Activity report 2018-2019

Technical Committee (TC) Environmental Engineering (EE)

Chairman: Beniamino Gorini, Nokia

Responsible for defining the equipment engineering, the bonding and grounding, the power supply interface and environmental aspects for telecommunication infrastructures and equipment.

ETSI’s Environmental Engineering committee (TC EE) manages various engineering aspects of telecommunication equipment in different types of installations. These include:

  • Environmental conditions: climatic, thermal, active substances, acoustic, etc. (dealt with in Working Group [WG] EE1).
  • Equipment practice: the physical requirements of racks, sub-racks and cabinets including thermal matters.
  • Power supply and grounding: power interface specifications, power and grounding distributions (dealt with in WG EE2).
  • Eco-environmental matters: energy efficiency, environmental impact analysis (including ‘Circular Economy’), alternative energy sources (dealt with in WG EEPS (Eco Environmental Product Standards)).
  • Environmental matters associated with Mobile Information and Communications Technologies (ICT) devices (dealt with in WG M-ICT).

Work in support of European Commission (EC) Mandate M/544 was completed with the revised European Standard (EN) on the eco-design requirements for network standby mode of interconnecting equipment of household and office equipment. This revision was needed to clarify test methods and address additional equipment.

The committee continued to work with CEN/CENELEC JTC10 for the deliverables in response to Mandate M/543 on material efficiency. A Technical Report (TR) on “Definition of approaches, concepts and metrics for Circular Economy” to support the Mandate M/543 was published in February 2018.

TC EE continued to develop standards in support of EC Mandate M/462 in collaboration with ETSI’s Access, Terminals, Transmission and Multiplexing (TC ATTM) and Cable (TC CABLE) committees. We completed new ENs for energy efficiency Key Performance Indicators (KPIs) for Radio Access Network equipment, for the application of Network Functions Virtualisation (NFV) in ICT networks and for servers. 

WG EEPS published three Technical Reports (TR) on the energy efficiency of Radio Access Networks. The topics covered by these TRs are: Study on methods and metrics to evaluate energy efficiency for future 5G systems, Best practice to assess energy performance of future Radio Access Network (RAN) deployment, Energy estimation method based on statistical approach of Mobile Networks.

Work on the measuring of the energy efficiency of wireless access network equipment progressed, taking into account the dynamic traffic loads that will bring to a new publication.

TC EE made good progress with an ES to define appropriate methods for NFV energy efficiency and on the extension of the ES on the ‘Green Abstraction Layer’ to NFV applications. This work is carried out in liaison with ETSI’s NFV Industry Specification Group (ISG NFV).

WG M-ICT continued work on a new TR on the analysis of possible methods for the assessment of the environmental impact of Smart Phones, with publication scheduled in 2019.

WG EE1 progressed on the revision of the ENs for environmental classification and tests for telecommunication equipment. In July 2018 the EN for the test methods for Stationary use at non-weather protected locations was published. The publication of the EN for equipment installed in weather-protected locations is expected in 2019 and in parallel will continue the work on the two ENs for underground location and portable use that should be sent for approval in 2019. These revisions clarify the applicability of tests and the performance criteria and takes into account the climate change parameters.

WG EE1 also completed the Technical Specification (TS) on liquid cooling for ICT equipment and a new TR on the study of test methods and the test severity of mechanical aspects for equipment installed on poles and towers.

WG EE2 continued its work on the series of standards addressing the requirements of the ICT equipment connected to 400 V DC or AC power source on which two new deliverables have been published: the new ES on Interfacing of renewable energy or distributed power sources to 400 V DC distribution systems and the new Technical Specification (TS) on Impact on ICT equipment architecture of multiple AC, -48 V DC or up to 400 V DC power inputs.

WG EE2 deliverables were prepared in co-operation with ITU Study Group 5. Another work item conducted with ITU-T SG5 is a new ES on the management of the migration of telecommunication site installations from existing -48 V DC power distribution to the new 400 V DC.

WG EE2 also revised two European Standard for equipment powered by 48 V DC and 230 V AC. These revisions are to clarify the test conditions and performance criteria. 

TC EE, together with ITU-T SG5, continued to work on three new TSs on the evolution of battery technology for use with stationary ICT and telecommunication equipment. This work will have implications for smart cities and other applications which rely on batteries used in conjunction with alternative power sources; publication is planned in 2019.

Look out for in 2019 – TC EE work in progress:

  • Revision to Harmonised Standard (EN) on powering of equipment in access network reverse powering handshake and 400 V DC remote powering on power cable and power back-up
  • EN on power supply interface at the input of Information and Communication Technology (ICT) equipment (Part 4: Up to 400 V DC and AC)
  • Revision to EN on environmental conditions and environmental tests for telecommunications equipment
  • ETSI Standard (ES) on measurement method for energy efficiency of Network Functions Virtualisation (NFV) in laboratory environment
  • EN on Energy Efficiency measurement methodology and metrics for servers.
  • Revision to EN on Power supply interface at the input of Information and Communication Technology (ICT) equipment
  • Revision to ES on Green Abstraction Layer (GAL); Power management capabilities of future energy telecommunication fixed network nodes / Enhanced Interface for power management in NFV environments
  • Revision to ES on assessment of mobile network energy efficiency in 5G
  • Revision to ES on metrics and measurement for energy efficiency of wireless access network equipment
  • TS on innovative energy storage technology for stationary use
  • Technical Report (TR) exploring challenges of developing product group-specific Product Environmental Footprint Category Rules for smartphones
  • Revision to ES on Monitoring and control interface for infrastructure equipment (power, cooling and building environment systems used in telecommunication networks)
  • Technical Specification on liquid cooling solutions for ICT equipment
  • ES on migration of Telecom/ICT sites to 400 V DC sources and distribution