WG FM supported the view of FM PT 48 that, by taking into account the definitions in the ITU Radio Regulations, an allocation either to the mobile service (without the exclusion of the aeronautical mobile service) or to the aeronautical mobile service is also appropriate for a Broadband DA2GC system.
WG FM had asked WG SE and ECC PT 1 during its meeting in Luxembourg to study the frequency bands 2400-2483.5 MHz, 5855-5875 MHz, 1670-1675 MHz / 1800-1805 MHz and 3400-3600 MHz. It had also been indicated by WG FM that FM PT 48 would provide additional information in order to support the studies. That was done by FM PT 48 based on the outcome of the second meeting.
WG FM also supported the categorisation into four categories as proposed by the project team in principle (Annex 5 of the Progress Report). However, no bands in addition to the bands already proposed to WG SE should be considered by WG SE for the time being.
Some administrations proposed to remove bands from the tables because they are not suitable for a Broadband DA2GC system from their point of view. WG FM did not decide on the removal of bands but asked FM PT 48 to further consider the categorisation, FM PT 48 should also reconsider the frequency bands with the aim to reduce the number.
Two proposals which are related to the categorisation of the bands, from Ukraine and from UK, were introduced to the meeting. It was decided that these proposals should be made available by the PT chairman for the next FM PT 48 meeting for further discussions.
The Report of ECC PT 1 (FM(11)130rev1) contains a Liaison Statement to FM PT 48 and SE PT 44, describing the on-going activities regarding the band 3400-3600 MHz (see also section 5.9.1).
The meeting was also informed by WG SE, that a new project team had been established for compatibility and sharing issues regarding Broadband DA2GC. The FM PT 48 chairman informed the meeting that it is the intention to coordinate the meetings of SE PT 44 and FM PT 48 as far as possible. WG FM authorised FM PT 48 to liaise directly with SE PT 44.
Working Group FM also considered a contribution from Lufthansa Systems AG (Info document 9). This document contains a brief system description including key technical characteristics of an alternative DA2GC system to the system already being considered within WG FM and WG SE and described in ETSI TR 103 054. It was considered to use spectrum in the bands 2400 – 2483.5 MHz and 5855 – 5875 MHz.
In relation to this document, the ETSI Liaison Officer expressed concerns with regard to the usage of license exempt spectrum for these applications as much higher EIRP levels (than currently regulated) are required to cover the required distance. He reminded WG FM on the discussions that took place recently within ETSI, CEPT and EC (TCAM) in relation to the usage of the 2.4 GHz band and the standard EN 300 328. These discussions resulted in the reinforcement of the usage of a polite access mechanism for equipment using power levels up to 100 mW. Outdoor base stations deployed across Europe and using higher power levels without a polite sharing mechanism could impact any other outdoor application in the 2.4 GHz band.
The approach as described in the info document would not lead to studies for bands other than those already submitted to WG SE. WG FM decided to inform WG SE and SE PT 44 about this