User equipment using random access channel (rach) parameters to adjust transmit power, and method of using the rach parameters to adjust transmit power

A user equipment, comprising:

• a memory with computer-readable instructions;
• and
• at least one first processor configured to read the computer-readable instructions, the at least one first processor being configured to,
• receive a broadcast message, the broadcast message including random access channel, RACH, parameters,
• transmit a first message following receipt of the broadcast message, the first message including RACH preambles,
• receive a second message, the second message being an acknowledgement message that acknowledges receipt of the first message,
• transmit a third message, the third message including power settings based on a successful transmission of the first message,
• receive a fourth message, the fourth message including contention resolution information that adjusts the RACH parameters,
• decode RACH parameters and the contention resolution information to obtain decoded RACH parameters, and
• adjust an initial transmit power of the user equipment to be a first transmit power based on the decoded RACH parameters.

A method performed by a user equipment, comprising:

• receiving, by at least one first processor of the user equipment, a broadcast message, the broadcast message including random access channel, RACH, parameters;
• transmitting, by the at least one first processor, a first message following receipt of the broadcast message, the first message including RACH preambles;
• receiving, by the at least one first processor, a second message, the second message being an acknowledgement message that acknowledges receipt of the first message;
• transmitting, by the at least one first processor, a third message, the third message including power settings based on a successful transmission of the first message;
• receiving, by the at least one first processor, a fourth message, the fourth message including contention resolution information that adjusts the RACH parameters;
• decoding, by the at least one first processor, RACH parameters and the contention resolution information to obtain decoded RACH parameters;
• and
• adjusting, by the at least one first processor, an initial transmit power of the user equipment to be a first transmit power based on the decoded RACH parameters.