Patent ID: 11910443
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A physical random access channel (PRACH) detection method, comprising:
determining a user distribution quantity of each beam in at least two groups of beams based on historical data;
sorting 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 detecting frequency domain data for each beam in the at least two groups of beams according to the beam detection sequence;
obtaining frequency domain data of a frequency corresponding to a PRACH from frequency domain data of a beam of the at least two groups of beams;
determining a time domain correlation peak of the PRACH based on the frequency domain data of the frequency corresponding to the PRACH;
determining 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, sending 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.