BigPatents India

The invention relates to a method for controlling transmission over a radio channel between a sending unit and a group of receiving units in a radio communication system, the method comprising the following steps relating to information aimed at a subgroup of at least one receiving unit of said group of receiving units - transmitting said information over the radio channel from the sending unit; upon reception of said information, transmitting an acknowledgement from at least each receiving unit of the subgroup, which has received said information correctly over said radio channel; and - checking whether acknowledgments have been received by the sending unit from each receiving unit of said subgroup.