About: http://webisa.webdatacommons.org/441030131

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The orthogonality requires that the sub-carrier spacing is ??f=k/(TU) Hertz, where TU seconds is the useful symbol duration (the receiver side window size), and k is a positive integer, typically equal to 1.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com