11/12/2009

Release of the 59 – 64 GHz band | Ofcom

Release of the 59 – 64 GHz band | Ofcom

Ofcom has published a statement regarding its intent to make the 60GHz band license exempt. This will actually cover spectrum from 57.1 - 63.9 GHz (which leaves a 100MHz guard band at either side i.e. the band is actually from 57 - 64 GHz).

This gices a 6.8GHz block of spectrum which is suitable for very hand bandwidth short range applications such as 100Mb/s Ethernet and even 1Gb/s Ethernet type services (as in Fixed Wireless Services or FWS), though it is also suitable for things like Intelligent Transport Services and new standards such as Wireless HD (for transporting HD television around the home).

60GHz has poor propagation and is rapidly attenuated in air and building materials are likely to block signals completely, so it is eminently suited to short range in-building use.

In order to make the band license exempt, Ofcom will need to change the Wireless Telegraphy Act with a standard instrument in line with Ofcom policy on the exempt regulations.

In spring 2010 Ofcom will issue a policy statement and consultation on draft license exmption regulation including the necessary changes to make the 60GHz band license exempt. In Summer 2010 Ofcom will publish the Final Regulatory Statement on license exemption and the regulations will come into force.

In order to utilise equipment in the 60GHz band there are various conditions: -

Equipment and Antennas must conform to essential requirements of the RTTE and the technical conditions as set out in this statement, the maximum EIRP is 55 dBm, the maximum transmitter Output Power is 10 dBm and the minimum Antenna Gain is 30 dBi.

There are also 3 areas in the UK where equipment must not be used within a 6Km radius and these are: -

* Site 1: 57 21' 3.6", -07 23' 36.6"
* Site 2: 51 37' 16.8", -04 58' 21"
* Site 3: 52 38' 1.8", -00 36' 22.8"

which are MoD Geolocation sites and need to be protected against harmful interference.

Equipment is starting to become available for this band both for the FWS market and for in-home wireless distribution systems.
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