A base station distributed unit sends, to a base station central unit, configuration parameters of at least one periodic radio resource for packet transmissions of a wireless device in a radio resource control, RRC, inactive or RRC idle state. The base station distributed unit maintains, in the RRC inactive or RRC idle state of the wireless device, the configuration parameters of the at least one periodic radio resource. The base station distributed unit receives, from the wireless device in the RRC inactive or RRC idle state, one or more transport blocks via the at least one periodic radio resource.