Method and system enabling use of white space radio spectrum...

H - Electricity – 04 – H

Patent

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Details

H04H 20/42 (2009.01) H04W 16/10 (2009.01) H04W 16/14 (2009.01) H04N 7/00 (2011.01)

Patent

CA 2734918

A system (10) and method (50 or 70) of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting involves determining (51) a location of a user device using GPS or other signals (such as television broadcast signals) received at the user device using signal strength or time distance of arrival of those signals. The method can determine (52) which UHF television broadcast channels are available for use by the user device and determine (53) a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels before transmitting (54) the maximum allowed transmission power and location by the user device to a remote server for sharing information. The method can receive (55) polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast.

Linvention concerne un système (10) et procédé (50 ou 70) dallocation dynamique de spectre pour un dispositif de communication dans lequel une bande UHF nest pas en cours dutilisation pour la télédiffusion sous licence. Le procédé implique la détermination (51) dune position dun dispositif utilisateur utilisant des signaux GPS ou autres (tels que des signaux de télédiffusion) reçus dans le dispositif utilisateur à laide de lintensité de signal ou de la distance temporelle darrivée de ces signaux. Le procédé peut déterminer (52) les canaux de télédiffusion UHF qui sont disponibles pour être utilisés par le dispositif utilisateur et déterminer (53) une puissance de transmission maximale autorisée pour un canal donné sur la base de lintensité de signal du canal donné et sur la base des canaux adjacents avant la transmission (54) de la puissance de transmission maximale autorisée et de la position du dispositif utilisateur par rapport à un serveur éloigné permettant de partager des informations. Le procédé (55) peut recevoir des points limites polygonaux à partir dune télédiffusion définissant lemplacement de réception utilisable de la télédiffusion.

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