When the fifth generation mobile network standards (IMT-2020) are finalized, it will be abundantly clear that unlicensed spectrum has become a core part of the mobile access network.
There being three fundamental ways mobile networks can provide more effective bandwidth (additional spectrum, network architecture, air interface), TV broadcasters and satellite operators--among others--often say mobile operators would take all available new spectrum, if they could.
It's a fair statement of desire, perhaps. But the debates over the next several years are likely to center on use of unlicensed bands, which represent the largest block of new spectrum to be made available.
The primary present concerns are over protocols that would allow Long Term Evolution networks to bond Wi-Fi channels at 5 GHz to LTE. Interference is the chief concern, as is "fair" access to channels by LTE and other devices seeking to use Wi-Fi channels at 5 GHz.
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