H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/005 (2006.01)
Patent
CA 2607788
The invention relates to background noise estimation in wireless communication systems with power control. The total received interference is measured at a receiving unit. Thereafter, a predetermined noise signal is injected at the receiving unit and the total received interference is measured again, preferably when the power control of the system has responded to the noise injection. The background noise is calculated based on the injected predetermined noise signal and the interference measurements before and after the noise injection.
Cette invention a trait à l'estimation de bruit de fond dans des systèmes de communication par réglage de puissance. On mesure l'interférence totale reçue au niveau de l'unité de réception. Puis on injecte un signal de bruit prédéterminé au niveau de l'unité de réception et l'on remesure l'interférence totale reçue, de préférence lorsque le réglage de puissance du système à réagi à l'injection de bruit. On calcule le bruit de fond à partir du signal de bruit prédéterminé injecté et à partir des mesures d'interférence effectuées avant et après l'injection de bruit.
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson (publ)
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