Report of CJK 9th NGN-WG Meeting

April 10, 2007

1. Opening of the meeting

The 9th CJK NGN-WG meeting was held at Jeju, Korea on April 9 and 10, 2007. We

had a participation of 29 from CCSA (7), TTC(7), and TTA(15). It was chaired by Mr.

Taesang CHOI of TTA, with Ms. Duo LIU of CCSA and Mr. Naotaka MORITA of

TTC as vice chair persons.

2. Approval of the Agenda

The agenda given by CJK_NGN_9_001r1 was approved.

3. Document list and allocation

Annex A to the meeting report shows the document list and its arrangement at this

meeting. All documents are available at the web site below.

http://www.tta.or.kr/English/new/main/index.htm

4. Status Report of ITU-T FG IPTV Ad-hoc Group

CJK_NGN_9_017: Activities of CJK Editing Team for FG-IPTV

Mr. Imanaka (TTC) summarized the achievement of CJK editing activities on IPTV

documents so far. He also proposed a table that shows which Questions and SGs

should be assigned for FG IPTV deliverables for creating subsequent

Recommendations. The meeting well recognized its purpose with modifications and

agreed the following:

1) If joint contributions are ready before the meeting, the meeting supports to submit

them to FG IPTV meeting in May

2) For the assignment mapping table, submit it as a preliminary material to IPTV JCA

for further discussion. The modified mapping table is attached in Annex B.

3) For July meeting contribution preparation, the meeting agreed to continue the

discussion on a e-mail reflector of the IPTV Ad-hoc group

Regarding the IPTV architecture, CCSA informed their ongoing activity how to

harmonized two functional architectures for IPTV, which are currently on the table.

5. Technical Discussions on IPTV Issues

CJK_NGN_9_005: Multimedia Multicast Session Management Web Service

Mr. Kum (TTA) proposed initiating a study on “Multimedia Multicast Session

Management Web Service”, which allows for a third party to control a multicast

session, its members, and channel presence information via open interface based on

web service. He illustrated several interesting example services such as community

TV, scheduled T-Learning, Caller-ID on TV, etc. It can be useful for IPTV value added

service providers and mobile IPTV service providers. There were good discussions

regarding the relationship between the proposal and the NGN and IPTV architecture.

After lengthy discussion, the meeting recognized Mr. Kum’s proposal and other’s

opinions to be a basis for further investigation on this issue.

CJK_NGN_9_015: Mobile IPTV over wireless networks in NGN

Mr. Park (TTA) described his intention to propose establishing a new question on

mobile IPTV over wireless networks for NGN in ITU-T SG13 and seek the support

from the CJK members. Discussions on the scope of the proposed work and its

relationship with the existing mobility work in the ITU-T SGs such as SG19 were

made. After extensive discussion, the meeting generally agreed the importance of the

work and there were no particular objections to the proposal of establishing a new

question dealing with the identified issues. The meeting suggested that the analysis of

the possible gaps or missing capabilities would be helpful to identify and initiate

specific study items.

CJK_NGN_9_010: Questions of NGN Release documents

Ms. Liu (CCSA) presented various issues and questions regarding NGN Release2

capabilities and their scope, the complexity of R1 FRA and its relationship with R2

FRA, the speed of NGN protocol standards development, and the progression of R2

documents. She asked NGN-WG members, especially SG13 management team

members, to provide their view on this. Mr. Morita (TTC) and Mr. LEE (TTA) who are

the vice chairmen of the SG13 gave their opinions regarding these questions as

follows:

The scope of R2 includes the mobility and streaming services

Which documents belong to R1 or R2 will be clarified at the end of this study

period.

The FRA document is the base of further architecture documents. New

architecture documents could be developed separately and also could be possible

to modify the current FRA document if some new FEs are general.

The speed of signaling protocols development is not satisfactory, so the new

structure of next period is very important for coordinating the different stages

ranging from requirements to signaling.

Each document and contribution should propose the future work to be done

clearly such as stage 1, stage2, or stage3.

There may be two more NGN-GSI meetings and at least one is together with

Working Party meetings in order to consent some documents after the next

January SG13 plenary meeting

The meeting agreed that the next study period issue should be discussed among CJK,

such as study areas, structure, and working methods.

CJK_NGN_9_004: Clarification for IPTV functions

Mr. Kim (TTA) analyzed functional architectures of NGN and IPTV. He proposed that

IPTV Functions should be aligned with NGN functions which enable to build a single

service platform to cover multiple services. The effort was appreciated by the meeting.

Further discussion and coordination will be continued via e-mail discussion within FG

IPTV ad-hoc.

CJK_NGN_9_012: The discussion IPTV works in the ITU-T SG13

Mr. Xu (CCSA) raised an issue about the interaction of NACF with application support

functions and service support functions. The meeting noted for the importance of the

proposed issue and agreed to take it to be a basis for further investigation. The meeting

suggested referring to the relevant SDO’s documents for a starting point.

CJK_NGN_9_003: WG4 output documents with related document in the last

CJK NGN meeting

Ms. Liu (CCSA) described issues and suggestion on the alignment between two

working documents in FG IPTV WG4 for the consistency. The meeting clearly

recognized the issue and expected to be solved by the close collaboration among

relevant experts. Some remarks were made that the discussion should be done in a

productive manner and respect agreements once they were reached. Cooperation sprit

was well taken by the relevant experts.

CJK_NGN_9_002, 016, 018: Proposal of Extension for FG IPTV Activities

Ms. Liu (CCSA) and Mr. Imanaka (TTC) proposed cooperation of the extension of

FG-IPTV activity which was proposed to ITU-T SG13 meeting in April and in IPTV

JCA to progress the ongoing work. The proposals were the result of extensive e-mail

discussion before the meeting. The meeting unanimously agreed the proposal.

6. Joint Session between NGN-WG & N-ID-WG for USN Issue

N-ID_9_007: A standardization initiative on Ubiquitous Sensor Network

During the management team meeting before the NGN-WG meeting, NGN-WG and

N-ID WG agreed to have a joint meeting on USN issue due to the common interest.

During this meeting, Mr. Kim (TTA) presented various USN issues which include

major technical aspects such as USN management, QoS, accounting and billing,

security, directory service, etc. There were extensive discussions on various aspects of

the proposal. Due to the nature of overlapping issues, the meeting agreed to proceed

this study by both NGN and N-ID WGs jointly. Contributions are invited on this topic.

7. Technical Discussions on Multicast Issues

CJK_NGN_9_012: Proposal for initiating new NGN Work on Multicast

Architecture

Mr. Lee (TTA) presented the proposal for initiating a new work on multicast

architecture including multicast capability in NGN service stratum on behalf of the

contributor. The proposal was submitted as a contribution to ITU-T SG13 meeting in

April. There were lengthy discussions on the relationship between the proposal and

transport multicast. Since the contributor was absent, clarifications were requested

such as consistency with transport multicast and its service assumed. The meeting

agreed to discuss it further at the CJK NGN-WG ad-hoc meeting on April 15 in

Geneva.

8. Technical Discussions on CJK NGN Test-bed Issues

CJK_NGN_9_007 and 008: Status Report and Proposal for Next Steps of Test-bed

Activities from CCSA

Ms. Zhang (CCSA) introduced the successful results of the first phase of the CJK test-

bed activity. Scenarios 2 and 4 were performed. Before going into the next step, she

asked the confirmation of the necessity of remaining test scenarios and possible

priority of the scenarios.

CJK_NGN_9_020: Status Report and Next Steps of Test-bed Activities from TTA

Mr. Choi (TTA) showed some examples of detailed test results and also proposed next

steps on the testing activities.

SDOs currently involved in the test will further discuss the next testing scenarios,

testing items, and specific testing schedules through e-mail discussions. The current

testing is based on the Call Server model, however, the meeting also recognized the

interest of IMS-based testing by all SDOs and encourage them to bring their decisions

on the possibility of joining the testing by the next CJK NNG-WG meeting.

CJK_NGN_9_014: Proposal for CJK NGN IPTV Testbed Setup

Mr. Hwang (TTA) introduced their activities on IPTV testing and proposed to setup

testing collaboration over the CJK NGN test-bed. The meeting recognized the

importance of the testing but some clarifications were requested regarding the

schedule, the scope of working items, the rationale of international IPTV testing, and

some other technical issues such as the meaning of SIP-based IPTV. The proposal was

appreciated by the meeting. The meeting generally agreed to consider further on the

issue and suggested to bring contributions incorporating the comments made to future

meetings.

9. Technical Discussions on Beyond NGN Release 1 Issues

CJK_NGN_9_011: The Candidate of the NGN FPBN – PTDN (Public Telcom

Data Network ）Mr. Xu (CCSA) presented information about NGN Future Packet Based Network –

Public Telecommunications Data Network. This presentation was made as a follow-up

of the previous meeting request. Clarifications on some issues such as the meaning of

universal network edge providing separation of Internal Network” from “External

Network” and comprehensive specification of major interfaces were made. The

meeting appreciated for information and agreed to study further on the issue inside

CJK. More contributions are also invited.

CJK_NGN_9_013: IPv6 based NGN

Mr. Park (TTA) presented the objectives, definition, scope, requirements, functional

architecture, and relationship with other networks of IPv6 based NGN. He also

emphasized that the study direction was slightly modified from “Impacts of IPv6 into

NGN” to “IPv6 based NGN” for the sake of easier understanding. According to the

request from TTA, the meeting agreed to treat the issue identified by the contribution

as a major item to be discussed in CJK NGN-WG ad-hoc meeting on April 15 in

Geneva.

CJK_NGN_9_021: Current situation of standardization study in Japan

Mr. Imanaka (TTC) provided the latest information of standardization activities in

Japan including a new structure to promote home networking study. The meeting

appreciated the provided information.

10. Discussions on CJK Cooperation and Position on the Mission of the SG13

Next Study Period

CJK_NGN_9_023: Proposal regarding upgrade of CJK capabilities

Mr. Lee (TTA) proposed a working method to improve in standard activity of CJK.

The main proposal was to produce white papers as working document of our

cooperation efforts for the CJK internal use only. He also proposed some initial study

items. The meeting agreed the proposal in principle. In terms of the study item

selection the meeting recommended to discuss it further over e-mail reflector which

will be lead by Mr. Lee. The decisions are planned to be made by the next CJK NGN-

WG meeting.

During the discussion, it was also recognized that other SDO’s were seeking synergy

effect to create common IMS, which may have influence to CJK NGN activity. The

meeting agreed to have further consideration among CJK.

CJK_NGN_9_009: SG13 mission for the next study period

Mr. Lee (TTA) presented a proposal to SG13 meeting in April. It encouraged

consideration of the mission of SG13. It proposed introduction of a new phrase to

express the vision of the next study period, i.e., “Next Generation Ubiquitous

Networking”. The meeting appreciated the input and agreed to start the creation of the

mission statement based on the proposal.

11. New Management Team

From the next meeting, the following new management team was agreed.

Chair person: Naotaka MORITA of TTC

Vice chair person: Heyuan XU of CCSA

Vice chair person: Taesang CHOI of TTA

12. Future meeting plan

Regarding ad hoc level, the next NGN-WG ad-hoc meeting will be held at ITU-T

building in Geneva, from 9:00 to 12:00 on Sunday, April 15th of 2007 chaired by Mr.

Naotaka MORITA (to be confirmed). The second ad hoc may take place depending on

the results of the first ad hoc in Geneva. From TTC, contributions 28, 82, 83 and 84

were proposed to be discussed.

IPTV ad-hoc meeting will be held at Bled, Slovenia before the next FG IPTV meeting.

Regarding the WG level, the 10th NGN-WG meeting will be held hosted by CCSA in

China on 17th 19th October 2007. Confirmation should be made with FGIPTV

schedule.

The 11th NGN-WG meeting will be held hosted by TTC in Japan, in Spring 2008. It

may be in conjunction with CJK plenary.

13. Closure of the meeting

The chairman gave his thanks to all participants. Thanks a lot to contributors and the

leaders on each group. And special thanks to TTA for its excellent local arrangements.

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Annex A. The 9th CJK NGN WG Meeting Documents

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DOCUM

ENT

SOUR

CE DESCRIPTION FILE

1 001 TTA Draft Agenda CJK_NGN_9_0

01

2 002 CCSA FG IPTV proposalCJK_NGN_9_0

02

3 003 CCSA WG4 output documents CJK_NGN_9_0

03

4 004 TTA Clarification for IPTV Functions CJK_NGN_9_0

04

5 005 TTA Multimedia Multicast Session Management Web

Service

CJK_NGN_9_0

05

6 006 TTA Mobile IPTV and Wireless Implication for NGN CJK_NGN_9_0

06

7 007 CCSA Status Report of Test-bed from CCSA CJK_NGN_9_0

07

8 008 CCSA Feasibility Analysis and Proposal for next phases

test

CJK_NGN_9_0

08

9 009 TTA SG13 mission for the next study period CJK_NGN_9_0

09

10 010 CCSA Questions of NGN Release documents CJK_NGN_9_0

10

11 011 CCSA The Candidate of the NGN FPBN——PTDN （Public

Telcom Data Network ）

CJK_NGN_9_0

11

12 012 CCSA The discussion IPTV works in the ITU-T SG13 CJK_NGN_9_0

12

13 013 TTA IPv6 based NGN CJK_NGN_9_0

13

14 014 TTA Proposal for CJK NGN IPTV Testbed Setup CJK_NGN_9_0

14

15 015 TTA Mobile IPTV over Wireless Networks in NGN CJK_NGN_9_0

15

16 016 TTC Proposal of cooperation for FG-IPTV extension in

SG13

CJK_NGN_9_0

16

17 017 TTC Activities of CJK editing team for FG-IPTV

documents

CJK_NGN_9_0

17

18 018 TTC Proposal of cooperation in IPTV-JCA CJK_NGN_9_0

18

19 019 TTC Japanese contributions in SG13 CJK_NGN_9_0

19

20 020 TTA CJK NGN Test-bed Activity Testing Screenshots

and Next Steps

CJK_NGN_9_0

20

21 021 TTC Current situation of standardization study in Japan CJK_NGN_9_0

21

22 022 TTA Proposal for initiating new NGN Work on Multicast

Architecture

CJK_NGN_9_0

22

23 023 TTA Modified proposal regarding upgrade of CJK

capabilities (Updated document of CJK7_014)

CJK_NGN_9_0

23

Annex B. Candidate of Target Q/SGs for FG-IPTV Deliverables

SG16

SG16, SG9

Q3/13, SG11

Q15/13

Q4/13

Q4/13,SG16

Q4/13

Q4/13, SG12, SG9

Q1/13, (Q8/13)

Q3/13

Q2/13

Candidate of Target Q/SG

Working Document: IPTV service scenarios [Note1]FG IPTV-DOC-00551

Working Document: IPTV Service RequirementsFG IPTV-DOC-00601

Working document: IPTV ArchitectureFG IPTV-DOC-00621

Working document: Quality of Experience Requirements for IPTV

FG IPTV-DOC-00632

Working document: Traffic Management Mechanism for the Support of IPTV Services

FG IPTV-DOC-00642

Working document: Application layer reliability solutions for IPTV

FG IPTV-DOC-00652

Working document: Performance monitoring for IPTV

FG IPTV-DOC-00662

Working document: IPTV Security AspectsFG IPTV-DOC-00673

Working Document: IPTV Network Control AspectsFG IPTV-DOC-00684

Working Document: IPTV Middleware, Application and Content Platforms

FG IPTV-DOC-00706

Working Document: Aspects of IPTV End SystemsFG IPTV-DOC-00695

Draft TitleCurrent DraftWG

SG16

SG16, SG9

Q3/13, SG11

Q15/13

Q4/13

Q4/13,SG16

Q4/13

Q4/13, SG12, SG9

Q1/13, (Q8/13)

Q3/13

Q2/13

Candidate of Target Q/SG

Working Document: IPTV service scenarios [Note1]FG IPTV-DOC-00551

Working Document: IPTV Service RequirementsFG IPTV-DOC-00601

Working document: IPTV ArchitectureFG IPTV-DOC-00621

Working document: Quality of Experience Requirements for IPTV

FG IPTV-DOC-00632

Working document: Traffic Management Mechanism for the Support of IPTV Services

FG IPTV-DOC-00642

Working document: Application layer reliability solutions for IPTV

FG IPTV-DOC-00652

Working document: Performance monitoring for IPTV

FG IPTV-DOC-00662

Working document: IPTV Security AspectsFG IPTV-DOC-00673

Working Document: IPTV Network Control AspectsFG IPTV-DOC-00684

Working Document: IPTV Middleware, Application and Content Platforms

FG IPTV-DOC-00706

Working Document: Aspects of IPTV End SystemsFG IPTV-DOC-00695

Draft TitleCurrent DraftWG

Note 1: The scope and title of the IPTV service scenario document should be aligned.