Page 3 - ETSI-Newsletter-Feb-2017
P. 3

Power Set to be Key Battleground for 5G Continued (from page 2)

       New Network Structures
       The way that 5G networks are
       constructed will be essentially different
       from the approach of previous
       generations. These new networks will
       rely much more on the deployment
       of pico, femto or moving cells, which
       will effectively mean that the user is
       brought a lot closer to the point of
       transmission and the power needed to
       transmit the signal will consequently
       be lowered. Utilization of the Cloud
       is also expected to be of great
       importance. Virtualization of network
       functions promises to deliver both
       increased flexibility and efficiency. This
       will mean that rather than transmission
       being the dominant component of
       overall power consumption, there will
       be a shift to the more manageable
       computational power dimension
       (though this will also present the
       industry with certain challenges).
       The implementation of massive MIMO   Figure 1: Global Mobile Traffic in Exabytes/Month [Source: Cisco]
       (multiple-input, multiple-output)
       transmission techniques will also prove   through to facets of functional design.
       to be advantageous - compensating    This will allow operators to obtain the
       path loss and enabling stronger signals   system-wide energy savings they need.
       while consuming less energy. This,
       along with adaptive beamforming,     As an organization working to define
       could help to counter the limited range   global standards that enable more
       of mm wavelength transmission (which   productive and environmentally
       will begin to be employed to boost data   sustainable technology developments,
       rates). Having enhanced the power    ETSI is focussing closely on energy
       performance of the underlying network   efficiency within the next generation
       technology, there will subsequently be   communication networks. ETSI has
       an opportunity to make greater use   recently embarked on an investigation
       of alternative energy sources, such   into possible new metrics for energy
       as photovoltaics, to supplement the   efficiency within 5G systems. The
       conventional power supply.           results are due to be published
                                            in a Technical Report towards the
        One of the most                     end of 2017. Meanwhile, 3GPP has
        significant factors here            been actively involved in a study of
        will be keeping the                 energy efficiency of mobile networks
                                            taking in the implications of various
        power consumption to an             deployment scenarios, operating
        absolute minimum.                   conditions and coordinated energy
                                            saving between different parts of the
       5G needs to furnish operators with   network. ETSI and 3GPP are also heavily  New Brochure:
       a business model that is sustainable   engaged in determining the exact
       in terms of the financial investment   system architecture and functional   ETSI Long Term
       required and the day-to-day running   requirements of the 5G standard and
       costs, as well as in relation to its long   methods of monitoring and controlling   Strategy 2016-2021
       term effect on the environment - so   power consumption will be at the heart
       that international legislative guidelines   of this.                      Our Long Term Strategy is developed by
       can be met. The technical obstacles                                       our members. It defines our Vision, our
       that operators face in respect to power   First published by European Energy   Mission and nine basic principles which
       efficiency will be challenging but are   Innovation, December 2016        constitute our core. It also outlines our
       not insurmountable. Improved energy                                       five strategic objectives
       efficiency needs to be a consideration            h  Being at the Heart of Digital
       of each constituent part of the                                           h  Being an Enabler of Standards
       proposed network technology, covering
       everything from how the system                                            h  Being Global
       architecture is implemented right                                         h  Being Versatile
                                                                                 h  Being Inclusive

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