Device and method for measuring non-orthogonal noise power...

Details Device and method for measuring non-orthogonal noise power... Device and method for measuring non-orthogonal noise power...

H - Electricity

04

B

H04B 1/69 (2006.01) H04B 1/707 (2006.01) H04B 7/005 (2006.01) H04B 7/216 (2006.01) H04B 15/00 (2006.01)

Patent

CA 2298688

A non-orthogonal noise detecting device for a CDMA communication system. In the device, a despreader despreads multiple channel signals including a specific channel with an orthogonal code assigned to the specific channel repeating at least two same second symbols at a given first symbol duration, to generate despread repeated symbols. A difference signal generator receives the despread second symbols, and generates a difference signal between a presently received second symbol and a previously received second symbol. A noise detector converts the difference signal to an energy value to generate a non-orthogonal noise signal.

Dispositif de détection de bruit non orthogonal pour système de communication AMDC. Dans le dispositif, un désétaleur désétale les signaux multivoies comprenant une voie spécifique avec un code orthogonal affecté à la voie spécifique répétant au moins deux seconds symboles identiques, à une durée donnée de premier symbole, afin de produire des symboles répétés désétalés. Un générateur de signal de différence reçoit les seconds symboles désétalés et il produit un signal de différence entre un second symbole venant d'être reçu et un second symbole reçu antérieurement. Un détecteur de bruit convertit le signal de différence en une valeur d'énergie pour produire un signal de bruit non orthogonal.

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