Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR10101)
Wideband data transmission systems

Wideband data transmission systems
5150 - 5350 MHz
200 mW indoor, 25 mW inside cars
Edition 6.0 / 01.09.2019

Nr Parameter2)DescriptionComments
1Radiocommunication serviceMobile-
2ApplicationWideband data transmission systemsWireless Access Systems (WAS) including Radio Local Area Networks (RLAN).
All applications are restricted to indoor and inside cars use.
3Frequency bandA: 5150 - 5250 MHz
B: 5250 - 5350 MHz
5Modulation / Occupied bandwidth--
6Direction / Separation--
7Transmit power / Power densityMax. 200 mW e.i.r.p.
Max. 10 mW/MHz e.i.r.p. density in any 1 MHz band.
Max. 25 mW e.i.r.p. (5150 - 5250 MHz) inside cars for RLAN use.
WAS/RLANs operating in the band 5250 - 5350 MHz shall either employ transmitter power control (TPC), which provides, on average, a mitigation factor of at least 3 dB on the maximum permitted output power of the systems; or if transmitter power control is not in use, the maximum permitted e.i.r.p. and the corresponding e.i.r.p. density limits shall be reduced by 3 dB.
Type of Antenna: integral or dedicated.
RLAN use inside cars (passenger cars, lorries, buses) in the band 5150-5250 MHz is allowed at a maximum e.i.r.p. of 25 mW.
8Channel access and occupation rulesDynamic Frequency Selection (DFS) in the band 5250 - 5350 MHz.WAS/RLANs operating in the band 5250 - 5350 MHz shall use mitigation techniques that give at least the same protection as the detection, operational and response requirements described in EN 301 893 to ensure compatible operation with radiodetermination systems (radars). Such mitigation techniques shall equalise the probability of selecting a specific channel for all available channels so as to ensure, on average, a near-uniform spread of spectrum loading.
The equipment shall implement an adequate spectrum sharing mechanism in order to facilitate sharing between the various technologies and applications. The adequate spectrum sharing mechanism can be e.g. LBT (Listen Before Talk), DAA (Detect And Avoid) or any other mechanism providing a similar level of mitigation.
9Authorisation regimeSwitzerland: License exempt.
Liechtenstein: General authorisation.
Operation on NIB / NPB. (Non interference basis / non protection basis).
Restricted to indoor and inside cars use.
10Additional essential requirements--
11Frequency planning assumptionsEN 301 893-
12Planned changes--
13ReferenceEN 301 893 / ECC/DEC/(04)08 / ERC/REC 70-03, Annex A.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/238
15RemarksEN 301 489-17Test Report Template ETSI TR 102 741 may be applied for testing to EN 301 893.

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