Ofcom has published a consultation on a framework for the operation of white space devices in the UK.

A white space device uses gaps in radio spectrum, called ‘white spaces’, which exist in between frequency bands that have been reserved for TV broadcasting. Use of these white spaces would allow devices to transmit and receive wireless signals for applications such as broadband access for rural communities or innovative ‘machine-to-machine’ networks.

The consultation includes proposed regulatory requirements and technical specifications for white space devices - http://stakeholders.ofcom.org.uk/consultations/whitespaces/

TV white spaces - A consultation on white space device requirements - http://stakeholders.ofcom.org.uk/binaries/consultations/whitespaces/summary/condoc.pdf