ITU - Telecommunications Standardization Sector
STUDY GROUP 16
Circuit-Switched Network (CSN)
Multimedia Terminals and Systems Experts Group
_________________
Osaka Japan, 16-17 May 2000	Document  Q11-L-13d3
Filename:q11l13d3.rtf	

Question:	Q.11/16	
Source:	T. Geary, Rapporteur Q.11
Conexant Systems Inc.
P: +1 949 483-4092 / +1 714 446-9641  F: +1 949 483-6511 / +1 714 446-9642
Email: tom.geary@conexant.com	
Title:	draft Report of the SG16 Q.11 Experts meeting 16-17 May 2000	
Purpose	Information	
_____________________________
CONTENTS
0.0	GENERAL	1
0.1	Opening Session - Q.11	2
0.2	Agenda Review	2
0.3	Previous Meeting Reports	2
0.4	Reports of Ad hoc committees	2
0.5	Attendee List (Q11-L-TD1)	2
0.6	Incoming Correspondence	2
0.7	Patent Policy	2
0.8	Document introduction	2
1.0	SYSTEM DISCUSSIONS	2
1.1	H.324	2
1.2	H.320	2
2.0	MOBILE DISCUSSIONS	3
3.0	JOINT SESSIONS	3
3.1	Q.11 & Q.15	3
3.2	Q.11, Q.12, Q.13, Q.14 & Q.15	3
4.0	Q11 CLOSING SESSION	3
4.1	Outgoing documents	3
4.2	Meeting Report:	3
4.3	Plans for Future Work:	3
4.4	Ad Hoc committees	3
4.5	Q.11 Proposed Future Meetings:	4
4.5.1	Proposed Future Experts meeting agendas:	4
ANNEX A – ISSUES LIVING LIST	5

0.0	GENERAL
The Twelfth meeting ("L") of Q.11/16 Circuits switched network (CSN) multimedia systems and terminals experts met co-located with Q.12/16 – Q.15/16 Experts 15-19 May 2000, Osaka Japan with Q.11 Experts meeting held 16-17 May 2000.  This meeting was at the kind invitation of Group of Interested Organizations in Japan.  The meeting was attended by 7 members and there were 12 contributions (see document list Q11-L-00r1)
0.1	Opening Session - Q.11
The host provided details for the meeting facilities and explained the document distribution methodology using master electronic document files on a common LAN server.
At this meeting, Q.11 was provided excellent LAN and overhead projection services in their meeting room, thus eliminating the need for hard copy distribution.
0.2	Agenda Review
The draft agenda Q11-L-TD2 was accepted however it is noted that several changes were made during the meeting.
0.3	Previous Meeting Reports
The Geneva meeting report (TD116/2 of the meeting) was called to the groups attention.
0.4	Reports of Ad hoc committees
No activity to report this inter-meeting period.
0.5	Attendee List (Q11-L-TD1)
The sign in roster indicated 7 members were attending
0.6	Incoming Correspondence
The group took note of APC1756 a liaison from MPEG thanking us for the support.
0.7	Patent Policy
Members were reminded of the ITU patent policy and provided the URL for the information at ITU:
	http://www.itu.int/ITU-Databases/TSBPatent/
0.8	Document introduction
The document list (Q11-L-00) was reviewed, with a brief introduction of each document given.  (Two documents were added to the meeting as shown in Q11-L-00r1).
1.0	SYSTEM DISCUSSIONS
1.1	H.324
No contributions to this meeting.
1.2	H.320
Q11-L-10 - The group discussed the content of this contribution. Q11 experts recommended removing the statement in D.1 Scope and the Note in D.4.2 body text as noted in contribution, and suggested replacing the statement in the D.1 with the following text "H.324 Annex D terminals currently provide backwards compatibility with the installed base of H.320 terminals; …. and forward compatibility with H.324 Annex C terminals (Mobile)."
Q111-L-05 - The group reviewed the document and agreed it would be submitted to the Portland Q.11 experts meeting.  It was noted that the proliferation of additional capabilities being added to H.263 may not be able to be accommodated in the existing H.230 signaling structures and this may need to be extended in the future.  It was also noted that it may be appropriate to prioritize the usage of remaining code points to be used for features that will probably be widely used.  It was noted that there approximately 71 codes points remaining in Table A.1 of H.221 and 30 in Table 1 of H.230.
An Annex will added to the Q.11 meeting reports which will include a "living list" of open issues relative to the status of H.324 and H.320 terminals.
Q11-L-06 and Q11-L-07 - Draft text of future revisions of the existing H.221 and H.242 to incorporate changes agreed in implementers guides at the February 2000 meeting.  They are for information only at this time.
2.0	MOBILE DISCUSSIONS
Q11-L-08 - Draft text for H.324 Annex H the group reviewed the text and agreed that the editor will submit this text to the ITU-T TSB for publication as a white document prior to the 20 July 2000 deadline.
Q11-L-09 – The group supported section 2.1, 2.2 and  3 with minor revision in wording.  These changes are reflected in Q11-L-09r1.
Q11-L-09r1 The group reviewed the revised document and asked the editor to include it in the draft revised implementers guide for H.324.
3.0	JOINT SESSIONS
3.1	Q.11 & Q.15
Q15-J-30 - Clarification of H242/H245 Resolution Cap under Reference Re-sampling by a factor of 4.  The group voiced no direct opposition and it was suggested the interested members bring forth the proposed text for inclusion in an Implementers Guide for H.242 for review, either at the upcoming experts meetings or as a contribution to Geneva.
Q11-L-03(Q15-J-37) - Proposed changes to H.242 to include the new H.263++ features.  The group supported the contribution as written but with the understanding that there may be additional input prior to the Geneva meeting.
Q11-L-04(Q15-J-39) - Editorial corrections to the proposed text for the H.230 Implementers Guide (ref TD32/G).  The group supported the proposed changes.
Q11-L-10 - There was no opposition to the suggested work in this area.  Q11 experts recommended removing the statement in D.1 Scope and the Note in D.4.2 body text as noted in contribution, and suggested replacing the statement in the D.1 with the following text "H.324 Annex D terminals currently provide backwards compatibility with the installed base of H.320 terminals; …. and forward compatibility with H.324 Annex C terminals (Mobile)."
3.2	Q.11, Q.12, Q.13, Q.14 & Q.15
3.2.1	Coding Aspects
Planning to discontinue work on H.263 and focus on H.26L.  H.26L is expected to give a 50% bit rate savings at same quality level
3.2.2	System Aspects
Q15-J-17 - H.245 clarification  Presented and no opposition noted.
Q15-J-30 - Factor of 4 re-sampling in Annex P  Presented along with the results of discussion in Q.11/Q.15 joint meeting.
Q15-J-16, 55, 58, 52 Potential changes to H.245v7 to align with H.263++.
Q11-L-03(Q15-J-37) Potential changes to H.242 to align with H.263++.
Q11-L-10 - The contribution was briefly presented and the results of previous discussion in Q.11 and Q.11/Q.15 joint meetings.  There was not opposition noted in the joint meeting.
APC1761(Q15-J-61) – Annex I Uneven level Protection  Presented and not comments noted.
APC1841 – New redundancy method  This and the previous item were considered for future inclusion.
3.3	H.245
APC1785 – Change to Annex E for visualBackChannelReceive  The group supported the proposal.
APCTD30 (replacement for APC1787) – Liaison to SG8 identifying changes to be added to H.245v7 to assure compatibility of T38 packet transfer.
APC1790 – Accepted in Q.13.  The group supported the proposal.
APCTD19 – Proposes definition of ASN.1 syntax to be used in H.245
APC1867 – Capability Points for AAC and AC-3 audio  The proponents were asked to submit final contributions to the next experts meeting.
3.4	Future meetings
Support for the next experts meeting was agreed as planned.  The members were asked to consider an experts pre-meeting in November in Geneva.
4.0	Q11 CLOSING SESSION
4.1	Outgoing documents
There were no outgoing documents generated at this meeting.
4.2	Meeting Report
The draft Q.11 Meeting report, Q11-L-13d3 was generated and reviewed at this meeting.
4.3	Plans for Future Work:
Q.11 Recommendation Status
Recommendation	Editor	Determineed	Decision/
Approval	Comment	
H.324 Annex H (H.mml)	T. Suzuki	2/00	11/00	(Q11-L-08)	
Revised H.324 Series I/G	P. Luthi		11/00	(Q11-L-09r1)	
Revised H.320 Series I/G	P. Luthi		11/00	(Q11-L-05)	
Revision of H.221	P. Luthi	??/01	??/02	(Q11-L-06)	
Revision of H.230	P. Luthi	??/01	??/02		
Revision of H.242	P. Luthi	??/01	??/02	(Q11-L-07)	

4.4	Ad Hoc committees
No ad hoc committees were authorized at this meeting.
4.5	Q.11 Proposed Future Meetings:
DATE	TYPE	LOCATION	HOST	
24-25 August 2000	Q.11	Portland USA	Intel	
13-17 November 2000	SG16	Geneva	ITU	

4.5.1	Proposed Future Experts meeting agendas:
The agenda for the next Q.11 meeting will be:
– Review of revised H.324 Implementers Guide
– Coordination of signaling requirements for H.263++ in H.320 systems
– Review of revised H.320 Implementers Guide
– Review of final text H.324 Annex H Mobile Multilink
The Q.11 session adjourned at 16:15 Wednesday 17May 2000.

ANNEX A – ISSUES LIVING LIST
CSN TERMINALS AND MULTIMEDIA SYSTEMS

A.1	

Item	Recommendation	Ref Doc	Description	Status	Comments	
1	H.324 Annex D	Q11-L-10	Review status of H.320 versus H.324 Annex D	Q11 experts recommended removing the statement in D.1 Scope and the Note in D.4.2 body text as noted in contribution, and suggested replacing the statement in the D.1 with the following text "H.324 Annex D terminals currently provide backwards compatibility with the installed base of H.320 terminals; …. and forward compatibility with H.324 Annex C terminals (Mobile)."	Consider revision of H324 for determination in November 2000