NB-IoT PRACH Resource Partitioning And Multiple Grants In RAR For EDT

A method, comprising:

• calculating, by a processor of a user equipment (UE), a transport block size (TBS) that fits an uplink (UL) data packet of the UE;
• selecting, by the processor, one or more physical random access channel (PRACH) resources for early data transmission (EDT) for the TBS based on a wireless communication coverage of the UE by a network node of a wireless network;
• and
• transmitting, by the processor, to the network node in a random access (RA) procedure with the network node a first message (Msg1) indicating the selected one or more PRACH resources.

An apparatus implementable in a user equipment (UE), comprising:

• a processor capable of:
• calculating a transport block size (TBS) that fits an uplink (UL) data packet of the UE;
• selecting one or more physical random access channel (PRACH) resources for early data transmission (EDT) for the TBS based on a wireless communication coverage of the UE by a network node of a wireless network;
• and
• transmitting to the network node in a random access (RA) procedure with the network node a first message (Msg1) indicating the selected one or more PRACH resources.