scope:

The present document contains a review of the feasibility of implementing certain mitigation techniques in WAS/RLAN equipment in the 5 725 MHz to 5 850 MHz frequency range. The present document has been triggered by the Work Item agreed in CEPT to study the possible use of WAS/RLANs in some CEPT countries as a result of the work and discussions on the EC Mandate on 5 GHz [i.1] and WRC-19 Agenda Item 1.16.

The present document is intended to study the feasibility of implementing additional mitigation techniques in WAS/RLANs to provide possible sharing solutions between WAS/RLAN and the following services and applications operating in some CEPT countries:

• Road tolling in the bands 5 795 MHz to 5 815 MHz.

• Smart-Tachograph, (weights and dimensions); band (5 795 MHz to 5 815 MHz).

• Some modes of fast frequency hopping radar not specifically covered in WAS/RLAN DFS algorithms today; band 5 725 MHz to 5 850 MHz.

WAS/RLAN technologies meeting the scope and requirements contained within ETSI EN 301 893 [i.4] and ETSI EN 302 502 [i.29] as well as any additional mitigation techniques studies as part of the present document are considered in the present document. See clause 4 for more detailed information on the services and applications being studied in the present document.

WAS/RLAN technologies with an output power of less than or equal to 25 mW EIRP can operate within the scope of ERC/REC 70-03 [i.11] annex 1, and as such are outside the scope of the present document.