scope:

The present document provides a proposal for a complementary introduction of a 24,25 GHz to 27,5 GHz (26 GHz band) UWB SRR technology that is supposed to overcome the challenges experienced under the existing regulation.

It is to be noted that the existing regulation for 24 GHz as well as for 79 GHz is not intended to be modified but to be complemented by this new option.

The present document applies to Short Range Devices for automotive applications as defined by EC Decisions 2005/50/EC [i.1] and 2004/545/EC [i.7]. It considers the previous SRDoc TR 101 982 [i.11], reviews the present regulation for the 24 GHz UWB SRR band, analyses the situation in the automotive and the component supplier industry, addresses cost issues, the market penetration and regulatory shortcomings. Secondly it proposes forward looking solutions to improve the regulatory situation in order to allow a deployment of cars on the road, the global harmonization of SRRs, a more efficient contribution of the SRR technology to the road safety needed to comply with the goals of the eSafety program of the European Commission [i.8].

The latest SRR developments as covered in annex B reduce the emission levels in the 26 GHz band (24 GHz to 27,5 GHz). The new set of proposed emission parameters are proposed to facilitate the compatibility to other services operating in the same 26 GHz band.

The UWB emissions of the proposed document operates in the range 24,25 GHz to 27,5 GHz.Additional non-UWB SRR functions in the 24,05 GHz to 24,25 GHz can be combined with the UWB SRR system. These SRR functions in the 24,25 GHz to 27,5 GHz range are not included in the present document, they present state-of the-art ISM band 24 GHz NB SRR technology. Such additional non-UWB functions are covered in the EN 302 858 [i.35] (under development).

It includes in particular:

• market information;

• technical information;

• regulatory issues.