Transmission, retransmission, and hybrid automatic repeat request process using preconfigured uplink resources in idle mode

An apparatus, comprising:

• radio front end circuitry;
• and
• processing circuitry coupled to radio front end circuitry, wherein the processing circuitry is configured to:
• establish a first preconfigured uplink resource (PUR) and a second PUR for use by the apparatus in IDLE mode;
• transmit, using the radio front end circuitry, uplink data using the first PUR while in IDLE mode using a hybrid automatic repeat request (HARD) process;
• start a PUR retransmission timer;
• monitor a control channel for an acknowledgement message;
• identify an expiration of the PUR retransmission timer prior to receiving the acknowledgement message;
• and
• in response to the identifying, retransmit the uplink data using the second PUR.

A method, comprising:

• establishing a first hybrid automatic repeat request (HARQ) process corresponding to a first preconfigured uplink resource (PUR) and a second HARQ process corresponding to a second PUR for use by a user equipment (UE) in IDLE mode;
• transmitting uplink data using the first HARQ process and the first PUR while in IDLE mode;
• starting a PUR retransmission timer;
• monitoring a control channel for an acknowledgement message;
• identifying an expiration of the PUR retransmission timer prior to receiving the acknowledgement message;
• and
• in response to the identifying, retransmitting the uplink data using the second HARQ process and the second PUR.