A wireless device receives configuration parameters of logical channels. The logical channels comprise 1st logical channel having a 1st logical channel priority. The 1st logical channel is mapped to transmission duration(s). A buffer status report is triggered in response to: uplink data becoming available for the 1st logical channel in 1st plurality logical channels with uplink data; and the 1st logical channel priority being higher than priorit(ies) of selected logical channel(s) in the 1st logical channel(s). The selected logical channel(s) are selected in response to being mapped to transmission duration(s). The buffer status report may be transmitted to the base station.