Method and apparatus for combining ul data with a feedback of dl data in a wireless communication system

A wireless device in a wireless communication system comprising:

• a transceiver;
• a memory;
• and
• at least one processor operatively coupled to the transceiver and the memory, and configured to:
• control the transceiver to receive, from a network, information informing whether an application level uplink (UL) data, subsequent to a downlink (DL) data, is expected or not;
• initiate random access procedure;
• control the transceiver to receive, from the network, the DL data in the random access procedure;
• and
• control the transceiver to transmit a UL signaling including both the application level UL data and a feedback of the DL data based on the information informing that the application level UL data subsequent the DL data is expected.

A non-transitory computer-readable medium having stored thereon a plurality of instructions, which, when executed by a processor of a wireless device, cause the wireless device to:

• receive, from a network, information informing whether an application level uplink (UL) data, subsequent to a downlink (DL) data, is expected or not;
• initiate random access procedure;
• receive, from the network, the DL data in the random access procedure;
• and
• transmit a UL signaling including both the application level UL data and a feedback of the DL data based on the information informing that the application level UL data subsequent the DL data is expected.