74th meeting of WG SE - Bled

The 74th meeting of the ECC’s Spectrum Engineering working group (WG SE) was held last 26-30 September in Bled, Slovenia, attended by about 48 participants, including the observer from the European Communications Office (ECO) and industry and operator representatives.

The following document was approved, after the consultation phase:

  • ECC Report 253 on Compatibility studies for audio PMSE at 1492-1518 MHz and 1518-1525 MHz.

The following documents were adopted on a preliminary basis and forwarded for public consultation:

  • Draft ECC Report 246 on Wideband and Higher DC Short Range Devices in 870-875.8 MHz and 915.2-920.8 MHz (companion to ECC Report 200);
  • Draft ECC Report 257 on Compatibility studies between low power transmitters for animal tracking and other existing radiocommunication applications in the frequency band 401-403 MHz;
  • Draft ECC Report 258 on Guidelines on how to plan LoS MIMO for Point-to-Point Fixed Service Links;
  • Draft ECC Report 259 on Sharing and compatibility studies between Maritime Broadband Radio (MBR) in the 5850–5900 MHz frequency band and other systems;
  • Draft ECC Report 260 on Description of methodologies to estimate the technical impact of Wind Turbines on Fixed Radio Links;
  • Draft ECC Report 261 on Short Range Devices in the frequency range 862-870 MHz;
  • Draft ECC Report 262 on Studies related to surveillance radar equipment operating in the 76 to 77 GHz range for fixed transport infrastructure.

Project team 7 (PT SE7) is studying the introduction of long term evolution (LTE) technology in the 450-470 MHz band. However, due to a request from the Frequency Management working group (WG FM), this task was amended to include the 410-430 MHz band and to include narrowband technologies for the Internet of Things based on LTE and the latest technology for professional mobile radio.

PT SE7 is analysing the introduction of broadband systems for public protection and disaster relief in 410-430 MHz; progress in the studies was reported.

Through a request from WG FM, PT SE7 was also mandated to analyse cross-border coordination conditions involving code division multiple access and LTE.

Project team 19 (PT SE19) finished the studies on mobile broadband radio operation with a view to enabling connections between vessels and fixed stations on the open sea operating in the 5850-5900 MHz band. This study’s conclusions indicate the need to apply security distances to prevent interference in the systems/applications for broadband fixed access, geostationary orbit satellite fixed satellite service (Earth to space), intelligent transport systems (ITS) and fixed service.

PTSE19 also completed a report on implementation of multiple input multiple output (MIMO) in fixed service connections. The preliminary conclusions indicate that it is possible to implement MIMO as long as distances between antennas (diversity) are guaranteed. The study nevertheless also concludes that distances do not need to be fulfilled, with impact on the bit error rate. The study also presents the calculation methods for planning MIMO connections, considering antennas with two separate connections or with one single input single output connection. Finally, the parameters needed to be able to licence such connections are considered.

Project team 24 (PT SE24) completed the studies on modification of operating conditions for short range applications in the 863-870 MHz and 870-876 MHz bands and for broadband applications in the 870-876 MHz and 915-921 MHz bands.

PT SE24 was also mandated to study coexistence between various applications operating in vehicles in the 5725-5875 MHz band: ITS, telematic road transport systems and local radio network.

WG SE also approved a report containing measurements of radiocommunication services’ performance, specifically fixed service, in the presence of wind turbines.

The next WG SE meeting will be held on 23-27 January 2017 in Berlin.