H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 24/08 (2009.01) H04W 12/12 (2009.01)
Patent
CA 2626944
Described is a method for detecting activity on a frequency band. A wireless signal of a predetermined radio frequency band is received. The signal is processed into a plurality of subsignals, each subsignal corresponding to a particular radio frequency channel of the band. An energy level of the corresponding subsignal is determined, and, when the energy level is greater than a predetermined level, the corresponding channel is analyzed.
La présente invention concerne un procédé destiné à détecter une activité sur une bande de fréquence. Un signal sans fil d~une bande de fréquence radio prédéfinie est reçu. Le signal est traité en une pluralité de sous-signaux, chaque sous-signal correspondant à un canal de fréquence radio particulier de la bande. Un niveau d~énergie du sous-signal correspondant est déterminé, et, quand le niveau d~énergie est supérieur au niveau prédéfini, le canal correspondant est analysé.
Le Vinh-Phuong Tra
Prest Kevin
Bcf Llp
Symbol Technologies Inc.
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