I ITUT 1 ITUT NGN release 1 2

I. ITU-T 융합서비스 표준화동향 1. ITU-T NGN release 1 2. Y. 2013 (Converged Service Framework) 3. Y. 2232 (WSCONV) 4. Y. OPENENV 3/38

1. ITU-T NGN 구조 I. ITU-T 표준동향 v ITU-T NGN: NGN 서비스 및 네트웍 요구사항, 망 기능구조, Qo. S 의 주제로 표준 화 추진 v NGN functions are divided into service stratum functions and transport functions v stratum NGN은 서비스제어와 응용, 전 달제어, 전달기능으로 구분된 다 v 주요문서 v Y. 2012: Functional Requirements and architecture v. Y. 2011: General principles and general reference model for Next Generation Networks v Y. 2001: General overview of NGN v Y. 2021: IMS for NGN v Y. 2031: PSTN/ISDN Emulation Architecture v Y. 2111: Resource and admission control functions in NGN 4/38

1. ITU-T NGN 구조 (rel. 1) v NGN release 1 서비스 컴포넌트 ü IP Multimedia Service component ü PSTN/ISDN Emulation Service component ü Other NGN service component v NGN release 1 기능 요구사항 및 구조 문 서는 2006년 Y. 2012 로 표준화가 완성되 었다. 5/38 I. ITU-T 표준동향

1. ITU-T NGN 구조 I. ITU-T 표준동향 v NGN Service-specific components ü IP Multimedia Service component w supports mediated multimedia services w include multimedia session services, such as voice or video telephony or PSTN/ISDN simulation, and some non-session services, such as subscribe/notify for presence information and the message method for message exchange ü PSTN/ISDN Emulation Service component w refers to the provision of PSTN/ISDN service capabilities and interfaces using adaptation to an IP infrastructure w enables the support of legacy terminals connected through a gateway to an IP network w All PSTN/ISDN services remain available and identical, such that end users are unaware that they are not connected to a TDMbased PSTN/ISDN 6/38

1. ITU-T NGN 구조 I. ITU-T 표준동향 v NGN Service-specific components ü Other NGN service components w The definition of other NGN service-specific components is for further study. w Service specific components may be required in order for the NGN to support services such as content delivery services, multimedia multicast or broadcast services , push services, data retrieval applications, data communication services, online applications, sensor network services, remote control services, and over-the-network device management v NGN Transport-specific components ü NACF (Network Attachment Control Function) component ü RACF (Resource & Admission Control Function) component ü Other NGN transport components 7/38

1. ITU-T NGN 구조 (rel. 2) v NGN release 2 서비스 컴포넌트 ü ü IP Multimedia Service component PSTN/ISDN Emulation Service component IPTV service component Other NGN service component v NGN release 2 표준 화는 IPTV 서비스 컴포넌트를 포함하 여 현재 진행중이다 8/38 I. ITU-T 표준동향

2. CSF (Y. 2013) v CSF기능구조 ü Convergence Coordination Functional Entity (CC-FE) ü Network Support Functional Entity (NS-FE) ü Edge Support Functional Entity (ES-FE) ü Client Support Functional Entity (CLS-FE) ü Convergence Policy Functional Entity (CP-FE) SIP or Parlay-X 14/38 I. ITU-T 표준동향

2. CSF (Y. 2013) PSTN 과 Wi. MAX 망 융합 구성예 16/38 I. ITU-T 표준동향

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v 제목: NGN convergence service model and scenario using Web services (Editor: 이강찬 ETRI) v 목표 ü defines the convergence model for NGN based on Web Services ü provides the detailed scenario on each convergence model in forms of Web Services. v 범위 Requirements of convergence services scenario in NGN Web Services deployment model for NGN Web Services based convergence service scenarios in NGN Value proposition of Web Services in Convergence service scenarios ü Security and Interoperability considerations of Web Services based Convergence service scenarios ü ü 19/38 Y. 2232, ITU-T recommendation

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v Conceptual Diagram of NGN Architecture with extension of Web Services ü NGN을 legacy로 간주하고, NGN외부의 웹서비스 망을 통해 NGN서비스와 통합 하기위한 구조 WSR: Web Service Requestor WSP: Web Service Provider WS: Web Service WSG: Web Service Gateway NWSR: Non Web Service Requestor NWSP: Non Web Service Provider 20/38 Y. 2232, ITU-T recommendation

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v Conceptual Diagram of the Web Services Gateway ü OFG ü OPG ü OIG description ü ONWSP ü ONWSR WSG operation for the finding and retrieval of service descriptions WSG operation publication of service descriptions WSG operation SOAP execution of services based on the service WSG operation for proprietary operation with NWSP WSG operation for proprietary operation with NWSR WSR: Web Service Requestor WSP: Web Service Provider WS: Web Service WSG: Web Service Gateway NWSR: Non Web Service Requestor NWSP: Non Web Service Provider 21/38 Y. 2232, ITU-T recommendation

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v Message Flow of OIG 22/38 Y. 2232, ITU-T recommendation

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v Request and Response interaction pattern in Web Services Combination of WSG interaction pattern WSG Adapter pattern WSG Proxy pattern WSG가 WS 인터페이스를 갖지못하는 legacy서비스(NWSP)를 요청하는것에 대해 adapter기능 제공 WS 인터페이스를 갖지못하는 legacy서비스(NWSR)로부터 WS를 요청하는것에 대해 WSG가 proxy기능 제공 WSG Security pattern WSG가 네트웍에 대한 security기능 제공 23/38 Y. 2232, ITU-T recommendation

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v Request and Response interaction pattern in Web Services WSG Qo. S control pattern WSG screening pattern WSG가 WS에 대해 Qo. S 제어를 하도록 함; WSP들의 Qo. S를 모니터하고 가장 적합한 WSP를 선택 WSG가 잘못된 요청등에 대한 서비스요청을 screen하는 기능 WSG Substitution pattern 호출한 서비스 WSP 1이 응답하지 않는경우, WSG가 WSP 2를 대체하여 호출 WSG Composition pattern 서비스요청이 호출되었을때, 이것이 멀티플 WSP순서로 제공되는경우 24/38 Y. 2232, ITU-T recommendation

3. Y. 2232 (WSCONV) I. ITU-T 표준동향 v NGN+Web 통합서비스 시나리오 : Web-based Call Disposition Scenario 25/38

4. Y. OPENENV v Y. openenv: Open Service Environment in NGN I. ITU-T 표준동향 (Editor: ETRI이원석) ü NGN 응용/서비스계층상에, NGN자원을 효율적으로 개방하기 위한 프레임웍 구조를 정 의 (2) (1) (5) (3)OSE(4) Application Support Functions & Service Support Functions Functional Architecture for OSE & (6) (1) Service Registration and Discovery Scenario 26/38

2. FG IPTV 표준동향 v IPTV Functional Architecture Framework IPTV architecture, FG IPTV-DOC-0115 31/38 II. IPTV 표준화기술 서비스 제공자 영역 네트웍 제공자 영역

2. FG IPTV 표준동향 v Non-NGN IPTV architecture 인터넷 전달망기능 34/38 II. IPTV 표준화기술

2. FG IPTV 표준동향 v NGN, Non-IMS IPTV architecture NGN 전달망 기능 35/38 II. IPTV 표준화기술

2. FG IPTV 표준동향 v NGN, IMS IPTV architecture IMS 제어망 기능 NGN 전달망 기능 36/38 II. IPTV 표준화기술

2. FG IPTV 표준동향 II. IPTV 표준화기술 v Detailed Application Functional Architecture 37/38

2. FG IPTV 표준동향 II. IPTV 표준화기술 v DRM components ü DRM Rights & Key Management w 컨텐츠 보호를 제어하고, 컨텐츠 권리와 컨텐츠 암호화와 해독에 필요한 Key 를 관리 w 컨텐츠 권리를 Content Preparation Function에서 획득 ü Content Encryption w 컨텐츠 암호화 w Content Preparation 또는 Content Delivery에서도 암호화 가능 w DRM client § 컨텐츠 decryption을 수행하는 IPTV device의 DRM기능 w DRM Rights Source § 서비스 제공자가 컨텐츠를 사용할 수 있는 권한을 정의 39/38

2. FG IPTV 표준동향 II. IPTV 표준화기술 v Detailed Content Delivery Functional Architecture 41/38

2. FG IPTV 표준동향 II. IPTV 표준화기술 v Content Delivery Control Function ü Distribution Control Function w Delivery & Storage 자원을 coordinate하고 최적의 컨텐츠분배정책 수립 w Contents Delivery & Storage Function 과 Location Function에서 얻은 정보를 이용하여 최적 의 분배정책 수립 ü Location Function w Media client에게 컨텐츠를 전달할 최적의 Contents Delivery & Storage Function 표시 w 컨텐츠 논리 식별자와 같은 application 정보를, 서버주소와같은 물리적 정보로 해석 w 논리채널 식별자와 대응하는 멀티캐스트 네트웍 파라미터(멀티캐스트 주소)의 매핑관계를 관리하 고 관련 매핑정보를 IPTV Application 또는 Service Control Function에게 전달 v Content Delivery & Storage Function ü Delivery Functions (Unicast & Multicast) w Media client에게 컨텐츠 스트림 (e. g. RTP over UDP, Unicast or Multicast) 스트리밍 전달 w Media client와 파일 uploading and downloading w Media client 요청을 검증하기 위해 Application 보안 정보를 사용 ü Cache & Storage Function w Time-shifted linear TV경우, live stream content를 caching w Vo. D경우 , file content를 저장 ü Distribution Function: 42/38 content Preparation Function에게 받은 컨텐츠전달