International Telecommunication Union   ITU
 
 
Site Map Contact us Print Version
 Monday, February 05, 2007

ITU and the IEEE will hold a workshop on carrier-class Ethernet, 31 May- 1 June.

Much work has been done in both organisations to progress Ethernet, developed as an enterprise technology, into a carrier service. The event will focus on opportunities for further collaboration.

Long-recognized as the ubiquitous LAN technology, Ethernet is now seeing increased attention as a carrier-grade service. In part this is due to the convenience of being able to simply provide end-to-end service, but also carriers can realize savings both in terms of capital and operational expenditure.

Ethernet services are becoming popular because they allow carriers to offer considerably improved flexibility to customers through a much simpler and lower cost interface. Ethernet allows users to specify exactly how much bandwidth they want between the 10Mbit/s and 1Gbit/s range currently offered. Further, Ethernet provides reduced operation complexity and improved scalability for carriers. And as operators look to NGN and the use of the Internet Protocol (IP), Ethernet is seen as the best fit, especially given the rise of such services as IP VPNs, VLANs and dedicated Internet access.

The event will start with an overview of the standards work from ITU-T and IEEE and will then drill down into detail with sessions focusing on: Ethernet based and Ethernet capable access networks; Ethernet network transport; Ethernet Bridging architecture; Ethernet OAM and management; Ethernet QoS, timing and synchronization. A closing session will bring together reports from all of the session chairs in order to identify the direction of future work.

Monday, February 05, 2007 1:02:41 PM (W. Europe Standard Time, UTC+01:00)  #     | 
 Wednesday, January 31, 2007
A new Recommendation from SG12 acts as a performance planning tool for videophone applications taking into account the effects of video as well as voice quality. The computational model described is for point-to-point interactive videophone applications including dedicated videophone terminals, desktop or laptop PCs, PDAs and mobile phones over IP networks.

Recommendation G.1070 gives an algorithm that estimates videophone quality in terms of quality of experience/quality of service (QoE/QoS). The model is designed to be used by QoE/QoS planners to help ensure end-to-end user satisfaction and to avoid over-engineering at the application, terminal, and network layers.

Wednesday, January 31, 2007 4:35:11 PM (W. Europe Standard Time, UTC+01:00)  #     | 
Study Group 12 consented a new Recommendation that provides a way to give consistency to performance measurements in high layer protocols such as FTP, HTTP etc.

The Recommendation, ITU-T Recommendation Y.1562, may be used by service providers in the planning, development, and assessment of IP service to check that it meets user performance needs; by equipment manufacturers to give performance information that will affect equipment design; and by end users in evaluating higher layer protocol service performance.

Wednesday, January 31, 2007 4:34:10 PM (W. Europe Standard Time, UTC+01:00)  #     | 
A Recommendation that ensures that sound levels between various devices are harmonized in order that listening quality is not degraded was amended at Study Group 12’s January meeting.

The amendment takes into account the transmission characteristics for headsets and hands free terminals. The original Recommendation – P.313 - provides audio performance requirements for portable digital cordless and mobile handsets, headset and loudspeaker terminals.

Specifications for car mounted hands free terminals will be treated in a new Recommendation in progress and also under study in the Focus Group - From/In/To Cars Communication.

Wednesday, January 31, 2007 4:33:13 PM (W. Europe Standard Time, UTC+01:00)  #     | 
A revised workplan for some of the Questions in Study Group 12 will include specific mention of IPTV Quality of Experience (QoE) and Quality of Service (QoS).

The latest meeting of Study Group 12, Geneva, January, also saw agreement on a definition for QoE. This, experts said, is particularly important given the inclusion of QoE in the definition of IPTV agreed by the ITU-T IPTV Focus Group. (See previous story).

Quality of Experience (QoE)

The overall acceptability of an application or service, as perceived subjectively by the end-user.

NOTES

1     Quality of Experience includes the complete end-to-end system effects (client, terminal, network, services infrastructure, etc).

2     Overall acceptability may be influenced by user expectations and context.


Study Group 12 Vice Chair, Chuck Dvorak, said that he expects that IPTV and other multimedia QoS and QoE issues will see increasing attention in SG12 moving forward.

Dvorak also said that he expects that the non-transport aspects of networks and services, for example call processing performance, will also receive more attention. Additionally he says that he expects SG12 will take a closer look at how to better address the needs of developing countries in terms of QoS.

Wednesday, January 31, 2007 3:32:31 PM (W. Europe Standard Time, UTC+01:00)  #     | 

Study Group 16 - Multimedia terminals, systems and applications

Working Party 3/16 Meeting

Geneva, 30 March 2007

Registration Form

See TSB Collective-letter 6/16 for more information.

Wednesday, January 31, 2007 11:24:26 AM (W. Europe Standard Time, UTC+01:00)  #     | 

Study Group 17 - Security, languages and telecommunication software

Working Parties 1, 2 and 3/17 Meetings

Geneva, 20, 16-20, 18-20 April 2007, respectively

Registration Form

See TSB Collective-letter 6/17 for more information.

Wednesday, January 31, 2007 11:21:02 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Tuesday, January 30, 2007
Representatives of the car industry joined with more traditional ITU-T members at the first meeting of the Focus Group From/In/To Car Communication.

The Focus Group meeting in Geneva, January, worked on specifications that will enhance communications in vehicles. Using as a starting point a specification developed by the German Association of the Automotive Industry (VDA) the Focus Group is looking to improve a draft Recommendation – P.Carhft – under development by ITU-T’s Study Group 12. The Focus Group concept allows for non-members, in this case the auto industry to participate.

A first priority is to deal with speakerphone audio quality, aiming to provide a specification that will help to improve the speech- and sound - quality between different devices. Second priority is requirements for headsets including wireless. Chairman of the group, Hans Gierlich of Head Acoustics noted also that a major problem for the car industry is car-to-car communications.

While first concentrating on narrowband speech (3.4kHz), the group will eventually move into better quality - wideband (8kHz). Input is also required in the area of testing for interaction between the network and hands-free terminals. In addition speech recognition will be addressed.

Participating companies included Alcatel-Lucent, Avaya, DaimlerChrysler, France Telecom, Harman/Becker, Head Acoustics, Mitsubushi, Nortel and Volkswagen.

A second FG meeting hosted by HARMAN/BECKER Automotive Systems is planned for March 15 in Ulm, Germany following the ITU, ISO and IEC event, The Fully Networked Car, Information and Communication Technologies in Motor Vehicles. The event taking place at the Geneva Motor Show will review and examine the implications of the latest developments in this fast-moving market. A significant value-add will be an exhibition showcasing the latest technologies in the field.

 

Tuesday, January 30, 2007 5:30:11 PM (W. Europe Standard Time, UTC+01:00)  #     | 
 Thursday, January 25, 2007

Lightwave Europe has recently published an article on ITU-T Rec. G.655. The standard extends the use of fibre previously used mainly in core networks to metropolitan or regional networks. Crucially it also has the potential to greatly reduce operating costs for network providers.

See Lightwave’s story here.

See ITU-T Newslog entry here.

 

Thursday, January 25, 2007 3:59:46 PM (W. Europe Standard Time, UTC+01:00)  #     | 
 Tuesday, January 23, 2007

At Study Group 9’s last meeting: Tokyo, 2-6 October, 2006, Mayumi Matsumoto, Rapporteur for Q.5/9 made a short video giving an excellent introduction to the Study Group’s work.

The movie contains footage of a demonstration of technologies for emerging broadband services in the home including interviews with some of the exhibitors.

It’s a unique insight into a Study Group meeting and the events surrounding it. Watch it here.


Tuesday, January 23, 2007 4:53:31 PM (W. Europe Standard Time, UTC+01:00)  #     |