Random access procedure for machine type communication

A device comprising:

• a radio transceiver that communicates over a mobile telecommunications network;
• and
• a processor configured to:
• control the radio transceiver to transmit a physical random access channel (PRACH) preamble on a first time-frequency resource;
• monitor a second time-frequency resource for a first downlink (DL) grant scheduling a random access response (RAR) corresponding to the transmitted PRACH preamble on a third time-frequency resource;
• control the radio transceiver to receive the RAR on the third time-frequency resource;
• control the radio transceiver to transmit a connection request message on a fourth time-frequency resource, wherein the fourth time-frequency resource is determined based on the RAR;
• determine a fifth time-frequency resource based on a time-frequency resource index, wherein the RAR includes the time-frequency resource index;
• and
• monitor the fifth time-frequency resource for a second DL grant scheduling a contention resolution message.

A method, comprising:

• receiving at least one physical random access channel (PRACH) preamble on a first time-frequency resource;
• determining a time-frequency resource index;
• transmitting a first downlink (DL) grant on a second time-frequency resource, the first DL grant scheduling a random access response (RAR) corresponding to the received PRACH preamble on a third time-frequency resource, wherein the RAR comprises the time-frequency resource index;
• receiving a connection request message on a fourth time-frequency resource, wherein the fourth time-frequency resource is determined based on the RAR;
• and
• transmitting a second DL grant on a fifth time-frequency resource, the second DL grant scheduling a contention resolution message, wherein the fifth time-frequency resource is based on the time-frequency resource index.