Apparatuses and methods for small data transmission in a radio resource control (rrc) inactive state

A User Equipment (UE), comprising:

• a wireless transceiver, configured to perform wireless transmission and reception to and from a mobile communication network;
• and
• a controller, configured to perform the following via the wireless transceiver:
• operating in a Radio Resource Control (RRC) inactive state as configured by the mobile communication network;
• in response to a Small Data Transmission (SDT) procedure being triggered in the RRC inactive state, monitoring a signal quality of a serving cell of the mobile communication network or determining a traffic type of data to be transmitted in the SDT procedure;
• and
• determining whether to perform the SDT procedure based on the signal quality of the serving cell or the traffic type of the data.

A method, executed by a User Equipment (UE) communicatively connected to a mobile communication network, the method comprising:

• operating in a Radio Resource Control (RRC) inactive state as configured by the mobile communication network;
• performing a Small Data Transmission (SDT) procedure in the RRC inactive state by transmitting data to the mobile communication network;
• and
• during the SDT procedure, monitoring a signal quality of a serving cell of the mobile communication network and reporting the signal quality of the serving cell to the mobile communication device.