Report of CJK 7th NGN-WG Meeting
October 11, 2006
1. Opening of the meeting
The 7th CJK NGN-WG meeting was held at Tokyo, Japan on October 10 and 11, 2006.
The meeting was driven by the new management team agreed by the last meeting. 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
With the slight change of document order under NGN-test bed issue, the agenda given
by CJK7_NGNWG7_01R2 proposed by the chairman 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.
4. Review of the last meeting result
The meeting report of the CJK 6th meeting was reviewed. It is given in
5. Editing activity of ITU-T NGN Draft Recommendations
NGN-WG-010: Mr. Hideo IMANAKA (TTC) summarized the achievement of CJK
editing activities so far and proposed continuing it. He also proposed determining the
priority of target documents for future CJK editing activity.
NGN-WG-002: Mr. Chae-sub LEE (TTA) also proposed continuing the drafting
activity. He raised a couple of open items to be confirmed before moving on to the
next phase, such as coverage of study area and relationship with other activities.
During the discussion, it was expressed the importance of protocol work including
QoS signalling. The meeting agreed to extend the scope of editing activity into
signalling and FMC aspects, which are covered by SGs 11 and 19. It was noted that
since some documents are targeted to complete at the next NGN-GSI meeting, such as
Y.CSF and Q.NNI_profile, they may be too urgent to be dealt by the editing activity.
A list of target documents was produced to show high interests from CJK point of
view. It is given in Annex B to the report. Highest priority was put in four draft
Recommendations such as Y.NGN-R2-Reqts, Y.123.qos, Y.mpm, and Q.NNI_profile.
The meeting agreed to put CJK efforts to progress identified documents as much as
possible. The list may be extended according to new inputs and results at the ITU-T
NGN-GSI meeting in October 2006. To establish common and detailed technical
views on identified draft Recommendations, the meeting agreed to have a specific
technical meeting in Geneva during ITU-T NGN-GSI time frame. Detailed meeting
schedule is given in Section of future meeting plan. After the ad-hoc meeting, virtual
meetings will be planned led by leaders responsible for each document.
Concern was raised about how to characterize Release 2. It was noted that, regardless
of Release, ongoing draft Recommendations should be respected.
6. Test bed activity
NGN-WG-005: Mr. Taesang Choi
• (TTA) made a report on ongoing NGN test bed activity. CCSA and TTA have
formed an engineering team, which has identified several test scenarios and chosen
possible sequence of tests. Preliminary network connectivity test has already
performed in September 2006. The first test is planned in November or December
and will be reported at the next 8th CJK NGN-WG meeting.
NGN-WG-003: Mr. Taesang Choi
(TTA) replied to the initial CCSA’s proposal on NGN test bed conditions. The reply
selects available scenarios which are mainly based on SIP terminal with two SIP
proxies. CCSA confirmed the replied URI schemes and codecs. TTA has a plan to
accommodate other terminals beyond SIP terminals in the near future.
NGN-WG-009: Ms Xueli Zhang (CCSA) introduced test cases and the description of
NGN test bed which had been proposed from CCSA to TTA. Based on the proposal,
CCSA and TTA made a progress on the arrangement of the test bed architecture and
specification of the test scenarios and items, which are described above.
7. IPTV issue
NGN-WG-013: Mr. Hideo IMANAKA (TTC) proposed IPTV-ad hoc activity in CJK
to concentrate on NGN-related issues to harmonize with NGN standardization. And he
requested that other issues, such as DRM, metadata, and coding, should not be
discussed in CJK IPTV-ad hoc group because there are few experts in CJK NGN-WG.
He also proposed organizing CJK editing teams to edit the deliverables of FG-IPTV,
with three candidate documents which are closely related to NGN.
NGN-WG-008: Mr. Chae-sub LEE (TTA) also proposed how to apply successful
editing activity to IPTV deliverables. His priority analysis of 13 candidate deliverables
is based on three criteria such as 1) urgency from market perspectives, 2) commonality
of interests among CJK, and 3) fundamental and framework nature of the deliverables.
The meeting agreed to cover all IPTV issues starting with six areas proposed by TTA,
and put higher priority on two NGN-related areas such as requirements and
architecture and network and control.
8. QoS Related NGN Technical issues
NGN-WG-011: Mr. Hideaki YAMADA (TTC) introduced a dynamic QoS control
scheme for session-oriented services based on RACF. He proposed a mechanism
based on RTCP and RTCP extensions to capture performance information of multiple
portions of a network. According to the information, a terminal is able to adapt media
traffic to improve or maintain performance.
NGN-WG-012: Following the previous contribution, Mr. Satoshi UEMURA (TTC)
clarified requirements for a terminal to react against available information obtained by
the proposed mechanism given in NGN-WG-011.
During the discussion, it was recognized that terminal behavior is a key factor of the
mechanism, and will be a subject of Release 2. It was recognized that they are useful
and worthwhile to study further.
9. NGN Test bed Future Issues
NGN-WG-007: Mr. Young-Wook Cha (TTA) introduced RACF functionality briefly
especially with the main focus given on the application of CJK NGN test bed. He
described several possible options regarding the selection of RACF functionality for
CJK NGN testing. And he proposed recommended options for the testing of RACF
over CJK NGN test bed.
Comments were made from CCSA that the mapping of RACF functionality into
physical network elements is an important issue to be identified and RACF protocol
standardization work is still going on in SG11 and it seems to be a little bit early to
discuss on testing.
Meeting agreed to continue the discussion and information exchanges on this topic in
the future meetings. TTA is also planned to bring a further detailed testing plan in the
NGN-WG-006: Mr. Hong-Shik Park (TTA) proposed setting up CJK NGN IPTV test
bed. In his proposal, he suggested two phases: SIP-based SD grade IPTV test bed and
IMS-based HD grade IPTV test bed. The specific time schedule hasn’t been described
this time but will be provided in a next meeting. Meeting feels that setting up such test
bed is still premature since the relevant standardization process is still on-going. This
is for further study and relevant contributions are invited.
NGN-WG-004R1: Mr. Hyungsoo Kim (TTA) raised the issue of performance
objective values for performance testing on CJK NGN test bed. Since CJK NGN test
bed covers three countries, coordination between domestic and international
performance objectives are necessary. TTA is planned to submit the enhanced version
in a next meeting. This is for further study and relevant contributions are invited.
10. Future meeting plan
The next NGN-WG meeting will be held hosted by TTA in Korea, on 5th and 6th of
The next NGN-WG ad-hoc meeting will be held at ITU-T building in Geneva, from
13:00-17:00 on Sunday, October 22nd of 2006 chaired by Mr. Naotaka MORITA. The
purpose of this ad-hoc meeting is to confirm the position of each country against
candidate draft Recommendations targeting to complete at the NGN-GSI meeting.
Another NGN-WG ad-hoc meeting will be held at ITU-T building in Geneva from
13:00 to 18:00 on Sunday, October 29th of 2006 chaired by Mr. Naotaka MORITA.
The purpose of this ad-hoc meeting is to establish common and detailed technical
views on the identified draft Recommendations given Annex B to this report.
The next IPTV ad-hoc meeting will be held at Lotte hotel in Busan, Korea, from 16:00
to 18:00 on Sunday, October 15th of 2006 chaired by Ms. Duo Liu.
11. 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 TTC for its excellent local arrangements.
The 7th CJK NGN WG Meeting Documents
Number Source Title Area
NGN-WG_001R2 TTC Agenda NGN-WG Chair
NGN-WG_002 TTA 2nd Phase for CJK NGN NGN
NGN-WG_003 TTA TTA’s Response to CCSA’s Test NGN-Testbed
NGN-WG_004 TTA Performance Objectives for NGN
performance testing on CJK
NGN-WG_005 TTA CJK NGN Testbed activity NGN-Testbed
NGN-WG_006 TTA Proposal for CJK NGN IPTV NGN-Testbed
NGN-WG_007 TTA RACF Considerations in CJK NGN-Testbed
NGN-WG_008 TTA Proposal for drafting group on NGN-IPTV
NGN-WG_009 CCSA Test cases proposal and NGN-Testbed
description of NGN Testbed
NGN-WG_010 TTC Report of CJK Editing team NGN
activities and proposal for new
organization for NGN release 2
NGN-WG_011R1 TTC A dynamic QoS control scheme NGN
for services based on RACF
NGN-WG_012R1 TTC Proposed requirement to CPE NGN
for dynamic QoS control
scheme based on RACF
NGN-WG_013 TTC Proposal for CJK collaboration NGN-IPTV
scope on FG-IPTV
NGN-WG_014 TTC List of Contributions to NGN- NGN
GSI from Japan
NGN-WG_015 TTC Recommendation list NGN
NGN-WG_016R1 WG Report of CJK 7th NGN-WG NGN
Annex B – High interests draft Recommendations from CJK’s point of view
Recommendati Q S Timi ITU Referenc Subject Editor Ch Jap Ko Com
on G ng priori es ina an rea mon
Y.ngn-account 2/1 1 04-2 H Requirements and framework allowing Taesang Choi H 1
3 3 007 accounting, charging and billing
capabilities in NGN
Y.NGN-R2- 2/1 1 09-2 H Requirements and capabilities for ITU-T Marco Carugi H H H 3
Reqts 3 3 007 Release 2
Y.ngn-mcastsf 2/1 1 09-2 H NGN multicast service framework Juyoung Park, H 1
3 3 007 Shin Gak Kang
Y.ngn-upt 2/1 1 04-2 M UPT service over NGN Niu Yingbin H 1
3 3 007
Y.ngn-rtconv 2/1 1 04-2 M IMS-based real time conversational Niu Yingbin, H 1
3 3 007 voice services over NGN Pan Quiling
Y.idserv-reqts 2/1 1 09-2 M NGN service requirements for ID-based Yong-Woon H 1
3 3 007 applications Kim,
Y.123.qos 4/1 1 04-2 H A QoS control architecture for Ethernet- Enhui Liu, H H 2
3 3 007 based IP access network Daoyan Yang
Y.e2eqos.1 4/1 1 12-2 H Requirements and framework for end- Li Mo H 1
3 3 007 to-end QoS architecture
Y.mpm 4/1 1 04-2 H Management of performance Taesang Choi, H H 2
3 3 007 measurement for NGN Daoyan Yang
Q.FMCReq 6/1 1 04-2 M FMC general requirements Baofeng Zhang H 1
3 9 007
Q.FMC-IMS 6/1 1 04-2 H Fixed-Mobile convergence with a Li Mo, Kees- H 1
3 9 007 common IMS session control domain den-Hallander
Q.FMC-PAU 6/1 1 04-2 H FMC service scenario by using PSTN as Wu Lin H 1
3 9 007 the fixed access network for UMTS
Y.ipv6multi 9/1 1 04-2 H Framework of IPv6 multi-homing for Yong Geun H 1
3 3 007 NGN Hong, Seok J
Y.ipv6req 9/1 1 04-2 H Service requirements and functional Jung Soo Park H 1
3 3 007 capabilities of Ipv6-based NGN
Y.ipv6sig 9/1 1 04-2 H Signaling requirements for QoS support Jun Kyun, Gyu H 1
3 3 007 in NGN using IPv6 Myoung Lee
Y.NGN 15/ 1 04-2 H NGN certificate management Martin Dolly H 1
Certificate 13 3 007
Y.SecMechani 15/ 1 04-2 H NGN Security mechanisms and Martin Dolly, H 1
sm 13 3 007 procedures Takashi Egawa
Y.NGN 15/ 1 04-2 H NGN Authentication Martin Dolly, H 1
Authentication 13 3 007 Ray P Singh
TRQ.ASI-REQ 2/1 1 Apr- N TD GEN/ Signalling Requirements at the interface Jinkyung H 1
1 1 07 11 396r1 between AS-FE and S-CSC-FE Hwang, KT,
Q.NNI-Profile 3/1 1 Nov HH TD NGN NNI signalling profile Takumi Ohba H H 2
1 1 -06 GEN-41
Q.UNI-Profile 3/1 1 Apr- H TD NGN UNI signalling profile Q.UNI-Profile H 1
1 1 07 GEN-44
Q.rcp1 (Rs) 5/1 1 Nov HH TD Resource control protocol – Protocol at H 1
1 1 -06 GEN-42 the Rs (ex-Gq') interface (Diameter
7 profile for CCI)
Q.rcp2 (Rp) 5/1 1 Nov HH TD Resource control protocol – Protocol at H 1
1 1 -06 GEN-43 the Rp interface
Q.rcp3.2 (Rw) 5/1 1 Apr- M TD Resource control protocol – H.248 Osamu H 1
1 1 07 GEN-43 Protocol at the Rw interface Kamatani
Q.rcp4.2 (Rc) 5/1 1 Apr- H TD Resource control protocol – SNMP Osamu H 1
1 1 07 GEN-43 Protocol at the Rc interface Kamatani