H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/26 (2006.01) H04W 16/14 (2009.01)
Patent
CA 2728533
Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 104) and at least one cognitive radio (CR) system (106, 108) is provided. The CR unit includes OFDM detection (216) for detecting the presence of OFDM signals which indicate the presence of an incumbent communication system within the shared spectrum. The CR system (106) updates channel occupancy information in response to the detected OFDM signals so as not to interfere with the incumbent communication systems (102, 104).
L'invention concerne un partage efficace de spectres de fréquences entre au moins un système de communication en place (102, 104) et au moins un système (106, 108) d'ondes radio cognitives (CR). L'unité CR comprend une détection OFDM (216) pour détecter la présence de signaux OFDM qui indiquent la présence d'un système de communication en place dans le spectre partagé. Le système CR (106) met à jour les informations d'occupation de canal en réponse aux signaux OFDM détectés pour ne pas perturber les systèmes de communication en place (102, 104).
Chaudhri Apoorv
Corke Robert J.
Rao Yadunandana N.
Gowling Lafleur Henderson Llp
Motorola Inc.
Motorola Solutions Inc.
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