Method and apparatus for maintaining channel priority in a...

H - Electricity – 04 – B

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H04B 1/04 (2006.01) H04B 1/76 (2006.01) H04Q 7/22 (2006.01) H04Q 7/36 (2006.01)

Patent

CA 2237597

A method and system are disclosed for a transmitter to maintain priority on a communication channel in a multiple wireless communication system environment. An exemplary method for maintaining priority includes transmitting a priority signal to maintain priority for the transmitter on the communication channel. The priority signal may be pseudo-random noise (PRN) signals. In one embodiment, the PRN signals are transmitted in response to activity sensed on the communication channel, one cause of which may be a contending transmitter transmitting on the communication channel. In this embodiment the step of transmitting is for a predetermined duration and causes the contending transmitter to stop transmitting on the communication channel. In an alternate embodiment, the transmission of the PRN signals is periodic and occurs sufficiently often to cause the contending transmitter to abstain from ever transmitting on the communication channel.

Procédé et système pour un émetteur afin de maintenir une priorité sur un canal de communication dans un environnement à système multiple de communication sans fil. Un exemple de la méthode de maintien de la priorité consiste à transmettre à un signal de priorité afin de maintenir la priorité de l'émetteur sur le canal de communication. Le signal de priorité peut être un signal de bruit pseudo-aléatoire. Dans un mode de réalisation, les signaux de bruit pseudo-aléatoire (PRN) sont transmis en réponse à une activité détectée sur le canal de communication, une des causes pour cela pouvant être un émetteur rival qui transmet sur le canal de communication. Dans ce mode de réalisation, l'étape transmission est de durée prédéterminée, et oblige l'émetteur rival à arrêter de transmettre sur ce canal de communication. Dans un autre mode de réalisation, la transmission des signaux de bruits pseudo-aléatoires (PRN) est périodique et se produit suffisamment souvent pour obliger l'émetteur rival à ne plus jamais transmettre sur ce canal de communication.

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