scope:

General

The present document is intended to cover the provisions of the R&TTE Directive [2] regarding article 3.2, which states that "[...] radio equipment shall be so constructed that it effectively uses the spectrum allocated to terrestrial/space radio communications and orbital resources so as to avoid harmful interference".

The present document is applicable to the essential requirements of equipment (including equipment with integral antennas) used in MultiPoint (MP) Digital Fixed Radio Systems (DFRS) (see note) intended for use in the frequency bands identified in EN 302 326-1 [11].

NOTE 1: Applications intended for offering in the bands 3,4 GHz to 3,8 GHz the option of Nomadic Wireless Access (NWA), according to the NWA definition in ITU-R Recommendation F.1399 (see bibliography), are also considered in the scope of this EN.

Besides its previous versions, The present document, together with EN 302 326-3 [12] replaces and supersedes, after a suitable transition period, the harmonized EN 301 753 (see bibliography) for all multipoint equipment and antennas under its scope.

The present document and EN 302 326-3 [12] introduce rationalization among systems conforming to previous EN 301 753 (see bibliography) referencing a number of ENs which, being developed at different times, might have specified slightly different requirements. However, care has been taken so that such variations will not affect any frequency planning assumption for already deployed networks. Therefore, unless specifically mentioned, these new requirements, whenever different from those single ENs, are considered completely "equivalent". Therefore mixed use of equipment conforming to the present document and to those previous ones will not change, in practice, any frequency planning rule in any network.

Therefore, from a strictly technical point of view, in most cases it is expected that equipment already conforming to the previous versions of Harmonized EN 301 753 (see bibliography), would not need re-assessment of essential requirements according to the present document. The legal implications of the declaration of conformity and equipment labelling are, however, outside the scope of this whole multi-part deliverable. Cases, where additional conformance assessment is anyhow required, will be specifically mentioned in the present document and also EN 302 326-3 [12].

In addition to the present document, other ENs specify technical requirements in respect of essential requirements under other parts of article 3 of the R&TTE Directive [2] and which will apply to equipment within the scope of the present document.

NOTE 2: A list of such ENs is included on the web site http://www.newapproach.org.

In order to (technically) cover different market and network requirements, with an appropriate balance of performance to cost and effective and appropriate use of the radio spectrum, the present document, together with EN 302 326-3 [12], offers a number of system types and antennas alternatives, for selection by administrations, operators and manufacturers dependent on the desired use of the radio spectrum and network/market requirements; those options include:

• channel separation alternatives (as provided by the relevant CEPT Recommendation);

• spectral efficiency class alternatives (different modulation formats provided in radio equipment standards);

• antenna sectorization alternatives and directivity classes for CS;

• antenna directivity class alternatives for TS and/or RS, as well as omnidirectional alternative for TS intended for Nomadic Wireless Access (NWA);

• antenna basic polarization (linear or circular).

The applicability of this whole multi-part deliverable to MP equipment is governed by the definition of a number of system profiles that define the set of consistent requirements as described in EN 302 326-1 [11] to which equipment shall conform.

The present document is considered applicable to fixed radio systems products with integral antennas, for which all the technical requirements included in the present document and in EN 302 326-3 [12] apply, and to separate equipment products, to which only the relevant technical requirements apply, and which might therefore be subject to separate declarations of conformity with respect to the essential requirements of the R&TTE Directive [2].