Samsung electronics co., ltd. (20240430828). TIME SYNCHRONIZATION ACROSS WIRELESS DEVICES
TIME SYNCHRONIZATION ACROSS WIRELESS DEVICES
Organization Name
Inventor(s)
Abhishek Sehgal of Frisco TX (US)
Jianzhong Zhang of Dallas TX (US)
TIME SYNCHRONIZATION ACROSS WIRELESS DEVICES
This abstract first appeared for US patent application 20240430828 titled 'TIME SYNCHRONIZATION ACROSS WIRELESS DEVICES
Original Abstract Submitted
a method includes calibrating, at a wireless device, a wireless fidelity (wi-fi) chipset-level timer based on a time synchronization function (tsf) frame received from a wi-fi access point. the method also includes performing, at the wireless device, a coarse synchronization of a microcontroller-level or cpu-level timer based on the calibrated wi-fi chipset-level timer. the method further includes performing, at the wireless device, a fine synchronization of the microcontroller-level or cpu-level timer after the coarse synchronization. the fine synchronization is performed according to a first time scale measured in first time units and the coarse synchronization is performed according to a second time scale measured in second time units that are a multiple of the first time units.