Apparatus and method for doppler shift compensation scheme

H - Electricity – 04 – W

Patent

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Details

H04W 56/00 (2009.01) H04B 17/00 (2006.01)

Patent

CA 2602264

At least one embodiment of the invention provides an automated frequency offset compensation method, system, and apparatus that improves throughput between one or more wireless communication devices by compensating for frequency offsets caused by a Doppler effect. In particular, one implementation estimates the frequency offset and uses this to compensate the carrier signal power to interference power ratio (C/I) when the transmitting and receiving devices are moving relative to each other such that a Doppler effect creates a frequency offset in the perceived frequency of the received carrier signal.

Au moins un mode de réalisation de l'invention concerne un appareil, un système et un procédé de compensation de décalage de fréquence automatisé qui améliore le débit entre un ou plusieurs dispositifs de communication sans fil par compensation des décalages de fréquence entraînés par un effet Doppler. Plus particulièrement, une mise en oeuvre de l'invention estime le décalage de fréquence et l'utilise en vue de compenser la puissance de signal de porteuse afin de faire interférence avec le coefficient de puissance (C/I) lorsque les dispositifs de transmission et de réception se déplacent l'un par rapport à l'autre de sorte que l'effet Doppler crée un décalage de fréquence dans la fréquence perçue du signal de porteuse reçu.

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