A method to ensure the quality of preferred communication services such as voice versus regular data

摘要

The invention relates to a method to ensure the quality of preferred (communications) services, especially voice services, in a local data network (LN) with different types of services, where data congestion or data collision on a shared transmission medium (TM) is treated by a collision detection method and by application of re-transmission rules after detection of data collisions, wherein depending on the type of service (e.g. voice or data), the corresponding data packets are subject to different re-transmission rules and that data packets of a preferred type of service (i.e. voice) are subject to re-transmission rules, that ensure a preferred treatment against data packets of other types of services (regular data that is not time critical), a local network, a station, a local network controller and a program module therefor.