Method for fast acknowledgement and identification of a...

H - Electricity – 04 – B

Patent

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Details

H04B 1/10 (2006.01) H04B 7/26 (2006.01) H04L 1/16 (2006.01)

Patent

CA 2691513

A method is provided in a base station for handling a request from a first user equipment for accessing a service in a radio communications network. The method comprises the steps of receiving a first time interval of an incoming signal comprises a first signal sent from the first user equipment and a second signal sent from the second user equipment, interpreting the first signal as being a possible service access request message preamble, and sending an acknowledgement, that the preamble is detected, to the first user equipment. The method comprises the further steps of delaying the first time interval of the incoming signal, identifying the second signal in the first time interval of the incoming signal during the delay, washing the identified second signal away from the first time interval of the incoming signal during the delay, and deciding whether the possible preamble is a real preamble or not, by analysing the washed incoming signal.

L'invention concerne un procédé de traitement, dans une station de base, d'une demande provenant d'un premier équipement utilisateur pour accéder à un service dans un réseau de communications radio. Le procédé consiste à recevoir un premier intervalle de temps d'un signal entrant comprenant un premier signal envoyé par le premier équipement utilisateur et un second signal envoyé par le second équipement utilisateur; interpréter le premier signal comme un préambule de message de demande d'accès de service possible et envoyer au premier équipement utilisateur un accusé de réception disant que le préambule est détecté. Le procédé consiste également à retarder le premier intervalle de temps du signal entrant, identifier le second signal du premier intervalle de temps du signal entrant pendant ce retard, atténuer le second signal identifié provenant du premier intervalle de temps du signal entrant pendant ce retard et décider si le préambule possible est ou non un préambule réel par analyse du signal entrant atténué.

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