H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/10 (2006.01) H04B 1/16 (2006.01)
Patent
CA 2619148
A filter for reducing co-channel interference within a communications receiver 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.
L'invention concerne un filtre permettant de réduire le brouillage dans un même canal dans un récepteur de communication. Ce filtre peut comprendre un circuit filtrant espace-temps multicanal qui filtre n parties du signal obtenues par division d'un signal de transmission, en estimant conjointement les coefficients de pondération du filtrage espace-temps et les réponses impulsionnelles multicanal (CIR) à partir d'une décomposition de Cholesky et d'une décomposition en valeurs propres. Le filtre peut en outre comprendre un circuit filtrant adapté multicanal qui reçoit des signaux multicanal en provenance du circuit filtrant espace-temps multicanal, et dont la réponse résulte d'une estimation de la réponse impulsionnelle du canal du circuit filtrant espace-temps.
Kemenczy Zoltan
Simmons Sean
Wu Huan
Borden Ladner Gervais Llp
Research In Motion Limited
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