System and method utilizing a cognitive transceiver for ad...

H - Electricity – 04 – H

Patent

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Details

H04H 20/71 (2008.01) H04B 7/005 (2006.01) H04N 7/24 (2006.01)

Patent

CA 2580872

The present invention provides methods and apparatuses for utilizing unused portions of an allocated frequency spectrum in a wireless communications system that broadcasts content to wireless stations. A first wireless station may communicate with a second wireless station on an idle broadcast channel while keeping the resulting interference level below an acceptable maximum limit at the other wireless stations. Using interference level information that are measured at the wireless stations, the wireless station can negotiate with the other wireless station on an establishment channel for subsequent communications on one or more broadcast channels. The wireless station may receive broadcast content on a time slice that corresponds to a broadcast channel and that is further processed by the wireless station. Otherwise, the wireless station can utilize the corresponding time to measure an interference level for the corresponding channel or to transmit or receive data to/from another wireless station.

L'invention se rapporte à des procédés et des appareils d'utilisation de parties non utilisées d'un spectre de fréquence attribué dans un système de communication sans fil qui diffuse un contenu à des stations sans fil. Une première station sans fil peut communiquer avec une seconde station sans fil sur un canal de diffusion libre tout en conservant le niveau d'interférence obtenu en-dessous d'une limite maximum acceptable par rapport aux autres stations sans fils. Grâce à l'utilisation des informations relatives aux niveaux d'interférence mesurés dans les stations sans fil, la station sans fil peut négocier avec l'autre station sans fil sur un canal de mise en place en vue des communications ultérieures sur un ou plusieurs canaux de diffusion. La station sans fil peut recevoir un contenu de diffusion pendant un intervalle de temps correspondant à un canal de diffusion et traité ultérieurement par la station sans fil. Dans une alternative, la station sans fil peut utiliser le temps correspondant pour mesurer un niveau d'interférence destiné au canal correspondant ou pour transmettre ou recevoir des données à/d'une autre station sans fil.

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