Bluetooth ranging correction method and apparatus, initiator, and medium

A method of Bluetooth ranging correction, applicable to an initiator of a Bluetooth ranging apparatus further comprising a reflector, the method comprising:

• sending, by the initiator, a first continuous wave signal, the reflector being configured to perform frequency conversion on the first continuous wave signal to obtain a first measurement value;
• switching, by the initiator, to a reception state, and obtaining a first timestamp that indicates time at which the initiator switches to the reception state;
• receiving, by the initiator, a second continuous wave signal sent by the reflector, and obtaining a second timestamp that indicates time at which the initiator receives the second continuous wave signal;
• performing, by the initiator, frequency conversion on the second continuous wave signal to obtain a second measurement value;
• and
• obtaining, by the initiator, the first measurement value from the reflector, performing correction on the first measurement value and the second measurement value using the first timestamp and the second timestamp, and determining a distance between the initiator and the reflector by using the corrected first and second measurement values.

An initiator for a Bluetooth ranging apparatus further comprising a reflector;

• wherein the initiator is configured to send a first continuous wave signal, the reflector being configured to perform frequency conversion on the first continuous wave signal to obtain a first measurement value;
• the initiator is configured to switch to a reception state, and obtain a first timestamp indicating time at which the initiator switches to the reception state;
• the initiator is configured to receive a second continuous wave signal sent by the reflector, and obtain a second timestamp indicating time at which the initiator receives the second continuous wave signal;
• the initiator is configured to perform frequency conversion on the second continuous wave signal to obtain a second measurement value;
• and
• the initiator is configured to obtain the first measurement value from the reflector, perform correction on the first measurement value and the second measurement value using the first timestamp and the second timestamp, and determine a distance between the initiator and the reflector by using the corrected first and second measurement values.