Patent ID: 7522935
Filing Date: 2009-04-21
Classification: H04L,H04W

Abstract:
1. A method for controlling the transmission of feedback of mobile terminals receiving via an air interface of a mobile communication system a multicast or broadcast service transmitted or forwarded by a feedback control entity of the mobile communication system, the method being performed by a mobile terminal and comprising: receiving the multicast or broadcast service via a unidirectional downlink channel and using an unreliable transport protocol, receiving parameters comprising a probability value for a probabilistic experiment based on which the mobile terminal decides whether to provide feedback on reception statistics of the multicast or broadcast service to the feedback control entity, deciding whether to provide feedback on the reception statistics of the multicast service or broadcast to the feedback control entity based on the probabilistic experiment using the received probability value, and in case it is decided to provide feedback, transmitting the feedback indicating reception statistics of said multicast or broadcast service to the feedback control entity.