CN101945367A - Charging method and device for evolved packet system - Google Patents

Charging method and device for evolved packet system Download PDF

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Publication number
CN101945367A
CN101945367A CN 200910158938 CN200910158938A CN101945367A CN 101945367 A CN101945367 A CN 101945367A CN 200910158938 CN200910158938 CN 200910158938 CN 200910158938 A CN200910158938 A CN 200910158938A CN 101945367 A CN101945367 A CN 101945367A
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China
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charging
information
quality
access network
function entity
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CN 200910158938
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Chinese (zh)
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周晓云
郭文洁
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ZTE Corp
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ZTE Corp
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Priority to CN 200910158938 priority Critical patent/CN101945367A/en
Priority to PCT/CN2010/073249 priority patent/WO2011003307A1/en
Publication of CN101945367A publication Critical patent/CN101945367A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1485—Tariff-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/70—Administration or customization aspects; Counter-checking correct charges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/70—Administration or customization aspects; Counter-checking correct charges
    • H04M15/73—Validating charges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing

Abstract

The invention provides a charging method for an evolved packet system. The charging method comprises the following steps that: an evolved packet system service receives user access, reports support layer charging information and application layer charging information of an accessed service to a charging system, wherein the application layer charging information comprises the service quality information of a data stream in the accessed service; and the charging system charges according to the support layer charging information and the application layer charging information. The invention also provides a charging device for the evolved packet system. The charging device comprises an access module, a support layer charging information report module, an application layer charging information report module and a charging module. The problem of the unavailable correct charging of the charging method which is caused by the inconsistent accuracy of the support layer charging information and the application layer charging information in related technology is solved, so that the application layer charging information and the support layer charging information reach the same QoS data stream level and the correct charging of the accessed service is realized.

Description

The charging method and the device that are used for evolved packet system
Technical field
The present invention relates to the communications field, in particular to a kind of charging method and device that is used for evolved packet system.
Background technology
Fig. 1 shows non-roaming state 3GPP (the 3rd GenerationPartnership Project according to correlation technique, third generation partner program) EPS of network (EvolvedPacket System, evolved packet system) structure chart, EPS is by the Universal Terrestrial Radio Access Network E-UTRAN (Evolved Universal Terrestrial Radio AccessNetwork) of evolution, mobile management unit MME (Mobility Management Entity), gateway S-GW (Serving Gateway), grouped data network gateway P-GW (PacketData Network Gateway), home subscriber server HSS (Home SubscriberServer), 3GPP authentication and authorization charging AAA (Authentication, Authorization andAccounting) server, "Policy and Charging Rules Function PCRF (Policy and ChargingRules Function) entity and other support nodes are formed.Wherein, E-UTRAN links to each other with MME by S1-MME, and MME links to each other with HSS by S6a; S-GW is the accessing gateway equipment that links to each other with E-UTRAN, transmits data between E-UTRAN and P-GW, and is responsible for pending datas such as paging are carried out buffer memory, S-GW links to each other with E-UTRAN by SI-U, link to each other with MME by S11, link to each other with PCRF, link to each other with P-GW by S5 by Gxc; P-GW then is the borde gateway of EPS and Packet Data Network's (Packet DataNetwork abbreviates PDN as), is responsible for the access of PDN, transmits data etc. between EPS and PDN, and P-GW links to each other with PCRF by Gx, and the IP operation that provides by SGi and operator links to each other; PCRF is connected with operator's Internet protocol IP (Internet Protocol) business network interface by Rx interface, obtain business information, and link to each other with gateway device in the 3GPP network by the Gx/Gxa/Gxb/Gxc interface, be responsible for initiating the foundation of IP carrying, guarantee the service quality QoS (Quality of Service) of business datum, and the control of chargeing.EPS also supports UE (User Equipment, subscriber equipment) access of other non-3 GPP system by except that E-UTRAN, wherein, the access of non-3 GPP system realizes by the S2a/b/c interface, and P-GW is as the data anchor point of the access of the access of 3GPP system and non-3 GPP system.In the system architecture of EPS, non-3 GPP system is divided into trusted non-3GPP IP Access Network and trustless non-3GPP IP Access Network.The non-3GPP IP of trusted Access Network can directly be connected with P-GW by the S2a interface; Trustless non-3GPP IP Access Network need pass through ePDG (Evolved Packet DataGateway, the packet data gateway of evolution) and link to each other with P-GW, and the interface between ePDG and P-GW is S2b.
Fig. 2 shows the structure chart of supporting EPC dynamic strategy charging control PCC (Policy andCharging Control), wherein, SPR is signatory document library (SubscriptionProfile Repositorty), strategy and charge execution function PCEF (Policy and chargingenforcement function) reside among the P-GW of EPS system, pass through Gx interface exchange message between PCRF and PCEF.Interface when between P-GW and S-GW is based on PMIPv6 (Proxy Mobile IPv6, proxy mobile IPv 6) during agreement, also there is the function of policy control in S-GW, be called bearing binding and event reporting function BBERF (Bearer Bindingand Event Reporting Function), pass through Gxc interface exchange message between BBERF and the PCRF.Simultaneously, for providing professional application function AF (ApplicationFunction) entity, UE sends the business information that is used to formulate PCC or qos policy to PCRF by Rx interface.
EPS can provide the charge information of bearing bed to charge system, comprise offline charging and online charging, wherein charge system comprises off-line accounting system OFCS (Offline ChargingSystem) and Online Charging System OCS (Online Charging System).For online charging, mutual by P-GW and OCS when UE inserts by 3GPP, carry out credit control.P-GW provides the bearing bed charge information to charge system, identifies with Access Network charging identifier (Access-Network-Charging-Identifier is also referred to as the bearing bed charging identifier).Application server also provides the application layer charge information to charge system simultaneously, and (AF-Charging-Identifier) identifies with the application function charging identifier, and this charging identifier produces and send to relevant application server by the AF entity.AF entity self also can provide the application layer charge information to charge system, identifies with AF-Charging-Identifier equally.The charge information that AF entity or application server produce is the application layer charge information.
A kind of charging method that is used for evolved packet system is provided in the correlation technique, this method is carried out related with the application layer charge information bearing bed charge information that certain business of user capture is produced in order to make charge system, P-GW/PCEF and AF entity send to the other side by the charging identifier that PCRF will produce separately, when P-GW/PCEF carries AF-Charging-Identifier when charge system sends the bearing bed charge information that identifies with Access-Network-Charging-Identifier, and when charge system sends application layer charge information with the AF-Charging-Identifier sign, carry Access-Network-Charging-Identifier when AF entity or application server, then charge system just bearing bed charge information and application layer charge information can be carried out related, thereby realize user's Operational Visit is correctly chargeed.
Between S-GW and P-GW, adopt GTP (General Packet Radio ServiceTunneling Protocol, general packet wireless service tunnel protocol) time, P-GW/PCEF is that each carrying that the PDN of UE connects distributes an Access-Network-Charging-Identifier.The IP traffic that has identical QoS in the UE access service can be tied in the same carrying, wherein QoS comprises QCI (QoS ClassIdentifier, the QoS class letter) and ARP (Allocation and Retention Priority, distribute and maintenance priority), P-GW/PCEF identifies with an Access-Network-Charging-Identifier for the charge information that each carrying produces, P-GW/PCEF also notifies AF entity by PCRF with Access-Network-Charging-Identifier simultaneously, and notifies the AF entity with the incidence relation of Access-Network-Charging-Identifier on the bearing bed and IP traffic.So AF entity or application server can associate IP traffic with corresponding Access-Network-Charging-Identifier, when AF entity or application server when charge system sends the application layer charge information of IP traffic, can carry corresponding Access-Network-Charging-Identifier, and then charge system has realized related to the bearing bed charge information of the IP traffic of identical QoS and application layer charge information.For charge system, can arrive the data flow rank of identical QoS from P-GW/PCEF and the charge information precision that application server reports up.
When adopting the PMIPv6 agreement between S-GW and the P-GW, because the limitation of PMIPv6 agreement causes P-GW/PCEF to connect for the PDN of UE and distributes an Access Network charging identifier, i.e. PDN connection has only an Access-Network-Charging-Identifier.P-GW/PCEF is that the PDN of UE connects the charge information that produces, and identifies with Access-Network-Charging-Identifier.Be to have identical QoS (being the combination of QCI and APR) in this charge information, data flow an AVP is provided (Attribute Value Pair, attribute-value to), carry and have identical QoS the charge information of (QCI and APR combination) data flow, and identify this AVP with the QoS (QCI and ARP make up) that data flow had.Like this, for charge system, the charge information precision that reports up from P-GW/PCEF still can reach the data flow rank with identical QoS; Yet because P-GW/PCEF only offers the AF entity to Access-Network-Charging-Identifier, so the charge information that reports to charge system of AF entity or application server can only reach PDN and connects rank.
In realizing process of the present invention, the inventor finds to be used in the correlation technique charging method of evolved packet system when adopting the PMIPv6 agreement between S-GW and the P-GW, be reported to the bearing bed charge information of charge system to reach the data flow rank of QoS, and the application layer charge information that is reported to charge system only reaches PDN connection rank, the precision that is bearing bed charge information and application layer charge information is inconsistent, thereby causes and can't correctly charge.
Summary of the invention
The present invention aims to provide a kind of charging method and device that is used for evolved packet system, can solve the charging method that is used for evolved packet system in the correlation technique when adopting the PMIPv6 agreement between S-GW and the P-GW, be reported to the bearing bed charge information of charge system to reach the data flow rank of QoS, and the application layer charge information that is reported to charge system only reaches PDN connection rank, the precision that is bearing bed charge information and application layer charge information is inconsistent, thereby causes the problem that can't correctly charge.
In an embodiment of the present invention, provide a kind of charging method that is used for evolved packet system, may further comprise the steps: the business of evolved packet system is accepted user capture; Report the bearing bed charge information of accessed business to charge system; Report the application layer charge information of accessed business to charge system, the application layer charge information comprises the quality of service information of data flow in the accessed business; Charge system is chargeed according to bearing bed charge information and application layer charge information.
Preferably, in above-mentioned charging method, quality of service information comprises the service quality rating sign and distributes and keep priority.
Preferably, in above-mentioned charging method, the business of evolved packet system is accepted user capture and specifically comprised: to be connected the Access Network conversation request message be IP connection Access Network session distribution Access Network charging identifier according to the IP that sets up that receives for strategy and charging execution function entity; Set up IP and connect the Access Network session; Business connects the Access Network session by IP and accepts user capture.
Preferably, in above-mentioned charging method, to be connected the Access Network conversation request message be that IP connection Access Network session distribution Access Network charging identifier specifically comprises according to the IP that sets up that receives for strategy and charging execution function entity: bearing binding and event reporting function entity and "Policy and Charging Rules Function entity are set up gateway control session; The "Policy and Charging Rules Function entity is formulated default policy charging control rule and default quality of service rule; The "Policy and Charging Rules Function entity is given bearing binding and event reporting function entity with the default quality of service rule downloading; Bearing binding and event reporting function entity are installed the default quality of service rule; Bearing binding is set up IP with the event reporting function entity to tactful and charging execution function entity transmission and is connected the Access Network conversation request message; Strategy is that IP is connected Access Network session distribution Access Network charging identifier with charging execution function entity; Strategy is set up IP with charging execution function entity to the transmission of "Policy and Charging Rules Function entity and is connected Access Network session Indication message, sets up IP connection Access Network session Indication message and comprises the Access Network charging identifier.
Preferably, in above-mentioned charging method, set up the session of IP connection Access Network and specifically comprise: the "Policy and Charging Rules Function entity carries out strategic decision-making according to the default policy charging control rule, obtains first control rule of policy billing; The "Policy and Charging Rules Function entity is set up IP to tactful and charging execution function entity transmission and is connected Access Network session acknowledge message, sets up IP-CAN session acknowledge message and comprises first control rule of policy billing; Strategy and charging execution function entity are installed first control rule of policy billing; Strategy and charging execution function entity and charge system carry out setting up chargeable session alternately; Strategy and charging execution function entity send to bearing binding and event reporting function entity and set up IP and is connected Access Network session acknowledge message, and IP connection Access Network session foundation is finished.
Preferably, in above-mentioned charging method, business is accepted user capture by the session of IP connection Access Network and specifically comprised: the user is mutual by IP connection Access Network session and Application Function; Quality of service information after the negotiation of Application Function after the transmission of "Policy and Charging Rules Function entity is consulted with the user, and the update notification of subscribing to the Access Network charging identifier; The "Policy and Charging Rules Function entity is preserved and is consulted the back quality of service information, and returns acknowledge message to Application Function; The "Policy and Charging Rules Function entity is formulated second control rule of policy billing and second rules for quality of service according to consulting the back quality of service information, and second rules for quality of service comprises the service quality rating sign and distributes and keep priority.
Preferably, in above-mentioned charging method, report the bearing bed charge information of accessed business specifically to comprise to charge system: the "Policy and Charging Rules Function entity is handed down to strategy and charging execution function entity with second control rule of policy billing, and second rules for quality of service is handed down to bearing binding and event reporting function entity; Strategy and charging execution function entity are installed second control rule of policy billing, and bearing binding and event reporting function entity are installed second rules for quality of service; Strategy and charging execution function entity report the bearing bed charge information to charge system, and the bearing bed charge information comprises Access Network charging identifier and quality of service information, and quality of service information comprises the service quality rating sign and distributes and keep priority.
Preferably, in above-mentioned charging method, report the application layer charge information of accessed business specifically to comprise to charge system: the "Policy and Charging Rules Function entity provides Access Network charging identifier and quality of service information to Application Function, and quality of service information comprises the service quality rating sign and distributes and keep priority; Application Function returns acknowledge message to the "Policy and Charging Rules Function entity; Application Function provides Access Network charging identifier and quality of service information to application server; Application server reports the application layer charge information to charge system, and the application layer charge information comprises Access Network charging identifier and quality of service information.
Preferably, in above-mentioned charging method, report the application layer charge information of accessed business specifically to comprise to charge system: the "Policy and Charging Rules Function entity provides Access Network charging identifier and quality of service information to Application Function, and quality of service information comprises the service quality rating sign and distributes and keep priority; Application Function returns acknowledge message to the "Policy and Charging Rules Function entity; Application Function reports the application layer charge information to charge system, and the application layer charge information comprises Access Network charging identifier and quality of service information.
On the other hand, in an embodiment of the present invention, also provide a kind of message accounting that is used for evolved packet system, having comprised: access modules is used to accept the Operational Visit of user to evolved packet system; Bearing bed charge information reporting module is used to report the bearing bed charge information of accessed business; Application layer charge information reporting module is used to report the application layer charge information of accessed business, and the application layer charge information comprises the quality of service information of data flow in the accessed business; Accounting module is used for chargeing according to bearing bed charge information and application layer charge information.
Preferably, in above-mentioned message accounting, quality of service information comprises the service quality rating sign and distributes and keep priority.
On the other hand, in an embodiment of the present invention, also provide a kind of charge information correlating method that is used for evolved packet system, may further comprise the steps: policy charging rule functional entity is to the quality of service information of Application Function reported data stream and data flow; Application Function adopts quality of service information to carry out the charge information association.
Preferably, in above-mentioned charge information correlating method, quality of service information comprises the service quality rating sign and distributes and keep priority.
Preferably, in above-mentioned charge information correlating method, Application Function comprises quality of service information and is used for charge associated in sending to the charge information of charge system.
Preferably, in above-mentioned charge information correlating method, Application Function sends to application server with the quality of service information of data flow and data flow, and application server comprises quality of service information and is used for charge associated in sending to the charge information of charge system.
Because the application layer charge information that reports charge system is except comprising the Access-Network-Charging-Identifier of accessed business, the QoS information that also comprises data flow in the accessed business, and then the application layer charge information that makes charge system know has also reached the data flow rank of QoS, be that the bearing bed charge information is consistent with the precision of application layer charge information, realized correct charging to accessed business, so overcome the charging method that is used for evolved packet system in the correlation technique when adopting the PMIPv6 agreement between S-GW and the P-GW, be reported to the bearing bed charge information of charge system to reach the data flow rank of identical QoS, and the application layer charge information that is reported to charge system only reaches PDN connection rank, the precision that is bearing bed charge information and application layer charge information is inconsistent, thereby causes the problem that can't correctly charge.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the EPS structure chart according to the non-roaming state 3GPP network of correlation technique;
Fig. 2 shows the structure chart of supporting EPC dynamic strategy charging control PCC;
Fig. 3 shows the flow chart according to the charging method of first embodiment of the invention;
Fig. 4 shows the flow chart according to the charging method of second embodiment of the invention;
Fig. 5 shows the flow chart according to the charging method of third embodiment of the invention;
Fig. 6 shows the flow chart according to the message accounting of fourth embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 3 shows the flow chart according to the charging method of first embodiment of the invention, and this method may further comprise the steps:
Step S101, the EPS business is accepted user capture;
Step S102 reports the bearing bed charge information of accessed business to charge system;
Step S103 reports the application layer charge information of accessed business to charge system, and the application layer charge information comprises the QoS information of the data flow of accessed business;
Step S104, charge system is chargeed according to bearing bed charge information and application layer charge information.
EPS business in the present embodiment is at first accepted user capture, report the bearing bed charge information and the application layer charge information of accessed business then to charge system, the bearing bed charge information comprises the Access-Network-Charging-Identifier and the QoS information of data flow in the accessed business, in the application layer charge information except the Access-Network-Charging-Identifier that comprises data flow, the QoS information that also comprises data flow, last charge system is chargeed according to Access-Network-Charging-Identifier in bearing bed charge information and the application layer charge information and QoS information.Because the application layer charge information that reports charge system is except comprising the Access-Network-Charging-Identifier of accessed business, the QoS information that also comprises data flow in the accessed business, and then the application layer charge information that makes charge system know has also reached the data flow rank of QoS, be that the bearing bed charge information is consistent with the precision of application layer charge information, realized correct charging to accessed business, so overcome the charging method that is used for evolved packet system in the correlation technique when adopting the PMIPv6 agreement between S-GW and the P-GW, be reported to the bearing bed charge information of charge system to reach the data flow rank of identical QoS, and the application layer charge information that is reported to charge system only reaches PDN connection rank, the precision that is bearing bed charge information and application layer charge information is inconsistent, thereby causes the problem that can't correctly charge.
Preferably, in above-mentioned charging method, QoS information comprises QCI and ARP.
QoS information in the present embodiment is the combination of QCI and ARP, and wherein QCI is the QoS class letter, and ARP is for distributing and keep priority, thus with the combination of QCI and ARP as QoS information, can clearly illustrate that the charge information of the data flow of accessed business.
Preferably, in above-mentioned charging method, step S101 specifically comprises: the PCEF entity distributes Access-Network-Charging-Identifier according to the IP-CAN conversation request message of setting up that receives for the IP-CAN session; Set up the IP-CAN session; Business is accepted user capture by the IP-CAN session.
At first distribute Access-Network-Charging-Identifier for the IP-CAN session in the present embodiment by the PCEF entity, it can be used to represent the bearing bed charging case of accessed business, set up the IP-CAN session then, last business is accepted user capture by the IP-CAN session.Present embodiment has generated Access-Network-Charging-Identifier, to inform the charging case of the relevant bearing bed of charge system, has also set up the IP-CAN session, for the user provides the foundation to the visit of business.
Preferably, in above-mentioned charging method, the PCEF entity among the step S101 specifically comprises for the IP-CAN session distributes Access-Network-Charging-Identifier according to the IP-CAN conversation request message of setting up that receives: BBERF entity and PCRF entity are set up gateway control session; The PCRF entity is formulated acquiescence PCC rule and acquiescence QoS rule; The BBERF entity sends to the PCEF entity and sets up the IP-CAN conversation request message; The PCRF entity will be given tacit consent to the QoS rule downloading and give the BBERF entity; The BBERF entity is installed acquiescence QoS rule; The PCEF entity distributes Access-Network-Charging-Identifier for the IP-CAN session; The PCEF entity sends to the PCRF entity and sets up IP-CAN session Indication message, sets up IP-CAN session Indication message and comprises Access-Network-Charging-Identifier.
BBERF in the present embodiment resides among the S-GW, PCEF resides among the P-GW, realize information interaction between BBERF entity and the PCEF entity so need at first set up gateway control session, in setting up process, PCRF is according to user's CAMEL-Subscription-Information, formulate the acquiescence PCC rule and the acquiescence QoS rule of carrying, and will give tacit consent to the QoS rule downloading and give BBERF, BBERF installs, the gateway of the resident BBERF of having (as S-GW) is set up the IP-CAN conversation request message to gateway (as the P-GW) transmission of the resident PCEF of having, this message is the agent binding update request message during realization, the resident IP-CAN session distribution Access-Network-Charging-Identifier that the gateway of PCEF is arranged for request foundation.PCEF sends to PCRF and sets up IP-CAN session Indication message, carries this Access-Network-Charging-Identifier in the message.Present embodiment has realized that the PCEF entity distributes Access-Network-Charging-Identifier for the IP-CAN session.
Preferably, in above-mentioned charging method, the IP-CAN session of setting up among the step S101 specifically comprises: the PCRF entity carries out strategic decision-making according to acquiescence PCC rule, obtains a PCC rule; The PCRF entity sends to the PCEF entity and sets up IP-CAN session acknowledge message, sets up IP-CAN session acknowledge message and comprises a PCC rule; The PCEF entity is installed a PCC rule; PCEF entity and charge system carry out setting up chargeable session alternately; The PCEF entity sends to the BBERF entity and sets up IP-CAN session acknowledge message, and the IP-CAN session is set up and finished.
Present embodiment at first carries out strategic decision-making by PCRF, the acquiescence PCC rule of formulating before may revising, the PCRF entity to the PCEF entity issue include a PCC rule set up IP-CAN session acknowledge message, PCEF installs the PCC rule, PCEF and OCS carry out alternately, set up online chargeable session, the gateway of the resident PCEF of having (as P-GW) returns to the gateway (as S-GW) of the resident BBERF of having and sets up IP-CAN session acknowledge message, and this message is the agent binding update acknowledge message when realizing.Present embodiment has been set up the IP-CAN session, makes the user can pass through IP-CAN conversation request business.
Preferably, in above-mentioned charging method, the business among the step S101 is accepted user capture by the IP-CAN session and specifically comprised: the user is by IP-CAN session and AF entity interaction; QoS information after the negotiation of AF entity after the transmission of PCRF entity is consulted with the user, and the update notification of subscribing to Access-Network-Charging-Identifier; The PCRF entity is preserved and is consulted back QoS information, and returns acknowledge message to the AF entity; The PCRF entity is formulated the 2nd PCC rule and the 2nd QoS rule according to consulting back QoS information, and the 2nd QoS rule comprises QCI and ARP.
Present embodiment at first carries out Operational Visit by the user, with the AF entity carry out application layer mutual after, QoS information offers PCRF after the negotiation after the AF entity will be consulted with the user, the update notification of while AF entity subscribes Access-Network-Charging-Identifier, PCRF preserves business information such as consulting back QoS information, and return acknowledge message, PCRF is according to user's CAMEL-Subscription-Information, network strategy and business information are carried out strategic decision-making, formulate PCC rule and QoS rule, PCRF and BBERF carry out alternately, give BBERF with the QoS rule downloading, and BBERF installs.Present embodiment has been realized professional accepting user capture by the IP-CAN session.
Preferably, in above-mentioned charging method, step S102 specifically comprises: the PCRF entity is given the PCEF entity with the 2nd PCC rule downloading, gives PCEF entity and BBERF entity with the 2nd QoS rule downloading; The PCEF entity is installed the 2nd PCC rule, and the BBERF entity is installed the 2nd QoS rule; The PCEF entity reports the bearing bed charge information to charge system, and the bearing bed charge information comprises Access-Network-Charging-Identifier and QoS information, and QoS information comprises QCI and ARP.
Present embodiment is at first given PCEF entity and BBERF entity by the PCRF entity with the 2nd QoS rule downloading, the BBERF entity is installed the 2nd QoS rule, the PCEF entity reports the bearing bed charge information to charge system, comprise Access-Network-Charging-Identifier and QoS information, QoS information comprises QCI and ARP.The PCEF entity is the PDN connection generation Access-Network-Charging-Identifier of UE in the present embodiment, wherein provide an AVP for data flow with identical QoS (being the combination of QCI and APR), carry charge information, and identify this AVP with the QoS that data flow had with identical QoS data flow.Like this, for charge system, the charge information precision that reports up from P-GW/PCEF can reach the data flow rank of QoS.
Preferably, in above-mentioned charging method, step S103 specifically comprises: the PCRF entity provides Access-Network-Charging-Identifier and QoS information to the AF entity, and QoS information comprises QCI and distributes and keep priority; The AF entity returns acknowledge message to the PCRF entity; The AF entity provides Access-Network-Charging-Identifier and QoS information to application server; Application server reports the application layer charge information to charge system, and the application layer charge information comprises Access-Network-Charging-Identifier and QoS information.
Present embodiment at first sends policy charging rule by PCRF to PCEF and gives information, after the PCEF installation rule, return policy charging rule acknowledge message is provided, since the AF entity subscribes update notification of Access-Network-Charging-Identifier, PCRF provides this information to the AF entity, corresponding Access Network charging identifier and the PCRF of each IP stream that information is accurate to the AF entity to be provided flows the QoS information (combination of QCI and ARP) of authorizing for this IP, the AF entity returns acknowledge message to PCRF, the AF entity offers application server with Access-Network-Charging-Identifier message and QoS information (combination of QCI and ARP) again, report the application layer charge information by application server to charge system at last, the application layer charge information comprises Access-Network-Charging-Identifier message and QoS information (combination of QCI and ARP).Because the application layer charge information that reports charge system is except comprising the Access-Network-Charging-Identifier of accessed business, the QoS information that also comprises data flow in the accessed business, and then the application layer charge information that makes charge system know also reached the data flow rank of QoS, promptly realized the unification with the precision of bearing bed charge information.
Preferably, in above-mentioned charging method, step S103 specifically comprises: the PCRF entity provides Access-Network-Charging-Identifier and QoS information to the AF entity, and QoS information comprises QCI and distributes and keep priority; The AF entity returns acknowledge message to the PCRF entity; The AF entity reports the application layer charge information to charge system, and the application layer charge information comprises Access-Network-Charging-Identifier and QoS information.
Present embodiment at first sends policy charging rule by PCRF to PCEF and gives information, after the PCEF installation rule, return policy charging rule acknowledge message is provided, since the AF entity subscribes update notification of Access-Network-Charging-Identifier, PCRF provides this information to the AF entity, corresponding Access Network charging identifier and the PCRF of each IP stream that information is accurate to the AF entity to be provided flows the QoS information (combination of QCI and ARP) of authorizing for this IP, the AF entity returns acknowledge message to PCRF, and the AF entity reports as the application layer charge information Access-Network-Charging-Identifier message and QoS information (combination of QCI and ARP) to charge system.Because the application layer charge information that reports charge system is except comprising the Access-Network-Charging-Identifier of accessed business, the QoS information that also comprises data flow in the accessed business, and then the application layer charge information that makes charge system know also reached the data flow rank of QoS, promptly realized the unification with the precision of bearing bed charge information.
Fig. 4 shows the flow chart according to the charging method of second embodiment of the invention, this method comprises and has realized that UE sets up PDN and connects, the AF entity provides business information, Access Network charging identifier and QoS information that PCRF is related with it with each IP traffic that comprises in the business information report the AF entity, specifically may further comprise the steps:
Step 401, after the BBERF entity is received and is set up the IP-CAN conversation request message, set up gateway control session with the PCRF entity interaction, in this process, the PCRF entity is according to user's CAMEL-Subscription-Information, formulate the PCC rule and the QoS rule of default bearing, and give the BBERF entity with the QoS rule downloading, the BBERF entity is installed;
Step 402, the gateway of the resident BBERF of having (as S-GW) is set up the IP-CAN conversation request message to gateway (as the P-GW) transmission of the resident PCEF of having, and this message is the agent binding update request message during realization;
Step 403, the resident IP-CAN session distribution Access Network charging identifier that the gateway of PCEF is arranged for request foundation, the PCEF entity sends to the PCRF entity and sets up IP-CAN session Indication message, carries the Access Network charging identifier in the message;
Step 404, the PCRF entity carries out strategic decision-making, the PCC rule of the default bearing of formulating before may revising;
Step 405, PCRF entity are returned to the PCEF entity and are set up IP-CAN session acknowledge message, issue the PCC rule, and the PCEF entity is installed the PCC rule;
Step 406, PCEF entity and OCS carry out setting up online chargeable session alternately;
Step 407, the gateway of the resident PCEF of having (as P-GW) returns to the gateway (as S-GW) of the resident BBERF of having and sets up IP-CAN session acknowledge message, and this message is the agent binding update acknowledge message when realizing, so far, the IP-CAN session is set up and to be finished, and the user can requested service;
Step 408, the user carries out Operational Visit, with the AF entity carry out application layer mutual after, QoS information after the AF entity will be consulted with the user offers the PCRF entity, AF entity subscribes Access-Network-Charging-Identifier information is notified simultaneously, and in the present embodiment, the business that the AF entity provides comprises two IP traffics, here identify with IP flow1 and IPflow2, each IP traffic all has the QoS of its request;
Step 409, the PCRF entity is preserved business information, returns acknowledge message;
Step 410, the PCRF entity is according to user's CAMEL-Subscription-Information, network strategy and business information are carried out strategic decision-making, formulate PCC rule and QoS rule, in the present embodiment, PCRF represents with PCC Rule1 that for the PCC rule that IP flow1 formulates QCI in the rule and ARP represent with QCI1 and ARP1, for the PCC rule that IP flow2 formulates represents that with PCC Rule2 QCI in the rule and ARP represent with QCI2 and ARP2;
Step 411, PCRF entity and BBERF entity are carried out alternately, give the BBERF entity with the QoS rule downloading, and the BBERF entity is installed;
Step 412, the PCRF entity sends policy charging rule to the PCEF entity and gives information, and issues PCC Rule1 and PCC Rule2;
Step 413 after the PCEF entity installation rule, is returned policy charging rule acknowledge message is provided;
Step 414, since the AF entity subscribes Access-Network-Charging-Identifier notification of information, the PCRF entity provides this information to the AF entity, corresponding Access Network charging identifier and the PCRF entity of each IP stream that information is accurate to the AF entity to be provided is the QoS information (QCI and ARP) of this IP traffic mandate, in the present embodiment, the information of IP flow1 correspondence comprises Access Network charging identifier, QCI1 and ARP1, and the information of IP flow2 correspondence comprises Access Network charging identifier, QCI2 and ARP2;
Step 415, the AF entity returns acknowledge message to the PCRF entity.
So far, the AF entity has obtained the corresponding charge information of each IP stream, comprises Access Network charging identifier, QCI, ARP.The AF entity sends to other application servers with Access Network charging identifier, QCI, ARP, and the application layer charge information that application server reports to OCS is to carry Access-Network-Charging-Identifier, QCI, ARP so that OCS carries out related with the bearing bed charge information.Certainly the AF entity also can report charge information to OCS simultaneously, comprises Access-Network-Charging-Identifier, QCI, ARP in the charge information.In a word, from AF entity angle, it adopts the Access Network charging identifier, QCI, the ARP that obtain to be used for the charge information association.
In the present embodiment, if PCRF authorizes (QCI and ARP) identically (to suppose to use QCIa to the QoS of IP flow1 and IP flow2, ARPa represents), the PCRF entity comprises Access-Network-Charging-Identifier, QCIa and ARPa in the information that reports IP flow1 and IP flow2 correspondence to the AF entity so.
Fig. 5 shows the flow chart according to the charging method of third embodiment of the invention, present embodiment is described is after user among second embodiment sets up IP-CAN session access business, because the variation of the business information that network strategy or AF entity provide causes the PCRF entity need revise the flow process of application layer charge information, specifically may further comprise the steps:
Step 501, because the business information that network strategy or AF entity provide changes, the PCRF entity carries out strategic decision-making, formulates PCC rule and QoS rule, and in the present embodiment, the QoS that the PCRF entity has been revised IP flow1 authorizes, and ARP1 is revised as ARP1 ';
Step 502, PCRF entity and BBERF entity carry out issuing amended QoS rule alternately;
Step 503, the PCRF entity gives information to PCEF entity transmission strategy and charging regulation, carries amended PCC rule P CC Rule1 ' in the message;
Step 504, PCEF entity update rule, and return acknowledge message;
Step 505, the PCRF entity reports new Access-Network-Charging-Identifier information to the AF entity, comprises the Access Network charging identifier and the new QoS information of authorizing of PCRF entity of IP flow1 correspondence, QCI1 and ARP1 ';
Step 506 is returned acknowledge message after the AF entity preservation information.
The PCRF entity can only be revised QCI or revise QCI and ARP simultaneously.The PCRF entity also can report corresponding modification the AF entity.
The AF entity has obtained IP fiow1 and has revised the corresponding application layer charging identifier information in back, comprises Access Network charging identifier, QCI1, ARP1 '.The AF entity will send to application server to information, and it is to carry Access Network charging identifier, QCI1, ARP1 ' so that OCS carries out related with the bearing bed charge information that application server reports charge information to OCS.Certainly the AF entity also can report charge information to OCS simultaneously, comprises Access-Network-Charging-Identifier, QCI1, ARP1 ' in the charge information.In a word, from AF entity angle, the AF entity adopts the Access Network charging identifier, QCI, the ARP that obtain to be used for the charge information association.
Fig. 6 shows the flow chart according to the message accounting of fourth embodiment of the invention, and this device comprises:
Access modules 10 is used to accept the Operational Visit of user to evolved packet system;
Bearing bed charge information reporting module 20 is used to report the bearing bed charge information of accessed business;
Application layer charge information reporting module 30 is used to report the application layer charge information of accessed business, and the application layer charge information comprises the QoS information of data flow;
Accounting module 40 is used for chargeing according to bearing bed charge information and application layer charge information.
Message accounting in the present embodiment at first adopts the business of 10 pairs of evolved packet systems of access modules to conduct interviews, adopt bearing bed charge information reporting module 20 to report the bearing bed charge information of accessed business to charge system then, adopt application layer charge information reporting module 30 to report the application layer charge information of accessed business to charge system, the bearing bed charge information comprises Access-Network-Charging-Identifier and QoS information, in the application layer charge information except comprising the Access-Network-Charging-Identifier of data flow, the QoS information that also comprises data flow adopts accounting module 40 to charge according to Access-Network-Charging-Identifier in bearing bed charge information and the application layer charge information and QoS information at last.Because the application layer charge information that reports charge system is except comprising the Access-Network-Charging-Identifier of accessed business, the QoS information that also comprises data flow in the accessed business, and then the application layer charge information that makes charge system know has also reached the data flow rank of QoS, be that the bearing bed charge information is consistent with the precision of application layer charge information, realized correct charging to accessed business, so overcome the message accounting that is used for evolved packet system in the correlation technique when adopting the PMIPv6 agreement between S-GW and the P-GW, be reported to the bearing bed charge information of charge system to reach the data flow rank of QoS, and the application layer charge information that is reported to charge system only reaches PDN connection rank, the precision that is bearing bed charge information and application layer charge information is inconsistent, thereby causes the problem that can't correctly charge.
Preferably, in above-mentioned message accounting, QoS information comprises QCI and ARP.
QoS information in the present embodiment is the combination of QCI and ARP, and wherein QCI is the QoS class letter, and ARP is for distributing and keep priority, thus with the combination of QCI and ARP as QoS information, can clearly illustrate that the charge information of the data flow of accessed business.
On the other hand, in an embodiment of the present invention, also provide the charge information correlating method of a kind of EPS of being used for, may further comprise the steps:
The PCRF entity is to the QoS information of AF entity reported data stream and data flow;
The AF entity adopts QoS information to carry out the charge information association.
At first by the QoS information of PCRF entity, and charge in the present embodiment according to QoS information to AF entity reported data stream and data flow.Because the application layer charge information that reports charge system comprises the QoS information of data flow, so the application layer charge information that makes charge system know has reached the data flow rank of QoS, and then realized correct charging, so overcome the charging method that is used for EPS in the correlation technique when adopting the PMIPv6 agreement between S-GW and the P-GW, only report Access-Network-Charging-Identifier to the AF entity, connect rank so only can be accurate to PDN, thereby cause the problem that correctly to charge the charging of application layer.
Preferably, in above-mentioned charge information correlating method, QoS information comprises QCI and ARP.
QoS information in the present embodiment is the combination of QCI and ARP, and wherein QCI is the QoS class letter, and ARP is for distributing and keep priority, thus with the combination of QCI and ARP as QoS information, can clearly illustrate that the charge information of the data flow of accessed business.
Preferably, in above-mentioned charge information correlating method, the AF entity comprises QoS information and is used for charge associated in sending to the charge information of charge system.
Directly send the application layer charge information by the AF entity in the present embodiment, wherein include and be used for charge associated QoS information to charge system.Comprised QoS information because send to the application layer charge information of charge system, and then the application layer charge information that makes charge system know also reaches the data flow rank of QoS, promptly realized related with the bearing bed charge information.
Preferably, in above-mentioned charge information correlating method, the AF entity sends to application server with the QoS information of data flow and data flow, and application server comprises QoS information and is used for charge associated in sending to the charge information of charge system.
Send the QoS information of data flow and data flow in the present embodiment by the AF entity earlier to application server, send the application layer charge information by application server to charge system again, wherein include and be used for charge associated QoS information.Comprised QoS information because send to the application layer charge information of charge system, and then the application layer charge information that makes charge system know also reaches the data flow rank of QoS, promptly realized related with the bearing bed charge information.
From above description, as can be seen, the application layer charge information that the above embodiments of the present invention make charge system know has also reached the data flow rank of QoS, and promptly the bearing bed charge information is consistent with the precision of application layer charge information, has realized the correct charging to accessed business.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (15)

1. a charging method that is used for evolved packet system is characterized in that, may further comprise the steps:
The business of described evolved packet system is accepted user capture;
Report the bearing bed charge information of accessed business to charge system;
Report the application layer charge information of described accessed business to described charge system,
Described application layer charge information comprises the quality of service information of data flow in the described accessed business;
Described charge system is chargeed according to described bearing bed charge information and described application layer charge information.
2. charging method according to claim 1 is characterized in that, described quality of service information comprises the service quality rating sign and distributes and keep priority.
3. charging method according to claim 2 is characterized in that, the business of described evolved packet system is accepted user capture and specifically comprised:
To be connected the Access Network conversation request message be that the session of described IP connection Access Network distributes described Access Network charging identifier according to the IP that sets up that receives for strategy and charging execution function entity;
Set up described IP and connect the Access Network session;
Described business connects the Access Network session by described IP and accepts described user capture.
4. charging method according to claim 3 is characterized in that, to be connected the Access Network conversation request message be that the session of described IP connection Access Network distributes described Access Network charging identifier specifically to comprise according to the IP that sets up that receives for strategy and charging execution function entity:
Described bearing binding and event reporting function entity and "Policy and Charging Rules Function entity are set up gateway control session;
Described "Policy and Charging Rules Function entity is formulated default policy charging control rule and default quality of service rule;
Described "Policy and Charging Rules Function entity is given described bearing binding and event reporting function entity with described default quality of service rule downloading;
Described bearing binding and event reporting function entity are installed described default quality of service rule;
Described bearing binding sends the described IP of foundation with the event reporting function entity to strategy and charging execution function entity and is connected the Access Network conversation request message;
Described strategy and charging execution function entity are that described IP is connected the Access Network session and distributes described Access Network charging identifier;
Described strategy is set up IP with charging execution function entity to the transmission of "Policy and Charging Rules Function entity and is connected Access Network session Indication message, and the described IP of foundation connects Access Network session Indication message and comprises described Access Network charging identifier.
5. charging method according to claim 4 is characterized in that, sets up the session of described IP connection Access Network and specifically comprises:
Described "Policy and Charging Rules Function entity carries out strategic decision-making, obtains first control rule of policy billing;
Described "Policy and Charging Rules Function entity sends to described strategy and charging execution function entity and sets up IP and is connected Access Network session acknowledge message, and the described IP of foundation connection Access Network session acknowledge message comprises described first control rule of policy billing;
Described strategy and charging execution function entity are installed described first control rule of policy billing;
Described strategy and charging execution function entity and described charge system carry out setting up chargeable session alternately;
Described strategy is connected Access Network session acknowledge message with charging execution function entity to described bearing binding and the described IP of foundation of event reporting function entity transmission, and described IP connects Access Network session foundation to be finished.
6. charging method according to claim 5 is characterized in that, described business is accepted described user capture by the session of described IP connection Access Network and specifically comprised:
Described user is mutual by described IP connection Access Network session and Application Function;
Quality of service information after the negotiation of Application Function after described "Policy and Charging Rules Function entity transmission is consulted with described user, and the update notification of subscribing to described Access Network charging identifier;
Described "Policy and Charging Rules Function entity is preserved described negotiation back quality of service information, and returns acknowledge message to described Application Function;
Described "Policy and Charging Rules Function entity is formulated second control rule of policy billing and second rules for quality of service according to described negotiation back quality of service information, and described second rules for quality of service comprises described service quality rating sign and described distribution and maintenance priority.
7. charging method according to claim 6 is characterized in that, reports the bearing bed charge information of accessed business specifically to comprise to charge system:
Described "Policy and Charging Rules Function entity is handed down to described strategy and charging execution function entity with described second control rule of policy billing, and second rules for quality of service is handed down to described bearing binding and event reporting function entity;
Described strategy and charging execution function entity are installed described second control rule of policy billing, and described bearing binding and event reporting function entity are installed described second rules for quality of service;
Described strategy and charging execution function entity report described bearing bed charge information to charge system, described bearing bed charge information comprises described Access Network charging identifier and described quality of service information, and described quality of service information comprises described service quality rating sign and described distribution and maintenance priority.
8. charging method according to claim 6 is characterized in that, reports the application layer charge information of described accessed business specifically to comprise to described charge system:
Described "Policy and Charging Rules Function entity provides described Access Network charging identifier and described quality of service information to described Application Function, and described quality of service information comprises described service quality rating sign and described distribution and maintenance priority;
Described Application Function returns acknowledge message to described "Policy and Charging Rules Function entity;
Described Application Function provides described Access Network charging identifier and described quality of service information to application server;
Described application server reports described application layer charge information to described charge system, and described application layer charge information comprises described Access Network charging identifier and described quality of service information.
9. charging method according to claim 6 is characterized in that, reports the application layer charge information of described accessed business specifically to comprise to described charge system:
Described "Policy and Charging Rules Function entity provides described Access Network charging identifier and described quality of service information to described Application Function, and described quality of service information comprises described service quality rating sign and described distribution and maintenance priority;
Described Application Function returns acknowledge message to described "Policy and Charging Rules Function entity;
Described Application Function reports described application layer charge information to described charge system, and described application layer charge information comprises described Access Network charging identifier and described quality of service information.
10. a message accounting that is used for evolved packet system is characterized in that, comprising:
Access modules is used to accept the Operational Visit of user to described evolved packet system;
Bearing bed charge information reporting module is used to report the bearing bed charge information of accessed business;
Application layer charge information reporting module is used to report the application layer charge information of described accessed business, and described application layer charge information comprises the quality of service information of data flow in the described accessed business;
Accounting module is used for chargeing according to described bearing bed charge information and described application layer charge information.
11. message accounting according to claim 10 is characterized in that, described quality of service information comprises the service quality rating sign and distributes and keep priority.
12. a charge information correlating method that is used for evolved packet system is characterized in that, may further comprise the steps:
Policy charging rule functional entity is to the quality of service information of Application Function reported data stream and described data flow;
Described Application Function adopts described quality of service information to carry out the charge information association.
13. charge information correlating method according to claim 12 is characterized in that, described quality of service information comprises the service quality rating sign and distributes and keep priority.
14., it is characterized in that described Application Function comprises described quality of service information and is used for charge associated according to claim 12 or 13 described charge information correlating methods in sending to the charge information of charge system.
15. according to claim 12 or 13 described charge information correlating methods, it is characterized in that, described Application Function sends to application server with the quality of service information of data flow and described data flow, and described application server comprises described quality of service information and is used for charge associated in sending to the charge information of charge system.
CN 200910158938 2009-07-08 2009-07-08 Charging method and device for evolved packet system Pending CN101945367A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2012171428A1 (en) * 2011-06-16 2012-12-20 中兴通讯股份有限公司 Charging method and system for evolved packet core supporting non-3gpp accessing
CN103634125A (en) * 2012-08-28 2014-03-12 镇江睿泰信息科技有限公司 Dynamic process combination-based network service billing method
CN107454579A (en) * 2016-05-30 2017-12-08 普天信息技术有限公司 A kind of LTE network supports S1 interfaces caching accelerated method, system and the device of charging
CN113691949A (en) * 2014-10-28 2021-11-23 康维达无线有限责任公司 Method and apparatus for service layer charging association with an underlying network

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CN100558039C (en) * 2006-01-25 2009-11-04 华为技术有限公司 A kind of charge associated method
CN101163022B (en) * 2006-10-13 2012-03-07 华为技术有限公司 Point-to-point communication charging method and communication system and charging device
CN101141821B (en) * 2007-09-30 2011-08-24 中兴通讯股份有限公司 Strategy and charge execution function node locating method of wireless communication network

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012171428A1 (en) * 2011-06-16 2012-12-20 中兴通讯股份有限公司 Charging method and system for evolved packet core supporting non-3gpp accessing
CN103634125A (en) * 2012-08-28 2014-03-12 镇江睿泰信息科技有限公司 Dynamic process combination-based network service billing method
CN113691949A (en) * 2014-10-28 2021-11-23 康维达无线有限责任公司 Method and apparatus for service layer charging association with an underlying network
CN107454579A (en) * 2016-05-30 2017-12-08 普天信息技术有限公司 A kind of LTE network supports S1 interfaces caching accelerated method, system and the device of charging
CN107454579B (en) * 2016-05-30 2020-02-25 普天信息技术有限公司 Charging-supported S1 interface cache acceleration method, system and device for LTE network

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