judgecorp writes: "The European Union has proposed that operators should share their spectrum, to make better use of it. The European authorities want to go beyond the "white space" re-use of geographic gaps in spectrum, acknowledging that intelligent radio systems can now avoid interference. The EU wants operators to allow other players onto their licensed spectrum with short range equipment, in exchange for help building wireless infrastructure and create more mobile data capacity"
This process can check if this value is zero, and if it is, it does
-- Forbes Burkowski, CS 454, University of Washington