Page 13 - Annual-Report-201704
P. 13

Broadband Radio Access Networks                     In addition to finalising 26 new or revised ENs for compliance
              In 2016 our Broadband Radio Access Networks committee   with the RED, the primary focus of our Satellite Earth Stations
              (TC BRAN) completed two Harmonised Standards for direct   and Systems committee (TC SES) in 2016 was on standards
              air-to-ground communications systems. We revised our   to enable high speed Internet access to fixed terminals or
              Harmonised Standard for RLANs operating in the 5 GHz   terminals on the move, whether in an aircraft, on board a
              frequency band, including new technologies and addressing   ship or in a vehicle. We revised our Harmonised Standard
              the need for a common sharing mechanism to achieve   for mobile earth stations operating in the 1 980 - 2 010 MHz
              equal and fair access between various RLAN technologies.   (earth-to-space) and 2 170 - 2 200 MHz (space-to-earth)
              We updated our Harmonised Standard on Wireless Access   frequency bands. Good progress was made with a new EN
              Systems (WAS)/RLAN equipment operating in the 60 GHz   on GNSS receivers, and we began revising our EN on radio
              band, adding a Listen Before Talk mechanism to ensure   frequency and modulation for the Telemetry, Command and
              co-existence with other WAS/RLAN equipment operating in   Ranging (TCR) of geostationary communications satellites.
              the same band. We made good progress with a new version
              of the Harmonised Standard on the use of White Space   We published guidelines for the use of the Satellite
              devices for WAS operating in the 470 - 790 MHz TV broadcast   Independent Service Access Point in Broadband Satellite
              band, which will include improved test methods and updated   Multimedia and made good progress defining a multi-
              emission classes.                                   link routing scheme in hybrid access networks with
                                                                  heterogeneous links, with the aim of delivering a high speed
              We began updating our Harmonised Standard on WAS    broadband service.
              5,8 GHz fixed broadband data transmitting systems, including
              receiver parameters and Dynamic Frequency Selection user   Other work addressed Single-Carrier Frequency-Division
              access restrictions. Work continued on the preparation of   Multiple Access based radio waveform technology for the
              three new TRs to support the possible extension of the   Ku/Ka band satellite service and updating of our technical
              current 5 GHz frequency allocation for RLANs. We initiated a   analysis of spread spectrum solutions for the TCR of
              study into the central co-ordination of RLANs operating in the   geostationary communications satellites.
              5 GHz frequency band.
                                                                  We also continued with the updating of our TS on GNSS-
                                                                  based location systems, and published new parts related to
              Ultra Wide Band                                     performance testing and the requirements for location data
                                                                  exchange protocols.
              We completed our investigation into the technical
              requirements, parameters and measurement procedures   We began to update our multipart TS on geostationary
              now required under the RED, in preparation for updating our   satellite-mobile radio interface specifications for the Third
              Harmonised Standards on Ultra Wide Band (UWB), and a TS   Generation Satellite Packet Radio Service. A TR on the
              was published at the beginning of 2016. Based on this work,   characterisation of antenna performance for geostationary
              we produced a new standard on measurement techniques.
                                                                  satellite mobile applications was published in April.
              We completed new versions of our two Harmonised     We completed an early draft of a TR on the seamless
              Standards on tank level probing radar and local positioning   integration of satellite and/or High Altitude Platform Station
              radar, and produced two additional TSs on time domain-  systems into 5G systems.
              based peak power for UWB and the RF conformance testing
              of radar level gauging applications in still pipes.

              Four parts of the five-part Harmonised Standard for UWB
              were completed in 2016; good progress was made with the
              final part, on UWB on board aircraft. In August we published
              the third part of a multipart TR on UWB signal characteristics,
              describing the various UWB regulations in place in different
              parts of the world.

              Work progressed well with two new SRdocs, on UWB in
              medical applications and on amended mitigation techniques
              for UWB. Work on an SRdoc on UWB-based vehicular access
              systems was completed in June.


              Satellite Communications
              Satellite technology is an important delivery platform for
              diverse services such as direct-to-home TV and mobile, high-
              speed Internet access and location services. It is particularly
              useful for rural and outlying regions, where it is difficult to
              deploy other systems on a commercial basis, and therefore
              plays a key role in ensuring that all European citizens are able
              to access high quality information services.




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