Message transmission method and device

A communications device, comprising:

• a transceiver, configured to:
• receive a repetition quantity of an uplink message from a network device, in response to determining that a reference signal receive power (RSRP) range of a terminal device is within an RSRP range corresponding to a signal coverage enhancement level 0, wherein the uplink message comprises a third message of a sequence of messages comprised in a random access attempt;
• at least one processor, and a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, the programming instructions instruct the at least one processor to calculate transmit power based on a power control parameter for the repetition quantity;
• and
• the transceiver is further configured to send the uplink message to the network device based on the calculated transmit power.

A network device:

• a transceiver, configured to:
• send first indication signaling to a communications device, wherein the first indication signaling indicates a repetition quantity of an uplink message, and the first uplink message comprises a third message of a sequence of messages comprised in a random access attempt;
• and
• receive the uplink message sent by a terminal device according to a transmit power based on a power control parameter for the repetition quantity, in response to determining that a reference signal receive power (RSRP) range of the terminal device is within an RSRP range corresponding to a signal coverage enhancement level 0.