H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/10 (2006.01) H04B 1/16 (2006.01) H04Q 7/32 (2006.01)
Patent
CA 2619117
A wireless communications device may include a wireless transmitter and a wireless receiver. The wireless receiver may include a filter for reducing co- channel interference and may include a multi-channel, space-time filter circuit that filters n signal parts that have been split from a communications signal by jointly estimating space-time filter weights and multi-channel impulse responses (CIRs) based upon Cholesky and eigenvalue decompositions. The filter may further include a multi-channel, matched filter circuit that receives multi-channel signals from the multi-channel, space-time filter circuit and has a filter response that is provided by a channel impulse response estimation from the space-time filter circuit.
La présente invention concerne un appareil de radiocommunication réunissant un émetteur et un récepteur. Ce récepteur comporte un filtre devant atténuer les perturbations entre co-canaux. Ce récepteur comporte également un circuit filtre spatiotemporel multicanal qui filtre n parties de signal qui ont été séparées d'un signal de communications par une estimation conjointe des poids des filtres spatiotemporels et des réponses impulsionnelles multicanal (CIR) sur la base de décompositions de Cholesky et de décompositions de valeurs propres. Le filtre comprend enfin un circuit filtre accordé multicanal recevant des signaux multicanal provenant du circuit filtre spatiotemporel multicanal et dont la réponse de filtre est fournie par un calcul de réponse impulsionnelle multicanal à partir du circuit filtre spatiotemporel.
Kemenczy Zoltan
Simmons Sean
Wu Huan
Borden Ladner Gervais Llp
Research In Motion Limited
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