Selective reallocation of previously allocated radio resources

摘要

An access node (100) of a cellular network sends an uplink grant to a communication device (10-A, 10-B, 10-C). The uplink grant indicates uplink radio resources allocated to the communication device (10-A, 10-B, 10-C) in reoccurring time intervals. The access node (100) monitors a uplink radio resource, configured before each of the reoccurring time intervals, for an indication of intention to transmit uplink data by an uplink transmission on the indicated uplink radio resources in the corresponding reoccurring time interval. In response to not detecting the indication and determining a need for an uplink transmission in the corresponding reoccurring time interval by a further communication device (10-A, 10-B, 10-C), the access node (100) reallocates the indicated uplink radio resources in the corresponding time interval to the further communication device.