of preserving of described charge information acquisition network element is inserted to described charging phase identification field; The protocol type of described charging phase identification Related fields one side signaling plane is inserted to the signaling type identification field; The virtual signaling packet number belonged to of described charging phase identification Related fields one side signaling plane is inserted to virtual signaling group character field; The medium type changed has occurred in corresponding medium surface, creates some Media Stream scale member items; The described Media Stream scale of the cause value of described triggering interim UDR charging being inserted to corresponding member's item reports the cause value field; The described Media Stream scale of described timestamp being inserted to corresponding member's item reports field constantly; Described Calling Side media quality information is inserted to the described Calling Side media quality information field of corresponding member's item; Described callee side media quality information is inserted to the described callee side media quality information field of corresponding member's item;

(2-4), after described billing function entity is received described charging request message, for described IMS multimedia peer to peer session upgrades its CDR, and return to accounting answer;

(2-5) when described charge information acquisition network element is received the conversation end request, the charge information acquisition network element triggers and finishes ticketing, record the current time stamp, the charge information of Jiang Gai road session simultaneously is filled up in described AVP structure, and together with described timestamp, is carried in the charging request message that is sent to described billing function entity; Filling in of described charge information comprises:

The local charging stage configuration of preserving of described charge information acquisition network element is inserted to described charging phase identification field; The protocol type of described charging phase identification Related fields one side signaling plane is inserted to the signaling type identification field; The virtual signaling packet number belonged to of described charging phase identification Related fields one side signaling plane is inserted to virtual signaling group character field; The medium type changed has occurred in corresponding medium surface, creates some Media Stream scale member items; The described Media Stream scale of the cause value of described triggering end ticketing being inserted to corresponding member's item reports the cause value field; The described Media Stream scale of described timestamp being inserted to corresponding member's item reports field constantly; Described Calling Side media quality information is inserted to the described Calling Side media quality information field of corresponding member's item; Described callee side media quality information is inserted to the described callee side media quality information field of corresponding member's item;

(2-6) after described billing function entity is received described charging request message, upgrade and close described CDR, and returning to accounting answer; Take each member's field of described signaling type identification field, virtual signaling group character field, charging phase identification field, Media Stream scale as keyword carries out association, can be the user and sort out its relevant CDR.

In order to solve the problems of the technologies described above, the invention provides a kind of combined charging property of the IMS of description multimedia peer to peer session service charging information to the AVP structure, expansion is in Diameter charging message structure, this AVP structure comprises: signaling type identification field, virtual signaling group character field, charging phase identification field and the combined AVP of Media Stream scale, wherein:

Described signaling type identification field, virtual signaling group character field, charging phase identification field, the combined identification field of Media Stream scale are described content with (2a), (2b), (2c);

In order to solve the problems of the technologies described above, the invention provides a kind of telephone bill association and method for sorting for IMS multimedia peer to peer session service billing, comprising:

A, according to the demand of all kinds of charging bill CDR, and according to expansion charge information field and the value thereof of the combined charging property in Diameter charging message structure to the AVP structure, be set to keyword; Wherein, described charge information field comprises: signaling type identification field, virtual signaling group character field, charging phase identification field and the combined AVP of Media Stream scale;

B, according to the associating key word of keyword or combination, sort out required CDR.

Further,

Further, when all CDR of the same signaling surface protocol type of needs, the value of signaling type identification field is set to keyword, and sorts described CDR according to described keyword;

Further, when all CDR of the same virtualizes logical network element of needs entity, the value of virtual signaling group character field is set to keyword, and sorts described CDR according to described keyword;

Further, when all CDR of the same charging of needs stage, the value of charging phase identification field is set to keyword, and sorts described CDR according to described keyword;

Further, when the CDR of the same virtualizes logical network element of needs entity, different Calling Side and callee side media quality, the value of virtual signaling group character field, Calling Side media quality R refer to that target value and callee side media quality R refer to that it is associating key word that target value is set to key combination, and sort described CDR according to described associating key word;

Further, when the same virtualizes logical network element of needs entity, Calling Side and callee side medium type are changed the CDR of (trandcoding) business, it is associating key word that the value of the value of the value of virtual signaling group character field, Calling Side medium type field and callee side medium type field is set to key combination, and sorts described CDR according to described associating key word;

Further, while having the CDR of media switching in the same virtualizes logical network element of needs entity, communication process, it is associating key word that the value of virtual signaling group character field, Media Stream scale report the value of cause value field to be set to key combination, and sorts described CDR according to described associating key word;

Adopt method provided by the invention, IMS multimedia peer to peer session business characteristic be can adapt to and CDR sorting and charging carried out, the present invention simultaneously needs the expanded definition of the information content of filling to Diameter charging request message (ACR/CCR), both solve the existing problem of current IMS multimedia peer to peer session service billing, carried out expansion of content than being easier to according to later technical development again.

The accompanying drawing explanation

Fig. 1, Fig. 2 and Fig. 3 are embodiment of the inventive method, and the P-CSCF network element carries out the message flow chart signal of charging to IMS multimedia peer to peer session in the offline charging mode, wherein:

Fig. 1 is the message flow chart signal of call establishment stage;

Fig. 2 is the message flow chart signal of media switch step;

Fig. 3 is the message flow chart signal in end of calling stage;

Embodiment

The method that realizes IMS multimedia peer to peer session service billing provided by the invention, at first a combined AVP structure that can cover IMS multimedia peer to peer session service billing demand of expansion in Diameter charging message structure, wherein comprise: signaling type identification field, virtual signaling group character field, charging phase identification field and the combined AVP of Media Stream scale; In IMS multimedia peer to peer session business procedure, the charge information acquisition network element is passed through the charge information of this AVP structure recording user, and this AVP structure is sent to the billing function entity; The billing function entity is carried out charging bill record, associated and sorting according to this AVP structure, thereby realizes reasonable charging.

Below in conjunction with specific embodiments and the drawings, technique scheme of the present invention is explained in more detail.

The Diameter charging request message (ACR/CCR) hereinafter occurred has comprised offline charging request message and online charging credit line control request message.

In the charging request message (ACR/CCR) of Diameter, expansion AVP definition in existing combined IMS Information, its structure is as shown in table 1.Wherein:

Table 1 is subordinate to the expansion AVP definition of IMS Information

Signal-Group AVP means virtual group number, is defined as follows:

Signal-Group::=<AVP?Header:26401>

Signal-Type AVP means signaling type, is defined as follows:

Signal-Type::=<AVP?Header:26402>

Value is: SIP – 0, – 1 H.323

Billing-Leg AVP means charge type, is defined as follows:

Billing-Leg::=<AVP?Header:26403>

Value is: Srcleg-0(enters to charging), Destleg-1(goes out to charging)

List-Of-Media-Traffic-Data-Volumes AVP presentation medium flow list item is defined as follows:

List-Of-Media-Traffic-Data-Volumes::=<AVP?Header:26404>

Continue expansion AVP definition in above-mentioned combined List-Of-Media-Traffic-Data-Volumes, its structure is as shown in table 2.Wherein:

Table 2 is subordinate to the expansion AVP definition of List-Of-Media-Traffic-Data-Volumes

Media-Traffic-Change-Condition AVP presentation medium flowmeter reports cause value, is defined as follows:

Media-Traffic-Change-Condition::=<AVP?Header:26405>

Value is: MediaChange-0, ConfigurationChange-1, ServiceStop-2, TimeThresholdReached-3, TimeExhausted-4, DataThresholdReached-5, Failover-6

Media-Traffic-Change-Time AVP presentation medium flowmeter reports constantly, is defined as follows:

Media-Traffic-Change-Time::=<AVP?Header:26406>

Source-Media-Qos-Information AVP means Calling Side media Qos information, is defined as follows:

Source-Media-Qos-Information::=<AVP?Header:26407>

Dest-Media-Qos-Information AVP means callee side media Qos information, is defined as follows:

Dest-Media-Qos-Information::=<AVP?Header:26419>

Continue expansion AVP definition in above-mentioned combined Source-Media-Qos-Information, its structure is as shown in table 3.Wherein:

Table 3 is subordinate to the expansion AVP definition of Source-Media-Qos-Information

Source-Data-Volume-Rtp-Ingress AVP means that Calling Side enters to rtp stream byte number, is defined as follows:

Source-Data-Volume-Rtp-Ingress::=<AVP?Header:26408>

Source-Data-Volume-Rtp-Egress AVP means that Calling Side goes out to rtp stream byte number, is defined as follows:

Source-Data-Volume-Rtp-Egress::=<AVP?Header:26409>

Source-Codec-Type AVP means Calling Side medium type or payload value, is defined as follows:

Source-Codec-Type::=<AVP?Header:26410>

Source-Bandwidth AVP means Calling Side media bandwidth, and the kbps of unit is defined as follows:

Source-Bandwidth::=<AVP?Header:26411>

Source-Aver-Delay AVP means Calling Side media average delay, and the ms of unit is defined as follows:

Source-Aver-Delay::=<AVP?Header:26412>

Source-Max-Delay AVP means Calling Side media maximum delay, and the ms of unit is defined as follows:

Source-Max-Delay::=<AVP?Header:26413>

Source-Max-Jitter AVP means the maximum jitter of Calling Side media, and the ms of unit is defined as follows:

Source-Max-Jitter::=<AVP?Header:26414>

Source-Aver-Jitter AVP means Calling Side media average jitter, and the ms of unit is defined as follows:

Source-Aver-Jitter::=<AVP?Header:26415>

Source-Max-Loss AVP means the maximum packet loss of Calling Side media, and the % of unit is defined as follows:

Source-Max-Loss::=<AVP?Header:26416>

Source-Aver-Loss AVP means Calling Side media average packet loss ratio, and the % of unit is defined as follows:

Source-Aver-Loss::=<AVP?Header:26417>

Source-R-Factor AVP means Calling Side media quality R index, is defined as follows:

Source-R-Factor::=<AVP?Header:26418>

Continue expansion AVP definition in above-mentioned combined Dest-Media-Qos-Information, its structure is as shown in table 4.Wherein:

Table 4 is subordinate to the expansion AVP definition of Dest-Media-Qos-Information

Dest-Data-Volume-Rtp-Ingress AVP means that callee side enters to rtp stream byte number, is defined as follows:

Dest-Data-Volume-Rtp-Ingress::=<AVP?Header:26420>

Dest-Data-Volume-Rtp-Egress AVP means that callee side goes out to rtp stream byte number, is defined as follows:

Dest-Data-Volume-Rtp-Egress::=<AVP?Header:26421>

Dest-Codec-Type AVP means callee side medium type or payload value, is defined as follows:

Dest-Codec-Type::=<AVP?Header:26422>

Dest-Bandwidth AVP means callee side media bandwidth, and the kbps of unit is defined as follows:

Dest-Bandwidth::=<AVP?Header:26423>

Dest-Aver-Delay AVP means callee side media average delay, and the ms of unit is defined as follows:

Dest-Aver-Delay::=<AVP?Header:26424>

Dest-Max-Delay AVP means callee side media maximum delay, and the ms of unit is defined as follows:

Dest-Max-Delay::=<AVP?Header:26425>

Dest-Max-Jitter AVP means the maximum jitter of callee side media, and the ms of unit is defined as follows:

Dest-Max-Jitter::=<AVP?Header:26426>

Dest-Aver-Jitter AVP means callee side media average jitter, and the ms of unit is defined as follows:

Dest-Aver-Jitter::=<AVP?Header:26427>

Dest-Max-Loss AVP means the maximum packet loss of callee side media, and the % of unit is defined as follows:

Dest-Max-Loss::=<AVP?Header:26428>

Dest-Aver-Loss AVP means callee side media average packet loss ratio, and the % of unit is defined as follows:

Dest-Aver-Loss::=<AVP?Header:26429>

Dest-R-Factor AVP means callee side media quality R index, is defined as follows:

Dest-R-Factor::=<AVP?Header:26430>

Below by a concrete application example as shown in Figure 1, Figure 2 and Figure 3, further illustrate and how use the above-mentioned AVP structural information of expanding in Diameter charging message structure, carry out the CDR sorting association, thereby realize IMS multimedia peer to peer session service billing.

At first, this concrete multimedia peer to peer session application scenarios is that P-CSCF is configured to into to charging, the terminal UE of Calling Side SIP signaling type, and it belongs on P-CSCF the virtual signaling grouping that is numbered 1000, below concrete charging flow is described step by step:

As shown in Figure 1:

Step S1:P-CSCF network element is received the conversation initial request message that the Calling Side terminal UE is sent;

Step S2:P-CSCF network element forwards the session initial request message to callee side;

Step S3:P-CSCF network element is received the response message that callee side is sent;

Step S4:P-CSCF network element is transmitted to the Calling Side terminal UE by response message;

Step S5:P-CSCF network element sends initial charging request message ACR[Start to off-line data function CDF entity], this charging request message is with Signal-Group, Signal-Type and the self-defined AVP field of Billing-Leg, and the concrete fill substance of P-CSCF network element is as follows:

Insert the virtual signaling packet numbering 1000 that the Calling Side terminal UE belongs to P-CSCF in the Signal-Group field; Insert 0 in the Signal-Type field, mean that signaling type is the Session Initiation Protocol type; Insert 0 in the Billing-Leg field, mean that charge type is for entering to charging;

Simultaneously, in IMS charging message form, existing timestamp field is filled in the time at that time;

After step S6:CDF entity is received the charging request message that the P-CSCF network element sends, be that 1 P-CSCFCDR charging bill is opened in this session, and by initial charging request message content update charging bill content;

Step S7:CDF entity returns to charge response message ACA to the P-CSCF network element;

As shown in Figure 2:

Step S8:P-CSCF network element is received the media handover request message that the Calling Side terminal UE is sent, and request switches to 7231 type of media by former 711U type of law media;

Step S9:P-CSCF network element forwards media handover request message to callee side;

Step S10:P-CSCF network element is received the response message of the media handover request that callee side is sent;

Step S11:P-CSCF network element is transmitted to the Calling Side terminal UE by the response message of media handover request;

Step S12:P-CSCF network element detects the conversation media face variation has occurred, so send Intermediate Charging ICH request message ACR[Interim to off-line data function CDF entity], this charging request message is with the self-defined AVP field of Signal-Group, Signal-Type, Billing-Leg and List-Of-Media-Traffic-Data-Volumes, and the P-CSCF network element is as follows according to the concrete fill substance of actual value of session:

For List-Of-Media-Traffic-Data-Volumes creates 1 member's item, and:

Insert 0 in Media-Traffic-Change-Condition field under this member's item, the presentation medium switch reasons has triggered this Media Stream scale and has reported;

Insert the time at that time in Media-Traffic-Change-Time field under this member's item;

Each son field of Source-Media-Qos-Information combined field under this member's item is filled in as follows:

Insert 115200 in Source-Media-Qos-Information field Source-Data-Volume-Rtp-Ingress son field, mean that Calling Side enters to rtp stream byte number;

Insert 115200 in Source-Media-Qos-Information field Source-Data-Volume-Rtp-Egress son field, mean that Calling Side goes out to rtp stream byte number;

Insert 0 in Source-Media-Qos-Information field Source-Codec-Type son field, mean that this Calling Side reported is the speech media type of G.711U restraining;

Insert 64 in Source-Media-Qos-Information field Source-Bandwidth son field, mean that Calling Side media bandwidth value is 64Kbps;

Insert 20 in Source-Media-Qos-Information field Source-Aver-Delay son field, mean that Calling Side media average delay is 20ms;

Insert 50 in Source-Media-Qos-Information field Source-Max-Delay son field, mean that Calling Side media maximum delay is 50ms;

Insert 10 in Source-Media-Qos-Information field Source-Aver-Jitter son field, mean that Calling Side media average jitter is 10ms;

Insert 20 in Source-Media-Qos-Information field Source-Max-Jitter son field, mean that the maximum jitter of Calling Side media is 20ms;

Insert 0 in Source-Media-Qos-Information field Source-Aver-Loss son field, mean that Calling Side media average packet loss ratio is 0;

Insert 1 in Source-Media-Qos-Information field Source-Max-Loss son field, mean that the maximum packet loss of Calling Side media is 1%;

Insert 80 in Source-Media-Qos-Information field Source-R-Factor son field, mean that Calling Side media quality R desired value is 80;

Each son field of Dest-Media-Qos-Information combined field under this member's item is filled in as follows:

Insert 115200 in Dest-Media-Qos-Information field Dest-Data-Volume-Rtp-Ingress son field, mean that callee side enters to rtp stream byte number;

Insert 115200 in Dest-Media-Qos-Information field Dest-Data-Volume-Rtp-Egress son field, mean that callee side goes out to rtp stream byte number;

Insert 0 in Dest-Media-Qos-Information field Dest-Codec-Type son field, mean that this callee side reported is the speech media type of G.711U restraining;

Insert 64 in Dest-Media-Qos-Information field Dest-Bandwidth son field, mean that callee side media bandwidth value is 64Kbps;

Insert 20 in Dest-Media-Qos-Information field Dest-Aver-Delay son field, mean that callee side media average delay is 20ms;

Insert 50 in Dest-Media-Qos-Information field Dest-Max-Delay son field, mean that callee side media maximum delay is 50ms;

Insert 10 in Dest-Media-Qos-Information field Dest-Aver-Jitter son field, mean that callee side media average jitter is 10ms;

Insert 20 in Dest-Media-Qos-Information field Dest-Max-Jitter son field, mean that the maximum jitter of callee side media is 20ms;

Insert 0 in Dest-Media-Qos-Information field Dest-Aver-Loss son field, mean that callee side media average packet loss ratio is 0;

Insert 1 in Dest-Media-Qos-Information field Dest-Max-Loss son field, mean that the maximum packet loss of callee side media is 1%;

Insert 80 in Dest-Media-Qos-Information field Dest-R-Factor son field, mean that callee side media quality R desired value is 80;

Step S13:CDF entity upgrades corresponding P-CSCF CDR charging bill after receiving the charging request message that the P-CSCF network element sends;

Step S14:CDF entity returns to charge response message ACA to the P-CSCF network element;

As shown in Figure 3:

Step S15:P-CSCF network element is received the releasing request message that the Calling Side terminal UE is sent;

Step S16:P-CSCF network element forwards releasing request message to callee side;

Step S17:P-CSCF network element sends the whole charging request message ACR[Stop of words to off-line data function CDF entity], this charging request message is with the self-defined AVP field of Signal-Group, Signal-Type, Billing-Leg and List-Of-Media-Traffic-Data-Volumes, and the P-CSCF network element is as follows according to the concrete fill substance of actual value of session:

For List-Of-Media-Traffic-Data-Volumes creates 1 member's item, and:

Insert 2 in Media-Traffic-Change-Condition field under this member's item, expression business termination reason has triggered this Media Stream scale and has reported;

Insert 102400 in Source-Media-Qos-Information field Source-Data-Volume-Rtp-Ingress son field, mean that Calling Side enters to rtp stream byte number;

Insert 102400 in Source-Media-Qos-Information field Source-Data-Volume-Rtp-Egress son field, mean that Calling Side goes out to rtp stream byte number;

Insert 4 in Source-Media-Qos-Information field Source-Codec-Type son field, mean that this Calling Side reported is speech media type G.7231;

Insert 6 in Source-Media-Qos-Information field Source-Bandwidth son field, mean that Calling Side media bandwidth value is 6Kbps;

Insert 65 in Source-Media-Qos-Information field Source-R-Factor son field, mean that Calling Side media quality R desired value is 65;

Insert 102400 in Dest-Media-Qos-Information field Dest-Data-Volume-Rtp-Ingress son field, mean that callee side enters to rtp stream byte number;

Insert 102400 in Dest-Media-Qos-Information field Dest-Data-Volume-Rtp-Egress son field, mean that callee side goes out to rtp stream byte number;

Insert 4 in Dest-Media-Qos-Information field Dest-Codec-Type son field, mean that this callee side reported is speech media type G.7231;

Insert 64 in Dest-Media-Qos-Information field Dest-Bandwidth son field, mean that callee side media bandwidth value is 6Kbps;

Insert 65 in Dest-Media-Qos-Information field Dest-R-Factor son field, mean that callee side media quality R desired value is 65;

After step S18:CDF entity is received the charging request message that the P-CSCF network element sends, upgrade and generate final P-CSCFCDR charging bill;

Step S19:CDF entity returns to charge response message ACA to the P-CSCF network element;

Step S20:P-CSCF network element is received the response message of the releasing request that callee side is sent;

Step S21:P-CSCF network element is transmitted to the Calling Side terminal UE by the response message of releasing request;

Step S22: when all CDR of the same signaling surface protocol type of needs, sorted according to the Signal-Type keyword;

Step S23: when all CDR of the same virtualizes logical network element of needs entity, sorted according to the Signal-Group keyword;

Step S24: when all CDR of the same charging of needs stage, sorted according to the Billing-Leg keyword;

Step S25: when the CDR of the same virtualizes logical network element of needs entity, different Calling Side and callee side media quality, be combined as keyword according to (Signal-Group)+(Source-R-Factor)+(Dest-R-Factor) and sorted;

Step S26: when the same virtualizes logical network element of needs entity, Calling Side and callee side medium type are changed the CDR of (trandcoding) business, be combined as keyword according to (Signal-Group)+(Source-Codec-Type)+(Dest-Codec-Type) and sorted;

Step S27: while having the CDR of media switching in the same virtualizes logical network element of needs entity, communication process, be combined as keyword according to (Signal-Group)+(Media-Traffic-Change-Condition) and sorted;

Above embodiment is the part scene of IMS multimedia peer to peer session business, and the description of this embodiment is only for better explanation use of the present invention.

In sum, the present invention proposes the method for a kind of IMS of realization multimedia peer to peer session charging, IMS multimedia peer to peer session business characteristic be can adapt to and CDR sorting and charging carried out, the present invention simultaneously needs the expanded definition of the information content of filling to Diameter charging request message (ACR/CCR), both solve the existing problem of current IMS multimedia peer to peer session service billing, carried out expansion of content than being easier to according to later technical development again.

Certainly; the present invention also can have other various embodiments; not deviating from, spirit of the present invention and essence thereof are certain; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims

1. a method that realizes the session content charging, is characterized in that, described method comprises:

2. the method for session content charging according to claim 1, it is characterized in that: described charge information acquisition network element, comprise: interconnected boundary point is controlled function IBCF, perhaps Proxy-Call Session Control Function P-CSCF, perhaps access switching control function ATCF, and billing function entity CDF network element.

3. the method for session content charging according to claim 1, it is characterized in that: described signaling type identification field, for distinguishing the signaling surface protocol type of an IMS multimedia peer to peer session, described signaling surface protocol type comprises: Session Initiation Protocol type, protocol type H.323.

4. the method for session content charging according to claim 1, it is characterized in that: described virtual signaling group character field, for being virtualized as a plurality of logical ne entities at a physical NE entity, and, when these a plurality of logical ne entities share 1 Rf or Ro billing interface scene, distinguish the virtualizes logical network element entity of described IMS multimedia peer to peer session ownership.

5. the method for session content charging according to claim 1, it is characterized in that: described charging phase identification field, for distinguishing the charging session information of the conversation initial request message of an IMS multimedia peer to peer session with respect to the charge information acquisition network element, the described charging stage comprises: enter to type of call, to the session charging of incoming call charge information acquisition network element direction; Go out to type of call, to the session charging of exhalation charge information acquisition network element direction.

6. the method for session content charging according to claim 1, it is characterized in that: described Media Stream scale is a combined identification field, for recording the quantitative charge information of the various medium types of IMS multimedia peer to peer session medium surface, the quantitative charge information of described medium type comprises, the Media Stream scale reports cause value field, Media Stream scale to report field, Calling Side media quality information field, callee side media quality information field constantly.

7. the method for session content charging according to claim 6, it is characterized in that: described Media Stream scale reports the cause value field, trigger for recording the cause value that corresponding Media Stream scale reports, comprising: media switching, network element configuration change, session termination, time threshold values cross the border, the flow threshold values crosses the border, conversation aging, disaster tolerance switch.

8. the method for session content charging according to claim 6 is characterized in that: described Media Stream scale reports constantly, the time-parameters reported for recording corresponding Media Stream scale.

9. the method for session content charging according to claim 6, it is characterized in that: described Calling Side media quality information, for recording the Calling Side media quality parameter information that corresponding Media Stream scale reports, comprise: Calling Side enters to the Media Stream byte number, Calling Side goes out to the Media Stream byte number, the Calling Side medium type, Calling Side media bandwidth, Calling Side media average delay, Calling Side media maximum delay, Calling Side media average jitter, the maximum jitter of Calling Side media, Calling Side media average packet loss ratio, the maximum packet loss of Calling Side media, Calling Side media quality R index.

10. the method for session content charging according to claim 6, it is characterized in that: described callee side media quality information, for recording the callee side media quality parameter information that corresponding Media Stream scale reports, comprise: callee side enters to the Media Stream byte number, callee side goes out to the Media Stream byte number, the callee side medium type, callee side media bandwidth, callee side media average delay, callee side media maximum delay, callee side media average jitter, the maximum jitter of callee side media, callee side media average packet loss ratio, the maximum packet loss of callee side media, callee side media quality R index.

11. the method for session content charging according to claim 1, is characterized in that, described IMS multimedia peer to peer session business procedure comprises the following steps:

(2-1) described charge information acquisition network element is received Calling Side terminal session initial request message, and after receiving afterwards callee side terminal responds message, the charge information acquisition network element triggers initial ticketing, record the current time stamp, the charge information of Jiang Gai road session simultaneously is filled up in described AVP structure, and together with described timestamp, is carried in the charging request message that is sent to described billing function entity; Filling in of wherein said charge information comprises:

(2-3) described charge information acquisition network element detects in described IMS multimedia peer to peer session communication process, when variation has occurred in the conversation medium surface, the charge information acquisition network element triggers the interim UDR charging, record the current time stamp, the charge information of Jiang Gai road session simultaneously is filled up in described AVP structure, and together with described timestamp, is carried in the charging request message that is sent to described billing function entity; Filling in of wherein said charge information comprises:

(2-5) when described charge information acquisition network element is received the conversation end request, the charge information acquisition network element triggers and finishes ticketing, record the current time stamp, the charge information of Jiang Gai road session simultaneously is filled up in described AVP structure, and together with described timestamp, is carried in the charging request message that is sent to described billing function entity; Filling in of wherein said charge information comprises: