Protocol to Access White Space database (PAWS)

As nations struggle to provide spectrum in a finite swath of useful spectrum, especially spectrum for use with wireless Internet bandwidth, there are problems with incumbents in a given band. The incumbents may use the spectrum inefficiently, especially geographically - there may be large swaths of country where a particular band is not used at all, and others where use is only in a portion of the band.

Recently, techniques have been developed that attempt to share spectrum between incumbents and new users. The generic term for this is "white space". For example, in over the air TV bands, spectrum is divided into channels, and in any one area, usually not all channels have TV transmitters in range. There is a desire among many regulators to make this prime spectrum available for Internet access and other uses, as long as the new use does not interfere with the existing TV band use.

Multiple database(s) are expected to exist which contains the information about available channels for use at a given location. A device is required to query the database for available channels and associated information. There are several scenarios that the US regulation permits which include a simple tower/client arrangement where the tower queries the database on behalf of itself and its client TVBDs as well as ad hoc mobile networks where at least one TVBD in the ad hoc net has another path to the Internet and can query the database with it.

This BoF will explore the various aspects of specifying a messaging interface betwen the devices and the database.

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