Ngn work in itu t sg11
Download
1 / 15

NGN Work in ITU-T SG11 - PowerPoint PPT Presentation


  • 77 Views
  • Uploaded on

GSC9/GTSC_005. NGN Work in ITU-T SG11. 2004.5.11 Yukio Hiramatsu Chairman of ITU-T SG11. GSC-9, Seoul. 1. Outline. Major achievements during the current study period NGN activities in SG11 New Questions of SG11 for the next study period

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' NGN Work in ITU-T SG11' - julian-kline


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Ngn work in itu t sg11

GSC9/GTSC_005

NGN Work in ITU-T SG11

2004.5.11

Yukio Hiramatsu

Chairman of ITU-T SG11

GSC-9, Seoul

1


Outline
Outline

  • Major achievements during the current study period

  • NGN activities in SG11

  • New Questions of SG11 for the next study period

  • Work programme for NGN signalling requirements and protocols

  • Draft Technical Reports on NGN

  • Draft Technical Report on IP QoS

  • Possible work on security

GSC-9, Seoul


Major achievements during the current study period
Major achievements during the current study period

  • IN work completed with approval of CS4 (Interworking with IP) (Q.124x-series)

  • BICC CS2 (support of IP bearer) approved. BICC CS3 (further enhancement) progressed. (Q.1902-series, etc.)

  • Support of International Emergency Preferential Service (IEPS) step1 approved. (Amendments to the existing ISDN, B-ISDN, SS7 and BICC protocols)

  • Interworking between SIP – BICC/ISUP CS1 approved. (Q.1912.5)

  • ATM over MPLS signalling progressed. (Amd Q.2920)

  • Interworking between AAL2 signalling CS3 and IP control signalling progressed. (Q.263x-series)

  • NGN related protocol work has been started.

GSC-9, Seoul


Ngn activities in sg11
NGN activities in SG11

  • Two brainstorming sessions (Feb 2002 and Nov 2002 SG11).

  • Initial idea for Draft 3 new Questions (Nov.2002 SG11).

  • TRQs identified at the NCAP Rapporteurs meeting in Paris (April 2003)

  • Draft 3 new Questions developed (Sep 2003 SG11).

  • Work programme updated (March 2004 SG11).

  • Set of new Questions for the next study period (March 2004).

  • Existing Questions have been studying NGN related issues.

    • Q.1/11 (Requirements for IP and IN based services)  Draft TRQs.

    • Q.4/11 (API requirements)  Q.supp.40, 48

    • Q.7/11 (IP telephony requirements)  Q.supp.49 (TRQ.2840)

    • Q.8/11 (QoS requirements)  Draft TRQ.

GSC-9, Seoul


Draft new questions
Draft new Questions

GSC-9, Seoul



Trq ncap1
TRQ.NCAP1

Scope of NGN

Customer Premises Network

Access Network

User

Core Network

Customer Premises Network

Access Network

User

CATV network, ADSL/VDSL, fiber network, RITL (Radio in the loop), satellite and wireless network.

CPN comprising access unit, TV, PC, phone, wireless phone

Telecommunication network, PSTN, N-ISDN, B-ISDN provided by carriers.

GSC-9, Seoul


High level functional requirements
High level functional requirements

Extract from TRQ.NCAP1:

  • Addressing, Naming and Directory Services features

  • User Profile Management

  • Terminal Management

  • Handling of Various Communication Patterns

  • Mobility Management and Nomadism

  • Multi-level Quality of Service Support

  • Security

  • Network Integrity

  • Service Creation

  • Failure Avoidance and Recovery Including from Congestion and Failure (Network Reliability)

  • Public Safety (ETS/TDR)

  • OA&M Related Functions (Usage Control & Management)

  • Content Delivery Optimisation

GSC-9, Seoul


Q ngn nca
Q.NGN-NCA

  • Description of various service control architecture options in the context of a SIP-based Next Generation Network

  • 2 scenarios for SIP server with abstract call state machine and trigger processing (INAP based and OSA/Parlay based)

  • 4 scenarios for SIP server with trigger processing and without abstract call state machine (INAP based, OSA/Parlay based, full SIP and hybrid)

  • Scenario for SIP server without trigger processing nor abstract call state machine

GSC-9, Seoul


Some scenarios in q ngn nca
Some scenarios in Q.NGN-NCA

S

C

F

Service Logic Program

Service Logic Program

A

S

Service Execution Environment

Service Execution Environment

SIP signalling entity

INAP

S

S

F

SIP

Service access manager

SIP signalling entity

C

C

F

Abstract Call State Machine

Service Access Manager

SIP

SIP

SIP

SIP

SIP signalling entity

SIP signalling entity

Full SIP

SIP-IN direct access

GSC-9, Seoul


Signalling requirements for gate control interfaces trq ncap2
Signalling requirements for gate control interfaces (TRQ.ncap2)

Session

control signalling

Session

control signalling

Gate

controller

Gate

controller

Session

control signalling

IP Core Network

IP Access Network

IP Access Network

GW

GW

GSC-9, Seoul


Signalling requirements for ngn session control trq ncapx
Signalling requirements for NGN session control (TRQ.ncapx) (TRQ.ncap2)

These may be collocated in a single physical entity.

NNI

ACSF

SCSF

SCSF

ACSF

UNI

NGN-SCF

UNI

Bearer Level

Access Domain

Core Domain

Access Domain

ACSF:

NGN-SCF:

Access server function

NGN session control protocol

SCSF: Service call server function

GSC-9, Seoul


Work on ip qos
Work on IP QoS (TRQ.ncap2)

  • QoS is one of the most important features in NGN signalling.

  • Draft TRQ.IPQOS.SIG.CS1 is under development in SG11.

  • Scope expanded to include both “On-path” and “Off-path”, and to include various underlying technologies other than MPLS.

  • Mr. Wei Feng (Huawei Technologies, China) has been nominated as Rapporteur on Q.8/11 dealing with QoS signalling in this study period.

  • Interim Rapporteur meeting has been scheduled in July (in Shenzhen) with kind invitation by China members.

GSC-9, Seoul


Possible work on security
Possible work on security (TRQ.ncap2)

  • Requirements for secured communication interface between PSTN and VoIP networks

  • Analysis and examination of protocols and system interaction such as, but not limited to: SignTran, SS7, IPSec, H.248/Megaco, and SIP.

  • The end result may be enhanced protocol specifications with additional security measures as well as raising awareness of industry best practices.

  • Draft Recommendation X.805 - Security Architecture for Systems Providing End-to-End Communication be used as a sample tool for protocol security evaluation

GSC-9, Seoul


Security requirements for ngn
Security requirements for NGN (TRQ.ncap2)

Untrusted Networks

Trusted Networks

ISDN

Secure

interworking

PSTN

Private Networks

Internet

Secure operating concept

NGN

GSC-9, Seoul