Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR03021)
Point-to-Point

RIR0302-46
Point-to-Point
71 - 76 and 81 - 86 GHz
250, 500 MHz / FDD
Edition 9.0 / 01.08.2018

Nr Parameter2)DescriptionComments
1Radiocommunication serviceFixed-
2ApplicationPoint-to-PointFDD
3Frequency bandA: 71.125 - 75.875 GHz
B: 81.125 - 85.875 GHz
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4Channelling250 MHz / 500 MHz.19 paired channels of 250 MHz, to form paired channels up to an channel bandwidth of 500 MHz.
Channel centre frequencies according to ECC/REC/(05)07, Figure A4.2.
5Modulation / Occupied bandwidthClass: 2 and 4L (QPSK and 16-QAM or equivalent).
ACM is allowed.
OBW: 250 / 500 MHz.
Definition of spectral efficiency classes: refer to EN 302 217-2, clause 4.1.1.3.
Adaptive Coded Modulation (ACM) and Adaptive Bandwidth is allowed.-
OBW with Class 2 (QPSK or equivalent): 250 MHz / 500 MHz without ACM.
OBW with Class 4L (16-QAM or equivalent): 250 MHz / 500 MHz with or without ACM.
6Direction / Separation10 GHzFDD
7Transmit power / Power densityMax. 55 dBW e.i.r.p. for antenna gain of min. 55 dBi.The max. e.i.r.p. has to be reduced, if the antenna gain is lower than 55 dBi. Refer to EN 302 217-3, Annex UC.2.
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.
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10Additional essential requirements--
11Frequency planning assumptionsEN 302 217-2.
Nominal 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: +2 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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Limits of transmitter power spectral density: Refer to EN 302 217-2, clause 4.2.3.2, Figure 8.
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Allowed Reference Modes for ACM and Adaptive Bandwidth:
- 250 MHz channelling with 16-QAM or equivalent modulation,
- 500 MHz channelling with 16-QAM or equivalent modulation.
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Min. link distance = 100 m.
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Site sharing radius = 50 m
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Class 3 antenna.
Minimum antenna gain = 38 dBi.
Linear (horizontal or vertical) polarization.
Antenna radiation pattern envelope (RPE) according to EN 302 217-4, Figure 39.
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/(05)07.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/174
2014/9501/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