Method and modem for adaptive allocation of the pilot...

Details Method and modem for adaptive allocation of the pilot... Method and modem for adaptive allocation of the pilot...

Category

H - Electricity

Subcategory

04

Subsubcategory

B

IPC codes

H04B 1/76 (2006.01) H04L 7/06 (2006.01) H04L 27/26 (2006.01) H04M 11/06 (2006.01)

Type

Patent

Patent number

CA 2195234

Description

In a multi-carrier system the pilot carrier which is transmitted between two stations for synchronisation purposes, is re-allocated to a new frequency whenever it is disturbed by noise or a single frequency disturber in the vicinity thereof. A less noisy frequency is selected by means of a specific criterion to be fulfilled, for instance based on signal to noise ratio measurements performed for all carriers in the multi-carrier system.

ans un système multiporteuse, la porteuse pilote transmise entre deux stations aux fins de la synchronisation est transposée à une nouvelle fréquence quand elle est perturbée par un bruit ou un signal monofréquence voisin. Une fréquence moins parasitée est sélectionnée au moyen d'un critère spécifique, lequel peut par exemple être basé sur des mesures du rapport signal sur bruit pour toutes les porteuses du système

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