Cdma signal transmission control

Details Cdma signal transmission control Cdma signal transmission control

H - Electricity

04

B

H04B 7/005 (2006.01) H04B 1/69 (2006.01)

Patent

CA 2364375

The invention is a CDMA transmission control technology (600) that includes various combinations of the following functionality: decresting, in-band to out-of-band ratio (RIO), (611) power control, and spectral shaping (614). Decresting reduces peaks in the CDMA signal. RIO (612) generates a ratio based on the signal strength of in-band versus out-of-band portions of the CDMA signal. Power control adjusts the gain of the CDMA signal based on quadrature signal calculations. Spectral shaping attenuates in-band portions of the CDMA signal adjacent to the corner frequencies. The CDMA transmission control technology can be implemented in a CDMA base station to extend range and capacity.

L'invention concerne une technique (600) de commande d'émission de signaux AMDC comprenant plusieurs combinaisons des fonctionnalités suivantes : écrêtage, rapport intra-bande-hors bande (RIO) (611), commande de puissance et mise en forme (614) dans le spectre. L'écrêtage réduit les crêtes dans le signal AMDC. Le RIO (612) produit un rapport sur la base de la puissance du signal des parties intra-bande par opposition aux parties hors bande du signal AMDC. La commande de puissance règle le gain du signal AMDC sur la base de calculs de signal en quadrature. La mise en forme de signaux dans le spectre atténue les parties intra-bande du signal AMDC contiguës aux fréquences de coupure. On peut appliquer la technique de commande d'émission de signaux AMDC dans une station de base AMDC pour en augmenter la portée et la capacité.

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