COGNITIVE RADIO DEVICE AND METHOD FOR DETERMINING CHANNEL OCCUPANCY

• US 20110170512A1
• Filed: 09/03/2009
• Published: 07/14/2011
• Est. Priority Date: 09/29/2008
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Gaddam, Vasanth, Challapali, Kiran, Ghosh, Monisha
• Granted Patent: US 8,780,828 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 76/00 Connection management
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A detector module (100) is operable in a cognitive radio device and capable of determining channel occupancy. The detector module comprises a sensor (110) for sensing incumbent signals at a variable sensing threshold, wherein the sensor generates a first occupancy indication indicating whether the channel includes an incumbent signal having a sensing metric above the variable sensing threshold; a geo-location unit (120) for generating a second occupancy indication based on a location of the detector module; and a decision unit (130) for generating an occupancy decision based on both the first occupancy indication and the second occupancy indication.

Claims