Patent ID: 11956746
Assignee: nan
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for a user device of a wireless network to synchronize a clock of the user device with a clock of a base station of the wireless network, the method comprising:
receiving, from the base station, three temporally successive resource elements comprising a first resource element, a second resource element, and a third resource element, of a resource grid comprising subcarriers in frequency and symbol-times in time;
wherein the first resource element comprises a first signal, the second resource element comprises a second signal, and the third resource element comprises a third signal;
measuring a first energy of the first signal, a second energy of the second signal, and a third energy of the third signal;
determining a signal difference comprising the first energy measurement minus the third energy measurement;
determining a ratio comprising the signal difference divided by the second energy measurement;
determining, according to the ratio, a timing offset; and
causing the clock of the user device to be synchronized with the clock of the base station by subtracting the timing offset from the clock of the user device.