Method and apparatus for frame detection in a communications...

H - Electricity – 04 – J

Patent

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H04J 3/02 (2006.01) H04B 7/212 (2006.01) H04B 7/26 (2006.01)

Patent

CA 2727865

A method of determining a boundary of a subframe in a time division duplexing (TDD) system is provided. The method detects a power level of a signal on at least one radio frequency, the signal comprising at least one subframe. A time-domain correlation is done on the detected signal with a first reference signal, wherein the first reference signal represents at least one subframe. The location in time of a boundary of the at least one subframe of the detected signal is determined based on the correlation of the detected signal and the first reference signal.

Linvention porte sur un procédé permettant de déterminer les limites dune trame dans un système duplex à répartition dans le temps (TDD). Le procédé détecte un niveau de puissance dun signal sur au moins une fréquence radio, ledit signal comprenant au moins une sous-trame. Une corrélation de domaine temporel est réalisée sur le signal détecté, au moyen dun premier signal de référence, ledit premier signal de référence représentant au moins une sous-trame. Lemplacement dans le temps dune limite de ladite ou desdites sous-trames du signal détecté est déterminé sur la base de la corrélation du signal détecté et dudit premier signal de référence.

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