CN107800545B - Ticket computing system and method based on edge computing - Google Patents
Ticket computing system and method based on edge computing Download PDFInfo
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- CN107800545B CN107800545B CN201710897096.XA CN201710897096A CN107800545B CN 107800545 B CN107800545 B CN 107800545B CN 201710897096 A CN201710897096 A CN 201710897096A CN 107800545 B CN107800545 B CN 107800545B
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- 238000004364 calculation method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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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
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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
- H04L12/1403—Architecture for metering, charging or billing
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- 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
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- 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
- H04M15/31—Distributed metering or calculation of charges
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- 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
- H04M15/41—Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
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- 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
- H04M15/48—Secure or trusted billing, e.g. trusted elements or encryption
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- 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
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- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Meter Arrangements (AREA)
Abstract
The invention discloses a ticket calculation system and method based on edge calculation, which comprises a network node MME, a ticket generating module and a ticket generating module, wherein the network node MME generates a ticket; the edge computing gateway server EC-GW is configured with TPM application; the charging gateway CG is connected with the edge computing gateway server EC-GW; the core side service network element S-GW is connected with the edge computing gateway server EC-GW; and the home subscriber server HSS is connected with and receives the registration information from the edge computing gateway server EC-GW. Compared with the prior art, the ticket computing system and method based on edge computing can guarantee the security of the charging data of the user call, simultaneously improve the reliability of the whole charging server system, and have the advantages of strong practicability, wide application range and easy popularization.
Description
Technical Field
The invention relates to the technical field of information communication, in particular to a ticket computing system and a method based on edge computing.
Background
With the proposal and planning of the definition of the 5G network, the information service environment and the cloud computing capability are provided and deployed at the position side of the mobile user, the calling process is changed, and the related business application, service and content in the calling process of the user are deployed at the edge side of the distributed communication network, so that the low-delay and high-bandwidth business requirements in the 5G network are better supported.
Based on this, the original charging module is deployed at the core side and connected with all service network elements for message interaction, the communication cost is high, and the change of the call flow makes the operator unable to charge the communication service, so a new off-line ticket calculation method is urgently needed to meet the edge measurement communication charging request.
Disclosure of Invention
The technical task of the invention is to provide a ticket calculation system and method based on edge calculation aiming at the defects.
A ticket calculation system based on edge calculation comprises,
the network node MME generates a call ticket;
the edge computing gateway server EC-GW is configured with TPM application;
the charging gateway CG is connected with the edge computing gateway server EC-GW;
the core side service network element S-GW is connected with the edge computing gateway server EC-GW;
and the home subscriber server HSS is connected with and receives the registration information from the edge computing gateway server EC-GW.
The edge computing gateway server EC-GW is connected with the charging gateway CG through an RF interface, receives the generated ticket and transmits the generated ticket file to the charging gateway CG.
The TPM application consists of a trusted platform module TPM chip and a corresponding trusted software protocol stack TSS, and provides a hardware protection-based safe storage and password operation function.
Based on the system, the method for calculating the call ticket based on the edge calculation comprises the following implementation steps:
firstly, user registration is completed through a Home Subscriber Server (HSS);
secondly, when the user calls up, the edge computing gateway server EC-GW inquires the opening service data of the user and constructs charging request information;
thirdly, extracting corresponding charging information from the call ticket, and generating a call ticket;
and fourthly, setting an encryption algorithm through TPM application, and encrypting the dialog list to complete the collection, processing and sending of the whole charging information.
The process of completing the user registration in the first step is as follows: when a user initiates registration, an edge computing gateway server EC-GW receives a registration message of the user, constructs a user data request UDR message, sends the user data request UDR message to a home subscriber server HSS, requests to download user data stored in a local place, and the user data comprises a communication service signed by the user and is used for charging in a calling process.
In the second step, when the call is connected, after receiving 200 messages of the response of the core side service network element S-GW, the edge computing gateway server EC-GW queries the service data of the user and constructs a charging request message ACR, and sends the charging request message ACR to the charging gateway CG together with the attribute value pair AVP related to the call.
The process of generating the call ticket in the third step is as follows: in a session, the edge computing gateway server EC-GW will send a Start charging request information Start ACR, 0 or multiple temporary charging request information Interim ACR and an end charging request information Stop ACR, after the charging gateway CG receives all ACRs related to a session, extract the corresponding charging information therein, and generate a ticket in asn.1 format.
Compared with the prior art, the ticket calculation system and method based on edge calculation have the following beneficial effects:
the invention relates to a ticket computing system and method based on edge computing, which can charge low-delay and high-bandwidth communication services deployed at a base station side by deploying an edge computing gateway (EC-GW) server at an edge base station side of network communication, can meet the credibility of system operation by internally arranging a TPM chip in the edge computing gateway, can flexibly encrypt call detail records (namely ticket CDR) generated in a calling process by using a secret key generated by the TPM according to different algorithms, and encapsulates the secret key into the TPM, can ensure the security of charging data called by a user, and simultaneously improves the reliability of the whole charging server system, has strong practicability, wide application range and easy popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flow chart of user registration in the embodiment.
Fig. 2 is a call charging flow chart in the embodiment.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the technical field better understand the scheme of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a ticket computing system based on edge computing, which relates to an EC-GW, an HSS, a Charging Gateway (CG), an MME, a core side service network element S-GW (P-CSCF, S-CSCF, MMtel AS, SCC AS) and the like containing a TPM chip.
The structure of the device specifically comprises that,
the network node MME generates a call ticket;
the edge computing gateway server EC-GW is configured with TPM application;
the charging gateway CG is connected with the edge computing gateway server EC-GW;
the core side service network element S-GW is connected with the edge computing gateway server EC-GW;
and the home subscriber server HSS is connected with and receives the registration information from the edge computing gateway server EC-GW.
The edge computing gateway server EC-GW is connected with the charging gateway CG through an RF interface, processes the received call information of the MME and the IMS-CORE to construct a call ticket CDR, and transmits the generated call ticket file to the charging gateway CG.
The TPM application consists of a trusted platform module TPM chip and a corresponding trusted software protocol stack TSS, and provides a secure storage and various password operation functions based on hardware protection for the computing platform.
Based on the system, the method for calculating the call ticket based on the edge calculation comprises the following implementation steps:
firstly, user registration is completed through a Home Subscriber Server (HSS);
secondly, when the user calls up, the edge computing gateway server EC-GW inquires the opening service data of the user and constructs charging request information;
thirdly, extracting corresponding charging information from the call ticket, and generating a call ticket;
and fourthly, setting an encryption algorithm through TPM application, and encrypting the dialog list to complete the collection, processing and sending of the whole charging information.
The process of completing the user registration in the first step is as follows: when a user initiates registration, an edge computing gateway server EC-GW receives a registration message of the user, constructs a user data request UDR message, sends the user data request UDR message to a home subscriber server HSS, requests to download user data stored in a local place, and the user data comprises a communication service signed by the user and is used for charging in a calling process.
In the second step, when the call is connected, after receiving 200 messages of the response of the core side service network element S-GW, the edge computing gateway server EC-GW queries the service data of the user and constructs a charging request message ACR, and sends the charging request message ACR to the charging gateway CG together with the attribute value pair AVP related to the call.
The process of generating the call ticket in the third step is as follows: in a session, the edge computing gateway server EC-GW will send a Start charging request information Start ACR, 0 or multiple temporary charging request information Interim ACR and an end charging request information Stop ACR, after the charging gateway CG receives all ACRs related to a session, extract the corresponding charging information therein, and generate a ticket in asn.1 format.
An example is given below with reference to fig. 1 and 2:
as shown in fig. 1, when a user initiates registration, the EC-GW constructs a user data request UDR message after receiving a registration message Register of the UE, and sends the user data request UDR message to the HSS, where the request is stored in a local place, and the user data includes a communication service subscribed by the user and is used for charging in a call process.
AS shown in fig. 2, when a terminal initiates a call, an EC-GW receives an INVITE message actually sent by a user, allocates a session Charging identifier (ICID) to the session, and sends a header field of a P-Charging-Vector in an INVITE message to each service network element (P-CSCF, S-CSCF, MMtel AS, SCC AS) in the S-GW, and when the call is connected or a media update occurs, the EC-GW receives a 200/ACK message and constructs a startadc message; when the call is finished, the business network element receives BYE information sent by a calling party and a called party through the network side, constructs StopACR information at the same time, the information carries AVP such as ICID, session ID, calling and called numbers and the like, sets the current encryption algorithm as AES by using a TSS software stack, creates a secret key, packages the secret key as sensitive data into TPM by using the ICID, calls an encryption and decryption command TPM2_ EncryptDesrypt to encrypt ACR information and sends the ACR information to a charging center CG through an RF interface.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (1)
1. A method for calculating call ticket based on edge calculation is characterized in that the method is realized based on a call ticket calculating system, the structure of the call ticket calculating system comprises,
the network node MME generates a call ticket;
the edge computing gateway server EC-GW is configured with TPM application;
the charging gateway CG is connected with the edge computing gateway server EC-GW;
the core side service network element S-GW is connected with the edge computing gateway server EC-GW;
the home subscriber server HSS is connected with and receives registration information from the edge computing gateway server EC-GW;
the edge computing gateway server EC-GW is connected with the charging gateway CG through an RF interface, receives the generated ticket and transmits the generated ticket file to the charging gateway CG;
the TPM application consists of a trusted platform module TPM chip and a corresponding trusted software protocol stack TSS, and provides a safe storage and password operation function based on hardware protection;
the ticket calculation method based on edge calculation comprises the following steps:
firstly, user registration is completed through a Home Subscriber Server (HSS);
secondly, when the user calls up, the edge computing gateway server EC-GW inquires the opening service data of the user and constructs charging request information;
step three, extracting corresponding charging information and generating a ticket;
step four, setting an encryption algorithm through TPM application, encrypting the dialog list, and completing the collection, processing and sending of the whole billing information;
the process of completing the user registration in the first step is as follows: when a user initiates registration, an edge computing gateway server EC-GW receives a registration message of the user, constructs a user data request message, sends the user data request message to a home subscriber server HSS, requests to download user data stored in a local place, and the user data comprises a communication service signed by the user and is used for charging in a calling process;
in the second step, when the call is connected, after receiving 200 messages of the response of the core side service network element S-GW, the edge computing gateway server EC-GW queries the service data of the user and constructs a charging request message ACR, and sends the charging request message ACR to the charging gateway CG with the attribute value pair AVP related to the call;
the process of generating the call ticket in the third step is as follows: in a session, the edge computing gateway server EC-GW will send a Start charging request information Start ACR, 0 or multiple temporary charging request information Interim ACR and an end charging request information Stop ACR, after the charging gateway CG receives all ACRs related to a session, extract the corresponding charging information therein, and generate a ticket in asn.1 format.
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| WO2020028490A1 (en) * | 2018-08-02 | 2020-02-06 | Intel Corporation | Association of 3gpp (third generation partnership project) upf (user plane function) and edge computing application server |
| CN113079565B (en) * | 2021-04-21 | 2022-06-03 | 恒安嘉新（北京）科技股份公司 | LTE edge user network access method and device |
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| CN101931720A (en) * | 2009-06-25 | 2010-12-29 | 迈普通信技术股份有限公司 | VoIP network charge system and method |
| CN103517245A (en) * | 2012-06-21 | 2014-01-15 | 中兴通讯股份有限公司 | D2D communication charging method and system |
| CN106411537A (en) * | 2016-11-21 | 2017-02-15 | 济南浪潮高新科技投资发展有限公司 | IMS-network-session-based off-line charging ticket protection method |
| CN106817686A (en) * | 2015-11-27 | 2017-06-09 | 大唐移动通信设备有限公司 | A kind of charging method and device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931720A (en) * | 2009-06-25 | 2010-12-29 | 迈普通信技术股份有限公司 | VoIP network charge system and method |
| CN103517245A (en) * | 2012-06-21 | 2014-01-15 | 中兴通讯股份有限公司 | D2D communication charging method and system |
| CN106817686A (en) * | 2015-11-27 | 2017-06-09 | 大唐移动通信设备有限公司 | A kind of charging method and device |
| CN106411537A (en) * | 2016-11-21 | 2017-02-15 | 济南浪潮高新科技投资发展有限公司 | IMS-network-session-based off-line charging ticket protection method |
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