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Report
Worldwide regulations for 60GHz – Outdoor Fixed Links
Darko Beverin
[email protected]
29 May 2014
1
European Regulations (60 GHz)
• The 60GHz band is typically licence-exempt in Europe due to the
high oxygen absorption in this band. The 60GHz band in Europe
refers to frequencies from 57 – 64GHz
• Spectrum was ‘allocated’ by recommendations by ECC*
–
V Band ECC/REC (09)01
•
USE OF THE 57 - 64 GHz FREQUENCY BAND FOR POINT-TO-POINT FIXED WIRELESS SYSTEMs
• Local Regulators are thereby assured by the ECC/RECs that
– ECC has considered interference issues with Pan European
services
– Allowing FS operation is low risk unless there are specific,
existing, in-country frequency allocations that need to be
considered
– The channel allocation scheme is suggested for use only if a
regulator wishes to coordinate links in the band, and is not
mandatory
*Electronic Communications Committee (ECC) within the European Conference of Postal and Telecommunications Administrations (CEPT)
Ofcom Executive Summary - Release
of the 59 – 64 GHz band, December 2009
– This statement (document IR2078) presents Ofcom’s decision to go
ahead with opening the spectrum in the 59 – 64 GHz band for Fixed
Wireless Systems (FWS) and to combine this with the existing 57 –
59 GHz band under one overall licence exempt authorisation
approach for FWS
Worldwide regulations for 60GHz –
Outdoor Fixed Links
Europe: ECC/REC/(09)01
Parameter
ETSI regulation
Maximum EIRP
+55 dBm
Minimum antenna gain
30 dBi
Maximum Tx Output power
+10 dBm
Channel arrangement
Suggested, but not mandated
USA: FCC Part 15.255
Parameter
Maximum EIRP (Average)
Maximum EIRP (Peak)
Maximum Tx Output power
Channel arrangement
FCC regulation
+82 dBm (derated for antenna gain below 51dBi)
+85 dBm (derated for antenna gain below 51dBi)
+10 dBm
Not required
• No channel assignments required in 60GHz band
Licencing of 60GHz (V) Band
Country
Australia
Bahrain
Brazil
Canada
Chile
China
Columbia
Europe
Japan
Korea
Oman
Russia
Singapore
Tanzania
Turkey
UAE
Ukraine
UK
USA
Specification
F2011C00543
RSS 210 Issue 8
SRRC rule no. 82 low
power
• Mostly licence-exempt
Licence type Tx Power
Exempt
13dBm
Licensed
Exempt
Exempt
Exempt
EIRP
Freq. band
59-63GHz
57-64GHz
Exempt
Exempt
ECC/REC(09)01 EN 302 217
Exempt
Exempt
TRA Decision No.
133/2008
ECC/REC(09)01
Exempt
Exempt
Exempt
Licensed
Fixed Service only
ER0047935/10
EEBC
Reg fee
Licensed
Ofw48, IR2078
ECC/REC(09)01 EN 302 217
Exempt
Part 15.255
10dBm
Exempt
10dBm
59-64GHz
57-64GHz
55dBm
25dBm
59-63GHz
55dBm
57-64GHz
82dBm
(derated)
57-64GHz
Licencing of 60GHz (V) Band
CDW
Hutton
Tessco
Winncom
Cernet
license-exempt or light-license
Coordination Distances
•
•
•
Ofcom (UK regulator) does not require any minimum coordination dist @ 60GHz
Even at max 316W EIRP, boresight interference distance = 2.5km for @ 60GHz
Radios in 18GHz – 38GHz bands would need to reduce EIRP to 16mW to achieve
the same 2.5km interference distance
TxP
Product
(dBm)
V-band ETSI
10
V1000
6
38GHz
17
23GHz
17
18GHz
17
6GHz
24
•
•
Antenna
Gain
(dBi)
45
38
40
35
34
29.5
EIRP
(dBm)
55
44
57
52
51
54.5
Bore-sight
Int Dist
(km)
2.5
1.6
109.4
67.6
121.4
300.0
Ofcom UK
Min Coord
Dist (km)
0
0
70
200
200
250
Equiv.
EIRP
(dBm)
55.0
44.0
11.1
11.9
10.5
5.3
Equiv.
EIRP
(mW)
316055
25119
13
16
11
3
Effective interference power: 316W @ 60GHz equiv. to only 11mW @ 18GHz
Interference Minimal in 60GHz band
V-band deployments without interference
A +45o
A -45o
B +45o
B -45o
Ao
•
•
•
•
Minimum distance for zero measurable signal = 50cm (co-polar).
Narrow antenna beamwidth allows to mix Tx Hi and Tx Lo for parallel links
(4+0) possible on same channel
Interference Minimal in 60GHz band
60 GHz Applications
Operator A
Operator B
Small cell
60 GHz Applications
Why Licence-free V-Band
• Band suffers from high Oxygen absorption
– Severely limits link range to 1km or less
– Difficult to Intercept
– Massive benefits in low interference and frequency reuse:
• Ideal for small cell backhaul and no need to coordinate
Received Signal Level
Received Signal Level :
45dBm EIRP and 40dBi Rx Antenna
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Actual Rx Power at 63GHz with
Oxygen Loss
Equipment Noise Floor (200MHz
BW)
0
1000
2000
Link Distance (m)
3000
4000

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