Small Data Transmission

A base station comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the base station to:
• receive, by the base station that bars a first access category from a wireless device not in a radio resource control (RRC) connected state, a first message for a small data transmission (SDT) procedure, the first message comprising:
• an RRC request message;
• and
• second uplink data associated with a second access category that is not barred;
• transmit, based on receiving the first message, to the wireless device not in the RRC connected state, a second message indicating subsequent transmission associated with the SDT procedure;
• and
• receive, from the wireless device not in the RRC connected state, a packet associated with the first access category.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the one or more processors to:

• transmit, by the wireless device while not in a radio resource control (RRC) connected state, to a base station that bars a first access category, a first message for a small data transmission (SDT) procedure, the first message comprising:
• an RRC request message;
• and
• second uplink data associated with a second access category that is not barred;
• receive, by the wireless device while not in the RRC connected state, from the base station, a second message indicating subsequent transmission associated with the SDT procedure;
• and
• transmit, by the wireless device while not in the RRC connected state, to the base station, based on the receiving the second message indicating the subsequent transmission associated with the SDT procedure, a packet associated with the first access category.