H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 17/00 (2006.01) H04Q 7/20 (2006.01) H04Q 7/26 (2006.01) H04Q 7/34 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2341245
A method for use in a receiver in a time division multiple access (TDMA) wireless communication system to determine whether a channel is occupied and whether the transmitter occupying the channel is internal or external to the system. The method comprises the steps of receiving a signal, on a channel determining that the channel is unoccupied when the signal strength of the cannel signal is below a threshold, determining that the transmitter is internal to the system when the received signal is highly correlated to a signal that is known to contain the proper predefined field.
L'invention concerne un procédé à utiliser dans un système de communication sans fil à accès multiple par répartition dans le temps (AMRT) pour déterminer si une voie est occupée et si l'émetteur occupant la voie est interne ou externe au système. Ledit procédé consiste à recevoir un signal, à déterminer sur une voie si la voie est inoccupée lorsque l'intensité du signal sur la voie est inférieure à un seuil, à déterminer si l'émetteur est interne au système lorsque le signal reçu est fortement corrélé à un signal répertorié comme contenant le champ prédéfini approprié.
Center Stephen Douglas
Wallstedt Yngve Kenneth
Ericsson Inc.
Marks & Clerk
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