SSH EN 302 217-2-2 V1.1.3:2004

Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part 2-2: Harmonized EN covering essential requirements of Article 3.2 of R&TTE Directive for digital systems operating in frequency bands where frequency co-ordination is applied

Scope

The present document specifies the essential requirements for Digital Fixed Radio Systems (DFRS) operating in
frequency bands, which require co-ordinated frequency planning. It is intended to cover the provisions of the
R&TTE Directive [1] 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 with other parts EN 302 217-3 (see bibliography) and EN 302 217-4-2 [7] will replace and
supersede, after a suitable transition period, the harmonized EN 301 751 (see bibliography) for all P-P equipment and
antennas.
This EN 302 217 series introduces, for systems (equipment and antennas) already covered by EN 301 751 (see
bibliography), only technically equivalent or less stringent requirements (see note 1). Care has been taken so that such
variations will not affect any frequency planning assumption for already deployed networks. Therefore, from a strictly
technical point of view, it is expected that equipment already conforming to EN 301 751(see bibliography), would not
need a new test report for re-assessment of essential requirements according this EN 302 217-2-2 (see note 1).
However, legal implications with respect to declaration of conformity and equipment labelling are outside the scope of
the present document.
NOTE 1: The only exception is with respect to class 5A equipments for system D.7 (see annex D) and for
systems E.1, E.2 and E.3 (see annex E) for which a previous design objective has here been transformed
into a more stringent RSL versus BER. In this case a supplementary test report might be required (e.g. in
case the technical construction file, made for declaration of conformity to EN 301 751 (see bibliography),
does not give evidence of enough margin to fulfil the requirements of the present document).
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the R&TTE Directive [1] 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 302 217-4-2 [7], 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 or ITU-R Recommendation);
• spectral efficiency class alternatives (different modulation formats provided in radio equipment standards) as
defined in the Scope of EN 302 217-2-1 (see bibliography);
• antenna directivity class alternatives (for different network requirements).
The present document is mainly intended to cover fixed radio equipment without integral antennas. However, it also
applies to fixed radio systems products with integral antennas, for which all the technical requirements included in the
present document and in EN 302 217-4-2 [7] apply. For more background information on the equipment and antenna
parameters here identified as relevant to Article 3.2 of R&TTE Directive see EG 201 399 (see Bibliography) and
TR 101 156.
For simplicity, the point-to-point systems are split into separate annexes, with respect to ranges of frequency bands and
channel separations, into the following families which may include a range of corresponding payload rates for covering
various applications requested by the market:
• ANNEX A: Frequency bands from 1,4 GHz to 2,7 GHz:
Systems with channel separations ranging from 0,025 MHz to 14 MHz for indicative payload
rates ranging from 0,0096 Mbit/s to 34 Mbit/s. See detailed summary in table A.2.
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12 ETSI EN 302 217-2-2 V1.1.3 (2004-12)
• ANNEX B: Frequency bands from 3 GHz to 11 GHz (channel separation up to 30 MHz):
Systems with channel separations ranging from 1,75 MHz to 30 MHz for indicative payload
rates ranging from 2 Mbit/s to 2 × STM-1 Mbit/s. See detailed summary in table B.2.
• ANNEX C: Frequency bands from 3 GHz to 11 GHz (channel separation 40 MHz):
Systems with channel separations 40 MHz or 2 × 40 MHz for indicative payload rates from
STM-1 Mbit/s to STM-4/4 × STM-1 Mbit/s. See detailed summary in table C.2.
• ANNEX D: Frequency bands 13 GHz, 15GHz and 18 GHz:
Systems with channel separations ranging from 1,75 MHz to 55/56 MHz or 2 × 55/56 MHz for
indicative payload rates ranging from 2 Mbit/s to STM-4/4 × STM-1 Mbit/s. See detailed
summary in table D.2.
• ANNEX E: Frequency bands from 23 GHz to 55 GHz:
Systems with channel separations ranging from 3,5 MHz to 56 MHz or 2 × 56 MHz for
indicative payload rates ranging from 2 Mbit/s to STM-4/4 × STM-1 Mbit/s. See detailed
summary in table E.2.
In those annexes further subdivision in sub-annexes is made, as appropriate, according to frequency bands, capacities
and/or channel separation (see table 3 of EN 302 217-1 [6]).
From the point of view of the transmission capacity, these systems are defined, in the relevant annexes, on the basis of
their minimum Channel Separation (CS) on the same route, for a given spectrum efficiency class, taken into account by
the system design. The possible channel arrangements may be:
• Adjacent Channel Alternate-Polarized (ACAP);
• Adjacent Channel Co-Polarized (ACCP);
• Co-Channel Dual-Polarization (CCDP).
These possible applications and their channel arrangements are shown in figure 2.
ACCP
V or H
CCDP
V
H
ACAP
V
H
Figure 2: Examples of channel arrangements on the same route
The capacities in tables X.2 (where X = B…E represents the relevant annex) are commonly tailored on typical PDH and
SDH base band interfaces, identified for simplicity with 2 Mbit/s, 2 × 2 Mbit/s, 8 Mbit/s, 2 × 8 Mbit/s, 34 Mbit/s,
2 × 34 Mbit/s, STM-0 (51 Mbit/s), 2 × STM-0 (2 × 51 Mbit/s), STM-1 (155 Mbit/s), N × STM-1 (N × 155 Mbit/s),
STM-N. Systems in annex A, due to the smaller channel separation provided, are (exceptionally) labelled with typical
capacity rate without specific reference to PDH/SDH rates.
Provided that they meet all requirements of the relevant annex, equivalent PDH or SDH transport rates may be used
where appropriate. Such equivalence transport rates may be:
• N × 2 Mbit/s or other PDH rates in place of equivalent higher PDH rates;
• 140 Mbit/s in place of STM-1 (including 4 × 34 Mbit/s pre-mapping into the 140 Mbit/s frame);
• any PDH mapping into STM-0 or STM-1 frames, as defined in the basic multiplexing schemes;
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13 ETSI EN 302 217-2-2 V1.1.3 (2004-12)
• N × 2 Mbit/s mapped into SDH VC12 or VC2 transport bit rates (sub-STM-0 defined, as sSTM-1k or
sSTM-2n capacities, by ITU-T Recommendation G.708 (see bibliography)) in place of a PDH rate
(e.g. 4 × VC12/sSTM14 or 1 × VC2/sSTM21 in place of 8 Mbit/s) (see note);
• any other signal (e.g. IP frames or ATM cells, even possibly mixed with PDH capacities) mapping into PDH
or SDH frames, according present or future basic ITU-T or ETSI multiplexing schemes;
NOTE 3: In addition to this general principle, annex D (system D.2) presents specific characteristics for
sub-STM-0 systems in the 18 GHz band.
The present document is also applicable to other base band interfaces (e.g. packet data interfaces or mixed interfaces)
even if multiplexed (including compression algorithms if any) into proprietary frames; for such cases annex F gives the
basic rules for applying the conventional PDH/SDH set of parameters to those equipment assessment.
The requirements of the present document apply separately to each transmitter/receiver or single transmitters or
receivers used for combining complex or simple (e.g. space diversity receivers or single transmitters and receivers used
for unidirectional links) fixed radio systems. Systems labelled with N × STM-1 (N = 1,2) capacity might actually be
aggregated for carrying STM-4 in more than one radio frequency channel, provided that each equipment for each
channel meets the channel requirements. When frequency reuse (e.g. dual polarization reuse or other frequency reuse
techniques) is applied, the requirements apply independently to each transmitter/receiver; the different interference
potential of frequency reuse will be dealt with in the frequency planning associated with the licensing process.