A wireless device transmits one or more radio resource control (RRC) messages indicating assistance information, where the assistant information indicates: an identifier indicating a logical channel; and one or more periodicities associated with the logical channel. The wireless device receives, in response to the assistance information, one or more second RRC messages indicating one or more configured grant configurations. The wireless device triggers a buffer status report in response to data of the logical channel becoming available. In response to receiving one or more activation commands indicating activation of the one or more configured grant configurations, the wireless device cancels the buffer status report.