PRACH detection method and apparatus

An apparatus for a base station, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, the memory storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to:
• determine a user distribution quantity of each beam in at least two groups of beams based on historical data;
• sort all beams in the at least two groups of beams in descending order based on the user distribution quantity to obtain a beam detection sequence;
• sequentially detect frequency domain data of each beam in the at least two groups of beams according to the beam detection sequence;
• obtain frequency domain data of a frequency corresponding to a physical random access channel (PRACH) from frequency domain data of a beam of the at least two groups of beams;
• determine a time domain correlation peak of the PRACH based on the frequency domain data of the frequency corresponding to the PRACH;
• determine a first peak value based on the time domain correlation peak of the PRACH, wherein the first peak value is a highest peak value in the time domain correlation peak of the PRACH;
• and
• when the first peak value is greater than or equal to a first threshold, send a random access response message to a user equipment, wherein the random access response message is used to establish a connection between the user equipment and a base station.