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 Monday, February 20, 2006

G.959.1, the Recommendation that increased the capacity for multi-vendor optical interfaces developed to exploit the demand for high capacity Internet routers (see press release), has been updated to help further reduce costs for operators. The use of forward error correction (FEC) as defined in ITU-T Rec. G.709 will allow operators to transport data more cost-effectively through the use of lower cost electro-optics.

 

FEC is a method of sending redundant information with the data in one-way communication in order to allow the receiver to reconstruct the data if there was an error in transmission.

 

Experts say that in the last few years they have seen a shift in demand from operators who are now looking to maximize return on investment rather than increase distance covered etc. The revision of this Recommendation addresses this need. 

 

This work forms part of ITU’s ongoing work in optical transport networks (OTN) which encourages a fair market for manufacturers and operators, and ultimately encourages better service for consumers. It has been developed with input from the Optical Interworking Forum (OIF).

 

Monday, February 20, 2006 9:44:25 AM (W. Europe Standard Time, UTC+01:00)  #     | 

ITU-T will publish the first ITU-T Recommendation in the area of free-space optics. FSO is an area dominated by proprietary solutions, the new Rec means that users of FSO systems will be able to co-locate FSO solutions provided by different manufacturers for the first time.

FSO systems use lasers or LEDs to transmit data between two points with line of sight up to 2km. Typically this means between the top of buildings. Data rates of up to 1.25 Gbps are available.

As well as use in fixed settings like between tall office buildings. FSO systems have proven useful in disaster relief where telecoms infrastructure has been damaged and a quick fix is necessary. Equally FSO systems are used where there is no existing infrastructure as a way of avoiding disruptive and expensive cable laying. They are spectrum license free and protocol independent so will happily carry Ethernet, SDH signals etc.

The ITU-T Rec. G.640 will allow the co-location of FSO systems without interference with each other. 

Monday, February 20, 2006 9:10:23 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Friday, February 17, 2006
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. This was the key conclusion of a successful World Standards Cooperation (WSC) workshop bringing together some 100 experts from industry, the academic community and standards developing organizations, in Geneva, Switzerland, on 2 and 3 February 2006.

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.

The Geneva event provided an overview of these technologies as well as an examination of standards that address access, services, performance, quality of service (QoS), electromagnetic interference, digital rights management (DRM), security issues and overall networking.

Representatives from more than 15 leading industry groups, such as DNLA, DSL Forum and Zigbee, called for closer cooperation between the WSC partners, standards developing organizations (SDOs) and industry consortia. They also agreed that similar events designed to allow for the open exchange of ideas should be held in the future, in view of improving coordination and avoiding duplication of work.  

ITU-T's Joint Co-ordination Activity on Home Networking JCA-HN was recognized by participants as an important vehicle for coordination. The JCA-HN was set up to harmonize work going on across ITU-T Study Groups and to identify what exactly needs to be standardized in the field aiming to produce a roadmap outlining this activity.

Houlin Zhao, Director, Telecommunication Standardization Bureau (TSB), ITU, wrapped up the workshop by reminding delegates of the history of successful cooperation between IEC, ITU and ISO. The three organizations, he said, are committed to promoting and harmonizing the international standardization system, strengthening cooperation among themselves and with all partners concerned. He encouraged the members of the three organizations to support efforts at the international level, as well as the national and company level.  

Opening the two-day event, IEC General Secretary Aharon Amit said that the market, innovation, safety and regulation and competition drive international standards. Chief technical officers, he said, were the best-placed people to decide what is needed and when and this allows the IEC to do its work. In short, Mr. Amit said, "we're seeking guidance from you on what we're doing, what we're doing well, what we're not doing well and what we should be doing."   

In his closing remarks, ISO Secretary-General, Alan Bryden indicated that: "At the recent World Economic Forum in Davos, convergence of information and communication technologies and services for the benefit of consumers was highlighted as a key development, as well as a manifestation of the knowledge revolution, at the centre of the 'creative imperative'". He added that "International Standards have a major role to play" and - referring to the work of IEC, ITU and ISO - "we, ourselves need to converge".

The two-day workshop reviewed the current state-of-the-art in home digital technology from a standardization perspective.  Representatives from 14 leading electronics manufacturers, 10 leading systems service providers, academics and standards bodies examined the situation and needs for standards in relation to:

· Ways in which digital services are delivered to the home;

· In-home networking;

· How content is managed;

· How equipment is managed;

· Best practices.

Emphasis was placed on trends concerning broadband technologies, the way to ensuring connectivity and interoperability of devices within home networks and on the development of many new application areas - for example, ways in which recent technology can offer non-intrusive monitoring of those with diagnosed medical conditions, or of the elderly.

The World Standards Cooperation (WSC) aims to reinforce, and promote the voluntary consensus based International Standards system of ISO, IEC and ITU.

 

Friday, February 17, 2006 5:00:12 PM (W. Europe Standard Time, UTC+01:00)  #     | 

Study Group 15 has consented a Recommendation that will address a key concern in the evolution to next generation networks (NGN).

With the proposed move to packet switched networks, carriers, mobile operators and system integrators all have a need to support time-division multiplexing (TDM) over packet networks. TDM, experts say, today forms all of the transmission network and a good part of the access network.

The role of this Rec - G.8261 - is to outline the requirements for the support of a crucial part of TDM's operation in packet networks. The Recommendation's authors say that without proper synchronization, applications such as mobile telephony simply will not work.

G.8261 analyses synchronization aspects in packet networks, with particular focus on the Ethernet, and outlines the minimum requirements for the synchronization function of network elements. In particular it focuses on the transport of synchronization information required for the transport of TDM signals over packet networks. The transport of SDH signals is for further study.

Friday, February 17, 2006 2:42:51 PM (W. Europe Standard Time, UTC+01:00)  #     | 

Next meeting of TAF - Tariff Group for Africa

Conakry, Guinea, 30-31 March 2006

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

TAF Group Home

Friday, February 17, 2006 11:35:27 AM (W. Europe Standard Time, UTC+01:00)  #     | 

Next meeting of Study Group 17 - Security, languages and telecommunication software

Jeju, Korea, 19-28 April 2006

Registration Form

See TSB Collective-letter 4/17 for more information.

Study Group 17 Home

Friday, February 17, 2006 11:31:08 AM (W. Europe Standard Time, UTC+01:00)  #     | 

Next meeting of Study Group 2 - Operational aspects of service provision, networks and performance

Geneva, 3 - 11 May 2006

Registration Form

See TSB Collective-letter 3/2 for more information.

Study Group 2 Home

Friday, February 17, 2006 10:40:52 AM (W. Europe Standard Time, UTC+01:00)  #     | 

The following files relative to AAP have been updated since 2006-02-15

Group : aap
updated :          2006-02-15 18:04:34      
title :          [030] AAP Announcement No. 30, 16 February 2006, (SG 2, 5, 17)
url :          http://www.itu.int/itudoc/itu-t/aap/announce/05-08/030.html
-------------------------------------------------------------
 
Note : This is an automatic message for ITU-T/TSB Alternative Approval Process

 - For further questions, please contact TSB EDH at tsbedh@itu.int
 - For documentation, go to http://www.itu.int/ITU-T/aap/index.html
 - Comments on Recommendations under AAP should be submitted by filling the appropriate forms in each Study Group AAP web page and sent to the relevant Study Group email address

More on AAP

Friday, February 17, 2006 10:27:01 AM (W. Europe Standard Time, UTC+01:00)  #     | 

January saw a gathering of hundreds of NGN experts in Geneva for the first NGN-GSI (global standards initiative) event. Good progress was reported in several key areas particularly in the important area of functional architecture and requirements for resource and admission control functions (RACF) in NGNs. The Recommendation covering RACF is said to be stable and is expected to be consented at the July GSI event.

The January event comprised three full Study Group meetings (11, 13 and 19). Experts from various other Study Groups were in attendance for this first meeting of the GSI following its launch in November, 2005.

Study Group 13, the lead for NGN work, alone saw over 250 contributions, many a result of the work of the Focus Group on NGN. SG 13 saw three new Recommendations consented, see separate stories (Y.1731, Y.1452, Y.1453).

Study Group 11 reported that 50 contributions were received and launched work on an NGN Protocol Set. According to SG documents ITU-T NGN-Protocol Set 1 will define protocols for the support of:

· Network to Network Interface (NNI) session control;

· User to network Interface (UNI) session control;

· Resource Control Interfaces;

· Network Attachment Interfaces.

Protocol Set 1 is targeted for completion by the end of 2006.

The chair of Study Group 19 reported good progress in the area of FMC (fixed-mobile convergence).  

It is expected that many other of the outputs of the Focus Group on NGN will be consented at this July meeting. Among them will be a Recommendation dealing with performance, management and measurement, another key area in NGN. See the work programmes for the various Study Groups involved in NGN for a full list.

Friday, February 17, 2006 8:50:50 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Wednesday, February 08, 2006

A Recommendation consented at the January meeting of Study Group 13 allows enterprises to convert multiple voice streams or VoIP flows to IP packets, enabling them to be trunked to their destination over a packet switched infrastructure, rather than dedicated circuit-switched infrastructure. In this way businesses can reduce costs and benefit from the increased efficiency and speed of IP networks.

Rec Y.1452 gives the required functions and procedures necessary for support of  multiplexed narrowband voice services by IP networks. It specifies the required protocols and the operation of the interworking function.

 

 

Wednesday, February 08, 2006 10:05:27 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Monday, February 06, 2006

Study Group 13 has consented a new Recommendation that will give support for a widely deployed network technology in IP-based NGNs.

The Recommendation Y.1453 addresses required functions for network interworking between time division multiplexing (TDM) and IP networks.

TDM is a way to transmit multiple subscribers’ calls along the same transmission medium at the same time. Given that is a very widely used technology in existing telecommunications networks its continued support in NGN is imperative.

Y.1453 addresses "user plane internetworking mechanisms, connection multiplexing and procedures (for interworking)".

 

Monday, February 06, 2006 2:21:23 PM (W. Europe Standard Time, UTC+01:00)  #     | 

Study Group 13 will start work on a new topic (Question) relating to commercial off-the-shelf software (COTS).

COTS solutions are seen as an efficient way to reduce operating costs, but a lack of standards has kept costs high for licensing, adapting and integrating these components.

The title of the new Question will be Requirements and framework for enabling COTS components in an open environment. The aim is to outline the open interfaces and standards required to deploy COTS solutions in NGNs.

According to the text of the Question: “Guidance is required to ensure that COTS components will allow for creation of open and integrated communications platforms consistent with open (public and non-proprietary) standards  such that they will accelerate deployment of NGN infrastructure and services. It is necessary to define a common approach that helps to navigate through the appropriate interfaces and options to deliver an open and integrated communications platform using these standards.”

The Question was set up following a proposal from the Focus Group, The Open Communications Architecture Forum (OCAF). A Rapporteur, Johannes Prade, has been provisionally appointed to lead this work.

A review by the Telecommunication Standardization Advisory Group (TSAG) is necessary to complete the formal approval of the Question at the next Study Group 13 meeting in July 2006, but work in the area is ongoing and will continue as normal.

At the same meeting of SG 13, OCAF submitted two draft Recommendations, The carrier grade open environment reference model and Carrier Grade Open Environment Components. It is expected that these will be sent for consent at SG 13’s next meeting.

 

 

Monday, February 06, 2006 2:18:27 PM (W. Europe Standard Time, UTC+01:00)  #     | 

New JCA-HN document: Results of WSC workshop on 'Digital technologies in the home' (Geneva, 2-3 February, 2006)

More on JCA-HN

TIES account required to access the JCA-HN documents.

Monday, February 06, 2006 12:30:15 PM (W. Europe Standard Time, UTC+01:00)  #     | 

Next meeting of Study Group 16 - Multimedia terminals, systems and applications

Geneva, 3-13 April 2006

Registration Form

See TSB Collective-letter 3/16 for more information.

Study Group 16 Home

Monday, February 06, 2006 12:18:42 PM (W. Europe Standard Time, UTC+01:00)  #     | 

A new ITU-T standard (Recommendation) will allow operators offering Ethernet services to use operations, administration, and maintenance (OAM) mechanisms to facilitate network operation and troubleshooting.

Given that performance management has been cited as a major concern of operators looking at Ethernet as an end-to-end solution, and that OAM features are not standard in Ethernet, it is seen as crucial to provide this facility. Standards-based OAM features that will allow for interoperability between different vendors are seen as a requirement for carriers adopting Ethernet on a wide scale. Experts say that operator deployments may start in 2007.

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. Equally this OAM functionality may be deployed in a local area network (LAN).

The ITU-T Recommendation, Y.1731 consented at the recent meeting of Study Group 13, identifies the OAM functions which are needed to allow fault management (fault localization, defect detection, etc.) and performance monitoring (error counts, delay measurement, etc.) in an Ethernet network. With regards to performance monitoring, the Recommendation only addresses point to point connectivity today, says Gilles Joncour, ITU-T Rapporteur for the Recommendation, (multi)point to multipoint will be the next step.

Joncour gives some more detail: ‘’Y.1731 also specifies the so called OAM PDUs (protocol data units) which constitute the payload of the Ethernet OAM frames. The content (fields) of the PDUs vary according to the function(s) they correspond to. Y.1731 does not specify the processes associated to the sending, reception and analysis (of the content) of the OAM frames/PDUs. This will be part of another Recommendation (G.8021), from Study Group 15. Y.1731 specifies methods for measuring sample values of parameters identified for monitoring the performance of Ethernet networks. It does not deal with the integration of those values over a period of time and the use of such results, when applicable for defect detection. This will also be done in G.8021.”

Recommendation Y.1713 gives user-plane OAM functionality in Ethernet networks. The architectural basis for this Recommendation is the Ethernet specification G.8010. A previous Recommendation Y.1730 served as a prelude to Y.1731 outlining the OAM requirements of operators. Joncour says that Y.1731 was developed in close collaboration with the Institute of Electrical and Electronics Engineers (IEEE) group 802.1. This group is also preparing a standard (802.1ag - Connectivity Fault Management) devoted to Ethernet OAM aspects. IEEE 802.1ag defines a subset of the functions/PDUs described in Y.1731. Regular communications between the two groups ensured alignment of the description of the common features.  

Monday, February 06, 2006 9:08:27 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Friday, February 03, 2006

With the agreement of the TSAG meeting 14-18 March 2005, a Joint Coordination Activity on Home Networking (JCA-HN) was established. Mr. Andrew Nunn (BT, UK) was appointed as the Convenor of this activity.

The scope of the JCA-HN was decided following a meeting held immediately after the ITU-T workshop Opportunities and Challenges in Home Networking, 13 – 14 October 2005, Geneva and discussions at the TSAG meeting 7-11 November 2005. The name “Home Network Initiative” will be used to describe work in this field spanning ITU-T Study Groups.

JCA-HN will:

  • Co-ordinate the Home Network Initiative activity across all the relevant ITU-T Study Groups (e.g. currently ITU-T SGs 4, 5, 6, 9, 12, 13, 15, 16, 17) and liaise with relevant ITU-R SGs (currently, SGs 1 and 6).
  • Seek cooperation from external bodies working in the field and disseminate information received from these bodies to the relevant ITU-T Study Groups.
  • Identify what should be standardized by ITU-T
  • Prepare a roadmap for this standardization activity

More on JCA-HN

Friday, February 03, 2006 5:42:16 PM (W. Europe Standard Time, UTC+01:00)  #     |