NGN Charging issues NGN charging overview Some of IP charging projects and international activities Proposals for NGN charging
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2 Introduction NGN overview BcN overview BcN trial Service NGN Charging issues NGN charging overview Some of IP charging projects and international activities Proposals for NGN charging Conclusions
3 Past : Seper. of Voice & Data Transp. Present : Sep. of V & D Access Circuit Switch. Access Capa. Circuit Switch. Transp. Capa. Circuit Switch. Access Capa. Circuit Switch. Transp. Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. xdsl / FTTx Future : Integration of V & D Access and Transp. Near Future : Integration of V & D Transport Circuit Switch. Access Capa. Circuit Switch. Transp. Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. VoIP / VToA
4 Packet-based network able to provide services including Telecommunication Services and able to make use of multiple broadband, QoS-enabled transport technologies Service-related functions are independent from underlying transport-related technologies Unrestricted access by users to different service providers Generalized mobility which will allow consistent and ubiquitous provision of services to users.
5 ONA for easy adapt of new service All IP based integrated transport net. Integrated Customer + Service + Billing Mng. Dynamic Access Network Multi-Function TE Not IMS based Network, IMS is a core part of NGN Application Servers Application Layer NG Mobile Broadband Softswitch Open Interface NGN Transport Access Gateway Fixed/Broadcast AP Satellite Broadcas t LAN Home Net. Sensor Net. All-IP Core Network Layer Access Network Layer PC, Mobile Phone, Smart Phone, NGN Terminal Multi-Function Terminal Layer
6 NGN GSI replace NGN Focus Group Co-located Joint Activity : SG and ITU-T SG13 NGN FG SG 2 SG 11 SG 12 SG 16 SG 17 SG 19
7 Release 2 Services and Capabilities Functional Architectures and Requirements IPv6 application into NGN Mobility Management and FMC End-End QoS NGN Signaling with Resource Admission Control Migration and Interworking aspects (inc. IWF) NGN Securities Home Networking Networked aspects of Identification services Others
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9 Environment BcN GII Technology Push Market Demand ATM
10 BcN? IP(Packet) based integrated network for high quality convergence services through dynamic accesses Broadband Mobility Convergence Services Dynamic Access High Quality Service Integrated Network Advance Home Network QoS Security Open API IPv6 Integration of voice/data Converg. Fixed/Mobile Converg. Telecom/Broadc. Converg. TE/Appliance
11 Easy adapt of new service Application Servers All IP based integrated transport network Integrated Customer/ Service/Billing Management. Next Mobile Softswitch Open Interface BcN Transport Access Gateway Sat./Broadcast. Dynamic Access Network Multi-Function TE Broadband Fixed/Broadcast. PC, Hand Phone, Smart Phone, NG Terminal AP LAN Home Net. Sensor Net.
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13 âáàáàâàáâàáâ ßßßß ÞÝÜÜÝÜÝÜÝ ÞÞÞ Broadcasting Broadcasting Server satellite DMB Digital Home NOC Application and Control Servers Service Control Layer Commercial Network Transport Layer Transport equipment University Aggregation Switch Access Switch Access Layer Wired Video Phone Wireless Video Phone Mobile User Public Organization Home & Device Layer
14 Contents Provider DVD, Beta Tape (400) Storing Contents Headend BcN Transport Network DAEJEON 50 Daily Information /Game Game (shooting) Information (news) Storing Game Providing Info. Middleware (Authentication) EPG (UI) VoD Server (Store/Streaming) DWDM DongJak 30 BUSAN BunDang T-banking Banking Server Game/ Daily Information Server Softswitch Commercial Network BunDang 100 BUSAN 100 DAEJEON 100 SeoungBuk 100 phone
15 Service Layer Control Layer Transport / Access Layer Device Layer
16 Service Network Application VoIP network BcN Service platform VoIP/MMoIP (integrate fixed/mobile) Broadcasting platform Home Networking Legacy Network PSTN Network PSTN TDM Network Switched Network IP transport Network + Backbone network Open API BcN Core High Speed Network Access Network backbone Network /MFN Access Network Fixed access Network Wireless access Network Access Network Customers High-speed Internet Mobile Device
17 PowerCom Diffserv 802.1p PowerCom MPLS 802.1p
18 ISP (PSTN, VoIP, Mobile Telecommunication) Services Authentication Internet Seocho cable Suwon Broadcasting Daegu Broadcasting Using BcN Whole country transport network (2.5/10G) PowerCom Areum Broadcasting Gangnam cable C&M QRIX BcN Local transport network (2.5/10G) HFC network
19 What is NGN charging? It s a transport charging of network resources usage needed for transmitting packets or frames
20 Why NGN Charging is needed? User Side More cost effective services Provide a better Quality of Service Ex) (size, distance, time of day, delivery options ) Network Operator Side Routing of calls between different carriers No revenue Several architecture for providing current IP service ISP Side Offering an increasing number of IP services (video, VoIP, application hosting, VPN) More Interoperability between ISPs Cost saving support systems Hard to produce profit by only advertisement, Profit from providing Quality of Service
21 CATI - Charging and Accounting Technology for the Internet First project within Switzerland Research contents and target goal Design and implement of CA mechanism based on current IP protocol Have a two sub-field : CAPIV, MEDeB CAPIV - Charging and Accounting in the Internet and in Virtual Private Networks Design and implement of VPN service including CA function, best-effort service, differentiated service, congestion control mechanism etc.. MEDeB - Management, Evaluation, DEmonstrators, and Business Proof of charging technologies using today s application Initially they studies IntServ, now DiffServ Finished in 2000 while developing DiffServ-related architecture
22 RSVP extension for CATI
23 INDEX - Internet Demand Experiment Established 1996 by Berkeley Supported by NSF, Cisco.. Research contents and target goal Design of experiment network based on differentiated QoS Investigate and estimate of user s reaction Development for Pricing model and charging technology Focus on Supporting QoS
24 SUSIE - Charging for Premium IP Services in the European Information Infrastructures & Services Pilot Study of charging method for Premium IP Service based on Enhanced IP Service or ATM Design, implementation of charging system and development of reference model to support CA service Finished in 1999
25 SUSIE Reference Model Metering Layer Meter Reader Layer Accounting Processing Layer Charging Layer Billing Layer
26 PIP-NAR - Premium IP-Network Accounting Record Data structure to transfer charging information Used for transmission of charging information from Accounting layer to Charging layer
27 3GPP charging documents structure
28 Charging Mechanisms Based on reporting accounting information from each IMS node The reporting achieved by Diameter protocol Off-line Charging Accounting information is gathered from various IMS nodes On-line Charging Interacts in real/near real time with service provided by system Charging may be based on events, time, or resource usage
29 IMS offline charging architecture
30 IMS online charging architecture
31 A sample CDR Lasted out the next page
32 Lasted out the next page
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34 IMS NGN Service features Protocols Usage Voice; Data Legacy IP Personal Voice; Data, Multimedia; New emerging services DiffServ; IntServ; Flow-based; New protocols Home; Office; ; etc Relevant Terminal Equipment - TE Mobile phone All kinds of TEs at home and office
35 IETF AAA Working Group Authentication, Authorization and Accounting function based on Multi-network and platform Proposed that Remote Authentication Dial-In User Service, TACACS+ and DIAMETER authentication protocol Goals define one protocol that implements authentication, authorization and accounting used in a variety of applications
36 IPDR.org IP Detail Record Organization Mission To reduce the time and cost of usage measurement and exchange for next-generation service Method Implement de-facto open standards for IP-based support system interoperability, enabling providers to profitable deploy nextgeneration services Definition of the IPDR NDM-U (Network Data Management Usage) Is really useful? Only IPv4 based Conceptual model Finished in 2002.
37 OIF - Optical internetworking Forum OIF-CDR-01.0 Call detail records for OIF UNI 1.0 Billing For usage measurement functions that an Optical Switching System Including OAM&P Working Group Based on IPv4 but extensible to IPv6
38 ITU-T SG 3 D.ATM little IIC (International internet connection) D.50 IP Telephony Collaborate with other Standard Bodies NGN Charging
39 ITU-T SG 13 Focus on requirements and framework allowing accounting, charging, billing in NGN The key ideal is extending and combining the charging mechanisms of Circuit Switched, Packet Switched, and IMS The architectural framework is made from: Billing subsystem Charging subsystem Accounting subsystem
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48 Standardize the NGN charging Same treatment of QOS by telecom operators
49 IP Header TCP Header ã äå æçè é ìëê îíïðñ ã ò õôó îïðñ ö øù üûú ý ã þÿ ñ ÿ ÿ î ïð ã ÿ ð ý ã ü ö äå ã ð ã ü ö äå ã ð ü ý ã ü ö äå ã ü ã ü ö äå ã ö ü ü ã ò ï ñÿ ð ã ü ö äå ã ã å! "ö # ã ü ö äå ã äå æçè î$ïðñ ã ü ö äå ã %ï ñ& ï ' ÿ ( ) * ü ö äå ã +,ñ ÿ - ÿ ð ( ) ã ò ï ñÿ ð ã %ï ñ& ÿ. ð ã ü ö äå
50 Function Effects How often Amount of information Interface Reverse charging Indication/ Confirmation The purpose of reverse charge is to indicate (and agree upon) a distribution of the charges between the users involved. Indication is possible during the call setup phase. Only in-band signaling is considered (data channel is assigned after the call proceeding message is received). Call setup New I.E for indication, confirmation UNI/NNI Split charging The purpose of reverse charge is to indicate (and agree upon) a distribution of the charges between the users involved. Indication is possible during the call setup phase. Only in-band signaling is considered (data channel is assigned after the call proceeding message is received). Call setup New I.E for indication, confirmation UNI/NNI
51 Function Effects How often Amount of information Interface AOC To tell how much moneys are levied to the users. This function can be used whenever user s request During connection active phase Call setup/ call active phase Less than a one cell Originating UNI Usage data To make CDR (Connection Detail Record) in calling network, Actual Delivered user cell should be transferred from called network to the calling network for actual usage based charging. For upstream data can be measured in calling node. The counter is overflow. Call active phase/ release Counter overflow Actual delivered User cell, OAM cell, RM cell UNI/NNI
52 / Function Effects How often Amount of information Interface PPM equivalent signal In PSTN public telephone, exchange system send PPM (Periodic Pulse Metering) pulse according to the use of telephone services for levying the charge. Usage is reached the unit of money. Call active phase/ release Less than a one cell Originating UNI Settlement This capability is independent of call, and it will be used periodically (e.g. How many outgoing calls and incoming call, how much volume egresses and ingress s) New channel is preferred like ILMI=VCI 16. Independent of calls Interface X (out of scope) Only the border node in each Administration. Like Q3 interface for TMN
53 IPv4/ IPv6 DiffServ / IntServ / Flow tech Telecom business(wire/wireless)/ Broadcasting business New emerging services What is the next generation protocol..? IMS for the wireless operator? Bridging Technology IP/ ATM/ (SONET/SDH)/ WDM? IP Charging = customer OAM functions Need signalling channel for Charging Different view on QoS(Telco, Wire, wireless)
54 Common charging scheme and CDR for IP protocol irrespective of any applications Analysis customer s requirements Research for charging parameter First NGN Charging Recommendation will be made on June 2006
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