![]() ![]() ![]() ![]() The paper discusses regulatory implications and the type of services suited to exploit narrowband spaces. However, the narrowband nature of the 400 MHz licences and high licensing turnover imply a significantly different concept of dynamic spectrum access than that considered for TV Bands. ![]() Encouraging dynamic spectrum usage of narrowband spaces could, similarly to TV white space usage help realise the efficient allocation of the 400 MHz band. Drawing parallels with the high economic value revealed and generated through the operations of unlicensed white space devices in UHF broadcast spectrum, we identify untapped 400 MHz spectrum capacity, which we refer to as narrowband spaces. It is therefore difficult to ascertain the economically efficient mix of services to deploy in the 400MHz band. 400 MHz frequencies are not priced on opportunity cost. However, productive spectrum usage does not guarantee allocative efficiency, which would require knowledge of the highest value service for each licence. As opposed to UHF broadcast spectrum, which contains unassigned or idle segments known as white spaces, the 400MHz band is characterised by intensive licence usage. We examine the potential for expansion of the white space spectrum sharing model in the 400 MHz band. ![]()
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