Method for the realization of a quick and complete...

H - Electricity – 04 – Q

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H04Q 7/38 (2006.01)

Patent

CA 2325950

Description of a method and a receiver for the realization of the radio access to a channel of a digital telecommunication system, as for example of the type operating according to the DECT standard. The receiver is of the type comprising a frequency synthesizer circuit, a correlation circuit for the capture of the received time slot, a circuit for the clock recovery, a demodulation circuit, a decision circuit, a circuit for the measurement of the value of the received power or RSSI. According to the invention the receiver comprises moreover: means for the quick sampling (SAMPLER) of the RSSI signal made available by the same receiver; means for the analog/digital conversion (A/D CONVERT) of the signal corresponding to the output of the above-mentioned sampling means; means for the processing (DSP) of the signal for the supply of the final value of RSSI. The method enables the execution of a Bearer handover procedure even in the condition of system congestion.

L'invention concerne un procédé et un récepteur permettant l'accès radio à une voie de système de télécommunication numérique, comme, par exemple, un système fonctionnant selon la norme DECT. Le récepteur comporte un circuit synthétiseur de fréquences, un circuit de corrélation pour la capture de l'intervalle de temps reçu, un circuit pour la récupération d'horloge, un circuit de démodulation, un circuit de décision, un circuit pour la mesure de la valeur de la puissance reçue ou de l'indication sur l'intensité du signal reçu RSSI. Par ailleurs, le récepteur de l'invention comprend: des moyens pour l'échantillonnage rapide (ECHANTILLONNEUR) du signal RSSI mis à la disposition par ledit récepteur; des moyens pour la conversion analogique/numérique (CONVERSION A/N) du signal correspondant à la sortie des moyens d'échantillonnage susmentionnés; des moyens de traitement (DSP) du signal pour la production de la valeur finale de RSSI. Le procédé de l'invention permet l'exécution d'une procédure de transfert par porteur, même en cas de congestion du système.

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