Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR03021)
Point-to-Point

DRAFT - RIR0302-48
Point-to-Point
41.000 - 43.500 GHz
28, 56, 112 MHz / CCDP / ACCP
Edition 5.1.1 / 01.09.2023

Draft version of RIR
This draft RIR is merely for information purposes and is not legally binding at the time of this publication and their contents can still undergo important modifications until officially released.

Nr Parameter2)DescriptionComments
1Radiocommunication serviceFixed-
2ApplicationPoint-to-PointCCDP (Co-Channel Dual Polarization)
ACCP (Adjacent Channel Co-Polarization)
3Frequency bandA: 41.000 - 42.000 GHz
B: 42.500 - 43.500 GHz
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4Channelling28 MHz / 56 MHz / 112 MHzChannel centre frequencies according to ERC/REC/(01)04, recommends 2 (Annex 5) and recommends 4 (Annex 6, option A).
5Modulation / Occupied bandwidthClass: 4L (16-QAM or higher).
ACM is allowed.
OBW: 28 / 56 / 112 MHz.
Definition of spectral efficiency classes: refer to current version of EN 302 217-2 V3.3.1, clause 4.1.3.
Limits for the spectrum masks: refer to current version of EN 302 217-2 V3.3.1, clause 4.2.3.2, Figure 7.
Adaptive Coded Modulation (ACM) is allowed.
OBW with Class 4L (16-QAM or higher): 28 MHz / 56 MHz with or without ACM. 112 MHz in particularly justified cases with or without ACM.
6Direction / Separation1500 MHzFDD
7Transmit power / Power densityMax. 50 dBW e.i.r.p..The operational e.i.r.p. will be specified in the license / individual assignment.
8Channel access and occupation rules--
9Authorisation regimeSwitzerland: License required.
Liechtenstein: Individual assignment required.
-
10Additional essential requirements--
11Frequency planning assumptionsEN 302 217-2.
RX input level = - 40 dBm.
ATPC control range = min. 10 dB to max. 20 dB.
Conditions for the nominal RX input level:
- Receiver input, point A in the system block diagram (EN 302 217-1),
- RX input level tolerance: +1 to -10 dB,
- ATPC set to min. TX output power in clear sky conditions (i.e. without rain fading).
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ATPC power increases shall be triggered on the basis of propagation effects only. The ATPC system shall not remain at max. available power (EN 302 217-1, clause 3.1) for more than 15 consecutive minutes (ITU-R Rec. F.750).
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Remote Transmit Power Control (RTPC) is considered to be an optional feature.
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At first CCDP has to be used and then ACCP.
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Limits for the spectrum masks: refer to current version of EN 302 217-2 V3.3.1, clause 4.2.3.2, Figure 7.
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Allowed Reference Modes for ACM:
- 28.0 MHz channelling with 16-QAM modulation,
- 56.0 MHz channelling with 16-QAM modulation.
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Min. link distance = 500 m.
Site sharing radius = 150 m.
=====
Class 3A, 3B, 3C antenna.
Min. antenna gain = 38 dBi.
Linear (horizontal or vertical) polarization.
Antenna radiation pattern envelope (RPE) according to EN 302 217-4, Figure 29, 30, 31.
OFCOM may impose tighter requirements than the minimum values given in EN 302 217-4 in order to maximize the use of the scarce spectrum resources (Class 4 antenna).
12Planned changes--
13ReferenceEN 302 217-2 / - / ECC/REC/(01)04.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/238
2019/9504/CH
-
15RemarksEN 301 489-4-

Normative part: 1 to 11
Informative part: Nr 12 to 15

1) RIR for similar and/or other applications are available under: https://www.bakom.admin.ch/bakom/en/home/frequenzen-antennen/nationaler-frequenzzuweisungsplan/schnittstellen-anforderungen.html
2) For explanations and legal status, please refer to basis document 784.101.21 / RIR0000