METHOD FOR RESOLVING CALL COLLISIONS IN A DIGITAL CONVENTIONAL DIRECT MODE

摘要

A process for resolving call collisions in a digital conventional direct mode includes monitoring a direct mode communication channel for transmissions from other direct mode radios in the plurality of direct mode radios. In response to detecting a new call request: identifying a last radio to transmit on the direct mode channel, transmitting a new call request for receipt by the last direct mode radio to transmit, monitoring the direct mode channel for a response from the last radio to transmit, and if a call grant granting the new call request is received from the last radio to transmit, initiating the new direct mode call on the direct mode communication channel. If the call grant is not received, at least temporarily refraining from initiating the new direct mode call.

主权项

1. A method for resolving call collisions in a direct mode communication system among a plurality of direct mode radios, the method comprising, at a first direct mode radio out of the plurality of direct mode radios:
transmitting, on a direct mode communication channel, one or more transmissions during a first direct mode call to the other direct mode radios in the plurality of direct mode radios, the transmissions including an identifier identifying the first direct mode radio; after making the last transmission of the first direct mode call, transitioning to an arbitrating mode for the direct mode communication channel and monitoring the direct mode communication channel for any new direct mode call requests from other direct mode radios in the plurality of direct mode radios.