Cognitive radios are the essential enabler for using a whitespace in TV spectrum bandwidth by finding free spectrum in the TV band. In December 2008, Philips, Samsung, HP, TI, ETRI and GeorgiaTech announced the formation of a new group called the Cognitive Networking
Alliance (CogNeA). CogNeA aims to drive the definition and adoption of an industry-wide standard for low power personal and portable devices to operate over TV White Spaces.
The technologies for the cognitive radios over TV white space are under standardization by IEEE. The technologies for the cognitive radios over TV white space can also be applied to
4G LTE: Femtocell FAP and Self-organizing networks (SONs).
To find the technology innovation status of cognitive radio over TVWS, a keyword search of
the USPTO patent data base has been performed. Total of 701 cognitive radio over TVWS related patents (158 issued patents and 543 published applications) in the US as of Sept. 30 2010 are identified.
Samsung Electronics was the leader in the cognitive radio over TVWS technology innovations followed by Motorola, and Qualcomm.
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