Transmitting node and method therein for performing data transmissions to at least one receiving node on a radio channel in a wireless communications network

摘要

A transmitting node and a method performed by a transmitting node for performing data transmissions to at least one receiving node on a radio channel in a wireless communications network. First, the transmitting node sets at least two contention window sizes. The at least two contention window sizes are separately determined based on information associated with the least one receiving node. Then, the transmitting node defers a first transmission of data to the at least one receiving node for a first period and also defers at least one second transmission of data to the at least one receiving node. Further, the transmitting node performs a first or at least one second transmission of data to the at least one receiving node when an outcome of a corresponding first and at least second periods of observation of the radio channel, respectively, is that the radio channel is idle.