CN101577624B

CN101577624B - Charging method, capability obtaining method, communication system and relevant equipment

Info

Publication number: CN101577624B
Application number: CN2008100972703A
Authority: CN
Inventors: 梁文亮; 谢勇; 李宏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-05-06
Filing date: 2008-05-06
Publication date: 2012-07-04
Anticipated expiration: 2028-05-06
Also published as: WO2009135425A1; CN101577624A

Abstract

The embodiment of the invention discloses a charging method, a capability obtaining method, a communication system and relevant equipment, which are used for improving the charging accuracy under a header compression mode. The method of the embodiment of the invention comprises the following steps: obtaining capability information of a charging information collecting point; determining a corresponding charging information collecting point according to the capacity information and the header compression charging strategy; and charging according to the charging information collected by the charging information collecting point. The embodiment of the invention also provides the capacity obtaining method, the communication system and the relevant equipment. The embodiment of the invention can effectively improve the charging accuracy under the header compression mode.

Description

A kind of charging method and ability acquisition methods and communication system and relevant device

Technical field

The present invention relates to communication field, relate in particular to a kind of charging method and ability acquisition methods and communication system and relevant device.

Background technology

Robustness head compression (ROHC, Robust Header Compression) mechanism is a kind of compression scheme based on stream of the Internet engineering duty group (IETF, Internet Engineering Task Force) definition.In the network data transmission process, most of leader territory of the grouping of same stream has identical thresholding.ROHC gets a reference packet in certain stream, divide into groups only to send the divide into groups information that changes of relative reference in the leader territory for other, reaching the compression purpose, thereby effectively utilizes bandwidth more.Simultaneously, ROHC also through the frequency and the means such as quantity, the nonsynchronous strict logic of detection and error checking and correction of Control and Feedback message, makes this compression mechanism have the validity and rational robustness of height.

At the existing network work (NWG of group; Network Working Group) in the agreement; Off-line accounting system mainly is to be made up of charging proxy (Accounting Agent), Accounting Client (AccountingClient) and authentication and authorization charging (AAA, Authentication Authorization Accounting) server S erver.Wherein charging proxy is positioned at grappling datapath function (Anchor Data PathFunction; Anchor DPF) unit or service (Serving) DPF and/or base station (BS; BaseStation), charging proxy is mainly used in the collection of charge information, is positioned at Anchor DPF or Serving DPF and/or BS; The information that is used for Monitoring Data stream, and the flow of statistical data packet, size, time etc. information.When charging proxy is positioned at BS and goes up, can add up part and eat dishes without rice or wine to go up the statistics that the data of loss are used for minus flow, it is an optional function that charging proxy is set on BS.Accounting Client generally is positioned at Anchor authentication device (Authenticator) or home agent (HA; Home Agent); Be responsible for collecting the charge information of collecting on the charging proxy; And carry out association and gather generating user data of users record (UDR, UserData Records), report AAA Server.

In research and practice process to prior art, the inventor finds that there is following problem in prior art:

At global microwave system interoperability (WiMAX; Worldwide Interoperability forMicrowave Access) the charge information bleeding point is that charging proxy is positioned at Anchor DPF or Serving DPF and/or BS in the system, and the charging proxy setting on the BS is an optional function.If in network, realized the function of head compression, the existing correct statistics that can't realize correct packed data charge information that is provided with.For example; If charging proxy is arranged on the Serving DPF; And the ROHC function is positioned at Anchor DPF; If carry out the ROHC squeeze operation for descending data, then the charging proxy place on Serving DPF can't count on the traffic flow information before the compression because this moment the data after the data between terminal and the Anchor DPF all are to compress.

Summary of the invention

The embodiment of the invention provides a kind of charging method and ability acquisition methods and communication system and relevant device, can improve charging accuracy under the compact model.

The charging method that the embodiment of the invention provides comprises: the ability information of obtaining charging information collecting point; Confirm corresponding charging information collecting point according to said ability information and head compression charging policy; The charge information of collecting according to said charging information collecting point charges.

The ability acquisition methods that the embodiment of the invention provides comprises: the access authentication request that accessing business network ASN mobile terminal receive is initiated; Said ASN obtains charging information collecting point ability information; Send the capability information message of the charging information collecting point that said ASN obtains to aaa server.

The ability acquisition methods that the embodiment of the invention provides comprises: Accounting Client receives the ability information of aaa server transmission and obtains request; Accounting Client obtains the ability information of each charging information collecting point of requesting query according to said ability information; Send the said ability information of obtaining to aaa server.

The ability acquisition methods that the embodiment of the invention provides comprises: aaa server obtains the ability information of the charging information collecting point that presets in this locality or the storage network element, and said ability information is configured in the aaa server when system constructing, or in the storage network element.

The communication system that the embodiment of the invention provides comprises: choice device, be used to obtain charging information collecting point ability information, and confirm corresponding charging information collecting point according to ability information and head compression charging policy; The policy distribution device is used to send the charging information collecting point selection strategy of the charging information collecting point that said choice device confirms; Aaa server, the charge information that the charging information collecting point that is used for confirming according to said choice device is collected charges; Compression function final controlling element is used for according to said head compression charging policy data message Executive Head processed compressed; The charging information collecting point is used for according to said head compression charging policy the data message that compresses after preceding and/or the compression being added up.

The aaa server that the embodiment of the invention provides comprises: the ability information acquiring unit is used to obtain charging information collecting point ability information; Charging information collecting clicks cell, and the ability information of the charging information collecting point that is used for obtaining according to the ability information acquiring unit and a head compression charging policy are confirmed corresponding charging information collecting point; Charging Detail Record unit, the charge information that is used for clicking according to charging information collecting the charging information collecting point collection that cell confirms charges.

Can find out that from above technical scheme the embodiment of the invention has the following advantages:

In the embodiment of the invention, after obtaining charging information collecting point ability information, can confirm corresponding charging information collecting point according to said ability information and head compression charging policy.Therefore can confirm to carry out the network element of charging information collecting based on the demand of business and when front compressometer expense strategy, thus can under a compact model, satisfy the different service demand, thus improve the charging accuracy under the compact model.

Description of drawings

Fig. 1 is a charging method embodiment flow chart in the embodiment of the invention one;

Fig. 2 is a charge system configuration diagram in the embodiment of the invention;

Fig. 3 is a charging method flow chart in the embodiment of the invention two;

Fig. 4 is a charging method flow chart in the embodiment of the invention three;

Fig. 5 is a charging method flow chart in the embodiment of the invention four;

Fig. 6 is a communication system embodiment sketch map in the embodiment of the invention;

Fig. 7 is an aaa server embodiment sketch map in the embodiment of the invention;

Fig. 8 is a network element embodiment sketch map in the embodiment of the invention.

Embodiment

The embodiment of the invention provides a kind of charging method and ability acquisition methods and communication system and relevant device, is used for improving charging accuracy under the compact model.

In the embodiment of the invention, after obtaining charging information collecting point ability information, can confirm corresponding charging information collecting point according to said ability information and head compression charging policy.Therefore can (promptly need charge according to the demand of business to data before compressing; Still compression back data are chargeed) and work as the front compression and carry out the network element that the residing network element of function confirms to carry out charging information collecting; So can under a compact model, satisfy the different service demand, thereby improve the charging accuracy under the compact model.

See also Fig. 1, the charging method embodiment in the embodiment of the invention one comprises:

101, obtain charging information collecting point ability information;

In the present embodiment, aaa server obtains the ability information of charging information collecting points all in the accessing business network (ASN, Access Service Network); This ability information is meant the charging information collecting point and the relevant information of chargeing, the charge type supported of this charging information collecting point for example, charging way; Charging regulation etc.; It is understandable that this ability information can also be the information of other types equally, does not do qualification here in practical application.

Particularly, the aaa server mode of obtaining charging information collecting point ability information can be divided into three kinds:

One,, obtains portable terminal when carrying out access authentication:

When connection of mobile terminal into network; Portable terminal need be initiated the access authentication flow process to network; Portable terminal is initiated access authentication request to ASN; ASN obtains the ability information of charge information bleeding point in the network and is included in relevant information in the access authentication request, and ASN sends to aaa server with the above-mentioned charging information collecting point ability information access authentication request that comprises, and aaa server obtains the ability information of charge information bleeding point in the network;

The method that ASN obtains the ability information of charge information bleeding point in the network can be: 1, gateway (GW; Gate Way) configuration and the ability information to the charging information collecting point of ASN network self is known, and promptly the ASN network is configured to the relevant information of charging information collecting point among the GW when making up; 2, the authentication device (Authenticator) that receives the portable terminal access authentication request is to Accounting Client query-related information; Accounting Client feeds back to Authenticator with the charging information collecting dot information in the network; If there is not the relevant information of charging information collecting point among the Accounting Client, can inquire about to the charging information collecting point;

Two, aaa server is inquired about to Accounting Client:

Aaa server is to the configuration and the ability information of Accounting Client request charging information collecting point; If do not have relevant information among the Accounting Client; Then Accounting Client can put query-related information to charging information collecting, and Accounting Client reports aaa server with it after configuration of obtaining charging information collecting point and ability information;

Three, when system constructing, be configured:

The ASN network can preset the ability information of each charging information collecting point in the aaa server that is saved in self when making up as network configuration information, then aaa server can get access to the ability information of each charging information collecting point.

Need to prove; Foregoing description be the situation that aaa server obtains charging information collecting point ability information; In practical application; Except aaa server; Anchor point service flow authorized device (AnchorSFA; Service Flow Authorization)/Anchor DPF/Serving DPF equally also can get access to the ability information of charging information collecting point, because Anchor SFA/AnchorDPF/Serving DPF is positioned at Accounting Client in the process of initial network entry, so Anchor SFA/AnchorDPF/Serving DPF can get access to the ability information of charging information collecting point through Accounting Client; When even Anchor SFA/Anchor DPF/Serving DPF separates with Accounting Client, AnchorSFA/Anchor DPF/Serving DPF too can be through the access authentication device to get access to the ability information of each charging information collecting point.

In the present embodiment, obtaining charging information collecting point ability information with aaa server is that example describes, and it is understandable that, the situation that Anchor SFA/Anchor DPF/Serving DPF obtains charging information collecting point ability information is similar.

The ability information of the charging information collecting point of 102, getting according to reed and a head compression charging policy are confirmed corresponding charging information collecting point;

In the present embodiment; Aaa server confirms that according to the demand of business whether needs adopt the head compression to current business, if need to adopt, then carry out subsequent step; Do not adopt if do not need; Then directly charge according to non-compression charging way, concrete non-compression charging way is a prior art, repeats no more here.

If the current business of confirming aaa server need adopt the head compression; Then need compress the definite corresponding charging information collecting point of charging policy with head based on the ability information of the charging information collecting point that obtains, this compression charging policy is used to indicate charging information collecting point to collect and compresses charge informations preceding and/or compression back data.

This step can further include aaa server and confirms corresponding charging information collecting point according to ability information, head compression implementation strategy and the head compression charging policy of charging information collecting point.Wherein head compression implementation strategy comprises: head compression method, a Compression Strategies is carried out granularity (for example based on all corresponding service flow Service Flow of each terminal MS/IP session IP-Session, or based on different Service Flow).

For ease of understanding, provide several kinds of concrete modes of confirming charging information collecting point below:

(1) be positioned at Anchor DPF if function is carried out in the head compression of network side, and head compression charging policy for being added up charging, the data message before compressing confirms that then charging information collecting point is AnchorDPF (or the GW at its place);

In the aforesaid way; Network using ROHC compression method compresses data; The ROHC of network side carries out function and is positioned at Anchor DPF, and head compression charging policy confirms then that for the data message before compressing is added up charging information collecting point is Anchor DPF (or the GW at its place).

(2) if carrying out function, the head compression of network side is positioned at BS; And head compression charging policy is for adding up charging to the data message before compressing; Then the charging information collecting point should be selected in BS, and this moment, charging information collecting point was that Anchor DPF (or the GW at its place) goes up or Serving DPF (or the GW at its place);

In the aforesaid way; Network using payload head compression (PHS; Payload Header Suppression) method is compressed data, and the PHS of network side carries out function and is positioned at BS, and head compression charging policy is for adding up the data message before compressing; Confirm that then charging information collecting point is BS, this moment, charging information collecting point also can be Anchor DPF (or the GW at its place) or Serving DPF (or the GW at its place).

(3) if carrying out function, the head compression of network side is positioned at Anchor DPF; And head compression charging policy is for adding up charging to the data message after the compression; Then charging information collecting point is Anchor DPF (or the GW at its place), and this moment, charging information collecting point also can be Serving DPF (or the GW at its place) or BS;

In the aforesaid way; Network using ROHC compression method compresses data; The ROHC of network side carries out function and is positioned at Anchor DPF; And head compression charging policy confirms then that for the data message after the compression is added up charging information collecting point is Anchor DPF, and this moment, charging information collecting point also can be Serving DPF or BS.

(4) be positioned at BS if a function is carried out in the head compression of network side, and a head compression charging policy is for adding up charging to the data message after the compression, then charging information collecting point is BS;

In the aforesaid way, network using PHS compression method compresses data, and the PHS of network side carries out function and is positioned at BS, and head compression charging policy confirms then that for the data message after the compression is added up charging information collecting point is BS.

(5) be positioned at Anchor DPF if a function is carried out in the head compression of network side, and a head compression charging policy for to before compressing with compression after data message add up charging, confirm that then charging information collecting point is Anchor DPF (or the GW at its place);

In the aforesaid way; Network using ROHC compression method compresses data; The ROHC of network side carries out function and is positioned at Anchor DPF; And a head compression charging policy for to before compressing with compression after data message add up, confirm that then charging information collecting point is Anchor DPF (or the GW at its place).

(6) be positioned at BS if a function is carried out in the head compression of network side, and a head compression charging policy for to before compressing with compression after data message add up charging, confirm that then the charging information collecting point should be BS;

In the aforesaid way, network using PHS compression method compresses data, and the PHS of network side carries out function and is positioned at BS, and a head compression charging policy for to before compressing with compression after data message add up, confirm that then charging information collecting point is BS.

(7) if network using multiple head compression method to different aspects; Compression function lays respectively at Anchor-DPF and BS; And head compression charging policy confirms then that for the data message before compressing is added up charging charging information collecting point is Anchor DPF (or the GW at its place);

In the aforesaid way; Network adopts ROHC (being primarily aimed at the IP layer) and PHS (being primarily aimed at the MAC layer) compression method that data are compressed simultaneously; The ROHC of network side carries out function and is positioned at AnchorDPF; PHS carries out function and is positioned at BS, and head compression charging policy confirms then that for the data message before compressing is added up charging information collecting point is Anchor DPF (or the GW at its place).

(8) if network using multiple head compression method to different aspects, a compression function lays respectively at Anchor-DPF and BS, and a head compression charging policy confirms then that for the data message after the compression is added up charging charging information collecting point is BS;

In the aforesaid way; Network adopts ROHC (to the IP layer) and PHS (to the MAC layer) compression method that data are compressed simultaneously; The ROHC of network side carries out function and is positioned at Anchor DPF; PHS carries out function and is positioned at BS, and head compression charging policy confirms then that for the data message after the compression is added up charging information collecting point is BS.

(9) if network using multiple head compression method to different aspects; Compression function lays respectively at Anchor-DPF and BS; And a head compression charging policy for to before compressing with compression after data message add up charging; Then charging information collecting point is Anchor DPF and BS, and the data message before the charging information collecting point on the Anchor DPF compresses is collected, and the data message after the last charging information collecting point of BS compresses is collected;

In the aforesaid way; Network adopts ROHC (to the IP layer) and PHS (to the MAC layer) compression method that data are compressed simultaneously; The ROHC of network side carries out function and is positioned at Anchor DPF; PHS carries out function and is positioned at BS, and a head compression charging policy for to before compressing with compression after data message add up, then confirm charging information collecting point be Anchor DPF (or the GW at its place) upward and BS; Data message before charging information collecting point on the Anchor DPF (or the GW at its place) compresses is collected, and the data message after the last charging information collecting point of BS compresses is collected.

Relation between charging information collecting point and each network element is as shown in Figure 2, and among Fig. 2, the head compression is carried out function and is positioned at portable terminal and ASN.Carry out the consideration of function concrete position in ASN from the head compression, 2 kinds of frameworks are arranged: the head compression of a kind of ASN is carried out function and is positioned at BS; The head compression of a kind of ASN is carried out function and is positioned at the Anchor DPF on the ASN-GW, that is to say that the charging information collecting point in the present embodiment can be BS, perhaps is Anchor DPF, perhaps is Anchor DPF and BS simultaneously.

In the foregoing description; With ROHC and PHS head compression method is that example describes; It is understandable that, for other compression method, Real Time Compression agreement (CRTP for example; Compressed Real-TimeProtocol), enhancement mode Real Time Compression agreement (ECRTP, Enhanced Compressed Real-TimeProtocol) etc. is suitable for too.

Above-mentioned is to confirm that with aaa server the mode of charging information collecting point is that example describes, and it is understandable that Anchor DPF/Serving DPF equally also can confirm the charging information collecting point, and concrete flow process is similar, repeats no more here.

103, the charge information of collecting based on charging information collecting point charges.

The charge information of charging information collecting point capturing service data; And these charge informations are reported to Accounting Client; Accounting Client gathers the charge information of collecting with the back and generates UDR data (user's usage data record); And the UDR data are sent to aaa server; The user is chargeed according to these UDR data by aaa server, the process of the charge information of concrete charging information collecting point capturing service data and the charging process of aaa server are prior art, do not do qualification here.

In the present embodiment, after obtaining charging information collecting point ability information, can confirm corresponding charging information collecting point according to said ability information and head compression charging policy.Therefore can (promptly need charge according to the demand of business to data before compressing; Still compression back data are chargeed) and carry out the residing network element of function when the front compression and confirm to carry out the charging information collecting point; So can under a compact model, satisfy the different service demand, thereby improve the charging accuracy under the compact model.

In above-mentioned steps 102, confirm charging information collecting point based on an ability information and a head compression charging policy after, can further include the step of information such as distributing bill information bleeding point selection strategy indication.Three kinds of charging method embodiment that comprise information such as distributing bill information bleeding point selection strategy indication below are provided.

The embodiment of the invention two provides a kind of charging method, and in this method, Anchor SFA, AnchorDPF and Serving SFA are positioned on the same ASN GW, and this charging method flow chart is as shown in Figure 3.301, terminal (MS, Mobile Subscriber) access authentication flow process.

In this step, aaa server can obtain charging information collecting point ability information, and confirms the charging information collecting point based on ability information and head compression charging policy, and its method repeats no more with the step 101 and 102 of embodiment one here.

Aaa server also can obtain charging information collecting point ability information after MS access authentication flow process is accomplished; Obtaining the mode of charging information collecting point ability information can obtain for the mode that the aaa server in the step 101 among the embodiment one is configured to Accounting Client inquiry mode or during at system constructing; The method of confirming charging information collecting point according to ability information and head compression charging policy repeats no more with the step 102 among the embodiment one here.

In this step, also can confirm the charging information collecting point by SFADPF or Anchor DPF, the charging information collecting dot information is sent to aaa server.

After aaa server is confirmed charging information collecting point; Send message for Anchor SFA; Wherein comprise the indication of charging information collecting point selection strategy in this message; Can also comprise information such as service quality (QoS, Quality of Service) information, head compression implementation strategy and head compression charging policy in this message.

Charging information collecting point selection strategy indication is used for the charging information collecting dot information of indicating ASN to be determined;

Head compression implementation strategy is used to indicate whether and will carries out a compression, head compression method, a Compression Strategies execution granularity (for example carry out the head compression or carry out the head compression based on different Service Flow based on all corresponding Service Flow of each MS/IP-Session) to business data flow; This compression implementation strategy can be the head compression implementation strategy of being made by Anchor SFA or Anchor DPF.

Head compression charging policy is used to indicate charging information collecting point to collect and compresses charge informations preceding and/or compression back data.

The message that aaa server sends can be based on all ServiceFlow among each MS/IP-Session, also can be to different Service Flow.

302, ASN-GW triggers Anchor SFA and creates initial service flow ISF;

303, MS and HA carry out obtaining and register flow path of IP address;

304, Anchor SFA to the service flow management device that is positioned at BS (SFM, Service Flow Manger) transmit path register requirement Path_Reg_Req message to initiate the business data flow visioning procedure; Comprise the indication of charging information collecting point selection strategy in this path login request message, this message can further include: information such as head compression implementation strategy, head compression charging policy and QoS information.

Anchor SFA indicates based on charging information collecting point selection strategy; If indicated the charging information collecting point on the Anchor DPF to carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the Anchor DPF is opened the charging information collecting function based on head compression charging policy.

Anchor SFA is based on the indication of head compression implementation strategy; If the indication of head compression implementation strategy is carried out the head compression to business data flow; Then the compression function entity delivery header compression parameters of Anchor DFA is given Service SFA, and wherein compressed parameter comprises information such as a head compression method and a compression channel parameter, and from the beginning the head compression method in this compressed parameter can compress and obtain in the implementation strategy; This compression channel parameter is a preset parameter, and is relevant with the channel attribute of carrying out the head compression.If Anchor DFA does not have a compression function entity, then the delivery header compression parameters is not given Service SFA.

305, SFM sends dynamic service application request (DSA_Req, Dynamic ServiceApplication Request) message to MS; Comprise the indication of charging information collecting point selection strategy in this message, this message also further comprises: information such as head compression implementation strategy, head compression charging policy and Qos information.

SFM indicates according to charging information collecting point selection strategy; If indicated the charging information collecting point on the BS to carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the BS is opened the charging information collecting function according to head compression charging policy.Whether SFM is allowed to according to current got resource and the path register requirement that QoS information check Anchor SFA initiates, if be allowed to, then sends DSA_Req message to MS.Also further comprise a compression channel parameter etc. in the DSA_Req message.

SFM obtains head compression method based on head compression implementation strategy.

306, MS is to a compression function entity delivery header compression request that is positioned at himself; Comprise compressed parameter in this request; In compressed parameter, include information such as a head compression method and a compression channel parameter, this compression function entity is carried out corresponding head compression according to compressed parameter.

307, the last compression function entity of MS is to MS delivery header compression response message;

308, MS sends dynamic service application response DSA-Rsp message to SFM, and this message comprises information such as a head compression method and a compression channel parameter.

309, SFM is to Serving SFA transmit path register response Path_Reg_Rsp message authentication resource reservation.

In this message, comprise information such as a head compression method and a compression channel parameter; If in step 305; The charging information collecting point that is positioned on the BS has been opened the charging information collecting function based on head compression charging policy, and the charging information collecting function that in Path_Reg_Rsp message, may further include charging information collecting point is opened acknowledge message;

310, Anchor SFA is to SFM transmit path accreditation verification Path_Reg_Ack message authentication resource reservation;

This method can further include step 311.

311, the dynamic service of the compression function entity of MS and anchor point SFA change (DSC, DynamicService Change) flow process.

If a compression negotiation is not accomplished in step 305-308, a compression negotiation can be accomplished in step 312 so.

Subsequent step repeats no more with the step 103 of embodiment one here.In the present embodiment; Anchor SFA and Anchor DPF are positioned at same ASN GW; Aaa server issues QoS information and charging information collecting point selection strategy is indicated (according to the difference of practical situations; Also might issue head compression charging policy and head compression implementation strategy), so can specify the charging information collecting point to carry out the collection of corresponding charge information, therefore can improve charging accuracy under the compact model.It is understandable that, only be that example describes with the initial service flow in the present embodiment, and in practical application, ASN-GW also can trigger Anchor SFA and create other pre-provisioned service flow, and concrete traffic flow types is not done qualification.The embodiment of the invention three provides a kind of charging method, and the Anchor SFA of this method separates with Anchor DPF, and this charging method flow chart is as shown in Figure 4.

401, the access authentication flow process of MS;

In the process of access authentication, aaa server can obtain the ability information of each charging information collecting point, and after perhaps the access authentication of MS was accomplished, aaa server obtained each charging information collecting point ability information.

In the process of access authentication, aaa server according to the charging information collecting point ability information that receives specifically can for: aaa server receives the message that comprises charging information collecting point ability information of charging information collecting point transmission and obtains;

Or

Aaa server is to the ability information of network inquiry charging information collecting point; Particularly; Aaa server can be inquired about the ability information of charging information collecting point to Accounting Client; If hold capacity information not in the Accounting Client, then by Accounting Client to each charging information collecting point query capability information, and report this ability information to aaa server

Or

Aaa server obtains the ability information of the charging information collecting point of self preserving, and said ability information is predisposed in the aaa server when system constructing.

It is understandable that, in practical application, except obtaining by aaa server the ability information of charging information collecting point, can also be by the ability information of Anchor SFA or Anchor DPF or serving DPF reception authentication device feedback charging information gathering point.

Aaa server gets access to after the ability information of charging information collecting point, and joint head compression charging policy can be confirmed the charging information collecting point, generates the indication of charging information collecting point selection strategy;

Need to prove; The head compression charging policy here can be formulated by aaa server; Also can formulate by Anchor SFA or Anchor DPF; By Anchor SFA or Anchor DPF head is compressed charging policy and be sent to aaa server, generate charging information collecting point selection strategy by aaa server;

In addition; If get access to the ability information of charging information collecting point by Anchor SFA or Anchor DPF; Then can also generate the indication of charging information collecting point selection strategy according to head compression charging policy and the ability information that gets access to by Anchor SFA or Anchor DPF; And this indication is sent to aaa server, issue this indication by aaa server.

Cited 9 kinds of modes in the process of above-mentioned concrete selection charging information collecting point such as the preceding method repeat no more here.

Below with aaa server acquisition capability information and generate charging information collecting point selection strategy and be designated as example and describe:

After the access authentication success, user's hometown AAA server is issued AnchorSFA with information such as quality of services for users (QoS, Quality of Service) information and the indications of charging information collecting point selection strategy.

Need to prove that above-mentioned aaa server can also compress charging policy to Anchor SFA delivery header compression implementation strategy and head:

The above-mentioned information that aaa server issues can be based on all Service Flow among each MS/IP-Session, also can be to different Service Flow.

402, create initial service flow between MS and the Anchor DPF;

In the present embodiment, ASN-GW triggers Anchor SFA and creates the initial service flow ISF between MS and the Anchor DPF;

It is understandable that, only be that example describes with the initial service flow in the present embodiment, and in practical application, ASN-GW also can trigger Anchor SFA and create other pre-provisioned service flow, and concrete traffic flow types is not done qualification.

403, MS and HA carry out obtaining and registration process of IP address;

404, Anchor SFA sends resource reservation (RR, Resource Reservation) RR_Req message request reserved resource to Serving SFA and creates Business Stream.

In RR_Req message, comprise the QoS information and the indication of charging information collecting point selection strategy of Business Stream; This message also further can comprise: head compression charging policy and head compression implementation strategy.

405, Serving SFA sends Path_Reg_Req message to SFM.

If the application head compression mechanism, a compression function that is positioned at Anchor DPF transmits compressed parameter (comprising head compression method, a compression channel parameter etc.) to Serving SFA;

In Path_Reg_Req message, comprise compressed parameter, the indication of charging information collecting point selection strategy and quality of service information etc., this message can also comprise: head compression charging policy and head compression implementation strategy.

If Anchor DPF place does not have a compression function or do not have the application head compression mechanism, can not comprise compressed parameter here;

Indication can be that the head compression implementation strategy and the charging information collecting point selection strategy of indicating among the RR_Req that receives of Serving SFA indicated to head compression implementation strategy with charging information collecting point selection strategy, also can be the strategy that when Anchor SFA does not have distributing bill information bleeding point selection strategy, is made their own by Serving SFA;

Head compression implementation strategy and the indication of charging information collecting point selection strategy can be based on all Service Flow among certain MS/IP-Session, also can be to different Service Flow;

If indicated the charging information collecting point on the Anchor DPF will carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the Anchor DPF will compress charging policy unlatching charging information collecting function based on head.

406, SFM sends DSA_Req message to MS;

Whether SFM is allowed to according to current got resource and user's QoS information check dynamic service application request, if be allowed to, then sends DSA_Req message to MS.Comprise compressed parameter in the DSA_Req message.

If indicated the charging information collecting point on the BS will carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the BS will compress charging policy unlatching charging information collecting function based on head.

407, MS comprises the compressed parameter that receives from network side to a compression function entity delivery header compression request that is positioned at himself in this request.

408, the last compression function entity of MS is to MS delivery header compression response message;

409, MS sends DSA-Rsp message to SFM.

The compressed parameter that in this message, comprises negotiation.If a compression negotiation process can not be accomplished in DSA process (being step 406 to step 409), also can hold consultation through the DSC process in the 412nd step.

410, SFM sends Path_Reg_Rsp message authentication resource reservation to Serving SFA;

The compressed parameter that in this message, comprises negotiation; If the charging information collecting point among the BS is indicated according to charging policy and opened the charging information collecting function, can comprise in Path_Reg_Rsp message that also the charging information collecting function of charging information collecting point is opened acknowledge message.

411, Serving SFA sends Path_Reg_Ack message authentication resource reservation to SFM;

If 412 compression negotiations are not accomplished in the DSA process, also can pass through the DSC process and continue a negotiation of compression until consulting completion;

Need to prove that step 412 is an optional step, even the process of a compression negotiation is accomplished in step 406 to step 409, then execution in step 412 not.

413, Serving SFA sends RR_Rsp message authentication resource reservation to Anchor SFA;

The compressed parameter that in this message, comprises negotiation; If the charging information collecting point among the Anchor DPF has been opened the charging information collecting function according to charging policy indication, comprise the charging information collecting function unlatching acknowledge message of charging information collecting point in also can Path_Reg_Rsp message.

414, Anchor SFA sends RR_Ack message authentication resource reservation to Serving SFA.

Subsequent step repeats no more with the step 103 of embodiment one here.Describe pre-provisioned service flow among above-mentioned two embodiment and set up the flow process of the head compression charging policy distribution under the situation; Anchor SFA all is the initial service flow ISF that create between MS and the Anchor DPF; Aaa server issues QoS information and charging information collecting point selection strategy is indicated (according to the difference of practical situations; Also might issue head compression charging policy and head compression implementation strategy); So can specify the charging information collecting point to carry out the collection of corresponding charge information, therefore can improve charging accuracy under the compact model.

The embodiment of the invention four provides a kind of charging method, and the situation that this method is set up to dynamic service flow describes, and sees also Fig. 5, and this method comprises:

501, Application Function (AF, Application Function) provides applied business relevant utility cession information to policy, billing functional entity (PCRF, Policy Counting Rule Function);

502, mandate of policy, billing functional entity implementation strategy and strategic decision-making process, and the PCC rule that generates is dealt into Anchor SFA.

In the present embodiment, comprise the charging information collecting point selection strategy indication that PCRF authorizes in the PCC rule;

Can also comprise in this PCC rule: head compression implementation strategy and head compression charging policy.

Need to prove that if PCRF had obtained the ability information of charge information bleeding point among the ASN before issuing the PCC rule, then PCRF can make charging information collecting point selection strategy in view of the above.

PCRF can obtain the ability information of network billing information gathering point in the following manner:

The configuration and the ability information of PCRF charge information bleeding point in the aaa server requester network; If do not preserve relevant information in the aaa server; Aaa server is to the configuration and the ability information of Accounting Client request charging information collecting point; If do not have relevant information among the Accounting Client; Then Accounting Client can put query-related information to charging information collecting, and Accounting Client reports aaa server with it after configuration of obtaining charging information collecting point and ability information;

Or

Go in the network process at the terminal, when aaa server obtains the ability information of charge information bleeding point in the network, initiatively report PCRF;

Or

When building network, the ability information of each charging information collecting point is preset among the PCRF as network configuration information, then PCRF can get access to the ability information of each charging information collecting point.

Head compression implementation strategy and the indication of charging information collecting point selection strategy also can be accomplished at the ASN GW place at Anchor SFA or Serving SFA/Anchor DPF place;

The charging information collecting point selection strategy indication that PCRF authorizes, head compression charging policy and head compression implementation strategy all are relevant with concrete Service Flow.

503, Anchor SFA sends RR_Req message to Serving SFA;

Anchor SFA sends RR_Req message request reserved resource to Serving SFA and creates Business Stream according to the strategy that in the access authentication flow process, receives from aaa server.

In RR_Req message, comprise the QoS information and the indication of charging information collecting point selection strategy of Business Stream; Can also compress implementation strategy and head compression charging policy by head in this RR_Req message;

Head compression implementation strategy and charging information collecting point selection strategy can be head compression implementation strategy and the indications of charging information collecting point selection strategy that is issued to Anchor SFA by aaa server, also can be head compression implementation strategy and the charging information collecting point selection strategies that when AAA does not have distributing bill information bleeding point selection strategy, is made their own by Anchor SFA;

Indication is relevant with concrete ServiceFlow to head compression implementation strategy with charging information collecting point selection strategy.

504, Serving SFA sends Path_Reg_Req message to the SFM that is positioned at BS.

The application head compression mechanism need to prove, if then can transmit compressed parameter (comprising head compression method, a compression channel parameter etc.) to Serving SFA with the Anchor DPF that Serving SFA integrates;

In Path_Reg_Req message, comprise compression parameters (comprising head compression method, a compression channel parameter etc.) and the indication of charging information collecting point selection strategy etc.

Can also comprise in this Path_Reg_Req message: head compression implementation strategy and head compression charging policy;

Charging information collecting point selection strategy indication can be the charging information collecting point selection strategy indication of indicating among the RR_Req that receives of Serving SFA, also can be the charging information collecting point selection strategy that when Anchor SFA does not have distributing bill information bleeding point selection strategy, is made their own by Serving SFA;

Indication is relevant with concrete ServiceFlow to head compression implementation strategy with charging information collecting point selection strategy;

505, SFM sends DSA_Req message to MS;

Whether SFM is allowed to according to the path register requirement of current got resource and user's QoS information check Serving SFA initiation, if be allowed to, then sends DSA_Req message to MS.Comprise compressed parameter in the DSA_Req message.

506, MS comprises the compressed parameter that receives from network side to a compression function entity delivery header compression request that is positioned at himself in this request.

507, the last compression function entity of MS is responded a compression response message to MS;

508, MS sends DSA-Rsp message to SFM.

The compressed parameter that in this message, comprises negotiation.If a compression negotiation process can not be accomplished in DSA process (step 505 to step 508), also can hold consultation through the DSC process in the 511st step.

509, SFM sends Path_Reg_Rsp message authentication resource reservation to Serving SFA;

The compressed parameter that in this message, comprises negotiation; If the charging information collecting point among the BS has been opened the charging information collecting function according to charging policy indication, comprise the charging information collecting function unlatching acknowledge message of charging information collecting point in also can Path_Reg_Rsp message.

510, Serving SFA sends Path_Reg_Ack message authentication resource reservation to SFM;

If 511 compression negotiations are not accomplished in the DSA process, also can pass through the DSC process and continue a negotiation of compression until consulting completion;

Need to prove that step 511 is an optional step, if a compression negotiation process can accomplish in step 505 to step 508, execution in step 511 not then.

512, Serving SFA sends RR_Rsp message authentication resource reservation to Anchor SFA;

513, Anchor SFA sends RR_Ack message authentication resource reservation to Serving SFA.

514, Anchor SFA sends PCC rule acknowledge message to PCRF;

515, PCRF sends the requested service acknowledge message to AF.

Subsequent step repeats no more with the step 103 of embodiment one here.Introduced the flow process of charging method in the foregoing description, more than only describe with four examples, be understandable that, in actual applications, can charge by other similar modes equally.

In the foregoing description, after obtaining charging information collecting point ability information, can confirm corresponding charging information collecting point according to said ability information and head compression charging policy.Therefore can confirm to carry out the network element of charging information collecting based on the demand of business and when front compressometer expense strategy, thus can under a compact model, satisfy the different service demand, thus improve the charging accuracy under the compact model.

The ability acquisition methods embodiment that introduces below in the embodiment of the invention describes, and specifically can comprise following three kinds of situation:

One,, obtains portable terminal when carrying out access authentication:

The access authentication request that accessing business network ASN mobile terminal receive is initiated; Send the reporting ability Indication message to all charging information collecting points; Said charging information collecting point sends the message that comprises self-ability information to aaa server.

The method that ASN obtains the ability information of charge information bleeding point in the network can be: 1, GW is known to the configuration and the ability information of the charging information collecting point of ASN network self, and promptly the ASN network is configured to the relevant information of charging information collecting point among the GW when making up; 2, the authentication device (Authenticator) that receives the terminal access authentication request is to Accounting Client query-related information; AccountingClient feeds back to Authenticator with the charging information collecting dot information in the network; If there is not the relevant information of charging information collecting point among the AccountingClient, can inquire about to the charging information collecting point;

Two, aaa server is inquired about to Accounting Client

Three, when system constructing, be configured:

The ASN network can be preset to the ability information of each charging information collecting point in the aaa server as network configuration information when making up, and then aaa server can get access to the ability information of each charging information collecting point.

Need to prove that the aforementioned capabilities acquisition methods can be based on the compressometer charging method in the previous embodiment, also can be not based on a compressometer charging method, and independent the existence.

Described three kinds of situation of acquisition capability information in the foregoing description, it is understandable that, in practical application, adopted the similar means equally can acquisition capability information according to aforesaid way, idiographic flow limit.

In the foregoing description, get access to after the ability information, can ability information be submitted to network side, so that network side is confirmed the charging information collecting point according to this ability information, so the foregoing description can provide support for charging flow;

Need to prove that aforementioned capabilities information is only for scheduling the charging field, when being used to charge; What obtain is and the relevant ability information of chargeing; And for example when carrying out Data Transmission Controlling, then need obtain the ability information relevant with transmitting control, the adaptation scene of concrete ability information does not limit; Therefore the ability information of obtaining in the present embodiment can be applied in the various application scenarioss, to satisfy application demand.

Introduce communication system embodiment in the embodiment of the invention below, see also Fig. 6, communication system embodiment comprises in the embodiment of the invention:

Selecting arrangement 601 is used to obtain charging information collecting point ability information, confirms corresponding charging information collecting point based on ability information and head compression charging policy;

Policy distribution device 602 is used to send the charging information collecting point selection strategy of the charging information collecting point that choice device 601 confirms; The also further delivery header compression of this device implementation strategy and head compression charging policy.

Aaa server 603 is used for chargeing according to the charge information that the charging information collecting point that choice device 601 is confirmed is collected;

Compression function final controlling element 604 is used for according to head compression implementation strategy data message Executive Head processed compressed;

Charging information collecting point 605 is used for according to said head compression charging policy the data message that compresses after preceding and/or the compression being added up.

In the above-mentioned communication system, choice device 601 is aaa server 603 (being that choice device 601 is the part in the aaa server 603 with policy distribution device 602) with policy distribution device 602, or Anchor SFA, or Anchor DPF.

In the above-mentioned communication system, a compression function final controlling element 604 is Anchor DPF and/or BS;

Charging information collecting point 605 is Anchor DPF, or BS, or Serving DPF, or AnchorDPF and BS.

See also Fig. 7, aaa server embodiment comprises in the embodiment of the invention:

Ability information acquiring unit 701 is used to obtain charging information collecting point ability information;

Specifically can obtain charging information collecting point ability information through following three kinds of modes:

One,, obtains portable terminal when carrying out access authentication:

Two, aaa server is inquired about to Accounting Client:

Three, when system constructing, be configured:

Charging information collecting clicks cell 702, and the charging information collecting point ability information and the head compression charging policy that are used for obtaining according to ability information acquiring unit 701 are confirmed corresponding charging information collecting point;

Charging Detail Record unit 703, the charge information that is used for clicking according to charging information collecting the charging information collecting points collection that cell 702 confirms charges.

See also Fig. 8, the network element embodiment in the embodiment of the invention comprises:

Charging information collecting unit 801 is used for based on the head compression charging policy that gets access to data message before compressing and/or compression back data message being added up;

Charge information reports unit 802, is used for the data message after aaa server reports charging information collecting unit 801 statistics.

Network element embodiment in the present embodiment can further include: a compression function performance element 803; Be used for compressing implementation strategy to data message Executive Head processed compressed according to head, this compression function performance element 803 is compressing an implementation strategy to also obtaining head from network side (for example aaa server) before the data message Executive Head processed compressed.

Network element embodiment in the present embodiment can further include: acquiring unit 804; Be used to obtain charging information collecting point ability information; Send the charging information collecting point ability information that gets access to network side (for example aaa server); Confirm head compression charging policy by network side (for example aaa server) according to this ability information, receive this head compression charging policy by charging information collecting unit 801 afterwards.

Network element in the foregoing description can be Anchor DPF, or BS.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in a kind of computer-readable recording medium; This program comprises the steps: when carrying out

Obtain charging information collecting point ability information;

Confirm corresponding charging information collecting point based on a said ability information and the head compression charging policy that presets;

The charge information of collecting according to said charging information collecting point charges.

The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.

More than a kind of charging method provided by the present invention and ability acquisition methods and communication system and relevant device have been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a charging method is characterized in that, comprising:

Obtain the ability information of charging information collecting point;

Compress implementation strategy based on said ability information, head compression charging policy and head and confirm corresponding charging information collecting point, said head compression charging policy is used to indicate before the charging information collecting point collection compression and/or the charge information of compression back data;

2. method according to claim 1 is characterized in that, the said step of obtaining charging information collecting point ability information comprises:

The message that comprises ability information that the authentication and authorization charging aaa server sends according to the charging information collecting point that receives is obtained the ability information of said charging information collecting point;

Or

Aaa server is to the ability information of network inquiry charging information collecting point;

Or

Aaa server obtains the ability information of charging information collecting point according to the ability information that when system constructing, is disposed at the charging information collecting point of said aaa server.

3. method according to claim 1 is characterized in that, the said step of obtaining charging information collecting point ability information comprises:

Anchor point service flow authorized device Anchor SFA or anchor point datapath function Anchor DPF or service DPF receive the ability information of the charging information collecting point of authentication device transmission;

Said Anchor SFA or Anchor DPF perhaps serve DPF and receive the ability information that Accounting Client sends charging information collecting point.

4. method according to claim 1 is characterized in that, saidly confirms that according to said ability information, head compression charging policy and a head compression implementation strategy step of corresponding charging information collecting point comprises:

If said head compression charging policy for the data message before compressing is chargeed, by anchor point DPF Executive Head compression function, confirms that then charging information collecting point is on anchor point DPF or the anchor point DPF place gateway;

If said head compression charging policy for the data message before compressing is chargeed, by BS Executive Head compression function, confirms that then charging information collecting point is BS, or anchor point DPF, or Serving DPF, or anchor point DPF place gateway, or Serving DPF place gateway;

If said head compression charging policy is for chargeing to the data message after the compression, by anchor point DPF Executive Head compression function, then charging information collecting point is anchor point DPF, or BS, or Serving DPF, or anchor point DPF place gateway, or Serving DPF place gateway;

If said head compression charging policy is for chargeing to the data message after the compression, by BS Executive Head compression function, then charging information collecting point is BS;

If said head compression charging policy is for chargeing to the data message that compresses after preceding and the compression, by anchor point DPF Executive Head compression function, then charging information collecting point is anchor point DP, or anchor point DPF belongs to gateway;

If said head compression charging policy is for chargeing to the data message that compresses after preceding and the compression, by BS Executive Head compression function, then charging information collecting point is BS;

If said head compression charging policy is for chargeing to the data message before compressing, by anchor point DPF and BS Executive Head compression function, then charging information collecting point is anchor point DPF, or anchor point DPF place gateway;

If said head compression charging policy is for chargeing to the data message after the compression, by anchor point DPF and BS Executive Head compression function, then charging information collecting point is BS;

If said head compression charging policy is for chargeing to the data message that compresses after preceding and the compression; By anchor point DPF and BS Executive Head compression function; Then charging information collecting point is anchor point DPF and BS, and wherein anchor point DPF collects the preceding data message of compression, and BS collects the data message after the compression.

5. method according to claim 4 is characterized in that, saidly confirms that according to said ability information, head compression charging policy and a head compression implementation strategy step of corresponding charging information collecting point comprises afterwards:

The indication of distributing bill information bleeding point selection strategy.

6. method according to claim 5 is characterized in that, the step of said distributing bill information bleeding point selection strategy indication comprises:

Aaa server sends the indication of charging information collecting point selection strategy to anchor point SFA, and said charging information collecting point selection strategy indication can also can be to different service flow based on all service flow in a portable terminal or the Internet protocol IP session;

Accessing business network gate triggers said anchor point SFA and creates pre-provisioned service flow;

Portable terminal and home agent are alternately to obtain the IP address and to register the Internet.

7. method according to claim 6 is characterized in that, said portable terminal and home agent are alternately to comprise after the step of obtaining and register internet-ip address:

Said anchor point SFA comprises the indication of charging information collecting point selection strategy, head compression implementation strategy and quality of service information to service flow management device SFM transmit path register requirement in the register requirement of said path;

Said SFM judges according to current available resource and said quality of service information whether said path register requirement is allowed to; If be allowed to; Then send dynamic service application request, comprise indication of charging information collecting point selection strategy and head compression implementation strategy in the said dynamic service application request to portable terminal;

Said SFM indicates based on said charging information collecting point selection strategy; If indicated the charging information collecting point on the BS to carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the BS is opened the charging information collecting function based on head compression charging policy;

Said portable terminal is carried out corresponding head compression based on the head compression implementation strategy in the said dynamic service application request.

8. method according to claim 6 is characterized in that, said portable terminal and home agent are alternately to comprise after the step of obtaining and register internet-ip address:

Said anchor point SFA sends resource reservation RR_Req request to service SFA, comprises the quality of service information and the indication of charging information collecting point selection strategy of Business Stream in the said resource reservation request;

Said anchor point SFA indicates based on said charging information collecting point selection strategy; If indicated the charging information collecting point on the anchor point DPF to carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the anchor point DPF is opened the charging information collecting function based on said head compression charging policy;

Said service SFA comprises the indication of charging information collecting point selection strategy, head compression implementation strategy and the quality of service information of Business Stream to SFM transmit path register requirement in the register requirement of said path;

Said SFM indicates based on said charging information collecting point selection strategy; If indicated the charging information collecting point on the BS to carry out charging information collecting in the charging information collecting point selection strategy, the charging information collecting point that then is positioned on the BS is opened the charging information collecting function based on head compression charging policy.

9. method according to claim 8 is characterized in that,

If the charging information collecting point on the BS has been opened the charging information collecting function according to head compression charging policy, then can also comprise the charging information collecting function in the resource reservation response and open acknowledge message.

10. method according to claim 5 is characterized in that, the step of said distributing bill information bleeding point selection strategy indication comprises:

Policy, billing functional entity PCRF issues quality of service information through anchor point SFA and service SFA to SFM, compressed parameter and the indication of charging information collecting point selection strategy;

If indicated the charging information collecting point on the anchor point DPF will carry out charging information collecting in the said charging information collecting point selection strategy, the charging information collecting point that then is positioned on the anchor point DPF is opened the charging information collecting function based on head compression charging policy;

Said SFM judges according to current available resource and said quality of service information whether the path register requirement is allowed to; If be allowed to; Then send dynamic service application request, comprise indication of charging information collecting point selection strategy and compressed parameter in the said dynamic service application request to portable terminal;

Said portable terminal is carried out corresponding head compression according to the compressed parameter in the said dynamic service application request.

11. method according to claim 10 is characterized in that, the said ability information of obtaining charging information collecting point is:

Said PCRF obtains the ability information of charging information collecting point.

12. method according to claim 11 is characterized in that, the step that said PCRF obtains the ability information of charging information collecting point comprises:

The ability information of said PCRF charge information bleeding point in the aaa server requester network;

Or go in the network process at the terminal, said PCRF receives the ability information that said aaa server initiatively reports;

Or when building network, the ability information of each charging information collecting point is preset among the said PCRF as network configuration information.

13. a communication system is characterized in that, comprising:

Selecting arrangement; Be used to obtain charging information collecting point ability information; Compress implementation strategy based on said ability information, head compression charging policy and head and confirm corresponding charging information collecting point, said head compression charging policy is used to indicate before the charging information collecting point collection compression and/or the charge information of compression back data;

The policy distribution device is used to send the charging information collecting point selection strategy of the charging information collecting point that said choice device confirms;

Aaa server, the charge information that the charging information collecting point that is used for confirming according to said choice device is collected charges;

Compression function final controlling element is used for according to said head compression charging policy data message Executive Head processed compressed;

The charging information collecting point is used for according to said head compression charging policy the data message that compresses after preceding and/or the compression being added up.

14. communication system according to claim 13 is characterized in that,

Said policy distribution device is an aaa server, or anchor point SFA, or anchor point DPF.

15. according to claim 13 or 14 described communication systems, it is characterized in that,

Said compression function final controlling element is anchor point DPF and/or BS;

Said charging information collecting point is anchor point DPF, or BS, or Serving DPF, or anchor point DPF and BS.

16. an aaa server is characterized in that, comprising:

The ability information acquiring unit is used to obtain charging information collecting point ability information;

Charging information collecting clicks cell; The ability information, head compression charging policy and the head that are used for obtaining based on the ability information acquiring unit compress implementation strategy and confirm corresponding charging information collecting point, and said head compression charging policy is used to indicate before the charging information collecting point collection compression and/or the charge information of compression back data;

Charging Detail Record unit, the charge information that is used for clicking according to charging information collecting the charging information collecting point collection that cell confirms charges.