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 Tuesday, 10 July 2007

At the June 2007 meeting of ITU-T SG15, a Recommendation that helps to future proof gigabit capable passive optical networks (G-PON) was consented.

The Recommendation, G.984.5, defines wavelength ranges which are reserved for additional service signals to be overlaid via wavelength-division multiplexing (WDM) in future gigabit capable passive optical networks (G-PON). The Recommendation also specifies the wavelength blocking filters to be implemented in optical network terminations (ONT). These filters, together with the use of the specified wavelength ranges, will enable network operators to upgrade G-PON systems without a break in service to their customers.’

Tuesday, 10 July 2007 15:50:49 (W. Europe Standard Time, UTC+01:00)  #     | 

At the June 2007 meeting of ITU-T SG15, work continued on a draft new Recommendation to develop a single international standard for home networking transceivers using any metallic media in the home – phoneline wiring, data cable (e.g. CAT5), coaxial cable or powerline wiring.

Household connectivity is growing rapidly with more and more electronic devices and networks within the home distributing and using digital information and media. In addition, remote control of lighting, heating, appliance-use and security systems attached to the home are making the "digital home" a reality.

International standards that enable interoperability and security in the field of home networking are seen as key to bringing value and versatility to consumers, making possible the use of diverse products, services and sources, and therefore accelerating market development.

Work in ITU-T is coordinated by the Joint Coordination Activity on Home Networking (JCA-HN). Topics covered across the 13 different Study Groups of ITU-T include digital rights management (DRM), phone-line networking (including co-ax), IPTV, interactive video, set top box architecture and cable modems.

The work on ITU-T Rec - - next generation home networking transceivers - has now attracted a critical mass of contributors/participants with nine companies submitting 20 contributions on various topics. It is anticipated that will be completed in 2008.

Also at the June 2007 meeting of ITU-T SG15, it was agreed to start work on a draft new Recommendation G.hnta on home network transport architecture. The Rec will give a generic architecture based on the NGN functional architecture described in Recommendation Y.2012 “Next Generation Networks – Frameworks and functional architecture models” It will describe a platform for the development of future home network standards. The draft Recommendation G.hnta is complementary to draft Recommendation H.ghna currently under development by SG16.

Tuesday, 10 July 2007 15:48:58 (W. Europe Standard Time, UTC+01:00)  #     | 
 Monday, 09 July 2007
Meeting of Study Group 17 - Security, languages and telecommunication software

Geneva, 19 - 28 September 2007

Registration Form

See TSB Collective-letter 7/17 for more information.

Study Group 17 Home

Monday, 09 July 2007 15:39:13 (W. Europe Standard Time, UTC+01:00)  #     | 
 Monday, 02 July 2007

A second standard in a new group of Recommendations from ITU-T's Study Group 15 extends the distance at which multi-vendor DWDM systems can be deployed from 80 to four or five hundred kilometres.

The first standard in the series gave network operators the ability to deploy multi-vendor dense wavelength division multiplexing (DWDM) systems in a metro environment. The new Recommendation extends this to cover regional environments by taking into account the use of optical amplifiers and their potential to create 'optical noise'.

WDM technology is used by the owners of optical fibres to maximise their capacity. The technology achieves this by simultaneously operating an optical fibre pair at more than one wavelength and uses optical amplification to increase transmission distances as well as optical add/drop multiplexers to increase the flexibility of the network. Since operators wish to maximize their cable plant investments and deploy increasingly bandwidth hungry services in a multi-vendor environment, standards development in this field is seen as crucial.

The Recommendation defines values for single-channel optical interface parameters of physical point-to-point and ring DWDM applications on single-mode optical fibres through the use of the "black-link" approach. The black-links covered by this follow-on Recommendation may contain optical amplifiers.

The transport network of most operators is based on the use of equipment from a variety of different vendors. Previously, for those parts of the network involving DWDM optical transmission, this has been achieved via the use of optical transponders which convert the single channel interfaces like those defined in ITU-T Recs G.957 G.691, G.693, G.959.1 into DWDM wavelengths suitable for the particular vendor’s proprietary system. With the optical interfaces standardized in new G.698.2 operators can directly connect a wide variety of equipment to the DWDM line system without the need for those additional short reach transmitter and receiver pair per channel (eliminating the transponders) with obvious associated cost savings.

Monday, 02 July 2007 08:36:16 (W. Europe Standard Time, UTC+01:00)  #     | 
 Thursday, 28 June 2007
Meetings of Study Group 2 - Operational aspects of service provision, networks and performance

Geneva, 30 October - 8 November 2007

Registration Form

See TSB Collective-letter 6/2 for more information.

Study Group 2 Home

Thursday, 28 June 2007 10:48:44 (W. Europe Standard Time, UTC+01:00)  #     | 
 Wednesday, 27 June 2007
Meetings of Study Group 4 - Telecommunication management

Geneva, 28 August - 7 September 2007

Registration Form

See TSB Collective-letter 6/4 for more information.

Study Group 4 Home

Wednesday, 27 June 2007 11:00:23 (W. Europe Standard Time, UTC+01:00)  #     |