Electronic device control method and electronic device

An electronic device, comprising:

• a touchscreen;
• a display drive circuit and a touch sensor that match the touchscreen;
• at least one memory, storing a program;
• and
• at least one processor, configured to execute the program stored in the memory, wherein when the program stored in the memory is executed, the processor is configured to perform following steps:
• performing, by the display drive circuit, pixel scan;
• collecting, by the touch sensor, touch signals, each touch signal for a set of S rows of pixels scanned by the display drive circuit, wherein S≥1, wherein each N consecutive touch signals form a group;
• and
• transmitting an uplink synchronization signal in a slot corresponding to a Kth touch signal in each group, 1≤K≤N, and the uplink synchronization signal indicates time alignment for an external device.

A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is run on an electronic device, the electronic device is enabled to perform the following steps:

• performing, by the display drive circuit, pixel scan;
• collecting, by the touch sensor, touch signals, each touch signal for a set of S rows of pixels scanned by the display drive circuit, wherein S≥1, wherein each N consecutive touch signals form a group;
• and
• transmitting an uplink synchronization signal in a slot corresponding to a Kth touch signal in each group, 1≤K≤N, and the uplink synchronization signal indicates time alignment for an external device.