July 2010 |
March 2010 |
Oct 2009 |
Executive summary of the SG 9 meeting
(ITU Headquarters from 2-6 February 2009)
The first meeting of Study Group 9 was attended by 45 delegates from 17
Following WTSA-08 instructions (žB.2, Annex B to WTSA-08 Resolution 2), SG 9
had two joint plenary sessions with SG 16 and 3 joint experts meetings for the
Questions of common interest.
1.Approval of new Chairman of Study Group 9
The appointment of Mr. A. Webster as the new Chairman of SG 9 was announced
by TSB Circular 10 (13 January 2009) pending SG9’s agreement at this meeting.
The meeting approved the appointment.
2. Appointment of
Rapporteurs for Study Group 9 Questions and
3.1 List of determined new Recommendations (6 February 2009)
of Responsible person
|J.261 (J.preffr )
||Framework for implementing
preferential telecommunications in IPCablecom and IPCablecom2 networks
authentication in preferential telecommunications over IPCablecom2
||Specification for priority
in preferential telecommunications over IPCablecom2 networks
3.2 Draft Recommendations planned to be presented for consent at the next
of Responsible person
||IPTV Client Control
||IPTV Client Provisioning,
Activation, Configuration, and Management Interface Definition
||Perceptual video quality
measurement techniques for digital cable television in the presence of a
||Reference Algorithm for
Computing Peak Signal to Noise Ratio (PSNR) of a Processed Video
Sequence with Constant Spatial Shifts and a Constant Delay
||Perceptual video quality
measurement techniques for digital cable television in the absence of
||Functional requirements for
Delivery Platform for television and associated interactive services
4. Proposed revision of Question 12/9
The revision of Question 12/9 was proposed in order to
include the measurement of 3D video quality as 3D programs and 3D games are
expected to become more widely available in the future.
It was decided to send a Liaison Statement to TSAG (see TD3) for endorsement.
The revised Q12/9 is expected to be approved at the next meeting in October
5. Collaboration with Study Group 16
At their Joint Plenary meeting Study Group 9 and Study Group 16 agreed upon
the working methods on collaboration activities given on the
6. Future meetings
6.1 Next Study Group 9 meeting
Following agreement at the last Joint meeting of SG 9 and SG 16, it was
agreed that the next meeting will start on the same day and tentative dates were
Posterior note by TSB: Due to a lack of available meeting rooms,
the new planned dates will be from 26 to 30 October 2009
(Geneva) for Study Group 9 and 26 October – 6 November 2009 for
Study Group 16.
6.2 Interim meetings of Rapporteur Groups
The meetings of Rapporteur Groups planned for the interim period before the
next meeting of the Study Group are detailed in the table below.
Planned interim activities
9/9 and 10/9
progress work on draft Recommendations:
J.iptvclientcntrl, J.iptvclientpacm series, J.rg-req, J.lasdp-req and
Collocated with WP2/16
J.redref, J.vqhdtv, J.noref, J.bitvqm
* This meeting was proposed after the February meeting and was
circulated to the SG 9 email reflector
7. Summary reports from WG Chairmen
Working Group 1 - Voice and video IP applications over cable television
Chairman: Gale Lightfoot Jr.
WG 1 (Q8/9) prepared 3 new draft Recommendations for TAP and 2 draft new
Recommendations to progress for consent at the next SG 9 meeting.
The three draft new Recommendations for TAP addressed the support of
preferential telecommunications service over IPCablecom networks. J.261 is a
framework applicable to both IPCablecom and IPCablecom2 networks and forms the
basis for the specifications in the new Recommendations J.262 and J.263. The
framework addresses two key areas of the requirements identified in J.260:
priority and authentication. Recommendation J.262 defines the specification for
authentication and J.263 defines the specification for priority over IPCablecom2
networks. Future work is planned for the specifications over IPCablecom
In the IPTV area, joint meetings were held with SG 16 for 2 documents
addressing the interfaces between the Customer Network and Operator Network and
between the Customer Network and Operations Support Systems. These interfaces
are identified in J.700. These two documents are planned to be considered for
consent at the next SG 9 meeting in October 2009.
Working Group 3 – Transmission of television and sound program signal for
primary, secondary distribution and over optical networks, and digital program
delivery controls in compressed bit streams
Chairman: Shigeyuki Sakazawa
A new study item to address the transmission system and data format to be
used for free view point television (FTV) was agreed. Co-ordinating with the
MPEG group any duplication in work will be addressed by the members. Work began
on a new draft Recommendation J.ftvdf.
The last call comment on draft J.286, Seamless splicing for heterogeneous
MPEG-2/H.264 bit streams was addressed and a revised version was produced
with one remaining comment to be resolved.
Working Group 4 – Methods to deliver multi-media services over IP networks
for advanced service platform and methods for conditional access against
unauthorized copying and re-distribution
Chairman: Tomohiko Takahashi
A new draft Recommendation J,sdp-req, "Functional requirements for Delivery
Platform for television and associated interactive services" was developed
incorporating comments received during the joint Rapporteurs’ meeting with
Q13/16. This Recommendation is a joint effort with WG 9. J.sdp-req was updated
by including the suggestion from SG 16 to introduce a local platform on the home
network to facilitate the delivery of advance applications and services by the
cable operator or a third party. This recommendation is planned to be submitted
for consent at the next SG 9 meeting in October 2009.
The draft will further clarify the relationship of this draft with other
Working Group 5 – Measurements and control of Quality of Service (QoS) for
television transmission and objective and subjective methods for evaluating
perceptual audio visual quality in multi-media services
Chairmen: David Hands and Chulhee Lee
Two new draft Recommendations J.refdef, "Perceptual video quality measurement
techniques for digital cable television in the presence of a reduced reference"
and J.ra-psnr, "Reference Algorithm for computing Peak Signal to Noise Ratio (PSNR)
of a Processed Video Sequence with Constant Spatial Shifts and a Constant Delay"
were updated and planned to be submitted for consent for the next SG 9 meeting
in October 2009. J.refdef was updated by including the models from Yonsei
University, NTIA and NEC as annexes. Further updates will be included for the
models from Yonsei University and NEC with a functional description of the
algorithm. J.ra-psnr was updated to include a proposed method for calibration
sequences prior to calculating the PSNR.
The new draft Recommendation J.noref, "Perpetual video quality measurement
technique for digital cable television in the absence of reference" was updated
and planned for consent submission in 2010.
Working Group 6 –Work Programme, Questions, Liaisons
Chairman: Satoshi Miyaji
The work program was reviewed and revised. All liaisons addressed to the
Study Group as a whole were reviewed and replies were prepared as appropriate.
Working Group 8 – Transmission of Large Screen Digital Imagery programmes for
contribution and distribution purposes
Chairman: Shigeyuki Sakazawa
The group discussed the requirements for real time transmission of exLSDI and
requested input from members on a system architecture utilizing existing video
coding standard. This work is to be included as future Recommendation.
Working Group 9 – Functional requirements for a universal integrated receiver
or set-top box for the reception of advanced content distribution services and
the extension of network-based content distribution services over broadband in
Chairman: Mayumi Matsumoto
Two new draft Recommendations J.rg-req, "A Residential Gateway Requirement to
support interactive services for Hybtrid Terminal Device" and J.lasdp-req,
"Functional and Application Programming Interface Requirements for Local
Application and Service Delivery Platform (LASDP) for Cable Networks" were
updated and further work to enhance the documents is planned before the next SG