Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR03021)
Point-to-Point

RIR0302-05
Point-to-Point
3.800 - 4.200 GHz
29 MHz / CCDP / ACCP
Edition 4.0 / 01.08.2018

Nr Parameter2)DescriptionComments
1Radiocommunication serviceFixed-
2ApplicationPoint-to-PointCCDP (Co-Channel Dual Polarized)
ACCP (Adjacent Channel Co-Polarization)
3Frequency bandA: 3.800 - 3.984 GHz
B: 4.023 - 4.200 GHz
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4Channelling29 MHzChannel centre frequencies according to CEPT/ERC/REC 12-08; Annex B, Part 1.
5Modulation / Occupied bandwidthClass: 5HB (128-QAM or equivalent).
ACM is allowed.
OBW: 29 MHz.
Definition of spectral efficiency classes: refer to EN 302 217-2, clause 4.1.1.3.
Adaptive Modulation (ACM) is allowed.
OBW with Class 5HB (128-QAM): 29 MHz with or without ACM.
6Direction / Separation213 MHzFDD
7Transmit power / Power densityMax. 55 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.
Geographical restrictions: Exclusion areas in Canton Valais and in town areas of Bale and Zürich.
New assignments only in particularly justified cases.
10Additional essential requirements--
11Frequency planning assumptionsEN 302 217-2.
Nominal RX input level = - 50 dBm.
ATPC control range = min. 15 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 of transmitter power spectral density: Refer to EN 302 217-2, clause 4.2.3.2, Figure 7.
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Allowed Reference Mode for ACM:
- 29 MHz channelling with 128-QAM modulation.
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Min. link distance = 40 km.
Site sharing radius = 600 m.
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Class 3 antenna.
Min. antenna gain = 34 dBi.
Linear (horizontal or vertical) polarization.
Antenna radiation pattern envelope (RPE) according to EN 302 217-4, Figure 13.
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.
12Planned changes--
13ReferenceEN 302 217-2 /-/ ERC/REC 12-08.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/170
2013/9504/CH
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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