A method of operating a wireless terminal (UE-a), the method comprising: transmitting a random access preamble of a random access procedure from the wireless terminal (UE-a) to a node (BS-a) of a radio access network, RAN; and after transmitting the random access preamble, receiving a random access response, RAR, of the random access procedure from the node (BS-a) of the radio access network, wherein the random access response includes an Uplink, UL, grant for a Message 3 uplink communication of the random access procedure, wherein the UL grant includes: a time domain configuration associated with the Message 3 uplink communication, wherein the time domain configuration includes (a) a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or (b) Transmission Time Interval, TTI, information for the Message 3 uplink communication; and, a frequency domain configuration associated with the Message 3 uplink communication, wherein the frequency domain configuration includes, a resource block assignment that indicates Physical Resource Block, PRB, resources for the Message 3 uplink communication, wherein the resource block assignment includes (a) an UL narrowband index and (b) a set of PRB pairs within the narrowband, and/or a frequency hopping configuration of the Message 3 uplink communication. transmitting a random access preamble of a random access procedure from the wireless terminal (UE-a) to a node (BS-a) of a radio access network, RAN; and after transmitting the random access preamble, receiving a random access response, RAR, of the random access procedure from the node (BS-a) of the radio access network, wherein the random access response includes an Uplink, UL, grant for a Message 3 uplink communication of the random access procedure, wherein the UL grant includes: a time domain configuration associated with the Message 3 uplink communication, wherein the time domain configuration includes (a) a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or (b) Transmission Time Interval, TTI, information for the Message 3 uplink communication; and, a frequency domain configuration associated with the Message 3 uplink communication, wherein the frequency domain configuration includes, a resource block assignment that indicates Physical Resource Block, PRB, resources for the Message 3 uplink communication, wherein the resource block assignment includes (a) an UL narrowband index and (b) a set of PRB pairs within the narrowband, and/or a frequency hopping configuration of the Message 3 uplink communication. a time domain configuration associated with the Message 3 uplink communication, wherein the time domain configuration includes (a) a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or (b) Transmission Time Interval, TTI, information for the Message 3 uplink communication; and, (a) a repetition factor that defines a number of repetitions across subframes for the Message 3 uplink communication, and/or (b) Transmission Time Interval, TTI, information for the Message 3 uplink communication; and, a frequency domain configuration associated with the Message 3 uplink communication, wherein the frequency domain configuration includes, a resource block assignment that indicates Physical Resource Block, PRB, resources for the Message 3 uplink communication, wherein the resource block assignment includes (a) an UL narrowband index and (b) a set of PRB pairs within the narrowband, and/or a frequency hopping configuration of the Message 3 uplink communication. <EOS>