Method for selecting time-frequency resources intended to be used by a receiver equipment belonging to a broadcast group for the broadcasting of messages, corresponding devices and computer programs

Abstract

In a vehicle to anything environment, in order to allow the broadcasting of periodic messages, the emitter equipment regularly verifies whether time-frequency resources of a radio signal are used or not. When the emitter equipment detects an available time-frequency resource, it selects it and uses it to broadcast its messages. The duration necessary for the emitter equipment to listen to all the time-frequency resources is approximately one second. Such a listening duration represents a disadvantage for services requiring a short latency, such as services requiring the broadcasting of aperiodic messages. The solution allows an emitter equipment to select a time-frequency resource at any moment according to its needs without having to regularly verify whether or not time-frequency resources are used to broadcast data. Thus, the latency is greatly reduced.